26 results about "Motor loop" patented technology

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 embodiment of the present application provides a kind of heat management integrated module and vehicle, heat management integrated module includes motor, battery, liquid pump, radiator, evaporator and first multi-way valve.Radiator is cooled to motor and forms motor loop with liquid pump.Battery has import side and export side, the import side of battery is communicated with the position of motor loop between liquid pump and radiator, the export side of battery is communicated with the position of motor loop between motor and liquid pump.Evaporator has import side and export side for cooling liquid to enter and exit, the import side of evaporator is communicated with the export side of battery, the export side of evaporator is communicated with the position of motor loop between motor and liquid pump.First multi-way valve is communicated with the export side of motor and the export side of evaporator, first multi-way valve can control the on-off of motor loop, and the on-off of the export side of motor and the export side of evaporator with motor loop, to integrate motor loop with battery and evaporator, reduce complexity, simplify the layout of vehicle.

The invention provides a fault processing method, a storage medium and a vehicle, and the method comprises the steps: obtaining the first opening information of a target liquid pump in a motor loop, and carrying out the fault detection of the target liquid pump based on the first opening information, and obtaining a first detection result; under the condition that the first detection result represents that the target liquid pump has the fault, a relay of the target liquid pump is controlled to execute target operation; second opening degree information of the target liquid pump is obtained, fault detection is carried out on the target liquid pump again based on the second opening degree information, and a second detection result is obtained; and under the condition that the second detection result represents that the target liquid pump has the fault, the standby liquid pump is started to work, so that the liquid in the motor loop is driven to flow through the standby liquid pump. According to the technical scheme, faults can be quickly handled, normal work of the target liquid pump can be recovered in time, the fault handling efficiency is improved, the maintenance cost is reduced, and it is avoided that faults of the target liquid pump affect the running safety of the motor.

The utility model discloses a motor protection device supporting distributed electrical fire monitoring and detection. The motor protection device comprises a display module used for displaying electrical fire monitoring and detection information, a main body module used for realizing motor control and protection, a fire protection loop used for monitoring hidden dangers around a motor, and a motor loop used for monitoring wire inlet current of the motor. The display module integrates an electrical fire monitoring function, keeps a small size and an embedded installation mode of a conventional motor display module, and does not occupy other space in the cabinet. According to the utility model, while the motor is controlled and protected, high-risk fire hazard points near the running motor are monitored through the display module, and when a power failure is caused by a fire hazard, a power supply provided by the main body integrated energy storage module is obtained, so that stable alarm and uploading are ensured when the power supply is lost; the data of each high-risk hidden danger point near the motor can be stably uploaded through a bus, and the operation reliability of the motor is improved.

The utility model belongs to the steel production technical field discloses a kind of steel car on-site operation remote control system, including operation box, and the controller being communicated with operation box;Operation box is equipped with ladle capping walking motor, ladle capping hook motor and the operating circuit for driving;Operating circuit includes walking motor loop, hook motor loop and power supply loop;Walking motor loop includes circuit breaker QF1, circuit breaker QF2, ac contactor KM1, ac contactor KM2, thermal relay FR1 and three-phase ac motor M3~;Hook motor loop includes circuit breaker QF1, circuit breaker QF3, ac contactor KM3, ac contactor KM4, thermal relay FR2 and three-phase ac motor M3~;Power supply loop is connected by circuit breaker respectively.The utility model has realized the remote operation of equipment, and operator can operate equipment far from dangerous source and place of sight difference, avoid the harm caused by molten steel spatter etc., or the equipment operation accident caused by sight difference.

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 relates to a motor wiring terminal structure and an installation method thereof.The motor wiring terminal structure comprises an installation plate, a rod-shaped motor terminal body and a power line cold-pressing connector, the motor terminal body is arranged on the installation plate in a penetrating mode, the upper portion of the motor terminal body is sleeved with the power line cold-pressing connector, and a crimping pipe used for being connected with a wire is arranged at the lower end of the motor terminal body; the wire is inserted into a wire connecting hole channel in the middle of the crimping pipe and is pressed by the crimping pipe, and welding notches which are communicated with the wire connecting hole channel and used for being filled with welding flux are formed in the two sides of the crimping pipe. According to the motor wiring terminal structure, the wire and the motor terminal body can be connected more tightly, the loop resistance of the motor can be effectively located at a required value, the loop resistance is excellent and stable, manual installation and wiring are facilitated, the reproduction rate is high, materials cannot be corroded by refrigerants, and the motor wiring terminal structure has the advantages of improving the motor performance, reducing the reject ratio and reducing the cost. And the method is of great significance in improving the field installation speed and reducing the installation error rate.

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 relates to a vehicle and belongs to the field of automatic control. The vehicle comprises an electric pile loop system, a motor loop system, a battery loop system and a warm air loop system. The warm air loop system is communicated with at least one of the electric pile loop system, the motor loop system and the battery loop system; when the warm air loop system is communicated with the electric pile loop system, the warm air loop system is used for providing heat for the electric pile loop system; when the warm air loop system communicates with the battery loop system, the warm air loop system is used for providing heat for the battery loop system; and when the warm air loop system communicates with the motor loop system, the motor loop system is used for providing heat for the warm air loop system. In the application, the warm air loop system is communicated with at least one of the electric pile loop system, the motor loop system and the battery loop system, so that the energy between the systems can be recycled, and the energy utilization rate of the vehicle is improved.

The invention provides a control method, system and equipment for a vehicle heat pump system and a medium, and the control method comprises the steps that the operation condition of the vehicle heat pump system, the water temperature of a motor outlet in a motor loop and the water temperature of a cooler inlet in a battery loop are obtained, and the air inlet parameter and the air outlet parameter of an evaporator in a passenger compartment loop and the air volume passing through the evaporator are obtained; battery parameters and water pump flow in a battery loop are obtained; according to the air inlet parameters, the air outlet parameters and the air volume, passenger compartment required energy is calculated; calculating battery demand energy according to battery parameters and water pump flow; calculating system demand energy according to the passenger compartment demand energy and the battery demand energy; according to the operation working condition, the system demand energy, the water temperature of a motor outlet or the water temperature of a cooler inlet, the rotating speed of a compressor is obtained; and the opening degree of a refrigerant valve is obtained according to the operation working condition, the system demand energy and the water temperature of a motor outlet. Effective optimization of energy driving of the heat pump system can be achieved, and excessive refrigeration or excessive heating is avoided.

The invention discloses a thermal management system and method, a vehicle, a device, electronic equipment and a storage medium. According to the main technical scheme, the thermal management system comprises a five-way valve 101, a water-cooling intercooler 102, a motor loop 20, a radiator 103 and a battery loop 30; a first interface of the five-way valve 101 is communicated with a first end of the motor loop 20; a second interface of the five-way valve 101 is communicated with a first end of the water-cooling intercooler 102; a third interface of the five-way valve 101 is communicated with a first end of the radiator 103, and a second end of the radiator 103 is communicated with a second end of the water-cooling intercooler 102 and a second end of the motor loop 20; a fourth interface of the five-way valve 101 is communicated with a first end of the battery loop 30, and a second end of the battery loop 30 is communicated with a second end of the water-cooling intercooler 102 and a second end of the motor loop 20; and a fifth interface of the five-way valve 101 is communicated with the second end of the water-cooling intercooler 102 and the second end of the motor loop 20. According to the scheme, the integrated design of the motor loop, the water-cooling intercooler and the battery loop is realized through the five-way valve, the cost is reduced, and the control logic of the thermal management system is simplified.

The application provides an integrated thermal management system, a control method and a vehicle, and the system comprises a controller, a seven-way valve integrated module, a battery circuit, a heating circuit and a motor circuit; wherein the seven-way valve integrated module is integrated with a seven-way valve, a water tank and three water pumps; the controller is used for generating a control instruction according to a thermal management mode, and the control instruction is used for controlling the communication state of the seven-way valve integrated module and the heating circuit, the battery circuit and the motor circuit; the three water pumps are connected in series with the battery circuit, the heating circuit and the motor circuit respectively; the seven-way valve is used for controlling the driving mechanism to drive the valve core to rotate according to the control instruction, and at least two target interface pipes in the seven interface pipes are communicated, so that the pipe openings of the target circuits connected with the at least two target interface pipes are communicated, and a thermal management circuit corresponding to the thermal management mode is formed. The application improves the integration of components, reduces the number of connecting pipes and the number of control motors.

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.

The application provides a manifold assembly, a thermal management integrated module and an electric vehicle. The manifold assembly comprises a manifold body and a partition. The manifold body has a first flow channel, a second flow channel and a first communication flow channel. The first flow channel is in communication with a first liquid pump and a motor in the thermal management integrated module, and together forms a motor loop flow channel for the circulation of a cooling medium. The second flow channel is in communication with a second liquid pump and a battery in the thermal management integrated module, and together forms a battery loop flow channel for the circulation of the cooling medium. The first communication flow channel is in communication with the first flow channel and the second flow channel. The partition is arranged in the first communication flow channel. The partition is configured to block the communication between the first flow channel and the second flow channel in the first communication flow channel, and allows the cooling medium to pass through. The manifold assembly of the application can reduce the energy loss caused by heat cross between the cooling media in the loop flow channels, thereby avoiding the excessive energy loss affecting the heat exchange performance of the vehicle.

The utility model discloses an eVTOL heat management system and an aircraft, and relates to the field of aircrafts, the heat management system comprises a motor loop, a battery loop and a control mechanism, the motor loop comprises a heat dissipation mechanism and at least one motor, the heat dissipation mechanism and the motor can be connected in series through a first pipeline, and the first pipeline is used for circulating a heat carrying medium; when the number of the motors is at least two, the at least two motors are connected in parallel through the first pipeline, the heat dissipation mechanism is used for cooling the motors, the battery loop comprises at least one battery pack, and when the number of the battery packs is at least two, the at least two battery packs are connected in parallel through the second pipeline. The second pipeline is used for circulating a heat-carrying medium, the control mechanism is used for controlling the on-off of the motor loop and the battery loop and connecting the motor loop and the battery loop in series, the overall structure is simple, and the heat management efficiency is high.

The invention relates to the field of transformer on-load tap-changers, and provides a transformer on-load tap-changer remote gear shifting device which is suitable for auxiliary gear shifting work of test items such as a power transformer direct-current resistance test, a transformation ratio test and an on-load tap-changer test. Comprising a conventional on-load tap-changer and further comprises a control chip electrically connected to a motor loop and a control loop in the on-load tap-changer. M bits in the control chip can be used as a plurality of hard buttons or HMI virtual buttons to be connected with input equipment; q bits in the control chip are a plurality of control interfaces and serve as output units, and a worker can change the running state of a corresponding relay on the Q bits by controlling input equipment of the M bits; a tester can remotely adjust the gear of the on-load tap-changer while operating the test instrument, test items such as a direct-current resistance test, a transformation ratio test and an on-load tap-changer test which need to change the gear of the tap-changer are independently completed, and manual gear adjustment is not needed.

The utility model discloses a motor drive protection circuit and a motor assembly, and belongs to the technical field of motor drive, the motor drive protection circuit comprises a drive circuit, a sampling circuit, a voltage comparison circuit and a reset circuit, the drive circuit is connected with a servo motor, and the sampling circuit is connected with the servo motor. The voltage comparison circuit comprises a voltage stabilizing loop and an optical coupling loop which are connected with each other, one end, far away from the optical coupling loop, of the voltage stabilizing loop is connected with the sampling circuit, and one end, far away from the voltage stabilizing loop, of the optical coupling loop is connected with the reset circuit; a monitoring circuit is also connected between the sampling circuit and the voltage stabilizing loop, and the monitoring circuit is used for monitoring the current change of the motor loop; and the reset circuit is used for automatically trying to recover normal power supply after the motor is short-circuited. The motor driving protection circuit can cut off a power supply in time after a short circuit fault occurs in the circuit so as to protect the motor; and after the external fault is removed, protection can be automatically closed, so that the motor recovers a normal working state.

The invention belongs to the technical field of automobile thermal management, and particularly relates to a range-extended automobile thermal management system, a control method, a valve body assembly and an automobile, and the range-extended automobile thermal management system comprises a front end loop at least comprising a first low-temperature radiator; the motor loop at least comprises a rear motor; and when the water temperature of the outlet of the first low-temperature radiator is lower than a first preset temperature, the cooling liquid flowing out of the rear motor flows through the first low-temperature radiator for heat exchange and then flows into the rear motor again. The problems that an automobile is low in heat exchange efficiency and high in energy consumption in different automobile modes are solved.

The invention provides a thermal management control method for an extended-range electric vehicle. A whole vehicle cooling system is connected with an engine loop, a dual-motor loop, a battery pack loop and a warm core loop through a seven-way valve; a vehicle control unit (VCU) controls angle switching of a seven-way valve, the duty ratio of an electronic water pump and the rotating speed of a cooling fan based on request signals sent by a battery management system (BMS), a motor controller (MCU) and an air conditioner controller (ACM), and vehicle thermal management control is achieved.

The utility model relates to a kind of anti-peak energy absorption circuit of electric tool, more specifically, it is related to a kind of anti-peak absorption part in the drive circuit of electric tool suitable for small assembly space. Including motor, controllable power switch in series with motor, current detection device installed in motor loop, central controller and drive power supply, it is characterized as, including instantaneous absorption device and controllable freewheeling device;The controllable freewheeling device is controlled by central controller, and its on-resistance or equivalent on-resistance is lower than 10mΩ.

The application provides a kind of thermal management system, it is related to new energy vehicle field.The application provides a kind of thermal management system, comprising: six-way valve and multiple circuits, wherein multiple circuits include motor circuit, air heating circuit, heat dissipation circuit and refrigerant circuit, six-way valve is communicated by different communication ways and motor circuit, air heating circuit and heat dissipation circuit are communicated, so that motor circuit, heat dissipation circuit and air heating circuit constitute different circuits, to realize the functional requirement of passenger cabin, battery and motor under different working conditions, refrigerant circuit is exchanged with motor circuit and air heating circuit by the heat exchanger of setting refrigerating machine and evaporator, to realize the heating of battery and the indirect heating or cooling of passenger cabin, compared with the thermal management technology scheme used in prior art, the number of valve combination required by the thermal management system provided in the application is less, the versatility is high and the coverage function is more comprehensive, the manufacturing cost and weight are reduced under the premise of guaranteeing function and performance.

The application belongs to the technical field of transformer equipment, and particularly relates to a transformer oil supplementing system and method based on PLC automatic control, the method comprising: obtaining an initial oil level and a current oil temperature of a transformer oil tank; calculating an oil level conforming to the current oil temperature according to the obtained current oil temperature and an oil temperature-oil level curve, and calculating a volume of oil to be supplemented by comprehensively considering the initial oil level and the type of the transformer oil tank; controlling a motor to start an oil pump and start oil supplementing operation, and obtaining real-time oil supplementing flow data during the oil supplementing process; according to the oil supplementing flow data and the volume of oil to be supplemented, when a preset first-stage remaining supplement amount is reached, controlling the output frequency of a frequency converter to be reduced, and continuously performing oil supplementing operation; when a preset second-stage remaining supplement amount is reached, cutting off a motor loop and stopping oil supplementing operation. The frequency of the frequency converter is controlled based on the feedback of a flow meter, the oil supplementing rate is reduced, and the over-supplement of oil due to the inertia of the excessively fast oil supplementing rate is prevented, so that the accuracy of oil supplementing is improved.

The utility model provides an electrical system of an extra-high voltage direct current converter station knife switch redundancy mechanism box. The electrical system comprises an A system motor loop, a B system motor loop, a system control loop connected with the A system motor loop and the B system motor loop, and an electromagnetic clutch loop connected with the system control loop. The system control loop comprises a change-over switch, a system selection switch, an A system control branch and a B system control branch, wherein the A system control branch and the B system control branch are connected with the change-over switch and the system selection switch. When the system A breaks down, the change-over switch is switched to a near control gear, the system selection switch is switched to the system B, the system B is controlled by the system B control branch in a short-range or remote mode to switch on the high-voltage isolation switch through the electromagnetic clutch loop, and the high-voltage isolation switch is controlled to be switched on or switched off. The safety, reliability and automation degree of the high-voltage isolating switch can be improved, and the problem of direct-current locking generated when a secondary signal loop of the high-voltage isolating switch is not in place can be effectively prevented.

The embodiment of the present application provides a kind of thermal management system and the vehicle with it, thermal management system includes engine loop, motor loop, refrigerant circuit, first control valve, battery loop and warm air pipeline, wherein, first control valve is used to at least one of engine loop, motor loop, refrigerant circuit with battery loop communication, refrigerant circuit has heating mode and refrigeration mode, warm air pipeline is selectively arranged in parallel with battery loop.In the embodiment of the present application, two or all of engine loop, motor loop, refrigerant circuit can be communicated with battery loop, to directly heat battery using engine waste heat, motor waste heat, refrigerant circuit heat simultaneously, realize the full recycling of system heat, so that additional electric heater does not have to be set in system again for heating, reduce the corresponding layout cost, solve the technical problem of large energy consumption in heating mode in the prior art.

The utility model discloses a circuit motor fault monitor which is characterized by comprising a motor wire, a motor, a coupler, a VTM3160 sensor, an insulation detector, an LED touch screen, an HZ-158 gateway, an HZ193 instrument and a 4G antenna. According to the circuit motor fault monitor of the utility model, the VTM3160 sensor is integrated, and the insulation detector can monitor the insulation condition of a motor loop in real time, thereby ensuring the safe operation of equipment. When the insulation monitor finds an abnormality, an alarm can be given out in time, and accidents are avoided. The insulation detector, the VTM3160 sensor and the LED touch screen can exchange data with other equipment through an RS485 communication interface, so that monitoring on multiple aspects of electric energy quality, leakage current, zero-sequence current, temperature, fault arc and the like is realized, and the safety and economical efficiency of equipment operation are improved; through the carried monitoring module, the instrument has fault early warning and fault wave recording functions, and can monitor the operation state of the equipment in real time.