CN219456241U

CN219456241U - Test bench for electromagnetic compatibility test

Info

Publication number: CN219456241U
Application number: CN202320119505.4U
Authority: CN
Inventors: 王国栋
Original assignee: Lunan Testing Technology Shanghai Co ltd
Current assignee: Lunan Testing Technology Shanghai Co ltd
Priority date: 2023-02-06
Filing date: 2023-02-06
Publication date: 2023-08-01
Anticipated expiration: 2033-02-06

Abstract

The utility model relates to the technical field of electromagnetic compatibility testing devices and discloses a test bench for an electromagnetic compatibility test, which comprises a base, wherein a first rotary power piece is fixedly arranged on the base, the tail end of an output shaft of the first rotary power piece is fixedly connected with a screw rod, a moving plate is rotatably arranged on the screw rod, one side surface of the moving plate is in sliding contact with the base, a first telescopic piece which is opposite to the base is fixedly arranged on the surface, far away from the base, of the moving plate, a top plate is fixedly arranged at the output end of the first telescopic piece, a bracket with an opening which is opposite to the base and of a U-shaped structure is rotatably arranged on the top plate, and a clamping assembly is arranged on the bracket. Compared with the prior art, the utility model has the beneficial effects that: the method realizes dynamic and static electromagnetic compatibility test, realizes multi-degree-of-freedom electromagnetic compatibility test, improves flexibility and comprehensiveness of the object during electromagnetic compatibility test, improves accuracy of electromagnetic compatibility test, and is beneficial to use.

Description

Test bench for electromagnetic compatibility test

Technical Field

The utility model relates to the technical field of electromagnetic compatibility testing devices, in particular to a test bench for an electromagnetic compatibility test.

Background

Electromagnetic compatibility testing refers to the ability of a device or system to operate as desired in its electromagnetic environment without intolerable electromagnetic interference to any device in its environment, and to conduct compatibility prediction and evaluation of EMC to discover possible electromagnetic interference early and to take necessary suppression and protection measures to ensure electromagnetic compatibility of the system.

The static discharge is also one of EMC electromagnetic interference, and most of the existing test tables are used for only placing objects at specified positions for testing, so that the relative positions and angles between the objects and the test components are inconvenient to adjust, the flexibility of the objects in electromagnetic compatibility testing is low, the obtained detection data are incomplete, and the accuracy of the test data is reduced.

Disclosure of Invention

The utility model aims to provide a test board for electromagnetic compatibility test, which solves the problems in the background technology.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

the utility model provides an electromagnetic compatibility test is with testboard, includes the base, fixed mounting has first rotary power spare on the base, the terminal fixedly connected with lead screw of first rotary power spare output shaft, rotates on the lead screw and installs the movable plate, movable plate one side surface and base sliding contact and movable plate keep away from the first extensible member of base fixed surface mounting of base, first extensible member output fixed mounting has the roof, rotates the support of installing the U type structure that the opening was facing away from the base on the roof, is provided with the clamping assembly on the support, fixed mounting has the mounting bracket of the U type structure of opening directional base on the base, and mounting bracket horizontal segment middle part fixed mounting has the second rotary power spare, and second rotary power spare output fixed mounting has the rotating turret of frame structure, slidable mounting has the slider on the rotating turret, and the slider is close to the surface fixed mounting of base has the second extensible member of directional base, and second extensible member output fixed mounting has the mounting panel, the surface fixed mounting that the mounting panel is close to the base has the static discharge machine, fixed mounting has the rifle on the static discharge machine.

As a further scheme of the utility model: threaded connection has fixed threaded rod on the roof, and fixed threaded rod runs through the roof and distributes along first extensible member length direction, and fixed threaded rod tip is contradicted with the support.

As a further scheme of the utility model: the side surface of the sliding block is in threaded connection with a fixing screw which is matched with the rotating frame for use and is used for fixing the sliding block.

As a further scheme of the utility model: the clamping assembly comprises clamping threaded rods, the clamping threaded rods are provided with multiple groups and are arranged on the side walls of the support in a threaded mode, and the clamping threaded rods penetrate through the side walls of the support and are fixedly arranged on the side plates at one ends of the support.

As a further scheme of the utility model: the side plate is provided with a plurality of groups of sliding rods penetrating through the side plate and distributed along the length direction of the clamping threaded rod, one ends of the sliding rods, far away from the side walls of the support, are fixedly provided with clamping plates together, the clamping plates are fixedly provided with elastic pieces distributed around the sliding rods, and one ends of the elastic pieces, far away from the clamping plates, are fixedly connected with the side plate.

Compared with the prior art, the utility model has the beneficial effects that: the method realizes dynamic and static electromagnetic compatibility test, realizes multi-degree-of-freedom electromagnetic compatibility test, improves flexibility and comprehensiveness of the object during electromagnetic compatibility test, improves accuracy of electromagnetic compatibility test, and is beneficial to use.

Drawings

Fig. 1 is a front view of a test stand for electromagnetic compatibility testing.

Fig. 2 is an enlarged view at A1 in fig. 1.

Fig. 3 is a top view of a holder in a test stand for electromagnetic compatibility testing.

Wherein: 1. a base; 2. a first motor; 3. a screw rod; 4. a moving plate; 5. a first electric telescopic rod; 6. a top plate; 7. a bracket; 8. fixing a threaded rod; 9. clamping the threaded rod; 10. a side plate; 11. a mounting frame; 12. a second motor; 13. a rotating frame; 14. a slide block; 15. a fixing screw; 16. a second electric telescopic rod; 17. a mounting plate; 18. an electrostatic discharge machine; 19. a discharge gun; 20. a slide bar; 21. a clamping plate; 22. a spring; 23. and a clamping assembly.

Detailed Description

It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be combined with each other.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured 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 a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first", "a second", etc. may explicitly or implicitly include one or more such feature. In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art in a specific case.

The utility model will be described in detail below with reference to the drawings in connection with embodiments.

Referring to fig. 1-3, a structure diagram of a test bench for electromagnetic compatibility test provided by an embodiment of the utility model includes a base 1, a first rotating power member is fixedly installed on the base 1, a screw rod 3 is fixedly connected to an end of an output shaft of the first rotating power member, a moving plate 4 is rotatably installed on the screw rod 3, a sliding block 14 is slidably installed on one side surface of the moving plate 4 and the base 1, a first telescopic member facing away from the base 1 is fixedly installed on a surface of the moving plate 4 far away from the base 1, a top plate 6 is fixedly installed at an output end of the first telescopic member, a bracket 7 with an opening facing away from the base 1 and having a U-shaped structure is rotatably installed on the top plate 6, a clamping assembly 23 is provided on the bracket 7, a mounting frame 11 with an opening pointing to the U-shaped structure of the base 1 is fixedly installed on the base 1, a second rotating power member is fixedly installed in a middle part of a horizontal section of the mounting frame 11, a rotating frame 13 with a sliding block 14 is fixedly installed at an output end of the second telescopic member, a second telescopic member pointing towards the base 1 is fixedly installed on a surface of the base 13, a motor 17 is fixedly installed at an output end of the second telescopic member, a motor 17 is installed at a surface of the mounting plate 17 near the base 1, and a static discharge device 18 is fixedly installed on a static discharge device 18 is installed near the surface of the motor 1.

The fixed threaded rod 8 is connected to the top plate 6 in a threaded mode, the fixed threaded rod 8 penetrates through the top plate 6 and is distributed along the length direction of the first telescopic piece, and the end portion of the fixed threaded rod 8 is abutted to the support 7.

The side surface of the slide block 14 is connected with a fixing screw 15 which is matched with the rotating frame 13 and used for fixing the slide block 14.

In practical application, the article to be tested is placed in the bracket 7 and clamped by the clamping assembly 23, so that the article is fixed on the bracket 7, when the length direction of the rotating frame 13 is the same as the length direction of the screw rod 3, the adjusting slide block 14 is moved to one end of the rotating frame 13 and fixed by the fixing screw 15, then the screw rod 3 is driven to rotate by the first rotating power piece, the screw rod 3 rotates to drive the moving plate 4 to transversely move, thereby adjusting the distance between the tested article and the electrostatic discharge machine 18, the rotating bracket 7 drives the article to rotate, thereby changing the placing angle of the article, then the bracket 7 is fixed by the fixed threaded rod 8, static electricity is released by the electrostatic discharge machine 18 and the discharge gun 19 after the adjustment is completed, and at the moment, the electromagnetic compatibility of the article is detected, simultaneously, the heights of the bracket 7 and the mounting plate 17 are respectively controlled through the first telescopic piece and the second telescopic piece, so that the relative heights between the electrostatic discharge machine 18 and the object can be adjusted, the electromagnetic compatibility of the electrostatic discharge machine 18 and the object at different heights can be tested, the flexibility and the comprehensiveness of the electromagnetic compatibility test of the object are improved, the rotating frame 13 is driven to rotate through the second rotating power piece, the rotating frame 13 drives the electrostatic discharge machine 18 to rotate around the tested object, the positions of the sliding block 14 and the moving plate 4 are matched, the electrostatic discharge machine 18 can carry out electrostatic discharge at different heights with different positions or distances, the rotating frame 13 rotates or is in a static state, the electromagnetic compatibility test can be recorded, the dynamic and static electromagnetic compatibility test is realized, the electromagnetic compatibility test with multiple degrees of freedom is realized, the comprehensiveness and the accuracy of the electromagnetic compatibility test are improved, is beneficial to use.

In the example of the present utility model, the first rotary power member and the second rotary power member are the first motor 2 and the second motor 12 respectively, and of course, other components capable of outputting rotary power, such as a hydraulic motor, may also be used, the first motor 2 drives the moving plate 4 to move so as to change the position of the object, the second motor 12 drives the rotating frame 13 to rotate, thereby changing the orientation of the electrostatic discharge machine 18, the first telescopic member and the second telescopic member are the first electric telescopic rod 5 and the second electric telescopic rod 16 respectively, and of course, other components capable of actively performing length conversion, such as a hydraulic cylinder, may also be used, and the first electric telescopic rod 5 and the second electric telescopic rod 16 respectively drive the bracket 7 and the mounting plate 17 to move, thereby adjusting the relative heights of the electrostatic discharge machine 18 and the object.

As shown in fig. 1-3, as a preferred embodiment of the present utility model, the clamping assembly 23 includes a clamping threaded rod 9, the clamping threaded rod 9 is provided with a plurality of groups and is mounted on the side wall of the bracket 7 in a threaded manner, the clamping threaded rod 9 penetrates through the side wall of the bracket 7, and a side plate 10 is fixedly mounted at one end of the clamping threaded rod 9 located in the bracket 7.

The side plate 10 is provided with a plurality of groups of sliding rods 20 penetrating through the side plate 10 and distributed along the length direction of the clamping threaded rod 9, one ends of the sliding rods 20, far away from the side wall of the bracket 7, are fixedly provided with clamping plates 21 together, the clamping plates 21 are fixedly provided with elastic pieces distributed around the sliding rods 20, and one ends of the elastic pieces, far away from the clamping plates 21, are fixedly connected with the side plate 10.

The embodiment of the utility model provides a when practical application, place the article that will wait to detect in support 7, thereafter rotate centre gripping threaded rod 9, thereby centre gripping threaded rod 9 drives curb plate 10 to move inwards and moves and make splint 21 and one side surface contact of article, thereafter rotate centre gripping threaded rod 9 of opposite side, thereby make splint 21 and the another side contact of article of opposite side, thereafter continue to rotate a set of centre gripping threaded rod 9, thereby make curb plate 10 compress the elastic component, and then apply pressure to splint 21 through the elastic component compression and make splint 21 can the centre gripping article, thereby realize the fixed of article, produce fixed pressure through the elastic component deformation, avoid the centre gripping pressure great lead to the article to damage, be favorable to using.

In one example of the present utility model, the elastic member is a spring 22, and may be other elastic members such as a spring ball, and the deformation of the spring 22 generates the pressure for clamping the object.

While the preferred embodiments of the present patent have been described in detail, the present patent is not limited to the above embodiments, and various changes may be made without departing from the spirit of the present patent within the knowledge of those skilled in the art.

Claims

1. The utility model provides an electromagnetic compatibility test is with testboard, includes the base, a serial communication port, fixed mounting has first rotary power spare on the base, and first rotary power spare output shaft end fixedly connected with lead screw, rotates on the lead screw and installs the movable plate, movable plate one side surface and base sliding contact and movable plate keep away from the first extensible member of base fixed mounting back to the base, first extensible member output fixed mounting has the roof, rotates the support of installing the U type structure that the opening was facing away from the base on the roof, is provided with the clamping assembly on the support, fixed mounting has the mounting bracket of the U type structure that the opening was directional to the base on the base, and mounting bracket horizontal segment middle part fixed mounting has second rotary power spare, and second rotary power spare output fixed mounting has the rotating turret of frame structure, and slidable mounting has the slider on the rotating turret, and the slider is close to the second extensible member output fixed mounting has the mounting panel of base, the surface fixed mounting that the mounting panel is close to the base has the static discharge machine, and fixed mounting has the rifle on the static discharge machine.

2. The test bench for electromagnetic compatibility test according to claim 1, wherein the top plate is screwed with a fixed threaded rod, the fixed threaded rod penetrates through the top plate and is distributed along the length direction of the first telescopic member, and the end of the fixed threaded rod is abutted against the support.

3. The test stand for electromagnetic compatibility test of claim 1, wherein the side surface of the slider is screwed with a fixing screw for fixing the slider, which is used in cooperation with a turret.

4. The test stand for electromagnetic compatibility test according to claim 1, wherein the clamping assembly comprises a clamping threaded rod, a plurality of groups of clamping threaded rods are arranged on the side wall of the bracket in a threaded manner, and a side plate is fixedly arranged at one end of the clamping threaded rod, which penetrates through the side wall of the bracket and is located in the bracket.

5. The test bench for electromagnetic compatibility test according to claim 4, wherein a plurality of groups of sliding rods penetrating through the side plates and distributed along the length direction of the clamping threaded rods are slidably mounted on the side plates, clamping plates are fixedly mounted at one ends of the sliding rods, which are far away from the side walls of the support, respectively, elastic pieces distributed around the sliding rods are fixedly mounted on the clamping plates, and one ends of the elastic pieces, which are far away from the clamping plates, are fixedly connected with the side plates.