Seal radiofrequency coaxial connector with self locking mechanism

Abstract

Six slots along axial line are made on head of plug body. The head portion is an arc shaped male tab. Claws are located outside the body case, and outer sheath is located outside the claws. Nut is screwed on postmedian portion of the body case. Three claws with barbs are placed between inner male tab of the body case and the nut in order to restrict axial drunkenness of claws. Radial clearance is kept between the outer sheath and the claws. There are five straight holes with different diameters and two cone shaped bores inside head of socket shell. The holes are matched to diameters of plug. The cone-shaped bores are guide holes. Outline of insulator is in step shape, where small end is extended out of the straight hole, and large end is stopped by the inner hole of shell. Full escaping lock connection between socket and plug is adopted in the invention so as to guarantee quick plugging in or out, and provide firm bond between socket and plug under execrable mechanical condition.

Description

technical field [0001] The invention relates to a sealed radio frequency coaxial connector with a self-locking mechanism. Background technique [0002] In the existing similar ultra-small radio frequency coaxial connectors such as MCX type, the locking form of the plug and the socket is as follows: the head of the plug shell is an elastic structure, and there is a ring-shaped boss at the front end, and there is a ring-shaped boss in the socket. Matching annular groove, when the plug is inserted into the socket, the annular boss at the front end of the plug will be stuck in the annular groove in the socket, so that a certain locking force will be generated between the plug and the socket, when it needs to be separated When connecting the plug and socket, apply a certain axial force to the plug or socket, and the two will be disengaged to achieve the purpose of separation. It can be seen from this that although its external dimensions can meet the requirements, its locking st...

AI Technical Summary

Problems solved by technology

It can be seen from this that although its external dimensions can meet the requirements, its locking structure is a semi-escapement form, that is to say, if a certain axial separation force is applied to the mated connector pair, the plug and socket will In this way, in some occasions with harsh conditions of use, the plug and socket in the connector pair may be separated automatically during normal operation. At this time, the transmission line will be disconnected and cannot work normally as required. Signal transmission, in addition, the sealing function cannot be achieved after the plug and socket are mated

[0003] Another connector is the R series miniature RF coaxial connector produced by LEMO. Although its microwave performance can meet the requirements, it is also a full escapement structure. If you do not operate a special mechanism, the plug and socket in the connector center It will not be separated, and it can work in harsh mechanical environments without automatic disengagement, which can fully meet the requirements. However, because this type of product is not sealed at the mating surface and the cable connection The mechanism does not have a sealing function. When the mated connector pair is working underwater, water will enter the inside of the connector, causing the connection to fail, so it is also unusable

[0004] In addition, the QMA type connector that is more popular in the world now, although its microwave performance can meet the requirements, its external dimension is too large, and after the QMA socket is installed on the panel, it will be much higher than the panel, so it cannot be used. Meet the requirement that the socket cannot be much higher than the panel after it is installed

In addition, like the R series miniature RF coaxial connectors produced by LEMO, since this type of product has no sealing mechanism on the mating surface and the cable connection part, it does not have a sealing function. When working, water will enter the inside of the connector, causing the connection to fail, so it is also unusable

[0005] To sum up, it is necessary not only to meet certain microwave performance, but also to meet certain external dimensions, operating functions (full escapement structure) and installation requirements (the socket is installed on the panel and cannot be much higher than the panel). Some MCX, LEMO, QMA or any other connectors cannot meet all the above requirements at the same time

Images