Power supply interface for electric tool powered by plurality of battery packs, and adapter. RU patent 2518518.

FIELD: electricity.

SUBSTANCE: electric tool containing tool case, electric load placed inside the above tool case; power supply interface for the above electric tool containing interface of the first battery pack adapted for removable fastening of the first battery pack and including an input terminal of the first battery positive terminal and an input terminal of the first battery negative terminal; interface of the second battery pack adapted for removable fastening of the second battery pack and including an input terminal of the second battery positive terminal and an input terminal of the second battery negative terminal. The input terminal of the first battery negative terminal is connected electrically to the input terminal of the second battery positive terminal, at that the input terminal of the first battery positive terminal is connected electrically the input terminal of the second battery negative terminal through the above electrical load. The indicators (160; 260) adapted for data display in regard to the respective states of the first battery packs are placed so that they are seen simultaneously by the electric tool user.

EFFECT: increased operational reliability of the battery pack.

20 cl, 22 dwg

Cross-reference to related applications

This application claims the priority of an application at the U.S. patent № 12/888100, registered on September 22, 2010, and patent applications Japan № 2010-029505, registered February 12, 2010, the contents of which are incorporated here by reference.

The technical field to which the invention relates

The present invention relates to the interface power source for electric tool, fed by many battery packs.

Description of the prior art

US patent # 5028858 describes electric tool that simultaneously uses two battery power as an energy source. This electrical tool these two battery are connected in series so that the motor electric tool is served by high voltage. The result can generate higher output voltage required for energy-intensive actions, which is higher than the possible when only one is used, the battery as a power source.

Summary of the invention

When the battery power supplies are connected in series, battery packs in some situations, it may be damaged. For example, when the charging status of the two portable battery packs differ, one, the battery may become excessively discharged and can then charge another battery pack in the opposite direction (i.e. reverse charge). In this case excessively discharged portable battery pack may be damaged so severely that he can no longer be used.

In an attempt to avoid this problem, the U.S. patent № 5028858 describes the use of two LEDs to indicate the appropriate charging status of these two battery packs. However, even when such indicators are used, battery packs can be over-discharged or overheat if the user cannot see indicators easily and properly. In particular, when using multiple indicators, the user should carefully observe all indicators. If the user does not see the indicator, which indicates an abnormality, since the indicator is in position, invisible to the user, the battery pack corresponding to the indicator, is still too low or too hot.

According to one aspect of the present invention, this problem is overcome by using an interface power source indicated in paragraph 1. Through the use of a variety of indicators, adapted to specify at least one state each relevant battery pack, so that all indicators simultaneously visible to the user electric tool, the information communicated all the indicators that can easily and reliably be issued to the user, so that the probability of an abnormal condition of the battery, which is designated for one or more controlled battery packs, is significantly reduced.

In one embodiment of the present invention electric tool, preferably, contains the main body holding the instrument, and the electric motor located in the main building. Applying many of the interfaces first battery, and each interface battery configured for removable install or attach one of the first portable battery pack. Multiple interfaces first battery powered electrically connect many attached the first battery power supplies in series with the motor. Use a multitude of indicators, and each indicator is configured to specify at least one state, one of the first battery pack attached to one of the interfaces of the first battery. Many indicators are arranged so that all indicators simultaneously visible for one user of the tool.

With this tool the user can conveniently and reliably to see all indicators simultaneously and, therefore, can visually determine the appropriate condition attached battery packs simultaneously. As a result, if an abnormal condition of one or more indicators, the user of the tool can immediately stop the use of electric tool and, thus, to avoid unnecessary and perhaps irreparable damage to a battery source(s) of supply.

The present invention can be used for any type of cordless power tools, including, but not limited to, electrical tools for metal processing, electrical tools for wood processing, electrical tools for stone processing and electric tools for gardening. Specific examples include, but are not limited to, electric drills, electric impact wrenches and shurupoverty, electric pneumatic impact wrenches actions, electric grinding tools, electric circular saw, electric gang saw tools, electric mechanical jigsaws, electric band saws, electric hammer, electric cutting tools, electric chain saw, electric planer tools, electric nail hammering instruments including electric riveting hammers), electric staplers, electric shears, electric hedge shears, electric shears, electric lawn mowers, electric trimmers, electric blowers (blower to remove leaves), electric hand-held lanterns, electric vibrators for compaction of concrete and electric vacuum cleaners.

In one embodiment of the present invention, preferably, each battery pack contains a set of lithium-ion cells, and the nominal voltage of the battery power source is equal to or greater 7,0 volts, preferably, is equal to or above 12.0 volts and, even more preferably, equal to, or greater 18,0 volts. Pererastala and overheating can cause considerable damage Li-ion elements. Therefore, the present invention is preferable to prevent pererastaet and over-temperature lithium-ion cells and, thus, increase the lifetime of the battery packs.

In another aspect of the invention, the electric tool, which usually operates with a rated voltage of 36 volts, preferably, is driven by two battery packs, each of which contains a set of lithium-ion cells and each of which has a nominal voltage of 18 volts. In this embodiment, the invention of the electric tool, with higher voltage can eat easily accessible battery packs less power. Thus, electric tool with a higher voltage (for example, a tool to 36 volts) can be used, even if the corresponding high-voltage battery pack (that is, the battery pack to 36 volts) is not available to the user. Such variant of carrying out the invention also preferred because of the battery pack smaller voltage (for example, the battery pack on 18 volts) can also be used with the appropriate tools smaller voltage (for example, tools to 18 V), thus providing greater flexibility and convenience for the user.

Nominal voltage typical lithium-ion element is 3.6 volts. Thus, the battery with rated voltage 18 V, includes at least five of lithium-ion cells in series. The battery with rated voltage 18 V, also may include, for example, ten lithium-ion cells, with five pairs of lithium-ion cells are connected in parallel, and five pairs connected in parallel Li-ion cells are connected in series so that issued voltage 18 volts. Similarly, the battery with rated voltage 18 V, may also include 15 or more Li-ion cells with such connected in parallel or in series of elements. The higher the number of lithium-ion cells, the greater the capacity of the battery power supply and hence less electrical current passing each lithium-ion element, when battery power is low because of the fed her load.

According to another aspect of the present invention is considered another issue of the U.S. patent № 5028858. In particular, if applied two or more interfaces battery packs for power tools with two or more battery packs, the load or the motor may be damaged beyond repair, if at least one battery pack with improper rated voltage attached/attached to the interface(interface) portable battery pack.

This problem is solved by the power adapter on p, which prevents the improper connection of the battery pack with interfaces for battery packs.

Additional options for the implementation of the present invention is described in dependent claims.

Brief description of drawings

Fig. 1 - group of products according to one embodiment of the present invention;

Fig. 6 - modified circuit diagram example shown in Fig. 5, having added to it a diagram of the bypass;

Fig. 7 - modified circuit diagram example shown in Fig. 5, which changed the position connection with the scheme of power supply for the main controller;

Fig. 8 - modified circuit diagram example shown in Fig. 5, which changed the position connection with the scheme of power supply for the main controller and added scheme crawl;

Fig. 9 - two low-voltage battery pack connected with the main body high-voltage electric instrument via the adapter with cord connecting the power side of the battery pack with a power side of the main building;

Fig. 10 - the power side of the main body of the adapter, as shown in Fig. 9, shown in more detail;

Fig. 11 - block party battery pack, adapter, shown in Fig. 9, shown in more detail;

Fig. 12 - schematic diagram showing the typical electrical circuit of the adapter, as shown in Fig. 9-11;

Fig. 13 - modified circuit diagram example shown in Fig. 12, having added in it scheme crawl;

Fig. 14 - two low-voltage battery pack connected with the main building electric tool high voltage via an integrated or stand-alone adapter;

Fig. 15 - the top part of the integrated adapter, shown in Fig. 14, in more detail;

Fig. 16 - the lower part of the integrated adapter, shown in Fig. 14, in more detail;

Fig. 17 - known low-voltage electric tool using one of the low-voltage battery power as an energy source;

Fig. 18 - bottom view corresponding to Fig. 17, after the low-voltage the battery pack has been separated from the main body of the low-voltage electric tool;

Fig. 19 - low-voltage battery pack, shown in more detail;

Fig. 20 - known high-voltage electric tool, with one of the high-voltage battery pack, as a source of energy;

Fig. 21 - type in the plan, showing the high-voltage battery pack, separated from the main body of high-voltage electric instrument, and

Fig. 22 - bottom view, showing the high-voltage battery pack, separated from the main building high-voltage electric tool.

Detailed description of the invention

In Fig. 1 shows the approximate without introducing limitations group of cordless tools according to one embodiment of the present invention. As shown in Fig. 1, the group of products includes two types of battery source 10, 30 power, three types of electric tools, 50, 70, 100, and two types of adapters 200, 300. "High voltage" electric instrument 70 usually designed to use one "high voltage" battery source 30 power as an energy source. However adapters 200, 300 can be used for the electrical connection of many "low voltage" battery source 10 power with the main body of 72 electric tool 70 so that electric tool 70 eats the same or essentially the same intensity as "high voltage" battery pack 30 power.

In this typical embodiment, the invention of the first battery source 10 power supply is rated voltage 18 V, and the second battery pack 30 power supply is rated voltage of 36 volts. For convenience, the following description of the first battery source 10 supply having rated voltage 18 V, will also be referred to as "low-voltage battery source 10 power" and the second battery pack to 30 supply having rated voltage 36 V, will also be referred to as "high-voltage battery pack 30 power".

Low-voltage battery source 10 power supply contains (at least) five lithium-ion cells in series. High-voltage battery pack 30 power supply contains (at least) ten rechargeable Li-ion cells in series. Two types of battery source 10, 30 power supply, preferably, is rechargeable using the battery charger (not shown in the figures) after use as energy sources for electric tools 50, 70, 100. In addition, two types of battery source 10, 30 power supply, preferably, are the so-called battery packs "sliding"that set by sliding in/on the appropriate fittings electric tools 50, 70, 100, adapters, 200, 300 or charger. Such a battery source 10, 30 power are already in practical use. In particular, low-voltage battery source 10 power supply rated voltage 18 V widely used. However, connective structure battery packs are not specifically restricted, and a great variety of connection mechanisms battery packs, known in the art, can also usefully be used with the present invention.

Low-voltage battery source 10 power supply may include, for example, ten lithium-ion cells, not five lithium-ion cells, as indicated above in the section "summary of the invention". In this case, ten lithium-ion cells contain five pairs of lithium-ion cells connected in parallel, and five pairs connected in parallel lithium-ion cells connected in series to supply 18 volts. Similarly, high-voltage battery pack 30 power supply may include, for example, twenty-lithium-ion cells, and not ten lithium-ion cells. In this case, the twenty-lithium-ion cells contain ten pairs of lithium-ion cells connected in parallel, and ten pairs connected in parallel Li-ion cells are connected in series to supply 36 volts.

In this typical variant of the invention, the "low voltage" electric tool 50 is designed for a rated voltage of 18 volts, and the other two "high-voltage electric tool, 70, 100 are intended for work with a rated voltage of 36 volts. For convenience, the following description of the electric tool 50 working with nominal voltage 18 V, will be referred to as "low-voltage electrical tool 50", and electrical tools 70, 100, working with a rated voltage of 36 volts, will be referred to as "high-voltage electric tools 70, 100". However, as will be clear that the terms "low" and "high voltage" are relative terms, and simply meant to indicate that according to this aspect of the present invention are two battery pack, which is usually issued currents with different voltages, and two tools, which usually work with different voltages. There is no need for high-voltage device has two times more power than the low-voltage devices, or, in fact, had any specific multiple voltage. For example, some versions of the implementation of the present invention two low-voltage (for example, 18 volt) battery source 10 power supply can be connected in series with electric tool of a higher voltage, which usually works with a rated voltage that is not a multiple of relatively low-voltage battery source 10 power supply, for example, 24 volts. In this case, preferably, use an electric circuit brownout or instrument, or adaptor 200, 300, which connects the battery source 10 power tool.

As shown in Fig. 17 and 18, low-voltage electric tool 50 usually adapted to use the same low-voltage battery source 10 power as their own source of energy. This low-voltage electric tool is 50, for example, electric impact wrench and drives the cartridge 54 instrument as a result of the actions main switch 58. Set wrench, which is a tool that can be installed on the cartridge 54 instrument. Such low-voltage electric tool 50 is already in the practical application and is sold together with the low-voltage battery source 10 supply having rated voltage 18 volts.

The main body of 52 low-voltage electric tool 50 includes one interface 60 battery. Interface 60 battery configured for removable installing or attaching a low-voltage battery source 10 power and low-voltage battery source 10 power can sliding be installed or attached to it. Interface 60 battery has a couple of guides 62, the input terminal 64a positive electrode, the input terminal 64b negative electrode and the notch 68 to receive latch. Preferably, also applied terminal I / o controller power supply, but it is not shown in Fig. 18.

As shown in Fig. 19, low-voltage battery source 10 power includes the connector 20, which can sliding be inserted into the interface 60 battery. Connector 20 includes a pair of guides 22, output terminal 24a positive electrode, output terminal 24b negative electrode to terminal 26 autohostname. When low battery source 10 power with slip attached to the interface 60 battery output terminal 24a positive electrode low-voltage battery source 10 power supply electrically connects to the output terminal positive electrode 64a main building 52, and the output terminal of the negative electrode 24b low-voltage battery source 10 power supply is electrically connected to the input terminal of the negative electrode 64b main building 52. In addition, terminal 26 autohostname connects to the terminal I / o controller power supply. In the result of the moving of the connection of low voltage battery source 10 power also physically connected to the main building 52 low-voltage electric tool 50, and elements of 16 battery (see, for example, Fig. 5) electrically connected with the internal wiring diagram of the instrument is 50. In addition, low-voltage battery source 10 power supply has a latch 12, which engages with the notch 68 to receive latch interface 60 battery and with the possibility of separation attaches low-voltage battery source 10 to the power interface 60 battery. Latch 12 may be exempt from seizure 68 to receive latch button's action 14 the release latch.

Below we shall describe two types of high-voltage electric tools 70, 100. The first high-voltage electric tool 70 suited for normal operation using one of the high-voltage battery source 30 power as their own source of energy, as will now be described with reference to Fig. 20, 21 and 22. High-voltage electric tool 70 can be, for example, electric blower, which includes the fan located in the main building 72, which is driven by the action of the main switch 78. Electric blower is 70 electric tool, commonly used in gardening and cleaning by blowing air from the tip 73a nozzles 73 to move the waste, such as fallen leaves. High-voltage electric tool 70 working with a rated voltage of 36 volts, is already in the practical application together with the high-voltage battery source, 30 power, which issues rated voltage of 36 volts.

As shown in Fig. 22, the main body of 72 high-voltage electric tool 70 has one interface 80 battery. Interface 80 battery configured for removable attachment to the high-voltage battery source, 30 power, and high-voltage battery pack 30 power can be inserted into it with slip. Interface 80 battery pack includes a pair of guides 82, the input terminal 84a positive electrode, the input terminal 84b negative electrode terminal 86 I / o controller battery and seizure 88 to receive latch.

High-voltage battery pack 30 power includes the connector 40, which can sliding be inserted into the interface 80 battery, as shown in Fig. 21. Connector 40 includes a pair of guides 42, output terminal 44a positive electrode, output terminal 44b negative electrode and conclusion 46 autohostname. When the high-voltage battery pack 30 power supply is attached to the interface 80 battery output terminal 44a positive electrode high-voltage battery source 30 power supply is connected to the input terminal 84a positive electrode interface 80 battery, and output terminal 44b negative electrode high-voltage battery source 30 power supply is connected to the input terminal 84b negative electrode interface 80 battery. In addition, conclusion 46 autohostname which is electrically connected to the controller battery source, 30 power, as will be further described below, connected to the terminal I / o controller 86 battery. In the high-voltage battery pack 30 power supply is electrically connected to an electric circuit in the main building 72 high-voltage electric tool 70. In addition, the high-voltage battery pack 30 power supply has a latch 32, which engages with the notch 88 to receive latch interface 80 battery and removable attaches high-voltage battery pack 30 power to the interface 80 battery. Latch 32 may be exempt from seizure 88 to receive latch button's action 34 the release latch.

To use current, simultaneously filed two battery source 10 power supply, the main body 102 high-voltage electric tool 100 includes interface 120 power source containing two individual interface 130 batteries (battery pack). Each interface 130 power source configured to install or attach, for example, with slip one low-voltage battery source 10 power. Each interface 130 power supply includes a pair of guides 132, the input terminal 134a positive electrode, the input terminal 134b negative electrode terminal 136 I / o controller battery and seizure 138 to receive latch. Interface 130 power source is essentially identical to the interface 60 power source described above low-voltage electric tool 50 from the point of view of the relevant structures. Two interfaces 130 power supply are close in the back of the main building 102, and low-voltage battery source 10 power can be inserted in the same direction. Two low-voltage battery source 10 power attached to the two interfaces 130 batteries are connected in series and serves the current in an electric circuit of the main building of 102 with a voltage of approximately 36 volts.

The main body 102 high-voltage electric tool 100 also includes two indicators 160, respectively, located over two interfaces 130 battery. Each indicator 160 contains, for example, one or more LEDs or other medium for the issuance of visual information about the battery status of the user of the tool, such as, but not limited to, one or more of the filament lamps and/or display such as an LCD display. In a preferred embodiment of the invention, one of the lights 160 may indicate the charging status or battery level low battery source 10 power attached to a single interface 130 battery, and another indicator 160 can specify the same state (that is, the level of charge) or other state low voltage battery source 10 power, attached to a different interface 130 battery. Preferably, both indicators 160 indicate the condition of the charge or the charge of the corresponding low-voltage battery source 10 power. For example, the led glows when the state of charge decreases to a level at which the necessary charging battery 10 sources of supply. It is also preferable to each indicator 160 indicate the charging status of the corresponding low-voltage battery source 10 power supply, at least, on two levels, such as specifying yellow - warning low battery" and red "immediately stop using the tool". If necessary, it can also be used third green led "allowed the use of the tool so that the user could take a visual confirmation that the battery is in a fit condition for use. It is also preferable to one or more indicators 160 gave out information about possible abnormal temperature batteries (e.g. overheating) appropriate low-voltage battery source 10 power instead of or in addition to the charge of the corresponding low-voltage battery source 10 power.

As shown in Fig. 2, the two indicators 160 located next to the back surface 102a high-voltage electric tool 100 and have the same direction of the mapping (that is, the direction of illumination of these two LEDs are the same or essentially the same). Thus, the user can see both indicators 160 simultaneously and can determine the appropriate charging status of the two low-voltage battery source 10 power convenient and reliable way. In addition, indicators 160 are higher than the corresponding interfaces 130 power sources. Thus, for example, if a high-voltage electric tool 100 abruptly stops working, the user can immediately and easily determine which of low-voltage battery source 10 power supply has a problem or malfunction. Additionally or alternatively, the back surface 102a, two indicators 160 can be located in other places that can be simultaneously observed by the user, such as the upper surface of the main building of 102. More specifically, preferably, two indicators 160 are generally in the same plane, so that the user can simultaneously view two indicators 160 from different directions.

Additionally or alternatively, one or more indicators 160 can also be placed on the outer surface of each low-voltage battery source 10 power, such as the surface of a battery source 10 power supply, which converts ago when battery source 10 power attached to the instrument 100. As described above, preferably, two interfaces 130 power supply are nearby and can take with slip low-voltage battery source 10 power supply in the same direction. In this variant of the invention, when two low-voltage battery source 10 power supply connected to the main unit 102, two indicators 160 will be placed in the same plane, and their display or direction of illumination will also be the same or essentially the same. As a result, even if the indicators 160 located on the corresponding battery 10 power, the user can simultaneously view two indicators 160 from different directions.

Approximate electric circuit for high-voltage electric tool 100, and two low-voltage battery source 10 power that serve as sources of energy for the instrument of 100, will be described below with reference to Fig. 5. Each low-voltage battery source 10 power supply contains five elements battery 16, connected in series, and the controller 18 power supply, preferably, which is the microprocessor. Each item 16, preferably, is a lithium-ion element, and its nominal voltage is 3.6 volts. Five of the 16 elements connected in series, is connected with the output terminal 24A positive electrode and output terminal 24b negative electrode, and the current can pass through these two terminals 24a, 24b with a voltage of approximately 18 volts. As shown in Fig. 5, output terminal 24b negative electrode of the upper low-voltage battery source 10 supply is electrically connected to the output terminal 24A positive electrode lower low-voltage battery source 10 power supply through terminal 134a and 134b, which carries way connected by a wire. As a result, when two low-voltage battery source 10 power supply are connected to the relevant interface 130 battery, the battery cells 16 power of two low-voltage battery source 10 power supply (18 V) are connected in series and serves talk to the electric circuit of the main building of 102 with a voltage of approximately 36 volts.

The controller 18 battery, preferably, contains an integrated circuit, which includes the CPU and can perform contained in various programs. The controller 18 battery electrically connected with each item 16 and can measure the voltage of each item 16. The controller 18 power supply can be programmed to perform the algorithm by which the controller 18 defines the status of the charge or the charge of each item 16 on the basis of measured voltage of each item 16, compares the measured voltage is saved with the specified threshold value and then gives a signal of autohostname to terminal 26 autohostname when at least one item 16 needs charging, based on the stage of the comparison. In this case, the signal autohostname may be a signal, for example, indicating that it found a high resistance. In this embodiment, the invention and all other options described here for carrying out the invention signal autohostname, preferably, can be digital logic signal, which is selected from one of two different voltage levels, i.e. digital signal "1" or "0", which has a distinctly different signal voltage level in comparison with the signal "battery OK". However, it is also assumed that the controller 18 power supply can be analog circuit or mixed analog/digital circuit (for example, the state machine), and the controller 18 battery can deliver analog signals, such as signals, which have more than two levels of voltage), as a signal of autohostname. Naturally, the controller 18 battery is not limited to issuing only signals "Avtostrada", but also can be configured or programmed to issue a variety of signals, for example, representing one or more States batteries such as battery, battery voltage, resistance batteries etc.

The main body 102 also equipped with the main controller 152, chain 142 power source for the main controller 152, shunt resistor 150, connected in series with the motor 176, chain 148 detection of the current, which detects the electrical current flowing to the motor 176, based on the voltage shunt resistor 150, and the scheme 144 I / o signal autohostname, which imposes/outputs signals autohostname to/from transistor 192 regulation of gate voltage.

The main controller 152, preferably, is an integrated circuit, which includes the CPU, and can perform contained in various programs. For example, the main controller 152 can be programmed to perform the following algorithm. After receiving the signal voltage issued by the chain 148 detection voltage as the input signal, the main controller 152 compares the voltage signal with a specified stored threshold/valid value and then gives a signal of autohostname transistor 192 regulation of gate voltage across the circuit 144 I / o signal autohostname when the electric motor current 176 exceeds the specified limit values. In this case the transistor 192 regulation of gate voltage reduces the voltage applied to the gate powerful MOSFET 194, to a voltage of land, thus turning off the powerful field transistors 194. As a result, the motor 176 and low-voltage battery source 10 power supply electrically disconnected, and the motor overload 176 and low-voltage battery source 10 power can be prevented. If necessary, in the way in the circuit between the motor 176 and low-voltage battery source 10 catering can also be provided fuse 162 to prevent the passage of excessive current through the motor 176 and low-voltage battery source 10 power.

The main controller 152 electrically connected to the terminal 136 I / o controller battery (hereinafter "the terminal Avtostrada") interface 130 power supply, and can be a voltage signal (for example, signal autohostname) from the controller 18 batteries as input, and may issue a voltage signal (for example, the alarm cancel to discharge protection) controller 18 battery. In this case, since the two low-voltage battery source 10 power supply are connected in series, the reference voltage (the voltage of the earth) two low-voltage battery source 10 power differ from each other. More specifically, whereas the reference voltage of low-voltage battery source 10 power supply, located on the low voltage side (bottom side of Fig. 5), will be referred to as zero-voltage ground reference voltage low-voltage battery source 10 power supply, located on the high voltage side (upper side of Fig. 5)is 18 volt due serial connection via terminals 24a, 134a, 134b, 24b. The reference voltage of the main building of 102 is a reference voltage of low-voltage source 10 power on the low voltage side and, therefore, is zero voltage. As a result, the levels of input and output voltages signal differ significantly between the main controller 152 main building 102 and controller 18 battery upper low-voltage battery source 10 power supply, located on the high voltage side. Therefore, the voltage signal cannot directly be entered and displayed between controllers 18, 152, if not originally executed conversion (for example, decrease, increase, or other offset voltage) voltage signal.

To overcome this problem, a high-voltage electric tool 100 under this variant of the invention, includes two tools offset voltage level (for example, converters DC) 154b, 156b, located between the controller 18 battery low battery source 10 power supply, located on the high side, and the main controller 152 main building 102. One tool 154b level shifting is located in the conductive line 154, which holds the voltage of the signal from the first output 157b host controller 152 to the controller 18 battery, and increases, preferably proportionally increases the voltage level of the signal issued by the main controller 152, to an acceptable or reading level for the controller 18 battery. Another tool 156b level shifting is located in the conductive line 156 for holding the voltage of the signal from the controller 18 battery to it's input terminal 157a host controller 152 and lowers, preferably proportionally reduces the voltage level of the signal generated by the controller 18 batteries, to an acceptable or reading level for the main controller 152. As a result, the signals can be passed (that is, be entered and displayed) between the controller 18 battery and the main controller 152 without any problems caused by different ranges of voltages are working with two controllers 18, 152.

In addition, between each controller 18 battery and the main controller 152 are also switches 154a, 156a. One switch 154a is located in the conductive line 154 for holding the voltage of the signal from the host controller 152 to the controller 18 battery, and the other switch 156a is located in the conductive line 156 for holding the voltage of the signal from the controller 18 battery to the main controller 152. Switches 154a, 156a manages the main controller 152. When the master controller 152 determines that a high-voltage electric tool 100 is not used for a specified time, the main controller 152 off switches 154a, 156a through the second exit 157c, thus, electrically connected controllers 18 battery from the main controller 152. The result is prevented passage of leakage current for too long a time between controllers 18 power supply and the main controller 152, thus preventing excessive discharge of low-voltage battery source 10 power. Switches 154a and 156b electrically connected between the main controller 152 and the appropriate controllers 18 the battery with the corresponding wires 154, 156, which can be carried leakage current.

It should be understood that the location of the switch(switch) according to the present invention is not limited to the location shown in this embodiment, the invention. For example, if there are a lot of wires, which can be carried leakage current between the main controller 152 and single controller 18 battery switch(switches) can be located in one or some, but not all, of conductive lines. In another alternative variant of the invention, in which many battery packs connected with the main controller, switch(switches) can be located between the main controller 152 and only one or some of battery packs (for example, only the first battery pack # 1 or second battery pack, № 2).

As described above, when the state of charge of the 16 elements detected as reduced below the specified limit, the controller 18 battery gives a signal of autohostname to terminal 26 autohostname, which are electrically connected to terminal 136 autohostname. Signal autohostname issued by the controller 18 battery comes in the main controller 152 through the conductive line 156. The main controller 152 receives the signal of autohostname from the controller 18 battery and gives a signal of autohostname to transistor 192 regulation of gate voltage. In this case, the signal autohostname issued by the main controller 152, carried to the gate of the transistor 192 regulation of gate voltage across the circuit 144 I / o signal autohostname. As a result, the transistor 192 voltage regulation shutter is activated (i.e., becomes conductive), a powerful field transistors 194 off, and current supply to the motor 176 stops. This prevents excessive discharge of low-voltage battery source 10 power.

In addition, when the main controller 152 receives the signal of autohostname from the controller 18 battery, the indicator (led circuit indication) 160, preferably, lit. In this case the main controller 152 selectively includes only indicator 160, appropriate low-voltage source 10 power, which gave the signal autohostname. The result is that the user can immediately determine which low-voltage battery source 10 power requires charging.

As described here above, high-voltage electric tool 100 has two interfaces 130 battery configured for removable installation of appropriate low-voltage battery source 10 power supply, and can simultaneously use two low-voltage battery source 10 power as an energy source. Two low-voltage battery source 10 power supply are connected in series with the motor 176 and serves voltage 36 volts to the motor 176. Thus, high-voltage electric tool 100 with a rated voltage of 36 volt is powered by two low-voltage battery source 10 power, each of which has a nominal voltage of 18 volts. The user can operate the high voltage electric tool 100 using already available low-voltage battery source 10 power without the need to buy high-voltage battery pack 30 power supply and charger for it. Each low-voltage source 10 power can also be used individually as its own power supply to low-voltage electric tool 50. Thus, the user can effectively use available low-voltage battery source 10 power supply and charger for them.

In Fig. 6 shows an example in which the electric circuit high voltage electric tool 100 modified. In this modified example, the diagram shown in Fig. 5 added two schemes 158 bypass. One scheme 158 bypass applied for each respective low-voltage battery source 10 power supply, connected with the main controller 152. Each scheme 158 bypass connects the input terminal 134a positive electrode with input terminal 134b negative electrode for one battery source 10 power through the diode 158a. Thus, the scheme 158 bypass output terminal connects 24a positive electrode with output terminal 24b negative electrode each low-voltage battery source 10 power through the diode 158a. In this embodiment, the invention of one scheme 158 bypass applied to each of the battery source 10 power supply, connected with the main controller 152. It should be noted that the location of the schema(schema) crawl under the present invention is not limited to the above option execution. For example, the scheme crawling can be located between some of battery packs (for example, only the first battery pack # 1 or second battery pack, № 2).

Anode diode 158a connected to the input terminal 134b negative electrode and the cathode (diode 158a connected to the output terminal 134a positive electrode. Thus, the electric current is not normally flows in the diode 158a, and output terminal 24a positive electrode and output terminal 24b negative electrode low-voltage battery source 10 power supply electrically disconnected. However, when the low-battery source 10 power becomes excessively discharged and on the output terminals 24a, 24b low-voltage battery source 10 power is generated reverse voltage, electric current flows through the diode 158a. Thus, the output terminals 24a, 24b battery source 10 power become electrically connected via the scheme 158 bypass. As a result, even if only one low-voltage battery source 10 power becomes excessively discharged, any damage to the low-voltage battery source 10 power can be minimized or even prevented. If necessary in the scheme 158 bypass can also be applied fuse 158b. In this case, if the schema 158 bypass occurs in a strong electric current scheme 158 bypass will be physically disconnected fuse 158b, which melts or otherwise terminates the connection due to excessive current. In the result of any damage to low-voltage battery source 10 power can be minimized or prevented, for example, even when the diode 158a is Zener breakdown. Preferably fuse 158b available to the user, and thus, it can be replaced in case it breaks.

In Fig. 7 shows another modified circuit diagram example the high-voltage electric tool 100. In this modified example, the position of the insertion of the power supply for the main controller 152 in the circuit shown in Fig. 5, changed. As shown in Fig. 7, the main switch 178 placed between a low voltage battery source 10 power supply and circuit 142 power source. Thus, when the main switch 178 switched off, the electric current to the host controller 152 simultaneously disabled. The result can be prevented unnecessary power consumption main controller 152 inactive high-voltage electric tool 100.

In Fig. 8 shows another modified circuit diagram example the high-voltage electric tool 100. In this modified example, the diagram shown in Fig. 7 added two schemes 158 bypass. Structure, function and effect diagrams 158 bypass similar to those described with references to a variant of the invention, shown in Fig. 6.

As shown in Fig. 10, block 202 side of the main building has an external circuit, which generally corresponds to the external contour of the high-voltage battery source 30 power. Connector (GUI) 220 is located in the block 202 side of the main building of similarly high-voltage battery source 30 power. The connector can 220 sliding be inserted into the interface 80 battery pack, located on a main building and 72 high-voltage electric tool 70. Connector 220 includes a pair of guides 222, output terminal positive electrode 224a, output terminal of the negative electrode 224b and terminal 226 autohostname. When the unit 202 side of the main body attached to the interface 80 battery output terminal 224a positive electrode unit 202 side of the main building is connected to the input terminal 84a positive electrode interface 80 battery, and output terminal 224b negative electrode unit 202 side of the main building is connected to the input terminal 84b negative electrode interface 80 battery. In addition, terminal 226 autohostname connects to the terminal 86 I / o (autohostname) controller power supply. As a result, the unit 202 side of the main building of electrically connected with the internal wiring diagram of the main building of 72 high-voltage electric tool 70. In addition, the unit 202 side of the main building has a latch 212, which is linked with the notch 88 to engage the latch (see Fig. 22) interface 80 battery and configured for removable attachment unit 202 side of the main building to the interface 80 battery. It engages the notch 88 to receive the tabs with the tab 212 can be released button 214 release latch.

As shown in Fig. 11, block 206 side of the battery pack includes two interfaces 230 battery. Each interface 230 battery can undocking to accept or attach one low-voltage battery source 10 power and low-voltage battery source 10 to the power supply with slip inserted into it. Interface 230 battery has a couple of guides 232, input terminal 234a positive electrode, the input terminal 234b negative electrode terminal 236 I / o (autohostname) controller the power supply and the notch 238 to receive latch. Regarding the design, interface 230 battery is essentially identical to the interface 60 battery low-voltage electric tool 50 described above regarding Fig. 17 and 18, and its description is included here as a reference material. Two interfaces 230 power source located close to the bottom of the unit 206 side of the battery, low-battery source 10 power, respectively, inserted them in the same direction. Two low-voltage battery source 10 power attached to the unit 206 side of the battery power source, connected in series with the output terminal 224a positive electrode and output terminal 224b negative electrode connector 220. As a result, two low-voltage battery source 10 meals served the current internal wiring diagram of the main building of 72 high-voltage electric tool 70 with a voltage of approximately 36 volts. Adapter 200 ensures the connection of the tool of 70, with the interface 80 battery allocated to the high-voltage battery source 30 power supply for connection to low voltage battery source 10 power supply and actuation. In addition, terminal 26 autohostname a battery source 10 power supply is connected to the terminal 236 autohostname unit 206 side of the battery pack.

These two indicators 260, preferably situated near on the same surface of the unit 206 side of the battery pack and have the same or essentially the same direction display (that is, the same or essentially the same direction led light). Thus, the user can see these two indicators 260 simultaneously and can determine the state of charge of two low-voltage battery source 10 power. In addition, indicators 260, preferably, are higher than the corresponding interface 230 and batteries. Thus, for example, if a high-voltage electric tool 70 abruptly stops working, the user can immediately determine which low-voltage battery source 10 power supply has a problem or is in an abnormal state. These two indicators 260 can also be placed on, for example, block 202 side of the main body, and not on the block 206 side of the battery pack. These two indicators 260 can also be located in other places that can be simultaneously observed by the user. Preferably, these two indicators 260 are located in one plane, so that the user could simultaneously see these two indicators 260 from various directions.

Like indicator 160, indicator 260 can also be located in each of the low-voltage battery source 10 power. As described above, two interfaces 230 batteries are located nearby and can accept low-voltage battery source 10 power supply in the same direction. Thus, when two low-voltage battery source 10 power attached to the unit 206 side of the battery pack, these two indicators 260 placed in the same plane and direction of their glow is also the same. Thus, the user can see these two indicators 260 from various directions.

Approximate electric circuit adapter 200 will be described below with reference to Fig. 12. As will be readily understood when comparing Fig. 12 Fig. 5, chain adapter 200 essentially identical parts chain, located in the main building 102 described above for high-voltage electric tool 100. More specifically, the combination of the chain of the main building of 72 high-voltage electric tool and 70 chain adapter 200 shown in Fig. 12, is essentially identical to the chain of the main building of 102 high-voltage electric tool 100, shown in Fig. 5 (but powerful field transistors 246 missing in Fig. 5).

You will first described the chain of the main building of 72 high-voltage electric tool 70 shown in Fig. 12. The main body of 72 high-voltage electric tool 70 is equipped with a motor 76, main switch 78 scheme 90 speed control, powerful field-effect transistor 94 92 transistor voltage regulation bolt and chain 96 division voltage. The configuration of these components can be identical to the configuration of the motor 176, main switch 178, schemes 190 speed control, powerful MOSFET 194, transistor 192 regulation of gate voltage and schemes 196 dividing the voltage of the main building of 102 high-voltage electric tool 100 described above with reference to Fig. 5-8, and thus there is no need to describe them here. Two low-voltage battery source 10 power, thus, are connected in series with the motor 76 via adapter 200.

Adapter 200 is equipped by the master 252 scheme 242 source of power, of a shunt resistor 250 scheme 248 detection current scheme 244 I / o signal autohostname and fuse 262. The main controller 252 electrically connected with two indicators 260. The configuration of these components can be identical to the master controller 152, the scheme 142 source of power, of a shunt resistor 150, the scheme 148 detection current scheme 144 I / o signal autohostname, the indicator 160 and cause the fuse to 162 in the main building 102 high-voltage electric tool of 100 and, thus, also there is no need to describe them here.

Adapter 200 powered field-effect transistor 246 between the input terminal of the negative electrode 234b connected to low-voltage battery source 10 power supply and output terminal of the negative electrode 224b, connected with high-voltage electric tool 70. Thus, the two low-voltage battery source 10 supply is electrically connected to the motor 76, and the discharge current, issued two connected consistently low voltage battery-10 sources of power takes place in this chain. The main controller 252 connected with the shutter powerful MOSFET 246 and can control a powerful field-effect transistor 246. For example, the main controller 252 can disable powerful field transistors 246 when the output voltage of the circuit 248 detection current exceeds a specified amount.

Below we will describe the features powerful MOSFET 246. When the adapter 200 separate from high-voltage electric tool 70 connector, 220 adapter 200 opened. When two low-voltage battery source 10 power supply is attached to the adapter 200 in this state, on the output terminal 224a positive electrode and output terminal 224b negative electrode in connector 220 voltage is generated approximately 36 volts. Output terminal 224a positive electrode and output terminal 224b negative electrodes are placed in the slot of the adapter 200, as shown in Fig. 10. Thus, unwanted objects in General can not get in contact with two output terminals 224a, 224b. However, the possibility of entering into contact unwanted objects with two output terminals 224a, 224b cannot be completely excluded. For example, if two output terminals 224a, 224b closed short unwanted object, can generate very large electric current in low-voltage source(s) 10 power supply or adapter 200. In the diagram, corresponding to the present variant of the invention, in the adapter 200 is a powerful field transistors 246 so that after the adapter 200 removed from the high-voltage electric tool 70, if there is a very high current, the chain can be broken, and, thus, the electric current can be disabled powerful field-effect transistor 246.

The main controller 252 electrically connected to the terminal 236 autohostname interface 230 battery, and can be input voltage (for example, signal autohostname) from the controller 18 power supply and can produce a voltage signal (such as alarm cancel discharge protection) in the controller 18 battery. Switches 254a, 256a are located, respectively, in the conductive line 254, which holds the voltage of the signal from the host controller 252 to the controller 18 batteries, and in the conducting line 256, which holds the voltage of the signal from the controller 18 battery to the main controller 252. In addition, in conductive lines 254, 256 are also tools 254b, 256b offset voltage level, respectively, for the regulation of output voltage signals from the controller 18 battery low battery source 10 power, which is located on the high voltage side, as mentioned above regarding the approximate schemes 154b, 156b level shifting, shown in Fig. 5-8. Thus, circuit breakers 154a, 156a and means 154b, 156b offset voltage level above the relatively high voltage electric tool 100, can be used without changes in the present variant of the invention, and thus there is no need to describe them here.

As described above when using the adapter 200 high-voltage electric tool 70 (which is fit for normal attach only one battery pack in the interface 80 battery) can operate in two low-voltage battery source 10 power. Connecting two low-voltage battery source 10 power series with the motor 76, you can supply approximately 36 volts to the motor 76. In the high-voltage electric tool 70 with a rated voltage of 36 volts can operate in two low-voltage battery source 10 power, each of which has a nominal voltage of 18 volts. Thus, high-voltage electric tool 70 can work with the use of already available low-voltage battery source 10 power without the need to purchase high-voltage battery source, 30 power, which issues rated voltage 36 V, or the charger for it. Each low-voltage battery source 10 power can also be used individually as its own power supply to low-voltage electric tool 50, which operates from battery pack on 18 volts.

In Fig. 13 shows the modified circuit diagram example adapter 200. In this modified example, the two schemes 258 crawl added to the scheme shown in Fig. 12. One scheme 258 crawl applied for each respective low-voltage battery source 10 power. The scheme 258 crawl includes diode 258a and fuse 258b. These schemes 258 bypass can be identical schemes 158 bypass high-voltage electric tool 100 described above regarding Fig. 6 and 8, and thus there is no need to describe them here.

As shown in Fig. 15 connector, 220 can be located in or on the top surface or upper part 301 adapter 300 same connector 220 cord adapter 200 shown in Fig. 10. Thus, the connector can 220 sliding be inserted into the interface 80 battery, located on a main building and 72 high-voltage electric tool 70. Connector 220 includes a pair of guides 222, output terminal positive electrode 224a, output terminal 224b negative electrode to terminal 226 autohostname. The design of connectors 220 in two types of adapters 200, 300 can be essentially identical. Thus, when the connector 220 adapter 300 attached to the interface 80 battery output terminal 224a positive electrode adapter 300 is electrically connected to the input terminal 84a positive electrode interface 80 battery, and output terminal 224b negative electrode adapter 300 is electrically connected to the input terminal 84b negative electrode interface 80 battery. As a result, the adapter 300 is electrically connected to the electric circuit, contained in the main body of 72 high-voltage electric tool 70. In addition, terminal 86 autohostname connects to the terminal 226 autohostname.

As shown in Fig. 16, two interfaces 230 batteries are located on the bottom surface or the bottom of 302 adapter 300 is similar to the interface 230 battery cord adapter 200 shown in Fig. 11. Each interface 230 battery can undocking to accept or attach one low-voltage battery source 10 power and low-voltage battery source 10 to the power supply with slip inserted into it. Interface 230 battery has a couple of guides 232, input terminal 234a positive electrode, the input terminal 234b negative electrode and the notch 238 to receive latch. Design interfaces 230 battery two types of adapters 200, 300 can be essentially identical. Two interfaces 230 batteries are next on the bottom of the unit 206 side of the battery, low-battery source 10 power, respectively, inserted them in the same direction. Two low-voltage battery source 10 power attached to the adapter 300, connected in series with the output terminal 224a positive electrode and output terminal 224b negative electrode connector 220. As a result, two low-voltage battery source 10 meals served the current in an electric circuit, contained in the main body of 72 high-voltage electric tool 70, with a voltage of approximately 36 volts. In addition, terminal 26 autohostname a battery source 10 power supply is connected to the terminal 236 autohostname adapter 300.

As shown in Fig. 15, the adapter 300 is also equipped with two indicators 260. These two indicators 260 are located on the rear surface 300a adapter 300. These two indicators 260, respectively, are located on two interfaces 230 battery. Each indicator 260 contains, for example, led or another light source, such as an incandescent lamp, or display device such as an LCD display as described above with reference to the indicator 260 cord adapter 200, and the indicator 160 in the variant of the invention, shown in Fig. 2-4, the description of which is newly incorporated here by reference. Thus, like the above variants of the invention, the indicator 260 may indicate the charging status of the low-voltage battery source 10 power attached to a single interface 230 battery, and another indicator 260 can specify the same or another state low voltage battery source 10 power, attached to a different interface 230 power source. These two indicators 260, preferably, are next on the back surface 300a adapter 300. Thus, the user can see these two indicators 260 simultaneously and can determine the appropriate charging status or another specified state(condition) of the two low-voltage battery source 10 power. In addition, indicators 260, preferably, are higher than the corresponding interfaces 230 battery. Thus, for example, if a high-voltage electric tool 70 abruptly stops working, the user can immediately determine which low-voltage battery source 10 power has problems or does not work properly.

In this description of a good example of low-voltage electric tool is 50 electric drill, and representative example of a high-voltage electric tools 70, 100 is electric blower (blower to remove the leaves). However, this invention is not restricted to these specific types of electric tools and can be widely applied to many types of electric tools, as described above under "summary of the invention".

The above specific embodiments of the present invention, but these variants the invention, just let me explain some revealing the possibilities for use of the present invention or limit the claims. The subject matter stated in the formula of the invention, includes changes and modifications concrete examples described above.

The technical elements, is shown in the description or drawings can be used separately or in different combinations, which obviously is not described here, but will be obvious to a person skilled in the art. In addition, described here, the subject of the invention can be used for simultaneous serving many purposes or only one purpose, which could not be explicitly specified in this description.

Although the present invention has been described about the preferred use of lithium-ion cells, the present invention, of course, apply to any type of chemical composition battery or technology, including, but not limited to: cadmium-Nickel, hybrid Nickel, Nickel-zinc, lithium-zhelezopatna etc.

In addition, although indicative electric tool and 100 adapters 200, 300 were shown as providing a serial connection between two battery source 10 power interface 80 battery tool 100 or adapters 200, 300, of course, can be modified to connect three or more battery source 10 power series and/or parallel. In addition, you do not want all of the first battery source 10 power had the same rated voltage, and in some versions of the implementation of the present invention is one of the first battery source 10 power may have first rated voltage, for example, 12 volts, and one of the first battery source 10 supply may have a secondary rated voltage, for example 18 volts, i.e. first and second nominal voltage of these two battery source 10 food are different. In this case, it is preferable that the interfaces 130, 230, the first battery was configured differently to ensure that it can be attached only proper battery pack. Additionally or alternatively, the main controller 152 of the tool of 70, 100, or the main controller 252 adapter 200, 300 and its auxiliary electric circuits can be configured for proper recognition battery packs with different nominal voltage, and operating signals issued by the relevant Central processors battery packs.

Adapters 200, 300 can be modified to ensure only perform the function of the shear stress level, and the function of the motor control tool can be integrated circuit, such as the microprocessor, located in the main building 72, 100 instrument 70, 100. For example, adapters 200, 300 may not contain the main controller 252, and instead may include, for example, only means 254b, 256b offset voltage level and/or switches 254a, 256a. Naturally, adapters 200, 300 can also include diode(diodes) 258a, fuse(fuse) 258b and indicators 260. In such scenarios, the invention, the functions of the main controller 252 run electric scheme, located in the main building 72, 100 instrument 70, 100. In this case, means 254b, 256b offset voltage level, preferably, give proper regulated voltage signals from controllers 18 battery packs to the processor, located in the main building 72, 102.

Additional options for the implementation of the present invention includes, but is not limited to, the following:

1. Electric tool, containing:

the main body holding the instrument;

the electric motor located in the main building and adapted for operating the instrument;

multiple interfaces first battery power, each of which is adapted for removable install one of the first battery pack and electric connections of many attached the first battery power supplies in series with the motor; and

a lot of indicators, each of which is adjusted to point to at least one state, corresponding to the first battery pack attached to the main body in which the indicators are arranged so that they are visible at least in one direction.

3. Electric tool, as in option 1 or 2 of the invention, in which each of a variety of indicators indicates decreased if the state of charge of the relevant first battery pack below the set limit, thus indicating that the corresponding first, the battery needs charging.

4. Electric tool, as in the options 1-3 of the invention, in which each of a variety of indicators indicates at least two levels of state of charge of the relevant first battery pack.

5. Electric tool, as in the options 1-4 of the invention, in which each of the many first battery packs can individually be used as its own power source other power tool.

6. Electric tool, as in versions 1-5 of the invention, in which each of the many first battery packs contains the latch fit for coupling with the appropriate design engagement formed on or about the respective interface is the first battery.

7. Electric tool, as in the options 1-6 of the invention, in which each of the many first battery packs designed for coupling with slip with the appropriate interface battery.

8. Electric tool, as in the options 1-7 of the invention, in which multiple interfaces first battery adapted to the respective taking multiple first battery packs in the same direction.

9. Electric tool, as in the options 1-8 of the invention, in which multiple interfaces battery as a whole is formed on the main body.

10. Electric tool, as in the options 1-9 of the invention, in which:

the interfaces of the first battery is located on removable transitional device

the main housing contains the interface on the second battery, fitted for the reception of the second battery, which has a structure of coupling, other than the first battery pack, and electrically connects the attached second battery pack supply with electric motor,

the adapter contains a connector specially designed for removable attached to the interface on the second battery, and

many of the first battery packs attached to multiple interfaces first battery, electrically connected to the adapter connector.

11. Electric tool, as in version 10 of the invention, in which the adapter contains the block side of the battery pack with multiple interfaces first battery, the power side of the main body with the connector, and the cable that connects the power side of the battery pack with the main body.

12. Electric tool, as in versions 10 and 11 of the invention, in which the second, the battery has a nominal voltage, which essentially is the sum of nominal voltages of many first battery packs.

13. Electric tool, as in the options 10-12 of the invention, in which each interface of the first battery is fitted to prevent the attachment of the second battery pack, and the interface on the second battery is fitted to prevent the attachment of the first battery pack.

14. Electric tool in the options, 1-13 of the invention, in which each of the first, the battery has a nominal voltage, which is essentially equal to or greater than 7 volts but less than 14 volts, and the motor has a nominal voltage, which is essentially equal to or greater than 14 volts.

15. Electric tool in the options, 1-14 of the invention, in which each of the first, the battery has a nominal voltage, which is essentially equal to or greater than 18 volts but less than 36 volts, and the motor has a nominal voltage, which is essentially equal to or greater than 36 volts.

16. Electric tool, as in the options 1-15 of the invention, in which each of the first, the battery has a nominal voltage, which is essentially equal to 18 volts, and the motor has a nominal voltage, which is essentially equal to 36 volts.

17. Electric tool, as in the options 1-16 of the invention, in which each of the many first battery packs contains many lithium-ion cells in series.

18. Electric tool, as in the options 1-17 of the invention, in which each of the many first battery packs contains at least five lithium-ion cells in series.

19. Electric tool, containing:

the main body holding the instrument;

the electric motor located in the main building and adapted for operating the instrument; and

multiple interfaces first battery, each of which is adapted for removable installation proper of the first battery pack and electric connections of many attached the first battery power supplies in series with the motor, in which each of the first, the battery has a nominal voltage, which is essentially equal to or greater than 18 volts but less than 36 volts, and the motor has a nominal voltage, which is essentially equal to or greater than 36 volts.

20. Electric tool, as in option 19 of the invention, in which each of the many first battery packs contains at least five lithium-ion cells in series.

21. Electric tool, as in the version of 20 implementation of the invention, in which each of the many first battery packs contains ten lithium-ion cells, in which five pairs of lithium-ion cells are connected in parallel, and five pairs connected in parallel Li-ion cells are connected in series.

22. Electric tool, as in the options 19-21 of the invention, in which first the battery pack can be used individually as its own power source other power tool.

23. Electric tool, as in the options 19-22 of the invention, in which multiple interfaces first battery formed as a unified whole on the main body.

24. Electric tool, as in the options 19-23 of the invention, in which:

interfaces the first battery is located on removable adapter

the main housing contains the second interface the batteries fit for reception of the second battery pack and electric connections attached a second battery pack with an electric motor, and

the adapter contains a connector specially designed for removable attached to the interface on the second battery, and

many of the first battery packs attached to multiple interfaces first battery, electrically connected inside of the card connector.

25. Electric tool, as in the version 24 of the invention, in which the adapter contains the block side of the battery pack with multiple interfaces first battery, the power side of the main body with the connector, and the cable that connects the power side of the battery pack with a power sides of the main body.

26. Electric tool, as in the variants 24 or 25 of the invention, in which the second, the battery has a nominal voltage, which essentially is the sum of nominal voltages of many first battery packs.

27. Electric tool, as in the options 24-26 of the invention, in which each interface of the first battery is fitted to prevent the attachment of the second battery pack, and the interface on the second battery is fitted to prevent the attachment of the first battery pack.

28. Electric tool, as in the options 19-27 of the invention, in which the tool consists of a fan and electric tool is a blower.

29. Adapter for connection of many first battery packs with the main building electric tool, in which the main building electric tool contains the interface on the second battery, adapted for removable attachment second battery pack and electric connections of the second battery pack with an electric motor located in the main building, with the adapter provides:

multiple interfaces first battery adapted for removable attachment of many first battery packs, while the interfaces of the first battery different from the interface of a second battery; and

the connector are fitted for removable attached to the interface on the second battery, which many interfaces first battery adapted for electrical connection multiple attached the first battery power supplies in series with the connector.

30. Adapter, as in option 29 of the invention, in which the adapter contains the block side of the battery pack with multiple interfaces first battery, the power side of the main body with the connector, and the cable that connects the power side of the battery pack with the host side of the main body.

31. The adapter as options 29 or 30 of the invention, additionally contains many visual indicators located on the surface of the adapter, so that they have the same or essentially the same direction glow, with visual indicators adapted to provide a visual indication to the corresponding battery status the first battery packs attached to the interfaces of the first battery pack.

32. Interface battery pack for electric tool, containing:

33. Interface battery pack, as in option 32 of the invention, additionally contains:

the first visual display, adapted to reflect the status of the battery pack attached to the interface of the first battery pack, and

second visual display, adapted to reflect the status of the battery pack attached to the interface of the second battery pack,

where the controller is also for the activation of the first visual indicator in the reception autohostname from the input terminals of the controller battery interface of the first battery pack and activate the second visual indicator in the reception of autohostname from the input terminals of the controller battery interface of the second battery pack.

34. Interface battery pack, as in option 33 of the invention, in which the first and second visual indicators are located on the flat surface.

35. Interface battery pack, as in the options 32-34 of the invention, in which the negative terminal interface of the first battery pack connected in series with the positive terminal interface of the second battery pack.

1. Electric tool, containing: building tools, electrical load inside mentioned tool body; interface power source for electric mentioned instrument containing: the interface of the first battery pack specially designed for removable snap first the battery pack and contains the input terminal of the positive electrode of the first battery and the input terminal of the negative electrode first battery, the interface of the second battery pack specially designed for removable attachment second battery pack and contains the input terminal of the positive electrode of a second battery and the input terminal of the negative electrode second battery, and the input terminal of the negative electrode first battery electrically connected in series with the input terminal is the positive electrode second battery, with input terminal the positive electrode first battery is electrically connected to the input terminal of the negative electrode second battery through referred to the electrical load, the first visual display, adapted for visual alarm when the first battery pack is in an abnormal or discharged, and the second visual display, adapted for visual alarm when the second battery pack is in an abnormal or discharged, while the first and second visual indicators have the same or essentially the same the direction of illumination, while the interfaces of the first and second battery packs and the first and second visual indicators are located on the surface of the above mentioned body of the instrument, and the input terminal is the positive electrode first battery and input terminal of the negative electrode second battery selectively electrically connected with the mentioned electrical load.

2. Electric tool of claim 1, wherein each of visual indicators is intended to specify at least the state of charge of the corresponding battery pack, preferably at least two levels of state of charge of the corresponding battery pack.

3. Electric tool of claim 1, wherein each of visual indicators is intended to indicate decreased if the state of charge of the corresponding battery pack below a pre-specified limit, preferably, threshold voltage, thereby indicating that the corresponding battery pack needs to be charged.

4. Electric tool of claim 1, wherein the first and second visual indicators are located next to the shared flat surface, preferably on a shared flat surface, which is located so that it is visible to the user while working mentioned electric tool.

5. Electric tool of claim 1, wherein the first and second visual indicators include one or more of incandescent lamps, one or more LEDs and/or one or more LCD displays.

6. Electric tool of claim 1, wherein each of the interfaces battery designed to connect with slip with one battery pack.

7. Electric tool of claim 1, wherein each of battery packs contains many lithium-ion cells connected in series, more preferably at least five lithium-ion cells in series.

8. Electric tool of claim 1, wherein the electrical load is rated voltage (for example, 14 or 36 volts), which at least essentially twice the nominal voltage (for example, 7 or 18 volts respectively the first and second battery pack.

9. Electric tool of claim 1, wherein interface power source further comprises: first diode, with the electrode is electrically connected to the input terminal is the positive electrode battery interface of the first battery pack, and a cathode, electrically connected to the input terminal of the negative electrode battery interface of the first battery pack, and the first diode has the property that it is conducting, when a reverse voltage is generated between the input terminals of the positive and negative electrodes of the battery interface of the first battery pack, and the second diode, with the electrode is electrically connected to the input terminal is the positive electrode battery interface of the second battery pack, and a cathode, electrically connected to the input terminal of the negative electrode battery interface of the second battery pack, and the second diode has the property that it is conducting, when a reverse voltage is generated between the input terminals of the positive and negative electrodes of the battery at the interface of the second battery pack.

10. Electric tool of claim 1, wherein interface power supply also contains a fuse, electrically connected between the input terminal of the negative electrode battery interface first battery power supply and the input terminal is the positive electrode battery interface of the second battery pack.

11. A power adapter with cord for electric tool, and the adapter contains case with the first part and the second part, the first part contains the interface of the first battery pack specially designed for removable attach the first battery pack and contains the input terminal of the positive electrode of the first battery and the input terminal of the negative electrode first battery, the interface of the second battery pack specially designed for removable attachment second battery pack and contains the input terminal of the positive electrode of a second battery and the input terminal of the negative electrode second battery, and the input terminal of the negative electrode first battery electrically connected in series with the input terminal is the positive electrode second battery, if this input terminal positive electrode first battery is electrically connected to the input terminal of the negative electrode second battery through referred to the electrical load, the first visual display, adapted for visual alarm when the first battery pack is in an abnormal or discharged, and the second visual display, adapted for visual alarm when the second battery pack is in an abnormal or discharged, while the first and second visual indicators have the same or substantially the same direction of illumination, while the interfaces of the first and second battery packs and the first and second visual indicators are located on the surface of the first part of the mentioned body, and the second part contains the interface electric tool, located on its surface, these interface electric tool is adapted for removable attachment to the interface battery pack referred electric tool and contains: output terminal positive electrode battery, electrically connected to the input terminal positive electrode first battery, and output terminal of the negative electrode battery, electrically connected to the input terminal of the negative electrode second battery.

12. The power adapter on paragraph 11, in which the interfaces of the first and second battery packs physically configured differently from the interface of the electric tool.

13. The power adapter on paragraph 11, in which the interface and the first and second battery packs have the first set of parallel rails that are adapted for the reception sliding the battery pack, and the interface of the tool has a second set of parallel rails that are fitted to connect with slip interface with the battery pack referred electric tool, the distance between parallel rails of the first set is different from the distance between parallel rails in the second set.

14. The power adapter on paragraph 11, in which the first part of the body physically and electrically connected with the second part of the body flexible electric cord.

15. The power adapter on item 11, additionally contains the mounting device, located at the above-mentioned first part, and the mounting device is adapted to attach to a piece of clothing worn by the user and/or to the part of the user's body.

16. The power adapter on paragraph 11, in which the first and second battery packs have the specified nominal voltage, and interfaces of the first and second battery packs are adapted to prevent attach the battery pack with rated voltage, is different than the specified nominal voltage of the first and second battery pack.

17. The power adapter on paragraph 11, in which the instrument has a load with rated voltage (for example, 14 or 36 volts), which essentially twice the nominal voltage (for example, 7 or 18 volts respectively) battery packs connected to interfaces of the first and second battery.

18. The power adapter on item 11, additionally contain: the first diode, with the electrode is electrically connected to the input terminal is the positive electrode battery interface of the first battery pack, and a cathode, electrically connected to the input terminal the negative electrode battery interface of the first battery pack, and the first diode has the property that it becomes conductive when connected between the input terminals of the positive and negative electrodes of the battery at the interface of the first battery pack is generated reverse voltage, and the second diode, with the electrode is electrically connected to the input terminal is the positive electrode battery interface of the second battery pack, and a cathode, electrically connected to the input terminal of the negative electrode battery interface of the second battery source power, and the second diode has the property that it becomes conductive when connected between the input terminals of the positive and negative electrodes of the battery at the interface of the second battery pack is generated reverse voltage.

19. The power adapter on item 11, additionally contains a fuse, electrically connected between the input terminal of the negative electrode battery interface first battery power supply and the input terminal is the positive electrode battery interface of the second battery pack.

20. The power adapter on item 11, additionally contains the mounting device, located on the first part, and the mounting device is adapted to attach to a piece of clothing worn by the user and/or to the part of the user's body.