Controller shell and vehicle controller
By using a split design and a water channel module made of high thermal conductivity material, the heat dissipation problem of the motor controller is solved, achieving efficient heat dissipation and a low-cost controller housing design, which is suitable for motor controllers in electric vehicles.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-03
- Publication Date
- 2026-03-27
Smart Images
Figure CN121751579A_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of automotive technology, and in particular to a controller housing and a vehicle controller. Background Technology
[0002] With rapid economic development and increasing environmental awareness, electric vehicles are becoming increasingly popular. The core power system of an electric vehicle is called the three-electric system, which includes the electric drive (i.e., the drive motor and battery) and the motor controller used to control the electric drive and other electrical devices.
[0003] The motor controller integrates power devices that generate significant heat, requiring robust heat dissipation. Currently, the power devices are mounted on the water channel surface of the casing for heat dissipation, making further improvements in heat dissipation capacity difficult. Summary of the Invention
[0004] The main technical problem addressed by this application is to provide a controller housing and a vehicle controller that can improve the controller's heat dissipation capacity.
[0005] To solve the above-mentioned technical problems, one technical solution adopted in this application is: to provide a controller housing, including a housing body and a water channel module, wherein the housing body includes a power mounting part, the power mounting part having a power mounting cavity; the water channel module is housed in the power mounting cavity and fixedly connected to the power mounting part, the water channel module having a first cooling water channel, wherein the thermal conductivity of the water channel module is greater than the thermal conductivity of the housing body.
[0006] The housing body includes a bottom wall with an opening communicating with the power supply mounting cavity. The water channel module passes through the mounting opening and is fixedly connected to the bottom wall. The housing body includes the bottom wall and side walls surrounding the bottom wall to form a cavity within the housing body. The mounting opening is a through hole penetrating the bottom wall corresponding to the power supply mounting section. The bottom end of the water channel module is fixedly connected to the edge of the through hole, specifically through friction welding. The water channel module seals the mounting opening while extending into the power supply mounting cavity to cool the power components within.
[0007] The water channel module is equipped with a cooling groove, the opening of which is located on the side of the water channel module away from the power supply mounting cavity. The controller housing also includes a water channel cover, which is located on the side of the water channel module away from the power supply mounting cavity and covers the cooling groove. The water channel cover and the cooling groove together form the first cooling water channel, and the water channel cover has a first inlet connecting to the first cooling water channel. The opening of the cooling groove faces the outside of the bottom wall, and the depth direction of the cooling groove is the thickness direction of the water channel module and the controller housing. The cooling groove is a blind groove closed at both ends in its extension direction. The above-mentioned cooling groove structure is convenient to be processed on the water channel module, and cooling grooves of different shapes can be processed according to requirements. The water channel cover is located on the outside of the bottom wall and covers the opening of the cooling groove, forming a first cooling water channel closed within the controller housing. The side of the water channel cover facing the bottom wall is fixedly connected to the bottom wall outside the mounting opening, specifically through friction welding. A water inlet pipe is provided on the side of the water channel cover away from the water channel module. The water inlet pipe passes through the water channel cover to form a first water inlet. The first water inlet is located at the end of the first cooling water channel, so that the cooling medium can flow along the entire extension length of the first cooling water channel after entering the first cooling water channel from the first water inlet, ensuring that the first cooling water channel has sufficient heat dissipation area, so that the power components of the power supply have sufficient heat dissipation effect.
[0008] The first cooling channel extends in a U-shape. This U-shaped first cooling channel increases its heat dissipation area and improves its heat dissipation effect. Furthermore, this structure is easy to fabricate.
[0009] The water channel module includes a base plate and a water channel plate. The base plate is connected to the bottom wall, and the water channel plate is connected to the side of the base plate facing the power mounting cavity. The water channel plate extends in a U-shape, and the first cooling water channel is disposed within the water channel plate. The shape and size of the base plate are completely consistent with the shape and size of the mounting opening, meaning the base plate can completely fill the mounting opening. The extension path of the water channel plate is U-shaped, and the extension path of the first cooling water channel is consistent with the extension path of the water channel plate. The orthographic projection of the water channel plate onto the plane of the base plate is located within the base plate, meaning the base plate extends beyond the water channel plate, and the edge of the base plate protrudes beyond the side of the water channel plate to form a flange. A stepped surface that is concave relative to the bottom wall is formed around the periphery of the mounting opening. This concave stepped surface is flush with the bottom surface of the base plate, and the joint between the stepped surface and the base plate is the friction welding point between the water channel module and the housing body. Simultaneously, the stepped surface is attached and fixedly connected to the water channel cover, facilitating the positioning of the water channel cover and the bottom wall, allowing the water channel cover to be flush with the bottom wall. The joint between the water channel cover and the bottom wall is the friction welding point between the water channel cover and the shell body. The above structure enables double friction welding of three structures, with a simple manufacturing process and high processing precision. The U-shaped water channel plate is small in volume, occupies less space, and is lightweight, while ensuring that the first cooling water channel can extend along the U-shaped curve. The two ends of the water channel horizontal plate are connected between the two water channel vertical plates, and both are connected to the ends of the water channel vertical plates. Power components can be attached to the two water channel vertical plates respectively, ensuring the heat dissipation area of the water channel plate and the power components.
[0010] The power supply mounting section further includes a positioning component, which is disposed in the power supply mounting cavity and fits against the outer wall of the water channel module. When the water channel module passes through the mounting opening into the power supply mounting cavity, and when the water channel module fits against the positioning component during movement, it indicates that the water channel module has moved into place, at which point the water channel module can be fixed to the housing body.
[0011] The positioning component includes a positioning plate and a connecting plate. The two ends of the connecting plate are respectively connected to the positioning plate and the bottom wall. The positioning plate is abutted against the outer wall of the waterway module. The positioning plate is parallel to the bottom wall and is used to abut against the outer wall of the waterway module. The connecting plate is perpendicular to the positioning plate and the bottom wall, used to connect the positioning plate, and can also abut against the outer wall of the waterway module. In this embodiment, there are three positioning plates: two vertical positioning plates and one horizontal positioning plate. The two vertical positioning plates correspond to the two vertical waterway plates, and the two ends of the horizontal positioning plate are connected to the two ends of the two vertical positioning plates. The horizontal positioning plate is set to correspond to the horizontal waterway plate.
[0012] The housing body further includes a control unit mounting section connected to one side of the power supply mounting section. The control unit mounting section has a second cooling water channel, which communicates with the first cooling water channel. The controller housing is a two-in-one integrated housing combining a microcontroller unit and a power supply, meeting the increasingly high integration requirements of motor controllers and offering advantages such as small size and high power density. Multiple cooling water channels within the controller housing are interconnected to form a complete cooling water channel.
[0013] The waterway module is made of at least one of extruded aluminum and copper; the shell body is made of die-cast aluminum.
[0014] Another technical solution adopted in this application is: providing a vehicle controller, including the controller housing and power component described in any of the above technical solutions; the power component is located in the power supply mounting cavity, and the power component is fitted to the water channel module.
[0015] The beneficial effects of this application are as follows: Unlike existing technologies, this application divides the controller housing into two parts. One part is the housing body, which serves as the main body of the controller housing and can be integrally die-cast to form a controller housing with complex shapes. The other part is the water channel module, which serves as the remaining part of the controller housing and has a better thermal conductivity than the housing body, i.e., better heat dissipation performance. The water channel module is used to attach to the power components. The first cooling water channel in the water channel module is the corresponding cooling water channel for the power components. Due to the higher thermal conductivity of the water channel module, when a cooling medium is introduced into the first cooling water channel, the temperature of the water channel module can be rapidly reduced, and heat from the power components can be carried away, thus achieving heat dissipation. In addition, because the controller housing of this application is divided into two parts, the main body can use lower-cost materials, thereby improving the heat dissipation performance of the controller housing at a lower cost. Attached Figure Description
[0016] Figure 1 This is an exploded view of an embodiment of the controller housing of this application;
[0017] Figure 2 This is a perspective view of one embodiment of the controller housing of this application from one angle;
[0018] Figure 3 This is a perspective view of another embodiment of the controller housing of this application from another angle;
[0019] Figure 4 This is an exploded view of an embodiment of the vehicle controller of this application.
[0020] Reference numerals: 100, Vehicle controller; 10, Controller housing; 11, Housing body; 110, Power supply mounting section; 11a, Power supply mounting cavity; 11b, Control unit mounting cavity; 111, Bottom wall; 111a, Mounting opening; 111b, Stepped surface; 112, Side wall; 113, Partition; 114, Connecting cooling channel; 120, Control unit mounting section; 12, Water channel module; 121, Cooling channel; 122, Base plate; 123, Water channel plate; 1231. Vertical water channel plate; 1232. Horizontal water channel plate; 13. Water channel cover plate; 131. Inlet pipe; 132. Extension plate; 14. Positioning assembly; 141. Positioning plate; 1411. Vertical positioning plate; 1412. Horizontal positioning plate; 142. Connecting plate; 15. Mounting boss; 151. Mounting groove; 152. Second water inlet; 153. Water outlet; 154. Sealing groove; 20. Power assembly; 30. IGBT; 31. Sealing ring; 32. Fixing bolt. Detailed Implementation
[0021] To make the objectives, technical solutions, and effects of this application clearer and more explicit, the following detailed description is provided with reference to the accompanying drawings and embodiments. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.
[0022] For ease of understanding, the attached diagram shows the mutually orthogonal X-axis, Y-axis, and Z-axis. The direction along the X-axis is called the X-direction, which is the length direction of the controller housing; the direction along the Y-axis is called the Y-direction, which is the width direction of the controller housing; and the direction along the Z-axis is called the Z-direction, which is the thickness direction of the controller housing.
[0023] See Figures 1 to 3 , Figure 1 This is an exploded view of one embodiment of the controller housing of this application. Figure 2 This is a perspective view of one embodiment of the controller housing of this application from one angle; Figure 3 This is a perspective view of another embodiment of the controller housing of this application.
[0024] The inventors discovered through research that the controller housing of the related technology integrates cooling channels for cooling the power components. However, due to the large heat generated by the power devices, the heat dissipation effect of the existing controller housing on the power devices is difficult to further improve.
[0025] In view of this, this application provides a controller housing 10, which includes a housing body 11 and a water channel module 12. The housing body 11 includes a power mounting portion 110, which has a power mounting cavity 11a for mounting a power component 20. The water channel module 12 is housed in the power mounting cavity 11a and fixedly connected to the power mounting portion 110. The water channel module 12 has a first cooling water channel (not shown), wherein the thermal conductivity of the water channel module 12 is greater than that of the housing body 11. The water channel module 12 is used to mount the power component 20, and the first cooling water channel is disposed on the water channel module 12 for dissipating heat from the power component 20.
[0026] Specifically, the housing body 11 and the water channel module 12 are separately configured. The housing body 11 can be made of die-cast aluminum, such as ADC12 aluminum alloy, which has good casting properties and a thermal conductivity of 96 W / (m·K). The water channel module 12 is made of a different material than the housing body 11 and should be made of a material with a higher thermal conductivity, such as extruded aluminum or copper. Specifically, the water channel module 12 can be made of 6061 aluminum alloy, which has good thermal conductivity, with a thermal conductivity of 160 W / (m·K).
[0027] This application divides the controller housing 10 into two parts. One part is the housing body 11, which serves as the main body of the controller housing 10 and can be integrally die-cast to form a complex-shaped controller housing 10. The other part is the water channel module 12, which serves as the remaining part of the controller housing 10 and has a better thermal conductivity than the housing body 11, i.e., better heat dissipation performance. The water channel module 12 is used to fit with the power component 20. The first cooling water channel in the water channel module 12 is the corresponding cooling water channel of the power component 20. Because the water channel module 12 has a higher thermal conductivity, when a cooling medium is introduced into the first cooling water channel, the temperature of the water channel module 12 can be rapidly reduced, and the heat on the power component 20 can be carried away, thus dissipating heat. In addition, because the controller housing 10 of this application is set in two parts, the main body can use lower-cost materials, which can improve the heat dissipation performance of the controller housing 10 at a lower cost.
[0028] Optionally, in some embodiments, the housing body 11 includes a bottom wall 111, on which a mounting opening 111a communicating with the power mounting cavity 11a is formed. The water channel module 12 passes through the mounting opening 111a and is fixedly connected to the bottom wall 111. Specifically, the housing body 11 includes a bottom wall 111 and side walls 112 surrounding the periphery of the bottom wall 111 to form a cavity within the housing body 11. The mounting opening 111a is a through hole penetrating the bottom wall 111 corresponding to the power mounting part 110. The bottom end of the water channel module 12 is fixedly connected to the edge of the through hole. Specifically, the connection between the water channel module 12 and the bottom wall 111 can be achieved by friction welding. While closing the mounting opening 111a, the water channel module 12 can extend into the power mounting cavity 11a to cool the power component 20 in the power mounting cavity 11a.
[0029] Optionally, in some embodiments, the water channel module 12 is provided with a cooling groove 121, the opening of which is located on the side of the water channel module 12 away from the power mounting cavity 11a. Specifically, the opening of the cooling groove 121 faces the outer side of the bottom wall 111, and the depth direction of the cooling groove 121 is the Z direction shown in the figure, that is, the thickness direction of the water channel module 12 and the controller housing 10. The cooling groove 121 extends in a plane perpendicular to the Z direction. In this embodiment, the cooling groove 121 is a blind groove closed at both ends in its extension direction. The above-mentioned cooling groove 121 structure is convenient to be formed on the water channel module 12, and cooling grooves 121 of different shapes can be formed according to requirements.
[0030] The controller housing 10 also includes a water channel cover 13. The water channel cover 13 is located on the side of the water channel module 12 away from the power mounting cavity 11a and covers the cooling tank 121. The water channel cover 13 and the cooling tank 121 together form a first cooling water channel. The water channel cover 13 is provided with a first water inlet (not shown) that connects to the first cooling water channel. Specifically, the water channel cover 13 is located on the outside of the bottom wall 111 and covers the opening of the cooling tank 121, forming a first cooling water channel enclosed within the controller housing 10. The side of the water channel cover 13 facing the bottom wall 111 is fixedly connected to the bottom wall 111 outside the mounting opening 111a. Specifically, the connection between the water channel cover 13 and the bottom wall 111 can be achieved by friction welding. A water inlet pipe 131 is provided on the side of the water channel cover plate 13 away from the water channel module 12. The water inlet pipe 131 passes through the water channel cover plate 13 to form a first water inlet. The first water inlet is located at the end of the first cooling water channel, so that the cooling medium can flow along the entire extension length of the first cooling water channel after entering the first cooling water channel from the first water inlet, ensuring that the first cooling water channel has sufficient heat dissipation area, so that the power component 20 of the power supply has sufficient heat dissipation effect.
[0031] In other embodiments, the opening may not be made on the bottom wall 111 of the housing body 11, and the first water inlet of the water channel module 12 may be set at other positions on the housing body 11. The water channel cover 13 may also be connected to other positions on the water channel module 12.
[0032] Optionally, in some embodiments, the extension path of the first cooling channel is U-shaped. A U-shaped first cooling channel can increase its heat dissipation area and improve its heat dissipation effect; additionally, this structure is easy to fabricate. In other embodiments, the extension path of the first cooling channel can also be other shapes, such as S-shaped, serpentine, or spiral. The heat dissipation area of the first cooling channel in these shapes is larger, ensuring sufficient heat dissipation. This application does not specifically limit the extension path of the first cooling channel.
[0033] Optionally, in one embodiment, the water channel module 12 includes a base plate 122 and a water channel plate 123. The base plate 122 is connected to the bottom wall 111, and the water channel plate 123 is connected to the side of the base plate 122 facing the power mounting cavity 11a. The water channel plate 123 extends in a U-shape, and a first cooling water channel is disposed in the water channel plate 123. The base plate 122 is substantially rectangular, and its shape and size are completely consistent with the shape and size of the mounting opening 111a, that is, the base plate 122 can completely fill the mounting opening 111a. The extension path of the water channel plate 123 is U-shaped, and the extension path of the first cooling water channel is consistent with the extension path of the water channel plate 123. The orthographic projection of the water channel plate 123 on the plane of the base plate 122 is located within the base plate 122, that is, the base plate 122 extends beyond the water channel plate 123, and the edge of the base plate 122 protrudes beyond the side of the water channel plate 123 to form a flange. (See reference...) Figure 2 A stepped surface 111b, which is concave relative to the bottom wall 111, is formed around the periphery of the mounting opening 111a. This concave stepped surface 111b is flush with the bottom surface of the bottom plate 122. The joint between the stepped surface 111b and the bottom plate 122 (i.e., the joint between the periphery of the mounting opening 111a and the periphery of the bottom plate 122, as shown by arrow A) is the friction welding position between the water channel module 12 and the shell body 11. Simultaneously, the stepped surface 111b is attached and fixedly connected to the water channel cover 13. This structure facilitates the positioning of the water channel cover 13 and the bottom wall 111, allowing the water channel cover 13 to be flush with the bottom wall 111. The joint between the water channel cover 13 and the bottom wall 111 (as shown by arrow B) is the friction welding position between the water channel cover 13 and the shell body 11. This structure enables double friction welding of three structures, with a simple manufacturing process and high processing precision. The U-shaped water channel plate 123 is small in size, occupies less space, and is lighter in weight, while ensuring that the first cooling water channel can extend along the U-shaped curve. (See also...) Figure 3 and Figure 4 , Figure 4This is an exploded view of an embodiment of the vehicle controller of this application. In this embodiment, the U-shaped water channel plate 123 includes two parallel vertical water channel plates 1231 and one horizontal water channel plate 1232. The vertical water channel plates 1231 extend along the Y direction, and the horizontal water channel plate 1232 extends along the X direction. The thickness of the vertical water channel plates 1231 and the horizontal water channel plate 1232 is the same in the Z direction. The two ends of the horizontal water channel plate 1232 are connected between the two vertical water channel plates 1231, and are both connected to the ends of the vertical water channel plates 1231. Power components 20 can be attached to the two vertical water channel plates 1231 respectively to ensure the heat dissipation area of the water channel plate 123 and the power components 20.
[0034] In other embodiments, the shape of the water channel plate 123 can also be extended according to the shape of the first cooling water channel, for example, it can be an S-shaped, serpentine, spiral, or other shapes.
[0035] Optionally, please continue reading Figure 3 and Figure 4 In some embodiments, the power supply mounting portion 110 further includes a positioning component 14, which is disposed in the power supply mounting cavity 11a and abuts against the outer wall of the water channel module 12. The positioning component 14 is used to position the water channel module 12 during installation. Specifically, when the water channel module 12 passes through the mounting opening 111a into the power supply mounting cavity 11a, and when the water channel module 12 abuts against the positioning component 14 during movement, it indicates that the water channel module 12 has moved into position, at which point the water channel module 12 can be fixed to the housing body 11. In one embodiment, when the water channel module 12 abuts against the positioning component 14, the bottom surface of the bottom plate 122 of the water channel module 12 is flush with the step surface 111b, which helps to accurately position the friction welding.
[0036] Optionally, in one embodiment, the positioning component 14 includes a positioning plate 141 and a connecting plate 142. The two ends of the connecting plate 142 are respectively attached to the positioning plate 141 and the bottom wall 111. The positioning plate 141 is fitted against the outer wall of the waterway module 12. Specifically, the positioning plate 141 is arranged parallel to the bottom wall 111 for fitting against the outer wall of the waterway module 12. The connecting plate 142 is perpendicular to the positioning plate 141 and the bottom wall 111, for connecting the positioning plate 141, and also for fitting against the outer wall of the waterway module 12. In this embodiment, there are three positioning plates 141, including two vertical positioning plates 1411 and one horizontal positioning plate 1412. The two vertical positioning plates 1411 extend along the Y direction and correspond to two waterway vertical plates 1231 respectively. The vertical positioning plates 1411 and waterway vertical plates 1231 are attached in the Z direction. The two ends of the horizontal positioning plate 1412 are connected to the two ends of the two vertical positioning plates 1411 respectively. The horizontal positioning plate 1412 extends along the X direction and is positioned corresponding to the waterway horizontal plate 1232. The horizontal positioning plate 1412 and waterway horizontal plate 1232 are attached in both the Z and Y directions. There are multiple connecting plates 142, which are connected to the ends of the vertical positioning plates 1411 respectively. The connecting plates 142 fix the positioning plates 141 and are attached to the waterway plates 123 in both the X and Y directions.
[0037] In other embodiments, more or fewer positioning plates 141 or more or fewer connecting plates 142 may be provided. The shape of the positioning plates 141 or connecting plates 142 may also be other, as long as the positioning plates 141 and connecting plates 142 are in contact with the outer wall of the waterway module 12 in the X, Y and Z directions.
[0038] Optionally, please continue reading Figure 4 In some embodiments, the housing body 11 further includes a control unit mounting portion 120, which is connected to one side of the power supply mounting portion 110. Specifically, the control unit mounting portion 120 and the power supply mounting portion 110 are arranged side by side in the X direction. A partition 113 is provided inside the housing body 11, dividing the internal cavity of the housing body 11 into a control unit mounting cavity 11b and a power supply mounting cavity 11a. The control unit mounting cavity 11b is used to mount the automotive microcontroller unit (MCU), which may specifically include an insulated gate bipolar transistor (IGBT) 30, etc. The controller housing 10 of this application is a two-in-one integrated housing that integrates a microcontroller unit and a power supply component 20, meeting the increasingly high integration requirements of vehicle motor controllers and having the advantages of small size and high power density.
[0039] The control unit mounting section 120 is provided with a second cooling water channel (not shown), which communicates with the first cooling water channel. Specifically, the control unit mounting section 120 includes a mounting boss 15, which protrudes from the bottom wall 111 and extends into the control unit mounting cavity 11b. The mounting boss 15 is provided with a mounting groove 151, and the bottom of the mounting groove 151 is provided with a second water inlet 152 and a water outlet 153. The second water inlet 152 and the water outlet 153 are respectively located on both sides of the mounting groove 151, wherein the second water inlet 152 is located on the side closer to the power supply mounting section 110, and the water outlet 153 is located on the side away from the power supply mounting section 110. A sealing groove 154 is provided on the outer periphery of the mounting groove 151, and a sealing ring 31 is installed in the sealing groove 154. The IGBT 30 is mounted on the mounting boss 15, covering the sealing groove 154 and surrounding it. The side of the IGBT 30 facing the mounting boss 15 extends into the sealing groove 154, and the IGBT 30 is secured to the mounting boss 15 by fixing bolts 32. The IGBT 30 and the sealing groove 154 together form a closed second cooling channel, with a second inlet 152 and an outlet 153 communicating with it. The cooling medium enters the second cooling channel through the second inlet 152 and flows out through the outlet 153, achieving direct cooling of the IGBT 30.
[0040] Optionally, the bottom of the controller housing 10 is further provided with a connecting cooling water channel, the two ends of which are respectively connected to the first cooling water channel and the second cooling water channel. Specifically, the bottom wall 111 of the housing body 11 is provided with a connecting cooling groove 114, one end of which is connected to one end of the first cooling water channel, and the other end of which is connected to the mounting groove 151, forming a second inlet 152 on the mounting groove 151. The water channel cover plate 13 includes an extension plate 132, which covers the connecting cooling groove 114, and the extension plate 132 and the connecting cooling groove 114 together form a connecting cooling water channel. In this embodiment, multiple cooling water channels in the controller housing 10 are interconnected to form a complete cooling water channel. The cooling medium can enter the first cooling water channel from the first inlet, cool and dissipate heat from the power component 20, and then enter the second cooling water channel from the second inlet 152 through the connecting cooling water channel to cool and dissipate heat from the IGBT 30, and then leave the controller housing 10 from the outlet 153.
[0041] This application also provides a vehicle controller 100, including a controller housing 10 and a power component 20 according to any of the above technical solutions. The power component 20 is located in the power mounting cavity 11a and is fitted to the water channel module 12. Specifically, there are two sets of power components 20, and the two sets of power components 20 are respectively fitted to the outer walls of the two water channel vertical plates 1231.
[0042] Optionally, the vehicle controller 100 also includes an IGBT 30. A sealing groove 154 is provided on the outer periphery of the mounting groove 151, and a sealing ring 31 is provided in the sealing groove 154. The IGBT 30 is mounted on the mounting boss 15, and the IGBT 30 covers the sealing groove 154 and the surrounding sealing groove 154. The sealing ring 31 seals the IGBT 30 with the mounting groove 151. The side of the IGBT 30 facing the mounting boss 15 extends into the sealing groove 154, and the IGBT 30 is locked to the mounting boss 15 by a fixing bolt 32.
[0043] The vehicle controller provided in this application can be applied to pure gasoline vehicles, hybrid electric vehicles, or pure electric vehicles, and is also applicable to any other vehicle type, such as SUVs, off-road vehicles, MPVs, etc.
[0044] The controller housing 10 of the vehicle controller provided in this application is divided into two parts. One part is the housing body 11, which serves as the main body of the controller housing 10 and can be integrally die-cast to form a complex-shaped controller housing 10. The other part is the water channel module 12, which serves as the remaining part of the controller housing 10 and has a better thermal conductivity than the housing body 11, i.e., better heat dissipation performance. The water channel module 12 is used to fit with the power component 20. The first cooling water channel in the water channel module 12 corresponds to the cooling water channel of the power component 20. Because the water channel module 12 has a higher thermal conductivity, when a cooling medium is introduced into the first cooling water channel, the temperature of the water channel module 12 can be rapidly reduced, and the heat on the power component 20 can be carried away, thus dissipating heat. In addition, because the controller housing 10 of this application is set in two parts, the main body can use lower-cost materials, which can improve the heat dissipation performance of the controller housing 10 at a lower cost.
[0045] The above are merely embodiments of this application and do not limit the scope of this patent application. Any equivalent structural or procedural changes made using the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the scope of patent protection of this application.
Claims
1. A controller housing, characterized in that, include: The housing body includes a power supply mounting part, wherein the power supply mounting part has a power supply mounting cavity; A water channel module is housed in the power supply mounting cavity and fixedly connected to the power supply mounting part. The water channel module is provided with a first cooling water channel, wherein the thermal conductivity of the water channel module is greater than that of the housing body.
2. The controller housing according to claim 1, characterized in that, The housing body includes a bottom wall, on which an installation opening communicating with the power supply mounting cavity is provided. The water channel module passes through the installation opening and is fixedly connected to the bottom wall.
3. The controller housing according to claim 2, characterized in that, The water channel module is provided with a cooling groove, and the opening of the cooling groove is located on the side of the water channel module away from the power supply mounting cavity; The controller housing also includes a water channel cover plate, which is disposed on the side of the water channel module away from the power supply mounting cavity and covers the cooling tank. The water channel cover plate and the cooling tank together form the first cooling water channel, and the water channel cover plate is provided with a first water inlet that connects to the first cooling water channel.
4. The controller housing according to claim 2, characterized in that, The extension path of the first cooling water channel is U-shaped.
5. The controller housing according to claim 4, characterized in that, The water channel module includes a base plate and a water channel plate. The base plate is connected to the bottom wall, and the water channel plate is connected to the side of the base plate facing the power mounting cavity. The water channel plate extends in a U-shape, and the first cooling water channel is disposed in the water channel plate.
6. The controller housing according to claim 1, characterized in that, The power supply mounting part further includes a positioning component, which is disposed in the power supply mounting cavity and is attached to the outer wall of the water channel module.
7. The controller housing according to claim 6, characterized in that, The positioning component includes a positioning plate and a connecting plate. The two ends of the connecting plate are respectively attached to the positioning plate and the bottom wall, and the positioning plate is attached to the outer wall of the waterway module.
8. The controller housing according to claim 1, characterized in that, The housing body also includes a control unit mounting part, which is connected to one side of the power supply mounting part. The control unit mounting part is provided with a second cooling water channel, which is connected to the first cooling water channel.
9. The controller housing according to claim 1, characterized in that, The waterway module is made of at least one of extruded aluminum and copper; the shell body is made of die-cast aluminum.
10. A vehicle controller, characterized in that, include: Controller housing as described in any one of claims 1-9; The power component is located in the power supply mounting cavity and is fitted to the water channel module.