Electrical connection device

Abstract

The invention provides an electrical connection device. The electrical connection device is provided with a jack main body and a spring piece, wherein the spring piece is arranged in the jack main body, the jack main body is provided with an annular wall and an accommodating cavity, the accommodating cavity is encircled by the annular wall, the spring piece is arranged in the accommodating cavity and is provided with a first coil and a second coil, and the first coil and the second coil are in contact with the annular wall. Compared with the prior art, the electrical connection device has the advantages that the spring piece is arranged in the jack main body, so that the spring piece is sleeved on the jack main body and is in contact with a pin main body in a clamping way, the number of contacts is increased by the spring piece, the connection stability and reliability among the jack main body, the pin main body and the spring piece is guaranteed, and complete and effective contact still can be maintained when the electrical connection device is in an extreme shaking 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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