2659results about "Association with control/drive circuits" patented technology

The invention relates to a drive (30) comprising: - at least one dynamoelectric rotary machine (1) arranged in a housing (2), with a winding system (5) arranged in a stator (4) and a rotor (6) separated therefrom by an air gap (23), which is rotatably mounted about an axis (12) via at least one bearing (10) of a B-side cup-shaped end shield (7); - at least one converter, wherein the converter comprises at least some of the following components, such as power semiconductors, inductors, capacitors, control and regulation units, and communication units in a housing volume (13), wherein the converter is radially surrounded at least partially by the B-side end shield (7), and at least some components of the converter are thermally connected to the end shield (7), in particular by arranging heat-intensive components of the converter on an inner side wall (20) of the cup-shaped end shield (7).- wherein the converter is arranged axially between the dynamoelectric rotary machine (1) and the bearing of the B-side pot-shaped bearing shield (7).

The invention relates to a drive (30) with - at least one dynamoelectric rotary machine (1) arranged in a housing (2), with a winding system (5) arranged in a stator (4) and a rotor (6) separated therefrom by an air gap (23), which is rotatably mounted about an axis (12) via at least one bearing (10) of a B-side cup-shaped end shield (7), wherein the stator (4) and rotor (6) are located in a motor interior (18) - at least one inverter, wherein the inverter comprises at least some of the following components, such as power semiconductors, chokes, capacitors, control and regulation units and communication units, and is located in an inverter installation space (13) which is radially surrounded at least partially by the B-side end shield (7), wherein at least some components of the inverter are thermally connected to the end shield (7), in particular by thermally connecting heat-intensive components of the inverter,are arranged on an inner side wall (20) of the pot-shaped bearing shield (7), - wherein the converter is arranged axially between the dynamo-electric rotary machine (1) and the bearing of the B-side pot-shaped bearing shield (7), - wherein the motor interior (18) and the converter installation space (13) are separated by a shielding element (16).

An electric work machine with improved workability at high output, configured to cut a work target, is provided. The electric work machine comprises: a working portion configured to cut the work target and a main body including: a housing; a flow path forming portion; a motor; and a control unit, wherein the motor generates rotational power for driving the working portion, the control unit electrically controls rotation of the motor, the flow path forming portion forms an air flow path including a first air flow path and a second air flow path, the first air flow path communicates with an exterior of the housing to allow external air to flow to the motor via the control unit, and the second air flow path communicates with the exterior of the housing so as to allow external air to flow directly to the motor.

The unit includes a capacitor; an electric circuit electrically connected to the capacitor, a rotating electrical machine electrically connected to the electric circuit, and a shaft connected downstream of the rotating electrical machine in terms of power. The shaft does not overlap the rotating electrical machine when viewed in a first radial direction, one of the capacitor and the electric circuit overlaps the rotating electrical machine when viewed in the first radial direction, and the other of the capacitor and the electric circuit overlaps the shaft when viewed in the first radial direction.

The invention provides an axial magnetic flux motor driven RV speed reduction driving assembly which comprises an axial magnetic flux motor unit and an RV speed reducer unit which are connected, the axial magnetic flux motor unit and the RV speed reducer unit are integrated in a shell, the axial magnetic flux motor unit comprises a plurality of stators which are distributed in an annular mode, and the stators are connected with the axial magnetic flux motor unit. A stator is arranged on the rotor, a disc type rotor is arranged on each of the two sides of the stator, a plurality of torsion bars which are uniformly distributed in the circumferential direction are arranged on the rotor facing the side where the RV speed reducer unit is located, the torsion bars are connected with a sun gear of a planetary gear train of the RV speed reducer unit, and an output disc of the RV speed reducer unit is a power output end. The RV speed reduction driving assembly driven by the axial magnetic flux motor has the advantages of being large in starting torque, high in mechanical efficiency, compact in structure, high in overload capacity and the like.

A self-excitation motor disclosed by the present invention comprises a rotor, a first end of the rotor is equipped with a rectification circuit, the rotor comprises a rotor iron core and a plurality of harmonic windings and excitation windings, the rotor iron core is provided with rotor teeth, and each harmonic winding and each excitation winding are respectively wound on the corresponding rotor teeth. Each harmonic winding comprises a first harmonic winding and a second harmonic winding, the winding directions of the first harmonic winding and the second harmonic winding are the same, star connection is adopted, one ends of the first harmonic winding and the second harmonic winding are connected in series in a one-to-one mode, and the other ends of the first harmonic winding and the second harmonic winding are jointly connected to form a star neutral point; the other end of each second harmonic winding is connected with the midpoint of each bridge arm in the rectifying circuit in a one-to-one manner; the winding directions of the excitation windings on every two adjacent rotor teeth are opposite, and the two ends of each excitation winding are electrically connected with the direct current output end of the rectification circuit. This induces and rectifies the current for excitation more efficiently. The invention further provides a motor control strategy based on high-frequency harmonic current phase optimization.

The utility model provides a commutation stator module and a magnetic drive conveying system. The commutation stator module comprises a pedestal; the stator body is fixed on the base; the commutation armature winding is arranged on the stator body, and the commutation armature winding comprises a first commutation winding extending along a first direction and a second commutation winding extending along a second direction; the limiting assembly is arranged on the base, the limiting assembly comprises a limiting piece and a driving piece, the driving piece drives the limiting piece to ascend and descend, so that the limiting piece is switched between a receding position and a guiding position, the rotor module enters and exits when the limiting piece is located at the receding position, and the rotor module enters and exits when the limiting piece is located at the guiding position. When the limiting piece is located at the guiding position, the rotor module is limited and guided; a receding space is formed between the stator body and the base, and the driving parts are arranged in the receding space. In this way, the conveying direction can be changed without occupying extra space, and the conveying efficiency is high.

The invention discloses an efficient cooling driving motor for an electric industrial vehicle, which comprises a motor main body, the motor main body comprises a stator and a rotor, and the end part of a non-bearing end of a rotor rotating shaft is of a hollow structure; and the water cooling assembly comprises a rotating block, a liquid inlet pipe and a liquid outlet ring, a plurality of cooling pipes are arranged on the outer side of the rotating block in the circumferential direction, and one end of each cooling pipe is connected with the liquid outlet ring in a penetrating mode through the two sides of the stator. Cooling liquid firstly flows through the rotating hollow rotating shaft of the rotor to directly absorb eddy-current loss of a rotor core and winding heat, then is shunted to the cooling pipes on two sides of the stator through the rotating block, and absorbs heat of the stator core and the winding through the stator position, so that synchronous water cooling of a rotating part and a static part is realized; and an internal water cooling-external air cooling three-dimensional heat dissipation network is formed by matching with the air cooling assembly, so that the internal temperature difference of the motor is greatly reduced, performance degradation caused by local overheating is effectively inhibited, and a core guarantee is provided for high-power-density application and long-service-life operation of the motor.

The invention discloses a heat dissipation system and method for a sealed motor, and belongs to the technical field of sealed motors and transmission devices. The system comprises a motor unit, a multistage gearbox unit, a liquid cooling unit, an air cooling unit, a plurality of groups of sensors and a controller. The liquid cooling unit is integrated in the motor outer cover, and the air cooling unit is installed on the motor radiating ribs. According to the method, the total heating power and the variable target temperature of the system are dynamically calculated by collecting the current, the temperature and the rotating speed of the motor and gear signals of the gear box in real time, the required heat dissipation power is calculated in real time through a nonlinear function based on the temperature difference, and then heat dissipation resources of the air cooling unit and the liquid cooling unit are cooperatively distributed with the optimal energy efficiency ratio. According to the invention, feedforward prediction temperature control of dynamic working conditions is realized, the problems of heat dissipation lag, low energy efficiency and overheating risk of the sealed motor under complex load and multi-gear operation are solved, and the reliability, adaptability and overall energy efficiency of the system are significantly improved.

An electric motor may include a motor housing. An electric motor may include a shaft that extends in a longitudinal direction through a length of the motor housing, a first motor disposed within the motor housing and mounted to the shaft, a second motor disposed within the motor housing and mounted to the shaft. An electric motor may include an adaptor disposed within the motor housing, where a portion of the first motor and a portion of the second motor are disposed within the adaptor and the adaptor supports and pilots the first motor and the second motor. An electric motor may include at least one motor controller disposed on the adaptor and within the motor housing, the at least one motor controller electrically connected to the first motor and to the second motor.

The aircraft dual-redundancy two-in-one direct-drive electric driving system comprises an outer rotor assembly, a stator assembly and a controller assembly, the outer rotor assembly is rotationally connected with the stator assembly, the stator assembly comprises a stator shell and windings, the number of the windings is two, and three-phase outgoing lines of each winding penetrate through corresponding through holes A respectively; a sealing plug ring is arranged between each winding and the corresponding through hole A. The controller assembly comprises a circuit board and a wiring board, the circuit board and the wiring board are fixed in the installation cavity, IGBT modules are arranged on the circuit board at intervals, and three-phase outgoing lines of each winding are connected with the corresponding IGBT modules. The inner ring of the wiring board is connected with the corresponding IGBT module, two power supply connectors are arranged outside the stator housing, and the outer side of the wiring board is connected with the corresponding power supply connectors. The direct-drive electric drive system is highly integrated, compact in structure, efficient in heat dissipation and reliable in sealing and has the real high-reliability dual-redundancy capacity.

The utility model relates to an electric alloy cake rotary table which aims at solving the problems that an existing electric cake rotary table is complex in structure, unstable in base, not fine in rotating speed adjustment, insufficient in safety and the like. According to the turntable, the base and the turntable are made of high-quality alloy materials, so that the bearing capacity and the stability are enhanced; the motor is provided with an advanced electronic speed regulation system, stepless regulation of the rotating speed is achieved, and fine requirements under various use scenes are met; and meanwhile, various built-in sensors monitor the running state of the rotary table in real time, and a braking function can be quickly triggered in an emergency, so that the safety of a user and equipment is ensured. In addition, the rotary table is simple in structural design, easy to disassemble and assemble, and convenient for daily maintenance and operation. According to the utility model, an efficient, safe and convenient cake decoration tool is provided for a user, and the technical progress in the field of food decoration and display is promoted.

A power tool includes a housing, an electric motor disposed within the housing, a first printed circuit board assembly configured to selectively supply electric current to the electric motor, causing the electric motor to activate and drive a tool element, and a battery receptacle configured to support a removable battery pack. The battery receptacle has a battery terminal block electrically connected to the battery pack to supply electrical current to the first printed circuit board assembly. The power tool further includes a second printed circuit board assembly electrically connected between the first printed circuit board assembly and the battery terminal block. The second printed circuit board assembly has a fuse and a thermistor configured to detect a temperature of the fuse.

A second gear meshes with a first gear and is connected to an output member so as to rotate integrally with each other. A rotor, a planetary gear mechanism, and the first gear are disposed on a first axis in a described order from an axial first side toward an axial second side. A connecting member, a differential gear mechanism, and the second gear are disposed on a second axis parallel to the first axis in a described order from the axial first side toward the axial second side. The planetary gear mechanism has a smaller diameter than a rotating electric machine and a larger diameter than the first gear. The differential gear mechanism has a smaller diameter than the second gear and larger diameter than the connecting member.

A power tool includes a working component configured with the maximum output rotational speed; an electric motor configured with the maximum rotational speed; a transmission assembly configured with a transmission ratio; a driver circuit including one or more drive switches; and a controller for outputting a control signal to control the one or more drive switches of the driver circuit. At least one drive switch in the driver circuit includes a wide bandgap semiconductor switch, and the ratio of the required maximum rotational speed of the electric motor to the maximum rotational speed of the electric motor is less than or equal to 0.9. The electric motor system of the power tool has good electrical performance.

The utility model relates to a motor assembly which is used for toys and education systems. The motor assembly includes a body, a control circuit, a first electric motor, a second electric motor, a first shaft, and a second shaft. A first electric motor is configured to drive the first shaft by rotational motion and a second electric motor is configured to drive the second shaft by rotational motion. A control circuit is configured to independently control driving of the first electric motor and the second electric motor to provide independent rotational motion of the first shaft and the second shaft. In addition, the utility model further relates to various toys or education systems.

A military vehicle includes a cabin, an engine, an electric generator coupled to the engine, an energy storage system, and an export power system configured to facilitate exporting electrical power from at least one of the energy storage system or the electric generator. The export power system is configured to facilitate at least one of (a) wirelessly powering a device external to the cabin or (b) connecting the military vehicle to a ring-bus system to provide power to the ring-bus system.

The invention, which belongs to the technical field of the motor, discloses a two-in-one integrated electric drive assembly comprising a housing assembly, a motor controller and a motor stator assembly. The shell assembly comprises a motor shell, a motor front end cover and a motor rear end cover, wherein the motor front end cover and the motor rear end cover are connected to the two axial ends of the motor shell respectively. The motor controller comprises a motor controller shell arranged on the motor front end cover and the motor rear end cover, and a control unit and a controller three-phase copper bar which are respectively arranged in the motor controller shell; the motor stator assembly comprises a stator iron core installed in the motor shell, a stator winding arranged on the stator iron core and a motor three-phase line wiring terminal electrically connected with the stator winding. The motor shell and the motor controller shell are independently arranged, and the motor controller shell is installed on the motor shell. According to the invention, the motor controller and the motor shell are arranged independently, so that the disassembly and maintenance are convenient, and the assembly and maintenance difficulty is reduced.

The invention relates to the technical field of motors, in particular to a joint motor with torque control, which comprises a motor shell; the torque sleeve assembly is arranged between the output end of the speed reducer and the output shaft of the motor; the first coil assembly is connected with the motor shell and is matched with the torque sleeve assembly so as to obtain the rotating torque of the motor output shaft; the motor driving control board is connected with the motor shell and electrically connected with the first coil assembly; the code channel is arranged on an output shaft of the motor; and the electronic induction assembly is arranged on the motor driving control panel and is matched with the code channel so as to obtain the rotation angle of the motor output shaft, and the motor driving control panel is electrically connected with the electronic induction assembly. According to the joint gear motor, the rotating torque and the rotating angle of the output shaft of the motor can be accurately detected, and the size of the joint motor cannot be large.

The invention relates to a motor module (100) for a magnetic linear motor (207) of a linear transport system (200), wherein the motor module (100) comprises a motor module housing (101), a drive coil arrangement (103) for providing a drive magnetic field of the magnetic linear motor (207) and control electronics (105) for controlling the motor module (100), wherein the control electronics (105) comprises a control circuit board arrangement (113) with at least a first circuit board (115) and a second circuit board (117), wherein a first normal direction (N1) of the first circuit board (115) and a second normal direction (N2) of the second circuit board (117) are each arranged perpendicular to the direction of action (W), and wherein the first circuit board (115) is arranged substantially parallel to the longitudinal direction (L) and the second circuit board (117) is arranged substantially parallel to the transverse direction (Q). The invention further relates to a linear transport system (200).

An electromechanical actuator including an electric motor housed in a housing, the electric motor acting on a torque output element capable of being coupled to an element of a transmission gearbox of a motor vehicle. The torque output element is connected to the electric motor by drive means, and the torque output element is a main shaft configured to rotate about its axis of rotation with a first end and a second end. The actuator further includes a circuit board located in the housing, the circuit board comprises a sensor which faces a magnet mounted on a support coupled to the second end of the main shaft by means of a first swivel-linear mechanism.

The invention discloses a hub separation motor, and relates to the technical field of hub separation motors, the hub separation motor comprises a hub, a controller and a support used for installing and fixing the controller, the support is detachably assembled on the front side of the hub, the controller is detachably assembled on the front side of the support, a bolt is arranged on the front side of the support, and the controller is detachably assembled on the front side of the support. And a plurality of bolts are arranged, and the bolts are matched with the bracket to position the position of the controller. Through the arrangement of the hub, the controller, the support, the bolts, the connecting holes and the heat dissipation holes, the problems that a traditional fuel vehicle or a centralized electric drive vehicle needs to transmit power through a transmission shaft, a differential mechanism and other parts, and mechanical friction and energy loss exist are solved, and the effect of multi-wheel independent drive is achieved.

The present invention discloses a chainless electrical bicycle, which is designed to eliminate any type of mechanical means to transfer torque and power from pedals to a traction wheel. The present invention employs a generator to transfer a pedal torque and power with the help of power electronics, control electronics, a battery and control methods to a motor that is used for traction, which is attached to the traction wheel. The generator power is supplemented with the battery power, wherein the battery is rechargeable. The main purpose of the present invention is to emulate a mechanical chain bicycle operation, eliminate shortcomings of a mechanical chain bicycle, and introduce convenience features, such as, but not limited to, continuously variable electronic gear, a gravity compensation, a static and dynamic torque assistance, a ride charge feature, and an electric brake system.

An armature winding of multiple phases has a phase winding that is made of a plurality of partial windings for each phase. The partial winding includes a pair of intermediate conductor portions and crossover portions that connect the pair of intermediate conductor portions in an annular shape, and is configured by a conductor material being wound in multiple layers in the pair of intermediate conductor portions and the crossover portions. The intermediate conductor portions of the phases are arrayed in a predetermined order in the circumferential direction by one of the intermediate conductor portions of the pair of intermediate conductor portions of the partial winding of another phase being arranged between the pair of intermediate conductor portions of the partial winding. A sheet-shaped insulation covering body is provided in the intermediate conductor portion in a portion that opposes the intermediate conductor portion of the partial winding of another phase.

A sealing arrangement for passing electrical connections through a wall of a casing of a device for driving a compressor, formed as an electric motor with a stator and a rotor. The sealing arrangement has a connection arrangement with a holding element and at least one electrically conductive connecting element, which protrudes through a feedthrough hole of the casing from a volume enclosed by the casing. The connection arrangement has a sealing element in each case with a sealing sleeve for a connecting element, which, in an area of the feedthrough hole of the casing and a through hole of the holding element, full-circumferentially enclosing the connecting element, abuts in each case on the connecting element and on the casing and on the holding element in a fluid-tight and electrically insulating manner between the connecting element and the casing, and between the connecting element and the holding element.

The utility model relates to the technical field of motors, in particular to an integrated joint motor, which comprises a rotor comprising a rotor upper cover and magnetic steel arranged on the rotor upper cover; the harmonic reducer comprises a wave generator, a flexible gear and a gear, the wave generator is fixed on the rotor upper cover and drives the flexible gear, and the flexible gear is meshed with the gear; the connecting shaft is connected with the rotor and an output shaft of the harmonic reducer; the stator is fixedly arranged and forms an electromagnetic coupling gap with the magnetic steel; wherein the gear is fixedly connected with the output fixing seat, and the first stator is installed on the periphery of the output fixing seat and the gear. The robot joint is small in size, light in weight, high in torque output, high in output position control precision, high in power density and high in output position control precision, and is suitable for robot joints which have requirements for weight and space and are high in torque and control precision.

A motor includes a stator core, a coil portion, and a circuit board in a lidded cylindrical cover and covered with a covering portion that fills an inside of the cover. A guide portion of the cover is at an end portion of a board accommodation portion that surrounds and accommodates the circuit board. The guide portion accommodates and guides a lead wire to an outside in a radial direction. An end portion on an inside in the radial direction of a side wall portion is connected to the end portion on the one side in the axial direction of the board accommodation portion. An end portion on the one side in the axial direction of the side wall portion is farther to the one side in the axial direction than the end portion on the one side in the axial direction of the board accommodation portion.

An electric propulsion device includes a propeller, a motor rotating the propeller, an inverter controlling driving of the motor, and a cooling device cooling the motor and the inverter. The cooling device includes an intake port taking water around the electric propulsion device into the electric propulsion device as cooling water, a drain port discharging the cooling water taken into the electric propulsion device to around the electric propulsion device, a pump flowing the cooling water from the intake port to the drain port in the electric propulsion device, a motor water jacket cooling the motor with cooling water taken into the electric propulsion device, and an inverter water jacket cooling the inverter with cooling water taken into the electric propulsion device. The motor water jacket and the inverter water jacket are connected in series between the intake port and the drain port in the electric propulsion device.

A driving mechanism for moving an optical element is provided. The driving mechanism includes a fixed part, a movable part, and a driving assembly. The movable part is movably connected to the fixed part for holding the optical element. The driving assembly is configured for moving the movable part relative to the fixed part.

A battery pack may include a housing including a support portion connectable to and supportable by an electrical device, the support portion defining a channel operable to receive a projection on the electrical device, the support portion including a plastic material molded to define the channel, and a metal material molded in the plastic material, the metal material defining a C-shaped portion around the channel. A battery pack may include a plurality of battery cells supported by the housing. A battery pack may include a battery terminal electrically connected to the plurality of battery cells and connectable to a terminal of the electrical device.