Electromagnetic compatibility test placing rack

Abstract

The utility model discloses an electromagnetic compatibility test placing rack, which belongs to the technical field of test auxiliary appliances, and comprises a support frame, an adjusting frame, a first rotating assembly and a second rotating assembly, and the adjusting frame and the support frame are rotatably connected around a transversely extending axis; the first rotating assembly is in transmission connection with the adjusting frame so as to drive the adjusting frame to rotate forwards or reversely relative to the supporting frame. The second rotating assembly is connected with the adjusting frame and used for being connected with the testing equipment, the second rotating assembly is configured to drive the testing equipment to rotate forwards or reversely around the longitudinally-extending axis, multi-direction angle adjustment of the testing device can be automatically achieved, and comprehensiveness and accuracy of electromagnetic compatibility testing can be improved.

Description

Technical Field

[0001] This utility model relates to the field of testing auxiliary equipment technology, and in particular to an electromagnetic compatibility testing rack. Background Technology

[0002] In the process of electromagnetic compatibility testing, in order to ensure the isolation between the test environment and the monitoring environment, the test equipment is usually placed in a shielded room. In order to ensure the comprehensiveness and accuracy of the test results, it is necessary to adjust the orientation angle of the test equipment to simulate the electromagnetic fields of different directions and angles that the test equipment may encounter in the real environment.

[0003] In related technologies, the racks used for electromagnetic compatibility testing generally do not support multi-directional angle adjustment, which cannot meet the needs of multi-angle testing, and require manual adjustment by staff, which is inconvenient. Utility Model Content

[0004] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes an electromagnetic compatibility (EMC) test stand that can automatically achieve multi-directional angle adjustment of the test device, thereby improving the comprehensiveness and accuracy of EMC testing.

[0005] An electromagnetic compatibility test stand according to an embodiment of the present invention includes: a support frame; an adjustment frame rotatably connected to the support frame about a laterally extending axis; a first rotating component drivingly connected to the adjustment frame to drive the adjustment frame to rotate forward or in the opposite direction relative to the support frame; and a second rotating component connected to the adjustment frame for connecting to a test device, the second rotating component being configured to drive the test device to rotate forward or in the opposite direction about a longitudinally extending axis.

[0006] The electromagnetic compatibility (EMC) test stand according to the present invention has at least the following advantages: the adjustment frame and the support frame are rotatably connected, the support frame provides support for the connection of the adjustment frame, the second rotating component is connected to the adjustment frame, and the second rotating component is used to connect to the test equipment, that is, to connect the test equipment to the adjustment frame. The second rotating component is configured to drive the test equipment to rotate relative to the adjustment frame about a longitudinally extending axis in the forward or reverse direction. The EMC test stand also includes a first rotating component, which is drivenly connected to the adjustment frame to drive the adjustment frame to rotate relative to the support frame about a laterally extending axis in the forward or reverse direction. That is, when performing EMC testing, the EMC test stand can drive the test equipment to rotate about the laterally and longitudinally extending axes through the first and second rotating components. By adjusting the multi-directional angle of the test equipment, it can simulate electromagnetic fields of different directions and angles that the test equipment may encounter in the real environment, thereby improving the comprehensiveness and accuracy of the test results. Moreover, the EMC test stand can achieve automated angle adjustment through the first and second rotating components, making it simpler and more convenient to use.

[0007] According to some embodiments of the present invention, the electromagnetic compatibility test stand further includes a linear drive component and a clamp, and the second rotating component includes a first rotating motor and a rotating seat. The first rotating motor is connected to the adjustment frame and is drivenly connected to the rotating seat to drive the rotating seat to rotate forward or backward about a longitudinally extending axis. The linear drive component is connected to the adjustment frame and is rotatably connected to the clamp, and the linear drive component is configured to drive the clamp to move closer to or further away from the rotating seat.

[0008] The electromagnetic compatibility test stand also includes a linear drive component and a clamp. The linear drive component is connected to the adjustment frame and rotatably connected to the clamp. The second rotating component includes a first rotary motor and a rotating seat. The first rotary motor is connected to the adjustment frame and drively connected to the rotating seat. The linear drive component is configured to drive the clamp closer to or further away from the rotating seat. In use, the user can drive the clamp away from the rotating seat through the linear drive component, then place the test equipment between the clamp and the rotating seat, and drive the clamp closer to the rotating seat through the linear drive component. The clamp and the rotating seat together hold the test equipment to achieve the connection between the adjustment frame and the test equipment. The first rotary motor is drively connected to the rotating seat to drive the rotating seat to rotate forward or backward around the longitudinally extending axis, thereby driving the test equipment to rotate relative to the adjustment frame to achieve angle adjustment of the test equipment around the longitudinally extending axis. This simulates the electromagnetic fields that the test equipment may encounter in different directions and angles in a real environment, thereby improving the comprehensiveness and accuracy of the test results, achieving automated angle adjustment, and making it simpler and more convenient to use.

[0009] According to some embodiments of this utility model, the linear drive component includes a first lead screw, an adjusting bracket having a first screw hole, the first screw hole being threadedly connected to the first lead screw, and a clamping seat connected to one end of the first lead screw near the rotating seat; and / or

[0010] The opposing surfaces of the clamp and the rotating seat are respectively provided with buffer pads.

[0011] Optionally, the linear drive component includes a first lead screw, an adjusting rod with a first threaded hole, and a clamp connected to the first threaded hole. The clamp is connected to the end of the first lead screw near the rotating seat. The user can rotate the first lead screw in either the forward or reverse direction, and through the threaded connection between the first lead screw and the first threaded hole, drive the first lead screw to extend or retract along the axis of the first threaded hole, thereby driving the clamp to move closer to or away from the rotating seat, so as to achieve contact or separation between the clamp and the testing equipment. Optionally, the opposing surfaces of the clamp and the rotating seat are respectively provided with buffer pads. The contact between the buffer pads and the testing equipment helps to improve the connection stability between the clamp and the rotating seat and the testing equipment. The deformation of the buffer pads can effectively protect the testing equipment and reduce the risk of damage to the testing equipment due to pressure.

[0012] According to some embodiments of the present invention, the upper end of the support frame is provided with two side plates, the adjustment frame is disposed between the two side plates, the two sides of the adjustment frame are rotatably connected to the two side plates respectively, and the first rotating component passes through one of the side plates and is connected to the adjustment frame in a transmission manner.

[0013] Specifically, the upper end of the support frame has two side plates, and the adjustment frame is located between the two side plates. The two sides of the adjustment frame are rotatably connected to the two side plates respectively, so as to realize the rotatable connection between the adjustment frame and the support frame along the horizontally extending axis. The first rotating component passes through one of the side plates and is connected to the adjustment frame in a transmission manner. The operation of the first rotating component can drive the adjustment frame to rotate around its rotatable connection point with the side plate, so as to realize the rotation of the test equipment around the horizontally extending axis, thereby simulating the electromagnetic fields of different directions and angles that the test equipment may encounter in the real environment, so as to improve the comprehensiveness and accuracy of the test results, realize automated angle adjustment, and make it simpler and more convenient to use.

[0014] According to some embodiments of the present invention, the electromagnetic compatibility test rack further includes a first frame and a transverse drive assembly, the transverse drive assembly being configured to drive the support frame to slide laterally back and forth along the first frame.

[0015] Specifically, the lateral movement drive assembly is configured to drive the support frame to slide laterally back and forth along the first frame, while the test equipment is connected to the adjustment frame. That is, in electromagnetic compatibility testing, the test equipment can be driven to move laterally by the driving action of the lateral movement drive assembly. In conjunction with the rotation angle adjustment of the first rotation assembly and the second rotation assembly, multi-directional angle adjustment of the test device can be automatically realized, which is beneficial to improving the comprehensiveness and accuracy of electromagnetic compatibility testing.

[0016] According to some embodiments of the present invention, the transverse drive assembly includes a second rotary motor, a second lead screw, and a rotating wheel. The second lead screw is connected to a first frame, the rotating wheel has a second threaded hole for threaded connection with the second lead screw, the rotating wheel is rotatably connected to a support frame, and the second rotary motor is connected to the support frame and has a transmission connection with the rotating wheel to drive the rotating wheel to rotate relative to the second lead screw in a forward or reverse direction; and / or,

[0017] The first unit is equipped with a slide rail, and the support frame is slidably connected to the slide rail.

[0018] Optionally, the lateral movement drive assembly includes a second rotary motor, a second lead screw, and a rotating wheel. The second lead screw is connected to the first frame, and the rotating wheel is rotatably connected to the support frame. The rotating wheel has a second threaded hole that is threadedly connected to the second lead screw. The second rotary motor is connected to the support frame and is driven by the rotating wheel. The second rotary motor can drive the rotating wheel to rotate in the forward or reverse direction relative to the second lead screw, so that the support frame reciprocates along the second lead screw, thereby driving the lateral displacement of the test equipment. This can automatically realize multi-directional angle adjustment of the test device, which is beneficial to improving the comprehensiveness and accuracy of electromagnetic compatibility testing. Optionally, the first frame is provided with a slide rail, and the support frame is slidably connected to the slide rail. Through the mutual limiting of the slide rail and the support frame, the stability of the lateral movement of the support frame relative to the first frame is improved.

[0019] According to some embodiments of the present invention, the electromagnetic compatibility test rack further includes a second frame and a lifting drive assembly. The first frame and the second frame are arranged vertically. Both the first frame and the second frame are connected to the lifting drive assembly, which is configured to drive the first frame to move up and down relative to the second frame.

[0020] The electromagnetic compatibility (EMC) test rack also includes a second rack and a lifting drive assembly. The first rack is located above the second rack, and both the first and second racks are connected to the lifting drive assembly. The lifting drive assembly is configured to drive the first rack to move up and down relative to the second rack. The test equipment is connected to the first rack via an adjustment frame and a support frame. During EMC testing, the user can control the height of the test equipment through the lifting drive assembly, which helps to increase the adjustment dimensions of the test equipment to simulate electromagnetic fields of different directions and angles that the equipment may encounter in a real environment, thereby improving the comprehensiveness and accuracy of EMC testing.

[0021] According to some embodiments of the present invention, the lifting drive assembly includes a third lead screw, a third rotary motor, and a fixing block. The two ends of the third lead screw are arranged in the vertical direction. The third lead screw is rotatably connected to the first frame. The fixing block has a third screw hole that is threadedly connected to the third lead screw. The fixing block is fixedly connected to the second frame and slides along the vertical direction with the first frame. The third rotary motor is connected to the first frame and is driven by the third lead screw to drive the third lead screw to rotate in the forward or reverse direction.

[0022] Specifically, the lifting drive assembly includes a third lead screw, a third rotary motor, and a fixed block. The two ends of the third lead screw are arranged in the vertical direction and are rotatably connected to the first frame. The fixed block is fixedly connected to the second frame and slides along the vertical direction with the first frame. The fixed block has a third threaded hole that is threadedly connected to the third lead screw. The third rotary motor is connected to the first frame and is driven by the third lead screw. The third rotary motor can drive the third lead screw to rotate in the forward or reverse direction relative to the fixed block, so that the third lead screw moves up and down along the axis of the third threaded hole, thereby realizing the lifting of the first frame relative to the second frame. This allows for height adjustment of the test equipment, which increases the adjustment dimensions of the test equipment to simulate electromagnetic fields of different directions and angles that the equipment may encounter in a real environment, and improves the comprehensiveness and accuracy of electromagnetic compatibility testing.

[0023] According to some embodiments of this utility model, two lifting drive components are provided, and the two lifting drive components are respectively connected to both sides of the first frame.

[0024] Specifically, two lifting drive components are provided, which are respectively connected to both sides of the first frame. The synchronous driving of the two lifting drive components helps to improve the lifting stability of the first frame relative to the second frame.

[0025] According to some embodiments of the present invention, the electromagnetic compatibility test rack also includes a rotating table, a turntable, and a fourth rotary motor. The turntable is rotatably connected to the rotating table about an axis extending vertically. The support frame is connected to the upper end of the turntable. The fourth rotary motor is driven to the turntable to drive the turntable to rotate in the forward or reverse direction relative to the rotating table.

[0026] The electromagnetic compatibility test rack also includes a rotary table, a turntable, and a fourth rotary motor. The turntable is rotatably connected to the rotary table around an upwardly extending axis, and the support frame is connected to the upper end of the turntable. The fourth rotary motor is connected to the turntable for transmission. The fourth rotary motor can drive the turntable to rotate in the forward or reverse direction relative to the rotary table, thereby driving the test equipment to rotate in the forward or reverse direction around the upwardly extending axis. This increases the adjustment dimensions of the test equipment, allowing it to simulate electromagnetic fields of different directions and angles that the equipment may encounter in a real environment, and thus improving the comprehensiveness and accuracy of electromagnetic compatibility testing.

[0027] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0028] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0029] Figure 1 This is a schematic diagram of the structure of an electromagnetic compatibility test rack according to an embodiment of the present invention;

[0030] Figure 2 This is a schematic diagram of the connection between the first frame, support frame, and adjustment frame of the electromagnetic compatibility test rack according to an embodiment of the present invention.

[0031] Figure 3 This is a schematic diagram of the connection between the support frame and the adjustment frame of the electromagnetic compatibility test rack according to an embodiment of the present invention;

[0032] Figure 4 for Figure 3 The cross-sectional view showing the connection between the support frame and the adjustment frame of the electromagnetic compatibility test stand.

[0033] Icon labels:

[0034] 100. Support frame; 110. Slide groove; 120. Perforation;

[0035] 200. Adjustment bracket; 210. First screw hole;

[0036] 300. First rotating component;

[0037] 400. Second rotating assembly; 410. First rotating motor; 420. Rotating base;

[0038] 510. First lead screw; 520. Clamp; 530. First limiting plate;

[0039] 600, cushioning pad;

[0040] 700, side panels;

[0041] 810. First frame; 811. Slide rail;

[0042] 820. Transverse drive assembly; 821. Second rotary motor; 822. Second lead screw; 823. Rotating wheel; 8231. Second screw hole; 824. Transmission wheel; 825. Transmission belt; 826. Second limit plate;

[0043] 900, the second rack;

[0044] 1000, Lifting drive assembly; 1010, Third lead screw; 1020, Third rotary motor; 1030, Fixing block;

[0045] 1110. Rotary table; 1120. Turntable. Detailed Implementation

[0046] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0047] In the description of this utility model, it should be understood that the orientation descriptions, such as up, down, etc., are based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0048] In the description of this utility model, "multiple" refers to two or more. The use of "first" and "second" is for distinguishing technical features only and should not be construed as indicating or implying relative importance, or implicitly indicating the number of technical features or their sequential relationship.

[0049] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0050] Reference Figures 1 to 4 As shown, an electromagnetic compatibility test rack according to an embodiment of the present invention includes: a support frame 100, an adjustment frame 200, a first rotating component 300, and a second rotating component 400.

[0051] Reference Figure 1 , Figure 3 and Figure 4 As shown, the adjusting frame 200 and the support frame 100 are rotatably connected about a laterally extending axis, and the support frame 100 can provide support for the connection of the adjusting frame 200.

[0052] Reference Figure 1 , Figure 3 and Figure 4 As shown, the second rotating assembly 400 is connected to the adjusting frame 200. The second rotating assembly 400 is used to connect to the test equipment and is configured to drive the test equipment to rotate forward or backward about a longitudinally extending axis. That is, the test equipment is connected to the adjusting frame 200.

[0053] Reference Figure 1 , Figure 3 and Figure 4As shown, the electromagnetic compatibility test rack also includes a first rotating component 300, which is connected to the adjustment frame 200 to drive the adjustment frame 200 to rotate relative to the support frame 100 about a laterally extending axis in the forward or reverse direction.

[0054] Reference Figure 1 , Figure 3 and Figure 4 As shown, when performing electromagnetic compatibility (EMC) tests, the EMC test stand can rotate the test equipment around a horizontally extending axis via the first rotating component 300 to adjust the vertical angle of the test equipment, and can also rotate the test equipment around a longitudinally extending axis via the second rotating component 400 to adjust the horizontal angle of the test equipment. By adjusting the angle of the test equipment in multiple directions, it can simulate electromagnetic fields of different directions and angles that the test equipment may encounter in a real environment, thereby improving the comprehensiveness and accuracy of the test results. Furthermore, the EMC test stand can achieve automated angle adjustment through the first rotating component 300 and the second rotating component 400, making it simpler and more convenient to use.

[0055] Reference Figure 1 , Figure 3 and Figure 4 As shown, it can be understood that the upper end of the support frame 100 is provided with two side plates 700, the two ends of the side plates 700 are arranged in the vertical direction, the adjustment frame 200 is located between the two side plates 700, and the two sides of the adjustment frame 200 are rotatably connected to the two side plates 700 respectively, so as to realize the rotatable connection between the adjustment frame 200 and the support frame 100 along the horizontally extending axis.

[0056] Reference Figure 1 , Figure 2 and Figure 4 As shown, the first rotating component 300 passes through one of the side plates 700 and is connected to the adjustment frame 200 via a transmission. The operation of the first rotating component 300 can drive the adjustment frame 200 to rotate around the rotation connection point between it and the side plate 700, so as to realize the rotation of the test equipment around the laterally extending axis, so as to simulate the electromagnetic fields of different directions and angles that the test equipment may encounter in the real environment, thereby improving the comprehensiveness and accuracy of the test results, realizing automated angle adjustment, and making it simpler and more convenient to use.

[0057] Reference Figure 1 , Figure 3 and Figure 4 As shown, the first rotating assembly 300 includes a fifth rotating motor. The fifth rotating motor is fixedly connected to the side of the side plate 700 away from the adjusting frame 200. The output shaft of the fifth rotating motor passes through the side plate 700 and is fixedly connected to the adjusting frame 200. By rotating the fifth rotating motor in the forward or reverse direction, the adjusting frame 200 can be driven to rotate in the forward or reverse direction relative to the support frame 100 around the laterally extending axis.

[0058] Reference Figure 1 , Figure 3 and Figure 4 As shown, it can be understood that the adjustment frame 200 is square in shape and has an accommodating space inside. The electromagnetic compatibility test stand also includes a linear drive component and a clamp 520. The second rotating component 400 includes a first rotating motor 410 and a rotating seat 420. The output shaft of the first rotating motor 410 passes through the adjustment frame 200 and is connected to the rotating seat 420 for transmission. The rotating seat 420 is located in the accommodating space to drive the rotating seat 420 to rotate forward or backward around the longitudinally extending axis.

[0059] Reference Figure 1 , Figure 3 and Figure 4 As shown, the linear drive member is connected to the adjustment frame 200 and rotatably connected to the clamp 520, which is located within the accommodating space. The linear drive member is configured to drive the clamp 520 toward or away from the rotating seat 420.

[0060] Reference Figure 1 , Figure 3 and Figure 4 As shown, during use, the user can drive the clamp 520 away from the rotating seat 420 via a linear drive component, then place the test equipment between the clamp 520 and the rotating seat 420, and drive the clamp 520 closer to the rotating seat 420 via the linear drive component. The clamp 520 and the rotating seat 420 together clamp the test equipment, thereby connecting the adjustment frame 200 and the test equipment. The first rotary motor 410 is connected to the rotating seat 420 to drive the rotating seat 420 to rotate forward or backward around the longitudinally extending axis, thereby causing the test equipment to rotate relative to the adjustment frame 200. This allows for angle adjustment of the test equipment around the longitudinally extending axis, simulating electromagnetic fields of different directions and angles that the test equipment may encounter in a real environment, thus improving the comprehensiveness and accuracy of the test results, achieving automated angle adjustment, and making it simpler and more convenient to use.

[0061] Reference Figure 1 , Figure 3 and Figure 4 As shown, it can be understood that the linear drive component includes a first lead screw 510, an adjustment frame 200 is provided with a first screw hole 210, the first screw hole 210 is threadedly connected to the first lead screw 510, and a clamp 520 is connected to one end of the first lead screw 510 near the rotating seat 420.

[0062] Reference Figure 1 , Figure 3 and Figure 4As shown, the user can rotate the first lead screw 510 in the forward or reverse direction. Through the threaded connection between the first lead screw 510 and the first screw hole 210, the first lead screw 510 is driven to move along the axis of the first screw hole 210, thereby driving the clamp 520 to move closer to or further away from the rotating seat 420, so as to achieve the contact or separation of the clamp 520 with the test equipment.

[0063] Reference Figure 1 , Figure 3 and Figure 4 As shown, specifically, buffer pads 600 are provided on the facing surfaces of the clamp 520 and the rotating seat 420, that is, buffer pads 600 are provided on the surface of the clamp 520 facing the rotating seat 420, and buffer pads 600 are also provided on the surface of the rotating seat 420 facing the clamp 520. The contact between the buffer pads 600 and the testing equipment helps to improve the connection stability between the clamp 520 and the rotating seat 420 and the testing equipment. The deformation of the buffer pads 600 can effectively protect the testing equipment and reduce the risk of damage to the testing equipment due to pressure.

[0064] Reference Figure 1 , Figure 3 and Figure 4 As shown, it can be understood that the lower end of the first lead screw 510 is provided with a first limiting groove, and the linear drive component also includes a first limiting piece 530. The first limiting piece 530 is disposed in the first limiting groove, and the first limiting piece 530 can rotate relative to the first limiting groove. The first limiting piece 530 and the first limiting groove limit each other in the longitudinal direction to restrict the first limiting piece 530 from coming out of the first limiting groove.

[0065] Reference Figure 1 , Figure 3 and Figure 4 As shown, the clamp 520 has a disc body and a first connecting post. The two ends of the first connecting post are coaxially arranged and fixedly connected to the first limiting piece 530 and the disc body, respectively. The disc body is fixedly connected to the first limiting piece 530 through the first connecting post. The clamp 520 is rotatably connected to the first lead screw 510 through the first limiting piece 530 in the first limiting groove. This avoids the problem that the connection between the clamp 520 and the test equipment will hinder the rotation of the test equipment around the longitudinally extending axis.

[0066] Reference Figure 1 , Figure 3 and Figure 4 As shown, it is understood that the electromagnetic compatibility test rack also includes a first frame 810 and a transverse drive assembly 820, which is configured to drive the support frame 100 to slide laterally back and forth along the first frame 810.

[0067] Reference Figure 1 , Figure 3 and Figure 4As shown, in electromagnetic compatibility testing, the user can drive the test equipment to move laterally by driving the lateral drive component 820. In conjunction with the rotation angle adjustment of the first rotation component 300 and the second rotation component 400, multi-directional angle adjustment of the test device can be automatically realized, which is beneficial to improving the comprehensiveness and accuracy of electromagnetic compatibility testing.

[0068] Reference Figure 1 , Figure 3 and Figure 4 As shown, it can be understood that the first frame 810 is provided with a through groove extending laterally, and the transverse drive assembly 820 includes a second rotary motor 821, a second lead screw 822 and a rotating wheel 823. The second lead screw 822 is disposed in the through groove, and the two ends of the second lead screw 822 are fixedly connected to the two sides of the through groove.

[0069] Reference Figure 1 , Figure 3 and Figure 4 As shown, the rotating wheel 823 is rotatably connected to the support frame 100. The rotating wheel 823 is provided with a second screw hole 8231 that is threadedly connected to the second lead screw 822. The two ends of the support frame 100 facing away from each other are respectively provided with sliding grooves 110. The length direction of the sliding grooves 110 is consistent with the length direction of the second lead screw 822. The two ends of the through groove along the width direction are respectively provided with slide rails 811. The two sliding grooves 110 are respectively engaged with the two slide rails 811 and slidably connected, thereby restricting the rotation of the support frame 100 and the first frame 810, and restricting the sliding of the support frame 100 and the first frame 810 to the length direction of the second lead screw 822.

[0070] Reference Figure 1 , Figure 3 and Figure 4 As shown, the second rotary motor 821 is connected to the support frame 100 and is driven by the rotating wheel 823 to drive the rotating wheel 823 to rotate in the forward or reverse direction relative to the second lead screw 822, so that the support frame 100 moves back and forth along the second lead screw 822 to drive the lateral displacement of the test equipment. This can automatically realize multi-directional angle adjustment of the test device, which is beneficial to improving the comprehensiveness and accuracy of electromagnetic compatibility testing.

[0071] Reference Figure 1 , Figure 2 and Figure 4 As shown, specifically, the support frame 100 has a through hole 120, the axis of the through hole 120 is coaxial with the axis of the rotating wheel 823, and the through hole 120 allows the second lead screw 822 to pass through.

[0072] Reference Figure 1 , Figure 3 and Figure 4As shown, it can be understood that the transverse drive assembly 820 also includes a sixth rotary motor, a transmission belt 825, and a transmission wheel 824. The sixth rotary motor is fixedly connected to the support frame 100, and the output shaft of the sixth rotary motor is fixedly connected to the transmission wheel 824. The transmission belt 825 is wound between the transmission wheel 824 and the rotating wheel 823. The sixth rotary motor can drive the transmission wheel 824 to rotate in the forward or reverse direction. Under the transmission action of the transmission belt 825, the rotating wheel 823 is driven to rotate in the forward or reverse direction. Through the threaded connection between the second lead screw 822 and the second screw hole 8231, and in conjunction with the mutual limiting of the slide groove 110 and the first frame 810, the support frame 100 is driven to move laterally back and forth along the first frame 810.

[0073] Reference Figure 1 , Figure 3 and Figure 4 As shown, specifically, the electromagnetic compatibility test stand also includes a second limiting piece 826, which is ring-shaped and includes a ring body and a second connecting post. The first frame 810 is provided with a second limiting groove coaxially arranged with the through hole 120. The ring body is disposed in the second limiting groove and is rotatably connected to the second limiting groove. The ring body and the second limiting ring mutually limit each other to prevent the second limiting ring from dislodging from the second limiting groove along the length direction of the through hole 120. The two ends of the second connecting post are coaxially arranged and fixedly connected to the ring body and the rotating wheel 823, respectively. That is, the rotating wheel 823 is connected to the ring body through the second connecting post, thereby realizing the rotatable connection between the rotating wheel 823 and the first frame 810.

[0074] Reference Figure 1 , Figure 2 and Figure 3 As shown, it can be understood that the adjustment frame 200, support frame 100, first rotating component 300, second rotating component 400, linear drive component and transverse drive component 820 together form a sliding mechanism. The electromagnetic compatibility test rack can be equipped with two or more sliding mechanisms. The transverse drive components 820 of multiple sliding mechanisms share a second lead screw 822, that is, multiple sliding mechanisms are all connected to the first frame 810 to realize the electromagnetic compatibility test of multiple test devices at the same time.

[0075] Reference Figure 1 , Figure 2 and Figure 3 As shown, it is understood that the electromagnetic compatibility test rack also includes a second rack 900 and a lifting drive assembly 1000. The first rack 810 and the second rack 900 are arranged vertically, with the first rack 810 located above the second rack 900. Both the first rack 810 and the second rack 900 are connected to the lifting drive assembly 1000, which is configured to drive the first rack 810 to move up and down relative to the second rack 900.

[0076] Reference Figure 1 , Figure 2 and Figure 3 As shown, in electromagnetic compatibility testing, users can adjust the height of the test equipment by controlling the lifting drive component 1000. This increases the adjustment dimensions of the test equipment, allowing it to simulate electromagnetic fields of different directions and angles that the equipment may encounter in a real environment, thus improving the comprehensiveness and accuracy of electromagnetic compatibility testing.

[0077] Reference Figure 1 , Figure 2 and Figure 3 As shown, it can be understood that, specifically, the lifting drive assembly 1000 includes a third lead screw 1010, a third rotary motor 1020, and a fixing block 1030. The two ends of the third lead screw 1010 are arranged in the vertical direction. The third lead screw 1010 is rotatably connected to the first frame 810. The fixing block 1030 has a third screw hole that is threadedly connected to the third lead screw 1010. The fixing block 1030 is fixedly connected to the second frame 900 and slides in the vertical direction with the first frame 810.

[0078] Reference Figure 1 , Figure 2 and Figure 3 As shown, the third rotary motor 1020 is connected to the first frame 810 and is driven by the third lead screw 1010 to drive the third lead screw 1010 to rotate in the forward or reverse direction, thereby realizing the lifting and lowering of the first frame 810 relative to the second frame 900. This allows for height adjustment of the test equipment, which increases the adjustment dimensions of the test equipment and simulates electromagnetic fields of different directions and angles that the equipment may encounter in the real environment. This also helps to improve the comprehensiveness and accuracy of electromagnetic compatibility testing.

[0079] Reference Figure 1 , Figure 2 and Figure 3 As shown, it can be understood that, specifically, two lifting drive components 1000 are provided, and the two lifting drive components 1000 are respectively connected to both sides of the first frame 810. The synchronous driving of the two lifting drive components 1000 helps to improve the lifting stability of the first frame 810 relative to the second frame 900.

[0080] Reference Figure 1 , Figure 2 and Figure 3 As shown, specifically, the first frame 810 includes a support plate, a first sub-plate and a second sub-plate. The first sub-plate and the second sub-plate are respectively connected to both sides of the support plate and extend downward. The first sub-plate and the second sub-plate are arranged at right angles to the support plate, so that the first frame 810 is arranged in a U-shape with the opening facing downward.

[0081] Reference Figure 1 , Figure 2 and Figure 3 As shown, two lifting drive assemblies 1000 are connected to the first sub-plate and the second sub-plate respectively, and two fixing blocks 1030 are connected to both sides of the second frame 900 respectively.

[0082] Reference Figure 1 , Figure 2 and Figure 3 As shown, the connection between the first sub-plate and the lifting drive assembly 1000 is taken as an example. The first sub-plate is provided with a sliding groove extending vertically, and the fixing block 1030 is slidably connected to the sliding groove, thereby restricting the rotation of the first frame 810 relative to the second frame 900 and restricting the movement of the first frame 810 relative to the second frame 900 to the vertical direction.

[0083] Reference Figure 1 , Figure 2 and Figure 3 As shown, the third rotary motor 1020 is fixed to the first sub-plate, and the upper and lower ends of the third lead screw 1010 are rotatably connected to the upper and lower ends of the first sub-plate, respectively. The third lead screw 1010 passes through the third screw hole of the fixing block 1030, and the third screw hole is threadedly connected to the third lead screw 1010. The output shaft of the third rotary motor 1020 is fixedly connected to the third lead screw 1010. The third rotary motor 1020 can drive the third lead screw 1010 to rotate, so that the third lead screw 1010 moves axially along the third screw hole, thereby driving the first frame 810 to rise and fall relative to the second frame 900.

[0084] Reference Figure 1 , Figure 2 and Figure 3 As shown, it should be noted that the connection structure between the second sub-board and the lifting drive assembly 1000 is the same as the connection structure between the first sub-board and the lifting drive assembly 1000, and will not be described again here.

[0085] Reference Figure 1 , Figure 2 and Figure 3 As shown, it can be understood that the electromagnetic compatibility test rack also includes a rotary table 1110, a turntable 1120 and a fourth rotary motor. The turntable 1120 is rotatably connected to the rotary table 1110 about an axis extending vertically. The lower end of the second frame 900 is fixedly connected to the upper end of the turntable 1120, and the central axis of the second frame 900 in the vertical direction is not coaxial with the central axis of the turntable 1120.

[0086] The fourth rotary motor is connected to the turntable 1120 for transmission. The fourth rotary motor can drive the turntable 1120 to rotate in the forward or reverse direction relative to the rotary table 1110, so as to drive the test equipment to rotate in the forward or reverse direction around the central axis of the turntable 1120. This is beneficial to increase the adjustment dimension of the test equipment, so as to simulate the electromagnetic fields of different directions and angles that the equipment may encounter in the real environment, and to improve the comprehensiveness and accuracy of electromagnetic compatibility testing.

[0087] Reference Figure 1 , Figure 2 and Figure 3 As shown, it can be understood that the working principle of this electromagnetic compatibility test stand is as follows:

[0088] Users can install the electromagnetic compatibility test rack in a shielded room. Then, by rotating the first lead screw 510 in the forward direction, the clamp 520 connected to the first lead screw 510 moves away from the rotating seat 420 through the engagement of the first lead screw 510 and the first screw hole 210. Users can then place the test equipment between the clamp 520 and the rotating seat 420. By rotating the first lead screw 510 in the reverse direction, the clamp 520 connected to the first lead screw 510 moves closer to the rotating seat 420 through the engagement of the first lead screw 510 and the first screw hole 210. The clamp 520 and the rotating seat 420 together clamp the test equipment, thereby connecting the test equipment to the adjustment frame 200. The rubber pads provided on the facing surfaces of the clamp 520 and the rotating seat 420 can improve the clamping stability of the test equipment and reduce the risk of pressure damage to the test equipment.

[0089] Reference Figure 1 , Figure 2 and Figure 3As shown, during the test, the user can drive the adjustment frame 200 to rotate relative to the support frame 100 about a laterally extending axis by driving the first rotating component 300. The test equipment is connected to the adjustment frame 200, thus realizing the function of driving the test equipment to rotate forward or backward about the laterally extending axis. The second rotating component 400 can drive the rotating seat 420 to rotate forward or backward about a longitudinally extending axis, thereby driving the test equipment that abuts against the rotating seat 420 to rotate forward or backward about the longitudinally extending axis. The user controls the transverse drive component 820 to drive the rotating wheel 823 to rotate, which is connected to the second lead screw 822 through the second screw hole 8231, thereby driving the support frame 100 to move laterally back and forth along the first frame 810, thereby adjusting the lateral position of the test equipment connected to the adjustment frame 200. The user controls the lifting drive assembly 1000 to drive the third lead screw 1010 to rotate. The third lead screw 1010 is threadedly connected to the third screw hole of the fixing block 1030, thereby driving the first frame 810 to rise or fall relative to the second frame 900, thus adjusting the height of the test equipment connected to the adjustment frame 200. The user controls the operation of the fifth rotary motor to drive the turntable 1120 to rotate forward or backward relative to the rotary table 1110, thereby driving the test equipment connected to the adjustment frame 200 to rotate forward or backward around the center of the turntable 1120.

[0090] Reference Figure 1 , Figure 2 and Figure 3 As shown, the electromagnetic compatibility test stand, through the cooperation of the first rotating component 300 and the second rotating component 400, can drive the test equipment to rotate around the horizontal and vertical axes. Through the driving action of the lateral drive component 820, the test equipment can be driven to move laterally back and forth along the first frame 810. Through the driving action of the lifting drive component 1000, the test equipment can be driven to rise and fall. Through the cooperation of the rotating table 1110, the turntable 1120 and the fourth rotating motor, the test equipment can be driven to rotate around the central axis of the turntable 1120, which can meet the needs of multi-angle electromagnetic compatibility testing of the test equipment.

[0091] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. An electromagnetic compatibility testing rack, characterized in that, include: Support frame (100); The adjusting frame (200) is rotatably connected to the support frame (100) about a laterally extending axis; The first rotating component (300) is connected to the adjusting frame (200) in a transmission manner to drive the adjusting frame (200) to rotate in the forward or reverse direction relative to the support frame (100); A second rotating assembly (400), connected to the adjustment frame (200), is used to connect to a test device. The second rotating assembly (400) is configured to drive the test device to rotate forward or backward about a longitudinally extending axis.

2. The electromagnetic compatibility test stand according to claim 1, characterized in that: It also includes a linear drive component and a clamp (520). The second rotating assembly (400) includes a first rotary motor (410) and a rotating seat (420). The first rotary motor (410) is connected to the adjusting frame (200) and is throttle connected to the rotating seat (420) to drive the rotating seat (420) to rotate forward or backward about a longitudinally extending axis. The linear drive component is connected to the adjusting frame (200) and rotatably connected to the clamp (520). The linear drive component is configured to drive the clamp (520) to move closer to or away from the rotating seat (420).

3. The electromagnetic compatibility test stand according to claim 2, characterized in that: The linear drive component includes a first lead screw (510), the adjusting bracket (200) is provided with a first screw hole (210), the first screw hole (210) is threadedly connected to the first lead screw (510), and the clamp (520) is connected to one end of the first lead screw (510) near the rotating seat (420); and / or, The clamp (520) and the rotating seat (420) are respectively provided with buffer pads (600) on their facing surfaces.

4. The electromagnetic compatibility test stand according to claim 1, characterized in that: The upper end of the support frame (100) is provided with two side plates (700), and the adjustment frame (200) is located between the two side plates (700). The two sides of the adjustment frame (200) are rotatably connected to the two side plates (700) respectively. The first rotating component (300) passes through one of the side plates (700) and is connected to the adjustment frame (200) in a transmission manner.

5. The electromagnetic compatibility test stand according to claim 1, characterized in that: It also includes a first frame (810) and a lateral drive assembly (820) configured to drive the support frame (100) to slide laterally back and forth along the first frame (810).

6. The electromagnetic compatibility test stand according to claim 5, characterized in that: The lateral movement drive assembly (820) includes a second rotary motor (821), a second lead screw (822), and a rotating wheel (823). The second lead screw (822) is connected to the first frame (810). The rotating wheel (823) has a second threaded hole (8231) that is threadedly connected to the second lead screw (822). The rotating wheel (823) is rotatably connected to the support frame (100). The second rotary motor (821) is connected to the support frame (100) and is drively connected to the rotating wheel (823) to drive the rotating wheel (823) to rotate in the forward or reverse direction relative to the second lead screw (822); and / or, The first frame (810) is provided with a slide rail (811), and the support frame (100) is slidably connected to the slide rail (811).

7. The electromagnetic compatibility test stand according to claim 5, characterized in that: It also includes a second frame (900) and a lifting drive assembly (1000), wherein the first frame (810) and the second frame (900) are arranged vertically, and both the first frame (810) and the second frame (900) are connected to the lifting drive assembly (1000), which is configured to drive the first frame (810) to move up and down relative to the second frame (900).

8. The electromagnetic compatibility test stand according to claim 7, characterized in that: The lifting drive assembly (1000) includes a third lead screw (1010), a third rotary motor (1020), and a fixing block (1030). The two ends of the third lead screw (1010) are arranged in the vertical direction. The third lead screw (1010) is rotatably connected to the first frame (810). The fixing block (1030) has a third threaded hole that is threadedly connected to the third lead screw (1010). The fixing block (1030) is fixedly connected to the second frame (900) and slidably connected to the first frame (810) in the vertical direction. The third rotary motor (1020) is connected to the first frame (810) and is drivenly connected to the third lead screw (1010) to drive the third lead screw (1010) to rotate in the forward or reverse direction.

9. The electromagnetic compatibility test stand according to claim 7, characterized in that: Two lifting drive assemblies (1000) are provided, and the two lifting drive assemblies (1000) are respectively connected to both sides of the first frame (810).

10. The electromagnetic compatibility test stand according to claim 1, characterized in that: It also includes a rotary table (1110), a turntable (1120) and a fourth rotary motor. The turntable (1120) is rotatably connected to the rotary table (1110) about an axis extending vertically. The support frame (100) is connected to the upper end of the turntable (1120). The fourth rotary motor is drivenly connected to the turntable (1120) to drive the turntable (1120) to rotate in the forward or reverse direction relative to the rotary table (1110).

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