Electromagnetic compatibility testing device

Abstract

The utility model relates to the related technical field of vehicles, and discloses an electromagnetic compatibility testing device, which comprises a testing mechanism, an adjusting mechanism and two fixing mechanisms, and is characterized in that the testing mechanism comprises a room body, a semi-anechoic chamber, a vehicle-mounted rotary table and an operation room; the adjusting mechanism comprises a U-shaped plate, a U-shaped groove, two first lead screws, a motor, four first supporting plates and four second supporting plates, a belt is arranged between the front sides of the outer end faces of the two first lead screws, and two rotating blocks are rotationally arranged in the middle of the front side of the upper end face of the U-shaped plate; the two fixing mechanisms comprise two sliding blocks, two sliding plates, two L-shaped plates, two second lead screws and two extrusion plates. According to the utility model, through the arrangement of the adjusting mechanism, when the front and back positions of the test antenna are adjusted, manual adjustment is not needed, the adjustment is more convenient, through the arrangement of the extrusion plate, the first support plate and the second support plate, the test antennas of different models can be fixed, and the practicability is improved.

Description

Technical Field

[0001] The utility model relates to the technical field related to vehicles, and in particular to an electromagnetic compatibility testing device. Background Art

[0002] New energy vehicles refer to vehicles that use non-traditional fuels as a power source, mainly including electric vehicles, hybrid vehicles and fuel cell vehicles. The electromagnetic compatibility test device is a device specially used to evaluate the working performance and electromagnetic compatibility of electronic equipment in an electromagnetic environment. After the production of new energy vehicles, in order to test whether they will be interfered with by electromagnetic interference and whether they will cause electromagnetic interference to the surrounding area, this device is usually required to perform electromagnetic compatibility testing on the vehicle.

[0003] Some existing electromagnetic compatibility testing devices, when using a test antenna to simulate electromagnetic interference for new energy vehicles, require operators to go to a semi-anechoic chamber after each test and manually adjust the distance between the test antenna and the new energy vehicle in order to conduct more accurate tests on the new energy vehicles, which is rather troublesome.

[0004] Therefore, those skilled in the art provide an electromagnetic compatibility testing device to solve the problems raised in the above background technology. Utility Model Content

[0005] The purpose of the utility model is to solve the shortcomings existing in the prior art, and to propose an electromagnetic compatibility testing device, which drives the test antenna to move by setting an adjustment mechanism, so that when adjusting the front and rear positions of the test antenna, no manual adjustment is required, which is more convenient. By setting an extrusion plate, a first support plate and a second support plate, it is possible to fix test antennas of different models, thereby improving practicality.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an electromagnetic compatibility test device, comprising a test mechanism, an adjustment mechanism and two fixing mechanisms, the test mechanism comprising a room, a semi-anechoic chamber, a vehicle-mounted turntable and an operating room, the adjustment mechanism comprising a U-shaped plate, a U-shaped groove, two first screw rods, a motor, four first support plates and four second support plates, a belt is arranged between the outer end faces of the two first screw rods, and two rotating blocks are rotatably arranged at the middle position of the upper end faces of the U-shaped plate;

[0007] The two fixing mechanisms include two sliders, two slide plates, two L-shaped plates, two second screw rods and two extrusion plates. A first rotating plate is rotatably arranged on the opposite side between the front side and the rear side inner wall of the two slide plates, and a second rotating plate is rotatably arranged on the opposite side between the front side and the rear side inner wall of the two slide plates. A test antenna is fixedly arranged between the two fixing mechanisms.

[0008] Through the above technical scheme, by rotating the bolts on the surface of the two sliders, the fixation of the slider to the slider is released. At this time, the two sliders are moved to the opposite side, and then the test antenna is moved between the inner walls of the opposite side of the U-shaped plate, so that the test antenna is fitted with the front inner wall of the U-shaped plate. At this time, the bolts on the surface of the four first support plates are rotated, and then the U-shaped plate is held and moved upward. When it moves to the bottom of the test antenna, the two rotating blocks are rotated ninety degrees in opposite directions respectively. At this time, the support for the U-shaped plate is released, and the rotating block is against the surface of the test antenna. Then, the bolts on the surface of the four first support plates are turned back. At this time, an L-shaped plate is held and moved horizontally, and the inner wall of the L-shaped plate is against the test antenna. Then, the second screw rod is rotated to drive the extrusion plate on the surface of the second screw rod to move upward, thereby fixing the L-shaped plate and one side of the test antenna together, and then the same operation is performed on the other L-shaped plate. After they are all fixed, the positions of both sides of the test antenna can be adjusted. After moving to the appropriate position, the bolts on the surface of the two sliders are turned back again.

[0009] Furthermore, the semi-anechoic chamber is provided on the rear inner wall of the chamber, the operating room is provided on the front inner wall of the chamber, and the vehicle-mounted turntable is arranged at the middle position of the rear side of the bottom surface of the semi-anechoic chamber;

[0010] Through the above technical solution, electromagnetic testing is carried out on new energy vehicles in a semi-anechoic chamber, and the data is then transmitted to the operating room. In addition, the vehicle body is moved onto a vehicle-mounted turntable to facilitate multi-angle testing of the vehicle body.

[0011] Further, the lower end surfaces of the four first support plates are fixedly arranged on the front side of the bottom inner side of the semi-anechoic chamber, the four second support plates are fixedly arranged inside the four first support plates by bolts, and the U-shaped plate is fixedly arranged between the upper end surfaces of the four second support plates;

[0012] According to the above technical solution, by rotating the four bolts on the surface of the first support plate, the U-shaped plate can be held and moved upward, so that the U-shaped plate can be aligned with the bottom of the test antenna at different heights.

[0013] Furthermore, the U-shaped groove is provided on the upper end surface of the U-shaped plate, the two first screw rods are rotatably arranged on both sides between the front and rear inner walls of the U-shaped groove, and the lower inner walls of the two sliders are respectively threadedly sleeved on the front sides of the outer end surfaces of the two first screw rods;

[0014] Through the above technical solution, the first screw rod is limited by the U-shaped groove, so that the first screw rod is more stable when rotating, and the slider on the surface can be driven to move during the rotation of the first screw rod.

[0015] Furthermore, the motor is fixedly arranged on one side of the front end surface of the U-shaped plate, and the output end of the motor is fixedly connected to one side of the two first screw rods;

[0016] Through the above technical solution, a first screw rod is driven to rotate by the motor, and another first screw rod can be driven to rotate together under the action of the belt.

[0017] Furthermore, the two slide plates are respectively fixedly arranged inside the two sliding blocks by bolts, and the two L-shaped plates are respectively fixedly connected to the two slide plates;

[0018] According to the above technical solution, the fixing of the slider to the slide plate can be released by rotating the bolts on the surface of the slider, and then the L-shaped plate can be moved so that the inner wall of the L-shaped plate can fit with one side of the test antenna.

[0019] Furthermore, the two second screw rods are respectively rotatably arranged in the middle of the upper end surfaces of the two L-shaped plates, and the inner walls on the opposite sides of the two extrusion plates are respectively threadedly sleeved on the lower sides of the outer end surfaces of the two second screw rods;

[0020] Through the above technical solution, by rotating the second screw rod, the second screw rod drives the surface extrusion plate to move upward, so that the end face of the extrusion plate and the end face of the test antenna can be fitted together, thereby connecting the L-shaped plate and the test antenna together.

[0021] The utility model has the following beneficial effects:

[0022] 1. The utility model proposes an electromagnetic compatibility test device, which fixes a test antenna between two fixing mechanisms, and then moves the test antenna to both sides as needed. After moving to a suitable position, the two first screw rods can be driven to rotate by a motor in the operating room. During the rotation, the test antenna is driven to move in the front and rear directions. No manual adjustment is required, which is more convenient. When the test antenna is in the middle position, the two second rotating plates can be flipped to a vertical position, and when the test antenna is on one side, the two slide plates can be flipped to a vertical position to reduce its occupation of horizontal space.

[0023] 2. The utility model proposes an electromagnetic compatibility test device, which drives the sliding plate to move by setting a slider, so that the positions of both sides of the two L-shaped plates can be adjusted according to the width of the test antenna, and the vertical positions of the two L-shaped plates can be adjusted according to the height of the test antenna by setting a first support plate, a second support plate and a rotating plate. Finally, the extrusion plate is moved by rotating the second screw rod, so that the position of the extrusion plate can be adjusted according to the height of one side of the bottom of the test antenna. Through the above, different types of test antennas can be fixed, thereby improving practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the axial side of the utility model;

[0025] Figure 2 It is a side axial schematic diagram of the utility model;

[0026] Figure 3 This is a schematic diagram of the upper shaft side of the adjustment mechanism of the utility model;

[0027] Figure 4 This is a schematic diagram of the lower shaft side of the adjustment mechanism of the utility model;

[0028] Figure 5 This is a schematic diagram of the axial side of the fixing mechanism of the utility model;

[0029] Figure 6 It is a schematic diagram of the explosion of the U-shaped plate of the utility model.

[0030] Legend:

[0031] 1. Testing mechanism; 2. Adjusting mechanism; 3. Fixing mechanism; 4. Testing antenna; 101. Room; 102. Semi-anechoic chamber; 103. Vehicle-mounted turntable; 104. Operating room; 201. U-shaped plate; 202. U-shaped groove; 203. First screw rod; 204. Belt; 205. Motor; 206. Rotating block; 207. First supporting plate; 208. Second supporting plate; 301. Sliding block; 302. Sliding plate; 303. First rotating plate; 304. L-shaped plate; 305. Second screw rod; 306. Extrusion plate; 307. Second rotating plate. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0033] Reference Figure 1-6The utility model provides an embodiment: an electromagnetic compatibility test device, including a test mechanism 1, an adjustment mechanism 2 and two fixing mechanisms 3, the test mechanism 1 includes a room 101, a semi-anechoic chamber 102, a vehicle-mounted turntable 103 and an operating room 104, the semi-anechoic chamber 102 is opened on the inner wall of the rear side of the room 101, the operating room 104 is opened on the inner wall of the front side of the room 101, and the vehicle-mounted turntable 103 is arranged in the middle position of the rear side of the bottom surface of the semi-anechoic chamber 102. By performing electromagnetic testing on new energy vehicles in the semi-anechoic chamber 102, and then transmitting data to the operating room 104, and by moving the vehicle body to the vehicle-mounted turntable 103, it is convenient to perform multi-angle testing on the vehicle body, the adjustment mechanism 2 includes U shaped plate 201, U-shaped groove 202, two first screw rods 203, motor 205, four first support plates 207 and four second support plates 208, two rotating blocks 206 are rotatably arranged in the middle position of the front side of the upper end face of the U-shaped plate 201, the lower end faces of the four first support plates 207 are all fixedly arranged on the front side of the bottom face in the semi-anechoic chamber 102, the four second support plates 208 are respectively fixedly arranged inside the four first support plates 207 by bolts, the U-shaped plate 201 is fixedly arranged between the upper end faces of the four second support plates 208, and the U-shaped plate 201 can be held and moved upward by rotating the four bolts on the surface of the first support plate 207, so that the U-shaped plate 201 can be aligned with the bottom of the test antenna 4 at different heights.

[0034] When the U-shaped plate 201 moves upward to the bottom of the test antenna 4, the two rotating blocks 206 are rotated ninety degrees in opposite directions respectively. At this time, the support for the U-shaped plate 201 is released, and the U-shaped plate 201 moves downward under the action of its own gravity. When the rotating block 206 is against the surface of the test antenna 4, the U-shaped plate 201 is fixed in the air, and then the bolts on the surface of the four first support plates 207 are turned back, so that the second support plate 208 and the first support plate 207 can be fixed together. At this time, the two rotating blocks 206 are turned back. The two fixing mechanisms 3 include two sliders 301, two slide plates 302, two L-shaped plates 304, two second screw rods 305 and two extrusion plates 306. The first rotating plate 303 is rotatably provided on the opposite side between the front side and the rear side inner wall of the two slide plates 302, and the second rotating plate 307 is rotatably provided on the opposite side between the front side and the rear side inner wall of the two slide plates 302. The test antenna 4 is fixedly provided between the two fixing mechanisms 3.

[0035] The two slide plates 302 are fixedly arranged inside the two sliders 301 by bolts, and the two L-shaped plates 304 are fixedly connected to the two slide plates 302. Before adjusting the height of the U-shaped plate 201, the bolts on the surfaces of the two sliders 301 are rotated to release the fixing of the sliders 301 to the slide plates 302. At this time, the two slide plates 302 are moved to the opposite side, and then the test antenna 4 is moved between the inner walls of the opposite side of the U-shaped plate 201, so that the test antenna 4 is fitted with the front inner wall of the U-shaped plate 201, and then one L-shaped plate 304 is held and moved horizontally to make the inner wall of the L-shaped plate 304 against the test antenna 4. After fitting, the other The same operation is performed on the L-shaped plate 304, but before pulling the L-shaped plate 304, it should be ensured that the second rotating plate 307 is in a horizontal state, and the two second screw rods 305 are respectively rotatably arranged in the middle position of the upper end surfaces of the two L-shaped plates 304, and the inner walls on the opposite sides of the two extrusion plates 306 are respectively threadedly sleeved on the lower sides of the outer end surfaces of the two second screw rods 305. When the two L-shaped plates 304 are fitted together, by rotating the second screw rods 305 respectively, the second screw rods 305 drive the surface extrusion plates 306 to move upward, so that the end surface of the extrusion plate 306 can be fitted with the end surface of the test antenna 4, thereby connecting the L-shaped plate 304 and the test antenna 4 together.

[0036] A belt 204 is arranged between the outer end faces of the two first screw rods 203, the U-shaped groove 202 is opened on the upper end face of the U-shaped plate 201, the two first screw rods 203 are respectively rotatably arranged on both sides between the front side and the rear inner wall of the U-shaped groove 202, the lower inner walls of the two sliders 301 are respectively threadedly sleeved on the outer end faces of the two first screw rods 203, the motor 205 is fixedly arranged on one side of the front end face of the U-shaped plate 201, and the output end of the motor 205 is fixedly connected to one side of the two first screw rods 203. After the two fixing mechanisms 3 fix the test antenna 4, the test antenna 4 can be horizontally moved. Move in the direction, and after moving to the appropriate position, turn the bolts on the surfaces of the two sliders 301 back, and when the slide plate 302 is inside the slide plate 301 and the second rotating plate 307 is outside the slide plate 302, the second rotating plate 307 can be rotated to a vertical position. When the slide plate 302 and the second rotating plate 307 are both outside, the slide plate 302 can be rotated to a vertical position to reduce its occupation of the horizontal space. Finally, turn on the motor 205 in the operating room 104 to drive the two first screw rods 203 to rotate, so as to adjust the front and rear positions of the test antenna 4.

[0037] Working principle: manually rotate the bolts on the surface of the two sliders 301, and then rotate the two second rotating plates 307 to a horizontal position. At this time, push the test antenna 4 to the front end of the U-shaped plate 201 to make it fit with the front inner wall of the U-shaped plate 201, and then rotate the bolts on the surface of the four first support plates 207. At this time, hold the U-shaped plate 201 and move it upward. When the U-shaped plate 201 is located at the upper end of the bottom of the test antenna 4, rotate the two rotating blocks 206 in the opposite direction to move the rotating blocks 206 to the upper end of the bottom of the test antenna 4, and then release the pull on the U-shaped plate 201. When the U-shaped plate 201 is fixed in the air, the bolts on the surface of the first support plate 207 are turned back, and then the two L-shaped plates 304 are pulled respectively to make the inner wall of the L-shaped plate 304 fit with the end surface of the bottom of the test antenna 4. At this time, the two second screw rods 305 are rotated to make the two extrusion plates 306 fit together with the test antenna 4, and then the test antenna 4 is moved in the directions of both sides. After moving to the appropriate position, the bolts on the surfaces of the two sliders 301 are turned back, and finally the motor 205 can be turned on to drive the test antenna 4 to move in the front and rear directions.

[0038] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An electromagnetic compatibility testing device, comprising a testing mechanism (1), an adjusting mechanism (2) and two fixing mechanisms (3), characterized in that: The testing mechanism (1) comprises a room (101), a semi-anechoic chamber (102), a vehicle-mounted turntable (103) and an operating room (104); the adjusting mechanism (2) comprises a U-shaped plate (201), a U-shaped groove (202), two first screw rods (203), a motor (205), four first support plates (207) and four second support plates (208); a belt (204) is arranged between the front sides of the outer end faces of the two first screw rods (203); and two rotating blocks (206) are rotatably arranged at the middle position of the front side of the upper end face of the U-shaped plate (201); The two fixing mechanisms (3) comprise two sliders (301), two slide plates (302), two L-shaped plates (304), two second screw rods (305) and two extrusion plates (306); a first rotating plate (303) is rotatably arranged on one side opposite to the front side and the rear side inner wall of the two slide plates (302); a second rotating plate (307) is rotatably arranged on one side opposite to the front side and the rear side inner wall of the two slide plates (302); and a test antenna (4) is fixedly arranged between the two fixing mechanisms (3).

2. An electromagnetic compatibility testing device according to claim 1, characterized in that: The semi-anechoic chamber (102) is provided on the rear inner wall of the chamber (101), the operating room (104) is provided on the front inner wall of the chamber (101), and the vehicle-mounted turntable (103) is arranged at the middle position of the rear side of the inner bottom surface of the semi-anechoic chamber (102).

3. The electromagnetic compatibility testing device according to claim 1, characterized in that: The lower end surfaces of the four first support plates (207) are fixedly arranged on the front side of the bottom surface of the semi-anechoic chamber (102), the four second support plates (208) are respectively fixedly arranged inside the four first support plates (207) by bolts, and the U-shaped plate (201) is fixedly arranged between the upper end surfaces of the four second support plates (208).

4. The electromagnetic compatibility testing device according to claim 1, characterized in that: The U-shaped groove (202) is provided on the upper end surface of the U-shaped plate (201); the two first screw rods (203) are respectively rotatably arranged on both sides between the front and rear inner walls of the U-shaped groove (202); and the lower inner walls of the two sliding blocks (301) are respectively threadedly sleeved on the front sides of the outer end surfaces of the two first screw rods (203).

5. The electromagnetic compatibility testing device according to claim 1, characterized in that: The motor (205) is fixedly arranged on one side of the front end surface of the U-shaped plate (201), and the output end of the motor (205) is fixedly connected to one side of the two first screw rods (203).

6. The electromagnetic compatibility testing device according to claim 1, characterized in that: The two slide plates (302) are respectively fixedly arranged inside the two sliding blocks (301) by means of bolts, and the two L-shaped plates (304) are respectively fixedly connected to the two slide plates (302).

7. The electromagnetic compatibility testing device according to claim 1, characterized in that: The two second screw rods (305) are respectively rotatably arranged in the middle position of the upper end surfaces of the two L-shaped plates (304), and the inner walls on the opposite sides of the two extrusion plates (306) are respectively threadedly sleeved on the lower sides of the outer end surfaces of the two second screw rods (305).

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