Multifunctional EMC electromagnetic compatibility test device

Abstract

The invention provides a multifunctional EMC electromagnetic compatibility test device which comprises a test bed, supporting legs, a wire holder, test equipment, an observable shielding box structure, a slidable shielding interference frame structure, a rotatable clamping fixing plate structure and a pushable storage box structure, and the supporting legs are fixed to the four corners of the bottom end of the test bed through bolts respectively. According to the invention, the sleeving box, the shielding plate, the sliding hole, the T-shaped moving seat and the first fixing plate are arranged in a matched manner, so that the T-shaped moving seat is pushed to move in the electromagnetic compatibility test process, an arranged EMI filter or an electromagnetic interference device is driven, and the electromagnetic interference test can be conveniently carried out in the test process; and the test bench, the box seat, the shielding box and the observation sheet are arranged in a mutually matched manner, so that observation work can be performed through the observation sheet in the compatible test process, and equipment observation can be conveniently performed in the compatible test process.

Description

Technical Field

[0001] The present invention belongs to the technical field of electromagnetic compatibility test equipment, and particularly relates to a multifunctional EMC electromagnetic compatibility test device. Background Art

[0002] Electromagnetic compatibility (EMC) refers to the ability of a device or system to operate in its electromagnetic environment in compliance with requirements and not generate intolerable electromagnetic interference to any device in its environment. Therefore, EMC includes two aspects of requirements: on the one hand, it means that the electromagnetic interference generated by a device during normal operation in its environment cannot exceed a certain limit; on the other hand, it means that the appliance has a certain degree of immunity to electromagnetic interference existing in its environment, that is, electromagnetic sensitivity. In order to understand the electromagnetic compatibility of a device, people have invented an EMC electromagnetic compatibility test device. Existing electromagnetic compatibility test devices have problems such as being unable to adjust the distance for experimental work during the experiment, being unable to observe during the experiment while interfering with the test process, and being prone to damaging the wire body during the experiment. Summary of the Invention

[0003] In order to solve the above technical problems, the present invention provides a multifunctional EMC electromagnetic compatibility test device. By setting an adjustment mechanism during use, it is convenient for compatibility test work at different distances, improving the device placement mechanism during the test to facilitate observation during the experiment, and improving the wire body fixing mechanism during the test to prevent damage to the wire body during the experiment.

[0004] A multifunctional EMC electromagnetic compatibility test device includes a test bench. Support legs are respectively bolt-fixed at the four corners of the bottom end of the test bench; a wiring seat is bolt-fixed at the rear of the upper end of the test bench; a test device is fixed on the left side of the upper end of the test bench. It is characterized in that a visible shielding box structure is connected at the middle position of the upper end of the test bench; a slidable shielding interference frame structure is also arranged on the left side of the upper end of the test bench; a rotatable clamping fixing plate structure is connected at the middle position on the left side of the upper end of the test bench; a pushable storage box structure is arranged at the bottom between the support legs. The visible shielding box structure includes a box seat, and a shielding box is inserted into the inner part of the upper end of the box seat; an observation piece is inlaid at the middle position of the top end of the shielding box.

[0005] Preferably, the slidable shielding interference frame structure includes a socket box, and the upper ends of the socket box are respectively bolt-fixed on the left and right sides of the bottom end of a shielding plate; a sliding hole is horizontally opened at the middle position inside the shielding plate; a T-shaped moving seat slidably penetrates through the inside of the sliding hole; first fixing plates are respectively inserted into the inner part of the bottom end of the socket box.

[0006] Preferably, the rotatable clamping and fixing plate structure includes a second fixing plate, and a T-shaped fixing rod is bolted to the rear end of the second fixing plate; rotating rings are respectively sleeved on the left and right sides of the outer wall of the upper end of the T-shaped fixing rod; the rotating rings are respectively bolted to the left and right sides of the middle position at the rear end of the pressing plate; a sponge strip is adhesively bonded to the bottom end of the pressing plate.

[0007] Preferably, the pushable storage box structure includes a bottom plate, and a storage box is bolted to the middle position at the upper end of the bottom plate; a storage cavity is arranged inside the upper end of the storage box; a separation plate is arranged at the middle position of the inner wall of the storage cavity.

[0008] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0009] 1. In the present invention, the socket box, the shielding plate, the sliding hole, the T-shaped moving seat and the first fixing plate are arranged in cooperation, which is beneficial to move the T-shaped moving seat during the electromagnetic compatibility test, and at the same time drive the set EMI filter or electromagnetic interferer, facilitating the purpose of conducting electromagnetic interference tests during the experiment.

[0010] 2. In the present invention, the test bench, the box seat, the shielding box and the observation piece are arranged in cooperation, which is beneficial to observe through the observation piece during the compatibility test, facilitating the purpose of observing the equipment during the compatibility test.

[0011] 3. In the present invention, the test bench, the second fixing plate, the T-shaped fixing rod, the rotating ring, the pressing plate and the sponge strip are arranged in cooperation, which is beneficial to clamp and fix the wires used for connection through the cooperation of the second fixing plate and the pressing plate during the compatibility test, preventing the wire body from being damaged during the test and affecting the experimental effect and test efficiency. Description of the Drawings

[0012] Figure 1 is the structural schematic diagram of the present invention.

[0013] Figure 2 is the structural schematic diagram of the observable shielding box structure of the present invention.

[0014] Figure 3 is the structural schematic diagram of the slidable shielding interference rack structure of the present invention.

[0015] Figure 4 is the structural schematic diagram of the rotatable clamping and fixing plate structure of the present invention.

[0016] Figure 5 is the structural schematic diagram of the pushable storage box structure of the present invention.

[0017] In the figure:

[0018] 1. Test bench; 2. Support legs; 3. Wiring seat; 4. Testing equipment; 5. Observable shielding box structure; 51. Box base; 52. Shielding box; 53. Observation piece; 6. Slidable shielding interference frame structure; 61. Socket box; 62. Baffle; 63. Sliding hole; 64. T-shaped moving seat; 65. First fixing plate; 7. Rotatable clamping fixing plate structure; 71. Second fixing plate; 72. T-shaped fixing rod; 73. Rotating ring; 74. Pressing plate; 75. Sponge strip; 8. Pushable storage box structure; 81. Bottom plate; 82. Storage box; 83. Storage cavity; 84. Separation plate. Detailed implementation manner

[0019] The present invention will be specifically described below with reference to the drawings. As shown in the attached Figure 1 and the attached Figure 2 A multifunctional EMC electromagnetic compatibility test device includes a test bench 1, support legs 2, a wiring seat 3, testing equipment 4, an observable shielding box structure 5, a slidable shielding interference frame structure 6, a rotatable clamping fixing plate structure 7, and a pushable storage box structure 8. Support legs 2 are bolted and fixed at the four corner positions at the bottom end of the test bench 1; a wiring seat 3 is bolted and fixed at the rear of the upper end of the test bench 1; testing equipment 4 is fixed on the left side of the upper end of the test bench 1; an observable shielding box structure 5 is connected to the middle position of the upper end of the test bench 1; a slidable shielding interference frame structure 6 is further provided on the left side of the upper end of the test bench 1; a rotatable clamping fixing plate structure 7 is connected to the middle position on the left side of the upper end of the test bench 1; a pushable storage box structure 8 is arranged at the bottom between the support legs 2. The observable shielding box structure 5 includes a box base 51, a shielding box 52, and an observation piece 53. The shielding box 52 is inserted into the inner part of the upper end of the box base 51; an observation piece 53 is inlaid at the middle position of the top end of the shielding box 52. When conducting a test, the test bench 1 is fixed at a suitable position, and an external power supply is connected using an external wire. The shielding box 52 is opened, and then the equipment is placed inside the equipment placement groove opened at the middle position of the upper end of the box base 51, and wiring work is carried out through the provided wiring strips.

[0020] In this implementation scheme, in combination with the attached Figure 3As shown in the figure, the slidable shielding interference frame structure 6 includes a socket box 61, a shielding plate 62, a sliding hole 63, a T-shaped moving seat 64, and a first fixing plate 65. The upper ends of the socket box 61 are respectively bolt-fixed to the left and right sides of the bottom end of the shielding plate 62. A sliding hole 63 is horizontally opened at the middle position inside the shielding plate 62. A T-shaped moving seat 64 is slidably penetrated inside the sliding hole 63. The bottom ends of the socket box 61 are respectively inserted with the first fixing plate 65. During the experiment, according to the needs of the experimental work, the socket box 61 is sleeved on the outer wall of the upper end of the first fixing plate 65, and an EMI filter or an electromagnetic interferer is arranged at the bottom end of the T-shaped moving seat 64. By pushing the T-shaped moving seat 64 to move, the EMI filter or the electromagnetic interferer is driven to move at the same time, which is convenient to achieve the purpose of the Ganz compatibility test by adjusting the distance during the experiment.

[0021] In this implementation scheme, in combination with the attached Figure 4 As shown in the figure, the rotatable clamping fixing plate structure 7 includes a second fixing plate 71, a T-shaped fixing rod 72, a rotating ring 73, a pressing plate 74, and a sponge strip 75. The T-shaped fixing rod 72 is bolt-fixed to the rear end of the second fixing plate 71. The rotating rings 73 are respectively sleeved on the left and right sides of the outer wall of the upper end of the T-shaped fixing rod 72. The rotating rings 73 are respectively bolt-fixed to the left and right sides of the middle position of the rear end of the pressing plate 74. The sponge strip 75 is adhesively bonded to the bottom end of the pressing plate 74. During the experiment, the wires used for connection are sequentially placed in the grooves opened at the upper end of the second fixing plate 71, and then the pressing plate 74 is rotated to press and fix the wires, so as to prevent the wires from being damaged during the experiment and affecting the experimental effect and experimental efficiency.

[0022] In this implementation scheme, in combination with the attached Figure 5 As shown in the figure, the pushable storage box structure 8 includes a bottom plate 81, a storage box 82, a storage cavity 83, and a separation plate 84. The storage box 82 is bolt-fixed to the middle position of the upper end of the bottom plate 81. The storage cavity 83 is arranged inside the upper end of the storage box 82. The separation plate 84 is arranged at the middle position of the inner wall of the storage cavity 83. During the electromagnetic compatibility experiment, after the equipment is tested, the equipment that meets the standard is placed inside the left side of the storage box 82, and the equipment that does not meet the standard is placed inside the right side of the storage box 82, so as to complete the electromagnetic compatibility test work.

[0023] In this implementation scheme, specifically, a computer is arranged on the upper right side of the test bench 1, and a grounding wire mechanism is arranged on the upper left side of the test bench 1.

[0024] In this implementation, specifically, a device placement groove is provided at the middle position of the upper end of the box base 51, and a wiring terminal is provided at the rear end of the device placement groove; the observation piece 53 is made of a transparent tempered glass sheet.

[0025] In this implementation, specifically, the box base 51 is bolted to the left side of the middle position at the upper end of the test bench 1.

[0026] In this implementation, specifically, the T-shaped moving seat 64 is a T-shaped PVC seat, and an EMI filter or electromagnetic interference eliminator is bolted to the bottom end.

[0027] In this implementation, specifically, the first fixing plates 65 are respectively bolted to the left side and the right side of the middle position at the upper end of the test bench 1; the shielding plate 62 is arranged on the upper left side of the test bench 1.

[0028] In this implementation, specifically, grooves are successively provided from front to back at the upper end of the second fixing plate 71; a bearing is provided at the connection between the T-shaped fixing rod 72 and the rotating ring 73; the sponge strip 75 is arranged on the upper end of the second fixing plate 71.

[0029] In this implementation, specifically, the second fixing plate 71 is bolted to the middle position on the left side at the upper end of the test bench 1 and is arranged on the right side of the test equipment 4; the second fixing plate 71 is also arranged on the left side of the box base 51.

[0030] In this implementation, specifically, the front and rear ends of the separation plate 84 are respectively bolted to the middle positions of the front and rear inner walls of the storage box 82.

[0031] In this implementation, specifically, the bottom plate 81 is bolted to the lower part between the support legs 2; the storage box 82 is arranged at the middle position below the test bench 1.

[0032] Working principle

[0033] In the present invention, when conducting experimental work, the test bench 1 is fixed in a suitable position, and an external power supply is connected using an external wire. The shielding box 52 is opened, and then the device is placed inside the device placement groove opened in the middle position at the upper end of the box seat 51. Wiring work is carried out through the provided wiring block. During the experiment, according to the needs of the experimental work, the socket box 61 is sleeved on the outer wall of the upper end of the first fixing plate 65, and an EMI filter or an electromagnetic interference eliminator is provided at the bottom end of the T-shaped moving seat 64. By pushing the T-shaped moving seat 64 to move, the EMI filter or the electromagnetic interference eliminator is driven to move at the same time, facilitating the achievement of the Ganz compatibility test purpose by adjusting the distance during the experiment. During the experiment, the wires used for connection are sequentially placed inside the grooves opened at the upper end of the second fixing plate 71, and then the pressing plate 74 is rotated to carry out the pressing and fixing work on the wires, preventing the wires from being damaged during the experiment and affecting the experimental effect and efficiency. During the electromagnetic compatibility experiment, after the device is tested, the devices that meet the standards are placed inside the left side of the storage box 82, and the devices that do not meet the standards are placed inside the right side of the storage box 82, thus completing the electromagnetic compatibility test work.

[0034] Using the technical solution described in the present invention, or those skilled in the art being inspired by the technical solution of the present invention to design a similar technical solution and achieving the above technical effects shall fall within the protection scope of the present invention.

Claims

1. A multifunctional EMC electromagnetic compatibility test device, comprising a test bench (1), wherein support legs (2) are bolted to the four corners of the bottom of the test bench (1); a terminal block (3) is bolted to the rear of the upper end of the test bench (1); and a test device (4) is fixed to the left side of the upper end of the test bench (1); characterized in that: The test bench (1) in the multifunctional EMC electromagnetic compatibility test device is connected to an observable shielding box structure (5) at the middle position of the upper end; a slidable shielding interference frame structure (6) is also provided at the left side of the upper end of the test bench (1); a rotatable clamping fixed plate structure (7) is connected to the middle position of the left side of the upper end of the test bench (1); a pushable storage box structure (8) is provided at the bottom between the supporting legs (2); the observable shielding box structure (5) includes a box seat (51), and a shielding box (52) is inserted into the upper end of the box seat (51); and an observation piece (53) is embedded in the middle position of the top end of the shielding box (52).

2. The multifunctional EMC electromagnetic compatibility test device as claimed in claim 1, characterized in that: The slidable shielding interference frame structure (6) comprises a socket box (61), the upper end of which is bolted to the left and right sides of the bottom end of the shielding plate (62); a sliding hole (63) is horizontally opened in the middle position inside the shielding plate (62); a T-shaped movable seat (64) is slidably penetrated inside the sliding hole (63); and a first fixing plate (65) is respectively inserted into the bottom end of the socket box (61).

3. The multifunctional EMC electromagnetic compatibility test device according to claim 1, characterized in that: The rotatable clamping fixed plate structure (7) comprises a second fixed plate (71), the rear end of the second fixed plate (71) is fixed with a T-shaped fixed rod (72) by bolts; the left and right sides of the upper end outer wall of the T-shaped fixed rod (72) are respectively sleeved with rotating rings (73); the rotating rings (73) are respectively bolted to the left and right sides of the middle position of the rear end of the pressing plate (74); the bottom end of the pressing plate (74) is glued with a sponge strip (75).

4. The multifunctional EMC electromagnetic compatibility test device according to claim 1, characterized in that: The pushable storage box structure (8) comprises a bottom plate (81), a storage box (82) is bolted to the middle position of the upper end of the bottom plate (81); a storage cavity (83) is arranged inside the upper end of the storage box (82); and a separation plate (84) is arranged at the middle position of the inner wall of the storage cavity (83).

5. The multifunctional EMC electromagnetic compatibility test device according to claim 1, characterized in that: The box seat (51) is bolted to the left side of the middle position of the upper end of the test bench (1).

6. The multifunctional EMC electromagnetic compatibility test device as claimed in claim 2, characterized in that: The T-shaped movable seat (64) adopts a T-shaped PVC seat and an EMI filter or an electromagnetic interference device is fixed by bolts at the bottom end.

7. The multifunctional EMC electromagnetic compatibility test device as claimed in claim 2, characterized in that: The first fixing plate (65) is bolted to the left side of the upper end and the right side of the middle position of the upper end of the test bench (1); and the shielding plate (62) is arranged on the upper left side of the test bench (1).

8. The multifunctional EMC electromagnetic compatibility test device as claimed in claim 3, characterized in that: The second fixing plate (71) is bolted to the middle position of the upper left side of the test bench (1) and is arranged on the right side of the test equipment (4); the second fixing plate (71) is also arranged on the left side of the box seat (51).

9. The multifunctional EMC electromagnetic compatibility test device as claimed in claim 4, characterized in that: The bottom plate (81) is bolted to the lower part between the supporting legs (2); and the storage box (82) is arranged at a middle position below the test bench (1).

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