CN219393903U

CN219393903U - Radio frequency coaxial connector

Info

Publication number: CN219393903U
Application number: CN202320328487.0U
Authority: CN
Inventors: 罗修敏
Original assignee: Suzhou Chennuo Electronics Co ltd
Current assignee: Suzhou Chennuo Electronics Co ltd
Priority date: 2023-02-27
Filing date: 2023-02-27
Publication date: 2023-07-21
Anticipated expiration: 2033-02-27

Abstract

The utility model discloses a radio frequency coaxial connector which comprises an outer conductor, an inner conductor and an insulating medium, wherein the inner conductor is arranged in the outer conductor and is separated from the outer conductor through the insulating medium; the clamping sleeve is arranged at two ends of the outer conductor in a threaded manner and is provided with a medium channel and a conical pressing part, the pressing part is positioned at one side close to the outer conductor relative to the medium channel, and the medium channel is provided with an inner diameter equivalent to that of the outer conductor; the centering limiting parts are arranged at two ends of the outer conductor, and at least two centering limiting parts are uniformly distributed at any one end of the outer conductor; the utility model can solve the problems that when the radio frequency coaxial connector is plugged and unplugged, the whole connection between the radio frequency coaxial connector and the cable is easily loosened or even falls down due to overlarge pulling force, so that the working frequency is lower and the transmission effect is affected.

Description

Radio frequency coaxial connector

Technical Field

The utility model relates to the technical field of communication equipment connection, in particular to a radio frequency coaxial connector.

Background

A radio frequency coaxial connector is generally considered to be a component attached to a cable or mounted on an instrument, as a component for electrically connecting or disconnecting a transmission line, which belongs to an electromechanical integrated product, and simply it mainly functions as a bridge.

At present, when a radio frequency coaxial connector in the market is plugged, downward or upward axial displacement of an insulator in an inner conductor occurs frequently, or downward or upward axial displacement of the insulator in an outer contact occurs frequently, so that electric signal transmission between communication devices is greatly influenced, and therefore, a radio frequency coaxial connector capable of maintaining good transmission between signals is needed.

When the radio frequency coaxial connector in the current market is plugged and unplugged, the whole connection between the radio frequency coaxial connector and the cable is easily loosened or even falls due to overlarge pulling force, so that the working frequency is lower, and the transmission effect is influenced.

Disclosure of Invention

To overcome the above-mentioned drawbacks, an object of the present utility model is to provide a radio frequency coaxial connector.

In order to achieve the above object, the present utility model includes an outer conductor, an inner conductor, and an insulating medium, the inner conductor being disposed within the outer conductor and being separated from each other by the insulating medium, further includes:

the clamping sleeve is arranged at two ends of the outer conductor in a threaded manner and is provided with a medium channel and a conical pressing part, the pressing part is positioned at one side close to the outer conductor relative to the medium channel, and the medium channel is provided with an inner diameter equivalent to that of the outer conductor;

the centering limiting parts are arranged at two ends of the outer conductor, and at least two centering limiting parts are uniformly distributed at any one end of the outer conductor.

In a preferred embodiment of the above connector, the outer surface of the outer conductor is provided with a boss.

In the preferred technical scheme of the connector, an annular groove is formed in the inner wall of the outer conductor, and the insulating medium is clamped in the annular groove.

In a preferred embodiment of the above connector, each of the centering stoppers has a protrusion mounted on a surface of a side facing the central axis of the outer conductor.

In a preferred embodiment of the above connector, the protruding thorns are disposed at an inclination toward the outer conductor side at an end away from the centering limiting member.

In the preferred technical scheme of the connector, a rubber layer is fixedly connected in the medium channel.

In the preferred technical scheme of the connector, PTFE coatings are sprayed on the outer surfaces of the pressing part and the centering limiting piece.

In a preferred embodiment of the above connector, the length of the protruding thorn is 0.1-0.5mm.

The clamping sleeve has the beneficial effects that the clamping sleeve is screwed into the end part of the outer conductor so that the plurality of centering limiting parts synchronously move towards the central axis direction of the outer conductor, so that the cable is tightly pressed, the operation is convenient, the structure is simple, the clamping sleeve is suitable for production, and the clamping sleeve has higher practical performance.

Drawings

FIG. 1 is a front view of the present utility model;

FIG. 2 is a schematic view of a portion of the present utility model in section;

FIG. 3 is a diagram showing the connection relationship between the outer conductor and the inner conductor according to the present utility model;

in the figure: the insulation medium comprises an outer conductor 1, an inner conductor 2, an insulation medium 3, a clamping sleeve 4, a medium channel 41, a pressing part 42, a centering limiting part 5, a boss 6, a ring groove 7 and a protruding thorn 8.

Detailed Description

Preferred embodiments of the present utility model are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are merely for explaining the technical principles of the present utility model, and are not intended to limit the scope of the present utility model.

It should be noted that, in the description of the present utility model, terms such as "upper", "lower", "left", "right", "front", "rear", and the like, which indicate directions or positional relationships, are based on the directions or positional relationships shown in the drawings, are merely for convenience of description, and do not indicate or imply that the apparatus or elements must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Furthermore, it should be noted that, in the description of the present utility model, unless explicitly stated and limited otherwise, the terms "disposed," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected. The specific meaning of the above terms in the present utility model can be understood by those skilled in the art according to the specific circumstances.

As shown in fig. 1 to 3, a radio frequency coaxial connector of the present utility model includes an outer conductor 1, an inner conductor 2, and an insulating medium 3, the inner conductor 2 being disposed within the outer conductor 1 and being separated from each other by the insulating medium 3, further includes:

a ferrule 4 screw-fitted to both ends of the outer conductor 1, and having a medium passage 41 and a tapered pressing portion 42, the pressing portion 42 being located on a side close to the outer conductor 1 with respect to the medium passage 41, the medium passage 41 having an inner diameter equivalent to that of the outer conductor 1;

the centering limiting pieces 5 are arranged at two ends of the outer conductor 1, and at least two centering limiting pieces 5 are uniformly distributed at any one end of the outer conductor 1.

Referring to fig. 1, 2 and 3, the present application includes an outer conductor 1 and an inner conductor 2 for transmitting radio frequency signals, wherein the inner conductor 2 is installed in the outer conductor 1 and is spaced from each other by an insulating medium 3, a clamping sleeve 4 is installed at two ends of the outer conductor 1 through threads, wherein the outer wall of the outer conductor 1 is provided with external threads, an inner thread matched with the external threads is provided on the inner wall of the clamping sleeve 4, the clamping sleeve 4 is provided with a medium channel 41 and a pressing portion 42 at one side far away from the outer conductor 1, the cross section of the pressing portion 42 is in a conical shape, the pressing portion 42 is located at one side close to the outer conductor 1 relative to the medium channel 41, centering limiting members 5 are installed at two ends of the outer conductor 1, at any one end of the outer conductor 1, the centering limiting members 5 have at least two and are uniformly distributed on the outer conductor 1, the centering limiting members 5 have a certain elasticity, and the surface at one side far away from the outer conductor 1 does not exceed the limited range of the outer diameter of the end of the outer conductor 1 so as to avoid interference between the centering limiting members 5 and the end of the clamping sleeve 4.

When the cable is required to be installed on the radio frequency coaxial connector of the application, firstly, the cable is inserted into the clamping sleeve 4 through the medium channel 41, then the clamping sleeve 4 is pinched, one end of the outer conductor 1 is screwed into the clamping sleeve 4, after the outer conductor 1 enters the clamping sleeve 4 for a certain distance, the top ends of the centering limiting pieces 5 are contacted and extruded by the pressing parts 42, so that the top of each centering limiting piece 5 moves towards the central axis direction of the outer conductor 1, the top end of the centering limiting piece 5 is located in the range limited by the inner diameter of the outer conductor 1, the cable can be tightly pressed towards the central direction of the outer conductor 1 by the centering limiting pieces 5, and the problem that the cable is loosened or even falls off with the coaxial connector when pulled is solved.

After the installation of outer conductor 1 one end is accomplished, when the installation other end, adopt the same mode revolve twist cutting ferrule 4 can, the simple operation, this application simple structure simultaneously is suitable for production, possesses higher practicality.

In one or more embodiments, on either end of the outer conductor 1, the centering limiters 5 are provided with six. By this arrangement the cable can be pressed in all directions by the centering stop 5.

In one or more embodiments, the outer surface of the outer conductor 1 is provided with a boss 6.

Referring to fig. 1 to 3, the boss 6 is used to limit excessive screwing of the ferrule 4 onto the outer conductor 1, and reduce the possibility of damage to the centering limiter 5 due to excessive compression.

In one or more embodiments, the inner wall of the outer conductor 1 is provided with a ring groove 7, and the insulating medium 3 is clamped in the ring groove 7.

See fig. 3, through this kind of setting, can effectively avoid this application when the installation cable, the cable inner core supports the problem of pressing the aversion with insulating medium 3, improves the result of use of this application.

In one or more embodiments, each of the centering limiters 5 is provided with a spur 8 on a surface facing the central axis of the outer conductor 1.

Referring to fig. 2, after the centering limiting member 5 is pressed by the pressing portion 42 of the ferrule 4, the centering limiting member 5 drives the protruding thorn 8 to move toward the cable insulation layer, so that the protruding thorn 8 pierces the cable insulation layer, and thus the axial pressure on the cable can be improved, and the connection strength of the connector and the cable can be further improved.

The protruding spines 8 are sequentially provided with three protruding spines at intervals along the height direction of the centering and limiting member 5.

In one or more embodiments, the protruding thorn 8 is arranged at an end remote from the centering limiter 5 and inclined towards the outer conductor 1.

See fig. 2, through this kind of setting so that protruding thorn 8 pierces the insulating layer of cable, simultaneously can further improve this application to the axial compressive force of cable, and when cutting ferrule 4 withdraws from outer conductor 1 back, centering locating part 5 resets, protruding thorn 8 can be smooth withdraw from the cable insulating layer, has improved this application to the convenience of cable installation.

In one or more embodiments, a rubber layer is fixedly attached within the media channel 41. The rubber layer is not shown in the drawings, and through the arrangement, the friction force between the clamping sleeve 4 and the cable can be further increased, so that the fixing effect of the cable is improved.

In one or more embodiments, the pressing portion 42 and the centering and limiting member 5 are coated with a PTFE coating on the outer surface. Because PTFE possesses the self-lubricating effect to make centering limiter 5 and press the portion 42 contact the back, centering limiter 5 can slide on press the portion 42 smoothly, the staff's of being convenient for is to the installation of cable.

In one or more embodiments, the length of the male thorn 8 is from 0.1 to 0.5mm. The length of the protruding thorn 8 is specifically selected according to the thickness of the insulation layer of the cable, the thickness of the insulation layer of the cable is thicker, 0.5mm can be selected, and otherwise, 0.1mm can be selected.

The above embodiments are only for illustrating the technical concept and features of the present utility model, and are intended to enable those skilled in the art to understand the content of the present utility model and to implement the same, but are not intended to limit the scope of the present utility model, and all equivalent changes or modifications made according to the spirit of the present utility model should be included in the scope of the present utility model.

Claims

1. A radio frequency coaxial connector comprising an outer conductor, an inner conductor and an insulating medium, the inner conductor disposed within the outer conductor and separated from each other by the insulating medium, further comprising:

2. A radio frequency coaxial connector according to claim 1, wherein: the outer surface of the outer conductor is provided with a boss.

3. A radio frequency coaxial connector according to claim 1, wherein: and the inner wall of the outer conductor is provided with a ring groove, and the insulating medium is clamped in the ring groove.

4. A radio frequency coaxial connector according to claim 1, wherein: and protruding thorns are arranged on the surface of one side, facing the central axis of the outer conductor, of each centering limiting piece.

5. A radio frequency coaxial connector according to claim 4, wherein: the protruding thorns are arranged at one end far away from the centering limiting piece and face one side of the outer conductor in an inclined mode.

6. A radio frequency coaxial connector according to claim 1, wherein: and a rubber layer is fixedly connected in the medium channel.

7. A radio frequency coaxial connector according to claim 1, wherein: and PTFE coating is sprayed on the outer surfaces of the pressing part and the centering limiting piece.

8. A radio frequency coaxial connector according to claim 4 or 5, wherein: the length of the protruding thorns is 0.1-0.5mm.