CN113983639B - Control method of air conditioner - Google Patents

Control method of air conditioner Download PDF

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Publication number
CN113983639B
CN113983639B CN202111322705.1A CN202111322705A CN113983639B CN 113983639 B CN113983639 B CN 113983639B CN 202111322705 A CN202111322705 A CN 202111322705A CN 113983639 B CN113983639 B CN 113983639B
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China
Prior art keywords
user
air outlet
temperature
heat exchanger
indoor heat
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CN202111322705.1A
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CN113983639A (en
Inventor
李德鹏
黄民柱
陈禹贵
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Hisense Guangdong Air Conditioning Co Ltd
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Hisense Guangdong Air Conditioning Co Ltd
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Priority to CN202111322705.1A priority Critical patent/CN113983639B/en
Publication of CN113983639A publication Critical patent/CN113983639A/en
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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
    • 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
    • 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
    • F24F11/84—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 using valves
    • 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
    • F24F11/88—Electrical aspects, e.g. circuits
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • 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

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Signal Processing (AREA)
  • Fuzzy Systems (AREA)
  • Mathematical Physics (AREA)
  • Fluid Mechanics (AREA)
  • Thermal Sciences (AREA)
  • Air Conditioning Control Device (AREA)

Abstract

The invention discloses a control method of an air conditioner, which comprises the following steps that S1, when the air conditioner operates in a refrigerating mode, whether the first air outlet temperature is in a refrigerating comfort temperature range is judged; s2, when the result in the step S1 is negative and the first air outlet temperature is higher than the highest temperature in the refrigerating comfort temperature range, acquiring the position information of the user; s3, judging whether the second air outlet temperature at one side of the user falls within a refrigerating comfort temperature range; s4, when the result in the step S3 is negative and the second air outlet temperature is higher than the highest temperature in the refrigerating comfort temperature range, increasing the refrigerant flow of the indoor heat exchanger at one side of a user; s5, when the result in the step S3 is negative and the second air outlet temperature is smaller than the lowest temperature of the refrigerating comfortable temperature range, reducing the refrigerant flow of the indoor heat exchanger at one side of a user; and S6, when the result in the step S1 or the step S3 is yes, the current running state is maintained. Therefore, the addition can be beneficial to meeting different requirements of users, and constant-temperature comfortable air outlet of the air conditioner is realized.

Description

Control method of air conditioner
Technical Field
The invention relates to the technical field of air conditioners, in particular to a control method of an air conditioner.
Background
In the prior art, an indoor fan is arranged on an indoor unit of an air conditioner to guide airflow to pass through a heat exchanger and exchange heat with indoor air so as to achieve the effects of refrigeration and heating. The indoor unit is provided with an ambient temperature sensor at the air inlet of the indoor unit for collecting the temperature of return air flow, and a coil temperature sensor is arranged on the indoor heat exchanger for collecting the temperature of the heat exchanger, so that the attention to the air outlet temperature is less, and the comfort of a user can be influenced when the air outlet temperature is too low and too high.
Disclosure of Invention
The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, an object of the present invention is to propose a control method of an air conditioner.
According to the control method of the air conditioner, which comprises two indoor air outlets, two indoor heat exchangers and two indoor fans, wherein each indoor heat exchanger and each indoor fan are respectively opposite to the corresponding indoor air outlet, the control method comprises the following steps:
s1, judging whether the first air outlet temperature falls in a refrigerating comfort temperature range or not when the air conditioner is in refrigerating operation;
s2, when the judgment result in the step S1 is negative and the first air outlet temperature is higher than the highest temperature in the refrigerating comfortable temperature range, acquiring the position information of the user;
S3, judging whether the second air outlet temperature of the indoor air outlet on the side where the user is located is within the refrigerating comfortable temperature range;
s4, when the judgment result in the step S3 is negative and the second air outlet temperature is higher than the highest temperature in the refrigerating comfort temperature range, increasing the refrigerant flow of the indoor heat exchanger on the side where the user is located;
s5, when the judgment result in the step S3 is negative and the second air outlet temperature is smaller than the lowest temperature of the refrigerating comfortable temperature range, reducing the refrigerant flow of the indoor heat exchanger on the side where the user is located;
and S6, when the judgment result in the step S1 or the step S3 is yes, the current running state is kept unchanged.
According to the control method of the air conditioner, the first air outlet temperature and the second air outlet temperature of the air conditioner are judged and compared with the refrigerating comfortable temperature range, so that the temperature of air blown out by the air conditioner is located in the refrigerating comfortable temperature range, the flow of a refrigerant flowing to one side of a user is regulated by combining the position information of the user, the purpose of improving or reducing the second air outlet temperature is achieved, the use experience of the user is improved, the air outlet modes of the air conditioner are diversified, different requirements of the user are met, and constant-temperature comfortable air outlet of the air conditioner in a refrigerating mode is achieved.
In some embodiments, in step S4, the refrigerant flow of the indoor heat exchanger on the side where the user is located is increased while the refrigerant flow of the indoor heat exchanger on the side where the user is located is decreased.
In some embodiments, after step S4, further comprising:
s41, judging whether the refrigerant flow of the indoor heat exchanger at the side where the user is located reaches the maximum;
s42, when the judgment result in the step S41 is yes, the rotating speed of the indoor fan at the side where the user is located is reduced;
and S43, returning to the step S4 when the judgment result in the step S41 is negative.
In some embodiments, in step S5, the refrigerant flow of the indoor heat exchanger on the side where the user is located is reduced while the refrigerant flow of the indoor heat exchanger on the side where the user is located is increased.
In some embodiments, after step S5, further comprising:
s51, judging whether the refrigerant flow of the indoor heat exchanger at the side where the user is located is smaller than or equal to the refrigerant flow of the indoor heat exchanger at the side far away from the user;
s52, returning to the step S1 when the judgment result in the step S51 is yes;
and S53, if the judgment result in the step S51 is negative, returning to the step S5.
In some embodiments, the adjustment of the refrigerant flow rate of the indoor heat exchanger is achieved through a three-way valve.
In some embodiments, the second air outlet temperature is detected by an indoor air outlet temperature sensor disposed at the indoor air outlet on the side where the user is located, or the second air outlet temperature is the sum of the temperature of the indoor heat exchanger on the side where the user is located and a heat exchanger temperature compensation value.
In some embodiments, the first air outlet temperature is an arithmetic average of air outlet temperatures at the two indoor air outlets, or the first air outlet temperature is a sum of an arithmetic average of temperatures of the two indoor heat exchangers and a heat exchanger temperature compensation value.
In some embodiments, step S2 specifically includes:
s21, when the judgment result in the step S1 is negative and the first air outlet temperature is higher than the highest temperature in the refrigerating comfort temperature range, the operation frequency of the compressor is increased;
s22, judging whether the operating frequency of the compressor reaches a maximum operating frequency;
s23, when the judgment result in the step S22 is yes, acquiring the position information of the user;
and S24, returning to the step S21 when the judgment result in the step S22 is negative.
In some embodiments, after step S1, further comprising:
s71, when the judgment result in the step S1 is NO, and the first air outlet temperature is smaller than the lowest temperature of the refrigeration comfort temperature range, reducing the operation frequency of the compressor;
s72, judging whether the operating frequency of the compressor is reduced to a minimum operating frequency;
s73, when the judgment result in the step S72 is yes, the rotating speed of the indoor fan is increased;
if the determination in step S72 is negative, step S71 is returned to.
In some embodiments, prior to step S1, further comprising:
s01, acquiring geographic position information and user characteristic information of the air conditioner;
s02, searching the refrigerating comfortable temperature range of the air conditioner during refrigerating operation in a comfortable temperature table established based on the geographical position information of the air conditioner and the user characteristic information.
According to the control method of the air conditioner according to any one of the above embodiments of the present invention,
s1', judging whether the third air outlet temperature falls within a heating comfort temperature range when the air conditioner is in heating operation;
s2', when the judgment result in the step S1' is NO, and the third air outlet temperature is smaller than the lowest temperature of the heating comfort temperature range, acquiring the position information of the user;
S3', judging whether the fourth air outlet temperature of the indoor air outlet on the side where the user is located is within the heating comfort temperature range;
s4', when the judgment result in the step S3' is no, and the fourth air outlet temperature is smaller than the lowest temperature of the heating comfort temperature range, increasing the refrigerant flow of the indoor heat exchanger at the side where the user is located;
s5', when the judgment result in the step S3' is negative and the fourth air outlet temperature is higher than the highest temperature of the heating comfort temperature range, reducing the refrigerant flow of the indoor heat exchanger at the side where the user is located;
s6', when the judgment result in the step S1' or the step S3' is yes, the current running state is kept unchanged.
In some embodiments, in step S4', the refrigerant flow rate of the indoor heat exchanger on the side where the user is located is increased while the refrigerant flow rate of the indoor heat exchanger on the side where the user is located is decreased.
In some embodiments, after step S4', further comprising:
s41', judging whether the refrigerant flow of the indoor heat exchanger at the side where the user is located reaches the maximum;
s42', when the judgment result in the step S41' is yes, the rotating speed of the indoor fan at the side where the user is located is reduced;
If the determination in step S41 'is negative, step S4' is returned.
In some embodiments, in step S5', the refrigerant flow rate of the indoor heat exchanger on the side where the user is located is reduced while the refrigerant flow rate of the indoor heat exchanger on the side where the user is located is increased.
In some embodiments, after step S5', further comprising:
s51', judging whether the refrigerant flow of the indoor heat exchanger at the side where the user is located is smaller than or equal to the refrigerant flow of the indoor heat exchanger at the side far away from the user;
s52', when the judgment result in the step S51' is yes, returning to the step S1';
s53', if the determination in step S51' is negative, the flow returns to step S5'.
In some embodiments, step S2' specifically includes:
s21', when the judgment result in the step S1' is NO and the third air outlet temperature is smaller than the lowest temperature of the heating comfort temperature range, the operation frequency of the compressor is increased;
s22', judging whether the operating frequency of the compressor reaches a maximum operating frequency;
s23', when the judgment result in the step S22' is yes, acquiring the position information of the user;
S24', when the determination in step S22' is no, the process returns to step S21'.
In some embodiments, after step S1', further comprising:
s71', when the judging result in the step S1' is NO and the third air outlet temperature is greater than the highest temperature of the heating comfort temperature range, the operation frequency of the compressor is reduced;
s72', judging whether the operating frequency of the compressor is reduced to a minimum operating frequency;
s73', when the judgment result in the step S72' is yes, the rotating speed of the indoor fan is increased;
if the determination in step S72 'is negative, step S71' is returned.
In some embodiments, prior to step S1', further comprising:
s01', obtaining the geographical position information and the user characteristic information of the air conditioner;
s02', searching a comfortable temperature range for heating of the air conditioner in a comfortable temperature table established based on the geographical position information of the air conditioner and the user characteristic information.
Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
The foregoing and/or additional aspects and advantages of the invention will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:
fig. 1 is a logic block diagram of an air conditioner in a cooling operation according to an embodiment of the present invention.
Fig. 2 is a logic block diagram of an air conditioner in a heating operation according to an embodiment of the present invention.
Fig. 3 is a perspective exploded view of an air conditioner according to an embodiment of the present invention.
Fig. 4 is a schematic cross-sectional view of an air conditioner according to an embodiment of the present invention.
Fig. 5 is a schematic flow diagram of a refrigerant in a cooling operation of an air conditioner according to an embodiment of the present invention.
Fig. 6 is a schematic flow diagram of a refrigerant in a heating operation of an air conditioner according to an embodiment of the present invention.
Reference numerals:
an air conditioner 100;
an indoor air outlet 10; a first air outlet 11; a second air outlet 12;
an indoor heat exchanger 20; a first heat exchanger 21; a second heat exchanger 22;
an indoor fan 30; a first fan 31; a second fan 32;
a three-way valve 40; an outlet air temperature sensor 50; a four-way valve 60; an outdoor heat exchanger 70; a compressor 80; a throttle device 90.
Detailed Description
Embodiments of the present invention are described in detail below, and the embodiments described with reference to the accompanying drawings are exemplary, and a control method of an air conditioner 100 according to the embodiments of the present invention is described below with reference to fig. 1 to 6. The T air outlet 1 is the first air outlet temperature, the T air outlet 2 is the second air outlet temperature, the TC1 is the maximum value of the refrigeration comfort temperature range, and the TC2 is the minimum value of the refrigeration comfort temperature range.
According to the control method of the air conditioner 100 of the embodiment of the present invention, the air conditioner 100 includes two indoor air outlets 10, two indoor heat exchangers 20 and two indoor fans 30, each indoor heat exchanger 20 and each indoor fan 30 is opposite to the corresponding indoor air outlet 10, respectively, and in the cooling mode of the air conditioner 100, as shown in fig. 1, the control method includes the following steps:
s1, judging whether the first air outlet temperature falls within a refrigerating comfort temperature range when the air conditioner 100 operates in a refrigerating mode; s2, when the judgment result in the step S1 is negative and the first air outlet temperature is higher than the highest temperature in the refrigerating comfort temperature range, acquiring the position information of the user; s3, judging whether the second air outlet temperature of the indoor air outlet 10 on the side where the user is located is within a refrigerating comfortable temperature range; s4, when the judgment result in the step S3 is negative and the second air outlet temperature is higher than the highest temperature of the refrigerating comfortable temperature range, increasing the refrigerant flow of the indoor heat exchanger 20 at the side where the user is located; s5, when the judgment result in the step S3 is negative and the second air outlet temperature is smaller than the lowest temperature of the refrigerating comfortable temperature range, reducing the refrigerant flow of the indoor heat exchanger 20 at the side where the user is located; and S6, when the judgment result in the step S1 or the step S3 is yes, the current running state is kept unchanged.
As shown in fig. 3, the two indoor air outlets 10, the two indoor heat exchangers 20, and the two indoor fans 30 of the air conditioner 100 are symmetrically disposed in the left-right direction of the air conditioner 100, respectively. For example, the two indoor air outlets 10 include a first air outlet 11 and a second air outlet 12, the two indoor heat exchangers 20 include a first heat exchanger 21 and a second heat exchanger 22, the two indoor fans 30 include a first fan 31 and a second fan 32, the first fan 31 directs wind to the first heat exchanger 21 to blow the wind out of the first air outlet 11, and the second fan 32 directs wind to the second heat exchanger 22 to blow the wind out of the second air outlet 12.
When the air conditioner 100 is refrigerating, the air conditioner 100 can be compared with a preset refrigerating comfortable temperature range according to the current first air outlet temperature, and if the first air outlet temperature is in the refrigerating comfortable temperature range, the air conditioner 100 keeps the current running state or mode; if the first air outlet temperature is greater than the maximum value of the refrigerating comfortable temperature range, the position sensor in the air conditioner 100 can acquire the position information of the user and judge the second air outlet temperature of the side where the user is located, and the second air outlet temperature is within the refrigerating comfortable temperature range, so that the current running state is maintained; if the second air outlet temperature is greater than the maximum value of the refrigerating comfortable temperature range, adjusting the flow of the refrigerant flowing to the side where the user is located in the air conditioner 100, and increasing the refrigerating capacity of the side so as to reduce the second air outlet temperature; if the second air outlet temperature is smaller than the minimum value of the refrigerating comfortable temperature range, the refrigerant flow of the air conditioner 100 to the side where the user is located is adjusted, the refrigerating capacity of the side is reduced, and the second air outlet temperature is increased, so that the comfortable experience of the user is met.
Therefore, the first air outlet temperature and the second air outlet temperature of the air conditioner 100 are judged and compared with the refrigerating comfortable temperature range, so that the temperature of air blown out by the air conditioner 100 is located in the refrigerating comfortable temperature range, the flow of the refrigerant flowing to one side of a user is regulated by combining the position information of the user, the purpose of improving or reducing the second air outlet temperature is achieved, the use experience of the user is improved, the air outlet mode of the air conditioner 100 is diversified, different requirements of the user are met, and the constant-temperature comfortable air outlet of the air conditioner 100 in the refrigerating mode is realized.
Further, in step S4, the refrigerant flow of the indoor heat exchanger 20 on the side where the user is located is increased, and the refrigerant flow of the indoor heat exchanger 20 on the side far from the user is reduced. Thus, the flow rate of the refrigerant of the indoor heat exchanger 20 at the user side is increased, the flow rate of the refrigerant of the indoor heat exchanger at the remote side from the user side is reduced, the temperature at the user side and the energy consumption of the air conditioner 100 can be reduced while the constant flow rate of the refrigerant in the air conditioner 100 is maintained, and the electricity cost is saved.
In some optional embodiments of the present invention, after step S4, the method further includes: s41, judging whether the refrigerant flow of the indoor heat exchanger 20 at the side where the user is located reaches the maximum; s42, when the judgment result in the step S41 is yes, the rotating speed of the indoor fan 30 at the side where the user is located is reduced; and S43, returning to the step S4 when the judgment result in the step S41 is negative.
As shown in fig. 1, when the second air outlet temperature is greater than the maximum value of the cooling comfort temperature range, the flow rate of the refrigerant flowing to the indoor heat exchanger 20 on the side where the user is located of the air conditioner 100 is adjusted, and the flow rate of the refrigerant flowing to the user side is detected by the sensors arranged on the two indoor heat exchangers 20. When the flow rate of the refrigerant flowing to the user side does not reach the maximum value, the refrigerating comfort air outlet can be realized by adjusting the flow rate of the refrigerant, and the second air outlet temperature can be reduced.
Therefore, the second air outlet temperature of the user side can be reduced by adjusting the amount of the refrigerant flowing to the user side and the side far away from the user of the air conditioner 100, and the adjustment range of the refrigerant flow is increased so as to meet the requirements of different users.
In some embodiments, in step S5, the refrigerant flow of the indoor heat exchanger 20 on the side of the user is reduced, and the refrigerant flow of the indoor heat exchanger 20 on the side of the user is increased. For example, when the user feel cool or is located at the air outlet of the air conditioner 100 for a long time, the air conditioner 100 can reduce the amount of the refrigerant flowing to the indoor heat exchanger 20 at the user side, increase the amount of the refrigerant flowing to the indoor heat exchanger 20 far from the user side, and increase the air outlet temperature at the user side according to the identified user position information and the human feel signal collected by the infrared human feel sensor arranged inside the air conditioner 100.
Thereby, the flow rate of the refrigerant flowing to the user side is reduced, the flow rate of the refrigerant far away from the user side is increased, so that the air outlet temperature of the user side is increased, the human body feeling of the user side is increased, the constant flow rate of the refrigerant in the main pipeline is ensured, and the comfortable air outlet of the indoor air conditioner 100 is maintained.
According to some embodiments of the present invention, as shown in fig. 1, after step S5, the method further includes: s51, judging whether the refrigerant flow of the indoor heat exchanger 20 at the side where the user is located is smaller than or equal to the refrigerant flow of the indoor heat exchanger 20 at the side far away from the user; s52, returning to the step S1 when the judgment result in the step S51 is yes; and S53, if the judgment result in the step S51 is negative, returning to the step S5.
When the flow rate of the refrigerant flowing to the indoor heat exchanger 20 at the user side is greater than the flow rate of the refrigerant flowing to the indoor heat exchanger 20 at the user side, the air conditioner 100 can continuously adjust the flow rates of the refrigerant flowing to the corresponding indoor heat exchanger 20 at the user side and the user side according to the identified position information and the human sense signal of the user, so as to realize the air outlet at different temperatures. When the flow rate of the refrigerant in the indoor heat exchanger 20 at the side where the user is located is less than or equal to the flow rate of the refrigerant away from the indoor heat exchanger 20 at the side where the user is located, the outlet air temperature of the air conditioner 100 is returned to the initial cooling comfort temperature to be correspondingly adjusted.
Therefore, the air conditioner 100 can reduce the flow rate of the refrigerant flowing to the indoor heat exchanger 20 at the side where the user is located according to the ratio of the flow rates of the refrigerant at the side where the user is located and the side far away from the user, reduce the air outlet temperature at the side where the user is located, and can form a cycle with the step S1, so that the intelligent degree of the air conditioner 100 is higher.
As shown in fig. 3 and 5, the refrigerant flow rate of the indoor heat exchanger 20 is adjusted by the three-way valve 40. One end of the three-way valve 40 is connected with the main pipeline of the air conditioner 100, the other two ends are respectively connected with the first heat exchanger 21 and the second heat exchanger 22, and the three-way valve 40 can realize intelligent control according to the control circuit of the air conditioner 100. Therefore, the three-way valve 40 is arranged to realize the adjustment of the flow rate of the refrigerant flowing to the two indoor heat exchangers 20, the adjustment and diversion mode is simple, the effect is obvious, the difference of the air outlet temperatures of the left area and the right area of the air conditioner 100 can be realized, and the differentiated requirements of users are met.
According to some embodiments of the present invention, as shown in fig. 4, the second outlet air temperature is detected by an indoor outlet air temperature sensor 50 provided at the indoor outlet 10 on the side where the user is located, or the second outlet air temperature is the sum of the temperature of the indoor heat exchanger 20 on the side where the user is located and the heat exchanger temperature compensation value.
The second air outlet temperature is the temperature blown out by the indoor air outlet 10 after the user approaches the indoor air outlet 10 at one side, the second air outlet temperature is the detection value detected by the air outlet temperature sensor 50 arranged between the indoor air outlet 10 and the indoor heat exchanger 20, or when the air conditioner 100 is not provided with the air outlet temperature sensor 50, the second air outlet temperature is the sum of the temperature measured by a coil temperature sensor (not shown) on the indoor heat exchanger 20 and the temperature compensation value of the indoor heat exchanger 20, and the coil temperature sensor can accurately measure the temperature of the indoor heat exchanger 20. Therefore, the second air outlet temperature is obtained in multiple ways, the applicability of the control method of the air conditioner 100 is improved, the improved cost can be reduced, and the research and development time can be shortened.
In some embodiments, the first air outlet temperature is an arithmetic average of the air outlet temperatures at the two indoor air outlets 10, for example, the two indoor air outlets 10 are respectively provided with an air outlet temperature sensor 50, and the air outlet temperature sensors 50 can respectively detect the air outlet temperatures of the two indoor air outlets 10. Or the first outlet air temperature is the sum of the arithmetic mean value of the temperatures of the two indoor heat exchangers 20 and the heat exchanger temperature compensation value. For example, coil temperature sensors are provided at both indoor heat exchangers 20 to detect temperatures of both indoor heat exchangers 20, respectively. Therefore, the temperature at the first air outlet 11 and the second air outlet 12 is obtained and calculated to serve as the first air outlet temperature, or the arithmetic average of the temperatures at the first heat exchanger 21 and the second heat exchanger 22 is obtained and combined with the temperature compensation value of the first heat exchanger 21 and the second heat exchanger 22 to serve as the first air outlet temperature, the two obtained first air outlet temperature modes are reasonable, the accuracy of the temperature value is higher, the comparison of the first air outlet temperature and the preset refrigerating comfortable temperature range is facilitated, the comfortableness of the air outlet temperature of the air conditioner 100 is improved, and the influence of the overhigh or overlow air outlet temperature on the user experience on the product is avoided.
In combination with table 1, the air outlet temperature may be calculated, for example, T air outlet=t pipe+t pipe complement, where T air outlet represents the air outlet temperature of the indoor air outlet 10 of the air conditioner in the comfort temperature range, T pipe is the coil temperature value of the indoor heat exchanger 20 detected by the coil temperature sensor, and T pipe complement is the compensation value of the coil temperature of the indoor heat exchanger 20, where the value of T pipe complement may be equal to the compensation value of the rotational speed of the indoor fan 30 of the air conditioner 100 under the steady operation. For example, under the cooling operation of the air conditioner 100, the T-pipe compensation=3℃, and under the heating operation of the air conditioner 100, the T-pipe compensation= -6 ℃, so that the air-out temperature at different rotational speeds can be calculated.
TABLE 1
As shown in fig. 1, step S2 specifically includes: s21, when the judgment result in the step S1 is NO and the first air outlet temperature is higher than the highest temperature in the refrigerating comfort temperature range, the operation frequency of the compressor 80 is increased; s22, judging whether the operation frequency of the compressor 80 reaches the maximum operation frequency; s23, when the judgment result in the step S22 is yes, acquiring the position information of the user; and S24, returning to the step S21 when the judgment result in the step S22 is negative.
When the air conditioner 100 is operating normally, particularly in summer with a high temperature, the first air outlet temperature is higher than the cooling comfort temperature range, the cooling comfort temperature can be achieved by increasing the operating frequency of the compressor 80 and reducing the first air outlet temperature. If the operation frequency of the compressor 80 is increased to the maximum, the first air outlet temperature is still greater than the maximum value of the cooling comfort temperature range, and the air conditioner 100 may collect the position information of the user to adjust the air outlet temperature. And when the determinations in step S1 and step S2 are both negative, the air conditioner 100 will display or report the sensor failure or abnormality, prompting the user to process in time.
Thus, in the normal cooling operation of the air conditioner 100, when the first air outlet temperature is higher than the maximum value of the cooling comfort temperature range, the first air outlet temperature can be reduced by increasing the operation frequency of the compressor 80, so that the comfortable air outlet of the air conditioner 100 is realized.
Further, as shown in fig. 1, after step S1, the method further includes: s71, when the judgment result in the step S1 is NO and the first air outlet temperature is smaller than the lowest temperature of the refrigeration comfort temperature range, the operation frequency of the compressor 80 is reduced; s72, judging whether the operation frequency of the compressor 80 is reduced to the minimum operation frequency; s73, when the judgment result in the step S72 is yes, the rotating speed of the indoor fan 30 is increased; if the determination in step S72 is negative, step S71 is returned to.
When the first air outlet temperature is smaller than the minimum value of the refrigerating comfort temperature range, the first air outlet temperature can be increased by reducing the frequency of the compressor 80, and if the frequency of the compressor 80 has been reduced to the minimum, the first air outlet temperature is still smaller than the refrigerating comfort temperature range at the moment, and the second air outlet temperature can be increased by increasing the rotating speed of the indoor fan 30. Therefore, the first air outlet temperature can be raised by reducing the rotation speed of the compressor 80 or raising the rotation speed of the indoor fan 30, so that the staged adjustment of the first air outlet temperature is realized, and the air outlet temperature adjustment range is increased.
Optionally, as shown in fig. 1, before step S1, the method further includes: s01, acquiring geographic position information and user characteristic information of the air conditioner 100; s02, searching a cooling comfortable temperature range of the air conditioner 100 during cooling operation in a comfortable temperature table established based on the geographical position information of the air conditioner 100 and the user characteristic information.
Specifically, before the air conditioner 100 is installed, a worker establishes a cooling comfort temperature range database in the air conditioner 100 in combination with the geographical environment in which the air conditioner 100 is located and the characteristics of the user, and during the working process of the air conditioner 100, the first air outlet temperature and the second air outlet temperature are adjusted by taking the preset cooling comfort temperature range as a reference, so that the air conditioner 100 can always blow out comfortable air.
Therefore, the geographical position information and the user characteristic information of the air conditioner 100 are acquired to adjust the refrigerating comfortable temperature range of the air conditioner 100, so that the air conditioner 100 can identify the optimal refrigerating comfortable temperature range when in operation, and the first air outlet temperature and the second air outlet temperature are controlled, so that users in the area have good use experience.
The cooling comfort temperature ranges are shown in table 2.
TABLE 2
Where TC1 is the maximum value of the cooling comfort temperature range and TC2 is the minimum value of the cooling comfort temperature range. For example, for a neutral population in the neutral region, the cooling comfort temperature range may be 18 ℃ to 16 ℃,18 ℃ being the maximum value of the cooling comfort temperature range, and 16 ℃ being the minimum value of the cooling comfort temperature range.
Since the compressor operating frequency F (n) =f (n-1) +f1, where F (n) represents the operating frequency of the compressor 80 at the moment, F (n-1) is the operating frequency of the compressor 80 that was operated last time, and F1 represents the frequency compensation value of the compressor 80.
Specifically, referring to table 3, the T air outlet (n) represents the last air outlet temperature, the T air outlet (n-1) represents the last air outlet temperature, the F1 may be calculated by a difference Δt1 between the two air outlet temperatures, and a difference Δt2 between the average value of the last air outlet temperature and the comfort temperature range in the two times, and the corresponding F1 value is found according to the table of experimental data, so that the operating frequency of the current air conditioner 100 may be calculated, the operating frequency of the compressor 80 required for comfortable air outlet in the limit environment may be realized, and comfortable air outlet may be realized. For example, Δt1= -3 ℃, Δt2= -6 ℃, and a table look-up may obtain the F1 value.
TABLE 3 Table 3
According to the control method of the air conditioner 100 according to any one of the embodiments of the present invention, as shown in fig. 2, in the heating mode of the air conditioner 100, the control method includes steps of S1', when the air conditioner 100 is in heating operation, determining whether the third outlet air temperature falls within the heating comfort temperature range; s2', when the judgment result in the step S1' is NO and the third air outlet temperature is smaller than the lowest temperature of the heating comfort temperature range, acquiring the position information of the user; s3', judging whether the fourth air outlet temperature of the indoor air outlet 10 on the side where the user is located falls within a heating comfort temperature range; s4', when the judgment result in the step S3' is negative and the fourth air outlet temperature is smaller than the lowest temperature of the heating comfort temperature range, the refrigerant flow of the indoor heat exchanger 20 at the side where the user is located is increased; s5', when the judgment result in the step S3' is negative and the fourth air outlet temperature is higher than the highest temperature of the heating comfort temperature range, reducing the refrigerant flow of the indoor heat exchanger 20 at the side where the user is located; s6', when the judgment result in the step S1' or the step S3' is yes, the current running state is kept unchanged.
When the air conditioner 100 heats, the air conditioner 100 can compare with a preset heating comfort temperature range according to the current third air outlet temperature, and if the third air outlet temperature is within the heating comfort temperature range, the air conditioner 100 keeps the current running state or mode; if the third air outlet temperature is smaller than the minimum value of the heating comfort temperature range, the position sensor in the air conditioner 100 can acquire the position information of the user and judge the fourth air outlet temperature of the side where the user is located, and the fourth air outlet temperature is in the heating comfort temperature range, so that the current running state is maintained; if the fourth air outlet temperature is smaller than the minimum value of the heating comfortable temperature range, adjusting the flow of the refrigerant flowing to the side where the user is located in the air conditioner 100, and increasing the heating amount of the side so as to increase the fourth air outlet temperature; if the fourth air outlet temperature is greater than the maximum value of the heating comfortable temperature range, the refrigerant flow of the air conditioner 100 to the side where the user is located is adjusted, the heating amount of the side is reduced, and the fourth air outlet temperature is reduced, so that the comfortable experience of the user is satisfied.
The third air outlet temperature is an arithmetic average value of the air outlet temperatures of the two indoor air outlets 10 when the user is not close to the indoor air outlets 10, or may be obtained by converting the sum of the arithmetic average value of the temperatures of the two indoor heat exchangers 20 and the heat exchanger temperature compensation value. The fourth outlet air temperature is detected by an indoor outlet air temperature sensor 50 provided at the indoor outlet 10 on the side where the user is located, or the fourth outlet air temperature is the sum of the temperature of the indoor heat exchanger 20 on the side where the user is located and the heat exchanger temperature compensation value. And the T air outlet 3 is the third air outlet temperature, and the T air outlet 4 is the fourth air outlet temperature. TH1 is the maximum value of the heating comfort temperature range, and TH2 is the minimum value of the heating comfort temperature range.
Therefore, the third air outlet temperature and the fourth air outlet temperature of the air conditioner 100 are judged and compared with the heating comfortable temperature range, so that the temperature of air blown out by the air conditioner 100 is in the heating comfortable temperature range, the flow of the refrigerant flowing to one side of a user is regulated by combining the position information of the user, the purpose of improving or reducing the fourth air outlet temperature is achieved, the use experience of the user is improved, the differentiated requirements of different users are met, and the constant-temperature comfortable air outlet of the air conditioner 100 is realized.
As shown in fig. 2, in step S4', the refrigerant flow rate of the indoor heat exchanger 20 on the side where the user is located is increased, and at the same time, the refrigerant flow rate of the indoor heat exchanger 20 on the side far from the user is decreased. Thus, the flow rate of the refrigerant in the indoor heat exchanger 20 on the user side is increased, the flow rate of the refrigerant in the indoor heat exchanger on the user side is reduced, the temperature on the user side is reduced while the flow rate of the refrigerant in the air conditioner 100 is kept constant, and the electricity cost is saved.
Further, after step S4', the method further includes: s41', judging whether the refrigerant flow of the indoor heat exchanger 20 at the side where the user is located reaches the maximum; s42', when the judgment result in the step S41' is yes, the rotating speed of the indoor fan 30 at the side where the user is located is reduced; if the determination in step S41 'is negative, step S4' is returned.
As shown in fig. 2, when the fourth outlet air temperature is less than the minimum value of the heating comfort temperature range, the flow rate of the refrigerant flowing to the indoor heat exchanger 20 on the user side of the air conditioner 100 is adjusted, the flow rate of the refrigerant flowing to the user side is detected by the sensors arranged on the two indoor heat exchangers 20, and when the flow rate of the refrigerant flowing to the user side is maximum, the fourth outlet air temperature is still greater than the maximum value of the heating comfort temperature range, and the fourth outlet air temperature can be increased by reducing the rotation speed of the indoor fan 30 on the user side. When the flow rate of the refrigerant flowing to the user side does not reach the maximum value, the comfortable heating air outlet can be realized by adjusting the flow rate of the refrigerant, and the fourth air outlet temperature can be increased.
Therefore, the fourth air outlet temperature of the user side can be increased by adjusting the amount of the refrigerant flowing to the user side and the side far away from the user of the air conditioner 100, and the adjustment range of the refrigerant flow is increased so as to meet the requirements of different users.
In some embodiments, in step S5', the refrigerant flow of the indoor heat exchanger 20 on the side of the user is reduced while the refrigerant flow of the indoor heat exchanger 20 on the side of the user is increased. For example, when the user feels hot or is located at the air outlet of the air conditioner 100 for a long time, the air conditioner 100 can reduce the amount of the refrigerant flowing to the indoor heat exchanger 20 at the user side, increase the amount of the refrigerant flowing to the indoor heat exchanger 20 at the remote side, and reduce the air outlet temperature at the user side according to the identified user position information and the human-sensing signal collected by the infrared human-sensing sensor disposed inside the air conditioner 100.
Therefore, the flow rate of the refrigerant flowing to the user side is reduced, the flow rate of the refrigerant far away from the user side is increased, so that the air outlet temperature of the user side is reduced, the human body feeling of the user side is increased, the constant flow rate of the refrigerant in the main pipeline is ensured, the constant indoor temperature and the comfortable air outlet of the indoor side of the air conditioner 100 are maintained, and the influence on surrounding users is reduced.
Specifically, as shown in fig. 2, after step S5', the method further includes: s51', judging whether the refrigerant flow of the indoor heat exchanger 20 at the side where the user is located is smaller than or equal to the refrigerant flow of the indoor heat exchanger 20 at the side far away from the user; s52', when the judgment result in the step S51' is yes, returning to the step S1'; s53', if the determination in step S51' is negative, the flow returns to step S5'.
When the flow rate of the refrigerant flowing to the indoor heat exchanger 20 at the user side is greater than the flow rate of the refrigerant flowing to the indoor heat exchanger 20 at the far away from the user side, the air conditioner 100 can continuously adjust the flow rates of the refrigerant flowing to the corresponding indoor heat exchanger 20 at the user side and the far away from the user side according to the identified position information and the human sense signal of the user, so as to realize the air outlet at different temperatures at the user side and the far away from the user side. When the flow rate of the refrigerant in the indoor heat exchanger 20 at the side where the user is located is less than or equal to the flow rate of the refrigerant away from the indoor heat exchanger 20 at the side where the user is located, the air outlet temperature of the air conditioner 100 returns to the initial heating comfort temperature to perform corresponding circulation adjustment.
Therefore, the air conditioner 100 can reduce the flow rate of the refrigerant flowing to the indoor heat exchanger 20 at the side where the user is located according to the ratio of the flow rates of the refrigerant at the side where the user is located and the side far away from the user, reduce the air outlet temperature at the side where the user is located, and can form a cycle with the step S1', so that the intelligent degree of the air conditioner 100 is higher.
Referring to fig. 2, step S2' specifically includes: s21', when the judgment result in the step S1' is NO and the third air outlet temperature is smaller than the lowest temperature of the heating comfort temperature range, the operation frequency of the compressor 80 is increased; s22', judging whether the operation frequency of the compressor 80 reaches the maximum operation frequency; s23', when the judgment result in the step S22' is yes, acquiring the position information of the user; s24', when the determination in step S22' is no, the process returns to step S21'.
When the air conditioner 100 is operating normally, particularly in winter with a low temperature, and the third outlet air temperature is greater than the heating comfort temperature range, the heating comfort temperature can be achieved by reducing the frequency of operation of the compressor 80 and reducing the third outlet air temperature. If the operation frequency of the compressor 80 is increased to the minimum value, the third air outlet temperature is still smaller than the minimum value of the heating comfort temperature range, and the air conditioner 100 may collect the position information of the user to adjust the air outlet temperature. And when the determinations in step S1 'and step S2' are both negative, the air conditioner 100 will display or report the sensor failure or abnormality, prompting the user to process in time.
Thus, in the normal heating operation of the air conditioner 100, when the third air outlet temperature is higher than the maximum value of the heating comfort temperature range, the comfortable air outlet of the air conditioner 100 can be realized by increasing the third air outlet temperature by increasing the operation frequency of the compressor 80.
Optionally, as shown in fig. 2, after step S1', the method further includes: s71', when the judgment result in the step S1' is NO and the third air outlet temperature is greater than the highest temperature of the heating comfort temperature range, the operation frequency of the compressor 80 is reduced; s72', judging whether the operation frequency of the compressor 80 is reduced to the minimum operation frequency; s73', when the judgment result in the step S72' is yes, the rotating speed of the indoor fan 30 is increased; if the determination in step S72 'is negative, step S71' is returned.
When the third air outlet temperature is greater than the maximum value of the heating comfort temperature range, the frequency of the compressor 80 can be reduced, if the frequency of the compressor 80 has been reduced to the minimum, the third air outlet temperature is still greater than the heating comfort temperature range, and the third air outlet temperature can be reduced by increasing the rotation speed of the indoor fan 30. Therefore, the third air outlet temperature can be reduced by reducing the rotation speed of the compressor 80 or lifting the indoor fan 30, so that the step adjustment of the third air outlet temperature is realized, the size of the adjusting range is increased, and the requirements of different areas and people are met.
As shown in fig. 2, before step S1', the method further includes: s01', acquiring geographic position information and user characteristic information of the air conditioner 100; s02' searches a heating comfort temperature range of the air conditioner 100 during heating operation in a comfort temperature table established based on the geographical location information of the air conditioner 100 and the user characteristic information.
Specifically, before the air conditioner 100 is installed, a worker establishes a heating comfort temperature range database in the air conditioner 100 in combination with the geographical environment in which the air conditioner 100 is located and the characteristics of the user, and during the working process of the air conditioner 100, the third air outlet temperature and the fourth air outlet temperature are adjusted by taking the preset heating comfort temperature range as a reference, so that the air conditioner 100 can always blow out comfortable air.
Therefore, the geographical position information and the user characteristic information of the air conditioner 100 are acquired to adjust the heating comfort temperature range of the air conditioner 100, so that the air conditioner 100 can identify the optimal heating comfort temperature range during working, and the air outlet temperature which does not heat the comfort temperature range can be adjusted to control the third air outlet temperature and the fourth air outlet temperature, so that users in the area have good use experience.
The heating comfort temperature ranges are shown in table 4.
TABLE 4 Table 4
Wherein, TH1 is the maximum value of the heating comfortable temperature range, and TH2 is the minimum value of the heating comfortable temperature range. For example, for a neutral population in the neutral region, the heating comfort temperature range may be 40 ℃ to 42 ℃,42 ℃ being the maximum value of the heating comfort temperature range, and 40 ℃ being the minimum value of the heating comfort temperature range.
As shown in fig. 6, the air conditioner 100 further includes a four-way valve 60, an outdoor heat exchanger 70, and a throttle device 90, and the flow process of the refrigerant in the heating operation: the flow direction of the refrigerant for heating operation is the compressor 80, the four-way valve 60, the first heat exchanger 21, the second heat exchanger 22, the three-way valve 40, the throttling device 90, the outdoor heat exchanger 70, the four-way valve 60 and the compressor 80.
The process of adjusting the temperature of the air conditioner 100 will be specifically described with reference to fig. 1, 3 and 5, taking a cooling operation as an example.
Inside the air conditioner 100, the first fan 31 and the second fan 32, the first heat exchanger 21 and the second heat exchanger 22, and the first air outlet 11 and the second air outlet 12 are respectively arranged in the left-right direction of the air conditioner 100, wherein the first fan 31 drives and controls the air outlet of the first air outlet 11, the first heat exchanger 21 controls the temperature of the air blown out by the first air outlet 11, the second fan 32 drives and controls the air outlet of the second air outlet 12, the second heat exchanger 22 controls the temperature of the air blown out by the second air outlet 12, and a three-way valve 40 is connected between the first heat exchanger 21 and the second heat exchanger 22, so that the communication between the first heat exchanger 21 and the second heat exchanger and the main pipeline of the refrigerant is realized, and the quantity of the refrigerant flowing to the first heat exchanger 21 and the second heat exchanger 22 can be controlled. The air outlet temperature sensors 50 are arranged between the first air outlet 11 and the first heat exchanger 21, between the second air outlet 12 and the second temperature sensor, the air outlet temperature sensors 50 can be embedded at the end parts of the left and right ends of the air conditioner 100, and the average value of temperature signals acquired by the two air outlet temperature sensors 50 is used as the first air outlet temperature.
As shown in fig. 5, the refrigerant flows in the direction of the compressor 80, the four-way valve 60, the outdoor heat exchanger 70, the throttle device 90, and the three-way valve 40, and then flows to the first heat exchanger 21 and the second heat exchanger 22, respectively, and finally flows back to the compressor 80 from the four-way valve 60.
When the first outlet air temperature is within the cooling comfort temperature range, the air conditioner 100 maintains the normal operation. When the first outlet air temperature is less than the minimum value of the cooling comfort temperature range, the first outlet air temperature may be increased by decreasing the frequency of the compressor 80 and increasing the rotational speed of the indoor fan 30. When the first air outlet temperature is greater than the maximum value of the refrigerating comfortable temperature range, the first air outlet temperature can be adjusted by increasing the frequency of the compressor 80, so that the first air outlet temperature is reduced. When the frequency of the compressor 80 is increased to the highest, the first air outlet temperature is still greater than the refrigerating comfortable temperature range, and the air outlet temperature can be adjusted by collecting the position information of the user and combining the information collected by the infrared human sensor, and the air outlet temperature is the second air outlet temperature.
Specifically, as shown in fig. 1, when the second air outlet temperature is in the cooling comfort temperature range, the air conditioner 100 keeps normal air outlet, when the second air outlet temperature is greater than the maximum value of the cooling comfort temperature range, the three-way valve 40 is adjusted to increase the flow rate of the refrigerant flowing to the evaporator on one side of the user, and in the range where the flow rate of the refrigerant can be adjusted, whether the cooling comfort air outlet is realized is judged once per adjustment, and the adjustment is stopped when the cooling comfort temperature range is satisfied, so that the current running state is maintained. When the flow rate of the refrigerant flowing to the user side is regulated to the maximum, and the second air outlet temperature is still greater than the refrigerating comfort temperature range, the rotation speed of the indoor fan 30 at the user side is reduced to realize the reduction of the second air outlet temperature. When the second air outlet temperature is smaller than the minimum value of the comfortable cooling temperature range, the three-way valve 40 can be adjusted to reduce the flow of the refrigerant flowing to the indoor heat exchanger 20 at the user side, increase the flow of the refrigerant flowing to the indoor heat exchanger 20 at the remote side, and maintain the flowing state of the refrigerant when the refrigerant can be adjusted step by step in the adjustable range to be comfortable air outlet, thereby realizing the lifting of the second air outlet temperature, and returning to the step one of the control method of the air conditioner 100 when the flow of the refrigerant of the indoor heat exchanger 20 at the user side is adjusted to be smaller than or equal to the flow of the refrigerant of the indoor heat exchanger 20 at the remote side, thereby realizing the automatic control under the refrigerating operation of the air conditioner 100 and realizing the function of comfortable air outlet.
In the description of the present invention, it should be understood that the terms "center", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element in question must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention.
In the description of the invention, a "first feature" or "second feature" may include one or more of such features. In the description of the present invention, "plurality" means two or more. In the description of the invention, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, and may also include the first and second features not being in direct contact but being in contact with each other by another feature therebetween. In the description of the invention, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature.
In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples.
While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the invention, the scope of which is defined by the claims and their equivalents.

Claims (10)

1. The control method of the air conditioner is characterized by comprising two indoor air outlets, two indoor heat exchangers and two indoor fans, wherein each indoor heat exchanger and each indoor fan are respectively opposite to the corresponding indoor air outlet, and the control method comprises the following steps of:
s1, judging whether the first air outlet temperature falls in a refrigerating comfort temperature range or not when the air conditioner is in refrigerating operation; the first air outlet temperature is an arithmetic average value of the air outlet temperatures at the two indoor air outlets; or the first air outlet temperature is the sum of the arithmetic average value of the temperatures of the two indoor heat exchangers and the temperature compensation value of the heat exchangers;
S2, when the judgment result in the step S1 is negative and the first air outlet temperature is higher than the highest temperature in the refrigerating comfortable temperature range, acquiring the position information of the user;
s3, judging whether the second air outlet temperature of the indoor air outlet on the side where the user is located is within the refrigerating comfortable temperature range;
s4, when the judgment result in the step S3 is negative and the second air outlet temperature is higher than the highest temperature in the refrigerating comfort temperature range, increasing the refrigerant flow of the indoor heat exchanger on the side where the user is located;
s5, when the judgment result in the step S3 is negative and the second air outlet temperature is smaller than the lowest temperature of the refrigerating comfortable temperature range, reducing the refrigerant flow of the indoor heat exchanger on the side where the user is located;
s6, when the judgment result in the step S1 or the step S3 is yes, keeping the current running state unchanged;
the step S2 specifically comprises the following steps:
s21, when the judgment result in the step S1 is negative and the first air outlet temperature is higher than the highest temperature in the refrigerating comfort temperature range, the operation frequency of the compressor is increased;
s22, judging whether the operating frequency of the compressor reaches a maximum operating frequency;
S23, when the judgment result in the step S22 is yes, acquiring the position information of the user;
s24, returning to the step S21 when the judgment result in the step S22 is negative;
in the step S4 of the process,
the refrigerant flow of the indoor heat exchanger at the side where the user is located is increased, and meanwhile, the refrigerant flow of the indoor heat exchanger at the side far away from the user is reduced; ensuring the constant flow of the refrigerant in the main pipeline;
in the step S5 of the process,
the refrigerant flow of the indoor heat exchanger at the side where the user is located is reduced, and meanwhile, the refrigerant flow of the indoor heat exchanger at the side far away from the user is increased; ensuring the constant flow of the refrigerant in the main pipeline;
after step S5, the method further includes:
s51, judging whether the refrigerant flow of the indoor heat exchanger at the side where the user is located is smaller than or equal to the refrigerant flow of the indoor heat exchanger at the side far away from the user;
s52, returning to the step S1 when the judgment result in the step S51 is yes;
and S53, if the judgment result in the step S51 is negative, returning to the step S5.
2. The control method of an air conditioner according to claim 1, further comprising, after step S4:
s41, judging whether the refrigerant flow of the indoor heat exchanger at the side where the user is located reaches the maximum;
S42, when the judgment result in the step S41 is yes, the rotating speed of the indoor fan at the side where the user is located is reduced;
and S43, returning to the step S4 when the judgment result in the step S41 is negative.
3. The method of controlling an air conditioner according to claim 1, wherein the adjustment of the refrigerant flow rate of the indoor heat exchanger is achieved through a three-way valve.
4. The control method of an air conditioner according to claim 1, wherein the second outlet air temperature is detected by an indoor outlet air temperature sensor provided at the indoor outlet on the side where the user is located; or (b)
The second air outlet temperature is the sum of the temperature of the indoor heat exchanger on the side where the user is located and the temperature compensation value of the heat exchanger.
5. The control method of an air conditioner according to claim 1, further comprising, after step S1:
s71, when the judgment result in the step S1 is NO, and the first air outlet temperature is smaller than the lowest temperature of the refrigeration comfort temperature range, the operation frequency of the compressor is reduced;
s72, judging whether the operating frequency of the compressor is reduced to a minimum operating frequency;
s73, when the judgment result in the step S72 is yes, the rotating speed of the indoor fan is increased;
If the determination in step S72 is negative, step S71 is returned to.
6. The control method of an air conditioner according to claim 1, further comprising, prior to step S1:
s01, acquiring geographic position information and user characteristic information of the air conditioner;
s02, searching a refrigerating comfortable temperature range of the air conditioner during refrigerating operation in a comfortable temperature table established based on the geographical position information of the air conditioner and the user characteristic information.
7. The method for controlling an air conditioner according to any one of claims 1 to 6, wherein,
s1', judging whether the third air outlet temperature falls within a heating comfort temperature range when the air conditioner is in heating operation; the third air outlet temperature is an arithmetic average value of the air outlet temperatures at the two indoor air outlets; or the third air outlet temperature is the sum of the arithmetic average value of the temperatures of the two indoor heat exchangers and the temperature compensation value of the heat exchangers;
s2', when the judgment result in the step S1' is NO, and the third air outlet temperature is smaller than the lowest temperature of the heating comfort temperature range, acquiring the position information of the user;
s3', judging whether the fourth air outlet temperature of the indoor air outlet on the side where the user is located is within the heating comfort temperature range;
S4', when the judgment result in the step S3' is no, and the fourth air outlet temperature is smaller than the lowest temperature of the heating comfort temperature range, increasing the refrigerant flow of the indoor heat exchanger at the side where the user is located;
s5', when the judgment result in the step S3' is negative and the fourth air outlet temperature is higher than the highest temperature of the heating comfort temperature range, reducing the refrigerant flow of the indoor heat exchanger at the side where the user is located;
s6', when the judgment result in the step S1' or the step S3' is yes, keeping the current running state unchanged;
the step S2' specifically comprises the following steps:
s21', when the judgment result in the step S1' is NO and the third air outlet temperature is smaller than the lowest temperature of the heating comfort temperature range, the operation frequency of the compressor is increased;
s22', judging whether the operating frequency of the compressor reaches a maximum operating frequency;
s23', when the judgment result in the step S22' is yes, acquiring the position information of the user;
s24', when the judgment result in the step S22' is NO, returning to the step S21';
in the step S4' of the process,
the refrigerant flow of the indoor heat exchanger at the side where the user is located is increased, and meanwhile, the refrigerant flow of the indoor heat exchanger at the side far away from the user is reduced; ensuring the constant flow of the refrigerant in the main pipeline;
In step S5' of the process,
the refrigerant flow of the indoor heat exchanger at the side where the user is located is reduced, and meanwhile, the refrigerant flow of the indoor heat exchanger at the side far away from the user is increased; ensuring the constant flow of the refrigerant in the main pipeline;
after step S5', further comprising:
s51', judging whether the refrigerant flow of the indoor heat exchanger at the side where the user is located is smaller than or equal to the refrigerant flow of the indoor heat exchanger at the side far away from the user;
s52', when the judgment result in the step S51' is yes, returning to the step S1';
s53', if the determination in step S51' is negative, the flow returns to step S5'.
8. The method according to claim 7, further comprising, after step S4':
s41', judging whether the refrigerant flow of the indoor heat exchanger at the side where the user is located reaches the maximum;
s42', when the judgment result in the step S41' is yes, the rotating speed of the indoor fan at the side where the user is located is reduced;
if the determination in step S41 'is negative, step S4' is returned.
9. The method according to claim 7, further comprising, after step S1':
S71', when the judgment result in the step S1' is NO and the third air outlet temperature is higher than the highest temperature in the heating comfort temperature range, the operation frequency of the compressor is reduced;
s72', judging whether the operating frequency of the compressor is reduced to a minimum operating frequency;
s73', when the judgment result in the step S72' is yes, the rotating speed of the indoor fan is increased;
if the determination in step S72 'is negative, step S71' is returned.
10. The method according to claim 7, further comprising, prior to step S1':
s01', obtaining the geographical position information and the user characteristic information of the air conditioner;
s02', searching a heating comfortable temperature range of the air conditioner during heating operation in a comfortable temperature table established based on the geographical position information of the air conditioner and the user characteristic information.
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CN107741082A (en) * 2016-08-12 2018-02-27 青岛海尔智能技术研发有限公司 It is a kind of for the control method of air-conditioning, device and air-conditioning
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