2169results about "Structural association" patented technology

The invention belongs to the technical field of robot and intelligent equipment driving, and discloses an integrated servo push rod and a control method.A push rod module is integrally designed, and a high-density motor, a ball push rod and a band-type brake are arranged in the push rod module. The invention has the characteristics of high power density, small volume, high precision, high response speed, low noise, long service life, high reliability and the like. The inside of the push rod is contacted with the deep groove ball bearing at the tail end of the screw rod through the ball retainer, and the outside is contacted with the oil-free bushing, so that the lateral strength of the push rod is improved, friction is reduced, and operation efficiency is improved. A linear encoder is arranged at the end of the screw rod, accurate control of the tail end can be achieved, a magnetic encoder is arranged at the tail end of the motor, input and output end double-closed-loop can be achieved, precision can be improved, and errors of band-type brake in power-off response time can be compensated; the lead screw is connected with the motor through the diaphragm coupling in the motor, so that the axial space is saved, and the service life of the motor is prolonged.

The invention relates to an electric engine, a power device and an aircraft, and belongs to the technical field of aircraft power equipment.The electric engine comprises a power motor and a liquid cooling flow path arranged in the power motor and comprises a stator support; the heat dissipation system comprises a fan, a radiator and a heat dissipation motor, an outlet of the radiator is connected with an inlet of the liquid cooling flow path, an inlet of the radiator is communicated with an outlet of the liquid cooling flow path, and the fan is used for cooling the radiator and / or the power motor; the motor rear cover is fixedly connected with the stator bracket; and the two direct-current converters are both mounted on the motor rear cover and are both electrically connected with the heat dissipation motor. The two direct-current converters convert high-voltage direct current accessed by the electric engine into low-voltage direct current capable of being used by the heat dissipation motor, and the electricity utilization requirement of the heat dissipation motor is met. Due to the redundancy design of the two direct-current converters, when one path of low-voltage power supply breaks down, the other path of low-voltage power supply can still supply power to the heat dissipation motor in a low-voltage mode, and enough fault handling time can be provided for the whole power supply system.

A vehicle drive system includes a motor that has a cylindrical stator and a cylindrical rotor provided in the stator to be coaxially rotatable with a center axis of the stator and drives a front wheel of a vehicle by rotation of the rotor. The rotor has a cage section and a permanent magnet section provided on an inner circumferential side of the cage section and formed of a rare earth magnet. The vehicle drive system further includes a controller that executes a synchronous operation mode when a temperature of the permanent magnet section is lower than a predetermined temperature, and executes an asynchronous operation mode when the temperature of the permanent magnet section is equal to or higher than the predetermined temperature. In the synchronous operation mode, the rotor is rotated by using a magnetic force of the permanent magnet section.

A robot includes a hand motor configured to independently rotate a first hand and a second hand around a hand axis along a vertical orientation. The hand motor includes: a first output shaft fixed to the first hand; a first stator configured to apply a rotating magnetic field on the first output shaft in the arm link; a second output shaft extending through the first output shaft and fixed to the second hand; a second stator configured to apply a rotating magnetic field on the second output shaft in the arm link; a first bearing held by the arm link and holding the first output shaft or the second output shaft; and a second bearing held by the second output shaft between an outer periphery of the second output shaft and an inner periphery of the first output shaft.

The invention relates to a vertical high-speed motor active and passive vibration reduction system, which comprises a motor body, a motor base, a controller, a vibration sensor and an integrated active and passive pneumatic damping actuator, and is characterized in that the actuator is arranged between the motor body and the motor base; the vibration sensor is in signal connection with the motor body; the input end of the controller is in signal connection with the vibration sensor, and the output end of the controller is in signal connection with the high-speed switch pneumatic servo valve. According to the vertical high-speed motor active and passive vibration reduction system and vibration reduction method, a controller, a high-speed switch pneumatic servo valve and other components form an active damping system; and the damping pore plate and the auxiliary air chamber jointly form a built-in passive damping system. The passive damping system processes broadband vibration, and active control burden is reduced; and the active damping system achieves accurate suppression, and the overall energy efficiency ratio is increased. The active damping system and the passive damping system work in cooperation to jointly solve the vibration problem, so that the vibration problem of the vertical high-speed motor is rapidly and effectively suppressed.

The present disclosure relates to a stepper motor. The stepper motor according to embodiments of the present disclosure includes: a rotor assembly including a rotatory shaft and a plurality of magnetic steel units sequentially assembled along circumference of the rotatory shaft, inner walls of the plurality of magnetic steel units are in contact with an outer wall of the rotatory shaft, and the plurality of magnetic steel units are assembled to form a magnetic steel; at least one stator assembly sleeved on the rotor assembly; and two support assemblies each include a respective bearing sleeved on the rotatory shaft. The rotatory shaft includes a main body connected to the magnetic steel and two end portions, respective bearings are sleeved on the two end portions respectively, and a diameter of the main body is smaller than diameters of the two end portions.

The embodiments of the present invention are directed to providing a diaphragm module, and a camera module including the same, capable of reducing magnetic interference between an AF magnet and a ring magnet. In addition, according to the embodiments, the arrangement of coils included in the diaphragm module can be diversified.

Provided is a motor that is able to properly detect a temperature of a high-temperature position of a wire coil and can be assembled easily.A motor 1 includes: a stator 3; a rotor 2, rotatably installed; an insulator 11, installed to the stator 3, and having a cylindrical shape which exhibits an insulating property and in which wire winding parts 11d are arranged in a peripheral direction; wire coils 12, formed by winding wires 12a about the respective wire winding parts 11d of the insulator 11; and a temperature detection sensor 13, detecting a temperature of the wire coil 12. An opening part 15e for bringing the temperature detection sensor 13 into contact with the wire coil 12 is provided on an outer peripheral side of at least one wire winding part 11d. The opening part 15e is formed along a lamination direction of the wire coil 12.

The utility model discloses a dual-motor synchronous rotation winding mechanism, and belongs to the technical field of winding equipment. Comprising a winding mechanism and an adjusting mechanism, the winding mechanism comprises a workbench, the workbench is in a U shape, a vertical plate is installed at the center of the top face of the workbench, a fixing plate is installed on the top face of the vertical plate, a pair of winding pieces are arranged on the bottom face of the fixing plate, a pair of first driving pieces are installed on the top face of the fixing plate, and the pair of first driving pieces drive the pair of winding pieces to rotate correspondingly; a second driving piece is installed in the workbench and drives the vertical plate to ascend and descend. The adjusting mechanism comprises a fixing table, the fixing table is installed in the groove of the workbench, rotating discs are arranged on the two sides of the fixing table, third driving pieces are installed on the two sides of the fixing table, the third driving pieces drive the rotating discs to move transversely, and the rotating discs are located on the top face of the workbench.

A protective device that includes a thermal fuse and a metal oxide varistor (MOV) fuse positioned in series downstream of a main breaker, wherein a transformer's primary windings are positioned upstream from the MOV fuse and downstream of the thermal fuse.

The invention discloses a constant-force floating grinding device based on magnetoelastic cooperative driving and a control method thereof. The constant-force floating grinding device comprises a rigid connecting assembly; the elastic guide unit is connected between the upper connecting assembly and the lower connecting assembly and comprises a plurality of groups of reset springs and guide rods which are symmetrically distributed; the electromagnetic repulsive force structure comprises a stator electromagnet and a rotor electromagnet which are coaxially and symmetrically arranged, and the polarities of the stator electromagnet and the rotor electromagnet are configured to repel each other so as to generate adjustable dynamic compensation repulsive force; the force sensor is connected to a force transmission path in series and is used for detecting grinding force; the Hall displacement sensor is used for detecting a non-contact floating air gap of the size of the air gap; the temperature sensor is embedded in a coil winding of the rotor electromagnet; and a control unit. The elastic guide unit bears most static loads, the electromagnet only needs to work in a low-power-consumption area for high-frequency fine adjustment, compared with a pure electromagnetic scheme, energy consumption is remarkably reduced, the problems of power consumption and heating are solved, and meanwhile the characteristics of fast response and high precision of electromagnetic drive are considered.

The invention discloses a telescopic seatpost system comprising means to lock the position of the seat (S) in predefined positions in response to the pulsation of a button by the cyclist, without the need for the cyclist to keep said button (41) pushed during the time the telescopic mechanism (2) supporting the seat (S) is compressing or extending.

To provide a technology for detecting the temperature of a coil capable of easily fixing a temperature detector such as a thermistor used for detecting the temperature of the coil, capable of reducing the dispersion of a measured temperature, and capable of accurately measuring the temperature change of the coil with excellent responsiveness without interposing another member between the coil being a heating element and the temperature detector.SOLUTION: The insulating cap 10 with the groove for fixing the temperature detector is provided with a housing part 2 for housing the temperature detector D for detecting the coil temperature to be inserted from the outside on its inner wall surface, and the housing part 2 is formed so that at least a part of the temperature detector such as a thermocouple or a thermistor to be inserted is brought into contact with the coil C.SELECTED DRAWING: Figure 1-2

A powertrain includes a reservoir configured to store coolant; a first drive motor, where the first drive motor includes a first stator and a first rotor; a second drive motor, where the second drive motor includes a second stator and a second rotor; a first pump and a second pump, where an inlet of the first pump is coupled to the reservoir, and an inlet of the second pump is coupled to the reservoir; a heat exchanger, where the heat exchanger is coupled to the first pump; a first flow path, where the first flow path is coupled to an outlet of the first pump, and the first flow path is used to supply the coolant to the first stator and the second stator through the heat exchanger.

The embodiment of the invention discloses a hollow, double-braided and integrated robot joint module with high torque density, and relates to the technical field of frameless torque motors and robot integrated joints. The joint module comprises a planetary reducer, a hollow shaft, a composite Halbach structure frameless torque motor and the like. According to the composite Halbach structure frameless torque motor, through the distribution design of the main magnet and the auxiliary magnet in the steel ring magnetic group and the ferromagnetic design arranged on the main magnet and / or the auxiliary magnet, the effect of increasing the rotating speed and the torque of the shutdown module is achieved. The air cooling design of a variable-torsion-angle structure is adopted for the joint module, so that the temperature rise of the joint module during working can be effectively reduced; the hollow design of the joint module facilitates wiring planning and management in subsequent integration of the joint; the joint module adopts a magnetic double-braided design, has the function of synchronously detecting the rotation angles and the rotation speeds of an input end motor and an output end planetary reducer, and improves the joint transmission precision through position synchronization and speed synchronization.

The invention discloses a galvanometer motor and a laser radar. The galvanometer motor comprises a stator assembly, a rotor assembly, a control circuit board, a galvanometer clamp, a galvanometer piece and an angle sensing assembly, the stator assembly comprises a first shell, a second shell and a stator winding fixed in the first shell, the rotor assembly comprises a rotating shaft and a magnetic core, and the angle sensing assembly comprises a fan-shaped magnet and a magnetic encoder; the second shell comprises a mounting part and a containing part, the mounting part is embedded in the first shell, the containing part and the control circuit board define a containing cavity, and the magnetic encoder is located in the containing cavity; the galvanometer clamp comprises a connecting part and a bearing part, the first end of the rotating shaft is located in the first shell, the second end of the rotating shaft is fixedly connected with the connecting part, the fan-shaped magnet is fixedly connected with the connecting part, the control circuit board is located on the first side of the bearing part, and the galvanometer piece is located on the second side of the bearing part. The above structure can effectively reduce the axial size of the galvanometer motor, and facilitates the realization of the miniaturization of a laser radar.

An electrical combination, a tool system, an electric motor, a battery pack, and operating and manufacturing methods. The tool may include a tool housing, a motor supported by the tool housing, the motor having a nominal outer diameter of up to about 80 millimeters (mm), the motor being operable to output at least about 2760 watts (W), and a tool terminal electrically connected to the motor; a battery pack including a pack housing defining a volume of the battery pack, the volume being up to about 5.2×106 cubic millimeters (mm3), battery cells supported by the pack housing, the battery cells being electrically connected and having a nominal voltage of up to about 80 volts (V), and a pack terminal electrically connectable to the tool terminal to transfer current between the battery pack and the tool; and a controller operable to control the transfer of current.

The invention provides a servo motor and a semiconductor device. The servo motor includes a motor and an encoder. A shell of the motor is provided with a first vent hole. A stator of the motor is arranged in the shell. A rotating shaft of the motor is arranged in the shell and rotates under the electromagnetic action of the stator. The rotating shaft is partially hollow and is provided with a second vent hole for air to circulate in the first vent hole and the second vent hole. The encoder is arranged in the shell, detects rotation information of the motor and encodes the rotation information into a signal. And the accuracy and the service life of the encoder are maintained by the independent sealed space. In addition, the vent hole of the motor can be connected with a vacuumizing device to generate a negative pressure adsorption effect.

The utility model provides a rotor shaft and encoder mounting structure of a motor, which comprises a motor casing, a motor rotating shaft, a brake protective cover and a motor encoder, the motor rotating shaft, the brake protective cover and the motor encoder are arranged on the motor casing, the brake protective cover is fixed at the rear end of the motor casing, and the motor rotating shaft is rotatably arranged in the motor casing. The rear end of the motor rotating shaft extends into the brake protective cover, a stator of the motor encoder is fixed in the brake protective cover, a rotor of the motor encoder is located at the rear end of the motor rotating shaft, and the motor rotating shaft and the rotor of the motor encoder are detachably and fixedly connected through an encoder adaptive shaft. And the rear end of the encoder adapter shaft is inserted into a rotor center hole of the motor encoder and is matched with the rotor center hole of the motor encoder in shape. The device has good adaptability to a motor rotating shaft, is convenient to disassemble and assemble quickly, and is compatible with encoders of multiple specifications.

The invention provides a temperature control self-adjustment electric actuator, belongs to the technical field of actuators, and solves the technical problems that an existing actuator cannot perform temperature self-adjustment and is poor in heat dissipation effect and the like. Comprising an upper shell and a lower shell, the upper shell and the lower shell are spliced to form an actuator shell, a transmission assembly and a driving motor are arranged in the actuator shell, a temperature sensor is arranged on the driving motor, the end of the transmission assembly extends out of the front side end face of the actuator shell, and a heat dissipation assembly arranged in the left-right direction is arranged in the actuator shell; and a power connection end seat is clamped between the upper shell and the lower shell. According to the invention, stable output can be achieved, it is ensured that the actuator has reliable dynamic response capability, guiding and pre-positioning can be carried out, wrong installation is prevented, alignment is ensured, pressing force is applied in cooperation with a sealing screw pair, clamping surfaces are tightly attached, it is ensured that the structure of the actuator is stable, the opening degree of a shutter and the size of the air outlet cross section of an air collecting cover can be synchronously adjusted, and temperature self-adjustment is achieved.

An electronic device includes a first housing, a second housing slidably coupled to the first housing, a rollable display configured to be enlarged or reduced based on a movement of the second housing, a rack gear disposed on the second housing, a pinion gear driven in engagement with the rack gear and including a plurality of teeth, an actuator configured to rotate the pinion gear and coupled with the pinion gear by a shaft, a first magnet surrounding at least part of the shaft, and spaced apart from the pinion gear along the shaft, and a hall sensor spaced apart from the pinion gear in direction perpendicular to the shaft, and a processor, wherein the processor is configured to obtain data related to a change in the magnetic force using the hall sensor and identify a rotating angle of the pinion gear based on the data related to a change in the magnetic force.

The present technology relates to a motor apparatus with an encoder or a rotation system. In an embodiment, the apparatus includes a housing including a first opening positioned on a first side. A motor including a shaft is positioned inside the housing. The shaft includes a first portion extending through the first opening. The apparatus further includes a code disc and an encoder. The encoder includes a second opening. The first portion of the shaft extends through the second opening. By extending the shaft through the encoder, the apparatus allows for two-sided functionality, enabling both ends of the shaft to be used to drive a load or to be connected to other components. This configuration enhances the spatial efficiency and versatility of the motor apparatus, making it ideal for a variety of compact applications.

An actuator that includes a motor and a speed reducer, the actuator includes a contact unit including a plurality of contact members, in which during an operation of the actuator, the contact members adjacent to each other come into contact with each other with relative movement, a plurality of energization members provided separately from the contact unit and configured to cause an electric current to flow through an energization path configured to include a plurality of actuator constituent members via a contact location between the plurality of contact members, and a measurement unit configured to measure a lubrication state between the plurality of contact members in the contact unit by causing the electric current to flow through the energization path.

To provide a wound-field rotary electric machine that can achieve appropriate rotation in a rotor that integrally rotates with a circuit module.SOLUTION: A wound-field rotary electric machine has a stator that has a stator winding, and a rotor that has field windings wound individually around main pole parts of a rotor core, and a harmonic current for inducing a field current in the field windings is caused to flow in the stator winding. The rotor has a circuit module that is connected with the field windings and forms a resonance circuit with the field windings, and a coil end cover 103 that covers coil end parts of the field windings. The coil end cover 103 is a balance adjustment member that adjusts the weight balance in a circumferential direction of the rotor, and has an adjustment part in at least part in the circumferential direction where the weight is reduced or increased.SELECTED DRAWING: Figure 16

The invention relates to an electric motor, having a stator and a rotor shaft rotatably mounted relative to the stator, as well as a protective cover and an angle sensor for detecting the rotational position of the rotor shaft, wherein a support part is attached to the protective cover, to which a sensor plug housing of the angle sensor is connected in a rotationally fixed manner, wherein the support part has a yoke region, a first leg region, a second leg region and lug regions, wherein the lug regions are adjacent to the respective end regions of the first leg region, the second leg region and the yoke region, wherein a press-in nut is pressed into each of the lug regions.

The invention relates to an inductively excited synchronous machine (1) with a stator (2), with a rotor (3) rotatably mounted on the stator (2) about an axis of rotation (4), with a rotary transformer (5) having a stator-fixed primary coil (6) and a rotor-fixed secondary coil (7), and with a rotor-fixed rectifier (8), wherein the rotor (3) has a rotor shaft (9), a rotor lamination stack (10) arranged on the rotor shaft (9) and a rotor winding (11) arranged on the rotor lamination stack (10), and wherein the rotor winding (11) has a winding head (14, 15) projecting axially beyond the rotor lamination stack (10) and spaced radially apart from the rotor shaft (9) at each axial end face (12, 13) of the rotor lamination stack (10). A compact design can be achieved if the rotor (3) has a winding carrier (16, 17) on each axial end face (12, 13) of the rotor lamination stack (10), which rests axially on the rotor lamination stack (10) and on which the respective winding head (14, 15) rests axially and radially on the outside, and if one of the winding carriers (16, 17) has a rectifier receptacle (18) in which the rectifier (8) is arranged.

Various technologies and embodiments are presented to operate a two-phase machine. The two-phase machine is powered by a first phase circuit comprising a first string of battery cell devices electrically coupled to the machine via a first supply line and a first return line, and a second phase circuit comprising a second string of battery cell devices electrically coupled to the machine via a second supply line and a second return line. One or more processors can be configured to control operation of one or more switches in the first and second strings of battery cell devices, such that a first voltage provided by the first string of battery cell devices is 90° out of phase relative to a second voltage provided by the second string of battery cell devices. The two-phase machine can be a motor comprising a stator with a two-phase winding pattern.

The application provides an intelligent explosion-proof motor system based on multi-modal temperature sensing and double-loop heat dissipation, and belongs to the field of explosion-proof motors.The system comprises a temperature sensing module, a temperature prediction module, an event classification module, a double-loop heat dissipation control module and a safety protection module.The temperature sensing module is used for acquiring multi-modal sensing data of each monitoring point in real time and processing the data to obtain the fusion temperature of each monitoring point.The temperature prediction module is used for predicting the temperature trend according to the fusion temperature.The event classification module is used for classifying the event level according to the fusion temperature and the predicted temperature, and determining the temperature control event level.The double-loop heat dissipation control module is used for intelligently switching the working state of the heat dissipation loop according to the temperature control event level.The safety protection module is used for continuously monitoring the effect of the double-loop heat dissipation control module, and stopping the explosion-proof motor and starting the emergency heat dissipation protection when the safety protection condition is triggered.The application realizes the reasonable configuration of the overall heat dissipation resources of the explosion-proof motor, improves the heat dissipation effect, and reduces the energy consumption of the explosion-proof motor.

A rotary alternating stroke drive actuator (1) comprises: a shaft section (15) to one end section (152) of which a magnet (32) is attached and to the other end section (154) of which a movable body (10) is connected; a drive unit (4) comprising: a core assembly (40) with a plurality of magnetic poles opposite an outer circumference of the magnet (32), wherein a coil (44) is provided, as well as a bottom cover (50) and a top cover (60) arranged to enclose the core assembly (40) axially and to support the shaft section (15) which is inserted into a bearing (24, 26) which is contained in the bottom cover (50) and the top cover (60), respectively, wherein the shaft section (15) is rotatably supported, the other end section (154) of the shaft section (15) projecting from the bottom cover (50); and a basic part (21) comprising: a first wall section (211),The base part (21) fixes the drive unit (4) in a state in which the other end section (154) of the shaft section (15) passes through the first wall section (211), and a second wall section (212) is spaced apart from and opposite the first wall section (211), with the movable body (10) being arranged between the first wall section (211) and the second wall section (212). The base part (21) is designed such that it supports the shaft section (15) and a projecting shaft section (14) in such a way that the shaft section (15) and the projecting shaft section (14) can perform a reciprocating rotation, with the projecting shaft section (14) projecting from the movable body (10) and passing through a wall bearing (22) of the second wall section (212). The drive unit (4) comprises a pair of preload springs (82, 84),which are each arranged on the outer circumference of the shaft section (15) between the magnet (32) and the corresponding bearing (24, 26) and exert a preload force on the respective bearing (24, 26) as well as on the wall bearing (22).

The application discloses a slewing power unit and a robot. The slewing power unit comprises a primary planetary gear and a secondary planetary gear. The primary planetary gear comprises a primary sun gear, a primary planet gear, a primary planet carrier and a primary inner ring gear. The primary sun gear is rotationally installed on the primary inner ring gear. The primary planet gear is engaged between the primary sun gear and the primary inner ring gear. The primary inner ring gear is fixedly installed on a first shell. The secondary planetary gear comprises a secondary sun gear, a secondary planet gear, a secondary planet carrier and a secondary inner ring gear. The secondary sun gear is rotationally installed on the secondary planet carrier. The primary planet carrier is fixedly installed on the secondary sun gear, so that the primary planet carrier synchronously rotates with the secondary sun gear. The secondary planet gear is engaged between the secondary sun gear and the secondary inner ring gear. The secondary inner ring gear is fixedly installed on a second shell. The first shell and the second shell are fixed. The first shell is integrally formed with the primary inner ring gear. The second shell is integrally formed with the secondary inner ring gear.