Air-cooled split type electric vehicle motor controller

Abstract

The utility model relates to the related technical field of motor controllers, in particular to an air-cooled split type electric vehicle motor controller which comprises a shell, and a heat dissipation mechanism is arranged in the shell. According to the air-cooled split type electric vehicle motor controller, through the arrangement of the heat dissipation mechanism, when the controller works, a circuit board generates heat to heat the shell, and temperature sensors at the two ends of a bearing box monitor in real time and exceed a safety threshold value, a signal is transmitted to a control system, and a self-priming pump and a driving motor are started; cooling liquid pumped by the self-priming pump absorbs heat through the circulating heat dissipation pipe and then flows back to be cooled, and liquid cooling circulation is formed; the driving motor drives the cooling fan to rotate, exhaust hot air and achieve air cooling, two cooling modes are matched, the control system dynamically adjusts the flow of the self-priming pump and the rotating speed of the motor according to the temperature, and compared with a traditional electric controller, the device is higher in cooling efficiency, capable of accurately controlling the temperature, avoiding overheating and efficiency reduction, capable of intelligently saving energy and guaranteeing stable operation of the controller and suitable for popularization and application. Therefore, the equipment performance is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to motor controller technical field especially relates to a kind of air-cooled split type electric vehicle motor controller. BACKGROUND

[0002] Motor controller is a kind of electronic equipment for controlling motor operation, also be called motor driver or motor speed regulator, main function is the direct current converted from battery output to be suitable for the driving signal of motor, through controlling the voltage, current and frequency of motor and other parameters, realize the start, stop, acceleration, deceleration, positive and negative rotation and speed regulation etc. Operation control of motor, to meet the requirements of different equipment and application scenarios to motor operation, and electric vehicle motor controller produces a large amount of heat when working, therefore, especially need a kind of air-cooled split type electric vehicle motor controller.

[0003] But traditional electric vehicle motor controller, more natural heat dissipation or simple fin heat dissipation, under the working condition of electric vehicle high-power operation, controller is prone to a large amount of heat, heat dissipation not timely can lead to performance degradation, shortened life even failure. UTILITY MODEL CONTENTS

[0004] The utility model is provided with air-cooled split type electric vehicle motor controller, has the air-cooled heat dissipation function to motor controller, solves the problem of traditional motor controller heat dissipation not timely leading to equipment performance degradation.

[0005] To realize the above-mentioned purpose, the utility model provides the following technical scheme: an air-cooled split type electric vehicle motor controller, including shell, the inside of one side of shell is equipped with installation slot, one side of shell is installed with threading board, the both ends of threading board are fixedly connected with clamping plate, the surface of threading board is equipped with threading hole, the inside of shell is installed with circuit board, the surface of shell is provided with mounting mechanism, the inside of shell is provided with heat dissipation mechanism;

[0006] The heat dissipation mechanism includes cooling liquid box, self-priming pump, circulating heat dissipation pipe, bearing box, temperature sensor, motor shell, drive motor, rotating shaft and heat dissipation fan, the inside bottom side of shell is installed with cooling liquid box, the top of cooling liquid box is installed with self-priming pump, the output end of self-priming pump is installed with circulating heat dissipation pipe, the inside bottom side of shell is installed with bearing box, the both ends of bearing box are installed with temperature sensor, the inside of bearing box is installed with motor shell, the inside of motor shell is installed with drive motor, the output end of drive motor is fixedly connected with rotating shaft, one end of rotating shaft is installed with heat dissipation fan.

[0007] Preferably, the threading board is installed on one side of the shell through the clamping plate and the installation slot, and the outer wall size of the clamping plate matches the inner wall size of the installation slot.

[0008] Preferably, the threading holes are arranged in multiple groups on the surface of the threading plate, and the sizes of the threading holes are different.

[0009] Preferably, the mounting mechanism comprises a clamping groove, a cover plate, a clamping block, a positioning hole, a spring, a pulling block, a positioning rod, a clamping hole, a fixing hole, a fixing bolt and a ventilation hole, the upper portion of the shell is provided with the clamping groove, the upper portion of the shell is provided with the cover plate, the two ends of the cover plate are fixedly connected with the clamping block, the upper surface of the clamping block is provided with the positioning hole, the outer side of the positioning hole is fixedly connected with the spring, the top end of the spring is fixedly connected with the pulling block, the bottom end of the pulling block is fixedly connected with the positioning rod, the clamping groove is internally provided with the clamping hole, the clamping groove is further internally provided with the fixing hole, the fixing hole is penetrated through with the fixing bolt, and the surface of the cover plate is provided with the ventilation hole.

[0010] Preferably, the cooling liquid box and the self-suction pump are arranged in the same four groups on the inner bottom side of the shell, and two circulating heat dissipation pipes are arranged between every two groups.

[0011] Preferably, the cover plate is mounted at the top end of the shell through the clamping block and the clamping groove, and the outer wall size of the clamping block is consistent with the inner wall size of the clamping groove.

[0012] Preferably, the clamping groove is arranged in the same four groups on the surface of the shell, and the clamping hole is arranged in one group, and the fixing hole is arranged in the other three groups.

[0013] Compared with the prior art, the utility model provides: a kind of air-cooled split type electric vehicle motor controller, with following beneficial effects: the setting of heat dissipation mechanism, when controller works, circuit board heat production makes shell temperature rise, temperature sensor in real time monitoring at the both ends of bearing box, when exceeding safety threshold, signal is transmitted to control system, start self-suction pump and drive motor, self-suction pump extracts cooling liquid and forms liquid cooling circulation after heat absorption by circulating heat dissipation pipe backflow cooling;Drive motor drives heat dissipation fan to rotate, expels hot air, realizes air cooling, two kinds of heat dissipation modes cooperate, and control system dynamically adjusts self-suction pump flow and motor speed according to temperature, compared with traditional electric controller, the device is more efficient, can accurately control temperature, avoid overheating and reduce efficiency, also can intelligently save energy, guarantee controller stable operation, to improve equipment performance, increase the service life of equipment. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is the appearance side view structure schematic diagram of the utility model;

[0015] Figure 2 It is the internal structure schematic diagram of the utility model;

[0016] Figure 3 It is the mounting mechanism structure schematic diagram of the utility model;

[0017] Figure 4 The utility model discloses a heat dissipation mechanism structure schematic view.

[0018] In the drawing: 1, shell, 2, installation slot, 3, threading board, 4, clamping plate, 5, threading hole, 6, circuit board, 7, mounting mechanism, 701, clamping groove, 702, cover plate, 703, clamping block, 704, positioning hole, 705, spring, 706, pull block, 707, positioning rod, 708, clamping hole, 709, fixed hole, 710, fixed peg, 711, air hole, 8, heat dissipation mechanism, 801, cooling liquid box, 802, self-suction pump, 803, circulating heat dissipation pipe, 804, bearing box, 805, temperature sensor, 806, motor shell, 807, driving motor, 808, rotating shaft, 809, heat dissipation fan. DETAILED DESCRIPTION

[0019] The technical scheme in the embodiments of the utility model will be described clearly and completely below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the ordinary skill in the art without creative labor belong to the protection scope of the utility model.

[0020] Please refer to Figures 1-4 The utility model provides a kind of technical scheme: a kind of air-cooled split type electric vehicle motor controller, including shell 1, installation slot 2 is set in the inside of one side of shell 1, threading board 3 is installed on one side of shell 1, clamping plate 4 is fixedly connected at the both ends of threading board 3, threading hole 5 is set on the surface of threading board 3, circuit board 6 is installed in the inside of shell 1, mounting mechanism 7 is provided on the surface of shell 1, heat dissipation mechanism 8 is provided in the inside of shell 1;

[0021] The heat dissipation mechanism 8 includes a coolant box 801, a self-priming pump 802, a circulating heat pipe 803, a carrier box 804, a temperature sensor 805, a motor housing 806, a drive motor 807, a rotating shaft 808, and a cooling fan 809. The coolant box 801 is installed on the bottom inner side of the outer casing 1. The self-priming pump 802 is installed above the coolant box 801, and the circulating heat pipe 803 is installed at the output end of the self-priming pump 802. The carrier box 804 is installed on the bottom inner side of the outer casing 1. Temperature sensors 805 are installed at both ends of the carrier box 804. The motor housing 806 is installed inside the carrier box 804, and the drive motor 807 is installed inside the motor housing 806. The output end of the drive motor 807 is fixedly connected to the rotating shaft 808. A cooling fan 809 is installed at one end. Through the cooling mechanism 8, when the air-cooled split electric vehicle motor controller starts working, the cooling mechanism 8 also starts and continues to function, ensuring the controller is at a suitable operating temperature. During controller operation, the circuit board 6 generates heat, causing the internal temperature of the casing 1 to gradually rise. At this time, temperature sensors 805 installed at both ends of the carrier box 804 monitor the internal temperature of the casing 1 in real time. When the temperature sensor 805 detects that the temperature exceeds the preset safety threshold, it transmits a signal to the control system. After receiving the signal, the control system immediately starts the self-priming pump 802 and the drive motor 807. The self-priming pump 802 starts working, drawing out the coolant from the coolant box 801 and transporting it through the pump... The coolant is supplied to the circulating heat pipe 803, which is tightly fitted around the circuit board 6. As the coolant flows through the circulating heat pipe 803, it absorbs the heat generated by the circuit board 6, thereby reducing the temperature of the circuit board 6. The coolant that has absorbed the heat then flows back to the coolant box 801 for further cooling. This cycle repeats continuously, forming a highly efficient liquid cooling circulation. At the same time, after the drive motor 807 starts, its output drives the rotating shaft 808 to rotate at high speed. The cooling fan 809 installed at one end of the rotating shaft 808 also rotates. The rotation of the cooling fan 809 generates a strong airflow. The airflow flows inside the outer casing 1, carrying away the hot air around the circuit board 6 and exhausting it through the vents on the outer casing 1. When the liquid cooling and air cooling methods work together, the heat dissipation efficiency is greatly improved. Throughout the heat dissipation process, the temperature sensor 805 continuously monitors the temperature and feeds the temperature data back to the control system. The control system dynamically adjusts the flow rate of the self-priming pump 802 and the speed of the drive motor 807 based on the real-time temperature. When the temperature drops to a certain level, the control system will appropriately reduce the flow rate of the self-priming pump 802 and the speed of the drive motor 807 to save energy. When the temperature rises again, the flow rate of the self-priming pump 802 and the speed of the drive motor 807 will be increased accordingly to ensure the heat dissipation effect. Through this intelligent temperature control mechanism, the heat dissipation mechanism 8 can always work efficiently and stably, ensuring the normal operation of the motor controller.

[0022] Further, the threading plate 3 is installed on one side of the shell 1 through the clamping plate 4 and the mounting slot 2, and the outer wall size of the clamping plate 4 matches the inner wall size of the mounting slot 2. Through the setting of the mounting slot 2 and the clamping plate 4, the stable connection and accurate installation of the threading plate 3 and the shell 1 are realized. The size matching design enables the clamping plate 4 to be tightly embedded in the mounting slot 2, avoiding the shaking and displacement of the threading plate 3 during use, ensuring the stability of the overall structure. At the same time, this accurate installation method also facilitates the installation and disassembly operation of the threading plate 3. When the controller needs to be repaired, maintained or the threading plate 3 needs to be replaced, the operator can easily disassemble the threading plate 3 from the shell 1, improving the maintenance efficiency and reducing the maintenance cost. In addition, the stable connection can also prevent foreign matters such as dust and water vapor from entering the controller from the connection between the threading plate 3 and the shell 1, causing damage to the circuit board 6 and other elements, prolonging the service life of the controller.

[0023] Further, the threading holes 5 are provided on the surface of the threading plate 3 in multiple groups, and the hole diameters of the threading holes 5 are different. Through the setting of the threading holes 5, the flexibility and convenience of the controller wiring are greatly improved. The multiple groups of threading holes 5 with different hole diameters can meet the threading needs of cables with different specifications and different numbers. For thinner signal lines, smaller-diameter threading holes 5 can be selected to ensure the neat arrangement of the cables and avoid mutual interference. For thicker power lines or power lines, larger-diameter threading holes 5 can be used to ensure that the cables can pass through smoothly and will not be damaged due to too small hole diameter. This diversified threading selection also facilitates the planning and arrangement of wiring, making the layout of the cables in the controller more reasonable, reducing the cross and entanglement of the cables, and helping to improve the stability and reliability of signal transmission. At the same time, it is also convenient for subsequent troubleshooting and maintenance work.

[0024] Further, the mounting mechanism 7 comprises a clamping groove 701, a cover plate 702, a clamping block 703, a positioning hole 704, a spring 705, a pulling block 706, a positioning rod 707, a clamping hole 708, a fixing hole 709, a fixing bolt 710 and a ventilation hole 711, the upper portion of the shell 1 is provided with the clamping groove 701, the upper portion of the shell 1 is provided with the cover plate 702, the two ends of the cover plate 702 are fixedly connected with the clamping block 703, the upper surface of the clamping block 703 is provided with the positioning hole 704, the outer side of the positioning hole 704 is fixedly connected with the spring 705, the top end of the spring 705 is fixedly connected with the pulling block 706, the bottom end of the pulling block 706 is fixedly connected with the positioning rod 707, the inside of the clamping groove 701 is provided with the clamping hole 708, the inside of the clamping groove 701 is also provided with the fixing hole 709, the inside of the fixing hole 709 penetrates through the fixing bolt 710, and the surface of the cover plate 702 is provided with the ventilation hole 711, through the setting of the mounting mechanism 7, when the cover plate 702 needs to be mounted on the shell 1, the operator first holds the cover plate 702, aligns the clamping blocks 703 at the two ends of the cover plate 702 with the clamping groove 701 provided at the upper portion of the shell 1, and the outer wall size of the clamping block 703 and the inner wall size of the clamping groove 701 are matched with each other, so that the clamping block 703 can be smoothly inserted into the clamping groove 701, before the clamping block 703 is inserted, the operator pulls the pulling block 706 upwards, at this time, the pulling block 706 drives the positioning rod 707 fixedly connected therewith to move upwards, and at the same time, the spring 705 outside the positioning hole 704 is stretched, so that the spring 705 is in a stretched state and stores elastic potential energy, when the clamping block 703 is completely inserted into the clamping groove 701, the clamping hole 708 inside the clamping groove 701 corresponds to the position of the positioning rod 707, at this time, the operator releases the pulling block 706, the spring 705 releases the elastic potential energy, rapidly contracts and drives the pulling block 706 to move downwards, and then the positioning rod 707 is inserted into the clamping hole 708, in this way, through the elastic force of the spring 705, the positioning rod 707 and the clamping hole 708 are tightly matched, the clamping block 703 is fixedly arranged in the clamping groove 701, the preliminary positioning and connection of the cover plate 702 and the shell 1 are realized, in order to further enhance the stability of the connection, the operator inserts the fixing bolt 710 into the fixing hole 709 provided inside the clamping groove 701, and the fixing bolt 710 and the fixing hole 709 are tightly matched through threads or the like, so as to prevent the cover plate 702 from loosening or falling off due to vibration or the like during the driving of the electric vehicle, and to ensure the structural stability of the whole controller, the ventilation hole 711 provided on the surface of the cover plate 702 plays an important role in heat dissipation and ventilation during the working of the controller, when the circuit board 6 and other elements inside the controller work and generate heat, hot air will be discharged to the outside through the ventilation hole 711, at the same time, cold air outside can also enter the inside of the controller through the ventilation hole 711, air convection is formed, which is helpful to take away heat, reduce the temperature inside the controller and improve the heat dissipation efficiency, so as to ensure that the controller can work stably in a suitable temperature environment, when the inside of the controller needs to be repaired or maintained, the operator first unscrews the fixing bolt 710 to release the fixing effect of the fixing bolt 710 on the cover plate 702, thenPull the pull block 706 upward again, and pull the positioning rod 707 out of the clamping hole 708 to release the locking of the clamping block 703 by the spring 705. At this time, the operator can easily take off the cover plate 702 from the shell 1, and check, repair or replace the circuit board 6, heat dissipation mechanism 8 and other components inside the controller.

[0025] Further, the cooling liquid boxes 801 and the self-suction pumps 802 are arranged in the same four groups on the inner bottom side of the shell 1, and two circulating heat dissipation pipes 803 are arranged between each two groups. Through the arrangement of the cooling liquid boxes 801, the self-suction pumps 802 and the circulating heat dissipation pipes 803, the heat dissipation performance and reliability of the motor controller are significantly improved. The arrangement of the four groups of cooling liquid boxes 801 and self-suction pumps 802 increases the storage capacity and circulation power of the cooling liquid, which can ensure that there is enough cooling liquid to participate in the circulation heat dissipation. The two circulating heat dissipation pipes 803 between each two groups enable the cooling liquid to be more widely and uniformly distributed inside the shell 1 and fully contact with the heat generating elements such as the circuit board 6 to more efficiently absorb heat. When the controller generates a large amount of heat during high-load operation, multiple cooling liquid circulation systems can work simultaneously to quickly remove heat and control the temperature of the controller within a safe range, reducing performance degradation and component damage caused by overheating, and ensuring stable and efficient operation of the motor controller.

[0026] Further, the cover plate 702 is installed at the top end of the shell 1 through the clamping block 703 and the clamping slot 701, and the outer wall size of the clamping block 703 matches the inner wall size of the clamping slot 701. Through the arrangement of the clamping slot 701 and the clamping block 703, the cover plate 702 is precisely installed and stably connected with the shell 1. The matched size design enables the clamping block 703 to be tightly embedded in the clamping slot 701, preventing the cover plate 702 from shaking or shifting due to vibration during driving of the electric vehicle. This tight connection also effectively prevents foreign matter such as dust and water vapor from entering the inside of the controller, protecting the precision components such as the circuit board 6 from damage. At the same time, the precise installation method facilitates the installation and disassembly operations of the operator, improves the maintenance efficiency, and reduces the maintenance difficulty and cost.

[0027] Further, the card slot 701 is provided with the same four groups on the surface of the shell 1, and the inside of one group is provided with the clamping hole 708, and the inside of the other three groups is provided with the fixing hole 709. Through the setting of the card slot 701, the clamping hole 708 and the fixing hole 709, the stability and reliability of the connection between the cover plate 702 and the shell 1 are enhanced. The four groups of card slots 701 provide multiple fixing points for the cover plate 702, so that the cover plate 702 can bear the external force more evenly. The clamping hole 708 cooperates with the positioning rod 707 to realize the preliminary positioning and pre-fixing of the cover plate 702, preventing it from deviating during installation. The other three groups of fixing holes 709 cooperate with the fixing bolt 710 to further enhance the stability of the connection, ensuring that the cover plate 702 will not loosen or fall off during long-term use, providing reliable protection for the internal elements of the motor controller and ensuring the normal operation of the entire controller.

[0028] Working principle: when the electric car starts, the whole air-cooled split type electric car motor controller starts to work in an orderly manner, the power cable is connected through the threading holes 5 of different diameters on the threading plate 3, the multiple groups of different size threading holes 5 allow various cables to be arranged in their respective places, the thin signal line passes through the small hole to ensure neat arrangement and no interference, the thick power line passes through the large hole smoothly without obstruction, which not only facilitates wiring planning, but also improves the stability of signal transmission, the threading plate 3 is stably installed on one side of the shell 1 through the close cooperation of the clamping plate 4 and the mounting groove 2, preventing external dust and water vapor from invading and protecting the internal circuit board 6, the circuit board 6 as the core control unit quickly enters the working state after being powered on, it receives signals from various parts of the electric car, such as acceleration demand signals from the accelerator handle, brake signals from the brake system, and real-time running parameter signals from the motor, etc., the circuit board 6 accurately analyzes and processes these signals according to the built-in control algorithm, and then sends corresponding control instructions to the motor to adjust the speed, torque and steering of the motor, so that the electric car can smoothly run according to the driver's intention, during the operation of the controller, the electronic components on the circuit board 6 work continuously and inevitably generate a large amount of heat, at this time, the cooling mechanism 8 shows strong cooling capacity, the temperature sensor 805 installed at both ends of the bearing box 804 monitors the temperature change inside the shell 1 at all times, once the temperature exceeds the preset safety threshold, the temperature sensor 805 immediately transmits the signal to the control system, the control system responds quickly and starts the self-priming pump 802 and the drive motor 807, the four groups of cooling liquid boxes 801 and the self-priming pump 802 work cooperatively, the self-priming pump 802 draws the cooling liquid from the cooling liquid boxes 801 and delivers it to the circulating cooling pipes 803 through the output end, the two circulating cooling pipes 803 between every two groups of cooling liquid circulation systems enable the cooling liquid to be widely and uniformly distributed inside the shell 1, closely adhering to the circuit board 6, efficiently absorbing the heat generated by the circuit board 6, the cooling liquid that has absorbed the heat flows back to the cooling liquid boxes 801 for cooling and heat dissipation, forming a continuous and efficient liquid cooling circulation, at the same time, the drive motor 807 drives the rotating shaft 808 to rotate at high speed, the cooling fan 809 at one end of the rotating shaft 808 rotates with it, generating a strong airflow, the airflow flows inside the shell 1, taking away the hot air around the circuit board 6 and discharging it to the outside through the ventilation openings on the shell 1, while the air holes 711 on the cover plate 702 also play an important role, they allow hot air to be discharged while allowing cold air from the outside to enter, enhancing air convection and further improving cooling efficiency, during the whole cooling process, the temperature sensor 805 continuously monitors the temperature and feeds back to the control system, the control system dynamically adjusts the flow of the self-priming pump 802 and the speed of the drive motor 807 according to the real-time temperature, when the temperature decreases to a certain extent, the flow and speed are reduced to save energy, when the temperature rises again, the flow and speed are increased in time to ensure the cooling effect, the mounting mechanism 7 provides a reliable structural guarantee for the whole controller, the four groups of clamping grooves 701 are distributed on the surface of the shell 1,The cover plate 702 is installed at the top end of the shell 1 through the precise cooperation of the clamping block 703 and the clamping groove 701, the clamping hole 708 and the positioning rod 707 are preliminarily positioned and pre-fixed under the action of the spring 705, the three groups of fixing holes 709 and the fixing bolts 710 are tightly matched, further reinforcing the connection, so that the cover plate 702 can stably protect the internal components and withstand the vibration and bumping during the driving process of the electric vehicle, when the controller needs to be overhauled or maintained, the operator only needs to unscrew the fixing bolt 710, pull the pull block 706 to pull out the positioning rod 707 from the clamping hole 708, and then easily take down the cover plate 702, check and repair the internal circuit board 6, the heat dissipation mechanism 8 and the like, after the repair is completed, the cover plate 702 can be quickly installed back to the original position according to the installation steps, and the normal work of the controller is restored, the type of the driving motor 807 is Y315S-2, so that the use process of the air-cooled split type electric vehicle motor controller is completed.

[0029] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A wind-cooled split type electric vehicle motor controller comprising a housing (1), characterized in that: The side of the shell (1) is internally provided with a mounting groove (2), one side of the shell (1) is provided with a threading plate (3), both ends of the threading plate (3) are fixedly connected with clamping plates (4), the surface of the threading plate (3) is provided with a threading hole (5), the inside of the shell (1) is provided with a circuit board (6), the surface of the shell (1) is provided with a mounting mechanism (7), and the inside of the shell (1) is provided with a heat dissipation mechanism (8). The heat dissipation mechanism (8) comprises a cooling liquid box (801), a self-suction pump (802), a circulating heat dissipation pipe (803), a bearing box (804), a temperature sensor (805), a motor shell (806), a driving motor (807), a rotating shaft (808) and a heat dissipation fan (809), the inside of the shell (1) is provided with the cooling liquid box (801), the upper side of the cooling liquid box (801) is provided with the self-suction pump (802), the output end of the self-suction pump (802) is provided with the circulating heat dissipation pipe (803), the inside of the shell (1) is provided with the bearing box (804), both ends of the bearing box (804) are provided with the temperature sensor (805), the inside of the bearing box (804) is provided with the motor shell (806), the inside of the motor shell (806) is provided with the driving motor (807), the output end of the driving motor (807) is fixedly connected with the rotating shaft (808), and one end of the rotating shaft (808) is provided with the heat dissipation fan (809).

2. The air-cooled split type electric vehicle motor controller according to claim 1, characterized in that: The threading plate (3) is mounted on one side of the shell (1) through the clamping plates (4) and the mounting groove (2), and the outer wall size of the clamping plates (4) is consistent with the inner wall size of the mounting groove (2).

3. The air-cooled split type electric vehicle motor controller according to claim 1, characterized in that: The threading hole (5) is provided with a plurality of groups on the surface of the threading plate (3), and the hole diameters of the threading holes (5) are different.

4. The air-cooled split type electric vehicle motor controller according to claim 1, characterized in that: The mounting mechanism (7) comprises a clamping groove (701), a cover plate (702), a clamping block (703), a positioning hole (704), a spring (705), a pulling block (706), a positioning rod (707), a clamping hole (708), a fixing hole (709), a fixing bolt (710) and a ventilation hole (711), the upper side of the shell (1) is provided with the clamping groove (701), the upper side of the shell (1) is provided with the cover plate (702), both ends of the cover plate (702) are fixedly connected with the clamping block (703), the upper surface of the clamping block (703) is provided with the positioning hole (704), the outer side of the positioning hole (704) is fixedly connected with the spring (705), the top end of the spring (705) is fixedly connected with the pulling block (706), the bottom end of the pulling block (706) is fixedly connected with the positioning rod (707), the inside of the clamping groove (701) is provided with the clamping hole (708), the inside of the clamping groove (701) is also provided with the fixing hole (709), the inside of the fixing hole (709) penetrates through the fixing bolt (710), and the surface of the cover plate (702) is provided with the ventilation hole (711).

5. The air-cooled split type electric vehicle motor controller according to claim 1, characterized in that: The cooling liquid boxes (801) and self-suction pumps (802) are arranged in the same four groups on the inner bottom side of the shell (1), and two circulating heat dissipation pipes (803) are arranged between each two groups.

6. The air-cooled split type motor controller of claim 4, wherein: The cover plate (702) is installed at the top end of the shell (1) through the clamping block (703) and the clamping groove (701), and the size of the outer wall of the clamping block (703) is consistent with the size of the inner wall of the clamping groove (701).

7. The air-cooled split-type motor controller of claim 4, wherein: The clamping grooves (701) are arranged in the same four groups on the surface of the shell (1), and a clamping hole (708) is arranged in the inner part of one group, and a fixing hole (709) is arranged in the inner part of each of the other three groups.

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