A test fixture capable of adjusting inductance

Abstract

The utility model belongs to hall subassembly performance test technical field, concretely relates to a kind of test fixture of adjustable inductance, including base box, fixedly arranged on the base box base, positioning component and adjustable inductance component fixedly arranged on the base box are slidably arranged on the base;Wherein, the adjustable inductance component includes the first adjusting component being arranged in vertical direction and the second adjusting component being arranged in horizontal direction;Wherein, the first adjusting component uses mounting block, first adjusting hole being arranged in vertical direction is provided on the mounting block, first fixing member for connecting the first adjusting component and the second adjusting component is arranged in the first adjusting hole;The second adjusting component includes moving block and clamping plate, second adjusting hole being arranged in horizontal direction is provided on the moving block, second fixing member for connecting the moving block and the clamping plate is arranged in the second adjusting hole.

Description

Technical Field

[0001] This utility model belongs to the field of Hall effect component performance testing technology, specifically relating to a test fixture with adjustable inductance. Background Technology

[0002] The statements in this section are merely background information related to this utility model and do not necessarily constitute prior art.

[0003] A test fixture is a tool used to inspect, measure, and debug electronic products. It typically consists of various test point interfaces and testing instruments to ensure that the functionality and performance of electronic products meet design requirements. It can also be used for product testing and troubleshooting performance defects. Based on their application, test fixtures can be divided into functional test fixtures and performance test fixtures. Functional test fixtures are primarily used to check whether a product's functions are normal, while performance test fixtures are used to check whether the product's performance parameters meet standards. Based on their structure, test fixtures can be divided into manual test fixtures and automatic test fixtures. Manual test fixtures require manual operation, while automatic test fixtures can achieve automated testing through program control.

[0004] Traditional test fixtures test the product's performance by having test probes contact the product's pins and connecting the probe leads to the test instrument. The quality of the product is directly displayed on the measuring instrument, and it is impossible to adjust the product's inductance or other performance values. Utility Model Content

[0005] To address the aforementioned issues, this invention proposes a test fixture with adjustable inductance. Based on a traditional test fixture, an adjustable inductor component is added. The inductance value is adjusted by modifying the adjustable inductor component on the base (i.e., by adjusting the air gap position of the magnetic core), thus converting defective products into good ones and improving product testing efficiency and pass rate.

[0006] According to some embodiments, the present invention provides a test fixture with adjustable inductance, employing the following technical solution: An adjustable inductance testing fixture includes a base box, a base fixedly mounted on the base box, a positioning component slidably mounted on the base box, and an adjustable inductance component fixedly mounted on the base box. The adjustable inductance component includes a first adjusting component in a vertical direction and a second adjusting component in a horizontal direction. The first adjusting component is a mounting block with a first adjusting hole in a vertical direction, and a first fixing member for connecting the first adjusting component and the second adjusting component is disposed within the first adjusting hole. The second adjusting component includes a moving block and a clamping plate. The moving block has a second adjusting hole in a horizontal direction, and a second fixing member for connecting the moving block and the clamping plate is disposed within the second adjusting hole.

[0007] It should be noted that the first adjusting component is used to adjust the height of the second adjusting component, and the second adjusting component is used to adjust the horizontal width of the sample in order to clamp different products.

[0008] As a further technical limitation, a placement platform is provided on one side of the clamping plate, and a base is slidably disposed on the placement platform. A sliding groove is provided on the base on the side away from the clamping plate, and the sliding groove is engaged with a slide rail. A fine adjustment rod is linkedly disposed on the slide rail.

[0009] Furthermore, a positioning plate is provided on one side of the base, and a third adjustment hole is provided on the positioning plate. A third fixing member for connecting the positioning plate and the base is provided in the third adjustment hole.

[0010] Furthermore, the third fixing member is a bolt, which passes through the third adjusting hole and is threadedly connected to the base.

[0011] As a further technical limitation, the first fastener is a bolt, which passes through the first adjustment hole and is threadedly connected to the mounting block.

[0012] As a further technical limitation, the first fixing member adopts a threaded rod, which is disposed on the side of the mounting block away from the moving block. The moving block is provided with a sliding block, which extends out of the first adjustment hole after passing through the first adjustment hole, and the threaded rod passes through the sliding block.

[0013] As a further technical limitation, the second fastener is a bolt, which passes through the second adjustment hole and is threadedly connected to the clamping plate.

[0014] As a further technical limitation, the positioning component is slidably connected by a cylinder along a guide rail set along the length direction of the base.

[0015] As a further technical limitation, the base box is provided with four support feet around its bottom, and the top cover of the base box is rotatably connected to the base box by a locking mechanism.

[0016] Furthermore, the upper cover is provided with a magnet for attracting the adjustable inductor component.

[0017] Compared with the prior art, the beneficial effects of this utility model are as follows: This invention adds an adjustable inductor component to the traditional test fixture. The inductance value is adjusted by adjusting the adjustable inductor component on the base (that is, the inductance is adjusted by adjusting the air gap position of the magnetic core), which turns defective products into good products and improves the testing efficiency and pass rate of the products. Attached Figure Description

[0018] The accompanying drawings, which form part of this specification, are used to provide a further understanding of this utility model. The illustrative embodiments of this utility model and their descriptions are used to explain this utility model and do not constitute an improper limitation of this utility model.

[0019] Figure 1 This is a schematic diagram of a test fixture with adjustable inductance in an embodiment of the present invention. Figure 2 This is another structural schematic diagram of the adjustable inductance test fixture in this embodiment of the present invention; Figure 3 This is a schematic diagram of the adjustable inductor component in an embodiment of the present utility model. Figure 4 This is a schematic diagram of the adjustable inductor component in an embodiment of the present utility model. Figure 5 This is a schematic diagram of the adjustable inductor component in an embodiment of the present utility model. Figure 6 This is an exploded structural diagram of the adjustable inductor component in an embodiment of the present invention; Figure 7 This is a cross-sectional structural diagram of the base in an embodiment of the present utility model; Figure 8 This is a top view of the base structure in an embodiment of the present utility model; The components include: 1. Base; 2. Adjustable inductor; 3. Positioning component; 4. Base box; 5. Guide rail; 6. Cylinder; 7. Support foot; 8. Probe; 9. Magnet; 10. Lock; 11. Mounting block; 12. Moving block; 13. Clamping plate; 14. Threaded rod; 15. Fine-tuning rod; 16. Slide rail; 17. Sliding groove; 18. Base; 19. Positioning plate; 20. Placement platform; 21. Second adjustment hole; 22. Third fixing component; 23. First adjustment hole; 24. First fixing component; 25. Second fixing component; 26. Third adjustment hole; 27. Spring; 28. Adjustment plate; 29. ​​Adjustment column. Detailed Implementation

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0021] It should be noted that the following detailed description is illustrative and intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains.

[0022] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to the present invention. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0023] In this utility model, terms such as "upper", "lower", "left", "right", "front", "back", "vertical", "horizontal", "side", and "bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only used to facilitate the description of the structural relationship between the various components or elements of this utility model and do not specifically refer to any component or element in this utility model. They should not be construed as limiting this utility model.

[0024] In this utility model, terms such as "fixed connection," "connected," and "joined" should be interpreted broadly, indicating a fixed connection, an integral connection, or a detachable connection; a direct connection or an indirect connection through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in this utility model can be determined according to the specific circumstances, and should not be construed as a limitation of this utility model.

[0025] Example This utility model embodiment introduces a test fixture with adjustable inductance.

[0026] like Figure 1 and Figure 2 The adjustable inductance test fixture shown includes a base box 4, a base 1 fixedly mounted on the base box 4, a positioning component 3 slidably mounted on the base 1, and an adjustable inductance component 2 fixedly mounted on the base box 4. Four support feet 7 are provided around the bottom of the base box 4. The top cover of the base box 4 is rotatably connected to the base box via a latch 10. A magnet 9 for attracting the adjustable inductance component 2 is provided on the top cover. The positioning component 3 is slidably connected to a guide rail 5 along the length of the base 1 via a cylinder 6. A probe 8 is provided on the positioning component 3.

[0027] like Figure 3 , Figure 4 , Figure 5 and Figure 6 The adjustable inductor component shown includes a first adjusting component (not labeled in the figure) disposed in the vertical direction and a second adjusting component (not labeled in the figure) disposed in the horizontal direction. The first adjusting component is a mounting block 11, which has two first adjusting holes 23 disposed in the vertical direction. A first fixing member 24 for connecting the first adjusting component and the second adjusting component is disposed in the first adjusting hole 23. The second adjusting component includes a moving block 12 and two clamping plates 13. The moving block 12 has two second adjusting holes 21 disposed in the horizontal direction. A second fixing member 25 for connecting the moving block 12 and the clamping plates 13 is disposed in the second adjusting hole 21.

[0028] It should be noted that the first adjustment holes 23 are all set along the height direction of the mounting block 11, and the first fixing members 24 all pass through the first adjustment holes 23 and then are threadedly connected to the second adjustment members; one end of the clamping plate 13 is inserted into the corresponding second adjustment hole 21, and can slide relative to each other in the second adjustment hole 21. The second fixing member 25 set on the moving block 12 realizes the fixed connection between the moving block 12 and the clamping plate 13.

[0029] In this embodiment, the first fixing member 24 is a bolt, which passes through the first adjusting hole 23 and is threadedly connected to the mounting block 11.

[0030] like Figure 4 As shown, the first fixing member 24 adopts a threaded rod 14, which is located on the side of the mounting block 11 away from the moving block 12. The moving block 12 is provided with a sliding block (not marked in the figure), which extends out of the first adjustment hole 23 after passing through the first adjustment hole 23, and the threaded rod 14 passes through the sliding block.

[0031] In this embodiment, the second fixing member 25 is a bolt, which passes through the second adjusting hole 21 and is threadedly connected to the clamping plate 13.

[0032] like Figure 5 and Figure 6As shown, a sample placement platform 20 is provided on one side of the clamping plate 13. A base 18 is slidably mounted on the placement platform 20. A sliding groove 17 is provided on the base 18 on the side away from the clamping plate 13. The sliding groove 17 is engaged with the slide rail 16. A fine adjustment rod 15 is linked on the slide rail 16. The fine adjustment rod 15 enables the fine adjustment and movement of the base 18. A positioning plate 19 is provided on one side of the base 18. A third adjustment hole 26 is provided on the positioning plate 19. A third fixing member 22 for connecting the positioning plate 19 and the base 18 is provided in the third adjustment hole 26.

[0033] It should be noted that the base 18 in this embodiment can adopt a U-shaped skeleton positioning plate, a grooved module for fixing the magnetic core, and an adjustable regulator; turning the knob of the regulator to the left moves the magnetic core module backward, and turning it to the right moves the module forward. The knob is engraved with size scales, which can achieve precise adjustment.

[0034] It should be noted that the third fastener 22 is a bolt, which passes through the third adjustment hole 26 and is threadedly connected to the base 18.

[0035] In this embodiment, after the sample position is fixed, the air gap position between the frame and the magnetic core is adjusted by the first and second adjustment components, and then the probe is driven by a cylinder to test the sample performance. In addition, the magnet on the top cover allows for easy disassembly and installation of the base, making it easy to apply adhesive and replace the sample for inductance testing and air gap adjustment.

[0036] like Figure 7 and Figure 8 As shown, to accommodate different samples placed on the base, the base 18 is provided with a placement groove (not marked in the figure) for placing samples. Adjustment plates 28 are provided on the opposite side walls of the placement groove. A spring 27 is provided between the adjustment plate 28 and the groove wall. To improve the stability of the adjustment plate 28 in holding the sample, an adjustment column 29 is provided between the adjustment plate 28 and the placement groove. The groove wall corresponding to the placement groove is provided with a corresponding through hole. The adjustment column is inserted into the through hole and slides.

[0037] This invention adds an adjustable inductor component to the traditional testing fixture. The height of the second adjusting component is adjusted based on the first adjusting component, and the horizontal width of the sample is adjusted based on the second adjusting component to clamp different products. The inductance value is adjusted by adjusting the adjustable inductor component on the base (i.e., the inductance is adjusted by adjusting the air gap position of the magnetic core), so that defective products can be converted into good products. This improves the testing efficiency and pass rate of products.

[0038] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

[0039] Although the specific embodiments of the present utility model have been described above in conjunction with the accompanying drawings, this is not intended to limit the scope of protection of the present utility model. Those skilled in the art should understand that various modifications or variations that can be made by those skilled in the art without creative effort based on the technical solution of the present utility model are still within the scope of protection of the present utility model.

Claims

1. A test fixture with adjustable inductance, characterized in that, The device includes a base box, a base fixedly mounted on the base box, a positioning component slidably mounted on the base box, and an adjustable inductor component fixedly mounted on the base box. The adjustable inductor component includes a first adjusting component in a vertical direction and a second adjusting component in a horizontal direction. The first adjusting component is a mounting block with a first adjusting hole in a vertical direction, and a first fixing member for connecting the first adjusting component and the second adjusting component is disposed within the first adjusting hole. The second adjusting component includes a moving block and a clamping plate. The moving block has a second adjusting hole in a horizontal direction, and a second fixing member for connecting the moving block and the clamping plate is disposed within the second adjusting hole.

2. The test fixture with adjustable inductance as described in claim 1, characterized in that, A placement platform is provided on one side of the clamping plate, and a base is slidably mounted on the placement platform. A sliding groove is provided on the base on the side away from the clamping plate. The sliding groove is engaged with a slide rail, and a fine-tuning rod is linked to the slide rail.

3. The test fixture with adjustable inductance as described in claim 2, characterized in that, A positioning plate is provided on one side of the base, and a third adjustment hole is provided on the positioning plate. A third fixing member for connecting the positioning plate and the base is provided in the third adjustment hole.

4. The test fixture with adjustable inductance as described in claim 3, characterized in that, The third fixing component is a bolt, which passes through the third adjusting hole and is threadedly connected to the base.

5. The test fixture with adjustable inductance as described in claim 1, characterized in that, The first fixing component is a bolt, which passes through the first adjusting hole and is threadedly connected to the mounting block.

6. The test fixture with adjustable inductance as described in claim 1, characterized in that, The first fixing member is a threaded rod, which is located on the side of the mounting block away from the moving block. The moving block is provided with a sliding block, which extends out of the first adjustment hole after passing through it, and the threaded rod passes through the sliding block.

7. The test fixture with adjustable inductance as described in claim 1, characterized in that, The second fastener is a bolt, which passes through the second adjustment hole and is threadedly connected to the clamping plate.

8. The test fixture with adjustable inductance as described in claim 1, characterized in that, The positioning component is slidably connected to a guide rail set along the length of the machine base by a cylinder.

9. A test fixture with adjustable inductance as described in claim 1, characterized in that, The base box has four supporting feet around its bottom, and the top cover of the base box is rotatably connected to the base box by a locking mechanism.

10. A test fixture with adjustable inductance as described in claim 9, characterized in that, The upper cover is provided with a magnet for attracting the adjustable inductor component.

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