Shell structure for domain controller, domain controller and vehicle
Through the combined structure of non-metallic shell, metal shield and thermal conduction components, the problems of large weight and poor heat dissipation of the domain controller are solved, and lightweight and efficient heat dissipation are achieved, meeting the heat dissipation needs of automobile lightweight and complex circuit boards.
Patent Information
- Application Number
- CN202422391333.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-29
- Publication Date
- 2025-07-25
- Estimated Expiration
- 2034-09-29
AI Technical Summary
The existing domain controller shell structure is large in weight and has poor heat dissipation effect, making it difficult to meet the heat dissipation needs of lightweight and complex circuit boards in automobiles.
The combination structure of a non-metal shell, a metal shield and a thermal conduction element is adopted, and the boss of the thermal conduction element is attached to the electronic device, and the heat dissipation fins and fans are combined to form a lightweight and efficient heat dissipation system.
It realizes the lightweight of the domain controller, reduces weight and improves heat dissipation efficiency, and ensures the performance stability of the domain controller.
Smart Images
Figure CN223157391U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a containing structure, in particular to a housing structure for a domain controller. Background Art
[0002] With the continuous development of the technology in the automotive industry, lightweight has become one of the research directions and hotspots in the industry, which is of great significance for improving endurance, reducing energy consumption, enhancing safety performance, and controlling product prices. Therefore, optimizing the structure of the domain controller to reduce weight and cost is one of the ways to maintain the comprehensive competitiveness of the product.
[0003] Currently, the housing of the vehicle domain controller is mainly manufactured by the aluminum alloy integral die-casting method. However, with the continuous development and progress of technology and products, in order to achieve more complex driving and entertainment functions and improve the user's driving experience, the internal circuit board of the domain controller has become increasingly complex, and the volume and weight of the domain controller are also constantly increasing. On the other hand, automotive lightweight is an inevitable trend in the industry development, so the weight control of the domain controller is also necessary. Summary of the Utility Model
[0004] One of the purposes of the utility model is to provide a housing structure for a domain controller. The housing structure adopts a lightweight structural solution, which can effectively reduce the weight of the domain controller on the premise of meeting the performance requirements, and can also play an effective heat dissipation role for the domain controller.
[0005] To achieve the above purpose, the utility model proposes a housing structure for a domain controller, which includes:
[0006] A non-metallic housing;
[0007] A metal shielding cover, which is arranged inside the non-metallic housing, and a containing space is formed inside the metal shielding cover;
[0008] A heat conduction element, which is arranged inside the containing space, and the heat conduction element has at least one boss protruding from its body, and the at least one boss is used for respectively and correspondingly abutting and connecting with at least one electronic device of the domain controller;
[0009] A cover plate, which is connected to the non-metallic housing.
[0010] Further, in the housing structure of the utility model, the metal shielding cover is provided with a heat dissipation hole area, and the position of the non-metallic housing corresponding to the heat dissipation hole area has a hollowed-out part.
[0011] Further, in the housing structure of the utility model, the non-metallic housing is configured as a plastic housing.
[0012] Further, in the housing structure of the present utility model, the heat conducting element is an aluminum heat conducting element or an aluminum alloy heat conducting element.
[0013] Further, in the housing structure of the present utility model, the heat conducting element has a plurality of upright heat dissipation fins, and heat dissipation channels are formed between adjacent heat dissipation fins.
[0014] Further, in the housing structure of the present utility model, an elastic piece is provided at the lower edge of the metal shielding cover.
[0015] Further, in the housing structure of the present utility model, the elastic piece at least includes a first elastic piece and a second elastic piece. The first elastic piece abuts against the cover plate, and the second elastic piece is used to abut against the printed circuit board of the domain controller.
[0016] Further, in the housing structure of the present utility model, a heat conducting material layer is provided on the surface of the boss for corresponding abutting connection with the electronic device of the domain controller.
[0017] Further, in the housing structure of the present utility model, the heat conducting material layer includes a heat conducting silicone grease layer.
[0018] Another object of the present utility model is to provide a domain controller which is light in its own weight and can dissipate heat quickly to ensure the stable performance of the domain controller.
[0019] Based on the above object, the present utility model further provides a domain controller, which includes the housing structure as described above and a printed circuit board disposed in the housing structure, and electronic devices are provided on the printed circuit board.
[0020] Further, the domain controller of the present utility model further includes a fan, which is disposed in the housing structure.
[0021] Another object of the present utility model is to provide a vehicle which has the domain controller as described above.
[0022] The housing structure of the present utility model is light in structure, has a lower manufacturing cost, and also achieves a good heat dissipation effect through the heat conducting element, which is beneficial to ensuring the stable performance of the domain controller. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] Figure 1 Shows a schematic exploded view of the housing structure of the present utility model in one embodiment.
[0024] Figure 2 Shows the external structure of the housing structure (excluding the cover plate) of the present utility model in one embodiment from one perspective.
[0025] Figure 3 Shows the external structure of the housing structure (excluding the cover plate) of the present utility model from another perspective in one embodiment.
[0026] Figure 4 Shows a top view of the housing structure (excluding the cover plate) of the present utility model in one embodiment.
[0027] Figure 5 Shows a schematic diagram of the split structure of the housing structure (excluding the cover plate) of the present utility model in one embodiment.
[0028] Figure 6 Shows a schematic diagram of the split structure of the domain controller of the present utility model in one embodiment. Detailed implementation manners
[0029] The following will further explain and illustrate the housing structure, domain controller and vehicle of the present utility model in conjunction with the specification drawings and specific embodiments. However, this explanation and illustration shall not unduly limit the technical solution of the present utility model.
[0030] Currently, the housing of vehicle domain controllers is mainly manufactured by integral die-casting of aluminum alloy. However, with the continuous development and progress of technology and products, in order to achieve more complex driving and entertainment functions and improve the user's driving experience, the internal circuit boards of domain controllers have become increasingly complex, and the volume and weight of domain controllers have also been continuously increasing. On the other hand, automotive lightweighting is an inevitable trend in the industry. Therefore, weight control of domain controllers is also necessary.
[0031] Based on this, in one embodiment of the present utility model, a housing structure for a domain controller is proposed to solve the above problems.
[0032] Figure 1 Shows a schematic diagram of the split structure of the housing structure of the present utility model in one embodiment.
[0033] Figure 2 Shows the external structure of the housing structure (excluding the cover plate) of the present utility model from one perspective in one embodiment.
[0034] Figure 3 Shows the external structure of the housing structure (excluding the cover plate) of the present utility model from another perspective in one embodiment.
[0035] As Figure 1 , Figure 2 and Figure 3 shown, in some embodiments, the housing structure for a domain controller may include:
[0036] A non-metallic housing 1 and a cover plate 2 connected to the non-metallic housing 1, thereby forming a relatively enclosed inner space of the housing. As Figure 1 shown, in some more specific embodiments, the non-metallic housing 1 can be connected to the cover plate by connecting bolts 21. In some other more specific embodiments, the non-metallic housing can also be connected to the cover plate by other means, such as by snap-fastening to the cover plate.
[0037] In some more preferred embodiments, in order to achieve the purpose of reducing the weight of the non-metallic housing while still meeting the requirements of the mechanical properties of the housing structure, the non-metallic housing 1 can be configured as a plastic housing.
[0038] More specifically, the non-metallic housing 1 can be injection-molded from engineering plastics, whose material properties are close to those of aluminum alloy, but the density is only 40% of that of aluminum alloy. At the same time, it has higher flexibility in structural design, thus greatly reducing the weight of the housing structure while effectively reducing the manufacturing cost.
[0039] As Figure 2 shown, in some more specific embodiments, the inner surface of the non-metallic housing can be provided with an installation structure 13, such as screw posts, for supporting the stacked installation of other components.
[0040] Continuing to refer to Figure 1 、 Figure 2 and Figure 3 shown, the housing structure further includes a metal shielding cover 3 disposed inside the non-metallic housing. A receiving space is formed inside the metal shielding cover 3. Since the non-metallic housing adopted in the present invention has almost no electrical conductivity and thus cannot effectively block the penetration of high-frequency electromagnetic waves, a metal shielding cover 3 is provided inside the non-metallic housing in the present invention to form a metal shielding layer to meet the test requirements of electromagnetic compatibility.
[0041] In some more specific embodiments, the metal shielding cover 3 can be obtained by stamping from a single piece of thin stainless steel plate.
[0042] Continuing to refer to Figure 1 、 Figure 2 and Figure 3 shown, the housing structure further includes a heat-conducting element 4. The heat-conducting element has at least one boss 41 protruding from its body. The at least one boss 41 is used to respectively abut and connect with at least one electronic device of the domain controller for heat exchange therewith, thereby playing a role in dissipating heat from the electronic device. In this way, the heat-conducting element 4 can simultaneously dissipate heat and cool the heat-generating electronic devices on the domain controller through a plurality of bosses 41, effectively avoiding the problem of uneven heat dissipation.
[0043] In some more specific embodiments, in order to further achieve lightweight design while taking into account the thermal conductivity, the heat conducting element 4 can be made of aluminum or aluminum alloy. For example, the heat conducting element 4 can be formed by die-casting or extrusion of aluminum alloy.
[0044] In some embodiments, as Figure 1 shown, the non-metallic housing 1, the metal shielding cover 3, and the heat conducting element 4 can be assembled together by screws 12. Threaded holes can be provided on the heat conducting element 4, and through holes can be provided on the non-metallic housing 1 and the metal shielding cover 3.
[0045] In some other embodiments, the metal shielding cover 3 can also be installed in the non-metallic housing by hot melting through hot melt posts provided on the non-metallic housing 1. In still some other embodiments, the metal shielding cover can also be directly formed in the metal housing by secondary injection molding of a mold.
[0046] Figure 4 shows a top view of the housing structure (excluding the cover plate) of the present utility model in one embodiment.
[0047] Figure 5 shows a schematic exploded view of the housing structure (excluding the cover plate) of the present utility model in one embodiment.
[0048] As Figure 1 and Figure 5 shown, in order to further improve the heat dissipation performance of the housing structure, in some embodiments, several heat dissipation hole regions 31 can be provided on the metal shielding cover 3, which is beneficial to heat dissipation on the premise of minimizing the impact on electromagnetic compatibility. At the same time, several hollow portions 11 are also provided at the positions corresponding to the heat dissipation hole regions 31 on the non-metallic housing 1 to facilitate ventilation and heat dissipation.
[0049] As Figure 2 、 Figure 4 and Figure 5 shown, in some more specific embodiments, a spring piece 32 can also be provided at the lower edge of the metal shielding cover 3. Through the spring piece 32, the metal shielding cover 3 can be in interference-fit contact with the cover plate 2 and the printed circuit board of the domain controller, so as to more effectively form a metal shielding layer.
[0050] In some more specific embodiments, the spring piece 32 can include several first spring pieces 321 for abutting against the cover plate 2, which are generally arranged on the outer ring of the lower edge of the metal shielding cover. In addition, the spring piece 32 can also include several second spring pieces 322 for abutting against the printed circuit board of the domain controller. It should be noted that the shape and distribution distance of each spring piece can be implemented according to specific shielding requirements, including but not limited to full coverage contact with the components with which it abuts and connects.
[0051] In some more preferred embodiments, such as Figure 2 , Figure 4 and Figure 5 shown, the heat conducting element 4, more specifically on the back side of the surface where the boss is located, has a number of upright heat dissipation fins 42, and heat dissipation channels 43 are formed between adjacent heat dissipation fins. In this setting, the heat dissipation fins 42 increase the heat dissipation area of the heat conducting element 4, thereby improving the passive heat dissipation capacity. Moreover, the heat dissipation channels 43 formed by the heat dissipation fins 42 can also guide the air, and when combined with a fan, an air duct can be formed, so as to further remove heat by actively blowing air and enhance the heat dissipation effect.
[0052] In some more preferred embodiments, such as Figure 1 shown, a heat conducting material layer 5 is also provided on the surface of the boss 41 of the heat conducting element for corresponding abutting connection with the electronic devices of the domain controller, so as to reduce the thermal resistance and further improve the heat conducting effect.
[0053] In some more specific embodiments, the heat conducting material layer 5 may include a heat conducting silicone grease layer. Those skilled in the art can select the thermal conductivity of the heat conducting silicone grease according to actual needs. Generally speaking, the higher the thermal conductivity of the heat conducting silicone grease, the more beneficial it is to heat dissipation.
[0054] Of course, in other more specific embodiments, the heat conducting material layer may also be heat conducting putty, heat conducting gel, heat conducting double-sided tape, heat conducting graphite sheet or similar heat conducting elements.
[0055] In another embodiment of the present utility model, a domain controller is further provided. The domain controller includes the housing structure as described above and a printed circuit board disposed within the housing structure, and electronic devices are provided on the printed circuit board.
[0056] In the present utility model, the printed circuit board (PCB board) of the domain controller may be a printed circuit board integrated with various electronic devices. The domain controller may be a vehicle domain controller, which is used for controlling the driving state and monitoring the state of the vehicle, including but not limited to in-vehicle mobile data center, hardware monitor (HMI) for realizing the function of human-machine interaction controller, in-vehicle infotainment (IVI) controller, body control module (BCM), vehicle control unit (VCU).
[0057] In the present utility model, the electronic devices on the printed circuit board may be a system on chip (SOC), or may also be other electronic components that generate heat and have power consumption, such as resistors, capacitors, inductors, diodes, and triodes.
[0058] Figure 6 Shows a schematic diagram of the split structure of the domain controller according to the present utility model in an embodiment.
[0059] As Figure 6 shown, in this embodiment, a first printed circuit board 61 and a second printed circuit board 62 are provided inside the housing structure, and electronic devices are integrated on both of them. Since there is a gap between the first printed circuit board 61 and the second printed circuit board 62, a metal shielding plate 7 is further provided between the two, which is installed in the non-metallic housing 1 by screws to form a part of the metal shielding cover 3. The second printed circuit board 62 is also installed in the metal shielding cover 3 by screws. The first printed circuit board 61 and the cover plate 2 are installed on the non-metallic housing 1 by connecting bolts 21.
[0060] In some preferred embodiments, in order to further improve the heat dissipation effect of the domain controller, a fan 8, such as an axial flow fan, can also be provided inside the housing structure. It cooperates with the heat dissipation channels formed by the heat dissipation fins and takes away the heat inside the housing structure in the form of external exhaust to reduce the temperature of the domain controller.
[0061] Thus, the present utility model combines a non-metallic housing, a metal shielding cover and a heat conducting element to replace the metal integral die-casting housing structure commonly used in the industry, thereby obtaining a lighter housing structure, the weight of which is only one-half of that of the integral die-casting housing, and the manufacturing cost is lower. In addition, in response to the problem of large heat dissipation requirements of the domain controller, the heat generated by the electronic devices is quickly and evenly absorbed and conducted through the heat conducting element, ensuring the stability of the performance of the domain controller.
[0062] The domain controller according to the present utility model can be used in a vehicle. For example, it can be applied to the automated driving of intelligent vehicles. Among them, intelligent vehicles can include electric vehicles or gasoline-driven vehicles that support unmanned driving, driver assistance (ADAS), intelligent driving, connected driving, intelligent network driving, and car sharing.
[0063] Therefore, in one embodiment, the present utility model also provides a vehicle having the domain controller as described above. Since the present utility model does not improve other components of the vehicle, other components of the vehicle will not be described in detail herein.
[0064] It should be noted that the prior art part in the protection scope of the utility model is not limited to the embodiments given in the utility model documents. All prior art that does not contradict the scheme of the utility model, including but not limited to prior patent documents, prior public publications, prior public uses, etc., can be included in the protection scope of the utility model.
[0065] In addition, the combination of the various technical features in this case is not limited to the combination described in the claims of this case or the combination described in the specific embodiments. All technical features recorded in this case can be freely combined or combined in any way unless there is a contradiction between them.
[0066] It should also be noted that the above-listed embodiments are only specific embodiments of the present invention. Obviously, the present invention is not limited to the above embodiments, and similar changes or modifications made therewith are directly derived or easily associated with the contents disclosed by those skilled in the art from the present invention, and should all fall within the protection scope of the present invention.
Claims
1. A housing structure for a domain controller, characterized in that, Comprising: A non-metallic housing (1); A metal shielding cover (3), which is arranged inside the non-metallic housing, and an accommodation space is formed inside the metal shielding cover; A heat-conducting element (4), which is arranged inside the accommodation space, the heat-conducting element has at least one boss (41) protruding from its body, and the at least one boss is used for respectively abutting and connecting with at least one electronic device of the domain controller; A cover plate (2), which is connected to the non-metallic housing.
2. The housing structure according to claim 1, characterized in that, A heat dissipation hole area (31) is provided on the metal shielding cover, and a hollowed-out part (11) is provided at the position corresponding to the heat dissipation hole area on the non-metallic housing.
3. The housing structure according to claim 1, wherein The non-metallic housing is configured as a plastic housing.
4. The housing structure according to claim 1, wherein, The heat-conducting element is an aluminum heat-conducting element or an aluminum alloy heat-conducting element.
5. The housing structure according to claim 1, characterized in that, The heat-conducting element has a plurality of upright heat dissipation fins (42), and heat dissipation channels (43) are formed between adjacent heat dissipation fins.
6. The housing structure according to claim 1, wherein A spring piece (32) is provided at the lower edge of the metal shielding cover.
7. The housing structure according to claim 6, wherein, The spring piece at least includes a first spring piece (321) and a second spring piece (322), the first spring piece abuts against the cover plate, and the second spring piece is used for abutting against the printed circuit board of the domain controller.
8. The housing structure according to claim 1, wherein A heat-conducting material layer (5) is provided on the surface of the boss for abutting and connecting with the electronic device of the domain controller.
9. The housing structure according to claim 8, wherein The heat-conducting material layer includes a heat-conducting silicone grease layer.
10. A domain controller, characterized in that, It includes the housing structure according to any one of claims 1-8 and a printed circuit board arranged inside the housing structure, and electronic devices are provided on the printed circuit board.
11. The domain controller according to claim 10, wherein It further includes a fan (8), which is arranged inside the housing structure.
12. A vehicle, characterized in that, It has a domain controller according to claim 10 or 11.