CN201904442U

CN201904442U - Radio-frequency coaxial jumper wire

Info

Publication number: CN201904442U
Application number: CN2010206894630U
Authority: CN
Inventors: 沈小平; 喻志安
Original assignee: Jiangsu Tongding Optic Electronic Stock Co Ltd
Current assignee: Tongding Interconnection Information Co Ltd
Priority date: 2010-12-30
Filing date: 2010-12-30
Publication date: 2011-07-20
Anticipated expiration: 2020-12-30

Abstract

The utility model relates to a radio-frequency coaxial jumper wire which comprises a cable and coaxial connectors fixedly connected with two ends of the cable, wherein the cable comprises an inner conductor, a foaming insulating layer wrapped on the inner conductor, an outer conductor longitudinally wrapped on the foaming insulating layer and a polyethylene sheath extruded on the outer conductor; each coaxial connector comprises an inner conducting body which is arranged coaxially to the inner conductor of the cable, a first insulator, a second insulator and an outer conducting body, the first and the second insulator are sleeved on the inner conducting body and the inner conductor of the cable respectively, and the outer conducting body is wrapped at the peripheries of the first and the second insulators; and tin injection openings are formed on the inner conducting bodies and the of the outer conducting bodies of the coaxial connectors respectively. The inner conducting bodies and the inner conductor of the cable are connected by tin soldering through the tin injection openings, and the outer conducting bodies and the outer conductor of the cable are connected by tin soldering through the tin injection openings, so as to ensure good contact between the inner conducting bodies and the inner conductor of the cable, as well as good contact between the outer conducting bodies and the outer conductor of the cable, reduce the loss and the intermodulation effect and increase the standing-wave ratio. The radio-frequency coaxial jumper wire can meet the service requirements for signal coverage of the 2G (The 2nd generation telecommunication) wireless communication systems and the 3G (The 3rd Generation Telecommunication) wireless communication systems.

Description

A kind of radio-frequency (RF) coaxial wire jumper

Technical field

The utility model relates to a kind of radio-frequency (RF) coaxial wire jumper.

Background technology

The radio-frequency (RF) coaxial wire jumper is the basic device of transmitting radio frequency signal, it is widely used between communication antenna and the main feeder cable, between base station main equipment and the feeder line, between device and device, the pcb board, the radiofrequency signal that forms between radiofrequency signal board component and assembly, system and the subsystem is connected and the transmission of radiofrequency signal, thereby constitute a complete communication network covering system.At present, though the radio-frequency (RF) coaxial wire jumper is using on the market, but the shortcoming of the high loss of ubiquity, high intermodulation, fast development along with the communications industry, entering of 3G epoch, for better high quality signal, require the transmission line of low-loss, low intermodulation of crucial importance, so the exploitation of the radio-frequency (RF) coaxial wire jumper of low-loss, low intermodulation is extremely urgent.

The utility model content

The utility model purpose provides a kind of radio-frequency (RF) coaxial wire jumper with characteristic of low-loss, low intermodulation.

In order to reach the foregoing invention purpose, the technical solution of the utility model is: a kind of radio-frequency (RF) coaxial wire jumper, comprise cable, the coaxial connector that is fixedly connected with the cable two ends, described cable is by inner wire, coat foaming insulation layer in the conductor, vertical outer conductor and the pe sheath of extrusion molding on outer conductor that wraps on the foaming insulation layer formed, described coaxial connector comprises the interior electric conductor with the coaxial setting of cable inner conductor, first insulator and second insulator in being set in respectively on electric conductor and the cable inner conductor, be coated on the outer electric conductor of first insulator and the second insulator periphery, offer respectively on the interior electric conductor of described coaxial connector and the outer electric conductor and annotate Xi Kou, described in electric conductor and cable inner conductor and outer electric conductor and cable outer conductor respectively by notes Xi Kou mutually soldering be connected.

Further, interior electric conductor one end of described coaxial connector is in the form of slot, and the inner wire end of described cable stretches in this groove, and described notes Xi Kou is opened in the sidepiece of described groove.

Be injected with sleeve pipe on the cable cover(ing) that outer electric conductor the inner of described coaxial connector is adjacent, thereby prevent that outside moisture content or moisture from entering loss, intermodulation and the voltage standing wave ratio performance that influences product from connector and cable junction.

The outer end of the outer electric conductor of described coaxial connector is fixed with insulating case.

Adopt such scheme, the utility model compared with prior art has following advantage: the utility model radio-frequency (RF) coaxial wire jumper firmly is connected electric conductor, outer electric conductor in the connector with inner wire, the outer conductor of radio frequency coaxial-cable respectively by heating tin silk, both contact better to make it, reduce the wastage and the intermodulation performance, improve the standing-wave ratio performance, can satisfy the instructions for use of 2G, the covering of 3G wireless telecommunication system signal.

Description of drawings

Accompanying drawing 1 is the structural representation of the utility model radio-frequency (RF) coaxial wire jumper;

Accompanying drawing 2 is an A-A direction cutaway view among Fig. 1;

Wherein: 1, coaxial connector; 11, interior electric conductor; 111, holding tank; 12, first insulator; 13, outer electric conductor; 14, second insulator; 2, sleeve pipe; 3, cable; 31, inner wire; 32, insulating barrier; 33, outer conductor; 34, sheath; 4, annotate Xi Kou; 5, annotate Xi Kou; 6, insulating case.

Embodiment

Below in conjunction with accompanying drawing the utility model preferred embodiment is elaborated:

Radio-frequency (RF) coaxial wire jumper as depicted in figs. 1 and 2, it is mainly by radio frequency (RF) coaxial connector 1, injection moulding sleeve pipe 2, radio frequency coaxial-cable 3 is formed, wherein radio frequency coaxial-cable 3 is from the inside to the outside successively by inner wire 31, insulating barrier 32, outer conductor 33 and sheath 34 are formed, in the present embodiment, inner wire 31 adopts copper-clad aluminum conductor, insulating barrier 32 is high pressure injecting CO 2 physical blowing polyethylene sheath-bubble-Pi insulation, weld with embossing after outer conductor 33 wraps on the insulating barrier 32 for the fine copper band is vertical again and form, sheath 34 is made for the common polythene material of fast light heat or low-smoke non-halogen flame-retardant polythene material.Radio frequency (RF) coaxial connector 1 is mainly by interior electric conductor 11, first insulator 12 in being used to be set on the electric conductor 11, be used to be set in second insulator 14 on the cable inner conductor 31 and be coated on first insulator 12 and the outer electric conductor of second insulator, 14 peripheries 13 compositions, wherein, interior electric conductor 11 is silver-plated beryllium-bronze, it is in the form of slot with the mutually close end of cable inner conductor 31, and offer notes tin mouth 4 at this groove shape sidepiece, the end of cable inner conductor 31 stretches in the slotted eye, carry out soldering by annotating tin mouth 4, make the inner wire of cable and the interior electric conductor of coaxial connector be fixedly connected.The outer electric conductor 13 of coaxial connector 1 is the brass of plating ternary alloy three-partalloy, and the inner of electric conductor 13 also is formed with and annotates tin mouth 5 outside this, carries out soldering by this notes tin mouth 5, makes the outer conductor 33 of cable firmly be connected with the outer electric conductor 13 of coaxial connector.First insulator 12 of coaxial connector 1 and second insulator 14 in a tubular form, it is made by corrosion-resistant, high-low temperature resistant, resistance to ag(e)ing, insulation property are good, dielectric loss is little polytetrafluoroethylene (PTFE) material.

Outer end and the inner at the outer electric conductor 13 of coaxial connector 1 also are injected with insulating case 6 and sleeve pipe 2 respectively, and it mainly adopts polypropylene material to make, and has good electrical properties and high-frequency insulation, is not subjected to humidity effect.

To the manufacturing process of the utility model radio-frequency (RF) coaxial wire jumper be described below:

At first, cut stripping radio frequency coaxial-cable 3, its inner wire 31 is stretched out 5～7mm, guarantee its no foamed material in surface, clean out with the termination burr and the corner angle of file simultaneously, then sheath 34 is peeled off, make outer conductor 33 expose 6～10mm inner wire 31; Then second insulator 14 with connector 1 installs on the inner wire 31 of cable 3, then cable inner conductor 31 is stretched in the interior electric conductor 11 of connector 1, again the tin silk is put into the notes tin mouth 4 of electric conductor 11, inject the tin of fusing by the gun welding machine heating, the interior electric conductor 11 of connector 1 and the inner wire 31 of cable 3 are firmly joined; Then, interior electric conductor 11 front ends of connector 1 are packed in first insulator 12 fully, as shown in Figure 2, and then the tin silk is put into notes tin mouth 5 between the outer conductor 33 of the outer electric conductor 13 of connector 1 and cable 3, inject the tin of fusing by the gun welding machine heating, the outer electric conductor 14 of connector 1 and the outer conductor 33 of cable 3 are firmly joined, so just connector 1 firmly is connected together mutually with cable 3; Then, the mould of high-pressure injection moulding machine is put in connector 1 and cable 3 junctions, form injection moulding sleeve pipe 2, promptly make the utility model low-loss, the coaxial wire jumper of low-intermodulation rf.

It is good that the utility model radio-frequency (RF) coaxial wire jumper has low-loss, low intermodulation, high shielding characteristic, bending and water resistance, long service life, has lower temperature resistance, resistance to wear and ultraviolet radiation resisting performance characteristics, can use at China's all regions, be applicable to the instructions for use that all wireless telecommunication system signals cover.

The foregoing description only is explanation technical conceive of the present utility model and characteristics; its purpose is to allow the personage who is familiar with this technology can understand content of the present utility model and enforcement according to this; can not limit protection range of the present utility model with this; all equivalences of being done according to the utility model spirit change or modify, and all should be encompassed within the protection range of the present utility model.

Claims

1. radio-frequency (RF) coaxial wire jumper, comprise cable (3), the coaxial connector (1) that is fixedly connected with cable (3) two ends, described cable (3) is by inner wire (31), be coated on the foaming insulation layer (32) on the inner wire (31), vertical outer conductor (33) and the pe sheath (34) of extrusion molding on outer conductor (33) that wraps on the foaming insulation layer (32) formed, described coaxial connector (1) comprises the interior electric conductor (11) with the coaxial setting of cable (3) inner wire (31), be set in first insulator (12) and second insulator (14) on interior electric conductor (11) and cable (3) inner wire (31) respectively, be coated on the outer electric conductor (13) of first insulator (12) and second insulator (14) periphery, it is characterized in that: offer respectively on the interior electric conductor (11) of described coaxial connector (1) and the outer electric conductor (13) and annotate Xi Kou (4,5) in, described electric conductor (11) and cable inner conductor (31) and outer electric conductor (13) and cable outer conductor (33) respectively by notes Xi Kou mutually soldering be connected.

2. radio-frequency (RF) coaxial wire jumper according to claim 1, it is characterized in that: interior electric conductor (11) one ends of described coaxial connector (1) are in the form of slot, inner wire (31) end of described cable (1) stretches in this groove, and described notes Xi Kou (4) are opened in the sidepiece of described groove.

3. radio-frequency (RF) coaxial wire jumper according to claim 1 and 2 is characterized in that: be injected with sleeve pipe (2) on the cable cover(ing) (34) that outer electric conductor (13) the inner of described coaxial connector (1) is adjacent.

4. radio-frequency (RF) coaxial wire jumper according to claim 3 is characterized in that: the outer end of the outer electric conductor (13) of described coaxial connector (1) is fixed with insulating case (6).

5. according to claim 1 or 2 or 4 described radio-frequency (RF) coaxial wire jumpers, it is characterized in that: the inner wire (31) of described cable (3) is a copper-clad aluminum conductor, its insulating barrier (32) is made for high pressure carbon dioxide injection physical blowing polyethylene, and its outer conductor (33) is a copper strips.

6. radio-frequency (RF) coaxial wire jumper according to claim 5, it is characterized in that: the interior electric conductor (11) of described coaxial connector (1) is made by silver-plated beryllium-bronze, its outer electric conductor (13) is made by the brass of alloy plating, and first insulator (12) and second insulator (14) adopt polytetrafluoroethylmaterial material to make.