High-precision micro-motion rocker

Abstract

The utility model belongs to the technical field of rocker control, and discloses a high-precision micro-motion rocker. The high-precision micro-motion rocker comprises a shell, a rocker arm assembly, a magnet and a chip assembly, the shell comprises an upper shell and a base shell, the upper shell and the base shell are provided with openings and can be buckled to form a first containing cavity, and a first shaft hole is formed in the upper shell in the vertical direction in a penetrating mode; the rocker arm assembly comprises a shaft assembly and a lower rocker arm, the lower rocker arm is arranged in the first containing cavity, one end of the shaft assembly is arranged outside the shell, the other end of the shaft assembly is arranged in the first containing cavity through the first shaft hole, the shaft assembly is in clearance fit with the first shaft hole, and the lower rocker arm is arranged on the peripheral side of the shaft assembly; the magnet is arranged between the shaft assembly and the base shell; the chip assembly comprises a PCBA board, a high-precision Hall position sensing element and a microswitch, the PCBA board is arranged on the side, away from the upper shell, of the base shell, the high-precision Hall position sensing element and the microswitch are arranged on the PCBA board, an avoiding hole is formed in the bottom of the base shell and corresponds to the microswitch in position, and the rocker arm assembly can trigger the microswitch.

Description

Technical Field

[0001] This utility model relates to the field of joystick control technology, and in particular to a high-precision micro joystick. Background Technology

[0002] Joysticks, as a common input device, are widely used in game controllers, industrial equipment, flight simulators and other fields.

[0003] In existing technologies, traditional carbon film joysticks are prone to wear, large resistance variations, low accuracy, short lifespan, and drift. They are also greatly affected by the environment, and their joystick trajectory is square or polygonal, making rework and repair inconvenient. Hall linear joysticks are highly dependent on magnetic fields and sensitive to temperature, easily affected by the environment, and their output trajectory is a non-ideal circle or square with poor linearity, making rework and repair inconvenient. Utility Model Content

[0004] The purpose of this invention is to provide a high-precision micro-rocker to solve the problems of existing technologies, such as carbon film rockers being prone to wear, having a short lifespan, being prone to drift and being greatly affected by the environment, and linear Hall effect rockers having poor linearity, being highly dependent on magnetic field consistency, being sensitive to temperature, and having a non-ideal circular output trajectory.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] A high-precision micro rocker arm is provided, comprising:

[0007] The housing includes an upper shell and a base shell, both of which have openings and can be fastened together to form a first receiving cavity. The upper shell has a first shaft hole that extends through it in the vertical direction.

[0008] A rocker arm assembly, comprising a shaft assembly and a lower rocker arm, wherein the lower rocker arm is placed within the first accommodating cavity, one end of the shaft assembly is placed outside the housing, and the other end is placed within the first accommodating cavity through the first shaft hole, wherein the shaft assembly is clearance-fitted with the first shaft hole, and the lower rocker arm is disposed on the periphery of the shaft assembly;

[0009] A magnet, wherein the magnet is positioned between the shaft assembly and the base housing;

[0010] The chip assembly includes a PCBA board, a high-precision Hall position sensing element, and a micro switch. The PCBA board is placed on the side of the base housing away from the upper housing. The high-precision Hall position sensing element and the micro switch are both located on the PCBA board. The bottom of the base housing is provided with a clearance hole, which corresponds to the position of the micro switch. The rocker arm assembly can trigger the micro switch when it is rocked.

[0011] As an optional technical solution for high-precision micro rocker arm, the rocker arm assembly further includes an abutment block, which is disposed in the first accommodating cavity and abuts against the micro switch through the clearance hole. The lower rocker arm is disposed above the abutment block and abuts against the abutment block. The swinging of the lower rocker arm can drive the abutment block to move along the vertical direction.

[0012] As an optional technical solution for high-precision micro rocker, the base shell includes a limiting plate, which together with the side wall of the base shell forms a slide rail, and the abutment block can move in the vertical direction within the slide rail.

[0013] As an optional technical solution for high-precision micro rocker arm, the shaft assembly includes a bushing, a connecting shaft is provided in the horizontal direction of the bushing, and a second shaft hole is provided in the lower rocker arm in the horizontal direction, with the connecting shaft and the second shaft hole being transitionally fitted.

[0014] As an optional technical solution for high-precision micro rocker arm, the shaft assembly further includes a shaft core, which is made of elastic material. The shaft core includes a shaft rod and a chassis. The shaft rod is vertically connected to the geometric center of the chassis. A bushing is fitted outside the shaft rod. The swinging of the bushing can cause the shaft core to bend. A cavity is provided inside the chassis, and a magnet is located inside the cavity.

[0015] As an optional technical solution for high-precision micro rocker, the shaft assembly also includes a spring, which is sleeved between the shaft and the bushing, and the spring can produce elastic deformation as the shaft bends.

[0016] As an optional technical solution for high-precision micro rocker, the housing also includes a rear cover, which is located on the other side of the PCBA board to fix the PCBA board.

[0017] As an optional technical solution for high-precision micro rocker, the chip assembly also includes multiple pins, which are soldered to the PCBA board.

[0018] As an optional technical solution for high-precision micro rocker, the back cover is provided with pin holes, and the pin holes correspond one-to-one with the pins, and the pins can pass through the pin holes.

[0019] As an optional technical solution for high-precision micro rocker, the upper shell, the base shell, the PCBA board and the rear cover are all provided with connection holes at corresponding positions. Fasteners pass through the connection holes in sequence to fix the upper shell, the base shell, the PCBA board and the rear cover.

[0020] The beneficial effects of this utility model are:

[0021] This application discloses a high-precision micro rocker arm, including a housing, a rocker arm assembly, a magnet, and a chip assembly. The housing includes an upper shell and a base shell, both of which have openings and can be fastened together to form a first receiving cavity. The upper shell has a first shaft hole extending vertically through it. The rocker arm assembly includes a shaft assembly and a lower rocker arm. The lower rocker arm is placed inside the first receiving cavity. One end of the shaft assembly is placed outside the housing, and the other end is placed inside the first receiving cavity through the first shaft hole. The shaft assembly and the first shaft hole are clearance-fitted. The lower rocker arm is located on the periphery of the shaft assembly. The magnet is placed between the shaft assembly and the base shell. The chip assembly includes a PCBA board, a high-precision Hall position sensing element, and a micro switch. The PCBA board is located on the side of the base shell away from the upper shell. Both the high-precision Hall position sensing element and the micro switch are located on the PCBA board. The bottom of the base shell has a clearance hole, which corresponds to the position of the micro switch. Shaking the rocker arm assembly can trigger the micro switch. The magnet provides the magnetic field, and the high-precision Hall position sensing element is equipped with a joystick-specific algorithm that uses the X, Y, and Z axis magnetic fields for calculation. It can perform X, Y, and Z ratio analysis of the magnetic field and execute ATAN transformation, thereby achieving high-precision calculation of the joystick position. This allows the magnetic field to achieve an ideal circular trajectory mapping, surpassing the linear mapping limitations of traditional bilinear Hall sensors. Furthermore, the high-precision Hall position sensing element also has an embedded adaptive mechanism that can effectively resist the influence of external factors. The micro switch can be matched with the customer's application scenario to accurately achieve effective function switching and confirmation, improving the joystick's user experience and lifespan. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments of this utility model 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 the content of the embodiments of this utility model and these drawings without creative effort.

[0023] Figure 1 This is an exploded view of the high-precision micro rocker arm provided in this embodiment of the utility model;

[0024] Figure 2 This is a cross-sectional view of the high-precision micro rocker arm provided in this embodiment of the utility model.

[0025] In the picture:

[0026] 10. Shell; 11. Upper shell; 12. Base shell; 121. Limiting plate; 13. Rear cover;

[0027] 20. Rocker arm assembly; 21. Shaft assembly; 211. Bushing; 2111. Connecting shaft; 212. Shaft center; 2121. Shaft rod; 2122. Chassis; 213. Spring; 22. Lower rocker arm; 221. Fixed shaft; 23. Abutment block;

[0028] 30. Magnet;

[0029] 40. Chip assembly; 41. PCBA board; 42. Micro switch; 43. Pin;

[0030] 50. Fasteners. Detailed Implementation

[0031] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0032] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" 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 communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0033] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0034] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, 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. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0035] In existing technologies, traditional carbon film joysticks are prone to wear, large resistance variations, low accuracy, short lifespan, and drift. They are also greatly affected by the environment, and their joystick trajectory is square or polygonal, making rework and repair inconvenient. Hall linear joysticks are highly dependent on magnetic fields and sensitive to temperature, easily affected by the environment, and their output trajectory is a non-ideal circle or square with poor linearity, making rework and repair inconvenient.

[0036] To address the aforementioned problems, this embodiment provides a high-precision micro-rocker, see reference. Figure 1 and Figure 2 It includes a housing 10, a rocker arm assembly 20, a magnet 30, and a chip assembly 40.

[0037] Furthermore, the housing 10 includes an upper shell 11 and a base shell 12. Both the upper shell 11 and the base shell 12 have openings and can be fastened together to form a first receiving cavity. The upper shell 11 has a first shaft hole extending vertically through it. Specifically, the upper shell 11 is a cuboid, and the first shaft hole is circular and located at the geometric center of the upper shell 11. To enhance the aesthetics of the housing surface, the surface of the upper shell 11 and the edge of the first shaft hole are provided with outwardly bulging arc-shaped connecting surfaces. Specifically, the base shell 12 is a cuboid and has the same length and width as the upper shell 11, so that the outer surfaces are smoothly connected after the upper shell 11 and the base shell 12 are fastened together, resulting in an aesthetically pleasing appearance, ease of handling and cleaning, and reduced dust accumulation.

[0038] Further, the rocker arm assembly 20 includes a shaft assembly 21 and a lower rocker arm 22. The lower rocker arm 22 is placed in the first accommodating cavity. One end of the shaft assembly 21 is placed outside the housing 10, and the other end is placed in the first accommodating cavity through a first shaft hole. The shaft assembly 21 and the first shaft hole are clearance-fitted. The lower rocker arm 22 is disposed around the shaft assembly 21. Specifically, the lower rocker arm 22 is configured as a frame-shaped structure with openings on both sides. Specifically, the shaft assembly 21 includes a bushing 211. The bushing 211 is provided with a connecting shaft 2111 in the horizontal direction. The lower rocker arm 22 is provided with a second shaft hole in the horizontal direction. The connecting shaft 2111 and the second shaft hole are transition-fitted. In this embodiment, two connecting shafts 2111 are symmetrically arranged along the central axis of the bushing 211, and two second shaft holes are symmetrically arranged along the central axis of the lower rocker arm 22. In other embodiments, two threaded holes can be provided on the bushing 211, and two through holes can be provided on the lower rocker arm 22. Bolts are used to fix the bushing 211 and the lower rocker arm 22.

[0039] Furthermore, the lower rocker arm 22 is provided with fixing shafts 221 on both sides where the second shaft hole is not provided. The upper shell 11 and the base shell 12 are provided with arc-shaped notches at corresponding positions. When the upper shell 11 and the base shell 12 are fastened together, a fixing hole is formed. The fixing shaft 221 is clearance-fitted with the fixing hole. The side wall of the fixing hole can fix and limit the lower rocker arm 22, and indirectly fix the bushing 211, so that the upper shell 11, the base shell 12, the bushing 211 and the lower rocker arm 22 are fixed as an integral structure.

[0040] Furthermore, the magnet 30 is placed between the shaft assembly 21 and the base shell 12. In this embodiment, the magnet 30 is configured as a flat cylinder. Specifically, the shaft assembly 21 also includes a shaft 212, which is made of an elastic material, such as rubber or elastic plastic. The shaft 212 includes a shaft rod 2121 and a base 2122. The shaft rod 2121 is vertically connected to the geometric center of the base 2122. A bushing 211 is fitted outside the shaft rod 2121. The swinging of the bushing 211 can cause the shaft 212 to bend. A cavity is provided inside the base 2122, and the magnet 30 is placed inside the cavity. In this embodiment, an insertion hole is provided at the bottom of the base 2122. By utilizing the elasticity of the base 2122 itself, the magnet 30 can be inserted into the cavity and fixed by the inner wall of the cavity. The shaft 212 will not detach from the first receiving cavity due to the limitation of the upper end surface of the bushing 211 and the inner bottom surface of the base shell 12. In other embodiments, the bottom of the chassis 2122 can be set as an opening, and after the magnet 30 is placed in the cavity, the chassis 2122 is glued to the inner bottom surface of the base shell 12.

[0041] Furthermore, the shaft assembly 21 also includes a spring 213, which is sleeved between the shaft 2121 and the bushing 211. The spring 213 can elastically deform as the shaft 212 bends. For example, when the operator shakes the bushing 211, the bushing 211 swings, causing the shaft 212 to bend and the spring 213 to elastically deform. When the operation ends, the operator releases the bushing 211, and the bushing 211 returns to its original position under the action of the self-rebound of the shaft 212 and the self-rebound of the spring 213.

[0042] Furthermore, the chip assembly 40 includes a PCBA board 41, a high-precision Hall position sensing element, and a micro switch 42. The PCBA board 41 is placed on the side of the base housing 12 away from the upper housing 11. The high-precision Hall position sensing element and the micro switch 42 are both located on the PCBA board 41. The bottom of the base housing 12 is provided with a clearance hole, which corresponds to the position of the micro switch 42. The rocker arm assembly 20 can trigger the micro switch 42 when it is rocked. In this embodiment, the swing of the bushing 211 causes the shaft 212 to bend, which can change the position and angle of the magnet 30, thereby changing the magnetic field. Since the high-precision Hall position sensing element is equipped with a three-axis magnetic field of X, Y, and Z, the trajectory of the bushing 211 can be identified in any direction and angle, and the trajectory shape is not limited.

[0043] Specifically, the rocker arm assembly 20 further includes an abutment block 23, which is disposed within the first accommodating cavity and abuts against the micro switch 42 through a clearance hole. The lower rocker arm 22 is disposed above the abutment block 23 and abuts against the abutment block 23. The swinging of the lower rocker arm 22 can drive the abutment block 23 to move vertically. Specifically, the base shell 12 includes a limiting plate 121, which together with the side wall of the base shell 12 forms a slide rail, and the abutment block 23 can move vertically within the slide rail.

[0044] Magnet 30 provides a magnetic field, and the high-precision Hall position sensing element is equipped with a joystick-specific algorithm that involves calculations based on the X, Y, and Z axis magnetic fields. This algorithm can perform X, Y, and Z ratio analysis of the magnetic field and execute ATAN transformation. The ATAN (Arctangent) algorithm is a mathematical method used to calculate the arctangent function, often used to determine angles or solve geometric problems. This enables high-precision calculation of the joystick position, allowing the magnetic field to achieve an ideal circular trajectory mapping, surpassing the linear mapping limitations of traditional bilinear Hall sensors. Furthermore, the high-precision Hall position sensing element also incorporates an adaptive mechanism to effectively combat the influence of external factors. The microswitch 42 can be adapted to customer application scenarios to accurately achieve effective function switching and confirmation, improving the joystick's user experience and lifespan.

[0045] Furthermore, the housing 10 also includes a rear cover 13, which is located on the other side of the PCBA board 41 to fix the PCBA board 41. Specifically, the rear cover 13 is configured as a plate-like structure. Specifically, the chip assembly 40 also includes a plurality of pins 43, which are soldered to the PCBA board 41. Soldering the pins 43 to the PCBA board 41 increases the tensile strength of the pins 43, making them less prone to breakage or detachment. Specifically, the rear cover 13 is provided with pin holes, each corresponding to a pin 43, through which the pins 43 can pass. Specifically, the rear cover 13 is also provided with an inner hole to accommodate and protect other structures of the PCBA board 41.

[0046] Furthermore, connecting holes are provided at corresponding positions on the upper shell 11, base shell 12, PCBA board 41, and rear cover 13. Fasteners 50 pass through the connecting holes in sequence to fix the upper shell 11, base shell 12, PCBA board 41, and rear cover 13. Specifically, there are four connecting holes located at the four corners of the above structure. In this embodiment, the fasteners 50 are rivets. In other embodiments, the fasteners 50 can also be bolts, etc. Through the ingenious fitting of the structure and the connection of the fasteners 50, the overall layout of the high-precision micro rocker arm has a high utilization rate and good impact resistance. The high-precision micro rocker arm structure provided in this embodiment is miniaturized and easy to carry. Specifically, the dimensions of the high-precision micro rocker arm are approximately 10mm*9.5mm*6.3mm.

[0047] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A high-precision micro rocker arm, characterized in that, include: The housing (10) includes an upper shell (11) and a base shell (12). Both the upper shell (11) and the base shell (12) have openings and can be fastened together to form a first receiving cavity. The upper shell (11) has a first shaft hole through it in the vertical direction. A rocker arm assembly (20) includes a shaft assembly (21) and a lower rocker arm (22). The lower rocker arm (22) is placed in the first accommodating cavity. One end of the shaft assembly (21) is placed outside the housing (10), and the other end is placed in the first accommodating cavity through the first shaft hole. The shaft assembly (21) is clearance-fitted with the first shaft hole. The lower rocker arm (22) is disposed on the periphery of the shaft assembly (21). A magnet (30) is placed between the shaft assembly (21) and the base housing (12); The chip assembly (40) includes a PCBA board (41), a high-precision Hall position sensing element, and a micro switch (42). The PCBA board (41) is placed on the side of the base shell (12) away from the upper shell (11). The high-precision Hall position sensing element and the micro switch (42) are both located on the PCBA board (41). The bottom of the base shell (12) is provided with a clearance hole, which corresponds to the position of the micro switch (42). The rocker arm assembly (20) can trigger the micro switch (42) when it is rocked.

2. The high-precision micro rocker arm according to claim 1, characterized in that, The rocker arm assembly (20) further includes an abutment block (23), which is disposed in the first accommodating cavity and abuts against the micro switch (42) through the clearance hole. The lower rocker arm (22) is disposed above the abutment block (23) and abuts against the abutment block (23). The swinging of the lower rocker arm (22) can drive the abutment block (23) to move along the vertical direction.

3. The high-precision micro rocker arm according to claim 2, characterized in that, The base shell (12) includes a limiting plate (121), which together with the side wall of the base shell (12) forms a slide, and the abutment block (23) can move in the vertical direction within the slide.

4. The high-precision micro rocker arm according to claim 1, characterized in that, The shaft assembly (21) includes a bushing (211), the bushing (211) is provided with a connecting shaft (2111) in the horizontal direction, the lower rocker arm (22) is provided with a second shaft hole in the horizontal direction, and the connecting shaft (2111) is transitionally fitted with the second shaft hole.

5. The high-precision micro rocker arm according to claim 4, characterized in that, The shaft assembly (21) also includes a shaft (212), which is made of an elastic material. The shaft (212) includes a shaft rod (2121) and a chassis (2122). The shaft rod (2121) is vertically connected to the geometric center of the chassis (2122). The bushing (211) is sleeved on the outside of the shaft rod (2121). The swing of the bushing (211) can cause the shaft (212) to bend. The chassis (2122) has a cavity inside, and the magnet (30) is located in the cavity.

6. The high-precision micro rocker arm according to claim 5, characterized in that, The shaft assembly (21) also includes a spring (213), which is sleeved between the shaft (2121) and the bushing (211). The spring (213) can undergo elastic deformation as the shaft (212) bends.

7. The high-precision micro rocker arm according to any one of claims 1-6, characterized in that, The housing (10) also includes a rear cover (13), which is located on the other side of the PCBA board (41) to fix the PCBA board (41).

8. The high-precision micro rocker arm according to claim 7, characterized in that, The chip assembly (40) also includes a plurality of pins (43), which are soldered to the PCBA board (41).

9. The high-precision micro rocker arm according to claim 8, characterized in that, The back cover (13) is provided with pin holes, and the pin holes correspond one-to-one with the pins (43), and the pins (43) can pass through the pin holes.

10. The high-precision micro rocker arm according to claim 7, characterized in that, The upper shell (11), the base shell (12), the PCBA board (41) and the rear cover (13) are provided with connection holes at corresponding positions. Fasteners (50) pass through the connection holes in sequence to fix the upper shell (11), the base shell (12), the PCBA board (41) and the rear cover (13).

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