Electric vehicle motor controller water cooling assembly and control system

Abstract

The invention belongs to the technical field of motor controllers, and discloses an electric vehicle motor controller water cooling assembly and a control system.The water cooling assembly is installed on the lower surface of a motor controller in an attached mode and comprises a shell installed on the lower surface of the motor controller in an attached mode, and side plates are arranged at the two ends of the shell correspondingly; the side plate abuts against the side wall of the motor controller. A corrugated plate is arranged in the shell, and the ends of the two sides of the corrugated plate abut against the side plates on the two sides in a sealed mode respectively. The corrugated plate comprises a plurality of flow channels arranged side by side, the ends of the flow channels abut against the side plates in a sealed mode, a through groove is formed between every two adjacent flow channels in a communicating mode, and a bent cooling liquid channel is formed. The system is simple in structure and convenient to use, the cooling efficiency of the water cooling assembly on the motor controller can be intelligently adjusted in real time according to the vehicle operation working condition, normal heat dissipation of the electric drive system can be effectively guaranteed under different working conditions, the performance of the electric drive system is improved, and the service life of the electric drive system is prolonged.

Description

Technical Field

[0001] The present invention relates to the technical field of motor controllers, and in particular to a water cooling component and a control system for a motor controller of an electric vehicle. Background Art

[0002] In electric vehicles, the motor controller is a key component for controlling the operation of the motor, and its performance stability is of vital importance. An effective cooling system is an important factor in ensuring the normal operation of the motor controller.

[0003] Existing motor controller cooling systems generally use air cooling or water cooling to cool down power devices, but air cooling requires the design of a heat dissipation fan and a large-area heat sink, which increases the size of the controller; water cooling is usually achieved through a water-cooled plate. The structure of the existing water-cooled plate is to embed a winding copper tube into an aluminum plate, and achieve circulating water cooling by passing coolant into the copper tube. However, its manufacturing process is complex and the material cost is high. In addition, the copper tube is limited by the material properties and cannot achieve a longer heat dissipation path. In order to ensure the pressure-bearing strength, the aluminum plate needs to have a certain thickness, which will increase the mass, so it can no longer meet the needs; secondly, the control of the existing water-cooling component control system is not precise enough, and the water pump speed and fan speed are only controlled based on a simple temperature threshold. This method cannot fully consider the differences in heat dissipation requirements of the electric drive system under different working conditions (such as high-speed driving, climbing, rapid acceleration, etc.). Moreover, the comprehensive and coordinated control of multiple parameters such as coolant temperature, flow, and pressure is not perfect, which can easily lead to problems such as low heat dissipation efficiency or energy waste; third, the existing water-cooling component control system lacks the ability to quickly detect and adaptively adjust the water-cooling component's own faults. Once a partial failure of the water-cooling component occurs (such as slight wear of the water pump resulting in reduced flow, partial blockage of the radiator, etc.), it may not be possible to detect and adjust the control strategy in time to maintain normal heat dissipation of the electric drive system.

[0004] Therefore, the present application designs an electric vehicle motor controller water cooling component and control system to solve the above-mentioned technical problems. Summary of the invention

[0005] The purpose of the present invention is to provide a water cooling component and a control system for an electric vehicle motor controller to solve the problems existing in the prior art.

[0006] To achieve the above object, the present invention provides the following solution: The present invention provides a water cooling assembly for an electric vehicle motor controller, the water cooling assembly being mounted on the lower surface of the motor controller, the water cooling assembly comprising a shell mounted on the lower surface of the motor controller, side plates being respectively arranged at both ends of the shell, the side plates being abutted against the side walls of the motor controller; A corrugated plate is arranged in the shell, and the ends of the corrugated plate on both sides are respectively in sealing contact with the side plates on both sides; The corrugated plate comprises a plurality of flow channels arranged in parallel, the ends of the flow channels are in sealing contact with the side plates, and adjacent flow channels are connected by through grooves to form bent coolant channels.

[0007] Preferably, the side plate is provided with mounting holes, and the two mounting holes are respectively arranged corresponding to the flow channels on both sides, and connectors are arranged in the mounting holes, and the connectors connect the corresponding flow channels with the outside.

[0008] Preferably, the side plate is provided with a raised portion corresponding to the flow channel, and the raised portion is sealed and inserted into the end of the flow channel during connection.

[0009] The present invention also discloses a control system based on a water cooling component of an electric vehicle motor controller, comprising a data acquisition module for measuring parameters of the motor controller, wherein the data acquisition module is data-connected to a working condition identification and analysis module, wherein the working condition identification and analysis module is data-connected to a heat dissipation demand calculation module and an electronic control unit, wherein the data acquisition module and the electronic control unit collect the parameters of the motor controller and transmit them to the working condition identification and analysis module, and control the water cooling component to cool the motor controller through a control instruction execution module.

[0010] Preferably, the operating condition identification and analysis module is data-connected to a heat dissipation demand calculation module, the heat dissipation demand calculation module is data-connected to a control strategy generation module, the control strategy generation module is data-connected to the control instruction execution module, the heat dissipation demand calculation module calculates the current heat dissipation demand and matches it with the current operating condition, and then generates a control strategy through the control strategy generation module, which is controlled and executed by the control instruction execution module.

[0011] Preferably, the control strategy generation module is data-connected with a fault diagnosis and adaptive adjustment module, and the fault diagnosis and adaptive adjustment module is data-connected with the control instruction execution module. The fault diagnosis and adaptive adjustment module performs fault detection and feedback on the water cooling component, and adaptively adjusts the control strategy of the control strategy generation module.

[0012] Preferably, the control instruction execution module includes a water pump driver, a fan controller and a valve driver which are respectively data-connected to the fault diagnosis and adaptive adjustment module to control the cooling parameters of the water cooling component.

[0013] Preferably, the data acquisition module includes a pressure sensor, a flow sensor and a temperature sensor which are respectively connected to the working condition identification and analysis module, the pressure sensor detects the internal pressure of the water cooling component, the flow sensor detects the flow value of the coolant in the water cooling component, and the temperature sensor measures the temperature of the motor controller.

[0014] Preferably, the faults of the water cooling component detected by the fault diagnosis and adaptive adjustment module include water pump fault, radiator fault and sensor fault.

[0015] Preferably, the operating condition identification and analysis module obtains the operating parameters of the vehicle through the electronic control unit, and simultaneously obtains the operating parameters of the motor from the motor controller, and determines the current operating condition type of the vehicle based on the operating parameters of the vehicle and the working status of the motor.

[0016] Compared with the prior art, the present invention has the following advantages and technical effects: the present invention discloses a water-cooling component for an electric vehicle motor controller, which utilizes a corrugated plate to divide the inner cavity of an outer shell into a plurality of parallel and independent flow channels. Compared with the prior water-cooling plate, the water-cooling component has the advantages of simple process and low cost, and a longer heat dissipation path can be achieved by increasing the number of corrugations of the corrugated plate, thereby improving the heat dissipation efficiency of the motor controller, ensuring the stable operation of the motor controller, improving the performance and service life of the electric drive system, and improving the safety of vehicle operation; by utilizing the anti-bending property of the corrugated plate itself and the raised portion on the side plate, the shell can have good pressure-bearing strength while reducing the weight of the device and the load on the vehicle; the operating state of the water-cooling component is adjusted according to actual needs, thereby avoiding energy waste caused by excessive heat dissipation at low loads, reducing unnecessary energy consumption, and improving the vehicle's endurance.

[0017] The present invention has a simple structure and is easy to use. It can intelligently and real-time adjust the cooling efficiency of the water cooling component on the motor controller according to the vehicle operating conditions, effectively ensure the normal heat dissipation of the electric drive system under different working conditions, and improve the performance and service life of the electric drive system. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings constituting a part of the present application are used to provide a further understanding of the present application. The illustrative embodiments and descriptions of the present application are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings: Figure 1 It is a schematic diagram of the three-dimensional structure of the water cooling assembly of the present invention; Figure 2 It is an exploded view of the three-dimensional structure of the water cooling assembly of the present invention; Figure 3 It is a schematic diagram of the three-dimensional structure of the corrugated plate of the present invention; Figure 4 It is a structural block diagram of the water cooling component control system of the present invention; Figure 5 The present invention is a flowchart of the water cooling component control system.

[0019] In the figure: 1. Motor controller; 2. Water cooling component; 3. Data acquisition module; 4. Working condition identification and analysis module; 5. Heat dissipation demand calculation module; 6. Control strategy generation module; 7. Fault diagnosis and adaptive adjustment module; 8. Control instruction execution module; 9. Electronic control unit; 21. Shell; 22. Corrugated plate; 23. Flow channel; 24. Through groove; 25. Side plate; 26. Raised part; 27. Mounting hole; 28. Connector; 31. Pressure sensor; 32. Flow sensor; 33. Temperature sensor; 81. Water pump driver; 82. Fan controller; 83. Valve driver. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0022] Reference Figure 1-Figure 3 As shown, this embodiment provides a water cooling assembly for an electric vehicle motor controller. The water cooling assembly 2 is mounted on the lower surface of the motor controller 1. The water cooling assembly 2 includes a housing 21 mounted on the lower surface of the motor controller 1. Side plates 25 are respectively provided at both ends of the housing 21. The side plates 25 abut against the side walls of the motor controller 1. A corrugated plate 22 is disposed in the housing 21, and the ends of the corrugated plate 22 are sealed against the side plates 25 on both sides respectively; The corrugated plate 22 includes a plurality of flow channels 23 arranged in parallel. The ends of the flow channels 23 are sealed against the side plates 25. Adjacent flow channels 23 are connected by through grooves 24 to form bent coolant channels.

[0023] The present invention discloses a water-cooling assembly for an electric vehicle motor controller. The water-cooling assembly 2 is fitted at the bottom end of the motor controller 1 to facilitate heat conduction. The water-cooling assembly 2 includes a shell 21, a corrugated plate 22 is fixedly connected inside the shell 21, side plates 25 are arranged on both sides of the corrugated plate 22, and the two side plates 25 are respectively fixedly connected to the outer walls of the shell 21 on both sides. The water-cooling assembly 2 uses the corrugated plate 22 to separate and guide the coolant, and uses the side plates 25 to seal the two ends of the shell 21. A plurality of flow channels 23 and through grooves 24 are arranged on the corrugated plate 22, and adjacent flow channels 23 are connected by the through grooves 24. The flow channels 23 and the through grooves 24 are both used for the circulation of the coolant, which facilitates the flow of the coolant. The water-cooling assembly 2 uses the corrugated plate 22 to divide the inner cavity of the shell 21 into a plurality of side-by-side and independent The independent flow channel 23 has the advantages of simple process and low cost compared with the existing water cooling plate, and a longer heat dissipation path can be achieved by increasing the number of corrugations of the corrugated plate 22, thereby improving the heat dissipation efficiency of the motor controller 1, ensuring the stable operation of the motor controller 1, improving the performance and service life of the electric drive system, and improving the safety of vehicle operation; by utilizing the anti-bending property of the corrugated plate 22 itself and the support on the side plate 25, the shell 21 can have good pressure bearing strength while reducing the weight of the device and the load of the vehicle; the operating state of the water cooling component 2 is adjusted according to actual needs, avoiding energy waste caused by excessive heat dissipation at low load, reducing unnecessary energy consumption, improving the endurance of the vehicle, and avoiding the influence of insufficient heat dissipation on the motor controller 1. The present invention has a simple structure and is easy to use. It can intelligently and real-time adjust the cooling efficiency of the water cooling component 2 to the motor controller 1 according to the vehicle operating conditions, and can effectively ensure the normal heat dissipation of the electric drive system under different working conditions, and improve the performance and service life of the electric drive system.

[0024] In one embodiment of the present application, the motor controller 1 is mainly composed of a main control board, a drive board, an IGBT, a current sensor, a supporting capacitor, a passive discharge resistor, a copper bus, a heat sink, a casing, a connector, a wiring harness and the like, wherein the heat sink is the main heat dissipation component, which is in contact with and connected to the casing 21 to facilitate heat dissipation and ensure the normal operation of the motor controller 1.

[0025] In one embodiment of the present application, after installation, the two side panels 25 are abutted against the side walls of the motor controller 1 and clamped and tightened, so that the water cooling assembly 2 and the motor controller 1 fit together, and the main heat generating surface of the motor controller 1 abuts against the top surface of the shell 21 to achieve contact heat conduction and increase heat dissipation efficiency.

[0026] In one embodiment of the present application, a flexible gasket is provided on the contact surface between the side plate 25 and the motor controller 1 . The gasket is made of a high thermal conductivity material to increase the firmness of the connection between the two while avoiding damage to the motor controller 1 .

[0027] As a further optimization scheme, mounting holes 27 are provided on the side plate 25. Two mounting holes 27 are respectively provided corresponding to the flow channels 23 on both sides. Connectors 28 are provided in the mounting holes 27. Connectors 28 connect the corresponding flow channels 23 with the outside. The mounting holes 27 are used to install connectors 28. The two connectors 28 are respectively connected to the water inlet pipe and the water outlet pipe, and are respectively used to connect to the input end and the output end of the coolant circulation device. The coolant enters the housing 21 from one of the connectors 28, flows along the flow channel 23 on the corrugated plate 22, and flows from the through groove 24 to the next adjacent flow channel 23 at the end of the flow direction, forming a tortuous flow of the coolant until it is discharged from another connector 28, thereby achieving heat dissipation of the motor controller 1.

[0028] In a further optimized solution, a protrusion 26 corresponding to the flow channel 23 is provided on the side plate 25, and the protrusion 26 is sealed and inserted into the end of the flow channel 23 when connected. The side plate 25 is used to close the two ends of the shell 21 to prevent the coolant in the flow channel 23 from leaking. The protrusion 26 is inserted into the corresponding end of the flow channel 23 after being installed in place, which is used to improve the strength of the corrugated plate 22, prevent the end of the flow channel 23 from being compressed and deformed, improve stability, and at the same time improve the sealing of the end of the flow channel 23.

[0029] See attached Figure 4-Figure 5 As shown, the present invention also discloses a control system based on a water cooling component of an electric vehicle motor controller, including a data acquisition module 3 for measuring parameters of a motor controller 1, the data acquisition module 3 is data-connected to a working condition identification and analysis module 4, the working condition identification and analysis module 4 is data-connected to a heat dissipation demand calculation module 5 and an electronic control unit 9, the data acquisition module 3 and the electronic control unit 9 collect parameters of the motor controller 1 and transmit them to the working condition identification and analysis module 4, and control the water cooling component 2 to cool the motor controller 1 through a control instruction execution module 8. The data acquisition module 3 establishes a data connection with the working condition identification and analysis module 4, and the working condition identification and analysis module 4 establishes data connections with the heat dissipation demand calculation module 5, the motor controller 1 and the electronic control unit 9 respectively. The control instruction execution module 8 establishes a data connection with the water cooling component 2. The working condition identification and analysis module 4 obtains the operating parameters of the vehicle through the electronic control unit 9. At the same time, the data acquisition module 3 collects data through multiple sensors arranged in the electric drive system, and installs a high-precision temperature sensor on the surface of the power module of the motor controller 1 to accurately obtain the temperature of the electric drive component, and then judges the current working condition type of the vehicle according to the operating parameters of the vehicle and the working state of the motor, and then accurately analyzes the working state of the electric drive system under different vehicle working conditions according to the pre-set working condition mode and algorithm, and transmits the information to the working condition identification and analysis module 4 for analysis and processing, and controls the operation of the water cooling component 2 through the control instruction execution module 8, and automatically and intelligently controls the water cooling component 2 to cool the motor controller 1 to ensure the stable operation of the motor controller 1.

[0030] Further optimize the scheme, the working condition identification and analysis module 4 is data-connected with the heat dissipation demand calculation module 5, the heat dissipation demand calculation module 5 is data-connected with the control strategy generation module 6, the control strategy generation module 6 is data-connected with the control instruction execution module 8, the heat dissipation demand calculation module 5 calculates the current heat dissipation demand and matches it with the current working condition, and then generates a control strategy through the control strategy generation module 6, which is controlled and executed by the control instruction execution module 8. The working condition identification and analysis module 4 is data-connected with the heat dissipation demand calculation module 5, the heat dissipation demand calculation module 5 establishes a data connection with the control strategy generation module 6, the control strategy generation module 6 establishes a data connection with the control instruction execution module 8, the heat dissipation demand calculation module 5 combines the real-time operating parameters of the electric drive system, and the heat dissipation demand calculated according to the data of the working condition identification and analysis module 4 should match the current working condition, the control strategy generation module 6 generates a control strategy for the control instruction execution module 8 of the water cooling component 2 according to the result of the heat dissipation demand calculation, and then controls the operation of the water cooling component 2.

[0031] Further optimizing the scheme, the control strategy generation module 6 is data-connected with the fault diagnosis and adaptive adjustment module 7, and the fault diagnosis and adaptive adjustment module 7 is data-connected with the control instruction execution module 8. The fault diagnosis and adaptive adjustment module 7 detects and feeds back the fault of the water cooling component 2, and adaptively adjusts the control strategy of the control strategy generation module 6. The control strategy generation module 6 establishes a data connection with the fault diagnosis and adaptive adjustment module 7, and the fault diagnosis and adaptive adjustment module 7 establishes a data connection with the control instruction execution module 8. After receiving the control strategy, the fault diagnosis and adaptive adjustment module 7 first performs fault diagnosis on each component of the water cooling component 2. If a fault is detected, the control strategy is adaptively adjusted according to the type and severity of the fault, and then the adjusted control instruction is sent to the control instruction execution module 8 to control the water cooling component 2 to cool the motor controller 1.

[0032] Further optimizing the scheme, the control instruction execution module 8 includes a water pump driver 81, a fan controller 82 and a valve driver 83 which are respectively connected to the fault diagnosis and adaptive adjustment module 7, and controls the cooling parameters of the water cooling component 2. The control instruction execution module 8 includes a water pump driver 81, a fan controller 82 and a valve driver 83, which converts the control instruction into a corresponding electrical signal and sends it to the water pump driver 81, the fan controller 82 and the valve driver 83 respectively. The water pump driver 81 adjusts the speed of the water pump according to the received signal, thereby adjusting the circulation speed of the coolant; the fan controller 82 controls the speed and start and stop of the fan, and enhances or weakens the heat dissipation capacity of the radiator; the valve driver 83 controls the opening of the coolant flow regulating valve, and adjusts the flow distribution of the coolant in the water cooling system, thereby completing the cooling parameter adjustment of the water cooling component 2 system, and adapting to the adaptive cooling of the motor controller 1. Specifically, when the external ambient temperature is low, the electric drive system is in low-power operation and the thermal conductivity of the coolant is within the normal range, and the heat dissipation demand is small, the speed of the water pump and the speed of the radiator fan in the water cooling component 2 can be appropriately reduced to save energy and maintain the stability of the electric drive system; on the contrary, when the external ambient temperature is high, the electric drive system is in high-power operation and the thermal conductivity of the coolant decreases, the heat dissipation demand is large, and the speed of the water pump is increased to increase the circulation speed of the coolant, and at the same time, the opening of the coolant flow regulating valve is increased to allow more coolant to flow through the heat-generating components of the electric drive system, and the speed of the radiator fan is increased to enhance the heat exchange capacity between the radiator and the outside air.

[0033] In one embodiment of the present application, under special operating conditions such as rapid acceleration or deceleration of the electric drive system, the present application can predict the temperature change trend in advance, and adjust the control parameters of the water cooling component 2 in advance according to the prediction results. For example, during rapid acceleration, the water pump speed is increased in advance to cope with the upcoming temperature increase.

[0034] In one embodiment of the present application, when the heat dissipation demand calculated by the heat dissipation demand calculation module 5 is abnormally high or low, data should be re-collected and a new calculation should be performed.

[0035] Further optimizing the scheme, the data acquisition module 3 includes a pressure sensor 31, a flow sensor 32 and a temperature sensor 33 which are respectively connected to the working condition identification and analysis module 4. The pressure sensor 31 detects the internal pressure of the water cooling component 2, the flow sensor 32 detects the flow value of the coolant in the water cooling component 2, and the temperature sensor 33 measures the temperature of the motor controller 1. The data acquisition module 3 collects data through multiple sensors arranged in the electric drive system. A high-precision temperature sensor 33 is installed on the surface of the power module of the motor controller 1 to accurately obtain the temperature of the electric drive component; a flow sensor 32 is installed at the inlet and outlet of the coolant circulation pipeline to measure the flow of the coolant; and a pressure sensor 31 is installed at the key node of the pipeline to measure the internal pressure of the water cooling component 2.

[0036] According to a further optimization scheme, the faults of the water cooling assembly 2 detected by the fault diagnosis and adaptive adjustment module 7 include water pump fault, radiator fault and sensor fault.

[0037] The control process of the water cooling component 2 is as follows: when the water cooling component 2 is controlled, the temperature value of the motor controller 1, the flow value of the coolant and the pressure value inside the water cooling component 2 are collected through the data acquisition module 3, and the collected data are transmitted to the working condition identification and analysis module 4. At the same time, the vehicle operating parameters are obtained in combination with the electronic control unit 9, and the motor operating parameters are obtained through the motor controller 1, and the working state of the electric drive system under different working conditions is analyzed, and the analysis results are transmitted to the heat dissipation demand calculation module 5, and the current heat dissipation demand is calculated and matched with the current working condition. If the heat dissipation demand is abnormally high or low, the data should be collected again and a new calculation should be performed; the heat dissipation demand should be calculated. The data results of the heat demand calculation are passed to the control strategy generation module 6, and then the control strategy is generated for the water pump driver 81, the fan controller 82 and the valve driver 83 of the water cooling component 2 and passed to the fault diagnosis and adaptive adjustment module 7; after receiving the control strategy, the fault diagnosis and adaptive adjustment module 7 first performs fault diagnosis on the various components of the water cooling component 2. If a fault is detected, the control strategy will be adaptively adjusted, and then the adjusted control instructions will be sent to the control instruction execution module 8; the control instruction execution module 8 is used to execute the control instructions for the water pump driver 81, the fan controller 82 and the valve driver 83.

[0038] The water-cooling component control system of the present invention adopts a modular design. By collecting multiple parameters of the electric drive system and the water-cooling component 2 in real time, the heat dissipation requirements of the electric drive system are calculated, and it can accurately determine whether the heat dissipation capacity of the water-cooling component 2 meets the heat dissipation requirements of the electric drive system, thereby realizing dynamic and intelligent control; the fault diagnosis and adaptive adjustment module 7 can monitor the operating status of the water-cooling component 2 in real time, promptly discover the faults in the water-cooling component 2, and adaptively adjust it, thereby improving the accuracy and adaptability of the entire control system, and can effectively ensure the normal heat dissipation of the electric drive system under different working conditions, and improve the performance and service life of the electric drive system; because the operating status of the water-cooling component 2 is adjusted according to actual needs, unnecessary energy consumption is reduced, and energy waste caused by excessive heat dissipation at low load is avoided.

[0039] The water cooling component 2 control system of the present invention adopts a more intelligent module design. Based on a comprehensive consideration of the actual working conditions of the electric drive system, it accurately calculates the heat dissipation requirements under different operating conditions, can detect faults in a timely and effective manner, and adaptively adjust the control strategy to improve heat dissipation efficiency and system reliability.

[0040] In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0041] The embodiments described above are only descriptions of the preferred modes of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should all fall within the protection scope determined by the claims of the present invention.

Claims

1. A water cooling assembly for an electric vehicle motor controller, wherein the water cooling assembly (2) is mounted on the lower surface of the motor controller (1), and is characterized in that: The water cooling assembly (2) comprises a shell (21) mounted on the lower surface of the motor controller (1), and side plates (25) are respectively provided at both ends of the shell (21), and the side plates (25) abut against the side walls of the motor controller (1); A corrugated plate (22) is provided in the shell (21), and ends on both sides of the corrugated plate (22) are in sealing contact with the side plates (25) on both sides respectively; The corrugated plate (22) comprises a plurality of flow channels (23) arranged in parallel, the ends of the flow channels (23) being in sealing contact with the side plates (25), and adjacent flow channels (23) being connected by through grooves (24) to form bent coolant channels.

2. The electric vehicle motor controller water cooling assembly according to claim 1, characterized in that: The side plate (25) is provided with a mounting hole (27), the two mounting holes (27) being respectively arranged corresponding to the flow channels (23) on both sides, and a connector (28) being arranged in the mounting hole (27), the connector (28) connecting the corresponding flow channel (23) with the outside.

3. The electric vehicle motor controller water cooling assembly according to claim 1, characterized in that: The side plate (25) is provided with a raised portion (26) corresponding to the flow channel (23); when connected, the raised portion (26) is sealed and inserted into the end of the flow channel (23).

4. A water cooling control system for an electric vehicle motor controller, based on the electric vehicle motor controller water cooling assembly according to any one of claims 1 to 3, characterized in that: The invention comprises a data acquisition module (3) for measuring the parameters of the motor controller (1); the data acquisition module (3) is data-connected to a working condition identification and analysis module (4); the working condition identification and analysis module (4) is data-connected to a heat dissipation demand calculation module (5) and an electronic control unit (9); the data acquisition module (3) and the electronic control unit (9) acquire the parameters of the motor controller (1) and transmit them to the working condition identification and analysis module (4); and control the water cooling component (2) to cool the motor controller (1) through a control instruction execution module (8).

5. The electric vehicle motor controller water cooling control system according to claim 4, characterized in that: The operating condition identification and analysis module (4) is data-connected to a heat dissipation demand calculation module (5), the heat dissipation demand calculation module (5) is data-connected to a control strategy generation module (6), the control strategy generation module (6) is data-connected to the control instruction execution module (8), the heat dissipation demand calculation module (5) calculates the current heat dissipation demand and matches it with the current operating condition, then generates a control strategy through the control strategy generation module (6), and the control instruction execution module (8) controls execution.

6. The electric vehicle motor controller water cooling control system according to claim 5, characterized in that: The control strategy generation module (6) is data-connected to a fault diagnosis and adaptive adjustment module (7), and the fault diagnosis and adaptive adjustment module (7) is data-connected to the control instruction execution module (8). The fault diagnosis and adaptive adjustment module (7) performs fault detection and feedback on the water cooling component (2), and adaptively adjusts the control strategy of the control strategy generation module (6).

7. The electric vehicle motor controller water cooling control system according to claim 6, characterized in that: The control instruction execution module (8) comprises a water pump driver (81), a fan controller (82) and a valve driver (83) which are respectively data-connected to the fault diagnosis and adaptive adjustment module (7) to control the cooling parameters of the water cooling component (2).

8. The electric vehicle motor controller water cooling control system according to claim 4, characterized in that: The data acquisition module (3) comprises a pressure sensor (31), a flow sensor (32) and a temperature sensor (33) which are respectively connected to the working condition identification and analysis module (4) for data transmission; the pressure sensor (31) detects the internal pressure of the water cooling component (2); the flow sensor (32) detects the flow value of the coolant in the water cooling component (2); and the temperature sensor (33) measures the temperature of the motor controller (1).

9. The electric vehicle motor controller water cooling control system according to claim 7, characterized in that: The faults of the water cooling component (2) detected by the fault diagnosis and adaptive adjustment module (7) include water pump fault, radiator fault and sensor fault.

10. The electric vehicle motor controller water cooling control system according to claim 4, characterized in that: The operating condition identification and analysis module (4) obtains the operating parameters of the vehicle through the electronic control unit (9), and simultaneously obtains the operating parameters of the motor from the motor controller (1), and determines the current operating condition type of the vehicle based on the operating parameters of the vehicle and the working state of the motor.

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