Knob device, controller and electrical equipment

Abstract

The utility model belongs to the technical field of controllers, and particularly relates to a rotary knob device, a controller and electrical equipment, the rotary knob device comprises a damping part, the damping part is provided with a first mounting cavity, the inner wall surface of the first mounting cavity is provided with a plurality of damping grooves, and the plurality of damping grooves are arranged at intervals along the circumferential direction of the inner wall surface; the rotary knob assembly is arranged in the first mounting cavity, the rotary knob assembly comprises a rotary connecting shaft and a rotary guide buckle, the rotary connecting shaft is provided with a mounting groove, the rotary guide buckle is movably arranged in the mounting groove, and the side, facing the inner wall surface, of the rotary guide buckle is provided with a boss used for being matched with the damping groove; and the elastic piece is arranged in the mounting groove and abuts against the side, away from the boss, of the rotary guide buckle, and the elastic piece is used for extruding the rotary guide buckle so that the boss can slide into or be separated from the damping groove under the condition that the rotary connecting shaft rotates in the circumferential direction of the first mounting cavity. Through the technical scheme of the invention, the knob device can realize step adjustment, and the use experience of a user is improved.

Description

Technical Field

[0001] The present application belongs to the technical field of controllers, and in particular relates to a knob device, a controller and an electrical device. Background Art

[0002] At present, magnetic control knobs are mostly used in new gas stove products such as kitchen appliances, which mainly use stepless adjustment knob devices to replace traditional encoder knobs. However, during the use of the above-mentioned knob device, it is often necessary to observe the rotation angle of the magnetic control knob with human eyes to adjust the size of the gear, lacking a step-by-step adjustment function, and the user experience is low. Utility Model Content

[0003] The purpose of this application is to at least solve the problem that the knob device lacks a step-by-step adjustment function, resulting in a low user experience. This purpose is achieved by:

[0004] A first aspect of the present application provides a knob device, comprising: a damping member, the damping member having a first mounting cavity, the inner wall surface of the first mounting cavity being provided with a plurality of damping grooves, the plurality of damping grooves being arranged at intervals along the circumferential direction of the inner wall surface;

[0005] A knob assembly is rotatably disposed in the first mounting cavity, the knob assembly comprises a rotating connecting shaft and a rotating guide buckle, the rotating connecting shaft is provided with a mounting groove, the rotating guide buckle is movably disposed in the mounting groove, and the rotating guide buckle is provided with a boss for matching with the damping groove;

[0006] An elastic member is arranged in the installation groove and abuts against a side of the rotating guide buckle away from the boss, and the elastic member is used for pressing the rotating guide buckle.

[0007] According to the knob device provided in the first aspect of the present application, a damping groove is provided on the inner surface of the first mounting cavity of the damping member, and a rotatable knob assembly is provided in the first mounting cavity. The rotating guide buckle of the knob assembly has a boss protruding toward the inner wall surface of the first mounting cavity. The boss is used to engage with the damping groove and can be inserted into any damping groove. In this way, when the user drives the knob assembly to rotate relative to the first mounting cavity, the boss moves from one of the damping grooves to another damping groove adjacent to it, which can provide the user with a sense of damping, so that the user can know the degree of rotation of the knob assembly without using glasses to observe the rotation angle of the knob, so as to grasp the gear control of the knob device, thereby improving the user's usage experience.

[0008] In addition, the knob device according to the present application may also have the following additional technical features:

[0009] In some embodiments of the present application, adjacent damping grooves are connected by a protrusion transition, and the surface of the protrusion is an arc-shaped convex surface or a plane.

[0010] In some embodiments of the present application, the bottom wall surface of the damping groove is an arc-shaped concave surface or a flat surface.

[0011] In some embodiments of the present application, along the radial direction of the rotary connection shaft, the maximum distance between the damping groove and the protrusion is set in the range of 0.1 mm to 0.5 mm.

[0012] In some embodiments of the present application, a line connecting the center of the first mounting cavity and the centers of two adjacent damping grooves forms a first line segment and a second line segment, respectively, and an angle between the first line segment and the second line segment is set in the range of 15° to 50°.

[0013] In some embodiments of the present application, a guide column is provided on the side of the rotating guide buckle facing away from the boss, and at least a portion of the elastic member is sleeved on the outer peripheral side of the guide column.

[0014] In some embodiments of the present application, the rotating connecting shaft is provided with a mounting notch, the mounting notch is communicated with the mounting groove and is adapted to the size of the boss, the boss protrudes out of the mounting notch and is used to be plugged into and cooperate with the damping groove.

[0015] In some embodiments of the present application, the knob device further includes a magnet, a limiting groove is provided at the bottom of the rotating connecting shaft, and the magnet is disposed in the limiting groove.

[0016] In some embodiments of the present application, along a direction perpendicular to the axis of the rotating connection shaft, the cross-sectional shape of the first installation cavity is annular, and the outer surface of the rotating connection shaft is adapted to the shape of the first installation cavity.

[0017] In some embodiments of the present application, the knob assembly further includes a knob housing, a second mounting cavity is provided on a side of the knob housing facing the damping member, one end of the rotary connection shaft is provided in the second mounting cavity, and the other end is located in the first mounting cavity;

[0018] And / or, a clamping portion is provided at one end of the rotating connecting shaft located in the first mounting cavity, and the clamping portion protrudes in a direction away from the axis of the rotating connecting shaft. An annular groove is provided at the bottom of the damping member, and the clamping portion is inserted into the annular groove.

[0019] A second aspect of the present application provides a controller, comprising:

[0020] A controller upper cover, wherein a magnetic induction element is disposed in the controller upper cover; and

[0021] As in any one of the embodiments of the first aspect, the knob device is arranged on the upper cover of the controller, and the magnet of the knob device corresponds to the magnetic induction element in position.

[0022] A third aspect of the present application provides an electrical device, comprising the controller described in the implementation of the second aspect, wherein the controller is electrically connected to a control system of the electrical device.

[0023] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the detailed description of the preferred embodiments below. The accompanying drawings are only for the purpose of illustrating the preferred embodiments and are not to be considered as limiting the present application. In addition, the same reference numerals are used throughout the accompanying drawings to represent the same components. Among them:

[0025] Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the detailed description of the preferred embodiments below. The accompanying drawings are only for the purpose of illustrating the preferred embodiments and are not to be considered as limiting the present application. In addition, the same reference numerals are used throughout the accompanying drawings to represent the same components. Among them:

[0026] Figure 1 is a schematic diagram of the decomposed structure of a controller according to an embodiment of the present application;

[0027] Figure 2 A schematic diagram of an assembly structure of a controller according to an embodiment of the present application from one perspective;

[0028] Figure 3 is a partial cross-sectional structural schematic diagram of a controller according to an embodiment of the present application;

[0029] Figure 4 This is a schematic diagram of a structure in which a damper is arranged on a controller cover according to an embodiment of the present application;

[0030] Figure 5 It is a schematic structural diagram of a rotating connecting shaft according to an embodiment of the present application.

[0031] The reference numerals in the accompanying drawings represent the following:

[0032] 1000. controller;

[0033] 100, knob device; 200, controller cover; 300, magnetic induction element;

[0034] 10. damping member; 11. first mounting cavity; 111. damping groove; 112. protrusion;

[0035] 21. Rotating connecting shaft; 22. Rotating guide buckle; 23. Magnet; 24. Knob housing; 211. Limiting groove; 212. Mounting groove; 213. Mounting notch; 214. Clamping part; 2111. Magnet fixing buckle; 221. Boss; 222. Guide column;

[0036] 30. Elastic parts. DETAILED DESCRIPTION

[0037] The exemplary embodiments of the present application will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present application are shown in the accompanying drawings, it should be understood that the present application can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided in order to enable a more thorough understanding of the present application and to fully convey the scope of the present application to those skilled in the art.

[0038] It should be understood that the terms used herein are only for the purpose of describing specific example embodiments and are not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms "one", "an" and "said" as used herein may also be meant to include plural forms. The terms "include", "comprise", "contain", and "have" are inclusive, and therefore specify the existence of stated features, steps, operations, elements and / or parts, but do not exclude the existence or addition of one or more other features, steps, operations, elements, parts, and / or combinations thereof. The method steps, processes, and operations described herein are not interpreted as necessarily requiring them to be performed in the specific order described or illustrated, unless the execution order is clearly indicated. It should also be understood that additional or alternative steps may be used.

[0039] Although the terms first, second, third, etc. can be used in the text to describe multiple elements, components, regions, layers and / or sections, these elements, components, regions, layers and / or sections should not be limited by these terms. These terms can only be used to distinguish an element, component, region, layer or section from another region, layer or section. Unless the context clearly indicates, terms such as "first", "second" and other numerical terms do not imply order or sequence when used in the text. Therefore, the first element, component, region, layer or section discussed below can be referred to as the second element, component, region, layer or section without departing from the teaching of the example embodiments.

[0040] For ease of description, spatial relative terms may be used herein to describe the relationship of one element or feature relative to another element or feature as shown in the figure, such as "inside", "outside", "inner side", "outer side", "below", "below", "above", "above", etc. Such spatial relative terms are intended to include different orientations of the device in use or operation in addition to the orientation depicted in the figure. For example, if the device in the figure is turned over, then the elements described as "below other elements or features" or "below other elements or features" will subsequently be oriented as "above other elements or features" or "above other elements or features". Therefore, the example term "below..." can include both upper and lower orientations. The device can be oriented otherwise (rotated 90 degrees or in other directions) and the spatial relative descriptors used in the text are interpreted accordingly.

[0041] See also Figures 1 to 4 The first aspect of the present application provides a knob device 100 for a controller 1000, wherein the controller 1000 has a controller cover 200. The knob device 100 includes a damping member 10, a knob assembly and an elastic member 30.

[0042] Among them, the damping member 10 has a first mounting cavity 11, and the inner wall surface of the first mounting cavity 11 is provided with a plurality of damping grooves 111, and the plurality of damping grooves 111 are arranged at intervals along the circumference of the inner wall surface; the knob assembly is arranged in the first mounting cavity 11, and the knob assembly includes a rotating connecting shaft 21 and a rotating guide buckle 22, the rotating connecting shaft 21 is provided with a mounting groove 212, the rotating guide buckle 22 can be movably arranged in the mounting groove 212, and the rotating guide buckle 22 is provided with a boss 221 for matching with the damping groove 111; the elastic member 30 is arranged in the mounting groove 212, and abuts against the side of the rotating guide buckle 22 away from the boss 221, and the elastic member 30 is used to squeeze the rotating guide buckle 22 so that when the rotating connecting shaft 21 rotates along the circumference of the first mounting cavity 11, the boss 221 slides into or out of the damping groove 111.

[0043] In this embodiment, the damping member 10 is used to be arranged on the controller upper cover 200 .

[0044] Part of the knob assembly is installed in the first installation cavity 11 of the damping member 10 and can reciprocate along the circumference of the first installation cavity 11 .

[0045] Exemplarily, the elastic member 30 is a spring, a spring sheet or other elastic member, one end of the elastic member 30 abuts against the wall of the mounting groove 212, and the other end abuts against the side of the rotating guide buckle 22 away from the boss 221. It can be understood that when the knob assembly rotates, that is, when the boss 221 moves from one damping groove 111 to another damping groove 111, the elastic member 30 will be compressed, so that the boss 221 can be separated from the previous damping groove 111. When the boss 221 moves to the corresponding position of the other damping groove 111, the elastic member 30 releases elastic potential energy and drives the boss 221 to be inserted into the other damping groove 111.

[0046] For example, the damping member 10 and the rotating guide buckle 22 can be made of synthetic plastic (such as polyoxymethylene plastic) or polycarbonate material, or made of thermoplastic resin and glass fiber composite material. In this way, when the user uses the rotating guide buckle 22 and the damping member 10 made of the above-mentioned hard plastic or composite material to adjust the gear position in steps through the knob device 100, that is, when the knob assembly is driven to rotate, the boss 221 can hit each damping groove 111 under the drive of the elastic member 30 and emit a crisp collision sound, so that the user can clearly feel the feedback brought by the gear change, and it is not easy to cause misoperation.

[0047] According to the knob device 100 provided in the first aspect of the present application, a damping groove 111 is provided on the inner surface of the first mounting cavity 11 of the damping member 10, and a rotatable knob assembly is provided in the first mounting cavity 11. The rotating guide buckle 22 of the knob assembly has a boss 221 protruding toward the inner wall surface of the first mounting cavity 11. The boss 221 is used to be plugged into and cooperate with the damping groove 111, and can be inserted into any damping groove 111. In this way, when the user drives the knob assembly to rotate relative to the first mounting cavity 11, the boss 221 moves from one of the damping grooves 111 to another damping groove 111 adjacent thereto, thereby providing the user with a sense of damping, so that the user can know the degree of rotation of the knob assembly without using glasses to observe the rotation angle of the knob, so as to grasp the size of the control gear of the knob device 100, thereby improving the user's usage experience.

[0048] See also Figure 3 and Figure 4 According to some embodiments of the present application, adjacent damping grooves 111 are transitionally connected via protrusions 112 , and the surface of the protrusions 112 is an arc-shaped convex surface or a plane.

[0049] In this embodiment, the protrusion 112 is connected between two adjacent damping grooves 111 and protrudes toward the center direction of the first mounting cavity 11, playing a transition connection role, so that when the knob assembly is driven to rotate, the boss 221 moves from one damping groove 111 to another damping groove 111, thereby improving the smoothness of the rotation of the knob assembly.

[0050] Specifically, the surface of the protrusion 112 is an arc-shaped convex surface protruding toward the center of the first installation cavity 11 , thereby facilitating the contact movement of the boss 221 along the surface of the protrusion 112 , and helping to improve the stability of the movement of the boss 221 .

[0051] According to some embodiments of the present application, the bottom wall surface of the damping groove 111 is a plane or an arc-shaped concave surface.

[0052] In this embodiment, it can be understood that when the protrusion 112 is an arc-shaped convex surface protruding toward the center of the first installation cavity 11, the bottom wall surface of the damping groove 111 can be a plane. Of course, the bottom wall surface of the damping groove 111 can also be an arc-shaped concave surface, or an arc-shaped concave surface. Since both can achieve the purpose of the present application, they should all be within the protection scope of the present application.

[0053] According to some embodiments of the present application, along the radial direction of the rotary connection shaft 21 , the maximum spacing between the damping groove 111 and the protrusion 112 is set in the range of 0.1 mm to 0.5 mm.

[0054] In this embodiment, that is, along the radial direction of the rotating connecting shaft 21, the distance between the top end surface of the protrusion 112 and the bottom wall surface of the damping groove 111 is set in the range of 0.1mm to 0.5mm, so that the protruding distance of the protrusion 112 is shorter, which helps to reduce the space occupied by the protrusion 112 in the first mounting cavity 11.

[0055] See also Figure 4 According to some embodiments of the present application, the line connecting the center of the first mounting cavity 11 and the centers of two adjacent damping grooves 111 respectively forms a first line segment and a second line segment, and the angle β between the first line segment and the second line segment is set in the range of 15° to 50°.

[0056] In this embodiment, it can be understood that the line connecting the center of one of the adjacent damping grooves 111 and the center of the first installation cavity 11 is the first line segment, and the line connecting the center of the other one and the center of the first installation cavity 11 is the second line segment. The angle between the first line segment and the second line segment is set in the range of 15° to 50°, so that the number of levels can be set to at least 24 levels. The user can achieve one level of adjustment every time he rotates at least 15°, which effectively improves the user experience.

[0057] See also Figure 1 and Figure 4 According to some embodiments of the present application, a guide column 222 is provided on the side of the rotating guide buckle 22 facing away from the boss 221 , and at least a portion of the elastic member 30 is sleeved on the outer peripheral side of the guide column 222 .

[0058] In this embodiment, a guide column 222 is provided on the side of the rotating guide buckle 22 away from the boss 221, and the elastic member 30 is sleeved on the outer peripheral side of the guide column 222, so that the guide column 222 can play a guiding role, so that the elastic member 30 can be compressed along its length direction, thereby improving the stability and reliability of the elastic member 30 driving the boss 221 of the rotating guide buckle 22 to move.

[0059] See also Figure 4 and Figure 5 According to some embodiments of the present application, the rotating connecting shaft 21 is provided with a mounting notch 213, which is communicated with the mounting groove 212 and is adapted to the size of the boss 221. The boss 221 protrudes out of the mounting notch 213 and is used to be plugged in and matched with the damping groove 111.

[0060] In this embodiment, when the rotating guide buckle 22 is installed in the mounting groove 212, the boss 221 can protrude from the mounting notch 213 so that it can abut against the inner wall surface of the first mounting cavity 11 under the drive of the elastic member 30, so that during the rotation of the rotating connecting shaft 21, the boss 221 can move from one damping groove 111 to another damping groove 111 and produce a collision tactile sensation.

[0061] See also Figure 4 and Figure 5 According to some embodiments of the present application, the knob device 100 further includes a magnet 23 , a limiting groove 211 is provided at the bottom of the rotating connecting shaft 21 , and the magnet 23 is disposed in the limiting groove 211 .

[0062] In this embodiment, illustratively, a limiting rib is provided in the limiting groove 211 , and the limiting rib is supported below the magnet 23 to limit the magnet 23 so as to improve the reliability of the installation and fixation of the magnet 23 .

[0063] Among them, the magnet 23 is used in conjunction with the magnetic sensing element 300 in the controller cover 200. When the rotating connecting shaft 21 rotates, the magnetic sensing element 300 can respond to the magnetic field changes of the magnet 23 and convert it into an electrical signal. The electric control board in the controller can perform corresponding control actions based on the electrical signal.

[0064] In some embodiments, a side wall of the limiting groove 211 is provided with a magnet fixing buckle 2111 , and the magnet fixing buckle 2111 is used to support the side of the magnet 23 facing the magnetic sensing element 300 .

[0065] See also Figure 1 and Figure 4 According to some embodiments of the present application, the first installation cavity 11 is annular in shape, the outer surface of the rotary connection shaft 21 is adapted to the shape of the first installation cavity 11 , and there is a gap between the outer surface of the rotary connection shaft 21 and the inner surface of the first installation cavity 11 .

[0066] In this embodiment, along the axial direction of the first mounting cavity 11, the cross-sectional shape of the first mounting cavity 11 is annular, the shape of the outer surface of the rotating connecting shaft 21 is also annular, and there is a gap between the outer surface of the rotating connecting shaft 21 and the inner surface of the first mounting cavity 11, thereby reducing the wear or jamming caused by the contact between the rotating connecting shaft 21 and the inner wall surface of the first mounting cavity 11, which helps to increase the service life of the product.

[0067] See also Figure 1 and Figure 2 According to some embodiments of the present application, the knob assembly also includes a knob housing 24, and a second mounting cavity is provided on the side of the knob housing 24 facing the damping member 10, one end of the rotating connecting shaft 21 is provided in the second mounting cavity, and the other end is located in the first mounting cavity 11.

[0068] In this embodiment, it can be understood that the knob housing 24 is disposed on the outer peripheral side of the damping member 10, and is used to drive the rotary connection shaft 21 to rotate relative to the damping member 10. Exemplarily, the rotary connection shaft 21 is coaxially arranged with the knob housing 24. The outer surface of the knob housing 24 is provided with an anti-slip portion, such as a protective rib or an anti-slip thread, etc., which plays a role in increasing friction.

[0069] In some embodiments, a decorative groove is provided on one side of the knob housing 24 away from the rotary connection shaft 21, and a decorative piece is provided in the decorative groove. The decorative piece can be a decorative glass, a decorative plate, etc., to achieve a beautifying effect.

[0070] See also Figure 5 According to some embodiments of the present application, a clamping portion 214 is provided at one end of the rotating connection shaft 21 located in the first installation cavity 11, and the clamping portion 214 protrudes in a direction away from the axis of the rotating connection shaft 21. An annular groove is provided at the bottom of the damping member 10, and the clamping portion 214 is inserted into the annular groove.

[0071] In this embodiment, the clamping portion 214 provided at one end of the rotating connecting shaft 21 located in the first mounting cavity 11 is clamped in the annular groove, thereby reducing the risk of the rotating connecting shaft 21 being separated from the first mounting cavity 11. At the same time, the clamping portion 214 can slide back and forth along the annular groove, so that the rotating connecting shaft 21 can reciprocate relative to the damping member 10.

[0072] See also Figure 1 and Figure 2 The second aspect of the present application provides a controller 1000, comprising a controller cover 200 and a knob device 100 as in any one of the embodiments of the first aspect. The controller cover 200 is provided with an electric control board, and the electric control board is provided with a magnetic induction element 300; the knob device 100 is provided on the controller cover 200, and the magnet 23 of the knob device 100 corresponds to the magnetic induction element 300 in position.

[0073] The controller 1000 provided in the second aspect of the present application includes the knob device 100 described in any one of the first aspect embodiments, and thus has the technical effects of any of the above embodiments, which will not be described in detail here.

[0074] The third aspect of the present application proposes an electrical device, including the controller 1000 of the embodiment of the second aspect, and the controller 1000 is electrically connected to the control system of the electrical device.

[0075] The electrical device provided in the third embodiment of the present application may be, for example, an air conditioner, a multi-split unit, a heat pump, or other equipment for heating or cooling. Since the controller 1000 described in the second embodiment is included, the technical effects of any of the above embodiments are obtained, which will not be described in detail here.

[0076] The above is only a preferred specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed in the present application should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A knob device, characterized in that: include: A damping member, the damping member having a first installation cavity, the inner wall surface of the first installation cavity is provided with a plurality of damping grooves, and the plurality of damping grooves are arranged at intervals along the circumferential direction of the inner wall surface; A knob assembly is rotatably disposed in the first mounting cavity, the knob assembly comprises a rotating connecting shaft and a rotating guide buckle, the rotating connecting shaft is provided with a mounting groove, the rotating guide buckle is movably disposed in the mounting groove, and the rotating guide buckle is provided with a boss for matching with the damping groove; An elastic member is arranged in the installation groove and abuts against a side of the rotating guide buckle away from the boss, and the elastic member is used for pressing the rotating guide buckle.

2. The knob device according to claim 1, characterized in that: Adjacent damping grooves are transitionally connected via protrusions, and the surface of the protrusions is an arc-shaped convex surface or a plane.

3. The knob device according to claim 1, characterized in that: The bottom wall surface of the damping groove is an arc-shaped concave surface or a flat surface.

4. The knob device according to claim 2, characterized in that: Along the radial direction of the rotary connection shaft, the maximum distance between the damping groove and the protrusion is set in the range of 0.1mm to 0.5mm.

5. The knob device according to any one of claims 1 to 4, characterized in that: A line connecting the center of the first installation cavity and the centers of two adjacent damping grooves forms a first line segment and a second line segment respectively, and an angle between the first line segment and the second line segment is set in the range of 15° to 50°.

6. The knob device according to any one of claims 1 to 4, characterized in that: A guide column is provided on the side of the rotating guide buckle away from the boss, and at least a portion of the elastic member is sleeved on the outer peripheral side of the guide column.

7. The knob device according to any one of claims 1 to 4, characterized in that: The rotating connecting shaft is provided with a mounting notch, the mounting notch is communicated with the mounting groove and matched with the size of the boss, the boss protrudes out of the mounting notch and is used for plugging and matching with the damping groove.

8. The knob device according to any one of claims 1 to 4, characterized in that: The knob device also includes a magnet. A limiting groove is provided at the bottom of the rotating connecting shaft, and the magnet is arranged in the limiting groove.

9. The knob device according to any one of claims 1 to 4, characterized in that: Along a direction perpendicular to the axis of the rotary connection shaft, the cross-sectional shape of the first installation cavity is annular, and the outer surface of the rotary connection shaft is adapted to the shape of the first installation cavity.

10. The knob device according to any one of claims 1 to 4, characterized in that: The knob assembly further comprises a knob housing, wherein a second mounting cavity is provided on a side of the knob housing facing the damping member, one end of the rotary connecting shaft is provided in the second mounting cavity, and the other end is located in the first mounting cavity; And / or, a clamping portion is provided at one end of the rotating connecting shaft located in the first mounting cavity, and the clamping portion protrudes in a direction away from the axis of the rotating connecting shaft. An annular groove is provided at the bottom of the damping member, and the clamping portion is inserted into the annular groove.

11. A controller, characterized in that: include: A controller upper cover, wherein a magnetic induction element is arranged inside the controller upper cover; and The knob device according to any one of claims 1 to 10, wherein the knob device is arranged on the upper cover of the controller, and the magnet of the knob device corresponds to the magnetic sensing element in position.

12. An electrical device, characterized in that: The invention comprises the controller as claimed in claim 11, wherein the controller is electrically connected to the control system of the electrical equipment.

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