CN219938856U - Circuit board for preventing electromagnetic interference - Google Patents
Circuit board for preventing electromagnetic interference Download PDFInfo
- Publication number
- CN219938856U CN219938856U CN202320215308.2U CN202320215308U CN219938856U CN 219938856 U CN219938856 U CN 219938856U CN 202320215308 U CN202320215308 U CN 202320215308U CN 219938856 U CN219938856 U CN 219938856U
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- CN
- China
- Prior art keywords
- circuit board
- shielding
- shielding case
- electromagnetic interference
- pipe
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 239000007788 liquid Substances 0.000 claims abstract description 27
- 238000001816 cooling Methods 0.000 claims abstract description 20
- 230000002265 prevention Effects 0.000 claims abstract description 6
- 238000004891 communication Methods 0.000 claims description 2
- 230000017525 heat dissipation Effects 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 5
- 239000000110 cooling liquid Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000002184 metal Substances 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
Landscapes
- Cooling Or The Like Of Electrical Apparatus (AREA)
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
Abstract
The utility model discloses an electromagnetic interference prevention circuit board which comprises a base and the like, wherein a shielding box is fixed on the base, a shielding cover is positioned on the shielding box, a first electric telescopic rod and a second electric telescopic rod are respectively positioned on two sides of the shielding box, a first spring is positioned between a first clamping plate and one inner side of the shielding box, the first clamping plate is positioned on one side of a circuit board body, a second spring is positioned between a second clamping plate and the other inner side of the shielding box, the second clamping plate is positioned on the other side of the circuit board body, the circuit board body is positioned in the shielding box, the shielding plate is positioned on the circuit board body, a liquid inlet pipe and a liquid outlet pipe are respectively positioned on one side of the base, and the liquid inlet pipe and the liquid outlet pipe are respectively connected with a liquid inlet and a liquid outlet of a cooling pipe. The utility model realizes electromagnetic interference between the whole circuit board and external electromagnetic waves, the shielding plate isolates adjacent electronic elements, electromagnetic wave mutual interference shadows generated among the electronic elements are avoided, the shielding effect is improved, and the heat dissipation performance is improved.
Description
Technical Field
The present utility model relates to a circuit board, and more particularly, to an electromagnetic interference preventing circuit board.
Background
The circuit board is used as one of important electronic control components, is a support body of the electronic components, and is mainly used as a carrier for electric connection of the electronic components. It is also called a printed circuit board (PCB board) because it is made by electronic printing. After the electronic equipment adopts the circuit board, the error of manual wiring is avoided, automatic insertion or mounting, automatic soldering and automatic detection of electronic components can be realized, the quality of the electronic equipment is prevented from being uneven, the labor productivity is improved, the manufacturing cost is reduced, and more importantly, the circuit board is convenient to maintain, and further the maintenance cost is reduced.
In the application of circuit boards, it is necessary to avoid electromagnetic interference between components exceeding a certain level. For example, chinese patent No. 201922042390.X discloses a PCB board, which uses an electromagnetic shielding cover for shielding electronic components, and the electromagnetic shielding cover covers the electronic components, so as to enhance the electromagnetic interference resistance.
The technical scheme of the patent has the following technical problems: only carry out electromagnetic interference with external electromagnetic wave with whole PCB board, unable shielding electromagnetic wave between each electronic component, electromagnetic shield covers whole circuit board in addition, and inconvenient heat dissipation influences the life of electronic component and circuit board.
Disclosure of Invention
In view of the above, in order to overcome the defects of the prior art, the present utility model provides an electromagnetic interference prevention circuit board.
The utility model solves the technical problems by the following technical proposal: the utility model provides an electromagnetic interference prevention's circuit board, a serial communication port, it includes the base, the shielding case, the shield cover, first electric telescopic handle, the second electric telescopic handle, first spring, first grip block, the second spring, the second grip block, the circuit board body, the shield plate, the feed liquor pipe, the drain pipe, the cooling tube, the shielding case is fixed on the base, the shield cover is located the top of shielding case, first electric telescopic handle, the second electric telescopic handle is located the both sides of shielding case respectively, first spring is located between one interior survey of first grip block and shielding case, first grip block is located one side of circuit board body, second spring is located between another interior survey of second grip block and shielding case, the second grip block is located the opposite side of circuit board body, the circuit board body is located the shielding incasement, the shield plate is located the circuit board body, the feed liquor pipe, the drain pipe is located one side of base, the feed liquor pipe, the drain pipe is connected with the inlet of cooling tube respectively, the drain hole, the cooling tube is located the base.
Preferably, a first shielding layer is arranged in the shielding box.
Preferably, a second shielding layer is arranged on the shielding cover.
Preferably, the top end of the shielding box is provided with a plurality of guide posts, and the shielding cover is provided with a plurality of through holes corresponding to the guide posts.
Preferably, the shielding case is provided with two grooves.
Preferably, the cooling tube has a curved shape.
Preferably, the liquid inlet pipe is provided with a first valve, and the liquid outlet pipe is provided with a second valve.
The utility model has the positive progress effects that: the circuit board body is placed in the shielding box, the first spring is located between the first clamping plate and one inner side of the shielding box, the first clamping plate is located on one side of the circuit board body, the second spring is located between the second clamping plate and the other inner side of the shielding box, and the second clamping plate is located on the other side of the circuit board body, so that the circuit board body is clamped and fixed, and stability is improved.
And secondly, the shielding cover is arranged on the shielding box, the shielding cover and the shielding box form a closed shielding space, electromagnetic interference between the whole circuit board and external electromagnetic waves is achieved, adjacent electronic elements are isolated by the shielding plate, electromagnetic wave mutual interference shadows generated between the electronic elements are avoided, and the shielding effect is improved.
Thirdly, the cooling liquid is introduced into the cooling pipe through the liquid inlet pipe, the cooling pipe dissipates heat of the circuit board, and in addition, when the temperature of the shielding box is too high, the shielding cover can be lifted through the first electric telescopic rod and the second electric telescopic rod, so that the shielding cover is separated from the shielding box, heat of the shielding box can be emitted, the heat dissipation performance is further improved, and the service lives of the electronic element and the circuit board are prolonged.
Drawings
Fig. 1 is a schematic structural diagram of an electromagnetic interference preventing circuit board according to the present utility model.
Fig. 2 is a schematic view of the structure of the present utility model with the shield cover removed.
Fig. 3 is a schematic structural diagram of a first spring, a first clamping plate, a second spring, a second clamping plate, and the like in the present utility model.
Fig. 4 is a schematic structural view of a shielding case and other elements in the present utility model.
FIG. 5 is a schematic view of the structure of the cooling tube and other elements in the present utility model.
Fig. 6 is a schematic structural diagram of a circuit board body and a shielding plate in the present utility model.
In the figure: base 1, shielding case 2, shield cover 3, first electric telescopic rod 4, second electric telescopic rod 5, first spring 6, first grip block 7, second spring 8, second grip block 9, circuit board body 10, shielding plate 11, feed liquor pipe 12, drain pipe 13, cooling pipe 14, first shielding layer 15, second shielding layer 16, guide pillar 17, through-hole 18, recess 19, first valve 20, second valve 21.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.
In the description of the present utility model, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present utility model and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.
As shown in fig. 1 to 6, the circuit board for preventing electromagnetic interference of the present utility model comprises a base 1, a shielding case 2, a shielding cover 3, a first electric telescopic rod 4, a second electric telescopic rod 5, a first spring 6, a first clamping plate 7, a second spring 8, a second clamping plate 9, a circuit board body 10, a shielding plate 11, a liquid inlet pipe 12, a liquid outlet pipe 13 and a cooling pipe 14, wherein the shielding case 2 is fixed on the base 1, the shielding cover 3 is positioned above the shielding case 2, the first electric telescopic rod 4 and the second electric telescopic rod 5 are respectively positioned at two sides of the shielding case 2, the first spring 6 is positioned between the first clamping plate 7 and one inner side of the shielding case 2, the first clamping plate 7 is positioned at one side of the circuit board body 10, the second spring 8 is positioned between the second clamping plate 9 and the other inner side of the shielding case 2, the second clamping plate 9 is positioned at the other side of the circuit board body 10, the circuit board body 10 is positioned in the shielding case 2, the shielding plate 11 is positioned on the circuit board body 10, the liquid inlet pipe 12 and the liquid outlet pipe 13 are both positioned at one side of the base 1, the liquid outlet pipe 13 and the liquid inlet pipe 13 are respectively positioned at the liquid inlet pipe 13 and the cooling pipe 14 are respectively positioned at the liquid inlet and the liquid outlet pipe 1 and the cooling pipe 14 respectively positioned at the base 1.
The shielding case 2 is internally provided with a first shielding layer 15 which can be woven by metal wires to further resist interference to external electromagnetic waves. The shielding cover 3 is provided with a second shielding layer 16 which can be woven by metal wires to further resist interference to external electromagnetic waves. The top end of the shielding case 2 is provided with a plurality of guide posts 17, and the shielding case 3 is provided with a plurality of through holes 18 corresponding to the guide posts 17, so that the shielding case 3 can be kept vertically lifted and lowered, and random movement is prevented. The shielding cover 3 is provided with two grooves 19, so that the shielding cover is convenient to plug with the top end of the first electric telescopic rod 4 and the top end of the second electric telescopic rod 5, and is convenient to use. The cooling tube 14 is curved in shape, and increases the heat dissipation area and improves the heat dissipation effect. The liquid inlet pipe 12 is provided with a first valve 20, and the liquid outlet pipe 13 is provided with a second valve 21, so that the cooling liquid can be conveniently controlled to enter and exit.
The working principle of the utility model is as follows: the components of the utility model are all common standard components or components known to those skilled in the art, and the structures and principles thereof are all known to those skilled in the art through technical manuals or through routine experimental methods. When the novel circuit board is used, the shielding case 3 is taken down firstly, the circuit board body 10 is placed in the shielding case 2, the first spring 6 is positioned between the first clamping plate 7 and one inner side of the shielding case 2, the first clamping plate 7 is positioned on one side of the circuit board body 10, the second spring 8 is positioned between the second clamping plate 9 and the other inner side of the shielding case 2, and the second clamping plate 9 is positioned on the other side of the circuit board body 10, so that the circuit board body 10 is clamped and fixed, and the stability is improved. Then, the shielding case 3 is mounted on the shielding case 2, the shielding case 3 and the shielding case 2 form a closed shielding space, electromagnetic interference between the whole circuit board and external electromagnetic waves is achieved, the shielding plate 11 isolates adjacent electronic elements, electromagnetic wave mutual interference shadows generated between the electronic elements are avoided, and shielding effect is improved. According to the utility model, the cooling liquid is introduced into the cooling pipe 14 through the liquid inlet pipe 12, the cooling pipe 14 dissipates heat of the circuit board, in addition, when the temperature of the shielding case 2 is too high, the shielding case 3 can be lifted up through the first electric telescopic rod 4 and the second electric telescopic rod 5, so that the shielding case 3 is separated from the shielding case 2, the heat of the shielding case 2 can be emitted, the heat dissipation performance is further improved, the service lives of electronic elements and the circuit board are prolonged, and the shielding case 3 is lowered to the shielding case 2 after cooling.
While the fundamental and principal features of the utility model and advantages of the utility model have been shown and described, it will be apparent to those skilled in the art that the utility model is not limited to the details of the foregoing exemplary embodiments, but may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.
Claims (7)
1. The utility model provides an electromagnetic interference prevention's circuit board, a serial communication port, it includes base (1), shielding case (2), shield cover (3), first electric telescopic handle (4), second electric telescopic handle (5), first spring (6), first grip block (7), second spring (8), second grip block (9), circuit board body (10), shield plate (11), feed liquor pipe (12), drain pipe (13), cooling tube (14), shielding case (2) are fixed on base (1), shield cover (3) are located the top of shielding case (2), first electric telescopic handle (4), second electric telescopic handle (5) are located the both sides of shielding case (2) respectively, first spring (6) are located between one interior survey of first grip block (7) and shielding case (2), first grip block (7) are located one side of circuit board body (10), second spring (8) are located between another interior survey of second grip block (9) and shielding case (2), second grip block body (9) are located circuit board body (10), circuit board body (10) are located circuit board (10), drain pipe (12) are located on one side of circuit board (2), the liquid inlet pipe (12) and the liquid outlet pipe (13) are respectively connected with a liquid inlet and a liquid outlet of the cooling pipe (14), and the cooling pipe (14) is positioned in the base (1).
2. The electromagnetic interference prevention circuit board as claimed in claim 1, wherein a first shielding layer (15) is provided in the shielding case (2).
3. The electromagnetic interference protection circuit board according to claim 1, characterized in that the shielding cover (3) is provided with a second shielding layer (16).
4. The circuit board for preventing electromagnetic interference according to claim 1, wherein the top end of the shielding case (2) is provided with a plurality of guide posts (17), and the shielding case (3) is provided with a plurality of through holes (18) corresponding to the guide posts (17).
5. The electromagnetic interference preventing circuit board according to claim 1, characterized in that the shielding case (3) is provided with two grooves (19).
6. The electromagnetic interference preventing circuit board as claimed in claim 1, characterized in that the cooling tube (14) is curved in shape.
7. The electromagnetic interference prevention circuit board according to claim 1, wherein the liquid inlet pipe (12) is provided with a first valve (20), and the liquid outlet pipe (13) is provided with a second valve (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320215308.2U CN219938856U (en) | 2023-02-15 | 2023-02-15 | Circuit board for preventing electromagnetic interference |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320215308.2U CN219938856U (en) | 2023-02-15 | 2023-02-15 | Circuit board for preventing electromagnetic interference |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219938856U true CN219938856U (en) | 2023-10-31 |
Family
ID=88504310
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320215308.2U Active CN219938856U (en) | 2023-02-15 | 2023-02-15 | Circuit board for preventing electromagnetic interference |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219938856U (en) |
-
2023
- 2023-02-15 CN CN202320215308.2U patent/CN219938856U/en active Active
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |