Portable radio stations power supply device
FIELD: electrical engineering.
SUBSTANCE: invention relates to electrical engineering and can be used as reliable DC power supply device of portable radio stations, vehicles, etc. Technical result is aimed at improvement of power supply systems storage batteries charge capacity. Technical result is achieved due to, that power supply device, containing storage batteries, electronic switches, connecting batteries with load, additionally comprises time relay, connected to electronic switches control inputs, logic element "AND", connected to time relay control input, voltage relays, connected to storage batteries outputs and with logical element "AND" inputs. When using storage batteries with smaller current take-off and at intermittent current take-off storage batteries charge capacity has larger value, than at high and continuous loads. Time relay in portable radio stations power supply device circuit performs storage batteries switching, increasing discharge time of each storage battery of device, which allows to increase service life of storage batteries by 10 % and thereby prolonging portable radio station continuous operation duration.
EFFECT: proposed device has low power consumption.
1 cl, 1 dwg
SUBSTANCE: invention relates to electrical engineering, namely, to power supply systems (PSS) of geostationary spacecrafts (SC), using solar batteries (SB) as primary sources of energy, and energy accumulators are accumulating batteries (AB). The method is proposed to control an autonomous system of geostationary spacecraft power supply, comprising a solar battery and "n" accumulating batteries, a voltage stabiliser, connected between the solar battery and the load, and "n" charging and discharging devices, which consists in monitoring the extent of charge (discharge) of accumulating batteries, control of charging and discharging devices depending on inlet and outlet voltage of the power supply system and level of charge of accumulating batteries, prohibition for operation of the appropriate charging device, when the limit level of charge is achieved by this accumulator battery, removal of this prohibition with reduction of the level of charge to a certain value, prohibition for operation of the appropriate discharging device, when the minimum level of charge is achieved by this accumulator battery, removal of this prohibition, when a certain level of charge of this accumulating battery is achieved, at the same time the spacecraft includes an on-board computer to control condition and manage operation of the spacecraft and a command-metering radio line.
EFFECT: increased efficiency of using accumulator batteries as a geostationary SC passes through "shadow" sections of the orbit.
2 cl, 1 dwg
SUBSTANCE: electric device includes the main body designed to be connected to a battery pack. Connecting piece for connection of a battery pack is made at the main body of electric device. The plate supporting terminals (30) has at least one pair of battery pack terminals to connect terminals of the battery pack and this pair of terminals is fixed at the connecting piece. Terminals are located at the front surface of the plate supporting terminals; the plate is open from the side of connecting piece. Electrical element (51, 53) is located at the rare surface of the plate supporting terminals.
EFFECT: eliminating effect of a magnetic field induced by the motor on the electric element.
12 cl, 5 dwg
SUBSTANCE: invention relates to power supply systems (PSS) of spacecrafts (SC). According to the invention, the method for control of an autonomous SC PSS comprising a solar battery (SB) and "N" accumulator batteries, every of which comprises "n" serially joined accumulators, where "N">1, a voltage stabiliser connected between the SB and the load and "N" charging devices (CD) and discharge devices (DD), consisting in control of the voltage stabiliser and CD and DD depending on input and output PSS voltage, extent of charge and discharge of the AB, prohibition for operation of the appropriate CD in achievement of the limit level of such AB charge, removal of this prohibition whenever a certain level of such AB discharge is achieved, prohibition for operation of the appropriate DD whenever the limit value of such AB discharge is achieved, removal of this prohibition whenever a certain level of such AB charge is achieved, prohibition for operation of all DD, when capacities of DD that remained in operation are not sufficient for load supply. In process of discharge the level of AB charge is monitored by voltage, or voltage of each AB accumulators.
EFFECT: increased reliability of PSS by prevention of a failure of lithium-ion AB accumulators.
2 cl, 2 dwg
SUBSTANCE: method to control an autonomous system of spacecraft power supply comprising a solar battery connected to a load via a voltage stabiliser of a series or short-circuited type, besides, the load in its composition comprises a session and a duty components, including a system of orientation with control gyroscopic devices and an on-board computer, "n" accumulator batteries connected by unipolar buses with a common bus, the solar battery and the load, and by buses of opposite polarity - with according "n" charging and "n" discharging devices, having feedbacks on the load voltage, consisting in stabilisation of the output voltage of the autonomous power supply system, through control of the voltage stabiliser and charging-discharging devices depending on inlet and outlet voltage of the power supply system. Control of operation of controlling gyroscopic devices is realised based on the condition of non-exceeding their capacity of recuperation Prec of the current load power Pl:Prec<pl.
EFFECT: improved quality of output voltage.
3 cl, 1 dwg
SUBSTANCE: device for diagnostics of the vehicle accumulator battery diagnoses statistics of the accumulator battery status and usage and represents a measure preventing deterioration of the accumulator battery characteristics. The device for diagnostics of the vehicle accumulator battery comprises a storage unit for storage of alternative preventive measure for the factor that stipulates deterioration of the accumulator battery characteristics and a diagnosing unit for prohibition of the alternative preventive measure when this measure does not meet a certain criterion of presentation.
EFFECT: extended service life of the accumulator battery.
14 cl, 4 dwg
SUBSTANCE: method enables monitoring of current voltage value equivalence in battery accumulators in real time mode during battery charge and discharge cycles and accumulator voltage balancing. For that purpose, voltage from individual sources using controlled battery voltage as feed voltage is supplied to accumulators. Voltages equal to current mean voltage of battery accumulators is generated at individual source outputs.
EFFECT: extended operation capabilities.
2 cl, 2 dwg
SUBSTANCE: device resistant to replacement by unauthorised battery made at electric vehicle comprises a battery feature identifier and an tool limiting output power of the power source when the above identifier identifies that the replaced battery is not authorised. The tool limiting output power of the power source uses the specific configuration to limit output power of the source that corresponds to reduced capacitance of an auxiliary power source out of configurations of the source output power limitation corresponding to reduction of capacitance of an auxiliary power source.
EFFECT: potential detection of the vehicle failed state.
4 cl, 3 dwg
SUBSTANCE: invention relates to electrical engineering and can be used in devices intended for recharging of a group of storage batteries installed on a transport vehicle. Essence of the invention consists in the fact that a device containing a power supply source, an accumulation tank, a current sensor and electronic switches, with that, when in a recharging mode, a storage battery is connected with one of the electronic switches as to a signal of the current sensor to a pre-charged capacitor from the power supply source, is equipped with two multiplexers of increased capacity and with a group of electronic switches based on field transistors, a group of accumulation tanks, the number of which is equal to the number of storage batteries included in the group; a group of current sensors, a multiplexer of information signals, an analogue-to-digital converter; with that, controlled inputs of two multiplexers, groups of electronic switches based on field transistors and a multiplexer of information signals are connected to the corresponding outputs of the microcontroller, and the group of current sensors through the multiplexer of information signals and the analogue-to-digital converter are connected to the microcontroller input.
EFFECT: providing recharging.
9 cl, 1 dwg
SUBSTANCE: in device implementing the ratio of Q=f(C,U,tcharge,k) and containing the measured chemical current source (CCS), key for circuit closure, capacitor of known capacity, key for reset of the capacitor charge, car charger, voltage divider with division factor k7=0.95, voltage divider with division factor k8=0.5, comparator, divider with controlled division factor, waiting generator (WG) 10, key for switching, counter of number of pulses, delay unit, GTI, digital-to-analogue converter (DAC), operating amplifier, which together with DAC and corresponding feedbacks represents digital-to-analogue voltage divider, key for closure with debouncing circuit, AND block, inverters, register, low-frequency filter and indicator, which are connected respectively. Functionally, the device consists of two units. One unit is connected directly to terminals of the measured CCS and includes key for closure and capacitor of known capacity. The rest elements of device are included in composition of the second unit.
EFFECT: improving reliability of device, reducing measurement error of CCS electric capacity and simplifying device design.
SUBSTANCE: in the method of determining frequency of maintenance of an accumulator battery, involving determining the minimum available electrolyte volume, when putting the accumulator battery into operation the volume of electrolyte of the accumulator battery which exceeds the minimum allowable volume is determined; recharge ampere-hours for breakdown thereof depending on operating conditions are determined and the data are stored in computer memory; recharge ampere-hours are counted and summed during the entire operating period, and upon reaching the maximum value of recharge ampere-hours corresponding to the minimum allowable volume of electrolyte of the accumulator battery, maintenance is carried out.
EFFECT: high reliability and accuracy of determining frequency of maintenance of an accumulator battery and low labour input while optimising said process.
FIELD: electrical engineering.
SUBSTANCE: installed within the accumulator battery with a casing (1) is at least one electric accumulator (3) having two electric outputs (4, 5) and two current conductive lines (8, 9), each of them connected to one of the current outputs (4, 5) of the accumulator (3), the lines lead to the two electric contacts (13, 14). Envisaged in at least one of the two current conductive lines (8, 9) is a protective device (10) positioned outside the accumulator (3), and protecting the accumulator (3) against overheating and/or over-current. The protective device (10) has a reversible effect circuit-breaking element (11), limiting electric current flow after the preset threshold temperature has been reached, and an irreversible effect circuit-breaking element (12) irreversibly interrupting flow of electric current through itself after the preset threshold temperature has been reached or limiting or interrupting flow of electric current through itself after the preset threshold current intensity has been reached. The reversible and irreversible effect circuit-breaking elements (11, 12) are connected in series.
EFFECT: enhanced reliability of protecting the accumulator battery and electric device equipped with such battery against overheating and over-current.
10 cl, 4 dwg
FIELD: electrical engineering.
SUBSTANCE: according to the invention sensor represents metal plate connected through resistor to base of n-p-n transistor which collector is connected though diode to positive output of the accumulator while its emitter is connected to negative output of the accumulator, at that transistor together with light-emitting diode and plate is mounted into the accumulator cover and plate is placed under main electrodes of the accumulator at distance of 5-10mm. At that resistance of the resistor connected between transistor base and metal plate is defined as average value of maximum value obtained as product of LED rated current by coefficient 104 and minimum value obtained as quotient of LED rated current by current gain coefficient of the transistor multiplied by coefficient 105.
EFFECT: provision of permanent testing of electrolyte level and charge state for accumulators included into accumulator battery while ensuring its reliable operation within the whole service life in wide range of outdoor temperature.
2 cl, 2 dwg
FIELD: electrical engineering.
SUBSTANCE: method for automatic control of technical condition of serial accumulator battery components includes processing of data obtained as test results at n+1 output terminals connected to the tested accumulators in n test points, number assignment of serial test points, scaling of currents from each component of the accumulator battery with scaling factor from each test point proportional to the number of test point i, calculation of voltage limit UΣlim, corresponding to the case when all components of the tested accumulator battery are in good running order; moreover scaled currents from each test point are summed up in the summation point and are transferred through communication link to the data processing device where summed current is converted to proportional voltage UΣ and then this voltage is subtracted from voltage limit UΣlim and the number of a component in the accumulator battery with short-circuiting is identified by the value resultant voltage UΣlim-UΣ. Additionally invention claims device for method implementation.
EFFECT: reliability improvement of the accumulator battery operation by element-wise control of its technical condition at different stages of operation.
3 cl, 1 dwg
SUBSTANCE: accumulator battery element comprises an element that generates energy, an electrode connected with an element, which generates energy, and configured as capable of electric connection of the energy-generating element with the outer side, and the outer element configured as capable of covering the energy-generating element, besides, an electroconductive element in the proposed device is arranged in the form of a thin film connected with an insulating layer. The outer element includes an insulating layer and an electroconductive layer, and the electroconductive layer includes a section of connection, electrically connected with the outer side.
EFFECT: invention provides for reliable monitoring of an accumulator battery with device compactness and without increase of battery size with such a device, which is the technical result of the invention.
17 cl, 17 dwg
FIELD: electrical engineering; evaluating power characteristics of accumulator cells.
SUBSTANCE: automatic parameter measuring device implementing proposed method has microcomputer connected to regulated reference-voltage supply, to differential amplifier input, and to positive accumulator cell positive lead; the latter is connected through electronic switch to loading resistor; one of microcomputer outputs is connected to control input of electronic switch; newly introduced in device are time-bounded analog signal storage device and analog-to-digital converter.
EFFECT: enhanced reliability of data obtained for unbiased evaluation of electrical characteristics of cell.
1 cl, 5 dwg
FIELD: electrical engineering; production of storage batteries primarily for vehicles but also for other industries.
SUBSTANCE: proposed storage cell has case in the form of jar with lid accommodating plates at least partially immersed in electrolyte and connected to pole terminals brought out through case lid, and at least one sensor responding to cell parameters that generates electric signals and has its output connected to input of processor whose output is connected to cell parameters display. Storage cell has one or more various sensors such as cell state-of-charge sensor, cell terminal voltage sensor, motor-car supply voltage sensor, sensor responding to voltage drop during engine starting, engine starts sensor, operating hours sensor, electrolyte specific gravity sensor, electrolyte level sensor, electrolyte temperature sensor, cell internal resistance sensor, and others. Storage cell incorporates provision for automatic measurement and digital or any other display of its most important basic parameters directly on cell proper and also on operator's or driver's workstation.
EFFECT: ability of automatic measurement and display of storage cell basic parameters.
19 cl, 7 dwg
FIELD: electrical engineering.
SUBSTANCE: proposed system designed for direct computer-aided monitoring of lead battery voltage across each cell, electrolyte temperature, specific gravity, and level, as well as voltage between battery poles and battery current is provided with respective sensors. All sensors responding to battery voltage, electrolyte temperature, specific gravity, and level and related to respective battery cells are connected to microcontroller that has switch, analog-to-digital converter, and microprocessor mounted on cell lid together with voltage converter affording power supply to microcontroller and sensors from battery cell. Voltage sensors inserted between battery poles and battery current sensors are also provided with microcontrollers. All microcontrollers are connected through electric isolators to local computer network single channel formed by communication line between first and second serial ports of controller connected to measurement data processing unit.
EFFECT: enhanced precision of evaluating battery parameters, reduced number of connecting lines, and enlarged functional capabilities of system.
1 cl, 1 dwg
FIELD: electrical engineering; remote in-service check of storage battery for condition.
SUBSTANCE: proposed device has cell plug body with emitter and detector built therein. Cell plug body accommodates lead weight, rubber valve preventing escape of electrolyte during aircraft evolutions, and conductors running from emitter and detector. Depth of plug immersion in electrolyte is adjusted by means of lock-nut that holds down insulating gasket. Plug is turned into cell case. Separator is used to prevent ingress of foreign objects in cell. Device also has standard-pulse generator, unit for measuring arriving signal, comparison unit that functions to compare standard signal with that obtained. Converter and display are used, respectively, to convert and display error signal.
EFFECT: enhanced precision of check and improved design of electrolyte specific gravity measuring transducer.
1 cl, 1 dwg
FIELD: measuring battery reactance corresponding to definite degree of its charge.
SUBSTANCE: proposed device has sine-wave master oscillator connected through one lead to digital meter and through its other lead, to battery; digital meter has compensating device, code-to-voltage converter, and result register; output of mentioned sine-wave master oscillator is connected to input of compensating device and additional lead, to code input of code-to-voltage converter; reference-power supply is connected to analog input of mentioned converter whose output is connected to input of result register; compensating-device output is connected to input of code-to-voltage converter.
EFFECT: enhanced measurement accuracy and sensitivity of device.
1 cl, 2 dwg