CN213907017U - Electromagnetic wave shielding thin film circuit board - Google Patents
Electromagnetic wave shielding thin film circuit board Download PDFInfo
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- CN213907017U CN213907017U CN202022552589.XU CN202022552589U CN213907017U CN 213907017 U CN213907017 U CN 213907017U CN 202022552589 U CN202022552589 U CN 202022552589U CN 213907017 U CN213907017 U CN 213907017U
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- shielding layer
- circuit board
- shielding
- thin film
- electromagnetic wave
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Abstract
The utility model provides an electromagnetic wave shielding nature film circuit board relates to film circuit board technical field. The device comprises a circuit carrier, a first shielding layer and a second shielding layer, wherein a lining plate is arranged at the top of the circuit carrier, the first shielding layer is arranged at the top of the lining plate, the second shielding layer is arranged at the bottom of the circuit carrier, and grounding columns are arranged at four corners of the bottom of the second shielding layer; the soft wrapping edges are arranged around the thin film circuit board, so that the original property of the thin film circuit board is not influenced, and the thin film is protected from being torn easily.
Description
Technical Field
The utility model relates to a film circuit board technical field specifically is an electromagnetic wave shielding nature film circuit board.
Background
The film circuit board is a flexible circuit board made of a PET film as a base material, has flexibility, is widely applied to electronic mechanical automation control, instruments and meters, medical equipment, consumer electronics, computers, communication, metering, household appliances, toys and the like, and has the advantages of good flexibility, light weight, stable transmission performance, impact resistance, low price, environmental protection and the like. The special price is only half of that of the common rigid circuit board (PCB). The key is used at the key position of the product, so that the product cost can be reduced.
The inside circuit device of current film circuit board is all comparatively sensitive, but lacks electromagnetic shield's part, leads to circuit device to damage easily, malfunctioning or not accurate, and secondly, film circuit board's material is comparatively soft, tears the corner easily when dismantling the maintenance, and then damages the device.
SUMMERY OF THE UTILITY MODEL
Technical problem to be solved
To prior art not enough, the utility model provides an electromagnetic wave shielding nature film circuit board to solve the problem that proposes in the above-mentioned background art.
(II) technical scheme
In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: the utility model provides an electromagnetic wave shielding nature film circuit board, includes circuit carrier, shielding layer one and shielding layer two, circuit carrier top is provided with the welt, the welt top is provided with shielding layer one, circuit carrier bottom is provided with shielding layer two, shielding layer two bottom four corners department is provided with the ground connection post.
Preferably, the welt with the circuit carrier is fixed through the mode of splicing, shielding layer one is pressed through the draw-in groove card in the welt, shielding layer two with the circuit carrier is fixed through the mode of splicing, the ground post with shielding layer two pass through draw-in groove fixed mounting.
Preferably, a lead belt is packaged inside the circuit carrier, a central processing unit is welded at one end of the lead belt, the central processing unit is welded with the circuit carrier, and an external flat cable is welded at one end, far away from the central processing unit, of the lead belt.
Preferably, a contact pressing column is formed inside the lining plate, and the contact pressing column is electrically connected with the circuit carrier and the lead.
Preferably, the peripheral wall of the circuit carrier is wrapped with a soft wrapping edge, and an electromagnetic shielding coil is clamped and pressed in one inner part of the shielding layer.
Preferably, a metal shielding net is clamped and pressed inside the second shielding layer, the metal shielding net is in lap joint with the grounding post, and a metal conductive material is arranged inside the grounding post.
Preferably, a film panel is installed on the top of the lining plate, and a contact film pad is installed inside the film panel through a clamping groove.
The utility model provides an electromagnetic wave shielding nature film circuit board, its beneficial effect who possesses as follows:
the device can effectively carry out effective electromagnetic shielding protection on electronic devices in the thin film circuit board by arranging the first shielding layer, the second shielding layer, the electromagnetic shielding coil, the metal shielding net and the grounding column, so that the electronic devices can work safely and efficiently; the soft wrapping edges are arranged around the thin film circuit board, so that the original property of the thin film circuit board is not influenced, and the thin film is protected from being torn easily.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of the present invention with the thin film panel removed;
FIG. 3 is a schematic structural view of the present invention with the thin film panel and the first shielding layer removed;
fig. 4 is a schematic structural diagram of the circuit carrier of the present invention;
fig. 5 is a front view of the present invention;
FIG. 6 is an exploded view of a second shielding layer of the present invention;
FIG. 7 is a schematic view of the connection between the contact film pad and the film panel according to the present invention;
in the figure: 1. a line carrier; 2. a lead tape; 3. a central processing unit; 4. soft edge covering; 5. a liner plate; 6. contacting the pressing column; 7. a first shielding layer; 8. an electromagnetic shielding coil; 9. a second shielding layer; 10. a ground post; 11. a metal shielding mesh; 12. a film panel; 13. a contact membrane pad; 14. is externally connected with a flat cable.
Detailed Description
The embodiment of the utility model provides an electromagnetic wave shielding nature film circuit board, as shown in fig. 1-7, including circuit carrier 1, shielding layer 7 and shielding layer two 9, circuit carrier 1 top is provided with welt 5, and welt 5 top is provided with shielding layer one 7, and circuit carrier 1 bottom is provided with shielding layer two 9, and shielding layer two 9 bottom four corners department is provided with ground connection post 10, and welt 5 forms a protection space for inner member for strutting arrangement, and shielding layer one 7 and shielding layer two 9 are transparent material.
The implementation mode is specifically as follows: the device is particularly used in the keyboard, and is communicated with the keycap through the film panel 12 and the contact film pad 13 to transmit operation signals for operating the keyboard.
The parcel has the software to bordure 4 on the 1 peripheral wall of circuit carrier, shielding layer 7 inside card is pressed and is had electromagnetic shield coil 8, shielding layer two 9 inside cards are pressed and are had metallic shield net 11, metallic shield net 11 and the 10 overlap joints of ground connection post, the inside metal conducting material that has of ground connection post 10, film panel 12 is installed at 5 tops of welt, film panel 12 is inside installs contact film pad 13 through the draw-in groove, the software is bordured 4 and is had the crack control, it is soft and ductility, easy to assemble, metallic shield net 11 is the aluminiferous material, the weight of reducing device.
The working principle is as follows: when the device is used, the device is connected with a control end of a driving device through an external flat cable 14, then a grounding column 10 is connected with a grounding component in a shell, metal in the grounding column 10 is in contact with a metal shielding net 11, meanwhile, the metal shielding net 11 is communicated with an electromagnetic shielding coil 8 through a conducting wire packaged in the device, when electromagnetic waves surround the device, the electromagnetic shielding coil 8 and the metal shielding net 11 absorb electromagnetic waves to generate current which is transmitted to the ground, and the purpose of shielding the normal work of internal components of electromagnetic protection is achieved, in addition, when the device is normally disassembled and maintained, the device is soft in texture, corners are easily scratched by the shell or external sharp instruments, the circuit board is abnormal in use, at the moment, if the soft edge cover 4 is a component for protection, the accidents can be prevented, the soft edge cover 4 is made of different materials from those of a thin film circuit board, but has the same softness, the use property of the thin film circuit board is not influenced.
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 (7)
1. An electromagnetic wave shielding nature film circuit board, includes circuit carrier (1), shielding layer one (7) and shielding layer two (9), its characterized in that: line carrier (1) top is provided with welt (5), welt (5) top is provided with shielding layer one (7), line carrier (1) bottom is provided with shielding layer two (9), shielding layer two (9) bottom four corners department is provided with ground connection post (10).
2. The electromagnetic wave shielding thin film circuit board of claim 1, characterized in that: welt (5) with circuit carrier (1) is fixed through the mode of cementing, shielding layer (7) are in through the draw-in groove joint pressure in welt (5), shielding layer two (9) with circuit carrier (1) is fixed through the mode of cementing, earthing post (10) with shielding layer two (9) are through draw-in groove fixed mounting.
3. The electromagnetic wave shielding thin film circuit board of claim 2, characterized in that: the circuit carrier is characterized in that a lead belt (2) is packaged inside the circuit carrier (1), a central processing unit (3) is welded at one end of the lead belt (2), the central processing unit (3) is welded with the circuit carrier (1), and an external flat cable (14) is welded at one end, far away from the central processing unit (3), of the lead belt (2).
4. The electromagnetic wave shielding thin film circuit board of claim 3, characterized in that: the contact pressing column (6) is formed inside the lining plate (5), and the contact pressing column (6) is electrically connected with the circuit carrier (1) and the lead belt (2).
5. The electromagnetic wave shielding thin film circuit board of claim 4, characterized in that: the circuit carrier is characterized in that the peripheral wall of the circuit carrier (1) is wrapped with a soft wrapping edge (4), and an electromagnetic shielding coil (8) is clamped and pressed inside the shielding layer I (7).
6. The electromagnetic wave shielding thin film circuit board of claim 1, characterized in that: and a metal shielding net (11) is clamped and pressed inside the second shielding layer (9), the metal shielding net (11) is in lap joint with the grounding column (10), and a metal conductive material is arranged inside the grounding column (10).
7. The electromagnetic wave shielding thin film circuit board of claim 5, characterized in that: film panel (12) are installed at welt (5) top, contact film pad (13) are installed through the draw-in groove to film panel (12) inside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022552589.XU CN213907017U (en) | 2020-11-07 | 2020-11-07 | Electromagnetic wave shielding thin film circuit board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022552589.XU CN213907017U (en) | 2020-11-07 | 2020-11-07 | Electromagnetic wave shielding thin film circuit board |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213907017U true CN213907017U (en) | 2021-08-06 |
Family
ID=77117492
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022552589.XU Active CN213907017U (en) | 2020-11-07 | 2020-11-07 | Electromagnetic wave shielding thin film circuit board |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213907017U (en) |
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2020
- 2020-11-07 CN CN202022552589.XU patent/CN213907017U/en active Active
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