Control device of electric appliance and clothes treatment device

Abstract

The utility model discloses an electric appliance control device and a clothes processing device, the device comprises a first control unit and a second control unit, the first control unit comprises a first microcontroller MCU, a first control circuit and a power supply, and the second control unit comprises a second microcontroller MCU, a second control circuit and a button control circuit. The power supply is connected with the key control circuit and continuously provides first electric energy for the key control circuit, and the power supply is connected with the first microcontroller MCU and the first control circuit through the first switch; the power supply is connected with the second microcontroller MCU and the second control circuit through the second switch; the key control circuit controls the on-off of the first switch; and the key control circuit controls the on-off of the second switch. According to the device, the on-off of the first switch and the second switch can be controlled through the key control circuit, so that the overall standby power consumption of an electrical product is reduced, and the compliance requirement of the product on the market is met.

Description

Technical Field

[0001] The utility model relates to the technical field of electrical equipment control, in particular to an electrical equipment control device and a clothing processing device. Background Art

[0002] Currently, relatively simple home appliance control boards generally contain only an MCU and a relatively small number of detection and control circuits. When in standby mode, the MCU is usually put into a low-power mode such as sleep to reduce standby power consumption.

[0003] However, as consumers' demands for more and more functional home appliances are becoming more and more complex, the corresponding control circuits of home appliances are also becoming more and more complex. For complex home appliance control boards, since they contain multiple MCUs and various detection and control circuits, the entire control system consumes a lot of power, and it is difficult to meet the standby power consumption requirements in standby mode, making it difficult for products to comply with regulations and be put on the market. Utility Model Content

[0004] The purpose of the present invention is to solve at least one of the above-mentioned technical problems to a certain extent.

[0005] Therefore, the present invention aims to provide a control device for an electrical appliance, which can control the on and off of a first switch and a second switch through a key control circuit, thereby reducing the overall standby power consumption of the electrical appliance and meeting product market compliance requirements.

[0006] To achieve the above-mentioned object, the present invention provides a control device for an electrical appliance in a first aspect, the system comprising:

[0007] A first control unit and a second control unit, wherein the first control unit includes a first microcontroller MCU, a first control circuit and a power supply, and the second control unit includes a second microcontroller MCU, a second control circuit and a key control circuit,

[0008] The power supply is connected to the key control circuit to continuously provide the first electrical energy to the key control circuit. The power supply and the first microcontroller MCU and the first control circuit are connected through a first switch; the power supply and the second microcontroller MCU and the second control circuit are connected through a second switch; the key control circuit controls the on and off of the first switch; and the key control circuit controls the on and off of the second switch.

[0009] In addition, the control device of the electrical appliance in the embodiment of the present invention also has the following additional technical features:

[0010] Optionally, in some embodiments, the key control circuit is used to:

[0011] In the shutdown state, in response to detecting that the power button is pressed, controlling the first switch and the second switch to be turned on;

[0012] Otherwise, keep the first switch and the second switch off.

[0013] Optionally, in some embodiments, the key control circuit is configured to:

[0014] After the first switch and the second switch are turned on, if a key corresponding to a first operation instruction is detected to be pressed, a working procedure corresponding to the first operation instruction is executed based on the first control unit and the second control unit.

[0015] Optionally, in some embodiments, the key control circuit is configured to:

[0016] In the standby state, in response to a preset time length being reached, the first switch and the second switch are controlled to be turned off, and the power-off state is entered.

[0017] Otherwise, the standby state is maintained, and the first switch and the second switch are kept on.

[0018] Optionally, in some embodiments, the first control unit is a load control unit, and the second control unit is a display and interaction component control unit, and the display and interaction component includes a display screen.

[0019] The key control circuit receives trigger information generated by a user touching the display screen.

[0020] Optionally, in some embodiments, the electrical appliance further includes a drying module, and the load includes a strong electric load and a weak electric load,

[0021] The strong electric load at least includes a motor for driving a moisture absorption component to rotate in the drying module, a heater for heating the moisture absorption component to regenerate, a fan for promoting the flow of air heated by the heater, and the strong electric load further includes a door lock and a heater for heating washing water, and the weak electric load at least includes one of a microphone, a loudspeaker, and a sensor.

[0022] Optionally, in some embodiments, the first microcontroller MCU includes a plurality of first microcontrollers MCUs, and at least one first microcontroller MCU is configured to control the drying module.

[0023] Optionally, in some embodiments, the first switch includes a first common terminal and a first contact, and the second switch includes a second common terminal and a second contact.

[0024] The power supply and the first microcontroller MCU, and the first control circuit are connected through the first switch, and include:

[0025] The first common end of the first switch is connected to the power supply, and the first contact of the first switch is connected to the first microcontroller MCU and the first control circuit;

[0026] The power supply, the second microcontroller MCU, and the second control circuit are connected via a second switch, including:

[0027] The second common end of the second switch is connected to the key control circuit, and the second contact of the second switch is connected to the second microcontroller MCU and the second control circuit.

[0028] Optionally, in some embodiments, the button control circuit controls the on and off of the first switch, including:

[0029] In response to the first output signal of the key control circuit being a conduction signal, controlling the first common terminal and the first contact to be in contact with each other, so as to turn on the first switch;

[0030] and / or,

[0031] The button control circuit controls the on and off of the second switch, including:

[0032] In response to the second output signal of the key control circuit being a conduction signal, the second common terminal and the second contact are controlled to be in contact with each other, so that the second switch is turned on.

[0033] Optionally, in some embodiments, a first switch control circuit and a second switch control circuit are further included, wherein the first switch control circuit includes a first diode, a first resistor and inductor RL circuit, and a first transistor.

[0034] One side of the first RL circuit is connected to the anode of the first diode, the other side of the first RL circuit is connected to the cathode of the first diode, and the cathode of the first diode is connected to a first voltage source;

[0035] The anode of the first diode is connected to the collector of the first transistor, the emitter of the first transistor is grounded, and the base of the first transistor is connected to the first output signal of the key control circuit;

[0036] In response to the first output signal of the key control circuit being a conduction signal, controlling the first common terminal and the first contact to be in contact with each other so as to turn on the first switch, comprising:

[0037] In response to the first output signal of the key control circuit being a conduction signal, controlling the first common terminal and the first contact point to contact each other through the first switch control circuit to turn on the first switch;

[0038] and / or,

[0039] The second switch control circuit includes a second diode, a second resistor and inductor RL circuit, and a second transistor;

[0040] One side of the second RL circuit is connected to the anode of the second diode, the other side of the second RL circuit is connected to the cathode of the second diode, and the cathode of the second diode is connected to a second voltage source;

[0041] The anode of the second diode is connected to the collector of the second transistor, the emitter of the second transistor is grounded, and the base of the second transistor is connected to the second output signal of the key control circuit;

[0042] In response to the second output signal of the key control circuit being a conduction signal, controlling the second common terminal and the second contact to be in contact with each other so as to turn on the second switch, comprising:

[0043] In response to the second output signal of the key control circuit being a conduction signal, the second common terminal and the second contact are controlled by the second switch control circuit to be in contact with each other, so that the second switch is turned on.

[0044] Optionally, in some embodiments, a communication circuit is connected between the first microcontroller MCU and the second microcontroller MCU.

[0045] According to a second aspect of the present invention, a clothes processing device is provided, comprising: a control device of an electrical appliance as described in any one of the first aspects above.

[0046] The technical solution provided by the embodiments of the present invention brings at least the following beneficial effects:

[0047] The control device for an electrical appliance includes: a first control unit and a second control unit. The first control unit includes a first microcontroller (MCU), a first control circuit, and a power supply. The second control unit includes a second microcontroller (MCU), a second control circuit, and a key control circuit. The power supply is connected to the key control circuit to continuously provide the key control circuit with a first electrical energy. The power supply, the first microcontroller (MCU), and the first control circuit are connected via a first switch; the power supply, the second microcontroller (MCU), and the second control circuit are connected via a second switch; the key control circuit controls the on / off of the first switch; and the key control circuit controls the on / off of the second switch. The device can control the on / off of the first and second switches through the key control circuit, thereby reducing the overall standby power consumption of the electrical appliance and meeting product market compliance requirements.

[0048] Additional aspects and advantages of the present invention will be given in part in the following description and in part will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF DRAWINGS

[0049] The above and / or additional aspects and advantages of the present practical new type will become apparent and be readily appreciated from the following description, including the accompanying drawings, wherein:

[0050] Figure 1 A structural schematic diagram of a control device of an electric appliance according to an embodiment of the present practical new type is shown in the following figure.

[0051] Figure 2 A structural schematic diagram of a control device of an electric appliance according to another embodiment of the present practical new type is shown in the following figure. DETAILED DESCRIPTION

[0052] The embodiments of the present practical new type will be described in detail below with reference to the accompanying drawings. The embodiments described below are examples for explaining the present practical new type and should not be interpreted in a limiting manner.

[0053] The control device of an electric appliance according to an embodiment of the present practical new type will be described below with reference to the accompanying drawings.

[0054] Figure 1 A structural schematic diagram of a control device of an electric appliance according to an embodiment of the present practical new type is shown in the following figure. Figure 1 As shown in the figure, the device comprises:

[0055] A first control unit and a second control unit, the first control unit comprising a first microcontroller MCU, a first control circuit and a power supply, the second control unit comprising a second microcontroller MCU, a second control circuit and a key control circuit,

[0056] The power supply is connected with the key control circuit to continuously provide the key control circuit with first electric energy, and the power supply and the first microcontroller MCU and the first control circuit are connected through a first switch; the power supply and the second microcontroller MCU and the second control circuit are connected through a second switch; the key control circuit controls the on-off of the first switch; and the key control circuit controls the on-off of the second switch.

[0057] It should be noted that the key control circuit and the power supply are in a state of communication. Thus, the key control circuit is in a state of being powered in the case that the electric appliance is in a standby, shutdown or working state. In the present disclosure, the key can be a physical key or a virtual key, which is not limited.

[0058] The key control circuit can receive trigger information generated by user touch on the display screen.

[0059] As an example, the buttons can be virtual buttons, such as buttons on a display screen, and users can control the operation of loads in the appliance or turn the appliance on or off by touching the display screen. The button control circuit can detect trigger information generated by the user touching all buttons, and the appliance can then perform the next action based on the trigger information.

[0060] As an optional manner, the first control unit may be a load control unit, and the second control unit may be a display and interaction component control unit, wherein the display and interaction component includes a display screen.

[0061] It should be noted that the first control unit may be a main control system in the appliance, ie, a main control unit. The first control unit may be used to control a load in the appliance to work to implement the functions of the appliance, such as washing, drying, and the like.

[0062] Optionally, the appliance also includes a drying module, and the load includes a strong current load and a weak current load.

[0063] The high-voltage load includes at least a motor in the drying module for driving the desiccant component to rotate, a heater for heating the desiccant component for regeneration, and a fan for promoting the flow of air heated by the heater. The high-voltage load also includes a door lock and a heater for heating washing water. The low-voltage load includes at least one of the following: a microphone, a speaker, and a sensor.

[0064] More specifically, the first control unit can be responsible for the overall control and coordination of the electrical equipment, can receive instructions or signals transmitted from the first control unit, and according to a preset program or algorithm, control the various components in the appliance (i.e., loads) to operate in a predetermined manner to achieve specific functions of the appliance, such as washing, drying, etc.

[0065] Among them, the load is the component in the electrical appliance that performs specific work tasks. According to the electrical characteristics and functional requirements of the load, the load can be divided into two categories: high-current load and low-current load.

[0066] Among them, high-current loads usually refer to components that require higher voltage and current to drive. High-current loads may include:

[0067] The motor drives the absorbent assembly (such as the drum in a dryer) to rotate, tumbling and drying the clothes. The heater generates heat, either heating the absorbent assembly or the wash water to improve drying efficiency or washing results. The fan promotes air flow, evenly distributing the heated air generated by the heater over the clothes, accelerating the drying process. The door lock ensures the door remains closed while the machine is running, improving safety and efficiency.

[0068] Compared with strong current loads, weak current loads require lower voltage and current. Weak current loads may include:

[0069] Microphones receive sound signals, such as user voice commands or ambient noise. Speakers convert electrical signals into sound signals for playback, notification sounds, or voice feedback. Sensors sense changes in the environment or device status, such as temperature, humidity, pressure, and location.

[0070] The following example illustrates the load of the first control unit in drying mode: It activates the motor to drive the drum, while simultaneously activating the heater and fan to generate and distribute hot air. Furthermore, the first control unit uses sensors to monitor the operating status of the equipment, such as temperature and humidity, and adjusts the control strategy as needed to ensure safe and efficient operation.

[0071] Among them, the second control unit can be a control unit responsible for display and interactive components, which is mainly responsible for managing the user interface of the electrical equipment, ensuring that the user can clearly see the equipment status, operation options and feedback information, and effectively communicate with the equipment through various interactive methods (such as touch, buttons, etc.).

[0072] The second control unit (display and interaction component control unit) receives data from the first control unit or other data sources and converts it into visual information for display on the display. It also manages display parameters such as brightness, contrast, and resolution to provide optimal visual effects. It supports multiple display modes, such as text, graphics, and video, to meet diverse display needs.

[0073] The second control unit can also identify and process signals from user input devices, such as touch operations on a touch screen, pressing physical buttons, etc. The second control unit provides an intuitive display of device status and operation options, providing a way for users to interact with the device.

[0074] For example, a second control unit in a washing machine could be responsible for the following tasks: Displaying information such as the wash program selection, remaining time, water temperature, and detergent on the display screen. Receive the wash program and settings selected by the user via the touchscreen or physical buttons. Provide visual feedback during the wash cycle, such as progress bars and animations, to keep the user informed of the current status. After the wash cycle is complete, emit a sound notification and display a completion message on the display screen.

[0075] Optionally, in the off state, if the button control circuit detects that the power button is pressed, it can control the first switch and the second switch to be turned on. Otherwise, the first switch and the second switch remain turned off.

[0076] It should be noted that when the electrical appliance is in the off state, all the functional modules except the key control circuit are in a power-off state to reduce power consumption. If the key control circuit detects that the power key is pressed, it can control the first switch and the second switch to be turned on, so that the first control unit and the second control unit are both in a powered state, and each functional module can work normally.

[0077] Optionally, after controlling the first switch and the second switch to be turned on, if the key control circuit detects that the key corresponding to the first working instruction is pressed, it can run the working program corresponding to the first working instruction based on the first control unit and the second control unit.

[0078] It should be noted that when the electrical appliance is in the standby or working state, if the key control circuit detects that the key corresponding to the first working instruction is pressed (such as selecting a specific washing program or drying mode), it can send an instruction to the first control unit and the second control unit. Based on the received instruction, the first control unit (including a specific MCU that controls the drying module) and the second control unit will work together to run the corresponding working program. For example, the main control unit may be responsible for controlling the motor, heater, fan and other high-voltage loads, while the second control unit is responsible for updating the information on the display screen and processing user interaction.

[0079] Among them, the first working instruction is used to instruct the electrical appliance to perform a specific working program, and through the cooperative work of the first control unit and the second control unit, the load is in a working state.

[0080] It can be understood that if the electrical appliance is in the standby state, the key control circuit detects the first working instruction, and can enter the working state. The first microcontroller MCU can control the first control circuit to work. The second microcontroller MCU can control the second control circuit to work.

[0081] Optionally, in the standby state, the key control circuit can control the first switch and the second switch to be turned off in response to reaching a preset time length, entering an off state, otherwise, maintaining the standby state, maintaining the first switch and the second switch to be turned on.

[0082] It should be noted that after the device completes a working instruction, if there is no new instruction input and the preset automatic shutdown time is not reached, the device will enter the standby state. In the standby state, although most of the functional modules may be in a low-power mode, the first switch and the second switch still remain turned on in order to quickly respond to new instructions. If the device reaches a preset time length (such as 20 minutes or 30 minutes) in the standby state, the key control circuit will control the first switch and the second switch to be turned off, thereby cutting off the power supply to the second control circuit, the second controller and the first control unit, and making the device enter a real off state.

[0083] Optionally, the first microcontroller MCU includes multiple first microcontrollers, at least one of which is used to control the drying module.

[0084] It should be noted that the drying module can be controlled by at least one dedicated first microcontroller MCU. This dedicated MCU is responsible for receiving instructions from the second control unit and accurately controlling the motor, heater, fan and other components during the drying process to achieve efficient and safe drying effects.

[0085] The technical solution provided by the embodiments of the present invention brings at least the following beneficial effects:

[0086] The control device for an electrical appliance includes: a first control unit and a second control unit. The first control unit includes a first microcontroller (MCU), a first control circuit, and a power supply. The second control unit includes a second microcontroller (MCU), a second control circuit, and a key control circuit. The power supply is connected to the key control circuit to continuously provide the key control circuit with a first electrical energy. The power supply, the first microcontroller (MCU), and the first control circuit are connected via a first switch; the power supply, the second microcontroller (MCU), and the second control circuit are connected via a second switch; the key control circuit controls the on / off of the first switch; and the key control circuit controls the on / off of the second switch. This device can control the on / off of the first and second switches via the key control circuit. If the electrical appliance has multiple MCUs, it can also reduce the overall standby power consumption of the electrical product to meet product market compliance requirements.

[0087] Figure 2 This is a schematic diagram of the structure of a control device for an electrical appliance proposed in an embodiment of the present invention. Figure 2 As shown, the device includes:

[0088] The first control unit and the second control unit include a first microcontroller MCU, a first control circuit and a power supply, and the second control unit includes a second microcontroller MCU, a second control circuit and a key control circuit.

[0089] The power supply is connected to the key control circuit to continuously provide the first electrical energy to the key control circuit. The power supply and the first microcontroller MCU and the first control circuit are connected through a first switch; the power supply and the second microcontroller MCU and the second control circuit are connected through a second switch; the key control circuit controls the on and off of the first switch; and the key control circuit controls the on and off of the second switch.

[0090] The first switch includes a first common terminal and a first contact; the second switch includes a second common terminal and a second contact;

[0091] The power supply, the first microcontroller MCU, and the first control circuit are connected via a first switch, including:

[0092] The first common terminal of the first switch is connected to the power supply, and the first contact of the first switch is connected to the first microcontroller MCU and the first control circuit;

[0093] The power supply, the second microcontroller MCU, and the second control circuit are connected via a second switch, including:

[0094] The second common end of the second switch is connected to the key control circuit, and the second contact of the second switch is connected to the second microcontroller MCU and the second control circuit.

[0095] like Figure 2 As shown, W1 is the first common terminal of the first switch, and W2 is the first contact of the first switch. P1 is the second common terminal of the second switch, and P2 is the second contact of the second switch. When W1 and W2 are in contact, the power supply can provide the second power VCC2 to the first microcontroller MCU and the first control circuit through the first switch.

[0096] The first switch control circuit includes a first diode, a first resistor and inductor RL circuit, and a first transistor.

[0097] One side of the first RL circuit is connected to the anode of the first diode, the other side of the first RL circuit is connected to the cathode of the first diode, and the cathode of the first diode is connected to the first voltage source;

[0098] The anode of the first diode is connected to the collector of the first transistor, the emitter of the first transistor is grounded, and the base of the first transistor is connected to the first output signal of the key control circuit.

[0099] like Figure 2 As shown, M5 represents the anode of the first diode, M1 represents the cathode of the first diode, M3 represents the emitter of the first transistor, M4 represents the collector of the first transistor, M5 represents the base of the first transistor, which can receive the first output signal, and VCC3 represents the first voltage source.

[0100] Wherein, the second switch control circuit includes a second diode, a second resistor and inductor RL circuit, and a second transistor;

[0101] One side of the second RL circuit is connected to the anode of the second diode, the other side of the second RL circuit is connected to the cathode of the second diode, and the cathode of the second diode is connected to the second voltage source;

[0102] The anode of the second diode is connected to the collector of the second triode, the emitter of the second triode is grounded, and the base of the second triode is connected to the second output signal of the key control circuit.

[0103] like Figure 2As shown, N1 represents the anode of the second diode, N2 represents the cathode of the second diode, N5 represents the emitter of the second transistor, N4 represents the collector of the second transistor, N3 represents the base of the second transistor, which can receive the second output signal, and VCC4 represents the second voltage source.

[0104] It should be noted that Figure 2 The specific content of the embodiment can refer to the above embodiment, and the control of the switch by the key control circuit will be described in detail below.

[0105] Optionally, in response to the first output signal of the key control circuit being a conduction signal, the first common terminal and the first contact are controlled to be in contact, so that the first switch is turned on.

[0106] Specifically, the first output signal can control the first switch to be turned on or off. If the first output signal is an on signal, the first common terminal and the first contact can be controlled to be in contact, thereby turning on the first switch.

[0107] Optionally, in response to the second output signal of the key control circuit being a conduction signal, the second common terminal and the second contact are controlled to contact each other, so that the second switch is turned on.

[0108] Specifically, the second output signal can control the second switch to be turned on or off. If the second output signal is an on signal, the second common terminal and the second contact point can be controlled to contact each other, thereby turning on the second switch.

[0109] Furthermore, in response to the first output signal of the key control circuit being a conduction signal, the first common terminal and the first contact point may be controlled by the first switch control circuit to be in contact with each other, so that the first switch is turned on.

[0110] The working principle of the first switch control circuit will be described below.

[0111] It should be noted that the operation of the first switch control circuit mainly depends on the interaction of the first diode, the first resistor-inductor (RL) circuit, and the first transistor, combined with the external conduction signal and the first voltage source to achieve control of the first switch.

[0112] Among them, the first diode serves as a unidirectional conductive element, its anode is connected to one side of the first RL circuit, and its cathode is connected to the first voltage source, which ensures that current can only flow from the first voltage source to the first RL circuit, preventing reverse current from damaging the circuit.

[0113] Among them, the first RL circuit is composed of a resistance element and an inductance element, which is used to limit the rate of change of current and prevent sudden current changes from impacting the circuit. Its two sides are respectively connected to the anode and cathode of the first diode to form a current path.

[0114] The first transistor serves as a switch element, wherein the collector is connected to the anode of the first diode, the emitter is grounded, and the base receives the first output signal. The state of the first switch is controlled by the first output signal received by the base.

[0115] It should be noted that when the base of the first transistor receives a turn-on signal, the turn-on signal passes through the base, turning the first transistor on. At this point, a low-resistance path is formed between the collector and emitter of the first transistor. Since the first transistor is turned on, the current in the first RL circuit can flow through the collector of the first transistor to the emitter (i.e., ground). However, due to the presence of the first RL circuit, the rate of change of the current is limited, preventing sudden changes.

[0116] Furthermore, in response to the second output signal of the key control circuit being a conduction signal, the second common terminal and the second contact point may be controlled by the second switch control circuit to be in contact with each other, so that the second switch is turned on.

[0117] The working principle of the second switch control circuit will be described below.

[0118] It should be noted that the operation of the second switch control circuit mainly depends on the interaction of the second diode, the second resistor-inductor (RL) circuit, and the second transistor, combined with the external conduction signal and the second voltage source to achieve control of the second switch.

[0119] Among them, the second diode serves as a unidirectional conductive element, with its anode connected to one side of the second RL circuit and its cathode connected to the second voltage source, which ensures that current can only flow from the second voltage source to the second RL circuit, preventing reverse current from damaging the circuit.

[0120] Among them, the second RL circuit is composed of a resistance element and an inductance element, which is used to limit the rate of change of current and prevent sudden current changes from impacting the circuit. Its two sides are respectively connected to the anode and cathode of the second diode to form a current path.

[0121] The second transistor serves as a switch element, with its collector connected to the anode of the second diode, its emitter grounded, and its base receiving the second output signal. The state of the second switch is controlled by the second output signal received at the base.

[0122] It should be noted that if the base of the second transistor receives a turn-on signal, the turn-on signal passes through the base, turning the second transistor on. This creates a low-resistance path between the collector and emitter of the second transistor. Since the second transistor is turned on, the current in the second RL circuit can flow through the collector of the second transistor to the emitter (i.e., ground). However, the presence of the second RL circuit limits the rate of change of the current, preventing sudden changes.

[0123] It should be noted that a communication circuit may be connected between the first microcontroller MCU and the second microcontroller MCU. Figure 2 COMM shown.

[0124] The communication circuit may employ a communication method such as UART (Universal Asynchronous Receiver / Transmitter), SPI (Serial Peripheral Interface), and I2C (Inter-Integrated Circuit), etc., which are not limited here. The technical solution provided by the embodiments of the present invention brings at least the following beneficial effects:

[0125] The control device for an electrical appliance includes: a first control unit and a second control unit. The first control unit includes a first microcontroller (MCU), a first control circuit, and a power supply. The second control unit includes a second microcontroller (MCU), a second control circuit, and a key control circuit. The power supply is connected to the key control circuit to continuously provide the key control circuit with a first electrical energy. The power supply, the first microcontroller (MCU), and the first control circuit are connected via a first switch; the power supply, the second microcontroller (MCU), and the second control circuit are connected via a second switch; the key control circuit controls the on and off of the first switch; and the key control circuit controls the on and off of the second switch. The device can control the on and off of the first and second switches via the key control circuit, thereby reducing the overall standby power consumption of the electrical appliance to meet product market compliance requirements. The first switch control circuit can accurately control the on-state of the first switch based on a first output signal, and the second switch control circuit can accurately control the on-state of the first switch based on a second output signal.

[0126] An embodiment of the present application further provides a clothing processing device, which includes the control circuit of an electrical appliance according to any of the above technical solutions. Therefore, the clothing processing device has all the beneficial effects of the control circuit of the electrical appliance according to the above technical solutions.

[0127] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" 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 invention. In this specification, the schematic expressions of the above terms may be directed to different embodiments or examples. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, unless they are mutually inconsistent.

[0128] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this utility model, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0129] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and purpose of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A control device for an electrical appliance, characterized in that: include: A first control unit and a second control unit, wherein the first control unit includes a first microcontroller MCU, a first control circuit and a power supply, and the second control unit includes a second microcontroller MCU, a second control circuit and a key control circuit, The power supply is connected to the key control circuit to continuously provide the first power to the key control circuit. The power supply is connected to the first microcontroller MCU and the first control circuit via a first switch. The power supply is connected to the second microcontroller MCU and the second control circuit via a second switch. The key control circuit controls the on and off of the first switch. The button control circuit controls the on and off of the second switch.

2. The control device according to claim 1, characterized in that The key control circuit is used for: In the shutdown state, in response to detecting that the power button is pressed, controlling the first switch and the second switch to be turned on; Otherwise, the first switch and the second switch are kept open.

3. The control device according to claim 2, characterized in that The key control circuit is used for: After the first switch and the second switch are controlled to be turned on, if it is detected that a key corresponding to the first working instruction is pressed, a working program corresponding to the first working instruction is executed based on the first control unit and the second control unit.

4. The control device according to claim 2, characterized in that The key control circuit is used for: In the standby state, in response to reaching a preset time, the first switch and the second switch are controlled to be disconnected, entering the shutdown state; Otherwise, the standby state is maintained, and the first switch and the second switch are kept turned on.

5. The control device according to claim 1, characterized in that The first control unit is a load control unit, the second control unit is a display and interaction component control unit, and the display and interaction component includes a display screen; The button control circuit receives trigger information generated by a user touching the display screen.

6. The control device according to claim 5, characterized in that The electrical appliance further includes a drying module, and the load includes a strong current load and a weak current load. The high-current load includes at least a motor in the drying module for driving the desiccant component to rotate, a heater for heating the desiccant component for regeneration, and a fan for promoting the flow of air heated by the heater. The high-current load also includes a door lock and a heater for heating washing water. The low-current load includes at least one of the following: a microphone, a speaker, and a sensor.

7. The control device according to claim 6, characterized in that The first microcontroller MCU includes multiple first microcontrollers, at least one of which is used to control the drying module.

8. The control device according to claim 1, characterized in that The first switch includes a first common terminal and a first contact; the second switch includes a second common terminal and a second contact; The power supply, the first microcontroller MCU, and the first control circuit are connected via a first switch, including: The first common end of the first switch is connected to the power supply, and the first contact of the first switch is connected to the first microcontroller MCU and the first control circuit; The power supply, the second microcontroller MCU, and the second control circuit are connected via a second switch, including: The second common end of the second switch is connected to the key control circuit, and the second contact of the second switch is connected to the second microcontroller MCU and the second control circuit.

9. The control device according to claim 8, characterized in that The button control circuit controls the on and off of the first switch, including: In response to the first output signal of the key control circuit being a conduction signal, controlling the first common terminal and the first contact to be in contact with each other, so as to turn on the first switch; and / or, The button control circuit controls the on and off of the second switch, including: In response to the second output signal of the key control circuit being a conduction signal, the second common terminal and the second contact are controlled to be in contact with each other, so that the second switch is turned on.

10. The control device according to claim 9, characterized in that: It also includes a first switch control circuit and a second switch control circuit, wherein the first switch control circuit includes a first diode, a first resistor and inductor RL circuit, and a first transistor. One side of a first RL circuit is connected to the anode of the first diode, the other side of the first RL circuit is connected to the cathode of the first diode, and the cathode of the first diode is connected to a first voltage source; The anode of the first diode is connected to the collector of the first transistor, the emitter of the first transistor is grounded, and the base of the first transistor is connected to the first output signal of the key control circuit; In response to the first output signal of the key control circuit being a conduction signal, controlling the first common terminal and the first contact to be in contact with each other so as to turn on the first switch, comprising: In response to the first output signal of the key control circuit being a conduction signal, controlling the first common terminal and the first contact point to contact each other through the first switch control circuit to turn on the first switch; and / or, The second switch control circuit includes a second diode, a second resistor and inductor RL circuit, and a second transistor; One side of the second RL circuit is connected to the anode of the second diode, the other side of the second RL circuit is connected to the cathode of the second diode, and the cathode of the second diode is connected to a second voltage source; The anode of the second diode is connected to the collector of the second transistor, the emitter of the second transistor is grounded, and the base of the second transistor is connected to the second output signal of the key control circuit; In response to the second output signal of the key control circuit being a conduction signal, controlling the second common terminal and the second contact to be in contact with each other so as to turn on the second switch, comprising: In response to the second output signal of the key control circuit being a conduction signal, the second common terminal and the second contact are controlled by the second switch control circuit to be in contact with each other, so that the second switch is turned on.

11. The control device according to claim 7, characterized in that: A communication circuit is connected between the first microcontroller MCU and the second microcontroller MCU.

12. A clothes processing device, characterized in that: The device comprises the control device of the electrical appliance according to any one of claims 1-11.

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