WO2021175013A1 - 空调器及其控制方法 - Google Patents

空调器及其控制方法 Download PDF

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Publication number
WO2021175013A1
WO2021175013A1 PCT/CN2021/071084 CN2021071084W WO2021175013A1 WO 2021175013 A1 WO2021175013 A1 WO 2021175013A1 CN 2021071084 W CN2021071084 W CN 2021071084W WO 2021175013 A1 WO2021175013 A1 WO 2021175013A1
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Prior art keywords
temperature
target
air conditioner
rotation speed
indoor
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PCT/CN2021/071084
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English (en)
French (fr)
Inventor
赵振立
徐雪峰
Original Assignee
青岛海尔空调电子有限公司
海尔智家股份有限公司
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Publication of WO2021175013A1 publication Critical patent/WO2021175013A1/zh

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/62—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
    • F24F11/64—Electronic processing using pre-stored data
    • 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
    • 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
    • F24F11/70—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
    • F24F11/77—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 controlling the speed of ventilators
    • 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
    • F24F11/83—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
    • 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
    • F24F11/86—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling compressors within refrigeration or heat pump circuits
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/70—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
    • F24F11/87—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling absorption or discharge of heat in outdoor units
    • F24F11/871—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling absorption or discharge of heat in outdoor units by controlling outdoor fans
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2140/00—Control inputs relating to system states
    • F24F2140/20—Heat-exchange fluid 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 belongs to the technical field of air conditioners, and specifically relates to an air conditioner and a control method thereof.
  • the air conditioner needs to adjust the indoor temperature and indoor humidity.
  • the temperature sensor and humidity sensor are usually set in the indoor unit, and the temperature and humidity of the indoor space are detected by the temperature sensor and the humidity sensor respectively.
  • the air conditioner enters the temperature adjustment mode to adjust the temperature, and when the humidity needs to be adjusted
  • the air conditioner enters the dehumidification mode to dehumidify.
  • the above-mentioned temperature adjustment mode and dehumidification mode are usually two independent operating modes.
  • the air conditioner When the air conditioner is dehumidifying, it needs to exit the cooling mode and turn on the dehumidification mode. That is, the temperature and humidity of the indoor space cannot be controlled at the same time.
  • the temperature of the indoor space cannot be adjusted, which easily causes large fluctuations in the indoor environment temperature and cannot achieve precise temperature control; and the air conditioner is set in the cooling mode, although there is a certain dehumidification effect during the cooling process, but the dehumidification effect is usually insufficient or dehumidification Excessive, leading to problems such as poor comfort.
  • one aspect of the present invention provides a control method of an air conditioner, and the control method includes: Obtain the set temperature Ts and the target relative humidity ⁇ ; obtain the indoor ambient temperature Ta and the inner coil temperature Te, and determine the target coil temperature Tet under demand conditions according to the set temperature Ts and the target relative humidity ⁇ ; compare the The indoor ambient temperature Ta and the set temperature Ts, and the inner coil temperature Te and the target coil temperature Tet are compared, and the operating parameters of the air conditioner are adjusted according to the comparison result.
  • the air conditioner includes an indoor unit and an outdoor unit, the indoor unit includes an indoor fan, the outdoor unit includes a compressor, an outdoor fan, and a throttling device, and the operation of the air conditioner
  • the parameters include one or more of the operating frequency of the compressor, the rotational speed of the outdoor fan, the rotational speed of the indoor fan, and the opening of the throttle device.
  • the "determining the target coil temperature Tet under demand conditions according to the set temperature Ts and the target relative humidity ⁇ " includes: according to the set temperature Ts and the target relative humidity ⁇ , determine the target dew point temperature Tdp under the demand working condition; determine the target coil temperature Tet under the demand working condition according to the target dew point temperature Tdp under the demand working condition.
  • the C 1 is -0.1
  • the C 2 is 0.32
  • the C 3 is 0.784
  • the C 4 is 15, the C 5 is -40.59
  • the C 6 is 25.761.
  • "Operating parameters of the device” include: when Ta ⁇ Ts+1, increase the operating frequency of the compressor and the rotational speed of the outdoor fan, and selectively adjust the rotational speed of the indoor fan and/or the opening of the throttling device; When Ts-1 ⁇ Ta ⁇ Ts, keep the operating frequency of the compressor and the rotation speed of the outdoor fan unchanged, and selectively adjust the rotation speed of the indoor fan and/or the opening of the throttling device .
  • the “opening degree of the throttling device” also includes: obtaining the current exhaust temperature and the target exhaust temperature; comparing the current exhaust temperature and the target exhaust temperature, and adjusting the opening of the throttling device according to the comparison result.
  • the control method of the air conditioner is specifically as follows: first obtain the set temperature Ts, the target relative humidity ⁇ , the indoor ambient temperature Ta, and the inner coil temperature Te, where: The set temperature Ts is the target temperature that the user expects to reach, and the target relative humidity ⁇ is the relative humidity of the air at the set temperature. Then determine the target coil temperature Tet under demand conditions according to the set temperature Ts and the target relative humidity ⁇ , compare the indoor ambient temperature Ta with the set temperature Ts, and the inner coil temperature Te with the target coil temperature Tet, and pass the indoor environment The temperature Ta and the set temperature Ts are compared to meet the temperature control of the indoor space.
  • the internal coil temperature Te and the target coil temperature Tet are compared to meet the indoor humidity control. In this way, the indoor environment is considered comprehensively.
  • the relationship between the temperature and the set temperature, and the relationship between the inner coil temperature and the target coil temperature adjust the operating parameters of the air conditioner according to the comparison result, so as to achieve the purpose of controlling temperature and humidity at the same time.
  • the operating parameter of the air conditioner may be the operating frequency of the compressor, the operating frequency of the motor, or the rotational speed of the indoor fan, or the like.
  • the demand condition refers to the operating condition of the air conditioner when the indoor ambient temperature Ta reaches the set temperature Ts. If the set temperature is 22°C, then when the indoor ambient temperature is 22°C, the corresponding The operating condition of the air conditioner is the demand condition.
  • the ambient temperature Ta is usually greater than or equal to the set temperature Ts; in the case of a certain relative humidity, the lower the temperature, the lower the dew point temperature. Therefore, the set temperature Ts is used to calculate the dew point temperature, and then the target coil temperature is calculated. According to the humidity control of the coil temperature, a faster dehumidification effect can be achieved and the target relative humidity requirement can be reached as soon as possible.
  • the dew point temperature at the current temperature can also be calculated by the current room temperature Ta, and then humidity control can be performed.
  • the air conditioner includes an indoor unit and an outdoor unit, the indoor unit includes an indoor fan, the outdoor unit includes a compressor, an outdoor fan, and a throttling device, and the operating parameters of the air conditioner include the operation of the compressor One or more of the frequency, the speed of the outdoor fan, the speed of the indoor fan, and the opening of the throttling device. For example, it can be based on the comparison result of the indoor ambient temperature and the set temperature, and the internal coil temperature and the target coil temperature.
  • the opening degree of the device, etc. realize the control of temperature and humidity by adjusting one or two or other quantities of the above-mentioned operating parameters.
  • the dew point temperature Tdp corresponding to the set temperature Ts is determined according to the set temperature Ts and the target relative humidity ⁇ .
  • the target coil temperature Tet is lower than the dew point temperature. In this way, air with a certain humidity flows through the target coil temperature Tet. Condensation will occur when the inner coil is installed, thereby achieving the purpose of dehumidification.
  • C 1 may be -0.1
  • C 2 may be 0.32
  • C 3 may be 0.784
  • C 4 may be 15, C 5 may be -40.59
  • C 6 may be 25.761.
  • Ta ⁇ Ts+1 (Ta is the indoor ambient temperature and Ts is the set temperature)
  • Ts is the set temperature
  • increase the operating frequency of the compressor and the rotation speed of the external fan thus increasing the cooling capacity of the air conditioner so as to Make the indoor ambient temperature reach the set value faster, and achieve the purpose of cooling faster; or, when Ts-1 ⁇ Ta ⁇ Ts, keep the compressor's operating frequency and outdoor fan speed unchanged to ensure the indoor ambient temperature constant.
  • the opening degree of the throttle device can be adjusted according to the comparison result of the current exhaust temperature and the target exhaust temperature.
  • the opening degree of the throttle device can be adjusted to ensure the stable operation of the air conditioner and the operating frequency of the compressor.
  • the speed of the outdoor fan is adjusted to match the speed of the indoor fan, so as to better realize the simultaneous control of temperature and humidity.
  • the dual control of temperature and humidity can be taken into account, and the user experience can be effectively improved.
  • the rotation speed of the indoor fan and the opening of the throttling device can be adjusted at the same time, or only one of the two can be adjusted.
  • Another aspect of the present invention provides an air conditioner, the air conditioner includes a controller, and the controller is configured to execute the control method of the air conditioner according to any one of the foregoing solutions.
  • the air conditioner has all the technical effects of the aforementioned control method of the air conditioner, which will not be repeated here.
  • Fig. 1 is a structural schematic diagram 1 of a control method of an air conditioner according to an embodiment of the present invention
  • Fig. 2 is a second structural diagram of a control method of an air conditioner according to an embodiment of the present invention.
  • Fig. 3 is a third structural diagram of a control method of an air conditioner according to an embodiment of the present invention.
  • FIG. 4 is a structural schematic diagram 4 of a control method of an air conditioner according to an embodiment of the present invention.
  • Figure 5 is a fifth structural diagram of a control method of an air conditioner according to an embodiment of the present invention.
  • Fig. 6 is a sixth structural diagram of a control method of an air conditioner according to an embodiment of the present invention.
  • Fig. 7 is a seventh structural diagram of a control method of an air conditioner according to an embodiment of the present invention.
  • the air conditioner includes an indoor unit and an outdoor unit. Through the circulation of the refrigerant between the indoor unit and the outdoor unit, the temperature and humidity of the indoor environment can be adjusted by absorbing or releasing heat during the phase change of the refrigerant.
  • the outdoor unit includes a compressor, an outdoor fan, and a throttling device.
  • the indoor unit includes an indoor fan.
  • the operating frequency of the compressor, the speed of the outdoor fan, the speed of the indoor fan, and the speed of the throttling device can be selectively adjusted according to the needs of users.
  • One or more operating parameters in the opening degree to meet the user's requirements for the temperature and humidity of the indoor environment.
  • the set temperature refers to the target temperature that the indoor ambient temperature is expected to reach when the air conditioner is running
  • the target relative humidity refers to the target humidity that the indoor ambient humidity is expected to reach when the air conditioner is running at the set temperature.
  • the set temperature can be set directly through the remote control or other control terminals when the air conditioner is running.
  • the determination of the target relative humidity is related to the operation mode of the air conditioner.
  • the operation mode is the cooling and dehumidification mode.
  • the cooling and dehumidification mode of the air conditioner can be the intelligent dehumidification mode or the custom dehumidification mode.
  • the intelligent dehumidification mode it can be set according to the setting
  • the temperature is used to determine the target relative humidity, no user setting is required, and the target relative humidity is different for different set temperatures.
  • the target relative humidity corresponding to different set temperatures can be stored in the controller of the air conditioner.
  • control The device can directly call the target relative humidity at different set temperatures; in the custom dehumidification mode, the user can set the target relative humidity through the remote control or other control terminals, etc., and can operate according to the target relative humidity set by the user to meet the user’s personality ⁇ demand.
  • the operation mode of the air conditioner can also be other types of temperature and humidity modes, which can realize various combined control of temperature and humidity, so as to meet various needs of users.
  • the relative humidity control of the indoor space can be adjusted by relying only on the dehumidification mode of the air conditioner, or the humidity of the indoor space can be increased through the linkage control of the humidifier and the air conditioner.
  • Those skilled in the art can adjust according to the specific conditions. Flexible choice of application scenarios. For the convenience of presentation, the following uses the operating mode of the air conditioner as the refrigeration and dehumidification mode in the temperature and humidity mode, and the direct acquisition of the target relative humidity is taken as an example to illustrate the possible implementation of the present invention.
  • Fig. 1 is a structural schematic diagram 1 of a control method of an air conditioner according to an embodiment of the present invention. As shown in Fig. 1, the control method of an air conditioner includes:
  • Step S100 the air conditioner starts to run, and the refrigeration and dehumidification mode is selected
  • Step S200 Obtain indoor ambient temperature Ta, inner coil temperature Te, set temperature Ts, and target relative humidity ⁇ ;
  • the indoor ambient temperature Ta and the inner coil temperature Te can be measured by the indoor ambient temperature sensor and the inner coil temperature sensor configured by the air conditioner, respectively.
  • Step S300 Determine the target coil temperature Tet according to the set temperature Ts and the target relative humidity ⁇ ;
  • the target coil temperature Tet is the temperature that the inner coil is expected to reach. In order to ensure that the air conditioner can cool and dehumidify at the same time, it is necessary to control the inner coil temperature Te of the air conditioner to reach the target coil temperature Tet while cooling. If the target coil temperature Tet is less than or equal to the dew point temperature, then when the inner coil temperature Te reaches Or close to the target coil temperature Tet, the water vapor in the air will be condensed to achieve the purpose of dehumidification.
  • Step S400 Compare the indoor ambient temperature Ta with the set temperature Ts, the inner coil temperature Te and the target coil temperature Tet, and adjust the operating parameters of the air conditioner according to the comparison result;
  • the operating parameters of the air conditioner include one or more of the operating frequency of the compressor, the rotational speed of the outdoor fan, the rotational speed of the indoor fan, and the opening of the electronic expansion valve.
  • it may be only the operating frequency of the compressor.
  • the operating parameters can also be the operating frequency of the compressor and the speed of the outdoor fan, or the speed of the outdoor fan and the speed of the indoor fan. It can also be the operating frequency of the compressor, the speed of the outdoor fan,
  • those skilled in the art can flexibly select the types of operating parameters that need to be adjusted according to specific application scenarios, so as to adapt to more specific applications.
  • the operating parameters of the air conditioner can also be other types of operating parameters, such as the operating frequency of the motor, etc.
  • Those skilled in the art can flexibly select the types of operating parameters that need to be adjusted according to specific application scenarios, so as to adapt to more specific Application occasions.
  • the operating frequency of the compressor usually has the maximum frequency. If the command is to increase the operating frequency of the compressor, the operating frequency of the compressor will gradually increase, and the maximum limit is the maximum frequency.
  • the speed of the outdoor fan and indoor fan can be linearly changed, including the highest speed and the lowest speed.
  • the speed of the outdoor fan and the indoor fan can achieve any speed from the highest speed to the lowest speed.
  • the speed of the outdoor fan and indoor fan can be changed from the highest speed to the lowest speed.
  • the adjustment of the gradual decrease of the high-to-low rotational speed can also realize the adjustment of the gradual increase of the rotational speed from low to high.
  • the speed of the outdoor fan and the indoor fan can also be divided by gears, such as high gear, middle gear, low gear three gears or other possible multiple gears.
  • the appropriate gear can be selected according to specific instructions. Take the outdoor fan as an example. The speed of the outdoor fan runs in the middle gear. The instruction is to reduce the speed of the outdoor fan. Then, change the speed of the outdoor fan to low gear.
  • the opening degree of the electronic expansion valve can usually be adjusted between fully open and fully closed.
  • the adjustment method of the opening degree of the electronic expansion valve can be a fixed range, multiple adjustments, such as 10s adjustment once or 30s adjustment in sequence, etc., or it can be Different amplitudes can be adjusted as needed, as long as the opening degree of the electronic expansion valve can be realized. For example, if the instruction is to increase the opening degree of the electronic expansion valve, the electronic expansion valve is controlled to gradually increase from the current opening degree until the control requirement is reached. In order to ensure the stable operation of the air conditioner, the opening degree of the electronic expansion valve is usually gradually increased or gradually decreased.
  • Step S500 Exit the refrigeration and dehumidification mode.
  • Fig. 2 is a second structural diagram of a control method of an air conditioner according to an embodiment of the present invention. As shown in Fig. 2, the control method of an air conditioner includes:
  • Step S201 the air conditioner starts to run, and the refrigeration and dehumidification mode is selected
  • Step S202 Obtain indoor ambient temperature Ta, inner coil temperature Te, set temperature Ts, and target relative humidity ⁇ ;
  • Step S203 Determine the target dew point temperature Tdp under demand conditions according to the set temperature Ts and the target relative humidity ⁇ ;
  • the target dew point temperature Tdp under demand conditions is calculated by setting the temperature Ts and the target relative humidity ⁇ , which is specifically calculated by the following formula:
  • Tdp (C 1 ⁇ 2 +C 2 ⁇ +C 3 ) ⁇ Ts-(C 4 ⁇ 2 +C 5 ⁇ +C 6 )
  • C 1 , C 2 , C 3 , C 4 , C 5 and C 6 are coefficients
  • Ts is the set temperature
  • ⁇ is the target relative humidity
  • Tdp is the dew point temperature corresponding to the set temperature Ts.
  • the target dew point temperature Tdp under demand conditions can be calculated based on the easily available set temperature Ts and the target relative humidity ⁇ corresponding to the set temperature Ts.
  • the calculation is simple and not easy to make mistakes.
  • the actual dew point temperature will be the same as or close to the target dew point temperature Tdp.
  • Step S204 Determine the target coil temperature Tet under the demand operating condition according to the target dew point temperature Tdp under the demand operating condition;
  • the target coil temperature Tet under demand conditions is calculated by the following formula:
  • Tet is the target coil temperature
  • t is the preset constant
  • the preset constant t is a fixed value and a positive value.
  • Those skilled in the art can refer to the specific model, type and actual experience of the air conditioner. Flexible choice.
  • the target coil temperature Tet calculated according to the target dew point temperature Tdp under demand conditions must be lower than the target dew point temperature Tdp, and the target coil temperature Tet refers to the temperature that the inner coil is expected to reach.
  • the inner coil temperature Te will inevitably change in the direction below the target dew point temperature Tdp.
  • the inner coil temperature must also be lower than the actual dew point temperature, so as to achieve the purpose of dehumidification.
  • different set temperature Ts corresponds to different target dew point temperature Tdp
  • different target dew point temperature Tdp corresponds to different target coil temperature Tet
  • different set temperature corresponds to different target coil temperature Tet for Ts.
  • Step S205 Compare the indoor ambient temperature Ta with the set temperature Ts, the inner coil temperature Te and the target coil temperature Tet, and adjust the operating parameters of the air conditioner according to the comparison result;
  • Step S206 Exit the cooling and dehumidification mode.
  • Fig. 3 is a third structural diagram of a control method of an air conditioner according to an embodiment of the present invention. As shown in Fig. 3, the control method of an air conditioner includes:
  • Step S301 the air conditioner starts to run, and the refrigeration and dehumidification mode is selected
  • Step S302 Obtain the indoor ambient temperature Ta and the set temperature Ts;
  • Step S303 Compare the indoor ambient temperature Ta with the set temperature Ts, if Ta ⁇ Ts+1, go to step S304; if not, go to step S305;
  • Step S304 controlling the operating frequency of the compressor and the rotation speed of the outdoor fan to increase
  • Step S305 if Ts-1 ⁇ Ta ⁇ Ts, go to step S306; if not, go to step S307;
  • Step S306 controlling the operating frequency of the compressor and the rotation speed of the outdoor fan to remain unchanged
  • Step S307 if Ta ⁇ Ts-1, go to step S308; if not, go back to step S303;
  • Step S308 Exit the cooling and dehumidification mode.
  • the indoor ambient temperature Ta is higher than the set temperature Ts+1, the operating frequency of the compressor and the rotation speed of the outdoor fan are increased by the controller, and the operating frequency of the compressor is increased, which increases the air conditioner.
  • the increase in the speed of the outdoor fan will increase the cooling capacity of the outdoor unit and the cooling capacity of the air conditioner, so that the indoor ambient temperature Ta can be quickly reduced, making it quickly close to the set temperature Ts . If the indoor ambient temperature Ta is higher than the set temperature Ts-1 and lower than the set temperature Ts, at this time, the indoor ambient temperature Ta is not much different from the set temperature, and the operating frequency of the compressor and the rotation speed of the outdoor fan are kept unchanged.
  • the indoor ambient temperature Ta is less than the set temperature Ts, it means that the indoor ambient temperature Ta at this time just meets the needs of the user, and the air conditioning refrigeration and dehumidification mode can be exited.
  • the temperature of the indoor environment can be better adjusted, so that it can reach the user's expectations as soon as possible, and the user experience can be improved.
  • 1 in Ts+1 and Ts-1 represents the reserved adjustment margin, and does not indicate a specific value.
  • the amount such as 0.5, etc.
  • Fig. 4 is a structural schematic diagram 4 of a control method of an air conditioner according to an embodiment of the present invention. As shown in Fig. 4, the control method of an air conditioner includes:
  • Step S401 the air conditioner starts to run, and the refrigeration and dehumidification mode is selected
  • Step S402 Obtain the indoor ambient temperature Ta and the set temperature Ts, compare the indoor ambient temperature Ta with the set temperature Ts, and if Ta ⁇ Ts+1, go to step S403;
  • Step S403 controlling the operating frequency of the compressor and the rotation speed of the outdoor fan to increase;
  • Step S404 Obtain the indoor ambient temperature Ta and the set temperature Ts, and compare the indoor ambient temperature Ta with the set temperature Ts; if Ta ⁇ Ts+1, execute step S405;
  • Step S405 Detect whether the operating frequency of the compressor is the maximum frequency and whether the rotation speed of the outdoor fan is the maximum rotation speed; if yes, go to step S406; if not, go back to step S402;
  • Step S406 Make the operating frequency of the compressor run at the maximum frequency, and the rotational speed of the outdoor fan run at the maximum rotational speed;
  • Step S407 Obtain the inner coil temperature Te and the target coil temperature Tet, compare the inner coil temperature Te and the target coil temperature Tet; if Te>Tet, go to step S408; if not, go to step S409;
  • Step S408 Control the rotation speed of the indoor fan to decrease
  • Step S410 controlling the rotation speed of the indoor fan to remain unchanged
  • Step S411 if Te ⁇ Tet, go to step S412; if not, go back to step S407;
  • Step S412 Control the rotation speed of the indoor fan to increase.
  • step S402 and step S407 can be executed synchronously, or step S402 can be executed first and then step S407 can be executed.
  • step S402 can be executed first and then step S407 can be executed.
  • Those skilled in the art can flexibly choose the execution order of the two steps according to specific application scenarios, as long as the simultaneous control of temperature and humidity can be achieved. Can.
  • the indoor ambient temperature Ta when the indoor ambient temperature Ta is greater than the set temperature Ts+1, the operating frequency of the compressor and the rotation speed of the outdoor fan are increased, the cooling capacity of the air conditioner is increased, and the indoor ambient temperature Ta is reduced.
  • compare the inner coil temperature Te and the target coil temperature Tet and adjust the speed of the indoor fan according to the size of the inner coil temperature Te and the target coil temperature Tet. For example, when the inner coil temperature Te>the target coil temperature Tet, Decrease the speed of the indoor fan, so that the cooling demand of the air conditioner is also reduced, that is, the cooling capacity taken away by the air is also reduced, and the cooling capacity that the air conditioner can provide is not reduced, so that the inner coil The temperature Te will decrease until it is close to the target coil temperature Tet. In this way, the indoor ambient temperature Ta can be close to the set temperature Ts and the inner coil temperature Te close to the target coil temperature Tet at the same time, thereby achieving the purpose of simultaneously adjusting the temperature and humidity of the indoor space.
  • Fig. 5 is a structural schematic diagram 5 of a control method of an air conditioner according to an embodiment of the present invention. As shown in Fig. 5, the control method of an air conditioner includes:
  • Step S501 the air conditioner starts to run, and the refrigeration and dehumidification mode is selected
  • Step S502 Obtain the indoor ambient temperature Ta and the set temperature Ts, compare the indoor ambient temperature Ta with the set temperature Ts, if Ts-1 ⁇ Ta ⁇ Ts, go to step S503; if not, go to step S504;
  • Step S503 controlling the operating frequency of the compressor and the rotation speed of the outdoor fan to remain unchanged
  • Step S504 Obtain the inner coil temperature Te and the target coil temperature Tet, compare the inner coil temperature Te and the target coil temperature Tet, if Te>Tet, go to step S505; if not, go to step S506;
  • Step S505 Control the rotation speed of the indoor fan to decrease
  • Step S507 controlling the rotation speed of the indoor fan to remain unchanged
  • Step S508 if Te ⁇ Tet, go to step S509; if not, go back to step S504;
  • Step S509 Control the rotation speed of the indoor fan to increase.
  • steps S502 and S504 can be executed synchronously, or step S502 can be executed first and then step S504 can be executed.
  • steps S502 and S504 can be executed synchronously, or step S502 can be executed first and then step S504 can be executed.
  • Those skilled in the art can flexibly choose the execution order of the two steps according to specific application scenarios, as long as the simultaneous control of temperature and humidity can be achieved. Can.
  • the indoor ambient temperature Ta when the indoor ambient temperature Ta is greater than or equal to the set temperature Ts-1 and less than or equal to the set temperature Ts, the indoor ambient temperature Ta is close to the set temperature Ts. At this time, there is no need to adjust the frequency of the compressor and the outdoor fan The speed can be kept unchanged. At the same time, compare the inner coil temperature Te and the target coil temperature Tet, and adjust the speed of the indoor fan according to the size of the inner coil temperature Te and the target coil temperature Tet. For example, when the inner coil temperature Te>the target coil temperature Tet, Decrease the speed of the indoor fan until it is close to the target coil temperature Tet.
  • the opening of the electronic expansion valve is also adjusted to ensure Stable operation of the air conditioner.
  • Fig. 6 is a structural diagram 6 of a control method of an air conditioner according to an embodiment of the present invention. As shown in Fig. 6, the control method of an air conditioner includes:
  • Step S601 the air conditioner starts to run, and the refrigeration and dehumidification mode is selected;
  • Step S602 Obtain the maximum value and minimum value of the condensing temperature of the compressor and the outdoor ambient temperature Tao;
  • Step S603 Determine the target exhaust temperature Tdt according to the maximum value and minimum value of the condensing temperature of the compressor and the outdoor ambient temperature Tao;
  • Step S604 Obtain the current exhaust temperature Td
  • Step S605 Calculate the difference between the current exhaust temperature Td and the target exhaust temperature Tdt, and adjust the opening degree of the electronic expansion valve according to the difference between the current exhaust temperature Td and the target exhaust temperature Tdt.
  • step S605 and step S402, step S407 or step S605 and step S502, step S504 can be performed at the same time, or it can be performed first in the order of step S402, step S407, step S605 or step S502, step S504, and step S605, or Perform step S407, step S402, step S605, or step S504, step S502, step S605 or other possible sequences, or only perform step S605 or step S402 and step S407 or step S502 and step S504, as long as the air conditioner is ensured
  • the temperature and humidity can be controlled at the same time while the device is running stably.
  • the condensing temperature of the compressor is usually within a range, such as 28°C to 65°C.
  • the condensing temperature range is usually 29°C to 63°C in the calculation. In this way, the maximum value of the condensing temperature of the compressor is 63°C and the minimum value is 29°C.
  • the opening degree of the electronic expansion valve is usually adjusted by using the target suction superheat look-up table or the target exhaust superheat section look-up table method.
  • the disadvantage of the target suction superheat look-up table method is the suction temperature.
  • the temperature of the coil is not much different, the superheat accuracy is not enough, and the problem of improper valve adjustment is prone to occur.
  • most air conditioners usually use capillary shunting, which is difficult to ensure good shunt consistency, which leads to the calculation of target inhalation. It is also difficult to ensure a good consistency of the inner coil temperature of the heat, and the deviation between the coil temperatures is large, which leads to low accuracy of the superheat check-up valve.
  • the suction superheat is distorted, and the valve is adjusted according to the target suction superheat, which cannot meet the requirements of optimal performance.
  • the electronic expansion valve is controlled by the target exhaust superheat segmented look-up table, due to the limited number of segments, it is usually unable to adapt to a large outdoor ambient temperature range. Under various ambient temperatures, the air conditioner cannot guarantee the best operation Temperature, temperature and humidity cannot be well controlled.
  • the opening of the electronic expansion valve is adjusted by the difference between the current exhaust temperature Td and the target exhaust temperature Tdt.
  • the current exhaust temperature Td can be detected by the exhaust temperature sensor of the air conditioner.
  • the current exhaust temperature will also be different; and the target exhaust temperature Tdt calculated according to the compressor's condensation temperature and the outdoor ambient temperature is directly related to the outdoor ambient temperature Tao, that is, the target exhaust The temperature Tdt will change with the change of the outdoor ambient temperature Tao, and the target exhaust temperature Tdt calculated in step S603 is a dynamic value.
  • the air conditioner can flexibly adjust the opening degree of the electronic expansion valve according to different outdoor ambient temperature Tao and different operating conditions, and automatically adjust the opening degree of the electronic expansion valve under various working conditions.
  • the operating frequency of the compressor, the speed of the outdoor fan and the adjustment of the speed of the indoor fan are adapted to achieve the purpose of controlling the temperature and humidity of the indoor space and ensuring the efficient and stable operation of the air conditioner.
  • Fig. 7 is a structural diagram 7 of a control method of an air conditioner according to an embodiment of the present invention. As shown in Fig. 7, the control method of an air conditioner includes:
  • Step S701 the air conditioner starts to run, and the refrigeration and dehumidification mode is selected;
  • Step S702 Obtain the maximum and minimum values of the condensing temperature of the compressor and the outdoor ambient temperature
  • Step S703 Determine the target exhaust temperature Tdt according to the maximum value and the minimum value of the condensing temperature of the compressor and the outdoor ambient temperature Tao;
  • Step S704 Obtain the current exhaust temperature Td, and calculate the difference between the current exhaust temperature Td and the target exhaust temperature Tdt. If Td-Tdt ⁇ -1°C, execute step S705; if not, execute step S706;
  • Step S705 Decrease the opening degree of the electronic expansion valve
  • the opening degree of the electronic expansion valve directly affects the flow rate of the refrigerant flowing to the indoor unit.
  • Td-Tdt ⁇ -1°C it means that the current exhaust temperature Td is too low, and the current exhaust temperature Td needs to be increased.
  • the opening of the electronic expansion valve By reducing the opening of the electronic expansion valve, increasing the temperature Te of the inner coil and returning the refrigerant to the compressor The temperature will increase, which can increase the current exhaust temperature Td.
  • the temperature Te of the inner coil is related to the dehumidification capacity of the air conditioner. An increase in the temperature Te of the inner coil will inevitably lead to a decrease in the dehumidification capacity of the air conditioner. This way, excessive dehumidification can be avoided, and the temperature and humidity of the indoor environment are at a level. Within the appropriate range, the comfort of the indoor environment is ensured.
  • Step S706 If Td-Tdt>1°C, execute step S707; if not, execute step S708;
  • Step S707 Increase the opening degree of the electronic expansion valve
  • Td-Tdt>1°C it means that the current exhaust temperature Td is too high, it is necessary to reduce the current exhaust temperature Td, increase the opening of the electronic expansion valve, reduce the temperature Te of the inner coil, and the temperature of the refrigerant returning to the compressor Will be lowered, so that the current exhaust temperature Td can be appropriately lowered.
  • the temperature Te of the inner coil is related to the dehumidification capacity of the air conditioner. A decrease in the temperature Te of the inner coil will inevitably lead to an increase in the dehumidification capacity of the air conditioner, thus ensuring the dehumidification capacity of the air conditioner.
  • Step S708 if -1°C ⁇ Td-Tdt ⁇ 1°C, go to step S709; if not, go back to step S704;
  • Step S709 Keep the opening degree of the electronic expansion valve unchanged.
  • the target exhaust temperature Tdt is calculated according to the condenser temperature of the compressor and the outdoor ambient temperature Tao to adjust the electronic expansion valve.
  • the opening degree of the expansion valve, the target exhaust temperature Tdt calculated by this method can more accurately reflect the real state of the air conditioner, and can be adjusted in real time according to the change of the outdoor ambient temperature Tao, so that it can be adjusted in real time under various working conditions.
  • the target exhaust temperature Tdt corresponding to the outdoor ambient temperature Tao can be obtained in real time, and the adjustment is more precise and faster.
  • the adjustment of the operating frequency of the aforementioned compressor, the rotational speed of the outdoor fan, and the rotational speed of the indoor fan will inevitably cause changes in the operating conditions of the air conditioner, and the current exhaust temperature Td will also change accordingly, that is, the current exhaust temperature Td
  • the difference between the target exhaust temperature Tdt is related to the actual operating conditions of the air conditioner, and can reflect the actual operating conditions of the air conditioner. Under different operating conditions, the electronic expansion can be performed according to different differences.
  • the valve is adjusted to better realize the simultaneous control of the temperature and humidity of the air conditioner.
  • the set temperature and the indoor ambient temperature are compared, and the operating frequency of the compressor and the rotation speed of the outdoor fan are increased by the controller according to the size of the set temperature and the indoor ambient temperature.
  • the controller determines the target dew point temperature according to the set temperature and target relative humidity, and then calculate the target coil temperature according to the target dew point temperature, compare the target coil temperature and the inner coil temperature,
  • the speed of the indoor fan is decreased or kept constant or increased through the controller, thereby reducing the temperature of the inner coil or keeping the temperature of the inner coil constant or increasing the temperature of the inner coil to achieve the purpose of dehumidification; according to the condensation of the compressor
  • the temperature range and outdoor ambient temperature determine the target exhaust temperature, compare the current exhaust temperature with the target exhaust temperature, and adjust the opening of the electronic expansion valve.

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Abstract

一种空调器及其控制方法，包括：获取设定温度Ts和目标相对湿度φ；获取室内环境温度Ta和内盘管温度Te，根据设定温度Ts和所述目标相对湿度φ确定需求工况下的目标盘管温度Tet；比较所述室内环境温度Ta与所述设定温度Ts以及比较所述内盘管温度Te与目标盘管温度Tet，根据比较结果调整所述空调器的运行参数。通过根据室内环境温度和设定温度、内盘管温度与目标盘管温度的比较结果调整空调器的运行参数，实现了空调器的温度和湿度的双重控制，提升用户体验。

Description

空调器及其控制方法 技术领域
本发明属于空调技术领域，具体涉及一种空调器及其控制方法。
背景技术
随着人们生活水平的越来越高，空调的使用越来越普遍。为了使处于室内空间的人们更为舒适，通常空调器需要对室内温度和室内湿度进行调节。目前，通常是通过在室内机设置温度传感器和湿度传感器，通过温度传感器和湿度传感器分别检测室内空间的温度和湿度，当需要调整温度时，空调器进入温度调整模式来调整温度，当需要调整湿度时，空调器进入除湿模式来进行除湿。
不过，上述温度调整模式和除湿模式通常是两种独立的运行模式，空调器进行除湿时，需要退出制冷模式，开启除湿模式，即不能同时控制室内空间的温度和湿度，这样一来，在除湿过程中，就不能调整室内空间的温度，容易造成室内环境温度波动较大，不能实现精确的温度控制；而空调设定制冷模式，虽然制冷过程中也有一定除湿效果，但通常除湿效果不足或者除湿过度，导致舒适性差等问题。
相应地，本领域需要一种新的技术方案来解决上述问题。
发明内容
为了解决现有技术中的上述问题，即为了解决现有的空调器不能同时控制室内空间的温度和湿度的问题，本发明一方面提供了一种空调器的控制方法，所述控制方法包括：获取设定温度Ts和目标相对湿度φ；获取室内环境温度Ta和内盘管温度Te，根据设定温度Ts和所述目标相对湿度φ确定需求工况下的目标盘管温度Tet；比较所述室内环境温度Ta与所述设定温度Ts、以及比较所述内盘管温度Te与目标盘管温度Tet，根据比较结果调整所述空调器的运行参数。
在上述控制方法的优选技术方案中，所述空调器包括室内机和室外机，所述室内机包括室内风机，所述室外机包括压缩机、室外风机和节流装置，所述空调器的运行参数包括压缩机的运行频率、室 外风机的转速、室内风机的转速以及节流装置的开度中的一种或者几种。
在上述控制方法的优选技术方案中，所述“根据设定温度Ts和所述目标相对湿度φ确定需求工况下的目标盘管温度Tet”包括：根据设定温度Ts和所述目标相对湿度φ，确定需求工况下的目标露点温度Tdp；根据所述需求工况下的目标露点温度Tdp，确定所述需求工况下的目标盘管温度Tet。
在上述控制方法的优选技术方案中，所述“根据设定温度Ts和所述目标相对湿度φ，确定需求工况下的目标露点温度Tdp”具体为：根据下列公式确定所述露点温度Tdp：Tdp＝(C 1φ 2+C 2φ+C 3)×Ts-(C 4φ 2+C 5φ+C 6)，其中，C 1、C 2、C 3、C 4、C 5和C 6为系数，Ts为所述设定温度，φ为所述目标相对湿度，Tdp为所述设定温度Ts所对应的露点温度。
在上述控制方法的优选技术方案中，所述C 1为-0.1，所述C 2为0.32，所述C 3为0.784，所述C 4为15，所述C 5为-40.59，所述C 6为25.761。
在上述控制方法的优选技术方案中，所述“比较所述室内环境温度Ta与所述设定温度Ts以及比较所述内盘管温度Te与目标盘管温度Tet，根据比较结果调整所述空调器的运行参数”包括：当Ta≥Ts+1时，使所述压缩机的运行频率和所述室外风机的转速上升，选择性地调整室内风机的转速和/或节流装置的开度；当Ts-1≤Ta≤Ts时，使所述压缩机的运行频率和所述室外风机的转速保持不变，选择性地调整所述室内风机的转速和/或所述节流装置的开度。
在上述控制方法的优选技术方案中，“当Ta≥Ts+1时，使所述压缩机的运行频率和所述室外风机的转速上升，选择性地调整所述室内风机的转速和/或所述节流装置的开度”具体为：当Te＞Tet时，使所述室内风机的转速下降；当Te＝Tet时，使所述室内风机的转速保持不变；当Te＜Tet时，使所述室内风机的转速上升。
在上述控制方法的优选技术方案中，“当Ts-1≤Ta≤Ts时，使所述压缩机的运行频率和所述室外风机的转速保持不变，选择性地调整所述室内风机的转速和/或所述节流装置的开度”包括：当Te＞Tet时，使所述室内风机的转速下降；当Te＝Tet时，使所述室内风机的转速均保持不变；当Te＜Tet时，使所述室内风机的转速上升。
在上述控制方法的优选技术方案中，所述“当Ta≥Ts+1时，使所述压缩机的运行频率和所述室外风机的转速上升，选择性地调整室内风机的转速和/或节流装置的开度；当Ts-1≤Ta≤Ts时，使所述压缩机的运行频率和所述室外风机的转速保持不变，选择性地调整所述室内风机的转速和/或所述节流装置的开度”还包括：获取当前排气温度和目标排气温度；比较所述当前排气温度和所述目标排气温度，根据比较结果调整所述节流装置的开度。
本领域技术人员能够理解的是，在新型的技术方案中，空调器的控制方法具体为：首先获取设定温度Ts、目标相对湿度φ、室内环境温度Ta、以及内盘管温度Te，其中，设定温度Ts为用户期望达到的目标温度，目标相对湿度φ为设定温度下的空气的相对湿度。然后根据设定温度Ts和目标相对湿度φ确定需求工况下的目标盘管温度Tet，比较室内环境温度Ta与设定温度Ts、以及内盘管温度Te与目标盘管温度Tet，通过室内环境温度Ta和设定温度Ts的比较，来满足室内空间的温度的控制，通过内盘管温度Te和目标盘管温度Tet的比较，来满足室内湿度的控制，这样一来，在综合考虑室内环境温度与设定温度的大小关系以及内盘管温度与目标盘管温度的大小关系，根据比较结果调整空调器的运行参数，从而达到同时控制温度和湿度的目的。空调器的运行参数可以是压缩机的运行频率、电机的运行频率或者室内风机的转速或者等等。
需要说明的是，需求工况指的是室内环境温度Ta达到设定温度Ts时的空调器的运行工况，如设定温度为22℃，那么室内环境温度为22℃时，此时对应的空调器的运行工况即为需求工况。在空调器的运行模式为制冷模式时，环境温度Ta通常大于等于设定温度Ts；在相对湿度一定的情况下，温度越低，露点温度越低。因此用设定温度Ts来计算露点温度，进而计算出目标盘管温度，根据该盘管温度进行湿度控制，能够达到更快的除湿效果，从而尽快达到目标相对湿度要求。当然，也可以通过当前房间温度Ta计算出当前温度下的露点温度，进而进行湿度控制。
本发明的优选技术方案中，空调器包括室内机和室外机，所述室内机包括室内风机，所述室外机包括压缩机、室外风机和节流装置，空调器的运行参数包括压缩机的运行频率、室外风机的转速、室内风机的转速以及节流装置的开度中的一种或者几种，如，可以根据 室内环境温度与设定温度、内盘管温度与目标盘管温度的比较结果来调整压缩机的运行频率，或者压缩机的运行频率和室外风机的转速，或者室外风机的转速和室内风机的转速，或者压缩机的运行频率、室外风机的转速、室内风机的转速以及节流装置的开度等，通过对上述一种或者两种或者其他数量的运行参数的调整，实现对温度和湿度的控制。
进一步地，可以根据公式Tdp＝(C 1φ 2+C 2φ+C 3)×Ts-(C 4φ 2+C 5φ+C 6)来计算需求工况下的目标露点温度，即可以根据设定温度Ts和目标相对湿度φ来确定该设定温度Ts对应的露点温度Tdp。然后再根据该目标露点温度Tdp确定需求工况下的目标盘管温度Tet，通常目标盘管温度Tet低于露点温度，这样，具有一定湿度的空气在流经温度为该目标盘管温度Tet下的内盘管时，就会发生冷凝，从而达到了除湿的目的。优选地，C 1可以为-0.1，C 2可以为0.32，C 3可以为0.784，C 4可以为15，C 5可以为-40.59，C 6可以为25.761。
进一步地，当Ta≥Ts+1(Ta为室内环境温度，Ts为设定温度)时，增大压缩机的运行频率和外风机的转速，这样也就增加了空调器的制冷量，以便能够更快地使室内环境温度达到设定值，更快地达到制冷的目的；或者，当Ts-1≤Ta≤Ts时，保持压缩机的运行频率和室外风机的转速不变，确保室内环境温度不变。同时，选择性地调整室内风机的转速和/或节流装置的开度，通过调整室内风机的转速达到调整盘管温度的目的，进而达到调整室内环境的湿度的目的，以Ta≥Ts+1为例，Te＞Tet(Te为内盘管温度)时，降低室内风机的转速，这样空调器的制冷需求量也就减小了，即空气带走的冷量也就减少了，而空调器能够提供的制冷量并没有减小，这样盘管温度就会降低，直至与目标盘管温度接近，进而达到除湿的目的；当Te＝Tet时，室内风机的转速保持不变，空气中的水蒸气会部分冷凝，以达到除湿的目的；当Te＜Tet时，增大室内风机的转速，空调器的制冷需求量增加，盘管温度逐渐升高，以免过度除湿，使室内环境的空气过于干燥。此外，还可以根据当前排气温度和目标排气温度的比较结果，还可以调整节流装置的开度，通过节流装置的开度的调整确保空调器的稳定运行，与压缩机的运行频率、室外风机的转速和室内风机的转速的调整相适应，以便能够更好地实现温度和湿度的同时控制。通过这样的调整方式，并辅以节流装置的开度的调整，从而能够兼顾温度和湿度的双重 控制，有效提升用户体验。显然，可以同时调整室内风机的转速与节流装置的开度，也可以仅调整二者中的一个。
本发明另一方面提供了一种空调器，所述空调器包括控制器，所述控制器用于执行前述任一方案所述的空调器的控制方法。
需要说明的是，该空调器具有前述空调器的控制方法的所有技术效果，在此不再赘述。
附图说明
下面参照附图来描述本发明的空调器的控制方法。附图中：
图1是本发明一种实施例的空调器的控制方法的结构示意图一；
图2是本发明一种实施例的空调器的控制方法的结构示意图二；
图3是本发明一种实施例的空调器的控制方法的结构示意图三；
图4是本发明一种实施例的空调器的控制方法的结构示意图四；
图5是本发明一种实施例的空调器的控制方法的结构示意图五；
图6是本发明一种实施例的空调器的控制方法的结构示意图六；
图7是本发明一种实施例的空调器的控制方法的结构示意图七。
具体实施方式
下面参照附图来描述本发明的优选实施方式。本领域技术人员应当理解的是，这些实施方式仅仅用于解释本发明的技术原理，并非旨在限制本发明的保护范围。
需要说明的是，在本发明的描述中，术语“中心”、“上”、“下”、“左”、“右”、“竖直”、“水平”、“内”、“外”等指示的方向或位置关系的术语是基于附图所示的方向或位置关系，这仅仅是为了便于描述，而不是指示或暗示所述装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本发明的限制。此外， 术语“第一”、“第二”、“第三”仅用于描述目的，而不能理解为指示或暗示相对重要性。而且，术语“包括”、“包含”或者其任何其他变体意在涵盖非排他性的包含，从而使得包括一系列要素的过程、方法或者设备不仅包括那些要素，而且还包括没有明确列出的其他要素。
空调器包括室内机和室外机，通过冷媒在室内机和室外机之间的循环，利用冷媒的相变过程中吸热或者放热来达到调整室内环境的温度和湿度的目的。其中，室外机包括压缩机、室外风机和节流装置，室内机包括室内风机，可以根据用户的需求选择性地调整压缩机的运行频率、室外风机的转速、室内风机的转速、节流装置的开度中的一个或者多个运行参数，以便满足用户对于室内环境的温度和湿度的需求。
本发明中，设定温度是指空调器运行时室内环境温度预计要达到的目标温度，目标相对湿度是指空调器运行设定温度时室内环境湿度预计要达到的目标湿度。其中，设定温度可以在空调器运行时直接通过遥控器或者其他控制端进行设置。目标相对湿度的确定与空调器的运行模式有关，如运行模式为制冷除湿模式，空调器的制冷除湿模式可以为智能除湿模式，也可以为自定义除湿模式，智能除湿模式下，可以根据设定温度来确定目标相对湿度，无需用户设置，设定温度不同目标相对湿度也不同，如可以将不同设定温度对应的目标相对湿度值保存在空调器的控制器中，在空调器运行时，控制器可以直接调取不同设定温度下的目标相对湿度；自定义除湿模式下，用户通过遥控器或者其他控制端等来设置目标相对湿度，可以根据用户设置的目标相对湿度运行，满足用户的个性化需求。显然，空调器的运行模式也可以是其他类型的温湿模式，该模式可以实现温度和湿度的各种组合控制，以便满足用户的各种需求。本发明中，对于室内空间的相对湿度的控制，可以是仅依靠空调器的除湿模式来进行调节，也可以通过加湿器与空调器联动控制来增加室内空间的湿度，本领域技术人员可以根据具体的应用场景灵活选择。为了表述方便，下文以空调器的运行模式为温湿模式中的制冷除湿模式，并以直接获取目标相对湿度为例来进行阐述本发明的可能的实现方式。
图1是本发明一种实施例的空调器的控制方法的结构示意图一，如图1所示，空调器的控制方法包括：
步骤S100：空调器开始运行，选择制冷除湿模式；
步骤S200：获取室内环境温度Ta、内盘管温度Te、设定温度Ts以及目标相对湿度φ；
其中，室内环境温度Ta和内盘管温度Te可以分别由空调器配置的室内环境温度传感器和内盘管温度传感器测量得到。
步骤S300：根据设定温度Ts和目标相对湿度φ确定目标盘管温度Tet；
目标盘管温度Tet是指内盘管预计要达到的温度。为了确保空调器能够同时制冷和除湿，在制冷的同时需要控制空调器的内盘管温度Te达到目标盘管温度Tet，若目标盘管温度Tet小于等于露点温度，那么当内盘管温度Te达到或者靠近目标盘管温度Tet时，空气中的水蒸气就会被冷凝下来，进而达到除湿的目的。
步骤S400：比较室内环境温度Ta与设定温度Ts、内盘管温度Te与目标盘管温度Tet，根据比较结果调整空调器的运行参数；
其中，空调器的运行参数包括压缩机的运行频率、室外风机的转速、室内风机的转速以及电子膨胀阀的开度中的一种或者几种，如，可以是只调整压缩机的运行频率一种运行参数，也可以是调整压缩机的运行频率和室外风机的转速，或者室外风机的转速和室内风机的转速等两种运行参数，还可以是调整压缩机的运行频率、室外风机的转速、室内风机的转速以及节流装置的开度这四种运行参数，本领域技术人员可以根据具体的应用场景灵活选择需要调整的运行参数的类型，以便适应更加具体的应用场合。
可以理解的是，空调器的运行参数还可以是其他种类的运行参数，如电机的运行频率等，本领域技术人员可以根据具体的应用场景灵活选择需要调整的运行参数的种类，以便适应更加具体的应用场合。
压缩机的运行频率通常具有最大频率，若指令为升高压缩机的运行频率，则使压缩机的运行频率逐渐升高，最高限为最大频率。
室外风机和室内风机的转速可以呈线性变化，包括最高转速和最低转速，室外风机和室内风机的转速可以实现从最高转速到最低转速内的任一转速，室外风机和室内风机的转速可以实现从高到低的转速逐渐降低的调整，也可以实现从低到高的转速逐渐升高的调整。室外风机和室内风机的转速也可以以挡位划分，如包括高挡、中挡、低挡三挡或者其他可能的多挡，可以根据具体的指令选择合适的挡位，以室外风机为例，室外风机的转速以中挡位运转，指令为降低室外风机的转速，那么，将室外风机的转速改为低挡位运转即可。
电子膨胀阀的开度通常可在全开和全关之间进行调节，电子膨胀阀的开度的调节方式可以是固定幅度、多次调节，如10s调节一次或者30s调节依次等，也可以是不同幅度、依需调节，只要能够实现电子膨胀阀的开度即可。举例而言，若指令是增大电子膨胀阀的开度，则控制电子膨胀阀从当前的开度逐渐增加，直至达到控制需求。而为了确保空调器的稳定运行，电子膨胀阀的开度通常是逐渐增大或者逐渐减小的。
步骤S500：退出制冷除湿模式。
图2是本发明一种实施例的空调器的控制方法的结构示意图二，如图2所示，空调器的控制方法包括：
步骤S201：空调器开始运行，选择制冷除湿模式；
步骤S202：获取室内环境温度Ta、内盘管温度Te、设定温度Ts以及目标相对湿度φ；
步骤S203：根据设定温度Ts和目标相对湿度φ确定需求工况下的目标露点温度Tdp；
本实施例通过设定温度Ts和目标相对湿度φ来计算需求工况下的目标露点温度Tdp，具体通过下述公式计算得到：
Tdp＝(C 1φ 2+C 2φ+C 3)×Ts-(C 4φ 2+C 5φ+C 6)
其中，C 1、C 2、C 3、C 4、C 5和C 6为系数，Ts为设定温度，φ为目标相对湿度，Tdp为设定温度Ts对应的露点温度。显然，C 1、C 2、C 3、C 4、C 5和C 6可以为常数，也可以为变量，发明人经过反复实验、计算，得出上述系数的具体取值为：C 1＝-0.1，C 2＝0.32，C 3＝0.784，C 4＝15，C 5＝-40.59，C 6＝25.761。
这样，通过上述公式，根据容易得到的设定温度Ts以及与设定温度Ts对应的目标相对湿度φ就能够计算得到需求工况下的目标露点温度Tdp，计算简便，不易出错。在需求工况下，实际露点温度会与该目标露点温度Tdp相同或者靠近。
步骤S204：根据需求工况下的目标露点温度Tdp确定需求工况下的目标盘管温度Tet；
当内盘管温度Te小于等于实际露点温度时，空气中的水蒸气就会被冷凝下来，即可以将空气中的水蒸气从空气中分离出来，这样处理后的空气中的水蒸气含量降低，进而达到了除湿的目的。具体地，通过如下公式来计算需求工况下的目标盘管温度Tet：
Tet＝Tdp-t
其中，Tet为目标盘管温度，t为预设常数。
通常，预设常数t为定值，且为正值，可以根据实际经验设置该常数，如t＝2℃或者3℃等，本领域技术人员可以根据空调器的具体型号、类型以及实际经验等灵活选择。这样一来，根据需求工况下的目标露点温度Tdp计算得到的目标盘管温度Tet必定低于目标露点温度Tdp，而目标盘管温度Tet是指内盘管预计要达到的温度，这样，在制冷除湿模式下，内盘管温度Te也就必定会朝着低于目标露点温度Tdp方向变化，在需求工况下，内盘管温度也就必定低于实际露点温度，从而达到除湿的目的。
通过上述设置方式，不同的设定温度Ts对应不同的目标露点温度Tdp，不同的目标露点温度Tdp对应不同的目标盘管温度Tet，即不同的设定温度对Ts应不同的目标盘管温度Tet，这样就可以针对不同的需求工况灵活调整除湿程度，能够避免达不到除湿效果或者过度除湿的情况的发生，从而能够更好地调整室内空间的湿度。
步骤S205：比较室内环境温度Ta与设定温度Ts、内盘管温度Te与目标盘管温度Tet，根据比较结果调整空调器的运行参数；
步骤S206：退出制冷除湿模式。
图3是本发明一种实施例的空调器的控制方法的结构示意图三，如图3所示，空调器的控制方法包括：
步骤S301：空调器开始运行，选择制冷除湿模式；
步骤S302：获取室内环境温度Ta和设定温度Ts；
步骤S303：比较室内环境温度Ta和设定温度Ts，若Ta≥Ts+1，则执行步骤S304；若否，则执行步骤S305；
步骤S304：控制压缩机的运行频率和室外风机的转速上升；
步骤S305：若Ts-1≤Ta≤Ts，则执行步骤S306；若否，则执行步骤S307；
步骤S306：控制压缩机的运行频率和室外风机的转速保持不变；
步骤S307：若Ta≤Ts-1，则执行步骤S308；若否，则返回步骤S303；
步骤S308：退出制冷除湿模式。
在本实施例中，若室内环境温度Ta高于设定温度Ts+1，则通过控制器使压缩机的运行频率和室外风机的转速上升，压缩机的运行频 率上升，这就增大了空调器的制冷量，而室外风机的转速上升会增大室外机的散热量，也就会增大空调器的制冷量，这样也就可以快速降低室内环境温度Ta，使之快速靠近设定温度Ts。若室内环境温度Ta高于设定温度Ts-1低于设定温度Ts，此时，室内环境温度Ta与设定温度相差不大，则保持压缩机的运行频率和室外风机的转速不变。若室内环境温度Ta小于设定温度Ts，则说明此时室内环境温度Ta正好符合用户的需求，则可以退出空调制冷除湿模式。通过这样的设置方式，就能够更好地调整室内环境的温度，使之尽快达到用户的期望值，提升用户体验。
需要说明的是，本实施例中，Ts+1和Ts-1中的1表示预留的调控余量，并不表示具体的数值，本领域技术人员可以根据具体的设计需求灵活选择该调控余量，如0.5等。
图4是本发明一种实施例的空调器的控制方法的结构示意图四，如图4所示，空调器的控制方法包括：
步骤S401：空调器开始运行，选择制冷除湿模式；
步骤S402：获取室内环境温度Ta和设定温度Ts，比较室内环境温度Ta和设定温度Ts，若Ta≥Ts+1，则执行步骤S403；
步骤S403：控制压缩机的运行频率和室外风机的转速上升；
步骤S404：获取室内环境温度Ta和设定温度Ts，比较室内环境温度Ta和设定温度Ts；若Ta≥Ts+1，则执行步骤S405；
步骤S405：检测压缩机的运行频率是否为最大频率、室外风机的转速是否为最高转速；若是，则执行步骤S406；若否，则返回步骤S402；
步骤S406：使压缩机的运行频率以最大频率运行、室外风机的转速以最高转速运行；
步骤S407：获取内盘管温度Te和目标盘管温度Tet，比较内盘管温度Te和目标盘管温度Tet；若Te＞Tet，则执行步骤S408；若否，则执行步骤S409；
步骤S408：控制室内风机的转速下降；
步骤S409：若Te＝Tet，则执行步骤S410；若否，则执行步骤S411；
步骤S410：控制室内风机的转速保持不变；
步骤S411：若Te＜Tet，则执行步骤S412；若否，则返回步骤S407；
步骤S412：控制室内风机的转速上升。
上述步骤S402与步骤S407可以同步执行，也可以先执行步骤S402后执行步骤S407，本领域技术人员可以根据具体的应用场景灵活选择两个步骤的执行顺序，只要能够实现温度和湿度的同时控制即可。
在本实施例中，在室内环境温度Ta大于设定温度Ts+1时，使压缩机的运行频率和室外风机的转速上升，增大空调器的制冷量，降低室内环境温度Ta。同时，比较内盘管温度Te和目标盘管温度Tet，根据内盘管温度Te和目标盘管温度Tet的大小，调整室内风机的转速，如内盘管温度Te＞目标盘管温度Tet时，使室内风机的转速下降，这样，空调器的制冷需求量也就减小了，即空气带走的冷量也就减少了，而空调器能够提供的制冷量并没有减小，这样内盘管温度Te就会降低，直至与目标盘管温度Tet接近。通过这样的方式，就能够同时使室内环境温度Ta接近设定温度Ts、内盘管温度Te接近目标盘管温度Tet，从而达到了同时调整室内空间的温度和湿度的目的。
图5是本发明一种实施例的空调器的控制方法的结构示意图五，如图5所示，空调器的控制方法包括：
步骤S501：空调器开始运行，选择制冷除湿模式；
步骤S502：获取室内环境温度Ta和设定温度Ts，比较室内环境温度Ta和设定温度Ts，若Ts-1≤Ta≤Ts，则执行步骤S503；若否，则执行步骤S504；
步骤S503：控制压缩机的运行频率和室外风机的转速保持不变；
步骤S504：获取内盘管温度Te和目标盘管温度Tet，比较内盘管温度Te和目标盘管温度Tet，若Te＞Tet，则执行步骤S505；若否，则执行步骤S506；
步骤S505：控制室内风机的转速下降；
步骤S506：若Te＝Tet，则执行步骤S507；若否，则执行步骤S508；
步骤S507：控制室内风机的转速保持不变；
步骤S508：若Te＜Tet，则执行步骤S509；若否，则返回步骤S504；
步骤S509：控制室内风机的转速上升。
上述步骤S502与步骤S504可以同步执行，也可以先执行步骤S502后执行步骤S504，本领域技术人员可以根据具体的应用场景灵活选择两个步骤的执行顺序，只要能够实现温度和湿度的同时控制即可。
在本实施例中，在室内环境温度Ta大于等于设定温度Ts-1小于等于设定温度Ts时，室内环境温度Ta与设定温度Ts相近，此时，无需调整压缩机的频率和室外风机的转速，保持不变即可。同时，比较内盘管温度Te和目标盘管温度Tet，根据内盘管温度Te和目标盘管温度Tet的大小，调整室内风机的转速，如内盘管温度Te＞目标盘管温度Tet时，使室内风机的转速下降，直至与目标盘管温度Tet接近。
本实施例中，为了实现空调器实现温度和湿度的同时控制，在调整压缩机的运行频率、室外风机的转速和室内风机的转速之外，同时还会调整电子膨胀阀的开度，以便确保空调器的稳定运行。下面结合附图来说明本发明的调节电子膨胀阀的开度的可能的实现方式。
图6是本发明一种实施例的空调器的控制方法的结构示意图六，如图6所示，空调器的控制方法包括：
步骤S601：空调器开始运行，选择制冷除湿模式；
步骤S602：获取压缩机的冷凝温度的最大值、最小值和室外环境温度Tao；
步骤S603：根据压缩机的冷凝温度的最大值、最小值和室外环境温度Tao确定目标排气温度Tdt；
步骤S604：获取当前排气温度Td；
步骤S605：计算所述当前排气温度Td与所述目标排气温度Tdt的差值，根据所述当前排气温度Td与所述目标排气温度Tdt的差值调整电子膨胀阀的开度。
上述步骤S605与步骤S402、步骤S407或者是步骤S605与步骤S502、步骤S504可以同时执行，也可以先按照步骤S402、步骤S407、步骤S605或者步骤S502、步骤S504、步骤S605的顺序执行，还可以按照步骤S407、步骤S402、步骤S605，或者步骤S504、步骤S502、步骤S605或者其他可能的顺序执行，或者也可以是仅执行步骤S605或者步骤S402和步骤S407或者步骤S502和步骤S504，只要确保空调器在稳定运行的同时能够实现温度和湿度的同时控制即可。
压缩机的冷凝温度通常为一个范围，如28℃～65℃，为了防止温度偏差导致超出压缩机允许的而运行范围，在计算时，通常取冷凝温 度范围为29℃～63℃。这样，压缩机的冷凝温度的最大值为63℃，最小值为29℃。
目前，电子膨胀阀的开度通常是采用目标吸气过热度查表或者目标排气过热度分段查表方法来进行调节的，不过采用目标吸气过热度查表方法的缺点是吸气温度和盘管温度相差不大，过热度精度不够，容易出现调阀不当的问题，并且，目前大部分空调器通常采用毛细管分流，较难保证良好的分流一致性，导致用于计算目标吸气过热度的内盘管温度也很难保证良好的一致性，盘管温度之间的偏差较大，导致过热度查表调阀的精度较低。尤其在配管较长、落差较大的场合，由于存在系统压力损失，导致吸气过热度失真，再根据据此得到的目标吸气过热度调阀，就无法满足最佳性能的要求。通过目标排气过热度分段查表进行电子膨胀阀调阀控制时，由于分段数量有限，通常不能适应较大的室外环境温度范围，在各种环境温度下，空调器不能保证最佳运行温度，不能很好的进行温度和湿度的控制。
本实施例中，通过当前排气温度Td与目标排气温度Tdt的差值来调整电子膨胀阀的开度，其中，当前排气温度Td可以通过空调器配置的排气温度传感器检测得到，随着空调器运行工况的不同，当前排气温度也会有所不同；而根据压缩机的冷凝温度和室外环境温度计算得到的目标排气温度Tdt与室外环境温度Tao直接相关，即目标排气温度Tdt会随着室外环境温度Tao的变化而变化，步骤S603中计算得到的目标排气温度Tdt就是一个动态值。通过这样的设置方式，空调器就能够根据不同的室外环境温度Tao以及不同的运行工况灵活调整电子膨胀阀的开度，在各种工况条件下，自动调整电子膨胀阀的开度，与压缩机的运行频率、室外风机的转速以及室内风机的转速的调整相适应，从而达到控制室内空间的温度和湿度的目的，确保空调器的高效、稳定运行。
图7是本发明一种实施例的空调器的控制方法的结构示意图七，如图7所示，空调器的控制方法包括：
步骤S701：空调器开始运行，选择制冷除湿模式；
步骤S702：获取压缩机的冷凝温度的最大值、最小值和室外环境温度；
步骤S703：根据压缩机的冷凝温度的最大值、最小值和室外环境温度Tao确定目标排气温度Tdt；
步骤S704：获取当前排气温度Td，计算当前排气温度Td与目标排气温度Tdt的差值，若Td-Tdt＜-1℃，则执行步骤S705；若否，则执行步骤S706；
步骤S705：减小电子膨胀阀的开度；
电子膨胀阀的开度直接影响到流向室内机的冷媒的流量。当Td-Tdt＜-1℃时，说明当前排气温度Td过低，需要提高当前排气温度Td，通过减小电子膨胀阀的开度，提高内盘管温度Te，回流至压缩机的冷媒的温度就会升高，这样也就能够提高当前排气温度Td。同时，内盘管温度Te与空调器的除湿能力相关，内盘管温度Te升高，必然会导致空调器除湿能力降低，这样也就能够避免过度除湿，使得室内环境的温度和湿度处于一个比较合适的区间范围内，确保了室内环境的舒适性。
步骤S706：若Td-Tdt＞1℃，则执行步骤S707；若否，则执行步骤S708；
步骤S707：增大电子膨胀阀的开度；
当Td-Tdt＞1℃时，说明当前排气温度Td过高，需要降低当前排气温度Td，增大电子膨胀阀的开度，降低内盘管温度Te，回流至压缩机的冷媒的温度就会降低，这样也就能够适当降低当前排气温度Td。同时，内盘管温度Te与空调器的除湿能力相关，内盘管温度Te降低，必然会导致空调器除湿能力的提高，这样也就能够确保空调器的除湿能力。
步骤S708：若-1℃≤Td-Tdt≤1℃，则执行步骤S709；若否，则返回步骤S704；
步骤S709：保持电子膨胀阀的开度不变。
当-1℃≤Td-Tdt≤1℃时，说明当前排气温度Td处于一个比较合适的范围内，无需改变电子膨胀阀的开度。
本实施例中，无需通过目标过热度查表或者排气温度查表来调整电子膨胀阀的开度，而是根据压缩机的冷凝温度和室外环境温度Tao计算得到目标排气温度Tdt来调整电子膨胀阀的开度，通过该方法计算得到的目标排气温度Tdt能够更加精准地反应空调器的真实状态，并且能够实时根据室外环境温度Tao的变换实时调整，这样在各种工况条件下都能够实时得到与室外环境温度Tao相对应的目标排气温度Tdt，调整更加精准、快捷。
而通过前述压缩机的运行频率、室外风机的转速以及室内风机的转速的调整，必然会造成空调器的运行工况的改变，当前排气温度Td也会随之改变，即当前排气温度Td与目标排气温度Tdt的差值与空调器的实际运行工况有关，能够反映空调器的运行工况的实际情形，在不同的运行工况下，就能够根据不同的差值来对电子膨胀阀进行调整，从而能够更好地实现空调器的温度和湿度的同时控制。
综上所述，在本发明的优选技术方案中，比较设定温度和室内环境温度，根据设定温度和室内环境温度的大小，通过控制器使压缩机的运行频率和室外风机的转速上升或者保持不变，以便达到调整室内空间的温度的目的；根据设定温度和目标相对湿度确定目标露点温度，再根据目标露点温度计算得到目标盘管温度，比较目标盘管温度和内盘管温度，通过控制器使室内风机的转速下降或者保持不变或者上升，进而降低内盘管的温度或者保持内盘管温度不变或者提高内盘管的温度，以便达到除湿的目的；根据压缩机的冷凝温度范围和室外环境温度确定目标排气温度，比较当前排气温度和目标排气温度，调整电子膨胀阀的开度。通过上述设置方式，就能够实现空调器同时控制温度和湿度，实现温湿双控。
至此，已经结合附图所示的优选实施方式描述了本发明的技术方案，但是，本领域技术人员容易理解的是，本发明的保护范围显然不局限于这些具体实施方式。在不偏离本发明的原理的前提下，本领域技术人员可以对相关技术特征作出等同的更改或替换，这些更改或替换之后的技术方案都将落入本发明的保护范围之内。

Claims (10)

  1. 一种空调器的控制方法，其特征在于，所述控制方法包括：
    获取设定温度Ts和目标相对湿度φ；
    获取室内环境温度Ta和内盘管温度Te，根据设定温度Ts和所述目标相对湿度φ确定需求工况下的目标盘管温度Tet；
    比较所述室内环境温度Ta与所述设定温度Ts以及比较所述内盘管温度Te与目标盘管温度Tet，根据比较结果调整所述空调器的运行参数。
  2. 根据权利要求1所述的控制方法，其特征在于，所述空调器包括室内机和室外机，所述室内机包括室内风机，所述室外机包括压缩机、室外风机和节流装置，
    所述空调器的运行参数包括压缩机的运行频率、室外风机的转速、室内风机的转速以及节流装置的开度中的一种或者几种。
  3. 根据权利要求1所述的控制方法，其特征在于，所述“根据设定温度Ts和所述目标相对湿度φ确定需求工况下的目标盘管温度Tet”包括：
    根据设定温度Ts和所述目标相对湿度φ，确定需求工况下的目标露点温度Tdp；
    根据所述需求工况下的目标露点温度Tdp，确定所述需求工况下的目标盘管温度Tet。
  4. 根据权利要求3所述的控制方法，其特征在于，所述“根据设定温度Ts和所述目标相对湿度φ，确定需求工况下的目标露点温度Tdp”具体为：
    根据下列公式确定所述露点温度Tdp：
    Tdp＝(C 1φ 2+C 2φ+C 3)×Ts-(C 4φ 2+C 5φ+C 6)
    其中，C 1、C 2、C 3、C 4、C 5和C 6为系数，Ts为所述设定温度，φ为所述目标相对湿度，Tdp为所述设定温度Ts所对应的露点温度。
  5. 根据权利要求4所述的控制方法，其特征在于，所述C 1为-0.1，所述C 2为0.32，所述C 3为0.784，所述C 4为15，所述C 5为-40.59，所述C 6为25.761。
  6. 根据权利要求2所述的控制方法，其特征在于，所述“比较所述室内环境温度Ta与所述设定温度Ts以及比较所述内盘管温度Te与目标盘管温度Tet，根据比较结果调整所述空调器的运行参数”包括：
    当Ta≥Ts+1时，使所述压缩机的运行频率和所述室外风机的转速上升，选择性地调整室内风机的转速和/或节流装置的开度；
    当Ts-1≤Ta≤Ts时，使所述压缩机的运行频率和所述室外风机的转速保持不变，选择性地调整所述室内风机的转速和/或所述节流装置的开度。
  7. 根据权利要求6所述的控制方法，其特征在于，“当Ta≥Ts+1时，使所述压缩机的运行频率和所述室外风机的转速上升，选择性地调整所述室内风机的转速和/或所述节流装置的开度”具体为：
    当Te＞Tet时，使所述室内风机的转速下降；
    当Te＝Tet时，使所述室内风机的转速保持不变；
    当Te＜Tet时，使所述室内风机的转速上升。
  8. 根据权利要求6所述的控制方法，其特征在于，“当Ts-1≤Ta≤Ts时，使所述压缩机的运行频率和所述室外风机的转速保持不变，选择性地调整所述室内风机的转速和/或所述节流装置的开度”包括：
    当Te＞Tet时，使所述室内风机的转速下降；
    当Te＝Tet时，使所述室内风机的转速均保持不变；
    当Te＜Tet时，使所述室内风机的转速上升。
  9. 根据权利要求6所述的控制方法，其特征在于，所述“当Ta≥Ts+1时，使所述压缩机的运行频率和所述室外风机的转速上升，选择性地调整室内风机的转速和/或节流装置的开度；当Ts-1≤Ta≤Ts时，使所述压缩机的运行频率和所述室外风机的转速保持不变，选择性地调整所述室内风机的转速和/或所述节流装置的开度”还包括：
    获取当前排气温度和目标排气温度；
    比较所述当前排气温度和所述目标排气温度，根据比较结果调整所述节流装置的开度。
  10. 一种空调器，其特征在于，所述空调器包括控制器，所述控制器用于执行上述权利要求1至9中任一项所述的空调器的控制方法。
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