Electrical performance test tool for amorphous nanocrystalline magnetic core

Abstract

The utility model relates to the technical field of amorphous nanocrystalline magnetic core testing equipment, and discloses an amorphous nanocrystalline magnetic core electrical performance testing tool which comprises an epoxy plate, a plurality of sliding rails are arranged on the left side and the right side of the middle of the top end of the epoxy plate, and a plurality of assembling holes are formed in the front side and the rear side of the middle of the top end of the epoxy plate. An assembling column is fixedly connected to the inner wall of the assembling hole, a connecting block is fixedly connected to the top of the outer wall of the assembling column, outer spring sleeves are fixedly connected to the left side and the right side of the connecting block, a spring is fixedly connected to the left side of the inner wall of the outer spring sleeve on the right side, and an inner spring sleeve is fixedly connected to the other end of the spring. According to the utility model, the epoxy plate substrate ensures the stability of the test platform, the slide rail and the slide block are arranged to realize the movement of the positioning block, the assembly column fixes the connecting block, the outer spring sleeve, the spring and the inner spring sleeve form a rebound structure, the arc design of the positioning block facilitates the positioning and clamping of the magnetic ring, the fixing process is simplified, the working efficiency is improved, and the fixing requirement is met.

Description

Technical Field

[0001] This utility model relates to the technical field of testing equipment for amorphous and nanocrystalline magnetic cores, and in particular to a testing fixture for the electrical performance of amorphous and nanocrystalline magnetic cores. Background Technology

[0002] Amorphous and nanocrystalline magnetic cores, as a novel type of magnetic material, have wide applications in many fields such as power electronics, new energy, and communications. Their electrical properties play a crucial role in the performance of related equipment. Electrical performance testing fixtures are devices specifically designed to measure and analyze these electrical properties of amorphous and nanocrystalline magnetic cores. They include electrodes that can be electrically connected to the magnetic core, clamps for fixing the magnetic core, and necessary shielding structures. The aim is to simulate the actual working environment of the magnetic core, accurately obtain its electrical performance parameters under different conditions, and provide reliable data support for the quality inspection, product development, and selection of magnetic cores for practical applications.

[0003] A search revealed Chinese Patent Publication No. CN217638396U, which discloses a magnetic core stress resistance testing device, belonging to the field of magnetic core production. The key technical features include: a support platform and a storage groove on the support platform. Pressure plates are slidably connected to both sides of the storage groove on the support platform. An inclined surface for abutting the sample is provided on the side of the two pressure plates that are close to each other. An adjustment mechanism for adjusting the position of the pressure plates is provided on the support platform. In use, the adjustment mechanism drives the two pressure plates to slide simultaneously toward the sample until the inclined surfaces on the two pressure plates abut against both sides of the sample, resulting in uniform force on the sample and stable fixation. However, the above structure does not consider the convenience of testing. In actual testing, the tester must laboriously pass the test clamp through the magnetic core, especially for smaller magnetic rings, making this operation particularly difficult. Not only is the operation cumbersome and complex, but it also significantly slows down the testing and production pace. Furthermore, the size of the magnetic ring also affects the ease of fixation, reducing work efficiency and making it difficult to meet testing requirements. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides an electrical performance testing fixture for amorphous and nanocrystalline magnetic cores, aiming to improve the problems of insufficient compatibility caused by magnetic ring specifications in the prior art, increased testing costs, cumbersome operation during the testing process, slow installation speed, and reduced work efficiency.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: an electrical performance testing fixture for amorphous nanocrystalline magnetic cores, comprising an epoxy board, wherein multiple slide rails are provided on both the left and right sides of the top center of the epoxy board, and multiple assembly holes are provided on both the front and rear sides of the top center of the epoxy board. An assembly column is fixedly connected to the inner wall of the assembly hole, and a connecting block is fixedly connected to the top of the outer wall of the assembly column. An outer spring sleeve is fixedly connected to both the left and right sides of the connecting block. A spring is fixedly connected to the left side of the inner wall of the outer spring sleeve on the right side, and an inner spring sleeve is fixedly connected to the other end of the spring. A positioning block is fixedly connected to the right side of the inner spring sleeve, and sliders are fixedly connected to both the front and rear sides of the bottom of the positioning block. A testing mechanism is provided on the top of the epoxy board, and the testing mechanism is used for testing electrical performance.

[0006] Through the above technical solution: Epoxy board is a basic component used in electronic devices, ensuring stability and safety. The slide rail allows the epoxy board to slide flexibly to the positioning block, thereby improving the overall assembly efficiency and stability. The assembly hole facilitates the fixed connection between the epoxy board and the spring structure. The assembly column plays a fixing role and can withstand a certain amount of pressure. The connecting block provides more contact surface for the connection of the spring structure, thereby improving the reliability of the connection. The outer spring sleeve allows the inner spring sleeve to be connected by a spring, thus forming a spring structure. The positioning block accurately positions and fixes the center. The slider can slide freely on the slide rail, thereby achieving fast and smooth fixing. The testing mechanism is a device used to test electrical performance, which can accurately test the electrical performance of electronic components on the epoxy board, ensuring their reliability and stability during use.

[0007] As a further description of the above technical solution:

[0008] The testing mechanism includes screws, the outer walls of which are threaded to the top corner of the epoxy board. A copper sheet is fixedly connected to the top center of the screws. A magnetic ring is provided on the top of the copper sheet. A test rod is provided on the inner wall of the magnetic ring. A second wire is fixedly connected to the top of the test rod. A first wire is fixedly connected to the right side of the copper sheet. Test clips are installed on the right sides of both the first and second wires.

[0009] Through the above technical solution: multiple screws are the main fixing and connecting components, which are threaded to the top corner of the epoxy board to ensure the stability and reliability of the entire structure. The test material in the copper sheet fixture can effectively conduct current. The magnetic ring enhances the stability and concentration of the electromagnetic field, thereby improving the accuracy of the test. The test rod performs electrical performance testing on the fixture. The second wire can effectively transmit the test signal to the subsequent test equipment. The first wire enables the structural test to be completely connected. The test clamp makes connection and disassembly more convenient and quick, while also ensuring contact stability and safety during the test process, ensuring the efficiency and reliability of the test mechanism in practical applications.

[0010] As a further description of the above technical solution:

[0011] Rubber blocks are fixedly connected to the front and rear sides of the bottom of the epoxy board, and a base plate is fixedly connected to the bottom of the rubber blocks.

[0012] Through the above technical solutions, the rubber blocks ensure stable support and shock absorption in various working environments, and the base plate is made of high-strength materials that can withstand heavy loads without deformation.

[0013] As a further description of the above technical solution:

[0014] A bracket is installed on the top right side of the base plate, and a tester is rotatably connected to the inner wall of the bracket.

[0015] The above technical solution incorporates mechanical balance to ensure the stability of the tester during rotation, enabling the tester to perform various complex tests.

[0016] As a further description of the above technical solution:

[0017] A protective pad is fixedly connected to the right side of the tester, and a protective plate is fixedly connected to the top of the tester.

[0018] The above technical solution involves a protective pad made of soft material that prevents damage from collisions during testing. The protective plate not only prevents dust and debris from entering the tester but also protects it from damage in the event of an accidental collision.

[0019] As a further description of the above technical solution:

[0020] A display screen is fixedly connected to the left rear part of the tester, and an interface is fixedly connected to the left rear edge of the tester.

[0021] The above technical solution provides a display screen for users to view test results and related information, and an interface for connecting other devices and transmitting data.

[0022] As a further description of the above technical solution:

[0023] Multiple buttons are fixedly connected to the middle left side of the tester, and multiple buttons are fixedly connected to the front left side of the tester.

[0024] The above technical solution allows for two methods: one button is used to perform basic test operations and function selections, while the other button is used to perform more advanced and specific test functions.

[0025] As a further description of the above technical solution:

[0026] A rubber strip is fixedly connected to the inner wall of the positioning block, and the rubber strip has an arc-shaped structure.

[0027] The above technical solution provides a rubber strip with an arc-shaped structure, which can provide good contact and cushioning, ensuring a stable fixing process and preventing slippage.

[0028] This utility model has the following beneficial effects:

[0029] 1. In this utility model, an epoxy board is used as the base to ensure the stability and safety of the test platform. A slide rail is set on the board so that the positioning block can move by the slider. Since an assembly column is installed in the middle and a connecting block is fixed on the assembly column, the outer spring sleeve, the spring and the inner spring sleeve form a spring-loaded structure. The arc design of the positioning block connected to the spring-loaded structure allows the magnetic ring to be easily positioned and clamped, simplifying the fixing steps, improving work efficiency and meeting the fixing requirements.

[0030] 2. In this utility model, screws are used to fix the four corners of the epoxy board to prevent shaking during testing. A dual-wire design is adopted, with one wire connecting to the test copper plate and the other connecting to a flexible test rod. During testing, the wire is connected to the LCR bridge test clamp, and the test rod passes through the magnetic ring to contact the test copper plate, thus quickly completing the test. This method improves adaptability, reduces costs, increases efficiency, and meets testing requirements. Attached Figure Description

[0031] Figure 1 This is a front perspective view of the base plate of the electrical performance testing fixture for an amorphous nanocrystalline magnetic core proposed in this utility model.

[0032] Figure 2 This is a partial structural exploded view of the epoxy board of the electrical performance testing fixture for an amorphous nanocrystalline magnetic core proposed in this utility model.

[0033] Figure 3 This is a partial structural diagram of a spring used for testing the electrical performance of an amorphous nanocrystalline magnetic core, as proposed in this utility model.

[0034] Figure 4This is a partial structural diagram of a magnetic ring used for testing the electrical performance of an amorphous or nanocrystalline magnetic core, as proposed in this utility model.

[0035] Figure 5 This is a partial structural schematic diagram of a test fixture for testing the electrical performance of an amorphous or nanocrystalline magnetic core proposed in this utility model.

[0036] Legend:

[0037] 1. Epoxy board; 2. Testing mechanism; 201. Screw; 202. Copper sheet; 203. Magnetic ring; 204. Test rod; 205. Wire 1; 206. Wire 2; 207. Test clamp; 3. Slide rail; 4. Assembly hole; 5. Assembly column; 6. Connecting block; 7. Outer spring sleeve; 8. Spring; 9. Inner spring sleeve; 10. Positioning block; 11. Slider; 12. Bracket; 13. Tester; 14. Protective pad; 15. Protective plate; 16. Display screen; 17. Interface; 18. Button 1; 19. Button 2; 20. Rubber strip; 21. Rubber block; 22. Base plate. Detailed Implementation

[0038] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0039] Please see the appendix Figure 1 Appendix Figure 2 and attached Figure 3 This utility model provides an embodiment of an electrical performance testing fixture for an amorphous nanocrystalline magnetic core, comprising an epoxy plate 1, multiple slide rails 3 on the left and right sides of the top center of the epoxy plate 1, multiple assembly holes 4 on the front and back sides of the top center of the epoxy plate 1, an assembly column 5 fixedly connected to the inner wall of the assembly hole 4, a connecting block 6 fixedly connected to the top of the outer wall of the assembly column 5, an outer spring sleeve 7 fixedly connected to the left and right sides of the connecting block 6, a spring 8 fixedly connected to the left side of the inner wall of the right outer spring sleeve 7, an inner spring sleeve 9 fixedly connected to the other end of the spring 8, a positioning block 10 fixedly connected to the right side of the inner spring sleeve 9, and a slider 11 fixedly connected to the front and back sides of the bottom of the positioning block 10. A testing mechanism 2 is provided on the top of the epoxy plate 1, which is used to test electrical performance.

[0040] Specifically, epoxy board 1 is a basic component used in electronic devices to ensure stability and safety. The slide rail 3 allows epoxy board 1 to slide flexibly to the positioning block 10, thereby improving the overall assembly efficiency and stability. The assembly hole 4 facilitates the fixed connection between epoxy board 1 and the spring structure. The assembly column 5 plays a fixing role and can also withstand a certain pressure. The connecting block 6 provides more contact surfaces for the connection of the spring structure, thereby improving the reliability of the connection. The outer spring sleeve 7 allows the inner spring sleeve 9 to be connected through the spring 8, thereby forming a spring structure. The center is accurately positioned and fixed by the positioning block 10. The slider 11 can slide freely on the slide rail 3, thereby achieving fast and smooth fixing. The testing mechanism 2 is a device for testing electrical performance. It can perform accurate electrical performance tests on the electronic components on epoxy board 1 to ensure their reliability and stability during use.

[0041] Please see the appendix Figure 1 Appendix Figure 2 and attached Figure 4 The testing mechanism 2 includes screws 201. The outer walls of multiple screws 201 are threaded to the top corner of the epoxy board 1. A copper sheet 202 is fixedly connected to the top center of the screw 201. A magnetic ring 203 is provided on the top of the copper sheet 202. A test rod 204 is provided on the inner wall of the magnetic ring 203. A second wire 206 is fixedly connected to the top of the test rod 204. A first wire 205 is fixedly connected to the right side of the copper sheet 202. Test clips 207 are installed on the right side of both the first wire 205 and the second wire 206.

[0042] Specifically, multiple screws 201 are the main fixing and connecting components, threaded to the top corner of the epoxy board 1, ensuring the stability and reliability of the entire structure. The test material in the copper sheet 202 fixture can effectively conduct current. A magnetic ring 203 is set on the top of the copper sheet 202. The function of the magnetic ring 203 is to enhance the stability and concentration of the electromagnetic field, thereby improving the accuracy of the test. A test rod 204 is embedded in the inner wall of the magnetic ring 203 to perform electrical performance testing on the fixture. The top of the test rod 204 is fixedly connected to the second wire 206, so that the test signal can be effectively transmitted to the subsequent test equipment. Another wire 205 is also fixedly connected to the right side of the copper sheet 202, so that the structural test can be completed. Test clips 207 are installed on the right side of both the first wire 205 and the second wire 206. The test clips 207 make connection and disassembly more convenient and quick, while also ensuring contact stability and safety during the test process, ensuring the efficiency and reliability of the test mechanism 2 in practical applications.

[0043] Please see the appendix Figure 1 and attached Figure 5Rubber blocks 21 are fixedly connected to the bottom front and back sides of epoxy board 1. A base plate 22 is fixedly connected to the bottom of rubber blocks 21. A bracket 12 is installed on the top right side of the base plate 22. A tester 13 is rotatably connected to the inner wall of the bracket 12. A protective pad 14 is fixedly connected to the right side of the tester 13. A protective plate 15 is fixedly connected to the top of the tester 13.

[0044] Specifically, rubber blocks 21 are fixedly connected to the front and rear sides of the bottom of the epoxy board 1. These rubber blocks 21 ensure stable support and shock absorption in various working environments. The bottom of the rubber blocks 21 is fixedly connected to the base plate 22, which is made of high-strength material and can withstand heavy loads without deformation. A bracket 12 is installed on the top right side of the base plate 22. The bracket 12 takes mechanical balance into account to ensure the stability of the tester 13 when rotating. The inner wall of the bracket 12 is rotatably connected to the tester 13, which can perform various complex tests. A protective pad 14 is fixedly connected to the right side of the tester 13. The protective pad 14 is made of soft material and can prevent damage caused by collisions during testing. A protective plate 15 is fixedly connected to the top of the tester 13. The protective plate 15 can not only prevent dust and debris from entering the interior of the tester 13, but also prevent damage in case of accidental collisions.

[0045] Please see the appendix Figure 1 Appendix Figure 2 and attached Figure 5 The tester 13 has a display screen 16 fixedly connected to the left rear part, an interface 17 fixedly connected to the left rear edge of the tester 13, multiple buttons 18 fixedly connected to the left middle part of the tester 13, multiple buttons 29 fixedly connected to the left front part of the tester 13, and a rubber strip 20 fixedly connected to the inner wall of the positioning block 10. The rubber strip 20 has an arc-shaped structure.

[0046] Specifically, a display screen 16 is fixedly connected to the left rear of the tester 13 to allow users to view test results and related information. An interface 17 is also fixedly connected to the left rear edge of the tester 13. This interface 17 can be used to connect other devices and transmit data. Multiple buttons 18 are evenly fixedly connected to the left center of the tester 13. These buttons 18 are used to perform some basic test operations and function selections. Multiple buttons 29 are evenly fixedly connected to the left front of the tester 13. These buttons 29 are used to perform more advanced and specific test functions. The rubber strip 20 has an arc-shaped structure, which can provide good contact and cushioning, ensuring that the fixing process is stable and not easy to slip.

[0047] Working principle: By using a robust and highly insulating epoxy board 1 as the base material, the stability and safety of the test platform are ensured. Multiple slide rails 3 are set on the epoxy board 1, allowing the positioning block 10 to slide on it via the slider 11. The assembly column 5 is installed in the appropriate position in the middle. The connecting block 6 is fixed on the central assembly column 5, and an outer spring sleeve 7 is connected to the connecting block 6, forming a symmetrical and identical spring structure with the spring 8 and the inner spring sleeve 9 connected to the positioning block 10. Due to the arc-shaped structure of the positioning block 10, the circular magnetic ring 203 can be easily positioned and clamped in the required position, simplifying the fixing steps, improving the fixing effect and work efficiency, and meeting the fixing requirements.

[0048] By using screws 201 at the four corners of the epoxy board 1 as fixing devices, any shaking or displacement during the test is effectively prevented. In terms of test connection, the structure adopts a double wire design. Wire 1 205 is tightly connected to the test copper piece 202, and wire 2 206 is flexibly connected to the test rod 204. During the test, wire 1 205 and wire 2 206 are connected to the two test clips 207 of the LCR bridge. Then, the test rod 204 is passed through the magnetic ring 203 and gently brought into contact with the test copper piece 202 to quickly complete the test without cumbersome clamping and adjustment steps. This improves the compatibility of test models and specifications, can adapt to magnetic rings 203 of different sizes, reduces test costs, further improves test efficiency, and meets test requirements.

[0049] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A testing fixture for the electrical performance of an amorphous nanocrystalline magnetic core, comprising an epoxy plate (1), characterized in that: Multiple slide rails (3) are provided on the left and right sides of the top center of the epoxy board (1). Multiple assembly holes (4) are provided on the front and back sides of the top center of the epoxy board (1). An assembly column (5) is fixedly connected to the inner wall of the assembly hole (4). A connecting block (6) is fixedly connected to the top of the outer wall of the assembly column (5). An outer spring sleeve (7) is fixedly connected to the left and right sides of the connecting block (6). A spring (8) is fixedly connected to the left side of the inner wall of the outer spring sleeve (7) on the right side. An inner spring sleeve (9) is fixedly connected to the other end of the spring (8). A positioning block (10) is fixedly connected to the right side of the inner spring sleeve (9). A slider (11) is fixedly connected to the front and back sides of the bottom of the positioning block (10). A testing mechanism (2) is provided on the top of the epoxy board (1). The testing mechanism (2) is used to test electrical performance.

2. The electrical performance testing fixture for an amorphous nanocrystalline magnetic core according to claim 1, characterized in that: The testing mechanism (2) includes screws (201), the outer walls of multiple screws (201) are threaded to the top corner of the epoxy board (1), a copper sheet (202) is fixedly connected to the top center of the screw (201), a magnetic ring (203) is provided on the top of the copper sheet (202), a test rod (204) is provided on the inner wall of the magnetic ring (203), a second wire (206) is fixedly connected to the top of the test rod (204), a first wire (205) is fixedly connected to the right side of the copper sheet (202), and a test clip (207) is installed on the right side of both the first wire (205) and the second wire (206).

3. The electrical performance testing fixture for an amorphous nanocrystalline magnetic core according to claim 1, characterized in that: Rubber blocks (21) are fixedly connected to the front and rear sides of the bottom of the epoxy board (1), and a base plate (22) is fixedly connected to the bottom of the rubber blocks (21).

4. The electrical performance testing fixture for an amorphous nanocrystalline magnetic core according to claim 3, characterized in that: A bracket (12) is installed on the top right side of the base plate (22), and a tester (13) is rotatably connected to the inner wall of the bracket (12).

5. The electrical performance testing fixture for an amorphous nanocrystalline magnetic core according to claim 4, characterized in that: A protective pad (14) is fixedly connected to the right side of the tester (13), and a protective plate (15) is fixedly connected to the top of the tester (13).

6. The electrical performance testing fixture for an amorphous nanocrystalline magnetic core according to claim 4, characterized in that: The tester (13) has a display screen (16) fixedly connected to its left rear part, and an interface (17) fixedly connected to its left rear edge.

7. The electrical performance testing fixture for an amorphous nanocrystalline magnetic core according to claim 4, characterized in that: Multiple buttons (18) are fixedly connected to the middle left side of the tester (13), and multiple buttons (19) are fixedly connected to the front left side of the tester (13).

8. The electrical performance testing fixture for an amorphous nanocrystalline magnetic core according to claim 1, characterized in that: A rubber strip (20) is fixedly connected to the inner wall of the positioning block (10), and the rubber strip (20) has an arc-shaped structure.

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