Magnetic knobs and electrical equipment

Abstract

The present application relates to the field of electrical appliances, and discloses a magnetic control knob and an electrical device, wherein the magnetic control knob comprises: a wireless charging receiving module for receiving electric energy transmitted from a wireless charging transmitting module of the electrical device; and a power supply module connected to the wireless charging receiving module for converting the electric energy received by the wireless charging receiving module into DC low-voltage electric energy to power the magnetic control knob. In the embodiment of the present application, by setting a wireless charging receiving module and a power supply module in the magnetic control knob, the electrical device can wirelessly charge the magnetic control knob, thereby enabling the magnetic control knob to be set with a variety of power-consuming components, so that the functions of the magnetic control knob are more abundant.

Description

Technical Field

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

[0002] In the field of household appliances, appliances are usually equipped with operation panels, and the functional operation methods of appliances have become diversified, such as mechanical knobs, touch, buttons, etc. At present, a defect of the mature mechanical knob operation method is that the operation panel needs to have a hole, which brings inconvenience to the user's subsequent cleaning work and directly affects the product experience. In order to improve the user experience, the prior art proposes a magnetic control knob that does not require an operation panel hole, and the functional operation of the appliance is realized by the magnetic control knob. However, due to the lack of an ideal technical solution for powering the magnetic control knob in the prior art, the existing magnetic control knobs almost do not include power-consuming components, which makes the magnetic control knob only able to achieve a basic single function. Summary of the invention

[0003] In order to at least partially solve the above problems existing in the prior art, the purpose of the present application is to provide a magnetic control knob and an electrical device.

[0004] In order to achieve the above-mentioned purpose, the present application provides a magnetic control knob, which is used to control an electrical device. The magnetic control knob includes: a wireless charging receiving module, which is used to receive electric energy transmitted from a wireless charging transmitting module of the electrical device; and a power supply module, which is connected to the wireless charging receiving module and is used to convert the electric energy received by the wireless charging receiving module into DC low-voltage electric energy to power the magnetic control knob.

[0005] Optionally, the power supply module further includes: an energy storage unit, which is used to store the electric energy received by the wireless charging receiving module.

[0006] Optionally, the magnetic control knob also includes: a rotation detection module, used to detect the rotation state of the magnetic control knob and send a rotation state signal indicating the rotation state; and a wireless communication module, connected to the rotation detection module, used to receive the rotation state signal and send the rotation state signal to the electrical device wirelessly; wherein the rotation detection module and the wireless communication module are powered by the power supply module.

[0007] Optionally, the magnetic control knob also includes: an input module, used to input a control signal to the magnetic control knob; a main control module, connected to the input module and the rotation detection module, used to process the control signal and the rotation status signal; and a printed circuit board, the main control module is integrated on the printed circuit board; wherein the input module and the main control module are powered by the power supply module.

[0008] Optionally, the wireless charging receiving module includes a receiving coil, and the receiving coil is arranged under the printed circuit board or formed on the printed circuit board.

[0009] Optionally, the magnetic control knob further includes: a display module connected to the main control module and used for displaying information.

[0010] Optionally, the magnetic control knob further includes: a magnet, wherein the magnet is located below the printed circuit board and in a central area of ​​the magnetic control knob.

[0011] On the other hand, the present application also provides an electrical device, which includes: an operation panel; a main control board located below the operation panel; and a wireless charging transmitter module for wirelessly transmitting electrical energy.

[0012] Optionally, the wireless charging transmitting module includes a transmitting coil, and the transmitting coil is arranged above the main control board or formed on the main control board.

[0013] Optionally, the electrical equipment body further includes: a magnet, which is located above the main control board and in the central area of ​​the transmitting coil.

[0014] The electrical device further comprises: a wireless communication module for receiving a control signal from the magnetic control knob; and a processing module located on the main control board for processing the control signal.

[0015] The embodiments of the present application can realize wireless charging of the magnetic control knob by an electrical device by setting a wireless charging receiving module and a power supply module in the magnetic control knob, thereby enabling the magnetic control knob to be equipped with a variety of power-consuming components, thereby enriching the functions of the magnetic control knob.

[0016] Other features and advantages of the present application will be described in detail in the subsequent detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings are used to provide a further understanding of the present application and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present application but do not constitute a limitation to the present application. In the accompanying drawings:

[0018] Figure 1 is a block diagram of a magnetic control knob provided in one embodiment of the present application;

[0019] Figure 2 is a block diagram of a magnetic control knob and an electrical device provided in an optional embodiment of the present application;

[0020] Figure 3is a block diagram of a magnetic control knob provided in an optional embodiment of the present application;

[0021] Figure 4 is a schematic diagram of a magnetic control knob and an electrical device provided in an optional embodiment of the present application;

[0022] Figure 5 is a block diagram of an electrical device provided in one embodiment of the present application; and

[0023] Figure 6 This is a block diagram of an electrical device provided by an optional implementation of the present application.

[0024] Description of Reference Numerals

[0025] 10 Magnetic control knob 11 Wireless charging receiving module

[0026] 12 Power supply module 13 Rotation detection module

[0027] 14 wireless communication module 15 input module

[0028] 16 Main control module 17 Display module

[0029] 18 housing 19 PCB substrate

[0030] 111 receiving coil 101 magnet

[0031] 121 voltage regulator circuit 131 rotation sensor

[0032] 20 Electrical equipment 21 Wireless charging transmitter module

[0033] 22 wireless communication module 23 processing module

[0034] 24 Operation panel 25 PCB substrate

[0035] 211 Transmitting coil 201 Magnet DETAILED DESCRIPTION

[0036] The specific implementation of the present application is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described here is only used to illustrate and explain the present application, and is not used to limit the present application.

[0037] Figure 1 is a block diagram of a magnetically controlled knob provided in one embodiment of the present application. Figure 1As shown, the embodiment of the present application provides a magnetic control knob, and the magnetic control knob 10 can be used to control an electrical device. The magnetic control knob 10 may include a wireless charging receiving module 11 and a power supply module 12, wherein the wireless charging receiving module 11 is wirelessly connected to the wireless charging transmitting module 21 of the electrical device, and the wireless charging receiving module 11 is used to receive the electric energy transmitted from the wireless charging transmitting module 21 of the electrical device. The power supply module 12 is connected to the wireless charging receiving module 11, and the power supply module 12 is used to convert the electric energy received by the wireless charging receiving module 11 into DC low-voltage electric energy to power the magnetic control knob 10.

[0038] Generally speaking, the wireless charging receiving module 11 and the wireless charging transmitting module 21 transmit electric energy through the principle of electromagnetic induction, so the electric energy output by the wireless charging receiving module 11 is generally high-frequency alternating current. The function of the power supply module 12 is to convert the high-frequency alternating current output by the wireless charging receiving module 11 into low-voltage direct current that can directly power other power-consuming components. Therefore, the power supply module 12 can include a rectifier circuit, a voltage stabilizing circuit, a transformer circuit and / or a filter circuit according to design requirements.

[0039] The electrical device may be any electrical device that can be suitable for knob operation, such as an induction cooker, a microwave oven, a gas stove, etc.

[0040] The embodiments of the present application can realize wireless charging of the magnetic control knob by an electrical device by setting a wireless charging receiving module and a power supply module in the magnetic control knob, thereby enabling the magnetic control knob to be equipped with a variety of power-consuming components, thereby enriching the functions of the magnetic control knob.

[0041] Furthermore, in an optional embodiment of the present application, the power supply module 12 may also include an energy storage unit (not shown), which is used to store the electric energy received by the wireless charging receiving module 11. That is to say, in the embodiment of the present application, for the electronic components arranged in the magnetic control knob 10, there are two forms of power supply, one is that the electric energy output by the wireless charging receiving module 11 is converted into direct current by the power supply module 12 and then directly supplies power to other power-consuming components, and the other is that the power supply module 12 includes an energy storage unit, and the electric energy output by the wireless charging receiving module 11 can be converted into direct current to charge the energy storage unit, and then the energy storage unit supplies power to other electronic components, wherein the latter does not need to supply power to the magnetic control knob 10 in real time by wireless charging when in use, and only needs to charge the energy storage unit and / or other electronic components by wireless charging when the power of the energy storage unit is low.

[0042] In specific applications, the implementation scheme for detecting the rotation state of the magnetic control knob may include the use of the Hall effect principle or the optical principle. Specifically, if the Hall effect principle is used, it is necessary to set a Hall element on the operating circuit board of the electrical device and in the main body of the magnetic control knob, and realize the functional operation through communication between the two. If the judgment value between the two changes, it can be known that the magnetic control knob has rotated, and the change can be converted into a specific angle value of the rotation. If the optical principle is used, it is necessary to set an optical transmitter and an optical receiver on the operating circuit board of the electrical device and in the main body of the magnetic control knob, respectively, and convert the optical signal into an electrical signal to realize communication. If the optical receiver receives the optical signal of the transmitter, it can be known that the knob has rotated. Similarly, the optical signal can be converted into a specific angle value of the rotation.

[0043] However, the above two solutions have certain disadvantages. For example, the disadvantage of the solution using the Hall effect principle is that it needs to add special peripheral circuits and the cost is relatively high. The solution using the optical principle has the disadvantages of being easily affected by stains on the operation panel (blocking the propagation and reception of light) and being relatively expensive. In addition, whether the magnetic control knob adopts the Hall effect or the optical principle, there are certain requirements for the thickness of the magnetic control knob. Since the thickness of the magnetic control knob of the above two solutions is too thick, it also affects the appearance of the product to a certain extent.

[0044] In order to solve the above shortcomings, Figure 2 As shown, in a preferred embodiment of the present application, the magnetic control knob 10 further includes a rotation detection module 13 and a wireless communication module 14. The rotation detection module 13 and the wireless communication module 14 are both powered by the power supply module 12, wherein the rotation detection module 13 is used to detect the rotation state (such as rotation direction, rotation angular velocity, rotation angle, etc.) of the magnetic control knob 10, and send a rotation state signal indicating the rotation state to the wireless communication module 14. The wireless communication module 14 is connected to the rotation detection module 13, and is used to receive the rotation state signal sent from the rotation detection module 13, and send the rotation state signal to the wireless communication module 22 of the electrical device 20 by wireless means, and the wireless communication module 22 then sends the rotation state signal to the processing module 23 of the electrical device 20, and the processing module 23 controls the electrical device 20 accordingly according to the rotation state signal. Among them, the rotation detection module 13 can be, for example, a rotation sensor or an angle sensor, etc., the wireless communication modules 14 and 22 can be, for example, Zigbee modules, Bluetooth modules or WiFi modules, etc., and the processing module 23 can be, for example, a MUC (Microcontroller Unit) or a microprocessor, etc.

[0045] During use, when the user turns the magnetic control knob 10, the rotation detection module 13 detects the rotation state of the magnetic control knob 10, and sends the rotation state of the magnetic control knob 10 to the electrical device 20 through the wireless communication module 14, thereby realizing the detection of the rotation state of the magnetic control knob 10 by the electrical device 20, and the electrical device 20 can perform corresponding actions according to the rotation state of the magnetic control knob 10.

[0046] Through the above technical solution, the rotation state of the magnetic control knob 13 can be detected by the rotation detection module, and the mutual communication between the magnetic control knob 10 and the electrical device 20 can be realized through the wireless communication module 14. Therefore, the rotation state of the magnetic control knob 10 can be detected without the need for a peripheral circuit, and will not be affected by stains on the operating panel of the electrical device 20. Compared with the solution using the Hall effect principle and the optical principle, the above technical solution has lower cost, and the thickness of the magnetic control knob 10 can also be reduced, so that the appearance of the magnetic control knob 10 is more beautiful.

[0047] Figure 3 is a block diagram of a magnetically controlled knob provided in an optional embodiment of the present application. Figure 3 As shown, in an optional embodiment of the present application, since the magnetic control knob 10 can be wirelessly charged, a variety of power-consuming components can be set in the magnetic control knob 10 to enrich the functions of the magnetic control knob 10. For example, in an optional embodiment, the magnetic control knob 10 may include an input module 15 and a main control module 16, and the input module 15 and the main control module 16 are both powered by the power supply module 12. Among them, the input module 15 is used for the user to input a control signal to the magnetic control knob 10, so as to perform human-computer interaction. The main control module 16 is connected to the input module 15 and the rotation detection module 13, and can be used to process the control signal and the rotation state signal, and perform various logical controls on the magnetic control knob 10.

[0048] Further, the magnetic control knob 10 may further include a display module 17, which is connected to the main control module 16 and powered by the power supply module 12. The display module 17 may be located on the upper surface of the magnetic control knob 10 to display information on the magnetic control knob 10. The display module 17 may be, for example, an LCD screen or an OLED screen, the input unit 15 may be, for example, a touch button or a physical button, and the main control module 16 may be, for example, an MCU or a microprocessor.

[0049] When in use, the user can input an operation signal to the magnetic control knob 10 through the input unit 15. After the main control module 16 processes the operation signal, it can be sent to the electrical device 20 through the wireless communication module 14 to control the electrical device 20 to perform corresponding actions. It should be understood that the rotation state signal sent by the rotation detection module 13 can be directly sent to the electrical device 20 through the wireless communication module 14, or it can be sent to the electrical device 20 through the wireless communication module 14 after being processed by the main control module 16. In addition, the wireless communication module 14 can also obtain various status information of the electrical device 20 from the wireless communication module 22 of the electrical device 20, and display it through the display module 17 after being processed by the main control module 16. The display module 17 can also obtain the user's input information to the input module 15 from the main control module 16 and display it to realize the user's visual operation.

[0050] Figure 4 Schematic diagram of a magnetic control knob and an electrical device provided in an optional embodiment of the present application. Figure 4 As shown, in an optional embodiment of the present application, the housing 18 of the magnetic control knob 10 may also include a magnet 101 and a PCB substrate 19 (i.e., a printed circuit board), and the electrical device 20 may also include an operating panel 24, a PCB substrate 25 (i.e., a printed circuit board) and a magnet 201.

[0051] In the magnetic control knob 10, the wireless charging receiving module 11 at least includes a receiving coil 111, the power supply module 12 at least includes a voltage stabilizing circuit 121 for wireless charging, the rotation detection module 13 can be, for example, a rotation sensor 131, and the wireless communication module 14 can have a variety of options, such as a Zigbee module, a Bluetooth module or a WiFi module. The PCB substrate 19 (i.e., the printed circuit board) is located below the voltage stabilizing circuit 121, the rotation sensor 131 and the wireless transmission module 14, the magnet 101 is located below the PCB substrate 19 and in the bottom center area of ​​the magnetic control knob 10, the receiving coil 111 is arranged around the magnet 101, and the main control module 16 ( Figure 4 (not shown) can be integrated on the PCB substrate 19.

[0052] In the electrical device 20, the wireless charging transmitter module 21 at least includes a transmitter coil 211, a magnet 201 is located below the operation panel 24, the transmitter coil 211 is arranged around the magnet 201, and the PCB substrate 25 is located below the magnet 201. The operation panel 24 can be, for example, a black glass panel, a ceramic panel, or a microcrystalline panel.

[0053] In an optional embodiment of the present application, the magnet 101 and the magnet 201 can be the same size, and the receiving coil 111 and the transmitting coil 211 are respectively arranged corresponding to the magnet 101 and the magnet 201, so that when the magnet 101 and the magnet 201 are relatively positioned, the relative position of the receiving coil 111 and the transmitting coil 211 is in a position that is most conducive to power transmission, that is, the coupling coefficient between the two coils is most suitable. That is, in this embodiment, the magnet 101 and the magnet 201 have two functions, one of which is to fix the magnetic control knob 10 on the operation panel 24; the other is the alignment function, so that when the user places the magnetic control knob 10 on the operation panel 24, the receiving coil 111 and the transmitting coil 211 are in a suitable position and are not easily misplaced.

[0054] In an optional implementation manner of the present application, the receiving coil 111 can be arranged in two ways, one of which is as follows: Figure 4 As shown in FIG. 1 , the receiving coil 111 can be directly arranged below the PCB substrate 19. Alternatively, the receiving coil 111 is formed on the PCB substrate 19, that is, the receiving coil 111 is formed by routing on the PCB substrate 19. Similarly, the transmitting coil 211 can also be arranged in two ways, one of which is as follows: Figure 4 As shown, the transmitting coil 211 can be directly arranged above the PCB substrate 25. Another option is that the transmitting coil 211 is formed on the PCB substrate 25, that is, the transmitting coil 211 is formed by routing on the PCB substrate 25.

[0055] In addition, it is understandable that those skilled in the art can integrate part or all of the components of the power supply module 12, rotation detection module 13, wireless communication module 14, input module 15, and display module 17 in the magnetic control knob 10 on the PCB substrate 19 as needed; similarly, part or all of the components of the processing module 23 and the wireless communication module 22 can be integrated on the PCB substrate 25 as needed.

[0056] Figure 5 is a block diagram of an electrical device provided in one embodiment of the present application. Figure 5 As shown, the embodiment of the present application further provides an electrical device 20, which includes an operation panel 24, a PCB substrate 25 as a main control board, and a wireless charging transmitter module 21. The PCB substrate 25 can be arranged below the operation panel 24, and the wireless charging transmitter module 21 is used for wireless transmission of electric energy, which can transmit electric energy to the wireless charging receiving module 11 inside the magnetic control knob 10 in a wireless manner.

[0057] like Figure 4As shown, in an optional embodiment of the present application, the wireless charging transmitter module 21 at least includes a transmitter coil 211, and the transmitter coil 211 can be arranged above the PCB substrate 25 or formed on the PCB substrate 25. In addition, the electrical device 20 can also include a magnet 201, and the magnet 201 can be located above the PCB substrate 25 and in the central area of ​​the transmitter coil 211.

[0058] Figure 6 is a block diagram of an electrical device provided by an optional embodiment of the present application. Figure 6 As shown, the electrical device 20 further includes a wireless communication module 22 and a processing module 23. The wireless communication module 22 is used to receive a control signal from the magnetic control knob 10. The control signal may be sent by the wireless communication module 14 of the magnetic control knob 10. The control signal may include a rotation state signal and a manipulation signal. The processing module 23 may be integrated on a main control board (not shown) to process the control signal and control the electrical device 20 to perform corresponding actions according to the control signal. The main control board may be, for example, a PCB substrate.

[0059] Compared with mechanical knobs, the above technical solution of the present application has the advantages of no need to open holes in the operation panel, easy cleaning, and the ability to quickly and accurately adjust electrical equipment (such as gear adjustment and timing adjustment, etc.). In addition, the technical solution of the present application also solves the power supply problem of the magnetic control knob, so that a variety of power-consuming components can be set in the magnetic control knob to enrich the functions of the magnetic control knob.

[0060] The above describes in detail the implementation methods of the present application in conjunction with the accompanying drawings; however, the implementation methods of the present application are not limited to the specific details in the above implementation methods. Within the technical concept of the implementation methods of the present application, various simple modifications can be made to the technical solutions of the implementation methods of the present application, and these simple modifications all belong to the protection scope of the implementation methods of the present application.

[0061] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the embodiments of this application will not further describe various possible combinations.

[0062] In addition, the various different implementations of the embodiments of the present application may be arbitrarily combined, and as long as they do not violate the ideas of the implementations of the present application, they should also be regarded as the contents disclosed in the implementations of the present application.

Claims

1. A magnetic control knob, which is used to control electrical equipment. It is characterized in that The magnetic control knob comprises: A wireless charging receiving module, used to receive electric energy transmitted from the wireless charging transmitting module of the electrical device; and A power supply module, connected to the wireless charging receiving module, and used to convert the electric energy received by the wireless charging receiving module into DC low-voltage electric energy to power the magnetic control knob; a rotation detection module, configured to detect a rotation state of the magnetic control knob and send a rotation state signal indicating the rotation state; and a wireless communication module, connected to the rotation detection module, for receiving the rotation state signal and sending the rotation state signal to the electrical device in a wireless manner; Wherein, the rotation detection module and the wireless signal transmission module are powered by the power supply module; The rotation detection module is configured as a rotation sensor or an angle sensor; The electrical device has a magnet and a wireless charging transmitting module for wirelessly transmitting electrical energy, wherein the wireless charging transmitting module includes a transmitting coil, which is arranged around the magnet; the magnetic control knob also includes a magnet, and the wireless charging receiving module includes a receiving coil, which is arranged around the magnet, and the magnet of the magnetic control knob and the magnet of the electrical device are equal in size.

2. The magnetic control knob according to claim 1, It is characterized in that The power supply module also includes: An energy storage unit, the energy storage unit is used to store the electric energy received by the wireless charging receiving module.

3. The magnetic control knob according to claim 1, It is characterized in that The magnetic control knob also includes: An input module, used for inputting a control signal to the magnetic control knob; a main control module, connected to the input module and the rotation detection module, and configured to process the control signal and the rotation state signal; and A printed circuit board, on which the main control module is integrated; Wherein, the input module and the main control module are powered by the power supply module.

4. The magnetic control knob according to claim 3, It is characterized in that The wireless charging receiving module includes a receiving coil, and the receiving coil is arranged under the printed circuit board or formed on the printed circuit board.

5. The magnetic control knob according to claim 3, It is characterized in that The magnetic control knob also includes: The display module is connected to the main control module and is used to display information.

6. The magnetic control knob according to claim 3, It is characterized in that The magnet is located below the printed circuit board and in the center area of ​​the magnetic control knob.

7. An electrical device, It is characterized in that The electrical device comprises a magnetic control knob according to any one of claims 1 to 6, and Operation panel; a main control panel located below the operation panel; and Wireless charging transmitter module, used for wireless transmission of electrical energy.

8. The electrical device according to claim 7, It is characterized in that The wireless charging transmitting module includes a transmitting coil, and the transmitting coil is arranged above the main control board or formed on the main control board.

9. The electrical equipment body according to claim 8, It is characterized in that The electrical equipment body also includes: A magnet is located above the main control board and in the center of the transmitting coil.

10. The electrical device according to claim 7, It is characterized in that The electrical equipment also includes: A wireless communication module, configured to receive a control signal from the magnetic control knob; and The processing module located on the main control board is used to process the control signal.

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