A controller housing assembly
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- CHINA FAW CO LTD
- Filing Date
- 2022-09-26
- Publication Date
- 2026-06-30
Smart Images
Figure CN115379743B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to automotive controller housings, and more particularly to a controller housing assembly. Background Technology
[0002] As the level of automotive intelligence continues to improve, the functions integrated by various domain controllers in automobiles are increasing, and their power is also increasing. The rapidly increasing heat generation seriously affects the normal operation of the controller, which can easily lead to controller shutdown or even irreversible damage.
[0003] Current liquid cooling solutions for automotive controllers suffer from problems such as unreasonable water channel design, low heat dissipation efficiency, complex structure, and high manufacturing costs. Some structural designs are particularly complex and costly. Therefore, improving the heat dissipation of controllers is an important issue in the current development of automotive intelligence.
[0004] Chinese patent document CN202020550479.7 discloses a water-cooled heat dissipation fin structure for a motor controller, including a motor controller housing. The motor controller housing has uniformly and continuously arranged first U-shaped grooves formed on its surface. Plates formed on both sides of each first U-shaped groove are first fins. The motor controller housing also has uniformly and continuously arranged second U-shaped grooves formed on its surface. Plates formed on both sides of each second U-shaped groove are second fins. Each second fin is inserted into a corresponding first U-shaped groove, and the first and second U-shaped grooves form a connected S-shaped water-cooled heat dissipation channel. The two ends of the motor controller housing are respectively formed with… The system has inlet and outlet ports connected to the S-shaped water-cooling heat dissipation channel. However, this design has the following drawbacks: 1. Although there are two water channels, the water essentially enters from one side and exits from the other, meaning the cooling liquid cannot reach the hottest area first, thus failing to achieve optimal cooling. 2. The inlet and outlet ports are on opposite sides, resulting in a relatively complex water channel layout and occupying a large space. 3. The water channels are smooth and unobstructed, but some liquids have low heat transfer efficiency. 4. Once the water channel design is finalized, it remains unchanged, and the heat dissipation performance cannot be adjusted or replaced according to requirements, resulting in poor versatility. 5. The water channels are welded using friction stir welding, which is a slow process and relatively low production efficiency. Summary of the Invention
[0005] To address the aforementioned issues, this invention proposes a controller housing assembly with a water channel structure divided into upper and lower parts. This structure allows for heat dissipation from both sides of the PCBA (Printed Circuit Board Assembly, referring to the entire process of a bare PCB board undergoing SMT component mounting or DIP insertion). Therefore, various components can be arranged on both sides of the bare PCB board, achieving a compact design and reducing material usage and controller size. Each water channel is arranged in an S-shape, with the upper water channel inlet located in the central area of the controller housing assembly. This prioritizes water cooling of the main heat-generating components at the top of the PCB board, achieving optimal cooling performance. When integrated into the vehicle's water circulation system, this invention provides rapid and efficient heat dissipation for the controller. All die-cast parts have a simple structure, requiring minimal mold design and resulting in low cost. The assembly process and sealing method are simple and reliable. The upper and lower cover plates can be manufactured in series with different groove depths, enabling a universal design for controllers of different vehicle models, thus saving on mold costs and development costs.
[0006] A controller housing assembly of the present invention includes an upper water cooling device, a lower water cooling device, and screws, wherein the upper water cooling device and the lower water cooling device are matched and correspondingly contacted and fixedly connected by screws;
[0007] The upper and lower water cooling units are respectively equipped with longitudinally distributed S-shaped upper and lower flow channels to increase the contact area between the fluid and the heat dissipation surface, facilitating rapid heat dissipation. The right ends of the front and rear ends of the upper S-shaped flow channels in the upper water cooling unit are longitudinally connected to the corresponding positions of the lower S-shaped flow channels in the lower water cooling unit via channels, thus forming a complete and unique interconnected water channel throughout the entire casing. This allows coolant to flow from the front and rear ends of the upper S-shaped flow channels into the lower S-shaped flow channels. A coolant inlet hole is provided on the upper surface of the upper water cooling unit, corresponding to the middle right side of the upper S-shaped flow channel. The water inlet can be located above any part of the S-shaped flow channel on the right side, excluding the front and rear ends. The location of the water inlet is determined based on the location of the main heat source on the PCBA, so as to prioritize cooling the hottest area. The inner surface of the lower water cooling device and the upper surface of the upper water cooling device are respectively located on the right side of the S-shaped flow channel of the lower water cooling device. The coolant inlet and outlet are adjacent and located in the same vertical plane. The coolant inlet and outlet are arranged in adjacent positions, and the paths of the inlet and outlet pipes are the same. The pipe layout is convenient and saves space. It is also convenient to connect the inlet and outlet water inlets to the vehicle water circulation system.
[0008] The inner surface of the upper water cooling device and the inner surface of the corresponding adjacent lower water cooling device form a PCBA accommodating cavity so that the PCBA can be accommodated in the PCBA accommodating cavity. The upper water cooling device and the lower water cooling device can respectively perform water cooling heat dissipation on the heat-generating components on the upper and lower end faces of the PCBA.
[0009] The upper water cooling device includes an upper cover plate and an upper base that are interlocked. The lower surface of the upper cover plate has longitudinally distributed S-shaped flow channel grooves die-cast inwards. A coolant inlet hole is formed in the middle right side of the S-shaped flow channel groove on the lower surface of the upper cover plate. A coolant outlet hole is formed on the lower surface of the upper cover plate to the right of the coolant inlet hole. The upper surface of the upper base has an S-shaped flow channel groove die-cast corresponding to the S-shaped flow channel groove on the upper cover plate. A first upper base drain hole and a second upper base drain hole are respectively formed at the right ends of the flow channel groove at the front and rear ends of the S-shaped upper base flow channel groove. The upper base corresponds to the coolant outlet hole on the upper cover plate. The upper base has a water inlet hole. Three triangular positioning posts are protruding from the upper surface of the upper base on the outer edge of the S-shaped upper base flow channel groove at both ends. The lower surface of the upper cover plate has three upper cover plate positioning holes corresponding to the positions of the upper base positioning posts. The lower surface of the upper cover plate is aligned and in close contact with the upper surface of the upper base, and the upper base positioning posts are respectively inserted into the upper cover plate positioning holes to achieve the limiting and fixing of the upper cover plate. The S-shaped upper cover plate flow channel groove and the S-shaped upper base flow channel groove are matched and engaged to form the S-shaped upper flow channel. Both the upper cover plate and the upper base are die-cast parts. The die-cast parts have a simple structure, low mold design difficulty, low cost, and simple and reliable assembly process and sealing method.
[0010] An upper turbulence-inducing pad is fixed between the lower surface of the upper cover plate and the upper surface of the upper base. The upper turbulence-inducing pad has several rows of upper turbulence-inducing holes evenly distributed in its middle. Each of these upper turbulence-inducing holes is located in the upper S-shaped flow channel formed by the interlocking of the S-shaped upper cover plate flow channel groove and the S-shaped upper base flow channel groove. The turbulence-inducing pad with turbulence-inducing holes is sandwiched in the middle of the flow channel. The turbulence-inducing holes cause the liquid flowing in each part of the flow channel to surge and turbulent up and down, thereby achieving full mixing of the liquid, accelerating heat conduction between liquids, and fully homogenizing the temperature, which is beneficial to improving the cooling effect. The upper turbulence-inducing pad has a first lower water through hole, a second lower water through hole, a water through hole, and a third lower water through hole corresponding to the positions of the first upper base water through hole, the second upper base water through hole, the upper base water through hole, and the coolant inlet through hole, respectively. The upper turbulence-inducing pad has a positioning post through hole corresponding to the positions of the upper base positioning posts.
[0011] The lower water cooling device includes a lower cover plate and a lower base that are interlocked. The upper surface of the lower cover plate has longitudinally distributed S-shaped flow channel grooves die-cast inwards. The right-side center of the S-shaped flow channel groove on the upper surface of the lower cover plate has an arc-shaped notch corresponding to the coolant outlet hole of the upper cover plate, allowing coolant in the lower base flow channel to converge there and then flow vertically upwards through the coolant outlet hole. The lower base has an S-shaped flow channel groove corresponding to the position of the S-shaped flow channel groove on the lower cover plate, which is die-cast in place. The base has a flow channel groove. This S-shaped lower base flow channel groove corresponds to the positions of the first upper base drain hole, the second upper base drain hole, and the upper base water inlet hole on the upper base. The lower and upper faces of the first upper base drain holes are in close contact to form a water passage. Similarly, the lower and upper faces of the second upper base drain holes are also in close contact to form a water passage. The upper base water inlet hole... The lower end face and the upper end face of the water passage on the lower base are in close contact to form a water passage, so that the coolant in the upper S-shaped flow channel can flow to the lower S-shaped flow channel to cool the heat-generating components on the lower end face of the PCBA, and the coolant after absorbing heat can flow out through the water passage on the lower base of the S-shaped lower base flow channel, and finally out through the coolant outlet hole of the upper cover plate. Three triangular positioning posts are respectively provided on the lower surface of the lower base with the outer edge of the flow channel groove at the front and rear ends of the S-shaped lower base flow channel groove. The upper surface of the lower cover plate has three positioning holes corresponding to the positions of the positioning pins of the lower base. The upper surface of the lower cover plate is aligned and in close contact with the lower surface of the lower base, and the positioning pins of the lower base are respectively inserted into the positioning holes of the lower cover plate to achieve the limiting and fixing of the lower cover plate. The S-shaped flow channel groove of the lower cover plate matches and engages with the S-shaped flow channel groove of the lower base to form the S-shaped lower flow channel. Both the lower cover plate and the lower base are die-cast parts. The structure of die-cast parts is simple, the mold design is easy, the cost is low, and the assembly process and sealing method are simple and reliable.
[0012] A lower turbulence pad is fixed between the upper surface of the lower cover plate and the lower surface of the lower base. The lower turbulence pad has several rows of lower turbulence holes evenly opened in the middle. Each of the rows of lower turbulence holes is located in the lower S-shaped flow channel formed by the S-shaped flow channel groove of the lower cover plate and the S-shaped flow channel groove of the lower base. The lower turbulence pad has a first lower turbulence through hole, a second lower turbulence through hole, and a higher lower turbulence through hole respectively at the positions of the first lower base water through hole, the second lower base water through hole, and the lower base water through hole. The lower turbulence pad has a lower turbulence pad positioning post through hole respectively at the positions of the lower base positioning posts.
[0013] The lower surface of the upper base has an upwardly recessed connector receiving groove on the left side to accommodate the connector on the PCB board. The PCBA is matched and fixed in the PCBA receiving cavity. The PCBA includes a PCB board, components, and connectors. Various components such as CPUs and MCUs electrically connected to the PCB board are heat sources. The components are electrically connected and fixed to the upper and lower surfaces of the PCB board, respectively. The connector is electrically connected and fixed to the upper surface of the left end of the PCB board, and the connector is matched and seated on the connector receiving groove of the upper base. The PCB board has a first socket hole, a second socket hole, and a missing part of the PCB board respectively corresponding to the water passage on the upper surface of the first lower base water passage hole, the second lower base water passage hole, and the upper surface of the lower base water passage hole. The first socket hole and the second socket hole of the PCB board are respectively sleeved outside the water passage on the upper surface of the first lower base water passage hole and the second lower base water passage hole, respectively. The missing part of the PCB board contacts the water passage on the upper surface of the lower base water passage hole.
[0014] A first sealing gasket is clamped and fixed between the lower end face of the water passage hole of the first upper base and the upper end face of the water passage hole of the first lower base. A second sealing gasket is clamped and fixed between the lower end face of the water passage hole of the second upper base and the upper end face of the water passage hole of the second lower base. A water inlet sealing gasket is clamped and fixed between the lower end face of the water inlet hole of the upper base and the upper end face of the water inlet hole of the lower base. This is to prevent water leakage caused by poor contact between the water passages of the upper base and the lower base, which would affect the safe use of the PCBA.
[0015] An upper base sealing protrusion is provided on the upper surface of the upper base along the outer edge of the S-shaped upper base flow channel groove. This upper base sealing protrusion cooperates with the lower surface of the upper cover plate to clamp and fix the upper turbulence gasket at the corresponding position. A lower base sealing protrusion is provided on the lower surface of the lower base along the outer edge of the S-shaped lower base flow channel groove. This lower base sealing protrusion cooperates with the upper surface of the lower cover plate to clamp and fix the lower turbulence gasket at the corresponding position. After the upper and lower bases are tightened with screws, the compression strength of the upper and lower turbulence gaskets is enhanced, thereby strengthening the overall sealing of the water channel.
[0016] The upper cover plate has a plurality of mounting holes evenly arranged circumferentially on its upper surface. The lower cover plate has a mounting hole corresponding to the mounting holes on its lower surface. The upper turbulence pad has a mounting through hole corresponding to the mounting holes on the upper cover plate. The lower turbulence pad has a mounting through hole corresponding to the mounting holes on the upper cover plate. The upper base has a mounting through hole corresponding to the mounting holes on the upper cover plate. The lower base has a mounting through hole corresponding to the mounting holes on the upper cover plate. The PCB board has a mounting through hole corresponding to the mounting holes on the upper cover plate. Each screw passes through the mounting holes on the upper cover plate, the mounting through hole on the upper turbulence pad, the mounting through hole on the upper base, the mounting through hole on the PCB board, the mounting through hole on the lower base, and the mounting through hole on the lower turbulence pad, and is screwed onto the mounting hole on the lower cover plate. The assembly is circumferentially secured to the controller housing assembly by a plurality of screws, resulting in high assembly production efficiency.
[0017] The depth of the S-shaped upper base flow channel groove and the S-shaped lower base flow channel groove is 1.5mm-2.0mm; the depth of the S-shaped upper cover plate flow channel groove is one of the following values: 1.5mm-2.0mm, 3.0mm-3.5mm, or 4.5mm-5.0mm; the depth of the S-shaped lower cover plate flow channel groove is one of the following values: 1.5mm-2.0mm, 3.0mm-3.5mm, or 4.5mm-5.0mm. The depth of the flow channel grooves of the upper and lower covers can be customized to produce a series of products with different groove depths to suit controllers with different heat dissipation requirements. When upgrading the controller, it is not necessary to replace the upper and lower bases; the corresponding model of the upper and lower covers can be directly replaced to achieve targeted heat dissipation effects for different controller models, demonstrating strong versatility.
[0018] Beneficial effects
[0019] The flow channel structure of this invention is divided into upper and lower parts, which can dissipate heat on both sides of the PCBA. Therefore, various heat-generating components can be arranged on the upper and lower sides of the PCB board, realizing a compact design of the PCB board, thereby reducing the amount of material used in the PCB board and the space size of the controller. Each flow channel is arranged in an S-shape, and the water inlet of the upper flow channel is located in the middle area of the controller housing assembly, giving priority to water cooling of the main heat-generating components at the upper part of the PCB board, achieving the best cooling effect. After being connected to the vehicle's water circulation system, this invention can quickly and efficiently dissipate heat from the controller. The upper and lower cover plates and the upper and lower bases are all die-cast parts. Die-cast parts have a simple structure, low mold design difficulty, low cost, and simple and reliable assembly process and sealing method. The upper and lower cover plates can be made into a series of products with different groove depths, which can achieve a universal design for controllers of different vehicle models, thereby saving some mold costs and development costs. Attached Figure Description
[0020] Figure 1 This is a schematic diagram of the overall structure of the present invention.
[0021] Figure 2 This is an exploded structural diagram of the present invention.
[0022] Figure 3 This is a schematic diagram of the front and back structures of the top cover plate of the present invention.
[0023] Figure 4 This is a schematic diagram of the upper base structure of the present invention.
[0024] Figure 5 This is a schematic diagram of the lower base structure of the present invention.
[0025] Figure 6 This is a schematic diagram of the front and back structures of the lower cover plate of the present invention.
[0026] Figure 7 This is a schematic diagram of the structure of the upper and lower turbulence pads of the present invention.
[0027] Figure 8 This is a top view of the structure of the present invention.
[0028] Figure 9 yes Figure 8 A schematic diagram of the AA-direction cross-sectional structure.
[0029] Figure 10 yes Figure 8 A schematic diagram of the BB-direction cross-sectional structure.
[0030] Figure 11 yes Figure 9 A partially enlarged structural diagram of part C.
[0031] In the picture:
[0032] 1. Upper water cooling device; 11. Upper cover plate; 111. S-shaped upper cover plate flow channel groove; 112. Upper cover plate positioning hole; 113. Upper cover plate mounting hole; 12. Upper base; 121. S-shaped upper base flow channel groove; 122. First upper base water through hole; 123. Second upper base water through hole; 124. Upper base water inlet hole; 125. Upper base positioning post; 126. Connector receiving groove; 127. Upper base sealing protrusion; 128. Upper base mounting through hole; 13. Upper turbulence gasket; 131. Upper turbulence hole; 132. Upper turbulence gasket first water through hole; 133. Upper turbulence gasket second water through hole; 134. Upper turbulence gasket water inlet hole; 135. Upper turbulence gasket third water through hole; 136. Upper turbulence gasket positioning post through hole; 137. Upper turbulence gasket mounting through hole;
[0033] 2. Lower water cooling device; 21. Lower cover plate; 211. S-shaped lower cover plate flow channel groove; 212. Arc-shaped missing groove; 213. Lower cover plate positioning hole; 214. Lower cover plate mounting hole; 22. Lower base; 221. S-shaped lower base flow channel groove; 222. First lower base water through hole; 223. Second lower base water through hole; 224. Lower base water inlet hole; 225. Lower base positioning post; 226. Lower base sealing protrusion; 227. Lower base mounting through hole; 23. Lower turbulence gasket; 231. Lower turbulence hole; 232. Lower turbulence gasket first water through hole; 233. Lower turbulence gasket second water through hole; 234. Lower turbulence gasket water inlet hole; 235. Lower turbulence gasket positioning post through hole; 236. Lower turbulence gasket mounting through hole;
[0034] 3. Screws;
[0035] 4. Coolant inlet hole;
[0036] 5. Coolant outlet hole;
[0037] 6. PCBA; 61. PCB board; 611. First socket hole on PCB board; 612. Second socket hole on PCB board; 613. Missing part on PCB board; 614. Mounting via hole on PCB board; 62. Component; 63. Connector;
[0038] 7. First sealing gasket;
[0039] 8. Second sealing gasket;
[0040] 9. Water sealing gasket. Detailed Implementation
[0041] To make the technical problems solved by the present invention, the technical solutions adopted, and the technical effects achieved clearer, the technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely for explaining the present invention and are not intended to limit the present invention. Furthermore, it should be noted that, for ease of description, only the parts related to the present invention are shown in the accompanying drawings, not all of them.
[0042] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for 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 the invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The terms "first position" and "second position" refer to two different positions.
[0043] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections or detachable connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components. Those skilled in the art can understand the specific meaning of these terms in this invention based on the specific circumstances.
[0044] Example 1
[0045] See Figures 1-11 As shown, a controller housing assembly includes an upper water cooling device 1, a lower water cooling device 2, and screws 3. The upper water cooling device 1 and the lower water cooling device 2 are matched and contacted with each other and are fixedly connected by ten screws 3.
[0046] The upper water cooling device 1 and the lower water cooling device 2 are respectively provided with longitudinally distributed S-shaped upper flow channels and S-shaped lower flow channels. The right end of the front and rear ends of the S-shaped upper flow channel of the upper water cooling device 1 and the corresponding position of the S-shaped lower flow channel of the lower water cooling device 2 are longitudinally connected by water passages. A coolant inlet hole 4 is provided on the upper surface of the upper water cooling device corresponding to the middle right side of the S-shaped flow channel of the upper water cooling device 1. A coolant outlet hole 5 is provided on the inner surface of the lower water cooling device corresponding to the middle right side of the S-shaped flow channel of the lower water cooling device 2 and the corresponding position on the upper surface of the upper water cooling device 1. The coolant inlet hole 4 and the coolant outlet hole 5 are adjacent to each other and located in the same vertical plane.
[0047] The inner surface of the upper water cooling device 1 and the inner surface of the corresponding adjacent lower water cooling device 2 form a PCBA accommodating cavity.
[0048] See Figures 3-4 as well as Figure 7As shown, the upper water cooling device 1 includes an upper cover plate 11 and an upper base 12 that are interlocked. The lower surface of the upper cover plate 11 has longitudinally distributed S-shaped upper cover plate flow channel grooves 111 die-cast inwards. A coolant inlet hole 4 is provided in the groove at the middle right side of the S-shaped upper cover plate flow channel groove 111 on the lower surface of the upper cover plate 11. A coolant outlet hole 5 is provided on the lower surface of the upper cover plate 11 to the right of the coolant inlet hole 4. The upper surface of the upper base 12 has an S-shaped upper base flow channel groove 121 die-cast corresponding to the position of the S-shaped upper cover plate flow channel groove 111 on the upper cover plate 11. First upper base lower water passage holes 12 are respectively provided at the right ends of the flow channel grooves at the front and rear ends of the S-shaped upper base flow channel groove 121. 2. The upper base 12 has a water outlet hole 123 and a water outlet hole 124 corresponding to the coolant outlet hole 5 of the upper cover plate 11. Three triangular positioning posts 125 are respectively provided on the upper surface of the upper base at the outer edge of the flow channel groove 111 at the front and rear ends of the S-shaped upper base flow channel groove. The lower surface of the upper cover plate 11 has three upper cover plate positioning holes 112 corresponding to the positions of the upper base positioning posts 125. The lower surface of the upper cover plate 11 is aligned and in close contact with the upper surface of the upper base 12, and the upper base positioning posts 125 are respectively inserted into the upper cover plate positioning holes 112. The S-shaped upper cover plate flow channel groove 111 and the S-shaped upper base flow channel groove 121 are matched and engaged to form the S-shaped upper flow channel.
[0049] An upper turbulence pad 13 is fixedly sandwiched between the lower surface of the upper cover plate 11 and the upper surface of the upper base 12. The upper turbulence pad 13 has five rows of upper turbulence holes 131 evenly opened in the middle. Each of the five rows of upper turbulence holes 131 is located in the upper S-shaped flow channel formed by the S-shaped upper cover plate flow channel groove 111 and the S-shaped upper base flow channel groove 121. The upper turbulence pad 13 has a first upper turbulence pad water through hole 132, a second upper turbulence pad water through hole 133, an upper turbulence pad water through hole 134, and a third upper turbulence pad water through hole 135 respectively at the positions of the first upper base water through hole 122, the second upper base water through hole 123, the upper base water through hole 124, and the coolant inlet water through hole 4. The upper turbulence pad 13 has a positioning post through hole 136 respectively at the position of the upper base positioning post 125.
[0050] See Figures 5-7As shown, the lower water cooling device 2 includes a lower cover plate 21 and a lower base 22 that are interlocked. The upper surface of the lower cover plate 21 is die-cast inward with longitudinally distributed S-shaped lower cover plate flow channel grooves 211. The end of the groove on the right side of the S-shaped lower cover plate flow channel groove 211 on the upper surface of the lower cover plate 21 corresponds to the position of the coolant outlet hole 5 of the upper cover plate 11 and has an arc-shaped missing groove 212. The lower surface of the lower base 22 is die-cast with an S-shaped lower base flow channel groove 221 corresponding to the position of the S-shaped lower cover plate flow channel groove 211 of the lower cover plate 21. The S-shaped lower base flow channel groove 221 is die-cast with the first lower base water through hole 122, the second lower base water through hole 123, and the upper base water through hole 124 of the upper base 12, respectively. The lower end face of the first upper base water through hole 122 A water passage is formed by the tight contact between the upper end face of the first lower base water passage hole 222 and the lower end face of the second upper base water passage hole 123 and the upper end face of the second lower base water passage hole 223. A water passage is formed by the tight contact between the lower end face of the upper base water passage hole 124 and the upper end face of the lower base water passage hole 224. Three triangular positioning pins 225 are respectively provided on the lower surface of the lower base 22 at the outer edge of the flow channel groove 221 at the front and rear ends of the S-shaped lower base flow channel groove 221. Three lower cover plate positioning holes 213 are provided on the upper surface of the lower cover plate 21 corresponding to the positions of the lower base positioning pins 225. The upper surface of the lower cover plate 21 is aligned and tightly contacted with the lower surface of the lower base 22, and the lower base positioning pins 225 are respectively inserted into the lower cover plate positioning holes 213. The S-shaped lower cover plate flow channel groove 211 and the S-shaped lower base flow channel groove 221 are matched and correspondingly fastened to form the S-shaped lower flow channel.
[0051] A lower turbulence pad 23 is fixedly sandwiched between the upper surface of the lower cover plate 21 and the lower surface of the lower base 22. The lower turbulence pad 23 has five rows of lower turbulence holes 231 evenly opened in the middle. Each of the five rows of lower turbulence holes 231 is located in the S-shaped lower flow channel formed by the S-shaped lower cover plate flow channel groove 211 and the S-shaped lower base flow channel groove 221. The lower turbulence pad 23 has a first lower turbulence pad water through hole 232, a second lower turbulence pad water through hole 233, and a lower turbulence pad water through hole 234 respectively at the positions of the first lower base water through hole 222, the second lower base water through hole 223, and the lower base water through hole 224. The lower turbulence pad 23 has a lower turbulence pad positioning post through hole 235 respectively at the positions of the lower base positioning post 225.
[0052] See Figure 2 and Figures 9-10As shown, a connector receiving groove 126 is recessed upward on the left side of the lower surface of the upper base 12. A PCBA6 is fitted and fixed within the PCBA receiving cavity. The PCBA6 includes a PCB board 61, components 62, and a connector 63. Components 62 are electrically connected and fixed to the upper and lower surfaces of the PCB board 61, respectively. The connector 63 is electrically connected and fixed to the upper surface of the left end of the PCB board 61, and the connector 63 is fitted and seated on the connector receiving groove 126 of the upper base 12. The PCB board 61 has a water passage on the upper surface of the first lower base drain hole 222 corresponding to the water passage on the upper surface of the lower base 22. The water passage on the upper surface of the lower base water passage 223 and the water passage on the upper surface of the lower base water passage 224 are respectively provided with a first PCB board socket 611, a second PCB board socket 612, and a PCB board missing part 613. The first PCB board socket 611 and the second PCB board socket 612 are respectively sleeved on the water passage on the upper surface of the first lower base water passage 222 and the water passage on the upper surface of the second lower base water passage 223 of the lower base 22, and the PCB board missing part 613 contacts the water passage on the upper surface of the lower base water passage 224.
[0053] See Figure 2 , Figures 4-5 As shown, a first sealing gasket 7 is clamped and fixed between the lower end face of the first upper base water through hole 122 and the upper end face of the first lower base water through hole 222; a second sealing gasket 8 is clamped and fixed between the lower end face of the second upper base water through hole 123 and the upper end face of the second lower base water through hole 223; and an upper water sealing gasket 9 is clamped and fixed between the lower end face of the upper base water through hole 124 and the upper end face of the lower base water through hole 224.
[0054] See Figures 4-5 , Figures 9-11 As shown, an upper base sealing protrusion 127 is provided on the upper surface of the upper base 12 at the outer edge of the S-shaped upper base flow channel groove 121. The upper base sealing protrusion 127 cooperates with the lower surface of the upper cover plate 11 to clamp and fix the upper turbulence gasket 13 at the corresponding position. A lower base sealing protrusion 226 is provided on the lower surface of the lower base 22 at the outer edge of the S-shaped lower base flow channel groove 221. The lower base sealing protrusion 226 cooperates with the upper surface of the lower cover plate 21 to clamp and fix the lower turbulence gasket 23 at the corresponding position.
[0055] See Figures 2-7As shown, the upper cover plate 11 has eight upper cover plate mounting holes 113 evenly arranged circumferentially on its upper surface. The lower cover plate 21 has lower cover plate mounting holes 214 circumferentially corresponding to the positions of the upper cover plate mounting holes 113 on its lower surface. The upper turbulence pad 13 has an upper turbulence pad mounting through hole 137 corresponding to the positions of the upper cover plate mounting holes 113. The lower turbulence pad 23 has a lower turbulence pad mounting through hole 236 corresponding to the positions of the upper cover plate mounting holes 113. The upper base 12 has an upper base mounting hole 12 corresponding to the positions of the upper cover plate mounting holes 113. The lower base 22 has a lower base mounting through hole 227 corresponding to the upper cover mounting hole 113. The PCB board 61 has a PCB board mounting through hole 614 corresponding to the upper cover mounting hole 113. Each screw 3 passes through the upper cover mounting hole 113, the upper spoiler pad mounting through hole 137, the upper base mounting through hole 128, the PCB board mounting through hole 614, the lower base mounting through hole 227, and the lower spoiler pad mounting through hole 236 respectively and is screwed onto the lower cover mounting hole 214.
[0056] The depth of the S-shaped upper base flow channel groove 121 is 1.5mm, and the depth of the S-shaped lower base flow channel groove 221 is 1.5mm; the depth of the S-shaped upper cover plate flow channel groove 111 is specification 1#: 1.5mm, and the depth of the S-shaped lower cover plate flow channel groove 211 is specification 1#: 1.5mm.
[0057] Example 2
[0058] A controller housing assembly differs from Embodiment 1 in that the depth of the S-shaped upper base flow channel groove 121 is 1.75mm, the depth of the S-shaped lower base flow channel groove 221 is 1.75mm, the depth of the S-shaped upper cover plate flow channel groove 111 is specification 1#: 1.75mm, and the depth of the S-shaped lower cover plate flow channel groove 211 is specification 1#: 1.75mm.
[0059] Example 3
[0060] A controller housing assembly differs from Embodiment 1 in that the depth of the S-shaped upper base flow channel groove 121 is 2.0 mm, the depth of the S-shaped lower base flow channel groove 221 is 2.0 mm, the depth of the S-shaped upper cover plate flow channel groove 111 is specification 1#: 2.0 mm, and the depth of the S-shaped lower cover plate flow channel groove 211 is specification 1#: 2.0 mm.
[0061] Example 4
[0062] A controller housing assembly differs from Embodiment 1 in that the depth of the S-shaped upper base flow channel groove 121 is 1.5mm, the depth of the S-shaped lower base flow channel groove 221 is 1.5mm; the depth of the S-shaped upper cover plate flow channel groove 111 is 3.25mm (specification 2#), and the depth of the S-shaped lower cover plate flow channel groove 211 is 3.25mm (specification 2#).
[0063] Example 5
[0064] A controller housing assembly differs from Embodiment 1 in that the depth of the S-shaped upper base flow channel groove 121 is 2.0 mm, the depth of the S-shaped lower base flow channel groove 221 is 2.0 mm, the depth of the S-shaped upper cover plate flow channel groove 111 is 4.75 mm (specification 3#), and the depth of the S-shaped lower cover plate flow channel groove 211 is 4.75 mm (specification 3#).
[0065] Example 6
[0066] A controller housing assembly differs from Embodiment 1 in that the depth of the S-shaped upper base flow channel groove 121 is 1.75mm, the depth of the S-shaped lower base flow channel groove 221 is 1.75mm, the depth of the S-shaped upper cover plate flow channel groove 111 is 3.0mm (specification 2#), and the depth of the S-shaped lower cover plate flow channel groove 211 is 3.0mm (specification 2#).
[0067] Example 7
[0068] A controller housing assembly differs from Embodiment 1 in that the depth of the S-shaped upper base flow channel groove 121 is 1.75mm, the depth of the S-shaped lower base flow channel groove 221 is 1.75mm, the depth of the S-shaped upper cover plate flow channel groove 111 is 3.5mm (specification 2#), and the depth of the S-shaped lower cover plate flow channel groove 211 is 3.5mm (specification 2#).
[0069] Example 8
[0070] A controller housing assembly differs from Embodiment 1 in that the depth of the S-shaped upper base flow channel groove 121 is 1.75mm, the depth of the S-shaped lower base flow channel groove 221 is 1.75mm, the depth of the S-shaped upper cover plate flow channel groove 111 is 4.5mm (specification 3#), and the depth of the S-shaped lower cover plate flow channel groove 211 is 4.5mm (specification 3#).
[0071] Example 9
[0072] A controller housing assembly differs from Embodiment 1 in that the depth of the S-shaped upper base flow channel groove 121 is 1.75mm, the depth of the S-shaped lower base flow channel groove 221 is 1.75mm, the depth of the S-shaped upper cover plate flow channel groove 111 is 5.0mm (specification 3#), and the depth of the S-shaped lower cover plate flow channel groove 211 is 5.0mm (specification 3#).
[0073] Although the invention has been specifically shown and described in conjunction with preferred embodiments, those skilled in the art should understand that various changes in form and detail may be made to the invention without departing from the spirit and scope of the invention as defined in the appended claims, all of which shall be within the scope of protection of the invention.
Claims
1. A controller housing assembly; characterized in that: It includes an upper water cooling device (1), a lower water cooling device (2) and screws (3). The upper water cooling device (1) and the lower water cooling device (2) are matched and connected by screws (3). The upper water cooling device (1) and the lower water cooling device (2) are respectively provided with longitudinally distributed S-shaped upper flow channels and S-shaped lower flow channels. The right end of the front and rear ends of the S-shaped upper flow channel of the upper water cooling device (1) and the corresponding position of the S-shaped lower flow channel of the lower water cooling device (2) are respectively connected longitudinally through water passages. A coolant inlet hole (4) is provided on the upper surface of the upper water cooling device corresponding to the middle right side of the S-shaped flow channel of the upper water cooling device (1). The coolant inlet hole (4) is provided on the upper surface of the upper water cooling device. 4) The inlet position is determined based on the location of the main heat source on the PCBA, so as to prioritize cooling the hottest area. The inner surface of the lower water cooling device (2) corresponding to the middle of the right side of the S-shaped flow channel and the upper surface of the upper water cooling device (1) are provided with coolant outlet holes (5). The coolant inlet holes (4) and coolant outlet holes (5) are adjacent and located in the same vertical plane. The inner surface of the upper water cooling device (1) and the inner surface of the corresponding adjacent lower water cooling device (2) form a PCBA accommodating cavity.
2. The controller housing assembly according to claim 1, characterized in that: The upper water cooling device (1) includes an upper cover plate (11) and an upper base plate (12) that are interlocked. The lower surface of the upper cover plate (11) is die-cast inward with longitudinally distributed S-shaped upper cover plate flow channel grooves (111). A coolant inlet hole (4) is opened in the groove in the middle of the right side of the S-shaped upper cover plate flow channel groove (111) on the lower surface of the upper cover plate (11). A coolant outlet hole (5) is opened on the lower surface of the upper cover plate (11) to the right of the coolant inlet hole (4). The upper surface of the upper base plate (12) is die-cast with an S-shaped upper base flow channel groove (121) corresponding to the position of the S-shaped upper cover plate flow channel groove (111) on the upper cover plate (11). The right side ends of the flow channel grooves at the front and rear ends of the S-shaped upper base flow channel groove (121) are respectively provided with a first upper base lower water through hole (122). The upper base (12) has a water outlet hole (123) and a water outlet hole (124) on the upper base (12) corresponding to the coolant outlet hole (5) of the upper cover plate (11). The upper base surface of the upper base with three triangular positioning structure upper base positioning posts (125) are respectively provided on the outer edge of the flow channel groove (111) at the front and rear ends. The lower surface of the upper cover plate (11) is provided with three upper cover plate positioning holes (112) corresponding to the upper base positioning posts (125). The lower surface of the upper cover plate (11) is aligned and tightly contacted with the upper surface of the upper base (12), and the upper base positioning posts (125) are respectively inserted into the upper cover plate positioning holes (112). The S-shaped upper cover plate flow channel groove (111) and the S-shaped upper base flow channel groove (121) are matched and locked together to form the S-shaped upper flow channel.
3. A controller housing assembly according to claim 2, characterized in that: An upper turbulence pad (13) is fixedly sandwiched between the lower surface of the upper cover plate (11) and the upper surface of the upper base (12). The upper turbulence pad (13) has several rows of upper turbulence holes (131) evenly distributed in the middle. Each of the several rows of upper turbulence holes (131) is located in the upper S-shaped flow channel formed by the S-shaped upper cover plate flow channel groove (111) and the S-shaped upper base flow channel groove (121). The upper turbulence pad (13) corresponds to the lower water passage hole of the first upper base. (122) The upper turbulence pad is provided with a first water passage hole (132), a second water passage hole (133), a water passage hole (134) on the upper base and a coolant inlet passage hole (4) respectively. The upper turbulence pad (13) is provided with a positioning post hole (136) on the upper base corresponding to the positioning post (125) on the upper base respectively.
4. A controller housing assembly according to claim 3, characterized in that: The lower water cooling device (2) includes a lower cover plate (21) and a lower base (22) that are interlocked. The upper surface of the lower cover plate (21) is die-cast inward with longitudinally distributed S-shaped lower cover plate flow channel grooves (211). The right middle part of the groove end of the S-shaped lower cover plate flow channel groove (211) on the upper surface of the lower cover plate (21) is provided with an arc-shaped missing groove (212) corresponding to the position of the coolant outlet hole (5) of the upper cover plate (11). The lower surface of the lower base (22) corresponds to the S-shaped lower cover plate (21) of the lower cover plate (21). The cover plate flow channel groove (211) is matched with the die-cast S-shaped lower base flow channel groove (221). The S-shaped lower base flow channel groove (221) is provided with the first lower base water through hole (122), the second lower base water through hole (123), and the upper base water through hole (124) of the upper base (12), respectively. The first lower base water through hole (122), the second lower base water through hole (223), and the lower base water through hole (224) are respectively provided. The lower end face of the first lower base and the upper end face of the water passage hole (222) of the first lower base are in close contact to form a water passage channel. The lower end face of the second upper base water passage hole (123) and the upper end face of the second lower base water passage hole (223) of the second upper base are in close contact to form a water passage channel. The lower end face of the upper base water passage hole (124) and the upper end face of the lower base water passage hole (224) of the lower base are in close contact to form a water passage channel. Three protrusions are respectively provided on the lower surface of the lower base (22) at the outer edge of the flow channel groove (221) of the S-shaped lower base. The lower base positioning post (225) of the triangular positioning structure is provided with three lower cover plate positioning holes (213) on the upper surface of the lower cover plate (21) corresponding to the position of the lower base positioning post (225); the upper surface of the lower cover plate (21) is aligned and in close contact with the lower surface of the lower base (22), and the lower base positioning post (225) is respectively inserted into the lower cover plate positioning hole (213). The S-shaped lower cover plate flow channel groove (211) and the S-shaped lower base flow channel groove (221) are matched and correspondingly fastened to form the S-shaped lower flow channel.
5. A controller housing assembly according to claim 4, characterized in that: A lower turbulence pad (23) is fixedly sandwiched between the upper surface of the lower cover plate (21) and the lower surface of the lower base (22). The lower turbulence pad (23) has several rows of lower turbulence holes (231) evenly distributed in its center. Each of these lower turbulence holes (231) is located within the S-shaped lower flow channel formed by the S-shaped lower cover plate flow channel groove (211) and the S-shaped lower base flow channel groove (221). 3) A first drainage through hole (232), a second drainage through hole (233), and a water inlet through hole (224) of the lower base are respectively provided at the positions of the first lower base drainage through hole (222), the second lower base drainage through hole (223), and the lower base water inlet through hole (224); a lower turbulence pad (23) is provided at the position of the lower base positioning post (225) with a lower turbulence pad positioning post through hole (235).
6. A controller housing assembly according to claim 5, characterized in that: The lower surface of the upper base (12) is recessed upward on the left side for a connector receiving groove (126). A PCBA (6) is fitted and fixed inside the PCBA receiving cavity. The PCBA (6) includes a PCB board (61), components (62), and a connector (63). The components (62) are electrically connected and fixed to the upper and lower surfaces of the PCB board (61), and the connector (63) is electrically connected and fixed to the upper surface of the left end of the PCB board (61). The connector (63) is fitted and seated on the connector receiving groove (126) of the upper base (12). The PCB board (61) corresponds to the water passage on the upper surface of the first lower base water passage hole (222) of the lower base (22). The water passage on the upper surface of the water passage hole (223) of the second lower base and the water passage on the upper surface of the water passage hole (224) of the lower base are respectively provided with a first socket hole (611), a second socket hole (612) of the PCB board and a missing part (613) of the PCB board. The first socket hole (611) and the second socket hole (612) of the PCB board are respectively sleeved on the water passage on the upper surface of the first lower base water passage hole (222) and the water passage on the upper surface of the second lower base water passage hole (223) of the lower base (22), and the missing part (613) of the PCB board is in contact with the water passage on the upper surface of the water passage hole (224) of the lower base.
7. A controller housing assembly according to claim 6, characterized in that: A first sealing gasket (7) is clamped and fixed between the lower end face of the first upper base water through hole (122) and the upper end face of the first lower base water through hole (222). A second sealing gasket (8) is clamped and fixed between the lower end face of the second upper base water through hole (123) and the upper end face of the second lower base water through hole (223). A water sealing gasket (9) is clamped and fixed between the lower end face of the upper base water through hole (124) and the upper end face of the lower base water through hole (224).
8. A controller housing assembly according to claim 7, characterized in that: An upper base sealing protrusion (127) is provided on the upper surface of the upper base (12) at the outer edge of the S-shaped upper base flow channel groove (121). The upper base sealing protrusion (127) cooperates with the lower surface of the upper cover plate (11) to clamp and fix the upper turbulence gasket (13) at the corresponding position. A lower base sealing protrusion (226) is provided on the lower surface of the lower base (22) at the outer edge of the S-shaped lower base flow channel groove (221). The lower base sealing protrusion (226) cooperates with the upper surface of the lower cover plate (21) to clamp and fix the lower turbulence gasket (23) at the corresponding position.
9. A controller housing assembly according to claim 8, characterized in that: The upper cover plate (11) has a plurality of upper cover plate mounting holes (113) evenly arranged circumferentially on its upper surface. The lower cover plate (21) has a lower cover plate mounting hole (214) circumferentially corresponding to the upper cover plate mounting holes (113) on its lower surface. The upper turbulence pad (13) has an upper turbulence pad mounting through hole (137) corresponding to the upper cover plate mounting hole (113). The lower turbulence pad (23) has a lower turbulence pad mounting through hole (236) corresponding to the upper cover plate mounting hole (113). The upper base (12) has an upper base mounting through hole (137) corresponding to the upper cover plate mounting hole (113). 28), the lower base (22) is provided with a lower base mounting through hole (227) corresponding to the upper cover mounting hole (113), and the PCB board (61) is provided with a PCB board mounting through hole (614) corresponding to the upper cover mounting hole (113). Each screw (3) passes through the upper cover mounting hole (113), the upper turbulence pad mounting through hole (137), the upper base mounting through hole (128), the PCB board mounting through hole (614), the lower base mounting through hole (227), and the lower turbulence pad mounting through hole (236) respectively and is screwed into the lower cover mounting hole (214).
10. A controller housing assembly according to claim 9, characterized in that: The depth of the S-shaped upper base flow channel groove (121) is 1.5mm-2.0mm, and the depth of the S-shaped lower base flow channel groove (221) is 1.5mm-2.0mm; the depth of the S-shaped upper cover plate flow channel groove (111) is one of the following values: 1.5mm-2.0mm, 3.0mm-3.5mm, or 4.5mm-5.0mm, and the depth of the S-shaped lower cover plate flow channel groove (211) is one of the following values: 1.5mm-2.0mm, 3.0mm-3.5mm, or 4.5mm-5.0mm.