Hall sensor iron core test tool
By designing a testing fixture for Hall sensor cores, it is possible to simultaneously test multiple cores and adapt to Hall sensor cores of different specifications, solving the problems of low testing efficiency and high cost of existing equipment, and improving testing efficiency and applicability.
Patent Information
- Application Number
- CN202520111730.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-17
- Publication Date
- 2025-12-09
- Estimated Expiration
- 2035-01-17
AI Technical Summary
Existing Hall sensor core testing equipment can only test one core at a time, resulting in low testing efficiency and an inability to adapt to cores of different specifications, leading to increased costs.
Design a Hall sensor core testing fixture. By manually pushing the moving base, a copper plate passes through the inside of the core, and a large current is applied to measure the change in magnetic flux. This allows for the simultaneous testing of multiple cores and is adaptable to various specifications.
It improves detection efficiency, can simultaneously measure multiple Hall sensor cores, has a wide range of applications, and reduces the cost of changing test fixtures.
Smart Images
Figure CN223649939U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of testing fixture technology, and in particular to a testing fixture for a Hall sensor core. Background Technology
[0002] Testing fixtures are required when testing iron cores, so a Hall sensor iron core testing fixture is used.
[0003] When performing production testing on Hall sensor cores, only a single Hall sensor core can typically be tested, resulting in slow testing efficiency. Furthermore, existing Hall sensor cores come in various models and specifications, requiring different testing fixtures to be used when testing multiple different specifications, which increases costs. To address these issues, this application proposes a testing fixture for Hall sensor cores. Utility Model Content
[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a testing fixture for Hall sensor cores. This device involves manually pushing a movable base to allow a copper plate to pass through the inside of the core, then applying a large current, and measuring the change in magnetic flux of the core to determine whether the core meets production quality specifications. It can also measure multiple Hall sensor cores at once, improving testing efficiency, and can test Hall sensor cores of various specifications, making it widely applicable.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] A testing fixture for Hall sensor cores includes a test base. Two guide rails are fixedly connected to the top of the test base. Two sliders are slidably connected to the outer wall of each guide rail. The two pairs of sliders are fixedly connected to a movable base. A test fixture is fixedly connected to the top of the movable base. Multiple pairs of Hall sensor cores are mounted on the top of the test fixture. A first copper busbar is fixedly connected to the top of the test base, with a first wire fixedly connected to one end of the first copper busbar. A second copper busbar and a third copper busbar are fixedly connected to the top of the test base, with a second wire fixedly connected to one end of the third copper busbar. Two conductive mechanisms are provided on the top of the test base. Each conductive mechanism includes a fixed plate fixedly connected to the top of the movable base. Two T-shaped pins are slidably connected to the fixed plate. A copper plate is fixedly connected to the two T-shaped pins. A spring is fitted onto the outer wall of each T-shaped pin, with both ends of each spring fixedly connected to the fixed plate and the copper plate, respectively.
[0007] Preferably, the top of the test fixture has a groove, and the Hall sensor core is inserted into the groove.
[0008] Preferably, the first copper busbar, the second copper busbar, and the third copper busbar are all installed and fixed to the top of the test base by bolts.
[0009] Preferably, a vertical plate is fixedly connected to the top of the movable base, and an opening is provided through the vertical plate.
[0010] Preferably, the first copper busbar, the second copper busbar, and the third copper busbar are all installed and fixed to the test base by bolts.
[0011] Preferably, handles are installed on the side walls of both the test base and the movable base, and the outer walls of the handles are covered with protective sleeves.
[0012] Compared with the prior art, the advantages of this utility model are as follows:
[0013] 1. This device uses manual pushing of a movable base to allow a copper plate to pass through the inside of the iron core, then applies a large current, and measures the change in the magnetic flux of the iron core to determine whether the iron core meets the production quality specifications.
[0014] 2. This device can measure multiple Hall sensor cores at once, which improves the detection efficiency.
[0015] 3. This device can place Hall sensor cores of various specifications into the groove, and can test Hall sensor cores of various specifications, making it widely applicable.
[0016] In summary, this device manually pushes the moving base to allow the copper plate to pass through the inside of the iron core, then applies a large current, and measures the change in the magnetic flux of the iron core to determine whether the iron core meets the production quality specifications. It can measure multiple Hall sensor iron cores at the same time, improving the efficiency of the test, and can test Hall sensor iron cores of various specifications, making it widely applicable. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the first structure of a Hall sensor core testing fixture proposed in this utility model;
[0018] Figure 2 This is a top view of a Hall sensor core testing fixture proposed in this utility model;
[0019] Figure 3 This is a schematic diagram of the second structure of a Hall sensor core testing fixture proposed in this utility model;
[0020] Figure 4 This is a schematic diagram of the third structure of a Hall sensor core testing fixture proposed in this utility model.
[0021] In the diagram: 1 Test base, 2 Guide rail, 3 Slider, 4 Moving base, 5 Test fixture, 6 Hall sensor core product, 7 First wire, 8 First copper busbar, 9 Second copper busbar, 10 Third copper busbar, 11 Second wire, 12 Fixing plate, 13 T-pin, 14 Spring, 15 Copper plate, 16 Vertical plate, 17 Through port. Detailed Implementation
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0023] Reference Figures 1-4 A Hall sensor core testing fixture includes a test base 1. Two guide rails 2 are fixedly connected to the top of the test base 1. Two sliders 3 are slidably connected to the outer wall of each guide rail 2. A movable base 4 is fixedly connected to both the test base 1 and the movable base 4. Handles are installed on the side walls of both the test base 1 and the movable base 4. Protective sleeves are fitted onto the outer walls of the handles. A test fixture 5 is fixedly connected to the top of the movable base 4. Multiple pairs of Hall sensor core products 6 are mounted on the top of the test fixture 5. The top of the test fixture 5 has a groove, which is an arc-shaped groove, to limit and fix Hall sensor core products 6 of different sizes. The multiple Hall sensor core products 6 have the same width. The Hall sensor core products 6 are inserted into the groove for installation and limiting.
[0024] A first copper busbar 8 is fixedly connected to the top of the test base 1. A first wire 7 is fixedly connected to one end of the first copper busbar 8. The first wire 7 is the current inlet. A second copper busbar 9 and a third copper busbar 10 are fixedly connected to the top of the test base 1. A second wire 11 is fixedly connected to one end of the third copper busbar 10. The second wire 11 is the current outlet, forming a circuit. The first copper busbar 8, the second copper busbar 9, and the third copper busbar 10 are all installed and fixed to the top of the test base 1 by bolts.
[0025] The top of the test base 1 is provided with two conduction mechanisms. The conduction mechanism includes a fixed plate 12 fixedly connected to the top of the movable base 4. Two T-shaped pins 13 are slidably connected to the fixed plate 12. The two T-shaped pins 13 are fixedly connected to a copper plate 15. The copper plate 15 is conductive. A spring 14 is sleeved on the outer wall of each T-shaped pin 13. The two ends of each spring 14 are fixedly connected to the fixed plate 12 and the copper plate 15 respectively. The top of the movable base 4 is fixedly connected to a vertical plate 16. A through-hole 17 is opened through the vertical plate 16. When the movable base 4 moves, the first copper busbar 8, the second copper busbar 9 and the third copper busbar 10 pass through the through-hole 17 until they abut against the side wall of the copper plate 15, forming a passage, which can be used to test the copper plate 15.
[0026] In this invention, the operator places the Hall sensor core product 6 into the groove to complete the installation and fixation of the Hall sensor core product 6. The operator then energizes the first wire 7 and the second wire 11 to form a circuit. The operator moves the moving base 4, which can be stabilized by the cooperation of the guide rail 2 and the slider 3. The movement of the moving base 4 drives the test fixture 5 and multiple Hall sensor core products 6 to move until the multiple Hall sensor core products 6 are respectively inserted into the corresponding first copper busbar 8, second copper busbar 9 and third copper busbar 10. As the moving base 4 continues to move, the ends of the first copper busbar 8, second copper busbar 9 and third copper busbar 10 penetrate the opening 1 on the upright plate 16. 7. Continue until the ends of the first copper busbar 8, the second copper busbar 9, and the third copper busbar 10 contact the copper plate 15. During this process, the T-shaped pin 13 slides on the fixed plate 12 and the spring 14 is compressed, causing the first copper busbar 8 and the second copper busbar 9 to abut against one of the copper plates 15, and causing the second copper busbar 9 and the third copper busbar 10 to abut against the other copper plate 15. This completes the formation of a circuit for the first wire 7, the first copper busbar 8, the copper plate 15, the second copper busbar 9, the other copper plate 15, the third copper busbar 10, and the second wire 11. A large current flows through multiple copper busbars and the copper busbars pass through the interior of the iron core. The magnetic field will change. By testing the change in the magnetic field, the product is determined to be OK / NG (good / bad). The current flowing through the iron core must be consistent.
Claims
1. A testing fixture for a Hall sensor core, comprising a testing base (1), characterized in that, The test base (1) has two guide rails (2) fixedly connected to its top. Each guide rail (2) has two sliders (3) slidably connected to its outer wall. The two pairs of sliders (3) are fixedly connected to a movable base (4). The top of the movable base (4) is fixedly connected to a test fixture (5). The top of the test fixture (5) is equipped with multiple pairs of Hall sensor core products (6). The top of the test base (1) is fixedly connected to a first copper busbar (8). One end of the first copper busbar (8) is fixedly connected to a first wire (7). The top of the test base (1) is fixedly connected to a second copper busbar (9). The top of the test base (1) is fixedly connected to a third copper busbar (10). One end of the third copper busbar (10) is fixedly connected to a second wire (11). The top of the test base (1) is provided with two conduction mechanisms. The transmission mechanism includes a fixed plate (12) fixedly connected to the top of the movable base (4). Two T-shaped pins (13) are slidably connected to the fixed plate (12). The two T-shaped pins (13) are fixedly connected to a copper plate (15). A spring (14) is sleeved on the outer wall of each T-shaped pin (13). The two ends of each spring (14) are fixedly connected to the fixed plate (12) and the copper plate (15) respectively.
2. The Hall sensor core testing fixture according to claim 1, characterized in that, The test fixture (5) has a groove on its top, and the Hall sensor core product (6) is inserted into the groove.
3. The Hall sensor core testing fixture according to claim 1, characterized in that, The first copper busbar (8), the second copper busbar (9) and the third copper busbar (10) are all installed and fixed to the top of the test base (1) by bolts.
4. The Hall sensor core testing fixture according to claim 1, characterized in that, The top of the movable base (4) is fixedly connected to a vertical plate (16), and a through opening (17) is provided on the vertical plate (16).
5. The Hall sensor core testing fixture according to claim 1, characterized in that, The first copper busbar (8), the second copper busbar (9) and the third copper busbar (10) are all installed and fixed to the test base (1) by bolts.
6. The Hall sensor core testing fixture according to claim 1, characterized in that, Handles are installed on the side walls of the test base (1) and the movable base (4), and the outer walls of the handles are covered with protective sleeves.