5708results about "Structural association" patented technology

The invention, which relates to the technical field of the motor, discloses a variable-frequency and variable-speed permanent magnet motor of a stator core heat dissipation structure without a casing, comprising a stator core, an end cover, a motor shaft, a rotor, an axial fan, a heat dissipation channel, a spacer ring, a heat dissipation port, a protective cover, a baffle plate and a mounting seat, the baffle plate is provided with a communication port corresponding to a mounting cavity and the heat dissipation port; the low-temperature shrinkage stress prevention assembly is mounted on the baffle and used for driving the baffle to rotate, so that the opening part of the heat dissipation opening is opened and closed; and the air flow adjusting assembly is arranged on the mounting seat and is used for adjusting the air flow in the heat dissipation channel based on the rotating speed of the motor shaft. According to the invention, the air flow adjusting assembly is used for adjusting the air flow rate in the heat dissipation channel when the rotating speed of the motor shaft changes, so that the air flow rate in the heat dissipation channel is increased when the rotating speed of the motor shaft is reduced, and thus the air flow rate in the heat dissipation channel is relatively high when the rotating speed of the motor shaft is reduced; and therefore, the influence on the gas flowing effect is small.

An electric generator according to the present technology includes a coil element. The coil element includes a magnetic core and two or more windings. The magnetic core causes a magnetic flux change in an axial direction. The two or more windings that are each helically wound around the magnetic core in such a manner that each of the two or more windings is adjacent to the other winding in the axial direction of the magnetic core and are independent windings each capable of being electrically separated from the other winding.

A hard start capacitor replacement unit includes a capacitor container having a cover, a plurality of capacitors received within the container, each of said capacitors having a capacitance value, a common terminal mounted on the cover and electrically connected to a common terminal of each of said plurality of capacitors, a plurality of cover terminals mounted on the cover spaced apart from the common terminal and from each other, each cover terminal respectively electrically connected to one of the plurality of capacitors, a relay having contacts and being capable of opening and closing said contacts in response to a monitored condition of the motor, the relay having relay terminals, a fuse electrically connected to one of the relay terminals by a first wire wherein the fuse electrically disconnects the hard start capacitor replacement unit and the motor upon a failure, and a second wire electrically connecting one of the relay terminals and the motor, a third wire electrically connecting the common terminal and one of the relay terminals, a fourth wire electrically connecting one or more cover terminals to one of the relay terminals, wherein the contacts of the relay close to electrically connect one or more capacitors of the plurality of capacitors to the motor, and the contacts of the relay open to electrically disconnect the one or more capacitors of the plurality of capacitors from the motor.

The invention relates to the technical field of vibration noise optimization, in particular to a vibration noise optimization method and system of an electric drive assembly. The method comprises the following steps of collecting multi-working-condition vibration noise of a transmission motor in an electric drive assembly and performing frequency domain conversion to generate vibration noise frequency domain data; on the basis of the data, carrying out gear meshing stress unbalance loading limit calculation, carrying out tooth surface pitting corrosion cycle ductility simulation, and identifying a bearing clearance expansion increment; optimizing the bearing structure according to the bearing clearance expansion incremental data to obtain bearing structure optimization data; performing tooth direction drum shape modification analysis according to the tooth surface pitting corrosion data to obtain modification data; and finally, carrying out anti-vibration strengthening design by combining bearing optimization and tooth direction modification data, generating structural anti-vibration strengthening design data, and sending the structural anti-vibration strengthening design data to a terminal so as to execute structural optimization and reduce the influence of vibration noise. According to the method, the vibration noise optimization technology is optimized, so that the vibration noise optimization technology is more perfect.

An electric tool includes an electric motor and a battery for supplying electric power to the motor. The battery includes: a battery cell; a control device integrated into the battery cell, the control device comprising an inertial measurement unit and a communication and control module, wherein the inertial measurement unit includes: at least one sensor configured to measure at least one motion parameter of the electric tool, and a controller configured to receive the motion parameter output by the at least one sensor and generate a state indication signal indicating the motion state of the electric tool; the communication and control module comprising: a communication unit configured to communicate with external devices, and a processor configured to receive the state indication signal and generate a switch control signal; a switch network configured to receive the switch control signal generated by the control device and control the power output of the battery based on the switch control signal.

The invention discloses a high-speed motor capable of adaptively adjusting cooling efficiency, and belongs to the technical field of high-speed motors, the high-speed motor comprises a high-speed motor body, an output shaft is mounted in the middle of the high-speed motor body, and a dustproof net cover is fixed on the back of the high-speed motor body; the surface of the high-speed motor body is provided with heat dissipation fins which exchange heat with external air for cooling, the high-speed motor body is provided with a water-cooling cooling part, the high-speed motor body is provided with a temperature sensor, the high-speed motor body is provided with an air-cooling cleaning part, and the air-cooling cleaning part is electrically connected with the temperature sensor. According to the high-speed motor capable of adaptively adjusting the cooling efficiency, impurities and dust attached to the surfaces of the heat dissipation fins can be conveniently cleaned, the normal heat exchange performance of the heat dissipation fins is guaranteed, and meanwhile the cooling efficiency of the heat dissipation structure can be adjusted according to the actual working temperature of the motor.

An electric machine designed as a permanently excited synchronous machine, including a rotor with a rotor body arranged on a rotor shaft, a stator, and a displacement device that generates a relative axial movement between the rotor body and the stator based on a torque produced between the rotor shaft and the rotor body. The displacement device has first and second displacement elements and at least one rolling body arranged between the first and second displacement elements. The first displacement element is axially movable and rotatable to a limited degree on the rotor shaft, and the second displacement element is connected to the rotor shaft rotationally fixed. The displacement elements provide that upon rotation of the first displacement element relative to the second or vice versa, the rotor body is pushed on the rotor shaft axially against the spring force.

The present application provides a reverse-type integrated miniature linear servo electric cylinder. An open end of a rotor housing in a power transmission mechanism is fixedly connected to a planetary carrier by means of a coupling, the planetary carrier is directly driven by means of integration of the motor rotor housing and the planetary carrier, and after power transmission via the planetary carrier, an output end is directly driven to achieve linear motion without adding a gear reduction mechanism to a power transmission system of the electric cylinder, thereby significantly reducing the internal space of the electric cylinder occupied by the power transmission mechanism, allowing the electric cylinder to develop to have a more miniaturized and compact structure, saving costs; moreover, the energy utilization rate of the electric cylinder is improved, the electric energy consumption of the electric cylinder is reduced, and relatively good economic benefits can be yielded.

The invention belongs to the technical field of motors, and relates to a vertical magnetic suspension motor. On the basis of the magnetic bearing control module, the cooling control module and the control evaluation module, closed-loop control of the rotor stably suspending at the target position is achieved, oscillation and steady-state errors are reduced, and the control precision is effectively improved; by dynamically calculating the temperature gradient difference and the cooling power regulation and control value and combining the PID controller and the liquid cooling / air cooling cooperation strategy, on-demand cooling is achieved, the cooling energy consumption is reduced, the temperature balance is improved, and the problems of local overheating or too high energy consumption are avoided; by performing normalized weighted analysis on key parameters such as magnetic bearing energy efficiency and cooling efficiency, feeding back control evaluation coefficients in real time and guiding system parameter optimization, the stability and reliability of long-term operation of the motor are ensured, the failure rate of the motor is reduced, the functional integrity is ensured, and system-level optimization is facilitated.

The utility model discloses a brushless servo motor easy to install and debug, which comprises a shell, a rotor, a stator and an encoder assembly, and is characterized in that the rotor comprises a rotating shaft and a magnetic ring; the shell comprises a shell and a first end cover; the stator comprises a stator core and a winding; the magnetic ring is an M-pole magnetic ring; the encoder assembly comprises a PCB and a magnetic induction device, the magnetic induction device comprises N groups of Hall sensors, and N is 1 or 2; each group of Hall sensors comprises two Hall sensors, and one Hall sensor rotates 90 degrees around the center line of the rotating shaft to reach the position of the other Hall sensor; each Hall sensor is eccentrically arranged relative to the center line of the rotating shaft, and a gap is formed between each Hall sensor and the magnetic ring in the axial direction of the rotating shaft. According to the utility model, the Hall sensor directly senses the magnetic field of the magnetic ring of the rotor to determine the angular position of the rotor, an independent sensing magnet does not need to be arranged on the rotor, the structure is simple, and the installation process is simplified.

There is provided a driving device that provides an exercise load to the user to enable strength exercise, and exercise equipment including the same. A driving device according to one aspect of the present disclosure, which winds a portion of a cable part and provides the cable part with an exercise load against an external force applied to the cable part, may include: a stator disposed on the outer side of a motor shaft in a circumferential direction; a rotor positioned on the outer side of the stator in the circumferential direction to be rotated by the stator, and coupled to the motor shaft to rotate together with the motor shaft; and a rotor sprocket formed along the outer surface of the motor shaft at the end thereof to rotate together with the motor shaft; a bobbin installed to be rotatable around a bobbin shaft and configured to wind a portion of the cable part therearound; and a timing belt connecting the rotor sprocket and the bobbin to transmit the rotation force of the rotor sprocket to the bobbin.

A crane, in particular a rotating tower crane, including a crane boom from which a load-receiving means, such as load hooks, can be raised and lowered by means of a hoist rope. A detection device is provided for detecting the distance of the load-receiving means from the ground and / or from an object located below the load-receiving means.

The invention relates to the technical field of motors, and discloses a high-temperature-resistant direct-current coreless gear motor and a test system, and the system comprises a temperature monitoring module, a current regulation and control module, a heat dissipation optimization module, a load response module, a cloud analysis module and a virtual verification module. By arranging the temperature monitoring module, multi-dimensional temperature data during operation of the motor can be acquired in real time, and a temperature distribution diagram can be generated, so that the system can comprehensively sense the internal thermal state of the motor and accurately identify local overheating risk points, thereby improving the operation reliability and safety of the motor under a high-temperature working condition; through cooperative operation and closed-loop control of the current regulation and control module, the heat dissipation optimization module and the load response module, according to real-time temperature and load changes, driving current parameters and heat dissipation resource distribution can be dynamically adjusted, and the heat dissipation efficiency is improved. And the output performance and the torque stability of the motor under high-temperature and high-load conditions are ensured.

The invention discloses a magnetic suspension motor high-voltage working condition self-adaptive thermal management system and method, and belongs to the field of magnetic suspension motors, and the management method comprises the steps: obtaining input voltage information and first rotating speed information, determining second rotating speed information according to the voltage information, and obtaining a high-voltage working condition self-adaptive thermal management result according to the fluctuation deviation of the first rotating speed information and the second rotating speed information; and determining target rotating speed information and controlling the operation of the magnetic suspension bearing according to the target rotating speed information to improve the stability. The motor further comprises a self-adaptive heat management module which is connected with the temperature sensor and used for collecting temperature data in real time and dynamically adjusting the heat dissipation intensity and mode. The module predicts the temperature change trend according to the thermal power and the temperature-heat dissipation correlation model, and starts or adjusts heat dissipation measures in advance, so that the temperature is maintained in a safe range. The operation stability of the magnetic suspension bearing is improved, real-time monitoring and dynamic management of the temperature of the motor are achieved, temperature rise is effectively controlled, safety and reliability are enhanced, downtime is shortened, the service life is prolonged, and energy efficiency is improved.

The invention relates to the technical field of motor control, in particular to a harmonic gear motor based on double encoders and a control method thereof, which comprises the following steps: processing linear Hall element signals output by a rotor shaft encoder, including high-frequency noise suppression, direct-current bias calibration, amplitude normalization and phase difference calibration, to obtain accurate orthogonal signals; a double-dq rotating coordinate system phase-locked loop algorithm is adopted, the calibrated orthogonal signals are processed, and the high-precision real-time angle of the motor rotor is obtained through calculation; based on a signal of an output shaft encoder, matching with a preset angle partition of the harmonic reducer, and identifying an absolute position sector where the current output shaft is located; the rotor angle and the sector angle of the output shaft are fused to generate a high-resolution absolute angle of the output shaft; and based on the fused angle information, a magnetic field orientation control algorithm is adopted to drive a motor, and closed-loop control is achieved.

The utility model relates to the technical field of driving motors and electric driving systems, in particular to a diversion structure and an eddy current sensor, the diversion structure comprises a shell, a capacitor assembly and a diversion body, the shell is provided with an abdicating channel, and the abdicating channel is used for accommodating a rotating shaft of a motor; the capacitor assembly is fixedly arranged on the shell; the current guiding body is fixedly arranged on the shell and electrically connected with the capacitor assembly, the current guiding body is provided with a current guiding end exposed out of the shell, and the current guiding end is located in the receding channel and used for abutting against a rotating shaft of a motor. The utility model aims to provide a flow guide structure and aims to reduce the occurrence probability of electro-corrosion.

This application discloses a linear motor with an integrated mover and sliding table, which includes a sliding assembly, a base, a magnetic rail, a sliding structure, and a guide rail, the magnetic rail is connected to the base, the sliding assembly is provided with a mover. The base is provided with a first surface facing the sliding assembly, and a recess opening on the first surface, the magnetic rail is filled in the recess, and the magnetic rail is provided with a second surface facing the sliding assembly, which is flush with the first surface; the guide rail is provided on an outer side wall of the base, located on one side of the first surface away from the sliding assembly.

A marine AC generator system includes a marine generator driven by an internal combustion engine and configured to generate an AC current and a rectifier configured to rectify the AC current to provide a DC current. At least one battery is configured to receive and be charged by the DC current. A battery powered inverter is configured to be powered by the at least one battery and to generate a variable current output frequency such that an AC electrical power is provided to a load when the marine generator is not running.

The invention discloses a small generator, and relates to the technical field of generators. The motor comprises a shell, double-end heat dissipation ventilation holes, a permanent magnet shielding rotor and a temperature control torsion limiting protection assembly. The grooves in the periphery of the rotor and the built-in paddles construct through airflow during rotation, so that self-dispersing heat dissipation is realized; coil temperature rise triggers a triode through a thermistor to drive a protection electromagnet, torque transmission of a fluted disc friction coupling is adjusted, and continuous derating can be achieved until zero-coupling shutdown is achieved; the permanent magnet adjusting assembly rapidly cuts off magnetic field output through an iron shell-aluminum strip-permanent magnet combination and an electromagnetic locking mechanism, and it is guaranteed that no induced voltage exists in the overhaul period.

The invention discloses an integrated linear steering engine, which belongs to the technical field of linear steering engines, and comprises a shell, and a motor assembly, a transmission assembly and a sensor which are arranged in the shell, the transmission assembly comprises a multi-stage gear pair, a lead screw pair and an output shaft assembly. The lead screw pair output shaft assembly and the motor assembly are arranged in parallel. The multi-stage gear pair comprises an input gear, a transfer gear and an output gear which are sequentially arranged in a meshed mode, and the input gear is connected with the output end of the motor assembly. The lead screw pair output shaft assembly comprises a lead screw and a nut output shaft. One end of the lead screw is connected with the output gear, the other end of the lead screw is connected with the nut output shaft, and the nut output shaft extends out of the shell to achieve linear output. The sensor comprises a rotary transformer sensor, and the rotary transformer sensor is arranged at the end, away from the output end, of the motor assembly. The size and weight of the steering engine can be greatly reduced, and the steering engine has the advantages of being large in output torque and high in transmission precision.

Disclosed in the present invention is a flywheel structural member having a tactile feeling, comprising a holder and a flywheel that is mounted on the holder by means of a rotating shaft and can freely and axially rotate, wherein with an annular cavity is formed in the flywheel; an annular rotor made of a magnetically attractive metal material is fixedly mounted in the annular cavity; a plurality of slots are formed in the inner annular wall of the annular rotor at intervals; a permanent magnet stator is further fixedly provided on the holder; the permanent magnet stator is arranged in the annular rotor; the end portion of the permanent magnet stator close to the inner wall of the annular rotor is a magnetic pole portion. The present invention can provide an obvious tactile feeling for a user, effectively avoids the problem that the performance and the service life of a product are limited due to electronic components; in particular, the structural design of the present solution is ingenious, the magnetic force of a permanent magnet is utilized to the maximum extent, assembly is convenient, the structure is stable, the same flywheel structural member can be compatible with optical and Hall components, the cost-performance ratio advantage is significant, and the high market competitiveness is achieved.

Provided is an electric power generating element and the like that are easy to appropriately apply a magnetic field to a magnetic body and easy to be manufactured. Electric power generating element (32) includes magnetic body (40) that exhibits a large Barkhausen effect, coil (42) wound around magnetic body (40), first soft magnetic body (44) positioned outside coil (42) in a winding axis line direction in which winding axis line (B) of coil (42) extends and positioned outside magnetic body (40) in a radial direction around winding axis line (B), and filling member (48) that includes a second soft magnetic body and fills a gap between magnetic body (40) and first soft magnetic body (44).

The invention discloses a surgical tool system based on a flexible arm and a minimally invasive surgical robot, the surgical tool system comprises a flexible arm sleeve assembly and a manual driving mechanism, a distal end of the sleeve assembly is provided with a tip, the tip is at least integrated with a surgical tool and an endoscope camera, and the proximal end of the sleeve assembly is connected with the manual driving mechanism; a regulating cable for controlling the tail end of the surgical tool to move is arranged in the sleeve assembly in a penetrating manner, and the near end of the regulating cable is connected with the manual driving mechanism; a rotating module, a push-pull module and a regulation and control cable control module are arranged in the manual driving mechanism, the rotating module is used for achieving overall rotation of the cannula assembly, the push-pull module is used for achieving bending of the far end of the cannula assembly, and the regulation and control cable control module is used for tensioning / loosening a regulation and control cable to achieve opening and closing of the tail end of the surgical tool. According to the minimally invasive surgery robot, the surgical tool can rotate, bend and open and close the tail end under the control of the manual driving mechanism, the minimally invasive surgery operation requirement is met, the minimally invasive surgery robot has multiple degrees of freedom, and the surgical tool can conveniently reach a deeper surgery area.

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 provides a reversing conveying module and a magnetic drive conveying system. According to one embodiment of the invention, the reversing conveying module comprises a bridging stator module which comprises a bridging armature winding communicated with at least two ends; one of the at least two commutation stator modules is arranged on the first side of the bridging stator module, and the other one of the at least two commutation stator modules is arranged on the second side of the bridging stator module; each commutation stator module comprises a first armature winding extending along a first direction and a second armature winding extending along a second direction, and in the first direction, the first armature winding is spliced with the bridging resistor winding. According to the scheme, the conveying direction of the rotor module can be changed without occupying extra space, and the conveying efficiency is high.

The invention belongs to the technical field of motors, and particularly discloses a motor which comprises a rear cover shell, a machine shell, a rotor assembly and a stator assembly, the stator assembly and the rotor assembly are both installed in the machine shell, the rear cover shell is connected with the machine shell, the motor further comprises a PCBA board and a connector, the PCBA board is fixed in the rear cover shell, and the connector is connected with the PCBA board. The connector is fixed on the outer side of the rear cover shell, a connector terminal is installed on the connector, and one end of the connector terminal is pressed on the PCBA board. The integration level of the motor can be improved, and the structure is simplified.

The invention relates to the technical field of camera shooting, and discloses a ball type anti-shake motor and electronic equipment. The ball type anti-shake motor comprises a circuit board arranged on the side wall of a base, a first detection unit comprises a first emitting polar plate and a first receiving polar plate which are arranged on the circuit board, and a first floating polar plate arranged on the side face of a first mover, and the first detection unit is used for detecting the movement condition of the first mover in the focusing direction; the second detection unit comprises a second floating polar plate connected with the first floating polar plate and a second receiving polar plate arranged on the second mover, the second floating polar plate and the second receiving polar plate are oppositely arranged, and the second detection unit is used for detecting the movement condition of the second mover in the shaking direction. An elastic sheet structure is electrically connected with the circuit board, and the elastic sheet structure is used for limiting the second mover in the focusing direction; and the second receiving polar plate is electrically connected with the elastic sheet structure so as to realize the connection between the second detection unit and the circuit board.

The invention relates to the technical field of special equipment for semiconductor devices, and particularly discloses a floating stator damping device and method.The floating stator damping device comprises a driving mechanism and a damping mechanism, the driving mechanism comprises a machine table and a driving linear motor which are slidably connected, and the damping mechanism comprises a damping linear motor slidably connected with the machine table and a damping encoder fixed to the machine table; a rotor of the damping linear motor is connected with a stator of the driving linear motor, and the rotor of the damping linear motor is provided with a damping grating ruler; the damping encoder and the damping grating ruler measure the movement position and speed of the stator of the driving linear motor under the counter-acting force, and the damping linear motor enables the stator of the driving linear motor to move in the direction opposite to the counter-acting force so as to offset the counter-acting force and achieve active damping. By the adoption of the technical scheme, the technical problem that in the prior art, passive vibration isolation is achieved by designing a damping device and a flexible device with fixed parameters, it is difficult to adapt to changes of counter-acting force, and consequently the damping effect is unstable can be solved.

An electric propulsion system for a vertical take-off and landing (VTOL) aircraft having a heat exchanger to cool fluids used in an electrical engine, the electric propulsion system comprising at least one electrical engine mechanically connected directly or indirectly to a fuselage of the VTOL aircraft and electrically connected to an electrical power source. The electrical engine may comprise an electrical motor having a stator and a rotor; a gearbox assembly comprising a sun gear; at least one planetary gear; a ring gear; and a planetary carrier. The electric engine may include an inverter assembly comprising a thermal plate and an inverter assembly housing; an end bell assembly that is connected to the thermal plate of the inverter assembly; and a heat exchanger comprising an array of cooling fins and tubes.