CN220044074U - Shielding cover and circuit board assembly - Google Patents

Abstract

The utility model discloses a shielding cover and a circuit board assembly, wherein the shielding cover comprises a frame and a cover, the cover comprises a body and a first side wall bent downwards from the edge of the body, and a plurality of first convex hulls are arranged on the inner side of the first side wall; the edge of frame includes the second lateral wall, be equipped with on the second lateral wall with the kidney-shaped slotted hole of first convex closure block, the inboard of first lateral wall still is equipped with a plurality of second convex closure, the second convex closure is used for contradicting the outer wall surface of second lateral wall. The second convex hull is additionally arranged on the inner side of the first side wall of the cover of the shielding cover and is used for abutting against the outer wall surface of the second side wall of the frame, so that the frame and the cover of the shielding cover can be tightly matched while the production yield of the shielding cover is guaranteed, after the frame and the cover are assembled, sliding friction or impact between the first convex hull and the frame caused by sliding of the cover is avoided, and the shielding cover is beneficial to improving the use experience of a user.

Description

Shielding cover and circuit board assembly

Technical Field

The utility model relates to the technical field of shielding structures, in particular to a shielding cover and a circuit board assembly.

Background

The utility model of China patent application number 201820331868.3 discloses a shielding cover structure, which comprises a frame and a cover, wherein a plurality of convex hulls are arranged on the side wall of the cover, slotted holes matched with the convex hulls are arranged on the side wall of the frame, and the slotted holes are designed into waist shapes for the purpose of reducing processing precision requirements and reject ratio.

However, in the practical use process, it is found that, because the convex hull is not tightly matched with the kidney-shaped slot hole, the convex hull can displace to a certain extent along the length direction of the kidney-shaped slot hole, and this results in that the shielding cover structure is easy to generate abnormal sound when the circuit board assembly using the shielding cover structure shakes.

Disclosure of Invention

The utility model mainly aims to provide a shielding cover with a novel structure and a circuit board assembly with the shielding cover, and aims to solve the problem that the existing shielding cover is easy to generate abnormal sound due to incapability of tight fit.

In order to solve the technical problems, the first technical scheme adopted by the utility model is as follows: the shielding cover comprises a frame and a cover, wherein the cover comprises a body and a first side wall bent downwards from the edge of the body, and a plurality of first convex hulls are arranged on the inner side of the first side wall; the edge of frame includes the second lateral wall, be equipped with on the second lateral wall with the kidney-shaped slotted hole of first convex closure block, the inboard of first lateral wall still is equipped with a plurality of second convex closure, the second convex closure is used for contradicting the outer wall surface of second lateral wall.

Further, the first convex hull and the second convex hull are arranged at intervals.

Further, the height of the first convex hull protruding inwards is larger than the height of the second convex hull protruding inwards.

Further, the kidney-shaped slotted hole is of a slot structure or a hole structure.

Further, the first side walls include first walls arranged in the X-axis direction and second walls arranged in the Y-axis direction, the number of the first walls is greater than or equal to two, and the number of the second walls is greater than or equal to two.

Further, each first wall is provided with the first convex hull and the second convex hull.

Further, each second wall is provided with the first convex hull and the second convex hull.

Further, the bottom surface of the body is provided with a plurality of avoidance grooves.

Further, the number of the avoidance grooves is multiple.

In order to solve the technical problems, the second technical scheme adopted by the utility model is as follows: the circuit board assembly comprises a circuit board and a shielding structure arranged on the circuit board, wherein the shielding structure is the shielding cover.

The utility model has the beneficial effects that: the second convex hull is additionally arranged on the inner side of the first side wall of the cover of the shielding cover and is used for abutting against the outer wall surface of the second side wall of the frame, so that the frame and the cover of the shielding cover can be tightly matched while the production yield of the shielding cover is guaranteed, after the frame and the cover are assembled, sliding friction or impact between the first convex hull and the frame caused by sliding of the cover is avoided, and the shielding cover is beneficial to improving the use experience of a user.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural diagram of a circuit board assembly according to a first embodiment of the present utility model;

fig. 2 is a schematic structural view of a cover in a shielding case according to a first embodiment of the present utility model;

fig. 3 is a schematic structural diagram of a frame in a shielding case according to a first embodiment of the present utility model.

Reference numerals illustrate:

1. a circuit board;

2. a shield;

3. a frame; 31. an opening; 32. a second sidewall; 33. waist-shaped slotted holes;

4. a cover; 41. a body; 42. a first sidewall; 421. a first wall; 422. a second wall; 43. a first convex hull; 44. a second convex hull; 45. avoiding the groove.

Detailed Description

The achievement of the objects, functional features and advantages of the present utility model will be further described with reference to the accompanying drawings, in conjunction with the embodiments.

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that, in the embodiment of the present utility model, directional indications such as up, down, left, right, front, and rear … … are referred to, and the directional indication is merely used to explain the relative positional relationship, movement conditions, and the like between the components in a specific posture such as that shown in the drawings, and if the specific posture is changed, the directional indication is changed accordingly.

In addition, if there is a description of "first", "second", etc. in the embodiments of the present utility model, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature.

In addition, if the meaning of "and/or" is presented throughout this document to include three parallel schemes, taking "and/or" as an example, including a scheme, or a scheme that is satisfied simultaneously. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present utility model.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

Example 1

Referring to fig. 1 to 3, a first embodiment of the present utility model is as follows: the circuit board assembly comprises a circuit board 1 and a shielding structure arranged on the circuit board 1, wherein the shielding structure is a shielding cover 2, specifically, an electronic device to be shielded is arranged on the circuit board 1, and the electronic device to be shielded is positioned in a shielding area of the shielding cover 2.

The shielding cover 2 comprises a frame 3 and a cover 4, the top of the frame 3 is provided with an opening 31, the opening 31 is used for facilitating maintenance personnel to maintain and replace the electronic device to be shielded in the cage area of the shielding cover 2, and after the cover 4 is buckled and connected with the frame 3, the cover 4 closes the opening 31.

The cover 4 comprises a body 41 and a first side wall 42 bent downwards from the edge of the body 41, wherein a plurality of first convex hulls 43 are arranged on the inner side of the first side wall 42; the edge of the frame 3 includes a second side wall 32, the second side wall 32 is provided with a kidney-shaped slot 33 engaged with the first convex hull 43, the inner side of the first side wall 42 is further provided with a plurality of second convex hulls 44, and the second convex hulls 44 are used for abutting against the outer wall surface of the second side wall 32.

The height of the first convex hull 43 protruding inwards is greater than the height of the second convex hull 44 protruding inwards, so that when the second convex hull 44 abuts against the outer wall surface of the second side wall 32, the first convex hull 43 can be clamped into the corresponding kidney-shaped slot 33.

In this embodiment, the kidney-shaped slot 33 has a hole structure, and in other embodiments, the kidney-shaped slot 33 may have a slot structure. Optionally, the first convex hull 43 is a stamped structure formed by stamping; the second convex hull 44 is a stamped structure formed by stamping.

The first side wall 42 includes a first wall 421 disposed along the X-axis direction and a second wall 422 disposed along the Y-axis direction, the number of the first walls 421 being greater than or equal to two, and the number of the second walls 422 being greater than or equal to two. According to the shape of the internal space of the electronic device on which the circuit board assembly is mounted, the shielding case 2 may be designed into different shapes according to actual needs, and is not necessarily rectangular. For example, in the present embodiment, the shielding case 2 has a substantially L-shape overall, and thus, the first side wall 42 includes two first walls 421 and three second walls 422.

Preferably, each first wall 421 is provided with the first convex hull 43 and the second convex hull 44, and each second wall 422 is provided with the first convex hull 43 and the second convex hull 44.

In order to improve the tight-fitting effect of the frame 3 and the cover 4, the first convex hull 43 and the second convex hull 44 are arranged at intervals. That is, the convex hull structure closest to the two sides of the first convex hull 43 is the second convex hull 44, and similarly, the convex hull structure closest to the two sides of the second convex hull 44 is the first convex hull 43. In this embodiment, the convex hull structure closest to the two sides of the first convex hull 43 is the second convex hull 44, or the convex hull structure closest to the two sides of the second convex hull 44 is the first convex hull 43, which is aimed at the first wall 421 or the second wall 422, instead of the whole first side wall 42.

For reducing circuit board subassembly overall height, so that circuit board subassembly can be applicable to among the frivolizing electronic equipment, the bottom surface of body 41 is equipped with a plurality of and dodges groove 45, dodges groove 45 is used for dodging wait to shield electronic device, optionally, dodge the quantity in groove 45 is a plurality of.

The foregoing description is only of the optional embodiments of the present utility model, and is not intended to limit the scope of the utility model, and all the equivalent structural changes made by the description of the present utility model and the accompanying drawings or the direct/indirect application in other related technical fields are included in the scope of the utility model.

Claims (10)

1. The shielding cover comprises a frame and a cover, wherein the cover comprises a body and a first side wall bent downwards from the edge of the body, and a plurality of first convex hulls are arranged on the inner side of the first side wall; the edge of frame includes the second lateral wall, be equipped with on the second lateral wall with the waist shape slotted hole of first convex closure block, its characterized in that: the inner side of the first side wall is also provided with a plurality of second convex hulls, and the second convex hulls are used for abutting against the outer wall surface of the second side wall.

2. The shield according to claim 1, wherein: the first convex hull and the second convex hull are arranged at intervals.

3. The shield according to claim 1, wherein: the first convex hull protrudes inwards to a height greater than that of the second convex hull.

4. The shield according to claim 1, wherein: the kidney-shaped slotted holes are of a slot structure or a hole structure.

5. The shield according to claim 1, wherein: the first side walls comprise first walls arranged along the X-axis direction and second walls arranged along the Y-axis direction, the number of the first walls is greater than or equal to two, and the number of the second walls is greater than or equal to two.

6. The shield according to claim 5, wherein: each first wall is provided with a first convex hull and a second convex hull.

7. The shield according to claim 5, wherein: each second wall is provided with the first convex hull and the second convex hull.

8. The shield according to claim 1, wherein: the bottom surface of body is equipped with a plurality of groove of dodging.

9. The shield according to claim 8, wherein: the number of the avoidance grooves is multiple.

10. Circuit board subassembly, its characterized in that: comprising a circuit board and a shielding structure arranged on the circuit board, wherein the shielding structure is the shielding cover of any one of claims 1-9.