CN216058116U - Anti-interference circuit board - Google Patents
Anti-interference circuit board Download PDFInfo
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- CN216058116U CN216058116U CN202122114477.0U CN202122114477U CN216058116U CN 216058116 U CN216058116 U CN 216058116U CN 202122114477 U CN202122114477 U CN 202122114477U CN 216058116 U CN216058116 U CN 216058116U
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- circuit board
- shielding
- board body
- heat dissipation
- cover
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Abstract
The utility model discloses an anti-interference circuit board, which comprises a circuit board body, wherein detachable shielding covers are respectively arranged along the peripheral edges of the upper surface and the lower surface of the circuit board body, a plurality of heat dissipation holes are respectively formed in the top wall and the peripheral side walls of the shielding covers, shielding pieces are uniformly connected to the positions, corresponding to the heat dissipation holes, of the top wall and the peripheral side walls of the shielding covers, and the heat dissipation holes below the shielding pieces are shielded by the shielding pieces from the upper side and one side. The electromagnetic shielding circuit has good electromagnetic shielding effect, can shield electromagnetic interference caused by the circuit board and an external circuit board or other electronic devices, realizes mutual noninterference and mutual noninterference, and ensures normal work; in addition, on the basis of not influencing heat dissipation, the maximization effect of shielding electromagnetic interference is realized.
Description
Technical Field
The utility model relates to the technical field of circuit boards, in particular to an anti-interference circuit board.
Background
The circuit board makes the circuit miniaturized, direct-viewing, play an important role to fixed circuit's batch production and optimization electrical apparatus overall arrangement, and the circuit board can be called printed circuit board or printed circuit board, is the carrier that various electronic components carry out electrical connection.
With the increasing degree of integration and the increasing diversification of functions, various electronic components or modules are generally distributed or carried on the circuit board, and some of the electronic components or modules generate electromagnetic interference. In circuit design, it is usually considered to separate these electronic components or modules generating electromagnetic interference from other electronic components or modules, or to reduce the influence by using related technical means. But still inevitably causes interference with external circuit boards or other electronic devices; in addition, the external circuit board or other electronic devices also interfere with the electronic components or modules on the circuit board, i.e., interfere with each other, thereby affecting the normal operation.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects and shortcomings in the prior art, and provides an anti-interference circuit board which has a good electromagnetic shielding effect and can shield electromagnetic interference caused by the circuit board and an external circuit board or other electronic devices so as to realize mutual noninterference and ensure normal work; in addition, on the basis of not influencing heat dissipation, the maximization effect of shielding electromagnetic interference can be realized.
In order to achieve the purpose, the utility model provides the following technical scheme:
the utility model provides an anti-interference circuit board, including the circuit board body, its characterized in that: along the border department all installs detachable shield cover all around of the upper surface of circuit board body and lower surface, all be equipped with a plurality of louvre on the roof of shield cover and the lateral wall all around, there is the shielding piece in the position homogeneous body coupling corresponding to every louvre on the roof of shield cover and the lateral wall all around, the shielding piece shield the louvre of its below from top and one side.
Furthermore, the shielding cover and the shielding sheet are both made of permalloy, annular wing edges which are integrally connected are arranged along the peripheral edge of a cover opening of the shielding cover, and the annular wing edges on the upper side and the lower side are respectively and correspondingly fixed on the peripheral edges of the upper surface and the lower surface of the circuit board body through a plurality of locking pieces.
Furthermore, the cross section of the shielding sheet is arc-shaped, extends upwards from one side of the corresponding heat dissipation hole and covers the upper part of the corresponding heat dissipation hole.
Furthermore, annular insulating pads are correspondingly arranged between the annular wing edges on the upper side and the lower side and the peripheral edges of the upper surface and the lower surface of the circuit board body respectively.
Furthermore, a plurality of mounting holes communicated with the peripheral assembling holes of the circuit board body are respectively formed in the circumferential direction of the annular wing edges along the upper side and the lower side, and each mounting hole is mutually staggered with each locking piece.
Furthermore, each locking piece comprises a C-shaped clamping block and two locking bolts, the open end of the C-shaped clamping block is clamped on the annular wing edges on the upper side and the lower side, the upper end and the lower end of the C-shaped clamping block are respectively provided with a vertical screw hole, and the two locking bolts are respectively and correspondingly screwed in the two vertical screw holes.
Furthermore, the C-shaped clamp block adopts an insulating piece, and the locking bolt adopts an insulating bolt.
Furthermore, a communication interface and an electronic connector which are correspondingly connected with the input end and the output end of the circuit board body are arranged on the side wall of one side of the shielding cover.
Compared with the prior art, the utility model has the beneficial effects that:
the detachable shielding covers are respectively arranged on the upper side and the lower side of the circuit board, so that the electromagnetic shielding device has a good electromagnetic shielding effect, can shield electromagnetic interference caused by the circuit board and an external circuit board or other electronic devices, realizes mutual noninterference and mutual noninterference, and ensures normal work; in addition, set up the louvre on the shield cover to all set up the shielding piece that shields it from top and one side in the position that corresponds to every louvre, on the radiating basis of not influencing, realized shielding electromagnetic interference's maximize effect.
Drawings
FIG. 1 is a schematic view of the structure of the present invention.
Fig. 2 is an enlarged view of a portion a of fig. 1.
Fig. 3 is an enlarged view of a portion B of fig. 1.
FIG. 4 is a schematic view of a shield (without heat dissipation holes) according to the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-4, an anti-interference circuit board comprises a circuit board body 1, a detachable shielding cover 2 is installed along the upper surface and the peripheral edge of the lower surface of the circuit board body 1, a plurality of radiating holes 3 are formed in the top wall and the peripheral side wall of the shielding cover 2, shielding pieces 4 are integrally connected to the top wall and the peripheral side wall of the shielding cover 2 at positions corresponding to the radiating holes, and the radiating holes below the shielding pieces 4 are shielded from the upper side and one side.
In the utility model, the shielding cover 2 and the shielding sheet 4 are both made of permalloy, which has good electromagnetic shielding effect, the annular wing edges 21 which are integrally connected are arranged along the peripheral edge of the cover opening of the shielding cover 2, and the annular wing edges 21 at the upper side and the lower side are respectively and correspondingly fixed at the peripheral edges of the upper surface and the lower surface of the circuit board body 1 through a plurality of locking pieces 5.
In the utility model, the cross section of the shielding sheet 4 is arc-shaped, extends upwards from one side of the corresponding heat dissipation hole and covers the upper part of the corresponding heat dissipation hole. Therefore, the maximum effect of shielding electromagnetic interference is realized on the basis of not influencing heat dissipation.
In the utility model, annular insulating pads 6 are respectively and correspondingly arranged between the annular wing edges 21 on the upper side and the lower side and the peripheral edges of the upper surface and the lower surface of the circuit board body 1. Therefore, the annular wing edges 21 on the upper side and the lower side and the circuit board body 1 are insulated, and cannot conduct electricity, so that short circuit is avoided.
In the utility model, a plurality of mounting holes 7 communicated with the peripheral assembly holes of the circuit board body 1 are respectively arranged along the circumferential direction of the annular wing edges 21 on the upper side and the lower side, and each mounting hole is staggered with each locking piece. From this, realize whole installation, and can not cause mutual influence.
In the utility model, each locking piece comprises a C-shaped clamping block 51 and two locking bolts 52, the open end of the C-shaped clamping block 51 is clamped on the annular wing edges 21 at the upper side and the lower side, the upper end and the lower end of the C-shaped clamping block 51 are respectively provided with a vertical screw hole 53, and the two locking bolts 52 are correspondingly screwed in the two vertical screw holes 53 respectively.
Accordingly, the C-shaped clamp block 51 is an insulating member, and the lock bolt 52 is an insulating bolt. Therefore, when the circuit board body 1 is contacted, the circuit board body cannot conduct electricity, and short circuit is avoided.
In the utility model, a communication interface 8 and an electronic connector 9 which are correspondingly connected with the input end and the output end of the circuit board body 1 are arranged on one side wall of the shielding case 2. Thereby, the circuit board body 1 is connected to the outside.
The utility model is further described below with reference to the accompanying drawings:
when the circuit board is installed, the shielding cases 2 (two) are respectively covered on the upper surface and the lower surface of the circuit board body 1, so that the annular wing edges 21 on the upper side and the lower side are attached to the peripheral edges of the upper surface and the lower surface of the circuit board body 1. Then, the open ends of the C-shaped clamp blocks 51 are clamped to the annular flanges 21 on the upper and lower sides, and the locking bolts 52 are tightened to fix the shield case 2.
In the working process, due to the good electromagnetic shielding effect of the shielding case 2, the electromagnetic interference caused by the circuit board body 1 and an external circuit board or other electronic devices can be shielded, so that the mutual influence and the mutual interference are realized, and the normal work is ensured. In addition, a plurality of radiating holes 3 on the shielding case 2 play a role of radiating, and the shielding sheet 4 shields the radiating holes below the shielding sheet from the upper side and one side, so that the maximum effect of shielding electromagnetic interference is realized on the basis of not influencing the radiating.
When the shielding cover 2 is disassembled, the locking bolt 52 is loosened, each locking piece is disassembled, and the convenience is very high.
Although the present description is described in terms of embodiments, not every embodiment includes only a single embodiment, and such description is for clarity only, and those skilled in the art should be able to integrate the description as a whole, and the embodiments can be appropriately combined to form other embodiments as will be understood by those skilled in the art.
Therefore, the above description is only a preferred embodiment of the present application, and is not intended to limit the scope of the present application; all changes which come within the meaning and range of equivalency of the claims are to be embraced within their scope.
Claims (8)
1. The utility model provides an anti-interference circuit board, including the circuit board body, its characterized in that: along the border department all installs detachable shield cover all around of the upper surface of circuit board body and lower surface, all be equipped with a plurality of louvre on the roof of shield cover and the lateral wall all around, there is the shielding piece in the position homogeneous body coupling corresponding to every louvre on the roof of shield cover and the lateral wall all around, the shielding piece shield the louvre of its below from top and one side.
2. The anti-jamming circuit board of claim 1, wherein: the shielding cover and the shielding sheet are both made of permalloy, annular wing edges which are integrally connected are arranged along the peripheral edge of a cover opening of the shielding cover, and the annular wing edges on the upper side and the lower side are respectively and correspondingly fixed at the peripheral edges of the upper surface and the lower surface of the circuit board body through a plurality of locking pieces.
3. A tamper resistant circuit board according to claim 2, further comprising: the cross section of the shielding sheet is arc-shaped, extends upwards from one side of the corresponding heat dissipation hole and covers the upper part of the corresponding heat dissipation hole.
4. A tamper resistant circuit board according to claim 2, further comprising: annular insulating pads are correspondingly arranged between the annular wing edges on the upper side and the lower side and the peripheral edges of the upper surface and the lower surface of the circuit board body respectively.
5. A tamper resistant circuit board according to claim 2, further comprising: and a plurality of mounting holes communicated with the peripheral assembly holes of the circuit board body are respectively formed in the circumferential direction of the annular wing edges along the upper side and the lower side, and each mounting hole is mutually staggered with each locking piece.
6. A tamper resistant circuit board according to claim 2, further comprising: each locking piece comprises a C-shaped clamping block and two locking bolts, the open end of the C-shaped clamping block is clamped on the annular wing edges on the upper side and the lower side, the upper end and the lower end of the C-shaped clamping block are respectively provided with a vertical screw hole, and the two locking bolts are respectively screwed in the two vertical screw holes correspondingly.
7. The anti-jamming circuit board of claim 6, wherein: the C-shaped clamp block is made of an insulating piece, and the locking bolt is made of an insulating bolt.
8. The anti-jamming circuit board of claim 1, wherein: and a communication interface and an electronic connector which are correspondingly connected with the input end and the output end of the circuit board body are arranged on the side wall of one side of the shielding cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122114477.0U CN216058116U (en) | 2021-09-03 | 2021-09-03 | Anti-interference circuit board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122114477.0U CN216058116U (en) | 2021-09-03 | 2021-09-03 | Anti-interference circuit board |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216058116U true CN216058116U (en) | 2022-03-15 |
Family
ID=80597071
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122114477.0U Active CN216058116U (en) | 2021-09-03 | 2021-09-03 | Anti-interference circuit board |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216058116U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115175441A (en) * | 2022-08-01 | 2022-10-11 | 哈尔滨理工大学 | Vacuum low dielectric constant and low conductivity micro-current transmission circuit board |
-
2021
- 2021-09-03 CN CN202122114477.0U patent/CN216058116U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115175441A (en) * | 2022-08-01 | 2022-10-11 | 哈尔滨理工大学 | Vacuum low dielectric constant and low conductivity micro-current transmission circuit board |
| CN115175441B (en) * | 2022-08-01 | 2024-03-12 | 哈尔滨理工大学 | Vacuum low dielectric constant and low conductivity micro-current transmission circuit board |
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