TWM453945U - Cable structure - Google Patents

Description

Cable structure

The present invention relates to a cable structure, in particular to a cable structure having a partial deflection with better flexibility and good electromagnetic interference prevention characteristics.

Flexible flat cable (FFC) has been used as a signal transmission method in electronic products for many years. Due to its advantages of thinness, good flexibility, low cost and strong signal transmission capability, it is not easy to be used. Other transmission methods have been replaced, and the application range and number of flexible cables have been growing in recent years.

The structure of the flexible cable is very simple, and mainly includes a plurality of metal wires and an insulating layer arranged in parallel, and in order to maintain the flexible cable without external electromagnetic interference, a metal layer such as aluminum foil or silver paste is usually formed around the flexible cable. Layers to form good electromagnetic shielding.

In addition, in order to enable the flexible cable to extend through a specific area within the electronic product, the flexible cable can be subjected to a line assembly process, and the portion after the line is assembled has a very small width, and can adapt to various narrow bending conditions. Although it reduces part of the flexibility, it allows the flexible cable to pass through a space much smaller than its original width. However, if the specific area has a function of repetitive action at the same time, for example, a pivot portion of the notebook computer, the problem of insufficient flexibility may occur after the portion of the line is assembled.

The conventional flexible cable has a small width to accommodate a narrow bending space after the split line is assembled, but the opposite may result in a poorly flexible condition, particularly in the case of a mechanism that needs to be repeatedly bent.

The present invention provides a cable structure comprising: a flexible cable, the flexible cable is composed of a plurality of metal wires and an insulating layer covering the metal wires up and down, and has a pair of front plug ends and a rear plug a shielding layer covering a flexible cable, the shielding layer having a vacant portion; wherein a plurality of dividing lines are formed between the front plug end and the rear plug end, the vacant portion Corresponding to at least one of the dividing lines, a single-sided shielding area is formed on at least one of the dividing lines.

The present invention provides a cable structure in which the shielding layer includes an upper shielding layer attached to the upper surface of the flexible cable and a lower shielding layer attached to the lower surface of the flexible cable, the front connector and the front connector The rear plug end is exposed outside the shielding layer.

The present invention proposes a wire arranging structure in which the vacant portion is formed only on the upper shielding layer or the lower shielding layer.

The present invention proposes a wire arranging structure in which the vacant portion is plural and can be simultaneously formed on the upper shielding layer and the lower shielding layer.

The present invention provides a cable structure in which the plurality of branch lines overlap each other to form a collection portion, and the assembly portion further includes a bending region corresponding to the one-sided shielding region of at least one of the partial lines. Therefore, the bent region has better flexibility.

Referring to the first to third figures of the specification, the flexible flat cable 10 is composed of a plurality of metal wires 11 arranged in parallel with each other, and an insulating layer 12 covering the metal wires 11 up and down. The flexible cable 10 has a long strip shape with an opposite upper surface 13 and a lower surface 14. A front plug end 20 and a rear plug end 30 are respectively disposed at opposite ends, and the metal wire 11 can be exposed to the front plug. End 20 or rear plug 30.

The shielding layer 40 is made of a metal material, such as an aluminum foil, a copper foil or an arbitrary metal composite layer. The shielding layer 40 is mainly divided into two parts, an upper shielding layer 41 and a lower shielding layer 42 respectively, and is attached to the upper surface 13 and the lower surface 14 respectively to make the soft layer. The cable 10 has a good shielding effect to maintain high frequency electrical characteristics, and its coverage extends approximately from the vicinity of the front plug end 20 to the position adjacent to the rear plug end 30, but is not in direct contact with the aforementioned metal wire 11. Further, a vacant portion 43 is formed at an appropriate position of the upper shielding layer 41.

In order to reduce the width to meet the requirements of the use environment, the flexible cable 10 can perform a slitting operation on the middle portion of the flexible cable 10 along the length direction to form a plurality of branch lines 15. The branch line 15 is between the front plug end 20 and the rear plug end 30, and the number and length thereof can be arbitrarily changed according to requirements. As shown in the first embodiment, the number of the split lines 15 is six. The length extends from the front front end 20 toward the rear plug end 30, and the split line 15 is not formed adjacent the rear plug end 30 to form a non-separated area 16.

Since the shielding layer 40 is attached to the flexible cable 10 before the branching line 15 is cut, the dividing line 15 is cut together with the shielding layer 40, and the vacant portion 43 corresponds to the partial lines 15 . Therefore, each article A single-sided shielding area 151 having only one shielding layer 40 on one side is formed at a specific position of the dividing line 15. As shown in the third figure, the cross-sectional view of the AA line segment of the first figure has only the lower shielding layer 42 in the range of the single-sided shielding area 151 of the dividing line 15, and the other side corresponds to the vacancy of the upper shielding layer 41. Part 43. Therefore, the thin portion has a thinner thickness in the range of the single-sided shielding region 151 than the other portions of the branching line 15, and thus has better flexibility.

Next, referring to the fourth figure, after the plurality of branch lines 15 of the flexible flexible cable 10 are stacked and folded, the original plurality of partial lines 15 are stacked on each other to form a small-width assembly portion 17, and the assembly portion 17 further includes a bend region 171 that is used in a narrow space through the electronic product, particularly where repeated switching or rotation is required, such as the pivot portion of a notebook computer. In the preferred embodiment, the bending region 171 corresponds to the single-sided shielding region 151 of each of the aforementioned partial lines 15, and therefore, has the best flexibility on the bending region 171 of the collecting portion 17, At the same time, it can maintain certain high frequency electrical characteristics.

In the preferred embodiment, all of the partial lines 15 corresponding to the bending regions 171 are formed as a single-sided shielding area 151, but in other embodiments, only the partial dividing lines 15 may be formed on the partial dividing lines 15 as well. The effect of increasing the flexibility of the bending region 171 is achieved, and the flexibility of the bending property and the adjustment of the shielding effect can be changed by the user according to actual environmental parameters.

The vacant portion 43 is not limited to being formed on the upper shielding layer 41, and may be formed on the lower shielding layer 42. Furthermore, the number of the vacant portions 43 may be plural, and is formed on the upper shielding layer 41 and the lower shielding layer 42, for example, in the upper shielding layer 41. The lower shielding layer 42 forms a vacant portion 43 each of which forms a range of single-sided shielding regions 151.

As shown in the fifth figure, after the folding is completed, the outer portion of the assembly portion 17 is further wrapped with a conductive cloth 50, and the conductive cloth 50 is electrically connected to the shielding layer 40. The assembly portion 17 and the front connector terminal 20 are arranged perpendicular to each other. The metal housing 60 can be attached to the front connector terminal 20 to form a complete connector connector. The metal housing 60 can be formed with the shielding layer 40. Electrically conductive. The collecting portion 17 is also formed to be vertically aligned with the non-separating portion 16. Generally, the length of the bending region 171 is between 1/3 and 1/2 of the collecting portion 17, and the position is formed on the side closer to the non-separating portion 16, but the designer can follow the actual institutional environment. The length and position of the bending region 171 are changed.

The present invention forms a single-sided shielding area 151 by retaining only one side of the shielding layer 40 at a specific position of each of the partial lines 15, and the partial lines 15 are arranged to form the collecting portion 17 to make the single sides The shielding area 151 corresponds to the bending area 171, so that the bending area 171 has better flexibility than other positions, and can maintain a certain high-frequency electrical characteristic.

The above detailed description is intended to illustrate a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and other equivalents and modifications may be made without departing from the spirit of the invention. Changes are to be included in the scope of patents covered by this creation.

10‧‧‧Soft cable

11‧‧‧Metal wire

12‧‧‧Insulation

13‧‧‧ upper surface

14‧‧‧ Lower surface

15‧‧‧Separation line

151‧‧‧Single-sided shaded area

16‧‧‧non-line area

17‧‧‧ Collection Department

171‧‧‧Bending area

20‧‧‧ front plug

30‧‧‧ rear plug

40‧‧‧Shielding layer

41‧‧‧Upper cover

42‧‧‧Under the cover layer

43‧‧‧ Vacancy

50‧‧‧ conductive cloth

60‧‧‧Metal housing

The first picture is a three-dimensional diagram of the line structure of the creation after the line.

The second picture is the three-dimensional exploded view of the line structure of the creation after the line.

The third figure is a cross-sectional view of the line A-A of the first figure.

The fourth picture is the schematic diagram of the arrangement of the line of the creation, after the folding of each line is assembled.

The fifth picture is a schematic diagram of the arrangement of the lines of the creation, after the collection of the respective lines is folded.

12‧‧‧Insulation

15‧‧‧Separation line

151‧‧‧Single-sided shaded area

16‧‧‧non-line area

20‧‧‧ front plug

30‧‧‧ rear plug

40‧‧‧Shielding layer

41‧‧‧Upper cover

43‧‧‧ Vacancy

Claims (10)

A cable structure comprising: a flexible cable, the flexible cable is composed of a plurality of metal wires and an insulating layer covering the metal wires up and down, and has a pair of front plug ends and a rear plug end a shielding layer covering the flexible cable, the shielding layer having a vacant portion; wherein a plurality of dividing lines are formed between the front plug end and the rear plug end, the vacant portion corresponding to At least one of the dividing lines to form a single-sided shielding area on at least one of the dividing lines. The cable structure of claim 1, wherein the shielding layer comprises an upper shielding layer attached to the upper surface of the flexible cable and a lower shielding layer attached to the lower surface of the flexible cable, the front plugging The end and the rear plug end are exposed outside the shielding layer. The cable structure according to claim 2, wherein the vacant portion is formed only on the upper shielding layer or the lower shielding layer. The cable structure according to claim 2, wherein the vacant portion is plural and is formed simultaneously on the upper shielding layer and the lower shielding layer. The cable structure according to any one of the preceding claims, wherein the plurality of the plurality of lines are overlapped with each other to form a collection portion, the assembly portion further comprising a bending region, wherein the bending region corresponds to The one-sided shielding area of at least one of the partial lines, so that the bending area has better flexibility. The cable structure of claim 5, further comprising a conductive cloth wrapped around the assembly and electrically connected to the shielding layer. The cable structure according to claim 5, wherein the assembly portion and the front connector end are arranged perpendicular to each other. The cable structure of claim 5, further comprising a non-separating portion, the non-separating portion being located between the collecting portion and the front plug end, and the non-separating portion and the collecting portion are arranged perpendicular to each other . The cable structure according to claim 8, wherein the bending region is located on a side of the assembly portion closer to the non-separating portion. The cable structure of claim 8, further comprising a metal housing mounted on the front plug end and electrically connected to the shielding layer.