Multi-waterproof and intermodulation stable RF connectors for mating with ultra-flexible threaded cables

Abstract

Multi-waterproof intermodulation and stable radio frequency connectors with ultra-flexible threaded cables, including the rear end parts of the connector including shaft sleeves, sealing bushes, rear clamps and rear screw sleeves; the front outer wall of the rear screw sleeve is covered with The front end part of the connector, the inside of the rear screw sleeve is provided with a shaft sleeve, a sealing bush and a rear clamp in sequence in the axial direction; the rear end part of the rear clamp is extended and embedded in the outer sheath of the cable, the Between the rear screw sleeves, the rear screw sleeves are used to squeeze the rear clamp, and are embedded between the rear clamp and the rear screw sleeves, and between the rear screw sleeves and the outer sheath of the cable There is a seal, and the seal and the rear clamp are used to achieve multiple waterproofing; the components of the present invention are simple and can be quickly installed and disassembled; Advantages of waterproof sealing; there are multiple support points for the inner conductor, outer conductor and outer sheath of the threaded cable 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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