CN212992670U - Flexible circuit board - Google Patents
Flexible circuit board Download PDFInfo
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- CN212992670U CN212992670U CN201821564845.3U CN201821564845U CN212992670U CN 212992670 U CN212992670 U CN 212992670U CN 201821564845 U CN201821564845 U CN 201821564845U CN 212992670 U CN212992670 U CN 212992670U
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- circuit board
- printed circuit
- flexible printed
- force reducing
- tying
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Abstract
The utility model discloses a flexible printed circuit board, be provided with the subtracting structure in the portion of not tying up with flexible printed circuit board overlap joint product contact, the overlap joint product that has this flexible printed circuit board leads to not tying up the portion in the production transportation and is torn or need buckle the operation to this flexible printed circuit board and lead to not tying up the portion and receive the exogenic action when, can reduce the power transmission area that the subtracting structure that sets up in the portion of not tying up reduces not tying up the portion, and then can reduce the power of not tying up the portion to binding portion transmission, the easy pine of flexible printed circuit board has been solved and has been taken off, tear and break the problem, compare with traditional flexible printed circuit board structure among the prior art, and then can strengthen the overlap joint effect of flexible printed circuit board.
Description
Technical Field
The utility model relates to a circuit board application, in particular to flexible printed circuit board.
Background
The flexible printed circuit board is a highly reliable circuit board made of polyimide or polyester film as a substrate, the flexible printed circuit board can be bent and easily pulled, the flexible printed circuit board generally needs to be lapped with related products for use, fig. 1 is a schematic diagram of a flexible printed circuit board structure provided by the prior art, as shown in fig. 1, the flexible printed circuit board structure comprises an unbounded part 10 and a bound part 11, the bound part 11 needs to be adhered to the product 1 lapped with the flexible printed circuit board, when the flexible printed circuit board needs to be bent or the unbounded part 10 inevitably pulls during production or transportation of the product 1 lapped with the flexible printed circuit board, force on the unbounded part 10 directly acts on the bound part 11, the bound part 11 of the flexible printed circuit board is easy to loosen, tear off the product 1 lapped with the flexible printed circuit board, and the bound part 11 may break, thereby affecting the overlapping effect of the binding portion 11.
Therefore, the problem that how to overcome the problem that the conventional flexible printed circuit is easy to loosen, tear and break, and the resulting overlapping effect is poor is a problem to be solved by those skilled in the art.
SUMMERY OF THE UTILITY MODEL
The embodiment of the application provides a flexible printed circuit board to solve the problem that the traditional flexible printed circuit board is easy to loosen, tear and break in the prior art, and then the lapping effect is poor.
In order to solve the above technical problem, the utility model provides a flexible printed circuit, include:
the binding part is connected with the binding part and is not contacted with the flexible circuit board lapped product;
the unbound portion is provided with a force reducing structure for reducing a force transmitted by the unbound portion to the bound portion.
Preferably, a distance between any point on the force reducing structure and any point on the binding portion is at least a first threshold value.
Preferably, the force reducing structure is a semicircular structure.
Preferably, the semicircular structure is located at one side of the unbound portion.
Preferably, the semicircular structures are two in particular and are located on any two sides of the unbound portion which are not adjacent to each other.
Preferably, the force reducing structure is circular in particular.
Preferably, the size of the force reducing structure is greater than a second threshold value, and the second threshold value is set according to the size of the unbound portion.
Preferably, the force reducing structure is rectangular in shape.
Preferably, the unbound portion further comprises a finishing layer.
Preferably, the binding part is adhered to the flexible printed circuit board overlapping product through an adhesive, and the adhesive is a UV type and/or a thermosetting type adhesive.
Compared with the prior art, the utility model provides a flexible printed circuit board, be provided with on the portion of not tying up with flexible printed circuit board overlap joint product contact and subtract the power structure, the overlap joint product that has this flexible printed circuit board leads to not tying up the portion and is torn or need buckle the operation to this flexible printed circuit board and lead to not binding up the portion and receive the exogenic action when pasting, can reduce the power transmission area that does not tie up the portion through the power structure that subtracts who does not tie up the portion that sets up in the portion of tying up, and then can reduce the power of not tying up the portion to binding portion transmission, the problem of flexible printed circuit board easy pine take off, tear and break has been solved, compare with traditional flexible printed circuit board structure among the prior art, and then can strengthen the overlap joint effect of flexible printed circuit board.
Drawings
In order to illustrate the embodiments of the present invention more clearly, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious to those skilled in the art that other drawings can be obtained from the drawings without inventive work.
Fig. 1 is a schematic diagram of a flexible printed circuit provided in the prior art;
fig. 2 is a schematic structural diagram of a flexible printed circuit according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of another flexible printed circuit according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present application will be described clearly and completely with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.
The core of the utility model is to provide a flexible printed circuit board, can solve among the prior art traditional flexible printed circuit board easily pine take off, tear and separate and break, and then the poor problem of overlap joint effect that leads to.
In order to make the technical field of the present invention better understand, the present invention is further described in detail with reference to the accompanying drawings and the detailed description.
Fig. 2 is a schematic structural diagram of a flexible printed circuit according to an embodiment of the present invention, as shown in fig. 2, the flexible printed circuit includes:
a binding part 11 contacted with the flexible circuit board lapping product 1 and an unbound part 10 connected with the binding part 11 and not contacted with the flexible circuit board lapping product 1; the unbound portion 10 is provided with a force reducing structure 21 for reducing the force transmitted by the unbound portion 10 to the bound portion 11. In practical applications, the flexible printed circuit board may be an integrated structure formed by the bound portion 11 and the unbound portion 10, that is, an integrated structure, or may be a structure formed by two portions of the bound portion 11 and the unbound portion 10 being fixed together. The force reducing structure 21 is provided in the unbound portion 10 to reduce the force transmitted from the unbound portion 10 to the bound portion 11, except that the bound portion 11 is in contact with the fpc product 1 and the unbound portion 10 is not in contact with the fpc product 1. The force reducing structures 21 shown in fig. 2 are semicircular structures and are located on two sides of the unbound portion 10, which are not adjacent to each other, and in practical applications, the force reducing structures 21 of the semicircular structures may be symmetrically arranged on two sides of the unbound portion 10, which are not adjacent to each other, as shown in fig. 2; the flexible printed circuit board overlapping product 1 is rectangular, but in practical application, the force reducing structure 21, the flexible printed circuit board overlapping product 1 and the non-binding portion 10 are not limited to the shape shown in fig. 2, and the force reducing structure 21, the specific shape of the flexible printed circuit board overlapping product 1 and the non-binding portion 10 can be designed according to practical situations, without limitation. The force reducing structure 21 may be fabricated using a specific device.
In the prior art, the flexible printed circuit board usually needs to be connected to a related product to electrically connect the product with other devices, because the binding portion 11 of the flexible printed circuit board contacting the flexible printed circuit board overlapping product 1 is generally adhered to the flexible printed circuit board overlapping product 1, when the non-binding portion 10 of the flexible printed circuit board adhered thereon needs to be bent or the flexible printed circuit board overlapping product 1 is in production and transportation, when the non-binding portion 10 is impacted or collided, the applied force can be completely transmitted to the binding portion 11, and then the binding portion 11 is easily loosened, the flexible printed circuit board overlapping product 1 is torn away, and the situation that the binding portion 11 is broken may occur, and the overlapping effect of the binding portion 11 is further influenced.
The flexible printed circuit board provided by the embodiment of the application, set up on the portion 10 that does not bind of original flexible printed circuit board and subtract power structure 21, subtract power structure 21 can reduce the power that does not bind portion 10 to binding portion 11 transmission, that is to say, need carry out the bending operation or when pasting the flexible printed circuit board overlap joint product 1 that has this flexible printed circuit board to the portion 10 that does not bind that this embodiment of the application provided, when not binding portion 10 atress, can reduce the power that does not bind portion 10 conduction to binding portion 11 through subtracting power structure 21 on the portion 10 that does not bind, and then can avoid taking off because of binding portion 11 atress, tear off flexible printed circuit board overlap joint product 1 and the condition that binding portion 11 broke etc. appears, the lapping effect of flexible printed circuit board has been improved. In view of the convenience of removing the binding portion 11 from the flexible printed circuit board product 1 when the flexible printed circuit board needs to be repaired or otherwise operated, as a preferred embodiment, the binding portion 11 is attached to the flexible printed circuit board product 1 by an adhesive, and the adhesive is specifically a UV type and/or thermosetting type adhesive, and specifically, the UV type and/or thermosetting type adhesive may be attached between the flexible printed circuit board product 1 and the binding portion 11. The UV type adhesive has little pollution to the environment, and the thermosetting adhesive is resistant to aging, water and oil, and both are easy to solidify. It is understood that the adhesive may be other adhesives than UV and/or heat-set, and the invention is not limited thereto, and the UV and/or heat-set is only a preferred way and is not representative of this way, and of course, the type of adhesive does not affect the implementation of the embodiments of the present application.
In practical applications, the unbound portion 10 is suspended and does not need to be in direct contact with the flexible printed circuit board attachment product 1. In view of convenience of fabrication, the force reducing structure 21 is preferably embodied as a semicircular structure. As a preferred embodiment, the number of the semicircular force reducing structures 21 may be two, and the semicircular force reducing structures 21 are disposed on any two sides of the unbound portion 10 that are not adjacent. In consideration of manufacturing cost, as a preferred embodiment, a semicircular structure may be provided on one side of the unbound portion 10. In consideration of the aesthetic appearance of the flexible printed circuit board, the force reducing structure 21 may be a circular shape, and in practical applications, when the unbound portion 10 has a regular symmetrical pattern, the circular force reducing structure 21 may be disposed at the center of the unbound portion 10, that is, the center point of the force reducing structure 21 may coincide with the center point of the unbound portion 10. The force reducing structure 21 may also be rectangular. The shape of the force reducing structure 21 may be determined according to actual circumstances, for example, according to the shape of the unbound portion 10 and a processing device in the field. Of course, the shape of the force reducing structure 21 does not affect the implementation of the embodiment of the present application. In practical applications, it is preferable to add an engraving layer on the unbound portion 10 so as to engrave the word "this portion is not touched" on the engraving layer, so as to improve the overlapping effect of the flexible printed circuit.
The utility model provides a flexible printed circuit board, be provided with the subtracting structure in the portion of not tying up with flexible printed circuit board overlap joint product contact, the overlap joint product that has this flexible printed circuit board leads to not tying up the portion in the production transportation and is torn or need buckle the operation to this flexible printed circuit board and lead to not tying up the portion and receive the exogenic action when, can reduce the power transmission area that the subtracting structure that sets up in the portion of not tying up reduces not tying up the portion, and then can reduce the power of not tying up the portion to binding portion transmission, the easy pine of flexible printed circuit board has been solved, tear and the problem that breaks, compare with traditional flexible printed circuit board structure among the prior art, and then can strengthen the overlap joint effect of flexible printed circuit board.
Fig. 3 is a schematic diagram of another flexible printed circuit board according to an embodiment of the present invention, as shown in fig. 3, in order to prevent the binding portion 11 from being damaged when the force reducing structure 21 is disposed, and further, the overlapping effect of the flexible printed circuit board is affected, on the basis of the above embodiment, as a preferred implementation, a distance between any point on the force reducing structure 21 and any point on the binding portion 11 is at least a first threshold value.
Specifically, it is required to ensure that the minimum distance between any point on the edge line 210 of the force reducing structure 21 and any point on the edge line 110 of the binding portion 11 is the first threshold S, as shown in fig. 3, the purpose of the minimum distance is to prevent the force reducing structure 21 from crossing the lower edge line where the binding portion 11 and the flexible printed circuit board overlapping product 1 coincide with each other and further damaging the binding portion 11, the first threshold may be set according to actual conditions, and the size of the first threshold does not affect the implementation of the embodiment of the present application. The edge lines 210 are the lines that form the force reducing structure 21. The edge line 110 is a line forming the binding portion 11.
In order to further improve the bonding effect of the flexible printed circuit board, it is preferable that the size of the force reducing structure 21 is larger than the second threshold value, and the second threshold value is set according to the size of the unbound portion 10. That is, if the size of the unbound portion 10 is relatively large, the size of the force reducing structure 21 is also set to be larger, and if the size of the unbound portion 10 is relatively small, the size of the force reducing structure 21 is also set to be smaller, and the second threshold value is specifically set. It is understood that the first threshold and the second threshold are named only for distinguishing different thresholds according to habits and preferences, and have no other special meanings, and the way of naming the first threshold and the second threshold does not affect the implementation of the embodiment of the present application.
The flexible printed circuit board provided by the present invention is described in detail above. The principle and the implementation of the present invention are explained in the present document by using several examples, and the above description of the embodiments is only used to help understand the technical solution and the core idea of the present invention; meanwhile, for the general technical personnel in this field, according to the idea of the present invention, there can be changes in the specific implementation and application range, to sum up, the content of this specification should not be understood as the limitation of the present invention, and the technical personnel in this field should be included in this application for the modification, equivalent replacement, improvement, etc. made by the present invention on the premise of no creative work.
It is further noted that, in the present specification, relational terms such as first and second, and the like are used solely to distinguish one from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Furthermore, the term "comprises/comprising" and the like, such that a unit, device or system comprising a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such unit, device or system.
Claims (10)
1. A flexible wiring board, comprising:
the binding part is connected with the binding part and is not contacted with the flexible circuit board lapped product;
the unbound portion is provided with a force reducing structure for reducing a force transmitted by the unbound portion to the bound portion.
2. The flexible circuit board of claim 1, wherein a distance between any point on the force reducing structure and any point on the binding portion is at least a first threshold.
3. The flexible circuit board of claim 2, wherein the force reducing structure is a semi-circular structure.
4. A flexible circuit board according to claim 3, wherein said semicircular structure is located on one side of said unbound portion.
5. The flexible printed circuit board of claim 3, wherein the number of the semicircular structures is two, and the semicircular structures are located on two sides of the unbound portion that are not adjacent to each other.
6. The flexible circuit board of claim 2, wherein the force reducing structure is substantially circular.
7. The flexible printed circuit of claim 6, wherein the size of the force reducing structure is greater than a second threshold, and the second threshold is set according to the size of the unbound portion.
8. The flexible circuit board of claim 2, wherein the force reducing structure is rectangular in shape.
9. The flexible wiring board of claim 1, wherein the unbound portion further comprises a decorative layer.
10. A flexible printed circuit according to any one of claims 1 to 9, wherein the binding portion is adhered to the flexible printed circuit board bonding product by an adhesive, and the adhesive is a UV type and/or a thermosetting type adhesive.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821564845.3U CN212992670U (en) | 2018-09-20 | 2018-09-20 | Flexible circuit board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821564845.3U CN212992670U (en) | 2018-09-20 | 2018-09-20 | Flexible circuit board |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212992670U true CN212992670U (en) | 2021-04-16 |
Family
ID=75397258
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821564845.3U Active CN212992670U (en) | 2018-09-20 | 2018-09-20 | Flexible circuit board |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212992670U (en) |
-
2018
- 2018-09-20 CN CN201821564845.3U patent/CN212992670U/en active Active
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