Electrical component electromagnetic compatibility detection device and method

Abstract

The invention belongs to the technical field of electromagnetic compatibility detection, particularly relates to an electromagnetic compatibility detection device and method for an electrical component, and aims to solve the problem that certain radiation injury is caused to a tester when a to-be-detected device is subjected to a radiation emission test in the prior art. A large bearing is embedded in the middle of the upper surface of the base, a gear tray capable of rotating horizontally is clamped in the large bearing, a bottom plate is fixed to the upper surface of the gear tray, the same vertical supporting shaft bar is rotationally inserted between the bottom plate and the gear tray, and a C-shaped sliding rail is fixed to the top end of the supporting shaft bar. The central angle of the C-shaped sliding rail is equal to 270 degrees. During monitoring, the relative position of the radiation tester and the to-be-tested equipment can be adjusted only by remotely controlling the supporting shaft rod to be matched with the zigzag transposition rotating rod to rotate together, and then remote radiation testing is carried out on all directions of the to-be-tested equipment.

Description

Technical Field

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

[0002] At present, the number of electronic equipment such as communication, medical and industrial control equipment has increased dramatically, and electromagnetic interference (EMI) between equipment has led to performance degradation or even failure. For example, mobile phone signals interfere with aircraft navigation systems. As a result, international organizations have formulated electromagnetic compatibility standards, including external interference tests and anti-interference tests.

[0003] After searching, it is found that the existing test devices all put the device to be tested into an electromagnetic darkroom to test various parameters. For example, when performing radiation emission tests, the tester places the device in a shielded room and uses various types of receiving devices to measure the electromagnetic radiation emitted by the device at different working frequency bands. The purpose of the test is to ensure that the electromagnetic radiation intensity of the device meets the standard requirements, and to detect the size of the radiation value at different positions of the device when it is working, so as to effectively avoid activities in this area during normal use to reduce radiation to the user; however, in the prior art, when conducting the test, the user needs to hold the detector close to the device to be tested from different directions, and then stay for a while to record the value. This detection method requires the tester to get close, which is more harmful to people who have been engaged in testing for a long time. Therefore, we propose a new device for radiation emission testing to reduce the harm to the tester. Summary of the invention

[0004] In view of the technical problem in the prior art that radiation emission testing of the device to be tested may cause certain radiation damage to the tester, the present invention adopts the following technical solution: An electromagnetic compatibility detection device for electrical components comprises 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 to the upper surface of the gear tray, and a vertical support shaft rod is rotatably plugged between the bottom plate and the gear tray, a C-shaped slide rail is fixed to the top of the support shaft rod, the center 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, and a load-bearing slider is slidably connected in the arc-shaped slide groove of the C-shaped slide rail, and the load-bearing slider is away from the groove. A radiation tester is fixed on one side of the bottom; a horizontally axially extending crossbeam frame is fixed at the top end of the circumferential outer wall of the C-shaped slide rail, and a suspension rod extending vertically downward is reserved at the end of the crossbeam frame away from the C-shaped slide rail, and an anti-slip bearing coaxial with the C-shaped slide rail is embedded on the side of the suspension rod, and a folding transfer rod extending toward the C-shaped slide rail is rotatably connected in the anti-slip bearing; and the end of the folding transfer rod close to the C-shaped slide rail is fixed to the side of the load-bearing slider; a lifting mechanism for placing the device to be tested is fixed on the upper surface of the base plate near the rear edge.

[0005] Furthermore, the radiation tester also includes a shaping spring fixed to a side of the bearing slide away from the bottom of the groove, and a detection head electrically connected to the radiation tester is fixed to one end of the shaping spring away from the bearing slide.

[0006] Furthermore, a protruding plate rib is reserved on the side of the bearing slider away from the bottom of the groove, and a slot for clamping and fixing the folding shift rod is opened on the side of the protruding plate rib, and a plurality of ball bearings 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 beam frame away from the suspension rod, the through hole is consistent with the extension direction of the beam frame, and a guide rod is inserted in the through hole, and a counterweight block is fixed on the end of the guide rod away from the suspension rod; the overall stability of the C-shaped slide rail during rotation can be increased.

[0007] Furthermore, four positioning detection mechanisms are fixed on the side of the C-shaped slide rail away from the suspension rod and are symmetrically distributed, and two of the positioning detection mechanisms are respectively located directly above and directly below the C-shaped slide rail; the positioning detection mechanism includes an F-shaped fixing frame fixed to the side of the C-shaped slide rail, and the F-shaped fixing frame includes a main rib plate and two mutually parallel support plates, and a sliding abutment rod extending vertically to the protruding rib plate is slidably connected to the middle support plate, and an arc-shaped bottom plate is fixed to the end of the sliding abutment rod close to the load-bearing slider; a arc-shaped bottom plate is set between the arc-shaped bottom plate and the surface of the middle support plate There is a tightening spring, and a second pressure sensor is fixed on the surface of the other support plate near the end of the sliding push rod; a motor frame is fixed on the side of the suspension rod away from the load-bearing slider, and a servo motor is fixed on the lower surface of the motor frame, and the top end of the output shaft of the servo motor is fixed to the end of the folding and shifting rod through a coupling; therefore, when in use, when the folding and shifting rod carries the load-bearing slider to one of the positioning detection mechanisms, it will push the arc bottom plate and the sliding push rod, and then touch the second pressure sensor at the other end, and then send out a signal that the position has been accurately reached.

[0008] Furthermore, an arc-shaped groove is opened on the side of the upper surface of the base plate away from the lifting mechanism, and the center of the arc-shaped groove falls on the supporting shaft rod, the central angle of the arc-shaped groove is equal to 180 degrees, and three equally distributed pressure sensors are fixed to the bottom of the arc-shaped groove, one of which is aligned with the front of the device; a fixed block is fixed to the top of the supporting shaft rod, and a groove for clamping the C-shaped slide rail is opened on the upper surface of the fixed block, and a downward pressure spring sheet extending obliquely downward is fixed on the side of the fixed block away from the notch of the C-shaped slide rail, and a pressure wheel is fixed to the bottom end of the downward pressure spring sheet; when the pressure wheel presses on the pressure sensors on both sides, the radiation test can be performed on the left and right sides of the equipment to be tested in conjunction with the position change of the load-bearing slider.

[0009] The cam is an angular track that is formed on a pair of camshafts, each of which is adapted to move along a camshaft with two legs extending along the length of the U-shaped track.

[0010] 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.

[0011] 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 stopper is fixed near the end on one side where the two rack top rods are close to each other, and a reset tension spring is arranged between the stopper 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 arranged 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.

[0012] 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 arranged in the middle of the bearing frame, and a pinion 1 and a driven gear 1 are respectively fixed to the upper and lower ends of the transmission rod; 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.

[0013] A method for detecting electromagnetic compatibility of electrical components comprises the following steps: Step 1: Adjust the height of the pallet according to the size of the device to be tested, ensure that the center of the device to be tested is located in the middle of the C-shaped slide rail, and then perform an external interference test on it: First, move the toggle rod so that the transposition stopper at the end of the electric push rod extension rod is buckled on the end of the rack top rod that drives the driven gear 2 to rotate; at this time, remotely control the support shaft rod to rotate together with the folding transposition rotating rod to adjust the relative position of the radiation tester and the device to be tested, and then perform remote radiation testing on various positions of the device to be tested; Step 2: Pull the shaping spring appropriately according to the size of the device to be tested, so as to bring the detection head as close to the device to be tested as possible, and then detect the radiation values ​​at different distances as a comparison reference; Step 3: When conducting the anti-interference test again, turn 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 whole device rotates horizontally to detect the shielding capability of each position.

[0014] The beneficial effects of the present invention are: 1. By setting 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, it is only necessary to remotely control the support shaft rod and the folding transposition rod to rotate together to adjust the relative position of the radiation tester and the device to be tested, and then perform remote radiation testing on all directions of the device to be tested.

[0015] 2. By setting a detection head fixed on the end of the shaped spring, the shaped spring can be appropriately pulled according to the size of the device to be tested during testing, so as to bring the detection head as close to the device to be tested as possible, and then the radiation values ​​at different distances can be detected as a comparative reference.

[0016] 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

[0017] Figure 1 This is a schematic diagram of the overall structure of an electromagnetic compatibility testing device for electrical components during testing proposed by the present invention; 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; Figure 3 This is a bottom-up stereoscopic structural diagram of an electromagnetic compatibility testing device for electrical components proposed by the present invention; Figure 4 A side view of an electromagnetic compatibility testing device for electrical components proposed by the present invention; 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; Figure 6 This is a schematic diagram of the overall structure of an orientation change mechanism in an electromagnetic compatibility detection device for electrical components proposed by the present invention; Figure 7 This is an assembly diagram of a C-shaped slide rail and a load-bearing slide block in an electromagnetic compatibility testing device for electrical components proposed by the present invention; 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; Fig. 9 It is a schematic diagram of a half-section three-dimensional structure of a gear tray installed in an electromagnetic compatibility testing device for electrical components proposed by the present invention; Fig.10 It is an assembly diagram of a lifting mechanism in an electromagnetic compatibility testing device for electrical components proposed by the present invention; Fig.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.

[0018] In the figure: 1, base; 2, large bearing; 3, bottom plate; 4, lifting mechanism; 401, rack; 402, strip sliding hole; 403, tight plug rod; 404, U-shaped bracket; 405, wheel; 406, reset spring; 407, anti-twist rod; 408, sliding hole; 5, counterweight; 6, guide rod; 7, crossbeam; 701, suspension 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 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. Fixed block; 16. Arc-shaped slot; 17. Anti-slip bearing sleeve; 18. Electric push rod; 19. Toggle rod; 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

[0019] 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.

[0020] In this embodiment, refer to Figure 1-Figure 11, an electromagnetic compatibility detection device for electrical components, including 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 that can rotate horizontally is clamped in the large bearing 2, a bottom plate 3 is fixed to the upper surface of the gear tray 14, and the same vertical support shaft rod 29 is rotatably inserted between the bottom plate 3 and the gear tray 14, a C-shaped slide rail 8 is fixed to the top of the support shaft rod 29, the central 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 a load-bearing slider 24 is slidably connected in the arc-shaped slide groove of the C-shaped slide rail 8, and a radiation tester 11 is fixed to the side of the load-bearing slider 24 away from the bottom of the groove; a horizontally axially extending crossbeam frame 7 is fixed to the top of the circumferential outer wall of the C-shaped slide rail 8, and the end of the crossbeam frame 7 away from the C-shaped slide rail 8 A suspension rod 701 extending vertically downward is reserved, 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 to the C-shaped slide rail 8 is rotatably connected in the anti-slip bearing; and the end of the folding transfer rod 10 close to the C-shaped slide rail 8 is fixed to the side of the bearing slider 24; a lifting mechanism 4 for placing the device to be tested is fixed near the rear edge on the upper surface of the base plate 3; by providing a C-shaped slide rail 8 that can rotate 180 degrees around the lifting mechanism 4 as a whole and a radiation tester 11 fixed on the bearing slider 24, during monitoring, the relative position of the radiation tester 11 and the device to be tested can be adjusted by remotely controlling the support shaft rod 29 to rotate together with the folding transfer rod 10, and then remote radiation testing can be performed on various directions of the device to be tested.

[0021] In the present invention, the radiation tester 11 also includes a shaping spring fixed on the side of the supporting slider 24 away from the bottom of the groove, and a detection head 1101 electrically connected to the radiation tester 11 is fixed on the end of the shaping spring away from the supporting slider 24; by setting the detection head 1101 fixed to the end of the shaping spring, the shaping spring can be appropriately pulled according to the size of the device to be tested during the detection, so as to bring the detection head 1101 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] Reference Fig.11 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 displacement rotating rod 10 is opened on the side of the protruding plate rib, and a plurality of ball bearings 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 the end of the crossbeam frame 7 away from the suspension rod 701, and the through hole is consistent with the extension direction of the crossbeam frame 7, and a guide plug rod 6 is inserted in the through hole, and a counterweight block 5 is fixed on the end of the guide plug rod 6 away from the suspension rod 701; the overall stability of the C-shaped slide rail 8 during rotation can be increased.

[0023] Reference Figure 1 , Figure 2 , Figure 7 , Fig.11 Four positioning detection mechanisms 13 are fixed on the side of the C-shaped slide rail 8 away from the suspension rod 701 and are symmetrically distributed, and two of the positioning detection mechanisms 13 are respectively located directly above and directly below the C-shaped slide rail 8; the positioning detection mechanism 13 includes an F-shaped fixing frame 133 fixed on the side of the C-shaped slide rail 8, and the F-shaped fixing frame 133 includes a main rib plate and two mutually parallel support plates, and a sliding push rod 132 extending vertically to the protruding rib plate is slidably connected to the support plate in the middle, and an arc-shaped bottom plate 131 is fixed to the end of the sliding push rod 132 close to the bearing slider 24; a tightening spring is arranged between the arc-shaped bottom plate 131 and the surface of the middle support plate Spring 134, and a pressure sensor 135 is fixed on the surface of the other support plate near the end of the sliding push rod 132; a motor frame is fixed on the side of the suspension rod 701 away from the supporting slider 24, 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 the folding and shifting rotating rod 10 through a coupling; so that when in use, when the folding and shifting rotating rod 10 carries the supporting slider 24 to move to one of the positioning detection mechanisms 13, it will push the arc bottom plate 131 and the sliding push rod 132, and then touch the pressure sensor 135 at the other end, and then send out a signal that the position has been accurately reached.

[0024] Reference Figure 1 and Figure 5 An arc-shaped card slot 16 is formed on the upper surface of the bottom plate 3 at a side away from the lifting mechanism 4, and the center of the arc-shaped card slot 16 falls on the supporting shaft rod 29, the center angle of the arc-shaped card slot 16 is equal to 180 degrees, and three equally spaced pressure sensors 31 are fixed to the bottom of the arc-shaped card slot 16, one of which is aligned with the front of the device; a fixed card block 15 is fixed to the top of the supporting shaft rod 29, and a card slot for clamping the C-shaped slide rail 8 is formed on the upper surface of the fixed card block 15, and a downward-extending downward-obliquely pressing spring sheet 30 is fixed on the side of the fixed card block 15 away from the notch of the C-shaped slide rail 8, and a pressure wheel is fixed to the bottom end of the pressure spring sheet 30; when the pressure wheel presses on the pressure sensors 31 on both sides, the radiation test can be performed on the left and right sides of the device to be tested in conjunction with the position change of the bearing slider 24.

[0025] Reference Figure 5 , Figure 9-10The 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 same U-shaped bracket 404 is slidably connected in the two strip sliding holes 402, and 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 support plate 12; a sliding plug hole 408 perpendicular to the vertical plate is opened in the middle of the U-shaped bracket 404, and an anti-twist rod 407 is slidably inserted in the sliding plug hole 408; a vertical rack 401 is embedded on one side of the vertical plate close to the anti-twist rod 407, and a spring baffle is fixed on the 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 two U The same locking rod 403 is inserted into the sides of the two pins of the U-shaped bracket 404 near the bottom of the support plate 12, and the locking rod 403 is tightly attached to the side of the vertical plate, and two roller frames are fixed to 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 wheel 405 with the axis line horizontal; through the set lifting mechanism 4, when it is necessary to control the lifting of the support plate 12, the anti-twist rod 407 is axially pulled to disengage it from the lock with the rack 401, and then the U-shaped bracket 404 is manually lifted to lift the support plate 12 as a whole; 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 falls exactly at the detection center position, but also the space under the device to be tested can be reserved to perform radiation testing on the space below it.

[0026] In the present invention, 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 to reduce the blocking and attenuation of radiation during detection, so as to better detect the actual value.

[0027] Reference Figure 3 , Figure 6 , Figure 8-Figure 9, a driven gear 28 is fixed to the bottom end of the supporting shaft rod 29; a bottom crossbeam 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 crossbeams 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 rack top rods 21 with symmetrical tooth surfaces are 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 tension spring is arranged between the stopper and the end of the double-station shaft rod clamp 26; an anti-lock 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 with an electric push rod 18, a displacement 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 displacement block 20, and two rack top rods 21 are fixed with convex shafts matched with the arc-shaped grooves at one end close to the displacement block 20; a toggle rod 19 is fixed to the tail end of the electric push rod 18; 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 displacement block 20 on the convex shaft at the end of the rack top rod 21 meshing with the driven gear 28, and then control the extension rod of the electric push rod 18 to extend.

[0028] Reference Figure 8-Figure 9 An inner gear ring 141 is reserved near the bottom 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 arranged in the middle of the bearing frame 25, and a pinion 1 and a driven gear 1 22 are respectively fixed at the upper and lower ends of the transmission rod 251; 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 shifting rod 19 by 180 degrees to make the transposition 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 gear tray 14 set up, when it is used, when it is necessary to perform anti-interference detection on it, the device can be actively controlled to rotate to detect the shielding ability of each position thereof.

[0029] A method for detecting electromagnetic compatibility of electrical components comprises the following steps: Step 1: Adjust the height of the support plate 12 according to the size of the device to be tested, ensure 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, move the toggle rod 19 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 28 to rotate; at this time, remotely control the support shaft rod 29 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 perform remote radiation testing on various positions of the device to be tested; Step 2: Pull the shaping spring appropriately according to the size of the device to be tested, so as to bring the detection head 1101 as close to the device to be tested as possible, 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.

[0030] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An electromagnetic compatibility testing device for electrical components, comprising a base (1), a large bearing (2) being embedded in the middle of the upper surface of the base (1), and a gear tray (14) being clamped in the large bearing (2), characterized in that: A bottom plate (3) is fixed on the upper surface of the gear tray (14), and a vertical support shaft rod (29) is rotatably inserted between the bottom plate (3) and the gear tray (14), a C-shaped slide rail (8) is fixed on the top of the support shaft rod (29), 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 a bearing slider (24) is slidably connected in the arc-shaped slide groove of the C-shaped slide rail (8), and a radiation tester (11) is fixed on the side of the bearing slider (24) away from the bottom of the groove; 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 one end of the folding transfer rod (10) close to the C-shaped slide rail (8) is fixed to the side of the bearing slide block (24); a lifting mechanism (4) for placing the device to be tested is fixed on the upper surface of the bottom 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 slide block (24) away from the groove bottom, 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 slide block (24).

3. The electromagnetic compatibility testing device for electrical components 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 displacement rotating rod (10) is opened on the side of the protruding plate rib, and a plurality of ball bearings 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 crossbeam frame (7) away from the suspension rod (701), and the through hole is consistent with the extension direction of the crossbeam frame (7), and a guide rod (6) is inserted in the through hole, and a counterweight block (5) is fixed to one end of the guide rod (6) away from the suspension rod (701).

4. The electromagnetic compatibility testing device for electrical components according to claim 3, characterized in that: Four positioning detection mechanisms (13) are fixed on one side of the C-shaped slide rail (8) away from the suspension rod (701) and are distributed symmetrically with respect to the center, and two of the positioning detection mechanisms (13) are respectively located directly above and directly below the C-shaped slide rail (8); the positioning detection mechanism (13) comprises an F-shaped fixing frame (133) fixed on the side of the C-shaped slide rail (8), the F-shaped fixing frame (133) comprising a main rib plate and two supporting plates parallel to each other, a sliding stop rod (132) extending vertically toward the protruding rib plate is slidably connected to the middle supporting plate, and the sliding stop rod An arc-shaped bottom plate (131) is fixed to one end of the supporting slider (132) near the supporting slider (24); a clamping spring (134) is arranged between the arc-shaped bottom plate (131) and the surface of the middle supporting plate, and a second pressure sensor (135) is fixed to the surface of the other supporting plate near the end of the sliding supporting rod (132); a motor frame is fixed to the side of the suspension rod (701) away from the supporting slider (24), and a servo motor (9) is fixed to 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 the folding transposition rotating rod (10) through a coupling.

5. The electromagnetic compatibility testing device for electrical components according to claim 4, characterized in that: An arc-shaped slot (16) is formed on the upper surface of the base plate (3) at a side away from the lifting mechanism (4), and the center of the arc-shaped slot (16) falls on the supporting shaft rod (29), the center angle of the arc-shaped slot (16) is equal to 180 degrees, and three pressure sensors (31) distributed at equal distances are fixed to the bottom of the arc-shaped slot (16), one of the pressure sensors (31) is aligned with the front of the device; a fixed block (15) is fixed to the top of the supporting shaft rod (29), and a slot for clamping the C-shaped slide rail (8) is formed on the upper surface of the fixed block (15), and a downward-extending downwardly-extending downwardly-pressing spring sheet (30) is fixed to the side of the fixed block (15) away from the notch of the C-shaped slide rail (8), and a pressure wheel is fixed to the bottom end of the downward-pressing spring sheet (30).

6. The electromagnetic compatibility testing device for electrical components according to claim 1, characterized in that: The lifting mechanism (4) comprises 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), and the U-shaped bracket (404) comprises 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) has a sliding plug hole (408) perpendicular to the vertical plate, and the sliding plug hole (408) is slidably plugged with an anti-twist rod (407); the vertical plate is near 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 same tightening rod (403) is inserted through the sides of the two pins of the two U-shaped brackets (404) near the bottom of the support plate (12), and the tightening rod (403) is tightly attached to the side of the vertical plate, and two roller frames are fixed on the upper surface of the U-shaped bracket (404) near the anti-twist rod (407), and the two roller frames are respectively provided with a tightening wheel (405) with a horizontal axis.

7. The electromagnetic compatibility testing device for electrical components according to claim 1, 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 a wooden material, with a plurality of strip holes opened in the middle of the support plate (12).

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

9. The electromagnetic compatibility testing 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 arranged in the middle of the bearing frame (25), and a pinion gear 1 and a driven gear 1 (22) are respectively fixed at the upper and lower ends of the transmission rod (251); the pinion gear 1 and the inner gear ring (141) are meshed with each other, and the driven gear 1 (22) is meshed with another rack top rod (21).

10. An electromagnetic compatibility testing method for electrical components, comprising an electromagnetic compatibility testing device for electrical components as claimed 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, ensure 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 second driven gear (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 the remote radiation test is performed on each position of the device to be tested; Step 2: Pull the shaping spring appropriately according to the size of the device to be tested, so as to bring the detection head (1101) as close to the device to be tested as possible, and then detect the radiation values ​​at different distances as a comparison reference; Step 3: When performing the anti-interference test again, the toggle rod (19) is rotated 180 degrees in the opposite direction to lock the other rack top rod (21), and then the extension rod of the electric push rod (18) is controlled to extend, and the entire device is rotated horizontally to detect the shielding ability of each position.

Images