Electromagnetic compatibility testing device

Abstract

The utility model relates to the technical field of electromagnetic compatibility testing devices, and discloses an electromagnetic compatibility testing device, which comprises a base, an adjusting mechanism and two limiting mechanisms, the base comprises a bottom plate, the adjusting mechanism comprises two rotating rings, the two limiting mechanisms respectively comprise two friction shafts, and the friction shafts are arranged on the rotating rings. Rectangular holes are formed in the positions, close to the two sides, of the middles of the upper and lower ends of the bottom plate in an axial symmetry mode. According to the utility model, the vertical height and the inclination angle of the antenna are adjusted through synchronous or asynchronous telescoping of the two electric telescoping rods, so as to adapt to different test requirements and enhance the flexibility and comprehensiveness of the test; through the cooperation of the pressing plate and the spring damper, good limiting is realized, the angle adjustment of the included angle between the two electric telescopic rods and the horizontal plane is realized, the flexible change of the relative position of the antenna and the detected equipment is further realized, and the diversity and the flexibility of the electromagnetic compatibility test are fully improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to electromagnetic compatibility testing device technical field especially relates to a kind of electromagnetic compatibility testing device. BACKGROUND

[0002] Electromagnetic compatibility testing aims to ensure that equipment or systems operate normally in electromagnetic environment, while not causing unacceptable interference to its surrounding equipment. Electromagnetic compatibility design and testing are complementary processes, with testing to evaluate the pros and cons of design. In the electromagnetic compatibility design and development stage of product, prediction and evaluation can identify potential electromagnetic interference problems in advance, and take appropriate suppression and protection measures to ensure the electromagnetic compatibility of system. If incompatible problems are found after product is finalized or system is built, it will cost a lot of manpower and material resources to modify design or take remedial measures.

[0003] After searching, the inventor found that the prior art has the following problems in the process of realizing the present application: the existing electromagnetic compatibility testing device has certain limitations in actual application, especially in the adjustment of receiving antenna, it is often impossible to quickly adjust the height and tilt angle of the antenna to adapt to the needs of different equipment and test environment, which may lead to inaccurate test results, because the position and angle of the antenna have a direct impact on the strength and characteristics of the captured electromagnetic interference signal. Therefore, the skilled person provides an electromagnetic compatibility testing device to solve the problems raised in the background art. UTILITY MODEL CONTENT

[0004] The utility model aims at solving the shortcomings in the prior art, and provides an electromagnetic compatibility testing device, which adjusts the vertical height and tilt angle of the antenna through synchronous or asynchronous telescopic adjustment of the two electric telescopic rods to adapt to different test requirements and enhance the flexibility and comprehensiveness of the test. At the same time, the two friction shafts and the damping rotary connection at the connection of the bottom plate are used to limit the angle adjustment of the two electric telescopic rods with the horizontal plane through the cooperation of the pressing plate and the spring damper, so as to realize the flexible change of the relative position of the antenna and the detected equipment, thereby fully improving the diversity and flexibility of electromagnetic compatibility testing.

[0005] To achieve the above object, the utility model provides the following technical scheme: an electromagnetic compatibility testing device, comprising a base, an adjusting mechanism and two limiting mechanisms, the base comprises a bottom plate, the adjusting mechanism comprises two rotating rings, the two limiting mechanisms each comprise two friction shafts, the bottom plate is axially symmetrical and penetrates the middle of upper and lower ends and is provided with a rectangular hole near the position of both sides, the two friction shafts are respectively penetrated and rotatably arranged to the middle position between both sides of the rectangular hole, and the two rotating rings are respectively penetrated and fixedly arranged to the middle position of the shaft body of the two friction shafts.

[0006] Further, the bottom plate lower end is close to the four corners and is uniformly fixed with universal wheels in axial symmetry, and a turntable is rotationally arranged in the center of the bottom plate.

[0007] Further, a slot is arranged in the center of the upper end of the bottom plate below the upper end of the turntable, and a detector is connected in the slot.

[0008] Further, an electric telescopic rod is fixedly arranged in the center of the upper end of each of the two rotating rings, a connecting block is fixedly arranged at the upper end of each of the two electric telescopic rods, a follow-up telescopic rod is inwardly ball-hinged to each of the opposite sides of the two connecting blocks, and the opposite ends of the two follow-up telescopic rods are fixedly connected.

[0009] Further, an antenna is fixedly arranged through the two opposite sides of the connecting position of each of the two follow-up telescopic rods and the body of the follow-up telescopic rod.

[0010] Further, a limit wheel is fixedly arranged through the center of each of the opposite sides of the bottom plate.

[0011] Further, a spring damper is fixedly arranged at the position close to each of the two limit wheels on the two opposite sides of the bottom plate, and a pressing plate is fixedly arranged at the center of the outer side of each of the two spring dampers.

[0012] Further, a blocking rod is fixedly arranged at the center of the outer side of each of the two pressing plates, and the blocking rod is clamped to the edge of each of the two limit wheels.

[0013] The utility model has the advantages of the following:

[0014] 1. The electromagnetic compatibility testing device can adjust the vertical height of the three antennas by simultaneously telescoping the two electric telescopic rods in the vertical direction by the same length, so as to adapt to different requirements of equipment testing.

[0015] 2, the utility model discloses a kind of electromagnetic compatibility testing device, the contact surface of the two friction shafts of the device and bottom plate rotation connection has certain damping, by pressing the spring damper of corresponding side pressing plate compression, to drive baffle pole to the bottom plate movement, further release the limiting of baffle pole to limit wheel, then dial the electric telescopic rod of same side, realize the angle adjustment of electric telescopic rod, after loosening pressing plate, spring damper restores deformation, make baffle pole restore original position and be well connected and set to the edge position of limit wheel, re-limit wheel is well limited, to well fix the electric telescopic rod of same side, at this time, two electric telescopic rods between two follow-up telescopic rods drive three antennas to change relative position with the equipment to be detected, fully comprehensive flexible electromagnetic compatibility test is carried out. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is the axonometric view of the utility model;

[0017] Figure 2 It is the axonometric view of the utility model when observing from lower end;

[0018] Figure 3 It is the axonometric view of the utility model when observing from rear end;

[0019] Figure 4 It is the axonometric view of the utility model when two electric telescopic rods are different in length;

[0020] Figure 5 It is the axonometric view of the rotary table of the utility model;

[0021] Figure 6 It is the axonometric view of the utility model; Figure 3 It is the enlarged schematic view of structure of A of the utility model.

[0022] LEGEND:

[0023] 1, base; 2, adjusting mechanism; 3, limiting mechanism; 101, universal wheel; 102, bottom plate; 103, rectangular hole; 104, rotary table; 105, detector; 201, swivel ring; 202, electric telescopic rod; 203, connecting block; 204, follow-up telescopic rod; 205, antenna; 301, friction shaft; 302, limit wheel; 303, spring damper; 304, pressing plate; 305, baffle pole. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the utility model will be clearly and completely described below with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0025] With reference to Figure 1 and Figure 2 , the utility model provides an embodiment: a kind of electromagnetic compatibility test device, including base 1, adjusting mechanism 2 and two limiting mechanisms 3, the base 1 includes bottom plate 102, the adjusting mechanism 2 includes two rotating rings 201, two limiting mechanisms 3 all include two friction shafts 301, the bottom plate 102 is symmetrically penetrated through upper and lower ends middle near both sides position is equipped with rectangular hole 103, two described friction shafts 301 are respectively penetrated and rotatably arranged between the middle position of two described rectangular holes 103 sides, two described rotating rings 201 are respectively penetrated and fixedly arranged to the middle position of two described friction shafts 301 shaft body;

[0026] Specifically, bottom plate 102 in base 1 provides good installation position for two friction shafts 301 in two limiting mechanisms 3 by two rectangular holes 103, two friction shafts 301 in two limiting mechanisms 3 provide good installation position for two rotating rings 201 in adjusting mechanism 2.

[0027] With reference to Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 and Figure 6 : the bottom plate 102 lower end near the four corners position is symmetrically fixedly provided with universal wheel 101, the bottom plate 102 center is rotatably provided with turntable 104, the bottom plate 102 upper end center is equipped with slot in the position below the upper end of the turntable 104, the slot is rotatably provided with detection instrument 105 in the inside clamping setting;

[0028] Specifically, four universal wheels 101 that are symmetrically fixedly arranged at the lower end of the bottom plate 102 near the four corners make the whole test device have good mobility, can be quickly deployed and adjusted in different test environments, while ensuring the stability and flexibility of the device during movement, the turntable 104 rotatably arranged at the center of the bottom plate 102 facilitates the placement of the equipment to be detected, and supports the rotation test, which is conducive to the all-round electromagnetic compatibility performance of the test equipment, ensures the comprehensiveness and accuracy of the test results.

[0029] The slot equipped at the upper end center of the bottom plate 102 below the upper end of the turntable 104 facilitates the clamping setting of the detection instrument 105, so that it is well placed below the turntable 104, without affecting the rotation of the turntable 104, and facilitates electromagnetic compatibility testing of various equipment at any time, so that the operator can more easily operate the detection instrument 105, effectively improving the convenience and efficiency of the test process.

[0030] With reference to Figure 2 、 Figure 3 、 Figure 4 and Figure 6The upper end of each of the two rotating rings 201 is fixedly provided with an electric telescopic rod 202, the upper end of each of the two electric telescopic rods 202 is fixedly provided with a connecting block 203, the opposite side of each of the two connecting blocks 203 is inwardly connected with a follow-up telescopic rod 204 through a spherical hinge, and the opposite ends of the two follow-up telescopic rods 204 are fixedly connected.

[0031] Specifically, the vertical height of the antenna 205 can be adjusted by simultaneously telescoping the two electric telescopic rods 202 in the vertical direction by the same length, so as to adapt to different requirements of equipment testing. If the lengths of the two electric telescopic rods 202 are different, the two connecting blocks 203 fixedly arranged at the upper ends of the two electric telescopic rods 202 will tilt and form a certain angle with the horizontal plane, and simultaneously drive the antenna 205 fixedly arranged on the rod body to change the tilt angle, thereby improving the flexibility and comprehensiveness of electromagnetic compatibility testing. The connecting position of the two follow-up telescopic rods 204 and the positions near the connecting position of the rod body are both fixedly provided with the antenna 205, so that one or more antennas 205 can be used for testing simultaneously according to actual needs during testing.

[0032] Referring to Figure 2 , Figure 3 , Figure 4 and Figure 6 : The outer side of each of the two friction shafts 301 is fixedly connected with a limiting wheel 302 penetrating through the center of the bottom plate 102, the bottom plate 102 is fixedly provided with a spring damper 303 near the positions of the two limiting wheels 302, the outer side of each of the two spring dampers 303 is fixedly provided with a pressing plate 304, the outer center of each of the two pressing plates 304 is fixedly provided with a blocking rod 305, and the two blocking rods 305 are respectively clamped to the edge positions of the two limiting wheels 302.

[0033] Specifically, the contact surface of the rotating connection between the two friction shafts 301 and the bottom plate 102 has a certain damping. If one of the two electric telescopic rods 202 is required to be rotated by a certain angle, the pressing plate 304 on the corresponding side is only needed to be pressed to compress the spring damper 303 and drive the blocking rod 305 to move towards the bottom plate 102, thereby releasing the limiting of the limiting wheel 302. Then, the electric telescopic rod 202 is pushed at the desired angle in sequence, and then the pressing plate 304 is released. The spring damper 303 restores the deformation, the blocking rod 305 returns to the original position and is well clamped to the edge position of the limiting wheel 302, thereby well limiting the limiting wheel 302 and well fixing the electric telescopic rod 202 on the same side. At this time, the two follow-up telescopic rods 204 between the two electric telescopic rods 202 drive the three antennas 205 to change the relative position with the detected equipment, so as to fully and flexibly perform electromagnetic compatibility testing.

[0034] Working principle: the vertical height of the antenna 205 can be adjusted by the same length of the two motorized telescopic rods 202 in the vertical direction at the same time, to adapt to different requirements of equipment testing, if the two motorized telescopic rods 202 are different in length, the two connecting blocks 203 fixedly arranged at the upper end of the two motorized telescopic rods 202 are connected to the two follow-up telescopic rods 204 by spherical hinge connection, which will tilt and form a certain angle with the horizontal plane, and at the same time, the antenna 205 fixedly arranged on the rod body changes the inclination angle, improves the flexibility and comprehensiveness of electromagnetic compatibility test, the connecting position of the two follow-up telescopic rods 204 and the rod body near the connecting position are both fixedly provided with the antenna 205, so that one or more antennas 205 can be used for testing at the same time according to actual needs during testing;

[0035] Secondly, the contact surface of the two friction shafts 301 and the bottom plate 102 is rotationally connected with a certain damping, if you want to rotate one of the two motorized telescopic rods 202 by a certain angle, you only need to press the pressing plate 304 on the corresponding side to compress the spring damper 303, and drive the stop rod 305 to move towards the bottom plate 102, release the limiting of the limiting wheel 302, then move the motorized telescopic rod 202 by a desired angle forward or in sequence, then release the pressing plate 304, the spring damper 303 restores the deformation, the stop rod 305 restores to the original position and is well clamped to the edge position of the limiting wheel 302, and the limiting wheel 302 is well limited, and the motorized telescopic rod 202 on the same side is well fixed, at this time, the two follow-up telescopic rods 204 between the two motorized telescopic rods 202 drive the three antennas 205 to change the relative position with the detected equipment, and fully and flexibly carry out electromagnetic compatibility test.

[0036] Finally, it should be pointed out that: the above only for the preferred embodiments of the present application, and is not intended to limit the present application, although the present application has been described in detail with reference to the foregoing embodiments, for those skilled in the art, it still can modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part of the technical features, any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application, shall be included in the protection scope of the present application.

Claims

1. An electromagnetic compatibility testing device comprising a base (1), an adjustment mechanism (2) and two limiting mechanisms (3), characterized in that: The base (1) comprises a bottom plate (102), the adjusting mechanism (2) comprises two rotating rings (201), two limiting mechanisms (3) each comprise two friction shafts (301), the bottom plate (102) is axially symmetrical and is provided with a rectangular hole (103) near the middle of the upper and lower ends and the two sides, two friction shafts (301) are respectively arranged in the middle of the two sides of the rectangular hole (103), and two rotating rings (201) are respectively arranged in the middle of the shaft body of the two friction shafts (301).

2. The electromagnetic compatibility test apparatus of claim 1, wherein: The bottom plate (102) is axially symmetrical and is provided with a universal wheel (101) near the four corners of the lower end, and a rotating table (104) is arranged in the center of the bottom plate (102).

3. The electromagnetic compatibility test apparatus of claim 2, wherein: The upper end of the bottom plate (102) is provided with a slot below the upper end of the rotating table (104), and a detector (105) is arranged in the slot.

4. The electromagnetic compatibility test apparatus of claim 1, wherein: Two rotating rings (201) are arranged on the upper end of the rotating ring (201), and two electric telescopic rods (202) are arranged on the upper end of the rotating ring (201), two connecting blocks (203) are arranged on the upper end of the electric telescopic rod (202), two follow-up telescopic rods (204) are arranged on the opposite side of the connecting block (203), and the opposite end of the follow-up telescopic rod (204) is fixedly connected.

5. The electromagnetic compatibility test apparatus of claim 4, wherein: Two follow-up telescopic rods (204) are arranged on the connecting portion of the follow-up telescopic rod (204) and the rod body of the follow-up telescopic rod (204), and an antenna (205) is arranged on the opposite side of the connecting portion of the follow-up telescopic rod (204) and the rod body of the follow-up telescopic rod (204).

6. The electromagnetic compatibility test apparatus of claim 1, wherein: One end of the outer side of the two friction shafts (301) penetrates the center of the two sides of the bottom plate (102) and is fixedly connected with a limiting wheel (302).

7. The electromagnetic compatibility test apparatus of claim 6, wherein: The two sides of the bottom plate (102) are provided with a spring damper (303) near the two limiting wheels (302), and the center of the outer side of the two spring dampers (303) is fixedly provided with a pressing plate (304).

8. The electromagnetic compatibility test apparatus of claim 7, wherein: The outer side of the two pressing plates (304) is fixedly provided with a stop rod (305), and the two stop rods (305) are respectively arranged on the edge of the two limiting wheels (302).

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