A controller and a vehicle

Abstract

The utility model discloses a kind of controller and car, controller includes shell and the electromagnetic shielding device for the electromagnetic shielding of component of circuit board, the electromagnetic shielding device includes multiple and the metal connecting piece connected with the shell, multiple the metal connecting piece is around the four around component And the gap of adjacent two metal connecting pieces is adjustable.The controller of the utility model ensures electromagnetic shielding effect while greatly shortening research and development cycle, improves research and development efficiency, reduces enterprise product development cost.

Description

Technical Field

[0001] This utility model relates to the field of vehicle technology, specifically a controller and an automobile. Background Technology

[0002] In the field of autonomous vehicles, as chip computing power continues to improve, the chip's own packaging and the entire interconnection module can no longer completely shield the radiation it emits. Therefore, electronic devices need to use metal materials to isolate the internal and external "fields" of the product casing from interfering radiation sources, thereby suppressing the propagation of electromagnetic noise in space. As the frequency of high-speed signals on the circuit board inside the controller increases, the wavelength of high-frequency signals becomes shorter, increasing the probability of them passing through gaps in the casing, making the controller prone to resonance.

[0003] To achieve electromagnetic shielding, controllers already employ electromagnetic shielding mechanisms, including a metal housing and a metal cover. The metal housing contains a chamber, and the metal cover is connected to the metal housing and closes the chamber. The metal housing has a first groove and a first protrusion, which surround the chamber and are spaced apart. The metal cover has a second protrusion and a second groove, with the second protrusion inserted into the first groove and the first protrusion inserted into the second groove. The first and second protrusions form an interlaced structure to reduce electromagnetic wave leakage. However, this electromagnetic shielding mechanism presents significant challenges for R&D, process, production, and quality personnel. It requires highly accurate tolerance analysis, high-precision production equipment, highly automated production lines, and high-precision production testing equipment to ensure consistency between production and design. This consumes a significant amount of time, effort, and cost. Furthermore, in the early R&D and verification phase, continuous prototyping and testing according to design requirements are necessary, greatly extending the R&D cycle. Utility Model Content

[0004] To solve at least one of the above-mentioned technical problems, this utility model provides a controller and a car that ensures electromagnetic shielding while greatly shortening the research and development cycle, improving research and development efficiency, and reducing the product development cost for enterprises.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A controller includes a housing and an electromagnetic shielding device for electromagnetically shielding components on a circuit board. The electromagnetic shielding device includes a plurality of metal connectors connected to the housing, wherein the plurality of metal connectors are arranged around the components and the gap between adjacent metal connectors is adjustable.

[0007] In a preferred embodiment, the housing includes an upper housing and a lower housing, the upper housing having a first groove and / or the lower housing having a second groove, and a plurality of the metal connectors are provided in the first groove and / or the second groove.

[0008] In a preferred embodiment, the upper housing has a first groove, the lower housing has a second groove, and a plurality of the metal connectors are provided in the first groove and the second groove.

[0009] In a preferred embodiment, the metal connector has a first end that contacts the housing and a second end that contacts the circuit board. The first end is in direct contact with the housing or is connected to the housing via a conductive component, and the second end abuts against the circuit board.

[0010] In a preferred embodiment, the circuit board has a grounding region, and the second end of the metal connector is electrically connected to the grounding region.

[0011] In a preferred embodiment, the first end is connected to the housing via the conductive component, the conductive component comprising an elastic element or conductive foam.

[0012] In a preferred embodiment, each of the metal connectors has a solid portion and a hollow portion; the plurality of metal connectors are connected by a plug-in, the plug-in being inserted into the hollow portion of two adjacent metal connectors.

[0013] In a preferred embodiment, the electromagnetic shielding device further includes a fixing member, the housing is provided with a first connecting hole, the second end of the metal connector is provided with a second connecting hole, and the fixing member passes through the first connecting hole and the second connecting hole to fix the metal connector.

[0014] In a preferred embodiment, the number of fasteners is multiple.

[0015] This utility model also adopts the following technical solution:

[0016] An automobile includes the aforementioned controller.

[0017] The present invention adopts the above solution and has the following advantages compared with the prior art:

[0018] The controller of this utility model has multiple metal connectors surrounding the components to provide electromagnetic shielding for the components on the circuit board. In application, the gap between the metal connectors can be adjusted according to the requirements. For example, if it is found that the specified electromagnetic shielding effect is not achieved, the gap between two adjacent metal connectors can be directly reduced in the early research and development verification stage, which greatly shortens the research and development cycle, improves research and development efficiency, and reduces the product development cost of enterprises. Attached Figure Description

[0019] To more clearly illustrate the technical solution of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a cross-sectional view of the controller according to an embodiment of the present utility model;

[0021] Figure 2 A side view of the controller according to an embodiment of the present utility model;

[0022] Figure 3 A schematic diagram showing multiple metal connectors placed in the second groove of the lower housing;

[0023] Figure 4 This is a schematic diagram showing the metal connector according to an embodiment of the present invention connected to the housing via a spring;

[0024] Figure 5 This is a top view of a circuit board according to an embodiment of the present invention;

[0025] Figure 6 This is a cross-sectional view of the connector and metal connector after they are connected according to an embodiment of the present invention.

[0026] in,

[0027] 100. Circuit board; 101. Components; 102. Grounding area;

[0028] 1. Housing; 11. Upper housing; 111. First groove; 12. Lower housing; 121. Second groove; 13. First connecting hole;

[0029] 2. Metal connector; 21. First end; 211. Second connecting hole; 22. Second end; 23. Solid part; 24. Hollow part;

[0030] 3. Flexible components; 4. Connecting components; 5. Fixing components. Detailed Implementation

[0031] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art. It should be noted that the description of these embodiments is for the purpose of aiding understanding the present invention, but does not constitute a limitation thereof. Furthermore, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0032] This embodiment provides a vehicle, including a controller, specifically a controller for an autonomous vehicle. The controller includes a housing 1 and an electromagnetic shielding device for electromagnetically shielding the components 101 of a circuit board 100.

[0033] Since most controllers use shielding materials for EMC structural shielding, such as conductive foam, SMT chip foam, conductive adhesive, etc., to fill the gaps between the upper and lower shells to reduce leakage, although it can play a certain role in electromagnetic protection, its reliability is poor for automotive-grade products. The electromagnetic shielding device in this embodiment mainly uses multiple metal connectors 2 for electromagnetic protection.

[0034] Furthermore, referring to Figures 1 to 5 As shown, the electromagnetic shielding device in this embodiment includes metal connectors 2, plug-in connectors 4, and fixing members 5. Furthermore, there are multiple metal connectors 2, each connected to the housing 1; there are multiple plug-in connectors 4, with adjacent metal connectors 2 connected by a plug-in connector 4. Specifically, each metal connector 2 has a solid portion 23 and a hollow portion 24, more specifically, a solid portion 23 in the middle and hollow portions 24 at both ends. The plug-in connector 4 is inserted into the hollow portions 24 of two adjacent metal connectors 2 to connect the two adjacent metal connectors 2 together.

[0035] Reference Figure 1 and Figure 2 As shown, housing 1 includes an upper housing 11 and a lower housing 12. Both upper housing 11 and lower housing 12 are made of metal. In other embodiments, the housing material of upper housing 11 and lower housing 12 can also be replaced with plastic parts with a metal spray coating for installation. The edges of upper housing 11, lower housing 12, and circuit board 100 have multiple screw holes. Multiple screws pass through the screw holes on upper housing 11 and lower housing 12 to secure them. More specifically, four screws can be used, with screw holes at the four corners of each of the upper housing 11, circuit board 100, and lower housing 12. The four screws pass through the four screw holes of each of the upper housing 11, circuit board 100, and lower housing 12, making them tightly and securely connected as one unit. In other embodiments, upper housing 11, lower housing 12, and circuit board 100 can also be fixedly connected by snap-fit ​​or riveting.

[0036] Furthermore, the upper housing 11 has a first groove 111 and / or the lower housing 12 has a second groove 121. Multiple metal connectors 2 are provided within the first groove 111 and / or the second groove 121. Specifically, in this embodiment, the upper housing 11 has a first groove 111, and the lower housing 12 has a second groove 121. Multiple metal connectors 2 are provided within the first groove 111 and the second groove 121. In other embodiments, if the components are mostly distributed on the upper surface of the circuit board, the first groove 111 can be provided only on the upper housing 11, and the metal connectors 2 can be provided within the first groove 111; if the components are mostly distributed on the lower surface of the circuit board, the second groove 121 can be provided only on the lower housing 12, and the metal connectors 2 can be provided within the second groove 121. It should be noted that the shapes of the metal connectors 2, the first groove 111, and the second groove 121 are not limited to the shapes provided in this embodiment and can take various forms.

[0037] The metal connector 2 is detachably connected to the housing 1. During assembly, the metal connector 2 and the plug 4 are assembled together first, and then the assembled metal connector 2 is placed into the first groove 111 or the second groove 121. Specifically, the metal connector 2 can be directly inserted into the first groove 111 or the second groove 121 in the vertical direction. It is suitable for housings of various shapes and is relatively easy to operate.

[0038] The circuit board 100 is located between the upper housing 11 and the lower housing 12. Multiple metal connectors 2 are arranged around the components 101 of the circuit board 100, and the gap between adjacent metal connectors 2 is adjustable. The gap between two adjacent metal connectors 2 is 0-3.5 mm, and the size of the gap depends on the frequency range of the electromagnetic shielding. In actual operation, the gap between two adjacent metal connectors 2 can be adjusted by adjusting the length and / or width of the connector 4. The connector 4 is available in various sizes according to standards; for example, when a smaller gap is required, a shorter connector 4 can be used. In another embodiment, refer to... Figure 6 As shown, an elastic element 3, specifically a spring, is installed inside the cavity of the connector 4. The spring connects the connector 4 and the metal connector 2. If it is necessary to adjust the gap between the metal connectors 2, the metal connectors 2 can be pushed directly. At this time, the spring is compressed, and the gap between two adjacent metal connectors 2 becomes smaller. Then, the metal connectors 2 are locked in place by the fixing element 5. That is, in the early stage of research and development verification, the gap between two adjacent metal connectors can be directly reduced, which greatly shortens the research and development cycle, improves research and development efficiency, and reduces the product development cost of enterprises.

[0039] Reference Figure 4As shown, the metal connector 2 has a first end 21 that contacts the housing 1 and a second end 22 that contacts the circuit board 100. The first end 21 is directly connected to the housing 1 or electrically connected to the housing 1 through a conductive component. The second end 22 abuts against the circuit board 100. Specifically, in this embodiment, the first end 21 is rectangular in shape, and the second end 22 is similarly circular in shape. The first end 21 and the second end 22 are integrally formed. The first end 21 is electrically connected to the housing 1 through a conductive component. The conductive component can be an elastic element 3 or conductive foam. Specifically, in this embodiment, the conductive component is an elastic element 3. More specifically, the elastic element 3 is a spring. One end of the spring is welded to the housing 1, and the other end is welded to the metal connector 2. The spring not only serves as electromagnetic shielding but also as grounding.

[0040] Combination Figure 2 and Figure 5 As shown, the circuit board 100 has a grounding area 102, which is ring-shaped. The wiring area 102 is distributed around the periphery of the circuit board. The grounding area 102 can be determined according to the peripheral shape of the electronic components on the circuit board 240, including but not limited to irregular structures. The bottom end of the second end 22 of the metal connector 2 is electrically connected to the grounding area 102.

[0041] Reference Figure 2 As shown, the housing 1 has a first connecting hole 13, and the second end 22 of the metal connector 2 has a second connecting hole 211. Both the first connecting hole 13 and the second connecting hole 211 are through holes. The fixing member 5 passes directly through the first connecting hole 13 and the second connecting hole 211 to fix the metal connector 2, realizing a self-locking function and preventing the metal connector 2 from shifting in the vertical direction. The fixing member 5 is specifically a flat key. In other embodiments, in order to fix the metal connector 2 and the housing 1, a screw hole can be made in the middle of the fixing member 5, and the second connecting hole of the metal connector 2 is a blind hole. Screws are used to pass through the fixing member 5, the first connecting hole, and the second connecting hole to fix the housing 1 and the metal connector 2. However, in this case, the number of fixing members used will be doubled.

[0042] Furthermore, there are multiple fixing parts 5. The fixing blocks 5 eliminate the need for limiting treatment of the first groove 111 and the second groove 121, and also ensure that the housing 1 and the metal connector 2 are not at risk of falling during assembly. In addition, this method is only used for testing. After the shielding scheme is confirmed, the metal connector 2, the plug-in part 2 and the housing 1 can be structurally processed into a single piece, and the fixing blocks 5 will no longer be needed.

[0043] In this embodiment, during the assembly of the electromagnetic shielding device, the plug 4 is first inserted into the metal connector 2 to form a whole with the plug 4 and the metal connector 2. Then, the assembled metal connector 2 is placed from top to bottom into the first groove 111 and the second groove 121 of the housing 1. Then, multiple fasteners 5 are used to fix the housing 1 and the metal connector 2 together. Next, the second end 22 of the metal connector 2 is abutted against the grounding area 102 of the circuit board 100. Finally, the upper housing 11, the circuit board 100 and the lower housing 12 are locked together.

[0044] The electromagnetic shielding device of this embodiment has at least the following advantages: (1) It is simple and convenient to operate, and the shielding scheme can be quickly adjusted during the EMC testing phase, saving the R&D cycle and development cost, and further reducing the number of mold modifications; (2) It effectively adjusts the gap between the upper shell 11 and the lower shell 12, suppresses the occurrence of resonance, and also reduces the requirements for the surface structure processing accuracy of the shell, ensuring a good connection between the shell and the circuit board; (3) It avoids the use of foam for electromagnetic shielding, improving reliability; (4) Multiple metal connectors 2 are wrapped around the circuit board, which can provide heat dissipation while making the circuit board uniformly stressed and enhancing the vibration resistance.

[0045] As indicated in this specification and claims, the terms "comprising" and "including" only indicate the inclusion of expressly identified steps and elements, and these steps and elements do not constitute an exclusive list; the method or apparatus may also include other steps or elements. The term "and / or" as used herein includes any combination of one or more of the associated listed items.

[0046] It should be noted that, unless otherwise specified, when a feature is referred to as "fixed" or "connected" to another feature, it can be directly fixed or connected to the other feature, or it can be indirectly fixed or connected to the other feature. Furthermore, the descriptions of "upper," "lower," "left," and "right" used in this utility model are only relative to the relative positional relationships of the various components of this utility model in the accompanying drawings.

[0047] The above embodiments are only for illustrating the technical concept and features of this utility model, and are preferred embodiments. Their purpose is to enable those skilled in the art to understand the content of this utility model and implement it accordingly, and should not be construed as limiting the protection scope of this utility model. All equivalent transformations or modifications made based on the principles of this utility model should be covered within the protection scope of this utility model.

Claims

1. A controller comprising a housing and an electromagnetic shielding device for electromagnetically shielding components of a circuit board, characterized in that, The electromagnetic shielding device includes multiple metal connectors connected to the housing, and the multiple metal connectors are arranged around the components and the gap between two adjacent metal connectors is adjustable.

2. The controller according to claim 1, characterized in that, The housing includes an upper housing and a lower housing, the upper housing having a first groove and / or the lower housing having a second groove, and the first groove and / or the second groove having a plurality of the metal connectors.

3. The controller of claim 2, wherein, The upper housing has a first groove, and the lower housing has a second groove. The first groove and the second groove are provided with a plurality of metal connectors.

4. The controller of claim 1, wherein, The metal connector has a first end that contacts the housing and a second end that contacts the circuit board. The first end is in direct contact with the housing or is connected to the housing through a conductive component, and the second end abuts against the circuit board.

5. The controller of claim 4, wherein, The circuit board has a grounding area, and the second end of the metal connector is electrically connected to the grounding area.

6. The controller of claim 4, wherein, The first end is connected to the housing via the conductive component, which includes an elastic element or conductive foam.

7. The controller of claim 4, wherein, Each of the metal connectors has a solid portion and a hollow portion; the plurality of metal connectors are connected by a plug-in, the plug-in being inserted into the hollow portion of two adjacent metal connectors.

8. The controller of claim 7, wherein, The electromagnetic shielding device further includes a fixing member. The housing is provided with a first connecting hole, and the second end of the metal connector is provided with a second connecting hole. The fixing member passes through the first connecting hole and the second connecting hole to fix the metal connector.

9. The controller according to claim 8, characterized in that, The number of fasteners is multiple.

10. An automobile characterized by comprising: Includes the controller as described in any one of claims 1 to 9.

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