CN210224357U

CN210224357U - Female terminal is connected to sword formula

Info

Publication number: CN210224357U
Application number: CN201920878115.9U
Authority: CN
Inventors: Yan Zhao; 赵延; Zengliang Yu; 于增亮; Zhaoshu Liu; 刘兆书; Lamasaimi Aren; 阿仁·拉马塞米
Original assignee: Delphi Electrical Centers Shanghai Co Ltd
Current assignee: Delphi Electrical Centers Shanghai Co Ltd
Priority date: 2019-06-12
Filing date: 2019-06-12
Publication date: 2020-03-31
Anticipated expiration: 2029-06-12

Abstract

The utility model relates to a knife-type connecting female terminal, which comprises a connecting part and a crimping part; comprises a connecting part and a crimping part; the connecting part comprises a box body with openings at two ends and a contact elastic sheet, and the contact elastic sheet is fixed on the inner side surface of the box body in a riveting mode; the crimping part comprises a double-wing pressing sheet, the double-wing pressing sheet is wrapped at the end part of the transmission line to be connected, and a contact on the male terminal of the contact spring sheet is connected. Compared with the prior art, the utility model has excellent electrical performance, and adopts the integrated conductor design of the elastic arm, the fixed plate and the contact elastic sheet, so that the total contact resistance value from the male end to the female end is extremely low, the transmission efficiency is improved, and the transmission loss is reduced; this technical scheme is the pure stamping workpiece of riveting in the mould, and all process steps are all accomplished in the mould, do not use automatic arm to put and weld, and the off-the-shelf stability of batch production is higher.

Description

Female terminal is connected to sword formula

Technical Field

The utility model relates to a connecting terminal part especially relates to a female terminal is connected to sword formula.

Background

The knife type connecting terminal in the prior art is mainly characterized in that a front end contact elastic sheet is connected with a terminal main body by utilizing a laser welding process, and a special convex angle characteristic is arranged on a rear wire covering wing tip to optimize the crimping effect.

Although the PCON21 terminal produced by TE company has excellent performance and can support a lead wire with a larger wire diameter, the PCON21 terminal needs the assistance of a high-precision laser welding process, and the stability of a product is low when the automatic equipment is placed and welded in mass production, so that the yield is easily reduced.

US20180123276a1 discloses a flat contact receptacle comprising a connection portion and a receptacle body of the connection portion. The socket body has a flat contact socket and a blocking element. The flat contact receptacle extends along a flat contact plane and receives flat contacts in an insertion direction at an insertion opening of the flat contact receptacle. The blocking element is located opposite the insertion opening in the insertion direction and defines a flat contact receptacle in the insertion direction. The blocking element extends transversely to the insertion direction from a cantilever arm extending in the insertion direction. The contact spring in the flat contact socket can be prepared only by utilizing a laser welding process, and compared with a pure stamping die, the flat contact socket is high in manufacturing cost and low in yield.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a female terminal is connected to sword formula in order to overcome the defect that above-mentioned prior art exists.

The purpose of the utility model can be realized through the following technical scheme:

a blade-type connection female terminal includes a connection portion and a crimping portion;

the connecting part comprises a box body with openings at two ends and a contact elastic sheet, and the contact elastic sheet is fixed on the inner side surface of the box body in a riveting mode;

the crimping part comprises a double-wing pressing sheet, the double-wing pressing sheet is wrapped at the end part of the transmission line to be connected, and a contact on the male terminal of the contact spring sheet is connected.

Furthermore, the contact spring pieces are symmetrically riveted on two inner side walls of the box body, and the connection contact of the male terminal can be clamped between the contact spring pieces when the male terminal is inserted into the box body.

Furthermore, the contact spring piece comprises a fixed plate and a plurality of spring arms distributed on the fixed plate in parallel,

the elastic arm is contacted with the connecting contact of the male terminal;

the fixed plate is riveted on two inner side walls of the box body.

Furthermore, one end of the elastic arm is connected to the fixing plate, and the other end of the elastic arm tilts and abuts against the connecting contact of the male terminal.

Furthermore, the elastic arm and the contact elastic sheet are both made of elastic metal conductor materials.

Furthermore, the box body is provided with a buckling seam along the edge of the box body, two sides of the buckling seam are provided with lock catches, and the buckling seam is compressed after the lock catches are buckled, so that the male terminals are arranged in the box body in a matched mode.

Furthermore, the tail end of the double-wing pressing piece is also provided with an extension pressing piece.

Furthermore, a plurality of parallel covered wires are arranged on the inner surfaces of the double-wing pressing sheet and the extension pressing sheet.

Furthermore, the connecting part and the crimping part are both made of copper or copper alloy materials.

Furthermore, a plurality of parallel covering wires are also arranged on the outer surface of the extension pressing sheet.

Compared with the prior art, the utility model has the advantages of it is following:

1) excellent electrical property has more adopted the integrated conductor design of bullet arm, fixed plate and contact shell fragment for public end is extremely low to female end's total contact resistance value, has promoted transmission efficiency, has reduced transmission loss.

2) With big line footpath transmission wire's good compatibility, the utility model discloses a two wing preforming and the design of the envelope rank wing that the extension preforming constitutes when making the product adopt conventional crimping with big line footpath wire, possess and be close welded electrical property. Ultrasonic welding is not needed, and the existing problems of high cost, large size and the like are avoided.

3) The utility model discloses a riveted pure stamping workpiece in the mould, all steps are whole to be accomplished in the mould, are not suitable for automatic arm to put and weld, and the off-the-shelf stability of batch production is higher, adopts the design of one set of stamping die production also more to do benefit to cost control.

Drawings

Fig. 1 is a schematic view of the overall structure of the middle blade type connecting female terminal of the present invention;

FIG. 2 is a cross-sectional view of the female connector with a middle blade of the present invention;

fig. 3 is a schematic structural view of a contact spring of the present invention;

fig. 4 is a schematic diagram of the design of the tundish step wing of the present invention.

In the figure: 1. connecting part, 11, box body, 111, fastening seam, 112, latch, 12, contact spring, 121, fixing plate, 122, spring arm, 2, press-connection part, 21, double-wing pressing piece, 22, extension pressing piece, 23 and covered wire.

Detailed Description

The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

Examples

The blade connection female terminal in the present embodiment includes a connection portion 1 and a crimping portion 2, see fig. 1.

Connecting part 1: the box body comprises a box body 11 with two open ends and a contact elastic sheet 12, wherein the contact elastic sheet 12 is fixed on the box body 11 in a riveting mode, and the figure 1 is shown.

Crimping part 2: the crimping part 2 comprises a double-wing pressing piece 21, the double-wing pressing piece 21 is wrapped at the end part of the transmission line to be connected, and the contact elastic piece 12 is connected with a contact on the male terminal, so that an electric signal of the transmission line to be connected sequentially flows through the crimping part 2 and the connecting part 1 and flows into the male terminal through the contact elastic piece 12.

Contact spring 12 part: the male terminal is symmetrically riveted to two inner side walls of the box body 11, as shown in fig. 2, when the male terminal is inserted into the box body 11, the connection contact of the male terminal is clamped between the contact spring pieces 12. The box body 11 has a plurality of riveting points fixed to the fixing plate 121. The contact spring 12 comprises a fixing plate 121 and a plurality of spring arms 122 distributed on the fixing plate 121 in parallel, wherein the spring arms 122 are in contact with the connection contacts of the male terminal; the fixing plate 121 is riveted to two inner sidewalls of the case 11.

The elastic arm 122 part: one end of which is connected to the fixing plate 121 and the other end of which is tilted and pressed against the connection contact of the male terminal, see fig. 3. In specific implementation, the connecting part and the crimping part are both made of copper or copper alloy materials.

The box body 11 part: the upper edge of the box body is provided with a buckling seam 111, two sides of the buckling seam 111 are provided with buckles 112, and the buckling seam 111 is compressed after the buckles 112 are buckled, so that the male terminal is locked in the box body 11. In specific implementation, the lock catch 112 is made of an elastic material, and the end of the double-wing pressing piece 21 is further provided with an extension pressing piece 22. A plurality of parallel covered wires 23 are arranged on the inner surfaces of the double-wing pressing sheet 21 and the extension pressing sheet 22, and a plurality of parallel grooves 23 are also arranged on the outer surface of the extension pressing sheet 22, as shown in fig. 4.

The embodiments described above are intended to facilitate the understanding and use of the invention by those skilled in the art. It will be readily apparent to those skilled in the art that various modifications to these embodiments may be made, and the generic principles described herein may be applied to other embodiments without the use of the inventive faculty. Therefore, the present invention is not limited to the above embodiments, and those skilled in the art should make improvements and modifications within the scope of the present invention according to the disclosure of the present invention.

Claims

1. The knife-type connecting female terminal is characterized by comprising a connecting part (1) and a crimping part (2);

the connecting part (1) comprises a box body (11) with two open ends and a contact elastic sheet (12), wherein the contact elastic sheet (12) is fixed on the inner side surface of the box body (11) in a riveting mode;

the crimping part (2) comprises a double-wing pressing piece (21), the double-wing pressing piece (21) is wrapped at the end part of the transmission line to be connected, and the contact elastic piece (12) is connected with a contact on the male terminal.

2. The female blade-type connection terminal according to claim 1, wherein the contact spring (12) is symmetrically riveted to two inner sidewalls of the box (11), and the male terminal is inserted into the box (11) such that the connection contact of the male terminal is held between the contact springs (12).

3. The female blade connection terminal according to claim 2, wherein the contact spring (12) comprises a fixed plate (121) and a plurality of spring arms (122) arranged in parallel on the fixed plate (121),

the elastic arm (122) is contacted with the connecting contact of the male terminal;

the fixing plates (121) are riveted on two inner side walls of the box body (11).

4. A blade connection female terminal according to claim 3, wherein one end of the spring arm (122) is connected to the fixing plate (121), and the other end is tilted and pressed against the connection contact of the male terminal.

5. The female blade connection terminal according to claim 3, wherein the resilient arm (122) and the contact spring (12) are made of elastic metal conductor material.

6. The female terminal of claim 2, wherein the box (11) is provided with a locking seam (111) along an edge thereof, the locking seams (112) are provided on two sides of the locking seam (111), and the locking seam (111) is compressed after the locking seam (112) is locked, so that the male terminal is placed in the box (11) during alignment.

7. The female blade connection terminal according to claim 2, wherein the double-wing pressing piece (21) further has an extended pressing piece (22) at its end.

8. The female blade connection terminal according to claim 7, wherein the inner surfaces of the pressing plate (21) and the extended pressing plate (22) are provided with a plurality of parallel covered wires (23).

9. A blade connection female terminal according to claim 1, wherein the connecting portion (1) and the crimping portion (2) are both made of copper or copper alloy material.