CN214585734U

CN214585734U - Testing device for radio frequency coaxial connector

Info

Publication number: CN214585734U
Application number: CN202023273141.0U
Authority: CN
Inventors: 李斌; 芦坤
Original assignee: Zhenjiang Huazhan Electronic Science & Technology Co ltd
Current assignee: Zhenjiang Huazhan Electronic Science & Technology Co ltd
Priority date: 2020-12-30
Filing date: 2020-12-30
Publication date: 2021-11-02
Anticipated expiration: 2030-12-30

Abstract

The utility model discloses a testing arrangement of radio frequency coaxial connector, include: bottom layer subassembly, upper assembly, vertical motion drive assembly, the bottom layer subassembly includes: the testing device comprises a bottom plate, a lower-layer circuit board horizontally erected above the bottom plate, a sliding end socket vertically installed on the lower-layer circuit board, and a lower-layer testing port connector installed on one side of the lower-layer circuit board; the upper assembly includes: the device comprises a top plate, an upper circuit board horizontally erected below the top plate, a locking end socket vertically installed on the upper circuit board and opposite to the sliding end socket in position, an upper testing port connector installed on one side of the upper circuit board, a displacement sensor, an intermediate converter vertically inserted into the locking end socket, and a sliding end socket inserted into the other end of the intermediate converter. The utility model discloses a vertical motion drive assembly control upper circuit board is vertical reciprocating motion about being in lower floor's circuit board top, realizes structure dynamic continuity motion, finally realizes the continuity test to radio frequency signal.

Description

Testing device for radio frequency coaxial connector

Technical Field

The invention relates to the technical field of radio frequency coaxial connectors, in particular to a testing device of a radio frequency coaxial connector.

Background

The new 5G technology application requires more layout of small base stations and advanced integration technologies using various integrated large-scale array antennas. Therefore, the integrated and miniaturized radio frequency device becomes an essential element in the 5G era communication equipment. The rf coaxial connector plays a very important role as a signal transmission connection port in a mobile communication system, which also needs to change to a high-density miniaturized application in compliance with the requirements of the 5G era. At present, various new types of miniaturized connectors in 5G mobile communication systems generally adopt a method of through connection of an inter-board adapter, which is a combined connection of a group of radio frequency coaxial connectors, and is a blind-mating engagement scheme among a sliding-end socket, an intermediate adapter and a locking-end socket, and is widely applied at present.

The change in electrical configuration directly affects the electrical performance of the connector assembly, and may have a greater effect on the rf signal parameters passing therethrough. Therefore, when the connector assembly is detected, not only the electrical performance of the connector assembly engaged to the limit position needs to be tested, but also the variation of the electrical performance along with the displacement in the whole engagement displacement process needs to be verified, so that the connector assembly can be ensured to have good electrical performance at different positions in the whole engagement process. At present, the conventional test scheme is to fix a locking end socket and a sliding end socket in a connector assembly on clamps on two sides respectively, and then to install fixing blocks with different lengths in the middle of the clamps on the two sides to keep different distances between the sockets on the two sides so as to simulate different engagement displacement change values in actual use. The test method can only test the electrical performance of a certain position in the whole displacement, and when the displacement value needs to be changed, the test tool needs to be disassembled to replace the positioning fixing block. The testing method cannot test the continuous change of the displacement, is a process of dynamic change of the electrical index, needs to disassemble and assemble the tool, is complex to operate and affects the precision of the testing result.

Disclosure of Invention

The invention provides a testing device of a radio frequency coaxial connector, which aims to solve the technical problems that the testing position is fixed and discontinuous, the operation of the testing process is complicated and the measuring precision is influenced in the prior art.

The invention provides a testing device of a radio frequency coaxial connector, which comprises: the device comprises a bottom layer assembly, an upper layer assembly and a vertical motion driving assembly, wherein the upper layer assembly is drawn by the vertical motion driving assembly to reciprocate vertically above the bottom layer assembly;

the bottom layer assembly comprises: the testing device comprises a bottom plate, a lower-layer circuit board horizontally erected above the bottom plate, a sliding end socket vertically installed on the lower-layer circuit board, and a lower-layer testing port connector installed on one side of the lower-layer circuit board, wherein a circuit for conducting the sliding end socket and the lower-layer testing port connector is arranged on the lower-layer circuit board; the upper assembly includes: the roof, the level erects the upper circuit board of roof below, vertical the installing on the upper circuit board with locking end socket that sliding end socket position is relative installs upper test port connector, displacement sensor of upper circuit board one side, there is the switch on the upper circuit board locking end socket and upper test port connector's circuit, the vertical intermediate conversion ware that has closed on the locking end socket, the intermediate conversion ware other end is inserted the sliding end socket, the roof is drawn by vertical motion drive assembly and is in perpendicular back and forth motion directly over the lower floor's circuit board, the intermediate conversion ware inserts the one end of sliding end socket is inserting initial position to inserting reciprocating motion between the extreme position.

Further, the vertical motion drive assembly includes: the vertical four support screw rods that erect lower floor's circuit board four corners, the screw in is in support the bearing gear subassembly on the screw rod, erect step motor on the roof, the bearing gear subassembly includes: the gear is screwed on the support screw rod, the bearing is sleeved on the support screw rod, the inner ring of the bearing is fixedly connected with the surface of the gear, the outer ring of the bearing is fixedly connected with the top plate, and the output shaft gear of the stepping motor is in driving connection with the gear through a toothed belt.

Further, be equipped with the several confession on the circuit board of lower floor the installation position of slip end socket installation, the installation position includes: the locking end socket comprises a mounting position coaxial with the locking end socket and a plurality of mounting positions with eccentric angles stored in the locking end socket.

Further, the bottom layer assembly further comprises: the sliding end socket is arranged on the lower layer circuit board through the mounting table.

The invention has the beneficial effects that:

the utility model discloses install slip end socket, locking end socket respectively on two upper and lower setting circuit boards to through vertical motion drive assembly control upper circuit board vertical reciprocating motion about being in lower floor's circuit board top, thereby drive and insert the intermediate transfer ware that closes on locking end socket reciprocating motion in the slip end socket, realize structure dynamic continuity motion, finally realize the continuity test to radio frequency signal.

Drawings

The features and advantages of the present invention will be more clearly understood by reference to the accompanying drawings, which are illustrative and not to be construed as limiting the invention in any way, and in which:

FIG. 1 is a perspective view of an embodiment of the present invention;

fig. 2 is a side view of an embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 1 and 2, an embodiment of the present invention provides a testing apparatus for a radio frequency coaxial connector, including: the upper layer assembly is drawn by the vertical motion driving assembly to reciprocate vertically above the bottom layer assembly;

the bottom layer assembly comprises: the testing device comprises a bottom plate 11, a lower-layer circuit board 12 horizontally erected above the bottom plate 11, a sliding end socket 13 vertically installed on the lower-layer circuit board 12, and a lower-layer testing port connector 14 installed on one side of the lower-layer circuit board 12, wherein a circuit for conducting the sliding end socket 13 and the lower-layer testing port connector 14 is arranged on the lower-layer circuit board 12; the upper assembly includes: roof 21, the upper circuit board 22 of roof 21 below is erect to the level, vertical installation on upper circuit board 22 with the relative locking end socket 23 in sliding end socket 13 position, install the upper test port connector in upper circuit board 22 one side, displacement sensor, there is the circuit that switches on locking end socket 23 and upper test port connector on upper circuit board 22, vertical insertion has middle converter 24 on the locking end socket 23, sliding end socket 13 is inserted to the 24 other end of middle converter, the vertical motion drive assembly includes: four support screws 31 vertically erected at four corners of the lower layer circuit board 12, a bearing gear assembly 32 screwed into the support screws 31, and a stepping motor 33 erected on the top plate 21, the bearing gear assembly 32 comprising: a gear 322 screwed on the support screw 31, two bearings 321 sleeved on the support screw 31 above and below the gear 322, the inner ring of the bearing 321 is fixedly connected with the surface of the gear 322, the outer ring of the upper bearing 321 is fixedly connected with the top plate 21, the outer ring of the lower bearing 321 is fixedly connected with the upper circuit board 22, the output shaft gear 322 of the stepping motor 33 is in driving connection with the gear 322 through a toothed belt 34, the stepping motor 33 drives the gear 322 screwed on the support screw 31 to rotate through the toothed belt 34, the gear 322 rotates to drive the two bearings 321 connected with the gear 322, so as to drive the upper circuit board 22 and the top plate 21 to move up and down together, the four bearing gear assemblies 32 synchronously move up and down to drive the upper circuit board 22 and the top plate 21 fixed below and above to synchronously move up and down, so as to realize the change of the distance between the upper circuit board and the lower circuit board, when the bearing gear assemblies 32 synchronously rotate in the same direction, the threads on the support screw 31 are precisely meshed through the internal threads in the assemblies, the synchronous clockwise or anticlockwise rotation of the four bearing gear assemblies can be realized, and the rotary motion is converted into the axial linear motion through the precise thread pair.

The upper circuit board 22 and the lower circuit board 12 can be high frequency circuit boards. Be equipped with the installation position that the several supplied slip end socket 13 to install on lower floor's circuit board 12, the installation position includes: a mounting position coaxial with the locking terminal receptacle 23, and a plurality of mounting positions having an eccentric angle with the locking terminal receptacle 23, and the sliding terminal receptacle 13 on the right side in fig. 2 is mounted on the mounting position having an eccentric angle with the locking terminal receptacle 23. The different installation positions are arranged, so that continuity detection of radio frequency signals under the condition of different eccentric angles can be provided. The bottom layer assembly further comprises: a mounting table 15 with a tilted table top, such as the sliding end socket 13 on the left side of fig. 2, the sliding end socket 13 is mounted on the lower circuit board 12 via the mounting table 15. A mounting table 15 with a sloping table top is provided to provide continuity of the rf signal in the event of improper mounting of the sliding end socket 13. Above-mentioned two kinds of designs can improve the utility model discloses a suitability.

The utility model discloses the use as follows:

a mounting location is selected on the lower circuit board 12 to mount the sliding end socket 13 on the mounting location either directly or via a mounting table 15. The driving stepping motor 33 drives the top plate 21 and the upper layer circuit board 22 to move up and down, so that one end of the intermediate converter 24 inserted into the sliding end socket 13 reciprocates between an insertion initial position and an insertion limit position. The upper-layer test port connector, the lower-layer test port connector 14 and the displacement sensor are connected into the PLC, the test port connector provides level signals, the displacement sensor provides displacement signals, the PLC analyzes and processes the displacement signals and test data of the vector network analyzer, and a relation curve between the level signals and displacement is output. Meanwhile, the displacement signal can be converted into a pulse signal to control the stepping motor 33 according to the displacement signal, so that the step loss phenomenon is prevented, and the control precision is improved.

Different from traditional sectional test method, the utility model discloses a turn into the rotary motion of step motor 33 and test the linear motion between the piece to realize being surveyed the continuous change of the inside electrical structure developments of piece, and connect it as the radio frequency signal test system of a dynamic test in succession through test circuit board and test port. Meanwhile, the displacement can be accurately controlled through the PLC control system, and test electrical results under different displacements can be continuously generated. The utility model discloses convenient effective and measure accurate test platform system provides outstanding solution for the development of the miniaturized product of new generation 5G application and test, satisfies the development and test of various new generation inter-plate connector subassembly and high frequency circuit board completely.

Although the embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the invention, and such modifications and variations fall within the scope defined by the appended claims.

Claims

1. A device for testing a radio frequency coaxial connector, comprising: the device comprises a bottom layer assembly, an upper layer assembly and a vertical motion driving assembly, wherein the upper layer assembly is drawn by the vertical motion driving assembly to reciprocate vertically above the bottom layer assembly;

2. The apparatus for testing a radio frequency coaxial connector of claim 1, wherein the vertical motion drive assembly comprises: the vertical four support screw rods that erect lower floor's circuit board four corners, the screw in is in support the bearing gear subassembly on the screw rod, erect step motor on the roof, the bearing gear subassembly includes: the gear is screwed on the support screw rod, the bearing is sleeved on the support screw rod, the inner ring of the bearing is fixedly connected with the surface of the gear, the outer ring of the bearing is fixedly connected with the top plate, and the output shaft gear of the stepping motor is in driving connection with the gear through a toothed belt.

3. The apparatus for testing an rf coaxial connector of claim 1, wherein the lower circuit board has a plurality of mounting locations for mounting the sliding-end socket, the mounting locations comprising: the locking end socket comprises a mounting position coaxial with the locking end socket and a plurality of mounting positions with eccentric angles stored in the locking end socket.

4. The apparatus for testing a radio frequency coaxial connector as defined in any one of claims 1-3, wherein the bottom layer assembly further comprises: the sliding end socket is arranged on the lower layer circuit board through the mounting table.