A current sensor measurement and positioning structure

Abstract

This utility model provides a current sensor measurement positioning structure, relating to the field of Hall current sensors. It includes an experimental board, with a sensor body positioned at the center of the top of the experimental board. Supporting mechanisms are provided on both sides of the top of the experimental board. Each supporting mechanism includes a bracket fixedly connected to the experimental board, and a positioning mechanism is provided within the inner cavity of the bracket. By setting up the positioning mechanism, the two positioning wheels positioned vertically are horizontally aligned with the center point of the inner hole of the sensor body. The two positioning wheels allow the cable or copper column to be fixed before entering the inner hole of the sensor body. Furthermore, the positioning mechanism on the other side can also fix the cable or copper column passing through the inner hole of the sensor body, thereby fixing the cable or copper column at the center of the inner hole of the sensor body. This ensures that the cable or copper column will not shift from the center of the inner hole of the sensor body, making the measurement more accurate.

Description

Technical Field

[0001] This utility model belongs to the field of Hall current sensors, specifically a current sensor measurement and positioning structure. Background Technology

[0002] A Hall current sensor is a sensor that measures current based on the Hall effect principle. The Hall effect refers to the phenomenon that when a current passes through a semiconductor perpendicular to an external magnetic field, the charge carriers are deflected, and an additional electric field is generated in the direction perpendicular to both the current and the magnetic field, thereby creating a potential difference across the semiconductor. The Hall current sensor utilizes this principle to convert the current to be measured into a voltage signal output through magnetic field coupling, thus achieving non-contact measurement of the current.

[0003] Current sensor testing can evaluate sensor performance. During the experiment, an overcurrent cable or copper pillar is usually passed through the sensor's inner hole. When current passes through the cable or copper pillar, a magnetic field is generated around it, causing the sensor to sense the change in the magnetic field generated by the current. However, the position of the cable or copper pillar in the sensor's inner hole cannot be kept in the center. If the cable or copper pillar cannot be kept in the center position in the sensor's inner hole, it will lead to uneven magnetic field distribution. Different parts of the Hall element will sense different magnetic field strengths, which will cause fluctuations in the output signal and affect the measurement accuracy.

[0004] In summary, this utility model provides a current sensor measurement and positioning structure to solve the above problems. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0006] A current sensor measurement and positioning structure includes an experimental board.

[0007] A sensor body is provided at the center of the top of the experimental board, and support mechanisms are provided on both sides of the top of the experimental board. The support mechanism includes a bracket fixedly connected to the experimental board, and a positioning mechanism is provided in the inner cavity of the bracket.

[0008] The positioning mechanism includes a threaded rod, threaded sleeves threaded to both ends of the surface of the threaded rod, a shaft fixedly connected to one end of the threaded sleeve, and a positioning wheel movably connected to the surface of the shaft via a bearing. The threads at both ends of the surface of the threaded rod are arranged in opposite directions.

[0009] Furthermore, in this invention, the bottom of the threaded rod is movably connected to the bottom of the inner cavity of the bracket via a bearing.

[0010] Furthermore, in this utility model, the surface of the support mechanism is provided with a wire-passing hole, and the two positioning wheels are located in the inner cavity of the wire-passing hole.

[0011] Furthermore, in this utility model, a positioning groove is provided on one side of the inner cavity of the wire hole, and the end of the shaft away from the threaded sleeve extends through the outside of the positioning groove.

[0012] Furthermore, in this utility model, a limiting groove is provided on the other side of the inner cavity of the wire hole, and a limiting slide plate is slidably connected to the inner cavity of the limiting groove. One side of the limiting slide plate is fixedly connected to the shaft.

[0013] Furthermore, in this utility model, a turntable is provided through the top of the bracket, and the bottom of the turntable is fixedly connected to the threaded rod.

[0014] Beneficial effects: This utility model has the following beneficial effects:

[0015] This invention employs a positioning mechanism where two positioning wheels positioned vertically are horizontally aligned with the center point of the sensor body's inner hole. These two positioning wheels secure the cable or copper column before it enters the sensor body's inner hole. Furthermore, the positioning mechanism on the other side also secures the cable or copper column passing through the sensor body's inner hole, thus fixing the cable or copper column at the center of the sensor body's inner hole. This ensures that the cable or copper column remains at the center of the sensor body's inner hole, resulting in more accurate measurements. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the support mechanism structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the positioning mechanism of this utility model;

[0019] Figure 4 This is a utility model Figure 1 Enlarged structural diagram at point A in the middle.

[0020] In the picture:

[0021] 1. Experimental board; 2. Sensor body; 3. Support mechanism; 301. Bracket; 302. Wire hole; 303. Positioning groove; 304. Limiting groove; 305. Limiting slide plate; 4. Positioning mechanism; 401. Threaded rod; 402. Threaded sleeve; 403. Shaft; 404. Positioning wheel; 405. Turntable. Detailed Implementation

[0022] To better understand the technical content of this utility model, specific embodiments are described below in conjunction with the accompanying drawings. Various aspects of this utility model are described in this disclosure with reference to the accompanying drawings, which illustrate numerous illustrative embodiments. The embodiments of this disclosure are not necessarily defined to include all aspects of this utility model. It should be understood that the various concepts and embodiments described above, as well as those described in more detail below, can be implemented in any of many ways, because the concepts and embodiments disclosed in this utility model are not limited to any particular implementation. Furthermore, some aspects of this utility model can be used alone or in any suitable combination with other aspects disclosed in this utility model.

[0023] Example 1

[0024] like Figure 1-4 As shown, this is the first embodiment of the present invention, which provides a current sensor measurement and positioning structure, including an experimental board 1.

[0025] A sensor body 2 is provided at the center of the top of the experimental board 1. Supporting mechanisms 3 are provided on both sides of the top of the experimental board 1. The supporting mechanism 3 includes a bracket 301 fixedly connected to the experimental board 1. A positioning mechanism 4 is provided in the inner cavity of the bracket 301.

[0026] The positioning mechanism 4 includes a threaded rod 401, a threaded sleeve 402 threadedly connected to both ends of the surface of the threaded rod 401, a shaft 403 fixedly connected to one end of the threaded sleeve 402, and a positioning wheel 404 movably connected to the surface of the shaft 403 via a bearing. The threads at both ends of the surface of the threaded rod 401 are arranged in opposite directions.

[0027] like Figure 1-4 As shown, the two positioning wheels 404, positioned vertically, are horizontally aligned with the center point of the inner hole of the sensor body 2. The cable or copper pillar is placed in the groove of the lower positioning wheel 404. When the rotating disc 405 causes the threaded rod 401 to rotate, the two threaded sleeves 402 will move in opposite directions due to the reversed thread arrangement. This causes the shaft 403 and the positioning wheel 404 to move in opposite directions, effectively positioning and fixing the cable or copper pillar through the grooves of the two positioning wheels 404. This ensures that the cable or copper pillar is centered when passing through the inner hole of the sensor body 2, avoiding uneven magnetic field distribution caused by the cable or copper pillar being out of center. This ensures that the magnetic field strength sensed by different parts of the Hall element is consistent, thereby reducing output signal fluctuations and improving the accuracy of current measurement. The bottom of the experimental board 1 can be fixed with bolts to prevent displacement during use.

[0028] Since the positioning wheel 404 is mounted through bearings, the cable or copper column can be directly pulled through the sensor body 2 and then fixed by the two positioning wheels 404 on the other side under the limiting and transmission of the positioning wheel 404. The positioning wheel 404 can rotate flexibly when limiting and transmitting the cable or copper column, which reduces the friction between the cable or copper column and the positioning wheel 404, making it easier to directly pull the cable or copper column through the sensor body 2 and improving the convenience of operation.

[0029] Example 2

[0030] Reference Figure 2 This is the second embodiment of the present invention, which is based on the previous embodiment.

[0031] In this embodiment, the bottom of the threaded rod 401 is movably connected to the bottom of the inner cavity of the bracket 301 via a bearing.

[0032] The surface of the support mechanism 3 has a wire hole 302, and two positioning wheels 404 are located in the inner cavity of the wire hole 302.

[0033] like Figure 2 As shown, the bottom of the threaded rod 401 is movably connected to the bottom of the inner cavity of the bracket 301 through a bearing, which ensures that the threaded rod 401 can rotate stably, reduces friction and shaking during rotation, and allows the threaded sleeve 402 to move smoothly along the threaded rod 401, thereby improving the accuracy and stability of the positioning wheel 404 adjustment. The wire hole 302 provides space for the positioning wheel 404 to facilitate the passage of cables or copper pillars.

[0034] Example 3

[0035] Reference Figure 2-4 This is the third embodiment of the present invention, which is based on the first two embodiments.

[0036] In this embodiment, a positioning groove 303 is provided on one side of the inner cavity of the wire hole 302, and the end of the shaft 403 away from the threaded sleeve 402 extends through to the outside of the positioning groove 303.

[0037] A limiting groove 304 is provided on the other side of the inner cavity of the wire hole 302. A limiting slide plate 305 is slidably connected to the inner cavity of the limiting groove 304. One side of the limiting slide plate 305 is fixedly connected to the shaft 403.

[0038] A turntable 405 is provided through the top of the bracket 301, and the bottom of the turntable 405 is fixedly connected to the threaded rod 401.

[0039] like Figure 2-4As shown, the positioning groove 303 provides guidance for the movement of the shaft 403, ensuring that the shaft 403 can move along a predetermined trajectory when it moves with the threaded sleeve 402. This ensures that the positioning wheel 404 can be accurately adjusted, improving the positioning accuracy. The combined use of the limiting groove 304 and the limiting slide plate 305 restricts the movement range of the shaft 403, preventing excessive offset of the shaft 403 during movement. This ensures the stability and accuracy of the positioning wheel 404 during adjustment, further improving the reliability of the entire measurement and positioning structure.

[0040] In use, the cable or copper column is placed in the groove of the lower positioning wheel 404. When the rotating turntable 405 rotates the threaded rod 401, the two threaded sleeves 402 will move in opposite directions due to the reversed thread setting. This will drive the shaft 403 and the positioning wheel 404 to move in opposite directions, so that the upper and lower positioning wheels 404 can effectively position and fix the cable or copper column through the groove. This ensures that the cable or copper column is centered when passing through the inner hole of the sensor body 2, avoiding the problem of uneven magnetic field distribution caused by the cable or copper column not being centered. This makes the magnetic field intensity sensed by different parts of the Hall element consistent, thereby reducing output signal fluctuations and improving the accuracy of current measurement.

[0041] All standard parts used in this application can be purchased from the market, and can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. The control method is automatic control through a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art and is common knowledge in the field. Since this application is mainly used to protect mechanical devices, the control method and circuit connection will not be explained in detail in this application.

[0042] Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Those skilled in the art to which this invention pertains can make various modifications and refinements without departing from the spirit and scope of the present invention. Therefore, the scope of protection of this invention shall be determined by the claims.

Claims

1. A current sensor measurement positioning structure, characterized by: Including experimental board (1), A sensor body (2) is provided at the center of the top of the experimental board (1), and a support mechanism (3) is provided on both sides of the top of the experimental board (1). The support mechanism (3) includes a bracket (301) fixedly connected to the experimental board (1), and a positioning mechanism (4) is provided in the inner cavity of the bracket (301). The positioning mechanism (4) includes a threaded rod (401), a threaded sleeve (402) threaded to both ends of the surface of the threaded rod (401), a shaft (403) fixedly connected to one end of the threaded sleeve (402), and a positioning wheel (404) movably connected to the surface of the shaft (403) via a bearing. The threads at both ends of the surface of the threaded rod (401) are arranged in opposite directions.

2. The current sensor measurement positioning structure of claim 1, wherein: The bottom of the threaded rod (401) is movably connected to the bottom of the inner cavity of the bracket (301) via a bearing.

3. The current sensor measurement positioning structure of claim 1, wherein: The surface of the support mechanism (3) has a wire hole (302), and the two positioning wheels (404) are located in the inner cavity of the wire hole (302).

4. The current sensor measurement positioning structure of claim 3, wherein: A positioning groove (303) is provided on one side of the inner cavity of the wire hole (302), and the end of the shaft (403) away from the threaded sleeve (402) extends to the outside of the positioning groove (303).

5. The current sensor measurement positioning structure of claim 3, wherein: A limiting groove (304) is provided on the other side of the inner cavity of the wire hole (302). A limiting slide plate (305) is slidably connected to the inner cavity of the limiting groove (304). One side of the limiting slide plate (305) is fixedly connected to the shaft (403).

6. The current sensor measurement positioning structure of claim 1, wherein: A turntable (405) is provided through the top of the bracket (301), and the bottom of the turntable (405) is fixedly connected to the threaded rod (401).

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