A hall effect sensor with self-reset

Abstract

The utility model discloses a kind of hall formula sensors with self-resetting, belong to sensor technical field, including the shell of hall formula angle sensor, rotating structure and hall induction structure, the hall induction structure and the rotating structure are all arranged in the shell, reset spring is arranged in the shell, the shell includes upper shell and lower shell, the upper shell is connected on the lower shell, the hall induction structure is arranged on the lower shell, the rotating structure is arranged on the upper shell, one end of the rotating structure extends to the outside of the upper shell, one end of the reset spring is connected on the lower shell, the other end of the reset spring is respectively connected on the upper shell by passing through the hall induction structure and the rotating structure, the hall induction structure is fixedly connected on the reset spring, the rotating structure is fixedly connected on the spring, the utility model has the advantage that hall formula angle sensor can be automatically reset.

Description

Technical Field

[0001] This utility model relates to the field of sensor technology, specifically a Hall effect sensor with self-resetting capability. Background Technology

[0002] An angle sensor is a device used to detect angles, converting the rotation angle or change in angle of an object into an electrical signal or other form of output signal. Angle sensors can be divided into Hall effect angle sensors and magnetoresistive angle sensors. A Hall effect angle sensor is a sensor based on the Hall effect principle. Its working principle is that when the magnetic field changes, the Hall element generates a voltage change, thereby measuring the change in angle. Hall effect angle sensors are widely used in industrial automation, automotive electronic control systems, precision instruments, and other fields.

[0003] A Hall effect angle sensor mainly consists of a housing, a Hall sensing structure, and a rotating structure. When the rotating structure on the angle sensor rotates and the angle changes, the Hall sensing structure senses the change in magnetic field, and the Hall element in the Hall sensing structure generates a voltage change, thereby measuring the change in angle.

[0004] Regarding the above technical conditions, there are still defects such as the Hall effect angle sensor lacking a reset structure and the rotating structure not being able to automatically reset after each rotation.

[0005] Based on this, this utility model designs a Hall effect sensor with self-resetting capability to solve the above problems. Utility Model Content

[0006] The purpose of this invention is to provide a Hall effect sensor with self-resetting capability to solve the aforementioned technical problems.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a Hall-effect sensor with self-resetting capability, comprising a housing of a Hall-effect angle sensor, a rotating structure, and a Hall-effect sensing structure. Both the Hall-effect sensing structure and the rotating structure are disposed within the housing. A reset spring is disposed within the housing. The housing includes an upper shell and a lower shell. The upper shell is connected to the lower shell. The Hall-effect sensing structure is disposed on the lower shell, and the rotating structure is disposed on the upper shell. One end of the rotating structure extends outside the upper shell. One end of the reset spring is connected to the lower shell, and the other end of the reset spring passes through both the Hall-effect sensing structure and the rotating structure and is connected to the upper shell. The Hall-effect sensing structure is fixedly connected to the reset spring, and the rotating structure is fixedly connected to the spring.

[0008] Preferably, a limiting groove is formed on the upper shell, and a limiting plate is connected to one end of the rotating structure extending outside the upper shell, with the limiting plate located in the limiting groove.

[0009] Preferably, a hook is fixedly connected to the reset spring, and two hooks are provided on the reset spring, with the two hooks respectively located at both ends of the reset spring. A fixing rod is fixedly connected to the upper shell, with one hook hooked onto the fixing rod and the other hook fixedly connected to the Hall sensor structure.

[0010] Preferably, the Hall sensing structure includes a circuit board, a Hall element, and a connecting wire. The circuit board is disposed on the lower housing, the Hall element is disposed on the circuit board and is located below the rotating structure, and the connecting wire is connected to the circuit board, with one end of the connecting wire extending outside the housing.

[0011] Preferably, the outer surface of the housing is coated with silicone sealant.

[0012] In summary, this application has the following beneficial technical effects: When in use, an external force is applied to the rotating structure, causing the rotating structure to rotate and the limiting plate to rotate in the limiting groove. The return spring undergoes elastic deformation, and the elastic deformation of the return spring is greatest when the limiting plate is located at the rightmost side of the limiting groove. When the external force applied to the rotating structure disappears, the return spring rebounds and returns to its original shape. The rotating structure is reset under the action of the return spring, and the limiting plate is located at the leftmost side of the limiting groove, thus achieving the effect of automatically resetting the Hall effect angle sensor. Attached Figure Description

[0013] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the Hall effect angle sensor in this embodiment;

[0015] Figure 2 This is a top view schematic diagram of the Hall effect angle sensor in this embodiment;

[0016] Figure 3 This is a schematic diagram of the mounting structure of the Hall effect angle sensor in this embodiment;

[0017] Figure 4 This is a schematic diagram of the internal structure of the Hall effect angle sensor in this embodiment;

[0018] Figure 5 This is a side view of the internal structure of the Hall effect angle sensor in this embodiment.

[0019] The attached diagram lists the components represented by each number as follows:

[0020] 1. Upper shell; 2. Rotating structure; 3. Limiting groove; 4. Limiting plate; 5. Lower shell; 6. Connecting wire; 7. Reset spring; 8. Circuit board; 9. Hall element; 10. Hook. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0022] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.

[0023] A Hall effect sensor with self-resetting capability includes a housing of a Hall effect angle sensor, a rotating structure 2, and a Hall effect sensing structure. Both the Hall effect sensing structure and the rotating structure 2 are disposed within the housing, and a reset spring 7 is disposed within the housing. The housing includes an upper shell 1 and a lower shell 5, with the upper shell 1 connected to the lower shell 5. The Hall effect sensing structure is disposed on the lower shell 5, and the rotating structure 2 is disposed on the upper shell 1, with one end of the rotating structure 2 extending outside the upper shell 1.

[0024] One end of the return spring 7 is connected to the lower shell 5, and the other end of the return spring 7 passes through the Hall sensor structure and the rotating structure 2 respectively and is connected to the upper shell 1. The Hall sensor structure is fixedly connected to the return spring 7, and the rotating structure 2 is fixedly connected to the return spring 7. A limit groove 3 is formed on the upper shell 1, and one end of the rotating structure 2 extending outside the upper shell 1 is connected to a limit plate 4, which is located in the limit groove 3.

[0025] In use, an external force is applied to the rotating structure 2, causing it to rotate. The Hall effect sensor detects the change in the magnetic field, which in turn causes a change in voltage, thus allowing the measurement of the object's rotation angle. Because a return spring 7 is installed in the casing, and the rotating structure 2 and the Hall effect sensor are fixedly connected to the return spring 7, the return spring 7 elastically deforms as the rotating structure 2 rotates. When the applied external force disappears, the return spring 7 springs back to its original shape, and the rotating structure 2 is reset under the action of the return spring 7.

[0026] When the return spring 7 does not undergo elastic deformation, the limiting plate 4 is at the leftmost position of the limiting groove 3, and the rotating structure 2 is in its initial position. When the limiting plate 4 is at the rightmost position of the limiting groove 3, the rotation angle of the rotating structure 2 is at its maximum, and the elastic deformation of the return spring 7 is at its maximum. The limiting groove 3 and the limiting plate 4 limit the rotation angle of the rotating structure 2, preventing the return spring 7 from undergoing irreversible elastic deformation, which would affect the return spring 7's effect on the rotation structure 2.

[0027] A hook 10 is fixedly connected to the return spring 7. Two hooks 10 are provided on the return spring 7, one at each end. A fixing rod is fixedly connected to the upper shell 1. One hook 10 is hooked onto the fixing rod, and the other hook 10 is fixedly connected to the Hall effect sensor structure. Through the hooks 10 and the fixing rod, the upper shell 1 can be removed from the lower shell 5, facilitating the inspection and maintenance of the components inside the shell.

[0028] The Hall effect sensing structure includes a circuit board 8, a Hall element 9, and a connecting line 6. The circuit board 8 is detachably fixed to the lower housing 5. The Hall element 9 is disposed on the circuit board 8 and is located below the rotating structure 2. The connecting line 6 is connected to the circuit board 8, and one end of the connecting line 6 extends outside the housing.

[0029] Connecting wire 6 provides power to circuit board 8, ensuring its normal operation. When rotating structure 2 rotates, the magnetic field change on rotating structure 2 is converted into a voltage change on Hall element 9, thus achieving angle measurement. The outer surface of the housing is coated with silicone sealant, which enables the housing to meet IP67 protection standards, making it suitable for harsh environments such as cold storage and extending the housing's service life.

[0030] The implementation principle of this embodiment is as follows: When in use, an external force is applied to the rotating structure 2, the rotating structure 2 rotates, the limiting plate 4 rotates in the limiting groove 3, and the reset spring 7 undergoes elastic deformation. When the limiting plate 4 is located at the rightmost side of the limiting groove 3, the elastic deformation of the reset spring 7 is the largest. When the external force applied to the rotating structure 2 disappears, the reset spring 7 rebounds and returns to its original shape. The rotating structure 2 is reset under the action of the reset spring 7, and the limiting plate 4 is located at the leftmost side of the limiting groove 3, thus achieving the effect of automatically resetting the Hall angle sensor.

[0031] In the description of this utility model, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "side", "top", "inner", "front", "center", "both ends", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They 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. Therefore, they should not be construed as limitations on this utility model.

[0032] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A Hall-effect sensor with self-resetting capability, comprising a housing of a Hall-effect angle sensor, a rotation structure (2), and a Hall-effect sensing structure, characterized in that: Both the Hall sensing structure and the rotating structure (2) are disposed in the outer shell. A return spring (7) is disposed in the outer shell. The outer shell includes an upper shell (1) and a lower shell (5). The upper shell (1) is connected to the lower shell (5). The Hall sensing structure is disposed on the lower shell (5). The rotating structure (2) is disposed on the upper shell (1). One end of the rotating structure (2) extends outside the upper shell (1). One end of the return spring (7) is connected to the lower shell (5). The other end of the return spring (7) passes through the Hall sensing structure and the rotating structure (2) and is connected to the upper shell (1). The Hall sensing structure is fixedly connected to the return spring (7). The rotating structure (2) is fixedly connected to the spring.

2. A Hall effect sensor with self-resetting capability according to claim 1, characterized in that: A limiting groove (3) is provided on the upper shell (1), and the end of the rotating structure (2) extending outside the upper shell (1) is connected to a limiting plate (4), which is located in the limiting groove (3).

3. A Hall effect sensor with self-resetting capability according to claim 1, characterized in that: A hook (10) is fixedly connected to the reset spring (7). Two hooks (10) are provided on the reset spring (7). The two hooks (10) are respectively located at both ends of the reset spring (7). A fixing rod is fixedly connected to the upper shell (1). One hook (10) is hooked on the fixing rod, and the other hook (10) is fixedly connected to the Hall sensing structure.

4. A Hall effect sensor with self-resetting capability according to claim 1, characterized in that: The Hall sensing structure includes a circuit board (8), a Hall element (9), and a connecting line (6). The circuit board (8) is disposed on the lower shell (5), the Hall element (9) is disposed on the circuit board (8), the Hall element (9) is below the rotating structure (2), and the connecting line (6) is connected to the circuit board (8). One end of the connecting line (6) extends outside the outer shell.

5. A Hall effect sensor with self-resetting capability according to claim 1, characterized in that: The outer surface of the housing is coated with silicone sealant.

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