Control system and method, touch detection chip and clothes processing equipment

Abstract

The invention provides a control system and method, a touch detection chip and clothes processing equipment. The control system comprises a main control circuit board, a display circuit board, a first control circuit and a second control circuit. A power supply circuit arranged in the main control circuit board is provided with a first voltage output end and a second voltage output end, and the display circuit board is provided with a touch detection chip. The first control circuit comprises a first connecting end, a second connecting end and a first control end, the first control end is electrically connected with the touch detection chip, the first connecting end is electrically connected with the first voltage output end, and the second connecting end is electrically connected with the first power supply end. The second control circuit comprises a third connecting end, a fourth connecting end and a second control end, the second control end is electrically connected with the touch detection chip, the third connecting end is electrically connected with the second voltage output end and the power supply end of the touch detection chip, and the fourth connecting end is electrically connected with the second power supply end.

Description

Technical Field

[0001] This disclosure pertains to the field of household appliances and relates to a control system and method, a touch detection chip, and a clothing processing device. Background Technology

[0002] Clothing handling equipment such as washing machines or washer-dryer combos are large and difficult to move, so users usually keep the power plugged in at all times for convenience. This places high demands on the standby power consumption of these devices to reduce energy waste. For example, some countries or regions require that the standby power consumption of a washing machine when plugged in but not turned on should not exceed 0.5W, and that for machines with Wi-Fi functionality, the standby power consumption when connected to a network and not turned on should not exceed 2W. Summary of the Invention

[0003] In a first aspect of this disclosure, a control system is provided, comprising: a main control circuit board having a power supply circuit having a first voltage output terminal and a second voltage output terminal; a display circuit board having a touch detection chip; a first control circuit having a first connection terminal, a second connection terminal, and a first control terminal for controlling the connection between the first connection terminal and the second connection terminal, wherein the first control terminal is electrically connected to the touch detection chip, the first connection terminal is electrically connected to the first voltage output terminal, the second connection terminal is electrically connected to a first power supply terminal, and the first power supply terminal is used to supply power to electrical loads in the main control circuit board; and a second control circuit having a third connection terminal, a fourth connection terminal, and a second control terminal for controlling the connection between the third connection terminal and the fourth connection terminal, wherein the second control terminal is electrically connected to the touch detection chip, the third connection terminal is electrically connected to the second voltage output terminal and the power supply terminal of the touch detection chip, the fourth connection terminal is electrically connected to the second power supply terminal, and the second power supply terminal is used to supply power to other electrical loads in the display circuit board besides the touch detection chip.

[0004] In a second aspect of this disclosure, a garment processing device is provided, comprising: a device body and a control system provided in the first aspect of this disclosure, wherein the control system is electrically connected to the device body.

[0005] In a third aspect of this disclosure, a standby low-power control method is provided, applied to the clothing processing device provided in the second aspect of this disclosure. The method includes: after the touch detection chip is powered on, sending a first control signal to the first control terminal to control the connection between the first connection terminal and the second connection terminal, and sending a second control signal to the second control terminal to control the connection between the third connection terminal and the fourth connection terminal; the touch detection chip starts a timer and monitors whether the user triggers a power-on command within a preset time period; if not, sending at least a third control signal to the first control terminal to control the disconnection between the first connection terminal and the second connection terminal.

[0006] In a fourth aspect of this disclosure, a touch detection chip is provided, including a memory, a processor, and a computer program stored on the memory and running on the processor, wherein the computer program, when executed by the processor, implements the steps of the standby low-power control method provided in the third aspect of this disclosure.

[0007] The above description is merely an overview of the technical solution provided in this disclosure. In order to better understand the technical means of this disclosure and to implement it in accordance with the contents of the specification, and to make the above and other features and effects of this disclosure more obvious and understandable, the following are specific examples of the implementation methods of this disclosure. Attached Figure Description

[0008] Figure 1 A schematic diagram of the structure of a garment processing apparatus according to some embodiments of the present disclosure is shown;

[0009] Figure 2 A schematic diagram of the main control circuit board of some embodiments of this disclosure is shown;

[0010] Figure 3 A schematic diagram of the structure of a display circuit board according to some embodiments of the present disclosure is shown;

[0011] Figure 4 A circuit diagram of a first sub-circuit of some embodiments of this disclosure is shown;

[0012] Figure 5 A circuit diagram of a first sub-circuit is shown for some other embodiments of this disclosure;

[0013] Figure 6 A circuit diagram of a second sub-circuit is shown for some embodiments of this disclosure;

[0014] Figure 7 A circuit diagram of a second control circuit according to some embodiments of the present disclosure is shown;

[0015] Figure 8 A flowchart of a standby low-power control method according to some embodiments of the present disclosure is shown. Detailed Implementation

[0016] Taking a washing machine as an example, the washing machine mainly controls the entire machine through an electronic control board, such as the main control circuit board (also known as the "main transformer integrated board") and a display circuit board. In order to achieve low standby power consumption, in some examples, independent power supply circuits are set on the main control circuit board and the display circuit board of the washing machine. The display circuit board controls the main power supply to the main control circuit board. When the power plug is connected to the mains power but the machine is not turned on, the display circuit board cuts off the mains power input to the main control circuit board. This means that the power supply circuit on the main control circuit board and the electrical loads connected to the power supply circuit on the main control circuit board are without power, while the power supply circuit on the display circuit board and the electrical loads connected to the power supply circuit on the display circuit board are powered, thereby achieving the requirement of low standby power consumption.

[0017] However, in practical applications, it has been found that the above solution requires independent power supply circuits for both the display circuit board and the main control circuit board. Furthermore, a relay needs to be installed on the display circuit board to control the mains power supply to the main control circuit board. This results in a large number of components, making manufacturing difficult and leading to higher production costs for the entire machine. Additionally, the after-sales failure rate of the control board is relatively high.

[0018] Therefore, some embodiments of this disclosure provide a garment processing device and a control system applied to the garment processing device. A power supply circuit with two voltage output terminals is provided on the main control circuit board of the control system to supply power to the display circuit board and the electrical loads in the main control circuit board. Furthermore, the control system includes a first control circuit and a second control circuit. A touch detection chip on the display circuit board controls the first control terminal of the first control circuit and the second control terminal of the second control circuit, thereby controlling the power supply to the electrical loads in the main control circuit board and other electrical loads in the display circuit board besides the touch detection chip. This helps reduce standby power consumption to meet the product's low standby power consumption requirements. In addition, since a separate power supply circuit is no longer needed on the display circuit board, compared to adding an additional power supply circuit, the overall production cost is effectively reduced, and the number of electronic components used in the control board is reduced, thereby reducing manufacturing difficulty and the after-sales failure rate of the control board. Furthermore, some embodiments of this disclosure also provide a low standby power consumption control method for garment processing devices, and a touch detection chip for implementing this control method.

[0019] Exemplary embodiments of the present disclosure will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

[0020] It should be noted that the terms "including" or "contains" in this article mean that the element or object preceding the word covers the element or object listed after the word and its equivalents, without excluding other elements or objects. The terms "electrical connection" and "communication connection" described in this article can refer to a direct connection, or a connection via intermediate components or circuits.

[0021] It should also be noted that the transistors mentioned in this article can be switching devices such as bipolar junction transistors (BJTs) or field-effect transistors (FETs), depending on the needs of the actual circuit. This disclosure does not impose any restrictions on this. For example, some transistors can be FETs such as metal-oxide-semiconductor field-effect transistors (MOSFETs), while others can be BJTs. Considering that the source and drain of some types of FETs are symmetrical and interchangeable, for transistors using FETs, one of the first and second terminals is the source, and the other is the drain, with the gate being the control terminal. For transistors using FETs, the first terminal is the collector, the second terminal is the emitter, and the base is the control terminal.

[0022] Figure 1 A schematic diagram of the structure of a garment processing device 1 according to some embodiments of the present disclosure is shown. For example... Figure 1 As shown, the clothing processing device 1 provided in some embodiments of this disclosure may include: a device body 20 and a control system 10, wherein the control system 10 is electrically connected to the device body 20. For example, the clothing processing device 1 may be a washing machine, a dryer, or a washer-dryer combo. This article mainly uses a washing machine as an example for description. Taking a washing machine as an example, the device body 20 may include, but is not limited to: a housing, a touch screen, a washing tub disposed within the housing for accommodating clothes, and a main motor for driving the washing tub to rotate. The control system 10 may be disposed within the housing, and various electrical control devices in the device body 20, such as the touch screen, the main motor, the water inlet valve, the drain pump, the door lock, and the heater, are electrically connected to control the operation of the entire machine.

[0023] This disclosure provides a control system 10, applied to the aforementioned clothing processing equipment 1, such as a washing machine or washer-dryer combo. The control system 10 includes: a main control circuit board 11 (i.e., a main transformer integrated board), a display circuit board 12, a first control circuit 121, and a second control circuit 122. Signal transmission between the main control circuit board 11 and the display circuit board 12 can be achieved via a connecting line.

[0024] Taking washing machines as an example, Figure 2 A schematic diagram of the main control circuit board 11 according to some embodiments of this disclosure is shown. For example... Figure 2 As shown, a power supply circuit 110 is provided on the main control circuit board 11. The input terminal of the power supply circuit 110 is connected to the mains power, and it has a first voltage output terminal U1 and a second voltage output terminal U2, which are used to supply power to the electrical loads in the main control circuit board 11 and the display circuit board 12, respectively. The voltage output by the first voltage output terminal U1 and the voltage output by the second voltage output terminal U2 are determined according to the actual needs of the product, and this disclosure does not impose any restrictions on them. For example, in some application scenarios, the voltage output by the first voltage output terminal U1 can be 18V, and the voltage output by the second voltage output terminal U2 can be 24V, 12V, 5V, or 3.3V, etc.

[0025] In some embodiments, the power supply circuit 110 includes a switching power supply circuit, in which a high-frequency transformer 111 is disposed. The input winding of the high-frequency transformer 111 is electrically connected to the switching power supply chip and peripheral circuits 112. For example, the input winding of the high-frequency transformer 111 may include a primary winding R. IN1 and auxiliary winding R IN2 The high-frequency transformer 111 has two output windings, namely the first output winding R. OUT1 Second output winding R OUT2 First output winding R OUT1 The output node is electrically connected to the first voltage output terminal U1, supplying power to the main control circuit board 11. The second output winding R... OUT2 The output node is electrically connected to the second voltage output terminal U2 to supply power to the display circuit board 12.

[0026] like Figure 2 As shown, the power supply circuit 110 may also include a rectifier and filter circuit. After the power plug 201 of the washing machine is inserted into the socket, the mains power is filtered by the filter 202 and then transmitted to the rectifier and filter circuit 113, and then to the switching power supply chip and peripheral circuit 112.

[0027] In some implementations, the first output winding R OUT1 A rectifier and filter circuit can be set between the output node and the first voltage output terminal U1 according to the load requirements, so that the first voltage output terminal U1 can provide a stable and reliable DC power; similarly, the second output winding R OUT2 A rectifier and filter circuit can also be set between the output node and the second voltage output terminal U2 according to the load requirements, so that the second voltage output terminal U2 can provide a more stable and reliable DC power.

[0028] Figure 3 A schematic diagram of the structure of a display circuit board 12 according to some embodiments of this disclosure is shown. For example... Figure 3As shown, a touch detection chip 170 is disposed on the display circuit board 12. This chip serves two purposes: firstly, to detect touch input, and secondly, to control the switching states of the first control circuit 121 and the second control circuit 122. In some embodiments, the touch detection chip 170 may be a microcontroller unit (MCU). Of course, in other embodiments, the touch detection chip 170 may also be other suitable chips with data processing capabilities; please refer to relevant technologies for details.

[0029] The first control circuit 121 is used to control the power supply to and from the electrical loads in the main control circuit board 11. For example... Figure 2 As shown, the first control circuit 121 may include a first connection terminal a1, a second connection terminal b1, and a first control terminal c1 for controlling the connection between the first connection terminal a1 and the second connection terminal b1. The first control terminal c1 is electrically connected to the touch detection chip 170, the first connection terminal a1 is electrically connected to the first voltage output terminal U1, and the second connection terminal b1 is electrically connected to the first power supply terminal VCC1. The first power supply terminal VCC1 is used to supply power to the electrical load in the main control circuit board 11. In use, the touch detection chip can send a control signal to the first control terminal c1 to control the connection between the first connection terminal a1 and the second connection terminal b1, thereby controlling the power supply to the electrical load connected to the first power supply terminal VCC1.

[0030] The second control circuit 122 is used to control the power supply to and from other electrical loads on the display circuit board 12, excluding the touch detection chip 170. For example... Figure 3 As shown, the second control circuit 122 may include a third connection terminal a2, a fourth connection terminal b2, and a second control terminal c2 for controlling the on / off connection between the third connection terminal a2 and the fourth connection terminal b2. The second control terminal c2 is electrically connected to the touch detection chip 170, the third connection terminal a2 is electrically connected to the second voltage output terminal U2 and the power supply terminal of the touch detection chip 170, and the fourth connection terminal b2 is electrically connected to the second power supply terminal VCC2. The second power supply terminal VCC2 is used to supply power to other electrical loads in the display circuit board 12 besides the touch detection chip 170. In use, the touch detection chip can send a control signal to the second control terminal c2 to control the on / off connection between the third connection terminal a2 and the fourth connection terminal b2, thereby controlling the power supply to the electrical loads connected to the second power supply terminal VCC2.

[0031] It should be noted that, Figure 2 and Figure 3The first control circuit 121 and the second control circuit 122 are illustrated using switches SW1 and SW2 respectively for ease of understanding, but this is not intended to limit the circuit structure of the first control circuit 121 and the second control circuit 122. In actual implementation, the circuit structure of the first control circuit 121 and the second control circuit 122 can be set according to the needs of the product, as long as they can control the power supply of the first power supply terminal VCC1 and the second power supply terminal VCC2 based on the control signals sent by the touch detection chip 170. This disclosure does not impose any restrictions on this.

[0032] When the aforementioned control system 10 is applied to a washing machine, in some embodiments, the electrical loads in the main control circuit board 11 may include, but are not limited to, at least one of the main control chip 130 and the tub motor drive chip 150, wherein the tub motor drive chip 150 is used to drive the main motor 203 of the washing machine to rotate the washing tub. In some embodiments, other electrical loads in the display circuit board 12 may include, but are not limited to, at least one of the display control chip 180, the communication module 183, the display drive circuit 181, and the temperature acquisition circuit 182. The display control chip 180 is electrically connected to the display drive circuit 181 to control the display on the touch screen. The communication module 183 is used to access the network, so that after completing the network configuration of the washing machine, the user can control the washing machine through a control panel or user terminal (such as a mobile phone or tablet computer) connected to the network. In some embodiments, the communication module 183 can be a WIFI module. Of course, in other embodiments, the communication module 183 can also be other types of communication modules capable of realizing smart home network configuration, such as a Bluetooth module or a ZigBee module; this disclosure does not limit this.

[0033] When the first control circuit 121 is in the off state, i.e., the first connection terminal a1 is disconnected from the second connection terminal b1, the first power supply terminal VCC1 loses power. Consequently, the electrical loads connected to the first power supply terminal VCC1, such as the main control chip 130 and the barrel motor drive chip 150, also lose power, thus reducing standby power consumption. Similarly, when the second control circuit 122 is in the off state, i.e., the third connection terminal a2 is disconnected from the fourth connection terminal b2, the second power supply terminal VCC2 loses power. Consequently, the electrical loads connected to the second power supply terminal VCC2, such as the display control chip 180, the communication module 183, the display driver circuit 181, and the temperature acquisition circuit 182, also lose power, further reducing standby power consumption.

[0034] Since the power supply terminal of the touch detection chip 170 is connected to the line between the second voltage output terminal U2 and the second control circuit 122, when the second control circuit 122 is in the off state, the touch detection chip 170 of the first control circuit 121 and the second control circuit 122 can still be powered to ensure that it can continue to work. So that when the power button is pressed by the user on the touch screen, the first control circuit 121 and the second control circuit 122 can be turned on to restore the power supply to the main control circuit board 11 and the display circuit board 12 and exit the low power standby mode.

[0035] Compared to setting up a separate power supply circuit 110 for the display circuit board 12, by setting up a power supply circuit 110 with two voltage output terminals on the main control circuit board 11, and by setting up a first control circuit 121 to control the power supply of the first voltage output terminal to the electrical loads in the main control circuit board 11, and setting up a second control circuit 122 to control the power supply of the second voltage output terminal to the electrical loads on the display circuit board 12 other than the touch detection chip 170, it is possible to achieve low standby power consumption, effectively reduce the overall production cost and the number of electronic components used in the control board, thereby helping to reduce manufacturing difficulty and the after-sales failure rate of the control board.

[0036] In some embodiments, the main control circuit board 11 may further include: a first step-down circuit 141 and a second step-down circuit 142. The input terminal of the first step-down circuit 141 is electrically connected to the first power supply terminal VCC1, and the output terminal is electrically connected to the barrel motor drive chip 150. The input terminal of the second step-down circuit 142 is electrically connected to the first power supply terminal VCC1, or to the output terminal of the first step-down circuit 141. The output terminal of the second step-down circuit 142 serves as the third power supply terminal VCC3, and is electrically connected to the power supply terminal of the main control chip 130 to supply power to the main control chip 130.

[0037] It should be noted that the first step-down voltage can be set according to the voltage of the first power supply terminal VCC1 and the operating voltage of the barrel motor drive chip 150, and this disclosure does not limit it. The second step-down voltage can be set according to the input terminal voltage and the operating voltage of the main control chip 130, and this disclosure does not limit it. For example, in some application scenarios, the voltage of the first power supply terminal VCC1 can be 18V, the output voltage of the first step-down voltage can be 15V; the third power supply terminal VCC3 can be 5V or 3.3V. In some embodiments, the display circuit board 12 may further include: a third step-down circuit 143, the input terminal of the third step-down circuit 143 is electrically connected to the second voltage output terminal U2, and the output terminal is electrically connected to the third connection terminal a2 of the second control circuit 122. At the same time, the output terminal of the third step-down circuit 143 can serve as the fourth power supply terminal VCC4, which is electrically connected to the power supply terminal of the touch detection chip 170 to power the touch detection chip 170. The fourth connection terminal b2 of the second control circuit 122 can serve as the second power supply terminal VCC2, supplying power to the display control chip 180, communication module 183, display driver circuit 181, and temperature acquisition circuit 182. When the second control circuit 122 is in the off state, the fourth power supply terminal VCC4 is still energized, while the second power supply terminal VCC2 is de-energized, thereby de-energizing the connected loads such as the display control chip 180, communication module 183, display driver circuit 181, and temperature acquisition circuit 182.

[0038] It should be noted that the third step-down circuit 143 can be set according to the voltage output by the second voltage output terminal U2 and the operating voltage of the touch detection chip 170, and this disclosure does not impose any limitations on it. For example, in some application scenarios, the voltage output by the second voltage output terminal U2 can be 24V or 12V, and the operating voltage of the touch detection chip 170 can be 5V or 3.3V. Of course, in other embodiments, when the voltage output by the second voltage output terminal U2 is adapted to the operating voltage of the touch detection chip 170, the above-mentioned third step-down circuit 143 may not be necessary. The specific setting can be determined according to the actual product requirements, and this disclosure does not impose any limitations on it.

[0039] In some embodiments, the main control circuit board 11 may also be provided with a first communication circuit 161, and the display circuit board 12 may further include a second communication circuit 162, a third communication circuit 163, and a fourth communication circuit 164. For example... Figure 2 and Figure 3As shown, the main control chip 130 can be electrically connected to the display control chip 180 through the first communication circuit 161 and the second communication circuit 162. The display control chip 180 can be electrically connected to the touch detection chip 170 through the third communication circuit 163, and to the communication module 183 through the fourth communication circuit 164. It should be noted that the circuit structures of the above-mentioned display driving circuit 181, temperature acquisition circuit 182, first communication circuit 161, second communication circuit 162, third communication circuit 163, and fourth communication circuit 164 can be found in related technologies and will not be described in detail here.

[0040] In some embodiments, the main control circuit board 11 may also be provided with a first driving circuit 151, a second driving circuit 152, a third driving circuit 153, and a fourth driving circuit 154, and the main control chip 130 is electrically connected to the first driving circuit 151, the second driving circuit 152, the third driving circuit 153, and the fourth driving circuit 154 respectively, such as... Figure 2 As shown. The first drive circuit 151 drives the water inlet valve 204 of the washing machine, the second drive circuit 152 drives the drain pump 205 of the washing machine, the third drive circuit 153 drives the door lock 206 of the washing machine, and the fourth drive circuit 154 drives the heater 207 of the washing machine. It should be noted that the circuit structures of the first drive circuit 151, the second drive circuit 152, the third drive circuit 153, and the fourth drive circuit 154 can be found in related technologies and will not be detailed here.

[0041] In some embodiments, the first control circuit 121 and the second control circuit 122 described above can be implemented using controllable switching devices such as transistors, thyristors, and relays. In some embodiments, considering that the first control circuit 121 needs to be connected to the circuitry in the main control circuit board 11 to control the power supply to the electrical load in the main control circuit board 11, and also needs to be controlled by the touch detection chip 170 in the display circuit board 12, the first control circuit 121 can be partially disposed on the main control circuit board 11 and partially disposed on the display circuit board 12.

[0042] In some embodiments, the first control circuit 121 may include a first sub-circuit 1201 and a second sub-circuit 1202. The first sub-circuit 1201 is disposed on the main control circuit board 11, and the second sub-circuit 1202 is disposed on the display circuit board 12. The first sub-circuit 1201 includes a first adapter terminal SW_A1 and the aforementioned first connection terminal a1 and second connection terminal b1. The second sub-circuit 1202 includes a second adapter terminal SW_A2 and a first control terminal c1. The first adapter terminal SW_A1 and the second adapter terminal SW_A2 can be electrically connected through an adapter interface and an adapter line.

[0043] Figure 4A circuit diagram of a first sub-circuit 1201 according to some embodiments of this disclosure is shown. For example... Figure 4 As shown, in some embodiments, the first sub-circuit 1201 may include: a first transistor Q1 and a second transistor Q2. The first terminal of the first transistor Q1 is electrically connected to a first connection terminal a1, i.e., electrically connected to a first voltage output terminal U1. The second terminal of the first transistor Q1 is electrically connected to a second connection terminal b1, i.e., electrically connected to a first power supply terminal VCC1. The second terminal of the first transistor Q1 is also electrically connected to a first ground terminal GND1 through a first capacitor C1. The first terminal of the second transistor Q2 is electrically connected to the control terminal of the first transistor Q1, and the second terminal is electrically connected to a second ground terminal GND2. The control terminal is electrically connected to a first switching terminal SW_A1. The first switching terminal SW_A1 can receive a signal from a second switching terminal SW_A2, which can control the conduction and cutoff of the second transistor Q2, thereby controlling the conduction and cutoff of the first transistor Q1. Figure 4 As shown, the first transistor Q1 can be, for example, a field-effect transistor, and the second transistor Q2 can be, for example, an NPN transistor.

[0044] It should be noted that the first grounding terminal GND1 and the second grounding terminal GND2 mentioned above can be connected to the same ground (i.e., common ground), or they can be connected to different grounds, depending on the actual product requirements. This disclosure does not impose any restrictions on this.

[0045] like Figure 4 As shown, the first ground terminal GND1 and the second ground terminal GND2 are connected to the same ground. For example, both the first ground terminal GND1 and the second ground terminal GND2 are connected to analog ground, i.e., non-isolated ground; or both the first ground terminal GND1 and the second ground terminal GND2 are connected to digital ground, i.e., isolated ground. In some embodiments, the first sub-circuit 1201 may further include: a first resistor R1, a second resistor R2, a third resistor R3, a second capacitor C2, and a third capacitor C3. The first capacitor C1 may be a polarized capacitor, and the second capacitor C2 and the third capacitor C3 may be non-polarized capacitors. The first end of the first resistor R1 is electrically connected to the first connection terminal a1, the second end of the first resistor R1 and the positive terminal of the first capacitor C1 are electrically connected to the second connection terminal b1, and the negative terminal of the first capacitor C1 is electrically connected to the first reference ground. The first end of the second resistor R2 is electrically connected to the first electrode of the second transistor Q2, and the second end is electrically connected to the control electrode of the first transistor Q1. The first end of the third resistor R3 is electrically connected to the first electrode of the first transistor Q1, and the second end is electrically connected to the control electrode of the first transistor Q1. The second capacitor C2 and the third capacitor C3 are connected in parallel. The first end of both is electrically connected to the control electrode of the second transistor Q2, and the second end of both is electrically connected to the second ground terminal GND2.

[0046] Figure 5A circuit diagram of a first sub-circuit 1201 according to other embodiments of this disclosure is shown. For example... Figure 5 As shown, the first ground terminal GND1 and the second ground terminal GND2 are connected to different grounds. For example, the first ground terminal GND1 is connected to analog ground, and the second ground terminal GND2 is connected to digital ground. In this case, to achieve isolation between the two grounds, the first sub-circuit 1201 may further include an isolator and a third transistor Q3. The first terminal of the second transistor Q2 is electrically connected to the control terminal of the third transistor Q3 through the isolator, the first terminal of the third transistor Q3 is electrically connected to the control terminal of the first transistor Q1, and the second terminal of the third transistor Q3 is electrically connected to the first ground terminal GND1. Figure 5 As shown, the isolator can be, for example, an optocoupler U6, and the third transistor Q3 can be, for example, an NPN transistor. Of course, other suitable isolators besides the optocoupler U6 can also be used, and this disclosure does not limit them.

[0047] like Figure 5 As shown, the optocoupler U6 may include a first input terminal, a second input terminal, a first output terminal, and a second output terminal. The first input terminal is connected to a first reference voltage Vref1, the second input terminal is electrically connected to the first electrode of the second transistor Q2, the first output terminal is electrically connected to the first connection terminal a1, and the second output terminal is electrically connected to the control electrode of the third transistor Q3. In some embodiments, the light source of the optocoupler U6 can be a light-emitting diode (LED), and the light receiver can be a phototransistor. When the first input terminal and the second input terminal are connected, the LED emits light, thereby making the phototransistor conduct, i.e., the first output terminal and the second output terminal are connected. The magnitude of the first reference voltage Vref1 can be set according to the needs of the actual circuit, for example, it can be 5V. In some embodiments, the voltage output from the second voltage output terminal U2 can be input to a voltage conversion chip, and the voltage conversion chip outputs the first reference voltage Vref1 to the first input terminal of the optocoupler U6.

[0048] like Figure 5 As shown, the first sub-circuit 1201 may further include a fourth resistor R4 and a fifth resistor R5. The first input terminal of the optocoupler U6 is electrically connected to the first terminal of the fourth resistor R4, and the second terminal of the fourth resistor R4 is connected to the first reference voltage Vref1. The second output terminal of the optocoupler U6 is electrically connected to the first terminal of the fifth resistor R5, and the second terminal of the fifth resistor R5 is electrically connected to the control electrode of the third transistor Q3.

[0049] Figure 6 A circuit diagram of a second sub-circuit 1202 according to some embodiments of this disclosure is shown. Figure 6As shown, the second sub-circuit 1202 may include a fourth transistor Q4. The first terminal of the fourth transistor Q4 is electrically connected to the second junction terminal SW_A2, the second terminal is connected to the second reference voltage Vref2, and the control terminal is electrically connected to the first control terminal c1. The fourth transistor Q4 may be, for example, a PNP transistor. It should be noted that the second reference voltage Vref2 may be the same as or different from the first reference voltage Vref1, depending on the needs of the actual circuit. For example, in some applications, the second reference voltage Vref2 may be the same as the first reference voltage Vref1, both being 5V. The first control terminal c1 is electrically connected to the touch detection chip 170 and receives control signals from the touch detection chip 170 to control the connection and disconnection between the first connection terminal a1 and the second connection terminal b1 according to the received control signals. For example, the first control terminal c1 may be electrically connected to the INT1 pin of the touch detection chip 170.

[0050] like Figure 6 As shown, in some embodiments, the second sub-circuit 1202 may further include: a sixth resistor R6, the first end of which is electrically connected to the first electrode of the fourth transistor Q4, and the second end of which is electrically connected to the second junction terminal SW_A2.

[0051] In some implementations, the second control circuit 122 may be disposed on the display circuit board 12. Figure 7 A circuit diagram of a second control circuit 122 according to some embodiments of this disclosure is shown. Figure 7 As shown, the second control circuit 122 may include a fifth transistor Q5 and a sixth transistor Q6. The first terminal of the fifth transistor Q5 is electrically connected to the third connection terminal a2, and the second terminal is electrically connected to the fourth connection terminal b2. The first terminal of the sixth transistor Q6 is electrically connected to the control terminal of the fifth transistor Q5, the second terminal is electrically connected to the second ground terminal GND2, and the control terminal is electrically connected to the second control terminal c2. The second control terminal c2 and the first control terminal c1 are respectively connected to different pins of the touch detection chip 170, receiving control signals from the touch detection chip 170 to control the on / off state between the third connection terminal a2 and the fourth connection terminal b2 according to the received control signals. For example, the second control terminal c2 can be electrically connected to the INT0 pin of the touch detection chip 170.

[0052] like Figure 7As shown, the fifth transistor Q5 can be, for example, a field-effect transistor, and the sixth transistor Q6 can be, for example, an NPN transistor. In some embodiments, the second control circuit 122 may further include: a seventh resistor R7, an eighth resistor R8, a ninth resistor R9, a tenth resistor R10, and a fourth capacitor C4. The first terminal of the seventh resistor R7 is electrically connected to the first electrode of the sixth transistor Q6, and the second terminal is electrically connected to the control electrode of the fifth transistor Q5. The eighth resistor R8 and the fourth capacitor C4 are connected in parallel, with their first terminals electrically connected to the control electrode of the fifth transistor Q5 and their second terminals electrically connected to the third connection terminal a2. The first terminal of the ninth resistor R9 is electrically connected to the second control terminal c2, and the second terminals of the ninth resistor R9 and the first terminal of the tenth resistor R10 are electrically connected to the control electrode of the sixth transistor Q6. The second terminal of the tenth resistor R10 is electrically connected to the second ground terminal GND2.

[0053] This disclosure provides a standby low-power control method in some embodiments, applied to the aforementioned clothing handling device 1, such as a washing machine or washer-dryer combo. In some embodiments, the standby low-power control method can be executed by a touch detection chip 170 in the control system 10 of the clothing handling device 1.

[0054] Figure 8 A flowchart illustrating a standby low-power control method according to some embodiments of this disclosure is shown. For example... Figure 8 As shown, the standby low power control method may include at least the following steps S110 and S120.

[0055] In step S110, after the touch detection chip is powered on, it sends a first control signal to the first control terminal of the first control circuit to control the conduction between the first connection terminal and the second connection terminal of the first control circuit, and sends a second control signal to the second control terminal of the second control circuit to control the conduction between the third connection terminal and the fourth connection terminal of the second control circuit.

[0056] In step S120, the touch detection chip starts timing and monitors whether the user triggers the power-on command within the preset timing duration. If not, at least a third control signal is sent to the first control terminal to control the first connection terminal to disconnect from the second connection terminal.

[0057] Taking a washing machine as an example, the power plug 201 of the washing machine is inserted into the socket, and the whole machine is powered on. The power circuit 110 on the main control circuit board 11 starts to work, and the first voltage output terminal and the second voltage output terminal output voltage respectively to power the main control circuit board 11 and the display circuit board 12. After the touch detection chip 170 is powered on, the above step S110 can be executed, so that the first control circuit 121 and the second control circuit 122 are both in the conducting state, and step S120 is executed.

[0058] It should be noted that the first control signal and the second control signal in step S110 can be output from different pins of the touch detection chip 170. The actions of sending the first control signal to the first control terminal c1 of the first control circuit 121 and sending the second control signal to the second control terminal c2 of the second control circuit 122 can be performed simultaneously or sequentially, depending on the actual product requirements. This disclosure does not impose any restrictions on this. Furthermore, the action of starting the timing in step S120 and the actions of sending the first control signal and sending the second control signal in step S110 can be performed simultaneously or sequentially. Figure 8 The order in which the processes are executed can be set according to the actual needs of the product, and this disclosure does not impose any restrictions on this.

[0059] In some implementations, a timer can be pre-configured and started using a countdown method. The timing duration can be set according to the needs of the actual application scenario, for example, it can be set to 30 seconds to 180 seconds, such as 30 seconds, 60 seconds, 120 seconds or 180 seconds, etc., and this disclosure does not limit it.

[0060] If the touch detection chip 170 does not detect a user triggering a power-on command within the aforementioned timing period, it indicates that the user has not performed a power-on action, such as pressing the power button, within the aforementioned timing period. This means that the user will not be using the washing machine for the time being, and the washing machine can be controlled to enter a low-power standby mode. Of course, if the touch detection chip 170 detects a user triggering a power-on command within the aforementioned timing period, it indicates that the user is about to use the washing machine. The first connection terminal a1 and the second connection terminal b1 of the first control circuit 121, as well as the third connection terminal a2 and the fourth connection terminal b2 of the second control circuit 122, all need to remain in a conducting state to continuously supply power to the electrical loads in the main control circuit board 11 and the display circuit board 12.

[0061] In step S120 above, the touch detection chip 170 sends a third control signal to the first control terminal c1, controlling the first connection terminal a1 to disconnect from the second connection terminal b1. This causes the electrical loads in the main control circuit board 11 to lose power, effectively reducing the standby power consumption of the washing machine and allowing it to enter a low-power standby mode. In some embodiments, if no user-triggered power-on command is detected within the aforementioned timing period, in addition to sending a third control signal to the first control terminal c1 of the first control circuit 121 to disconnect the first connection terminal a1 from the second connection terminal b1, the touch detection chip 170 can also send a fourth control signal to the second control terminal c2 of the second control circuit 122 to disconnect the third connection terminal a2 from the fourth connection terminal b2. This causes the electrical loads in the display circuit board 12 other than the touch detection chip 170 to lose power, further reducing standby power consumption.

[0062] In some embodiments, the display circuit board 12 of the washing machine is also provided with a display control chip 180 and a communication module 183 for network access, such as a WIFI module, enabling the washing machine to have smart home network configuration capabilities. The communication module 183 is communicatively connected to the display control chip 180, and the display control chip 180 is communicatively connected to the touch detection chip 170.

[0063] Based on this, the aforementioned standby low-power control method may further include: the touch detection chip 170 receiving status information sent by the display control chip 180, and determining the network configuration status of the communication module 183 based on the received status information. It should be noted that this network configuration status determination step can be performed before step S120, for example, after the touch detection chip 170 and the display control chip 180 are powered on; or, it can be performed substantially simultaneously with the action of the touch detection chip 170 starting the timing in step S120. This disclosure does not impose any restrictions on this, as long as the network configuration status of the communication module 183 can be determined before the timing ends.

[0064] Accordingly, sending at least a third control signal to the first control terminal c1 in step S120 above may include: if network distribution is not completed, sending a third control signal to the first control terminal c1 to control the first connection terminal a1 of the first control circuit 121 to disconnect from the second connection terminal b1, and sending a fourth control signal to the second control terminal c2 to control the third connection terminal a2 of the second control circuit 122 to disconnect from the fourth connection terminal b2, so that the washing machine enters a first low-power standby mode; if network distribution is completed, sending a third control signal to the first control terminal c1 to control the first connection terminal a1 to disconnect from the second connection terminal b1, so that the washing machine enters a second low-power standby mode.

[0065] If the user has not completed network configuration, the communication module 183 can remain inactive, controlling the power loads in the main control circuit board 11 and the display circuit board 12 (excluding the touch detection chip 170) to de-energize, thereby further reducing standby power consumption. If the user has completed network configuration, the communication module 183 needs to remain operational so that the washing machine can respond to commands sent by the user through the control panel or user terminal. It can control the power loads in the main control circuit board 11 to de-energize while keeping the power loads on the display circuit board 12 energized, ensuring the normal operation of the communication module 183.

[0066] This allows the washing machine to flexibly switch between the first and second low-power standby modes based on its network status when it is connected to mains power and not turned on by the user. This helps to minimize the standby power consumption of the washing machine without affecting the user experience.

[0067] Understandably, after executing step S120, for example, by disconnecting the first connection terminal a1 from the second connection terminal b1, or by disconnecting both the first connection terminal a1 from the second connection terminal b1 and the third connection terminal a2 from the fourth connection terminal b2, the touch detection chip 170 will continuously monitor whether the user triggers a power-on command. Furthermore, in response to the user-triggered power-on command, it will connect the first connection terminal a1 to the second connection terminal b1, or connect both the first connection terminal a1 to the second connection terminal b1, and the third connection terminal a2 to the fourth connection terminal b2, thereby restoring power supply to the electrical loads in the main control circuit board 11 and the display circuit board 12 for user convenience.

[0068] In addition, some embodiments of this disclosure also provide a touch detection chip. The touch detection chip includes a memory, a processor, and a computer program stored in the memory and running on the processor. When executed by the processor, the computer program implements the steps of the standby low-power control method provided in the above-described method embodiments. The implementation process of this standby low-power control method can refer to the above-described method embodiments, and will not be repeated here. For example, the touch detection chip can be an MCU or other chip with data processing capabilities.

[0069] This disclosure provides a computer program product that, when executed by a processor, implements the steps of the above-described standby low-power control method and achieves the same technical effect. To avoid repetition, it will not be described again here.

[0070] This disclosure provides some embodiments of a computer-readable storage medium on which a computer program is stored. When the computer program is executed by a processor, it implements the steps of the standby low-power control method described above and achieves the same technical effect. To avoid repetition, it will not be described again here. For example, the computer-readable storage medium may be a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, etc.

[0071] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of this disclosure is limited to these examples; within the framework of this disclosure, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of different aspects of one or more embodiments of this disclosure as described above, which are not provided in detail for the sake of brevity.

[0072] Although exemplary embodiments of this disclosure have been described, those skilled in the art, upon learning the basic inventive concept, can make further changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the exemplary embodiments as well as all changes and modifications falling within the scope of this disclosure.

[0073] In a first aspect of this disclosure, a control system is provided, comprising: a main control circuit board having a power supply circuit having a first voltage output terminal and a second voltage output terminal; a display circuit board having a touch detection chip; a first control circuit having a first connection terminal, a second connection terminal, and a first control terminal for controlling the connection between the first connection terminal and the second connection terminal, the first control terminal being electrically connected to the touch detection chip, the first connection terminal being electrically connected to the first voltage output terminal, the second connection terminal being electrically connected to a first power supply terminal, the first power supply terminal being used to supply power to electrical loads in the main control circuit board; and a second control circuit having a third connection terminal, a fourth connection terminal, and a second control terminal for controlling the connection between the third connection terminal and the fourth connection terminal, the second control terminal being electrically connected to the touch detection chip, the third connection terminal being electrically connected to the second voltage output terminal and the power supply terminal of the touch detection chip respectively, the fourth connection terminal being electrically connected to the second power supply terminal, the second power supply terminal being used to supply power to other electrical loads in the display circuit board besides the touch detection chip.

[0074] In conjunction with the first aspect of this disclosure, in some embodiments, the first control circuit includes: a first sub-circuit and a second sub-circuit, the first sub-circuit being disposed on the main control circuit board and the second sub-circuit being disposed on the display circuit board, the first sub-circuit including: a first adapter terminal, a first connection terminal and a second connection terminal, the second sub-circuit including: a second adapter terminal and a first control terminal, the first adapter terminal and the second adapter terminal being electrically connected via an adapter line.

[0075] In conjunction with the first aspect of this disclosure, in some embodiments, the first sub-circuit includes: a first transistor and a second transistor. A first terminal of the first transistor is electrically connected to the first connection terminal, a second terminal of the first transistor is electrically connected to the second connection terminal, and is electrically connected to a first ground terminal via a first capacitor; a first terminal of the second transistor is electrically connected to the control terminal of the first transistor, a second terminal is electrically connected to a second ground terminal, and the control terminal is electrically connected to the first junction terminal.

[0076] In conjunction with the first aspect of this disclosure, in some embodiments, the first ground terminal is connected to analog ground, the second ground terminal is connected to digital ground, and the first sub-circuit further includes an isolator and a third transistor. The first terminal of the second transistor is electrically connected to the control terminal of the third transistor via the isolator, the first terminal of the third transistor is electrically connected to the control terminal of the first transistor, and the second terminal of the third transistor is electrically connected to the first ground terminal.

[0077] In conjunction with the first aspect of this disclosure, in some embodiments, the isolator is an optocoupler, the optocoupler comprising: a first input terminal, a second input terminal, a first output terminal, and a second output terminal, wherein the first input terminal is connected to a first reference voltage, the second input terminal is electrically connected to the first electrode of the second transistor, the first output terminal is electrically connected to the first connection terminal, and the second output terminal is electrically connected to the control electrode of the third transistor.

[0078] In conjunction with the first aspect of this disclosure, in some embodiments, the second sub-circuit includes a fourth transistor, the first terminal of which is electrically connected to the second junction terminal, the second terminal of which is connected to a second reference voltage, and the control terminal of which is electrically connected to the first control terminal.

[0079] In conjunction with the first aspect of this disclosure, in some embodiments, the second control circuit is disposed on the display circuit board.

[0080] In conjunction with the first aspect of this disclosure, in some embodiments, the second control circuit includes a fifth transistor and a sixth transistor. The first terminal of the fifth transistor is electrically connected to the third connection terminal, and the second terminal is electrically connected to the fourth connection terminal. The first terminal of the sixth transistor is electrically connected to the control terminal of the fifth transistor, the second terminal is electrically connected to the second ground terminal, and the control terminal is electrically connected to the second control terminal.

[0081] In conjunction with the first aspect of this disclosure, in some embodiments, the power supply circuit includes a switching power supply circuit, wherein a high-frequency transformer in the switching power supply circuit has a first output winding and a second output winding, the output node of the first output winding is electrically connected to the first voltage output terminal, and the output node of the second output winding is electrically connected to the second voltage output terminal.

[0082] In conjunction with the first aspect of this disclosure, in some embodiments, the control system is applied to a washing machine, and the electrical loads in the main control circuit board include at least one of a main control chip and a drum motor drive chip; other electrical loads in the display circuit board include at least one of a display control chip, a communication module, a display drive circuit, and a temperature acquisition circuit.

[0083] In a second aspect of this disclosure, a garment processing device is provided, comprising: a device body and a control system provided in the first aspect, wherein the control system is electrically connected to the device body.

[0084] In conjunction with the second aspect of this disclosure, in some embodiments, the clothing handling device is a washing machine.

[0085] In a third aspect of this disclosure, a standby low-power control method is provided, applied to the clothing processing device provided in the second aspect above. The method includes: after the touch detection chip is powered on, sending a first control signal to a first control terminal to control the connection between the first connection terminal and the second connection terminal; and sending a second control signal to the second control terminal to control the connection between the third connection terminal and the fourth connection terminal; the touch detection chip starts a timer and monitors whether the user triggers a power-on command within a preset time duration; if not, it sends at least a third control signal to the first control terminal to control the disconnection between the first connection terminal and the second connection terminal.

[0086] In conjunction with the second aspect of this disclosure, in some embodiments, the display circuit board is further provided with a display control chip and a communication module for accessing a network. The communication module is communicatively connected to the display control chip, and the display control chip is communicatively connected to the touch detection chip. The method further includes: the touch detection chip receiving status information sent by the display control chip and determining the network configuration status of the communication module based on the received status information. Sending at least a third control signal to the first control terminal includes: if network configuration is not completed, sending a third control signal to the first control terminal to control the first connection terminal to disconnect from the second connection terminal, and sending a fourth control signal to the second control terminal to control the third connection terminal to disconnect from the fourth connection terminal; if network configuration is completed, sending a third control signal to the first control terminal to control the first connection terminal to disconnect from the second connection terminal.

[0087] In a fourth aspect of this disclosure, a touch detection chip is provided, including a memory, a processor, and a computer program stored in the memory and running on the processor, wherein the computer program, when executed by the processor, implements the steps of the standby low-power control method provided in the third aspect above.

Claims

1. A control system, characterized in that, include: The main control circuit board is equipped with a power supply circuit, which has a first voltage output terminal and a second voltage output terminal. The display circuit board is equipped with a touch detection chip; The first control circuit includes a first connection terminal, a second connection terminal, and a first control terminal for controlling the connection between the first connection terminal and the second connection terminal. The first control terminal is electrically connected to the touch detection chip. The first connection terminal is electrically connected to the first voltage output terminal. The second connection terminal is electrically connected to the first power supply terminal. The first power supply terminal is used to supply power to the electrical load in the main control circuit board. The second control circuit includes a third connection terminal, a fourth connection terminal, and a second control terminal for controlling the connection and disconnection between the third connection terminal and the fourth connection terminal. The second control terminal is electrically connected to the touch detection chip. The third connection terminal is electrically connected to the second voltage output terminal and the power supply terminal of the touch detection chip, respectively. The fourth connection terminal is electrically connected to the second power supply terminal, which is used to supply power to other electrical loads in the display circuit board other than the touch detection chip.

2. The control system according to claim 1, characterized in that, The first control circuit includes a first sub-circuit and a second sub-circuit. The first sub-circuit is disposed on the main control circuit board, and the second sub-circuit is disposed on the display circuit board. The first sub-circuit includes a first adapter terminal, a first connection terminal, and a second connection terminal. The second sub-circuit includes a second adapter terminal and a first control terminal. The first adapter terminal and the second adapter terminal are electrically connected through an adapter line.

3. The control system according to claim 2, characterized in that, The first sub-circuit includes: A first transistor, wherein a first terminal of the first transistor is electrically connected to the first connection terminal, a second terminal of the first transistor is electrically connected to the second connection terminal, and is electrically connected to a first ground terminal through a first capacitor; The second transistor has its first terminal electrically connected to the control terminal of the first transistor, its second terminal electrically connected to the second ground terminal, and its control terminal electrically connected to the first adapter terminal.

4. The control system according to claim 3, characterized in that, The first grounding terminal is connected to analog ground, the second grounding terminal is connected to digital ground, and the first sub-circuit further includes an isolator and a third transistor. The first terminal of the second transistor is electrically connected to the control terminal of the third transistor through the isolator, the first terminal of the third transistor is electrically connected to the control terminal of the first transistor, and the second terminal of the third transistor is electrically connected to the first ground terminal.

5. The control system according to claim 4, characterized in that, The isolator is an optocoupler, which includes a first input terminal, a second input terminal, a first output terminal, and a second output terminal. The first input terminal is connected to a first reference voltage, the second input terminal is electrically connected to the first electrode of the second transistor, the first output terminal is electrically connected to the first connection terminal, and the second output terminal is electrically connected to the control electrode of the third transistor.

6. The control system according to claim 2, characterized in that, The second sub-circuit includes a fourth transistor, the first terminal of which is electrically connected to the second adapter terminal, the second terminal of which is connected to a second reference voltage, and the control terminal of which is electrically connected to the first control terminal.

7. The control system according to claim 1, characterized in that, The second control circuit is mounted on the display circuit board.

8. A garment processing device, characterized in that, include: The device body and the control system according to any one of claims 1-7, wherein the control system is electrically connected to the device body.

9. A standby low-power control method, characterized in that, The method, applied to the garment processing apparatus of claim 8, comprises: After the touch detection chip is powered on, it sends a first control signal to the first control terminal to control the connection between the first connection terminal and the second connection terminal, and sends a second control signal to the second control terminal to control the connection between the third connection terminal and the fourth connection terminal. The touch detection chip starts a timer and monitors whether the user triggers the power-on command within a preset time period. If not, it sends at least a third control signal to the first control terminal to control the first connection terminal to disconnect from the second connection terminal.

10. A touch detection chip, characterized in that, It includes a memory, a processor, and a computer program stored in the memory and running on the processor, wherein the computer program, when executed by the processor, implements the steps of the standby low-power control method of claim 9.

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