Knob device and electric appliance

Abstract

The application provides a knob device and an electrical equipment. The knob device comprises a movement assembly and a collision assembly. The movement assembly comprises a shell and a first magnetic part. The first magnetic part is fixedly connected to the shell. The movement assembly can rotate around an axis of the movement assembly. The collision assembly is at least partially located between the shell and the first magnetic part. The movement assembly has a first state and a second state. In the first state, the shell and the collision assembly are oppositely and spacedly arranged. The shell can move towards a side close to the collision assembly to collide with the collision assembly. In the second state, the first magnetic part and the collision assembly are oppositely and spacedly arranged. The first magnetic part can move towards a side close to the collision assembly to be magnetically attracted to the collision assembly. The knob device provided by the application solves the problem that the existing knob device has a single movement mode and the user cannot obtain feedback when starting or stopping, and the user experience is not good.

Description

Technical Field

[0001] This application belongs to the field of electronic device technology, and in particular relates to a knob device and electrical equipment. Background Technology

[0002] Traditional rotary switches, such as potentiometer-type and lever-coded rotary switches, have drawbacks: they require drilling holes for installation, which is unsightly and reduces their lifespan. To solve these problems, magnetic induction rotary switches can be used. These switches utilize magnetic induction technology to sense the rotation of the knob, achieving both on / off control and speed adjustment.

[0003] However, in traditional solutions, the magnetic induction switch knob has a single movement mode, and users cannot get feedback when it is turned on or off, resulting in a poor user experience. Summary of the Invention

[0004] This application provides a knob device and electrical equipment to solve the problem that existing knob devices have a single movement mode and that users cannot get feedback when starting or stopping, resulting in a poor user experience.

[0005] In a first aspect, embodiments of this application provide a knob device, including: a motion component, including a housing and a first magnetic element, the first magnetic element being fixedly connected to the housing, and the motion component being rotatable about the axis of the motion component;

[0006] A collision assembly, at least partially located between the housing and the first magnetic element;

[0007] The motion component has a first state and a second state. In the first state, the outer shell is opposite to and spaced apart from the collision component, and the outer shell can move toward the side closer to the collision component to collide with the collision component. In the second state, the first magnetic element is opposite to and spaced apart from the collision component, and the first magnetic element can move toward the side closer to the collision component to be magnetically attracted to the collision component.

[0008] In some embodiments, the knob device includes a guide portion disposed on the side of the housing facing the collision assembly, the first magnetic element is fixed to the guide portion on the side away from the housing, a portion of the first magnetic element protrudes from the guide portion so that the first magnetic element is magnetically attracted to the collision assembly, the collision assembly is sleeved on the guide portion and is clearance-fitted with the guide portion.

[0009] In some embodiments, the collision assembly includes a mounting plate and a collision element disposed between the housing and the first magnetic element. The collision element is configured as a bearing, which includes an inner bearing ring and an outer bearing ring connected to each other. The inner bearing ring is rotatable relative to the outer bearing ring. The inner bearing ring is sleeved on the outer periphery of the guide portion and has a clearance fit with the guide portion. The upper axial limit of the outer bearing ring is located at the mounting plate. In a first state, the housing moves toward the side closer to the collision element to collide with the collision element. In a second state, the first magnetic element moves toward the side closer to the collision element to attract the collision element.

[0010] In some embodiments, the motion component further includes an inner tray fixed to the housing, a first sidewall of the inner tray extending along the side near the impact component, and the knob device further includes a damping component mounted on the mounting plate facing the housing and limitedly connected to the first sidewall, so that when the motion component rotates about the axis of the motion component, the inner tray causes the damping component to rotate relative to the mounting plate.

[0011] In some embodiments, the damping assembly includes a first mounting base, an elastic element, and a ball bearing. The first mounting base is limitedly connected to the first sidewall. One end of the elastic element is mounted on the first mounting base, and the ball bearing is connected to the opposite end of the elastic element. The mounting plate has a plurality of first mating parts protruding on the side opposite to the ball bearing, which mate with the ball bearing. When the motion assembly rotates about the axis of the motion assembly, the inner tray drives the first mounting base to rotate relative to the mounting plate.

[0012] In some embodiments, the damping assembly includes a second mounting base and a damping bearing. The second mounting base is limitedly connected to the first sidewall. The inner ring of the damping bearing is fixed to the second mounting base, and the outer ring of the damping bearing is fixed to the mounting plate. When the motion assembly rotates about the axis of the motion assembly, the inner tray drives the second mounting base to rotate relative to the mounting plate.

[0013] In some embodiments, the damping assembly includes a third mounting base and a spring plate. The third mounting base is limitedly connected to the first side wall, and the spring plate is fixed to the third mounting base. The mounting plate has a plurality of second mating parts protruding on the side opposite to the spring plate, which mate with the spring plate. When the motion assembly rotates about the axis of the motion assembly, the inner tray drives the third mounting base to rotate relative to the mounting plate.

[0014] Secondly, this application also provides an electrical device, which includes a knob device and a panel. The knob device is the knob device described in any of the above embodiments. The knob device is mounted on the panel, and the collision component is fixed relative to the panel.

[0015] In some embodiments, the electrical device further includes a magnetic induction component mounted on the side of the panel opposite to the knob device. The magnetic induction component includes a magnetic sensor, which is arranged axially with the first magnetic element. The first magnetic element includes an N pole and a S pole arranged along a first direction, which is at an angle to the axial direction.

[0016] In some embodiments, the knob device further includes a second magnetic element installed between the collision assembly and the panel. The magnetic sensing assembly further includes a third magnetic element that cooperates with the second magnetic element. The third magnetic element is located between the panel and the magnetic sensor. The second magnetic element and the third magnetic element attract each other to attach the knob device to the panel.

[0017] The knob device provided in this application embodiment has three movement modes, offering a variety of options. The first movement mode is rotation. The second movement mode involves pressing the outer shell, causing it to move towards the collision component while the first magnetic component gradually moves away from it. The third movement mode involves the first magnetic component gradually approaching the collision component and magnetically attracting it when the outer shell is not under pressure, while the outer shell moves away from it. This allows the knob device to adjust the gear position through pressing and rotation, and it automatically returns to its original position when the outer shell is not under pressure to prevent accidental activation. Furthermore, the relative positions of the collision component, the outer shell, and the first magnetic component provide tactile and audible feedback when the outer shell collides with the collision component. When the outer shell is not pressed, the first magnetic component magnetically attracts the collision component, generating audible feedback, allowing the user to intuitively experience the different adjustment states of the knob device. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application, and those skilled in the art can obtain other drawings based on these drawings without creative effort.

[0019] To gain a more complete understanding of this application and its beneficial effects, the following description will be provided in conjunction with the accompanying drawings. In the following description, the same reference numerals denote the same parts.

[0020] Figure 1 A schematic diagram of the knob device provided in this application.

[0021] Figure 2 for Figure 1 A cross-sectional view at one angle of the first embodiment of the central knob device.

[0022] Figure 3 for Figure 1 A cross-sectional view from another angle of the first embodiment of the central knob device;

[0023] Figure 4 for Figure 1 A cross-sectional view from another angle of the first embodiment of the central knob device;

[0024] Figure 5 for Figure 1 A cross-sectional view at one angle of the second embodiment of the central knob device;

[0025] Figure 6 for Figure 1 A cross-sectional view from one angle of the third embodiment of the central knob device;

[0026] Figure 7 for Figure 6 A partial enlarged view of point A in the knob device shown;

[0027] Figure 8 A schematic diagram of the knob device and magnetic induction component provided in this application;

[0028] Figure 9 for Figure 8 Cross-sectional view.

[0029] Explanation of icon numbers:

[0030] 100 Knob device 811 Limiting groove 10 shell 83 elastic element 30 First magnetic component 85 Beads 40 Guiding Department 86 Second mounting bracket 50 Installation disk 87 Damping bearings 51 First Coordination Department 88 Third mounting bracket 52 Second Coordination Unit 89 shrapnel 60 Collision components 300 Magnetic induction components 70 Inner tray 301 magnetic sensor 71 First side wall 305 panel 711 Limit block 20 Second magnetic component 81 First mounting base 303 Third magnetic component Detailed Implementation

[0031] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0032] Traditional rotary switches, such as potentiometer-type and lever-coded rotary switches, have drawbacks. They require drilling holes for installation, which is unsightly and reduces lifespan. To address these issues, magnetic induction switches can be used. These switches utilize magnetic induction technology to sense rotation, enabling on / off control and speed adjustment. However, traditional magnetic induction switches often only allow rotation along a certain axis, offering limited functionality and providing no user feedback during start-up or shutdown, resulting in a poor user experience.

[0033] Please see Figure 1 , Figure 1 The diagram shows a knob device 100, which may specifically be a magnetic induction switch knob device. Please refer to [link / reference]. Figure 2 In some embodiments of this application, the knob device 100 may specifically include: a motion component, including a housing 10 and a first magnetic element 30, the first magnetic element 30 being fixedly connected to the housing 10, and the motion component being rotatable about its axis; the knob device 100 may also specifically include a collision component, at least a portion of which is located between the housing 10 and the first magnetic element 30; the motion component has a first state and a second state. In the first state, the housing 10 is opposite to and spaced apart from the collision component, and the housing 10 is able to move toward the side closer to the collision component to collide with it. In the second state, the first magnetic element 30 is opposite to and spaced apart from the collision component, and the first magnetic element 30 is able to move toward the side closer to the collision component to magnetically attract it.

[0034] In this embodiment, the moving component of the knob device 100 includes a housing 10 and a first magnetic element 30. The housing 10 is used to install other components, protecting other structures and improving the overall integrity and appearance of the knob device 100. The first magnetic element 30 is fixedly connected to the housing 10, and the moving component can rotate around its axis. Specifically, the housing 10 may have a receiving cavity, and the first magnetic element 30 is fixedly connected to the housing 10 and disposed within the receiving cavity. The knob device can rotate, and its positions can be adjusted by rotation. When the user rotates the moving component, the moving component can rotate around its axis. For example, when the housing of the knob device 100 is rotated under force, it simultaneously drives the first magnetic element 30 to rotate. At least a portion of the collision component of the knob device 100 is located between the housing 10 and the first magnetic element 30, thereby facilitating cooperation with the housing 10 and the first magnetic element 30. Specifically, the movement component can have a first state and a second state. In the first state, the housing 10 and the collision component are opposite to each other and spaced apart. At this time, the housing 10 can move towards the side closer to the collision component to collide with it. It is easy to understand that in the first state, there is a gap between the housing 10 and the collision component. When the housing is pressed, it moves towards the collision component, colliding with it. This allows the user to perceive the collision through a change in tactile sensation and provides further audible feedback. In the second state, the first magnetic element 30 and the collision component are opposite to each other and spaced apart. It is easy to understand that, since the housing 10 and the collision component are opposite to each other and spaced apart in the first state, the housing 10 can move towards the side closer to the collision component to collide with it. When the outer casing 10 moves towards the side closer to the collision component, it causes the first magnetic component 30 to move away from the collision component. There is a gap between the first magnetic component 30 and the collision component, and this gap gradually increases. Thus, when the outer casing 10 collides with the collision component, there can be a maximum gap between the first magnetic component 30 and the collision component. This state, where the first magnetic component 30 has a gap from the collision component, can be defined as the second state. It is easy to understand that there is always a magnetic force between the first magnetic component 30 and the collision component. When the outer casing is pressed, because the pressing force is greater than the magnetic force between the first magnetic component 30 and the collision component, the outer casing moves the first magnetic component 30, causing it to gradually move away from the collision component. When the outer casing is not pressed, the magnetic force between the first magnetic component 30 and the collision component allows the first magnetic component 30 to move towards the side closer to the collision component, so as to be magnetically attracted to the collision component. When the first magnetic component 30 is magnetically attracted to the collision component, sound and tactile feedback are generated, providing feedback to the user.

[0035] In this embodiment, the knob device has three movement modes. The first mode is rotation. The second mode is that when the outer shell is pressed, the outer shell moves towards the side closer to the collision component, while the first magnetic element 30 gradually moves away from the collision component. The third mode is that when the outer shell is not under pressure, the first magnetic element 30 gradually approaches the collision component and is magnetically attracted to it, while the outer shell moves away from the collision component. This allows the knob device to adjust the gear position through pressing and rotation. Furthermore, due to the positional relationship between the collision component, the outer shell, and the first magnetic element 30, the collision of the outer shell with the collision component provides tactile and auditory feedback. When the outer shell is not pressed, the first magnetic element 30 is magnetically attracted to the collision component, generating auditory feedback, allowing the user to intuitively perceive the different states of the knob device. When the outer shell is not under pressure, it automatically returns to its original position to prevent accidental activation. Specifically, the outer shell can be made of metal materials, such as aluminum, titanium, or stainless steel. The first magnetic element 30 can be made of a magnet or other magnetic material.

[0036] Please see Figure 2 In some embodiments, the knob device includes a guide portion 40 disposed on the side of the housing 10 facing the collision assembly, the first magnetic element 30 is fixed to the guide portion 40 on the side away from the housing 10, a portion of the first magnetic element 30 protrudes from the guide portion 40 so that the first magnetic element 30 is magnetically attracted to the collision assembly, the collision assembly is sleeved on the guide portion 40 and is in clearance fit with the guide portion 40.

[0037] In these embodiments, the knob device includes a guide portion 40 disposed on the side of the housing 10 facing the collision assembly. The first magnetic element 30 is fixed to the guide portion 40 on the side facing away from the housing 10. In other words, the guide portion 40 and the first magnetic element 30 are arranged along the axial direction of the guide portion 40. Thus, when the housing 10 is pressed, the housing 10 drives the guide portion 40 and further drives the first magnetic element 30 to move. In some specific embodiments, the first magnetic element 30 may have a first opening in the center, and the guide portion 40 may have a second opening in the center. After passing through the first opening, the guide portion 40 is fixed to the second opening, thereby fixing the first magnetic element 30 to the guide portion 40. It is easily understood that part of the first magnetic element 30 needs to protrude from the guide portion 40. In this way, when the first magnetic element 30 protrudes from the guide portion 40, it can be magnetically attracted to the collision assembly sleeved on the guide portion 40. The collision assembly is sleeved on the guide portion 40 and has a clearance fit with the guide portion 40. Thus, when the outer casing 10 drives the guide portion 40 to move along the axial direction of the outer casing 10, the outer casing and the first magnetic component 30 can move closer to and away from the collision component. Furthermore, when the outer casing is rotated about its axis, due to the clearance fit between the outer casing and the guide portion 40, the outer casing will drive the guide portion 40 and further drive the first magnetic component 30 to rotate, without causing the collision component to rotate accordingly.

[0038] Please see Figure 2 In some embodiments, the collision assembly includes a mounting plate 50 and a collision element 60. The collision element 60 is disposed between the housing 10 and the first magnetic element 30. The collision element is configured as a bearing, which includes an inner bearing ring and an outer bearing ring connected to each other. The inner bearing ring is rotatable relative to the outer bearing ring. The inner bearing ring is sleeved on the outer periphery of the guide portion 40 and has a clearance fit with the guide portion. The upper axial limit of the outer bearing ring is located at the mounting plate. In a first state, the housing 10 moves toward the side closer to the collision element 60 to collide with the collision element 60. In a second state, the first magnetic element 30 moves toward the side closer to the collision element 60 to attract the collision element 60.

[0039] In these embodiments, the collision assembly includes a mounting plate 50 and a collision element 60, which is disposed between the housing 10 and the first magnetic element 30. When the knob device is in a second movement mode, specifically when the housing is pressed, the housing moves towards the collision element 60, and simultaneously, the first magnetic element 30 gradually moves away from the collision element 60. When the knob device is in a third movement mode, specifically when the housing is not under pressure, the first magnetic element 30 gradually approaches the collision element 60 and is magnetically attracted to it, while simultaneously, the housing moves away from the collision element 60. The collision element 60 is made of metal, such as iron. The collision element can be a bearing, wherein the inner ring of the bearing is fitted around the outer periphery of the guide portion and has a clearance fit with the guide portion. The upper axial limit of the outer ring of the bearing is located at the mounting plate. Thus, as long as the mounting plate is fixed, the outer ring of the bearing will not move axially.

[0040] The knob device in this embodiment can be rotated to adjust the gear. Ideally, the outer shell of the knob device rotates around its axis. Since the inner ring of the bearing is fitted around the outer circumference of the guide portion with a clearance fit, the rotation of the outer shell will not cause the bearing to rotate. However, in actual operation, when the user rotates the outer shell of the knob device, it often cannot rotate accurately around the axis of the outer shell. This causes the guide portion to deviate from the axis and tilt, resisting the inner ring of the bearing, thus causing the inner ring of the bearing to rotate. Because the inner ring of the bearing is rotatable relative to the outer ring, when the inner ring rotates, the outer ring remains stationary. Therefore, the outer ring will not cause the mounting plate 50 to rotate, thus keeping the entire collision assembly stationary and making the entire knob device more stable.

[0041] In some embodiments, the motion assembly further includes an inner tray 70 fixed to the housing 10, a first sidewall 71 of the inner tray 70 extending along the side near the impact assembly, and the knob device 100 further includes a damping assembly mounted on the mounting plate 50 facing the housing 10 and limitedly connected to the first sidewall 71, so that when the motion assembly rotates about the axis of the motion assembly, the inner tray 70 causes the damping assembly to rotate relative to the mounting plate 50.

[0042] In these embodiments, the motion component further includes an inner tray 70 fixed to the outer casing 10, wherein the inner tray 70 and the outer casing 10 can be fixed by means of bonding, welding, or other methods. The first sidewall 71 of the inner tray 70 extends along the side near the impact component. The knob device 100 also includes a damping component, which generates damping when the knob device is rotated. The damping component facilitates fine adjustment of the gear position by the user and provides adjustment feedback. Specifically, the damping component is mounted on the side of the mounting plate 50 facing the outer casing 10. The mounting plate 50 may have a mounting groove on the side facing the outer casing 10 for mounting the damping component. The damping component is rotatable relative to the mounting plate about its axis. The damping component is limited by the first sidewall, so that when the motion component rotates about its axis, the inner tray 70 causes the damping component to rotate relative to the mounting plate 50. Thus, when the outer casing 10 rotates, the outer casing causes the inner tray 70 to rotate, and the inner tray 70 further causes the damping component to rotate about the axis of the mounting plate, thereby generating damping. For specific settings of the damping components, please refer to the following text, which provides several different implementation methods for damping components.

[0043] In one specific implementation, please refer to Figure 2 , Figure 3 as well as Figure 4 The damping assembly may include a first mounting base 81, an elastic element 83, and a ball bearing 85. The first mounting base 81 is limitedly connected to the first side wall 71. One end of the elastic element 83 is mounted on the first mounting base 81, and the ball bearing 85 is connected to the opposite end of the elastic element 83. The mounting plate 50 has a plurality of first mating parts 51 protruding on the side opposite to the ball bearing 85, which mate with the ball bearing 85. When the motion assembly rotates around the axis of the motion assembly, the inner tray 70 drives the first mounting base 81 to rotate relative to the mounting plate 50.

[0044] Please combine Figure 2 , Figure 3 In this specific embodiment, the damping assembly may include a first mounting base 81, an elastic element 83, and a ball 85. Please refer to... Figure 3The first mounting base 81 is limitedly connected to the first sidewall 71. Therefore, when the outer shell 10 rotates, the outer shell will drive the inner tray 70 to rotate, and the inner tray 70 will further drive the first mounting base 81 to rotate around the axis of the mounting plate. The first sidewall 71 may have a protruding limiting block 711, and the first mounting base 81 may have a recessed limiting groove 811 that mates with the limiting block 711. The limiting block 711 is limited within the limiting groove 811, thereby achieving a limited connection between the first mounting base 81 and the first sidewall 71. Thus, when the outer shell 10 rotates, the outer shell 10 will drive the inner tray 70 to rotate, and the inner tray 70 will further drive the first mounting base 81 to rotate around the axis of the mounting plate. However, when the outer shell 10 moves along its axis, it will not cause the first mounting base 81 to move along its axis. Furthermore, to ensure that when the outer casing 10 moves to different positions along its axis, the inner tray 70 will still rotate when the outer casing 10 rotates, the length of the limiting block 711 can be configured to be greater than the length of the limiting groove 811. This ensures that when the limiting block 711 moves to different positions along its axis, a portion of the limiting block 711 remains within the limiting groove 811. One end of the elastic element 83 is mounted on the first mounting base 81, and the ball bearing 85 is connected to the opposite end of the elastic element 83. Thus, the ball bearing 85 and the elastic element 83 are fixedly mounted on the first mounting base 81 and rotate with the rotation of the first mounting base 81. When the inner tray 70 causes the first mounting base 81 to rotate relative to the mounting plate 50, the ball bearing 85 and the elastic element 83 rotate relative to the mounting plate 50. The elastic element can specifically be a spring or other elastic structure.

[0045] Please combine Figure 4The mounting plate 50 has a plurality of first mating parts 51 protruding on the side opposite to the ball bearing 85. When the motion component rotates around its axis, the inner tray 70 drives the first mounting base 81 to rotate relative to the mounting plate 50. When the inner tray 70 drives the first mounting base 81 to rotate relative to the mounting plate 50, the ball bearing 85 and the elastic element 83 rotate relative to the first mating parts 51 of the mounting plate 50. The first mating parts 51 can be protrusions on the mounting plate 50, forming an undulating state. When the ball bearing 85 moves between the protruding first mating parts 51 and the wall of the mounting plate 50, it generates damping and an impact sound, providing feedback to the user. The first mating parts 51 can be regularly arranged on the side of the mounting plate 50 opposite to the ball bearing 85. When the user rotates the outer casing, the outer casing drives the inner tray 70 to rotate the first mounting base 81 relative to the mounting plate 50. The ball bearing 85 will move among the multiple first mating parts 51, so the user can judge the exact angle of rotation by feel, which is convenient for adjusting the gear. In addition, by regularly arranging the first mating parts 51 on the side of the mounting plate 50 opposite to the ball bearing 85, each time the user turns the knob, it will rotate by a preset angle, which is convenient for gear adjustment.

[0046] Please combine Figure 5 In one specific embodiment, the damping assembly includes a second mounting base 86 and a damping bearing 87. The second mounting base 86 is limitedly connected to the first sidewall 71. The inner ring of the damping bearing 87 is fixed to the second mounting base 86, and the outer ring of the damping bearing 87 is fixed to the mounting plate 50. When the motion assembly rotates about the axis of the motion assembly, the inner tray 70 drives the second mounting base 86 to rotate relative to the mounting plate 50.

[0047] In this specific embodiment, the damping assembly includes a second mounting base 86 and a damping bearing 87. The second mounting base 86 is limitedly connected to the first sidewall 71. The specific method of the limited connection between the second mounting base and the first sidewall 71 can be found in the description of the limited connection between the first mounting base and the first sidewall 71 above. Therefore, when the outer shell 10 rotates, the outer shell drives the inner tray 70 to rotate, and the inner tray 70 further drives the second mounting base 86 to rotate around the axis of the mounting plate. The inner ring of the damping bearing 87 is fixed to the second mounting base 86, and the outer ring of the damping bearing 87 is fixed to the mounting plate 50. Thus, the inner ring of the damping bearing 87 rotates with the rotation of the first mounting base 81. When the inner tray 70 drives the second mounting base 86 to rotate relative to the mounting plate 50, the inner ring and outer ring of the damping bearing 87 rotate relative to each other. When the outer ring and inner ring of the damping bearing 87 rotate relative to each other, damping is generated, allowing the user to finely adjust the gear by turning the knob. The user can turn the knob to allow the outer ring and inner ring of the damping bearing 87 to rotate at any angle within the rotation range, resulting in higher adjustment accuracy. Specifically, the damping bearing 87 can be a resistance oil bearing.

[0048] Please combine Figure 6 , Figure 7 In one specific embodiment, the damping assembly includes a third mounting base 88 and a spring piece 89. The third mounting base 88 is limitedly connected to the first side wall 71, and the spring piece 89 is fixed to the third mounting base 88. The mounting plate 50 has a plurality of second mating parts 52 protruding on the side opposite to the spring piece, which mate with the spring piece 89. When the motion assembly rotates around the axis of the motion assembly, the inner tray 70 drives the third mounting base 88 to rotate relative to the mounting plate 50.

[0049] Please combine Figure 6 , Figure 7In this specific embodiment, the damping component includes a third mounting base 88 and a spring piece 89. The third mounting base 88 is limitedly connected to the first sidewall 71. The specific method of the limited connection between the third mounting base and the first sidewall 71 can be found in the description of the limited connection between the first mounting base and the first sidewall 71 above. Therefore, when the outer shell 10 rotates, the outer shell drives the inner tray 70 to rotate, and the inner tray 70 further drives the third mounting base 88 to rotate around the axis of the mounting plate. The spring piece 89 is fixed to the third mounting base 88. The mounting plate 50 has a plurality of second mating parts 52 protruding on the side opposite to the spring piece, which mate with the third mounting base 88. When the motion component rotates around its axis, the inner tray 70 drives the third mounting base 88 to rotate relative to the mounting plate 50. Thus, the spring piece 89 is fixedly mounted on the third mounting base 88 and rotates with the rotation of the third mounting base 88. When the inner tray 70 drives the third mounting base 88 to rotate relative to the mounting plate 50, the third mounting base 88 also rotates relative to the mounting plate 50. The mounting plate 50 has a plurality of second mating portions 52 protruding on the side opposite to the spring piece, which mate with the third mounting base 88. When the moving component rotates around its axis, the inner tray 70 drives the third mounting base 88 to rotate relative to the mounting plate 50. When the inner tray 70 drives the third mounting base 88 to rotate relative to the mounting plate 50, the spring piece rotates relative to the second mating portions 52 of the mounting plate 50. The second mating portions 52 can be protrusions on the mounting plate 50, forming an undulating state with the wall surface of the mounting plate 50. When the spring piece moves between the protruding second mating portions 52 and the wall surface of the mounting plate 50, it generates damping and an impact sound, providing feedback to the user. The second mating portions 52 can be regularly arranged on the side of the mounting plate 50 opposite to the spring piece for easy adjustment of gear positions.

[0050] Please combine Figure 8 This application also provides an electrical device, which includes, as described above, an electrical appliance. Figure 1 The rotary device 100 and panel 305 are shown. The rotary device 100 is the rotary device 100 described in any of the above embodiments and implementations. The rotary device 100 is mounted on the panel 305, and the collision component is fixed relative to the panel 305.

[0051] In the electrical device provided in this application embodiment, the knob device can be magnetically mounted on the panel 305, or it can be mounted on the panel 305 in other ways. The panel material can be glass, etc. By rotating the outer casing, the outer casing drives the first magnetic element 30 to rotate, thereby enabling the moving component to rotate around the axis of the moving component. Since the collision component of the knob device is fixed relative to the panel 305, the outer casing drives the first magnetic element 30 to rotate relative to the collision component.

[0052] In some embodiments, the electrical device further includes a magnetic induction component 300, which is mounted on the panel 305 on the side opposite to the knob device. The magnetic induction component 300 includes a magnetic sensor 301, which is arranged axially with the first magnetic element 30. The first magnetic element 30 includes an N pole and a S pole arranged along a first direction, which is at an angle to the axial direction.

[0053] In these embodiments, the electrical appliance further includes a magnetic induction component 300, which cooperates with the first magnetic element 30 of the knob device to sense changes in magnetic field strength when the knob device 100 is rotated or pressed, thereby adjusting the operating state of the electrical appliance. Specifically, the electrical appliance may be an induction cooker, oven, etc. The knob device is mounted on a panel 305, and the magnetic induction component 300 is mounted on the side of the panel 305 opposite to the knob device, possibly inside the induction cooker. The magnetic induction component 300 includes a magnetic sensor 301, which is arranged axially with the first magnetic element 30. The first magnetic element 30 includes N poles and S poles arranged along a first direction, which is angled to the axial direction. Thus, when the knob device is rotated, the outer casing rotates, causing the first magnetic element 30 to rotate. As the first magnetic element 30 rotates, the magnetic sensor 301 senses changes in magnetic field strength, thereby adjusting the setting of the electrical appliance and thus regulating different operating states, such as the heating efficiency.

[0054] When the knob is pressed, the outer casing 10 moves towards the side closest to the collision component. This causes the outer casing 10 to move the first magnetic element 30 closer to the magnetic sensor 301. The magnetic sensor 301 senses the change in magnetic field strength, thereby adjusting the setting of the electrical appliance and thus regulating different operating states. When the knob is no longer pressed, the first magnetic element 30 moves away from the magnetic sensor 301, and the magnetic sensor 301 senses the change in magnetic field strength, again adjusting the setting of the electrical appliance and thus regulating different operating states, such as turning the appliance on or off. This allows the appliance to be started by pressing the knob and its heating efficiency to be adjusted by rotating it. The magnetic sensor 301 can be a Hall element or similar device capable of sensing changes in magnetic field strength.

[0055] Please combine Figure 9 In some embodiments, the knob device further includes a second magnetic element 20, which is installed between the collision assembly and the panel 305. The magnetic induction assembly further includes a third magnetic element 303 that cooperates with the second magnetic element 20. The third magnetic element 303 is located between the panel 305 and the magnetic sensor 301. The second magnetic element 20 and the third magnetic element 303 attract each other to attract the knob device to the panel 305.

[0056] In these embodiments, a second magnetic element 20 and a third magnetic element 303 are provided to magnetically attach the knob to the panel 305. The knob can be magnetically attached to electrical equipment, thus mounting it on the panel 305 of the electrical equipment. When it is necessary to change the controlled device, the knob can be magnetically attached to another device, making it convenient to use.

[0057] The second magnetic component 20 is installed between the collision component and the panel 305 and is fixed relative to the collision component and the panel 305. The third magnetic component 303 is located between the panel 305 and the magnetic sensor 301. The third magnetic component 303 is fixed relative to the panel 305, and thus fixed relative to the second magnetic component 20.

[0058] When the collision component 60 is configured as a bearing, if the user cannot accurately rotate the housing of the knob device around its axis, the guide portion will deviate from the axis and tilt, abutting against the inner ring of the bearing. This causes the inner ring of the bearing to rotate. Since the inner ring of the bearing is rotatable relative to the outer ring, the outer ring remains stationary while the inner ring rotates. Therefore, the outer ring will not cause the mounting plate 50 to rotate, keeping the entire collision assembly stationary and making the entire knob device more stable. It is easily understood that in this embodiment, to maintain the stability of the magnetic attraction, the magnetic poles of the second magnetic component 20 and the third magnetic component 303 are relatively fixed. If the collision component rotates, it will cause the second magnetic component 20 to rotate relative to the third magnetic component 303, potentially causing magnetic attraction failure. Furthermore, if the second magnetic component 20 rotates relative to the third magnetic component 303, it will also cause the magnetic sensor 301 to sense a change in the magnetic field strength, resulting in inaccurate adjustment of the electrical equipment. Therefore, by configuring the collision component 60 as a bearing, the entire collision assembly remains stationary, making the entire knob device more stable and allowing for more precise adjustment of the knob device.

[0059] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0060] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more features.

[0061] The knob device and electrical equipment provided in the embodiments of this application have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this application. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of this application. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this application. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. A knob device, characterized in that, The knob device includes: A motion component includes a housing and a first magnetic element, the first magnetic element being fixedly connected to the housing, and the motion component being rotatable about the axis of the motion component; A collision assembly, at least partially located between the housing and the first magnetic element; The motion component has a first state and a second state. In the first state, the outer shell is opposite to and spaced apart from the collision component, and the outer shell can move toward the side closer to the collision component to collide with the collision component. In the second state, the first magnetic element is opposite to and spaced apart from the collision component, and the first magnetic element can move toward the side closer to the collision component to be magnetically attracted to the collision component. The knob device includes a guide portion disposed on the side of the housing facing the collision assembly, the first magnetic element is fixed to the guide portion on the side away from the housing, a portion of the first magnetic element protrudes from the guide portion so that the first magnetic element and the collision assembly are magnetically attracted, the collision assembly is sleeved on the guide portion and is gap-fitted with the guide portion; The collision assembly includes a mounting plate and a collision element. The collision element is disposed between the housing and the first magnetic element. The collision element is configured as a bearing. The bearing includes an inner bearing ring and an outer bearing ring connected to each other. The inner bearing ring is rotatable relative to the outer bearing ring. The inner bearing ring is sleeved on the outer periphery of the guide portion and has a clearance fit with the guide portion. The upper axial limit of the outer bearing ring is located at the mounting plate. In a first state, the housing moves toward the side closer to the collision element to collide with the collision element. In a second state, the first magnetic element moves toward the side closer to the collision element to attract the collision element. The motion component also includes an inner tray fixed to the housing, the first sidewall of the inner tray extending along the side close to the collision component, and the knob device also includes a damping component mounted on the mounting plate facing the housing and limitedly connected to the first sidewall, so that when the motion component rotates about the axis of the motion component, the inner tray drives the damping component to rotate relative to the mounting plate. The damping assembly includes a first mounting base, an elastic element, and a ball bearing. The first mounting base is limited and connected to the first side wall. One end of the elastic element is mounted on the first mounting base, and the ball bearing is connected to the opposite end of the elastic element. The mounting plate has a plurality of first mating parts protruding on the side opposite to the ball bearing, which mate with the ball bearing. When the motion assembly rotates around the axis of the motion assembly, the inner tray drives the first mounting base to rotate relative to the mounting plate.

2. The knob device according to claim 1, characterized in that, The damping assembly includes a second mounting base and a damping bearing. The second mounting base is limitedly connected to the first side wall. The inner ring of the damping bearing is fixed to the second mounting base, and the outer ring of the damping bearing is fixed to the mounting plate. When the motion assembly rotates around the axis of the motion assembly, the inner tray drives the second mounting base to rotate relative to the mounting plate.

3. The knob device according to claim 1, characterized in that, The damping assembly includes a third mounting base and a spring plate. The third mounting base is limited and connected to the first side wall. The spring plate is fixed to the third mounting base. The mounting plate has a plurality of second mating parts protruding on the side opposite to the spring plate, which cooperate with the spring plate. When the motion assembly rotates around the axis of the motion assembly, the inner tray drives the third mounting base to rotate relative to the mounting plate.

4. An electrical appliance, characterized in that, The electrical device includes a knob device and a panel, wherein the knob device is the knob device according to any one of claims 1-3, the knob device is mounted on the panel, and the collision component is fixed relative to the panel.

5. The electrical equipment according to claim 4, characterized in that, The electrical device further includes a magnetic induction component, which is installed on the side of the panel opposite to the knob device. The magnetic induction component includes a magnetic sensor, which is arranged axially with the first magnetic element. The first magnetic element includes an N pole and a S pole arranged along a first direction, which is at an angle to the axial direction.

6. The electrical equipment according to claim 5, characterized in that, The knob device further includes a second magnetic element, which is installed between the collision component and the panel. The magnetic induction component further includes a third magnetic element that cooperates with the second magnetic element. The third magnetic element is located between the panel and the magnetic sensor. The second magnetic element and the third magnetic element attract each other to attach the knob device to the panel.

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