CN104852234A

CN104852234A - N-type radio frequency coaxial connector and assembly method thereof

Info

Publication number: CN104852234A
Application number: CN201510218448.5A
Authority: CN
Inventors: 徐长水; 张辉
Original assignee: SHAANXI YIHUA ELECTRONIC Co Ltd
Current assignee: SHAANXI YIHUA ELECTRONIC Co Ltd
Priority date: 2015-04-30
Filing date: 2015-04-30
Publication date: 2015-08-19

Abstract

The present invention discloses an N-type radio frequency coaxial connector and an assembly method thereof. The connector comprises an outer conductor, an insulator, an inner conductor, a bush and a pressing ring. The radius of a large boss of the inner conductor is 0.27 mm larger than the radius of a small boss of the inner conductor. The radius of a small guide hole in the outer conductor is 0.55 mm smaller than the radius of a large guide hole in the outer conductor. The inner diameter, the outer diameter and the depth of a ring slot on the front end surface of the insulator are respectively 3.3 mm, 6.8 mm and 0.35 mm. The assembly method comprises the steps of firstly, striping a cable according to a cable stripping dimension; secondly, putting on the pressing ring, the bush, the insulator and the inner conductor onto the cable; thirdly, welding the core wire of the cable with the inner conductor; fourthly, loading welded parts into the outer conductor; and fifthly, pressing in the pressing ring by means of the assembly fixture of the N-type radio frequency coaxial connector. The cut-off frequency of the N-type radio frequency coaxial connector can be up to 18 GHz. By means of the N-type radio frequency coaxial connector, the standing-wave ratio VSWR of the test voltage on cable assembly products is smaller than or equal to 1.3 within the frequency range of 0-18 GHz.

Description

A kind of N type radio frequency coaxial connector and assembly method thereof

Technical field

The invention belongs to technical field of communication equipment, particularly relate to a kind of N type radio frequency coaxial connector and assembly method thereof.

Background technology

Radio frequency (RF) coaxial connector is can with little loss and bounce transmission radiofrequency signal in radio-frequency (RF) transmission system, and provide fast with a kind of interface unit be repeatedly connected, primarily of center conductor, insulator, housing, annex composition.Radio frequency (RF) coaxial connector can be divided into polytype according to instructions for use and interface dimensions, in general, inner wire excircle dimension is larger, and its power that can carry is also larger, but it is often not high that its shortcoming is frequency of utilization, this is also a contradiction in connector characteristic between frequency of utilization and power.

Summary of the invention

For the problems referred to above, the present invention proposes a kind of N type radio frequency coaxial connector and assembly method thereof, to solve the problem.

Technical solution of the present invention: a kind of N type radio frequency coaxial connector, comprise outer conductor, insulator, inner wire, lining and pressure ring, described inner wire comprises large boss and small boss, the large 0.27mm of radius of the radius ratio small boss of described large boss, described outer conductor comprises little pilot hole and large pilot hole, the little 0.55mm of radius of the large pilot hole of radius ratio of described little pilot hole, the front end face of described insulator adopts ring channel structures, insulator cannelure internal diameter 3.3mm, external diameter 6.8mm, groove depth 0.35mm.

An assembly method for N type radio frequency coaxial connector, mainly comprises the following steps:

Step 1: first stripped according to wire stripping size by cable, is through on cable by pressure ring, lining, insulator and inner wire successively;

Step 2: at the first weld locations place welding cable heart yearn and inner wire;

Step 3: the inner wire welded, insulator, lining, cable core are loaded in outer conductor, with N type radio frequency coaxial connector assembly tooling, pressure ring is pressed in outer conductor;

Step 4: at the second weld locations welding cable outer shielding layer.

Compared with prior art, the invention has the beneficial effects as follows: in the size Selection of inner wire, outer conductor and insulator, give best free size, on the basis utilizing conventional machining means and material, produce the N-type radio frequency connector that cut-off frequency can reach 18GHz.When connecting half steel cable, the cable assembly product that it is assembled into can meet frequency within the scope of 0 ~ 18GHz time, test voltage standing-wave ratio VSWR≤1.3.

Accompanying drawing explanation

Fig. 1 is N type radio frequency coaxial connector of the present invention assembling schematic diagram;

Fig. 2 is the appearance schematic diagram of N type radio frequency coaxial connector inner wire of the present invention;

Fig. 3 is N type radio frequency coaxial connector insulator appearance schematic diagram of the present invention;

Fig. 4 is the appearance schematic diagram of N type radio frequency coaxial connector outer conductor of the present invention;

Fig. 5 is the schematic diagram of welding cable heart yearn and inner wire;

Fig. 6 is the cable assembly product schematic diagram after having assembled;

Fig. 7 is N type radio frequency coaxial connector pressure ring assembling schematic diagram.

In figure, 1-inner wire, 2-insulator, 3-outer conductor, 4-lining, 5-pressure ring, the large boss of 6-, 7-small boss, 8-insulator cannelure, the little pilot hole of 9-, the large pilot hole of 10-, 11-cable, 12-first pad, 13-second pad, 14-cable core, the assembly tooling of 15-N type radio frequency (RF) coaxial connector.

Embodiment

Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.

As Figure 1-4, a kind of N type radio frequency coaxial connector, comprise inner wire 1, insulator 2, outer conductor 3, lining 4 and pressure ring 5, described inner wire comprises large boss 6 and small boss 7, the large 0.27mm of radius of the radius ratio small boss 7 of described large boss 6, described outer conductor comprises little pilot hole 9 and large pilot hole 10, the little 0.55mm of radius of the large pilot hole of radius ratio 10 of described little pilot hole 9, the front end face of described insulator 2 adopts ring channel structures, insulator cannelure 8 internal diameter a3.3mm, external diameter b6.8mm, groove depth c0.35mm.

As illustrated in figs. 5-7, N type radio frequency coaxial connector is when assembling, first cable 11 is stripped according to wire stripping size, again successively by pressure ring 5, lining 4, insulator 2 and inner wire 1 are through on cable 11, at the first pad 12 position welding cable heart yearn 14 and inner wire 1, then the inner wire 1 will welded, insulator 2, lining 4 loads in outer conductor 3, then (applicant applied for a patent this frock on April 29th, 2015 cable 11 to be put into N type radio frequency coaxial connector assembly tooling 15, number of patent application 201520271024.0) endoporus bending, pressure ring 5 is withstood in N type radio frequency coaxial connector assembly tooling 15 lower end, with hand press, pressure ring 5 is pressed in outer conductor 3, last at the second pad 13 position welding cable outer shielding layer, complete assembling.

To those skilled in the art, obviously the invention is not restricted to the details of above-mentioned one exemplary embodiment, and when not deviating from spirit of the present invention or essential characteristic, the present invention can be realized in other specific forms.Therefore, no matter from which point, all should embodiment be regarded as exemplary, and be nonrestrictive, scope of the present invention is limited by claims instead of above-mentioned explanation, and all changes be therefore intended in the implication of the equivalency by dropping on claim and scope are included in the present invention.Any Reference numeral in claim should be considered as the claim involved by limiting.

In addition, be to be understood that, although this specification is described according to execution mode, but not each execution mode only comprises an independently technical scheme, this narrating mode of specification is only for clarity sake, those skilled in the art should by specification integrally, and the technical scheme in each embodiment also through appropriately combined, can form other execution modes that it will be appreciated by those skilled in the art that.

Claims

1. a N type radio frequency coaxial connector, comprise inner wire (1), insulator (2), outer conductor (3), lining (4) and pressure ring (5), insulator (2) is positioned between inner wire (1) and outer conductor (3), it is characterized in that, described inner wire comprises large boss (6) and small boss (7), the large 0.27mm of radius of the radius ratio small boss (7) of described large boss (6), described outer conductor comprises little pilot hole (9) and large pilot hole (10), the little 0.55mm of radius of the large pilot hole of radius ratio (10) of described little pilot hole (9), the front end face of described insulator (2) adopts ring channel structures, insulator cannelure (8) internal diameter (a) 3.3mm, external diameter (b) 6.8mm, groove depth (c) 0.35mm.

2. an assembly method for N type radio frequency coaxial connector, is characterized in that, mainly comprises the following steps:

Step 1: first stripped according to wire stripping size by cable (11), is through on cable by pressure ring (5), lining (4), insulator (2) and inner wire (1) successively;

Step 2: at the first pad (12) position welding cable heart yearn (14) and inner wire (1);

Step 3: penetrate in outer conductor (3) by the inner wire welded (1), insulator (2), lining (4), cable core (14), with N type radio frequency coaxial connector assembly tooling (15) by pressure ring (5) press-in outer conductor (3);

Step 4: at the second pad (13) position welding cable outer shielding layer.