An electromagnetic compatibility detection device and method for electrical components

Abstract

The present invention belongs to the technical field of electromagnetic compatibility detection, in particular to an electromagnetic compatibility detection device and method for electrical components. Aiming at the problem that in the prior art, certain radiation damage will be caused to the tester during the radiation emission test of the device under test, the following scheme is now proposed, including a base. A large bearing is embedded in the middle of the upper surface of the base, and a gear tray capable of horizontal rotation is clamped in the large bearing. A bottom plate is fixed on the upper surface of the gear tray, and the same vertical support shaft rod is rotationally inserted between the bottom plate and the gear tray. The top end of the support shaft rod is fixed with a C-shaped slide rail, and the central angle of the C-shaped slide rail is equal to 270 degrees. The present invention can, during monitoring, remotely control the support shaft rod to rotate together with the folded position-changing rotating rod to adjust the relative position between the radiation tester and the device under test, and then perform remote radiation tests on all aspects of the device under test.

Description

Technical Field

[0001] The present invention relates to the technical field of electromagnetic compatibility detection, and particularly relates to an electromagnetic compatibility detection device and method for electrical components. Background Art

[0002] Currently, the number of electronic devices such as communication, medical, and industrial control devices has increased rapidly. Electromagnetic interference (EMI) between devices causes performance degradation or even failures. For example, mobile phone signals interfere with aircraft navigation systems. Therefore, international organizations have formulated electromagnetic compatibility standards, including external interference tests and anti-interference tests.

[0003] After retrieval, existing test devices all place the device under test in an anechoic chamber for various parameter tests. For example, when performing a radiation emission test on it, the tester places the device in a shielding chamber and uses various types of receiving devices to measure the electromagnetic radiation emitted by the device at different operating frequencies. The purpose of the test is to ensure that the electromagnetic radiation intensity of the device meets the standard requirements and to detect the magnitude of the radiation values at different positions of the device during operation, so as to effectively avoid activities in this area during normal use to reduce the radiation to the user. However, in the prior art, during the detection, the user needs to hold the detector and approach the device under test from different directions, and then stay for a while to record the values. This detection method requires the tester to approach, which causes greater harm to personnel engaged in long-term testing. Therefore, we propose a new device for radiation emission testing to reduce the harm to the tester. Summary of the Invention

[0004] Aiming at the technical problem that certain radiation harm will be caused to the tester when performing a radiation emission test on the device under test in the prior art, the present invention adopts the following technical solutions:

[0005] An electromagnetic compatibility detection device for electrical components, including a base. In the middle of the upper surface of the base, a large bearing is embedded. A gear tray capable of horizontal rotation is clamped in the large bearing. The upper surface of the gear tray is fixed with a bottom plate. A vertical support shaft rod is rotatably inserted through the middle of the bottom plate and the gear tray. The top of the support shaft rod is fixed with a C-shaped slide rail. The central angle of the C-shaped slide rail is equal to 270 degrees. The axis line of the C-shaped slide rail is parallel to the upper surface of the base. A bearing slider is slidably connected in the arc-shaped chute of the C-shaped slide rail. A radiation tester is fixed on the side of the bearing slider away from the bottom of the chute. At the top of the circumferential outer wall of the C-shaped slide rail, a crossbeam frame extending horizontally in the axial direction is fixed. At the end of the crossbeam frame away from the C-shaped slide rail, a suspension rod extending vertically downward is reserved. An anti-drop bearing coaxial with the C-shaped slide rail is embedded on the side of the suspension rod. A folded conversion lever extending towards the C-shaped slide rail is rotatably connected in the anti-drop bearing. The end of the folded conversion lever close to the C-shaped slide rail is fixed on the side of the bearing slider. A lifting mechanism for placing the device under test is fixed at the rear edge of the upper surface of the bottom plate.

[0006] Further, the radiation tester further includes a shaping spring fixed on the side of the bearing slider away from the bottom of the chute. The end of the shaping spring away from the bearing slider is fixed with a detection head electrically connected to the radiation tester.

[0007] Further, a protruding rib is reserved on the side of the bearing slider away from the bottom of the chute. A slot for clamping and fixing the folded conversion lever is opened on the side of the protruding rib. A plurality of balls are embedded on the side of the bearing slider close to the bottom of the C-shaped slide rail groove. A horizontal through hole is opened at the end of the crossbeam frame away from the suspension rod. The through hole is consistent with the extension direction of the crossbeam frame. A guiding insertion rod is inserted in the through hole. A counterweight is fixed at the end of the guiding insertion rod away from the suspension rod, which can increase the overall stability when the C-shaped slide rail rotates.

[0008] Further, four positioning and detecting mechanisms which are centrosymmetrically distributed are fixed on the side of the C-shaped slide rail away from the suspension rod, and two of the positioning and detecting mechanisms are respectively located directly above and directly below the C-shaped slide rail; the positioning and detecting mechanism includes an F-shaped fixing frame fixed on the side surface of the C-shaped slide rail, the F-shaped fixing frame includes a main rib plate and two parallel rib plates, a sliding abutting rod vertically extending towards the protruding rib plate is slidably connected to the middle rib plate, and an arc-shaped bottom plate is fixed at one end of the sliding abutting rod close to the bearing slider; a tightening spring is arranged between the arc-shaped bottom plate and the surface of the middle rib plate, and a second pressure sensor is fixed on the surface of the other rib plate close to the end of the sliding abutting rod; a motor frame is fixed on the side of the suspension rod away from the bearing slider, and a servo motor is fixed on the lower surface of the motor frame. The top end of the output shaft of the servo motor is fixed to the end of a folded conversion rotating rod through a coupling; thus, when in use, when the folded conversion rotating rod carries the bearing slider to move to one of the positioning and detecting mechanisms, it will push and squeeze the arc-shaped bottom plate and the sliding abutting rod, and then touch the second pressure sensor at the other end, and then send a signal that the position has reached accurately.

[0009] Further, an arc-shaped card slot is formed on the upper surface of the bottom plate away from the lifting mechanism, and the center of the arc-shaped card slot falls on the support shaft rod. The central angle of the arc-shaped card slot is equal to 180 degrees, and three equally spaced first pressure sensors are fixed at the bottom of the arc-shaped card slot. One of the first pressure sensors is aligned with the front of the device; a fixing block is fixed at the top end of the support shaft rod, and a card slot for clamping the C-shaped slide rail is formed on the upper surface of the fixing block. A downwardly extending pressing spring piece is fixed on the side of the fixing block away from the notch of the C-shaped slide rail, and a pressing wheel is fixed at the bottom end of the pressing spring piece; when the pressing wheel presses on the first pressure sensors on both sides, combined with the position change of the bearing slider, the radiation test can be carried out on both sides of the device to be measured.

[0010] Further, the lifting mechanism includes a vertical plate fixed on the upper surface of the bottom plate close to the rear side, and two vertical and parallel strip-shaped sliding holes are formed in the middle of the vertical plate. The same U-shaped bracket is slidably connected in the two strip-shaped sliding holes. The U-shaped bracket includes two inserting feet, and the two inserting feet of the U-shaped bracket pass through the corresponding strip-shaped sliding holes and are fixed to the same supporting plate; a sliding inserting hole perpendicular to the vertical plate is formed in the middle of the U-shaped bracket, and an anti-twisting abutting rod is slidably inserted in the sliding inserting hole; a vertical rack is embedded on the side of the vertical plate close to the anti-twisting abutting rod, and a spring baffle is fixed at one end of the anti-twisting abutting rod away from the rack. A return spring is fixed between the spring baffle and the U-shaped bracket; a same abutting inserting rod is inserted through the sides of the two inserting feet of the two U-shaped brackets close to the lower part of the supporting plate, and the abutting inserting rod is closely attached to the side surface of the vertical plate. Two abutting roller frames are fixed on the upper surface of the U-shaped bracket close to the anti-twisting abutting rod, and abutting wheels with horizontal axis lines are respectively arranged on the two abutting roller frames.

[0011] Furthermore, the vertical plate is located below the rack and is embedded with a socket, and the support plate is made of wood material with a plurality of strip holes in the middle of the support plate, so as to reduce the blocking and attenuation of radiation during detection and better detect the actual value.

[0012] Furthermore, a driven gear 2 is fixed to the bottom end of the supporting shaft rod; a bottom cross beam extending in the left and right directions is fixed to the lower surface of the base, and a double-station shaft rod clamp is fixed to the upper surface of one of the bottom cross beams, and a C-shaped slide groove with parallel axis lines is reserved on the front and rear sides of the double-station shaft rod clamp, and rack top rods with symmetrical tooth surfaces are slidably connected in the two C-shaped slide grooves, and one of the rack top rods is meshed with the driven gear 2; a stop block is fixed near the end of the side where the two rack top rods are close to each other, and a reset spring is provided between the stop block and the end of the double-station shaft rod clamp; the side of the base is close to the end of the two rack top rods An anti-slip bearing sleeve is embedded between the parts, and an electric push rod is rotatably connected in the anti-slip bearing sleeve, a transposition block is fixed to the end of the extension rod of the electric push rod, and arc-shaped grooves are respectively provided on the opposite sides of the transposition block, and one end of the two rack top rods close to the transposition block is fixed with a convex shaft adapted to the arc-shaped groove; a toggle rod is fixed to the tail end of the electric push rod; when it is necessary to control the rotation of the supporting shaft rod, that is, when performing radiation detection of the equipment to be tested, it is only necessary to rotate the toggle rod to hang one of the arc-shaped grooves of the transposition block on the convex shaft at the end of the rack top rod meshing with the driven gear two, and then control the extension rod of the electric push rod to extend.

[0013] Furthermore, an inner gear ring is reserved near the bottom end of the circumferential inner wall of the gear tray, and a support ring is fixed to the fixed inner wall of the base, a bearing frame is fixed to the lower surface of the support ring, a transmission rod is provided in the middle of the bearing frame, and a pinion 1 and a driven gear 1 are fixed to the upper and lower ends of the transmission rod respectively; the pinion 1 and the inner gear ring are meshed with each other; through the set gear tray, when anti-interference detection is required during use, the device can be actively controlled to rotate to detect the shielding capability of each position thereof.

[0014] A method for detecting electromagnetic compatibility of electrical components, comprising the following steps:

[0015] Step 1: Adjust the height of the pallet according to the size of the device under test, ensuring that the center of the device under test is located in the middle of the C-shaped slide rail. Then perform an external interference test on it:

[0016] First, move the toggle lever so that the displacement block at the end of the electric push rod extension rod is buckled with the end of the rack top rod that drives the driven gear 2 to rotate; then remotely control the support shaft rod to rotate together with the folding displacement rod to adjust the relative position of the radiation tester and the device under test, and then perform remote radiation testing on all directions of the device under test;

[0017] Step 2: Pull the spring appropriately according to the size of the device to be tested, so that the detection head is as close to the device as possible. Then, the radiation values at different distances can be detected as a comparison reference.

[0018] Step 3: When conducting the anti-interference test again, rotate the toggle lever 180 degrees in the opposite direction to lock the other rack top rod, and then control the extension rod of the electric push rod to extend, and the entire device rotates horizontally to detect its shielding capabilities at various positions.

[0019] The beneficial effects of the present invention are:

[0020] 1. By setting up a C-shaped slide rail that can rotate 180 degrees around the lifting mechanism as a whole and a radiation tester fixed on the load-bearing slider, during monitoring, the relative position of the radiation tester and the device under test can be adjusted by remotely controlling the support shaft rod and rotating the folding transposition rod together, and then remote radiation testing can be performed on all directions of the device under test.

[0021] 2. By setting a detection head fixed on the end of the shaped spring, during the detection, the shaped spring can be pulled appropriately according to the size of the device to be tested, so that the detection head can be as close to the device to be tested as possible, and then the radiation values at different distances can be detected as a comparison reference.

[0022] 3. Through the setting of the lifting mechanism, not only can the height of the pallet be adjusted according to the size of the device to be tested so that the device to be tested falls exactly at the detection center, but also space can be reserved under the device to be tested to perform radiation testing on the space below it. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the overall structure of an electromagnetic compatibility testing device for electrical components during testing, as proposed by the present invention;

[0024] Figure 2 This is a schematic diagram of the rear structure of an electromagnetic compatibility testing device for electrical components proposed by the present invention;

[0025] Figure 3 This is a bottom-up perspective structural diagram of an electromagnetic compatibility testing device for electrical components proposed by the present invention;

[0026] Figure 4 This is a side view of an electromagnetic compatibility testing device for electrical components proposed by the present invention;

[0027] Figure 5 This is a schematic diagram of the overall structure of an electromagnetic compatibility testing device for electrical components proposed by the present invention when testing the side of a device to be tested;

[0028] Figure 6This is a schematic diagram of the overall structure of an orientation conversion mechanism in an electromagnetic compatibility testing device for electrical components proposed by the present invention;

[0029] Figure 7 This is an assembly diagram of a C-shaped slide rail and a load-bearing slider in an electromagnetic compatibility testing device for electrical components proposed by the present invention;

[0030] Figure 8 This is an assembly diagram of a gear tray and a support ring in an electromagnetic compatibility testing device for electrical components proposed by the present invention;

[0031] Figure 9 This is a schematic diagram of a half-section three-dimensional structure of an installed gear tray in an electromagnetic compatibility testing device for electrical components proposed by the present invention;

[0032] Figure 10 This is an assembly diagram of a lifting mechanism in an electromagnetic compatibility testing device for electrical components proposed by the present invention;

[0033] Figure 11 An electromagnetic compatibility detection device for electrical components proposed by the present invention Figure 6 Schematic diagram of the enlarged structure at point A in the middle.

[0034] In the figure: 1. Base; 2. Large bearing; 3. Bottom plate; 4. Lifting mechanism; 401. Rack; 402. Bar-shaped sliding hole; 403. Tightening rod; 404. U-shaped bracket; 405. Wheel; 406. Return spring; 407. Anti-twist rod; 408. Sliding hole; 5. Counterweight; 6. Guide rod; 7. Crossbeam; 701. Hanging rod; 8. C-shaped slide rail; 9. Servo motor; 10. Folding transposition rod; 11. Radiation tester; 1101. Detection head; 12. Support plate; 13. Positioning detection mechanism; 131. Arc-shaped bottom plate; 132. Sliding rod; 133. F-shaped fixing frame; 134. Clamping spring; 135. Pressure sensor 2; 14. Gear tray; 141. Inner gear ring; 15. Fixing block; 16. Arc-shaped slot; 17. Anti-slip bearing sleeve; 18. Electric push rod; 19. Toggle lever; 20. Shifting block; 21. Rack top rod; 22. Driven gear 1; 23. Bottom crossbeam; 24. Load-bearing slider; 25. Bearing frame; 251. Transmission rod; 26. Dual-position shaft rod clamp; 27. Support ring; 28. Driven gear 2; 29. Support shaft rod; 30. Press-down spring sheet; 31. Pressure sensor 1. DETAILED DESCRIPTION

[0035] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0036] In this embodiment, refer to Figures 1 - 11, An electromagnetic compatibility detection device for electrical components, including a base 1. In the middle of the upper surface of the base 1, a large bearing 2 is embedded. And a gear tray 14 capable of horizontal rotation is clamped in the large bearing 2. The upper surface of the gear tray 14 is fixed with a bottom plate 3. And a same vertical support shaft rod 29 is rotationally inserted in the middle of the bottom plate 3 and the gear tray 14. The top of the support shaft rod 29 is fixed with a C-shaped slide rail 8. The central angle of the C-shaped slide rail 8 is equal to 270 degrees. The axis line of the C-shaped slide rail 8 is parallel to the upper surface of the base 1. And a load-bearing slider 24 is slidably connected in the arc-shaped chute of the C-shaped slide rail 8. On the side of the load-bearing slider 24 away from the bottom of the chute, a radiation tester 11 is fixed. At the top of the circumferential outer wall of the C-shaped slide rail 8, a cross beam frame 7 extending horizontally in the axial direction is fixed. And at the end of the cross beam frame 7 away from the C-shaped slide rail 8, a suspension rod 701 extending vertically downward is reserved. An anti-slip bearing coaxial with the C-shaped slide rail 8 is embedded on the side of the suspension rod 701. And a folded conversion rotating rod 10 extending towards the C-shaped slide rail 8 is rotatably connected in the anti-slip bearing. And at the end of the folded conversion rotating rod 10 close to the C-shaped slide rail 8, it is fixed on the side of the load-bearing slider 24. On the upper surface of the bottom plate 3, close to the rear side edge, a lifting mechanism 4 for placing the device under test is fixed. By setting the C-shaped slide rail 8 that can rotate 180 degrees as a whole around the lifting mechanism 4 and the radiation tester 11 fixed on the load-bearing slider 24, during monitoring, only need to remotely control the support shaft rod 29 to rotate together with the folded conversion rotating rod 10 to adjust the relative position between the radiation tester 11 and the device under test, and then remotely perform radiation tests on all directions of the device under test.

[0037] In the present invention, the radiation tester 11 further includes a shaping spring fixed on the side of the load-bearing slider 24 away from the bottom of the chute. And at the end of the shaping spring away from the load-bearing slider 24, a detection head 1101 electrically connected to the radiation tester 11 is fixed. By setting the detection head 1101 fixed at the end of the shaping spring, during detection, the shaping spring can be appropriately pulled according to the volume of the device under test to make the detection head 1101 as close as possible to the device under test, and then the radiation values at different distances can be detected as a comparison reference.

[0038] Refer to Figure 11 , On the side of the load-bearing slider 24 away from the bottom of the chute, a protruding plate rib is reserved. And a slot for clamping and fixing the folded conversion rotating rod 10 is opened on the side of the protruding plate rib. On the side of the load-bearing slider 24 close to the bottom of the C-shaped slide rail 8, a plurality of balls are embedded. At the end of the cross beam frame 7 away from the suspension rod 701, a horizontal through hole is opened. The through hole is consistent with the extending direction of the cross beam frame 7. And a guiding insertion rod 6 is inserted in the through hole. At the end of the guiding insertion rod 6 away from the suspension rod 701, a counterweight 5 is fixed. It can increase the overall stability when the C-shaped slide rail 8 rotates.

[0039] Refer to Figure 1 , Figure 2 , Figure 7 ,Figure 11 On the side of the C-shaped slide rail 8 away from the suspension rod 701, four positioning and detecting mechanisms 13 are fixed and distributed symmetrically about the center. Among them, two positioning and detecting mechanisms 13 are respectively located directly above and directly below the C-shaped slide rail 8. The positioning and detecting mechanism 13 includes an F-shaped fixing bracket 133 fixed on the side surface of the C-shaped slide rail 8. The F-shaped fixing bracket 133 includes a main rib plate and two parallel rib plates. A sliding abutting rod 132 extending vertically towards the protruding rib plate is slidably connected to the middle rib plate. An arc-shaped bottom plate 131 is fixed to the end of the sliding abutting rod 132 close to the bearing slider 24. A pressing spring 134 is arranged between the arc-shaped bottom plate 131 and the surface of the middle rib plate. A second pressure sensor 135 is fixed to the surface of the other rib plate close to the end of the sliding abutting rod 132. A motor bracket is fixed to the side of the suspension rod 701 away from the bearing slider 24. A servo motor 9 is fixed to the lower surface of the motor bracket. The top end of the output shaft of the servo motor 9 is fixed to the end of the folded conversion rotating rod 10 through a coupling. Thus, during use, when the folded conversion rotating rod 10 carries the bearing slider 24 to move to one of the positioning and detecting mechanisms 13, it will push and squeeze the arc-shaped bottom plate 131 and the sliding abutting rod 132, and then trigger the second pressure sensor 135 at the other end, and then send a signal indicating that the position has been accurately reached.

[0040] Refer to Figure 1 and Figure 5 On the upper surface of the bottom plate 3 away from the lifting mechanism 4, an arc-shaped card slot 16 is opened. The center of the arc-shaped card slot 16 falls on the support shaft rod 29. The central angle of the arc-shaped card slot 16 is 180 degrees. Three equally spaced first pressure sensors 31 are fixed to the bottom of the arc-shaped card slot 16. One of the first pressure sensors 31 is aligned with the front of the device. A fixed card block 15 is fixed to the top end of the support shaft rod 29. A card slot for clamping the C-shaped slide rail 8 is opened on the upper surface of the fixed card block 15. A downward-sloping pressing spring piece 30 is fixed to the side of the fixed card block 15 away from the notch of the C-shaped slide rail 8. A pressing wheel is fixed to the bottom end of the pressing spring piece 30. When the pressing wheel presses on the first pressure sensors 31 on both sides, combined with the position change of the bearing slider 24, the left and right sides of the device to be measured can be radiated and tested.

[0041] Refer to Figure 5 、 Figures 9 - 10, the lifting mechanism 4 includes a vertical plate fixed to the upper surface of the bottom plate 3 near the rear side, and two vertical and parallel strip-shaped sliding holes 402 are opened near the middle of the vertical plate. The same U-shaped bracket 404 is slidably connected in the two strip-shaped sliding holes 402. The U-shaped bracket 404 includes two insertion feet, and the two insertion feet of the U-shaped bracket 404 pass through the corresponding strip-shaped sliding holes 402 and are fixed with the same support plate 12; a sliding insertion hole 408 perpendicular to the vertical plate is opened in the middle of the U-shaped bracket 404, and an anti-torsion resisting rod 407 is slidably inserted in the sliding insertion hole 408; a vertical rack 401 is embedded on one side of the vertical plate close to the anti-torsion resisting rod 407, and a spring baffle is fixed to the end of the anti-torsion resisting rod 407 away from the rack 401, and a return spring 406 is fixed between the spring baffle and the U-shaped bracket 404; the same pressing insertion rod 403 is inserted through the sides of the two insertion feet of the two U-shaped brackets 404 near the lower part of the support plate 12, and the pressing insertion rod 403 is closely attached to the side surface of the vertical plate. Two pressing roller brackets are fixed on the upper surface of one side of the U-shaped bracket 404 close to the anti-torsion resisting rod 407, and pressing wheels 405 with horizontal axis lines are respectively arranged on the two pressing roller brackets; by providing the lifting mechanism 4, when it is necessary to control the lifting of the support plate 12, axially pull the anti-torsion resisting rod 407 to make it disengage from the locking with the rack 401, and then manually lift the U-shaped bracket 404 to raise the whole support plate 12; not only can the height of the support plate 12 be adjusted according to the size of the device to be tested, so that the device to be tested just falls on the detection center position, but also the space below the device to be tested can be reserved to perform radiation testing on the space below it.

[0042] In the present invention, a socket is embedded below the rack 401 on the vertical plate, and the support plate 12 is made of wood material, and a plurality of strip holes are opened in the middle of the support plate 12; to reduce the blocking attenuation of radiation during detection and more accurately detect the actual value.

[0043] Refer to Figure 3 、 Figure 6 、 Figures 8 - 9, a driven gear 28 is fixed to the bottom end of the supporting shaft rod 29; a bottom cross beam 23 extending in the left and right directions is fixed to the lower surface of the base 1, and a double-station shaft rod clamp 26 is fixed to the upper surface of one of the bottom cross beams 23, and a C-shaped slide groove with parallel axis lines is reserved on the front and rear sides of the double-station shaft rod clamp 26, and a rack top rod 21 with symmetrical tooth surfaces is slidably connected in the two C-shaped slide grooves, one of which is meshed with the driven gear 28; a stopper is fixed on the side close to the end of the two rack top rods 21, and a reset spring is provided between the stopper and the end of the double-station shaft rod clamp 26; an anti-lock brake is embedded between the ends of the two rack top rods 21 on the side of the base 1 The anti-slip bearing sleeve 17 is rotatably connected to the anti-slip bearing sleeve 17, and the electric push rod 18 is fixed to the end of the extension rod of the electric push rod 18 with a transposition block 20, and the opposite sides of the transposition block 20 are respectively provided with arc-shaped grooves, and the two rack top rods 21 are fixed with convex shafts adapted to the arc-shaped grooves at one end close to the transposition block 20; the tail end of the electric push rod 18 is fixed with a toggle rod 19; when it is necessary to control the rotation of the supporting shaft rod 29, that is, when performing radiation detection of the equipment to be tested, it is only necessary to rotate the toggle rod 19 to hang one of the arc-shaped grooves of the transposition block 20 on the convex shaft at the end of the rack top rod 21 that is meshed with the driven gear 2 28, and then control the extension rod of the electric push rod 18 to extend.

[0044] Reference Figures 8 - 9 , an inner gear ring 141 is reserved near the bottom end of the circumferential inner wall of the gear tray 14, and a supporting ring 27 is fixed to the fixed inner wall of the base 1, and a bearing frame 25 is fixed to the lower surface of the supporting ring 27. A transmission rod 251 is provided in the middle of the bearing frame 25, and a pinion 1 and a driven gear 1 22 are fixed at the upper and lower ends of the transmission rod 251 respectively; the pinion 1 and the inner gear ring 141 are meshed with each other; the driven gear 1 22 is meshed with another rack top rod 21. When it is necessary to drive the inner gear ring 141 to rotate, it is only necessary to reversely shift the toggle rod 19 180 degrees to make the shifting block 20 at the end of the electric push rod 18 stuck in the end of the rack top rod 21 meshing with the driven gear 1 22, and then convert the linear motion of the extension rod of the electric push rod 18 into the circular motion of the driven gear 1 22; through the provision of the gear tray 14, when it is used, when it is necessary to perform anti-interference detection on it, the active control device can be rotated to detect the shielding ability of its various positions.

[0045] A method for detecting electromagnetic compatibility of electrical components, comprising the following steps:

[0046] Step 1: Adjust the height of the support plate 12 according to the size of the device under test, ensuring that the center of the device under test is located in the middle of the C-shaped slide rail 8, and then perform an external interference test on it:

[0047] First, move the toggle lever 19 so that the position-changing abutting block 20 at the end of the extension rod of the electric push rod 18 buckles on the end of the rack ejector rod 21 that drives the rotation of the driven gear two 28; at this time, remotely control the support shaft rod 29 to rotate together with the folded position-changing rotating rod 10 to adjust the relative position between the radiation tester 11 and the device to be tested, and then perform remote radiation testing on each azimuth of the device to be tested;

[0048] Step 2: Appropriately pull the shaping spring according to the volume of the device to be tested, so as to bring the detection head 1101 as close as possible to the device to be tested, and then be able to detect the radiation values at different distances as a comparison reference;

[0049] Step 3: When performing anti-interference testing later, rotate the toggle lever 19 180 degrees in the reverse direction to block the other rack ejector rod 21, and then control the extension rod of the electric push rod 18 to extend, and the device rotates horizontally as a whole to detect the shielding ability of each position.

[0050] As described above, it is only the preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. An electromagnetic compatibility detection device for electrical components, comprising a base (1). A large bearing (2) is embedded in the middle of the upper surface of the base (1), and a gear tray (14) is clamped in the large bearing (2). It is characterized in that, The upper surface of the gear tray (14) is fixed with a bottom plate (3), and the middle of the bottom plate (3) and the gear tray (14) is rotatably plugged with a same vertical support shaft rod (29), the top of the support shaft rod (29) is fixed with a C-shaped slide rail (8), the center angle of the C-shaped slide rail (8) is equal to 270 degrees, the axis of the C-shaped slide rail (8) is parallel to the upper surface of the base (1), and the arc-shaped slide groove of the C-shaped slide rail (8) is slidably connected with a bearing slider (24), and the side of the bearing slider (24) away from the bottom of the groove is fixed with a radiation tester (11); the circumferential outer wall of the C-shaped slide rail (8) is located at A horizontally axially extending crossbeam frame (7) is fixed at the top, and a vertically downwardly extending suspension rod (701) is reserved at one end of the crossbeam frame (7) away from the C-shaped slide rail (8), and an anti-slip bearing coaxial with the C-shaped slide rail (8) is embedded on the side of the suspension rod (701), and a folding transfer rod (10) extending toward the C-shaped slide rail (8) is rotatably connected in the anti-slip bearing; and the folding transfer rod (10) is fixed to the side of the bearing slider (24) at one end close to the C-shaped slide rail (8); and a lifting mechanism (4) for placing the device to be tested is fixed on the upper surface of the base plate (3) near the rear edge.

2. The electromagnetic compatibility testing device for electrical components according to claim 1, characterized in that: The radiation tester (11) further comprises a shaping spring fixed to a side of the bearing slider (24) away from the bottom of the groove, and a detection head (1101) electrically connected to the radiation tester (11) is fixed to one end of the shaping spring away from the bearing slider (24).

3. An electromagnetic compatibility detection device for an electrical component according to claim 1, characterized in that, A protruding plate rib is reserved on the side of the bearing slider (24) away from the bottom of the groove, and a slot for clamping and fixing the folding shift rod (10) is opened on the side of the protruding plate rib, and a plurality of balls are embedded on the side of the bearing slider (24) close to the bottom of the groove of the C-shaped slide rail (8); a horizontal through hole is opened at one end of the beam frame (7) away from the suspension rod (701), and the through hole is consistent with the extension direction of the beam frame (7), and a guide rod (6) is inserted into the through hole, and a counterweight block (5) is fixed to the end of the guide rod (6) away from the suspension rod (701).

4. An electromagnetic compatibility detection device for an electrical component according to claim 3, characterized in that, On one side of the C-shaped slide rail (8) away from the suspension rod (701), four positioning and detecting mechanisms (13) are symmetrically distributed around the center, and two of the positioning and detecting mechanisms (13) are respectively located directly above and directly below the C-shaped slide rail (8); the positioning and detecting mechanism (13) includes an F-shaped fixing frame (133) fixed on the side surface of the C-shaped slide rail (8), the F-shaped fixing frame (133) includes a main rib plate and two parallel rib plates, a sliding abutting rod (132) vertically extending towards the protruding rib plate is slidably connected to the middle rib plate, and an arc-shaped bottom plate (131) is fixed at one end of the sliding abutting rod (132) close to the bearing slider (24); a tightening spring (134) is arranged between the arc-shaped bottom plate (131) and the surface of the middle rib plate, and a second pressure sensor (135) is fixed on the surface of the other rib plate close to the end of the sliding abutting rod (132); on one side of the suspension rod (701) away from the bearing slider (24), a motor frame is fixed, and a servo motor (9) is fixed on the lower surface of the motor frame, and the top end of the output shaft of the servo motor (9) is fixed to the end of a folded conversion rotating rod (10) through a coupling.

5. An electromagnetic compatibility detection device for electrical components according to claim 4, characterized in that On one side of the upper surface of the bottom plate (3) away from the lifting mechanism (4), an arc-shaped card slot (16) is opened, and the center of the arc-shaped card slot (16) falls on the support shaft rod (29), the central angle of the arc-shaped card slot (16) is equal to 180 degrees, and three equally spaced first pressure sensors (31) are fixed at the bottom of the arc-shaped card slot (16), and one of the first pressure sensors (31) is aligned with the front of the device; a fixed clamping block (15) is fixed at the top end of the support shaft rod (29), and a card slot for clamping the C-shaped slide rail (8) is opened on the upper surface of the fixed clamping block (15), a downwardly extending pressing spring piece (30) is fixed on one side of the fixed clamping block (15) away from the notch of the C-shaped slide rail (8), and a pressing wheel is fixed at the bottom end of the pressing spring piece (30).

6. An electromagnetic compatibility detection device for an electrical component according to claim 1, characterized in that, The lifting mechanism (4) includes a vertical plate fixed on the upper surface of the bottom plate (3) near the rear side, and the vertical plate has two vertical and mutually parallel strip sliding holes (402) near the middle, and the two strip sliding holes (402) are slidably connected to the same U-shaped bracket (404), the U-shaped bracket (404) includes two pins, and the two pins of the U-shaped bracket (404) pass through the corresponding strip sliding holes (402) to fix the same bracket (12); the middle of the U-shaped bracket (404) is provided with a sliding hole (408) perpendicular to the vertical plate, and the sliding hole (408) is slidably connected to an anti-twist rod (407); the vertical plate is close to A vertical rack (401) is embedded on one side of the anti-twist rod (407), and a spring baffle is fixed on one end of the anti-twist rod (407) away from the rack (401), and a return spring (406) is fixed between the spring baffle and the U-shaped bracket (404); the sides of the two pins of the two U-shaped brackets (404) are interspersed with a same tightening rod (403) near the bottom of the support plate (12), and the tightening rod (403) is closely attached to the side of the vertical plate, and two roller frames are fixed on the upper surface of the side of the U-shaped bracket (404) near the anti-twist rod (407), and the two roller frames are respectively provided with a pulley (405) with a horizontal axis.

7. The electromagnetic compatibility testing device for electrical components according to claim 6, characterized in that: The vertical plate is located below the rack (401) and is embedded with a socket, and the support plate (12) is made of wood material, and a plurality of strip holes are opened in the middle of the support plate (12).

8. An electromagnetic compatibility detection device for an electrical component according to claim 1, characterized in that, The bottom end of the supporting shaft rod (29) is fixed with a driven gear 2 (28); the lower surface of the base (1) is fixed with a bottom crossbeam (23) extending in the left and right directions, and the upper surface of one of the bottom crossbeams (23) is fixed with a double-station shaft rod clamp (26), and the front and rear sides of the double-station shaft rod clamp (26) are respectively reserved with C-shaped sliding grooves with mutually parallel axis lines, and the two C-shaped sliding grooves are respectively slidably connected with rack top rods (21) with mutually symmetrical tooth surfaces, and one of the rack top rods (21) is meshed with the driven gear 2 (28); a stopper is fixed near the end of the side close to the two rack top rods (21), and A return spring is provided between the end of the stop block and the double-station shaft clamp (26); an anti-slip bearing sleeve (17) is embedded between the ends of the two rack push rods (21) on the side of the base (1), and an electric push rod (18) is rotatably connected in the anti-slip bearing sleeve (17); a transposition block (20) is fixed to the end of the extension rod of the electric push rod (18), and arc-shaped grooves are respectively provided on the opposite sides of the transposition block (20); a convex shaft adapted to the arc-shaped groove is fixed to one end of the two rack push rods (21) close to the transposition block (20); a toggle rod (19) is fixed to the tail end of the electric push rod (18).

9. An electromagnetic compatibility detection device for electrical components according to claim 8, characterized in that, An inner gear ring (141) is reserved near the bottom of the circumferential inner wall of the gear tray (14), and a support ring (27) is fixed to the fixed inner wall of the base (1). A bearing frame (25) is fixed to the lower surface of the support ring (27). A transmission rod (251) is provided in the middle of the bearing frame (25), and a pinion 1 and a driven gear 1 (22) are fixed to the upper and lower ends of the transmission rod (251); the pinion 1 and the inner gear ring (141) are meshed with each other, and the driven gear 1 (22) is meshed with the other rack top rod (21).

10. A method for electromagnetic compatibility testing of electrical components, including an electromagnetic compatibility testing device for electrical components as described in claim 9, characterized in that, The following steps are involved: Step 1: Adjust the height of the support plate (12) according to the size of the device to be tested, ensuring that the center of the device to be tested is located in the middle of the C-shaped slide rail (8), and then perform an external interference test on it: First, the toggle rod (19) is moved so that the transposition stopper (20) at the end of the extension rod of the electric push rod (18) is buckled on the end of the rack top rod (21) that drives the driven gear 2 (28) to rotate; at this time, the support shaft rod (29) is remotely controlled to rotate together with the folding transposition rotating rod (10) to adjust the relative position of the radiation tester (11) and the device to be tested, and then remote radiation testing is performed on various directions of the device to be tested; Step 2: Pull the shaped spring appropriately according to the size of the device to be tested, so as to bring the detection head (1101) as close as possible to the device to be tested, and then detect the radiation values at different distances as a comparison reference; Step 3: When performing the anti-interference test again, rotate the toggle rod (19) 180 degrees in the opposite direction to lock the other rack top rod (21), and then control the extension rod of the electric push rod (18) to extend, and the entire device rotates horizontally to detect the shielding ability of each position.

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