CN221928626U - A connector with improved terminal structure - Google Patents

Abstract

The utility model discloses a connector with an improved terminal structure, which comprises a rubber core, a shell and terminals, wherein the terminals comprise at least two positive terminals and at least two negative terminals, the positive terminals are connected into an integrated structure through positive connecting arms, the negative terminals are connected into an integrated structure through negative connecting arms, the positive connecting arms and the negative connecting arms are not cut off when the rubber core is formed, and the positive connecting arms and the negative connecting arms are respectively embedded into the rubber core together with the positive terminals and the negative terminals; the front parts of the two terminals positioned at the outermost sides of the two sides are respectively provided with a clamping hook protruding outwards. Therefore, the deformation of the terminal in the operation processes of stamping production, electroplating, transportation, injection molding and the like can be effectively prevented, and the deformation caused by removing the front end material belt after molding can be avoided, so that the defective rate can be reduced. The clamping hooks are arranged on the outer side of the head of the negative terminal, so that the design of clamping pieces in stainless steel can be omitted, the cost of parts and a die can be reduced, the structure is simpler, the quality is more reliable, and the forming process can be simplified.

Description

A connector with improved terminal structure

Technical Field

The utility model relates to the technical field of electronic connection devices, in particular to a connector, such as a TYPE-C connector.

Background Art

Connectors are widely used in various electronic devices such as mobile phones, tablets, cameras, etc. Common ones include Type-C interface connectors, Lightning interface connectors, and so on. Taking the TYPE-C connector as an example, it generally includes a metal shell, a rubber core, terminals, a middle clip, etc. The terminals and the middle clip are usually combined with the rubber core by injection molding. The terminals generally include left and right positive terminals and left and right negative terminals, and may also have signal terminals, etc. In existing connectors, each terminal is usually independent and separated from each other. This structure causes the terminal to deform sometimes during stamping production, electroplating, transportation, and even injection molding, resulting in a high defective rate. Although some terminals have a joint belt reserved at the front end during production, this joint belt is only temporary and will be removed after injection molding. This will not only increase the process, but also may cause the terminal to deform when removing the joint belt.

In addition, in order to provide a holding force to the buckle inside after the male plug is inserted, it is generally achieved through the middle clip or the hook head protruding on the outer edge of the split hook. However, this not only requires a separate set of hook molds, which will significantly increase the mold cost and part cost. In addition, during injection molding, there is an additional process of placing the hook, which increases the trouble of operation, reduces efficiency, and also increases quality risks.

Utility Model Content

The utility model aims at the shortcomings of the prior art and provides a connector with an improved terminal structure which has a simpler and more reasonable structure, terminals that are not prone to deformation, fewer parts, lower costs, and a simpler molding process.

In order to solve the above technical problems, the utility model adopts the following technical solutions: a connector with an improved terminal structure, comprising a rubber core, a shell and a terminal, the terminal is fixed in the rubber core, and the shell is fixed outside the rubber core; the terminal comprises at least two positive terminals and at least two negative terminals, characterized in that: the positive terminals are connected as an integral structure through a positive connecting arm, and the negative terminals are connected as an integral structure through a negative connecting arm, and when the rubber core is formed, the positive connecting arm and the negative connecting arm are respectively buried in the rubber core together with the positive terminal and the negative terminal; the front parts of the two outermost terminals on both sides are respectively provided with outwardly protruding hooks, and the hooks are used to form a holding structure after the male head is inserted.

Furthermore, the negative terminal comprises two terminals, which are respectively arranged at the outer positions of the left and right sides to be close to the two side edges of the rubber core; and hooks protruding outwards are respectively arranged on the outer sides of the front parts of the two negative terminals.

Furthermore, the positive electrode connecting arm is arranged at the front end of each positive electrode terminal, and each negative electrode connecting arm is arranged at the front end of each negative electrode terminal.

Furthermore, the plane where the positive terminal is located is staggered with the plane where the negative terminal is located to form a structure that is staggered along the thickness direction of the rubber core; the positive electrode connecting arm and the negative electrode connecting arm are bent and extended toward each other to form a structure that is partially located in the same plane.

Furthermore, the length of the negative terminal is greater than that of the positive terminal, and the negative electrode connecting arm extends in front of the positive electrode connecting arm.

Furthermore, the positive electrode connecting arm and the positive electrode terminal form an L-shaped structure, and the negative electrode connecting arm and the negative electrode terminal also form an L-shaped structure.

Furthermore, the hook is bent outward from the outside of the head of the negative terminal to form a roughly zigzag structure, or an L-shaped, straight-shaped or other available structural shapes, and the hook and the negative terminal are an integrated structure.

Furthermore, outwardly convex buckle parts are arranged on both sides of the front end of the rubber core, and inwardly concave buckle grooves are arranged behind the buckle parts; two hooks are respectively embedded in the two buckle parts, and the outer side surfaces of the hooks are flush with the outer sides of the buckle parts so that the hooks form an exposed structure.

Alternatively, the positive terminal and the negative terminal are in the same plane (parallel to the surface of the rubber core).

The utility model connects the positive terminal and the negative terminal on the left and right sides into an integrated structure through connecting arms. The connecting arms are not cut off during injection molding and are directly buried in the rubber core. This can effectively prevent the terminal from deforming during stamping production, electroplating, transportation, injection molding and other operations, and can also avoid deformation caused by removing the front end strip after molding, thereby reducing the defective product rate, extending the mold life, and ensuring the product molding quality. By arranging a hook on the outside of the negative terminal head, the design of the stainless steel clip can be omitted, reducing the cost of parts and molds, making the structure simpler, the quality more reliable, and simplifying the molding process.

BRIEF DESCRIPTION OF THE DRAWINGS

Figure 1 is an overall structural diagram of the utility model;

FIG2 is a structural diagram of the terminal and the rubber core after injection molding;

FIG3 is a side structural diagram of the terminal;

FIG4 is a three-dimensional structural diagram of a terminal;

FIG5 is a three-dimensional structural diagram of the terminal from another angle;

FIG6 is a side view of the terminal structure of the second embodiment;

FIG7 is a three-dimensional structural diagram of a terminal according to a second embodiment;

FIG. 8 is a three-dimensional structural diagram of the terminal of the second embodiment from another angle.

In the figure, 1 is a rubber core, 11 is a buckle part, 12 is a buckle groove, 2 is a shell, 3 is a terminal, 31 is a positive terminal, 32 is a negative terminal, 33 is a positive connecting arm, 34 is a negative connecting arm, and 35 is a hook.

DETAILED DESCRIPTION

In this embodiment, referring to Fig. 1 to Fig. 5, the connector with improved terminal structure includes a rubber core 1, a shell 2 and a terminal 3, wherein the terminal 3 is fixed in the rubber core 1 and the shell 2 is fixed outside the rubber core 1; the terminal 3 includes at least two positive terminals 31 and at least two negative terminals 32, generally two each, and three or four in special cases. The positive terminals 31 are connected to form an integral structure through a positive connecting arm 33, and the negative terminals 32 are connected to form an integral structure through a negative connecting arm 34. When molding the rubber core 1, the positive connecting arm 33 and the negative connecting arm 34 are respectively buried in the rubber core 1 together with the positive terminal and the negative terminal through injection molding, so that the positive connecting arm 33 and the negative connecting arm 34 will not be exposed outside the rubber core 1.

The negative terminals 32 include two terminals, which are respectively arranged at the outer positions of the left and right sides to be close to the two side edges of the rubber core 1; hooks 35 protruding outward are respectively arranged on the outer front parts of the two negative terminals 32, and the hooks 35 form a holding structure for the inserted male plug. The hooks 35 replace the hooks formed by the traditional middle clip to simplify the structure and molding process.

The positive electrode connecting arm 33 is disposed at the front end of each positive electrode terminal 31 , and each negative electrode connecting arm 34 is disposed at the front end of each negative electrode terminal 32 .

The plane where the positive terminal 31 is located and the plane where the negative terminal 32 is located (both refer to planes parallel to the upper and lower surfaces of the rubber core 1) are staggered to form a structure that is staggered along the thickness direction of the rubber core 1. For example, the positive terminal 31 is closer to the upper surface of the rubber core 1, and the negative terminal 32 is closer to the lower surface of the rubber core 1; the positive connecting arm 33 and the negative connecting arm 34 are bent and extended toward each other to form a structure that is partially located in the same plane. Similarly, for example, the positive connecting arm 33 is bent toward the lower surface of the rubber core 1, and the negative connecting arm 34 is bent toward the upper surface of the rubber core 1. Since the thickness of the rubber core 1 is relatively small, the two bent parts will partially overlap in a staggered manner.

The length of the negative terminal 32 is greater than that of the positive terminal 31 , and the negative connecting arm 34 extends in front of the positive connecting arm 32 to avoid contact with each other.

The positive electrode connecting arm 33 and the positive electrode terminal 31 form an L-shaped structure, and the negative electrode connecting arm 34 and the negative electrode terminal 32 also form an L-shaped structure.

The hook 35 is bent outward from the outside of the head of the negative terminal 32 to form a roughly zigzag structure (or various available structural shapes such as L-shaped, straight-shaped, etc.). This hook with a bent structure can provide greater supporting force, thereby increasing the service life; the hook 35 and the negative terminal 32 are an integral structure and can be integrally formed using a bending process, which is simpler to manufacture.

On both sides of the front end of the rubber core 1, there are provided with outwardly convex buckle parts 11, and behind the buckle parts 11, there are provided with inwardly concave buckle grooves 12 for accommodating the buckle of the male head; two hooks 35 are respectively embedded in the two buckle parts 11, and the outer side surfaces of the hooks 35 are flush with the outer sides of the buckle parts 11 so that the hooks 35 form an exposed structure.

As another implementation, referring to FIG. 6 to FIG. 8 , the difference from the previous embodiment is that the positive terminal 31 and the negative terminal 32 are in the same plane, that is, parallel to the surface of the rubber core 1 , which is conducive to improving the convenience of stamping and injection molding production.

The present invention has been described in detail above. The above description is only a preferred embodiment of the present invention and should not limit the scope of implementation of the present invention. That is, all equivalent changes and modifications made within the scope of this application should still fall within the scope of the present invention.

Claims (9)

1. A connector with an improved terminal structure, comprising a rubber core, a shell and a terminal, wherein the terminal is fixed in the rubber core and the shell is fixed outside the rubber core; the terminal comprises at least two positive terminals and at least two negative terminals, characterized in that: the positive terminals are connected as an integral structure through a positive connecting arm, and the negative terminals are connected as an integral structure through a negative connecting arm, and when the rubber core is formed, the positive connecting arm and the negative connecting arm are respectively buried in the rubber core together with the positive terminal and the negative terminal; the front parts of the two outermost terminals on both sides are respectively provided with hooks protruding outward, and the hooks form a holding structure after the male head is inserted. 2. The connector with an improved terminal structure according to claim 1 is characterized in that: the negative terminal includes two, and the two negative terminals are respectively arranged at the outer positions of the left and right sides to be close to the two side edges of the rubber core; and outwardly protruding hooks are respectively arranged on the outer sides of the front of the two negative terminals. 3. The connector with improved terminal structure according to claim 1, characterized in that: the positive electrode connecting arm is arranged at the front end of each positive electrode terminal, and each negative electrode connecting arm is arranged at the front end of each negative electrode terminal. 4. A connector with an improved terminal structure according to claim 1 or 3, characterized in that: the plane where the positive terminal is located is staggered with the plane where the negative terminal is located to form a structure that is staggered along the thickness direction of the rubber core; the positive connecting arm and the negative connecting arm are bent and extended toward each other to form a structure that is partially located in the same plane. 5. The connector with improved terminal structure according to claim 1, characterized in that the length of the negative terminal is greater than that of the positive terminal, and the negative connecting arm extends in front of the positive connecting arm. 6. The connector with improved terminal structure according to claim 1, characterized in that: the positive electrode connecting arm and the positive electrode terminal form an L-shaped structure, and the negative electrode connecting arm and the negative electrode terminal also form an L-shaped structure. 7. The connector with improved terminal structure according to claim 2 is characterized in that: the hook is bent outward from the outer side of the head of the negative terminal to form a roughly zigzag or L-shaped structure, and the hook and the negative terminal are an integrated structure. 8. The connector with an improved terminal structure according to claim 2 is characterized in that: outwardly convex buckle parts are arranged on both sides of the front end of the rubber core, and inwardly concave buckle grooves are arranged behind the buckle parts; two hooks are respectively embedded in the two buckle parts, and the outer side surfaces of the hooks are flush with the outer sides of the buckle parts so that the hooks form an exposed structure. 9. The connector with improved terminal structure according to claim 1 or 3, characterized in that the positive terminal and the negative terminal are in the same plane.