Communication circuit and laundry treating apparatus

Abstract

The application provides a communication circuit and a clothes processing apparatus, and belongs to the technical field of home appliance control. The communication circuit comprises a switch module. The switch module is connected with a display module. The switch module is also connected with a main control module. The switch module is disconnected when the data port of the display module is in a signal idle state, so as to control the circuit between the display module and the main control module to be disconnected. The switch module is closed when the data port of the display module is in a signal transmission state, so as to control the circuit between the display module and the main control module to be conducted. The switch module is disconnected when the signal is idle, so that the circuit between the display module and the main control module is disconnected, no static power consumption loss is generated, the static power consumption in the signal idle state is avoided, and the overall power consumption is reduced. The switch module is closed when the signal is transmitted, so that the circuit between the display module and the main control module is conducted, and the communication function between the display module and the main control module is realized.

Description

Technical Field

[0001] This application belongs to the field of home appliance control technology, and in particular relates to a communication circuit and a clothing processing device. Background Technology

[0002] Clothing processing equipment includes devices for washing clothes, devices for drying clothes, and washer-dryer combos that can perform both washing and drying. During the operation of clothing processing equipment, the display panel and main control board are the core components of the overall control system, working collaboratively and interdependently. The display panel and main control board exchange signals via communication circuits, jointly enabling human-machine interaction and automating the clothing processing flow, ensuring the intelligent operation of the clothing processing equipment.

[0003] However, when traditional circuits are idle, static power loss occurs, which leads to an increase in the overall power consumption of the device, resulting in energy waste and increased operating costs. Utility Model Content

[0004] The purpose of this application is to provide a communication circuit and a clothing processing device, which aims to solve the problem of static power loss when the traditional circuit is in an idle state.

[0005] This application provides a communication circuit, including:

[0006] A switch module is connected to the display module, and the switch module is also connected to the main control module;

[0007] The switch module is used to disconnect when the data port of the display module is in a signal idle state, thereby controlling the circuit between the display module and the main control module to disconnect;

[0008] The switch module is also used to close when the data port of the display module is in the signal transmission state, thereby controlling the circuit between the display module and the main control module to be connected.

[0009] In some embodiments of this application, the communication circuit further includes:

[0010] An optocoupler module is connected to the switch module and also to the main control module. The optocoupler module is used to isolate and transmit data signals between the switch module and the main control module when the switch module is closed.

[0011] In some embodiments of this application, the switching module includes:

[0012] A P-type bipolar transistor, wherein the base terminal of the P-type bipolar transistor is connected to the display module, the emitter terminal of the P-type bipolar transistor is used to acquire a first voltage signal, and the collector terminal of the P-type bipolar transistor is connected to the optocoupler module.

[0013] The P-type bipolar transistor is used to be turned off when the data port of the display module is in the signal idle state, and turned on when the data port of the display module is in the signal transmission state.

[0014] In some embodiments of this application, the switching module further includes:

[0015] A current-limiting stabilization module is provided, wherein the first end of the current-limiting stabilization module is connected to the display module, the second end of the current-limiting stabilization module is connected to the base terminal of the P-type bipolar transistor, and the third end of the current-limiting stabilization module is connected to the emitter terminal of the P-type bipolar transistor. The current-limiting stabilization module is used to stabilize the operating state of the P-type bipolar transistor.

[0016] In some embodiments of this application, the switching module further includes:

[0017] A current limiting module is provided, one end of which is connected to the collector terminal of the P-type bipolar transistor, and the other end of which is connected to the optocoupler module. The current limiting module is used to limit the current signal at the collector terminal of the P-type bipolar transistor.

[0018] In some embodiments of this application, the current limiting and stabilizing module includes:

[0019] A first resistor, one end of which is connected to the display module, and the other end of which is connected to the base terminal of the P-type bipolar transistor;

[0020] A second resistor is connected at one end to the other end of the first resistor, and at the other end of the second resistor is connected to the emitter terminal of the P-type bipolar transistor.

[0021] In some embodiments of this application, the current limiting module includes:

[0022] The third resistor has one end connected to the collector terminal of the P-type bipolar transistor and the other end connected to the optocoupler module.

[0023] In some embodiments of this application, the optocoupler module includes:

[0024] An optocoupler is provided, wherein the first input terminal of the optocoupler is connected to the switch module, the second input terminal of the optocoupler is connected to the first reference ground, the first output terminal of the optocoupler is connected to the main control module, and the second output terminal of the optocoupler is connected to the second reference ground.

[0025] In some embodiments of this application, the optocoupler module further includes a first protection module and / or a filtering and voltage regulation module;

[0026] One end of the first protection module is connected to the first input terminal of the optocoupler, and the other end of the first protection module is connected to the second input terminal of the optocoupler. The first protection module is used to protect the light-emitting diode at the input terminal of the optocoupler.

[0027] The first terminal of the filtering and voltage regulation module is connected to the first output terminal of the optocoupler, the second terminal of the filtering and voltage regulation module is connected to the second output terminal of the optocoupler, and the third terminal of the filtering and voltage regulation module is connected to the main control module. The filtering and voltage regulation module is used to filter and regulate the output voltage signal of the optocoupler.

[0028] In some embodiments of this application, the optocoupler module further includes a pull-up module and / or a second protection module;

[0029] One end of the pull-up module is used to acquire the second voltage signal, and the other end of the pull-up module is connected to the first output terminal of the optocoupler. The pull-up module is used to pull up the voltage signal of the first output terminal of the optocoupler.

[0030] One end of the second protection module is connected to the second output terminal of the optocoupler, and the other end of the second protection module is connected to the first output terminal of the optocoupler. The second protection module is used to protect the phototransistor at the output terminal of the optocoupler.

[0031] This application provides a garment processing device, including the communication circuit described in any of the above embodiments.

[0032] The beneficial effects of this utility model embodiment compared with the prior art are:

[0033] The switch module connects the display module and the main control module, forming a signal transmission circuit between them. The switch module disconnects when the display module's data port is in an idle state, thus controlling the circuit between the display module and the main control module. This avoids static power consumption loss, preventing power consumption in the idle state, reducing overall device power consumption, preventing energy waste, lowering operating costs, and achieving energy saving and emission reduction.

[0034] The switch module closes when the data port of the display module is in signal transmission mode, controlling the circuit between the display module and the main control module to conduct, enabling data signal transmission between the two modules, thereby realizing the communication function between them. Therefore, the communication circuit provided in this application not only avoids static power consumption in the signal idle state to reduce the overall power consumption of the device, but also enables the circuit to communicate during signal transmission. Attached Figure Description

[0035] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or exemplary technologies will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0036] Figure 1 The connection structure block diagram of the communication circuit switching module, display module, and main control module in some embodiments provided in this application is shown.

[0037] Figure 2 The connection structure block diagram of the switching module and optocoupler module of the communication circuit in some embodiments provided in this application is shown.

[0038] Figure 3 The circuit structure diagram of the switching module is shown in some embodiments provided in this application.

[0039] Figure 4 The circuit structure diagram of the optocoupler module is shown in some embodiments provided in this application.

[0040] Figure 5 The diagram shows the specific connection structure of the switch module and the optocoupler module in some embodiments provided in this application. Detailed Implementation

[0041] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0042] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0043] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0044] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. Additionally, in the embodiments of this application, the terms "first" and "second" are used to distinguish identical or similar items that have substantially the same function and effect. Those skilled in the art will understand that the terms "first" and "second" do not limit the quantity or order of execution, and that "first" and "second" do not necessarily imply difference.

[0045] In the description of this application, unless otherwise stated, " / " indicates that the objects before and after it are in an "or" relationship. For example, A / B can mean A or B. "And / or" in this application is merely a description of the relationship between the related objects, indicating that three relationships can exist. For example, A and / or B can represent: A alone, A and B simultaneously, and B alone, where A and B can be singular or plural. Furthermore, in the description of this application, unless otherwise stated, "multiple" means two or more. "At least one of the following" or similar expressions refer to any combination of these items, including any combination of single or plural items. For example, at least one of a, b, or c can represent: a, b, c, ab, ac, bc, or abc, where a, b, and c can be single or multiple.

[0046] Please see Figure 1 This application provides a communication circuit. The communication circuit includes a switch module 10. The switch module 10 is connected to a display module 310. The switch module 10 is also connected to a main control module 320. The switch module 10 is used to disconnect when the data port of the display module 310 is in a signal idle state, so as to control the circuit between the display module 310 and the main control module 320 to be disconnected. The switch module 10 is also used to close when the data port of the display module 310 is in a signal transmission state, so as to control the circuit between the display module 310 and the main control module 320 to be connected.

[0047] In this embodiment, the states corresponding to the data ports of the display module 310 include a signal idle state and a signal transmission state. The signal idle state can be understood as the display module 310 having no data signal transmission requirement, or as the display module 310 being in a state without operation command input, no real-time status update requirement, and only maintaining basic standby functions. The signal transmission state can be understood as the display module 310 transmitting data signals, or as the working state where the display module 310 and the main control module 320 interact with each other to achieve functions such as human-machine interaction, status monitoring, and logic control.

[0048] The switch module 10 is connected between the display module 310 and the main control module 320, forming a signal transmission circuit between them. When the data port of the display module 310 is in an idle state, the switch module 10 disconnects, controlling the circuit between the display module 310 and the main control module 320 to break down, thus preventing communication between them. Consequently, there is no data signal transmission between the display module 310 and the main control module 320. Disconnecting the switch module 10 when the data port of the display module 310 is in an idle state avoids static power consumption loss, preventing static power consumption in the idle state, reducing overall device power consumption, preventing energy waste, lowering operating costs, and achieving energy saving and emission reduction characteristics.

[0049] Furthermore, when the data port of the display module 310 is in signal transmission mode, the switch module 10 closes, controlling the circuit between the display module 310 and the main control module 320 to be connected, enabling data signal transmission between the display module 310 and the main control module 320, thereby realizing the communication function between the display module 310 and the main control module 320. Therefore, the communication circuit provided in this application can not only avoid static power consumption in the signal idle state to reduce the overall power consumption of the device, but also realize the communication function of the circuit in the signal transmission state.

[0050] Please see Figure 2 In some embodiments of this application, the communication circuit further includes an optocoupler module 20. The optocoupler module 20 is connected to the switch module 10. The optocoupler module 20 is also connected to the main control module 320. The optocoupler module 20 is used to isolate and transmit data signals between the switch module 10 and the main control module 320 when the switch module 10 is closed.

[0051] In this embodiment, the switch module 10 is connected between the display module 310 and the optocoupler module 20. The optocoupler module 20 is connected between the switch module 10 and the main control module 320. Thus, the switch module 10 and the optocoupler module 20 form a communication circuit between the display module 310 and the main control module 320. When the data port of the display module 310 is in a signal idle state, the switch module 10 is disconnected, resulting in no data signal transmission between the display module 310 and the optocoupler module 20, thereby preventing communication between the display module 310 and the main control module 320. Disconnecting the switch module 10 when the data port of the display module 310 is in a signal idle state controls the circuit between the display module 310 and the optocoupler module 20, preventing static power consumption loss and avoiding static power consumption in the signal idle state. This reduces the overall power consumption of the device, avoids energy waste, reduces operating costs, and achieves energy saving and emission reduction characteristics.

[0052] Furthermore, when the data port of the display module 310 is in signal transmission mode, the switch module 10 closes to control the circuit between the display module 310 and the optocoupler module 20, enabling data signal transmission between them. This allows the display module 310 to transmit data signals to the main control module 320 via the switch module 10 and the optocoupler module 20. Thus, when the circuit between the display module 310 and the main control module 320 is open, the optocoupler module 20 isolates the data signal transmission between the switch module 10 and the main control module 320, achieving communication between them while meeting the isolation requirements. This improves the anti-interference capability and reliability of the communication circuit, ensuring electrical safety. Therefore, the communication circuit provided in this application not only avoids static power consumption in idle states to reduce overall device power consumption but also enables the circuit's communication function.

[0053] In some embodiments of this application, the display module 310 and the main control module 320 can be microcontrollers, field-programmable gate arrays, or programmable logic controllers, etc., and can also be understood as the display board and main control board of the garment processing equipment. The display module 310 and the main control module 320 can achieve signal interaction through the communication circuit provided in this application, jointly realizing human-machine interaction and automation of the garment processing process, ensuring the intelligent operation of the garment processing equipment.

[0054] Please see Figure 3In some embodiments of this application, the switching module 10 includes a P-type bipolar transistor 110. The base terminal of the P-type bipolar transistor 110 is connected to the display module 310. The emitter terminal of the P-type bipolar transistor 110 is used to acquire a first voltage signal. The collector terminal of the P-type bipolar transistor 110 is connected to the optocoupler module 20. The P-type bipolar transistor 110 is used to be turned off when the data port of the display module 310 is in a signal idle state, and turned on when the data port of the display module 310 is in a signal transmission state.

[0055] In this embodiment, the P-type bipolar transistor 110 is a PNP type transistor. When the data port of the display module 310 is in the signal idle state, the transmitting port (which can also be understood as the TX port) of the display module 310 sends a high-level signal to the base terminal of the P-type bipolar transistor 110, making the voltage signal at the base terminal greater than the first voltage signal at the transmitting terminal, thereby turning off the P-type bipolar transistor 110. The switching module 10 where the P-type bipolar transistor 110 is located is disconnected and does not operate. There is no power consumption superimposed on the P-type bipolar transistor 110, which can avoid static power consumption in the signal idle state.

[0056] When the data port of display module 310 is in signal transmission mode, the TX port of display module 310 sends a low-level signal to the base terminal of P-type bipolar transistor 110, making the voltage signal at the base terminal less than the first voltage signal at the emitter terminal, and the difference between the first voltage signal at the emitter terminal and the voltage signal at the base terminal greater than a threshold, thus turning on P-type bipolar transistor 110. With P-type bipolar transistor 110 turned on, the first voltage signal at the emitter terminal is transmitted to the collector terminal via P-type bipolar transistor 110. The collector terminal of P-type bipolar transistor 110 is connected to optocoupler module 20, turning on optocoupler module 20, thereby enabling data signal transmission between the two. When the data port of display module 310 is in signal transmission mode, the signal sent by the TX port of display module 310 changes from a high-level signal in the signal idle state to a low-level signal, initiating data signal transmission to realize the communication function between display module 310 and main control module 320.

[0057] In some embodiments of this application, the first voltage signal acquired at the emitter terminal of the P-type bipolar transistor 110 is +H5V.

[0058] In some embodiments of this application, the transmit port (also understood as the TX port) of the display module 310 is a serial communication interface that can implement the Universal Asynchronous Receiver Transmitter (UART) protocol, the Serial Peripheral Interface (SPI) protocol, and the Inter-Integrated Circuit (I2C) bus protocol. 2 C) Agreements, etc.

[0059] In some embodiments of this application, the switching module 10 further includes a current-limiting and stabilizing module 120. A first terminal of the current-limiting and stabilizing module 120 is connected to the display module 310. A second terminal of the current-limiting and stabilizing module 120 is connected to the base terminal of the P-type bipolar transistor 110. A third terminal of the current-limiting and stabilizing module 120 is connected to the emitter terminal of the P-type bipolar transistor 110. The current-limiting and stabilizing module 120 is used to stabilize the operating state of the P-type bipolar transistor 110.

[0060] In this embodiment, the current limiting and stabilizing module 120 is connected to the display module 310 and the base terminal of the P-type bipolar transistor 110. It can limit the current in the circuit, adjust the current at the base terminal of the P-type bipolar transistor 110, and set a static bias point to stabilize the working state of the P-type bipolar transistor 110.

[0061] The second terminal of the current-limiting stabilization module 120 is connected to the base terminal of the P-type bipolar transistor 110, and the third terminal of the current-limiting stabilization module 120 is connected to the emitter terminal of the P-type bipolar transistor 110. This allows for the suppression of temperature drift and static operating point drift through a shunt and negative feedback mechanism, dynamically optimizing and stabilizing the operating state of the P-type bipolar transistor 110. Therefore, the current-limiting stabilization module 120 ensures the normal operation of the P-type bipolar transistor 110, ensuring that it is turned off when the data port of the display module 310 is in a signal idle state and turned on when the data port of the display module 310 is in a signal transmission state.

[0062] In some embodiments of this application, the switching module 10 further includes a current limiting module 130. One end of the current limiting module 130 is connected to the collector terminal of the P-type bipolar transistor 110. The other end of the current limiting module 130 is connected to the optocoupler module 20. The current limiting module 130 is used to limit the current signal at the collector terminal of the P-type bipolar transistor 110.

[0063] In this embodiment, the current limiting module 130 is connected between the collector terminal of the P-type bipolar transistor 110 and the optocoupler module 20, so that when the P-type bipolar transistor 110 is turned on, it limits the current in the circuit, protects the P-type bipolar transistor 110 and the optocoupler module 20, and works with the current limiting and stabilizing module 120 to stabilize the working state of the P-type bipolar transistor 110.

[0064] Please see Figure 4 In some embodiments of this application, the current limiting and stabilizing module 120 includes a first resistor 121 and a second resistor 122. One end of the first resistor 121 is connected to the display module 310. The other end of the first resistor 121 is connected to the base terminal of the P-type bipolar transistor 110. One end of the second resistor 122 is connected to the other end of the first resistor 121. The other end of the second resistor 122 is connected to the emitter terminal of the P-type bipolar transistor 110.

[0065] In this embodiment, the first resistor 121 is connected to the display module 310 and the base terminal of the P-type bipolar transistor 110. It can limit the current in the circuit, adjust the current at the base terminal of the P-type bipolar transistor 110, and set a static bias point to stabilize the working state of the P-type bipolar transistor 110.

[0066] The common terminal of the first resistor 121 and the second resistor 122 is connected to the base terminal of the P-type bipolar transistor 110. The second resistor 122 is connected between the base terminal and the emitter terminal of the P-type bipolar transistor 110, and can suppress temperature drift and static operating point drift through shunt and negative feedback mechanisms, dynamically optimizing and stabilizing the operating state of the P-type bipolar transistor 110. Thus, through the first resistor 121 and the second resistor 122, the normal operation of the P-type bipolar transistor 110 can be ensured, so that the P-type bipolar transistor 110 is turned off when the data port of the display module 310 is in the signal idle state, and turned on when the data port of the display module 310 is in the signal transmission state.

[0067] In some embodiments of this application, the current limiting module 130 includes a third resistor 131. One end of the third resistor 131 is connected to the collector terminal of the P-type bipolar transistor 110. The other end of the third resistor 131 is connected to the optocoupler module 20.

[0068] In this embodiment, the third resistor 131 is connected between the collector terminal of the P-type bipolar transistor 110 and the optocoupler module 20. This resistor limits the current in the circuit when the P-type bipolar transistor 110 is turned on, preventing excessive current at the collector terminal from damaging the optocoupler module 20 and thus providing protection. Simultaneously, the third resistor 131, the first resistor 121, and the second resistor 122 are respectively connected to the base, emitter, and collector terminals of the P-type bipolar transistor 110. They cooperate to stabilize the operating state of the P-type bipolar transistor 110, ensuring that it is turned off when the data port of the display module 310 is in a signal idle state and turned on when the data port of the display module 310 is in a signal transmission state.

[0069] In some embodiments of this application, the optocoupler module 20 includes an optocoupler 210. A first input terminal of the optocoupler 210 is connected to the switch module 10. A second input terminal of the optocoupler 210 is connected to a first reference ground PGND. A first output terminal of the optocoupler 210 is connected to the main control module 320. A second output terminal of the optocoupler 210 is connected to a second reference ground GND.

[0070] In this embodiment, when the switch module 10 is turned on, the input LED between the first and second input terminals of the optocoupler 210 is turned on, converting the input current at the first input terminal of the optocoupler 210 into an optical signal. Subsequently, the output phototransistor between the first and second output terminals of the optocoupler 210 receives the optical signal from the input LED and turns on, thus turning on the optocoupler 210.

[0071] When the switch module 10 is off, the input terminal LED between the first and second input terminals of the optocoupler 210 is not conducting, thus preventing the optocoupler 210 from conducting. The second input terminal of the optocoupler 210 is connected to the first reference ground PGND, and the second output terminal of the optocoupler 210 is connected to the second reference ground GND, achieving opto-isolation between the input and output terminals. This isolates communication between different reference grounds and improves anti-interference capability.

[0072] In some embodiments of this application, one end of the third resistor 131 is connected to the collector terminal of the P-type bipolar transistor 110. The other end of the third resistor 131 is connected to the first input terminal of the optocoupler 210. When the display module 310 sends a high-level signal to the first resistor 121, and the signal reaches the base terminal of the P-type bipolar transistor 110 through the first resistor 121, the voltage signal at the base terminal is greater than the first voltage signal at the emitter terminal, thereby causing the P-type bipolar transistor 110 to turn off. Consequently, the P-type bipolar transistor 110 is turned off, preventing the input terminal light-emitting diode between the first and second input terminals of the optocoupler 210 from conducting. Therefore, the output terminal phototransistor between the first and second output terminals of the optocoupler 210 cannot receive the light signal from the input terminal light-emitting diode and does not conduct, preventing the voltage at the first output terminal of the optocoupler 210 from being pulled down to the second reference ground GND, thus maintaining a high-level output signal to the main control module 320.

[0073] When the display module 310 sends a low-level signal to the first resistor 121, the signal passes through the first resistor 121 and reaches the base terminal of the P-type bipolar transistor 110. This causes the voltage signal at the base terminal to be less than the first voltage signal at the transmitting terminal, and the difference between the first voltage signal at the transmitting terminal and the voltage signal at the base terminal to be greater than a threshold, thus turning on the P-type bipolar transistor 110. With the P-type bipolar transistor 110 on, the first voltage signal at the transmitting terminal, after passing through the P-type bipolar transistor 110, is transmitted as current to the third resistor 131. After current limiting by the third resistor 131, the signal reaches the first input terminal of the optocoupler 210, turning on the light-emitting diode at the input terminal of the optocoupler 210 and converting the input current at the first input terminal of the optocoupler 210 into a light signal. Subsequently, the phototransistor at the output terminal between the first and second output terminals of the optocoupler 210 receives the light signal from the input terminal light-emitting diode and turns on, thus turning on the optocoupler 210. The output phototransistor between the first and second output terminals of the optocoupler 210 directly pulls the voltage of the first output terminal down to the second reference ground GND, completing the transmission of data 0. The high-level signal sent by the display module 310 transitions to a low-level signal, initiating data signal transmission to realize the communication function between the display module 310 and the main control module 320.

[0074] In some embodiments of this application, the optocoupler module 20 further includes a first protection module 220 and / or a filter and voltage regulator module 230. One end of the first protection module 220 is connected to the first input terminal of the optocoupler 210. The other end of the first protection module 220 is connected to the second input terminal of the optocoupler 210. The first protection module 220 is used to protect the light-emitting diode at the input terminal of the optocoupler 210.

[0075] The first terminal of the filter and voltage regulator module 230 is connected to the first output terminal of the optocoupler 210. The second terminal of the filter and voltage regulator module 230 is connected to the second output terminal of the optocoupler 210. The third terminal of the filter and voltage regulator module 230 is connected to the main control module 320. The filter and voltage regulator module 230 is used to filter and regulate the output voltage signal of the optocoupler 210.

[0076] In this embodiment, the first protection module 220 is connected in parallel between the first input terminal and the second input terminal of the optocoupler 210 to protect the light-emitting diode at the input terminal of the optocoupler 210, so as to ensure the normal operation of the light-emitting diode at the input terminal.

[0077] The signal at the first output terminal of the optocoupler 210 is filtered and regulated by the filtering and voltage regulating module 230 before being output to the main control module 320. Furthermore, the signal filtered by the filtering and voltage regulating module 230 is free of noise and is more stable and continuous, which facilitates more accurate communication between the display module 310 and the main control module 320, thus improving communication accuracy.

[0078] In some embodiments of this application, the optocoupler module 20 further includes a pull-up module 240 and / or a second protection module 250. One end of the pull-up module 240 is used to acquire a second voltage signal. The other end of the pull-up module 240 is connected to the first output terminal of the optocoupler 210. The pull-up module 240 is used to pull up the voltage signal at the first output terminal of the optocoupler 210.

[0079] One end of the second protection module 250 is connected to the second output terminal of the optocoupler 210. The other end of the second protection module 250 is connected to the first output terminal of the optocoupler 210. The second protection module 250 is used to protect the phototransistor at the output terminal of the optocoupler 210.

[0080] In this embodiment, one end of the pull-up module 240 is connected to the second voltage signal, and the other end is connected to the first output terminal of the optocoupler 210, used to pull up the voltage signal at the first output terminal of the optocoupler 210. When the phototransistor at the output terminal of the optocoupler 210 is not conducting, the pull-up module 240 can make the voltage at the first output terminal of the optocoupler 210 a high-level signal, providing a clear high-level signal to the main control module 320.

[0081] When the phototransistor at the output terminal of the optocoupler 210 is turned on, the voltage signal at the first output terminal of the optocoupler 210 is directly pulled down to the second reference ground GND, providing a low-level signal to the main control module 320. The high-level signal sent by the display module 310 transitions to a low-level signal, initiating data signal transmission, which in turn causes the high-level signal received by the main control module 320 to transition to a low-level signal, thus realizing the communication function between the display module 310 and the main control module 320.

[0082] Furthermore, the pull-up module 240 can also limit the current when the phototransistor at the output end of the optocoupler 210 is turned on, so as to avoid the optocoupler 210 being damaged by excessive current, and thus enable the optocoupler 210 to achieve electrical isolation and signal transmission more stably.

[0083] The second protection module 250 is connected in parallel between the first and second output terminals of the optocoupler 210 to protect the phototransistor at the output terminal of the optocoupler 210, so as to ensure the normal operation of the phototransistor at the output terminal.

[0084] In some embodiments of this application, the second voltage signal connected to one end of the pull-up module 240 can be +5V.

[0085] Please see Figure 5 In some embodiments of this application, the first protection module 220 includes a first capacitor 221 and a fourth resistor 222. One end of the first capacitor 221 is connected to the first input terminal of the optocoupler 210. The other end of the first capacitor 221 is connected to the second input terminal of the optocoupler 210 and is connected to the first reference ground PGND. One end of the fourth resistor 222 is connected to the first input terminal of the optocoupler 210. The other end of the fourth resistor 222 is connected to the second input terminal of the optocoupler 210 and is connected to the first reference ground PGND.

[0086] In this embodiment, the first capacitor 221 is connected between the first input terminal and the second input terminal of the optocoupler 210. Through the energy storage and release function of the first capacitor 221, the input current can be smoothed, the signal transmission characteristics optimized, interference suppressed, and circuit stability ensured.

[0087] The fourth resistor 222 is connected between the first and second input terminals of the optocoupler 210, acting as a current divider to prevent damage to the LED at the input terminal of the optocoupler 210 due to excessive current, thus protecting the LED at the input terminal of the optocoupler 210. Furthermore, when the voltage at the first input terminal of the optocoupler 210 fluctuates, the fourth resistor 222 achieves a voltage divider effect, suppressing voltage changes across the LED at the input terminal of the optocoupler 210, stabilizing the operating current, and ensuring the current stability and signal integrity at the input terminal of the optocoupler 210.

[0088] In some embodiments of this application, the filter and voltage regulator module 230 includes a fifth resistor 231 and a second capacitor 232. One end of the fifth resistor 231 is connected to the first output terminal of the optocoupler 210. The other end of the fifth resistor 231 is connected to one end of the second capacitor 232 and is also connected to the main control module 320. The other end of the second capacitor 232 is connected to the second output terminal of the optocoupler 210 and is connected to the second reference ground GND.

[0089] In this embodiment, the fifth resistor 231 and the second capacitor 232 form an RC filter circuit, which filters and stabilizes the signal at the first output terminal of the optocoupler 210 before outputting it to the main control module 320. Furthermore, the signal filtered by the filtering and stabilizing module 230 is free of noise and is more stable and continuous, which facilitates more accurate communication between the display module 310 and the main control module 320, thus improving communication accuracy.

[0090] In some embodiments of this application, the pull-up module 240 includes a sixth resistor 241. One end of the sixth resistor 241 is connected to the second voltage signal. The other end of the sixth resistor 241 is connected to the first output terminal of the optocoupler 210 and to one end of the fifth resistor 231.

[0091] In this embodiment, one end of the sixth resistor 241 is connected to the second voltage signal, and the other end is connected to the first output terminal of the optocoupler 210, which is used to pull up the voltage signal at the first output terminal of the optocoupler 210. When the phototransistor at the output terminal of the optocoupler 210 is not conducting, the pull-up via the sixth resistor 241 can make the voltage at the first output terminal of the optocoupler 210 a high-level signal, providing a clear high-level signal to the main control module 320.

[0092] When the phototransistor at the output terminal of the optocoupler 210 is turned on, the voltage signal at the first output terminal of the optocoupler 210 is directly pulled down to the second reference ground GND, providing a low-level signal to the main control module 320. The high-level signal sent by the display module 310 transitions to a low-level signal, initiating data signal transmission, which in turn causes the high-level signal received by the main control module 320 to transition to a low-level signal, thus realizing the communication function between the display module 310 and the main control module 320.

[0093] Furthermore, the sixth resistor 241 can also limit the current when the phototransistor at the output terminal of the optocoupler 210 is turned on, so as to avoid the optocoupler 210 being damaged by excessive current, and thus enable the optocoupler 210 to achieve electrical isolation and signal transmission more stably.

[0094] In some embodiments of this application, the second protection module 250 includes a diode 251. The anode of the diode 251 is connected to the second output terminal of the optocoupler 210 and to the second reference ground GND. The cathode of the diode 251 is connected to the first output terminal of the optocoupler 210.

[0095] In this embodiment, diode 251 is connected between the second output terminal and the first input terminal of optocoupler 210. It can protect the phototransistor at the output terminal of optocoupler 210 from damage by reverse voltage, thus protecting optocoupler 210, ensuring circuit stability, and ensuring normal operation of the phototransistor at the output terminal.

[0096] In some embodiments of this application, the number and performance parameters of resistors in the current limiting and stabilizing module 120, the current limiting module 130, the first protection module 220, the filter and voltage regulating module 230, and the pull-up module 240 can be adjusted according to actual application scenarios to achieve the functions of each module in this application. The amplitudes of the first voltage signal and the second voltage signal can be set according to actual application scenarios to provide the required voltage to the components.

[0097] This application provides a garment processing device, including the communication circuit described in the above embodiments.

[0098] In this embodiment, the clothing processing equipment can be a washing machine, a drying machine, or a washer-dryer combo that can wash and dry clothes. The clothing processing equipment can be installed directly on the floor or a tabletop, or it can be wall-mounted or countertop.

[0099] In some embodiments of this application, the clothing processing device provided can be a small washing machine. The communication circuit provided in this application can meet the isolation requirements between the display module 310 and the main control module 320, isolating communication between different reference grounds, improving anti-interference capabilities, and satisfying the isolation requirements of a small washing machine.

[0100] Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the above-described division of functional units and modules is merely an example. In practical applications, the above functions can be assigned to different functional units and modules as needed, that is, the internal structure of the device can be divided into different functional units or modules to complete all or part of the functions described above. The functional units and modules in the embodiments can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated unit can be implemented in hardware or as a software functional unit. Furthermore, the specific names of the functional units and modules are only for easy differentiation and are not intended to limit the scope of protection of this application.

[0101] In the above embodiments, the descriptions of each embodiment have different focuses. Parts not described in detail in a particular embodiment can be found in the relevant descriptions of other embodiments. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementations should not be considered beyond the scope of this application.

[0102] In the embodiments provided in this application, the division of modules or units is merely a logical functional division. In actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the displayed or discussed mutual couplings, direct couplings, or communication connections may be indirect couplings or communication connections through some interfaces, devices, or units, and may be electrical, mechanical, or other forms.

[0103] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs. Furthermore, the functional units in the various embodiments of this application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0104] If the integrated module / unit is implemented as a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. The computer program includes computer program code, which can be in the form of source code, object code, executable files, or certain intermediate forms. The computer-readable medium can include: any entity or device capable of carrying the computer program code, recording media, USB flash drives, portable hard drives, magnetic disks, optical disks, computer memory, read-only memory (ROM), random access memory (RAM), electrical carrier signals, telecommunication signals, and software distribution media, etc. It should be noted that the content included in the computer-readable medium can be appropriately added or removed according to the requirements of legislation and patent practice in the jurisdiction. For example, in some jurisdictions, according to legislation and patent practice, computer-readable media do not include electrical carrier signals and telecommunication signals.

[0105] The above-described embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application, and should all be included within the protection scope of this application.

Claims

1. A communication circuit, characterized in that, include: A switch module (10) is connected to a display module (310), and the switch module (10) is also connected to a main control module (320); The switch module (10) is used to disconnect when the data port of the display module (310) is in a signal idle state, so as to control the circuit between the display module (310) and the main control module (320) to be disconnected; The switch module (10) is also used to close when the data port of the display module (310) is in the signal transmission state, so as to control the circuit between the display module (310) and the main control module (320).

2. The communication circuit as described in claim 1, characterized in that, The communication circuit also includes: The optocoupler module (20) is connected to the switch module (10) and is also connected to the main control module (320). The optocoupler module (20) is used to isolate and transmit data signals between the switch module (10) and the main control module (320) when the switch module (10) is closed.

3. The communication circuit as described in claim 2, characterized in that, The switching module (10) includes: A P-type bipolar transistor (110) is used to acquire a first voltage signal. The base terminal of the P-type bipolar transistor (110) is connected to the display module (310). The emitter terminal of the P-type bipolar transistor (110) is connected to the optocoupler module (20). The P-type bipolar transistor (110) is turned off when the data port of the display module (310) is in the signal idle state, and turned on when the data port of the display module (310) is in the signal transmission state.

4. The communication circuit as described in claim 3, characterized in that, The switching module (10) also includes: A current limiting and stabilizing module (120) is provided. The first end of the current limiting and stabilizing module (120) is connected to the display module (310), the second end of the current limiting and stabilizing module (120) is connected to the base terminal of the P-type bipolar transistor (110), and the third end of the current limiting and stabilizing module (120) is connected to the emitter terminal of the P-type bipolar transistor (110). The current limiting and stabilizing module (120) is used to stabilize the working state of the P-type bipolar transistor (110).

5. The communication circuit as described in claim 3, characterized in that, The switching module (10) also includes: A current limiting module (130) is provided, one end of which is connected to the collector terminal of the P-type bipolar transistor (110), and the other end of which is connected to the optocoupler module (20). The current limiting module (130) is used to limit the current signal at the collector terminal of the P-type bipolar transistor (110).

6. The communication circuit as described in claim 4, characterized in that, The current limiting and stabilizing module (120) includes: A first resistor (121) is connected at one end to the display module (310) and at the other end to the base terminal of the P-type bipolar transistor (110). The second resistor (122) has one end connected to the other end of the first resistor (121) and the other end connected to the emitter terminal of the P-type bipolar transistor (110).

7. The communication circuit as described in claim 5, characterized in that, The current limiting module (130) includes: The third resistor (131) is connected at one end to the collector terminal of the P-type bipolar transistor (110) and at the other end to the optocoupler module (20).

8. The communication circuit as described in any one of claims 2 to 7, characterized in that, The optocoupler module (20) includes: An optocoupler (210) is provided, wherein the first input terminal of the optocoupler (210) is connected to the switch module (10), the second input terminal of the optocoupler (210) is connected to the first reference ground, the first output terminal of the optocoupler (210) is connected to the main control module (320), and the second output terminal of the optocoupler (210) is connected to the second reference ground.

9. The communication circuit as described in claim 8, characterized in that, The optocoupler module (20) further includes a first protection module (220) and / or a filtering and voltage regulation module (230); One end of the first protection module (220) is connected to the first input terminal of the optocoupler (210), and the other end of the first protection module (220) is connected to the second input terminal of the optocoupler (210). The first protection module (220) is used to protect the light-emitting diode at the input terminal of the optocoupler (210). The first end of the filtering and voltage regulation module (230) is connected to the first output end of the optocoupler (210), the second end of the filtering and voltage regulation module (230) is connected to the second output end of the optocoupler (210), and the third end of the filtering and voltage regulation module (230) is connected to the main control module (320). The filtering and voltage regulation module (230) is used to filter and regulate the output voltage signal of the optocoupler (210).

10. The communication circuit as described in claim 8, characterized in that, The optocoupler module (20) further includes a pull-up module (240) and / or a second protection module (250); One end of the pull-up module (240) is used to acquire a second voltage signal, and the other end of the pull-up module (240) is connected to the first output terminal of the optocoupler (210). The pull-up module (240) is used to pull up the voltage signal of the first output terminal of the optocoupler (210). One end of the second protection module (250) is connected to the second output terminal of the optocoupler (210), and the other end of the second protection module (250) is connected to the first output terminal of the optocoupler (210). The second protection module (250) is used to protect the phototransistor at the output terminal of the optocoupler (210).

11. A garment processing device, characterized in that, The communication circuit includes any one of claims 1 to 10.

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