CN208890026U

CN208890026U - F type coaxial connector

Info

Publication number: CN208890026U
Application number: CN201821535707.2U
Authority: CN
Inventors: 樊磊
Original assignee: ZHEJIANG WANMA GROUP SPECIAL ELECTRON CABLE CO Ltd
Current assignee: ZHEJIANG WANMA GROUP SPECIAL ELECTRON CABLE CO Ltd
Priority date: 2018-09-19
Filing date: 2018-09-19
Publication date: 2019-05-21
Anticipated expiration: 2028-09-19

Abstract

The utility model relates to a kind of F type coaxial connectors, include nut and hollow shell, and the shell is integrally formed by head tube and tail pipe；Head tube adjacent end portion is equipped with annular groove, and the nut, which is inlayed by the stamping forming interior hook in end with head tube, to be flexibly connected；Close installation has dumbbell shaped insulator in the head tube, and the dumbbell shaped insulation subcenter is through there is acupuncture needle, and acupuncture needle tail portion extends in nut, and acupuncture needle head extends to dumbbell shaped insulator end；Inner connecting tube is equipped in the shell, the inscribed tube head and shell interference fit connect, and the end of inner connecting tube is equipped with step, and installation extends to acupuncture needle inner hole through isolated insulation with electric cable foaming layer outer diameter isolated insulation of the same size, the inner conductor of cable；Cable jacket accommodating chamber is formed between the inner connecting tube tail portion and tail pipe.The dumbbell shaped insulator of close installation in the utility model head tube, middle section wall thickness is smaller, and acupuncture needle can reduce the stress extruding to acupuncture needle when being inserted into, and reduces assembling operation difficulty.

Description

F type coaxial connector

(1) technical field

The utility model relates to a kind of F type coaxial connectors.

(2) background technique

Japanese Ministry of Internal Affairs and Communications proposes in August, 2014, will be from 2016, in more Japanese BS number (the satellite electricity of spectators Depending on) the logical super clear TV signal of 4K of runin, it is contemplated that it is formal open-minded in 2018.It is for the Olympic Games of the year two thousand twenty Tokyo that this plan, which can be said, Race broadcasting preheat, while being to popularize the super clear TV signal of 4K towards the Olympic Games.

According to Japanese customers and market development needs, develops and connect applied to satellite TV set-top boxes and outdoor satellite antenna The connector connect.It is shown by the investigation of private 6 company of BS, selects the user up to 38,000,000 of BS number, popularity rate reaches About 7 one-tenth.Currently, if user needs to enjoy 4K audio visual effect, it is necessary to dedicated receiver and coaxial connecting line are bought, with 4K It gradually promotes, market capacity is by further expansion.

The outer insulation diameter that 2C coaxial cable is defined in 3501 standard of Japanese customers JIS C is 2mm.Due to the cable screens The outer diameter for covering aluminium foil is almost equal with the outer diameter of acupuncture needle tail end, if therefore conventional F-connector does not do quarantine measures in assembling, The outer conductor aluminium foil of 100% probability acupuncture needle and cable overlap joint and it is short-circuit.And conventional F-connector is not easy group in use Dress, and the characteristic impedance of connector is generally lower than 75 ohm, influences the signal decaying and signal reflex of connecting line.To influence 4K The clarity of TV.The nut in assembling of screw-type F is easy by being broken to plug-in unit deboost or separate with main body cover And lead to performance failure.

(3) summary of the invention

Technical problem to be solved in the utility model is to overcome the above problem, provides a kind of ease of assembly, low signal The F type coaxial connector of loss.

For this purpose, the utility model takes following technical scheme:

A kind of F type coaxial connector, includes nut and hollow shell, and the shell is integrally formed by head tube and tail pipe； Head tube adjacent end portion is equipped with annular groove, and the nut, which is inlayed by the stamping forming interior hook in end with head tube, to be flexibly connected；It is described Close installation has dumbbell shaped insulator in head tube, and for the dumbbell shaped insulation subcenter through there is acupuncture needle, acupuncture needle tail portion extends to spiral shell In cap, acupuncture needle head extends to dumbbell shaped insulator end；Inner connecting tube, the inscribed tube head and shell are equipped in the shell Interference fit connection, the end of inner connecting tube are equipped with step, installation and electric cable foaming layer outer diameter isolated insulation of the same size, electricity The inner conductor of cable extends to acupuncture needle inner hole through isolated insulation；Cable jacket is formed between the inner connecting tube tail portion and tail pipe Accommodating chamber.

The acupuncture needle head is equipped with barb structure.

The inscribed pipe outer wall is equipped with progressive protrusion.

The outer shell outer wall corresponds to the sub- position of isolated insulation equipped with groove.

Reinforcing rib is used inside the nut, screw thread process has arrived nut bottom.

The acupuncture needle uses high-conductive metal material, and acupuncture needle surface uses gold-plated structure.

The utility model has the advantage that the dumbbell shaped insulator of close installation in 1, head tube, middle section wall thickness compared with Small, acupuncture needle can reduce the stress extruding to acupuncture needle when being inserted into, and reduce assembling operation difficulty；2, with electric cable foaming layer outer diameter size one Isolated insulation of cause, overlaps coaxial cable shield aluminium foil with acupuncture needle while guaranteeing characteristic impedance consistency, avoid this The characteristic impedance of F-type connector and coaxial cable disclosed in utility model mismatches and the risk of easily short circuit；3, pipe outer wall is inscribed Equipped with progressive protrusion, increase and cable retention after cable outer conductor and sheath insertion, while avoiding squeezing when tail pipe riveting It is pressed onto cable insulation medium and leads to impedance discontinuity, lead to the loss of signal；4, there is the ring inlayed with nut in metal shell front end Shape slot structure, head tube and tail pipe, which are integrally formed, is used for carrying power cables sheath and outer conductor, which need connector only when assembling Pre-install dumbbell shaped insulator and inner connecting tube inside the shell, connector, which is disposed vertically rear, needs a punching press that connector can be completed Assembling.Assembling procedure is reduced, cost of labor is reduced；5, the groove structure that outer shell outer wall corresponds to the sub- position setting of isolated insulation increases The retentivity of injection molding external mold and connector；6, the screw thread process of nut has arrived nut bottom, and the contact increased with female end is dry Area is related to, to increase the retentivity of female end and connector, F-type connector disclosed by the utility model is effectively ensured not by electricity Cable self weight and moment pulling force cause to fall off or electrical property degrades, and guarantees the reliability of connection；Reinforcing rib is used inside nut, is made Connector torsion is greater than 5N/M, effectively prevents overexertion when operator assembles and damages connector, while the reinforcing rib Not with shell assemble interfere, thus ensure that nut rotation when it is smooth and do not issue abnormal sound in an assembling process；7, acupuncture needle head Portion is equipped with barb structure, prevents coaxial cable because self weight causes inner conductor to be pullled acupuncture needle by stress, causes to connect after making acupuncture needle bounce back It touches bad；Acupuncture needle reduces signal reflex using high-conductive metal material and gold-plated reduction contact impedance；8, isolated insulation uses Teflon material is simultaneously in the same size with electric cable foaming layer outer diameter, and being mounted between acupuncture needle and cable prevents cable aluminum foil from taking with acupuncture needle Connect short circuit；9, the inner connecting tube in shell prevents shell stress during riveting from squeezing coaxial cable foaming layer, so that characteristic hinders It is anti-discontinuous to increase the loss of signal.

(4) Detailed description of the invention

Fig. 1 is the utility model structure chart；

Fig. 2 is Fig. 1 cross-sectional view；

Fig. 3 is Fig. 1 right view；

Fig. 4 is Fig. 1 left view；

Fig. 5 is the utility model interior of shell structural decomposition diagram.

(5) specific embodiment

With reference to the accompanying drawings and detailed description, the utility model is furtherd elucidate, it should be understood that following specific embodiment parties Formula is merely to illustrate the utility model rather than limitation the scope of the utility model.It should be noted that making in being described below Word "front", "rear", "left", "right", "up" and "down" refer to that the direction in attached drawing, word "inner" and "outside" respectively refer to Be directed towards or far from geometric center of specific component direction.

Referring to attached drawing 1-5, a kind of F type coaxial connector includes nut 1 and hollow shell 22, and the shell is by head tube 2 It is integrally formed with tail pipe 33；Head tube adjacent end portion is equipped with annular groove 44, the nut by the stamping forming interior hook 55 in end with Head tube inlays flexible connection；Close installation has dumbbell shaped insulator 5 in the head tube, and the dumbbell shaped insulation subcenter, which runs through, to be had Acupuncture needle 3, acupuncture needle tail portion extend in nut, and acupuncture needle head 31 extends to dumbbell shaped insulator end；It is equipped in the shell interior Adapter tube 6, the inscribed tube head and shell interference fit connect, and the end of inner connecting tube is equipped with step 62, installation and electric cable foaming The inner conductor 77 of layer outer diameter isolated insulation 4 of the same size, cable extends to acupuncture needle inner hole through isolated insulation；In described It takes between tail portion and tail pipe and forms the accommodating chamber 88 of cable jacket 87.The acupuncture needle head is equipped with barb structure 32.It is described Inscribed pipe outer wall is equipped with progressive raised 63.The outer shell outer wall corresponds to the sub- position of isolated insulation equipped with groove 99.The nut Inside uses reinforcing rib 11, and screw thread process has arrived nut bottom.The acupuncture needle uses high-conductive metal material, and acupuncture needle surface uses Gold-plated structure.

Technological means disclosed in the utility model is not limited to the technical means disclosed in the above technical means, and further includes Technical solution consisting of any combination of the above technical features.The above is specific embodiment of the present utility model, is answered It, for those skilled in the art, without departing from the principle of this utility model, can be with when pointing out Several improvements and modifications are made, these improvements and modifications are also considered as the protection scope of the utility model.

Claims

1. a kind of F type coaxial connector, includes nut and hollow shell, it is characterised in that: the shell is by head tube and tail pipe It is integrally formed；Head tube adjacent end portion is equipped with annular groove, and the nut inlays activity even by hook in the punch forming of end and head tube It connects；Close installation has dumbbell shaped insulator in the head tube, and the dumbbell shaped insulation subcenter through there is acupuncture needle, prolong by acupuncture needle tail portion It extends in nut, acupuncture needle head extends to dumbbell shaped insulator end；Inner connecting tube, the inscribed tube head are equipped in the shell Be interference fitted and connect with shell, the end of inner connecting tube is equipped with step, installation and electric cable foaming layer outer diameter be of the same size be isolated it is exhausted Edge；Cable jacket accommodating chamber is formed between the inner connecting tube tail portion and tail pipe.

2. F type coaxial connector as described in claim 1, it is characterised in that: the acupuncture needle head is equipped with barb structure.

3. F type coaxial connector as claimed in claim 2, it is characterised in that: the inscribed pipe outer wall is equipped with progressive protrusion.

4. F type coaxial connector as claimed in claim 3, it is characterised in that: the outer shell outer wall corresponds to isolated insulation position It installs fluted.

5. F type coaxial connector as claimed in claim 4, it is characterised in that: use reinforcing rib inside the nut, screw thread adds Work has arrived nut bottom.

6. F type coaxial connector as claimed in claim 5, it is characterised in that: the acupuncture needle uses high-conductive metal material, gold Wire surface uses gold-plated structure.