Knob device and electronic equipment

Abstract

The embodiment of the utility model provides a knob device and electronic equipment. The knob device comprises a base, a knob and an inductance device; the knob is rotationally connected with the base and comprises a plurality of conductive parts, and the plurality of conductive parts are arranged at intervals in the circumferential direction of the knob; the inductive device is fixed to the base and comprises a plurality of inductive coils, the inductive coils are arranged in the circumferential direction of the rotary knob, and each inductive coil comprises N planar coils which are arranged in a stacked mode in the axial direction of the rotary knob; when the rotary knob rotates relative to the base, the area of an opposite area of the at least one conductive part and the at least one inductance coil in the axial direction of the rotary knob changes, the opposite area has the width L in the radial direction of the rotary knob, the distance S is formed between the conductive part and the inductance coil in the axial direction of the rotary knob, and the rotary knob device meets the condition that S is smaller than or equal to NL / 18. The knob device is high in detection accuracy.

Description

Technical Field

[0001] This application relates to the field of electronic product technology, specifically to a knob device and an electronic device. Background Technology

[0002] As a common control component in electronic devices, knobs allow users to interact with the device by rotating them. Therefore, accurately detecting these rotational movements is a key design consideration for knobs. Utility Model Content

[0003] This application provides a knob device and an electronic device. The knob device has high detection accuracy and provides a better user experience.

[0004] In a first aspect, embodiments of this application provide a knob device that can be applied to electronic devices. The knob device includes a base, a knob, and an inductor. The knob is rotatably connected to the base and includes multiple conductive elements arranged at intervals along the circumference of the knob. The inductor is fixed to the base and includes multiple inductor coils arranged along the circumference of the knob. Each inductor coil includes N planar coils stacked along the axial direction of the knob, where N is a positive integer.

[0005] When the knob rotates relative to the base, the area of ​​the area where at least one conductive element and at least one inductor coil face each other along the axial direction of the knob changes. The area where the conductive element and inductor coil face each other has a width L in the radial direction of the knob, and a distance S between the conductive element and inductor coil in the axial direction of the knob. The knob device satisfies: S≤NL / 18.

[0006] In this embodiment, when the area of ​​the conductive component and the inductor coil facing each other changes, the inductance of the inductor coil changes. Therefore, the change in the signal of the inductor coil can be used to feed back the change in the relative position of the conductive component and the inductor coil, thereby detecting the rotation of the knob relative to the base. The detection accuracy is high, which helps to improve the user experience. Moreover, the knob device has a simple structure, is easy to implement, and has a low cost.

[0007] The inductor consists of multiple stacked planar coils, all with the current flowing in the same direction when energized. This results in a large magnetic field strength, enabling sensitive detection of the knob's rotational movement. Furthermore, the distance S between the conductive element and the inductor, the width L of the area directly opposite the conductive element and the inductor, and the number N of the planar coils satisfy S≤NL / 18. This ensures that the conductive element significantly affects the inductance of the opposite inductor as the knob rotates, thereby improving the detection accuracy of the knob device.

[0008] In some possible embodiments, the number N of planar coils satisfies: 4 ≤ N ≤ 8. In this case, the inductor coil can have a strong magnetic field strength when energized to improve detection sensitivity, while its overall thickness can be controlled within a small range, which is beneficial for achieving the thinning of inductor devices and knob devices.

[0009] In some possible embodiments, multiple inductor coils of the inductor are formed on the same circuit board. In this case, the inductor is easier to manufacture, less expensive, and easier to implement.

[0010] In some possible embodiments, the conductive element has a width W1 in the radial direction of the knob, the inductor coil has a width W2 in the radial direction of the knob, and the knob device satisfies: W1≥W2≥L≥W2 / 2.

[0011] In this embodiment, by designing the width of the conductive component, the width of the inductor coil, and the width of their direct alignment, the knob and the matching base can be positioned directly opposite each other, thereby improving the detection accuracy of the knob device.

[0012] In some possible embodiments, the inductor further includes a magnetizing block embedded in the middle of the inductor coil. The magnetizing block is made of a magnetically conductive material. In this case, the magnetizing block can increase the magnetic field strength of the inductor coil, thereby improving the detection sensitivity. The magnetically conductive material can be silicon steel, iron powder, ferrite, permalloy, etc., and this application does not strictly limit this type of material.

[0013] In some possible embodiments, multiple conductive elements are arranged at equal intervals around the circumference of the knob. In this case, the knob of the knob device can rotate a full circle and has no limit to its position in the circumference, which helps to reduce the structural design difficulty of the knob device and also improves the user experience.

[0014] In some possible embodiments, the central angle of the conductive element is greater than or equal to the central angle of a single inductor coil, and the central angle of the gap between two adjacent conductive elements is greater than or equal to the central angle of a single inductor coil.

[0015] In some possible embodiments, the central angle of the conductive element is greater than or equal to the total central angle of the multiple inductors, and the central angle of the gap between two adjacent conductive elements is greater than or equal to the total central angle of the multiple inductors.

[0016] In this embodiment, when the knob rotates relative to the base, only one of the multiple conductive components significantly affects the inductance of the inductor, while the remaining conductive components have little or no effect on the inductor. This allows the signal changes of the inductor to accurately reflect the knob's rotation. The direction of knob rotation is determined by the signal changes of the multiple inductor coils. In some examples, the rotation angle can also be calculated to sense the user's rotational action, thus enabling interaction. The knob device is low-cost and highly accurate.

[0017] In some possible embodiments, the number of conductive elements is five or six, and / or the number of inductors is two or three. In this embodiment, by setting the position and number of conductive elements and inductors, not only can accurate detection be achieved during the rotation of the knob, but the smaller number of conductive elements and inductors also helps to reduce the cost of the knob device.

[0018] In some possible embodiments, the conductive element may be made of conductive materials such as copper, aluminum, silver, or gold, but this application does not impose strict limitations on this.

[0019] In some possible embodiments, the conductive element is formed in a circuit board, and at least part of the outer surface of the conductive element is covered by a dielectric layer. For example, the conductive element can be formed in a flexible circuit board, which includes a conductive layer and dielectric layers fixed to both sides of the conductive layer, and the conductive element can be formed in the conductive layer. In this embodiment, the conductive element is easy to manufacture, and the dielectric layer can protect the conductive element, enabling it to be waterproof and corrosion-resistant, thereby improving reliability and service life.

[0020] In some possible embodiments, the base includes a body and a protrusion, the protrusion being fixed to the body and projecting relative to the top surface of the body. A ring-shaped knob is located on the top side of the body and surrounds the protrusion, with multiple conductive elements located at the bottom of the knob. Inductive devices are located on the side of the body opposite to the knob.

[0021] In this embodiment, the knob is fitted onto the protrusion of the base and rotates around the protrusion. That is, the protrusion forms the rotation axis of the knob. The knob adopts a virtual axis rotation structure. The knob device does not need to set an additional rotation axis structure on the knob. Therefore, the structure of the knob device is relatively simple, and the overall structure can be set to a relatively flat structure, which is conducive to the thin design of the knob device.

[0022] For example, the conductive components can be in the form of a sheet, with the plane of arrangement of multiple conductive components perpendicular to the axis of the knob. The inductors are in the form of a plate, with the plane of arrangement of the inductors also perpendicular to the axis of the knob. In this embodiment, the conductive components and inductors have small dimensions along the axis of the knob, which is beneficial for the thin design of the knob device. Furthermore, since the conductive components are arranged at the bottom of the knob, they can reuse space in the vertical plane of the knob's axis, which is beneficial for the miniaturization design of the knob device.

[0023] In some possible embodiments, the knob device further includes a circuit board located on the side of the base facing away from the knob, with an inductor fixed to the surface of the circuit board facing the knob. For example, the inductor may be soldered to the surface of the circuit board.

[0024] In this embodiment, the inductor is located between the circuit board and multiple conductive parts along the axial direction of the knob. The spacing between the inductor and the multiple conductive parts is small, resulting in higher detection sensitivity of the inductor.

[0025] In some possible embodiments, the knob device further includes a plurality of first elastic elements, which are arranged at circumferential intervals along the knob. The first elastic elements are mounted on one of the protrusion and the knob and abut against the other.

[0026] In this embodiment, by connecting the knob and the protrusion with multiple first elastic elements, the risk of the knob tilting relative to the base can be reduced during the rotation of the knob relative to the base, making the rotation of the knob smoother and improving the user experience.

[0027] In some possible embodiments, the protrusion has a plurality of first grooves, the plurality of first grooves being arranged at intervals along the circumference of the knob, and a plurality of first elastic elements being installed in the plurality of first grooves in a corresponding manner.

[0028] In this embodiment, multiple first elastic elements are installed in the protrusion and abut against the knob. Compared to a solution where multiple first elastic elements are installed on the knob itself, the knob is lighter and the rotation is easier, which improves the user experience. Furthermore, by providing a first groove in the protrusion and installing the first elastic elements in the first groove, the stability of the relative position between the first elastic elements and the first groove can be improved, which also helps to increase the space utilization of the knob device.

[0029] In some possible embodiments, the first elastic element is an elastic ball component or an elastic pin component. In this case, the coefficient of friction between the first elastic element and the protrusion is relatively small, which helps to reduce the damping when the knob is rotated and improves the user experience.

[0030] In some possible embodiments, the knob device further includes a plurality of connectors arranged at intervals along the circumference of the knob, the connectors being balls or rollers. The connectors may be fixedly connected to one of the knob and the base, and slidably connected to the other; or, the connectors may be rotatably connected to both the knob and the base.

[0031] In this embodiment, multiple connectors are used to connect the knob and the base, which reduces the risk of the knob tilting relative to the base during rotation, making the knob rotation smoother and improving the user experience. Furthermore, the connectors are made of ball bearings or roller bearings, and the connectors are rolled or slidably connected to the knob and / or the base, which reduces damping during knob rotation relative to the base and further enhances the user experience.

[0032] In some possible embodiments, the knob further includes a plurality of second elastic elements, which are arranged at circumferential intervals along the knob. The second elastic elements are mounted on one of the knob and the base and abut against the other.

[0033] In this embodiment, the knob is elastically connected to the base via an elastic element. During the rotation of the knob relative to the base, the second elastic element not only enables the knob and the base to have a relatively stable relative position in the axial direction of the knob, but also provides damping force, making the rotation of the knob relative to the base smooth. This is beneficial to improving the detection accuracy of the knob device and providing a better user experience.

[0034] In some possible embodiments, the second elastic element is made of rubber. In this case, the second elastic element has better elasticity. When the second elastic element abuts against another structural member, it can be interference-fitted with that structural member.

[0035] For example, the second elastic element includes a first body and a first protrusion, the first protrusion being fixed to a partial area of ​​one side surface of the first body, the first body being embedded in the knob, and the first protrusion abutting against the seat.

[0036] In this embodiment, by designing the shape of the second elastic element and the connection structure between the second elastic element and the knob and the base, the second elastic element can achieve point contact or small-area contact with the base while achieving a stable connection with the knob, so as to have a suitable interference fit. Thus, when the knob rotates relative to the base, the rotational damping is appropriate, thereby improving the user experience.

[0037] In some possible embodiments, the knob device also includes a cover plate fixed to the top side of the protrusion and located inside the knob, the cover plate being an exterior decorative element.

[0038] In this embodiment, when the knob device is applied to an electronic device, the knob and cover of the knob device are exposed relative to the housing of the electronic device, forming part of the device's appearance. Users can interact with the electronic device by rotating the knob. The cover can serve as a decorative element, enhancing the user experience. The cover can be designed with its color, material, and / or surface treatment process to meet aesthetic or other functional requirements.

[0039] In some possible embodiments, the knob device further includes an antenna, which is fixed to the side of the protrusion facing the cover. In this embodiment, the knob device can perform signal transmission and reception functions via the antenna. In this case, the knob device integrates interactive detection and signal transmission / reception functions, resulting in a small size and diverse functions. Furthermore, since the antenna is fixed to the protrusion, it is decoupled from the knob; the antenna is a fixed component and does not rotate with the knob, thus ensuring the reliability of the antenna structure. Moreover, the antenna is located on the side of the protrusion facing the cover. In this case, the distance between the antenna and the outside of the knob device is small, resulting in higher efficiency in signal transmission and reception.

[0040] The cover plate is made of a non-electromagnetic shielding material, such as plastic, ceramic, or glass. This allows electromagnetic signals to pass through the cover plate, enabling the antenna to transmit and receive signals smoothly.

[0041] The cover plate and the antenna are spaced apart, and the gap between the cover plate and the antenna can prevent the cover plate from damaging the antenna, thereby ensuring the reliability of the antenna.

[0042] In some possible embodiments, the knob device further includes an adhesive component located between the protrusion and the cover plate, covering the antenna. The adhesive component is made of an adhesive-backed material. In this embodiment, because the adhesive component is made of an adhesive-backed material, the overall thickness of the adhesive component is highly consistent, and the structural stability is high. Therefore, it helps to ensure the relative position of the cover plate and the protrusion, reduces the risk of the cover plate tilting relative to the protrusion, helps to ensure the assembly accuracy of the cover plate, and improves the reliability of the antenna.

[0043] The adhesive component can also seal and protect the antenna, further improving the reliability of the antenna and the knob device.

[0044] In some possible embodiments, the knob includes a bracket and a touch ring. The bracket is circular and rotatably connected to a base. Multiple conductive components are fixed to the bracket, and the touch ring is sleeved on the outer periphery of the bracket and fixedly connected to the bracket.

[0045] In this embodiment, the touch ring and the bracket of the knob are fixed to each other by assembly. The touch ring and the bracket can be designed and manufactured separately to meet their respective functional requirements. For example, the touch ring and the bracket can be made of different materials. In addition, the base limits the knob by limiting the bracket in the axial direction of the knob, thereby preventing the knob from detaching from the base.

[0046] In some possible embodiments, a first latching structure and a second latching structure are formed between the bracket and the touch ring. The first latching structure is used to limit the relative movement of the bracket and the touch ring in the axial direction of the knob, and a plurality of second latching structures are used to limit the relative movement of the bracket and the touch ring in the circumferential direction of the knob.

[0047] In this embodiment, the first snap-fit ​​structure and the second snap-fit ​​structure, that is, the double snap-fit ​​structure, restrict the relative movement between the bracket and the touch ring in the axial direction and circumferential direction of the knob, thereby achieving high synchronization of movement, so that the user's rotation action on the knob can be accurately identified, thereby improving the recognition accuracy of the knob device.

[0048] For example, multiple first snap-fit ​​structures can be arranged at equal intervals in the circumferential direction of the knob, and / or multiple second snap-fit ​​structures can be arranged at equal intervals in the circumferential direction of the knob. In this case, the force distribution between the bracket and the touch ring is uniform, which helps to improve the reliability of the knob structure.

[0049] Secondly, embodiments of this application also provide an electronic device. The electronic device includes a housing and a knob device as described above, the knob device being mounted on the housing, with the knob of the knob device protruding relative to the housing. In this embodiment, the electronic device can achieve convenient and highly sensitive interaction through the knob device, improving the user experience.

[0050] In some embodiments, the electronic device can be headphones. For example, the electronic device can be open-back wearable stereo headphones. OWS headphones can provide an open listening experience while avoiding the discomfort that can result from wearing headphones for extended periods of time. In addition, they have a smaller overall size and weight.

[0051] For example, electronic devices can detect the rotation of a knob to perform functions such as increasing or decreasing volume and switching tracks.

[0052] For example, the base of the knob device can be fixedly connected to the housing of the electronic device by means of adhesive dispensing. For instance, when the knob device is located on the earcup of headphones, the base can be fixedly connected to the middle shell or other housing structure of the earcup, with the knob and cover exposed as part of the earcup's external structure. In this case, the knob is relatively large, making it easier for users to locate and rotate it, improving usability and providing a better user experience. Furthermore, since the knob uses a virtual axis rotation structure, it can be implemented using part of the earcup's own external structure, eliminating the need for additional physical connecting shafts or other structures. This eliminates the need for additional weight on the headphones, helping to control the overall weight and facilitating lightweight design.

[0053] In other embodiments, the electronic device may also be a wearable device such as a watch, bracelet, smart glasses, or smart helmet, or a product with rotational interaction requirements such as a mobile phone, tablet, laptop, or camera. Attached Figure Description

[0054] To illustrate the technical solutions in the embodiments or background art of this application, the accompanying drawings used in the embodiments or background art of this application will be described below.

[0055] Figure 1 This is a schematic diagram of the structure of the knob device provided in some embodiments of this application;

[0056] Figure 2 yes Figure 1 A partially exploded view of the knob device shown.

[0057] Figure 3 yes Figure 1 A schematic diagram of the cross-sectional structure of the knob device shown, cut along point AA.

[0058] Figure 4A yes Figure 2 The diagram shows a structural schematic of the base in some embodiments;

[0059] Figure 4B yes Figure 4A A schematic diagram of the internal structure of the base shown;

[0060] Figure 5A yes Figure 2 The diagram shows a structural schematic of the bracket in some embodiments;

[0061] Figure 5B yes Figure 5A The diagram shows the structure of the bracket at another angle;

[0062] Figure 6A yes Figure 2 The diagram shows the structure of the touch ring in some embodiments;

[0063] Figure 6B yes Figure 6A The diagram shows the structure of the touch ring at another angle;

[0064] Figure 7A yes Figure 2 The diagram shows the structural schematic of the component under test in some embodiments;

[0065] Figure 7B yes Figure 7A The diagram shows the structural schematic of the part to be tested.

[0066] Figure 8A yes Figure 1 The diagram shows the structure of the knob in some embodiments;

[0067] Figure 8B yes Figure 8A A schematic diagram of the knob at another angle;

[0068] Figure 9A yes Figure 8A A schematic diagram of the cross-sectional structure of the knob shown, cut along point BB;

[0069] Figure 9B yes Figure 8A A schematic diagram of the cross-sectional structure of the knob shown, cut along point CC.

[0070] Figure 9C yes Figure 8A A schematic diagram of the internal structure of the knob shown;

[0071] Figure 10A yes Figure 2 The diagram shows the structure of the first elastic element in some embodiments;

[0072] Figure 10B yes Figure 10A The diagram shows the internal structure of the first elastic element.

[0073] Figure 11A yes Figure 1 A schematic diagram of the cross-sectional structure of the knob device shown, cut along point DD.

[0074] Figure 11B yes Figure 1 A schematic diagram of the cross-sectional structure of the knob device shown, cut along EE.

[0075] Figure 11C yes Figure 1 A schematic diagram of the internal structure of the knob device shown;

[0076] Figure 12 yes Figure 2 The diagram shows the structure of the inductor in some embodiments;

[0077] Figure 13 yes Figure 12 The diagram shows the internal structure of the inductor in some embodiments;

[0078] Figure 14 yes Figure 12 The diagram shows the structure of multiple planar coils of the inductor in some embodiments;

[0079] Figure 15A yes Figure 3 The diagram shows the structure of the inductor and multiple devices under test in one usage state.

[0080] Figure 15B yes Figure 3 The diagram shows the structure of the inductor and multiple devices under test in another usage state.

[0081] Figure 16 yes Figure 15A A schematic diagram of a partial cross-section of the structure shown, cut along FF.

[0082] Figure 17 yes Figure 2 The diagram shows the structure of the inductor in some other embodiments;

[0083] Figure 18 This is a schematic diagram of the structure of the second connection group provided in the embodiments of this application in some other embodiments;

[0084] Figure 19 yes Figure 1 A schematic diagram of the cross-sectional structure of the knob device shown in another embodiment, cut along DD;

[0085] Figure 20 yes Figure 18 The second connection group shown is Figure 2 The diagram shows the arrangement of multiple test pieces.

[0086] Figure 21A This is a schematic diagram of the structure of the connection component provided in the embodiments of this application in other embodiments;

[0087] Figure 21B yes Figure 21A The diagram shows the structural layout of the connecting component from another angle;

[0088] Figure 22 yes Figure 1 A schematic diagram of the cross-sectional structure of the knob device shown in another embodiment, cut along DD;

[0089] Figure 23 yes Figure 1 The diagram shows a cross-sectional view of the knob device cut along point AA in some other embodiments. Detailed Implementation

[0090] The embodiments of this application are described below with reference to the accompanying drawings.

[0091] In the description of the embodiments of this application, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation" and "connection" should be interpreted broadly. For example, "connection" can be a detachable connection or a non-detachable connection; it can be a direct connection or an indirect connection through an intermediate medium. The term "multiple" refers to at least two. The term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. The term "integral-molded structural component" means that during the formation of one part of the structural component, that part is connected to another part without requiring further processing (such as bonding, welding, snap-fit ​​connection, screw connection) to connect the two parts together.

[0092] The directional terms mentioned in the embodiments of this application, such as "top", "bottom", "inner", "outer", "side", etc., are only for reference to the direction of the accompanying drawings. Therefore, the directional terms used are for better and clearer explanation and understanding of the embodiments of this application, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.

[0093] In the embodiments of this application, the relative positional relationships mentioned, such as parallel, perpendicular, and aligned, are defined in relation to the current technological level, rather than being absolutely strict. Slight deviations are permissible; approximations of parallelism, perpendicularity, or alignment are all acceptable. For example, "A and B are parallel" means that A and B are parallel or approximately parallel, and the angle between A and B can be between 0 and 10 degrees. Similarly, "A and B are perpendicular" means that A and B are perpendicular or approximately perpendicular, and the angle between A and B can be between 80 and 100 degrees.

[0094] In the embodiments of this application, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first," "second," "third," etc., may explicitly or implicitly include one or more of that feature.

[0095] This application provides a knob device and an electronic device including the knob device. The knob device can be installed in the housing of the electronic device, and the knob of the knob device is exposed relative to the housing. The user can interact with the electronic device by rotating the knob.

[0096] Please refer to the following: Figures 1 to 3 , Figure 1 This is a schematic diagram of the structure of the knob device 100 provided in some embodiments of this application. Figure 2 yes Figure 1 A partially exploded view of the knob device 100 shown. Figure 3 yes Figure 1 The schematic diagram shows the cross-sectional structure of the knob device 100 cut along point AA.

[0097] In some embodiments, the knob device 100 may include a base 1, a knob 2, a connecting assembly 3, a circuit board 4, an inductor 5, and a cover plate 6.

[0098] For example, the base 1 can be understood as the basic structural component of the knob device 100, and other structural components of the knob device 100 can be mounted on the base 1. The knob device 100 can be fixedly connected to the housing of the electronic device through the base 1 for assembly in the electronic device.

[0099] For example, the knob 2 is generally annular. The knob 2 is mounted on and rotatably connected to the base 1. The knob 2 is rotatable relative to the base 1 about a rotation center line 21, and the axis Z of the knob 2 is along the rotation center line 21. Furthermore, the circumferential direction C (also referred to as the circumferential direction) of the knob 2 is the direction surrounding the axis Z of the knob 2; the radial direction R of the knob 2 is perpendicular to and intersects the axis Z of the knob 2. For ease of explanation, the components and structure of the knob device 100 will be described below primarily using the axis Z of the knob 2, the circumferential direction C of the knob 2, and the radial direction R of the knob 2 as reference coordinates.

[0100] The knob 2 may include a bracket 22, a touch ring 23, and a component under test (DUT) 24. The bracket 22 and touch ring 23 are also generally annular. The touch ring 23 is sleeved on the outside of the bracket 22 and fixedly connected to it. The DUT 24 may include multiple DUTs 241 and multiple connectors 242. The multiple DUTs 241 are fixed to the bottom of the bracket 22 one-to-one via the multiple connectors 242. Each DUT 241 includes a conductive element. In the accompanying drawings, when there are multiple components or structures, one or more of them may be labeled.

[0101] For example, the connecting component 3 includes a first connecting group 31 and a second connecting group 32, both of which connect the knob 2 and the base 1.

[0102] For example, circuit board 4 can be a rigid circuit board (also known as a rigid printed circuit board) to have high structural strength. Circuit board 4 can be located on the side of base 1 facing away from knob 2, and circuit board 4 is fixedly connected to base 1. At least some components of knob device 100 can be fixed relative to base 1 by being fixedly connected to circuit board 4, and can also be electrically connected to circuit board 4.

[0103] For example, the inductor 5 includes at least one inductor coil 51. The inductor 5 can be fixedly connected to the circuit board 4 to be fixed to the base 1. In addition, the inductor 5 is electrically connected to the circuit board 4, thereby transmitting electrical signals with the circuit board 4.

[0104] For example, the cover plate 6 can be located inside the knob 2 and fixedly connected to the base 1. For instance, the cover plate 6 can be fixedly connected to the base 1 via an adhesive component 8. In this embodiment, when the knob device 100 is applied to an electronic device, the knob 2 and the cover plate 6 of the knob device 100 are exposed relative to the housing of the electronic device, forming part of the electronic device's appearance. Users can interact with the electronic device by rotating the knob 2. The cover plate 6 can serve as a decorative element to enhance the user experience of the electronic device. For example, the cover plate 6 can be a CMF (Color, Material, Finish) component, meaning that the cover plate 6 can achieve its appearance or other functional requirements by designing its color, material, and / or finishing process. In this embodiment, since the cover plate 6 is a structural component independent of the base 1 and is fixed to the base 1 by assembly, it facilitates independent manufacturing of the cover plate 6, improving its design and processing flexibility.

[0105] In some embodiments, when the knob 2 rotates relative to the base 1, the area of ​​the area directly opposite the conductive element of at least one test piece 241 and at least one inductor coil 51 on the inductor 5 in the axial Z direction of the knob 2 changes.

[0106] In this embodiment, when the area of ​​the conductive part of the test piece 241 facing the inductor coil 51 changes, the inductance of the inductor coil 51 changes. Therefore, the change in the signal of the inductor coil 51 can be used to feed back the change in the relative position between the test piece 241 and the inductor coil 51, thereby detecting the rotation of the knob 2 relative to the base 1. The detection accuracy is high, which is beneficial to improving the user experience. Moreover, the knob device 100 has a simple structure, is easy to implement, and has a low cost.

[0107] In some embodiments, the knob device 100 may further include a controller (not shown), which is fixed to and electrically connected to the circuit board 4, and electrically connected to the inductor 5. In some examples, the signal change of the inductor coil 51 may be manifested as a change in the level signal in the controller, or other signal changes, which are not strictly limited in this application embodiment.

[0108] In this embodiment, along the axial direction Z of the knob 2, the knob device 100 and its structural components may have a "top" and a "bottom". Unless otherwise specified, the side closer to the cover plate 6 is the "top", and the side farther from the cover plate 6 is the "bottom". The thickness direction of the knob device 100 may be parallel to the axial direction Z of the knob 2.

[0109] Please refer to the following: Figure 2 , Figure 4A and Figure 4B , Figure 4A yes Figure 2 The diagram shows the structure of the base 1 in some embodiments. Figure 4B yes Figure 4A A schematic diagram of the internal structure of the base 1 shown.

[0110] In some embodiments, the base 1 may include a seat body 11 and a protrusion 12, with the protrusion 12 fixed to the seat body 11 and protruding relative to the top surface 111 of the seat body 11. The seat body 11 and the protrusion 12 can be integrally formed structural components. In this case, the connection strength between the two is high, the structure is reliable, and it also simplifies the processing steps of the base 1. It is understood that in other embodiments, the protrusion 12 may also be fixed to the seat body 11 by assembly; this embodiment does not strictly adhere to this limitation.

[0111] For example, the protrusion 12 includes a top surface 121 and a peripheral surface 122. The peripheral surface 122 of the protrusion 12 surrounds the top surface 121 of the protrusion 12 and is located between the top surface 121 of the protrusion 12 and the top surface 111 of the base 11. The peripheral surface 122 of the protrusion 12, or a portion thereof, may be a cylindrical surface or a part thereof.

[0112] For example, the protrusion 12 has a plurality of first grooves 123, which are arranged at intervals along the circumference of the base 1, and the circumference of the base 1 is consistent with the circumference C of the knob 2. The opening of the first groove 123 is located on the circumferential side surface 122 of the protrusion 12; the plurality of first grooves 123 can be arranged at equal intervals along the circumference of the base 1.

[0113] For example, the top of the base 11 may be provided with a first groove 112, the opening of the first groove 112 being located on the top surface 111 of the base 11 and surrounding the protrusion 12. In this case, the first groove 112 extends circumferentially along the base 1. The cross-sectional shape of the first groove 112 may be arc-shaped, V-shaped, or other shapes.

[0114] Please refer to the following: Figure 2 , Figure 5A and Figure 5B , Figure 5A yes Figure 2 The diagram shown is a structural schematic of the bracket 22 in some embodiments. Figure 5B yes Figure 5A The structural schematic diagram of the bracket 22 shown at another angle.

[0115] In some embodiments, the circumferential direction of the bracket 22 coincides with the circumferential direction C of the knob 2, and the axial direction of the bracket 22 coincides with the axial direction Z of the knob 2. The bracket 22 includes a top surface 221 and a bottom surface 222 disposed opposite to each other, and also includes an inner side surface 223 and an outer side surface 224 disposed opposite to each other, with the outer side surface 224 of the bracket 22 surrounding the inner side surface 223 of the bracket 22.

[0116] For example, the bracket 22 may include a plurality of locking protrusions 225, a plurality of abutting blocks 226, and a limiting ring 227. The plurality of locking protrusions 225 are arranged at intervals along the circumference of the bracket 22 and fixed to the outer surface 224 of the bracket 22. The plurality of abutting blocks 226 are arranged at intervals along the circumference of the bracket 22 and fixed to the top surface 221 of the bracket 22. The limiting ring 227 extends along the circumference of the bracket 22 and is fixed to the top surface 221 of the bracket 22, and the limiting ring 227 is located inside the plurality of abutting blocks 226.

[0117] For example, the bracket 22 may have multiple limiting grooves 228. The multiple limiting grooves 228 may be located on the top of the bracket 22 and arranged at intervals along the circumference of the bracket 22. The multiple limiting grooves 228 may be arranged at equal intervals along the circumference of the bracket 22. The limiting grooves 228 may have openings on the top surface 221 and the outer surface 224 of the bracket 22.

[0118] For example, the bracket 22 may also have a second groove 229, which is disposed on the inner side 223 of the bracket 22. The second groove 229 is arranged around the inner through hole of the bracket 22, that is, the second groove 229 extends along the circumference of the bracket 22. The cross-sectional shape of the second groove 229 can be arc-shaped, V-shaped, or other shapes.

[0119] For example, the bracket 22 may also have a plurality of second grooves 2210 and a plurality of third grooves 2220, both of which are located at the bottom of the bracket 22 and form openings on the bottom surface 222 of the bracket 22. The plurality of second grooves 2210 are arranged at intervals along the circumference of the bracket 22, for example, they may be arranged at equal intervals; the plurality of third grooves 2220 are arranged at intervals along the circumference of the bracket 22, for example, they may be arranged at equal intervals. In the circumferential direction of the bracket 22, the second grooves 2210 and the third grooves 2220 may be arranged alternately.

[0120] The second groove 2210 can be a strip-shaped groove, extending circumferentially along the support 22. The second groove 2210 can extend from the inner side 223 of the support 22 to the outer side 224 of the support 22. The second groove 2210 includes a first groove wall 2210a and a second groove wall 2210b arranged circumferentially and opposite to each other on the support 22. At least a portion of the first groove wall 2210a and at least a portion of the second groove wall 2210b are constricted in the direction near the inner side 223 of the support 22.

[0121] The third groove 2220 can be shaped like a spherical crown, a bowl, or a cone.

[0122] Please refer to the following: Figure 2 , Figure 6A and Figure 6B , Figure 6A yes Figure 2 The diagram shows the structure of the touch ring 23 in some embodiments. Figure 6B yes Figure 6A The diagram shows the structure of the touch ring 23 at another angle.

[0123] In some embodiments, the circumferential direction of the touch ring 23 is consistent with the circumferential direction C of the knob 2, and the axial direction of the touch ring 23 is consistent with the axial direction Z of the knob 2.

[0124] For example, the touch ring 23 may include a top wall 231 and a side wall 232, both of which are annular. The top wall 231 is fixed to the top of the side wall 232 and protrudes 12 toward the inner side of the side wall 232. The side wall 232 may be provided with a plurality of mating grooves 2321, which are arranged at intervals around the circumference of the touch ring 23, for example, they may be arranged at equal intervals. The openings of the mating grooves 2321 are located on the inner surface of the side wall 232.

[0125] The touch ring 23 may also include multiple mating blocks 233, which are arranged at intervals in the circumferential direction of the touch ring 23. The mating blocks 233 protrude from the inner surface of the side wall 232 and are connected to the bottom surface of the top wall 231. At this time, the connection structure between the mating blocks 233 and the side wall 232 and the top wall 231 is stable and reliable.

[0126] The outer surface of the touch ring 23 may have a rough texture, such as a raised or recessed structure. The raised or recessed structure may be dot-shaped, strip-shaped, block-shaped, etc. The specific composition of the rough texture is not strictly limited in this embodiment.

[0127] Please refer to the following: Figure 2 , Figure 7A and Figure 7B , Figure 7A yes Figure 2 The diagram shown is a structural schematic of the component under test 24 in some embodiments. Figure 7B yes Figure 7A The diagram shows the structure of the test piece 241.

[0128] In some embodiments, multiple test pieces 241 of the component under test 24 are correspondingly arranged with multiple connectors 242, and the connectors 242 are fixed to one side surface of the test piece 241. The test piece 241 may be arc-shaped, and the connectors 242 may also be arc-shaped. The area of ​​the connector 242 may be smaller than the area of ​​the test piece 241. The connector 242 may be double-sided adhesive or the like.

[0129] For example, the test piece 241 includes a conductive element 243 and a protective element 244. The protective element 244 is fixed to at least a portion of the outer surface of the conductive element 243 to protect the conductive element 243 and reduce the risk of corrosion of the conductive element 243. The conductive element 243 can be made of conductive materials such as copper, aluminum, silver, or gold; this embodiment of the application does not impose strict limitations on this.

[0130] For example, the conductive element 243 can be formed in a circuit board, with at least a portion of its outer surface covered by a dielectric layer. In this case, the device under test 241 is fabricated using a circuit board structure. For instance, the conductive element 243 can be formed in a flexible circuit board, which includes a conductive layer and dielectric layers fixed to both sides of the conductive layer. The conductive element 243 can be formed in the conductive layer, and the dielectric layer corresponds to the protective element 244.

[0131] In this embodiment, the conductive component 243 is easy to manufacture, and the dielectric layer can protect the conductive component 243, enabling it to be waterproof and corrosion-resistant, thereby improving its reliability and service life.

[0132] In some examples, multiple test pieces 241 can be formed by cutting a ring-shaped circuit board to simplify the manufacturing process and reduce the difficulty of manufacturing.

[0133] The conductive element 243 may include a first side 2431, a second side 2432, a third side 2433, and a fourth side 2434 that are arranged opposite to each other. The first side 2431 and the second side 2432 are arranged opposite to each other, the first side 2431 is the inner side, the second side 2432 is the outer side, and the third side 2433 and the fourth side 2434 are arranged opposite to each other and are both located between the first side 2431 and the second side 2432.

[0134] The first side 2431 can overlap with the inner side 2411 of the device under test 241, so that the conductive element 243 can be positioned as close as possible to the inner side of the device under test 241. The second side 2432, the third side 2433, and the other edges of the device under test 241 can be spaced apart, for example, leaving a clearance space of about 0.1 mm or more, so that the protective element 244 can provide more reliable protection for the conductive element 243.

[0135] In some other embodiments, the test piece 241 may also include a conductive element 243 but not a protective element 244. In this case, the test piece 241 may be a conductive sheet structure such as a copper sheet or an aluminum sheet.

[0136] Please refer to the following: Figures 8A to 9C You can also participate at the same time Figures 5A to 6B , Figure 8A yes Figure 1 The diagram shown is a structural schematic of knob 2 in some embodiments. Figure 8B yes Figure 8A The diagram shows the structure of knob 2 at another angle. Figure 9A yes Figure 8A The diagram shows a cross-sectional view of knob 2 taken along point BB. Figure 9B yes Figure 8A The diagram shows a cross-sectional view of knob 2 taken along point CC. Figure 9C yes Figure 8A A schematic diagram of the internal structure of knob 2 shown.

[0137] In some embodiments, the touch ring 23 is sleeved on the outer periphery of the bracket 22 and fixedly connected to the bracket 22. In this embodiment, the touch ring 23 of the knob 2 and the bracket 22 are fixed to each other by assembly. The touch ring 23 and the bracket 22 can be designed and manufactured separately to meet their different functional requirements. For example, the touch ring 23 and the bracket 22 can be made of different materials. In addition, the base 1 limits the bracket 22 in the axial Z direction of the knob 2, thereby limiting the knob 2 and preventing the knob 2 from detaching from the base 1.

[0138] In some possible embodiments, a first locking structure and a second locking structure are formed between the bracket 22 and the touch ring 23. The first locking structure is used to limit the relative movement of the bracket 22 and the touch ring 23 in the axial direction Z of the knob 2, and the second locking structure is used to limit the relative movement of the bracket 22 and the touch ring 23 in the circumferential direction C of the knob 2.

[0139] In this embodiment, the first snap-fit ​​structure and the second snap-fit ​​structure, that is, the double snap-fit ​​structure, restrict the relative movement between the bracket 22 and the touch ring 23 in the axial direction Z and the circumferential direction C of the knob 2, thereby achieving high synchronization of movement, so that the user's rotation action on the knob 2 can be accurately identified, thereby improving the recognition accuracy of the knob device 100.

[0140] For example, there can be multiple first snap-fit ​​structures, which can be arranged at equal intervals on the circumferential C of the knob 2. And / or, there can be multiple second snap-fit ​​structures, which can be arranged at equal intervals on the circumferential C of the knob 2. In this case, the force distribution between the bracket 22 and the touch ring 23 is uniform, which helps to improve the reliability of the knob 2 structure.

[0141] In this design, multiple locking protrusions 225 of the bracket 22 are correspondingly engaged with multiple mating grooves 2321 of the touch ring 23, forming a first engaging structure. The bottom surface of the locking protrusion 225 faces the groove wall of the mating groove 2321, and the two may be in contact or have a small gap. The locking protrusion 225 prevents the touch ring 23 from moving relative to the bracket 22 towards the top side of the bracket 22. The abutment block 226 of the bracket 22 abuts against the top wall 231 of the touch ring 23, preventing the touch ring 23 from moving relative to the bracket 22 towards the bottom side of the bracket 22.

[0142] In this configuration, multiple mating blocks 233 of the touch ring 23 are engaged one-to-one with multiple limiting grooves 228 of the bracket 22, forming a second engagement structure between the mating blocks 233 and the limiting grooves 228. The groove wall of the limiting groove 228 can prevent the mating blocks 233 from moving, thereby preventing the touch ring 23 from rotating relative to the bracket 22 in the circumferential direction C of the knob 2.

[0143] For example, multiple abutment blocks 226 and multiple locking protrusions 225 can be arranged alternately, and the number of both can be the same. At this time, the axial limiting structure between the bracket 22 and the touch ring 23 is evenly distributed on the circumferential C of the knob 2, thereby achieving smooth limiting.

[0144] In some embodiments, multiple test pieces 241 are fixed to the bottom of the bracket 22 by multiple connectors 242. In this case, multiple conductive elements 243 are fixed to the bracket 22, and the multiple conductive elements 243 are located at the bottom of the knob 2. The connectors 242 can be installed in the second groove 2210 of the bracket 22 (see reference). Figure 5B The first groove wall 2210a and the second groove wall 2210b of the second groove 2210 can limit the position of the connector 242, thereby limiting the position of the test piece 241, making the relative position of the test piece 241 and the bracket 22 more accurate and the assembly precision higher. The test piece 241 can be located outside the second groove 2210.

[0145] For example, multiple conductive elements 243 are arranged at intervals along the circumferential direction C of the knob 2. For instance, multiple conductive elements 243 are arranged at equal intervals along the circumferential direction C of the knob 2. In this case, the knob 2 of the knob device 100 can rotate a full circle and has unlimited position in its circumferential direction, which helps to reduce the structural design difficulty of the knob device 100 and also helps to improve the user experience.

[0146] The first side 2431 of the conductive element 243 is disposed near the inner side of the knob 2, and the second side 2432 of the conductive element 243 is disposed away from the inner side of the knob 2.

[0147] Please refer to it again. Figure 3 The knob 2 has a touch ring 23 surrounding the bracket 22, the protrusion 12, and the cover plate 6. The user rotates the knob 2 by rotating the touch ring 23. The rough texture on the outer surface of the touch ring 23 increases the coefficient of friction of the knob 2, making it less slippery when the user rotates the knob 2, thus improving the user experience.

[0148] When the knob device 100 is applied to an electronic device, the touch ring 23 is exposed relative to the housing of the electronic device, serving as one of the appearance components and can be used to decorate the electronic device. The touch ring 23 can be a CMF (Color, Material, Finish) component; that is, the touch ring 23 can meet its appearance or other functional requirements by designing its color, material, and / or finishing process.

[0149] In other embodiments, the bracket 22 and the touch ring 23 can also be integrally formed structural components to simplify the structure of the knob 2 and improve its structural strength. In this case, the conductive element 243 can also be made larger in the radial direction R of the knob 2 to improve the detection accuracy of the knob device 100.

[0150] Please refer to the following: Figure 2 , Figure 10A and Figure 10B , Figure 10A yes Figure 2The diagram shown is a structural schematic of the first elastic element in some embodiments. Figure 10B yes Figure 10A The diagram shows the internal structure of the first elastic element.

[0151] In some embodiments, the first connecting group 31 of the connecting assembly 3 includes a plurality of first elastic elements 311. Exemplarily, the first elastic element 311 can be an elastic ball member or an elastic pin member. This application describes the first elastic element 311 as an elastic ball member as an example. For example, the first elastic element 311 may include a cover 3111, a spring 3112, and a ball 3113. The cover 3111 has an inner cavity and an opening communicating with the inner cavity; the spring 3112 is located in the inner cavity, with one end of the spring 3112 contacting the bottom wall surface of the inner cavity; a portion of the ball 3113 is located in the inner cavity, and another portion of the ball 3113 protrudes from the opening, contacting the other end of the spring 3112. The ball 3113 can be made of a metal material with a relatively smooth surface and high hardness. It is understood that when the first elastic element 311 is an elastic pin structure, the ball 3113 can be replaced with a pin. In other embodiments, the first elastic element 311 can also adopt other structures such as a spring sheet.

[0152] For example, the second connection group 32 of the connection component 3 may include a plurality of connectors 321, which may be balls or rollers. This embodiment of the application describes the connector 321 as a ball. The connector 321 may be made of a hard material, such as metal.

[0153] Please refer to it again. Figure 3 and Figure 8B In some embodiments, the knob 2 is located on the top side of the base 11 and surrounds the protrusion 12. The support 22 of the knob 2 is rotatably connected to the base 1, so that the knob 2 as a whole is rotatably connected to the base 1. In this embodiment, the knob 2 is sleeved on the protrusion 12 of the base 1 and rotates around the protrusion 12. That is, the protrusion 12 forms the rotation axis of the knob 2. The knob 2 adopts a virtual axis rotation structure. The knob device 100 does not need to set an additional rotation axis structure on the knob 2. Therefore, the structure of the knob device 100 is relatively simple, and the overall structure can be set to a relatively flat structure, which is conducive to the thin design of the knob device 100.

[0154] For example, the inductor 5 and the circuit board 4 are located on the side of the base 11 facing away from the knob 2. The inductor 5 can be fixed to the surface of the circuit board 4 facing the knob 2. For instance, the inductor 5 can be soldered to the surface of the circuit board 4. In this embodiment, along the Z-axis of the knob 2, the inductor 5 is located between the circuit board 4 and the conductive elements 243 of the plurality of test objects 241. The small distance between the inductor 5 and the plurality of conductive elements 243 results in higher detection sensitivity for the inductor 5.

[0155] For example, the conductive element 243 can be in the form of a sheet, and the plane of arrangement of multiple conductive elements 243 is perpendicular to the axis Z of the knob 2. The inductor 5 is in the form of a plate, and the plane of arrangement of the inductor 5 is also perpendicular to the axis Z of the knob 2. In this embodiment, the conductive element 243 and the inductor 5 are relatively small in size along the axis Z of the knob 2, which is beneficial for the thin design of the knob device 100. In addition, since the conductive element 243 is arranged at the bottom of the knob 2, the conductive element 243 can reuse the space of the knob 2 in the vertical plane of the axis Z of the knob 2, which is beneficial for the miniaturization design of the knob device 100.

[0156] Please refer to the following: Figure 2 , Figures 11A to 11C , Figure 11A yes Figure 1 The schematic diagram shows a cross-sectional view of the knob device 100 taken along point DD. Figure 11B yes Figure 1 The schematic diagram shows a cross-sectional view of the knob device 100 taken along EE. Figure 11C yes Figure 1 A schematic diagram of the internal structure of the knob device 100 shown.

[0157] In some embodiments, a plurality of connectors 321 are arranged at intervals along the circumferential direction C of the knob 2. The connectors 321 are fixedly connected to one of the knob 2 and the base 11, and slidably connected to the other of the knob 2 and the base 11; or, the connectors 321 are rotatably connected to both the knob 2 and the base 11.

[0158] In this embodiment, multiple connectors 321 are used to connect the knob 2 and the base 11. This reduces the risk of the knob 2 tilting relative to the base 1 during rotation, making the rotation of the knob 2 smoother and improving the user experience. Furthermore, the connectors 321 are made of ball bearings or roller bearings, and the connection between the connectors 321 and the knob 2 and / or the base 11 is a rolling or sliding connection. This reduces damping when the knob 2 rotates relative to the base 1, further enhancing the user experience.

[0159] Among them, some of the connectors 321 are located in the third groove 2220 of the knob 2 and some are located in the first slide groove 112 of the base 1, which makes the relative position between the connectors 321, the knob 2 and the base 1 more stable, which is beneficial to improving the stability of the rotation of the knob 2 relative to the base 1.

[0160] In some embodiments, multiple first elastic elements 311 are arranged at intervals along the circumferential direction C of the knob 2. The first elastic elements 311 are installed on one of the protrusion 12 and the knob 2 and abut against the other. In this embodiment, by connecting the knob 2 and the protrusion 12 with multiple first elastic elements 311, the risk of the knob 2 tilting relative to the base 1 can be reduced during the rotation of the knob 2 relative to the base 1, making the rotation of the knob 2 smoother and improving the user experience.

[0161] For example, the number of first elastic elements 311 can be four, and the included angle between adjacent first elastic elements 311 is 90°, so that the knob 2 and the protrusion 12 are subjected to force evenly in two perpendicular directions in the radial direction R of the knob 2, making the rotation of the knob 2 smoother. Of course, in some other embodiments, the number of first elastic elements 311 can also be three, five or six, etc.

[0162] In some embodiments, multiple first elastic elements 311 are installed one-to-one in multiple first grooves 123 of the protrusion 12. In this embodiment, multiple first elastic elements 311 are installed in the protrusion 12 and abut against the knob 2. Compared with the scheme of installing multiple first elastic elements 311 on the knob 2, the knob 2 is lighter and the rotation is easier, which is beneficial to improving the user experience. In addition, by providing the first grooves 123 in the protrusion 12 and installing the first elastic elements 311 in the first grooves 123, the stability of the relative position of the first elastic elements 311 and the first grooves 123 can be improved, which is also beneficial to improving the space utilization of the knob device 100.

[0163] The cover 3111 of the first elastic element 311 can be fixed to the first groove 123, and the top bead 3113 of the first elastic element 311 can protrude from the peripheral side 122 of the protrusion 12 and partially engage with the second sliding groove 229 of the knob 2. At this time, the relative position of the first elastic element 311 with the protrusion 12 and the knob 2 is stable, and the first elastic element 311 can stably abut against the knob 2, so that the rotation of the knob 2 relative to the base 1 is more stable.

[0164] In addition, since the first elastic element 311 is an elastic ball component or an elastic pin component, the coefficient of friction between the first elastic element 311 and the protrusion 12 is small, which helps to reduce the damping when the knob 2 is rotated and improve the user experience.

[0165] In some possible embodiments, the cover plate 6 is fixed to the top side of the protrusion 12. Exemplarily, the periphery of the cover plate 6 covers the gap between the knob 2 and the protrusion 12 in the axial direction Z of the knob 2 to reduce the risk of external dust, debris, etc. entering the gap between the knob 2 and the protrusion 12, thereby improving the reliability and service life of the knob device 100.

[0166] Please refer to the following: Figures 12 to 14 , Figure 12 yes Figure 2 The diagram shown is a structural schematic of the inductor 5 in some embodiments. Figure 13 yes Figure 12 The diagram shows the internal structure of the inductor 5 in some embodiments. Figure 14 yes Figure 12 The diagram shows the structure of the multiple planar coils of the inductor coil 51 in some embodiments.

[0167] In some embodiments, the inductor 5 includes a plurality of inductor coils 51. The plurality of inductor coils 51 may be arranged in an arc shape.

[0168] For example, each inductor coil 51 includes N planar coils 511 stacked along the Z-axis of the knob 2, where N is a positive integer. The multiple planar coils 511 of the inductor coil 51 are stacked and the current flows in the same direction when energized, so that the inductor coil 51 has a large magnetic field strength, so as to achieve sensitive detection of the quasi-rotation action of the knob 2. Figure 13 and Figure 14 In the illustration, the inductor coil 51 includes six planar coils 511. Figure 14 The diagram shows a partial structural representation of six planar coils 511 stacked sequentially from top to bottom, with the current winding direction of each layer of planar coils 511 being consistent. It can be understood that the multiple planar coils 511 are connected in series, and adjacent planar coils 511 are electrically connected.

[0169] For example, multiple inductor coils 51 of the inductor device 5 are formed in the same circuit board. For instance, the circuit board may include multiple layers of conductive layers 512 and multiple layers of dielectric layers 513 stacked and arranged alternately. Multiple planar coils 511 of the inductor coils 51 are formed in the multiple conductive layers 512, and the multiple inductor coils 51 are arranged in different areas of the circuit board. In this embodiment, the inductor device 5 is relatively easy to manufacture, has low cost, and is readily achievable.

[0170] Please refer to the following: Figure 3 , Figure 15A and Figure 15B , Figure 15A yes Figure 3 The diagram shows the structure of the inductor 5 and multiple devices under test 241 in one usage state. Figure 15B yes Figure 3 The diagram shows the structure of the inductor 5 and multiple devices under test 241 in another usage state.

[0171] In some embodiments, multiple inductor coils 51 are arranged along the circumferential direction C of the knob 2. These inductor coils 51 can be arranged on a segment of an arc length of a circle 514, with the center of the circle 514 coinciding with the rotation center line 21 of the knob 2. The multiple inductor coils 51 are arranged at equal intervals on this arc length segment. Multiple conductive elements 243 are also arranged along the circumferential direction C of the knob 2. These conductive elements 243 can be arranged on a circle 245, with the center of the circle 245 coinciding with the rotation center line 21 of the knob 2.

[0172] When the knob 2 rotates relative to the base 1, the area of ​​the area directly opposite each other in the axial Z direction of the knob 2 changes, such as... Figure 15A and Figure 15B As shown, when knob 2 rotates the conductive element 243 (as indicated by the arrow), the area of ​​the area directly opposite the conductive element 243 and the multiple inductor coils 51 of the inductor 5 increases. Figure 15A One of the inductors, coil 51, is triggered, in Figure 15B In the middle, the two inductor coils 51 are triggered, so that the rotation direction of the knob 2 can be fed back through the signal changes of the two inductor coils 51.

[0173] In this embodiment, multiple inductor coils 51 of the knob device 100 can work simultaneously. By cooperating with the conductive element 243 through the multiple inductor coils 51, the rotation direction of the knob 2 can be accurately detected, thereby improving the detection accuracy.

[0174] In some possible embodiments, the central angle of the conductive element 243 is greater than or equal to the central angle of a single inductor coil 51, and the central angle of the gap between two adjacent conductive elements 243 is greater than or equal to the central angle of a single inductor coil 51. Specifically, the central angle of the conductive element 243 refers to the central angle corresponding to the arc length of the conductive element 243 on its arrangement circle; the central angle of the gap between two adjacent conductive elements 243 refers to the central angle corresponding to the arc length of the gap between two adjacent conductive elements 243 on the arrangement circle of multiple conductive elements 243; and the central angle of the inductor coil 51 refers to the central angle corresponding to the arc length of the inductor coil 51 on its arrangement circle.

[0175] In this embodiment, for the same inductor coil 51, only one conductive element 243 will have a significant impact on its inductance at the same time, thereby improving the detection accuracy.

[0176] In some possible embodiments, the central angle of the conductive element 243 is greater than or equal to the total central angle of the plurality of inductor coils 51, and the central angle of the gap between two adjacent conductive elements 243 is greater than or equal to the total central angle of the plurality of inductor coils 51.

[0177] In this embodiment, when the knob 2 rotates relative to the base 1, only one of the multiple conductive elements 243 significantly affects the inductance of the multiple inductor coils 51 of the inductor device 5, while the other conductive elements 243 have little or no effect on the inductor device 5. This allows the signal changes of the inductor device 5 to accurately reflect the rotation of the knob 2. At this time, the rotation direction of the knob 2 is determined by the signal changes of the multiple inductor coils 51 of the inductor device 5. In some examples, the rotation angle of the knob 2 can also be calculated to sense the user's rotation operation and achieve interaction. The knob device 100 has low cost and high detection accuracy.

[0178] In some possible embodiments, the number of conductive elements 243 is five or six, and / or the number of inductor coils 51 is two or three. In this embodiment, by setting the position and number of conductive elements 243 and inductor coils 51, and coordinating the size relationship between conductive elements 243 and inductor coils 51, not only can accurate detection be achieved during the rotation of knob 2, but the smaller number of conductive elements 243 and inductor coils 51 also helps to reduce the cost of knob device 100.

[0179] Please see Figure 16 , Figure 16 yes Figure 15A The diagram shows a partial cross-sectional view of the structure cut along FF.

[0180] In some embodiments, the area where the conductive element 243 and the inductor coil 51 face each other has a width L in the radial direction R of the knob 2, and the conductive element 243 and the inductor coil 51 have a distance S in the axial direction Z of the knob 2. The knob device 100 satisfies: S≤NL / 18. In this embodiment, the distance S between the conductive element 243 and the inductor coil 51, the width L of the area where the conductive element 243 and the inductor coil 51 face each other, and the number N of the planar coils 511 of the inductor coil 51 satisfy S≤NL / 18. This allows the conductive element 243 to significantly affect the inductance of the inductor coil 51 it faces when the knob 2 rotates, thereby improving the detection accuracy of the knob device 100.

[0181] Understandably, reducing the distance between the conductive element 243 and the inductor coil 51 can improve the detection sensitivity of the inductor coil 51, and increasing the facing width (and / or facing length) of the conductive element 243 and the inductor coil 51 can also improve the detection sensitivity of the inductor coil 51. The knob device 100 can flexibly design the distance between the conductive element 243 and the inductor coil 51 and the facing dimensions of the conductive element 243 and the inductor coil 51, taking into account multiple requirements of the knob 2 (such as rotation clearance requirements, strength requirements of the base 1 structure, detection sensitivity requirements, etc.). For example, the dimension of the conductive element 243 in the circumferential direction C of the knob 2 is larger than its dimension in the radial direction R of the knob 2.

[0182] In some possible embodiments, the number N of planar coils 511 satisfies: 4 ≤ N ≤ 8, for example 5, 6, or 7. Figure 13 and Figure 14 The following diagram uses N=6 as an example. In this case, the inductor coil 51 can have a strong magnetic field when energized, thus improving detection sensitivity, while its overall thickness can be controlled within a small range, which is beneficial for achieving a thinner inductor device 5 and knob device 100. For example, the thickness of the inductor coil 51 can be less than or equal to 0.8mm, such as 0.5mm, 0.6mm, 0.7mm, etc.

[0183] In some possible embodiments, the conductive element 243 has a width W1 in the radial direction R of the knob 2, the inductor coil 51 has a width W2 in the radial direction R of the knob 2, and the knob device 100 satisfies: W1≥W2≥L≥W2 / 2.

[0184] In this embodiment, by designing the width of the conductive element 243, the width of the inductor coil 51, and their facing width, the base 1 and the knob 2 can be positioned so that they are fully aligned, thereby improving the detection accuracy of the knob device 100.

[0185] In addition, in conjunction with reference Figure 8B Since the first side 2431 of the conductive element 243 is located close to the inner side of the knob 2, and the first side 2431 of the conductive element 243 coincides with the inner side 2411 of the test element 241, the first side 2431 of the conductive element 243 is as close as possible to the center of the knob 2, thereby increasing the width of the area of ​​the conductive element 243 and the inductor coil 51 facing each other in the radial direction R of the knob 2, so as to improve the sensing sensitivity of the inductor coil 51 to the conductive element 243 and improve the detection accuracy of the knob device 100.

[0186] It is understood that in some other embodiments, when the conductive element 243 and the inductor 5 are directly opposite each other in the Z-axis of the knob 2, the conductive element 243 may cover multiple inductor coils 51 of the inductor 5 to improve the detection accuracy of the knob device 100.

[0187] Please see Figure 17 , Figure 17 yes Figure 2 The diagram shows the structure of the inductor 5 in some other embodiments.

[0188] In some possible embodiments, the inductor 5 further includes a magnetizing block 53, which is embedded in the middle of the inductor coil 51. The magnetizing block 53 is made of a magnetically conductive material. In this case, the magnetizing block 53 can increase the magnetic field strength of the inductor coil 51 of the inductor 5, thereby improving the detection sensitivity. The magnetically conductive material can be silicon steel, iron powder, ferrite, permalloy, etc., and this application does not strictly limit this.

[0189] Among them, when the inductor 5 is fixed to the circuit board 4 (see reference) Figure 3 After being mounted, the magnetizing block 53 can be fixed to the circuit board 4 using surface mounted technology (SMT) or adhesive dispensing. Of course, the magnetizing block 53 can also be directly fixed to the inductor 5.

[0190] Please see Figure 18 and Figure 19 , Figure 18 This is a schematic diagram of the structure of the second connection group 32 provided in the embodiments of this application in other embodiments. Figure 19 yes Figure 1 The schematic diagram of the cross-sectional structure of the knob device 100 shown in some other embodiments, cut along DD.

[0191] In some embodiments, the second connection group 32 may include a plurality of second elastic elements 322, which are arranged at intervals along the circumferential direction C of the knob 2. The second elastic elements 322 are mounted on one of the knob 2 and the base 11 and abut against the other. For example, Figure 19 The illustration is given by taking the second elastic element 322 installed on the knob 2 and abutting the seat 11 as an example.

[0192] In this embodiment, the knob 2 is elastically connected to the base 1 through the second elastic element 322. During the rotation of the knob 2 relative to the base 1, the second elastic element 322 can not only make the knob 2 and the base 1 have a relatively stable relative position in the axial direction Z of the knob 2, but also provide damping force, so that the rotation of the knob 2 relative to the base 1 is smooth, which is beneficial to improving the detection accuracy of the knob device 100 and the user's operating experience is better.

[0193] In some possible embodiments, the second elastic element 322 is made of rubber. In this case, the second elastic element 322 has better elasticity. When the second elastic element 322 abuts against the structural element, it can be interference-fitted with the structural element.

[0194] For example, the second elastic element 322 includes a first body 3221 and a first protrusion 3222, the first protrusion 3222 being protrudingly fixed to a partial area of ​​one side surface of the first body 3221. The first body 3221 can be embedded in the knob 2, and the first protrusion 3222 abuts against the base 11.

[0195] In this embodiment, by designing the shape of the second elastic element 322 and the connection structure between the second elastic element 322 and the knob 2 and the base 1, the second elastic element 322 can achieve point contact or small area contact with the base 11 when it is stably connected with the knob 2, so as to have a suitable interference fit. Thus, when the knob 2 rotates relative to the base 1, the rotational damping is appropriate, thereby improving the user experience.

[0196] Please refer to the following: Figure 2 and Figure 20 , Figure 20 yes Figure 18 The second connection group 32 shown is Figure 2 The diagram shows the arrangement of multiple test pieces 241.

[0197] In some embodiments, multiple second elastic elements 322 and multiple test pieces 241 are alternately arranged on the circumferential C of the knob 2, and the multiple second elastic elements 322 can be arranged at equal intervals. In this case, the relative rotation between the knob 2 and the base 1 is smooth, and the user's operating experience is better.

[0198] Please refer to the following: Figures 21A to 22 , Figure 21A This is a schematic diagram of the structure of the connection component 3 provided in this application embodiment in other embodiments. Figure 21B yes Figure 21A The diagram shows the structure of the connecting component 3 from another angle. Figure 22 yes Figure 1 The schematic diagram of the cross-sectional structure of the knob device 100 shown in some other embodiments, cut along DD.

[0199] In some embodiments, the connecting component 3 may include multiple third elastic elements 33, which are fixed to the knob 2. One side of the third elastic element 33 is interference-connected to the protrusion 12, and the other side of the third elastic element 33 is interference-connected to the base 11. In this embodiment, the knob 2 is interference-connected to the base 1 through the third elastic element 33. The third elastic element 33 provides damping force during the rotation of the knob 2 relative to the base 1, making the rotation of the knob 2 relative to the base 1 smooth. This helps to improve the detection accuracy of the knob device 100 and provides a better user experience.

[0200] For example, the third elastic member 33 is made of rubber. In this case, the third elastic member 33 has better elasticity. When the third elastic member 33 abuts against the structural member, it can be interference-fitted with the structural member.

[0201] For example, the third elastic member 33 includes a second body 331, a second protrusion 332, and a third protrusion 333. The second protrusion 332 is protrudingly fixed to a partial area of ​​one side surface of the second body 331, and the third protrusion 333 is protrudingly fixed to a partial area of ​​the other side surface of the second body 331. The second body 331 of the third elastic member 33 is embedded in the knob 2, the second protrusion 332 abuts against the seat 11, and the third protrusion 333 abuts against the protrusion 12.

[0202] In this embodiment, by designing the shape of the third elastic element 33 and the connection structure between the third elastic element 33 and the knob 2 and the base 1, the third elastic element 33 can achieve point contact or small area contact with the base 1 while achieving a stable connection with the knob 2, so as to have a suitable interference fit. Thus, when the knob 2 rotates relative to the base 1, the rotational damping is appropriate, thereby improving the user experience.

[0203] For example, multiple third elastic elements 33 are arranged at equal intervals on the circumferential C of the knob 2, so that the contact positions of the second protrusion 332 and the base 11 and the contact positions of the third protrusion 333 and the protrusion 12 are all arranged at equal intervals on the circumferential C of the knob 2. Thus, during the rotation of the knob 2 relative to the base 1, the damping force on the knob 2 is evenly distributed in its circumferential direction, thereby improving the user experience.

[0204] Please see Figure 23 , Figure 23 yes Figure 1 The diagram shows a cross-sectional view of the knob device 100 along point AA in some other embodiments. The knob device 100 in this embodiment may include most of the technical features of the knob device 100 described above. The following mainly describes the differences between the two, and the technical features that are the same in both will not be repeated.

[0205] In some possible embodiments, the knob device 100 also includes an antenna 7, which is fixed to the side of the protrusion 12 facing the cover plate 6.

[0206] In this embodiment, the knob device 100 can perform signal transmission and reception functions via the antenna 7. At this time, the knob device 100 integrates interactive detection and signal transmission / reception functions, resulting in a small size and diverse functions. Furthermore, since the antenna 7 is fixed to the protrusion 12, the antenna 7 is decoupled from the knob 2; the antenna 7 is a fixed component and does not rotate with the knob 2, thus ensuring the reliability of the antenna 7 structure. Moreover, the antenna 7 is located on the side of the protrusion 12 facing the cover plate 6. In this case, the distance between the antenna 7 and the outside of the knob device 100 is small, resulting in higher efficiency in signal transmission and reception.

[0207] The cover plate 6 is made of a non-electromagnetic shielding material, such as plastic, ceramic, or glass. In this case, electromagnetic wave signals can pass through the cover plate 6, allowing the antenna 7 to successfully transmit and receive signals.

[0208] Alternatively, in some other embodiments, the cover plate 6 may also include a plate and a coupling element fixed to the plate. The coupling element may be, for example, a metal sheet. The antenna 7 can be coupled to the coupling element to jointly realize the signal transmission and reception function. In this embodiment, since the cover plate 6 is fixed to the base 1, and both the cover plate 6 and the base 1 are fixed components that do not rotate with the knob 2, the rotation of the knob 2 will not affect the relative position of the antenna 7 and the coupling element, that is, it will not affect the coupling effect between the two, thereby avoiding adverse effects on the performance of the antenna 7, and the performance of the antenna 7 is better.

[0209] In this design, the cover plate 6 and the antenna 7 are spaced apart. The gap between the cover plate 6 and the antenna 7 prevents the cover plate 6 from damaging the antenna 7, thereby ensuring the reliability of the antenna 7. In some examples, the gap between the cover plate 6 and the antenna 7 can be in the range of 0.1mm to 0.15mm. In this case, the gap can not only prevent the cover plate 6 from damaging the antenna 7, but also meet the overall thickness requirements of the knob device 100, which is beneficial to the thinning of the knob device 100.

[0210] In some possible embodiments, antenna 7 is an LDS (laser direct structuring) antenna, and antenna 7 is formed on protrusion 12.

[0211] In this embodiment, the antenna 7 is directly formed on the protrusion 12, which not only helps to ensure the connection stability between the antenna 7 and the protrusion 12, but also helps to simplify the assembly structure of the knob device 100 and reduce the volume of the knob device 100.

[0212] The protrusion 12 can be made of LDS special plastics, such as polyamide and polycarbonate.

[0213] In some possible embodiments, the knob device 100 further includes an adhesive 8 located between the protrusion 12 and the cover plate 6 and covering the antenna 7, the adhesive 8 being made of an adhesive material.

[0214] In this embodiment, since the adhesive 8 uses an adhesive material, the overall thickness of the adhesive 8 is highly consistent and the structural stability is high. Therefore, it is beneficial to ensure the relative position of the cover plate 6 and the protrusion 12, reduce the risk of the cover plate 6 tilting relative to the protrusion 12, and help ensure the assembly accuracy of the cover plate 6, thereby improving the reliability of the antenna 7.

[0215] The adhesive component 8 can cover the antenna 7. The adhesive component 8 can also seal and protect the antenna 7 to further improve the reliability of the antenna 7 and the knob device 100.

[0216] For example, the knob device 100 may also include an electrical connector (not shown in the figure). The protrusion 12 may be provided with a through hole 124 (see [reference needed]). Figure 4A A perforation 124 extends through the protrusion 12 axially, and the number of perforations 124 can be one, two, or more. Part of the electrical connector can be fixed to the inner surface of the protrusion 12, which is opposite to the top surface 121 of the protrusion 12. Another part of the electrical connector is connected to the antenna 7 via the perforation 124. For example, the electrical connector can also be formed on the protrusion 12 using an LDS process.

[0217] In this embodiment, since the antenna 7 is a fixed component, it is easy to achieve a waterproof design for the entire knob device 100. For example, by covering the perforation 124 of the protrusion 12 with adhesive or other bonding materials 8, a seal can be achieved, thereby achieving a waterproof effect. In some other embodiments, the protrusion 12 may not have a perforation 124, and the electrical connector can power the antenna 7 through coupling.

[0218] For example, the knob device 100 may also include an electrical connection component (not shown in the figure), which is fixed to the circuit board 4 and electrically connects the circuit board 4 to the electrical connector. The electrical connection component may be a spring, a pin, or a similar structure.

[0219] In addition, since the circuit board 4 is located on the side of the inductor 5 facing away from the knob 2, the distance between the circuit board 4 and the top of the protrusion 12 is relatively large, and therefore the distance between it and the antenna 7 is relatively large, which helps to increase the clearance of the antenna 7 and improve the efficiency of the antenna 7.

[0220] It is understood that in some other embodiments, the antenna 7 may also adopt other molding and / or assembly processes. For example, the antenna 7 may be a copper sheet or a flexible circuit board 4, which is fixed to the protrusion 12 by adhesive bonding. This application embodiment does not strictly limit this.

[0221] It is understood that in some other embodiments, the adhesive 8 may not use a backing material, but rather glue, which can be formed by dispensing or other methods. This application does not strictly limit this.

[0222] It is understood that in the foregoing embodiments, the adhesive 8 is located in the gap between the cover plate 6 and the antenna 7. In some other embodiments, the gap between the cover plate 6 and the antenna 7 may not have an adhesive 8, but may instead have an air layer or other structures. In some other embodiments, the cover plate 6 may also be stacked with the antenna 7 without a gap between them; this application does not strictly limit this.

[0223] In this embodiment of the application, the electronic device includes the aforementioned knob device 100, which not only enables convenient and highly sensitive interaction, but also helps to improve the appearance design of the electronic device and enhance the user experience.

[0224] In some embodiments, the electronic device can be headphones. For example, the electronic device can be open wearable stereo (OWS) headphones. OWS headphones can provide an open listening experience while avoiding the discomfort that can result from wearing headphones for extended periods of time. In addition, they have a smaller overall size and weight.

[0225] For example, the base 1 of the knob device 100 can be fixedly connected to the housing of the electronic device by means of adhesive dispensing or other methods. For instance, when the knob device 100 is located on the earcup of an earphone, the base 1 can be fixedly connected to the middle shell or other housing structure of the earcup, and the knob 2 and cover 6 of the knob device 100 are exposed, serving as part of the earcup's external structure. In this case, the knob 2 is relatively large, making it easier for users to find the position of the knob 2 and rotate it, thus improving ease of use and providing a better user experience. Furthermore, since the knob 2 adopts a virtual axis rotation structure, it can be implemented using part of the earcup's own external structure, eliminating the need for additional physical connecting shafts or other structures. This eliminates the need to add extra weight to the earphones, which is beneficial for controlling the overall weight of the earphones and facilitating lightweight design.

[0226] In other embodiments, the electronic device may also be a wearable device such as a watch, bracelet, smart glasses, or smart helmet, or a product with rotational interaction requirements such as a mobile phone, tablet, laptop, or camera.

[0227] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of this application can be combined with each other, and any combination of features in different embodiments is also within the protection scope of this application. That is to say, the multiple embodiments described above can also be arbitrarily combined according to actual needs.

[0228] It should be noted that all the above figures are exemplary illustrations of this application and do not represent the actual size of the product. Furthermore, the dimensional proportions between the components in the figures are not intended to limit the actual product of this application.

[0229] The above are merely some embodiments and implementation methods of this application. The scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A knob device (100), characterized in that Includes a base (1), a knob (2), and an inductor (5); The knob (2) is rotatably connected to the base (1). The knob (2) includes a plurality of conductive elements (243), which are arranged at intervals along the circumference (C) of the knob (2). The inductor (5) is fixed to the base (1). The inductor (5) includes a plurality of inductor coils (51), which are arranged along the circumference (C) of the knob (2). Each inductor coil (51) includes N planar coils (511) stacked along the axial direction (Z) of the knob (2), where N is a positive integer. When the knob (2) rotates relative to the base (1), the area of ​​the opposing region of at least one conductive element (243) and at least one inductor (51) on the axial (Z) direction of the knob (2) changes. The opposing region has a width L on the radial (R) direction of the knob (2). The conductive element (243) and the inductor (51) have a distance S on the axial (Z) direction of the knob (2). The knob device (100) satisfies: S≤NL / 18.

2. The knob device (100) according to claim 1, characterized in that The number N of the planar coils (511) satisfies: 4≤N≤8.

3. The knob device (100) according to claim 2, characterized in that The multiple inductor coils (51) of the inductor device (5) are formed in the same circuit board.

4. The knob device (100) according to claim 1, characterized in that The conductive element (243) has a width W1 in the radial direction (R) of the knob (2), the inductor coil (51) has a width W2 in the radial direction (R) of the knob (2), and the knob device (100) satisfies: W1≥W2≥L≥W2 / 2.

5. The knob device (100) according to claim 1, characterized in that The inductor (5) also includes a magnetizing block (53), which is embedded in the middle of the inductor coil (51) and is made of a magnetically conductive material.

6. The knob device (100) according to claim 1, characterized in that The central angle of the conductive element (243) is greater than or equal to the total central angle of the plurality of inductors (51), and the central angle of the gap between two adjacent conductive elements (243) is greater than or equal to the total central angle of the plurality of inductors (51).

7. The knob device (100) according to claim 1, characterized in that The number of the conductive elements (243) is five or six, and / or the number of the inductors (51) is two or three.

8. The knob device (100) according to claim 1, characterized in that The conductive element (243) is formed in the circuit board, and at least part of the outer surface of the conductive element (243) is covered by a dielectric layer.

9. The knob device (100) according to any one of claims 1 to 8, characterized in that The base (1) includes a seat (11) and a protrusion (12), the protrusion (12) being fixed to the seat (11) and protruding relative to the top surface (111) of the seat (11); The knob (2) is located on the top side of the base (11) and is arranged around the protrusion (12), and a plurality of the conductive elements (243) are located at the bottom of the knob (2); The inductor (5) is located on the side of the base (11) facing away from the knob (2).

10. The knob device (100) according to claim 9, characterized in that The knob device (100) also includes a circuit board (4), which is located on the side of the base (11) facing away from the knob (2), and the inductor (5) is fixed to the surface of the circuit board (4) facing the knob (2).

11. The knob device (100) according to claim 9, characterized in that The knob device (100) further includes a plurality of first elastic elements (311), which are arranged at intervals along the circumference (C) of the knob (2). The first elastic elements (311) are mounted on one of the protrusion (12) and the knob (2) and abut against the other.

12. The knob device (100) as claimed in claim 11, characterized in that, The protrusion (12) has a plurality of first grooves (123), which are arranged at intervals along the circumference (C) of the knob (2), and a plurality of first elastic elements (311) are installed in the plurality of first grooves (123) in a corresponding manner.

13. The knob device (100) as claimed in claim 12, characterized in that, The first elastic element (311) is an elastic ball component or an elastic pin component.

14. The knob device (100) as claimed in any one of claims 11 to 13, characterized in that, The knob device (100) further includes a plurality of connectors (321), which are arranged at intervals along the circumference (C) of the knob (2), and the connectors (321) are balls or rollers; The connector (321) is fixedly connected to one of the knob (2) and the base (11), and slidably connected to the other of the knob (2) and the base (11); or, the connector (321) is slidably connected to the knob (2) and slidably connected to the base (11).

15. The knob device (100) as claimed in any one of claims 11 to 13, characterized in that, The knob (2) further includes a plurality of second elastic elements (322), which are arranged at intervals along the circumference (C) of the knob (2). The second elastic elements (322) are installed on one of the knob (2) and the seat (11) and abut against the other.

16. The knob device (100) as claimed in claim 15, characterized in that, The second elastic element (322) is made of rubber material. The second elastic element (322) includes a first body (3221) and a first protrusion (3222). The first protrusion (3222) is fixed to a local area of ​​one side surface of the first body (3221). The first body (3221) is embedded in the knob (2). The first protrusion (3222) abuts against the seat (11).

17. The knob device (100) as claimed in claim 9, characterized in that, The knob device (100) also includes a cover plate (6), which is fixed to the top side of the protrusion (12) and located inside the knob (2). The cover plate (6) is an exterior decorative part.

18. The knob device (100) as claimed in claim 17, characterized in that, The knob device (100) also includes an antenna (7), which is fixed to the side of the protrusion (12) facing the cover plate (6).

19. The knob device (100) as claimed in claim 18, characterized in that, The knob device (100) also includes an adhesive (8) located between the protrusion (12) and the cover plate (6) and covering the antenna (7), the adhesive (8) being made of adhesive material.

20. The knob device (100) as claimed in any one of claims 1 to 8, characterized in that, The knob (2) includes a bracket (22) and a touch ring (23). The bracket (22) is in the shape of a ring and is rotatably connected to the base (1). A plurality of conductive elements (243) are fixed to the bracket (22). The touch ring (23) is sleeved on the outer periphery of the bracket (22) and is fixedly connected to the bracket (22).

21. The knob device (100) as claimed in claim 20, characterized in that, The bracket (22) and the touch ring (23) form a first snap-fit ​​structure and a second snap-fit ​​structure. The first snap-fit ​​structure is used to restrict the relative movement of the bracket (22) and the touch ring (23) in the axial (Z) direction of the knob (2). The second snap-fit ​​structure is used to restrict the relative movement of the bracket (22) and the touch ring (23) in the circumferential (C) direction of the knob (2).

22. An electronic device, characterized in that, The device includes a housing and a knob device (100) according to any one of claims 1 to 21, the knob device (100) being mounted on the housing, the knob (2) of the knob device (100) being exposed relative to the housing.

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