WO2024113971A1 - 空调系统及其供电控制装置和供电控制方法 - Google Patents

空调系统及其供电控制装置和供电控制方法 Download PDF

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Publication number
WO2024113971A1
WO2024113971A1 PCT/CN2023/113611 CN2023113611W WO2024113971A1 WO 2024113971 A1 WO2024113971 A1 WO 2024113971A1 CN 2023113611 W CN2023113611 W CN 2023113611W WO 2024113971 A1 WO2024113971 A1 WO 2024113971A1
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Prior art keywords
unit
power supply
indoor
indoor unit
power
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PCT/CN2023/113611
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English (en)
French (fr)
Inventor
李章玉
玉维友
黄永林
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广东美的制冷设备有限公司
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Publication of WO2024113971A1 publication Critical patent/WO2024113971A1/zh

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  • the present disclosure relates to the technical field of air-conditioning systems, and in particular to a power supply control device for an air-conditioning system, an air-conditioning system, and a power supply control method for an air-conditioning system.
  • Air conditioning systems are generally referred to as refrigeration or heating systems composed of outdoor units, indoor units and terminal equipment.
  • a one-to-many air conditioning system generally refers to an outdoor unit with two or more indoor units.
  • the power supply schemes of a one-to-many air conditioning system include: 1) the indoor unit and the outdoor unit are powered separately; 2) the outdoor unit supplies power to the indoor unit.
  • more than two power supply interfaces and control switches are required, resulting in complex installation of the air conditioning system.
  • the outdoor unit electronic control design needs to reserve more than two indoor unit power supply interfaces and control relays, which will make the wiring of the outdoor unit complicated.
  • the present disclosure aims to solve at least one of the technical problems in the related art to a certain extent.
  • the first purpose of the present disclosure is to provide a power supply control device for an air-conditioning system, which converts the AC power provided by the indoor unit through a power supply to supply power to a main control unit, and the main control unit controls one of the power supply control switch units to be closed, so that the corresponding indoor unit supplies power to the outdoor unit, thereby ensuring the normal operation of the air-conditioning system.
  • a second objective of the present disclosure is to provide an air conditioning system.
  • a third objective of the present disclosure is to provide a power supply control method for an air conditioning system.
  • an embodiment of the first aspect of the present disclosure proposes a power supply control device for an air-conditioning system, wherein the air-conditioning system includes an outdoor unit and multiple indoor units, each of which is suitable for being respectively connected to a power supply, and the power supply control device includes: multiple power supply control switch units, each of which is respectively connected to a power supply circuit between a corresponding indoor unit and an outdoor unit; a power supply unit and a main control unit, wherein the power supply unit is configured to convert the alternating current provided by each indoor unit into direct current to power the main control unit, and the main control unit is configured to control one of the multiple power supply control switch units to be closed so that the corresponding indoor unit supplies power to the outdoor unit.
  • the air conditioning system includes an outdoor unit and multiple indoor units, each of which is suitable for being connected to a power supply source respectively
  • the power supply control device includes: multiple power supply control switch units, each of which is respectively connected to the power supply circuit between the corresponding indoor unit and the outdoor unit, and converts the AC power provided by each indoor unit into DC power through the power supply unit to power the main control unit, and the main control unit controls the multiple power supply control switches One of the units is closed so that the corresponding indoor unit supplies power to the outdoor unit.
  • the device converts the AC power provided by the indoor unit through the power supply to supply power to the main control unit, and the main control unit controls one of the power supply control switch units to be closed so that the corresponding indoor unit supplies power to the outdoor unit, thereby ensuring the normal operation of the air conditioning system.
  • the power supply control device for the air conditioning system may also have the following additional technical features:
  • the power supply unit includes: a plurality of rectifier circuits, each rectifier circuit being configured to rectify the alternating current provided by the corresponding indoor unit; and a switching power supply circuit being configured to convert the power output by each rectifier circuit into direct current.
  • a power-on control switch is further provided between each rectifier circuit and the corresponding indoor unit, and the power-on control switch is closed when the corresponding indoor unit is turned on, so that the turned-on indoor unit provides AC power to the corresponding rectifier circuit.
  • the power supply control device of the air-conditioning system also includes an outdoor unit communication unit and multiple indoor unit communication units, wherein the main control unit is also configured to communicate with the corresponding indoor unit through each indoor unit communication unit, and communicate with the outdoor unit through the outdoor unit communication unit.
  • the main control unit is also configured to, when only one indoor unit among multiple indoor units is turned on, communicate with the turned-on indoor unit through the indoor unit communication unit corresponding to the turned-on indoor unit to obtain a power-on instruction, and control the power supply control switch unit between the turned-on indoor unit and the outdoor unit to close according to the power-on instruction, and communicate with the outdoor unit through the outdoor unit communication unit.
  • the main control unit is also configured to communicate with the outdoor unit through the outdoor unit communication unit to notify the outdoor unit to shut down when the turned-on indoor unit is turned off, and to control the power supply control switch unit between the turned-on indoor unit and the outdoor unit to be disconnected after the outdoor unit is turned off.
  • the main control unit is also configured to notify the shut down indoor unit to disconnect the power-on control switch between the shut down indoor unit and the corresponding rectifier circuit after the power supply control switch unit between the shut down indoor unit and the outdoor unit is disconnected.
  • the rectifier circuits corresponding to the indoor units that need to be powered on operate simultaneously.
  • the main control unit is further configured to communicate with the indoor unit that is powered on first through the indoor unit communication unit corresponding to the indoor unit that is powered on first to obtain a power-on instruction, and control the power supply control switch unit between the indoor unit that is powered on first and the outdoor unit to close according to the power-on instruction, so as to supply power to the outdoor unit through the indoor unit that is powered on first, and when the indoor unit that is powered on later is powered on, communicate with the outdoor unit through the outdoor unit communication unit to adjust the operating parameters of the outdoor unit.
  • the main control unit is further configured to, when there are at least two indoor units working simultaneously among multiple indoor units, if the indoor unit that was turned on first is turned off, communicate with the indoor unit that was turned on first through the indoor unit communication unit corresponding to the indoor unit that was turned on first to obtain a shutdown instruction, adjust the operating parameters of the outdoor unit according to the shutdown instruction, and keep the power supply control switch unit between the indoor unit that was turned on first and the outdoor unit in a closed state.
  • the main control unit is further configured to, when at least two indoor units among the multiple indoor units are working at the same time, if the indoor unit that is turned on later is turned off, the indoor unit communication unit corresponding to the indoor unit that is turned on later communicates with the indoor unit that is turned on later.
  • the indoor unit that is powered on later communicates to obtain a shutdown instruction, adjusts the operating parameters of the outdoor unit according to the shutdown instruction, and notifies the indoor unit that is powered on later to disconnect the power-on control switch between the indoor unit that is powered on later and the corresponding rectifier circuit.
  • the main control unit is also configured to, when communicating with at least two of the multiple indoor units at the same time, determine the accumulated working time of the indoor units participating in the communication, and determine the indoor unit to be powered based on the accumulated working time.
  • the main control unit is further configured to, when there are at least two indoor units among a plurality of indoor units working simultaneously, if the indoor unit providing power loses power, determine the cumulative working time of the indoor units participating in the communication, and determine the indoor unit for power switching based on the cumulative working time, and after the power supply control switch unit between the indoor unit controlling the power failure and the outdoor unit is disconnected, the power supply control switch unit between the indoor unit controlling the power switching and the outdoor unit is closed.
  • a second aspect of the present disclosure provides an air-conditioning system, including the power supply control device of the air-conditioning system mentioned above.
  • the AC power provided by the indoor unit is converted by the power supply to power the main control unit.
  • the main control unit controls one of the power supply control switch units to be closed, so that the corresponding indoor unit supplies power to the outdoor unit, thereby ensuring the normal operation of the air-conditioning system.
  • the third aspect embodiment of the present disclosure proposes a power supply control method for an air-conditioning system, wherein the air-conditioning system includes an outdoor unit, multiple indoor units, and a centralized controller, each indoor unit is suitable for being respectively connected to a power supply, and a power supply control switch unit is provided in the power supply circuit between each indoor unit and the outdoor unit, and multiple indoor units supply power to the centralized controller at the same time.
  • the power supply control method for the air-conditioning system includes: in response to a power supply instruction, controlling one of the multiple power supply control switch units to be closed through the centralized controller so that the corresponding indoor unit supplies power to the outdoor unit.
  • the air-conditioning system includes an outdoor unit, multiple indoor units, and a centralized controller.
  • Each indoor unit is suitable for being connected to a power supply respectively.
  • a power supply control switch unit is provided in the power supply circuit between each indoor unit and the outdoor unit. Multiple indoor units supply power to the centralized controller at the same time.
  • the power supply control method of the air-conditioning system responds to the power supply instruction by controlling one of the multiple power supply control switch units to be closed through the centralized controller so that the corresponding indoor unit supplies power to the outdoor unit.
  • the method supplies power to the centralized controller through the indoor unit, and the centralized controller controls one of the power supply control switch units to be closed so that the corresponding indoor unit supplies power to the outdoor unit, thereby ensuring the normal operation of the air-conditioning system.
  • the power supply control method of the air conditioning system according to the above embodiment of the present disclosure may also have the following additional technical features:
  • the centralized controller includes a plurality of rectifier circuits and a switching power supply circuit, each rectifier circuit is configured to rectify the alternating current provided by the corresponding indoor unit, and the switching power supply circuit is configured to convert the power output by each rectifier circuit into direct current, wherein the closure of one of the plurality of power supply control switch units is controlled by the centralized controller, including: when only one indoor unit among the plurality of indoor units is turned on, communicating with the turned-on indoor unit through the indoor unit communication unit corresponding to the turned-on indoor unit to obtain a power-on instruction, and controlling the closure of the power supply control switch unit between the turned-on indoor unit and the outdoor unit according to the power-on instruction.
  • the power supply control method of the air-conditioning system when the turned-on indoor unit is turned off, also includes: communicating with the outdoor unit through the external unit communication unit to notify the outdoor unit to turn off the outdoor unit, and controlling the power supply control switch unit between the turned-on indoor unit and the outdoor unit to be disconnected after the outdoor unit is turned off.
  • the power supply control method of the air-conditioning system further includes: notifying the turned-off indoor unit to disconnect the power-on control switch between the turned-off indoor unit and the corresponding rectifier circuit.
  • the rectifier circuits corresponding to the indoor units that need to be turned on work simultaneously, wherein one of the plurality of power supply control switch units is controlled to be closed by a centralized controller, including: communicating with the indoor unit that is turned on first through the indoor unit communication unit corresponding to the indoor unit that is turned on first to obtain a power-on instruction, and controlling the power supply control switch unit between the indoor unit that is turned on first and the outdoor unit to be closed according to the power-on instruction, so as to supply power to the outdoor unit through the indoor unit that is turned on first.
  • the power supply control method of the air-conditioning system when there are at least two indoor units among a plurality of indoor units working simultaneously, the power supply control method of the air-conditioning system also includes: if the indoor unit that is turned on first is turned off, communicating with the indoor unit that is turned on first through the indoor unit communication unit corresponding to the indoor unit that is turned on first to obtain a shutdown instruction, adjusting the operating parameters of the outdoor unit according to the shutdown instruction, and keeping the power supply control switch unit between the indoor unit that is turned on first and the outdoor unit in a closed state.
  • the power supply control method of the air-conditioning system when there are at least two indoor units among multiple indoor units working simultaneously, the power supply control method of the air-conditioning system also includes: if the indoor unit that is turned on later is turned off, communicating with the indoor unit that is turned on later through the indoor unit communication unit corresponding to the indoor unit that is turned on later to obtain a shutdown instruction, and adjusting the operating parameters of the outdoor unit according to the shutdown instruction, and notifying the indoor unit that is turned on later to disconnect the power-on control switch between the indoor unit that is turned on later and the corresponding rectifier circuit.
  • the power supply control method of the air-conditioning system when communicating with at least two indoor units among multiple indoor units at the same time, also includes: determining the cumulative working time of the indoor units participating in the communication, and determining the indoor unit to be powered based on the cumulative working time.
  • the power supply control method of the air-conditioning system when at least two indoor units among a plurality of indoor units are working simultaneously, the power supply control method of the air-conditioning system further includes: if the indoor unit providing power loses power, determining the cumulative working time of the indoor units participating in the communication, and determining the indoor unit for power switching based on the cumulative working time, and after the power supply control switch unit between the indoor unit controlling the power failure and the outdoor unit is disconnected, the power supply control switch unit between the indoor unit controlling the power switching and the outdoor unit is closed.
  • FIG1 is a block diagram of a power supply control device for an air conditioning system according to an embodiment of the present disclosure
  • FIG2 is a block diagram of an air conditioning system according to a specific embodiment of the present disclosure.
  • FIG3 is a circuit topology diagram of a power supply control device for an air conditioning system according to an embodiment of the present disclosure
  • FIG4 is a circuit topology diagram of a power supply control device for an air conditioning system according to another embodiment of the present disclosure.
  • FIG5 is a block diagram of a power supply control device for an air conditioning system according to an embodiment of the present disclosure
  • FIG6 is a schematic diagram of current loop communication according to an embodiment of the present disclosure.
  • FIG7 is a block diagram of an air conditioning system according to an embodiment of the present disclosure.
  • FIG8 is a block diagram of an air conditioning system according to an embodiment of the present disclosure.
  • FIG. 9 is a flow chart of a power supply control method for an air conditioning system according to an embodiment of the present disclosure.
  • FIG. 1 is a block diagram of a power supply control device for an air conditioning system according to an embodiment of the present disclosure.
  • an air conditioning system 100 includes an outdoor unit 110 and a plurality of indoor units 120 , each of the indoor units 120 being adapted to be connected to a power supply 200 , respectively.
  • the air conditioning system 100 is a one-to-many air conditioning system with one outdoor unit 110 and multiple indoor units 120.
  • two indoor units 110 namely, indoor unit 1 and outdoor unit 2 are provided in the air conditioning system 100.
  • the indoor unit 1 and the indoor unit 2 are connected to the socket through a power plug.
  • the indoor unit 1 is connected to the power supply 1, and the power supply 1 supplies power to the indoor unit 1.
  • the indoor unit 2 is connected to the power supply 2, and the power supply 2 supplies power to the indoor unit 2.
  • the indoor unit 1 and the outdoor unit 2 are connected to the outdoor unit 110 respectively, and the outdoor unit 110 is powered by the indoor unit 1 or the outdoor unit 2.
  • the power supply method is separate and the outdoor unit supplies power to the indoor unit. This method is convenient to install. It can be understood that the power supply 200 can be provided with multiple power supplies corresponding to the indoor unit 120, or one power supply can be used to power multiple indoor units 120. The specific setting can be made according to the actual situation.
  • the power supply control device of the air conditioning system includes: a plurality of power supply control switch units 10 , a power supply unit 20 and a main control unit 30 .
  • Each power supply control switch unit 10 is respectively connected to the power supply circuit between the corresponding indoor unit 120 and the outdoor unit 110.
  • the power supply unit 20 is configured to convert the AC power provided by each indoor unit 110 into DC power to supply power to the main control unit 30, and the main control unit 30 is configured to control one of the multiple power supply control switch units 10 to be closed so that the corresponding indoor unit 120 supplies power to the outdoor unit 110.
  • the air conditioning system 100 includes two indoor units 120 as an example.
  • the number of power supply control switch units 10 in the power supply control device of the air conditioning system is consistent with the number of indoor units 120, including power supply control switch units 1 and power supply control switch units 2.
  • the power supply output end of the indoor unit 1 and the outdoor unit 110 form a first power supply circuit
  • the power supply control switch unit 1 is installed in the first power supply circuit to control the on and off of the first power supply circuit.
  • the power supply output end of the indoor unit 2 and the outdoor unit 110 form a second power supply circuit
  • the power supply control switch unit 2 is installed in the second power supply circuit to control the on and off of the second power supply circuit.
  • the alternating current output from the power supply output end of the indoor unit 1 and the indoor unit 2 is rectified by the power supply unit 20, and the power supply unit 20 inputs the rectified output direct current into the power supply end of the main control unit 30 for controlling the main control unit 30 to power on.
  • the power supply control switch unit 1 and the power supply control switch unit 2 are controlled to be closed or disconnected according to the operating status of the indoor unit 1 and the indoor unit 2.
  • the main control unit 30 controls the power supply control switch unit 1 to be turned off and the power supply control switch unit 2 to be turned off, the first power supply circuit The second power supply circuit is turned on, and the indoor unit 1 outputs AC power to power the outdoor unit 110.
  • the main control unit 30 controls the power supply control switch unit 2 to be turned off, and the power supply control switch unit 1 is turned off, the second power supply circuit is turned on, and the indoor unit 2 outputs AC power to power the outdoor unit 110.
  • the power supply control device is connected to the power supply 200 through the indoor unit 120, which is convenient to install, and provides AC power through the indoor unit 120 to ensure the power-on operation of the main control unit 30 and the power-on operation of the outdoor unit 110, thereby ensuring the normal operation of the air-conditioning system.
  • the main control unit 30 only closes one of the power supply control switch units 10, and the other power supply control switch units 10 remain in the open state, so that one of the multiple power supply circuits formed by the multiple indoor units 120 and the outdoor unit 110 is turned on, so as to ensure that only one indoor unit 120 supplies power to the outdoor unit 110 at any time.
  • the power supply unit includes: a plurality of rectifier circuits, each rectifier circuit being configured to rectify the alternating current provided by the corresponding indoor unit; and a switching power supply circuit being configured to convert the power output by each rectifier circuit into direct current.
  • the air conditioning system includes two indoor units, namely, indoor unit 1 and indoor unit 2, and the number of rectifier circuits corresponds to the number of indoor units, including rectifier circuit 1 and rectifier circuit 2.
  • Indoor unit 1 and indoor unit 2 are respectively connected to different single-phase power supply networks, that is, connected to different power supplies, and the L port of the power supply input end of indoor unit 1 and indoor unit 2 is connected to the live wire, that is, the L line, in the corresponding power supply, the N port is connected to the neutral wire, that is, the N line, in the power line, and the PE port is connected to the ground wire, that is, the PE line, in the power line.
  • the L port, N port and PE port of the power supply output end of indoor unit 1 and outdoor unit 2 are respectively connected to the L port, N port and PE port of the power supply input end to output an AC signal corresponding to the power supply.
  • the input end of the rectifier circuit 1 is connected to the L port and N port of the power supply output end of the indoor unit 1, thereby connected to the L line and N line of the power supply, and the rectifier circuit 1 converts the AC output of the indoor unit 1 into DC, and inputs the converted DC into the switching power supply circuit.
  • the input end of the rectifier circuit 2 is connected to the L port and the N port of the power supply output end of the indoor unit 2, and thus connected to the L line and the N line of the power supply.
  • the rectifier circuit 2 converts the AC power output by the indoor unit 2 into DC power, and inputs the converted DC power into the switching power supply circuit.
  • the switching power supply circuit is mainly composed of a driver chip and a switching transformer, and can couple the high-voltage DC power output by the rectifier circuit 1 and the rectifier circuit 2 into low-voltage DC power through a high-frequency switch of the switching transformer, and then output it to the low-voltage load and the main control unit, thereby powering the main control unit.
  • the indoor unit 1 and the indoor unit 2 are respectively connected to different single-phase power supply networks, and the power supply output terminals of the indoor unit 1 and the indoor unit 2 are both connected to the input terminal of the rectifier circuit.
  • the power supply connected to the two indoor units 1 and 2 is not from the same phase power supply or the L or N of one of the indoor units is connected incorrectly or reversely, when the power is collected to the rectifier circuit, a short circuit will occur.
  • the power supply unit is respectively provided with a plurality of rectifier circuits corresponding to the number of indoor units, and the polarity of the AC power input to the front end of the rectifier circuit does not affect the rectification work, that is, the reverse connection of the L line and the N line does not affect the DC polarity after rectification.
  • the power supply control device sets a multi-channel rectifier circuit through the power supply unit, which solves the short circuit problem caused by wrong connection or different power phases when multiple indoor units are powered.
  • a power-on control switch is further provided between each rectifier circuit and the corresponding indoor unit, and the power-on control switch is closed when the corresponding indoor unit is turned on, so that the turned-on indoor unit provides AC power to the corresponding rectifier circuit.
  • the power-on control switch between indoor unit 1 and rectifier circuit 1 is closed, and indoor unit 1 provides AC power to rectifier circuit 1.
  • the power-on control switch between indoor unit 2 and rectifier circuit 2 is closed, and indoor unit 2 provides AC power to rectifier circuit 2.
  • the above embodiment takes the air-conditioning system including two indoor units as an example to illustrate the power supply unit.
  • the number of indoor units can be three, four, etc., and the number of rectifier circuits in the power supply is also increased or decreased accordingly.
  • the power supply unit is also provided with N rectifier circuits corresponding to the indoor units, namely, rectifier circuit 1, rectifier circuit 2, rectifier circuit 3, ..., rectifier circuit N.
  • the input ends of rectifier circuit 1, rectifier circuit 2, rectifier circuit 3, ..., rectifier circuit N are respectively connected to the N indoor units, and the output ends are connected to the switching power supply circuit.
  • the power output of the multiple rectifier circuits is converted into direct current through the switching power supply circuit, thereby supplying power to the main control unit, and the main control unit controls the corresponding modules in the power supply control device.
  • the power supply control device of the air-conditioning system also includes an outdoor unit communication unit and multiple indoor unit communication units, wherein the main control unit is also configured to communicate with the corresponding indoor unit through each indoor unit communication unit, and communicate with the outdoor unit through the outdoor unit communication unit.
  • the indoor unit communication unit is consistent with the number of indoor units in the air conditioning system.
  • the main control unit communicates with indoor unit 1 through indoor unit 1 communication unit, communicates with indoor unit 2 through indoor unit 2 communication unit, and communicates with outdoor unit through outdoor unit communication unit.
  • the number of indoor unit communication units is N, as shown in FIG5, the main control unit communicates with N indoor units through indoor unit 1 communication unit, indoor unit 2 communication unit, indoor unit 3 communication unit, ..., indoor unit N communication unit.
  • the power supply control device realizes one-to-one communication on the loop through the communication mode of the current loop.
  • the current loop communication is a single-line strong current communication mode, which mainly utilizes the isolation characteristics of the optocoupler to convert the strong current communication signal into strong and weak current signals through the diode and transistor in the optocoupler.
  • the indoor unit sends the corresponding outdoor unit
  • the outdoor unit sends the corresponding indoor unit, and the two are connected to form a ring communication circuit.
  • the power supply control device of the air conditioner controls only one indoor unit to supply power to the outdoor unit at any time.
  • the main control unit controls all the power supply control switch units to be disconnected to avoid the convergence of power supplies of the two indoor units.
  • the main control unit is further configured to power on only one indoor unit among the multiple indoor units.
  • the indoor unit communication unit corresponding to the powered-on indoor unit communicates with the powered-on indoor unit, and controls the power supply control switch unit between the powered-on indoor unit and the outdoor unit to close according to the power-on command, and communicates with the outdoor unit through the outdoor unit communication unit.
  • the air conditioning system includes an indoor unit 1 and an indoor unit 2, wherein the power supply circuits of the indoor unit 1 and the outdoor unit are provided with relays RY1 and RY2 as power supply switch units, and the power supply circuits of the indoor unit 2 and the outdoor unit are provided with relays RY3 and RY4 as power supply control switch units.
  • the main control unit controls the relays RY1, RY2, RY3 and RY4 to not be attracted through the relay drive circuit, and when the air conditioning system is turned on, the main control unit controls the corresponding relays to be attracted through the relay drive circuit according to the received indoor unit communication signal.
  • the main control unit establishes two-way communication with indoor unit 1 through the current loop through the indoor unit 1 communication unit, and the main control unit controls the two relays RY1 and RY2 on the power lines L and N of indoor unit 1 to the L and N lines of the outdoor unit to be attracted, and keeps relays RY3 and RY4 disconnected, and the first power supply circuit between indoor unit 1 and outdoor unit is turned on, and the indoor unit 1 supplies power to the outdoor unit.
  • the indoor unit 1 is turned on, the outdoor unit is turned on, and the one-to-one air-conditioning system works normally.
  • the main control unit communicates with the outdoor unit in two directions based on the current loop through the outdoor unit communication unit, thereby controlling the operating parameters of the outdoor unit, such as the compressor, fan, temperature control, etc.
  • the pipe valve opening between the outdoor unit and the indoor unit 1 is controlled through the pipe valve drive circuit 1.
  • the main control unit is also configured to communicate with the outdoor unit through the outdoor unit communication unit to notify the outdoor unit to shut down when the turned-on indoor unit is turned off, and to control the power supply control switch unit between the turned-on indoor unit and the outdoor unit to be disconnected after the outdoor unit is turned off.
  • indoor unit 1 if indoor unit 1 receives a shutdown control command and controls indoor unit 1 to shut down, the main control unit receives the shutdown signal of indoor unit 1 through the indoor unit 1 communication unit, and sends the shutdown signal of indoor unit 1 to the outdoor unit through the outdoor unit communication unit to control the outdoor unit to shut down.
  • the main control unit determines that the outdoor unit is shut down, the main control unit controls relays RY1 and RY2 to disconnect through relay drive circuit 1. At this time, the power supply circuit between indoor unit 1 and outdoor unit is in a disconnected state, and indoor unit 1 no longer supplies power to the outdoor unit to reduce energy consumption.
  • the main control unit is also configured to notify the shut down indoor unit to disconnect the power-on control switch between the shut down indoor unit and the corresponding rectifier circuit after the power supply control switch unit between the shut down indoor unit and the outdoor unit is disconnected.
  • the main control unit sends a power-on control switch disconnection signal to the indoor unit 1 through the indoor unit 1 communication unit.
  • the indoor unit 1 controls the power-on control switch between the indoor unit 1 and the rectifier circuit 1 to be disconnected according to the signal, and no longer outputs AC power to the rectifier circuit, and the main control unit is powered off. Therefore, after the indoor unit 1 in the air-conditioning system is turned off, the main control unit first notifies the outdoor unit to enter the shutdown procedure, and the outdoor unit is turned off. Then, the main control unit disconnects the relays RY1 and RY2 that the indoor unit 1 uses to supply power to the outdoor unit, maintaining low power consumption. Standby, and further control the indoor unit 1 to cut off the power supply to the rectifier circuit 1. At this time, the main control unit has no power input, and the outdoor unit and the main control unit are both in a power-off state.
  • the above embodiment illustrates the power supply control method of the main control unit 30 when an indoor unit in the air-conditioning system is turned on.
  • Figure 3 the power supply control method of the main control unit when at least two of the multiple indoor units in the air-conditioning system are turned on is described in detail.
  • the rectifier circuits corresponding to the indoor units that need to be powered on operate simultaneously.
  • indoor unit 1 and indoor unit 2 when indoor unit 1 and indoor unit 2 receive a power-on command, indoor unit 1 outputs AC power to rectifier circuit 1, rectifier circuit 1 converts the AC power received from indoor unit 1 into DC power and sends it to the switch power circuit, indoor unit 2 outputs AC power to rectifier circuit 2, rectifier circuit 2 converts the AC power received from indoor unit 2 into DC power and sends it to the switch power circuit, the switch power circuit converts the DC power output by rectifier circuit 1 and rectifier circuit 2 into low-voltage DC power, thereby supplying power to the main control unit.
  • the main control unit supplies power through all indoor units in operation.
  • the main control unit is further configured to communicate with the indoor unit that is powered on first through the indoor unit communication unit corresponding to the indoor unit that is powered on first to obtain a power-on instruction, and control the power supply control switch unit between the indoor unit that is powered on first and the outdoor unit to close according to the power-on instruction, so as to supply power to the outdoor unit through the indoor unit that is powered on first, and when the indoor unit that is powered on later is powered on, communicate with the outdoor unit through the outdoor unit communication unit to adjust the operating parameters of the outdoor unit.
  • indoor unit 1 For example, assume that indoor unit 1 is turned on first. When indoor unit 1 receives the power-on command, indoor unit 1 starts running and controls the power-on control switch between indoor unit 1 and rectifier circuit 1 to close. Indoor unit 1 provides AC power to rectifier circuit 1 and supplies power to the main control unit through the switch power supply circuit.
  • the main control unit is powered on and initialized, that is, relays RY1 and RY2 are controlled to open through relay drive circuit 1, and relays RY3 and RY4 are controlled to open through relay drive circuit 2.
  • the main control unit establishes a current loop bidirectional communication with indoor unit 1 through indoor unit 1 communication unit, controls relays RY1 and RY2 to close through relay drive circuit 1, and controls indoor unit 1 to supply power to the outdoor unit.
  • the main control unit establishes a current loop bidirectional communication with the outdoor unit through the outdoor unit communication unit, adjusts the operating parameters of the outdoor unit according to the control command of indoor unit 1, and controls the opening of the pipe valve between the outdoor unit and indoor unit 1 through the pipe valve drive circuit 1.
  • the control indoor unit 2 When the control indoor unit 2 is turned on, the power-on control switch between the rectifier circuit 2 is closed, and the indoor unit 2 provides AC power to the rectifier circuit 2.
  • the DC power output by the rectifier circuit 2 is input into the switching power supply circuit.
  • the switching power supply circuit converts the DC power input by the rectifier circuit 1 and the rectifier circuit 2 into low-voltage DC power for powering the main control unit.
  • the main control unit is powered by both the indoor unit 1 and the indoor unit 2.
  • the main control unit establishes current loop communication with the indoor unit 2 through the indoor unit 2 communication unit to maintain two-way communication. At this time, the main control unit sends the power-on signal of the indoor unit 2 to the outdoor unit through the outdoor unit communication unit.
  • the outdoor unit recognizes the newly added indoor unit 2 and adjusts the operating parameters of the outdoor unit according to the capacity requirements of the newly added indoor unit 2.
  • the main control unit controls the pipe valve opening between the indoor unit 2 and the outdoor unit through the pipe valve drive circuit 1, thereby ensuring the normal operation of the indoor unit 2 that is turned on later.
  • the power supply control device controls the indoor unit 1 that is turned on first to supply power to the outdoor unit, while the relays RY3 and RY4 between the indoor unit 2 that is turned on later and the outdoor unit remain in an open state, and no power is supplied to the outdoor unit.
  • the main control unit is further configured to: When working simultaneously, if the indoor unit that was turned on first is turned off, the indoor unit communication unit corresponding to the indoor unit that was turned on first communicates with the indoor unit that was turned on first to obtain the shutdown command, and adjusts the operating parameters of the outdoor unit according to the shutdown command, and keeps the power supply control switch unit between the indoor unit that was turned on first and the outdoor unit in a closed state.
  • indoor unit 1 and indoor unit 2 are working normally, if indoor unit 1, which is turned on first, receives a shutdown command, indoor unit 1 shuts down, and sends the shutdown command to the main control unit through the indoor unit 1 communication module based on the current loop.
  • the main control unit sends the shutdown command of indoor unit 1 to the outdoor unit through the outdoor unit communication unit.
  • the outdoor unit adjusts the outdoor unit operating parameters (i.e., compressor, fan, pipe valve opening, temperature control and other operating parameters) according to the current matching capacity requirements.
  • indoor unit 1 is the indoor unit that supplies power to the outdoor unit, and there are other indoor units, i.e., indoor unit 2, working at present, after controlling indoor unit 1 to enter the preset shutdown procedure and shutting down indoor unit 1, the main control unit controls relays RY1 and RY2 to remain in a closed state through relay drive circuit 1, and controls indoor unit 1 to continue to supply power to the outdoor unit to avoid the outdoor unit from shutting down. That is to say, after the indoor unit that supplies power to the outdoor unit shuts down, if there are other indoor units that continue to work, the indoor unit keeps supplying power to the outdoor unit to ensure the normal operation of the outdoor unit and the normal operation of the indoor units in other working states.
  • the main control unit is further configured to, when there are at least two indoor units working simultaneously among multiple indoor units, if the indoor unit that is turned on later is turned off, communicate with the indoor unit that is turned on later through the indoor unit communication unit corresponding to the indoor unit that is turned on later to obtain a shutdown instruction, adjust the operating parameters of the outdoor unit according to the shutdown instruction, and notify the indoor unit that is turned on later to disconnect the power-on control switch between the indoor unit that is turned on later and the corresponding rectifier circuit.
  • indoor unit 1 and indoor unit 2 are working normally, if indoor unit 2, which is turned on later, is turned off first, then when indoor unit 2 is turned off, indoor unit 2 sends the shutdown command to the main control unit through the indoor unit 2 communication unit, and the main control unit sends it to the outdoor unit through the outdoor unit communication unit. After receiving it, the outdoor unit adjusts the outdoor unit operating parameters according to the current matching capacity requirements. Since indoor unit 2 is not the power supply indoor unit of the outdoor unit, indoor unit 2 is controlled to enter the shutdown procedure, indoor unit 2 is turned off, the power-on control switch between indoor unit 2 control and rectifier circuit 2 is disconnected, rectifier circuit 2 stops working, and only rectifier circuit 1 works. At this time, indoor unit 1 supplies power to the main control unit.
  • the main control unit is also configured to, when communicating with at least two of the multiple indoor units at the same time, determine the accumulated working time of the indoor units participating in the communication, and determine the indoor unit to be powered based on the accumulated working time.
  • the main control unit will sort the indoor units according to their cumulative working time in the previous period.
  • the indoor units with longer cumulative working time will be arranged to power the outdoor units first, thereby avoiding the impact of power failures to the indoor units too many times and the need to switch power supplies when multiple indoor units are in use.
  • the main control unit is further configured to, when there are at least two indoor units among a plurality of indoor units working simultaneously, if the indoor unit providing power loses power, determine the cumulative working time of the indoor units participating in the communication, and determine the indoor unit for power switching based on the cumulative working time, and after the power supply control switch unit between the indoor unit controlling the power failure and the outdoor unit is disconnected, the power supply control switch unit between the indoor unit controlling the power switching and the outdoor unit is closed.
  • the power supplied to the indoor unit suddenly loses power, and the outdoor unit suddenly loses power and stops working. Since the other indoor units in the working state are connected to the corresponding power supply, they can remain intact and continue to be powered to the main control unit. Since there is at least one rectifier circuit working in the power supply unit, the main control unit can work normally. At the same time, the main control unit maintains communication with other indoor units in the powered-on working state through the corresponding indoor unit communication units. The main control unit can determine that the powered indoor unit has lost power by the loss of communication signal between the powered indoor unit and the outdoor unit, and start the power supply switching procedure.
  • the main control unit will select the indoor unit with the longest cumulative usage time within the previous preset period from the indoor units that maintain communication to power the outdoor unit, that is, the main control unit controls the power supply control switch unit of the power supply circuit of the indoor unit that has lost power to the outdoor unit to disconnect, and controls the power supply control switch unit between the indoor unit that is about to power the outdoor unit and the outdoor unit to close, thereby completing the power supply switching, and the outdoor unit restarts and adjusts the outdoor unit operating parameters according to the current matching capacity requirements, so that the indoor unit in the working state resumes normal operation.
  • the above preset time can be set according to actual conditions and is not limited here.
  • the air-conditioning system includes an outdoor unit and multiple indoor units, each indoor unit is suitable for being connected to a power supply source respectively, and the power supply control device includes: multiple power supply control switch units, each power supply control switch unit is respectively connected to the power supply circuit between the corresponding indoor unit and the outdoor unit, and the AC power provided by each indoor unit is converted into DC power through the power supply unit to power the main control unit, and the main control unit controls one of the multiple power supply control switch units to be closed so that the corresponding indoor unit supplies power to the outdoor unit.
  • the device converts the AC power provided by the indoor unit through the power supply source to power the main control unit, and the main control unit controls one of the power supply control switch units to be closed so that the corresponding indoor unit supplies power to the outdoor unit, thereby ensuring the normal operation of the air-conditioning system.
  • the present disclosure also proposes an air conditioning system.
  • the air conditioning system 100 includes the power supply control device 300 of the air conditioning system described above.
  • the AC power provided by the indoor unit is converted by the power supply to power the main control unit.
  • the main control unit controls one of the power supply control switch units to be closed, so that the corresponding indoor unit supplies power to the outdoor unit, thereby ensuring the normal operation of the air-conditioning system.
  • the present disclosure also proposes a power supply control method for an air conditioning system.
  • the air-conditioning system 100 includes an outdoor unit 110, multiple indoor units 120, and a centralized controller 130.
  • Each indoor unit 120 is suitable for being connected to a power supply 200 respectively.
  • a power supply control switch unit 140 is provided in the power supply circuit between each indoor unit 120 and the outdoor unit 110, and multiple indoor units 120 supply power to the centralized controller 130 at the same time.
  • the power supply control method of the air conditioning system may include:
  • the centralized controller controls one of the multiple power supply control switch units to be closed, so that the corresponding indoor unit supplies power to the outdoor unit.
  • the centralized controller includes a plurality of rectifier circuits and a switching power supply circuit, each rectifier circuit is configured to rectify the alternating current provided by the corresponding indoor unit, and the switching power supply circuit is configured to convert the power output by each rectifier circuit into direct current, wherein the closure of one of the plurality of power supply control switch units is controlled by the centralized controller, including: when only one indoor unit among the plurality of indoor units is turned on, communicating with the turned-on indoor unit through the indoor unit communication unit corresponding to the turned-on indoor unit to obtain a power-on instruction, and controlling the closure of the power supply control switch unit between the turned-on indoor unit and the outdoor unit according to the power-on instruction.
  • the power supply control method of the air-conditioning system when the turned-on indoor unit is turned off, also includes: communicating with the outdoor unit through the external unit communication unit to notify the outdoor unit to turn off the outdoor unit, and controlling the power supply control switch unit between the turned-on indoor unit and the outdoor unit to be disconnected after the outdoor unit is turned off.
  • the power supply control switch unit between the indoor unit and the outdoor unit is disconnected.
  • the power supply control method of the air-conditioning system further includes: notifying the shut-down indoor unit to disconnect the power-on control switch between the shut-down indoor unit and the corresponding rectifier circuit.
  • the rectifier circuits corresponding to the indoor units that need to be turned on work simultaneously, wherein one of the plurality of power supply control switch units is controlled to be closed by a centralized controller, including: communicating with the indoor unit that is turned on first through the indoor unit communication unit corresponding to the indoor unit that is turned on first to obtain a power-on instruction, and controlling the power supply control switch unit between the indoor unit that is turned on first and the outdoor unit to be closed according to the power-on instruction, so as to supply power to the outdoor unit through the indoor unit that is turned on first.
  • the power supply control method of the air-conditioning system when there are at least two indoor units among a plurality of indoor units working simultaneously, the power supply control method of the air-conditioning system also includes: if the indoor unit that is turned on first is turned off, communicating with the indoor unit that is turned on first through the indoor unit communication unit corresponding to the indoor unit that is turned on first to obtain a shutdown instruction, adjusting the operating parameters of the outdoor unit according to the shutdown instruction, and keeping the power supply control switch unit between the indoor unit that is turned on first and the outdoor unit in a closed state.
  • the power supply control method of the air-conditioning system when there are at least two indoor units among multiple indoor units working simultaneously, the power supply control method of the air-conditioning system also includes: if the indoor unit that is turned on later is turned off, communicating with the indoor unit that is turned on later through the indoor unit communication unit corresponding to the indoor unit that is turned on later to obtain a shutdown instruction, and adjusting the operating parameters of the outdoor unit according to the shutdown instruction, and notifying the indoor unit that is turned on later to disconnect the power-on control switch between the indoor unit that is turned on later and the corresponding rectifier circuit.
  • the power supply control method of the air-conditioning system when communicating with at least two indoor units among multiple indoor units at the same time, also includes: determining the cumulative working time of the indoor units participating in the communication, and determining the indoor unit to be powered based on the cumulative working time.
  • the power supply control method of the air-conditioning system when at least two indoor units among a plurality of indoor units are working simultaneously, the power supply control method of the air-conditioning system further includes: if the indoor unit providing power loses power, determining the cumulative working time of the indoor units participating in the communication, and determining the indoor unit for power switching based on the cumulative working time, and after the power supply control switch unit between the indoor unit controlling the power failure and the outdoor unit is disconnected, the power supply control switch unit between the indoor unit controlling the power switching and the outdoor unit is closed.
  • the air-conditioning system includes an outdoor unit, multiple indoor units, and a centralized controller.
  • Each indoor unit is suitable for being connected to a power supply respectively.
  • a power supply control switch unit is provided in the power supply circuit between each indoor unit and the outdoor unit. Multiple indoor units supply power to the centralized controller at the same time.
  • the power supply control method of the air-conditioning system responds to the power supply instruction by controlling one of the multiple power supply control switch units to be closed through the centralized controller so that the corresponding indoor unit supplies power to the outdoor unit. Therefore, the method supplies power to the centralized controller through the indoor unit, and the centralized controller controls one of the power supply control switch units to be closed so that the corresponding indoor unit supplies power to the outdoor unit, thereby ensuring the normal operation of the air-conditioning system.
  • a "computer-readable medium” may be any device that can contain, store, communicate, propagate or transmit a program for use with or in conjunction with an instruction execution system, device or device.
  • exemplary examples of computer-readable media include the following: an electrical connection with one or more wirings (electronic device), a portable computer disk case (magnetic device), a random access memory (RAM), a read-only memory (ROM), an erasable and editable read-only memory (EPROM or flash memory), a fiber optic device, and a portable compact disk read-only memory (CDROM).
  • a computer-readable medium may even be paper or other suitable medium on which the program may be printed, since the program may be obtained electronically, for example, by optically scanning the paper or other medium, followed by editing, interpreting or, if necessary, processing in another suitable manner, and then stored in a computer memory.
  • the terms “first”, “second”, etc. used in the embodiments of the present disclosure are only used for descriptive purposes and should not be understood as indicating or implying relative importance, or implicitly indicating the number of technical features indicated in the present embodiment. Therefore, the features defined by the terms “first”, “second”, etc. in the embodiments of the present disclosure may explicitly or implicitly indicate that at least one of the features is included in the embodiment.
  • the word “plurality” means at least two or two or more, such as two, three, four, etc., unless otherwise explicitly limited by example in the embodiments.
  • connection can be a fixed connection, a detachable connection, or an integrated connection. It can be understood that it can also be a mechanical connection, an electrical connection, etc.; of course, it can also be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal connection of two elements, or the interaction relationship between two elements.
  • connection can be a fixed connection, a detachable connection, or an integrated connection. It can be understood that it can also be a mechanical connection, an electrical connection, etc.; of course, it can also be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal connection of two elements, or the interaction relationship between two elements.

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Abstract

一种空调系统及其供电控制装置和供电控制方法,空调系统包括室外机(110)和多个室内机(120),每个室内机(120)适于分别连接到供电电源,供电控制装置包括:多个供电控制开关单元(10),每个供电控制开关单元(10)分别连接在对应室内机(120)与室外机(110)之间的供电回路中;供电单元(20)和主控单元(30),供电单元(20)被配置为将每个室内机(120)提供的交流电转换为直流电以给主控单元(30)供电,主控单元(30)被配置为控制多个供电控制开关单元(10)中的一个闭合,以使相应室内机(120)给室外机(110)供电。

Description

空调系统及其供电控制装置和供电控制方法
相关申请的交叉引用
本公开要求于2022年11月28日提交的申请号为202211501101.8,名称为“空调系统及其供电控制装置和供电控制方法”的中国专利申请的优先权,其全部内容通过引用结合在本公开中。
技术领域
本公开涉及空调系统技术领域,尤其涉及一种空调系统的供电控制装置、一种空调系统和一种空调系统的供电控制方法。
背景技术
空调系统一般统称为由室外机、室内机和终端设备组成的制冷或制热系统。其中,一拖多空调系统一般指一台室外机搭配两台以上室内机。相关技术中,一拖多空调系统的供电方案包括:1)室内机和室外机分开供电;2)室外机给室内机供电。但是,在室内机和室外机分开供电的技术方案中,需要两路以上电源接口及控制开关,导致空调系统安装复杂。在室外机给室内机供电的技术方案中,室外机电控设计需要预留两路以上室内机供电接口及控制继电器,会导致室外机接线复杂。
公开内容
本公开旨在至少在一定程度上解决相关技术中的技术问题之一。为此,本公开的第一个目的在于提出一种空调系统的供电控制装置,通过供电电源对室内机提供的交流电进行转换,以给主控单元供电,主控单元通过控制供电控制开关单元中的一个闭合,使相应室内机给室外机供电,保证了空调系统的正常运行。
本公开的第二个目的在于提出一种空调系统。
本公开的第三个目的在于提出一种空调系统的供电控制方法。
为达到上述目的,本公开第一方面实施例提出了一种空调系统的供电控制装置,空调系统包括室外机和多个室内机,每个室内机适于分别连接到供电电源,供电控制装置包括:多个供电控制开关单元,每个供电控制开关单元分别连接在对应室内机与室外机之间的供电回路中;供电单元和主控单元,供电单元被配置为将每个室内机提供的交流电转换为直流电以给主控单元供电,主控单元被配置为控制多个供电控制开关单元中的一个闭合,以使相应室内机给室外机供电。
根据本公开实施例的空调系统的供电控制装置,空调系统包括室外机和多个室内机,每个室内机适于分别连接到供电电源,供电控制装置包括:多个供电控制开关单元,每个供电控制开关单元分别连接在对应室内机与室外机之间的供电回路中,并通过供电单元将每个室内机提供的交流电转换为直流电以给主控单元供电,主控单元控制多个供电控制开关 单元中的一个闭合,以使相应室内机给室外机供电。由此,该装置通过供电电源对室内机提供的交流电进行转换,以给主控单元供电,主控单元通过控制供电控制开关单元中的一个闭合,使相应室内机给室外机供电,保证了空调系统的正常运行。
另外,根据本公开上述实施例的空调系统的供电控制装置,还可以具有如下的附加技术特征:
根据本公开的一个实施例,供电单元包括:多个整流电路,每个整流电路被配置为对相应室内机提供的交流电进行整流;开关电源电路,被配置为将每个整流电路输出的电源转换为直流电。
根据本公开的一个实施例,在每个整流电路与相应室内机之间还设置有上电控制开关,上电控制开关在相应室内机开机时闭合,以便开机的室内机给对应的整流电路提供交流电。
根据本公开的一个实施例,该空调系统的供电控制装置还包括外机通讯单元和多个内机通讯单元,其中,主控单元还被配置为通过每个内机通讯单元与相应室内机进行通讯,并通过外机通讯单元与室外机进行通讯。
根据本公开的一个实施例,主控单元还被配置为,在多个室内机中仅有一个室内机开机时,通过该开机的室内机所对应的内机通讯单元与该开机的室内机进行通讯,以获取开机指令,并根据开机指令控制该开机的室内机与室外机之间的供电控制开关单元闭合,以及通过外机通讯单元与室外机进行通讯。
根据本公开的一个实施例,主控单元还被配置为,在该开机的室内机关机时,通过外机通讯单元与室外机进行通讯以通知室外机关机,并在室外机关机后控制该开机的室内机与室外机之间的供电控制开关单元断开。
根据本公开的一个实施例,主控单元还被配置为,在该开机的室内机与室外机之间的供电控制开关单元断开后,通知该关机的室内机断开该关机的室内机与相应整流电路之间的上电控制开关。
根据本公开的一个实施例,在多个室内机中存在至少两个室内机需要开机时,需要开机的室内机对应的整流电路同时工作。
根据本公开的一个实施例,主控单元还被配置为,通过先开机的室内机所对应的内机通讯单元与该先开机的室内机进行通讯,以获取开机指令,并根据开机指令控制该先开机的室内机与室外机之间的供电控制开关单元闭合,以通过该先开机的室内机给室外机供电,以及在后开机的室内机开机时,通过外机通讯单元与室外机进行通讯,以调节室外机的运行参数。
根据本公开的一个实施例,主控单元还被配置为,在多个室内机中存在至少两个室内机同时工作时,如果先开机的室内机关机,则通过先开机的室内机所对应的内机通讯单元与该先开机的室内机进行通讯,以获取关机指令,并根据关机指令调节室外机的运行参数,以及保持该先开机的室内机与室外机之间的供电控制开关单元处于闭合状态。
根据本公开的一个实施例,主控单元还被配置为,在多个室内机中存在至少两个室内机同时工作时,如果后开机的室内机关机,则通过后开机的室内机所对应的内机通讯单元与 该后开机的室内机进行通讯,以获取关机指令,并根据关机指令调节室外机的运行参数,以及通知该后开机的室内机断开该后开机的室内机与相应整流电路之间的上电控制开关。
根据本公开的一个实施例,主控单元还被配置为,在与多个室内机中至少两个室内机同时进行通讯时,确定参与通讯的室内机的累计工作时间,并根据累计工作时间确定进行供电的室内机。
根据本公开的一个实施例,主控单元还被配置为,在多个室内机中存在至少两个室内机同时工作时,如果进行供电的室内机掉电,则确定参与通讯的室内机的累计工作时间,并根据累计工作时间确定进行供电切换的室内机,以及在控制掉电的室内机与室外机之间的供电控制开关单元断开后,控制供电切换的室内机与室外机之间的供电控制开关单元闭合。
为达到上述目的,本公开第二方面实施例提出了一种空调系统,包括上述的空调系统的供电控制装置。
根据本公开实施例的空调系统,基于上述的空调系统的供电控制装置,通过供电电源对室内机提供的交流电进行转换,以给主控单元供电,主控单元通过控制供电控制开关单元中的一个闭合,使相应室内机给室外机供电,保证了空调系统的正常运行。
为达到上述目的,本公开第三方面实施例提出了一种空调系统的供电控制方法,空调系统包括室外机、多个室内机、集控器,每个室内机适于分别连接到供电电源,每个室内机与室外机之间的供电回路中设有供电控制开关单元,多个室内机同时给集控器供电,该空调系统的供电控制方法包括:响应于供电指令,通过集控器控制多个供电控制开关单元中的一个闭合,以使相应室内机给室外机供电。
根据本公开实施例的空调系统的供电控制方法,空调系统包括室外机、多个室内机、集控器,每个室内机适于分别连接到供电电源,每个室内机与室外机之间的供电回路中设有供电控制开关单元,多个室内机同时给集控器供电,空调系统的供电控制方法,响应于供电指令,通过集控器控制多个供电控制开关单元中的一个闭合,以使相应室内机给室外机供电。由此,该方法通过室内机给集控器供电,集控器通过控制供电控制开关单元中的一个闭合,使相应室内机给室外机供电,保证了空调系统的正常运行。
另外,根据本公开上述实施例的空调系统的供电控制方法,还可以具有如下的附加技术特征:
根据本公开的一个实施例,集控器包括多个整流电路和开关电源电路,每个整流电路被配置为对相应室内机提供的交流电进行整流,开关电源电路被配置为将每个整流电路输出的电源转换为直流电,其中,通过集控器控制多个供电控制开关单元中的一个闭合,包括:在多个室内机中仅有一个室内机开机时,通过该开机的室内机所对应的内机通讯单元与该开机的室内机进行通讯,以获取开机指令,并根据开机指令控制该开机的室内机与室外机之间的供电控制开关单元闭合。
根据本公开的一个实施例,在该开机的室内机关机时,该空调系统的供电控制方法还包括:通过外机通讯单元与室外机进行通讯以通知室外机关机,并在室外机关机后控制该开机的室内机与室外机之间的供电控制开关单元断开。
根据本公开的一个实施例,在该开机的室内机与室外机之间的供电控制开关单元断开后,该空调系统的供电控制方法还包括:通知该关机的室内机断开该关机的室内机与相应整流电路之间的上电控制开关。
根据本公开的一个实施例,在多个室内机中存在至少两个室内机需要开机时,需要开机的室内机对应的整流电路同时工作,其中,通过集控器控制多个供电控制开关单元中的一个闭合,包括:通过先开机的室内机所对应的内机通讯单元与该先开机的室内机进行通讯,以获取开机指令,并根据开机指令控制该先开机的室内机与室外机之间的供电控制开关单元闭合,以通过该先开机的室内机给室外机供电。
根据本公开的一个实施例,在多个室内机中存在至少两个室内机同时工作时,该空调系统的供电控制方法还包括:如果先开机的室内机关机,则通过先开机的室内机所对应的内机通讯单元与该先开机的室内机进行通讯,以获取关机指令,并根据关机指令调节室外机的运行参数,以及保持该先开机的室内机与室外机之间的供电控制开关单元处于闭合状态。
根据本公开的一个实施例,在多个室内机中存在至少两个室内机同时工作时,该空调系统的供电控制方法还包括:如果后开机的室内机关机,则通过后开机的室内机所对应的内机通讯单元与该后开机的室内机进行通讯,以获取关机指令,并根据关机指令调节室外机的运行参数,以及通知该后开机的室内机断开该后开机的室内机与相应整流电路之间的上电控制开关。
根据本公开的一个实施例,在与多个室内机中至少两个室内机同时进行通讯时,该空调系统的供电控制方法还包括:确定参与通讯的室内机的累计工作时间,并根据累计工作时间确定进行供电的室内机。
根据本公开的一个实施例,在多个室内机中存在至少两个室内机同时工作时,该空调系统的供电控制方法还包括:如果进行供电的室内机掉电,则确定参与通讯的室内机的累计工作时间,并根据累计工作时间确定进行供电切换的室内机,以及在控制掉电的室内机与室外机之间的供电控制开关单元断开后,控制供电切换的室内机与室外机之间的供电控制开关单元闭合。
本公开附加的方面和优点将在下面的描述中部分给出,部分将从下面的描述中变得明显,或通过本公开的实践了解到。
附图说明
图1是本公开实施例的空调系统的供电控制装置的方框图;
图2是本公开一个具体实施例的空调系统的方框图;
图3是本公开一个实施例的空调系统的供电控制装置的电路拓扑图;
图4是本公开另一个实施例的空调系统的供电控制装置的电路拓扑图;
图5是本公开一个实施例的空调系统的供电控制装置的方框图;
图6是本公开一个实施例的电流环通讯示意图;
图7是本公开实施例的空调系统的方框图;
图8是本公开一个实施例的空调系统的方框图;
图9是本公开实施例的空调系统的供电控制方法的流程图。
具体实施方式
下面详细描述本公开的实施例,所述实施例的示例在附图中示出,其中自始至终相同或类似的标号表示相同或类似的元件或具有相同或类似功能的元件。下面通过参考附图描述的实施例是示例性的,旨在用于解释本公开,而不能理解为对本公开的限制。
下面参考附图描述本公开实施例的空调系统的供电控制装置、空调系统和空调系统的供电控制方法。
图1是本公开实施例的空调系统的供电控制装置的方框图。
在本公开的一个实施例中,如图2所示,空调系统100包括室外机110和多个室内机120,每个室内机120适于分别连接到供电电源200。
也就是说,该空调系统100为一台室外机110搭多台室内机120的一拖多空调系统。假设该空调系统100中设置有两台室内机110即室内机1和室外机2,室内机1和室内机2通过电源插头与插座相连,室内机1连接供电电源1,由供电电源1对室内机1进行供电,室内机2连接供电电源2,由供电电源2对室内机2供电。室内机1和室外机2分别与室外机110相连,通过室内机1或室外机2对室外机110进行供电,相对于相关技术中的室内机和室外机分开供电方式和室外机给室内机供电方式,该方式安装便利。可以理解的是,上述供电电源200可以对应室内机120分别设置有多个供电电源,也可采用一个供电电源为多个室内机120进行供电,具体可根据实际情况进行设定。
参照图1所示,该空调系统的供电控制装置包括:多个供电控制开关单元10,供电单元20和主控单元30。
其中,每个供电控制开关单元10分别连接在对应室内机120与室外机110之间的供电回路中。供电单元20被配置为将每个室内机110提供的交流电转换为直流电以给主控单元30供电,主控单元30被配置为控制多个供电控制开关单元10中的一个闭合,以使相应室内机120给室外机110供电。
具体而言,参照图1和图2所示,继续的空调系统100包括两台室内机120为例,该空调系统的供电控制装置中的供电控制开关单元10的数量与室内机120的数量一致,包括供电控制开关单元1和供电控制开关单元2。举例来说,室内机1的供电输出端与室外机110构成第一供电回路,并在第一供电回路中安装供电控制开关单元1,以控制该第一供电回路的通断。室内机2的供电输出端与室外机110构成第二供电回路,并在第二供电回路中安装供电控制开关单元2,以控制第二供电回路的通断。同时,室内机1和室内机2的供电输出端输出的交流电通过供电单元20进行整流操作,供电单元20将整流输出的直流电输入主控单元30的供电端,用于控制主控单元30上电。主控单元30上电后,根据室内机1和室内机2的运行状态对供电控制开关单元1和供电控制开关单元2的闭合或断开进行控制。当主控单元30控制供电控制开关单元1关闭,且供电控制开关单元2断开时,第一供电回 路导通,室内机1输出交流电给室外机110供电。当主控单元30控制供电控制开关单元2关闭,且供电控制开关单元1断开时,第二供电回路导通,室内机2输出交流电给室外机110供电。由此,该供电控制装置通过室内机120连接供电电源200,安装便利,并通过室内机120提供交流电保证主控单元30的上电工作,以及室外机110的上电工作,保证了空调系统的正常运行。
需要说明的是,上述主控单元30对供电控制开关单元10的闭合控制过程中,主控单元30仅对其中一个供电控制开关单元10进行闭合,其他供电控制开关单元10保持断开状态,使多个室内机120与室外机110构成的多个供电回路中的一个导通,以保证在任何时候仅一个室内机120为室外机110供电。
根据本公开的一个实施例,供电单元包括:多个整流电路,每个整流电路被配置为对相应室内机提供的交流电进行整流;开关电源电路,被配置为将每个整流电路输出的电源转换为直流电。
举例来说,以图3为例,空调系统包括两个室内机,分别为室内机1和室内机2,整流电路的数量与室内机数量相对应,包括整流电路1和整流电路2。其中,室内机1和室内机2分别接入不同的单相电源网络即连接不同的供电电源,室内机1和室内机2的供电输入端的L端口与相应的供电电源中的火线即L线相连,N端口与电源线中的零线即N线相连,PE端口与电源线中的地线即PE线相连。室内机1和室外机2的供电输出端的L端口、N端口和PE端口分别与供电输入端的L端口、N端口和PE端口相连,以输出与供电电源相对应的交流电信号。整流电路1的输入端与室内机1的供电输出端的L端口和N端口相连,从而与供电电源的L线和N线相连,该整流电路1将室内机1输出的交流电转换为直流电,并将转换后的直流电输入开关电源电路。整流电路2的输入端与室内机2的供电输出端的L端口和N端口相连,从而与供电电源的L线和N线相连,整流电路2将室内机2输出的交流电转换为直流电,并将转换后的直流电输入开关电源电路。开关电源电路主要由驱动芯片和开关变压器组成,可将接收的整流电路1和整流电路2输出的高压直流电通过开关变压器高频开关耦合成低压直流电,从而输出至低压负载以及主控单元,从而为主控单元供电。
进一步地,当供电单元仅采用一个整流电路时,如图4所示,室内机1和室内机2分别接入不同的单相电源网络,室内机1和室内机2的供电输出端均连接至整流电路的输入端,当两路室内机1和室内机2连接的供电电源来自不是来自同一相电源或者其中1台室内机的L或N接错或者接反,当电源汇集到整流电路时,将会发生短路。反之,当室内机1和室内机2的两路供电电源来自同一相电源且室内机1和室内机2的L和N同时接线正确时,当电源汇集到供电控制装置时,该系统才可正常工作。为避免上述问题的发生,该实施例中,供电单元分别对应室内机的数量设置多个整流电路,整流电路前端输入交流电源的极性不影响整流工作,即L线和N线接反不影响整流后的直流电极性,因此,即使室内机的电源接反或者接错也不会直接导致短路。例如,整流电路前接入的是两根火线即L线,会导致整流后母线电压过高,此时,可以通过整流电路中的器件选型及保护值设置避免该问 题的发生。又如,当整流电路输入的L线和S线,或者N线和S线,由于压差小,整流后电压低,同时会导致通讯故障,但不会造成短路,其中,通讯异常可通过的故障代码进行显示提示,引导安装人员排除故障。由此,该供电控制装置通过供电单元设置多路整流电路,解决了多台室内机供电时容易存在的接错或电源不同相导致的短路问题。
根据本公开的一个实施例,在每个整流电路与相应室内机之间还设置有上电控制开关,上电控制开关在相应室内机开机时闭合,以便开机的室内机给对应的整流电路提供交流电。
举例来说,继续以图3为例,当用户控制室内机1开机时,室内机1和整流电路1之间的上电控制开关闭合,此时室内机1给整流电路1提供交流电。当用户控制室内机2开机时,室内机2和整流电路2之间的上电控制开关闭合,此时室内机2给整流电路2提供交流电。
需要说明的是,上述实施例以空调系统包括两个室内机为例对供电单元进行举例说明,在实际应用过程中,室内机的数量可以为三个、四个等,此时供电电源中整流电路的数量也进行相应的增多或减少。如图5所示,当空调系统中包括N个室内机时,供电单元也设置有N个整流电路与室内机相对应,分别为整流电路1、整流电路2、整流电路3、……、整流电路N。整流电路1、整流电路2、整流电路3、……、整流电路N的输入端分别与N个室内机对应相连,输出端连接开关电源电路,通过开关电源电路对多个整流电路输出的电源转换为直流电,从而给主控单元供电,主控单元对供电控制装置中的相应的模块进行控制。
根据本公开的一个实施例,该空调系统的供电控制装置还包括外机通讯单元和多个内机通讯单元,其中,主控单元还被配置为通过每个内机通讯单元与相应室内机进行通讯,并通过外机通讯单元与室外机进行通讯。
举例来说,内机通讯单元与空调系统中的内机数量相一致。举例来说,假设空调系统包括两个室内机,参照图3所示,主控单元通过内机1通讯单元与室内机1通讯,通过内机2通讯单元与室内机2通讯,通过外机通讯单元与室外机通讯。假设空调系统包括N个室内机,则内机通讯单元的数量为N个,如图5所示,主控单元分别通过内机1通讯单元、内机2通讯单元、内机3通讯单元、……、内机N通讯单元与N个室内机进行通讯。
需要说明的是,该供电控制装置通过电流环的通讯方式实现环路上一对一通讯。电流环通讯是一种单线强电通讯方式,主要是利用光耦的隔离特性,将强电通讯信号通过光耦中的二极管和三极管进行强弱电信号转换,以图6为例,室内机发送对应室外机接收,室外机发送对应室内机接收,两两相连构成环形通讯电路。
该空调器的供电控制装置在任何时候控制只有一台室内机能给室外机供电,每台室内机的电源线L和N到室外机的L和N线路上各有一个供电控制开关单元,主控单元在上电初始化时,主控单元控制供电控制开关单元全部为断开,以避免了两台室内机电源的汇集。下面以图3为例,对主控单元控制多个供电控制开关单元中的一个闭合,以使相应室内机给室外机供电的方法进行详细说明。
根据本公开的一个实施例,主控单元还被配置为,在多个室内机中仅有一个室内机开机 时,通过该开机的室内机所对应的内机通讯单元与该开机的室内机进行通讯,以获取开机指令,并根据开机指令控制该开机的室内机与室外机之间的供电控制开关单元闭合,以及通过外机通讯单元与室外机进行通讯。
举例来说,参照图3所示,空调系统包括室内机1和室内机2,其中室内机1和室外机的供电回路上设置有继电器RY1和继电器RY2作为供电开关单元,室内机2和室外机的供电回路上设置有继电器RY3和继电器RY4作为供电控制开关单元。为了降低空调系统的待机功耗,在空调系统待机时,主控单元通过继电器驱动电路控制上述继电器RY1、RY2、RY3和RY4不吸合,当空调系统开机时,主控单元根据接收到的内机通讯信号通过继电器驱动电路控制相应的继电器吸合。
假设图3中仅室内机1开机,当室内机1接收用户的开机指令开机后,室内机1控制与整流电路1之间的上电控制开关闭合,室内机1提供的交流电通过整流电路1输出直流电,并进一步通过开关电源电路输出低压直流电给主控单元上电,主控单元上电启动,并进行上电初始化,即通过继电器驱动电路1控制继电器RY1和RY2断开,通过继电器驱动电路2控制继电器RY3和RY4断开。然后,主控单元通过内机1通讯单元与室内机1通过电流环建立双向通讯,主控单元控制室内机1的电源线L和N到室外机的L和N线路上的两个继电器RY1和RY2吸合,保持继电器RY3和RY4断开,室内机1和室外机之间的第一供电回路导通,由室内机1为室外机供电。此时,室内机1开机、室外机开机,一拖一空调系统正常工作,主控单元通过外机通讯单元与室外机基于电流环进行双向通讯,从而对室外机的运行参数进行控制,例如压缩机、风机、温度控制等,同时通过管阀驱动电路1控制室外机和室内机1之间的管阀开度。
根据本公开的一个实施例,主控单元还被配置为,在该开机的室内机关机时,通过外机通讯单元与室外机进行通讯以通知室外机关机,并在室外机关机后控制该开机的室内机与室外机之间的供电控制开关单元断开。
举例来说,在室内机1开机运行过程中,如果室内机1接收到关机控制指令,控制室内机1关机时,主控单元通过内机1通讯单元接收到室内机1的关机信号,通过外机通讯单元向室外机发送室内机1的关机信号,以控制室外机关机。当主控单元确定室外机关机后,主控单元通过继电器驱动电路1控制继电器RY1和RY2断开,此时,室内机1和室外机之间的供电回路处于断开状态,室内机1不再给室外机供电,以降低能耗。
根据本公开的一个实施例,主控单元还被配置为,在该开机的室内机与室外机之间的供电控制开关单元断开后,通知该关机的室内机断开该关机的室内机与相应整流电路之间的上电控制开关。
也就是说,在主控单元控制上述继电器RY1和RY2断开后,主控单元通过内机1通讯单元向室内机1发送上电控制开关断开信号,室内机1根据该信号控制与整流电路1之间的上电控制开关断开,至此不再输出交流电至整流电路,主控单元断电。由此,该供电控制装置在空调系统中的室内机1关机后,主控单元首先通知室外机,使室外机进入关机程序,室外机关机,然后,主控单元断开室内机1给室外机供电的继电器RY1和RY2,保持低功耗 待机,并进一步控制室内机1断开对整流电路1的供电,此时主控单元无供电输入,室外机、主控单元均处于无电状态。
上述实施例对空调系统中一个室内机开机时,主控单元30的供电控制方法进行了举例说明,下面继续以图3为例,对空调系统中多个室内机中至少两个室内机开机时,主控单元的供电控制方法进行详细说明。
在本公开的一个实施例中,在多个室内机中存在至少两个室内机需要开机时,需要开机的室内机对应的整流电路同时工作。
举例来说,当室内机1和室内机2接收到开机指令后,室内机1输出交流电至整流电路1,整流电路1将接收的室内机1输出的交流电转换为直流电发送给开关电源电路,室内机2输出的交流电至整流电路2,整流电路2将接收的室内机2输出的交流电转换为直流电发送给开关电源电路,开关电源电路对整流电路1和整流电路2输出的直流电转换为低压直流电,从而对主控单元供电。也就是说,主控单元通过运行中的所有室内机进行供电。
根据本公开的一个实施例,主控单元还被配置为,通过先开机的室内机所对应的内机通讯单元与该先开机的室内机进行通讯,以获取开机指令,并根据开机指令控制该先开机的室内机与室外机之间的供电控制开关单元闭合,以通过该先开机的室内机给室外机供电,以及在后开机的室内机开机时,通过外机通讯单元与室外机进行通讯,以调节室外机的运行参数。
举例来说,假设室内机1先开机,当室内机1接收到开机指令后,室内机1开机运行,并控制与整流电路1之间的上电控制开关闭合,室内机1提供交流电给整流电路1,通过开关电源电路给主控单元供电,主控单元上电运行,并进行初始化,即通过继电器驱动电路1控制继电器RY1和RY2打开,通过继电器驱动电路2控制继电器RY3和RY4打开。主控单元通过内机1通讯单元与室内机1建立电流环双向通讯,并通过继电器驱动电路1控制继电器RY1和RY2闭合,控制室内机1给室外机供电。室外机上电运行后,主控单元通过外机通讯单元与室外机建立电流环双向通讯,并根据室内机1的控制指令调整室外机的运行参数,同时通过管阀驱动电路1控制室外机和室内机1之间的管阀开度。
当控制室内机2开机后,整流电路2之间的上电控制开关闭合,室内机2提供交流电给整流电路2,整流电路2输出的直流电输入开关电源电路,此时开关电源电路将整流电路1和整流电路2输入的直流电转换为给主控单元供电的低压直流电,主控单元由室内机1和室内机2同时供电。主控单元通过内机2通讯单元与室内机2建立电流环通讯,保持双向通讯。此时,主控单元将室内机2的开机信号通过外机通讯单元发送给室外机,室外机识别到新增室内机2,根据新增室内机2的能力需求,调整室外机的运行参数,主控单元通过管阀驱动电路1控制室内机2与室外机之间的管阀开度,从而保证后开启的室内机2正常工作。
也就是说,供电控制装置控制在先开启的室内机1给室外机供电,而后开启的室内机2与室外机之间继电器RY3和RY4保持打开状态,不对室外机进行供电。
根据本公开的一个实施例,主控单元还被配置为,在多个室内机中存在至少两个室内机 同时工作时,如果先开机的室内机关机,则通过先开机的室内机所对应的内机通讯单元与该先开机的室内机进行通讯,以获取关机指令,并根据关机指令调节室外机的运行参数,以及保持该先开机的室内机与室外机之间的供电控制开关单元处于闭合状态。
举例来说,在室内机1和室内机2正常工作时,如果先开的室内机1接收到了关机指令,室内机1关机,并基于电流环通过内机1通讯模块将关机指令发送至主控单元,主控单元通过外机通讯单元将室内机1的关机指令发送给室外机,室外机接收后,根据当前搭配的能力需求调整室外机运行参数(即压缩机、风机、管阀开度、温度控制等运行参数)。由于室内机1是给室外机的供电内机,且当前有其他室内机即室内机2工作,因此,在控制室内机1进入预设关机程序,室内机1关机后,主控单元通过继电器驱动电路1控制继电器RY1和RY2保持闭合状态,控制室内机1继续给室外机供电,避免室外机停机。也就是说,在给室外机供电的室内机关机后,如果存在其他室内机继续工作的情况,则保持该室内机给室外机的供电,以保证室外机的正常运行和其他工作状态下的室内机的正常运行。
根据本公开的一个实施例,主控单元还被配置为,在多个室内机中存在至少两个室内机同时工作时,如果后开机的室内机关机,则通过后开机的室内机所对应的内机通讯单元与该后开机的室内机进行通讯,以获取关机指令,并根据关机指令调节室外机的运行参数,以及通知该后开机的室内机断开该后开机的室内机与相应整流电路之间的上电控制开关。
具体而言,在室内机1和室内机2正常工作时,如果后开的室内机2先关机,那么,当室内机2关机时,室内机2将关机指令通过内机2通讯单元发送给主控单元,主控单元通过外机通讯单元发送至室外机,室外机收到后,根据当前搭配的能力需求调整室外机运行参数。由于室内机2不是室外机的供电室内机,因此,控制室内机2进入关机程序,室内机2关机,室内机2控制与整流电路2之间的上电控制开关断开,整流电路2停止工作,仅整流电路1工作,此时,室内机1给主控单元供电。
根据本公开的一个实施例,主控单元还被配置为,在与多个室内机中至少两个室内机同时进行通讯时,确定参与通讯的室内机的累计工作时间,并根据累计工作时间确定进行供电的室内机。
举例来说,当有多台室内机同时和主控单元保持通讯时,主控单元会根据此各室内机前面一段时间内的工作累积时间长短进行排序,工作累积时间长的室内机会被安排优先为室外机供电,从而避免多台室内机使用时,供电内机过多次数掉电而要切换供电带来的影响。
根据本公开的一个实施例,主控单元还被配置为,在多个室内机中存在至少两个室内机同时工作时,如果进行供电的室内机掉电,则确定参与通讯的室内机的累计工作时间,并根据累计工作时间确定进行供电切换的室内机,以及在控制掉电的室内机与室外机之间的供电控制开关单元断开后,控制供电切换的室内机与室外机之间的供电控制开关单元闭合。
具体而言,当多台室内机工作时,供电的室内机突然掉电,室外机会突然掉电不工作,由于处于工作状态下的其他室内机与相应供电电源相连,因此可保持不停机,并继续保持对主控单元的供电,由于供电单元中至少还有一路整流电路工作,因此主控单元可以正常工作,同时主控单元与开机工作状态下的其他室内机通过相应的内机通讯单元保持通讯。 主控单元可以通过供电的室内机和室外机的通讯信号丢失来判断供电的室内机掉电,启动切换供电程序。此时,主控单元会在保持通讯的室内机中选择前一段预设时间内累积使用时间最长的室内机给室外机供电,即主控单元控制掉电的室内机给室外机供电回路的供电控制开关单元断开,控制即将给室外机供电的室内机与室外机之间供电控制开关单元闭合,从而完成供电电源切换,室外机重新启动并根据当前搭配的能力需求调整室外机运行参数,使工作状态下的室内机恢复正常工作。需要说明的时,上述预设时间可根据实际情况进行设定,此处不作限制。
综上,根据本公开实施例的空调系统的供电控制装置,空调系统包括室外机和多个室内机,每个室内机适于分别连接到供电电源,供电控制装置包括:多个供电控制开关单元,每个供电控制开关单元分别连接在对应室内机与室外机之间的供电回路中,并通过供电单元将每个室内机提供的交流电转换为直流电以给主控单元供电,主控单元控制多个供电控制开关单元中的一个闭合,以使相应室内机给室外机供电。由此,该装置通过供电电源对室内机提供的交流电进行转换,以给主控单元供电,主控单元通过控制供电控制开关单元中的一个闭合,使相应室内机给室外机供电,保证了空调系统的正常运行。
对应上述实施例,本公开还提出了一种空调系统。
如图7所示,本公开实施例的空调系统100包括上述的空调系统的供电控制装置300。
根据本公开实施例的空调系统,基于上述的空调系统的供电控制装置,通过供电电源对室内机提供的交流电进行转换,以给主控单元供电,主控单元通过控制供电控制开关单元中的一个闭合,使相应室内机给室外机供电,保证了空调系统的正常运行。
对应上述实施例,本公开还提出了一种空调系统的供电控制方法。
根据本公开的一个实施例,如图8所示,空调系统100包括室外机110、多个室内机120、集控器130,每个室内机120适于分别连接到供电电源200,每个室内机120与室外机110之间的供电回路中设有供电控制开关单元140,多个室内机120同时给集控器130供电。
如图9所示,该空调系统的供电控制方法可包括:
S1,响应于供电指令,通过集控器控制多个供电控制开关单元中的一个闭合,以使相应室内机给室外机供电。
根据本公开的一个实施例,集控器包括多个整流电路和开关电源电路,每个整流电路被配置为对相应室内机提供的交流电进行整流,开关电源电路被配置为将每个整流电路输出的电源转换为直流电,其中,通过集控器控制多个供电控制开关单元中的一个闭合,包括:在多个室内机中仅有一个室内机开机时,通过该开机的室内机所对应的内机通讯单元与该开机的室内机进行通讯,以获取开机指令,并根据开机指令控制该开机的室内机与室外机之间的供电控制开关单元闭合。
根据本公开的一个实施例,在该开机的室内机关机时,该空调系统的供电控制方法还包括:通过外机通讯单元与室外机进行通讯以通知室外机关机,并在室外机关机后控制该开机的室内机与室外机之间的供电控制开关单元断开。
根据本公开的一个实施例,在该开机的室内机与室外机之间的供电控制开关单元断开 后,该空调系统的供电控制方法还包括:通知该关机的室内机断开该关机的室内机与相应整流电路之间的上电控制开关。
根据本公开的一个实施例,在多个室内机中存在至少两个室内机需要开机时,需要开机的室内机对应的整流电路同时工作,其中,通过集控器控制多个供电控制开关单元中的一个闭合,包括:通过先开机的室内机所对应的内机通讯单元与该先开机的室内机进行通讯,以获取开机指令,并根据开机指令控制该先开机的室内机与室外机之间的供电控制开关单元闭合,以通过该先开机的室内机给室外机供电。
根据本公开的一个实施例,在多个室内机中存在至少两个室内机同时工作时,该空调系统的供电控制方法还包括:如果先开机的室内机关机,则通过先开机的室内机所对应的内机通讯单元与该先开机的室内机进行通讯,以获取关机指令,并根据关机指令调节室外机的运行参数,以及保持该先开机的室内机与室外机之间的供电控制开关单元处于闭合状态。
根据本公开的一个实施例,在多个室内机中存在至少两个室内机同时工作时,该空调系统的供电控制方法还包括:如果后开机的室内机关机,则通过后开机的室内机所对应的内机通讯单元与该后开机的室内机进行通讯,以获取关机指令,并根据关机指令调节室外机的运行参数,以及通知该后开机的室内机断开该后开机的室内机与相应整流电路之间的上电控制开关。
根据本公开的一个实施例,在与多个室内机中至少两个室内机同时进行通讯时,该空调系统的供电控制方法还包括:确定参与通讯的室内机的累计工作时间,并根据累计工作时间确定进行供电的室内机。
根据本公开的一个实施例,在多个室内机中存在至少两个室内机同时工作时,该空调系统的供电控制方法还包括:如果进行供电的室内机掉电,则确定参与通讯的室内机的累计工作时间,并根据累计工作时间确定进行供电切换的室内机,以及在控制掉电的室内机与室外机之间的供电控制开关单元断开后,控制供电切换的室内机与室外机之间的供电控制开关单元闭合。
需要说明的是,本公开实施例的空调系统的供电控制方法中未披露的细节,请参照本公开上述实施例的空调系统的供电控制装置中所披露的细节,具体这里不再赘述。
综上,根据本公开实施例的空调系统的供电控制方法,空调系统包括室外机、多个室内机、集控器,每个室内机适于分别连接到供电电源,每个室内机与室外机之间的供电回路中设有供电控制开关单元,多个室内机同时给集控器供电,空调系统的供电控制方法,响应于供电指令,通过集控器控制多个供电控制开关单元中的一个闭合,以使相应室内机给室外机供电。由此,该方法通过室内机给集控器供电,集控器通过控制供电控制开关单元中的一个闭合,使相应室内机给室外机供电,保证了空调系统的正常运行。
需要说明的是,在流程图中表示或在此以其他方式描述的逻辑和/或步骤,例如,可以被认为是用于实现逻辑功能的可执行指令的定序列表,可以具体实现在任何计算机可读介质中,以供指令执行系统、装置或设备(如基于计算机的系统、包括处理器的系统或其他可以从指令执行系统、装置或设备取指令并执行指令的系统)使用,或结合这些指令执行 系统、装置或设备而使用。就本说明书而言,“计算机可读介质”可以是任何可以包含、存储、通信、传播或传输程序以供指令执行系统、装置或设备或结合这些指令执行系统、装置或设备而使用的装置。计算机可读介质的更举例来说示例(非穷尽性列表)包括以下:具有一个或多个布线的电连接部(电子装置),便携式计算机盘盒(磁装置),随机存取存储器(RAM),只读存储器(ROM),可擦除可编辑只读存储器(EPROM或闪速存储器),光纤装置,以及便携式光盘只读存储器(CDROM)。另外,计算机可读介质甚至可以是可在其上打印所述程序的纸或其他合适的介质,因为可以例如通过对纸或其他介质进行光学扫描,接着进行编辑、解译或必要时以其他合适方式进行处理来以电子方式获得所述程序,然后将其存储在计算机存储器中。
应当理解,本公开的各部分可以用硬件、软件、固件或它们的组合来实现。在上述实施方式中,多个步骤或方法可以用存储在存储器中且由合适的指令执行系统执行的软件或固件来实现。例如,如果用硬件来实现,和在另一实施方式中一样,可用本领域公知的下列技术中的任一项或他们的组合来实现:具有用于对数据信号实现逻辑功能的逻辑门电路的离散逻辑电路,具有合适的组合逻辑门电路的专用集成电路,可编程门阵列(PGA),现场可编程门阵列(FPGA)等。
在本说明书的描述中,参考术语“一个实施例”、“一些实施例”、“示例”、“具体示例”、或“一些示例”等的描述意指结合该实施例或示例描述的具体特征、结构、材料或者特点包含于本公开的至少一个实施例或示例中。在本说明书中,对上述术语的示意性表述不一定指的是相同的实施例或示例。而且,描述的具体特征、结构、材料或者特点可以在任何的一个或多个实施例或示例中以合适的方式结合。
此外,本公开实施例中所使用的“第一”、“第二”等术语,仅用于描述目的,而不可以理解为指示或者暗示相对重要性,或者隐含指明本实施例中所指示的技术特征数量。由此,本公开实施例中限定有“第一”、“第二”等术语的特征,可以明确或者隐含地表示该实施例中包括至少一个该特征。在本公开的描述中,词语“多个”的含义是至少两个或者两个及以上,例如两个、三个、四个等,除非实施例中另有明确举例来说限定。
在本公开中,除非实施例中另有明确的相关规定或者限定,否则实施例中出现的术语“安装”、“相连”、“连接”和“固定”等应做广义理解,例如,连接可以是固定连接,也可以是可拆卸连接,或成一体,可以理解的,也可以是机械连接、电连接等;当然,还可以是直接相连,或者通过中间媒介进行间接连接,或者可以是两个元件内部的连通,或者两个元件的相互作用关系。对于本领域的普通技术人员而言,能够根据举例来说实施情况理解上述术语在本公开中的具体含义。
尽管上面已经示出和描述了本公开的实施例,可以理解的是,上述实施例是示例性的,不能理解为对本公开的限制,本领域的普通技术人员在本公开的范围内可以对上述实施例进行变化、修改、替换和变型。

Claims (23)

  1. 一种空调系统的供电控制装置,所述空调系统包括室外机和多个室内机,每个所述室内机适于分别连接到供电电源,所述供电控制装置包括:
    多个供电控制开关单元,每个所述供电控制开关单元分别连接在对应室内机与所述室外机之间的供电回路中;
    供电单元和主控单元,所述供电单元被配置为将每个所述室内机提供的交流电转换为直流电以给所述主控单元供电,所述主控单元被配置为控制多个所述供电控制开关单元中的一个闭合,以使相应室内机给所述室外机供电。
  2. 根据权利要求1所述的供电控制装置,其中,所述供电单元包括:
    多个整流电路,每个所述整流电路被配置为对相应室内机提供的交流电进行整流;
    开关电源电路,被配置为将每个所述整流电路输出的电源转换为所述直流电。
  3. 根据权利要求2所述的供电控制装置,其中,在每个所述整流电路与相应室内机之间还设置有上电控制开关,所述上电控制开关在相应室内机开机时闭合,以便开机的室内机给对应的整流电路提供交流电。
  4. 根据权利要求1-3中任一项所述的供电控制装置,其中,所述供电控制装置还包括外机通讯单元和多个内机通讯单元,其中,所述主控单元还被配置为通过每个所述内机通讯单元与相应室内机进行通讯,并通过所述外机通讯单元与所述室外机进行通讯。
  5. 根据权利要求4所述的供电控制装置,其中,所述主控单元还被配置为,在多个所述室内机中仅有一个室内机开机时,通过该开机的室内机所对应的内机通讯单元与该开机的室内机进行通讯,以获取开机指令,并根据所述开机指令控制该开机的室内机与所述室外机之间的供电控制开关单元闭合,以及通过所述外机通讯单元与所述室外机进行通讯。
  6. 根据权利要求5所述的供电控制装置,其中,所述主控单元还被配置为,在该开机的室内机关机时,通过所述外机通讯单元与所述室外机进行通讯以通知所述室外机关机,并在所述室外机关机后控制该开机的室内机与所述室外机之间的供电控制开关单元断开。
  7. 根据权利要求6所述的供电控制装置,其中,所述主控单元还被配置为,在该开机的室内机与所述室外机之间的供电控制开关单元断开后,通知该关机的室内机断开该关机的室内机与相应整流电路之间的上电控制开关。
  8. 根据权利要求4所述的供电控制装置,其中,在多个所述室内机中存在至少两个室内机需要开机时,需要开机的室内机对应的整流电路同时工作。
  9. 根据权利要求8所述的供电控制装置,其中,所述主控单元还被配置为,通过先开机的室内机所对应的内机通讯单元与该先开机的室内机进行通讯,以获取开机指令,并根据所述开机指令控制该先开机的室内机与所述室外机之间的供电控制开关单元闭合,以通过该先开机的室内机给所述室外机供电,以及在后开机的室内机开机时,通过所述外机通讯单元与所述室外机进行通讯,以调节所述室外机的运行参数。
  10. 根据权利要求8所述的供电控制装置,其中,所述主控单元还被配置为,在多个所 述室内机中存在至少两个室内机同时工作时,
    如果先开机的室内机关机,则通过先开机的室内机所对应的内机通讯单元与该先开机的室内机进行通讯,以获取关机指令,并根据所述关机指令调节所述室外机的运行参数,以及保持该先开机的室内机与所述室外机之间的供电控制开关单元处于闭合状态。
  11. 根据权利要求8所述的供电控制装置,其中,所述主控单元还被配置为,在多个所述室内机中存在至少两个室内机同时工作时,
    如果后开机的室内机关机,则通过后开机的室内机所对应的内机通讯单元与该后开机的室内机进行通讯,以获取关机指令,并根据所述关机指令调节所述室外机的运行参数,以及通知该后开机的室内机断开该后开机的室内机与相应整流电路之间的上电控制开关。
  12. 根据权利要求8所述的供电控制装置,其中,所述主控单元还被配置为,在与多个所述室内机中至少两个室内机同时进行通讯时,确定参与通讯的室内机的累计工作时间,并根据所述累计工作时间确定进行供电的室内机。
  13. 根据权利要求8所述的供电控制装置,其中,所述主控单元还被配置为,在多个所述室内机中存在至少两个室内机同时工作时,
    如果进行供电的室内机掉电,则确定参与通讯的室内机的累计工作时间,并根据所述累计工作时间确定进行供电切换的室内机,以及在控制掉电的室内机与所述室外机之间的供电控制开关单元断开后,控制供电切换的室内机与所述室外机之间的供电控制开关单元闭合。
  14. 一种空调系统,包括根据权利要求1-13中任一项所述的供电控制装置。
  15. 一种空调系统的供电控制方法,所述空调系统包括室外机、多个室内机、集控器,每个所述室内机适于分别连接到供电电源,每个所述室内机与所述室外机之间的供电回路中设有供电控制开关单元,多个所述室内机同时给所述集控器供电,所述方法包括:
    响应于供电指令,通过所述集控器控制多个所述供电控制开关单元中的一个闭合,以使相应室内机给所述室外机供电。
  16. 根据权利要求15所述的方法,其中,所述集控器包括多个整流电路和开关电源电路,每个所述整流电路被配置为对相应室内机提供的交流电进行整流,所述开关电源电路被配置为将每个所述整流电路输出的电源转换为直流电,其中,通过所述集控器控制多个所述供电控制开关单元中的一个闭合,包括:
    在多个所述室内机中仅有一个室内机开机时,通过该开机的室内机所对应的内机通讯单元与该开机的室内机进行通讯,以获取开机指令,并根据所述开机指令控制该开机的室内机与所述室外机之间的供电控制开关单元闭合。
  17. 根据权利要求16所述的方法,其中,在该开机的室内机关机时,所述方法还包括:
    通过外机通讯单元与所述室外机进行通讯以通知所述室外机关机,并在所述室外机关机后控制该开机的室内机与所述室外机之间的供电控制开关单元断开。
  18. 根据权利要求17所述的方法,其中,在该开机的室内机与所述室外机之间的供电控制开关单元断开后,所述方法还包括:
    通知该关机的室内机断开该关机的室内机与相应整流电路之间的上电控制开关。
  19. 根据权利要求16所述的方法,其中,在多个所述室内机中存在至少两个室内机需要开机时,需要开机的室内机对应的整流电路同时工作,其中,通过所述集控器控制多个所述供电控制开关单元中的一个闭合,包括:
    通过先开机的室内机所对应的内机通讯单元与该先开机的室内机进行通讯,以获取开机指令,并根据所述开机指令控制该先开机的室内机与所述室外机之间的供电控制开关单元闭合,以通过该先开机的室内机给所述室外机供电。
  20. 根据权利要求19所述的方法,其中,在多个所述室内机中存在至少两个室内机同时工作时,所述方法还包括:
    如果先开机的室内机关机,则通过先开机的室内机所对应的内机通讯单元与该先开机的室内机进行通讯,以获取关机指令,并根据所述关机指令调节所述室外机的运行参数,以及保持该先开机的室内机与所述室外机之间的供电控制开关单元处于闭合状态。
  21. 根据权利要求19所述的方法,其中,在多个所述室内机中存在至少两个室内机同时工作时,所述方法还包括:
    如果后开机的室内机关机,则通过后开机的室内机所对应的内机通讯单元与该后开机的室内机进行通讯,以获取关机指令,并根据所述关机指令调节所述室外机的运行参数,以及通知该后开机的室内机断开该后开机的室内机与相应整流电路之间的上电控制开关。
  22. 根据权利要求19所述的方法,其中,在与多个所述室内机中至少两个室内机同时进行通讯时,所述方法还包括:
    确定参与通讯的室内机的累计工作时间,并根据所述累计工作时间确定进行供电的室内机。
  23. 根据权利要求19所述的方法,其中,在多个所述室内机中存在至少两个室内机同时工作时,所述方法还包括:
    如果进行供电的室内机掉电,则确定参与通讯的室内机的累计工作时间,并根据所述累计工作时间确定进行供电切换的室内机,以及在控制掉电的室内机与所述室外机之间的供电控制开关单元断开后,控制供电切换的室内机与所述室外机之间的供电控制开关单元闭合。
PCT/CN2023/113611 2022-11-28 2023-08-17 空调系统及其供电控制装置和供电控制方法 WO2024113971A1 (zh)

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