Housing cover for electronic components

Abstract

To further improve sealing performance in a housing for an electronic component.SOLUTION: A housing cover according to the present disclosure is a housing cover 10 for an electronic component that closes an opening part of a housing main body 1 that accommodates an electronic component, and includes a seal member 11 that closes a gap with a circumference of the opening part of the housing main body 1 at a position on a back surface side of the housing cover 10 that faces the circumference of the opening part of the housing main body 1. Ribs 21 and 22 having the same shape and size on a front surface side and a back surface side are formed at the same positions corresponding to each other on the front surface side and the back surface side at least at a position in a vicinity of the circumference of the housing cover 10.SELECTED DRAWING: Figure 4

Description

[Technical Field]

[0001] The present invention relates to a housing cover used for a housing for an electronic component. [Background technology]

[0002] Patent Document 1 describes a housing for accommodating electronic components. Patent Document 1 states that housings for electronic components are required to have electromagnetic wave shielding properties, excellent heat dissipation characteristics and mechanical strength, and be lightweight, and describes a housing whose main components are metal components whose strength is reinforced with a resin component. In addition, Patent Document 1 describes forming ribs made of a resin component on both the front and back surfaces of the housing to prevent warping. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent No. 7212453 Summary of the Invention [Problem to be solved by the invention]

[0004] However, the housing described in Patent Document 1 as mentioned above does not take into consideration further sealing properties. In other words, although Patent Document 1 describes suppressing warpage, there is still a risk of warpage occurring during molding because the ribs on the front and back are asymmetrical. As a result, there is a problem in that it is not possible to further improve the sealing properties of the housing that houses electronic components.

[0005] Therefore, an object of the present disclosure is to provide a housing cover that can further improve the sealing performance of a housing for an electronic component. [Means for solving the problem]

[0006] A housing cover for an electronic component according to one embodiment of the present disclosure includes: A housing cover for electronic components that closes an opening of a housing main body that houses electronic components, a seal member for sealing a gap between the periphery of the opening of the housing body and the rear surface of the housing cover, the seal member being located at a position facing the periphery of the opening of the housing body; Ribs having the same shape and size on the front and back sides are formed at the same corresponding positions on at least the periphery of the housing cover on the front and back sides, The structure is as follows. Furthermore, a housing for an electronic component according to one embodiment of the present disclosure includes: a housing body that houses electronic components; a housing cover that closes the opening of the housing body, a seal member for sealing a gap between the periphery of the opening of the housing body and the rear surface of the housing cover, the seal member being located at a position facing the periphery of the opening of the housing body; Ribs having the same shape and size on the front and back sides are formed at the same corresponding positions on at least the periphery of the housing cover on the front and back sides, The structure is as follows. [Effects of the Invention]

[0007] With the above-described configuration, the present disclosure can provide a housing cover that can further improve the sealing performance of a housing for an electronic component. [Brief explanation of the drawings]

[0008] [Figure 1] 1 is a diagram showing the appearance of a housing for an electronic component according to the present disclosure. [Figure 2] 2 is a perspective view of the housing cover for the electronic component disclosed in FIG. 1, as viewed from the front side. FIG. [Figure 3] 2 is a perspective view of the housing cover for the electronic component disclosed in FIG. 1, as viewed from the back side. FIG. [Figure 4] 2 is a cross-sectional view of a portion of the housing cover for the electronic component disclosed in FIG. 1. FIG. [Figure 5]2 is an enlarged view of a part of the housing cover for the electronic component disclosed in FIG. 1. DETAILED DESCRIPTION OF THE INVENTION

[0009] <Embodiment 1> A first embodiment of the present disclosure will be described with reference to FIGS.

[0010] The housing for electronic components in this embodiment is to be mounted on a vehicle and house the electronic components. The housing is composed of a housing body 1 that houses the electronic components and a housing cover 10 that covers an opening of the housing body 1. The housing cover 10 will be described in detail below.

[0011] As shown in Fig. 1, the housing cover 10 is configured from a substantially plate-like member having a predetermined thickness and a substantially rectangular outer shape so as to cover the opening on the top side of the housing main body 1, which is a box body having a substantially rectangular parallelepiped shape. The housing cover 10 is manufactured, for example, by molding resin. Note that the outer shapes of the housing main body 1 and the housing cover 10 are not limited to those shown in Fig. 1 and may be any shape.

[0012] Fig. 2 shows a perspective view of the housing cover 10 as seen from the front side, and Fig. 3 shows a perspective view of the housing cover 10 as seen from the back side, i.e., the side located inside the housing main body 1. Fig. 4 shows a cross-sectional view of a portion taken along line AA in Fig. 2, and Fig. 5 shows an enlarged view of a portion of Fig. 2.

[0013] First, we will explain the configuration of the front surface side of the housing cover 10. As shown in Fig. 2, the front surface side of the housing cover 10 is formed in a flat shape near the center, and the area near the periphery located further to the outer periphery than the center is formed as a stepped portion 20 that is lower in height than the surface area near the center. In other words, the front surface side of the housing cover 10 has an annular stepped portion 20 located near the outer periphery.

[0014] The step portion 20 formed on the front side of the housing cover 10 has a flat surface with a plurality of linear ribs 21 protruding from the surface. In other words, the ribs 21 are formed only on the step portion 20 near the outer periphery on the front side of the housing cover 10. This makes it possible to suppress deformation such as warping due to thermal shrinkage during molding in the step portion 20 near the outer periphery, and as will be described later, makes it possible to uniformly compress the seal member 11 provided on the back side of the housing cover 10 by sandwiching it between the housing cover 10 and the housing main body 1. However, on the front side of the housing cover 10, the ribs 21 are not necessarily limited to being formed only near the outer periphery, and may be formed in other locations.

[0015] The multiple ribs 21 formed on the stepped portion 20 on the front side of the housing cover 10 are each formed in a linear shape of a predetermined length, with their ends extending in a circumferential direction. For example, as shown in FIG. 2 , each rib 21 is formed so that one end is located in a flat area near the center and the other end extends toward an edge area near the periphery. Therefore, each rib 21 is formed so that the periphery of the housing cover 10 is not enclosed by the rib itself. Furthermore, because each rib 21 is formed with a predetermined distance between them, the gaps between the ribs form open passages (openings) that open in the circumferential direction, which ensure water flow paths as described below. In this case, the gaps between the other ends of adjacent ribs 21 form the open ends of the open passages, ensuring water flow paths in a circumferential direction at multiple locations.

[0016] FIG. 5 shows an enlarged view of the periphery of the front surface of the housing cover 10. In this figure, three ribs 21 are respectively denoted by reference numerals 21a, 21b, and 21c. As shown in this figure, an open passage indicated by arrow Y1 is formed between adjacent ribs 21a and 21b, and its end is an open end that opens toward the periphery. The adjacent ribs 21a and 21b are formed so that the distance between the ribs narrows toward the periphery. In other words, the open passage indicated by arrow Y1 is formed so that it gradually narrows toward the periphery. Similarly, an open passage is formed between adjacent ribs 21b and 21c, as indicated by arrow Y2, whose distance gradually narrows toward the periphery, and its end is an open end that opens toward the periphery.

[0017] 5, on the front surface of the housing cover 10, a surface located further to the periphery than the open ends of the open passages Y1 and Y2 formed by the spacing between the ribs has a second step portion 23 formed lower than the surface of the step portion 20. In this embodiment, the second step portions 23 are formed at multiple locations on the peripheral edge of the housing cover 10 and are formed as circular surfaces lower than the surface of the step portion 20. Note that the sealing member 11 provided on the rear surface of the housing cover 10 (described later) is positioned inside the second step portion 23, so that compression is uniformly applied to the sealing member 11 during assembly, ensuring sealing performance. However, the second step portion 23 may be formed in any location and may have any shape.

[0018] The surface side of the housing cover 10 is configured as described above, thereby improving drainage. Specifically, the surface side of the housing cover 10 is flat near the center and forms stepped portions 20 with lower heights near the periphery, so that water near the center flows toward the lower stepped portions 20. In this case, the spacing between the multiple ribs 21 in the stepped portion 20 forms open passages Y1 and Y2 that open toward the periphery, and water that flows into the stepped portion 20 flows through these open passages Y1 and Y2. In particular, the open passages Y1 and Y2 narrow toward the periphery, promoting the outflow of water to the periphery. Furthermore, second stepped portions 23 with even lower heights are formed near the open ends of the open passages Y1 and Y2, promoting the outflow of water to the periphery.

[0019] Next, the configuration of the back side of the housing cover 10 will be described. As shown in Fig. 3, ribs 22 are also formed on the back side of the housing cover 10. Specifically, a plurality of ribs 22 are formed all over the back side of the housing cover 10. That is, on the back side of the housing cover 10, a plurality of linear ribs 22 protruding from the back side are formed in locations corresponding to the center of the front side and in locations corresponding to the step portions 20 near the periphery of the front side. Note that the ribs 22 on the back side of the housing cover 10 do not have to be formed near the center, and may be formed only near the periphery, as with the front side.

[0020] Among the ribs 22 on the back side of the housing cover 10, the ribs 22 near the outer periphery are formed in the same positions and with the same shape and size as the ribs 21 formed on the front side. In other words, near the periphery of the housing cover 10, in a location corresponding to the stepped portion 20 on the front side, the ribs 21 and 22 are formed in the same corresponding positions on the front side and the back side, and have the same shape and size on the front side and the back side.

[0021] For example, as shown in the cross-sectional view of Fig. 4, pairs of linear ribs 21a, 22a formed at corresponding positions on the front and back sides are formed to have the same length, width, protruding height, and formed position. Similarly, like the pair of ribs 21b, 22b and the pair of ribs 21c, 22c shown in Fig. 4, all pairs of ribs formed around the periphery of housing cover 10 are formed to have the same length, width, protruding height, and formed position on the front and back sides.

[0022] 3, a sealing member 11 is provided around the periphery of the back side of the housing cover 10. Specifically, the sealing member 11 is formed in a substantially rectangular ring shape corresponding to the outer peripheral shape of the housing cover 10, and is sandwiched between the housing cover 10 and the housing main body 1 near the outer peripheral edge, and is uniformly compressed and positioned. As a result, when the housing cover 10 is assembled to the housing main body 1, the sealing member 11 is positioned so as to face the periphery of the opening of the housing main body 1, i.e., the upper end of the side wall of the housing main body 1, and functions to close the gap with the periphery of the opening of the housing main body 1.

[0023] As described above, the housing cover 10 in this embodiment has ribs 21, 22 of the same shape and size formed at the same positions on the front and back sides around the periphery. This makes it possible to more effectively suppress warping that may occur during molding of the housing cover 10. When the housing cover 10 is attached to the opening of the housing body 1, the opening of the housing body 1 is sealed by the sealing member 11, and warping of the housing cover 10 is further suppressed, thereby improving sealing performance.

[0024] Furthermore, as described above, the front surface side of the housing cover 10 is configured to improve drainage, which can further improve the sealing performance of the housing.

[0025] <Additional Notes> A part or all of the above-described embodiments can be described as follows: The outline of the housing cover of the present invention will be described below. However, the present invention is not limited to the following configuration. (Appendix 1) A housing cover for electronic components that closes an opening of a housing main body that houses electronic components, a seal member for sealing a gap between the periphery of the opening of the housing body and the rear surface of the housing cover, the seal member being located at a position facing the periphery of the opening of the housing body; Ribs having the same shape and size on the front and back sides are formed at the same corresponding positions on at least the periphery of the housing cover on the front and back sides, Housing cover. (Appendix 2) 10. The housing cover according to claim 1, The ribs formed at the same positions on the front and back sides are formed only in the vicinity of the periphery of the housing cover. Housing cover. (Appendix 3) 10. The housing cover according to claim 2, The surface of the housing cover near the periphery of the front surface where the ribs are formed at the same positions on both the front surface and the back surface is lower in height than other portions and is formed in a stepped shape. Housing cover. (Appendix 4) 10. The housing cover according to claim 2, The rib formed on the surface side of the housing cover is formed to have an opening so that the housing cover is not surrounded by the rib itself in the peripheral direction. Housing cover. (Appendix 5) 5. The housing cover according to claim 4, The ribs formed on the surface side of the housing cover are formed to have a predetermined length, and the ribs are formed to be spaced apart from each other, and the gaps between the ribs form the openings. Housing cover. (Appendix 6) 6. The housing cover according to claim 5, The ribs formed on the surface side of the housing cover have ends extending in a circumferential direction, and the openings are formed between the ends of the adjacent ribs. Housing cover. (Appendix 7) 7. The housing cover according to claim 6, The ribs formed on the surface side of the housing cover are formed so that the intervals between adjacent ribs become narrower in the circumferential direction. Housing cover. (Appendix 8) 7. The housing cover according to claim 6, a surface of the housing cover located further to the periphery than the opening on the front surface side is formed to be lower in height than the stepped surface; Housing cover. (Appendix 9) a housing body that houses electronic components; a housing cover that closes the opening of the housing body, a seal member for sealing a gap between the periphery of the opening of the housing body and the rear surface of the housing cover, the seal member being located at a position facing the periphery of the opening of the housing body; Ribs having the same shape and size on the front and back sides are formed at the same corresponding positions on at least the periphery of the housing cover on the front and back sides, Case.

[0026] Although the present invention has been described above with reference to the above-mentioned embodiments, the present invention is not limited to the above-mentioned embodiments. Various modifications that can be understood by those skilled in the art can be made to the configuration and details of the present invention within the scope of the present invention. [Explanation of symbols]

[0027] 1. Main body 10. Housing cover 11 Sealing material 20 Step 21,22 Ribs 23 Second step part

Claims

1. A housing cover for electronic components that closes an opening of a housing main body that houses electronic components, a seal member for sealing a gap between the periphery of the opening of the housing body and the rear surface of the housing cover, the seal member being located at a position facing the periphery of the opening of the housing body; Ribs having the same shape and size on the front and back sides are formed at the same corresponding positions on at least the periphery of the housing cover on the front and back sides, Housing cover.

2. The housing cover according to claim 1, The ribs formed at the same positions on the front and back sides are formed only in the vicinity of the periphery of the housing cover. Housing cover.

3. The housing cover according to claim 2, The surface of the housing cover near the periphery of the front surface where the ribs are formed at the same positions on both the front surface and the back surface is lower in height than other portions and is formed in a stepped shape. Housing cover.

4. The housing cover according to claim 3, The rib formed on the surface side of the housing cover is formed to have an opening so that the housing cover is not surrounded by the rib itself in the peripheral direction. Housing cover.

5. The housing cover according to claim 4, The ribs formed on the surface side of the housing cover are formed to have a predetermined length, and the ribs are formed to be spaced apart from each other, and the gaps between the ribs form the openings. Housing cover.

6. The housing cover according to claim 5, The ribs formed on the surface side of the housing cover have ends extending in a circumferential direction, and the openings are formed between the ends of adjacent ribs. Housing cover.

7. The housing cover according to claim 6, The ribs formed on the surface side of the housing cover are formed so that the intervals between adjacent ribs become narrower in the circumferential direction. Housing cover.

8. The housing cover according to claim 6, a surface of the housing cover located further to the periphery than the opening on the front surface side is formed to be lower in height than the stepped surface; Housing cover.

9. a housing body that houses electronic components; a housing cover that closes the opening of the housing body, a seal member for sealing a gap between the periphery of the opening of the housing body and the rear surface of the housing cover, the seal member being located at a position facing the periphery of the opening of the housing body; Ribs having the same shape and size on the front and back sides are formed at the same corresponding positions on at least the periphery of the housing cover on the front and back sides, Case.

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