Flat cable overcoming difference in length of inner and outer diameters

Abstract

The present application provides a kind of flat cable overcoming the difference between inner diameter and outer diameter length, comprising: wire body and protective member, wire body includes two superimposed flat cables, at least one flat cable is provided with pre-bending part, pre-bending part protrudes from the plane of flat cable, protective member is sleeved on a part of two superimposed flat cables and accommodates pre-bending part, protective member has opening to allow pre-bending part to pass through opening after stretching.The flat cable overcoming the difference between inner diameter and outer diameter length of the present application can make the bent flat cable no longer have the problem of excessive flexure of outer ring and excessive compression deformation of inner ring due to the mismatch between inner diameter and outer diameter length.

Description

Technical Field

[0001] This invention relates to a flat cable, and more particularly to a flat cable that overcomes the difference in length between the inner and outer diameters. Background Technology

[0002] Flat ribbon cables are made by bonding flat, flexible conductors with a thin, flexible adhesive or paper film at high temperatures. Flat ribbon cables offer advantages such as flexibility, thinness, small size, simple connection, easy disassembly, and easy resolution of electromagnetic interference (EMI). Flat cables typically consist of two flat ribbon cables, one for transmitting and the other for receiving signals.

[0003] However, when flat cables are bent, the outer coils are stretched longer, while the inner coils are compressed and deformed. This can cause difficulty in bending or partial deformation, leading to cable damage. While this problem also occurs in general cables, it is more pronounced in flat cables. Summary of the Invention

[0004] The purpose of this invention is to solve various problems of existing flat cables and to propose a flat cable that overcomes the difference in length between the inner and outer diameters.

[0005] To achieve the above and other objectives, the present invention provides a flat cable that overcomes the difference in inner and outer diameter lengths, comprising: a cable body including two overlapping flat cables, wherein at least one of the flat cables has a pre-bent portion protruding from the plane of the flat cable; and a protective member fitted onto a portion of the two overlapping flat cables and accommodating the pre-bent portion, the protective member having an opening to allow the pre-bent portion to pass through the opening after being stretched.

[0006] Optionally, the pre-bent section has multiple undulations.

[0007] Optionally, the pre-bent portion has elasticity to allow it to retract from the opening into the protective member and protrude from the plane of the flat cable.

[0008] Optionally, each of the two overlapping flat cables has the pre-bent portion, and at least one of the pre-bent portions is accommodated in the protective member.

[0009] Optionally, the two pre-bent portions protrude in opposite directions.

[0010] Alternatively, the two pre-bent portions may be housed within the same protective element.

[0011] Optionally, the two pre-bent portions are located at the two ends of the line.

[0012] Alternatively, the two pre-bent portions are respectively housed within the two protective components.

[0013] Therefore, the flat cable of the present invention overcomes the difference in length between inner and outer diameters through the design of the pre-bending part and the protective component. When the cable body needs to be flexed, the flat cable with the pre-bending part is used as the outer ring and the flat cable without the pre-bending part is used as the inner ring. The flat cable is stretched to release part or all of the length of the pre-bending part to match the flat cable as the inner ring.

[0014] To further understand the features and technical content of the present invention, please refer to the following detailed description and drawings of the invention. However, these descriptions and drawings are only for illustrating the present invention and are not intended to limit the scope of the invention in any way. Attached Figure Description

[0015] Figure 1 This is a three-dimensional schematic diagram of a flat cable that overcomes the difference in length between the inner and outer diameters according to the first embodiment of the present invention.

[0016] Figure 2 This is a side view schematic diagram of a flat cable that overcomes the difference in inner and outer diameter lengths according to the second embodiment of the present invention.

[0017] Figure 3 This is a three-dimensional schematic diagram of a flat cable that overcomes the difference in length between the inner and outer diameters according to the third embodiment of the present invention.

[0018] Figure 4 This is a three-dimensional schematic diagram of a flat cable that overcomes the difference in inner and outer diameter lengths according to the fourth embodiment of the present invention.

[0019] Figure Labels

[0020] 100 Flat Cable

[0021] 100A flat cable

[0022] 100B flat cable

[0023] 100c flat cable

[0024] 1 line body

[0025] 11 Flat ribbon cable

[0026] 111 Pre-bending section

[0027] 12 Flat ribbon cable

[0028] 121 Pre-bending section

[0029] 2 Protective components

[0030] 21 Opening

[0031] 2a Protective components

[0032] 2b Protective components

[0033] 3. Connecting terminals Detailed Implementation

[0034] To fully understand the present invention, the following specific embodiments, in conjunction with the accompanying drawings, will provide a detailed description. Those skilled in the art can understand the purpose, features, and effects of the present invention from the content disclosed in this specification. It should be noted that the present invention can be implemented or applied through other different specific embodiments, and the details in this specification can also be modified and changed based on different viewpoints and applications without departing from the inventive point of the present invention. Furthermore, the accompanying drawings are for simple illustrative purposes only and are not depictions based on actual dimensions. The following embodiments will further describe the relevant technical content of the present invention in detail, but the disclosed content is not intended to limit the claims of the present invention. The following explanation is provided:

[0035] like Figure 1 As shown, the flat cable 100 of the first embodiment of the present invention for overcoming the difference in inner and outer diameter lengths includes: cable body 1 and protective component 2.

[0036] The wire body 1 includes two overlapping flat ribbon cables 11 and 12, wherein at least one flat ribbon cable 11 has a pre-bent portion 111. The pre-bent portion 111 protrudes from the plane of the flat ribbon cable 11. In this embodiment, the pre-bent portion 111 is wavy and has multiple undulations, and if the flat ribbon cable 11 is stretched, the pre-bent portion 111 can release a longer length. However, the invention is not limited to this; the pre-bent portion 111 can have only a single undulation, or various bending and deflecting shapes, thereby compressing the length of the wire in a space.

[0037] The protective member 2 is fitted over a portion of two overlapping flat cables 11, 12 and accommodates a pre-bent portion 111. The protective member 2 has an opening 21 to allow the pre-bent portion 111 to pass through the opening 21 after being stretched. Typically, the opening height of the opening 21 is slightly greater than the overall thickness of the two overlapping flat cables 11, 12, allowing the stretched pre-bent portion 111 to extend out of the opening 21 and retract into the protective member 2 upon the loss of external force. In this embodiment, the protective member 2 is in the form of a housing; however, the invention is not limited thereto. In other embodiments, the protective member 2 can be of other shapes, providing space to accommodate and protect the pre-bent portion 111. Preferably, the protective member 2 is fixedly connected to the connection terminal 3 of the flat cable 100 so that the position of the protective member 2 is not affected by the movement of the cable 1.

[0038] By designing the pre-bending portion 111 and the protective element 2, when bending the wire 1, the flat ribbon cable 11 with the pre-bending portion 111 is used as the outer ring, and the flat ribbon cable 12 without the pre-bending portion 111 is used as the inner ring. Then, the flat ribbon cable 11 is stretched to release part or all of the length of the pre-bending portion 111 to match the flat ribbon cable 12 as the inner ring. When the wire 1 is no longer bent, the excess length of the flat ribbon cable 11 is folded back into the protective element 2, thus matching the lengths of the flat ribbon cables 11 and 12 again.

[0039] Furthermore, in this embodiment, the pre-bent portion 111 has elasticity to allow it to retract from the opening 21 into the protective member 2 and protrude from the plane of the flat cable 11. However, the invention is not limited thereto. In other embodiments, if it is determined that the flat cable 100 is used only once or has a constant curvature, the pre-bent portion 111 does not necessarily need to be configured to have the ability to automatically retract into the protective member 2 for reuse.

[0040] like Figure 2 As shown, the present invention further proposes a second embodiment of a flat cable 100a that overcomes the difference in inner and outer diameter lengths. The difference between this and the first embodiment is that in the second embodiment, each of the two overlapping flat cables 11 and 12 has a pre-bent portion 111 and 121, at least one of which is accommodated in the protective member 2. The design of the flat cables 11 and 12 each having a pre-bent portion 111 and 121 allows for applications with varying curvatures, and eliminates the need for any one flat cable to be used as the outer ring; either flat cable can be used as either the inner or outer ring.

[0041] In this embodiment, the two pre-bent portions 111 and 121 protrude in opposite directions, and the two pre-bent portions 111 and 121 are accommodated in the same protective member 2.

[0042] However, the present invention is not limited thereto; in other embodiments, such as Figure 3 As shown, the present invention further proposes a third embodiment of a flat cable 100b that overcomes the difference in length between the inner and outer diameters. The difference between this and the second embodiment is that the two pre-bending portions 111 and 121 in the third embodiment are located at both ends of the cable body 1. However, the present invention is not limited to this; in other embodiments, the pre-bending portion 121 can also be located at any position on the cable body 1, such as the middle section of the cable body 1, to accommodate special bending requirements.

[0043] like Figure 4 As shown, the present invention further proposes a fourth embodiment of a flat cable 100c that overcomes the difference in length between the inner and outer diameters. The difference between this and the third embodiment is that the two pre-bent portions 111 and 121 are respectively housed in two protective members 2a and 2b. Therefore, the two pre-bent portions 111 and 121 at different locations can both be adequately protected.

[0044] The present invention has been disclosed above with reference to preferred embodiments. However, those skilled in the art should understand that the embodiments are for illustrative purposes only and should not be construed as limiting the scope of the invention. It should be noted that all variations and substitutions equivalent to the described embodiments should be included within the scope of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope defined in the claims.

Claims

1. A flat cable that overcomes the difference in length between its inner and outer diameters, characterized in that, The flat cable that overcomes the difference in length between the inner and outer diameters includes: A line body comprising two overlapping flat ribbon cables, wherein at least one of the flat ribbon cables has a pre-bent portion protruding from the plane of the flat ribbon cable; and A protective element, fitted over a portion of the two overlapping flat cables and accommodating the pre-bent portion, the protective element having an opening to allow the pre-bent portion to pass through the opening after being stretched.

2. The flat cable for overcoming the difference in inner and outer diameter lengths according to claim 1, characterized in that, The pre-bent section has multiple undulations.

3. The flat cable for overcoming the difference in inner and outer diameter lengths according to claim 1, characterized in that, The pre-bent portion has elasticity to allow it to retract from the opening into the protective member and protrude from the plane of the flat cable.

4. The flat cable for overcoming the difference in inner and outer diameter lengths according to claim 1, characterized in that, The two overlapping flat cables each have the pre-bent portion, and at least one of the pre-bent portions is accommodated in the protective member.

5. The flat cable for overcoming the difference in inner and outer diameter lengths according to claim 4, characterized in that, The two pre-bent portions protrude in opposite directions.

6. The flat cable for overcoming the difference in inner and outer diameter lengths according to claim 4, characterized in that, The two pre-bent portions are housed within the same protective element.

7. The flat cable for overcoming the difference in inner and outer diameter lengths according to claim 4, characterized in that, The two pre-bent sections are located at both ends of the line.

8. The flat cable for overcoming the difference in inner and outer diameter lengths according to claim 4, characterized in that, The two pre-bent portions are respectively housed in the two protective components.

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