CN207265351U - Installation type radio frequency (RF) coaxial connector - Google Patents

Abstract

The utility model discloses a kind of installation type radio frequency (RF) coaxial connector.It includes procapsid and back casing, the center conductor set in the front end of procapsid, insulator is provided between procapsid and center conductor, confined planes are provided with the inner cavity of procapsid, snap ring is provided between the confined planes of procapsid and the front end of back casing, the cable outer conductor with corrugated cross-section structure is serially connected with back casing, the front portion of cable outer conductor can be pressed between the confined planes of procapsid and snap ring, and No.1 waterproof grommet is provided between cable outer conductor and back casing.After above-mentioned structure, the snap ring of setting plays very crucial effect in terms of fixed cable, between front and rear housings and back casing makes whole connector be attained by higher waterproofing grade with being assembled with waterproof grommet at cable connection, realize the N interfaces of standard, its structure design is simple, it is easy for installation, it can at the construction field (site) widely use, ensure that high electrical property and mechanical performance.

Description

Installation type radio frequency (RF) coaxial connector

Technical field

It the utility model is related to a kind of radio frequency (RF) coaxial connector for bellows cable, specifically a kind of installation type Radio frequency (RF) coaxial connector.

Background technology

The general precursor of radio frequency (RF) coaxial connector of installation type includes outer conductor, center conductor and insulator, and rear body includes Clamp nut and sealing ring, but this sealing ring is directly inserted on cable sheath due to having to, therefore internal diameter size have to be larger than Cable sheath, and the later stage due to the crimp of no sealing ring, therefore can not be fitted close between crust, waterproofing grade It is relatively low；In addition, in the case where use environment is poor, the stability of performance is more difficult secure, especially to high performance requirements Product, this structure is relatively difficult to guarantee.

The content of the invention

It is easy for installation the technical problem to be solved by the present invention is to provide a kind of simple in structure, can be wide at the construction field (site) General use, ensures high electrical property and the installation type radio frequency (RF) coaxial connector of mechanical performance.

In order to solve the above-mentioned technical problem, the installation type radio frequency (RF) coaxial connector of the utility model, including procapsid and energy Enough and procapsid coordinates the back casing of installation, the center conductor set in the front end of procapsid, between procapsid and center conductor Insulator is provided with, confined planes are provided with the inner cavity of procapsid, are set between the confined planes of procapsid and the front end of back casing There is snap ring, the cable outer conductor with corrugated cross-section structure is serially connected with back casing, the front portion of cable outer conductor can be pressed in Between the confined planes and snap ring of procapsid, No.1 waterproof grommet is provided between cable outer conductor and back casing.

Confined planes in the front housing intracoelomic cavity for housing direction protrusion backward circular cone structure, the snap ring it is interior Ring surface is arranged to the internal projection structure that cross sectional shape is triangle, circular cone structure and the convex in snap ring of the procapsid The wherein side for playing structure is oriented to cooperation, and the front portion of the cable outer conductor is flared and is pressed in and is oriented between mating surface.

No. two waterproof grommets are provided between the back casing and procapsid.

The fluting that can make snap ring that there is tension force is provided with the snap ring.

It is that barbed too tight coordinates between the center conductor and insulator.

Annular groove is provided with the front end of the back casing, the snap ring is by annular groove location and installation in back casing and procapsid Between.

After above-mentioned structure, due to being provided with snap ring, cable between the confined planes of procapsid and the front end of back casing The front portion of outer conductor can be pressed between the confined planes of procapsid and snap ring, and the snap ring thus set plays in terms of fixed cable Very crucial effect, between front and rear housings and back casing with being assembled with waterproof grommet at cable connection makes entirely to connect Connect device and be attained by higher waterproofing grade, realize the N interfaces of standard, its structure design is simple, easy for installation, can construct Scene widely uses, and ensure that high electrical property and mechanical performance.

Brief description of the drawings

Fig. 1 is the assembling schematic diagram of the utility model installation type radio frequency (RF) coaxial connector；

Fig. 2 is the decomposition texture schematic diagram of the utility model installation type radio frequency (RF) coaxial connector.

Embodiment

With reference to the accompanying drawings and detailed description, the installation type radio frequency (RF) coaxial connector of the utility model is made further Describe in detail.

As shown in the figure, the installation type radio frequency (RF) coaxial connector of the utility model, including procapsid 7 and can match somebody with somebody with procapsid The back casing 6 of installation is closed, the front end of procapsid 7 is provided with installation cavity, and the rear end of procapsid 7, which is provided with, connects inner cavity, in connection There is internal thread in chamber, the front end periphery of back casing 6 is provided with external screw thread, and back casing and procapsid are screwed on by internal and external threads, No. two waterproof grommets 2, the center conductor set in the front end installation cavity of procapsid 7 are provided between back casing 6 and procapsid 7 4, the rear end of center conductor 4 is arranged to extend into the contact spring 3 in back casing, and riveting work is used between center conductor and contact spring Both are reliably connected into an entirety by skill, and insulator 5,4 He of center conductor are provided between procapsid 7 and center conductor 4 It is that barbed too tight coordinates between insulator 5, anti-axial displacement can be played the role of, in addition, the front end of procapsid Collar nut 10 is also associated with, No. three sealing rings 8 are provided between connector 10 and procapsid, are set in the connection inner cavity of procapsid 7 Confined planes are equipped with, snap ring 9 are provided between the confined planes of procapsid 7 and the front end of back casing 6, being provided with snap ring 9 to make Snap ring has the fluting of tension force, and the cable outer conductor with corrugated cross-section structure is serially connected with back casing 6, cable outer conductor Front portion can be pressed between the confined planes of procapsid 7 and snap ring 9, and No.1 waterproof is provided between cable outer conductor and back casing 6 Sealing ring 1.

Further, the confined planes in described 7 inner cavity of procapsid are the circular cone structure of housing direction protrusion backward, The inner ring surface of snap ring 9 is arranged to the internal projection structure that cross sectional shape is triangle, the circular cone structure and snap ring of procapsid 7 The wherein side of internal projection structure, which is oriented to, in 9 coordinates, and the anterior of cable outer conductor is flared and is pressed between guiding mating surface, rear shell Annular groove is provided with the front end of body 6, snap ring 9 is by annular groove location and installation between back casing 6 and procapsid 7.

By the structure design, snap ring interior shape is designed according to cable outer conductor ripple struction, and when installation pastes snap ring Close on outer conductor, the salient point of the endoporus minimum of snap ring just falls at the trough of cable bellows, does not make cable after mounting not It can come off because of front and rear play, inclined design has been done in the end face of snap ring, and when installation cable makes the oblique of cable outer conductor and snap ring Face paste is closed, and adds the contact area of cable and snap ring, while have also been made inclined design inside connector procapsid, front and rear Using the inclined-plane of procapsid and the contact of incline plane of snap ring when housing is screwed on, and between the outer conductor of cable is stuck in two inclined-planes, make Between three can forming face contact, substantially increase contact area, make the installation of connector more reliable, front and rear housings is being revolved Cable is fixed with connector after being connected to position, and the shell of the outer conductor of cable and connector is reliably connected, while cable The contact spring of center conductor and connector connects, and completes the installation of connector and cable, fluting is in addition added on snap ring and is set Meter, in the width of the exterior mill off 2mm of snap ring, is made snap ring have appropriate tension force, is when mounted somewhat supportted snap ring using tension force Open a bit, salient point at minimum among snap ring is fallen at cable ripple tube wave paddy, solve the installation question of snap ring and cable, The performance parameter of this product is：In current use 0~300MHz of frequency range, voltage standing wave ratio:≤ 1.15, at the same PIM reach- More than 115dBm.

Its use principle is as follows：

After cable presses defined size wire stripping, first No.1 waterproof grommet 1 is sleeved on cable corrugated external conductor, then will dress There is the back casing of snap ring and No. two waterproof grommets 2 to be installed on cable, then supportted cable outer conductor oral area with specific purpose tool Open, using snap ring by strain relief clamp inside back casing, the front and rear housings that is then screwed on makes cable not play, and by procapsid inside The internal projection structure diagonal face paste of the confined planes of circular cone structure and the triangle of snap ring is closed, while makes copper sheet at cable outer conductor It is stuck among the inclined-plane of procapsid inner chamfer and snap ring, three is tightly bonded, in addition, makes central contact spring insertion electricity at the same time In the copper pipe of cable center conductor, complete the installation of cable and connector, reach good mechanically and electrically performance, ensure cable and Enough pulling-out forces can be born after connector installation, it is ensured that firm and stability when body is connected with precursor after connector, it is preceding Back casing crush seal circle forward when screwing, makes it tighten completely on cable sheath after deforming, plays extraordinary waterproof Effect, while the structure for the cooperation that is screwed on and snap ring can play cable fixed and supporting role, it is ensured that body is with before after connector Firm and stability when body connects, so as to play very big effect, the utility model to the stability of the PIM performances of connector Using the center conductor of standard N-type, the hole size of back casing is more than the crust size of cable, therefore sealing ring is on cable sheath Play the role of waterproof, through actually detected proof, its compared with ordinary construction, the outer conductor and crust of back casing and cable it is tight Close fit, ensure that the reliability and stability of cooperation, it is ensured that the high-performance of product.

Claims (6)

1. a kind of installation type radio frequency (RF) coaxial connector, including procapsid（7）With the back casing that can coordinate installation with procapsid （6）, the procapsid（7）Front end in set center conductor（4）, the procapsid（7）And center conductor（4）Between set There is insulator（5）, it is characterised in that：The procapsid（7）Inner cavity in be provided with confined planes, the procapsid（7）It is spacing Face and back casing（6）Front end between be provided with snap ring（9）, the back casing（6）Inside it is serially connected with corrugated cross-section structure Cable outer conductor, the front portion of the cable outer conductor can be pressed in procapsid（7）Confined planes and snap ring（9）Between, it is described Cable outer conductor and back casing（6）Between be provided with No.1 waterproof grommet（1）.

2. installation type radio frequency (RF) coaxial connector described in accordance with the claim 1, it is characterised in that：The procapsid（7）In inner cavity Confined planes be the circular cone structure of housing direction protrusion backward, the snap ring（9）Inner ring surface be arranged to cross sectional shape For the internal projection structure of triangle, the procapsid（7）Circular cone structure and snap ring（9）Wherein the one of middle internal projection structure Side, which is oriented to, to be coordinated, and the anterior of the cable outer conductor is flared and is pressed between guiding mating surface.

3. according to the installation type radio frequency (RF) coaxial connector described in claim 1 or 2, it is characterised in that：The back casing（6）With it is preceding Housing（7）Between be provided with No. two waterproof grommets（2）.

4. installation type radio frequency (RF) coaxial connector described in accordance with the claim 3, it is characterised in that：The snap ring（9）On be provided with It can make snap ring that there is the fluting of tension force.

5. according to the installation type radio frequency (RF) coaxial connector described in claim 4, it is characterised in that：The center conductor（4）With it is exhausted It is that barbed too tight coordinates between edge (5).

6. according to the installation type radio frequency (RF) coaxial connector described in claim 5, it is characterised in that：The back casing（6）Front end Inside it is provided with annular groove, the snap ring（9）By annular groove location and installation in back casing（6）And procapsid（7）Between.