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

Abstract

The invention 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, and the outdoor unit comprises an outdoor controller, a power supply access seat, an intelligent power module and a power supply control module; the intelligent power module comprises a power supply input port connected with the power supply access seat, a first power supply port used for supplying power to the outdoor controller, and a second power supply port used for supplying power to the primary load, and the power supply control module controls the second power supply port to supply power to the primary load according to a control signal of the outdoor controller; the indoor unit comprises a power supply interface which is connected with the power supply access seat to supply power to the indoor unit, and an indoor controller which is in communication connection with the outdoor controller, so that the outdoor controller sends a standby control signal to the power supply control module according to a communication signal sent by the indoor controller; standby control can be realized without power lines on the inner side and the outdoor side of the control room under the condition of taking power from the outdoor side.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioners, and particularly to an air conditioning system, a standby control method, an operation control device and a storage medium. Background Art

[0002] Currently, an air conditioning system includes an indoor unit and an outdoor unit. Usually, the indoor unit provides power to the outdoor unit. Therefore, the indoor unit is usually used to cut off the power supply of the outdoor unit so that the outdoor unit is completely powered off, thereby reducing the standby power consumption of the air conditioning system.

[0003] For some air conditioning systems, the power supply method is restricted to the outdoor side. In order to achieve the low-power mode of the air conditioning system, the indoor unit needs to be connected to the wiring terminal board of the outdoor unit through a zero-fire connection wire to obtain power, and then the indoor unit supplies power to the load of the outdoor unit through a power cord. Therefore, the indoor unit can cut off the power supply of the outdoor unit by cutting off the power cord. However, since the live wire needs to bear the load current of the entire air conditioning system, and the power cord needs to bear the load current of the outdoor unit load, the requirements for the live wire and the power cord are high, resulting in high wire material costs. Therefore, how to achieve low-cost standby control under the condition of taking power from the outdoor side has become an urgent problem to be solved. Summary of the Invention

[0004] The purpose of the present invention is to at least solve one of the technical problems existing in the prior art, and provide an air conditioning system, a standby control method, an operation control device and a storage medium, which optimize the wiring method of the air conditioning system, reduce the requirements for wire materials, and achieve low-cost standby control under the condition of taking power from the outdoor side.

[0005] In a first aspect, an embodiment of the present invention provides an air conditioning system, including:

[0006] An outdoor unit, including an outdoor controller, a power supply access socket for accessing 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 supply input port connected to the power supply access 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, and 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 the control signal of the outdoor controller;

[0007] An indoor unit, including a power supply interface connected to the power supply access socket to supply power to 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.

[0008] The air-conditioning system provided by the embodiment of the present invention has at least the following beneficial effects: When the power is taken from the outdoor side of the air-conditioning system, the intelligent power module takes power through the power supply access socket. Among them, 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 primary load through the second power supply port. The outdoor controller can control whether the second power supply port can supply power to the primary load through the power control module, so as to control the primary load to cut off power, and further realize the standby control of the outdoor unit. On the indoor side of the air-conditioning system, the indoor unit can obtain power by connecting to the power supply access socket of the outdoor unit through the power supply interface. 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, realizing flexible standby control. Therefore, the air-conditioning system provided by the embodiment of the present invention optimizes the wiring method between the indoor unit and the outdoor unit. When taking power from the outdoor side, it is not necessary to control the power lines on the indoor side and the outdoor side to realize standby control, and the live wire led from the power supply access socket on the outdoor side to the indoor side only needs to bear the load current of the indoor unit, reducing the demand for wire materials, reducing the wire material cost of the air-conditioning system, and further being able to achieve low-cost standby control when taking power from the outdoor side.

[0009] In the air-conditioning system provided by the embodiment of the present invention, 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.

[0010] In the air-conditioning system provided by the embodiment of the present invention, the power control module includes a first switching tube and a second switching tube. The control pin of the first switching tube is connected to the outdoor controller, the first switching pin of the first switching tube is grounded, the first switching pin of the second switching 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 switching pin of the second switching tube, and the second switching pin of the first switching tube.

[0011] In the air-conditioning system provided by the embodiment of the present invention, the air-conditioning system further 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.

[0012] In the air-conditioning system provided by the embodiment of the present invention, the outdoor communication module includes a first optocoupler device and an outdoor communication switching tube. The positive input terminal of the first optocoupler device is connected to the first switching pin of the outdoor communication switching tube and is simultaneously connected to the first power supply port. The control pin of the outdoor communication switching tube is connected to the outdoor controller, and the second switching pin of the outdoor communication switching tube is grounded.

[0013] In the air-conditioning system provided by the embodiments of the present invention, the indoor communication module includes a second optocoupler device and an indoor communication switch tube. The positive input terminal of the second optocoupler device is connected to the first switch pin of the indoor communication switch tube and is simultaneously 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. The DC power supply module is connected to the power supply interface.

[0014] Second, the embodiments of the present invention provide a standby control method for an air-conditioning system, which is applied to the air-conditioning system described in the embodiments of the first aspect. The standby control method includes:

[0015] In response to a standby signal, control the electrical loads in the indoor unit except the indoor communication module to stop operating, and send a standby instruction signal 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.

[0016] According to the standby control method for the air-conditioning system provided by the embodiments of the present invention, it has at least the following beneficial effects: When the power is taken from the outdoor side of the air-conditioning system, the indoor controller sends a standby instruction signal to the outdoor controller. When the outdoor controller receives the standby instruction signal, the outdoor controller sends a standby control signal to the power control module. After receiving the standby control signal, the power control module controls the second power supply port to stop supplying power to the primary load, thereby realizing the standby control of the primary load. Moreover, in the standby control method provided in this embodiment, when the power is taken from the outdoor side, there is no need to control the power lines on the indoor side and the outdoor side to achieve standby control. The live wire led from the power supply access socket on the outdoor side to the indoor side only needs to bear the load current of the indoor unit, reducing the demand for wires, thereby reducing the wire cost of the air-conditioning system, and further enabling low-cost standby control when the power is taken from the outdoor side.

[0017] In the standby control method provided by the embodiments of the present invention, after the indoor controller sends a standby instruction signal to the outdoor controller, it includes:

[0018] In response to the standby response signal sent by the outdoor unit, provide a cut-off signal for turning off the indoor communication switch tube to the control pin of the indoor communication switch tube.

[0019] In the standby control method provided by the embodiments of the present invention, the standby control method further includes:

[0020] In response to a wake-up signal, control the operation of the electrical loads in the indoor unit according to the wake-up signal, and send a wake-up instruction signal to the outdoor controller, so that the outdoor controller sends a wake-up control signal to the power control module to control the second power supply port to supply power to the primary load.

[0021] In the standby control method provided by the embodiment of the present invention, the step of in response to a wake-up signal, controlling the operation of the electrical loads in the indoor unit according to the wake-up signal, and sending a wake-up instruction signal to the outdoor controller includes:

[0022] In response to a wake-up signal, control the operation of the electrical loads in the indoor unit according to the wake-up signal, and provide a conduction signal for turning on the indoor communication switch tube to the control pin of the indoor communication switch tube;

[0023] Send a wake-up instruction signal to the outdoor controller through the indoor communication module.

[0024] In a third aspect, an embodiment of the present invention provides a standby control method for an air conditioning system, which is applied to the air conditioning system as described in the embodiment of the first aspect. The standby control method includes:

[0025] In response to the standby instruction signal sent by the indoor controller, send a standby control signal to the power control module to stop the second power supply port from supplying power to the primary load, and enter the standby mode.

[0026] According to the standby control method for an air conditioning system provided by the embodiment of the present invention, at least the following beneficial effects are achieved: When the power is taken from the outdoor side of the air conditioning system, the indoor controller sends a standby instruction signal to the outdoor controller. When the outdoor controller receives the standby instruction signal, the outdoor controller sends a standby control signal to the power control module. After receiving the standby control signal, the power control module controls the second power supply port to stop supplying power to the primary load, thereby realizing the standby control of the primary load. Moreover, in the standby control method provided by this embodiment, when taking power from the outdoor side, there is no need to control the power lines on the indoor side and the outdoor side to achieve standby control. The live wire led from the power supply access socket on the outdoor side to the indoor side only needs to bear the load current of the indoor unit, reducing the requirement for wires, thus reducing the wire cost of the air conditioning system, and further enabling low-cost standby control when taking power from the outdoor side.

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

[0028] In the standby control method provided by the embodiment of the present invention, 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 by the embodiment of the present invention, 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 a fourth aspect, an embodiment of the present invention provides an operation control device, including a memory, a processor, and a computer program stored on the memory and executable on the processor. The processor executes the program to implement the standby control method of the air-conditioning system described in the second aspect embodiment above or the standby control method of the air-conditioning system described in the third aspect embodiment above.

[0032] According to the operation control device provided by the embodiment of the present invention, it has at least the following beneficial effects: When the power is taken from the outdoor side of the air-conditioning system, the indoor controller sends a standby instruction signal to the outdoor controller. When the outdoor controller receives the standby instruction signal, the outdoor controller sends a standby control signal to the power control module. After receiving the standby control signal, the power control module controls the second power supply port to stop supplying power to the primary load, thereby realizing the standby control of the primary load. Moreover, in the standby control method provided by this embodiment, when taking power from the outdoor side, there is no need to control the power lines on the indoor side and the outdoor side to achieve standby control. The live wire led from the power supply access socket on the outdoor side to the indoor side only needs to bear the load current of the indoor unit, reducing the demand for wires, thus reducing the wire cost of the air-conditioning system, and further enabling low-cost standby control when taking power from the outdoor side.

[0033] In a fifth aspect, an embodiment of the present invention provides a computer-readable storage medium, which stores computer-executable instructions for causing a computer to execute the standby control method of the air-conditioning system described in the second aspect embodiment above or the standby control method of the air-conditioning system described in the third aspect embodiment above.

[0034] According to the computer-readable storage medium provided by the embodiments of the present invention, it has at least the following beneficial effects: When taking power from the outdoor side of the air-conditioning system, the indoor controller sends a standby instruction signal to the outdoor controller. When the outdoor controller receives the standby instruction signal, the outdoor controller sends a standby control signal to the power control module. After receiving the standby control signal, the power control module controls the second power supply port to stop supplying power to the primary load, thereby realizing the standby control of the primary load. Moreover, the standby control method provided by this embodiment does not require controlling the power lines on the indoor side and the outdoor side to achieve standby control when taking power from the outdoor side. The live wire led from the power supply access socket on the outdoor side to the indoor side only needs to bear the load current of the indoor unit, reducing the demand for wires, lowering the wire cost of the air-conditioning system, and thus being able to achieve low-cost standby control when taking power from the outdoor side.

[0035] Other features and advantages of the present invention will be described in the following specification, and some of them will become obvious from the specification or be understood by implementing the present invention. The objectives and other advantages of the present invention can be achieved and obtained through the structures specifically pointed out in the specification, claims, and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] The drawings are used to provide a further understanding of the technical solutions of the present invention, and constitute a part of the specification. They are used together with the embodiments of the present invention to explain the technical solutions of the present invention, and do not constitute a limitation to the technical solutions of the present invention.

[0037] The present invention will be further described below with reference to the drawings and embodiments;

[0038] Figure 1 is a schematic structural diagram of an air-conditioning system provided by an embodiment of the present invention;

[0039] Figure 2 is a schematic structural diagram of an air-conditioning system provided by another embodiment of the present invention;

[0040] Figure 3 is a schematic structural diagram of an air-conditioning system provided by another embodiment of the present invention;

[0041] Figure 4 is a circuit diagram of the power control module provided by an embodiment of the present invention;

[0042] Figure 5 is a structural diagram of the current loop communication module of the air-conditioning system provided by an embodiment of the present invention;

[0043] Figure 6 is a circuit diagram of the current loop communication module of the air-conditioning system provided by an embodiment of the present invention;

[0044] Figure 7It is a partial circuit diagram of the intelligent power module of the air conditioning system provided by the implementation of the present invention;

[0045] Figure 8 It is a flowchart of the standby control method of the air conditioning system provided by the embodiment of the present invention;

[0046] Figure 9 It is a flowchart of the wake-up control method of the air conditioning system provided by the embodiment of the present invention;

[0047] Figure 10 It is a flowchart of the wake-up control method of the air conditioning system provided by another embodiment of the present invention;

[0048] Figure 11 It is a flowchart of the control method of the outdoor controller provided by the embodiment of the present invention;

[0049] Figure 12 It is a flowchart of the standby control method of the indoor unit provided by the implementation of the present invention;

[0050] Figure 13 It is a flowchart of the standby control method of the outdoor unit provided by the embodiment of the present invention;

[0051] Figure 14 It is a schematic structural diagram of an operation control device provided by the embodiment of the present invention. Specific Embodiments

[0052] This part will describe the specific embodiments of the present invention in detail. The preferred embodiments of the present invention are shown in the drawings. The function of the drawings is to supplement the description of the text part of the specification, enabling people to intuitively and vividly understand each technical feature and the overall technical solution of the present invention, but it cannot be understood as a limitation on the protection scope of the present invention.

[0053] In the description of the present invention, the meaning of several is one or more, the meaning of multiple is more than two, understand greater than, less than, exceeding, etc. as not including the number itself, understand above, below, within, etc. as including the number itself, "at least one" means one or more, "at least one of the following" and its similar expressions mean any combination of these items, including any combination of single items or plural items. If there is a description of first and second, it is only for the purpose of distinguishing technical features and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or implicitly indicating the sequence relationship of the indicated technical features.

[0054] It should be noted that in the embodiments of the present invention, words such as "set", "install", and "connect" should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in the embodiments of the present invention in combination with the specific content of the technical solution. For example, the term "connect" can be a mechanical connection, an electrical connection, or a connection that allows mutual communication; it can be directly connected or indirectly connected through an intermediate medium.

[0055] It should be noted that the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0056] In the description of the present invention, unless otherwise clearly defined, words such as "set", "install", and "connect" should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in the present invention in combination with the specific content of the technical solution.

[0057] Currently, an air-conditioning system includes an indoor unit and an outdoor unit. Generally, the indoor unit supplies power to the outdoor 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 an air-conditioning system with outdoor power supply, in order to achieve the low-power mode of the air-conditioning system, the indoor unit needs to be connected to the wiring terminal board of the outdoor unit through a zero-fire connection wire to obtain power, and then the indoor unit supplies power to the load of the outdoor unit through a power cord. Thus, the indoor unit can cut off the power supply to the outdoor unit by cutting off the power cord. This power supply method requires the live wire to bear the load current of the entire air-conditioning system, which has high requirements for the live wire and results in high wire cost.

[0058] Based on this, the present invention provides an air conditioning system, a standby control method, an operation control device, and a storage medium. When the outdoor side of the air conditioning system is powered, the intelligent power module obtains power through the power supply access socket. Among them, 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 primary load through the second power supply port. The outdoor controller can control whether the second power supply port can supply power to the primary load through the power control module, so as to control the primary load to cut off power, and thus can realize the standby control of the outdoor unit. On the indoor side of the air conditioning system, the indoor unit can obtain power by connecting to the power supply access socket of the outdoor unit through the power supply interface. 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, flexibly realizing standby control. Therefore, the air conditioning system provided by the embodiments of the present invention optimizes the wiring method between the indoor unit and the outdoor unit. When the outdoor side is powered, it is not necessary to control the power lines on the indoor side and the outdoor side to realize standby control, and the live wire led from the power supply access socket on the outdoor side to the indoor side only needs to bear the load current of the indoor unit, reducing the demand for wires, so that the wire cost of the air conditioning system is reduced, and thus low-cost standby control can be realized when the outdoor side is powered.

[0059] The following further elaborates on the embodiments of the present invention with reference to the accompanying drawings.

[0060] Refer to Figure 1 , Figure 1 FIG. is a schematic structural diagram of an air conditioning system provided by an embodiment of the present invention. It can be understood that the air conditioning system includes an outdoor unit and an indoor unit. When the outdoor side is powered, the outdoor unit includes an outdoor controller 200, a power supply access 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 supply input port, a first power supply port 410, and a second power supply port 420. Among them, the intelligent power module 400 has the function of converting the external power obtained from the power supply 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 respectively connected to the second power supply port 420 and the outdoor controller 200. The power control module 300 is used to control the conduction and cut-off of the second power supply port 420 in the intelligent power module 400. Therefore, the power control module 300 can control the conduction and cut-off of the second power supply port 420 according to the signal sent by the outdoor controller 200, and further control whether the second power supply port 420 can supply power to the primary load 500, realizing the standby control of the primary load 500.

[0061] When there is a problem with the external power supply, simply disconnect the power supply access socket 100 to cut off the power supply from the external power supply to the intelligent power module 400, avoiding damage to the intelligent power module 400 and increasing 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 operation of the outdoor unit load, and then output it through the first power supply port 410 and the second power supply port 420.

[0062] The indoor unit includes a power supply interface 700, an indoor controller 600, and an indoor load. The power supply interface 700 is respectively connected to the indoor controller 600, the indoor load, and the power supply access socket 100. The power supply interface 700 is used to connect to the power supply access socket 100 of the outdoor unit to obtain power and deliver the power to the indoor load and the indoor controller 600. The indoor controller 600 is communicatively connected to the outdoor controller 200, enabling the outdoor unit to control the power control module 300 according to the communication signal sent by the indoor controller 600, and flexibly realizing the standby control of the outdoor unit. Therefore, the live wire led from the power supply access socket 100 on the outdoor side to the indoor side only needs to bear the load current of the indoor unit, and at the same time, there is no need to control the power lines on the indoor side and the outdoor side to achieve standby control, reducing the demand for wires, reducing the wire cost of the air conditioning system, and thus being able to achieve low-cost standby control when taking power from the outdoor side.

[0063] It should be noted that the external power supply is transmitted to the indoor unit and the outdoor unit through the power supply access socket 100. When there is a problem with the external power supply, simply disconnect the power supply access socket 100 to cut off the power supply from the external power supply to the outdoor unit and the indoor unit, avoiding damage to the outdoor unit and the indoor unit, and increasing the service life of the outdoor unit and the indoor unit.

[0064] It can be understood that by communicatively connecting 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 further control the working state of the power control module 300. Among them, the communication connection method can be signal wave communication or current loop communication.

[0065] It should be noted that in a multi-connected air conditioning system, directly communicatively connecting the indoor controller 600 and the outdoor controller 200 without controlling the power lines on the indoor side and the outdoor side to achieve standby control reduces the wire cost of the air conditioning system.

[0066] 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. For example, it can control the intelligent power module 400 to turn off the second power supply port 420, so that the primary load 500 connected to the second power supply port 420 is powered off and stops working. 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 working state of the outdoor controller 200. Therefore, the outdoor controller 200 will maintain its current working state after the primary load 500 stops working. Compared with the prior art solution of using the outdoor controller 200 to send control signals to control the primary load 500 to enter the sleep mode or shut down, etc., in the embodiment of the present invention, by cutting off the power input of the primary load 500 to stop power supply to the primary load 500 and only retaining the power supply of the outdoor controller 200, the power consumption required for standby of the air-conditioning system can be more effectively reduced.

[0067] 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 supply input port and the second power supply port 420. The outdoor controller 200 controls the opening and closing of the switch end of the relay by controlling the control end of the relay, so as to be able to control whether the second power supply port 420 is connected to the power supply input port to obtain power, and further be 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, after the control end of the relay receives the high-level signal, it controls the switch end to close, and the second power supply port 420 can obtain power from the power supply input port and provide the converted DC power supply to the primary load 500.

[0068] As Figure 1 In the structural schematic diagram of the air-conditioning system shown, the second power supply port 420 is connected to the primary load 500, and the primary load 500 is directly powered through the second power supply port 420. For example, the second power supply port 420 directly provides the working voltage for the compressor and the fan. The power control module 300 is used to control the conduction and cut-off of the second power supply port 420. By controlling the working state of the power control module 300 through the outdoor controller 200, the working state of the second power supply port 420, that is, conduction and cut-off, can be further controlled.

[0069] Referring to Figure 2 , Figure 2It is a schematic structural diagram of an air conditioning system provided by another embodiment of the present invention. It can be understood that the power control module 300 is respectively connected to the outdoor controller, the second power supply port 420, and the primary load. After the intelligent power module 400 converts the external power supply to the operating voltage required by the primary load 500, it is transmitted to the power control module 300 through the second power supply port 420, and then transmitted 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, so as to realize the standby control of the primary load 500.

[0070] It should be noted that the power control module 300 may include a triode. The outdoor controller 200 is connected to the base of the triode, the second power supply port 420 is connected to the collector of the triode, and the primary load 500 is connected to the emitter of the triode. The outdoor control controls whether the power control module 300 is in the shutdown state or the startup state by controlling the conduction and cutoff of the triode. For example, when the outdoor controller 200 sends a high-level signal to the base of the triode, the triode conducts, and the current transmitted by the second power supply port 420 flows into the power control module 300 through the triode, and the power control module 300 is in the startup state.

[0071] It should be noted that the power control module 300 may also include a MOS transistor. The outdoor controller 200 is connected to the gate of the MOS transistor, the second power supply port 420 is connected to the drain of the MOS transistor, and the power control module 300 is connected to the source of the MOS transistor. The outdoor controller 200 controls whether the power control module 300 is in the shutdown state or the startup state by controlling the conduction and cutoff of the MOS transistor. For example, when the outdoor controller 200 sends a high-level signal to the gate of the MOS transistor, the MOS transistor conducts, and the current transmitted by the second power supply port 420 flows into the power control module 300 through the MOS transistor, and the power control module 300 is in the startup state.

[0072] It should be noted that the power control module 300 may 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, so as to control the working state of the power control module 300.

[0073] Such as Figure 2In the structural schematic diagram of the air conditioning system shown, 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 respectively connected to the controller of the compressor and the controller of the blower. By controlling the conduction and cutoff of the power control module 300 through the outdoor controller 200, it can further control whether the current of the second power supply port 420 can enter the controller of the primary load 500 through the power control module 300. By connecting the power control module 300 to the controller of the primary load 500, the power control module 300 can be prevented from bearing a large current, thereby improving the service life of the power control module 300.

[0074] Referring to Figure 3 , Figure 3 FIG. is a structural schematic diagram of an air conditioning system provided by another embodiment of the present invention. It can be understood that the outdoor unit further includes a primary load 500 and a secondary load 510. The secondary load 510 is respectively connected to the outdoor controller 200 and the first power supply port 410, 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, improving the control efficiency of the air conditioning system. The power control module 300 is respectively connected to the second power supply port 420 and the outdoor controller 200, 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, realizing the standby control of the primary load 500.

[0075] It can be understood that the operating power of the primary load 500 can be higher than that of the secondary load 510. During the operation of the load, power fluctuations may occur. The higher the operating power, the greater the abnormal voltage generated by the power fluctuation. Connecting the primary load 500 with a higher operating power to the second power supply port 420 and connecting the secondary load 510 with a lower operating power to the outdoor controller 200 can prevent the abnormal voltage borne by the outdoor controller 200 from exceeding the tolerance range of the outdoor controller 200. For example, the primary load 500 can be high-power loads such as compressors and blowers, and the secondary load 510 can be low-power loads such as four-way valves, electronic expansion valves, and soft start relays. By controlling the working state of the power control module 300 through the outdoor controller 200, and then controlling the working state of the primary load 500, the outdoor controller 200 can ultimately control the working state of the primary load 500.

[0076] It should be noted that the intelligent power module 400 further includes a DC power supply unit. The DC power supply unit can be connected to the power supply access base 100 through the power supply input port, and is connected to the outdoor controller 200 and the secondary load 510 through the first power supply port 410, and at the same time is connected to the primary load 500 through the second power supply port 420. Thus, it can obtain an external power supply through the power supply input port, filter, rectify, and boost the external power supply to convert the current input by the external power supply into direct currents of multiple different voltages, and then can provide DC power supplies of different voltage levels to the outdoor controller 200, the secondary load 510, and the primary load 500 respectively.

[0077] Referring to Figure 4 , Figure 4 is the circuit diagram of the power control module provided by the embodiment of the present invention. It can be understood that the power control module 300 includes a first switching transistor Q1 and a second switching transistor Q2. The control pin of the first switching transistor Q1 is connected to the control terminal DAIJI of the outdoor controller 200. The first switching pin of the first switching transistor Q1 is grounded. The second switching pin of the second switching transistor Q2 is connected to the primary load 500. The intelligent power module 400 is respectively connected to the second switching pin of the first switching transistor Q1, the control pin of the second switching transistor Q2, and the second switching pin of the second switching transistor Q2.

[0078] The outdoor controller 200 can control the conduction and cutoff of the first switching transistor Q1 by sending different level signals to the control pin of the first switching transistor Q1, and further control the conduction and cutoff of the second switching transistor Q2. When the second switching transistor Q2 is in the cutoff state, the current delivered by the intelligent power module 400 cannot enter the primary load 500 through the second switching transistor Q2, and the primary load 500 stops working. Therefore, by controlling the working state of the first switching transistor Q1, the outdoor controller 200 can control whether the primary load 500 is in the shutdown state or the startup state. 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 first switching transistor Q1 according to the signal sent by the indoor controller 600, and further control whether the primary load 500 is in the shutdown state or the startup state.

[0079] Specifically, when the first switching transistor Q1 is an NPN-type triode and the second switching transistor Q2 is a PNP-type triode, in the initial state, the control pin of the first switching transistor Q1 is at a low level, and the first switching transistor Q1 is in the cutoff state. The current provided by the intelligent power module 400 cannot pass through the first switching transistor Q1. Therefore, the control pin of the second switching transistor Q2 is at a high level, and the second switching transistor Q2 is in the cutoff state. The current provided by the intelligent power module 400 cannot pass through the second switching transistor Q2, and thus the current provided by the intelligent power module 400 cannot enter the primary load 500 through the second switching transistor Q2.

[0080] When the outdoor controller 200 sends a high-level signal to the control pin of the first switching transistor Q1, the first switching transistor Q1 conducts, and the current provided by the intelligent power module 400 directly flows out through the first switching transistor Q1. The control pin of the second switching transistor Q2 becomes low level, and the second switching transistor Q2 conducts. The current provided by the intelligent power module 400 enters the primary load 500 through the second switching transistor Q2. By controlling the operating state of the first switching transistor Q1, the outdoor controller 200 can control the operating state of the second switching transistor Q2, and further control whether the intelligent power module 400 supplies power to the primary load 500. When the second switching transistor Q2 is in the cut-off state, the intelligent power module 400 cannot supply power to the primary load 500, and the primary load 500 will be in the shutdown state, that is, the standby state.

[0081] Specifically, both the first switching transistor Q1 and the second switching transistor Q2 can be PNP-type triodes. In the initial state, the control pin of the first switching transistor Q1 is at a high level, and the first switching transistor Q1 is in the cut-off state. The current provided by the intelligent power module 400 cannot pass through the first switching transistor Q1. Therefore, the control pin of the second switching transistor Q2 is at a high level, and the second switching transistor Q2 is in the cut-off state. The current provided by the intelligent power module 400 cannot pass through the second switching transistor Q2, and thus the current provided by the intelligent power module 400 cannot enter the primary load 500 through the second switching transistor Q2. When the outdoor controller 200 stops sending a high-level signal to the control pin of the first switching transistor Q1, the first switching transistor Q1 conducts, and the current provided by the intelligent power module 400 directly flows out through the first switching transistor Q1. The control pin of the second switching transistor Q2 becomes low level, and the second switching transistor Q2 conducts. The current provided by the intelligent power module 400 enters the primary load 500 through the second switching transistor Q2.

[0082] Specifically, the first switching transistor Q1 can also be an N-type MOS transistor, and the second switching transistor Q2 can also be a P-type triode. The gate of the first switching transistor Q1 is connected to the outdoor controller 200, the source of the first switching transistor Q1 is grounded, the source of the second switching transistor Q2 is connected to the primary load 500, and the intelligent power module 400 is respectively connected to the drain of the first switching transistor Q1, the drain of the second switching transistor Q2, and the gate of the second switching transistor Q2. In the initial state, the source of the first switching transistor Q1 is at a low level, and the first switching transistor Q1 is in the cut-off state. The current provided by the intelligent power module 400 cannot pass through the first switching transistor Q1. Therefore, the source of the second switching transistor Q2 is at a high level, and the second switching transistor Q2 is in the cut-off state. The current provided by the intelligent power module 400 cannot pass through the second switching transistor Q2, and thus the current provided by the intelligent power module 400 cannot enter the primary load 500 through the second switching transistor Q2.

[0083] When the outdoor controller 200 sends a high-level signal to the control grid of the first switching transistor Q1, the first switching transistor Q1 is turned on, and the current provided by the intelligent power module 400 directly flows out through the first switching transistor Q1. The gate of the second switching transistor Q2 changes from high level to low level, and the second switching transistor Q2 is turned on. The current provided by the intelligent power module 400 enters the primary load through the second switching transistor Q2.

[0084] Referring to Figure 5 , Figure 5 is the structural diagram of the current-loop communication module of the air-conditioning system provided by the embodiment of the present invention. It can be 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 through the indoor communication module 610. After receiving the signal sent by the indoor communication module 610, the outdoor communication module will feedback it to the outdoor controller 200. The outdoor controller 200 can also send a control signal to the indoor communication module 610 through the outdoor communication module. After receiving the signal sent by the outdoor communication module, the indoor communication module 610 will feedback it to the indoor controller 600. For example, when 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 through the indoor communication module 610, and the outdoor communication module will feedback the signal to the outdoor controller 200 after receiving it.

[0085] After the outdoor controller 200 receives the signal, it controls the first switching transistor Q1 to cut off, the intelligent power module 400 stops supplying power to the primary load 500, the primary load 500 stops working, and the primary load enters the standby state. In addition, the outdoor controller 200 can also send a feedback signal to the indoor communication module 610 through the outdoor communication module. After receiving the feedback signal, the indoor communication module 610 will feedback it 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 setting the indoor communication module 610 and the outdoor communication module, the reliability of communication can be improved, and signal loss or signal error caused by long-distance communication between the indoor controller 600 and the outdoor controller 200 can be avoided.

[0086] Referring to Figure 6 , Figure 6 is the circuit diagram of the current-loop communication module of the air-conditioning system provided by the embodiment of the present invention.

[0087] It can be understood that the outdoor communication module 210 includes a first optocoupler device IC1 and an outdoor communication switching transistor Q3, and the indoor communication module 610 includes a second optocoupler device IC2 and an indoor communication switching transistor Q4. Among them, the indoor controller 600 can be an indoor MCU, and the outdoor controller 200 can be an outdoor MCU.

[0088] The positive input terminal of the first optocoupler device IC1 is respectively connected to the first switching pin of the outdoor communication switching transistor Q3 and the first power supply port 410. The negative input terminal of the first optocoupler device IC1 is connected to the connection point between the first switching pin of the outdoor communication switching transistor Q3 and the first power supply port 410. The control pin of the outdoor communication switching transistor Q3 is connected to the sending end of the outdoor controller 200, and the second switching pin of the outdoor communication switching transistor Q3 is grounded.

[0089] The positive input terminal of the second optocoupler device IC2 is respectively connected to the first switching pin of the indoor communication switching transistor Q4 and the power supply interface 700. The negative input terminal of the second optocoupler device IC2 is connected to the connection point between the first switching pin of the indoor communication switching transistor Q4 and the power supply interface 700. The control pin of the indoor communication switching transistor Q4 is connected to the sending end of the indoor controller 600, and the second switching pin of the indoor communication switching transistor 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. 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.

[0090] Through the connection between the first power supply port 410 and the positive input terminal 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 conducting state. The indoor controller 600 can control the working state of the indoor communication switching transistor Q4, and further control the working state of the second optocoupler device IC2, and finally realize signal communication.

[0091] It should be noted that a first voltage-dividing resistor is also provided between the negative input terminal of the second optocoupler device IC2 and the power supply interface 700. By setting the first voltage-dividing resistor, the short circuit between the negative input terminal and the positive input terminal of the second optocoupler device IC2 can be avoided.

[0092] It should be noted that a second voltage-dividing resistor is also provided between the negative input terminal of the first optocoupler device IC1 and the first power supply port 410. By setting the second voltage-dividing resistor, the short circuit between the negative input terminal and the positive input terminal of the first optocoupler device IC1 can be avoided.

[0093] It should be noted that the connection between the first power supply port 410 and the positive input terminal of the first optocoupler device IC1 enables the first optocoupler device IC1 to be continuously lit, that is, the receiving end of the first optocoupler device IC1 remains in a conducting 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 device IC2 to be lit, that is, the indoor controller 600 controls the indoor communication tube to conduct. When the input terminal of the second optocoupler device IC2 is lit, the receiving end of the second optocoupler device IC2 changes from a cut-off state to a conducting state, and the current in the circuit loop forms a loop, and the current flows into the receiving end of the outdoor controller 200, and the receiving end of the outdoor controller 200 becomes high level. By controlling the high and low level changes of the receiving end of the outdoor controller 200, signal transmission is achieved.

[0094] It can be understood that the outdoor communication module further includes a third optocoupler device IC3, and the indoor communication module 610 further includes a fourth optocoupler device IC4. The positive input terminal of the third optocoupler device IC3 is connected to the first receiving end of the second optocoupler device IC2, the negative input terminal of the third optocoupler is connected to the first receiving end of the first optocoupler, the positive input terminal of the fourth optocoupler device IC4 is connected to the second receiving end of the first optocoupler device IC1, and the negative input terminal of the fourth optocoupler device IC4 is connected to the second receiving end of the second optocoupler device IC2. By setting the first optocoupler device IC1, the second optocoupler device IC2, the third optocoupler device IC3, and the fourth optocoupler device IC4, the current in the circuit loop communication module only flows in the circuit loop communication module, avoiding the current in the circuit loop communication module being directly transmitted to the indoor controller 600 and the outdoor controller 200, resulting in damage to the indoor controller 600 and the outdoor controller 200.

[0095] It should be noted that when the outdoor communication switch tube Q3 and the indoor communication switch tube Q4 are triodes, the control pin is the base of the triode. The indoor controller 600 and the outdoor controller 200 only need to change the level signal of the base of the triode to control the conduction of the triode, and then control the lighting of the input terminal of the second optocoupler device IC2 and the input terminal of the first optocoupler device IC1 to achieve signal transmission.

[0096] 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 terminal of the second optocoupler device IC2 and the input terminal of the first optocoupler device IC1 to achieve signal transmission.

[0097] It should be noted that the first receiving end of the third optocoupler device IC3 is connected to the receiving end of the outdoor controller 200, and the second receiving end of the third optocoupler device IC3 is connected to the first power supply port 410. When the first receiving end is turned on, the receiving end of the outdoor controller 200 is at a high level. In addition, the first receiving end of the third optocoupler device IC3 can also be respectively connected to the first power supply port 410 and the receiving end of the outdoor controller 200, and the second receiving end of the third optocoupler device IC3 is grounded. When the first receiving end is turned on, the receiving end of the outdoor controller 200 is at a low level.

[0098] 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 the neutral line, and a live wire for providing working current for the current loop communication module 900 is also connected between the receiving end of the second optocoupler device IC2 and the input end of the third optocoupler device IC3.

[0099] It should be noted that the indoor unit further includes a DC power supply module for converting an external power supply into a DC power supply. The DC power supply module is arranged between the first switching pin of the indoor communication switching transistor Q4 and the power supply interface 700, converts the power supply input by the power supply interface 700 into a DC power supply and then delivers it to the first switching pin of the indoor communication switching transistor Q4.

[0100] It can be understood that the current loop communication module 900 further includes a current loop voltage stabilization module 910. The current loop voltage stabilization module 910 is composed of a voltage stabilizing diode DZ1, a first filter capacitor C1, a second filter capacitor E1, a first resistor R1, a second resistor R2 and a diode D1. Among them, the diode D1 rectifies the alternating current between the neutral line and the live wire into a direct current. The first resistor R1 and the second resistor R2 play a role in voltage division and current limiting, so that the voltage applied to the voltage stabilizing diode DZ1 is reduced. The voltage stabilizing diode DZ1 stabilizes the DC voltage filtered by the first filter capacitor C1 and the second filter capacitor E1 and then loads it on the current loop communication loop to provide the voltage required for the normal operation of the current loop communication loop. For example, when the working voltage of the current loop communication loop is 24V, compared with the alternating voltage between the live wire and the neutral line such as 220V, the second resistor R2 needs to bear more voltage drop. Therefore, a resistor with a larger power needs to be selected, such as a resistor with a resistance value of 12K ohms can be selected. It should be noted that the position of the above current loop voltage stabilization 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 it can be placed in the outdoor unit part as long as it can provide the working voltage for the current loop communication loop.

[0101] Refer to Figure 7 , Figure 7It is a partial circuit diagram of the intelligent power module of the air conditioning system provided by the implementation of the present invention. 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 access socket 100, and the input voltage of the power supply access socket 100 is stepped down 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 a variety of loads to provide drive voltage for different loads. By setting up a multi-stage buck circuit, the voltage input by the power supply access socket 100 can be stepped down to meet the requirements of different loads in the air conditioning system.

[0102] Refer to Figure 8 , Figure 8 It is a flowchart of the standby control method of the air conditioning system provided by the embodiment of the present invention. The standby control method of this air conditioning system can be applied to the above air conditioning system. The standby control method includes but is not limited to the following steps:

[0103] Step S100, in response to the standby signal, control the electrical loads in the indoor unit except the indoor communication module to stop operating, and send a standby instruction signal to the outdoor controller;

[0104] Step S200, in response to the standby response signal sent by the outdoor controller, provide a cut-off signal for closing the indoor communication switch tube to the control pin of the indoor communication switch tube.

[0105] It can be understood that after the indoor controller 600 receives the standby signal sent by the user, the indoor controller 600 controls the electrical loads in the indoor unit except the indoor communication module 620 to stop operating and sends a standby instruction signal to the outdoor controller 200 according to the received standby signal. The outdoor controller 200 sends a standby control signal for stopping the power supply operation of the second power supply port 420 to the first-level load to the power control module 300 according to the received standby instruction signal. After receiving the standby control signal, the power control module 300 controls the second power supply port 420 to stop working, thereby causing the first-level load 500 connected to the second power supply port 420 to stop working, that is, the air-conditioning system enters the standby state. When the outdoor controller 200 receives the standby instruction 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 truncation signal for closing the indoor communication module 610 to the control pin of the indoor communication switch transistor Q4. By closing the indoor communication module 610, it is possible to prevent the outdoor controller 200 from continuously sending signals to the outdoor controller 200, thereby causing the outdoor controller 200 to be mis-triggered.

[0106] It should be noted that by controlling the electrical loads in the indoor unit except the indoor communication module 620 to stop operating, the power consumption of the air-conditioning system in the standby state can be effectively reduced.

[0107] It should be noted that only when the air-conditioning system is in the normal working state, the indoor controller 600 will perform standby control. When the air-conditioning system is in the standby state, the indoor controller 600 will not perform any operations after receiving the standby signal sent by the user.

[0108] Specifically, when the air-conditioning system needs to enter the standby state, the sending end of the indoor controller 600 controls the indoor communication switch transistor Q4 to conduct, the input end of the second optocoupler device IC2 is lit, the receiving end of the second optocoupler device IC2 conducts, and 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. This current signal can be regarded as the standby instruction 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 truncation signal to the first switch transistor Q1, and the first switch transistor 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.

[0109] After the receiving end of the outdoor controller 200 receives the standby instruction signal, the sending end of the outdoor controller 200 sends a cut-off signal for turning off the outdoor communication switch tube Q3 to the control pin of the outdoor communication switch tube Q3. The outdoor communication switch tube Q3 enters the cut-off state. Further, 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 sending end of the indoor controller 600 sends a cut-off 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 circuit is cut off.

[0110] Refer to Figure 9 , Figure 9 is a flowchart of the wake-up control method for the air-conditioning system provided by the embodiment of the present invention. The standby control method of the air-conditioning system can be applied to the above air-conditioning system. The standby control method includes but is not limited to the following steps:

[0111] Step S300, in response to the wake-up signal, control the electrical load in the indoor unit to operate according to the wake-up signal, and send a wake-up instruction signal to the outdoor controller.

[0112] It can be understood that when the air-conditioning system is in the standby state, after the indoor controller 600 receives the wake-up signal sent by the user, the indoor controller 600 controls the electrical load in the indoor unit to operate according to the received wake-up signal, and sends a wake-up instruction 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 instruction signal. After receiving the wake-up control signal, the power control module 300 enters the working state, the second power supply port 420 starts to work, and the primary load 500 connected to the second power supply port 420 also starts to work, that is, the air-conditioning system enters the wake-up state.

[0113] Specifically, the sending end of the indoor controller 600 controls the indoor communication switch tube Q4 to change from the cut-off state to the conducting state. The input end of the second optocoupler device IC2 is lit, the receiving end of the second optocoupler device IC2 is conducting, 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. This current signal can be considered as the wake-up instruction signal sent by the indoor controller 600.

[0114] After the receiving end of the outdoor controller 200 receives the current signal, the outdoor controller 200 sends a conduction signal to the first switching transistor Q1, and the first switching transistor Q1 enters the conduction state, that is, the power control module 300 starts to work, and then the second power supply port 420 starts to work, and the primary load 500 connected to the second power supply port 420 also starts to work, and the air-conditioning system enters the wake-up state.

[0115] Refer to Figure 10 , Figure 10 FIG. is a flowchart of a wake-up control method for an air-conditioning system provided by an embodiment of the present invention. The standby control method of the air-conditioning system can be applied to the above air-conditioning system, and the standby control method includes but is not limited to the following steps:

[0116] Step S310, in response to the wake-up signal, control the electrical load in the indoor unit to operate according to the wake-up signal, and provide a conduction signal for turning on the indoor communication switching transistor to the control pin of the indoor communication switching transistor;

[0117] Step S320, send a wake-up instruction signal to the outdoor controller through the indoor communication module.

[0118] It can be understood that when the air-conditioning system is in the standby state, after the indoor controller 600 receives the wake-up signal sent by the user, the indoor controller 600 controls the electrical load in the indoor unit to operate, and controls the indoor communication switching transistor Q4 to enter the conduction state. When the indoor communication switching transistor Q4 is in the conduction state, the indoor controller 600 sends a wake-up instruction signal to the outdoor controller 200 through the indoor communication module 610 to make the outdoor unit enter the wake-up state.

[0119] Specifically, the sending end of the indoor controller 600 controls the indoor communication switching transistor Q4 to change from the cut-off state to the conduction 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 conducts, 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 the current signal, and this current signal can be regarded as the wake-up instruction signal sent by the indoor communication module 610.

[0120] Refer to Figure 11 , Figure 11 FIG. is a flowchart of a wake-up control method for an air-conditioning system provided by an embodiment of the present invention. The standby control method of the air-conditioning system can be applied to the above air-conditioning system, and the standby control method includes but is not limited to the following steps:

[0121] Step S400, in response to the standby instruction signal sent by the indoor controller, send a standby control signal for stopping the second power supply port from supplying power to the primary load to the power control module, and operate the standby mode.

[0122] It can be understood that after the outdoor controller 200 receives the standby instruction 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, thereby causing the primary load 500 connected to the second power supply port 420 to stop working, that is, the air conditioning system enters the standby state.

[0123] Specifically, after the receiving end of the outdoor controller 200 receives the standby instruction signal, the outdoor controller 200 sends a cut-off signal to the first switching transistor Q1, and the first switching transistor 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 primary load 500 connected to the second power supply port 420 also stops working.

[0124] It should be noted that after the outdoor controller 200 sends the standby control signal to the power control module 300, it 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.

[0125] Specifically, after the receiving end of the outdoor controller 200 receives the standby instruction signal, the sending end of the outdoor controller 200 sends a cut-off signal for closing the outdoor communication switching transistor Q3 to the control pin of the outdoor communication switching transistor Q3. The outdoor communication switching transistor 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 at the receiving end of the indoor controller 600 becomes a low-level signal. This low-level signal can be regarded as the standby response signal sent by the outdoor controller 200.

[0126] It should be noted that when the outdoor communication switching transistor Q3 enters the cut-off state for a period of time, the sending end of the outdoor controller 200 will also send a conduction signal for conducting the outdoor communication switching transistor Q3 to the control pin of the outdoor communication switching transistor Q3, so that the input end of the first optocoupler device IC1 continues to emit light, to avoid the situation that the outdoor controller 200 cannot receive the wake-up control signal sent by the indoor controller 600 in time due to the cut-off of the receiving end of the first optocoupler device IC1. Among them, the time when the outdoor communication switching transistor Q3 enters the cut-off state can be adjusted according to the actual situation.

[0127] Refer to Figure 11 , Figure 11It is a flowchart of the wake-up control method for the air conditioning system provided by the embodiment of the present invention. The standby control method of the air conditioning system can be applied to the above-mentioned air conditioning system, and the standby control method includes but is not limited to the following steps:

[0128] Step S500, in response to the wake-up instruction signal sent by the indoor controller, send a wake-up control signal for controlling the second power supply port to supply power to the primary load to the power control module.

[0129] 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 instruction signal. After receiving the wake-up control signal, the power control module 300 enters the working state, the second power supply port 420 starts to work, and the primary load 500 connected to the second power supply port 420 also starts to work, that is, the air conditioning system enters the wake-up state.

[0130] Specifically, the outdoor controller 200 sends a conduction signal to the first switching transistor Q1, and the first switching transistor Q1 enters the conduction state, that is, the power control module 300 starts to work, and then the second power supply port 420 starts to work, and the primary load 500 connected to the second power supply port 420 also starts to work, and the air conditioning system enters the wake-up state.

[0131] 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.

[0132] Specifically, after the receiving end of the outdoor controller 200 receives the wake-up instruction signal, the sending end of the outdoor controller 200 sends a truncation signal for closing the outdoor communication switching transistor Q3 to the control pin of the outdoor communication switching transistor Q3. The outdoor communication switching transistor 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 at the receiving end of the indoor controller 600 becomes a low-level signal. This low-level signal can be regarded as the wake-up response signal sent by the outdoor controller 200.

[0133] It should be noted that when the outdoor communication switch tube Q3 enters the cut-off state for a period of time, the sending end of the outdoor controller 200 will still send a conduction signal for conducting the outdoor communication switch tube Q3 to the control pin of the outdoor communication switch tube Q3, so that the input end of the first optocoupler device IC1 continues to emit light, avoiding the situation that the outdoor controller 200 cannot receive the wake-up control signal sent by the indoor controller 600 in time due to the cut-off of the receiving end of the first optocoupler device IC1. Among them, the time when the outdoor communication switch tube Q3 enters the cut-off state can be adjusted according to the actual situation.

[0134] Referring to Figure 12 , Figure 12 is a flowchart of the standby control method for the indoor unit provided by the embodiment of the present invention. It can be understood that the indoor controller 600 will obtain the working state of the indoor unit before working. If there is abnormal information in the indoor unit, the indoor unit will give a warning 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 the standby state, the indoor controller 600 will continue to work only after receiving the wake-up command. Similarly, when the air-conditioning system is in the wake-up state, the indoor controller 600 will continue to work only after receiving the standby command. Among them, the wake-up command can be a wake-up control signal, and the standby command can be a standby control signal.

[0135] When the indoor controller 600 runs the wake-up command, the sending end of the indoor controller 600 controls the indoor communication switch transistor Q4 to change from the cut-off state to the conducting state. The input end of the second optocoupler device IC2 is lit, the receiving end of the second optocoupler device IC2 conducts, and 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. The outdoor unit enters the wake-up state and returns a signal through the current loop communication module 900. The indoor unit controller analyzes the signal returned by the outdoor unit controller. If the signal returned by the outdoor unit controller is abnormal, the indoor unit will give a warning to remind the user to perform maintenance. If the signal returned by the outdoor unit controller is normal, 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 the signal returned by the outdoor controller 200 is abnormal, the indoor unit will give a warning to remind the user to perform maintenance. Different from when the indoor controller 600 runs the wake-up command, under the standby command, regardless of whether the signal returned by the outdoor controller 200 is abnormal, the indoor controller 600 will still control the indoor communication switch transistor Q4 to change from the conducting state to the cut-off state, thereby turning off the second optocoupler device IC2 and stopping the current transmission in the current loop communication module 900.

[0136] Refer to Figure 13 , Figure 13 is a flowchart of the standby control method for the outdoor unit provided by the embodiment of the present invention. It can be understood that the outdoor controller 200 controls the outdoor communication switch transistor Q3 to remain in the conducting state, thereby keeping the input end 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 states 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 states of the compressor or the fan according to the command. Among them, the wake-up command can be a wake-up control signal, and the standby command can be a standby control signal.

[0137] During the communication between the outdoor controller 200 and the indoor controller 600, if the outdoor controller 200 does not receive the signal sent by the indoor controller 600 for a long time, the outdoor controller 200 will determine whether the air conditioning system is turned on. If the air conditioning system is in the on state, the outdoor controller 200 sends a control signal to the power control module 300 to turn off the second power supply port 420, thereby turning off the second power supply port 420 and also turning off the primary load 500 connected to the second power supply port 420, causing the air conditioning system to enter the standby mode. When the outdoor controller 200 receives the wake-up command, the outdoor controller 200 controls the soft-start relay to turn on, returns an acknowledgment of the wake-up command to the indoor controller 600, and then controls the power control module 300 to turn on.

[0138] It should be noted that in the current loop signal module, the indoor controller 600 can control the conduction and cut-off of the indoor communication switching transistor Q4, thereby controlling the lighting and extinguishing of the second optocoupler device IC2, and finally changing the current transmission state in the current loop communication module 900. When the current in the current loop communication module 900 flows, 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, and signal transmission can be achieved.

[0139] Fourthly, referring to Figure 14 , an embodiment of the present invention 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 in the second aspect embodiment above. For example, execute Figure 8 the method steps S100 to S200 in Figure 9 the method steps S300 in Figure 10 and the method steps S310 to S320 in Figure 10 , or implement the standby control method of the air conditioning system in the third aspect embodiment above. For example, execute

[0140] the method steps S400 to S500 in

[0141] The memory 1410 may include a program storage area and a data storage area. 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 for implementing the standby control method of the air-conditioning system in the above embodiments, etc. In addition, the memory 1410 may include a high-speed random access memory 1410, and may also include a non-transitory memory 1410, such as at least one magnetic disk storage device, a flash memory device, or other non-transitory solid-state storage devices. It should be noted that the memory 1410 may optionally include a memory 1410 remotely provided with respect to the processor 1420, and these remote memories 1410 may be connected to the terminal through a network. Examples of the above network include but are not limited to the Internet, an enterprise intranet, a local area network, a mobile communication network, and combinations thereof.

[0142] In a fifth aspect, an embodiment of the present invention provides a computer-readable storage medium storing computer-executable instructions for causing a computer to execute the standby control method of the air-conditioning system in the second aspect embodiment above, for example, to execute Figure 8 method steps S100 to S200 in Figure 9 and method steps S300 in Figure 10 and method steps S310 to S320 in Figure 10 or to implement the standby control method of the air-conditioning system in the third aspect embodiment above, for example, to execute Figure 10 method steps S400 to S500 in

[0143] Those of ordinary skill in the art will understand that all or some of the steps and systems disclosed in the above methods can be implemented as software, firmware, hardware, and their appropriate combinations. Some physical components or all 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 can be implemented as hardware, or can be implemented as an integrated circuit, such as an application specific integrated circuit. Such software can be distributed on a computer-readable medium, which can include a computer storage medium or a non-transitory medium and a communication medium or a transitory medium. As is well known to those of ordinary skill in the art, the term computer storage medium 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 technologies, CD-ROM, digital versatile disk (DVD) or other optical disk storage, magnetic cassettes, tapes, magnetic disk storage or other magnetic storage devices, or any other medium that can be used to store the desired information and can be accessed by a computer. In addition, as is well known to those of ordinary skill in the art, communication media typically contains computer-readable instructions, data structures, program modules, or other data in a modulated data signal such as a carrier wave or other transmission mechanism, and can include any information delivery medium.

[0144] The embodiments of the present invention have been described in detail above in conjunction with the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those of ordinary skill in the art in the said technical field, various changes can be made without departing from the gist of the present invention.

Claims

1. An air conditioning system, characterized in that, Comprising: An outdoor unit, including an outdoor controller, a power supply access socket for accessing 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 supply input port connected to the power supply access 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, and 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 of the outdoor controller; An indoor unit, including a power supply interface connected to the power supply access socket for supplying power to 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 a communication signal sent by the indoor controller.

2. The air conditioning system according to claim 1, characterized in that, 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.

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

4. The air conditioning system according to claim 1, wherein The air-conditioning system further includes a current-loop communication module, and 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.

5. The air conditioning system according to claim 4, characterized in that, The outdoor communication module includes a first opto-coupler device and an outdoor communication switching tube. A positive input terminal of the first opto-coupler device is connected to a first switching pin of the outdoor communication switching tube and is simultaneously connected to the first power supply port. A control pin of the outdoor communication switching tube is connected to the outdoor controller, and a second switching pin of the outdoor communication switching tube is grounded.

6. The air conditioning system according to claim 4, wherein The indoor communication module includes a second opto-coupler device and an indoor communication switching tube. A positive input terminal of the second opto-coupler device is connected to a first switching pin of the indoor communication switching tube and is simultaneously connected to a DC power supply module for converting an external power supply into a DC power supply. A control pin of the indoor communication switching tube is connected to the indoor controller, a second switching pin of the indoor communication switching 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, characterized in that, An indoor controller applied to the air-conditioning system according to any one of claims 1 to 6, and the standby control method includes: In response to a standby signal, controlling power-consuming loads other than the indoor communication module in the indoor unit to stop operating, and sending a standby instruction signal to the outdoor controller, so that the outdoor controller sends a standby control signal for stopping the second power supply port from supplying power to the primary load to the power control module.

8. The standby control method according to claim 7, wherein An indoor controller applied to the air conditioning system as described in claim 6. After the indoor controller sends a standby instruction signal to the outdoor controller, it includes: In response to the standby response signal sent by the outdoor unit, providing a cut-off signal for turning off the indoor communication switch tube to the control pin of the indoor communication switch tube.

9. The standby control method according to claim 7, wherein The standby control method further includes: 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 sending a wake-up instruction signal to the outdoor controller, so that the outdoor controller sends a wake-up control signal for controlling the second power supply port to supply power to the primary load to the power control module.

10. The standby control method according to claim 9, wherein, An indoor controller applied to the air conditioning system as described in claim 6. The step of, 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 sending a wake-up instruction signal to the outdoor controller includes: 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 conduction signal for turning on the indoor communication switch tube to the control pin of the indoor communication switch tube; Sending a wake-up instruction signal to the outdoor controller through the indoor communication module.

11. A standby control method for an air conditioning system, characterized in that, An outdoor controller applied to the air conditioning system as described in any one of claims 1 to 6. The standby control method includes: In response to the standby instruction signal sent by the indoor controller, sending a standby control signal for stopping the second power supply port from supplying power to the primary load to the power control module, and operating in the standby mode.

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

13. The standby control method according to claim 11, characterized in that, The standby control method further includes: In response to the wake-up instruction signal sent by the indoor controller, 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.

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

15. An operation control device, characterized in that, It includes a memory, a processor, and a computer program stored on the memory and executable on the processor. The processor executes the program to implement the standby control method of the air conditioning system as described in any one of claims 7 to 14.

16. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores computer-executable instructions, and the computer-executable instructions are used to cause a computer to execute the standby control method of the air conditioning system as described in any one of claims 7 to 14.

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