CN211128415U

CN211128415U - Anti-tear FPC connecting piece

Info

Publication number: CN211128415U
Application number: CN201921692455.9U
Authority: CN
Inventors: 王光红; 杜瑞
Original assignee: Suzhou Hengmei Electron Technology Co ltd
Current assignee: Suzhou Hengmei Electron Technology Co ltd
Priority date: 2019-10-11
Filing date: 2019-10-11
Publication date: 2020-07-28
Anticipated expiration: 2029-10-11

Abstract

The utility model relates to the technical field of electrical connection, and discloses an anti-tearing FPC (flexible printed circuit) connecting piece, which comprises an FPC board body; a plurality of connection terminals and a plurality of connection strips. Wherein, at least one the connecting band include with FPC board body fixed connection's first connecting portion and rather than corresponding connecting terminal fixed connection's second connecting portion. The connecting band is flexible, so that the part of the connecting band except the first connecting part can move relative to the FPC board body along with the corresponding connecting terminal. The utility model relates to a prevent tearing FPC connecting piece can effectively release connecting terminal and stress at X direction, Y direction and the stress that a plurality of directions atress of Z direction produced to guarantee the reliability of product, and the processing cost is lower.

Description

Anti-tear FPC connecting piece

Technical Field

The utility model relates to an electrical connection technical field, specific is an anti-tear FPC connecting piece.

Background

Connecting devices are commonly used in electronic products such as automobiles and household appliances, the connecting devices are simple to assemble and high in flexibility, and the connecting devices are convenient to maintain and upgrade, so that the connecting devices are widely used. When the connecting device is processed, the connection process between the FPC board body and the connecting terminal is an important processing link. The connection terminal is a contact member of the FPC connector, and the connection between the connection terminal and the FPC board body needs to be very firm in order to make the FPC connector have more stable contact performance and usability. The connection terminals are usually soldered to the FPC board body by a soldering process.

A plurality of connection terminals are distributed on the FPC board body. In practical application, the connecting terminal can bear certain stress, and if the stress cannot be well released, the reliability of the FPC connecting piece can be influenced.

The traditional connection processing technology of the connection terminal and the FPC board body mainly has two types. Referring to fig. 1, in the conventional process, after one end of a connection terminal 2 is welded to an FPC board body 1, the other end is welded to a busbar (or other metal member). When the connection terminal 2 is operated, if the temperature of the working environment changes, the busbar may expand or contract along with the temperature change. Because the FPC board body 1 is not designed by adopting any stress releasing design, when the busbar expands or contracts, all the connecting terminals 2 are stressed towards different directions, so that the FPC board body 1 is torn or solder cracks are generated on the connecting terminals 2 and welding spots of the FPC board body 1, and finally, production faults of products are caused, and the performance of the products is influenced.

Referring to fig. 2, in the second conventional process, a bend 3 is added to the FPC board body 1 on the basis of the first conventional process. The design can only release stress in a single direction (X direction), and stress cannot be released when other spaces are stressed, so that the risk of tin cracking caused by tearing the FPC board body 1 or welding spots also exists. Moreover, as the bending 3 process is added at the position of the FPC board body 1, the manufacturing cost of the product is greatly increased, and meanwhile, the risk of circuit damage is difficult to avoid in the processing process of bending 3.

Therefore, it is necessary to develop an FPC connector which is low in cost and can effectively release stresses in different directions.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defect among the prior art, the utility model provides a tear-proof FPC connecting piece, it can effectively release connecting terminal at the stress that X direction, Y direction and a plurality of directions atress of Z direction produced to the processing cost is lower.

The utility model discloses a tear-proof FPC connecting piece, include:

An FPC board body;

A plurality of connection terminals;

The connecting strips comprise a first connecting part fixedly connected with the FPC board body and a second connecting part fixedly connected with the corresponding connecting terminal; the connecting band is flexible, so that the part of the connecting band except the first connecting part can move relative to the FPC board body along with the corresponding connecting terminal.

Preferably, the connection tape is integrally formed with the FPC board body.

Preferably, the second connection portion has a width greater than that of the first connection portion.

Preferably, the second connection portion and the connection terminal are connected by soldering.

Preferably, one side of the FPC board body is provided with a notch which is adaptive to the shape of the connecting belt, so that the connecting belt can be arranged in the notch.

Further preferably, one side of the connecting band, which faces away from the FPC board body, is arranged at the opening of the notch.

Preferably, a gap is arranged between the FPC board body and the connecting band.

The utility model has the advantages as follows: the utility model relates to a tear-proof FPC connecting piece is fixed through the one end that sets up the connecting band with the FPC board body, and the other end is the free end for FPC board body. The connecting band can be for the removal of FPC board body to a plurality of directions to can effectively release connecting terminal in the stress that a plurality of directions atress of X direction, Y direction and Z direction produced, thereby can effectively avoid tearing the hidden danger of FPC board body because connecting terminal is towards the not equidirectional atress. And can not influence the welded connection between connecting terminal and the FPC board body, avoid connecting terminal and FPC board body's solder joint to produce the tin and split the risk, improved the fastness of being connected between FPC board body and the connecting terminal, improve the life of FPC connecting piece, ensure the safe and reliable of product performance. The utility model relates to a tear-proof FPC connecting piece has improved the life of product on the whole. In the embodiment, the connection mode between the connection terminal and the FPC board body does not increase any processing cost, and the effect of effectively releasing the stress in different directions can be achieved, so that the best quality of the product can be achieved while the economic benefit is ensured.

In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic view of a connection structure between a connection terminal and a FPC board body in a first conventional process;

FIG. 2 is a schematic view of a connection structure between a connection terminal and an FPC board body in a second conventional process;

FIG. 3 is a schematic structural view of an anti-tear FPC connector in an embodiment of the present invention;

FIG. 4 is a schematic structural view of a tear resistant FPC connector according to another embodiment of the present invention;

Reference numerals of the above figures: 1-FPC board body; 2-a connection terminal; 3-bending; 4-connecting the belt.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

This embodiment provides a tear resistance FPC connecting piece, includes:

An FPC board body 1;

A plurality of connection terminals 2;

A plurality of connecting strips 4, wherein at least one connecting strip 4 comprises a first connecting part fixedly connected with the FPC board body 1 and a second connecting part fixedly connected with the corresponding connecting terminal 2; the connection tape 4 is flexible so that a portion of the connection tape 4 excluding the first connection portion can move with the corresponding connection terminal 2 relative to the FPC board body 1.

Referring to fig. 3, the present embodiment provides a tear-resistant FPC connector, which is based on improving the connection manner between the FPC board body 1 and the signal collection connection terminals 2, so as to eliminate the risk caused by the stress release of the connection terminals 2. The connection mode of the FPC board body 1 and the connection terminal 2 in this embodiment is suitable for the connection process of the FPC board body 1 and the connection terminal 2 in electronic products such as automobiles and home appliances. The tear-resistant FPC connector in this embodiment includes an FPC board body 1. The FPC board body 1 is provided with a connecting belt 4 used for being connected with the connecting terminal 2, and the connecting belt 4 and the FPC board body 1 are integrally formed, so that the processing technology of the FPC connecting piece is simplified. The FPC board body 1 can be connected with a plurality of connecting terminals 2 according to use requirements, and is correspondingly provided with a plurality of connecting belts 4. The connecting tape 4 is used for connecting with the connecting terminal 2 to realize the electrical conduction between the FPC board body 1 and the connecting terminal 2. One end of the connecting terminal 2 is connected with the connecting belt 4, and the other end of the connecting terminal is welded and fixed with the busbar or (or other metal pieces), so that circuit conduction between the FPC board body 1 and the busbar is realized through the connecting terminal 2, and the connecting terminal 2 can transmit signals between the FPC board body 1 and the busbar.

A plurality of connecting bands 4 on the FPC board body 1 are distributed along the length direction of the FPC board body 1, any one side of each connecting band 4 is connected with the FPC board body 1, and other side edges are not connected with the FPC board body 1. Since the connection tape 4 is flexible, the connection tape 4 can move relative to the FPC board body 1 by the connection terminals 2 connected thereto. The connection terminal 2 is connected to the busbar, and thus the connection terminal 2 is affected by the busbar. Under the condition of large temperature fluctuation, the busbar can generate thermal expansion or contraction with different degrees, so that certain acting force can be generated on the connecting terminal 2.

When the busbar connected with the connection terminal 2 expands or contracts, the connection terminals 2 are stressed in different directions, and the mechanical stress generated by the stress acts on the connection belt 4. Because the one end of connecting band 4 is fixed with FPC board body 1, the other end is the free end for FPC board body 1, consequently connecting band 4 can be for the removal of FPC board body 1 to a plurality of directions, thereby can effectively release connecting terminal 2 in the X direction, the stress that the stress of Y direction and Z direction a plurality of directions produced, thereby can effectively avoid tearing the hidden danger of FPC board body 1 because connecting terminal 2 is towards the not equidirectional atress, and can not influence the welded connection between connecting terminal 2 and the FPC board body 1, the solder joint of having avoided between connecting terminal 2 and the FPC board body 1 produces the tin and splits the risk, the fastness of being connected between FPC board body 1 and connecting terminal 2 has been improved, thereby the life of FPC connecting piece has been improved, can ensure to produce the safe and reliable of performance.

Also, if the stress generated in the connection terminal 2 cannot be released, the fatigue life of the connection terminal 2 will be adversely affected. Therefore, the stress is effectively released, so that the FPC board body 1 can be protected, the connecting terminals 2 can be protected to a certain extent, and the service life of the product is prolonged on the whole. In this embodiment, the connection mode between the connection terminal 2 and the FPC board body 1 does not increase any processing cost, and can achieve the effect of effectively releasing stresses in different directions, thereby achieving the best quality of products while ensuring economic benefits.

The connection band 4 in this embodiment includes a first connection portion and a second connection portion that are connected. The first connecting portion and the second connecting portion are integrally formed. And the connecting band 4 and the FPC board body 1 are also integrally formed, so that the processing steps of the FPC connecting piece are greatly simplified, and the electrical connectivity of the FPC connecting piece is ensured.

In the present embodiment, the first connection portion of the connection tape 4 is used for connection with the FPC board body 1, and the second connection portion is used for connection with one end of the connection terminal 2. Because the second connecting portion need be connected with connecting terminal 2, need have certain area of contact between second connecting portion and connecting terminal 2 and just make the second connecting portion more firm with connecting terminal 2's connection. Further, when the area of the second connection portion is small, it is inconvenient to perform soldering operation with the connection terminal 2, and therefore the width of the second connection portion is large. In this embodiment, the first connecting portion is used for connecting with the FPC board body 1, and the width of the first connecting portion is smaller than that of the second connecting portion. The width of the first connecting part is small, so that the connecting belt 4 can move more flexibly relative to the FPC board body 1, and the connecting belt 4 can move in multiple directions conveniently, so that stress can be released better.

In the present embodiment, the second connection portion of the connection band 4 and the connection terminal 2 are connected by soldering. The connection band 4 and the connection terminal 2 can be electrically connected to each other well by soldering, and the connection is firm. In this embodiment, a notch corresponding to the shape of the connection band 4 is formed on one side of the FPC board body 1, so that the connection band 4 can be disposed in the notch. The opening part of breach is located to one side of connecting band 4 dorsad FPC board body 1, and the setting of connecting band 4 can not increase the volume of FPC connecting piece promptly. The setting method of the embodiment can enable the volume of the FPC connecting piece to be relatively small, enable the FPC connecting piece to be better suitable for connecting devices of different specifications and different types, and reduce assembly cost. In the breach of FPC board body 1 was located to connecting band 4, FPC board body 1 can prevent that connecting band 4 from receiving the external force destruction of X direction to play the guard action to connecting band 4 to a certain extent.

The FPC board body 1 is connected with one side of the connecting belt 4, other side edges of the connecting belt 4 are not connected with the FPC board body 1, and gaps are arranged between the other side edges of the connecting belt 4 and the FPC board body 1. The setting in clearance can make connecting band 4 move relatively FPC board body 1 more nimble, prevents that connecting band 4 from taking place the friction with FPC board body 1 in the removal process, or is blocked and be difficult to remove by FPC board body 1 to influence the release of stress.

Referring to fig. 4, in another alternative embodiment, the FPC board body 1 is not provided with a notch. The connecting band 4 is arranged in a protruding way relative to the FPC board body 1, and the connecting band 4 and the FPC board body 1 are integrally formed. The connection band 4 includes a first connection portion and a second connection portion. The first connecting portion is arranged on one side of the second connecting portion, the first connecting portion is connected with the FPC board body 1, and the second connecting portion is connected with the connecting terminals 2 in a welding mode. Connecting band 4 one side is through first connecting portion and FPC board body 1 fixed connection, and other sides all are not connected with FPC board body 1 to connecting band 4 is flexible. Thus, one end of the connection tape 4 is fixed to the FPC board body 1, and the other end is freely movable. When a plurality of connecting terminals 2 on the FPC board body 1 are stressed towards different directions, the connecting belt 4 connected with the connecting terminals 2 can move towards a plurality of directions relative to the FPC board body 1, so that the connecting belt 4 can effectively release stress generated by the stress of the connecting terminals 2 in a plurality of directions of an X direction, a Y direction and a Z direction, stress risks are eliminated, and the safety and reliability of product performance are ensured.

The utility model discloses the principle and the implementation mode of the utility model are explained by applying the concrete embodiment, and the explanation of the above embodiment is only used for helping to understand the technical scheme and the core idea of the utility model; meanwhile, for the general technical personnel in the field, according to the idea of the present invention, there are changes in the specific implementation and application scope, to sum up, the content of the present specification should not be understood as the limitation of the present invention.

Claims

1. The utility model provides a tear-resistant FPC connecting piece which characterized in that includes:

An FPC board body;

A plurality of connection terminals;

2. The tear resistant FPC connector of claim 1, wherein the connecting strap is integrally formed with the FPC board body.

3. The tear resistant FPC connector of claim 1, wherein the second connection portion has a width greater than the first connection portion.

4. The tear-resistant FPC connection member of claim 1, wherein the second connection portion and the connection terminal are connected by soldering.

5. The tear-resistant FPC connector according to claim 1, wherein a notch corresponding to the shape of the connection band is formed in one side of the FPC board body, so that the connection band can be disposed in the notch.

6. The tear-resistant FPC connector of claim 5, wherein a side of the connecting band facing away from the FPC board body is disposed at an opening of the notch.

7. The tear resistant FPC connector of claim 1, wherein a gap is provided between the FPC board body and the connection strap.