Knob assembly and electrical equipment

Abstract

The utility model provides a knob assembly and electrical equipment. The knob assembly comprises a magnetic induction device and a magnetic knob, the magnetic knob and the magnetic induction device are correspondingly arranged, and the magnetic induction device can obtain the rotation angle of the magnetic knob according to the magnetic field change of the magnetic knob. According to the invention, dirt hiding at the connection position of the magnetic knob and the magnetic induction device can be avoided, and maintenance and cleaning of the magnetic knob are facilitated.

Description

Technical Field

[0001] The present application relates to the technical field of household electrical appliances, and in particular to a knob assembly and an electrical appliance. Background Art

[0002] Home appliances generally use knobs to control the devices. In the related art, the control knob needs to be in direct contact with the sensor device so that the sensor device can detect the rotation angle of the knob. Therefore, there are problems such as easy to hide dirt and grime and difficult to clean. Utility Model Content

[0003] The present application aims to solve one of the technical problems existing in the prior art or related technology.

[0004] To this end, a first aspect of the present application provides a knob assembly.

[0005] A second aspect of the present application provides a knob assembly.

[0006] A third aspect of the present application provides a knob assembly.

[0007] A fourth aspect of the present application provides a knob assembly.

[0008] A fifth aspect of the present application provides an electrical device.

[0009] In view of this, according to the first aspect of the present application, a knob assembly is proposed, including: a magnetic induction device and a magnetic knob, the magnetic knob and the magnetic induction device are arranged correspondingly, wherein the magnetic induction device can obtain the rotation angle of the magnetic knob according to the magnetic field change of the magnetic knob.

[0010] In this technical solution, the knob assembly is applied to electrical equipment, the magnetic induction device and the magnetic knob are arranged relative to each other, the magnetic knob can rotate relative to the magnetic induction device, the magnetic induction device can obtain the magnetic field changes of the magnetic knob, and determine the rotation angle of the magnetic knob based on the sensed magnetic field changes.

[0011] The magnetic induction device collects the magnetic field change information of the magnetic knob and determines the rotation angle of the magnetic knob based on the magnetic field change information. It is understandable that the magnetic induction device can collect the magnetic field information generated by the magnetic knob without contacting the magnetic knob. Therefore, the magnetic induction device and the magnetic knob installed in the knob assembly of the electrical device can be arranged without contact, which solves the problem of dirt and grime easily accumulating between the connection structure of the sensor device and the control knob in the related art.

[0012] In the technical solution of the present application, the knob assembly includes a magnetic knob and a magnetic induction device that does not need to be in direct contact with the magnetic knob. The magnetic field generated by the magnetic knob when it rotates can be collected through the magnetic induction device, and the rotation angle of the magnetic knob can be determined based on the collected magnetic field information, thereby transmitting a corresponding control signal. Since the magnetic knob and the magnetic induction device do not need to be in direct contact, dirt and grime are avoided at the connection position between the magnetic knob and the magnetic induction device, and the magnetic knob can be easily maintained and cleaned.

[0013] In any of the above technical solutions, the magnetic knob includes: a body and a first magnetic member, wherein the first magnetic member is fixedly connected to the body, and the first magnetic member is correspondingly arranged to the magnetic induction device, wherein the magnetic induction device is used to obtain the rotation angle of the first magnetic member.

[0014] In this technical solution, the magnetic knob includes a body and a first magnetic member fixedly connected to the body, the first magnetic member is an induction magnetic member, and the first magnetic member is fixedly connected to the body of the knob, that is, the first magnetic member can be driven to rotate when the knob body rotates. The magnetic induction device is arranged opposite to the first magnetic member, and the magnetic induction device can obtain the rotation angle of the first magnetic member rotating with the knob body, and output a control signal according to the rotation angle.

[0015] In this technical solution, the magnetic knob includes a body and a first magnetic part. The first magnetic part serves as an induction magnetic part, so that the magnetic knob can generate a magnetic field, and the magnetic induction device can collect the magnetic field change information when the magnetic knob rotates. When the magnetic knob rotates, the first magnetic part can rotate with the body, ensuring the accuracy of the magnetic induction device in determining the rotation angle according to the magnetic field change information.

[0016] In any of the above technical solutions, the knob assembly further includes: a second magnetic member, arranged corresponding to the magnetic knob;

[0017] The magnetic knob also includes: a third magnetic component connected to the body, and the body is attracted to the second magnetic component through the magnetism of the third magnetic component.

[0018] In this technical solution, a second magnetic member is further provided in the knob assembly, and a third magnetic member is provided in the magnetic knob, and the magnetic knob can be installed in the electrical device through the second magnetic member and the third magnetic member. Since the second magnetic member and the third magnetic member can attract each other, when the second magnetic member is provided in the electrical device, the magnetic knob can be installed in the electrical device under the action of the magnetic force between the third magnetic member and the second magnetic member.

[0019] Specifically, by arranging both the magnetic induction device and the second magnetic member inside the electrical device, and arranging the magnetic knob outside the electrical device, the magnetic knob can be firmly attracted to the outer wall of the electrical device under the magnetic force of the third magnetic member and the second magnetic member in the magnetic knob. The first magnetic member in the magnetic knob is arranged opposite to the magnetic induction device, and when the magnetic knob rotates, the magnetic induction device can collect the magnetic field change of the magnetic knob, thereby collecting the rotation information of the magnetic knob.

[0020] In the technical solution of the present application, the knob assembly includes a second magnetic part, which can cooperate with the third magnetic part connected to the knob body, so that the magnetic knob is installed in a suitable installation position in the electronic device, and the magnetic knob is installed by magnetic attraction, so that the magnetic knob is connected to the electrical device in a detachable manner, which makes it easy to disassemble and wash the magnetic knob separately.

[0021] In any of the above technical solutions, the magnetic poles of the first magnetic component and the magnetic poles of the second magnetic component are staggered.

[0022] In this technical solution, the positive pole of the first magnetic component is staggered with the positive pole and negative pole of the second magnetic component, and the negative pole of the first magnetic component is staggered with the positive pole and negative pole of the second magnetic component.

[0023] In the technical solution of the present application, by staggering the magnetic poles of the first magnetic component and the magnetic poles of the second magnetic component, it is possible to avoid the magnetic fields of the second magnetic component and the third magnetic component from affecting the accuracy of the sensing element's detection of the magnetic field of the first magnetic component, thereby further ensuring the accuracy of the sensing element's detection of the rotation angle of the first magnetic component as the knob rotates.

[0024] In any of the above technical solutions, the positive pole of the second magnetic component is arranged correspondingly to the negative pole of the third magnetic component, and the negative pole of the second magnetic component is arranged correspondingly to the positive pole of the third magnetic component.

[0025] In this technical solution, the second magnetic component and the third magnetic component are attracted to each other through the principle of opposites attracting each other, so the positive pole of the second magnetic component is arranged correspondingly to the negative pole of the third magnetic component, and the negative pole of the second magnetic component is arranged correspondingly to the positive pole of the third magnetic component, ensuring that there is a high magnetic attraction force between the second magnetic component and the third magnetic component, thereby improving the stability of the fit between the knob and the panel.

[0026] It should be noted that since the second magnetic component can rotate relative to the panel, when installing the knob, the knob can be installed on one side of the third magnetic component close to the position where the second magnetic component is installed on the panel. Under the action of the attraction of opposite magnetic poles, the third magnetic component can rotate relative to the first surface of the panel and engage with the second magnetic component, thereby installing the knob on the panel.

[0027] In the technical solution of the present application, by arranging the positive pole and the negative pole of the second magnetic component to correspond to the negative pole and the positive pole of the third magnetic component respectively, the stability of the fit between the knob and the panel can be further improved.

[0028] In any of the above technical solutions, the third magnetic member is ring-shaped;

[0029] The magnetic knob also includes: a limiting ring, which is arranged on the body; a limiting post, which is arranged on the body and located in the limiting ring, and an annular groove is formed between the limiting post and the limiting ring, and the annular groove is used to accommodate the third magnetic component.

[0030] In this technical solution, the third magnetic part is an annular magnetic part, and a limiting ring and a limiting column are arranged on the main body, and the limiting column is located inside the limiting ring. An annular groove is formed on the main body of the knob through the limiting ring and the limiting column, and the groove body of the annular groove matches the shape and size of the third magnetic part. By arranging the third magnetic part in the annular groove, the stability of the connection between the third magnetic part and the main body is improved.

[0031] In the technical solution of the present application, a limiting ring and a limiting column are provided on the body of the knob, and the annular groove formed by the limiting ring and the limiting column can limit the annular third magnetic component, so that the third magnetic component can be stably installed on the knob.

[0032] In any of the above technical solutions, the second magnetic component is annular, the outer diameter of the third magnetic component matches the outer diameter of the second magnetic component, and / or the inner diameter of the third magnetic component matches the inner diameter of the second magnetic component.

[0033] In this technical solution, the second magnetic member is also an annular magnetic member. The annular magnetic member includes an inner diameter and an outer diameter, the inner diameter of the second magnetic member matches the inner diameter of the third magnetic member, and the outer diameter of the second magnetic member matches the inner diameter of the third magnetic member, so that the shapes of the second magnetic member and the third magnetic member can be matched.

[0034] In the technical solution of the present application, the second magnetic part and the third magnetic part are made to have the same shape and size by matching their shapes and sizes. That is, magnetic parts of the same specification can be reused as the second magnetic part and the third magnetic part, and the shapes and sizes of the second magnetic part and the third magnetic part are matched, which can improve the stability of the rotation of the third magnetic part driven by the second magnetic part.

[0035] According to the second aspect of the present application, a knob assembly is provided, comprising: a first panel, a magnetic induction device, and a magnetic knob. The first panel comprises a first plate surface and a second plate surface opposite to each other; the magnetic induction device is arranged on the first plate surface; the magnetic knob is arranged corresponding to the magnetic induction device, wherein the magnetic induction device and the magnetic knob are attracted to each other by magnetism, and the magnetic induction device can obtain the rotation angle of the magnetic knob according to the change of the magnetic field of the magnetic knob.

[0036] In the technical solution, the knob assembly is applied to the electrical device, and the knob assembly includes a first panel, the first panel has a first panel surface and a second panel surface facing each other, the first panel surface is the panel surface facing the inside of the electrical device, and the second panel surface is the panel surface facing the outside of the electrical device. The magnetic induction device is arranged on the first panel surface, the magnetic knob is arranged on the second panel surface, the magnetic knob is arranged opposite to the magnetic induction device, and the magnetic knob is detachably connected to the second panel surface.

[0037] The magnetic induction device collects the magnetic field change information of the magnetic knob and determines the rotation angle of the magnetic knob based on the magnetic field change information. It is understandable that the magnetic induction device can collect the magnetic field information generated by the magnetic knob without contacting the magnetic knob. Therefore, the magnetic induction device and the magnetic knob are respectively arranged on both sides of the first plate surface, and the magnetic induction device and the magnetic knob are arranged without contact, which solves the problem of dirt and grime being easily hidden between the connection structure of the sensor device and the control knob in the related art.

[0038] In the technical solution of the present application, the knob assembly includes a first panel, and a magnetic knob and a magnetic induction device arranged on both sides of the first panel. The magnetic field generated by the magnetic knob when it rotates can be collected through the magnetic induction device, and the rotation angle of the magnetic knob can be determined based on the collected magnetic field information, thereby transmitting a corresponding control signal. Since the magnetic knob and the magnetic induction device do not need to be in direct contact, dirt and grime are avoided at the connection position between the magnetic knob and the magnetic induction device, and the magnetic knob is easy to maintain and clean.

[0039] In any of the above technical solutions, the magnetic knob includes: a body and a first magnetic member, wherein the first magnetic member is fixedly connected to the body, and the first magnetic member is correspondingly arranged to the magnetic induction device, wherein the magnetic induction device is used to obtain the rotation angle of the first magnetic member.

[0040] In this technical solution, the magnetic knob includes a body and a first magnetic member fixedly connected to the body, the first magnetic member is an induction magnetic member, and the first magnetic member is fixedly connected to the body of the knob, that is, the first magnetic member can be driven to rotate when the knob body rotates. The magnetic induction device is arranged opposite to the first magnetic member, and the magnetic induction device can obtain the rotation angle of the first magnetic member rotating with the knob body, and output a control signal according to the rotation angle.

[0041] In the technical solution of the present application, the magnetic knob includes a body and a first magnetic part. The first magnetic part serves as an induction magnetic part, so that the magnetic knob can generate a magnetic field, and the magnetic induction device can collect the magnetic field change information when the magnetic knob rotates. When the magnetic knob rotates, the first magnetic part can rotate with the body, ensuring the accuracy of the magnetic induction device in determining the rotation angle according to the magnetic field change information.

[0042] In any of the above technical solutions, the knob assembly further includes: a second magnetic member, which is disposed on the first plate surface and is disposed corresponding to the magnetic knob;

[0043] The magnetic knob also includes: a third magnetic component connected to the body, and the body is attracted to the second magnetic component through the magnetism of the third magnetic component.

[0044] In this technical solution, a second magnetic component is also provided in the knob assembly, and the second magnetic component is arranged on the first plate surface. A third magnetic component is provided in the magnetic knob, and the third magnetic component is located on the second plate surface. The magnetic knob can be stably connected to the second plate surface under the action of the third magnetic component and the second magnetic component.

[0045] Specifically, by arranging both the magnetic induction device and the second magnetic member on the first plate surface facing the inside of the electrical device, and arranging the magnetic knob on the second plate surface facing the outside of the electrical device, the magnetic knob can be firmly attracted to the second plate surface under the magnetic force of the third magnetic member in the magnetic knob and the second magnetic member. The first magnetic member in the magnetic knob is arranged opposite to the magnetic induction device, and when the magnetic knob rotates, the magnetic induction device can collect the magnetic field change of the magnetic knob, thereby collecting the rotation information of the magnetic knob.

[0046] In the technical solution of the present application, the knob assembly includes a second magnetic component arranged on the first panel surface. The second magnetic component can cooperate with the third magnetic component connected to the knob body, so that the magnetic knob can be firmly connected to the second panel surface, and the magnetic knob is connected to the first panel by magnetic attraction, so that the magnetic knob and the first panel are detachable, which facilitates the magnetic knob to be disassembled and washed separately.

[0047] In any of the above technical solutions, the knob assembly also includes a fixing member disposed on the first plate surface, and the magnetic induction device is disposed on the fixing member.

[0048] In the technical solution of the present application, the magnetic induction device in the knob assembly can be stably mounted on the third plate surface through the fixing member.

[0049] According to the third aspect of the present application, a knob assembly is provided, comprising: a second panel, a magnetic induction device and a magnetic knob. The second panel comprises a third panel surface and a fourth panel surface opposite to each other, wherein the second panel is a magnetic panel; the magnetic induction device is arranged on the third panel surface; the magnetic knob is adsorbed on the fourth panel surface, and the magnetic knob is arranged corresponding to the magnetic induction device, wherein the magnetic induction device can obtain the rotation angle of the magnetic knob according to the change of the magnetic field of the magnetic knob.

[0050] In the technical solution, the knob assembly is applied to an electrical device, and the knob assembly includes a second panel, and the second panel has a third panel and a fourth panel facing each other, the third panel is a panel facing the inside of the electrical device, and the fourth panel is a panel facing the outside of the electrical device. The magnetic induction device is arranged on the third panel, and the magnetic knob is arranged on the fourth panel, and the magnetic knob and the magnetic induction device are arranged opposite to each other. The second panel is a magnetic panel, and the magnetic knob can be detachably connected to the fourth panel by magnetic attraction with the second panel.

[0051] When the magnetic knob rotates relative to the second panel, since the second panel remains relatively still, the magnetic field change information collected by the magnetic induction device is caused by the rotation of the magnetic knob, and the rotation angle of the magnetic knob is determined based on the magnetic field change information. It can be understood that the magnetic induction device can collect the magnetic field information generated by the magnetic knob without contacting the magnetic knob. Therefore, the magnetic induction device and the magnetic knob are respectively arranged on both sides of the third panel, and the magnetic induction device and the magnetic knob are arranged without contact, which solves the problem of dirt and grime being easily hidden between the connection structure of the sensor device and the control knob in the related art.

[0052] In the technical solution of the present application, the knob assembly includes a second panel, and a magnetic knob and a magnetic induction device arranged on both sides of the second panel. The magnetic induction device can collect the magnetic field generated by the magnetic knob when it rotates, and determine the rotation angle of the magnetic knob based on the collected magnetic field information, thereby transmitting a corresponding control signal. Since the magnetic knob and the magnetic induction device do not need to be in direct contact, dirt and grime are avoided at the connection position between the magnetic knob and the magnetic induction device. The magnetic knob can be adsorbed on the magnetic second panel, so that the magnetic knob can be detachably arranged on the second panel, which further facilitates the maintenance and cleaning of the magnetic knob.

[0053] In any of the above technical solutions, the magnetic knob includes: a body and a first magnetic member, wherein the first magnetic member is fixedly connected to the body, and the first magnetic member is correspondingly arranged to the magnetic induction device, wherein the magnetic induction device is used to obtain the rotation angle of the first magnetic member.

[0054] In this technical solution, the magnetic knob includes a body and a first magnetic member fixedly connected to the body, the first magnetic member is an induction magnetic member, and the first magnetic member is fixedly connected to the body of the knob, that is, the first magnetic member can be driven to rotate when the knob body rotates. The magnetic induction device is arranged opposite to the first magnetic member, and the magnetic induction device can obtain the rotation angle of the first magnetic member rotating with the knob body, and output a control signal according to the rotation angle.

[0055] In this technical solution, the magnetic knob includes a body and a first magnetic part. The first magnetic part serves as an induction magnetic part, so that the magnetic knob can generate a magnetic field, and the magnetic induction device can collect the magnetic field change information when the magnetic knob rotates. When the magnetic knob rotates, the first magnetic part can rotate with the body, ensuring the accuracy of the magnetic induction device in determining the rotation angle according to the magnetic field change information.

[0056] In any of the above technical solutions, the magnetic knob also includes:

[0057] The third magnetic component is connected to the main body, and the main body is attracted to the fourth plate surface through the magnetism of the third magnetic component.

[0058] In this technical solution, a third magnetic member is provided in the magnetic knob, and the third magnetic member is located on the fourth panel. The magnetic knob can be stably connected to the fourth panel under the magnetic effect of the third magnetic member and the second panel.

[0059] Specifically, the magnetic knob is arranged on the fourth panel facing the outside of the electrical device, and the magnetic knob can be firmly attracted to the fourth panel under the magnetic force of the third magnetic member in the magnetic knob and the second panel. The first magnetic member in the magnetic knob is arranged opposite to the magnetic induction device, and when the magnetic knob rotates, the magnetic induction device can collect the magnetic field change of the magnetic knob, thereby collecting the rotation information of the magnetic knob.

[0060] In the technical solution of the present application, the knob assembly includes a second panel with magnetism, and the second panel can cooperate with the third magnetic part connected to the body of the knob, so that the magnetic knob can be firmly connected to the fourth panel surface, and the magnetic knob and the second panel are connected by magnetic attraction, so that the magnetic knob and the second panel are detachable, which facilitates the magnetic knob to be disassembled and washed separately.

[0061] In any of the above technical solutions, the knob assembly also includes a fixing member disposed on the third plate surface, and the magnetic induction device is disposed on the fixing member.

[0062] In the technical solution of the present application, the magnetic induction device in the knob assembly can be stably mounted on the third plate surface through the fixing member.

[0063] According to the fourth technical solution of the present application, a knob assembly is proposed, including: a third panel, a magnetic induction device, a connecting member and a magnetic knob, wherein the third panel includes a fifth panel surface and a sixth panel surface opposite to each other; the magnetic induction device is arranged on the fifth panel surface; the connecting member is arranged on the sixth panel surface; the magnetic knob and the connecting member are detachably connected, the magnetic knob can be rotated relative to the connecting member, and the magnetic knob and the magnetic induction device are arranged correspondingly, wherein the magnetic induction device can obtain the rotation angle of the magnetic knob according to the change of the magnetic field of the magnetic knob.

[0064] In the technical solution, the knob assembly is applied to the electrical equipment, and the knob assembly includes a third panel, and the third panel has a fifth panel and a sixth panel facing each other, the fifth panel is a panel facing the inside of the electrical equipment, and the sixth panel is a panel facing the outside of the electrical equipment, and a connecting piece is arranged on the sixth panel, and the magnetic knob is detachably arranged on the sixth panel through the connecting piece. The magnetic induction device is arranged on the fifth panel, and the magnetic knob is arranged on the sixth panel, and the magnetic knob and the magnetic induction device are arranged opposite to each other.

[0065] When the magnetic knob rotates relative to the third panel, the magnetic induction device can collect the magnetic field change information caused by the rotation of the magnetic knob, and determine the rotation angle of the magnetic knob based on the magnetic field change information. It can be understood that the magnetic induction device can collect the magnetic field information generated by the magnetic knob without contacting the magnetic knob. Therefore, the magnetic induction device and the magnetic knob are respectively arranged on both sides of the fifth panel, and the magnetic induction device and the magnetic knob are arranged without contact, which solves the problem of dirt and grime being easily hidden between the connection structure of the sensor device and the control knob in the related art.

[0066] In the technical solution of the present application, the knob assembly includes a third panel, and a magnetic knob and a magnetic induction device arranged on both sides of the third panel. The magnetic induction device can collect the magnetic field generated by the magnetic knob when it rotates, and determine the rotation angle of the magnetic knob based on the collected magnetic field information, thereby transmitting a corresponding control signal. Since the magnetic knob and the magnetic induction device do not need to be in direct contact, dirt and grime are avoided at the connection position between the magnetic knob and the magnetic induction device, and the magnetic knob is detachably arranged on the third panel through a connecting piece, which further facilitates the maintenance and cleaning of the magnetic knob.

[0067] In any of the above technical solutions, the connecting member includes: a connecting shaft fixedly arranged on the sixth plate surface;

[0068] A magnetic knob comprises: a body, the body is provided with a socket, the body is rotatably connected to a connecting shaft through the socket; a first magnetic member is fixedly connected to the body, and the first magnetic member is correspondingly arranged with a magnetic induction device, wherein the magnetic induction device is used to obtain the rotation angle of the first magnetic member.

[0069] In this technical solution, a connecting shaft is also provided in the knob assembly, and the connecting shaft is arranged on the sixth plate surface. A socket is provided on the body of the magnetic knob, and the connecting shaft can be inserted into the socket, so that the knob assembly can rotate with the connecting shaft as the rotation axis, and the cooperation between the connecting shaft and the socket enables the knob assembly to be detachably connected to the body.

[0070] In this technical solution, the magnetic knob includes a body and a first magnetic member fixedly connected to the body, the first magnetic member is an induction magnetic member, and the first magnetic member is fixedly connected to the body of the knob, that is, the first magnetic member can be driven to rotate when the knob body rotates. The magnetic induction device is arranged opposite to the first magnetic member, and the magnetic induction device can obtain the rotation angle of the first magnetic member rotating with the knob body, and output a control signal according to the rotation angle.

[0071] In this technical solution, the magnetic knob includes a body and a first magnetic part. The first magnetic part serves as an induction magnetic part, so that the magnetic knob can generate a magnetic field and the magnetic induction device can collect the magnetic field change information when the magnetic knob rotates. When the magnetic knob rotates, the first magnetic part can rotate with the body, ensuring the accuracy of the magnetic induction device in determining the rotation angle according to the magnetic field change information. The magnetic knob can be detachably connected to the body through the cooperation of the connecting shaft and the jack, further improving the convenience of the user in daily maintenance of the magnetic knob.

[0072] In any of the above technical solutions, the knob assembly also includes a fixing member disposed on the fifth plate surface, and the magnetic induction device is disposed on the fixing member.

[0073] In the technical solution of the present application, the magnetic induction device in the knob assembly can be stably mounted on the fifth panel through the fixing member.

[0074] According to the fifth aspect of the present application, an electrical device is proposed, including: a shell, a magnetic induction device and a magnetic knob; the magnetic induction device is arranged on the inner side of the shell; the magnetic knob is arranged on the outer side of the shell, and the magnetic knob and the magnetic induction device are arranged correspondingly, wherein the magnetic induction device can obtain the rotation angle of the magnetic knob according to the change of the magnetic field of the magnetic knob.

[0075] In this technical solution, the electrical device includes a shell, a magnetic induction device is arranged inside the shell, a magnetic knob is arranged outside the shell, the magnetic knob is arranged opposite to the magnetic induction device, and the magnetic knob is detachably connected to the outside of the shell.

[0076] The magnetic induction device collects the magnetic field change information of the magnetic knob and determines the rotation angle of the magnetic knob based on the magnetic field change information. It is understandable that the magnetic induction device can collect the magnetic field information generated by the magnetic knob without contacting the magnetic knob. Therefore, the magnetic induction device and the magnetic knob are respectively arranged on both sides of the first plate surface, and the magnetic induction device and the magnetic knob are arranged without contact, which solves the problem of dirt and grime being easily hidden between the connection structure of the sensor device and the control knob in the related art.

[0077] In the technical solution of the present application, the electrical device includes a shell, and a magnetic knob and a magnetic induction device are respectively arranged on the inner and outer sides of the shell. The magnetic field generated by the magnetic knob when it rotates can be collected through the magnetic induction device, and the rotation angle of the magnetic knob can be determined according to the collected magnetic field information, thereby transmitting a corresponding control signal. Since the magnetic knob and the magnetic induction device do not need to be in direct contact, dirt and grime are avoided at the connection position between the magnetic knob and the magnetic induction device, and the magnetic knob is easy to maintain and clean.

[0078] In any of the above technical solutions, the electrical device further includes: a second magnetic member, which is arranged on the inner side wall of the housing and is arranged corresponding to the magnetic knob;

[0079] The magnetic knob comprises: a body; a third magnetic component connected to the body, and the body is attracted to the second magnetic component through the magnetism of the third magnetic component.

[0080] In this technical solution, the electrical device further includes a second magnetic member, and a third magnetic member is disposed in the magnetic knob, and the magnetic knob can be installed in the electrical device through the second magnetic member and the third magnetic member. Since the second magnetic member and the third magnetic member can attract each other, when the second magnetic member is disposed in the electrical device, the magnetic knob can be installed in the electrical device under the action of the magnetic force between the third magnetic member and the second magnetic member.

[0081] Specifically, by arranging both the magnetic induction device and the second magnetic member inside the electrical device, and arranging the magnetic knob outside the electrical device, the magnetic knob can be firmly attracted to the outer wall of the electrical device under the magnetic force of the third magnetic member and the second magnetic member in the magnetic knob. The first magnetic member in the magnetic knob is arranged opposite to the magnetic induction device, and when the magnetic knob rotates, the magnetic induction device can collect the magnetic field change of the magnetic knob, thereby collecting the rotation information of the magnetic knob.

[0082] In the technical solution of the present application, the knob assembly includes a second magnetic part, which can cooperate with the third magnetic part connected to the knob body, so that the magnetic knob is installed in a suitable installation position in the electronic device, and the magnetic knob is installed by magnetic attraction, so that the magnetic knob is connected to the electrical device in a detachable manner, which makes it easy to disassemble and wash the magnetic knob separately.

[0083] In any of the above technical solutions, the housing is provided with a mounting opening;

[0084] The electrical device also includes: a second panel, the second panel includes a third panel and a fourth panel facing each other, the third panel is located on the inner side of the shell, the fourth panel is located on the outer side of the shell, and the second panel is a magnetic panel; wherein the magnetic induction device is arranged on the third panel, and the magnetic knob is adsorbed on the fourth panel.

[0085] In the technical solution, the electrical device further includes a second panel, the second panel is mounted at the mounting opening of the housing, the second panel has a third panel surface and a fourth panel surface facing each other, the third panel surface is a panel surface facing the inside of the electrical device, and the fourth panel surface is a panel surface facing the outside of the electrical device. The magnetic induction device is arranged on the third panel surface, the magnetic knob is arranged on the fourth panel surface, and the magnetic knob is arranged opposite to the magnetic induction device. The second panel is a magnetic panel, and the magnetic knob can be detachably connected to the fourth panel surface by magnetic attraction with the second panel.

[0086] When the magnetic knob rotates relative to the second panel, since the second panel remains relatively still, the magnetic field change information collected by the magnetic induction device is caused by the rotation of the magnetic knob, and the rotation angle of the magnetic knob is determined based on the magnetic field change information. It can be understood that the magnetic induction device can collect the magnetic field information generated by the magnetic knob without contacting the magnetic knob. Therefore, the magnetic induction device and the magnetic knob are respectively arranged on both sides of the third panel, and the magnetic induction device and the magnetic knob are arranged without contact, which solves the problem of dirt and grime being easily hidden between the connection structure of the sensor device and the control knob in the related art.

[0087] In the technical solution of the present application, the knob assembly includes a second panel, and a magnetic knob and a magnetic induction device arranged on both sides of the second panel. The magnetic induction device can collect the magnetic field generated by the magnetic knob when it rotates, and determine the rotation angle of the magnetic knob based on the collected magnetic field information, thereby transmitting a corresponding control signal. Since the magnetic knob and the magnetic induction device do not need to be in direct contact, dirt and grime are avoided at the connection position between the magnetic knob and the magnetic induction device. The magnetic knob can be adsorbed on the magnetic second panel, so that the magnetic knob can be detachably arranged on the second panel, which further facilitates the maintenance and cleaning of the magnetic knob.

[0088] In any of the above technical solutions, the electrical device also includes: a connecting shaft fixedly arranged on the outer wall of the shell; a magnetic knob with a socket, and the magnetic knob is rotatably connected to the connecting shaft through the socket.

[0089] In this technical solution, the electrical device also includes a connecting shaft, which is arranged on the outer wall of the shell. A socket is arranged on the body of the magnetic knob. The connecting shaft can be inserted into the socket, so that the knob assembly can rotate with the connecting shaft as the rotation axis. The connecting shaft and the socket cooperate to enable the knob assembly to be detachably connected to the body.

[0090] In the technical solution of the present application, the magnetic knob can be detachably connected to the body through the cooperation of the connecting shaft and the socket, thereby further improving the convenience of the user in performing daily maintenance of the magnetic knob.

[0091] Additional aspects and advantages of the present application will become apparent in the following description or will be learned through practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0092] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0093] Figure 1 One of the structural schematic diagrams of the knob assembly provided in some embodiments of the present application is shown;

[0094] Figure 2 One of the structural schematic diagrams of the magnetic knob provided in some embodiments of the present application is shown;

[0095] Figure 3 A second structural schematic diagram of a knob assembly provided in some embodiments of the present application is shown;

[0096] Figure 4 A schematic diagram showing magnetic pole distribution of a first magnetic member, a second magnetic member, and a third magnetic member provided in some embodiments of the present application is shown;

[0097] Figure 5 A second structural schematic diagram of a magnetic knob provided in some embodiments of the present application is shown;

[0098] Figure 6 Shows Figure 5 Sectional view of the middle knob at A-A';

[0099] Figure 7 A third structural schematic diagram of a knob assembly provided in some embodiments of the present application is shown;

[0100] Figure 8 A fourth structural schematic diagram of a knob assembly provided in some embodiments of the present application is shown;

[0101] Fig. 9 A fifth structural schematic diagram of a knob assembly provided in some embodiments of the present application is shown;

[0102] Fig.10 A sixth structural schematic diagram of a knob assembly provided in some embodiments of the present application is shown;

[0103] Fig.11 A schematic diagram of the structure of electrical equipment provided in some embodiments of the present application is shown.

[0104] The reference numerals are as follows:

[0105] 100 knob assembly, 110 first panel, 112 first plate surface, 114 second plate surface, 120 magnetic induction device, 130 second magnetic member, 140 magnetic knob, 141 body, 142 first magnetic member, 143 third magnetic member, 144 limiting ring, 145 limiting column, 146 annular groove, 150 second panel, 152 third plate surface, 154 fourth plate surface, 160 third panel, 162 fifth plate surface, 164 sixth plate surface, 170 fixing member, 180 connecting member, 182 connecting shaft, 184 socket, 200 electrical equipment, 202 housing, 204 mounting opening. DETAILED DESCRIPTION

[0106] In order to more clearly understand the above-mentioned objectives, features and advantages of the present application, the present application is further described in detail below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, in the absence of conflict, the present embodiment and the features in the embodiment can be combined with each other.

[0107] In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present application is not limited to the specific embodiments disclosed below.

[0108] Refer to the following Figures 1 to 11 A knob assembly and an electrical device according to some embodiments of the present application are described.

[0109] According to one embodiment of the present application, Figure 1 One of the structural schematic diagrams of the knob assembly provided in some embodiments of the present application is shown, such as Figure 1 As shown, a knob assembly 100 is proposed, including: a magnetic induction device 120 and a magnetic knob 140, wherein the magnetic knob 140 is arranged corresponding to the magnetic induction device 120, wherein the magnetic induction device 120 can obtain the rotation angle of the magnetic knob 140 according to the magnetic field change of the magnetic knob 140.

[0110] In this embodiment, the knob assembly 100 is applied to electrical equipment, the magnetic sensing device 120 and the magnetic knob 140 are arranged opposite to each other, the magnetic knob 140 can rotate relative to the magnetic sensing device 120, the magnetic sensing device 120 can obtain the magnetic field change of the magnetic knob 140, and determine the rotation angle of the magnetic knob 140 according to the sensed magnetic field change.

[0111] The magnetic induction device 120 collects the magnetic field change information of the magnetic knob 140, and determines the rotation angle of the magnetic knob 140 based on the magnetic field change information. It is understandable that the magnetic induction device 120 can collect the magnetic field information generated by the magnetic knob 140 without contacting the magnetic knob 140. Therefore, the magnetic induction device 120 and the magnetic knob 140 installed in the knob assembly 100 of the electrical device can be arranged without contact, which solves the problem of dirt and grime easily lurking between the connection structure of the sensor device and the control knob in the related art.

[0112] Exemplarily, the knob assembly 100 is arranged on the electric stew pot, the magnetic induction device 120 is arranged in the pot body of the electric stew pot, and the magnetic induction device 120 is connected to the controller of the electric stew pot, and the magnetic knob 140 is arranged outside the pot body of the electric stew pot, and the magnetic knob 140 is arranged opposite to the sampling end of the magnetic induction device 120. When the user rotates the magnetic knob 140 on the outside of the pot body, the magnetic induction device 120 on the inside of the pot body can collect the magnetic field change information of the magnetic knob 140, and transmit the magnetic field change information to the controller to determine the rotation angle of the magnetic knob 140 operated by the user.

[0113] In the embodiment of the present application, the knob assembly 100 includes a magnetic knob 140 and a magnetic sensing device 120 that does not need to be in direct contact with the magnetic knob 140. The magnetic sensing device 120 can collect the magnetic field generated by the magnetic knob 140 when it rotates, and determine the rotation angle of the magnetic knob 140 based on the collected magnetic field information, thereby transmitting a corresponding control signal. Since the magnetic knob 140 and the magnetic sensing device 120 do not need to be in direct contact, dirt and grime are avoided at the connection position between the magnetic knob 140 and the magnetic sensing device 120, and the magnetic knob 140 is easy to maintain and clean.

[0114] Figure 2 One of the structural schematic diagrams of the magnetic knob provided in some embodiments of the present application is shown, such as Figure 2 As shown, in any of the above embodiments, the magnetic knob 140 includes: a body 141 and a first magnetic member 142. The first magnetic member 142 is fixedly connected to the body 141, and the first magnetic member 142 is correspondingly arranged with the magnetic induction device 120, wherein the magnetic induction device 120 is used to obtain the rotation angle of the first magnetic member 142.

[0115] In this embodiment, the magnetic knob 140 includes a body 141 and a first magnetic member 142 fixedly connected to the body 141. The first magnetic member 142 is an induction magnetic member, and the first magnetic member 142 is fixedly connected to the body 141 of the knob, that is, the first magnetic member 142 can be driven to rotate when the knob body 141 rotates. The magnetic induction device 120 is arranged opposite to the first magnetic member 142, and the magnetic induction device 120 can obtain the rotation angle of the first magnetic member 142 rotating with the knob body 141, and output a control signal according to the rotation angle.

[0116] Exemplarily, the body 141 may be selected to be a metal having ferromagnetism, for example, an iron knob body 141 .

[0117] Exemplarily, the body 141 may also be made of a magnetic material. For example, the knob is a magnetic knob 140 . The body 141 is attracted to the first magnetic member 142 by the principle of opposites attracting each other.

[0118] In this embodiment, the magnetic knob 140 includes a body 141 and a first magnetic member 142. The first magnetic member 142 is used as an induction magnetic member, so that the magnetic knob 140 can generate a magnetic field, and the magnetic induction device 120 can collect the magnetic field change information when the magnetic knob 140 rotates. When the magnetic knob 140 rotates, the first magnetic member 142 can rotate together with the body 141, ensuring the accuracy of the magnetic induction device 120 determining the rotation angle according to the magnetic field change information.

[0119] Figure 3 FIG. 2 shows a second structural schematic diagram of a knob assembly provided in some embodiments of the present application, such as Figure 3 As shown, in any of the above embodiments, the knob assembly 100 further includes: a second magnetic member 130, which is arranged corresponding to the magnetic knob 140;

[0120] The magnetic knob 140 further includes: a third magnetic component 143 connected to the body 141 . The body 141 is attracted to the second magnetic component 130 by the magnetism of the third magnetic component 143 .

[0121] In this embodiment, the knob assembly 100 is further provided with a second magnetic member 130, and the magnetic knob 140 is provided with a third magnetic member 143, and the magnetic knob 140 can be installed in the electrical device through the second magnetic member 130 and the third magnetic member 143. Since the second magnetic member 130 and the third magnetic member 143 can attract each other, when the second magnetic member 130 is set in the electrical device, the magnetic knob 140 can be installed in the electrical device under the action of the magnetic force between the third magnetic member 143 and the second magnetic member 130.

[0122] Specifically, by arranging the magnetic induction device 120 and the second magnetic member 130 inside the electrical device, and arranging the magnetic knob 140 outside the electrical device, the magnetic knob 140 can be firmly attracted to the outer wall of the electrical device under the magnetic force of the third magnetic member 143 in the magnetic knob 140 and the second magnetic member 130. The first magnetic member 142 in the magnetic knob 140 is arranged opposite to the magnetic induction device 120. When the magnetic knob 140 rotates, the magnetic induction device 120 can collect the magnetic field changes of the magnetic knob 140, thereby collecting the rotation information of the magnetic knob 140.

[0123] Exemplarily, the third magnetic member 143 can be rotatably connected to the body 141 of the knob, that is, the body 141 can rotate relative to the third magnetic member 143. When the third magnetic member 143 and the second magnetic member 130 are fastened and attracted by magnetic force, the body 141 can drive the first magnet as the induction magnet to rotate, so that the magnetic induction device 120 can collect the magnetic field changes of the first magnetic member 142, while also avoiding the displacement of the magnetic knob 140 caused by the rotation of the third magnetic member 143 relative to the second magnetic member 130, thereby improving the accuracy of determining the rotation angle of the magnetic knob 140 based on the collected magnetic field information.

[0124] In the embodiment of the present application, the knob assembly 100 includes a second magnetic component 130, and the second magnetic component 130 can cooperate with the third magnetic component 143 connected to the knob body 141 to install the magnetic knob 140 in a suitable installation position in the electronic device, and the magnetic knob 140 is installed by magnetic attraction, so that the magnetic knob 140 is connected to the electrical device in a detachable manner, which facilitates the magnetic knob 140 to be disassembled and cleaned separately.

[0125] In any of the above embodiments, the magnetic poles of the first magnetic member 142 and the magnetic poles of the second magnetic member 130 are staggered.

[0126] In this embodiment, the positive pole of the first magnetic member 142 is staggered with the positive pole and the negative pole of the second magnetic member 130 , and the negative pole of the first magnetic member 142 is staggered with the positive pole and the negative pole of the second magnetic member 130 .

[0127] Figure 4 Schematic diagrams showing magnetic pole distribution of the first magnetic member, the second magnetic member and the third magnetic member provided in some embodiments of the present application are shown. Figure 4 As shown, exemplarily, the positive pole to the negative pole of the first magnetic member 142 extends along the first direction a, and the positive pole to the negative pole of the second magnetic member 130 extends along the second direction b. An angle is set between the first direction a and the second direction b, and the angle ranges from 75° to 105°.

[0128] In the embodiment of the present application, by staggering the magnetic poles of the first magnetic component 142 with respect to the magnetic poles of the second magnetic component 130, it is possible to avoid the magnetic fields of the second magnetic component 130 and the third magnetic component 143 from affecting the accuracy of the sensing element's detection of the magnetic field of the first magnetic component 142, thereby further ensuring the accuracy of the sensing element's detection of the rotation angle of the first magnetic component 142 as the knob rotates.

[0129] In any of the above embodiments, the positive pole of the second magnetic member 130 is disposed correspondingly to the negative pole of the third magnetic member 143 , and the negative pole of the second magnetic member 130 is disposed correspondingly to the positive pole of the third magnetic member 143 .

[0130] In this embodiment, the second magnetic member 130 and the third magnetic member 143 are attracted to each other through the principle of opposite charges attracting each other, so the positive pole of the second magnetic member 130 is arranged corresponding to the negative pole of the third magnetic member 143, and the negative pole of the second magnetic member 130 is arranged corresponding to the positive pole of the third magnetic member 143, thereby ensuring that there is a high magnetic attraction force between the second magnetic member 130 and the third magnetic member 143, thereby improving the stability of the fit between the knob and the panel.

[0131] like Figure 4 As shown, exemplarily, the positive pole to the negative pole of the third magnetic component 143 extends along the second direction b, and the positive pole to the negative pole of the second magnetic component 130 extends along the third direction c, and the second direction b and the third direction c are in opposite directions, ensuring that the positive pole of the second magnetic component 130 can be attracted to the negative pole of the third magnetic component 143, and the negative pole of the second magnetic component 130 can be attracted to the positive pole of the third magnetic component 143.

[0132] It should be noted that since the second magnetic component 130 can rotate relative to the panel, when installing the knob, the knob can be installed by placing one side of the third magnetic component 143 close to the position where the second magnetic component 130 is installed on the panel. Under the effect of the attraction of opposite magnetic poles, the third magnetic component 143 can rotate relative to the first plate surface 112 of the panel and engage with the second magnetic component 130, thereby installing the knob on the panel.

[0133] In the embodiment of the present application, by arranging the positive pole and the negative pole of the second magnetic member 130 to correspond to the negative pole and the positive pole of the third magnetic member 143 respectively, the stability of the fit between the knob and the panel can be further improved.

[0134] Figure 2 The second structural schematic diagram of the magnetic knob provided in some embodiments of the present application is shown. Figure 6 Shows Figure 5 The cross-section of the middle knob at A-A' is as follows: Figure 5 and Figure 6 As shown, in any of the above embodiments, the third magnetic member 143 is ring-shaped;

[0135] The magnetic knob 140 further includes: a limiting ring 144 disposed on the body 141 ; a limiting post 145 disposed on the body 141 and located inside the limiting ring 144 , and an annular groove 146 is formed between the limiting post 145 and the limiting ring 144 , and the annular groove 146 is used to accommodate the third magnetic member 143 .

[0136] In this technical solution, the third magnetic component 143 is an annular magnetic component, and a limiting ring 144 and a limiting column 145 are provided on the main body 141, and the limiting column 145 is located inside the limiting ring 144. An annular groove 146 is formed on the main body 141 of the knob through the limiting ring 144 and the limiting column 145. The groove body of the annular groove 146 matches the shape and size of the third magnetic component 143. By arranging the third magnetic component 143 in the annular groove 146, the stability of the connection between the third magnetic component 143 and the main body 141 is improved.

[0137] Exemplarily, the limiting ring 144 and the limiting column 145 are both integrally formed with the body 141 , wherein the body 141 , the limiting ring 144 and the limiting column 145 are all made of non-magnetic materials.

[0138] In the technical solution of the present application, a limiting ring 144 and a limiting column 145 are provided on the body 141 of the knob, and the annular groove 146 formed by the limiting ring 144 and the limiting column 145 can limit the annular third magnetic component 143, so that the third magnetic component 143 can be stably installed on the knob.

[0139] In any of the above embodiments, the second magnetic member 130 is annular, the outer diameter of the third magnetic member 143 matches the outer diameter of the second magnetic member 130 , and / or the inner diameter of the third magnetic member 143 matches the inner diameter of the second magnetic member 130 .

[0140] In this technical solution, the second magnetic member 130 is also an annular magnetic member. The annular magnetic member includes an inner diameter and an outer diameter, the inner diameter of the second magnetic member 130 matches the inner diameter of the third magnetic member 143, and the outer diameter of the second magnetic member 130 matches the inner diameter of the third magnetic member 143, which can ensure that the shapes of the second magnetic member 130 and the third magnetic member 143 match.

[0141] In the technical solution of the present application, the second magnetic part 130 and the third magnetic part 143 are matched in shape and size so that the second magnetic part 130 and the third magnetic part 143 are magnetic parts of the same shape and size, that is, magnetic parts of the same specification can be reused as the second magnetic part 130 and the third magnetic part 143, and the shapes and sizes of the second magnetic part 130 and the third magnetic part 143 are matched, which can improve the stability of the second magnetic part 130 driving the third magnetic part 143 to rotate.

[0142] According to one embodiment of the present application, Figure 7The third structural schematic diagram of the knob assembly provided in some embodiments of the present application is shown. Figure 8 FIG. 4 shows a fourth structural diagram of a knob assembly provided in some embodiments of the present application. Figure 7 As shown, a knob assembly 100 is proposed, comprising: a first panel 110, a magnetic induction device 120, and a magnetic knob 140. The first panel 110 comprises a first panel surface 112 and a second panel surface 114 opposite to each other; the magnetic induction device 120 is arranged on the first panel surface 112; the magnetic knob 140 is arranged corresponding to the magnetic induction device 120, wherein the magnetic induction device 120 and the magnetic knob 140 are attracted to each other by magnetism, and the magnetic induction device 120 can obtain the rotation angle of the magnetic knob 140 according to the change of the magnetic field of the magnetic knob 140.

[0143] In this embodiment, the knob assembly 100 is applied to an electrical device, and the knob assembly 100 includes a first panel 110, and the first panel 110 has a first panel surface 112 and a second panel surface 114 opposite to each other, the first panel surface 112 is a panel surface facing the inside of the electrical device, and the second panel surface 114 is a panel surface facing the outside of the electrical device. The magnetic induction device 120 is arranged on the first panel surface 112, and the magnetic knob 140 is arranged on the second panel surface 114. The magnetic knob 140 is arranged opposite to the magnetic induction device 120, and the magnetic knob 140 is detachably connected to the second panel surface 114.

[0144] The magnetic sensing device 120 collects the magnetic field change information of the magnetic knob 140, and determines the rotation angle of the magnetic knob 140 based on the magnetic field change information. It is understandable that the magnetic sensing device 120 can collect the magnetic field information generated by the magnetic knob 140 without contacting the magnetic knob 140. Therefore, the magnetic sensing device 120 and the magnetic knob 140 are respectively arranged on both sides of the first plate surface 112, and there is no contact between the magnetic sensing device 120 and the magnetic knob 140, which solves the problem of dirt easily accumulating between the connection structure of the sensor device and the control knob in the related art.

[0145] Exemplarily, the knob assembly 100 is arranged on a microwave oven, the first panel 110 is a control panel of the microwave oven, the first panel surface 112 faces the inside of the microwave oven, the second panel surface 114 faces the outside of the microwave oven, the magnetic induction device 120 is arranged in the microwave oven, and the magnetic induction device 120 is connected to the controller of the microwave oven, and the magnetic knob 140 is arranged outside the microwave oven. When the user rotates the magnetic knob 140 at the second panel surface 114, the magnetic induction device 120 at the first panel surface 112 can collect the magnetic field change information of the magnetic knob 140, and transmit the magnetic field change information to the controller to determine the rotation angle of the magnetic knob 140 operated by the user.

[0146] In the embodiment of the present application, the knob assembly 100 includes a first panel 110, and a magnetic knob 140 and a magnetic sensing device 120 arranged on both sides of the first panel 110. The magnetic sensing device 120 can collect the magnetic field generated by the magnetic knob 140 when it rotates, and determine the rotation angle of the magnetic knob 140 based on the collected magnetic field information, thereby transmitting a corresponding control signal. Since the magnetic knob 140 and the magnetic sensing device 120 do not need to be in direct contact, dirt and grime are avoided at the connection position between the magnetic knob 140 and the magnetic sensing device 120, and the magnetic knob 140 is easy to maintain and clean.

[0147] like Figure 3 As shown, in any of the above embodiments, the magnetic knob 140 includes: a body 141 and a first magnetic member 142. The first magnetic member 142 is fixedly connected to the body 141, and the first magnetic member 142 is correspondingly arranged with the magnetic induction device 120, wherein the magnetic induction device 120 is used to obtain the rotation angle of the first magnetic member 142.

[0148] In this embodiment, the magnetic knob 140 includes a body 141 and a first magnetic member 142 fixedly connected to the body 141. The first magnetic member 142 is an induction magnetic member, and the first magnetic member 142 is fixedly connected to the body 141 of the knob, that is, the first magnetic member 142 can be driven to rotate when the knob body 141 rotates. The magnetic induction device 120 is arranged opposite to the first magnetic member 142, and the magnetic induction device 120 can obtain the rotation angle of the first magnetic member 142 rotating with the knob body 141, and output a control signal according to the rotation angle.

[0149] Exemplarily, the body 141 may be selected to be a metal having ferromagnetism, for example, an iron knob body 141 .

[0150] Exemplarily, the body 141 may also be made of a magnetic material. For example, the knob is a magnetic knob 140 . The body 141 is attracted to the first magnetic member 142 by the principle of opposites attracting each other.

[0151] In the embodiment of the present application, the magnetic knob 140 includes a body 141 and a first magnetic member 142. The first magnetic member 142 is used as an induction magnetic member, so that the magnetic knob 140 can generate a magnetic field, and the magnetic induction device 120 can collect the magnetic field change information when the magnetic knob 140 rotates. When the magnetic knob 140 rotates, the first magnetic member 142 can rotate together with the body 141, ensuring the accuracy of the magnetic induction device 120 determining the rotation angle according to the magnetic field change information.

[0152] like Figure 8 As shown, in any of the above embodiments, the knob assembly 100 further includes: a second magnetic member 130, which is disposed on the first plate surface 112 and is disposed corresponding to the magnetic knob 140;

[0153] The magnetic knob 140 further includes: a third magnetic component 143 connected to the body 141 . The body 141 is attracted to the second magnetic component 130 by the magnetism of the third magnetic component 143 .

[0154] In this embodiment, a second magnetic component 130 is further provided in the knob assembly 100, and the second magnetic component 130 is arranged on the first plate surface 112, and a third magnetic component 143 is provided in the magnetic knob 140, and the third magnetic component 143 is located on the second plate surface 114. Under the action of the third magnetic component 143 and the second magnetic component 130, the magnetic knob 140 can be stably connected to the second plate surface 114.

[0155] Specifically, by arranging both the magnetic induction device 120 and the second magnetic member 130 on the first plate surface 112 facing the inside of the electrical device, and arranging the magnetic knob 140 on the second plate surface 114 facing the outside of the electrical device, under the magnetic force of the third magnetic member 143 in the magnetic knob 140 and the second magnetic member 130, the magnetic knob 140 can be firmly attracted to the second plate surface 114. The first magnetic member 142 in the magnetic knob 140 is arranged opposite to the magnetic induction device 120, and when the magnetic knob 140 rotates, the magnetic induction device 120 can collect the magnetic field change of the magnetic knob 140, thereby collecting the rotation information of the magnetic knob 140.

[0156] Exemplarily, the third magnetic member 143 can be rotatably connected to the body 141 of the knob, that is, the body 141 can rotate relative to the third magnetic member 143. When the third magnetic member 143 and the second magnetic member 130 are fastened and attracted by magnetic force, the body 141 can drive the first magnet as the induction magnet to rotate, so that the magnetic induction device 120 can collect the magnetic field changes of the first magnetic member 142, while also avoiding the displacement of the magnetic knob 140 caused by the rotation of the third magnetic member 143 relative to the second magnetic member 130, thereby improving the accuracy of determining the rotation angle of the magnetic knob 140 based on the collected magnetic field information.

[0157] In the embodiment of the present application, the knob assembly 100 includes a second magnetic component 130 arranged on the first panel surface 112. The second magnetic component 130 can cooperate with the third magnetic component 143 connected to the knob body 141, so that the magnetic knob 140 can be firmly connected to the second panel surface 114, and the magnetic knob 140 is connected to the first panel 110 by magnetic attraction, so that the magnetic knob 140 and the first panel 110 are detachable, which facilitates the magnetic knob 140 to be disassembled and washed separately.

[0158] like Figure 8As shown, in any of the above embodiments, the knob assembly 100 further includes a fixing member 170 disposed on the first plate surface 112 , and the magnetic induction device 120 is disposed on the fixing member 170 .

[0159] In the embodiment of the present application, the magnetic induction device 120 in the knob assembly 100 can be stably mounted on the third plate surface 152 through the fixing member 170 .

[0160] According to one embodiment of the present application, Fig. 9 FIG. 5 shows a fifth structural diagram of a knob assembly provided in some embodiments of the present application, such as Fig. 9 As shown, a knob assembly 100 is proposed, comprising: a second panel 150, a magnetic induction device 120 and a magnetic knob 140. The second panel 150 comprises a third panel surface 152 and a fourth panel surface 154 which are opposite to each other, wherein the second panel 150 is a magnetic panel; the magnetic induction device 120 is arranged on the third panel surface 152; the magnetic knob 140 is adsorbed on the fourth panel surface 154, and the magnetic knob 140 is arranged corresponding to the magnetic induction device 120, wherein the magnetic induction device 120 can obtain the rotation angle of the magnetic knob 140 according to the change of the magnetic field of the magnetic knob 140.

[0161] In this embodiment, the knob assembly 100 is applied to an electrical device, and the knob assembly 100 includes a second panel 150, and the second panel 150 has a third panel surface 152 and a fourth panel surface 154 opposite to each other, the third panel surface 152 is a panel surface facing the inside of the electrical device, and the fourth panel surface 154 is a panel surface facing the outside of the electrical device. The magnetic induction device 120 is arranged on the third panel surface 152, and the magnetic knob 140 is arranged on the fourth panel surface 154, and the magnetic knob 140 is arranged opposite to the magnetic induction device 120. The second panel 150 is a magnetic panel, and the magnetic knob 140 can be detachably connected to the fourth panel surface 154 by magnetic attraction with the second panel 150.

[0162] When the magnetic knob 140 rotates relative to the second panel 150, since the second panel 150 remains relatively still, the magnetic field change information collected by the magnetic induction device 120 is caused by the rotation of the magnetic knob 140, and the rotation angle of the magnetic knob 140 is determined based on the magnetic field change information. It can be understood that the magnetic induction device 120 can collect the magnetic field information generated by the magnetic knob 140 without contacting the magnetic knob 140. Therefore, the magnetic induction device 120 and the magnetic knob 140 are respectively arranged on both sides of the third plate surface 152, and there is no contact between the magnetic induction device 120 and the magnetic knob 140, which solves the problem of dirt easily accumulating between the connection structure of the sensor device and the control knob in the related art.

[0163] Exemplarily, the knob assembly 100 is arranged on the microwave oven, the second panel 150 is the control panel of the microwave oven, the third panel 152 faces the inside of the microwave oven, the fourth panel 154 faces the outside of the microwave oven, the magnetic induction device 120 is arranged in the microwave oven, and the magnetic induction device 120 is connected to the controller of the microwave oven, and the magnetic knob 140 is arranged outside the microwave oven. When the user rotates the magnetic knob 140 at the fourth panel 154, the magnetic induction device 120 at the third panel 152 can collect the magnetic field change information of the magnetic knob 140, and transmit the magnetic field change information to the controller to determine the rotation angle of the magnetic knob 140 operated by the user.

[0164] In the embodiment of the present application, the knob assembly 100 includes a second panel 150, and a magnetic knob 140 and a magnetic sensing device 120 arranged on both sides of the second panel 150. The magnetic sensing device 120 can collect the magnetic field generated by the magnetic knob 140 when it rotates, and determine the rotation angle of the magnetic knob 140 based on the collected magnetic field information, thereby transmitting a corresponding control signal. Since the magnetic knob 140 and the magnetic sensing device 120 do not need to be in direct contact, dirt and grime are avoided at the connection position between the magnetic knob 140 and the magnetic sensing device 120, and the magnetic knob 140 can be adsorbed on the magnetic second panel 150, so that the magnetic knob 140 can be detachably arranged on the second panel 150, which further facilitates the maintenance and cleaning of the magnetic knob 140.

[0165] like Figure 3 As shown, in any of the above embodiments, the magnetic knob 140 includes: a body 141 and a first magnetic member 142. The first magnetic member 142 is fixedly connected to the body 141, and the first magnetic member 142 is correspondingly arranged with the magnetic induction device 120, wherein the magnetic induction device 120 is used to obtain the rotation angle of the first magnetic member 142.

[0166] In this embodiment, the magnetic knob 140 includes a body 141 and a first magnetic member 142 fixedly connected to the body 141. The first magnetic member 142 is an induction magnetic member, and the first magnetic member 142 is fixedly connected to the body 141 of the knob, that is, the first magnetic member 142 can be driven to rotate when the knob body 141 rotates. The magnetic induction device 120 is arranged opposite to the first magnetic member 142, and the magnetic induction device 120 can obtain the rotation angle of the first magnetic member 142 rotating with the knob body 141, and output a control signal according to the rotation angle.

[0167] Exemplarily, the body 141 may be selected to be a metal having ferromagnetism, for example, an iron knob body 141 .

[0168] Exemplarily, the body 141 may also be made of a magnetic material. For example, the knob is a magnetic knob 140 . The body 141 is attracted to the first magnetic member 142 by the principle of opposites attracting each other.

[0169] In this embodiment, the magnetic knob 140 includes a body 141 and a first magnetic member 142. The first magnetic member 142 is used as an induction magnetic member, so that the magnetic knob 140 can generate a magnetic field, and the magnetic induction device 120 can collect the magnetic field change information when the magnetic knob 140 rotates. When the magnetic knob 140 rotates, the first magnetic member 142 can rotate together with the body 141, ensuring the accuracy of the magnetic induction device 120 determining the rotation angle according to the magnetic field change information.

[0170] like Fig. 9 As shown, in any of the above embodiments, the magnetic knob 140 further includes:

[0171] The third magnetic member 143 is connected to the body 141 , and the body 141 is attracted to the fourth plate surface 154 by the magnetism of the third magnetic member 143 .

[0172] In this embodiment, a third magnetic member 143 is provided in the magnetic knob 140 , and the third magnetic member 143 is located on the fourth panel 154 . The magnetic knob 140 can be stably connected to the fourth panel 154 under the magnetic effect of the third magnetic member 143 and the second panel 150 .

[0173] Specifically, the magnetic knob 140 is disposed on the fourth panel 154 facing the outside of the electrical device, and under the magnetic force of the third magnetic member 143 in the magnetic knob 140 and the second panel 150, the magnetic knob 140 can be firmly attracted to the fourth panel 154. The first magnetic member 142 in the magnetic knob 140 is disposed opposite to the magnetic induction device 120, and when the magnetic knob 140 rotates, the magnetic induction device 120 can collect the magnetic field change of the magnetic knob 140, thereby collecting the rotation information of the magnetic knob 140.

[0174] Exemplarily, the third magnetic member 143 can be rotatably connected to the body 141 of the knob, that is, the body 141 can rotate relative to the third magnetic member 143. When the third magnetic member 143 and the second panel 150 are fastened and attracted by magnetic force, the body 141 can drive the first magnet as the induction magnet to rotate, so that the magnetic induction device 120 can collect the magnetic field changes of the first magnetic member 142, while also avoiding the displacement of the magnetic knob 140 caused by the rotation of the third magnetic member 143 relative to the second panel 150, thereby improving the accuracy of determining the rotation angle of the magnetic knob 140 based on the collected magnetic field information.

[0175] In the embodiment of the present application, the knob assembly 100 includes a second panel 150 having magnetism. The second panel 150 can cooperate with the third magnetic component 143 connected to the knob body 141, so that the magnetic knob 140 can be firmly connected to the fourth panel surface 154, and the magnetic knob 140 and the second panel 150 are connected by magnetic attraction, so that the magnetic knob 140 and the second panel 150 are detachable, so that the magnetic knob 140 can be disassembled and washed separately.

[0176] like Fig. 9 As shown, in any of the above embodiments, the knob assembly 100 further includes a fixing member 170 disposed on the third plate surface 152 , and the magnetic induction device 120 is disposed on the fixing member 170 .

[0177] In the embodiment of the present application, the magnetic induction device 120 in the knob assembly 100 can be stably mounted on the third plate surface 152 through the fixing member 170 .

[0178] According to one embodiment of the present application, Fig.10 FIG. 6 shows a sixth structural diagram of a knob assembly provided in some embodiments of the present application. Fig.10 As shown, a knob assembly 100 is proposed, including: a third panel 160, a magnetic induction device 120, a connecting member 180 and a magnetic knob 140, wherein the third panel 160 includes a fifth panel surface 162 and a sixth panel surface 164 opposite to each other; the magnetic induction device 120 is arranged on the fifth panel surface 162; the connecting member 180 is arranged on the sixth panel surface 164; the magnetic knob 140 and the connecting member 180 are detachably connected, the magnetic knob 140 can rotate relative to the connecting member 180, and the magnetic knob 140 and the magnetic induction device 120 are arranged correspondingly, wherein the magnetic induction device 120 can obtain the rotation angle of the magnetic knob 140 according to the change of the magnetic field of the magnetic knob 140.

[0179] In this embodiment, the knob assembly 100 is applied to an electrical device, and the knob assembly 100 includes a third panel 160, and the third panel 160 has a fifth panel 162 and a sixth panel 164 facing each other, the fifth panel 162 is a panel facing the inside of the electrical device, and the sixth panel 164 is a panel facing the outside of the electrical device, and a connector 180 is provided on the sixth panel 164, and the magnetic knob 140 is detachably provided on the sixth panel 164 through the connector 180. The magnetic induction device 120 is provided on the fifth panel 162, and the magnetic knob 140 is provided on the sixth panel 164, and the magnetic knob 140 is provided opposite to the magnetic induction device 120.

[0180] Exemplarily, the connecting member 180 may be a snap-fit ​​connecting member 180 , that is, the magnetic knob 140 is detachably connected to the third panel 160 by snap-fitting.

[0181] Exemplarily, the connection member 180 may be a rotating connection member 180 , that is, the magnetic knob 140 is detachably connected to the third panel 160 by a rotating connection.

[0182] When the magnetic knob 140 rotates relative to the third panel 160, the magnetic induction device 120 can collect the magnetic field change information caused by the rotation of the magnetic knob 140, and determine the rotation angle of the magnetic knob 140 based on the magnetic field change information. It can be understood that the magnetic induction device 120 can collect the magnetic field information generated by the magnetic knob 140 without contacting the magnetic knob 140. Therefore, the magnetic induction device 120 and the magnetic knob 140 are respectively arranged on both sides of the fifth panel 162, and the magnetic induction device 120 and the magnetic knob 140 are non-contacted, which solves the problem of dirt and grime easily lurking between the connection structure of the sensor device and the control knob in the related art.

[0183] Exemplarily, the knob assembly 100 is arranged on the microwave oven, the third panel 160 is the control panel of the microwave oven, the fifth panel 162 faces the inside of the microwave oven, the sixth panel 164 faces the outside of the microwave oven, the magnetic induction device 120 is arranged in the microwave oven, and the magnetic induction device 120 is connected to the controller of the microwave oven, and the magnetic knob 140 is arranged outside the microwave oven. When the user rotates the magnetic knob 140 at the sixth panel 164, the magnetic induction device 120 at the fifth panel 162 can collect the magnetic field change information of the magnetic knob 140, and transmit the magnetic field change information to the controller to determine the rotation angle of the magnetic knob 140 operated by the user.

[0184] In the embodiment of the present application, the knob assembly 100 includes a third panel 160, and a magnetic knob 140 and a magnetic sensing device 120 arranged on both sides of the third panel 160. The magnetic sensing device 120 can collect the magnetic field generated by the magnetic knob 140 when it rotates, and determine the rotation angle of the magnetic knob 140 based on the collected magnetic field information, thereby transmitting a corresponding control signal. Since the magnetic knob 140 and the magnetic sensing device 120 do not need to be in direct contact, dirt and grime are avoided at the connection position between the magnetic knob 140 and the magnetic sensing device 120, and the magnetic knob 140 is detachably arranged on the third panel 160 through the connecting member 180, which further facilitates the maintenance and cleaning of the magnetic knob 140.

[0185] In any of the above embodiments, the connecting member 180 includes: a connecting shaft 182 fixedly disposed on the sixth plate surface 164;

[0186] The magnetic knob 140 includes: a main body 141, which is provided with a socket 184, and the main body 141 is rotatably connected to the connecting shaft 182 through the socket 184; a first magnetic member 142, which is fixedly connected to the main body 141, and the first magnetic member 142 is correspondingly arranged with the magnetic induction device 120, wherein the magnetic induction device 120 is used to obtain the rotation angle of the first magnetic member 142.

[0187] In this embodiment, a connecting shaft 182 is further provided in the knob assembly 100, and the connecting shaft 182 is arranged on the sixth plate surface 164. A socket 184 is provided on the main body 141 of the magnetic knob 140. The connecting shaft 182 can be inserted into the socket 184, so that the knob assembly 100 can rotate with the connecting shaft 182 as the rotation axis, and the cooperation between the connecting shaft 182 and the socket 184 enables the knob assembly 100 to be detachably connected to the main body 141.

[0188] In this embodiment, the magnetic knob 140 includes a body 141 and a first magnetic member 142 fixedly connected to the body 141. The first magnetic member 142 is an induction magnetic member, and the first magnetic member 142 is fixedly connected to the body 141 of the knob, that is, the first magnetic member 142 can be driven to rotate when the knob body 141 rotates. The magnetic induction device 120 is arranged opposite to the first magnetic member 142, and the magnetic induction device 120 can obtain the rotation angle of the first magnetic member 142 rotating with the knob body 141, and output a control signal according to the rotation angle.

[0189] Exemplarily, the body 141 may be selected to be a metal having ferromagnetism, for example, an iron knob body 141 .

[0190] Exemplarily, the body 141 may also be made of a magnetic material. For example, the knob is a magnetic knob 140 . The body 141 is attracted to the first magnetic member 142 by the principle of opposites attracting each other.

[0191] In this embodiment, the magnetic knob 140 includes a body 141 and a first magnetic member 142. The first magnetic member 142 is used as an induction magnetic member, so that the magnetic knob 140 can generate a magnetic field, and the magnetic induction device 120 can collect the magnetic field change information when the magnetic knob 140 rotates. When the magnetic knob 140 rotates, the first magnetic member 142 can rotate together with the body 141, ensuring the accuracy of the magnetic induction device 120 determining the rotation angle according to the magnetic field change information, and through the cooperation of the connecting shaft 182 and the jack 184, the magnetic knob 140 can be detachably connected to the body 141, further improving the convenience of the user in performing daily maintenance on the magnetic knob 140.

[0192] In any of the above embodiments, the knob assembly 100 further includes a fixing member 170 disposed on the fifth plate surface 162 , and the magnetic induction device 120 is disposed on the fixing member 170 .

[0193] In the embodiment of the present application, the magnetic induction device 120 in the knob assembly 100 can be stably mounted on the fifth plate surface 162 through the fixing member 170 .

[0194] Fig.11 The schematic diagram of the structure of the electrical equipment provided by some embodiments of the present application is shown as follows: Figures 1 to 11 As shown, according to one embodiment of the present application, an electrical device 200 is proposed, including: a shell 202, a magnetic induction device 120 and a magnetic knob 140; the magnetic induction device 120 is arranged on the inner side of the shell 202; the magnetic knob 140 is arranged on the outer side of the shell 202, and the magnetic knob 140 is arranged corresponding to the magnetic induction device 120, wherein the magnetic induction device 120 can obtain the rotation angle of the magnetic knob 140 according to the change of the magnetic field of the magnetic knob 140.

[0195] In this embodiment, the electrical device 200 includes a housing 202 , a magnetic induction device 120 is disposed on the inner side of the housing 202 , a magnetic knob 140 is disposed on the outer side of the housing 202 , the magnetic knob 140 is disposed opposite to the magnetic induction device 120 , and the magnetic knob 140 is detachably connected to the outer side of the housing 202 .

[0196] The magnetic induction device 120 collects the magnetic field change information of the magnetic knob 140, and determines the rotation angle of the magnetic knob 140 based on the magnetic field change information. It is understandable that the magnetic induction device 120 can collect the magnetic field information generated by the magnetic knob 140 without contacting the magnetic knob 140. Therefore, the magnetic induction device 120 and the magnetic knob 140 are respectively arranged on both sides of the first plate surface, and the magnetic induction device 120 and the magnetic knob 140 are arranged without contact, which solves the problem of dirt and grime being easily hidden between the connection structure of the sensor device and the control knob in the related art.

[0197] Exemplarily, the electrical device 200 includes a microwave oven, the magnetic induction device 120 is disposed inside the shell 202 of the microwave oven, and the magnetic induction device 120 is connected to the controller of the microwave oven, and the magnetic knob 140 is disposed outside the shell 202 of the microwave oven. When the user rotates the magnetic knob 140 outside the shell 202, the magnetic induction device 120 inside the shell 202 can collect the magnetic field change information of the magnetic knob 140, and transmit the magnetic field change information to the controller to determine the rotation angle of the magnetic knob 140 operated by the user.

[0198] In the embodiment of the present application, the electrical device 200 includes a shell 202, and a magnetic knob 140 and a magnetic induction device 120 are respectively arranged on the inner and outer sides of the shell 202. The magnetic induction device 120 can collect the magnetic field generated by the magnetic knob 140 when it rotates, and determine the rotation angle of the magnetic knob 140 according to the collected magnetic field information, thereby transmitting a corresponding control signal. Since the magnetic knob 140 and the magnetic induction device 120 do not need to be in direct contact, dirt and grime are avoided at the connection position between the magnetic knob 140 and the magnetic induction device 120, and the magnetic knob 140 is easy to maintain and clean.

[0199] like Figures 1 to 11 As shown, in any of the above embodiments, the electrical device 200 further includes: a second magnetic member 130, which is disposed on the inner wall of the housing 202 and is disposed corresponding to the magnetic knob 140;

[0200] The magnetic knob 140 includes: a body; and a third magnetic component 143 connected to the body. The body is attracted to the second magnetic component 130 through the magnetism of the third magnetic component 143 .

[0201] In this embodiment, the electrical device 200 further includes a second magnetic member 130, and a third magnetic member 143 is disposed in the magnetic knob 140, and the magnetic knob 140 can be installed in the electrical device 200 through the second magnetic member 130 and the third magnetic member 143. Since the second magnetic member 130 and the third magnetic member 143 can attract each other, when the second magnetic member 130 is disposed in the electrical device 200, the magnetic knob 140 can be installed in the electrical device 200 under the action of the magnetic force between the third magnetic member 143 and the second magnetic member 130.

[0202] Specifically, by arranging both the magnetic induction device 120 and the second magnetic member 130 inside the electrical device 200, and arranging the magnetic knob 140 outside the electrical device 200, under the magnetic force of the third magnetic member 143 in the magnetic knob 140 and the second magnetic member 130, the magnetic knob 140 can be firmly attracted to the outer wall of the electrical device 200. The first magnetic member 142 in the magnetic knob 140 is arranged opposite to the magnetic induction device 120, and when the magnetic knob 140 rotates, the magnetic induction device 120 can collect the magnetic field change of the magnetic knob 140, thereby collecting the rotation information of the magnetic knob 140.

[0203] Exemplarily, the third magnetic member 143 can be rotatably connected to the body of the knob, that is, the body can rotate relative to the third magnetic member 143. When the third magnetic member 143 and the second magnetic member 130 are fastened and attracted by magnetic force, the body can drive the first magnet as the induction magnet to rotate, so that the magnetic induction device 120 can collect the magnetic field changes of the first magnetic member 142, while also avoiding the displacement of the magnetic knob 140 caused by the rotation of the third magnetic member 143 relative to the second magnetic member 130, thereby improving the accuracy of determining the rotation angle of the magnetic knob 140 based on the collected magnetic field information.

[0204] In the embodiment of the present application, the knob assembly includes a second magnetic component 130, and the second magnetic component 130 can cooperate with the third magnetic component 143 connected to the knob body to install the magnetic knob 140 at a suitable installation position in the electronic device, and the magnetic knob 140 is installed by magnetic attraction, so that the magnetic knob 140 is connected to the electrical device 200 in a detachable manner, which facilitates the magnetic knob 140 to be disassembled and cleaned separately.

[0205] like Figures 1 to 11 As shown, in any of the above embodiments, the housing 202 is provided with a mounting opening 204;

[0206] The electrical device 200 also includes: a second panel 150, the second panel 150 includes a third panel surface and a fourth panel surface opposite to each other, the third panel surface is located on the inner side of the shell 202, and the fourth panel surface is located on the outer side of the shell 202, and the second panel 150 is a magnetic panel; wherein the magnetic induction device 120 is arranged on the third panel surface, and the magnetic knob 140 is adsorbed on the fourth panel surface.

[0207] In this embodiment, the electrical device 200 further includes a second panel 150, which is mounted at the mounting opening 204 of the housing 202. The second panel 150 has a third panel surface and a fourth panel surface facing each other, the third panel surface is a panel surface facing the inside of the electrical device 200, and the fourth panel surface is a panel surface facing the outside of the electrical device 200. The magnetic induction device 120 is disposed on the third panel surface, and the magnetic knob 140 is disposed on the fourth panel surface, and the magnetic knob 140 is disposed opposite to the magnetic induction device 120. The second panel 150 is a magnetic panel, and the magnetic knob 140 can be detachably connected to the fourth panel surface by magnetic attraction with the second panel 150.

[0208] When the magnetic knob 140 rotates relative to the second panel 150, since the second panel 150 remains relatively still, the magnetic field change information collected by the magnetic induction device 120 is caused by the rotation of the magnetic knob 140, and the rotation angle of the magnetic knob 140 is determined based on the magnetic field change information. It can be understood that the magnetic induction device 120 can collect the magnetic field information generated by the magnetic knob 140 without contacting the magnetic knob 140. Therefore, the magnetic induction device 120 and the magnetic knob 140 are respectively arranged on both sides of the third panel surface, and the magnetic induction device 120 and the magnetic knob 140 are arranged without contact, which solves the problem of dirt and grime easily lurking between the connection structure of the sensor device and the control knob in the related art.

[0209] Exemplarily, the knob assembly is arranged on the microwave oven, the second panel 150 is the control panel of the microwave oven, the third panel faces the inside of the microwave oven, the fourth panel faces the outside of the microwave oven, the magnetic induction device 120 is arranged in the microwave oven, and the magnetic induction device 120 is connected to the controller of the microwave oven, and the magnetic knob 140 is arranged outside the microwave oven. When the user rotates the magnetic knob 140 at the fourth panel, the magnetic induction device 120 at the third panel can collect the magnetic field change information of the magnetic knob 140, and transmit the magnetic field change information to the controller to determine the rotation angle of the magnetic knob 140 operated by the user.

[0210] In the embodiment of the present application, the knob assembly includes a second panel 150, and a magnetic knob 140 and a magnetic sensing device 120 arranged on both sides of the second panel 150. The magnetic sensing device 120 can collect the magnetic field generated by the magnetic knob 140 when it rotates, and determine the rotation angle of the magnetic knob 140 based on the collected magnetic field information, thereby transmitting a corresponding control signal. Since the magnetic knob 140 and the magnetic sensing device 120 do not need to be in direct contact, dirt and grime are avoided at the connection position between the magnetic knob 140 and the magnetic sensing device 120, and the magnetic knob 140 can be adsorbed on the magnetic second panel 150, so that the magnetic knob 140 can be detachably arranged on the second panel 150, which further facilitates the maintenance and cleaning of the magnetic knob 140.

[0211] like Figures 1 to 11 As shown, in any of the above embodiments, the electrical device 200 further includes: a connecting shaft 182 fixedly disposed on the outer wall of the housing 202; and a magnetic knob 140 having a socket, and the magnetic knob 140 is rotatably connected to the connecting shaft 182 via the socket.

[0212] In this embodiment, the electrical device 200 also includes a connecting shaft 182, which is arranged on the outer wall of the shell 202. A socket is provided on the body of the magnetic knob 140. The connecting shaft 182 can be inserted into the socket, so that the knob assembly can rotate with the connecting shaft 182 as the rotation axis. The connection shaft 182 and the socket cooperate to enable the knob assembly to be detachably connected to the body.

[0213] In the embodiment of the present application, the magnetic knob 140 can be detachably connected to the body through the cooperation of the connecting shaft 182 and the socket, which further improves the convenience of the user in performing daily maintenance of the magnetic knob 140.

[0214] It should be clarified that in the claims, specification and drawings of the present application, the term "multiple" refers to two or more than two. Unless otherwise clearly defined, the orientation or position relationship indicated by the terms "upper" and "lower" is based on the orientation or position relationship shown in the drawings, which is only for the purpose of more conveniently describing the present application and making the description process easier, rather than indicating or implying that the device or element referred to must have the specific orientation described, be constructed and operated in a specific orientation, so these descriptions cannot be understood as limitations on the present application; the terms "connect", "install", "fix" and the like should be understood in a broad sense. For example, "connection" can be a fixed connection between multiple objects, or a detachable connection between multiple objects, or an integral connection; it can be a direct connection between multiple objects, or an indirect connection between multiple objects through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood based on the specific circumstances of the above data.

[0215] In the claims, specification and drawings of the present application, the description of the terms "one embodiment", "some embodiments", "specific embodiments" and the like means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In the claims, specification and drawings of the present application, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0216] The above are only preferred embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A knob assembly, characterized in that: include: Magnetic induction devices; A magnetic knob is arranged corresponding to the magnetic induction device, wherein the magnetic induction device can obtain the rotation angle of the magnetic knob according to the change of the magnetic field of the magnetic knob.

2. The knob assembly according to claim 1, characterized in that: The magnetic knob comprises: ontology; The first magnetic member is fixedly connected to the body, and the first magnetic member is arranged corresponding to the magnetic induction device, wherein the magnetic induction device is used to obtain the rotation angle of the first magnetic member.

3. The knob assembly according to claim 2, characterized in that: The knob assembly also includes: A second magnetic member, arranged corresponding to the magnetic knob; The magnetic knob also includes: The third magnetic component is connected to the body, and the body is attracted to the second magnetic component through the magnetism of the third magnetic component.

4. The knob assembly according to claim 3, characterized in that: The magnetic poles of the first magnetic component and the magnetic poles of the second magnetic component are staggered.

5. The knob assembly according to claim 3, characterized in that: The positive pole of the second magnetic member is arranged correspondingly to the negative pole of the third magnetic member, and the negative pole of the second magnetic member is arranged correspondingly to the positive pole of the third magnetic member.

6. The knob assembly according to claim 3, characterized in that: The third magnetic member is ring-shaped; The magnetic knob also includes: A limiting ring, arranged on the main body; A limiting post is arranged on the body and is located in the limiting ring. An annular groove is formed between the limiting post and the limiting ring, and the annular groove is used to accommodate the third magnetic component.

7. The knob assembly according to claim 6, characterized in that: The second magnetic component is ring-shaped, the outer diameter of the third magnetic component matches the outer diameter of the second magnetic component, and / or the inner diameter of the third magnetic component matches the inner diameter of the second magnetic component.

8. A knob assembly, characterized in that: include: A first panel includes a first panel surface and a second panel surface facing away from each other. A magnetic induction device, arranged on the first plate surface; A magnetic knob is arranged corresponding to the magnetic induction device, wherein the magnetic induction device and the magnetic knob are attracted to each other magnetically, and the magnetic induction device can obtain the rotation angle of the magnetic knob according to the change of the magnetic field of the magnetic knob.

9. The knob assembly according to claim 8, characterized in that: The magnetic knob comprises: ontology; The first magnetic member is fixedly connected to the body, and the first magnetic member is arranged corresponding to the magnetic induction device, wherein the magnetic induction device is used to obtain the rotation angle of the first magnetic member.

10. The knob assembly according to claim 9, characterized in that: The knob assembly also includes: A second magnetic member is disposed on the first panel surface and is disposed corresponding to the magnetic knob; The magnetic knob also includes: The third magnetic component is connected to the body, and the body is attracted to the second magnetic component through the magnetism of the third magnetic component.

11. A knob assembly, characterized in that: include: A second panel, the second panel comprising a third panel surface and a fourth panel surface opposite to each other, wherein the second panel is a magnetic panel; A magnetic induction device, arranged on the third plate surface; A magnetic knob is adsorbed on the fourth plate surface, and the magnetic knob is arranged corresponding to the magnetic induction device, wherein the magnetic induction device can obtain the rotation angle of the magnetic knob according to the magnetic field change of the magnetic knob.

12. The knob assembly according to claim 11, characterized in that: The magnetic knob comprises: ontology; The first magnetic member is fixedly connected to the body, and the first magnetic member is arranged corresponding to the magnetic induction device, wherein the magnetic induction device is used to obtain the rotation angle of the first magnetic member.

13. The knob assembly according to claim 12, characterized in that: The magnetic knob also includes: The third magnetic component is connected to the body, and the body is attracted to the fourth plate surface through the magnetism of the third magnetic component.

14. The knob assembly according to any one of claims 11 to 13, characterized in that: Also includes: A fixing member is arranged on the third plate surface, and the magnetic induction device is arranged on the fixing member.

15. A knob assembly, characterized in that: include: A third panel, the third panel comprising a fifth panel surface and a sixth panel surface facing away from each other; A magnetic induction device, arranged on the fifth plate surface; A connecting member, arranged on the sixth plate surface; A magnetic knob is detachably connected to the connecting piece, the magnetic knob can rotate relative to the connecting piece, and the magnetic knob is arranged corresponding to the magnetic induction device, wherein the magnetic induction device can obtain the rotation angle of the magnetic knob according to the magnetic field change of the magnetic knob.

16. The knob assembly according to claim 15, characterized in that: The connecting piece comprises: A connecting shaft, fixedly disposed on the sixth plate surface; The magnetic knob comprises: A body, wherein the body is provided with a plug hole, and the body is rotatably connected to the connecting shaft through the plug hole; The first magnetic member is fixedly connected to the body, and the first magnetic member is arranged corresponding to the magnetic induction device, wherein the magnetic induction device is used to obtain the rotation angle of the first magnetic member.

17. The knob assembly according to claim 15 or 16, characterized in that: Also includes: A fixing member is arranged on the fifth plate surface, and the magnetic induction device is arranged on the fixing member.

18. An electrical device, characterized in that: include: case; A magnetic induction device is arranged inside the shell; A magnetic knob is arranged outside the shell, and the magnetic knob is arranged corresponding to the magnetic induction device, wherein the magnetic induction device can obtain the rotation angle of the magnetic knob according to the magnetic field change of the magnetic knob.

19. The electrical device according to claim 18, characterized in that: The electrical equipment also includes: A second magnetic member is disposed on the inner side wall of the housing and is disposed corresponding to the magnetic knob; The magnetic knob comprises: ontology; The third magnetic component is connected to the body, and the body is attracted to the second magnetic component through the magnetism of the third magnetic component.

20. The electrical device according to claim 18, characterized in that: The housing is provided with a mounting opening; The electrical equipment also includes: A second panel, the second panel comprising a third panel surface and a fourth panel surface facing each other, the third panel surface is located on the inner side of the shell, the fourth panel surface is located on the outer side of the shell, and the second panel is a magnetic panel; Wherein, the magnetic induction device is arranged on the third plate surface, and the magnetic knob is adsorbed on the fourth plate surface.

21. The electrical device according to claim 18, characterized in that: The electrical equipment also includes: A connecting shaft, fixedly disposed on the outer side wall of the shell; The magnetic knob is provided with a socket, and the magnetic knob is rotatably connected to the connecting shaft through the socket.

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