CN219068461U - Flexible circuit board for reducing tearing force - Google Patents
Flexible circuit board for reducing tearing force Download PDFInfo
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- CN219068461U CN219068461U CN202223024799.7U CN202223024799U CN219068461U CN 219068461 U CN219068461 U CN 219068461U CN 202223024799 U CN202223024799 U CN 202223024799U CN 219068461 U CN219068461 U CN 219068461U
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Abstract
The utility model belongs to the technical field of flexible circuit boards, and particularly relates to a flexible circuit board for reducing tearing force, which comprises a circuit board body and a metal foil printed on the circuit board body; the circuit board body comprises a pressing area, a switching area and a main body area which are sequentially arranged along the length direction; the switching area is of an inverted trapezoid structure, and a plurality of bending points are arranged between the switching area and the main body area. The flexible circuit board structure is optimized, so that the stress points can be transferred, and the flexible circuit board is prevented from being damaged by tearing force.
Description
Technical Field
The utility model belongs to the technical field of flexible circuit boards, and particularly relates to a flexible circuit board for reducing tearing force.
Background
The FPC is an English abbreviation of flexible printed circuit board, it is a circuit board with high reliability made of polyimide or polyester film as substrate, have advantages such as the density of wiring is high, light in weight, thickness are thin, etc., is used in the field of electronic equipment such as notebook computer, liquid crystal display, mobile phone, digital camera, avionics extensively.
The FPC design is according to conventional design, has ordinary straight strip design, and actual straight strip design FPC is easily pressing the end atress, and in the operation process FPC, when tearing can make FPC perk, the fracture can seriously influence product quality, causes the functional failure, influences product production efficiency and loss too big.
Disclosure of Invention
The utility model aims at: to the not enough of prior art, provide a flexible circuit board for reducing receive tearing force, through optimizing flexible circuit board structure, can shift the stress point, avoid flexible circuit board to receive tearing force damage.
In order to achieve the above purpose, the present utility model adopts the following technical scheme:
a flexible circuit board for reducing tearing force comprises a circuit board body and a metal foil printed on the circuit board body; the circuit board body comprises a pressing area, a switching area and a main body area which are sequentially arranged along the length direction; the switching area is of an inverted trapezoid structure, and a plurality of bending points are arranged between the switching area and the main body area.
Preferably, the number of the bending points is two, and the bending points are positioned at two ends of the circuit board body in the width direction.
Preferably, the distance between the center of the bending point and the edge of the circuit board body is 0.25mm-0.65mm.
Preferably, the distance between the center of the bending point and the edge of the circuit board body is 0.45mm.
Preferably, the diameter of the bending point is 0.4mm-0.8mm.
Preferably, the diameter of the bending point is 0.6mm.
Preferably, the pressing area and the transfer area are symmetrically arranged at two ends of the main body area.
Preferably, the metal foil forms a plurality of wires within the circuit board body, the wires being connected to the metal foil of the nip.
Preferably, the pressing area, the transferring area and the main body area are integrally formed.
Preferably, the pressing region is an ITO pressing end.
The utility model has the beneficial effects that the circuit board body is divided into the pressing area, the switching area and the main body area, the switching area is of an inverted trapezoid structure, a plurality of bending points are added between the switching area and the main body area, the stress of the flexible circuit board can be transferred to the bending points, the local stress intensity of the flexible circuit board can be enhanced, the flexible circuit board is prevented from being damaged by tearing force, and the quality and the use stability of products can be improved.
Drawings
Features, advantages, and technical effects of exemplary embodiments of the present utility model will be described below with reference to the accompanying drawings.
Fig. 1 is a schematic structural view of the present utility model.
Fig. 2 is a schematic end structure of the present utility model.
Wherein reference numerals are as follows:
1-a circuit board body;
2-metal foil;
3-press zone;
4-switching region;
a 5-body region;
6-bending points;
x-length direction; y-width direction.
Detailed Description
Certain terms are used throughout the description and claims to refer to particular components. Those of skill in the art will appreciate that a hardware manufacturer may refer to the same component by different names. The description and claims do not take the form of an element differentiated by name, but rather by functionality. As used throughout the specification and claims, the word "comprise" is an open-ended term, and thus should be interpreted to mean "include, but not limited to. By "substantially" is meant that within an acceptable error range, a person skilled in the art can solve the technical problem within a certain error range, substantially achieving the technical effect.
Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
The present utility model will be described in further detail with reference to fig. 1 to 2, but the present utility model is not limited thereto.
Embodiment one
Embodiment one will be described with reference to FIG. 1
The flexible circuit board for reducing the tearing force comprises a circuit board body 1 and a metal foil 2 printed on the circuit board body 1; the circuit board body 1 comprises a pressing area 3, a switching area 4 and a main body area 5 which are sequentially arranged along the length direction X; the switching area 4 is of an inverted trapezoid structure, and a plurality of bending points 6 are arranged between the switching area 4 and the main body area 5.
Because straight strip design FPC is easy to press the end atress, in the operation process FPC, can make FPC perk when tearing, the fracture can seriously influence product quality, causes the functional failure, influence product production efficiency and loss too big, consequently, divide into press district 3 with circuit board body 1, switching district 4 and main part district 5, and switching district 4 is the trapezoid structure of falling, and increase a plurality of bending points 6 between switching district 4 and main part district 5, can shift the atress of flexible circuit board to bending point 6, help reinforcing flexible circuit board's local atress intensity, avoid flexible circuit board to receive tearing the power damage, help improving product quality and stability in use.
In this embodiment, when the flexible circuit board 2D diagram is manufactured, the tear point of the flexible circuit board is calculated and obtained, the copper plate is added, and when the flexible circuit board wiring design is performed, the design is performed according to the package of the 2D diagram.
In the flexible circuit board for reducing the tearing force according to the present utility model, the number of the bending points 6 is two, and the bending points 6 are located at two ends of the circuit board body 1 in the width direction Y, but the present utility model is not limited thereto, and the number and arrangement of the bending points 6 can be adjusted according to the actual requirements.
In the flexible circuit board for reducing the tearing force according to the present utility model, the distance between the bending point 6 and the edge of the circuit board body 1 is 0.25mm to 0.65mm, for example, the distance between the bending point 6 and the edge of the circuit board body 1 is 0.25mm, 0.35mm, 0.45mm, 0.55mm or 0.65mm, so that the stress affecting the whole flexible circuit board is prevented from being caused by the excessive distance, and the diameter of the bending point 6 is 0.4mm to 0.8mm, for example, the diameter of the bending point 6 is 0.4mm, 0.5mm, 0.6mm, 0.7mm or 0.8mm, so that the diameter of the bending point 6 is defined, so that the stress affecting the whole flexible circuit board is prevented from being caused by the excessive diameter of the bending point 6. Wherein the shape of the bending point 6 is preferably a circular copper disc.
In the flexible circuit board for reducing the tearing force according to the present utility model, the distance between the bending point 6 and the edge of the circuit board body 1 is 0.45mm, and the diameter of the bending point 6 is 0.6mm. Specifically, a round copper foil with the diameter of 0.6mm is added at the position of the bending point 6 with the distance of 0.45mm, so that stress is transferred to the bending point 6, and the local stress intensity of the flexible circuit board is enhanced.
The working principle of the utility model is as follows:
divide into crimping district 3, switching district 4 and main part district 5 with circuit board body 1, and switching district 4 is the trapezoid structure, and increase a plurality of inflection points 6 between switching district 4 and main part district 5, can shift the atress of flexible circuit board to inflection point 6, help reinforcing flexible circuit board's local stress intensity, avoid flexible circuit board to receive tearing the power damage, help improving the quality and the stability in use of product.
Second embodiment
Unlike the first embodiment, the following is: the pressing area 3 and the switching area 4 of the present embodiment are symmetrically disposed at two ends of the main body area 5, that is, two ends of the circuit board body 1 are provided with ITO pressing ends of the pressing area 3, the metal foil 2 forms a plurality of circuits in the circuit board body 1, the circuits are connected to the metal foil 2 of the ITO pressing ends, the ITO pressing ends of the two ends of the circuit board body 1 are connected, and the electrical connection between the parts is realized.
Other structures are the same as those of the first embodiment, and will not be described here again.
Embodiment III
Unlike the first embodiment, the following is: the pressing area 3, the switching area 4 and the main body area 5 of the embodiment are of an integrated structure, which is helpful for improving the mechanical strength of the circuit board body 1, thereby prolonging the service life of the flexible circuit board, and the pressing area 3 is an ITO pressing end.
Other structures are the same as those of the first embodiment, and will not be described here again.
Variations and modifications of the above embodiments will occur to those skilled in the art to which the utility model pertains from the foregoing disclosure and teachings. Therefore, the present utility model is not limited to the above-described embodiments, but is intended to be capable of modification, substitution or variation in light thereof, which will be apparent to those skilled in the art in light of the present teachings. In addition, although specific terms are used in the present specification, these terms are for convenience of description only and do not limit the present utility model in any way.
Claims (10)
1. A flexible circuit board for reducing the tearing force, characterized by comprising a circuit board body (1) and a metal foil (2) printed on the circuit board body (1);
the circuit board body (1) comprises a pressing area (3), a switching area (4) and a main body area (5) which are sequentially arranged along the length direction;
the switching area (4) is of an inverted trapezoid structure, and a plurality of bending points (6) are arranged between the switching area (4) and the main body area (5).
2. A flexible circuit board for reducing tear force according to claim 1, wherein: the number of the bending points (6) is two, and the bending points (6) are positioned at two ends of the circuit board body (1) in the width direction.
3. A flexible circuit board for reducing tear force according to claim 1, wherein: the distance between the center of the bending point (6) and the edge of the circuit board body (1) is 0.25mm-0.65mm.
4. A flexible circuit board for reducing tear force according to claim 3, wherein: the distance between the center of the bending point (6) and the edge of the circuit board body (1) is 0.45mm.
5. A flexible circuit board for reducing tear force according to claim 1, wherein: the diameter of the bending point (6) is 0.4mm-0.8mm.
6. A flexible circuit board for reducing tear force according to claim 5, wherein: the diameter of the bending point (6) is 0.6mm.
7. A flexible circuit board for reducing tear force according to claim 1, wherein: the pressing area (3) and the transfer area (4) are symmetrically arranged at two ends of the main body area (5).
8. A flexible circuit board for reducing tear force according to claim 1, wherein: the metal foil (2) forms a plurality of lines in the circuit board body (1), and the lines are connected to the metal foil (2) of the pressing area (3).
9. A flexible circuit board for reducing tear force according to claim 1, wherein: the pressing area (3), the switching area (4) and the main body area (5) are of an integrated structure.
10. A flexible circuit board for reducing tear force according to claim 1, wherein: the pressing area (3) is an ITO pressing end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223024799.7U CN219068461U (en) | 2022-11-15 | 2022-11-15 | Flexible circuit board for reducing tearing force |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223024799.7U CN219068461U (en) | 2022-11-15 | 2022-11-15 | Flexible circuit board for reducing tearing force |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219068461U true CN219068461U (en) | 2023-05-23 |
Family
ID=86371562
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223024799.7U Active CN219068461U (en) | 2022-11-15 | 2022-11-15 | Flexible circuit board for reducing tearing force |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219068461U (en) |
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2022
- 2022-11-15 CN CN202223024799.7U patent/CN219068461U/en active Active
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