Non-contact multi-direction input rocker potentiometer

Abstract

The utility model provides a non-contact multi-direction input rocker potentiometer. The non-contact multi-direction input rocker potentiometer comprises a base, a cover shell, a metal piece, a support frame, a magnetic piece, a reset spring, a rocker structure, a non-contact Hall sensor and an FPC (Flexible Printed Circuit) board, the cover shell covers the base to form an assembly space, and the reset spring is arranged in the assembly space and is coaxial with the rocker structure; an avoiding hole for the rocker structure to move is formed in the top of the cover shell; the FPC board is installed at the bottom of the inner cavity of the base, and the non-contact Hall sensor is correspondingly installed on the FPC board; the support frame correspondingly penetrates through the FPC board through a positioning pin and is connected with the base; the upper surface of the supporting frame is coaxially provided with a metal piece containing groove for containing metal pieces, and the metal pieces are correspondingly arranged in the metal piece containing groove. And the magnetic piece is correspondingly arranged at the lower part of the inner cavity of the rocker structure and is coaxial with the non-contact Hall sensor. The rocker can accurately find the gauge midpoint, the resetting accuracy is high, and the pressing hand feeling is good.

Description

Technical Field

[0001] This utility model relates to the field of potentiometer technology, specifically to a non-contact multi-directional input rocker potentiometer. Background Technology

[0002] Chinese Patent Publication No. CN117899448A, published on April 19, 2024, entitled "A Multi-directional Input Device," comprises a housing, an operating lever, a magnetic component, a circuit board, a support base, a reset assembly, a spring, a pressing component, and a magnetic induction chip. The operating lever includes an operating part and a rocking part connected together. The reset assembly includes a pressure plate and a spring. The magnetic induction chip includes a chip body and a sensing part. The centers of the rocking part, the magnetic component, the pressing component, the spring, and the sensing part are all located on the same vertical line. When the operating lever is rocked or pressed to move the magnetic component relative to the sensing part in any direction, the sensing part senses the change in the magnetic force of the magnetic component and outputs a magnetic field change signal. This allows the multi-directional input device to accurately and promptly feedback the direction and amount of movement of the operating lever, thereby improving the user experience. A deficiency in this prior art is the insufficient accuracy of the centering and resetting of the reset assembly, which urgently needs improvement. Utility Model Content

[0003] To address the above problems, this utility model provides a non-contact multi-directional input joystick potentiometer. The joystick can accurately find the center point, has high return accuracy, and has a good pressing feel.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a non-contact multi-directional input rocker potentiometer, comprising a base, a cover, a dowel plate, a support frame, a magnetic component, a return spring, a rocker structure, a non-contact Hall sensor, and an FPC board; the cover is disposed on the base to form an assembly space, the return spring is disposed within the assembly space and is coaxially arranged with the rocker structure; the top of the cover has an clearance hole for the rocker structure to move; the FPC board is installed at the bottom of the inner cavity of the base, and the non-contact Hall sensor is correspondingly installed on the FPC board; the support frame is connected to the base via a positioning pin that passes through the FPC board; the upper surface of the support frame has a dowel plate storage groove coaxially arranged to receive the dowel plate, and the dowel plate is correspondingly disposed in the dowel plate storage groove; the bottom of the support frame has a sensor storage groove coaxially arranged to receive the non-contact Hall sensor; the magnetic component is correspondingly disposed in the lower part of the inner cavity of the rocker structure and is coaxially arranged with the non-contact Hall sensor;

[0005] The rocker arm structure includes a rocker arm and an arc-shaped rocking part. The arc-shaped rocking part is integrally formed on the lower part of the rocker arm. The bottom of the rocker arm forms an extension section, and the magnetic component is correspondingly disposed in the extension section. The bottom of the arc-shaped rocking part is coaxial with the rocker arm to form an umbrella-shaped first receiving groove. An annular elastic washer coaxial with the rocker arm is disposed in the first receiving groove. The annular elastic washer is correspondingly sleeved on the outer side of the extension section. A spring limiting space is formed between the outer side of the support frame and the inner side wall of the base. The return spring is set as a cone shape with a narrow upper end and a wide lower end. The upper part of the return spring extends into the first receiving groove and is correspondingly wrapped around the outer side of the extension section. The top of the return spring abuts against the bottom of the annular elastic washer. The annular elastic washer abuts against the top of the first receiving groove under the elastic force of the return spring. The lower part of the return spring extends into the spring limiting space and is wrapped around the outer side of the support frame.

[0006] Preferably, the number of return springs wound around the extended section is set to more than half a turn.

[0007] Preferably, the number of return springs wound around the outer side of the support frame is set to more than half a turn.

[0008] Preferably, the top of the inner cavity of the cover shell is formed with a first arc-shaped surface that matches the outer side of the arc-shaped rocking part; the arc-shaped rocking part is in close contact with the top of the inner cavity of the cover shell.

[0009] Preferably, the cover shell has a second arcuate surface formed around the position of the clearance hole.

[0010] Preferably, the base has fastening portions on opposite sides, and the outer side of the cover has fastening protrusions at positions corresponding to each of the fastening portions; when in the assembled state, the fastening portions are hooked onto the fastening protrusions.

[0011] Preferably, the protruding section has a magnetic component storage groove with an opening at the lower end to accommodate the magnetic component, and the bottom opening side of the protruding section is covered with an actuating part that cooperates with the dowel piece.

[0012] Preferably, the rocker arm has a magnetic component mounting hole coaxially formed from the top, the magnetic component mounting hole extends to the position of the extended section, and the magnetic component is coaxially fitted at the bottom of the inner cavity of the magnetic component mounting hole.

[0013] Preferably, the cross-section of the reset spring is circular or rectangular.

[0014] Preferably, a first limiting protrusion is provided on the upper surface of the inner cavity of the base at a position corresponding to the bottom free end of the reset spring, and a second limiting protrusion is provided on the inner sidewall of the first receiving groove at a position corresponding to the top free end of the reset spring, and the reset spring is correspondingly limited between the first limiting protrusion and the second limiting protrusion.

[0015] The beneficial effects of this utility model are:

[0016] First, the return spring is set as a cone shape that is narrow at the top and wide at the bottom. The upper part of the return spring extends into the first receiving groove and is correspondingly wrapped around the outer side of the protruding section. The lower part of the return spring extends into the spring limiting space and is wrapped around the outer side of the support frame, thereby enabling the rocker structure to find the center point better and complete the accurate centering action, resulting in high return accuracy.

[0017] Secondly, the bottom of the arc-shaped rocking part is coaxial with the rocker arm to form an umbrella-shaped first receiving groove. An annular elastic washer coaxial with the rocker arm is provided in the first receiving groove. The annular elastic washer is correspondingly sleeved on the outer side of the extended section. The top of the return spring abuts against the bottom of the annular elastic washer. Under the elastic force of the return spring, the annular elastic washer abuts against the top of the first receiving groove. An upward pre-pressure is generated through the annular elastic washer, which assists and limits the return spring to achieve a fast and accurate centering action.

[0018] Third, by setting up a dome, a good tactile feel is ensured when pressing the joystick;

[0019] Fourth, the cover has a second arc-shaped surface around the clearance hole, which can limit the rotation direction of the joystick and thus prevent the joystick from deviating.

[0020] Fifth, the arc-shaped rocking part is in close contact with the top of the inner cavity of the cover, reducing the friction between the arc-shaped rocking part and the cover, thereby improving the service life;

[0021] Sixth, the corresponding limit of the reset spring is set between the first limit protrusion and the second limit protrusion to prevent the reset spring from rotating during use, thereby ensuring the effectiveness of use. Attached Figure Description

[0022] Figure 1 This is an exploded view of the first embodiment of the present invention.

[0023] Figure 2 This is a perspective view of the first embodiment of the present utility model.

[0024] Figure 3 This is a first cross-sectional view of the first embodiment of the present utility model.

[0025] Figure 4This is a second cross-sectional view of the first embodiment of the present invention.

[0026] Figure 5 This is a cross-sectional view of the rocker structure in the second embodiment of this utility model.

[0027] The attached figures are labeled as follows: base 10, non-contact Hall sensor 12, FPC board 11, dowel piece 14, support frame 13, magnetic component 16, return spring 15, annular elastic washer 17, rocker arm 18, cover 19, fastening protrusion 20, fastening part 21, arc-shaped rocking part 22, dowel piece storage slot 23, spring limiting space 24, triggering part 25, positioning pin 26, magnetic component mounting hole 27, protruding section 28, rocker arm structure 31, clearance hole 32, first storage slot 33, first arc-shaped surface 34, second arc-shaped surface 35. Detailed Implementation

[0028] The present invention will be further described in detail below with reference to the embodiments and accompanying drawings, but the implementation of the present invention is not limited thereto.

[0029] The first implementation method, as described below Figure 1-4 As shown: A non-contact multi-directional input rocker potentiometer includes a base 10, a cover 19, a dowel plate 14, a support frame 13, a magnetic component 16, a return spring 15, a rocker structure 31, a non-contact Hall sensor 12, and an FPC board 11. The cover 19 covers the base 10 to form an assembly space. The return spring 15 is disposed within the assembly space and is coaxially arranged with the rocker structure 31. The top of the cover 19 has a clearance hole 32 for the rocker structure 31 to move. The FPC board 11 is installed at the bottom of the inner cavity of the base 10, providing a non-contact... The Hall sensor 12 is mounted on the FPC board 11. The support frame 13 is connected to the base 10 through the FPC board 11 via a positioning pin 26. A slot 23 for receiving a dotted piece 14 is coaxially formed on the upper surface of the support frame 13, and the dotted piece 14 is correspondingly disposed in the slot 23. A sensor storage slot for receiving the non-contact Hall sensor 12 is coaxially formed on the bottom of the support frame 13. A magnetic component 16 is correspondingly disposed in the lower part of the inner cavity of the rocker arm structure 31 and is coaxially arranged with the non-contact Hall sensor 12. In this embodiment, by providing a dotted piece, a good control feel is ensured when the rocker arm is pressed.

[0030] The rocker arm structure 31 includes a rocker arm 18 and an arc-shaped rocking part 22. The arc-shaped rocking part 22 is integrally formed on the lower part of the rocker arm 18. The bottom of the rocker arm 18 forms an extension section 28, and the magnetic component 16 is correspondingly disposed in the extension section 28. The bottom of the arc-shaped rocking part 22 is coaxial with the rocker arm 18 to form an umbrella-shaped first receiving groove 33. An annular elastic washer 17, coaxial with the rocker arm 18, is disposed in the first receiving groove 33. The annular elastic washer 17 is correspondingly sleeved on the outer side of the extension section 28. The outer side of the support frame 13 and the inner side of the base 10 are connected. A spring-limiting space 24 is formed between the side walls. The return spring 15 is tapered, narrow at the top and wide at the bottom. The upper part of the return spring 15 extends into the first receiving groove 33 and is correspondingly wound around the outer side of the protruding section 28. The top of the return spring 15 abuts against the bottom of the annular elastic washer 17, and the annular elastic washer 17 abuts against the top of the first receiving groove 33 under the elastic force of the return spring 15. The lower part of the return spring 15 extends into the spring-limiting space 24 and is wound around the outer side of the support frame 13. The number of return springs 15 wound around the protruding section 28 is set to more than half a turn. The number of return springs 15 wound around the outer side of the support frame 13 is set to more than half a turn. The cross-section of the return spring 15 is set to be circular or rectangular. Through this structural setting, the rocker arm structure can better find the center point and complete the accurate centering action, resulting in high return accuracy. In this embodiment, the rocker arm 18 is shaken or pressed vertically, causing the magnetic component 16 to move relative to the non-contact Hall sensor 12 in any of the X, Y, and Z directions. The non-contact Hall sensor 12 senses the change in magnetic force of the magnetic component 16 and outputs a magnetic field change signal.

[0031] Preferably, the top of the inner cavity of the cover 19 has a first arcuate surface 34 that mates with the outer side of the arcuate rocking part 22; the arcuate rocking part 22 is in close contact with the top of the inner cavity of the cover 19. This structural arrangement reduces the friction between the arcuate rocking part and the cover, thereby improving its service life.

[0032] Preferably, the cover 19 has a second arc-shaped surface 35 formed around the clearance hole 32. This structural arrangement restricts the rotation direction of the joystick, thereby preventing the joystick from deviating from its intended direction.

[0033] Preferably, the base 10 has fastening portions 21 on opposite sides, and the outer side of the cover 19 has fastening protrusions 20 at positions corresponding to each fastening portion 21. When in the assembled state, the fastening portions 21 are hooked onto the fastening protrusions 20. The cooperation between the fastening protrusions 20 and the fastening portions 21 facilitates assembly during production.

[0034] Preferably, the protruding section 28 has a magnetic component storage groove for storing the magnetic component 16 and an opening at the lower end. The bottom opening side of the protruding section 28 is covered with an actuating part 25 that cooperates with the dowel piece 14. With this structural arrangement, the magnetic component 16 can be inserted from the bottom of the protruding section 28 and then sealed and fixed by the actuating part 25, thereby achieving the function of easy assembly and disassembly.

[0035] Preferably, a first limiting protrusion is provided on the upper surface of the inner cavity of the base 10 at a position corresponding to the bottom free end of the return spring 15, and a second limiting protrusion is provided on the inner sidewall of the first receiving groove 33 at a position corresponding to the top free end of the return spring 15. The return spring 15 is correspondingly limited between the first limiting protrusion and the second limiting protrusion. This structural design prevents the return spring from rotating during use, thereby ensuring the effectiveness of the application.

[0036] The second implementation method, as referred to Figure 5 As shown: The rocker arm 18 has a magnetic component mounting hole 27 coaxially formed from the top, and the magnetic component mounting hole 27 extends to the position of the protruding section 28. The magnetic component 16 is coaxially fitted into the bottom of the inner cavity of the magnetic component mounting hole 27. With this structural arrangement, the magnetic component 16 can be installed into the rocker arm 18 from the top, thereby achieving the function of easy assembly.

[0037] The above embodiments only illustrate two implementation methods of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A non-contact multi-directional input rocker potentiometer, comprising a base (10), a cover (19), a dowel plate (14), a support frame (13), a magnetic component (16), a return spring (15), a rocker structure (31), a non-contact Hall sensor (12), and an FPC board (11); the cover (19) covers the base (10) to form an assembly space, the return spring (15) is disposed in the assembly space and is coaxially arranged with the rocker structure (31); the top of the cover (19) is provided with a clearance hole (32) for the rocker structure (31) to move; the FPC board (11) is installed at the bottom of the inner cavity of the base (10), and the non-contact Hall sensor (12) is... The Hall sensor (12) is mounted on the FPC board (11); the support frame (13) is connected to the base (10) through the FPC board (11) via a positioning pin (26); the upper surface of the support frame (13) is coaxially provided with a slot (23) for receiving the slotted piece (14), and the slotted piece (14) is disposed in the slotted piece (23); the bottom of the support frame (13) is coaxially provided with a sensor storage slot for receiving the non-contact Hall sensor (12); the magnetic component (16) is disposed in the lower part of the inner cavity of the rocker structure (31) and is coaxially disposed with the non-contact Hall sensor (12); Its features are, The rocker structure (31) includes a rocker (18) and an arc-shaped rocking part (22). The arc-shaped rocking part (22) is integrally formed on the lower part of the rocker (18). The bottom of the rocker (18) forms an extension section (28), and the magnetic component (16) is correspondingly disposed in the extension section (28). The bottom of the arc-shaped rocking part (22) is coaxial with the rocker (18) to form an umbrella-shaped first receiving groove (33). An annular elastic washer (17) coaxial with the rocker (18) is disposed in the first receiving groove (33). The annular elastic washer (17) is correspondingly sleeved on the outer side of the extension section (28). The outer side of the support frame (13) is connected to the bottom A spring limiting space (24) is formed between the inner sidewalls of the seat (10). The return spring (15) is set as a cone shape with a narrow upper end and a wide lower end. The upper part of the return spring (15) extends into the first receiving groove (33) and is correspondingly wrapped around the outer side of the protruding section (28). The top of the return spring (15) abuts against the bottom of the annular elastic washer (17). The annular elastic washer (17) abuts against the top of the first receiving groove (33) under the elastic force of the return spring (15). The lower part of the return spring (15) extends into the spring limiting space (24) and is wrapped around the outer side of the support frame (13).

2. A non-contact multi-directional input rocker potentiometer according to claim 1, characterized in that, The number of return springs (15) wrapped around the protruding section (28) is set to more than half a turn.

3. A non-contact multi-directional input rocker potentiometer according to claim 1, characterized in that, The number of return springs (15) wrapped around the outer side of the support frame (13) is set to more than half a turn.

4. A non-contact multi-directional input rocker potentiometer according to claim 1, characterized in that, The top of the inner cavity of the cover (19) is formed with a first arc-shaped surface (34) that matches the outer side of the arc-shaped rocking part (22); the arc-shaped rocking part (22) is in close contact with the top of the inner cavity of the cover (19).

5. A non-contact multi-directional input rocker potentiometer according to claim 1, characterized in that, The cover (19) has a second arcuate surface (35) formed around the position of the clearance hole (32).

6. A non-contact multi-directional input rocker potentiometer according to claim 1, characterized in that, The base (10) has fastening parts (21) on its opposite sides, and the outer side of the cover (19) and the position corresponding to each of the fastening parts (21) are formed with fastening protrusions (20); when in the assembled state, the fastening parts (21) are hooked onto the fastening protrusions (20).

7. A non-contact multi-directional input rocker potentiometer according to claim 2, characterized in that, The extended section (28) has a magnetic component storage groove for storing the magnetic component (16) and has an opening at the lower end. The bottom opening side of the extended section (28) is covered with a trigger part (25) that cooperates with the ferrule (14).

8. A non-contact multi-directional input rocker potentiometer according to claim 1, characterized in that, The rocker arm (18) has a magnetic component mounting hole (27) coaxially formed from the top, the magnetic component mounting hole (27) extends to the position of the protruding section (28), and the magnetic component (16) is coaxially fitted at the bottom of the inner cavity of the magnetic component mounting hole (27).

9. A non-contact multi-directional input rocker potentiometer according to claim 1, characterized in that, The cross-section of the reset spring (15) is set to be circular or rectangular.

10. A non-contact multi-directional input rocker potentiometer according to any one of claims 1-9, characterized in that, A first limiting protrusion is provided on the upper surface of the inner cavity of the base (10) at a position corresponding to the bottom free end of the reset spring (15), and a second limiting protrusion is provided on the inner side wall of the first storage groove (33) at a position corresponding to the top free end of the reset spring (15). The reset spring (15) is correspondingly limited between the first limiting protrusion and the second limiting protrusion.

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