Input Device and Electronic Product

Abstract

The present invention provides an input device and an electronic product. The input device includes a rotating base, a first sensing sheet connected to the rotating base, a second sensing sheet connected to the rotating base, and a rotating button capable of being electrically conducted with a human body. There is a first capacitance between the first sensing sheet and a capacitance sensing device. The first capacitance can be changed when the first sensing sheet makes a circular motion, so that the capacitance sensing device can obtain a first instruction. There is a second capacitance between the second sensing sheet and the capacitance sensing device. The rotating button has a first working position spaced from the second sensing sheet and a second working position electrically conducted with the second sensing sheet. The second capacitance can be changed when a human body touches the rotating button and the rotating button is in the second working position, so that the capacitance sensing device can obtain a second instruction. This input device facilitates the user to accurately input an instruction to the capacitance sensing device and avoids the user being distracted due to viewing the capacitance sensing device during driving.

Description

Technical Field

[0001] The present invention belongs to the technical field of input devices, and particularly relates to an input device and an electronic product. Background Art

[0002] With the popularization of touch virtual input methods, physical input devices still have their advantages and unique functions. By operating the physical input device, users can obtain a more substantial operation experience and reduce input errors that may occur through touch screen input. Currently, capacitive sensing devices have been widely used in vehicle-mounted input devices. However, during driving, if a user wants to input commands by operating a capacitive sensing device, they need to distractedly check the option positions and perform touch screen operations, which poses a safety hazard during driving and is not convenient for users to input commands. Summary of the Invention

[0003] The purpose of the present invention is to provide an input device and an electronic product, aiming to solve the technical problems in the prior art that capacitive sensing devices are not convenient for users to input commands and easily cause users to be distracted during driving.

[0004] The present invention is implemented as follows. An input device is used to connect to a capacitive sensing device, and the capacitive sensing device is used to sense static capacitance. The input device includes:

[0005] A rotating base, which is disposed opposite to the capacitive sensing device and can rotate around its central axis;

[0006] A first sensing sheet, which is connected to the rotating base and is spaced from the capacitive sensing device. A first capacitance exists between the first sensing sheet and the capacitive sensing device. The first sensing sheet can make a circular motion around the central axis as the rotating base rotates, and the first capacitance can change when the first sensing sheet makes a circular motion, so that the capacitive sensing device can obtain a first command;

[0007] A second sensing sheet, which is connected to the rotating base and is spaced from the capacitive sensing device. A second capacitance exists between the second sensing sheet and the capacitive sensing device;

[0008] A rotating button, which can be electrically conducted with the human body and has a first working position spaced from the second sensing sheet and a second working position electrically conducted with the second sensing sheet. The rotating button can reciprocate between the first working position and the second working position;

[0009] Wherein, the second capacitance can change when the human body touches the rotating button and the rotating button is in the second working position, so that the capacitive sensing device can obtain a second command.

[0010] Further, the rotary button is slidably connected to the rotary base and can move toward or away from the capacitive sensing device, and the second operating position is located between the first operating position and the capacitive sensing device.

[0011] Furthermore, the rotating button is electrically connected to the first sensing sheet, the first sensing sheet has a closed state when a human body does not touch the rotating button, and an open state in which the first capacitance changes due to a human body touching the rotating button, and the first sensing sheet can input the first instruction to the capacitive sensing device when making a circular motion and in the open state.

[0012] Furthermore, the input device also includes a fixed base connected to the capacitive sensing device, and the rotating base is rotatably connected to the fixed base.

[0013] Furthermore, the fixed base is ring-shaped, the rotating base is sleeved on the fixed base, and the rotating button is arranged on a side of the rotating base away from the capacitive sensing device.

[0014] Furthermore, the input device also includes a first elastic member for connecting and electrically conducting the rotation button and the first sensor sheet, the first elastic member having a compressed state in which an external force is applied and the rotation button is in a second working position, and a released state in which the external force is removed and the rotation button is in the first working position.

[0015] Furthermore, the rotating base is provided with a ring-shaped extending receiving groove toward the capacitive sensing device, the rotating button cover is arranged in the receiving groove, and the input device also includes a second elastic member for connecting the rotating base and the rotating button, the second elastic member is conductive and electrically connected with the rotating button, and the first elastic member and the second elastic member are both located in the receiving groove.

[0016] Furthermore, the input device also includes a contact piece connected to the second elastic member and electrically connected to the rotary button. The rotating base can drive the contact piece to move toward the second sensing piece when moving from the first working position to the second working position, and make the contact piece electrically connected to the second sensing piece when in the second working position.

[0017] Furthermore, a plurality of positioning grooves are circumferentially provided on the outer ring wall of the fixed base, and the plurality of positioning grooves are circumferentially spaced apart from each other on the outer ring wall of the fixed base. The input device also includes a positioning member connected to the inner ring wall of the rotating base and adapted to the positioning grooves. The positioning member includes a positioning block adapted to the positioning groove and a third elastic member for connecting the positioning block and the inner ring wall of the rotating base.

[0018] The present invention also provides an electronic product, including a capacitive sensing device and the input device as described above.

[0019] The technical effect of the present invention compared with the prior art is as follows: By providing a rotating base that can rotate around the central axis in the input device of the present invention, the first sensing sheet can perform a circular motion as the rotating base rotates. There is a first capacitance between the first sensing sheet and the capacitive sensing device. When the user rotates the rotating base, the first sensing sheet performs a circular motion, and the first capacitance changes due to the position movement of the first sensing sheet. The capacitive sensing device can obtain a first instruction by sensing the change in the first capacitance. There is a second capacitance between the second sensing sheet and the capacitive sensing device. The rotary button has a first operating position and a second operating position. When the user touches the rotary button and presses the rotary button from the first operating position to the second operating position, the rotary button is electrically connected to the second sensing sheet. Since the human body is electrically connected to the rotary button, the electric quantity of the second sensing sheet changes, resulting in a change in the second capacitance. The capacitive sensing device can obtain a second instruction by sensing the change in the second capacitance. This input device facilitates the user to accurately input instructions to the capacitive sensing device and avoids the user being distracted due to viewing the capacitive sensing device during driving. Description of the Drawings

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required for use in the embodiments of the present invention or the description of the prior art. Obviously, the following described drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0021] Figure 1 is a three-dimensional structure diagram of the input device provided by the embodiment of the present invention;

[0022] Figure 2 is an exploded view of the input device provided by the embodiment of the present invention;

[0023] Figure 3 is a cross-sectional view of a section of the input device provided by the embodiment of the present invention;

[0024] Figure 4 is a cross-sectional view of another section of the input device provided by the embodiment of the present invention.

[0025] Description of the Reference Numerals:

[0026] 10. Rotating base; 101. Accommodating groove; 102. Sliding groove; 20. Rotating button; 21. Sliding connection block; 30. Fixed base; 301. Positioning groove; 40. First sensing piece; 50. Second sensing piece; 61. First elastic member; 62. Second elastic member; 63. Contact piece; 64. Dome switch; 70. Positioning member; 71. Positioning block; 72. Third elastic member; 80. Limiting member Detailed implementation manner

[0027] The embodiments of the present invention will be described in detail below. The examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0028] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "length", "width", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.

[0029] In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, "a plurality" means two or more unless otherwise specifically defined.

[0030] In the present invention, unless otherwise clearly defined and limited, the terms "installation", "connection", "connection", "fixation", etc. should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the internal communication of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] In order to make the purpose, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0032] The embodiment of the present invention provides an input device for connecting a capacitance sensing device, and the capacitance sensing device is used for sensing the static capacitance. In the embodiment of the present invention, the capacitance sensing device is a touch screen.

[0033] Please refer to Figure 1 and Figure 2 , the input device includes a rotating base 10 disposed opposite to a capacitive sensing device, a fixed base 30 connected to the rotating base 10, a first sensing piece 40 connected to the rotating base 10, a second sensing piece 50 connected to the rotating base 10, a rotating button 20 that can be electrically conducted with the human body, a first elastic member 61 for connecting and electrically conducting the rotating button 20 and the first sensing piece 40, a second elastic member 62 for connecting the rotating button 20 and the rotating base 10, a contact piece 63 connected to the second elastic member 62 and electrically conducted with the rotating button 20, a dome switch 64 connected to the contact piece 63, a positioning member 70 connected to the rotating base 10 and abutting against the fixed base 30, and a limiting member 80 sleeved on the first elastic member 61 and / or the second elastic member 62.

[0034] Among them, please refer to Figure 2 , the rotating base 10 can rotate around its central axis. Both the first sensing piece 40 and the second sensing piece 50 can make circular motions around the central axis as the rotating base 10 rotates. There is a first capacitance between the first sensing piece 40 and the capacitive sensing device, and a second capacitance between the second sensing piece 50 and the capacitive sensing device. Both the first sensing piece 40 and the second sensing piece 50 are preferably disposed on the side of the rotating base 10 facing the capacitive sensing device to prevent the rotating base 10 from blocking the capacitive sensing device from sensing the first capacitance and the second capacitance. Preferably, the rotating base 10 includes a screwing portion for screwing and a base portion for connecting the first sensing piece 40 and the second sensing piece 50.

[0035] The first sensing piece 40 and the capacitive sensing device, and the second sensing piece 50 and the capacitive sensing device are preferably spaced apart. In this way, not only can the stability of the first capacitance be maintained, but also the capacitive sensing device can be prevented from being pressed or knocked to cause misoperation. The first capacitance can change when the first sensing piece 40 makes a circular motion, so that the capacitive sensing device can obtain a first instruction. At this time, neither the first sensing piece 40 nor the second sensing piece 50 has any direct electrical contact with the capacitive sensing device, and it is non-contact. The capacitive sensing device issues a first instruction based on the change of the first capacitance. The change of the first capacitance can be caused by the change of the position of the first sensing piece 40, the change of the distance between the first sensing piece 40 and the capacitive sensing device, or whether the first sensing piece 40 is grounded. The capacitive sensing device can obtain the change information of the rotation action, movement direction or movement amplitude of the first sensing piece 40 through the change of the first capacitance, so as to obtain different first instructions to realize the diversification of operation commands.

[0036] The rotary button 20 has a first working position spaced from the second induction sheet 50 and a second working position electrically connected to the second induction sheet 50. The rotary button 20 can reciprocate between the first working position and the second working position. The rotary button 20 is preferably slidably connected to the rotary base 10 so that the movement path of the rotary button 20 is fixed. The second induction sheet 50 is located on the sliding path of the rotary button 20 to prevent the contact with the second induction sheet 50 from shifting. When the rotary button 20 slides, the position of the rotary base 10 remains unchanged, that is, the position of the second induction sheet 50 remains unchanged. More preferably, the rotary button 20 can move towards or away from the capacitive sensing device, and the second working position is located between the first working position and the capacitive sensing device. This is more in line with the user's usage habits. The rotary button 20 moves from the first working position to the second working position by the user's pressing operation.

[0037] Wherein, the second capacitance can change when the human body touches the rotary button 20 and the rotary button 20 is in the second working position, so that the capacitive sensing device obtains a second instruction. The change of the second capacitance is caused by the change of the electric quantity of the second induction sheet 50 itself after being touched by the human body. To achieve the electrical connection of the rotary button 20, the rotary button 20 is made of a conductive metal material.

[0038] The input device of the present invention is provided with a rotary base 10 that can rotate around the central axis, so that the first induction sheet 40 can make a circular motion as the rotary base 10 rotates. There is a first capacitance between the first induction sheet 40 and the capacitive sensing device. When the user rotates the rotary base 10, the first induction sheet 40 makes a circular motion, and the first capacitance changes due to the position movement of the first induction sheet 40. The capacitive sensing device can obtain a first instruction by sensing the change of the first capacitance. There is a second capacitance between the second induction sheet 50 and the capacitive sensing device. The rotary button 20 has a first working position and a second working position. When the user touches the rotary button 20 and presses the rotary button 20 from the first working position to the second working position, the rotary button 20 is electrically connected to the second induction sheet 50. Due to the electrical connection between the human body and the rotary button 20, the electric quantity of the second induction sheet 50 changes, resulting in the change of the second capacitance. The capacitive sensing device can obtain a second instruction by sensing the change of the second capacitance. This input device facilitates the user to accurately input instructions to the capacitive sensing device and avoids the user being distracted due to viewing the capacitive sensing device during driving.

[0039] This input device controls the capacitive sensing device to obtain the first instruction or the second instruction through the first capacitance and the second capacitance. There is no electrical contact between it and the capacitive sensing device. Therefore, no external power supply or wire installation is required, and no power supply is needed, saving the process cost and having a simple structure and being easy to process.

[0040] Specifically, the first instruction may be a calibration parameter value. In one embodiment, when the first sensing sheet 40 rotates clockwise relative to the capacitance sensing device, the capacitance sensing device obtains an instruction to increase a certain parameter, and when rotating counterclockwise, the capacitance sensing device obtains an instruction to decrease a certain parameter, where the certain parameter may be volume, temperature, brightness, etc. In another embodiment, the capacitance sensing device may obtain an instruction to input a certain value based on the relative position of the first sensing sheet 40 on its rotation trajectory. When the first sensing sheet 40 moves from one position to another, the capacitance sensing device switches the certain value to the input of another value. It should be noted that the first instruction includes but is not limited to the above embodiments.

[0041] Specifically, the second instruction may be to switch the parameter type. In this embodiment, when the rotary button 20 moves from the first position to the second position, the capacitance sensing device obtains an instruction to switch the volume adjustment to the temperature adjustment. At this time, regardless of whether the user presses the rotary button 20, when rotating the rotary button 20, the adjustment will be performed with the value of the switched parameter type. It should be noted that the second instruction includes but is not limited to the above embodiments.

[0042] In this way, this input device realizes the transmission of multiple instructions through two different operation methods of pressing and screwing, and at the same time realizes the switching of parameter types and the calibration of parameter values. This input device differentiates the achievable functions through different operation actions, preventing misoperation caused by the same pressing operation, and also avoiding the cumbersome recognition process brought to the user by the single operation method of one key for one function.

[0043] Preferably, the rotary button 20 is always electrically connected to the first sensing sheet 40. The first sensing sheet 40 has a closed state when not touched by the human body and an open state in which the first capacitance changes due to the human body touching the rotary button 20. The first sensing sheet 40 can input the first instruction to the capacitance sensing device when making a circular motion and being in the open state. It can be understood that the human body's touch on the rotary button 20 can realize the switching of the first sensing sheet 40 from the closed state to the open state. When the human body leaves the rotary button 20, the first sensing sheet 40 switches from the open state to the closed state. The human body's contact with the rotary button 20 enables the human body to be electrically connected to the first sensing sheet 40, so that the electric quantity of the first sensing sheet 40 changes, and the capacitance between the first sensing sheet 40 and the capacitance sensing device changes accordingly. The capacitance sensing device knows that the first sensing sheet 40 is in the open state by sensing this change. At this time, the capacitance sensing device enters the standby working state and starts to sense the first capacitance and the change of the first capacitance.

[0044] A plurality of first sensing sheets 40 and second sensing sheets 50 may be provided, so that the normal operation of this input device will not be affected even if one of them has poor contact.

[0045] The fixed base 30 can be optionally pasted on the capacitive sensing device or fixed to other devices. Please refer to Figure 1 , the fixed base 30 is preferably annular, so that the middle hole part of the fixed base 30 penetrates through to the capacitive sensing device. When the capacitive sensing device is a touch screen, the user can also perform touch screen operations or view display information through the middle hole. In other embodiments, a transparent plate can be provided in the middle hole part, so that while the user can control the touch screen or view display information, the connection area between the fixed base 30 and the touch screen is increased. Among them, the thickness of the transparent plate should not affect the user's touch on the touch screen.

[0046] Please refer to Figure 2 and Figure 4 , the rotating base 10 is sleeved on the outer wall of the fixed base 30, and the outer wall surface of the rotating base 10 is a rough surface, so as to facilitate the user's rotation operation and increase the friction between the finger and the rotating base 10. The rotary button 20 protrudes from the side of the rotating base 10 facing away from the capacitive sensing device, so as to facilitate the user's pressing operation. Preferably, the rotating base 10 is provided with a receiving groove 101 facing the capacitive sensing device. The receiving groove 101 extends along the axial direction of the rotating base 10 and is annular. The rotary button 20 covers the receiving groove 101 to prevent water or dust from falling into the receiving groove 101. A sliding groove 102 extending along the opening direction is provided on the inner side wall of the receiving groove 101. The rotary button 20 is provided with a sliding block 21 slidably connected to the sliding groove 102. The width of the sliding block 21 is adapted to the sliding groove 102, so that the rotating base 10 can drive the rotary button 20 to rotate. The head and tail ends of the sliding groove 102 are the movement end points of the sliding block 21, preventing the rotary button 20 from slipping off the rotating base 10.

[0047] Please refer to Figure 2 , the connection line between the first sensing piece 40 and the second sensing piece 50 preferably intersects with the central axis, that is, the first sensing piece 40 and the second sensing piece 50 are arranged at two opposite positions of the rotating base 10, so that the distance between the two is the farthest, so as to avoid large interference or error in the capacitive sensing of the capacitance of the two by the capacitive sensing device.

[0048] Please refer to Figure 2 and Figure 3, the first elastic member 61 is located within the receiving groove 101, with one end thereof connected to the rotary button 20 and the other end connected to the first sensing piece 40. The first elastic member 61 has a compressed state in which an external force is applied and the rotary button 20 is in the second operating position, and a released state in which the external force is removed and the rotary button 20 is in the first operating position. When the user presses the rotary button 20 and moves it from the first operating position to the second operating position, the first elastic member 61 is in a compressed state. When the user removes the external force, the first elastic member 61 switches from the compressed state to the released state, and the rotary button 20 automatically returns from the second operating position to the first operating position under the action of the elastic restoring force. The first elastic member 61 facilitates the user's operation of the rotary button 20. In this way, the first elastic member 61 rotates simultaneously with the rotary base 10 and the rotary button 20. The existing transmission structure for connecting the rotary button 20 and the first sensing piece 40 is usually provided between the fixed base 30 and the rotary base 10, which often increases the friction between the rotary base 10 and the fixed base 30 when the rotary base 10 rotates, resulting in difficult rotation. However, the setting of the first elastic member 61 rotating synchronously with the rotary button 20 and the rotary base 10 in the embodiment of the present invention reduces the friction between the rotary base 10 and the fixed base 30, which is beneficial for the user to perform the screwing operation. The rotary button 20 covers the receiving groove 101, playing a role in waterproofing and dustproofing for the first elastic member 61. Accordingly, in this embodiment, the first sensing piece 40 is provided below the rotary base 10. In order not to hinder the rotation of the rotary base 10 relative to the fixed base 30, the first sensing piece 40 is located outside the fixed base 30 and is axially offset from the fixed base 30.

[0049] Please refer to Figure 2 and Figure 3 , the second elastic member 62 is located within the receiving groove 101 and is used to support the rotary button 20, preventing the rotary button 20 from moving to the second operating position under the action of gravity without the user's control, which may cause misoperation. The second elastic member 62 also plays a role in driving the rotary button 20 to move from the second operating position to the first operating position.

[0050] Please refer to Figure 2, the second elastic member 62 has conductivity and is electrically connected to the rotary button 20. The contact piece 63 has a certain elasticity and is connected to the bottom of the receiving groove 101 and abuts against the second elastic member 62 to increase the electrical conduction area of the second elastic member 62. The dome switch 64 is electrically conductive and connected to the contact piece 63, and is spaced from the second induction piece 50. The wall of the receiving cavity is provided with a pressing block. When the rotary button 20 moves from the first working position to the second working position, the pressing block can press the dome switch 64 and abut the dome switch 64 against the second induction piece 50 to achieve electrical conduction between the rotary button 20 and the second induction piece 50. When the rotary button 20 returns from the second working position to the first working position under the action of the second elastic member 62, the pressing block moves away from the dome switch 64, and the dome switch 64 separates from the second induction piece 50 under the elastic restoring force of the contact piece 63. The dome switch 64 can be located on the extension line of the second elastic member 62 or be arranged out of alignment with the second elastic member 62 to prevent misoperation or affect the capacitance of the second induction piece 50.

[0051] Please refer to Figure 2 , preferably, both the first elastic member 61 and the second elastic member 62 are springs. Please refer to Figure 3 , the limiting member 80 is tubular and is provided in the receiving groove 101. Both the first elastic member 61 and the second elastic member 62 are located within the limiting member 80. The limiting member 80 plays a limiting role on the first elastic member 61 and the second elastic member 62, preventing them from being bent and deformed, so that they have better supporting force.

[0052] Please refer to Figure 2 , preferably, a plurality of positioning grooves 301 are circumferentially formed on the outer circumferential wall of the fixed base 30, and the plurality of positioning grooves 301 are spaced apart circumferentially along the outer circumferential wall of the fixed base 30. Please refer to Figure 2 and Figure 4 , the positioning member 70 is connected to the inner circumferential wall of the rotary base 10 and is adapted to the positioning groove 301. The positioning member 70 includes a positioning block 71 adapted to the positioning groove 301 and a second elastic member 62 for connecting the positioning block 71 to the inner circumferential wall of the rotary base 10. The positioning block 71 can be sequentially docked with a plurality of positioning grooves 301 during the rotation of the rotary base 10 through the compression and release of the second elastic member 62.

[0053] Please refer to Figure 4, the end face of the positioning block 71 facing the fixed base 30 is an arc surface, and the cross-section of the positioning groove 301 is also an arc. The arc setting plays a guiding role in preventing the positioning block 71 from sliding out of the positioning groove 301. When the user rotates the rotating base 10, the positioning block 71 slides out of the positioning groove 301, and the second elastic member 62 is compressed to generate an elastic restoring force that pushes the positioning block 71 to reset. When the positioning block 71 slides to the next positioning groove 301, the second elastic member 62 releases the elastic restoring force, and the positioning block 71 slides into the positioning groove 301 to be inserted into the positioning groove 301. The insertion of the positioning groove 301 and the positioning block 71 plays a positioning role for the rotating base 10, enabling the rotating base 10 to have multiple positioning points, enhancing the user's control and feel. In the embodiment of the present invention, 30 positioning grooves 301 are circumferentially formed in the fixed base 30, and the switching angle of each positioning point is 12°, realizing the fine adjustment of the rotating base 10.

[0054] The present invention also provides an electronic product, including a capacitance sensing device and the input device in the above embodiment. This input device has the same structural features as the input devices in the above embodiments and plays the same role, which will not be elaborated here.

[0055] The electronic product realizes multi-dimensional control of a single button by setting this input device. By setting the capacitance sensing device, a single sensing system is used to uniformly sense multi-dimensional input, and various actions of countless devices are distinguished through changes in capacitance to identify various commands. This electronic product can be applied to a vehicle-mounted system to facilitate users to accurately input commands.

[0056] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An input device for connecting to a capacitance sensing device for sensing electrostatic capacitance, characterized in that, include: A fixed base connected to the capacitive sensing device; A rotating base, arranged opposite to the capacitive sensing device and capable of rotating around its central axis, the rotating base being rotatably connected to the fixed base; A first sensing sheet, connected to the rotating base and spaced apart from the capacitive sensing device, a first capacitor being provided between the first sensing sheet and the capacitive sensing device, the first sensing sheet being capable of performing a circular motion around the central axis as the rotating base rotates, and the first capacitor being capable of changing when the first sensing sheet performs a circular motion, so that the capacitive sensing device acquires a first instruction; A second induction sheet connected to the rotating base and spaced apart from the capacitive sensing device, wherein a second capacitor is provided between the second induction sheet and the capacitive sensing device; a rotating button, slidably connected to the rotating base and capable of moving toward or away from the capacitive sensing device, the rotating button being electrically connected to the human body and having a first operating position spaced apart from the second sensing sheet and a second operating position electrically connected to the second sensing sheet, the rotating button being capable of reciprocating between the first operating position and the second operating position; The second capacitance can change when a human body touches the rotating button and the rotating button is in the second working position, so that the capacitance sensing device obtains a second instruction.

2. The input device according to claim 1, characterized in that, The second working position is located between the first working position and the capacitive sensing device.

3. The input device according to claim 1, characterized in that, The rotating button is electrically connected to the first sensing sheet, and the first sensing sheet has a closed state when a human body does not touch the rotating button, and an open state in which the first capacitance changes due to a human body touching the rotating button. The first sensing sheet can input the first instruction to the capacitive sensing device when making a circular motion and in the open state.

4. The input device according to claim 1, wherein The fixed base is ring-shaped, the rotating base is sleeved on the fixed base, and the rotating button is arranged on a side of the rotating base away from the capacitive sensing device.

5. The input device according to claim 1, characterized in that The input device also includes a first elastic member for connecting and electrically conducting the rotation button and the first sensing sheet, the first elastic member having a compressed state in which an external force is applied and the rotation button is in a second operating position, and a released state in which the external force is removed and the rotation button is in the first operating position.

6. The input device according to claim 5, characterized in that, The rotating base is provided with an annularly extending receiving groove toward the capacitive sensing device, and the rotating button cover is arranged in the receiving groove. The input device also includes a second elastic member for connecting the rotating base and the rotating button, the second elastic member is conductive and electrically connected with the rotating button, and the first elastic member and the second elastic member are both located in the receiving groove.

7. The input device according to claim 6, wherein The input device also includes a contact piece connected to the second elastic member and electrically connected to the rotation button. The rotating base can drive the contact piece to move toward the second sensing piece when moving from the first working position to the second working position, and make the contact piece electrically connected to the second sensing piece when in the second working position.

8. The input device according to claim 1, characterized in that, A plurality of positioning grooves are circumferentially formed in the outer circumferential wall of the fixed base, and the plurality of positioning grooves are arranged at intervals along the circumferential direction of the outer circumferential wall of the fixed base. The input device further includes a positioning member connected to the inner circumferential wall of the rotating base and adapted to the positioning grooves. The positioning member includes a positioning block adapted to the positioning grooves and a third elastic member for connecting the positioning block to the inner circumferential wall of the rotating base.

9. An electronic product, characterized in that, It includes a capacitive sensing device and the input device according to any one of claims 1 to 8.

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