CN114824878A

CN114824878A - Female terminal of automobile connector

Info

Publication number: CN114824878A
Application number: CN202210435809.1A
Authority: CN
Inventors: 胡光才; 万军; 朱新爱; 方培喜
Original assignee: Shanghai Laimu Electronic Co Ltd
Current assignee: Shanghai Laimu Electronic Co Ltd
Priority date: 2022-04-24
Filing date: 2022-04-24
Publication date: 2022-07-29

Abstract

The invention relates to an automobile connector female terminal, which comprises a shell and a wire wrapping body, wherein the shell is of a shell-and-tube structure, the shell comprises a first bending section, a second bending section, a third bending section, a fourth bending section and a fifth bending section which are sequentially connected, the fifth bending section is bent towards the first bending section to form a closed bending structure, and the middle parts of the first bending section and the third bending section are respectively and oppositely provided with a first clamping part and a second clamping part. Compared with the prior art, the shell is of a shell-and-tube structure and is constructed through an integrated continuous bending structure, the first clamping portion and the second clamping portion are arranged inside the shell-and-tube structure, and the first elastic sheet and the second elastic sheet which are overlapped with each other are arranged on the first clamping portion, so that the male terminal can be inserted from the axial direction of the shell and clamped between the first clamping portion and the second clamping portion, axial and radial impact force can be effectively avoided, and a stable electric connection structure is constructed.

Description

Female terminal of automobile connector

Technical Field

The invention relates to the field of connectors, in particular to a female terminal of an automobile connector.

Background

The automobile terminal is used as a transmission joint of various electronic wire harnesses, current and signals in the whole automobile, the stability requirement in the production process is strict, and if the wire harnesses correspond to nerve lines of a human body, the automobile terminal is a connection point in each nerve line.

The existing miniature connector female terminal is generally composed of a contact part (provided with a clamping structure, which can be called as a clamping contact part) and a wire covering part, wherein the contact part is matched with a male terminal through an inserting structure, the male terminal is inserted and fixed in the female terminal through the inserting structure of the contact part in a service state to form an electric connection structure, and the contact part and the female terminal in the existing product are easy to move due to axial and radial stress, so that the electric connection fails, and the stability of the contact part of the female terminal is poor.

Disclosure of Invention

The shell is a shell-and-tube structure and is constructed by an integrated continuous bending structure, the first clamping portion and the second clamping portion are arranged inside the shell-and-tube structure, so that the male terminal can be inserted from the axial direction of the shell and clamped between the first clamping portion and the second clamping portion, and the first clamping portion is provided with the first elastic sheet and the second elastic sheet which are overlapped with each other, so that axial and radial impact force can be effectively avoided, and a stable electric connection structure is constructed.

The purpose of the invention can be realized by the following technical scheme:

the invention aims to provide an automobile connector female terminal, which comprises a shell and a wire wrapping body, wherein the automobile connector female terminal specifically comprises:

the shell is of a shell-and-tube structure and comprises a first bending section, a second bending section, a third bending section, a fourth bending section and a fifth bending section which are sequentially connected, wherein the fifth bending section is bent towards the first bending section to form a closed bending structure, the middle parts of the first bending section and the third bending section are respectively and oppositely provided with a first clamping part and a second clamping part, a male terminal can be axially inserted into the shell and clamped between the first clamping part and the second clamping part, and the first clamping part comprises a first elastic sheet and a second elastic sheet which are mutually laminated;

the wire wrapping body is connected with the shell.

Furthermore, the first bending section, the second bending section, the third bending section and the fourth bending section form a first tubular closing structure.

Further, the fifth bending section is of an inverted U-shaped bending structure.

Furthermore, the fifth bending section and the first bending section form a second tubular closing structure.

Further, the second clamping part is a convex clamping structure.

Further, in the axial direction of the casing, the first bending section comprises a first bending section rear section and a first bending section front section, and the first elastic sheet and the second elastic sheet are respectively arranged at the end parts of the first bending section rear section and the first bending section front section.

Furthermore, the end part of the front section of the first bending section is bent and pressed on the surface of the end part of the rear section of the first bending section to form a laminated bending structure.

Furthermore, the end of the first bending section is provided with a convex claw, the shell is provided with a limiting through hole, and the convex claw is inserted into the limiting through hole to form an interference fit structure, namely a plug-pin stabilizing structure.

Furthermore, a reinforcing limiting plate is arranged in the middle of the fifth bending section and is arranged above the first clamping part.

Furthermore, the envelope body includes the envelope body and locates the envelope fin on the envelope body, the envelope fin is flexible metal material.

Compared with the prior art, the invention has the following technical advantages:

1) the shell among this technical scheme is the shell-and-tube structure and founds through the serialization bending structure of integral type, locates inside the shell-and-tube structure with first clamping part and second clamping part for the male terminal can insert and centre gripping between first clamping part and second clamping part from the axial of shell, can effectively avoid axial and radial impact force, has built stable electric connection structure.

2) In the technical scheme, the end part of the front section of the first bending section is bent and pressed on the surface of the end part of the rear section of the first bending section to form a laminated bending structure. Along with inserting to joining in marriage male terminal 3, the portion elastic deformation that upwards presses of first bending segment back end and the pressure of first bending segment anterior segment, the downward elastic deformation of second clamping part to reaction male terminal produces contact pressure, and first clamping part constitutes great centre gripping contact surface with male terminal 3 this moment.

3) The fixing of 4 face bending structures has been found through the convex claw among this technical scheme for the structure of whole casing is more stable, further makes the centre gripping fixed knot structure that first clamping part, second clamping part and male terminal found more stable.

4) The shaping facet that the reinforcement limiting plate constitutes among this technical scheme has certain clearance H with first clamping part, guarantees on the one hand that the insertion force normally does not receive the interference, and the second aspect is when receiving external impact, and the facet that the reinforcement limiting plate constitutes can block the ascending impact displacement of first clamping part, avoids shell fragment terminal impact excessive pressure fatigue damage.

Drawings

Fig. 1 is a schematic perspective view of a female terminal of an automotive connector according to the present invention;

fig. 2 is a schematic diagram of the arrangement position of the limiting through hole in the technical scheme;

fig. 3 is a schematic axial sectional structure diagram of the female terminal of the automotive connector in the present technical solution;

fig. 4 is a schematic radial sectional structure diagram of the female terminal of the automotive connector according to the present embodiment;

fig. 5 is a schematic view of an arrangement position of the reinforcing limiting plate in the technical solution;

fig. 6 is a schematic structural diagram of the clamping portion in the present technical solution.

In the figure: 1. the novel wire covering comprises a shell, 11, a first bending section, 12, a second bending section, 13, a third bending section, 14, a fourth bending section, 15, a fifth bending section, 16, a limiting through hole, 111, a first clamping part, 131, a second clamping part, 151, a reinforcing limiting plate, 2, a wire covering body, 21, a wire covering body, 22 and a wire covering tail wing.

Detailed Description

The invention is described in detail below with reference to the figures and specific embodiments. In the technical scheme, the characteristics such as the part type, the material name, the connection structure and the like which are not explicitly described are all regarded as common technical characteristics disclosed in the prior art.

The invention aims to provide a female terminal of an automobile connector, which comprises a shell 1 and a wire wrapping body 2, wherein the shell is particularly referred to in figures 1 to 4.

Casing 1 is shell and tube structure, and casing 1 is including the first bending segment 11, second bending segment 12, third bending segment 13, fourth bending segment 14 and the fifth bending segment 15 that connect gradually, has built the serialization bending structure of an integral type promptly, all adopts elastic metal material, fifth bending segment 15 is buckled towards first bending segment 11 and is constituted closed type bending structure, the middle part of first bending segment 11 and third bending segment 13 is equipped with first clamping part 111 and second clamping part 131 respectively relatively, first clamping part 111 is including folding first shell fragment 1111 and the second shell fragment 1112 that press each other, and public terminal 3 can insert and centre gripping between first clamping part 111 and second clamping part 131 from casing 1's axial.

In specific implementation, the first bending section 11, the second bending section 12, the third bending section 13 and the fourth bending section 14 form a first tubular closed structure. The fifth bending section 15 is an inverted U-shaped bending structure. The fifth bending section 15 and the first bending section 11 form a second tubular closing structure. The first bend 11 now acts as a divider between the first tubular closure and the second tubular closure.

In specific implementation, the second clamping portion 131 is a protrusion-type clamping structure, see fig. 6. I.e. the second clamping portion 131 is obtained by the middle part of the third bend section 13 being convex.

In specific implementation, in the axial direction of the housing 1, the first bending section 11 includes a first bending section rear section and a first bending section front section, and the first elastic sheet 1111 and the second elastic sheet 1112 are respectively disposed at ends of the first bending section rear section and the first bending section front section. The ends of the first elastic sheet 1111 and the second elastic sheet 1112 are bent in the same direction, so that the end of the first elastic sheet 1111 presses down to the upper surface of the end of the second elastic sheet 1112, thereby forming a laminated bending structure. Along with inserting to joining in marriage male terminal 3, the portion of pressure of folding of first bending segment back end and first bending segment anterior segment upwards elastic deformation, elastic deformation all goes up and compresses tightly male terminal 3 surface on the tip of first shell fragment 1111 and second shell fragment 1112 promptly, and the downward elastic deformation of second clamping part 131 to reaction male terminal 3 produces contact pressure, and the second shell fragment 1112 of first clamping part 111 constitutes great centre gripping contact surface with male terminal 3 this moment.

This technical scheme can also be according to the requirement for terminal contact pressure, adjusts the distance between first clamping part 111 and the second clamping part 131, comes the adjustment suitable contact pressure requirement.

During specific implementation, the end of the first bending section 11 is provided with a convex claw, the shell is provided with a limiting through hole 16, and the convex claw is inserted into the limiting through hole 16 to form an interference fit structure, namely a plug-and-pin stabilizing structure. The fixing of the 4-face bending structure is constructed through the convex claws, so that the structure of the whole shell 1 is more stable, and the clamping and fixing structure constructed by the first clamping part 111, the second clamping part 131 and the male terminal 3 is further more stable.

In specific implementation, a reinforcing limiting plate 151 is disposed in the middle of the fifth bending section 15, referring to fig. 5 and 6, the reinforcing limiting plate 151 is disposed above the first clamping portion 111. After the mating male terminal 3 is inserted, the molded facet formed by the reinforcing limiting plate 151 has a certain clearance H from the first clamping portion 111. On one hand, the normal insertion force is guaranteed not to be interfered, and on the second hand, when the insertion force is impacted externally, the small plane formed by the reinforcing limiting plate 151 can block the upward impact displacement of the first clamping part 111, so that the elastic sheet terminal is prevented from impacting, over-pressing and fatigue damage.

In specific implementation, the wire wrapping body 2 is connected with the shell 1. The wire wrapping body 2 comprises a wire wrapping body 21 and a wire wrapping tail 22 arranged on the wire wrapping body 21, wherein the wire wrapping tail 22 is made of flexible metal materials. The wire wrapping body 2 is wrapped with the end part of the circuit to be connected through the wire wrapping tail 22 made of flexible metal materials to form an electric connection structure.

The embodiments described above are described to facilitate an 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 based on the disclosure of the present invention.

Claims

1. An automotive connector female terminal, comprising:

the shell (1), the shell (1) is of a shell-and-tube structure, the shell (1) comprises a first bending section (11), a second bending section (12), a third bending section (13), a fourth bending section (14) and a fifth bending section (15) which are sequentially connected, the fifth bending section (15) bends towards the first bending section (11) to form a closed bending structure, the middle parts of the first bending section (11) and the third bending section (13) are respectively and oppositely provided with a first clamping part (111) and a second clamping part (131), a male terminal (3) can be axially inserted into the shell (1) and clamped between the first clamping part (111) and the second clamping part (131), and the first clamping part (111) comprises a first elastic sheet (1111) and a second elastic sheet (1112) which are overlapped with each other;

the wire wrapping body (2), the wire wrapping body (2) is connected with the shell (1).

2. The female terminal of claim 1, wherein the first bent section (11), the second bent section (12), the third bent section (13) and the fourth bent section (14) form a first tubular closed structure.

3. The female terminal of claim 1, wherein the fifth bent section (15) has an inverted U-shaped bent structure.

4. The female automotive connector terminal according to claim 3, wherein the fifth bent section (15) and the first bent section (11) form a second tubular closed structure.

5. The female automotive connector terminal according to claim 1, wherein the second clamping portion (131) is a male clamping structure.

6. The female terminal of claim 1, wherein the first bending section (11) comprises a rear section and a front section in the axial direction of the housing (1), and the first resilient piece (1111) and the second resilient piece (1112) are respectively disposed at the ends of the rear section and the front section.

7. The female terminal of claim 6, wherein the ends of the first resilient piece (1111) and the second resilient piece (1112) are bent in the same direction, such that the end of the first resilient piece (1111) presses down on the upper surface of the end of the second resilient piece (1112) to form a folded structure.

8. The female terminal of claim 6, wherein a protruding claw is arranged at the end of the first bending section (11), a limiting through hole (16) is arranged on the shell, and the protruding claw is inserted into the limiting through hole (16).

9. The female terminal of claim 1, wherein a reinforcing limiting plate (151) is disposed in the middle of the fifth bending section (15), and the reinforcing limiting plate (151) is disposed above the first clamping portion (111).

10. The female terminal of automotive connector according to claim 1, wherein the wire-wrapping body (2) comprises a wire-wrapping body (21) and a wire-wrapping tail (22) arranged on the wire-wrapping body (21), and the wire-wrapping tail (22) is made of a flexible metal material.