TWM561898U - Composite soft cable combination - Google Patents

Abstract

A composite flexible cable assembly includes a flexible flat cable, a bonding layer, a plurality of micro-coaxial cables, and an outer cover layer. The flexible flat cable has a plurality of conductors and an insulating layer, the plurality of conductors conducting electrical power, and the insulating layer covering the plurality of conductors. The bonding layer is disposed on the upper surface of the insulating layer. a plurality of micro-coaxial cables are adhered to the flexible flat cable by the bonding layer; each micro-coaxial cable has a round core wire and an insulating coating layer; the insulating coating layer covers the round core wire, and the core wire Transmit the signal. The outer cover covers a plurality of micro-coaxial cables.

Description

Composite soft cable combination

The present invention relates to a composite flexible cable combination, in particular to a flexible cable combination composited with a flexible flat cable and a plurality of micro coaxial cables.

Flexible connectors, or flexible connectors, have been widely used in many electrical devices to form electrical connections between board-to-board or moving parts and motherboards. For example, a flexible cable can be used to electrically connect a liquid crystal display (LCD) of a notebook computer to a motherboard.

One of the conventional flexible connecting wires is a flexible flat cable (FFC). The flexible flat cable includes a plurality of flat conductors wrapped in the middle of the insulating material, but the flexible flat cable is used to transmit high frequency signals. It is easy to cause noise interference and crosstalk noise. Another common type of flexible connecting cable is a Micro-Coaxial Cable Assembly (MCX), which is suitable for high-speed transmission of electronic products, with a special shielding layer to achieve low attenuation, high bending times, and can be reduced Space agency restrictions. It has high-speed transmission, low electromagnetic wave and thin and light features. However, the core of the micro-coaxial cable has a small core diameter and cannot be loaded with a large current.

The present invention provides a composite flexible cable combination that provides good transmission of high frequency signals without increasing the width of the overall cable. A combination of flexible flexible cable that meets the needs of high current transmission.

For the purposes described above, a composite flexible cable assembly according to one embodiment of the present invention includes a flexible flat cable, a bonding layer, a plurality of micro-coaxial cables, and an outer cover layer. The flexible flat cable has a plurality of conductors and an insulating layer, the plurality of conductors conducting electrical power, and the insulating layer encasing a plurality of the conductors. A bonding layer is disposed on an upper surface of the insulating layer. a plurality of micro-coaxial cables are adhered to the flexible flat cable by the bonding layer; each of the micro-coaxial cables has a round core wire and an insulating coating layer; The round core wire is covered, and the round core wire transmits a signal. The outer cover covers a plurality of the micro-coaxial cables.

The beneficial effect of the present invention may be that the composite flexible cable combination provided by the present embodiment can arrange a plurality of micro-coaxial cables and conductors of the flexible flat cable to be stacked above and above, thereby saving the overall area. Avoid increasing the width. The micro-coaxial cable can transmit high-frequency signals well, and the flexible flat cable can meet the requirements of high-current transmission. Furthermore, the micro-coaxial cable can help to strengthen the exposed end of the flexible flat cable, reduce deformation or tilting, and smoothly insert the electrical connector for easy assembly.

In order to further understand the features and technical contents of the present invention, please refer to the following detailed description and drawings of the present invention. However, the drawings are only for reference and explanation, and are not intended to limit the creation.

1, 1a‧‧‧Composite flexible cable combination

10‧‧‧Flexible flat cable

12‧‧‧Conductor

13‧‧‧Adhesive layer

14a, 14b‧‧‧Insulation film

20‧‧‧ joint layer

30‧‧‧Micro-shaped coaxial cable

31‧‧‧round wire

32‧‧‧Insulation coating

33‧‧‧Shield

34‧‧‧ outer layer

40, 40a‧‧‧ outer cover

41‧‧‧ top

42‧‧‧ wing

1 is an exploded perspective view of a first embodiment of a composite flexible cable assembly according to the present invention.

FIG. 2 is a perspective assembled view of the first embodiment of the composite flexible cable combination according to the present invention.

Figure 3 is a front elevational view of the first embodiment of the composite flexible cable assembly of the present invention.

Fig. 4 is an enlarged view of a portion IV of Fig. 3.

Fig. 5 is an exploded perspective view showing the second embodiment of the composite flexible cable assembly of the present invention.

Fig. 6 is a perspective assembled view of the second embodiment of the composite flexible cable assembly of the present invention.

Figure 7 is a front elevational view of the second embodiment of the composite flexible cable assembly of the present invention.

Figure 8 is an enlarged view of a portion VIII of Figure 7.

[First Embodiment]

Referring to FIG. 1 to FIG. 4, the present invention provides a composite flexible cable assembly 1 comprising a flexible flat cable 10, a bonding layer 20, a Micro-Coaxial Cable (MCX) 30, and an external device. Cloth 40.

The flexible flat cable 10 has a plurality of flat conductors 12 and a flat insulating layer. In this embodiment, the conductors 12 may be tinned copper wires for conducting power, but are not limited thereto. For example, the conductors 12 may also be used to transmit general (non-high frequency) signals, such as grounding. An insulating layer (reference numerals 14a, 14b) covers the conductors 12. As shown in FIG. 4, in the present embodiment, the insulating layer may be composed of a pair of insulating films 14a, 14b, and the insulating films 14a, 14b may be made of a polyester resin (such as polyethylene terephthalate: Polyethylene Terephthalate, The pair of insulating films 14a and 14b are press-bonded to both sides of the conductors 12 by the adhesive layer 13. The adhesive layer 13 may be made of, for example, a thermoplastic resin, a thermosetting resin, or an ultraviolet curable resin.

As shown in FIGS. 1 and 4, the bonding layer 20 is disposed on the upper surface of the insulating layer, and FIG. 1 of the present embodiment is only a schematic view. This embodiment is an outer surface of the insulating film 14a attached to the upper side. However, the flexible flat cable 10 is vertically symmetrical, and the bonding layer 20 may be disposed on the outer surface of the lower insulating film 14b. The bonding layer 20 may be a double-sided tape or a hardened material, for example, a thermoplastic resin, a thermosetting resin, or an ultraviolet curable resin.

A plurality of micro-coaxial cables 30 are adhered to the flexible flat cable 10 by a bonding layer 20; each micro-coaxial cable 30 has a conductor 31 and an insulating core Layer) 32. The core wire 31 may be a single or multiple strands of alloy wire. The insulating core 32 covers the core wire 31. In the embodiment, the core wire 31 is used for transmitting signals, and is particularly suitable for transmitting high frequency signals, but is not limited thereto.

Each micro-coaxial cable 30 of this embodiment also has a shielding layer (metallic A shielding layer 33, and a jacket layer 34. The shielding layer 33 covers the insulating coating layer 32, and the outer covering layer 34 covers the shielding layer 33. Specifically, the above-mentioned mask layer 33 may be a function of winding a plurality of tin-copper alloy wires to achieve a mask. The outer layer 34 may be a copper foil plus a fluoropolymer, and the fluoropolymer film may be, for example, PFA (tetrafluoroethylene-perfluoroalkoxy vinyl ether copolymer, aka, perfluoroalkylate), PFA. Has a very small surface tension and good corrosion resistance.

As shown in FIG. 3 and FIG. 4 , in the embodiment, the micro-coaxial cable 30 is covered by an outer cover layer 40 and can be adhered to the outer side of the micro-coaxial cable 30 by the bonding layer 20 . The outer cover 40 of the present embodiment is made of an insulating material. The width of the outer cover 40 may be the two micro-coaxial cables 30 that cover the outermost side.

As shown in FIG. 3, the pitch between the plurality of micro-coaxial cables 30 of the composite flexible cable combination 1 of the present invention is equal to each other. The number of conductors 12 of the flexible flat cable 10 is greater than the number of the micro-coaxial cables 30.

In the process, the creative method is to first bond the micro-coaxial cable 30 to the outer cover 40 to form a micro-coaxial cable, and then adhere to the micro-layer by the bonding layer 20. The outer side of the coaxial cable 30. The micro-coaxial cables 30 can be bonded to the outer cover 40 in an equally spaced manner.

According to the specific structural arrangement of the embodiment, the outer diameter of the micro-coaxial cable 30 may be 0.35 mm, but is not limited thereto, and may be 0.6 mm, 0.8 mm, 1.13 mm, 1.37 mm. The thickness of the flexible flat cable 10 may be less than 0.35 mm, and more specifically may be less than 2.1 mm. The overall thickness of the composite flexible cable combination 1 of the present invention may be less than 0.7 mm. The spacing between the micro-coaxial cables 30 can be less than the outer diameter of the micro-coaxial cable 30. In other words, the pitch between the conductors 12 of adjacent flexible flat wires 10 is less than twice the outer diameter of the micro-coaxial cable 30, i.e., less than 0.7 mm.

As shown in FIG. 3 and FIG. 4, the micro-coaxial cable 30 and the flexible flat cable 10 of the composite flexible cable combination 1 of the present invention are arranged in a stacked manner. A possible implementation in which each micro-coaxial cable 30 and flexible flat cable 10 The conductors 12 are arranged in a one-to-one or more stacked manner, but are not limited thereto. The composite flexible cable combination 1 of the present invention is a stacked manner, and the micro-coaxial cable and the flexible flat cable are not arranged side by side in the same layer, which can save the overall area and avoid increasing the width. Moreover, the micro-coaxial cable 30 can assist in reinforcing the exposed end of the flexible flexible flat cable 10, reducing deformation or tilting, and smoothly inserting the electrical connector for assembly.

The composite flexible cable combination 1 of the present invention is advantageous for small-sized electronic products, since each micro-shaped coaxial cable 30 is composed of a coaxial type (Coaxial), thereby reducing the generation of noise and improving the resistance to external interference. ability. The composite flexible cable combination 1 of the present invention can transmit high-frequency signals by using the micro-coaxial cable 30 as needed, and transmit power or general non-high-frequency signals by using the flexible flat cable 10, thereby reducing noise interference and avoiding stringing. Crosstalk.

[Second embodiment]

Referring to FIG. 5 to FIG. 8 , the composite flexible cable assembly 1 a of the present embodiment is different from the above embodiment in that the width of the outer cover layer 40 a is greater than the overall width of the plurality of the micro-coaxial cables 30 , and It extends to the surface of the flexible flat cable 10. As shown in FIG. 7, the outer cover layer 40a has a width that exceeds the outermost micro-coaxial cable 30 by approximately twice the pitch between adjacent conductors 12. In particular, the outer cover 40a includes a top portion 41 and a pair of wings 42 that are attached to the surface of the flexible flat cable 10 and that cover two adjacent conductors 12. Thereby, the micro-coaxial cables 30 are more stably covered to prevent the external force from causing the peeling of the micro-coaxial cable 30.

The above is only an example of the composite flexible cable combination of the present invention. The present invention is not limited thereto. For example, the flexible flat cable 10 may be provided with a plurality of micro-coaxial cables 30 on both sides. Alternatively, two flexible flat cables 10 may be provided to hold the plurality of micro-coaxial cables 30 in the middle.

In summary, the beneficial effect of the present invention may be that the composite flexible cable combination provided by the present embodiment provides a plurality of micro-coaxial cables 30 and flexible flat cables 10 The conductors 12 are arranged in a stacked manner above and below. In this manner of stacking, the micro-coaxial cable 30 and the flexible flat cable 10 are not arranged side by side in the same layer, which can save the overall area and avoid increasing the width. The conductors 12 are used to conduct electrical power or general (non-high frequency) signals to meet high current transmission requirements. The micro-coaxial cable 30 can transmit high-frequency signals well and improve the ability to resist external interference. Moreover, the micro-coaxial cable 30 can assist in reinforcing the exposed end of the flexible flexible flat cable 10, reducing deformation or tilting, and smoothly inserting the electrical connector for assembly.

The above description is only a preferred and feasible embodiment of the present invention, and thus does not limit the scope of the patent of the present invention. Therefore, any equivalent technical changes made by using the present specification and the contents of the schema are included in the scope of protection of the present creation. .

Claims (8)

A composite flexible cable assembly comprising: a flexible flat cable having a plurality of conductors and an insulating layer, a plurality of the conductors conducting electrical power, the insulating layer covering a plurality of the conductors; a bonding layer disposed on An upper surface of the insulating layer; a plurality of micro-coaxial cables adhered to the flexible flat cable by the bonding layer; each of the micro-coaxial cables has a round core wire and an insulating coating The insulating coating layer covers the round core wire, the round core wire transmits a signal, and the outer cover layer covers a plurality of the micro-shaped coaxial cables. The composite flexible cable combination according to claim 1, wherein each of the micro-coaxial cables further has a shielding layer and an outer layer, and the shielding layer covers the insulating coating layer. The outer layer covers the shielding layer. The composite flexible cable assembly of claim 1, wherein each of the micro-coaxial cables and the conductors of the flexible flat cable are arranged in a one-to-one stack. The composite flexible cable combination according to claim 3, wherein a spacing between the plurality of the micro-coaxial cables is equal to each other. The composite flexible cable combination of claim 1, wherein the number of the conductors of the flexible flat cable is greater than the number of the micro coaxial cables. The composite flexible cable combination of claim 1, wherein the outer cover layer has a width greater than a plurality of the micro-coaxial cables and extends to a surface of the flexible flat cable. The composite flexible cable combination of claim 6, wherein the outer cover layer has a width that exceeds the outermost one of the micro-coaxial cables and has twice the spacing between the adjacent conductors. The composite flexible cable combination according to claim 1, wherein the composite flexible cable combination has a thickness of less than 0.7 mm.