Flexible circuit board easy to tear and convenient to bend

Abstract

The utility model discloses a flexible circuit board easy to tear and convenient to bend, and relates to the technical field of flexible circuit boards. The flexible circuit board comprises a flexible board body, the flexible board body comprises a lower insulating film layer, a circuit layer is fixedly laminated on the lower insulating film layer, an upper insulating film layer is fixedly laminated on the circuit layer, a plurality of groups of component welding positions are regularly arranged on the upper surface of the upper insulating film layer, and a plurality of bending units are sequentially arranged on the circuit layer along the bending direction. According to the utility model, the bending units and the tearing teeth are arranged, the bending units are alternately arranged in a staggered manner, and the through holes are formed in the bending units in a matched manner, so that a vertically staggered and hollowed-out grounding layer structure is formed, the durability of bending is greatly improved, and the service life of the circuit board is prolonged; the tearing teeth divide the flexible plate body into a plurality of long-strip-shaped thin plates which can be torn manually in the tearing direction, the long-strip-shaped thin plates can be torn manually without a cutting tool, the long-strip-shaped thin plates can be attached to an installation face after being bent easily, and the flexible plate is easy to use and convenient to operate.

Description

TECHNICAL FIELD

[0001] The utility model belongs to flexible circuit board technical field, especially, relate to a kind of flexible circuit board that is easy to tear and convenient to bend. BACKGROUND

[0002] With the continuous updating of new product technologies such as mobile products, more and more devices adopt design ideas such as bendable and flexible on the structure, so that users can have a better experience of the products. Similarly, the bendable and flexible features also greatly improve the diversification of device functions in terms of the functions achieved by the products. For example, the current folding mobile phone realizes flexible switching between large and small screens through the bendable and flexible features, greatly improving the use effect of the mobile phone.

[0003] In the prior art, the traditional flexible FPC circuit technology realizes the bendable and flexible features of the circuit by printing the circuit on a bendable substrate. However, the bending angle and frequency are very limited, and the circuit is prone to breakage after being bent multiple times, which greatly limits the service life of the product functions. UTILITY MODEL CONTENTS

[0004] The utility model aims to provide a kind of flexible circuit board that is easy to tear and convenient to bend, to solve the problems raised in the above background.

[0005] To solve the above technical problems, the utility model is realized by the following technical solutions:

[0006] The utility model is a kind of flexible circuit board that is easy to tear and convenient to bend, comprising a flexible board body, the flexible board body includes lower insulating film layer, circuit layer is fixed on the lower insulating film layer, upper insulating film layer is fixed on the circuit layer, the upper surface of the upper insulating film layer is regularly provided with a plurality of component welding sites, the circuit layer is sequentially provided with a plurality of bending units along the bending direction, a plurality of the bending units are alternately arranged in the vertical direction of the bending direction, a plurality of ground wires are electrically connected between each of the bending units, a plurality of through holes are formed between a plurality of the ground wires, a plurality of tear teeth are arranged on both sides of the flexible board body along the tearing direction, a connecting point is arranged between adjacent tear teeth, and a plurality of tear teeth divide the flexible board body into a plurality of long strip-shaped thin plate bodies along the tearing direction.

[0007] The length of the bending unit along the bending direction is less than the length of the bending unit along the vertical direction of the bending direction.

[0008] The length of the through hole along the bending direction is less than the length of the through hole along the vertical direction of the bending direction. Through the above arrangement, the possibility of breaking of each bending unit along the bending direction is reduced, thereby improving the overall bending durability.

[0009] The tear teeth arranged along the tear direction are in a toothed or broken line structure, and several of the tear teeth are arranged in an alternating staggered manner; through the above arrangement, the flexible plate body can be directly manually torn.

[0010] The material of the flexible plate body and the tear teeth is a polyester film; the polyester film material gives the flexible plate body good flexibility and fold resistance, so that it can be used in various complex shapes and structures.

[0011] The utility model has the following beneficial effects:

[0012] The utility model discloses a bending unit and tear teeth are set up, through the alternating staggered bending unit, cooperate the through -hole of setting up on the bending unit simultaneously, to form the ground layer structure of upper -and -lower interlaced, hollow, greatly improve the durable performance of bending, prolong the service life of circuit board, tear teeth along the tear direction divides the flexible plate body into a plurality of long strip thin plate that can be manually torn, need not cutting tool just can manually tear, also easy to bend and adhere on the installation surface, simple to use, convenient operation.

[0013] Of course, any product implementing the utility model does not necessarily need to achieve all the advantages described above. DRAWINGS

[0014] In order to more clearly illustrate the technical scheme of the embodiments of the utility model, the following will be needed to use the drawings of the embodiment to make a brief introduction, obviously, the drawings in the following description only some embodiments of the utility model, for those skilled in the art, under the premise of not paying creative labor, other drawings can also be obtained according to these drawings.

[0015] Figure 1 It is the whole structure schematic diagram of the utility model.

[0016] In the drawings, the component list represented by each sign is as follows:

[0017] 1, flexible plate body; 2, bending unit; 201, through -hole; 3, tear teeth; 301, connecting point; 4, circuit layer. CONCRETE IMPLEMENTATION

[0018] The technical scheme in the embodiments of the utility model will be described clearly and completely in conjunction with the drawings of the embodiments of the utility model, obviously, the described embodiments only some embodiments of the utility model, not all embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without making creative labor belong to the scope of protection of the utility model.

[0019] In the description of the utility model, it is necessary to understand that the terms "upper", "middle", "outer", "inner" and the like indicate the orientation or positional relationship, which is only for the convenience of describing the utility model and simplifying the description, and is not indicative or suggestive of the components or elements indicated having a specific orientation, being constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model.

[0020] In the description of the utility model, it should be noted that, unless otherwise expressly specified and limited, the terms "mounting", "provided with", "connection" and the like should be understood broadly, for example, "connection" can be fixed connection, can also be detachable connection, or integral connection, can be mechanical connection, can also be electrical connection, can be directly connected, can also be indirectly connected through an intermediate medium, and can be the communication between two elements. For ordinary skilled persons in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0021] Please refer to Figure 1 As shown in the utility model is a kind of easily tear and convenient to bend flexible circuit board, including flexible board body 1, flexible board body 1 includes lower insulating film layer, lower insulating film layer is stacked and fixed with circuit layer 4, circuit layer 4 is stacked and fixed with upper insulating film layer, the upper surface of upper insulating film layer is regularly provided with a plurality of component welding sites, circuit layer 4 is sequentially provided with a plurality of bending units 2 along the bending direction, a plurality of bending units 2 are alternately staggered in the vertical direction of bending direction, a plurality of ground wires electrically connected with each other are arranged between each group of bending units 2, a plurality of ground wires are provided with through hole 201, the two sides of flexible board body 1 along tear direction are provided with a plurality of tear teeth 3, connection point 301 is arranged between adjacent tear teeth 3, a plurality of tear teeth 3 divide flexible board body 1 into a plurality of long strip-shaped thin plate bodies along tear direction.

[0022] The length of bending unit 2 along the bending direction is less than the length of bending unit 2 along the vertical direction of the bending direction.

[0023] The length of through hole 201 along the bending direction is less than the length of through hole 201 along the vertical direction of the bending direction, through the above setting, the possibility of breaking of each group of bending units 2 along the bending direction is reduced, thereby improving the overall bending durability.

[0024] Tear tooth 3 arranged along tear direction is in tooth shape or fold line structure, a plurality of tear teeth 3 are alternately staggered, through the above setting, it is convenient to manually tear flexible board body 1 directly.

[0025] The material of flexible board body 1 and tear tooth 3 is polyester film, the polyester film material gives flexible board body 1 good flexibility and crease resistance, so that it can be used in various complex shapes and structures.

[0026] It needs to be supplemented that the bending units 2 are arranged alternately and staggeredly, and the through holes 201 are arranged on the bending units 2 to form the upper and lower staggered and hollow ground layer structure, which greatly improves the durability of the bending and prolongs the service life of the flexible plate body 1; the tear teeth 3 divide the flexible plate body 1 into a plurality of long strip-shaped thin plates which can be manually torn along the tear direction, and the flexible plate body 1 can be manually torn without cutting tools, and is easy to be bent and attached to the installation surface, so that the use is simple and the operation is convenient.

[0027] In the description of the present specification, the description referring to the terms "one embodiment", "an example", "a specific example" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are contained in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0028] The preferred embodiments of the above disclosed application are only used to help explain the application. The preferred embodiments do not describe all the details, nor limit the application to the specific embodiments described. Obviously, according to the content of the present specification, many modifications and changes can be made. The present specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the application, so that the skilled in the art can well understand and utilize the application. The application is limited by the claims and their entire scope and equivalents.

Claims

1. A flexible circuit board that is easy to tear and bend, comprising a flexible board body (1), characterized in that: The flexible plate body (1) comprises a lower insulating film layer, a circuit layer (4) is fixedly stacked on the lower insulating film layer, an upper insulating film layer is fixedly stacked on the circuit layer (4), a plurality of groups of component welding positions are regularly arranged on the upper surface of the upper insulating film layer, a plurality of bending units (2) are sequentially arranged along a bending direction on the circuit layer (4), the plurality of bending units (2) are alternately and staggeredly arranged in a direction perpendicular to the bending direction, a plurality of grounding lines electrically connected to each other are arranged between each group of the bending units (2), a through hole (201) is arranged between the plurality of grounding lines, a plurality of tearing teeth (3) are arranged on both sides of the flexible plate body (1) along a tearing direction, a connecting point (301) is arranged between adjacent tearing teeth (3), and the plurality of tearing teeth (3) divide the flexible plate body (1) into a plurality of strip-shaped plate bodies along the tearing direction.

2. The flexible circuit board of claim 1, wherein, The length of the bending unit (2) along the bending direction is less than the length of the bending unit (2) along the direction perpendicular to the bending direction.

3. The flexible circuit board of claim 2, wherein, The length of the through hole (201) along the bending direction is less than the length of the through hole (201) along the direction perpendicular to the bending direction.

4. The flexible circuit board of claim 3, wherein the first and second bendable portions are formed by cutting the flexible circuit board along the first and second bendable lines, respectively. The tearing teeth (3) arranged along the tearing direction are in a tooth-like or fold line structure, and the plurality of tearing teeth (3) are alternately and staggeredly arranged.

5. The flexible circuit board of claim 1, wherein, The material of the flexible plate body (1) and the tearing teeth (3) is a polyester film.

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