High-precision Hall magnetic current sensor and mounting bracket

Abstract

The utility model belongs to the field of sensors, particularly relates to a high-precision Hall magnetic current sensor and a mounting bracket, and aims to solve the problems that the position of the conventional sensor is not easy to adjust during mounting, and the measurement precision and the stability of the sensor are influenced due to the fact that the sensor is possibly interfered by external factors such as vibration and impact in a complicated working environment. According to the technical scheme, the sensor comprises a sensor shell, a magnetic core, a Hall element and a circuit board are installed in the sensor shell, and the Hall element is arranged at the position of an air gap of the magnetic core and used for sensing magnetic field changes generated by current. Through the cooperation of the bidirectional screw and the threaded block, the rapid installation of the sensor is realized, the sensor is not easy to loosen and fall off, and meanwhile, through the arrangement of the sliding frame and the gear ring, the stable fixation of the sensor at different installation angles is realized, so that the installation and debugging processes of the sensor are more convenient and flexible.

Description

Technical Field

[0001] The utility model relates to the technical field of sensors, in particular to a high-precision Hall magnetic current sensor and a mounting bracket. Background Art

[0002] With the continuous development of electronic technology, current sensors are increasingly used in industrial automation, power monitoring, automotive electronics and other fields. Hall current sensors have become an important means of current measurement due to their advantages such as non-contact measurement, good linearity and high stability.

[0003] Existing high-precision Hall effect magnetic current sensors still have some problems during installation and debugging. For example, due to differences in the sensor housing and the installation environment, the sensor position may be difficult to adjust during installation. At the same time, in complex working environments, the sensor may be disturbed by external factors such as vibration and impact, affecting its measurement accuracy and stability.

[0004] In response to the above problems, this utility model document proposes a high-precision Hall magnetic current sensor and a mounting bracket. Utility Model Content

[0005] The purpose of the utility model is to solve the shortcomings of the prior art that the position of the sensor is difficult to adjust during installation. At the same time, in a complex working environment, the sensor may be disturbed by external factors such as vibration and impact, which affects its measurement accuracy and stability. A high-precision Hall magnetic current sensor and mounting bracket are proposed.

[0006] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0007] A high-precision Hall magnetic current sensor includes a sensor housing, wherein a magnetic core, a Hall element and a circuit board are respectively installed inside the sensor housing. The Hall element is placed in the air gap of the magnetic core and is used to sense the magnetic field changes generated by the current.

[0008] A mounting bracket for installing a high-precision Hall magnetic current sensor, comprising: a mounting box, the mounting box being located at the bottom of the sensor housing, the interior of the mounting box being rotatably connected to a bidirectional screw, the circumference of the bidirectional screw being threadedly connected to two threaded blocks, the upper surfaces of the two threaded blocks being fixedly connected to mounting posts, the two mounting posts being located on either side of the sensor housing, the circumference of the mounting posts being threadedly connected to nuts, the nuts being located above the sensor housing, and a fixing plate being provided at the bottom of the mounting box.

[0009] In one possible design, a fixing frame is fixedly connected to one side of the fixing plate, a connecting column is fixedly connected to the bottom of the installation box, the fixing frame is rotatably connected to the connecting column, and a sliding frame is slidably connected to one side of the fixing plate, and the sliding frame is located on the circumferential outer wall of the connecting column.

[0010] In one possible design, a first gear ring is fixedly connected to one side of the sliding frame, a second gear ring is fixedly connected to the circumference of the connecting column, a threaded ring is threadedly connected to the circumference of the connecting column, the threaded ring is rotatably connected to the sliding frame, and the first gear ring and the second gear ring are meshed.

[0011] In a possible design, one end of the bidirectional screw is fixedly connected to a worm gear, one side of the mounting box is rotatably connected to a worm gear, and the worm gear and the worm gear are meshed.

[0012] In a possible design, a shock-absorbing plate is fixedly connected between the sensor housing and the mounting box.

[0013] In this application, the high-precision Hall effect magnetic current sensor generates a magnetic field around the conductor when current passes through it. This magnetic field acts on the magnetic core, which in turn generates a magnetic field change at the air gap of the magnetic core. The Hall effect element is located at the air gap and can sense this magnetic field change and convert it into an electrical signal. The circuit board receives and processes these electrical signals and ultimately outputs a voltage or current signal that is proportional to the current.

[0014] When installing a high-precision Hall effect magnetic current sensor, the worm is rotated to drive the worm wheel and the bidirectional screw, thereby causing the two threaded blocks to move along the direction of the bidirectional screw. Since the mounting post is fixedly connected to the threaded block, the mounting post can be used to install and fix sensor housings of different models. The mounting post is fixed to the top of the sensor housing with a nut to ensure that the sensor is firmly installed. At the same time, the shock-absorbing plate can absorb and reduce vibration from the installation environment, protecting the sensor from damage.

[0015] By rotating the fixing plate and combining the meshing action of the first gear ring and the second gear ring, the angle between the mounting box and the fixing plate can be adjusted, thereby achieving stable fixation of the sensor at different installation angles.

[0016] Beneficial effects:

[0017] In the utility model, the high-precision Hall magnetic current sensor and mounting bracket improve the sensor's sensitivity to magnetic field changes and measurement accuracy, and improve the sensor's stability and reliability by optimizing the magnetic core structure and the arrangement of the Hall elements.

[0018] In the present invention, the high-precision Hall magnetic current sensor and mounting bracket, through the cooperation of the bidirectional screw and the threaded block, realize the rapid installation of the sensor, which is not easy to loosen or fall off. At the same time, through the setting of the sliding frame and the gear ring, the sensor is stably fixed at different installation angles, making the installation and debugging process of the sensor more convenient and flexible. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the main structure of a high-precision Hall magnetic current sensor and a mounting bracket proposed in the utility model;

[0020] Figure 2 This is a schematic diagram of the cross-sectional structure of a high-precision Hall magnetic current sensor proposed in the utility model;

[0021] Figure 3 This is a schematic diagram of the exploded structure of a high-precision Hall magnetic current sensor and a mounting bracket proposed in the utility model;

[0022] Figure 4 This is a schematic diagram of the connection relationship between the fixing plate and the connecting column of a high-precision Hall magnetic current sensor and the mounting bracket proposed by the utility model;

[0023] Figure 5 This is a schematic diagram of the main cross-sectional structure of a mounting bracket proposed by the utility model.

[0024] In the figure: 1. Sensor housing; 2. Mounting box; 3. Magnetic core; 4. Hall element; 5. Circuit board; 6. Shock-absorbing plate; 7. Mounting column; 8. Fixing plate; 9. Fixing frame; 10. Sliding frame; 11. First gear ring; 12. Connecting column; 13. Threaded ring; 14. Second gear ring; 15. Nut; 16. Bidirectional screw; 17. Threaded block; 18. Worm gear; 19. Worm. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0026] Example 1

[0027] Reference Figure 1-Figure 5 A high-precision Hall effect magnetic current sensor includes: a sensor housing 1 (made of non-magnetic material, such as aluminum alloy), a magnetic core 3 (made of a material with high magnetic permeability, such as ferrite), a Hall effect element 4 (a high-precision Hall effect sensor chip), a circuit board 5 (including a signal processing circuit and a power management circuit), and necessary connecting wires and fixing screws;

[0028] Fix the magnetic core 3 in the inner center position of the sensor housing 1, ensuring that the air gap (i.e., the non-magnetic part) of the magnetic core 3 is clear and unobstructed. Place the Hall element 4 precisely in the air gap of the magnetic core 3 and fix it with glue to ensure that its position is stable and aligned with the air gap. Install the circuit board 5 inside the sensor housing 1, ensuring that the signal input end on the circuit board 5 is correctly connected to the output end of the Hall element 4. Use sealing material (such as silicone) to seal the sensor housing 1 to prevent the external environment from interfering with the internal components.

[0029] Reference Figure 1-Figure 5 A mounting bracket includes: a mounting box 2, a bidirectional screw 16, a threaded block 17, a mounting column 7, a nut 15, a fixing plate 8, a fixing frame 9, a sliding frame 10, a first gear ring 11, a second gear ring 14, a threaded ring 13, a worm gear 18, a worm 19, and a shock absorbing plate 6;

[0030] Install a bidirectional screw 16 inside the mounting box 2, ensuring that its two ends are fixed to the side walls of the mounting box 2 through bearings and can rotate freely. Screw two threaded blocks 17 into the threads on both sides of the bidirectional screw 16 respectively, and install a mounting post 7 on the upper surface of each threaded block 17 so that the mounting post 7 can move horizontally with the movement of the threaded block 17;

[0031] A fixing plate 8 is provided at the bottom of the mounting box 2, and the fixing plate 8 is connected to the mounting box 2 by a connecting column 12, while ensuring that the fixing plate 8 can rotate relative to the connecting column 12. A sliding frame 10 is installed on the fixing plate 8, and a first gear ring 11 is fixed on one side of the sliding frame 10. At the same time, a second gear ring 14 is fixed on the circumference of the connecting column 12, and the sliding frame 10 is connected to the connecting column 12 by a threaded ring 13, so that the first gear ring 11 is meshed with the second gear ring 14.

[0032] Example 2

[0033] refer to Figure 1-Figure 5 , improved on the basis of Example 1:

[0034] A worm 19 is installed on one side of the mounting box 2, and ensures that it engages with the worm wheel 18 fixed to one end of the bidirectional screw 16, so that the rotation of the bidirectional screw 16 can be adjusted by rotating the worm 19. A shock-absorbing plate 6 is installed between the sensor housing 1 and the mounting box 2 to reduce the impact of vibration on the sensor.

[0035] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A mounting bracket for mounting a high-precision Hall magnetic current sensor, the high-precision Hall magnetic current sensor comprising a sensor housing (1), a magnetic core (3), a Hall element (4) and a circuit board (5) being mounted inside the sensor housing (1), the Hall element (4) being placed in an air gap of the magnetic core (3) for sensing changes in a magnetic field generated by a current, and characterized in that: The bracket includes: The mounting box (2) is located at the bottom of the sensor housing (1). A bidirectional screw (16) is rotatably connected inside the mounting box (2). The circumference of the bidirectional screw (16) is threadedly connected to two threaded blocks (17). The upper surfaces of the two threaded blocks (17) are respectively fixedly connected to mounting posts (7). The two mounting posts (7) are respectively located on both sides of the sensor housing (1). The circumference of the mounting posts (7) is respectively threadedly connected to nuts (15). The nuts (15) are located above the sensor housing (1). A fixing plate (8) is provided at the bottom of the mounting box (2).

2. The mounting bracket according to claim 1, wherein: A fixing frame (9) is fixedly connected to one side of the fixing plate (8), a connecting column (12) is fixedly connected to the bottom of the installation box (2), the fixing frame (9) is rotatably connected to the connecting column (12), and a sliding frame (10) is slidably connected to one side of the fixing plate (8), and the sliding frame (10) is located on the circumferential outer wall of the connecting column (12).

3. The mounting bracket according to claim 2, wherein: A first gear ring (11) is fixedly connected to one side of the sliding frame (10), a second gear ring (14) is fixedly connected to the circumference of the connecting column (12), a threaded ring (13) is threadedly connected to the circumference of the connecting column (12), the threaded ring (13) is rotatably connected to the sliding frame (10), and the first gear ring (11) and the second gear ring (14) are meshed.

4. The mounting bracket according to claim 3, wherein: One end of the bidirectional screw (16) is fixedly connected to a worm gear (18), and one side of the installation box (2) is rotatably connected to a worm gear (19), and the worm gear (18) and the worm gear (19) are meshed.

5. The mounting bracket according to claim 3, wherein: A shock-absorbing plate (6) is fixedly connected between the sensor housing (1) and the mounting box (2).

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