Split foldable flexible flat cable (FFC) wire harness

By designing a split-strand foldable FFC wire harness, using folding structure and Maila tape connection, the high design cost, easy circuit breaking and low yield rate of FPC wire harness in component connection is solved, achieving lower production costs, higher flexibility and yield rate.

CN222582650UActive Publication Date: 2025-03-07JINGSHI ELECTRONICS TECH CO LTD SUZHOU
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Patent Information

Application Number
CN202421239841.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-06-03
Publication Date
2025-03-07
Estimated Expiration
2034-06-03

AI Technical Summary

Technical Problem

The existing FPC wiring harness has problems such as high design cost, easy circuit breakage, low yield and high printing etch pollution in component connections.

Method used

A split-strand foldable FFC wire harness is designed. By setting the first bending line and the second bending line at both ends of the FFC wire harness body, multiple folding areas are formed, and connected by ring-packed black mala tape, reducing the connection space and improving flexibility.

Benefits of technology

The connection space is reduced through secondary folding, the connection flexibility is improved, the production cost is reduced, and the yield rate is improved.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a split foldable FFC wire harness, two ends of an FFC wire harness body are respectively provided with a first bending line, adjacent first bending lines are symmetrically arranged, two ends of the FFC wire harness body are folded inwards from the first bending lines to form a first folding area, a second bending line is arranged between adjacent first bending lines, the second bending line is parallel to the side edge of the FFC wire harness body, and the first folding area and the second folding area are arranged on the FFC wire harness body. The middle of the FFC wire harness body which is folded to form the first folding area is folded inwards along a second bending line to form a second folding area, so that the second folding area is formed above the first folding area, the two ends of the second folding area are overlapped with the upper portion of the first folding area to form a triangular overlapping area, and the side edge of the second folding area is overlapped with the side edge of the FFC wire harness body; the second folding area is connected with the FFC wire harness body below through the surrounding black mylar adhesive tape, an FPC wire harness is replaced, the connection space is greatly reduced through secondary folding, the connection flexibility is improved, and the production cost is low.
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Description

Technical Field

[0001] The utility model relates to the technical field of wire harnesses, and more specifically to a split and foldable FFC wire harness. Background Art

[0002] FPC is the abbreviation of Flexible Printed Circuit, also known as flexible printed circuit board, which is a type of printed circuit board (PCB, Printed Circuit Board). It is a key electronic interconnection part of electronic products. It connects various electronic components through circuits to play the role of conduction and transmission.

[0003] Although the FPC harness is used to connect components, it is processed once by printing, which has high design costs, easy circuit breaking, low yield rate, and high printing and etching pollution.

[0004] In view of this, the utility model provides a foldable FFC wire harness which has a small connection space and is split and foldable. Utility Model Content

[0005] The utility model aims to provide a foldable FFC wire harness which has a small connection space and is split and foldable.

[0006] A split and foldable FFC harness comprises an FFC harness body 1, characterized in that: first bending lines 14 are provided at both ends of the FFC harness body 1, adjacent first bending lines 14 are symmetrically arranged, both ends of the FFC harness body 1 are folded inwardly by the first bending lines 14 to form a first folding area 2, a second bending line 15 is provided between adjacent first bending lines 14, the second bending line 15 is parallel to the side of the FFC harness body 1, the middle part of the FFC harness body 1 folded to form the first folding area 2 is folded inwardly along the second bending line 15 to form a second folding area 3, so that the second folding area 3 is above the first folding area 2, the two ends of the second folding area 3 overlap with the top of the first folding area 2 and form a triangular overlapping area 4, the side of the second folding area 3 overlaps with the side of the FFC harness body 1, and the second folding area 3 is connected to the FFC harness body 1 below by a ring-wrapped black Mylar tape 5.

[0007] Furthermore, the first bending line 14 forms an angle of 45° with both sides of the FFC harness body 1 , so that the first folding area 2 forms a 90° angle with the FFC harness body 1 near the middle end of the FFC harness body 1 .

[0008] Furthermore, the first folding area 2 is in the shape of a right-angled trapezoid.

[0009] In some embodiments, the FFC harness body 1 includes an insulating film 6 and a conductor 7 . The insulating film 6 has two layers, and a plurality of conductors 7 are spaced apart between adjacent insulating films 6 .

[0010] In some embodiments, the FFC harness body 1 includes an internal connection part 8, an external connection part 9, and a stripped FFC harness part 10. The stripped FFC harness part 10 is provided with an internal connection part 8 at both ends, and an external connection part 9 is provided on the outside of the internal connection part 8. The external connection part 9 is connected to an external electronic device.

[0011] Furthermore, the side of the inner connecting portion 8 is equal to or lower than the side of the outer connecting portion 9. Preferably, the side of the inner connecting portion 8 is lower than the side of the outer connecting portion 9 to reduce the occupied area.

[0012] Furthermore, an inwardly inclined edge 11 is formed at the connection between the inner connecting portion 8 and the outer connecting portion 9, and the inwardly inclined edge 11 has an angle of 120°-135°, which prevents the connection between the inner connecting portion 8, the outer connecting portion 9, and the stripped FFC harness portion 10 from being torn.

[0013] In some embodiments, anti-tilt plate layers 12 are further provided at both ends above the FFC harness body 1 to prevent the PIN pins of the conductor 7 inside the FFC harness body 1 from tilting.

[0014] In some embodiments, reinforcing plate layers 13 are further provided at both ends below the FFC harness body 1 to reinforce the structural strength of the inner connecting portion 8 , the outer connecting portion 9 and the stripped FFC harness portion 10 .

[0015] The beneficial effects of the utility model: the utility model proposes a split and foldable FFC harness, both ends of the FFC harness body 1 are provided with a first bending line 14, adjacent first bending lines 14 are symmetrically arranged, both ends of the FFC harness body 1 are folded inwardly by the first bending line 14 to form a first folding area 2, a second bending line 15 is provided between adjacent first bending lines 14, the second bending line 15 is parallel to the side of the FFC harness body 1, the middle part of the FFC harness body 1 folded to form the first folding area 2 is folded inwardly along the second bending line 15 to form a second folding area 3, so that the second folding area 3 is above the first folding area 2, the two ends of the second folding area 3 overlap with the top of the first folding area 2 and form a triangular overlapping area 4, the side of the second folding area 3 overlaps with the side of the FFC harness body 1, the second folding area 3 is connected to the FFC harness body 1 below by a ring-wrapped black Mylar tape 5, replacing the FPC harness, and the connection space is greatly reduced through secondary folding, the connection flexibility is improved, and the production cost is low. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the structure of a split and foldable FFC wire harness of the present application.

[0017] Figure 2 This is a schematic diagram of the structure of a split and foldable FFC wire harness of the present application.

[0018] Figure 3 It is a side view of a split and foldable FFC wire harness of the present application.

[0019] Figure 4 This is an expanded view of a split and foldable FFC wire harness of Example 1.

[0020] Figure 5 This is an expanded view of a split and foldable FFC wire harness of Example 2.

[0021] Main component symbols

[0022]

[0023]

[0024] The following specific implementation manner will further illustrate the present utility model in conjunction with the above-mentioned drawings. DETAILED DESCRIPTION

[0025] The following examples are described to assist the understanding of the present application, and the examples are not and should not be interpreted in any way as limiting the scope of protection of the present application.

[0026] In the following description, those skilled in the art will recognize that throughout this discussion, components may be described as separate functional units (which may include sub-units), but those skilled in the art will recognize that various components or portions thereof may be divided into separate components or may be integrated together (including within a single system or component).

[0027] At the same time, the connections between components or systems are not intended to be limited to direct connections, rather, the data between these components may be modified, reformatted, or otherwise changed by intermediate components. In addition, additional or fewer connections may be used. It should also be noted that the terms "coupled," "connected," or "input" should be understood to include direct connections, indirect connections through one or more intermediate devices, and wireless connections.

[0028] Embodiment 1:

[0029] like Figure 1 As shown, it is a schematic diagram of the structure of a split and foldable FFC wire harness of the present application; Figure 2 As shown, it is a schematic diagram of the structure of a split and foldable FFC wire harness of the present application; Figure 3 As shown, it is a side view of a split and foldable FFC wire harness of the present application; Figure 4 As shown, it is an expanded view of a split and foldable FFC wire harness of Example 1.

[0030] A split and foldable FFC harness comprises an FFC harness body 1, characterized in that: first bending lines 14 are provided at both ends of the FFC harness body 1, adjacent first bending lines 14 are symmetrically arranged, both ends of the FFC harness body 1 are folded inwardly by the first bending lines 14 to form a first folding area 2, a second bending line 15 is provided between adjacent first bending lines 14, the second bending line 15 is parallel to the side of the FFC harness body 1, the middle part of the FFC harness body 1 folded to form the first folding area 2 is folded inwardly along the second bending line 15 to form a second folding area 3, so that the second folding area 3 is above the first folding area 2, the two ends of the second folding area 3 overlap with the top of the first folding area 2 and form a triangular overlapping area 4, the side of the second folding area 3 overlaps with the side of the FFC harness body 1, and the second folding area 3 is connected to the FFC harness body 1 below by a ring-wrapped black Mylar tape 5.

[0031] The first bending line 14 forms an angle of 45° with both sides of the FFC harness body 1 , so that the first folding area 2 forms a 90° angle with the FFC harness body 1 near the middle end of the FFC harness body 1 .

[0032] The first folding area 2 is in the shape of a right-angled trapezoid.

[0033] The FFC harness body 1 comprises an insulating film 6 and a conductor 7 . The insulating film 6 has two layers, and a plurality of conductors 7 are arranged between adjacent insulating films 6 .

[0034] The FFC harness body 1 includes an inner connection part 8, an outer connection part 9, and a stripped FFC harness part 10. The stripped FFC harness part 10 has inner connection parts 8 at both ends, and an outer connection part 9 is provided outside the inner connection part 8. The outer connection part 9 is connected to an external electronic device.

[0035] The side of the inner connecting portion 8 is equal to or lower than the side of the outer connecting portion 9. Preferably, the side of the inner connecting portion 8 is lower than the side of the outer connecting portion 9 to reduce the occupied area.

[0036] Anti-tilt plate layers 12 are also provided at both ends above the FFC harness body 1 to prevent the PIN pins of the conductor 7 inside the FFC harness body 1 from tilting.

[0037] Reinforcement plate layers 13 are also provided at both ends below the FFC harness body 1 to reinforce the structural strength of the inner connecting portion 8 , the outer connecting portion 9 and the stripped FFC harness portion 10 .

[0038] Embodiment 2:

[0039] like Figure 1 As shown, it is a schematic diagram of the structure of a split and foldable FFC wire harness of the present application; Figure 2As shown, it is a schematic diagram of the structure of a split and foldable FFC wire harness of the present application; Figure 3 As shown, it is a side view of a split and foldable FFC wire harness of the present application; Figure 5 The figure shows an expanded view of a split and foldable FFC wire harness of Example 2.

[0040] A split and foldable FFC harness comprises an FFC harness body 1, characterized in that: first bending lines 14 are provided at both ends of the FFC harness body 1, adjacent first bending lines 14 are symmetrically arranged, both ends of the FFC harness body 1 are folded inwardly by the first bending lines 14 to form a first folding area 2, a second bending line 15 is provided between adjacent first bending lines 14, the second bending line 15 is parallel to the side of the FFC harness body 1, the middle part of the FFC harness body 1 folded to form the first folding area 2 is folded inwardly along the second bending line 15 to form a second folding area 3, so that the second folding area 3 is above the first folding area 2, the two ends of the second folding area 3 overlap with the top of the first folding area 2 and form a triangular overlapping area 4, the side of the second folding area 3 overlaps with the side of the FFC harness body 1, and the second folding area 3 is connected to the FFC harness body 1 below by a ring-wrapped black Mylar tape 5.

[0041] The first bending line 14 forms an angle of 45° with both sides of the FFC harness body 1 , so that the first folding area 2 forms a 90° angle with the FFC harness body 1 near the middle end of the FFC harness body 1 .

[0042] The first folding area 2 is in the shape of a right-angled trapezoid.

[0043] The FFC harness body 1 comprises an insulating film 6 and a conductor 7 . The insulating film 6 has two layers, and a plurality of conductors 7 are arranged between adjacent insulating films 6 .

[0044] The FFC harness body 1 includes an inner connection part 8, an outer connection part 9, and a stripped FFC harness part 10. The stripped FFC harness part 10 has inner connection parts 8 at both ends, and an outer connection part 9 is provided outside the inner connection part 8. The outer connection part 9 is connected to an external electronic device.

[0045] The side of the inner connecting portion 8 is equal to or lower than the side of the outer connecting portion 9. Preferably, the side of the inner connecting portion 8 is lower than the side of the outer connecting portion 9 to reduce the occupied area.

[0046] The connection between the inner connecting part 8 and the outer connecting part 9 forms an inwardly inclined edge 11, and the inwardly inclined edge 11 has an angle of 120°-135°, which plays a role in preventing the connection between the inner connecting part 8, the outer connecting part 9, and the stripped FFC harness part 10 from tearing.

[0047] Anti-tilt plate layers 12 are also provided at both ends above the FFC harness body 1 to prevent the PIN pins of the conductor 7 inside the FFC harness body 1 from tilting.

[0048] Reinforcement plate layers 13 are also provided at both ends below the FFC harness body 1 to reinforce the structural strength of the inner connecting portion 8 , the outer connecting portion 9 and the stripped FFC harness portion 10 .

[0049] Although the present application has disclosed multiple aspects and embodiments, other aspects and embodiments will be obvious to those skilled in the art, and several modifications and improvements may be made without departing from the concept of the present application, all of which belong to the protection scope of the present application. The multiple aspects and embodiments disclosed in the present application are only for illustration and are not intended to limit the present application. The actual protection scope of the present application shall be subject to the claims.

Claims

1. A split and foldable FFC wire harness, comprising an FFC wire harness body (1), characterized in that: Both ends of the FFC harness body (1) are provided with a first bending line (14), and adjacent first bending lines (14) are symmetrically arranged. The two ends of the FFC harness body (1) are folded inwardly by the first bending line (14) to form a first folding area (2). A second bending line (15) is arranged between adjacent first bending lines (14), and the second bending line (15) is parallel to the side of the FFC harness body (1). The middle part of the FFC harness body (1) folded to form the first folding area (2) is folded inwardly along the second bending line (15) to form a second folding area (3), so that the second folding area (3) is located above the first folding area (2), and the two ends of the second folding area (3) overlap with the top of the first folding area (2) to form a triangular overlapping area (4), and the side of the second folding area (3) overlaps with the side of the FFC harness body (1), and the second folding area (3) is connected to the FFC harness body (1) below by a ring-wrapped black Mylar tape (5).

2. The split and foldable FFC harness according to claim 1, characterized in that: The first bending line (14) forms an angle of 45° with the two side edges of the FFC harness body (1), so that the first folding area (2) close to the middle end of the FFC harness body (1) forms a 90° angle with the FFC harness body (1).

3. The split and foldable FFC harness according to claim 1, characterized in that: The first folding area (2) is in the shape of a right-angled trapezoid.

4. The split and foldable FFC harness according to claim 1, characterized in that: The FFC harness body (1) comprises an insulating film (6) and a conductor (7); the insulating film (6) has two layers, and a plurality of conductors (7) are arranged at intervals between adjacent insulating films (6).

5. The split and foldable FFC harness according to claim 1, characterized in that: The FFC harness body (1) comprises an inner connecting portion (8), an outer connecting portion (9), and a stripped FFC harness portion (10). The inner connecting portions (8) are provided at the left and right ends of the stripped FFC harness portion (10). The outer side of the inner connecting portion (8) is provided with an outer connecting portion (9). The outer connecting portion (9) is connected to an external electronic device.

6. The split and foldable FFC harness according to claim 5, characterized in that: The side edge of the inner connecting portion (8) is equal to or lower than the side edge of the outer connecting portion (9).

7. The split and foldable FFC harness according to claim 6, characterized in that: An inwardly inclined edge (11) is formed at the connection between the inner connecting portion (8) and the outer connecting portion (9), and the inwardly inclined edge (11) has an angle of 120°-135°, which serves to prevent the connection between the inner connecting portion (8), the outer connecting portion (9), and the stripped FFC harness portion (10) from being torn.

8. The split and foldable FFC wire harness according to claim 1, characterized in that: Anti-warping plate layers (12) are also provided at both ends above the FFC harness body (1) to prevent the PIN pins of the inner conductors (7) of the FFC harness body (1) from warping.

9. The split and foldable FFC wire harness according to claim 1, characterized in that: Reinforcement plate layers (13) are also provided at both ends below the FFC harness body (1) for reinforcing the structural strength of the inner connecting portion (8), the outer connecting portion (9) and the stripped FFC harness portion (10).