CN201118029Y - N type jack contact piece RF coaxial connector adapting to 7/8''co-axial cable - Google Patents

Abstract

The utility model relates to an N type pin contact radio-frequency coaxial connector adapted with a 7/8'' coaxial cable, which can be quickly installed in the open and also adapted with a smooth tube cable connector and a corrugated tube cable connector at the same time, has a succinct structure, ensures that cable connection is simple and reliable, and has good tightness and more excellent and stable electric properties. The N type pin contact radio-frequency coaxial connector includes external conductors (1, 6); wherein, an internal conductor (2) is arranged between the external conductors (1, 6); an insulating support (3) as the main support for the internal conductor (2) is arranged on one side of the front end of the internal conductor (2), which is near to the external conductor (1); an insulating support (5) as the auxiliary support for the internal conductor (2) is arranged at one position of the tail of the internal conductor (2), which is near to the external conductor (6); the insulating support (3) is a TPX insulating support; a section of arc is arranged in the external conductor (6), and the tail of the external conductor (1) is provided with an inclined plane with a step.

Description

A kind ofly connect 7/8 " the N type jack contact radio frequency (RF) coaxial connector of coaxial cable

One, technical field:

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

Two, background technology:

In the background technology, along with the fast development of mobile communication cause, 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 7/8 " coaxial 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, the first-selection when therefore being convenient to the open-air connector of installing and also being antenna-feedback system and selecting connector for use.

Present 7/8 " coaxial cable can be divided into bellows and plain tube two big classes according to the shape of outer conductor.But since different cable manufacturers produce 7/8 " corrugated cable size difference to some extent all, and plain tube has bigger different with corrugated cable in shape especially.Therefore, though all be 7/8 " coaxial 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 there is not the connector that can connect plain tube and two kinds of dissimilar cables of bellows simultaneously in the market.

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 with it and the antenna feeder cable that becomes high power capacity, low-loss, low intermodulation is developed the first-selected interface during exploitation.Existing connect 7/8 " the N type jack contact radio frequency (RF) coaxial connector of coaxial 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 (RF) coaxial connector of coaxial 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 (RF) coaxial connector of coaxial cable; it can realize open-air Fast Installation; can also connect the connector of plain tube and two kinds of dissimilar cables of bellows simultaneously; 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 (RF) coaxial connector of coaxial cable; comprise outer conductor 1 and outer conductor 6; be inner wire 2 between outer conductor 1 and the outer conductor 6; it is characterized in that: be provided with as the inner wire 2 main insulated supports 3 that support near outer conductor 1 one sides at inner wire 2 front ends, inner wire 2 afterbodys are provided with insulated support 5 as inner wire 2 supplemental support near outer conductor 6 places.

Above-mentioned insulated support 3 is the TPX insulated support.

Above-mentioned outer conductor 6 inside are provided with one section circular arc, and outer conductor 1 afterbody is provided with the inclined-plane.

Above-mentioned outer conductor 1 aft mounted inclined-plane is the inclined-plane that has step.

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, and be positioned on the iron tower of tens meters even hundreds of rice, install for the ease of the field, 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 the simple and reliable connected mode that gets exactly, all can not adopt as modes such as welding.The utility model adopts by forward and backward two body structures dimerous, connector is installed chaotic degree because of part causes too much drop to minimum; And the utility model employing attaching mode, as long as use two spanners just can install, therefore be specially adapted to open-air fitting operation;

2, cable connects simple and reliable

It is very reliable to connect 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.

Different cable manufacturer production 7/8 " the corrugated coaxial cable size difference mainly concentrates on the diameter of dielectric, outer conductor, crust, the utility model is to 7/8 of different cable manufacturer production " coaxial cable has extremely strong compatibility.

Four, description of drawings:

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

Fig. 2 connects the cable simplified schematic diagram for the utility model;

Fig. 3 is Ministry of worker's partial enlarged drawing of Fig. 2;

Fig. 4 is outer conductor 1 an afterbody inclined-plane schematic diagram;

Fig. 5 is the H portion partial enlarged drawing of Fig. 4;

Fig. 6 is the structural representation of insulated support 3;

Fig. 7 is that the A of Fig. 6 is to view;

Fig. 8 is the structural representation of insulated support 5;

Fig. 9 is that the B of Fig. 8 is to view;

Figure 10 is the structural representation of outer conductor 6;

Figure 11 is that the C of Figure 10 is to view;

Figure 12 connects schematic diagram behind the cable for the utility model.

Among the figure, 1-outer conductor, 2-inner wire, 3-insulated support, 4-seal, 5-insulated support, 6-outer conductor, 7-connector, 8-cable, 9-cable outer conductor, 10-cable inner conductor, 11-cable insulation.

Five, embodiment:

Referring to Fig. 1, the utility model comprises outer conductor 1 and outer conductor 6, be inner wire 2 between outer conductor 1 and the outer conductor 6, be provided with as the inner wire 2 main insulated supports 3 that support near outer conductor 1 one sides at inner wire 2 front ends, close outer conductor 6 places of inner wire 2 afterbodys are provided with the insulated support 5 as inner wire 2 supplemental support, insulated support 3 is the TPX insulated support, and outer conductor 6 inside are provided with one section circular arc, and outer conductor 1 afterbody is provided with the inclined-plane that has step.

Referring to Fig. 2, Fig. 3, Figure 10 and Figure 11, the utility model adopts outer conductor 6 inner one section circular arc as support, because aluminium and copper all have ductility preferably, after opening, cable outer conductor 9 is close on the circular arc of outer conductor 6, by outer conductor 1 afterbody inclined-plane and the common clamping cables outer conductor 9 of outer conductor 6 inner circular arcs, no matter be light face or corrugated cable, no matter also the outer conductor of cable is an aluminium matter or copper, can both open smoothly and conform to arc surface, efficiently solve different cables and can't adopt same part to clamp the difficult problem of outer conductor.Referring to Fig. 4 and Fig. 5, the utility model adopts outer conductor 1 afterbody inclined-plane to do the mode of step, in the process that outer conductor 1 and outer conductor 6 are tightened, because step can provide bigger pressure, the top of step will penetrate in the outer conductor that opens, and can make connector reach the classification of waterproof of IP68 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 cable can both reach good sealing effectiveness equally.

Referring to Fig. 1 and Fig. 6, Fig. 7, the utility model adopts novel dielectric material and structure to make and the utlity model has excellent sealing performance, mechanical performance and third order intermodulation.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 patent 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 2.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 2, not only make the inner wire 2 of connector 7 obtain firm support, and make connector 7 inside have good sealing property, most importantly the electric property that TPX is stable makes connector 7 obtain more superior and stable electric property; Thereby TPX can mold pressing process the production cost that also reduces connector 7 simultaneously.Referring to Fig. 1 and Fig. 8, Fig. 9, in the utility model, another novel part is exactly an insulated support 5, insulated support 5 does not still give inner wire 2 with supplemental support, the more important thing is that its position that makes connector 7 connect for inner wire 2 afterbodys and cable core applies certain pressure in the process that connects cable 8, so not only connect reliably, and the third order intermodulation index raising of connector 7 is had great role.Figure 12 shows that the schematic diagram after the utility model connects cable.

Claims (4)

1, a kind ofly connect 7/8 " the N type jack contact radio frequency (RF) coaxial connector of coaxial cable; comprise outer conductor (1) and outer conductor (6); be inner wire (2) between outer conductor (1) and the outer conductor (6); it is characterized in that: be provided with as the main insulated support (3) that supports of inner wire (2) near outer conductor (1) one side at inner wire (2) front end, inner wire (2) afterbody locates to be provided with insulated support (5) as inner wire (2) supplemental support near outer conductor (6).

2, according to claim 1ly a kind ofly connect 7/8 " the N type jack contact radio frequency (RF) coaxial connector of coaxial cable, it is characterized in that: described insulated support (3) is the TPX insulated support.

3, according to claim 2ly a kind ofly connect 7/8 " the N type jack contact radio frequency (RF) coaxial connector of coaxial cable, it is characterized in that: described outer conductor (6) inside is provided with one section circular arc, and outer conductor (1) afterbody is provided with the inclined-plane.

4, according to claim 3ly a kind ofly connect 7/8 " the N type jack contact radio frequency (RF) coaxial connector of coaxial cable, it is characterized in that: the aft mounted inclined-plane of described outer conductor (1) is the inclined-plane that has step.

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