An electromagnetic compatibility adjustable inductance filter test device

Abstract

The utility model discloses a kind of electromagnetic compatibility adjustable inductance filter test device, including box, chute is opened in box;Inductance coil is transversely arranged in box;Supporting assembly is slid in chute;Inductance core is arranged on supporting assembly, and one end of inductance core far from supporting assembly moves in inductance coil transversely.This utility model is through the elastic pressure of spring one, and the board is tightly closed to tightly closed wall, so that supporting rod and inductance core position are fixed;When inductance core position needs to be adjusted, by pinching board sliding tightly closed board, compress spring one so that it is separated from tightly closed wall, supporting assembly can be slid to be pushed, so as to change inductance core position;After loosening pinching board, tightly closed board is again tightly closed to tightly closed wall, realize position fixation;The stability of inductance core position after adjustment is guaranteed, the accurate adjustment demand of inductance core position under different test scene is satisfied, the practicability and reliability of device are improved.

Description

Technical Field

[0001] This utility model relates to an adjustable inductance filter test device for electromagnetic compatibility, belonging to the technical field of electromagnetic compatibility testing equipment. Background Technology

[0002] In the field of electromagnetic compatibility (EMC) adjustable inductor filter testing devices, traditional devices have many shortcomings in terms of inductor core position adjustment and fixation. Previously, some devices involved complex inductor core position adjustment operations, requiring multiple tools or cumbersome steps to achieve fine-tuning. This not only increased the workload of operators but also reduced testing efficiency. Furthermore, after adjustment, it was difficult to effectively fix the inductor core position, leading to easy displacement of the inductor core during testing, affecting the accuracy of test results, and failing to meet the requirements for precise inductor core position adjustment in different testing scenarios. Therefore, an EMC adjustable inductor filter testing device is proposed. Utility Model Content

[0003] To address the aforementioned technical shortcomings, the purpose of this utility model is to provide an electromagnetic compatibility adjustable inductor filter test device, which ensures the stability of the inductor core position after adjustment, meets the requirements for precise adjustment of the inductor core position under different test scenarios, and improves the practicality and reliability of the device.

[0004] To solve the above-mentioned technical problems, this utility model adopts the following technical solution: This utility model provides an electromagnetic compatibility adjustable inductor filter test device, comprising:

[0005] The housing has a sliding groove.

[0006] An inductor coil, wherein the inductor coil is arranged laterally inside the housing;

[0007] Support assembly, which slides within a groove;

[0008] An inductor core, one end of which is detachably mounted on a support assembly, and the end of the inductor core away from the support assembly moves laterally within the inductor coil.

[0009] Preferably, the support component includes:

[0010] The upper clamping plate slides above the slide groove;

[0011] The lower clamping plate slides below the slide groove;

[0012] A connecting bolt, which connects the upper clamping plate and the lower clamping plate;

[0013] A support rod is fixed to a lower clamping plate, and the inductor core is detachably connected to the lower end of the support rod.

[0014] Preferably, a plurality of ball bearings are rotatably connected to the lower part of the upper clamping plate and the upper part of the lower clamping plate, and the plurality of ball bearings are rolled on the side wall of the slide groove.

[0015] Preferably, a recessed groove is provided on the box body and above the slide groove, and abutment walls are provided on both sides of the recessed groove;

[0016] Both sides of the upper clamping plate are slidably connected to abutting plates via springs. One end of the abutting plate is movably pressed against the side wall of the abutting wall, and a pinching plate is fixed on the abutting plate.

[0017] Preferably, both the abutting wall and the abutting plate have anti-slip textures on their side walls.

[0018] Preferably, the box body has a scale line on one side of the settling trough, and the upper clamp plate is provided with a pointer.

[0019] Preferably, the lower end of the support rod is provided with a plug groove, and a pressure block for pressing the inductor core is slidably connected to the inside of the support rod and above the plug groove by a spring.

[0020] A pull rod is fixed on the pressure block, and the upper end of the pull rod passes through the lower clamping plate and the upper clamping plate and extends to the outside.

[0021] Preferably, the lower end of the pressure block is provided with a pressure groove that fits against the outer wall of the inductor core, a limit block is fixedly connected to the side wall of the pressure groove, and a limit groove is formed on the side wall of the end of the inductor core away from the inductor coil;

[0022] When the pressure block presses the inductor core into the insertion slot, the limiting block is pressed into the interior of the limiting slot.

[0023] Preferably, a handle is fixed to one end of the inductor core near the limiting groove, and a pick-up and put-out hole is provided on the housing directly opposite the inductor core;

[0024] The box body is provided with a slide rail, one end of which coincides with the loading and unloading hole. A baffle is slidably connected inside the slide rail, and a fastening bolt for fixing the baffle is engaged with the baffle.

[0025] Preferably, a dust cover for covering the slide is rotatably connected to the housing, and the dust cover is made of transparent material.

[0026] Compared with existing technologies:

[0027] 1. The support assembly of this utility model adopts a structure in which the upper and lower clamping plates are connected by connecting bolts, making them an integral whole and allowing them to slide synchronously along the sliding groove. This facilitates the adjustment of the overall position, and the support rod connected to the lower clamping plate can stably support the inductor core. Under the spring pressure, the clamping plate presses against the clamping wall, fixing the position of the support rod and the inductor core. When it is necessary to adjust the position of the inductor core, the clamping plate is slid by the pinching plate, compressing the spring and disengaging it from the clamping wall, which pushes the support assembly to slide, thereby changing the position of the inductor core. After releasing the pinching plate, the clamping plate presses against the clamping wall again, achieving position fixation. This design simplifies the adjustment and fixing of the inductor core position, and the anti-slip texture on the side wall of the clamping wall and the clamping plate enhances the clamping effect, ensuring the stability of the inductor core position after adjustment. This meets the precise adjustment requirements of the inductor core position under different test scenarios, improving the practicality and reliability of the device.

[0028] 2. This utility model uses a spring to slide and connect a pressure block, which can press the inductor core. A pull rod is fixed to the pressure block for easy movement. The lower end of the pressure block has a groove that fits against the outer wall of the inductor core. A limit block is located on the side wall of the groove, and an annular limit groove is formed at the corresponding position on the inductor core. When the pressure block presses the inductor core firmly, the limit block is pressed into the limit groove, effectively preventing axial movement of the inductor core within the insertion groove and ensuring the stability of the inductor core installation. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the structure of this utility model;

[0030] Figure 2 This is an exploded cross-sectional view of the support rod, inductor core, and pressure block of this utility model;

[0031] Figure 3 This is an overall sectional view of the present invention;

[0032] Figure 4 This is a cross-sectional view of the housing, slide, inductor coil, and support rod of this utility model;

[0033] Figure 5 This is a cross-sectional view of the housing, support rod, insertion groove, and pressure block of this utility model;

[0034] Figure 6 For the present utility model Figure 5 Place the diagram at point A;

[0035] Figure 7 This is an exploded view of the housing, loading / unloading hole, slide, baffle, and fastening bolts of this utility model.

[0036] In the picture:

[0037] 1. Box body;

[0038] 101. Slide groove; 102. Settling groove; 103. Abutting wall; 104. Pick-up and drop-off hole; 105. Slide rail; 106. Scale line;

[0039] 2. Inductor coil;

[0040] 3. Support components;

[0041] 301. Upper clamping plate; 302. Lower clamping plate; 303. Connecting bolt; 304. Support rod; 3041. Insertion groove; 305. Ball bearing; 306. Spring 1; 307. Clamping plate; 308. Pinch plate.

[0042] 4. Inductor core;

[0043] 401, Limiting groove; 402, Handle;

[0044] 5. Spring 2; 6. Pressure block; 601. Pressure groove; 602. Limiting block; 7. Pull rod;

[0045] 8. Baffle; 9. Fastening bolts;

[0046] 10. Dust cover;

[0047] 11. Pointer. Detailed Implementation

[0048] The present invention is illustrated below with specific embodiments, but these are not intended to limit the scope of the invention.

[0049] Example 1

[0050] like Figures 1-7 As shown in this embodiment, an adjustable inductor filtering test device for electromagnetic compatibility is provided, including a housing 1 with a slide groove 101. An inductor coil 2 is laterally arranged inside the housing 1, distributed along the length of the slide groove 101. A support assembly 3 slides within the slide groove 101. An inductor core 4 is detachably mounted on the support assembly 3, with one end of the inductor core 4, away from the support assembly 3, moving laterally within the inductor coil 2. A dust cover 10, made of transparent material, is rotatably connected to the housing 1 to cover the slide groove 101.

[0051] Example 2

[0052] like Figures 2-6As shown, based on Embodiment 1, in this embodiment, the support assembly 3 includes an upper clamping plate 301 and a lower clamping plate 302. The upper clamping plate 301 slides above the slide groove 101; the lower clamping plate 302 slides below the slide groove 101. The upper clamping plate 301 and the lower clamping plate 302 are connected by connecting bolts 303. The number of connecting bolts 303 can be two. Holes for the connecting bolts 303 to pass through are provided on the upper clamping plate 301 and the lower clamping plate 302. The threaded ends of the two connecting bolts 303 pass through the upper clamping plate 301 and the slide groove 101 and then engage with the lower clamping plate 302. On the clamping plate 302, the connecting bolt 303 connects the upper clamping plate 301 and the lower clamping plate 302 into one piece. The upper clamping plate 301 and the lower clamping plate 302 can be connected to the upper and lower parts of the slide groove 101 respectively by the connecting bolt 303. When the upper clamping plate 301 is pushed, the upper clamping plate 301, the lower clamping plate 302 and the connecting bolt 303 can slide synchronously along the slide groove 101. A support rod 304 is fixed on the lower clamping plate 302. The support rod 304 can be fixed on the lower clamping plate 302 by bolts. The inductor core 4 is detachably connected to the lower end of the support rod 304.

[0053] Multiple balls 305 are rotatably connected to the lower part of the upper clamping plate 301 and the upper part of the lower clamping plate 302, and the multiple balls 305 are rotatably connected to the side wall of the slide groove 101.

[0054] A settling groove 102 is provided on the box body 1 and above the slide groove 101, and abutting walls 103 are provided on both sides of the settling groove 102.

[0055] Both sides of the upper clamping plate 301 are slidably connected to the abutment plate 307 by spring 306. One end of the abutment plate 307 is movably pressed against the side wall of the abutment wall 103, and a pinch plate 308 is fixed on the abutment plate 307.

[0056] Both the sidewalls of the clamping wall 103 and the clamping plate 307 are provided with anti-slip textures.

[0057] Under the spring pressure of spring 306, the abutment plate 307 presses against the side wall of the abutment wall 103. At this time, the support rod 304 is fixed in a certain position. Thus, the support rod 304 supports the inductor core 4, causing the inductor core 4 to be in a certain position of the inductor coil 2. When it is necessary to adjust the position of the inductor core 4, the abutment plate 307 is slid by the pinch plate 308, causing the abutment plate 307 to compress the spring 306 and slide, causing the abutment plate 307 to press against the side wall 103. When disconnected, the support assembly 3 can slide on the slide groove 101. Since the inductor core 4 is connected to the support rod 304, the position of the inductor core 4 can change with the movement of the support assembly 3, thereby adjusting the position of the inductor core 4. When the pinch plate 308 is released, the abutment plate 307 will press against the abutment wall 103 again. The cooperation between the abutment plate 307 and the abutment wall 103 fixes the adjusted inductor core 4.

[0058] A scale line 106 is provided on the box body 1 and on one side of the settling trough 102, and a pointer 11 is provided on the upper clamping plate 301.

[0059] Example 3

[0060] like Figures 1-6 As shown, based on Embodiment 1, in this embodiment, the lower end of the support rod 304 is provided with a plug groove 3041, and the inside of the support rod 304 and above the plug groove 3041 is slidably connected by a spring 5 to a pressure block 6 for pressing the inductor core 4.

[0061] A pull rod 7 is fixed on the pressure block 6. The upper end of the pull rod 7 passes through the lower clamping plate 302 and the upper clamping plate 301 and extends to the outside.

[0062] The lower end of the pressure block 6 is provided with a pressure groove 601 that fits against the outer wall of the inductor core 4. A limit block 602 is fixedly connected to the side wall of the pressure groove 601. A limit groove 401 is opened on the side wall of the inductor core 4 away from the inductor coil 2. The limit groove 401 is opened in a ring shape inside the inductor core 4.

[0063] When the pressure block 6 presses the inductor core 4 into the insertion slot 3041, the limiting block 602 is pressed into the interior of the limiting slot 401 to prevent the inductor core 4 from moving axially within the insertion slot 3041.

[0064] A handle 402 is fixed at one end of the inductor core 4 near the limiting groove 401, and a pick-up and put-out hole 104 is provided on the housing 1 directly opposite the inductor core 4.

[0065] The housing 1 has a slide rail 105, one end of which coincides with the loading and unloading hole 104. A baffle 8 is slidably connected inside the slide rail 105. A fastening bolt 9 for fixing the baffle 8 is engaged with the baffle 8. The threaded end of the fastening bolt 9 can pass through the baffle 8 and abut against the side wall of the slide rail 105. In this way, the fastening bolt 9 can fix the baffle 8. When the threaded end of the fastening bolt 9 releases its pressure on the slide rail 105, the baffle 8 can slide inside the slide rail 105.

[0066] When installing the inductor core 4, move the support assembly 3 to the end of the slide groove 101 near the pick-up and put-out hole 104, slide the baffle 8 to open the pick-up and put-out hole 104, and then pull the pull rod 7 upward. At this time, the pressure block 6 compresses the spring 5 and slides upward. In this state, insert the inductor core 4 into the insertion slot 3041 and make the limiting slot 401 face the limiting block 602. Then release the pull rod 7. In this way, the pressure block 6 presses the inductor core 4 into the insertion slot 3041. At the same time, the limiting block 602 is inserted into the limiting slot 401, so that the inductor core 4 can be installed into the housing 1.

[0067] After sliding the support assembly 3, the handle 402 slides into the housing 1, then slides the baffle 8 to block the pick-up and drop-off hole 104, and then uses the fastening bolt 9 to fix the baffle 8 to prevent external dust from entering the housing 1 through the pick-up and drop-off hole 104.

[0068] When disassembling the inductor core 4, after opening the pick-up and drop-out hole 104, move the support assembly 3 to the slide 105 near the pick-up and drop-out hole 104. At this time, the handle 402 extends out from the pick-up and drop-out hole 104. Pull the pressure block 6 upward through the pull rod 7. The inductor core 4 can be pulled out through the handle 402, thus removing the inductor core 4.

[0069] Finally, it should be noted that the above embodiments are only used to illustrate and not limit the technical solutions of this utility model. Although this utility model has been described in detail with reference to the above embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to this utility model without departing from the spirit and scope of this utility model. Any modifications or partial substitutions should be covered within the scope of the claims of this utility model.

Claims

1. An electromagnetic compatibility adjustable inductor filter test device, characterized in that, include: Box (1), on which a sliding groove (101) is provided; Inductor coil (2), the inductor coil (2) is arranged laterally inside the housing (1); Support component (3), which slides within the groove (101); An inductor core (4) is provided at one end on a support assembly (3), and the end of the inductor core (4) away from the support assembly (3) moves laterally within the inductor coil (2).

2. The electromagnetic compatibility adjustable inductor filter test device according to claim 1, characterized in that, The support component (3) includes: Upper clamping plate (301), which slides above the slide groove (101); The lower clamping plate (302) slides below the slide groove (101); Connecting bolt (303), the connecting bolt (303) connects the upper clamping plate (301) and the lower clamping plate (302); Support rod (304), which is fixed on lower clamp plate (302), and inductor core (4) is detachably connected to the lower end of support rod (304).

3. The electromagnetic compatibility adjustable inductor filter test device according to claim 2, characterized in that, Multiple balls (305) are rotatably connected to the lower part of the upper clamping plate (301) and the upper part of the lower clamping plate (302), and the multiple balls (305) are rotatably connected to the side wall of the slide groove (101).

4. The electromagnetic compatibility adjustable inductor filter test device according to claim 2, characterized in that, A sinkhole (102) is provided on the box body (1) and above the slide groove (101), and abutment walls (103) are provided on both sides of the sinkhole (102). Both sides of the upper clamping plate (301) are slidably connected to abutting plates (307) via springs (306). One end of the abutting plate (307) is movably pressed against the side wall of the abutting wall (103), and a pinching plate (308) is fixed on the abutting plate (307).

5. The electromagnetic compatibility adjustable inductor filter test device according to claim 4, characterized in that, Both the abutting wall (103) and the abutting plate (307) have anti-slip textures on their side walls.

6. The electromagnetic compatibility adjustable inductor filter test device according to claim 2, characterized in that, A scale line (106) is provided on the box body (1) and on one side of the sink (102), and a pointer (11) is provided on the upper clamping plate (301).

7. The electromagnetic compatibility adjustable inductor filter test device according to claim 2, characterized in that, The lower end of the support rod (304) is provided with a plug groove (3041), and a pressure block (6) for pressing the inductor core (4) is slidably connected to the inside of the support rod (304) and above the plug groove (3041) by a spring (5). A pull rod (7) is fixed on the pressure block (6). The upper end of the pull rod (7) passes through the lower clamping plate (302) and the upper clamping plate (301) and extends to the outside.

8. The electromagnetic compatibility adjustable inductor filter test device according to claim 7, characterized in that, The lower end of the pressure block (6) is provided with a pressure groove (601) that fits against the outer wall of the inductor core (4). A limit block (602) is fixedly connected to the side wall of the pressure groove (601). A limit groove (401) is opened on the side wall of the inductor core (4) away from the inductor coil (2). When the pressure block (6) presses the inductor core (4) into the insertion slot (3041), the limiting block (602) is pressed into the inside of the limiting slot (401).

9. The electromagnetic compatibility adjustable inductor filter test device according to claim 8, characterized in that, A handle (402) is fixed at one end of the inductor core (4) near the limiting groove (401), and a pick-up and put-out hole (104) is provided in the housing (1) directly opposite the inductor core (4). The box (1) is provided with a slide (105), one end of which coincides with the take-up and put-out hole (104). A baffle (8) is slidably connected inside the slide (105), and a fastening bolt (9) for fixing the baffle (8) is engaged on the baffle (8).

10. The electromagnetic compatibility adjustable inductor filter test device according to claim 1, characterized in that, The housing (1) is rotatably connected to a dust cover (10) for covering the slide (101), and the dust cover (10) is made of transparent material.

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