CN211352971U - Shielding case, circuit board assembly and terminal - Google Patents
Shielding case, circuit board assembly and terminal Download PDFInfo
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- CN211352971U CN211352971U CN201922229175.0U CN201922229175U CN211352971U CN 211352971 U CN211352971 U CN 211352971U CN 201922229175 U CN201922229175 U CN 201922229175U CN 211352971 U CN211352971 U CN 211352971U
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- side wall
- shielding
- abutting portion
- cover
- circuit board
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Abstract
The utility model discloses a shield cover, circuit board assembly and terminal. The shielding cover comprises a shielding outer cover and a shielding inner cover, the shielding inner cover comprises a first top part with an opening and a first side wall, and the first side wall extends out from the periphery of the first top part; the shielding outer cover comprises a second top and a second side wall, and the second side wall extends out from the periphery of the second top; the shielding outer cover covers the shielding inner cover, the second top covers the opening, and the first side wall is tightly attached to the second side wall; when the opening of the shielding inner cover is shielded by the shielding outer cover, the first side wall and the second side wall are both formed by stretching and are tightly attached, the first side wall and the second side wall form a sealing edge, and the first side wall and the second side wall are more tightly buckled through a buckle structure extending out from the edge of the first side wall. Therefore, after the shielding cover is installed on the circuit board, a closed space is formed among the shielding cover inner cover, the shielding outer cover and the circuit board, the problem of signal leakage of the shielding cover is solved, and the shielding effect is improved.
Description
Technical Field
The embodiment of the invention relates to the technical field of mobile terminals, in particular to a shielding case, a circuit board assembly and a terminal.
Background
At present, in order to ensure that signals and functions of each module are independent from each other and are not interfered by other modules, shielding measures are adopted in a design process of communication products, shielding by adopting a shielding case is the most common method, and especially the requirement of the current 5G technology on the shielding effect of the shielding case is high. The existing shielding cover has two forms, one is an integral shielding cover, the other is a two-piece shielding cover, a bending process is adopted, and an opening and closing hole is reserved on the side wall.
In the process of implementing the invention, the inventor finds that at least the following problems exist in the prior art: the integrated shielding cover is inconvenient to disassemble and maintain; the two-piece shield side wall bent part and the buckling hole have leakage, so that each module cannot be well ensured not to be interfered, and other functional modules can be influenced even if the leakage is small. The shielding case in the prior art can not meet the requirement of the current 5G era on the shielding effect of the shielding case.
Disclosure of Invention
The embodiment of the invention aims to provide a shielding case, which can improve the shielding effect and ensure that all modules are not interfered.
To solve the above technical problem, an embodiment of the present invention provides a shield case, including: the shielding outer cover is used for fixing the shielding inner cover on the circuit board; the shielding inner cover comprises a first top part with an opening and a first side wall, and the first side wall extends out from the periphery of the first top part; the shielding outer cover comprises a second top and a second side wall, and the second side wall extends out from the periphery of the second top; the shielding outer cover covers the shielding inner cover, the second top covers the opening, and the first side wall is tightly attached to the second side wall; the edge of the first side wall extends out of a plurality of buckling structures, and each buckling structure is abutted against the outer surface of the second side wall.
The embodiment of the invention also provides a circuit board assembly which comprises the shielding case.
The embodiment of the invention also provides a terminal which comprises the circuit board assembly.
Compared with the prior art, the embodiment of the invention has the advantages that the first side wall extends from the periphery of the first top of the shielding inner cover, the second side wall extends from the periphery of the second top of the shielding outer cover, when the shielding outer cover is covered on the shielding inner cover, the second top covers the opening of the first top, the first side wall is tightly attached to the second side wall, and the edge of the first side wall extends out of a plurality of buckle structures to be abutted against the outer surface of the second side wall; namely, when the opening of the shielding inner cover is shielded by the shielding outer cover, the first side wall and the second side wall are stretched and tightly attached, the first side wall and the second side wall form a sealing edge, and the first side wall and the second side wall are tightly buckled by the buckling structure; therefore, after the shielding cover is installed on the circuit board, a closed space is formed among the shielding cover inner cover, the shielding outer cover and the circuit board, so that the problem of signal leakage of the shielding cover is solved, and the shielding effect is improved.
In addition, the buckle structure comprises a connecting part, an elastic arm and a supporting part which are sequentially connected, the connecting part is connected with the edge of the first side wall, and the supporting part is supported on the outer surface of the second side wall under the elastic action of the elastic arm. In this embodiment, the elastic force of the elastic arm forces the abutting portion to abut against the outer surface of the second side wall, so that the first side wall and the second side wall are further tightly attached to each other, and the elastic arm is convenient to mount and dismount.
In addition, each buckle structure comprises two connecting parts and two elastic arms, and the abutting part comprises a first abutting part and a second abutting part; the connecting portion is formed by outward horizontal extension of the edge of the first side wall, the elastic arms are formed by upward extension of free ends of the connecting portion and then oblique extension of the free ends of the connecting portion towards the direction of the first side wall, the first abutting portion is connected with the two elastic arms, the first abutting portion is formed by upward oblique extension of the free ends of the two elastic arms towards the direction far away from the first side wall, the second abutting portion is formed by downward extension of the free portions of the first abutting portion close to the direction of the two elastic arms, and the second abutting portion abuts against the outer surface of the second side wall. Through setting up two connecting portion and two positions that play the arm further fixed portion 303 of holding, the reinforcing is held the effect, and simultaneously, first portion of holding is kept away from first lateral wall and is leaned out for the shield cover is when the maintenance, and it is more convenient to dismantle.
In addition, a groove is formed in the outer surface of the second side wall corresponding to the abutting portion, and the abutting portion abuts against the groove. The second side wall is provided with the groove, so that the abutting position of the abutting part is fixed, and the abutting effect is enhanced.
In addition, a plurality of buckle structure evenly distributed is in the border of first lateral wall. The buckle structures which are uniformly distributed are abutted against the outer surface of the second side wall, so that the outer surface of the second side wall is uniformly stressed, the clinging effect of the first side wall and the second side wall is better, and the shielding effect is further improved.
In addition, the height of the first side wall is greater than or equal to the height of the second side wall. The height of the first side wall is the same as that of the second side wall, leakage is further reduced, and the shielding effect is improved.
Drawings
One or more embodiments are illustrated by way of example in the accompanying drawings, which correspond to the figures in which like reference numerals refer to similar elements and which are not to scale unless otherwise specified.
Fig. 1 is a schematic structural view of a shield can according to a first embodiment of the present invention;
fig. 2 is a schematic structural view of a snap structure of a shield case according to a first embodiment of the present invention;
fig. 3 is a schematic cross-sectional view of a snap structure of a shield according to a first embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, embodiments of the present invention will be described in detail below with reference to the accompanying drawings. However, it will be appreciated by those of ordinary skill in the art that numerous technical details are set forth in order to provide a better understanding of the present application in various embodiments of the present invention. However, the technical solution claimed in the present application can be implemented without these technical details and various changes and modifications based on the following embodiments. The following embodiments are divided for convenience of description, and should not constitute any limitation to the specific implementation manner of the present invention, and the embodiments may be mutually incorporated and referred to without contradiction.
A first embodiment of the present invention relates to a shield case. The present embodiment includes: the shielding outer cover is used for fixing the shielding inner cover on the circuit board; the shielding inner cover comprises a first top part with an opening and a first side wall, and the first side wall extends out from the periphery of the first top part; the shielding outer cover comprises a second top and a second side wall, and the second side wall extends out from the periphery of the second top; the shielding outer cover covers the shielding inner cover, the second top covers the opening, and the first side wall is tightly attached to the second side wall; the edge of the first side wall extends out of a plurality of buckle structures, and each buckle structure is propped against the outer surface of the second side wall.
The following description specifically describes implementation details of a shield according to the present embodiment, and the following description is provided only for the sake of understanding and is not necessary for implementing the present embodiment.
A schematic structural diagram of the shield case in this embodiment is shown in fig. 1, and specifically includes: the circuit board shielding device comprises a shielding outer cover 20, a shielding inner cover 10 fixed on the circuit board, and a plurality of hook structures 30.
In this embodiment, the shield inner cover 10 includes a first top 101 having an opening 103 and a first side wall 102, and the first side wall 102 extends from the periphery of the first top 101 by a drawing process; the shield case 20 includes a second top portion 201 and a second sidewall 202, and the second sidewall 202 is also extended from the periphery of the second top portion 201 by a drawing process. When shielding outer cover 20 closes on shielding inner cover 10, opening 103 is shielded to second top 201, and first lateral wall 102 and second lateral wall 202 closely laminate, the border of first lateral wall 102 and second lateral wall 202 forms sealed banding, a plurality of buckle structure supports and holds on the second lateral wall is the surface, make first lateral wall and second lateral wall closely laminate more, form inclosed space between shielding inner cover 10 and the shielding outer cover 20, because the module setting is between shielding inner cover 10 and shielding outer cover 20, make the module be in inclosed space, thereby improve shielding effect, guarantee not disturbed between the module.
In one example, the height of the first sidewall 102 is greater than or equal to the height of the second sidewall 202. By making the height of the first side wall 102 greater than or equal to the height of the second side wall 202, when the shielding outer cover 20 covers the shielding inner cover 10, the first top 101 can be closely attached to the second top 201, so that a sealed space is further formed between the shielding inner cover 10 and the shielding outer cover 20, and the shielding effect of the shielding cover is improved.
The structure diagram of the snap structure of the shielding case in this embodiment is shown in fig. 2, the cross-sectional structure diagram of the snap structure is shown in fig. 3, the snap structures 30 extend from the edge of the first sidewall 102, and each snap structure 30 abuts against the outer surface of the second sidewall 202. The extended fastening structures 30 tightly fasten the first sidewall 102 and the second sidewall 202, so that a more closed space is further formed between the first sidewall 102 and the second sidewall 103, and the shielding effect is improved.
In this embodiment, the fastening structure 30 includes a connecting portion 301, an elastic arm 302 and a supporting portion 303 connected in sequence, the connecting portion 301 is connected to the edge of the first sidewall 102, and the supporting portion 303 is supported on the outer surface of the second sidewall 202 under the elastic force of the elastic arm 302. The elastic force of the elastic arm 302 enables the abutting portion 303 to abut against the outer surface of the second side wall 202, so that the first side wall 102 is tightly attached to the second side wall 202, and meanwhile, the elastic arm 302 has a certain elastic range, so that the shielding cover is more convenient to mount and dismount.
In one example, the abutting portion includes a first abutting portion 3031 and a second abutting portion 3032, and each of the fastening structures 30 includes two connecting portions 301 and two elastic arms 302; the connecting portion 301 is formed by extending the edge of the first side wall 102 horizontally, the elastic arm 302 is formed by extending the free end of the connecting portion 301 upwards and then extending the free end of the connecting portion towards the first side wall 102 in an inclined manner, the first abutting portion 3031 is connected with the two elastic arms 302, the first abutting portion 3031 is formed by extending the free ends of the two elastic arms 302 upwards and extending the free ends of the two elastic arms 302 in an inclined manner towards the direction far away from the first side wall 102, the second abutting portion 3032 is formed by extending the free portion of the first abutting portion 3031 towards the direction of the two elastic arms 302 downwards, and the second abutting portion abuts against the outer surface of the second side wall. Through setting up two connecting portion and two positions of bullet arm further fixed portion of holding, the reinforcing is held the effect to holding, and simultaneously, first portion of holding is kept away from first lateral wall and is leaned out for the shield cover is when the maintenance, and it is more convenient to dismantle.
In an example, the connection portion 301 may be formed by extending the first sidewall 102, or formed by other manners, the elastic arm 302 is connected to the connection portion 301, the abutting portion 303 abuts against the outer surface of the second sidewall 202 under the elastic force of the elastic arm 302, wherein the second abutting portion 3032 in the abutting portion 303 abuts against the outer surface of the second sidewall 202 and is tightly attached to the second sidewall 202, and the interference amount between the second abutting portion 303 and the second sidewall 202 is 0.05mm to 0.1mm, for example, 0.05mm, 0.75mm, and 0.01 mm.
In one example, a groove is formed on the outer surface of the second sidewall 202 at a position corresponding to the abutting portion 303, and the abutting portion 303 abuts against the groove. Specifically, the second abutting portion 3032 abuts against the groove, and the abutting position of the abutting portion 303 is fixed by forming the groove on the second side wall 202, so that the abutting effect is enhanced.
In one example, the width of the second abutting portion 3032 is 1.5mm to 2.0mm, such as 1.5mm, 1.75mm, or 2.0 mm.
In one example, the plurality of snap structures 30 are evenly distributed on the edge of the first sidewall 102. The first side wall 102 and the second side wall 202 are further tightly buckled through the plurality of evenly distributed buckling structures 30, so that leakage is reduced.
The above technical solutions are divided for clarity of description, and may be combined into one solution or split some solutions, and decomposed into multiple solutions, so long as they include the same logical relationship, which is within the protection scope of this patent; it is within the scope of this patent to add insignificant modifications or introduce insignificant designs to the technical solution, but not to change the core design of the technical solution.
In this embodiment, the first side wall extends from the periphery of the first top of the shielding inner cover, the second side wall extends from the periphery of the second top of the shielding outer cover, when the shielding outer cover is covered on the shielding inner cover, the second top covers the opening of the first top, the first side wall is tightly attached to the second side wall, and the first side wall is tightly fastened to the second side wall through the plurality of fastener structures extending from the edge of the first side wall; namely, when the opening of the shielding inner cover is shielded by the shielding outer cover, the first side wall and the second side wall are stretched and tightly attached, the first side wall and the second side wall form a sealing edge, and the first side wall and the second side wall are tightly buckled by the buckling structure; therefore, after the shielding cover is installed on the circuit board, a closed space is formed among the shielding inner cover, the shielding outer cover and the circuit board, so that the problem of signal leakage of the shielding cover is solved, and the shielding effect is improved.
A second embodiment of the invention relates to a circuit board assembly comprising the above-described shield can.
Specifically, the circuit side assembly uses the shielding cover, so that the shielding effect of the circuit board assembly is increased, the interference problem among modules is improved, and the modules are well prevented from being interfered.
A third embodiment of the invention relates to a terminal comprising a circuit board assembly as described above.
Specifically, the terminal comprises a mobile phone, a computer, a tablet and the like, when the terminal uses the circuit board assembly, the interference among signals of the circuit board assemblies in the terminal is improved, and the experience of a user using the terminal is increased.
It will be understood by those of ordinary skill in the art that the foregoing embodiments are specific examples for carrying out the invention, and that various changes in form and details may be made therein without departing from the spirit and scope of the invention in practice.
Claims (9)
1. A shielding cage, comprising: the shielding outer cover is used for fixing the shielding inner cover on the circuit board; the shielding inner cover comprises a first top part with an opening and a first side wall, and the first side wall extends out from the periphery of the first top part;
the shielding outer cover comprises a second top and a second side wall, and the second side wall extends out from the periphery of the second top;
the shielding outer cover covers the shielding inner cover, the second top covers the opening, and the first side wall is tightly attached to the second side wall;
the edge of the first side wall extends out of a plurality of buckling structures, and each buckling structure is abutted against the outer surface of the second side wall.
2. The shielding case of claim 1, wherein the snap structure comprises a connecting portion, an elastic arm and a supporting portion, the connecting portion, the elastic arm and the supporting portion are sequentially connected, the connecting portion is connected with the edge of the first side wall, and the supporting portion is supported on the outer surface of the second side wall under the elastic force of the elastic arm.
3. The shielding case of claim 2, wherein each of the snap structures includes two of the connecting portions and two of the elastic arms, and the abutting portions include a first abutting portion and a second abutting portion; the connecting portion is formed by outward horizontal extension of the edge of the first side wall, the elastic arms are formed by upward extension of free ends of the connecting portion and then oblique extension of the free ends of the connecting portion towards the direction of the first side wall, the first abutting portion is connected with the two elastic arms, the first abutting portion is formed by upward oblique extension of the free ends of the two elastic arms towards the direction far away from the first side wall, the second abutting portion is formed by downward extension of the free portions of the first abutting portion close to the direction of the two elastic arms, and the second abutting portion abuts against the outer surface of the second side wall.
4. The shielding case of claim 2, wherein a groove is formed on the outer surface of the second sidewall at a position corresponding to the abutting portion, and the abutting portion abuts against the groove.
5. The shielding cage of claim 3, wherein the width of the second abutting portion is 1.5mm to 2.0 mm.
6. The shielding cage according to any one of claims 2 to 5, wherein a plurality of said snap structures are evenly distributed on the edge of said first sidewall.
7. The shielding cage according to any of claims 1 to 5, wherein the height of the first sidewall is greater than or equal to the height of the second sidewall.
8. A circuit board assembly comprising a shielding cage according to any one of claims 1 to 7.
9. A terminal comprising the circuit board assembly of claim 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922229175.0U CN211352971U (en) | 2019-12-10 | 2019-12-10 | Shielding case, circuit board assembly and terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922229175.0U CN211352971U (en) | 2019-12-10 | 2019-12-10 | Shielding case, circuit board assembly and terminal |
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| Publication Number | Publication Date |
|---|---|
| CN211352971U true CN211352971U (en) | 2020-08-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201922229175.0U Active CN211352971U (en) | 2019-12-10 | 2019-12-10 | Shielding case, circuit board assembly and terminal |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113645826A (en) * | 2021-09-14 | 2021-11-12 | 合肥移瑞通信技术有限公司 | Shielding case and electronic equipment |
| CN114867280A (en) * | 2022-07-05 | 2022-08-05 | 宁波均胜新能源研究院有限公司 | Power module, heat dissipation assembly and assembly method of power module |
-
2019
- 2019-12-10 CN CN201922229175.0U patent/CN211352971U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113645826A (en) * | 2021-09-14 | 2021-11-12 | 合肥移瑞通信技术有限公司 | Shielding case and electronic equipment |
| CN114867280A (en) * | 2022-07-05 | 2022-08-05 | 宁波均胜新能源研究院有限公司 | Power module, heat dissipation assembly and assembly method of power module |
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