Test fixture for Hall sensor

Abstract

The utility model relates to the technical field of Hall sensor auxiliary testing devices, in particular to a testing clamp for a Hall sensor. According to the technical scheme, the testing device comprises a sensor body and further comprises a testing box body, a containing groove is formed in the top of the testing box body, clamping assemblies are arranged on the two sides in the containing groove, and each clamping assembly comprises clamping pieces which are installed on the two sides of the containing groove in a sliding mode and matched with a clamping groove. And the wiring assembly is used for being connected with the junction box and is adjustable in height. According to the utility model, the clamping piece can be controlled to fix or loosen the sensor by pulling the pulling plate, the operation is simple and rapid, the operation efficiency is improved, and the skill requirements of operators are reduced; meanwhile, the height-adjustable wiring assembly is adopted, so that the test fixture can conveniently adapt to the positions of sensor junction boxes of different models, the compatibility of the test fixture to sensors of different specifications is improved, and test delay caused by wiring difficulty is reduced.

Description

Technical Field

[0001] This utility model relates to the technical field of Hall sensor auxiliary testing devices, and in particular to a test fixture for Hall sensors. Background Technology

[0002] With the rapid development of electronic technology, Hall effect sensors have been widely used in many fields, such as automotive electronics, industrial automation, and smart homes. They can detect changes in magnetic fields based on the Hall effect and convert them into electrical signals, thereby enabling precise measurement of physical quantities such as position, velocity, and current. Therefore, performance testing and quality inspection of Hall effect sensors are particularly important.

[0003] In the prior art, there is a Hall sensor test fixture, which includes a sensor body and a test box. The sensor body has positioning slots in the middle of both sides of the bottom end. It also includes a positioning component on the top of the test box. The positioning component includes a rotating shaft that is rotatably fitted at the bottom end on both sides of the center of the top plate and a knob fixed at the top of the rotating shaft. It also includes a rotatably mounted wiring assembly.

[0004] In the above process, when fixing the sensor, it is necessary to first align the positioning slot with the knob and lower it precisely, then rotate the knob to a specific position to hold the sensor, and then manually rotate the support shaft to make the wiring assembly correspond to the sensor socket and connect. The operation steps are complicated and the operation efficiency is low. Therefore, we propose a test fixture for Hall sensors. Summary of the Invention

[0005] The purpose of this invention is to address the problems of cumbersome operation steps and low operation efficiency of existing test fixtures in the background art, and to propose a test fixture for Hall sensors.

[0006] The technical solution of this utility model: A test fixture for a Hall sensor, comprising a sensor body, with slots on both sides of the bottom of the sensor body, and a junction box on one side of the sensor body, and further comprising:

[0007] The test chamber has an integrated test circuit board inside. The top of the test chamber has a placement slot, and clamping components are provided on both sides of the placement slot.

[0008] The clamping assembly includes engaging components that are slidably mounted on both sides of the placement slot and adapted to the slot;

[0009] An adjustable-height wiring assembly for connection to the junction box.

[0010] Optionally, the clamping assembly further includes mounting slots on both sides of the placement slot, the engaging member is slidably mounted on the side of the mounting slot near the placement slot, and pull plates for controlling the engaging member are slidably mounted on both sides of the test box.

[0011] Optionally, a fixing rod is fixedly installed in the mounting groove, and a movable plate sleeved on the fixing rod is slidably installed in the mounting groove, with the movable plate fixedly connected to the engaging member.

[0012] Optionally, a first spring is fixedly installed between the movable plate and the mounting groove, and a rod that is fixedly connected to the pull plate is fixedly installed on the side of the movable plate away from the engaging member.

[0013] Optionally, a pressure plate is slidably mounted on the top of one end of the engaging component, a telescopic rod is fixedly mounted between the engaging component and the pressure plate, and a second spring sleeved on the outside of the telescopic rod is fixedly mounted between the engaging component and the pressure plate.

[0014] Optionally, the wiring assembly includes a groove formed on one side of the test box, a plate slidably installed in the groove, sliding grooves on both sides of the groove, a guide rod fixedly installed in the sliding groove, and both ends of the plate slidably sleeved on the outside of the guide rod.

[0015] Optionally, a sleeve is fixedly installed at the bottom of the groove, and a movable rod is threadedly connected to the sleeve. The movable rod is rotatably connected to the plate body through a bearing.

[0016] Optionally, a fixed shaft is fixedly installed on the top of the plate, and a sliding connector is mounted on the fixed shaft. A connector adapted to the junction box is fixedly installed on the side of the connector near the placement groove.

[0017] In summary, this application includes at least one of the following beneficial technical effects:

[0018] This utility model uses a sliding locking component that engages with a slot at the bottom of the sensor body. Simply pulling the pull plate controls the locking component to fix or loosen the sensor, making the operation simple and quick. Compared with traditional test fixtures, it reduces complex knob rotation and positioning operations, improves operational efficiency, and lowers the skill requirements for operators.

[0019] Furthermore, the wiring assembly features a height-adjustable design, which can easily adapt to the position of junction boxes for different sensor models, improving the compatibility of the test fixture with sensors of different specifications and reducing test delays caused by wiring difficulties.

[0020] This invention allows for easy and quick fixation or release of the sensor by pulling a pull plate, simplifying operation, improving efficiency, and reducing operator skill requirements. Furthermore, the height-adjustable wiring assembly facilitates adaptation to different sensor junction box positions, enhancing the compatibility of the test fixture with various sensor specifications and reducing testing delays caused by wiring difficulties. Attached Figure Description

[0021] Figure 1 A schematic diagram of the overall structure of this utility model is provided;

[0022] Figure 2 for Figure 1 A magnified schematic diagram of the partial structure at point A in the middle;

[0023] Figure 3 A front sectional view of the present invention is provided;

[0024] Figure 4 for Figure 3 A magnified schematic diagram of the structure at point B in the middle.

[0025] Reference numerals in the attached drawings: 1. Sensor body; 2. Test box; 201. Placement slot; 202. Groove; 203. Slide groove; 204. Guide rod; 3. Pull plate; 4. Wiring component; 5. Connector; 6. Fixed shaft; 7. Plate; 8. Sleeve; 81. Moving rod; 9. Junction box; 10. Pressure plate; 11. Mounting slot; 12. Moving plate; 13. Rod body; 14. Fixed rod; 15. First spring; 16. Clamping component; 17. Second spring; 18. Telescopic rod. Detailed Implementation

[0026] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this utility model, but not all embodiments.

[0027] The components of the present invention embodiments described and shown in the accompanying drawings can typically be arranged and designed in a variety of different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention.

[0028] Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0029] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0030] It should be noted that the terms "comprising," "including," or any other variations thereof are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0031] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0032] Example

[0033] like Figures 1 to 4 As shown, the present invention proposes a test fixture for a Hall sensor, including a sensor body 1, with slots on both sides of the bottom of the sensor body 1, a junction box 9 on one side of the sensor body 1, and a test box 2, which integrates a test circuit board. The top of the test box 2 has a placement slot 201, and clamping components are provided on both sides of the placement slot 201.

[0034] The clamping assembly includes engaging members 16 that are slidably installed on both sides of the placement slot 201 and adapted to the slot. The clamping assembly also includes mounting slots 11 on both sides of the placement slot 201. The engaging members 16 are slidably installed on the side of the mounting slot 11 closest to the placement slot 201. Pull plates 3 for controlling the engaging members 16 are slidably installed on both sides of the test chamber 2. A fixing rod 14 is fixedly installed in the mounting slot 11. A movable plate 12, sleeved on the fixing rod 14, is slidably installed in the mounting slot 11. The movable plate 12 is fixedly connected to the engaging members 16. Pulling the pull plate 3 pulls... The plate 3 drives the moving plate 12 to move away from the placement slot 201 via the rod 13, causing the locking member 16 to exit from the slot. At the same time, the pressure plate 10 releases the pressure on the sensor body 1 as the locking member 16 moves away. At this time, the sensor body 1 can be taken out from the placement slot 201. This realizes that the locking member 16 can be controlled to fix or loosen the sensor body 1 simply by pulling the pull plate 3. The operation is simple and quick. Compared with traditional test fixtures, it reduces the complicated knob rotation and positioning operations, improves the operation efficiency, and reduces the skill requirements of the operator.

[0035] A first spring 15 is fixedly installed between the movable plate 12 and the mounting groove 11. A rod 13 fixedly connected to the pull plate 3 is fixedly installed on the side of the movable plate 12 away from the engaging member 16. A pressure plate 10 is slidably installed on the top of one end of the engaging member 16. A telescopic rod 18 is fixedly installed between the engaging member 16 and the pressure plate 10. A second spring 17 sleeved on the outside of the telescopic rod 18 is fixedly installed between the engaging member 16 and the pressure plate 10. The pressure plate 10 presses the top of both sides of the sensor body 1 under the action of the second spring 17, further enhancing the fixing effect. The telescopic rod 18 can ensure that the pressure plate 10 moves smoothly within a certain range and prevent the pressure plate 10 from tilting and affecting the fixing.

[0036] In this embodiment, an adjustable-height wiring assembly for connecting to the junction box 9 is also included. The wiring assembly includes a groove 202 formed on one side of the test box 2, a plate 7 slidably installed in the groove 202, and sliding grooves 203 are provided on both sides of the groove 202. A guide rod 204 is fixedly installed in the sliding groove 203, and both ends of the plate 7 are slidably sleeved on the outside of the guide rod 204.

[0037] A sleeve 8 is fixedly installed at the bottom of the groove 202. A movable rod 81 is threadedly connected to the sleeve 8. The movable rod 81 is rotatably connected to the plate 7 through a bearing. When the movable rod 81 inside the sleeve 8 is rotated, since the movable rod 81 is rotatably connected to the plate 7 through the bearing, and the two ends of the plate 7 are slidably sleeved on the guide rod 204, the rotation of the movable rod 81 will cause the plate 7 to slide up and down in the groove 202, thereby adjusting the height of the connector 4.

[0038] Finally, a fixed shaft 6 is fixedly installed on the top of the plate 7, and a sliding connector 5 is mounted on the fixed shaft 6. A connector 4 adapted to the junction box 9 is fixedly installed on the side of the connector 5 near the placement slot 201. By pushing the connector 5 to slide on the fixed shaft 6, the connector 4 can be accurately aligned with the junction box 9 on one side of the sensor body 1, thus completing the wiring process. This allows for easy adaptation to the position of the junction box 9 of different sensor models, improves the compatibility of the test fixture with different specifications of sensors, and reduces test delays caused by wiring difficulties.

[0039] The working principle of this embodiment is as follows: During the working process, the sensor body 1 is placed into the placement slot 201. When the sensor body 1 is fully inserted into the placement slot 201, the pull plate 3 is released. Under the action of the first spring 15, the locking part 16 slides inward and locks into the slot, thus achieving the initial fixation of the sensor body 1. At this time, the moving plate 12 and the rod 13 slide in the mounting slot 11. At the same time, the pressure plate 10 at the top of the locking part 16 presses the top of both sides of the sensor body 1 under the action of the second spring 17, further enhancing the fixing effect. The telescopic rod 18 can ensure that the pressure plate 10 moves smoothly within a certain range and prevent the pressure plate 10 from tilting and affecting the fixation.

[0040] The initial position of the wiring assembly can be preset according to the height of the junction box 9 of the sensor body 1 to be tested. When it is necessary to adjust the height of the wiring assembly to adapt to different sensors, the moving rod 81 inside the rotating sleeve 8 is rotated. Since the moving rod 81 is rotatably connected to the plate 7 through the bearing, and the two ends of the plate 7 are slidably sleeved on the guide rod 204, the rotation of the moving rod 81 will drive the plate 7 to slide up and down in the groove 202, thereby adjusting the height of the wiring component 4 and pushing the connector 5 to slide on the fixed shaft 6, so that the wiring component 4 can be accurately aligned with the junction box 9 on one side of the sensor body 1, thereby completing the wiring process. This enables convenient adaptation to the position of the junction box 9 of different sensor models, improves the compatibility of the test fixture with different specifications of sensors, and reduces test delays caused by wiring difficulties.

[0041] Once the sensor body 1 is fixed and the connector 4 is connected to the junction box 9, the integrated test circuit board inside the test housing 2 begins to operate. The test circuit board supplies power to the sensor body 1 through the connector and receives the electrical signals output by the sensor for testing. After the test is completed, when it is necessary to disassemble the sensor body 1, pull the pull plate 3 again. The pull plate 3 drives the moving plate 12 away from the placement slot 201 through the rod 13, causing the locking piece 16 to exit from the slot. At the same time, the pressure plate 10 releases the pressure on the sensor body 1 as the locking piece 16 moves away. At this time, the sensor body 1 can be removed from the placement slot 201, completing one test cycle and preparing for the next sensor test. This allows the locking piece 16 to be fixed or released from the sensor body 1 simply by pulling the pull plate 3. The operation is simple and quick. Compared with traditional test fixtures, it reduces complex knob rotation and positioning operations, improves operating efficiency, and reduces the skill requirements of operators.

[0042] The above specific embodiments are merely several optional embodiments of this utility model. Based on the technical solution of this utility model and the relevant teachings of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

Claims

1. A test fixture for a Hall sensor, comprising a sensor body (1), wherein slots are provided on both sides of the bottom of the sensor body (1), and a junction box (9) is provided on one side of the sensor body (1), characterized in that, Also includes: Test box (2), the test box (2) integrates a test circuit board, the top of the test box (2) is provided with a placement slot (201), and clamping components are provided on both sides of the placement slot (201); The clamping assembly includes a locking member (16) that is slidably mounted on both sides of the placement slot (201) and adapted to the slot. Adjustable height wiring assembly for connection with the junction box (9).

2. The test fixture for a Hall sensor according to claim 1, characterized in that, The clamping assembly also includes mounting slots (11) on both sides of the placement slot (201), and the locking member (16) is slidably mounted on the side of the mounting slot (11) near the placement slot (201). Pull plates (3) for controlling the locking member (16) are slidably mounted on both sides of the test box (2).

3. A test fixture for a Hall sensor according to claim 2, characterized in that, A fixing rod (14) is fixedly installed in the mounting groove (11), and a movable plate (12) sleeved on the fixing rod (14) is slidably installed in the mounting groove (11). The movable plate (12) is fixedly connected to the locking member (16).

4. A test fixture for a Hall sensor according to claim 3, characterized in that, A first spring (15) is fixedly installed between the movable plate (12) and the mounting groove (11), and a rod (13) fixedly connected to the pull plate (3) is fixedly installed on the side of the movable plate (12) away from the locking member (16).

5. A test fixture for a Hall sensor according to claim 4, characterized in that, A pressure plate (10) is slidably installed on the top of one end of the locking member (16), and a telescopic rod (18) is fixedly installed between the locking member (16) and the pressure plate (10). A second spring (17) sleeved on the outside of the telescopic rod (18) is fixedly installed between the locking member (16) and the pressure plate (10).

6. A test fixture for a Hall sensor according to claim 1, characterized in that, The wiring assembly includes a groove (202) on one side of the test box (2), a plate (7) is slidably installed in the groove (202), and a sliding groove (203) is provided on both sides of the groove (202). A guide rod (204) is fixedly installed in the sliding groove (203), and both ends of the plate (7) are slidably sleeved on the outside of the guide rod (204).

7. A test fixture for a Hall sensor according to claim 6, characterized in that, A sleeve (8) is fixedly installed at the bottom of the groove (202), and a moving rod (81) is threadedly connected to the sleeve (8). The moving rod (81) is rotatably connected to the plate (7) through a bearing.

8. A test fixture for a Hall sensor according to claim 7, characterized in that, A fixed shaft (6) is fixedly installed on the top of the plate (7), and a sliding connector (5) is mounted on the fixed shaft (6). A connector (4) adapted to the junction box (9) is fixedly installed on the side of the connector (5) near the placement groove (201).

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