CN209401933U

CN209401933U - A kind of SMA connector

Info

Publication number: CN209401933U
Application number: CN201920073657.9U
Authority: CN
Inventors: 沈志贤; 张海南
Original assignee: Science And Technology Ltd Is Created In Suzhou
Current assignee: Science And Technology Ltd Is Created In Suzhou
Priority date: 2019-01-16
Filing date: 2019-01-16
Publication date: 2019-09-17
Anticipated expiration: 2029-01-16

Abstract

The utility model discloses a kind of SMA connectors, comprising: forms the housing forward end of the first accommodating hole, first accommodating hole axially penetrates through the housing forward end；Housing rear end, the one end of the housing rear end are fastened in the first accommodating hole of the housing forward end；Inner conductor；It is set in the attaching nut on the housing forward end by retainer ring, one second accommodating hole is formed on the attaching nut, second accommodating hole axially penetrates through the attaching nut；Wherein, the one end part of the housing forward end is in second accommodating hole, the first groove is formed on the outer circle wall that the housing forward end is located in second accommodating hole, second groove opposite with first groove is formed on the hole wall of second accommodating hole；A shaft shoulder is also formed on the outer circle wall that the housing forward end is located in second accommodating hole, a gasket seal is provided at the shaft shoulder.The SMA connector has the advantages that waterproof performance is good.

Description

A kind of SMA connector

Technical field

The utility model relates to connector technique field more particularly to SMA connectors.

Background technique

SMA connector is the interface unit for radio frequency feed line system, it is a kind of by means of electric signal or mechanical force Effect makes the function element of circuit on-off or changing-over.Currently, the SMA connector in industry does not all have waterproofness generally Can, water penetrates into equipment the phenomenon that leading to equipment moisture damage from adapter connector frequent occurrence.Therefore, it is necessary to study one Kind SMA connector.

Utility model content

Shortcoming present in view of the above technology, the utility model provide a kind of SMA connection that waterproof performance is good Device.

The technical scheme adopted by the utility model to solve the technical problem is as follows: a kind of SMA connector, comprising: form The housing forward end of first accommodating hole, first accommodating hole axially penetrate through the housing forward end；Housing rear end, the housing rear end One end be fastened in the first accommodating hole of the housing forward end；By insulative water-proof unit, the housing forward end is set Inner conductor in first accommodating hole；Be set in the attaching nut on the housing forward end by retainer ring, on the attaching nut at Type has one second accommodating hole, and second accommodating hole axially penetrates through the attaching nut；Wherein, the attaching nut and the shell Body rear end is located at the opposite two sides of the housing forward end, and the one end part of the housing forward end is in second accommodating hole, institute It states and forms the first groove, the hole wall of second accommodating hole on the outer circle wall that housing forward end is located in second accommodating hole On form second groove opposite with first groove, first groove and second groove are collectively formed one and are used for Accommodate the annular accommodating space of the retainer ring；It is also formed on the outer circle wall that the housing forward end is located in second accommodating hole There is a shaft shoulder, a gasket seal is provided at the shaft shoulder.

Preferably, a first hole shoulder for housing rear end described in axially position, institute are formed in first accommodating hole It states the first hole shoulder and first accommodating hole is divided into one first circular hole and one second circular hole for being interconnected and being coaxially disposed, institute It states the first circular hole and is connected with the housing rear end.

Preferably, the aperture value of first circular hole is greater than the aperture value of second circular hole.

Preferably, anti-skid design is formed on the exposed outer circle wall on the outside of the housing forward end of the housing rear end.

Preferably, internal screw thread, the internal screw thread and second groove are also formed on the hole wall of second accommodating hole It is located at the opposite both ends of second accommodating hole.

Preferably, the insulative water-proof unit include one be set on the inner conductor and be located at second circular hole in Waterproof grommet, a pair of of the insulator for being set on the inner conductor and being symmetrically positioned in the opposite two sides of the waterproof grommet, In, the insulator is located in second circular hole, and the waterproof grommet leans with the insulator, close to the shell The insulator of rear end side leans with the housing rear end.

Preferably, the insulator is in annulus column.

Preferably, a through-hole is formed on the housing rear end, the through-hole axially penetrates through the housing rear end, wherein The aperture of the through-hole is greater than the inner ring diameter of the insulator and is less than the race diameter of the insulator.

Preferably, the inner conductor is in elongate column body, wherein axial direction of the inner conductor in the housing forward end On length be equal to the insulator and the waterproof grommet the sum of thickness.

It preferably, is interference fit between the one end of the housing rear end and the first accommodating hole of the housing forward end.

The utility model compared with prior art, the beneficial effect is that: SMA connector provided by the utility model, shell It is provided with gasket seal between body front end and attaching nut, insulative water-proof unit is provided between housing forward end and inner conductor, has Have the advantages that waterproof performance is good；Insulator uses segmental structure, i.e. the insulator opposite two sides that are symmetrically distributed in waterproof grommet, Have the advantages that waterproof performance is good；Retainer ring can limit the axial movement between housing forward end and attaching nut but not influence shell Circumferentially rotating between front end and attaching nut has the advantages that connection is flexible, reliable；Housing rear end is fastened on housing forward end On, using split type shell set-up mode, housing rear end can be easily replaced according to the actual situation, had easy to use Advantage.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of SMA connector described in the utility model；

Fig. 2 is the schematic diagram of the section structure of the housing forward end of the utility model；

Fig. 3 is the schematic diagram of the section structure of the housing rear end of the utility model；

Fig. 4 is the schematic diagram of the section structure of the attaching nut of the utility model.

In figure: 10, housing forward end；11, the first accommodating hole；111, the first hole shoulder；12, the first groove；20, housing rear end； 21, through-hole；30, attaching nut；31, the second accommodating hole；32, the second groove；33, internal screw thread；40, insulative water-proof unit；41, absolutely Edge；42, waterproof grommet；50, inner conductor；60, retainer ring；70, gasket seal.

Specific embodiment

The following describes the utility model in further detail with reference to the accompanying drawings, to enable those skilled in the art referring to explanation Book text can be implemented accordingly.

As shown in Figures 1 to 4, the utility model provides a kind of SMA connector, comprising: forms the first accommodating hole 11 Housing forward end 10, first accommodating hole 11 axially penetrates through the housing forward end 10；Housing rear end 20, the housing rear end 20 One end be fastened in the first accommodating hole 11 of the housing forward end 10；It is arranged by insulative water-proof unit 40 in the shell Inner conductor 50 in first accommodating hole 11 of front end 10；The attaching nut on the housing forward end 10 is set in by retainer ring 60 30, one second accommodating hole 31 is formed on the attaching nut 30, and second accommodating hole 31 axially penetrates through the attaching nut 30；Wherein, the attaching nut 30 and the housing rear end 20 are located at the opposite two sides of the housing forward end 10, before the shell For the one end part at end 10 in second accommodating hole 31, the housing forward end 10 is located at the outer circle in second accommodating hole 31 The first groove 12 is formed on peripheral wall, and opposite with first groove 12 is formed on the hole wall of second accommodating hole 31 Two grooves 32, first groove 12 and second groove 32 are collectively formed one for accommodating the annular accommodating of the retainer ring 60 Space；A shaft shoulder, the shaft shoulder are also formed on the outer circle wall that the housing forward end 10 is located in second accommodating hole 31 Place is provided with a gasket seal 70, and the gasket seal 70 is in annulus plates, the inner ring and the shell of the gasket seal 70 The outer circle wall of body front end 10 leans, outer ring and the hole wall of second accommodating hole 31 lean.

As an embodiment of this programme, as shown in Fig. 2, forming one in first accommodating hole 11 for axially position First hole shoulder 111 of the housing rear end 20, first hole shoulder 111 by first accommodating hole 11 be divided into be interconnected and One first circular hole and one second circular hole of coaxial arrangement, first circular hole are connected with the housing rear end 20.

As an embodiment of this programme, as shown in Fig. 2, the aperture value of first circular hole is greater than second circular hole Aperture value.

As an embodiment of this programme, as shown in Figure 1, the housing rear end 20 is exposed in 10 outside of housing forward end Outer circle wall on form anti-skid design.

As an embodiment of this programme, as shown in figure 4, also forming internal screw thread on the hole wall of second accommodating hole 31 33, the internal screw thread 33 is located at the opposite both ends of second accommodating hole 31 with second groove 32.

As an embodiment of this programme, led as shown in Figure 1, the insulative water-proof unit 40 is set in described including one On body 50 and be located in second circular hole waterproof grommet 42, be set on the inner conductor 50 and be symmetrically positioned in described anti- A pair of of insulator 41 of the opposite two sides of waterstop ring 42, wherein the insulator 41 is located in second circular hole, the waterproof Sealing ring 42 leans with the insulator 41, the insulator 41 and the housing rear end close to 20 side of housing rear end 20 lean.

As an embodiment of this programme, the insulator 41 is in annulus column；The inner ring of the insulator 41 and institute State that inner conductor 50 leans, the outer ring of the insulator 41 and the hole wall of first accommodating hole 11 lean.

As an embodiment of this programme, a through-hole 21 is formed on the housing rear end 20, the through-hole 21 is axial to be passed through Wear the housing rear end 20, wherein the aperture of the through-hole 21 is greater than the inner ring diameter of the insulator 41 and is less than described The race diameter of insulator 41.

As an embodiment of this programme, as shown in Figure 1, the inner conductor 50 is in elongate column body, wherein led in described Length of the body 50 on the axial direction of the housing forward end 10 is equal to the thickness of the insulator 41 and the waterproof grommet 42 The sum of degree.

As an embodiment of this programme, the first accommodating of the one end of the housing rear end 20 and the housing forward end 10 It is interference fit between hole 11.

Although the embodiments of the present invention have been disclosed as above, it is not limited in institute in specification and embodiments Column use, it can be applied to various fields suitable for the present invention completely, for those skilled in the art, can Easily realize other modification, therefore without departing from the general concept defined in the claims and the equivalent scope, this is practical It is novel to be not limited to specific details and legend shown and described herein.

Claims

1. a kind of SMA connector characterized by comprising

The housing forward end (10) of the first accommodating hole (11) is formed, first accommodating hole (11) axially penetrates through the housing forward end (10)；

The one end of housing rear end (20), the housing rear end (20) is fastened on the first accommodating hole of the housing forward end (10) (11) in；

The inner conductor (50) being arranged in the first accommodating hole (11) of the housing forward end (10) by insulative water-proof unit (40)；

It is set in the attaching nut (30) on the housing forward end (10) by retainer ring (60), is formed on the attaching nut (30) There is one second accommodating hole (31), second accommodating hole (31) axially penetrates through the attaching nut (30)；

Wherein, the attaching nut (30) and the housing rear end (20) are located at the opposite two sides of the housing forward end (10), institute The one end part of housing forward end (10) is stated in second accommodating hole (31), the housing forward end (10) is located at described second and holds It sets and forms the first groove (12) on the outer circle wall in hole (31), formed on the hole wall of second accommodating hole (31) and institute Opposite the second groove (32) of the first groove (12) is stated, first groove (12) and second groove (32) are collectively formed one For accommodating the annular accommodating space of the retainer ring (60)；The housing forward end (10) is located in second accommodating hole (31) A shaft shoulder is also formed on outer circle wall, and a gasket seal (70) are provided at the shaft shoulder.

2. SMA connector as described in claim 1, which is characterized in that form one in first accommodating hole (11) and be used for First hole shoulder (111) of housing rear end described in axially position (20), first hole shoulder (111) is by first accommodating hole (11) It is divided into one first circular hole and one second circular hole for being interconnected and being coaxially disposed, after first circular hole is connected with the shell It holds (20).

3. SMA connector as claimed in claim 2, which is characterized in that the aperture value of first circular hole is greater than described second The aperture value of circular hole.

4. SMA connector as described in claim 1, which is characterized in that the housing rear end (20) is exposed before the shell Anti-skid design is formed on outer circle wall on the outside of end (10).

5. SMA connector as described in claim 1, which is characterized in that also formed on the hole wall of second accommodating hole (31) Have internal screw thread (33), the internal screw thread (33) is located at the opposite of second accommodating hole (31) with second groove (32) Both ends.

6. SMA connector as claimed in claim 2, which is characterized in that the insulative water-proof unit (40) is set in including one On the inner conductor (50) and be located at second circular hole in waterproof grommet (42), be set on the inner conductor (50) and It is symmetrically positioned in a pair of of insulator (41) of the opposite two sides of the waterproof grommet (42), wherein the insulator (41) is located at institute It states in the second circular hole, the waterproof grommet (42) leans with the insulator (41), close to the housing rear end (20) side The insulator (41) lean with the housing rear end (20).

7. SMA connector as claimed in claim 6, which is characterized in that the insulator (41) is in annulus column.

8. SMA connector as claimed in claim 7, which is characterized in that form a through-hole on the housing rear end (20) (21), the through-hole (21) axially penetrates through the housing rear end (20), wherein the aperture of the through-hole (21) is greater than the insulation The inner ring diameter of sub (41) and the race diameter for being less than the insulator (41).

9. SMA connector as claimed in claim 6, which is characterized in that the inner conductor (50) is in elongate column body, wherein Length of the inner conductor (50) on the axial direction of the housing forward end (10) is equal to the insulator (41) and described anti- The sum of the thickness of waterstop ring (42).

10. SMA connector as described in claim 1, which is characterized in that the one end and the shell of the housing rear end (20) It is interference fit between the first accommodating hole (11) of body front end (10).