CN218300495U

CN218300495U - Fastening type radio frequency coaxial connector structure

Info

Publication number: CN218300495U
Application number: CN202221691457.8U
Authority: CN
Inventors: 黄自辉; 杨智勇; 郭燕凌; 马南成
Original assignee: Dongguan Wen Tong Electronic Technology Co ltd
Current assignee: Dongguan Wen Tong Electronic Technology Co ltd
Priority date: 2022-06-30
Filing date: 2022-06-30
Publication date: 2023-01-13
Anticipated expiration: 2032-06-30

Abstract

The utility model belongs to the technical field of connectors, in particular to a fastening type radio frequency coaxial connector structure, which comprises a first connector and a second connector; the first connector comprises a first main body and a first terminal group fixed in the first main body; the second connector comprises a second main body and a second terminal group fixed in the second main body, an installation cavity for installing a cable is arranged in the second connector, and a glue injection hole is formed in the side surface of the installation cavity; the rear end of the second connector is provided with a fastening portion for clamping the cable. Through being provided with the injecting glue hole, after second terminal group and cable welded fastening, by injecting glue hole to the installation intracavity injecting glue, fill the space in the installation intracavity, make second terminal group and sinle silk be difficult for rocking, reinforcing the fastening degree of splice. And set up fastening portion on the second main part, with cable and second main part fastening connection, be difficult to influence the welding department when making external force tear the cable, prevent that the welding department from breaking, avoid the circuit to open circuit.

Description

Fastening type radio frequency coaxial connector structure

Technical Field

The utility model belongs to the technical field of the connector, especially, relate to a fastening type radio frequency coaxial connector structure.

Background

The rf coaxial connector is a component attached to a cable or mounted on an instrument, and serves as an electrical connection or separation element of a transmission line, and mainly functions as a bridge. The SMA connector (Sub Miniature a) is a Miniature radio frequency coaxial connector, has the advantages of small volume, wide frequency band, excellent mechanical and electrical performance and high reliability, is a radio frequency connector which is most widely applied, and is widely applied to the fields of microwave communication, spaceflight and navigation, weapon systems, microwave measuring equipment and the like.

One end of the SMA connector is usually connected with the cable, and the wire core of the cable is contacted with the terminal inside the SMA connector, but the wire core and the conductor are connected only in a welding mode in the existing connection mode, so that the welding position is easy to loosen due to pulling by external force in the using process, and further the condition of circuit breaking is caused, and the signal transmission is unstable. There is therefore a need for improvements in the prior art to address the above-mentioned problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a fastening type radio frequency coaxial connector structure aims at solving among the prior art SMA connector and appears welding not hard up technical problem that leads to the circuit to open circuit easily.

In order to achieve the above object, an embodiment of the present invention provides a fastening type rf coaxial connector structure, which includes a first connector and a second connector; the first connector comprises a first main body and a first terminal group fixed in the first main body; the second connector and the first connector are connected in a plug-in manner; the second connector comprises a second main body and a second terminal group fixed in the second main body, an installation cavity for installing a cable is arranged in the second connector, and a glue injection hole is formed in the side surface of the installation cavity; the rear end of the second connector is provided with a fastening portion for clamping a cable.

Preferably, the fastening portion includes two bow portions, both sides of each bow portion are provided with screw holes, and two bolts respectively pass through the screw holes on both sides of the bow portion to lock the two bow portions so as to clamp the cable.

As a preferred scheme, the front end of the first main body is provided with a connecting part on the periphery, the second main body is provided with a connecting part, and the connecting part is fixed to the connecting part in a limiting manner.

As a preferable scheme, a first limit ring is arranged on the peripheral side surface of the first main body, a second limit ring is arranged on the peripheral side surface of the second main body, the connecting piece is wrapped outside the second limit ring, and the front end of the connecting piece abuts against the front end of the second limit ring.

Preferably, the connecting portion is a screw thread, the connecting member is an annular member, the connecting member has a screw thread inside, and the connecting member and the connecting portion are screwed and fixed.

As a preferred scheme, a sealing ring is arranged on the first main body, the sealing ring is positioned at the front end of the first limiting ring, and the front end of the connecting piece abuts against the front end face of the sealing ring.

Preferably, the front end face of the first main body is recessed to form an insertion cavity, and the front ends of the first terminal group extend into the insertion cavity; the front end of the second main body is provided with a plug-in part, and the second terminal group is fixed in the plug-in part; the plug-in part is inserted into the plug-in cavity, and the first terminal group extends into the plug-in part to be connected with the corresponding terminal in the second terminal group.

As a preferred scheme, the front end lateral surface of the second main body is provided with a fool-proof groove, the inner wall protrusion of the insertion cavity is formed with a fool-proof post, the front end of the insertion part extends into the insertion cavity, and the fool-proof post is positioned in the fool-proof groove.

As a preferable scheme, a sealing gasket is arranged in the insertion cavity, and the front end of the insertion part extends into the insertion cavity and abuts against the sealing gasket.

The embodiment of the utility model provides an above-mentioned one or more technical scheme in the fastening type radio frequency coaxial connector structure have one of following technological effect at least: be provided with the injecting glue hole through the side at the installation cavity, after the sinle silk welded fastening of second terminal group and cable, by injecting glue hole to the injecting glue of installation cavity, fill the space in the installation cavity, make second terminal group and sinle silk be difficult for rocking, also strengthen the fastening degree of welding department simultaneously. And set up fastening portion on the second main part, with cable and second main part fastening connection, be difficult to influence the sinle silk of cable and the splice of second terminal group when external force tears the cable, prevent that the splice from splitting, avoid the circuit to open circuit, the reliability of reinforcing connection.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive labor.

Fig. 1 is a schematic overall structure diagram of a fastening type radio frequency coaxial connector structure according to an embodiment of the present invention;

fig. 2 is an exploded schematic view of a fastening type rf coaxial connector structure according to an embodiment of the present invention;

fig. 3 is a schematic cross-sectional view of a fastening type rf coaxial connector structure provided by an embodiment of the present invention.

Wherein, in the figures, the respective reference numerals:

100-a first connector; 101-an insertion cavity; 102-fool-proof post; 110-a first body; 111-a connecting portion; 112-a first stop collar; 113-sealing ring; 114-a gasket; 120-a first terminal set; 200-a second connector; 201-installation cavity; 202-glue injection holes; 203-fool-proof groove; 210-a second body; 211-a connector; 212-a second stop collar; 213-a plug-in part; 220-second terminal set; 230-a fastening portion; 231-bow; 231-screw holes; 233-bolts; 300-a cable; 310-a wire core; 320-housing.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below by referring to the drawings are exemplary and intended to explain the embodiments of the present invention and are not to be construed as limiting the present invention.

In the description of the embodiments of the present invention, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings only for the convenience of description of the embodiments of the present invention and to simplify the description, and are not intended to indicate or imply that the device or element so indicated must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and therefore should not be construed as limiting the invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the embodiments of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the embodiments of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly, e.g., as fixed or detachable connections or as an integral part; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the embodiments of the present invention can be understood by those skilled in the art according to specific situations.

In an embodiment of the present invention, as shown in fig. 1-3, a fastening type rf coaxial connector structure is provided, which includes a first connector 100 and a second connector 200; the second connector 200 and the first connector 100 are connected by mating.

The first connector 100 includes a first body 110 and a first terminal set 120 secured within the first body 110. The second connector 200 includes a second body 210 and a second terminal set 220 fixed in the second body 210. A mounting cavity 201 for mounting the cable 300 is formed in the second connector 200, the cable 300 extends into the mounting cavity 201 from the rear end of the second main body 210, and the wire core 310 of the cable 300 is welded and fixed to each terminal of the second terminal group 220. The side of installation cavity 201 is provided with injecting glue hole 202, after line core 310 and second terminal group 220 welded fastening, from injecting glue hole 202 to the interior injecting glue of installation cavity 201, with line core 310 and second terminal group 220 together fixed, the firm degree of reinforcing connection prevents the welding fracture of line core 310 and second terminal group 220. The rear end of the second connector 200 is provided with a fastening part 230 for clamping the cable 300, so that the outer shell 320 of the cable 300 and the second main body 210 are tightly fixed together, when the cable 300 is pulled by external force, the welding between the inner wire core 310 and the second terminal group 220 is not easily affected, and the welding looseness is prevented. Similarly, the first connector 100 may also be fixed in the same manner as the second connector 200, and the fixing effect of the first terminal set 120 and the other side cable 300 may be enhanced by injecting glue and providing a fastening mechanism.

In this embodiment, the fastening portion 230 includes two bow portions 231, each bow portion 231 has a screw hole 232 on both sides thereof, and two bolts 233 respectively pass through the screw holes 232 on both sides of the bow portion 231, so that the two bow portions 231 are locked to clamp the cable 300, and the fastening degree between the second body 210 and the cable 300 can be adjusted by adjusting the tightening degree between the bolts 233 and the screw holes 232, so as to adapt to cables of different specifications.

In other embodiments of the present invention, as shown in fig. 1 to 3, a connecting portion 111 is disposed around the front end of the first body 110, a connecting member 211 is disposed on the second body 210, and the connecting member 211 and the connecting portion 111 are fixed in a limiting manner. In this embodiment, the connection portion 111 is a screw, the connection member 211 is annular, the connection member 211 has a screw inside, and the connection member 211 and the connection portion 111 are screwed and fixed. Of course, the first connector 100 and the second connector 200 may also be fixedly connected by a rotary buckle, a limiting portion (not shown) is disposed on the first body 110/the second body 210, an "L" shaped limiting groove (not shown) is disposed on the second body 210/the first body 110, and the limiting portion extends into the limiting groove and then rotates to achieve the effect of fixed connection, which is not limited to the above.

The first limiting ring 112 is disposed on the peripheral side of the first body 110, the second limiting ring 212 is disposed on the peripheral side of the second body 210, the connecting member 211 is wrapped outside the second limiting ring 212, and the front end of the connecting member 211 abuts against the front end of the second limiting ring 212.

In other embodiments of the present invention, as shown in fig. 2-3, a sealing ring 113 is disposed on the first body 110, the sealing ring 113 is located at the front end of the first limiting ring 112, and the front end of the connecting member 211 abuts against the front end surface of the sealing ring 113, so as to enhance the dustproof and waterproof effects at the joint of the first connector 100 and the second connector 200.

The front end surface of the first body 110 is concavely formed with an insertion cavity 101, and the front ends of the first terminal group 120 extend into the insertion cavity 101; the front end of the second body 210 is formed with a plugging part 213, and the second terminal set 220 is fixed in the plugging part 213; the insertion part 213 is inserted into the insertion cavity 101, and the first terminal set 120 extends into the insertion part 213 to connect with the corresponding terminal in the second terminal set 220. The sealing gasket 114 is arranged in the insertion cavity 101, and the front end of the insertion part 213 extends into the insertion cavity 101 and abuts against the sealing gasket 114, so that the air tightness of the connection part is enhanced, and the insertion part 213 is protected from being excessively inserted to cause abrasion.

In the present embodiment, the first terminal set 120 includes 4 terminals, the second terminal set 220 also includes 4 terminals, the insertion part 213 is provided with 4 through holes 204, and the 4 terminals of the second terminal set 220 are fixed in the corresponding through holes 204.

In other embodiments of the present invention, as shown in fig. 2, the front end side of the second main body 210 is provided with a fool-proof groove 203, the inner wall of the insertion cavity 101 is formed with a fool-proof post 102, the front end of the insertion portion 213 extends into the insertion cavity 101 and the fool-proof post 102 is located in the fool-proof groove 203, so as to prevent the first terminal set 120 and the second terminal set 220 from connecting to corresponding terminals in some scenes.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. A fastening type radio frequency coaxial connector structure is characterized in that: comprises a first connector and a second connector; the first connector comprises a first main body and a first terminal group fixed in the first main body; the second connector and the first connector are connected in a plug-in mode; the second connector comprises a second main body and a second terminal group fixed in the second main body, an installation cavity for installing a cable is arranged in the second connector, and a glue injection hole is formed in the side surface of the installation cavity; the rear end of the second connector is provided with a fastening portion for clamping a cable.

2. The fastening-type radio frequency coaxial connector structure of claim 1, wherein: the fastening portion comprises two bow portions, screw holes are formed in two sides of each bow portion, and two bolts penetrate through the screw holes in the two sides of each bow portion respectively to enable the two bow portions to be locked to clamp the cable.

3. The fastening-type radio frequency coaxial connector structure of claim 2, wherein: the side of the front end of the first main body is provided with a connecting part, the second main body is provided with a connecting piece, and the connecting piece is fixed to the connecting part in a limiting manner.

4. The fastening-type radio frequency coaxial connector structure of claim 3, wherein: the connecting piece is coated outside the second limiting ring, and the front end of the connecting piece is abutted against the front end of the second limiting ring.

5. The fastening-type radio frequency coaxial connector structure of claim 4, wherein: the connecting part is a thread, the connecting piece is annular, the inside of the connecting piece is provided with a thread, and the connecting piece and the connecting part are fixed in a screwing way.

6. The fastening-type radio frequency coaxial connector structure of claim 4, wherein: the first main body is provided with a sealing ring, the sealing ring is located at the front end of the first limiting ring, and the front end of the connecting piece abuts against the front end face of the sealing ring.

7. The fastening-type radio frequency coaxial connector structure according to any one of claims 1 to 6, wherein: the front end surface of the first main body is concavely provided with an insertion cavity, and the front end of the first terminal group extends into the insertion cavity; the front end of the second main body is provided with a plug-in part, and the second terminal group is fixed in the plug-in part; the plug-in part is inserted into the plug-in cavity, and the first terminal group extends into the plug-in part to be connected with the corresponding terminal in the second terminal group.

8. The fastening-type radio frequency coaxial connector structure of claim 7, wherein: the front end side of the second main body is provided with a fool-proof groove, the inner wall protrusion of the insertion cavity is formed with a fool-proof column, and the front end of the insertion part extends into the insertion cavity and the fool-proof column is located in the fool-proof groove.

9. The fastening-type radio frequency coaxial connector structure of claim 7, wherein: the plug-in type plug-in device is characterized in that a sealing pad is arranged in the plug-in cavity, and the front end of the plug-in part extends into the plug-in cavity and abuts against the sealing pad.