WO2023029713A1 - 多联机空调控制电路、电控装置及空调器 - Google Patents
多联机空调控制电路、电控装置及空调器 Download PDFInfo
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- WO2023029713A1 WO2023029713A1 PCT/CN2022/102758 CN2022102758W WO2023029713A1 WO 2023029713 A1 WO2023029713 A1 WO 2023029713A1 CN 2022102758 W CN2022102758 W CN 2022102758W WO 2023029713 A1 WO2023029713 A1 WO 2023029713A1
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- Prior art keywords
- power supply
- circuit
- power
- air conditioner
- controller
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- 238000005070 sampling Methods 0.000 claims description 12
- 239000003990 capacitor Substances 0.000 description 10
- 238000010586 diagram Methods 0.000 description 9
- 238000001816 cooling Methods 0.000 description 8
- 238000010438 heat treatment Methods 0.000 description 7
- 230000009286 beneficial effect Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000004378 air conditioning Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000003507 refrigerant Substances 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000000844 transformation Methods 0.000 description 1
Classifications
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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
- F24F11/00—Control or safety arrangements
- F24F11/88—Electrical aspects, e.g. circuits
-
- 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
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
- F24F11/46—Improving electric energy efficiency or saving
-
- 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
- F24F11/89—Arrangement or mounting of control or safety devices
Definitions
- the present application relates to the technical field of air conditioners, and in particular to a multi-connected air conditioner control circuit, an electric control device and an air conditioner.
- air conditioners are often configured with a low power consumption mode in order to save energy efficiency.
- the outdoor unit When the indoor unit is in the standby state, the outdoor unit is powered off and enters the standby mode.
- this mode cannot be applied to multi-connected air-conditioning systems.
- an outdoor unit drives multiple indoor units, it is impossible to control the power supply of the outdoor unit based on the operating status of a single indoor unit. Therefore, in a multi-connected system, the outdoor unit is always on In the power-on state, the power consumption increases.
- the main purpose of this application is to provide a multi-connected air conditioner control circuit, an electric control device and an air conditioner, aiming to solve the technical problem of high energy consumption of outdoor units in multi-connected air conditioners in the prior art.
- this application proposes a multi-connected air conditioner control circuit, which is applied to the outdoor unit of a multi-connected air conditioner.
- the multi-connected air conditioner control circuit includes: a power input terminal, a wake-up circuit, a controller and a first switch; The power input terminal is connected to the wake-up circuit, and the first switch is set between the controller and the power input terminal;
- the power input terminal is used for connecting to the first power supply
- a wake-up circuit configured to provide a second power supply to the controller when receiving a work signal sent by the indoor unit of the multi-connected air conditioner;
- the controller is configured to control the first switch to switch from the open state to the closed state when receiving the working signal and the second power supply, so as to receive the first power supply.
- the wake-up circuit includes a power input circuit and a power output circuit connected to each other, and the power input circuit is connected to the power supply circuit of the indoor unit;
- the power supply circuit is used to provide a third power supply to supply power to the indoor unit when it is in the power supply state;
- a power input circuit configured to use the third power as an operating signal when detecting the third power provided by the power supply circuit
- the power output circuit is used to convert the third power into the second power and transmit the second power to the controller.
- the wake-up circuit further includes a second switch, and the second switch is arranged between the power output circuit and the controller;
- the controller is also used to control the second switch to switch from the closed state to the open state when receiving the first power supply.
- the multi-connected air conditioner control circuit further includes a sampling circuit, and the sampling circuit is respectively connected to the power supply circuit and the controller;
- the sampling circuit is used to obtain the voltage signal corresponding to the third power supply, and transmit the voltage signal to the controller as a working signal.
- the multi-connected air conditioner control circuit further includes a power circuit, and the power circuit is arranged between the first switch and the controller;
- the power supply circuit is used to convert the first power supply into a fourth power supply compatible with the controller, and transmit the fourth power supply to the controller.
- the multi-connected air conditioner control circuit further includes a load power supply circuit connected to the power supply circuit;
- the power supply circuit is also used to convert the first power supply into a fifth power supply adapted to the load of the outdoor unit, and transmit the fifth power supply to the load power supply circuit;
- the load power supply circuit is used to drive the load according to the fifth power source.
- the controller is further configured to control the first switch to switch from the closed state to the open state when the working signal is not received.
- the first switch is a relay
- the control end of the relay is connected to the control end of the controller
- the first contact of the relay is connected to the power input end
- the second contact of the relay is connected to the power supply end of the controller.
- the present application also proposes an electric control device, which includes the above-mentioned multi-connected air conditioner control circuit.
- the present application also proposes an air conditioner, which includes the above-mentioned electronic control device; or, includes the above-mentioned multi-connected air conditioner control circuit.
- a multi-connected air conditioner control circuit is formed by setting a power input terminal, a wake-up circuit 20, a controller and a first switch on the outdoor unit of the multi-connected air conditioner.
- the controller is respectively connected with the power input terminal and the wake-up circuit, and the first switch is set between the controller and the power input terminal;
- the power input terminal is used to connect to the first power supply;
- the wake-up circuit is used to When the working signal sent by the indoor unit of the air conditioner, the second power supply is provided to the controller; a power supply.
- a switch is set between the controller in the outdoor unit and the first power supply as the working power supply, and the controller judges the required operating state of the outdoor unit according to the working signal sent by each indoor unit, so as to control the power-on of the controller itself. Or power down, so that the outdoor unit switches between the low power consumption mode and the working mode, realizing the configuration of the low power consumption mode for the outdoor unit in the multi-connected air conditioner, and reducing the power consumption of the outdoor unit.
- FIG. 1 is a schematic structural diagram of the first embodiment of the multi-connected air conditioner control circuit of the present application
- Fig. 2 is a schematic structural diagram of an embodiment of the multi-connected air conditioner of the present application
- FIG. 3 is a schematic structural diagram of the second embodiment of the multi-connected air conditioner control circuit of the present application.
- FIG. 4 is a circuit schematic diagram of an embodiment of the wake-up circuit of the present application.
- label name label name 10 power input 80 power circuit 20 wake up circuit 90
- FIG. 1 is a schematic structural diagram of the first embodiment of the multi-connected air conditioner control circuit of the present application, and the present application proposes the first embodiment of the multi-connected air conditioner control circuit.
- the multi-connected air conditioner control circuit is applied to the outdoor unit 50 of the multi-connected air conditioner.
- the multi-connected air conditioner control circuit includes: a power input terminal 10, a wake-up circuit 20, a controller 30 and a first switch 40; the controller 30 are respectively connected to the power input terminal 10 and the wake-up circuit 20 , and the first switch 40 is arranged between the controller 30 and the power input terminal 10 .
- the power input terminal 10 is used for connecting the first power supply.
- the wake-up circuit 20 is configured to provide a second power supply to the controller 30 when receiving the working signal sent by the indoor unit 60 of the multi-connected air conditioner.
- the controller 30 is configured to control the first switch 40 to switch from the open state to the closed state when receiving the working signal and the second power supply, so as to receive the first power supply.
- FIG. 2 is a schematic structural diagram of an embodiment of a multi-connected air conditioner of the present application.
- the multi-split air conditioner refers to an air conditioning system in which one outdoor unit 50 drives multiple indoor units 60, and the refrigerant output by the outdoor unit 50 is sent to each indoor unit 60 through a distribution element, so that each indoor unit 60 can complete heat exchange operation.
- the outdoor unit 50 and each indoor unit 60 are equipped with independent power supplies to provide power for the drivers and loads inside the outdoor unit 50 or each indoor unit 60 .
- the corresponding independent power supply is disconnected, so that the internal loads are in a power-off state, and the whole unit is in a low power consumption mode to save energy.
- the multi-connected air conditioner control circuit in this embodiment is arranged inside the outdoor unit 50, the controller 30 refers to the controller inside the outdoor unit 50, and the controller 30 can be combined with a corresponding drive circuit to form a driver for driving loads.
- the load may include components such as a compressor, a fan, and an electronic expansion valve.
- the driving circuits corresponding to various types of loads already have mature circuit structures, which will not be repeated here in this embodiment.
- the first power supply refers to the independent power supply configured by the outdoor unit 50, which may be a power supply provided by a device such as a power adapter or commercial power.
- each internal unit is powered by the first A power supply.
- a low power consumption mode is configured on the outdoor unit 50, and a first switch 40 is provided between the controller 30 and the power input terminal 10.
- the first switch 40 is in a closed state, and the controller 30 can receive the first power supply.
- the first switch 40 is in the off state, and the controller 30 cannot receive the first power supply, so it cannot execute the corresponding control logic.
- the outdoor unit 50 in low power mode.
- the state of the first switch 40 can be controlled by the controller 30 , of course, the first switch 40 can also be provided with an interactive component, so that the user can switch the working state of the outdoor unit 50 .
- This embodiment is mainly described by taking the automatic control of the outdoor unit 50 as an example.
- the controller 30 needs to control the state of the first switch 40 according to the working state of the indoor unit 60 .
- the outdoor unit 50 needs to provide corresponding cooling capacity or heating capacity. Therefore, the outdoor unit 50 can usually enter the low power consumption mode only when none of the indoor units 60 has cooling capacity or heating capacity demand.
- the working signal can be used to determine whether the indoor unit 60 is in the working mode, and whether there is a demand for cooling capacity or heating capacity, that is, to determine whether the outdoor unit 50 needs to enter the working mode. If the outdoor unit 50 receives the working signal, it determines that it needs to enter the working mode to provide the corresponding cooling or heating capacity for the indoor unit 60; if it does not receive the working signal, it determines that it needs to enter the working mode.
- the outdoor unit 50 entering the working mode means that equipment such as a compressor is powered on and operates, and transmits refrigerant to the indoor unit 60 to perform operations such as cooling or heating.
- each indoor unit 60 can communicate with the outdoor unit 50 respectively. When each indoor unit 60 enters the working mode, it sends a working signal to the outdoor unit 50, and the wake-up circuit 20 receives the working signal sent by any indoor unit 60. signal to provide the second power supply to the controller 30.
- the wake-up circuit 20 provides the second power supply to the controller 30 as a wake-up power supply, so that The controller 30 is powered on.
- the wake-up circuit 20 can be provided with a built-in power supply, and when receiving a work signal, convert the built-in power supply into a second power supply for output; or, the wake-up circuit 20 can also be connected to an external power supply, and when the work signal is received , the external power supply is converted into a second power supply for output.
- the controller 30 in order to determine the operating state of the indoor unit 60, the controller 30 also needs to receive the working signal. If the outdoor unit is in the low power consumption mode, the second power supply is used as the working power supply to enable the controller 30 to operate normally. At this time, if the controller 30 receives the working signal, it controls the first switch 40 to switch from the open state to the closed state, so as to After receiving the first power supply, the normal power supply is restored, and then the outdoor unit 50 wakes up from the low power consumption mode and enters the working mode.
- controller 30 is further configured to control the first switch 40 to switch from the closed state to the open state when the working signal is not received.
- the indoor unit 60 when the indoor unit 60 is in the working mode, it will continue to send a working signal to the outdoor unit 50, and whether the working signal is present can indicate whether the indoor unit 60 is in the working mode.
- the control unit in the indoor unit 60 detects its working state in real time, and generates a working signal when its own working state is in the working mode, and sends it to the outdoor unit 50 .
- the signal receiving unit of the outdoor unit 50 receives the working signal, it transmits it to the wake-up circuit 20 and the controller 30 .
- the controller 30 can control the first switch to switch from the closed state to the open state, so that the outdoor unit 50 enters the low power consumption mode.
- the first switch 40 can be a relay, the control terminal of the relay is connected to the control terminal of the controller 30, the second contact of the relay is connected to the power input terminal 10, and the first contact of the relay is connected to the control terminal of the controller 30. Power supply connection.
- control terminal of the relay can be the connection terminal of the relay coil, and the first contact and the second contact of the relay are closed when the relay coil is energized, and are opened when the relay coil is not energized.
- the first switch 40 is a normally open switch, and the control terminal of the controller 30 is configured to output control power. When the controller 30 receives the working signal and the second power, it outputs the control power to energize the relay coil, thereby turning on the power.
- the loop between the input terminal 10 and the power supply terminal of the controller 30 is used to receive the first power supply.
- the first switch 40 may also use other types of switching devices, which is not limited in this embodiment.
- a multi-connected air conditioner control circuit is formed by setting a power input terminal 10 , a wake-up circuit 20 , a controller 30 and a first switch 40 on the outdoor unit 50 of the multi-connected air conditioner.
- the power input terminal 10 is connected to the first power supply;
- the wake-up circuit 20 provides the second power supply to the controller 30 when receiving the working signal sent by the indoor unit 60 of the multi-connected air conditioner;
- the first switch 40 is controlled to switch from the open state to the closed state, so as to receive the first power supply.
- a switch is provided between the controller 30 in the outdoor unit 50 and the first power supply as the working power supply, and the controller 30 judges the required operating state of the outdoor unit 50 according to the working signal sent by each indoor unit 60, so as to control
- the power-on or power-off of the controller 30 itself makes the outdoor unit 50 switch between the low power consumption mode and the working mode, realizing the configuration of the low power consumption mode for the outdoor unit 50 in the multi-connected air conditioner, reducing the outdoor unit 50 power consumption.
- FIG. 3 is a schematic structural diagram of a second embodiment of a multi-connected air conditioner control circuit of the present application. Based on the above first embodiment. This application proposes a second embodiment of a multi-connected air conditioner control circuit.
- the wake-up circuit 20 includes a power input circuit 201 and a power output circuit 202 connected to each other, and the power input circuit 201 is connected to the power supply circuit of the indoor unit 60 .
- the power supply circuit is used to provide a third power supply to supply power to the indoor unit 60 when in a power supply state.
- the power input circuit 201 is configured to use the third power as an operating signal when detecting the third power provided by the power supply circuit.
- the power output circuit 202 is configured to convert the third power into the second power and transmit the second power to the controller 30 .
- the third power supply of the indoor unit 60 as the power supply is used as the working signal.
- the power supply circuit is used to convert the independent power supply corresponding to each indoor unit 60 into a power supply to drive the loads in each indoor unit 60 to run, and the third power supply may be the power supply.
- the operating state of the indoor unit 60 can be determined by determining whether the power supply circuit of the indoor unit provides power. Wherein, the power supply circuit already has a mature circuit structure, which will not be repeated in this embodiment.
- the power supply circuit of each indoor unit 60 is also connected to the power input circuit 201 in the outdoor unit 50, and when the power supply circuit supplies power to the load in the indoor unit 60, it also provides a third power supply to the power input circuit 201 at the same time, When the power supply circuit stops supplying power to the load in the indoor unit 60, it also stops supplying the third power to the power input circuit 201 at the same time.
- the third power supply is actually the power supply for the load in the indoor unit 60, its amplitude is usually relatively high. In order to avoid damage to the controller 30, it also needs to be stepped down; usually the third power supply can be 12V or 24V, The third power supply can be 3V or 5V. In addition, the third power supply is usually alternating current, and the second power supply is usually direct current, so the power output circuit 202 also needs to rectify the third power supply.
- the third power is also converted into the second power at the same time as the wake-up power of the controller 30 .
- the wake-up circuit 20 further includes a second switch 203, and the second switch 203 is arranged between the power output circuit 202 and the controller 30; the controller 30 is also used to control the second The second switch 203 switches from the closed state to the open state.
- the controller 30 can operate normally after receiving the first power supply. At this time, it is no longer necessary to wake up the power supply. By cutting off the loop between the power supply output circuit 202 and the controller 30, the controller 30 no longer Receives a second power source, further saving energy.
- the second switch 203 is a normally closed switch, specifically a relay. The controller 30 applies current to the relay coil of the second switch 203 after receiving the first power supply, so that the second switch 203 is switched from the closed state to the open state; when the controller 30 is not receiving the first power supply, the second The current on the relay coil of the switch 203 disappears, and the second switch 203 returns to the closed state.
- the second switch 203 may also use other types of switches, which is not limited in this embodiment.
- FIG. 4 is a circuit schematic diagram of an embodiment of the wake-up circuit of the present application. As an example, this embodiment also provides a schematic circuit diagram of the wake-up circuit 20 .
- the power input circuit 201 includes a first resistor R1, a second resistor, a first capacitor C1, a second capacitor C2 and a rectifier B.
- the first input end of the rectifier B is respectively connected to the first end of the first resistor R1 and the first end of the first capacitor C1, the second end of the first capacitor C1 is connected to the second input end of the rectifier B, and the first end of the rectifier B
- the first input end and the second input end are used to access AC power.
- the first output end of the rectifier B is respectively connected to the first end of the second resistor R2 and the first end of the second capacitor C2, the second end of the second capacitor C2 is connected to the second output end of the rectifier B, and the first end of the rectifier B
- the two output ends are grounded, and the second end of the second resistor R2 is connected to the power output circuit 202 .
- the power input circuit 201 is used to receive AC current, rectify it, and transmit DC power to the power output circuit 202 .
- the power output circuit 202 includes a power chip IC, a first inductor L1, a third capacitor C3, a third resistor R3 and a Zener diode T.
- the second switch 203 includes an electronic switch K whose control end is connected to the controller 30 .
- the input end of the power chip IC is connected to the second end of the second resistor, the output end of the power chip IC is respectively connected to the first end of the first inductor L1 and the cathode of the Zener diode T, and the second end of the first inductor L1 is respectively Connected with the first end of the third resistor R3, the first end of the third capacitor C3 and the first end of the electronic switch K, the anode of the Zener diode T, the second end of the third resistor R3 and the first end of the third capacitor C3 Both ends are grounded.
- the power chip IC is used to convert the voltage of the input DC power and output it through the filter circuit composed of the first inductor, the third capacitor and the third resistor.
- the wake-up circuit 20 is other circuits that implement similar functions, which is not limited in this embodiment.
- the power chip IC can also communicate with the controller 30. After receiving the first power, the controller 30 sends a shutdown signal to the power chip IC. After receiving the shutdown signal, the power chip IC stops outputting power. At this time, the second switch 203 may not be provided in the wake-up circuit 20, and automatic cut-off can also be realized.
- the multi-connected air conditioner control circuit also includes a sampling circuit 70, the sampling circuit 70 is respectively connected to the power supply circuit and the controller 30; the sampling circuit 70 is used to obtain the voltage signal corresponding to the third power supply, and The voltage signal is transmitted to the controller 30 as an operation signal.
- the sampling circuit 70 can firstly sample the third power source to obtain a DC power source, and then process the DC power source such as step-down, or output a lower voltage signal to the controller 30 .
- the sampling circuit 70 can also obtain a voltage signal from the output terminal of the power input circuit 201 .
- the controller 30 can determine the working state of the indoor unit 60 according to the voltage value of the voltage signal. If the voltage value of the voltage signal is low, it means that the indoor unit 60 is in a standby state; in working condition.
- the multi-connected air conditioner control circuit also includes a power supply circuit 80, the power supply circuit 80 is arranged between the first switch 40 and the controller 30; the power supply circuit 80 is used to convert the first power supply into a fourth power supply compatible with the controller 30, And transmit the fourth power to the controller 30 .
- the first power supply can be a power supply provided by a power adapter or a commercial power supply, and its voltage is usually 120V or 240V, and the required power supply voltage of the controller is relatively low, so the first power supply needs to be adjusted. adjustment, and then transmit it to the controller 30.
- the specific voltage of the fourth power supply is determined according to the specific parameters of the controller 30, if the rated voltage of the controller 30 is 5V, then the voltage value of the fourth power supply is 5V; if the rated voltage of the controller 30 is 8V, then the voltage value of the fourth power supply The voltage value is 8V.
- the power supply circuit 80 can be composed of a power management chip, and its specific circuit structure has mature technology, which will not be repeated in this embodiment.
- the multi-connected air conditioner control circuit also includes a load power supply circuit 90, which is connected to the power supply circuit 80; the power supply circuit 80 is also used to convert the first power supply into a fifth power supply adapted to the load of the outdoor unit 50, And transmit the fifth power supply to the load power supply circuit 90; the load power supply circuit 90 is used to drive the load according to the fifth power supply.
- the first power supply is the overall power supply of the outdoor unit 50, and after the outdoor unit 50 wakes up from the low power consumption mode, all kinds of loads inside the indoor unit 50 need to be powered on for operation. Therefore, in addition to providing power for the controller 30 , the power circuit 80 also needs to increase the power for various loads.
- the fifth power supply may include multiple power supplies with different voltages, which are used to supply power to the load, and the specific voltage value is determined according to the rated voltage of the load; for example, the fifth power supply may include 12V, 24V, etc.
- the circuit structure of the load power supply circuit 90 also has a mature technology, which will not be repeated in this embodiment.
- the wake-up circuit 20 includes a power input circuit 201 and a power output circuit 202 connected to the power supply circuit of the indoor unit 60 .
- the power input circuit 201 detects the third power provided by the power supply circuit, it uses the third power as the working signal.
- the power output circuit 202 converts the third power into the second power, and transmits the second power to the controller 30 .
- the power supply of the indoor unit 60 is multiplexed, and the power supply is used as a working signal.
- the power input circuit 201 receives the power supply, it means that the indoor unit 60 is in the working module, and the outdoor unit 50 also needs to enter the working mode; at the same time
- the third power source is converted to obtain the second power source, which is used as the driving power source of the controller 30, so that the controller 30 can operate normally, so that the outdoor unit 50 wakes up from the low power consumption module.
- the present application also proposes an electric control device, which includes the above-mentioned multi-connected air conditioner control circuit.
- the specific structure of the multi-connected air conditioner control circuit refers to the above-mentioned embodiments. Since the electronic control device can adopt the technical solutions of all the above-mentioned embodiments, it has at least the beneficial effects brought by the technical solutions of the above-mentioned embodiments, and will not repeat them here. A repeat.
- the present application also proposes an air conditioner, which includes the above-mentioned electronic control device; or, includes the above-mentioned multi-connected air conditioner control circuit.
- the specific structure of the electric control device or the multi-connected air conditioner control circuit refers to the above-mentioned embodiments. Since the air conditioner can adopt the technical solutions of all the above-mentioned embodiments, it has at least the beneficial effects brought by the technical solutions of the above-mentioned embodiments. Herein I won't repeat them one by one.
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Abstract
一种多联机空调控制电路、电控装置及空调器，应用于多联机空调的室外机（50），其包括：电源输入端（10），用于接入第一电源；唤醒电路（20），用于在接收到多联机空调的室内机（60）发送的工作信号时，向控制器（30）提供第二电源；控制器（30），用于在接收到工作信号和第二电源时，控制第一开关（40）从断开状态切换为闭合状态，以接收第一电源。实现在多联机空调中为室外机（50）配置低功耗模式，降低室外机（50）的功耗。
Description
本申请要求于2021年8月31日申请的、申请号为202111019328.4的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
本申请涉及空调技术领域，尤其涉及一种多联机空调控制电路、电控装置及空调器。
目前，空调器为了节约能效往往配置有低功耗模式，在室内机处于待机状态时，室外机掉电进入待机。然而，该模式无法应用于多联机空调系统，在室外机拖动多个室内机时，无法单独根据单个室内机的运行状态控制室外机的供电，因此在多联机系统中，室外机往往一直处于上电状态，导致能耗增加。
本申请的主要目的在于提供一种多联机空调控制电路、电控装置及空调器，旨在解决现有技术中多联机空调中，室外机能耗较高的技术问题。
为实现上述目的，本申请提出一种多联机空调控制电路，应用于多联机空调的室外机，多联机空调控制电路包括：电源输入端、唤醒电路、控制器和第一开关；控制器分别与电源输入端和唤醒电路连接，第一开关设置于控制器和电源输入端之间；
电源输入端，用于接入第一电源；
唤醒电路，用于在接收到多联机空调的室内机发送的工作信号时，向控制器提供第二电源；以及，
控制器，用于在接收到工作信号和第二电源时，控制第一开关从断开状态切换为闭合状态，以接收第一电源。
在一实施例中，唤醒电路包括相互连接的电源输入电路和电源输出电路，电源输入电路与室内机的供电电路连接；
供电电路，用于在处于供电状态时，提供第三电源，为室内机供电；
电源输入电路，用于检测到供电电路提供的第三电源时，将第三电源作为工作信号；以及，
电源输出电路，用于将第三电源转换成第二电源，并将第二电源传输至控制器。
在一实施例中，唤醒电路还包括第二开关，第二开关设置于电源输出电路与控制器之间；
控制器，还用于在接收到第一电源时，控制第二开关从闭合状态切换为断开状态。
在一实施例中，多联机空调控制电路还包括采样电路，采样电路分别与供电电路和控制器连接；
采样电路，用于获取第三电源对应的电压信号，并将电压信号作为工作信号传输至控制器。
在一实施例中，多联机空调控制电路还包括电源电路，电源电路设置于第一开关与控制器之间；
电源电路，用于将第一电源转换成与控制器适配的第四电源，并将第四电源传输至控制器。
在一实施例中，多联机空调控制电路还包括负载供电电路，负载供电电路与电源电路连接；
电源电路，还用于将第一电源转换成与室外机的负载适配的第五电源，并将第五电源传输至负载供电电路；
负载供电电路，用于根据第五电源驱动负载。
在一实施例中，控制器，还用于在未接收到工作信号时，控制第一开关从闭合状态切换为断开状态。
在一实施例中，第一开关为继电器，继电器的控制端与控制器的控制端连接，继电器的第一触点与电源输入端连接，继电器的第二触点与控制器的供电端连接。
为实现上述目的，本申请还提出一种电控装置，电控装置包括如上述的多联机空调控制电路。
为实现上述目的，本申请还提出一种空调器，空调器包括如上述的电控装置；或者，包括如上述的多联机空调控制电路。
本申请中，通过在多联机空调的室外机上设置电源输入端、唤醒电路20、控制器和第一开关构成多联机空调控制电路。其中，控制器分别与电源输入端和唤醒电路连接，第一开关设置于控制器和电源输入端之间；电源输入端，用于接入第一电源；唤醒电路，用于在接收到多联机空调的室内机发送的工作信号时，向控制器提供第二电源；控制器，用于在接收到工作信号和第二电源时，控制第一开关从断开状态切换为闭合状态，以接收第一电源。本申请通过在室外机内的控制器与作为工作电源的第一电源之间设置开关，控制器根据各室内机发送的工作信号判断室外机所需要的运行状态，以控制控制器自身的上电或掉电，从而使室外机在低功耗模式与工作模式之间进行切换，实现了在多联机空调中为室外机配置低功耗模式，降低了室外机的功耗。
为了更清楚地说明本申请实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本申请的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图示出的结构获得其他的附图。
图1为本申请多联机空调控制电路第一实施例的结构示意图；
图2本申请多联机空调一实施例的结构示意图；
图3为本申请多联机空调控制电路第二实施例的结构示意图；
图4为本申请唤醒电路一实施例的电路原理图。
附图标号说明：
| 标号 | 名称 | 标号 | 名称 |
| 10 | 电源输入端 | 80 | 电源电路 |
| 20 | 唤醒电路 | 90 | 负载供电电路 |
| 201 | 放电电路 | R1~R3 | 第一至第三电阻 |
| 202 | 直流电源 | C1~C3 | 第一至第三电容 |
| 203 | 控制信号 | L1 | 第一电感 |
| 30 | 控制器 | B | 整流器 |
| 40 | 第一开关 | T | 稳压二极管 |
| 50 | 室外机 | K | 电子开关 |
| 60 | 室内机 | IC | 电源芯片 |
| 70 | 采样电路 |
本申请目的的实现、功能特点及优点将结合实施例，参照附图做进一步说明。
应当理解，此处所描述的具体实施例仅仅用以解释本申请，并不用于限定本申请。
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本申请的一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本申请保护的范围。
需要说明，本申请实施例中所有方向性指示（诸如上、下、左、右、前、后……）仅用于解释在某一特定姿态（如附图所示）下各部件之间的相对位置关系、运动情况等，如果该特定姿态发生改变时，则该方向性指示也相应地随之改变。
另外，在本申请中涉及“第一”、“第二”等的描述仅用于描述目的，而不能理解为指示或暗示其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。另外，各个实施例之间的技术方案可以相互结合，但是必须是以本领域普通技术人员能够实现为基础，当技术方案的结合出现相互矛盾或无法实现时应当认为这种技术方案的结合不存在，也不在本申请要求的保护范围之内。
参照图1，图1为本申请多联机空调控制电路第一实施例的结构示意图，本申请提出多联机空调控制电路的第一实施例。
在第一实施例中，多联机空调控制电路，应用于多联机空调的室外机50，多联机空调控制电路包括：电源输入端10、唤醒电路20、控制器30和第一开关40；控制器30分别与电源输入端10和唤醒电路20连接，第一开关40设置于控制器30和电源输入端10之间。
电源输入端10，用于接入第一电源。
唤醒电路20，用于在接收到多联机空调的室内机60发送的工作信号时，向控制器30提供第二电源。
控制器30，用于在接收到工作信号和第二电源时，控制第一开关40从断开状态切换为闭合状态，以接收第一电源。
参照图2，图2本申请多联机空调一实施例的结构示意图。多联机空调是指一个室外机50拖动多个室内机60的空调系统，室外机50输出的冷媒通过分流元件分别输送至各室内机60，以便于各室内机60完成热交换操作。通常，室外机50及各室内机60均配置有独立电源，为室外机50或各室内机60内部的驱动器及负载提供电源。各室内机60在处于非工作模式时，断开相应的独立电源，使内部各负载处于掉电状态，整机处于低功耗模式，以节约能源。
应理解的是，本实施方式中的多联机空调控制电路设置于室外机50内部，控制器30是指室外机50内部的控制器，控制器30可结合相应的驱动电路可以形成驱动负载的驱动器；其中，负载可以包括如压缩机、风扇、电子膨胀阀等器件。各类负载所对应的驱动电路已有成熟的电路结构，本实施方式在此不再赘述。
需要说明的是，第一电源是指室外机50所配置的独立电源，其可以为由电源适配器等装置提供的电源或者为市电，室外机50在处于工作模式时，内部各单元由该第一电源供电。本实施方式为在室外机50上配置低功耗模式，在控制器30和电源输入端10之间设置第一开关40，室外机50处于工作模式时，第一开关40处于闭合状态，控制器30能够接收到第一电源，在室外机50在处于低功耗模式时，第一开关40处于断开状态，控制器30无法接收第一电源，也就无法执行相应的控制逻辑，室外机50处于低功耗模式。其中，第一开关40的状态可由控制器30进行控制，当然，第一开关40还可以设置交互组件，以便于用户对室外机50的工作状态进行切换。
本实施方式主要以室外机50自动控制为例进行说明，在具体实现时，控制器30需要根据室内机60的工作状态控制第一开关40的状态。为保证室内机60的正常运行，在室内机60存在制冷量或制热量需求时，室外机50需要提供相应的制冷量或制热量。因此，室外机50通常仅在室内机60均不存在制冷量或制热量需求时，才能够进入低功耗模式。
在本实施方式中，工作信号可以用于判断室内机60是否处于工作模式，是否存在制冷量或制热量需求，即判断室外机50是否需要进入工作模式。若室外机50在接收到该工作信号，则判定需要进入工作模式，以为室内机60提供相应的制冷量或制热量；若未接收到，则判定需要进入工作模式。其中，室外机50进入工作模式是指，压缩机等设备上电运行，向室内机60传输冷媒，以执行制冷或制热等操作。
在具体实现时，各室内机60能够分别与室外机50进行通信，各室内机60在进入工作模式时，向室外机50发送工作信号，唤醒电路20在接收到任一室内机60发送的工作信号，向控制器30提供第二电源。
需要说明的是，在室外机50处于低功耗模式时，控制器30无法接收第一电源，为使控制器30正常工作，唤醒电路20向控制器30提供第二电源以作为唤醒电源，使控制器30上电。在具体实现时，唤醒电路20可以设置有内置电源，在接收到工作信号时，将该内置电源转换成第二电源进行输出；或者，唤醒电路20还可以接入外部电源，在接收到工作信号时，将该外部电源转换成第二电源进行输出。
此外，为便于确定室内机60的运行状态，控制器30同样需要接受该工作信号。若室外机处于低功耗模式，第二电源作为工作电源使控制器30能够正常运行，此时若控制器30接收到工作信号，则控制第一开关40从断开状态切换为闭合状态，以接收第一电源，恢复正常供电，进而使室外机50从低功耗模式中唤醒，进入工作模式。
在本实施方式中，控制器30，还用于在未接收到工作信号时，控制第一开关40从闭合状态切换为断开状态。
需要说明的是，室内机60在处于工作模式时，会持续向室外机50发送工作信号，工作信号的有无可表征室内机60是否处于工作模式。例如，室内机60内的控制单元实时检测自身的工作状态，在自身的工作状态处于工作模式时，生成工作信号，并将其发送至室外机50。室外机50的信号接收单元接收到工作信号时，将其传输至唤醒电路20及控制器30。因此，在室外机50处于工作模式时，若控制器30没有接收到任何一室内机60发送的工作信号，则说明室内机60全部不处于工作模式，室外机50不需要提供相应的制冷量或制热量，此时，控制器30可控制第一开关从闭合状态切换为断开状态，从而使室外机50进入低功耗模式。
在具体实现时，第一开关40可以为继电器，继电器的控制端与控制器30的控制端连接，继电器的第二触点与电源输入端10连接，继电器的第一触点与控制器30的供电端连接。
可以理解的是，继电器的控制端可以为继电器线圈的连接端，继电器的第一触点和第二触点在继电器线圈通电时闭合，在继电器线圈不通电时断开。第一开关40为常开开关，控制器30的控制端被配置为可输出控制电源，在控制器30接收到工作信号和第二电源时，输出该控制电源使继电器线圈通电，从而导通电源输入端10与控制器30的供电端之间的回路，以接收第一电源。当然，第一开关40还可以采用其他类型的开关器件，本实施方式对此不加以限制。
在第一实施例中，通过在多联机空调的室外机50上设置电源输入端10、唤醒电路20、控制器30和第一开关40构成多联机空调控制电路。其中，电源输入端10接入第一电源；唤醒电路20在接收到多联机空调的室内机60发送的工作信号时，向控制器30提供第二电源；控制器30在接收到工作信号和第二电源时，控制第一开关40从断开状态切换为闭合状态，以接收第一电源。本实施方式通过在室外机50内的控制器30与作为工作电源的第一电源之间设置开关，控制器30根据各室内机60发送的工作信号判断室外机50所需要的运行状态，以控制控制器30自身的上电或掉电，从而使室外机50在低功耗模式与工作模式之间进行切换，实现了在多联机空调中为室外机50配置低功耗模式，降低了室外机50的功耗。
参照图3，图3为本申请多联机空调控制电路第二实施例的结构示意图。基于上述第一实施例。本申请提出多联机空调控制电路的第二实施例。
在第二实施例中，唤醒电路20包括相互连接的电源输入电路201和电源输出电路202，电源输入电路201与室内机60的供电电路连接。
供电电路，用于在处于供电状态时，提供第三电源，为室内机60供电。
电源输入电路201，用于检测到供电电路提供的第三电源时，将第三电源作为工作信号。
电源输出电路202，用于将第三电源转换成第二电源，并将第二电源传输至控制器30。
为便于对各室内机60的运行状态进行检测，从而便于控制室外机50的运行状态，在本实施方式中，将室内机60中作为供电电源的第三电源作为工作信号。其中，供电电路用于将各室内机60对应的独立电源转换为供电电源，以驱动各室内机60中的负载运行，该第三电源可以为该供电电源。
可以理解的是，若室内机60内的负载处于上电状态，则说明室内60处于工作模式，也即具有相应的制冷量或制热量需求。因此，可以通过判断室内机的供电电路是否提供电源以判断室内机60的运行状态。其中，供电电路已有成熟的电路结构，本实施方式对此不再赘述。
在具体实现时，各室内机60的供电电路还与室外机50内的电源输入电路201连接，供电电路在向室内机60内的负载供电时，还同时向电源输入电路201提供第三电源，供电电路在停止向室内机60内的负载供电时，也同时停止向电源输入电路201提供第三电源。
由于第三电源实际上为室内机60内负载的供电电源，其幅值通常较高，为避免控制器30损坏，还需要对其进行降压等处理；通常第三电源可以为12V或24V，第三电源可以为3V或5V。另外，第三电源通常为交流电，第二电源通常为直流电，故电源输出电路202还需要对第三电源进行整流处理。
在本实施方式中，第三电源还同时被转换成第二电源，以作为控制器30的唤醒电源。通过对室内机60的电源进行复用，从而提高了对室内机状态检测的准确性，也简化了唤醒电路20，更易于实现。
在本实施方式中，唤醒电路20还包括第二开关203，第二开关203设置于电源输出电路202与控制器30之间；控制器30，还用于在接收到第一电源时，控制第二开关203从闭合状态切换为断开状态。
可以理解的是，控制器30在接收到第一电源后，能够正常运行，此时可以不再需要唤醒电源，可通过切断电源输出电路202与控制器30之间回路，使控制器30不再接收第二电源，从而进一步节约能源。在具体实现时，第二开关203为常闭开关，具体可以为继电器。控制器30在接收到第一电源后向第二开关203的继电器线圈施加电流，从而使第二开关203从闭合状态切换为断开状态；在控制器30为接收到第一电源时，第二开关203的继电器线圈上的电流消失，第二开关203恢复为闭合状态。当然第二开关203也可以采用其他类型的开关，本实施方式对此不加以限制。
参照图4，图4为本申请唤醒电路一实施例的电路原理图。作为一种示例，本实施方式还提出了唤醒电路20的电路原理图。电源输入电路201包括第一电阻R1、第二电阻、第一电容C1、第二电容C2和整流器B。整流器B的第一输入端分别与第一电阻R1的第一端及第一电容C1的第一端连接，第一电容C1的第二端与整流器B的第二输入端连接，整流器B的第一输入端和第二输入端用于接入交流电源。整流器B的第一输出端分别与第二电阻R2的第一端及第二电容C2的第一端连接，第二电容C2的第二端与整流器B的第二输出端连接，整流器B的第二输出端接地，第二电阻R2的第二端与电源输出电路202连接。电源输入电路201用于接入交流电流，并进行整流，向电源输出电路202传输直流电源。
电源输出电路202包括电源芯片IC、第一电感L1、第三电容C 3、第三电阻R3和稳压二极管T。第二开关203包括电子开关K，其控制端与控制器30连接。电源芯片IC的输入端与第二电阻的第二端连接，电源芯片IC的输出端分别与第一电感L1的第一端及稳压二极管T的阴极连接，第一电感L1的第二端分别与第三电阻R3的第一端、第三电容C3的第一端及电子开关K的第一端连接，稳压二极管T的阳极、第三电阻R3的第二端及第三电容C3的第二端均接地。电源芯片IC用于对输入的直流电源进行电压转换，在通过第一电感、第三电容及第三电阻组成的滤波电路输出。当然，唤醒电路20为其他实现类似功能的电路，本实施方式对此不加以限制。
需要说明的是，电源芯片IC还可以与控制器30进行通信，控制器30在接收到第一电源后，向电源芯片IC发送关闭信号，电源芯片IC接收到该关闭信号后，停止输出电源。此时，唤醒电路20中可以不设置第二开关203，也能够实现自动切断。
此外，为进一步避免控制器30损坏，多联机空调控制电路还包括采样电路70，采样电路70分别与供电电路和控制器30连接；采样电路70，用于获取第三电源对应的电压信号，并将电压信号作为工作信号传输至控制器30。
需要说明的是，由于第三电源的电压较高且为交流，直接将其输入至控制器30的端口时，容易导致控制器30损坏。故，采样电路70可先对第三电源进行采样，获得直流电源，再将直流电源进行降压等处理，或者电压较低的电压信号，输出至控制器30。在具体实现时，由于电源输入电路201对第三电源进行了整流处理，故采样电路70还可以从电源输入电路201的输出端获取电压信号。
可以理解的是，控制器30可根据该电压信号的电压值确定室内机60的工作状态，若该电压信号的电压值较低，则说明室内机60处于待机状态；反之，则说明内机60处于工作状态。
在本实施方式中，为便于对室外机50的供电进行管理。多联机空调控制电路还包括电源电路80，电源电路80设置于第一开关40与控制器30之间；电源电路80，用于将第一电源转换成与控制器30适配的第四电源，并将第四电源传输至控制器30。
可以理解的是，第一电源可以为由电源适配器等装置提供的电源或者为市电，其电压通常为120V或者240V，而控制器的所需的供电电压较低，因此需要对第一电源进行调整，在将其传输至控制器30。第四电源的具体电压根据控制器30的具体参数确定，若控制器30的额定电压为5V，则第四电源的电压值为5V；若控制器30的额定电压为8V，则第四电源的电压值为8V。电源电路80可以采用电源管理芯片组成，其具体的电路结构已有成熟的技术，本实施方式对此不在赘述。
此外，多联机空调控制电路还包括负载供电电路90，负载供电电路90与电源电路80连接；电源电路80，还用于将第一电源转换成与室外机50的负载适配的第五电源，并将第五电源传输至负载供电电路90；负载供电电路90，用于根据第五电源驱动负载。
可以理解的是，第一电源为室外机50的整机供电电源，在室外机50从低功耗模式中唤醒后，室内机50内部的各类负载均需要上电运行。因此，电源电路80除提供控制器30的供电外，还需要提高各类负载的供电。在具体实现时，第五电源可以包括多种不同电压的电源，其用于为负载供电，具体电压值根据负载的额定电压确定；例如，第五电源可以包括12V、24V等。负载供电电路90的电路结构也已有成熟的技术，本实施方式对此不在赘述
在第二实施例中，唤醒电路20包括与室内机60的供电电路连接的电源输入电路201和电源输出电路202。其中，电源输入电路201检测到供电电路提供的第三电源时，将第三电源作为工作信号。电源输出电路202将第三电源转换成第二电源，并将第二电源传输至控制器30。本实施方式对室内机60的供电电源进行复用，将供电电源作为工作信号，若电源输入电路201接收到供电电源，则说明室内机60处于工作模块，室外机50也需要进入工作模式；同时将第三电源进行转换，获得第二电源，并将其作为控制器30的驱动电源，使控制器30能够正常运行，从而使室外机50从低功耗模块中唤醒。
为实现上述目的，本申请还提出一种电控装置，电控装置包括如上述的多联机空调控制电路。该多联机空调控制电路的具体结构参照上述实施例，由于本电控装置可以采用上述所有实施例的技术方案，因此至少具有上述实施例的技术方案所带来的有益效果，在此不再一一赘述。
为实现上述目的，本申请还提出一种空调器，空调器包括如上述的电控装置；或者，包括如上述的多联机空调控制电路。该电控装置或多联机空调控制电路的具体结构参照上述实施例，由于本空调器可以采用上述所有实施例的技术方案，因此至少具有上述实施例的技术方案所带来的有益效果，在此不再一一赘述。
以上仅为本申请的优选实施例，并非因此限制本申请的专利范围，凡是利用本申请说明书及附图内容所作的等效结构或等效流程变换，或直接或间接运用在其他相关的技术领域，均同理包括在本申请的专利保护范围内。
Claims (10)
- 一种多联机空调控制电路，其中，应用于多联机空调的室外机，所述多联机空调控制电路包括：电源输入端、唤醒电路、控制器和第一开关；所述控制器分别与所述电源输入端和所述唤醒电路连接，所述第一开关设置于所述控制器和所述电源输入端之间；所述电源输入端，用于接入第一电源；所述唤醒电路，用于在接收到所述多联机空调的室内机发送的工作信号时，向所述控制器提供第二电源；以及，所述控制器，用于在接收到所述工作信号和所述第二电源时，控制所述第一开关从断开状态切换为闭合状态，以接收所述第一电源。
- 如权利要求1所述的多联机空调控制电路，其中，所述唤醒电路包括相互连接的电源输入电路和电源输出电路，所述电源输入电路与所述室内机的供电电路连接；所述供电电路，用于在处于供电状态时，提供第三电源，为所述室内机供电；所述电源输入电路，用于检测到所述供电电路提供的第三电源时，将所述第三电源作为工作信号；以及，所述电源输出电路，用于将所述第三电源转换成所述第二电源，并将所述第二电源传输至所述控制器。
- 如权利要求2所述的多联机空调控制电路，其中，所述唤醒电路还包括第二开关，所述第二开关设置于所述电源输出电路与所述控制器之间；以及，所述控制器，还用于在接收到所述第一电源时，控制所述第二开关从闭合状态切换为断开状态。
- 如权利要求2所述的多联机空调控制电路，其中，所述多联机空调控制电路还包括采样电路，所述采样电路分别与所述供电电路和所述控制器连接；以及，所述采样电路，用于获取所述第三电源对应的电压信号，并将所述电压信号作为工作信号传输至所述控制器。
- 如权利要求1-4中任一项所述的多联机空调控制电路，其中，所述多联机空调控制电路还包括电源电路，所述电源电路设置于所述第一开关与所述控制器之间；以及，所述电源电路，用于将所述第一电源转换成与所述控制器适配的第四电源，并将所述第四电源传输至所述控制器。
- 如权利要求5所述的多联机空调控制电路，其中，所述多联机空调控制电路还包括负载供电电路，所述负载供电电路与所述电源电路连接；所述电源电路，还用于将所述第一电源转换成与所述室外机的负载适配的第五电源，并将所述第五电源传输至所述负载供电电路；以及，所述负载供电电路，用于根据所述第五电源驱动所述负载。
- 如权利要求1-4中任一项所述的多联机空调控制电路，其中，所述控制器，还用于在未接收到所述工作信号时，控制所述第一开关从闭合状态切换为断开状态。
- 如权利要求1-4中任一项所述的多联机空调控制电路，其中，所述第一开关为继电器，所述继电器的控制端与所述控制器的控制端连接，所述继电器的第一触点与所述电源输入端连接，所述继电器的第二触点与所述控制器的供电端连接。
- 一种电控装置，其中，所述电控装置包括如权利要求1-8中任一项所述的多联机空调控制电路。
- 一种空调器，其中，所述空调器包括如权利要求9所述的电控装置；或者，包括如权利要求1-8中任一项所述的多联机空调控制电路。
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