WO2018072431A1 - 新风机控制方法及新风机 - Google Patents

新风机控制方法及新风机 Download PDF

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Publication number
WO2018072431A1
WO2018072431A1 PCT/CN2017/083283 CN2017083283W WO2018072431A1 WO 2018072431 A1 WO2018072431 A1 WO 2018072431A1 CN 2017083283 W CN2017083283 W CN 2017083283W WO 2018072431 A1 WO2018072431 A1 WO 2018072431A1
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WO
WIPO (PCT)
Prior art keywords
temperature
new fan
air
air temperature
return air
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2017/083283
Other languages
English (en)
French (fr)
Inventor
万永强
许永锋
熊美兵
李波
舒文涛
钱小龙
陈汝锋
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Midea Group Co Ltd
GD Midea Heating and Ventilating Equipment Co Ltd
Original Assignee
Midea Group Co Ltd
GD Midea Heating and Ventilating Equipment Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Midea Group Co Ltd, GD Midea Heating and Ventilating Equipment Co Ltd filed Critical Midea Group Co Ltd
Priority to CA3029657A priority Critical patent/CA3029657A1/en
Priority to KR1020177024638A priority patent/KR102012818B1/ko
Priority to JP2018509820A priority patent/JP6548285B2/ja
Priority to AU2017347333A priority patent/AU2017347333B2/en
Priority to SG11201811668PA priority patent/SG11201811668PA/en
Priority to BR112019001087-4A priority patent/BR112019001087A2/pt
Publication of WO2018072431A1 publication Critical patent/WO2018072431A1/zh
Priority to US16/140,239 priority patent/US11098917B2/en
Priority to PH12019500159A priority patent/PH12019500159A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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
    • F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
    • F24F11/32—Responding to malfunctions or emergencies
    • F24F11/38—Failure diagnosis
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
    • F24F11/32—Responding to malfunctions or emergencies
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
    • F24F11/49—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring ensuring correct operation, e.g. by trial operation or configuration checks
    • 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
    • F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
    • F24F11/63—Electronic processing
    • 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
    • F24F11/76—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 by means responsive to temperature, e.g. bimetal springs
    • 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
    • F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
    • F24F11/81—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the air supply to heat-exchangers or bypass channels
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2110/00—Control inputs relating to air properties
    • F24F2110/10—Temperature
    • 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 invention relates to the field of air conditioners, in particular to a new fan control method and a new fan.
  • Temperature sensors are widely used in home appliances (such as air conditioners). Take the temperature sensor in the air conditioner's new fan as an example. In addition to the common return air temperature sensor and coil temperature sensor on the indoor unit, there is also a supply air temperature sensor. However, when there are many applications of temperature sensors, the probability of machine failure is also high. Common faults such as temperature sensor short circuit, open circuit and temperature drift. In the prior art, when the corresponding temperature sensor of the air conditioner fails, the air conditioner usually sends a fault alarm message to prompt the user that the corresponding temperature sensor has failed, and the air conditioner cannot be used before the fault of the temperature sensor is eliminated. Turning on the operation again affects the user's experience with the air conditioner.
  • the main object of the present invention is to provide a new fan control method, which aims to solve the problem that the new fan cannot be operated again when the return air temperature sensor of the new fan fails.
  • the present invention provides a new fan control method, the new fan control method comprising the following steps:
  • the air supply temperature sensor of the new fan When the air supply temperature sensor of the new fan does not fail, the supply air temperature of the new fan is obtained, and the obtained supply air temperature is taken as a new return air temperature, and the new fan is controlled to run again.
  • determining whether the return air temperature sensor of the new fan is faulty comprises the following steps:
  • the return air temperature of the new fan is detected according to the first preset detection period
  • the determining whether the air supply temperature sensor of the new fan is faulty comprises:
  • the current supply air temperature of the new fan is detected according to the second preset detection period, and the highest supply air temperature and the lowest return air temperature of the new fan in the third preset time period are recorded.
  • the method further includes:
  • the taking the supplied air temperature as the new return air temperature, after controlling the new fan to run again further includes:
  • the present invention also provides a non-transitory computer readable storage medium having stored thereon a computer program which, when executed by a processor, implements the above-described new fan control method.
  • the present invention also provides a new fan, including an air inlet passage and an exhaust passage, and a heat exchanger disposed on the air inlet passage, the exhaust passage discharging the indoor air to the outside.
  • the inlet air passage blows the outdoor air through the heat exchange of the heat exchanger and blows into the room;
  • the new fan further includes a control device for controlling the new fan, and the control device includes:
  • Return air temperature fault detection module used to judge whether the return air temperature sensor of the new fan is faulty when the new fan is in normal operation
  • Supply air temperature fault detection module used to determine whether the air supply temperature sensor of the new fan is faulty
  • Control module used to close the internal valve corresponding to the new fan when the return air temperature sensor fails, the fan motor keeps running; and when the air supply temperature sensor of the new fan does not fail, obtain the air supply temperature of the new fan, The obtained air supply temperature is taken as the new return air temperature, and the new fan is controlled to run again.
  • the return air temperature fault detection module comprises:
  • Return air temperature detecting unit used to detect the return air temperature of the new fan according to the first preset detection period when the new fan is in normal operation; and record the new preset time duration according to the detected return air temperature of the new fan Maximum return air temperature of the fan Degree and minimum return air temperature;
  • a return air temperature fault determining unit configured to determine whether a difference between the highest return air temperature and the lowest return air temperature is greater than or equal to a preset first temperature deviation value; when the highest return air temperature and the lowest return When the difference of the wind temperature is greater than or equal to the preset temperature deviation value, it is determined that the return air temperature sensor is faulty, and the fault alarm information of the return air temperature sensor is issued.
  • the air supply temperature fault detection module comprises:
  • the air supply temperature detecting unit is configured to: when the fan motor runs for a second preset duration, detect a current air supply temperature of the new fan according to the second preset detection period, and record a maximum delivery of the new fan in the third preset time period. Wind temperature and minimum return air temperature;
  • the air supply temperature failure determining unit is configured to determine whether a difference between the highest air supply temperature and the lowest air supply temperature is less than a preset second temperature deviation value; when the highest air supply temperature and the lowest air supply temperature When the difference in temperature is less than the preset second temperature deviation value, it is determined that the supply air temperature sensor has not failed.
  • the air supply temperature fault determining unit is further configured to:
  • the air supply temperature failure determining unit is further configured to: when the new fan runs again for the fourth preset time period, re-determine whether the air supply temperature sensor of the new fan is faulty until the air supply temperature reaches the indoor setting Set the temperature.
  • the invention provides a new fan control method, and the new fan control method comprises: judging whether a return air temperature sensor of the new fan is faulty when the new fan is in normal operation; and when the return air temperature sensor is faulty, closing the corresponding corresponding to the new fan
  • the internal valve, the fan motor keeps running; judge whether the air supply temperature sensor of the new fan is faulty; when the air supply temperature sensor of the new fan does not malfunction, obtain the supply air temperature of the new fan, and obtain the supplied air supply temperature As a new return air temperature, control the new fan to run again.
  • the new fan control method of the invention solves the problem that the new fan cannot be operated again when the return air temperature sensor of the new fan fails, and improves the user experience of the air conditioner.
  • FIG. 1 is a schematic flow chart of a first embodiment of a new fan control method according to the present invention
  • FIG. 2 is a schematic flow chart of a second embodiment of a new fan control method according to the present invention.
  • FIG. 3 is a schematic flow chart of a third embodiment of a new fan control method according to the present invention.
  • FIG. 4 is a schematic flow chart of a fourth embodiment of a new fan control method according to the present invention.
  • FIG. 5 is a schematic flow chart of a fifth embodiment of a new fan control method according to the present invention.
  • FIG. 6 is a schematic diagram of functional modules of a first embodiment of a control device for a new fan of the present invention.
  • FIG. 7 is a schematic diagram of a refinement function module of a return air temperature fault detecting module in a second embodiment of a control device for a new fan of the present invention
  • FIG. 8 is a schematic diagram showing the refinement function module of the air supply temperature fault detecting module in the third embodiment of the control device for the new fan of the present invention.
  • the new fan control method includes:
  • Step S10 when the new fan is in normal operation, it is determined whether the return air temperature sensor of the new fan is faulty;
  • a new fan of an air conditioner includes an air inlet passage and an exhaust passage, and a heat exchanger disposed on the air inlet passage, the exhaust passage exhausting indoor air to the outside, the air inlet passage The outdoor air is blown into the room after heat exchange through the heat exchanger.
  • a return air temperature sensor is provided at the air return opening of the air conditioner fresh air blower (that is, at the passage opening of the air exhaust passage of the new air blower), at the air supply opening of the new air blower (ie, the passage opening of the air supply passage of the new air blower)
  • the temperature of the return air inlet of the new fan is detected by the return air temperature sensor
  • the temperature of the fresh air blower is detected by the air supply temperature sensor
  • the return air temperature of the new fan is used as a new fan.
  • the temperature control parameters control the operation of the new fan to achieve control of the indoor temperature.
  • the air conditioner uses the target temperature set by the user (for example, 26 ° C) as the final temperature control target, and achieves the control by controlling the frequency of the compressor or the speed of the fan motor in the new fan.
  • the indoor temperature is controlled so that the indoor temperature finally reaches the target temperature (26 ° C) set by the user.
  • the indoor temperature is obtained by the return air temperature sensor at the return air inlet of the new fan (that is, at the passage opening of the fresh air exhaust passage), that is, the current return air temperature at the return air outlet of the new fan is taken as Current indoor air temperature.
  • the new fan control method provided by the embodiment of the present invention firstly determines the fresh air when the new fan is in normal operation. Whether the return air temperature sensor at the air return of the machine is faulty.
  • Step S20 when the return air temperature sensor fails, the internal valve corresponding to the new fan is turned off, and the fan motor is kept running;
  • the new fan when it is determined that the return air temperature sensor of the new fan is faulty, the internal valve corresponding to the new fan is closed (ie, the new fan is stopped to stop the refrigerant circulation), and the fan motor in the new fan is controlled at the same time. Keep running. It should be noted that, in the present embodiment, when the return air temperature sensor fails, although the new fan does not have the function of cooling and heating, the new fan can still blow the outdoor air into the room, thereby improving the indoor air quality.
  • Step S30 determining whether the air supply temperature sensor of the new fan is faulty
  • step S40 when the air supply temperature sensor of the new fan does not have a fault, the air supply temperature of the new fan is obtained, and the obtained air supply temperature is taken as a new return air temperature, and the new fan is controlled to run again.
  • the return air temperature sensor fails, although the internal valve corresponding to the new fan is turned off, the fan motor of the new fan continues to operate, and the air supply temperature sensor of the new fan is judged at this time. Whether or not a fault occurs, and determining whether to obtain the air supply temperature of the new fan according to the judgment result.
  • the air supply temperature sensor of the new fan when it is determined that the air supply temperature sensor of the new fan does not have a fault, the air supply temperature of the new fan is acquired, and the obtained air is obtained. The supply air temperature is used as a new return air temperature to control the new fan to run again.
  • the new fan control method of the embodiment of the present invention first, when the new fan is in normal operation, it is judged whether the return air temperature sensor of the new fan is faulty; then, when the return air temperature sensor fails, the internal valve corresponding to the new fan is closed, The fan motor keeps running; then, it is judged whether the air supply temperature sensor of the new fan is faulty; finally, when the air supply temperature sensor of the new fan does not malfunction, the supply air temperature of the new fan is obtained, and the obtained supply air temperature is obtained. As a new return air temperature, control the new fan to run again.
  • the new fan control method of the embodiment of the invention solves the problem that the new fan cannot be operated again when the return air temperature sensor of the new fan fails, and improves the user experience of using the air conditioner.
  • the step S10 includes:
  • Step S11 when the new fan is in normal operation, detecting the return air temperature of the new fan according to a preset detection period;
  • Step S12 recording, according to the detected return air temperature of the new fan, a maximum return air temperature and a minimum return air temperature of the new fan in the first preset time period;
  • Step S13 determining whether the difference between the highest return air temperature and the lowest return air temperature is greater than or equal to a preset first temperature deviation value
  • Step S14 when the difference between the highest return air temperature and the lowest return air temperature is greater than or equal to a preset temperature deviation value, determining that the return air temperature sensor is faulty, and issuing a fault alarm information of the return air temperature sensor .
  • determining whether the return air temperature sensor has a fault by determining whether the return air temperature sensor of the new fan has a temperature detecting function, for example, When the return air temperature sensor does not detect the temperature, it is determined that the return air temperature sensor has a fault.
  • the new fan control method of the present embodiment detects the return air temperature of the new fan every the detection period T, thereby obtaining the current return air temperature of the new fan.
  • the first preset detection period T, the first preset duration nT, and the first temperature deviation value ⁇ T1 may be set according to actual conditions.
  • the first preset detection period T is 10 seconds to 15 seconds
  • the first preset time period nT is 2 minutes to 3 minutes
  • the first temperature deviation value ⁇ T1 is 1.5 ° C to 2 °C.
  • the first preset detection period T is 10 seconds
  • the first preset duration nT is 2 minutes
  • the first temperature deviation value ⁇ T1 is 1.5° C.
  • the return air temperature sensor at the return air outlet of the new fan detects the return air temperature of the new fan every 10 seconds; then, according to the return air temperature detected by the return air temperature sensor Recording a maximum return air temperature T1max and a minimum return air temperature T1min of the new fan in 2 minutes; then, determining whether the difference between the recorded highest return air temperature T1max and the lowest return air temperature T1min is greater than or equal to a preset number a temperature deviation value ⁇ T1, that is, a judgment
  • the new fan control method determines that the return air temperature sensor of the new fan is faulty according to the highest return air temperature T1max, the minimum return air temperature T1min, and the preset first temperature deviation value ⁇ T1 recorded in the first preset time period nT.
  • ⁇ T1 it is judged that the return air temperature sensor of the new fan has a fault, and the fault alarm information of the return air temperature sensor is issued.
  • the step S30 includes:
  • Step S31 when the fan motor runs for a second preset time period, detecting a current air supply temperature of the new fan according to the second preset detection period, and recording a maximum air supply temperature of the new fan in the third preset time period.
  • Minimum return air temperature when the fan motor runs for a second preset time period, detecting a current air supply temperature of the new fan according to the second preset detection period, and recording a maximum air supply temperature of the new fan in the third preset time period.
  • Step S32 determining whether the difference between the highest air supply temperature and the lowest air supply temperature is less than a preset second temperature deviation value
  • Step S33 when the difference between the highest supply air temperature and the lowest supply air temperature is less than a preset second temperature deviation value At the time, it is judged that the supply air temperature sensor has not failed.
  • whether the air supply temperature sensor is faulty is detected by detecting whether the air supply temperature sensor of the new fan is open or shorted; in another embodiment, the new air blower can be sent. Whether the wind temperature sensor has a judgment of the temperature detecting function, and further determines whether the air supply temperature sensor has a fault. For example, when the air temperature sensor does not detect the temperature, it is determined that the air supply temperature sensor has a fault.
  • the new fan control method of the embodiment detects the supply air temperature of the new fan every second detection period T2, thereby obtaining the current supply air temperature of the new fan.
  • the second preset detection period T2, the second preset duration mT, the third preset duration n2T, and the second temperature deviation value ⁇ Ta may be set according to actual conditions.
  • the second preset detection period T2 is 10 seconds to 15 seconds
  • the second preset duration mT is 2 minutes to 3 minutes
  • the third preset duration n2T is also 2 minutes to
  • the second temperature deviation value ⁇ Ta is 1.5 ° C to 2 ° C for 3 minutes.
  • the second preset detection period T2 is 10 seconds
  • the second preset duration mT is 3 minutes
  • the third preset duration n2T is 2 minutes
  • the deviation value ⁇ Ta is 1.5 ° C, which will be described in detail below as an example:
  • the air supply temperature sensor at the fresh air blower is every 10 seconds (ie, the second preset detection period T2) Detecting the supply air temperature of the new fan once, and recording the highest supply air temperature Tamax and the minimum supply air temperature Tamin of the new fan in 2 minutes (ie, the third preset time period n2T); then, determining the highest air supply Whether the difference between the temperature Tamax and the minimum supply air temperature Tamin is less than a preset second temperature deviation value ⁇ Ta, that is, determining
  • the new fan control method determines that the air supply temperature sensor of the new fan is faulty according to the highest air supply temperature Tamax, the lowest air supply temperature Tamin, and the preset second temperature deviation value ⁇ Ta recorded in the third preset time period n2T.
  • ⁇ Ta it is judged that the air supply temperature sensor of the new fan has not failed.
  • the air supply temperature sensor of the new fan does not fail, the air supply temperature of the new fan is obtained, and the obtained air supply temperature is taken as a new return air temperature, and the new fan is controlled to run again, thereby improving the user's air conditioner. Use experience.
  • the method further includes:
  • the new fan when the difference between the highest supply air temperature Tamax and the lowest supply air temperature Tamin is greater than or When it is equal to the preset second temperature deviation value ⁇ Ta, that is, when
  • the step S40 further includes:
  • step S50 when the new fan runs again for the fourth preset time period, it is determined whether the air supply temperature sensor of the new fan has a fault until the air supply temperature reaches the indoor set temperature.
  • the fourth preset duration and the indoor set temperature can be set according to actual conditions.
  • the fourth preset duration is 1 hour to 2 hours, and the indoor setting is The temperature is from 25 ° C to 27 ° C.
  • the fourth preset duration is 1 hour, and the indoor set temperature is 26 ° C.
  • the new fan control method in this embodiment when the new fan is again When the running time reaches 1 hour, it is determined whether the air supply temperature sensor of the new fan is faulty until the air supply temperature reaches the indoor set temperature, that is, when the air supply temperature of the new fan reaches the indoor set temperature of 26 ° C, Then, it can stop judging whether the air supply temperature sensor of the new fan is faulty. That is, the new fan control method of the embodiment, when the new fan runs again, the operating time is up to 1 hour, and the fault condition of the air supply temperature sensor of the new fan is judged once until the air supply temperature reaches the indoor setting. The temperature can ensure that the supply air temperature sensor is working normally when the new fan is running again, thus ensuring the safety performance of the new fan when it is running again, and improving the user experience of the air conditioner.
  • the present invention also provides a non-transitory computer readable storage medium having stored thereon a computer program that, when executed by a processor, implements the new fan control method described above.
  • the present invention also provides a new fan including an air inlet passage and an exhaust passage, and a heat exchanger disposed on the air inlet passage, the exhaust passage discharging the indoor air to the outdoor, the air inlet passage The outdoor air is blown into the room after passing through the heat exchange of the heat exchanger.
  • the new fan further includes a control device for controlling the operation of the new fan, and the control device 100 includes a return air temperature fault detecting module 101 , a supply air temperature fault detecting module 102 , and a control module 103 .
  • the return air temperature fault detecting module 101 is configured to determine whether a return air temperature sensor of the new fan is faulty when the new fan is in normal operation;
  • the control device of the new fan provided by the embodiment of the invention is mainly applied to the control system of the air conditioner new fan, and is used for Solve the problem that when the return air temperature sensor of the new fan fails, the new fan can not run again, which affects the user's experience of using the air conditioner.
  • a return air temperature sensor is provided at the air return opening of the air conditioner fresh air blower (that is, at the passage opening of the air exhaust passage of the new air blower), and the air supply port of the new air blower (that is, the air supply passage of the new air blower)
  • the temperature of the fresh air return air outlet is detected by the return air temperature sensor
  • the temperature of the fresh air blower is detected by the air supply temperature sensor
  • the return air temperature of the new air blower is detected.
  • the operation of the new fan is controlled to control the indoor temperature.
  • the air conditioner uses the target temperature set by the user (for example, 26 ° C) as the final temperature control target, and achieves the control by controlling the frequency of the compressor or the speed of the fan motor in the new fan.
  • the indoor temperature is controlled so that the indoor temperature finally reaches the target temperature (26 ° C) set by the user.
  • the indoor temperature is obtained by the return air temperature sensor at the return air inlet of the new fan (that is, at the passage opening of the fresh air exhaust passage), that is, the current return air temperature at the return air outlet of the new fan is taken as Current indoor air temperature.
  • the control device of the new fan provided by the embodiment of the present invention is firstly when the new fan is in normal operation, The return air temperature fault detecting module 101 determines whether a return air temperature sensor at the air return port of the new fan has a fault.
  • the air supply temperature fault detecting module 102 is configured to determine whether a air supply temperature sensor of the new fan is faulty
  • the control module 103 is configured to: when the return air temperature sensor fails, close the internal valve corresponding to the new fan, the fan motor keeps running; and when the air supply temperature sensor of the new fan does not fail, acquire the new fan The wind temperature, and the obtained supply air temperature is taken as the new return air temperature, and the new fan is controlled to run again.
  • the control module 103 closes the internal valve corresponding to the new air blower (ie, controls) The new fan stops the refrigerant circulation), while controlling the fan motor in the new fan to keep running. It should be noted that, in this embodiment, when the return air temperature fault detecting module 101 determines that the return air temperature sensor is faulty, although the new air blower does not have the function of cooling and heating, the control module 103 controls the new fan. The outdoor air can still be blown indoors to improve the indoor air quality.
  • the control module 103 controls the fan motor of the new fan.
  • the air supply temperature failure detecting module 102 determines whether the air supply temperature sensor of the new fan is faulty, and the control module 103 determines whether to obtain the air supply temperature of the new fan according to the determination result, in this embodiment.
  • the control module 103 acquires the air supply temperature of the new air blower, and takes the acquired air supply temperature as a new one. Return air temperature, control the new fan to run again.
  • the control device of the new fan in the embodiment of the present invention firstly, when the new fan is in normal operation, the return air temperature fault detecting module 101 determines whether the return air temperature sensor of the new fan is faulty; then, when the return air temperature sensor appears When the fault occurs, the control module 103 closes the internal valve corresponding to the new fan, and the fan motor keeps running; then, the supply air temperature fault detecting module 102 determines whether the air supply temperature sensor of the new fan is faulty; finally, when When the supply air temperature fault detecting module 102 determines that the air supply temperature sensor of the new air blower has not failed, the control module 103 acquires the air supply temperature of the new air blower, and controls the obtained air supply temperature as a new return air temperature. The new fan is running again.
  • the control device of the new fan of the embodiment of the invention solves the problem that the new fan cannot run again when the return air temperature sensor of the new fan fails, and improves the user experience of the air conditioner.
  • the return air temperature fault detecting module 101 includes:
  • the return air temperature detecting unit 1011 is configured to: when the new fan is in normal operation, detect the return air temperature of the new fan according to the first preset detection period; and record the first preset time period according to the detected return air temperature of the new fan The maximum return air temperature and the minimum return air temperature of the new fan;
  • the return air temperature fault determining unit 1012 is configured to determine whether a difference between the highest return air temperature and the lowest return air temperature is greater than or equal to a preset first temperature deviation value; when the highest return air temperature is the lowest When the difference of the return air temperature is greater than or equal to the preset temperature deviation value, it is determined that the return air temperature sensor is faulty, and the fault alarm information of the return air temperature sensor is sent.
  • whether the return air temperature sensor is faulty is detected by detecting whether the return air temperature sensor of the new fan is open or short; in another embodiment, the return of the new fan can be Whether the wind temperature sensor has a judgment of the temperature detecting function, and further determines whether the return air temperature sensor has a fault. For example, when the return air temperature sensor does not detect the temperature, it is determined that the return air temperature sensor has a fault.
  • the return air temperature detecting unit 1011 detects the return air temperature of the new fan every the detection period T, thereby obtaining the current return air temperature of the new fan.
  • the first preset detection period T, the first preset duration nT, and the first temperature deviation value ⁇ T1 may be set according to actual conditions.
  • the first preset detection period T is 10 seconds to 15 seconds
  • the first preset time period nT is 2 minutes to 3 minutes
  • the first temperature deviation value ⁇ T1 is 1.5 ° C to 2 °C.
  • the first preset detection period T is 10 seconds
  • the first preset duration nT is 2 minutes
  • the first temperature deviation value ⁇ T1 is 1.5° C.
  • the return air temperature detecting unit 1011 detects the return air temperature of the new air blower every 10 seconds, and records according to the return air temperature of the new air blower detected by the return air temperature sensor.
  • the return air temperature failure determining unit 1012 is based on the highest return air temperature T1max and the lowest return air temperature T1min recorded in the first preset time period nT recorded by the return air temperature detecting unit 1011. And the preset first temperature deviation value ⁇ T1, determining that the return air temperature sensor of the new fan is faulty; when
  • the air supply temperature failure detecting module 102 includes:
  • the air supply temperature detecting unit 1021 is configured to: when the fan motor runs for a second preset duration, detect a current air supply temperature of the new fan according to the second preset detection period, and record a new fan in the third preset time period Maximum supply air temperature and minimum return air temperature;
  • the air supply temperature failure determining unit 1022 is configured to determine whether a difference between the highest air supply temperature and the lowest air supply temperature is less than a preset second temperature deviation value; when the highest air supply temperature is the lowest When the difference of the wind temperature is less than the preset second temperature deviation value, it is judged that the supply air temperature sensor has not failed.
  • whether the air supply temperature sensor is faulty is detected by detecting whether the air supply temperature sensor of the new fan is open or shorted; in another embodiment, the new air blower can be sent. Whether the wind temperature sensor has a judgment of the temperature detecting function, and further determines whether the air supply temperature sensor has a fault. For example, when the air temperature sensor does not detect the temperature, it is determined that the air supply temperature sensor has a fault.
  • the supply air temperature detecting unit 1021 detects the supply air temperature of the new fan every second detection period T2, thereby obtaining the current supply air temperature of the new fan.
  • the second preset detection period T2, the second preset duration mT, the third preset duration n2T, and the second temperature deviation value ⁇ Ta may be set according to actual conditions.
  • the second preset detection period T2 is 10 seconds to 15 seconds
  • the second preset duration mT is 2 minutes to 3 minutes
  • the third preset duration n2T is also 2 minutes to
  • the second temperature deviation value ⁇ Ta is 1.5 ° C to 2 ° C for 3 minutes.
  • the second preset detection period T2 is 10 seconds, and the The second preset duration mT is 3 minutes, the third preset duration n2T is 2 minutes, and the second temperature deviation value ⁇ Ta is 1.5 ° C.
  • the following is taken as an example for detailed description:
  • the supply air temperature detecting unit 1021 detects every 10 seconds (ie, the second preset detection period T2).
  • the supply air temperature of the new fan is once, and the highest supply air temperature Tamax and the minimum supply air temperature Tamin of the new fan in 2 minutes (ie, the third preset time period n2T) are recorded; then, the supply air temperature failure judgment unit 1022: determining whether the difference between the highest supply air temperature Tamax and the lowest supply air temperature Tamin is less than a preset second temperature deviation value ⁇ Ta, that is, determining
  • the control device of the new fan of the present embodiment is based on the highest air supply temperature Tamax, the lowest air supply temperature Tamin, and the preset second temperature deviation recorded in the third preset time period n2T recorded by the air supply temperature detecting unit 1021.
  • the value ⁇ Ta the supply air temperature failure determining unit 1022 determines that the air supply temperature sensor of the new fan has a failure, and when
  • the air supply temperature sensor of the new fan When the air supply temperature sensor of the new fan does not fail, the air supply temperature of the new fan is obtained, and the obtained air supply temperature is taken as a new return air temperature, and the new fan is controlled to run again, thereby improving the user's air conditioner. Use experience.
  • the air supply temperature fault determining unit 1022 in the control device of the new fan of the embodiment is further configured to: when the difference between the highest air supply temperature and the lowest air supply temperature is greater than or equal to a preset second When the temperature deviation value is determined, it is judged that the air supply temperature sensor also fails, and the fault alarm information of the air supply temperature sensor is issued to control the new fan to stop running.
  • the supply air temperature failure determining unit 1022 may determine that the supply air temperature sensor also fails, and issue a failure alarm message of the return air temperature sensor to control the new fan to stop running. That is, the control device of the new fan of the present embodiment can operate the new fan again before determining that the air supply temperature sensor of the new fan is faulty, thereby improving the user experience of the air conditioner.
  • the air supply temperature failure determining unit 1022 is further configured to: when the new fan runs again for the fourth preset time period, re-determine whether the air supply temperature sensor of the new fan appears Failure until the supply air temperature reaches the indoor set temperature.
  • the fourth preset duration and the indoor set temperature may be set according to actual conditions.
  • the fourth preset duration is 1 hour to 2 hours.
  • Indoor set temperature is 25 ° C to 27 ° C.
  • the fourth preset duration is 1 hour, and the indoor set temperature is 26 ° C.
  • the control device of the new fan in this embodiment is a new fan.
  • the air supply temperature failure determining unit 1022 re-determines whether the air supply temperature sensor of the new fan has a fault until the air supply temperature reaches the indoor set temperature, that is, when the air supply temperature of the new fan is reached.
  • the supply air temperature failure determining unit 1022 can stop the determination of whether or not the blower temperature sensor of the new fan is malfunctioning. That is, in the control device of the new fan of the present embodiment, when the new fan is operated again, the air supply temperature failure determining unit 1022 judges the fault condition of the air supply temperature sensor of the new fan every time the running time reaches 1 hour. Until the air supply temperature reaches the indoor set temperature, the air supply temperature sensor can be operated normally when the new fan is operated again, thereby ensuring the safety performance of the new fan when it is operated again, and improving the user's use of the air conditioner. Experience.
  • a "computer-readable medium” can be any apparatus that can contain, store, communicate, propagate, or transport a program for use in an instruction execution system, apparatus, or device, or in conjunction with the instruction execution system, apparatus, or device.
  • computer readable media include the following: electrical connections (electronic devices) having one or more wires, portable computer disk cartridges (magnetic devices), random access memory (RAM), Read only memory (ROM), erasable editable read only memory (EPROM or flash memory), fiber optic devices, and portable compact disk read only memory (CDROM).
  • the computer readable medium may even be a paper or other suitable medium on which the program can be printed, as it may be optically scanned, for example by paper or other medium, followed by editing, interpretation or, if appropriate, other suitable The method is processed to obtain the program electronically and then stored in computer memory.
  • portions of the invention may be implemented in hardware, software, firmware or a combination thereof.
  • multiple steps or methods may be implemented in software or firmware stored in a memory and executed by a suitable instruction execution system.
  • a suitable instruction execution system For example, if implemented in hardware and in another embodiment, it can be implemented by any one or combination of the following techniques well known in the art: discrete with logic gates for implementing logic functions on data signals Logic circuits, application specific integrated circuits with suitable combinational logic gates, programmable gate arrays (PGAs), field programmable gate arrays (FPGAs), and the like.

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Abstract

一种空调器新风机及新风机控制方法，该控制方法包括以下步骤：当新风机正常运行时，判断新风机的回风温度传感器是否出现故障；当回风温度传感器出现故障时，关闭新风机对应的内机阀，风扇电机保持运行；判断新风机的送风温度传感器是否出现故障；当新风机的送风温度传感器未出现故障时，获取新风机的送风温度，并将所获取的送风温度作为新的回风温度，控制新风机再次运行。该控制方法解决了当新风机的回风温度传感器出现故障时新风机不能再次运行的问题，从而改善了用户对空调器的使用体验。

Description

新风机控制方法及新风机 技术领域
本发明涉及空调器领域，尤其涉及一种新风机控制方法及新风机。
背景技术
温度传感器广泛应用于家电产品中(如空调器)，以空调器新风机中的温度传感器为例，除了室内机上常见的回风温度传感器和盘管温度传感器外，还有送风温度传感器。然而，温度传感器应用较多的场合，机器出现故障的概率也较高，常见的故障如温度传感器短路、断路及温度漂移等。现有技术中，当空调器的相应温度传感器出现故障时，通常是让空调器发出故障报警信息，以提示用户相应的温度传感器发生了故障，并且，在排除温度传感器的故障前，空调器不能再次开启运行，从而影响了用户对空调器的使用体验。
发明内容
本发明的主要目的在于提供一种新风机控制方法，旨在解决当新风机的回风温度传感器出现故障时新风机不能再次运行的问题。
为了实现上述目的，本发明提供一种新风机控制方法，所述新风机控制方法包括以下步骤：
当新风机正常运行时，判断新风机的回风温度传感器是否出现故障；
当回风温度传感器出现故障时，关闭新风机对应的内机阀，风扇电机保持运行；
判断新风机的送风温度传感器是否出现故障；
当新风机的送风温度传感器未出现故障时，获取新风机的送风温度，并将所获取的送风温度作为新的回风温度，控制新风机再次运行。
优选地，所述当新风机正常运行时，判断新风机的回风温度传感器是否出现故障包括以下步骤：
当新风机正常运行时，按第一预设检测周期检测新风机的回风温度；
根据检测到的新风机的回风温度，记录第一预设时长内新风机的最高回风温度和最低回风温度；
判断所述最高回风温度与所述最低回风温度的差值是否大于等于预设的第一温度偏差值；
当所述最高回风温度与所述最低回风温度的差值大于等于预设的温度偏差值时，判断所述回风温度传感器出现故障，并发出回风温度传感器的故障报警信息。
优选地，所述判断新风机的送风温度传感器是否出现故障包括：
当所述风扇电机运行第二预设时长时，按照第二预设检测周期检测新风机的当前送风温度，并记录第三预设时长内新风机的最高送风温度和最低送回风温度；
判断所述最高送风温度与所述最低送风温度的差值是否小于预设的第二温度偏差值；
当所述最高送风温度与所述最低送风温度的差值小于预设的第二温度偏差值时，判断所述送风温度传感器未出现故障。
优选地，所述判断所述最高送风温度与所述最低送风温度的差值是否小于预设的第二温度偏差值的步骤之后还包括：
当所述最高送风温度与所述最低送风温度的差值大于或等于预设的第二温度偏差值时，判断所述送风温度传感器也出现故障，发出送风温度传感器的故障报警信息，控制所述新风机停止运行。
优选地，所述将所获取的送风温度作为新的回风温度，控制新风机再次运行之后还包括：
当新风机再次运行达到第四预设时长时，重新判断新风机的送风温度传感器是否出现故障，直到所述送风温度达到室内设定温度。
另外，为实现上述目的，本发明还提供一种非临时性计算机可读存储介质，其上存储有计算机程序，该程序被处理器执行时实现上述的新风机控制方法。
此外，为实现上述目的，本发明还提供一种新风机，包括进风通道及排风通道、以及设置在进风通道上的换热器，所述排风通道将室内的空气排出室外，所述进风通道将室外的空气经过换热器的换热后，吹向室内；所述新风机还包括控制新风机的控制装置，而且所述控制装置包括：
回风温度故障检测模块：用于当新风机正常运行时，判断新风机的回风温度传感器是否出现故障；
送风温度故障检测模块：用于判断新风机的送风温度传感器是否出现故障；
控制模块：用于当回风温度传感器出现故障时，关闭新风机对应的内机阀，风扇电机保持运行；以及当新风机的送风温度传感器未出现故障时，获取新风机的送风温度，并将所获取的送风温度作为新的回风温度，控制新风机再次运行。
优选地，所述回风温度故障检测模块包括：
回风温度检测单元：用于当新风机正常运行时，按照第一预设检测周期检测新风机的回风温度；并根据检测到的新风机的回风温度，记录第一预设时长内新风机的最高回风温 度和最低回风温度；
回风温度故障判断单元：用于判断所述最高回风温度与所述最低回风温度的差值是否大于等于预设的第一温度偏差值；当所述最高回风温度与所述最低回风温度的差值大于等于预设的温度偏差值时，判断所述回风温度传感器出现故障，并发出回风温度传感器的故障报警信息。
优选地，所述送风温度故障检测模块包括：
送风温度检测单元：用于当所述风扇电机运行第二预设时长时，按照第二预设检测周期检测新风机的当前送风温度，并记录第三预设时长内新风机的最高送风温度和最低送回风温度；
送风温度故障判断单元：用于判断所述最高送风温度与所述最低送风温度的差值是否小于预设的第二温度偏差值；当所述最高送风温度与所述最低送风温度的差值小于预设的第二温度偏差值时，判断所述送风温度传感器未出现故障。
优选地，所述送风温度故障判断单元还用于：
当所述最高送风温度与所述最低送风温度的差值大于或等于预设的第二温度偏差值时，判断所述送风温度传感器也出现故障，发出送风温度传感器的故障报警信息，控制所述新风机停止运行。
优选地，所述送风温度故障判断单元还用于：当新风机再次运行达到第四预设时长时，重新判断新风机的送风温度传感器是否出现故障，直到所述送风温度达到室内设定温度。
本发明提供一种新风机控制方法，该新风机控制方法包括：当新风机正常运行时，判断新风机的回风温度传感器是否出现故障；当回风温度传感器出现故障时，关闭新风机对应的内机阀，风扇电机保持运行；判断新风机的送风温度传感器是否出现故障；当新风机的送风温度传感器未出现故障时，获取新风机的送风温度，并将所获取的送风温度作为新的回风温度，控制新风机再次运行。本发明新风机控制方法，解决了当新风机的回风温度传感器出现故障时新风机不能再次运行的问题，改善了用户对空调器的使用体验。
附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图示出的结构获得其他的附图。
图1为本发明新风机控制方法第一实施例的流程示意图；
图2为本发明新风机控制方法第二实施例的流程示意图；
图3为本发明新风机控制方法第三实施例的流程示意图；
图4为本发明新风机控制方法第四实施例的流程示意图；
图5为本发明新风机控制方法第五实施例的流程示意图；
图6为本发明新风机的控制装置第一实施例的功能模块示意图；
图7为本发明新风机的控制装置第二实施例中回风温度故障检测模块的细化功能模块示意图；
图8为本发明新风机的控制装置第三实施例中送风温度故障检测模块的细化功能模块示意图。
本发明目的的实现、功能特点及优点将结合实施例，参照附图做进一步说明。
具体实施方式
应当理解，此处所描述的具体实施例仅仅用以解释本发明，并不用于限定本发明。
本发明提供一种新风机控制方法，参照图1，在一实施例中，该新风机控制方法包括：
步骤S10，当新风机正常运行时，判断新风机的回风温度传感器是否出现故障；
本发明实施例提供的新风机控制方法主要应用在空调器新风机的控制系统中，用于解决当新风机的回风温度传感器出现故障时新风机不能再次运行而影响用户对空调器的使用体验问题。在空调器系统中，空调器的新风机包括进风通道及排风通道、以及设置在进风通道上的换热器，所述排风通道将室内的空气排出室外，所述进风通道将室外的空气经过换热器的换热后，吹向室内。并且，在空调器新风机的回风口处(即新风机的排风通道的通道口处)设有回风温度传感器，在新风机的送风口(即新风机的送风通道的通道口处)处设有送风温度传感器，通过回风温度传感器对新风机回风口处的温度进行检测，通过送风温度传感器对新风机送风口处的温度进行检测，将新风机的回风温度作为新风机的温度控制参数，控制新风机的运行，实现对室内温度的控制。具体地，空调器运行时，空调器以用户设定的目标温度(如26℃)作为最终的温度控制目标，通过控制压缩机的频率或\和控制新风机里的风扇电机的转速来实现对室内温度的控制，使室内温度最终达到用户所设定的目标温度(26℃)。另外，需要说明的是，室内温度是通过新风机回风口处(也即新风机排风通道的通道口处)的回风温度传感器来获取的，即将新风机回风口处的当前回风温度作为当前的室内空气温度。
在本实施例中，为了解决当新风机的回风温度传感器出现故障时新风机不能再次运行的问题，本发明实施例提供的该新风机控制方法，首先是当新风机正常运行时，判断新风 机的回风口处的回风温度传感器是否出现故障。
步骤S20，当回风温度传感器出现故障时，关闭新风机对应的内机阀，风扇电机保持运行；
具体地，当新风机正常运行时，在判断到新风机的回风温度传感器出现故障时，关闭新风机对应的内机阀(即控制新风机停止冷媒循环)，同时控制新风机里的风扇电机继续保持运行。需要说明的是，在本实施例中，当回风温度传感器出现故障时，虽然新风机不具制冷制热的功能，但是新风机仍能够将室外的空气吹至室内，从而改善室内的空气质量。
步骤S30，判断新风机的送风温度传感器是否出现故障；
步骤S40，当新风机的送风温度传感器未出现故障时，获取新风机的送风温度，并将所获取的送风温度作为新的回风温度，控制新风机再次运行。
具体地，在本实施例中，当回风温度传感器出现故障时，虽然关闭了新风机对应的内机阀，但是新风机的风扇电机仍在继续运行，此时判断新风机的送风温度传感器是否出现故障，根据判断结果决定是否获取新风机的送风温度，在本实施例中，当判断到新风机的送风温度传感器未出现故障时，获取新风机的送风温度，并将所获取的送风温度作为新的回风温度，控制新风机再次运行。
本发明实施例新风机控制方法，首先，当新风机正常运行时，判断新风机的回风温度传感器是否出现故障；接着，当回风温度传感器出现故障时，关闭新风机对应的内机阀，风扇电机保持运行；然后，判断新风机的送风温度传感器是否出现故障；最后，当新风机的送风温度传感器未出现故障时，获取新风机的送风温度，并将所获取的送风温度作为新的回风温度，控制新风机再次运行。本发明实施例新风机控制方法解决了当新风机的回风温度传感器出现故障时新风机不能再次运行的问题，改善了用户对空调器的使用体验。
进一步地，参照图2，基于本发明新风机控制方法第一实施例，在本发明新风机控制方法第二实施例中，上述步骤S10包括：
步骤S11，当新风机正常运行时，按预设检测周期检测新风机的回风温度；
步骤S12，根据检测到的新风机的回风温度，记录第一预设时长内新风机的最高回风温度和最低回风温度；
步骤S13，判断所述最高回风温度与所述最低回风温度的差值是否大于等于预设的第一温度偏差值；
步骤S14，当所述最高回风温度与所述最低回风温度的差值大于等于预设的温度偏差值时，判断所述回风温度传感器出现故障，并发出回风温度传感器的故障报警信息。
可以理解的是，在一实施例中，通过检测新风机的回风温度传感器是否断路或短路来 判断该回风温度传感器是否出现了故障；在另一实施例中，可以通过对新风机的回风温度传感器是否具有温度检测功能的判断，进而判断该回风温度传感器是否出现了故障，例如，当回风温度传感器检测不到温度了，则判断该回风温度传感器出现了故障。
具体地，本实施例新风机控制方法每隔所述检测周期T检测新风机的回风温度，从而获得新风机的当前回风温度。上述第一预设检测周期T、第一预设时长nT以及第一温度偏差值ΔT1，可以根据实际情况进行设定。在本实施例中，所述第一预设检测周期T为10秒至15秒、所述第一预设时长nT为2分钟至3分钟，所述第一温度偏差值ΔT1为1.5℃至2℃。优选地，本实施例中，所述第一预设检测周期T为10秒，所述第一预设时长nT为2分钟，所述第一温度偏差值ΔT1为1.5℃，下面以此为例进行详细说明：
例如，当新风机正常运行时，首先，新风机回风口处的回风温度传感器每隔10秒检测一次新风机的回风温度；然后，根据回风温度传感器检测到的新风机的回风温度，记录2分钟内新风机的最高回风温度T1max和最低回风温度T1min；接着，判断记录的所述最高回风温度T1max与所述最低回风温度T1min的差值是否大于等于预设的第一温度偏差值ΔT1，即判断|T1max-T1min|≥ΔT1(也即判断|T1max-T1min|≥1.5℃)；当判断到所述最高回风温度T1max与所述最低回风温度T1min的差值大于等于1.5℃时，进而可以判断新风机的回风口处的所述回风温度传感器出现了故障，同时，发出回风温度传感器的故障报警信息，以提示用户新风机的回风温度传感器出现了故障。
本实施例新风机控制方法根据第一预设时长nT内所记录的最高回风温度T1max、最低回风温度T1min以及预设的第一温度偏差值ΔT1，判断新风机的回风温度传感器出现故障，当|T1max-T1min|≥ΔT1时，判断新风机的回风温度传感器出现了故障，并发出回风温度传感器的故障报警信息。当回风温度传感器出现故障时，关闭新风机对应的内机阀，让新风机内的风扇电机继续保持运行；接着判断新风机的送风温度传感器是否出现故障；当新风机的送风温度传感器未出现故障时，获取新风机的送风温度，并将所获取的送风温度作为新的回风温度，控制新风机再次运行，从而改善了用户对空调器的使用体验。
进一步地，参照图3，基于本发明新风机控制方法第一实施例，在本发明新风机控制方法第三实施例中，上述步骤S30包括：
步骤S31，当所述风扇电机运行第二预设时长时，按照第二预设检测周期检测新风机的当前送风温度，并记录所述第三预设时长内新风机的最高送风温度和最低送回风温度；
步骤S32，判断所述最高送风温度与所述最低送风温度的差值是否小于预设的第二温度偏差值；
步骤S33，当所述最高送风温度与所述最低送风温度的差值小于预设的第二温度偏差值 时，判断所述送风温度传感器未出现故障。
可以理解的是，在一实施例中，通过检测新风机的送风温度传感器是否断路或短路来判断该送风温度传感器是否出现了故障；在另一实施例中，可以通过对新风机的送风温度传感器是否具有温度检测功能的判断，进而判断该送风温度传感器是否出现了故障，例如，当送风温度传感器检测不到温度了，则判断该送风温度传感器出现了故障。
具体地，本实施例新风机控制方法每隔所述第二检测周期T2检测新风机的送风温度，从而获得新风机的当前送风温度。上述第二预设检测周期T2、第二预设时长mT、第三预设时长n2T以及第二温度偏差值ΔTa，可以根据实际情况进行设定。在本实施例中，所述第二预设检测周期T2为10秒至15秒、所述第二预设时长mT为2分钟至3分钟、所述第三预设时长n2T也为2分钟至3分钟，所述第二温度偏差值ΔTa为1.5℃至2℃。优选地，本实施例中，所述第二预设检测周期T2为10秒，所述第二预设时长mT为3分钟，所述第三预设时长n2T为2分钟，所述第二温度偏差值ΔTa为1.5℃，下面以此为例进行详细说明：
例如，当新风机中的风扇电机运行3分钟(即所述第二预设时长mT)时，新风机送风口处的送风温度传感器每隔10秒(即所述第二预设检测周期T2)检测一次新风机的送风温度，并记录2分钟(即所述第三预设时长n2T)内新风机的的最高送风温度Tamax和最低送风温度Tamin；接着，判断所述最高送风温度Tamax与所述最低送风温度Tamin的差值是否小于预设的第二温度偏差值ΔTa，即判断|Tamax-Tamin|<ΔTa(也即判断|Tamax-Tamin|<1.5℃)；当判断到所述最高送风温度Tamax与所述最低送风温度Tamin的差值小于1.5℃时，进而可以判断新风机的送风口处的所述送风温度传感器未出现故障。
本实施例新风机控制方法根据第三预设时长n2T内所记录的最高送风温度Tamax、最低送风温度Tamin以及预设的第二温度偏差值ΔTa，判断新风机的送风温度传感器出现故障，当|Tamax-Tamin|<ΔTa时，则判断新风机的送风温度传感器未出现故障。当新风机的送风温度传感器未出现故障时，获取新风机的送风温度，并将所获取的送风温度作为新的回风温度，控制新风机再次运行，从而改善了用户对空调器的使用体验。
进一步地，参照图4，基于本发明新风机控制方法第三实施例，在本发明新风机控制方法第四实施例中，上述步骤S33之后还包括：
S34，当所述最高送风温度与所述最低送风温度的差值大于或等于预设的第二温度偏差值时，判断所述送风温度传感器也出现故障，并发出送风温度传感器的故障报警信息，控制所述新风机停止运行。
在本实施例中，当所述最高送风温度Tamax与所述最低送风温度Tamin的差值大于或 等于预设的第二温度偏差值ΔTa时，即当|Tamax-Tamin|≥ΔTa时，则判断所述送风温度传感器也出现故障，并发出回风温度传感器的故障报警信息，控制所述新风机停止运行。即本实施例新风机控制方法，在判断到新风机的送风温度传感器出现故障之前，新风机都是可以再次运行的，从而改善了用户对空调器的使用体验。
进一步地，参照图5，基于本发明新风机控制方法上述各实施例中的任一实施例，在本发明新风机控制方法的第五实施例中，上述步骤S40之后还包括：
步骤S50，当新风机再次运行达到第四预设时长时，重新判断新风机的送风温度传感器是否出现故障，直到所述送风温度达到室内设定温度。
。
可以理解的是，所述第四预设时长和所述室内设定温度可以根据实际情况进行设置，本实施例中，所述第四预设时长为1小时至2小时，所述室内设定温度为25℃至27℃。优选地，本实施例中，所述第四预设时长为1小时，所述室内设定温度为26℃，下面以此为例进行详细说明：本实施例新风机控制方法，当新风机再次运行时间达到1小时时，重新判断新风机的送风温度传感器是否出现故障，直到所述送风温度达到室内设定温度，即当新风机的送风温度达到了室内设定温度26℃时，则可以停止判断新风机的送风温度传感器是否出现故障。即本实施例新风机控制方法，当新风机再次运行时，运行时间每达到1小时时，就对新风机的送风温度传感器的故障情况进行一次判断，直到所述送风温度达到室内设定温度，从而可以保证新风机再次运行时其送风温度传感器是正常工作的，从而保证了新风机再次运行时的安全性能，改善了用户对空调器的使用体验。
另外，本发明还提供一种非临时性计算机可读存储介质，其上存储有计算机程序，该程序被处理器执行时实现上述的新风机控制方法。
本发明还提供一种新风机，该新风机包括进风通道及排风通道、以及设置在进风通道上的换热器，所述排风通道将室内的空气排出室外，所述进风通道将室外的空气经过换热器的换热后，吹向室内。参照图6，在一实施例中，所述新风机还包括控制新风机工作的控制装置，所述控制装置100包括回风温度故障检测模块101、送风温度故障检测模块102及控制模块103。
具体地，所述回风温度故障检测模块101，用于当新风机正常运行时，判断新风机的回风温度传感器是否出现故障；
本发明实施例提供的新风机的控制装置主要应用在空调器新风机的控制系统中，用于 解决当新风机的回风温度传感器出现故障时新风机不能再次运行而影响用户对空调器的使用体验问题。在空调器系统中，空调器新风机的回风口处(即新风机的排风通道的通道口处)设有回风温度传感器，在新风机的送风口(即新风机的送风通道的通道口处)处设有送风温度传感器，通过回风温度传感器对新风机回风口处的温度进行检测，通过送风温度传感器对新风机送风口处的温度进行检测，将新风机的回风温度作为新风机的温度控制参数，控制新风机的运行，实现对室内温度的控制。具体地，空调器运行时，空调器以用户设定的目标温度(如26℃)作为最终的温度控制目标，通过控制压缩机的频率或\和控制新风机里的风扇电机的转速来实现对室内温度的控制，使室内温度最终达到用户所设定的目标温度(26℃)。另外，需要说明的是，室内温度是通过新风机回风口处(也即新风机排风通道的通道口处)的回风温度传感器来获取的，即将新风机回风口处的当前回风温度作为当前的室内空气温度。
在本实施例中，为了解决当新风机的回风温度传感器出现故障时新风机不能再次运行的问题，本发明实施例提供的该新风机的控制装置，首先是当新风机正常运行时，由所述回风温度故障检测模块101判断新风机的回风口处的回风温度传感器是否出现故障。
所述送风温度故障检测模块102，用于判断新风机的送风温度传感器是否出现故障；
所述控制模块103：用于当回风温度传感器出现故障时，关闭新风机对应的内机阀，风扇电机保持运行；以及当新风机的送风温度传感器未出现故障时，获取新风机的送风温度，并将所获取的送风温度作为新的回风温度，控制新风机再次运行。
具体地，当新风机正常运行时，在所述回风温度故障检测模块101判断到新风机的回风温度传感器出现故障时，则所述控制模块103关闭新风机对应的内机阀(即控制新风机停止冷媒循环)，同时控制新风机里的风扇电机继续保持运行。需要说明的是，在本实施例中，当所述回风温度故障检测模块101判断到回风温度传感器出现故障时，虽然新风机不具制冷制热的功能，但是所述控制模块103控制新风机仍能够将室外的空气吹至室内，从而改善室内的空气质量。在本实施例中，当所述回风温度故障检测模块101判断到回风温度传感器出现故障时，虽然关闭了新风机对应的内机阀，但是所述控制模块103控制新风机的风扇电机仍在继续运行，此时由所述送风温度故障检测模块102判断新风机的送风温度传感器是否出现故障，所述控制模块103根据判断结果决定是否获取新风机的送风温度，在本实施例中，当所述送风温度故障检测模块102判断到新风机的送风温度传感器未出现故障时，所述控制模块103获取新风机的送风温度，并将所获取的送风温度作为新的回风温度，控制新风机再次运行。
本发明实施例新风机的控制装置，首先，当新风机正常运行时，所述回风温度故障检测模块101判断新风机的回风温度传感器是否出现故障；然后，当回风温度传感器出现故 障时，所述控制模块103关闭新风机对应的内机阀，风扇电机保持运行；接着，所述送风温度故障检测模块102判断新风机的送风温度传感器是否出现故障；最后，当所述送风温度故障检测模块102判断到新风机的送风温度传感器未出现故障时，所述控制模块103获取新风机的送风温度，并将所获取的送风温度作为新的回风温度，控制新风机再次运行。本发明实施例新风机的控制装置解决了当新风机的回风温度传感器出现故障时新风机不能再次运行的问题，改善了用户对空调器的使用体验。
进一步地，参照图7，基于本发明新风机的控制装置第一实施例，在本发明新风机的控制装置的第二实施例中，所述回风温度故障检测模块101包括：
回风温度检测单元1011：用于当新风机正常运行时，按照第一预设检测周期检测新风机的回风温度；并根据检测到的新风机的回风温度，记录第一预设时长内新风机的最高回风温度和最低回风温度；
回风温度故障判断单元1012：用于判断所述最高回风温度与所述最低回风温度的差值是否大于等于预设的第一温度偏差值；当所述最高回风温度与所述最低回风温度的差值大于等于预设的温度偏差值时，判断所述回风温度传感器出现故障，并发出回风温度传感器的故障报警信息。
可以理解的是，在一实施例中，通过检测新风机的回风温度传感器是否断路或短路来判断该回风温度传感器是否出现了故障；在另一实施例中，可以通过对新风机的回风温度传感器是否具有温度检测功能的判断，进而判断该回风温度传感器是否出现了故障，例如，当回风温度传感器检测不到温度了，则判断该回风温度传感器出现了故障。
具体地，本实施例新风机的控制装置中，所述回风温度检测单元1011每隔所述检测周期T检测新风机的回风温度，从而获得新风机的当前回风温度。上述第一预设检测周期T、第一预设时长nT以及第一温度偏差值ΔT1，可以根据实际情况进行设定。在本实施例中，所述第一预设检测周期T为10秒至15秒、所述第一预设时长nT为2分钟至3分钟，所述第一温度偏差值ΔT1为1.5℃至2℃。优选地，本实施例中，所述第一预设检测周期T为10秒，所述第一预设时长nT为2分钟，所述第一温度偏差值ΔT1为1.5℃，下面以此为例进行详细说明：
例如，当新风机正常运行时，首先，所述回风温度检测单元1011每隔10秒检测一次新风机的回风温度，并根据回风温度传感器检测到的新风机的回风温度，记录2分钟内新风机的最高回风温度T1max和最低回风温度T1min；接着，所述回风温度故障判断单元1012判断记录的所述最高回风温度T1max与所述最低回风温度T1min的差值是否大于等于预设的第一温度偏差值ΔT1，即判断|T1max-T1min|≥ΔT1(也即判断|T1max-T1min|≥1.5℃)； 当所述最高回风温度T1max与所述最低回风温度T1min的差值大于等于1.5℃时，所述回风温度故障判断单元1012可以判断新风机的回风口处的所述回风温度传感器出现了故障，同时，所述回风温度故障判断单元1012发出回风温度传感器的故障报警信息，以提示用户新风机的回风温度传感器出现了故障。
本实施例新风机的控制装置，所述回风温度故障判断单元1012根据所述回风温度检测单元1011记录的第一预设时长nT内所记录的最高回风温度T1max、最低回风温度T1min以及预设的第一温度偏差值ΔT1，判断新风机的回风温度传感器出现故障；当|T1max-T1min|≥ΔT1时，所述回风温度判断单元1012判断新风机的回风温度传感器出现了故障，并发出回风温度传感器的故障报警信息。当回风温度传感器出现故障时，关闭新风机对应的内机阀，让新风机内的风扇电机继续保持运行；接着判断新风机的送风温度传感器是否出现故障；当新风机的送风温度传感器未出现故障时，获取新风机的送风温度，并将所获取的送风温度作为新的回风温度，控制新风机再次运行，从而改善了用户对空调器的使用体验。
进一步地，参照图8，基于本发明新风机的控制装置第一实施例，在本发明新风机的控制装置的第三实施例中，所述送风温度故障检测模块102包括：
送风温度检测单元1021：用于当所述风扇电机运行第二预设时长时，按照第二预设检测周期检测新风机的当前送风温度，并记录所述第三预设时长内新风机的最高送风温度和最低送回风温度；
送风温度故障判断单元1022：用于判断所述最高送风温度与所述最低送风温度的差值是否小于预设的第二温度偏差值；当所述最高送风温度与所述最低送风温度的差值小于预设的第二温度偏差值时，判断所述送风温度传感器未出现故障。
可以理解的是，在一实施例中，通过检测新风机的送风温度传感器是否断路或短路来判断该送风温度传感器是否出现了故障；在另一实施例中，可以通过对新风机的送风温度传感器是否具有温度检测功能的判断，进而判断该送风温度传感器是否出现了故障，例如，当送风温度传感器检测不到温度了，则判断该送风温度传感器出现了故障。
具体地，本实施例新风机的控制装置，所述送风温度检测单元1021每隔所述第二检测周期T2检测新风机的送风温度，从而获得新风机的当前送风温度。上述第二预设检测周期T2、第二预设时长mT、第三预设时长n2T以及第二温度偏差值ΔTa，可以根据实际情况进行设定。在本实施例中，所述第二预设检测周期T2为10秒至15秒、所述第二预设时长mT为2分钟至3分钟、所述第三预设时长n2T也为2分钟至3分钟，所述第二温度偏差值ΔTa为1.5℃至2℃。优选地，本实施例中，所述第二预设检测周期T2为10秒，所述第 二预设时长mT为3分钟，所述第三预设时长n2T为2分钟，所述第二温度偏差值ΔTa为1.5℃，下面以此为例进行详细说明：
例如，当新风机中的风扇电机运行3分钟(即所述第二预设时长mT)时，所述送风温度检测单元1021每隔10秒(即所述第二预设检测周期T2)检测一次新风机的送风温度，并记录2分钟(即所述第三预设时长n2T)内新风机的的最高送风温度Tamax和最低送风温度Tamin；接着，所述送风温度故障判断单元1022判断所述最高送风温度Tamax与所述最低送风温度Tamin的差值是否小于预设的第二温度偏差值ΔTa，即判断|Tamax-Tamin|<ΔTa(也即判断|Tamax-Tamin|<1.5℃)；当所述送风温度故障判断单元1022判断到所述最高送风温度Tamax与所述最低送风温度Tamin的差值小于1.5℃时，所述送风温度故障判断单元1022判断新风机的送风口处的所述送风温度传感器未出现故障。
本实施例新风机的控制装置，根据所述送风温度检测单元1021所记录的第三预设时长n2T内所记录的最高送风温度Tamax、最低送风温度Tamin以及预设的第二温度偏差值ΔTa，所述送风温度故障判断单元1022判断新风机的送风温度传感器出现故障，当|Tamax-Tamin|<ΔTa时，所述送风温度故障判断单元1022判断新风机的送风温度传感器未出现故障。当新风机的送风温度传感器未出现故障时，获取新风机的送风温度，并将所获取的送风温度作为新的回风温度，控制新风机再次运行，从而改善了用户对空调器的使用体验。
进一步地，本实施例新风机的控制装置中所述送风温度故障判断单元1022还用于：当所述最高送风温度与所述最低送风温度的差值大于或等于预设的第二温度偏差值时，判断所述送风温度传感器也出现故障，并发出送风温度传感器的故障报警信息，控制所述新风机停止运行。
具体地，在本实施例中，当所述判断到所述最高送风温度Tamax与所述最低送风温度Tamin的差值大于或等于预设的第二温度偏差值ΔTa时，即当|Tamax-Tamin|≥ΔTa时，则所述送风温度故障判断单元1022可以判断出所述送风温度传感器也出现故障，并发出回风温度传感器的故障报警信息，控制所述新风机停止运行。即本实施例新风机的控制装置，在判断到新风机的送风温度传感器出现故障之前，新风机都是可以再次运行的，从而改善了用户对空调器的使用体验。
进一步地，本实施例新风机的控制装置中，所述送风温度故障判断单元1022还用于：当新风机再次运行达到第四预设时长时，重新判断新风机的送风温度传感器是否出现故障，直到所述送风温度达到室内设定温度。
具体地，可以理解的是，所述第四预设时长和所述室内设定温度可以根据实际情况进行设置，本实施例中，所述第四预设时长为1小时至2小时，所述室内设定温度为25℃至 27℃。优选地，本实施例中，所述第四预设时长为1小时，所述室内设定温度为26℃，下面以此为例进行详细说明：本实施例新风机的控制装置，当新风机再次运行时间达到1小时时，所述送风温度故障判断单元1022重新判断新风机的送风温度传感器是否出现故障，直到所述送风温度达到室内设定温度，即当新风机的送风温度达到了室内设定温度26℃时，则所述送风温度故障判断单元1022可以停止对新风机的送风温度传感器是否出现故障的判断。即本实施例新风机的控制装置，当新风机再次运行时，运行时间每达到1小时时，所述送风温度故障判断单元1022就对新风机的送风温度传感器的故障情况进行一次判断，直到所述送风温度达到室内设定温度，从而可以保证新风机再次运行时其送风温度传感器是正常工作的，从而保证了新风机再次运行时的安全性能，改善了用户对空调器的使用体验。
以上仅为本发明的优选实施例，并非因此限制本发明的专利范围，凡是利用本发明说明书及附图内容所作的等效结构或等效流程变换，或直接或间接运用在其他相关的技术领域，均同理包括在本发明的专利保护范围内。
流程图中或在此以其他方式描述的任何过程或方法描述可以被理解为，表示包括一个或更多个用于实现定制逻辑功能或过程的步骤的可执行指令的代码的模块、片段或部分，并且本发明的优选实施方式的范围包括另外的实现，其中可以不按所示出或讨论的顺序，包括根据所涉及的功能按基本同时的方式或按相反的顺序，来执行功能，这应被本发明的实施例所属技术领域的技术人员所理解。
在流程图中表示或在此以其他方式描述的逻辑和/或步骤，例如，可以被认为是用于实现逻辑功能的可执行指令的定序列表，可以具体实现在任何计算机可读介质中，以供指令执行系统、装置或设备(如基于计算机的系统、包括处理器的系统或其他可以从指令执行系统、装置或设备取指令并执行指令的系统)使用，或结合这些指令执行系统、装置或设备而使用。就本说明书而言，"计算机可读介质"可以是任何可以包含、存储、通信、传播或传输程序以供指令执行系统、装置或设备或结合这些指令执行系统、装置或设备而使用的装置。计算机可读介质的更具体的示例(非穷尽性列表)包括以下：具有一个或多个布线的电连接部(电子装置)，便携式计算机盘盒(磁装置)，随机存取存储器(RAM)，只读存储器(ROM)，可擦除可编辑只读存储器(EPROM或闪速存储器)，光纤装置，以及便携式光盘只读存储器(CDROM)。另外，计算机可读介质甚至可以是可在其上打印所述程序的纸或其他合适的介质，因为可以例如通过对纸或其他介质进行光学扫描，接着进行编辑、解译或必要时以其他合适方式进行处理来以电子方式获得所述程序，然后将其存储在计算机存储器中。
应当理解，本发明的各部分可以用硬件、软件、固件或它们的组合来实现。在上述实施方式中，多个步骤或方法可以用存储在存储器中且由合适的指令执行系统执行的软件或固件来实现。如，如果用硬件来实现和在另一实施方式中一样，可用本领域公知的下列技术中的任一项或他们的组合来实现：具有用于对数据信号实现逻辑功能的逻辑门电路的离散逻辑电路，具有合适的组合逻辑门电路的专用集成电路，可编程门阵列(PGA)，现场可编程门阵列(FPGA)等。

Claims (11)

  1. 一种新风机控制方法，其特征在于，所述空调器新风机的控制方法包括以下步骤：
    当新风机正常运行时，判断新风机的回风温度传感器是否出现故障；
    当回风温度传感器出现故障时，关闭新风机对应的内机阀，风扇电机保持运行；
    判断新风机的送风温度传感器是否出现故障；
    当新风机的送风温度传感器未出现故障时，获取新风机的送风温度，并将所获取的送风温度作为新的回风温度，控制新风机再次运行。
  2. 如权利要求1所述的新风机控制方法，其特征在于，所述当新风机正常运行时，判断新风机的回风温度传感器是否出现故障包括以下步骤：
    当新风机正常运行时，按第一预设检测周期检测新风机的回风温度；
    根据检测到的新风机的回风温度，记录第一预设时长内新风机的最高回风温度和最低回风温度；
    判断所述最高回风温度与所述最低回风温度的差值是否大于等于预设的第一温度偏差值；
    当所述最高回风温度与所述最低回风温度的差值大于等于预设的温度偏差值时，判断所述回风温度传感器出现故障，并发出回风温度传感器的故障报警信息。
  3. 如权利要求1所述的新风机控制方法，其特征在于，所述判断新风机的送风温度传感器是否出现故障包括：
    当所述风扇电机运行第二预设时长时，按照第二预设检测周期检测新风机的当前送风温度，并记录第三预设时长内新风机的最高送风温度和最低送回风温度；
    判断所述最高送风温度与所述最低送风温度的差值是否小于预设的第二温度偏差值；
    当所述最高送风温度与所述最低送风温度的差值小于预设的第二温度偏差值时，判断所述送风温度传感器未出现故障。
  4. 如权利要求3所述的新风机控制方法，其特征在于，所述判断所述最高送风温度与所述最低送风温度的差值是否小于预设的第二温度偏差值的步骤之后还包括：
    当所述最高送风温度与所述最低送风温度的差值大于或等于预设的第二温度偏差值时，判断所述送风温度传感器也出现故障，并发出送风温度传感器的故障报警信息，控制所述新风机停止运行。
  5. 如权利要求1至4中任一项所述的新风机控制方法，其特征在于，所述将所获取的送风温度作为新的回风温度，控制新风机再次运行之后还包括：
    当新风机再次运行达到第四预设时长时，重新判断新风机的送风温度传感器是否出现故障，直到所述送风温度达到室内设定温度。
  6. 一种新风机，包括进风通道及排风通道、以及设置在进风通道上的换热器，所述排风通道将室内的空气排出室外，所述进风通道将室外的空气经过换热器的换热后，吹向室内；其特征在于，所述新风机还包括控制新风机的控制装置，而且所述控制装置包括：
    回风温度故障检测模块：用于当新风机正常运行时，判断新风机的回风温度传感器是否出现故障；
    送风温度故障检测模块：用于判断新风机的送风温度传感器是否出现故障；
    控制模块：用于当回风温度传感器出现故障时，关闭新风机对应的内机阀，风扇电机保持运行；以及当新风机的送风温度传感器未出现故障时，获取新风机的送风温度，并将所获取的送风温度作为新的回风温度，控制新风机再次运行。
  7. 如权利要求6所述的新风机，其特征在于，所述回风温度故障检测模块包括：
    回风温度检测单元：用于当新风机正常运行时，按照第一预设检测周期检测新风机的回风温度；并根据检测到的新风机的回风温度，记录第一预设时长内新风机的最高回风温度和最低回风温度；
    回风温度故障判断单元：用于判断所述最高回风温度与所述最低回风温度的差值是否大于等于预设的第一温度偏差值；当所述最高回风温度与所述最低回风温度的差值大于等于预设的温度偏差值时，判断所述回风温度传感器出现故障，并发出回风温度传感器的故障报警信息。
  8. 如权利要求6所述的新风机，其特征在于，所述送风温度故障检测模块包括：
    送风温度检测单元：用于当所述风扇电机运行第二预设时长时，按照第二预设检测周期检测新风机的当前送风温度，并记录第三预设时长内新风机的最高送风温度和最低送回风温度；
    送风温度故障判断单元：用于判断所述最高送风温度与所述最低送风温度的差值是否小于预设的第二温度偏差值；当所述最高送风温度与所述最低送风温度的差值小于预设的第二温度偏差值时，判断所述送风温度传感器未出现故障。
  9. 如权利要求8所述的新风机，其特征在于，所述送风温度故障判断单元还用于：
    当所述最高送风温度与所述最低送风温度的差值大于或等于预设的第二温度偏差值时，判断所述送风温度传感器也出现故障，并发出送风温度传感器的故障报警信息，控制所述新风机停止运行。
  10. 如权利要求6至9中任一项所述的新风机，其特征在于，所述送风温度故障判断单元还用于：当新风机再次运行达到第四预设时长时，重新判断新风机的送风温度传感器是否出现故障，直到所述送风温度达到室内设定温度。
  11. 一种非临时性计算机可读存储介质，其上存储有计算机程序，其特征在于，该程序被处理器执行时实现如权利要求1-5中任一项所述的新风机控制方法。
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