WO2017088305A1 - Dispositif de commande de climatiseur à onduleur basé sur un thermostat, terminal, système et procédé - Google Patents

Dispositif de commande de climatiseur à onduleur basé sur un thermostat, terminal, système et procédé Download PDF

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Publication number
WO2017088305A1
WO2017088305A1 PCT/CN2016/072334 CN2016072334W WO2017088305A1 WO 2017088305 A1 WO2017088305 A1 WO 2017088305A1 CN 2016072334 W CN2016072334 W CN 2016072334W WO 2017088305 A1 WO2017088305 A1 WO 2017088305A1
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WO
WIPO (PCT)
Prior art keywords
air conditioner
inverter air
thermostat
temperature
indoor
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Application number
PCT/CN2016/072334
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English (en)
Chinese (zh)
Inventor
桂大发
Original Assignee
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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Application filed by 广东美的制冷设备有限公司, 美的集团股份有限公司 filed Critical 广东美的制冷设备有限公司
Publication of WO2017088305A1 publication Critical patent/WO2017088305A1/fr

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Classifications

    • 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 invention relates to the technical field of air conditioners, in particular to a frequency converter based inverter air conditioner control device, terminal, system and method.
  • the thermostat is a controller for air conditioning units commonly used in North America and Latin America. It uses a safe voltage to supply power and control the load. The user can set the control temperature, operating mode, running wind speed, etc. of the thermostat. Inside the thermostat, there is a sensor for detecting the temperature in the room, which can detect the indoor ambient temperature. The thermostat can control the operation of the air conditioner according to the set temperature, mode, wind speed and indoor ambient temperature. As shown in Fig. 1, the control signal outputted by the thermostat includes at least one internal fan control signal G, one way compressor control signal Y, or multiple internal fan and compressor control signals, and may also have 1 or Multi-way four-way valve B, electric heating control signal W, etc.
  • the above control signals are all on-off control signals, which can control the load of the air conditioner to be turned on or off.
  • the thermostat realizes the operation function of controlling the air conditioner in different modes by outputting the corresponding load switch signal.
  • the refrigeration function is realized by the signals of the output compressor opening, the inner fan opening, and the four-way valve closing, etc.
  • the heating function is realized by the signals of the output compressor opening, the internal fan opening, and the four-way valve opening.
  • the control scheme of the thermostat is the control of the fixed frequency machine, for example, including:
  • the 24V control fixed frequency external machine can receive external 24V control signals (compressor, four-way valve, etc.) and start the corresponding load operation.
  • the 24V control fixed frequency internal machine can receive the external 24V control signal (internal fan) and start the corresponding load operation.
  • the above control scheme can only control the fixed frequency machine and cannot control the frequency conversion machine. Because the control signal of the frequency conversion type is not the above simple load switching signal, the frequency and various protection signal complexity are involved, and the control signal is through the communication protocol. The way to control the work of the above load. Therefore, the existing control scheme limits the application of the air conditioner, resulting in a poor degree of intelligence in the air conditioning control process.
  • the main object of the present invention is to provide a frequency converter-based inverter air conditioner control device, terminal, system and method, aiming at solving the current scheme of controlling an air conditioner through a thermostat, which can only control a fixed frequency machine, and the existing control scheme
  • the air conditioning application is limited, resulting in a problem of poor intelligence of the air conditioning control process.
  • the present invention provides a thermostat-based inverter air conditioner control device, including: a controller and an input interface and an internal communication interface connected to the controller, wherein
  • the input interface is connected to the thermostat, and receives a control signal sent by the thermostat;
  • the internal communication interface is connected to the inverter air conditioner indoor unit, and the inverter air conditioner indoor unit is connected to the inverter air conditioner outdoor unit, and the controller passes through the controller
  • the machine communication interface receives the indoor temperature signal collected by the inverter air conditioner indoor unit; the controller sets the compressor operating frequency for the inverter air conditioner outdoor unit according to the shutdown control signal of the thermostat and the indoor temperature signal collected by the inverter air conditioner indoor unit Adjusted target reference temperature.
  • the thermostat-based inverter air conditioner control device further includes: a detection interface connected to the controller, the detection interface is connected to the temperature detector, and receives the indoor temperature signal collected by the temperature detector.
  • the thermostat-based inverter air conditioner control device further comprises: a temperature detector connected to the detection interface.
  • the internal communication interface is a communication bus interface, and the communication bus interface is connected to a plurality of inverter air conditioner indoor units, and the plurality of inverter air conditioner indoor units are connected to a plurality of inverter air conditioner outdoor units.
  • the temperature detector is disposed on the thermostat.
  • the present invention provides a terminal including the thermostat-based inverter air conditioner control device as described above, and the thermostat-based inverter air conditioner control device is mounted on the terminal
  • the terminal is an inverter air conditioner indoor unit or an inverter air conditioner outdoor unit.
  • the present invention provides a thermostat-based inverter air conditioner control system
  • the thermostat-based inverter air conditioner control system includes the control device as described above, and the thermostat-based frequency conversion
  • the air conditioning control system further includes: a thermostat connected to the input interface, an inverter air conditioner indoor unit connected to the internal communication interface, and an inverter air conditioner outdoor unit connected to the inverter air conditioner indoor unit;
  • the controller When receiving the shutdown control signal sent by the thermostat, the controller acquires the collected indoor temperature signal through the internal communication interface;
  • the controller sets the temperature corresponding to the indoor temperature signal to a target reference temperature of the compressor frequency operation control of the next inverter air conditioner outdoor unit.
  • the thermostat-based inverter air conditioner control system further includes: a detection interface connected to the controller, the detection interface is disposed on the thermostat-based inverter air conditioner control device, the detection interface and the temperature detector Connected to receive the indoor temperature signal collected by the temperature detector.
  • the thermostat-based inverter air conditioner control system further comprises: a temperature detector connected to the detection interface.
  • control system comprises a plurality of inverter air conditioner indoor units and a corresponding plurality of inverter air conditioner outdoor units, wherein the internal machine communication interface is a communication bus interface, and the communication bus interface is connected with a plurality of inverter air conditioner indoor units.
  • the plurality of inverter air conditioner indoor units are connected to a plurality of inverter air conditioner outdoor units.
  • the present invention provides a temperature control system-based inverter air conditioner control system control method, and the thermostat-based inverter air conditioner control system is the control system as described above, including the steps of:
  • the controller receives the control signal of the outdoor air conditioner of the inverter air conditioner sent by the thermostat during the operation of the air conditioner;
  • the controller sends a shutdown control signal to the inverter air conditioner indoor unit to send a shutdown control signal to the inverter air conditioner outdoor unit to shut down the inverter air conditioner outdoor unit through the inverter air conditioner indoor unit, and simultaneously acquire an indoor temperature signal, and the The temperature corresponding to the indoor temperature signal is recorded as the target reference temperature of the compressor frequency operation control after the inverter outdoor unit is turned on again.
  • the method further includes:
  • the controller After receiving the power-on control signal sent by the thermostat, the controller acquires a real-time indoor temperature signal collected by the inverter air conditioner indoor unit;
  • the controller controls a compressor down-conversion operation of the inverter air conditioner outdoor unit when a temperature corresponding to the real-time indoor temperature signal is close to the target reference temperature.
  • the method further includes:
  • the controller receives the shutdown control signal sent by the thermostat when the inverter outdoor unit is in the control operation of the target reference temperature, and acquires the current indoor temperature signal collected by the inverter air conditioner indoor unit;
  • the controller updates the target reference temperature to a temperature corresponding to the current indoor temperature signal.
  • the invention integrates the air conditioner control system of the inverter air conditioner outdoor unit by connecting the frequency converter through the control device through the control device, adapts the inverter air conditioner indoor unit through the control device, and then controls the inverter air conditioner outdoor unit through the inverter air conditioner indoor unit, based on the control
  • the indoor temperature obtained by the device is controlled by the inverter air conditioner indoor unit to control the inverter air conditioner outdoor unit to operate at the obtained indoor temperature, so that the temperature controller controls the air conditioner to increase the control of the inverter air conditioner indoor unit, and then through the inverter air conditioner indoor Machine controlled inverter air conditioner outdoor unit frequency conversion operation.
  • a thermostat is provided to connect the inverter air conditioner indoor unit to control the inverter air conditioner outdoor unit through the control device, thereby improving the intelligence degree of the thermostat controlling the air conditioner and improving the comfort of the air conditioner.
  • FIG. 1 is a schematic diagram of an existing architecture based on a thermostat controlling an air conditioner
  • FIG. 2 is a schematic structural diagram of an inverter air conditioner control device based on a thermostat according to a first embodiment of the present invention
  • FIG. 3 is a schematic structural diagram of a frequency converter-based inverter air conditioner control device according to a second embodiment of the present invention.
  • FIG. 4 is a schematic structural diagram of a frequency converter-based inverter air conditioner control device according to a third embodiment of the present invention.
  • FIG. 5 is a schematic structural diagram of an inverter air conditioner control apparatus based on a thermostat according to a fourth embodiment of the present invention.
  • FIG. 6 is a schematic structural diagram of an inverter air conditioner control system based on a thermostat according to a first embodiment of the present invention
  • FIG. 7 is a schematic structural diagram of a frequency converter-based inverter air conditioner control system according to a second embodiment of the present invention.
  • FIG. 8 is a schematic structural diagram of a frequency converter-based inverter air conditioner control system according to a third embodiment of the present invention.
  • FIG. 9 is a schematic structural diagram of a frequency converter-based inverter air conditioner control system according to a fourth embodiment of the present invention.
  • FIG. 10 is a schematic flow chart of a first embodiment of a method for controlling an inverter air conditioner based on a thermostat according to the present invention
  • FIG. 11 is a schematic flow chart of a second embodiment of a method for controlling an inverter air conditioner based on a thermostat according to the present invention
  • FIG. 12 is a schematic flow chart of a third embodiment of a method for controlling an inverter air conditioner based on a thermostat according to the present invention.
  • FIG. 13 is a schematic flow chart of incoming indoor temperature according to an embodiment of the present invention.
  • the main solution of the embodiment of the present invention is: the controller receives the inverter air conditioner outdoor machine control signal sent by the thermostat during the operation of the air conditioner; the controller sends a shutdown control signal to the inverter air conditioner indoor unit, The inverter air conditioner indoor unit sends a shutdown control signal to the inverter air conditioner outdoor unit to turn off the inverter air conditioner outdoor unit, and simultaneously obtains the indoor temperature signal, and records the temperature corresponding to the indoor temperature signal as the compression after the inverter air conditioner outdoor unit is turned on again.
  • the target reference temperature for machine frequency operation control is: the controller receives the inverter air conditioner outdoor machine control signal sent by the thermostat during the operation of the air conditioner; the controller sends a shutdown control signal to the inverter air conditioner indoor unit, The inverter air conditioner indoor unit sends a shutdown control signal to the inverter air conditioner outdoor unit to turn off the inverter air conditioner outdoor unit, and simultaneously obtains the indoor temperature signal, and records the temperature corresponding to the indoor temperature signal as the compression after the inverter air conditioner
  • the thermostat is connected to the inverter air conditioner indoor unit to control the air conditioner control system of the inverter air conditioner outdoor unit, and the inverter air conditioner indoor unit is adapted by the control device, and then the inverter air conditioner outdoor unit is controlled by the inverter air conditioner indoor unit, and is obtained based on the control device.
  • the indoor temperature is controlled by the inverter air conditioner indoor unit to control the inverter air conditioner outdoor unit to operate at the obtained indoor temperature, so that the temperature controller controls the air conditioner to increase the control of the inverter air conditioner indoor unit, and then the inverter is controlled by the inverter air conditioner indoor unit.
  • Air conditioner outdoor unit frequency conversion operation A thermostat is provided to connect the inverter air conditioner indoor unit to control the inverter air conditioner outdoor unit through the control device, thereby improving the intelligence degree of the thermostat controlling the air conditioner and improving the comfort of the air conditioner.
  • the present invention provides an inverter air conditioner control device based on a thermostat.
  • the thermostat-based inverter air conditioner control device 10 includes a controller 11 and an input interface 12 and an internal communication interface 13 connected to the controller 11, wherein
  • the input interface 12 is connected to the thermostat, and receives a control signal sent by the thermostat;
  • the internal communication interface 13 is connected to the inverter air conditioner indoor unit, and the inverter air conditioner indoor unit is connected to the inverter air conditioner outdoor unit, and the controller 11 receiving the indoor temperature signal collected by the inverter air conditioner indoor unit through the internal communication interface 13;
  • the controller 11 is set to be used for the inverter air conditioner outdoor unit according to the shutdown control signal of the thermostat and the indoor temperature signal collected by the inverter air conditioner indoor unit The target operating temperature of the compressor operating frequency is adjusted.
  • the controller 11 is a control chip and has certain storage and calculation (data processing) capabilities.
  • the input interface 12 may be a wired connection interface or a wireless connection interface, including but not limited to Bluetooth, WiFi, infrared or NFC, and the like.
  • the controller 11 receives the power on/off control signal of the inverter air conditioner outdoor unit sent by the thermostat through the input interface 12.
  • the controller 11 is connected to the inverter air conditioner indoor unit through the internal communication interface 13, and controls the inverter inverter outdoor frequency conversion operation based on the inverter air conditioner indoor unit.
  • the connection manner of the inverter air conditioner indoor unit and the internal communication interface 13 includes, but is not limited to, a wired connection and a wireless connection.
  • the controller 11 receives the control signal sent by the thermostat, and after receiving the control signal sent by the thermostat, the controller 11 sends the control signal to the inverter air conditioner indoor unit through the internal communication interface 13, and the inverter air conditioner indoor unit
  • the control signal is sent to the inverter air conditioner outdoor unit to control the operation of the inverter air conditioner outdoor unit.
  • the controller 11 controls the inverter air conditioner outdoor unit through the inverter air conditioner indoor unit, but is not limited to: controlling the compressor of the inverter air conditioner outdoor unit, the outdoor fan, and the four-way valve,
  • the switch of the four-way valve is the choice of cooling/heating mode.
  • the controller 11 receives the power-on control signal of the inverter air conditioner outdoor unit sent by the thermostat through the input interface 12, and then passes through the internal communication interface 13
  • the power-on control signal is sent to the inverter air conditioner indoor unit to send the power-on control signal to the inverter air conditioner outdoor unit to open the inverter air conditioner outdoor unit through the inverter air conditioner indoor unit.
  • the indoor temperature of the indoor environment in which the air conditioner indoor unit collects the air conditioner is controlled by the internal communication interface 12.
  • the control rule that the controller 11 controls the opening and running of the inverter air conditioner outdoor unit for the first time is: after receiving the first power-on control signal sent by the thermostat, the controller 11 controls the compression of the inverter air conditioner outdoor unit by a preset high frequency.
  • the machine is running, the preset frequency is generally close to the highest frequency that the compressor can run (default frequency or subsequent set frequency).
  • the controller 11 sends the shutdown control signal through the internal communication interface 13 after receiving the inverter air conditioner outdoor machine control signal transmitted through the input interface 12.
  • the shutdown control signal is sent to the inverter air conditioner outdoor unit connected to the inverter air conditioner indoor unit to control the inverter air conditioner outdoor unit through the inverter air conditioner indoor unit.
  • the current indoor temperature signal collected by the inverter air conditioner indoor unit is obtained through the internal communication interface 13, and the temperature corresponding to the obtained current indoor temperature signal is set as the target reference temperature of the compressor operating frequency adjustment of the inverter air conditioner outdoor unit.
  • the operation of the inverter air conditioner outdoor unit compressor is controlled by the target reference temperature
  • the operation of the inverter air conditioner outdoor unit is controlled by the target reference temperature as the controller 11 It is not the first time to control the operation of the outdoor unit of the inverter air conditioner.
  • the determining process of the temperature corresponding to the real-time indoor temperature signal and the target reference temperature is: setting the temperature threshold in advance, for example, 24 degrees or 26 degrees.
  • the temperature corresponding to the real-time indoor temperature signal reaches a set temperature threshold, it is determined that the temperature corresponding to the real-time indoor temperature signal is close to the target reference temperature.
  • the inverter air conditioner outdoor unit is controlled to be down-converted.
  • the frequency conversion operation control rule is: when the cooling mode is received, the controller 11 controls the inverter air conditioner outdoor unit to start up and obtain the current indoor temperature when receiving the power-on control signal sent by the thermostat. According to the difference between the current indoor temperature and the target reference temperature, the initial frequency of a compressor operation is determined. If the difference is larger, the initial frequency is higher, and the outdoor cooling temperature is rapidly decreased by outputting a larger cooling capacity; when the indoor temperature and the target reference temperature are When the difference is reduced to close, the compressor is controlled to run down.
  • This proximity is defined as the difference T is a range value close to 0 such as 0 ⁇ T ⁇ 1 ° C (according to actual needs and / or compressor performance settings) And further within this range, the frequency of the compressor is controlled according to the proximity of the indoor temperature to the target reference temperature. If the difference is smaller, the operating frequency is lower until the lowest frequency at which the compressor can operate, thereby allowing the indoor temperature to The target reference temperature value is close to achieve a comfortable effect.
  • the target reference temperature value for example, the difference between the indoor temperature and the target reference temperature is 0.1 degree or 0.2 degree, etc.
  • the process of controlling the variable frequency operation of the inverter of the inverter air conditioner in the air conditioning heating mode or other modes is similar to the above process, and those skilled in the art can obtain heating according to the above-mentioned frequency conversion operation process.
  • the frequency conversion operation process in the mode will not be repeated here.
  • the controller 11 After receiving the power-on control signal input by the thermostat through the input interface 12, the controller 11 sends a power-on control signal to the inverter air conditioner indoor unit through the internal communication interface 13, and passes the inverter air conditioner.
  • the indoor unit controls the outdoor unit of the inverter air conditioner to be turned on, and controls the indoor unit of the inverter air conditioner to detect the indoor temperature or receives the indoor environment temperature collected by the indoor unit of the inverter air conditioner through the internal communication interface 13 in real time.
  • the control rule of the controller 11 for controlling the opening operation of the inverter air conditioner outdoor unit for the first time is: after receiving the first power-on control signal sent by the thermostat, the controller controls the compressor operation of the air-conditioner outdoor unit with a preset high frequency.
  • the preset frequency is generally close to the highest frequency at which the compressor can operate (default frequency or subsequent set frequency).
  • the current indoor ambient temperature collected by the indoor unit is set as the target reference temperature for the next inverter air conditioner outdoor unit compressor frequency adjustment. That is, the operation of the inverter air conditioner outdoor unit compressor is controlled at the target reference temperature when the inverter air conditioner outdoor unit is turned on next time.
  • the controller 11 receives the inverter air conditioner outdoor unit power-on control signal sent by the thermostat through the input interface 12; the controller 11 acquires the set target reference temperature after receiving the power-on control signal; The controller 11 generates a compressor control signal corresponding to the target reference temperature (the compressor control signal includes a compressor operating frequency and a power-on control signal of the inverter air conditioner outdoor unit) through the internal communication interface 13
  • the inverter air conditioner indoor unit transmits the compressor control signal to transmit the compressor control signal to the inverter air conditioner outdoor unit through the inverter air conditioner indoor unit to control the inverter air conditioner outdoor through the compressor control signal The operation of the compressor.
  • the controller 11 obtains the shutdown control signal sent by the thermostat when receiving the shutdown control signal sent by the thermostat, and acquires the collected by the inverter air conditioner indoor unit through the internal communication interface 13 when the inverter outdoor unit is running under the target reference temperature control. a current indoor temperature signal, the target reference temperature is updated to a temperature corresponding to the current indoor temperature signal, and the inverter air conditioner outdoor unit compressor is controlled by the updated target reference temperature when the inverter air conditioner outdoor unit is turned on next time run.
  • the air conditioner control system of the inverter air conditioner outdoor unit is controlled by the control device connected to the inverter air conditioner indoor unit, and the inverter air conditioner indoor unit is adapted through the control device, and then the inverter air conditioner outdoor unit is controlled by the inverter air conditioner indoor unit, based on
  • the indoor temperature obtained by the control device is controlled by the inverter air conditioner indoor unit to control the inverter air conditioner outdoor unit to operate at the obtained indoor temperature, so that the temperature controller controls the air conditioner to increase the control of the inverter air conditioner indoor unit, and then through the inverter air conditioner Indoor unit control inverter air conditioner outdoor unit frequency conversion operation.
  • a thermostat is provided to connect the inverter air conditioner indoor unit to control the inverter air conditioner outdoor unit through the control device, thereby improving the intelligence degree of the thermostat controlling the air conditioner and improving the comfort of the air conditioner.
  • the thermostat-based inverter air conditioner control device 10 further includes: a detection interface 14 connected to the controller 11, the detection interface 14 is connected to a temperature detector, and is received by a temperature detector. Indoor temperature signal.
  • the manner of obtaining the indoor temperature includes obtaining the inverter air conditioner indoor unit through the internal communication interface 13 as described above, or the thermostat-based inverter air conditioner control device 10 includes a
  • the detection interface 14 is connected to the temperature detector through the detection interface 14 to obtain the indoor temperature.
  • the indoor temperature acquisition method is diversified.
  • the controller 11 may also acquire the indoor temperature through the internal communication interface 13 and the detection interface 14, and after obtaining the two indoor temperatures at the same time, take the two indoor temperatures. The average is taken as the final indoor temperature.
  • thermostat-based inverter air conditioner control device 10 can be installed at different positions from the inverter air conditioner indoor unit, the indoor temperature can be obtained from a plurality of positions, so that the finally obtained indoor temperature is more accurate, thereby better controlling the frequency conversion.
  • the operation of the air conditioner outdoor unit improves the comfort of the air conditioner.
  • the thermostat-based inverter air conditioner control device 10 further includes a temperature detector 15 connected to the detection interface 14. That is, the temperature detector 15 can be part of the control device
  • the thermostat-based inverter air conditioner control device is also adapted to a scenario that does not include the temperature detector 15.
  • the temperature detection manner in a specific scenario is: the temperature detector 15 is set in the tone On the warmer, the temperature detector 15 is connected to the detection interface 14 by wire or wirelessly, and the controller 11 reads the indoor detected by the temperature detector 15 via the detection interface 14 by wire or wirelessly. temperature.
  • the configuration of the control device is made more flexible and diverse.
  • the thermostat-based inverter air conditioner control device 10 further includes other interfaces, the other interfaces are connected to the controller 11, and the other interfaces are connected to the control terminal, and the connection manner is It may be a wired connection or a wireless connection, including but not limited to a remote control, a mobile phone, a pad or a PC, and the like.
  • the control terminal sends a control signal to the thermostat-based inverter air conditioner control device 10 based on the other interfaces to control the control device 10 to adjust operating parameters of the inverter air conditioner outdoor unit.
  • the controller 11 may further include a communication interface, the controller 11 is connected to the control terminal through the communication interface, and the control terminal serves as a processing center, and processes the input interface 12 through a connection with the controller 11.
  • the internal communication interface 13 and the detection interface 14 data, and the controller 11 initiates a control signal to control the operation of the inverter air conditioner outdoor unit.
  • the control of the inverter air conditioner outdoor unit is more flexible and diversified.
  • the temperature control has the highest control priority.
  • the thermostat may further include a communication interface for receiving a switch signal of the external terminal in a remote or near field to control the OFF of the inverter air conditioner through the connected thermostat and the control device.
  • the internal communication interface 13 is a communication bus interface 16, and the communication bus interface 16 is connected to a plurality of inverter air conditioner indoor units, and the plurality of inverter air conditioner indoor units are connected to a plurality of inverter air conditioners. machine.
  • a plurality of inverter air conditioner outdoor units can be connected through the communication bus interface 16, and the controller 11 in the embodiment of the present invention can be passed. Control the frequency conversion operation of multiple inverter air conditioner outdoor units. Further improve the intelligence and adaptability of air conditioning control.
  • the present invention also provides a terminal comprising the thermostat-based inverter air conditioner control device 10 as described above, the control device 10 being mounted on the terminal.
  • the terminal includes, but is not limited to, an inverter air conditioner indoor unit or an inverter air conditioner outdoor unit.
  • the controller 11 of the control device 10 installed on the indoor unit of the inverter air conditioner receives a power on or off control signal of the thermostat, and correspondingly controls the internal communication interface 13
  • the inverter air conditioner indoor unit is turned on or off, and based on the inverter air conditioner indoor unit controls the opening or closing of the inverter air conditioner outdoor unit, and simultaneously receives the indoor temperature collected by the inverter air conditioner indoor unit through the internal machine communication interface, and controls the inverter air conditioner outdoor unit When shutting down, set the indoor temperature to be the target reference temperature for the next inverter air conditioner outdoor unit compressor operation control.
  • the detection interface 14 is connected to the temperature detector, and the temperature is detected by the temperature detector; when the controller 11 receives the shutdown control signal, the detection interface is acquired.
  • the indoor temperature is set to the target reference temperature of the next inverter air conditioner outdoor unit compressor operation control.
  • the air conditioner control system of the inverter air conditioner outdoor unit is controlled by the control device connected to the inverter air conditioner indoor unit, and the inverter air conditioner indoor unit is adapted through the control device, and then the inverter air conditioner outdoor unit is controlled by the inverter air conditioner indoor unit, based on
  • the indoor temperature obtained by the control device is controlled by the inverter air conditioner indoor unit to control the inverter air conditioner outdoor unit to operate at the obtained indoor temperature, so that the temperature controller controls the air conditioner to increase the control of the inverter air conditioner indoor unit, and then through the inverter air conditioner Indoor unit control inverter air conditioner outdoor unit frequency conversion operation.
  • a thermostat is provided to connect the inverter air conditioner indoor unit to control the inverter air conditioner outdoor unit through the control device, thereby improving the intelligence degree of the thermostat controlling the air conditioner and improving the comfort of the air conditioner.
  • the present invention provides a thermostat based inverter air conditioner control system 100.
  • the thermostat 101 controls the inverter air conditioner control system 100 including the thermostat-based inverter air conditioner control device 10 as described above, the control device 10 includes an input interface 12 and an internal communication interface 13,
  • the control system 100 for controlling the inverter air conditioner of the thermostat 101 further includes: a thermostat 101 connected to the input interface 12, an inverter air conditioner indoor unit 102 connected to the internal communication interface 13, and the inverter air conditioner An inverter air conditioner outdoor unit 103 connected to the indoor unit 102; wherein
  • the controller 11 acquires the collected indoor temperature signal through the internal communication interface 13 when receiving the shutdown control signal sent by the thermostat 101;
  • the controller 11 sets the temperature corresponding to the indoor temperature signal to the target reference temperature of the compressor frequency operation control of the next inverter air conditioner outdoor unit 103.
  • the controller 11 is a control chip and has certain storage and calculation (data processing) capabilities.
  • the input interface 12 may be a wired connection interface or a wireless connection interface, including but not limited to Bluetooth, WiFi, infrared or NFC, and the like.
  • the controller 11 receives the power on/off control signal of the inverter air conditioner outdoor unit 103 sent by the thermostat 101 through the input interface 12.
  • the controller 11 is connected to the inverter air conditioner indoor unit 102 through the internal communication interface 13, and controls the inverter air conditioner outdoor unit 103 to perform variable frequency operation based on the inverter air conditioner indoor unit 102.
  • the connection manner of the inverter air conditioner indoor unit 102 and the internal communication interface 13 includes, but is not limited to, a wired connection and a wireless connection.
  • the controller 11 receives the control signal sent by the thermostat 101, and after receiving the control signal sent by the thermostat 101, the controller 11 transmits the control signal to the inverter air conditioner indoor unit 102 through the internal communication interface 13, and the frequency conversion is performed.
  • the air conditioner indoor unit 102 transmits the control signal to the inverter air conditioner outdoor unit 103 to control the operation of the inverter air conditioner outdoor unit 103.
  • the controller 11 controls the inverter air conditioner outdoor unit 103 through the inverter air conditioner indoor unit 102, but is not limited to: controlling the compressor of the inverter air conditioner outdoor unit 103, the outdoor fan,
  • the four-way valve works, and the switch of the four-way valve is the choice of cooling/heating mode.
  • the controller 11 passes the internal communication interface 13 after receiving the power-on control signal of the inverter air conditioner outdoor unit 103 sent by the thermostat 101 through the input interface 12.
  • the power-on control signal is sent to the inverter air conditioner indoor unit 102 to transmit the power-on control signal to the inverter air conditioner outdoor unit 103 through the inverter air conditioner indoor unit 102 to turn on the inverter air conditioner outdoor unit 103.
  • the internal frequency communication indoor interface 102 controls the indoor temperature of the indoor environment in which the air conditioner is operated by the internal communication interface 12.
  • the control rule that the controller 11 controls the inverter air conditioner outdoor unit 103 to be turned on for the first time is: the controller 11 controls the inverter air conditioner outdoor unit with a preset high frequency after receiving the first power-on control signal sent by the thermostat 101.
  • the compressor of 103 operates at a preset frequency that is generally close to the highest frequency at which the compressor can operate (default frequency or subsequently set frequency).
  • the controller 11 receives the shutdown control signal through the internal communication interface 13 after receiving the shutdown control signal of the inverter air conditioner outdoor unit 103 that is transmitted through the input interface 12.
  • the inverter air conditioner indoor unit 102 connected to the inverter air conditioner indoor unit 102 transmits the shutdown control signal to the inverter air conditioner outdoor unit 103 connected to the inverter air conditioner indoor unit 102 to control the inverter air conditioner outdoor unit 103.
  • the current indoor temperature signal collected by the inverter air conditioner indoor unit 102 is obtained through the internal communication interface 13, and the temperature corresponding to the obtained current indoor temperature signal is set as the target of the compressor operating frequency adjustment of the inverter air conditioner outdoor unit 103.
  • the reference temperature that is, the next time the inverter outdoor unit 103 is turned on, controls the operation of the inverter air conditioner outdoor unit 103 compressor at the target reference temperature.
  • the above process of controlling the operation of the inverter air conditioner outdoor unit by the target reference temperature is a case where the controller 11 does not control the operation of the inverter air conditioner outdoor unit for the first time.
  • the determining process that the temperature corresponding to the real-time indoor temperature signal is close to the target reference temperature is: setting the temperature threshold in advance, for example, 24 degrees or 26 degrees or the like.
  • the temperature corresponding to the real-time indoor temperature signal reaches a set temperature threshold, it is determined that the temperature corresponding to the real-time indoor temperature signal is close to the target reference temperature.
  • the inverter air conditioner outdoor unit is controlled to be down-converted.
  • the frequency conversion operation control rule is: when the cooling mode is received, the controller 11 controls the inverter air conditioner outdoor unit to start up and obtain the current indoor temperature when receiving the power-on control signal sent by the thermostat. According to the difference between the current indoor temperature and the target reference temperature, the initial frequency of a compressor operation is determined. If the difference is larger, the initial frequency is higher, and the outdoor cooling temperature is rapidly decreased by outputting a larger cooling capacity; when the indoor temperature and the target reference temperature are When the difference is reduced to close, the compressor is controlled to run down.
  • This proximity is defined as the difference T is a range value close to 0 such as 0 ⁇ T ⁇ 1 ° C (according to actual needs and / or compressor performance settings) And further within this range, the frequency of the compressor is controlled according to the proximity of the indoor temperature to the target reference temperature. If the difference is smaller, the operating frequency is lower until the lowest frequency at which the compressor can operate, thereby allowing the indoor temperature to The target reference temperature value is close to achieve a comfortable effect.
  • the target reference temperature value for example, the difference between the indoor temperature and the target reference temperature is 0.1 degree or 0.2 degree, etc.
  • the process of controlling the inverter operation of the inverter air conditioner outdoor unit 103 in the air conditioning heating mode or other modes is similar to the above process, and those skilled in the art can obtain heating according to the above-mentioned frequency conversion operation process.
  • the frequency conversion operation process in the other mode will not be repeated here.
  • the controller 11 After receiving the power-on control signal input through the input interface 12, the controller 11 sends a power-on control signal to the inverter air conditioner indoor unit 102 through the internal communication interface 13, and passes the inverter air conditioner.
  • the indoor unit 102 controls the inverter air conditioner outdoor unit 103 to be turned on, and controls the inverter air conditioner indoor unit 102 to detect the indoor temperature or receives the indoor environment temperature collected by the inverter air conditioner indoor unit 102 in real time through the internal communication interface 13.
  • the control rule of the controller 11 for controlling the opening operation of the inverter air conditioner outdoor unit for the first time is: after receiving the first power-on control signal sent by the thermostat, the controller controls the compressor operation of the air-conditioner outdoor unit with a preset high frequency.
  • the preset frequency is generally close to the highest frequency at which the compressor can operate (default frequency or subsequent set frequency).
  • the current indoor ambient temperature collected by the inverter air conditioner indoor unit 102 is set as the target reference temperature of the compressor frequency adjustment of the next inverter air conditioner outdoor unit 103. That is, the operation of the inverter of the inverter air conditioner outdoor unit 103 is controlled at the target reference temperature when the inverter indoor unit 103 is turned on next time.
  • the controller 11 receives the power-on control signal of the inverter air conditioner outdoor unit 103 sent by the thermostat 101 through the input interface 12; the controller 11 acquires the set target reference after receiving the power-on control signal.
  • the controller 11 generates a compressor control signal corresponding to the target reference temperature (the compressor control signal includes a compressor operating frequency and a power-on control signal of the inverter air conditioner outdoor unit 103), and communicates through the internal machine
  • the interface 13 transmits the compressor control signal to the inverter air conditioner indoor unit 102 to transmit the compressor control signal to the inverter air conditioner outdoor unit 103 through the inverter air conditioner indoor unit 102 to be controlled by the compressor
  • the signal controls the operation of the inverter of the inverter air conditioner outdoor unit 103.
  • the controller 11 acquires the inverter air conditioner indoor unit through the internal communication interface 13 when receiving the shutdown control signal sent by the thermostat 101. 102, the current indoor temperature signal is collected, and the target reference temperature is updated to a temperature corresponding to the current indoor temperature signal, and the inverter air conditioner outdoor unit 103 is turned on next time to control the inverter air conditioner outdoor through the updated target reference temperature.
  • Machine 103 compressor operation When the inverter air conditioner outdoor unit 103 is running under the target reference temperature control, the controller 11 acquires the inverter air conditioner indoor unit through the internal communication interface 13 when receiving the shutdown control signal sent by the thermostat 101. 102, the current indoor temperature signal is collected, and the target reference temperature is updated to a temperature corresponding to the current indoor temperature signal, and the inverter air conditioner outdoor unit 103 is turned on next time to control the inverter air conditioner outdoor through the updated target reference temperature.
  • Machine 103 compressor operation When the inverter air conditioner outdoor unit 103 is running under the target reference temperature control, the controller 11 acquires the inverter air conditioner indoor
  • the air conditioner control system of the inverter air conditioner outdoor unit is controlled by the control device connected to the inverter air conditioner indoor unit, and the inverter air conditioner indoor unit is adapted through the control device, and then the inverter air conditioner outdoor unit is controlled by the inverter air conditioner indoor unit, based on
  • the indoor temperature obtained by the control device is controlled by the inverter air conditioner indoor unit to control the inverter air conditioner outdoor unit to operate at the obtained indoor temperature, so that the temperature controller controls the air conditioner to increase the control of the inverter air conditioner indoor unit, and then through the inverter air conditioner Indoor unit control inverter air conditioner outdoor unit frequency conversion operation.
  • a thermostat is provided to connect the inverter air conditioner indoor unit to control the inverter air conditioner outdoor unit through the control device, thereby improving the intelligence degree of the thermostat controlling the air conditioner and improving the comfort of the air conditioner.
  • the thermostat-based inverter air conditioner control system 100 further includes: a detection interface 104 connected to the controller 11, and the detection interface 104 is disposed on the thermostat-based inverter air conditioner control On the device 10, the detection interface 104 is connected to a temperature detector and receives an indoor temperature signal collected by the temperature detector.
  • the manner of obtaining the indoor temperature includes acquiring the inverter air conditioner indoor unit 102 through the internal communication interface 13 as described above, or the thermostat-based inverter air conditioner control device 10 includes A detection interface 14 is connected to the temperature detector through the detection interface 14 to obtain the indoor temperature.
  • the indoor temperature acquisition method is diversified.
  • the controller 11 may also acquire the indoor temperature through the internal communication interface 13 and the detection interface 14, and after obtaining the two indoor temperatures at the same time, take the two indoor temperatures. The average is taken as the final indoor temperature.
  • thermostat-based inverter air conditioner control device 10 can be installed at different positions from the inverter air conditioner indoor unit 102, the indoor temperature can be obtained from a plurality of positions, so that the finally obtained indoor temperature is more accurate, thereby achieving better control.
  • the operation of the inverter air conditioner outdoor unit improves the comfort of the air conditioner.
  • the thermostat-based inverter air conditioner control system 100 further includes a temperature detector 105 connected to the detection interface 104. That is, the temperature detector 105 can be part of the control system 100.
  • the thermostat-based inverter air conditioner control system is also adapted to a scenario that does not include the temperature detector 105.
  • the temperature detection manner in a specific scenario is: the temperature detector 105 is set in the tone On the warmer 101, the temperature detector 105 is connected to the detection interface 104 by wire or wirelessly, and the controller 11 reads the detected by the temperature detector 105 via the detection interface 104 by wire or wirelessly. Room temperature.
  • the configuration of the control device is made more flexible and diverse by arranging the temperature detector as part of the thermostat-based inverter air conditioning control system 100 or an external portion.
  • the thermostat-based inverter air conditioner control system 100 further includes other interfaces, the other interfaces are connected to the controller 11, and the other interfaces are used for connecting with the control terminal.
  • the connection manner may be a wired connection or a wireless connection
  • the control terminal includes but is not limited to a remote controller, a mobile phone, a pad or a PC, and the like.
  • the control terminal sends a control signal to the thermostat-based inverter air conditioner control device 10 based on the other interfaces to control the control device 10 to adjust operating parameters of the inverter air conditioner outdoor unit.
  • the controller 11 may further include a communication interface, the controller 11 is connected to the control terminal through the communication interface, and the control terminal serves as a processing center, and processes the input interface 12 through a connection with the controller 11.
  • the internal communication interface 13 and the detection interface 104 data, and the controller 11 initiates a control signal to control the operation of the inverter air conditioner outdoor unit.
  • the control of the inverter air conditioner outdoor unit is more flexible and diversified.
  • the temperature control has the highest control priority.
  • the thermostat may further include a communication interface for receiving a switch signal of the external terminal in a remote or near field to control the OFF of the inverter air conditioner through the connected thermostat and the control device. Broken.
  • the internal communication interface 13 is a communication bus interface 106, and the communication bus interface 106 is connected to a plurality of inverter air conditioner indoor units 102, and the plurality of inverter air conditioner indoor units 102 are connected to a plurality of frequency conversions.
  • Air conditioner outdoor unit 103 Air conditioner outdoor unit 103.
  • a plurality of inverter air conditioner indoor units 102 can be connected through the communication bus interface 106, and then the controller in the embodiment of the present invention can be used.
  • 11 Controls the frequency conversion operation of the plurality of inverter air conditioner outdoor units 103. Further improve the intelligence and adaptability of air conditioning control.
  • each control signal of the temperature controller 101 carries identification information of the inverter air conditioner indoor unit 102, and the controller 11 passes the identification information.
  • the communication bus interface 03 controls the corresponding inverter air conditioner indoor unit 102 and the inverter air conditioner outdoor unit 103 to perform frequency conversion operation.
  • the control rules of the inverter air conditioner indoor unit 102 and the inverter air conditioner outdoor unit 103 are the same as those of the existing inverter air conditioner, and will not be further described herein.
  • the thermostat-based inverter air conditioner control system 100 includes a terminal including the thermostat-based inverter air conditioner control device 10 as described above, and the control device 10 is mounted on the terminal.
  • the terminal includes, but is not limited to, an inverter air conditioner indoor unit 102 or an inverter air conditioner outdoor unit 103.
  • the controller 11 of the control device 10 installed on the inverter air conditioner indoor unit 102 receives the power on or off control signal of the thermostat, and corresponds to the internal communication interface 13 through the terminal.
  • the collected indoor temperature is set as the target reference temperature of the compressor operation control of the next inverter air conditioner outdoor unit.
  • the control system 10 includes the detection interface 104, the detection interface 104 is connected to the temperature detector, and the temperature is detected by the temperature detector; when the controller 11 receives the shutdown control signal, the detection interface 104 is acquired.
  • the indoor temperature is collected, and the indoor temperature is set as the target reference temperature of the compressor operation control of the next inverter air conditioner outdoor unit 103.
  • the air conditioner control system of the inverter air conditioner outdoor unit is controlled by the control device connected to the inverter air conditioner indoor unit, and the inverter air conditioner indoor unit is adapted through the control device, and then the inverter air conditioner outdoor unit is controlled by the inverter air conditioner indoor unit, based on
  • the indoor temperature obtained by the control device is controlled by the inverter air conditioner indoor unit to control the inverter air conditioner outdoor unit to operate at the obtained indoor temperature, so that the temperature controller controls the air conditioner to increase the control of the inverter air conditioner indoor unit, and then through the inverter air conditioner Indoor unit control inverter air conditioner outdoor unit frequency conversion operation.
  • a thermostat is provided to connect the inverter air conditioner indoor unit to control the inverter air conditioner outdoor unit through the control device, thereby improving the intelligence degree of the thermostat controlling the air conditioner and improving the comfort of the air conditioner.
  • the invention provides a frequency converter based variable frequency air conditioner control method.
  • the thermostat-based inverter air conditioner control system is controlled by the method of the embodiment to control the frequency converter, and the steps include:
  • Step S10 the controller receives the control signal of the outdoor air conditioner of the inverter air conditioner sent by the thermostat during the operation of the air conditioner;
  • Step S20 the controller sends a shutdown control signal to the inverter air conditioner indoor unit to send a shutdown control signal to the inverter air conditioner outdoor unit to close the inverter air conditioner outdoor unit through the inverter air conditioner indoor unit, and simultaneously obtain an indoor temperature signal.
  • the temperature corresponding to the indoor temperature signal is recorded as a target reference temperature of the compressor frequency operation control after the inverter outdoor unit is turned on again.
  • the controller is a control chip and has certain storage and calculation (data processing) capabilities.
  • the input interface may be a wired connection interface or a wireless connection interface, including but not limited to Bluetooth, WiFi, infrared or NFC, and the like.
  • the controller receives the power on/off control signal of the inverter air conditioner outdoor unit sent by the thermostat through the input interface.
  • the controller is connected to the inverter air conditioner indoor unit through the internal communication interface, and controls the frequency conversion outdoor unit frequency conversion operation based on the inverter air conditioner indoor unit.
  • the connection manner of the inverter air conditioner indoor unit and the internal machine communication interface includes, but is not limited to, a wired connection and a wireless connection.
  • the controller receives the control signal sent by the thermostat, and after receiving the control signal sent by the thermostat, the controller sends the control signal to the inverter air conditioner indoor unit through the internal communication interface, and the inverter air conditioner indoor unit will The control signal is sent to the inverter air conditioner outdoor unit to control the operation of the inverter air conditioner outdoor unit.
  • the controller controls the inverter air conditioner outdoor unit through the inverter air conditioner indoor unit, but is not limited to: controlling the compressor of the inverter air conditioner outdoor unit, the outdoor fan, and the four-way valve, wherein The four-way valve switch is the choice of cooling/heating mode.
  • the controller receives the power-on control signal of the inverter air conditioner outdoor unit sent by the thermostat through the input interface, and then performs the power-on control through the internal communication interface.
  • the signal is sent to the inverter air conditioner indoor unit to send the power-on control signal to the inverter air conditioner outdoor unit through the inverter air conditioner indoor unit to open the inverter air conditioner outdoor unit.
  • the indoor temperature of the indoor environment in which the air conditioner indoor unit collects the air conditioner is controlled by the internal communication interface.
  • the control rule that the controller controls the opening and running of the outdoor unit of the inverter air conditioner for the first time is: after receiving the first power-on control signal sent by the thermostat, the controller controls the compressor operation of the outdoor unit of the air conditioner with a preset high frequency.
  • the preset frequency is typically near the highest frequency at which the compressor can operate (default frequency or subsequent set frequency).
  • the controller When the control signal is a shutdown control signal, the controller sends the shutdown control signal to the internal frequency communication interface through the internal communication interface after receiving the inverter air conditioner outdoor machine control signal transmitted through the input interface.
  • the inverter air conditioner indoor unit transmits the shutdown control signal to the inverter air conditioner outdoor unit connected to the inverter air conditioner indoor unit to control the inverter air conditioner outdoor unit through the inverter air conditioner indoor unit.
  • the current indoor temperature signal collected by the inverter air conditioner indoor unit is obtained through the internal communication interface, and the temperature corresponding to the obtained current indoor temperature signal is set as the target reference temperature of the compressor operating frequency adjustment of the inverter air conditioner outdoor unit.
  • the operation of the inverter air conditioner outdoor unit compressor is controlled at the target reference temperature.
  • the above process of controlling the operation of the inverter air conditioner outdoor unit through the target reference temperature is that the controller does not control the operation of the inverter air conditioner outdoor unit for the first time.
  • the controller After receiving the power-on control signal input through the input interface, the controller sends a power-on control signal to the inverter air conditioner indoor unit through the internal communication interface, and controls the inverter air conditioner outdoor through the inverter air conditioner indoor unit
  • the machine is turned on, and the indoor unit of the inverter air conditioner is controlled to detect the indoor temperature or the indoor environment temperature collected by the indoor unit of the inverter air conditioner is received in real time through the internal communication interface.
  • the control rule that the controller controls the opening and running of the outdoor unit of the inverter air conditioner for the first time is: after receiving the first power-on control signal sent by the thermostat, the controller controls the compressor operation of the outdoor unit of the air conditioner with a preset high frequency.
  • the preset frequency is typically near the highest frequency at which the compressor can operate (default frequency or subsequent set frequency).
  • the controller After controlling the startup of the inverter air conditioner outdoor unit, the controller receives the inverter air conditioner outdoor machine control signal sent by the thermostat through the input interface, and after receiving the shutdown control signal, passes through the internal communication interface
  • the inverter air conditioner indoor unit sends a shutdown control signal, and controls the inverter air conditioner outdoor unit according to the shutdown control signal through the inverter air conditioner indoor unit, and simultaneously acquires the inverter air conditioner indoor unit through the internal machine communication interface.
  • the current indoor ambient temperature is set to the target reference temperature for the next inverter air conditioner outdoor unit compressor frequency adjustment. That is, the operation of the inverter air conditioner outdoor unit compressor is controlled at the target reference temperature when the inverter air conditioner outdoor unit is turned on next time.
  • the controller receives an inverter air conditioner outdoor unit power-on control signal sent by the thermostat through the input interface; the controller acquires the set target reference temperature after receiving the power-on control signal; the control Generating a compressor control signal corresponding to the target reference temperature (the compressor control signal includes a compressor operating frequency of the inverter air conditioner outdoor unit and a power-on control signal), and the inverter communication air-conditioning room is passed through the internal communication interface Transmitting the compressor control signal to send the compressor control signal to the inverter air conditioner outdoor unit through the inverter air conditioner indoor unit to control the inverter air conditioner outdoor unit compressor by the compressor control signal run.
  • the compressor control signal includes a compressor operating frequency of the inverter air conditioner outdoor unit and a power-on control signal
  • the controller acquires the current indoor collected by the inverter air conditioner indoor unit through the internal communication interface when the inverter air conditioner outdoor unit is operated under the target reference temperature control, when receiving the shutdown control signal sent by the thermostat And a temperature signal, the target reference temperature is updated to a temperature corresponding to the current indoor temperature signal, and the operation of the inverter air conditioner outdoor unit compressor is controlled by the updated target reference temperature when the inverter air conditioner outdoor unit is turned on next time.
  • control device detects the Y, B, W, G and other switching signals of the thermostat, and communicates with the inverter air conditioner indoor unit through the internal communication interface according to the aforementioned control logic to control the operation of the inverter air conditioner.
  • the inverter air conditioner indoor unit also has a room temperature sensor and can communicate with the interface device to transmit the indoor ambient temperature.
  • the control device only communicates with the inverter air conditioner indoor unit, sends a control command to the internal machine, and the internal machine communicates with the external machine and sends a control command to the external machine, and the external machine only accepts the internal machine control command.
  • the interface device only sends the internal load command to the inverter air conditioner indoor unit, and the internal machine respectively turns on the inner fan and the air deflector, and the inverter air conditioner outdoor unit remains in the off state.
  • the control device sends a power-on command to the internal machine, and then the internal machine controls according to the control rules of the conventional inverter air conditioner, that is, the internal machine controls the indoor fan, the air deflector and the like to be turned on, and simultaneously sends the command to the inverter air conditioner outdoor unit control.
  • External load The control device controls the frequency of the compressor by detecting the indoor temperature according to the set temperature.
  • the air conditioner control system of the inverter air conditioner outdoor unit is controlled by the control device connected to the inverter air conditioner indoor unit, and the inverter air conditioner indoor unit is adapted through the control device, and then the inverter air conditioner outdoor unit is controlled by the inverter air conditioner indoor unit, based on
  • the indoor temperature obtained by the control device is controlled by the inverter air conditioner indoor unit to control the inverter air conditioner outdoor unit to operate at the obtained indoor temperature, so that the temperature controller controls the air conditioner to increase the control of the inverter air conditioner indoor unit, and then through the inverter air conditioner Indoor unit control inverter air conditioner outdoor unit frequency conversion operation.
  • a thermostat is provided to connect the inverter air conditioner indoor unit to control the inverter air conditioner outdoor unit through the control device, thereby improving the intelligence degree of the thermostat controlling the air conditioner and improving the comfort of the air conditioner.
  • the thermostat-based inverter air conditioner control system further includes other interfaces, the other interfaces are connected to the controller, and the other interfaces are used for connecting with the control terminal, and the connection manner is It may be a wired connection or a wireless connection, including but not limited to a remote control, a mobile phone, a pad or a PC, and the like.
  • the control terminal sends a control signal to the thermostat-based inverter air conditioner control device based on the other interface to control the control device to adjust an operating parameter of the inverter air conditioner outdoor unit.
  • the controller may further include a communication interface, the controller is connected to the control terminal through the communication interface, and the control terminal serves as a processing center, and processes the input interface and the internal communication interface through the connection with the controller.
  • the thermostat may further include a communication interface for receiving a switch signal of the external terminal in a remote or near field to control the OFF of the inverter air conditioner through the connected thermostat and the control device.
  • a second embodiment of the control method of the present invention based on the foregoing first embodiment, after the step S20, further includes:
  • Step S30 after receiving the power-on control signal sent by the thermostat, the controller acquires a real-time indoor temperature signal collected by the inverter air conditioner indoor unit;
  • Step S40 when the temperature corresponding to the real-time indoor temperature signal is close to the target reference temperature, the controller controls the compressor down-conversion operation of the inverter air conditioner outdoor unit.
  • the inverter air conditioner indoor unit, the inverter air conditioner outdoor unit, and the control device have been powered on, and the control device has set the target reference temperature TS1.
  • the user sets the inverter air conditioner outdoor unit to start the operation in the cooling mode through the thermostat.
  • the thermostat is controlled by the internal communication interface of the control device through the inverter air conditioner indoor unit to control the inverter air conditioner outdoor unit to operate in the cooling mode.
  • the indoor temperature of the thermostat is detected to be higher than the target reference temperature, the output of the compressor is turned on, the internal fan is turned on, and the four-way valve is turned off, and the control device detects that the compressor is turned on and the four-way valve is closed, and the adjustment is made.
  • the inverter controls the inverter air conditioner outdoor unit to open the cooling mode.
  • the control device controls the inverter of the inverter air conditioner outdoor unit through the external communication interface, and the four-way valve is closed.
  • the fixed-frequency internal machine is still controlled by the thermostat to realize the cooling. run.
  • the compressor frequency control rule is as follows: If the difference between the indoor ambient temperature and the target reference temperature TS1 is large when the compressor is started, the operation is started at a higher frequency, and the larger cooling capacity is output, and the indoor ambient temperature is rapidly lowered; If the difference between the indoor ambient temperature and the target reference temperature TS1 is small, the operation is started at a lower frequency, the output is smaller, the indoor temperature is slowly changed, and the comfort is improved.
  • the determining process that the temperature corresponding to the real-time indoor temperature signal is close to the target reference temperature is: setting a temperature threshold in advance, for example, 24 degrees or 26 degrees.
  • a temperature threshold in advance, for example, 24 degrees or 26 degrees.
  • the inverter air conditioner outdoor unit is controlled to be down-converted.
  • the inverter operation control rule is: in the cooling mode, when the controller receives the power-on control signal sent by the thermostat, the controller controls the inverter air conditioner outdoor unit to start, and obtains the current indoor temperature, according to the current
  • the difference between the indoor temperature and the target reference temperature determines the initial frequency of a compressor operation. If the difference is larger, the initial frequency is higher, and the room temperature is rapidly reduced by outputting a larger cooling capacity; when the difference between the indoor temperature and the target reference temperature When it is reduced to close, the compressor is controlled to reduce frequency.
  • This proximity is defined as the difference T is a range value close to 0 such as 0 ⁇ T ⁇ 1 ° C (according to actual needs and / or compressor performance settings), and Further in this range, the frequency of the compressor is controlled according to the proximity of the indoor temperature to the target reference temperature. If the difference is smaller, the operating frequency is lower until the lowest frequency at which the compressor can operate, thereby allowing the indoor temperature and the target reference. The temperature value is close to achieve a comfortable effect.
  • the target reference temperature value for example, the difference between the indoor temperature and the target reference temperature is 0.1 degree or 0.2 degree, etc.
  • the process of controlling the variable frequency operation of the inverter of the inverter air conditioner in the air conditioning heating mode or other modes is similar to the above process, and those skilled in the art can obtain heating according to the above-mentioned frequency conversion operation process.
  • the frequency conversion operation process in the mode will not be repeated here.
  • the method further includes:
  • Step S50 the controller receives the shutdown control signal sent by the thermostat when the inverter outdoor unit is in the control operation of the target reference temperature, and acquires the current indoor temperature signal collected by the inverter air conditioner indoor unit;
  • Step S60 the controller updates the target reference temperature to a temperature corresponding to the current indoor temperature signal.
  • the control device controls the air conditioner to monitor the compressor control signal output by the thermostat during the operation according to the target reference temperature of TS1: if the thermostat outputs the compressor OFF signal, the compressor is turned off, and the compressor is recorded. At this time, the room temperature is used as the new set temperature TSnew of the control device; if the thermostat does not output the compressor off signal, even if the indoor temperature drops, the compressor is kept under the original control device set temperature TS1, and the compressor should be kept. The operation is continued until the thermostat outputs a compressor off signal and the room temperature at this time is recorded as the new target reference temperature TSnew of the control device.
  • the thermostat when the inverter air conditioner outdoor unit is under the control of the target reference temperature, the thermostat outputs a compressor off signal when the room temperature drops to be equal to the target reference temperature.
  • the control device detects the compressor off signal output by the thermostat, the control device detects the current room temperature TS2 through the interface and saves it, and updates the target reference temperature of the control device to TS2.
  • the control device detects the compressor start control signal of the thermostat again, it operates at the set temperature as TS2.
  • the method for obtaining indoor temperature includes:
  • Step S70 the controller acquires the current indoor temperature collected by the indoor unit of the inverter air conditioner through an internal communication interface
  • the controller acquires a current indoor temperature collected by the temperature detector through the detection interface.
  • the process of acquiring the indoor temperature may be obtained from the inverter air conditioner indoor unit through the internal communication interface, or may be obtained by the detection interface included in the control system to obtain the current indoor temperature collected by the temperature detector.
  • the thermostat-based inverter air conditioner control system further includes: a detection interface connected to the controller, the detection interface is disposed on the thermostat-based inverter air conditioner control device, the detection interface and the temperature The detector is connected to receive an indoor temperature signal collected by the temperature detector.
  • the manner of obtaining the indoor temperature includes obtaining the indoor air conditioner from the inverter air conditioner through the internal communication interface as described above, or the temperature converter-based inverter air conditioner control device includes a detection interface. And connecting the temperature detector through the detection interface to obtain the indoor temperature.
  • the indoor temperature acquisition method is diversified.
  • the controller may also obtain the indoor temperature through the internal communication interface and the detection interface, and after obtaining the two indoor temperatures at the same time, the two indoor temperatures are averaged as The final indoor temperature.
  • thermostat-based inverter air conditioner control device can be installed at different positions from the inverter air conditioner indoor unit, the indoor temperature can be obtained from a plurality of positions, so that the finally obtained indoor temperature is more accurate, thereby further controlling the inverter air conditioner.
  • the operation of the outdoor unit improves the comfort of the air conditioner.
  • thermostat-based inverter air conditioner control system further includes: a temperature detector, and the temperature detector is connected to the detection interface. That is, the temperature detector can be part of the control system.
  • the thermostat-based inverter air conditioner control system is also adapted to a scenario that does not include a temperature detector.
  • the temperature detection method in a specific scenario is: the temperature detector is disposed in the thermostat The temperature detector is connected to the detection interface by a wired or wireless manner, and the controller reads the indoor temperature detected by the temperature detector by a detection interface through a wired or wireless manner.
  • the configuration of the control device is made more flexible and diversified by setting the temperature detector to a part of the thermostat-based inverter air conditioner control system or an external part.
  • the execution bodies of the thermostat-based inverter air conditioner control methods of the above first to third embodiments may each be a thermostat-based inverter air conditioner control device. Further, the thermostat-based inverter air conditioner control method can be implemented by a control program installed on the thermostat-based inverter air conditioner control.

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Abstract

La présente invention concerne un dispositif de commande de climatiseur à onduleur (10) basé sur un thermostat (101) comprenant : un contrôleur (11) et une interface d'entrée (12) et une interface de communication d'unité intérieure (13) raccordée au contrôleur (11), l'interface d'entrée (12) étant raccordée au thermostat (101) pour recevoir un signal de commande transmis par le thermostat (101). L'interface de communication d'unité intérieure (13) est raccordée à une unité intérieure de climatiseur à onduleur (102), et l'unité intérieure de climatiseur à onduleur (102) est raccordée à une unité extérieure de climatiseur à onduleur (103). Le contrôleur (11) reçoit, par l'intermédiaire de l'interface de communication d'unité intérieure (13), un signal de température intérieure acquis par l'unité intérieure de climatiseur à onduleur (102). Le contrôleur (11) définit, selon un signal de commande d'arrêt du thermostat (101) et le signal de température intérieure acquis par l'unité intérieure de climatiseur à onduleur (102), une température de référence cible pour réguler une fréquence de fonctionnement d'un compresseur de l'unité extérieure de climatiseur à onduleur (103). La présente invention concerne également un terminal, ainsi qu'un système de commande de climatiseur à onduleur (100) et un procédé basé sur un thermostat (101). Une solution dans laquelle un thermostat (101) est raccordé à une unité intérieure de climatiseur à onduleur (102) via un dispositif de commande (10) pour commander une unité extérieure de climatiseur à onduleur (103) est proposée pour contrôler le thermostat (101) par rapport à un climatiseur plus intelligent et améliore le confort fourni par le climatiseur.
PCT/CN2016/072334 2015-11-26 2016-01-27 Dispositif de commande de climatiseur à onduleur basé sur un thermostat, terminal, système et procédé WO2017088305A1 (fr)

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