CN111853949B - Air conditioner indoor unit and control method for fresh air function of air conditioner - Google Patents
Air conditioner indoor unit and control method for fresh air function of air conditioner Download PDFInfo
- Publication number
- CN111853949B CN111853949B CN202010811244.3A CN202010811244A CN111853949B CN 111853949 B CN111853949 B CN 111853949B CN 202010811244 A CN202010811244 A CN 202010811244A CN 111853949 B CN111853949 B CN 111853949B
- Authority
- CN
- China
- Prior art keywords
- filter screen
- fresh air
- air
- dust removing
- control method
- 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
Links
- 238000000034 method Methods 0.000 title claims abstract description 40
- 239000000428 dust Substances 0.000 claims abstract description 114
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 14
- 229910002092 carbon dioxide Inorganic materials 0.000 claims description 7
- 239000001569 carbon dioxide Substances 0.000 claims description 7
- 238000010438 heat treatment Methods 0.000 claims description 4
- 239000003507 refrigerant Substances 0.000 description 10
- 238000005057 refrigeration Methods 0.000 description 5
- 238000004378 air conditioning Methods 0.000 description 4
- 238000001914 filtration Methods 0.000 description 3
- 239000007791 liquid phase Substances 0.000 description 3
- 238000009833 condensation Methods 0.000 description 2
- 230000005494 condensation Effects 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000002860 competitive effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000001143 conditioned effect Effects 0.000 description 1
- 230000003670 easy-to-clean Effects 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- 238000011045 prefiltration Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- 230000003313 weakening effect Effects 0.000 description 1
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
- F24F1/0007—Indoor units, e.g. fan coil units
- F24F1/0071—Indoor units, e.g. fan coil units with means for purifying supplied air
- F24F1/0073—Indoor units, e.g. fan coil units with means for purifying supplied air characterised by the mounting or arrangement of filters
-
- 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
- F24F1/0071—Indoor units, e.g. fan coil units with means for purifying supplied air
- F24F1/0076—Indoor units, e.g. fan coil units with means for purifying supplied air by electric means, e.g. ionisers or electrostatic separators
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
- F24F11/54—Control or safety arrangements characterised by user interfaces or communication using one central controller connected to several sub-controllers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
- F24F11/74—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
- F24F11/77—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity by controlling the speed of ventilators
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/28—Arrangement or mounting of filters
-
- 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
- F24F2110/64—Airborne particle content
-
- 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
- F24F2110/65—Concentration of specific substances or contaminants
- F24F2110/70—Carbon dioxide
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Human Computer Interaction (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Fluid Mechanics (AREA)
- Air Filters, Heat-Exchange Apparatuses, And Housings Of Air-Conditioning Units (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention provides an air conditioner indoor unit and a control method of fresh air function of an air conditioner, comprising a shell; a heat exchange module; a fresh air module; the fresh air module comprises a fresh air pipe which is used for being communicated with the outside to introduce fresh air; the volute is internally provided with an air duct which is communicated with the fresh air pipe, and a filter screen accommodating cavity is arranged between an air inlet of the volute and the fresh air pipe; the dust removing filter screen assembly is arranged in the filter screen accommodating cavity and is matched and connected with the filter screen accommodating cavity in a sliding manner; and the driving assembly is matched with the dust removing filter screen assembly and is used for driving the dust removing filter screen assembly to slide in the filter screen accommodating cavity so as to enable the dust removing filter screen assembly to be completely sealed or completely opened or partially opened to be communicated with the air channel of the fresh air pipe. Compared with the existing dust removing filter screen, the novel dust removing filter screen can greatly improve the fresh air quantity and improve the user experience under the condition of the same noise; on the premise of the same fresh air quantity, noise during fresh air operation can be reduced, and user experience is improved.
Description
Technical Field
The invention belongs to the technical field of air conditioning, and particularly relates to an air conditioner indoor unit and a control method of fresh air function of an air conditioner.
Background
At present, the home appliance industry is in a competitive situation, each large bid product is innovated in the aspects of functions, appearance and the like, and the product details are important factors influencing the purchasing power of consumers.
On the one hand, the existing air conditioner mostly uses HEPA dust removal filter screens when filtering air, the filter materials are multi-layer non-woven fabrics, and wind resistance is large, so that noise is high, air inlet quantity is small, and the filter screens are not easy to clean after being blocked when running fresh air function; on the other hand, when the fresh air intake air sucked from the outdoor is good in quality, the fresh air intake air does not need to be efficiently filtered, but the HEPA dust removal filter screen arranged in the existing air conditioner cannot effectively solve the problem.
In view of this, the present invention has been proposed.
Disclosure of Invention
The present invention aims to solve at least one of the technical problems in the related art to some extent. For this purpose,
the first aim of the invention is to provide an air conditioner indoor unit which is used for reducing wind resistance, reducing noise, improving fresh air intake and facilitating cleaning of users.
The second aim of the invention is to provide a control method for the fresh air function of the air conditioner.
In order to achieve the above object, an embodiment of an aspect of the present invention provides an indoor unit of an air conditioner, including: a housing; the heat exchange module is used for refrigerating and heating; the fresh air module is used for introducing fresh air from outdoors; the fresh air module comprises: the fresh air pipe is used for being communicated with the outside to introduce fresh air; the volute is internally provided with an air duct which is communicated with the fresh air pipe, and a filter screen accommodating cavity is arranged between an air inlet of the volute and the fresh air pipe; the dust removing filter screen assembly is arranged in the filter screen accommodating cavity and is matched and connected with the filter screen accommodating cavity in a sliding manner; and the driving assembly is matched with the dust removing filter screen assembly and is used for driving the dust removing filter screen assembly to slide in the filter screen accommodating cavity, so that the dust removing filter screen assembly is completely sealed or completely opened or partially opened to be communicated with the air channel of the new air pipe, and the fresh air inlet quantity is increased.
According to one embodiment of the invention, a chute is arranged on the filter screen accommodating cavity, and the dust removing filter screen is scratched into the filter screen accommodating cavity along the chute so as to facilitate the dust removing filter screen to be detached or installed along the chute in a sliding manner.
According to one embodiment of the invention, a fresh air motor and a fan are arranged in the air duct, and an output shaft of the fresh air motor is connected with the fan and is used for driving the fan to rotate so as to introduce fresh air into a room.
According to one embodiment of the invention, the driving assembly comprises a stepping motor and a rotating wheel, wherein an output shaft of the stepping motor is connected with the rotating wheel and used for driving the rotating wheel to rotate; the rotating wheel is matched with the dust removing filter screen component, and the stepping motor rotates to indirectly drive the dust removing filter screen component to slide.
According to one embodiment of the invention, a fixing seat is arranged on the outer side of the driving assembly, a mounting seat is further arranged on the upper side of the filter screen accommodating cavity, and the fixing seat is fixedly connected with the mounting seat to fix the driving assembly on the filter screen accommodating cavity.
According to one embodiment of the invention, a through hole is formed in the upper side of the filter screen accommodating cavity, and the rotating wheel is matched with the dust removing filter screen assembly through the through hole, so that the dust removing filter screen assembly is driven to slide in the filter screen accommodating cavity.
According to one embodiment of the invention, the dust removing filter screen assembly comprises a filter screen frame and a filter screen, a plurality of protrusions are arranged above the filter screen frame, and the rotating wheel is matched with the protrusions so as to drive the dust removing filter screen assembly to slide in the filter screen accommodating cavity.
According to one embodiment of the invention, the bottom side of the filter screen frame is provided with the roller fixing frames, and the roller fixing frames are movably connected with rollers, so that the dust removal filter screen component can slide in the sliding groove more smoothly.
According to one embodiment of the invention, the new air pipe is provided with a primary filter screen, and the mesh aperture of the primary filter screen is larger than that of the dust removal filter screen.
According to one embodiment of the invention, the primary filter screen is detachably connected with the fresh air pipe.
According to one embodiment of the invention, the primary filter screen is arranged on the indoor side of the fresh air pipe.
In order to achieve the above objective, a second embodiment of the present invention provides a method for controlling a fresh air function of an air conditioner, which is applicable to the above indoor unit of the air conditioner, and the method includes: when the fresh air function is started, the quality value of fresh air inlet air is detected, and the position state of the dust removing filter screen component relative to the filter screen accommodating cavity is controlled according to the detected quality value of fresh air inlet air.
According to one embodiment of the invention, the fresh air function in the method is an automatic fresh air function, and when the automatic fresh air function is started, the indoor carbon dioxide concentration is detected, and the on-off and the rotating speed of the fresh air motor are automatically controlled according to the indoor carbon dioxide concentration.
According to one embodiment of the invention, after the fresh air function is closed, the dust removing filter screen assembly is controlled to slide to a position state of being completely sealed with the air duct.
According to one embodiment of the invention, when the quality value of the fresh air intake air meets a first preset condition, the controller electrifies the driving assembly, so that the dust removing filter screen assembly is controlled to slide to a position state of being completely sealed with the air duct; when the quality value of the fresh air intake air meets a second preset condition, the controller electrifies the driving assembly, so that the dust removing filter screen assembly is controlled to slide to a position state of being partially or completely opened with the air duct.
According to one embodiment of the invention, when the quality value of the fresh air intake air meets a first preset condition, the minimum rotation speed of the fresh air motor is limited to R1; when the quality value of the fresh air intake air meets a second preset condition, the lowest rotating speed of the fresh air motor is limited to be R2.
According to one embodiment of the invention, the quality value of the fresh air intake air is determined by detecting the concentration of PM2.5 in the fresh air intake air.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic diagram of an air conditioner indoor unit according to an embodiment of the present invention;
FIG. 2 is a schematic view of a fresh air module structure according to an embodiment of the present invention;
FIG. 3 is a schematic view of a fresh air fan and fan installation according to an embodiment of the present invention;
fig. 4 is a schematic view of a structure of a filter screen accommodating cavity according to an embodiment of the present invention;
FIG. 5 is an enlarged view of a portion of a screen receiving chamber according to an embodiment of the present invention;
FIG. 6 is a schematic diagram of a driving assembly according to an embodiment of the present invention;
FIG. 7 is a schematic view of a dust screen assembly according to an embodiment of the present invention;
FIG. 8 is an enlarged view of a roller mounting provided in accordance with an embodiment of the present invention;
FIG. 9 is a schematic view of a dust screen assembly according to an embodiment of the present invention in a first position;
fig. 10 is a schematic view of a dust removing filter assembly in a second position according to an embodiment of the present invention;
FIG. 11 is a schematic view of a primary filter screen installation provided according to an embodiment of the present invention;
fig. 12 is a flowchart of a method for controlling a fresh air function of an air conditioner according to an embodiment of the present invention;
fig. 13 is a second schematic flow chart of a control method for fresh air function of an air conditioner according to an embodiment of the present invention;
fig. 14 is a flowchart of a control method of an air conditioner fresh air function according to an embodiment of the present invention.
In the above figures: 1. a heat exchange module; 2. a fresh air module; 21. a new air pipe; 22. a dust removal filter screen assembly; 221. a screen frame; 222. a filter screen; 2221. a protrusion; 2222. a roller fixing frame; 223. a roller; 23. a volute; 231. an air duct; 2311. a filter screen accommodating chamber; 2312. a chute; 2313. a mounting base; 2314. a via hole; 232. a fan; 24. a drive assembly; 241. a fixing seat; 242. a stepping motor; 243. a rotating wheel; 3. a fresh air motor; 4. and (5) a primary filter screen.
Detailed Description
The present invention will be specifically described below by way of exemplary embodiments. It is to be understood that elements, structures, and features of one embodiment may be beneficially incorporated in other embodiments without further recitation.
In the description of the present invention, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the present invention and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.
The terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
The air conditioner in this application performs a refrigeration cycle of the air conditioner by using a compressor, a condenser, an expansion valve, and an evaporator. The refrigeration cycle includes a series of processes involving compression, condensation, expansion, and evaporation, and supplies a refrigerant to the air that has been conditioned and heat exchanged.
The compressor compresses a refrigerant gas in a high-temperature and high-pressure state and discharges the compressed refrigerant gas. The discharged refrigerant gas flows into the condenser. The condenser condenses the compressed refrigerant into a liquid phase, and heat is released to the surrounding environment through the condensation process.
The expansion valve expands the liquid-phase refrigerant in a high-temperature and high-pressure state condensed in the condenser into a low-pressure liquid-phase refrigerant. The evaporator evaporates the refrigerant expanded in the expansion valve and returns the refrigerant gas in a low-temperature and low-pressure state to the compressor. The evaporator may achieve a cooling effect by exchanging heat with a material to be cooled using latent heat of evaporation of a refrigerant. The air conditioner may adjust the temperature of the indoor space throughout the cycle.
The air conditioner includes an outdoor unit, which refers to a portion of a refrigeration cycle including a compressor and an outdoor heat exchanger, and an air conditioner indoor unit, which includes an indoor heat exchanger, and an expansion valve may be provided in the air conditioner indoor unit or the outdoor unit. The indoor heat exchanger and the outdoor heat exchanger function as a condenser or an evaporator. When the indoor heat exchanger is used as a condenser, the air conditioner is used as a heater of a heating mode, and when the indoor heat exchanger is used as an evaporator, the air conditioner is used as a cooler of a cooling mode.
The air conditioner indoor unit is connected to an outdoor unit installed in an outdoor space through a pipe. The outdoor unit may be provided with a compressor, an outdoor heat exchanger, an outdoor fan, an expander, and the like of the refrigeration cycle, and the indoor unit may be provided with an indoor heat exchanger and an indoor fan.
Example 1
Referring to fig. 1 to 7, the present embodiment proposes an air conditioner indoor unit, wherein a side facing a human body when a user uses the air conditioner indoor unit is a front side, and the air conditioner indoor unit includes a casing; the heat exchange module 1 is used for refrigerating and heating; and a fresh air module 2 arranged below the heat exchange module 1 and used for introducing fresh air from the outdoor.
The casing may be an air conditioner indoor unit casing in which an air conditioner indoor unit is provided in the case of a separate air conditioner, or may be an air conditioner own casing in the case of an integrated air conditioner.
A plurality of components constituting a refrigeration cycle are mounted in the body. The body includes a front surface, a rear surface, a bottom surface supporting the air conditioner, side surfaces disposed at both sides of the bottom surface, and a top surface defining a top structure, the front surface defining a front appearance of the air conditioner.
The fresh air module 2 comprises a fresh air pipe 21, a volute 23 and a dust removal filter screen 222. The new air pipe 21 is used for being communicated with the outside, an air duct 231 is arranged in the volute 23, and the air duct 231 is communicated with the new air pipe 21 to introduce fresh air into the room.
The air duct 231 is internally provided with a fresh air motor 3 and a fan 232, and an output shaft of the fresh air motor 3 is connected with the fan 232 and used for driving the fan 232 to rotate so as to introduce fresh air into a room.
The air intake department of spiral case 23 is provided with the filter screen and holds chamber 2311, and dust removal filter screen subassembly 22 detachable sets up in filter screen holds chamber 2311, holds chamber 2311 matched with sliding connection with the filter screen, holds in the chamber 2311 through the slip filter screen to realize dust removal filter screen subassembly 22's dismantlement.
The filter screen accommodating cavity 2311 is provided with a chute 2312, the chute 2312 is disposed on the upper side and the lower side of the inner wall of the filter screen accommodating cavity 2311, and the dust removing filter screen assembly 22 in this embodiment is drawn into the filter screen accommodating cavity 2311 from left to right along the chute 2312, so that the dust removing filter screen 222 can be detached or installed more smoothly along the chute 2312.
The driving component 24 is matched with the dust removing filter screen component 22 and is used for driving the dust removing filter screen component 22 to slide in the filter screen accommodating cavity 2311, so that the dust removing filter screen component 22 completely seals or partially opens the air duct 231 communicated with the fresh air pipe 21, and the fresh air inlet quantity is increased. The user can also manually slide the filter screen 222 dust removal assembly to control the fresh air intake.
The dust-removing filter assembly 22 is completely sealed and slides to a position fully matched with the filter accommodating cavity 2311, so that fresh air and intake air flow completely passes through the dust-removing filter assembly 22 and then enters the air duct 231. The part is opened to the position state that the dust removing filter screen assembly 22 slides to be incompletely matched with the filter screen accommodating cavity 2311, and at the moment, a larger gap is formed between the dust removing filter screen assembly 22 and the filter screen accommodating cavity 2311 and is not completely sealed, and part of fresh air inlet air directly enters the fresh air channel 231 without passing through the dust removing filter screen assembly 22, so that the flowing resistance of the fresh air inlet air in the channel 231 is greatly reduced, and the fresh air quantity is increased. The completely opened position state is that the dust removing filter screen assembly 22 is not completely matched with the filter screen accommodating cavity 2311, and at the moment, the dust removing filter screen assembly 22 slides to a position that fresh air inlet air directly enters the fresh air duct 231 without being filtered by the dust removing filter screen assembly 22, so that the flow resistance of the fresh air inlet air in the air duct 231 is greatly reduced, and the fresh air inlet quantity is effectively increased.
The driving assembly 24 includes a stepping motor 242 and a rotating wheel 243, wherein the stepping motor 242 and the rotating wheel 243 are mounted above the filter screen accommodating cavity 2311, and an output shaft of the stepping motor 242 is connected to the rotating wheel 243 for driving the rotating wheel 243 to rotate. The outside of the driving assembly 24, i.e., the stepper motor 242 and the rotating wheel 243, is provided with a fixing base 241, the upper side of the filter screen accommodating cavity 2311 is provided with a mounting seat 2313, and the fixing base 241 is fixedly connected with the mounting seat 2313 through a screw to fix the driving assembly 24 on the filter screen accommodating cavity 2311.
The upper side of the filter screen accommodating cavity 2311 is further provided with a via hole 2314, two sides of the via hole 2314 are provided with mounting seats 2313 for screw fixing connection, namely, the via hole 2314 is arranged between the two mounting seats 2313, the rotating wheel 243 is matched with the dust removing filter screen assembly 22 through the via hole 2314, specifically, the dust removing filter screen assembly 22 comprises a filter screen frame 221 and a filter screen 222, a plurality of protrusions 2221 are arranged above the filter screen frame 221, the protrusions 2221 are in the shape of strip-shaped protrusions 2221, the rotating wheel 243 is contacted with and matched with the plurality of strip-shaped protrusions 2221, the rotating wheel 243 rotates under the driving of the stepping motor 242, and the dust removing filter screen assembly 22 is driven to slide in the filter screen accommodating cavity 2311 through friction fit with protrusions, and the filter screen 222 in the embodiment adopts the HEPA dust removing filter screen 222.
Referring to fig. 2-8, a roller holder 2222 is disposed at the bottom side of the filter screen frame 221, and each roller holder 2222 is movably connected to a roller 223, so that the dust removing filter screen assembly 22 slides in the sliding groove 2312 of the filter screen accommodating cavity 2311 more smoothly. In other embodiments, the roller 223 may be configured to fit within the chute 2312 of the screen-receiving chamber 2311 to achieve the same effects described above.
Referring to fig. 2-9, in the present embodiment, when the dust filter assembly 22 is in the position of completely sealing the air duct 231, the dust filter assembly 22 is in the position of one with respect to the filter receiving cavity 2311.
After opening the new trend function, the air conditioning indoor unit detects the quality numerical value of new trend air, when the quality of new trend air that detects is relatively poor, at this moment, dust removal filter screen subassembly 22 slides to the right side that filter screen held chamber 2311 promptly in position one under the drive of drive assembly 24, dust removal filter screen subassembly 22 and filter screen hold chamber 2311 and cooperate completely between, new trend air all gets into wind channel 231 after the filtration of dust removal filter screen subassembly 22 again, realizes the high-efficient filtration to new trend air.
Referring to fig. 2-10, in the present embodiment, when the position state of the dust removing filter assembly 22 is partially opened or fully opened, the air duct 231 communicating with the fresh air duct 21, the position state of the dust removing filter assembly 22 with respect to the filter accommodating cavity 2311 is the position two.
Opening the fresh air function, the air conditioner indoor unit detects the quality value of the fresh air intake air, when the detected fresh air intake air is good in quality, the fresh air intake air can be efficiently filtered without passing through the dust removing filter screen assembly 22, at this time, the dust removing filter screen assembly 22 slides to the left side of the filter screen accommodating cavity 2311 by a certain distance to the second position under the driving of the driving assembly 24, and because the larger gap formed between the dust removing filter screen assembly 22 and the filter screen accommodating cavity 2311 is not in a completely sealed state any more, when the fresh air function is started, the fresh air intake air basically does not pass through the dust removing filter screen assembly 22 and directly enters the air duct 231. Specifically, the position where the dust removing assembly of the filter screen 222 slides leftwards to enable the exposed air inlet area of the air duct 231 to be equal to the air passing area of the new air duct 21, namely, the position where the dust removing filter screen assembly 22 completely opens the air duct 231 is the preferred position of the second position, and at the moment, the fresh air inlet air directly enters the position of the fresh air duct 231 without being filtered by the dust removing filter screen assembly 22, so that the flow resistance of the fresh air inlet air in the air duct 231 is greatly reduced, and the fresh air inlet quantity is effectively increased.
The dust removing filter screen assembly 22 is movably arranged relative to the air duct 231, and when the outdoor air quality is good, the dust removing filter screen assembly 22 can be driven to slide by the driving assembly 24, so that the air duct 231 is completely or partially opened, the wind resistance of fresh air inlet is reduced, and compared with the dust removing filter screen 222 in the existing air conditioner indoor unit, the noise during fresh air running can be reduced on the premise of the same fresh air inlet quantity, so that the use experience of a user is improved; under the same noise condition, the fresh air quantity can be greatly improved, and the use experience of a user is improved.
When the user needs to replace the dust removing filter screen assembly 22, the driving assembly 24 rotates to drive the dust removing filter screen assembly 22 to slide out of the filter screen accommodating cavity 2311, so that the user can conveniently pull out the dust removing filter screen assembly, and the filter screen 222 is replaced more simply and conveniently.
Referring to fig. 2-11, a primary filter screen 4222 is disposed on the fresh air duct 21, and the mesh aperture of the primary filter screen 4222 is larger than that of the dust removal filter screen 222, so as to filter some floccules or part of dust with larger volume, and pre-filter fresh air intake air under the condition of not weakening fresh air intake as much as possible, so as to reduce the filth blockage condition on the dust removal filter screen 222.
The primary filter screen 4222 is disposed at the indoor side of the new air duct 21, and is detachably connected with the new air duct 21, so as to facilitate the indoor user to detach and clean.
Example 2
Referring to fig. 2 to 13, the embodiment of the present application further provides a method for controlling a fresh air function of an air conditioner, and it should be noted that the method for controlling the fresh air function of the air conditioner in the embodiment of the present application is applicable to the indoor unit of the air conditioner provided in the embodiment of the present application. The following describes a control method of an air conditioner indoor unit provided in the embodiment of the present application.
The control method for the fresh air ventilation function in the embodiment comprises the following steps:
step S101, when a fresh air function is started, detecting the quality value of fresh air intake air.
In step S1O2, the position of the dust removing filter assembly 22 relative to the filter accommodating cavity 2311 is controlled according to the detected quality value of the fresh air.
According to the control method for the fresh air function of the air conditioner, when the fresh air function is started, the quality value of fresh air inlet air is detected; the position of the dust screen assembly 22 relative to the screen receiving cavity 2311 is controlled based on the detected quality value of the fresh air intake air. The problem that the position state of the dust removing filter screen assembly 22 cannot be automatically controlled according to the air quality of fresh air inlet in the related art is solved. By the detected quality value of the fresh air inlet air, the power-on state of the automatic control dust removal filter screen 222 is further achieved.
For step S102: the fresh air function is started by a user, the fresh air motor 3 runs in a gear set by the user, and the air conditioner controls the position state of the dust removal filter screen assembly 22 relative to the filter screen accommodating cavity 2311 according to the detected quality value of the fresh air, optionally, in the control method for the fresh air function of the air conditioner provided by the embodiment of the application, the quality value of the fresh air inlet air is determined by detecting the concentration of PM2.5 in the fresh air inlet air, and the concentration of PM2.5 in the fresh air inlet air can be detected by the PM2.5 tester.
When the quality value C of the fresh air intake air meets a first preset condition S1, the controller powers on the driving assembly 24, so that the dust removing filter screen assembly 22 is controlled to slide to a position state of being completely sealed with the air duct 231, namely a position I, and the dust removing filter screen assembly 22 purifies air sucked by the fresh air duct 21 from the outside;
when the quality value of the fresh air intake air meets the second preset condition S2, the controller energizes the driving assembly 24, so as to control the dust removing filter screen assembly 22 to slide to a position state of being partially or completely opened with the air duct 231, that is, a position two, at this time, a state that a larger gap is no longer completely sealed between the dust removing filter screen assembly 22 and the filter screen accommodating cavity 2311 is formed, and the fresh air intake air in the fresh air duct 21 basically directly enters the air duct 231 without passing through the dust removing filter screen assembly 22.
The control method further includes a first preset air quality value C1, wherein the first preset condition S1 is C > C1, and when the quality value C of the fresh air intake air satisfies the first preset condition S1, the controller energizes the driving assembly 24, so as to control the dust removing filter screen assembly 22 to slide to a position state of being completely sealed with the air duct 231, namely, a position one, and the dust removing filter screen assembly 22 purifies air sucked by the fresh air duct 21 from the outside; the second preset condition S2 is C less than or equal to C1, and when the quality value of the fresh air intake meets the second preset condition S2, the controller powers on the driving assembly 24, so as to control the dust-removing filter assembly 22 to slide to a position state of being partially opened or completely opened with the air duct 231, that is, a position two, and at this time, a larger gap is formed between the dust-removing filter assembly 22 and the filter-receiving cavity 2311 and is no longer in a completely sealed state, and the fresh air intake in the fresh air duct 21 directly enters the air duct 231 basically without passing through the dust-removing filter assembly 22.
In this embodiment, C1 is controlled by using a PM2.5 detection value, and the preferred value range of C1 is 75-150 ug/m 3 。
Meanwhile, when the air conditioning or fresh air function is turned off, the driving assembly 24 rotates to control the dust screen assembly 22 to slide to a position state of being completely sealed with the air duct 231, i.e., a position one.
Referring to fig. 2-14, in other embodiments of the control method, the fresh air function is an automatic fresh air function, and after the user turns on the automatic fresh air function, the air conditioner detects the indoor carbon dioxide concentration, and automatically controls the on/off and the rotation speed of the fresh air motor 3 according to the indoor carbon dioxide concentration, that is, controls the fresh air motor 3 to operate in a corresponding gear according to the indoor carbon dioxide concentration.
The fresh air motor 3 is operated to introduce fresh air into a room, the air conditioner acquires a quality value C of fresh air inlet air, when the quality value C of the fresh air inlet air meets a first preset condition S1, the controller powers on the driving assembly 24, so that the dust removing filter screen assembly 22 is controlled to slide to a position state of being completely sealed with the air duct 231, namely a position I, at the moment, the lowest rotating speed of the operation of the fresh air motor 3 is controlled to be R1 by the controller, and the dust removing filter screen assembly 22 purifies air sucked by the fresh air pipe 21 from the outside.
When the quality value of the fresh air intake air meets the second preset condition S2, the controller energizes the driving assembly 24, so as to control the dust removing filter screen assembly 22 to slide to a position state of being partially or completely opened with the air duct 231, namely a position two, at this time, a larger gap is formed between the dust removing filter screen assembly 22 and the filter screen accommodating cavity 2311, the fresh air intake air in the fresh air duct 21 is basically not passed through the dust removing filter screen assembly 22 and directly enters the air duct 231, and the controller controls the lowest rotating speed of the fresh air motor 3 to be limited to be R2, so that the condition that R1 is more than R2 is satisfied.
The control method further includes a first preset air quality value C1, the first preset condition S1 is C > C1, when the quality value C of the fresh air intake air meets the first preset condition S1, the controller powers on the driving assembly 24, so as to control the dust removing filter screen assembly 22 to slide to a position state of being completely sealed with the air duct 231, namely, a position one, at this time, the controller controls the lowest rotation speed of the fresh air motor 3 to be limited to R1, and the dust removing filter screen assembly 22 purifies the air sucked from the outdoor by the fresh air duct 21.
The second preset condition S2 is C1 or less, when the quality value of the fresh air intake meets the second preset condition S2, the controller powers on the driving assembly 24, so as to control the dust removing filter assembly 22 to slide to a position state of being partially opened or completely opened with the air duct 231, namely a position two, at this time, a larger gap is formed between the dust removing filter assembly 22 and the filter accommodating cavity 2311 and is not completely sealed, the fresh air intake in the fresh air duct 21 basically does not pass through the dust removing filter assembly 22 and directly enters the air duct 231, and the controller controls the lowest rotation speed of the fresh air motor 3 to be R2, thereby meeting the requirement that R1 is greater than R2. The air conditioner can restrict the fresh air motor 3 according to the position state of the dust removal filter screen assembly 22, when the fresh air inlet flow area in the air duct 231 is smaller, the minimum limiting rotating speed of the fresh air motor 3 is improved, so that the fresh air inlet quantity is increased, the requirement of a user on fresh air is met, and the use experience of the user is improved.
In this embodiment, C1 is controlled by using a PM2.5 detection value, and the preferred value range of C1 is 75-150 ug/m3.
Meanwhile, when the air conditioning or fresh air function is turned off, the driving assembly 24 rotates to control the dust screen assembly 22 to slide to a position state of being completely sealed with the air duct 231, i.e., a position one.
The foregoing is merely illustrative embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think about variations or substitutions within the technical scope of the present invention, and the invention should be covered. Therefore, the protection scope of the invention is subject to the protection scope of the claims.
Claims (15)
1. A control method of fresh air function of an air conditioner, which is applicable to an air conditioner indoor unit,
the method is characterized in that: the indoor unit of the air conditioner comprises:
a housing;
the heat exchange module is used for refrigerating and heating; and
the fresh air module is used for introducing fresh air from the outdoor; the fresh air module comprises
The fresh air pipe is used for being communicated with the outside to introduce fresh air;
the volute is internally provided with an air duct which is communicated with the fresh air pipe, and a filter screen accommodating cavity is arranged between an air inlet of the volute and the fresh air pipe;
the dust removing filter screen assembly is arranged in the filter screen accommodating cavity and is matched and connected with the filter screen accommodating cavity in a sliding manner; and
the driving assembly is matched with the dust removing filter screen assembly and used for driving the dust removing filter screen assembly to slide in the filter screen accommodating cavity so as to enable the dust removing filter screen assembly to be completely sealed or completely opened or partially opened to enable the air duct communicated with the new air duct;
the control method comprises the following steps:
when the fresh air function is started, the quality value of the fresh air inlet air is detected,
and controlling the position state of the dust removing filter screen component relative to the filter screen accommodating cavity according to the detected quality value of the fresh air inlet air.
2. The control method according to claim 1, characterized in that:
the dust-removing filter screen is characterized in that a chute is arranged on the filter screen accommodating cavity, and the dust-removing filter screen is scratched into the filter screen accommodating cavity along the chute so as to be convenient for the dust-removing filter screen to detach or install along the chute in a sliding manner.
3. The control method according to claim 1, characterized in that:
the novel air conditioner is characterized in that a fresh air motor and a fan are arranged in the air duct, and an output shaft of the fresh air motor is connected with the fan and used for driving the fan to rotate so as to introduce fresh air into a room.
4. The control method according to claim 2, characterized in that:
the driving assembly comprises a stepping motor and a rotating wheel, and an output shaft of the stepping motor is connected with the rotating wheel and used for driving the rotating wheel to rotate; the rotating wheel is matched with the dust removing filter screen component, and the stepping motor rotates to indirectly drive the dust removing filter screen component to slide.
5. The control method according to claim 4, characterized in that:
the outside of drive assembly is provided with the fixing base, the filter screen holds the upside in chamber and still is provided with the mount pad, the fixing base with mount pad fixed connection will drive assembly holds the chamber on the filter screen.
6. The control method according to claim 4, characterized in that:
the upper side of filter screen holds the chamber is provided with the via hole, the runner passes through the via hole with the cooperation of dust removal filter screen subassembly, thereby drive the dust removal filter screen subassembly is in the filter screen holds the chamber and slides.
7. The control method according to claim 6, characterized in that:
the dust removal filter screen component comprises a filter screen frame and a filter screen, a plurality of protrusions are arranged above the filter screen frame, and the rotating wheel is matched with the protrusions, so that the dust removal filter screen component is driven to slide in the filter screen accommodating cavity.
8. The control method according to claim 7, characterized in that:
the bottom side of filter screen frame is provided with the gyro wheel mount, all swing joint has the gyro wheel on the gyro wheel mount, so that dust removal filter screen subassembly is in it is more smooth and easy to slide in the spout.
9. The control method according to claim 1, characterized in that:
the novel air pipe is provided with a primary filter screen, and the mesh aperture of the primary filter screen is larger than that of the dust removal filter screen.
10. The control method according to claim 9, characterized in that:
the primary filter screen is detachably connected with the fresh air pipe.
11. The control method according to any one of claims 1 to 10, characterized in that:
the fresh air function in the method is an automatic fresh air function, when the automatic fresh air function is started, the indoor carbon dioxide concentration is detected, and the on-off and the rotating speed of the fresh air motor are automatically controlled according to the indoor carbon dioxide concentration.
12. The control method according to any one of claims 1 to 10, characterized in that:
after the fresh air function is closed, the dust removing filter screen component is controlled to slide to a position state of being completely sealed with the air duct.
13. The control method according to any one of claims 1 to 10, characterized in that:
the quality value of the fresh air intake air is determined by detecting the concentration of PM2.5 in the fresh air intake air.
14. The control method according to any one of claims 1 to 10, characterized in that:
when the quality value of the fresh air intake air meets a first preset condition, the controller electrifies the driving assembly, so that the dust removing filter screen assembly is controlled to slide to a position state of being completely sealed with the air duct;
when the quality value of the fresh air intake air meets a second preset condition, the controller electrifies the driving assembly, so that the dust removing filter screen assembly is controlled to slide to a position state of being partially or completely opened with the air duct.
15. The control method according to claim 14, characterized in that:
when the quality value of the fresh air intake air meets a first preset condition, limiting the lowest rotating speed of the operation of the fresh air motor to be R1;
when the quality value of the fresh air intake air meets a second preset condition, the lowest rotating speed of the fresh air motor is limited to be R2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010811244.3A CN111853949B (en) | 2020-08-13 | 2020-08-13 | Air conditioner indoor unit and control method for fresh air function of air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010811244.3A CN111853949B (en) | 2020-08-13 | 2020-08-13 | Air conditioner indoor unit and control method for fresh air function of air conditioner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111853949A CN111853949A (en) | 2020-10-30 |
| CN111853949B true CN111853949B (en) | 2024-02-09 |
Family
ID=72968628
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010811244.3A Active CN111853949B (en) | 2020-08-13 | 2020-08-13 | Air conditioner indoor unit and control method for fresh air function of air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111853949B (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113606174B (en) * | 2021-07-26 | 2022-11-01 | 珠海格力电器股份有限公司 | Fan and control method thereof |
| CN114543176B (en) * | 2022-02-16 | 2023-04-18 | 青岛海信日立空调系统有限公司 | Air conditioning equipment |
| CN114543171B (en) * | 2022-02-16 | 2023-04-18 | 青岛海信日立空调系统有限公司 | Air conditioner |
| CN113864866B (en) * | 2021-10-22 | 2022-11-18 | 珠海格力电器股份有限公司 | Air inlet amount control method and device for indoor unit of air conditioner, medium and equipment |
| CN114777256B (en) * | 2022-04-11 | 2023-06-30 | 珠海格力电器股份有限公司 | Fresh air component of air conditioner, control method of fresh air component and air conditioning system |
| CN114623497A (en) * | 2022-04-11 | 2022-06-14 | 珠海格力节能环保制冷技术研究中心有限公司 | Fresh air device, air conditioner indoor unit, air conditioner and control method of air conditioner |
| CN114811747A (en) * | 2022-04-20 | 2022-07-29 | 珠海格力电器股份有限公司 | Air conditioner indoor unit and control method |
| CN114992748A (en) * | 2022-06-20 | 2022-09-02 | 珠海格力电器股份有限公司 | Fresh air device, fresh air conditioner and fresh air device control method |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20000008790A (en) * | 1998-07-15 | 2000-02-15 | 윤종용 | Duct operation device and control method thereof for airconditioner |
| KR101629864B1 (en) * | 2015-11-12 | 2016-06-13 | 한국공조엔지니어링 주식회사 | The remote control air-conditioner by central controll type with fine dust removal device |
| CN107013976A (en) * | 2017-03-31 | 2017-08-04 | 广东美的制冷设备有限公司 | Indoor apparatus of air conditioner and indoor apparatus of air conditioner control the method that the first screen pack is slided |
| CN108361889A (en) * | 2018-03-06 | 2018-08-03 | 青岛海尔空调器有限总公司 | A kind of fresh air conditioner indoor unit |
| CN108397829A (en) * | 2018-04-20 | 2018-08-14 | 青岛海尔空调器有限总公司 | A kind of fresh air conditioner indoor unit |
| CN208042423U (en) * | 2018-02-24 | 2018-11-02 | 青岛海尔空调器有限总公司 | A kind of fresh air conditioner indoor unit |
| CN108954500A (en) * | 2018-04-28 | 2018-12-07 | 青岛海尔空调器有限总公司 | A kind of fresh air conditioner indoor unit |
| CN213019984U (en) * | 2020-08-13 | 2021-04-20 | 海信（山东）空调有限公司 | Air conditioner indoor unit |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101828587B1 (en) * | 2017-06-26 | 2018-02-13 | (주)센도리 | Ventilator to remove dust |
| CN209181118U (en) * | 2018-11-27 | 2019-07-30 | 广东美的制冷设备有限公司 | Air conditioner indoor unit and air conditioner |
-
2020
- 2020-08-13 CN CN202010811244.3A patent/CN111853949B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20000008790A (en) * | 1998-07-15 | 2000-02-15 | 윤종용 | Duct operation device and control method thereof for airconditioner |
| KR101629864B1 (en) * | 2015-11-12 | 2016-06-13 | 한국공조엔지니어링 주식회사 | The remote control air-conditioner by central controll type with fine dust removal device |
| CN107013976A (en) * | 2017-03-31 | 2017-08-04 | 广东美的制冷设备有限公司 | Indoor apparatus of air conditioner and indoor apparatus of air conditioner control the method that the first screen pack is slided |
| CN208042423U (en) * | 2018-02-24 | 2018-11-02 | 青岛海尔空调器有限总公司 | A kind of fresh air conditioner indoor unit |
| CN108361889A (en) * | 2018-03-06 | 2018-08-03 | 青岛海尔空调器有限总公司 | A kind of fresh air conditioner indoor unit |
| CN108397829A (en) * | 2018-04-20 | 2018-08-14 | 青岛海尔空调器有限总公司 | A kind of fresh air conditioner indoor unit |
| CN108954500A (en) * | 2018-04-28 | 2018-12-07 | 青岛海尔空调器有限总公司 | A kind of fresh air conditioner indoor unit |
| CN213019984U (en) * | 2020-08-13 | 2021-04-20 | 海信（山东）空调有限公司 | Air conditioner indoor unit |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111853949A (en) | 2020-10-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111853949B (en) | Air conditioner indoor unit and control method for fresh air function of air conditioner | |
| CN105972697B (en) | Air-conditioning | |
| CN106196358A (en) | Fresh air conditioner all-in-one | |
| CN111853948B (en) | Air conditioner indoor unit and control method for fresh air function of air conditioner | |
| CN111928346A (en) | Kitchen air conditioning system and control method thereof | |
| CN212618786U (en) | Air conditioner indoor unit | |
| CN111854010A (en) | Split type kitchen air conditioning system | |
| JPH1123046A (en) | Heating controller for air-conditioner | |
| AU2006250250A1 (en) | Method for controlling air conditioner | |
| CN213395604U (en) | Indoor air conditioner | |
| CN213019984U (en) | Air conditioner indoor unit | |
| CN213395611U (en) | Indoor air conditioner | |
| CN212869969U (en) | Indoor machine of air conditioner | |
| CN215062471U (en) | Adopt diagonal draw bar's small-size integral type cold and hot air conditioner | |
| CN213395588U (en) | Indoor air conditioner | |
| CN101469905A (en) | Water pan structure of dual-circulation single-outdoor unit | |
| CN217685474U (en) | Window air conditioner | |
| CN220689200U (en) | Hanging air conditioner | |
| CN213480382U (en) | Indoor machine of air conditioner | |
| CN213955446U (en) | Fresh air ventilation air conditioning device of energy-saving building | |
| CN220750261U (en) | Air duct machine | |
| CN217653979U (en) | Indoor unit of air conditioner | |
| CN213395586U (en) | Indoor air conditioner | |
| CN215570845U (en) | Indoor cabinet air conditioner | |
| CN215570846U (en) | Indoor cabinet 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 | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 266000 No. 151, Zhuzhou Road, Laoshan District, Shandong, Qingdao Applicant after: Hisense Air Conditioning Co.,Ltd. Address before: 266000 No. 151, Zhuzhou Road, Laoshan District, Shandong, Qingdao Applicant before: HISENSE (SHANDONG) AIR-CONDITIONING Co.,Ltd. |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant |