Automobile controller cooling liquid supply and discharge device and supply and discharge system
By designing a coolant supply and drainage device for automotive controllers, the automated supply, return, and drainage of coolant were achieved, solving the problems of cumbersome manual operation and safety hazards in existing technologies, and improving testing efficiency and data accuracy.
Patent Information
- Application Number
- CN202521591990.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-29
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-07-29
AI Technical Summary
In the existing technology, the supply and drainage process of coolant in automotive controllers relies on manual operation, which leads to cumbersome operation procedures, safety hazards, and the risk of distorted test data.
Design a coolant supply and drainage device for an automotive controller, including a supply pipe assembly, a return pipe assembly, an intake pipe assembly, and a drainage pipe assembly. Combined with a solenoid valve and a self-circulating pipe assembly, it realizes automated coolant supply, return, and drainage. A positive pressure gauge ensures connection sealing, a float flow meter monitors flow rate, and a coolant filter and booster pump improve liquid quality.
The system enables automated supply and drainage of coolant, improving testing efficiency, ensuring operational safety, preventing coolant leakage and residue, and ensuring the accuracy of test data.
Smart Images
Figure CN224684561U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of automotive controller testing technology, and in particular relates to an automotive controller coolant supply and drainage device and supply and drainage system. Background Technology
[0002] In the research, development, testing, and verification of automotive controllers, simulating their actual operating conditions is a crucial step. During this process, the power devices inside the controller generate a significant amount of heat, causing its temperature to rise sharply. To ensure testing accuracy, protect the controller from thermal damage, and simulate thermal management performance under real-world conditions, effective cooling of the controller is essential. Currently, the commonly used method is to use a coolant cooler to provide cooling capacity.
[0003] However, the existing process for connecting the coolant pump to the vehicle controller is highly dependent on manual operation. Specifically, operators must manually connect the coolant pump's output / input lines to the controller's coolant inlet and outlet, respectively, and then manually disconnect the lines and drain the coolant after testing. This method has significant drawbacks: first, the operation process is cumbersome, severely limiting testing efficiency; second, manual disassembly is prone to coolant leakage, posing a safety hazard; and third, the draining process cannot completely remove residual coolant from the controller's internal channels, which may distort subsequent test data or even cause electrical short circuits or component corrosion.
[0004] Therefore, there is an urgent need for a coolant supply and drainage device and system for automotive controllers. Utility Model Content
[0005] The purpose of this invention is to address the shortcomings of existing technologies by providing a coolant supply and drainage device and system for automotive controllers, which can realize the functions of coolant supply, return and drainage, improve the automation level of automotive controller testing, ensure operational safety and improve testing efficiency.
[0006] To achieve the above objectives, the present invention adopts the following technical solution:
[0007] A coolant supply and drainage device for an automotive controller, comprising:
[0008] case;
[0009] A liquid supply pipe assembly is provided within the housing, the liquid supply pipe assembly including a first liquid inlet for connection to a coolant compressor and a first liquid outlet for connection to an vehicle controller, so as to supply coolant from the coolant compressor to the vehicle controller;
[0010] A return pipe assembly is provided inside the housing. The return pipe assembly includes a second inlet for connection to the vehicle controller and a second outlet for connection to the coolant compressor, so as to return the coolant in the vehicle controller to the coolant compressor.
[0011] The air intake assembly connected to the liquid supply assembly is used to input compressed air into the vehicle controller.
[0012] The drain pipe assembly connected to the return pipe assembly is used to drain the coolant from the vehicle controller.
[0013] Furthermore, the liquid supply pipe assembly includes a first liquid supply branch pipe, a liquid supply solenoid valve, and a second liquid supply branch pipe connected in sequence. The first liquid inlet is located on the first liquid supply branch pipe, the first liquid outlet is located on the second liquid supply branch pipe, and the air inlet pipe assembly is connected to the second liquid supply branch pipe.
[0014] Furthermore, the return pipe assembly includes a first return branch pipe, a return solenoid valve, and a second return branch pipe connected in sequence. The second inlet is located in the first return branch pipe, the second outlet is located in the second return branch pipe, and the drain pipe assembly is connected to the first return branch pipe.
[0015] Furthermore, the drain pipe assembly includes a first drain branch pipe, a drain solenoid valve, and a second drain branch pipe connected in sequence. The first drain branch pipe is connected to the first return branch pipe, and the second drain branch pipe is provided with a third outlet.
[0016] Furthermore, the intake pipe assembly includes a first intake branch pipe, a first intake solenoid valve, a second intake branch pipe, a second intake solenoid valve, and a third intake branch pipe connected in sequence. The first intake branch pipe is used to input compressed air, the third intake branch pipe is connected to the second liquid supply branch pipe, and the second intake branch pipe is also connected to a positive pressure gauge.
[0017] Furthermore, ball valve switches are provided on the first liquid supply branch pipe, the second liquid supply branch pipe, the first liquid return branch pipe, the second liquid return branch pipe, and the second liquid drain branch pipe.
[0018] Furthermore, it also includes a self-circulating pipe assembly, which includes a first self-circulating branch pipe, a self-circulating solenoid valve, and a second self-circulating branch pipe connected in sequence. The first self-circulating branch pipe is connected to the first supply branch pipe, and the second self-circulating branch pipe is connected to the second return branch pipe.
[0019] Furthermore, a float flow meter is also installed on the first liquid supply branch pipe.
[0020] Furthermore, the second liquid supply branch pipe is also equipped with a coolant filter and a booster pump.
[0021] This utility model also provides an automotive controller coolant supply and drainage system, including a coolant pump, a drain tank, and the aforementioned automotive controller coolant supply and drainage device. The output end of the coolant pump is connected to the first inlet, the input end of the coolant pump is connected to the second outlet, and the drain tank is connected to the drain pipe assembly.
[0022] The beneficial effects of this utility model are:
[0023] This invention achieves cyclical coolant supply to the vehicle controller by setting up a supply pipe assembly and a return pipe assembly; by setting up an air intake pipe assembly connected to the supply pipe assembly and a drain pipe assembly connected to the return pipe assembly, compressed air is injected into the vehicle controller and residual coolant is completely discharged in conjunction with the drain pipe assembly, avoiding the risk of leakage during disassembly; by setting up a positive pressure gauge, real-time pressure monitoring is achieved, which facilitates ensuring the sealed connection between the supply and return pipe assemblies and the vehicle controller; by adding a self-circulating pipe assembly, closed-loop flow of coolant is achieved within the equipment; by setting up a float flow meter, the coolant supply flow rate is visualized and monitored; by setting up a coolant filter and a booster pump, physical filtration of coolant impurities and boosting of supply pressure are achieved. This invention realizes the functions of coolant supply, return, and drainage, improves the automation level of vehicle controller testing, ensures operational safety, and improves testing efficiency. Attached Figure Description
[0024] Appendix Figure 1 This is a schematic diagram of the structure of the automotive controller coolant supply and drainage system of this utility model;
[0025] Appendix Figure 2 This is a schematic diagram of the structure of the automotive controller coolant supply and drainage device of this utility model;
[0026] Appendix Figure 3 This is a schematic diagram of the internal structure of the automotive controller coolant supply and drainage device of this utility model;
[0027] Appendix Figure 4 This is a schematic diagram of the internal structure of the automotive controller coolant supply and drainage device of this utility model;
[0028] In the diagram, the following are the markings: 1-House, 110-Control circuit board, 120-Remote control connection port; 2-Liquid supply pipe assembly, 210-First liquid supply branch pipe, 211-First liquid inlet, 220-Liquid supply solenoid valve, 230-Second liquid supply branch pipe, 231-First liquid outlet; 3-Liquid return pipe assembly, 310-First liquid return branch pipe, 311-Second liquid inlet, 320-Liquid return solenoid valve, 330-Second liquid return branch pipe, 331-Second liquid outlet; 4-Air inlet pipe assembly, 410-First air inlet branch pipe, 420-First air inlet solenoid valve. 430-Second intake branch pipe, 440-Second intake solenoid valve, 450-Third intake branch pipe; 5-Drainage pipe assembly, 510-First drainage branch pipe, 520-Drainage solenoid valve, 530-Second drainage branch pipe, 531-Third outlet; 6-Positive pressure gauge; 7-Ball valve switch; 8-Self-circulation pipe assembly, 810-First self-circulation branch pipe, 820-Self-circulation solenoid valve, 830-Second self-circulation branch pipe; 9-Float flow meter; 10-Coolant filter; 11-Booster pump; 12-Coolant compressor; 13-Drain tank. Detailed Implementation
[0029] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.
[0030] In the description of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0031] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.
[0032] In the embodiments of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.
[0033] See appendix Figure 1 To be continued Figure 4 The figure shows a specific embodiment of the automotive controller coolant supply and drainage device and supply and drainage system provided by this utility model.
[0034] See appendix Figure 2 The automotive controller coolant supply and drainage system includes:
[0035] Casing 1;
[0036] The liquid supply pipe assembly 2 is provided inside the housing 1. The liquid supply pipe assembly 2 includes a first liquid inlet 211 for connecting to the coolant generator 12 and a first liquid outlet 231 for connecting to the vehicle controller, so as to supply coolant from the coolant generator 12 to the vehicle controller.
[0037] The return pipe assembly 3 is provided in the housing 1. The return pipe assembly 3 includes a second inlet 311 for connecting to the vehicle controller and a second outlet 331 for connecting to the coolant compressor 12, so as to return the coolant in the vehicle controller to the coolant compressor 12.
[0038] The air intake pipe assembly 4, which is connected to the liquid supply pipe assembly 2, is used to input compressed air into the vehicle controller.
[0039] The drain pipe assembly 5, which is connected to the return pipe assembly 3, is used to drain the coolant from the vehicle controller.
[0040] See appendix Figure 3In the above embodiment, the operator first connects the output end of the coolant pump 12 to the first inlet 211 and the input end of the coolant pump 12 to the second outlet 331. The operator then connects the coolant input end of the vehicle controller to the first outlet 231 and the coolant output end of the vehicle controller to the second inlet 311. During the test, the coolant from the coolant pump 12 enters the supply pipe group 2 through the first inlet 211 and is delivered to the vehicle controller through the first outlet 231. After cooling the vehicle controller, the coolant will enter the return pipe group 3 through the second inlet 311 from the coolant output end of the vehicle controller and finally flow back to the coolant pump 12 through the second outlet 331, thus realizing the supply and return circulation of coolant between the coolant pump 12 and the vehicle controller. After the test is completed, compressed air is injected into the vehicle controller through the intake manifold 4 and the supply manifold 2 to discharge the residual coolant in the vehicle controller through the return manifold 3 and the drain manifold 5, solving the problem of incomplete manual draining and avoiding the risk of leakage during disassembly. In this embodiment, the housing 1 is also equipped with a control circuit board 110 to facilitate the automated or remote control of the above-mentioned supply, return, and drain processes.
[0041] See appendix Figure 4 In the above embodiment, the liquid supply pipe assembly 2 includes a first liquid supply branch pipe 210, a liquid supply solenoid valve 220, and a second liquid supply branch pipe 230 connected in sequence. A first liquid inlet 211 is located in the first liquid supply branch pipe 210, and a first liquid outlet 231 is located in the second liquid supply branch pipe 230. An air intake pipe assembly 4 is connected to the second liquid supply branch pipe 230. In this embodiment, the liquid supply solenoid valve 220 divides the liquid supply pipe assembly 2 into the first liquid supply branch pipe 210 and the second liquid supply branch pipe 230. For the air intake pipe assembly 4 connected to the second liquid supply branch pipe 230, compressed air can flow through the second liquid supply branch pipe 230 to the vehicle controller to achieve the liquid drainage action. At the same time, during liquid drainage, the liquid supply solenoid valve 220 is in a closed state to prevent compressed air from flowing back to the first liquid supply branch pipe 210. In this embodiment, the liquid supply solenoid valve 220 is controlled by a control circuit board 110.
[0042] See appendix Figure 4In the above embodiment, the return pipe assembly 3 includes a first return branch pipe 310, a return solenoid valve 320, and a second return branch pipe 330 connected in sequence. A second inlet 311 is located in the first return branch pipe 310, and a second outlet 331 is located in the second return branch pipe 330. The drain pipe assembly 5 is connected to the first return branch pipe 310. In this embodiment, the return solenoid valve 320 divides the return pipe assembly 3 into the first return branch pipe 310 and the second return branch pipe 330. During liquid supply and return, the supply solenoid valve 220 and the return solenoid valve 320 are in the open state to realize liquid supply and return circulation; during liquid drainage, the supply solenoid valve 220 and the return solenoid valve 320 are in the closed state to prevent compressed air from entering the coolant compressor 12. In this embodiment, the return solenoid valve 320 is controlled by the control circuit board 110.
[0043] See appendix Figure 4 In the above embodiment, the drain pipe assembly 5 includes a first drain branch pipe 510, a drain solenoid valve 520, and a second drain branch pipe 530 connected in sequence. The first drain branch pipe 510 is connected to the first return branch pipe 310, and the second drain branch pipe 530 is provided with a third outlet 531. In this embodiment, during coolant supply and return, the supply solenoid valve 220 and the return solenoid valve 320 are in the open state while the drain solenoid valve 520 is in the closed state. During coolant draining, the supply solenoid valve 220 and the return solenoid valve 320 are in the closed state while the drain solenoid valve 520 is in the open state. Compressed air enters the vehicle controller through the intake pipe assembly 4 and the second supply branch pipe 230, and then drains the coolant through the first return branch pipe 310, the first drain branch pipe 510, the drain solenoid valve 520, and the second drain branch pipe 530. In this embodiment, the drain solenoid valve 520 is controlled by the control circuit board 110.
[0044] See appendix Figure 4In the above embodiment, the intake pipe assembly 4 includes a first intake branch pipe 410, a first intake solenoid valve 420, a second intake branch pipe 430, a second intake solenoid valve 440, and a third intake branch pipe 450 connected in sequence. The first intake branch pipe 410 is used to input compressed air, the third intake branch pipe 450 is connected to the second liquid supply branch pipe 230, and the second intake branch pipe 430 is also connected to a positive pressure gauge 6. In this embodiment, after the coolant compressor 12 and the vehicle controller are connected, before the test begins, the supply solenoid valve 220, the drain solenoid valve 520, and the return solenoid valve 320 are all closed. The first intake solenoid valve 420 and the second intake solenoid valve 440 are opened to input compressed air into the first intake manifold 410. Since the supply solenoid valve 220 is closed, the compressed air enters the vehicle controller through the second intake manifold 430, the third intake manifold 450, and the second supply manifold 230, and is then output to the first return manifold 310. Since the drain solenoid valve 520 and the return solenoid valve 320 are both closed, the positive pressure gauge 6 connected to the second intake manifold 430 generates a reading. Close the first intake solenoid valve 420 to pause the input of compressed air, wait 60 seconds, and observe whether the reading of the positive pressure gauge 6 remains unchanged. If the reading remains unchanged, it indicates that the connection between the first liquid outlet 231 and the second liquid inlet 311 and the vehicle controller is stable, sealed, and leak-free, and subsequent testing can proceed. Otherwise, it indicates that there is a leak in the connection with the vehicle controller. When it is determined that subsequent testing can proceed, close the second intake solenoid valve 440 to prevent coolant from entering the intake manifold 4. In this embodiment, the first intake solenoid valve 420 and the second intake solenoid valve 440 are also controlled by the control circuit board 110.
[0045] See appendix Figure 4 In the above embodiments, ball valve switches 7 are provided on the first supply branch pipe 210, the second supply branch pipe 230, the first return branch pipe 310, the second return branch pipe 330, and the second drain branch pipe 530. In these embodiments, the ball valve switches 7 can be used to manually shut off the pipeline in an emergency or for maintenance isolation, facilitating equipment repair and component replacement. In this embodiment, a float flow meter 9 is also provided on the first supply branch pipe 210 to achieve visual monitoring of the coolant supply flow rate, facilitating control of the coolant supply flow rate via the ball valve switches 7 on the first supply branch pipe 210. Specifically, hydraulic gauges can also be installed on the first supply branch pipe 210, the second supply branch pipe 230, the first return branch pipe 310, the second return branch pipe 330, and the second drain branch pipe 530 to facilitate observation of the supply pressure.
[0046] See appendix Figure 4In the above embodiment, a self-circulating pipe assembly 8 is also included. The self-circulating pipe assembly 8 includes a first self-circulating branch pipe 810, a self-circulating solenoid valve 820, and a second self-circulating branch pipe 830 connected in sequence. The first self-circulating branch pipe 810 is connected to a first supply branch pipe 210, and the second self-circulating branch pipe 830 is connected to a second return branch pipe 330. In this embodiment, during liquid supply, the supply solenoid valve 220 and the return solenoid valve 320 are in the open state. When drainage is required, the self-circulating solenoid valve 820 of the self-circulating pipe assembly 8 can be opened first, and then the supply solenoid valve 220 and the return solenoid valve 320 can be closed. At this time, the coolant output from the coolant compressor 12 will flow back into the coolant compressor 12 sequentially through the first supply branch pipe 210, the first self-circulating branch pipe 810, the second self-circulating branch pipe 830, and the second return branch pipe 330. Then, the coolant can be drained from the vehicle controller through the intake manifold 4. In this embodiment, by setting up the self-circulating pipe assembly 8, a closed-loop self-circulating flow of coolant is achieved within the equipment. During continuous testing of multiple vehicle controllers, the coolant pump 12 can be kept on without needing to turn it on and off for each vehicle controller tested, reducing operational steps and improving testing efficiency. In this embodiment, the self-circulating solenoid valve 820 is also controlled by the control circuit board 110.
[0047] See appendix Figure 4 In the above embodiment, the second supply branch pipe 230 is also equipped with a coolant filter 10 and a booster pump 11. In this embodiment, the coolant filter 10 is used to physically filter impurities in the coolant, and the booster pump 11 is used to increase the supply pressure to ensure that the coolant entering the vehicle controller is clean and has a stable flow rate.
[0048] See appendix Figure 1 This embodiment also improves an automotive controller coolant supply and drainage system, including a coolant pump 12, a drain tank 13, and the aforementioned automotive controller coolant supply and drainage equipment. The output end of the coolant pump 12 is connected to a first inlet 211, and the input end of the coolant pump 12 is connected to a second outlet 331. The drain tank 13 is connected to the drain pipe assembly 5. In this embodiment, the coolant supply and drainage equipment is provided with a remote control connection port 120 connected to a control circuit board 110, for connecting to a remote control program to facilitate remote control of the aforementioned solenoid valves.
[0049] In summary, this embodiment provides a coolant supply and drainage device and system for an automotive controller. By setting up a supply pipe group 2 and a return pipe group 3, the coolant generator 12 circulates and supplies coolant to the automotive controller. By setting up an air intake pipe group 4 connected to the supply pipe group 2 and a drain pipe group 5 connected to the return pipe group 3, compressed air is injected into the automotive controller and residual coolant is completely drained through the drain pipe group 5, avoiding the risk of leakage during disassembly. By setting up a positive pressure gauge 6, real-time pressure monitoring is achieved, ensuring a sealed connection between the supply pipe group 2 and the return pipe group 3 and the automotive controller. By adding a self-circulating pipe group 8, closed-loop flow of coolant is achieved within the device. By setting up a float flowmeter 9, visual monitoring of the coolant supply flow rate is achieved. By setting up a coolant filter 10 and a booster pump 11, physical filtration of coolant impurities and boosting of supply pressure are achieved. This embodiment can realize the functions of coolant supply, return, and drainage, improving the automation level of automotive controller testing, ensuring operational safety, and improving testing efficiency.
[0050] The embodiments described above are merely one of the preferred embodiments of this utility model. Ordinary variations and substitutions made by those skilled in the art within the scope of the technical solution of this utility model should be included within the protection scope of this utility model.
Claims
1. A coolant supply and drainage device for an automotive controller, characterized in that, include: Shell (1); A liquid supply pipe assembly (2) is provided inside the housing (1). The liquid supply pipe assembly (2) includes a first liquid inlet (211) for connection to the coolant generator (12) and a first liquid outlet (231) for connection to the vehicle controller, so as to supply the coolant of the coolant generator (12) to the vehicle controller. A return pipe assembly (3) is provided in the housing (1). The return pipe assembly (3) includes a second inlet (311) for connecting to the vehicle controller and a second outlet (331) for connecting to the coolant generator (12) to return the coolant in the vehicle controller to the coolant generator (12). The air intake pipe assembly (4), which is connected to the liquid supply pipe assembly (2), is used to input compressed air into the vehicle controller; The drain pipe assembly (5), which is connected to the return pipe assembly (3), is used to drain the coolant from the vehicle controller.
2. The apparatus according to claim 1, wherein The liquid supply pipe assembly (2) includes a first liquid supply branch pipe (210), a liquid supply solenoid valve (220), and a second liquid supply branch pipe (230) connected in sequence. The first liquid inlet (211) is located on the first liquid supply branch pipe (210), and the first liquid outlet (231) is located on the second liquid supply branch pipe (230). The air inlet pipe assembly (4) is connected to the second liquid supply branch pipe (230).
3. The apparatus according to claim 2, wherein The return pipe assembly (3) includes a first return branch pipe (310), a return solenoid valve (320), and a second return branch pipe (330) connected in sequence. The second inlet (311) is located in the first return branch pipe (310), and the second outlet (331) is located in the second return branch pipe (330). The drain pipe assembly (5) is connected to the first return branch pipe (310).
4. The apparatus according to claim 3, wherein The drain pipe assembly (5) includes a first drain branch pipe (510), a drain solenoid valve (520), and a second drain branch pipe (530) connected in sequence. The first drain branch pipe (510) is connected to the first return branch pipe (310), and the second drain branch pipe (530) is provided with a third outlet (531).
5. The apparatus according to claim 4, wherein The intake pipe assembly (4) includes a first intake branch pipe (410), a first intake solenoid valve (420), a second intake branch pipe (430), a second intake solenoid valve (440), and a third intake branch pipe (450) connected in sequence. The first intake branch pipe (410) is used to input compressed air. The third intake branch pipe (450) is connected to the second liquid supply branch pipe (230). The second intake branch pipe (430) is also connected to a positive pressure gauge (6).
6. The apparatus according to claim 4, wherein Ball valve switches (7) are provided on the first liquid supply branch pipe (210), the second liquid supply branch pipe (230), the first liquid return branch pipe (310), the second liquid return branch pipe (330), and the second liquid drain branch pipe (530).
7. The apparatus according to claim 3, wherein It also includes a self-circulating pipe assembly (8), which includes a first self-circulating branch pipe (810), a self-circulating solenoid valve (820), and a second self-circulating branch pipe (830) connected in sequence. The first self-circulating branch pipe (810) is connected to the first supply branch pipe (210), and the second self-circulating branch pipe (830) is connected to the second return branch pipe (330).
8. The apparatus according to claim 2, wherein The first liquid supply branch pipe (210) is also equipped with a float flow meter (9).
9. The apparatus according to claim 2, wherein The second liquid supply branch pipe (230) is also equipped with a coolant filter (10) and a booster pump (11).
10. A coolant supply and drainage system for an automotive controller, characterized in that, The device includes a coolant generator (12), a drain tank (13), and a coolant supply and drainage device for an automotive controller as described in any one of claims 1-9. The output end of the coolant generator (12) is connected to the first inlet (211), the input end of the coolant generator (12) is connected to the second outlet (331), and the drain tank (13) is connected to the drain pipe assembly (5).