Controller

Abstract

The utility model relates to the technical field of automobile manufacturing, in particular to a controller. The controller comprises a circuit board and a shielding cover covering the circuit board; the circuit board comprises a plurality of strip-shaped through holes; the bottom surface of the shielding cover is provided with a plurality of twisting pins; the plurality of twisted feet are in one-to-one correspondence with the plurality of strip-shaped through holes; each twisting foot comprises a connecting part and a limiting part which are connected with each other; the length of the limiting part is larger than the width of the strip-shaped through hole, and the length of the connecting part is smaller than or equal to the width of the strip-shaped through hole; the connecting part and the limiting part can rotate after penetrating through the strip-shaped through hole, so that the limiting part is limited by the strip-shaped through hole. According to the controller, the problems that in the fixing mode of the shielding cover and the PCBA of an existing intelligent connection domain controller, the shielding cover and the PCBA are prone to falling off due to vibration in a clamp fixing mode, and the technology difficulty of a peripheral welding mode is high are solved.

Description

Technical Field

[0001] The present application relates to the field of automobile manufacturing technology, and in particular to a controller. Background Art

[0002] At present, the method of fixing the shielding cover of the intelligent domain controller used in automobiles to the PCBA is generally to first weld a clip on the PCBA and then fix the shielding cover with the clip. However, this fixing method not only increases the cost investment, but also the shielding cover is easily affected by vibration and falls off.

[0003] If another fixing method is used, that is, directly welding the edges of the shielding cover to the PCBA, although this fixing method prevents the shielding cover from being easily fallen off due to vibration, this fixing method not only increases the cost, but also tests the maturity of the process. Utility Model Content

[0004] The purpose of the present application is to provide a controller, thereby solving the problem that the existing fixing method of the shielding cover and PCBA of the intelligent domain controller is easily affected by vibration and falls off, while the peripheral welding method has high process difficulty.

[0005] According to the first aspect of the present application, a controller is provided, which includes a circuit board and a shielding cover arranged on the circuit board; the circuit board includes a plurality of strip-shaped through holes; a plurality of twist feet are arranged on the bottom surface of the shielding cover; the plurality of twist feet correspond one-to-one to the plurality of strip-shaped through holes; each of the twist feet includes a connecting portion and a limiting portion connected to each other; the length of the limiting portion is greater than the width of the strip-shaped through hole, and the length of the connecting portion is less than or equal to the width of the strip-shaped through hole; the connecting portion and the limiting portion can rotate after passing through the strip-shaped through hole, so that the limiting portion is limited by the strip-shaped through hole.

[0006] In any of the above technical solutions, further, the shielding cover includes a surrounding wall; and the plurality of twist pins are all arranged on the bottom surface of the surrounding wall.

[0007] In any of the above technical solutions, further, the surrounding walls are arranged in a rectangle; the surrounding walls include a first surrounding wall, a second surrounding wall, a third surrounding wall and a fourth surrounding wall connected to each other; the bottom surfaces of the first surrounding wall, the second surrounding wall, the third surrounding wall and the fourth surrounding wall are all provided with the twist feet; the length direction of the twist foot on the first surrounding wall is parallel to the length direction of the first surrounding wall; the length direction of the twist foot on the second surrounding wall is parallel to the length direction of the second surrounding wall; the length direction of the twist foot on the third surrounding wall is parallel to the length direction of the third surrounding wall; the length direction of the twist foot on the fourth surrounding wall is parallel to the length direction of the fourth surrounding wall.

[0008] In any of the above technical solutions, further, the limiting portion and the connecting portion are both sheets; the limiting portion can be bent to be welded to the bottom surface of the circuit board.

[0009] In any of the above technical solutions, further, the limiting portion and the connecting portion both form an L shape.

[0010] In any of the above technical solutions, further, a chip is arranged on the circuit board; a plurality of the strip-shaped through holes are arranged along the circumference of the chip; and the shielding cover is arranged on the chip.

[0011] In any of the above technical solutions, further, the circuit board also includes a heat dissipation through hole, and the heat dissipation through hole is located below the chip.

[0012] In any of the above technical solutions, further, the controller also includes a bottom cover and an upper cover; the circuit board is arranged between the bottom cover and the upper cover; the circuit board, the bottom cover and the upper cover are fixed by screws.

[0013] In any of the above technical solutions, further, a boss is provided on a side of the bottom cover facing the circuit board; and a heat dissipation adhesive layer is provided between the boss and the circuit board.

[0014] In any of the above technical solutions, further, the controller is a domain controller used in a car.

[0015] According to the controller of the present application, the controller includes a circuit board and a shielding cover arranged on the circuit board. The circuit board includes a plurality of bar-shaped through holes; the bottom surface of the shielding cover is provided with a plurality of twist pins, and the plurality of twist pins correspond to the plurality of bar-shaped through holes one by one; each twist pin includes a connecting portion and a limiting portion connected to each other, wherein the length of the limiting portion is greater than the width of the bar-shaped through hole, and the length of the connecting portion is less than or equal to the width of the bar-shaped through hole; the connecting portion and the limiting portion can rotate after passing through the bar-shaped through hole, so that the limiting portion is limited by the bar-shaped through hole.

[0016] According to the above technical features, the beneficial effects of this application are:

[0017] When installing the shielding cover of the present application, first insert the length direction of the connecting part against the length direction of the strip through hole, and then rotate the shielding cover (the length of the connecting part rotates in the strip through hole, and the rotation is less than 180°). At this time, the length direction of the connecting part is not opposite to / parallel to the length direction of the strip through hole, that is, the limiting part is limited by the strip through hole (the length of the limiting part is limited by the width of the strip through hole), thereby achieving the fixation of the shielding cover.

[0018] In summary, the shielding cover of the present application is fixed on the strip-shaped through-hole of the circuit board by twist pins. Compared with the prior art, the fixing method is stable and will not fall off due to vibration. The installation process is simple and the cost is low.

[0019] In order to make the above-mentioned objects, features and advantages of the present application more obvious and easy to understand, preferred embodiments are specifically cited below and described in detail with reference to the attached drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 A schematic diagram showing the overall exploded structure of a domain controller according to an embodiment of the present application is shown;

[0022] Figure 2 An overall cross-sectional view of a domain controller according to an embodiment of the present application is shown;

[0023] Figure 3 A schematic diagram showing the installation of a shielding cover and twist feet according to an embodiment of the present application;

[0024] Figure 4 Show Figure 3 A schematic diagram of the structure from another perspective.

[0025] Icon: 100 - circuit board; 200 - shielding cover; 201 - wall; 300 - twist foot; 301 - connecting part; 302 - limiting part; 400 - chip; 101 - strip through hole; 102 - first mounting hole; 500 - bottom cover; 501 - boss; 502 - second mounting hole. DETAILED DESCRIPTION

[0026] The following specific embodiments are provided to help the reader obtain a comprehensive understanding of the methods, devices and / or systems described herein. However, after understanding the disclosure of the present application, various changes, modifications and equivalents of the methods, devices and / or systems described herein will be apparent. For example, the order of operations described herein is merely an example, and is not limited to the order set forth herein, but in addition to the operations that must occur in a particular order, changes that will be apparent after understanding the disclosure of the present application may be made. In addition, in order to improve clarity and brevity, descriptions of features known in the art may be omitted.

[0027] The features described herein may be implemented in different forms and should not be interpreted as being limited to the examples described herein. Rather, the examples described herein have been provided only to illustrate some of the many possible ways of implementing the methods, devices and / or systems described herein that will be apparent after understanding the disclosure of the present application.

[0028] Throughout the specification, when an element (such as a layer, a region, or a substrate) is described as being “on”, “connected to”, “bound to”, “over”, or “covering” another element, it may be directly “on”, “connected to”, “bound to”, “over”, or “covering” another element, or one or more other elements may be present between them. In contrast, when an element is described as being “directly on”, “directly connected to”, “directly bound to”, “directly over”, or “directly covering” another element, there may be no other elements present between them.

[0029] As used herein, the term "and / or" includes any one of the associated listed items and any combination of any two or more items.

[0030] Although terms such as "first," "second," and "third" may be used herein to describe various members, components, regions, layers, or portions, these members, components, regions, layers, or portions are not limited by these terms. Rather, these terms are only used to distinguish one member, component, region, layer, or portion from another member, component, region, layer, or portion. Therefore, without departing from the teachings of the examples described herein, the first member, component, region, layer, or portion referred to may also be referred to as the second member, component, region, layer, or portion.

[0031] For ease of description, spatial relational terms such as "above", "upper", "below", and "lower" may be used herein to describe the relationship of one element to another element as shown in the accompanying drawings. Such spatial relational terms are intended to include different orientations of the device in use or operation in addition to the orientation depicted in the accompanying drawings. For example, if the device in the accompanying drawings is turned over, an element described as being "above" or "upper" relative to another element will subsequently be "below" or "lower" relative to the other element. Therefore, the term "above" includes both "above" and "below" orientations depending on the spatial orientation of the device. The device may also be positioned in other ways (e.g., rotated 90 degrees or in other orientations), and the spatial relational terms used herein will be interpreted accordingly.

[0032] The terms used herein are only used to describe various examples and are not used to limit the present disclosure. Unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. The terms "include", "comprise" and "have" list the stated features, quantities, operations, components, elements and / or their combinations that exist, but do not exclude the existence or addition of one or more other features, quantities, operations, components, elements and / or their combinations.

[0033] Variations in the shapes shown in the drawings may occur due to manufacturing techniques and / or tolerances. Therefore, the examples described herein are not limited to the specific shapes shown in the drawings but include variations in shapes that occur during manufacturing.

[0034] The features of the examples described herein may be combined in various ways that will be apparent after understanding the disclosure of the present application. In addition, although the examples described herein have various configurations, other configurations are possible as will be apparent after understanding the disclosure of the present application.

[0035] The first aspect of the present application provides a controller, thereby solving the problem that the existing fixing method of the shielding cover 200 and the PCBA of the intelligent domain controller is easily affected by vibration and falls off, while the peripheral welding method has high process difficulty.

[0036] The following will refer to Figures 1 to 4 The controller according to some embodiments of the present application is described in detail.

[0037] like Figure 1 As shown, the controller of the present application includes a circuit board 100 (PCBA) and a shielding cover 200 disposed on the circuit board 100. The circuit board 100 includes a plurality of bar-shaped through holes 101; a plurality of twist pins 300 are disposed on the bottom surface of the shielding cover 200, and the plurality of twist pins 300 correspond to the plurality of bar-shaped through holes 101 one by one; Figure 4 As shown, each twist foot 300 includes a connecting portion 301 and a limiting portion 302 connected to each other, wherein the length of the limiting portion 302 is greater than the width of the bar through hole 101, and the length of the connecting portion 301 is less than or equal to the width of the bar through hole 101; the connecting portion 301 and the limiting portion 302 can rotate after passing through the bar through hole 101, so that the limiting portion 302 is limited by the bar through hole 101.

[0038] According to the above technical features, the beneficial effects of this application are:

[0039] When installing the shielding cover 200 of the present application, first insert the length direction of the connecting part 301 against the length direction of the strip through hole 101, and then rotate the shielding cover 200 (the length of the connecting part 301 rotates in the strip through hole 101, and the rotation is less than 180°). At this time, the length direction of the connecting part 301 is not opposite to / parallel to the length direction of the strip through hole 101, that is, the limiting part 302 is limited by the strip through hole 101 (the length of the limiting part 302 is limited by the width of the strip through hole 101), thereby achieving the fixation of the shielding cover 200.

[0040] In summary, the shielding cover 200 of the present application is fixed on the strip-shaped through hole 101 of the circuit board 100 by the twist pin 300. Compared with the prior art, the fixing method is stable and will not fall off due to vibration. The installation process is simple and the cost is low.

[0041] In an embodiment of the present application, the controller may be an intelligent domain controller used in a car. The following description will be made taking the intelligent domain controller as an example, hereinafter referred to as the controller.

[0042] In the embodiments of the present application, optionally, Figure 4 As shown, the shielding cover 200 includes a surrounding wall 201, and a plurality of twist pins 300 are arranged on the bottom surface of the surrounding wall 201. In this way, it is convenient to cover the components of the circuit board 100 in the cavity inside the surrounding wall 201 of the shielding cover 200 to achieve the function of shielding electromagnetic.

[0043] Continue to see Figure 1 In an embodiment of the present application, a chip 400 (a high-power IC) is disposed on a circuit board 100 , a plurality of strip-shaped through holes 101 are disposed along the circumference of the chip 400 , and a shielding cover 200 is disposed on the chip 400 .

[0044] See also Figure 1 , Figure 3 and Figure 4 The surrounding wall 201 can be arranged in a rectangular shape, and the surrounding wall 201 includes a first surrounding wall, a second surrounding wall, a third surrounding wall and a fourth surrounding wall connected to each other. The bottom surfaces of the first surrounding wall, the second surrounding wall, the third surrounding wall and the fourth surrounding wall are all provided with a twist foot 300; the length direction of the twist foot 300 on the first surrounding wall is parallel to the length direction of the first surrounding wall; the length direction of the twist foot 300 on the second surrounding wall is parallel to the length direction of the second surrounding wall; the length direction of the twist foot 300 on the third surrounding wall is parallel to the length direction of the third surrounding wall; the length direction of the twist foot 300 on the fourth surrounding wall is parallel to the length direction of the fourth surrounding wall.

[0045] Continue to see Figure 1 The corresponding strip-shaped through hole 101 is also arranged along the direction of the twist foot 300. Preferably, the strip-shaped through hole 101 is a rectangular through hole.

[0046] In the embodiment of the present application, in order to further increase the stability of the fixation between the twist pin 300 and the circuit board 100 , the twist pin 300 can be welded to the circuit board 100 after being rotated.

[0047] Specifically, Figure 1 and Figure 3 As shown, the limiting portion 302 and the connecting portion 301 are both sheets, and the limiting portion 302 and the connecting portion 301 form an L shape.

[0048] After the twist foot 300 is inserted into the strip through hole 101 and the shielding cover 200 is rotated, the limiting portion 302 can be bent again so that the upper surface of the limiting portion 302 is welded to the bottom surface of the circuit board 100, and the number of welds can be at least three of the four.

[0049] In the embodiment of the present application, in order to further improve the heat dissipation of the chip 400 .

[0050] The circuit board 100 of the present application may further include a heat dissipation through hole, which is located below the chip 400 to dissipate heat from the chip 400 .

[0051] Furthermore, if Figure 1 As shown, the bottom cover 500 of the present application is provided with a boss 501 on the side facing the circuit board 100, and a heat dissipation adhesive layer is provided between the boss 501 and the circuit board 100. That is, heat dissipation adhesive / oil can be applied on the boss 501 of the metal bottom cover 500 to dissipate heat and cool down the IC that generates a large amount of heat, thereby achieving a great heat dissipation effect.

[0052] Furthermore, if Figure 1 and Figure 2 As shown, the controller of the present application further includes a bottom cover 500 and an upper cover (the upper cover is not shown in the figure). The circuit board 100 is arranged between the bottom cover 500 and the upper cover; the circuit board 100, the bottom cover 500 and the upper cover are fixed by screws.

[0053] As an example, Figure 1 As shown, a plurality of first mounting holes 102 are provided at the edge of the circuit board 100, and a plurality of second mounting holes 502 are correspondingly provided at the edge of the bottom cover 500. Each screw passes through the second mounting hole 502 and the first mounting hole 102 in sequence and is fixed on the upper cover.

[0054] It should be noted here that Figure 2 The twist foot 300 shown in FIG. 1 is a state before the twist foot is rotated and welded.

[0055] In summary, when installing the shielding cover 200 of the present application, first insert the length direction of the connecting portion 301 against the length direction of the strip through hole 101, and then rotate the shielding cover 200 (the length of the connecting portion 301 rotates in the strip through hole 101, and the rotation is less than 180°). At this time, the length direction of the connecting portion 301 is not opposite to / parallel to the length direction of the strip through hole 101, that is, the limiting portion 302 is limited by the strip through hole 101 (the length of the limiting portion 302 is limited by the width of the strip through hole 101), thereby achieving the fixing of the shielding cover 200. In order to further fix, the limiting portion 302 can be bent again, so that the upper surface of the limiting portion 302 is welded to the bottom surface of the circuit board 100, and the number of welds can be at least three of the four.

[0056] The effect is: the shielding cover 200 of the present application is fixed on the strip-shaped through hole 101 of the circuit board 100 by the twist pin 300. Compared with the prior art, the fixing method is stable and there will be no problem of falling off due to vibration. The installation process is simple and the cost is low.

[0057] On this basis, the shielding cover 200 fits tightly with the circuit board 100 and can meet the requirements of electromagnetic shielding.

[0058] On this basis, the heat dissipation through holes and the heat dissipation adhesive layer on the boss 501 of the metal bottom cover 500 can achieve the function of heat dissipation and temperature reduction.

[0059] Finally, it should be noted that the above-described embodiments are only specific implementation methods of the present application, which are used to illustrate the technical solutions of the present application rather than to limit them. The protection scope of the present application is not limited thereto. Although the present application has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that any technician familiar with this technical field can still modify the technical solutions recorded in the aforementioned embodiments within the technical scope disclosed in the present application, or make equivalent replacements for some of the technical features therein; and these modifications, changes or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application, and should all be covered by the protection scope of the present application.

Claims

1. A controller, characterized in that: The controller includes a circuit board and a shielding cover arranged on the circuit board; The circuit board comprises a plurality of strip-shaped through holes; The bottom surface of the shielding cover is provided with a plurality of twist feet; The plurality of twist feet correspond to the plurality of strip-shaped through holes one by one; Each of the twist feet comprises a connecting portion and a limiting portion connected to each other; The length of the limiting portion is greater than the width of the strip-shaped through hole, and the length of the connecting portion is less than or equal to the width of the strip-shaped through hole; The connecting portion and the limiting portion can rotate after passing through the strip-shaped through hole, so that the limiting portion is limited by the strip-shaped through hole.

2. The controller according to claim 1, characterized in that: The shielding cover comprises a surrounding wall; the plurality of twist pins are all arranged on the bottom surface of the surrounding wall.

3. The controller according to claim 2, characterized in that: The surrounding wall is arranged in a rectangular shape; The surrounding wall comprises a first surrounding wall, a second surrounding wall, a third surrounding wall and a fourth surrounding wall connected to each other; The bottom surfaces of the first surrounding wall, the second surrounding wall, the third surrounding wall and the fourth surrounding wall are all provided with the twist feet; The length direction of the twist foot on the first surrounding wall is parallel to the length direction of the first surrounding wall; The length direction of the twist foot on the second surrounding wall is parallel to the length direction of the second surrounding wall; The length direction of the twist foot on the third surrounding wall is parallel to the length direction of the third surrounding wall; The length direction of the twist foot on the fourth surrounding wall is parallel to the length direction of the fourth surrounding wall.

4. The controller according to claim 1, characterized in that: The limiting part and the connecting part are both sheets; The limiting portion can be bent to be welded to the bottom surface of the circuit board.

5. The controller according to claim 4, characterized in that: The limiting portion and the connecting portion both form an L-shape.

6. The controller according to claim 1, characterized in that: A chip is arranged on the circuit board; A plurality of the strip-shaped through holes are arranged along the circumference of the chip; The shielding cover is disposed on the chip.

7. The controller according to claim 6, characterized in that: The circuit board also includes a heat dissipation through hole, and the heat dissipation through hole is located below the chip.

8. The controller according to claim 1, characterized in that: The controller also includes a bottom cover and an upper cover; The circuit board is arranged between the bottom cover and the upper cover; The circuit board, the bottom cover and the upper cover are fixed by screws.

9. The controller according to claim 8, characterized in that: A boss is provided on one side of the bottom cover facing the circuit board; A heat dissipation adhesive layer is arranged between the boss and the circuit board.

10. The controller according to any one of claims 1 to 9, characterized in that: The controller is a domain controller used in a car.

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