60 results about "Motor circuit" patented technology

A handheld fan is provided, including a housing body. The housing body includes a hand grip portion, an air duct portion is disposed in the housing body, a motor is disposed in the air duct portion, a motor circuit board is disposed on the motor, and the motor circuit board is electrically connected to the motor. A control circuit board and a battery are further disposed in the housing body, the control circuit board is electrically connected to the motor circuit board, and the control circuit board is electrically connected to the battery. According to the above structural configuration of the handheld fan, the motor circuit board and control circuit board are separately disposed in the housing body, so that heat generated by the motor circuit board and control circuit board is distributed across distinct components. Additionally, the motor circuit board is independently disposed on the motor.

The utility model relates to a device for preventing empty percussion of a surgical instrument, which comprises an anastomat body and a nail abutting seat assembly arranged at a front end opening of the anastomat body, the nail abutting seat assembly comprises an anvil head used for forming anastomosis nails and a connecting shaft sleeve arranged on the rear side of the anvil head, an infrared detection device is arranged in the anastomat body, and the connecting shaft sleeve is arranged on the rear side of the anvil head. The infrared detection device is connected with a control circuit of the anastomat body, an infrared transceiver is arranged on the infrared detection device, and when the infrared transceiver receives reflected infrared rays, the control circuit disconnects the drive motor circuit; and when the infrared transceiver cannot receive the reflected infrared rays, the control circuit closes the driving motor circuit. The electric anastomat has the advantages that the coating capable of absorbing infrared rays is arranged on the outer wall of the connecting shaft sleeve, the light source of the infrared transceiver and the signal receiver are arranged in the anastomat body, whether the anvil block head is installed in place or not can be detected under the condition that the strength and the function of the structure are not affected, and mistaken percussion operation of the electric anastomat is prevented.

The invention relates to a welding control method and system for a motor circuit board of an energy-saving freezer with a stator, and relates to the field of welding technology.The method comprises the steps that a stator image is obtained in response to a preset welding signal; determining a stator category according to the stator image; searching a corresponding welding temperature and a welding scheme according to the stator category; sorting the stators corresponding to the stator categories based on the welding temperature to obtain a stator sequence; sequentially obtaining welding stator types according to the stator sequence; and controlling a stator corresponding to the welding stator category to execute a welding scheme to obtain a welding finished product. The stator welding device has the effect of improving the stator welding efficiency.

The present application provides an electric working machine and a method of assembling a driving unit for driving a motor of the electric working machine. One aspect of the present application relates to an electric working machine including a motor, a circuit board, a first semiconductor switch, and a first metal plate. The motor is driven by receiving electric power from a power source. The first semiconductor switch is on the circuit board, has a first metal surface and a first mounting surface, and is electrically connected to the power source and the motor. The first mounting surface is on an opposite side of the first metal surface and faces the circuit board. The first metal plate has a first plate surface that is brazed to the first metal surface and a second plate surface on an opposite side of the first plate surface.

The present application provides an electric working machine, and a method of assembling a drive unit for driving a motor of the electric working machine, one aspect of which relates to an electric working machine provided with a motor, a circuit substrate, a first semiconductor switch, a second semiconductor switch, a first conductive line, a second conductive line, and a solid metal member. The circuit substrate has a first circuit surface, a second circuit surface, and a through hole. The first semiconductor switch is mounted on the first circuit surface and has a first terminal. The second semiconductor switch is mounted on the second circuit surface and has a second terminal. The first conductive line is disposed on the first circuit surface and electrically connected to the first terminal. The second conductive line is disposed on the second circuit surface and electrically connected to the second terminal. The solid metal member is inserted into the through hole and electrically connected to the first conductive line and the second conductive line.

The utility model relates to the technical field of motors, and particularly discloses a motor based on a Hall sensor and a trigger, which is rigorous and scientific in design, reasonable in hardware structure and configuration and simple in circuit, saves I / O (Input / Output) port resources of an MCU (Microprogrammed Control Unit), and comprises the MCU, a stepping motor, a stepping motor controller and the Hall sensor. A Hall sensor is arranged in a transmission mechanism of the stepping motor, the MCU is in circuit connection with the stepping motor controller, the stepping motor controller is in circuit connection with the stepping motor, the stepping motor is in electric signal connection with the Hall sensor, the Hall sensor is connected with the MCU, and the MCU is connected with the MCU. A corresponding method is adopted to effectively control the motor in real time, the failure rate is low, the function is safe and reliable, and the working efficiency is high.

The present disclosure relates to a thermal management system for an electric motorcycle, comprising a base plate, a motor thermal management loop, a battery thermal management loop and an electrical circuit, the motor thermal management loop comprising a motor of the electric motorcycle and a motor circuit, the motor circuit being in fluid connection with the motor and comprising a first fluid for cooling and / or heating the motor, the battery thermal management loop comprising a battery of the electric motorcycle and a battery circuit, the battery circuit being in fluid connection with the battery and comprising a second fluid for cooling and / or heating the battery, the motor circuit, the battery circuit and the electrical circuit all being located on the base plate. The present disclosure also relates to a thermal management module for an electric motorcycle and an electric vehicle. The thermal management system and the thermal management module according to the present disclosure can realize integrated thermal management for the electric motorcycle, which can simplify the installation of the thermal management system and improve the internal space utilization and thermal management effect of the electric motorcycle.

This application provides a motor load adaptive adjustment method based on analog circuits, relating to the field of motor control technology, including the following steps: converting the load current in the motor circuit into a first voltage signal, and generating a mode selection signal based on the amplitude and rate of change of the signal; wherein, when the amplitude of the first voltage signal exceeds a first threshold and its rate of change exceeds a second threshold, the mode selection signal indicates a dynamic response mode; otherwise, the mode selection signal indicates a steady-state adjustment mode; when the indication is a steady-state adjustment mode, the first voltage signal is introduced into a first path, which includes a first error amplifier with a first proportional coefficient; when the indication is a dynamic response mode, the first voltage signal is introduced into a second path, which includes a second error amplifier with a second proportional coefficient greater than the first proportional coefficient; generating and outputting a motor drive signal according to the adjustment signal output from the selected path.

This application provides an integrated thermal management system, control method, and vehicle. The system includes a five-way valve integrated module, a motor circuit, a battery circuit, a heating circuit, and a controller. The five-way valve integrated module integrates a five-way valve and three water pumps. The controller generates control commands based on a thermal management mode, which control the connection status between the five-way valve integrated module and the motor circuit and battery circuit. The three water pumps are connected in series with the battery circuit, heating circuit, and motor circuit, respectively. The five-way valve, according to the control commands, controls the drive mechanism to rotate the valve core, connecting at least two of the five interface pipes to the target interface pipes, thereby connecting the ports of the target circuits connected to the at least two target interface pipes to form a thermal management circuit corresponding to the thermal management mode. This application improves component integration and reduces the number of connecting pipes and control motors.

The application discloses a motor PCB stator with a heat dissipation function, which comprises a PCB stator body and a heat exchange mechanism, the heat exchange mechanism comprises an empty ring, the outer surface of the empty ring is movably connected with the outer surface of the PCB stator body, a flat pipe is in communication with the inside of the empty ring, a circular ring is fixedly connected with the outer surface of the flat pipe, an arc strip is fixedly connected with the outer surface of the circular ring, a connecting pipe is in communication with the inside of the flat pipe, one end of the connecting pipe penetrates the bodies of the circular ring and the arc strip in sequence and extends to the inside of the arc strip, and the body of the arc strip is provided with a penetrating air outlet, and relates to the technical field of motors, solves the problems of the heat dissipation measures of the existing PCB stator, influences winding arrangement, and thus easily influences the production and use of the PCB stator, meanwhile, the use of liquid cooling medium easily causes liquid leakage to influence the safety of motor circuits, and the heat dissipation area and range of the whole heat conduction through hole are small, thereby causing the actual heat dissipation efficiency to be low.

The application provides a mechanical part electromagnetic treatment device for metal materials, which comprises a conveying belt mechanism, a control part fixedly connected to the rear side of the conveying belt mechanism, four groups of support parts fixedly connected to the bottom of the conveying belt mechanism, a stepping motor arranged on the front side of the right end of the conveying belt mechanism, a stepping motor circuit coupled with the control part circuit, bearing part fixing structures arranged on the surface of the conveying belt mechanism, and rotating bearing seats in the bearing part fixing structures, and a part self-rotation mechanism arranged at the rear end of the conveying belt mechanism. The automatic electromagnetic induction quenching processing of the multiple groups of parts in the transportation process is facilitated through the linkage and cooperation of the conveying belt mechanism, the reciprocating lead screw and the part self-rotation mechanism, manual close-range feeding is not needed, the safety is improved, and the work efficiency is greatly improved.

The utility model provides an intelligent lock motor box which comprises a panel, a box body and a reduction gearbox cover, the design that the panel and a gearbox are integrated is adopted, a speed reducing mechanism of a reduction gearbox can enable an intelligent lock to increase torsion, the effect of large torsion can be achieved through a small motor, and therefore the motor box is small in size and convenient to use. Structures such as a motor circuit are integrated and placed in the motor box, the integration level is high, and installation is convenient; the panel is a highlight panel, the sense of science and technology is high, and the overall appearance is simple and attractive.

The utility model discloses an automatic protection cover relates to charging pile protection technical field, including two stand and folding tent, the upper end of stand rotatable installation can fold cross bar, and folding tent is connected between two cross bars through drawstring, support rod, support rod can fold, and the both ends of support rod are rotatablely connected in the lateral wall of stand and the one end of cross bar away from stand, and the upper end of stand is fixedly installed for sensing weather sensing device, and the lateral wall of stand is installed two motor for driving cross bar and support rod rotation, and sensing device and motor circuit connection, and sensing device senses humid weather after drive motor, and drives cross bar and support rod to rotate support folding tent, makes folding tent unroll, and the charging pile is shaded when the rainy and snowy day, and when the fine day, folding tent is taken in, and the solar panel on the guarantee charging pile contacts sunlight, solved the existing for protecting the awning of charging pile and will shade sunlight, and the problem of influence solar panel use.

This utility model discloses a single-cell lithium battery protection circuit, including a lithium battery charging circuit, a lithium battery protection control circuit, a battery detection circuit, a programming port circuit, a button indicator light interface circuit, a charging detection circuit, a DC brushed motor circuit, and a gyroscope circuit. The lithium battery charging circuit includes connector CN1, diode D2, capacitor C4, resistor R2, resistor R3, capacitor C5, and integrated circuit U2. The lithium battery protection control circuit includes integrated circuit U3, resistor R4, capacitor C6, connector CN3, connector CN2, and resistor R5. This utility model's single-cell lithium battery protection circuit, by setting up a charging detection circuit and a battery detection circuit, evaluates the lifespan of a single-cell lithium battery in real time based on the voltage, current, and internal resistance parameters under different conditions, and provides warnings through the button indicator light interface circuit, facilitating timely maintenance of the single-cell lithium battery and extending its lifespan.

This utility model belongs to the field of vehicle technology, specifically relating to a charging dock with a locking rod heating function. The charging dock includes: a housing for mounting a connector, with a through hole in the housing; and an electronic lock mounted on the side wall of the housing, comprising: a locking rod, the outer end of which is located within the through hole; and a heating module disposed at the locking rod. This charging dock with a locking rod heating function heats ice at the locking rod by using the heating module, thereby loosening the locking rod from the ice and facilitating its retraction. The heating module can be disposed between the housing and the flange of the housing to heat the ice within the through hole; the heating module can also be disposed within the through hole to directly heat the locking rod; or the heating module can be disposed within the electronic lock, powered by the electronic lock's motor circuit, to generate heat synchronously when the motor is operating.

The utility model discloses a double hall lifter motor circuit, its characterized in that: including power supply interface VCC, ground connection GND, hall element Q1, hall element Q2, output interface S1 and output interface S2, hall element Q1 with hall element Q2's VCC end is connected power supply interface VCC through first line, and hall element Q1 with hall element Q2's GND end is connected ground connection GND through second line, and hall element Q1's output is connected output interface S1 through third line, and hall element Q2's output is connected output interface S2 through fourth line, the utility model discloses adopts double hall element setting, guarantees the stable output of inductive signal.

The utility model relates to the technical field of filtering equipment, and discloses an electronic component protection cover which comprises a machine shell and a machine cover, a rotor is rotatably connected between the machine shell and the machine cover, a stator winding is fixedly installed in the machine shell, a motor circuit board is arranged between the machine shell and the machine cover, and the motor circuit board is connected with the rotor. A waterproof protection cover assembly and a heat dissipation assembly are arranged among the machine shell, the machine cover and the motor circuit board. According to the utility model, the waterproof protection cover assembly is arranged, specifically, the motor circuit board is arranged in the waterproof shell, the motor circuit board is matched with the waterproof shell through the clamping groove formed in the machine cover, the sealing ring is additionally arranged, and the motor circuit board is sealed in the waterproof shell, so that the waterproof protection performance of electronic elements of the motor circuit board is greatly improved; according to the heat dissipation assembly, heat of the motor circuit board is conducted to heat dissipation fins installed on a supporting heat conduction plate through heat conduction silica gel, heat dissipation is conducted through a heat dissipation fan, and the heat dissipation effect is improved.

The present application provides an electric working machine and a method of assembling a driving unit for driving a motor of the electric working machine. One aspect of the present application relates to an electric working machine including a motor, a circuit board, a first semiconductor switch, a metal plate, a heat dissipation member, and an externally threaded member. The first semiconductor switch is on a first circuit surface of the circuit board, has a first metal surface and a first mounting surface, and is electrically connected to a power source and the motor. The first mounting surface is on an opposite side of the first metal surface and faces the first circuit surface. The metal plate has a first plate surface that is joined to the first metal surface and a second plate surface that is on an opposite side of the first plate surface. The heat dissipation member directly or indirectly contacts the second plate surface. The externally threaded member fastens the heat dissipation member and the metal plate.

The present invention is relative to a thermal machine (100), operating with a thermal fluid for realizing a thermodynamic cycle, comprising a power unit (1) and a motor circuit (10). The power unit comprises a first operating chamber (3A) and a second operating chamber (3B), housing power transformation organs connected with each other by means of a drive shaft (8). The thermal machine comprises also a lubrication branch (50), operatively active on a casing (2) of the power unit and configured for being affected by a first flow of the thermodynamic fluid for lubricating at least the drive shaft.

The invention discloses a motor circuit board pin trimming device which comprises a rack, a conveying table arranged on the rack and a trimming table arranged on the rack, the trimming table is provided with scissor pliers and a pin collecting assembly connected with the scissor pliers, the plier head of the scissor pliers is provided with a plurality of stepped knife edges, and the pin collecting assembly is connected with the scissor pliers. The plurality of stepped knife edges and the working surface of the plier head are distributed in an equal difference manner, and a pin guide assembly is further arranged between every two adjacent stepped knife edges. The ladder-shaped knife edges are distributed on the working face of the plier head in an equal-difference mode, and the knife edges with different heights are arranged, so that an operator can quickly select appropriate knife edge ladders according to the preset pin shearing height. It is ensured that the length of the sheared pin strictly meets the technical requirement of electric fitting, and the deviation of too long or too short pin is avoided. And 2, the pin collecting assembly automatically collects the sheared pin waste, so that the influence on subsequent operation or pollution caused by scrap accumulation is avoided, and the operation efficiency and the cleanliness are improved.

The utility model provides a refrigerator refrigerating chamber circulating fan motor which comprises a support, a motor body is installed on one side of the support, a motor circuit board is installed on one side of the motor body, an impeller is installed on the other side of the motor body, and a water retaining ring is installed on one side of the support. The impeller is provided with a butt joint portion in butt joint with the water retaining ring, the butt joint portion is an annular groove formed in one side of the impeller, one end of the water retaining ring is arranged in the butt joint portion, the depth of the portion, inserted into the butt joint portion, of the water retaining ring ranges from 1 mm to 1.6 mm, and the radial gap between the water retaining ring and the impeller ranges from 0.25 mm to 0.5 mm. According to the utility model, when the condensate water drips along the gap between the support and the impeller, the condensate water is blocked by the water retaining ring and cannot directly drip on the motor circuit board, and when the condensate water is too much, accumulated water accumulated in the gap between the impeller and the water retaining plate can be thrown out by the rotating impeller, so that the condensate water is prevented from entering the motor circuit board; and the working reliability and the service life of the motor are improved.

The utility model relates to a high-voltage frequency converter redundancy control driving system based on a multi-machine parallel connection structure, which comprises a plurality of high-voltage frequency converters respectively connected with a main control cabinet circuit, and the plurality of high-voltage frequency converters are connected with a motor circuit in a parallel connection mode and jointly output current to drive a motor to operate. The main control cabinet is provided with two sets of independent main control systems and is respectively provided with an independent main control board, and each high-voltage frequency converter is provided with two sets of independent sub-control systems and is respectively provided with an independent sub-control board. The sub-control boards of the two sets of sub-control systems are respectively in one-to-one correspondence and communication connection with the main control boards of the two sets of main control systems through optical fibers to form a control circuit of the parallel driving system of the two paths of high-voltage frequency converters, redundant backups of the two paths of high-voltage frequency converters can be mutually realized, and the main control boards of the two sets of main control systems are also in communication connection through optical fibers. According to the utility model, redundancy control design is adopted, the frequency converter parallel drive system is not affected by faults, and stable operation of the motor is guaranteed.

The invention provides a model prediction control method and system for efficiency improvement of a permanent magnet synchronous motor, and belongs to the technical field of efficiency improvement of the permanent magnet synchronous motor, and the method comprises the steps: obtaining the armature current of the permanent magnet synchronous motor, and carrying out a series of coordinate transformation on the obtained armature current to obtain dq-axis current; inputting the obtained dq-axis current into a motor circuit model to obtain active current and iron loss current of the dq axis; inputting the active current of the dq axis and the iron loss current into a model prediction equation to obtain predicted active current of the dq axis after the next two time periods; and substituting the dq-axis active current after the next two time periods into a cost function to obtain an optimal switching signal, and controlling the operation of the motor based on the optimal switching signal.

The invention discloses a motor line detection system and method based on high-frequency imaging, the system comprises a high-frequency signal excitation module, a signal acquisition and conditioning module, a feature extraction module, an intelligent diagnosis module and a result output module, and the method comprises the following steps: injecting a high-frequency pulse signal into a line to be detected; synchronously acquiring response signals and converting the response signals into digital signals; performing time domain reflection analysis on the digital signal to extract fault distance and reflection intensity characteristics, and performing spectrum analysis to calculate an energy ratio of a preset fault characteristic frequency band to form a fusion characteristic vector; and inputting the feature vector into a pre-trained fault classification model to obtain a comprehensive diagnosis result of the fault type, the severity level and the position. Through high-frequency excitation and multi-domain feature fusion analysis, the problems that a traditional method is low in sensitivity, fuzzy in fault recognition and incapable of positioning are solved, accurate diagnosis and visual presentation of faults can be achieved, and the reliability and efficiency of detection are improved.

The utility model discloses an anti-loosening motor circuit board fixing structure, which comprises a positioning seat, an embracing ring seat, a locking and pressing screw rod and a locking and pressing screw rod fixed on the surface of the positioning seat and used for fixing and protecting a motor circuit board, the surface of the positioning seat is provided with a joint edge, the surface of the embracing ring seat is provided with a joint groove matched with the joint edge, and the locking and pressing screw rod is fixed on the surface of the embracing ring seat. Lock holes matched with locking and pressing screw threads are formed in the surfaces of the positioning base and the holding ring base correspondingly, a pressing column is movably installed on one side of the locking and pressing screw, and a spring connected with the pressing column in an abutting mode is arranged on the inner side of the locking and pressing screw. According to the utility model, the joint edges and the joint grooves which are obliquely inserted are arranged on the surfaces of the positioning seat and the embracing ring seat, so that quick disassembly and assembly can be realized, and the assembly and maintenance efficiency of equipment is improved. Meanwhile, through the thread locking design of the locking and pressing screw rod, it is ensured that the motor circuit board cannot be loosened under the high-frequency vibration condition.

A dual motor drive assembly comprising a housing, a shaft rotatably mounted with respect to the housing, a first gear connected to and configured to rotate with the shaft, first and second motor circuits, each motor circuit including a motor having an output driving a respective output gear, the output gears being engaged with the first gear, a control circuit adapted to allocate independent torque demands to each of the first and second motors to cause a net torque to be applied to the shaft comprising the sum of the torques applied by the two motors, and a processing circuit adapted to estimate the level of load independent mechanical friction of the system by applying torque demands to the two motors.

The utility model belongs to the technical field of coffee machines, and particularly relates to a protection mechanism for grinding, which comprises a vertically through grinding chamber, a grid plate and a switch, a ground object can penetrate through the grid plate, the switch is serially connected in a circuit of a grinding motor, the grid plate is slidably connected onto the grinding chamber, and a grinding cavity for providing a grinding space is formed between the grid plate and the grinding chamber. The grinding chamber is further provided with a locking piece used for fixing the position where the grid plate is located. And the switch is a switch capable of automatically resetting, comprises an elastic contact type mechanical switch and is arranged on a sliding path of the grid plate. On the basis that it is guaranteed that a user is not injured during grinding operation, the grinding cavity can be opened by moving or detaching the grid plate on the grinding chamber, no matter whether a grinding knife on the grinding motor and a shaft cannot be detached or not, the blocked position can be cleaned more conveniently, and the grinding efficiency is improved. And after the grid plate is separated, the polishing motor is automatically powered off, the safety of a user is effectively protected, repair and daily maintenance operation are facilitated, and the use difficulty of the user is greatly reduced.

The utility model discloses a spring and lower bracket assembly of a square Z-axis linear motor, which comprises a lower bracket and a spring, an FPC (Flexible Printed Circuit) is connected above the lower bracket, a coil is connected above the FPC, two bonding pads connected with a lead of the coil are arranged on the FPC, the two bonding pads are arranged at an angle of 120 degrees by taking the circle center of the coil as the center, the spring is arranged above the lower bracket, and the spring is arranged above the lower bracket. A through groove corresponding to the coil is formed in the center of the spring, and three receding grooves arranged at 120 degrees are formed in the circumferential side of the through groove. According to the utility model, the two bonding pads are arranged at an angle of 120 degrees by taking the circle center of the coil as the center, and the three avoiding grooves which are arranged at an angle of 120 degrees are arranged on the circumferential side of the through groove, so that the inner ring of the spring can avoid the lead of the coil, and the situation that a motor circuit is broken due to the fact that the lead of the coil is broken by collision by the spring under the conditions of a mechanical shock test and the like can be avoided.

The utility model relates to a motor circuit breaker with adjustable tripping stroke, which comprises a shell, a tripping device and a bimetallic strip installed in the shell, an adjusting assembly installed in the shell, an adjusting knob, a fine adjustment screw, a knob holder and a secondary piece support, the adjusting knob is provided with a worm-shaped convex involute part, one end of the knob holder is connected with the shell, the other end is connected with the fine adjustment screw through screw threads, the fine adjustment screw is in contact with the involute part, the secondary piece support is connected with the knob holder to form a seesaw structure, one end of the secondary piece support is provided with a driving element connected with the bimetallic strip, the driving element is in a seesaw state, and the secondary piece support can extrude the tripping device in the direction of the knob holder through the other end push plate to trigger; the rotation of the fine adjustment screw can change the stroke interval between the push plate and the tripping device, the bimetallic strip only needs to be bent with a smaller amplitude to drive the push plate to extrude the tripping device, and the position of the bimetallic strip does not need to be changed by disassembling the shell during the process, so the operation is simple and convenient.

The invention discloses a thermal management system, a control method, a storage medium and a vehicle. The system comprises a first condenser and a second condenser which are connected in series, the first condenser is connected with a first water-cooling evaporator through a first electronic expansion valve, and the second condenser is connected with the first water-cooling evaporator through an electromagnetic valve and a compressor; the first condenser is connected with the second water-cooling evaporator through a second electronic expansion valve, and the second condenser is connected with the second water-cooling evaporator through a compressor and an electromagnetic valve; the passenger cabin cooling loop is connected with the first water-cooling evaporator, the passenger cabin heating loop is connected with the first condenser and the second condenser through a third three-way valve and a first water pump, and the battery loop is connected with the second water-cooling evaporator; the motor loop is connected with the first condenser and the second condenser through a first three-way valve, a second three-way valve and a third three-way valve. The technical problem that the energy efficiency performance is poor due to the fact that an existing heat management system adopts a single evaporator is solved.