Electromagnetic anti-interference reverberation chamber

Abstract

The utility model relates to the technical field of reverberation chambers, and discloses an electromagnetic anti-interference reverberation chamber which comprises a shielding chamber and an adjusting plate, the adjusting plate comprises a plate body, a double-shaft servo motor is embedded in the midpoint of the inner bottom surface of the plate body, and movable mechanisms are movably embedded in the positions, close to the front end and the rear end, of the upper end face of the plate body. And movable blocks are movably embedded into the rear ends of the two sides of the two movable mechanisms. According to the utility model, when the whole vehicle is moved to the midpoint of the bottom surface in the shielding chamber, the adjusting plate and the movable mechanism can be driven by the first hydraulic rod to move and adjust, so that the whole vehicle can be clamped and fixed after the whole vehicle with different specifications is adjusted; and meanwhile, a rotating mechanism fixedly arranged on the top surface in the shielding chamber can be adjusted in a lifting manner and then drives a rotating plate fixedly provided with an electromagnetic generating device to rotate and adjust through a first servo motor, so that the whole vehicle can be detected more comprehensively.

Description

Technical Field

[0001] The utility model relates to the technical field of reverberation chambers, in particular to an electromagnetic immunity reverberation chamber. Background Art

[0002] The vehicle electromagnetic immunity reverberation chamber is a facility specifically used for testing the electromagnetic compatibility and anti-interference performance of vehicles. In this reverberation chamber, the vehicle is placed in a specially designed electromagnetic shielding chamber to simulate the actual working scenarios under different electromagnetic environment conditions. By conducting various electromagnetic interference tests in the vehicle electromagnetic immunity reverberation chamber, vehicle manufacturers and R & D teams can evaluate and verify the electromagnetic compatibility of the vehicle to ensure the normal operation and safety of the vehicle system in various electromagnetic environments.

[0003] Currently, when the existing vehicle electromagnetic immunity reverberation chambers test the vehicle, most reverberation chambers use a fixedly arranged electromagnetic generating device to detect the vehicle. Since most reverberation chambers are difficult to conduct a more comprehensive detection of the vehicle after fixing the electromagnetic generating device, and at the same time, the support structures movably arranged in most reverberation chambers are difficult to adjust for vehicles of different specifications and sizes to support and fix the vehicle. Therefore, the utility model provides an electromagnetic immunity reverberation chamber to solve the problems raised in the above background art. Summary of the Utility Model

[0004] The purpose of the utility model is to solve the deficiencies existing in the prior art, and provide an electromagnetic immunity reverberation chamber. The rotation structure fixedly arranged on the top surface inside the shielding chamber can drive the fixing plate and the connecting plate clamped with the electromagnetic generating device to rotate through the fixedly arranged first servo motor, so as to conduct a more comprehensive detection of the vehicle under the push of the first hydraulic rod. At the same time, the adjusting plate movably arranged on the bottom surface inside the shielding chamber and the movable structure can be adjusted according to vehicles of different specifications and sizes, so as to better support and fix the vehicle.

[0005] To achieve the above purpose, the utility model provides the following technical solutions:

[0006] An electromagnetic immunity reverberation chamber, comprising a shielding chamber and an adjusting plate. The adjusting plate includes a plate body. A double-axis servo motor is embedded at the midpoint of the inner bottom surface of the plate body. Activity mechanisms are movably embedded at the front end and the rear end of the upper end surface of the plate body. Activity blocks are movably embedded at the rear end on both sides of the two activity mechanisms. Limit blocks are movably embedded at the midpoint of the upper end surfaces of the four activity blocks;

[0007] A rotating mechanism is fixedly arranged at the midpoint of the bottom surface inside the shielding room. Each of the two movable mechanisms includes a movable plate, a screw rod, a threaded cylinder, a worm gear, a second servo motor, and a worm. The rotating mechanism includes an upper fixing plate, a lower fixing plate, a rotating block, a rotating plate, four second electric telescopic rods, a first servo motor, a gear, a toothed ring, and two connecting plates;

[0008] Through the above technical solution, after a dual-axis servo motor is embedded in the plate body of the adjusting plate, it can drive the movable structure threadedly sleeved on the outer surface of the fixedly arranged threaded rod to move and adjust during startup, extend and move the movable mechanism. At the same time, starting the second servo motor can drive the movably arranged movable blocks on both sides to move and adjust, so as to support and fix vehicles of different sizes. At the same time, starting the second servo motor in the rotating mechanism can drive the rotating plate and the connecting plate with the electromagnetic generating device clamped thereon to rotate, and starting the second electric telescopic rod can drive the electromagnetic generating device to perform lifting adjustment, so as to detect the vehicle.

[0009] Further, the second servo motor is embedded at the midpoint of the rear end of the inner bottom surface of the movable plate. The screw rod is rotatably arranged on one side of the rear end of the movable plate. The worm gear is fixedly sleeved at the midpoint of the outer surface of the screw rod. The worm is fixedly arranged at the output end of the second servo motor. The threaded cylinder is embedded at the midpoint of the front end surface of the movable plate;

[0010] Through the above technical solution, after the second servo motor is fixedly arranged in the movable plate, it can drive the screw rod fixedly sleeved with the worm gear to rotate by fixedly arranging the worm, so as to drive the movably sleeved movable block to move and adjust to both sides. The threaded cylinder embedded in the front end surface of the movable plate can be threadedly sleeved with the threaded rod, so as to drive the movable mechanism to move and adjust to the front and rear ends during rotation.

[0011] Further, the four second electric telescopic rods are fixedly arranged on the lower end surface of the upper fixing plate. The lower fixing plate is fixedly arranged on the lower end surfaces of the four second electric telescopic rods. The rotating block is rotatably arranged at the midpoint of the lower end surface of the lower fixing plate. The rotating plate is fixedly arranged on the lower end surface of the rotating block. The first servo motor is fixedly arranged on one side of the midpoint of the lower fixing plate. The toothed ring is fixedly sleeved on the outer surface of the lower end of the rotating block. The gear is fixedly arranged at the output end of the first servo motor. The two connecting plates are respectively fixedly arranged on both sides of the lower end surface of the rotating plate;

[0012] Through the above technical solution, the provided upper fixing plate can better fix the movable mechanism on the top surface inside the shielding room. The fixedly arranged second electric telescopic rods can drive the connecting plate and the rotating plate with the electromagnetic generating device clamped thereon to perform lifting adjustment. The provided first servo motor can drive the rotating block fixedly sleeved with the toothed ring to rotate through the fixed gear, and can also drive the rotating plate to perform rotation adjustment.

[0013] Further, an embedding groove is provided on the upper end surface of the movable block, a second hydraulic rod is fixedly arranged on the lower end surface of the limiting block, and the lower end surface of the second hydraulic rod is fixedly arranged on the upper end surface of the embedding groove;

[0014] Through the above technical solution, after the embedding groove is provided on the upper end surface of the movable block, it can be fixedly connected to the limiting block fixed with the second hydraulic rod. While accommodating the limiting block, the embedding groove can limit and fix the whole vehicle.

[0015] Further, electromagnetic generating devices are clamped and arranged at the upper end, lower end and midpoint of the opposite sides of the two connecting plates, and the toothed ring is meshed with the gear;

[0016] Through the above technical solution, after the toothed ring and the gear are meshed and connected, they can be driven to rotate by the second servo motor. At the same time, the electromagnetic generating devices clamped on the opposite sides of the connecting plates can detect the whole vehicle.

[0017] Further, a threaded groove is provided at the midpoint of one side of the movable block. The outer surfaces of both sides of the screw rod are respectively threadedly sleeved with the threaded grooves provided in the two movable blocks. Threaded rods are fixedly arranged at the output ends of both sides of the double-shaft servo motor, and the two threaded rods are respectively threadedly sleeved with the two movable mechanisms;

[0018] Through the above technical solution, after the threaded groove is provided on one side of the movable block, it can be threadedly sleeved with the screw rod. The movable block is driven to move and sleeve by the screw rod. The movable mechanism threadedly sleeved with the threaded rod can be moved and adjusted under the drive of the double-shaft servo motor.

[0019] Further, an upper door plate is hinged on the upper end of the front end surface of the shielding room, a lower door plate is rotatably arranged on the lower end of the front end surface of the shielding room, and first electric telescopic rods are fixedly arranged on the upper ends of both sides of the front end surface of the shielding room. The two first electric telescopic rods are respectively hinged to both sides of the upper door plate;

[0020] Through the above technical solution, the upper door plate hinged on the front end surface of the shielding room can be rotationally adjusted under the action of the first electric telescopic rod of the hinge, and can also drive the rotatably arranged lower door plate to rotate, so that the shielding room can be opened.

[0021] Further, first hydraulic rods are fixedly arranged at the front end and rear end of both sides of the lower end surface of the adjusting plate, and the lower end surfaces of the four first hydraulic rods are respectively fixedly arranged at the midpoint of the inner bottom surface of the shielding room;

[0022] Through the above technical solution, the first hydraulic rods provided on the lower end surface of the adjusting plate can drive the adjusting plate to perform lifting adjustment.

[0023] The utility model has the following beneficial effects:

[0024] 1. An electromagnetic interference-resistant reverberation chamber proposed by the utility model can perform rotational detection on the whole vehicle after lifting and adjustment by fixedly arranging a rotating mechanism at the midpoint of the inner top surface of the shielding chamber. By starting the second electric telescopic rod, the positions of the connecting plate and the connecting plate can be moved according to the height of the whole vehicle, thereby changing the position height of the connecting plate and the rotating plate. At the same time, starting the first servo motor fixedly arranged on one side of the lower fixing plate can drive the rotating block fixedly sleeved with a toothed ring to rotate through the fixedly arranged gear, and can also drive the rotating plate to perform rotational adjustment, so as to better drive the electromagnetic generating device arranged in a clamped manner to rotate and perform more comprehensive detection on the whole vehicle.

[0025] 2. An electromagnetic interference-resistant reverberation chamber proposed by the utility model can support the whole vehicle under the push of the first hydraulic rod by embedding an adjusting plate on the inner bottom surface of the shielding chamber. At the same time, the user can adjust the movable mechanism and the movable block according to the specifications of different whole vehicles, so as to better fix the whole vehicle. When starting the double-shaft servo motor, it can drive the two movable mechanisms to extend and adjust towards the front and rear ends. At the same time, starting the second servo motor can drive the movable blocks movably arranged on both sides to move and adjust towards both sides through the screw rod. After the adjustment is completed, the second hydraulic rod can be started to drive the limiting block to limit and fix the whole vehicle, so as to avoid the situation of the whole vehicle moving during detection. At the same time, the adjusted movable mechanism and the adjusting plate can adjust different specifications of the whole vehicle and limit and fix the whole vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is the first axonometric schematic diagram of the utility model;

[0027] Figure 2 is the second axonometric schematic diagram of the utility model;

[0028] Figure 3 is the axonometric schematic diagram of the adjusting plate and the movable mechanism of the utility model;

[0029] Figure 4 is the axonometric schematic diagram of the adjusting plate of the utility model;

[0030] Figure 5 is the sectional schematic diagram of the adjusting plate of the utility model;

[0031] Figure 6 is the axonometric schematic diagram of the movable plate of the utility model;

[0032] Figure 7 is the sectional schematic diagram of the movable plate of the utility model;

[0033] Figure 8It is an axonometric diagram of the movable block of the utility model;

[0034] Figure 9 This is an axonometric diagram of the limit block of the utility model;

[0035] Figure 10 It is an axonometric schematic diagram of the rotating mechanism of the utility model.

[0036] Legend:

[0037] 1. Shielding room; 2. Upper door panel; 3. First electric telescopic rod; 4. Lower door panel; 5. Adjustment plate; 6. Rotation mechanism; 7. Movable mechanism; 8. Movable block; 9. Limit block; 10. First hydraulic rod; 11. Embedding groove; 12. Threaded groove; 13. Second hydraulic rod; 14. Electromagnetic generating device; 501. Plate body; 502. Threaded rod; 503. Double-axis servo motor; 601. Upper fixed plate; 602. Lower fixed plate; 603. Rotation block; 604. Rotation plate; 605. Second electric telescopic rod; 606. First servo motor; 607. Gear; 608. Gear ring; 609. Connecting plate; 701. Movable plate; 702. Screw; 703. Threaded barrel; 704. Worm gear; 705. Second servo motor; 706. Worm. DETAILED DESCRIPTION

[0038] 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.

[0039] Example

[0040] Reference Figures 1-10 , the utility model provides an embodiment: an electromagnetic anti-interference reverberation chamber, including a shielding chamber 1 and an adjustment plate 5, the adjustment plate 5 includes a plate body 501, after a dual-axis servo motor 503 is embedded at the midpoint of the inner bottom surface of the plate body 501, the movable mechanism 7 with thread adjustment can be driven by a fixed threaded rod 502 to extend and adjust, the upper end surface of the plate body 501 is movably embedded with movable mechanisms 7 near the front end and the rear end, and movable blocks 8 are movably embedded at the rear ends of the two movable mechanisms 7. After the movable mechanism 7 is extended and adjusted, the movable blocks 8 on both sides can be driven by a second servo motor 705 to move and adjust, so that the whole vehicle can be limited and fixed, and the midpoints of the upper end surfaces of the four movable blocks 8 are movably embedded with limit blocks 9. The embedded limit blocks 9 can be stored in the provided embedding grooves 11, and the whole vehicle can also be limited and fixed under the action of the second hydraulic rod 13;

[0041] A rotating mechanism 6 is fixedly arranged at the midpoint of the inner bottom surface of the shielding room 1. Both movable mechanisms 7 include a movable plate 701, a screw rod 702, a threaded cylinder 703, a worm gear 704, a second servo motor 705 and a worm 706. The rotating mechanism 6 includes an upper fixing plate 601, a lower fixing plate 602, a rotating block 603, a rotating plate 604, four second electric telescopic rods 605, a first servo motor 606, a gear 607, a toothed ring 608 and two connecting plates 609.

[0042] The second servo motor 705 is embedded at the midpoint of the rear end of the inner bottom surface of the movable plate 701. The screw rod 702 is rotatably arranged on one side of the rear end of the movable plate 701. The worm gear 704 is fixedly sleeved on the midpoint of the outer surface of the screw rod 702. The worm 706 is fixedly arranged at the output end of the second servo motor 705. The threaded cylinder 703 is embedded at the midpoint of the front end surface of the movable plate 701. After the second servo motor 705 is embedded in the movable plate 701, the screw rod 702 fixedly sleeved with the worm gear 704 can be driven to rotate by the fixedly connected worm 706, so that the movable blocks 8 sleeved with threads on both sides can be driven to move and adjust. The threaded cylinder 703 embedded in the front end surface of the movable plate 701 can better thread the movable plate 701 on the outer surface of the threaded rod 502.

[0043] Four second electric telescopic rods 605 are fixedly arranged on the lower end surface of the upper fixing plate 601. The lower fixing plate 602 is fixedly arranged on the lower end surfaces of the four second electric telescopic rods 605. The rotating block 603 is fixedly arranged at the midpoint of the lower end surface of the lower fixing plate 602. The rotating plate 604 is fixedly arranged on the lower end surface of the rotating block 603. The first servo motor 606 is fixedly arranged on one side of the midpoint of the lower fixing plate 602. The toothed ring 608 is fixedly sleeved on the outer surface of the lower end of the rotating block 603. The gear 607 is fixedly arranged at the output end of the second servo motor 705. Two connecting plates 609 are respectively fixedly arranged on both sides of the lower end surface of the rotating plate 604. Starting the first telescopic rod drives the fixedly arranged connecting plates 609 and the rotating plate 604 to adjust the height. At the same time, starting the first servo motor 606 can drive the rotating plate 604 fixedly arranged on the lower end surface of the rotating block 603 to rotate and adjust, and at the same time, it can drive the electromagnetic generating device 14 clamped on the opposite side of the connecting plates 609 to rotate. At the same time, baffles are fixed on the other side of the two connecting plates 609, which can stir the generated electromagnetic field during rotation.

[0044] An embedding groove 11 is provided on the upper end surface of the movable block 8. A second hydraulic rod 13 is fixedly arranged on the lower end surface of the limiting block 9, and the lower end surface of the second hydraulic rod 13 is fixedly arranged on the upper end surface of the embedding groove 11. The provided embedding groove 11 can accommodate the limiting block 9, and at the same time, the fixedly arranged second hydraulic rod 13 can drive the limiting block 9 to perform clamping and fixing on the whole vehicle. Electromagnetic generating devices 14 are clamped and arranged at the upper end, lower end, and midpoint of the opposite sides of the two connecting plates 609. The toothed ring 608 and the gear 607 are meshed and connected. After the electromagnetic generating devices 14 are clamped and arranged on one side of the two connecting plates 609, the whole vehicle can be detected. At the same time, a baffle is fixed on the other side of the connecting plate 609, which can stir the generated electromagnetic field when the connecting plate 609 rotates, thereby improving the detection accuracy.

[0045] A threaded groove 12 is provided at the midpoint of one side of the movable block 8. The outer surfaces on both sides of the screw rod 702 are respectively threadedly sleeved with the threaded grooves 12 provided in the two movable blocks 8. Threaded rods 502 are fixedly arranged at the output ends on both sides of the double-shaft servo motor 503, and the two threaded rods 502 are respectively threadedly sleeved with the two movable mechanisms 7. After the threaded groove 12 is provided on one side of the movable block 8, it can be threadedly sleeved with the outer surface of the screw rod 702, so that the movable block 8 can be better adjusted in position. At the same time, after the threaded rod 502 is fixedly arranged at the output end of the double-shaft servo motor 503, it can drive the threadedly sleeved movable mechanism 7 to extend and move, so as to fix the whole vehicle of different specifications and sizes.

[0046] An upper door panel 2 is hinged on the upper end of the front end surface of the shielding room 1, and a lower door panel 4 is rotatably arranged on the lower end of the front end surface of the shielding room 1. First electric telescopic rods 3 are fixedly arranged on both upper ends of the two sides of the front end surface of the shielding room 1, and the two first electric telescopic rods 3 are respectively hinged to both sides of the upper door panel 2. After the upper door panel 2 and the lower door panel 4 are hinged and rotatably arranged on the front end surface of the shielding room 1, the door panels can be opened or closed under the action of the first electric telescopic rods 3. First hydraulic rods 10 are fixedly arranged at the front end and rear end of both sides of the lower end surface of the adjusting plate 5, and the lower end surfaces of the four first hydraulic rods 10 are respectively fixedly arranged at the midpoint of the inner bottom surface of the shielding room 1. The first hydraulic rods 10 fixedly arranged on the lower end surface of the adjusting plate 5 can push the adjusting plate 5 and the movable mechanism 7 to fix the whole vehicle.

[0047] Working principle: When in use, first, the user can start the first electric telescopic rod 3 to open the upper door panel 2 and the lower door panel 4. The user can extend and adjust the moving mechanism 7 movably arranged at the front and rear ends of the adjusting plate 5 according to the specifications of the whole vehicle to be detected as needed. At the same time, the user can start the second servo motor 705 to cause the moving blocks 8 movably arranged on both sides to move and adjust. Secondly, the user can move the whole vehicle to the upper end surface of the adjusted adjusting plate 5 embedded at the midpoint of the inner bottom surface of the shielding room 1. At the same time, starting the first hydraulic rod 10 can support and fix the whole vehicle, and starting the second hydraulic rod 13 can drive the limiting block 9 to limit and fix the whole vehicle. Finally, the user can start the second electric telescopic rod 605 to drive the rotating mechanism 6 to perform lifting adjustment, start the first servo motor 606 to drive the rotating plate 604 and the connecting plate 609 to rotate, and start the electromagnetic generating device 14 to generate an electromagnetic field for rotating detection again.

[0048] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An electromagnetic interference resistance reverberation chamber, comprising a shielding chamber (1) and an adjustment plate (5), characterized in that: The regulating plate (5) comprises a plate body (501), a dual-axis servo motor (503) is embedded at the midpoint of the inner bottom surface of the plate body (501), a movable mechanism (7) is movably embedded at the front end and the rear end of the upper end surface of the plate body (501), movable blocks (8) are movably embedded at the rear ends of both sides of the two movable mechanisms (7), and limit blocks (9) are movably embedded at the midpoints of the upper end surfaces of the four movable blocks (8); A rotating mechanism (6) is fixedly arranged at the midpoint of the inner bottom surface of the shielding room (1), and the two movable mechanisms (7) each include a movable plate (701), a screw (702), a threaded cylinder (703), a worm gear (704), a second servo motor (705) and a worm (706), and the rotating mechanism (6) includes an upper fixed plate (601), a lower fixed plate (602), a rotating block (603), a rotating plate (604), four second electric telescopic rods (605), a first servo motor (606), a gear (607), a gear ring (608) and two connecting plates (609).

2. The electromagnetic interference-resistant reverberation chamber according to claim 1, characterized in that: The second servo motor (705) is embedded in the inner bottom surface of the movable plate (701) at the midpoint of the rear end, the screw rod (702) is rotatably arranged on the rear end side of the movable plate (701), the worm wheel (704) is fixedly sleeved at the midpoint of the outer surface of the screw rod (702), the worm rod (706) is fixedly arranged at the output end of the second servo motor (705), and the threaded barrel (703) is embedded in the midpoint of the front end surface of the movable plate (701).

3. The electromagnetic interference-resistant reverberation chamber according to claim 1, characterized in that: The four second electric telescopic rods (605) are fixedly arranged on the lower end surface of the upper fixed plate (601), the lower fixed plate (602) is fixedly arranged on the lower end surfaces of the four second electric telescopic rods (605), the rotating block (603) is rotatably arranged at the midpoint of the lower end surface of the lower fixed plate (602), the rotating plate (604) is fixedly arranged on the lower end surface of the rotating block (603), the first servo motor (606) is fixedly arranged on one side of the midpoint of the lower fixed plate (602), the gear ring (608) is fixedly sleeved on the outer surface of the rotating block (603) near the lower end, the gear (607) is fixedly arranged at the output end of the first servo motor (606), and the two connecting plates (609) are respectively fixedly arranged on both sides of the lower end surface of the rotating plate (604).

4. The electromagnetic interference-resistant reverberation chamber according to claim 1, characterized in that: The upper end surface of the movable block (8) is provided with an embedding groove (11), the lower end surface of the limit block (9) is fixedly provided with a second hydraulic rod (13), and the lower end surface of the second hydraulic rod (13) is fixedly provided on the upper end surface of the embedding groove (11).

5. The electromagnetic interference-resistant reverberation chamber according to claim 1, characterized in that: Electromagnetic generating devices (14) are clamped and arranged at the upper end, the lower end and the midpoint of the two connecting plates (609) on one side opposite to each other, and the gear ring (608) and the gear (607) are meshingly connected.

6. The electromagnetic interference-resistant reverberation chamber according to claim 1, characterized in that: A thread groove (12) is provided at the midpoint of one side of the movable block (8), and the outer surfaces on both sides of the screw rod (702) are respectively threadedly sleeved with the thread grooves (12) provided in the two movable blocks (8). The output ends on both sides of the dual-axis servo motor (503) are fixedly provided with threaded rods (502), and the two threaded rods (502) are respectively threadedly sleeved with the two movable mechanisms (7).

7. The electromagnetic interference-resistant reverberation chamber according to claim 1, characterized in that: An upper door panel (2) is hingedly provided at the upper end of the front end surface of the shielding room (1), a lower door panel (4) is rotatably provided at the lower end of the front end surface of the shielding room (1), first electric telescopic rods (3) are fixedly provided at the upper ends of both sides of the front end surface of the shielding room (1), and the two first electric telescopic rods (3) are respectively hinged to the two sides of the upper door panel (2).

8. The electromagnetic interference-resistant reverberation chamber according to claim 1, characterized in that: First hydraulic rods (10) are fixedly arranged at the front end and the rear end on both sides of the lower end surface of the adjustment plate (5), and the lower end surfaces of the four first hydraulic rods (10) are respectively fixedly arranged at the midpoint of the inner bottom surface of the shielding room (1).

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