Control system and method, touch detection chip and garment treatment device

Abstract

A control system and method, a touch detection chip and a garment treatment device. The control system comprises a main control circuit board (11), a display circuit board (12), a first control circuit (121), and a second control circuit (122). With regard to the first control circuit (121), a first control end (c1) is electrically connected to a touch detection chip (170), a first connection end (a1) is electrically connected to a first voltage output end (U1), and a second connection end (b1) is electrically connected to a first power supply end (VCC1). With regard to the second control circuit (122), a second control end (c2) is electrically connected to the touch detection chip (170), a third connection end (a2) is separately and electrically connected to a second voltage output end (U2) and a power supply end of the touch detection chip (170), and a fourth connection end (b2) is electrically connected to a second power supply end (VCC2).

Description

Control system and method, touch detection chip, and laundry treating apparatus Cross-reference to related applications

[0001] This application claims priority to Chinese Patent Application No. 202410635290.0, filed May 21, 2024, the entire contents of which are incorporated herein by reference. TECHNICAL FIELD

[0002] The present disclosure belongs to the technical field of household appliances, and relates to a control system and method, a touch detection chip, and a laundry treating apparatus. BACKGROUND

[0003] Laundry treating apparatuses such as washing machines or washer-dryer combinations are large in size and not easy to move. In order to facilitate use, users usually keep the power plug in a connected state. As a result, there are high requirements for the standby power consumption of such apparatuses in order to reduce energy waste. For example, some countries or regions require that the standby power consumption of a washing machine as a whole be no more than 0.5 W when the power plug is powered on and the apparatus is not turned on, and that the standby power consumption of a whole apparatus with WIFI function be no more than 2 W after network configuration and when the apparatus is not turned on. SUMMARY

[0004] In a first aspect of the present disclosure, a control system is provided, comprising: a main control circuit board provided with a power supply circuit, the power supply circuit having a first voltage output end and a second voltage output end; a display circuit board provided with a touch detection chip; a first control circuit comprising a first connection end, a second connection end, and a first control end for controlling the on-off between the first connection end and the second connection end, the first control end being electrically connected to the touch detection chip, the first connection end being electrically connected to the first voltage output end, the second connection end being electrically connected to a first power supply end for supplying power to an electric load in the main control circuit board; and a second control circuit comprising a third connection end, a fourth connection end, and a second control end for controlling the on-off between the third connection end and the fourth connection end, the second control end being electrically connected to the touch detection chip, the third connection end being electrically connected to the second voltage output end and a power supply end of the touch detection chip respectively, the fourth connection end being electrically connected to a second power supply end for supplying power to an electric load other than the touch detection chip in the display circuit board.

[0005] In a second aspect of the present disclosure, a laundry treating apparatus is provided, comprising: an apparatus body and the control system provided in the first aspect of the present disclosure, the control system being electrically connected to the apparatus body.

[0006] In a third aspect of the present disclosure, a standby low-power consumption control method is provided, which is applied to the clothes processing device provided in the second aspect of the present disclosure. The method comprises: after the touch detection chip is powered on, sending a first control signal to the first control end to control the first connection end and the second connection end to be conductive, and sending a second control signal to the second control end to control the third connection end and the fourth connection end to be conductive; the touch detection chip starts timing and monitors whether a user triggers a start-up instruction within a preset timing duration. If not, at least a third control signal is sent to the first control end to control the first connection end and the second connection end to be disconnected.

[0007] In a fourth aspect of the present disclosure, a touch detection chip is provided, which comprises a memory, a processor, and a computer program stored in the memory and running on the processor. When the computer program is executed by the processor, the steps of the standby low-power consumption control method provided in the third aspect of the present disclosure are implemented.

[0008] The above description is only a summary of the technical solutions provided by the present disclosure. In order to enable one skilled in the art to better understand the technical means of the present disclosure, the contents of the specification can be implemented, and in order to make the above and other characteristics and effects of the present disclosure more obvious and easy to understand, the following embodiments of the present disclosure are described. BRIEF DESCRIPTION OF DRAWINGS

[0009] FIG. 1 shows a structural schematic diagram of a clothes processing device according to some embodiments of the present disclosure;

[0010] FIG. 2 shows a structural schematic diagram of a control system according to some embodiments of the present disclosure;

[0011] FIG. 3 shows a structural schematic diagram of a main control circuit board according to some embodiments of the present disclosure;

[0012] FIG. 4 shows a structural schematic diagram of a display circuit board according to some embodiments of the present disclosure;

[0013] FIG. 5 shows a circuit diagram of a first sub-circuit according to some embodiments of the present disclosure;

[0014] FIG. 6 shows a circuit diagram of a first sub-circuit according to some other embodiments of the present disclosure;

[0015] FIG. 7 shows a circuit diagram of a second sub-circuit according to some embodiments of the present disclosure;

[0016] FIG. 8 shows a circuit diagram of a second control circuit according to some embodiments of the present disclosure; and

[0017] FIG. 9 shows a flowchart of a standby low-power consumption control method according to some embodiments of the present disclosure. DETAILED DESCRIPTION

[0018] Taking a washing machine as an example, the washing machine mainly realizes the control of the whole machine through an electric control board such as a main control circuit board (also referred to as a "main variable integrated board") and a display circuit board. In order to realize low standby power consumption, in some examples, independent power supply circuits are respectively arranged on the main control circuit board and the display circuit board of the washing machine, the mains access of the main control circuit board is controlled by the display circuit board, when the power plug is connected to the mains but the whole machine is not started, the mains input of the main control circuit board is cut off by the display circuit board, so that the power supply circuit on the main control circuit board and the power consumption load connected with the power supply circuit on the main control circuit board are all without electricity, while the power supply circuit on the display circuit board and the power consumption load connected with the power supply circuit on the display circuit board are with electricity, thereby realizing the standby low power consumption requirement.

[0019] However, it is found in actual application that, in the above scheme, the display circuit board and the main control circuit board both need to be provided with independent power supply circuits, and a relay needs to be arranged on the display circuit board to control the mains access of the main control circuit board, so that there are too many components, the manufacturing difficulty is high, the production cost of the whole machine is high, and the after-sales failure rate of the electric control board is high.

[0020] Therefore, some embodiments of the present disclosure provide a clothes processing apparatus and a control system applied to the clothes processing apparatus, by arranging a power supply circuit with two voltage output ends on a main control circuit board of the control system, the display circuit board and the power consumption load in the main control circuit board are powered respectively. And, a first control circuit and a second control circuit are arranged in the control system, the first control end of the first control circuit and the second control end of the second control circuit are controlled by a touch detection chip on the display circuit board, so as to control the power gain and loss of the power consumption load in the main control circuit board and the power consumption load other than the touch detection chip in the display circuit board, thereby facilitating the reduction of standby power consumption to meet the standby low power consumption requirement of the product. In addition, since the power supply circuit no longer needs to be arranged separately in the display circuit board to supply power, compared with arranging one more power supply circuit, the production cost of the whole machine is effectively reduced and the number of electronic components used by the electric control board is reduced, thereby facilitating the reduction of manufacturing difficulty and the after-sales failure rate of the electric control board. In addition, some embodiments of the present disclosure also provide a standby low power consumption control method applied to the clothes processing apparatus and a touch detection chip for realizing the control method.

[0021] Exemplary embodiments of the present disclosure will be described in greater detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided so that the present disclosure can be more thoroughly understood and the scope of the present disclosure can be accurately conveyed to those skilled in the art.

[0022] It should be noted that the "including" or "comprising" or similar words appearing in the context of the present text means that the elements or objects appearing before the word are covered, and the equivalent elements or objects are not excluded. The "electrically connected" and "communicatively connected" described in the present text can be a direct connection, or can also be a connection through intermediate elements or intermediate circuits.

[0023] It should also be noted that the transistor in the present text can adopt a device with switching function such as a transistor or a field effect transistor, which is set according to the actual circuit needs, and the present disclosure does not limit this. For example, part of the transistors can adopt a field effect transistor such as a metal-oxide-semiconductor field effect transistor (MOSFET), and part of the transistors can adopt a transistor. Considering that the source and drain of some types of field effect transistors are symmetrical, they can be interchanged. For the transistor using the field effect transistor, one of the first and second poles is the source, and the other is the drain, and the control pole is the gate. For the transistor using the field effect transistor, the first pole is the collector, the second pole is the emitter, and the control pole is the base.

[0024] Fig. 1 shows a structural schematic diagram of a clothes processing apparatus 1 according to some embodiments of the present disclosure. As shown in Fig. 1, the clothes processing apparatus 1 provided by some embodiments of the present disclosure can include an apparatus body 20 and a control system 10 electrically connected with the apparatus body 20. For example, the clothes processing apparatus 1 can be a washing machine, a dryer, or a washer-dryer, etc. The washing machine is mainly taken as an example for description herein. Taking the washing machine as an example, the apparatus body 20 can include but is not limited to a shell, a touch screen, a washing tub arranged in the shell and used for accommodating clothes, a main motor used for driving the washing tub to rotate, etc. The control system 10 can be arranged in the shell, and various electric control devices in the apparatus body 20 such as the touch screen, the main motor, a water inlet valve, a drainage pump, a door lock, a heater, etc. are electrically connected to control the operation of the whole machine.

[0025] Some embodiments of the present disclosure provide a control system 10 applied to the above-mentioned clothes processing apparatus 1 such as a washing machine or a washer-dryer, etc. Fig. 2 shows a structural schematic diagram of a control system according to some embodiments of the present disclosure. As shown in Fig. 2, the control system 10 includes a main control circuit board 11 (i.e. a main integrated board), a display circuit board 12, a first control circuit 121, and a second control circuit 122. The main control circuit board 11 and the display circuit board 12 can realize the transmission of signals through a switching line.

[0026] Taking application in a washing machine as an example, FIG. 3 shows a structural schematic diagram of the main control circuit board 11 of some embodiments of the present disclosure. As shown in FIG. 3, the main control circuit board 11 is provided with a power supply circuit 110, an input end of the power supply circuit 110 is connected to a commercial power supply, and the power supply circuit 110 has a first voltage output end U1 and a second voltage output end U2, which are respectively used for supplying power to the electric loads in the main control circuit board 11 and the display circuit board 12. The voltage size output by the first voltage output end U1 and the voltage size output by the second voltage output end U2 are determined according to the actual product needs, and the present disclosure does not limit this. For example, in some application scenarios, the voltage output by the first voltage output end U1 can be 18V, and the voltage output by the second voltage output end U2 can be 24V, 12V, 5V or 3.3V, etc.

[0027] In some embodiments, the power supply circuit 110 includes a switching power supply circuit, and a high-frequency transformer 111 is arranged in the switching power supply circuit, and an input winding of the high-frequency transformer 111 is electrically connected with a switching power supply chip and peripheral circuit 112. For example, the input winding of the high-frequency transformer 111 can include a primary winding R IN1 and an auxiliary winding R IN2 . The output winding of the high-frequency transformer 111 has two, which are a first output winding R OUT1 and a second output winding R OUT2 . The output node of the first output winding R OUT1 is electrically connected with the first voltage output end U1 to supply power to the main control circuit board 11. The output node of the second output winding R OUT2 is electrically connected with the second voltage output end U2 to supply power to the display circuit board 12.

[0028] As shown in FIG. 3, the power supply circuit 110 can also include a rectifier filter circuit, and after the power plug 201 of the washing machine is plugged into the socket, the commercial power supply is transmitted to the rectifier filter circuit 113 after the filtering processing of the filter 202, and then transmitted to the switching power supply chip and peripheral circuit 112.

[0029] In some embodiments, a rectifier filter circuit can be arranged between the output node of the first output winding R OUT1 and the first voltage output end U1 according to the needs of the load, so that the first voltage output end U1 can provide stable and reliable direct current; similarly, a rectifier filter circuit can also be arranged between the output node of the second output winding R OUT2 and the second voltage output end U2 according to the needs of the load, so that the second voltage output end U2 can provide relatively stable and reliable direct current.

[0030] Figure 4 shows a structural schematic diagram of the display circuit board 12 according to some embodiments of the present disclosure. As shown in Figure 4, the display circuit board 12 is provided with a touch detection chip 170, which is used to implement touch detection and control the switching state of the first control circuit 121 and the second control circuit 122. In some embodiments, the touch detection chip 170 can be a microcontroller unit (MCU). Of course, in other embodiments, the touch detection chip 170 can also be other applicable chips with data processing functions, which can be referred to related technologies.

[0031] The first control circuit 121 is used to control the power-on and power-off of the power-consuming load in the master control circuit board 11. As shown in Figure 3, the first control circuit 121 can include a first connection end a1, a second connection end b1, and a first control end c1 for controlling the on-off between the first connection end a1 and the second connection end b1. The first control end c1 is electrically connected to the touch detection chip 170, the first connection end a1 is electrically connected to the first voltage output end U1, and the second connection end b1 is electrically connected to the first power supply end VCC1. The first power supply end VCC1 is used to supply power to the power-consuming load in the master control circuit board 11. In use, a control signal can be sent by the touch detection chip to the first control end c1 to control the on-off between the first connection end a1 and the second connection end b1, thereby controlling the power-on and power-off of the power-consuming load connected to the first power supply end VCC1.

[0032] The second control circuit 122 is used to control the power-on and power-off of the power-consuming load on the display circuit board 12 except the touch detection chip 170. As shown in Figure 4, the second control circuit 122 can include a third connection end a2, a fourth connection end b2, and a second control end c2 for controlling the on-off between the third connection end a2 and the fourth connection end b2. The second control end c2 is electrically connected to the touch detection chip 170, the third connection end a2 is electrically connected to the second voltage output end U2 and the power supply end of the touch detection chip 170, respectively, and the fourth connection end b2 is electrically connected to the second power supply end VCC2. The second power supply end VCC2 is used to supply power to the power-consuming load on the display circuit board 12 except the touch detection chip 170. In use, a control signal can be sent by the touch detection chip to the second control end c2 to control the on-off between the third connection end a2 and the fourth connection end b2, thereby controlling the power-on and power-off of the power-consuming load connected to the second power supply end VCC2.

[0033] It should be noted that the first control circuit 121 and the second control circuit 122 are respectively shown by switches SW1 and SW2 in FIG. 3 and FIG. 4 for ease of understanding, but not as a limitation on 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, and it is only required that the first control circuit 121 and the second control circuit 122 can control the power-on and power-off of the first power supply end VCC1 and the second power supply end VCC2 based on the control signal sent by the touch detection chip 170, and the present disclosure does not limit this.

[0034] When the control system 10 is applied to a washing machine, in some embodiments, the electric loads in the main control circuit board 11 can include but are not limited to at least one of the main control chip 130 and the drum motor driving chip 150, which is used to drive the main motor 203 of the washing machine to rotate the washing drum. In some embodiments, the other electric loads in the display circuit board 12 can include but are not limited to at least one of the display control chip 180, the communication module 183, the display driving circuit 181, and the temperature acquisition circuit 182. Among them, the display control chip 180 is electrically connected with the display driving circuit 181 to control the display of the touch screen. The communication module 183 is used to access the network, so that the user can control the washing machine to work through the control panel or the user terminal (such as a mobile phone and a tablet computer, etc.) accessing the network after completing the network configuration of the washing machine. 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 that can realize the network configuration of smart home, such as a Bluetooth module or a ZigBee module, and the present disclosure does not limit this.

[0035] When the first control circuit 121 is in the off state, i.e., the first connection end a1 is disconnected with the second connection end b1, the first power supply end VCC1 is powered off, and then the electric loads connected with the first power supply end VCC1, such as the main control chip 130 and the drum motor driving chip 150, are also powered off, so as to reduce the standby power consumption. Similarly, when the second control circuit 122 is in the off state, i.e., the third connection end a2 is disconnected with the fourth connection end b2, the second power supply end VCC2 is powered off, and then the electric loads connected with the second power supply end VCC2, such as the display control chip 180, the communication module 183, the display driving circuit 181, and the temperature acquisition circuit 182, are also powered off, so as to further reduce the standby power consumption.

[0036] When the second control circuit 122 is in the off state, the touch detection chip 170 still has power and can continue to work, so that when it is monitored that the user presses the power-on key on the touch screen, the first control circuit 121 and the second control circuit 122 can be controlled to be turned on, thereby restoring the power supply of the main control circuit board 11 and the display circuit board 12, and exiting the low-power standby mode.

[0037] Compared with separately setting a power supply circuit 110 for the display circuit board 12, by setting the power supply circuit 110 with two voltage output ends on the main control circuit board 11, and by setting the first control circuit 121 to control the first voltage output end to supply power to the power-consuming loads in the main control circuit board 11, and by setting the second control circuit 122 to control the second voltage output end to supply power to the power-consuming loads on the display circuit board 12 except the touch detection chip 170, the standby low-power consumption can be achieved, the production cost of the whole machine can be effectively reduced, the number of electronic components used by the control board can be reduced, thereby facilitating the reduction of manufacturing difficulty and the after-sales failure rate of the control board.

[0038] In some embodiments, the main control circuit board 11 can further include a first voltage reduction circuit 141 and a second voltage reduction circuit 142. The input end of the first voltage reduction circuit 141 is electrically connected with the first power supply end VCC1, and the output end is electrically connected with the barrel motor driving chip 150. The input end of the second voltage reduction circuit 142 is electrically connected with the first power supply end VCC1 or the output end of the first voltage reduction circuit 141, and the output end of the second voltage reduction circuit 142 is electrically connected with the power supply end of the main control chip 130 as the third power supply end VCC3, to supply power to the main control chip 130.

[0039] It should be noted that the first voltage reduction voltage can be set according to the voltage of the first power supply terminal VCC1 and the working voltage of the bucket motor driving chip 150, and the present disclosure does not limit this. The second voltage reduction voltage can be set according to the input terminal voltage and the working voltage of the master control chip 130, and the present disclosure does not limit this. For example, in some application scenarios, the voltage of the first power supply terminal VCC1 can be 18V, and the output voltage of the first voltage reduction voltage can be 15V; the third power supply terminal VCC3 can be 5V or 3.3V. In some embodiments, the display circuit board 12 can further include a third voltage reduction circuit 143, the input terminal of the third voltage reduction circuit 143 being electrically connected with the second voltage output terminal U2, and the output terminal being electrically connected with the third connection terminal a2 of the second control circuit 122. At the same time, the output terminal of the third voltage reduction circuit 143 can serve as a fourth power supply terminal VCC4 and be electrically connected with the power supply terminal of the touch detection chip 170 to supply power for the touch detection chip 170. The fourth connection terminal b2 of the second control circuit 122 can serve as a second power supply terminal VCC2 to supply power for the display control chip 180, the communication module 183, the display driving circuit 181 and the temperature acquisition circuit 182, etc. When the second control circuit 122 is in the off state, the fourth power supply terminal VCC4 still has power, and the second power supply terminal VCC2 loses power, so that the connected loads such as the display control chip 180, the communication module 183, the display driving circuit 181 and the temperature acquisition circuit 182 lose power.

[0040] It should be noted that the third voltage reduction circuit 143 can be set according to the voltage output by the second voltage output terminal U2 and the working voltage of the touch detection chip 170, and the present disclosure does not limit this. For example, in some application scenarios, the voltage output by the second voltage output terminal U2 can be 24V or 12V, and the working voltage of the touch detection chip 170 can be 5V or 3.3V. Of course, in another embodiment, when the voltage output by the second voltage output terminal U2 and the working voltage of the touch detection chip 170 are matched, the third voltage reduction circuit 143 described above can also not be set, and the actual product can be set according to the actual needs, and the present disclosure does not limit this.

[0041] In some embodiments, the main control circuit board 11 can further be provided with a first communication circuit 161, and the display circuit board 12 can further include a second communication circuit 162, a third communication circuit 163, and a fourth communication circuit 164. As shown in FIGS. 3 and 4, the main control chip 130 can be electrically connected with 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 with the touch detection chip 170 through the third communication circuit 163, and electrically connected with the communication module 183 through the fourth communication circuit 164. It should be noted that the circuit structures of the display drive circuit 181, the temperature acquisition circuit 182, the first communication circuit 161, the second communication circuit 162, the third communication circuit 163, and the fourth communication circuit 164 can refer to related technologies, and will not be described in detail here.

[0042] In some embodiments, the main control circuit board 11 can further be provided with a first drive circuit 151, a second drive circuit 152, a third drive circuit 153, and a fourth drive circuit 154, and the main control chip 130 is electrically connected with the first drive circuit 151, the second drive circuit 152, the third drive circuit 153, and the fourth drive circuit 154, respectively, as shown in FIG. 3. Among them, the first drive circuit 151 is used to drive the water inlet valve 204 of the washing machine, the second drive circuit 152 is used to drive the drain pump 205 of the washing machine, the third drive circuit 153 is used to drive the door lock 206 of the washing machine, and the fourth drive circuit 154 is used to drive 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 refer to related technologies, and will not be described in detail here.

[0043] In some embodiments, the first control circuit 121 and the second control circuit 122 can be realized by 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 circuit in the main control circuit board 11 on the one hand to control the power-on and power-off of the electrical load in the main control circuit board 11, and on the other hand to accept the control of the touch detection chip 170 in the display circuit board 12, the first control circuit 121 can be partially arranged on the main control circuit board 11 and partially arranged on the display circuit board 12.

[0044] In some embodiments, the first control circuit 121 can include a first sub-circuit 1201 and a second sub-circuit 1202. The first sub-circuit 1201 is arranged on the master control circuit board 11, and the second sub-circuit 1202 is arranged on the display circuit board 12. The first sub-circuit 1201 includes the first switch end SW_A1 and the first connection end a1 and the second connection end b1 described above. The second sub-circuit 1202 includes the second switch end SW_A2 and the first control end c1, and the first switch end SW_A1 and the second switch end SW_A2 can be electrically connected through the switch interface and the switch circuit.

[0045] FIG. 5 shows a circuit diagram of the first sub-circuit 1201 according to some embodiments of the present disclosure. As shown in FIG. 5, in some embodiments, the first sub-circuit 1201 can include a first transistor Q1 and a second transistor Q2. The first pole of the first transistor Q1 is electrically connected with the first connection end a1, i.e., electrically connected with the first voltage output end U1. The second pole of the first transistor Q1 is electrically connected with the second connection end b1, i.e., electrically connected with the first power supply end VCC1. The second pole of the first transistor Q1 is also electrically connected with the first ground end GND1 through the first capacitor C1. The first pole of the second transistor Q2 is electrically connected with the control pole of the first transistor Q1, the second pole is electrically connected with the second ground end GND2, and the control pole is electrically connected with the first switch end SW_A1. The first switch end SW_A1 can receive a signal from the second switch end 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. As shown in FIG. 5, the first transistor Q1 may, for example, be a field effect transistor, and the second transistor Q2 may, for example, be an NPN type triode.

[0046] It should be noted that the first ground end GND1 and the second ground end GND2 described above can be connected to the same ground (i.e., common ground), or can also be connected to different grounds, which is set according to the actual product needs, and the present disclosure does not limit this.

[0047] As shown in FIG. 5, the first ground terminal GND1 and the second ground terminal GND2 are connected to the same ground. For example, the first ground terminal GND1 and the second ground terminal GND2 are both connected to an analog ground, i.e., a non-isolated ground, or the first ground terminal GND1 and the second ground terminal GND2 are both connected to a digital ground, i.e., an isolated ground. In some embodiments, the first sub-circuit 1201 can 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 can be a polarized capacitor, and the second capacitor C2 and the third capacitor C3 can be non-polarized capacitors. A first end of the first resistor R1 is electrically connected to the first connection terminal a1, a second end of the first resistor R1 and a positive pole of the first capacitor C1 are electrically connected to the second connection terminal b1, and a negative pole of the first capacitor C1 is electrically connected to the first reference ground. A first end of the second resistor R2 is electrically connected to a first pole of the second transistor Q2, and a second end thereof is electrically connected to a control pole of the first transistor Q1. A first end of the third resistor R3 is electrically connected to the first pole of the first transistor Q1, and a second end thereof is electrically connected to the control pole of the first transistor Q1. The second capacitor C2 and the third capacitor C3 are arranged in parallel, and both first ends thereof are electrically connected to the control pole of the second transistor Q2, and both second ends thereof are electrically connected to the second ground terminal GND2.

[0048] FIG. 6 shows a circuit diagram of the first sub-circuit 1201 according to some other embodiments of the present disclosure. As shown in FIG. 6, 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 an analog ground, and the second ground terminal GND2 is connected to a digital ground. At this time, in order to realize the isolation of the two grounds, the above-mentioned first sub-circuit 1201 can further include an isolator and a third transistor Q3. A first pole of the second transistor Q2 is electrically connected to a control pole of the third transistor Q3 through the isolator, a first pole of the third transistor Q3 is electrically connected to the control pole of the first transistor Q1, and a second pole of the third transistor Q3 is electrically connected to the first ground terminal GND1. As shown in FIG. 6, the isolator can be, for example, an optocoupler U6, and the third transistor Q3 can be, for example, an NPN type triode. Of course, in addition to the optocoupler U6, other applicable isolators can also be used, which are not limited in the present disclosure.

[0049] As shown in FIG. 6, the optocoupler U6 can include a first input end, a second input end, a first output end, and a second output end. The first input end is connected to a first reference voltage Vref1, the second input end is electrically connected to the first electrode of the second transistor Q2, the first output end is electrically connected to the first connection end a1, and the second output end is electrically connected to the control electrode of the third transistor Q3. In some embodiments, the light-emitting source of the optocoupler U6 can be a light-emitting diode, and the light receiver can be a photosensitive triode. When the first input end and the second input end are turned on, the light-emitting diode emits light, so that the photosensitive triode is in a conductive state, i.e., the first output end and the second output end are turned on. The magnitude of the first reference voltage Vref1 can be set according to the actual circuit needs, for example, it can be 5V. In some embodiments, the voltage output by the second voltage output end U2 can be input into a voltage conversion chip, and the first reference voltage Vref1 output by the voltage conversion chip can be provided to the first input end of the optocoupler U6.

[0050] As shown in FIG. 6, the first sub-circuit 1201 can further include a fourth resistor R4 and a fifth resistor R5. The first input end of the optocoupler U6 is electrically connected to the first end of the fourth resistor R4, and the second end of the fourth resistor R4 is connected to the first reference voltage Vref1. The second output end of the optocoupler U6 is electrically connected to the first end of the fifth resistor R5, and the second end of the fifth resistor R5 is electrically connected to the control electrode of the third transistor Q3.

[0051] FIG. 7 shows a circuit diagram of the second sub-circuit 1202 according to some embodiments of the present disclosure. As shown in FIG. 7, the second sub-circuit 1202 can include a fourth transistor Q4, the first electrode of the fourth transistor Q4 is electrically connected to the second switch end SW_A2, the second electrode is connected to a second reference voltage Vref2, and the control electrode is electrically connected to the first control end c1. The fourth transistor Q4 can be, for example, a PNP type triode. It should be noted that the second reference voltage Vref2 can be the same as the above-mentioned first reference voltage Vref1, or can also be different, which is set according to the actual circuit needs. For example, in some application scenarios, the second reference voltage Vref2 can be the same as the first reference voltage Vref1, both of which are 5V. The first control end c1 is electrically connected to the touch detection chip 170 and receives the control signal sent by the touch detection chip 170, so as to control the on-off between the first connection end a1 and the second connection end b1 according to the received control signal. For example, the first control end c1 can be electrically connected to the INT1 pin of the touch detection chip 170.

[0052] As shown in FIG. 7, in some embodiments, the second sub-circuit 1202 can further include a sixth resistor R6, the first end of the sixth resistor R6 is electrically connected to the first electrode of the fourth transistor Q4, and the second end is electrically connected to the second switch end SW_A2.

[0053] In some embodiments, the second control circuit 122 can be disposed on the display circuit board 12. FIG. 8 shows a circuit diagram of the second control circuit 122 according to some embodiments of the present disclosure. As shown in FIG. 8, the second control circuit 122 can include a fifth transistor Q5 and a sixth transistor Q6. The first electrode of the fifth transistor Q5 is electrically connected to the third connection end a2, and the second electrode is electrically connected to the fourth connection end b2. The first electrode of the sixth transistor Q6 is electrically connected to the control electrode of the fifth transistor Q5, the second electrode is electrically connected to the second ground end GND2, and the control electrode is electrically connected to the second control end c2. The second control end c2 is respectively connected to different pins of the touch detection chip 170, and receives the control signal sent by the touch detection chip 170 to control the conduction between the third connection end a2 and the fourth connection end b2 according to the received control signal. For example, the second control end c2 can be electrically connected to the INT0 pin of the touch detection chip 170.

[0054] As shown in FIG. 8, the fifth transistor Q5 can be, for example, a field effect transistor, and the sixth transistor Q6 can be, for example, an NPN type transistor. In some embodiments, the second control circuit 122 can 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 end of the seventh resistor R7 is electrically connected to the first electrode of the sixth transistor Q6, the second end is electrically connected to the control electrode of the fifth transistor Q5, the eighth resistor R8 is connected in parallel with the fourth capacitor C4, the first ends of the two are electrically connected to the control electrode of the fifth transistor Q5, and the second end is electrically connected to the third connection end a2. The first end of the ninth resistor R9 is electrically connected to the second control end c2, the second end of the ninth resistor R9 and the first end of the tenth resistor R10 are electrically connected to the control electrode of the sixth transistor Q6, and the second end of the tenth resistor R10 is electrically connected to the second ground end GND2.

[0055] Some embodiments of the present disclosure provide a standby low-power consumption control method, which is applied to the above-mentioned clothes processing device 1, such as a washing machine or a washing-drying integrated machine, etc. In some embodiments, the standby low-power consumption control method can be executed by the touch detection chip 170 in the control system 10 of the clothes processing device 1.

[0056] FIG. 9 shows a flowchart of the standby low-power consumption control method according to some embodiments of the present disclosure. As shown in FIG. 9, the standby low-power consumption control method can at least include the following steps S110 and S120.

[0057] In step S110, after the touch detection chip is powered on, a first control signal is sent to the first control end of the first control circuit to control the conduction between the first connection end and the second connection end of the first control circuit, and a second control signal is sent to the second control end of the second control circuit to control the conduction between the third connection end and the fourth connection end of the second control circuit.

[0058] In step S120, the touch detection chip starts timing, and monitors whether the user triggers the start-up instruction within the preset timing duration. If not, at least a third control signal is sent to the first control end to control the first connection end and the second connection end to be disconnected.

[0059] Taking a washing machine as an example, the power plug 201 of the washing machine is inserted into a socket, the whole machine is powered on, and the power supply circuit 110 on the main control circuit board 11 starts to work, and the first voltage output end and the second voltage output end respectively output voltages to supply power to 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.

[0060] It should be noted that the first control signal and the second control signal in step S110 can be output by different pins of the touch detection chip 170. The action of sending the first control signal to the first control end c1 of the first control circuit 121 and the action of sending the second control signal to the second control end c2 of the second control circuit 122 can be executed simultaneously, or can be executed sequentially, which is set according to the actual product, and the present disclosure does not limit this. In addition, the action of starting timing in step S120 and the actions of sending the first control signal and the second control signal in step S110 can be executed simultaneously, or can be executed sequentially according to the flow of FIG. 9, which is set according to the actual product, and the present disclosure does not limit this.

[0061] In some embodiments, the timer can be pre-configured, and the timing is started in a countdown manner. The timing duration can be set according to the needs of the actual application scene, for example, it can be set to 30 seconds to 180 seconds, such as 30 seconds, 60 seconds, 120 seconds or 180 seconds, and the present disclosure does not limit this.

[0062] If the touch detection chip 170 does not monitor the user to trigger the start-up instruction within the above timing duration, it means that the user does not perform the start-up action such as pressing the start-up key within the above timing duration, indicating that he will not use the washing machine temporarily, and the washing machine can be controlled to enter the low-power standby mode. Of course, if the touch detection chip 170 monitors the user to trigger the start-up instruction within the above timing duration, it means that the user is about to use the washing machine, and the first connection end a1 and the second connection end b1 of the first control circuit 121, and the third connection end a2 and the fourth connection end b2 of the second control circuit 122 all need to remain in the conducting state to continuously supply power to the power consumption loads in the main control circuit board 11 and the display circuit board 12.

[0063] In step S120, the touch detection chip 170 sends a third control signal to the first control end c1 to control the first connection end a1 and the second connection end b1 to be disconnected, so that the power supply of the power load in the main control circuit board 11 is cut off, thereby effectively reducing the standby power consumption of the washing machine and making the washing machine enter the low-power standby mode. In some embodiments, when no user-triggered start-up instruction is monitored within the above-mentioned timing duration, the touch detection chip 170 can send a fourth control signal to the second control end c2 of the second control circuit 122 to control the third connection end a2 and the fourth connection end b2 to be disconnected, so that the power supply of the power load in the display circuit board 12 except the touch detection chip 170 is cut off, which is conducive to further reducing the standby power consumption.

[0064] In some embodiments, the display circuit board 12 of the washing machine is further provided with a display control chip 180 and a communication module 183 such as a WIFI module for accessing the network, so that the washing machine has the network configuration function of smart home. The communication module 183 is in communication connection with the display control chip 180, and the display control chip 180 is in communication connection with the touch detection chip 170.

[0065] Based on this, the above-mentioned standby low-power control method can further include: the touch detection chip 170 receives the state information sent by the display control chip 180, and determines the network configuration state of the communication module 183 based on the received state information. It should be noted that the network configuration state determining step can be executed before step S120, for example, after the touch detection chip 170 and the display control chip 180 are powered on; or it can also be executed substantially simultaneously with the action of starting the timing by the touch detection chip 170 in step S120, and the present disclosure does not limit this, and the network configuration state of the communication module 183 can be determined before the timing ends.

[0066] Correspondingly, at least the sending of the third control signal to the first control end c1 in step S120 can include: if the network configuration is not completed, sending the third control signal to the first control end c1 to control the first connection end a1 and the second connection end b1 of the first control circuit 121 to be disconnected, and sending the fourth control signal to the second control end c2 to control the third connection end a2 and the fourth connection end b2 of the second control circuit 122 to be disconnected, so that the washing machine enters the first low-power standby mode; if the network configuration is completed, the third control signal is sent to the first control end c1 to control the first connection end a1 and the second connection end b1 to be disconnected, so that the washing machine enters the second low-power standby mode.

[0067] If the user has not completed the network configuration, the communication module 183 can also not work, and the power consumption of the main control circuit board 11 and the display circuit board 12 can be reduced. If the user has completed the network configuration, the communication module 183 needs to keep working, so that the washing machine can respond to the instructions sent by the user through the control panel or the user terminal at any time, and the power consumption of the main control circuit board 11 and the display circuit board 12 can be reduced.

[0068] In this way, the washing machine can enter the first low-power standby mode or the second low-power standby mode according to the network configuration state of the washing machine when the washing machine is connected to the mains and the user does not turn on the washing machine, which helps to reduce the standby power consumption of the washing machine as much as possible without affecting the user experience.

[0069] It can be understood that the touch detection chip 170 will continue to monitor whether the user triggers the start-up instruction after the step S120 is performed, for example, the first connection end a1 and the second connection end b1 are disconnected, or the first connection end a1 and the second connection end b1 and the third connection end a2 and the fourth connection end b2 are disconnected. In response to the start-up instruction triggered by the user, the first connection end a1 and the second connection end b1 are turned on, or the first connection end a1 and the second connection end b1 and the third connection end a2 and the fourth connection end b2 are turned on, so as to restore the power supply to the power consumption of the main control circuit board 11 and the display circuit board 12, thereby facilitating the user to use.

[0070] In addition, some embodiments of the present 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. The computer program is executed by the processor to implement the steps of the standby low-power control method provided by the method embodiments described above. The implementation process of the standby low-power control method can refer to the above method embodiments, which will not be described here. For example, the touch detection chip can be an MCU or other chip with data processing function.

[0071] Some embodiments of the present disclosure provide a computer program product, which, when executed by a processor, implements the steps of the standby low-power control method described above and achieves the same technical effects. To avoid repetition, this will not be described here.

[0072] Some embodiments of the present disclosure provide a computer readable storage medium, having stored thereon a computer program. When the computer program is executed by a processor, the steps of the standby low-power consumption control method described above are implemented, and the same technical effects can be achieved. To avoid repetition, they will not be described here. For example, the computer readable storage medium can be a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, etc.

[0073] According to a first aspect of the present disclosure, a control system is provided, comprising: a master control circuit board, provided with a power supply circuit, the power supply circuit having a first voltage output end and a second voltage output end; a display circuit board, provided with a touch detection chip; a first control circuit, comprising a first connection end, a second connection end, and a first control end for controlling the on-off between the first connection end and the second connection end, the first control end being electrically connected to the touch detection chip, the first connection end being electrically connected to the first voltage output end, the second connection end being electrically connected to a first power supply end, the first power supply end being used for supplying power to an electric load in the master control circuit board; a second control circuit, comprising a third connection end, a fourth connection end, and a second control end for controlling the on-off between the third connection end and the fourth connection end, the second control end being electrically connected to the touch detection chip, the third connection end being electrically connected to the second voltage output end and a power supply end of the touch detection chip respectively, the fourth connection end being electrically connected to a second power supply end, the second power supply end being used for supplying power to an electric load other than the touch detection chip in the display circuit board.

[0074] In some embodiments, the first control circuit comprises: a first sub-circuit and a second sub-circuit, the first sub-circuit being arranged on the master control circuit board, and the second sub-circuit being arranged on the display circuit board, the first sub-circuit comprising: a first adapter end, the first connection end, and the second connection end, the second sub-circuit comprising: a second adapter end and the first control end, the first adapter end being electrically connected to the second adapter end through an adapter circuit.

[0075] In some embodiments, the first sub-circuit comprises: a first transistor and a second transistor. The first pole of the first transistor is electrically connected to the first connection end, the second pole of the first transistor is electrically connected to the second connection end, and the first capacitor is electrically connected to the first ground end; the first pole of the second transistor is electrically connected to the control pole of the first transistor, the second pole is electrically connected to the second ground end, and the control pole is electrically connected to the first adapter end.

[0076] In some embodiments, the first ground terminal is connected to an analog ground, the second ground terminal is connected to a digital ground, and the first sub-circuit further comprises an isolator and a third transistor. A first pole of the second transistor is electrically connected to a control pole of the third transistor through the isolator, a first pole of the third transistor is electrically connected to a control pole of the first transistor, and a second pole of the third transistor is electrically connected to the first ground terminal.

[0077] In some embodiments, the isolator is an optoelectronic coupler, which comprises 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 pole 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 pole of the third transistor.

[0078] In some embodiments, the second sub-circuit comprises a fourth transistor, a first pole of the fourth transistor is electrically connected to the second switching terminal, a second pole of the fourth transistor is connected to a second reference voltage, and a control pole of the fourth transistor is electrically connected to the first control terminal.

[0079] In some embodiments, the second control circuit is arranged on the display circuit board.

[0080] In some embodiments, the second control circuit comprises a fifth transistor and a sixth transistor. A first pole of the fifth transistor is electrically connected to the third connection terminal, and a second pole of the fifth transistor is electrically connected to the fourth connection terminal. A first pole of the sixth transistor is electrically connected to the control pole of the fifth transistor, a second pole of the sixth transistor is electrically connected to the second ground terminal, and a control pole of the sixth transistor is electrically connected to the second control terminal.

[0081] In some embodiments, the power supply circuit comprises a switching power supply circuit, and a high-frequency transformer in the switching power supply circuit has a first output winding and a second output winding. An output node of the first output winding is electrically connected to the first voltage output terminal, and an output node of the second output winding is electrically connected to the second voltage output terminal.

[0082] In some embodiments, the control system is applied to a washing machine, and the electric loads in the main control circuit board comprise at least one of a main control chip and a drum motor driving chip. The other electric loads in the display circuit board comprise at least one of a display control chip, a communication module, a display driving circuit, and a temperature acquisition circuit.

[0083] According to a second aspect of the present disclosure, a laundry treatment apparatus is provided, which comprises an apparatus body and the control system provided by the first aspect.

[0084] In some embodiments, the clothes processing device is a washing machine.

[0085] According to a third aspect of the present disclosure, a standby low-power consumption control method is provided, which is applied to the clothes processing device provided in the second aspect. The method comprises: after the touch detection chip is powered on, sending a first control signal to the first control end to control the first connection end and the second connection end to be conductive, and sending a second control signal to the second control end to control the third connection end and the fourth connection end to be conductive; the touch detection chip starts timing and monitors whether a user triggers a start-up instruction within a preset timing duration, and if not, at least sends a third control signal to the first control end to control the first connection end and the second connection end to be disconnected.

[0086] 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 in communication connection with the display control chip, the display control chip is in communication connection with the touch detection chip, and the method further comprises: the touch detection chip receives state information sent by the display control chip and determines the network configuration state of the communication module based on the received state information. The at least sending a third control signal to the first control end comprises: if the network configuration is not completed, sending a third control signal to the first control end to control the first connection end and the second connection end to be disconnected, and sending a fourth control signal to the second control end to control the third connection end and the fourth connection end to be disconnected; if the network configuration is completed, sending a third control signal to the first control end to control the first connection end and the second connection end to be disconnected.

[0087] According to a fourth aspect of the present disclosure, a touch detection chip is provided, which comprises a memory, a processor, and a computer program stored in the memory and running on the processor, and the computer program realizes the steps of the standby low-power consumption control method provided in the third aspect when executed by the processor.

[0088] It should be understood by those of ordinary skill in the art that the above discussion of any embodiment is merely exemplary and is not intended to suggest that the scope of the present disclosure is limited to these examples; under the idea of the present 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 changes of different aspects of one or more embodiments of the present disclosure as described above. In order to be brief, they are not provided in detail.

[0089] While exemplary embodiments of the present disclosure have been described, additional variations and modifications in these embodiments can appear to those skilled in the art once they know the basic inventive concept. Therefore, the appended claims are intended to cover all such variations and modifications that fall within the scope of the present disclosure.

Claims

1. A control system comprising: a main control circuit board provided with a power supply circuit having a first voltage output end and a second voltage output end; a display circuit board provided with a touch detection chip; a first control circuit including a first connection end, a second connection end, and a first control end for controlling the on-off between the first connection end and the second connection end, the first control end being electrically connected to the touch detection chip, the first connection end being electrically connected to the first voltage output end, the second connection end being electrically connected to a first power supply end for supplying power to an electric load in the main control circuit board; and a second control circuit including a third connection end, a fourth connection end, and a second control end for controlling the on-off between the third connection end and the fourth connection end, the second control end being electrically connected to the touch detection chip, the third connection end being electrically connected to the second voltage output end and a power supply end of the touch detection chip respectively, the fourth connection end being electrically connected to a second power supply end for supplying power to an electric load other than the touch detection chip in the display circuit board. The first control circuit includes a first sub-circuit and a second sub-circuit, the first sub-circuit being provided on the main control circuit board, the second sub-circuit being provided on the display circuit board, the first sub-circuit including a first adapter end, the first connection end, and the second connection end, the second sub-circuit including a second adapter end and the first control end, the first adapter end being electrically connected to the second adapter end through an adapter circuit.

2. The control system of claim 1, wherein, The first sub-circuit includes:

3. The control system of claim 2, wherein, a first transistor having a first pole electrically connected to the first connection end, a second pole electrically connected to the second connection end, and a control pole electrically connected to a first ground end through a first capacitor; and a second transistor having a first pole electrically connected to the control pole of the first transistor, a second pole electrically connected to a second ground end, and a control pole electrically connected to the first adapter end. The first ground end is connected to an analog ground, the second ground end is connected to a digital ground, the first sub-circuit further includes an isolator and a third transistor, 4. The control system of claim 3, wherein, the first pole of the second transistor is electrically connected to the control pole of the third transistor through the isolator, the first pole of the third transistor is electrically connected to the control pole of the first transistor, and the second pole of the third transistor is electrically connected to the first ground end. The isolator is an optoelectronic coupler including a first input end, a second input end, a first output end, and a second output end, wherein the first input end is connected to a first reference voltage, the second input end is electrically connected to the first pole of the second transistor, the first output end is electrically connected to the first connection end, and the second output end is electrically connected to the control pole of the third transistor.

5. The control system of claim 4, wherein, The second sub-circuit includes a fourth transistor having a first pole electrically connected to the second adapter end, a second pole connected to a second reference voltage, and a control pole electrically connected to the first control end.

6. The control system of claim 2, wherein, ​ 7. The control system of claim 1, wherein, The second control circuit is arranged on the display circuit board.

8. The control system of any one of claims 1-7, wherein, The second control circuit comprises: a fifth transistor, a first electrode of the fifth transistor being electrically connected with the third connection end, a second electrode of the fifth transistor being electrically connected with the fourth connection end; and a sixth transistor, a first electrode of the sixth transistor being electrically connected with a control electrode of the fifth transistor, a second electrode of the sixth transistor being electrically connected with a second ground end, and a control electrode of the sixth transistor being electrically connected with the second control end.

9. The control system of claim 1, wherein, The power supply circuit comprises a switching power supply circuit, a high-frequency transformer in the switching power supply circuit having a first output winding and a second output winding, an output node of the first output winding being electrically connected with the first voltage output end, and an output node of the second output winding being electrically connected with the second voltage output end.

10. The control system of claim 1, wherein, The control system is applied to a washing machine, the electric load in the main control circuit board comprising at least one of a main control chip and a drum motor driving chip, and the other electric load in the display circuit board comprising at least one of a display control chip, a communication module, a display driving circuit and a temperature acquisition circuit. 11.A laundry treating apparatus, comprising: The device body and the control system of any one of claims 1-10, the control system being electrically connected with the device body. 12.The laundry treating apparatus according to claim 11, wherein, The laundry treatment device is a washing machine.

13. A standby low-power consumption control method, applied to the laundry treatment device of claim 11 or 12, the method comprising: after the touch detection chip is powered on, sending a first control signal to the first control end to control the first connection end and the second connection end to be conductive, and sending a second control signal to the second control end to control the third connection end and the fourth connection end to be conductive; and the touch detection chip starts timing and monitors whether a user triggers a start-up instruction within a preset timing duration, and if not, at least sends a third control signal to the first control end to control the first connection end and the second connection end to be disconnected.

14. The method of claim 13, wherein, The display circuit board is further provided with a display control chip and a communication module for accessing a network, the communication module being in communication connection with the display control chip, the display control chip being in communication connection with the touch detection chip, and the method further comprises that the touch detection chip receives state information sent by the display control chip and determines a network configuration state of the communication module based on the received state information. The at least sending of the third control signal to the first control end comprises that if the network configuration is not completed, the third control signal is sent to the first control end to control the first connection end and the second connection end to be disconnected, and a fourth control signal is sent to the second control end to control the third connection end and the fourth connection end to be disconnected; and if the network configuration is completed, the third control signal is sent to the first control end to control the first connection end and the second connection end to be disconnected.

15. A touch detection chip, comprising a memory, a processor and a computer program stored on the memory and running on the processor, the computer program being executed by the processor to implement the steps of the standby low-power consumption control method of claim 13 or 14.

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