CN201975531U

CN201975531U - N-type jack contact element radio-frequency connector adapting to 7/8'' leakage cable

Info

Publication number: CN201975531U
Application number: CN2010206436539U
Authority: CN
Inventors: 武向文; 赵锐
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 N-type jack contact element radio-frequency connector adapting to a 7/8'' leakage cable, which can not only realize outdoor quick installation, but also adapt to 7/8'' coaxial leakage cables of smooth pipes from various manufacturers. The connector has simple structure, simplicity and reliability in cable connection, favorable leak tightness, and superior and more stable electrical performance. The connector comprises an outer conductor I and an outer conductor II, and a spring ring contact element is arranged in the outer conductor II.

Description

Connect 7/8 " the N type jack contact radio frequency connector of leaky cable

One, technical field:

The utility model relates to a kind of radio frequency connector, especially relates to a kind ofly connecting 7/8 " the N type jack contact radio frequency connector of leaky cable.

Two, background technology:

In the background technology, the continuous development of communications industry at present more and more requires can connect whenever and wherever possible between base station and the mobile radio station, even requirement also is like this in the tunnel.Yet in the tunnel, the electromagnetic wave propagation poor effect of tracking exchage.Utilize antenna transmission also very difficult usually in the tunnel, so also arise at the historic moment about the research of coaxial leaky cable.The development that the underground transmission of radio has purposes extremely widely to move emission system along with novel radio, novel leaker should be able to be transmitted signal in the 900MHz wave band with lower decay, and super current wireless mobile communication is towards following trend development: tend to higher use frequency range: the use frequency range extends to 450-900 MHz even 1800-2200 MHz from 50-150 MHz.The demand of the antenna feeder cable of, low-loss big to power capacity, low intermodulation also increases day by day.Therefore as first-selected size 7/8 " coaxial leaky cable use amount in signal transmission system grows with each passing day.Installation of antenna-feedback system simultaneously and debugging are all carried out in the open air,, therefore, adapt to existing various radio communication system, the application scenario comprises the limited subway of radio transmission, railway tunnel and vcehicular tunnel etc.

Present 7/8 " leakage coaxial cable (Leaky Coaxial Cable) abbreviates coaxial leaky cable or 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 form.Electromagnetic wave in coaxial leaky cable vertically in the transmission by slotted eye to extraneous radiated electromagnetic wave; Extraneous electromagnetic field also can be sensed coaxial leaky cable inside and be sent to receiving terminal by slotted eye.N Connector becomes the sky of high power capacity, low-loss, low intermodulation, the cable development of bursting, the first-selected interface during exploitation with superior characteristics such as its connection reliable, firm in structure stable, power capacity is big, high pressure resistant, low-loss.Present 7/8 " outer conductor of coaxial leaky cable is shaped as plain tube; and since different cable manufacturers produce 7/8 " coaxial leaky cable size difference to some extent all, therefore, though all be 7/8 " coaxial leaky cable; because the difference of cable dimension and connector construction restriction, it is corresponding with it that the cable that different basically manufacturers produce all needs a kind of connector.Also do not have the plain tube 7/8 that can connect multiple size simultaneously in the market " the connector of coaxial leaky cable.Once more, existing connect 7/8 " the N type jack contact radio frequency (RF) coaxial connector of coaxial leaky 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 the installation and the replacing in field.

In sum, connecting 7/8 at present " the N type jack contact radio frequency connector of coaxial leaky cable exists significantly not enough.

Three, utility model content:

The utility model is in order to solve the weak point in the above-mentioned background technology, provide a kind of and connect 7/8 " the N type jack contact radio frequency connector of leaky cable; it can realize open-air Fast Installation; also can connect the plain tube 7/8 of multiple manufacturer simultaneously " coaxial leaky cable, simple for structure, cable connects simple and reliable, and has good sealing property, and more superior and stable electric property.

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

A kind ofly connect 7/8 " the N type jack contact radio frequency connector of leaky cable, comprise outer conductor one and outer conductor two, it is characterized in that: be provided with contact in the outer conductor two.

Above-mentioned contact is a spring coil.

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

1, is convenient to open-air the installation

Because the installation of antenna-feedback system, debugging are all carried out in the open air, the application scenario comprises the limited subway of radio transmission, railway tunnel and vcehicular tunnel etc., for the ease of installing, at first just should reduce the part of connector as far as possible, connector and cable assembly are normal to be installed and changes and bring very big inconvenience because part can be given too much; Secondly to use simple and reliable connected mode exactly, all can not adopt as modes such as welding.This patent product adopts two body structures of being made up of a part, connector is installed chaotic degree because of part causes too much reduce to minimum; And patent employing attaching mode of the present invention, simple to operate, quick, therefore be specially adapted to field and fitting operations such as the limited subway of radio transmission, railway tunnel and vcehicular tunnel;

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.

Four, description of drawings:

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

Fig. 2 is the structural representation of spring coil;

Fig. 3 is the local expanded view of spring coil;

Fig. 4 connects schematic diagram 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-inner wire contact, 6-spring coil, 7-sealing ring, 8-cable inner conductor, 9-cable outer conductor, 10-cable insulation, the 11-film draw, 12-connector, 13-leaky cable.

Five, embodiment:

Referring to Fig. 1, the utility model comprises outer conductor 1 and outer conductor 24, is provided with contact spring coil 6 in the outer conductor 24.Fig. 2 and Fig. 3 have shown the structure of spring coil 6, and spring coil 6 adopts with " crenel type " structure in the city wall building.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.Referring to Fig. 4, unique distinction of the present utility model adopts outer conductor 24 inner one section spring coil 6 circular arc as support, because copper has ductility preferably, cable outer conductor 9 is close on spring coil 6 circular arcs of outer conductor 24, is not easy cable outer conductor 9 is scratched; Connector outer conductor 24, spring coil 6 and cable outer conductor 9 be radially common clamping cables outer conductors 9 of power mutually, add after the attaching with making connector reach the classification of waterproof of IP68 after 11 pyrocondensations of the film draw after connecting with cable.Since be different from conventional by the sealing ring deformable seal, so this sealing means and cable dimension are irrelevant, connect any producer 7/8 " coaxial leaky cable can both reach good sealing effectiveness equally.

Claims

1. one kind connects 7/8 " the N type jack contact radio frequency connector of leaky cable, comprise outer conductor one (3) and outer conductor two (4), it is characterized in that: be provided with contact in the outer conductor two (4).

2. according to claim 1ly connect 7/8 " the N type jack contact radio frequency connector of leaky cable, it is characterized in that: described contact is spring coil (6).