Plug inner frame unit capable of resisting terminal clamping

Abstract

The utility model relates to a plug inner frame unit capable of resisting terminal clamping, which comprises an inner frame body provided with two terminals, the end part of each terminal for inserting a socket is defined as a front end, the forward end surface of the inner frame body forms an arc block, the arc block comprises a cambered surface, and the cambered surface is formed from the front to the back from one side close to the two terminals to the middle. An arc block is formed on the forward end face of the inner frame body, so that the two terminals are arranged at the front end opposite to the socket, and the terminals close to the rear end generate an arch-shaped structural form so as to have mechanical resistance with strength, and the phenomenon of mutual clamping of the two terminals (or called inner clamping) is reduced or avoided.

Description

Technical Field

[0001] This utility model relates to an electrical connection element, and more particularly to a plug inner frame unit. Background Technology

[0002] Currently, in the industrial manufacturing of plugs, one type of two-terminal (or two-prong) plug mainly uses an inner frame with two through holes through which terminals are inserted. Then, plastic is injection molded to form the plug on the outside of the inner frame. After the plug is formed, the front ends of the two terminals (defined as the end facing the socket) often experience mutual clamping (or "internal clamping") due to shrinkage and stress after the molten plastic solidifies. This means the front ends are in a non-standard parallel state and tend to approach each other. Since the socket holes are usually arranged with the two terminals in a parallel position, this clamping phenomenon does not meet safety regulations and can easily cause the two terminals to become obstructed when inserted into the socket holes, resulting in difficulty in insertion. Utility Model Content

[0003] In view of the problems of prior art, the purpose of this utility model is to provide a plug inner frame unit with improved structure to resist terminal clamping.

[0004] This utility model provides a plug inner frame unit that resists terminal clamping, characterized in that: it includes an inner frame body with two terminals, with the end of each terminal for inserting into a socket defined as the front end, and the front end face of the inner frame body forms an arc block, the arc block including an arc surface, the arc surface being formed from the side near the two terminals toward the middle from front to back.

[0005] The plug inner frame unit for resisting terminal clamping includes: a groove formed on each of the two front side edges of the inner frame, and a protruding reinforcing rib formed on the rear side of the inner frame.

[0006] This invention forms an arc block on the front end face of the inner frame, so that the two terminals at the front end of the relative socket and near the rear end of the terminal form an "arch-shaped" structural shape, which has strong mechanical resistance, reducing or avoiding the phenomenon of the two terminals clamping each other (or "internal clamping"). Attached Figure Description

[0007] Figure 1 This is a perspective view of the appearance of this utility model.

[0008] Figure 2 This is a perspective view of the present invention from another angle.

[0009] Figure 3 This is a front view of the present invention.

[0010] Figure 4This is a top view of the present invention.

[0011] Figure 5 This is a schematic diagram of the plug of this utility model.

[0012] Explanation of reference numerals in the attached drawings: 1-Inner frame; 11-Arc block; 111-Arc surface; 12-Groove; 13-Reinforcing rib; 2-Terminal; 3-Plug. Detailed Implementation

[0013] The following description, with the aid of accompanying drawings, illustrates the structure, features, and embodiments of this utility model, enabling a further understanding of the utility model.

[0014] Please see Figure 1 ,Cooperate Figure 2 As shown, this utility model provides a plug inner frame unit for resisting terminal clamping, including an inner frame body 1 with two terminals 2. The end of each terminal 2 that is inserted into the socket is defined as the front end. The front end face of the inner frame body 1 forms an arc block 11, which includes an arc surface 111. The arc surface 111 is formed from the side near the two terminals 2 towards the middle from front to back. By forming an arc block 11 on the front end face of the inner frame body 1, the two terminals 2, at the front end of the socket, near the rear end, form an "arched" structural shape, which provides strong mechanical resistance, reducing or avoiding the phenomenon of the two terminals 2 clamping each other (or "internal clamping").

[0015] Please cooperate. Figure 3 and Figure 4 As shown in the preferred embodiment of the present invention, each of the two side edges perpendicular to the front of the inner frame 1 forms a groove 12, and a protruding reinforcing rib 13 is formed on the rear side of the inner frame 1, which can further reinforce the resistance to shrinkage or deformation of the molten adhesive at the two terminals after solidification.

[0016] like Figure 5 As shown, a plug 3 is formed on the outside of the inner frame 1 by plastic injection molding.

[0017] In conclusion, this utility model is indeed industrially applicable, and it was not published or publicly used before the application, nor was it known to the public. Furthermore, it is not readily apparent and thus meets the application requirements for a utility model patent.

[0018] The above description is a preferred embodiment of this utility model in the industry. Any equivalent changes made within the scope of the claims of this utility model are within the protection scope of this utility model patent.

Claims

1. A plug inner frame unit with anti-terminal clamping, characterized in that: It includes an inner frame with two terminals, with the end of each terminal for inserting a socket defined as the front end. The front end face of the inner frame forms an arc block, which includes an arc surface that is formed from the side closest to the two terminals toward the middle from front to back.

2. The plug inner frame unit for resisting terminal clamping as described in claim 1, characterized in that: The inner frame has a groove on each of its two front side edges perpendicular to the front, and a protruding reinforcing rib on its rear side.

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