TWM486160U - Flexible flat cable capable of preventing conductive member from end deformation - Google Patents

Description

Flexible flat cable to prevent deformation of the end of the conductive member

The present invention relates to a flexible flat cable, and more particularly to a flexible flat cable that prevents deformation of the ends of the conductor.

Flexible flat cable (FFC) is used in electronic products to provide signal transmission, and the flexible flat cable is light and thin. Therefore, it is more widely used in electronic products that are light and thin. .

Referring to FIGS. 8 and 9, the prior art flexible flat cable includes a plurality of conductive members 70 arranged in parallel and spaced apart from each other, and an insulating member 80 having a first insulating layer 81 and a a second insulating layer 82, the conductive member 70 is wrapped between the first insulating layer 81 and the second insulating layer 82. The long axial length of the first insulating layer 81 is smaller than the extending length of the conductive member 70. Both ends of the conductive member 70 are exposed on the outer sides of the first insulating layer 81. The long axial length of the second insulating layer 82 is equal to the extended length of the conductive member 70, and both ends of the conductive member 70 and the second insulating layer 82 The ends are aligned.

Referring to FIG. 10, the prior art flexible flat cable is plugged into the connector 90 during use, so that the exposed ends of the conductive member 70 are electrically connected to the terminals 91 of the connector 90 for signal transmission. Use.

However, referring to FIG. 11, in the prior art, the flexible flat cable often has an external force that touches both ends of the conductive member 70 during the production process, causing deformation of both ends of the conductive member 70, such as lifting or curling. The situation occurs; please refer to Figure 10 as shown in Figure 10, when the prior art flexible flat cable is plugged in When the connector 90 is used, the end surface of the conductive member 70 directly touches the terminal 91 of the connector 90, which easily causes the conductive member 70 to be deformed by the pushing of the terminal 91, and the conductive member 70 loses its ability to transmit signals after being deformed. As a result, the flexible flat cable with the deformed conductive member 70 can only be scrapped. Therefore, the prior art flexible flat cable has the disadvantages of low production efficiency and short service life.

In view of the above-mentioned shortcomings of the prior art, the purpose of the present invention is to provide a flexible flat cable which prevents deformation of the end portion of the conductive member, and has the advantages of high production efficiency and long service life.

In order to achieve the foregoing creation, the technical means adopted by the present invention is a flexible flat cable for preventing deformation of the end of the conductive member, comprising: an insulating member having a first insulating layer and a first insulating layer a second insulating layer, wherein the first insulating layer has a long axial length smaller than a long axial length of the second insulating layer; a conductive component covering the first insulating layer and the second insulating layer And including a plurality of conductive members, the conductive members are spaced apart from each other, each of the conductive members has a first side, a second side opposite the first side, and a first guiding surface, each of the conductive members The first side is in contact with the first insulating layer, the second side of each of the conductive members is in contact with one side of the second insulating layer, and one end of the first side of each of the conductive members is exposed to the first insulating layer The first guiding end of the second side surface of each of the conductive members is respectively connected to the opposite end sides of the corresponding side surface of the second insulating layer, and the first guiding surface of each of the conductive members is inclined, and the first guiding The inner edge of the lead surface is connected to the exposed end of the first side Contact with the outer edge of the second side.

The present invention achieves the following advantages by providing the inclined first guiding surface at one end of each of the conductive members:

1. In the production process, if foreign matter touches the exposed end of each conductive member, the first guiding surface and the second guiding surface which are inclined downward are slid open without forming a concentrated force, thereby avoiding each The exposed end of the conductive member will be deformed such as lifting or curling, which can improve the product yield and reduce the production cost.

2. When the flexible flat cable of the preferred embodiment is inserted into the connector, the first guiding surface touches the terminal of the connector, so that the strength of each conducting member directly pushed by the terminal can be greatly reduced. Therefore, each of the conductive members is not damaged by the force deformation and smoothly joined to the connector, thereby having durability and assembly convenience.

Preferably, the second insulating layer is fixed to a side of one side of the conductive component to fix a reinforcing member, and the reinforcing member is located at an end corresponding to the exposed end of each of the conductive members. In addition, the hardness of both ends of the flexible flat cable can be increased, and the connector can be inserted or pulled out from the connector, and the contact reliability between the conductive members and the terminals of the connector can be improved, thereby providing a stable signal transmission effect.

10‧‧‧Insulation

11‧‧‧First insulation

12, 12A, 12B, 12C‧‧‧ second insulation layer

121A, 121B‧‧‧ end face

20, 20A‧‧‧Transmission parts

21‧‧‧ first side

22‧‧‧ second side

23, 23A, 23B, 23C‧‧‧ first guiding surface

24‧‧‧Second guiding surface

30, 30B, 30C‧‧‧ reinforcements

31B, 31C‧‧‧ Bevel

40‧‧‧Connector

41‧‧‧terminal

70‧‧‧Transmission parts

80‧‧‧Insulation

81‧‧‧First insulation

82‧‧‧Second insulation

90‧‧‧Connector

91‧‧‧terminal

1 is a top plan view of a first preferred embodiment of the present invention.

2 is a partial perspective view of the first preferred embodiment of the present invention.

3 is a schematic diagram of the first action of using the first preferred embodiment of the present invention.

4 is a schematic diagram of the second action of the first preferred embodiment of the present invention.

Figure 5 is a partial side elevational cross-sectional view of a second preferred embodiment of the present invention.

Figure 6 is a partial side elevational cross-sectional view of a third preferred embodiment of the present invention.

Figure 7 is a partial side elevational cross-sectional view of a fourth preferred embodiment of the present invention.

Figure 8 is a top plan view of the prior art.

FIG. 9 is a partial perspective view of the prior art.

Figure 10 is a schematic view of the first use of the prior art.

Figure 11 is a schematic view of the second use of the prior art.

The technical means adopted by the present invention for the purpose of predetermined creation are further explained below in conjunction with the drawings and the preferred embodiment of the present invention.

First preferred embodiment

Referring to FIGS. 1 and 2, the flexible flat cable for preventing deformation of the end of the conductive member of the preferred embodiment comprises an insulating member 10, a conductive member and two reinforcing members 30. The conductive assembly includes a plurality of conductive members 20.

Referring to FIGS. 1 to 3, the foregoing insulating member 10 has a first insulating layer 11 and a second insulating layer 12 overlapping the first insulating layer 11, the long axial length of the first insulating layer 11. Less than the long axial length of the second insulating layer 12.

Referring to FIGS. 1 to 3, the conductive component is coated between the first insulating layer 11 and the second insulating layer 12. The conductive members 20 are spaced apart from each other, and each of the conductive members 20 has a first side 21 a first side surface 22 opposite to the first side surface 21, a first guiding surface 23 and a second guiding surface 24, and the first side surface 21 of each of the conductive members 20 is connected to the first insulating layer 11. The second side 22 of each of the conductive members 20 is in contact with one side of the second insulating layer 12, and both ends of the first side 21 of each of the conductive members 20 are exposed outside the two ends of the first insulating layer 11 respectively. The two ends of the second side 22 of each of the conductive members 20 are respectively connected to the opposite ends of the corresponding side faces of the second insulating layer 12, and the two ends of the first guiding faces 23 of the respective conductive members 20 are respectively The first side surface 21 and the second side surface 22 are in contact with each other, the first guiding surface 23 is inclined, and the inner edge of the first guiding surface 23 is in contact with the first side surface 21 and the outer edge is in contact with the second side surface 22; The two ends of the second guiding surface 24 of each of the conductive members 20 are respectively connected to the first side surface 21 and the second side surface 22, and the second guiding surface 24 is inclined, and the inner edge of the second guiding surface 24 is The first side surface 21 and an outer edge in contact with the second side surface 22 in contact.

As shown in FIG. 2 and FIG. 3, the two reinforcing members 30 are respectively fixed on one side of the second insulating layer 12 away from the conductive component, and the positions of the two reinforcing members 30 respectively correspond to the exposed portions of the conductive members 20. Both ends.

Referring to FIGS. 1 to 3, in the preferred embodiment, the inclined first guiding surface 23 and second guiding surface 24 are disposed at both ends of each of the conductive members 20, according to which, in the production process In the case where any foreign matter touches the both end portions of the respective conductive members 20, the first guiding surface 23 and the second guiding surface 24 which are inclined downward are slid open without forming a concentrated force, thereby avoiding the respective conductive members 20 The deformation of the two ends occurs, such as lifting or curling, to improve the product yield and reduce the production cost; please further refer to FIG. 4, when the flexible flat cable of the preferred embodiment is plugged into the connector At 40 o'clock, each of the conductive members 20 is in contact with the terminal 41 of the connector 40 by the first guiding surface 23 and the second guiding surface 24, and by the action of the first guiding surface 23 and the second guiding surface 24, The force of each of the conductive members 20 directly pushed by the terminal 41 can be greatly reduced, and the conductive members 20 are not damaged by the force deformation, and the flexible flat cable can be smoothly inserted into the connector 40, so that the durability is durable. And assembly convenience.

In addition, by the arrangement of the two reinforcing members 30, the hardness of both ends of the flexible flat cable of the preferred embodiment can be increased, and the flexible flat cable can be easily operated to insert or pull out the connector 40, and the conductive members 20 are improved. The contact reliability of the terminal 41 of the connector 40 provides a stable signal transmission effect.

Second preferred embodiment

Referring to FIG. 5, the flexible flat cable for preventing deformation of the end portion of the conductive member of the preferred embodiment is different from the first preferred embodiment in that both end faces of the second insulating layer 12A are inclined, respectively. The inner edges of the both end faces of the second insulating layer 12A are respectively in contact with the first guiding faces 23A and the second guiding faces of the respective conductive members 20A.

Third preferred embodiment

Referring to FIG. 6, the flexible flat cable for preventing deformation of the end portion of the conductive member of the preferred embodiment is different from the second preferred embodiment in that a bevel surface 31B is formed on the outer end surface of each reinforcing member 30B. The inclined surface 31B is in contact with the end of one end surface 121B of the second insulating layer 12B. The inclined surface 31B is inclined in the same direction as the corresponding end surface 121B of the second insulating layer 12B, and the inclined surface 31B of each reinforcing member 30B extends to the outer end surface. Middle section.

Fourth preferred embodiment

Referring to FIG. 7, the flexible flat cable for preventing deformation of the end portion of the conductive member of the preferred embodiment is different from the third preferred embodiment in that the inclined surface 31C of each reinforcing member 30C extends to the outer end surface away from the second portion. The end edge of the insulating layer 12C.

In summary, the present invention avoids the occurrence of the warping of the ends of the conductive members 20 during the production process by the inclined first guiding surface 23 and the second guiding surface 24 disposed at the two ends of the conductive members 20. Deformation such as lifting or curling, and ensuring that each of the conductive members 20 is not deformed and damaged by the force directly pushed by the terminal 61 of the connector 60, and can smoothly engage with the connector 60, thereby improving product yield and reducing Production cost, durability and easy assembly.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way. Although the present invention has been disclosed above in the preferred embodiment, it is not intended to limit the present invention, and any technique familiar to the art. A person skilled in the art can make some modifications or modifications to equivalent embodiments by using the technical content disclosed above, but the content of the present invention is not deviated from the present invention. Technical simplifications Any simple modifications, equivalent changes and modifications made to the above embodiments are still within the scope of the present technical solution.

10‧‧‧Insulation

11‧‧‧First insulation

12‧‧‧Second insulation

20‧‧‧Transmission parts

23‧‧‧First guiding surface

24‧‧‧Second guiding surface

Claims (10)

A flexible flat cable for preventing deformation of an end portion of a conductive member, comprising: an insulating member having a first insulating layer and a second insulating layer overlapping the first insulating layer, the length of the first insulating layer The axial length is smaller than the long axial length of the second insulating layer; a conductive component is wrapped between the first insulating layer and the second insulating layer, and includes a plurality of conductive members, the conductive members are spaced apart from each other Arranging, each of the conductive members has a first side, a second side opposite to the first side, and a first guiding surface, and the first side of each of the conductive members is in contact with the first insulating layer, and each of the conductive members The second side is in contact with one side of the second insulating layer, and one end of the first side of each of the conductive members is exposed outside one end of the first insulating layer, and the two ends of the second side of each of the conductive members are respectively A first guiding surface of each of the conductive members is inclined, and an inner edge of the first guiding surface is connected to an exposed end of the first side surface. The edge is connected to the second side. The flexible flat cable for preventing deformation of the end of the conductive member according to claim 1, wherein one end surface of the second insulating layer is inclined, and the inner edge of the end surface is opposite to the first guiding surface of each of the conductive members. Pick up. The flexible flat cable for preventing deformation of the end of the conductive member according to claim 1 or 2, wherein a reinforcing member is fixed to one end of the second insulating layer away from one side of the conductive member, and the position of the reinforcing member corresponds to each The exposed end of the conductive member. The flexible flat cable for preventing deformation of the end of the conductive member according to claim 3, wherein a bevel is formed on the outer end surface of the reinforcing member, and the inclined surface is in contact with an end edge of the corresponding end surface of the second insulating layer, The inclined surface and the corresponding end surface of the second insulating layer are inclined in the same direction, and the inclined surface of each reinforcing member extends to the middle portion of the outer end surface. The flexible flat cable for preventing deformation of the end of the conductive member according to claim 4, wherein the slope of the reinforcing member extends to the end surface of the outer end surface away from the second insulating layer. The flexible flat cable for preventing deformation of the end of the conductive member according to claim 1, wherein each of the conductive members of the conductive member includes a second guiding surface, and the second guiding surface of each of the conductive members is disposed at an inclination The other end of the conductive member is exposed, and the other end of the first side of each of the conductive members is exposed outside the other end of the first insulating layer, and the inner end of the second guiding surface of each of the conductive members and the first conductive member are The other end of the side exposed is joined and the outer end is connected to the second side. The flexible flat cable for preventing deformation of the end portion of the conductive member according to claim 6, wherein both end faces of the second insulating layer are inclined, and inner edges of both end faces of the second insulating layer are respectively connected to the respective conductive members. The first guiding surface and the second guiding surface are in contact with each other. The flexible flat cable for preventing deformation of the end of the conductive member according to claim 6 or 7, wherein a reinforcing member is respectively fixed at two ends of the second insulating layer away from one side of the conductive member, and the positions of the two reinforcing members are respectively Corresponding to the exposed ends of each of the conductive members. The flexible flat cable for preventing deformation of the end of the conductive member according to claim 8, wherein a bevel is formed on the outer end surface of each reinforcing member, and the inclined surface is in contact with an end edge of one end surface of the second insulating layer, and the inclined surface is The corresponding end faces of the second insulating layer are inclined in the same direction, and the slopes of the reinforcing members extend to the middle of the outer end faces. The flexible flat cable for preventing deformation of the end portion of the conductive member according to claim 9, wherein the slope of each reinforcing member extends to the end surface of the outer end surface away from the second insulating layer.