Electrical connection device

Abstract

The present invention provides an electrical connection device, which is provided with a socket body and a spring member located in the socket body, the socket body is provided with a ring wall and an accommodating cavity surrounded by the ring wall, the The spring element is located in the accommodating cavity, and is provided with a first coil and a second coil contacting the ring wall. Compared with the prior art, the electrical connection device of the present invention arranges a spring member in the main body of the socket so that the spring member is sleeved on the main body of the pin and clamped and contacts with the main body of the pin, and the number of contact points is increased by using the spring member. The stability and reliability of the connection between the socket main body, the pin main body and the spring member are guaranteed, so that they can still maintain full and effective contact in an extreme vibration environment.

Description

technical field [0001] The invention relates to the field of electrical connection, in particular to an improved electrical connection device. Background technique [0002] In some high-current application scenarios, in order to ensure the stability and reliability of current transmission, electrical connection devices such as pins and sockets are usually used. Electrical equipment provides electricity. The more common ones are the charging piles of electric vehicles. The charging piles will provide a large current when they are working, and they have high requirements for the stability and reliability of current transmission. Currently, the existing charging piles generally use such as figure 1 and figure 2 As shown in this type of socket piece 1 and pin piece 2, the conduction between the two is realized by inserting the pin piece 2 into the socket piece 1, and a floating clamping shrapnel is set in the socket of the socket piece 1 3. To achieve electrical connection b...

AI Technical Summary

Problems solved by technology

The more common ones are the charging piles of electric vehicles. The charging piles will provide a large current when they are working, and they have high requirements for the stability and reliability of current transmission. Currently, the existing charging piles generally use such as figure 1 and figure 2 As shown in this type of socket piece 1 and pin piece 2, the conduction between the two is realized by inserting the pin piece 2 into the socket piece 1, and a floating clamping shrapnel is set in the socket of the socket piece 1 3. To achieve electrical connection by clamping the pin part 2, but the contact points between the clamping spring 3 and the surface of the pin part 2 are relatively small, and it only covers a part of the surface of the pin part. This structure will It is easy to cause insufficient contact, which affects the maximum current value passed, especially when used in some harsh environments, such as strong vibration, thin air, or extreme heat and extreme cold conversion, it is easy to appear flashing phenomenon and cause connection failure

In addition, the existing processing technology of this kind of clamping shrapnel is all made of thin copper plate stamping, bending, welding, and shaping, which means that its material thickness is very limited, which also determines that it cannot pass through excessively large current, which limits its application in some high current scenarios

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