Electrical connector

Abstract

An electrical connector includes a sleeve and a contact spring received in the sleeve, wherein the contact spring includes a first end ring, a second end ring, and a plurality of first spring leaves and second spring leaves located between the first and second end rings; the two ends of the first spring leaf are respectively connected to the first and second end rings as a whole, one end of the second spring leaf is connected to the first end ring, and the other end is not connected to the second end ring and abuts against the inner wall surface of the sleeve. The contact spring is stably held in the sleeve and has good elasticity.

Description

[Technical field]

[0001] The invention relates to an electric connector, in particular to an electric connector with a contact spring. [Background technology]

[0002] Chinese invention patent No. CN102005663A discloses a crown spring cage type pin and socket assembly and its socket, wherein the crown spring cage type socket comprises an inner sleeve, an outer sleeve is provided on the outer periphery of the inner sleeve, a crown spring is passed through the inner hole of the inner sleeve, and two elastic clips parallel to each other are symmetrically provided at the end portion of the inner hole of the outer sleeve, and the spacing between the two elastic clips is smaller than the minimum inner diameter of the crown spring.

[0003] The crown spring cage type pin and socket assembly includes a pin and a socket. The socket includes an inner sleeve, an outer sleeve is provided on the outer circumference of the inner sleeve, and a crown spring is inserted into the inner hole of the inner sleeve. Two elastic clips parallel to each other are symmetrically provided at the end of the inner hole of the outer sleeve, and the spacing between the two elastic clips is smaller than the inner diameter of the crown spring. The pin includes a needle-shaped plug connector, and a clamping structure that is tightly matched with the two elastic clips is provided on the circumference of the needle-shaped plug connector. An elastic clip is provided at the end of the socket. When plugging, the clamping structure on the pin is engaged with the elastic clip, so that the pin and the socket are reliably plugged in, and the pin is not easy to fall out of the socket. However, the abutting elastic force between the pin and the socket is insufficient.

[0004] Therefore, it is hoped to design an improved electrical connector to overcome the above-mentioned defects. [Summary of the invention]

[0005] The technical problem to be solved by the present invention is to provide an electrical connector with better holding force and elastic force.

[0006] To solve the above problems, the present invention can adopt the following technical solutions:

[0007] An electrical connector includes a sleeve and a contact spring accommodated in the sleeve, wherein the contact spring includes a first end ring, a second end ring, and a plurality of first spring leaves and second spring leaves located between the first and second end rings, wherein the two ends of the first spring leaf are respectively integrally connected to the first and second end rings, one end of the second spring leaf is connected to the first end ring, and the other end is not connected to the second end ring and abuts against the inner wall surface of the sleeve.

[0008] Compared with the prior art, the contact spring of the present invention is stably held in the sleeve and has better elastic force.

Brief Description of the Drawings

[0009] Figure 1 It is a three-dimensional diagram of the electrical connector assembly of the present invention.

[0010] Figure 2 yes Figure 1Exploded view of the electrical connector shown.

[0011] Figure 3 yes Figure 1 A three-dimensional diagram of the electrical connector assembly in the docking state.

[0012] Figure 4 yes Figure 3 The electrical connector assembly is shown in a cross-sectional view along the dashed line AA.

[0013]

Component Symbol Description

[0014] Electrical connector 100 sleeve 1

[0015] Accommodating chamber 101 Inner wall surface 102

[0016] Contact spring 2 First end ring 21

[0017] Second end ring 22 First reed 23

[0018] Second spring 24 support portion 241

[0019] Contact portion 20A Mating terminal 200

[0020] The following specific implementation manner will further illustrate the present invention in conjunction with the above-mentioned drawings. [Specific implementation method]

[0021] Ginseng Figure 1 to Figure 2 As shown, the present invention discloses an electrical connector 100 for transmitting large currents. The electrical connector 100 includes a sleeve 10 and a contact spring 20 received in the sleeve 10. The sleeve 10 is made of insulating plastic material, and the contact spring 20 is made of metal material.

[0022] Ginseng Figure 2 As shown, the sleeve 10 is cylindrical and is provided with a receiving cavity 101 for receiving the contact spring 20 . The receiving cavity 101 passes through one end of the sleeve 10 and is open, while the other end of the sleeve 10 is closed.

[0023] The contact spring 20 includes a first end ring 21, a second end ring 22, and a plurality of first spring leaves 23 and second spring leaves 24 located between the first and second end rings 21 and 22. The two ends of the first spring leaf 23 are integrally connected to the first and second end rings 21 and 22, respectively, to prevent the contact spring 20 from being severely deformed after being plugged in and out many times. One end of the second spring leaf 24 is connected to the first end ring 21, and the other end is not connected to the second end ring 22 and abuts against the inner wall surface 102 of the sleeve 10, thereby forming independent structures. The second spring leaf 24 bends outward near the second end ring 22, thereby being spaced a distance from the second end ring 22.

[0024] The first and second springs 23 and 24 are evenly and spaced apart between the first and second end rings 21 and 22. All the springs are gradually bent inward from both ends to the middle, forming a contact portion 20A located in the middle and in a contracted shape. The contact portion 20A is electrically connected to the docking terminal 200 to stably transmit a large current. Figure 4 As shown, the butt terminal 200 is accommodated in the contact spring 20 , the contact portion 20A is evenly in contact with the outer peripheral surface of the butt terminal, and the butt terminal 200 does not extend beyond the second end ring 22 after butt connection.

[0025] The second spring leaf 24 is reversely bent near the second end ring 22 to form a support portion 241, which is independent of each other and elastically abuts against the inner wall surface 102 of the sleeve 10, providing reliable elastic force for the contact spring 20. The support portion 241 does not extend beyond the second end ring 22. The support portion 241 has a contact surface abutting against the inner wall surface 102 of the sleeve, and the contact surface is an arc surface, which is conducive to providing a smooth feel during the plugging and unplugging process.

[0026] Ginseng Figure 4 As shown, the first and second end rings 21, 22 are attached to the inner wall surface 102 of the receiving cavity 101, the first end ring is fixed at the opening of the receiving cavity 101, and the second end ring 22 is fixed at the innermost side of the sleeve. The two end rings 21, 22 can stably hold the contact spring 20 to prevent it from loosening or position displacement after multiple insertions and withdrawals.

[0027] The above embodiments are preferred embodiments of the present invention, but not all embodiments. Any equivalent changes made to the technical solution of the present invention by a person skilled in the art after reading the present specification are all covered by the claims of the present invention.

Claims

1. An electrical connector, comprising a sleeve and a contact spring received in the sleeve, wherein the contact spring comprises a first end ring, a second end ring, and a plurality of first spring leaves and second spring leaves located between the first and second end rings, characterized in that: The two ends of the first spring sheet are integrally connected to the first and second end rings respectively, one end of the second spring sheet is connected to the first end ring, and the other end is not connected to the second end ring and abuts against the inner wall surface of the sleeve.

2. The electrical connector according to claim 1, wherein: The second spring piece is bent outwardly adjacent to the second end ring so as to be spaced apart from the second end ring by an end distance.

3. The electrical connector according to claim 2, wherein: The first and second spring sheets are evenly and spaced apart between the first and second end rings.

4. The electrical connector according to claim 3, wherein: The sleeve is provided with an opening penetrating forward, the first end ring is fixed at the opening, and the second end ring is fixed in the sleeve.

5. The electrical connector according to claim 2, wherein: The second spring leaf is reversely bent adjacent to the second end ring to form a supporting portion.

6. The electrical connector according to claim 5, wherein: The supporting parts are independent of each other and elastically abut against the inner wall surface of the sleeve.

7. The electrical connector according to claim 1, wherein: The first and second spring sheets are structures that gradually bend inward from both ends to the middle.

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