CN215933866U

CN215933866U - Radio frequency test connector

Info

Publication number: CN215933866U
Application number: CN202121569487.7U
Authority: CN
Inventors: 吴建平
Original assignee: Wuxi Sien Electronic Technology Co ltd
Current assignee: Wuxi Sien Electronic Technology Co ltd
Priority date: 2021-07-12
Filing date: 2021-07-12
Publication date: 2022-03-01
Anticipated expiration: 2031-07-12

Abstract

The utility model belongs to the technical field of radio frequency, and discloses a radio frequency test connector which comprises an outer conductor, an insulator and an inner conductor which are coaxially arranged from outside to inside, wherein the outer conductor comprises a conductive main body, a first conductive elastic body and a movable conductor; a second pin is fixedly arranged at one axial end of the inner conductor, a second conductive elastic body which elastically moves along the axial direction is arranged at the other end of the inner conductor, a second sliding connection end is arranged at one end of the second conductive elastic body in the elastic extension direction, and the second pin is connected with the second sliding connection end through the second conductive elastic body; the second sliding connecting end is provided with fixed connecting pieces on two sides of the circuit board; the insulator is arranged between the outer conductor and the inner conductor and is of an annular structure. The radio frequency test connector structure provided by the utility model can ensure that the radio frequency test connector and the circuit board can keep the connection stability under the condition that the positions of the circuit board and the radio frequency test connector can be relatively adjusted.

Description

Radio frequency test connector

Technical Field

The utility model belongs to the technical field of radio frequency, and particularly relates to a radio frequency test connector.

Background

With the development of radio frequency test connectors, more and more radio frequency test connectors are used for connecting circuit boards. In the past, radio frequency test connectors between circuit boards are all rigid connectors, but due to the problem of processing precision, when two circuit boards are fixed by a fastener such as a bolt, a gap exists between the two circuit boards due to dimensional tolerance, so that the following two extremes are easily generated: (1) the pins of the radio frequency connector are easy to break off during assembly; (2) during assembly, poor contact between the radio frequency connector and the circuit board is easily caused, and finally unreliable connection or even failure between the circuit board and the circuit board is caused.

The prior art has the defect that the positions of the circuit board and the radio frequency test connector can be relatively adjusted when the radio frequency connector between the circuit board and the circuit board is in an assembling state, so that the connection between the radio frequency test connector and the circuit board is unstable.

SUMMERY OF THE UTILITY MODEL

The utility model provides a radio frequency circuit board, aiming at the problem that the connection between a radio frequency connector and a circuit board in the prior art is unstable.

In order to achieve the technical purpose, the technical scheme adopted by the utility model is as follows:

a radio frequency test connector is used for connecting two circuit boards, the circuit boards comprise a first circuit board and a second circuit board, and comprise an outer conductor, an insulator and an inner conductor which are coaxially arranged from outside to inside,

the outer conductor comprises a conductive main body, a first conductive elastic body and a movable conductor; a first pin is fixedly arranged at one end of a first circuit board of the conductive main body along the axial direction, a cavity for accommodating a first conductive elastomer is arranged in the conductive main body, the first conductive elastomer is arranged in the cavity of the conductive main body and stretches out and draws back along the axial direction of the conductive main body, one end of the movable conductor is arranged in the cavity of the conductive main body and is connected with the upper end of the first conductive elastomer, and the other end of the movable conductor is a first sliding connecting end;

the inner conductor is fixedly provided with a second pin at one end of the first circuit board along the axial direction, the other end of the first circuit board is provided with a second conductive elastomer which elastically moves along the axial direction, one end of the second conductive elastomer in the elastic extension direction is a second sliding connection end, and the second pin is connected with the second sliding connection end through the second conductive elastomer.

The application principle of the utility model is that in an assembly state, one end of the radio frequency test connector is fixed on a terminal corresponding to one circuit board through a first pin of the outer conductor and a second pin of the inner conductor, a first sliding connecting end of the movable conductor at the other end is tightly abutted on a terminal corresponding to the other circuit board under the elastic driving of the first conductive elastomer, and meanwhile, the first sliding connecting end of the movable conductor is fixedly connected with a second terminal corresponding to the circuit board under the elastic driving of the second conductive elastomer, so that the circuit board is elastically connected with the circuit board through the radio frequency test connector, and meanwhile, the fixed and movable connection is realized.

Furthermore, the second sliding connection end is provided with fixed connecting pieces on two sides of the second circuit board, the end wall of the second sliding connection end is provided with external threads, and the inner wall of each fixed connecting piece is provided with internal threads which are matched with the second sliding connection end to be rotatably connected.

Further, the fixed connection member includes a nut and a washer.

Furthermore, the middle part and the tail part of the first sliding connecting end are both provided with a flanging structure.

Furthermore, the front end of the first sliding connecting end is provided with an L-shaped flanging structure, and the shell of the conductive main body is provided with a turnover surface which is matched with the L-shaped flanging structure for limiting.

Furthermore, a cavity for accommodating a second conductive elastic body is arranged in the middle of the inner conductor, one end of the second conductive elastic body abuts against the bottom surface of the cavity, and the other end of the second conductive elastic body abuts against the second sliding connection end.

Furthermore, a boss is arranged at one end of the second conductive elastic body, which is back to the second sliding connection end, in the radial direction, and the boss is matched with the cavity wall of the inner conductor to limit the movable conductor in the axial direction.

Further, the first conductive elastic body and the second conductive elastic body both adopt springs.

Compared with the prior art, the utility model has the following beneficial effects:

1. the radio frequency test connector structure provided by the utility model can ensure that the radio frequency test connector and the circuit board can keep the connection stability under the condition that the positions of the circuit board and the radio frequency test connector can be relatively adjusted.

2. The inner conductor and the circuit board are fixed and rotationally fixed through the fixed connecting piece; the middle part and the tail part of the first sliding connection end are both provided with flanging structures, so that the outer conductor is further fixedly and elastically connected with the circuit board.

Drawings

FIG. 1 is a schematic view of an assembled RF test connector according to the present invention;

fig. 2 is a schematic diagram of an overall structure of an rf test connector according to the present invention.

The notation in the figure is: the circuit board comprises a circuit board 1, an outer conductor 2, an insulator 3, an inner conductor 4, a conductive body 5, a movable conductor 7, a nut 8, a gasket 9, a first circuit board 11, a second circuit board 12, a second pin 41, a second conductive elastomer 42, a second sliding connection end 43, a first pin 51, a first conductive elastomer 52 and a first sliding connection end 53.

Detailed Description

In order to facilitate understanding of those skilled in the art, the present invention will be further described with reference to the following examples and drawings, which are not intended to limit the present invention.

As shown in fig. 1 and 2, a radio frequency test connector is used for connecting two circuit boards 1, wherein the circuit boards 1 comprise a first circuit board 11 and a second circuit board 12, and comprise an outer conductor 2, an insulator 3 and an inner conductor 4 which are coaxially arranged from outside to inside, and the outer conductor 2 comprises a conductive main body 5, a first conductive elastomer 52 and a movable conductor 7; the conductive body 5 is fixedly provided with a first pin 51 along one axial end of the first circuit board, in this embodiment, the number of the first pins 51 can be set to be multiple, for example, 2 or more, and the first pins 51 are grounded in a use state. A cavity for accommodating a first conductive elastomer 52 is arranged in the conductive main body 5, the first conductive elastomer 52 is arranged in the cavity of the conductive main body 5 and extends and retracts along the axial direction of the conductive main body 5, one end of the movable conductor 7 is arranged in the cavity of the conductive main body 5 and is connected with the upper end of the first conductive elastomer 52, and the other end of the movable conductor 7 is a first sliding connection end; the first sliding connection end is the other end of the movable conductor 7 penetrating through the circuit board 1, and can be matched with the second sliding connection end 43 to stretch and retract in the cavity of the conductive main body 5.

A second pin 41 is fixedly arranged at one end of the first circuit board 11 of the inner conductor 4 along the axial direction, a second conductive elastic body 42 which elastically moves along the axial direction is arranged at the other end of the first circuit board, a second sliding connection end 43 is arranged at one end of the second conductive elastic body 42 in the elastic extension direction, and the second pin 41 is connected with the second sliding connection end 43 through the second conductive elastic body 42; the second sliding connection end 43 is a structure in which the inner conductor 4 penetrates the circuit board 1, similarly to the first sliding connection end structure.

The application principle of the utility model is that in an assembly state, one end of the radio frequency test connector is fixed on a terminal corresponding to one circuit board 1 through the first pin 51 of the outer conductor 2 and the second pin 41 of the inner conductor 4, the first sliding connection end of the movable conductor 7 at the other end is tightly abutted on a terminal corresponding to the other circuit board 1 under the elastic driving of the first conductive elastomer 52, and meanwhile, the first sliding connection end of the movable conductor 7 is fixedly connected with the second terminal corresponding to the circuit board 1 under the elastic driving of the second conductive elastomer 42, so that the circuit board 1 and the circuit board 1 are elastically connected and simultaneously are fixedly and movably connected through the radio frequency test connector.

The insulator 3 is arranged between the outer conductor 2 and the inner conductor 4, and the insulator 3 has a ring structure.

The second sliding connecting end 43 is provided with a fixed connecting piece on both sides of the second circuit board 12; the second sliding connection end 43 and the second conductive elastic body 42 are matched to elastically stretch and contract, and meanwhile, the second sliding connection end 43 is fixed on the circuit board 1 through a fixed connecting piece, namely, the distance between the two circuit boards 1 is fixed.

And an external thread is arranged on the end wall of the second sliding connecting end 43, and an internal thread matched with the second sliding connecting end 43 and rotatably connected with the inner wall of the fixed connecting piece is arranged. The fixed connection comprises a nut 8 and a washer 9. The fixing position of the second slide connection end 43 to the circuit board 1 is made more stable by the screw connection.

And the middle part and the tail part of the first sliding connecting end are both provided with a flanging structure. The arrangement of the flanging structure limits the expansion range of the first sliding connecting end of the movable conductor 7 at the other end of the circuit board 1, and prevents the second sliding connecting end 43 from excessively expanding and contracting to cause a connection error between the circuit board 1 and the circuit board 1.

The front end of the first sliding connecting end is provided with an L-shaped flanging structure, and the shell of the conductive main body 5 is provided with a turnover surface which is matched with the L-shaped flanging structure for limiting so as to realize the axial limiting of the movable conductor 7.

The middle part of the inner conductor 4 is provided with a cavity for accommodating a second conductive elastic body 42, one end of the second conductive elastic body 42 is abutted against the bottom surface of the cavity, and the other end is abutted against a second sliding connecting end 43.

One end of the second conductive elastic body 42, which faces away from the second sliding connection end 43, is provided with a boss along the radial direction, and the boss is matched with the cavity wall of the inner conductor 4 to limit the movable conductor 7 in the axial direction.

The first conductive elastic body 52 and the second conductive elastic body 42 each employ a spring.

The first pin 51 and the second pin 41 are soldered on the same circuit board 1. The fixed connection of outer conductor 2 and inner conductor 4 and a circuit board 1 respectively makes things convenient for the removal or the fixed connection of another circuit board 1.

1. the radio frequency test connector structure provided by the utility model can ensure that the radio frequency test connector and the circuit board 1 can keep the connection stability under the condition that the positions of the circuit board 1 and the radio frequency test connector can be relatively adjusted.

2. The inner conductor 4 and the circuit board 1 are fixed and rotationally fixed through a fixed connecting piece; the middle part and the tail part of the first sliding connection end are both provided with flanging structures, so that the outer conductor 2 is further fixedly and elastically connected with the circuit board 1.

A radio frequency test connector provided by the present application is described in detail above. The description of the specific embodiments is only intended to facilitate an understanding of the methods of the present application and their core concepts. It should be noted that, for those skilled in the art, it is possible to make several improvements and modifications to the present application without departing from the principle of the present application, and such improvements and modifications also fall within the scope of the claims of the present application.

Claims

1. A radio frequency test connector is used for connecting two circuit boards (1), wherein the circuit boards (1) comprise a first circuit board (11) and a second circuit board (12), and are characterized by comprising an outer conductor (2), an insulator (3) and an inner conductor (4) which are coaxially arranged from outside to inside;

the outer conductor (2) comprises a conductive main body (5), a first conductive elastic body (52) and a movable conductive body (7); a first pin (51) is fixedly arranged at one end of a first circuit board (11) of the conductive main body (5) along the axial direction, a cavity for accommodating a first conductive elastomer (52) is arranged in the conductive main body (5), the first conductive elastomer (52) is arranged in the cavity of the conductive main body (5) and stretches out and draws back along the axial direction of the conductive main body (5), one end of the movable conductor (7) is arranged in the cavity of the conductive main body (5) and is connected with the upper end of the first conductive elastomer (52), and the other end of the movable conductor (7) is a first sliding connection end;

the inner conductor (4) is fixedly provided with a second pin (41) along one end of the axial first circuit board (11), the other end of the inner conductor is provided with a second conductive elastomer (42) which elastically moves along the axial direction, one end of the second conductive elastomer (42) in the elastic extension direction is a second sliding connection end (43), and the second pin (41) is connected with the second sliding connection end (43) through the second conductive elastomer (42).

2. A radio frequency test connector according to claim 1, wherein the second sliding connection end (43) is provided with a fixed connection part on both sides of the second circuit board (12), the end wall of the second sliding connection end (43) is provided with an external thread, and the inner wall of the fixed connection part is provided with an internal thread which is matched and connected with the second sliding connection end (43).

3. A radio frequency test connector according to claim 2, wherein the fixed connection comprises a nut (8) and a washer (9).

4. A radio frequency test connector according to claim 2 or 3, wherein the middle portion and the tail portion of the first sliding connection end are provided with flange structures.

5. The radio frequency test connector according to claim 4, wherein the front end of the first sliding connection end is provided with an L-shaped flanging structure, and the shell of the conductive main body (5) is provided with a turnover surface matched with the L-shaped flanging structure for limiting.

6. A radio frequency test connector according to claim 5, characterized in that the inner conductor (4) is provided with a cavity in the middle for accommodating a second conductive elastomer (42), one end of the second conductive elastomer (42) abuts against the bottom surface of the cavity, and the other end abuts against the second sliding connection end (43).

7. A radio frequency test connector according to claim 6, characterized in that the end of the second conductive elastomer (42) facing away from the second sliding connection end (43) is provided with a boss along the radial direction, and the boss cooperates with the cavity wall of the inner conductor (4) to limit the movable conductor (7) in the axial direction.

8. A radio frequency test connector according to claim 7, wherein the first conductive elastomer (52) and the second conductive elastomer (42) are each spring-loaded.