CN113883684B - Air conditioner noise control method for increasing deep sleep time and air conditioner - Google Patents

Air conditioner noise control method for increasing deep sleep time and air conditioner Download PDF

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CN113883684B
CN113883684B CN202111152370.3A CN202111152370A CN113883684B CN 113883684 B CN113883684 B CN 113883684B CN 202111152370 A CN202111152370 A CN 202111152370A CN 113883684 B CN113883684 B CN 113883684B
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value
noise
deep sleep
difference
indoor
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CN113883684A (en
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褚运通
崔国栋
陈旭
王海胜
张铭
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Qingdao Haier Air Conditioner Gen Corp Ltd
Qingdao Haier Central Air Conditioner Co Ltd
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Qingdao Haier Air Conditioner Gen Corp Ltd
Qingdao Haier Central Air Conditioner Co Ltd
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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
    • F24F11/50—Control or safety arrangements characterised by user interfaces or communication
    • F24F11/54—Control or safety arrangements characterised by user interfaces or communication using one central controller connected to several sub-controllers
    • 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
    • F24F11/50—Control or safety arrangements characterised by user interfaces or communication
    • F24F11/61—Control or safety arrangements characterised by user interfaces or communication using timers
    • 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
    • F24F11/62—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
    • F24F11/65—Electronic processing for selecting an operating mode
    • F24F11/66—Sleep mode
    • 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
    • F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
    • F24F11/79—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling the direction of the supplied air
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2130/00—Control inputs relating to environmental factors not covered by group F24F2110/00
    • F24F2130/40—Noise
    • 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)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Human Computer Interaction (AREA)
  • Fuzzy Systems (AREA)
  • Mathematical Physics (AREA)
  • Fluid Mechanics (AREA)
  • Air Conditioning Control Device (AREA)

Abstract

The present invention relates to an air conditioner noise control method for increasing deep sleep time and an air conditioner. The air conditioner includes an indoor unit having a deep sleep mode, and in the deep sleep mode, the air conditioner noise control method includes: detecting a real-time indoor background noise value; determining a difference between the indoor background noise value and a deep sleep noise threshold; when the absolute value of the difference value is larger than or equal to a first difference value threshold value, the motor rotating speed of the indoor unit is adjusted; and when the absolute value of the difference value is smaller than the first difference value threshold value, adjusting the air deflector angle of the indoor unit. According to the air conditioner noise control method, indoor background noise can be adjusted to the deep sleep noise threshold, so that a user can increase deep sleep time under the deep sleep noise threshold.

Description

Air conditioner noise control method for increasing deep sleep time and air conditioner
Technical Field
The present invention relates to the field of air conditioning, and more particularly, to an air conditioning noise control method for increasing deep sleep time and an air conditioner.
Background
In modern life, air conditioning has become an indispensable necessity for life. The air conditioner on the market can provide various functions such as refrigeration, heating, air supply, dehumidification and the like so as to create a regulated environment which can meet different requirements of users. For example, at night in summer, the air conditioner is usually in a cooling operation state all the time, and at night in winter, the air conditioner can be in a heating operation state all the time so as to provide comfortable indoor temperature for people, thereby promoting sleeping of people. Air conditioners generally include an outdoor unit and an indoor unit connected to the outdoor unit, including but not limited to, an air conditioner unit and a separate unit. In the operating state, the fans of the outdoor unit and the indoor unit are kept running, so noise is generated. The outdoor unit is generally disposed outdoors, so that noise generated therefrom does not affect users indoors, whereas noise of the indoor unit directly disposed in the indoor environment has a relatively large effect on users. Along with the acceleration of life rhythm, people have higher and higher requirements on sleep quality. Accordingly, attention is paid to noise generated in the operation of the indoor unit of the air conditioner.
For example, in chinese patent application CN111735174a, a method for controlling sleep mode of an air conditioner is disclosed. Specifically, when the air conditioner is in the sleep mode, a current noise value and a current noise threshold set by a user are obtained, the current noise threshold and the current noise value both correspond to a current sleep period, the current rotation speed of the fan is increased until reaching a target rotation speed under the condition that the current noise value is smaller than the current noise threshold, and the current rotation speed of the fan is reduced until reaching the target rotation speed under the condition that the current noise value is larger than the current noise threshold, so that the purpose of reaching the noise threshold is achieved, and the requirement of the user can be met. However, such a method of adjusting the rotational speed of the blower alone sometimes fails to achieve the purpose of precisely controlling the noise of the indoor unit. More importantly, this noise control method does not take into account the effect of indoor background noise on the deep sleep time of a person.
Accordingly, there is a need in the art for a new solution to the above-mentioned problems.
Disclosure of Invention
In order to solve the above-mentioned problems in the prior art, that is, in order to solve the technical problems that the noise of an indoor unit cannot be precisely controlled and the deep sleep time of a person cannot be increased by noise control in the prior art, the present invention provides an air conditioner noise control method for increasing the deep sleep time, the air conditioner including an indoor unit having a deep sleep mode, and in the deep sleep mode, the air conditioner noise control method comprising:
Detecting a real-time indoor background noise value;
determining a difference between the indoor background noise value and a deep sleep noise threshold;
when the absolute value of the difference value is larger than or equal to a first difference value threshold value, the motor rotating speed of the indoor unit is adjusted;
and when the absolute value of the difference value is smaller than the first difference value threshold value, adjusting the air deflector angle of the indoor unit.
Researchers find that the indoor background noise affects the deep sleep time of a person, and find that the sleeping is most favored, i.e. the deep sleep time is longest, at an indoor background noise value consistent with the noise value generated by normal breathing of a sleeping person. This indoor background noise value that coincides with the noise value produced by the sleeping person's breath is referred to herein as the "deep sleep noise threshold". Indoor background noise values above or below the deep sleep noise threshold are detrimental to deep sleep. Therefore, when the indoor unit of the air conditioner is in the deep sleep mode, the air conditioner noise control method of the invention detects a real-time indoor background noise value and determines a difference between the real-time indoor background noise value and a deep sleep noise threshold. When the absolute value of the difference is larger than or equal to the first difference threshold, the difference between the indoor background noise value and the deep sleep noise threshold is larger, so that the indoor background noise value is adjusted by adjusting the motor rotation speed of the indoor unit, and the difference between the indoor background noise value and the deep sleep noise threshold is reduced more rapidly. When the absolute value of the difference is smaller than the first difference threshold, the difference between the indoor background noise value and the deep sleep noise threshold is smaller, so that the indoor background noise value can be finely adjusted by adjusting the angle of the air deflector of the indoor unit so as to reach the deep sleep noise threshold. Therefore, the air conditioner noise control method can adjust the indoor background noise to the deep sleep noise threshold, so that the user can increase the deep sleep time under the deep sleep noise threshold.
In the above preferred technical solution of the air conditioning noise control method for increasing deep sleep time, the air conditioning noise control method further includes:
when the absolute value of the difference is larger than or equal to a first difference threshold value and smaller than a second difference threshold value, the motor rotating speed is adjusted by a first rotating speed variable;
when the absolute value of the difference value is larger than or equal to the second difference value threshold value, the motor rotating speed is adjusted by a second rotating speed variable,
wherein the second rotational speed variable is greater than the first rotational speed variable. And setting a second difference threshold larger than the first difference threshold on the basis of the first difference threshold so as to further refine the difference between the indoor background noise value and the deep sleep noise threshold and adjust the motor rotation speed according to different rotation speed variables for different differences. Specifically, when the absolute value of the difference is greater than or equal to a first difference threshold and less than a second difference threshold, the motor rotation speed is adjusted by a first rotation speed variable; when the absolute value of the difference is greater than or equal to a second difference threshold, the motor speed is adjusted with a second speed variable that is greater than the first speed variable so as to more quickly adjust the indoor background noise value.
In the above preferred technical solution of the air conditioning noise control method for increasing deep sleep time, under the condition that the indoor background noise is greater than the deep sleep noise threshold,
when the difference value is larger than or equal to a first difference value threshold value and smaller than a second difference value threshold value, reducing the rotating speed of the motor by a first rotating speed variable;
and when the difference value is greater than or equal to the second difference value threshold value, reducing the motor rotation speed by a second rotation speed variable. The indoor background noise value is larger than the deep sleep noise threshold value, and the indoor background noise value needs to be reduced, so that the motor rotation speed is reduced through the first rotation speed variable and the second rotation speed variable respectively, and the aim of reducing the indoor background noise value towards the deep sleep noise threshold value is fulfilled.
In the above preferred technical solution of the air conditioner noise control method for increasing deep sleep time, under the condition that the indoor background noise value is smaller than the deep sleep noise threshold value,
when the absolute value of the difference is larger than or equal to a first difference threshold value and smaller than a second difference threshold value, increasing the rotating speed of the motor by a first rotating speed variable;
and when the absolute value of the difference value is larger than or equal to the second difference value threshold value, increasing the motor rotation speed by a second rotation speed variable. The indoor background noise value is smaller than the deep sleep noise threshold value, and the indoor background noise value needs to be increased, so that the motor rotation speed is increased through the first rotation speed variable and the second rotation speed variable respectively, and the aim of increasing the indoor background noise value towards the deep sleep noise threshold value is fulfilled.
In the above preferred technical solution of the air conditioner noise control method for increasing deep sleep time, under the condition that the indoor background noise value is greater than the deep sleep noise threshold, increasing the air deflector angle of the indoor unit when the difference value is smaller than the first difference value threshold; or under the condition that the indoor background noise value is smaller than the deep sleep noise threshold value, when the absolute value of the difference value is smaller than the first difference value threshold value, reducing the air deflector angle of the indoor unit. The indoor background noise value is greater than the deep sleep noise threshold, and the indoor background noise value needs to be reduced. Further, in the case that the difference is smaller than the first difference threshold, the indoor background noise value is reduced toward the deep sleep noise threshold by a small extent by increasing the air deflector angle of the indoor unit. Conversely, if the indoor background noise value is smaller than the deep sleep noise threshold, the indoor background noise value needs to be increased. And in the case that the difference value is smaller than the first difference value threshold value, the indoor background noise value is increased toward the deep sleep noise threshold value by a small extent by reducing the air deflector angle of the indoor unit.
In the above preferred technical solution of the air conditioning noise control method for increasing deep sleep time, the air conditioning noise control method further includes:
Providing a noise detector which can communicate with the air conditioner, and automatically detecting the indoor background noise value in the deep sleep mode. The noise detector can automatically detect real-time indoor background noise and send the detected indoor background noise to the indoor unit of the air conditioner. Therefore, the noise detector can detect the indoor background noise value in real time. The noise detector may be arranged at the head of the bed.
In the above preferred technical solution of the air conditioner noise control method for increasing deep sleep time, the step of detecting real-time indoor background noise is re-performed after a predetermined period of time has elapsed after the motor rotation speed of the indoor unit is adjusted or after the air deflector angle of the indoor unit is adjusted. By repeating this and the following steps, the indoor background noise value can be finally brought to the deep sleep noise threshold.
In the above preferred technical solution of the air conditioning noise control method for increasing the deep sleep time, the range of the deep sleep noise threshold is 32db±1dB, preferably 32dB. Typically, 32dB is consistent with noise generated by a person breathing in sleep.
In order to solve the above-mentioned problems in the prior art, that is, in order to solve the technical problems in the prior art that the noise of the indoor units cannot be precisely controlled and the deep sleep time of the person cannot be increased by the noise control, the present invention provides an air conditioner comprising at least one indoor unit and equipped with a wire controller or a remote controller on which a deep sleep key is provided, a controller is provided on each of the indoor units, and the controller is configured to perform the air conditioner noise control method for increasing the deep sleep time according to any one of claims 1 to 9 when an instruction issued by clicking the deep sleep key is received. By using the air conditioner noise control method for increasing the deep sleep time, the air conditioner can increase the deep sleep time of a user, thereby improving the satisfaction degree of the user. Further, the indoor unit can enter a deep sleep mode by clicking the deep sleep key, and the conflict with the use and transmission of the non-sleep time of the user can be avoided by setting the deep sleep key.
Drawings
Preferred embodiments of the present invention are described below with reference to the accompanying drawings, in which:
FIG. 1 is a system schematic diagram of an embodiment of an air conditioner of the present invention;
FIG. 2 is a flowchart of an air conditioning noise control method for increasing a deep sleep time according to the present invention;
FIG. 3 is a flow chart of a first portion of a first embodiment of an air conditioning noise control method for increasing deep sleep time of the present invention;
FIG. 4 is a flow chart of a second portion of the first embodiment of the air conditioning noise control method for increasing deep sleep time of the present invention;
FIG. 5 is a flowchart of a first portion of a second embodiment of an air conditioning noise control method for increasing deep sleep time of the present invention;
fig. 6 is a flowchart of a second portion of a second embodiment of an air conditioning noise control method for increasing a deep sleep time of the present invention.
List of reference numerals:
1. air-conditioning; 10. an outdoor unit; 11. a compressor; 111. an exhaust port; 112. an air suction port; 12. a four-way valve; 13. an outdoor heat exchanger; 14. an outdoor fan; 15. an outdoor electronic expansion valve; 16. an economizer; 161. a supercooling valve; 162. a heat exchanger; 17. a gas-liquid separator; 18. a liquid pipe stop valve; 19. an air pipe stop valve; 20. an indoor unit; 20a, a first indoor unit; 20b, a second indoor unit; 21. an indoor heat exchanger; 22. an indoor fan; 23. a temperature sensor; 24. an indoor electronic expansion valve; 25. a noise sensor; 30. a refrigerant pipe; 31. an exhaust pipe; 32. a liquid tube; 33. a gas pipe; 34. an air suction pipe; 35. a bypass branch.
Detailed Description
Preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are merely for explaining the technical principles of the present invention, and are not intended to limit the scope of the present invention.
In order to solve the technical problems that the noise of an indoor unit cannot be accurately controlled and the deep sleep time of a person cannot be increased through noise control in the prior art, the invention provides an air conditioner noise control method for increasing the deep sleep time, the air conditioner comprises an indoor unit with a deep sleep mode, and in the deep sleep mode, the air conditioner noise control method comprises the following steps:
detecting a real-time indoor background noise value (step S1);
determining a difference between the indoor background noise value and a deep sleep noise threshold (step S2);
when the absolute value of the difference value is greater than or equal to a first difference value threshold value, adjusting the motor rotation speed of the indoor unit (step S3);
and when the absolute value of the difference value is smaller than the first difference value threshold value, adjusting the air deflector angle of the indoor unit (step S4).
Fig. 1 is a system schematic diagram of an embodiment of an air conditioner of the present invention. As shown in fig. 1, in one or more embodiments, the air conditioner 1 of the present invention includes an outdoor unit 10 and 2 parallel indoor units 20, wherein the parallel indoor units 20 are a first indoor unit 20a and a second indoor unit 20b, respectively, and are disposed in different rooms. Alternatively, the air conditioner 1 may have 1, 3, or other suitable number of indoor units. The configuration of each indoor unit 20 may be the same or different according to actual needs. The operation modes of the air conditioner 1 include, but are not limited to, air supply, cooling, heating, and dehumidification modes. The air conditioner 1 is also equipped with a wire controller or a remote controller (not shown in the figure), and a deep sleep key is provided on the wire controller or the remote controller, thereby allowing a user to send an instruction to enter a deep sleep mode to a corresponding indoor unit by clicking the deep sleep key when needed. Further, a noise detector independent of the air conditioner 1 but communicable with the air conditioner may be provided. After the indoor unit receives the deep sleep mode instruction, the noise detector can automatically detect the indoor background noise value. During the deep sleep mode, the air conditioner 1 may simultaneously operate one or more of an air supply, cooling, heating, and dehumidifying mode.
As shown in fig. 1, in one or more embodiments, the outdoor unit 10 includes a compressor 11, a four-way valve 12, an outdoor heat exchanger 13, an outdoor electronic expansion valve 15, and a gas-liquid separator 17. In one or more embodiments, the indoor unit 20 includes an indoor heat exchanger 21, an indoor electronic expansion valve 24, and the like. The outdoor unit 10 and the indoor unit 20 are interconnected by a refrigerant pipe 30 to form a refrigerating circuit allowing a refrigerant to flow therein. Specifically, the compressor 11 has a discharge port 111 and an intake port 112. The discharge port 111 of the compressor 11 is connected to the D port of the four-way valve 12 through the discharge pipe 31. The C-port of the four-way valve 12 is connected to the input of the outdoor heat exchanger 13. The output end of the outdoor heat exchanger 13 is connected with the outdoor electronic expansion valve 15, the indoor electronic expansion valve 24 and the indoor heat exchanger 21 in sequence through a liquid pipe 32. The indoor heat exchanger 21 is connected to the E-port of the four-way valve 12 through a gas pipe 33. The S interface of the four-way valve 12 is connected with the air inlet of the gas-liquid separator 17. The air outlet of the gas-liquid separator 17 is connected with the air suction port 112 of the compressor 11 through the air suction pipe 34, so that a refrigeration cycle loop is formed by interconnection, and the air conditioner 1 can be switched between a refrigeration mode and a heating mode by means of the four-way valve 12.
With continued reference to FIG. 1, in one or more embodiments, the compressor 11 is a screw compressor. Alternatively, the compressor 11 may be a centrifugal compressor, a scroll compressor, or other suitable compressor. Further, the compressor 11 may be configured as two or more compressors connected in parallel. Each compressor 11 may be configured identically or differently, depending on the actual needs.
With continued reference to fig. 1, in one or more embodiments, the outdoor heat exchanger 13 is a fin coil heat exchanger. Alternatively, the outdoor heat exchanger 13 may also be a plate heat exchanger or other suitable heat exchanger. An outdoor fan 14 is also disposed at a position close to the outdoor heat exchanger 13 to improve heat exchange efficiency of the outdoor heat exchanger 13.
With continued reference to fig. 1, in one or more embodiments, a liquid line shut-off valve 18 is provided on the liquid line 32 between the outdoor electronic expansion valve 15 and the indoor electronic expansion valve 24, and a gas line shut-off valve 19 is also provided on the gas line 33 between the E-port of the four-way valve 12 and the indoor heat exchanger 21. The liquid pipe shut-off valve 18 and the gas pipe shut-off valve 19 are normally open, and can be closed in the case of disassembly, maintenance, and the like, so that the refrigerant in the refrigeration circuit is temporarily stored outside the room.
In one or more embodiments, as shown in FIG. 1, the indoor heat exchanger 21 is a fin coil heat exchanger. Alternatively, the indoor heat exchanger 21 may also be a plate heat exchanger or other suitable heat exchanger. An indoor fan 22 is also disposed at a position close to the indoor heat exchanger 21 to improve heat exchange efficiency of the indoor heat exchanger 21. In one or more embodiments, a temperature sensor 23 is provided proximate the indoor heat exchanger 21 to detect the coil temperature of the indoor heat exchanger 21. In one or more embodiments, a noise sensor 25 is further provided in the housing (not shown) of the indoor unit 20 near the air outlet to detect noise of the indoor unit 20.
As shown in fig. 1, in one or more embodiments, the air conditioner 1 of the present invention further includes an economizer 16 disposed on the bypass branch 35. One end of the bypass branch 35 is connected to the liquid pipe 32 between the outdoor electronic expansion valve 15 and the liquid pipe shut-off valve 18, and the other end of the bypass branch 35 is connected to the intake port of the gas-liquid separator 17. The economizer 16 includes a subcooling valve 161 and a heat exchanger 162. The supercooling valve 161 can regulate the flow of the refrigerant flowing into the bypass branch 35 and plays a role of expansion and depressurization. In one or more embodiments, the heat exchanger 162 is a plate heat exchanger having four interfaces. Based on the orientation shown in fig. 1, the first port (located at the upper right of the heat exchanger 162) is connected to the supercooling valve 161, the second port (located at the upper left of the heat exchanger 162) is connected to the gas inlet of the gas-liquid separator 17, the third port (located at the lower left of the heat exchanger 162) is connected to the outdoor electronic expansion valve 15, and the fourth port (located at the lower right of the heat exchanger 162) is connected to the liquid pipe shut-off valve 18. The first interface is communicated with the second interface, and the third interface is communicated with the fourth interface. Through the above configuration, the liquid refrigerant condensed by the outdoor heat exchanger 13 can be split into two paths, the first path flows from the third port to the fourth port along the liquid pipe 32, and the second path flows from the first port to the second port along the bypass branch 35. The heat exchange efficiency can be improved by the reversely flowing refrigerant. The liquid refrigerant in the second path is expanded and throttled by the supercooling valve 161 to form a low-temperature low-pressure liquid refrigerant, and the low-temperature low-pressure liquid refrigerant enters the heat exchanger 162 through the first interface; in the heat exchanger 162, the low-temperature low-pressure refrigerant in the second path absorbs heat from the high-temperature high-pressure (or medium-pressure) liquid refrigerant in the first path to evaporate into gas, and then leaves the heat exchanger 162 from the second port and flows to the gas-liquid separator 17. The gaseous refrigerant can be sucked and compressed again by the compressor 11 after flowing to the gas-liquid separator 17, so that the suction amount of the compressor 11 is increased, and the compression efficiency is improved. In contrast, the temperature of the liquid refrigerant in the first path is reduced in the heat exchanger 162 due to heat transfer to the liquid refrigerant in the second path, thereby increasing the supercooling degree thereof. Alternatively, the heat exchanger 162 may also be a double pipe heat exchanger or other suitable heat exchanger.
The air conditioner noise control method for increasing the deep sleep time according to the present invention will be described in detail based on the above-described air conditioner 1. It should be noted that the air conditioning noise control method for increasing the deep sleep time of the present invention can be applied to other suitable refrigeration apparatuses.
Fig. 2 is a flowchart of an air conditioner noise control method for increasing a deep sleep time according to the present invention. When any indoor unit of the air conditioner 1 receives an instruction to enter the deep sleep mode, an air conditioner noise control method for increasing the deep sleep time starts. As shown in fig. 2, after the air conditioner noise control method for increasing the deep sleep time is started, step S1 is performed to detect a real-time indoor background noise value. In one or more embodiments, a noise detector is used to detect real-time indoor background noise values. The noise detector may be placed directly at or near the head of a bed so that the noise value near the human body can be accurately detected. The noise detector feeds back the detected indoor background noise value to the indoor unit, for example to a controller or processor on the indoor unit. After receiving the measured indoor background noise value, the controller or processor of the indoor unit determines the difference between the indoor background noise value and the deep sleep noise threshold (step S2). After determining the difference, if the absolute value of the difference is greater than or equal to the first difference threshold, the air conditioner noise control method executes step S3, i.e., adjusts the motor rotation speed of the indoor unit when the absolute value of the difference is greater than or equal to the first difference threshold. If the absolute value of the difference is smaller than the first difference threshold, the air conditioning noise control method executes step S4, namely, when the absolute value of the difference is smaller than the first difference threshold, the air deflector angle of the indoor unit is adjusted. In one or more embodiments, the deep sleep noise threshold is 32dB and the first difference threshold is set to 2dB. When the absolute value of the difference between the real-time indoor background noise value and the deep sleep noise threshold is greater than or equal to 2dB, it is indicated that the difference is relatively large. Since motor operation is the main source of indoor set noise, the difference between indoor background noise value and deep sleep noise threshold can be reduced more rapidly by adjusting motor rotation speed. When the absolute value of the difference between the real-time indoor background noise value and the deep sleep noise threshold is smaller than 2dB, the difference is smaller, so that the indoor background noise value can be finely adjusted by adjusting the angle of the air deflector to increase or decrease the noise generated by wind in the air duct, and the indoor background noise value can finally reach the deep sleep noise threshold. Alternatively, the first difference threshold may be set to a difference threshold greater than 2dB or less than 2dB, depending on the actual need.
Fig. 3 is a flowchart of a first portion of a first embodiment of an air conditioning noise control method for increasing deep sleep time of the present invention. Fig. 4 is a flowchart of a second part of the first embodiment of the air conditioning noise control method for increasing the deep sleep time of the present invention. As shown in fig. 3 and 4, after the air conditioner noise control method for increasing the deep sleep time is started, step S1 is performed to detect a real-time indoor background noise value. Then, the air conditioning noise control method proceeds to step S2, where a difference between the indoor background noise value and the deep sleep noise threshold value is determined. Simultaneously or after determining the difference value, the air conditioner noise control method further performs step S2a of comparing the indoor background noise value with the deep sleep noise threshold value.
As shown in fig. 3, when the indoor background noise value is greater than the deep sleep noise threshold, the air conditioner noise control method proceeds to step S21a, and it is determined whether the difference obtained in step S2 is equal to or greater than the first difference threshold. The first difference threshold is, for example, 2dB. When the difference is smaller than the first difference threshold, step S41a is performed to increase the air deflector angle of the indoor unit by a predetermined angle variable. In one or more embodiments, the predetermined angular variable is 15 °. Alternatively, the predetermined angular variation may be greater than 15 ° or less than 15 °. When the angle of the air deflector increases, the flow resistance of the wind in the air duct of the indoor unit is correspondingly reduced, and the noise caused by the flow resistance is reduced. After increasing the air guide plate angle of the indoor unit, a predetermined period of time elapses, step S42a is performed to re-measure the indoor background noise value. The re-detection of the noise value of the indoor background at intervals of a predetermined time period is to accurately detect the stable noise value after the angle of the air deflector is changed. In one or more embodiments, the predetermined period of time is 30 seconds. Accordingly, the noise detector may measure the indoor background noise value every 30 seconds. Alternatively, the predetermined period of time may be longer than 30 seconds or shorter than 30 seconds, depending on the actual need. In step S43a, the re-measured indoor background noise value is compared with the deep sleep noise threshold. If the re-measured indoor background noise value is equal to the deep sleep noise threshold, the air conditioner noise control method ends. If the re-measured indoor background noise value is not equal to the deep sleep noise threshold, step S41a is re-executed to increase the air deflector angle of the indoor unit by a predetermined angle variable until the indoor background noise value is equal to the deep sleep noise threshold.
Herein, the indoor background noise value being equal to the deep sleep noise threshold includes within a range of deviations allowed by the indoor background noise value reaching the deep sleep noise threshold. For example, when the deep sleep noise threshold is 32dB and the deviation range thereof is 32db±0.5dB, in the case where the indoor background noise value is 32.5dB or less and 31.5dB or more, the indoor background noise value can be considered to be equal to or reach the deep sleep noise threshold.
As shown in fig. 3, when it is determined that the difference obtained in step S2 is equal to or greater than the first difference threshold, the air conditioning noise control method proceeds to step S31a to reduce the motor rotation speed of the indoor unit by the first rotation speed variation. In one or more embodiments, the first rotational speed variable is 10 revolutions per minute. Alternatively, the first rotational speed variable may be greater than 10 revolutions per minute or less than 10 revolutions per minute. As the motor speed decreases, the resulting noise also decreases rapidly. After the motor rotation speed of the indoor unit is reduced by the first rotation speed variation, the air conditioner noise control method proceeds to step S32a, i.e., after a predetermined period of time has elapsed, the indoor background noise value is re-measured. The re-detection of the indoor background noise value at intervals of a predetermined period is to accurately detect a stable noise value after the motor rotation speed is changed. In one or more embodiments, the predetermined period of time is 30 seconds. Accordingly, the noise detector may automatically measure the indoor background noise value every 30 seconds. Alternatively, the predetermined period of time may be longer than 30 seconds or shorter than 30 seconds, depending on the actual need. Then, in step S33a, a difference between the re-measured indoor background noise value and the deep sleep noise threshold value is determined. After the difference is obtained, the air conditioner noise control method returns to step S2a, and the re-measured indoor background noise value is compared with the depth sleep noise threshold again. Then, according to the comparison result, a corresponding step is performed until the indoor background noise value is equal to the deep sleep noise threshold.
As shown in fig. 4, when the indoor background noise value is smaller than the deep sleep noise threshold, the air conditioner noise control method proceeds to step S22a, and it is determined whether the absolute value of the difference obtained in step S2 is equal to or greater than the first difference threshold. The first difference threshold is, for example, 2dB. When the absolute value of the difference is smaller than the first difference threshold, step S41b is performed to reduce the air deflector angle of the indoor unit by a predetermined angle variable. In one or more embodiments, the predetermined angular variable is 15 °. Alternatively, the predetermined angular variation may be greater than 15 ° or less than 15 °. When the air deflector angle is reduced, the flow resistance of the wind in the air duct of the indoor unit is correspondingly increased, and the noise caused by the flow resistance is increased. After the air guide plate angle of the indoor unit is reduced, a predetermined period of time passes, step S42b is performed to re-measure the indoor background noise value. In one or more embodiments, the predetermined period of time is 30 seconds. Accordingly, the noise detector may measure the indoor background noise value every 30 seconds. Alternatively, the predetermined period of time may be longer than 30 seconds or shorter than 30 seconds, depending on the actual need. In step S43b, the re-measured indoor background noise value is compared with the deep sleep noise threshold. If the re-measured indoor background noise value is equal to the deep sleep noise threshold, the air conditioner noise control method ends. If the re-measured indoor background noise value is not equal to the deep sleep noise threshold, step S41b is re-executed to increase the air deflector angle of the indoor unit by a predetermined angle variable until the indoor background noise value is equal to the deep sleep noise threshold.
As shown in fig. 4, when it is determined that the absolute value of the difference obtained in step S2 is equal to or greater than the first difference threshold, the air conditioning noise control method proceeds to step S31b to increase the motor rotation speed of the indoor unit by the first rotation speed variation. In one or more embodiments, the first rotational speed variable is 10 revolutions per minute. Alternatively, the first rotational speed variable may be greater than 10 revolutions per minute or less than 10 revolutions per minute. As the motor speed increases, the resulting noise increases rapidly. After increasing the motor rotation speed of the indoor unit at the first rotation speed variation, the air conditioner noise control method proceeds to step S32b, i.e., after a predetermined period of time has elapsed, the indoor background noise value is re-measured. In one or more embodiments, the predetermined period of time is 30 seconds. Accordingly, the noise detector may measure the indoor background noise value every 30 seconds. Alternatively, the predetermined period of time may be longer than 30 seconds or shorter than 30 seconds, depending on the actual need. Then, in step S33b, a difference between the re-measured indoor background noise value and the deep sleep noise threshold value is determined. After the difference is obtained, the air conditioner noise control method returns to step S2a, and the re-measured indoor background noise value is compared with the depth sleep noise threshold again. Then, according to the comparison result, a corresponding step is performed until the indoor background noise value is equal to the deep sleep noise threshold.
Fig. 5 is a flowchart of a first part of a second embodiment of an air conditioning noise control method for increasing a deep sleep time of the present invention. Fig. 6 is a flowchart of a second portion of a second embodiment of an air conditioning noise control method for increasing a deep sleep time of the present invention. As shown in fig. 5 and 6, after the air conditioner noise control method for increasing the deep sleep time is started, step S1 is performed to detect a real-time indoor background noise value. Then, the air conditioning noise control method proceeds to step S2, where a difference between the indoor background noise value and the deep sleep noise threshold value is determined. Simultaneously or after determining the difference value, the air conditioner noise control method further performs step S2a of comparing the indoor background noise value with the deep sleep noise threshold value.
As shown in fig. 5, when the indoor background noise value is greater than the deep sleep noise threshold, the air conditioner noise control method proceeds to step S21a, and it is determined whether the difference obtained in step S2 is equal to or greater than the first difference threshold. The first difference threshold is, for example, 2dB. When the difference is smaller than the first difference threshold, step S41a is performed to increase the air deflector angle of the indoor unit by a predetermined angle variable. In one or more embodiments, the predetermined angular variable is 15 °. Alternatively, the predetermined angular variation may be greater than 15 ° or less than 15 °. When the angle of the air deflector increases, the flow resistance of the wind in the air duct of the indoor unit is correspondingly reduced, and the noise caused by the flow resistance is reduced. After increasing the air guide plate angle of the indoor unit, a predetermined period of time elapses, step S42a is performed to re-measure the indoor background noise value. In one or more embodiments, the predetermined period of time is 30 seconds. Accordingly, the noise detector may measure the indoor background noise value every 30 seconds. Alternatively, the predetermined period of time may be longer than 30 seconds or shorter than 30 seconds, depending on the actual need. In step S43a, the re-measured indoor background noise value is compared with the deep sleep noise threshold. If the re-measured indoor background noise value is equal to the deep sleep noise threshold, the air conditioner noise control method ends. If the re-measured indoor background noise value is not equal to the deep sleep noise threshold, step S41a is re-executed to increase the air deflector angle of the indoor unit by a predetermined angle variable until the indoor background noise value is equal to the deep sleep noise threshold.
As shown in fig. 5, in step S21a, when it is determined that the difference obtained in step S2 is equal to or greater than the first difference threshold, the air conditioning noise control method proceeds to step S21b, and it is determined whether the difference obtained in step S2 is equal to or greater than the second difference threshold. The second difference threshold is greater than the first difference threshold. In one or more implementations, the second difference threshold is 10dB. Alternatively, the second difference threshold may be greater than 10dB or less than 10dB.
As shown in fig. 5, when the difference is smaller than the second difference threshold, the air conditioning noise control method proceeds to step S31a to reduce the motor rotation speed of the indoor unit at the first rotation speed variation. In one or more embodiments, the first rotational speed variable is 10 revolutions per minute. Alternatively, the first rotational speed variable may be greater than 10 revolutions per minute or less than 10 revolutions per minute. As the motor speed decreases, the resulting noise also decreases rapidly. After the motor rotation speed of the indoor unit is reduced by the first rotation speed variation, the air conditioner noise control method proceeds to step S32a, i.e., after a predetermined period of time has elapsed, the indoor background noise value is re-measured. In one or more embodiments, the predetermined period of time is 30 seconds. Accordingly, the noise detector may measure the indoor background noise value every 30 seconds. Alternatively, the predetermined period of time may be longer than 30 seconds or shorter than 30 seconds, depending on the actual need. Then, in step S33a, a difference between the re-measured indoor background noise value and the deep sleep noise threshold value is determined. After the difference is obtained, the air conditioner noise control method returns to step S2a, and the re-measured indoor background noise value is compared with the depth sleep noise threshold again. Then, according to the comparison result, a corresponding step is performed until the indoor background noise value is equal to the deep sleep noise threshold.
As shown in fig. 5, when the difference is equal to or greater than the second difference threshold, the air conditioning noise control method proceeds to step S34a, and the motor rotation speed of the indoor unit is reduced by the second rotation speed variable. The second rotational speed variable is greater than the first rotational speed variable. In one or more embodiments, the second rotational speed variable is 50 revolutions per minute. Alternatively, the second rotational speed variable is greater than 50 revolutions per minute or less than 50 revolutions per minute. In the case where the difference is equal to or greater than the second difference threshold, it is explained that the difference between the indoor background noise value and the deep sleep noise threshold is large, so the indoor background noise value is reduced more rapidly by reducing the motor rotation speed by a larger second rotation speed variable. Then, the air conditioner noise control method proceeds to step S35a, and after a predetermined period of time has elapsed, the indoor background noise value is re-measured. In one or more embodiments, the predetermined period of time is 30 seconds. Accordingly, the noise detector may measure the indoor background noise value every 30 seconds. Alternatively, the predetermined period of time may be longer than 30 seconds or shorter than 30 seconds, depending on the actual need. Then, in step S36a, a difference between the re-measured indoor background noise value and the deep sleep noise threshold value is determined. After the difference is obtained, the air conditioner noise control method returns to step S2a, and the re-measured indoor background noise value is compared with the depth sleep noise threshold again. Then, according to the comparison result, a corresponding step is performed until the indoor background noise value is equal to the deep sleep noise threshold.
As shown in fig. 6, when the indoor background noise value is smaller than the deep sleep noise threshold, the air conditioning noise control method proceeds to step S22a, and it is determined whether the absolute value of the difference obtained in step S2 is equal to or greater than the first difference threshold. The first difference threshold is, for example, 2dB. When the difference is smaller than the first difference threshold, step S41b is performed to reduce the air deflector angle of the indoor unit by a predetermined angle variable. In one or more embodiments, the predetermined angular variable is 15 °. Alternatively, the predetermined angular variation may be greater than 15 ° or less than 15 °. When the air deflector angle is reduced, the flow resistance of the wind in the air duct of the indoor unit is correspondingly increased, and the noise caused by the flow resistance is increased. After the air guide plate angle of the indoor unit is reduced, a predetermined period of time passes, step S42b is performed to re-measure the indoor background noise value. In one or more embodiments, the predetermined period of time is 30 seconds. Accordingly, the noise detector may measure the indoor background noise value every 30 seconds. Alternatively, the predetermined period of time may be longer than 30 seconds or shorter than 30 seconds, depending on the actual need. In step S43b, the re-measured indoor background noise value is compared with the deep sleep noise threshold. If the re-measured indoor background noise value is equal to the deep sleep noise threshold, the air conditioner noise control method ends. If the re-measured indoor background noise value is not equal to the deep sleep noise threshold, step S41b is re-executed to reduce the air deflector angle of the indoor unit by a predetermined angle variable until the indoor background noise value is equal to the deep sleep noise threshold.
As shown in fig. 6, in step S22a, when it is determined that the absolute value of the difference obtained in step S2 is equal to or greater than the first difference threshold, the air conditioning noise control method proceeds to step S22b, where it is determined whether the absolute value of the difference obtained in step S2 is equal to or greater than the second difference threshold. The second difference threshold is greater than the first difference threshold. In one or more implementations, the second difference threshold is 10dB. Alternatively, the second difference threshold may be greater than 10dB or less than 10dB.
As shown in fig. 6, when the absolute value of the difference is smaller than the second difference threshold, the air conditioning noise control method proceeds to step S31b to increase the motor rotation speed of the indoor unit by the first rotation speed variation. In one or more embodiments, the first rotational speed variable is 10 revolutions per minute. Alternatively, the first rotational speed variable may be greater than 10 revolutions per minute or less than 10 revolutions per minute. As the motor speed increases, the resulting noise increases rapidly. After increasing the motor rotation speed of the indoor unit at the first rotation speed variation, the air conditioner noise control method proceeds to step S32b, i.e., after a predetermined period of time has elapsed, the indoor background noise value is re-measured. In one or more embodiments, the predetermined period of time is 30 seconds. Accordingly, the noise detector may measure the indoor background noise value every 30 seconds. Alternatively, the predetermined period of time may be longer than 30 seconds or shorter than 30 seconds, depending on the actual need. Then, in step S33b, a difference between the re-measured indoor background noise value and the deep sleep noise threshold value is determined. After the difference is obtained, the air conditioner noise control method returns to step S2a, and the re-measured indoor background noise value is compared with the depth sleep noise threshold again. Then, according to the comparison result, a corresponding step is performed until the indoor background noise value is equal to the deep sleep noise threshold.
As shown in fig. 6, when the absolute value of the difference is equal to or greater than the second difference threshold, the air conditioning noise control method proceeds to step S34b to increase the motor rotation speed of the indoor unit by the second rotation speed variable. The second rotational speed variable is greater than the first rotational speed variable. In one or more embodiments, the second rotational speed variable is 50 revolutions per minute. Alternatively, the second rotational speed variable is greater than 50 revolutions per minute or less than 50 revolutions per minute. In the case where the absolute value of the difference is equal to or greater than the second difference threshold, it is explained that the difference between the indoor background noise value and the deep sleep noise threshold is large, so the indoor background noise value is increased more rapidly by increasing the motor rotation speed by a larger second rotation speed variable. Then, the air conditioner noise control method proceeds to step S35b, and after a predetermined period of time has elapsed, the indoor background noise value is re-measured. In one or more embodiments, the predetermined period of time is 30 seconds. Accordingly, the noise detector may measure the indoor background noise value every 30 seconds. Alternatively, the predetermined period of time may be longer than 30 seconds or shorter than 30 seconds, depending on the actual need. Then, in step S36b, a difference between the re-measured indoor background noise value and the deep sleep noise threshold value is determined. After the difference is obtained, the air conditioner noise control method returns to step S2a, and the re-measured indoor background noise value is compared with the depth sleep noise threshold again. Then, according to the comparison result, a corresponding step is performed until the indoor background noise value is equal to the deep sleep noise threshold.
In summary, the air conditioner noise control method for increasing the deep sleep time of the present invention changes the running state of the indoor unit by detecting the indoor background noise condition, taking the deep sleep noise threshold value as a target value, and changing the motor rotation speed of the indoor unit and the wind swinging angle of the panel, so that the indoor background noise value is maintained at the deep sleep noise threshold value, for example, 32dB. The arrangement ensures that the air conditioner has good effect and can improve the deep sleep time of people when running modes such as refrigeration, heating, air supply, dehumidification and the like.
Thus far, the technical solution of the present invention has been described in connection with the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of protection of the present invention is not limited to these specific embodiments. Equivalent modifications and substitutions for related technical features may be made by those skilled in the art without departing from the principles of the present invention, and such modifications and substitutions will fall within the scope of the present invention.

Claims (9)

1. An air conditioning noise control method for increasing a deep sleep time, wherein the air conditioner includes an indoor unit having a deep sleep mode, and in the deep sleep mode, the air conditioning noise control method includes:
Detecting a real-time indoor background noise value;
determining a difference between the indoor background noise value and a deep sleep noise threshold;
when the absolute value of the difference value is larger than or equal to a first difference value threshold value, the motor rotating speed of the indoor unit is adjusted;
when the absolute value of the difference value is smaller than the first difference value threshold value, adjusting the angle of the air deflector of the indoor unit,
under the condition that the indoor background noise value is larger than the deep sleep noise threshold value, increasing the air deflector angle of the indoor unit when the difference value is smaller than the first difference value threshold value; or alternatively
And under the condition that the indoor background noise value is smaller than the deep sleep noise threshold value, when the absolute value of the difference value is smaller than the first difference value threshold value, reducing the air deflector angle of the indoor unit.
2. The air conditioning noise control method for increasing deep sleep time of claim 1, further comprising:
when the absolute value of the difference is larger than or equal to a first difference threshold value and smaller than a second difference threshold value, the rotating speed of the motor is adjusted by a first rotating speed variable;
when the absolute value of the difference value is larger than or equal to the second difference value threshold value, the motor rotating speed is adjusted by a second rotating speed variable,
Wherein the second rotational speed variable is greater than the first rotational speed variable.
3. The method for controlling noise of an air conditioner for increasing a deep sleep time according to claim 2, wherein, on condition that the indoor background noise value is greater than the deep sleep noise threshold value,
when the difference value is larger than or equal to a first difference value threshold value and smaller than a second difference value threshold value, reducing the rotating speed of the motor by a first rotating speed variable;
and when the difference value is greater than or equal to the second difference value threshold value, reducing the motor rotation speed by a second rotation speed variable.
4. The method for controlling noise of an air conditioner for increasing a deep sleep time according to claim 2, wherein, on condition that the indoor background noise value is less than the deep sleep noise threshold value,
when the absolute value of the difference is larger than or equal to a first difference threshold value and smaller than a second difference threshold value, increasing the rotating speed of the motor by a first rotating speed variable;
and when the absolute value of the difference value is larger than or equal to the second difference value threshold value, increasing the motor rotation speed by a second rotation speed variable.
5. The air conditioning noise control method for increasing deep sleep time of claim 1, further comprising:
Providing a noise detector which can communicate with the air conditioner, and automatically detecting the indoor background noise value in the deep sleep mode.
6. The method for controlling noise of an air conditioner for increasing a deep sleep time according to claim 1, wherein the step of detecting real-time indoor background noise is re-performed after a predetermined period of time has elapsed after the motor rotation speed of the indoor unit is adjusted or after the air guide plate angle of the indoor unit is adjusted.
7. The method for controlling air conditioning noise for increasing deep sleep time according to claim 1, wherein the range of the deep sleep noise threshold is 32dB ± 1dB.
8. The method for air conditioning noise control for increasing deep sleep time as claimed in claim 7, wherein the deep sleep noise threshold is 32dB.
9. An air conditioner comprising at least one indoor unit and being equipped with a wire controller or a remote controller on which a deep sleep key is provided, a controller being provided on each of the indoor units, and the controller being configured to execute the air conditioner noise control method for increasing a deep sleep time according to any one of claims 1 to 8 when an instruction issued by clicking the deep sleep key is received.
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Applicant after: QINGDAO HAIER AIR CONDITIONER GENERAL Corp.,Ltd.

Applicant after: QINGDAO HAIER CENTRAL AIR CONDITIONER Co.,Ltd.

Address before: 266555 No. 305, south of Tuanjie road and west of zonger Road, Huangdao District, Qingdao City, Shandong Province

Applicant before: QINGDAO HAIER CENTRAL AIR CONDITIONER Co.,Ltd.

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