Hall current sensor

Abstract

The utility model discloses a Hall current sensor, which comprises a sensor main body, a connecting shaft is vertically fixed at the bottom of the sensor main body, a sensor supporting seat is arranged at the bottom of the connecting shaft, a spring is sleeved on the connecting shaft, and the spring is arranged between the sensor main body and the sensor supporting seat. A bevel gear is fixed to the lower portion of the connecting shaft, and a meshing groove matched with the bevel gear is formed in the middle of the bottom of the sensor supporting base. According to the utility model, when the sensor main body needs to be rotated, the sensor main body needs to be pressed down firstly, so that the bevel gear on the connecting shaft is separated from the bottom of the meshing groove, and when the rotation is completed and the sensor main body is loosened, the spring pushes the connecting shaft to slide upwards, so that the bevel gear enters the meshing groove again, and then the locking is completed. According to the utility model, the angle adjustment of the sensor main body is simpler and more effective.

Description

Technical Field

[0001] The utility model relates to the technical field of sensors, in particular to a Hall current sensor. Background Art

[0002] The Hall current sensor is based on the magnetic balance Hall principle. According to the Hall effect principle, the current IC is passed through the control current end of the Hall element, and a magnetic field with a magnetic induction intensity of B is applied in the normal direction of the Hall element plane. Then, an electric potential VH will be generated perpendicular to the current and magnetic field direction (i.e., between the Hall output ends). It is called the Hall potential, and its magnitude is proportional to the control current I. Hall current sensors are widely used in variable frequency speed regulation devices, inverter devices, UPS power supplies, inverter welding machines, electrolytic plating, CNC machine tools, microcomputer monitoring systems, power grid monitoring systems, and various fields that require isolation and detection of current and voltage. The bottom mounting hole of the current Hall sensor is vertical to the connecting ears and fixing ears on both sides of the sensor. When installing, the connecting ears and fixing ears on both sides of the sensor will block the mounting hole, making installation very inconvenient.

[0003] The existing announcement number is CN219871512U, which is a Hall current sensor, comprising a mounting plate, a mounting frame, a lower shell and an upper shell. The mounting frame is mounted on the top of the mounting plate, and a round hole is provided on the top of the mounting frame. A mounting rod is slidably connected in the round hole, and the lower shell is fixedly connected to the mounting rod. The design that the shell and the mounting plate can be staggered solves the problem of inconvenient installation of the mounting plate. When in use, the locking rod is first released to lock the mounting rod, and then the lower shell is rotated, so that the shell and the mounting plate are staggered. Although the problem that the connecting ears and fixing ears on both sides of the sensor block the mounting hole can be avoided, it is still inconvenient to operate. Utility Model Content

[0004] The utility model aims to provide a Hall current sensor to solve the problems in the prior art.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a Hall current sensor, comprising a sensor body, a connecting shaft vertically fixed to the bottom of the sensor body, a sensor support seat installed at the bottom of the connecting shaft, a spring sleeved on the connecting shaft, the spring is located between the sensor body and the sensor support seat, a bevel gear is fixed to the lower part of the connecting shaft, and a meshing groove matching the bevel gear is opened in the middle position of the bottom of the sensor support seat.

[0006] Preferably, a protruding spring positioning sleeve is fixedly provided at the middle position of the top of the sensor support seat, and the outer diameter of the spring positioning sleeve is equal to the inner diameter of the spring.

[0007] Preferably, the upper portion of the connecting shaft is provided with a thread, the bottom of the sensor body is provided with a threaded assembly groove matching the connecting shaft, the lower surface of the sensor body is provided with a locking groove connected to the threaded assembly groove, and a connecting shaft locking screw is installed in the locking groove.

[0008] Preferably, the sensor support seat is composed of a support seat body and support legs, the support seat body is in a truncated cone shape, and three support legs are provided and fixed on the support seat body at equal intervals.

[0009] Compared with the prior art, the utility model has the following beneficial effects: the utility model fixes the sensor body by engaging the meshing groove with the bevel gear on the connecting shaft, thereby preventing the sensor body from rotating at will; at the same time, the connecting shaft and the sensor support seat are plug-in connected, the connecting shaft can slide up and down, and a spring is sleeved on the connecting shaft to prevent the connecting shaft from sliding up and down at will; therefore, when the sensor body needs to be rotated, the sensor body needs to be pressed down first to disengage the bevel gear on the connecting shaft from the bottom of the meshing groove; when the rotation is completed and the sensor body is released, the spring pushes the connecting shaft to slide upward, and the bevel gear re-enters the meshing groove, thereby completing the locking; in summary, the angle adjustment of the sensor body of the utility model is simpler and more effective;

[0010] A protruding spring positioning sleeve is fixedly provided at the middle position of the top of the sensor support seat, and the spring can be fixed by the spring positioning sleeve, so that the expansion and contraction of the spring is more stable;

[0011] The connecting shaft and the sensor body are threadedly connected, and the connecting shaft locking screw on the sensor body can fix the connected connecting shaft, making the assembly of the connecting shaft and the sensor body simpler and not easy to loosen;

[0012] The sensor support seat is composed of a support seat body and support legs. The support legs can make the support seat body suspended in the air, thereby providing space for the downward movement of the connecting shaft. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 It is a structural schematic diagram of the sensor support seat of the utility model;

[0016] Figure 3 It is a structural schematic diagram of the sensor body and the connecting shaft of the utility model.

[0017] In the figure: 1. sensor body; 2. connecting shaft; 3. spring; 4. sensor support seat; 5. support seat body; 6. engagement groove; 7. support leg; 8. spring positioning sleeve; 9. thread; 10. bevel gear; 11. locking groove; 12. connecting shaft locking screw. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the utility model. Therefore, the following detailed description of the embodiments of the utility model provided in the drawings is not intended to limit the scope of the utility model for which protection is sought, but merely represents the selected embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the utility model.

[0019] See also Figure 1-3 In an embodiment of the utility model, a Hall current sensor includes a sensor body 1, a connecting shaft 2 is vertically fixed at the bottom of the sensor body 1, a sensor support seat 4 is installed at the bottom of the connecting shaft 2, a spring 3 is sleeved on the connecting shaft 2, and the spring 3 is located between the sensor body 1 and the sensor support seat 4. A bevel gear 10 is fixed to the lower part of the connecting shaft 2, and a meshing groove 6 that cooperates with the bevel gear 10 is opened in the middle position of the bottom of the sensor support seat 4.

[0020] A protruding spring positioning sleeve 8 is fixedly provided at the middle position of the top of the sensor support seat 4 , and the outer diameter of the spring positioning sleeve 8 is equal to the inner diameter of the spring 3 .

[0021] A thread 9 is provided on the upper part of the connecting shaft 2, a threaded assembly groove matching the connecting shaft 2 is provided at the bottom of the sensor body 1, a locking groove 11 connected to the threaded assembly groove is provided on the lower surface of the sensor body 1, and a connecting shaft locking screw 12 is installed in the locking groove 11.

[0022] The sensor support base 4 is composed of a support base body 5 and support legs 7. The support base body 5 is in a truncated cone shape. Three support legs 7 are provided and fixed on the support base body 5 at equal intervals.

[0023] The working principle of the utility model is as follows: the utility model fixes the sensor body 1 by engaging the bevel gear 10 on the connecting shaft 2 with the meshing groove 6, thereby preventing the sensor body 1 from rotating at will. At the same time, the connecting shaft 2 and the sensor support seat 4 are plug-connected, and the connecting shaft 2 can slide up and down, and a spring 3 is sleeved on the connecting shaft 2 to prevent the connecting shaft 2 from sliding up and down at will. Therefore, when the sensor body 1 needs to be rotated, it is necessary to press down the sensor body 1 first to disengage the bevel gear 10 on the connecting shaft 2 from the bottom of the meshing groove 6. When the rotation is completed and the sensor body 1 is released, the spring 3 pushes the connecting shaft 2 to slide upward, and the bevel gear 10 re-enters the meshing groove 6, thereby completing the locking. In summary, the angle adjustment of the sensor body 1 of the utility model is simpler and more effective.

[0024] A protruding spring positioning sleeve 8 is fixedly provided at the middle position of the top of the sensor support seat 4, and the spring 3 can be fixed by the spring positioning sleeve 8, so that the expansion and contraction of the spring 3 is more stable;

[0025] The connecting shaft 2 is threadedly connected to the sensor body 1, and the connecting shaft locking screw 12 on the sensor body 1 can fix the connected connecting shaft 2, making the assembly of the connecting shaft 2 and the sensor body 1 simpler and not easy to loosen;

[0026] The sensor support seat 4 is composed of a support seat body 5 and support legs 7. The support legs 7 can make the support seat body 5 suspended in the air, thereby providing space for the connection shaft 2 to move downward.

[0027] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A Hall current sensor, comprising a sensor body (1), Features: A connecting shaft (2) is vertically fixed at the bottom of the sensor body (1), a sensor support seat (4) is installed at the bottom of the connecting shaft (2), a spring (3) is sleeved on the connecting shaft (2), and the spring (3) is located between the sensor body (1) and the sensor support seat (4), a bevel gear (10) is fixed at the lower part of the connecting shaft (2), and a meshing groove (6) that cooperates with the bevel gear (10) is opened at the middle position of the bottom of the sensor support seat (4).

2. A Hall current sensor according to claim 1, Features: A protruding spring positioning sleeve (8) is fixedly arranged at the middle position of the top of the sensor support seat (4), and the outer diameter of the spring positioning sleeve (8) is equal to the inner diameter of the spring (3).

3. A Hall current sensor according to claim 1, Features: The upper portion of the connecting shaft (2) is provided with a thread (9), the bottom of the sensor body (1) is provided with a threaded assembly groove matched with the connecting shaft (2), the lower surface of the sensor body (1) is provided with a locking groove (11) connected with the threaded assembly groove, and a connecting shaft locking screw (12) is installed in the locking groove (11).

4. A Hall current sensor according to claim 1, Features: The sensor support seat (4) is composed of a support seat body (5) and support legs (7); the support seat body (5) is in a truncated cone shape; three support legs (7) are provided and fixed on the support seat body (5) at equal intervals.

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