New type cylindrical crown spring

Abstract

The invention provides a new type cylindrical crown spring. The invention is designed to mainly solve the problems in the prior art that a conventional spring is usually equipped with few contact points and requires large plugging force. According to the invention, a plurality of spring sheets are arranged at the upper end band and the lower end band of a crown spring's two ends as well as between the upper end band and the lower end band. Each spring sheet is provided with a contact part that can axially extend to the cylindrical crown spring. With the technical schemes of the invention, more contact points are available, which can effectively reduce the contact resistance. Further, as the inward protrusions of the spring sheets are divided into a plurality of layers, layers can be divided for the contact with the plugging needles in the process of plugging needle insertion, which effectively reduces the plugging force of insertion needles.

Description

technical field [0001] The invention relates to a component of an electrical connector for an electric vehicle, in particular to a cylindrical crown spring for large current transmission. Background technique [0002] At present, in the high-current transmission of new energy vehicles, in order to ensure a reliable electrical connection between the pin and the socket, an elastic reed is generally provided in the socket. Rectangular reed, the middle of the reed protrudes toward the axis of the circular reed, and the protrusion contacts the pin to conduct the circuit; in the transmission of new energy and large current, lower temperature rise and smaller However, the existing reeds generally have fewer contact points and higher insertion force, which cannot meet the increasingly higher requirements for contact resistance and insertion force in large current transmission. Contents of the invention [0003] The technical problem to be solved by the present invention is to pro...

AI Technical Summary

Problems solved by technology

[0002] At present, in the high-current transmission of new energy vehicles, in order to ensure a reliable electrical connection between the pin and the socket, an elastic reed is generally provided in the socket. Rectangular reed, the middle of the reed protrudes toward the axis of the circular reed, and the protrusion contacts the pin to conduct the circuit; in the transmission of new energy and large current, lower temperature rise and smaller However, the existing reeds generally have fewer contact points and greater insertion force, which cannot meet the increasingly higher requirements for contact resistance and insertion force in large current transmission.

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