CN112856582A - Fresh air device, air conditioner and control method of air conditioner - Google Patents
Fresh air device, air conditioner and control method of air conditioner Download PDFInfo
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- CN112856582A CN112856582A CN202110190005.5A CN202110190005A CN112856582A CN 112856582 A CN112856582 A CN 112856582A CN 202110190005 A CN202110190005 A CN 202110190005A CN 112856582 A CN112856582 A CN 112856582A
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- 238000000034 method Methods 0.000 title claims abstract description 12
- 239000000428 dust Substances 0.000 claims abstract description 10
- 238000004140 cleaning Methods 0.000 claims description 14
- 230000000712 assembly Effects 0.000 claims description 5
- 238000000429 assembly Methods 0.000 claims description 5
- 238000004891 communication Methods 0.000 claims description 4
- 238000012546 transfer Methods 0.000 claims description 2
- 230000002411 adverse Effects 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 3
- 238000012423 maintenance Methods 0.000 abstract description 3
- 238000007599 discharging Methods 0.000 description 11
- 238000001914 filtration Methods 0.000 description 5
- 230000006872 improvement Effects 0.000 description 4
- 238000001746 injection moulding Methods 0.000 description 4
- 238000007789 sealing Methods 0.000 description 4
- 230000000903 blocking effect Effects 0.000 description 3
- 230000008676 import Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 210000001503 joint Anatomy 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 229920000742 Cotton Polymers 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
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Classifications
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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
- 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
- F24F1/0035—Indoor units, e.g. fan coil units characterised by introduction of outside air to the room
- F24F1/0038—Indoor units, e.g. fan coil units characterised by introduction of outside air to the room in combination with simultaneous exhaustion of inside air
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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
- 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
- F24F1/0018—Indoor units, e.g. fan coil units characterised by fans
- F24F1/0033—Indoor units, e.g. fan coil units characterised by fans having two or more fans
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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
- 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
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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
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
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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
- F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
- F24F13/10—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers
- F24F13/14—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre
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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
- F24F13/28—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
- F24F2221/00—Details or features not otherwise provided for
- F24F2221/22—Cleaning ducts or apparatus
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
本发明提供一种新风装置、空调器及其控制方法，其中的新风装置，包括装置壳体，所述装置壳体内构造有新风驱动腔，所述新风驱动腔具有新风引入口、新风排出口，所述新风引入口与新风引入管的一端连通，所述新风引入管的另一端连接有室外风口组件，所述室外风口组件的新风进口处设有室外过滤件，还包括室内风口件，所述室内风口件上构造有与所述新风排出口连通的第一风口以及与空调器室内机具有的送风风道贯通的第二风口，所述第一风口、第二风口中的一个处于关闭状态时，另一个处于贯通状态。根据本发明，能够利用送风风道中的气流对所述室外过滤件实现自清洁，防止集尘对新风进风量的不利影响，降低了用户对空调器的维护压力。
The present invention provides a fresh air device, an air conditioner and a control method thereof, wherein the fresh air device includes a device casing, and a fresh air drive cavity is constructed in the device casing, and the fresh air drive cavity has a fresh air inlet and a fresh air outlet, The fresh air inlet is communicated with one end of the fresh air introduction pipe, the other end of the fresh air introduction pipe is connected with an outdoor air outlet assembly, an outdoor filter element is provided at the fresh air inlet of the outdoor air outlet assembly, and an indoor air outlet element is also included. The indoor tuyere piece is constructed with a first tuyere that communicates with the fresh air outlet and a second tuyere that penetrates through the air supply duct of the indoor unit of the air conditioner, and one of the first tuyere and the second tuyere is in a closed state , the other is in a through state. According to the present invention, the outdoor filter element can be self-cleaned by using the airflow in the air supply air duct, so as to prevent the adverse effect of dust collection on the fresh air intake, and reduce the maintenance pressure of the user on the air conditioner.
Description
Technical Field
The invention belongs to the technical field of air conditioning, and particularly relates to a fresh air device, an air conditioner and a control method of the fresh air device.
Background
Along with the improvement of consumer's level, more and more possess the air conditioner of fresh air function of taking a breath and begin to get into the consumer market, present fresh air conditioner will introduce outdoor new trend and need expose the fresh air pipe outdoors, and after long-term the use, the mouth of pipe is the dust of accumulating easily, and the user if can't regularly wash the air-supply line, the dust of accumulating together can block up the pipeline, and then influences the intake.
Disclosure of Invention
Therefore, the invention provides a fresh air device, an air conditioner and a control method thereof, which overcome the defects that dust is easy to accumulate on an outdoor side pipe orifice of the fresh air device and cannot be cleaned regularly in the prior art, and further the fresh air intake is reduced.
In order to solve the problems, the invention provides a fresh air device which comprises a device shell, wherein a fresh air driving cavity is formed in the device shell, the fresh air driving cavity is provided with a fresh air inlet and a fresh air outlet, the fresh air inlet is communicated with one end of a fresh air inlet pipe, the other end of the fresh air inlet pipe is connected with an outdoor air port assembly, an outdoor filter piece is arranged at a fresh air inlet of the outdoor air port assembly, the fresh air device also comprises an indoor air port piece, a first air port communicated with the fresh air outlet and a second air port communicated with an air duct of an indoor unit of an air conditioner are formed in the indoor air port piece, and when one of the first air port and the second air port is in a closed state, the other air port is in a communicated state.
Preferably, a first air door is arranged in the second air port, the first air door can be driven to rotate, and the second air port is provided with a fresh air exhaust position for closing the second air port and communicating the first air port and a clean air introduction position for closing the first air port and communicating the second air port; and/or a dust sensor is arranged in the outdoor air opening assembly and used for detecting the blocking state of the outdoor filter piece.
Preferably, still be constructed in the device casing and have dirty wind drive chamber, new trend drive chamber, dirty wind drive chamber are independent each other, new trend drive intracavity is equipped with first fan blade, dirty wind drive chamber has dirty wind inlet, dirty wind discharge port, dirty wind drive intracavity is equipped with the second fan blade.
Preferably, the dirty wind discharge port corresponds dirty wind discharge pipe, the new trend inlet tube with be equipped with the second air door between the dirty wind discharge pipe, the second air door has the messenger the new trend inlet tube with dirty wind discharge pipe intercommunication just makes cut the first position and make between new trend inlet tube and dirty wind discharge pipe and the external environment the new trend inlet tube with the second position that dirty wind discharge pipe cut.
Preferably, the device casing includes dirty wind side spiral case, motor mounting panel, new trend side spiral case, dirty wind side spiral case with motor mounting panel equipment is as an organic whole and forms between the two dirty wind drive chamber, new trend side spiral case with motor mounting panel equipment is as an organic whole and forms between the two new trend drive chamber, a driving motor fixed connection in on the motor mounting panel, and be in new trend drive chamber or dirty wind drive intracavity.
Preferably, the new trend side spiral case includes new trend spiral case main part, construct first through-flow hole in the new trend spiral case main part, first fan blade is in first through-flow hole, first through-flow hole is kept away from one side of motor mounting panel is connected with first spiral case closing cap, the new trend is introduced the mouth and is constructed on the first spiral case closing cap.
Preferably, a first filter assembly is arranged on a communication path between the first through hole and the fresh air inlet.
Preferably, the second damper is located on an air inlet side of the first through-flow hole, and the first filter assembly is further located between the second damper and the first through-flow hole.
Preferably, a filter element mounting and dismounting passage is formed on the first volute casing cover, and the first filter assembly is inserted into the filter element mounting and dismounting passage.
Preferably, the first filter assembly includes a filter element handle having a placement slot therein, the first filter element being disposed within the placement slot.
Preferably, the first filter assemblies have two groups, the filter element disassembling and assembling passages have two groups, the two filter element disassembling and assembling passages are symmetrically positioned at two sides of the first volute casing sealing cover, and the two groups of first filter assemblies are respectively inserted into the two filter element disassembling and assembling passages in a one-to-one correspondence manner; and/or, the new trend spiral case main part orientation still is connected with and filters a mounting bracket on one side of first spiral case closing cap, first filtering component slidable connect in filter one side that the mounting bracket deviates from the new trend spiral case main part.
Preferably, the filter element handle is provided with a handle outer side plate matched with the filter element dismounting and mounting channel, and a dirty air inlet communicated with the dirty air inlet is formed in the handle outer side plate; and/or the handle outer side plate is provided with a handle position.
Preferably, a second filter element is arranged in the dirty air inlet; and/or a first dirty air overflowing hole communicated with a dirty air inlet of the dirty air driving cavity is further formed in the fresh air volute main body.
Preferably, the fresh air device further comprises a dirty air circulation switching shell, a second dirty air overflowing hole communicated with a dirty air outlet of the dirty air driving cavity is further formed in the fresh air volute body, and a first overflowing hole in butt joint with the second dirty air overflowing hole and a second overflowing hole in butt joint with the dirty air discharging pipe are formed in the dirty air circulation switching shell; and/or the dirty air outlet and/or the dirty air inlet are/is formed on the motor mounting plate.
Preferably, dirty wind side spiral case includes dirty wind spiral case main part, be constructed with the second through-flow hole on the dirty wind spiral case main part, the second fan blade is in the second through-flow hole, the second through-flow hole is kept away from one side of motor mounting panel is connected with second spiral case closing cap.
Preferably, the dirty air volute main body is further provided with a first fresh air overflowing hole communicated with the fresh air outlet; and/or the fresh air outlet is constructed on the motor mounting plate.
The invention also provides an air conditioner which comprises the fresh air device.
The invention also provides a control method of the air conditioner, which is used for controlling the air conditioner and comprises the following steps:
after the self-cleaning instruction is obtained, the first air port is controlled to be closed, the second air port is controlled to be communicated, and the fresh air driving cavity is controlled to be communicated with the fresh air introducing pipe.
According to the fresh air device, the air conditioner and the control method thereof, the first air port and the second air port which are communicated with the fresh air driving cavity are respectively arranged on the indoor air port piece, and the second air port can be communicated with the air supply duct, so that air supply air flow can be conveyed to an outdoor filter piece in an outdoor air port assembly through the fresh air driving cavity and the fresh air introducing pipe when the air supply air flow and the air supply duct are communicated, the outdoor filter piece can be self-cleaned by utilizing the air flow in the air supply duct, the adverse effect of dust collection on fresh air inlet volume is prevented, and the maintenance pressure of a user on the air conditioner is reduced.
Drawings
FIG. 1 is a schematic view of a disassembled structure of a fresh air device according to an embodiment of the present invention (omitting an outdoor air inlet component part);
FIG. 2 is a schematic perspective view of the dirty wind volute body of FIG. 1;
FIG. 3 is a schematic perspective view of the motor mounting plate of FIG. 1;
FIG. 4 is a schematic perspective view of the fresh air volute body of FIG. 1;
FIG. 5 is a perspective view of the strainer handle of FIG. 1;
FIG. 6 is a perspective view of the first volute closure cap of FIG. 1;
FIG. 7 is a schematic view of an assembly structure of the fresh air device in FIG. 1 at a viewing angle;
FIG. 8 is a schematic perspective view of the dirty wind volute body of FIG. 1;
FIG. 9 is a schematic view of the fresh air device of FIG. 1 from a further perspective;
FIG. 10 is a side view A-A of FIG. 9, with the arrows showing the direction of airflow in the fresh air device with fresh air being introduced, and with the second damper in a second position;
FIG. 11 is a top view taken from A-A of FIG. 9, with arrows showing the direction of flow of indoor dirty air being driven by the second fan blade into the dirty air drive chamber;
FIG. 12 is a schematic view (partially in section) of an assembly structure of a fresh air device according to an embodiment of the present invention;
FIG. 13 is a schematic view of an airflow path of a fresh air device according to an embodiment of the present invention in a fresh air introducing state;
fig. 14 is a schematic view of an airflow path of a fresh air device operating in a self-cleaning state according to an embodiment of the present invention.
The reference numerals are represented as:
1. a fresh air driving cavity; 11. a fresh air introduction port; 111. a fresh air inlet pipe; 12. a fresh air outlet; 13. a first fan blade; 2. a dirty air driving chamber; 21. a dirty air inlet; 22. a dirty air outlet; 221. a dirty air discharge pipe; 23. a second fan blade; 31. a first drive motor; 32. a second drive motor; 41. a second damper; 5. a first filter assembly; 51. a filter element handle; 511. a handle outer panel; 512. a dirty air inlet; 513. a second filter member; 514. a handle position; 52. a first filter member; 53. a filter mounting bracket; 101. a dirty air side volute; 1011. a dirty wind volute body; 10111. a first fresh air flowing hole; 1012. a second vent hole; 1013. a second volute cover; 102. a motor mounting plate; 103. a fresh air side volute; 1031. a fresh air volute body; 10311. a first dirty air flow aperture; 10312. a second dirty air discharge hole; 1032. a first through-flow aperture; 1033. a first volute cover; 10331. a filter element dismounting channel; 1034. the dirty wind circulates and changes over the shell; 200. an air conditioner indoor unit; 201. an air supply duct; 300. an outdoor air outlet assembly; 301. an outdoor filter element; 400. an indoor air port member; 401. a first tuyere; 402. a second tuyere; 403. a first damper; 404. and a third drive motor.
Detailed Description
With reference to fig. 1 to 14, according to an embodiment of the present invention, a fresh air device is provided, which includes a device housing, a fresh air driving cavity 1 is configured in the device housing, the fresh air driving cavity 1 has a fresh air inlet 11 and a fresh air outlet 12, the fresh air inlet 11 is communicated with one end of a fresh air inlet pipe 111, the other end of the fresh air inlet pipe 111 is connected to an outdoor air port assembly 300, an outdoor filter 301 is disposed at a fresh air inlet of the outdoor air port assembly 300, and an indoor air port 400 is further included, a first air port 401 communicated with the fresh air outlet 12 and a second air port 402 communicated with an air supply duct 201 of an indoor air conditioner 200 are configured on the indoor air port assembly 400, and when one of the first air port 401 and the second air port 402 is in a closed state, the other one is in a through state. In the technical scheme, the indoor air port piece 400 is respectively provided with the first air port 401 and the second air port 402 which are communicated with the fresh air driving cavity 1, and the second air port 402 can be communicated with the air supply air channel 201, so that the air supply air flow can be conveyed to the outdoor filter piece 301 in the outdoor air port assembly 300 through the fresh air driving cavity 1 and the fresh air introducing pipe 111 when the second air port 402 is communicated with the air supply air channel 201, and then the air flow in the air supply air channel can be utilized to realize self-cleaning of the outdoor filter piece 301, thereby preventing the adverse effect of dust collection on the fresh air intake and reducing the maintenance pressure of a user on the air conditioner.
As a specific implementation manner, a first air door 403 is arranged in the second air port 402, the first air door 403 can be driven to rotate, and has a fresh air discharge position at which the second air port 402 is closed and the first air port 401 is communicated, and a clean air introduction position at which the first air port 401 is closed and the second air port 402 is communicated, that is, in this technical scheme, only one first air door 403 is arranged, so that the selection of simultaneously communicating and closing the first air port 401 and the second air port 402 can be met, and further, the switching between the self-cleaning function and the fresh air function of the air conditioner can be realized, and it can be understood that the first air door 403 is controlled by a third driving motor 404; preferably, a dust sensor is disposed in the outdoor air inlet assembly 300, and is used for detecting a blocking state of the outdoor filter member 301, so that whether the self-cleaning mode is operated or not can be determined by determining the blocking state, which is more intelligent.
Preferably, dirty wind drive chamber 2 is still constructed in the device casing, new trend drive chamber 1, dirty wind drive chamber 2 are independent each other, be equipped with first fan blade 13 in the new trend drive chamber 1 for introduce the new trend air current in the air current such as external environment via new trend inlet 11 drive in the new trend drive chamber 1 and via new trend discharge port 12 is arranged to the indoor space, dirty wind drive chamber 2 has dirty wind inlet 21, dirty wind discharge port 22, be equipped with second fan blade 23 in dirty wind drive chamber 2, second fan blade 23 is used for with indoor dirty wind current via dirty wind inlet 21 drive is introduced dirty wind drive chamber 2 and via dirty wind discharge port 22 is arranged to the outdoor environment. In this technical scheme, first fan blade 13 and second fan blade 23 can drive to new trend and indoor dirty wind respectively, thereby can make the new trend device can introduce indoor with the new trend in the external environment, can also discharge indoor dirty wind to outdoor environment in, promote indoor air quality more high-efficiently, simultaneously, owing to construct new trend drive chamber 1 and dirty wind drive chamber 2 simultaneously in the device casing, still make the overall structure of new trend device is compacter, and occupation space is littleer.
It can be understood that, first fan blade 13 and second fan blade 23 all have corresponding drive arrangement for example driving motor drive rotatory, as a more preferred mode, the new trend device still includes first driving motor 31, first driving motor 31 is two output shaft motors, first fan blade 13, second fan blade 23 suit respectively in the both ends of the power output shaft of two output shaft motors to can make the structure of new trend device can also reduce driving motor's acquisition cost when compacter, can also simplify the design of electrical control system in addition.
In some embodiments, the fresh air introducing port 11 corresponds to a fresh air introducing pipe 111, the dirty air discharging port 22 corresponds to a dirty air discharging pipe 221, a second air door 41 is disposed between the fresh air introducing pipe 111 and the dirty air discharging pipe 221, the second air door 41 has a first position at which the fresh air introducing pipe 111 and the dirty air discharging pipe 221 are communicated and the fresh air introducing pipe 111 and the dirty air discharging pipe 221 are cut off from the external environment and a second position at which the fresh air introducing pipe 111 and the dirty air discharging pipe 221 are cut off, the fresh air introducing pipe 111 and the dirty air discharging pipe 221 are respectively connected with a fresh air pipe and a dirty air pipe between the indoor and the outdoor, the second air door 41 is disposed to enable the dirty air driving chamber 2 and the fresh air driving chamber 1 to be in controllable communication, so as to enable the fresh air device to realize internal circulation in the operation mode, for example, indoor dirty air is introduced into the dirty air driving chamber 2 and then introduced into the fresh air driving chamber 1 to be discharged, and it can be understood that corresponding air cleaning components (for example, the first filter assembly 5 in the following) are arranged on the air flow paths of the dirty air driving chamber and the fresh air driving chamber so as to realize air cleaning by means of dirty air internal circulation. The switching of the position of the second damper 41 may be controlled by the second drive motor 32.
In some embodiments, the device housing includes a dirty-side volute 101, a motor mounting plate 102, a fresh-side volute 103, the dirty wind side scroll 101 and the motor mounting plate 102 are assembled integrally and the dirty wind driving chamber 2 is formed therebetween, the fresh air side volute 103 and the motor mounting plate 102 are assembled into a whole, the fresh air driving cavity 1 is formed between the fresh air side volute and the motor mounting plate 102, the first driving motor 31 is fixedly connected to the motor mounting plate 102, and is positioned in the fresh air driving cavity 1 or the dirty air driving cavity 2, the adjacent two parts are sealed, through the mode of dirty wind side spiral case 101, motor mounting panel 102, the equipment of new trend side spiral case 103 three can make the formation of new trend drive chamber 1 and dirty wind drive chamber 2 is more convenient, and three parts can adopt the mode of moulding plastics to make respectively and form, have reduced the whole technology degree of difficulty of moulding plastics.
As a specific implementation manner of the fresh air side volute 103, the fresh air side volute 103 includes a fresh air volute main body 1031, a first through hole 1032 is configured on the fresh air volute main body 1031, the first fan blade 13 is located in the first through hole 1032, one side of the first through hole 1032, which is far away from the motor mounting plate 102, is connected with a first volute sealing cover 1033, the fresh air introducing port 11 is configured on the first volute sealing cover 1033, at this time, the fresh air volute main body 1031 and the first volute sealing cover 1033 may be formed in an injection molding manner, so as to further reduce the difficulty of the whole injection molding process.
At this time, it is preferable that a first filter assembly 5 is disposed on a communication path between the first through hole 1032 and the fresh air inlet 11, so as to filter and purify the fresh air introduced by the fresh air inlet 11, further, the second air door 41 is located on the air inlet side of the first through hole 1032, the first filter assembly 5 is further located between the second air door 41 and the first through hole 1032, that is, the first filter assembly 5 can also filter and purify the dirty air introduced by the dirty air discharge pipe 221, as described above, the operation of the fresh air device is in an internal circulation mode, so as to realize the purification and filtration of the indoor return air, and improve the indoor air quality.
In some embodiments, the first volute cover 1033 is configured with a filter element mounting passage 10331, and the first filter assembly 5 is inserted into the filter element mounting passage 10331, so that the first filter assembly 5 can be mounted and dismounted without removing the first volute cover 1033, which is more convenient.
As an embodiment of the first filter assembly 5, the first filter assembly 5 includes a filter handle 51, the filter handle 51 has a placement groove (it is understood that the placement groove has a vent hole), the first filter 52 is placed in the placement groove, the filter handle 51 serves as a placement carrier for the first filter 52, and the first filter 52 can be moved into and out of the fresh air side volute 103 by pulling the filter handle 51. The first filter 52 may be, for example, a HEPA filter.
In some embodiments, the first filter assembly 5 has two sets, the filter element detaching passage 10331 has two filter element detaching passages 10331, the two filter element detaching passages 10331 are symmetrically located at two sides of the first volute cover 1033, the two sets of first filter assemblies 5 are respectively inserted into the two filter element detaching passages 10331 in a one-to-one correspondence manner, and the operation stroke of the first filter assembly 5 during the detaching process can be reduced by the two first filter assemblies 5 which are symmetrically located, which is particularly suitable for the working condition with relatively small installation space.
Fresh air volute main body 1031 orientation one side of first volute closing cover 1033 still is connected with and filters a mounting bracket 53, first filter assembly 5 connect in slidable in filter one side that filters mounting bracket 53 and deviate from fresh air volute main body 1031, filter and be constructed a plurality of through-holes on the mounting bracket 53 to prevent to produce big hindrance to the fresh air current, it can be right to filter first filter piece 52 orientation one side of second fan blade 23 forms the support, prevents first filter piece 52 deformation under fresh air inlet pressure.
The filter handle 51 has with the handle outer panel 511 that matches of the filter dismouting passageway 10331, be constructed on the handle outer panel 511 with dirty wind import 512 of mouth 21 intercommunication is introduced to dirty wind, will dirty wind import 512 set up in on the handle outer panel 511, can with the new trend is introduced the position of setting up of mouth 11 and is unanimous on the whole, does benefit to the outward appearance promotion of air conditioner (new trend is introduced mouth 11 and dirty wind import 512 and is all set up in the one side of the user that faces away from of air conditioner). Further, a handle position 514 is configured on the handle outer side plate 511, which is beneficial for users to assemble and disassemble the first filter assembly 5.
A second filtering member 513 is arranged in the dirty air inlet 512, and the second filtering member 513 can be a conventional filtering net, for example, so as to prevent external cotton wool and particle dirt from entering the inside of the fresh air device; the fresh air volute main body 1031 is further provided with a first dirty air flowing hole 10311 communicated with a dirty air inlet 21 of the dirty air driving cavity 2, so that a channel through which dirty air flows is integrated on the fresh air volute main body 1031, and the structural compactness of the fresh air device is further improved.
In some embodiments, the fresh air device further includes a dirty air circulation adaptor housing 1034, a second dirty air flow hole 10312 is formed in the fresh air volute main body 1031 and communicates with the dirty air outlet 22 of the dirty air driving chamber 2, a first flow hole (not shown) is formed in the dirty air circulation adaptor housing 1034, and the first flow hole (not shown) is connected to the second dirty air flow hole 10312, and a second flow hole (not shown) is connected to the dirty air outlet pipe 221, so as to further improve the compactness of the fresh air device.
As a specific implementation manner of the dirty-air-side volute 101, preferably, the dirty-air-side volute 101 includes a dirty-air volute main body 1011, a second through-flow hole 1012 is configured on the dirty-air volute main body 1011, the second fan blade 23 is located in the second through-flow hole 1012, one side of the second through-flow hole 1012, which is far away from the motor mounting plate 102, is connected with a second volute cover 1013, and at this time, the dirty-air volute main body 1011 and the second volute cover 1013 may be formed by injection molding respectively, so as to further reduce difficulty of the whole injection molding process.
In order to further improve the structural compactness of the fresh air device, a first fresh air overflowing hole 10111 communicated with the fresh air outlet 12 is further formed in the dirty air volute main body 1011; and/or the dirty air outlet 22 and/or the dirty air inlet 21 and the fresh air outlet 12 are formed on the motor mounting plate 102.
In some embodiments, the first driving motor 31, the second driving motor 32, and the third driving motor 404 are all stepping motors, and the first fan 13 and the second fan 23 are all centrifugal fans.
According to an embodiment of the invention, an air conditioner is also provided, which comprises the fresh air device.
According to an embodiment of the present invention, the method for controlling the air conditioner includes the following steps:
after the self-cleaning instruction is obtained, the first air port 401 is controlled to be closed, the second air port 402 is controlled to be communicated, and the fresh air driving cavity 1 is controlled to be communicated with the fresh air introducing pipe 111, at this time, it can be understood that the outlet air flow in the air supply duct 201 is introduced into the fresh air driving cavity 1 through the second air port 402 and then enters the outdoor air port assembly 300 along the fresh air introducing pipe 111, so that the outdoor filter element 301 is subjected to back blowing, the self-cleaning of the outdoor air port assembly 300 is realized, in this process, the first fan blade 13 and the second fan blade 23 do not rotate, and the power of the cleaning air flow is driven by the air supply fan of the indoor unit of the air conditioner.
Preferably, the control unit automatically determines whether to enter the self-cleaning mode according to a detection result of the dust sensor, and then sends a corresponding self-cleaning command to realize self-cleaning of the outdoor filter element 301.
The control method of the air conditioner may further include the steps of:
acquiring an operation mode of an air conditioner;
the position switching of the second damper 41 and the first damper 403 is controlled according to the operation mode.
Specifically, as shown in fig. 10 and 11, when the operation mode is the air suction and exhaust mode, the second air door 41 is controlled to be at the second position, so that the fresh air introducing pipe 111 and the dirty air discharging pipe 221 are independent from each other, the fresh air in the external environment is driven by the first fan blade 13 to sequentially enter the fresh air driving chamber 1 through the fresh air introducing pipe 111 and the fresh air introducing port 11, and is driven by the first fan blade 13 to be discharged into the room through the fresh air discharging port 12, the first fresh air through 10111 and the first air port 401, and is synchronous with the flow holes thereof, the indoor dirty air is driven by the second fan blade 23 to sequentially enter the dirty air driving chamber 2 through the dirty air inlet 512, the first dirty air through 10311 and the dirty air introducing port 21, and is driven by the second fan blade 23 to sequentially enter the dirty air discharging port 22, the second dirty air through 10312, the dirty air flow transfer housing, The dirty air discharge pipe 221 discharges to the external environment, so that the introduction of fresh air and the discharge of indoor dirty air are realized, and the first air door 403 is located at the fresh air discharge position.
It is readily understood by a person skilled in the art that the advantageous ways described above can be freely combined, superimposed without conflict.
The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention. The above is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the technical principle of the present invention, and these improvements and modifications should also be regarded as the protection scope of the present invention.
Claims (18)
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| CN202110190005.5A CN112856582B (en) | 2021-02-18 | 2021-02-18 | Fresh air device, air conditioner and control method thereof |
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| CN112856582B (en) | 2025-01-10 |
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