Connector female end capable of preventing torsion damage and connector

Abstract

The utility model discloses a connector female end and a connector capable of preventing torsion damage, the female end comprises a female end shell and a female terminal, the female terminal is inserted in the female end shell, the cross sections of the main body parts of the female end shell and the female terminal are circular, the surface of the female terminal is provided with a plurality of convex parts which protrude outwards, and the convex parts are arranged on the surface of the female terminal. And the convex part is propped against the inner wall of the female end shell, so that the female terminal and the female end shell form a close-fitting structure which can rotate relative to the axial direction. According to the utility model, the plurality of protruding parts are arranged on the female terminal and abut against the inner wall of the female end shell, so that the female terminal and the female end shell are tightly matched, shaking of the female terminal can be reduced, and meanwhile, when relative axial rotation is generated between the female terminal and the female end shell, the female terminal and the female end shell are tightly matched. The torsion-spring-like structure of the female terminal can be prevented from being damaged due to overlarge torsion generated when the male terminal is twisted.

Description

Technical Field

[0001] The utility model relates to the technical field of electrical connection devices, in particular to a connecting device for realizing electrical connection between electronic devices, such as a female terminal of a connector. Background Art

[0002] The electrical components of many products need to be plugged in through connectors to achieve electrical connection for purposes such as power-on and signal transmission, such as means of transportation, energy storage products, etc. In the prior art, there is a type of electrical contact using a connector with a torsion spring-like structure, which is arranged inside the female terminal housing. When the male electrical plug is inserted into the electrical contact of the female terminal, there are inevitably some gaps in some parts of the contact surface, resulting in a problem of shaking and an unstable structure. At the same time, when the male electrical plug (male terminal) is inserted into the interior of the electrical contact with a torsion spring-like structure (female terminal), torsion may occur. When the torsion force is too large (the frictional force is too large), the electrical contact with a torsion spring-like structure at the female end is easily twisted and deformed or even damaged. Summary of the Utility Model

[0003] Aiming at the defect in the prior art that the female terminal with a torsion spring structure is easily damaged due to excessive torsion generated when the male terminal is inserted, the utility model provides a female terminal of a connector and a connector with a more reasonable structural design, higher plugging reliability, more stable connection, and the ability to prevent torsional damage.

[0004] To solve the above technical problems, the utility model adopts the following technical solutions: A female terminal of a connector for preventing torsional damage includes a female terminal housing and a female terminal. The cross-sections of the main body parts of the female terminal housing and the female terminal are circular; both the female terminal housing and the female terminal are made of conductive metal, and the female terminal is inserted into the female terminal housing; a plurality of convex portions protruding outward are arranged on the surface of the female terminal, and the female terminal and the female terminal housing form a tightly fitting structure that can rotate relative to the axial direction by abutting the convex portions against the inner wall of the female terminal housing.

[0005] Further, the convex portions are evenly distributed around the surface of the female terminal.

[0006] Further, the convex portions are respectively arranged at positions near the front and rear ends of the surface of the female terminal, and at least one circle is arranged at each end.

[0007] Further, the part of the female terminal between the convex portions at the front and rear ends is a W-shaped or wavy structure and forms a cylindrical structure, and the joint part of the female terminal is fixed by welding.

[0008] Wherein, the convex portion is a fixed spherical convex portion or a movable ball convex portion.

[0009] Further, a plurality of first limiting members and a plurality of second limiting members are respectively arranged at the front end and the rear part of the female terminal housing. The first limiting members and the second limiting members respectively protrude towards the inside of the female terminal housing to form structures for stopping the front and rear ends of the female terminal respectively; the second limiting members are elastic arm structures that are inclined inwards and punched from the female terminal housing.

[0010] Further, positioning buttons protruding outwards are respectively arranged on the front end and the rear part surface of the female terminal housing, and the positioning is realized through the cooperation of the positioning buttons and the guiding grooves of the male terminal to achieve quick alignment and insertion.

[0011] Further, buckle members that protrude backwards and outwards at an angle are respectively arranged on both sides of the surface of the female terminal housing. The buckle members are bifurcated structures, and the buckle members are clamped with the housing of the male terminal.

[0012] Further, a plurality of grooves are arranged in the wire wrapping part at the tail of the female terminal housing, so that the wire wrapping part forms a structure with alternating concave and convex parts.

[0013] A connector includes the aforementioned female terminal.

[0014] In the utility model, a plurality of protruding parts are arranged on the female terminal to abut against the inner wall of the female terminal housing, so that the female terminal and the female terminal housing are tightly matched, thereby reducing the shaking of the female terminal. At the same time, when there is a relative axial rotation between the female terminal and the female terminal housing, it can avoid the damage of the female terminal caused by excessive torque (formed by friction or burrs driving) when the male terminal twists, which is a kind of torsion spring structure; in addition, the first limiting member and the second limiting member are arranged on the inner wall of the female terminal housing, which can cooperate to limit the movement of the female terminal and improve the stability. The female terminal is provided with a torsion spring-like concave wave or W-shaped structure, which has better elasticity and shrinkage force when in electrical connection with the male terminal. On the one hand, it increases the electrical contact area, and on the other hand, it increases the insertion and extraction life. Description of the Drawings

[0015] Figure 1 is the structural diagram of the utility model;

[0016] Figure 2 is the exploded structural diagram of the utility model;

[0017] Figure 3 is the sectional structural diagram of the utility model;

[0018] Figure 4 is Figure 3 the enlarged view of part A of

[0019] In the figure, 1 is the female terminal housing, 11 is the positioning button, 12 is the first limiting member, 13 is the second limiting member, 14 is the buckle member, 15 is the groove, 2 is the female terminal, 21 is the terminal piece, 22 is the protruding part, and 23 is the joint. Detailed Embodiment

[0020] In this embodiment, with reference to Figures 1-4 , the female terminal of the connector for preventing torsional damage includes a female terminal housing 1 and female terminals 2. Both the female terminal housing 1 and the female terminals 2 are made of conductive metal, such as copper sheets. The female terminals 2 are inserted into the female terminal housing 1. A number of convex portions 22 protruding outward are provided on the surface of the female terminals 2. The female terminals 2 and the female terminal housing 1 form a tightly fitting structure that can rotate relative to each other axially by abutting the convex portions 22 against the inner wall of the female terminal housing 1. In this way, not only can friction be provided to avoid shaking, but also good electrical contact performance can be maintained. In addition, when the male terminal is inserted into the female terminals 2 of a torsion spring-like structure, torsion may occur. Excessive torsion generated by the torsion may damage the female terminals. The convex portions 22 abut against the inner wall of the female terminal housing 1. While ensuring that the female terminals 2 are stable and do not shake, since the contact area between the female terminals 2 and the female terminal housing 1 is reduced, the friction is reduced. Therefore, when the torsion is too large, the female terminals 2 can rotate axially relative to the female terminal housing 1 to avoid damaging the female terminals 2. In this way, not only the stability of the female terminals 2 is enhanced, but also the flexibility is increased, effectively protecting the female terminals 2 and making them more adaptable and durable in a complex usage environment.

[0021] The cross-sections of the main body parts of the female terminal housing 1 and the female terminals 2 are circular, and the convex portions are evenly distributed around the surface of the female terminals 2.

[0022] Each convex portion is respectively arranged at positions near the front and rear ends of the outer surface of the female terminals 2, and at least one circle is arranged at each end. It should be noted that the front and rear in this embodiment refer to Figure 2 as the viewing angle. In the figure, the lower left is the front and the upper right is the rear. When the viewing angle of the product in the figure changes, the corresponding directions also change accordingly.

[0023] The parts of the female terminals 2 between the convex portions at the front and rear ends are of a W-shaped or wavy structure, that is, terminal pieces 21 are formed. The terminal pieces 21 are surrounded to form a cylindrical structure, and the seams 23 of the female terminals are fixed by welding. In traditional female terminals, the seams are usually not fixed after curling. A limiting member is first formed on the inner wall of the front end of the female terminal housing. When inserting into the female terminal housing, the female terminals are first curled until their outer diameter is smaller than the space size defined by the limiting member. After the female terminals are inserted into the female terminal housing, they deform under their own elastic force and become larger in diameter so as to be blocked by the limiting member at the front end of the female terminal housing. However, this method has the problems that the stability of the insertion combination of the male terminal is not high enough and the assembly operation is more cumbersome. In this embodiment, the seams 23 are first welded and fixed after the female terminals 2 are curled to form a stable structure. During assembly, the female terminals 2 are first inserted into the female terminal housing 1, and then a second limiting member 13 is formed on the inner wall of the front end of the female terminal housing 1. This structure makes the male terminal have higher stability after insertion, thereby increasing the electrical contact area and the plugging and unplugging life, and at the same time, the assembly operation is more convenient and fast.

[0024] The protruding portion 22 is a fixed spherical protruding portion or a movable ball protruding portion.

[0025] A plurality of first limit members 12 and a plurality of second limit members 13 are respectively arranged at the front end and the rear end of the female terminal housing 1. The first limit members 12 and the second limit members 13 respectively protrude towards the inside of the female terminal housing 1 to form structures for stopping the front and rear ends of the female terminal 2 respectively, restricting the front and rear movement of the female terminal 2; the second limit member 13 is an inwardly inclined elastic arm structure punched from the female terminal housing 1.

[0026] Positioning buttons 11 protruding outwards are respectively arranged on the front end and the rear surface of the female terminal housing 1. The positioning is achieved by the cooperation of the positioning buttons 11 and the guiding grooves of the male terminal to realize quick alignment and insertion.

[0027] Clamping members 14 protruding rearward and outwardly inclined are respectively arranged on both sides of the surface of the female terminal housing 1. The clamping members 14 are of a bifurcated structure and are clamped with the housing of the male terminal. By setting the clamping members 14 to be of a bifurcated structure, the flexibility can be increased, which is beneficial to the clamping with the male terminal housing.

[0028] A plurality of grooves 15 are arranged in the wire wrapping portion at the tail of the female terminal housing 1, making the wire wrapping portion form a structure with alternating convex and concave parts, which can increase the friction force and improve the fixing effect on the cable conductor.

[0029] A connector includes the aforementioned female terminal, and also includes a male terminal, and a complete connector is formed by the combination of the male and female terminals.

[0030] The above has made a detailed description of the present utility model. The above description is only the preferred embodiment of the present utility model, and the scope of implementation of the present utility model cannot be limited. That is, all equal changes and modifications made according to the scope of this application should still fall within the scope covered by the present utility model.

Claims

1. A female connector for preventing torsion damage, comprising a female housing and a female terminal, both of which are made of conductive metal, the female terminal being inserted into the female housing, the main body of which is circular in cross section, and characterized in that: A plurality of protruding parts protruding outward are arranged on the surface of the female terminal, and the female terminal and the female terminal housing form a tight-fitting structure capable of relative axial rotation by abutting the protruding parts against the inner wall of the female terminal housing.

2. The female connector end for preventing torsion damage according to claim 1, characterized in that: The protrusions are evenly distributed around the surface of the female terminal.

3. The female connector end for preventing torsion damage according to claim 1, characterized in that: Each protrusion is respectively arranged on the surface of the female terminal near the front and rear ends, and each end is provided with at least one circle.

4. The female connector end for preventing torsion damage according to claim 3, characterized in that: The portion between the front and rear end protrusions on the female terminal is a W-shaped or wavy structure, and is surrounded into a cylindrical structure. The seam portion of the female terminal is fixed by welding.

5. The female connector end preventing torsion damage according to claim 1, characterized in that: The protrusion is a fixed spherical protrusion or a movable ball protrusion.

6. The female connector end preventing torsion damage according to claim 1, characterized in that: A plurality of first limit members and a plurality of second limit members are respectively arranged at the front end and the rear end of the female end shell, and the first limit members and the second limit members respectively protrude toward the inside of the female end shell to form structures that respectively stop the front and rear ends of the female terminal; the second limit member is an inwardly inclined elastic arm structure punched out from the female end shell.

7. The female connector end for preventing torsion damage according to claim 1, characterized in that: Positioning buckles protruding outward are respectively arranged on the front end and rear surface of the female end shell, and the positioning buckles cooperate with the guide grooves of the male end to achieve quick alignment and plugging.

8. The female connector end preventing torsion damage according to claim 1, characterized in that: Buckles extending obliquely backward and outward are respectively arranged on both sides of the surface of the female end shell. The buckles are forked structures and are snap-connected with the shell of the male end through the buckles.

9. The female connector end for preventing torsion damage according to any one of claims 1 to 8, characterized in that: A plurality of grooves are arranged in the wire-wrapped portion at the rear of the female end housing, so that the wire-wrapped portion forms a structure of alternating concave and convex portions.

10. A connector, characterized in that: It comprises the female end as described in any one of claims 1 to 8.

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