Axial telescopic Hall potential module

Abstract

The invention discloses an axial telescopic Hall potential module which comprises a PCB and a telescopic shaft, the telescopic shaft is located on one side of the PCB, a magnet is arranged at the end, right facing the PCB, of the telescopic shaft, and a Hall sensor coaxial with the magnet and the telescopic shaft is arranged on the PCB. Compared with the prior art, the device has the advantages that the telescopic shaft stretches out and draws back in a rotating mode, so that the distance between the magnet and the Hall sensor is changed, and compared with a pressing type driving structure, the device is more stable in operation and higher in control precision; and compared with a structural form that the magnet is laterally close to or far away from the Hall sensor in the circumferential direction, the change of the magnetic flux is more uniform and stable. Meanwhile, the rotating angle of the rotating shaft can be far more than 360 degrees, and the rotating shaft can be conveniently applied to a game steering wheel or other game devices or equipment needing to rotate by more than one circle.

Description

Technical Field

[0001] This invention relates to potential modules, and more particularly to an axially telescopic Hall potential module. Background Technology

[0002] In the current game controller field, buttons using Hall effect potentiometers typically employ a press-type mechanical structure to change the distance between a magnet and a Hall sensor, thereby generating varying amounts of magnetic flux. The Hall sensor then converts this magnetic flux into corresponding electrical signals. However, this press-type structure results in uneven force application during manual control, leading to poor control precision in gaming scenarios and impacting the gaming experience. Currently, some designs on the market utilize a rotating shaft to move the magnet in a circle, thus changing the distance between the magnet and the Hall sensor. For example, the structure disclosed in Chinese Patent Publication No. CN 209495710 U, entitled "Hall Effect Potentiometer," changes the pressing method. While this structure alters the pressing method, its rotating shaft is essentially a free-spinning structure (usually equipped with a bearing), relying primarily on hand force for control without any auxiliary structures. The precision of the rotating shaft during rotation remains uncontrollable, making it inconvenient for game control in certain scenarios. Furthermore, its rotating shaft cannot be raised or lowered, and the magnet can only move within a 360-degree range on the same plane. This makes it unsuitable for applications such as game steering wheels or other devices or functions requiring rotation of more than 360 degrees. Therefore, developing an axially telescopic Hall effect potentiometer module to improve the accuracy of magnet movement has become a problem urgently needing to be solved by those skilled in the art. Summary of the Invention

[0003] The present invention addresses the above-mentioned shortcomings by providing an axially telescopic Hall potential module.

[0004] The above-mentioned objective of the present invention is achieved by the following technical solution: an axial telescopic Hall potential module, characterized in that: it includes a PCB board and a telescopic shaft, the telescopic shaft is located on one side of the PCB board, a magnet is provided at one end of the telescopic shaft facing the PCB board, and a Hall sensor is provided on the PCB board that is coaxially arranged with the magnet and the telescopic shaft.

[0005] Furthermore, the magnet is disposed on the end face or end sidewall of the telescopic shaft.

[0006] Furthermore, the axial telescopic Hall potential module includes a housing with a threaded shaft hole. The telescopic shaft has an external thread and is installed in the threaded shaft hole, thereby enabling the telescopic shaft to achieve stable telescopic extension and retraction through its own thread.

[0007] Furthermore, a reset torsion spring is provided between the telescopic shaft and the outer shell, with one end of the reset torsion spring fixed to the telescopic shaft and the other end fixed to the outer shell.

[0008] Furthermore, the axial telescopic Hall potential module includes a housing with a shaft guide hole. The telescopic shaft passes through the shaft guide hole, and the hole wall of the shaft guide hole is provided with a guide key. The outer wall of the telescopic shaft is provided with a guide groove that mates with the guide key. An external drive shaft is provided at one end of the telescopic shaft. A threaded drive structure is provided between the rear end of the telescopic shaft and the external drive shaft. Thus, the telescopic shaft achieves telescopic extension and retraction through the external drive shaft.

[0009] Furthermore, a return spring is provided between the external drive shaft and the outer casing or external device housing.

[0010] The advantages of this invention compared to existing technologies are as follows: This invention achieves the extension and retraction of the telescopic shaft through rotation, thereby changing the distance between the magnet and the Hall sensor. This results in smoother operation and higher control precision compared to a push-type drive structure. Furthermore, compared to a structure where the magnet moves laterally towards or away from the Hall sensor in the circumferential direction, the change in magnetic flux is more uniform and stable. Simultaneously, the rotation angle of the shaft can far exceed 360 degrees, facilitating its application in game steering wheels or other game devices or equipment that require rotation more than one revolution. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the overall structure of the first embodiment of the present invention.

[0012] Figure 2 This is an exploded structural diagram from one side view of the first embodiment of the present invention.

[0013] Figure 3 This is an exploded structural diagram from another perspective of the first embodiment of the present invention.

[0014] Figure 4 This is a schematic diagram of the internal structure of the first embodiment of the present invention.

[0015] Figure 5 This is a schematic diagram of the overall structure of the second embodiment of the present invention.

[0016] Figure 6 This is an exploded structural diagram from one side view of the second embodiment of the present invention.

[0017] Figure 7 This is an exploded structural diagram from another perspective of the second embodiment of the present invention.

[0018] Figure 8 This is a schematic diagram of the internal structure of the second embodiment of the present invention.

[0019] Figure 9 This is a schematic diagram of the overall structure of the third embodiment of the present invention.

[0020] Figure 10 This is an exploded structural diagram from one side view of the third embodiment of the present invention.

[0021] Figure 11 This is an exploded structural diagram from another perspective of the third embodiment of the present invention.

[0022] Figure 12 This is a schematic diagram of the internal structure of the third embodiment of the present invention.

[0023] Figure 13 This is a schematic diagram of the telescopic shaft and magnet in the fourth embodiment of the present invention. Detailed Implementation

[0024] The invention will now be described in further detail with reference to the accompanying drawings.

[0025] Example 1: As Figures 1 to 4 As shown, an axially telescopic Hall effect potential module includes a housing 1, a PCB board 2, and a telescopic shaft 3. The housing 1 includes a box body 101 and a cover 102. The PCB board 2 is installed in the box body 101. The cover 102 is provided with a threaded shaft hole 103. The telescopic shaft 3 is provided with an external thread 301 and is installed in the threaded shaft hole 103. A reset torsion spring 4 is provided between the telescopic shaft 3 and the housing 1. One end of the reset torsion spring 4 is fixed to the telescopic shaft 3, and the other end is fixed to the housing 1. Thus, the telescopic shaft 3 achieves stable telescopic extension and retraction through its own thread. The telescopic shaft 3 is located on one side of the PCB board 2. A magnet 5 is provided at the end of the telescopic shaft 3 facing the PCB board 2. A Hall sensor 6 is provided on the PCB board 2, which is coaxially arranged with the magnet 5 and the telescopic shaft 3.

[0026] During operation, the telescopic shaft rotates to extend and retract, changing the distance between the magnet and the Hall sensor. The Hall voltage changes with the magnetic field strength; the closer the magnet is to the Hall sensor, the stronger the magnetic field and the higher the voltage, and vice versa. The Hall sensor transmits this voltage signal to the microcontroller on the PCB board, which then outputs corresponding command signals.

[0027] Example 2: As Figures 5 to 8 As shown, an axially telescopic Hall effect potential module includes a housing 1, a PCB board 2, and a telescopic shaft 3. The housing 1 includes a box body 101 and a cover 102. The PCB board 2 is installed in the box body 101. The cover 102 has a shaft guide hole 7. The telescopic shaft 3 passes through the shaft guide hole 7. The wall of the shaft guide hole 7 has a guide key 701. The outer wall of the telescopic shaft 3 has a guide groove 302 that mates with the guide key 701. One end of the telescopic shaft 3 has an external drive shaft 8. A threaded drive structure 9 is provided between the rear end of the telescopic shaft 3 and the external drive shaft 8. The threaded drive structure 9 uses a screw thread hole (e.g., ...). Figures 5 to 8As shown in the figure, the telescopic shaft 3 has a threaded hole 901 at its rear end that engages with the screw 902 of the external drive shaft 8. A return spring (not shown) is provided between the external drive shaft 8 and the outer casing 1 or the external equipment housing (not shown in the figure). Thus, the telescopic shaft 3 achieves stable extension and retraction through the external drive shaft 8. The telescopic shaft 3 is located on one side of the PCB board 2, and a magnet 5 is provided at the end of the telescopic shaft 3 facing the PCB board 2. A Hall sensor 6 is provided on the PCB board 2, which is coaxially arranged with the magnet 5 and the telescopic shaft 3.

[0028] Example 3: As Figures 9 to 12 As shown, an axial telescopic Hall effect potential module includes a housing 1, a PCB board 2, and a telescopic shaft 3. The housing 1 includes a box body 101 and a cover 102. The PCB board 2 is installed in the box body 101. The cover 102 is provided with a shaft guide hole 7. The telescopic shaft 3 passes through the shaft guide hole 7. The hole wall of the shaft guide hole 7 is provided with a guide key 701. The outer wall of the telescopic shaft 3 is provided with a guide groove 302 that cooperates with the guide key 701. An external drive shaft 8 is provided at one end of the telescopic shaft 3. A threaded drive structure 9 is provided between the rear end of the telescopic shaft 3 and the external drive shaft 8. The threaded drive structure 9 adopts a helical push-protrusion engagement, that is, a first threaded slope 903 is provided on the telescopic shaft 3, and a second threaded slope 904 that cooperates with the first threaded slope is provided on the external drive shaft 8. A return spring (not shown) is provided between the external drive shaft 8 and the outer casing 1 or the external device housing (not shown in the figure). Thus, the telescopic shaft 3 achieves stable extension and retraction through the external drive shaft 8. The telescopic shaft 3 is located on one side of the PCB board 2. A magnet 5 is provided at one end of the telescopic shaft 3 facing the PCB board 2. A Hall sensor 6 is provided on the PCB board 2, which is coaxially arranged with the magnet 5 and the telescopic shaft 3.

[0029] In embodiments 2 and 3 of this invention, during operation, the external drive shaft is rotated to drive the telescopic movement, changing the distance between the magnet and the Hall sensor. The Hall voltage changes with the magnetic field strength; the closer the magnet is to the Hall sensor, the stronger the magnetic field and the higher the voltage, and vice versa. The Hall sensor transmits this voltage signal to the microcontroller on the PCB board, and the microcontroller then outputs corresponding command signals based on this signal.

[0030] Examples 1, 2, and 3 all actually use a threaded drive structure, which allows the telescopic shaft to extend and retract smoothly under the guidance of the threaded structure. The threaded structure has both a guiding function and a scale-like function, making its control precision easier to control.

[0031] Example 4: In addition to the magnet 5 being disposed on the end sidewall of the telescopic shaft 3 (e.g. Figure 13 Except for the structure shown, the rest of the structure is the same as in Example 1, Example 2 or Example 3.

[0032] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural or procedural transformations made based on the content of the present invention's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. An axially telescopic Hall effect potential module, characterized in that: It includes a PCB board and a telescopic shaft. The telescopic shaft is located on one side of the PCB board, and a magnet is provided at the end of the telescopic shaft facing the PCB board. A Hall sensor is provided on the PCB board, which is coaxially arranged with the magnet and the telescopic shaft.

2. The axially telescopic Hall effect potential module according to claim 1, characterized in that: The magnet is disposed on the end face or end sidewall of the telescopic shaft.

3. The axially telescopic Hall effect potential module according to claim 1, characterized in that: The axial telescopic Hall potential module includes a housing with a threaded shaft hole. The telescopic shaft has an external thread and is installed in the threaded shaft hole, thereby enabling the telescopic shaft to achieve stable extension and retraction through its own thread.

4. The axially telescopic Hall effect potential module according to claim 3, characterized in that: A reset torsion spring is provided between the telescopic shaft and the outer shell. One end of the reset torsion spring is fixed to the telescopic shaft, and the other end is fixed to the outer shell.

5. The axially telescopic Hall effect potential module according to claim 1, characterized in that: The axial telescopic Hall effect potential module includes a housing with a shaft guide hole. The telescopic shaft passes through the shaft guide hole, and the hole wall of the shaft guide hole is provided with a guide key. The outer wall of the telescopic shaft is provided with a guide groove that mates with the guide key. An external drive shaft is provided at one end of the telescopic shaft. A threaded drive structure is provided between the rear end of the telescopic shaft and the external drive shaft. Thus, the telescopic shaft can extend and retract through the external drive shaft.

6. The axially telescopic Hall effect potential module according to claim 5, characterized in that: A return spring is provided between the external drive shaft and the outer casing or external equipment housing.

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