CN111442457A - Positive pressure intervention device and intervention method for passive building fresh air all-in-one machine - Google Patents
Positive pressure intervention device and intervention method for passive building fresh air all-in-one machine Download PDFInfo
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- CN111442457A CN111442457A CN202010422045.3A CN202010422045A CN111442457A CN 111442457 A CN111442457 A CN 111442457A CN 202010422045 A CN202010422045 A CN 202010422045A CN 111442457 A CN111442457 A CN 111442457A
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- 238000000034 method Methods 0.000 title claims abstract description 11
- 230000000694 effects Effects 0.000 claims abstract description 8
- 239000000779 smoke Substances 0.000 claims abstract description 6
- 230000008020 evaporation Effects 0.000 claims description 7
- 238000001704 evaporation Methods 0.000 claims description 7
- 230000008676 import Effects 0.000 abstract description 12
- 238000011084 recovery Methods 0.000 abstract description 5
- 239000006096 absorbing agent Substances 0.000 description 10
- 239000006233 lamp black Substances 0.000 description 10
- 230000015556 catabolic process Effects 0.000 description 2
- 238000006731 degradation reaction Methods 0.000 description 2
- 238000004321 preservation Methods 0.000 description 2
- 230000003044 adaptive effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F7/00—Ventilation
- F24F7/04—Ventilation with ducting systems, e.g. by double walls; with natural circulation
- F24F7/06—Ventilation with ducting systems, e.g. by double walls; with natural circulation with forced air circulation, e.g. by fan positioning of a ventilator in or against a conduit
- F24F7/08—Ventilation with ducting systems, e.g. by double walls; with natural circulation with forced air circulation, e.g. by fan positioning of a ventilator in or against a conduit with separate ducts for supplied and exhausted air with provisions for reversal of the input and output systems
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- F24C15/00—Details
- F24C15/20—Removing cooking fumes
- F24C15/2021—Arrangement or mounting of control or safety systems
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
- F24F11/54—Control or safety arrangements characterised by user interfaces or communication using one central controller connected to several sub-controllers
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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
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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
- F24F11/00—Control or safety arrangements
- F24F11/89—Arrangement or mounting of control or safety devices
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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
- 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
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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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
-
- 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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- 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]
- Y02B30/90—Passive houses; Double facade technology
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Human Computer Interaction (AREA)
- Ventilation (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The utility model provides a passive form building new trend all-in-one malleation intervenes device, includes the box and locates the electronic blast gate of new trend, the electronic blast gate of airing exhaust, the electronic blast gate of bypass, new trend fan, the fan of airing exhaust, circulating fan and control system in the box, be equipped with new trend import, the import of airing exhaust, circulating fan import, export of airing exhaust and supply outlet on the box, new trend import and export of airing exhaust and outdoor intercommunication, import, circulating fan import and supply outlet and indoor intercommunication of airing exhaust, the electronic blast gate of new trend, the electronic blast gate of airing exhaust, the electronic blast gate of bypass, new trend fan, the fan of airing exhaust and circulating fan all are controlled by control system, the side of box is equipped with the control panel who is connected with control system. According to the invention, positive pressure automatic intervention of the passive building fresh air all-in-one machine is realized through the device and the method, indoor air pressure balance is realized, the exhaust/smoke exhaust effect of a washroom/kitchen is improved, efficient total heat recovery is ensured, and the indoor air quality and comfort are improved.
Description
Technical Field
The invention relates to the field of fresh air systems, in particular to a positive pressure intervention device and an intervention method for a passive building fresh air all-in-one machine.
Background
The passive ultra-low energy consumption building is a building which is adaptive to climatic characteristics and natural conditions, adopts a fresh air heat recovery technology through an enclosure structure with higher heat insulation performance and air tightness performance, and provides a comfortable indoor environment by utilizing renewable energy sources. The good building enclosure and the air tightness bring excellent heat preservation effect, the whole building is like a large-scale vacuum bottle just like a human body wears down jackets in cold winter, and the heat loss is reduced. Under such heat preservation condition, high performance heat recovery new trend system is indispensable, and the amount of wind balance of new trend and exhaust air can realize the heat exchange recovery of highest efficiency. When the fresh air environment-controlled integrated machine system normally works in an indoor air pressure balance state, if an exhaust fan of a washroom is started, the indoor air pressure balance state can be damaged, the fresh air volume is relatively insufficient due to the addition of extra exhaust air volume, and a negative pressure state occurs indoors, so that the problem of indoor air degradation is caused, and the exhaust effect of the washroom is greatly reduced due to the insufficient fresh air volume, and the influence is more prominent when a plurality of washrooms are built; when the kitchen lampblack absorber was opened, produced higher air output of airing exhaust, indoor negative pressure problem was more outstanding, and if the smoke exhausting effect of not carrying out new trend air supplement lampblack absorber can be very poor, consequently also produced bigger influence.
Disclosure of Invention
The invention provides a positive pressure intervention device and an intervention method for a passive building fresh air all-in-one machine, and mainly aims to solve the problem that the indoor air pressure balance is damaged due to the fact that an indoor negative pressure state occurs when an exhaust fan and a range hood of an existing passive building are started.
In order to solve the technical problems, the invention adopts the following technical scheme:
the utility model provides a passive form building new trend all-in-one malleation intervenes device, includes the box and locates the electronic blast gate of new trend, the electronic blast gate of airing exhaust, the electronic blast gate of bypass, new trend fan, the fan of airing exhaust, circulating fan and control system in the box, be equipped with new trend import, the import of airing exhaust, circulating fan import, export of airing exhaust and supply outlet on the box, new trend import and export of airing exhaust and outdoor intercommunication, import, circulating fan import and supply outlet and indoor intercommunication of airing exhaust, the electronic blast gate of new trend, the electronic blast gate of airing exhaust, the electronic blast gate of bypass, new trend fan, the fan of airing exhaust and circulating fan all are controlled by control system, the side of box is equipped with the control panel who is connected with control system.
Furthermore, the fresh air inlet and the air exhaust outlet are located on the left side face of the box body, the air exhaust outlet is located above the fresh air inlet, the air exhaust inlet and the circulating air inlet are located on the bottom face of the box body, the air supply outlet is located on the right side face of the box body, the fresh air electric air valve is located at the fresh air inlet, the air exhaust fan is located at the air exhaust outlet, the air exhaust electric air valve is located at the air exhaust inlet, the bypass electric air valve is communicated with the circulating air inlet, the fresh air electric air valve, the bypass electric air valve and the air exhaust electric air valve are sequentially arranged from left to right, the circulating fan is located above the circulating air inlet, the fresh air fan is located above the circulating fan, and the fresh air fan and the circulating fan are located in the middle of.
Furthermore, a heat exchange core is arranged below the air exhaust fan, an evaporation box is arranged on the right sides of the fresh air fan and the circulating fan, and the heat exchange core and the evaporation box are connected with a control system.
Furthermore, the control system comprises a central processing module, an exhaust fan identification module and a range hood identification module which are connected with the central processing module, and the fresh air electric air valve, the exhaust electric air valve, the bypass electric air valve, the fresh air fan, the exhaust fan, the circulating fan and the control panel are connected with the central processing module.
A positive pressure intervention method of a passive building fresh air all-in-one machine comprises the following steps:
(1) under a normal working state, the fresh air electric air valve is opened, the exhaust electric air valve is opened, the bypass electric air valve is closed, and the fresh air fan and the exhaust fan work and operate;
(2) when the exhaust fan in the building is started, the exhaust fan identification module identifies the quantity information of the started exhaust fans, the central processing module controls the exhaust fan to stop working and the exhaust electric air valve to be closed, the control panel sets the fresh air quantity of the fresh air fan as the total exhaust air quantity of the started exhaust fan, the target that the indoor air intake quantity is equal to the exhaust air quantity is achieved, and the indoor pressure is ensured to be in a balanced state;
(3) when the lampblack absorber is opened in the building, information that the lampblack absorber was opened is discerned to lampblack absorber identification module, central processing module control air exhaust fan stop work, the electric air valve of airing exhaust is closed, the electric air valve of simultaneous control bypass is opened, circulating fan work, set up the new trend amount of wind to the maximum condition of new trend fan at control panel, set up circulating fan's the amount of wind to the target state simultaneously, increase the air inlet amount of wind, it is unanimous with the volume of airing exhaust of lampblack absorber to ensure to send into indoor amount of wind, make indoor atmospheric pressure automatic be in balanced state, ensure smoke exhaust effect and indoor air quality normal.
Further, the number of the opened exhaust fans in the step (2) is at least one.
As can be seen from the above description of the present invention, compared with the prior art, the present invention has the following advantages: when a washroom exhaust fan and/or a kitchen range hood in a building are/is started, the control system automatically identifies the starting and the quantity of the washroom exhaust fan and/or the kitchen range hood, the fresh air all-in-one machine system works to a positive pressure intervention operation mode according to a preset value, the indoor balance state of the building is dynamically maintained, the generation of indoor negative pressure is avoided, and the indoor air quality degradation caused by the negative pressure is avoided. According to the invention, positive pressure automatic intervention of the passive building fresh air all-in-one machine is realized through the device and the method, indoor air pressure balance is realized, the exhaust/smoke exhaust effect of a washroom/kitchen is improved, efficient total heat recovery is ensured, and the indoor air quality and comfort are improved.
Drawings
Fig. 1 is an internal structural view in a normal operating state of the present invention.
Fig. 2 is an internal structure view of the present invention in an operating state when the exhaust fan is turned on.
Fig. 3 is an internal structure view of the range hood in a working state when the range hood is opened.
Fig. 4 is a block diagram of the system of the present invention.
Detailed Description
Referring to fig. 1 to 4, a positive pressure intervention device of a passive building fresh air all-in-one machine comprises a box body 1, a fresh air electric air valve 2, an exhaust electric air valve 3, a bypass electric air valve 4, a fresh air fan 5, an exhaust fan 6, a circulating fan 7 and a control system 8, wherein the fresh air electric air valve 2, the exhaust electric air valve 3, the bypass electric air valve 4, the fresh air fan 5, the exhaust fan 6, the circulating fan 7. The fresh air inlet 9, the exhaust inlet 10, the circulating air inlet 11, the exhaust outlet 12 and the air supply outlet 13 are arranged on the box body 1, the fresh air inlet 9 and the exhaust outlet 12 are communicated with the outside, and the exhaust inlet 10, the circulating air inlet 11 and the air supply outlet 13 are communicated with the inside of the room. The fresh air electric air valve 2, the exhaust electric air valve 3, the bypass electric air valve 4, the fresh air fan 5, the exhaust fan 6 and the circulating fan 7 are controlled by a control system 8, and a control panel 14 connected with the control system 8 is arranged on the side face of the box body 1.
Referring to fig. 1 to 3, the fresh air inlet 9 and the exhaust air outlet 12 are located on the left side of the box body, the exhaust air outlet 12 is located above the fresh air inlet 9, the exhaust air inlet 10 and the circulating air inlet 11 are located on the bottom of the box body, and the air supply outlet 13 is located on the right side of the box body 1. The fresh air electric air valve 2 is positioned at a fresh air inlet 9, the exhaust fan 6 is positioned at an exhaust outlet 12, the exhaust electric air valve 3 is arranged at an exhaust inlet 10, and the bypass electric air valve 4 is communicated with a circulating air inlet 11. The fresh air electric air valve 2, the bypass electric air valve 4 and the exhaust electric air valve 3 are sequentially arranged from left to right, the circulating fan 7 is positioned above the circulating air inlet 11, the fresh air fan 5 is positioned above the circulating fan 7, and the fresh air fan 5 and the circulating fan 7 are positioned in the middle of the box body.
Referring to fig. 1 to 4, a heat exchange core 15 is arranged below the exhaust fan 6, an evaporation box 16 is arranged on the right side of the fresh air fan 5 and the circulating fan 7, and the heat exchange core 15 and the evaporation box 16 are connected with a control system 8. The control system 8 comprises a central processing module 81, an exhaust fan identification module 82 and a range hood identification module 83 which are connected with the central processing module 81, and the fresh air electric air valve 2, the exhaust electric air valve 3, the bypass electric air valve 4, the fresh air fan 5, the exhaust fan 6, the circulating fan 7, the control panel 14, the heat exchange core 15 and the evaporation box 16 are all connected with the central processing module 81.
Referring to fig. 1 to 4, a positive pressure intervention method of a passive building fresh air all-in-one machine includes the following steps:
(1) under the normal operating condition, fresh air electric air valve 2 is opened, air exhaust electric air valve 3 is opened, bypass electric air valve 4 is closed, and fresh air fan 5 and air exhaust fan 6 operate.
(2) When the exhaust fans in the building are opened, the exhaust fan identification module 82 identifies the information of the number of the opened exhaust fans, the central processing module 81 controls the exhaust fans 6 to stop working and the exhaust electric air valve 3 to be closed, the control panel 14 sets the fresh air volume of the fresh air fan 5 as the total exhaust air volume of the opened exhaust fans, the target that the indoor air volume is equal to the exhaust air volume is reached, the indoor pressure is ensured to be in a balanced state, and the number of the opened exhaust fans is at least one.
(3) When the lampblack absorber is opened in the building, information that the lampblack absorber was opened is discerned to lampblack absorber recognition module 83, central processing module 81 control air exhaust fan 6 stop work, air exhaust electric air valve 3 is closed, control bypass electric air valve 4 is opened simultaneously, circulating fan 7 works, set up the new trend amount of wind to the maximum condition of new trend fan 5 at control panel 14, set up circulating fan 7's the amount of wind to the target condition simultaneously, increase the air inlet amount of wind, ensure to send into indoor amount of wind and the volume of airing exhaust of lampblack absorber unanimously, make indoor atmospheric pressure automatic be in balanced state, ensure smoke exhaust effect and indoor air quality normal.
The above description is only an embodiment of the present invention, but the design concept of the present invention is not limited thereto, and any insubstantial modifications made by using the design concept should fall within the scope of infringing the present invention.
Claims (6)
1. The utility model provides a device is intervened to passive form new trend all-in-one malleation which characterized in that: the novel air exhaust device comprises a box body, a fresh air electric air valve, an air exhaust electric air valve, a bypass electric air valve, a fresh air fan, an air exhaust fan, a circulating fan and a control system, wherein the fresh air electric air valve, the air exhaust electric air valve, the bypass electric air valve, the fresh air fan, the air exhaust fan, the circulating fan and the control system are arranged in the box body, a fresh air inlet, an air exhaust inlet, a circulating air inlet, an air exhaust outlet and an air supply outlet are formed in the box body, the fresh air inlet and the air exhaust outlet are communicated with the outside, the air exhaust inlet, the circulating air inlet and the air supply outlet are communicated with the inside of a room, the fresh air electric air valve, the.
2. The passive positive pressure intervention device of the building fresh air all-in-one machine as claimed in claim 1, wherein: the fresh air inlet and the air exhaust outlet are located on the left side face of the box body, the air exhaust outlet is located above the fresh air inlet, the air exhaust inlet and the circulating air inlet are located on the bottom face of the box body, the air supply outlet is located on the right side face of the box body, the fresh air electric air valve is located at the fresh air inlet, the air exhaust fan is located at the air exhaust outlet, the air exhaust electric air valve is located at the air exhaust inlet, the bypass electric air valve is communicated with the circulating air inlet, the fresh air electric air valve, the bypass electric air valve and the air exhaust electric air valve are sequentially arranged from left to right, the circulating fan is located above the circulating air inlet, the fresh air fan is located above the circulating fan, and the fresh air fan and the circulating fan are located in the.
3. The passive positive pressure intervention device of the building fresh air all-in-one machine as claimed in claim 2, wherein: the air exhaust fan is provided with a heat exchange core below, the fresh air fan and the circulating fan are provided with evaporation boxes on the right sides, and the heat exchange core and the evaporation boxes are connected with a control system.
4. The passive positive pressure intervention device of the building fresh air all-in-one machine as claimed in claim 1, wherein: the control system comprises a central processing module, an exhaust fan identification module and a range hood identification module, wherein the exhaust fan identification module and the range hood identification module are connected with the central processing module, and the fresh air electric air valve, the exhaust electric air valve, the bypass electric air valve, the fresh air fan, the exhaust fan, the circulating fan and the control panel are connected with the central processing module.
5. The positive pressure intervention method of the passive building fresh air all-in-one machine as claimed in any one of claims 1 to 4, wherein: the method comprises the following steps:
(1) under a normal working state, the fresh air electric air valve is opened, the exhaust electric air valve is opened, the bypass electric air valve is closed, and the fresh air fan and the exhaust fan work and operate;
(2) when the exhaust fan in the building is started, the exhaust fan identification module identifies the quantity information of the started exhaust fans, the central processing module controls the exhaust fan to stop working and the exhaust electric air valve to be closed, the control panel sets the fresh air quantity of the fresh air fan as the total exhaust air quantity of the started exhaust fan, the target that the indoor air intake quantity is equal to the exhaust air quantity is achieved, and the indoor pressure is ensured to be in a balanced state;
(3) when the range hood in the building is started, the range hood identification module identifies the information of starting the range hood,
the central processing module controls the exhaust fan to stop working and the exhaust electric air valve to be closed, and simultaneously controls the bypass electric air valve to be opened and the circulating fan to work, the control panel sets the fresh air quantity of the fresh air fan to the maximum state, and simultaneously sets the air quantity of the circulating fan to be a target state, so that the air inlet quantity is increased, the air quantity fed into the room is ensured to be consistent with the exhaust quantity of the range hood, the indoor air pressure is automatically in a balanced state, and the smoke exhaust effect and the indoor air quality are ensured to be normal.
6. The positive pressure intervention method of the passive building fresh air all-in-one machine as claimed in claim 5, wherein: and (3) the number of the opened exhaust fans in the step (2) is at least one.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010422045.3A CN111442457B (en) | 2020-05-18 | 2020-05-18 | Passive building fresh air all-in-one positive pressure intervention device and intervention method thereof |
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| CN202010422045.3A CN111442457B (en) | 2020-05-18 | 2020-05-18 | Passive building fresh air all-in-one positive pressure intervention device and intervention method thereof |
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| CN111442457B CN111442457B (en) | 2023-12-29 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112556060A (en) * | 2020-12-14 | 2021-03-26 | 珠海格力电器股份有限公司 | New fan |
| CN112944540A (en) * | 2021-03-31 | 2021-06-11 | 中山市万得福电子热控科技有限公司 | Indoor air conditioning system, indoor air conditioning method thereof, and readable storage medium |
| CN114508811A (en) * | 2022-02-15 | 2022-05-17 | 厦门狄耐克环境智能科技有限公司 | Fresh air environment control all-in-one machine for passive building and control system and method |
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