Air conditioner control circuit and air conditioner

Abstract

The present application provides an air conditioner control circuit and an air conditioner, and relates to the technical field of air conditioners. The air conditioner control circuit and controller provided by the present application are provided with an internal unit wake-up unit and an external unit wake-up unit between an external unit system and an internal unit system. The external unit wake-up unit is awakened by the internal unit wake-up unit, and the external unit wake-up unit is awakened by the external unit wake-up unit. In a low-power standby state, both the internal unit wake-up unit and the external unit wake-up unit do not work, the external system is completely powered off, and the power consumption is reduced to zero, thereby reducing the system power consumption in the low-power standby state.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioners, and in particular to an air conditioner control circuit and an air conditioner. Background Art

[0002] The current energy situation is becoming increasingly tense, and the useless loss of household appliances in standby mode cannot be ignored. Take air conditioners as an example. At present, most air conditioners are in standby mode, and both the internal and external controllers are in power working state. The live and neutral wires of the power supply are connected to the internal and external controller units at the same time in standby mode, and the power supply units of the internal and external units are in working state, which actually causes power loss, especially in variable frequency air conditioners, where the loss is more obvious. Summary of the invention

[0003] The problem solved by the present invention is that after the air conditioner is in standby mode, some components of the outdoor system are still powered on and running, and the problem of power consumption still exists in the standby mode.

[0004] To solve the above problems, the technical solutions adopted in this application are as follows:

[0005] In a first aspect, the present invention provides an air conditioner control circuit, the air conditioner control circuit is applied to an air conditioner, the control circuit includes a power supply, an indoor system and an outdoor system; the indoor system includes an indoor controller and an indoor wake-up unit, the outdoor system includes an outdoor wake-up unit and an outdoor controller;

[0006] The internal machine wake-up unit comprises an internal machine wake-up unit first end, an internal machine wake-up unit second end and an internal machine wake-up unit control end;

[0007] The external machine wake-up unit comprises an external machine wake-up unit first end, an external machine wake-up unit second end and an external machine wake-up unit control end;

[0008] The control end of the internal machine wake-up unit is connected to the internal machine controller, the first end of the internal machine wake-up unit is electrically connected to the power supply, and the second end of the internal machine wake-up unit is connected to the control end of the external machine wake-up unit;

[0009] A first end of the external machine awakening unit is electrically connected to the power supply, and a second end of the external machine awakening unit is electrically connected to the external machine controller;

[0010] When the air conditioner is operating in a low-power standby state, the indoor controller controls the first end of the indoor wake-up unit to be disconnected from the second end of the indoor wake-up unit, the outdoor wake-up unit loses power, disconnects from the power supply, and the outdoor system is completely powered off;

[0011] When the air conditioner is started, the indoor controller controls the first end of the indoor wake-up unit to be connected with the second end of the indoor wake-up unit, the outdoor wake-up unit is powered on, the first end of the outdoor wake-up unit is connected with the second end of the outdoor wake-up unit, and the outdoor controller is powered on and awakened.

[0012] The air conditioner control circuit provided in the present application sets an internal unit wake-up unit and an external unit wake-up unit between the external unit system and the internal unit system. The external unit wake-up unit is awakened by the internal unit wake-up unit, and the external unit wake-up unit is used to wake up the external controller. In the low-power standby state, both the internal unit wake-up unit and the external unit wake-up unit do not work, the external system is completely powered off, and the power consumption is reduced to zero, thereby reducing the system power consumption in the low-power standby state.

[0013] In an optional embodiment, the external machine wake-up unit includes a PTC resistor, and the PTC resistor is arranged between the first end of the external machine wake-up unit and the second end of the external machine wake-up unit;

[0014] The PTC resistor is used for charging and preheating when the external machine wake-up unit wakes up the external machine controller.

[0015] In an optional embodiment, the external system further includes an external power control unit, and the external power control unit includes an external power control unit first end, an external power control unit second end, and an external power control unit control end;

[0016] The control end of the external power control unit is connected to the external controller, the first end of the external power control unit is electrically connected to the first end of the external wake-up unit, and the second end of the external power control unit is electrically connected to the second end of the external wake-up unit;

[0017] The external machine controller is used to send a control signal to the control terminal of the external machine power supply control unit after the PTC resistor is charged for a first preset time period;

[0018] The external power control unit is used to connect the first end of the external power control unit with the second end of the external power control unit according to the control signal of the external controller, to power the external system, and at the same time short-circuit the PTC resistor of the external wake-up unit.

[0019] In an optional embodiment, the indoor system includes an indoor communication unit and an indoor communication control unit, and the indoor communication unit includes an indoor communication control unit control end, an indoor communication control unit first end and an indoor communication control unit second end;

[0020] The control end of the indoor communication control unit is connected to the indoor controller, the indoor communication control unit is electrically connected to the power supply, and the second end of the indoor communication control unit is electrically connected to the indoor communication unit;

[0021] The indoor controller is used to control the first end of the indoor communication control unit to be connected with the second end of the indoor communication control unit after the outdoor power control unit is turned on for a second preset time, so as to supply power to the indoor communication unit.

[0022] In an optional embodiment, the external unit system includes an external unit communication unit and an external unit communication control unit, and the external unit communication control unit includes an external unit communication control unit control end, an external unit communication control unit first end, and an external unit communication control unit second end;

[0023] The control end of the external unit communication control unit is connected to the external unit controller, the first end of the external unit communication control unit is electrically connected to the internal unit communication unit, and the second end of the external unit communication control unit is electrically connected to the external unit communication unit;

[0024] The external machine controller is used to control the first end of the external machine communication control unit to be connected with the second end of the external machine communication control unit when the internal machine communication unit is powered on, so as to establish a communication connection between the internal machine communication unit and the external machine communication unit.

[0025] In an optional implementation, the indoor unit controller is used to control the indoor unit wake-up unit to stop running when the outdoor unit power supply control unit is turned on, and the outdoor unit wake-up unit stops running when power is lost.

[0026] In an optional embodiment, after a preset time has passed since the indoor unit controller receives a shutdown command, the indoor unit controller sends a command to the outdoor unit communication unit via the indoor unit communication unit, so that the outdoor unit controller controls the first end of the outdoor unit power control unit to disconnect from the second end of the outdoor unit power control unit, thereby disconnecting the power supply of the outdoor unit system, and the air conditioner enters a low power consumption state.

[0027] In an optional implementation, when the power supply of the external unit system is disconnected, the external unit communication control unit loses power, the first end of the external unit communication control unit is disconnected from the second end of the external unit communication control unit, and the external unit communication unit stops working.

[0028] In an optional embodiment, the indoor unit controller is used to control the first end of the indoor unit communication control unit to disconnect from the second end of the indoor unit communication control unit after the outdoor unit system is powered off, so that the indoor unit communication unit loses power and stops working.

[0029] In a second aspect, the present application further provides an air conditioner, comprising an air conditioner control circuit as described in any one of the above. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 A schematic diagram of an air conditioner control circuit provided in this embodiment;

[0031] Figure 2 A schematic diagram of another air conditioner control circuit provided in this embodiment;

[0032] Figure 3 A circuit diagram of an air conditioner control circuit provided in this embodiment.

[0033] Description of reference numerals:

[0034] 10-air conditioner control circuit; 100-indoor system; 110-indoor controller; 120-indoor wake-up unit; A1-indoor wake-up unit first end; A2-indoor wake-up unit second end; A3-indoor wake-up unit control end; 130-indoor communication control unit; 140-indoor communication unit; D1-indoor communication control unit first end; D2-indoor communication control unit second end; D3-indoor communication control unit control end; 200-outdoor system; 210-outdoor controller; 220-outdoor wake-up Unit; B1-first end of the external unit wake-up unit; B2-second end of the external unit wake-up unit; B3-control end of the external unit wake-up unit; 230-external unit power control unit; C1-first end of the external unit power control unit; C2-second end of the external unit power control unit; C3-control end of the external unit power control unit; 240-external unit communication control unit; E1-first end of the external unit communication control unit; E2-second end of the external unit communication control unit; E3-control end of the external unit communication control unit; 250-external unit communication unit; 300-power supply. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0036] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0037] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0038] In the description of the present invention, it should be noted that if the terms "upper", "lower", "inside", "outside", etc. appear to indicate an orientation or position relationship, they are based on the orientation or position relationship shown in the accompanying drawings, or are the orientation or position relationship in which the product of the invention is usually placed when used. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0039] In addition, the terms “first”, “second”, etc., if used, are merely used to distinguish between the descriptions and should not be understood as indicating or implying relative importance.

[0040] Power consumption is an important indicator of household appliances, and the useless loss of household appliances in standby mode cannot be ignored. Take air conditioners as an example. At present, most air conditioners are in standby mode, and both the indoor and outdoor controllers are in power working state. The live and neutral wires of the power supply are connected to the indoor and outdoor controller units at the same time in standby mode, and the power supply units of the indoor and outdoor units are in working state, which actually causes power loss, especially in variable frequency air conditioners, where the loss is more obvious.

[0041] In order to reduce the overall power consumption of the air conditioner system, this embodiment provides an air conditioner control circuit. Figure 1 , Figure 1 A schematic diagram of an air conditioner control circuit 10 provided in an embodiment of the present application is shown.

[0042] The air conditioner control circuit 10 of the present application is applied to the air conditioner, and the control circuit includes a power supply 300, an indoor system 100 and an outdoor system 200; wherein the indoor system 100 includes an indoor controller 110, an indoor wake-up unit 120, an indoor communication unit 140, and an indoor communication control unit 130; the outdoor system 200 includes an outdoor wake-up unit 220, an outdoor controller 210, an outdoor power control unit 230, an outdoor communication unit 250 and an outdoor communication control unit 240.

[0043] Among them, see Figure 2The internal machine wake-up unit 120 includes an internal machine wake-up unit first end A1, an internal machine wake-up unit second end A2 and an internal machine wake-up unit control end A3; the external machine wake-up unit 220 includes an external machine wake-up unit first end B1, an external machine wake-up unit second end B2 and an external machine wake-up unit control end B3; the internal machine wake-up unit control end A3 is connected to the internal machine controller 110, the internal machine wake-up unit first end A1 is electrically connected to the power supply 300, and the internal machine wake-up unit second end A2 is connected to the external machine wake-up unit control end B3.

[0044] The indoor unit wake-up unit 120 is used to be turned on or off under the control of the indoor unit controller 110. When the first terminal A1 of the indoor unit wake-up unit is connected to the second terminal A2 of the indoor unit wake-up unit, the outdoor unit wake-up unit 220 is connected to the power supply 300, and the outdoor unit wake-up unit 220 is powered on and starts to work.

[0045] The external unit wake-up unit 220 is used to wake up the external unit controller 210 of the external unit system 200, wherein the first end B1 of the external unit wake-up unit is electrically connected to the power supply 300, and the second end B2 of the external unit wake-up unit is electrically connected to the external unit controller 210; when the air conditioner is started from the shutdown state, the internal unit controller 110 receives a power-on signal and controls the internal unit wake-up unit 120 to be turned on. When the internal unit wake-up unit 120 is turned on, the control end B3 of the external unit wake-up unit receives a signal, the first end B1 of the external unit wake-up unit is connected to the second end B2 of the external unit wake-up unit, and the external unit controller 210 is powered on and awakened.

[0046] In an optional embodiment, the external unit wake-up unit 220 includes a PTC resistor, which is arranged between the first end B1 of the external unit wake-up unit and the second end B2 of the external unit wake-up unit. The PTC resistor is used for charging and preheating when the external unit wake-up unit 220 wakes up the external unit controller 210. When the first end B1 of the external unit wake-up unit is connected to the second end B2 of the external unit wake-up unit, the PTC resistor is energized.

[0047] The external power control unit 230 includes a first terminal C1 of the external power control unit, a second terminal C2 of the external power control unit, and a control terminal C3 of the external power control unit; the control terminal C3 of the external power control unit is connected to the external controller 210, the first terminal C1 of the external power control unit is electrically connected to the first terminal B1 of the external wake-up unit, and the second terminal C2 of the external power control unit is electrically connected to the second terminal B2 of the external wake-up unit; the external controller 210 is used to send a control signal to the control terminal C3 of the external power control unit after the PTC resistor is charged for a first preset time;

[0048] After the external machine controller 210 is powered on and awakened, the external machine power control unit 230 is used to connect the first end C1 of the external machine power control unit with the second end C2 of the external machine power control unit according to the control signal of the external machine controller 210 to power the external machine system 200, and at the same time short-circuit the PTC resistor of the external machine awakening unit 220, and the PTC resistor stops running.

[0049] In some possible implementations, the indoor system 100 includes an indoor communication unit 140 and an indoor communication control unit 130, the indoor communication control unit 130 includes an indoor communication control unit control terminal D3, an indoor communication control unit first terminal D1 and an indoor communication control unit second terminal D2; the indoor communication control unit control terminal D3 is connected to the indoor controller 110, the indoor communication control unit first terminal D1 is electrically connected to the power supply 300, and the indoor communication control unit second terminal D2 is electrically connected to the indoor communication unit 140; the indoor controller 110 is used to control the indoor communication control unit first terminal D1 and the indoor communication control unit second terminal D2 to be connected after the external power supply control unit 230 is connected for a second preset period of time, so as to supply power 300 to the indoor communication unit 140.

[0050] In some possible implementations, the external unit system 200 includes an external unit communication unit 250 and an external unit communication control unit 240, the external unit communication control unit 240 includes an external unit communication control unit control terminal E3, an external unit communication control unit first terminal E1 and an external unit communication control unit second terminal E2; the external unit communication control unit control terminal E3 is connected to the external unit controller 210, the external unit communication control unit first terminal E1 is electrically connected to the indoor unit communication unit 140, and the external unit communication control unit second terminal E2 is electrically connected to the external unit communication unit 250; the external unit controller 210 is used to control the external unit communication control unit first terminal E1 to be connected to the external unit communication control unit second terminal E2 when the indoor unit communication unit 140 is connected to the power supply 300, so as to establish a communication connection between the indoor unit communication unit 140 and the external unit communication unit 250.

[0051] In some possible implementations, the indoor controller 110 is used to control the indoor wake-up unit 120 to stop running when the outdoor power supply control unit 230 is turned on, and at the same time, the outdoor wake-up unit 220 loses power and stops running.

[0052] In some possible implementations, when the air conditioner is in operation, if the indoor controller 110 receives a shutdown command after a preset time, the indoor controller 110 sends a command to the outdoor communication unit 250 through the indoor communication unit 140, so that the outdoor controller 210 controls the first end C1 of the outdoor power control unit to disconnect from the second end C2 of the outdoor power control unit, disconnects the power of the outdoor system 200, and the air conditioner enters a low power consumption state.

[0053] When the power of the outdoor system 200 is disconnected, the outdoor communication control unit 240 loses power, the first terminal E1 of the outdoor communication control unit is disconnected from the second terminal E2 of the outdoor communication control unit, and the outdoor communication unit 250 stops working. The indoor controller 110 is used to control the first terminal D1 of the indoor communication control unit to be disconnected from the second terminal D2 of the indoor communication control unit after the power of the outdoor system 200 is disconnected, and the indoor communication unit 140 loses power and stops working.

[0054] The working principle of the air conditioner control circuit 10 provided in this embodiment is introduced below. In order to facilitate the understanding of the present application, this embodiment introduces the air conditioner control circuit 10 provided in the embodiment of the present application with a process of power-on startup-standby-low power standby.

[0055] When the air conditioner is powered on, it is in a standby state. At this time, the power supply of the outdoor system 200 is not turned on, and the outdoor system 200 has zero power consumption.

[0056] When the air conditioner receives the start signal, the indoor unit controller 110 outputs a control signal to the indoor unit wake-up unit control terminal A3, the indoor unit wake-up unit first terminal A1 is connected to the indoor unit wake-up unit second terminal A2, the outdoor unit wake-up unit 220 is powered on and starts working, the outdoor unit wake-up unit first terminal B1 is connected to the outdoor unit wake-up unit second terminal B2, and the outdoor unit wake-up unit first terminal B1 is connected to the power supply 300, after the outdoor unit wake-up unit second terminal B2 is connected to the outdoor unit wake-up unit first terminal B1, power is supplied to the outdoor system 200, and the outdoor controller 210 of the outdoor system 200 is powered on.

[0057] At the same time, the PTC resistor of the external unit wake-up unit 220 is also preheating the external unit controller 210. After the preheating time is reached, generally, more than 2 seconds, the external unit controller 210 outputs a control signal to the control terminal C3 of the external unit power control unit, and the first terminal C1 of the external unit power control unit is connected to the second terminal C2 of the external unit power control unit to supply power to the external unit system 200. At the same time, the PTC resistor is short-circuited. After the internal unit controller 110 controls the internal unit wake-up unit 120 to stop working, the external unit wake-up unit 220 stops working immediately.

[0058] At this time, the outdoor system 200 has been powered on, the indoor controller 110 outputs a control signal to the control terminal D3 of the indoor communication control unit, the first terminal D1 of the indoor communication control unit is connected to the second terminal D2 of the indoor communication control unit, the power supply 300 of the indoor communication unit 140 is turned on, and the indoor communication unit 140 is powered on and starts running.

[0059] After the indoor communication unit 140 is powered on, the outdoor controller 210 outputs a control signal to the control terminal E3 of the outdoor communication control unit, the first terminal E1 of the outdoor communication control unit is connected to the second terminal E2 of the outdoor communication control unit, and the outdoor communication unit 250 is connected to the indoor communication unit 140. The outdoor communication unit 250 is connected to the indoor communication unit 140 through a communication line, and the outdoor communication unit 250 starts to run.

[0060] At this time, the outdoor system 200 has been powered on, the indoor communication unit 140 and the outdoor communication unit 250 are both in working state, and the indoor unit and the outdoor unit of the air conditioner can operate normally.

[0061] During the operation of the air conditioner, if the indoor controller 110 receives a shutdown signal, the air conditioner system is controlled to enter a standby state. In this embodiment, the standby state refers to maintaining the current operating state. If no power-on command is received after entering the standby state for R seconds, the air conditioner is controlled to enter a low-power standby state. In the low-power standby state, the outdoor system 200 is completely powered off and no power consumption is generated.

[0062] For example, first, after entering the low power consumption state, the external machine controller 210 sends a control signal to the control terminal C3 of the external machine power control unit, so that the external machine power control unit 230 stops working, the first terminal C1 of the external machine power control unit is disconnected from the second terminal C2 of the external machine power control unit, and the power supply 300 of the external machine system 200 is disconnected. At this time, all functional modules in the external machine system 200 lose power connection, and the external machine system 200 does not generate power consumption.

[0063] Optionally, after the outdoor system 200 is powered off, the indoor controller 110 sends a control signal to the control terminal D3 of the indoor communication control unit to stop the indoor communication control unit 130, and the first terminal D1 of the indoor communication control unit is disconnected from the second terminal D2 of the indoor communication control unit, and the indoor communication unit 140 loses power and stops working.

[0064] When the air conditioner is operating in a low-power standby state, if the system receives a start-up signal, the indoor controller 110 controls the first end A1 of the indoor wake-up unit to be connected with the second end A2 of the indoor wake-up unit, the outdoor wake-up unit 220 is powered on, the first end B1 of the outdoor wake-up unit is connected with the second end B2 of the outdoor wake-up unit, and the outdoor controller 210 is powered on and awakened.

[0065] Combine the following Figure 3 , the specific implementation of the air conditioner control circuit 10 provided in this embodiment is introduced. In a possible implementation, the indoor unit wake-up unit 120 and the indoor unit communication control unit 130 can be implemented by optical coupling, such as Figure 3In the figure, the indoor unit wake-up unit 120 is implemented by an optocoupler U1, and the indoor unit communication control unit 130 is implemented by an optocoupler U2. Since the air conditioner is powered by 220V or higher voltage, the optocoupler can be used to achieve electrical isolation to prevent large current and high voltage from damaging the control device.

[0066] The indoor communication unit 140 includes an indoor communication receiving end and an indoor communication sending end, both of which are connected to the indoor controller 110. The indoor communication unit 140 is also connected to the outdoor communication unit 250 via a communication line through the outdoor communication control unit 240.

[0067] The external machine awakening unit 220 includes a relay K2. When the optical coupler U1 of the internal machine awakening unit 120 is turned on, the relay K2 is turned on, and the external machine controller 210 is powered on and awakened. The on-time of the relay K2 is the same as the on-time of the optical coupler U1 of the internal machine awakening unit 120.

[0068] The external power supply control unit 230 includes a relay K1. When the external controller 210 sends a control signal to the relay K1, the relay K1 is turned on, and the power 300 is supplied to the external system 200 through the relay K1. Similarly, the external communication control unit 240 can use an optical coupler, such as the optical coupler U3 in the figure. The internal communication unit 140 is connected to the external communication unit 250 through the optical coupler U3. When the optical coupler U3 is turned on under the control of the external controller 210, the external communication unit 250 is connected to the internal communication unit 140.

[0069] The above-mentioned indoor controller 110 and outdoor controller 210 can be an integrated circuit chip with signal processing capability, such as a general-purpose processor, including a central processing unit (CPU), a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field programmable gate array (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, single-chip microcomputers, etc.

[0070] The present application also provides an air conditioner, which includes the air conditioner control circuit provided by the above embodiment.

[0071] To summarize, the air conditioner control circuit and controller provided in the present application set an internal unit wake-up unit and an external unit wake-up unit between the external unit system and the internal unit system, and the external unit wake-up unit is awakened by the internal unit wake-up unit, and the external unit wake-up unit is used to wake up the external controller. In the low-power standby state, the internal unit wake-up unit and the external unit wake-up unit do not work, the external system is completely powered off, the power consumption is reduced to zero, and the system power consumption in the low-power standby state is reduced.

[0072] Although the present invention is disclosed as above, the present invention is not limited thereto. Any person skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the scope defined by the claims.

Claims

1. An air conditioner control circuit, characterized in that: The air conditioner control circuit is applied to the air conditioner, and the control circuit includes a power supply, an indoor system and an outdoor system; the indoor system includes an indoor controller, an indoor wake-up unit, an indoor communication unit and an indoor communication control unit, the outdoor system includes an outdoor wake-up unit, an outdoor power control unit and an outdoor controller, and the indoor communication unit includes an indoor communication control unit control end, an indoor communication control unit first end and an indoor communication control unit second end; The internal machine wake-up unit comprises an internal machine wake-up unit first end, an internal machine wake-up unit second end and an internal machine wake-up unit control end; The external machine wake-up unit comprises an external machine wake-up unit first end, an external machine wake-up unit second end and an external machine wake-up unit control end; The control end of the internal machine wake-up unit is connected to the internal machine controller, the first end of the internal machine wake-up unit is electrically connected to the power supply, and the second end of the internal machine wake-up unit is connected to the control end of the external machine wake-up unit; A first end of the external machine awakening unit is electrically connected to the power supply, and a second end of the external machine awakening unit is electrically connected to the external machine controller; The control end of the indoor communication control unit is connected to the indoor controller, the indoor communication control unit is electrically connected to the power supply, and the second end of the indoor communication control unit is electrically connected to the indoor communication unit; The indoor controller is used to control the first end of the indoor communication control unit to be connected with the second end of the indoor communication control unit when the outdoor power control unit is turned on for a second preset time, so as to supply power to the indoor communication unit; When the air conditioner is operating in a low-power standby state, the indoor controller controls the first end of the indoor wake-up unit to be disconnected from the second end of the indoor wake-up unit, the outdoor wake-up unit loses power, disconnects from the power supply, and the outdoor system is completely powered off; When the air conditioner is started, the indoor controller controls the first end of the indoor wake-up unit to be connected with the second end of the indoor wake-up unit, the outdoor wake-up unit is powered on, the first end of the outdoor wake-up unit is connected with the second end of the outdoor wake-up unit, and the outdoor controller is powered on and awakened.

2. The air conditioner control circuit according to claim 1, characterized in that: The external machine wake-up unit comprises a PTC resistor, and the PTC resistor is arranged between the first end of the external machine wake-up unit and the second end of the external machine wake-up unit; The PTC resistor is used for charging and preheating when the external machine wake-up unit wakes up the external machine controller.

3. The air conditioner control circuit according to claim 2, characterized in that: The external power control unit comprises an external power control unit first end, an external power control unit second end and an external power control unit control end; The control end of the external power control unit is connected to the external controller, the first end of the external power control unit is electrically connected to the first end of the external wake-up unit, and the second end of the external power control unit is electrically connected to the second end of the external wake-up unit; The external machine controller is used to send a control signal to the control terminal of the external machine power supply control unit after the PTC resistor is charged for a first preset time period; The external power control unit is used to connect the first end of the external power control unit with the second end of the external power control unit according to the control signal of the external controller, to power the external system, and at the same time short-circuit the PTC resistor of the external wake-up unit.

4. The air conditioner control circuit according to claim 1, characterized in that: The external unit system includes an external unit communication unit and an external unit communication control unit, wherein the external unit communication control unit includes an external unit communication control unit control end, an external unit communication control unit first end and an external unit communication control unit second end; The control end of the external unit communication control unit is connected to the external unit controller, the first end of the external unit communication control unit is electrically connected to the internal unit communication unit, and the second end of the external unit communication control unit is electrically connected to the external unit communication unit; The external machine controller is used to control the first end of the external machine communication control unit to be connected with the second end of the external machine communication control unit when the internal machine communication unit is powered on, so as to establish a communication connection between the internal machine communication unit and the external machine communication unit.

5. The air conditioner control circuit according to claim 4, characterized in that: The indoor unit controller is used to control the indoor unit wake-up unit to stop running when the outdoor unit power supply control unit is turned on, and the outdoor unit wake-up unit stops running when power is lost.

6. The air conditioner control circuit according to claim 5, characterized in that: When the indoor controller receives the shutdown command after a preset time, the indoor controller sends a command to the outdoor communication unit through the indoor communication unit, so that the outdoor controller controls the first end of the outdoor power control unit to disconnect from the second end of the outdoor power control unit, disconnects the power of the outdoor system, and the air conditioner enters a low power consumption state.

7. The air conditioner control circuit according to claim 6, characterized in that: When the power supply of the external unit system is disconnected, the external unit communication control unit loses power, the first end of the external unit communication control unit is disconnected from the second end of the external unit communication control unit, and the external unit communication unit stops working.

8. The air conditioner control circuit according to claim 7, characterized in that: The indoor unit controller is used to control the first end of the indoor unit communication control unit to be disconnected from the second end of the indoor unit communication control unit after the outdoor unit system is powered off, so that the indoor unit communication unit loses power and stops working.

9. An air conditioner, characterized in that: The air conditioner comprises the air conditioner control circuit as described in any one of claims 1 to 8.

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