CN203406453U

CN203406453U - Waterproof BNC type female contact radio frequency connector

Info

Publication number: CN203406453U
Application number: CN201320408690.5U
Authority: CN
Inventors: 王铭新; 黄迪; 朱慧; 唐维峰
Original assignee: Phoenix Company of Chicago Inc
Current assignee: Phoenix Company of Chicago Inc
Priority date: 2013-07-10
Filing date: 2013-07-10
Publication date: 2014-01-22
Anticipated expiration: 2023-07-10

Abstract

The utility model discloses a waterproof BNC type female contact radio frequency connector, the front part of a casing is a connecting tube with a linear lock cylinder, the middle part of the casing is a D-shaped tubular external threaded body, the bottom of the casing is provided with a hexagonal prism-shaped annular step, and the rear part of the casing is provided with a one-piece line pressing bushing. According to the waterproof BNC type female contact radio frequency connector disclosed by the utility model, a traditional radio frequency connector design mode is changed; a sealing ring 1 and a sealing ring 2 are respectively arranged between the outer side of an insulating body 1 and the inner wall of the D-shaped tubular external threaded body and between an insulating body 1 and an insulating body 2; and the seepage of water is blocked efficiently. Therefore, the anti-interference performance of the waterproof BNC type female contact radio frequency connector is improved, and the use stability of the waterproof BNC type female contact radio frequency connector is ensured; and the waterproof BNC type female contact radio frequency connector can be widely applied to the fields, such as ocean, aerospace, military industry, chemical industry, electromechanical industry and communication.

Description

A kind of waterproof BNC type female head radio frequency connector

Technical field

the utility model relates to electronics field, particularly a kind of waterproof BNC type female head radio frequency connector.

Background technology

electronics industry is faced with the challenge of electronic system anti-interference problem all the time.Along with the extensive use of electronic equipment, and modern electronic equipment is day by day accurate, complexity and multifunction, and electromagnetic interference and radio frequency interference problem are day by day serious, it can make equipment performance generation minor variations, weaken, even cause the completely malfunctioning of equipment.Particularly communication, medical field, can cause communication disruption, instruction mistake to send out if electronic equipment is interfered, so that cause great economic loss, even jeopardize personal safety.

with regard to a system, various electromagnetic interference are the most serious at interface, and it can or be radiated internal system by the EMI conduction of system outside, can or be radiated system outside by the EMI conduction of internal system again.Therefore, the connector of interface plays an important role in anti-electromagnetic interference.For adapting to these new situations and the instructions for use that meets user, we plan to develop a series of radio frequency connectors, for the signal transmission of holding wire, power line, play the effect of anti-electromagnetism, radio frequency interference simultaneously.

in addition the operational environment of some radio frequency connector is outdoor, , or worse workplace, as seawater, chemical industry, space flight etc., not only there is the interference of electromagnetism, also exist the disturbing factor of water, or even there is corrosive liquid, even if indoor, temperature due to climatic environment, the variation of humidity, airborne hydrone can produce condensation in metal surface, traditional radio frequency connector mostly arranges waterproof grommet in a male and female junction, to joining under the state of tightening just concrete water-proof function, for highly sensitive, lower powered transmission signal, once be subject to the impact of water, can produce signal attenuation and short circuit phenomenon, therefore traditional connector female end is the waterproof requirement that can not meet IP67 grade.

Summary of the invention

for the technical problem of above-mentioned existence, the utility model, according to the fire resistance characteristic of radio frequency connector, aims to provide a kind of water proof type BNC female head radio frequency connector.

the utility model solves the technical scheme that its technical problem adopts: a kind of waterproof BNC type female head radio frequency connector, comprise nut, internal tooth packing ring, seal washer, shell, inner wire, insulator and line ball cover, described shell is anterior is the tube connector with in-line lock, middle part is D shape tubulose external screw thread body, one hexagon circular step is arranged at its bottom, at its afterbody, have a line ball disjunctor sleeve pipe, D shape tubulose external screw thread side plane is a milling flat; In D shape pipe bottom, have a circular step, on step, plane layout has Gask-O-Seal groove; At D shape tubulose external screw thread body internal diameter, be provided with insulator limited step;

described insulator comprises insulator 1, insulator 2, insulator 3, and insulator 1 is a two-staged step tubular body, and lateral surface is provided with annular seal ring 5 grooves and limited step in the middle; Insulator 2 is secondary tubulose stairstepping; Insulator 3 is one-level tubulose stairstepping;

described insulator 1, insulator 2 and insulator 3 are coaxially placed in the endoporus of shell mutually, are provided with annular seal ring 3 and inner wire 1 between insulator 6 and insulator 9;

the cylinder that described inner wire 1 is entity for two ends hollow center, side axial in the top has the U font groove of one or more, between lateral surface in the middle and insulator 2 internal diameters, there is a limit convex step, inner wire 1 and inner wire 2 axially through with insulator 1 and insulator 2 endoporus, be tight fit connection.

described inner wire 1 is the cylinder that two end hollow center are entity, and side axial in the top has the U font groove of one or more, has a radial perforation in the side of its lower end.

described inner wire 2 is two end hollow cylinders, and its one end and inner wire 1 mutually cover are spliced, and the other end is in insulator 3, and line ball cover is tight fit connection with D shape tubulose external screw thread body afterbody line ball disjunctor sleeve pipe.

described shell, inner wire are metal material, and each insulator is non-metallic material, and sealing gasket and sealing ring are a kind of material of rubber, latex, silica gel.

the utility model has changed conventional radio frequency connector Design Mode, between the outside and D shape tubulose external screw thread body inwall of insulator 1, be provided with sealing ring 1 and sealing ring 2 between insulator 1 and insulator 2, effectively intercepted the infiltration of water, thereby improved the interference free performance of product, guarantee the stability that product is used, can be widely used in the fields such as ocean, space flight, military project, chemical industry, electromechanics, communication.

Accompanying drawing explanation

fig. 1 is that the utility model is used view;

fig. 2 is the utility model Split type structure schematic diagram;

in its figure: 1-nut; 2-internal tooth packing ring; 3-seal washer 1; 4-pad; 5-seal washer 2; 6-insulator 1; 7-inner wire 1; 8-seal washer 3; 9-insulator 2; 10-shell; 11-inner wire 2; 12-insulator 3; 13-line ball cover.

Embodiment

the utility model is usingd shown in Fig. 2 as most preferred embodiment explanation specific implementation method:

select C3600 brass bar truck to go out the tube connector of shell 10 front portions, the circular step at rear portion, sealing gasket groove and internal diameter limited step, and connect line ball sleeve pipe; Lathe car goes out external screw thread; In the side axial of its end of thread, mill out a plane to plane on step, mill out the in-line lock of anterior tube connector, circular step outside journal axle is become to hexagon to milling; Form D shape tube-like envelope 10;

the material Mould Machining forming methods such as three insulators can employing, polytetrafluoroethylene, polyurethane are made;

inner wire 1 and inner wire 2 adopt C17300 copper and C3600 brass, inner wire 1 gets out centre bore at its two ends, adopts cutter blade to mill out six decile grooves, and mediate and Ageing Treatment at two ends, inner wire 2 recurrence one end get out centre bore, in its lower end side, get out a radial perforation;

for each parts, with frock special equipment, assembled, wherein inner wire 1 through with insulator 1 and insulator 2 endoporus, inner wire 2 is tight fit connection with insulator 3;

the utility model, after machined components moulding, should pass through Ageing Treatment, to eliminate the stress in material, reduces the stress corrosion in material surface use procedure in the future.

the foregoing is only a preferred embodiment of the present utility model; can not limit protection range of the present utility model with it; the utility model also can have other structural change; so long as the equalization of doing according to protection range of the present utility model changes and modify, all should belong in the scope that the utility model contains.

Claims

1. a waterproof BNC type female head radio frequency connector, comprises nut, internal tooth packing ring, seal washer, shell, inner wire, insulator and line ball cover, it is characterized in that:

Described shell is anterior is the tube connector with in-line lock, and middle part is D shape tubulose external screw thread body, and a hexagon circular step is arranged at its bottom, at its afterbody, has a line ball disjunctor sleeve pipe, and D shape tubulose external screw thread side plane is a milling flat; In D shape pipe bottom, have a circular step, on step, plane layout has Gask-O-Seal groove; At D shape tubulose external screw thread body internal diameter, be provided with insulator limited step;

Described insulator comprises insulator (1), insulator (2), insulator (3), and insulator (1) is a two-staged step tubular body, and lateral surface is provided with annular seal ring (5) groove and limited step in the middle; Insulator (2) is secondary tubulose stairstepping; Insulator (3) is one-level tubulose stairstepping;

Described insulator (1), insulator (2) and insulator (3) are coaxially placed in the endoporus of shell mutually, are provided with annular seal ring (3) and inner wire (1) between insulator (6) and insulator (9);

The cylinder that described inner wire (1) is entity for two ends hollow center, side axial in the top has the U font groove of one or more, between lateral surface in the middle and insulator (2) internal diameter, there is a limit convex step, inner wire (1) and inner wire (2) axially through with insulator (1) and insulator (2) endoporus, be tight fit connection.

2. waterproof BNC type female head radio frequency connector according to claim 1, it is characterized in that described inner wire (1) is the cylinder that two end hollow center are entity, side axial in the top has the U font groove of one or more, has a radial perforation in the side of its lower end.

3. waterproof BNC type female head radio frequency connector according to claim 1, it is characterized in that described inner wire (2) is two end hollow cylinders, its one end and inner wire (1) mutually cover are spliced, the other end is in insulator (3), and line ball cover is tight fit connection with D shape tubulose external screw thread body afterbody line ball disjunctor sleeve pipe.

4. waterproof BNC type female head radio frequency connector according to claim 1, is characterized in that described shell, inner wire are metal material, and each insulator is non-metallic material, and sealing gasket and sealing ring are a kind of material of rubber, latex, silica gel.