CN110567137B - Air conditioner and air supply control method thereof - Google Patents
Air conditioner and air supply control method thereof Download PDFInfo
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- CN110567137B CN110567137B CN201910792424.9A CN201910792424A CN110567137B CN 110567137 B CN110567137 B CN 110567137B CN 201910792424 A CN201910792424 A CN 201910792424A CN 110567137 B CN110567137 B CN 110567137B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
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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
- F24F11/70—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
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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
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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
- F24F2140/00—Control inputs relating to system states
- F24F2140/20—Heat-exchange fluid temperature
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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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- Mathematical Physics (AREA)
- Air Conditioning Control Device (AREA)
Abstract
本发明属于空调器技术领域，具体涉及一种空调器及其送风控制方法。本发明旨在解决现有空调器的送风方式容易导致用户体验不佳的问题。为此，本发明的空调器包括室内机，室内机包括室内风机，本发明的送风控制方法包括：获取室内机的当前回风温度；根据室内机的当前回风温度，选择性地使室内风机以目标转速运行，以便室内机的送风温度始终能够贴合用户的换热需求，从而有效保证室内机吹出的风始终都能够令用户感到舒适，进而最大程度地提升用户体验。
The invention belongs to the technical field of air conditioners, and in particular relates to an air conditioner and an air supply control method thereof. The present invention aims to solve the problem that the air supply mode of the existing air conditioner easily leads to poor user experience. Therefore, the air conditioner of the present invention includes an indoor unit, the indoor unit includes an indoor fan, and the air supply control method of the present invention includes: acquiring the current return air temperature of the indoor unit; The fan runs at the target speed so that the air supply temperature of the indoor unit can always meet the user's heat exchange needs, thus effectively ensuring that the air blown by the indoor unit can always make the user feel comfortable, thereby maximizing the user experience.
Description
Technical Field
The invention belongs to the technical field of air conditioners, and particularly relates to an air conditioner and an air supply control method thereof.
Background
Along with the continuous improvement of living standard of people, people also put forward higher and higher requirements on living environment. In order to maintain a comfortable ambient temperature, an air conditioner has become an indispensable equipment in human life. In recent years, as air conditioning technology becomes more mature, users have made higher and higher demands on the overall performance of air conditioners. Taking the air supply mode of an air conditioner as an example, in order to effectively ensure that the air supply temperature of the air conditioner can meet the heat exchange requirement of a user, the existing air conditioners can start an indoor fan after running for a period of time, and the purpose is to start air supply when the temperature of an indoor coil pipe rises or falls to meet the heat exchange requirement of the user, so that the air sent by an indoor unit can be comfortable for the user; however, this air supply method does not ensure that the air supplied from the indoor unit is always comfortable for the user.
Specifically, in the conventional air conditioner, the indoor fan is controlled to operate when the temperature of the indoor coil reaches a certain temperature, and the rotation speed of the indoor fan is usually determined by the rotation speed set by a user. Taking the air conditioner to operate under a heating working condition as an example, the rotating speed of the indoor fan may affect the air supply temperature of the indoor unit, and particularly when the indoor space is large, the indoor temperature is difficult to rapidly rise in a short time; under the lower circumstances of indoor temperature, the temperature of indoor set air outlet also can be in lower state in a long period of time, and the user again very easily sets for the rotational speed of indoor fan to the maximum rotational speed because want indoor temperature to rise fast this moment, but, in fact under the lower circumstances of indoor temperature, even indoor coil pipe temperature has risen to certain temperature, if the rotational speed of indoor fan was too big this moment still probably blows out and makes the user feel cold wind to seriously influence user experience.
Accordingly, there is a need in the art for a new air conditioner and a method of controlling air supply thereof to solve the above problems.
Disclosure of Invention
In order to solve the above problems in the prior art, that is, to solve the problem that the existing air conditioner is apt to blow out cold air and cause discomfort to users under the condition of operating heating condition and low indoor temperature, the invention provides an air supply control method for the air conditioner, the air conditioner of the invention comprises an indoor unit, the indoor unit comprises an indoor fan, the air supply control method of the invention comprises: acquiring the current return air temperature of the indoor unit; and selectively enabling the indoor fan to operate at a target rotating speed according to the current return air temperature of the indoor unit.
In a preferred embodiment of the above air supply control method for an air conditioner, the step of "selectively operating the indoor fan at a target rotation speed according to a current return air temperature of the indoor unit" specifically includes: comparing the current return air temperature of the indoor unit with a preset temperature; and selectively enabling the indoor fan to operate at a target rotating speed according to the comparison result of the current return air temperature of the indoor unit and the preset temperature.
In a preferred embodiment of the above air supply control method for an air conditioner, the step of "selectively operating the indoor fan at a target rotation speed according to a comparison result between a current return air temperature of the indoor unit and the preset temperature" includes: and when the air conditioner operates in a heating working condition, if the current return air temperature of the indoor unit is lower than the preset temperature, the indoor fan is not operated at the target rotating speed.
In the preferable technical solution of the air supply control method for an air conditioner, under the condition that the air conditioner operates in a heating working condition and the current return air temperature of the indoor unit is less than the preset temperature, the air supply control method further includes: acquiring the current coil temperature of the indoor unit; and determining the rotating speed of the indoor fan according to the current coil temperature of the indoor unit, the current return air temperature of the indoor unit and the preset temperature.
In a preferred technical solution of the above air supply control method, the step of determining the rotation speed of the indoor fan according to the current coil temperature of the indoor unit, the current return air temperature of the indoor unit, and the preset temperature specifically includes determining the rotation speed of the indoor fan by the following equation:
wherein N is the rotating speed of the indoor fan, TpiIs the current coil temperature of the indoor unit, TaiIs the current return air temperature of the indoor unit, Tp0Is the target coil temperature, T0K1 is a first correction factor for the preset temperature, NsIs the target rotational speed, N0Is the lowest rotating speed of the indoor fan, k2 is a second correction coefficient Tpi-1And delta N is the coil temperature of the indoor unit at the last moment, and is the single adjustment quantity of the rotating speed of the indoor fan.
In the above-described preferred embodiment of the air supply control method for an air conditioner, the first correction coefficient and the second correction coefficient are determined by a configuration of the air conditioner.
In a preferred embodiment of the above air supply control method for an air conditioner, the air supply control method further includes: and when the rotating speed of the indoor fan determined by the equation is greater than or equal to the target rotating speed, enabling the rotating speed of the indoor fan to be equal to the target rotating speed.
In a preferred embodiment of the above air supply control method for an air conditioner, the step of "selectively operating the indoor fan at a target rotation speed according to a comparison result between a current return air temperature of the indoor unit and the preset temperature" further includes: and when the air conditioner operates in a heating working condition, if the current return air temperature of the indoor unit is not less than the preset temperature, the indoor fan is operated at the target rotating speed.
In a preferred embodiment of the above-described air supply control method for an air conditioner, the preset temperature is determined by a target indoor temperature.
The invention also provides an air conditioner, which comprises a controller, wherein the controller can execute the air supply control method in any one of the preferable technical scheme.
As can be understood by those skilled in the art, in the technical solution of the present invention, an air conditioner of the present invention includes an indoor unit, the indoor unit includes an indoor fan, and the air supply control method of the present invention includes: acquiring the current return air temperature of the indoor unit; and selectively operating the indoor fan at the target rotating speed according to the current return air temperature of the indoor unit. It can be understood that the current return air temperature of the indoor unit can well reflect the room temperature near the indoor unit, so that the air conditioner can selectively enable the indoor fan to operate at the target rotating speed according to the room temperature near the indoor unit; under many conditions, the rotating speed of the indoor fan can cause great influence on the air supply temperature of the indoor unit, so that the air supply control method selectively enables the indoor fan to operate at the target rotating speed according to the current return air temperature of the indoor unit, so that the air supply temperature of the indoor unit can always meet the heat exchange requirement of a user, the air blown out of the indoor unit can be effectively ensured to always make the user feel comfortable, and the user experience is further improved to the maximum extent.
Further, in a preferred technical scheme of the present invention, when the air conditioner operates in a heating working condition, if the current return air temperature of the indoor unit is less than the preset temperature, it indicates that the room temperature near the indoor unit is still low, and in this situation, the indoor fan is not operated at the target rotation speed, so as to avoid the problem that the indoor fan blows out cold air due to an excessively high rotation speed set by a user, thereby effectively ensuring user experience; and if the current return air temperature of the indoor unit is not less than the preset temperature, the indoor temperature near the indoor unit is higher, and under the condition, the indoor fan is operated at the target rotating speed, so that the air supply quantity of the indoor unit can reach the standard set by a user, and the use requirement of the user is met to the maximum extent.
Further, in a preferred technical solution of the present invention, the preset temperature is determined by a target indoor temperature, and different users may have different heat exchange requirements, so that the heat exchange requirements of each user can be more fully considered by determining the preset temperature according to the target indoor temperature, so that the air supply manner of the air conditioner can better meet the different requirements of each user.
Further, in a preferred technical scheme of the present invention, under a condition that the air conditioner operates in a heating condition and a current return air temperature of the indoor unit is less than the preset temperature, the air supply control method of the present invention can determine a rotation speed of the indoor fan according to the current coil temperature of the indoor unit, the current return air temperature of the indoor unit, and the preset temperature, that is, the air supply control method can control the rotation speed of the indoor fan by comprehensively considering three temperature conditions of the current coil temperature, a room temperature near the indoor unit, and the preset temperature, so as to effectively ensure that the indoor unit can always blow out hot air, thereby effectively ensuring good use experience of a user. Meanwhile, when the determined rotating speed of the indoor fan is greater than or equal to the target rotating speed, it is indicated that the air blown by the indoor unit is still hot air when the indoor fan operates at the target rotating speed, in this case, the rotating speed of the indoor fan is made equal to the target rotating speed, that is, the air conditioner controls the indoor fan to operate at the target rotating speed, so that the air output of the indoor unit can reach the standard set by a user, and the use requirement of the user is met to the maximum extent.
Drawings
FIG. 1 is a flow chart of the main steps of the air supply control method of the present invention;
fig. 2 is a flow chart of the steps of a preferred embodiment of the air supply control method of the present invention.
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. For example, although the steps of the method of the present invention are described herein in a particular order, these orders are not limiting, and one skilled in the art may perform the steps in a different order without departing from the underlying principles of the invention.
Specifically, the air conditioner comprises an indoor unit, wherein the indoor unit comprises an indoor coil pipe and an indoor fan arranged near the indoor coil pipe, and the indoor unit is also provided with an air return opening and an air inlet; it should be noted that, the present invention does not limit the specific structure of the air conditioner, and the technician can set the structure according to the actual use requirement. Meanwhile, a return air temperature sensor is also arranged at the return air inlet of the indoor unit and can measure the return air temperature of the indoor unit; and a coil pipe temperature sensor is further arranged on the indoor coil pipe and can measure the coil pipe temperature of the indoor unit.
Further, the air conditioner of the present invention further includes a controller capable of acquiring measurement data of the return air temperature sensor and the coil temperature sensor, and also capable of controlling the operation of the air conditioner, for example, controlling the rotation speed of the indoor fan, and the like. It can be understood by those skilled in the art that the present invention does not limit the specific structure and model of the controller, as long as the controller can implement the above functions, and the controller may be an original controller of the air conditioner or a controller separately configured to execute the air supply control method of the present invention, and a technician may set the structure and model of the controller according to actual needs.
Referring first to fig. 1, a flow chart of main steps of the air supply control method of the present invention is shown. As shown in fig. 1, based on the air conditioner described in the above preferred embodiment, the main steps of the air supply control method include:
s1: acquiring the current return air temperature of the indoor unit;
s2: and selectively operating the indoor fan at the target rotating speed according to the current return air temperature of the indoor unit.
Further, in step S1, the controller may obtain the current return air temperature of the indoor unit through the return air temperature sensor; it can be understood that, especially when the room is large enough, the temperature near the indoor unit may often be different from the temperature at other places in the room, and therefore the return air temperature of the indoor unit can also be regarded as the temperature near the indoor unit, thereby effectively avoiding the problem that it is difficult to prepare for judging the temperature condition near the indoor unit when directly using the indoor temperature as a parameter, that is, the air supply control method of the present invention effectively improves the accuracy of the judgment by obtaining the current return air temperature of the indoor unit as a basic parameter. It should be noted that, the present invention does not limit the way for the controller to obtain the current return air temperature, and a technician may also set a temperature sensor near the return air inlet of the indoor unit to obtain temperature data as the current outlet air temperature of the indoor unit.
Further, in step S2, the controller can selectively operate the indoor fan at a target rotation speed according to the current return air temperature of the indoor unit; it should be noted that the controller may control the rotation speed of the indoor fan by controlling the rotation speed of the driving motor of the indoor fan, and the target rotation speed is usually a user-set rotation speed determined by the user-set wind speed. In addition, it should be noted that, the present invention does not limit any specific control manner, the controller may selectively operate the indoor fan at the target rotation speed by determining the temperature range of the current return air temperature, or may selectively operate the indoor fan at the target rotation speed by determining whether the current return air temperature satisfies a preset function, and a technician may set the specific control manner according to actual needs, and it is within the protection scope of the present invention as long as the manner selectively operates the indoor fan at the target rotation speed by using the current return air temperature as a basic parameter.
Referring now to fig. 2, a flow chart of the steps of a preferred embodiment of the present invention air supply control method is shown. As shown in fig. 2, taking the air conditioner as an example when the air conditioner operates in a heating condition, and based on the air conditioner in the above preferred embodiment, the preferred embodiment of the air supply control method specifically includes the following steps:
s101: acquiring the current return air temperature of the indoor unit;
s102: judging whether the current return air temperature is lower than a preset temperature or not; if yes, executing step S104; if not, executing step S103;
s103: operating the indoor fan at a target rotation speed;
s104: acquiring the current coil temperature of the indoor unit;
s105: determining the rotating speed of an indoor fan according to the current coil temperature, the current return air temperature and a preset temperature;
s106: judging whether the determined rotating speed is less than the target rotating speed or not; if yes, go to step S107; if not, executing step S108;
s107: operating the indoor fan at the determined rotating speed;
s108: the rotating speed of the indoor fan is made equal to the target rotating speed, and then the indoor fan is made to operate at the rotating speed.
Further, in step S101, the controller can obtain the current return air temperature of the indoor unit through the return air temperature sensor; it can be understood that, especially when the room is large enough, the temperature near the indoor unit may often be different from the temperature at other places in the room, and therefore the return air temperature of the indoor unit can also be regarded as the temperature near the indoor unit, thereby effectively avoiding the problem that it is difficult to prepare for judging the temperature condition near the indoor unit when directly using the indoor temperature as a parameter, that is, the air supply control method of the present invention effectively improves the accuracy of the judgment by obtaining the current return air temperature of the indoor unit as a basic parameter. It should be noted that, the present invention does not limit the way for the controller to obtain the current return air temperature, and a technician may also set a temperature sensor near the return air inlet of the indoor unit to obtain temperature data as the current outlet air temperature of the indoor unit.
Further, in step S102, the controller determines whether the current return air temperature is lower than the preset temperature, so as to determine whether the indoor unit is likely to blow out cold air due to a change in the indoor fan speed. It should be noted that, the present invention does not limit the specific value of the preset temperature, for example, the preset temperature may be a set constant value, such as 26 ℃; of course, preferably, the preset temperature is determined according to a target indoor temperature set by a user, so that the air supply control method of the present invention can better meet heat exchange requirements of different users, in other words, a technician can set a specific value of the preset temperature according to actual use requirements.
Based on the determination result in step S102, if the controller determines that the current return air temperature is not less than the preset temperature, it indicates that the indoor unit will not blow out cold air no matter what value the user sets the rotation speed of the indoor fan; in this case, step S103 is performed, in which the controller directly controls the indoor fan to operate at the target rotation speed so as to effectively meet the amount of air supply required by the user. If the controller judges that the current return air temperature is lower than the preset temperature, the controller indicates whether the indoor unit blows out cold air and is influenced by the rotating speed of the indoor fan; in this case, step S104 is executed, that is, the controller obtains the current temperature of the indoor coil through the coil temperature sensor. It should be noted that, the present invention does not limit the way in which the controller obtains the current coil temperature, and the technician can set the current coil temperature according to the actual use requirement.
Further, step S105 is executed on the basis that the controller obtains the current coil temperature of the indoor coil, that is, the controller can determine the rotation speed of the indoor fan according to the current coil temperature, the current return air temperature and the preset temperature. It should be noted that, the invention does not limit the specific determination mode of the rotating speed of the indoor fan, and a technician can set the rotating speed according to the actual use requirement, as long as the current coil temperature, the current return air temperature and the preset temperature are used in the rotating speed determination process; preferably, the controller may determine the rotation speed N of the indoor fan by the following equation:
wherein TpiIs the current coil temperature of the indoor unit, TaiIs the current return air temperature of the indoor unit, Tp0Is the target coil temperature, T0K1 is a first correction factor for the preset temperature, NsIs the target rotational speed, N0Is the lowest rotating speed of the indoor fan, k2 is a second correction coefficient Tpi-1And delta N is the coil temperature of the indoor unit at the last moment, and is the single adjustment quantity of the rotating speed of the indoor fan.
Tp in the above formulaiThe current coil temperature obtained in step S104; ta in the above formulaiThat is, the current return air temperature obtained in step S101; tp in the above formula0In order to obtain the target coil temperature, a technician needs to set the target coil temperature according to different conditions of the air conditioner, preferably 50 ℃; t in the above formula0The preset temperature used in step S102; n in the above formulasThe target rotational speed adopted in step S103; n in the above formula0For the lowest rotation speed of the indoor fans, each fanThe indoor fans are all provided with respective rotating speed ranges, and the lowest rotating speed is the minimum value in the rotating speed range of the indoor fan; the first correction coefficient k1 and the second correction coefficient k2 in the above formula are determined by a technician through multiple fitting experiments according to the specific structure of the air conditioner; tp in the above formulai-1For the coil temperature of the indoor unit at the last moment, the controller measures the coil temperature once every a period of time, of course, the time intervals of the two measurements are set by a technician, and the above formula calculates Tpi-Tpi-1The change of the indoor coil temperature in a time interval can be obtained; Δ N in the above formula is a single adjustment amount of the rotation speed of the indoor fan, and a technician can set the single adjustment amount by himself or herself according to an actual situation of the driving motor of the indoor fan.
The skilled person in the art can understand that the air supply control method of the present invention can calculate the optimal rotation speed of the indoor fan through the above formula, so as to effectively ensure that the indoor fan can operate at a greater rotation speed as much as possible under the condition that the indoor unit can always blow out hot air, and further ensure the heat exchange rate of the indoor unit to the greatest extent on the basis of effectively ensuring user experience.
Further, since some users prefer to use a smaller wind speed for heat exchange, after the optimal rotation speed of the indoor fan is calculated by the above formula, step S106 is performed, that is, the controller can determine whether the rotation speed determined by the above formula is less than the target rotation speed. Based on the determination result in step S106, if the controller determines that the rotation speed determined by the above formula is less than the target rotation speed, it indicates that the air blown by the indoor unit can be ensured to be hotter air by directly operating the indoor fan at the rotation speed set by the user, in this case, step S107 is performed, that is, the controller directly controls the indoor fan to operate at the rotation speed determined by the above formula, so as to effectively ensure that the air blown by the indoor unit is always hot air. If the controller determines that the rotating speed determined by the above formula is not less than the target rotating speed, it indicates that the wind speed set by the user is smaller, and in this case, in order to sufficiently fit the blowing preference of the user, step S108 is executed, that is, the controller can make the rotating speed of the indoor fan equal to the target rotating speed, and then control the indoor fan to operate at the rotating speed of the indoor fan, that is, control the indoor fan to operate at the target rotating speed. Of course, this is not limiting, and the controller may not compare the rotational speed determined by the above formula with the target rotational speed, that is, the controller always controls the indoor fan to operate at the determined rotational speed.
Finally, it should be noted that the above examples are all preferred embodiments of the present invention, and should not be construed as limiting the scope of the present invention. When the present invention is actually used, a part of the steps may be added or deleted as needed or the order between the different steps may be changed by those skilled in the art. Such variations are not to be regarded as a departure from the spirit and scope of the invention.
So far, the preferred embodiments of the present invention have been described in conjunction with the accompanying drawings, but it is apparent to those skilled in the art that the scope of the present invention is 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 (5)
1. An air supply control method for an air conditioner, the air conditioner comprising an indoor unit including an indoor fan, the air supply control method comprising:
acquiring the current return air temperature of the indoor unit;
selectively enabling the indoor fan to operate at a target rotating speed according to the current return air temperature of the indoor unit;
the step of selectively operating the indoor fan at the target rotation speed according to the current return air temperature of the indoor unit specifically includes:
comparing the current return air temperature of the indoor unit with a preset temperature;
selectively enabling the indoor fan to operate at a target rotating speed according to a comparison result of the current return air temperature of the indoor unit and the preset temperature;
the step of selectively operating the indoor fan at a target rotation speed according to the comparison result of the current return air temperature of the indoor unit and the preset temperature comprises the following steps:
when the air conditioner operates in a heating working condition, if the current return air temperature of the indoor unit is lower than the preset temperature, the indoor fan is not operated at the target rotating speed;
under the condition that the air conditioner operates in a heating working condition and the current return air temperature of the indoor unit is lower than the preset temperature, the air supply control method further comprises the following steps:
acquiring the current coil temperature of the indoor unit;
determining the rotating speed of the indoor fan according to the current coil temperature of the indoor unit, the current return air temperature of the indoor unit and the preset temperature;
the step of determining the rotating speed of the indoor fan according to the current coil temperature of the indoor unit, the current return air temperature of the indoor unit and the preset temperature specifically comprises the following steps of determining the rotating speed of the indoor fan according to the following equation:
wherein N is the rotating speed of the indoor fan, TpiIs the current coil temperature of the indoor unit, TaiIs the current return air temperature of the indoor unit, Tp0Is the target coil temperature, T0K1 is a first correction factor for the preset temperature, NsIs the target rotational speed, N0Is the lowest rotating speed of the indoor fan, k2 is a second correction coefficient Tpi-1Setting the coil temperature of the indoor unit at the last moment, wherein delta N is the single adjustment of the rotating speed of the indoor fan;
the first correction coefficient and the second correction coefficient are determined by a structure of the air conditioner.
2. The air supply control method according to claim 1, further comprising:
and when the rotating speed of the indoor fan determined by the equation is greater than or equal to the target rotating speed, enabling the rotating speed of the indoor fan to be equal to the target rotating speed.
3. The air supply control method according to claim 1, wherein the step of selectively operating the indoor fan at the target rotation speed according to the comparison result between the current return air temperature of the indoor unit and the preset temperature further comprises:
and when the air conditioner operates in a heating working condition, if the current return air temperature of the indoor unit is not less than the preset temperature, the indoor fan is operated at the target rotating speed.
4. The air supply control method according to any one of claims 1 to 3, wherein the preset temperature is determined by a target indoor temperature.
5. An air conditioner characterized by comprising a controller capable of executing the air supply control method according to any one of claims 1 to 4.
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| CN201910792424.9A CN110567137B (en) | 2019-08-26 | 2019-08-26 | Air conditioner and air supply control method thereof |
| PCT/CN2020/095079 WO2021036402A1 (en) | 2019-08-26 | 2020-06-09 | Air conditioner and air supply control method therefor |
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| CN201910792424.9A CN110567137B (en) | 2019-08-26 | 2019-08-26 | Air conditioner and air supply control method thereof |
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| CN110567137B true CN110567137B (en) | 2022-03-29 |
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| CN110567137B (en) * | 2019-08-26 | 2022-03-29 | 青岛海尔空调电子有限公司 | Air conditioner and air supply control method thereof |
| CN114061037B (en) * | 2020-08-03 | 2023-04-07 | 广东美的制冷设备有限公司 | High-temperature sterilization method for air conditioner, air conditioner and readable storage medium |
| CN112303854B (en) * | 2020-10-30 | 2023-02-03 | 青岛海尔空调电子有限公司 | Control method of air suction type air conditioner |
| CN112303853B (en) * | 2020-10-30 | 2023-02-03 | 青岛海尔空调电子有限公司 | Control method of air suction type air conditioner |
| CN114562760A (en) * | 2022-02-28 | 2022-05-31 | 青岛海尔空调电子有限公司 | Air conditioning system and control method thereof |
| CN115751659A (en) * | 2022-11-17 | 2023-03-07 | 青岛海尔空调器有限总公司 | Air conditioner control method and air conditioner |
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| CN104006485B (en) * | 2013-02-21 | 2017-02-08 | 广东美的制冷设备有限公司 | Method for controlling indoor fan rotating speed of air conditioner under heating mode |
| JP6401585B2 (en) * | 2014-11-25 | 2018-10-10 | 株式会社コロナ | Air conditioner |
| CN105066353B (en) * | 2015-08-07 | 2018-03-23 | 广东美的制冷设备有限公司 | The wind speed control method and air conditioner of a kind of convertible frequency air-conditioner |
| CN106288246B (en) * | 2016-10-28 | 2019-03-22 | 合肥美的暖通设备有限公司 | A kind of control method of air-duct-type air-conditioner |
| CN110567137B (en) * | 2019-08-26 | 2022-03-29 | 青岛海尔空调电子有限公司 | Air conditioner and air supply control method thereof |
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