Equalising connection of second type |
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IPC classes for russian patent Equalising connection of second type (RU 2392720):
 Motor with bell-shaped armature and a device for estragaste / 2195756
The invention relates to the field of electrical engineering, namely, devices for estragaste motor with bell-shaped armature
 Dc machine / 2168835
The invention relates to electroradiographic and can be used as a constant current source and the motor DC drive
 Dc machine and., skibicka / 2091966
The invention relates to electric machines, DC and covers both electric motors and generators
 Method for manufacturing of electric machine rotor winding / 2368995
Invention is related to the field of electric engineering and concerns technology for manufacturing of electric machine rotor winding. Method is suggested for manufacturing of electric machine (10) rotor winding, comprising at least four excitation poles (P) installed in stator (11), collector rotor (13), having grooves arranged along circumference and pole teeth (Z), number of which differs from number of excitation poles, sections (S) of winding and the same number of collector plates (L), number of which is at least twice more than number of pole teeth (Z). As sections (S) are wound onto pole teeth by winding wire in continuous mode, after fixation of winding wire (17) on initial plate (La) on the first pole - tooth (Z1) the first section (S1) of winding is wound with selected angle shift (φ0) relative to initial plate (La), then winding wire (17) with specified pitch (Y) along collector is fixed on another collector plate (L), which is a final plate (Le) for wound section, then serially from each collector plate (L) winding section (S) is wound onto pole tooth (Z) with lowest deviation (Wf) of selected angle shift (φ0) from electric angle identified by pole division of stator, afterwards winding wire (17) is entered in contact with another plate (Le), which is spaced by specified pitch (Y) along collector until all winding sections (S) are wound on pole teeth (Z).
 Two-pole commutator electric machine / 2079953
 Device for diagnostics of electric commutator machines switching condition / 2383030
Invention is related to the field of electromechanics and may be used to detect extent of their sparking. Device for diagnostics of electric commutator machines switching condition comprises optical synchroniser on the basis of electro-optical Kerr or Pockels cell and two polarisers, which are electrically connected to each other, photoelectric transducer, amplifier, electronic registering instrument and system of optical synchroniser control with electric sensor of commutator position synchronisation, device for controlled delay of pulses and pulse amplifier. Commutator of electric machine under trailing edge of brush, optical synchroniser and optical input of photoelectric transducer are connected optically. Output of commutator position synchronisation sensor is connected to input of device for controlled delay of synchronisation pulses, output of which is connected to input of pulse amplifier, and electrodes of amplitude light modulator are joined to output of pulse amplifier. Test results demonstrated that accuracy of information on extent of sparking at each moment of switching period at each commutator plate increases by 12%.
 Direct-current motor brush gear / 2302069
Proposed DC motor brush gear has commutator with alternating conducting and insulating segments as well as reverse-polarity brushes contacting the latter and commutation improvement unit. The latter is built around transistors, bases of two transistors with different polarity of conductivity p-n-p and n-p-n being connected to each conducting segment; collectors of these transistors are interconnected and connected to motor armature winding and emitter of each transistor is connected through resistor to base and to slip ring mounted on motor shaft. Brushes are disposed on geometric neutral and connected to power supply through controlled voltage divider.
 Device for shaping commutating field of commutator machine / 2251780
Proposed device designed for use in commutator machines provided with compensating winding, commutating poles, and any type of excitation has main poles, commutating poles, compensating winding, and armature current sensor; novelty is that in order to improve commutation in any transient mode of operation of electrical machine due to shaping desired commutating field for slot residing in commutation zone, control unit selects adequate mechanism to change task for pulse-width converters feeding commutating poles whose coils are wound on external magnetic system for which purpose control unit processes signals arriving from armature current sensor and from rotor position and speed sensor read out for moment when previous slot was in commutation zone. Commutating pole shoes do not need changing their shape.
 Method for generating commutating field in single-phase commutator motor / 2251205
Proposed method intended to compensate for transformer emf in commutated coils of armature winding under any operating conditions including starting period, when armature is motionless or rotates at slow speed, includes generation of magnetic-field traveling wave in commutation region that induces rotational emf in commutated coils to compensate for transformer emf even when armature is motionless. Novelty is that magnetic field traveling wave is produced in commutated region by combination of asymmetry of unlike-polarity commutating pole shoes relative to geometric neutral and phase shift between currents feeding their windings from independent controlled ac converters. In the process function of fixed magnetic field on geometric neutral is maintained.
 Device for improving commutation of direct-current commutator machines / 2250549
Two radio signal sensors disposed near anode and cathode brush contacts respond to electromagnetic pulses caused by commutation processes and resonance-tuned circuits discriminate frequency band distinguished by highest correlation of these signals. Upon occurrence of arcing signals arrive at increment counter. Control unit functions to alternately connect outputs of radio signal sensors through analog multiplexer to insensitivity-threshold comparator whose output signal arrives at increment counter. Control unit reads out counter content in certain interval and clears it for new count implementing number-pulse conversion. The heavier the arcing, the greater number of pulses is accumulated by counter within preset time interval. Control unit reads out armature current through analog-to-digital converter thereby enabling computation of initial supply current through commutating poles. Then control unit computes averaged value of signals arriving from commutation sensors and current through commutating winding, its criterion being minimization of averaged values of signals coming from radio signal sensors. Commutating poles can be forced to improve dynamics in which case control unit checks up commutating pole current through analog-to-digital converter. In this way control system continuously computes supply current through commutating winding at which averaged feedback signal has minimal density and amplitude with respect to state of commutation from sensors.
 Device for improving the switching of the collector car ac / 2194354
The invention relates to electrical engineering, and in particular to devices for improving the switching manifold AC machines, and can be used in electric machines with additional poles
 Device for improving commutation collector dc machines / 2189101
The invention relates to the field of electronics, namely the switching manifold DC machines
 Device for improving commutation collector dc machines / 2172547
The invention relates to electrical engineering, in particular to devices for improving commutation collector DC machines, powered by static converters
 Dc electric machine with a forming device of the switching field / 2123753
The invention relates to electrical engineering and can be used in electrical machines DC with additional poles and the compensating winding
 Dc electric machine with a forming device of the switching field / 2119225
The invention relates to electrical engineering and can be used in the collector electrical machines DC with additional poles and the compensating winding
Device for improving commutation of direct-current commutator machines / 2250549
Two radio signal sensors disposed near anode and cathode brush contacts respond to electromagnetic pulses caused by commutation processes and resonance-tuned circuits discriminate frequency band distinguished by highest correlation of these signals. Upon occurrence of arcing signals arrive at increment counter. Control unit functions to alternately connect outputs of radio signal sensors through analog multiplexer to insensitivity-threshold comparator whose output signal arrives at increment counter. Control unit reads out counter content in certain interval and clears it for new count implementing number-pulse conversion. The heavier the arcing, the greater number of pulses is accumulated by counter within preset time interval. Control unit reads out armature current through analog-to-digital converter thereby enabling computation of initial supply current through commutating poles. Then control unit computes averaged value of signals arriving from commutation sensors and current through commutating winding, its criterion being minimization of averaged values of signals coming from radio signal sensors. Commutating poles can be forced to improve dynamics in which case control unit checks up commutating pole current through analog-to-digital converter. In this way control system continuously computes supply current through commutating winding at which averaged feedback signal has minimal density and amplitude with respect to state of commutation from sensors.
Method for generating commutating field in single-phase commutator motor / 2251205
Proposed method intended to compensate for transformer emf in commutated coils of armature winding under any operating conditions including starting period, when armature is motionless or rotates at slow speed, includes generation of magnetic-field traveling wave in commutation region that induces rotational emf in commutated coils to compensate for transformer emf even when armature is motionless. Novelty is that magnetic field traveling wave is produced in commutated region by combination of asymmetry of unlike-polarity commutating pole shoes relative to geometric neutral and phase shift between currents feeding their windings from independent controlled ac converters. In the process function of fixed magnetic field on geometric neutral is maintained.
Device for shaping commutating field of commutator machine / 2251780
Proposed device designed for use in commutator machines provided with compensating winding, commutating poles, and any type of excitation has main poles, commutating poles, compensating winding, and armature current sensor; novelty is that in order to improve commutation in any transient mode of operation of electrical machine due to shaping desired commutating field for slot residing in commutation zone, control unit selects adequate mechanism to change task for pulse-width converters feeding commutating poles whose coils are wound on external magnetic system for which purpose control unit processes signals arriving from armature current sensor and from rotor position and speed sensor read out for moment when previous slot was in commutation zone. Commutating pole shoes do not need changing their shape.
Direct-current motor brush gear / 2302069
Proposed DC motor brush gear has commutator with alternating conducting and insulating segments as well as reverse-polarity brushes contacting the latter and commutation improvement unit. The latter is built around transistors, bases of two transistors with different polarity of conductivity p-n-p and n-p-n being connected to each conducting segment; collectors of these transistors are interconnected and connected to motor armature winding and emitter of each transistor is connected through resistor to base and to slip ring mounted on motor shaft. Brushes are disposed on geometric neutral and connected to power supply through controlled voltage divider.
Device for diagnostics of electric commutator machines switching condition / 2383030
Invention is related to the field of electromechanics and may be used to detect extent of their sparking. Device for diagnostics of electric commutator machines switching condition comprises optical synchroniser on the basis of electro-optical Kerr or Pockels cell and two polarisers, which are electrically connected to each other, photoelectric transducer, amplifier, electronic registering instrument and system of optical synchroniser control with electric sensor of commutator position synchronisation, device for controlled delay of pulses and pulse amplifier. Commutator of electric machine under trailing edge of brush, optical synchroniser and optical input of photoelectric transducer are connected optically. Output of commutator position synchronisation sensor is connected to input of device for controlled delay of synchronisation pulses, output of which is connected to input of pulse amplifier, and electrodes of amplitude light modulator are joined to output of pulse amplifier. Test results demonstrated that accuracy of information on extent of sparking at each moment of switching period at each commutator plate increases by 12%.
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FIELD: electricity. SUBSTANCE: invention relates to the field of electric engineering, namely to DC electric machines with duplex lap winding of anchor, when deciding factor is simplicity and manufacturability of assembly of applied equalising connections of the second type. Beginning of equaliser is connected to collector plate of considered section, and connection itself is arranged in the form of turn laid till the middle of axial length of anchor slots, where this section is installed. EFFECT: simplified assembly of equalising connections of the second type by means of their installation into anchor slots. 1 dwg
The invention relates to the field of electrical engineering, namely to electrical machines DC with two-way loop armature winding when the determining factor is the ease of installation and adaptability used in these egalitarian compounds of the second kind. Known equalization connection of the second kind for electrical DC machines (MPT) with the two-way loop armature winding, close to the claimed connection on the basis of uniform distribution of current in parallel branches of both passages winding (Tails B.C. Electric machines: DC Machines. - M.: Higher. HQ., 1988. - P.172 - S). Structurally, it does not differ from levelling compounds of the first kind, but it can only be used in asymmetric winding. Another disadvantage of these compounds is that they do not exclude the circuit through different brushes alternating current, which arises because of the ripple EF the sockets and collector frequency in different turns of the winding. The closest in technical essence to the claimed compound (prototype) is egalitarian connection of the second kind for electric MPT with the two-way loop armature winding, the beginning of which is attached to the middle of the back of the frontal part winding section, and an end to the collector plate, loc is defined between the first and second collector plates this section (Tails B.C. Electrical machines: DC Machines. - M.: Higher. HQ., 1988. - S, P.172). These levelers are used in the two-way symmetrical loop winding and exclude the circuit through different brushes AC due to pulsation, EDS. However, installation of these compounds in a car is difficult and ethnological, as it requires crossing and reliable mounting of insulated conductors through the sleeve anchors where there is no magnetic field of the machine. The invention solves the problem of the ease of installation leveling compounds of the second kind by laying into the slots of the armature. This is achieved by the fact that equalization connection of the second kind for electric MPT with the two-way loop armature winding, the beginning of which is attached to the middle of the back of the frontal part winding section, and the end - to collector plate located between the first and second collector plates in this section, according to the invention, the beginning is attached to the first collector plate section, and the equalizer is made in the form of a coil, stacked up to the middle of the axial length of the slots of the armature, which is considered a section. The invention is illustrated graphically. The drawing shows the connection diagram of the inventive equalization connection of the second kind. The equalizer Has made in the form of a coil, stacked up to the middle of the axial length L of the groove is at anchor, which is the section S. the Beginning of The equalizer is attached to the main plate 1 collector To, and the end - plate 3 located between the collector plates 1 and 2, which are attached to section S. Because the length of the active part of the equalizer is equal to L/2 (figure 1), i.e. half the length of the active side of the section S, then the rotation of the armature in the magnetic field of the machine in turn We will indoctrinates EMF equal to half of the EMF section S. Therefore, equalization connection At the end of which is attached to the collector plate 3, will divide the voltage between the plates 1 and 2 in half. The inventive leveling compound can be used in the medical industry with asymmetric two-way loop windings of the armature to prevent the circuit through different brushes AC due to pulsations EMF the sockets and collector frequency in different turns of the winding. For ease of installation, levelling compounds on the armature core should be placed at the bottom of the slots before placing the anchor winding. When this straight rear windshield portion of the loop should be formed below the bottom of the groove in the gap between the sheets of iron anchors. Compared with the prototype installation of the inventive equalization connection of the second kind at anchor MPT simpler and more technologically advanced. Equalization connection of the second kind for electrical machines postoyanno the current two-way loop armature winding, the beginning of which is attached to the middle of the back of the frontal part winding section, and the end - to collector plate located between the first and second collector plates in this section, characterized in that the beginning is attached to the first collector plate section, and the equalizer is in the form of a coil, stacked up to the middle of the axial length of the slots of the armature, which is located in this section.
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