CN114963437A - Control method of fresh air fan in air conditioner indoor unit and air conditioner indoor unit - Google Patents
Control method of fresh air fan in air conditioner indoor unit and air conditioner indoor unit Download PDFInfo
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- CN114963437A CN114963437A CN202210451341.5A CN202210451341A CN114963437A CN 114963437 A CN114963437 A CN 114963437A CN 202210451341 A CN202210451341 A CN 202210451341A CN 114963437 A CN114963437 A CN 114963437A
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- 238000000034 method Methods 0.000 title claims abstract description 36
- 238000007664 blowing Methods 0.000 claims description 8
- 230000006698 induction Effects 0.000 claims description 3
- 230000005236 sound signal Effects 0.000 claims description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 9
- 229910052760 oxygen Inorganic materials 0.000 description 9
- 239000001301 oxygen Substances 0.000 description 9
- 230000006870 function Effects 0.000 description 3
- 230000003247 decreasing effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000006641 stabilisation Effects 0.000 description 2
- 238000011105 stabilization Methods 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
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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
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
- F24F11/74—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
- F24F11/77—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity by controlling the speed of ventilators
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/72—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
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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
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2120/00—Control inputs relating to users or occupants
- F24F2120/10—Occupancy
- F24F2120/12—Position of occupants
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Signal Processing (AREA)
- Fluid Mechanics (AREA)
- Human Computer Interaction (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention provides a control method of a fresh air fan in an air conditioner indoor unit and the air conditioner indoor unit. The control method of the fresh air fan in the indoor unit of the air conditioner comprises the following steps: judging whether the environment where the fresh air fan is located is occupied or not; if so, calculating the number of people in the environment; determining the wind speed gear of the fresh air fan according to the number of people; the fresh air fan is controlled to operate according to the wind speed gears, so that the wind speed gears of the fresh air fan can be changed according to the number of people, healthy air can be provided for the environment where the user is located, the comfort level of the user is improved, and the intelligent level of the air conditioner is greatly improved.
Description
Technical Field
The invention relates to the technical field of air conditioners, in particular to a control method of a fresh air fan in an air conditioner indoor unit and the air conditioner indoor unit.
Background
At present, a fresh air fan is installed in a plurality of air conditioner indoor units, and the air quality of indoor air is adjusted by controlling the fresh air fan. When the number of persons in a room is large, the oxygen concentration in the room and the quality of air may be decreased rapidly, and when the number of persons in a room is small, the oxygen concentration in the room and the quality of air may be decreased relatively slowly. However, the fresh air blower in the existing air-conditioning indoor unit cannot change the air supply amount according to the number of people in the room, cannot adjust the indoor air to the optimal state, and causes troubles to users.
Disclosure of Invention
In view of the above problems, the present invention has been made to provide a control method of a fresh air fan in an air conditioner indoor unit and an air conditioner indoor unit, which overcome the above problems or at least partially solve the above problems.
One purpose of the invention is to adjust the wind speed gear of the fresh air fan according to the number of people indoors, thereby improving the indoor air quality.
Another object of the present invention is to avoid that the outdoor air temperature affects the indoor air temperature.
Particularly, according to one aspect of the present invention, the present invention provides a method for controlling a fresh air fan in an indoor unit of an air conditioner, comprising:
judging whether the environment where the fresh air fan is located is occupied or not;
if so, calculating the number of people in the environment;
determining the wind speed gear of the fresh air fan according to the number of people;
and controlling the fresh air fan to operate according to the wind speed gear.
Optionally, after the step of controlling the fresh air fan to operate according to the wind speed gear, the method further includes:
acquiring the air temperature of the outdoor environment and the set temperature of the indoor unit of the air conditioner;
judging whether the difference value between the air temperature and the set temperature exceeds a preset range or not;
if so, controlling the air in the air duct of the fresh air fan to enter the air duct of the evaporator of the indoor unit of the air conditioner, mixing the air with the air in the air duct of the evaporator, and blowing out the mixed air through the indoor unit of the air conditioner.
Optionally, after the step of controlling the air in the air duct of the fresh air blower to enter the air duct of the evaporator of the indoor unit of the air conditioner, the method further includes:
and increasing the rotating speed of the fan of the indoor unit of the air conditioner.
Optionally, after the step of controlling the air in the air duct of the fresh air blower to enter the air duct of the evaporator of the indoor unit of the air conditioner, the method further includes:
increasing the frequency of the compressor of the indoor unit of the air conditioner.
Optionally, the step of blowing out the mixed air through the indoor unit of the air conditioner includes:
acquiring the human body position of a person in the environment where the fresh air fan is located;
acquiring a preset range area around the position of the human body;
and the indoor unit of the air conditioner blows the mixed air to the area outside the position of the human body in the preset range area.
Optionally, if the difference between the air temperature and the set temperature is within the preset range, controlling the air in the air duct of the fresh air fan to be blown out by the fresh air fan.
Optionally, the step of controlling the air in the fresh air fan duct to be blown out by the fresh air fan includes:
acquiring the human body position of a person in the environment where the fresh air fan is located;
and controlling the fresh air fan to blow air out towards the human body position.
Optionally, the step of judging whether the environment where the fresh air fan is located is someone includes:
judging whether the environment where the fresh air fan is located is occupied or not through infrared induction; or
Judging whether the environment where the fresh air fan is located is occupied or not through image identification; or
And judging whether the environment where the fresh air fan is located is occupied or not through the sound signal.
Optionally, the step of determining the wind speed gear of the fresh air fan according to the number of people comprises:
if the number of people belongs to a first preset number range, determining that the wind speed gear is a first gear;
and if the number of people exceeds a first preset number of people range, determining that the wind speed gear is a second gear, wherein the second gear is higher than the first gear.
According to another aspect of the present invention, the present invention also provides an indoor unit of an air conditioner, comprising:
a fresh air fan;
the control program is used for realizing the control method of the fresh air fan in the indoor unit of the air conditioner according to any one of the control methods when being executed by the processor.
According to the control method of the fresh air fan in the indoor unit of the air conditioner, whether the environment where the fresh air fan is located is occupied is judged, if yes, the number of people in the environment is calculated, the wind speed gear of the fresh air fan is determined according to the number of people, and the fresh air fan is controlled to operate according to the wind speed gear, so that the wind speed gear of the fresh air fan is changed according to the number of people, healthy air is provided for the environment where users are located, the comfort level of the users is improved, and the intelligence level of the air conditioner is greatly improved.
Further, acquire the air temperature of outdoor environment and air conditioner's settlement temperature, judge whether the difference of air temperature and settlement temperature surpasss preset range, if surpass preset range, it is great to explain outdoor and indoor temperature difference, if the great outdoor air of difference in temperature directly gets into indoorly through the new trend fan, can make indoor temperature produce great change, greatly reduced user's comfort level, in order to avoid this problem, control the air in the new trend fan wind channel and get into in air conditioner's the evaporimeter wind channel, mix with the air in the evaporimeter wind channel, the air after will mixing blows out through the air conditioner.
Furtherly, if with the great air of indoor difference in temperature through the new trend fan air duct in get into air conditioner's the evaporimeter wind channel, in order can be faster with indoor temperature stabilization at the settlement temperature, increase air conditioner's the rotational speed of fan, can increase the air output of the air of settlement temperature to can be faster with indoor temperature stabilization at the settlement temperature, improved user's experience.
Further, if with the great air of indoor difference in temperature through the new trend fan wind channel in get into air conditioner's evaporimeter wind channel, in order can be faster with indoor temperature stable at the settlement temperature, increase the frequency of air conditioner's compressor, increased the operating power of air conditioner to can be faster with indoor temperature stable at the settlement temperature, improved user's experience.
The above and other objects, advantages and features of the present invention will become more apparent to those skilled in the art from the following detailed description of specific embodiments thereof taken in conjunction with the accompanying drawings.
Drawings
Some specific embodiments of the invention will be described in detail hereinafter, by way of illustration and not limitation, with reference to the accompanying drawings. The same reference numbers in the drawings identify the same or similar elements or components. Those skilled in the art will appreciate that the drawings are not necessarily to scale. In the drawings:
fig. 1 is a flow chart of a control method of a fresh air fan in an indoor unit of an air conditioner according to an embodiment of the invention;
fig. 2 is a flow chart of a control method of a fresh air fan in an indoor unit of an air conditioner according to another embodiment of the invention;
fig. 3 is a schematic structural diagram of an indoor unit of an air conditioner according to an embodiment of the present invention.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
Fig. 1 is a flowchart of a method for controlling a fresh air fan in an indoor unit of an air conditioner according to an embodiment of the present invention. Referring to fig. 1, the method for controlling the fresh air fan in the indoor unit of the air conditioner may include steps S102 to S108.
Step S102: and judging whether the environment where the fresh air fan is located is occupied or not. In this step, the environment in which the fresh air fan is located may generally be referred to as an indoor environment. When the step is executed, the indoor unit of the air conditioner can be in a starting state, and the fresh air fan can be in a closing state.
If yes, go to step S104: the number of people in the environment is calculated. In this step, the fresh air fan can be set to be in an open state from a closed state.
Step S106: and determining the wind speed gear of the fresh air fan according to the number of people.
Step S108: and controlling the fresh air fan to operate according to the wind speed gear.
In this embodiment, judge whether the environment at new trend fan place is someone, if, the number of people in the computational environment, confirm the wind speed gear of new trend fan according to the number of people, control new trend fan is according to the operation of wind speed gear to realized changing the wind speed gear of new trend fan according to how much of number, and then realized providing healthy air for the environment at user place, improved user's comfort level, also improved the intelligent level of air conditioner greatly.
In an embodiment of the present invention, after the step of controlling the fresh air fan to operate according to the wind speed gear, the method may further include:
acquiring the air temperature of the outdoor environment and the set temperature of an indoor unit of an air conditioner;
judging whether the difference value between the air temperature and the set temperature exceeds a preset range or not;
if so, controlling the air in the air duct of the fresh air fan to enter the air duct of the evaporator of the indoor unit of the air conditioner, mixing the air with the air in the air duct of the evaporator, and blowing out the mixed air through the indoor unit of the air conditioner.
In this embodiment, the preset range may be set according to the needs of the user, specifically, for example, the preset range is-5 to 5 degrees celsius. The air temperature of outdoor environment and the temperature setting of air conditioner indoor unit are obtained, whether the difference value of the air temperature and the temperature setting exceeds the preset range is judged, if the difference value exceeds the preset range, the difference value between the outdoor temperature and the indoor temperature is large, if the outdoor air with the large temperature difference directly enters the indoor space through the fresh air fan, the indoor temperature can be changed greatly, the comfort level of a user is greatly reduced, in order to avoid the problem, the air in the air channel of the fresh air fan is controlled to enter the air channel of the evaporator of the air conditioner indoor unit and is mixed with the air in the air channel of the evaporator, and the mixed air is blown out through the air conditioner indoor unit. But new trend fan wind channel and evaporimeter wind channel have the function of intercommunication, specifically speaking, for example, the intercommunication has between new trend fan wind channel and the evaporimeter wind channel, still install the pendulum leaf in the new trend fan wind channel, open the intercommunication through the position of adjustment pendulum leaf and make new trend fan wind channel and evaporimeter wind channel intercommunication, and make the pendulum leaf shelter from the air outlet in new trend fan wind channel, of course, can also set up the aviation baffle in the intercommunication, through the position of adjustment aviation baffle, open the intercommunication and make new trend fan wind channel and evaporimeter wind channel intercommunication, and shelter from the air outlet in new trend fan wind channel.
In an embodiment of the present invention, after the step of controlling the air in the air duct of the fresh air blower to enter the air duct of the evaporator of the indoor unit of the air conditioner, the method may further include:
the rotating speed of the fan of the indoor unit of the air conditioner is increased.
In this embodiment, if with the great air of indoor difference in temperature through the new trend fan wind channel in get into air conditioner's evaporimeter wind channel, in order can be faster with indoor temperature stable at the settlement temperature, increase the rotational speed of air conditioner's fan, can increase the air output of the air of settlement temperature to can be faster with indoor temperature stable at the settlement temperature, improved user's experience.
In an embodiment of the present invention, after the step of controlling the air in the duct of the fresh air fan to enter the evaporator duct of the indoor unit of the air conditioner, the method may further include:
increasing the frequency of the compressor of the indoor unit of the air conditioner.
In this embodiment, if with the great air of indoor difference in temperature through the new trend fan wind channel in get into air conditioner's evaporimeter wind channel, in order can be faster with indoor temperature stable at the settlement temperature, increase air conditioner's compressor's frequency, increased air conditioner's operating power to can be faster with indoor temperature stable at the settlement temperature, improved user's experience.
In an embodiment of the present invention, the step of blowing out the mixed air through the indoor unit of the air conditioner may include:
acquiring the human body position of a person in the environment where the fresh air fan is located;
acquiring a preset range area around the position of a human body;
the indoor unit of the air conditioner blows the mixed air to the area outside the human body position in the preset range area.
In this embodiment, after the air having a large indoor temperature difference is mixed with the air in the air duct of the evaporator, the temperature may be different from the set temperature, and if the air is directly blown to the human body, discomfort may be brought to the human body, but the oxygen content of the mixed air is high, and in order to increase the oxygen content around the user and improve the comfort of the user, the mixed air is blown to the area outside the human body position in the preset range area. The preset range may generally refer to a range within 1.5 meters, for example, within 1 or 0.5 meters, around the position of the human body. In addition, the blowing of the mixed air by the indoor unit of the air conditioner to the area outside the human body position in the preset range area may specifically be blowing of the mixed air to the area outside the human body position in the preset range area in a circulating manner, and specifically, for example, the mixed air may be blown to the area outside the human body position in the preset range area in a circulating manner in the order of up, down, left, and right, so that the oxygen content of each position is increased.
In one embodiment of the present invention, if the difference between the air temperature and the set temperature is within the preset range, the air in the air duct of the fresh air fan is controlled to be blown out by the fresh air fan.
In this embodiment, if the difference between the air temperature and the set temperature belongs to the preset range, it is described that the outdoor air temperature is closer to the indoor temperature, at this time, the air in the air duct of the fresh air fan is controlled to be blown out by the fresh air fan, so that only the function of the fresh air fan of the air conditioner can be started, and other functions of the air conditioner do not need to be started, thereby reducing the use loss of the air conditioner.
In an embodiment of the present invention, the step of controlling the air in the air duct of the fresh air blower to be blown out by the fresh air blower may include:
acquiring the human body position of a person in the environment where the fresh air fan is located;
and controlling the fresh air fan to blow air out towards the position of a human body.
In this embodiment, if the difference between the air temperature and the set temperature is within the preset range, it is described that the outdoor air temperature is closer to the indoor temperature, and the oxygen content of the air in the air duct of the fresh air fan is higher, so as to increase the oxygen content of the user, the human body position of the user in the environment where the fresh air fan is located is obtained, the fresh air fan is controlled to blow out the air towards the human body position, and the oxygen content of the user can be easily increased.
In an embodiment of the present invention, the step of determining whether a person is in an environment where the fresh air fan is located may include:
judging whether the environment where the fresh air fan is located is occupied or not through infrared induction; or
Judging whether the environment where the fresh air fan is located is occupied or not through image recognition; or
Whether the environment where the fresh air fan is located is judged by the sound signal.
In this embodiment, can judge whether the environment at new trend fan place is someone through multiple mode, make the mode of judging whether the environment at new trend fan place is someone more nimble.
In an embodiment of the present invention, the step of determining the wind speed gear of the fresh air fan according to the number of people may include:
if the number of people belongs to a first preset number range, determining that the wind speed gear is a first gear;
and if the number of people exceeds a first preset number of people range, determining that the wind speed gear is a second gear, wherein the second gear is higher than the first gear.
In this embodiment, the first predetermined number of people range is directly proportional to the size of the room, i.e. the larger the area of the room is, the larger the first predetermined number of people range is, and generally, the first predetermined number of people range may be 1 to 3 people. The first gear can be understood as a low wind gear and the second gear as a high wind gear. If the number of people belongs to a first preset number range, the wind speed gear is determined to be a first gear, if the number of people exceeds the first preset number range, the wind speed gear is determined to be a second gear, namely the more the number of people in a room is, the larger the air supply quantity of the fresh air fan is, and no matter how many people in the room exist, the indoor oxygen content can be maintained in a normal state, so that the comfort level of users is improved.
Referring to fig. 2, fig. 2 is a flowchart illustrating a method for controlling a fresh air blower in an indoor unit of an air conditioner according to another embodiment of the present invention, which may include the following steps S202 to S222.
Step S202: and judging whether the environment where the fresh air fan is located is occupied or not.
If yes, go to step S204, otherwise go to step S222.
Step S204: the number of people in the environment is calculated.
Step S206: and determining the wind speed gear of the fresh air fan according to the number of people, and controlling the fresh air fan to operate according to the wind speed gear.
Step S208: the air temperature of the outdoor environment and the set temperature of the indoor unit of the air conditioner are obtained.
Step S210: and judging whether the difference value between the air temperature and the set temperature exceeds a preset range. The preset range can refer to the above embodiments, and is not described herein.
If yes, go to step S212, otherwise go to step S220.
Step S212: and controlling the air in the air duct of the fresh air fan to enter the air duct of the evaporator of the indoor unit of the air conditioner and mix with the air in the air duct of the evaporator.
Step S214: increasing the rotating speed of a fan of an indoor unit of an air conditioner; and/or increasing the frequency of the compressor of the air conditioner indoor unit.
Step S216: the human body position of a person in the environment where the fresh air fan is located and a preset range area around the human body position are obtained. The preset range region may refer to the above embodiments, and is not described herein again.
Step S218: the indoor unit of the air conditioner blows the mixed air to an area outside the position of the human body in the preset range area.
Step S220: the human body position of people in the environment where the fresh air fan is located is obtained, and the fresh air fan is controlled to blow out air towards the human body position.
Step S222: the initial operation state of the indoor unit of the air conditioner is maintained.
Referring to fig. 3, fig. 3 is a schematic structural diagram of an indoor unit of an air conditioner according to an embodiment of the present invention. Based on the same concept, the invention also provides an air conditioner indoor unit 300. The air conditioner indoor unit 300 may include a fresh air blower 301, a memory 303, and a processor 302. The memory 303 stores a control program, and the control program is used for implementing the control method of the fresh air fan in the indoor unit of the air conditioner according to any one of the embodiments described above when executed by the processor 302.
The above embodiments can be combined arbitrarily, and according to any one of the above preferred embodiments or a combination of multiple preferred embodiments, the embodiments of the present invention can achieve the following beneficial effects:
according to the control method of the fresh air fan in the indoor unit of the air conditioner, whether the environment where the fresh air fan is located is occupied is judged, if yes, the number of people in the environment is calculated, the wind speed gear of the fresh air fan is determined according to the number of people, and the fresh air fan is controlled to operate according to the wind speed gear, so that the wind speed gear of the fresh air fan is changed according to the number of people, healthy air is provided for the environment where users are located, the comfort level of the users is improved, and the intelligence level of the air conditioner is greatly improved.
Thus, it should be appreciated by those skilled in the art that while a number of exemplary embodiments of the invention have been illustrated and described in detail herein, many other variations or modifications consistent with the principles of the invention may be directly determined or derived from the disclosure of the present invention without departing from the spirit and scope of the invention. Accordingly, the scope of the invention should be understood and interpreted to cover all such other variations or modifications.
Claims (10)
1. A control method of a fresh air fan in an indoor unit of an air conditioner comprises the following steps:
judging whether the environment where the fresh air fan is located is occupied or not;
if so, calculating the number of people in the environment;
determining the wind speed gear of the fresh air fan according to the number of people;
and controlling the fresh air fan to operate according to the wind speed gear.
2. The control method according to claim 1,
after the step of controlling the fresh air fan to operate according to the wind speed gear, the method further comprises the following steps of:
acquiring the air temperature of the outdoor environment and the set temperature of the indoor unit of the air conditioner;
judging whether the difference value of the air temperature and the set temperature exceeds a preset range or not;
if so, controlling the air in the air duct of the fresh air fan to enter the air duct of the evaporator of the indoor unit of the air conditioner, mixing the air with the air in the air duct of the evaporator, and blowing out the mixed air through the indoor unit of the air conditioner.
3. The control method according to claim 2, wherein,
after the step of controlling the air in the air duct of the fresh air fan to enter the air duct of the evaporator of the indoor unit of the air conditioner, the method further comprises the following steps:
and increasing the rotating speed of the fan of the indoor unit of the air conditioner.
4. The control method according to claim 2, wherein,
after the step of controlling the air in the air duct of the fresh air fan to enter the air duct of the evaporator of the indoor unit of the air conditioner, the method further comprises the following steps:
increasing the frequency of the compressor of the indoor unit of the air conditioner.
5. The control method according to claim 2, wherein,
the step of blowing out the mixed air by the indoor unit of the air conditioner comprises the following steps:
acquiring the human body position of a person in the environment where the fresh air fan is located;
acquiring a preset range area around the position of the human body;
and the indoor unit of the air conditioner blows the mixed air to the area outside the position of the human body in the preset range area.
6. The control method according to claim 2, wherein,
and if the difference value between the air temperature and the set temperature belongs to the preset range, controlling the air in the air duct of the fresh air fan to be blown out by the fresh air fan.
7. The control method according to claim 6, wherein,
the step of controlling the air in the air duct of the fresh air fan to be blown out by the fresh air fan comprises the following steps:
acquiring the human body position of a person in the environment where the fresh air fan is located;
and controlling the fresh air fan to blow air out towards the human body position.
8. The control method according to claim 1,
the step of judging whether the environment where the fresh air fan is located is someone comprises the following steps:
judging whether the environment where the fresh air fan is located is occupied or not through infrared induction; or
Judging whether the environment where the fresh air fan is located is occupied or not through image recognition; or
And judging whether the environment where the fresh air fan is located is occupied or not through the sound signal.
9. The control method according to claim 1,
the step of determining the wind speed gear of the fresh air fan according to the number of people comprises the following steps:
if the number of people belongs to a first preset number range, determining that the wind speed gear is a first gear;
and if the number of people exceeds a first preset number of people range, determining that the wind speed gear is a second gear, wherein the second gear is higher than the first gear.
10. An indoor unit of an air conditioner, comprising:
a fresh air fan;
a memory and a processor, wherein the memory stores a control program, and the control program is used for realizing the control method of the fresh air fan in the indoor unit of the air conditioner according to any one of claims 1 to 9 when being executed by the processor.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210451341.5A CN114963437A (en) | 2022-04-26 | 2022-04-26 | Control method of fresh air fan in air conditioner indoor unit and air conditioner indoor unit |
| PCT/CN2023/086227 WO2023207533A1 (en) | 2022-04-26 | 2023-04-04 | Control method for fresh air fan in air conditioner indoor unit, and air conditioner indoor unit |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210451341.5A CN114963437A (en) | 2022-04-26 | 2022-04-26 | Control method of fresh air fan in air conditioner indoor unit and air conditioner indoor unit |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023207533A1 (en) * | 2022-04-26 | 2023-11-02 | 青岛海尔空调器有限总公司 | Control method for fresh air fan in air conditioner indoor unit, and air conditioner indoor unit |
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- 2022-04-26 CN CN202210451341.5A patent/CN114963437A/en active Pending
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| CN107883551A (en) * | 2017-10-18 | 2018-04-06 | 广东美的暖通设备有限公司 | New blower fan fresh air quantity control method, apparatus and computer-readable recording medium |
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| WO2023207533A1 (en) * | 2022-04-26 | 2023-11-02 | 青岛海尔空调器有限总公司 | Control method for fresh air fan in air conditioner indoor unit, and air conditioner indoor unit |
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| Publication number | Publication date |
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| WO2023207533A1 (en) | 2023-11-02 |
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