Multi-waterproof intermodulation stable radio frequency connector matched with super-flexible threaded cable

Abstract

The invention discloses a multi-waterproof intermodulation stable radio frequency connector matched with a super-flexible threaded cable. The connector rear end part comprises a shaft sleeve, a sealing bushing, a rear wire clamp and a rear threaded sleeve, the outer wall of the front end of the rear threaded sleeve is sleeved with a connector front end part, and a shaft sleeve, a sealing bushing and a rear wire clamp are sequentially arranged in the rear threaded sleeve in the axial direction. The rear end part of the rear wire clamp extends and is embedded between the cable outer sheath and the rear threaded sleeve, the rear threaded sleeve is used for extruding the rear wire clamp, sealing pieces are embedded between the rear wire clamp and the rear threaded sleeve and between the rear threaded sleeve and the cable outer sheath, and the sealing pieces and the rear wire clamp are used for realizing multiple waterproofness; the parts are simple and can be quickly assembled and disassembled; the whole front end, the space between the shells and the end connected with the cable can be waterproof, and the advantage of multiple waterproof sealing is achieved; and a plurality of supporting points are provided for the inner conductor, the outer conductor and the outer sheath of the threaded cable so as to meet the performance of intermodulation stability.

Description

technical field [0001] The invention belongs to the technical field of radio frequency connectors, in particular to a radio frequency connector with multiple waterproof and stable intermodulation for matching super-flexible threaded cables. Background technique [0002] With the rapid development of the mobile communication business, the use scenarios are different, especially in the wild, the weather conditions are complex, and the waterproof of the RF coaxial connector of the cable assembly is very important; for this reason, low intermodulation, high power, low loss and high reliability There is a great demand for permanent antenna feeder cables, especially in places where the relative density of people is small, and the high-power base stations with wide coverage, the use of antenna feeder components is very large. At present, the connection of the antenna feeder system is operated in the field, the environment is harsh, and the operation is difficult; the existing conne...

AI Technical Summary

Problems solved by technology

At present, the connection of the antenna feeder system is operated in the field, the environment is harsh, and the operation is difficult; the existing connectors that are equipped with ultra-flexible cables usually have a two-point support structure. After the cable is installed, the intermodulation is relatively stable. It is relatively poor; moreover, the existing products of this type are divided into three parts: the front shell part, the rear shell, and the sealing ring; The rear housing is screwed onto the cable and finally the front housing part is screwed onto the rear housing

[0003] The above-mentioned assembly process is prone to assembly risks. If the sealing ring is not screwed in place, it will easily cause water leakage, which will also have a certain impact on the stability of the cable. At present, there are still connectors that use three parts for the inner conductor of the cable, the outer conductor and the outer sheath of the cable. The structure of point support is used to improve the stability of intermodulation. The inner thread of the support member cooperates with the helix of the outer conductor of the cable to form a fixed support for the outer conductor of the cable. This structural design does not take into account the shape of the thread after the actual processing of the cable. After the completion, sometimes there will be one or more transitional platforms that are squeezed and flattened at the crest. Since the inner thread of the support and the spiral of the outer conductor of the cable are rigidly squeezed, the support for the outer conductor of the cable is not stable in this case. , there will be some shaking

Secondly, the surface of the inner hole of the C-shaped collar is designed with protrusions and grooves to support and fix the outer sheath of the cable. Once the torque is tightened, the inner surface of the C-shaped collar is designed with protrusions and grooves. The cable forms a rigid extrusion, the protrusions and grooves will sink into the cable, and the removal of the cable will be relatively difficult

At the same time, this structure only seals the cable outer sheath to the waterproof of the cable end, the seal is single, and it cannot achieve a complete waterproof seal.

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