Non-contact multi-direction input rocker potentiometer

Abstract

The invention provides a non-contact type multi-direction input rocker potentiometer. The non-contact type multi-direction input rocker potentiometer comprises a base, a cover shell, a metal piece, a supporting frame, a magnetic piece, a reset spring, a rocker structure, a non-contact type Hall sensor and an FPC 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. A sensor accommodating groove for accommodating the non-contact Hall sensor is coaxially formed in the bottom of the support frame; 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] The present invention relates to the technical field of potentiometers, and in particular to a non-contact multi-directional input rocker potentiometer. Background Art

[0002] The Chinese patent authorization announcement number is CN117899448A, and the authorization announcement date is April 19, 2024. The invention name is a multi-directional input device, which includes a housing, an operating rod, a magnetic part, a circuit board, a support base, a reset assembly, a spring, a pressing part, and a magnetic sensing chip, wherein the operating rod includes an operating part and a shaking part connected to each other, the reset assembly includes a pressure plate and a spring, and the magnetic sensing chip includes a chip body and a sensing part. The centers of the shaking part, the magnetic part, the pressing part, the spring, and the sensing part are all located on the same vertical line, and when the operating rod is shaken or pressed to drive the magnetic part to move in any direction relative to the sensing part, the sensing part senses the magnetic force change of the magnetic part and outputs a magnetic field change signal, so that the multi-directional input device can accurately and timely feedback the direction and amount of movement of the operating rod, thereby improving the user experience. The defect of this existing technology is that the reset assembly has insufficient return accuracy to the standard. In view of this situation, it is urgently needed to be improved. Summary of the Invention

[0003] In view of the above problems, the present invention provides a non-contact multi-directional input rocker potentiometer, the rocker can accurately find the center point of the gauge, has high reset accuracy, and has a good pressing feel.

[0004] To achieve the above-mentioned purpose, the present invention solves the problem through the following technical solutions: a non-contact multi-directional input rocker potentiometer, comprising a base, a cover shell, a wedge piece, a support frame, a magnetic part, a reset spring, a rocker structure, a non-contact Hall sensor, and an FPC board; the cover shell is arranged on the base to form an assembly space, the reset spring is arranged in the assembly space and is coaxial with the rocker structure; the top of the cover shell is provided with an avoidance hole for the movement of the rocker structure; 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 through a positioning pin corresponding to the FPC board; a wedge piece receiving groove for receiving the wedge piece is coaxially provided on the upper surface of the support frame, and the wedge piece is correspondingly arranged in the wedge piece receiving groove; a sensor receiving groove for receiving the non-contact Hall sensor is coaxially provided on the bottom of the support frame; the magnetic part is correspondingly arranged at the lower part of the inner cavity of the rocker structure and is coaxial with the non-contact Hall sensor;

[0005] The rocker arm structure includes a rocker arm and an arc-shaped rocking portion, the arc-shaped rocking portion is integrally formed at the lower portion of the rocker arm, the bottom of the rocker arm forms an extending section, and the magnetic part is correspondingly arranged in the extending section; the bottom of the arc-shaped rocking portion and the rocker arm are coaxially formed with an umbrella-shaped first receiving groove, an annular elastic washer coaxial with the rocker arm is provided in the first receiving groove, and the annular elastic washer is correspondingly sleeved on the outer side surface of the extending section; a spring limiting space is formed between the outer side surface of the support frame and the inner side wall of the base, the return spring is configured to be a cone with a narrow upper end and a wide lower end, the upper portion of the return spring extends into the first receiving groove and is correspondingly wound around the outer side surface of the extending section, the top of the return spring is in contact with the bottom of the annular elastic washer, and the annular elastic washer is in contact with the top of the first receiving groove under the elastic force of the return spring; the lower portion of the return spring extends into the spring limiting space and is wound around the outer side surface of the support frame.

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

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

[0008] Preferably, a first arcuate surface is formed on the top of the inner cavity of the cover shell, which matches the outer side surface of the arcuate rocking portion; and the arcuate rocking portion is in contact with the top of the inner cavity of the cover shell.

[0009] Preferably, the cover shell is formed with a second arc surface around the avoidance hole.

[0010] Preferably, fastening parts are provided on opposite sides of the base, and fastening protrusions are formed on the outer side surface of the cover shell and at positions corresponding to each of the fastening parts; when in the assembled state, the fastening parts are correspondingly hooked on the fastening protrusions.

[0011] Preferably, the extending section is provided with a magnetic component receiving groove for receiving the magnetic component and having an opening at the lower end, and the corresponding cover on the bottom opening side of the extending section is provided with a touch portion cooperating with the nest piece.

[0012] Preferably, the rocker is provided with a magnetic component mounting hole coaxially from the top, the magnetic component mounting hole extends to the position of the protruding section, and the magnetic component is coaxially embedded in the bottom of the inner cavity of the magnetic component mounting hole.

[0013] Preferably, the cross section of the return spring is set to be circular or rectangular.

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

[0015] The beneficial effects of the present invention are:

[0016] First, the return spring is configured in a tapered shape with a narrow upper end and a wide lower end. The upper portion of the return spring extends into the first receiving groove and is correspondingly wound around the outer side of the extended section. The lower portion of the return spring extends into the spring limiting space and is wound around the outer side of the support frame. This enables the rocker structure to better find the center point and complete accurate centering action, resulting in high return accuracy.

[0017] Second, an umbrella-shaped first receiving groove is formed at the bottom of the arc-shaped rocking portion and coaxially with the rocking arm. An annular elastic washer is disposed in the first receiving groove and is coaxial with the rocking arm. The annular elastic washer is correspondingly sleeved on the outer side of the extended section. The top of the return spring contacts the bottom of the annular elastic washer. Under the elastic force of the return spring, the annular elastic washer contacts the top of the first receiving groove. The annular elastic washer generates an upward preload, which assists and limits the return spring to achieve a rapid and accurate return to centering action.

[0018] Third, by setting the nest piece, it ensures a good control feel when pressing the joystick;

[0019] Fourth, the cover shell is formed with a second arc surface around the avoidance hole, which can limit the rotation direction of the rocker to prevent the rocker from deviating;

[0020] Fifth, the arc-shaped swing part is in contact with the top of the inner cavity of the cover shell, reducing the friction between the arc-shaped swing part and the cover shell, thereby increasing 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 use effect. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0023] Figure 2 It is a three-dimensional view of the first embodiment of the present invention.

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

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

[0026] Figure 5 2 is a cross-sectional view of the rocker structure in the second embodiment of the present invention.

[0027] The figures are marked as: base 10, non-contact Hall sensor 12, FPC board 11, nest piece 14, support frame 13, magnetic part 16, reset spring 15, annular elastic washer 17, rocker 18, cover shell 19, fastening protrusion 20, fastening part 21, arc-shaped rocking part 22, nest piece receiving groove 23, spring limiting space 24, touch part 25, positioning pin 26, magnetic part mounting hole 27, extension section 28, rocker structure 31, avoidance hole 32, first receiving groove 33, first arcuate surface 34, second arcuate surface 35. DETAILED DESCRIPTION

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

[0029] First embodiment, referring to Figure 1-4 As shown: A non-contact multi-directional input rocker potentiometer, including a base 10, a cover 19, a nest piece 14, a support frame 13, a magnetic part 16, a reset spring 15, a rocker structure 31, a non-contact Hall sensor 12, and an FPC board 11; the cover 19 is covered on the base 10 to form an assembly space, the reset spring 15 is arranged in the assembly space and is coaxial with the rocker structure 31; the top of the cover 19 is provided with an avoidance 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 The contactless Hall effect sensor 12 is mounted on the FPC board 11. The support frame 13 is connected to the base 10 via locating pins 26 that extend through the FPC board 11. A slot 23 for receiving the contactless Hall effect sensor 14 is defined coaxially on the top surface of the support frame 13. The contactless Hall effect sensor 12 is located coaxially on the bottom surface of the support frame 13. The magnetic element 16 is located coaxially with the contactless Hall effect sensor 12 and is positioned coaxially with the contactless Hall effect sensor 12. In this embodiment, the provision of the contactless Hall effect sensor ensures a good control feel when pressing the joystick.

[0030] The rocker structure 31 includes a rocker 18 and an arc-shaped rocking portion 22. The arc-shaped rocking portion 22 is integrally formed at the lower portion of the rocker 18. The bottom of the rocker 18 forms an extension section 28. The magnetic member 16 is correspondingly arranged in the extension section 28. The bottom of the arc-shaped rocking portion 22 is coaxial with the rocker 18 to form an umbrella-shaped first receiving groove 33. The first receiving groove 33 is provided with an annular elastic washer 17 coaxial with the rocker 18. 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 aligned with the inner side of the base 10. A spring retaining 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 portion of the return spring 15 extends into the first receiving groove 33 and is wound around the outer side of the extension section 28. The top of the return spring 15 contacts the bottom of the annular elastic washer 17, which, under the elastic force of the return spring 15, contacts the top of the first receiving groove 33. The lower portion of the return spring 15 extends into the spring retaining space 24 and is wound around the outer side of the support frame 13. The number of return springs 15 wound around the extension section 28 is set to be at least half a turn. The number of return springs 15 wound around the outer side of the support frame 13 is set to be at least half a turn. The cross-section of the return spring 15 is set to be circular or rectangular. This structural arrangement enables the rocker structure to better locate the center point and complete accurate centering movement, resulting in high return accuracy. In this embodiment, the rocker 18 is shaken or vertically pressed to drive the magnetic part 16 to move along any direction of X, Y, or Z relative to the non-contact Hall sensor 12. The non-contact Hall sensor 12 senses the magnetic force change of the magnetic part 16 and outputs a magnetic field change signal.

[0031] Preferably, the top of the inner cavity of the cover 19 is formed with a first curved surface 34 that matches the outer side of the curved rocking portion 22; the curved rocking portion 22 is in contact with the top of the inner cavity of the cover 19. This structural arrangement reduces the friction between the curved rocking portion and the cover, thereby improving the service life.

[0032] Preferably, the cover shell 19 is formed with a second arc surface 35 around the position of the avoidance hole 32. Through such a structural arrangement, the rotation direction of the rocker can be limited to prevent the rocker from deviating.

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

[0034] Preferably, the extension 28 defines a magnetic member receiving slot with an opening at the bottom end for receiving the magnetic member 16. A trigger portion 25 is provided at the bottom of the extension 28, corresponding to the cover, to engage with the nest piece 14. This structural arrangement allows the magnetic member 16 to be inserted from the bottom of the extension 28 and then sealed and secured by the trigger portion 25, thus facilitating 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 free end of the bottom 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 free end of the top of the return spring 15. The return spring 15 is correspondingly limited between the first limiting protrusion and the second limiting protrusion. This structural arrangement prevents the return spring from rotating during use, thereby ensuring effective use.

[0036] The second embodiment, referring to Figure 5 As shown, a magnetic mounting hole 27 is defined coaxially from the top of rocker 18. This hole extends to an extension 28, and magnetic element 16 is coaxially engaged with the bottom of the inner cavity of magnetic mounting hole 27. This structural arrangement allows magnetic element 16 to be installed into rocker 18 from the top, facilitating assembly.

[0037] The above examples merely illustrate two implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art would be able to make various modifications and improvements without departing from the scope of the present invention, all of which fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be determined by the appended claims.

Claims

1. A non-contact multi-directional input rocker potentiometer, comprising a base (10), a cover shell (19), a socket piece (14), a support frame (13), a magnetic member (16), a reset spring (15), a rocker structure (31), a non-contact Hall sensor (12), and an FPC board (11); the cover shell (19) is arranged on the base (10) to form an assembly space, the reset spring (15) is arranged in the assembly space and is coaxial with the rocker structure (31); a avoidance hole (32) for the rocker structure (31) to move is opened on the top of the cover shell (19); 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 arranged on the top of the cover shell (19); The Hall sensor (12) is correspondingly mounted on the FPC board (11); the support frame (13) is connected to the base (10) through a positioning pin (26) that passes through the FPC board (11); a socket piece receiving groove (23) for receiving the socket piece (14) is coaxially provided on the upper surface of the support frame (13), and the socket piece (14) is correspondingly arranged in the socket piece receiving groove (23); a sensor receiving groove for receiving the non-contact Hall sensor (12) is coaxially provided on the bottom of the support frame (13); the magnetic member (16) is correspondingly arranged at the lower part of the inner cavity of the rocker structure (31) and is coaxially arranged with the non-contact Hall sensor (12); It is characterized in that The rocker structure (31) comprises a rocker (18) and an arc-shaped rocking portion (22); the arc-shaped rocking portion (22) is integrally formed at the lower part of the rocker (18); the bottom of the rocker (18) forms an extension section (28); the magnetic member (16) is correspondingly arranged in the extension section (28); the bottom of the arc-shaped rocking portion (22) and the rocker (18) are coaxially formed with an umbrella-shaped first receiving groove (33); an annular elastic gasket (17) coaxially with the rocker (18) is arranged in the first receiving groove (33); the annular elastic gasket (17) is correspondingly sleeved on the outer side surface of the extension section (28); the outer side surface of the support frame (13) and the bottom A spring limiting space (24) is formed between the inner side walls of the seat (10); the reset spring (15) is configured to be conical with a narrow upper end and a wide lower end; the upper portion of the reset spring (15) extends into the first receiving groove (33) and is correspondingly wound around the outer side surface of the extending section (28); the top of the reset spring (15) is in contact with the bottom of the annular elastic washer (17); the annular elastic washer (17) is in contact with the top of the first receiving groove (33) under the elastic force of the reset spring (15); the lower portion of the reset spring (15) extends into the spring limiting space (24) and is wound around the outer side surface of the support frame (13).

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

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

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

5. The non-contact multi-directional input rocker potentiometer according to claim 1, characterized in that: The cover shell (19) is formed with a second arc surface (35) around the avoidance hole (32).

6. The non-contact multi-directional input rocker potentiometer according to claim 1, characterized in that: The base (10) is provided with fastening parts (21) on opposite sides, and fastening protrusions (20) are formed on the outer side surface of the cover shell (19) and at positions corresponding to the fastening parts (21); when in an assembled state, the fastening parts (21) are correspondingly hooked on the fastening protrusions (20).

7. The non-contact multi-directional input rocker potentiometer according to claim 2, characterized in that: The extending section (28) is provided with a magnetic member receiving groove for receiving the magnetic member (16) and having an opening at the lower end, and a trigger portion (25) cooperating with the nest piece (14) is provided corresponding to the bottom opening side of the extending section (28).

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

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

10. A non-contact multi-directional input rocker potentiometer according to any one of claims 1 to 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 free end of the bottom of the reset spring (15), and a second limiting protrusion is provided on the inner wall of the first receiving groove (33) at a position corresponding to the free top of the reset spring (15), and the corresponding limiting position of the reset spring (15) is provided between the first limiting protrusion and the second limiting protrusion.

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