Rocker device and handle

Abstract

The embodiment of the present disclosure relates to the technical field of electronic equipment, and provides a rocker device and a handle, the rocker device comprising: a rocker, a sensing assembly, the sensing assembly comprising a slider, a first electrode plate and a second electrode plate, the slider being fixedly connected with a movable electrode plate, the first electrode plate and the second electrode plate being located on the same side of the slider away from the rocker, and the first electrode plate and the second electrode plate being fixed in a housing, the slider being connected with the rocker, and the rocker moving to drive the slider to move in the housing; and a control unit, the control unit being connected with the first electrode plate and the second electrode plate, for detecting a capacitance value between the first electrode plate and the second electrode plate, and outputting angle information of the rocker according to the capacitance value between the first electrode plate and the second electrode plate. The embodiment of the present disclosure can at least improve the sensitivity and reliability of detecting the rotation angle of the rocker, and can also reduce the manufacturing cost of the rocker device.

Description

Technical Field

[0001] This disclosure relates to the field of electronic device technology, and in particular to a joystick device and a handle. Background Technology

[0002] As living standards improve and people's leisure time becomes richer, joysticks are used more and more frequently in games. The joystick on a game controller, as a common component, is widely used. During use, the joystick's rotation angle needs to be detected. However, there are problems with detecting the joystick's rotation angle. Summary of the Invention

[0003] This disclosure provides a joystick device and a game controller, which can at least improve the reliability and sensitivity of joystick rotation angle detection, and also reduce the manufacturing cost of the joystick device.

[0004] According to some embodiments of this disclosure, one aspect of this disclosure provides a rocker arm device, including: a housing; a rocker arm movably connected to the housing; a sensing component including a slider, a first electrode plate, and a second electrode plate, the slider being located inside the housing, the slider being fixedly connected to a movable electrode plate, the first electrode plate and the second electrode plate being located on the same side of the slider away from the rocker arm, and the first electrode plate and the second electrode plate being fixed inside the housing, the movable electrode plate having a first facing area with the first electrode plate, the movable electrode plate having a second facing area with the second electrode plate, the slider being connected to the rocker arm, and the rocker arm moving causes the slider to move within the housing, thereby increasing or decreasing the first facing area, wherein the second facing area remains unchanged; and a control unit connected to the first electrode plate and the second electrode plate, for detecting the capacitance value between the first electrode plate and the second electrode plate, and outputting the angle information of the rocker arm based on the capacitance value between the first electrode plate and the second electrode plate.

[0005] In some embodiments, the first electrode plate includes: a first portion, which is the portion of the first electrode plate directly opposite the movable electrode plate; a second portion, which is the remaining portion of the first electrode plate excluding the first portion; the movable electrode plate includes: a third portion, which is the portion of the movable electrode plate directly opposite the first electrode plate; a fourth portion, which is the portion of the movable electrode plate directly opposite the second electrode plate; and a fifth portion, which is the remaining portion of the movable electrode plate excluding the third and fourth portions; wherein the first portion and the third portion constitute a first capacitor, the fourth portion and the second electrode plate constitute a second capacitor, the first capacitor and the second capacitor are connected in series to form a series capacitor, and the capacitance value between the first electrode plate and the second electrode plate is the capacitance value of the series capacitor.

[0006] In some embodiments, the area directly opposite the first electrode plate and the movable electrode plate is a third opposing area, and the area directly opposite the second electrode plate and the movable electrode plate is a fourth opposing area; wherein, the first opposing area is greater than 0 and less than the third opposing area, and the second opposing area is equal to the fourth opposing area.

[0007] In some embodiments, the movable electrode is located on the surface of the slider near the first electrode and the second electrode.

[0008] In some embodiments, in a predetermined direction, the top surface of the movable electrode plate is not lower than the top surface of the first electrode plate, the top surface of the movable electrode plate is not lower than the top surface of the second electrode plate, the bottom surface of the movable electrode plate is not higher than the bottom surface of the first electrode plate, and the bottom surface of the movable electrode plate is not higher than the bottom surface of the second electrode plate.

[0009] In some embodiments, the capacitance between the first electrode and the second electrode satisfies:

[0010]

[0011] Where C is the capacitance between the first electrode and the second electrode, ε is the dielectric constant of air, L0 is the width of the first electrode and the movable electrode directly opposite each other, x is the length of the first part and the movable electrode directly opposite each other, L1 is the length of the second electrode and the movable electrode directly opposite each other, and d0 is the distance between the first electrode and the movable electrode.

[0012] In some embodiments, the first electrode plate and the second electrode plate are located on the same circuit board.

[0013] In some embodiments, the first electrode plate includes:

[0014] Two mutually independent first differential plates and second differential plates are provided. Both the first and second differential plates are located on the same side as the second plate, and the second plate is located between the first and second differential plates. The area of ​​the movable plate directly opposite the first differential plate is the fifth opposing area. The area of ​​the first differential plate directly opposite the movable plate is the sixth opposing area. The area of ​​the movable plate directly opposite the second differential plate is the seventh opposing area. The area of ​​the second differential plate directly opposite the movable plate is the eighth opposing area. The fifth opposing area is greater than 0 and less than the sixth opposing area. The seventh opposing area is greater than 0 and less than the eighth opposing area.

[0015] In some embodiments, the joystick includes a joystick cap, a first rod, and a second rod. The first rod is movable along a first direction to allow the joystick cap to move in the first direction, and the second rod is movable along a second direction to allow the joystick cap to move in the second direction. The first direction is perpendicular to the second direction. The joystick device includes two sensing components. The first rod is connected to one of the sensing components for detecting the angle of movement of the joystick in the first direction, and the second rod is connected to one of the sensing components for detecting the angle of movement of the joystick in the second direction.

[0016] According to some embodiments of this disclosure, another aspect of this disclosure also provides a handle, including the joystick device of any of the above embodiments.

[0017] The technical solutions provided in this disclosure have at least the following advantages:

[0018] The joystick device provided in this disclosure includes a housing, a joystick, and a sensing assembly. The joystick is movably connected to the housing. The sensing assembly includes a slider, a first electrode plate, and a second electrode plate. The slider is located inside the housing and is fixedly connected to a movable electrode plate. Both the first and second electrode plates are located on the same side of the slider away from the joystick and are fixed inside the housing. The movable electrode plate and the first electrode plate have a first facing area, and the movable electrode plate and the second electrode plate have a second facing area. The slider is connected to the joystick, and the movement of the joystick causes the slider to move within the housing, thereby increasing or decreasing the first facing area, while the second facing area remains unchanged. The joystick device also includes a control unit connected to the first and second electrode plates. The control unit is used to detect the capacitance value between the first and second electrode plates and output the angle information of the joystick based on the capacitance value between the first and second electrode plates. When the joystick rotates, it moves the movable plate connected to the slider, adjusting the size of the first facing area and causing a change in the capacitance between the first and second plates. The control unit outputs the joystick angle information based on the capacitance value between the first and second plates, thus detecting the joystick rotation angle. Compared to related technologies that use Hall sensors to detect the joystick rotation angle, the control unit detects the capacitance value between the first and second plates, making the detection result less susceptible to external interference and improving the reliability of the joystick rotation angle detection. Furthermore, different joystick rotation angles result in different first and second facing areas, leading to different capacitance values ​​detected by the control unit. This ensures the control unit can detect any rotation of the joystick, further improving the sensitivity of the joystick rotation angle detection. Additionally, compared to solutions where the first and second plates are located on opposite sides of the slider, this embodiment places the first and second plates on the same side of the slider. This facilitates the electrical connection between the first and second plates and the main circuit, reducing the consumables needed for connecting them and thus lowering the manufacturing cost of the joystick device. Attached Figure Description

[0019] One or more embodiments are illustrated by way of example with corresponding pictures in the accompanying drawings. These illustrations do not constitute a limitation on the embodiments. Unless otherwise stated, the pictures in the accompanying drawings do not constitute a limitation on scale. In order to more clearly illustrate the technical solutions in the embodiments of this disclosure or the conventional technology, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figures 1 to 3 Here are some top-view structural diagrams of rocker devices in related technologies;

[0021] Figure 4 A schematic diagram of a rocker device provided in an embodiment of this disclosure;

[0022] Figures 5 to 7 Several partial top view structural schematic diagrams of the joystick device provided in the embodiments of this disclosure;

[0023] Figures 8 to 11 Several partial structural schematic diagrams of the rocker device provided in the embodiments of this disclosure;

[0024] Figure 12 for Figure 9 A top-view structural diagram;

[0025] Figure 13 Another partial structural schematic diagram of the sensing component provided in the embodiments of this disclosure;

[0026] Figure 14 for Figure 13 A top-view structural diagram;

[0027] Figure 15 This is a partial top view of another rocker arm device provided in an embodiment of the present disclosure. Detailed Implementation

[0028] Figures 1 to 3 These are schematic diagrams of several top views of rocker mechanisms in related technologies.

[0029] refer to Figure 1 The rocker device in the related technology includes a housing (not shown), a rocker arm 100, a slider 101, a magnet 102, and a Hall sensor 103. The rocker arm 100 is movably connected to the housing, the slider 101 is located inside the housing and connected to the rocker arm 100, the magnet 102 is fixed inside the slider 101, and the Hall sensor 103 is fixed inside the housing.

[0030] The housing provides support and protection for the other components of the rocker arm.

[0031] The joystick 100 includes a joystick cap 110, a pivot (not shown), and a joystick body 120. The joystick cap 110 is used by the user to move the joystick 100. The pivot is a fixed component fixedly connected to the housing, serving as the fulcrum of the joystick 100. The joystick body 120 is used to move the slider 101 when the joystick cap 110 moves. Specifically, refer to... Figure 2 When the joystick cap 110 rotates to the right in the first direction X, the joystick body 120 causes the slider 101 to move to the left in the first direction X. (Reference) Figure 3 When the joystick cap 110 rotates to the left in the first direction X, the joystick body 120 drives the slider 101 to move to the right in the first direction X.

[0032] Continue to refer to Figure 1 The slider 101 is connected to the rocker arm 120 and can move within the housing under the action of the rocker arm 120 to change the distance between the magnet 102 and the Hall sensor 103 inside the slider 101. Figure 1 Since no external force is applied to the joystick 200, the magnet 102 is in its initial position, at which time the distance between the magnet 102 and the Hall sensor 103 is L0.

[0033] Magnet 102 is used to generate a magnetic field.

[0034] Hall sensor 103 is used to detect the magnetic field generated by magnet 102 around Hall sensor 103.

[0035] refer to Figure 2 When the rocker arm cap 110 rotates to the right in the first direction X, the rocker arm body 120 drives the slider 101 to move to the left in the first direction X. At this time, the distance L1 between the magnet 102 and the Hall sensor 103 is smaller, and the magnetic field around the Hall sensor 103 becomes stronger. (Reference) Figure 3 When the joystick cap 110 rotates to the left in the first direction X, the joystick body 120 drives the slider 101 to move to the right in the first direction X. At this time, the distance L2 between the magnet 102 and the Hall sensor 103 is relatively large, and the magnetic field around the Hall sensor 103 becomes weaker. The strength of the magnetic field of the Hall sensor 103 is related to the distance between the Hall sensor 103 and the magnet 102, and the distance between the Hall sensor 103 and the magnet 102 is related to the rotation angle of the joystick 100. Therefore, the current angle of the joystick 100 can be obtained by detecting the magnetic field around the Hall sensor 103.

[0036] However, the Hall sensor 103 is easily affected by external magnetic fields, causing the rotation angle of the joystick detected by the Hall sensor to differ from the actual situation, affecting the reliability of the rotation angle detection of the joystick 100. Furthermore, the Hall sensor 103 is less sensitive to the rotation angle of the joystick 100 when affected by external magnetic fields.

[0037] Related technologies also use carbon film sensors to detect the rotation angle of the joystick. However, carbon film sensors suffer from problems such as contact wear and low detection accuracy, resulting in low reliability and sensitivity in detecting the rotation angle of the joystick.

[0038] In conclusion, the sensitivity and reliability of detecting the rotation angle of the joystick need to be improved.

[0039] This disclosure provides a rocker arm device. Rotation of the rocker arm moves a movable plate connected to a slider, adjusting the size of the first opposing area and causing a change in the capacitance between the first and second plates. The control unit outputs the rocker arm's angle information based on the capacitance value between the first and second plates, thus detecting the rocker arm's rotation angle. Compared to related technologies that use Hall effect sensors to detect the rocker arm's rotation angle, the control unit detects the capacitance value between the first and second plates, making the detection result less susceptible to external interference and improving the reliability of the detected rotation angle. Furthermore, different rocker arm rotation angles result in different first and second opposing areas, leading to different capacitance values ​​detected by the control unit. This ensures the control unit can detect any rotation of the rocker arm, further improving the sensitivity of the detected rotation angle. Additionally, the first and second plates are located on the same side of the slider, facilitating electrical connection between the first and second plates and the main circuit, thus reducing the manufacturing cost of the rocker arm device.

[0040] The embodiments of this disclosure will now be described in detail with reference to the accompanying drawings. However, those skilled in the art will understand that many technical details have been provided in the embodiments of this disclosure to facilitate a better understanding of the disclosure. However, the technical solutions claimed in this disclosure can be implemented even without these technical details and various variations and modifications based on the following embodiments.

[0041] Figure 4 This is a schematic diagram of a rocker arm device provided in an embodiment of the present disclosure. Figure 5 and Figure 6 This is a partial top view of the rocker device provided in an embodiment of the present disclosure.

[0042] refer to Figures 4 to 6The rocker arm 200 device includes a housing 20, a rocker arm 200, and a sensing component 300. The rocker arm 200 is movably connected to the housing 20. The sensing component 300 includes a slider 301, a first electrode plate 302, and a second electrode plate 303. The slider 301 is located inside the housing 20, and a movable electrode plate 304 is fixedly connected to the slider 301. The first electrode plate 302 and the second electrode plate 303 are both located on the same side of the slider 301 away from the rocker arm 200, and the first electrode plate 302 and the second electrode plate 303 are fixed inside the housing 20. The movable electrode plate 304 and the first electrode plate 302 have a first facing area, and the movable electrode plate 304 and the second electrode plate 303 have a second facing area. The slider 301 is connected to the rocker arm 200. The movement of the rocker arm 200 causes the slider 301 to move within the housing 20, thereby increasing or decreasing the first facing area, while the second facing area remains unchanged. The control unit (not shown) is connected to the first electrode plate 302 and the second electrode plate 303. It is used to detect the capacitance value between the first electrode plate 302 and the second electrode plate 303, and output the angle information of the rocker arm 200 based on the capacitance value between the first electrode plate 302 and the second electrode plate 303.

[0043] The housing 20 provides support and protection for the other components of the rocker arm assembly.

[0044] The joystick 200 includes a joystick cap 210, a pivot (not shown), and a joystick body 220. The joystick cap 210 is used by the user to rotate the joystick 200. The pivot is a fixed component fixedly connected to the housing 20, serving as the fulcrum of the joystick 200. The joystick body 220 is used to move the slider 301 when the joystick cap 210 rotates. Specifically, when the joystick cap 210 rotates to the left in the first direction X, the joystick body 220 moves the slider 301 to the right in the first direction X. (Reference) Figure 6 When the joystick cap 210 rotates to the right in the first direction X, the joystick body 220 drives the slider 301 to move to the left in the first direction X.

[0045] The sensing component 300 tests the rotation angle of the joystick 200.

[0046] It should be noted that, Figure 5 The joystick is in its initial position. At this time, the user does not apply any external force to move the joystick 200, and the extension direction of the joystick body 220 is perpendicular to the first direction X. Figure 6 When an external force is applied to the user to rotate the rocker arm 200, the angle between the extension direction of the rocker arm 200 and the perpendicular direction of the first direction X is the rotation angle of the rocker arm 200.

[0047] The slider 301 is used to move the movable electrode plate 304 when the rocker arm 200 moves.

[0048] The first electrode plate 302 is used to form a capacitor structure with the second electrode plate 303.

[0049] The movable electrode 304 is used to connect with the slider 301. When the rocker arm 200 rotates, the movable electrode 304 is driven by the slider 301 to change the first facing area, thereby changing the capacitance between the first electrode 302 and the second electrode 303. Different rotation angles of the rocker arm 200 result in different values ​​of the first facing area, which in turn changes the capacitance between the first electrode 302 and the second electrode 303. The rotation angle of the rocker arm 200 can be detected based on the capacitance value between the first electrode 302 and the second electrode 303.

[0050] The first directly opposite area is the area of ​​the portion of the movable electrode 304 and the first electrode 302 that are directly opposite each other.

[0051] The second opposing area is the area of ​​the portion of the movable electrode 304 and the second electrode 303 that are directly opposite each other.

[0052] Figure 7 This is a partial top view of another rocker arm device provided in an embodiment of the present disclosure.

[0053] refer to Figure 7 In some embodiments, the movable electrode 304 is located on the surface of the slider 301 near the first electrode 302 and the second electrode 303. This arrangement allows the capacitance between the first electrode 302 and the second electrode 303 to be unaffected by the slider 301, thereby improving the sensitivity and reliability of detecting the rotation angle of the rocker arm 200.

[0054] Figure 8 This is a partial structural schematic diagram of a rocker device provided in an embodiment of this disclosure.

[0055] In some embodiments, the first electrode 302 includes a first portion 312 and a second portion 322. The first portion 312 is the part of the first electrode 302 facing the movable electrode 304, and the second portion 322 is the remaining part of the first electrode 302 excluding the first portion 312. The movable electrode 304 includes a third portion 314, a fourth portion 324, and a fifth portion 334. The third portion 314 is the part of the movable electrode 304 facing the first electrode 302, the fourth portion 324 is the part of the movable electrode 304 facing the second electrode 303, and the fifth portion 334 is the remaining part of the movable electrode 304 excluding the third portion 314 and the fourth portion 324. The first portion 312 and the third portion 314 constitute a first capacitor, the fourth portion 324 and the second electrode 303 constitute a second capacitor, and the first capacitor and the second capacitor are connected in series to form a series capacitor. The capacitance between the first electrode 302 and the second electrode 303 is the capacitance value of the series capacitor.

[0056] It is understandable that the area directly opposite each other between the first part 312 and the third part 314 is the first directly opposite area, and the area directly opposite each other between the fourth part 324 and the second electrode plate 303 is the second directly opposite area.

[0057] When the joystick 200 rotates, it causes the movable plate 304 connected to the slider 301 to move, changing the first facing area and thus changing the first capacitor. The second facing area does not change when the joystick 200 rotates, so the second capacitor does not change. The capacitance between the first plate 302 and the second plate 303 is the capacitance of the first capacitor and the second capacitor connected in series. Therefore, the rotation of the joystick 200 changes the capacitance between the first plate 302 and the second plate 303. The angle of rotation of the joystick 200 can be determined based on the capacitance value.

[0058] According to the formula for calculating the capacitance of two parallel plates, the dielectric constant between the two plates, the area of ​​the two plates facing each other, and the distance between the two plates are three variables that cause changes in the capacitance value. For the first capacitor, when the rocker arm 200 rotates, the area of ​​the first facing plate changes, while the dielectric constant between the first part 312 and the third part 314, and the distance between the first part 312 and the third part 314, remain unchanged. Therefore, when the rocker arm 200 rotates, the value of the first capacitor has a linear relationship with the area of ​​the first facing plate. For the second capacitor, when the joystick 200 rotates, the area of ​​the second capacitor remains unchanged. The dielectric constant between the fourth part 324 and the second plate 303, as well as the distance between the fourth part 324 and the second plate 303, do not change. Therefore, the second capacitor remains unchanged and is constant. According to the formula for a series capacitor structure, the reciprocal of the capacitance between the first plate 302 and the second plate 303 is equal to the sum of the reciprocals of the first and second capacitors. The second capacitor is constant, which means that the reciprocal of the series capacitance is equal to the sum of the reciprocals of the first and second capacitors. This avoids the situation where an increase in the first capacitance and a decrease in the second capacitance, or a decrease in the first capacitance and an increase in the second capacitance, correspond to the same series capacitance value. This also avoids the situation where the movable plate 304 is in two positions but corresponds to the same series capacitance value, making it impossible for the control unit to determine the position of the movable plate 304 based on the series capacitance value, thus affecting the determination of the rotation angle of the joystick 200.

[0059] When the second capacitor is constant, and the area of ​​the first opposing electrode increases, as analyzed above, the first capacitor will increase, its reciprocal will decrease, and thus the reciprocal of the series capacitor will decrease, resulting in an increase in the series capacitor. Conversely, when the area of ​​the first opposing electrode decreases, the first capacitor will decrease, its reciprocal will increase, and thus the reciprocal of the series capacitor will increase, resulting in a decrease in the series capacitor. For each different rotation angle of the rocker 200, the position of the movable plate 304 is different, the area of ​​the first opposing electrode is different, the size of the first capacitor is different, and therefore the size of the series capacitor is different. The rotation angle of the rocker 200 can be determined based on the size of the series capacitor. Furthermore, the area of ​​the first opposing electrode and the first capacitor have a linear relationship. Since the second capacitor is constant, the reciprocal of the series capacitor is equal to the sum of the reciprocals of the first and second capacitors. The series capacitor changes with the area of ​​the first opposing electrode, thus exhibiting a linear relationship between the series capacitor and the area of ​​the first opposing electrode, simplifying subsequent signal processing.

[0060] Figures 9 to 11 Schematic diagrams of several partial structures of the rocker device provided in embodiments of this disclosure. Figure 9 This diagram illustrates the situation where the movable plate is in operation without any external force applied. Figure 10 This illustrates the situation where the movable plate is at its left limit after an external force is applied. Figure 11 This illustrates the situation where the movable plate is at its right limit after an external force is applied.

[0061] In some embodiments, the area directly opposite the first electrode plate 302 and the movable electrode plate 304 is the third opposing area, and the area directly opposite the second electrode plate 303 and the movable electrode plate 304 is the fourth opposing area; wherein, the first opposing area can be greater than 0 and less than the third opposing area, and the second opposing area can be equal to the fourth opposing area.

[0062] Also refer to Figure 5 and Figure 9 When no external force is applied to the rocker arm 200, the left edge of the movable plate 304 is to the right of the left edge of the first plate 302, and the left edge of the movable plate 304 is to the left of the right edge of the first plate 302. That is, at this time, the first opposing area is greater than 0 and less than the third opposing area. x0 is the length of the first part 312 and the third part 314 directly opposite each other when the movable plate 304 is in its initial position. The initial position is the position of the movable plate 304 when no external force is applied.

[0063] Also refer to Figure 5 and Figure 10When the user rotates the rocker arm cap 210 to the maximum angle along the first direction X, the movable plate 304, driven by the slider 301, is at its left limit along the first direction X. The left limit is the leftmost position that the movable plate 304 can reach in the first direction X. At this time, the left edge of the movable plate 304 is to the right of the left edge of the first plate 302, and the left edge of the movable plate 304 is to the left of the right edge of the first plate 302. That is to say, the first facing area is greater than 0 and less than the third facing area, and the second facing area is greater than 0 and less than the fourth facing area. L The length of the first part 312 and the third part 314 directly opposite each other when the movable plate 304 is in the left extreme position.

[0064] Also refer to Figure 5 and Figure 11 When the user rotates the rocker arm cap 210 to the maximum angle along the first direction X, the movable plate 304, driven by the slider 301, is at its right limit along the first direction X. The right limit is the rightmost position that the movable plate 304 can reach in the first direction X. At this time, the left edge of the movable plate 304 is to the left of the right edge of the first plate 302, and the left edge of the movable plate 304 is to the right of the left edge of the first plate 302. That is to say, the first facing area is greater than 0 and less than the third facing area. R The length of the first part 312 and the third part 314 directly opposite each other when the movable plate 304 is in the right extreme position.

[0065] In the above situation, the second opposing area is equal to the fourth opposing area, which can ensure that the second opposing area does not change with the movement of the movable plate 304, so as to ensure that the second capacitance is a constant value, so that the capacitance between the first plate 302 and the second plate 303 is affected by the first capacitance, and the first capacitance has a linear relationship with the first opposing area, thereby making the capacitance between the first plate 302 and the second plate 303 have a linear relationship with the first opposing area, which can make the subsequent signal processing process simpler.

[0066] Figure 12 for Figure 9 A top-view structural diagram.

[0067] Also refer to Figure 9 and Figure 12 In some embodiments, in the preset direction Z, the top surface of the movable electrode 304 is not lower than the top surface of the first electrode 302, the top surface of the movable electrode 304 is not lower than the top surface of the second electrode 303, the bottom surface of the movable electrode 304 is not higher than the bottom surface of the first electrode 302, and the bottom surface of the movable electrode 304 is not higher than the bottom surface of the second electrode 303.

[0068] The preset direction Z can be Figure 9 The direction perpendicular to the paper and inwards.

[0069] Understandable Figure 12 The illustration shows the situation where the top surface of the movable electrode 304 coincides with the top surface of the first electrode 302, and the bottom surface of the movable electrode 304 coincides with the bottom surface of the first electrode 302. The top surface of the movable electrode 304 can also be higher than the top surface of the first electrode 302, and the bottom surface of the movable electrode 304 can also be lower than the bottom surface of the first electrode 302.

[0070] refer to Figure 8 , Figure 9 and Figure 12 In some embodiments, the capacitance between the first electrode 302 and the second electrode 303 satisfies:

[0071]

[0072] Where C is the capacitance between the first electrode 302 and the second electrode 303, ε is the dielectric constant of air, L0 is the width of the first electrode 302 and the movable electrode 304 facing each other, x is the length of the first part 312 and the movable electrode 304 facing each other, L1 is the length of the second electrode 303 and the movable electrode 304 facing each other, and d0 is the distance between the first electrode 302 and the movable electrode 304.

[0073] Since the capacitance formula between two parallel plates is:

[0074]

[0075] Where ε is the dielectric constant of air, S is the area between the two plates, and d is the distance between the plates.

[0076] According to Equation 2, the first capacitor C1 and the second capacitor C2 are respectively:

[0077]

[0078]

[0079] Wherein, C1 is the capacitance between the first part 312 and the third part 314, C2 is the capacitance between the fourth part 324 and the second electrode 303, ε is the dielectric constant of air, L0 is the width of the first electrode 302 and the movable electrode 304 facing each other, x is the length of the first part 312 and the movable electrode 304 facing each other, L1 is the length of the second electrode 303 and the movable electrode 304 facing each other, and d0 is the distance between the first electrode 302 and the movable electrode 304.

[0080] The formula for a multi-capacitor series structure is:

[0081] 1 / C4 = 1 / C2 + 1 / C3 (Equation 5) Where C is the capacitance value of the series capacitor formed by the second and third capacitors, which can be obtained from equations 3, 4 and 5:

[0082]

[0083] In Equation 1, ε, L0, L1, and d0 are all constants, and x is the length of the fifth part 314 directly opposite the first electrode 302. When the rocker arm 200 rotates and drives the movable electrode 304 to move, the capacitance of the first electrode 302 and the second electrode 304 changes with the change of x. Thus, the capacitance of the first electrode 302 and the second electrode 304 has a linear relationship with the length of the first part 312 directly opposite the third part 314, which makes the subsequent signal processing process simpler.

[0084] Understandably, x R <x<x L This ensures that when the movable plate 304 moves along the first direction X, x will change, meaning that when the movable plate 304 moves, the capacitance between the first plate 302 and the second plate 303 can change. Thus, the control unit can determine the rotation angle of the rocker arm 200 based on the capacitance between the first plate 302 and the second plate 303.

[0085] In some embodiments, the first electrode plate 302 and the second electrode plate 303 can be located on the same circuit board. Compared with the scheme of placing the first electrode plate 302 and the second electrode plate 303 on two different circuit boards to achieve electrical connection between the first electrode plate 302 and the second electrode plate 303 and the main circuit, placing the first electrode plate 302 and the second electrode plate 303 on the same circuit board only requires electrical connection of the circuit board to the main circuit, which can save the manufacturing cost of the rocker arm device.

[0086] It should be noted that in this embodiment, both the first electrode plate 301 and the second electrode plate 302 need to be electrically connected to the circuit board, while the movable electrode plate 304 does not need to be electrically connected to the circuit board. Compared with using the electrode plate that needs to be electrically connected to the circuit board as a movable part connected to the rocker arm 200, using the first electrode plate 301 and the second electrode plate 302 that need to be electrically connected to the circuit board as fixed parts and the movable electrode plate 304 that does not need to be electrically connected to the circuit board as a movable part can ensure the reliability of the electrical connection of the first electrode plate 301 and the second electrode plate 302 that need to be electrically connected to the circuit board, thereby improving the reliability of the rocker arm device.

[0087] The control unit is used to detect the capacitance value between the first electrode plate 302 and the second electrode plate 303, and output the rotation angle of the rocker arm 200 according to the capacitance value between the first electrode plate 302 and the second electrode plate 303.

[0088] The control unit can be a central processing unit or a microcontroller unit, etc.

[0089] Figure 13 This is a schematic diagram of another partial structure of the sensing component provided in an embodiment of this disclosure. Figure 14 for Figure 13 A top-view structural diagram.

[0090] Also refer to Figure 13 and Figure 14 In some embodiments, the first electrode plate 302 includes two mutually separate first differential electrode plates 332 and second differential electrode plates 342. The first differential electrode plates 332 and second differential electrode plates 342 are both located on the same side as the second electrode plate 303, and the second electrode plate 303 is located between the first differential electrode plates 332 and the second differential electrode plates 342. The area of ​​the movable electrode plate 304 facing the first differential electrode plate 332 is the fifth facing area, the area of ​​the first differential electrode plate 332 facing the movable electrode plate 304 is the sixth facing area, the area of ​​the movable electrode plate 304 facing the second differential electrode plate 342 is the seventh facing area, and the area of ​​the second differential electrode plate 342 facing the movable electrode plate 304 is the eighth facing area. The fifth facing area is greater than 0 and less than the sixth facing area, and the seventh facing area is greater than 0 and less than the eighth facing area.

[0091] The first differential plate 332 and the second plate 303 form the third capacitor, and the second differential plate 342 and the second plate 303 form the fourth capacitor. The capacitance values ​​of the third capacitor and the fourth capacitor can be referred to Equation 1 respectively.

[0092] When the joystick 200 rotates, causing the movable plate 304 to move to the left along the first direction X, according to the above analysis, the third capacitor will increase and the fourth capacitor will decrease. When the joystick 200 rotates, causing the movable plate 304 to move to the right along the first direction X, the third capacitor will decrease and the fourth capacitor will increase.

[0093] Referring to Equation 6, by adjusting the ratio and difference between the third and fourth capacitors, it is possible to correct environmental and dimensional errors and improve sensitivity.

[0094]

[0095] Where K is the proportional coefficient of the third and fourth capacitors, C3 is the capacitance value of the first differential plate 332 and the second plate 303 after an external force is applied to the rocker arm 200, and C 30 C4 represents the capacitance between the first differential plate 332 and the second plate 303 when no external force is applied to the joystick 200, and C4 represents the capacitance between the second differential plate 342 and the second plate 303 after an external force is applied to the joystick 200. 40 This is the capacitance value between the second differential plate 342 and the second plate 303 when no external force is applied to the joystick 200.

[0096] When environmental factors affect C3 and C4, they will also affect C. 30 And C 40 For C3 and C 30 Divide C4 and C 40 By subtracting the values ​​and then comparing them, the influence of environmental factors or dimensional errors on the third and fourth capacitors can be eliminated, thereby improving the sensitivity and reliability of detecting the rocker's rotation angle.

[0097] When the joystick 200 rotates, causing the movable plate 304 to move to the left along the first direction X, as analyzed above, the third capacitor increases and the fourth capacitor decreases, thus increasing the value of K. When the joystick 200 rotates, causing the movable plate 304 to move to the right along the first direction X, the third capacitor decreases and the fourth capacitor increases, thus decreasing the value of K. Therefore, the rotation angle of the joystick 200 can be determined based on the value of K.

[0098] The fifth facing area is greater than 0 and less than the sixth facing area, and the seventh facing area is greater than 0 and less than the eighth facing area. This ensures that when the movable plate 304 moves along the first direction X, the fifth and seventh facing areas can change. The fifth facing area affects the size of the third capacitor, and the seventh facing area affects the size of the fourth capacitor. As a result, the proportional coefficient of the third and fourth capacitors changes. That is, when the movable plate 304 moves, the proportional coefficient of the third and fourth capacitors will change. Thus, the control unit can determine the rotation angle of the rocker arm 200 based on the proportional coefficient of the third and fourth capacitors.

[0099] Figure 15 This is a partial top view of another rocker arm device provided in an embodiment of the present disclosure.

[0100] refer to Figure 15 In some embodiments, the joystick 200 includes a joystick cap 210, a first rod 230, and a second rod 240. The first rod 230 is movable along a first direction X to make the joystick cap 210 movable in the first direction X, and the second rod 240 is movable along a second direction Y to make the joystick cap 200 movable in the second direction Y. The first direction X is perpendicular to the second direction Y. The joystick 200 device includes two sensing components 300. The first rod 230 is connected to one sensing component 300 for detecting the movement angle of the joystick 200 in the first direction X, and the second rod 240 is connected to one sensing component 300 for detecting the movement angle of the joystick 200 in the second direction Y.

[0101] The joystick cap 210 is used by the user to move the joystick 200.

[0102] The joystick 200 also includes a pivot (not shown), which is a fixed component that is fixedly connected to the housing and serves as the fulcrum of the joystick 200.

[0103] The first rod 230 is movable along the first direction X, and the second rod 240 is movable along the second direction Y, with the first direction X and the second direction Y being perpendicular. The first rod 230 moves along the first direction X to make the rocker cap 210 movable in the first direction X, and the second rod 240 moves along the second direction Y to make the rocker cap 210 movable in the second direction Y, allowing the rocker cap 210 to rotate within the plane of the first direction X and the second direction Y. That is, the rocker 200 can rotate within the plane of the first direction X and the second direction Y. Furthermore, a sensing component 300 is connected to both the first rod 230 and the second rod 240, so that the rotation angle of the rocker 200 in the first direction X can be detected, the rotation angle of the rocker 200 in the second direction Y can be detected, and consequently, the rotation angle of the rocker 200 within the plane of the first direction X and the second direction Y can be detected.

[0104] In the aforementioned rocker arm device, rotation of the rocker arm adjusts the size of the first opposing area, causing a change in the capacitance between the first and second plates. The angle of rotation of the rocker arm can be obtained based on the capacitance value between the first and second plates. Compared to related technologies that use Hall effect sensors to detect the rocker arm rotation angle, the control unit detects the capacitance value between the first and second plates. The detection result is less susceptible to external interference, thus improving the reliability of detecting the rocker arm rotation angle. Furthermore, different rocker arm rotation angles result in different first and second opposing areas, leading to different capacitance values ​​detected by the control unit. This ensures that the control unit can detect any rotation of the rocker arm, thereby improving the sensitivity of the rocker arm rotation angle detection. The first and second plates are located on the same side of the slider, which facilitates electrical connection between the first and second plates and the main circuit, reducing the manufacturing cost of the rocker arm device.

[0105] Accordingly, another embodiment of this disclosure also provides a handle having the rocker arm device of any of the above embodiments. For parts that are the same as or corresponding to the previous embodiment, please refer to the corresponding descriptions of the foregoing embodiments, which will not be repeated in detail below.

[0106] The controller can be a game controller.

[0107] Those skilled in the art will understand that the above embodiments are specific examples of implementing this disclosure, and in practical applications, various changes in form and detail may be made without departing from the spirit and scope of this disclosure. Any person skilled in the art can make various alterations and modifications without departing from the spirit and scope of this disclosure; therefore, the scope of protection of this disclosure should be determined by the scope defined in the claims.

Claims

1. A rocker arm device, characterized in that, include: case; A joystick, which is movably connected to the housing; A sensing component includes a slider, a first electrode plate, and a second electrode plate. The slider is located inside a housing and is fixedly connected to a movable electrode plate. The first electrode plate and the second electrode plate are both located on the same side of the slider away from the rocker arm and are fixed inside the housing. The movable electrode plate and the first electrode plate have a first facing area, and the movable electrode plate and the second electrode plate have a second facing area. The slider is connected to the rocker arm, and the movement of the rocker arm causes the slider to move within the housing, thereby increasing or decreasing the first facing area, while the second facing area remains unchanged. A control unit, connected to the first electrode plate and the second electrode plate, is used to detect the capacitance value between the first electrode plate and the second electrode plate, and output the angle information of the joystick according to the capacitance value between the first electrode plate and the second electrode plate; The first electrode plate includes: a first portion, which is the portion of the first electrode plate directly opposite the movable electrode plate; a second portion, which is the remaining portion of the first electrode plate excluding the first portion; the movable electrode plate includes: a third portion, which is the portion of the movable electrode plate directly opposite the first electrode plate; a fourth portion, which is the portion of the movable electrode plate directly opposite the second electrode plate; and a fifth portion, which is the remaining portion of the movable electrode plate excluding the third and fourth portions; the first portion and the third portion constitute a first capacitor, the fourth portion and the second electrode plate constitute a second capacitor, the first capacitor and the second capacitor are connected in series to form a series capacitor, and the capacitance value between the first electrode plate and the second electrode plate is the capacitance value of the series capacitor.

2. The rocker arm device according to claim 1, characterized in that, The area directly opposite the first electrode plate and the movable electrode plate is the third opposing area, and the area directly opposite the second electrode plate and the movable electrode plate is the fourth opposing area; wherein, the first opposing area is greater than 0 and less than the third opposing area, and the second opposing area is equal to the fourth opposing area.

3. The rocker arm device according to claim 2, characterized in that, The movable electrode plate is located on the surface of the slider near the first electrode plate and the second electrode plate.

4. The rocker arm device according to claim 3, characterized in that, In a preset direction, the top surface of the movable electrode plate is not lower than the top surface of the first electrode plate, the top surface of the movable electrode plate is not lower than the top surface of the second electrode plate, the bottom surface of the movable electrode plate is not higher than the bottom surface of the first electrode plate, and the bottom surface of the movable electrode plate is not higher than the bottom surface of the second electrode plate.

5. The rocker arm device according to claim 4, characterized in that, The capacitance between the first plate and the second plate satisfies: Where C is the capacitance between the first electrode and the second electrode, ε is the dielectric constant of air, L0 is the width of the first electrode and the movable electrode directly opposite each other, x is the length of the first part and the movable electrode directly opposite each other, L1 is the length of the second electrode and the movable electrode directly opposite each other, and d0 is the distance between the first electrode and the movable electrode.

6. The rocker arm device according to claim 1, characterized in that, The first electrode plate and the second electrode plate are located on the same circuit board.

7. The rocker arm device according to claim 1, characterized in that, The first electrode plate includes: Two mutually independent first differential plates and second differential plates are provided. Both the first and second differential plates are located on the same side as the second plate, and the second plate is located between the first and second differential plates. The area of ​​the movable plate directly opposite the first differential plate is the fifth opposing area. The area of ​​the first differential plate directly opposite the movable plate is the sixth opposing area. The area of ​​the movable plate directly opposite the second differential plate is the seventh opposing area. The area of ​​the second differential plate directly opposite the movable plate is the eighth opposing area. The fifth opposing area is greater than 0 and less than the sixth opposing area. The seventh opposing area is greater than 0 and less than the eighth opposing area.

8. The rocker arm device according to any one of claims 1-7, characterized in that, The joystick includes a joystick cap, a first rod body, and a second rod body. The first rod body is movable along a first direction so that the joystick cap is movable in the first direction. The second rod body is movable along a second direction so that the joystick cap is movable in the second direction. The first direction is perpendicular to the second direction. The joystick device includes two sensing components. The first rod is connected to one of the sensing components for detecting the movement angle of the joystick in the first direction, and the second rod is connected to one of the sensing components for detecting the movement angle of the joystick in the second direction.

9. A handle, characterized in that, Includes the rocker arm device as described in any one of claims 1 to 8.

Images