CN108980988B - Air conditioner indoor unit and control method of fresh air device thereof - Google Patents

Air conditioner indoor unit and control method of fresh air device thereof Download PDF

Info

Publication number
CN108980988B
CN108980988B CN201810401566.3A CN201810401566A CN108980988B CN 108980988 B CN108980988 B CN 108980988B CN 201810401566 A CN201810401566 A CN 201810401566A CN 108980988 B CN108980988 B CN 108980988B
Authority
CN
China
Prior art keywords
air
fresh air
indoor
quality value
air quality
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201810401566.3A
Other languages
Chinese (zh)
Other versions
CN108980988A (en
Inventor
冯会民
于明基
张立智
常全成
徐翔
杨聪慧
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Qingdao Haier Air Conditioner Gen Corp Ltd
Haier Smart Home Co Ltd
Original Assignee
Qingdao Haier Air Conditioner Gen Corp Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Qingdao Haier Air Conditioner Gen Corp Ltd filed Critical Qingdao Haier Air Conditioner Gen Corp Ltd
Priority to CN201810401566.3A priority Critical patent/CN108980988B/en
Publication of CN108980988A publication Critical patent/CN108980988A/en
Priority to PCT/CN2019/079084 priority patent/WO2019205844A1/en
Application granted granted Critical
Publication of CN108980988B publication Critical patent/CN108980988B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/0003—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station characterised by a split arrangement, wherein parts of the air-conditioning system, e.g. evaporator and condenser, are in separately located units
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
    • F24F11/32—Responding to malfunctions or emergencies
    • F24F11/39—Monitoring filter performance
    • 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
    • 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
    • F24F7/00—Ventilation
    • F24F7/007—Ventilation with forced flow
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
    • F24F8/10—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering
    • 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
    • F24F2110/00—Control inputs relating to air properties
    • F24F2110/50—Air quality properties
    • 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
    • F24F2110/50—Air quality properties
    • F24F2110/52—Air quality properties of the outside air
    • 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

Abstract

The invention provides an air-conditioning indoor unit and a control method of a fresh air device thereof, wherein one side of the indoor unit is provided with the fresh air device which is used for conveying outdoor fresh air to the indoor space; a purifying device is arranged in the fresh air device. The control method comprises the following steps: starting an indoor unit to operate; acquiring a quality value of indoor air; judging whether the indoor air quality value is larger than an air quality threshold value or not; if so, starting a fresh air device to change fresh air; acquiring the air quality value of the outdoor fresh air again; matching the air quality value of the outdoor fresh air with a preset cleaning program of a fresh air device; the matching condition specifies the range of the air quality value of the outdoor fresh air corresponding to the cleaning program; and determining and starting a cleaning program corresponding to the purification device according to the matching result. Therefore, the invention provides the cleaning program corresponding to the purification device, and reminds the user to carry out different cleaning programs in different stages so as to ensure that the fresh air device continuously conveys outdoor gas with excellent air index to the indoor space.

Description

Air conditioner indoor unit and control method of fresh air device thereof
Technical Field
The invention relates to the technical field of household appliances, in particular to an air conditioner indoor unit and a control method for fresh air exchange of the air conditioner indoor unit.
Background
The air conditioner is a household appliance which is widely applied, generally has heating and refrigerating functions, adjusts the temperature of indoor air when the ambient temperature is too low or too high, provides a proper indoor environment for users, and effectively improves the life quality of the users.
However, since the conventional air conditioner only circularly heats or cools indoor air during heating or cooling, and a user simultaneously closes a door of a living room to maintain the indoor temperature, the indoor air quality is gradually deteriorated, thereby adversely affecting the physical health of the user. Particularly, in recent years, the air pollution is increasingly serious, and people are reluctant to open windows for ventilation particularly in winter heating seasons, so that the indoor air quality is increasingly poor, the oxygen content is increasingly low, and the physical health is affected.
After the new trend device was introduced to present air conditioning indoor set, when using the new trend function, can increase the air quantity that carries out the heat exchange, under the unchangeable prerequisite of air conditioner heating capacity, need longer time during the air conditioner operation just can reach the temperature that the user set for, can make the heating effect worsen to influence user experience.
Disclosure of Invention
An object of the present invention is to provide a method for controlling the ventilation of an indoor unit which overcomes or at least partially solves the above problems.
It is a further object of the invention to enhance the user experience.
Another further object of the present invention is to provide an indoor unit using the fresh air exchange control method.
Particularly, the invention provides a control method of a fresh air device of an indoor unit of an air conditioner, wherein the fresh air device is arranged on one side of the indoor unit and used for conveying outdoor fresh air to the indoor space; a purifying device is arranged in the fresh air device;
the control method comprises the following steps:
starting an indoor unit to operate;
acquiring a quality value of indoor air;
judging whether the indoor air quality value is larger than an air quality threshold value or not;
if so, starting a fresh air device to change fresh air;
acquiring the air quality value of outdoor fresh air entering the room;
matching the air quality value of the outdoor fresh air with a preset cleaning program of a fresh air device; the matching condition specifies the range of the air quality value of the outdoor fresh air corresponding to the cleaning program;
determining and starting a cleaning program corresponding to the purification device according to the matching result; wherein
The purification device comprises a purification module positioned at an air outlet of the purification device and a dust removal module positioned at an air inlet of the purification device.
Preferably, the range of the air quality value of the fresh outdoor air corresponding to the cleaning program comprises:
when the air quality value of the outdoor fresh air is larger than the first preset fresh air quality value and smaller than the second preset fresh air quality value, the cleaning program is a cleaning and purifying module;
when the air quality value of the outdoor fresh air is greater than or equal to the second preset fresh air quality value and smaller than the third preset fresh air quality value, the cleaning program is a cleaning and dust removing module; or
When the air quality value of the outdoor fresh air is larger than or equal to the third preset fresh air quality value, the cleaning program comprises a cleaning and purifying module and a dust removal module.
Preferably, the step of obtaining the indoor air quality value further comprises
Judging whether the indoor air quality value is larger than a first preset indoor air quality value or not;
if so, starting the fresh air device to change fresh air by running at a first air change rotating speed;
acquiring the indoor air quality value again;
judging whether the indoor air quality value is less than or equal to a first preset indoor air quality value and greater than a second preset indoor air quality value or not;
if so, the fresh air device operates at a second air exchange rotating speed to exchange fresh air;
and stopping running the fresh air device until the indoor air quality value is less than or equal to a second preset indoor air quality value.
Preferably, the determining whether the indoor air quality value is greater than the first preset indoor air quality value further comprises:
if not, the fresh air device operates at a second air exchange rotating speed for a first preset time to exchange fresh air;
stopping running the fresh air device for a second preset time;
and the centrifugal fan of the fresh air device is operated at the default air exchange rotating speed to exchange fresh air until the indoor air quality is less than or equal to the second preset indoor air quality value, and the fresh air device is stopped from operating.
Preferably, still include after the new trend device of stopping operation:
acquiring a quality value of indoor air;
if the indoor air quality value is larger than the second preset indoor air quality value, the fresh air device operates at the default air exchange rotating speed to exchange fresh air until the indoor air quality value is smaller than or equal to the second preset indoor air quality value, and the fresh air device stops operating.
Preferably, still include after the new trend device of stopping operation:
acquiring indoor temperature and indoor air quality values;
judging whether the indoor temperature is lower than the preset temperature and whether the indoor air quality value is less than or equal to a second preset indoor air quality value;
if so, the indoor unit and the fresh air device are stopped.
Preferably, if not, if the indoor temperature reaches the preset temperature and the indoor air mass value is greater than a second preset indoor air mass value;
and the air feeder of the indoor unit stops running, the fresh air device runs at a second air exchange rotating speed, and the fresh air device stops running until the indoor air quality value is less than or equal to a second preset indoor air quality value.
Preferably, if not, if the indoor temperature is greater than the indoor preset temperature and the indoor air mass value is less than or equal to a second preset indoor air mass value;
and stopping the operation of the fresh air device, continuously refrigerating the indoor unit until the indoor temperature is less than or equal to the indoor preset temperature, and stopping the operation of the indoor unit.
Preferably, when the fresh air device operates at a first air exchange rotating speed, the blower of the indoor unit operates at a first air supply speed;
when the fresh air device runs at a second air exchange rotating speed, the blower of the indoor unit runs at a second air supply speed;
when the fresh air device runs at the default air exchange rotating speed, the blower of the indoor unit runs at the default air supply speed;
when the fresh air device stops operating, the blower of the indoor unit operates at a second blowing air speed;
when the indoor unit stops operating, the fresh air device operates at the default air exchange rotating speed.
Preferably, the first ventilation rotational speed is greater than the default ventilation rotational speed; the second air exchange rotating speed is less than the default air exchange rotating speed;
the first air supply speed is greater than the default air supply speed; the second supply air speed is greater than the default supply air speed.
The present invention also provides an air-conditioning indoor unit, comprising:
the top of the shell is provided with an air inlet, and the lower part of the shell is provided with an air outlet;
the fresh air device is arranged at one side end part of the shell; wherein
The fresh air device comprises an air inlet module and a fan module communicated with the air inlet module;
the air inlet of the air inlet module is communicated to the outside; the fan module comprises a centrifugal fan, and the centrifugal fan is configured to suck air from the outside of the air inlet module and discharge the air to the inside of the room from an air outlet of the fan module;
a controller including a first air quality detector, a second air quality detector, and a temperature detector; a first air quality detector configured to detect air quality within the room; the second air quality detector is configured to detect the air quality of the outdoor fresh air; the temperature detector is configured to detect a temperature within the chamber; and
a memory in which a computer program is stored, and the computer program, when executed, causes the controller to execute the control method described above.
The invention provides an indoor unit, on one hand, because the fresh air device is additionally arranged on the traditional air-conditioning indoor unit, the purifying device is arranged in the fresh air device and comprises the purifying module and the dust removal module, outdoor air can be introduced into a room through the fresh air device even if a window is closed in the air-conditioning refrigeration or heating process, continuous and fresh air is provided for a closed indoor space, so that the oxygen content of the indoor air is increased, and air-conditioning diseases are avoided.
According to another aspect of the present invention, there is provided a control method for the above fresh air device, when outdoor air is polluted, the polluted air is continuously sent to indoor space, and then purified by the purification device and sent to indoor space, so that the pollutants are collected and deposited by the purification device for a long time, and the purification degree of the outdoor air is affected, which is hard to be perceived by users. Therefore, the invention provides the cleaning program corresponding to the purification device, and reminds the user to carry out different cleaning programs in different stages so as to ensure that the fresh air device continuously conveys outdoor gas with excellent air index to the indoor space.
Furthermore, the indoor air quality value is taken as a main reference standard, and when the indoor air quality value is larger than a first preset indoor air quality value, namely the indoor air is seriously polluted, the fresh air device operates at a first air exchange rotating speed (namely high speed) to exchange fresh air, so that the pollution degree of the indoor air is reduced as soon as possible; when the indoor air quality value is reduced to be lower than the first preset indoor air quality value, the fresh air device operates at a second air exchange rotating speed (namely low speed) to exchange fresh air, and the fresh air device stops operating until the indoor air quality value is smaller than or equal to the second preset indoor air quality value.
Furthermore, after the operation of the fresh air device is stopped, when the indoor air quality value is greater than the second preset indoor air quality value again, the fresh air device operates at the default air exchange rotating speed (namely medium speed) to exchange fresh air until the indoor air quality value is less than or equal to the second preset indoor air quality value, the operation of the fresh air device is stopped, and the operation is repeated in such a circulating way, so that the good air quality is maintained for a long time.
Furthermore, in order to prevent the indoor temperature from generating large fluctuation after the fresh air is introduced, if the indoor temperature reaches the preset temperature and the indoor air quality value is larger than a second preset indoor air quality value; the air feeder of the indoor unit stops running, the fresh air device runs at a second air exchange rotating speed, and the fresh air device stops running until the indoor air quality value is smaller than or equal to a second preset indoor air quality value; if the indoor temperature is greater than the indoor preset temperature and the indoor air mass value is less than or equal to a second preset indoor air mass value; and stopping the operation of the fresh air device, continuously refrigerating the indoor unit until the indoor temperature is less than or equal to the indoor preset temperature, and stopping the operation of the indoor unit.
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 drawn to scale. In the drawings:
fig. 1 is a flow chart of a method for controlling a fresh air device of an indoor unit of an air conditioner according to an embodiment of the invention;
fig. 2 is an alternative flow chart of a method for controlling a fresh air device of an indoor unit of an air conditioner according to an embodiment of the invention;
fig. 3 is another alternative flow chart of a method for controlling a fresh air device of an air-conditioning indoor unit according to an embodiment of the invention;
fig. 4 is a flow chart of another alternative of a method for controlling a fresh air device of an indoor unit of an air conditioner according to an embodiment of the present invention;
fig. 5 is a flow chart of an alternative method for controlling a fresh air device of an indoor unit of an air conditioner according to an embodiment of the present invention;
fig. 6 is a schematic structural view of an air conditioning indoor unit according to an embodiment of the present invention.
Detailed Description
The embodiment first provides a control method for fresh air exchange of an air-conditioning indoor unit, and fig. 1 is a flowchart of the control method for fresh air exchange of the air-conditioning indoor unit according to an embodiment of the invention.
Generally, after a fresh air device is additionally arranged in a traditional indoor unit, the refrigerating effect of an air conditioner can be influenced when the air conditioner operates in a refrigerating mode, and a purifying device is arranged in the fresh air device. If the operation of the fresh air device is not controlled independently, under the refrigeration mode, the temperature difference of the air needing heat exchange in the unit area is larger, the required energy is more, but the refrigeration capacity is not changed, the whole refrigeration effect of the air conditioner is poor. Through the independent control to when new trend device moves, under the prerequisite that does not influence refrigeration effect, for indoor fresh air that changes for the user reaches the best comfortable experience. In order to achieve the above object, this embodiment provides a special control method for a fresh air device.
Referring to fig. 1, the method for controlling a fresh air device of an indoor unit of an air conditioner in this embodiment includes:
s102: starting an indoor unit to operate;
and confirming the operation of the indoor unit, and enabling the indoor unit to start to cool/heat the indoor air.
S104: acquiring a quality value of indoor air;
the air quality value is used as a basis for judging whether a fresh air device of the indoor unit is started.
S106: whether the air mass value is greater than an air mass value threshold;
if yes, go to step S108: starting a fresh air device, and conveying outdoor fresh air to the indoor space;
if not, the indoor air quality is good, and the fresh air device does not need to be started to exchange fresh air.
In the case of different air quality values, the rotational speeds of the centrifuges of the respective fresh air devices are different, as will be described in detail in the following description.
After the fresh air system operates for a period of time, the purification device of the fresh air is accumulated by dust of polluted gas, so that the quality of outdoor air entering the room is influenced, and the quality of the outdoor air entering the room needs to be monitored.
After the fresh air device operates for a period of time, step S110 is executed to obtain the air quality value of the outdoor fresh air entering the room, so as to detect the air quality of the outdoor fresh air entering the room.
S112: the air quality value who matches outdoor new trend and the cleaning procedure of new trend device correspond the cleaning procedure of matching different new trend devices according to the air quality value scope of difference, and cleaning procedure clears up the purifier of new trend device, and purifier is including the dust removal module that is located its purification module of air outlet department and air inlet department, specifically see following detailed description.
If yes, go to step S114: a cleaning procedure is initiated.
If not, step S110 is executed, and the air quality value of the outdoor fresh air is continuously obtained.
Furthermore, the invention also provides a schematic diagram of the air quality value range and the matching condition of the fresh air device, and fig. 2 is an optional flow chart of the control method of the fresh air device of the indoor unit of the air conditioner according to an embodiment of the invention; the method comprises the following specific steps:
step S202: matching the air quality value of the outdoor fresh air with a cleaning program of a fresh air device; the matching conditions are divided into three cases:
in the first case, step S204: and when the air quality value of the outdoor fresh air is greater than the first preset fresh air quality value and less than the second preset fresh air quality value, executing the step S206 and cleaning the purification module. In this case, the pollution degree of the outdoor air entering the room is small, which means that the purification function of the purification module is reduced, and the purification effect is affected, so that the outdoor air needs to be cleaned by a user.
In the second case, step S208: and when the air quality value of the outdoor fresh air is greater than or equal to the second preset fresh air quality value and smaller than the third preset fresh air quality value, executing the step S210, and cleaning the filtering module. Under the condition, outdoor air pollution entering the room is aggravated, the filtering function of the primary filtering module entering the room is reduced, large-particle pollutants enter the fresh air module, the purifying function of the purifying module is aggravated, the purifying function of the purifying module is indirectly influenced, and through multiple tests, the inventor only cleans the filtering module under the condition, so that a better effect can be achieved, and the cost of manual cleaning is reduced.
Third, step S212: and when the air quality value of the outdoor fresh air is greater than or equal to the third preset fresh air quality value, executing the step S214, and cleaning the purification module and the filtering module. Under the condition, the outdoor air entering the room is seriously polluted, the condition can occur under the condition that the outdoor air is seriously polluted for a long time, and the filtering function of the filtering module and the purifying function of the purifying module are greatly weakened, so that the outdoor air entering the room can reach the standard by cleaning the purifying module and the filtering module at the same time.
Specifically, a dust sensor is employed to detect the refrigeration of outdoor air entering the room. When the detection value of the dust sensor is less than 35 mu g/m3When the air quality is high, the air quality is good, and the detection value is more than 35 mu g/m3Less than 75 mug/m3When the quality of the air sent into the room is good, the cleaning and purifying module is required to be cleaned; when the detection value is more than 75 mu g/m3Less than 115 mu g/m3When the air is in a room, the air quality is slightly polluted, and the filtering module needs to be cleaned; when the detection value is more than 115 mu g/m3When the air quality is seriously polluted, the purification module and the filtering module need to be cleaned at the same time; and if the conditions are worse, the purification module and the filtering module can be replaced in time.
After the fresh air device operates for a period of time, the operation mode of the fresh air device needs to be controlled so as to reduce the energy consumption of the air conditioner to the lowest point. Fig. 3 is another alternative flow chart of a method for controlling a fresh air device of an air conditioning indoor unit according to an embodiment of the present invention, which includes the following steps:
s302: acquiring a quality value of indoor air;
the air quality value controls the basis of the operation mode of the fresh air device.
S304: whether the air quality value is greater than a first preset indoor air quality value;
if yes, go to step S306: the fresh air device is operated at a first air exchange rotating speed to exchange fresh air;
if not, the fresh air device continues to operate at the first air exchange rotating speed to exchange fresh air so as to reduce the indoor air quality value.
In the case of different air quality values, the rotational speeds of the centrifuges of the respective fresh air devices are different, as will be described in detail in the following description.
After the fresh air device operates for a period of time at the first air exchange rotation speed, step S308 is executed to obtain the indoor air quality value again, so as to detect the indoor air quality after the fresh air exchange for a period of time.
S310: whether the air quality value is smaller than or equal to the first preset indoor air quality value and larger than the second preset indoor air quality value or not, at the moment, the first preset indoor air quality value is larger than the second preset indoor air quality value, and the fact that the fresh air device improves indoor air quality to a certain extent is shown.
If yes, go to step S312: the fresh air device changes fresh air at a second air change rotating speed so as to further improve the indoor air quality.
When the fresh air device runs for a period of time at the second air exchange rotating speed, the air quality value is compared with the preset air quality value again, and then the step S314 is executed: until the air mass value is less than or equal to a second predetermined indoor air mass value. Step S316 is executed: and stopping running the fresh air device, namely the indoor air quality reaches the standard.
If not, the fresh air device continues to operate at the second air exchange rotating speed until the air mass value is smaller than the second preset indoor air mass value.
Further, if the air quality value is less than or equal to the first preset indoor air quality value in step S304, it indicates that the indoor air quality is not seriously polluted, but in order to effectively improve the circulation of the closed indoor air, step S318 is executed, the fresh air device operates at the second air exchange rotation speed to exchange fresh air, after the fresh air device operates for the first preset time, the operation of the fresh air device is stopped, and at this time, the indoor air quality value reaches the standard, and no outdoor fresh air needs to be introduced.
In the present invention, the air quality may refer to PM2.5, CO2 content, dust pollution, and the like.
Step S320, after the fresh air device stops operating for a second preset time and the indoor air quality value is reduced, step S322 is executed, and the fresh air device operates at the default air exchange rotation speed until the air quality value is less than or equal to the second preset indoor air quality value, and stops operating the fresh air device.
In the initial stage of starting the indoor unit, the fresh air device runs at a high speed to accelerate the improvement of the quality of indoor air, but after the indoor air basically reaches the standard, the fresh air device can directly run at a low speed to maintain the indoor air quality, the fresh air device does not need to run at a medium speed, the purpose of maintaining the indoor temperature and the indoor air quality can be achieved, better user experience is provided for users, and the control method can reduce the overall energy consumption of the air conditioner to the minimum.
In another alternative embodiment, after step S118 is executed, the fresh air device is in a stop state, and then the indoor air quality will be reduced with the time being prolonged, so that the fresh air device still needs to be further controlled subsequently, fig. 4 is another alternative flowchart of the method for controlling the fresh air device of the indoor unit of the air conditioner according to an embodiment of the present invention, and the specific control steps are as follows:
s402: stopping running the fresh air device;
when the fresh air device stops operating for a period of time, the indoor air does not convey fresh outdoor air, and the indoor air quality is necessarily reduced.
S404: acquiring a quality value of indoor air;
s406: judging whether the air quality value is larger than a second preset indoor air quality value or not;
if yes, executing step S408, and operating the fresh air device at the default air exchange rotating speed to exchange fresh air;
if not, the step S402 is continuously executed, and the fresh air device stops running.
Continuing to execute step S410, determining whether the air quality value is less than or equal to a second preset indoor air quality value;
if yes, executing step S412 to stop operating the fresh air device;
if not, the step S408 is continuously executed, and the fresh air device continuously operates at the default air exchange rotating speed to exchange fresh air.
However, in the above embodiment, the process of introducing the outdoor fresh air necessarily affects the indoor temperature to cause a change in the indoor temperature, and for this reason, the present invention further provides another embodiment, and fig. 5 is another optional flowchart of the method for controlling the fresh air device of the indoor unit of the air conditioner according to an embodiment of the present invention, and the specific process is as follows:
s502: stopping running the fresh air device;
after the indoor air quality reaches the standard, the fresh air device stops running, but the outdoor fresh air sent into the room before can interfere with the indoor temperature to a certain extent.
S504: an indoor temperature and an indoor air quality value are obtained.
S506: judging whether the indoor temperature is lower than the preset temperature and the air quality is lower than or equal to a second preset indoor air quality value;
in this embodiment, two variables, namely, the indoor temperature and the air quality value, are selected to control the operation of the fresh air device.
If yes, executing step S508, and stopping running the indoor unit and the fresh air device;
if not, the two cases are processed separately, as described in detail below.
In the first case, in step S510, the indoor temperature reaches the preset temperature, but the air quality value is greater than the second preset indoor air quality value, which indicates that the indoor air quality does not reach the standard, then step S512 is executed.
S512: and stopping running the indoor unit, and running the fresh air device at a second air exchange rotating speed so as to input outdoor fresh air into the indoor unit at a low speed.
After the fresh air device runs for a period of time at the second air exchange rotating speed, executing step S514, and judging whether the air quality value is less than or equal to a second preset indoor air quality value;
if yes, executing step S516, and stopping running the fresh air device;
if not, the fresh air device continues to send fresh air into the room so as to improve the indoor air quality.
In the second case, step S518, if the indoor temperature is higher than the preset temperature but the air quality value is less than or equal to the second preset indoor air quality value, which indicates that the indoor temperature is higher, step S520 is executed.
S520: and stopping running the fresh air device, and continuously refrigerating the indoor unit.
After the indoor unit operates for a period of time, the indoor air quality value is obtained again,
s522: and judging whether the indoor temperature is less than or equal to the indoor preset temperature.
If yes, executing step S524, and stopping running the indoor unit;
if not, the indoor unit continues to refrigerate.
In this embodiment, the preset temperature has a 2 ℃ deviation from the target refrigerating temperature, assuming that the target temperature is 26 ℃, a temperature difference of ± 2 ℃ is allowed, when the preset temperature range is reached, the indoor unit stops operating, the fresh air device operates for a period of time, and then the temperature becomes 28 ℃, the indoor unit performs refrigerating operation, and after another period of time, the air quality reaches the standard, the fresh air device stops operating, and the indoor unit continues to operate until the preset temperature is met.
The technical scheme provided by the invention can control the indoor air quality while controlling the indoor temperature more stably, and provides good experience for users.
In the above embodiments, when the fresh air device operates at the first air exchange rotation speed, the blower of the indoor unit operates at the first air supply speed; when the fresh air device runs at a second air exchange rotating speed, the blower of the indoor unit runs at a second air supply speed; when the fresh air device runs at the default air exchange rotating speed, the blower of the indoor unit runs at the default air supply speed; when the fresh air device stops operating, the blower of the indoor unit operates at a second blowing air speed; when the indoor unit stops operating, the fresh air device operates at the default air exchange rotating speed.
Further, the first ventilation speed (high speed) is greater than the default ventilation speed (medium speed); the second ventilation rotating speed (low speed) is less than the default ventilation rotating speed (medium speed); the first air supply speed is greater than the default air supply speed; the second supply air speed is greater than the default supply air speed.
When the fresh air device runs at a high speed, a large amount of fresh air is sent into a room in a short time, and therefore in cooperation, the air supply fan of the indoor unit also adopts a high rotating speed to enable the fresh air to be subjected to heat exchange and sent into the room. If the blower of the indoor unit sends fresh air into the room at a low speed, more fresh air cannot be sent into the indoor unit for heat exchange and then is discharged from the air supply outlet, so that the indoor temperature fluctuation is large, and therefore the centrifugal machine of the fresh air device and the blower of the indoor unit need to be reasonably matched, and the indoor temperature fluctuation is small.
When the fresh air device stops running and the indoor temperature is at the basic temperature, the blower of the indoor unit can use low-speed circulating indoor air to provide better experience for users, so as to save energy.
When the indoor unit stops operating, the centrifugal machine of the fresh air device operates at a medium speed to ensure indoor air quality, and if the centrifugal machine of the fresh air device has a small rotating speed, the indoor air quality may not be ensured.
The present invention also provides an indoor unit of an air conditioner, and fig. 6 is a schematic structural view of the indoor unit of the air conditioner according to an embodiment of the present invention. The indoor unit 100 includes a casing 110 and a fresh air device 120, wherein the top of the casing 110 has an air inlet, and the bottom of the casing 110 has an air outlet; the fresh air device 120 is disposed at one side end of the casing 110.
The fresh air device 120 comprises an air inlet module 121 and a fan module 122 communicated with the air inlet module 121;
the air inlet of the air inlet module 121 is communicated to the outside; the fan module 122 includes a centrifugal fan configured to suck air from the outside of the room through the air intake module 121 and discharge the air to the inside of the room through an air outlet of the fan module 122.
The indoor unit 100 further includes a controller 140 and a memory 150. The controller 140 is provided with a first air quality detector 141, a second air quality detector 142 and a temperature detector 143, wherein the first air quality detector 141 is configured to detect the air quality in the room, and the first air quality detector 142 is configured to detect the air quality of fresh outdoor air; the temperature detector 143 is configured to detect a temperature inside the chamber. The memory 150 stores therein a computer program, and the computer program 151 runs to cause the controller to execute the control method of each of the above embodiments.
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 device of an indoor unit of an air conditioner is characterized in that the fresh air device is arranged on one side of the indoor unit and used for conveying outdoor fresh air to the indoor space; a purifying device is arranged in the fresh air device;
the control method comprises the following steps:
starting the indoor unit to operate;
acquiring a quality value of indoor air;
judging whether the indoor air quality value is larger than an air quality threshold value;
if so, starting the fresh air device to change fresh air;
acquiring the air quality value of the outdoor fresh air entering the room;
matching the air quality value of the outdoor fresh air with a preset cleaning program of the fresh air device; the matching condition specifies the range of the air quality value of the outdoor fresh air corresponding to the cleaning program;
determining and starting a cleaning program corresponding to the purification device according to the matching result; wherein
The purification device comprises a purification module positioned at an air outlet and a dust removal module positioned at an air inlet; the range of the air quality value of the outdoor fresh air corresponding to the cleaning program comprises:
when the air quality value of the outdoor fresh air is larger than a first preset fresh air quality value and smaller than a second preset fresh air quality value, the cleaning program is used for cleaning the purification module;
when the air quality value of the outdoor fresh air is greater than or equal to the second preset fresh air quality value and smaller than a third preset fresh air quality value, the cleaning program is used for cleaning the dust removal module; or
And when the air quality value of the outdoor fresh air is greater than or equal to the third preset fresh air quality value, the cleaning program is used for cleaning the purification module and the dust removal module.
2. The control method of claim 1, further comprising determining whether the air mass value in the room is greater than a first predetermined indoor air mass value after obtaining the indoor air mass value;
if so, starting the fresh air device to operate at a first air exchange rotating speed to exchange fresh air;
acquiring the air quality value in the room again;
judging whether the indoor air quality value is less than or equal to a first preset indoor air quality value and greater than a second preset indoor air quality value or not;
if so, the fresh air device operates at a second air exchange rotating speed to exchange fresh air;
and stopping operating the fresh air device until the indoor air quality value is less than or equal to the second preset indoor air quality value.
3. The control method of claim 2, said determining whether the indoor air quality value is greater than a first predetermined indoor air quality value further comprising:
if not, the fresh air device operates at a second air exchange rotating speed for a first preset time to exchange fresh air;
stopping running the fresh air device for a second preset time;
and the centrifugal fan of the fresh air device is operated at a default air exchange rotating speed to exchange fresh air until the indoor air quality is less than or equal to the second preset indoor air quality value, and the fresh air device is stopped from operating.
4. The control method according to claim 2, further comprising, after the operation of the fresh air device is stopped:
obtaining a mass value of air within the room;
if the indoor air quality value is larger than the second preset indoor air quality value, the fresh air device operates at a default air exchange rotating speed to exchange fresh air until the indoor air quality value is smaller than or equal to the second preset indoor air quality value, and the fresh air device stops operating.
5. The control method according to claim 2, further comprising, after the operation of the fresh air device is stopped:
acquiring indoor temperature and indoor air quality values;
judging whether the indoor temperature is lower than a preset temperature or not and whether the indoor air quality value is smaller than or equal to a second preset indoor air quality value or not;
if so, stopping operating the indoor unit and the fresh air device.
6. The control method according to claim 5,
if not, if the indoor temperature reaches the preset temperature and the indoor air quality value is larger than the second preset indoor air quality value;
and the air feeder of the indoor unit stops running, the fresh air device runs at the second air exchange rotating speed, and the fresh air device stops running until the indoor air quality value is less than or equal to the second preset indoor air quality value.
7. The control method according to claim 5,
if not, if the indoor temperature is higher than the preset temperature and the indoor air mass value is less than or equal to the second preset indoor air mass value;
and stopping the operation of the fresh air device, continuously refrigerating the indoor unit until the indoor temperature is less than or equal to the preset temperature, and stopping the operation of the indoor unit.
8. The control method according to claim 3,
when the fresh air device operates at the first air exchange rotating speed, the blower of the indoor unit operates at a first air supply speed;
when the fresh air device operates at the second air exchange rotating speed, the blower of the indoor unit operates at a second air supply speed;
when the fresh air device runs at the default air exchange rotating speed, the blower of the indoor unit runs at the default air supply speed;
when the fresh air device stops running, the blower of the indoor unit runs at the second blowing air speed;
when the indoor unit stops operating, the fresh air device operates at the default air exchange rotating speed.
9. The control method according to claim 8,
the first ventilation rotating speed is greater than the default ventilation rotating speed; the second ventilation rotating speed is less than the default ventilation rotating speed;
the first air supply speed is greater than the default air supply speed; the second supply air speed is greater than the default supply air speed.
10. An indoor unit of an air conditioner, comprising:
the top of the shell is provided with an air inlet, and the lower part of the shell is provided with an air outlet;
the fresh air device is arranged at one side end part of the shell; wherein
The fresh air device comprises an air inlet module and a fan module communicated with the air inlet module;
the air inlet of the air inlet module is communicated to the outside; the fan module comprises a centrifugal fan, and the centrifugal fan is configured to suck air from the outside of the air inlet module and discharge the air from an air outlet of the fan module to the inside of the room;
a controller including a first air quality detector, a second air quality detector, and a temperature detector; the first air quality detector is configured to detect air quality within a room; the second air quality detector is configured to detect the air quality of the fresh outdoor air; the temperature detector is configured to detect a temperature within the chamber; and
a memory in which a computer program is stored and which, when run, causes the controller to perform the control method according to any one of claims 1 to 9.
CN201810401566.3A 2018-04-28 2018-04-28 Air conditioner indoor unit and control method of fresh air device thereof Active CN108980988B (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN201810401566.3A CN108980988B (en) 2018-04-28 2018-04-28 Air conditioner indoor unit and control method of fresh air device thereof
PCT/CN2019/079084 WO2019205844A1 (en) 2018-04-28 2019-03-21 Air conditioner indoor unit and control method for fresh air device thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201810401566.3A CN108980988B (en) 2018-04-28 2018-04-28 Air conditioner indoor unit and control method of fresh air device thereof

Publications (2)

Publication Number Publication Date
CN108980988A CN108980988A (en) 2018-12-11
CN108980988B true CN108980988B (en) 2020-09-25

Family

ID=64542403

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201810401566.3A Active CN108980988B (en) 2018-04-28 2018-04-28 Air conditioner indoor unit and control method of fresh air device thereof

Country Status (2)

Country Link
CN (1) CN108980988B (en)
WO (1) WO2019205844A1 (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108980988B (en) * 2018-04-28 2020-09-25 青岛海尔空调器有限总公司 Air conditioner indoor unit and control method of fresh air device thereof
US11960261B2 (en) 2019-07-12 2024-04-16 Johnson Controls Tyco IP Holdings LLP HVAC system with sustainability and emissions controls
CN109812943A (en) * 2019-01-29 2019-05-28 陈晖元 New blower control method, new blower and storage medium
US11761660B2 (en) 2019-01-30 2023-09-19 Johnson Controls Tyco IP Holdings LLP Building control system with feedback and feedforward total energy flow compensation
CN114364926B (en) 2019-07-12 2024-04-05 江森自控泰科知识产权控股有限责任合伙公司 HVAC system with design and operation tools for building infection control
US11274842B2 (en) 2019-07-12 2022-03-15 Johnson Controls Tyco IP Holdings LLP Systems and methods for optimizing ventilation, filtration, and conditioning schemes for buildings
US11714393B2 (en) 2019-07-12 2023-08-01 Johnson Controls Tyco IP Holdings LLP Building control system with load curtailment optimization
CN112856777A (en) * 2019-11-26 2021-05-28 佛山市云米电器科技有限公司 Fresh air system control method and device and computer readable storage medium
CN111397124A (en) * 2020-03-24 2020-07-10 珠海格力电器股份有限公司 Fresh air conditioner control method and device
CN112229042B (en) * 2020-10-15 2022-02-11 珠海格力电器股份有限公司 Air outlet method and device for fresh air of air conditioner, electronic equipment and computer readable medium
CN114608131A (en) * 2022-02-21 2022-06-10 青岛海尔空调器有限总公司 Method and device for controlling air conditioner, air conditioner and storage medium

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103267328B (en) * 2013-05-31 2015-09-02 美埃（中国）环境净化有限公司 A kind of intelligent air quality safeguards system and control method thereof
JP6376507B2 (en) * 2014-03-27 2018-08-22 Toto株式会社 Air conditioner
CN105588259B (en) * 2014-12-05 2018-03-30 青岛海信日立空调系统有限公司 A kind of VMC and control method, control device
CN104864503A (en) * 2015-05-31 2015-08-26 成都归谷环境科技有限责任公司 Fan coil with fresh air purification intelligent control function
CN104879842A (en) * 2015-05-31 2015-09-02 成都归谷环境科技有限责任公司 Split air conditioner with fresh air purification intelligent control device
CN109564020A (en) * 2016-08-08 2019-04-02 3M创新有限公司 Air filter situation sensing
CN106969467A (en) * 2017-04-01 2017-07-21 青岛海尔空调器有限总公司 A kind of air-conditioning automatically cleaning control method and device
CN108980988B (en) * 2018-04-28 2020-09-25 青岛海尔空调器有限总公司 Air conditioner indoor unit and control method of fresh air device thereof

Also Published As

Publication number Publication date
WO2019205844A1 (en) 2019-10-31
CN108980988A (en) 2018-12-11

Similar Documents

Publication Publication Date Title
CN108980988B (en) Air conditioner indoor unit and control method of fresh air device thereof
CN107796093B (en) Control method for preventing condensation of air conditioner and air conditioner
CN107702285B (en) Fresh air fan and air conditioner linkage system, control method and device thereof, and storage medium
CN108278662A (en) The control method and air conditioner of air conditioner
CN110895010B (en) Air conditioner control method and device, storage medium and air conditioner
CN107883537B (en) Fresh air fan system, control method and device thereof and computer readable storage medium
KR20170096730A (en) System and method of controlling air quality, and analyzing server
CN105333566A (en) Control methods for fresh air heat exchange air conditioning system and system
CN108375172B (en) Air conditioner control method and air conditioner
CN101256061A (en) Method for cleaning air conditioner evaporator
CN104776555A (en) Thermostatic dehumidification control method and device of air conditioner
CN109556188A (en) Air conditioner and its control method, control device
CN104764157B (en) Utilize the method for air conditioner purification air
CN108731198A (en) A kind of control method of air conditioner indoor unit and its inletting fresh air
CN209445511U (en) Air conditioner
CN112944560A (en) Fresh air ventilation system and ventilation control method and device thereof at night in winter
CN113310125A (en) Air conditioner with humidifying module and control method thereof
CN108562015A (en) A kind of anti-condensation air conditioning control method and device
CN101109552A (en) Temperature sensing and setting device and method for commercial indoor set of air-conditioner
CN108562014A (en) A kind of anti-condensation air conditioning control method and device
KR101790690B1 (en) Ventilator having function of dew condensation prevention and the controlling method the same
CN108050669A (en) The control method and air conditioner of air conditioner
CN113251519A (en) Directional fresh air ventilation system and control method
CN113251518A (en) Fresh air ventilation system and control method
CN113639429A (en) Method and device for controlling air conditioner and intelligent air conditioner

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant
TR01 Transfer of patent right
TR01 Transfer of patent right

Effective date of registration: 20201104

Address after: 266101 Haier Industrial Park, Haier Road, Laoshan District, Shandong, Qingdao, China

Patentee after: QINGDAO HAIER AIR CONDITIONER GENERAL Corp.,Ltd.

Patentee after: Haier Zhijia Co.,Ltd.

Address before: 266101 Haier Industrial Park, Haier Road, Laoshan District, Shandong, Qingdao, China

Patentee before: QINGDAO HAIER AIR CONDITIONER GENERAL Corp.,Ltd.