Power socket and metal terminal thereof and method for making the metal terminal

Abstract

The invention provides a power socket, which comprises at least two metal terminals and an insulating base, wherein the metal terminals are integrally formed by pressing and bending solid cylindrical metal wires; one end of each metal terminal is provided with a solid cylindrical contact part, and the other end of each metal terminal is a flat connecting part; the insulating base is subjected to injection molding of plastics and used for coating and fixing the at least two metal terminals; and a spliced eye is formed on one surface of the base and used for placing and positioning various contact parts, and the other surface of the base is used for exposing the connecting parts. The invention also provides the metal terminals for the power socket, which are integrally formed by pressing and bending the solid cylindrical metal wires, wherein one end of each metal terminal is provided with the solid cylindrical contact part and the other end of each metal terminal is provided with the connecting part. The invention also provides a method for manufacturing the metal terminals. Because the connecting parts and the contact parts of the metal terminals are integrally formed, the phenomenon of unsafety due to loosening and damage of joints of the two parts is avoided.

Description

technical field [0001] The invention relates to a power distribution and control device and a manufacturing method thereof, in particular to a power socket, a metal terminal thereof and a method for manufacturing the metal terminal. Background technique [0002] Power sockets are widely used in electrical products, such as stereos, televisions, computers, etc., and the power plugs are inserted into the power sockets to connect to the power supply, so that the products can obtain power. The indispensable components inside the power socket are at least two metal terminals. [0003] In the prior art, traditional metal terminals can be divided into two types: hollow and solid. The hollow metal terminal is a piece of predetermined shape punched out of a metal plate, and then one end of it is crimped into a cylindrical contact portion, while the other end is extended into a flat connection portion; its advantage is that the contact portion is compatible with the connection The p...

AI Technical Summary

Problems solved by technology

The hollow metal terminal is a piece of predetermined shape punched out of a metal plate, and then one end of it is crimped into a cylindrical contact portion, while the other end is extended into a flat connection portion; its advantage is that the contact portion is compatible with the connection The part is integrally formed instead of riveted, but it also has obvious disadvantages. Because the contact part is formed by bending, there will be defects of insufficient strength and easy deformation

In order to avoid the above-mentioned shortcomings, a metal terminal has appeared in the prior art, which improves the above-mentioned terminal, and an insulating cylinder is inserted inside the contact part to increase the strength and structural stress of the terminal; but the current plate price The forming of this kind of metal terminal will cause waste of materials, so it will increase the production cost. More importantly, the above two types of terminals are obviously insufficient in withstand voltage and current due to the limitation of plate thickness. Unable to meet the requirements of product security inspection

[0004] A kind of solid metal terminal and the power socket using it have also appeared in the prior art, such as figure 1 As shown, the power socket includes a seat body 10, and the seat body 10 includes a terminal 20 inside, and the terminal 20 includes a cylindrical contact portion 21 and a connecting portion 22, and the contact portion 21 and the connecting portion 22 are riveted together , the riveting part is buried in the seat body, and this connection method needs to consider the strength of the riveting; in addition, turning and riveting processes are required in the manufacturing process, resulting in higher manufacturing costs, for example, to prevent the solid contact part 21 from coming out , there is a retaining ring 23 with a larger outer diameter in its radial direction, and the outer diameter of the retaining ring 23 is the original outer diameter of a solid metal cylinder, and the solid metal cylinder is turned into a contact portion 21 and a retaining ring 23 , the material removed accounts for about 40% of the whole, making it difficult to reduce the cost

More importantly, if the riveting of the contact part 21 and the connecting part 22 is not strong enough or is damaged by external force, it is easy to loosen the riveting part, resulting in high temperature, poor contact, sparks or falling off, affecting the safety of the product.

Images