EP4054008A1

EP4054008A1 - Socket terminal having firm plugging force

Info

Publication number: EP4054008A1
Application number: EP21213307.8A
Authority: EP
Inventors: Junyu NIE; Yucong Chen; Xiqiang LIANG
Original assignee: Guangdong Futina Electrical Co Ltd; SG Armaturen AS
Current assignee: Guangdong Futina Electrical Co Ltd; SG Armaturen AS
Priority date: 2021-03-03
Filing date: 2021-12-09
Publication date: 2022-09-07
Also published as: WO2022183557A1; CN113036493A

Abstract

The present invention discloses a socket terminal having firm plugging force, allowing a plug terminal to be plugged in, including: a base part mounted and fixed in a socket panel; a connection part formed by extending upwards from the base part; and a plugging part formed by bending and extending from one side of the connection part, where the plugging part has two vertical parts and a horizontal part for connecting the two vertical parts; a front end face of the horizontal part protrudes forwards to form two limiting parts, and an upper end face of each of the vertical parts is horizontally bent first and extends downwards to form one contact part, so that the two contact parts clamp the plug terminal; and each of the contact parts extends downwards to form one stop part, and the two stop parts are located between the two limiting parts, so that the two limiting parts prevent the two stop parts from excessively moving.

Description

TECHNICAL FIELD

The present invention relates to the field of sockets, and in particular, to a socket terminal having firm plugging force.

BACKGROUND

In the present world, electric power is absolutely the unavoidable major power for human life and production, so that electric power transmission appears to be particularly important. Currently, people usually use the most common plug and socket connection to implement conduction of an entire circuit for electric power transmission, so that stable connection of a plug and a socket is always a timeless research topic for human beings.
As shown in FIG. 1 and FIG. 2, in the prior art, a plug terminal is usually plugged in a socket terminal for socket and plug connection. Generally, the socket terminal is provided with a butt joint part A for clamping the plug terminal. To stably clamp the plug terminal in the socket terminal, a circlip B is added to clamp the butt joint part of the socket terminal, so as to avoid excessive deformation of the butt joint part, thereby increasing clamping force for the butt joint part. However, the circlip B and the socket terminal are arranged in an assembled manner. Therefore, the circlip B has a risk of falling off the butt joint part. In addition, as the socket structure becomes more complex and smaller, it is more difficult to mount the circlip B. Therefore, production efficiency of the socket terminal is reduced, and production costs of the socket terminal are increased.
Therefore, it is quite necessary to develop a socket terminal that is low in costs and has firm plugging force.

SUMMARY

To overcome the defect in the prior art, an objective of the present invention is to provide a socket terminal having firm plugging force. Two limiting parts prevent two stop parts from excessively moving, thereby preventing two contact parts from excessive deformation and improving clamping force of the contact parts for clamping a plug terminal.
According to the following technical solutions, the present invention is implemented. A socket terminal having firm plugging force, allowing a plug terminal to be plugged in, including: a base part mounted and fixed in a socket panel; a connection part formed by extending upwards from the base part; and a plugging part formed by bending and extending from one side of the connection part, where the plugging part has two vertical parts and a horizontal part for connecting the two vertical parts; a front end face of the horizontal part protrudes forwards to form two limiting parts, and an upper end face of each of the vertical parts is horizontally bent first and extends downwards to form one contact part, so that the two contact parts clamp the plug terminal; and each of the contact parts extends downwards to form one stop part, and the two stop parts are located between the two limiting parts, so that the two limiting parts prevent the two stop parts from excessively moving.
Further, a width of the horizontal part is less than that of the vertical part, the stop part is located in front of the horizontal part, and a lower end face of the stop part is lower than the horizontal part.
Further, the limiting part is formed by horizontally bending and extending from a lower end of the vertical part.
Further, the contact part is arc-shaped, and the stop part is a vertical flat plate that is formed by extending downwards from the contact part.
Further, the base part and the plugging part are formed by extending in a same direction from two opposite side edges of the connection part.
Further, the base part has a first bent part that is connected to the connection part, a second bent part that is bent and extends in a direction approaching the plugging part from the first bent part, a third bent part that is bent and extends in a direction leaving the connection part from the second bent part, a fourth bent part that is bent and extends in a direction approaching the plugging part from the third bent part, and a fifth bent part that is bent and extends in a direction leaving the connection part from the fourth bent part.
Further, a first through groove runs through a plate face of the second bent part, and the first through groove extends to an intersection of the second bent part and the third bent part from an intersection of the first bent part and the second bent part.
Further, two parallel second through grooves run through a surface of the fourth bent part, and each of the second through grooves extends to an intersection of the fourth bent part and the fifth bent part from an intersection of the third bent part and the fourth bent part.
Further, a plate face of the fifth bent part protrudes outwards to form a boss, and an end face of the fifth bent part is bent in a direction leaving the fourth bent part to form two clamping parts.
Further, the boss is beveled, an inclined face of the boss inclines towards the fourth bent part, and the two clamping parts are corresponding to the two second through grooves respectively.
Compared with the prior art, the present invention can implement the beneficial effects as follows.
Each of the contact parts extends downwards to form one stop part, and the two stop parts are located between the two limiting parts, so that the two limiting parts prevent the two stop parts from excessively moving, thereby preventing the two contact parts from excessive deformation, improving clamping force of the contact parts for clamping the plug terminal, and allowing for the firm plugging force of the socket terminal. In addition, the limiting parts and the socket terminal are integrally molded, so that production and assembly procedures of products are reduced, and production costs of the products are reduced.

BRIEF DESCRIPTION OF DRAWINGS

FIG. 1 is a 3D view of the prior art;
FIG. 2 is a 3D view of the prior art before a circlip is assembled;
FIG. 3 is a 3D view of a socket terminal having firm plugging force according to the present invention;
FIG. 4 is a 3D view from another angle of a socket terminal having firm plugging force according to the present invention;
FIG. 5 is a front view of a socket terminal having firm plugging force according to the present invention; and
FIG. 6 is a schematic diagram of a socket terminal having firm plugging force according to the present invention after a plug terminal is plugged in.

In the figures: A. Butt joint part; B. Circlip; 100. Socket terminal having firm plugging force; 1. Base part; 11. First bent part; 12. Second bent part; 121. First through groove; 13. Third bent part; 14. Fourth bent part; 141. Second through groove; 15. Fifth bent part; 151. Boss; 152. Clamping part; 2. Connection part; 3. Plugging part; 31. Vertical part; 32. Horizontal part; 33. Limiting part; 34. Contact part; 35. Stop part; and 200. Plug terminal.

DESCRIPTION OF EMBODIMENTS

The following further describes the present invention with reference to the accompanying drawings and the specific implementations. It should be noted that the various embodiments or technical features described hereinafter may be combined randomly to form novel embodiments on the premise of no conflicts.
As shown in FIG. 3 and FIG. 6, the present invention discloses a socket terminal having firm plugging force 100, including: a connection part 2, and a plugging part 3 and a base part 1 that are formed by bending and extending from two opposite sides of the connection part 2, respectively. The plugging part 3 clamps a plug terminal 200.
The base part 1 is mounted and fixed in a socket panel (not shown in the figures, similarly hereinafter), so that the socket terminal having firm plugging force 100 is fixed in the socket panel.
As shown in FIG. 3 to FIG. 6, the connection part 2 is flat plate-shaped and is arranged vertically, the base part 1 is formed by bending and extending from one side of the connection part 2, the base part 1 has a first bent part 11 that is connected to the connection part 2, a second bent part 12 that is bent and extends in a direction approaching the plugging part 3 from the first bent part 11, a third bent part 13 that is bent and extends in a direction leaving the connection part 2 from the second bent part 12, a fourth bent part 14 that is bent and extends in a direction approaching the plugging part 3 from the third bent part 13, and a fifth bent part 15 that is bent and extends in a direction leaving the connection part 2 from the fourth bent part 14. With such arrangement, the first bent part 11, the second bent part 12, the third bent part 13, the fourth bent part 14, and the fifth bent part 15 can be more firmly embedded in the socket panel. Further, a first through groove 121 runs through a plate face of the second bent part 12, and the first through groove 121 extends to an intersection of the second bent part 12 and the third bent part 13 from an intersection of the first bent part 11 and the second bent part 12; and two parallel second through grooves 141 run through a surface of the fourth bent part 14, and each of the second through grooves 141 extends to an intersection of the fourth bent part 14 and the fifth bent part 15 from an intersection of the third bent part 13 and the fourth bent part 14. This facilitates cooling of the socket terminal having firm plugging force 100, increases elastic force of the first bent part 11, the second bent part 12, the third bent part 13, the fourth bent part 14, and the fifth bent part 15, and facilitates assembly and disassembly of the base part 1 on a plugging panel. Further, a plate face of the fifth bent part 15 protrudes outwards to form a boss 151, and an end face of the fifth bent part is bent in a direction leaving the fourth bent part 14 to form two clamping parts 152. This facilitates elastic cooperation of the base part 1 and the socket panel by using elastic force of the boss 151 and the clamping parts 152, reduces internal stress generated by the base part 1 under rigid extrusion during assembly, and increases durability of the socket terminal having firm plugging force 100. In this embodiment, the boss 151 is beveled, an inclined face of the boss inclines towards the fourth bent part 14, and the two clamping parts 152 are corresponding to the two second through grooves 141 respectively. This keeps structural stability of the entire socket terminal having firm plugging force 100. In other embodiments, the position of the clamping parts 152 and the shape of the boss 151 are not limited, as long as assembly fixing and holding force of the base part 1 and the socket panel can be enhanced.
The plugging part 3 is formed by bending and extending from the other side of the connection part 2, and the plugging part 3 and the base part 1 are located on a same side of a plate face of the connection part 2. Specifically, the plugging part 3 has two vertical parts 31 and a horizontal part 32 for connecting the two vertical parts 31; a front end face of the horizontal part 32 protrudes forwards to form two limiting parts 33, and an upper end face of each of the vertical parts 31 is horizontally bent first and extends downwards to form one contact part 34, so that the two contact parts 34 clamp the plug terminal 200; and each of the contact parts 34 extends downwards to form one stop part 35, and the two stop parts 35 are located between the two limiting parts 33. When the plug terminal 200 is plugged between the two contact parts 34, the two contact parts 34 are extruded to deform and move in directions leaving each other, so as to drive the two stop parts 35 to move in directions leaving each other respectively. In this case, the two limiting parts 33 prevent the two stop parts 35 from excessively moving, thereby preventing the two contact parts 34 from excessive deformation and improving clamping force of the contact parts 34 for clamping the plug terminal 200.
Further, the limiting part 33 is formed by horizontally bending and extending from a lower end of the vertical part 31, and it is ensured that the limiting parts and the socket terminal having firm plugging force 100 are integrally molded, so that production and assembly procedures of products are reduced, and production costs of the products are reduced. The contact part 34 is arc-shaped, and the stop part 35 is a vertical flat plate that is formed by extending downwards from the contact part 34. Therefore, a space between the two contact parts 34 is enlarged, resistance to the plug terminal 200 during plugging is reduced, a contact area between the stop part 35 and the limiting part 33 during action is increased, and a risk that the limiting part 33 damages the stop part 35 is reduced. In addition, in this embodiment, a width of the horizontal part 32 is less than that of the vertical part 31, the stop part 35 is located in front of the horizontal part 32, and a lower end face of the stop part 35 is lower than the horizontal part 32. This ensures structural stability of the entire plugging part 3. In other embodiments, the size of the horizontal part 32, the size of the vertical part 31, and the positional relationship between the horizontal part 32 and the stop part 35 are not limited, as long as actual requirements are met.
The above implementations are merely implementations of the present invention, and thus may not limit the protection scope of the present invention. Any insubstantial variations and replacements made by those skilled in the art based on the present invention all fall within the protection scope of the present invention.

Claims

A socket terminal having firm plugging force, allowing a plug terminal to be plugged in, characterized in comprising:
a base part mounted and fixed in a socket panel;

a connection part formed by extending upwards from the base part; and

a plugging part formed by bending and extending from one side of the connection part,

wherein the plugging part has two vertical parts and a horizontal part for connecting the two vertical parts; a front end face of the horizontal part protrudes forwards to form two limiting parts, and an upper end face of each of the vertical parts is horizontally bent first and extends downwards to form one contact part, so that the two contact parts clamp the plug terminal; and each of the contact parts extends downwards to form one stop part, and the two stop parts are located between the two limiting parts, so that the two limiting parts prevent the two stop parts from excessively moving.
The socket terminal having firm plugging force according to claim 1, characterized in that a width of the horizontal part is less than that of the vertical part, the stop part is located in front of the horizontal part, and a lower end face of the stop part is lower than the horizontal part.
The socket terminal having firm plugging force according to claim 1, characterized in that the limiting part is formed by horizontally bending and extending from a lower end of the vertical part.
The socket terminal having firm plugging force according to claim 1, characterized in that the contact part is arc-shaped, and the stop part is a vertical flat plate that is formed by extending downwards from the contact part.
The socket terminal having firm plugging force according to claim 1, characterized in that the base part and the plugging part are formed by extending in a same direction from two opposite side edges of the connection part.
The socket terminal having firm plugging force according to claim 5, characterized in that the base part has a first bent part that is connected to the connection part, a second bent part that is bent and extends in a direction approaching the plugging part from the first bent part, a third bent part that is bent and extends in a direction leaving the connection part from the second bent part, a fourth bent part that is bent and extends in a direction approaching the plugging part from the third bent part, and a fifth bent part that is bent and extends in a direction leaving the connection part from the fourth bent part.
The socket terminal having firm plugging force according to claim 6, characterized in that a first through groove runs through a plate face of the second bent part, and the first through groove extends to an intersection of the second bent part and the third bent part from an intersection of the first bent part and the second bent part.
The socket terminal having firm plugging force according to claim 6, characterized in that two parallel second through grooves run through a surface of the fourth bent part, and each of the second through grooves extends to an intersection of the fourth bent part and the fifth bent part from an intersection of the third bent part and the fourth bent part.
The socket terminal having firm plugging force according to claim 8, characterized in that a plate face of the fifth bent part protrudes outwards to form a boss, and an end face of the fifth bent part is bent in a direction leaving the fourth bent part to form two clamping parts.
The socket terminal having firm plugging force according to claim 9, characterized in that the boss is beveled, an inclined face of the boss inclines towards the fourth bent part, and the two clamping parts are corresponding to the two second through grooves respectively.