CN218006692U - Anti-interference multilayer circuit board - Google Patents
Anti-interference multilayer circuit board Download PDFInfo
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- CN218006692U CN218006692U CN202221551958.6U CN202221551958U CN218006692U CN 218006692 U CN218006692 U CN 218006692U CN 202221551958 U CN202221551958 U CN 202221551958U CN 218006692 U CN218006692 U CN 218006692U
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- circuit board
- protection box
- multilayer circuit
- chucking
- damping device
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Abstract
The utility model discloses a multilayer circuit board of jam-proof, including protection box and a circuit board, protection box left end and right-hand member install fixing device jointly, protection box left side inner wall and right inner wall install chucking damping device jointly, anti jamming unit is installed to protection box upper end, no. two circuit boards are installed to a circuit board upper end, no. three circuit boards are installed to No. two circuit boards upper end, no. one circuit board, no. two circuit boards and No. three circuit boards pass through chucking damping device and install in the protection box. A multilayer circuit board of jam-proof, inhale the interference immunity that the wave plate has not only improved the circuit board through electromagnetic shield glass and heat conduction on the anti jamming unit, also can play certain guard action to multilayer circuit board through electromagnetic shield glass and protection box simultaneously, reduce the outside that it received and collide with, play certain shock attenuation cushioning effect to multilayer circuit board through chucking damping device.
Description
Technical Field
The utility model relates to a circuit board technical field, in particular to multilayer circuit board of jam-proof.
Background
The circuit board is also called a circuit board, a ceramic circuit board, an alumina ceramic circuit board, an aluminum nitride ceramic circuit board, a PCB board, an aluminum substrate, a high-frequency board, a thick copper plate, an impedance board, an ultrathin circuit board and the like. The circuit board enables the circuit to be miniaturized and visualized, and plays an important role in batch production of fixed circuits and optimization of electric appliance layout. However, common circuit boards are divided into single-sided wiring and double-sided wiring, which are commonly called single-sided boards and double-sided boards, and the wiring of circuit boards required in high-end electronic products is more and more complex nowadays, and due to the restriction of product space design factors, people use multilayer circuit boards more and more. 1. Because of the factors of the use environment of the existing multilayer circuit board, for example, when the multilayer circuit board is used beside radio equipment such as broadcasting, television, communication, radar and navigation, the multilayer circuit board can inevitably receive some electromagnetic interference, thereby further influencing the use effect of the multilayer circuit board; 2. when the existing multilayer circuit board is impacted by the outside or the multilayer circuit board falls to the ground carelessly, the multilayer circuit board is easy to be damaged, and the service life of the multilayer circuit board is further influenced.
SUMMERY OF THE UTILITY MODEL
A primary object of the present invention is to provide a multi-layer circuit board with interference prevention, which can effectively solve the problems of the background art.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a multilayer line board of jam-proof, includes protection box and a circuit board, fixing device is installed jointly to protection box left end and right-hand member, protection box left side inner wall and right inner wall install chucking damping device jointly, anti jamming unit is installed to the protection box upper end, no. two circuit boards are installed to No. one circuit board upper end, no. three circuit boards are installed to No. two circuit boards upper end, no. one circuit board, no. two circuit boards and No. three circuit boards pass through chucking damping device and install in the protection box.
Preferably, the anti-jamming unit includes the mounting bracket, electromagnetic shield glass is installed to the mounting bracket upper end, two installation screws are all installed to mounting bracket upper end left part and upper end right part, heat conduction wave absorption plate is installed to a circuit board lower extreme, protection box upper end left part and upper end right part have all been opened two screw holes, the mounting bracket passes through the installation screw and installs in protection box upper end. The electromagnetic shielding glass on the anti-interference device is fixed at the upper end of the multilayer circuit board by mounting screws on a mounting rack, the electromagnetic shielding glass is a light-transmitting shielding device capable of preventing electromagnetic radiation and electromagnetic interference, and relates to the fields of optics, electrics, metal materials, chemical raw materials, glass, machinery and the like, the light-transmitting shielding device is widely applied to the field of electromagnetic compatibility, the shielding performance is 35-60 dB under the condition that the visible light transmittance is 50% and the frequency is 1GHz by adding the interference effect of an electrolyte membrane on the performance of reflecting electromagnetic waves by the electrolyte membrane, meanwhile, the light-transmitting shielding device can absorb the energy of the electromagnetic waves projected on the surface of the light-transmitting device and has the advantages of small reflection, refraction and scattering by using a heat-conducting and wave-absorbing material of TIF900B-30 series, the light-transmitting device has the advantages of light weight, small possibility of breakage, wide absorption frequency band, good absorption performance, strong weather resistance, ageing resistance, easiness in bending, easiness in processing and cutting, humidity resistance, pressure resistance, long-term use, no toxicity, environmental protection and the like, the anti-interference of the multilayer circuit board is improved, and the anti-interference of the multilayer circuit board can be protected by the electromagnetic shielding glass and the protection box, so that the external collision of the light-transmitting device is reduced.
Preferably, chucking damping device includes the backup pad, the backup pad is provided with two, two a set of spring post is all installed to the one end that the backup pad corresponds, and is two sets of the tight backing plate of clamp is all installed to the one end that the spring post corresponds, no. one circuit board, no. two circuit boards and No. three circuit boards are installed and are pressed from both sides between the backing plate two install respectively on protection box left inner wall and right inner wall. The multilayer circuit board is placed between two clamping base plates on the clamping damping device, and the spring columns on two sides of the clamping base plates are stressed and shrunk along with the clamping base plates, so that the multilayer circuit board is clamped in the protection box, and a certain damping and buffering effect can be achieved on the multilayer circuit board.
Preferably, fixing device includes the mount, the mount is provided with two, two a set of fixed plate is all installed to the one end that the mount was carried on the back mutually, and is two sets of fixed screw is all installed to the fixed plate upper end, two the mount is installed respectively at protection box left end and right-hand member.
Preferably, the mounting screw corresponds to the screw hole up and down.
Preferably, the fixing plate is L-shaped.
Compared with the prior art, the utility model discloses following beneficial effect has:
1. the electromagnetic shielding glass on the anti-interference device is fixed at the upper end of the multilayer circuit board by mounting screws on a mounting rack, the electromagnetic shielding glass is a light-transmitting shielding device capable of preventing electromagnetic radiation and electromagnetic interference, and relates to the fields of optics, electrics, metal materials, chemical raw materials, glass, machinery and the like, the light-transmitting shielding device is widely applied to the field of electromagnetic compatibility, the shielding performance of the light-transmitting shielding device is 35-60 dB under the condition that the visible light transmittance is 50% and the frequency is 1GHz by adding the interference effect of an electrolyte membrane to the performance of reflecting electromagnetic waves of the electric membrane, meanwhile, the light-transmitting device can absorb the energy of the electromagnetic waves projected to the surface of the light-transmitting device and has the advantages of small reflection, refraction and scattering by using a heat conduction and absorption material (the type is TIF900B-30 series of heat conduction and wave absorption materials), the light-transmitting device has the advantages of light weight, difficulty in breaking, wide absorption frequency band, good absorption performance, strong weather resistance, ageing resistance, easiness in bending, easiness in processing and cutting, humidity resistance, pressure resistance, long-term use, no toxicity, environmental protection and the like, so that the anti-interference of the multilayer circuit board is improved.
2. The multilayer circuit board is placed between two clamping base plates on the clamping damping device, and the spring columns on two sides of the clamping base plates are stressed and shrunk along with the clamping base plates, so that the multilayer circuit board is clamped in the protection box, and a certain damping and buffering effect can be achieved on the multilayer circuit board.
Drawings
Fig. 1 is a schematic view of an overall structure of a multi-layer circuit board for preventing interference according to the present invention;
fig. 2 is a schematic diagram of the overall structure of an anti-jamming device of the anti-jamming multilayer circuit board of the present invention;
fig. 3 is a schematic view of the overall structure of the clamping and damping device of the anti-interference multilayer circuit board of the present invention;
fig. 4 is a schematic view of the overall structure of the fixing device of the anti-interference multilayer circuit board of the present invention.
In the figure: 1. a protective case; 2. an anti-jamming device; 3. clamping the damping device; 4. a fixing device; 5. a first circuit board; 6. a second circuit board; 7. a third circuit board; 20. a mounting frame; 21. electromagnetic shielding glass; 22. mounting screws; 23. a heat-conducting wave-absorbing plate; 24. a screw hole; 30. a support plate; 31. a spring post; 32. clamping the base plate; 40. a fixed mount; 41. a fixing plate; 42. and fixing the screw.
Detailed Description
In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element to which the reference is made must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, and for example, "connected" may be either fixedly connected or detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in fig. 1-4, an anti-interference multilayer circuit board comprises a protection box 1 and a first circuit board 5, wherein a fixing device 4 is installed at the left end and the right end of the protection box 1 together, a clamping damping device 3 is installed at the left inner wall and the right inner wall of the protection box 1 together, an anti-interference device 2 is installed at the upper end of the protection box 1, a second circuit board 6 is installed at the upper end of the first circuit board 5, a third circuit board 7 is installed at the upper end of the second circuit board 6, and the first circuit board 5, the second circuit board 6 and the third circuit board 7 are installed in the protection box 1 through the clamping damping device 3.
The anti-interference device 2 comprises a mounting frame 20, electromagnetic shielding glass 21 is mounted at the upper end of the mounting frame 20, two mounting screws 22 are mounted on the left portion and the right portion of the upper end of the mounting frame 20, a heat conduction and wave absorption plate 23 is mounted at the lower end of the first circuit board 5, two screw holes 24 are formed in the left portion and the right portion of the upper end of the protection box 1, and the mounting frame 20 is mounted at the upper end of the protection box 1 through the mounting screws 22; the mounting screws 22 are vertically aligned with the screw holes 24. The electromagnetic shielding glass 21 on the anti-interference device 2 is fixed at the upper end of the multilayer circuit board by a mounting screw 22 on a mounting rack 20, the electromagnetic shielding glass 21 is a light-transmitting shielding device capable of preventing electromagnetic radiation and electromagnetic interference, and relates to the fields of optics, electrics, metal materials, chemical raw materials, glass, machinery and the like, the light-transmitting shielding device is widely applied to the field of electromagnetic compatibility, the shielding performance is 35-60 dB under the condition that the visible light transmittance is 50% and the frequency is 1GHz by adding the interference effect of an electrolyte membrane on the performance of reflecting electromagnetic waves through an electric membrane, meanwhile, the anti-interference performance of the circuit board is improved by a heat conduction wave absorption plate 23 (the model is TIF900B-30 series heat conduction wave absorption materials which can absorb the electromagnetic wave energy projected to the surface of the light-transmitting device and have very small reflection, refraction and scattering, and the materials have the advantages of light relative weight, difficult breakage, wide absorption frequency band, good absorption performance, strong weather resistance, ageing resistance, easy bending, easy processing and cutting, humidity resistance, pressure resistance, long-time use, no toxicity, environmental protection and the like), and the anti-interference performance of the multilayer circuit board is improved, and the external impact of the electromagnetic shielding glass 21 and the protection box 1 can be reduced.
Chucking damping device 3 includes backup pad 30, and backup pad 30 is provided with two, and a set of spring post 31 is all installed to the one end that two backup pad 30 correspond, and the tight backing plate 32 of clamp is all installed to the one end that two sets of spring posts 31 correspond, and a circuit board 5, no. two circuit boards 6 and No. three circuit boards 7 are installed and are being pressed from both sides between the backing plate 32 two, and two backup pads 30 are installed respectively on 1 left inner wall of protection box and right inner wall. The multilayer circuit board is placed between two clamping base plates 32 on the clamping damping device 3, and the spring columns 31 on two sides of the clamping base plates 32 are stressed and shrunk along with the clamping base plates, so that the multilayer circuit board is clamped in the protection box 1, and a certain damping and buffering effect can be achieved on the multilayer circuit board.
The fixing device 4 comprises two fixing frames 40, one end of each fixing frame 40, which is opposite to the other end, is provided with a group of fixing plates 41, the upper ends of the two groups of fixing plates 41 are provided with fixing screws 42, and the two fixing frames 40 are respectively arranged at the left end and the right end of the protection box 1; the fixing plate 41 has an L-shape.
It should be noted that the utility model relates to an anti-interference multilayer circuit board, firstly, the multilayer circuit board is placed between two clamping backing plates 32 on a clamping damping device 3, at the moment, the spring columns 31 on both sides of the clamping backing plates 32 are stressed and contracted, thereby the multilayer circuit board is clamped in a protection box 1, thereby the multilayer circuit board can play a certain damping and buffering role, then the fixing screws 42 on a fixing device 4 are rotated, thereby the device is fixed at a proper position, finally, the electromagnetic shielding glass 21 on an anti-interference device 2 is fixed at the upper end of the multilayer circuit board by the mounting screws 22 on a mounting rack 20, the electromagnetic shielding glass 21 is a light transmission shielding device for preventing electromagnetic radiation and electromagnetic interference, which relates to a plurality of fields of optics, electrics, metal materials, chemical raw materials, glass, machinery and the like, and is widely used in the field of electromagnetic compatibility, the shielding performance of the electromagnetic wave reflecting electric film is 35-60 dB under the conditions that the visible light transmittance is 50% and the frequency is 1GHz, and the shielding performance of the electromagnetic wave reflecting electric film is 35-60 dB, meanwhile, the electromagnetic wave energy projected to the surface of the electromagnetic wave reflecting electric film can be absorbed by a heat-conducting wave absorbing plate 23 (the type is TIF900B-30 series heat-conducting wave absorbing materials, and the materials have the advantages of light weight, low possibility of being broken, wide absorption frequency band, good absorption performance, high weather resistance, ageing resistance, easiness in bending, easiness in processing and cutting, moisture resistance, pressure resistance, long-term use, no toxicity, environmental protection and the like), so that the anti-interference performance of the circuit board is improved, and meanwhile, the electromagnetic shielding glass 21 and the protective box 1 can play a certain role in protecting the multilayer circuit board and reduce external collision.
The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (6)
1. A multilayer circuit board of jam-proof, includes protection box (1) and circuit board (5), its characterized in that: protection box (1) left end and right-hand member install fixing device (4) jointly, protection box (1) left side inner wall and right side inner wall install chucking damping device (3) jointly, anti jamming unit (2) are installed to protection box (1) upper end, no. two circuit board (6) are installed to No. one circuit board (5) upper end, no. three circuit board (7) are installed to No. two circuit board (6) upper end, no. one circuit board (5), no. two circuit board (6) and No. three circuit board (7) are installed in protection box (1) through chucking damping device (3).
2. The tamper-proof multilayer wiring board of claim 1, wherein: anti jamming unit (2) include mounting bracket (20), electromagnetic shield glass (21) are installed to mounting bracket (20) upper end, two installation screws (22) are all installed to mounting bracket (20) upper end left part and upper end right part, no. one circuit board (5) lower extreme is installed the heat conduction and is inhaled wave plate (23), two screw holes (24) have all been opened to protection box (1) upper end left part and upper end right part, mounting bracket (20) are installed in protection box (1) upper end through installation screw (22).
3. The tamper-proof multilayer circuit board of claim 1, wherein: chucking damping device (3) are including backup pad (30), backup pad (30) are provided with two, two a set of spring post (31) are all installed to the one end that backup pad (30) correspond, and are two sets of tight backing plate (32) are all installed to the one end that spring post (31) correspond, install between two tight backing plate (32) of clamp for one number circuit board (5), no. two circuit board (6) and No. three circuit board (7), two install respectively on protection box (1) left inner wall and right inner wall backup pad (30).
4. The tamper-proof multilayer wiring board of claim 1, wherein: fixing device (4) are including mount (40), mount (40) are provided with two, two a set of fixed plate (41) are all installed to the one end that mount (40) carried on the back mutually, and are two sets of fixed screw (42) are all installed to fixed plate (41) upper end, two mount (40) are installed respectively at protection box (1) left end and right-hand member.
5. A tamper-proof multilayer wiring board according to claim 2, wherein: the mounting screws (22) correspond to the screw holes (24) up and down.
6. The tamper-proof multilayer wiring board of claim 4, wherein: the fixing plate (41) is L-shaped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221551958.6U CN218006692U (en) | 2022-06-21 | 2022-06-21 | Anti-interference multilayer circuit board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221551958.6U CN218006692U (en) | 2022-06-21 | 2022-06-21 | Anti-interference multilayer circuit board |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218006692U true CN218006692U (en) | 2022-12-09 |
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ID=84293862
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221551958.6U Active CN218006692U (en) | 2022-06-21 | 2022-06-21 | Anti-interference multilayer circuit board |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218006692U (en) |
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2022
- 2022-06-21 CN CN202221551958.6U patent/CN218006692U/en active Active
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