CN107990407A - The control method of indoor heat-exchanger rig, air conditioner and air conditioner - Google Patents
The control method of indoor heat-exchanger rig, air conditioner and air conditioner Download PDFInfo
- Publication number
- CN107990407A CN107990407A CN201610951035.2A CN201610951035A CN107990407A CN 107990407 A CN107990407 A CN 107990407A CN 201610951035 A CN201610951035 A CN 201610951035A CN 107990407 A CN107990407 A CN 107990407A
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- China
- Prior art keywords
- unit
- return air
- indoor
- heat exchange
- air
- 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.)
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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
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/0007—Indoor units, e.g. fan coil units
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/30—Arrangement or mounting of heat-exchangers
-
- 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 discloses the control method of a kind of indoor heat-exchanger rig, air conditioner and air conditioner.The interior heat-exchanger rig includes indoor heat exchange unit (1) and auxiliary return air unit (2), the side that indoor heat exchange unit (1) is disposed in the interior, auxiliary return air unit (2) is disposed in the interior the opposite side away from indoor heat exchange unit (1), and indoor return air is delivered to the return air inlet (3) of indoor heat exchange unit (1).Interior heat-exchanger rig according to the present invention, enables to room air more fully to participate in exchanging heat, indoor temperature distribution is more uniform, and user experience is more preferable.
Description
Technical field
The present invention relates to air-conditioning technical field, in particular to a kind of indoor heat-exchanger rig, air conditioner and air conditioner
Control method.
Background technology
Air conditioner includes indoor unit and outdoor unit, and wherein indoor unit includes indoor heat exchanger, and indoor heat exchanger follows interior
Ring wind exchanges heat so that indoor temperature gradually reaches design temperature, so as to fulfill the accurate adjustment to indoor temperature.
In order to shorten pipeline, the thermal loss of refrigerant pipeline is reduced, indoor unit generally closes on setting, refrigerant stream with outdoor unit
Heat exchange cycle is carried out through indoor unit and outdoor unit.Since indoor unit is located at indoor side, return air flow circuit indoors
During, the air away from indoor unit side is often difficult to participate in indoor air flows circulation, causes interior to be flowed
The air of circulation is a part, and interior easily heat exchanging corner occurs, and air flow is not smooth, on the one hand causes heat exchange efficiency to drop
It is low, indoor temperature distribution on the other hand can be caused uneven, reduce the usage experience of user.
The content of the invention
The purpose of the present invention is to propose to the control method of a kind of indoor heat-exchanger rig, air conditioner and air conditioner, enable to
Room air more fully participates in exchanging heat, and indoor temperature distribution is more uniform, and user experience is more preferable.
According to an aspect of the invention, there is provided a kind of interior heat-exchanger rig, including indoor heat exchange unit and aid in back
Wind unit, the side that indoor heat exchange unit is disposed in the interior, auxiliary return air unit are disposed in the interior away from indoor heat exchange unit
Opposite side, and indoor return air is delivered to the return air inlet of indoor heat exchange unit.
Preferably, auxiliary return air unit is located at indoor top, and indoor heat exchange unit is located on indoor side wall, aids in back
The air outlet of wind unit is in the horizontal direction towards the return air inlet of indoor heat exchange unit, and the return air inlet of indoor heat exchange unit is positioned at interior
The upside of heat exchange unit.
Preferably, the outlet air open height of return air unit is aided in be higher than the return air open height of indoor heat exchange unit.
Preferably, aid in return air unit to include case and the accessory fan being arranged in case, inlet air is provided with case
Mouth and air outlet.
Preferably, air outlet is gradually tapered up along the direction away from accessory fan.
Preferably, air inlet is gradually expanded along the direction close to accessory fan.
Preferably, the corresponding case of air inlet is arc.
According to another aspect of the present invention, there is provided a kind of air conditioner, including outdoor unit and indoor heat-exchanger rig, the interior
Heat-exchanger rig is above-mentioned indoor heat-exchanger rig, and indoor heat exchange unit and auxiliary return air unit are in parallel, and are commonly connected to outdoor
Machine.
In accordance with a further aspect of the present invention, there is provided a kind of control method of above-mentioned air conditioner, including：Cup is worked as in detection
Interior temperature；Obtain the difference of design temperature and current indoor temperature；According to the difference to aid in return air unit output wind speed into
Row is adjusted.
Preferably, according to the difference to including the step of aiding in the output wind speed of return air unit to be adjusted：When setting temperature
When the difference of degree and current indoor temperature is greater than or equal to a, the output wind speed of auxiliary return air unit is increased；When design temperature is with working as
When the difference of preceding indoor temperature is more than b and is less than a, reduce the output wind speed of auxiliary return air unit；When design temperature and work as cup
When the difference of interior temperature is less than or equal to b, auxiliary return air unit stops output wind speed.
The indoor heat-exchanger rig of the present invention, including indoor heat exchange unit and auxiliary return air unit, indoor heat exchange unit are set
Side indoors, auxiliary return air unit is disposed in the interior the opposite side away from indoor heat exchange unit, and indoor return air is conveyed
To the return air inlet of indoor heat exchange unit., can due to adding auxiliary return air unit in the side away from indoor heat exchange unit
By aiding in return air unit rationally to adjust indoor air flow, to accelerate indoor return air circulation rate, and make dead zone
Air can also participate in return air flowing, improve the participation and flowing velocity of room air so that indoor temperature can be fast
Velocity modulation section, and can be distributed more uniformly, comfort level higher.
It should be appreciated that the general description and following detailed description of the above are only exemplary and explanatory, not
Can the limitation present invention.
Brief description of the drawings
Attached drawing herein is merged in specification and forms the part of this specification, shows the implementation for meeting the present invention
Example, and for explaining the principle of the present invention together with specification.
Fig. 1 is circulating internal air figure of the prior art；
Fig. 2 is the circulating internal air figure after the indoor heat-exchanger rig using the embodiment of the present invention；
Fig. 3 is the structure chart of the auxiliary return air unit of the indoor heat-exchanger rig of the embodiment of the present invention；
Fig. 4 is the control method flow chart of the air conditioner of the embodiment of the present invention.
Description of reference numerals：1st, indoor heat exchange unit；2nd, return air unit is aided in；3rd, return air inlet；4th, case；5th, wind is aided in
Machine；6th, air inlet；7th, air outlet；8th, temperature sensor.
Embodiment
The following description and drawings fully show specific embodiments of the present invention, to enable those skilled in the art to
Put into practice them.Other embodiments can include structure, logic, it is electric, process and other change.Embodiment
Only represent possible change.Unless explicitly requested, otherwise single components and functionality is optional, and the order operated can be with
Change.The part of some embodiments and feature can be included in or replace part and the feature of other embodiments.This hair
The scope of bright embodiment includes the gamut of claims, and claims is all obtainable equivalent
Thing.Herein, each embodiment individually or can be represented generally with term " invention ", and it is convenient that this is used for the purpose of,
And if in fact disclosing the invention more than one, the scope for being not meant to automatically limit the application is any single invention
Or inventive concept.Herein, relational terms such as first and second and the like be used only for by an entity or operation with
Another entity or operation distinguish, and without requiring or implying, there are any actual relation between these entities or operation
Or order.Moreover, term " comprising ", "comprising" or any other variant thereof is intended to cover non-exclusive inclusion, so that
So that process, method or equipment including a series of elements not only include those key elements, but also including being not explicitly listed
Other element, or further include as this process, method or the intrinsic key element of equipment.In the feelings not limited more
Under condition, the key element that is limited by sentence "including a ...", it is not excluded that in the process including the key element, method or equipment
In also there are other identical element.Each embodiment herein is described by the way of progressive, and each embodiment stresses
Be all difference with other embodiment, between each embodiment identical similar portion mutually referring to.For implementing
For method, product etc. disclosed in example, due to its with embodiment disclosed in method part it is corresponding, so the comparison of description is simple
Single, reference may be made to the description of the method.
As shown in Figure 1, it is air conditioner indoor air flows of the prior art circulation figure, it can be seen from the figure that in room
Under the fan action of interior heat exchange unit, the air near only indoor heat exchange unit can form flow circuit according to a routes, and
The distant room air of the indoor heat exchange unit of distance, is not involved in flow circuit substantially, so, it is indoor to result in participation
The Interior Space tolerance of circulation is less so that and indoor heat transfer effect is undesirable, simultaneously because indoor major part air is not involved in circulating,
Cause the flow rate of this partial air relatively low, temperature is difficult to reach these regions so that indoor Temperature Distribution is very uneven,
Temperature adjustment closer to the part of indoor heat exchange unit is more accurate, and the temperature adjustment further away from the part of indoor heat exchange unit is got over
Unobvious, can seriously affect the usage experience of user.
In order to solve the problems, such as this, inventor studies this, it is proposed that one kind accelerates indoor air circulation speed
And the scheme of indoor air circulation scope is increased, make the indoor Temperature Distribution more uniform with this.
With reference to shown in referring to Fig. 2 and Fig. 3, according to an embodiment of the invention, indoor heat-exchanger rig includes indoor heat exchange unit 1
With auxiliary return air unit 2, the side that indoor heat exchange unit 1 is disposed in the interior, auxiliary return air unit 2 is disposed in the interior away from interior
The opposite side of heat exchange unit 1, and indoor return air is delivered to the return air inlet 3 of indoor heat exchange unit 1.
, can be by aiding in return air due to adding auxiliary return air unit 2 in the side away from indoor heat exchange unit 1
Unit 2 rationally adjusts indoor air flow, accelerates indoor return air circulation rate so that the interior away from interior heat exchange unit 1
Air can also produce flowing under the drive of auxiliary return air unit 2, and be changed at smooth delivery of power to indoor heat exchange unit 1
Heat, makes the air of dead zone can also participate in return air heat exchange cycle, improves the participation and flowing velocity of room air, makes
Indoor temperature can quick regulation, and Temperature Distribution can more uniformly, indoor comfort degree higher.
Preferably, return air unit 2 is aided in be located at indoor top, indoor heat exchange unit 1 is located on indoor side wall, auxiliary
The air outlet 7 of return air unit 2 is in the horizontal direction towards the return air inlet 3 of indoor heat exchange unit 1, the return air inlet 3 of indoor heat exchange unit 1
Positioned at the upside of indoor heat exchange unit 1.The top that auxiliary return air unit 2 is disposed in the interior, can be such that air is flowed from indoor lower part
After moving to auxiliary return air unit 2, flow out along the runner of auxiliary return air unit 2 is horizontal at air outlet 7, can not only change
The flow direction of room air so that air more easily flows to the return air inlet 3 of indoor heat exchange unit 1, and can pass through by
The air outlet 7 of auxiliary return air unit 2 is horizontally disposed with to increase the air supplying distance of auxiliary return air unit 2 so that auxiliary return air unit 2
The air output that less power reaches larger can be consumed, improves the air supply efficiency of auxiliary return air unit 2.
7 height of air outlet of return air unit 2 is aided in be higher than the height of return air inlet 3 of indoor heat exchange unit 1.Due to auxiliary
Return air unit 2 is will to be delivered to top positioned at the air of indoor bottom, is then delivered to from top at indoor heat exchange unit 1, because
The height of air outlet 7 is set above the height of return air inlet 3 by this, and the air exported with auxiliary return air unit 2 is away from outlet air
Mouth 7, this partial air can gradually sink, and when reaching indoor 1 position of heat exchange unit, can successfully be changed from positioned at interior
Enter in indoor heat exchange unit 1 and exchange heat at the return air inlet 3 of the upside of hot cell 1, avoid this partial air due to not
The problem of place of return air inlet 3 height can be reached and cause that heat exchange still cannot be participated in, improve the heat exchange efficiency of air so that air
Heat exchange participates in more efficient.
In the present embodiment, aiding in return air unit 2 includes case 4 and the accessory fan 5 being arranged in case 4, on case 4
It is provided with air inlet 6 and air outlet 7.
Air outlet 7 is gradually tapered up along the direction away from accessory fan 5, can accelerate to aid in the air of the output of return air unit 2
Flow velocity, so as to increase air fed distance so that when the interior space is larger, auxiliary return air unit 2 still can successfully will be far
It is delivered to from the air at indoor heat exchange unit 1 in indoor heat exchange unit 1, completes heat exchange program.
Air inlet 6 is gradually expanded along the direction close to accessory fan 5, can enable air to more easily enter cover
In shell 4, the air transfer efficiency of auxiliary return air unit 2 is improved.
Preferably, the corresponding case 4 of air inlet 6 is arc, can edge after air is entered in case 4 along air inlet 6
The arc for case 4 is advanced to air outlet 7, this part arc can make air favorably accomplish commutation, reduce air flow
To the impact caused by case 4, the commutation loss in air flow process is reduced, it is possible to prevente effectively from producing turbulent flow, is improved
The flow efficiency of air.
The temperature for the air for aiding in return air unit 2 with set temperature sensor 8, can be flowed through for detecting in case 4,
So as to more accurately be regulated and controled to indoor heat exchange unit 1 according to the temperature of this partial air so that indoor temperature energy
It is enough more quickly and accurately to reach design temperature.
According to an embodiment of the invention, air conditioner includes outdoor unit and indoor heat-exchanger rig, which is upper
The indoor heat-exchanger rig stated, indoor heat exchange unit 1 and auxiliary return air unit 2 are in parallel, and are commonly connected to outdoor unit.Indoor heat exchange
Unit 1 and auxiliary return air 2 controller with outdoor unit of unit are attached, and are controlled and run by controller so that auxiliary
The operation of return air unit 2 can be associated with the overall work situation of air conditioner, improves the overall work efficiency of air conditioner.
With reference to shown in Figure 4, according to an embodiment of the invention, the control method of above-mentioned air conditioner includes：Detection is worked as
Preceding indoor temperature；Obtain the difference of design temperature Ts and current indoor temperature Tr；According to the difference to the defeated of auxiliary return air unit 2
Go out wind speed to be adjusted.
Specifically, according to the difference to including the step of aiding in the output wind speed of return air unit 2 to be adjusted：Work as setting
When the difference of temperature Ts and current indoor temperature Tr is greater than or equal to a, the output wind speed of auxiliary return air unit 2 is increased；Work as setting
When the difference of temperature Ts and current indoor temperature Tr is more than b and is less than a, reduce the output wind speed of auxiliary return air unit 2；Work as setting
When the difference of temperature Ts and current indoor temperature Tr is less than or equal to b, auxiliary return air unit 2 stops output wind speed.
In the air conditioner course of work, if design temperature Ts and the difference of current indoor temperature Tr are excessive, illustrate room
Interior heat exchange efficiency is relatively low, it is therefore desirable to accelerates room air flow velocity, improves the heat exchange between room air and indoor heat exchange unit 1
Speed, so as to quickly be adjusted to indoor temperature.When the difference of design temperature Ts and current indoor temperature Tr reach one compared with
During a small range, the output wind speed of auxiliary return air unit 2 can be reduced at this time, so that the heat exchange rate of room air is reduced,
Indoor temperature is slowly adjusted, it is possible to increase the accuracy of temperature adjustment.In design temperature Ts and current indoor temperature
When the difference of Tr meets design temperature allowed band, it can stop aiding in the accessory fan 5 of return air unit 2 to run at this time so that
Indoor air flows are maintained at current state, so as to ensure that indoor temperature is maintained in the range of design temperature.
Wherein a is, for example, 5 DEG C, and b is, for example, 2 DEG C.Certainly, which can also be other suitable numerical value.
From figure 2 it can be seen that the air flowed out at indoor heat exchange unit 1 is flowed through route a to indoor opposite side,
After reaching indoor opposite side, under the action of return air unit 2 is aided in, the air outlet 7 through aiding in return air unit 2 is changed to interior
Hot cell 1 conveys air, and the air part flowed out from air outlet 7 is delivered to the return air inlet 3 of indoor heat exchange unit 1 through flow path b,
Another part is not passed through the return air inlet 3 of indoor heat exchange unit 1 through the obliquely downward conveying of flow path c elder generations, aids in the defeated of return air unit 2
Go out that air velocity is faster, then the air of distribution to flow path b is more, and air heat-exchange is more abundant, and heat transfer effect is better.
It should be appreciated that the invention is not limited in the flow and structure that are described above and are shown in the drawings,
And various modifications and changes may be made without departing from the scope thereof.The scope of the present invention is only limited by appended claim
System.
Claims (10)
1. a kind of interior heat-exchanger rig, it is characterised in that including indoor heat exchange unit (1) and auxiliary return air unit (2), the room
The side that interior heat exchange unit (1) is disposed in the interior, the auxiliary return air unit (2) are disposed in the interior away from the indoor heat exchange list
The opposite side of first (1), and indoor return air is delivered to the return air inlet (3) of the indoor heat exchange unit (1).
2. interior heat-exchanger rig according to claim 1, it is characterised in that the auxiliary return air unit (2) is positioned at interior
Top, the interior heat exchange unit (1) be located on indoor side wall, and the air outlet (7) for aiding in return air unit (2) is along water
Square it is located at institute to the return air inlet (3) towards the indoor heat exchange unit (1), the return air inlet (3) of the interior heat exchange unit (1)
State the upside of indoor heat exchange unit (1).
3. interior heat-exchanger rig according to claim 2, it is characterised in that the air outlet of the auxiliary return air unit (2)
(7) highly higher than return air inlet (3) height of the indoor heat exchange unit (1).
4. interior heat-exchanger rig according to claim 2, it is characterised in that the auxiliary return air unit (2) includes case
(4) and the accessory fan (5) that is arranged in the case (4) air inlet (6) and air outlet, are provided with the case (4)
(7)。
5. interior heat-exchanger rig according to claim 4, it is characterised in that the air outlet (7) is along away from the auxiliary
The direction of wind turbine (5) gradually tapers up.
6. interior heat-exchanger rig according to claim 4, it is characterised in that the air inlet (6) is along close to the auxiliary
Gradually expand in the direction of wind turbine (5).
7. interior heat-exchanger rig according to claim 6, it is characterised in that the corresponding case of the air inlet (6)
(4) it is arc.
8. a kind of air conditioner, including outdoor unit and indoor heat-exchanger rig, it is characterised in that the interior heat-exchanger rig will for right
The indoor heat-exchanger rig any one of 1 to 7 is sought, the interior heat exchange unit (1) and the auxiliary return air unit (2) are simultaneously
Connection, and it is commonly connected to the outdoor unit.
A kind of 9. control method of air conditioner as claimed in claim 8, it is characterised in that including：
Detect current indoor temperature；
Obtain the difference of design temperature and current indoor temperature；
The output wind speed of auxiliary return air unit (2) is adjusted according to the difference.
10. the control method of air conditioner according to claim 9, it is characterised in that it is described according to the difference to aiding in back
The step of output wind speed of wind unit (2) is adjusted includes：
When the difference of design temperature and current indoor temperature is greater than or equal to a, the output wind of auxiliary return air unit (2) is increased
Speed；
When the difference of design temperature and current indoor temperature is more than b and is less than a, reduce the output wind of auxiliary return air unit (2)
Speed；
When the difference of design temperature and current indoor temperature is less than or equal to b, auxiliary return air unit (2) stops output wind speed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610951035.2A CN107990407B (en) | 2016-10-26 | 2016-10-26 | Control method of air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610951035.2A CN107990407B (en) | 2016-10-26 | 2016-10-26 | Control method of air conditioner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107990407A true CN107990407A (en) | 2018-05-04 |
| CN107990407B CN107990407B (en) | 2020-08-25 |
Family
ID=62029331
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610951035.2A Active CN107990407B (en) | 2016-10-26 | 2016-10-26 | Control method of air conditioner |
Country Status (1)
| Country | Link |
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| CN (1) | CN107990407B (en) |
Citations (8)
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| CN2479417Y (en) * | 2001-04-29 | 2002-02-27 | 坤慧股份有限公司 | Air-returning box of air conditioner |
| JP2004169951A (en) * | 2002-11-18 | 2004-06-17 | Nec Robotics Eng Ltd | Pass box for cleaning article |
| CN2628925Y (en) * | 2003-04-27 | 2004-07-28 | 孙东行 | Indoor ventilator |
| CN1521463A (en) * | 2003-02-12 | 2004-08-18 | ���ǵ�����ʽ���� | Air circulating device |
| KR20060131110A (en) * | 2005-06-15 | 2006-12-20 | 엘지전자 주식회사 | Air conditioning system, and air circulating apparatus constructing the same |
| CN1959252A (en) * | 2005-11-03 | 2007-05-09 | 乐金电子(天津)电器有限公司 | Air conditioning system, and air cycle machine of constituting air conditioning system |
| CN104748237A (en) * | 2015-03-31 | 2015-07-01 | 广东美的暖通设备有限公司 | Air-conditioner control system and method |
| CN105135588A (en) * | 2015-09-23 | 2015-12-09 | 广东美的制冷设备有限公司 | Ventilation equipment and control method thereof |
-
2016
- 2016-10-26 CN CN201610951035.2A patent/CN107990407B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2479417Y (en) * | 2001-04-29 | 2002-02-27 | 坤慧股份有限公司 | Air-returning box of air conditioner |
| JP2004169951A (en) * | 2002-11-18 | 2004-06-17 | Nec Robotics Eng Ltd | Pass box for cleaning article |
| CN1521463A (en) * | 2003-02-12 | 2004-08-18 | ���ǵ�����ʽ���� | Air circulating device |
| CN2628925Y (en) * | 2003-04-27 | 2004-07-28 | 孙东行 | Indoor ventilator |
| KR20060131110A (en) * | 2005-06-15 | 2006-12-20 | 엘지전자 주식회사 | Air conditioning system, and air circulating apparatus constructing the same |
| CN1959252A (en) * | 2005-11-03 | 2007-05-09 | 乐金电子(天津)电器有限公司 | Air conditioning system, and air cycle machine of constituting air conditioning system |
| CN104748237A (en) * | 2015-03-31 | 2015-07-01 | 广东美的暖通设备有限公司 | Air-conditioner control system and method |
| CN105135588A (en) * | 2015-09-23 | 2015-12-09 | 广东美的制冷设备有限公司 | Ventilation equipment and control method thereof |
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| Publication number | Publication date |
|---|---|
| CN107990407B (en) | 2020-08-25 |
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Effective date of registration: 20201103 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. |
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