Controller shell and controller

Abstract

The utility model belongs to the technical field of automobile controllers, and discloses a controller shell and a controller, the controller shell is used for protecting a circuit board in the controller, the circuit board is provided with a plurality of communication terminals, the controller shell is correspondingly provided with openings for placing the communication terminals, the controller comprises an upper shell, a lower shell and a current isolation piece, the circuit board is placed in a space formed by buckling the upper shell and the lower shell, the current isolation piece is detachably connected to the inner wall, facing the circuit board, of the upper shell, is in a plate shape and is vertically connected to the upper shell and the circuit board, and the current isolation piece is located between an electronic device on the circuit board and a communication terminal connecting hole. The current isolation piece comprises a plate-shaped shell assembly and conductive foam, a containing groove is formed in the plate-shaped shell assembly, the conductive foam can be contained in the containing groove, and the face, provided with the conductive foam, of the current isolation piece is attached to the circuit board. The controller shell improves the overall electromagnetic compatibility of a controller, and is low in manufacturing cost and high in universality.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile controllers, in particular to a controller housing and a controller. Background Art

[0002] With the use of new energy vehicles, in order to improve the intelligence level of new energy vehicles, new energy vehicles have more and more functions and are highly integrated. Therefore, more and more information needs to be processed by the controller, which makes the internal circuit design of the controller complicated and the electromagnetic compatibility of the controller worse. The electronic devices inside the controller are easily interfered by the electromagnetic fields of other external components, which affects the performance of the controller and even affects the use of electronic products inside the new energy vehicle.

[0003] In order to solve the problem of electromagnetic interference in the controller, most existing controllers will weld metal springs on the controller housing or the circuit board inside the controller, and connect the circuit board to the controller housing through the springs to achieve the effect of shielding the electromagnetic interference of other external components. However, this solution has poor shielding effect on the electromagnetic interference of other external components, and is costly, and cannot enable the controller to achieve the ideal electromagnetic compatibility effect. At the same time, the springs can only be welded at a fixed position on the controller housing. If the circuit board needs to be re-arranged, the area occupied by the communication terminal connection hole on the circuit board will increase. Since the position of the spring on the controller housing cannot be changed, only a new matching controller housing can be used, and the versatility of the controller housing is reduced, resulting in the problem of waste of controller housing use.

[0004] Therefore, there is an urgent need for a controller housing and a controller to solve the above technical problems. Utility Model Content

[0005] The first purpose of the utility model is to provide a controller housing, which can improve the overall electromagnetic compatibility of the controller so that the electromagnetic compatibility of the controller meets the daily use requirements, has low manufacturing cost, can reduce the production cost of the controller, and has strong versatility and can match circuit boards with different layouts.

[0006] To achieve this purpose, the utility model adopts the following technical solutions:

[0007] A controller housing is used to protect a circuit board inside the controller, wherein the circuit board is provided with a plurality of communication terminals, and the controller housing is provided with openings for placing the communication terminals. The controller housing comprises: an upper shell, a lower shell and a current isolating member, wherein the circuit board is placed in a space where the upper shell and the lower shell are interlocked with each other, and the current isolating member can be removably connected to the inner surface of the upper shell facing the circuit board, the current isolating member is plate-shaped and vertically connected between the upper shell and the circuit board, and the current isolating member is located between the electronic device on the circuit board and the connection hole of the communication terminal, and the current isolating member comprises a plate-shaped shell component and a conductive foam, and a receiving groove is provided inside the plate-shaped shell component, and the shape of the conductive foam is consistent with the shape of the receiving groove, and the conductive foam is accommodated in the receiving groove, and the current isolating member is provided with a side of the conductive foam that fits the circuit board.

[0008] As an optimal technical solution for the controller housing, the plate-like housing assembly includes a plate-like housing and a support plate, the height of the support plate is smaller than the height of the plate-like housing, and after the support plate is placed inside the plate-like housing, the remaining space of the plate-like housing is the accommodating groove.

[0009] As a preferred technical solution for the controller housing, the plate-like shell assembly also includes a retaining rib, which is fitted onto the outer wall of the plate-like shell. The height of the retaining rib is greater than the height of the outer wall of the plate-like shell. A plurality of retaining ribs are provided, and the plurality of retaining ribs are spaced apart.

[0010] As a preferred technical solution for the controller housing, the plate-shaped housing and the retaining ribs are an integrated structure.

[0011] As a preferred technical solution for the controller housing, an upper opening is provided at the edge of the upper shell, and a lower opening is correspondingly provided at the opposite edge of the lower shell, and the upper opening and the lower opening are matched with each other to form the opening.

[0012] As a preferred technical solution for the controller housing, the upper shell includes a plurality of heat dissipation fins, and the plurality of heat dissipation fins are arranged on the outer surface of the upper shell.

[0013] As a preferred technical solution of the controller housing, a plurality of first thermal conductive pads are provided on a side of the upper housing facing the circuit board, and the plurality of first thermal conductive pads are in contact with the electronic components on the front side of the circuit board;

[0014] And / or, a plurality of second thermal conductive pads are provided on a side of the lower shell facing the back side of the circuit board, and the plurality of second thermal conductive pads are in contact with the electronic components on the back side of the circuit board.

[0015] As a preferred technical solution for the controller housing, continuous ridges are provided around the interior of the lower housing, and the inner side surface of the upper housing fits with the outer wall of the ridges.

[0016] As a preferred technical solution for the controller housing, the lower shell includes a plurality of protrusions, the plurality of protrusions are arranged on the outer wall of the lower shell, and each of the protrusions is provided with a positioning hole.

[0017] The second object of the present invention is to provide a controller, comprising a controller housing as described in any of the above schemes.

[0018] To achieve this purpose, the utility model adopts the following technical solutions:

[0019] A controller comprises the controller housing described in any one of the above items, the controller further comprising a circuit board and a communication terminal, the controller housing is provided with an opening, the circuit board is placed in the internal space of the controller housing, and the communication terminal is mounted at the opening.

[0020] The beneficial effects of the utility model are:

[0021] The controller housing provided by the present invention isolates the electronic device area on the circuit board from the area of ​​the communication terminal connection hole through the current isolation piece, which can prevent the weak current generated by the components connected to the controller from flowing into the electronic components on the circuit board through the communication terminal and affecting the performance of the electronic components inside the controller, thereby improving the controller's own ability to resist electromagnetic interference; at the same time, since the current isolation piece can be detachably connected to the inner wall of the upper shell facing the circuit board, when it is necessary to adjust the layout of the circuit board so that the position of the communication terminal connection hole on the circuit board changes, it is only necessary to adjust the placement position of the current isolation piece on the upper shell to ensure that the current isolation piece is placed between the electronic components on the circuit board and the communication terminal connection hole, thereby blocking the weak current of external components, and allowing the controller housing to adapt to circuit boards of various layouts, thereby improving the flow of the controller housing. The utility model can reduce the waste of the controller shell; specifically, the current isolating member includes a plate-shaped shell component and a conductive foam, and a receiving groove is arranged inside the plate-shaped shell component. The shape of the conductive foam is consistent with the shape of the receiving groove and can be accommodated inside the receiving groove, wherein the current isolating member is provided with a side of the conductive foam that fits the circuit board. The conductive foam can effectively block the external weak current from entering the electrical device area on the circuit board. Compared with the spring clips in the prior art, the conductive foam has a lower price and a stronger shielding effect, which can reduce the cost of the control shell; at the same time, the conductive foam is placed in the receiving groove, which can prevent the conductive foam from deformation and further improve the controller's own anti-electromagnetic interference ability; at the same time, since the current isolating member is connected between the controller shell and the circuit board, the overall pressure resistance of the controller can be improved, and the overall structure of the controller is more stable, thereby extending the service life of the controller.

[0022] The controller provided by the utility model has good electromagnetic compatibility and low manufacturing cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is an exploded diagram of the controller provided by the utility model;

[0024] Figure 2 It is a structural schematic diagram of the controller housing provided by the utility model;

[0025] Figure 3 It is a schematic diagram of the upper shell structure of the controller housing provided by the utility model;

[0026] Figure 4 It is a schematic diagram of the lower shell structure of the controller shell provided by the utility model;

[0027] Figure 5 The utility model is a schematic diagram of the structure of the current isolating member of the controller housing.

[0028] In the figure:

[0029] 100. Circuit board;

[0030] 1. upper shell; 11. upper opening; 12. heat sink fins; 13. first thermal pad;

[0031] 2. lower shell; 21. lower half opening; 22. second thermal conductive pad; 23. protrusion; 231. positioning hole;

[0032] 3. Current isolating member; 31. Plate-shaped housing component; 311. Plate-shaped housing; 312. Retaining rib; 32. Conductive foam;

[0033] 4. Speak. DETAILED DESCRIPTION

[0034] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only the parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0035] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0036] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0037] In the description of this embodiment, the terms "upper", "lower", "right", etc., are based on the directions or positions shown in the drawings, and are only for the convenience of description and simplified operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0038] Embodiment 1

[0039] This embodiment provides a controller housing, which can solve the problems in the prior art that the overall electromagnetic compatibility of the controller is poor, the manufacturing cost of the controller housing is high, and the compatibility is poor.

[0040] like Figures 1 to 5As shown, this embodiment provides a controller housing for protecting a circuit board 100 inside the controller, wherein a plurality of communication terminals are provided on the circuit board 100, and an opening 4 for placing the communication terminals is correspondingly provided on the controller housing. The controller comprises an upper shell 1, a lower shell 2 and a current isolating member 3, wherein the circuit board 100 is placed in a space where the upper shell 1 and the lower shell 2 are interlocked with each other, and the current isolating member 3 can be detachably connected to the inner wall of the upper shell 1 facing the circuit board 100, and the current isolating member 3 is plate-shaped and vertically connected to the upper shell 1 and the circuit board 100, and the current isolating member 3 is located between the electronic device on the circuit board 100 and the communication terminal connection hole, and the electronic device area on the circuit board 100 is isolated from the area of ​​the communication terminal connection hole by the current isolating member 3, so as to prevent the weak current generated by the external components connected to the controller from flowing into the electronic device on the circuit board 100 through the communication terminal, thereby affecting the performance of the electronic device inside the controller, thereby improving the anti-electromagnetic interference capability of the controller itself. At the same time, since the current isolation component 3 can be detachably connected to the inner wall of the upper shell 1 facing the circuit board 100, when the layout of the circuit board 100 needs to be adjusted, so that the position of the communication terminal connection hole on the circuit board 100 changes, it is only necessary to adjust the placement position of the current isolation component 3 on the upper shell 1 to ensure that the current isolation component 3 is placed between the electronic components of the circuit board 100 and the communication terminal connection hole, so as to block the weak current of external components, and enable the controller housing to adapt to circuit boards 100 with various layouts, thereby improving the versatility of the controller housing and reducing the waste of the controller housing. Specifically, the current isolating member 3 includes a plate-shaped shell component 31 and a conductive foam 32. A receiving groove is provided inside the plate-shaped shell component 31. The shape of the conductive foam 32 is consistent with the shape of the receiving groove and can be accommodated inside the receiving groove. The current isolating member 3 is provided with a side of the conductive foam 32 that is arranged in contact with the circuit board 100. The conductive foam 32 can effectively block external weak current from entering the electronic device area on the circuit board 100. Compared with the shrapnel of the prior art, the conductive foam 32 has a lower price and a stronger shielding effect, which can reduce the cost of the control housing. At the same time, the conductive foam 32 is placed in the receiving groove to prevent the conductive foam 32 from deforming, which can further improve the controller's own anti-electromagnetic interference ability. At the same time, since the current isolating member 3 is connected between the controller housing and the circuit board 100, it can improve the overall pressure resistance of the controller, make the overall structure of the controller more stable, and extend the service life of the controller.

[0041] Exemplarily, the current isolating member 3 can be detachably connected to the upper shell 1 by gluing, or by magnetic attraction. The specific connection scheme can be selected according to the structure and cost requirements of the controller, and there is no specific limitation.

[0042] For example, Figure 5As shown in the figure, the plate-like shell assembly 31 includes a plate-like shell 311 and a support plate. The height of the support plate is smaller than the height of the plate-like shell 311. After the support plate is placed inside the plate-like shell 311, the remaining space of the plate-like shell 311 is the accommodation space. In actual production, different batches of conductive foam 32 may have inconsistent thicknesses. In this case, as long as the thickness of the support plate is adjusted according to the thickness of the conductive foam 32, the conductive foam 32 can be well assembled, thereby improving the flexibility of the overall structure of the current isolation component 3.

[0043] Preferably, the plate-like shell component 31 also includes a retaining rib 312, which is fitted on the outer wall of the plate-like shell 311, and the height of the retaining rib 312 is greater than the height of the outer wall of the plate-like shell 311. There are multiple retaining ribs 312, and multiple retaining ribs 312 are arranged at intervals. The setting of the retaining rib 312 can further block the conductive foam 32, further reduce the deformation degree of the conductive foam 32, ensure the ability of the current isolation part 3 to block external weak current, and improve the anti-electromagnetic interference ability of the controller itself. In order to reduce the processing and assembly processes of the plate-like shell component 31 and improve its production efficiency, this embodiment preferably sets the plate-like shell 311 and the retaining rib 312 as an integrated structure. Of course, the two can also be designed as a separate structure, as long as the role of the retaining rib 312 can be reflected and the deformation of the conductive foam 32 can be further reduced, and there is no specific limitation.

[0044] Exemplarily, an upper opening 11 is provided at the edge of the upper shell 1, and a lower opening 21 is correspondingly provided at the opposite edge of the lower shell 2. When the upper shell 1 and the lower shell 2 are buckled together, the upper opening 11 and the lower opening 21 are matched with each other, and an opening 4 for placing the communication terminal of the circuit board 100 can be formed. According to the number or layout of the communication terminals of the circuit board 100, the upper opening 11 can be provided at one or more edges of the upper shell 1, and the lower opening 21 can be correspondingly provided at one or more edges of the opposite edge of the lower shell 2. No limitation is made here.

[0045] As preferably, Figure 2 As shown in , the upper shell 1 also includes a plurality of heat dissipation fins 12, and the plurality of heat dissipation fins 12 are arranged on the outer surface of the upper shell 1. The arrangement of the heat dissipation fins 12 can improve the overall heat dissipation capacity of the controller, thereby improving the performance of the controller.

[0046] Preferably, a plurality of first thermally conductive gaskets 13 are arranged on the side of the upper shell 1 facing the circuit board 100, and the plurality of first thermally conductive gaskets 13 are in contact with the electronic components on the front side of the circuit board 100. The arrangement of the first thermally conductive gaskets 13 can dissipate heat for the electronic components on the circuit board 100 in a targeted manner, so as to ensure the performance of the electronic components on the circuit board 100 during operation and in a high temperature environment, so as to further ensure the performance of the controller. Similarly, a plurality of second thermally conductive gaskets 22 may be optionally provided on the side of the lower shell 2 facing the back side of the circuit board 100, and the plurality of second thermally conductive gaskets 22 may be bonded to the electronic devices on the back side of the circuit board 100. Since the circuit board 100 is now a double-sided board, electronic devices may be welded on both the front and back sides thereof. To make the layout of the circuit board 100 beautiful, the chip resistors, chip capacitors and chips on the circuit board 100 may be mostly placed on the back side of the circuit board 100, and the plug-in electronic devices on the circuit board 100, such as transformers, fuses and other components, may be mostly placed on the front side of the circuit board 100, so as to distinguish different forms of electronic devices. The provision of the first thermally conductive gasket 13 and the second thermally conductive gasket 22 may have a heat dissipation effect on the electronic devices on the front and back sides of the circuit board 100, thereby further ensuring the performance of the controller during operation. Taking cost issues into consideration, the multiple first thermally conductive gaskets 13 and the multiple second thermally conductive gaskets 22 in this embodiment are all small in size. Of course, you can also choose to stick the entire first thermally conductive gasket 13 on the inner surface of the upper shell 1, and stick the entire second thermally conductive gasket 22 on the inner surface of the lower shell 2, without any specific restrictions.

[0047] Preferably, continuous convex ridges are arranged around the inside of the lower shell 2. After the upper shell 1 and the lower shell 2 are buckled together, the inner side surface of the upper shell 1 fits with the outer wall of the convex ridges. The arrangement of the convex ridges can prevent external dust from entering the inside of the controller, avoid damage or power failure of electronic devices inside the controller due to dust problems, and further ensure the service life of the controller. In other embodiments, regarding the overall dustproof scheme of the controller, continuous guide grooves can also be arranged around the inside of the upper shell 1, and sealing strips can be filled in the guide grooves to achieve dustproof effect. Conversely, continuous guide grooves and sealing strips can also be arranged around the inside of the lower shell 2, and there is no specific limitation.

[0048] In this embodiment, the lower shell 2 includes a plurality of protrusions 23 , which are arranged on the outer wall of the lower shell 2 , and a positioning hole 231 is provided on each protrusion 23 , so as to fix the controller.

[0049] Embodiment 2

[0050] This embodiment provides a controller, including the controller housing in Embodiment 1. The controller also includes a circuit board 100 and a communication terminal. An opening 4 is provided on the controller housing. The circuit board 100 is placed in the internal space of the controller housing. The communication terminal is mounted in the opening 4.

[0051] The controller provided in this embodiment has good electromagnetic compatibility and low manufacturing cost.

[0052] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. For those skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the scope of protection of the present invention. It is not necessary and impossible to list all implementation methods here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention shall be included in the scope of protection of the claims of the present invention.

Claims

1. A controller housing, used for protecting a circuit board (100) inside the controller, the circuit board (100) being provided with a plurality of communication terminals, the controller housing being provided with an opening (4) for accommodating the communication terminals, characterized in that: The controller housing comprises: an upper housing (1), a lower housing (2) and a current isolating member (3); the circuit board (100) is placed in a space where the upper housing (1) and the lower housing (2) are interlocked with each other; the current isolating member (3) can be detachably connected to the inner surface of the upper housing (1) facing the circuit board (100); the current isolating member (3) is plate-shaped and vertically connected between the upper housing (1) and the circuit board (100); the current isolating member (3) is located between the electronic device on the circuit board (100) and the connection hole of the communication terminal; the current isolating member (3) comprises a plate-shaped housing component (31) and a conductive foam (32); a receiving groove is provided inside the plate-shaped housing component (31); the shape of the conductive foam (32) is consistent with the shape of the receiving groove; the conductive foam (32) is received in the receiving groove; and the current isolating member (3) is provided with a side of the conductive foam (32) that is arranged in contact with the circuit board (100).

2. The controller housing according to claim 1, characterized in that: The plate-shaped housing component (31) comprises a plate-shaped shell (311) and a support plate, wherein the height of the support plate is smaller than the height of the plate-shaped shell (311), and after the support plate is placed inside the plate-shaped shell (311), the remaining space of the plate-shaped shell (311) serves as the accommodating groove.

3. The controller housing according to claim 2, characterized in that: The plate-shaped shell component (31) further comprises a retaining rib (312), wherein the retaining rib (312) is arranged in close contact with the outer wall of the plate-shaped shell (311), the height of the retaining rib (312) is greater than the height of the outer wall of the plate-shaped shell (311), a plurality of the retaining ribs (312) are provided, and the plurality of the retaining ribs (312) are arranged at intervals.

4. The controller housing according to claim 3, characterized in that: The plate-shaped shell (311) and the retaining rib (312) are an integral structure.

5. The controller housing according to claim 1, characterized in that: An upper opening (11) is provided at the edge of the upper shell (1), and a lower opening (21) is correspondingly provided at the opposite edge of the lower shell (2); the upper opening (11) and the lower opening (21) are aligned with each other to form the opening (4).

6. The controller housing according to claim 1, characterized in that: The upper shell (1) comprises a plurality of heat dissipation fins (12), and the plurality of heat dissipation fins (12) are arranged on the outer surface of the upper shell (1).

7. The controller housing according to claim 1, characterized in that: A plurality of first heat-conducting pads (13) are provided on a side of the upper shell (1) facing the circuit board (100), and the plurality of first heat-conducting pads (13) are in contact with electronic components on the front side of the circuit board (100); And / or, a plurality of second thermal conductive pads (22) are provided on a side of the lower shell (2) facing the back side of the circuit board (100), and the plurality of second thermal conductive pads (22) are in contact with the electronic components on the back side of the circuit board (100).

8. The controller housing according to claim 1, characterized in that: Continuous ridges are provided around the interior of the lower shell (2), and the inner side surface of the upper shell (1) fits with the outer wall of the ridges.

9. The controller housing according to claim 1, characterized in that: The lower shell (2) comprises a plurality of protrusions (23), the plurality of protrusions (23) being arranged on the outer wall of the lower shell (2), and each of the protrusions (23) being provided with a positioning hole (231).

10. A controller, characterized in that: The controller comprises a controller housing as claimed in any one of claims 1 to 9, wherein the controller further comprises a circuit board (100) and a communication terminal, the controller housing is provided with an opening (4), the circuit board (100) is placed in the internal space of the controller housing, and the communication terminal is mounted at the opening (4).

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