CN210381456U - Flexible circuit board with novel reinforcement structure - Google Patents
Flexible circuit board with novel reinforcement structure Download PDFInfo
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- CN210381456U CN210381456U CN201921253150.8U CN201921253150U CN210381456U CN 210381456 U CN210381456 U CN 210381456U CN 201921253150 U CN201921253150 U CN 201921253150U CN 210381456 U CN210381456 U CN 210381456U
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- circuit board
- board body
- insulating substrate
- protective layer
- copper foil
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Abstract
The utility model discloses a flexible line way board with novel reinforcement structure, including the circuit board body, the circuit board body includes copper foil, insulating substrate, reinforcing plate and first protective layer and second protective layer, the copper foil is located insulating substrate's lower extreme and is equipped with reinforcement mechanism, the reinforcing plate is located insulating substrate's upper end, first protective layer is located insulating substrate's upper end, the second protective layer is located the lower extreme of copper foil, the outward flange package of circuit board body is equipped with the anti-tear layer, be equipped with on the circuit board body and connect a piece, it is equipped with a plurality of two-sided golden fingers to connect on the piece. The utility model discloses it is rational in infrastructure, not only can protect the edge of circuit board body, prevent that its edge from being torn and the edge splits the layer, through the shock resistance intensity who sets up reinforcing plate greatly increased circuit board body, also can increase the stability after the welding of two-sided golden finger, make it be difficult for opening the welding.
Description
Technical Field
The utility model relates to a flexible line way board technical field especially relates to flexible line way board with novel reinforcement structure.
Background
The flexible circuit board is the only solution to meet the requirements of miniaturization and movement of electronic products; the device can be freely bent, wound and folded, can be randomly arranged according to the space layout requirement, and can be randomly moved and stretched in a three-dimensional space, so that the integration of component assembly and wire connection is realized; the flexible circuit board can greatly reduce the volume and the weight of the electronic product, and is suitable for the development of the electronic product towards high density, miniaturization and high reliability.
At the present stage, the local reinforcement of the flexible circuit board is insufficient, and under certain specific conditions, certain parts which are often impacted are easily damaged; secondly, because the flexible board is mainly used in the occasion that needs buckle, produce defects such as crazing line, open welding easily, therefore we have designed the flexible circuit board that has novel reinforcement structure and have solved above problem.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the shortcoming that exists among the prior art, and the flexible line way board that has novel reinforcement structure that proposes, it not only can protect the edge of circuit board body, prevents that its edge from being torn and the marginal split layer, through the shock resistance who sets up reinforcing plate greatly increased circuit board body, also can increase the stability after the two-sided golden finger welding, makes it be difficult for opening the welding.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
flexible line way board with novel reinforcement structure, including the circuit board body, the circuit board body includes copper foil, insulating substrate, reinforcing plate and first protective layer and second protective layer, the copper foil is located insulating substrate's lower extreme and is equipped with reinforcement mechanism, the reinforcing plate is located insulating substrate's upper end, first protective layer is located insulating substrate's upper end, the second protective layer is located the lower extreme of copper foil, the outward flange package of circuit board body is equipped with the anti-tear layer, be equipped with on the circuit board body and connect a piece, it is equipped with a plurality of two-sided golden finger on a piece to connect, and is a plurality of all be equipped with a plurality of soldering tin holes on the two-sided golden finger, and is a plurality of all run through on the two-sided golden finger and be equipped with a plurality.
Preferably, the reinforcing mechanism comprises a plurality of hemispherical fixed blocks fixed on the copper foil, hemispherical grooves corresponding to the hemispherical fixed blocks are formed in the insulating substrate, and the hemispherical fixed blocks extend to the opposite hemispherical grooves.
Preferably, the copper foil and the insulating substrate are connected by a bonding sheet.
Preferably, the material of reinforcing plate is epoxy glass fiber cloth board.
Preferably, the first protection layer is made of thermosetting polyimide.
Preferably, the second protective layer is made of a polyimide film.
Preferably, the material of the anti-tear layer is a polytetrafluoroethylene film.
Compared with the prior art, the utility model, its beneficial effect does:
the utility model greatly increases the connection stability between the copper foil and the insulating substrate through the reinforcing mechanism, and has good stability; the reinforcing plate can support and reinforce the insulating substrate, so that the hardness of the circuit board body is increased, and microcracks are not easy to generate; the capacity and the contact area of soldering tin between the double-sided golden finger and the bonding pad can be increased through the through hole, and the soldering tin can form a cylinder in the through hole, so that the stability of the double-sided golden finger and the bonding pad after welding is greatly increased, and the circuit board body is not easy to open and weld; the edge that can the circuit board body through the anti-tear layer protects, also can prevent to stick up between the inside layer of circuit board body, has also increased the circuit board body resistance to tearing.
To sum up, the utility model discloses rational in infrastructure not only can protect the edge of circuit board body, prevents that its edge from being torn and the marginal layer of splitting, through the shock resistance who sets up reinforcing plate greatly increased circuit board body, also can increase the stability after the welding of two-sided golden finger, makes it be difficult for opening the welding.
Drawings
Fig. 1 is a structural layer diagram of a circuit board body in a flexible circuit board with a novel reinforcement structure provided by the present invention;
FIG. 2 is an enlarged view of the structure at A in FIG. 1;
fig. 3 is an overall plan view of the flexible printed circuit with the novel reinforcing structure according to the present invention;
fig. 4 is a schematic view of a connection of a partial structure in a flexible printed circuit board with a novel reinforcement structure according to the present invention.
In the figure: the circuit board comprises a circuit board body 1, a copper foil 2, an insulating substrate 3, a reinforcing plate 4, a first protective layer 5, a second protective layer 6, a hemispherical fixing block 7, a hemispherical groove 8, a tearing-proof layer 9, a connecting support piece 10, a soldering tin hole 11, a double-sided golden finger 12 and a through hole 13.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
Referring to fig. 1-4, the flexible printed circuit board with the novel reinforcing structure comprises a printed circuit board body 1, wherein the printed circuit board body 1 comprises a copper foil 2, an insulating substrate 3, a reinforcing plate 4, a first protective layer 5 and a second protective layer 6, the insulating substrate 3 is a flexible substrate, and the material is a polyester film.
The copper foil 2 is positioned at the lower end of the insulating substrate 3 and is provided with a reinforcing mechanism, the reinforcing mechanism comprises a plurality of hemispherical fixed blocks 7 fixed on the copper foil 2, and the hemispherical fixed blocks 7 can be plastic particles and are connected with the copper foil 2 through adhesive; be equipped with on insulating substrate 3 with the corresponding hemispherical recess 8 of a plurality of hemispherical fixed blocks 7, a plurality of hemispherical fixed blocks 7 all extend to relative hemispherical recess 8, and copper foil 2 is connected through the bonding sheet with insulating substrate 3, and the bonding sheet is laid on hemispherical fixed block 7 surface and is extended to in the hemispherical recess 8, so the steadiness of being connected between greatly increased copper foil 2 and the insulating substrate 3.
The reinforcing plate 4 is positioned at the upper end of the insulating substrate 3, and the material of the reinforcing plate 4 is an epoxy glass fiber cloth plate, so that the reinforcing effect can be supported on the insulating substrate 3, the hardness of the circuit board body 1 is increased, and the circuit board body is not easy to damage; the first protective layer 5 is positioned at the upper end of the insulating substrate 3, the material of the first protective layer 5 is thermosetting polyimide, and the first protective layer 5 is connected with the insulating substrate 3 through a bonding sheet; the second protective layer 6 is located at the lower end of the copper foil 2, the second protective layer 6 is connected with the copper foil 2 through a bonding sheet, and the second protective layer 6 is made of a polyimide film.
The outer edge of the circuit board body 1 is wrapped with the anti-tear layer 9, the anti-tear layer 9 is made of a polytetrafluoroethylene film, and the anti-tear layer 9 is wrapped outside the edge of the circuit board body 1 through an adhesive sheet and is pressed, so that the edge of the circuit board body 1 can be protected, and the layer inside the circuit board body 1 can be prevented from tilting; be equipped with on circuit board body 1 and connect a piece 10, be equipped with a plurality of two-sided golden finger 12 on connecting a piece 10, all be equipped with a plurality of soldering tin holes 11 on a plurality of two-sided golden finger 12, all run through on a plurality of two-sided golden finger 12 and be equipped with a plurality of through-holes 13, can increase the capacity and the area of contact of soldering tin between two-sided golden finger 12 and the pad through-hole 13, and soldering tin can form the cylinder in through-hole 13, the welded steadiness between the two-sided golden finger 12 of greatly increased and the pad, make circuit board body 1 difficult open the welding.
In the utility model, the connection stability between the copper foil 2 and the insulating substrate 3 is greatly increased through the reinforcing mechanism, and the stability is good; the reinforcing plate 4 can support and reinforce the insulating substrate 3, so that the hardness of the circuit board body 1 is increased, and microcracks are not easy to generate; the capacity and the contact area of soldering tin between the double-sided golden finger 12 and the pad can be increased through the through hole 13, and the soldering tin can form a cylinder in the through hole 13, so that the stability after welding between the double-sided golden finger 12 and the pad is greatly increased, and the circuit board body 1 is not easy to open and weld; the edge of the circuit board body 1 can be protected through the anti-tear layer 9, the tilting between layers inside the circuit board body 1 can be prevented, and the tearing resistance of the circuit board body 1 is also improved.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (7)
1. The flexible circuit board with the novel reinforcement structure comprises a circuit board body (1) and is characterized in that the circuit board body (1) comprises a copper foil (2), an insulating substrate (3), a reinforcing plate (4), a first protective layer (5) and a second protective layer (6), wherein the copper foil (2) is positioned at the lower end of the insulating substrate (3) and is provided with a reinforcement mechanism, the reinforcing plate (4) is positioned at the upper end of the insulating substrate (3), the first protective layer (5) is positioned at the upper end of the insulating substrate (3), the second protective layer (6) is positioned at the lower end of the copper foil (2), an anti-tear layer (9) is wrapped at the outer edge of the circuit board body (1), a connecting support piece (10) is arranged on the circuit board body (1), a plurality of double-sided golden fingers (12) are arranged on the connecting support piece (10), and a plurality of soldering tin holes (11) are formed in the double-sided golden fingers (12), a plurality of through holes (13) are formed in the double-sided golden fingers (12) in a penetrating mode.
2. The flexible printed circuit board with novel reinforcing structure according to claim 1, wherein the reinforcing structure comprises a plurality of hemispherical fixing blocks (7) fixed on the copper foil (2), the insulating substrate (3) is provided with hemispherical grooves (8) corresponding to the plurality of hemispherical fixing blocks (7), and each of the plurality of hemispherical fixing blocks (7) extends to the corresponding hemispherical groove (8).
3. The flexible printed circuit board with novel reinforcing structure of claim 1, wherein the copper foil (2) is connected with the insulating substrate (3) by an adhesive sheet.
4. The flexible printed circuit with novel reinforcing structure of claim 1, wherein the material of the reinforcing plate (4) is epoxy fiberglass cloth.
5. The flexible printed circuit with novel reinforcing structure of claim 1, wherein the first protective layer (5) is made of thermosetting polyimide.
6. The flexible printed circuit with a novel reinforcing structure as claimed in claim 1, wherein the second protective layer (6) is made of polyimide film.
7. The flexible printed circuit with novel reinforcing structure of claim 1, wherein the tear-resistant layer (9) is made of teflon film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921253150.8U CN210381456U (en) | 2019-08-05 | 2019-08-05 | Flexible circuit board with novel reinforcement structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921253150.8U CN210381456U (en) | 2019-08-05 | 2019-08-05 | Flexible circuit board with novel reinforcement structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210381456U true CN210381456U (en) | 2020-04-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921253150.8U Active CN210381456U (en) | 2019-08-05 | 2019-08-05 | Flexible circuit board with novel reinforcement structure |
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| Country | Link |
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| CN (1) | CN210381456U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111901962A (en) * | 2020-08-26 | 2020-11-06 | 深圳市腾鑫精密电子芯材科技有限公司 | Double-layer high-strength flexible circuit board with inner reinforcing mechanism |
| CN112996235A (en) * | 2021-02-10 | 2021-06-18 | 上海天马有机发光显示技术有限公司 | Flexible circuit board, display panel and insulating film |
-
2019
- 2019-08-05 CN CN201921253150.8U patent/CN210381456U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111901962A (en) * | 2020-08-26 | 2020-11-06 | 深圳市腾鑫精密电子芯材科技有限公司 | Double-layer high-strength flexible circuit board with inner reinforcing mechanism |
| CN111901962B (en) * | 2020-08-26 | 2022-03-11 | 深圳市腾鑫精密电子芯材科技有限公司 | Double-layer high-strength flexible circuit board with inner reinforcing mechanism |
| CN112996235A (en) * | 2021-02-10 | 2021-06-18 | 上海天马有机发光显示技术有限公司 | Flexible circuit board, display panel and insulating film |
| CN112996235B (en) * | 2021-02-10 | 2022-09-27 | 武汉天马微电子有限公司 | Flexible circuit board, display panel and insulating film |
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