WO2020181856A1 - 一种空调器 - Google Patents

一种空调器 Download PDF

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Publication number
WO2020181856A1
WO2020181856A1 PCT/CN2019/124895 CN2019124895W WO2020181856A1 WO 2020181856 A1 WO2020181856 A1 WO 2020181856A1 CN 2019124895 W CN2019124895 W CN 2019124895W WO 2020181856 A1 WO2020181856 A1 WO 2020181856A1
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WO
WIPO (PCT)
Prior art keywords
fan coil
air
main control
mode
control unit
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PCT/CN2019/124895
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English (en)
French (fr)
Inventor
张吉雪
任兆亭
吕金贵
刘坤
管培志
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青岛海信日立空调系统有限公司
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Application filed by 青岛海信日立空调系统有限公司 filed Critical 青岛海信日立空调系统有限公司
Publication of WO2020181856A1 publication Critical patent/WO2020181856A1/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
    • F24F11/00—Control or safety arrangements
    • F24F11/70—Control systems characterised by their outputs; Constructional details thereof
    • F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
    • F24F11/74—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
    • 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
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/22—Means for preventing condensation or evacuating condensate
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating

Definitions

  • the application belongs to the technical field of air conditioner control, and specifically relates to an air conditioner.
  • the fan coil is the end product of the air conditioning system. It has its own water pump and float switch.
  • the float switch is located in the water receiving pan of the fan coil.
  • the start of the water pump is controlled by the main control unit of the fan coil collecting the float switch signal. Since there is no communication between the fan coil and the wire controller, the fan coil cannot know the mode of the air conditioner selected by the wire controller, so that this control method, regardless of whether the air conditioner is in cooling or heating or air supply mode, the water pump is turned on They all use the float switch as a signal. If there is a certain amount of water in the water receiving tray but the float switch has not been allowed to float, the water receiving tray will accumulate after a long time. If the water pump is damaged or malfunctions, the water will be connected Water accumulated in the tray for a long time will overflow and cause the ceiling to soak, which reduces the user experience.
  • This application provides an air conditioner, which is used to solve the problem that the operation of the water pump in the existing fan coil unit uses a float switch as a feedback signal, which causes the water tray to easily accumulate water.
  • an air conditioner which is characterized by having different working modes, including:
  • the fan coil is used to adjust the indoor temperature, which includes fan motors and water pumps;
  • a communication line is provided between the wire controller and the fan coil
  • the wire controller is configured to output different signals to the main control unit of the fan coil unit through the communication line output in different working modes;
  • the main control unit of the fan coil unit is configured to control the fan motor and the water pump of the fan coil unit to be in different operating states according to different signals;
  • the working mode includes a combination of an air-conditioning mode and an outlet air volume
  • the air-conditioning mode includes a cooling mode, a heating mode, and an air supply mode
  • the air output includes a low air volume, a medium air volume, and a high air volume.
  • the wire controller is configured to output a voltage value corresponding to each working mode through the communication line, wherein each voltage value is different.
  • the voltage of each voltage value is between 0V and 5V.
  • the communication line is a voltage generating circuit
  • the input terminal of the voltage generating circuit is connected to the output terminal of the wire controller
  • the output terminal of the voltage generating circuit is connected to the fan coil
  • the input terminal of the main control unit is connected, wherein the voltage output by the voltage generating circuit corresponds to each working mode.
  • the voltage generating circuit includes a high-level conductive switching element, an optocoupler, and a charging and discharging circuit, and the high-level conductive switching element is connected in series with the wire controller.
  • the anode of the optocoupler is connected to the external DC power supply
  • the emitter of the optocoupler is connected to the pull-up resistor and the collector is connected to the input of the charge and discharge circuit
  • the output of the charge and discharge circuit It is connected with the input end of the main control unit of the fan coil.
  • the high-level conductive switching element is an NPN transistor.
  • the base of the NPN transistor is connected to the output terminal of the wire controller, the emitter is grounded, and the collector is connected to the light through a current limiting resistor.
  • the cathode of the coupler is connected.
  • a temperature-controlled shutdown function is also included: when the indoor temperature reaches a set temperature, the wire controller is configured to output another signal to the station through the communication line.
  • the main control unit of the fan coil is used to control the fan motor to run at a low air volume.
  • the air conditioner in order to avoid the situation that the water receiving pan overflows when the water pump fails and the user does not know it, the air conditioner further includes an alarm prompt function: when the water pump fails or is damaged, The main control unit of the fan coil unit outputs a control signal to an alarm circuit, and controls the alarm circuit to emit an alarm prompt sound.
  • the main control unit of the fan coil unit is configured to control the operation status of the fan motor and the water pump of the fan coil unit.
  • the step includes: when the wire controller outputs an air conditioning mode When the signal is in the cooling mode, the main control unit of the fan coil unit controls the water pump to turn on; when the remote controller outputs a signal that the air conditioning mode is heating mode, the main control unit of the fan coil unit controls the water pump to turn off; the online controller outputs the air conditioning mode When it is the signal of air supply mode, the main control unit of the fan coil unit controls the water pump to turn on intermittently.
  • the main control unit of the fan coil unit controls the water pump to turn on for several minutes at regular intervals.
  • the analog communication line is established between the online controller and the fan coil, and according to the working mode selected by the line controller, the line controller outputs the corresponding output through the simulated communication line
  • Different signals of different working modes are sent to the main control unit of the fan coil unit, and then the main control unit controls the operation status of the fan motor and the water pump of the fan coil unit, so that different operation modes correspond to different operation status of the fan, fan and water pump, and realize the line
  • the analog communication between the controller and the fan coil is simple and effective, and intelligently controls the running state of the water pump according to the working mode of the air conditioner, and discharges the water in the water receiving pan in time to avoid overflow of the water receiving pan and improve user experience.
  • Figure 1 is a flow chart of the control method of the indoor fan coil unit and the wire controller of this application;
  • Fig. 2 is a system schematic diagram for realizing the control method of the indoor fan coil and the wire controller of the present application;
  • Fig. 3 is a circuit diagram of the communication line in the control method of the indoor fan coil and the wire controller of this application;
  • FIG. 4 is a circuit diagram of the alarm circuit in the method for controlling the indoor fan coil unit and the wire controller of this application.
  • an embodiment of the present application provides an air conditioner, which has different working modes, including: wire controller;
  • the fan coil is used to adjust the indoor temperature, which includes fan motors and water pumps;
  • the wire controller is configured to output different signals to the main control unit of the fan coil unit through the communication line output in different working modes;
  • the main control unit of the fan coil unit is configured to control the fan motor and the water pump of the fan coil unit in different operating states according to different signals.
  • This embodiment relates to a method for controlling indoor fan coil and wire controller, as shown in Fig. 1, including the following steps: simulating the communication line between the wire controller and the fan coil; selecting the air conditioner through the wire controller Working mode; according to different working modes, the line controller outputs different signals to the main control unit of the fan coil unit through the simulated communication line; and according to different signals, the main control unit of the fan coil unit controls the fan motor and The operating state of the water pump; wherein the working mode includes a combination of an air conditioning mode and an air volume, the air conditioning mode includes a cooling mode, a heating mode, and an air supply mode, and the air volume includes a low air volume, a medium air volume, and a high air volume.
  • the specific embodiment of the air conditioner system is a frequency conversion floor heating air conditioning system.
  • the line controller communicates with the outdoor unit to control the start and stop of the outdoor unit and the cooling and hot water production, and the floor heating or fan coil is controlled by the floor heating valve or fan coil valve, so that the water medium flows through the outdoor unit to Floor heating middle coil or fan coil.
  • the fan coil unit needs to know the working mode of the air conditioner currently selected by the wire controller, as shown in Figure 2, one of the wire controllers
  • the output port VSP1 (for example, the speed control port used to adjust the speed of the motor in the fan coil) outputs, for example, an analog voltage signal of 0-5V to the main control unit of the fan coil through the simulated communication line.
  • the controller is equipped with a mode button and an air volume button, so the remote controller can use the mode button to select the air conditioning mode as cooling mode, heating mode or air supply mode, and use the air volume button to select the air volume as low air volume, medium air volume or high air volume ,
  • the mode selected by these remote controllers is also the mode that the fan coil unit needs to know.
  • the three air conditioning modes and three air volumes are combined to form the working mode of the air conditioner: low air cooling, mid air cooling, high air cooling, and control Hot low wind, heating stroke, high heating wind, low supply wind, medium supply wind and high supply wind, control the wire controller to output different voltage values corresponding to nine working modes through the simulated communication line.
  • the value is input to the main control unit of the fan coil unit. Since different voltage values correspond to different working modes, the main control unit can know the current working mode of the air conditioner by collecting the voltage value, so as to control the fan motor and water pump more intelligently. run.
  • FIG. 3 it shows an embodiment of a communication line.
  • VSP1 is connected to the pin of the single-chip microcomputer of the line controller, and VSP1-O is connected to the pin of the single-chip microcomputer of the main control unit of the fan coil unit.
  • the communication line is a voltage generating circuit, which includes a high-level conductive switching element, an optocoupler PC10, and a charging and discharging circuit.
  • the high-level conductive switching element of this embodiment is an NPN transistor and the charging and discharging circuit consists of a pull-down resistor R1 and
  • the electrolytic capacitor E79 is formed in parallel, the base of the NPN transistor Q is connected to pin VSP1, the emitter is grounded, the collector is connected to the cathode K of the optocoupler PC10 through the current limiting resistor R2, and the anode A is connected to the external DC power supply VCC05, optically coupled
  • the emitter E of the PC10 is connected to the pull-up resistor R3 and the collector C is connected to one end of the pull-down resistor R1.
  • the positive electrode of the electrolytic capacitor E79 is connected between the pull-down resistor R1 and VSP1-O.
  • the external DC power supply VCC05 (for example +V)
  • the first filter circuit is connected to the anode A of the photocoupler PC10, and the external DC power supply VCC15 (for example +15V) connected to the pull-up resistor R3 is connected to one end of the pull-up resistor R2 through the second filter circuit.
  • a filter circuit is a capacitor C1. One end of the capacitor C1 is connected between the external DC power supply VCC05 and the anode A of the photocoupler PC10, and the other end of the capacitor C1 is grounded.
  • the second filter circuit of this embodiment is a capacitor C2, and one end of the capacitor C2 is connected to an external DC Between the power supply VCC15 and one end of the pull-up resistor R3, the other end of the capacitor C2 is grounded.
  • the working principle of the voltage generating circuit of this embodiment is introduced as follows: when VSP1 is low, the NPN transistor Q1 is not conductive, and the optocoupler PC10 is not conductive at this time. When VSP1 is high, the NPN transistor Q1 is conductive, and the light The coupler PC01 is also turned on. At this time, the external DC power supply VCC15 charges the electrolytic capacitor E79 and outputs a voltage value on the VSP1-O pin. When the photocoupler PC01 is not conductive, the electrolytic capacitor E79 passes through the pull-down resistor R1.
  • the output voltage value of the pin VSP1-O can be changed by controlling the time of VSP1 output high and low level through the wire controller.
  • the control lead The range of the voltage value output by the pin VSP1-O is 0-5V, and corresponding to the nine working modes selected by the wire controller, the voltage output by the VSP1-O is different.
  • Fan Coil The main control unit collects the voltage signal of pin VSP1-O and controls the output of the fan motor and the water pump through the analog-to-digital converter integrated on the main control unit single-chip microcomputer corresponding to each working mode.
  • the wire controller has its own temperature sensor, which can collect the actual indoor temperature.
  • the actual temperature is equal to the set temperature, there is no need for cooling or heating.
  • the fan motor is controlled to always operate at a low air volume to maintain the current The temperature is enough (this situation is called temperature control shutdown), which helps to improve the user experience, because after reaching the temperature set by the user, it still maintains high air volume or stroke volume operation, which will be too cold for the user Or overheating.
  • the wire controller when the actual temperature is equal to the set temperature, the wire controller outputs the voltage corresponding to the temperature control shutdown through the simulated communication line. This voltage value is different from the voltage value corresponding to the nine working modes.
  • the main control unit detects the voltage that needs temperature control to stop, it controls the fan motor to output low wind.
  • the air conditioner will only produce condensate in the cooling state, so the water pump is always turned on when the air conditioner is cooling, and no condensate will be generated in the heating state. It is not desirable to turn on the water pump on the basis of reducing user noise.
  • the main control unit of the fan coil unit controls the water pump to turn on intermittently, such as every certain time (such as one hour) for several minutes (such as three minutes).
  • the existing wiring port is used to realize the existing wiring between the line controller and the fan coil to establish a communication relationship between the two without increasing the hardware cost.
  • an alarm circuit is added to the output pin VOUT of the main control unit of the fan coil.
  • VOUT is connected to the base of the NPN transistor Q2, the emitter is grounded, the collector is connected between the resistor R4 and the negative electrode of the alarm device such as buzzer BZ, and the output terminal of the external DC power supply VCC is connected to the resistor R4 and the positive electrode of the alarm device
  • the output terminal of the external DC power supply VCC is connected with a grounded electrolytic capacitor E5, which is used to filter the power supply VCC (for example, +5V).
  • the pin VOUT of the main control unit When the water pump fails or is damaged, the pin VOUT of the main control unit outputs high At this time, the NPN transistor Q2 is turned on, and the external DC power supply VCC supplies power to the buzzer BZ. At this time, the buzzer BZ sounds to remind the user that the water pump is malfunctioning or damaged, which is convenient for timely maintenance.
  • the control method of the indoor fan coil and the wire controller provided in this application simulates the communication line between the wire controller and the fan coil. According to the working mode selected by the wire controller, the wire controller outputs the corresponding output through the simulated communication line Different voltages of different working modes are sent to the main control unit of the fan coil unit, and then the main control unit controls the operation status of the fan motor and the water pump of the fan coil unit, so that different operation modes correspond to different operation status of the fan, fan and water pump.
  • the analog communication between the controller and the fan coil is simple and effective; according to the working mode of the air conditioner, the running state of the water pump is intelligently controlled, and the water in the receiving pan is discharged in time, avoiding the overflow of the receiving pan, and improving the user experience; increased temperature Control shutdown and alarm circuits to enhance user experience.

Abstract

一种空调器，具有不同工作模式，包括：线控器；风机盘管，用于调节室内温度，其包括风扇电机、水泵；线控器与风机盘管之间设有通讯线路；线控器在不同工作模式下通过通讯线路向风机盘管的主控单元输出不同信号；风机盘管的主控单元根据不同信号，控制风机盘管的风扇电机和水泵处于不同的运行状态；其中工作模式包括空调模式和出风风量的组合，空调模式包括制冷模式、制热模式和送风模式，出风风量包括低风量、中风量和高风量。

Description

一种空调器
本申请要求在2019年3月8日提交中国专利局、申请号201910176088.5、发明名称为“一种室内风机盘管与线控器的控制方法”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请属于空调器控制技术领域，具体涉及一种空调器。
背景技术
风机盘管是空调系统的末端产品，具有自带的水泵和浮子开关,浮子开关位于风机盘管的接水盘中，水泵的开启通过风机盘管的主控单元采集浮子开关的信号来控制，由于风机盘管与线控器之间无通讯，因此风机盘管不能获知线控器选择的空调器的模式，使得这种控制方式，不管空调器处于制冷制热或送风模式，水泵的打开都是以浮子开关浮起来为信号，如果接水盘中存在一定水量但是一直没有让浮子开关浮起来，这样长时间之后接水盘就会积水，假设此时水泵损坏或故障时，接水盘中长时间积水会溢出而导致浸泡天花板，降低用户使用体验。
发明内容
本申请提供一种空调器，用于解决现有风机盘管中水泵的运行以浮子开关为反馈信号而导致接水盘容易积水的问题，通过模拟线控器和风机盘管之间的通讯，实现根据空调器模式智能控制风机盘管中风扇电机和水泵的状态，简单有效且智能化高，及时排出接水盘中积水，提升用户体验。
为了解决上述技术问题，本申请提出如下技术方案予以解决：一种空调器，其特征在于，具有不同的工作模式，包括：
线控器；
风机盘管，用于调节室内温度，其包括风扇电机、水泵；
所述线控器与所述风机盘管之间设有通讯线路；
所述线控器被配置为在不同工作模式下通过所述通讯线路输出向所述风机盘管的主控单元输出不同信号；
所述风机盘管的主控单元被配置为根据不同信号，控制所述风机盘管的风扇电机和水泵的处于不同的运行状态；
其中所述工作模式包括空调模式和出风风量的组合，所述空调模式包括制冷模式、制热模式和送风模式，所述出风风量包括低风量、中风量和高风量。
在本申请某些实施例中，根据不同的工作模式，所述线控器被配置为通过所述通讯线路输出与各工作模式对应的电压值，其中各电压值均不相同。
在本申请某些实施例中，各电压值的电压处于0V至5V之间。
在本申请某些实施例中，所述通讯线路为电压生成电路，所述电压生成电路的输入端与所述线控器的输出端相连，电压生成电路的输出端与所述风机盘管的主控单元的输入端相连，其中所述电压生成电路输出的电压与各工作模式相对应。
在本申请某些实施例中，所述电压生成电路包括高电平导通的开关元件、光耦合器和充放电电路，所述高电平导通的开关元件串联在所述线控器的输出端和光耦合器的阴极之间，光耦合器的阳极与外部直流电源相连，光耦合器的发射极与上拉电阻相连且集电极与充放电电路的输入端相连，充放电电路的输出端与所述风机盘管的主控单元的输入端相连。
在本申请某些实施例中，所述高电平导通的开关元件为NPN三极管,NPN三极管的基极与线控器的输出端相连，发射极接地，且集电极通过限流电阻与光耦合器的阴极相连。
在本申请某些实施例中，为了提升室内舒适度，还包括温控停机功能：在室内温度达到设定温度时，所述线控器被配置为通过所述通讯线路输出另一信号 至所述风机盘管的主控单元，用于控制所述风扇电机以低风量运行。
在本申请某些实施例中，为了避免在水泵故障而用户不自知的情况下导致接水盘溢水的情况，所述空调器还包括报警提示功能：在所述水泵故障或损坏时，所述风机盘管的主控单元输出控制信号至报警电路，控制所述报警电路发出报警提示音。
在本申请某些实施例中，根据不同信号，所述风机盘管的主控单元被配置为控制风机盘管的风扇电机和水泵的运行状态的步骤包括：当所述线控器输出空调模式为制冷模式的信号时，风机盘管的主控单元控制水泵开启；当线控器输出空调模式为制热模式的信号时，风机盘管的主控单元控制水泵关闭；在线控器输出空调模式为送风模式的信号时，风机盘管的主控单元控制水泵间歇性开启。
在本申请某些实施例中，当所述线控器输出空调模式为送风模式的信号时，所述风机盘管的主控单元控制水泵每隔一定时间开启若干分钟。
与现有技术相比，本申请的优点和有益效果是：在线控器和风机盘管之间模拟建立通讯线路，根据线控器选择的工作模式，线控器通过所模拟的通讯线路输出对应不同工作模式的不同信号至风机盘管的主控单元，继而主控单元控制风机盘管的风扇电机和水泵的运行状态，使不同的工作模式对应不同的风扇风机和水泵的运行状态，实现线控器和风机盘管之间的模拟通讯，简单有效，且根据空调器的工作模式智能控制水泵的运行状态，及时排出接水盘中积水，避免接水盘溢水，提升用户体验。
附图说明
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，下面将对本申请实施例或现有技术描述中所需要使用的附图作一简要介绍，显而易见地，下 面描述的附图是本申请的一些实施例，对于本领域的普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他附图。
图1为本申请的室内风机盘管与线控器的控制方法的流程图；
图2为用于实现本申请的室内风机盘管与线控器的控制方法的系统原理图；
图3为本申请的室内风机盘管与线控器的控制方法中通讯线路的电路图；
图4为本申请的室内风机盘管与线控器的控制方法中报警电路的电路图。
具体实施方式
为使本申请实施例的目的、技术方案和优点更加清楚，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，所描述的实施例是本申请一部分实施例，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。
在现有技术中，风机盘管的主控单元与线控器之间是无任何通信的，风机盘管中水泵的控制通过主控单元采集浮子开关的状态来控制，会在冷凝水存在时而水泵不工作时造成接水盘中积水，久而久之，会造成接水盘溢水的情况。为了避免产生上述情况且实现线控器与风机盘管之间的通信，本申请实施例提供一种空调器，其具有不同的工作模式，包括：线控器；
风机盘管，用于调节室内温度，其包括风扇电机、水泵；
线控器与风机盘管之间设有通讯线路；
线控器被配置为在不同工作模式下通过通讯线路输出向所述风机盘管的主控单元输出不同信号；
风机盘管的主控单元被配置为根据不同信号，控制风机盘管的风扇电机和水泵的处于不同的运行状态。
本实施例涉及一种室内风机盘管与线控器的控制方法，如图1所示，包括 以下步骤：模拟线控器与风机盘管之间的通讯线路；通过线控器选择空调器的工作模式；根据不同的工作模式，线控器通过所模拟的通讯线路输出不同信号至风机盘管的主控单元；以及根据不同信号，风机盘管的主控单元控制风机盘管的风扇电机和水泵的运行状态；其中所述工作模式包括空调模式和出风风量的组合，所述空调模式包括制冷模式、制热模式和送风模式，且出风风量包括低风量、中风量和高风量。
具体地，在本实施例中，空调器系统的具体实施例为变频地暖空调系统。如图2所示，线控器与室外机通信，控制室外机的启停及制冷制热水，且通过地暖阀或风机盘管阀控制地暖或风机盘管，使得水媒介通过室外机流通至地暖中盘管或风机盘管。且为了实现线控器和风机盘管之间通信，实现两者之间信息共享，风机盘管需要知道线控器当前选择的空调器的工作模式，如图2所示，线控器的一个输出端口VSP1(例如用于调试风机盘管中电机的转速的调速端口)通过所模拟的通讯线路输出例如0-5V的模拟电压信号至风机盘管的主控单元，具体地，由于线控器上设置有模式按键和风量按键，因此线控器可以通过模式按键选择空调模式为制冷模式、制热模式或送风模式，且通过风量按键选择出风风量为低风量、中风量或高风量，这些线控器所选择的模式也是风机盘管所需要知道的模式，三种空调模式和三种出风风量组合成种空调器的工作模式：制冷低风、制冷中风、制冷高风、制热低风、制热中风、制热高风、送风低风、送风中风和送风高风，控制线控器通过所模拟的通讯线路输出对应九种工作模式的不同电压值，该电压值输入至风机盘管的主控单元，由于不同电压值对应不同工作模式，这样，主控单元通过采集该电压值就能够知道当前空调器的工作模式，从而更智能地控制风扇电机和水泵的运行。
如图3所示，其示出了一种通讯线路的实施例，VSP1连接至线控器的单片机引脚，VSP1-O连接至风机盘管的主控单元单片机的引脚上，本实施例通讯线路为电压生成电路，其包括高电平导通的开关元件、光耦合器PC10和充放电电路，本实施例高电平导通的开关元件为NPN三极管且充放电电路由下拉电阻R1和电解电容E79并联形成，NPN三极管Q的基极与引脚VSP1相连，发射极接地，集电极通过限流电阻R2连接至光耦合器PC10的阴极K,阳极A连接至外部直流电源VCC05，光耦合器PC10的发射极E与上拉电阻R3相连且集电极C与下拉电阻R1的一端相连，电解电容E79的正极连接在下拉电阻R1和VSP1-O之间，外部直流电源VCC05(例如+V)通过第一滤波电路与光耦合器PC10的阳极A相连，与上拉电阻R3相连的外部直流电源VCC15(例如+15V)通过第二滤波电路与上拉电阻R2的一端相连，其中本实施例第一滤波电路为电容C1，电容C1一端连接在外部直流电源VCC05和光耦合器PC10的阳极A之间，电容C1另一端接地，本实施例第二滤波电路为电容C2，电容C2一端连接在外部直流电源VCC15和上拉电阻R3的一端之间，电容C2另一端接地。本实施例电压生成电路的工作原理介绍如下：在VSP1为低电平时，NPN三极管Q1不导通，此时光耦合器PC10也不导通，在VSP1为高电平时，NPN三极管Q1导通，光耦合器PC01也导通，此时外部直流电源VCC15为电解电容E79充电，并在VSP1-O引脚上输出一电压值，而当光电耦合器PC01不导通时，电解电容E79通过下拉电阻R1放电，并在引脚VSP1-O上输出另一电压值，通过线控器控制VSP1输出高低电平的时间可实现引脚VSP1-O的输出电压值的变化，在本实施例中，控制引脚VSP1-O输出的电压值的范围为0-5V，且对应线控器选择的九种工作模式，VSP1-O输出的电压各不相同。风机盘管 主控单元采集引脚VSP1-O的电压信号并通过集成在主控单元单片机上的模数转换器对应各个工作模式控制风扇电机和水泵的输出。
实际上，线控器自带温度传感器，可以采集室内实际温度，当实际温度等于设定温度时，就不需要再制冷或制热了，此时只要控制风扇电机始终保持低风量运转以维持当前温度即可(此种情况被称为温控停机)，这样，有助于提升用户体验，因为在达到用户设定的温度后仍保持高风量或中风量运转，对用户来说就会过冷或过热。
在本实施例中，线控器在实际温度等于设定温度时，通过所模拟的通讯线路输出对应温控停机的电压，此电压值不同于九种工作模式对应的电压值，当风机盘管的主控单元检测到需要温控停机的电压时控制风扇电机输出低风。
在实际运行中，空调器在制冷状态下才会产生冷凝水，因此在空调器制冷时一直打开水泵，在制热状态下不会产生冷凝水，从减小用户噪音的基础上不希望打开水泵，在送风状态下，会有极少的冷凝水存在，因此风机盘管的主控单元控制水泵间歇性开启，例如每隔一定时间(例如一个小时)开启若干分钟(例如三分钟)。
本实施例通过在模拟线控器和风机盘管之间的通讯，便于风机盘管知道线控器所选的工作模式，实现智能控制水泵，避免积水隐患；且VSP1原本作为风机盘管的电机的调速端口，在本实施例中，利用了这个已有接线端口实现线控器和风机盘管之间已有接线建立两者通讯关系，不增加硬件成本。
在水泵损坏或故障时，会无法排出冷凝水，为了提升风机盘管运行可靠性，在风机盘管的主控单元的输出引脚VOUT上增加了报警电路，具体地，如图4所示，VOUT与NPN三极管Q2的基极相连，发射极接地，集电极连接在电阻 R4和例如蜂鸣器BZ的报警装置的负极之间，外部直流电源VCC的输出端连接在电阻R4和报警装置的正极之间，且在外部直流电源VCC的输出端连接有接地的电解电容E5，用于对电源VCC(例如为+5V)滤波，在水泵出现故障或损坏时，主控单元的引脚VOUT输出高电平，此时NPN三极管Q2导通，外部直流电源VCC为蜂鸣器BZ供电，此时蜂鸣器BZ发出响声，提示用户水泵出现故障或损坏，便于及时维修。
本申请提供的室内风机盘管与线控器的控制方法，模拟线控器和风机盘管之间的通讯线路，根据线控器选择的工作模式，线控器通过所模拟的通讯线路输出对应不同工作模式的不同电压至风机盘管的主控单元，继而主控单元控制风机盘管的风扇电机和水泵的运行状态，使不同的工作模式对应不同的风扇风机和水泵的运行状态，实现线控器和风机盘管之间的模拟通讯，简单有效；根据空调器的工作模式智能控制水泵的运行状态，及时排出接水盘中积水，避免接水盘溢水，提升用户体验；增加的温控停机及报警电路，提升用户体验。
最后应说明的是：以上实施例仅用以说明本申请的技术方案，而非对其限制；尽管参照前述实施例对本申请进行了详细的说明，本领域的普通技术人员应当理解：其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分技术特征进行等同替换；而这些修改或者替换，并不使相应技术方案的本质脱离本申请各实施例技术方案的精神和范围。

Claims (10)

  1. 一种空调器，其特征在于，具有不同的工作模式，包括：
    线控器；
    风机盘管，用于调节室内温度，其包括风扇电机、水泵；
    所述线控器与所述风机盘管之间设有通讯线路；
    所述线控器被配置为在不同工作模式下通过所述通讯线路输出向所述风机盘管的主控单元输出不同信号；
    所述风机盘管的主控单元被配置为根据不同信号，控制所述风机盘管的风扇电机和水泵的处于不同的运行状态；
    其中所述工作模式包括空调模式和出风风量的组合，所述空调模式包括制冷模式、制热模式和送风模式，所述出风风量包括低风量、中风量和高风量。
  2. 根据权利要求1所述的一种空调器，其特征在于，根据不同的工作模式，所述线控器被配置为通过所述通讯线路输出与各工作模式对应的电压值，其中各电压值均不相同。
  3. 根据权利要求2所述的一种空调器，其特征在于，各电压值的电压处于0V至5V之间。
  4. 根据权利要求1-3中任一项所述的一种空调器，其特征在于，所述通讯线路为电压生成电路，所述电压生成电路的输入端与所述线控器的输出端相连，电压生成电路的输出端与所述风机盘管的主控单元的输入端相连，其中所述电压生成电路输出的电压与各工作模式相对应。
  5. 根据权利要求4所述的一种空调器，其特征在于，所述电压生成电路包括高电平导通的开关元件、光耦合器和充放电电路，所述高电平导通的开关元件串联在所述线控器的输出端和光耦合器的阴极之间，光耦合器的阳极与外部直流电源相连，光耦合器的发射极与上拉电阻相连且集电极与充放电电路的输入端相连，充放电电路的输出端与所述风机盘管的主控单元的输入端相连。
  6. 根据权利要求5所述的一种空调器，其特征在于，所述高电平导通的开关 元件为NPN三极管,NPN三极管的基极与所述线控器的输出端相连，发射极接地，且集电极通过限流电阻与光耦合器的阴极相连。
  7. 根据权利要求1所述的一种空调器，其特征在于，还包括温控停机功能：在室内温度达到设定温度时，所述线控器被配置为通过所述通讯线路输出另一信号至所述风机盘管的主控单元，用于控制所述风扇电机以低风量运行。
  8. 根据权利要求1所述的一种空调器，其特征在于，还包括报警提示功能：在所述水泵故障或损坏时，所述风机盘管的主控单元输出控制信号至报警电路，控制所述报警电路发出报警提示音。
  9. 根据权利要求1所述的室内风机盘管与线控器的控制方法，其特征在于，根据不同信号，所述风机盘管的主控单元被配置为控制风机盘管的风扇电机和水泵的运行状态的步骤包括：当所述线控器输出空调模式为制冷模式的信号时，风机盘管的主控单元控制水泵开启；当线控器输出空调模式为制热模式的信号时，风机盘管的主控单元控制水泵关闭；在线控器输出空调模式为送风模式的信号时，风机盘管的主控单元控制水泵间歇性开启。
  10. 根据权利要求9所述的一种空调器，其特征在于，当所述线控器输出空调模式为送风模式的信号时，所述风机盘管的主控单元控制水泵每隔一定时间开启若干分钟。
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