CN216562514U - FFC (flexible flat cable) connected in any order - Google Patents

Abstract

The utility model belongs to the technical field of flexible cables, and particularly relates to an FFC (flexible flat cable) connected in any order, which comprises a conductor layer and insulating layers arranged on two surfaces of the conductor layer, wherein the conductor layer consists of m conductors, and the connecting ends of all the conductors are flush to form a total connecting end of the conductor layer; at least two conductors are present, namely an nth conductor and an n +1 th conductor from any side of the conductor layer, wherein the length of the nth conductor is greater than that of the n +1 th conductor; each conductor is provided with a bending section; the distance between the folding position of the bending section of the nth conductor relative to the conductor and the connecting end of the conductor is L1, the distance between the folding position of the bending section of the (n + 1) th conductor relative to the conductor and the connecting end of the conductor is L2, and L2 is less than L1; m and n are positive integers, m is greater than n, and n is greater than or equal to 1. Compared with the prior art, the FFC has wide application range and convenient use.

Description

FFC (flexible flat cable) connected in any order

Technical Field

The utility model relates to the technical field of flexible cables, in particular to an FFC (flexible flat cable) with a connection PIN of a conductor thereon capable of being connected with connection positions at different positions.

Background

The FFC is a short for Flexible Flat Cable, means a Flexible Flat Cable, is widely used for various electronic products, generally comprises a plurality of conductors, and one end of each conductor is flush and level and serves as a general connecting end. The vehicle-mounted electronic product also needs to use a cable, which comprises an FFC (flexible flat cable), according to the connection requirements of vehicle electric and circuits, a plurality of PINs are arranged at one end of the cable, and a plurality of branch connection PINs corresponding to the PINs are arranged at the other end of the cable; in order to solve the problem, a new FFC is adopted, as shown in fig. 1, one end of a conductor layer on the FFC is a total connection end exposed outside an insulating layer, a bending section is arranged on each conductor, a free end of the bending section is a connection PIN, the connection PINs all extend out of one side of the FFC, a plurality of connection points are respectively arranged outside the side of the FFC, the connection points are respectively connection points 1, 2, 3, 4 and 5 …, the conductor layer of the FFC comprises 1 st, 2 nd, 3 rd, 4 th and 5 rd 5 … conductors counted from the side of the FFC, when in connection, the connection is sequentially connected, namely the connection PIN of a first conductor is connected with the connection point 1, the connection PIN of a second conductor is connected with the connection point 2, namely, the conductors arranged in sequence are connected with the connection points from near to far, and arbitrary connection cannot be realized, for example, the connection PIN on the second conductor is connected with the first connection point, so that some application scenes are difficult to adapt, the application range is small.

SUMMERY OF THE UTILITY MODEL

To overcome the disadvantages of the prior art, the present invention aims to provide an FFC which is connected in any order.

In order to achieve the purpose, the utility model adopts the technical scheme that: the FFC comprises a conductor layer and insulating layers arranged on two surfaces of the conductor layer, wherein the conductor layer consists of m conductors, and the connecting ends of all the conductors are flush to form a total connecting end of the conductor layer; at least two conductors are present, namely an nth conductor and an n +1 th conductor from any side of the conductor layer, wherein the length of the nth conductor is greater than that of the n +1 th conductor; each conductor is provided with a bending section; the distance between the folding position of the bending section of the nth conductor relative to the conductor and the connecting end of the conductor is L1, the distance between the folding position of the bending section of the (n + 1) th conductor relative to the conductor and the connecting end of the conductor is L2, and L2 is less than L1; m and n are positive integers, m is greater than n, and n is greater than or equal to 1.

Furthermore, the free end of the bending section is provided with a connection PIN.

The beneficial technical effects are as follows: by adopting the FFC, a plurality of conductors of the conductor layer of the FFC are formed, each conductor is provided with a bending section, the free end of the bending section is provided with a connection PIN, and the connection PIN is the section of the free end of the bending section exposed out of the insulating layer; if counting is started from any one of two side edges of the FFC, at least two conductors are present, namely an nth conductor and an n +1 th conductor, and the length of the nth conductor is greater than that of the n +1 th conductor; in particular, L2< L1; with this structure, the connection of the conductors to the connection points does not require the FFC of the prior art, i.e., the conductors constituting the conductor layer are sequentially connected to the connection points, i.e., the first conductor is connected to the first connection point, and the second conductor is connected to the second connection point; according to the FFC, the n-th conductor can be connected with the (n + 1) -th connecting point, and the (n + 1) -th conductor is connected with the n-th connecting point, so that the wider connecting requirement can be met; compared with the prior art, the FFC has wide application range and convenient use.

Drawings

FIG. 1 is a schematic structural view of a prior art FFC;

FIG. 2 is a schematic structural diagram of an FFC according to an embodiment of the present invention;

FIG. 2a is an enlarged view of a portion of FIG. 2;

FIG. 3 is a schematic structural diagram of a first step of fabricating an FFC according to an embodiment of the present invention;

FIG. 4 is a schematic structural diagram of a second step of fabricating an FFC in accordance with an embodiment of the present invention;

fig. 5 is a schematic structural diagram of a second step of manufacturing the FFC according to the embodiment of the present invention.

Detailed Description

In order that those skilled in the art will better understand the technical solution of the present invention, the following detailed description of the present invention is provided in conjunction with the accompanying drawings and embodiments.

As shown in fig. 2, an embodiment of the present invention provides an FFC connected in any order, which includes a conductor layer and insulating layers 1 disposed on two surfaces of the conductor layer, wherein the conductor layer is composed of m conductors 2, and connection ends of all the conductors are flush with each other to form a total connection end 3 of the conductor layer; the value of m is not particularly limited, and is determined according to the specification of the FFC, and for example, if ten conductors are used for the FFC of the present embodiment, m is 10.

Among the m conductors 2, there are at least two conductors, which are respectively the n-th conductor and the n + 1-th conductor from any side of the conductor layer, namely, counted from any side of the conductor layer, and the length of the n-th conductor is greater than that of the n + 1-th conductor; as shown in fig. 5, if counting from the upper side of the FFC, the length of the second conductor is less than the length of the first conductor, and the length of the fourth conductor is less than the length of the third conductor; the length of the conductor is determined in such a way that the length of the first conductor is the length between line segments AB, the length of the second conductor is the length between line segments CD, and the length of the line segments CD is smaller than that of the line segments AB; n is a positive integer and n is greater than or equal to 1.

Meanwhile, each conductor 2 is provided with a bending section 201, the bending section 201 is actually integrated with the conductor 2, and the bending section 201 is formed by bending at a certain position of the conductor 2; the distance between the folded position of the bent segment 201 of the nth conductor 2 relative to the conductor (namely the nth conductor) and the connection end of the conductor (the nth conductor) is L1, the distance between the folded position of the bent segment of the (n + 1) th conductor relative to the conductor (the (n + 1) th conductor) and the connection end of the conductor is L2, and L2 is less than L1; for example, as shown in fig. 2 and fig. 2a, if counted from the upper side of the FFC, the distance from the position where the bent segment 201 of the first conductor 2 is folded with respect to the conductor (i.e. the first conductor) to the connection end of the conductor (i.e. the first conductor) is L1, that is, the length between AB 'is L1, and B' is the folding position on the first conductor; the distance from the folded position of the bent section 201 of the second conductor 2 to the connection end of the conductor (second conductor) is L2, that is, the length between CD 'is L2, D' is the folded position on the second conductor, and L2 is less than L1; in this embodiment, only the first conductor and the second conductor are specifically described, but in practical application, the second conductor may be longer than the third conductor according to requirements, and the folding positions of the bending sections on the second conductor and the third conductor may also be located in front of the folding position of the second conductor.

The significance of adopting this structure lies in, with the FFC mode of putting shown in figure 2, supposing that be equipped with a plurality of connection point location outside the FFC and need adopt this FFC and external connection, be connection point location one, two, three, four, five … respectively, then can be connected the section of bending on the first conductor with the second connection point location, be connected the section of bending on the second conductor with first connection point location, so on, as required, realize that the section of bending on arbitrary conductor is connected with arbitrary connection point location.

The free end of the bending section 201 is provided with a connection PIN, and the connection PIN is a section of the free end of the bending section exposed outside the insulating layer 1 and is used for connecting a conductor with the outside.

The FFC of the utility model can be processed by the following steps:

step 1, selecting an insulating layer and a conductor layer to carry out line-combining processing, punching one end of the insulating layer to expose the conductor when the line is combined to form a total connecting end, and punching other positions of the insulating layer as required to expose a connecting PIN on each conductor; obtaining a joint line FFC; as shown in fig. 3;

step 2, carrying out striping treatment on the combined line FFC, namely cutting two adjacent conductors of the combined line FFC by using a cutter as shown in fig. 4, and then punching off the parts except the free ends of the connecting PIN on the conductors as shown in fig. 5;

and 3, after each conductor is subjected to slitting processing, folding each conductor to obtain a finished product FFC, as shown in fig. 2.

In the above description, it should be noted that the terms "mounted," "connected," and the like are used in a broad sense, and for example, they may be fixedly connected, detachably connected, or integrally connected; the connection may be direct or indirect via an intermediate medium, and the connection may be internal to the two components.

It is to be understood that the above-described embodiments are merely illustrative of some, but not restrictive, of the broad invention, and that the appended drawings illustrate preferred embodiments of the utility model without limiting its scope. This invention may be embodied in many different forms and, on the contrary, these embodiments are provided so that this disclosure will be thorough and complete. All equivalent structures made by using the contents of the specification and the attached drawings of the utility model can be directly or indirectly applied to other related technical fields, and are also within the protection scope of the patent of the utility model.

Claims (2)

1. The FFC comprises a conductor layer and insulating layers arranged on two surfaces of the conductor layer, wherein the conductor layer consists of m conductors, and the connecting ends of all the conductors are flush to form a total connecting end of the conductor layer; the method is characterized in that at least two conductors are present, namely an nth conductor and an n +1 th conductor from any side of the conductor layer, and the length of the nth conductor is greater than that of the n +1 th conductor; each conductor is provided with a bending section; the distance between the folded position of the bent section of the nth conductor relative to the conductor and the connecting end of the conductor is L1, the distance between the folded position of the bent section of the (n + 1) th conductor relative to the conductor and the connecting end of the conductor is L2, and L2 is less than L1; m and n are positive integers, m is greater than n, and n is greater than or equal to 1.

2. The FFC in any order of connection of claim 1, wherein the free end of the bending section is provided with a connection PIN.

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