256results about "DC commutator" patented technology

A constant micro power energy system (CMPES) device to harness sustainable energy sources and generate power including a main body structure having a base plate, a frame extending from the base plate, and a top plate positioned at the top of the frame. The CMPES device includes a flask barrel positioned in the frame and motors positioned on the top plate. The CMPES device includes a ring gear connecting the flask barrel and a motor shaft of the motor. The CMPES device includes disc generators positioned inside the flask barrel. The motors supply power to drive the flask barrel to rotate constantly at a predetermined speed in order to generate continuous and simultaneous Alternating Current (AC) and Direct Current (DC) electrical power output. The motors facilitate direct transmission to the disc generators in order to provide the electrical power output to panel systems connected to the CMPES device.

The disclosure relates to a four-phase motor and generator device with increased efficiency for generating electrical energy. The device features a stator wall with eight stator slots and four pole groups, and an armature rotatable within the stator wall. The eight stator slots are divided into four pole groups of opposing stator slots; the two opposing stator slots include an N (North) stator slot and an S (South) stator slot. N and S stator slots are alternatively activated in response to the rotation of the armature. The activation of the armature pole groups results in armatures rotating the magnetic field within the stator wall, and only four of the eight poles are actively coupled in any given configuration. The disclosure also includes a method of operating the motor for generating electrical energy with increased efficiency and in an environmentally friendly manner compared to conventional motors.

A rotor core of a rotary electric machine according to the present application is capable of adjusting the flow of magnetic flux at the tip of a tooth. The rotor core of the rotary electric machine is provided with a slot portion in which a coil is wound, and a tooth portion that forms a space in which the coil is wound in the slot portion, a boundary portion of the inner peripheral side of the tooth portion with the slot portion being formed by a flat portion and a curved portion, the flat portion being formed in a straight line perpendicular to the radial direction, the curved portion being formed in a curved line continuous with the flat portion via a corner provided at the boundary with the flat portion, the curved portion being located at a position closer to the tip than the flat portion in the circumferential direction of the tooth portion.

DC motor (1) for operation in an external magnetic field comprising: a rotor (2) which is rotatable about an axis of rotation (5) and has at least two windings (10, 11), at least four continuous rotary transformers (3), two rotary transformers (3) being assigned to each of the windings (10, 11) and being designed to supply the respectively assigned winding (10, 11) with direct current, an angle sensor (4) designed to determine the angular position of the rotor (2), and a control unit (15) designed to control the current supply to at least one of the windings (10, 11) as a function of the angular position of the rotor (2), wherein the motor (1) is aligned with an external magnetic field during operation such that the axis of rotation (5) extends transversely to the external magnetic field.

To enable a coil body to be supported by an armature core and ensure the positional accuracy of the coil body with respect to the armature core.SOLUTION: A stator has a stator core, a coil body 32, and a coil body support member 60. The coil body 32 has a band member 34 wound annularly in the circumferential direction, a coil 16 formed on the band member 34, and a coil body side recess 34D provided on the band member 34. The coil body support member 60 is provided between the stator core and the coil body 32 and is attached to the stator core. The coil body support member 60 has a support member side protrusion 62D. The coil body 32 is positioned with respect to the stator core by engaging the support member side protrusion 62D and the coil body side recess 34D.SELECTED DRAWING: Figure 17

An electric motor with shaft, rotor and stator. The stator has a pair of magnets amd the rotor has a number of rotor poles, and the same number of electrically isolated pole windings and inter-pole spaces. The motor has first and second commutators, each divided into equally arc spaced commutator segments, the same number as the number of rotor poles.Each winding begins at a segment of the first commutator, passes through a first inter-pole space and back through an inter-pole space two spaces counterclockwise of the first space to complete a first winding turn, and after pre-selected number of winding turns, passes back through an inter-pole space three spaces counterclockwise of the first space for a second same number of winding turns as the first pre-selected number. The winding is completed at an segment of the second commutator arc-aligned at the same arc degree on the rotor shaft with the first commutator.In the electric motor the two magnets are separate by a gap between them such that a line through the gap is 90 degrees out of alignment with a line between a pair of oppositely signed motor brushes.The electric motor has two brush sets, with each of the two brush sets each having a pair of oppositely disposed brushes electrically isolated from each other and on opposite sides of the commutator.A method for parallel simultaneous internal generation of an output current in a motor, while the motor is drawing current to spin a motor shaft is also presented.

The present invention relates to a coupling system (5) for an electric machine, between the reducer (4) and the electric motor (2) of the machine, the coupling system (5) being formed by two coupling elements (51, 52), a first coupling element (51) is arranged at a shaft (41) of the reducer (4), and a second coupling element (52) is arranged at a shaft (21) of the electric motor (2). Abstract figure: Figure 1

The utility model relates to a two-antipode magnetic steel and one-pair carbon brush motor for a short-time working mode, and solves the technical problems of low production efficiency and high cost caused by the structure in the prior art. The motor comprises a casing, two carbon brushes, four magnetic steels and a rotor, wherein the two carbon brushes and the four magnetic steels are arranged on the inner wall of the casing; the included angle between the two carbon brushes is 90 degrees; the rotor is provided with an armature with a six-groove structure and six commutators, or is provided with a 12 * N groove structure and 12 * N sheets; six grooves of the armature and six commutators form a group; the armature part corresponding to each groove is marked as a-f, and the rising piece between the armature d and the armature e is taken as a starting point and marked as 1-6; the winding structure is as follows: a lead is led in from a riser 3 # and a riser 6 #, is wound along an armature d and an armature a and then is led out along a riser 1 #; a lead is led in along the riser 2 # and the riser 5 #, is wound along the armature c and the armature f and then is led out along the riser 6 #; a wire is led in along the rising piece 1 # and the rising piece 4 #, is wound along the armature b and the armature e, and then is led out along the rising piece 5 #.

The invention discloses a high-voltage brush direct current motor and a winding method, and the high-voltage brush direct current motor is characterized in that a magnetic structure is arranged at the outer side of a rotating part in a surrounding manner, the upper end and the lower end of the rotating part penetrate through an outer shell, and bearings are arranged at the contact positions of the upper end and the lower end of the rotating part and the outer shell; the upper end and the lower end of the rotating part are matched with the bearing to rotate, the columnar carbon brush is fixedly installed on the inner side of the outer shell and attached to the rotating part, and the center line of the columnar carbon brush coincides with the center line of the magnetic pole of the magnetic structure. The commutator of a multi-piece structure is adopted, the insulating grooves for voltage division are formed between the commutator segments, through the optimal design of the commutator, stable operation can be achieved under the highest voltage of 100 VDC, the creepage problem caused by too large electric arc is effectively avoided, the voltage is effectively divided by reasonably controlling the insulating distance between the commutator segments, the electric arc of the positive electrode and the negative electrode is reduced, and the service life of the commutator is prolonged. And the reliability and the stability of the motor are improved.

[Integrated electrically insulated bearing device, particularly for electric motors or machines] The device includes a bearing 10 having a first ring 12 and a second ring 14. The device includes an insulating sleeve 26 mounted on the second ring 14 and having a bushing 28 and an insulating lining 30. The insulating lining is fixed to the second ring 14 and to at least one of the outer and inner surfaces of the bushing 28. The bushing 28 also includes first and second front faces 28c, 28d defining the axial length of said bushing.A first connecting chamfer 28e links the first front face 28c of the socket to the outer surface, and is provided with a first concave radius connecting to the outer surface by forming a sharp edge, a second concave radius connecting to the first front face 28c by forming another sharp edge, and a frustoconical surface extending between the first and second concave radii. Reference: Figure 1.

The present invention relates to a linkage system for an output shaft (21) of an electric machine with a transmission system, the linkage system being formed by a linkage element (3) mounted on the output shaft (21), the output shaft (21) having knurling (22). Abstract figure: Figure 1

To provide a technique capable of holding energization in an electric motor with a simple configuration even after a manual switch for a reciprocating tool is turned off.SOLUTION: A reciprocating tool includes a reciprocating member, an electric motor, a transmission device, a drive circuit, a first manual switch, a switch element and a control circuit. A first contact point of the first manual switch is connected to a power supply, and a second contact point of the first manual switch is connected to the drive circuit. The first manual switch in its on state connects the first contact point to the second contact point. The switch element (i) is turned on when it receives an electric signal, and (ii) establishes electrical continuity between the first contact point and the second contact point in its on state. In response to at least the first manual switch being turned on, the control circuit continues to output the electric signal to the switch element until the drive of the electric motor is stopped.SELECTED DRAWING: Figure 6

A permanent magnet motor includes a rotor and an irregular polyhedron-shaped magnet assembly. The rotor may define at least one magnet opening and may be configured to rotate within a circular opening defined by a stator. The irregular polyhedron-shaped magnet assembly may be disposed in the magnet opening and may define a magnetization direction, wherein a height along the magnetization direction and perpendicular to a lamination plane of the rotor is greater at both ends than at a central portion disposed therebetween.

The invention relates to a synchronous electric machine (10) for aircraft, which comprises a stator (13) and a wound rotor (38) inserted into the stator, the stator comprising two sets of stator coils (47, 49) intended to be connected to different power converters, and the wound rotor comprising a rotor shaft (11) and two rotor coils (39, 40) each intended to be supplied with a different supply current. The two sets of stator coils are arranged in the stator in such a way that when a first set of stator coils (47) fails, the second set of stator coils (49) cooperates with at least the second rotor coil (40) supplied with the associated supply current in order to generate a mechanical torque on the rotor shaft, and so that the power converter connected to the first set of stator coils does not deliver any electrical power.

The utility model provides a micromotor, which comprises a shell, a group of carbon brushes, an armature, a commutator, a permanent magnet and an output shaft, one end of the commutator is electrically connected to the armature, and the other end of the commutator is fixedly connected to the output shaft; the two sides of the commutator are respectively and oppositely provided with a carbon brush. The armature is wrapped by the shell; a group of opposite permanent magnets are arranged on the inner wall of the shell; a preset distance is arranged between the opposite permanent magnets; the output shaft penetrates out of the shell and extends out by a preset distance. The service life is effectively prolonged, and the operation noise is reduced through the arrangement of the narrow groove, so that the service life of the micromotor is long.

The invention relates to the technical field of direct-current brush motors, and discloses a disturbance voltage filter circuit of a direct-current brush motor, which comprises a wiring terminal J1 connected to a live wire, a wiring terminal J2 connected to a zero wire and a rectifier bridge BR1, and a filter circuit is also connected between the rectifier bridge BR1 and the direct-current brush motor; differential-mode noise is suppressed through the added differential-mode inductor, the amplitude and frequency of the noise are effectively reduced, the electromagnetic compatibility of the circuit is improved, the filtering effect can be further improved through the design that the resistor is connected to the differential-mode inductor in parallel, a damping network can be formed through the addition of the resistor, residual energy in the inductor can be absorbed and dissipated, the resonance phenomenon is reduced, and the filtering effect is improved. The two same differential mode inductors are added, and the resistors are connected to the differential mode inductors in parallel, so that the configuration of the filter circuit is more flexible, the values of the differential mode inductors and the resistors can be adjusted according to actual needs, and the optimal filtering effect is achieved.

The utility model discloses a brush stepping motor, and relates to the technical field of motors. The two ends of the motor rotor are matched with the ball bearings respectively, the motor rotor is arranged in the motor shell, the commutator ring is installed on the motor rotor, commutator contacts are further installed in the motor shell, the commutator contacts are matched with the commutator ring, and a PCB with a Hall sensor is fixed to the probe shell through epoxy resin adhesive and first self-tapping screws. The positioning plunger is sleeved with a plunger spring, the positioning plunger is fixed in the execution cover through a second self-tapping screw, the terminal cover, the electric brush spring and the electric brush are all inserted into the execution cover, the sealing element is fixed on the bearing cover through a sealing element fixer, and the bearing cover is internally matched with a ball bearing through a spring washer. The interior of the groove of the motor shell is coated with silicone sealant, and the hot pile is heated into the motor shell. The device is reasonable in structural design, convenient and reliable to install, capable of achieving accurate control, high in operation efficiency and high in practicability.

The invention discloses a roller shutter equipment, a motor and a brake device, The brake device is used for braking motor rotor. The brake device includes a permanent magnet and a magnetic conductor, one of the permanent magnet and the magnetic conductor is used for connecting the motor rotor and the other one is used for connecting the motor stator. The permanent magnet includes N magnetic poles, the magnetic conductor includes N slots, the brake device constitutes a N poles N slots structure, where N is an integer greater than 1. The brake device is applied to motor and roller shutter equipment, it realizes rapid braking, at the same time it can effectively reduce the vibration frequency of the motor and avoid the vibration frequency of the cover shell of the roller shutter equipment. It avoids resonance, ensures normal operation of the motor and reduces motor noise during operation.

The present invention discloses a push rod DC motor with a brake device, which relates to the technical field of push rod motors. The main structure includes a motor assembly, a brake assembly and a front end cover assembly; the brake assembly is arranged at the rear end of the motor assembly, and the front end cover assembly is arranged at the front end of the motor assembly; the front end cover assembly is used to detect the rotation speed of the rotating shaft in the motor assembly. The brake assembly uses a brake spring to make multiple brake pads hold the rotating shaft of the motor assembly. Only when the rotating shaft rotates in the forward direction, the brake spring releases the brake by relying on the friction between the rotating shaft and the multiple brake pads. When the rotating shaft reverses, the brake spring holds the multiple brake pads to further increase the braking force, thereby avoiding the reversal of the rotating shaft; at the same time, the rotation speed of the rotating shaft is detected by the front end cover assembly, so as to adjust the working state of the push rod DC motor.

Systems and methods are provided for controlling the application of current to stator and rotor windings of a motor. An electric machine includes a stator including stator windings. A stator controller is configured to control current through the stator winding to generate a wireless power signal. A rotor includes a rotor winding and a rotor circuit. The rotor circuit includes a switch bridge coupled to the rotor winding and a capacitor coupled across the switch bridge. The rotor winding receives the wireless power signal from a stator winding of the stator windings. A rotor controller determines a capacitor voltage, a reference current based on the capacitor voltage, and a rotor current through the rotor winding. The rotor controller controls the switch bridge of the rotor circuit to change a switching state based on the reference current and the rotor current.

The invention provides a digital variable-frequency generator control system, which is characterized by comprising an oil engine for providing mechanical energy; the motor has two working states, when the motor is in a motor working mode, the oil engine is started, and when the motor is in a generator working mode, the motor ECU is driven to generate electricity by means of mechanical energy provided by the oil engine; the motor ECU is used for converting the mechanical energy provided by the oil engine into electric energy; the battery is used for providing energy to start the motor when the motor is in a motor mode; and the inverter feeds the electric energy back to the power grid and stores the electric energy in the energy storage element. The starting motor and the generator are combined into a whole, the motor is directly controlled through a software algorithm so that the motor can work in an electric state and a power generation state, the product cost is reduced, and the product reliability and the system stability are improved.

The utility model discloses a 48V DC brush motor comprising a housing, a stator assembly, a rotor assembly, a commutator and a carbon brush. The number of the stator assembly is an even number of stator magnetic shoes; the rotor assembly comprises a rotor shaft and a rotor iron core fixed on the periphery of the rotor shaft, wire slots are formed on the periphery of the rotor iron core at intervals, the number of the wire slots is an odd number, winding coils are filled in the wire slots clockwise, and the span of the winding coils is 3; the commutator is fixed on the periphery of the rotor shaft, the carbon brush comprises a first carbon brush and a second carbon brush, and the included angle between the first carbon brush and the second carbon brush is 90 degrees. According to the utility model, the structural arrangement of the wire ducts, the magnetic poles, the carbon brushes and the windings is optimized, and the DC brush motor which is stable in commutation and long in service life is provided.

A DC electric motor for driving a tailgate of a vehicle is provided, the DC electric motor including a rotor and a stator, the rotor being rotatably supported about an axis of rotation, at least one of the rotor and the stator having a magnetic asymmetry for generating an asymmetric magnetic interaction between the rotor and the stator, wherein the rotor and the stator are configured to assume first positions and second positions relative to each other, wherein a higher holding torque acts between the rotor and the stator in one of the first positions than in one of the second positions due to the asymmetry.

The invention relates to an electric motor (10) of a motor vehicle (2), comprising a housing (18) having a maintenance opening (44) into which a maintenance screw (46) is screwed. The maintenance screw (46) is bonded to the maintenance opening (44) by means of an adhesive (56). Furthermore, the invention relates to a motor scooter (4).

To change properties of a motor without lowering the degree of freedom in designing the motor, a coreless motor (100) includes a rotating shaft (20); a coil (60) that is formed by winding a conductive wire (61) into a cylindrical shape, the coil being configured to rotate together with the rotating shaft (20); and a cylindrical magnet (30) that is disposed inside or outside the cylindrical coil (60). An angle interval (β) about an axis (center C) of the rotating shaft (20) between conductive wire portions (as one example, between two parallel portions (62), (62)) in a single winding in the coil (60) is set to be different from an angle interval (a) about the axis (center C) of the rotating shaft (20) between magnetic poles (30N, 30S) of the magnet (30).

The invention is suitable for the technical field of miniature NGW speed reducing motor structures, and discloses a miniature NGW multi-stage planetary gear speed reducing motor which comprises a motor and a miniature NGW multi-stage planetary speed reducer installed at one end of the motor. The planetary reducer comprises a shell, a planetary reducing mechanism arranged in the shell and an output shaft, one end of the output shaft extends out of the shell, the other end of the output shaft penetrates through the shell and is connected with one end of the planetary reducing mechanism, a motor is provided with a driving shaft, one end of the driving shaft penetrates through the shell and is connected with the other end of the planetary reducing mechanism, and the length-diameter ratio t of the motor meets the relation that t is larger than or equal to 1 and smaller than or equal to 2; the ratio y of the diameter of the speed reduction motor to the diameter of the speed reduction box meets the relation that y is larger than 0.95 and smaller than 1.05, the transmission ratio i of the planetary speed reduction mechanism meets the relation that i is larger than or equal to 40 and smaller than or equal to 360, and the ratio k of the axial length of the shell to the outer diameter of the shell meets the relation that k is larger than 0 and smaller than 1. The planetary gear reduction motor provided by the invention not only meets the design requirement of large transmission ratio of the planetary gear reduction motor, but also reduces the length-diameter ratio of the planetary reducer.

In order to improve motor characteristics, this coreless motor (100) is provided with: a rotary shaft (20); a coil (60) which is formed in a cylindrical shape by winding a conductor (61) and rotates integrally with the rotary shaft (20); and a cylindrical magnet (30) which is disposed inside the cylindrical shape of the coil (60). One winding of the coil (60) is formed in a hexagonal shape having parallel sections (62) which are parallel to an axial direction (center C direction) of the rotary shaft (20) and two oblique side portions (63, 64) which are inclined with respect to a surface orthogonal to the center C direction and connected to both ends of the parallel sections (62), wherein the oblique side portions (63, 64) are formed in a curved shape protruding from the inner side toward the outer side of the one winding of the coil (60), and a tangential angle (θ) between a tangential line of the oblique side portion (63) drawn from a vertex where two adjoining oblique side portions (63, 63) in the one winding of the coil (60) are connected together at one end and a surface orthogonal to the rotary shaft (20) is set in a range of 15 [degrees] to 50 [degrees].

This invention provides a motor that suppresses corrosion that occurs at the connection point between the terminal electrodes and the aluminum rotor coil. [Solution] The motor 10 of the present disclosure is a motor comprising a stator and a wound-field type rotor, the rotor comprising a rotor core, an aluminum rotor coil wound around the rotor core, an aluminum terminal electrode provided at the end of the rotor coil, and a rotor shaft attached to the rotor core and rotating together with the rotor core, the aluminum terminal electrode being attached to the rotor shaft and configured to receive power from an electrode connected to an external power source.

The invention relates to a method for operating an electric motor for driving a vehicle, wherein in order to separately excite a rotor of the electric motor, said rotor being arranged on a rotor shaft, at least one first and second contact brush (4, 6) are pressed against paired contact rings (8, 10) of the rotor shaft in a quality-based manner such that a sufficient contact of the contact rings (8, 10) is produced by the contact brushes (4, 6) for a given excitation current while applying as little pressure as possible. The invention additionally relates to a computer program, to a computer program product, to a system, and to a vehicle.

The present invention relates to a direct current electric motor (1) with sliding contacts comprising a motor body (10), a drive shaft (15), a rotor (20), fixed to the drive shaft (15), a stator (30) coaxial to said drive shaft (15), a rotating slip ring (18), a pair of sliding electric contacts (40) cooperating with the slip ring (18), wherein the stator (30) comprises two pairs of poles each with two respective north (N1, N2) and south (S1, S2) magnetic poles and wherein with respect to two first (P1) and second (P2) planes orthogonal to each other, where the straight line of intersection of said planes coincides with the rotation axis (R) of the rotor (15), which define four quadrants (Q1, Q2, Q3, Q4) of the stator (30) of equal angular extension, said magnetic poles are each arranged on one of the four quadrants.