Controller and vehicle

Abstract

The embodiment of the utility model relates to the technical field of automobile motor controllers, and particularly discloses a controller and a vehicle, the controller comprises a box body and a heat dissipation mechanism, the box body comprises a shell and a mounting plate, the mounting plate is mounted in the middle of the shell, and the mounting plate comprises a first mounting surface and a second mounting surface. The heat dissipation mechanism comprises a first cover plate and a second cover plate. The first cover plate covers the first mounting surface, a first heat dissipation cavity is defined by the first cover plate, part of the first mounting surface and the shell, the first cover plate is provided with turbulent flow columns, and the multiple turbulent flow columns are arranged in an array mode. The second cover plate covers the second mounting surface, a second heat dissipation cavity is defined by the second cover plate, part of the second mounting surface and the shell, the second cover plate is provided with a plurality of flow guide channels, the flow guide channels are used for guiding fluid to flow in the second heat dissipation cavity, and the first heat dissipation cavity is communicated with the second heat dissipation cavity. By means of the structure, the flow channel design structure is optimized, and the heat exchange efficiency is improved.

Description

Technical Field

[0001] This application relates to the field of automotive motor controller technology, and in particular to a controller and a vehicle. Background Technology

[0002] With the rapid development of the electric vehicle industry, the thermal management of high-power motor controllers, as core drive components, has become a key issue restricting system performance. Existing motor controllers commonly use power semiconductor devices such as IGBTs and MOSFETs, whose junction temperatures can reach over 150°C under frequent start-stop and high-load conditions. Traditional heat dissipation solutions often employ forced air cooling structures using aluminum finned heat sinks and axial fans, but these suffer from reduced air convection efficiency and dust accumulation in high-temperature and high-humidity environments.

[0003] In the process of developing this application, the inventors discovered that currently, motor controllers still use liquid cooling structures. However, both air-cooled and liquid-cooled structures suffer from a single fluid flow channel design and low heat dissipation efficiency. Utility Model Content

[0004] This application provides a controller and a vehicle that can improve the current situation where both air-cooled and liquid-cooled structures suffer from simple fluid flow channel design and low heat dissipation efficiency.

[0005] To solve the above-mentioned technical problems, this application adopts the following technical solution: A controller is provided, comprising a housing and a heat dissipation mechanism. The housing includes a shell and a mounting plate, the mounting plate being installed in the middle of the shell, and having a first mounting surface and a second mounting surface facing away from each other. The heat dissipation mechanism includes a first cover plate and a second cover plate. The first cover plate covers the first mounting surface, and the first cover plate, a portion of the first mounting surface, and the shell together form a first heat dissipation cavity. The first cover plate is provided with baffle columns, and a plurality of baffle columns are arranged in an array. The first heat dissipation cavity is used to dissipate heat from a portion of electronic components. The second cover plate covers the second mounting surface, and the second cover plate, a portion of the second mounting surface, and the shell together form a second heat dissipation cavity. The second cover plate has a plurality of flow channels, which guide fluid flow in the second heat dissipation cavity. The first heat dissipation cavity and the second heat dissipation cavity are connected, and the second heat dissipation cavity is used to dissipate heat from another portion of electronic components.

[0006] Optionally, the outer shell is further provided with a water inlet, and the box body is further provided with a turbulence inlet and a turbulence outlet, wherein the water inlet is connected to the turbulence inlet and the turbulence outlet is connected to the turbulence outlet.

[0007] Optionally, the housing further includes a first partition plate. The first partition plate is disposed on the first mounting surface along a preset direction, and the length of the first partition plate is less than the length of the mounting plate. The first partition plate is used to partially separate the first heat dissipation cavity into a connected turbulence channel. The turbulence channel is used to turbulent the fluid in the first heat dissipation cavity. The turbulence inlet and the turbulence outlet are located at both ends of the turbulence channel.

[0008] Optionally, the turbulence column includes a first column and a second column. The first column is spaced apart along the edge of the first cover plate, and the second column is arranged in a honeycomb array on the first cover plate and located within the turbulence channel.

[0009] Optionally, the outer shell is further provided with a water outlet, and the box body is further provided with a first guide water inlet, a second guide water inlet and a guide water outlet, wherein the first guide water inlet is connected to the water inlet, the second guide water inlet is connected to the turbulence outlet, and the guide water outlet is connected to the water outlet.

[0010] Optionally, the housing further includes a second partition. Along the preset direction, the second partition is disposed on the second mounting surface, and the length of the second partition is less than the length of the mounting plate. The second partition is used to partially separate the second heat dissipation cavity to form the flow channel. The first flow inlet and the flow outlet, and the second flow inlet and the flow outlet are both located at both ends of the flow channel.

[0011] Optionally, the second cover plate is provided with a plurality of flow guide baffles, at least some of the flow guide baffles are arranged parallel to the second baffle, and the other part of the flow guide baffles are arranged in concentric arcs, the center of the concentric arcs being the end of the second baffle away from the outlet.

[0012] Optionally, at least some of the flow guide baffles are shorter than the length of another portion of the flow guide baffles, and the flow guide baffles are spaced apart.

[0013] Optionally, the first cover plate is fixed to the first mounting surface by friction welding, and the second cover plate is fixed to the second mounting surface by friction welding.

[0014] To solve the aforementioned technical problems, another technical solution adopted in this application is to provide a vehicle, the vehicle including a motor and the aforementioned controller. The motor is electrically connected to the controller, and the controller is used to control the motor.

[0015] The beneficial effects of this application embodiment are as follows: Unlike the prior art, this application embodiment provides a controller, which includes a housing and a heat dissipation mechanism. The housing includes a shell and a mounting plate, with the mounting plate installed in the middle of the shell. The mounting plate has a first mounting surface and a second mounting surface facing away from each other. The heat dissipation mechanism includes a first cover plate and a second cover plate. The first cover plate covers the first mounting surface, and the first cover plate, a portion of the first mounting surface, and the shell together form a first heat dissipation cavity. The first cover plate is provided with baffle columns, and multiple baffle columns are arranged in an array. The first heat dissipation cavity is used to dissipate heat from a portion of electronic components. The second cover plate covers the second mounting surface, and the second cover plate, a portion of the second mounting surface, and the shell together form a second heat dissipation cavity. The second cover plate has multiple flow channels, which guide fluid flow within the second heat dissipation cavity. The first heat dissipation cavity and the second heat dissipation cavity are connected, and the second heat dissipation cavity is used to dissipate heat from another portion of electronic components. Through this structure, fluid flows within the first and second heat dissipation cavities, thereby enabling heat dissipation from both sides of the first and second mounting surfaces, optimizing the flow channel design and improving heat exchange efficiency. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the embodiments of this application will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on the drawings without creative effort.

[0017] Figure 1 This is a perspective view of a controller provided in one embodiment of this application;

[0018] Figure 2 This application provides Figure 1 A-side cross-sectional view;

[0019] Figure 3 This application provides Figure 1 Sectional view of side B;

[0020] Figure 4 This is a perspective view of the first cover plate provided in one embodiment of this application;

[0021] Figure 5 This is a partial perspective view of the controller provided in one embodiment;

[0022] Figure 6 This is a schematic diagram of the fluid temperature in the turbulence channel provided in one embodiment;

[0023] Figure 7This is a schematic diagram of the fluid temperature in the flow channel provided in one embodiment;

[0024] Figure 8 This is a schematic diagram of the fluid flow velocity in the turbulence channel provided in one embodiment;

[0025] Figure 9 This is a schematic diagram of the fluid flow rate in the flow channel provided in one embodiment.

[0026] The reference numerals in the attached diagram of controller 1000 are as follows:

[0027] Box 100 Second partition 190 shell 110 Heat dissipation mechanism 200 Inlet 111 First cover plate 210 water outlet 112 spoiler column 211 Mounting plate 120 First column 2111 First mounting surface 121 Second column 2112 Second mounting surface 122 First heat dissipation cavity 220 Turbulence inlet 130 Disruption Channel 221 Turbulence outlet 140 Second cover plate 230 First partition 150 diversion channel 231 First diversion inlet 160 baffle 232 Second diversion inlet 170 Second heat dissipation cavity 240 Diversion outlet 180 Preset direction F Detailed Implementation

[0028] To facilitate understanding of this application, a more detailed description is provided below with reference to the accompanying drawings and specific embodiments. It should be noted that when an element is described as being "fixed to" another element, it can be directly on the other element, or one or more intermediate elements may exist between them. When an element is described as being "connected" to another element, it can be directly connected to the other element, or one or more intermediate elements may exist between them. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this specification are for illustrative purposes only.

[0029] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the scope of this application. The term "and / or" as used in this specification includes any and all combinations of one or more of the associated listed items.

[0030] Currently, the number of electric vehicles on the market is gradually increasing, and their electronic control technology is constantly improving, leading to a more mature control technology for electric motors. However, due to the variety of electric vehicles and their different application scenarios, their functional and power requirements vary, resulting in different demands on the internal structure and heat dissipation of the motor controller. Traditional motor controllers typically use air-cooled or liquid-cooled radiators, but the simple heat dissipation channel structure design in these controllers often fails to achieve optimal heat dissipation.

[0031] To address the aforementioned problems, this application provides a controller 1000 and a vehicle. The vehicle includes a motor and the aforementioned controller 1000, which is electrically connected to the motor to control its operation or shutdown. The controller 1000 provided in this application improves upon the problems of low heat dissipation efficiency due to the simple fluid flow channel design in current air-cooled and liquid-cooled structures. Specific implementation details are provided below.

[0032] For the aforementioned controller 1000, please refer to Figures 1 to 3 The controller 1000 includes a housing 100 and a heat dissipation mechanism 200. The housing 100 includes an outer shell 110 and a mounting plate 120. The mounting plate 120 is mounted in the middle of the outer shell 110 and has a first mounting surface 121 and a second mounting surface 122 facing away from each other. The heat dissipation mechanism 200 includes a first cover plate 210 and a second cover plate 230. The first cover plate 210 covers the first mounting surface 121. The first cover plate 210, part of the first mounting surface 121, and the outer shell 110 together form a first heat dissipation cavity 220. The first cover plate 210 is provided with baffles 211, and multiple baffles 211 are arranged in an array. The first heat dissipation cavity 220 is used to dissipate heat from some electronic components. The second cover plate 230 is disposed on the second mounting surface 122. The second cover plate 230, part of the second mounting surface 122 and the outer shell 110 together form the second heat dissipation cavity 240. The second cover plate 230 has multiple flow channels 231, which are used to guide fluid to flow in the second heat dissipation cavity 240. The first heat dissipation cavity 220 and the second heat dissipation cavity 240 are connected. The second heat dissipation cavity 240 is used to dissipate heat for another part of the electronic devices.

[0033] It should be noted that "mounting plate 120 is installed in the middle of housing 110" means that mounting plate 120 is located in the middle of one of the thickness direction, length direction or width direction of housing 110, so that mounting plate 120 can divide the internal space of housing 110 into a first heat dissipation cavity 220 and a second heat dissipation cavity 240. The space sizes of the two cavities can be equal or unequal. Preferably, mounting plate 120 is arranged parallel to the plane with the largest surface area of ​​housing 110, thereby increasing the heat exchange area and improving heat dissipation efficiency. In some embodiments, mounting plate 120 can also be an uneven plate surface to adapt to different installation requirements.

[0034] It is understandable that the turbulence-inducing columns 211 provided in the first heat dissipation cavity 220 can generate eddies or turbulence when the fluid flows through them. This turbulence helps to break down the fluid boundary layer and thermal boundary layer, making the internal temperature of the fluid more uniform during heat exchange and improving the efficiency of heat transfer. Meanwhile, the flow-guiding channel 231 provided in the second heat dissipation cavity 240 can effectively increase the flow distance of the fluid within the second heat dissipation cavity 240, thereby increasing the time spent in the heat exchange process, reducing the waste of lower-temperature fluid, and improving heat exchange efficiency.

[0035] It is understood that the fluid in this application can be a gas or a liquid, and since this application aims to solve the heat dissipation problem of the motor controller 1000, the fluid can be a cryogenic gas, water, coolant, etc.

[0036] It should be noted that "the first heat dissipation cavity 220 is used to dissipate heat from some electronic devices" means that the electronic devices can be installed on the side of the first cover plate 210 away from the first heat dissipation cavity 220, so that the first cover plate 210 is a thermal contact surface, thereby dissipating heat from the electronic devices through the fluid in the first heat dissipation cavity 220; correspondingly, "the second heat dissipation cavity 240 is used to dissipate heat from other electronic devices" means that other electronic devices can be installed on the side of the second cover plate 230 away from the second heat dissipation cavity 240, so that the second cover plate 230 is a thermal contact surface, thereby dissipating heat from the other electronic devices through the fluid in the second heat dissipation cavity 240.

[0037] The above structure allows fluid to flow within the first heat dissipation cavity 220 and the second heat dissipation cavity 240, thereby enabling heat dissipation on both sides of the first mounting surface 121 and the second mounting surface 122. Furthermore, the different structures of the first heat dissipation cavity 220 and the second heat dissipation cavity 240 allow the layout of electronic devices located on the first mounting surface 121 side and the second mounting surface 122 side to be changed according to actual heat dissipation requirements, thus optimizing the flow channel design structure and improving heat exchange efficiency.

[0038] In some embodiments, please refer to Figure 2 In conjunction with other accompanying drawings, the outer casing 110 is also provided with a water inlet 111, and the housing 100 is also provided with a turbulence inlet 130 and a turbulence outlet 140. The water inlet 111 is connected to the turbulence inlet 130, and the turbulence inlet 130 is connected to the turbulence outlet 140. It can be understood that the water inlet 111 and the turbulence inlet 130 partially overlap, that is, the water inlet 111 is opened on the surface of the outer casing 110 so that external fluid can directly enter the turbulence inlet 130 and flow in the first heat dissipation cavity 220 through the turbulence column 211, thereby dissipating heat from the electronic devices mounted on the surface of the first cover plate 210.

[0039] Further, please refer to Figure 2In conjunction with other accompanying drawings, the housing 100 also includes a first partition 150. Along a preset direction F, the first partition 150 is disposed on the first mounting surface 121, and the length of the first partition 150 is less than the length of the mounting plate 120. The first partition 150 is used to partially separate the first heat dissipation cavity 220 into a connected turbulence channel 221. The turbulence channel 221 is used to turbulent the fluid in the first heat dissipation cavity 220. The turbulence inlet 130 and the turbulence outlet 140 are located at both ends of the turbulence channel 221. It should be noted that the preset direction F in this application can be one of the thickness direction, length direction, or width direction of the outer casing 110. One end of the first partition 150 is located near the edge of the outer casing 110, and the other end extends away from the edge. Since the length of the first partition 150 in the preset direction F is less than the length of the mounting plate 120, it will not completely separate the first heat dissipation cavity 220 to form a rotary turbulence channel 221. That is, the turbulence inlet 130 and the turbulence outlet 140 are located on the same side of the outer casing 110. Thus, within the same space size, the length of the turbulence channel 221 is increased, thereby increasing the heat exchange time between the fluid and the electronic devices and improving the heat exchange efficiency. It can be understood that the fluid temperature is lower near the turbulence inlet 130, so electronic devices with higher heat generation temperatures can be placed in the area near the turbulence inlet 130.

[0040] Furthermore, please refer to Figure 3 and Figure 4 In conjunction with other accompanying drawings, the turbulence-disrupting column 211 includes: a first column 2111 and a second column 2112. The first column 2111 is spaced apart along the edge of the first cover plate 210, and the second column 2112 is arranged in a honeycomb array on the first cover plate 210 and located within the turbulence-disrupting channel 221. It should be noted that the diameter or volume of the first column 2111 is larger than that of the second column 2112, and it is arranged along the edge of the first cover plate 210. The first column 2111 can serve as a support structure for the first cover plate 210. Through the larger contact area between the first column 2111 and the first cover plate 210, the support stability between the first cover plate 210 and the first mounting surface 121 is improved. The number of second columns 2112 is multiple. "The second columns 2112 are arranged in a honeycomb array" means that the second columns 2112 are spaced apart along the preset direction F, and spaced apart perpendicular to the preset direction F. The second columns 2112 in adjacent rows or columns are staggered in the preset direction F and perpendicular to the preset direction F to form turbulence.

[0041] In some embodiments, please refer to Figure 2In conjunction with other accompanying drawings, the outer casing 110 is also provided with a water outlet 112, and the box body 100 is also provided with a first guide water inlet 160, a second guide water inlet 170 and a guide water outlet 180. The first guide water inlet 160 is connected to the water inlet 111, the second guide water inlet 170 is connected to the turbulence outlet 140, and the guide water outlet 180 is connected to the water outlet 112. That is, the fluid entering from the inlet can flow to the first heat dissipation chamber 220 and the second heat dissipation chamber 240 simultaneously, and the fluid flowing into the first heat dissipation chamber 220 can also flow back into the second heat dissipation chamber 240 through the second guide inlet 170. On the one hand, this allows the first heat dissipation chamber 220 and the second heat dissipation chamber 240 to dissipate heat simultaneously when the fluid flows in, without waiting for the fluid to enter the second heat dissipation chamber 240 from the first heat dissipation chamber 220; on the other hand, the temperature is lower when the fluid directly enters the second heat dissipation chamber 240 compared to when it enters the second heat dissipation chamber 240 from the first heat dissipation chamber 220, thereby effectively improving the heat exchange efficiency.

[0042] Further, please refer to Figure 2 , Figure 3 and Figure 5 In conjunction with other accompanying drawings, the housing 100 also includes a second partition 190. Along a preset direction F, the second partition 190 is disposed on the second mounting surface 122, and the length of the second partition 190 is less than the length of the mounting plate 120. The second partition 190 is used to partially separate the second heat dissipation cavity 240 into a flow channel 231. The first flow inlet 160 and the flow outlet 180, and the second flow inlet 170 and the flow outlet 180 are all located at both ends of the flow channel 231. It should be noted that the preset direction F in this application can be one of the thickness direction, length direction, or width direction of the outer casing 110. One end of the second partition 190 is located near the edge of the outer casing 110, and the other end extends away from the edge. Since the length of the second partition 190 in the preset direction F is less than the length of the mounting plate 120, it will not completely separate the second heat dissipation cavity 240 to form a rotary flow channel 231. That is, the first flow inlet 160 and the turbulence outlet 140 are located on the same side of the outer casing 110, and the second flow inlet 170 and the turbulence outlet 140 are located on opposite sides of the outer casing 110. Thus, within the same space size, the length of the flow channel 231 is increased, thereby increasing the heat exchange time between the fluid and the electronic device, thereby improving the heat exchange efficiency. It can be understood that the fluid temperature is lower near the first flow inlet 160 or the second flow inlet 170, and electronic devices with higher heat generation temperatures can be placed in the area near the turbulence inlet 130.

[0043] In some embodiments, please refer to Figure 5In conjunction with other accompanying drawings, the second cover plate 230 is provided with a plurality of flow guide baffles 232. At least some of the flow guide baffles 232 are arranged parallel to the second baffle 190, while the other part of the flow guide baffles 232 are arranged in concentric arcs, with the center of the concentric arcs being the end of the second baffle 190 away from the outlet 112. It is understood that the length of at least some of the flow guide baffles 232 is less than the length of the other part of the flow guide baffles 232, and the flow guide baffles 232 are spaced apart. The lengths of the flow guide baffles 232 may be equal or unequal, and the lengths of the intervals between the flow guide baffles 232 may be equal or unequal. In some embodiments, some of the flow guide baffles 232 may also be provided on the second mounting surface 122, thereby increasing the flow velocity and flow direction of the fluid in the flow guide channel 231, thereby improving the heat exchange efficiency.

[0044] In some embodiments, the first cover plate 210 is fixed to the first mounting surface 121 by friction welding, and the second cover plate 230 is fixed to the second mounting surface 122 by friction welding. Preferably, both are friction stir welding. It is understood that friction welding refers to the process where mechanical friction generates heat, which is concentrated at the contact surface and the temperature is below the material's melting point (solid-state welding), avoiding grain coarsening or oxidation caused by molten metal. Friction welding can reduce damage to the thermal conductivity of the base material, ensuring efficient heat transfer of the heat dissipation structure; reduce defects such as hot cracks and porosity; improve weld reliability and lifespan; provide excellent airtightness and reduce fluid leakage; friction welding has a high degree of automation, short welding time per piece, and is suitable for large-scale manufacturing.

[0045] In summary, please refer to the following: Figures 6 to 9 In conjunction with other accompanying drawings, this application presents a design experiment based on the aforementioned controller 1000, with the following design: multiple temperature sampling points and flow velocity sampling points are arranged in the turbulence channel 221 and the flow guiding channel 231, using water as the fluid, with a preset temperature of 65℃.

[0046] Combined with appendix Figures 6 to 9 It can be seen that within the turbulence channel 221, the temperature difference between the turbulence inlet 130 and the turbulence outlet 140 is approximately 5°C, while the temperature within the guide channel 231 remains relatively constant, between 67°C and 69°C. That is, the controller 1000 provided in this application can maintain the fluid temperature, reducing the risk of fluid overheating and thus improving heat dissipation efficiency, thereby addressing the current situation of low heat dissipation efficiency in heat dissipation structures. Referring to the attached diagram, it can be visually observed that the fluid flow velocity is relatively uniform within the turbulence channel 221 and the guide channel 231, and there are few dead points in the fluid flow. Combined with the aforementioned temperature diagram, it can also be seen that the controller 1000 provided in this application can maintain the fluid temperature, reducing the risk of fluid overheating and thus improving heat dissipation efficiency, thereby addressing the current situation of low heat dissipation efficiency in heat dissipation structures.

[0047] This application aims to provide a controller 1000, which includes a housing 100 and a heat dissipation mechanism 200. The housing 100 includes a shell 110 and a mounting plate 120. The mounting plate 120 is mounted in the middle of the shell 110 and has a first mounting surface 121 and a second mounting surface 122 facing away from each other. The heat dissipation mechanism 200 includes a first cover plate 210 and a second cover plate 230. The first cover plate 210 covers the first mounting surface 121. The first cover plate 210, part of the first mounting surface 121, and the shell 110 together form a first heat dissipation cavity 220. The first cover plate 210 is provided with baffles 211, and multiple baffles 211 are arranged in an array. The first heat dissipation cavity 220 is used to dissipate heat from some electronic components. A second cover plate 230 is disposed on the second mounting surface 122. The second cover plate 230, part of the second mounting surface 122, and the outer shell 110 together form a second heat dissipation cavity 240. The second cover plate 230 has multiple flow channels 231, which are used to guide fluid to flow in the second heat dissipation cavity 240. The first heat dissipation cavity 220 and the second heat dissipation cavity 240 are connected, and the second heat dissipation cavity 240 is used to dissipate heat from another part of the electronic components. Through the above structure, fluid flows in the first heat dissipation cavity 220 and the second heat dissipation cavity 240, thereby enabling heat dissipation on one side of the first mounting surface 121 and one side of the second mounting surface 122, optimizing the flow channel design structure and improving heat exchange efficiency.

[0048] Based on the same inventive concept, this application also provides a vehicle, which includes a motor and a controller 1000. The motor and the controller 1000 are electrically connected, and the controller 1000 is used to control the motor. The controller 1000 has the same structure and function as the controller 1000 described above, and will not be described in detail here. Therefore, the vehicle can also improve the current situation where both air-cooled and liquid-cooled structures suffer from a single fluid flow channel design and low heat dissipation efficiency.

[0049] It should be noted that while preferred embodiments of this application are provided in the specification and accompanying drawings, this application can be implemented in many different forms and is not limited to the embodiments described herein. These embodiments are not intended to impose additional limitations on the content of this application; their purpose is to provide a more thorough and comprehensive understanding of the disclosure of this application. Furthermore, the above-described technical features can be combined with each other to form various embodiments not listed above, all of which are considered to be within the scope of this application's specification. Moreover, those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.

Claims

1. A controller characterized by comprising: The application relates to a box body, which comprises a shell and a mounting plate, the mounting plate is arranged in the middle of the shell, the mounting plate has a first mounting surface and a second mounting surface which are opposite to each other, a heat dissipation mechanism is arranged on the box body, the heat dissipation mechanism comprises a first cover plate which is arranged on the first mounting surface, the first cover plate, part of the first mounting surface and the shell jointly form a first heat dissipation cavity, the first cover plate is provided with a plurality of turbulence columns which are arranged in an array, the first heat dissipation cavity is used for dissipating heat of part of electronic devices, a second cover plate is arranged on the second mounting surface, the second cover plate, part of the second mounting surface and the shell jointly form a second heat dissipation cavity, the second cover plate is provided with a plurality of flow guide channels which are used for guiding fluid to flow in the second heat dissipation cavity, the first heat dissipation cavity and the second heat dissipation cavity are communicated, and the second heat dissipation cavity is used for dissipating heat of another part of electronic devices. The shell is further provided with a water inlet, the box body is further provided with a turbulence water inlet and a turbulence water outlet, the water inlet is communicated with the turbulence water inlet, and the turbulence water inlet is communicated with the turbulence water outlet. The box body further comprises a first partition plate which is arranged on the first mounting surface along a preset direction, the length of the first partition plate is smaller than the length of the mounting plate, the first partition plate is used for partially separating the first heat dissipation cavity into turbulence channels which are communicated with each other, the turbulence channels are used for disturbing the flow of fluid in the first heat dissipation cavity, and the turbulence water inlet and the turbulence water outlet are located at two ends of the turbulence channels. The turbulence column comprises a first column body and a second column body, the first column body is arranged at intervals along the edge of the first cover plate, and the second column body is arranged in a honeycomb array on the first cover plate and located in the turbulence channels.

2. The controller of claim 1, wherein, The shell is further provided with a water outlet, the box body is further provided with a first flow guide water inlet, a second flow guide water inlet and a flow guide water outlet, the first flow guide water inlet is communicated with the water inlet, the second flow guide water inlet is communicated with the turbulence water outlet, and the flow guide water outlet is communicated with the water outlet.

3. The controller of claim 2, wherein, The box body further comprises a second partition plate which is arranged on the second mounting surface along the preset direction, the length of the second partition plate is smaller than the length of the mounting plate, the second partition plate is used for partially separating the second heat dissipation cavity into the flow guide channels, and the first flow guide water inlet and the flow guide water outlet and the second flow guide water inlet and the flow guide water outlet are located at two ends of the flow guide channels.

4. The controller of claim 3, wherein, The second cover plate is provided with a plurality of flow guide partition plates, at least part of the flow guide partition plates are arranged in parallel with the second partition plate, another part of the flow guide partition plates are arranged in concentric circular arcs, the center of the concentric circular arcs is the end of the second partition plate which is far away from the water outlet.

5. The controller of claim 3, wherein, The length of at least part of the flow guide partition plates is smaller than the length of another part of the flow guide partition plates, and the flow guide partition plates are arranged at intervals.

6. The controller of claim 5, wherein, The first cover plate is fixed on the first mounting surface by using a friction welding process, and the second cover plate is fixed on the second mounting surface by using a friction welding process.

7. The controller of claim 6, wherein, ​ 8. The controller of claim 7, wherein, ​ 9. The controller of any one of claims 1-8, wherein, ​ 10. A vehicle characterized by comprising: A motor, and a controller as claimed in any one of claims 1 to 9, the motor being electrically connected to the controller, the controller being configured to control the motor.

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