CN218998350U

CN218998350U - Flexible circuit board with sampling terminal

Info

Publication number: CN218998350U
Application number: CN202122947613.4U
Authority: CN
Inventors: 林卓奇; 林卓群
Original assignee: Huizhou Dingfengtai Technology Co ltd
Current assignee: Huizhou Dingfengtai Technology Co ltd
Priority date: 2021-11-29
Filing date: 2021-11-29
Publication date: 2023-05-09
Anticipated expiration: 2031-11-29

Abstract

The utility model discloses a flexible circuit board with a sampling terminal, which comprises: a plurality of sampling terminals, a plurality of conductive lines and an insulating film. Wherein, a plurality of sampling terminals are connected with a plurality of conductive lines electricity respectively, and a plurality of conductive lines all set up between two insulating films, and the one end centre gripping of a plurality of sampling terminals is between two insulating films. The flexible circuit board with the sampling terminal provided by the utility model eliminates the welding point between the sampling terminal and the conductive circuit, and forms an integrated connection structure of the sampling terminal and the corresponding conductive circuit in an integrated forming manner, so that the manufacturing efficiency of the flexible circuit board is effectively improved, the reject ratio of the flexible circuit board caused by a welding procedure is reduced, and the production cost of enterprises is effectively reduced.

Description

Flexible circuit board with sampling terminal

Technical Field

The present utility model relates to the field of flexible circuit boards, and more particularly, to a flexible circuit board with a sampling terminal.

Background

The flexible circuit board, also called flexible circuit board (FPC), is a circuit board mainly composed of CU (Copper foil) (E.D. or R.A. copper foil), A (Adhesive) (acrylic and epoxy thermosetting Adhesive) and PI (Polyimide film), and has the advantages of saving space, reducing weight, having high flexibility and the like, and has very wide application in production and life, and market expansion. When the flexible circuit board is used for collecting the voltage of the battery pole, the conductive circuit of the flexible circuit board and the battery pole are generally connected through the wiring terminal.

However, referring to fig. 1 of the present disclosure, in the conventional flexible circuit board with a sampling terminal, like the portion L in fig. 1, a welding manner is generally adopted to weld the nickel plate terminal L1 in the flexible circuit board, so that the nickel plate terminal L1 is conducted with the conductive circuit L3 in the flexible circuit board through the welding point L2, and the other end of the nickel plate terminal L1 is connected with the battery post, so as to collect the voltage of the battery post. The welding type nickel sheet terminal L1 not only causes low manufacturing efficiency of the flexible circuit board, but also easily generates defective products in the welding process of the nickel sheet terminal L1, thereby improving the production cost of enterprises.

Disclosure of Invention

Therefore, it is necessary to provide a flexible circuit board with a sampling terminal aiming at the technical problems of low production efficiency and high cost of the flexible circuit board caused by welding of nickel sheet terminals in the conventional flexible circuit board.

A flexible circuit board with sampling terminals comprises a plurality of sampling terminals, a plurality of conductive circuits and an insulating film. Wherein, a plurality of sampling terminals are connected with a plurality of conductive lines electricity respectively, and a plurality of conductive lines all set up between two insulating films, and the one end centre gripping of a plurality of sampling terminals is between two insulating films.

In one embodiment, each of the sampling terminals includes a conductive substrate, a first composite layer, and a second composite layer. The conductive substrate is electrically connected with the corresponding conductive circuit, the first composite layer is arranged on one side surface of the conductive substrate, and the second composite layer is arranged on the other side surface of the conductive substrate.

In one embodiment, the conductive substrate is made of one of copper, aluminum, copper alloy, stainless steel, conductive graphite, and conductive graphite fiber.

In one embodiment, the material of the first composite layer is one of nickel, gold and copper.

In one embodiment, the material of the second composite layer is one of nickel, gold and copper.

In summary, the flexible circuit board with the sampling terminal disclosed by the utility model eliminates the welding point between the sampling terminal and the conductive circuit in the prior art, and forms an integral connection structure of the sampling terminal and the corresponding conductive circuit in an integral molding manner, so that the manufacturing efficiency of the flexible circuit board is effectively improved, the reject ratio of the flexible circuit board caused by the welding procedure is reduced, and the production cost of enterprises is effectively reduced.

Drawings

FIG. 1 is a schematic diagram of a flexible printed circuit in the prior art;

FIG. 2 is a schematic diagram of a flexible printed circuit with sampling terminals according to an embodiment;

FIG. 3 is a schematic diagram of a flexible printed circuit with sampling terminals according to an embodiment;

fig. 4 is an enlarged schematic view of a portion M of the flexible circuit board with the sampling terminals shown in fig. 3.

Detailed Description

In order that the above objects, features and advantages of the utility model will be readily understood, a more particular description of the utility model will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model. The present utility model may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the utility model, whereby the utility model is not limited to the specific embodiments disclosed below.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

It will be understood that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.

Referring to fig. 2, the utility model discloses a flexible circuit board with sampling terminals, which comprises a plurality of sampling terminals 1, a plurality of conductive circuits 2 and an insulating film 3. Wherein, a plurality of sampling terminals 1 are connected with a plurality of conductive lines 2 electricity respectively, and a plurality of conductive lines 2 all set up between two insulating films 3, and the one end centre gripping of a plurality of sampling terminals 1 is between two insulating films 3. Compared with the existing flexible circuit board, the flexible circuit board in the utility model eliminates the welding point between the existing sampling terminal 1 and the conductive circuit 2, adopts an integrated forming mode, and forms the sampling terminal 1 by die cutting and etching the tail end of the conductive circuit 2, thereby obtaining an integrated structure of the conductive circuit 2 and the sampling terminal 1, reducing the welding procedure of the flexible circuit board, improving the manufacturing efficiency of the flexible circuit board, avoiding the situation that the sampling terminal 1 is easy to produce defective products in the welding process, and effectively reducing the production cost of enterprises.

Further, each sampling terminal 1 includes a conductive substrate 11, a first composite layer 12, and a second composite layer 13. The conductive substrate 11 is electrically connected to the corresponding conductive circuit 2, the first composite layer 12 is disposed on one surface of the conductive substrate 11, and the second composite layer 13 is disposed on the other surface of the conductive substrate 11. Compared with the existing sampling terminal 1, the sampling terminal provided by the utility model has the advantages that the first composite layer 12 and the second composite layer 13 are additionally arranged on the surfaces of the two sides of the conductive base material 11, so that a multi-layer composite structure is formed, and the conductive base material 11 is used as a forming base of the sampling terminal 1, so that the conductivity and the structural strength of the sampling terminal 1 can be ensured; the first composite layer 12 and the second composite layer 13 can isolate the conductive substrate 11 from the external environment, so that the conductive substrate 11 is prevented from contacting with corrosive substances in the air to a certain extent, the service life of the sampling terminal 1 is effectively prolonged, and meanwhile, the connection stability between the sampling terminal 1 and the battery pole is ensured.

Further, the conductive substrate 11 is made of one of copper, aluminum, copper alloy, stainless steel, conductive graphite, and conductive graphite fiber. In this embodiment, the conductive substrate 11 is made of a copper zinc alloy. In practical application, the conductive base material 11 supported by the copper-zinc alloy has the characteristics of good conductivity, good ductility, high plasticity and the like, so that the conductivity and the connection stability of the sampling terminal 1 when being connected with a battery pole can be ensured.

Further, the materials of the first composite layer 12 and the second composite layer 13 are respectively one of nickel, gold and copper. In this embodiment, the first composite layer 12 and the second composite layer 13 are made of nickel. In practical application, the first composite layer 12 and the second composite layer 13 are attached to the two side surfaces of the conductive substrate 11 by electroplating to form a nickel coating. The nickel coating has high stability in air and strong passivation capability, and when the sampling terminal 1 is in air, the outer surfaces of the first composite layer 12 and the second composite layer 13 can quickly generate an extremely thin passivation film, so that corrosion of alkaline matters and acidic matters in the atmosphere is avoided. In addition, the electroplated nickel has fine crystal and good polishing performance, and the hardness is higher, so that the electroplated nickel has good wear resistance, and further the sampling terminal 1 has higher corrosion resistance and wear resistance while ensuring the smooth surface. When the sampling terminal 1 is connected with the battery post, it can form a more stable connection structure.

The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The above examples illustrate only a few embodiments of the utility model, which are described in detail and are not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.

Claims

1. A flexible circuit board with sampling terminals, comprising: the sampling device comprises a plurality of sampling terminals, a plurality of conductive lines and insulating films, wherein the sampling terminals are respectively and electrically connected with the conductive lines, the conductive lines are arranged between the insulating films, and one ends of the sampling terminals are clamped between the insulating films.

2. The flexible circuit board with sampling terminals according to claim 1, wherein each sampling terminal comprises a conductive substrate, a first composite layer and a second composite layer, the conductive substrate is electrically connected with the corresponding conductive circuit, the first composite layer is arranged on one side surface of the conductive substrate, and the second composite layer is arranged on the other side surface of the conductive substrate.

3. The flexible printed circuit board with the sampling terminal according to claim 2, wherein the conductive substrate is made of one of copper, aluminum, copper alloy, stainless steel, conductive graphite and conductive graphite fiber.

4. The flexible printed circuit board with the sampling terminal according to claim 2, wherein the first composite layer is made of one of nickel, gold and copper.

5. The flexible printed circuit board with the sampling terminal according to claim 2, wherein the second composite layer is made of one of nickel, gold and copper.