Shielding box

Abstract

A shielding box is arranged on a circuit board. The shielding box comprises a box body. The box body comprises a top wall, a plurality of side walls and a V-shaped groove. The top wall is connected to the side walls to define an accommodating space. The side wall is arranged on the circuit board. The top wall comprises an inner surface and an outer surface, and the inner surface faces the circuit board. The V-shaped groove is arranged around the edge of the top wall and is recessed from the inner surface, so that the top wall is separated under stress.

Description

Technical Field

[0001] The utility model relates to a box, in particular to a shielding box. Background Art

[0002] The shielding box currently used for shielding noise is not effective, which makes the electronic components susceptible to interference from the external environment and affects the signal. Therefore, how to improve the noise shielding effect of the shielding box is an urgent problem to be solved in the art. Utility Model Content

[0003] The utility model aims to provide a shielding box which can effectively shield noise.

[0004] The shielding box of the utility model is arranged on a circuit board. The shielding box includes a box body. The box body includes a top wall, a plurality of side walls and a V-shaped groove. The top wall is connected to the side walls to enclose a containing space. The side walls are arranged on the circuit board. The top wall includes an inner surface and an outer surface, and the inner surface faces the circuit board. The V-shaped groove is arranged around the edge of the top wall and is recessed from the inner surface to facilitate the separation of the top wall under force.

[0005] According to one embodiment of the present invention, a transfer component is further included, wherein the transfer component is disposed on the box body.

[0006] According to one embodiment of the present invention, the box body further comprises a groove, the groove is recessed from the outer surface of the top wall, and the groove is spaced apart from the V-shaped groove by a distance.

[0007] According to one embodiment of the present invention, the groove surrounds the orthographic projection of the V-shaped groove on the outer surface of the top wall.

[0008] The shielding box of the utility model is arranged on a circuit board. The shielding box includes a box body and a cover plate. The box body includes a top wall, a plurality of side walls and a groove. The top wall is connected to the side walls, and the side walls are arranged on the circuit board. The top wall includes an inner surface and an outer surface, and the inner surface faces the circuit board. The groove is arranged around the edge of the top wall and is recessed from the inner surface. The groove includes a top end, and the top wall has an opening, and the edge of the opening corresponds to the top end. The cover plate is arranged on the top wall and covers the opening, and the box body and the cover plate together form a accommodating space.

[0009] According to one embodiment of the present invention, a transfer member is further included, wherein the transfer member is disposed on the box body and is communicated with the accommodating space.

[0010] According to one embodiment of the present invention, the box body includes a groove, the groove is recessed from the outer surface of the top wall, and the groove is spaced apart from the groove by a distance.

[0011] According to one embodiment of the present invention, the cover plate covers the groove.

[0012] According to one embodiment of the present invention, a solder is further included. The solder is disposed in the groove, and the cover plate is connected to the box body through the solder.

[0013] According to one embodiment of the present invention, the concave groove surrounds an orthographic projection of the groove on the outer surface of the top wall.

[0014] Based on the above, the V-shaped groove of the shielding box of the utility model is located on the inner surface and is not exposed. The edge of the V-shaped groove is arranged around the top wall and is recessed from the inner surface to facilitate the top wall to be separated by force. The box body has better shielding properties and can effectively shield the noise of the external environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of a shielding box according to an embodiment of the utility model.

[0016] Figure 2 yes Figure 1 Cross-sectional view of the shielding box along line AA.

[0017] Figure 3 yes Figure 1 Schematic diagram of the alignment of the shielding box and the positioning piece.

[0018] Figure 4 yes Figure 3 Schematic diagram of the shielding box after it is cut.

[0019] Figure 5 It is a schematic diagram of a shielding box before assembly according to another embodiment of the utility model.

[0020] Figure 6 yes Figure 5 Schematic diagram of the shielding box after assembly.

[0021] Figure 7 yes Figure 6 Cross-sectional view of the shielding box.

[0022] The reference numerals are as follows:

[0023] C: Cutting line

[0024] D1, D2: distance

[0025] D3: Spacing

[0026] E1: Edge

[0027] E2: Top

[0028] E3: Bottom

[0029] L1: First axis

[0030] L2: Second axis

[0031] P1: Cutting edge

[0032] P2: Opening

[0033] S1: Outer surface

[0034] S2: Inner surface

[0035] 100a, 100b: shielding box

[0036] 110a, 110b: box

[0037] 112a, 112b: top wall

[0038] 114: Side wall

[0039] 115: Accommodation space

[0040] 116a: V-shaped groove

[0041] 116b: Groove

[0042] 118: Groove

[0043] 120: Adapter

[0044] 130: Cover

[0045] 140: Solder

[0046] 200: Circuit board

[0047] 300: Positioning piece DETAILED DESCRIPTION

[0048] Figure 1 It is a schematic diagram of a shielding box according to an embodiment of the utility model. Figure 2 yes Figure 1 A cross-sectional view of the shielding box along line AA. Please also refer to Figure 1 and Figure 2, the shielding box 100a includes a box body 110a and an adapter 120. The box body 110a is a one-piece type, and the box body 110a includes a top wall 112a, a plurality of side walls 114 and a V-shaped groove 116a. The top wall 112a is connected to these side walls 114 to enclose a receiving space 115, and the V-shaped groove 116a is located at the top wall 112a. The adapter 120 is arranged on one of the side walls 114 of the box body 110a. The shielding box 100a of this embodiment can be arranged on a circuit board 200. The shielding box 100a can be arranged on the circuit board 200 to cover an electronic component (not shown) to shield the noise of the external environment. The shielding box 100a has better shielding properties and has better noise shielding ability. The electronic components in the receiving space 115 of the shielding box 100a can be electrically connected to an external electronic device (not shown) through the adapter 120.

[0049] The box body 110a includes a top wall 112a and four side walls 114. The top wall 112a includes an inner surface S2 ( Figure 2 ) and an outer surface S1, and an inner surface S2 faces the circuit board 200. Figure 2 As shown, the V-shaped groove 116a is recessed from the inner surface S2 of the top wall 112a. The opening of the V-shaped groove 116a faces away from the outer surface S1. Figure 1 The V-shaped groove 116a cannot be seen from a viewing angle, and the V-shaped groove 116a is blocked by the outer surface S1 of the top wall 112a and is not exposed.

[0050] like Figure 2 As shown, the V-shaped groove 116a includes two edges E1 and a top E2, and the distance D1 between the two edges E1 and the outer surface S1 along a first axis L1 is greater than the distance D2 between the top E2 and the outer surface S1 along the first axis L1, so that the cross-sectional shape of the V-shaped groove 116a is an inverted V shape. The first axis L1 is perpendicular to the top wall 112a. The distance D1 is equal to the distance between the outer surface S1 and the inner surface S2 of the top wall 112a (that is, the thickness of the top wall 112a). Figure 1 A cutting line C is schematically shown by a dotted line, and the cutting line C corresponds to the top E2 of the V-shaped groove 116a. The cutting line C can be regarded as the positive projection of the top E2 to the outer surface S1 of the top wall 112a. The cutting line C (V-shaped groove 116a) is set around the edge of the top wall 112a.

[0051] like Figure 1 and Figure 2As shown, the box body 110a of the present embodiment also includes a groove 118, which is recessed from the outer surface S1 of the top wall 112a, so that the groove 118 is exposed on the top wall 112a. The groove 118 can be seen when observing from the outside of the shielding box 100a. The spacing between the center of the V-shaped groove 116a and the top wall 112a along a second axis L2 is smaller than the spacing between the center of the groove 118 and the top wall 112a along the second axis L2. The second axis L2 is perpendicular to the first axis L1. The groove 118 surrounds the positive projection (cutting line C) of the V-shaped groove 116a to the outer surface S1 of the top wall 112a, and the groove 118 is adjacent to the side wall 114. The stress of the top end E2 (cutting line C) of the V-shaped groove 116a is more concentrated, so as to facilitate the separation of the top wall 112a under stress. In order to prevent the stress concentration area (top end E2) of the V-shaped groove 116a from interfering with the concave groove 118, the concave groove 118 and the V-shaped groove 116a are spaced apart by a specific distance D3 along the second axis L2.

[0052] The concave groove 118 of the present embodiment can be formed by stamping, but is not limited thereto. The distance from a bottom E3 of the concave groove 118 to the inner surface S2 of the top wall 112a is equal to the distance from the outer surface S1 to the inner surface S2 (the thickness of the top wall 112a), to maintain the structural strength of the shielding box 100a. In another embodiment not shown, the distance from the bottom E3 of the concave groove 118 to the inner surface S2 is less than the distance from the outer surface S1 to the inner surface S2.

[0053] The top wall 112a of the shielding box 100a and these side walls 114 can be assembled by welding, but are not limited to this. In an embodiment not shown, the shielding box 100a as a whole can be formed by stamping, and the top wall 112a and these side walls 114 are integrated. The adapter 120 and the box body 110a can be assembled by riveting. The adapter 120 is, for example, an RF adapter. The side wall 114 of the shielding box 100a can be, for example, arranged on the circuit board 200 by surface mount welding (Surface Mount Technology, SMT) mode.

[0054] After the shielding box 100a and the circuit board 200 are assembled, if the electronic components in the shielding box 100a are to be repaired or tested, the shielding box 100a needs to be opened. The method of opening the shielding box 100a is, for example, to cut the top wall 112a of the shielding box 100a. After cutting, a part of the top wall 112a is removed to expose the electronic components inside the shielding box 100a.

[0055] Figure 3 yes Figure 1 Schematic diagram of the alignment of the shielding box and the positioning piece. Figure 4 yes Figure 3 Schematic diagram of the shield box after it is cut. Figure 3 and Figure 4, the method of cutting the shielding box 100a is, for example, to cover the shielding box 100a with a positioning member 300. The positioning member 300 includes a cutting opening P1, and the edge of the cutting opening P1 corresponds to the cutting line C. Since the stress of the top E2 of the V-shaped groove 116a is more concentrated, the corresponding cutting line C area on the top wall 112a is easier to be cut, and other areas of the top wall 112a can maintain a certain thickness to maintain the structural strength of the shielding box 100a. Then, a cutter (not shown) is used to cut along the edge of the cutting opening P1, and the top wall 112a can be cut along the cutting line C to form the box body 110b. The top wall 112b of the box body 110b after being cut has an opening P2, and the user can repair or detect the electronic components on the circuit board 200 through the opening P2. The cutting method of the shielding box 100a is not limited to this.

[0056] Figure 5 It is a schematic diagram of a shielding box before assembly according to another embodiment of the utility model. Figure 6 yes Figure 5 Schematic diagram of the shielding box after assembly. Figure 7 yes Figure 6 See also Figures 5 to 7 , the shielding box 100b includes a box body 110b, a cover plate 130, a solder 140 and an adapter 120. The box body 110b includes a top wall 112b, a plurality of side walls 114, a groove 116b and an opening P2. The edge of the opening P2 of the top wall 112b corresponds to the top end E2 of the groove 116b. The groove 118 surrounds the opening P2. The cover plate 130 is arranged on the top wall 112b and covers the opening P2, so that the box body 110b and the cover plate 130 form a accommodating space 115 together. The solder 140 is arranged on the groove 118, and the cover plate 130 is connected to the box body 110a through the solder 140. The solder 140 is, for example, solder paste. The shielding box 100b of this embodiment has the same effect as the aforementioned embodiment.

[0057] The casing 110b of the shielding box 100b of the present embodiment is for example the casing 110b formed after the top wall 112a is cut in the aforementioned embodiment.After the top wall 112a is cut, the V-shaped groove 116a is formed as groove 116b.The cover plate 130 can be connected with the casing 110b by solder 140, and forms the shielding box 100b of the present embodiment.It can be seen from this that the shielding box 100a of the aforementioned embodiment can be provided with the cover plate 130 to form the shielding box 100b after the top wall 112a is cut.

[0058] The manufacturing method of the shielding box 100b (that is, the connection method of the cover plate 130 and the box body 110b) includes the following steps. First, provide a box body 110b with a top wall 112b having an opening P2. Then, set the solder 140 in the groove 118 of the box body 110b. Since the groove 118 is exposed to the shielding box 100b, the user can visually confirm the setting position of the solder 140, and the design of the groove 118 can position the solder 140 at a specific position to enhance the assembly convenience of the shielding box 100b. After the solder 140 is set, the cover plate 130 is welded together with the top wall 112b through the solder 140. Figure 5 and Figure 6 As shown, the cover plate 130 covers the opening P2 and the groove 118 . When the shield box 100 b is viewed from the outside, the opening P2 , the groove 116 b and the groove 118 are shielded by the cover plate 130 .

[0059] In summary, the groove of the shielding box of the utility model is located on the inner surface and is not exposed, and the top of the groove is adjacent to the outer surface of the top wall. The box body has better shielding performance and can effectively shield the noise of the external environment.

Claims

1. A shielding box, arranged on a circuit board, characterized in that: include: A box body includes a top wall, multiple side walls and a V-shaped groove. The top wall is connected to the multiple side walls to enclose a containing space. The multiple side walls are arranged on the circuit board. The top wall includes an inner surface and an outer surface. The inner surface faces the circuit board. The V-shaped groove is arranged around the edge of the top wall and is recessed from the inner surface to facilitate the separation of the top wall under force.

2. The shielding box according to claim 1, characterized in that: The utility model also comprises an adapter, wherein the adapter is arranged on the box body.

3. The shielding box according to claim 1, characterized in that: The box body also includes a groove, which is recessed from the outer surface of the top wall, and is spaced apart from the V-shaped groove by a distance.

4. The shielding box according to claim 3, characterized in that: The groove surrounds an orthographic projection of the V-shaped groove onto the outer surface of the top wall.

5. A shielding box, arranged on a circuit board, characterized in that: include: A box body, comprising a top wall, a plurality of side walls and a groove, the top wall is connected to the plurality of side walls, the plurality of side walls are arranged on the circuit board, the top wall comprises an inner surface and an outer surface, the inner surface faces the circuit board, the groove is arranged around the edge of the top wall and is recessed from the inner surface, the groove comprises a top end, the top wall has an opening, the edge of the opening corresponds to the top end; as well as A cover plate is arranged on the top wall and covers the opening. The box body and the cover plate together form a containing space.

6. The shielding box according to claim 5, characterized in that: It also includes a transfer component, wherein the transfer component is arranged on the box body and communicated with the accommodating space.

7. The shielding box according to claim 5, characterized in that: The box body comprises a groove, which is recessed from the outer surface of the top wall, and is spaced apart from the groove by a distance.

8. The shielding box according to claim 7, characterized in that: The cover plate covers the groove.

9. The shielding box according to claim 7, characterized in that: The invention also comprises a solder, which is arranged in the groove, and the cover plate is connected to the box body through the solder.

10. The shielding box according to claim 7, characterized in that: The recessed groove surrounds an orthographic projection of the groove onto the outer surface of the top wall.

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