CN113883684A - 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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Publication number
CN113883684A
CN113883684A CN202111152370.3A CN202111152370A CN113883684A CN 113883684 A CN113883684 A CN 113883684A CN 202111152370 A CN202111152370 A CN 202111152370A CN 113883684 A CN113883684 A CN 113883684A
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noise
deep sleep
difference
value
air conditioner
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CN113883684B (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 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)
  • Fuzzy Systems (AREA)
  • Mathematical Physics (AREA)
  • Human Computer Interaction (AREA)
  • Fluid Mechanics (AREA)
  • Air Conditioning Control Device (AREA)

Abstract

The invention relates to an air conditioner noise control method for increasing deep sleep time and an air conditioner. 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; determining a difference between the indoor background noise value and a deep sleep noise threshold value; when the absolute value of the difference is larger than or equal to a first difference threshold, adjusting the rotating speed of a motor of the indoor unit; and when the absolute value of the difference is smaller than the first difference threshold, adjusting the angle of an air deflector of the indoor unit. The air conditioner noise control method can adjust the indoor background noise to the deep sleep noise threshold value, so that the deep sleep time can be prolonged by a user under the deep sleep noise threshold value.

Description

Air conditioner noise control method for increasing deep sleep time and air conditioner
Technical Field
The invention relates to the field of air conditioners, in particular to an air conditioner noise control method for increasing deep sleep time and an air conditioner.
Background
In modern life, air conditioners have become an indispensable necessity for life. Air conditioners on the market at present 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, the air conditioner is always in a cooling operation state at night in summer, and the air conditioner is always in a heating operation state at night in winter, so as to provide comfortable indoor temperature for people, thereby promoting sleep of people. Air conditioners generally include an outdoor unit and an indoor unit connected to the outdoor unit, including but not limited to air conditioners and all-in-one units and split units. In the operating state, the fans of both the outdoor unit and the indoor unit are kept in operation, thereby generating noise. The outdoor unit is generally disposed outdoors, so that noise generated by the outdoor unit does not affect users indoors, whereas noise generated by the indoor unit disposed directly in an indoor environment has a relatively large effect on users. With the acceleration of life rhythm, people have higher and higher requirements on sleep quality. Therefore, 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 a sleep mode of an air conditioner is disclosed. Specifically, when the air conditioner is in a 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 time interval, the current rotating speed of the fan is increased until the target rotating speed is reached under the condition that the current noise value is smaller than the current noise threshold, and the current rotating speed of the fan is reduced until the target rotating speed is reached 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 requirements of the user can be met. However, this method of adjusting the rotation speed of the fan alone sometimes fails to achieve the purpose of accurately controlling the noise of the indoor unit. More importantly, this noise control method does not take into account the effects 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 problems.
Disclosure of Invention
In order to solve the above problems in the prior art, that is, to solve the technical problems in the prior art that the noise of an indoor unit cannot be accurately controlled and the deep sleep time of a person cannot be increased by noise control, the present invention provides an air conditioner noise control method for increasing the deep sleep time, wherein the air conditioner comprises an indoor unit having a deep sleep mode, and in the deep sleep mode, the air conditioner noise control method comprises:
detecting a real-time indoor background noise value;
determining a difference between the indoor background noise value and a deep sleep noise threshold value;
when the absolute value of the difference is larger than or equal to a first difference threshold, adjusting the rotating speed of a motor of the indoor unit;
and when the absolute value of the difference is smaller than the first difference threshold, adjusting the angle of an air deflector of the indoor unit.
Researchers have found that indoor background noise affects a person's deep sleep time, and have found that it is most beneficial to sleep at an indoor background noise value that is consistent with the noise value produced by a sleeping person's normal breathing, i.e., the deep sleep time is longest. This indoor background noise value, which coincides with the noise value generated by the breathing of a sleeping person, is referred to herein as the "deep sleep noise threshold". The indoor background noise value is higher or lower than the deep sleep noise threshold value, which is not beneficial 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 the real-time indoor background noise value and determines the difference value between the real-time indoor background noise value and the deep sleep noise threshold value. 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 rotating speed of the motor of the indoor unit, and the difference between the indoor background noise value and the deep sleep noise threshold is reduced more quickly. 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 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 value, so that the user can increase the deep sleep time under the deep sleep noise threshold value.
In a preferred embodiment of the above method for controlling noise of an air conditioner to increase deep sleep time, the method further includes:
when the absolute value of the difference is greater than or equal to a first difference threshold and smaller than a second difference threshold, adjusting the rotating speed of the motor by a first rotating speed variable;
when the absolute value of the difference is larger than or equal to the second difference threshold value, adjusting the rotating speed of the motor 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 adjusting the rotating speed of the motor by adopting different rotating speed variables according to different differences. Specifically, when the absolute value of the difference is greater than or equal to a first difference threshold and smaller than a second difference threshold, the rotating speed of the motor is adjusted by a first rotating speed variable; and when the absolute value of the difference is larger than or equal to the second difference threshold, adjusting the rotating speed of the motor by using a second rotating speed variable larger than the first rotating speed variable so as to adjust the indoor background noise value more quickly.
In the above-mentioned preferable technical solution of the air conditioner 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 is greater than or equal to a first difference threshold and smaller than a second difference threshold, reducing the rotating speed of the motor by a first rotating speed variation;
and when the difference is larger than or equal to the second difference threshold value, reducing the rotating speed of the motor by a second rotating speed variable. And if the indoor background noise value is greater than the deep sleep noise threshold, the indoor background noise value needs to be reduced, so that the rotating speed of the motor is reduced through the first rotating speed variable and the second rotating speed variable respectively, and the purpose of reducing the indoor background noise value towards the deep sleep noise threshold is achieved.
In the above-mentioned preferable technical solution of the air conditioner noise control method for increasing deep sleep time, under the condition that the indoor background noise value is less than the deep sleep noise threshold value,
when the absolute value of the difference is greater than or equal to a first difference threshold and smaller than a second difference threshold, increasing the rotating speed of the motor by a first rotating speed variation;
and when the absolute value of the difference is larger than or equal to the second difference threshold, increasing the rotating speed of the motor by a second rotating speed variable. And if the indoor background noise value is smaller than the deep sleep noise threshold, the indoor background noise value needs to be increased, so that the rotating speed of the motor is increased through the first rotating speed variable and the second rotating speed variable respectively, and the purpose of increasing the indoor background noise value towards the deep sleep noise threshold is achieved.
In the preferable technical scheme of the air conditioner noise control method for increasing the deep sleep time, when the difference is smaller than the first difference threshold value under the condition that the indoor background noise value is larger than the deep sleep noise threshold value, the angle of the air deflector of the indoor unit is increased; or when the absolute value of the difference is smaller than the first difference threshold value under the condition that the indoor background noise value is smaller than the deep sleep noise threshold value, reducing the angle of the air deflector of the indoor unit. If the indoor background noise value is greater than the deep sleep noise threshold, 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 increasing the angle of the air deflector of the indoor unit. Conversely, if the indoor background noise value is less than the deep sleep noise threshold, the indoor background noise value needs to be increased. And under the condition that the difference is smaller than the first difference threshold, the angle of the air deflector of the indoor unit is reduced to increase the indoor background noise value towards the deep sleep noise threshold by a small amplitude.
In a preferred embodiment of the above method for controlling noise of an air conditioner to increase deep sleep time, the method further includes:
and providing a noise detector which can be communicated with the air conditioner, wherein the noise detector automatically detects 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 an 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 method for controlling noise of an air conditioner to increase deep sleep time, the step of detecting real-time background noise is executed again after a predetermined period of time elapses after the rotational speed of the motor of the indoor unit is adjusted or after the angle of the air deflector of the indoor unit is adjusted. By repeatedly executing the steps and the subsequent steps, the indoor background noise value can finally reach the deep sleep noise threshold value.
In the above-mentioned preferred technical solution of the air conditioner noise control method for increasing the deep sleep time, the range of the deep sleep noise threshold is 32dB ± 1dB, preferably 32 dB. Typically, 32dB is consistent with the noise generated by a person breathing during sleep.
In order to solve the above-mentioned problems in the prior art, that is, to solve the technical problems in the prior art that the noise of an indoor unit cannot be accurately controlled and the deep sleep time of a person cannot be increased by noise control, the present invention provides an air conditioner including at least one indoor unit and a line controller or a remote controller, a deep sleep key is provided on the line controller or the remote controller, a controller is provided on each of the indoor units, and the controller is configured to execute the air conditioner noise control method for increasing the deep sleep time according to any one of claims 1 to 9 when receiving an instruction issued by clicking the deep sleep key. 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, and further improve the satisfaction degree of the user. Furthermore, the indoor unit can enter a deep sleep mode by clicking a deep sleep key, and 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 of an embodiment of the air conditioner of the present invention;
FIG. 2 is a flow chart of the air conditioner noise control method for increasing deep sleep time of the present invention;
FIG. 3 is a flow chart of a first portion of a first embodiment of an air conditioner noise control method for increasing deep sleep time in accordance with the present invention;
FIG. 4 is a flow chart of a second portion of the first embodiment of the air conditioner noise control method for increasing deep sleep time of the present invention;
FIG. 5 is a flow chart of a first portion of a second embodiment of an air conditioner noise control method for increasing deep sleep time in accordance with the present invention;
fig. 6 is a flowchart of a second part of the second embodiment of the air conditioner noise control method for increasing deep sleep time according to the present invention.
List of reference numerals:
1. an air conditioner; 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. an over-cooling 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 pipeline; 31. an exhaust pipe; 32. a liquid pipe; 33. a gas pipe; 34. an air intake duct; 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 only for explaining the technical principle 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, wherein an air conditioner comprises the 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 is larger than or equal to a first difference threshold, adjusting the motor speed of the indoor unit (step S3);
and when the absolute value of the difference is smaller than the first difference threshold, adjusting the angle of the air deflector of the indoor unit (step S4).
Fig. 1 is a system 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 indoor units 20 connected in parallel, wherein the indoor units 20 connected in parallel 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 further equipped with a line controller or a remote controller (not shown in the figure), and a deep sleep key is provided on the line controller or the remote controller, so as to allow a user to send an instruction to enter a deep sleep mode to a corresponding indoor unit by clicking the deep sleep key when necessary. Further, a noise detector that is independent of the air conditioner 1 but can communicate with the air conditioner may be configured. When the indoor unit receives the deep sleep mode instruction, the noise detector can automatically detect the indoor background noise value. During the execution of the deep sleep mode, the air conditioner 1 may simultaneously operate one or more of the blowing, cooling, heating, and dehumidifying modes.
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 units 20 are interconnected by refrigerant pipes 30 to form a refrigeration circuit for allowing a refrigerant to flow therethrough. Specifically, the compressor 11 has a discharge port 111 and a suction port 112. The discharge port 111 of the compressor 11 is connected to the D port of the four-way valve 12 through a discharge pipe 31. The C port of the four-way valve 12 is connected to the input end of the outdoor heat exchanger 13. The output end of the outdoor heat exchanger 13 is connected to the outdoor electronic expansion valve 15, the indoor electronic expansion valve 24 and the indoor heat exchanger 21 in this order through the liquid pipe 32. The indoor heat exchanger 21 is connected to an E port of the four-way valve 12 through a gas pipe 33. The S port of the four-way valve 12 is connected to the gas inlet of the gas-liquid separator 17. The outlet of the gas-liquid separator 17 is connected to the suction port 112 of the compressor 11 through the suction pipe 34 so as to be interconnected to form a refrigeration cycle, and the air conditioner 1 can be switched between a cooling 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. The configuration of each compressor 11 may be the same or different, depending on the actual requirements.
With continued reference to fig. 1, in one or more embodiments, the outdoor heat exchanger 13 is a finned coil heat exchanger. Alternatively, the outdoor heat exchanger 13 may be a plate heat exchanger or other suitable heat exchanger. An outdoor fan 14 is further disposed at a position close to the outdoor heat exchanger 13 to improve the heat exchange efficiency of the outdoor heat exchanger 13.
With continued reference to fig. 1, in one or more embodiments, a liquid tube shutoff valve 18 is provided on the liquid tube 32 between the outdoor electronic expansion valve 15 and the indoor electronic expansion valve 24, and a gas tube shutoff valve 19 is also provided on the gas tube 33 between the E-junction of the four-way valve 12 and the indoor heat exchanger 21. The liquid pipe shutoff valve 18 and the gas pipe shutoff valve 19 are configured to be normally open and closable in the case of attachment, detachment, maintenance, or the like, so that the refrigerant in the refrigeration circuit is temporarily stored outside the room.
As shown in fig. 1, in one or more embodiments, the indoor heat exchanger 21 is a fin-and-coil heat exchanger. Alternatively, the indoor heat exchanger 21 may be a plate heat exchanger or other suitable heat exchanger. An indoor fan 22 is further disposed at a position close to the indoor heat exchanger 21 to improve the heat exchange efficiency of the indoor heat exchanger 21. In one or more embodiments, a temperature sensor 23 is provided adjacent to 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 for detecting noise of the indoor unit 20 is further disposed on a casing (not shown) of the indoor unit 20 near the outlet.
In one or more embodiments, as shown in fig. 1, the air conditioner 1 of the present invention further includes an economizer 16 disposed in 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 shutoff valve 18, and the other end of the bypass branch 35 is connected to the gas inlet of the gas-liquid separator 17. The economizer 16 includes an subcooling valve 161 and a heat exchanger 162. The supercooling valve 161 can adjust the flow rate of the refrigerant flowing into the bypass line 35, and perform an expansion and pressure reduction function. In one or more embodiments, the heat exchanger 162 is a plate heat exchanger having four ports. 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 subcooling valve 161, the second port (located at the upper left of the heat exchanger 162) is connected to the air 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 shutoff valve 18. The first interface is communicated with the second interface, and the third interface is communicated with the fourth interface. With the above configuration, the liquid refrigerant condensed by the outdoor heat exchanger 13 may be divided into two paths, the first path flows from the third port to the fourth port rightward along the liquid pipe 32, and the second path flows from the first port to the second port leftward along the bypass branch 35. The refrigerant flowing reversely can improve the heat exchange efficiency. The liquid refrigerant in the second path is expanded and throttled by the cold valve 161 to form a low-temperature and low-pressure liquid refrigerant, and the low-temperature and low-pressure liquid refrigerant enters the heat exchanger 162 through the first interface; in the heat exchanger 162, the low-temperature and low-pressure refrigerant in the second path absorbs heat from the high-temperature and high-pressure (or medium-pressure) liquid refrigerant in the first path, evaporates 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 by transferring heat to the liquid refrigerant in the second path, thereby increasing the supercooling degree. Alternatively, the heat exchanger 162 may 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 air conditioner 1. It should be noted that the air conditioner noise control method for increasing deep sleep time of the present invention can also be used for other suitable refrigeration equipment.
Fig. 2 is a flowchart of an air conditioner noise control method for increasing 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, the 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 the 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 can be placed directly on or near the bed head to accurately detect noise levels near the body. 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 a 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 conditioning noise control method performs step S3, i.e., adjusts the motor 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 performs step S4, that is, when the absolute value of the difference is smaller than the first difference threshold, the angle of the air deflector 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 2 dB. When the absolute value of the difference between the real-time indoor background noise value and the deep sleep noise threshold value is more than or equal to 2dB, the difference is relatively large. Because the motor operation is the main source of the noise of the indoor unit, the difference between the indoor background noise value and the deep sleep noise threshold value can be reduced more quickly by adjusting the rotating speed of the motor. 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 reduce the noise generated by the air 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 be greater than 2dB or less than 2dB, depending on actual needs.
Fig. 3 is a flowchart of a first part of a first embodiment of an air conditioner noise control method for increasing deep sleep time according to the present invention. Fig. 4 is a flowchart of a second part of the first embodiment of the air conditioner noise control method for increasing deep sleep time according to 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 the real-time indoor background noise value. Then, the air conditioner noise control method proceeds to step S2, and determines a difference between the indoor background noise value and the deep sleep noise threshold value. At the same time or after the difference is determined, the air conditioner noise control method further performs step S2a to compare the indoor background noise value with the magnitude of the deep sleep noise threshold.
As shown in fig. 3, when the indoor background noise value is greater than the deep sleep noise threshold value, the air-conditioning noise control method proceeds to step S21a to determine whether the difference value obtained in step S2 is greater than or equal to the first difference threshold value. The first difference threshold is for example 2 dB. When the difference is smaller than the first difference threshold, step S41a is executed to increase the angle of the air deflector of the indoor unit by a predetermined angle variable. In one or more embodiments, the predetermined angular variation is 15 °. Alternatively, the predetermined angle variable may be greater than 15 ° or less than 15 °. When the angle of the air deflector is increased, the flow resistance of the air in the air duct of the indoor unit is correspondingly reduced, and the noise caused by the air is also reduced. After the angle of the air deflector of the indoor unit is increased, a predetermined time period elapses, and step S42a is performed to re-measure the indoor background noise value. The purpose of re-detecting the indoor background noise value at intervals of a preset time period is to accurately measure 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 level every 30 seconds. Alternatively, the predetermined period of time may be longer than 30 seconds or shorter than 30 seconds, as may be practical. In step S43a, the newly measured indoor background noise value is compared with the deep sleep noise threshold value. 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 newly measured indoor background noise value is not equal to the deep sleep noise threshold, step S41a is executed again to increase the angle of the air deflector 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 the indoor background noise value being within a deviation allowed by 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, it can be considered that the indoor background noise value is equal to or reaches 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 decrease the motor speed of the indoor unit by the first speed variation. In one or more embodiments, the first amount of speed change is 10 revolutions per minute. Alternatively, the first rotational speed variation 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 speed of the indoor unit is reduced by the first speed variation, the air conditioning noise control method proceeds to step S32a, i.e., the indoor background noise value is re-measured after a predetermined period of time has elapsed. The purpose of re-detecting the indoor background noise value at intervals of a preset time period is to accurately measure the stable noise value after the rotating speed of the motor is changed. In one or more embodiments, the predetermined period of time is 30 seconds. Accordingly, the noise detector can 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, as may be practical. Then, in step S33a, a difference between the re-measured indoor background noise value and the deep sleep noise threshold is determined. After obtaining the difference, the air conditioner noise control method returns to step S2a, and compares the newly measured indoor background noise value with the deep sleep noise threshold value again. Then, according to the comparison result, executing the corresponding steps until the indoor background noise value is equal to the deep sleep noise threshold value.
As shown in fig. 4, when the indoor background noise value is less than the deep sleep noise threshold value, the air-conditioning noise control method proceeds to step S22a, and determines whether the absolute value of the difference value obtained in step S2 is greater than or equal to a first difference threshold value. The first difference threshold is for example 2 dB. When the absolute value of the difference is smaller than the first difference threshold, step S41b is executed to decrease the angle of the air deflector of the indoor unit by a predetermined angle variable. In one or more embodiments, the predetermined angular variation is 15 °. Alternatively, the predetermined angle variable may be greater than 15 ° or less than 15 °. When the angle of the air deflector is reduced, the circulation resistance of the air in the air duct of the indoor unit is correspondingly increased, and the noise caused by the air is increased. After the air deflector angle of the indoor unit is decreased, a predetermined time period elapses, and the 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 level every 30 seconds. Alternatively, the predetermined period of time may be longer than 30 seconds or shorter than 30 seconds, as may be practical. In step S43b, the newly measured indoor background noise value is compared with the deep sleep noise threshold value. 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 newly measured indoor background noise value is not equal to the deep sleep noise threshold, step S41b is executed again to increase the angle of the air deflector 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 amount of speed change is 10 revolutions per minute. Alternatively, the first rotational speed variation 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 speed of the indoor unit by the first speed variation, the air conditioning 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 level every 30 seconds. Alternatively, the predetermined period of time may be longer than 30 seconds or shorter than 30 seconds, as may be practical. Then, in step S33b, a difference between the re-measured indoor background noise value and the deep sleep noise threshold is determined. After obtaining the difference, the air conditioner noise control method returns to step S2a, and compares the newly measured indoor background noise value with the deep sleep noise threshold value again. Then, according to the comparison result, executing the corresponding steps until the indoor background noise value is equal to the deep sleep noise threshold value.
Fig. 5 is a flowchart of a first portion of a second embodiment of an air conditioner noise control method for increasing deep sleep time in accordance with the present invention. Fig. 6 is a flowchart of a second part of the second embodiment of the air conditioner noise control method for increasing deep sleep time according to 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 the real-time indoor background noise value. Then, the air conditioner noise control method proceeds to step S2, and determines a difference between the indoor background noise value and the deep sleep noise threshold value. At the same time or after the difference is determined, the air conditioner noise control method further performs step S2a to compare the indoor background noise value with the magnitude of the deep sleep noise threshold.
As shown in fig. 5, when the indoor background noise value is greater than the deep sleep noise threshold value, the air-conditioning noise control method proceeds to step S21a to determine whether the difference value obtained in step S2 is greater than or equal to the first difference threshold value. The first difference threshold is for example 2 dB. When the difference is smaller than the first difference threshold, step S41a is executed to increase the angle of the air deflector of the indoor unit by a predetermined angle variable. In one or more embodiments, the predetermined angular variation is 15 °. Alternatively, the predetermined angle variable may be greater than 15 ° or less than 15 °. When the angle of the air deflector is increased, the flow resistance of the air in the air duct of the indoor unit is correspondingly reduced, and the noise caused by the air is also reduced. After the angle of the air deflector of the indoor unit is increased, a predetermined time period elapses, and 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 level every 30 seconds. Alternatively, the predetermined period of time may be longer than 30 seconds or shorter than 30 seconds, as may be practical. In step S43a, the newly measured indoor background noise value is compared with the deep sleep noise threshold value. 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 newly measured indoor background noise value is not equal to the deep sleep noise threshold, step S41a is executed again to increase the angle of the air deflector 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 10 dB. Alternatively, the second difference threshold may be greater than 10dB or less than 10 dB.
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 decrease the motor speed of the indoor unit by the first speed variation. In one or more embodiments, the first amount of speed change is 10 revolutions per minute. Alternatively, the first rotational speed variation 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 speed of the indoor unit is reduced by the first speed variation, the air conditioning noise control method proceeds to step S32a, i.e., the indoor background noise value is re-measured after a predetermined period of time has elapsed. In one or more embodiments, the predetermined period of time is 30 seconds. Accordingly, the noise detector may measure the indoor background noise level every 30 seconds. Alternatively, the predetermined period of time may be longer than 30 seconds or shorter than 30 seconds, as may be practical. Then, in step S33a, a difference between the re-measured indoor background noise value and the deep sleep noise threshold is determined. After obtaining the difference, the air conditioner noise control method returns to step S2a, and compares the newly measured indoor background noise value with the deep sleep noise threshold value again. Then, according to the comparison result, executing the corresponding steps until the indoor background noise value is equal to the deep sleep noise threshold value.
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 to decrease the motor speed of the indoor unit by the second speed variation. The second rotational speed variation is greater than the first rotational speed variation. 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 means that the difference between the indoor background noise value and the deep sleep noise threshold is large, and therefore the indoor background noise value is more rapidly reduced by reducing the motor rotation speed by the second rotation speed variation which is larger. Then, the air conditioning 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 level every 30 seconds. Alternatively, the predetermined period of time may be longer than 30 seconds or shorter than 30 seconds, as may be practical. Then, in step S36a, a difference between the re-measured indoor background noise value and the deep sleep noise threshold is determined. After obtaining the difference, the air conditioner noise control method returns to step S2a, and compares the newly measured indoor background noise value with the deep sleep noise threshold value again. Then, according to the comparison result, executing the corresponding steps until the indoor background noise value is equal to the deep sleep noise threshold value.
As shown in fig. 6, when the indoor background noise value is less than the deep sleep noise threshold value, the air-conditioning noise control method proceeds to step S22a, and determines whether the absolute value of the difference value obtained in step S2 is greater than or equal to a first difference threshold value. The first difference threshold is for example 2 dB. When the difference is smaller than the first difference threshold, step S41b is executed to decrease the angle of the air deflector of the indoor unit by a predetermined angle variable. In one or more embodiments, the predetermined angular variation is 15 °. Alternatively, the predetermined angle variable may be greater than 15 ° or less than 15 °. When the angle of the air deflector is reduced, the circulation resistance of the air in the air duct of the indoor unit is correspondingly increased, and the noise caused by the air is increased. After the air deflector angle of the indoor unit is decreased, a predetermined time period elapses, and the 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 level every 30 seconds. Alternatively, the predetermined period of time may be longer than 30 seconds or shorter than 30 seconds, as may be practical. In step S43b, the newly measured indoor background noise value is compared with the deep sleep noise threshold value. 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 newly measured indoor background noise value is not equal to the deep sleep noise threshold, step S41b is executed again to decrease the angle of the air deflector 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, and 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 10 dB. Alternatively, the second difference threshold may be greater than 10dB or less than 10 dB.
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 speed of the indoor unit by the first speed variation. In one or more embodiments, the first amount of speed change is 10 revolutions per minute. Alternatively, the first rotational speed variation 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 speed of the indoor unit by the first speed variation, the air conditioning 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 level every 30 seconds. Alternatively, the predetermined period of time may be longer than 30 seconds or shorter than 30 seconds, as may be practical. Then, in step S33b, a difference between the re-measured indoor background noise value and the deep sleep noise threshold is determined. After obtaining the difference, the air conditioner noise control method returns to step S2a, and compares the newly measured indoor background noise value with the deep sleep noise threshold value again. Then, according to the comparison result, executing the corresponding steps until the indoor background noise value is equal to the deep sleep noise threshold value.
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 speed of the indoor unit by the second speed variable. The second rotational speed variation is greater than the first rotational speed variation. 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 means that the difference between the indoor background noise value and the deep sleep noise threshold is large, and therefore the indoor background noise value is increased more rapidly by increasing the motor rotation speed by the second rotation speed variable which is larger. Then, the air conditioning 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 level every 30 seconds. Alternatively, the predetermined period of time may be longer than 30 seconds or shorter than 30 seconds, as may be practical. Then, in step S36b, a difference between the re-measured indoor background noise value and the deep sleep noise threshold is determined. After obtaining the difference, the air conditioner noise control method returns to step S2a, and compares the newly measured indoor background noise value with the deep sleep noise threshold value again. Then, according to the comparison result, executing the corresponding steps until the indoor background noise value is equal to the deep sleep noise threshold value.
In summary, the air conditioner noise control method for increasing the deep sleep time according to the present invention changes the operation state of the indoor unit by detecting the indoor background noise condition, taking the deep sleep noise threshold as the target value, and changing the motor rotation speed of the indoor unit and the swing angle of the panel, so as to maintain the indoor background noise value at the deep sleep noise threshold, for example, 32 dB. The arrangement ensures that the air conditioner has good effect and can improve the deep sleep time of people when operating in modes such as refrigeration, heating, air supply, dehumidification and the like.
So far, the technical solutions of the present invention have 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 the present invention is obviously not limited to these specific embodiments. Equivalent changes or substitutions of related technical features can be made by those skilled in the art without departing from the principle of the invention, and the technical scheme after the changes or substitutions can fall into the protection scope of the invention.

Claims (10)

1. An air conditioner 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 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 value;
when the absolute value of the difference is larger than or equal to a first difference threshold, adjusting the rotating speed of a motor of the indoor unit;
and when the absolute value of the difference is smaller than the first difference threshold, adjusting the angle of an air deflector of the indoor unit.
2. The method of controlling noise of an air conditioner for increasing deep sleep time according to claim 1, further comprising:
when the absolute value of the difference is greater than or equal to a first difference threshold and smaller than a second difference threshold, adjusting the rotating speed of the motor by a first rotating speed variable;
when the absolute value of the difference is larger than or equal to the second difference threshold value, adjusting the rotating speed of the motor by a second rotating speed variable,
wherein the second rotational speed variable is greater than the first rotational speed variable.
3. The noise control method for an air conditioner for increasing a deep sleep time according to claim 2, wherein, under the condition that the indoor background noise value is greater than the deep sleep noise threshold value,
when the difference is greater than or equal to a first difference threshold and smaller than a second difference threshold, reducing the rotating speed of the motor by a first rotating speed variation;
and when the difference is larger than or equal to the second difference threshold value, reducing the rotating speed of the motor by a second rotating speed variable.
4. The noise control method for an air conditioner for increasing a deep sleep time according to claim 2, wherein, on the condition that the indoor background noise value is less than the deep sleep noise threshold value,
when the absolute value of the difference is greater than or equal to a first difference threshold and smaller than a second difference threshold, increasing the rotating speed of the motor by a first rotating speed variation;
and when the absolute value of the difference is larger than or equal to the second difference threshold, increasing the rotating speed of the motor by a second rotating speed variable.
5. The noise control method of an air conditioner for increasing deep sleep time according to claim 1,
under the condition that the indoor background noise value is larger than the deep sleep noise threshold, when the difference value is smaller than the first difference value threshold, increasing the angle of an air deflector of the indoor unit; or
And under the condition that the indoor background noise value is smaller than the deep sleep noise threshold, reducing the angle of an air deflector of the indoor unit when the absolute value of the difference is smaller than the first difference threshold.
6. The method of controlling noise of an air conditioner for increasing deep sleep time according to claim 1, further comprising:
and providing a noise detector which can be communicated with the air conditioner, wherein the noise detector automatically detects the indoor background noise value in the deep sleep mode.
7. The method as claimed in claim 1, wherein the step of detecting the real-time background noise is performed again after a predetermined period of time has elapsed after the rotational speed of the motor of the indoor unit is adjusted or after the angle of the air guide plate of the indoor unit is adjusted.
8. The method as claimed in claim 1, wherein the deep sleep noise threshold is in a range of 32dB ± 1 dB.
9. The method of claim 8, wherein the deep sleep noise threshold is 32 dB.
10. An air conditioner, characterized in that the air conditioner comprises at least one indoor unit and is provided with a wire controller or a remote controller, a deep sleep key is arranged on the wire controller or the remote controller, a controller is arranged on each indoor unit, and the controller is configured to execute the air conditioner noise control method for increasing the deep sleep time according to any one of claims 1 to 9 when receiving an instruction issued by clicking the deep sleep key.
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