A sample grounding device for electromagnetic compatibility testing

Abstract

The application provides a sample grounding device for electromagnetic compatibility test, which comprises an insulating support, a through groove is formed in the upper inner side of the insulating support, a hollow base is fixed to the lower part of the insulating support by means of bolts, a rubber suction disc is glued to the lower part of the hollow base, and a fixed connecting plate is integrally arranged on the inner side of the insulating support, characterized in that a spiral lifting frame assembly is installed on the inner side of the insulating support, an insulating turner assembly is connected to the upper left part of the insulating support, a ground wire connector assembly is installed on the lower left part of the insulating turner assembly, and a tension spring is arranged on the left side of the insulating support. The application has the beneficial effect that the insulating support can be fixed on the test table top through the setting of the capped inner thread pipe, the fixed limiting protrusion, the hollow limiting base, the outer thread pull rod and the plastic sealing seat, and the position of the insulating support can be adjusted at any time to make it close to the sample.

Description

Technical Field

[0001] This invention belongs to the field of sample grounding technology, and particularly relates to a sample grounding device for electromagnetic compatibility testing. Background Technology

[0002] As a fundamental feature of intelligent primary equipment, online monitoring requires performance testing and acceptance before being put into operation to ensure the functionality and operational reliability of the online monitoring device. One of the most important tests is the electromagnetic compatibility (EMC) test, which is mainly divided into electromagnetic emission (EMI) test and electromagnetic immunity (EMS) test. During the test, the sample needs to be grounded, and the grounding wire needs to be fixed with bolts, which is quite laborious. The spring clips need to have thin edges to be used, which places high demands on the box-type sample. Summary of the Invention

[0003] To address the aforementioned technical problems, this invention provides a sample grounding device for electromagnetic compatibility testing. A spring allows the grounding wire contacts to make contact with the sample, and the device can be adjusted according to the sample thickness, thus expanding its applicability.

[0004] The technical solution is as follows: A sample grounding device for electromagnetic compatibility testing includes an insulating bracket. A through groove is provided on the upper inner side of the insulating bracket. A hollow base is bolted to the lower part of the insulating bracket. A rubber suction cup is glued to the lower part of the hollow base. A fixing plate is integrally provided on the inner side of the insulating bracket. The feature is that a spiral lifting frame assembly is installed on the inner side of the insulating bracket. An insulating flipper assembly is connected to the upper left part of the insulating bracket. A grounding connector assembly is installed on the lower left part of the insulating flipper assembly. Tension springs are respectively provided at the front and rear ends of the left side of the insulating bracket.

[0005] Preferably, the spiral lifting frame assembly includes a capped internal threaded tube, the upper outer side of which is provided with a fixing limiting protrusion, the lower outer side of which is sleeved with a hollow limiting base, and the lower inner side of which is threadedly connected with an external threaded pull rod, and the lower part of the external threaded pull rod is screwed with a plastic sealing seat.

[0006] Preferably, the insulating flipper assembly includes a limiting top plate, a connecting ear plate integrally provided on the upper part of the limiting top plate, an inclined flipping frame provided on the left side of the limiting top plate, a flipping handle screwed on the upper part of the inclined flipping frame, and an arc-shaped reinforcing rib integrally provided on the lower left part of the inclined flipping frame.

[0007] Preferably, the grounding connector assembly includes a conductive copper plate, and a cylindrical conductive cylinder is integrally provided on the lower right part of the conductive copper plate. A connecting bolt is threaded to the front end of the cylindrical conductive cylinder. A threaded conductive post is threaded to the left side inside the conductive copper plate, and a ceramic insulating wheel is inlaid on the upper outer side of the threaded conductive post.

[0008] Preferably, the lower part of the capped internal threaded tube penetrates the inner side of the fixed connecting plate, and the lower part of the external threaded tie rod penetrates the lower inner side of the insulating bracket.

[0009] Preferably, the plastic sealing seat is glued to the upper center of the rubber suction cup, and the fixing limiting protrusion and the hollow limiting base are located at the upper and lower parts of the fixing connecting plate, respectively.

[0010] Preferably, the limiting top plate bolt is installed on the upper left side of the insulating bracket, and the upper right part of the tilting and flipping frame is axially connected to the inner side of the connecting ear plate.

[0011] Preferably, hollow hanging rings are integrally provided at both ends of the tilting and flipping frame and at both ends of the left side of the insulating support.

[0012] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0013] 1. In this invention, the capped internal threaded tube, the fixed limiting protrusion, the hollow limiting base, the external threaded tie rod, and the plastic sealing seat are designed to help fix the insulating bracket on the test table and allow for easy adjustment of its position to bring it closer to the sample.

[0014] 2. In this invention, the setting of the limiting top plate, connecting ear plate, tilting and flipping frame, flipping handle and arc-shaped reinforcing rib plate is beneficial to driving the ground wire connector assembly to rotate, and can be carried out under energized conditions.

[0015] 3. In this invention, the arrangement of the conductive copper plate, cylindrical conductive cylinder, connecting bolt, threaded conductive post, and ceramic insulating wheel facilitates fixing the end of the grounding wire to the inner side of the threaded conductive post, and connecting the grounding wire to the sample through the insulating flipper assembly and tension spring. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of the present invention.

[0017] Figure 2 This is a structural schematic diagram of the spiral lifting frame assembly of the present invention.

[0018] Figure 3 This is a schematic diagram of the structure of the insulation flipper assembly of the present invention.

[0019] Figure 4 This is a schematic diagram of the ground connector assembly of the present invention.

[0020] Figure 5 This is a diagram showing the working posture of the present invention.

[0021] In the picture:

[0022] 1. Insulating bracket; 2. Through groove; 3. Hollow base; 4. Rubber suction cup; 5. Fixing connecting plate; 6. Spiral lifting frame assembly; 61. Capped internal threaded tube; 62. Fixing limit protrusion; 63. Hollow limit base; 64. External threaded tie rod; 65. Plastic sealing seat; 7. Insulating flipper assembly; 71. Limiting top plate; 72. Connecting ear plate; 73. Inclined flipping frame; 74. Flipping handle; 75. Arc-shaped reinforcing rib; 8. Grounding connector assembly; 81. Conductive copper plate; 82. Cylindrical conductive cylinder; 83. Connecting bolt; 84. Threaded conductive post; 85. Ceramic insulating wheel; 9. Tension spring; 10. Test table; 11. Sample to be tested; 12. Grounding wire. Detailed Implementation

[0023] The present invention will be further described below with reference to the accompanying drawings:

[0024] Example:

[0025] As attached Figure 1 As shown, an electromagnetic compatibility testing sample grounding device includes an insulating bracket 1. A through groove 2 is provided on the upper inner side of the insulating bracket 1. A hollow base 3 is bolted to the lower part of the insulating bracket 1. A rubber suction cup 4 is glued to the lower part of the hollow base 3. A fixing plate 5 is integrally provided on the inner side of the insulating bracket 1. The device is characterized in that a spiral lifting frame assembly 6 is installed on the inner side of the insulating bracket 1, an insulating flipper assembly 7 is connected to the upper left part of the insulating bracket 1, a ground wire connector assembly 8 is installed on the lower left part of the insulating flipper assembly 7, and tension springs 9 are respectively provided at the front and rear ends of the left side of the insulating bracket 1.

[0026] In the above embodiment, specifically, one end of the tension spring 9 is connected to the front and rear ends of the tilting and flipping frame 73, and the other end is connected to the front and rear ends of the insulating bracket 1.

[0027] In the above embodiments, specifically, the conductive copper plate 81 is bolted to the lower left part of the tilting and flipping frame 73, and the upper part of the conductive copper plate 81 is bolted to the arc-shaped reinforcing rib plate 75.

[0028] In the above embodiments, specifically, the threaded conductive post 84 is located on the left side of the arc-shaped reinforcing rib 75, and the connection between the capped internal threaded tube 61 and the hollow limiting base 63 is threaded with a fixing screw.

[0029] In the above embodiments, specifically, the lower part of the insulating bracket 1 is provided with a test table 10, on which the sample to be tested 11 is placed, and the inner side of the cylindrical conductive tube 82 is fixed with a grounding wire 12.

[0030] Working principle

[0031] The working principle of this invention is as follows: The sample 11 to be tested is placed on the test table 10, and then the device is placed on the test table 10, positioned to the side of the grounding end of the sample 11. Then, the capped internal threaded tube 61 is rotated. The capped internal threaded tube 61, through its threaded connection with the external threaded pull rod 64, causes the plastic sealing seat 65 to move the upper part of the rubber suction cup 4 upwards, creating a negative pressure on the inner side of the rubber suction cup 4. This causes the device to adhere to the test table 10. Depending on the height of the grounding position of the sample 11, the ceramic insulating wheel 85 is held in place. The threaded conductive post 84 is rotated to adjust its position on the conductive copper plate 81. Then, the flip handle 74 is held and rotated to tilt the flip frame 73. The tilt flip frame 73 drives the conductive copper plate 81 to flip upward. Then, the grounding end of the sample is moved to the lower part of the conductive copper plate 81. Then, under the tension of the tension spring 9, the lower part of the threaded conductive post 84 contacts the grounding end of the sample 11 to be tested. At this time, the grounding end of the sample 11 to be tested is connected to the grounding wire 12. Excess charge can be discharged to the ground through the grounding wire 12.

[0032] Any technical solution that achieves the above-mentioned technical effects by utilizing the technical solutions described in this invention, or by designing similar technical solutions by those skilled in the art under the inspiration of the technical solutions described in this invention, falls within the protection scope of this invention.

Claims

1. A sample grounding device for electromagnetic compatibility testing, characterized in that, The device includes an insulating bracket (1), with a through groove (2) on the upper inner side of the insulating bracket (1), a hollow base (3) bolted to the lower part of the insulating bracket (1), a rubber suction cup (4) glued to the lower part of the hollow base (3), a fixing connecting plate (5) integrally provided on the inner side of the insulating bracket (1), a spiral lifting frame assembly (6) installed on the inner side of the insulating bracket (1), an insulating flipper assembly (7) connected to the upper left part of the insulating bracket (1), a ground wire connector assembly (8) installed on the lower left part of the insulating flipper assembly (7), and tension springs (9) respectively provided at the front and rear ends of the left side of the insulating bracket (1); the spiral lifting frame assembly (6) includes a capped internal threaded tube (61), and a fixing limiting protrusion (62) is provided on the upper outer side of the capped internal threaded tube (61). A hollow limiting base (63) is sleeved on the lower outer side of the capped internal threaded tube (61), and an external threaded pull rod (64) is threaded on the lower inner side of the capped internal threaded tube (61). A plastic sealing seat (65) is screwed on the lower part of the external threaded pull rod (64). The lower part of the capped internal threaded tube (61) passes through the inner side of the fixed connecting plate (5), and the lower part of the external threaded pull rod (64) passes through the lower inner side of the insulating bracket (1). The plastic sealing seat (65) is glued to the upper center of the rubber suction cup (4). The fixed limiting protrusion (62) and the hollow limiting base (63) are located on the upper and lower parts of the fixed connecting plate (5), respectively. One end of the tension spring (9) is hooked to the front and rear ends of the tilting flipping frame (73), and the other end is hooked to the front and rear ends of the insulating bracket (1).

2. The sample grounding device for electromagnetic compatibility testing as described in claim 1, characterized in that, The insulation flipper assembly (7) includes a limiting top plate (71), a connecting ear plate (72) is integrally provided on the upper part of the limiting top plate (71), an inclined flipping frame (73) is provided on the left side of the limiting top plate (71), a flipping handle (74) is screwed on the upper part of the inclined flipping frame (73), and an arc-shaped reinforcing rib plate (75) is integrally provided on the lower left part of the inclined flipping frame (73).

3. The sample grounding device for electromagnetic compatibility testing as described in claim 1, characterized in that, The grounding connector assembly (8) includes a conductive copper plate (81), a cylindrical conductive cylinder (82) is integrally provided on the lower right part of the conductive copper plate (81), a connecting bolt (83) is threaded to the front end of the cylindrical conductive cylinder (82), a threaded conductive post (84) is threaded to the left side inside the conductive copper plate (81), and a ceramic insulating wheel (85) is inlaid on the upper outer side of the threaded conductive post (84).

4. The sample grounding device for electromagnetic compatibility testing as described in claim 2, characterized in that, The limiting top plate (71) is bolted to the upper left side of the insulating bracket (1), and the upper right part of the tilting and flipping frame (73) is axially connected to the inner side of the connecting ear plate (72).

5. The sample grounding device for electromagnetic compatibility testing as described in claim 2, characterized in that, Hollow hanging rings are integrally provided at both ends of the tilting and flipping frame (73) and at both ends of the left side of the insulating support (1).

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