CN201975528U

CN201975528U - L29-type jack contact piece radio frequency connector adaptive to 1-5/8'' cable

Info

Publication number: CN201975528U
Application number: CN 201020642650
Authority: CN
Inventors: 武向文; 李红兵; 赵鹏森
Original assignee: XIAN FUSHIDA SCIENCE AND TECHNOLOGY Co Ltd
Current assignee: XIAN FUSHIDA SCIENCE AND TECHNOLOGY Co Ltd
Priority date: 2010-12-06
Filing date: 2010-12-06
Publication date: 2011-09-14
Anticipated expiration: 2020-12-06

Abstract

The utility model relates to an L29-type jack contact piece radio frequency connector adaptive to a 1-5/8'' cable, which can realize quick installation, and can be simultaneously adaptive to 1-5/8'' leakage cables of various manufacturers. The connector comprises an outer conductor I which is internally provided with an inner conductor, an insulated supporting piece is arranged under the inner conductor, a spring ring is arranged at one side of the insulated supporting piece, and every two independent flaps of the spring ring are combined into a crenel shape.

Description

Connect 1-5/8 " the L29 type jack contact radio frequency connector of cable

Technical field

The utility model relates to a kind of radio frequency (RF) coaxial connector, especially relates to a kind of 1-5/8 of connecting " the L29 type jack contact radio frequency (RF) coaxial connector of coaxial leaky cable.

Background technology

In the background technology, along with the fast development of mobile communication cause and mode of transportation, demand big to power capacity, low-loss leaky cable also increases.Real mobile unfettered in order to realize, how to make the RF signal that blindages such as tunnel, subway and building are realized all standing, become the difficult problem that each communications service provider must face.Radial pattern leakage cable system is little because of its signal fluctuation scope, advantages such as penetration loss the best, minimum shadow fading and broadband become preferred option in the object of high-speed cruising.1-5/8 " leakage coaxial cable abbreviates leaky cable or leaky cable (hereinafter to be referred as leaky cable) usually again as; its structure and common coaxial cable basically identical; by inner wire, dielectric with have periodically outer conductor three parts of slotted eye and forms, when electromagnetic wave vertically transmits in leaky cable by slotted eye to extraneous radiated electromagnetic wave; Extraneous electromagnetic field also can be sensed leaky cable inside and be sent to receiving terminal by slotted eye.At present because the 1-5/8 that different cable manufacturers is produced " leaky cable size difference to some extent all, it is corresponding with it that the cable that different basically manufacturers produce all needs a kind of connector.Also do not exist in the market and can connect the 1-5/8 of many producers simultaneously " connector of leaky cable.L29, N Connector connect superior characteristics such as reliable (screw-type connections), stable, power capacity is big, high pressure resistant, low-loss firm in structure and become the sky of high power capacity, low-loss, low intermodulation, the cable development of bursting, the first-selected interface during exploitation with it.The existing 1-5/8 that connects " leak the L29 type jack contact radio frequency (RF) coaxial connector of cable; because its internal structure complexity; part is various; processing, the assembly difficulty of part are big; quality stability is relatively poor during production in enormous quantities; so not only make the production cost of connector increase, more be not suitable for installing and replacing.

In sum, connecting 1-5/8 at present " the L29 type jack contact radio frequency (RF) coaxial connector of leaky cable exists significantly not enough.

The utility model content

The utility model is in order to solve the weak point in the above-mentioned background technology, a kind of 1-5/8 of connecting is provided " the L29 type jack contact radio frequency (RF) coaxial connector of coaxial leaky cable; it can realize Fast Installation, and can connect the 1-5/8 of many producers simultaneously " leaky cable.

For achieving the above object, the technical solution adopted in the utility model is:

A kind of 1-5/8 that connects " the L29 type jack contact radio frequency (RF) coaxial connector of coaxial leaky cable; comprise outer conductor one; be provided with inner wire in the outer conductor one; it is characterized in that: the inner wire below is provided with insulated support; insulated support one side is provided with spring coil, and per two independent lobes of spring coil are combined into one " crenel type ".

Compared with prior art, the advantage and the effect that the utlity model has are as follows:

1, is convenient to install

Carry out in the open air owing to installation, the debugging of leaky cable are many, install, at first just should reduce the part of connector as far as possible, because part installs and change and bring very big inconvenience can for too much connector and cable assembly normally for the ease of the field; Secondly to use simple and reliable connected mode exactly, all can not adopt as modes such as welding.And the utility model adopts the attaching mode, as long as pushing to put in place gets final product installation, therefore is specially adapted to open-air fitting operation;

2, cable connects simple and reliable

It is very reliable that this connector connects behind the cable connection of whole cable assembly, and electric property is extremely good, and can reach 10 years the open-air useful life of cable assembly, makes the user not have any trouble and worry.The 1-5/8 of different cable manufacturer production " the leaky cable size difference mainly concentrates on the diameter of dielectric, outer conductor, crust; because attaching structure of the present utility model, make 1-5/8 to different cable manufacturer production " leaky cable has extremely strong compatibility.The contact of the utility model outer conductor is adopted with " crenel type " structure in the city wall building with spring coil.On the basis that the stable whole confining force is provided, each " crenel " is again separate.Well solved cable when deflection, whole circle normal pressure keeps impartial.

Description of drawings

Fig. 1 is a structural representation of the present utility model;

Fig. 2 is the structural representation of insulated support;

Fig. 3 is that the A of Fig. 2 is to view;

Fig. 4 is the structural representation of spring coil;

Fig. 5 is the expanded view of spring coil;

Fig. 6 connects structural representation behind the cable for the utility model

Among the figure, 1-inner wire, 2-insulated support, 3-outer conductor one, 4-outer conductor two, 5-spring leaf, 6-spring coil, 7-sealing ring, 8-cable outer conductor, 9-cable insulation, 10-connector body, 11-cable.

Embodiment

Referring to Fig. 1 and Fig. 6, the utility model comprises outer conductor 1, be provided with inner wire 1 in the outer conductor 1, inner wire 1 below is provided with insulated support 2, insulated support 2 one sides are provided with spring coil 6, per two independent lobes of spring coil 6 are combined into one " crenel type ", and insulated support 2 adopts the TPX polymer material.Referring to Fig. 4 and Fig. 5, existing " long ladder type " spring coil is because last band and be with one down, and when the stressed or part lobe of single-lobe was stressed, its chord length was tied up, and can't extend.Cause sagitta to form destructive nonlinear deformation when the compressing distortion, normal pressure is very big.Make cable local deformation serious, impedance mismatching and influence electrical property.Be with one on existing " comb type " spring coil, following band all disconnects, each spring lobe independent support.Though solved the stressed problem that freely extends, each spring lobe sectional area is very little only to be rectangle about 1.4*0.2.Antitorque commentaries on classics, shear strength are all very low.In punch process, plating, transportation, all can cause very big puzzlement, must carry out special protection, greatly reduce production capacity like this.Also can take place in the process that same problem is debugged at the scene.1-5/8 reveals coaxial cable outer conductor and is generally " V " type pleated structure, and " V " type trough can be broken the very little single spring lobe of self confining force or reverse in the process of extracting for 2 times.The utility model adopts per two independent lobes to be combined into one " crenel type " not changing two contact points simultaneously, can well freely extend again.On intensity and normal pressure are uniform, all be better than " long ladder type " and " comb type " structure.Referring to Fig. 2 and Fig. 3, conventional connector generally is to adopt polytetrafluoroethylene to make (PTFE) to support for insulation, but because the some shortcomings of polytetrafluoroethylene itself, such as lower, the inapplicable mold pressing production of mechanical strength, resistance to elevated temperatures difference etc.The utility model then adopts various aspects of performance all to be better than the new insulation material of polytetrafluoroethylene---and TPX is used as the main support part of inner wire.TPX is a high grade of transparency crystallinity condensate, and density is 0.82, at high temperature has quite high elongation at break and impact strength and superior creep resistant, and fusing point is about 240 degree, and deflection at high temperature is little, very suitable mould molding processing; TPX has excellent electric insulation character, and its dielectric strength reaches 65KV/mm, is excellent than PTFE and propylene, and dielectric constant is about 2.12, and dielectric absorption is very low; The water absorption of TPX is very low, only is 0.01, therefore water and steam is had high tolerance.Adopt the main support part of TPX as inner wire, not only make the inner wire of connector obtain firm support, and make connector inside have good sealing property, most importantly the electric property that TPX is stable makes connector obtain more superior and stable electric property; Thereby TPX can mold pressing process the cost that also reduces connector simultaneously.

Claims

1. one kind connects 1-5/8 " the L29 type jack contact radio frequency connector of cable; comprise outer conductor one (3); be provided with inner wire (1) in the outer conductor one (3); it is characterized in that: inner wire (1) below is provided with insulated support (2); insulated support (2) one sides are provided with spring coil (6), and per two independent lobes of spring coil (6) are combined into one " crenel type ".