Sensor coil anti-geomagnetic interference test fixture

Abstract

The utility model provides a kind of sensor coil anti geomagnetic interference test fixture, it is related to sensor coil detection field, test fixture includes base, test assembly and the rotating assembly of the connection base and test assembly, rotating assembly is rotatably connected with base, and test assembly is used to install sensor;Test fixture further includes limiting component, limiting component includes two baffle and the corner block for being arranged on rotating assembly, baffle and corner block are located in the same plane, corner block rotates to adjust the test angle of sensor with rotating assembly rotation, and two baffles are oppositely arranged and staggered arrangement in the opposite ends of base.This application rotates test assembly by rotating assembly, on the one hand, it can satisfy the test requirement of 180 ° direction difference;On the other hand, so that test assembly can rotate according to preset angle;Precise limiting is realized by the cooperation of baffle and corner block in limiting component, avoid depending on manual adjustment and confirm sensor coil position and direction, improve test efficiency.

Description

Technical Field

[0001] This utility model relates to the field of sensor coil detection technology, and in particular to a sensor coil anti-geomagnetic interference testing fixture. Background Technology

[0002] High-precision sensor coils are susceptible to interference from the geomagnetic field and stray magnetic fields in the environment, which can lead to zero drift or deterioration of linearity. Since the Earth's magnetic field is not a uniform scalar field, but a spatial vector with both direction and intensity attributes, it is necessary to conduct geomagnetic interference resistance tests on the sensor coils to verify the degree of influence of geomagnetic fields in different directions on the sensor coils.

[0003] In traditional testing, on the one hand, the lack of a precise direction adjustment mechanism makes it difficult to accurately control the test direction, failing to meet the test requirement of 180° direction difference, affecting the accuracy and repeatability of test data, and resulting in low testing efficiency; on the other hand, traditional testing methods rely on manual adjustment and confirmation of the sensor coil position and direction, which is cumbersome and time-consuming, making it difficult to meet the needs of mass production testing. Utility Model Content

[0004] Based on this, the purpose of this utility model is to provide a sensor coil anti-geomagnetic interference test fixture to solve the technical problems that the existing test fixtures cannot meet the test requirements of 180° directional difference and rely on manual adjustment and confirmation of the position and direction of the sensor coil, resulting in cumbersome operation.

[0005] This utility model provides a sensor coil anti-geomagnetic interference test fixture, including a base, a test component, and a rotating component connecting the base and the test component. The rotating component is rotatably connected to the base, and the test component is used to mount the sensor. The test fixture also includes a limiting component, which includes two baffles and a corner block disposed on the rotating component. The baffles and the corner block are located on the same plane. The corner block rotates with the rotating component to adjust the test angle of the sensor. The two baffles are disposed at opposite ends of the base and are staggered.

[0006] The aforementioned sensor coil anti-geomagnetic interference test fixture drives the test component to rotate through the rotating component. On the one hand, it can meet the test requirement of 180° directional difference; on the other hand, it enables the test component to rotate according to a preset angle; furthermore, the cooperation between the baffle and the corner block in the limiting component achieves precise limiting, avoiding reliance on manual adjustment and confirmation of the sensor coil position and direction, thus improving test efficiency.

[0007] In addition, the sensor coil anti-geomagnetic interference test fixture according to the present invention may also have the following additional technical features: Furthermore, the test assembly includes a first rotating upper seat, which includes a base plate and a support plate disposed on the base plate; The test assembly also includes a second rotating upper seat and a third rotating upper seat that are detachably connected to the base plate, and the support plate, the second rotating upper seat and the third rotating upper seat are arranged at intervals in sequence.

[0008] Furthermore, the test assembly also includes several clip probes. The support plate has several pin holes, and each pin hole contains a clip probe. The clip probe is connected to the pin hole and fixedly connected to the second rotating upper seat. The coil pin of the sensor is connected to the clip probe through the pin hole to achieve quick insertion and removal.

[0009] Furthermore, one end of the clip probe, away from the support plate, protrudes from the second rotating upper seat to provide a test pin.

[0010] Furthermore, the support plate is also provided with several positioning holes, which are used to position the sensor.

[0011] Furthermore, the third rotating upper seat has a receiving groove on the side away from the second rotating upper seat, and the receiving groove is used to fix the PCB board.

[0012] Furthermore, the base is provided with a bearing hole, and the rotating assembly includes a bearing and a round bar. The bearing is disposed in the bearing hole and rotatably connects the base and the round bar. The round bar connects the test assembly and the bearing. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the test fixture from the main view in an embodiment of this utility model; Figure 2 This is a schematic diagram of the test fixture from the rear view in an embodiment of this utility model; Figure 3 This is a schematic diagram of the structure of the test component in an embodiment of this utility model; Figure 4 for Figure 3 Exploded structural diagram; Explanation of key component symbols:

[0014] The following detailed description, in conjunction with the accompanying drawings, will further illustrate this utility model. Detailed Implementation

[0015] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. Several embodiments of this utility model are shown in the drawings. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of this utility model will be more thorough and complete.

[0016] It should be noted that when a component is said to be "fixed to" another component, it can be directly on the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0017] Unless otherwise defined, 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. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0018] To address the technical problems of existing test fixtures failing to meet the 180° directional difference testing requirements and the cumbersome operation resulting from reliance on manual adjustment and confirmation of the sensor coil's position and orientation, this application provides a sensor coil anti-geomagnetic interference test fixture. This fixture utilizes a rotating component to drive the test component to rotate, thus meeting the 180° directional difference testing requirement and allowing the test component to rotate according to a preset angle. Furthermore, precise positioning is achieved through the cooperation of a baffle and a corner block in the limiting component, eliminating the need for manual adjustment and confirmation of the sensor coil's position and orientation, and improving testing efficiency.

[0019] To facilitate understanding of this utility model, several embodiments are provided below. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to make the disclosure of this utility model more thorough and complete.

[0020] Example 1 Please see Figures 1-4The image shows a sensor coil anti-geomagnetic interference test fixture in the first embodiment of this utility model, including a base 100, a test component 200, and a rotating component 300 connecting the base 100 and the test component 200. The rotating component 300 is rotatably connected to the base 100. The test component 200 is used to install the sensor 500. As a specific example, the sensor includes a fluxgate sensor, and the fluxgate sensor includes a fluxgate coil. Furthermore, the test fixture also includes a limiting component 400, which includes two baffles 410 and a corner block 420 disposed on the rotating component 300. The corner block 420 rotates with the rotating component 300 to adjust the test angle of the sensor 500. To ensure that the baffles 410 and the corner block 420 can contact each other for limiting, specifically, the baffles 410 and the corner block 420 are located on the same plane. Furthermore, to enable the sensor 500 under test to achieve 180° angle adjustment, in this embodiment, the two baffles 410 are disposed at opposite ends of the base 100 and staggered, so that the staggered space can adapt to the thickness of the corner block 420, thereby enabling the sensor 500 to achieve 180° angle adjustment. In the actual testing process, the test component 200 can precisely rotate to a specified angle according to preset parameters. After reaching the specified angle, it is limited by the corner block 420, thereby achieving accurate measurement of different angle values.

[0021] As a specific example, the test assembly 200 includes a first rotating upper seat 210, a second rotating upper seat 220, and a third rotating upper seat 230 disposed on the first rotating upper seat 210. Further, the first rotating upper seat 210 includes a base plate 211 and a support plate 212 disposed on the base plate 211; the second rotating upper seat 220 and the third rotating upper seat 230 are both disposed on the base plate 211 and detachably connected to the base plate 211, so that the first rotating upper seat 210, the second rotating upper seat 220, and the third rotating upper seat 230 can be quickly disassembled or assembled according to different models and sizes, thereby improving the versatility of the test fixture. Furthermore, the support plate 212, the second rotating upper seat 220, and the third rotating upper seat 230 are arranged sequentially at intervals, so that the support plate 212 and the second rotating upper seat 220 can be combined to form the fixing end of the sensor 500, facilitating the fixing of the sensor 500 and the extension of the coil pin to connect to the clamping probe 240. Secondly, the third rotating upper seat 230 is arranged at intervals with the second rotating upper seat 220. On the one hand, the space between the two facilitates the formation of a receiving space for the clamping probe 240; on the other hand, the space between the third rotating upper seat 230 and the second rotating upper seat 220 also provides convenient space for the routing of the PCB board 600 on the third rotating upper seat 230. Furthermore, the side of the third rotating upper seat 230 away from the second rotating upper seat 220 is provided with a receiving groove, which is used to fix the PCB board 600.

[0022] Furthermore, to facilitate quick assembly and disassembly of the sensor 500 from the test fixture during testing, in this embodiment, the test assembly 200 further includes several clamping probes 240, and the support plate 212 has several pin holes. The coil pins of the sensor 500 are connected to the clamping probes 240 through the pin holes to achieve quick insertion and removal. Specifically, each pin hole contains a clamping probe 240, which is connected to the pin hole and fixedly connected to the second rotating upper seat 220. Further, one end of the clamping probe 240 away from the support plate 212 protrudes from the second rotating upper seat 220 to provide a test pin. The PCB board 600 is connected to the coil pins of the sensor 500 through the clamping probes 240 to achieve testing. Connecting the product through the clamping probes 240, on the one hand, facilitates quick and easy insertion and removal, improving testing efficiency; on the other hand, the connection between the clamping probes 240 and the coil pins of the sensor 500 improves the stability of the connection.

[0023] As a specific example, to further secure the sensor 500, in this embodiment, the support plate 212 is also provided with a plurality of positioning holes 250, which are used to position the sensor 500. Specifically, the positioning holes 250 can be configured according to the sensor 500.

[0024] To enable the test component 200 to rotate, in this embodiment, the rotating component 300 includes a bearing 310 and a round bar 320. The round bar 320 connects the test component 200 and the bearing 310. The base 100 has a bearing hole, and the bearing 310 is disposed in the bearing hole and rotatably connects the base 100 and the round bar 320. Thus, the rotation of the test component 200 can be achieved through the bearing 310. Specifically, the round bar 320 is connected to the base plate 211 of the first rotating upper seat 210. In this embodiment, the rotating component 300 enables the test component 200 to rotate and be positioned, reducing manual operation steps and further improving testing efficiency.

[0025] In summary, the sensor coil anti-geomagnetic interference test fixture in the above embodiments of this utility model, by rotating the test component through the rotating component, can meet the test requirement of 180° directional difference; on the other hand, it enables the test component to rotate according to a preset angle; furthermore, the cooperation between the baffle and the corner block in the limiting component achieves precise limiting, avoiding reliance on manual adjustment and confirmation of the sensor coil position and direction, thus improving test efficiency. In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0026] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A sensor coil anti-geomagnetic interference test fixture, characterized in that, It includes a base, a test component, and a rotating component connecting the base and the test component. The rotating component is rotatably connected to the base, and the test component is used to mount a sensor. The test fixture also includes a limiting component, which includes two baffles and a corner block disposed on the rotating component. The baffles and the corner block are located on the same plane. The corner block rotates with the rotating component to adjust the test angle of the sensor. The two baffles are disposed at opposite ends of the base and are staggered.

2. The sensor coil anti-geomagnetic interference test fixture according to claim 1, wherein, The test assembly includes a first rotating upper seat, which includes a base plate and a support plate disposed on the base plate; The test assembly also includes a second rotating upper seat and a third rotating upper seat that are detachably connected to the base plate, and the support plate, the second rotating upper seat and the third rotating upper seat are arranged at intervals in sequence.

3. The sensor coil anti-geomagnetic interference test fixture of claim 2, wherein, The test assembly also includes several clip probes. The support plate has several pin holes, and each pin hole contains a clip probe. The clip probe is connected to the pin hole and fixedly connected to the second rotating upper seat. The coil pin of the sensor is connected to the clip probe through the pin hole to achieve quick insertion and removal.

4. The sensor coil anti-geomagnetic interference test fixture of claim 3, wherein, The end of the clip probe away from the support plate protrudes from the second rotating upper seat to provide a test pin.

5. The sensor coil anti-geomagnetic interference test fixture according to claim 3, characterized in that, The support plate is also provided with several positioning holes, which are used to position the sensor.

6. The sensor coil anti-geomagnetic interference test fixture according to claim 2, characterized in that, The third rotating upper seat has a receiving groove on the side away from the second rotating upper seat, and the receiving groove is used to fix the PCB board.

7. The sensor coil anti-geomagnetic interference test fixture according to claim 1, characterized in that, The base is provided with a bearing hole, and the rotating component includes a bearing and a round bar. The bearing is located in the bearing hole and rotatably connects the base and the round bar. The round bar connects the test component and the bearing.

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