coaxial connector

Abstract

The invention discloses a coaxial connector comprising a housing, an insulating base, a central terminal, a first connection terminal, and a second connection terminal. The first connection terminal comprises a first welding arm which is extended from the outside of the housing to the second end of the insulating base, and a fixation arm which is connected with the first welding arm in an integrated manner and extended to the channel of the insulating base. The second connection terminal comprises a second welding arm which is extended from the outside of the housing to the second end of the insulating base, and an elastic arm which is connected with the second welding arm in an integrated manner and extended to the channel. When a mating connector is not combined onto a combination portion of the housing, the switching end of the central terminal is away from the elastic arm to make the elastic arm and the fixation arm be in electrical connection; and when the mating connector is combined onto the combination portion, the switching end of the central terminal is electrically connected with the elastic arm and press the elastic arm to make the elastic arm be subjected to elastic deformation so as to make the elastic arm is away from the electrical connection with the fixation arm. The coaxial connector can be used to reduce the times of the electrical connection of conductive components through mechanism contact so as to reduce the contact resistance, and improve electrical signal transmission performance.

Description

technical field [0001] The present invention relates to a coaxial connector, in particular, to a coaxial connector capable of controlling switching of signal transmission paths. Background technique [0002] During the transmission of electrical signals, a coaxial connector is usually used to achieve electrical connection between two electronic devices. For example, in a wireless communication system, a coaxial connector is usually used to realize the transmission of electrical signals between a wireless transceiver such as an antenna and an electronic device such as a television, a vehicle positioning device, and a vehicle navigation device. Realize the shielding of electrical signals, ensure that the signal distortion is small, and can make convenient connections. [0003] Figure 15 A cross-sectional view of a prior art coaxial connector 300 and a mating connector 400 is shown. The coaxial connector 300 includes a shell 301 , a center terminal 302 , a metal inner sleeve...

AI Technical Summary

Problems solved by technology

[0005] In the above-mentioned coaxial connector 300, the electrical connection between the switch terminal 307 and the center terminal 302 needs to be realized through two mechanical contacts between the switch terminal 307 and the metal inner sleeve 303 and between the metal inner sleeve 303 and the center terminal 302. , too much mechanical contact will affect the transmission of electrical signals from the switch terminal 307 to the center terminal 302

Specifically, mechanical contact will result in a contact voltage, and since the center terminal 302 and the metal inner sleeve 303 have arc-shaped contact surfaces, and the metal inner sleeve is inclined during contact, the switch terminal 307 and the metal inner sleeve will The contact area between 303 and between the metal inner sleeve 303 and the central terminal 302 is small, and the resistance is large, which affects the transmission performance of electrical signals, especially high-frequency electrical signals

In addition, in the state where the coaxial connector 300 is not combined with the mating connector 400, the size of the conductive path formed by the switch terminal 307, the metal inner sleeve 303 and the center terminal 302 is relatively long. For the signal transmission system, this conductive path will Produces an antenna-like function that further affects the performance of the entire signal transmission system

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