Flexible circuit board capable of being bent and folded

Abstract

The utility model discloses a flexible circuit board capable of being bent and folded, a connecting mechanism comprises a first flexible board, a second flexible board, a first plug board, a second plug board, a third plug board and a fourth plug board, and the first plug board and the second plug board are respectively and integrally formed on two sides of the first flexible board. The third inserting plate and the fourth inserting plate are integrally formed on the two sides of the second hard plate respectively, a first dovetail groove and a second dovetail groove are formed in the front face of the first soft plate in a penetrating mode respectively, and a third dovetail groove and a fourth dovetail groove are formed in the front face of the second soft plate in a penetrating mode respectively; one side of a first dovetail groove, one side of a second dovetail groove, one side of a third dovetail groove and one side of a fourth dovetail groove are open, and the circuit board relates to the technical field of circuit boards. When the circuit board is folded, a first soft board and a second soft board are used for supporting, the situation that a first hard board and a second hard board are in contact after being folded is avoided, and the circuit board is convenient to fold. And the circuit board is prevented from being damaged.

Description

Technical Field

[0001] The utility model relates to the technical field of circuit boards, in particular to a bendable and foldable flexible circuit board. Background Art

[0002] After searching, the Chinese patent publication number is CN209824114U, and the publication date is 2019-12-20. It discloses a bendable and foldable circuit board, which belongs to the field of circuit boards. The key points of its technical solution are that it includes pads, components and wires. The pads include soft boards, and the soft boards are fixedly connected to the outer surface of the pads. The outer surface of the pads is welded with components, and the outer surface of the components is fixedly connected with wires. The outer surface of the soft board is fixedly connected to a hard board, and the inside of the pad is fixedly connected with a signal layer, and the inside of the pad is fixedly connected with a silk screen layer. The soft board is fixedly connected between two hard boards, and the pad can be bent and folded without destroying the signal of the circuit board, thereby reducing the space occupied by the circuit board and meeting the purpose of bending and folding. The protective coating can effectively reduce impedance, protect the signal at the connection between the soft board and the hard board, improve the stability of signal transmission, and enable the bendable circuit board to be used normally. The cross-sectional area of ​​the protective coating is very small, which can reduce the use space of the circuit board. However, after the circuit board is folded, if the upper hard board is not fixed and only one soft board is used for support, the entire hard board will collapse to one side, and the welding points on the two hard boards will come into contact, causing damage to the circuit board. Utility Model Content

[0003] The purpose of the utility model is to provide a bendable and foldable flexible circuit board to solve the technical problems mentioned in the above background technology.

[0004] The purpose of the utility model can be achieved through the following technical solutions:

[0005] A bendable and foldable flexible circuit board comprises a solder pad, wherein the solder pad comprises a first hard board and a second hard board, and a connecting mechanism is arranged on the solder pad.

[0006] The connecting mechanism includes a first soft board, a second soft board, a first plug board, a second plug board, a third plug board and a fourth plug board, the first plug board and the second plug board are respectively integrally formed on both sides of the first hard board, the third plug board and the fourth plug board are respectively integrally formed on both sides of the second hard board, the front side of the first soft board is respectively penetrated with a first dovetail groove and a second dovetail groove, the front side of the second soft board is respectively penetrated with a third dovetail groove and a fourth dovetail groove, and one side of the groove cavity of the first dovetail groove, the second dovetail groove, the third dovetail groove and the fourth dovetail groove are all opened.

[0007] As a further solution of the utility model: the second plug board is plugged into the first dovetail groove, and the third plug board is plugged into the second dovetail groove.

[0008] As a further solution of the utility model: the first plug plate is adapted to the fourth dovetail groove, and the fourth plug plate is plugged into the third dovetail groove.

[0009] As a further solution of the present invention: mounting holes are provided through the tops of the first hard plate and the second hard plate.

[0010] As a further solution of the utility model: the thickness of the first soft board and the second soft board are both the same as the thickness of the pad.

[0011] As a further solution of the utility model: via holes are provided through the tops of the first hard board and the second hard board.

[0012] Beneficial Effects

[0013] The utility model provides a bendable and foldable flexible circuit board. Compared with the prior art, it has the following beneficial effects:

[0014] (1) In the present application, when the circuit board is folded, the first soft board and the second soft board are used for support, thereby avoiding contact between the first hard board and the second hard board after folding, thereby preventing damage to the circuit board.

[0015] (2) The present application uses mounting holes to facilitate fixing of the pad. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional diagram of the utility model;

[0017] Figure 2 It is an exploded view of the utility model.

[0018] In the figure: 1. soldering pad; 11. first hard board; 12. second hard board; 2. connecting mechanism; 201. first soft board; 202. second soft board; 203. first plug-in board; 204. second plug-in board; 205. third plug-in board; 206. fourth plug-in board; 207. first dovetail groove; 208. second dovetail groove; 209. third dovetail groove; 210. fourth dovetail groove; 3. mounting hole; 4. via. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] See also Figure 1-2 As shown, the utility model is a bendable and foldable flexible circuit board, including a pad 1, the pad 1 includes a first hard board 11 and a second hard board 12, and a connecting mechanism 2 is arranged on the pad 1; the connecting mechanism 2 includes a first soft board 201, a second soft board 202, a first plug board 203, a second plug board 204, a third plug board 205 and a fourth plug board 206. After the first soft board 201 and the second soft board 202 are folded, they can maintain the folded state and have a certain supporting effect. The first plug board 203 and the second plug board 204 are respectively integrally formed on both sides of the first hard board 11, and the third plug board 205 and the fourth plug board 206 are respectively integrally formed on both sides of the first hard board 11. The first soft board 201 and the second soft board 202 are integrally formed on both sides of the second hard board 12, the front side of the first soft board 201 is respectively penetrated with a first dovetail groove 207 and a second dovetail groove 208, the front side of the second soft board 202 is respectively penetrated with a third dovetail groove 209 and a fourth dovetail groove 210, and one side of the groove cavity of the first dovetail groove 207, the second dovetail groove 208, the third dovetail groove 209 and the fourth dovetail groove 210 are all opened. When the circuit board is folded, the first soft board 201 and the second soft board 202 are used for support to avoid contact between the folded first hard board 11 and the second hard board 12, thereby avoiding damage to the circuit board.

[0021] The second plug-in plate 204 is plugged into the first dovetail groove 207 , and the third plug-in plate 205 is plugged into the second dovetail groove 208 .

[0022] The first plug plate 203 is matched with the fourth dovetail groove 210 , and the fourth plug plate 206 is plugged into the third dovetail groove 209 .

[0023] A mounting hole 3 is formed through the top of the first hard board 11 and the second hard board 12 , and the pad 1 can be conveniently fixed through the mounting hole 3 .

[0024] The thickness of the first flexible board 201 and the second flexible board 202 are both the same as the thickness of the pad 1 .

[0025] A via 4 is formed through the top of each of the first hard board 11 and the second hard board 12 .

[0026] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0027] The working principle of the utility model is as follows: by folding the first soft board 201, the first hard board 11 or the second hard board 12 is folded upwards, when the first hard board 11 or the second hard board 12 located at the top is not fixed with screws, then, the second soft board 202 is folded, then, the second soft board 202 is removed from the fourth plug board 206, and then the third dovetail groove 209 is aligned with the fourth plug board 206, and the fourth dovetail groove 210 is aligned with the first plug board 203, and the second soft board 202 is clamped on the first plug board 203 and the fourth plug board 206, and the second soft board 202 is used to support the first hard board 11 or the second hard board 12 above. Therefore, by using the first soft board 201 and the second soft board 202 for support, the contact between the folded first hard board 11 and the second hard board 12 is avoided, and the circuit board is avoided from being damaged.

[0028] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A bendable and foldable flexible circuit board, comprising a pad (1), characterized in that: The soldering pad (1) comprises a first hard plate (11) and a second hard plate (12), and a connecting mechanism (2) is provided on the soldering pad (1); The connecting mechanism (2) comprises a first soft board (201), a second soft board (202), a first plug board (203), a second plug board (204), a third plug board (205) and a fourth plug board (206); the first plug board (203) and the second plug board (204) are respectively integrally formed on both sides of the first hard board (11); the third plug board (205) and the fourth plug board (206) are respectively integrally formed on both sides of the second hard board (12); a first dovetail groove (207) and a second dovetail groove (208) are respectively penetrated through the front surface of the first soft board (201); a third dovetail groove (209) and a fourth dovetail groove (210) are respectively penetrated through the front surface of the second soft board (202); one side of the groove cavity of the first dovetail groove (207), the second dovetail groove (208), the third dovetail groove (209) and the fourth dovetail groove (210) are all open.

2. The bendable and foldable flexible circuit board according to claim 1, characterized in that: The second plug-in plate (204) is plugged into the first dovetail groove (207), and the third plug-in plate (205) is plugged into the second dovetail groove (208).

3. The bendable and foldable flexible circuit board according to claim 1, characterized in that: The first plug plate (203) is adapted to fit the fourth dovetail groove (210), and the fourth plug plate (206) is plugged into the third dovetail groove (209).

4. The bendable and foldable flexible circuit board according to claim 1, characterized in that: The tops of the first hard plate (11) and the second hard plate (12) are both penetrated by mounting holes (3).

5. The bendable and foldable flexible circuit board according to claim 1, characterized in that: The thickness of the first soft board (201) and the second soft board (202) are both the same as the thickness of the solder pad (1).

6. The bendable and foldable flexible circuit board according to claim 1, characterized in that: A via (4) is provided through the top of each of the first hard plate (11) and the second hard plate (12).

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