CN219981128U - Circuit board capable of preventing electromagnetic interference - Google Patents
Circuit board capable of preventing electromagnetic interference Download PDFInfo
- Publication number
- CN219981128U CN219981128U CN202321250412.1U CN202321250412U CN219981128U CN 219981128 U CN219981128 U CN 219981128U CN 202321250412 U CN202321250412 U CN 202321250412U CN 219981128 U CN219981128 U CN 219981128U
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- CN
- China
- Prior art keywords
- circuit board
- board body
- electromagnetic interference
- fixing plate
- heat dissipation
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- 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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- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 51
- 229910052802 copper Inorganic materials 0.000 claims abstract description 49
- 239000010949 copper Substances 0.000 claims abstract description 49
- 230000017525 heat dissipation Effects 0.000 claims abstract description 24
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 14
- 239000000741 silica gel Substances 0.000 claims abstract description 13
- 229910002027 silica gel Inorganic materials 0.000 claims abstract description 13
- 230000002265 prevention Effects 0.000 claims abstract description 4
- 230000000694 effects Effects 0.000 description 10
- 238000010168 coupling process Methods 0.000 description 6
- 238000005859 coupling reaction Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 4
- 230000003139 buffering effect Effects 0.000 description 3
- 239000003984 copper intrauterine device Substances 0.000 description 2
- YXLXNENXOJSQEI-UHFFFAOYSA-L Oxine-copper Chemical compound [Cu+2].C1=CN=C2C([O-])=CC=CC2=C1.C1=CN=C2C([O-])=CC=CC2=C1 YXLXNENXOJSQEI-UHFFFAOYSA-L 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000000191 radiation effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000009423 ventilation 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 relates to the technical field of circuit boards and comprises a circuit board body, wherein a shielding assembly is arranged on the upper surface of the circuit board body, a coaming is arranged on the upper surface of the circuit board, four first fixing plates are fixedly connected to the surface of the coaming, screw rods are inserted into the inner wall threads of the first fixing plates, a second fixing plate is sleeved on the surface of the screw rods, a first rubber pad is glued on one side, close to the circuit board body, of the first fixing plate, a second rubber pad is glued on one side, close to the circuit board body, of the second fixing plate, heat dissipation silica gel is arranged on the lower surface of the circuit board body, and a first copper plate is arranged on one side, far away from the circuit board body, of the heat dissipation silica gel. The circuit board capable of preventing electromagnetic interference solves the problem that when the circuit board capable of preventing electromagnetic interference collides, electronic components on the circuit board are easily damaged, so that the circuit board is damaged.
Description
Technical Field
The utility model relates to the technical field of circuit boards, in particular to an electromagnetic interference prevention circuit board.
Background
The circuit board is also called a PCB board, a ceramic circuit board, a circuit board and the like, is a support body of electronic components, and is convenient for installing the electronic components through the circuit board, so that the circuit can be miniaturized, the mass production of the circuit is convenient, and the layout of electrical components is optimized.
The prior art, such as the utility model of publication number CN216626155U, discloses a circuit board that is resistant to electromagnetic interference, comprising: the PCB circuit board and be located the master control shield cover and the anti-coupling subassembly of PCB circuit board top surface, master control shield cover and anti-coupling subassembly are arranged in PCB circuit board top surface electronic component top, and anti-coupling subassembly's tip communicates with the ground wire end through electromagnetic relay, and the output electric connection of master control shield cover has the control module with electromagnetic relay intercommunication. According to the utility model, the active electromagnetic shielding structure is arranged, and the active control between the sensing coil and the grounding electrode of the anti-coupling assembly is utilized, so that the interference source device in the anti-coupling assembly is shielded and weakened through the grounding operation of the anti-coupling assembly after the electronic element in the main control shielding cover works, and the mutual electromagnetic interference between the electronic elements on the surface of the PCB is avoided.
With respect to the above and related art, the inventors believe that there are often the following drawbacks: because the integrated electronic components on the anti-electromagnetic interference circuit board are sensitive, when the anti-electromagnetic interference circuit board collides, the electronic components on the circuit board are easily damaged, so that the circuit board is damaged.
Therefore, we propose an electromagnetic interference preventing circuit board.
Disclosure of Invention
The present utility model is directed to an electromagnetic interference preventing circuit board, so as to solve the problems set forth in the background art.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides an electromagnetic interference prevention's circuit board, includes the circuit board body, the upper surface of circuit board body is equipped with shielding assembly, the last surface mounting of circuit board has the bounding wall, the fixed surface of bounding wall is connected with four first fixed plates.
The components achieve the following effects: can install the bounding wall on the circuit board body through first fixed plate, can protect the electrical components who installs on the circuit board body through the bounding wall, can improve the circuit board body simultaneously to external anti-electromagnetic interference ability.
Preferably, a screw is inserted into the inner wall of the first fixing plate in a threaded manner, and a second fixing plate is sleeved on the surface of the screw.
The components achieve the following effects: the first fixing plate and the second fixing plate can be connected through the screw rod.
Preferably, a first rubber pad is glued on one side of the first fixing plate, which is close to the circuit board body.
The components achieve the following effects: the first rubber pad can play the cushioning effect to reduce the damage that first fixed plate produced the circuit board body.
Preferably, a second rubber pad is glued on one side of the second fixing plate, which is close to the circuit board body.
The components achieve the following effects: the second rubber pad can play the cushioning effect to reduce the damage that the second fixed plate produced the circuit board body.
Preferably, the lower surface of the circuit board body is provided with heat dissipation silica gel, and one side of the heat dissipation silica gel away from the circuit board body is provided with a first copper plate.
The components achieve the following effects: the heat generated during the working of the circuit board body can be conducted to the first copper plate through the heat dissipation silica gel, so that the heat dissipation effect on the circuit board body is achieved.
Preferably, the side surface of the first copper plate is fixedly connected with a second copper plate, and the upper surface of the second copper plate is fixedly connected with a third copper plate.
The components achieve the following effects: the heat of the first copper plate can be transferred to the third copper plate through the second copper plate.
Preferably, a plurality of heat dissipation holes are uniformly formed in the surface of the third copper plate, and a heat dissipation fan is mounted on the upper surface of the circuit board body.
The components achieve the following effects: the third copper plate is provided with the radiating holes, so that the contact area between the third copper plate and air can be increased, the radiating efficiency of the third copper plate is accelerated, the ventilation can be promoted through the radiating fan, and the radiating efficiency of the third copper plate is improved.
Compared with the prior art, the utility model has the beneficial effects that:
1. according to the utility model, the coaming plate can be mounted on the circuit board body by arranging the first fixing plate and the second fixing plate, so that the circuit board can be protected while the electromagnetic interference resistance of the circuit board body is improved, and the damage to electric elements on the circuit board due to collision is avoided as much as possible.
2. According to the utility model, the heat of the circuit board body can be transferred to the first copper plate through the heat-dissipating silica gel, and then transferred to the third copper plate through the second copper plate, and the air circulation is quickened under the action of the heat-dissipating fan, so that the heat dissipation efficiency of the third copper plate is improved, the contact area of the third copper plate and the air can be increased through the heat-dissipating holes, and the heat dissipation efficiency of the third copper plate is improved.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present utility model;
FIG. 2 is a schematic view of another angle structure of the present utility model;
FIG. 3 is a schematic view of the partial structure of FIG. 1 according to the present utility model;
FIG. 4 is a schematic view of the partial structure of FIG. 2 according to the present utility model;
fig. 5 is an enlarged view of fig. 4 at a in accordance with the present utility model.
In the figure: 1-a circuit board body; a 2-shield assembly; 3-coaming; 4-a first fixing plate; 5-a second fixing plate; 6-a screw; 7-a first copper plate; 8-a second copper plate; 9-a third copper plate; 10-heat dissipation holes; 11-a first rubber pad; 12-a second rubber pad; 13-radiating silica gel; 14-heat dissipation fan.
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. 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.
Referring to fig. 1-5, the present utility model provides a technical solution: an anti-electromagnetic interference circuit board comprises a circuit board body 1, wherein a shielding component 2 is arranged on the upper surface of the circuit board body 1.
The specific arrangement and function of the whole will be specifically described below.
As shown in fig. 1, 2 and 3, the top surface of the circuit board is provided with a coaming 3, and the surface of the coaming 3 is fixedly connected with four first fixing plates 4. Can install bounding wall 3 on circuit board body 1 through first fixed plate 4, can protect the electrical components who installs on the circuit board body 1 through bounding wall 3, can improve circuit board body 1 simultaneously to external anti-electromagnetic interference ability. The screw rod 6 is inserted into the inner wall threads of the first fixing plate 4, and the second fixing plate 5 is sleeved on the surface of the screw rod 6. The first fixing plate 4 and the second fixing plate 5 can be connected by a screw 6.
The side of the first fixing plate 4, which is close to the circuit board body 1, is glued with a first rubber pad 11. The first rubber pad 11 can play a role of buffering, so that damage to the circuit board body 1 caused by the first fixing plate 4 is reduced. The second rubber pad 12 is glued on one side of the second fixing plate 5 close to the circuit board body 1. The second rubber pad 12 can play a role of buffering, so that damage to the circuit board body 1 caused by the second fixing plate 5 is reduced.
As shown in fig. 2, 4 and 5, the lower surface of the circuit board body 1 is provided with a heat dissipation silica gel 13, and one side of the heat dissipation silica gel 13 away from the circuit board body 1 is provided with a first copper plate 7. The heat generated during the operation of the circuit board body 1 can be conducted to the first copper plate 7 through the heat radiation silica gel 13, so that the heat radiation effect on the circuit board body 1 is achieved. The side of the first copper plate 7 is fixedly connected with a second copper plate 8, and the upper surface of the second copper plate 8 is fixedly connected with a third copper plate 9. The heat of the first copper plate 7 can be transferred to the third copper plate 9 via the second copper plate 8.
The surface of the third copper plate 9 is uniformly provided with a plurality of heat dissipation holes 10, and the upper surface of the circuit board body 1 is provided with a heat dissipation fan 14. The third copper plate 9 is provided with the heat dissipation holes 10, so that the contact area between the third copper plate 9 and air can be increased, the heat dissipation efficiency of the third copper plate 9 is accelerated, the air circulation can be promoted through the heat dissipation fan 14, and the heat dissipation efficiency of the third copper plate 9 is improved.
Working principle: when the circuit board is used, the shielding component 2 can avoid electromagnetic interference to the circuit board body 1 as much as possible. When the circuit board is installed, firstly, the coaming 3 is moved to be close to the circuit board body 1, then the screw rod 6 is rotated, the second fixing plate 5 and the second rubber plate are close to the first rubber pad 11, and therefore clamping of the circuit board body 1 is achieved, the coaming 3 is fixed on the circuit board body 1, the first rubber pad 11 and the second rubber pad 12 can play a buffering role, damage to the circuit board body 1 caused by the fact that the first fixing plate 4 and the second fixing plate 5 clamp the circuit board body 1 is reduced, the fixing plate can play a protective role on electric elements installed on the circuit board body 1, and meanwhile the anti-electromagnetic interference capability of the circuit board body 1 to the outside can be increased.
In the use of circuit board, the heat that the circuit board work produced is transmitted to first copper 7 through heat dissipation silica gel 13, and rethread second copper 8 is with on the heat transfer of first copper 7 to third copper 9, can accelerate the circulation of air through heat dissipation fan 14 to improved the radiating efficiency of third copper 9, the area of contact of third copper 9 and air can be increased to the louvre 10 on the third copper 9 simultaneously, can improve the heat and volatilize efficiency of third copper 9.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. The utility model provides an electromagnetic interference prevention's circuit board, includes circuit board body (1), its characterized in that: the circuit board is characterized in that the shielding assembly (2) is arranged on the upper surface of the circuit board body (1), the coaming (3) is arranged on the upper surface of the circuit board, and four first fixing plates (4) are fixedly connected with the surface of the coaming (3).
2. The electromagnetic interference resistant circuit board of claim 1, wherein: the screw rod (6) is inserted into the inner wall threads of the first fixing plate (4), and the second fixing plate (5) is sleeved on the surface of the screw rod (6).
3. The electromagnetic interference resistant circuit board of claim 1, wherein: one side of the first fixing plate (4) close to the circuit board body (1) is glued with a first rubber pad (11).
4. The electromagnetic interference resistant circuit board of claim 2, wherein: and a second rubber pad (12) is glued on one side of the second fixing plate (5) close to the circuit board body (1).
5. The electromagnetic interference resistant circuit board of claim 1, wherein: the circuit board is characterized in that a heat dissipation silica gel (13) is arranged on the lower surface of the circuit board body (1), and a first copper plate (7) is arranged on one side, far away from the circuit board body (1), of the heat dissipation silica gel (13).
6. The electromagnetic interference resistant circuit board of claim 5, wherein: the side of first copper (7) is fixedly connected with second copper (8), the upper surface of second copper (8) is fixedly connected with third copper (9).
7. The electromagnetic interference resistant circuit board of claim 6, wherein: the surface of the third copper plate (9) is uniformly provided with a plurality of heat dissipation holes (10), and the upper surface of the circuit board body (1) is provided with a heat dissipation fan (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321250412.1U CN219981128U (en) | 2023-05-23 | 2023-05-23 | Circuit board capable of preventing electromagnetic interference |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321250412.1U CN219981128U (en) | 2023-05-23 | 2023-05-23 | Circuit board capable of preventing electromagnetic interference |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219981128U true CN219981128U (en) | 2023-11-07 |
Family
ID=88580582
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321250412.1U Active CN219981128U (en) | 2023-05-23 | 2023-05-23 | Circuit board capable of preventing electromagnetic interference |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219981128U (en) |
-
2023
- 2023-05-23 CN CN202321250412.1U patent/CN219981128U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |