Air conditioning system, standby control method, operation control device, and storage medium

Abstract

The present application discloses an air conditioning system, a standby control method, an operation control device, and a storage medium. The air conditioning system comprises an indoor unit and an outdoor unit. The outdoor unit comprises an outdoor controller (200), a power supply access seat (100), an intelligent power module (400), and a power supply control module (300); the intelligent power module (400) comprises a power supply input port connected to the power supply access seat (100), a first power supply port (410) used for supplying power to the outdoor controller, and a second power supply port (420) used for supplying power to a primary load (500); and the power supply control module (300) controls, on the basis of a control signal of the outdoor controller (200), the second power supply port (420) to supply power to the primary load (500). The indoor unit comprises a power supply interface (700) connected to the power supply access seat to supply power to the indoor unit, and an indoor controller (600) communicationally connected to the outdoor controller (200), so that the outdoor controller (200) sends a standby control signal to the power supply control module (300) on the basis of a communication signal sent by the indoor controller (600).

Description

Air conditioning system, standby control method, operation control device and storage medium

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority to Chinese patent application number 202410134860.8, filed on January 30, 2024, entitled “AIR CONDITIONING SYSTEM, STANDBY CONTROL METHOD, OPERATION CONTROL DEVICE AND STORAGE MEDIUM,” the entire contents of which are incorporated herein by reference. Technical Field

[0003] The present application relates to the technical field of air conditioning, and in particular to an air conditioning system, a standby control method, an operation control device, and a storage medium. Background Art

[0004] Currently, an air conditioning system includes an indoor unit and an outdoor unit. The indoor unit usually provides power to the outdoor unit. Therefore, the indoor unit usually cuts off the power to the outdoor unit to completely power off the outdoor unit, thereby reducing the standby power consumption of the air conditioning system.

[0005] Some air conditioning systems are restricted to drawing power from the outside. To achieve low-power mode, the indoor unit must connect the live and neutral wires to the outdoor unit's terminal block for power. The indoor unit then uses the power cord to power the outdoor unit's load. The indoor unit can disconnect the outdoor unit's power cord by cutting the power cord. However, since the live wire must carry the load current of the entire air conditioning system, and the power cord must carry the load current of the outdoor unit's load, high requirements are placed on both the live and power wires, leading to high cable costs. Therefore, achieving low-cost standby control while drawing power from the outside has become an urgent issue.

[0006] Summary of the Invention

[0007] The purpose of the present application is to solve at least one of the technical problems existing in the prior art, and therefore provides an air-conditioning system, a standby control method, an operation control device and a storage medium.

[0008] In a first aspect, an embodiment of the present application provides an air conditioning system, comprising:

[0009] An outdoor unit comprising an outdoor controller, a power supply socket for connecting to an external power source, an intelligent power module for converting the external power source, and a power control module connected to the outdoor controller; the intelligent power module comprising a power input port connected to the power supply socket, a first power supply port for supplying power to the outdoor controller, and a second power supply port for supplying power to a primary load; the power control module being connected to the intelligent power module so that the power control module controls the second power supply port to supply power to the primary load according to a control signal from the outdoor controller; and

[0010] The indoor unit includes a power supply interface connected to the power supply socket to power the indoor unit, and an indoor controller communicatively connected to the outdoor controller, so that the outdoor controller sends a standby control signal to the power control module according to the communication signal sent by the indoor controller.

[0011] In the air-conditioning system provided in an embodiment of the present application, the outdoor unit further includes a secondary load, and the secondary load is respectively connected to the first power supply port and the outdoor controller.

[0012] In the air-conditioning system provided in an embodiment of the present application, the power control module includes a first switch tube and a second switch tube, the control pin of the first switch tube is connected to the outdoor controller, the first switch pin of the first switch tube is grounded, the first switch pin of the second switch tube is connected to the second power supply port, and the second power supply port is simultaneously connected to the control pin and the second switch pin of the second switch tube, as well as the second switch pin of the first switch tube.

[0013] In the air-conditioning system provided in an embodiment of the present application, the air-conditioning system also includes a current loop communication module, the current loop communication module includes an indoor communication module and an outdoor communication module, the indoor communication module is connected to the indoor controller, and the outdoor communication module is connected to the outdoor controller.

[0014] In the air-conditioning system provided in an embodiment of the present application, the outdoor communication module includes a first optocoupler device and an outdoor communication switch tube, the positive input end of the first optocoupler device is connected to the first switch pin of the outdoor communication switch tube and is also connected to the first power supply port, the control pin of the outdoor communication switch tube is connected to the outdoor controller, and the second switch pin of the outdoor communication switch tube is grounded.

[0015] In the air-conditioning system provided in an embodiment of the present application, the indoor communication module includes a second optocoupler device and an indoor communication switch tube, the positive input end of the second optocoupler device is connected to the first switch pin of the indoor communication switch tube and is also connected to a DC power supply module for converting an external power supply into a DC power supply, the control pin of the indoor communication switch tube is connected to the indoor controller, the second switch pin of the indoor communication switch tube is grounded, and the DC power supply module is connected to the power supply interface.

[0016] In a second aspect, an embodiment of the present application provides a standby control method for an air-conditioning system, which is applied to the air-conditioning system according to the embodiment of the first aspect. The standby control method includes:

[0017] In response to the standby signal, the power loads in the indoor unit except the indoor communication module are controlled to shut down, and a standby instruction signal is sent to the outdoor controller, so that the outdoor controller sends a standby control signal to the power control module to stop the second power supply port from supplying power to the primary load.

[0018] In the standby control method provided in an embodiment of the present application, after the indoor controller sends a standby instruction signal to the outdoor controller, the method includes:

[0019] In response to the standby response signal sent by the outdoor unit, a cutoff signal for closing the indoor communication switch tube is provided to the control pin of the indoor communication switch tube.

[0020] In the standby control method provided in the embodiment of the present application, the standby control method further includes:

[0021] In response to the wake-up signal, the operation of the power load in the indoor unit is controlled according to the wake-up signal, and a wake-up instruction signal is sent to the outdoor controller, so that the outdoor controller sends a wake-up control signal to the power control module for controlling the second power supply port to supply power to the primary load.

[0022] In the standby control method provided in an embodiment of the present application, responding to a wake-up signal, controlling the operation of the electrical load in the indoor unit according to the wake-up signal, and sending a wake-up instruction signal to the outdoor controller include:

[0023] In response to a wake-up signal, controlling the operation of the electrical load in the indoor unit according to the wake-up signal, and providing a turn-on signal for turning on the indoor communication switch tube to the control pin of the indoor communication switch tube;

[0024] A wake-up command signal is sent to the outdoor controller via the indoor communication module.

[0025] In a third aspect, an embodiment of the present application provides a standby control method for an air-conditioning system, which is applied to the air-conditioning system according to the embodiment of the first aspect, and the standby control method includes:

[0026] In response to the standby instruction signal sent by the indoor controller, a standby control signal for stopping the second power supply port from supplying power to the primary load is sent to the power control module, and the standby mode is operated.

[0027] In the standby control method provided in the embodiment of the present application, a standby response signal is returned to the indoor controller in response to the standby instruction signal sent by the indoor controller.

[0028] In the standby control method provided in the embodiment of the present application, the standby control method further includes:

[0029] In response to the wake-up instruction signal sent by the indoor controller, a wake-up control signal for controlling the second power supply port to supply power to the primary load is sent to the power control module.

[0030] In the standby control method provided in an embodiment of the present application, after sending a wake-up control signal for controlling the second power supply port to supply power to the primary load to the power control module, a wake-up response signal is returned to the indoor controller.

[0031] In fourth aspect, an embodiment of the present application provides an operation control device, comprising a memory, a processor, and a computer program stored on the memory and executable on the processor, wherein the processor executes the program to implement the standby control method for the air-conditioning system as described in the embodiment of the second aspect or the standby control method for the air-conditioning system as described in the embodiment of the third aspect.

[0032] In the fifth aspect, an embodiment of the present application provides a computer-readable storage medium, which stores computer-executable instructions, and the computer-executable instructions are used to enable a computer to execute the standby control method of the air-conditioning system as described in the embodiment of the second aspect or the standby control method of the air-conditioning system as described in the embodiment of the third aspect.

[0033] Other features and advantages of the present application will be described in the following description, and in part will become apparent from the description, or will be understood by practicing the present application. The purposes and other advantages of the present application can be achieved and obtained through the structures particularly pointed out in the description, claims and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] The accompanying drawings are used to provide a further understanding of the technical solution of the present application and constitute a part of the specification. Together with the embodiments of the present application, they are used to explain the technical solution of the present application and do not constitute a limitation on the technical solution of the present application.

[0035] The present application is further described below with reference to the accompanying drawings and embodiments;

[0036] FIG1 is a schematic structural diagram of an air conditioning system provided by an embodiment of the present application;

[0037] FIG2 is a structural diagram of an air conditioning system provided by another embodiment of the present application;

[0038] FIG3 is a structural diagram of an air conditioning system provided by another embodiment of the present application;

[0039] FIG4 is a circuit diagram of a power control module provided in an embodiment of the present application;

[0040] FIG5 is a structural diagram of a current loop communication module of an air conditioning system provided by an embodiment of the present application;

[0041] FIG6 is a circuit diagram of a current loop communication module of an air conditioning system provided by an embodiment of the present application;

[0042] FIG7 is a partial circuit diagram of an intelligent power module of an air conditioning system provided by an embodiment of the present application;

[0043] FIG8 is a flow chart of a standby control method for an air conditioning system according to an embodiment of the present application;

[0044] FIG9 is a flowchart of a wake-up control method for an air-conditioning system provided by an embodiment of the present application;

[0045] FIG10 is a flowchart of a wake-up control method for an air conditioning system provided by another embodiment of the present application;

[0046] FIG11 is a flow chart of a control method of an outdoor controller provided in an embodiment of the present application;

[0047] FIG12 is a flowchart of a standby control method for an indoor unit provided by an embodiment of the present application;

[0048] FIG13 is a flow chart of a standby control method for an outdoor unit provided in an embodiment of the present application; and

[0049] FIG14 is a schematic structural diagram of an operation control device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0050] This section will describe the specific embodiments of the present application in detail. The preferred embodiments of the present application are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and overall technical solution of the present application, but it cannot be understood as a limitation on the scope of protection of the present application.

[0051] In the description of this application, "several" means one or more, "more" means more than two, "greater than," "less than," and "exceed" are understood to exclude the number itself, while "above," "below," and "within" are understood to include the number itself. "at least one" means one or more, "at least one of the following" and similar expressions refer to any combination of these items, including any combination of single or plural items. The use of "first" and "second" in the description is solely for the purpose of distinguishing technical features and is not to be construed as indicating or implying relative importance, implicitly indicating the number of the indicated technical features, or implicitly indicating the order of the indicated technical features.

[0052] It should be noted that the terms "dispose," "install," and "connect" in the embodiments of this application should be interpreted broadly. Those skilled in the art can reasonably determine the specific meanings of these terms in the embodiments of this application based on the specific content of the technical solution. For example, the term "connect" can refer to mechanical connection, electrical connection, or communication; it can refer to direct connection or indirect connection through an intermediary.

[0053] It should be noted that the technical features involved in the various embodiments of the present application described below can be combined with each other as long as they do not conflict with each other.

[0054] In the description of this application, unless otherwise clearly defined, terms such as setting, installing, and connecting should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in this application based on the specific content of the technical solution.

[0055] At present, the air-conditioning system includes an indoor unit and an outdoor unit. The air-conditioning system generally provides power to the outdoor unit by the indoor unit. Therefore, the indoor unit is usually used to cut off the power supply to the outdoor unit so that the outdoor unit is completely powered off, thereby achieving the effect of reducing the standby power consumption of the air-conditioning system. However, for the air-conditioning system using outdoor power supply, in order to achieve the low power consumption mode of the air-conditioning system, the indoor unit needs to use a zero-live connection line to connect to the terminal board of the outdoor unit to obtain power, and then the indoor unit supplies power to the load of the outdoor unit through the power line, so that the indoor unit can cut off the power supply of the outdoor unit by cutting off the power line. This power supply method requires the live wire to bear the load current of the entire air-conditioning system, and has high requirements for the live wire, resulting in high wire cost.

[0056] Based on this, the embodiments of the present application provide an air-conditioning system, a standby control method, an operation control device and a storage medium. When the air-conditioning system draws power from the outdoor side, the intelligent power module draws power through the power supply socket. The intelligent power module has two power outputs, one power output supplies power to the outdoor controller through the first power supply port, and the other power output supplies power to the first-level load through the second power supply port. The outdoor controller can control whether the second power supply port can supply power to the first-level load through the power control module, thereby controlling the power off of the first-level load, and thus realizing standby control of the outdoor unit. On the indoor side of the air-conditioning system, the indoor unit can obtain power through the power supply interface and the power supply socket of the outdoor unit. At the same time, a communication connection is established between the indoor unit and the outdoor unit, and the power control module can be driven according to the communication signal sent by the indoor controller, thereby flexibly realizing standby control. Therefore, the air-conditioning system provided by the embodiment of the present application optimizes the wiring method of the indoor unit and the outdoor unit. When power is taken from the outdoor side, there is no need to realize standby control by controlling the power lines between the indoor and outdoor sides, and the live wire led from the outdoor power supply socket to the indoor side only needs to bear the load current of the indoor unit, which reduces the demand for wires, thereby reducing the wire cost of the air-conditioning system, and thus realizing low-cost standby control when power is taken from the outdoor side.

[0057] The embodiments of the present application are further described below with reference to the accompanying drawings.

[0058] Referring to Figure 1, Figure 1 is a structural diagram of an air-conditioning system provided in an embodiment of the present application. It can be understood that the air-conditioning system includes an outdoor unit and an indoor unit. When power is taken from the outdoor side, the outdoor unit includes an outdoor controller 200, a power supply socket 100, an intelligent power module 400, a power control module 300, and a primary load 500. The intelligent power module 400 includes a power input port, a first power supply port 410, and a second power supply port 420. The intelligent power module 400 has the function of converting the external power obtained from the power input port into a DC power supply, and can provide the converted DC power supply to the first power supply port 410 and the second power supply port 420 respectively. Specifically, the first power supply port 410 is used to supply power to the outdoor controller, and the second power supply port 420 is used to supply power to the primary load. The power control module 300 is connected to the second power supply port 420 and the outdoor controller 200 respectively. The power control module 300 is used to control the conduction and cutoff of the second power supply port 420 in the intelligent power module 400. Therefore, the power control module 300 can control the conduction and cutoff of the second power supply port 420 according to the signal sent by the outdoor controller 200, and then control whether the second power supply port 420 can supply power to the primary load 500, thereby realizing standby control of the primary load 500.

[0059] If a problem occurs with the external power supply, simply disconnecting the power socket 100 will disconnect the external power supply to the intelligent power module 400, preventing damage to the intelligent power module 400 and extending the service life of the intelligent power module 400. The intelligent power module 400 is used to convert the external power supply into the voltage required for the outdoor unit load, and then output it through the first power supply port 410 and the second power supply port 420.

[0060] The indoor unit includes a power supply interface 700, an indoor controller 600 and an indoor load. The power supply interface 700 is connected to the indoor controller 600, the indoor load and the power supply socket 100 respectively. The power supply interface 700 is used to connect to the power supply socket 100 of the outdoor unit to obtain power and transmit the power to the indoor load and the indoor controller 600. The indoor controller 600 is connected to the outdoor controller 200 in communication, so that the outdoor unit can control the power control module 300 according to the communication signal sent by the indoor controller 600, and flexibly realize the standby control of the outdoor unit. Therefore, the live wire drawn from the power supply socket 100 on the outdoor side to the indoor side only needs to bear the load current of the indoor unit. At the same time, there is no need to realize standby control by controlling the power lines on the indoor and outdoor sides. The demand for wires is reduced, which reduces the wire cost of the air-conditioning system, and thus can realize low-cost standby control when taking power from the outdoor side.

[0061] It should be noted that the external power supply is transmitted to the indoor unit and the outdoor unit through the power supply socket 100. If there is a problem with the external power supply, it is only necessary to disconnect the power supply socket 100 to disconnect the external power supply to the outdoor unit and the indoor unit, thereby avoiding damage to the outdoor unit and the indoor unit and increasing the service life of the outdoor unit and the indoor unit.

[0062] It can be understood that through the communication connection between the indoor controller 600 and the outdoor controller 200, the user only needs to control the signal sent by the indoor controller 600 to control the working state of the outdoor controller 200, and then control the working state of the power control module 300, wherein the communication connection method can be signal wave communication or current loop communication.

[0063] It should be noted that in a multi-split air-conditioning system, the indoor controller 600 is directly connected to the outdoor controller 200 for communication, and there is no need to control the power lines between the indoor and outdoor sides to achieve standby control, which reduces the wire cost of the air-conditioning system.

[0064] It should be noted that the power control module 300 can control the intelligent power module 400 to stop the output of the second power supply port 420, such as controlling the intelligent power module 400 to shut down the second power supply port 420, thereby de-energizing the primary load 500 connected to the second power supply port 420 and stopping operation. Since the outdoor controller 200 is directly powered by the first power supply port 410, that is, the on / off state of the second power supply port 420 does not affect the operating state of the outdoor controller 200, the outdoor controller 200 will maintain its current operating state after the primary load 500 stops operating. Compared with the technical solution in the related art in which the outdoor controller 200 sends a control signal to control the primary load 500 to enter sleep mode or shut down, the embodiment of the present application stops supplying power to the primary load 500 by cutting off the power input of the primary load 500, and only retains the power supply to the outdoor controller 200, which can more effectively reduce the power consumption required for the air-conditioning system to be in standby mode.

[0065] It should be noted that the power control module 300 may include a relay, the outdoor controller 200 is connected to the control end of the relay, and the switch end of the relay is respectively connected to the power input port and the second power supply port 420. The outdoor controller 200 controls the control end of the relay to realize the opening and closing of the switch end of the relay, thereby being able to control whether the second power supply port 420 can be connected to the power input port to obtain power, and then being able to control the second power supply port 420 to supply power to the primary load 500. For example, when the outdoor controller 200 sends a high-level signal to the control end of the relay, the control end of the relay receives the high-level signal and controls the switch end to close. The second power supply port 420 can draw power from the power input port and provide the converted DC power to the primary load 500.

[0066] In the schematic diagram of the air conditioning system shown in Figure 1, the second power supply port 420 is connected to the primary load 500. Power is directly supplied to the primary load 500 via the second power supply port 420. For example, the second power supply port 420 directly provides operating voltage to the compressor and fan. The power supply control module 300 is used to control the on / off state of the second power supply port 420. The outdoor controller 200 controls the operating state of the power supply control module 300, thereby controlling the on / off state of the second power supply port 420.

[0067] Referring to Figure 2, Figure 2 is a schematic diagram of the structure of an air conditioning system provided in another embodiment of the present application. It is understood that the power control module 300 is connected to the outdoor controller, the second power supply port 420, and the primary load, respectively. The intelligent power module 400 converts the external power supply to the operating voltage required by the primary load 500, then transmits it to the power control module 300 through the second power supply port 420, and then transmits it to the primary load 500 through the power control module 300. Therefore, the outdoor controller 200 can control whether the operating voltage output by the second power supply port 420 can be transmitted to the primary load 500 by controlling the on and off of the power control module 300, thereby controlling whether the operating voltage output by the second power supply port 420 can be transmitted to the primary load 500, thereby achieving standby control of the primary load 500.

[0068] It should be noted that the power control module 300 may include a transistor, the outdoor controller 200 is connected to the base of the transistor, the second power supply port 420 is connected to the collector of the transistor, and the primary load 500 is connected to the emitter of the transistor. The outdoor control controls the conduction and cutoff of the transistor to control whether the power control module 300 is in the off state or the on state. For example, when the outdoor controller 200 sends a high-level signal to the base of the transistor, the transistor is turned on, and the current delivered by the second power supply port 420 flows into the power control module 300 through the transistor, and the power control module 300 is in the on state.

[0069] It should be noted that the power control module 300 may also include a MOS tube. The outdoor controller 200 is connected to the gate of the MOS tube, the second power supply port 420 is connected to the drain of the MOS tube, and the power control module 300 is connected to the source of the MOS tube. The outdoor controller 200 controls the conduction and cutoff of the MOS tube to control whether the power control module 300 is in the shutdown state or the power-on state. For example, when the outdoor controller 200 sends a high-level signal to the gate of the MOS tube, the MOS tube is turned on, and the current delivered by the second power supply port 420 flows into the power control module 300 through the MOS tube, and the power control module 300 is in the power-on state.

[0070] It should be noted that the power control module 300 can also include a control chip. The outdoor controller 200 is connected to the signal receiving end of the control chip, the second power supply port 420 is connected to the power input end of the control chip, and the power control module 300 is connected to the output end of the control chip. The control chip can control the output level signal of the output end according to the signal received by the signal receiving end, thereby controlling the working state of the power control module 300.

[0071] In the structural diagram of the air conditioning system shown in Figure 2, the power control module 300 can also be connected to the controller of the primary load 500. For example, the power control module 300 is connected to the controller of the compressor and the controller of the fan. The outdoor controller 200 controls the conduction and interruption of the power control module 300, thereby controlling whether the current from the second power supply port 420 can pass through the power control module 300 to the controller of the primary load 500. By connecting the power control module 300 to the controller of the primary load 500, the power control module 300 can be protected from high currents, thereby extending the service life of the power control module 300.

[0072] Referring to Figure 3, Figure 3 is a structural diagram of an air-conditioning system provided by another embodiment of the present application. It can be understood that the outdoor controller also includes a primary load 500 and a secondary load 510, and the secondary load 510 is connected to the outdoor controller 200 and the first power supply port 410 respectively, so that the outdoor controller 200 can control the working state of the secondary load 510. In addition, through the communication connection between the indoor controller 600 and the outdoor controller 200, the outdoor controller 200 can control the working state of the secondary load 510 according to the signal sent by the indoor controller 600, thereby improving the control efficiency of the air-conditioning system. The power control module 300 is connected to the second power supply port 420 and the outdoor controller 200 respectively, and the primary load 500 is connected to the second power supply port 420. The power control module 300 can control the conduction and cutoff of the second power supply port 420 according to the signal sent by the outdoor controller 200, and then control whether the second power supply port 420 can supply power to the primary load 500, thereby realizing standby control of the primary load 500.

[0073] It is understood that the operating power of the primary load 500 can be higher than that of the secondary load 510. Power fluctuations may occur during the operation of the loads. The higher the operating power, the greater the abnormal voltage generated by the power fluctuations. Connecting the higher-powered primary load 500 to the second power supply port 420 and the lower-powered secondary load 510 to the outdoor controller 200 can prevent the outdoor controller 200 from experiencing abnormal voltages exceeding the tolerance range of the outdoor controller 200. For example, the primary load 500 can be a high-power load such as a compressor or fan, while the secondary load 510 can be a low-power load such as a four-way valve, an electronic expansion valve, and a soft-start relay. The outdoor controller 200 controls the operating state of the power control module 300, thereby controlling the operating state of the primary load 500, ultimately enabling the outdoor controller 200 to control the operating state of the primary load 500.

[0074] It should be noted that the intelligent power module 400 also includes a DC power supply unit, which can be connected to the power supply access socket 100 through the power supply input port, and connected to the outdoor controller 200 and the secondary load 510 through the first power supply port 410, and connected to the primary load 500 through the second power supply port 420, so that it can obtain external power through the power supply input port, and filter, rectify and boost the external power supply to convert the current input by the external power supply into DC power of multiple different voltages, and then provide DC power of different voltage levels to the outdoor controller 200, the secondary load 510 and the primary load 500 respectively.

[0075] Referring to Figure 4, which is a circuit diagram of a power control module provided in an embodiment of the present application, it is understood that the power control module 300 includes a first switch tube Q1 and a second switch tube Q2, wherein the control pin of the first switch tube Q1 is connected to the control terminal DAI JI of the outdoor controller 200, the first switch pin of the first switch tube Q1 is grounded, and the second switch pin of the second switch tube Q2 is connected to the primary load 500. The intelligent power module 400 is respectively connected to the second switch pin of the first switch tube Q1, the control pin of the second switch tube Q2, and the second switch pin of the second switch tube Q2.

[0076] The outdoor controller 200 can control the on / off state of the first switch Q1 by sending signals of varying levels to the control pin of the first switch Q1, thereby controlling the on / off state of the second switch Q2. When the second switch Q2 is off, the current supplied by the intelligent power module 400 cannot pass through the second switch Q2 to the primary load 500, causing the primary load 500 to cease operation. Therefore, by controlling the operating state of the first switch Q1, the outdoor controller 200 can control whether the primary load 500 is in the off state or on state. Furthermore, through the communication connection between the indoor controller 600 and the outdoor controller 200, the outdoor controller 200 can control the operating state of the first switch Q1 based on the signals sent by the indoor controller 600, thereby controlling whether the primary load 500 is in the off state or on state.

[0077] Specifically, when the first switch tube Q1 is an NPN-type transistor and the second switch tube Q2 is a PNP-type transistor, in the initial state, the control pin of the first switch tube Q1 is at a low level, the first switch tube Q1 is in a cut-off state, and the current provided by the intelligent power module 400 cannot pass through the first switch tube Q1. Therefore, the control pin of the second switch tube Q2 is at a high level, the second switch tube Q2 is in a cut-off state, and the current provided by the intelligent power module 400 cannot pass through the second switch tube Q2. Furthermore, the current provided by the intelligent power module 400 cannot enter the primary load 500 through the second switch tube Q2.

[0078] When the outdoor controller 200 sends a high-level signal to the control pin of the first switch Q1, the first switch Q1 turns on, and the current provided by the intelligent power module 400 flows directly through the first switch Q1. The control pin of the second switch Q2 goes low, turning on the second switch Q2, and the current provided by the intelligent power module 400 flows through the second switch Q2 to the primary load 500. By controlling the operating state of the first switch Q1, the outdoor controller 200 controls the operating state of the second switch Q2, and thus controls whether the intelligent power module 400 supplies power to the primary load 500. When the second switch Q2 is off, the intelligent power module 400 cannot supply power to the primary load 500, and the primary load 500 enters a shutdown state, i.e., a standby state.

[0079] Specifically, the first switch Q1 and the second switch Q2 can both be PNP transistors. In an initial state, the control pin of the first switch Q1 is at a high level, the first switch Q1 is in an off state, and the current provided by the intelligent power module 400 cannot pass through the first switch Q1. Therefore, the control pin of the second switch Q2 is at a high level, the second switch Q2 is in an off state, and the current provided by the intelligent power module 400 cannot pass through the second switch Q2. Consequently, the current provided by the intelligent power module 400 cannot enter the primary load 500 through the second switch Q2. When the outdoor controller 200 stops sending a high-level signal to the control pin of the first switch Q1, the first switch Q1 turns on, and the current provided by the intelligent power module 400 flows directly through the first switch Q1. The control pin of the second switch Q2 becomes low, turning on the second switch Q2, and the current provided by the intelligent power module 400 enters the primary load 500 through the second switch Q2.

[0080] Specifically, the first switch Q1 can be an N-type MOS transistor, and the second switch Q2 can be a P-type transistor. The gate of the first switch Q1 is connected to the outdoor controller 200, the source of the first switch Q1 is grounded, and the source of the second switch Q2 is connected to the primary load 500. The intelligent power module 400 is connected to the drain of the first switch Q1, the drain of the second switch Q2, and the gate of the second switch Q2, respectively. In the initial state, the source of the first switch Q1 is at a low level, and the first switch Q1 is in the off state. Therefore, the current provided by the intelligent power module 400 cannot pass through the first switch Q1. Therefore, the source of the second switch Q2 is at a high level, and the second switch Q2 is in the off state. Therefore, the current provided by the intelligent power module 400 cannot pass through the second switch Q2, and thus the current provided by the intelligent power module 400 cannot enter the primary load 500 through the second switch Q2.

[0081] When the outdoor controller 200 sends a high-level signal to the control gate of the first switch tube Q1, the first switch tube Q1 is turned on, and the current provided by the intelligent power module 400 flows out directly through the first switch tube Q1. The gate of the second switch tube Q2 changes from a high level to a low level, and the second switch tube Q2 is turned on. The current provided by the intelligent power module 400 enters the primary load through the second switch tube Q2.

[0082] Referring to FIG5 , FIG5 is a structural diagram of a current loop communication module of an air conditioning system provided by an embodiment of the present application. It is understood that the air conditioning system further includes a current loop communication module 900. The current loop communication includes an indoor communication module 610 and an outdoor communication module. The indoor communication module 610 is connected to the indoor controller 600, and the outdoor communication module is connected to the outdoor controller 200. The indoor controller 600 sends a control signal to the outdoor communication module via the indoor communication module 610. After receiving the signal sent by the indoor communication module 610, the outdoor communication module will feedback to the outdoor controller 200. The outdoor controller 200 can also send a control signal to the indoor communication module 610 via the outdoor communication module. After receiving the signal sent by the outdoor communication module, the indoor communication module 610 will feedback to the indoor controller 600. For example, if the air conditioning system needs to enter the standby state, the indoor controller 600 can send a corresponding control signal to the outdoor communication module via the indoor communication module 610. After receiving the signal, the outdoor communication module will feedback to the outdoor controller 200.

[0083] After the outdoor controller 200 receives the signal, it controls the first switch Q1 to be turned off, and the intelligent power module 400 stops supplying power to the primary load 500. The primary load 500 stops operating and enters a standby state. In addition, the outdoor controller 200 can also send a feedback signal to the indoor communication module 610 via the outdoor communication module. After receiving the feedback signal, the indoor communication module 610 feeds back the feedback to the indoor controller 600. After receiving the feedback signal, the indoor controller 600 can determine that the outdoor unit has entered the standby state. By providing the indoor communication module 610 and the outdoor communication module, the reliability of communication can be improved, and signal loss or signal errors caused by long-distance communication between the indoor controller 600 and the outdoor controller 200 can be avoided.

[0084] 6 , which is a circuit diagram of a current loop communication module of an air conditioning system provided by an embodiment of the present application.

[0085] It can be understood that the outdoor communication module 210 includes a first optocoupler device IC1 and an outdoor communication switch tube Q3, and the indoor communication module 610 includes a second optocoupler device IC2 and an indoor communication switch tube Q4, wherein the indoor controller 600 can be an indoor MCU, and the outdoor controller 200 can be an outdoor MCU.

[0086] The positive input end of the first optocoupler device IC1 is respectively connected to the first switch pin of the outdoor communication switch tube Q3 and the first power supply port 410, the negative input end of the first optocoupler device IC1 is connected to the connection point between the first switch pin of the outdoor communication switch tube Q3 and the first power supply port 410, the control pin of the outdoor communication switch tube Q3 is connected to the transmitting end of the outdoor controller 200, and the second switch pin of the outdoor communication switch tube Q3 is grounded.

[0087] The positive input end of the second optocoupler device IC2 is respectively connected to the first switch pin of the indoor communication switch tube Q4 and the power supply interface 700, the negative input end of the second optocoupler device IC2 is connected to the connection point between the first switch pin of the indoor communication switch tube Q4 and the power supply interface 700, the control pin of the indoor communication switch tube Q4 is connected to the transmitting end of the indoor controller 600, the second switch pin of the indoor communication switch tube Q4 is grounded, the receiving end of the indoor controller 600 is respectively connected to the second receiving end of the first optocoupler device IC1 and the second receiving end of the second optocoupler device IC2, and the receiving end of the outdoor controller 200 is respectively connected to the first receiving end of the first optocoupler device IC1 and the first receiving end of the second optocoupler device IC2.

[0088] By connecting the first power supply port 410 to the positive input end of the first optocoupler device IC1, the first optocoupler device IC1 can be continuously lit, that is, the receiving end of the first optocoupler device IC1 remains in a conductive state. The indoor controller 600 can control the working state of the indoor communication switch tube Q4, thereby controlling the working state of the second optocoupler device IC2, and ultimately realizing signal communication.

[0089] It should be noted that a first voltage-dividing resistor is further provided between the negative input terminal of the second optocoupler device IC2 and the power supply interface 700. By providing the first voltage-dividing resistor, the negative input terminal of the second optocoupler device IC2 and the positive input terminal of the second optocoupler device IC2 can be prevented from being short-circuited.

[0090] It should be noted that a second voltage-dividing resistor is provided between the negative input terminal of the first optocoupler device IC1 and the first power supply port 410. By providing the second voltage-dividing resistor, the negative input terminal of the first optocoupler device IC1 and the positive input terminal of the first optocoupler device IC1 can be prevented from being short-circuited.

[0091] It should be noted that the connection between the first power supply port 410 and the positive input terminal of the first optocoupler IC1 allows the first optocoupler IC1 to remain continuously lit, that is, the receiving terminal of the first optocoupler IC1 remains in a conductive state. When the indoor controller 600 needs to transmit a signal to the outdoor controller 200, the indoor controller 600 only needs to control the input terminal of the second optocoupler IC2 to light up, that is, the indoor controller 600 controls the indoor communication tube to be conductive. When the input terminal of the second optocoupler IC2 is illuminated, the receiving terminal of the second optocoupler IC2 changes from an off state to a conductive state, forming a loop current within the circuit loop, and the current flows into the receiving terminal of the outdoor controller 200, causing the receiving terminal of the outdoor controller 200 to become a high level. By controlling the high-low level conversion of the receiving terminal of the outdoor controller 200, signal transmission is achieved.

[0092] It is understood that the outdoor communication module also includes a third optocoupler IC3, and the indoor communication module 610 also includes a fourth optocoupler IC4. The positive input terminal of the third optocoupler IC3 is connected to the first receiving terminal of the second optocoupler IC2, the negative input terminal of the third optocoupler is connected to the first receiving terminal of the first optocoupler, the positive input terminal of the fourth optocoupler IC4 is connected to the second receiving terminal of the first optocoupler IC1, and the negative input terminal of the fourth optocoupler IC4 is connected to the second receiving terminal of the second optocoupler IC2. By providing the first optocoupler IC1, the second optocoupler IC2, the third optocoupler IC3, and the fourth optocoupler IC4, the current in the circuit loop communication module flows only within the circuit loop communication module, preventing the current in the circuit loop communication module from being directly transmitted to the indoor controller 600 and the outdoor controller 200, causing damage to the indoor controller 600 and the outdoor controller 200.

[0093] It should be noted that when the outdoor communication switch tube Q3 and the indoor communication switch tube Q4 are transistors, the control pin is the base of the transistor. The indoor controller 600 and the outdoor controller 200 only need to change the level signal of the base of the transistor to control the conduction of the transistor, and then control the lighting of the input end of the second optocoupler device IC2 and the input end of the first optocoupler device IC1 to realize signal transmission.

[0094] It should be noted that when the outdoor communication switch tube Q3 and the indoor communication switch tube Q4 are MOS tubes, the control pin is the gate of the MOS tube. The indoor controller 600 and the outdoor controller 200 only need to change the level signal of the gate of the MOS tube to control the conduction of the MOS tube, and then control the lighting of the input end of the second optocoupler device IC2 and the input end of the first optocoupler device IC1 to realize signal transmission.

[0095] It should be noted that the first receiving end of the third optocoupler IC3 is connected to the receiving end of the outdoor controller 200, and the second receiving end of the third optocoupler IC3 is connected to the first power supply port 410. When the first receiving end is conductive, the receiving end of the outdoor controller 200 is at a high level. In addition, the first receiving end of the third optocoupler IC3 can also be connected to the first power supply port 410 and the receiving end of the outdoor controller 200 respectively, and the second receiving end of the third optocoupler IC3 is grounded. When the first receiving end is conductive, the receiving end of the outdoor controller 200 is at a low level.

[0096] It can be understood that the receiving end of the second optocoupler device IC2 and the input end of the third optocoupler device IC3 are connected through a neutral line, and a live wire is also connected between the receiving end of the second optocoupler device IC2 and the input end of the third optocoupler device IC3 to provide working current for the current loop communication module 900.

[0097] It should be noted that the indoor unit also includes a DC power supply module for converting external power into DC power. The DC power supply module is arranged between the first switch pin of the indoor communication switch tube Q4 and the power supply interface 700, and converts the power input from the power supply interface 700 into DC power and then transmits it to the first switch pin of the indoor communication switch tube Q4.

[0098] It can be understood that the current loop communication module 900 also includes a current loop voltage stabilization module 910, which includes a voltage stabilization diode DZ1, a first filter capacitor C1, a second filter capacitor E1, a first resistor R1, a second resistor R2 and a diode D1, wherein the diode D1 rectifies the AC between the neutral line and the live line into a DC current, and the first resistor R1 and the second resistor R2 act as a voltage divider and current limiter, so that the voltage loaded on the voltage stabilization diode DZ1 is reduced. The voltage stabilization diode DZ1 stabilizes the DC voltage filtered by the first filter capacitor C1 and the second filter capacitor E1 and loads it on the current loop communication loop, providing the voltage required for normal operation of the current loop communication loop. For example, when the operating voltage of the current loop communication loop is 24V, the second resistor R2 needs to bear a relatively large voltage drop relative to the AC voltage between the live line and the neutral line, such as 220V, so a larger power resistor needs to be selected, such as a resistor with a resistance of 12K ohms. It should be noted that the position of the above-mentioned current loop voltage stabilizing module in the current loop communication module 900 is not limited. It can be located in the indoor unit part as in this embodiment, or in the outdoor unit part, as long as it can provide working voltage for the current loop communication loop.

[0099] 7 , which is a partial circuit diagram of an intelligent power module of an air-conditioning system provided by an embodiment of the present application. It can be understood that the intelligent power module 400 includes a first-stage buck circuit 401, a second-stage buck circuit 402, and a third-stage buck circuit 403. The input terminal (1) Vin of the first-stage buck circuit 401 is connected to the power supply socket 100 to step down the input voltage of the power supply socket 100 to 15V. The output terminal (1) Vout of the first-stage buck circuit 401 is connected to the input terminal (2) Vin of the second-stage buck circuit 402. The second-stage buck circuit 402 steps down the 15V voltage to 12V. The output terminal (2) Vout of the second-stage buck circuit 402 is connected to the input terminal (3) Vin of the third-stage buck circuit 403. The third-stage buck circuit 403 steps down the 12V voltage to 15V. In addition, the output terminal (1) Vout of the first-stage buck circuit 401, the output terminal (2) Vout of the second-stage buck circuit 402, and the output terminal (3) Vout of the third-stage buck circuit 403 can also be connected to multiple loads to provide driving voltages for different loads. By setting a multi-stage step-down circuit, the voltage input by the power supply socket 100 can be stepped down to meet the requirements of different loads in the air-conditioning system.

[0100] 8 , which is a flow chart of a standby control method for an air-conditioning system according to an embodiment of the present application, the standby control method for an air-conditioning system can be applied to the above-mentioned air-conditioning system. The standby control method includes but is not limited to the following steps:

[0101] Step S100, in response to the standby signal, controlling the power loads in the indoor unit except the indoor communication module to shut down, and sending a standby instruction signal to the outdoor controller;

[0102] Step S200: In response to the standby response signal sent by the outdoor controller, a cutoff signal for turning off the indoor communication switch tube is provided to the control pin of the indoor communication switch tube.

[0103] It can be understood that after the indoor controller 600 receives the standby signal sent by the user, the indoor controller 600 controls the power loads in the indoor unit except the indoor communication module 620 to shut down and sends a standby command signal to the outdoor controller 200 based on the received standby signal. The outdoor controller 200 sends a standby control signal to the power control module 300 based on the received standby command signal to stop the second power supply port 420 from supplying power to the primary load. After receiving the standby control signal, the power control module 300 controls the second power supply port 420 to stop working, and then stops the primary load 500 connected to the second power supply port 420 from working, that is, the air-conditioning system enters the standby state. When the outdoor controller 200 receives the standby command signal sent by the indoor controller 600, the outdoor controller 200 will also return a standby response signal to the indoor controller 600. After receiving the standby response signal, the indoor controller 600 sends a cutoff signal to the control pin of the indoor communication switch tube Q4 to shut down the indoor communication module 610. By shutting down the indoor communication module 610, the outdoor controller 200 can be prevented from continuing to send signals to the outdoor controller 200, thereby causing the outdoor controller 200 to be triggered incorrectly.

[0104] It should be noted that by controlling the power loads in the indoor unit except the indoor communication module 620 to shut down, the power consumption of the air-conditioning system in the standby state can be effectively reduced.

[0105] It should be noted that the indoor controller 600 will perform standby control only when the air-conditioning system is in normal working condition. When the air-conditioning system is in standby condition, the indoor controller 600 will not perform any operation after receiving the standby signal sent by the user.

[0106] Specifically, when the air-conditioning system needs to enter the standby state, the transmitting end of the indoor controller 600 controls the indoor communication switch tube Q4 to turn on, the input end of the second optocoupler device IC2 is lit, the receiving end of the second optocoupler device IC2 is turned on, the current in the current loop communication module 900 forms a complete loop, the input end of the third optocoupler device IC3 is lit, and the receiving end of the outdoor controller 200 receives the current signal, which can be considered as the standby command signal sent by the indoor controller 600. After the receiving end of the outdoor controller 200 receives the current signal, the outdoor controller 200 sends a cut-off signal to the first switch tube Q1, and the first switch tube Q1 enters the cut-off state, that is, the power control module 300 stops working, and then the second power supply port 420 stops working, and the first-level load 500 connected to the second power supply port 420 also stops working.

[0107] After the receiving end of the outdoor controller 200 receives the standby command signal, the transmitting end of the outdoor controller 200 sends a cutoff signal for turning off the outdoor communication switch tube Q3 to the control pin of the outdoor communication switch tube Q3, and the outdoor communication switch tube Q3 enters the cutoff state, and then the input end of the first optocoupler device IC1 stops emitting light, the receiving end of the first optocoupler device IC1 is cut off, the current in the current loop communication module 900 is cut off, the input end of the fourth optocoupler device IC4 stops emitting light, the receiving end of the fourth optocoupler device IC4 is cut off, and the receiving end of the indoor controller 600 stops receiving the current signal. It can be considered that the second power supply port 420 has stopped working. The transmitting end of the indoor controller 600 sends a cutoff signal for turning off the indoor communication switch tube Q4 to the control pin of the indoor communication switch tube Q4, the indoor communication switch tube Q4 is cut off, and the current in the current loop communication loop is cut off.

[0108] 9 , which is a flowchart of a wake-up control method for an air-conditioning system according to an embodiment of the present application, the standby control method for the air-conditioning system can be applied to the above-mentioned air-conditioning system. The standby control method includes but is not limited to the following steps:

[0109] Step S300: In response to the wake-up signal, the operation of the electrical load in the indoor unit is controlled according to the wake-up signal, and a wake-up instruction signal is sent to the outdoor controller.

[0110] It can be understood that when the air-conditioning system is in standby mode, after the indoor controller 600 receives the wake-up signal sent by the user, the indoor controller 600 controls the operation of the power load in the indoor unit according to the received wake-up signal, and sends a wake-up command signal to the outdoor controller 200. The outdoor controller 200 sends a wake-up control signal for controlling the second power supply port 420 to supply power to the primary load to the power control module 300 according to the received wake-up command signal. After receiving the wake-up control signal, the power control module 300 enters the working state, the second power supply port 420 starts working, and the primary load 500 connected to the second power supply port 420 also starts working, that is, the air-conditioning system enters the wake-up state.

[0111] Specifically, the transmitting end of the indoor controller 600 controls the indoor communication switch tube Q4 from the cut-off state to the on state, the input end of the second optocoupler device IC2 is lit, the receiving end of the second optocoupler device IC2 is turned on, the current in the current loop communication module 900 forms a complete loop, the input end of the third optocoupler device IC3 is lit, and the receiving end of the outdoor controller 200 receives the current signal, which can be considered as the wake-up command signal sent by the indoor controller 600.

[0112] After the receiving end of the outdoor controller 200 receives the current signal, the outdoor controller 200 sends a conduction signal to the first switch tube Q1, and the first switch tube Q1 enters the conduction state, that is, the power control module 300 starts working, and then the second power supply port 420 starts working, and the first-level load 500 connected to the second power supply port 420 also starts working, and the air-conditioning system enters the wake-up state.

[0113] 10 , which is a flowchart of a wake-up control method for an air-conditioning system according to an embodiment of the present application, the standby control method for the air-conditioning system can be applied to the above-mentioned air-conditioning system. The standby control method includes but is not limited to the following steps:

[0114] Step S310: In response to the wake-up signal, the operation of the electrical load in the indoor unit is controlled according to the wake-up signal, and a turn-on signal for turning on the indoor communication switch is provided to the control pin of the indoor communication switch;

[0115] Step S320: Send a wake-up command signal to the outdoor controller via the indoor communication module.

[0116] It can be understood that when the air-conditioning system is in standby mode, after the indoor controller 600 receives the wake-up signal sent by the user, the indoor controller 600 controls the operation of the power load in the indoor unit and controls the indoor communication switch tube Q4 to enter the on state. When the indoor communication switch tube Q4 is in the on state, the indoor controller 600 sends a wake-up command signal to the outdoor controller 200 through the indoor communication module 610 to make the outdoor unit enter the wake-up state.

[0117] Specifically, the transmitting end of the indoor controller 600 controls the indoor communication switch tube Q4 from the cut-off state to the on state, the input end of the second optocoupler device IC2 in the indoor communication module 610 is lit, the receiving end of the second optocoupler device IC2 is turned on, the input end of the third optocoupler device IC3 in the outdoor communication module 210 is lit, and the receiving end of the outdoor controller 200 receives a current signal, which can be considered as the wake-up command signal sent by the indoor communication module 610.

[0118] Referring to FIG. 11 , FIG. 11 is a flowchart of a wake-up control method for an air-conditioning system provided in an embodiment of the present application. The standby control method for the air-conditioning system can be applied to the above-mentioned air-conditioning system. The standby control method includes but is not limited to the following steps:

[0119] Step S400: In response to the standby instruction signal sent by the indoor controller, a standby control signal for stopping the second power supply port from supplying power to the primary load is sent to the power control module, and the standby mode is operated.

[0120] It can be understood that after the outdoor controller 200 receives the standby command signal sent by the indoor controller 600, it will send a standby control signal to the power control module 300 to stop the second power supply port 420 from supplying power to the primary load 500. After receiving the standby control signal, the power control module 300 controls the second power supply port 420 to stop working, and then stops the primary load 500 connected to the second power supply port 420 from working, that is, the air-conditioning system enters the standby state.

[0121] Specifically, after the receiving end of the outdoor controller 200 receives the standby command signal, the outdoor controller 200 sends a cut-off signal to the first switch tube Q1, and the first switch tube Q1 enters the cut-off state, that is, the power control module 300 stops working, and then the second power supply port 420 stops working, and the first-level load 500 connected to the second power supply port 420 also stops working.

[0122] It should be noted that after sending the standby control signal to the power control module 300 , the outdoor controller 200 will also return a standby response signal to the indoor controller 600 to confirm to the indoor controller 600 that the outdoor unit has entered the standby state.

[0123] Specifically, after the receiving end of the outdoor controller 200 receives the standby command signal, the transmitting end of the outdoor controller 200 sends a cutoff signal for shutting down the outdoor communication switch tube Q3 to the control pin of the outdoor communication switch tube Q3, and the outdoor communication switch tube Q3 enters the cut-off state, and then the input end of the first optocoupler device IC1 stops emitting light, the receiving end of the first optocoupler device IC1 is cut off, the current in the current loop communication module 900 is cut off, the input end of the fourth optocoupler device IC4 stops emitting light, the receiving end of the fourth optocoupler device IC4 is cut off, and the level signal of the receiving end of the indoor controller 600 becomes a low level signal. The low level signal can be considered as the standby response signal sent by the outdoor controller 200.

[0124] It should be noted that when the outdoor communication switch Q3 enters the off state for a period of time, the transmitting end of the outdoor controller 200 will also send a turn-on signal to the control pin of the outdoor communication switch Q3 to turn on the outdoor communication switch Q3, so that the input end of the first optocoupler IC1 continues to emit light. This prevents the outdoor controller 200 from being unable to promptly receive the wake-up control signal sent by the indoor controller 600 due to the receiving end of the first optocoupler IC1 being cut off. The time when the outdoor communication switch Q3 enters the off state can be adjusted according to actual conditions.

[0125] Referring to FIG. 11 , FIG. 11 is a flowchart of a wake-up control method for an air-conditioning system provided in an embodiment of the present application. The standby control method for the air-conditioning system can be applied to the above-mentioned air-conditioning system. The standby control method includes but is not limited to the following steps:

[0126] Step S500: In response to the wake-up instruction signal sent by the indoor controller, a wake-up control signal for controlling the second power supply port to supply power to the primary load is sent to the power control module.

[0127] It can be understood that when the air-conditioning system enters the standby state, the outdoor controller 200 sends a wake-up control signal for controlling the second power supply port 420 to supply power to the primary load to the power control module 300 according to the received wake-up command signal. After receiving the wake-up control signal, the power control module 300 enters the working state, the second power supply port 420 starts working, and the primary load 500 connected to the second power supply port 420 also starts working, that is, the air-conditioning system enters the wake-up state.

[0128] Specifically, the outdoor controller 200 sends a conduction signal to the first switch tube Q1, and the first switch tube Q1 enters the conduction state, that is, the power control module 300 starts working, and then the second power supply port 420 starts working, and the first-level load 500 connected to the second power supply port 420 also starts working, and the air-conditioning system enters the wake-up state.

[0129] It should be noted that after sending the wake-up control signal to the power control module 300 , the outdoor controller 200 will also return a wake-up response signal to the indoor controller 600 to confirm to the indoor controller 600 that the outdoor unit has entered the wake-up state.

[0130] Specifically, after the receiving end of the outdoor controller 200 receives the wake-up command signal, the sending end of the outdoor controller 200 sends a cutoff signal for shutting down the outdoor communication switch tube Q3 to the control pin of the outdoor communication switch tube Q3, and the outdoor communication switch tube Q3 enters the cut-off state, and then the input end of the first optocoupler device IC1 stops emitting light, the receiving end of the first optocoupler device IC1 is cut off, the current in the current loop communication module 900 is cut off, the input end of the fourth optocoupler device IC4 stops emitting light, the receiving end of the fourth optocoupler device IC4 is cut off, and the level signal of the receiving end of the indoor controller 600 becomes a low level signal. The low level signal can be considered as the wake-up response signal sent by the outdoor controller 200.

[0131] It should be noted that when the outdoor communication switch Q3 enters the off state for a period of time, the transmitting end of the outdoor controller 200 will also send a turn-on signal to the control pin of the outdoor communication switch Q3 to turn on the outdoor communication switch Q3, so that the input end of the first optocoupler IC1 continues to emit light. This prevents the outdoor controller 200 from being unable to promptly receive the wake-up control signal sent by the indoor controller 600 due to the receiving end of the first optocoupler IC1 being cut off. The time when the outdoor communication switch Q3 enters the off state can be adjusted according to actual conditions.

[0132] Referring to Figure 12, Figure 12 is a flow chart of the standby control method of the indoor unit provided by the implementation of the present application. It is understandable that the indoor controller 600 will obtain the working status of the indoor unit before working. If there is abnormal information in the indoor unit, the indoor unit will issue an alarm to remind the user to perform maintenance. After receiving the wake-up or standby command, the indoor controller 600 will also analyze the command. For example, when the air-conditioning system is in standby mode, the indoor controller 600 will continue to work only after receiving the wake-up command. Similarly, when the air-conditioning system is in wake-up mode, the indoor controller 600 will continue to work only after receiving the standby command. The wake-up command can be a wake-up control signal, and the standby command can be a standby control signal.

[0133] When the indoor controller 600 runs the wake-up command, the transmitting end of the indoor controller 600 controls the indoor communication switch tube Q4 from the cut-off state to the on state, the input end of the second optocoupler device IC2 is lit, the receiving end of the second optocoupler device IC2 is turned on, the current in the current loop communication module 900 forms a complete loop, the input end of the third optocoupler device IC3 is lit, the receiving end of the outdoor controller 200 receives the current signal, the outdoor unit enters the wake-up state and returns the signal through the current loop communication module 900, the indoor unit controller analyzes the signal returned by the outdoor unit controller, if there is an abnormality in the signal returned by the outdoor unit controller, the indoor unit will issue an alarm to remind the user to perform maintenance, if there is no abnormality in the signal returned by the outdoor unit controller, the outdoor unit controller controls the indoor load to work, such as turning on the indoor fan and the air outlet. When the indoor unit controller runs the standby command, the indoor controller 600 will first turn off the indoor load, and then send a standby command to the outdoor controller 200. After receiving the control signal sent by the indoor controller 600, the outdoor controller 200 will not only control the power control module 300 to stop working, but also return a signal to the indoor controller 600. The indoor controller 600 analyzes the signal returned by the outdoor controller 200. If there is an abnormality in the signal returned by the outdoor controller 200, the indoor unit will issue an alarm to remind the user to perform maintenance. Unlike the indoor controller 600 running the wake-up command, under the standby command, regardless of whether there is an abnormality in the signal returned by the outdoor controller 200, the indoor controller 600 will still control the indoor communication switch tube Q4 from the on state to the off state, thereby turning off the second optocoupler device IC2 and stopping the current transmission in the current loop communication module 900.

[0134] Referring to Figure 13, Figure 13 is a flow chart of the standby control method of the outdoor unit provided in an embodiment of the present application. It can be understood that the outdoor controller 200 controls the outdoor communication switch tube Q3 to remain in the on state, thereby keeping the input terminal of the first optocoupler device IC1 lit. After receiving the signal, the outdoor controller 200 will first analyze the command. If the command is not a wake-up command or a standby command, the outdoor controller 200 will return status information to the indoor controller 600, and then adjust the operating status of the primary load 500 and the secondary load 510 according to the command. For example, the outdoor controller 200 can return the status of the refrigeration system to the indoor controller 600 and control the working status of the compressor or fan according to the command, wherein the wake-up command can be a wake-up control signal, and the standby command can be a standby control signal.

[0135] During communication between the outdoor controller 200 and the indoor controller 600, if the outdoor controller 200 does not receive a signal from the indoor controller 600 for a long period of time, the outdoor controller 200 will determine whether the air conditioning system is turned on. If the air conditioning system is turned on, the outdoor controller 200 will send a control signal to the power control module 300 to shut down the second power supply port 420. This will in turn shut down the second power supply port 420, causing the primary load 500 connected to the second power supply port 420 to also shut down, putting the air conditioning system into standby mode. When the outdoor controller 200 receives a wake-up command, it controls the soft start relay to turn on and sends a confirmation of the wake-up command to the indoor controller 600 before controlling the power control module 300 to turn on.

[0136] It should be noted that in the current loop signal module, the indoor controller 600 can control the on / off switching of the indoor communication switch Q4, thereby controlling the lighting and extinguishing of the second optocoupler IC2, ultimately changing the current transmission state in the current loop communication module 900. When current flows in the current loop communication module 900, the receiving end of the outdoor controller 200 is at a high level. When the current in the current loop communication module 900 is cut off, the receiving end of the outdoor controller 200 is at a low level. By controlling the current transmission state in the current loop communication module 900, the level signal received by the receiving end of the outdoor controller 200 can be controlled, thereby achieving signal transmission.

[0137] In the fourth aspect, referring to Figure 14, an embodiment of the present application provides an operation control device 1400, including a memory 1410, a processor 1420, and a computer program stored on the memory 1410 and executable on the processor 1420. The processor 1420 executes the program to implement the standby control method of the air-conditioning system of the second aspect embodiment above, such as executing method steps S100 to S200 in Figure 8, method steps S300 in Figure 9, and method steps S310 to S320 in Figure 10, or to implement the standby control method of the air-conditioning system of the third aspect embodiment above, such as executing method steps S400 to S500 in Figure 10.

[0138] Memory 1410, as a non-transitory computer-readable storage medium, can be used to store non-transitory software programs and non-transitory computer-executable programs, such as the standby control method for the air conditioning system in the above-mentioned embodiments of the present application. Processor 1420 implements the standby control method for the air conditioning system in the above-mentioned embodiments of the present application by executing the non-transitory software programs and instructions stored in memory 1410.

[0139] The memory 1410 may include a program storage area and a data storage area, wherein the program storage area may store an operating system and application programs required for at least one function; the data storage area may store data required to execute the standby control method of the air-conditioning system in the above embodiment, etc. In addition, the memory 1410 may include a high-speed random access memory 1410, and may also include a non-volatile memory 1410, such as at least one disk storage device, a flash memory device, or other non-volatile solid-state storage device. It should be noted that the memory 1410 may optionally include a memory 1410 remotely arranged relative to the processor 1420, and these remote memories 1410 may be connected to the terminal via a network. Examples of the above-mentioned network include but are not limited to the Internet, an intranet, a local area network, a mobile communication network, and a combination thereof.

[0140] In the fifth aspect, an embodiment of the present application provides a computer-readable storage medium, which stores computer-executable instructions. The computer-executable instructions are used to enable a computer to execute the standby control method of the air-conditioning system as described in the second aspect embodiment above, such as executing method steps S100 to S200 in Figure 8 and method steps S300 in Figure 9 and method steps S310 to S320 in Figure 10, or to implement the standby control method of the air-conditioning system as described in the third aspect embodiment above, such as executing method steps S400 to S500 in Figure 10.

[0141] It will be understood by those skilled in the art that all or some of the steps and systems in the methods disclosed above can be implemented as software, firmware, hardware, and appropriate combinations thereof. Some or all of the physical components can be implemented as software executed by a processor, such as a central processing unit, a digital signal processor, or a microprocessor, or as hardware, or as an integrated circuit, such as an application-specific integrated circuit. Such software can be distributed on computer-readable media, which can include computer storage media or non-transitory media and communication media or transient media. As is well known to those skilled in the art, the term computer storage media includes volatile and non-volatile, removable and non-removable media implemented in any method or technology for storing information such as computer-readable instructions, data structures, program modules, or other data. Computer storage media includes, but is not limited to, RAM, ROM, EEPROM, flash memory or other memory technology, CD-ROM, digital versatile disks (DVDs) or other optical disk storage, magnetic cassettes, magnetic tape, magnetic disk storage or other magnetic storage devices, or any other medium that can be used to store desired information and can be accessed by a computer. Furthermore, as is well known to those skilled in the art, communication media typically embodies computer-readable instructions, data structures, program modules, or other data in a modulated data signal such as a carrier wave or other transport mechanism, and may include any information delivery media.

[0142] The embodiments of the present application are described in detail above in conjunction with the accompanying drawings, but the present application is not limited to the above embodiments. Various changes can be made within the scope of knowledge possessed by ordinary technicians in the technical field without departing from the purpose of the present application.

Claims

1. An air conditioning system comprising: An outdoor unit includes an outdoor controller, a power supply socket for connecting to an external power supply, an intelligent power module for converting the external power supply, and a power control module connected to the outdoor controller; the intelligent power module includes a power input port connected to the power supply socket, a first power supply port for supplying power to the outdoor controller, and a second power supply port for supplying power to a primary load; the power control module is connected to the intelligent power module so that the power control module controls the second power supply port to supply power to the primary load according to a control signal from the outdoor controller; as well as The indoor unit includes a power supply interface connected to the power supply socket to power the indoor unit, and an indoor controller communicatively connected to the outdoor controller, so that the outdoor controller sends a standby control signal to the power control module according to the communication signal sent by the indoor controller.

2. The air conditioning system according to claim 1, wherein: The outdoor unit further includes a secondary load, which is respectively connected to the first power supply port and the outdoor controller.

3. The air conditioning system according to claim 1 or 2, wherein: The power control module includes a first switch tube and a second switch tube, the control pin of the first switch tube is connected to the outdoor controller, the first switch pin of the first switch tube is grounded, the first switch pin of the second switch tube is connected to the second power supply port, and the second power supply port is simultaneously connected to the control pin and the second switch pin of the second switch tube, and the second switch pin of the first switch tube.

4. The air-conditioning system according to any one of claims 1 to 3, further comprising a current loop communication module, wherein the current loop communication module comprises an indoor communication module and an outdoor communication module, wherein the indoor communication module is connected to the indoor controller, and the outdoor communication module is connected to the outdoor controller.

5. The air conditioning system according to claim 4, wherein: The outdoor communication module includes a first optocoupler device and an outdoor communication switch tube. The positive input end of the first optocoupler device is connected to the first switch pin of the outdoor communication switch tube and is also connected to the first power supply port. The control pin of the outdoor communication switch tube is connected to the outdoor controller, and the second switch pin of the outdoor communication switch tube is grounded.

6. The air conditioning system according to claim 4 or 5, wherein: The indoor communication module includes a second optocoupler device and an indoor communication switch tube. The positive input end of the second optocoupler device is connected to the first switch pin of the indoor communication switch tube and is also connected to a DC power supply module for converting an external power supply into a DC power supply. The control pin of the indoor communication switch tube is connected to the indoor controller, the second switch pin of the indoor communication switch tube is grounded, and the DC power supply module is connected to the power supply interface.

7. A standby control method for an air conditioning system, applied to an indoor controller in the air conditioning system according to any one of claims 1 to 6, the standby control method comprising: In response to the standby signal, the power loads in the indoor unit except the indoor communication module are controlled to shut down, and a standby instruction signal is sent to the outdoor controller, so that the outdoor controller sends a standby control signal to the power control module to stop the second power supply port from supplying power to the primary load.

8. The standby control method according to claim 7, applied to the indoor controller in the air conditioning system according to claim 6, wherein after the indoor controller sends a standby instruction signal to the outdoor controller, the standby control method comprises: In response to the standby response signal sent by the outdoor unit, a cutoff signal for closing the indoor communication switch tube is provided to the control pin of the indoor communication switch tube.

9. The standby control method according to claim 7 or 8, further comprising: In response to the wake-up signal, the operation of the power load in the indoor unit is controlled according to the wake-up signal, and a wake-up instruction signal is sent to the outdoor controller, so that the outdoor controller sends a wake-up control signal to the power control module for controlling the second power supply port to supply power to the primary load.

10. The standby control method according to claim 9, applied to the indoor controller of the air conditioning system according to claim 6, wherein the step of responding to the wake-up signal, controlling the operation of the electrical load in the indoor unit according to the wake-up signal, and sending a wake-up instruction signal to the outdoor controller comprises: In response to a wake-up signal, controlling the operation of the electrical load in the indoor unit according to the wake-up signal, and providing a turn-on signal for turning on the indoor communication switch tube to the control pin of the indoor communication switch tube; A wake-up command signal is sent to the outdoor controller via the indoor communication module.

11. A standby control method for an air conditioning system, applied to an outdoor controller in the air conditioning system according to any one of claims 1 to 6, the standby control method comprising: In response to the standby instruction signal sent by the indoor controller, a standby control signal for stopping the second power supply port from supplying power to the primary load is sent to the power control module, and the standby mode is operated.

12. The standby control method according to claim 11, wherein: In response to the standby instruction signal sent by the indoor controller, a standby response signal is returned to the indoor controller.

13. The standby control method according to claim 11 or 12, further comprising: In response to the wake-up instruction signal sent by the indoor controller, a wake-up control signal for controlling the second power supply port to supply power to the primary load is sent to the power control module.

14. The standby control method according to claim 13, wherein: After sending a wake-up control signal for controlling the second power supply port to supply power to the primary load to the power control module, a wake-up response signal is returned to the indoor controller.

15. An operation control device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the program to implement the standby control method for the air-conditioning system according to any one of claims 7 to 14. 16 . A computer-readable storage medium storing computer-executable instructions, wherein the computer-executable instructions are used to enable a computer to execute the standby control method for an air-conditioning system according to claim 7 .

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