101 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.

The utility model relates to the technical field of microelectronic processing, in particular to a circuit board dispensing and drying device for microelectronic processing, which comprises a bottom plate, a first support plate, a second support plate, a first through groove, a baking lamp, a storage battery, a temperature sensor and a single chip microcomputer. The temperature of the baking lamp is increased, so that the temperature of a cavity formed among a first connecting plate, a first supporting plate and a second supporting plate is increased, and when the temperature is increased to a threshold value of a temperature sensor, the single-chip microcomputer reduces discharge of the storage battery to the baking lamp, so that the temperature in the cavity is stably kept at a proper temperature for drying the circuit board; then the circuit board is placed on the conveying belt and driven by the first motor to enter the cavity, so that drying of the circuit board is achieved, the scheme that the circuit board is dried through the baking lamp can effectively avoid the problem of glue position deviation occurring when an air heater is used for drying, and therefore the drying effect of the device on the circuit board is improved; and the subsequent maintenance cost of the circuit board is reduced.

This invention discloses a thermal management system and method for low-temperature environments in automobiles, belonging to the field of vehicle thermal management technology. In this system, the motor circuit is connected to port b of a first four-way valve, port c of the first four-way valve is connected to the HVH (heating air system), and the HVH is also connected to port b of a second four-way valve. Port a of the second four-way valve is connected to the solar panel heat exchanger, and port c of the second four-way valve is connected to the heater circuit. The heater circuit and the motor circuit are also connected to port a of the first four-way valve via a water pump, and the heater circuit and the solar panel heat exchanger are also connected to the motor circuit. Port d of the first four-way valve is connected to port d of the second four-way valve. This system can meet passenger cabin comfort requirements with minimal energy consumption.

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 relates to an electric energy transmission circuit and a control method thereof and a vehicle. The electric energy transmission circuit comprises an energy storage capacitor, a motor circuit, a driving circuit and a controller. Without adding additional pre-charging relays and pre-charging resistors, only the original motor circuit and the driving circuit in the vehicle-mounted circuit are reused. The pre-charging function of the vehicle-mounted storage battery to the bus capacitor through the energy storage capacitor can be realized by controlling the conduction state of the semiconductor switch of the driving circuit. The pressure relief of the bus capacitor to the energy storage capacitor and the vehicle-mounted storage battery can be realized. Thus, the problems of large size and high cost of the pre-charging circuit in the related art are solved.

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.

A heat management system of a range extended vehicle, a control method and an electric vehicle, the heat management system of the range extended electric vehicle comprising: a refrigerant circuit, an engine circuit, a battery circuit; the refrigerant circuit comprising an evaporator, the engine circuit comprising a warm core, the refrigerant circuit and the engine circuit exchanging heat through the evaporator and the warm core; the battery circuit and the refrigerant circuit comprising a battery cooler, the battery circuit and the refrigerant circuit exchanging heat through the battery cooler; the engine circuit and the motor circuit comprising an electronic thermostat, the battery circuit and the engine circuit exchanging heat through the electronic thermostat. The application realizes the range extended heat management of the battery vehicle by coupling the refrigerant circuit, the engine circuit and the battery circuit.

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.

The application discloses a heat management system of a range extended vehicle, and relates to the technical field of heat management, comprising an engine cooling circuit, a battery heat management circuit and an electric drive system heat management circuit, and further comprising a coupling heat exchanger and at least one fluid control valve; the coupling heat exchanger is connected between the engine cooling circuit and the battery heat management circuit, and the at least one fluid control valve is arranged in the electric drive system heat management circuit. The heat management system breaks through the technical barrier that traditional heat management circuits are independent of each other, and first constructs an integrated system capable of realizing heat interaction on the range extended vehicle. Through the coupling heat exchanger and the fluid control valve, waste heat of the engine can be transmitted to the battery for preheating, and the residual heat of the motor circuit can be more flexibly utilized. The heat island problem is solved from the system principle, and structural possibility is provided for subsequent technical effects of improving energy efficiency and reducing energy consumption.

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 present invention discloses a hand dryer. The hand dryer comprises a housing, the housing being provided with an air outlet, an air duct formed within the housing leading to the air outlet, and a motor and fan blades driven by the motor. The motor comprises a motor housing, and the housing further comprises at least one circuit board electrically connected to the motor. At least one of the circuit boards is a motor circuit board, which is disposed between the motor housing and the housing. Compared with existing hand dryers, the present invention is smaller in size.

The invention relates to the technical field of low-voltage electrical control, and discloses an anti-interference low-voltage electrical circuit which comprises a three-phase power supply, a circuit breaker QF0, a circuit breaker QF1, a circuit breaker QF5, a motor circuit breaker, an alternating current contactor KM1, an auxiliary oil pump motor M1, a change-over switch SA, a stop button SB1, a start button SB2, an intermediate relay KA1, an intermediate relay KA2, an intermediate relay KA3 and a time relay KT. And the time relay KT is used as an anti-interference electricity module, and a power-off delay contact of the time relay KT is connected in series / in parallel with coil control logic of the alternating current contactor KM1 and is used for monitoring voltage, disconnecting the contact according to set delay after power loss and quickly responding when power is on so as to cooperatively realize self-starting. The power-on self-starting function of the motor is realized by utilizing the power-off delay function of the anti-interference electricity module or the time relay, and the power-on self-starting device is suitable for an electrical control loop of important equipment, is simple, reliable and convenient to operate, and greatly improves the power supply reliability of the electrical equipment.

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.

This invention relates to the field of power equipment technology and discloses a method and network monitoring system for monitoring disconnect switches, used to achieve effective monitoring of disconnect switches. The method for monitoring disconnect switches includes: collecting multi-dimensional information about the disconnect switch and its associated equipment, including motor circuit voltage, current, opening and closing angles, number of operations, video monitoring, and temperature and humidity; combining real-time external interlocking node status with an analogy model of motor current versus opening and closing angles; comprehensively evaluating the working status of the disconnect switch; and determining whether the disconnect switch needs maintenance based on this evaluation.

The invention discloses a feller sawing operation control system and a feller. The system comprises a controller, a saw motor, a saw plate oil cylinder, a saw plate and chain saw assembly, a first pressure sensor for detecting the loop pressure of the saw plate oil cylinder and a second pressure sensor for detecting the loop load pressure of the saw motor. The controller stores pressure standard values of saw cutting start, saw cutting completion and saw plate return completion; the controller is configured as follows: when saw cutting is started, the saw motor is controlled to rotate at a standard speed, and the saw plate and the chain saw assembly move towards the tree; when the detection value of the second pressure sensor exceeds the pressure standard value at the beginning of saw cutting, the saw motor is switched to rotate at a high speed; when the detection value of the second pressure sensor is reduced to the standard value of the sawing completion pressure, the saw motor is controlled to stop, and the saw plate and the chain saw assembly are reset; and when the detection value of the first pressure sensor is equal to the pressure standard value for completing returning of the saw plate, the saw plate oil cylinder is controlled to stop. The saw motor and the saw plate oil cylinder can be controlled to work, and judgment of a machine hand is replaced.

The invention provides a dynamic current-limiting protection method and device for an aviation fuel pump based on motor back electromotive force, and relates to the technical field of brushless direct current motor control. The method comprises the steps that a current detection circuit is used for monitoring the bus current of a brushless direct current motor in real time, and a bus current signal is obtained; detecting a circuit acquisition motor in real time by using a back electromotive force detection circuit to obtain a back electromotive force signal; performing signal conversion on the back electromotive force signal by using a back electromotive force detection circuit to obtain a dynamic current-limiting threshold value; comparing and analyzing the bus current signal and the dynamic current-limiting threshold value by using a current-limiting comparator circuit to obtain an overcurrent signal; and performing current-limiting protection on the motor by using the controller to obtain a motor operation state monitoring result and a dynamic current-limiting protection result. According to the invention, the problem that the aircraft fuel pump motor hardware driver is difficult to obtain reliable hardware protection and guarantee the performance requirement during high-speed operation at the same time under different working conditions is solved.

The embodiment of the utility model discloses a constant power motor circuit applied to a water cooling fan. The constant power motor circuit comprises a PWM speed regulation signal detection circuit used for detecting the current rotating speed of a motor; the three-phase half-bridge circuit is used for driving the motor; the voltage detection circuit is used for detecting three-phase voltage of the motor; the power output circuit is used for supplying power; and the motor driving chip is used for controlling the rotating speed of the motor through a three-phase half-bridge circuit. The air volume can be controlled to be constant, and the user experience is improved; compared with the prior art, the utility model can be applied to more use environments, and the market competitiveness 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.