CN101005180A

CN101005180A - Seal radiofrequency coaxial connector with self locking mechanism

Info

Publication number: CN101005180A
Application number: CNA2007100034099A
Authority: CN
Inventors: 赵纪正; 李志刚; 卢明胜
Original assignee: China Aviation Optical Electrical Technology Co Ltd
Current assignee: China Aviation Optical Electrical Technology Co Ltd
Priority date: 2007-02-06
Filing date: 2007-02-06
Publication date: 2007-07-25
Anticipated expiration: 2027-02-06
Also published as: CN100461550C

Abstract

Six slots along axial line are made on head of plug body. The head portion is an arc shaped male tab. Claws are located outside the body case, and outer sheath is located outside the claws. Nut is screwed on postmedian portion of the body case. Three claws with barbs are placed between inner male tab of the body case and the nut in order to restrict axial drunkenness of claws. Radial clearance is kept between the outer sheath and the claws. There are five straight holes with different diameters and two cone shaped bores inside head of socket shell. The holes are matched to diameters of plug. The cone-shaped bores are guide holes. Outline of insulator is in step shape, where small end is extended out of the straight hole, and large end is stopped by the inner hole of shell. Full escaping lock connection between socket and plug is adopted in the invention so as to guarantee quick plugging in or out, and provide firm bond between socket and plug under execrable mechanical condition.

Description

A kind of seal radiofrequency coaxial connector that has self-locking mechanism

Technical field

The present invention relates to a kind of seal radiofrequency coaxial connector that has self-locking mechanism.

Background technology

Existing similar microminiature radio frequency coaxial connector such as MCX type, the locking form of plug and socket is: the case head of plug is an elastic construction, a circular boss is being arranged foremost, a cannelure that is complementary is with it arranged in the socket, behind plug insertion socket, the circular boss of plug head will be stuck in the cannelure in the socket, like this, will produce certain coupling mechanism force between the plug and socket, when needs breakaway plug and socket, apply certain axial force for plug or socket, both will throw off, and reach the purpose of separation.This shows, though its overall dimension size can meet the demands, but its locking mechanism is half escapement form, that is to say, if give the connector that plugs together to applying certain axial separation force, plug and socket will be separated, like this, in the abominable occasion of some service conditions, in course of normal operation, the plug and socket of connector centering just might be separated automatically, at this moment transmission line will open circuit, the normal transmission signal in addition, can not be realized sealing function after plug and socket plugs together on request.

Another kind of connector is the R series mini radio frequency (RF) coaxial connector that LEMO company produces, though its microwave property can reach requirement, also be the version of full escapement, if inoperation specialized agency, the plug and socket of connector centering just can not separated, it can be worked under abominable mechanical environment and phenomenon can not take place to throw off automatically, this point also can meet the demands fully, but,, do not possess sealing function because this series products does not have sealing mechanism at face of plugging together and cable attaching position, when the connector that plugs together when working under water, connector inside will intake, causes to connect to lose efficacy, thereby also unavailable.

Also have, present popular in the world QMA type connector is though its microwave property can reach requirement, but its overall dimension is excessive, after adding that the QMA socket is contained on the panel, it is a lot of to exceed panel, thereby also can't reach and can not exceed a lot of these requirements of panel after socket installs.In addition, the R series mini radio frequency (RF) coaxial connector of producing with LEMO company is the same, because this series products does not have sealing mechanism at face of plugging together and cable attaching position, do not possess sealing function, when the connector that plugs together when working under water, connector inside will intake, causes to connect to lose efficacy, thereby also unavailable.

In sum, should satisfy certain microwave property, (socket is installed on the panel to satisfy certain overall dimension, operating function (full escapement version) and installation requirement again simultaneously, and it is a lot of to exceed panel), existing MCX, LEMO, QMA or other any connector all can not satisfy above all requirements simultaneously.

Summary of the invention

The objective of the invention is: propose a kind of microminiature radio frequency coaxial connector, has certain microwave property, full escapement type of attachment, predetermined socket is installed on the panel, and it is a lot of to exceed panel, can realize a kind of seal radiofrequency coaxial connector that has self-locking mechanism of sealing function after plug and socket plugs together.

Technical scheme of the present invention is: plug is made up of pin insulator, contact pin, shell, contact pin places the insulator center, case head has six grooves identical with axis, its head is circular-arc boss, claw is positioned at the outside of shell, and overcoat is positioned at the outside of claw, and nut screws on the shell postmedian, the claw of three band hangnails places between shell inner convex platform and the nut and limits the claw axial endplay, and the hangnail of claw stretches out in the hole of overcoat; There is a cone tank at the shell middle part; Radially leave the gap between overcoat and the claw.

Socket is made up of jack, shell, insulator, the inside of case head have with the plug claw on the corresponding annular groove of hangnail, sealing ring places in the interior cannelure of shell, the case head inherence axially is divided into 5 straight hole and two bellmouths that diameter is different, the diameter of straight hole and the external diameter of plug are complementary, and bellmouth is a pilot hole, and the profile of insulator is step-like, its small end stretches out the straight hole base plane, and big end is stuck in the shell endoporus.

Advantage of the present invention is: plug and socket is full escapement locking type of attachment, can realize fast insert-pull, plug and socket can tightly plug together together under abominable mechanical environment condition, can arbitrarily not separate, if want breakaway plug and socket, just must operate specialized agency; In addition, socket is installed on the panel, and most volumes of socket are positioned at panel inside, and this makes complete machine attractive in appearance and be convenient to settle; Also have, can realize sealing function after plug and socket plugs together, have certain barrier propterty.Has excellent microwave property simultaneously.

Description of drawings

Fig. 1 is the structural representation of radio frequency (RF) coaxial connector plug of the present invention;

Fig. 2 is the structural representation of radio frequency (RF) coaxial connector seal socket of the present invention.

Embodiment

Below the present invention is described in further details.Referring to Fig. 1 and Fig. 2,

Connector plug of the present invention is made up of pin insulator 1, contact pin 2, shell 3, nut 4, claw 5, overcoat 6.Contact pin 2 places insulator 1 center, and insulator 1 is contained in the head of shell 3, and the afterbody of contact pin 2 has a hole, is used for welding with the heart yearn of radio frequency coaxial-cable; Hole in the head of contact pin 2 and the connector body jack 10 is complementary, shell 3 heads have six grooves identical with axis direction 7, head at shell forms six rubber-like contact chips, its head is circular-arc boss 8, claw 5 is positioned at the outside of shell 3, claw 5 places between shell 3 inner convex platforms and the nut 4, and restriction claw 5 axial endplays, the hangnail 9 of claw 5 stretches out in the hole of overcoat, three hangnails 9 of claw 5 are connected on three rubber-like reeds of claw 5, under the effect of external force, three hangnails 9 can radially moving back and forth along shell 3; Overcoat 6 is positioned at the outside of claw 5, radially leave the gap between overcoat 6 and the claw 5, there is a cone tank at the shell middle part, overcoat 6 can be done axial motion with claw 5 under external force, apply external force for three hangnails 9 of claw 5 by three holes on the overcoat 6, with adhesive bonds together, prevent that claw 5, overcoat 6 from coming off from shell 3 between nut 4 and the shell 3.

Connector body of the present invention is by jack 10, shell 11, insulator 12, sealing ring 14 is formed, jack 10 places insulator 12 centers, insulator 12 is a step-like garden post, the big end of insulator 12 is contained in the endoporus 23 of shell 11, the step surface at insulator 12 middle parts is concordant with the bottom of straight hole 20, annular groove 13 in the shell 11 is corresponding with the hangnail 9 on the plug claw 5, shell 11 inherences axially are divided into 5 straight holes 16 that diameter is different, 17,18,19,20, the external diameter of they and plug is complementary, two bellmouths 21 in the

shell

11,22 play the guiding role, sealing ring 14 places in the cannelure 15 in the shell 11, its external diameter and shell 11 are complementary, the diameter of its internal diameter and connector plug overcoat 6 is complementary, the end centre bit of jack 10 is equipped with a hole, and jack 10 has groove in porose center, like this, the head of jack 10 just forms elasticity, and the head of contact pin 2 is complementary in the centre bore of jack 10 ends and the connector plug.

When connector plug inserts connector body, the head of the head alignment socket of plug, when plugging together when putting in place, will hear shelves one, at this moment, hangnail 9 on the plug will fall in the annular groove 13 of socket, the head of contact pin 2 will insert in the hole of receptacle sockets 10 on the plug, forms reliably contact, and the circular-arc boss 8 on the pin head forms with socket straight hole 20 and reliably contacts, sealing ring 14 outsides on the socket compress the bottom of cannelure 15, inside compresses the outside of the shell 11 of plug, forms a sealing area, at this moment, water or other liquid just can not enter connector to inside, have played sealing function.When connector plug is subjected to non-artificial external force, because the hangnail 9 on the plug is stuck in the annular groove 13 of socket, at this moment, obscission just can not take place in plug, when needs with plug when socket separates, apply the opposite power of direction when plugging together to the overcoat on the plug 6, overcoat 6 will pass to power claw 5, at this moment, hangnail 9 on the claw 5 will shrink in the body of plug, when being retracted to a certain degree, hangnail 9 will come off in the annular groove in the socket 13, has at this moment just realized the separation of plug and socket.

Claims

1, a kind of seal radiofrequency coaxial connector plug that has self-locking mechanism, it is by pin insulator [1], contact pin [2], shell [3] is formed, contact pin [2] places insulator [1] center, case head has six grooves identical with axis [7], its head is circular-arc boss [8], it is characterized in that, claw [5] is positioned at the outside of shell [3], overcoat [6] is positioned at the outside of claw [5], nut [4] screws on shell [3] postmedian, claw [5] places between shell [3] inner convex platform and the nut [4] and limits claw [5] axial endplay, and the hangnail of claw [9] stretches out in the hole of overcoat; There is a cone tank at the shell middle part; Radially leave the gap between overcoat [6] and the claw [5].

One kind with the described socket that has the seal radiofrequency coaxial connector plug of self-locking mechanism of claim 1, jack [10], shell [11], insulator [12] is formed, it is characterized in that, the inside of shell [11] head has and the corresponding annular groove of plug claw [5] hangnail [9] [13], sealing ring [14] places in the interior cannelure [15] of shell [11], the case head inherence axially is divided into 5 straight holes [16] that diameter is different, [17], [18], [19], [20] and two bellmouths [21], [22], the diameter of straight hole and the external diameter of plug are complementary, bellmouth is a pilot hole, the profile of insulator [22] is step-like, its small end stretches out straight hole [20] base plane, and big end is stuck in shell [11] endoporus [23].

3. a kind of seal radiofrequency coaxial connector plug that has self-locking mechanism according to claim 1 is characterized in that, the claw [5] of three band hangnails [9] evenly branch the outside of shell [3] and in the hole of overcoat [6], stretch out.