CN214315725U - Flexible printed circuit board - Google Patents
Flexible printed circuit board Download PDFInfo
- Publication number
- CN214315725U CN214315725U CN202023192378.6U CN202023192378U CN214315725U CN 214315725 U CN214315725 U CN 214315725U CN 202023192378 U CN202023192378 U CN 202023192378U CN 214315725 U CN214315725 U CN 214315725U
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- circuit board
- flexible circuit
- flexible
- printed circuit
- flexible printed
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Abstract
The utility model discloses a flexible printed circuit board relates to printed circuit board and makes technical field, has solved traditional flexible circuit board and has often appeared droing after long-time use or atress, simultaneously because flexible circuit board can be crooked often receive and pull the power to breach or crackle appear and cause the damage easily in the bend, seriously influence flexible circuit board's life's technical problem, the technical scheme of solution problem is right one, and the technological effect who gains is: rubber strips I are bonded at the bottom center of the flexible circuit board at equal intervals and can be matched with two groups between the rubber strips I and the rubber strips I to improve the bending and stretching reliability of the bottom center of the flexible circuit board; a set of rubber strip two that central slab bottom front end bonded can cooperate buffering extension spring two between the two, can improve the crooked tensile reliability of central slab front end position, and then has avoided the condition that breach or crackle appear in the bending on the flexible circuit board, ensures flexible circuit board's life.
Description
Technical Field
The utility model relates to a printed circuit board makes technical field, in particular to flexible printed circuit board.
Background
The flexible printed circuit board is a flexible printed circuit board which is made of polyimide or polyester film as a base material, has high reliability and excellent performance, is called as a flexible circuit board, has the characteristics of high wiring density, light weight and thin thickness, and is mainly used for a plurality of products such as mobile phones, notebook computers, PDAs, digital cameras, LCMs and the like.
The traditional flexible circuit board often drops after being used for a long time or being stressed, and meanwhile, the flexible circuit board can be bent and often subjected to pulling force, so that gaps or cracks are easy to appear at the bent part to cause damage, and the service life of the flexible circuit board is seriously influenced. To this end, we propose a flexible printed circuit board to solve the above problems.
SUMMERY OF THE UTILITY MODEL
A primary object of the present invention is to provide a flexible printed circuit board 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 flexible printed circuit board, includes flexible circuit board, flexible circuit board left end top is equipped with metal level one, flexible circuit board right-hand member central point puts and has central slab, and the terminal top of central slab is equipped with metal level two, flexible circuit board bottom central point puts the equidistance and bonds and have rubber strip one, adjacent two both ends are connected through a set of buffering extension spring one respectively between the rubber strip one, central slab bottom front end bonds and has a set of rubber strip two, two both ends are connected through buffering extension spring two respectively between the rubber strip two, reserved screw hole has all been seted up in the flexible circuit board both sides.
Preferably, a waterproof layer is further adhered to the upper surface of the flexible circuit board.
Preferably, the waterproof layer is a waterproof breathable film layer.
Preferably, the two ends of the bottom of the flexible circuit board are both bonded with a third rubber strip.
Preferably, rubber gaskets are bonded to the upper end and the lower end of each reserved screw hole.
Compared with the prior art, the utility model discloses following beneficial effect has:
1. the utility model discloses, through having rubber strip one in the equidistant bonding of flexible circuit board bottom central point, and two ends are connected through a set of buffering extension spring one respectively between two adjacent rubber strip one, can improve the flexible circuit board bottom central point and put the bending and stretching (structural strength) reliability; a group of second rubber strips is bonded at the front end of the bottom of the central plate, and the two ends of the two second rubber strips are connected through a second buffer tension spring, so that the reliability of bending and stretching (structural strength) of the front end of the central plate can be improved, the situation that a notch or a crack appears at the bent part on the flexible circuit board is avoided, and the service life of the flexible circuit board is guaranteed.
2. The utility model discloses, still paste waterproof ventilative rete as the waterproof layer through at the flexible circuit board upper surface to can improve the waterproof performance of flexible circuit board upper surface, avoid the flexible circuit board to burn out because of the wet invasion and attack short circuit of water, and waterproof ventilative rete still has ventilative heat dispersion concurrently, can effectively avoid the flexible circuit board to damage because of high temperature.
Drawings
Fig. 1 is an overall structure diagram of the present invention.
Fig. 2 is a structural diagram of the rubber strip of the present invention.
Fig. 3 is a cut-away view of the surface material layer of the flexible printed circuit board of the present invention.
Fig. 4 is a second structure diagram of the rubber strip of the present invention.
In the figure: 1. a flexible circuit board; 2. a central panel; 3. reserving a screw hole; 4. a rubber gasket; 5. a first metal layer; 6. a first rubber strip; 7. a first buffer tension spring; 8. a third rubber strip; 9. a second buffer tension spring; 10. a second metal layer; 11. a second rubber strip; 12. and a waterproof layer.
Detailed Description
The present invention will be described in further detail with reference to the drawings, wherein like elements are designated by like reference numerals, wherein the terms "front", "rear", "left", "right", "upper" and "lower", "bottom" and "top" used in the following description refer to the orientation in the drawings, and the terms "inner" and "outer" refer to the orientation toward or away from the geometric center of a particular element, respectively.
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. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-4, a flexible printed circuit board includes a flexible circuit board 1, a first metal layer 5 is disposed on the top of the left end of the flexible circuit board 1, a central plate 2 is disposed at the center of the right end of the flexible circuit board 1, a second metal layer 10 is disposed on the top of the end of the central plate 2, first rubber strips 6 are bonded to the center of the bottom of the flexible circuit board 1 at equal intervals, two adjacent first rubber strips 6 are connected to each other at two ends through a first buffer tension spring 7, a second rubber strip 11 is bonded to the front end of the bottom of the central plate 2, two rubber strips 11 are connected to each other at two ends through a second buffer tension spring 9, and two reserved screw holes 3 are disposed on two sides of the flexible circuit board 1.
Referring to fig. 3, in order to improve the waterproof performance of the upper surface of the flexible circuit board 1 and prevent the flexible circuit board 1 from being burnt due to a short circuit caused by water moisture invasion, a waterproof layer 12 is further adhered to the upper surface of the flexible circuit board 1.
Referring to fig. 3, in order to waterproof the upper surface of the flexible circuit board 1 and have air-permeable and heat-dissipating properties, the waterproof layer 12 is a waterproof and air-permeable film.
Referring to fig. 2, in order to facilitate shock absorption protection of two ends of the fixed flexible circuit board 1, rubber strips three 8 are bonded to two ends of the bottom of the flexible circuit board 1.
Referring to fig. 1 and 2, in order to facilitate shock absorption protection at the fixing bolt of the fixed flexible circuit board 1, rubber washers 4 are adhered to the upper and lower ends of each of the reserved screw holes 3.
The working principle is as follows: when the flexible circuit board 1 is bent into a certain shape and is fixed on electrical equipment by a screw penetrating through the reserved screw hole 3, the rubber strips 6 are bonded at the central position of the bottom of the flexible circuit board 1 at equal intervals, and two ends of each two adjacent rubber strips 6 are connected through a group of buffer tension springs 7 respectively, so that the bending and stretching (structural strength) reliability of the central position of the bottom of the flexible circuit board 1 can be improved; a group of second rubber strips 11 is bonded at the front end of the bottom of the central plate 2, and two ends of the two second rubber strips 11 are connected through a second buffer tension spring 9, so that the reliability of bending and stretching (structural strength) of the front end of the central plate 2 can be improved, the situation that notches or cracks appear at the bent part of the flexible circuit board 1 is avoided, and the service life of the flexible circuit board 1 is guaranteed; the waterproof breathable film layer is further adhered to the upper surface of the flexible circuit board 1 and serves as the waterproof layer 12, so that the waterproof performance of the upper surface of the flexible circuit board 1 can be improved, the flexible circuit board 1 is prevented from being burnt due to water-wet invasion short circuit, the waterproof breathable film layer also has breathable heat dissipation performance, and the flexible circuit board 1 can be effectively prevented from being damaged due to high temperature.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. A flexible printed circuit board comprising a flexible circuit board (1), characterized in that: flexible circuit board (1) left end top is equipped with metal level one (5), flexible circuit board (1) right-hand member central point puts and has central slab (2), and central slab (2) terminal top is equipped with metal level two (10), flexible circuit board (1) bottom central point puts the equidistance and bonds and have rubber strip one (6), adjacent two both ends are connected through a set of buffering extension spring one (7) respectively between rubber strip one (6), central slab (2) bottom front end bonds and has a set of rubber strip two (11), two both ends are connected through buffering extension spring two (9) respectively between rubber strip two (11), reserve screw hole (3) have all been seted up to flexible circuit board (1) both sides.
2. A flexible printed circuit board according to claim 1, characterized in that: and a waterproof layer (12) is adhered to the upper surface of the flexible circuit board (1).
3. A flexible printed circuit board according to claim 2, characterized in that: the waterproof layer (12) is a waterproof breathable film layer.
4. A flexible printed circuit board according to claim 1, characterized in that: and rubber strips III (8) are bonded at two ends of the bottom of the flexible circuit board (1).
5. A flexible printed circuit board according to claim 1, characterized in that: and rubber gaskets (4) are bonded at the upper end and the lower end of each reserved screw hole (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023192378.6U CN214315725U (en) | 2020-12-27 | 2020-12-27 | Flexible printed circuit board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023192378.6U CN214315725U (en) | 2020-12-27 | 2020-12-27 | Flexible printed circuit board |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214315725U true CN214315725U (en) | 2021-09-28 |
Family
ID=77861688
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023192378.6U Active CN214315725U (en) | 2020-12-27 | 2020-12-27 | Flexible printed circuit board |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214315725U (en) |
-
2020
- 2020-12-27 CN CN202023192378.6U patent/CN214315725U/en active Active
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