CN216979184U

CN216979184U - Device capable of automatically switching test antenna

Info

Publication number: CN216979184U
Application number: CN202122892259.XU
Authority: CN
Inventors: 傅锦华; 李旭; 贾晋; 吴小珊
Original assignee: Chongqing Qingyan Science And Technology Automobile Intelligent Technology Research Institute Co ltd; Chongqing Qingyan Technology Electronic Technology Co ltd; Chongqing University of Technology
Current assignee: Chongqing Qingyan Science And Technology Automobile Intelligent Technology Research Institute Co ltd; Chongqing Qingyan Technology Electronic Technology Co ltd; Chongqing University of Technology
Priority date: 2021-11-19
Filing date: 2021-11-19
Publication date: 2022-07-15
Anticipated expiration: 2031-11-19

Abstract

The utility model relates to the technical field of electromagnetic compatibility testing, and particularly discloses a device capable of automatically switching a testing antenna, which comprises a testing bracket, a rotating mechanism and an antenna assembly, wherein the testing bracket is arranged on the testing bracket; the upper end of the test support is provided with an installation table, the rotating mechanism comprises a rotating support, and the antenna assembly comprises a horn antenna, a biconical antenna and a logarithmic antenna which are arranged on the periphery of the rotating part at intervals; the utility model realizes the switching of the test antennas by intensively installing four sections of antennas commonly used for radiation emission test on the rotary bracket; moreover, each antenna can be controlled to move in the vertical and horizontal directions, so that the test convenience is improved, the test antennas are prevented from being replaced and moved in a darkroom for multiple times, the connection times of connecting cables are reduced, and the service life of the cables is prolonged; the antenna damage caused by misoperation when an operator replaces or moves the test antenna is greatly reduced, and the test efficiency is integrally improved.

Description

Device capable of automatically switching test antenna

Technical Field

The utility model relates to the technical field of electromagnetic compatibility testing, in particular to a device capable of automatically switching a testing antenna.

Background

At present, the problems of frequent antenna replacement and low test efficiency exist in a plurality of electromagnetic compatibility tests, and each test needs to enter a darkroom for antenna replacement once for one frequency band, wherein the antenna replacement comprises re-measuring the distance between the antenna and a tested object and performing cable connection on the newly replaced antenna, so that the test efficiency is low, and the antenna can be damaged by frequently replacing the antenna and connecting the cable for a plurality of times.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects in the prior art, the utility model aims to provide a device capable of automatically switching to test an antenna, which can solve the problems that in the prior art, the antenna is frequently replaced, a cable is connected for many times, the antenna is damaged due to frequent movement of the antenna, the test efficiency is low and the like.

The technical scheme adopted by the utility model is as follows: a device capable of automatically switching test antennas comprises a test bracket, a rotating mechanism and an antenna assembly; the upper end of the test bracket is provided with an installation platform, and the installation platform is provided with an installation hole; the test device comprises a test support, a rotating part and a rotating mechanism, wherein the rotating mechanism comprises a rotating support, one end of the rotating support is arranged in the mounting hole, the other end of the rotating support is provided with the rotating part, and a first rotating driving module for driving the rotating part to rotate circumferentially is arranged in the test support; the antenna module includes horn antenna, biconical antenna and the logarithmic antenna of interval arrangement in the rotating part periphery, the rotating part periphery still is equipped with drive horn antenna, biconical antenna and logarithmic antenna and rotates the second rotary driving module to level or vertical direction, the outer terminal surface of rotating part is equipped with the rod antenna of arranging along test support axis.

In the technical scheme, four sections of commonly used antennas for radiation emission test, such as a horn antenna, a biconical antenna, a logarithmic antenna and a rod antenna, are intensively mounted on a rotary support positioned at the upper end of a test support, and the rotary support is driven to rotate by a first rotary driving module, so that the test antennas are switched; the second rotary driving module can be controlled to control the antennas to move in the vertical and horizontal directions, so that the test convenience is improved, the test antennas are prevented from being replaced and moved in a darkroom for multiple times, the connection times of connecting cables are reduced, and the service life of the cables is prolonged; the antenna damage caused by misoperation when an operator replaces or moves the test antenna is greatly reduced, and the test efficiency is integrally improved.

Further, the mount table periphery is equipped with the radial antenna holding tank of arranging of mount table, antenna holding tank and mounting hole intercommunication.

Further, the horn antenna, the biconical antenna and the logarithmic antenna are arranged at an adjacent interval angle of 120 degrees.

Furthermore, be equipped with the interface of unifying more on the rotating part, horn antenna, biconical antenna, the link on logarithmic antenna and the pole antenna is connected with the interface of unifying more electrically conductive.

Furthermore, a coaxial cable jack is further arranged on the all-in-one interface, and a test cable is inserted in the coaxial cable jack.

Furthermore, shielding cases are arranged outside the first rotary driving module and the second rotary driving module.

Furthermore, the lower end of the test support is provided with a detachable handheld portion, and the surface of the handheld portion is subjected to anti-skid treatment.

The utility model has the beneficial effects that: the four sections of antennas commonly used for radiation emission testing are intensively arranged on the rotary support, and the rotary support is driven to rotate by the first rotary driving module, so that the testing antennas are switched; the second rotary driving module can be controlled to control the antennas to move in the vertical and horizontal directions, so that the test convenience is improved, the test antennas are prevented from being replaced and moved in a darkroom for multiple times, the connection times of connecting cables are reduced, and the service life of the cables is prolonged; the antenna damage caused by misoperation when an operator replaces and moves the test antenna is greatly reduced, and the test efficiency is integrally improved; has high practical value.

Drawings

In order to more clearly illustrate the detailed description of the utility model or the technical solutions in the prior art, the drawings that are needed in the detailed description of the utility model or the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.

Fig. 1 is a side view of an apparatus capable of automatically switching a test antenna according to an embodiment of the present invention.

Fig. 2 is a top view of an apparatus capable of automatically switching a test antenna according to an embodiment of the present invention.

Reference numerals: the test fixture comprises a test fixture 100, a mounting table 110, an antenna receiving groove 111, a rotating fixture 200, a rotating part 210, a first rotary driving module 300, a horn antenna 400, a biconical antenna 500, a logarithmic antenna 600, a second rotary driving module 700, a rod antenna 800, a handheld part 900 and an all-in-one interface 1000.

Detailed Description

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.

It is to be noted that, unless otherwise specified, technical or scientific terms used herein shall have the ordinary meaning as understood by those skilled in the art to which the utility model pertains.

As shown in fig. 1 and fig. 2, an embodiment of the present invention provides an apparatus capable of automatically switching a test antenna, including a test rack 100, a rotation mechanism, and an antenna assembly; the upper end of the test bracket 100 is provided with an installation platform 110, and the installation platform 110 is provided with an installation hole; the rotating mechanism comprises a rotating bracket 200, one end of the rotating bracket 200 is installed in the installation hole, the other end of the rotating bracket is provided with a rotating part 210, and a first rotating driving module 300 for driving the rotating part 210 to rotate circumferentially is arranged in the test bracket 100; the antenna assembly comprises a horn antenna 400, a bicone antenna 500 and a logarithmic antenna 600 which are arranged on the periphery of a rotating portion 210 at intervals, a second rotary driving module 700 for driving the horn antenna 400, the bicone antenna 500 and the logarithmic antenna 600 to rotate to the horizontal direction or the vertical direction is further arranged on the periphery of the rotating portion 210, and a rod antenna 800 arranged along the axis of the test support 100 is arranged on the outer end face of the rotating portion 210.

As shown in fig. 1 and fig. 2, with the above arrangement, the present embodiment installs four sections of antennas commonly used in radiation emission test, such as a horn antenna 400, a biconical antenna 500, a logarithmic antenna 600, and a rod antenna 800, on the rotary bracket 200 at the upper end of the test bracket 100 in a centralized manner, and the first rotary driving module 300 drives the rotary bracket 200 to rotate, so as to implement switching of the test antennas; the second rotary driving module 700 can be controlled to control all the antennas to move in the vertical and horizontal directions, so that the test convenience is improved, the test antennas are prevented from being replaced and moved in a darkroom for multiple times, the connection times of connecting cables are reduced, and the service life of the cables is prolonged; in this embodiment, the first rotary driving module 300 and the second rotary driving module 700 preferably adopt a motor structure, and the specific model and specification are selected according to the requirement, which is not described herein again. In order to avoid interference with the test, the present embodiment provides a shield case outside the first and second rotary driving modules 300 and 700. The shield can shield the first rotary driving module 300 and the second rotary driving module 700, and the test result is prevented from being influenced.

As described above, since the horn antenna 400, the bicone antenna 500, and the logarithmic antenna 600 need to be rotated in the vertical and horizontal directions, the present embodiment is provided with the antenna receiving grooves 111 arranged in the radial direction of the mounting table 110 at the outer circumference of the mounting table 110, and the antenna receiving grooves 111 communicate with the mounting holes. Like this, horn antenna 400, biconical antenna 500, logarithmic antenna 600 can rotate in antenna holding tank 111 when adjusting to play the effect of stepping down, improve the convenience of angle modulation.

As shown in fig. 1 and 2, in order to make the antenna have the same distance from the object to be tested when the antenna is switched to a corresponding one during the test, the horn antenna 400, the biconical antenna 500 and the logarithmic antenna 600 in this embodiment are adjacently spaced at an angle of 120 degrees. The distance to the measured object is equal when the device rotates to switch the antennas.

As shown in fig. 1 and fig. 2, in the testing process, a wire structure is required to be connected, in this embodiment, an all-in-one interface 1000 is disposed on the rotating portion 210, and the connection terminals on the horn antenna 400, the biconical antenna 500, the logarithmic antenna 600, and the rod antenna 800 are electrically connected to the all-in-one interface 1000. The all-in-one interface 1000 is further provided with a coaxial cable jack, and a test cable is inserted into the coaxial cable jack. Like this, all-in-one interface 1000 can be connected with a corresponding antenna to the test cable can be connected to the coaxial cable jack, thereby realizes the test line connection installation, improves the convenience that the equipment fixing used.

As shown in fig. 1 and fig. 2, in order to facilitate the use of the tester, in the embodiment, a detachable handheld portion 900 is disposed at the lower end of the test rack 100, and the surface of the handheld portion 900 is subjected to anti-slip treatment. Thus, the anti-slip handheld portion 900 is more convenient for a technician to use the anti-slip handheld portion. This embodiment is when using, and the tester is in and carries out simple operation through controlgear outside the darkroom, just can control the darkroom in and realize freely switching operation to a corresponding test antenna, avoids operating personnel to stay the misoperation that appears when changing, moving test antenna and leads to the antenna to damage to the efficiency of test has wholly been promoted.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the utility model has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention, and they should be construed as being included in the following claims and description.

Claims

1. A device capable of automatically switching a test antenna is characterized in that; comprises a test support (100), a rotating mechanism and an antenna assembly; the upper end of the test support (100) is provided with an installation table (110), and the installation table (110) is provided with an installation hole; the rotating mechanism comprises a rotating support (200), one end of the rotating support (200) is installed in the installation hole, the other end of the rotating support is provided with a rotating part (210), and a first rotating driving module (300) for driving the rotating part (210) to rotate circumferentially is arranged in the test support (100); the antenna module includes horn antenna (400), biconical antenna (500) and logarithmic antenna (600) that the interval was arranged in rotating part (210) periphery, rotating part (210) periphery still is equipped with drive horn antenna (400), biconical antenna (500) and logarithmic antenna (600) and rotates second rotary driving module (700) to level or vertical direction, the outer terminal surface of rotating part (210) is equipped with pole antenna (800) of arranging along test stand (100) axis.

2. The apparatus for automatically switchable testing antenna of claim 1, wherein; the antenna mounting structure is characterized in that an antenna accommodating groove (111) radially arranged along the mounting platform (110) is formed in the periphery of the mounting platform (110), and the antenna accommodating groove (111) is communicated with the mounting hole.

3. The apparatus for automatically switchable testing antenna of claim 1, wherein; the horn antenna (400), the biconical antenna (500) and the logarithmic antenna (600) are arranged at an interval angle of 120 degrees adjacent to each other.

4. The apparatus for automatically switchable testing antenna of claim 1, wherein; an all-in-one interface (1000) is arranged on the rotating portion (210), and the connecting ends on the horn antenna (400), the biconical antenna (500), the logarithmic antenna (600) and the rod antenna (800) are in conductive connection with the all-in-one interface (1000).

5. The apparatus for automatically switchable testing antenna according to claim 4, characterized in that; the all-in-one interface (1000) is further provided with a coaxial cable jack, and a test cable is inserted in the coaxial cable jack.

6. The apparatus for automatically switchable testing antenna of claim 1, wherein; and shielding cases are arranged outside the first rotary driving module (300) and the second rotary driving module (700).

7. The apparatus for automatically switching a test antenna according to claim 1; the test support (100) lower extreme is equipped with detachable handheld portion (900), handheld portion (900) surface is done anti-skidding and is handled.