Knob and clothes processing equipment

Abstract

The embodiment of the utility model discloses a rotary knob and clothes processing equipment, the rotary knob comprises a rotary knob body, a rotating assembly, a magnetic ring and a sensor, the rotating assembly and the rotary knob body are coaxially arranged and can rotate relative to the rotary knob body, the magnetic ring is installed on the rotating assembly and is coaxially arranged with the rotating assembly, and the sensor is installed on the rotary knob body and can rotate relative to the rotary knob body. The rotating assembly is arranged on the magnetic ring and used for being electrically connected with a controller of the clothes processing equipment, and the rotating assembly drives the magnetic ring to rotate relative to the sensor in the rotating process so that the sensor can transmit electric signals to the controller. According to the arrangement, compared with the encoder, the arrangement of circuit boards can be reduced through the cooperation of the magnetic ring and the sensor, so that the cost of the knob is reduced, and the size of the knob is reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of electrical equipment, in particular to a knob and a clothes treatment device. BACKGROUND

[0002] The knob is a module electrically connected with a controller of the clothes treatment device, and a user can adjust and control a certain function of the clothes treatment device by rotating the knob. For example, the knob is used to adjust a working module, a drying temperature, a drying time, a soaking time, a rotating speed, etc. of the clothes treatment device.

[0003] In the related art, an encoder is arranged on a rotating assembly of the knob. When the rotating assembly rotates relative to the knob body, the rotating assembly drives the encoder to rotate relative to a circuit board. The encoder sends a corresponding signal to the circuit board according to different rotating angles. The encoder and the circuit board need to be electrically connected with the controller of the clothes treatment device, and the circuit board transmits the received signal to the controller.

[0004] However, the encoder has a large volume and a high cost, which leads to a large volume and a high cost of the knob. CONTENT OF THE INVENTION

[0005] Embodiments of the present application provide a knob and a clothes treatment device, aiming to solve the problem of a large volume and a high cost of the knob.

[0006] To solve the above technical problem, the present application provides a knob applied to a clothes treatment device, which comprises:

[0007] a knob body;

[0008] a rotating assembly coaxially arranged with the knob body and rotatable relative to the knob body;

[0009] a magnetic ring installed on the rotating assembly and coaxially arranged with the rotating assembly; and

[0010] a sensor installed on the knob body and electrically connected with a controller of the clothes treatment device;

[0011] In the rotating process, the rotating assembly drives the magnetic ring to rotate relative to the sensor, so that the sensor transmits an electrical signal to the controller.

[0012] In some embodiments, the rotating assembly is recessed with a mounting ring groove towards a surface of the knob body, and the magnetic ring is installed in the mounting ring groove.

[0013] In some embodiments, the inner side wall of the mounting ring groove is provided with a positioning protrusion, and the inner side surface of the magnetic ring is provided with a positioning groove which is inserted with the positioning protrusion.

[0014] In some embodiments, the magnetic ring is an injection-molded ferrite.

[0015] Both the positioning protrusion and the positioning groove are provided with two.

[0016] The inner side wall of the mounting ring groove is provided with a foolproof groove, and the foolproof groove is arranged at intervals with the positioning protrusions in the circumferential direction of the rotating assembly. The inner side surface of the magnetic ring is provided with a foolproof protrusion which is inserted with the foolproof groove. The arc formed by the foolproof groove and one of the positioning protrusions in the circumferential direction of the rotating assembly is a first arc, and the arc formed by the foolproof groove and the other positioning protrusion in the circumferential direction of the rotating assembly is a second arc, wherein the first arc is different from the second arc.

[0017] In some embodiments, the knob further comprises:

[0018] An abutting structure is coaxially arranged with the rotating assembly, and the abutting structure comprises a plurality of abutting protrusions which are arranged at intervals in the circumferential direction of the rotating assembly, and an abutting groove is formed between adjacent two abutting protrusions.

[0019] One of the two surfaces of the knob body opposite to the rotating assembly is provided with an elastic structure, and the other of the two surfaces of the knob body opposite to the rotating assembly is provided with the abutting structure.

[0020] When the rotating assembly rotates relative to the knob body, the elastic structure slides along the abutting structure to alternately abut with the abutting protrusions and the abutting groove.

[0021] In some embodiments, the magnetic ring comprises a plurality of N magnetic poles and a plurality of S magnetic poles, and the N magnetic poles and the S magnetic poles are arranged alternately in the circumferential direction of the magnetic ring.

[0022] The abutting protrusions and the N magnetic poles or the S magnetic poles are arranged one by one in the radial direction of the rotating assembly.

[0023] In some embodiments, the abutting protrusions are provided with a guide arc surface at both ends in the circumferential direction of the rotating assembly, and the abutting protrusions are connected with the groove bottom of the adjacent abutting groove through the guide arc surface.

[0024] In some embodiments, the elastic structure is provided with an abutting arc surface at one end of the abutting structure, and the elastic structure is in sliding abutment with the abutting structure through the abutting arc surface.

[0025] In some embodiments, when the elastic structure extends into the abutting groove, the abutting arc surface is in abutment and tangential to the two adjacent guide arc surfaces.

[0026] In some embodiments, when the elastic structure extends into the abutting groove, the distance between the top of the abutting convex part and the groove bottom of the abutting groove is h.

[0027] The distance from the abutting position of the abutting arc surface and the guide arc surface to the top of the abutting convex part is a, wherein 40%≤a / h≤80%.

[0028] In some embodiments, the elastic structure comprises:

[0029] a top block movable in the direction close to or away from the abutting structure; and

[0030] an elastic member connected to the top block and making the top block have a tendency to move towards the abutting structure.

[0031] In some embodiments, the surface of the top block away from the abutting structure is concave with a receiving groove, and one end of the elastic member extends into the receiving groove; and / or,

[0032] the surface of the knob body and the one of the rotating assembly provided with the elastic member towards the abutting structure is concave with a mounting groove, one end of the elastic member extends into the mounting groove, and the other end of the elastic member is in abutment with the top block, and one end of the top block away from the abutting structure extends into the mounting groove.

[0033] In some embodiments, the number of elastic structures is multiple, and the multiple elastic structures are arranged in a circumferential direction of the rotating assembly.

[0034] In some embodiments, the abutting structure is located on the inner side of the magnetic ring.

[0035] The present application also provides a laundry treating apparatus comprising:

[0036] a housing;

[0037] a controller; and

[0038] the above-mentioned knob, wherein the knob body is mounted to the housing, the sensor is electrically connected to the controller, and the rotating assembly partially extends out of the housing.

[0039] The knob in the embodiments of the present application drives the magnetic ring to rotate through the rotating assembly to change the magnetic field around the sensor, so that the sensor transmits an electric signal to the controller of the clothes processing apparatus, and the clothes processing apparatus can be controlled to work. Compared with using an encoder to convert the rotation of the rotating assembly into an electric signal and transmit the electric signal to the controller of the clothes processing apparatus, the cooperation of the magnetic ring and the sensor can reduce the setting of the circuit board, thereby reducing the cost of the knob and reducing the volume of the knob. BRIEF DESCRIPTION OF DRAWINGS

[0040] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative effort on the basis of these drawings.

[0041] Figure 1 An exploded view of the knob provided in the embodiments of the present application;

[0042] Figure 2 A partial structure schematic view of the rotating assembly in the embodiments of the present application;

[0043] Figure 3 A structure schematic view of the magnetic ring in the embodiments of the present application;

[0044] Figure 4 A sectional view of the knob in the embodiments of the present application;

[0045] Figure 5 A partial structure schematic view of the magnetic ring and the rotating assembly in the embodiments of the present application;

[0046] Figure 6 A sectional view of the abutting structure and the elastic structure in the embodiments of the present application.

[0047] Explanation of reference signs:

[0048] 1, knob; 11, knob body; 12, rotating assembly; 121, mounting ring groove; 1211, positioning protrusion; 1212, foolproof recess; 13, magnetic ring; 131, N magnetic pole; 132, S magnetic pole; 133, positioning recess; 134, foolproof protrusion; 14, abutting structure; 141, abutting protrusion; 1411, guide arc surface; 142, abutting groove; 15, elastic structure; 151, abutting arc surface; 152, top block; 1521, accommodating groove; 153, elastic member; 16, mounting groove; 17, sensor; a, first arc; b, second arc. DETAILED DESCRIPTION

[0049] In order to make the purposes, technical solutions and advantages of the present application clearer, the present application will be further described in details below with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and not used to limit the present application.

[0050] Please refer to Figure 1 The embodiments of the present application provide a clothes processing apparatus, which can be a dryer, a washing machine, a washing-drying integrated machine or the like. The clothes processing apparatus comprises a shell, a controller and a knob 1. The controller is installed in the shell. The controller can be used to adjust the drying temperature, the drying time, the soaking time and the like of the clothes processing apparatus.

[0051] The knob 1 comprises a knob body 11, a rotating assembly 12, a magnetic ring 13 and a sensor 17. The knob body is installed in the shell. The shape of the knob body 11 can be various. The knob body 11 can be cylindrical, can be a boss-shaped or can be of other shapes, which are not limited herein. The material of the knob body 11 can be various. The knob body 11 can be made of plastic or can be made of metal, which are not limited herein.

[0052] The rotating assembly 12 is coaxially arranged with the knob body 11 and can rotate relative to the knob body 11. The rotating mode of the rotating assembly 12 relative to the knob body 11 can be various. The rotating assembly 12 can be rotatably installed on the knob body 11 or can be rotatably installed on the clothes processing apparatus, which are not limited herein. The material of the rotating assembly 12 can be various. The rotating assembly 12 can be made of metal or can be made of plastic, which are not limited herein.

[0053] The magnetic ring 13 is installed on the rotating assembly and coaxially arranged with the rotating assembly 12. The magnetic ring 13 can be a magnet or can be an injection-molded ferrite, which are not limited herein. The installation mode of the magnetic ring 13 on the rotating assembly 12 can be various. The magnetic ring 13 can be installed on the rotating assembly 12 by pasting or can be installed on the rotating assembly 12 by inserting, which are not limited herein.

[0054] The sensor 17 is mounted on the knob body and is electrically connected with the controller. When the rotating assembly 12 drives the magnetic ring 13 to rotate, the sensor 17 sends an electric signal to the controller. It can be understood that the sensor 17 can measure the rotation of the rotating assembly 12 by using the change of the magnetic field when the magnetic ring rotates, and transmit an electric signal to the controller. There are many types of sensors 17, and the sensor 17 can be a Hall sensor, an MR sensor, an AMR sensor, and a TMR sensor, which are not limited here. There are many ways for the sensor 17 to be electrically connected with the controller. The sensor 17 can be electrically connected with the controller through a wire connection, and the sensor 17 can be electrically connected with the controller through a wireless connection such as Bluetooth and WIFI, which are not limited here.

[0055] It should be noted that the magnetic ring 13 includes a plurality of N magnetic poles 131 and a plurality of S magnetic poles 132, and the N magnetic poles 131 and the S magnetic poles 132 are arranged alternately along the circumference of the magnetic ring 13. When the rotating assembly rotates, the rotating assembly drives the magnetic ring 13 to rotate, and the magnetic field near the sensor 17 of the clothes treatment equipment changes. It can be understood that when the N magnetic pole 131 rotates to the position of the adjacent N magnetic pole 131, the magnetic field of the magnetic ring 13 changes once, and at this time the sensor 17 transmits an electric signal to the controller, and the controller determines that the gear position of the knob 1 is switched once.

[0056] In the embodiment of the present application, the knob drives the magnetic ring 13 to rotate through the rotating assembly 12 to change the magnetic field around the sensor 17, so that the sensor 17 transmits an electric signal to the controller of the clothes treatment equipment, and then the clothes treatment equipment can be controlled to work. Compared with using an encoder to convert the rotation of the rotating assembly 12 into an electric signal and transmit it to the controller of the clothes treatment equipment, the cooperation of the magnetic ring 13 and the sensor 17 can reduce the setting of the circuit board, thereby reducing the cost of the knob 1 and reducing the volume of the knob 1.

[0057] Please refer to Figure 2 In some embodiments of the present application, the rotating assembly 12 is recessed towards the surface of the knob body 11 and is provided with a mounting ring groove 121, and the magnetic ring 13 is mounted in the mounting ring groove 121. In this way, by mounting the magnetic ring 13 on the mounting ring groove 121, the magnetic ring 13 can be limited in the radial direction of the rotating assembly 12.

[0058] Further, please refer to Figure 2 , Figure 5 and Figure 6The inner side wall surface of the mounting ring groove 121 is provided with a positioning protrusion 1211, and the inner side surface of the magnetic ring 13 is provided with a positioning recess 133. The positioning recess 133 is inserted and matched with the positioning protrusion 1211. In this way, the magnetic ring 13 is limited in the circumferential direction of the rotating assembly 12 through the insertion and matching of the positioning protrusion and the positioning recess 1211, and the magnetic ring 13 can be accurately installed at the specified position of the mounting ring groove 121.

[0059] Specifically, please refer to Figures 2 to 4 The magnetic ring 13 is an injection-molded ferrite. Since the injection-molded ferrite has magnetism at only one end in the axial direction of the knob 1, in order to ensure that the magnetic ring 13 has the magnetic side facing the sensor 17, an anti-fumble structure needs to be arranged. The positioning protrusion 1211 and the positioning recess 133 are both provided with two. The inner side wall surface of the mounting ring groove 121 is recessed with an anti-fumble recess 1212. The anti-fumble recess 1212 is arranged at intervals with the positioning protrusion 1211 in the circumferential direction of the rotating assembly 12. The inner side surface of the magnetic ring 13 is provided with an anti-fumble protrusion 134. The anti-fumble protrusion 134 is inserted and matched with the anti-fumble recess 1212. The anti-fumble recess 1212 and one of the positioning protrusions 1211 form an arc with a first arc α in the circumferential direction of the rotating assembly 12. The anti-fumble recess 1212 and the other positioning protrusion 1211 form an arc with a second arc β in the circumferential direction of the rotating assembly 12. The first arc α is different from the second arc β.

[0060] In this way, when the magnetic ring 13 is installed reversely, the anti-fumble protrusion 134 is aligned with the anti-fumble recess 1212, and the two positioning protrusions 1211 cannot be aligned with the two positioning recesses 133. Only when the magnetic ring 13 is installed accurately, the anti-fumble protrusion 134 is aligned with the anti-fumble recess 1212, and the two positioning protrusions 1211 can be aligned with the corresponding positioning recesses 133 respectively, so that the installation of the magnetic ring 13 is completed, thereby ensuring that the magnetic side of the magnetic ring 13 faces the sensor 17.

[0061] Please refer to Figure 5 In some embodiments of the present application, the knob 1 further comprises an abutting structure 14. The abutting structure 14 is coaxially arranged with the rotating assembly. The abutting structure 14 comprises a plurality of abutting protrusions 141. The plurality of abutting protrusions 141 are arranged at intervals in the circumferential direction of the rotating assembly 12. An abutting groove 142 is formed between adjacent two abutting protrusions 141. One of the two surfaces of the knob body 11 opposite to the rotating assembly 12 is provided with an elastic structure 15. The other of the two surfaces of the knob body 11 opposite to the rotating assembly 12 is provided with the abutting structure 14. When the rotating assembly 12 rotates relative to the knob body 11, the elastic structure 15 slides along the abutting structure 14 to alternately abut the abutting protrusions 141 and the abutting grooves 142.

[0062] In this way, when the knob 1 rotates, the elastic structure 15 is first pressed by the adjacent abutting convex portion 141, and then, after entering the abutting groove 142, the elastic structure 15 releases the elastic force and collides with the groove wall of the abutting groove 142, achieving a rotating jerk feeling, so that the user has a good hand feeling experience.

[0063] The shape of the abutting convex portion 141 can be various, which can be cylindrical, frustoconical, or other shapes, which are not specifically limited here. The elastic structure 15 can be formed in various ways, which can be made of elastic material, can be composed of a spring and an abutting block, or can be composed of a torsion spring and an abutting block, which are not specifically limited here.

[0064] Further, referring to Figure 4 , the magnetic ring 13 includes a plurality of N magnetic poles 131 and a plurality of S magnetic poles 132, the N magnetic poles 131 and the S magnetic poles 132 are arranged alternately along the circumference of the magnetic ring 13, the abutting convex portion 141 and the N magnetic pole 131 or the S magnetic pole 132 are arranged one by one in the radial direction of the rotating assembly 12, it should be noted that when the abutting convex portion 141 and the N magnetic pole 131 are arranged one by one in the radial direction of the rotating assembly 12, the abutting groove 142 and the S magnetic pole 132 are arranged one by one in the radial direction of the rotating assembly 12, and vice versa, when the abutting convex portion 141 and the S magnetic pole 132 are arranged one by one in the radial direction of the rotating assembly 12, the abutting groove 142 and the N magnetic pole 131 are arranged one by one in the radial direction of the rotating assembly 12. At this time, when the elastic structure 15 passes through the abutting convex portion 141 from the abutting groove 142 to the adjacent abutting groove 142, the knob 1 produces a jerk feeling once, the N magnetic pole 131 rotates to the position of the adjacent N magnetic pole 131, the magnetic field of the magnetic ring 13 changes once, and the sensor 17 judges that the gear of the knob 1 is switched once.

[0065] It should be noted that the abutting structure 14 can be located on the inner side of the magnetic ring 13, or on the outer side of the magnetic ring 13, which is not specifically limited here, preferably, referring to Figure 4 , the abutting structure 14 is located on the inner side of the magnetic ring 13, which can make the arc length of each magnetic pole of the magnetic ring 13 larger, so that when the elastic structure 15 passes through the abutting convex portion 141 from the abutting groove 142 to the adjacent abutting groove 142, the magnetic field of the magnetic ring 13 can have a larger change, thereby facilitating detection by the sensor 17.

[0066] In this way, the abutting convex portion 141 and the N magnetic pole 131 or the S magnetic pole 132 are arranged in one-to-one correspondence in the radial direction of the rotating assembly 12, so that the magnetic field of the magnetic ring 13 detected by the sensor 17 changes once every time the elastic structure 15 alternately abuts against the abutting convex portion 141 and the abutting groove 142, and an electrical signal is transmitted to the control, so that the controller determines that the knob 1 has changed one gear, and the gear change of the knob 1 corresponds to the rotation jerk, thereby improving the user experience.

[0067] Please refer to Figure 6 In some embodiments of the present application, the abutting convex portion 141 is provided with a guide arc surface 1411 at both ends in the circumferential direction of the rotating assembly 12, and the abutting convex portion 141 is connected to the groove bottom of the adjacent abutting groove 142 through the guide arc surface 1411. It can be understood that the abutting structure 14 is arranged in a wave shape, and in this way, when the knob 1 is rotated, the elastic structure 15 is guided by the guide arc surface 1411 to better pass through the abutting convex portion 141 into the adjacent abutting groove 142, thereby reducing the resistance of rotating the knob 1, thereby facilitating the user to use the knob 1.

[0068] Further, please refer to Figure 6 The end of the elastic structure 15 facing the abutting structure 14 is provided with an abutting arc surface 151, and the elastic structure 15 slides against the abutting structure 14 through the abutting arc surface 151. In this way, when the knob 1 is rotated, the abutting arc surface 151 cooperates with the guide arc surface 1411 so that the elastic structure 15 can better pass through the abutting convex portion 141 into the adjacent abutting groove 142, thereby reducing the resistance of rotating the knob 1, thereby facilitating the user to use the knob 1.

[0069] Preferably, the elastic structure 15 is provided with an abutting arc surface 151 at both ends in the circumferential direction of the knob 1, and in this way, no matter whether the knob 1 is rotated clockwise or counterclockwise, the abutting arc surface 151 cooperates with the guide arc surface 1411 to reduce the resistance of rotating the knob 1, thereby facilitating the user to use the knob 1. The end of the elastic structure 15 facing the abutting structure 14 can be semi-spherical, or the end of the elastic structure 15 facing the abutting structure 14 can be a semi-cylindrical, which is not specifically limited here.

[0070] Specifically, please refer to Figure 6 When the elastic structure 15 extends into the abutting groove 142, the abutting arc surface 151 abuts against and is tangent to the two adjacent guide arc surfaces 1411. In this way, when the elastic structure 15 passes through the abutting convex portion 141 and extends into the abutting groove 142, the abutting arc surface 151 can better collide with the two adjacent guide arc surfaces 1411, thereby generating a larger jerk, thereby providing the user with a better hand feel experience.

[0071] Please refer to Figure 6In some embodiments of the present application, the distance between the top of the abutting protrusion 141 and the bottom of the abutting groove 142 is h; the distance from the abutting position of the abutting arc surface 151 and the guiding arc surface 1411 to the top of the abutting protrusion 141 is a, wherein 40%≤a / h≤80%. In this way, the elastic structure 15 can better overcome the abutting protrusion 141 to reduce the resistance of rotating the knob 1, while the elastic structure 15 can collide with the guiding arc surface 1411 to produce a larger jerk when extending into the adjacent abutting groove 142, so that the user has a better hand feeling experience. Preferably, a / h is equal to 1 / 2, that is, the distance from the abutting position of the abutting arc surface 151 and the guiding arc surface 1411 to the top of the abutting protrusion 141 is equal to the distance from the abutting position of the abutting arc surface 151 and the guiding arc surface 1411 to the bottom of the abutting groove 142.

[0072] Please refer to Figure 5 In some embodiments of the present application, the elastic structure 15 comprises a top block 152 and an elastic member 153, the top block 152 can move in the direction close to or away from the abutting structure 14, and the elastic member 153 is connected with the top block 152 and makes the top block 152 have a tendency to move towards the abutting structure 14. In this way, when the knob 1 is rotated, the top block 152 will be extruded by the abutting protrusion 141 to move in the direction away from the abutting structure 14, so as to compress the spring, and when the top block 152 passes through the abutting protrusion 141 and enters the abutting groove 142, the spring will release the elastic force to push the top block 152 to move in the direction close to the abutting structure 14, and then the top block 152 will collide with the groove wall of the abutting groove 142.

[0073] Specifically, please refer to Figure 5 The surface of the top block 152 away from the abutting structure 14 is concave and provided with a receiving groove 1521, one end of the elastic member 153 extends into the receiving groove 1521, in this way, the mispositioning of the elastic member 153 and the top block 152 can be avoided to cause the elastic member 153 unable to accurately push the top block 152 to move, and the connection of the elastic member 153 and the top block 152 can be completed by only extending one end of the elastic member 153 into the receiving groove 1521, thereby improving the assembly efficiency of the knob 1.

[0074] Specifically, please refer to Figure 5 The surface of the knob body 11 and the elastic member 153 provided in the rotating assembly 12 towards the abutting structure 14 is concave and provided with a mounting groove 16, one end of the elastic member 153 extends into the mounting groove 16, the other end of the elastic member 153 abuts against the top block 152, and the end of the top block 152 away from the abutting structure 14 extends into the mounting groove 16. In this way, the movement of the abutting structure 14 can be guided through the mounting groove 16, thereby avoiding the mispositioning of the top block 152 to cause the top block 152 unable to accurately cooperate with the abutting protrusion 141 and the abutting groove 142.

[0075] Further, please refer to Figure 1 The number of the elastic structures 15 is multiple, and the multiple elastic structures 15 are arranged in a circumferential direction of the rotating assembly 12. In this way, by arranging the multiple elastic structures 15 to cooperate with the abutting structure 14, the jerk feeling of the knob 1 can be improved, so that the user has a better hand feeling experience.

[0076] The shell comprises a panel, the knob body 11 comprises a mounting seat and a display module, the mounting seat is mounted on the panel; the display module has a display part and a mounting part, the mounting part is located at the inner side of the rotating assembly 12, one end of the mounting part is connected with the display part, and the other end of the mounting part passes through the inner ring of the rotating assembly 12 and is mounted on the mounting seat. In this way, various data of the clothes processing equipment can be displayed through the display module, so as to facilitate the user to operate the clothes processing equipment, and the display module is arranged on the knob 1, so as to make full use of the space of the knob 1 in the rotating axial direction.

[0077] There are many kinds of data that can be displayed by the display module, for example, when the clothes processing equipment is a dryer, the display module can display data such as drying time and drying temperature, and for example, when the clothes processing equipment is a washing machine, the display module can display data such as washing mode and washing time, which are not listed here. There are many ways to install the mounting part on the mounting seat, the mounting part can be installed on the mounting seat by screw connection, and the mounting part can be installed on the mounting seat by buckling, which is not specifically limited here.

[0078] In the description of the present application, it should be understood that the orientation or position relationship indicated by the terms “up”, “down”, “left”, “right” and the like is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore the terms describing the position relationship in the drawings are only used for exemplary description, and cannot be understood as a limitation of the present patent, and for those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0079] In addition, the terms “first” and “second” are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as “first” and “second” can explicitly or implicitly include one or more features. In the description of the present application, the meaning of “multiple” is at least two, for example, two, three, etc., unless otherwise specifically limited.

[0080] In the description of the application, unless otherwise clearly specified and limited, the terms "mounting", "connection", "connecting", "fixing" and the like should be understood in a broad sense, for example, can be fixed connection, can also be detachable connection, or integral; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise clearly limited. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0081] It should be noted that when an element is referred to as "fixed to" or "disposed on" another element, it can be directly on the other element or there can be an intervening element. When an element is referred to as "connected to" another element, it can be directly connected to the other element or there can be an intervening element. The terms "vertical", "horizontal", "upper", "lower", "left", "right", and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation.

[0082] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto, any skilled in the art person within the technical scope disclosed by the present application can easily think of changes or replacements, which should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A knob applied to a laundry treating apparatus, characterized by, The knob comprises: a knob body; a rotating assembly coaxially arranged with the knob body and rotatable relative to the knob body; a magnetic ring mounted on the rotating assembly and coaxially arranged with the rotating assembly; and a sensor mounted on the knob body and electrically connected to a controller of the clothes treatment apparatus; wherein the rotating assembly drives the magnetic ring to rotate relative to the sensor during rotation, so that the sensor transmits an electrical signal to the controller.

2. The knob of claim 1, wherein The rotating assembly is recessed with a mounting ring groove towards a surface of the knob body, and the magnetic ring is mounted in the mounting ring groove.

3. The knob of claim 2, wherein An inner side wall surface of the mounting ring groove is convexly provided with a positioning protrusion, and an inner side surface of the magnetic ring is recessed with a positioning groove, and the positioning groove is insertedly matched with the positioning protrusion.

4. The knob of claim 3, wherein The magnetic ring is an injection-molded ferrite; The positioning protrusion is provided with two; An inner side wall surface of the mounting ring groove is recessed with a foolproof groove, and the foolproof groove is arranged in a circumferential direction of the rotating assembly and spaced apart from the positioning protrusion, an inner side surface of the magnetic ring is convexly provided with a foolproof protrusion, the foolproof protrusion is insertedly matched with the foolproof groove, and an arc formed by the foolproof groove and one of the positioning protrusions in the circumferential direction of the rotating assembly is a first arc, and an arc formed by the foolproof groove and the other of the positioning protrusions in the circumferential direction of the rotating assembly is a second arc, wherein the first arc is different from the second arc.

5. A knob as claimed in any one of claims 1 to 4, wherein The knob further comprises: an abutting structure coaxially arranged with the rotating assembly, the abutting structure comprising a plurality of abutting protrusions, the plurality of abutting protrusions being arranged in a circumferential direction of the rotating assembly and spaced apart from each other, and an abutting groove being formed between adjacent two of the abutting protrusions; wherein one of two surfaces of the knob body opposite to the rotating assembly is provided with an elastic structure, and the other of the two surfaces of the knob body opposite to the rotating assembly is provided with the abutting structure; when the rotating assembly rotates relative to the knob body, the elastic structure slides along the abutting structure to alternately abut against the abutting protrusions and the abutting groove.

6. The knob of claim 5, wherein The magnetic ring comprises a plurality of N magnetic poles and a plurality of S magnetic poles, and the N magnetic poles and the S magnetic poles are alternately arranged in a circumferential direction of the magnetic ring; the abutting protrusions and the N magnetic poles or the S magnetic poles are arranged one by one in a radial direction of the rotating assembly.

7. The knob of claim 5, wherein Both ends of the abutting protrusion in the circumferential direction of the rotating assembly are provided with guide arc surfaces, and the abutting protrusion is connected to a groove bottom of the adjacent abutting groove through the guide arc surfaces.

8. The knob of claim 7, wherein An end of the elastic structure towards the abutting structure is provided with an abutting arc surface, and the elastic structure slides and abuts against the abutting structure through the abutting arc surface.

9. The knob of claim 8, wherein When the elastic structure extends into the abutting groove, the abutting arc surface abuts against and is tangent to adjacent two of the guide arc surfaces.

10. The knob of claim 9, wherein When the elastic structure extends into the abutting groove, a distance between a top of the abutting protrusion and a groove bottom of the abutting groove is h; a distance from an abutting position of the abutting arc surface and the guide arc surface to the top of the abutting protrusion is a, and 40%≤a / h≤80%.

11. The knob of claim 5, wherein The elastic structure comprises: a top block movable in a direction close to or away from the abutting structure; and an elastic member connected to the top block and making the top block have a tendency to move towards the abutting structure.

12. The knob of claim 11, wherein a surface of the top block away from the abutting structure is concave with a receiving groove, and one end of the elastic member extends into the receiving groove; and / or a surface of the knob body facing the abutting structure is concave with a mounting groove, one end of the elastic member extends into the mounting groove, the other end of the elastic member abuts against the top block, and one end of the top block away from the abutting structure extends into the mounting groove.

13. The knob of claim 5, wherein The number of the elastic structures is multiple, and the multiple elastic structures are arranged along the circumference of the rotating assembly.

14. The knob of claim 5, wherein The abutting structure is located on the radially inner side of the magnetic ring. 15.A laundry treating apparatus, characterized by, comprise: a shell; a controller; and the knob body is mounted on the shell, and the sensor is electrically connected to the controller.

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