WO2020093706A1 - 空调器及其室外机控制电路 - Google Patents

空调器及其室外机控制电路 Download PDF

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Publication number
WO2020093706A1
WO2020093706A1 PCT/CN2019/092902 CN2019092902W WO2020093706A1 WO 2020093706 A1 WO2020093706 A1 WO 2020093706A1 CN 2019092902 W CN2019092902 W CN 2019092902W WO 2020093706 A1 WO2020093706 A1 WO 2020093706A1
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Prior art keywords
unit
relay
outdoor
air conditioner
resistor
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PCT/CN2019/092902
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English (en)
French (fr)
Inventor
霍兆镜
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广东美的制冷设备有限公司
美的集团股份有限公司
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Publication of WO2020093706A1 publication Critical patent/WO2020093706A1/zh

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/06—Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger
    • F24F1/20—Electric components for separate outdoor units
    • F24F1/22—Arrangement or mounting thereof
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/88—Electrical aspects, e.g. circuits

Definitions

  • the present application relates to the technical field of air conditioners, in particular to an outdoor unit control circuit of an air conditioner and an air conditioner.
  • the power supply control of the outdoor unit in the inverter air conditioner generally uses two large current relays for control, one in the indoor unit circuit board and the other in the outdoor unit circuit board.
  • you need to supply power to the outdoor unit first turn on the relay in the circuit board of the indoor unit to make the outdoor unit energized.
  • the outdoor unit has a large electrolytic capacitor, a thermistor must be used in the main circuit, first the large electrolytic capacitor, and then the high-current relay in the outdoor unit circuit board to short-circuit the thermistor.
  • the cost is high; the control of the high-current relay requires a large current and large energy consumption; the large-current relay has a large volume and occupies more circuit board space.
  • an object of the present application is to propose an outdoor unit control circuit for an air conditioner.
  • This circuit can realize the power supply control of the outdoor unit without providing a large current relay on the indoor unit circuit board, thereby reducing costs and controlling energy consumption At the same time, free up space on the indoor unit circuit board.
  • Another object of the present application is to propose an air conditioner.
  • an embodiment of the present application provides an outdoor unit control circuit for an air conditioner
  • the air conditioner includes: an indoor side communication unit and an outdoor side communication unit, and the first output end of the indoor side passing unit passes A first connection line is connected to the first input end of the outdoor-side communication unit, and a second output end of the indoor-side passing unit is connected to a second input end of the outdoor-side communication unit through a second connection line;
  • the outdoor unit control circuit includes: an outdoor unit controller; a rectifier bridge, the first AC input terminal of the rectifier bridge is connected to one side of the AC mains through the switch of the first relay, and the second AC input terminal of the rectifier bridge is connected to The other side of the AC mains is connected; a second relay, the switch of the second relay is connected in series with the thermistor in parallel with the switch of the first relay; a precharge unit, one end of the precharge unit is connected to the The DC positive output terminal of the rectifier bridge is connected, and the other end of the precharge unit is connected to the DC negative output terminal
  • the outdoor unit control circuit of the air conditioner when the air conditioner is powered on, the indoor communication unit and the outdoor communication unit form a power supply loop, the switch unit is turned on, and the second relay is powered on to close to charge the precharge unit Pre-charging is performed. After the pre-charging unit pre-charging is completed, the control unit controls the switch unit to open, and the outdoor unit controller controls the first relay to close to power the outdoor unit of the air conditioner.
  • the circuit can realize the power supply control of the outdoor unit without setting a large current relay on the indoor unit circuit board, thereby releasing the space of the indoor unit circuit board while reducing costs and controlling energy consumption.
  • the outdoor unit control circuit of the air conditioner according to the above embodiments of the present application may also have the following additional technical features:
  • the above outdoor unit control circuit of the air conditioner further includes: an EMC unit, the EMC (Electro Magnetic Compatibility, electromagnetic compatibility) unit is connected between the AC mains and the rectifier bridge .
  • EMC Electro Magnetic Compatibility, electromagnetic compatibility
  • the switch unit includes: a first switch tube, a collector of the first switch tube is connected to one end of the coil of the second relay; a first resistor, the first resistor One end is respectively connected to the other end of the coil of the second relay and the first connection line; a second resistor, one end of the second resistor is connected to the other end of the first resistor, and the first resistor There is a first connection point between the other end of the second resistor and one end of the second resistor, the other end of the second resistor is connected to the base of the first switch, and the other end of the second resistor is connected to the There is a second connection point between the bases of the first switch tube; a third resistor, one end of the third resistor is connected to the second connection point, and the other end of the third resistor is connected to the first switch The emitter of the tube is connected to the second connection line.
  • the control unit includes: a photocoupler, the photocoupler includes a light emitting diode and a light receiving transistor, and an anode of the light emitting diode is connected to a first preset power supply through a fourth resistor, the The cathode of the light emitting diode is connected to the outdoor unit controller, the collector of the light receiving transistor is connected to the first connection point, and the emitter of the light receiving transistor is connected to the second connection line.
  • the first relay is a large current relay
  • the second relay is a small current relay
  • another embodiment of the present application provides an air conditioner including the outdoor unit control circuit of the air conditioner.
  • the switch unit when the air conditioner is powered on, the indoor communication unit and the outdoor communication unit form a power supply loop, the switch unit is turned on; the second relay is powered on and closed to Pre-charge the pre-charge unit, the control unit controls the switch unit to open after the pre-charge unit is pre-charged, the outdoor unit controller controls the first relay to close, the outdoor unit of the air conditioner is powered on, no need to set a large current on the indoor unit circuit board
  • the relay can realize the power supply control of the outdoor unit, so that it can release the space of the indoor unit circuit board while reducing costs and controlling energy consumption.
  • FIG. 1 is a block diagram of an outdoor unit control circuit of an air conditioner in the related art
  • FIG. 2 is a block diagram of an outdoor unit control circuit of an air conditioner according to an embodiment of the present application
  • FIG. 3 is a schematic structural diagram of an indoor-side communication unit and an outdoor-side communication unit according to an embodiment of the present application;
  • FIG. 4 is a circuit topology diagram of an outdoor unit control circuit of an air conditioner according to an embodiment of the present application.
  • FIG. 5 is a schematic structural diagram of a switching power supply according to an embodiment of the present application.
  • the outdoor unit control circuit includes: an outdoor unit controller (not specifically shown in the figure), a rectifier bridge 10, a second relay K2, a precharge unit 20, a switch unit 30, and a control unit 40.
  • the first AC input terminal of the rectifier bridge 10 is connected to one side of the AC mains AC through the switch of the first relay K1, and the second AC input terminal of the rectifier bridge 10 is connected to the other side of the AC mains AC.
  • the switch of the second relay K2 is connected in series with the thermistor PTC1 in parallel with the switch of the first relay K1.
  • One end of the precharge unit 20 is connected to the DC positive output terminal of the rectifier bridge 10, and the other end of the precharge unit 20 is connected to the DC negative output terminal of the rectifier bridge 10.
  • the first end of the switch unit 30 is connected to one end of the coil of the second relay K2, the other end of the coil of the second relay K2 is connected to the first connection line ACN-IN, and the second end of the switch unit 30 is connected to the second connection line S Connected.
  • One end of the control unit 40 is connected to the control end of the switch unit 30, and the second end of the control unit 40 is connected to the second connection line S.
  • the indoor communication unit 1 and the outdoor communication unit 2 form a power supply circuit
  • the switch unit 30 is turned on
  • the second relay K2 is powered on and closed to precharge the precharge unit 20, and the control unit 40
  • the switch unit 30 is opened, the outdoor unit controller controls the first relay K1 to close, and the outdoor unit of the air conditioner is powered on.
  • IOComR stands for: indoor unit signal receiving end
  • IOComS stands for indoor unit data sending end
  • RXD is outdoor unit signal receiving end
  • TXD is outdoor unit signal sending end.
  • the first relay K1 is a large current relay
  • the second relay K2 is a small current relay
  • the specific structures of the indoor-side communication unit 1 and the outdoor-side communication unit 2 can be referred to FIG. 3, which will not be repeated here.
  • other forms are also possible, which can realize the communication between the indoor-side communication unit 1 and the outdoor-side communication unit 2 of the air conditioner Purpose.
  • the indoor side communication unit 1 and the outdoor side communication unit 2 have no power supply, the photocoupler IC4 of the indoor side communication unit 1 is disconnected, and the first connection line ACN-IN and the second connection line S are in a disconnected state. No power supply circuit is formed, so that the coil of the second relay K2 is de-energized, and the second relay K2 is turned off.
  • the indoor unit controller of the air conditioner controls the photocoupler IC4 of the indoor side communication unit 1 to turn on, the indoor side communication unit 1 and the outdoor side communication unit 2 form a power supply circuit, and the first connection line ACN-IN and the first The second connection line S is electrically turned on, the switch unit 30 is turned on, the coil of the second relay K2 is energized, K2 is turned on and closed, and the precharge unit 20 is precharged through the thermistor PTC1 to avoid overcurrent when the relay is closed. Big impact on the circuit.
  • the control unit 40 controls the switch unit 30 to open, and the outdoor unit controller controls the first relay K1 to close to supply power to the outdoor unit of the air conditioner, whereby the outdoor unit can be turned on.
  • the outdoor unit control circuit is located on the outdoor unit control board, and the first relay K1 is a precharge relay, which can use a small current relay, thereby reducing power consumption, without having to set a high current relay on the indoor unit control board.
  • the cost of low current relays is low, generally 70% lower than that of high current relays.
  • the control of small current relays requires only a small current to control, the energy consumption can be reduced by more than 1W, and the small current relays are small and only have large current relays. Less than 30%, occupying less circuit board space. Therefore, the circuit can realize the power supply control of the outdoor unit without installing a large current relay on the indoor unit circuit board, so that the space of the indoor unit circuit board can be released while reducing costs and controlling energy consumption.
  • the above outdoor unit control circuit may further include: an EMC unit 50.
  • the EMC unit 50 is connected between the alternating current mains AC and the rectifier bridge 10.
  • the EMC unit 50 may include a first inductor L1, a first capacitor C1, and a second capacitor C2.
  • the EMC unit 50 can not only reduce the electromagnetic interference of the circuit to other devices, but also improve the resistance of the circuit to the electromagnetic interference existing in the environment.
  • the EMC unit can also be in other forms, as long as the application can be achieved.
  • the above outdoor unit control circuit may further include: a filtering unit 60, which is connected between the rectifier bridge 10 and the pre-charging unit 20.
  • the filtering unit 60 may include a third capacitor C3, and the filtering unit 60 may absorb spikes and pulses in the circuit to play the role of smoothing.
  • the outdoor unit control circuit may further include a fuse FUSE1 voltage stabilizing device ZR1.
  • the fuse FUSE1 can perform overcurrent protection, and the voltage stabilizing device ZR1 can keep the voltage input to the rectifier bridge 1 stable.
  • the precharge unit 20 may include a large-capacity electrolytic capacitor E1.
  • the switching unit 30 may include: a first switching transistor Q1, a first resistor R1, a second resistor R2, and a third resistor R3.
  • the collector of the first switch Q1 is connected to one end of the coil of the second relay K2.
  • One end of the first resistor R1 is respectively connected to the other end of the coil of the second relay K2 and the first connection line ACN-IN.
  • One end of the second resistor R2 is connected to the other end of the first resistor R1, and there is a first connection point A between the other end of the first resistor R1 and one end of the second resistor R2, and the other end of the second resistor R2 is connected to the first
  • the base of the switch Q1 is connected, and the other end of the second resistor R2 and the base of the first switch Q1 have a second connection point B.
  • One end of the third resistor R3 is connected to the second connection point B, and the other end of the third resistor R3 is connected to the emitter of the first switching tube Q1 and then connected to the second connection line S.
  • the control unit 40 may include: a photocoupler IC1.
  • the photocoupler IC1 includes a light emitting diode and a light receiving transistor.
  • the anode of the light emitting diode is connected to the first preset power supply VCC1 through a fourth resistor R4.
  • the cathode of the light emitting diode is connected to the outdoor unit controller.
  • the collector of the light receiving transistor is connected to the first Point A is connected, and the emitter of the light receiving transistor is connected to the second connection line S.
  • the indoor unit controller of the air conditioner controls the photocoupler IC 4 of the indoor side communication unit 1 to be turned on, the indoor side communication unit 1 and the outdoor side communication unit 2 form a power supply circuit, and the first connection line ACN- IN and the second connection line S are electrically connected, the base of Q1 is charged and turned on through resistors R1 and R2, K2 is turned on and closed, and the precharge unit 20 is charged through K2 and the thermistor PTC1, when fully charged
  • the outdoor controller controls K1 to close and controls the photocoupler IC1 to turn on, that is, the outdoor unit controller sends a low-level signal to the cathode of the light-emitting diode.
  • the photoelectric coupler IC1 is turned on and Q1 is turned off, thereby disconnecting K2, and the outdoor unit is powered on and enters a normal working state.
  • the K1 and K2 are turned off because the relays K1 and K2 are not powered, and the outdoor unit is in the off state.
  • the current loop communication current of the indoor communication unit 1 and the outdoor communication unit 2 can be powered by a + 24V DC power supply or a 24V GND switching power supply.
  • the structure of the switching power supply can refer to the structure of FIG. 5 or other structures, which are not specifically limited.
  • the outdoor unit control circuit of the air conditioner when the air conditioner is powered on, the indoor communication unit and the outdoor communication unit form a power supply loop, the switch unit is turned on, and the second relay is powered on to close to charge the precharge unit Pre-charging is performed. After the pre-charging unit pre-charging is completed, the control unit controls the switch unit to open, and the outdoor unit controller controls the first relay to close to power the outdoor unit of the air conditioner.
  • the circuit can realize the power supply control of the outdoor unit without setting a large current relay on the indoor unit circuit board, thereby releasing the space of the indoor unit circuit board while reducing costs and controlling energy consumption.
  • the present application also provides an air conditioner including the outdoor unit control circuit of the air conditioner described above.
  • the air conditioner of the embodiment of the present application through the above outdoor unit control circuit, when the air conditioner is powered on, the indoor communication unit and the outdoor communication unit form a power supply loop, the switch unit is turned on, and the second relay is powered on to close
  • the precharge unit performs precharge
  • the control unit controls the switch unit to open after the precharge unit is precharged
  • the outdoor unit controller controls the first relay to close
  • the outdoor unit of the air conditioner is powered on, and there is no need to set a high current relay on the indoor unit circuit board
  • the power supply control of the outdoor unit can be realized, so that the space of the circuit board of the indoor unit can be released while reducing costs and controlling energy consumption.
  • first and second are used for description purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated.
  • the features defined with “first” and “second” may include at least one of the features either explicitly or implicitly.
  • the meaning of “plurality” is at least two, such as two, three, etc., unless otherwise specifically limited.
  • Any process or method description in a flowchart or otherwise described herein may be understood as representing a module, segment, or portion of code that includes one or more executable instructions for implementing custom logic functions or steps of a process , And the scope of the preferred embodiment of the present application includes additional implementations, in which the functions may not be performed in the order shown or discussed, including performing functions in a substantially simultaneous manner or in reverse order according to the functions involved, which shall It is understood by those skilled in the art to which the embodiments of the present application belong.
  • a "computer-readable medium” may be any device that can contain, store, communicate, propagate, or transmit a program for use by or in connection with an instruction execution system, apparatus, or device.
  • computer-readable media include the following: electrical connections (electronic devices) with one or more wires, portable computer cartridges (magnetic devices), random access memory (RAM), Read only memory (ROM), erasable and editable read only memory (EPROM or flash memory), fiber optic devices, and portable compact disk read only memory (CDROM).
  • the computer-readable medium may even be paper or other suitable medium on which the program can be printed, because, for example, by optically scanning the paper or other medium, followed by editing, interpretation, or other appropriate if necessary Process to obtain the program electronically and then store it in computer memory.
  • each part of the present application may be implemented by hardware, software, firmware, or a combination thereof.
  • multiple steps or methods may be implemented with software or firmware stored in memory and executed by a suitable instruction execution system.
  • a suitable instruction execution system For example, if it is implemented by hardware as in another embodiment, it can be implemented by any one or a combination of the following techniques known in the art: Discrete with logic gates for implementing logic functions on data signals Logic circuits, special integrated circuits with appropriate combinational logic gates, programmable gate arrays (PGA), field programmable gate arrays (FPGA), etc.
  • a person of ordinary skill in the art can understand that all or part of the steps carried in the method of the above embodiments can be completed by instructing relevant hardware through a program.
  • the program can be stored in a computer-readable storage medium. When executed, it includes one of the steps of the method embodiment or a combination thereof.
  • each functional unit in each embodiment of the present application may be integrated into one processing module, or each unit may exist alone physically, or two or more units are integrated into one module.
  • the above integrated modules may be implemented in the form of hardware or software function modules. If the integrated module is implemented in the form of a software functional module and sold or used as an independent product, it may also be stored in a computer-readable storage medium.
  • the storage medium mentioned above may be a read-only memory, a magnetic disk or an optical disk.
  • the terms “installation”, “connected”, “connected”, “fixed” and other terms should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection , Or integrated; it can be mechanical connection or electrical connection; it can be directly connected or indirectly connected through an intermediary, it can be the connection between two components or the interaction between two components.
  • installation can be a fixed connection or a detachable connection , Or integrated; it can be mechanical connection or electrical connection; it can be directly connected or indirectly connected through an intermediary, it can be the connection between two components or the interaction between two components.
  • the first feature is “on” or “under” the second feature may be that the first and second features are in direct contact, or the first and second features are indirectly through an intermediary contact.
  • the first feature is “above”, “above” and “above” the second feature may be that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature.
  • the first feature is "below”, “below”, and “below” the second feature may be that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is less horizontal than the second feature.

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Abstract

一种空调器及其室外机控制电路。室外机控制电路包括：整流桥（10），第一交流输入端通过第一继电器（K1）的开关与交流市电（AC）的一侧相连，第二交流输入端与交流市电（AC）的另一侧相连；第二继电器（K2），第二继电器（K2）的开关与热敏电阻（PTC1）串联后与第一继电器（K1）的开关并联；预充单元(20)；开关单元（30）；控制单元（40），当空调器上电时，室内侧通信单元（1）和室外侧通信单元（2）形成供电回路，开关单元（30）导通，第二继电器（K2）上电闭合，以对预充单元（20）进行预充，控制单元（40）在预充单元（20）预充结束后控制开关单元（30）断开，室外机控制器控制第一继电器（K1）闭合，室外机上电。该电路无需在室内机电路板设置大电流继电器即可实现室外机的供电控制，从而可以在降低成本、控制能耗的同时，释放室内机电路板的空间。

Description

空调器及其室外机控制电路
相关申请的交叉引用
本申请基于申请号为201811305948.2，申请日为2018年11月05日的中国专利申请提出，并要求该中国专利申请的优先权，该中国专利申请的全部内容在此引入本申请作为参考。
技术领域
本申请涉及空调器技术领域，特别涉及一种空调器的室外机控制电路和一种空调器。
背景技术
目前，如图1所示，变频空调器中室外机的供电控制一般采用了两个大电流的继电器进行控制，一个位于室内机电路板中，另外一个位于室外机电路板中。当需要给室外机供电时先开启室内机电路板中的继电器，使室外机得电。由于室外机具有大电解电容，故必须使用热敏电阻串到主回路中，先为大电解电容，然后再利用室外机电路板中的大电流继电器对热敏电阻进行短路处理。
由于上述方式采用了两个大电流的继电器进行控制，因此成本较高；大电流继电器的控制需要较大的电流，能耗大；大电流继电器的体积较大，占用较多的电路板空间。
发明内容
本申请旨在至少从一定程度上解决上述技术中的技术问题之一。为此，本申请的一个目的在于提出一种空调器的室外机控制电路，该电路无需在室内机电路板设置大电流继电器即可实现室外机的供电控制，从而可以在降低成本、控制能耗的同时，释放室内机电路板的空间。
本申请的另一个目的在于提出一种空调器。
为达到上述目的，本申请一方面实施例提出了一种空调器的室外机控制电路，所述空调器包括：室内侧通信单元和室外侧通信单元，所述室内侧通过单元的第一输出端通过第一连接线与所述室外侧通信单元的第一输入端相连，所述室内侧通过单元的第二输出端通过第二连接线与所述室外侧通信单元的第二输入端相连；所述室外机控制电路包括：室外机控制器；整流桥，所述整流桥的第一交流输入端通过第一继电器的开关与交流市电的一侧相连，所述整流桥的第二交流输入端与交流市电的另一侧相连；第二继电器，所述第二继电器的开关与热敏电阻串联后与所述第一继电器的开关并联；预充单元，所述预充单元 的一端与所述整流桥的直流正输出端相连，所述预充单元的另一端与所述整流桥的直流负输出端相连；开关单元，所述开关单元的第一端与所述第二继电器的线圈的一端相连，所述第二继电器的线圈的另一端与所述第一连接线相连，所述开关单元的第二端与所述第二连接线相连；控制单元，所述控制单元的一端与所述开关单元的控制端相连，所述控制单元的第二端与所述第二连接线相连；其中，当所述空调器上电时，所述室内侧通信单元和所述室外侧通信单元形成供电回路，所述开关单元导通，所述第二继电器上电闭合，以对所述预充单元进行预充，所述控制单元在所述预充单元预充结束后控制所述开关单元断开，所述室外机控制器控制所述第一继电器闭合，以对空调器的室外机进行供电。
根据本申请实施例的空调器的室外机控制电路，当空调器上电时，室内侧通信单元和室外侧通信单元形成供电回路，开关单元导通，第二继电器上电闭合，以对预充单元进行预充，控制单元在预充单元预充结束后控制开关单元断开，室外机控制器控制第一继电器闭合，以对空调器的室外机进行供电。该电路无需在室内机电路板设置大电流继电器即可实现室外机的供电控制，从而可以在降低成本、控制能耗的同时，释放室内机电路板的空间。
另外，根据本申请上述实施例提出的空调器的室外机控制电路还可以具有如下附加的技术特征：
根据本申请的一个实施例，上述的空调器的室外机控制电路还包括：EMC单元，所述EMC(Electro Magnetic Compatibility，电磁兼容性)单元连接在所述交流市电与所述整流桥之间。
根据本申请的一个实施例，所述开关单元包括：第一开关管，所述第一开关管的集电极与所述第二继电器的线圈的一端相连；第一电阻，所述第一电阻的一端分别与所述第二继电器的线圈的另一端和所述第一连接线相连；第二电阻，所述第二电阻的一端与所述第一电阻的另一端相连，且所述第一电阻的另一端与所述第二电阻的一端之间具有第一连接点，所述第二电阻的另一端与所述第一开关管的基极相连，且所述第二电阻的另一端与所述第一开关管的基极之间具有第二连接点；第三电阻，所述第三电阻的一端与所述第二连接点相连，所述第三电阻的另一端与所述第一开关管的发射极相连后与所述第二连接线相连。
根据本申请的一个实施例，所述控制单元包括：光电耦合器，所述光电耦合器包括发光二极管和光接收三极管，所述发光二极管的阳极通过第四电阻与第一预设电源相连，所述发光二极管的阴极与所述室外机控制器相连，所述光接收三极管的集电极与所述第一连接点相连，所述光接收三极管的发射极与所述第二连接线相连。
根据本申请的一个实施例，所述第一继电器为大电流继电器，所述第二继电器为小电 流继电器。
为达到上述目的，本申请另一方面实施例提出了一种空调器，其包括上述的空调器的室外机控制电路。
根据本申请实施例的空调器，通过上述的室外机控制电路，当空调器上电时，室内侧通信单元和室外侧通信单元形成供电回路，开关单元导；通，第二继电器上电闭合，以对预充单元进行预充，控制单元在预充单元预充结束后控制开关单元断开，室外机控制器控制第一继电器闭合，空调器的室外机上电，无需在室内机电路板设置大电流继电器即可实现室外机的供电控制，从而可以在降低成本、控制能耗的同时，释放室内机电路板的空间。
附图说明
图1是相关技术中空调器的室外机控制电路的方框示意图；
图2是根据本申请一个实施例的空调器的室外机控制电路的方框示意图；
图3是根据本申请一个实施例的室内侧通信单元和室外侧通信单元的结构示意图；
图4是根据本申请一个实施例的空调器的室外机控制电路的电路拓扑图；以及
图5是根据本申请一个实施例的开关电源的结构示意图。
具体实施方式
下面详细描述本申请的实施例，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，旨在用于解释本申请，而不能理解为对本申请的限制。
下面结合附图来描述本申请实施例的变频空调压缩机的电机电感参数优化控制方法、非临时性计算机可读存储介质、变频空调压缩机的电机电感参数优化控制装置和变频空调器。
图2是根据本申请一个实施例的空调器的室外机控制电路的方框示意图。其中，如图3所示，空调器包括：室内侧通信单元1和室外侧通信单元2，室内侧通过单元1的第一输出端通过第一连接线ACN-IN与室外侧通信单元2的第一输入端相连，室内侧通过单元1的第二输出端通过第二连接线S与室外侧通信单元2的第二输入端相连。如图2所示，室外机控制电路包括：室外机控制器(图中未具体示出)、整流桥10、第二继电器K2、预充单元20、开关单元30、控制单元40。
其中，整流桥10的第一交流输入端通过第一继电器K1的开关与交流市电AC的一侧相连，整流桥10的第二交流输入端与交流市电AC的另一侧相连。第二继电器K2的开关与热敏电阻PTC1串联后与第一继电器K1的开关并联。预充单元20的一端与整流桥10的 直流正输出端相连，预充单元20的另一端与整流桥10的直流负输出端相连。开关单元30的第一端与第二继电器K2的线圈的一端相连，第二继电器K2的线圈的另一端与第一连接线ACN-IN相连，开关单元30的第二端与第二连接线S相连。控制单元40的一端与开关单元30的控制端相连，控制单元40的第二端与第二连接线S相连。当空调器上电时，室内侧通信单元1和室外侧通信单元2形成供电回路，开关单元30导通，第二继电器K2上电闭合，以对预充单元20进行预充，控制单元40在预充单元20预充结束后控制开关单元30断开，室外机控制器控制第一继电器K1闭合，空调器的室外机上电。
图3中，IOComR代表：室内机信号接收端，IOComS代表：室内机数据发送端，RXD为室外机信号接收端，TXD为室外机信号发送端。
需要说明的是，在本申请中，第一继电器K1为大电流继电器，第二继电器K2为小电流继电器。
具体地，室内侧通信单元1和室外侧通信单元2的具体结构可参照图3，此处不再赘述，当然也可以为其它形式，能实现空调器的室内侧通信单元1和室外侧通信单元2通信的目的即可。当空调器关机时，室内侧通信单元1和室外侧通信单元2没有电供应，室内侧通信单元1的光耦IC4断开，第一连接线ACN-IN和第二连接线S处于断开状态，没有形成供电回路，从而第二继电器K2的线圈失电，第二继电器K2断开。当空调器上电时，空调器的室内机控制器控制室内侧通信单元1的光耦IC4导通，室内侧通信单元1和室外侧通信单元2形成供电回路，第一连接线ACN-IN和第二连接线S上电导通，开关单元30导通，第二继电器K2的想线圈得电，K2上电闭合，通过热敏电阻PTC1对预充单元20进行预充，以避免继电器闭合瞬间电流过大对电路造成冲击。预充结束后，控制单元40控制开关单元30断开，室外机控制器控制第一继电器K1闭合，以对空调器的室外机进行供电，由此室外机即可开启。
本申请中，室外机控制电路位于室外机控制板上，第一继电器K1为预充继电器，可采用小电流继电器，从而可以降低功耗，无需在室内机控制板上设置大电流继电器，即可实现室外机的供电控制。小电流继电器的成本低，一般比大电流继电器可降低70％成本，小电流继电器的控制只需要小电流即可控制，能耗能够减少1W以上，且小电流继电器体积小，体积只有大电流继电器的30％以下，占用较少电路板空间。由此，该电路无需在室内机电路板设置大电流继电器即可实现室外机的供电控制，从而可以在降低成本、控制能耗的同时，释放室内机电路板的空间。
根据本申请的一个实施例，如图4所示，上述的室外机控制电路还可以包括：EMC单元50。EMC单元50连接在交流市电AC与整流桥10之间。
具体地，如图4所示，EMC单元50可以包括第一电感L1、第一电容C1和第二电容 C2，具体连接方式参照图4，此处不再赘述。EMC单元50既可以降低电路的对其它设备的电磁干扰，又可以提高电路对所在环境中存在的电磁干扰的抵抗能力。当然，EMC单元也可以为其它形式，能达到申请的目的即可。
根据本申请的一个实施例，如图4所示，上述的室外机控制电路还可以包括：滤波单元60，滤波单元60连接在整流桥10与预充单元20之间。
具体地，如图4所示，滤波单元60可以包括第三电容C3，滤波单元60可以吸收电路中尖峰和脉冲，起到平波的作用。
需要说明的是，如图4所示，室外机控制电路还可以包括保险丝FUSE1稳压器件ZR1。保险丝FUSE1可以进行过流保护，稳压器件ZR1可以使输入至整流桥1的电压保持稳定。预充单元20可以包括大容量电解电容E1。
根据本申请的一个实施例，如图4所示，开关单元30可以包括：第一开关管Q1、第一电阻R1、第二电阻R2和第三电阻R3。
其中，第一开关管Q1的集电极与第二继电器K2的线圈的一端相连。第一电阻R1的一端分别与第二继电器K2的线圈的另一端和第一连接线ACN-IN相连。第二电阻R2的一端与第一电阻R1的另一端相连，且第一电阻R1的另一端与第二电阻R2的一端之间具有第一连接点A，第二电阻R2的另一端与第一开关管Q1的基极相连，且第二电阻R2的另一端与第一开关管Q1的基极之间具有第二连接点B。第三电阻R3的一端与第二连接点B相连，第三电阻R3的另一端与第一开关管Q1的发射极相连后与第二连接线S相连。
控制单元40可以包括：光电耦合器IC1。光电耦合器IC1包括发光二极管和光接收三极管，发光二极管的阳极通过第四电阻R4与第一预设电源VCC1相连，发光二极管的阴极与室外机控制器相连，光接收三极管的集电极与第一连接点A相连，光接收三极管的发射极与第二连接线S相连。
具体地，当空调器上电时，空调器的室内机控制器控制室内侧通信单元1的光耦IC4导通，室内侧通信单元1和室外侧通信单元2形成供电回路，第一连接线ACN-IN和第二连接线S上电导通，Q1基极通过电阻R1、R2得电并导通，K2从而导通并闭合，预充单元20通过K2以及热敏电阻PTC1进行充电，当充满电后，室外控制器控制供K1闭合，并控制光电耦合器IC1导通，即室外机控制器发送低电平信号至发光二极管的阴极。光电耦合器IC1导通，使Q1关闭，从而使K2断开，室外机上电，进入正常工作状态。当空调器关机或空调器突然断电时，由于继电器K1、K2没有供电，K1、K2关闭，室外机处于关闭状态。
在本申请中，室内侧通信单元1和室外侧通信单元2的电流环通信电流除可采用+24V的直流电源进行供电，也可采用24VGND开关电源进行供电。开关电源的结构可以参照图 5的结构，也可以为其它结构，不做具体地限定。
根据本申请实施例的空调器的室外机控制电路，当空调器上电时，室内侧通信单元和室外侧通信单元形成供电回路，开关单元导通，第二继电器上电闭合，以对预充单元进行预充，控制单元在预充单元预充结束后控制开关单元断开，室外机控制器控制第一继电器闭合，以对空调器的室外机进行供电。该电路无需在室内机电路板设置大电流继电器即可实现室外机的供电控制，从而可以在降低成本、控制能耗的同时，释放室内机电路板的空间。
此外，本申请还提出一种空调器，其包括上述的空调器的室外机控制电路。
根据本申请实施例的空调器，通过上述的室外机控制电路，当空调器上电时，室内侧通信单元和室外侧通信单元形成供电回路，开关单元导通，第二继电器上电闭合，以对预充单元进行预充，控制单元在预充单元预充结束后控制开关单元断开，室外机控制器控制第一继电器闭合，空调器的室外机上电，无需在室内机电路板设置大电流继电器即可实现室外机的供电控制，从而可以在降低成本、控制能耗的同时，释放室内机电路板的空间。
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申请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必须针对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一个或多个实施例或示例中以合适的方式结合。此外，在不相互矛盾的情况下，本领域的技术人员可以将本说明书中描述的不同实施例或示例以及不同实施例或示例的特征进行结合和组合。
此外，术语“第一”、“第二”仅用于描述目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括至少一个该特征。在本申请的描述中，“多个”的含义是至少两个，例如两个，三个等，除非另有明确具体的限定。
流程图中或在此以其他方式描述的任何过程或方法描述可以被理解为，表示包括一个或更多个用于实现定制逻辑功能或过程的步骤的可执行指令的代码的模块、片段或部分，并且本申请的优选实施方式的范围包括另外的实现，其中可以不按所示出或讨论的顺序，包括根据所涉及的功能按基本同时的方式或按相反的顺序，来执行功能，这应被本申请的实施例所属技术领域的技术人员所理解。
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具体的示例(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，本申请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。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。
本技术领域的普通技术人员可以理解实现上述实施例方法携带的全部或部分步骤是可以通过程序来指令相关的硬件完成，所述的程序可以存储于一种计算机可读存储介质中，该程序在执行时，包括方法实施例的步骤之一或其组合。
此外，在本申请各个实施例中的各功能单元可以集成在一个处理模块中，也可以是各个单元单独物理存在，也可以两个或两个以上单元集成在一个模块中。上述集成的模块既可以采用硬件的形式实现，也可以采用软件功能模块的形式实现。所述集成的模块如果以软件功能模块的形式实现并作为独立的产品销售或使用时，也可以存储在一个计算机可读取存储介质中。
上述提到的存储介质可以是只读存储器，磁盘或光盘等。尽管上面已经示出和描述了本申请的实施例，可以理解的是，上述实施例是示例性的，不能理解为对本申请的限制，本领域的普通技术人员在本申请的范围内可以对上述实施例进行变化、修改、替换和变型。
在本申请的描述中，需要理解的是，术语“中心”、“纵向”、“横向”、“长度”、“宽度”、“厚度”、“上”、“下”、“前”、“后”、“左”、“右”、“竖直”、“水平”、“顶”、“底”、“内”、“外”、“顺时针”、“逆时针”、“轴向”、“径向”、“周向”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本申请和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本申请的限制。
在本申请中，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”、“固定”等术语应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或成一体；可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通或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，可以根据具体情况理解上述术语在本申请中的具体含义。
在本申请中，除非另有明确的规定和限定，第一特征在第二特征“上”或“下”可以是第一和第二特征直接接触，或第一和第二特征通过中间媒介间接接触。而且，第一特征在第二特征“之上”、“上方”和“上面”可是第一特征在第二特征正上方或斜上方，或仅仅表示第一特征水平高度高于第二特征。第一特征在第二特征“之下”、“下方”和“下面”可以是第一特征在第二特征正下方或斜下方，或仅仅表示第一特征水平高度小于第二特征。
尽管上面已经示出和描述了本申请的实施例，可以理解的是，上述实施例是示例性的，不能理解为对本申请的限制，本领域的普通技术人员在本申请的范围内可以对上述实施例进行变化、修改、替换和变型。

Claims (6)

  1. 一种空调器的室外机控制电路，其特征在于，所述空调器包括：室内侧通信单元和室外侧通信单元，所述室内侧通过单元的第一输出端通过第一连接线与所述室外侧通信单元的第一输入端相连，所述室内侧通过单元的第二输出端通过第二连接线与所述室外侧通信单元的第二输入端相连；所述室外机控制电路包括：
    室外机控制器；
    整流桥，所述整流桥的第一交流输入端通过第一继电器的开关与交流市电的一侧相连，所述整流桥的第二交流输入端与交流市电的另一侧相连；
    第二继电器，所述第二继电器的开关与热敏电阻串联后与所述第一继电器的开关并联；
    预充单元，所述预充单元的一端与所述整流桥的直流正输出端相连，所述预充单元的另一端与所述整流桥的直流负输出端相连；
    开关单元，所述开关单元的第一端与所述第二继电器的线圈的一端相连，所述第二继电器的线圈的另一端与所述第一连接线相连，所述开关单元的第二端与所述第二连接线相连；
    控制单元，所述控制单元的一端与所述开关单元的控制端相连，所述控制单元的第二端与所述第二连接线相连；
    其中，当所述空调器上电时，所述室内侧通信单元和所述室外侧通信单元形成供电回路，所述开关单元导通，所述第二继电器上电闭合，以对所述预充单元进行预充，所述控制单元在所述预充单元预充结束后控制所述开关单元断开，所述室外机控制器控制所述第一继电器闭合，以对空调器的室外机进行供电。
  2. 根据权利要求1所述的空调器的室外机控制电路，其特征在于，还包括：
    滤波单元，所述滤波单元连接在所述整流桥与所述预充单元之间。
  3. 根据权利要求1或2所述的空调器的室外机控制电路，其特征在于，所述开关单元包括：
    第一开关管，所述第一开关管的集电极与所述第二继电器的线圈的一端相连；
    第一电阻，所述第一电阻的一端分别与所述第二继电器的线圈的另一端和所述第一连接线相连；
    第二电阻，所述第二电阻的一端与所述第一电阻的另一端相连，且所述第一电阻的另一端与所述第二电阻的一端之间具有第一连接点，所述第二电阻的另一端与所述第一开关管的基极相连，且所述第二电阻的另一端与所述第一开关管的基极之间具有第二连接点；
    第三电阻，所述第三电阻的一端与所述第二连接点相连，所述第三电阻的另一端与所 述第一开关管的发射极相连后与所述第二连接线相连。
  4. 根据权利要求3所述的空调器的室外机控制电路，其特征在于，所述控制单元包括：
    光电耦合器，所述光电耦合器包括发光二极管和光接收三极管，所述发光二极管的阳极通过第四电阻与第一预设电源相连，所述发光二极管的阴极与所述室外机控制器相连，所述光接收三极管的集电极与所述第一连接点相连，所述光接收三极管的发射极与所述第二连接线相连。
  5. 根据权利要求1-4中任一项所述的空调器的室外机控制电路，其特征在于，所述第一继电器为大电流继电器，所述第二继电器为小电流继电器。
  6. 一种空调器，其特征在于，包括如权利要求1-5中任一项所述的空调器的室外机控制电路。
PCT/CN2019/092902 2018-11-05 2019-06-26 空调器及其室外机控制电路 WO2020093706A1 (zh)

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Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109442595A (zh) * 2018-11-05 2019-03-08 广东美的制冷设备有限公司 空调器及其室外机控制电路
CN110030709A (zh) * 2019-04-29 2019-07-19 广东美的制冷设备有限公司 驱动控制电路、空调器、控制方法和计算机可读存储介质
CN110086156B (zh) * 2019-04-30 2022-02-25 广东美的制冷设备有限公司 驱动控制电路和空调器
CN111976415B (zh) * 2019-05-23 2022-02-11 广东美的制冷设备有限公司 室外机电控装置及车载空调器
CN110762808A (zh) * 2019-10-31 2020-02-07 广东美的制冷设备有限公司 驱动控制电路及空调器
CN114061124B (zh) * 2021-10-15 2024-02-13 佛山市顺德区美的电子科技有限公司 一种空调室外机控制电路、控制方法、设备及存储介质
CN114963346B (zh) * 2022-05-06 2023-08-25 宁波奥克斯电气股份有限公司 一种图腾柱电路、空调外机及空调器

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202975669U (zh) * 2012-12-07 2013-06-05 海信科龙电器股份有限公司 一种低待机功耗控制电路
CN103149530A (zh) * 2013-01-25 2013-06-12 合肥市英唐科技有限公司 继电器测试仪
CN203785123U (zh) * 2013-04-09 2014-08-20 三菱电机株式会社 室外机
WO2015118906A1 (ja) * 2014-02-05 2015-08-13 三菱電機株式会社 電力変換装置および空気調和装置
CN105066385A (zh) * 2015-08-25 2015-11-18 深圳创维空调科技有限公司 一种空调室外机待机功耗控制系统及室外机
CN105135594A (zh) * 2015-07-29 2015-12-09 深圳创维空调科技有限公司 一种空调室外机待机控制系统和空调
CN109442595A (zh) * 2018-11-05 2019-03-08 广东美的制冷设备有限公司 空调器及其室外机控制电路

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07305884A (ja) * 1994-05-09 1995-11-21 Matsushita Refrig Co Ltd 空気調和機の制御装置
JP2007060855A (ja) * 2005-08-26 2007-03-08 Matsushita Electric Ind Co Ltd 空気調和装置
JP5125262B2 (ja) * 2007-07-02 2013-01-23 ダイキン工業株式会社 空気調和機
CN204794747U (zh) * 2015-06-24 2015-11-18 广州视源电子科技股份有限公司 一种空调器供电电路
CN105515415A (zh) * 2015-12-25 2016-04-20 美的集团武汉制冷设备有限公司 一种功率转换电路、方法及空调器
CN206894505U (zh) * 2016-12-26 2018-01-16 江西科晨高新技术发展有限公司 一种开关电源装置
CN107547109B (zh) * 2017-08-04 2021-05-25 广东美的制冷设备有限公司 空调器电流环通信电路及空调器
CN108631690A (zh) * 2018-05-12 2018-10-09 广东希塔变频技术有限公司 变频控制电路、变频空调器控制电路及变频空调器

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202975669U (zh) * 2012-12-07 2013-06-05 海信科龙电器股份有限公司 一种低待机功耗控制电路
CN103149530A (zh) * 2013-01-25 2013-06-12 合肥市英唐科技有限公司 继电器测试仪
CN203785123U (zh) * 2013-04-09 2014-08-20 三菱电机株式会社 室外机
WO2015118906A1 (ja) * 2014-02-05 2015-08-13 三菱電機株式会社 電力変換装置および空気調和装置
CN105135594A (zh) * 2015-07-29 2015-12-09 深圳创维空调科技有限公司 一种空调室外机待机控制系统和空调
CN105066385A (zh) * 2015-08-25 2015-11-18 深圳创维空调科技有限公司 一种空调室外机待机功耗控制系统及室外机
CN109442595A (zh) * 2018-11-05 2019-03-08 广东美的制冷设备有限公司 空调器及其室外机控制电路

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