CN108895642B - Air duct system and air conditioner - Google Patents
Air duct system and air conditioner Download PDFInfo
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- CN108895642B CN108895642B CN201810925593.0A CN201810925593A CN108895642B CN 108895642 B CN108895642 B CN 108895642B CN 201810925593 A CN201810925593 A CN 201810925593A CN 108895642 B CN108895642 B CN 108895642B
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- 238000004891 communication Methods 0.000 claims abstract description 13
- 238000005192 partition Methods 0.000 claims abstract description 10
- 238000000926 separation method Methods 0.000 claims abstract description 9
- 238000001914 filtration Methods 0.000 claims description 46
- 238000007599 discharging Methods 0.000 claims description 14
- 238000000034 method Methods 0.000 description 7
- 238000005452 bending Methods 0.000 description 6
- 238000009434 installation Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000002441 reversible effect Effects 0.000 description 3
- 238000000746 purification Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
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
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/02—Ducting arrangements
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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
- F24F13/1426—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre characterised by actuating means
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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
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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
- F24F13/1426—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre characterised by actuating means
- F24F2013/1433—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre characterised by actuating means with electric motors
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
The application provides an air duct system and an air conditioner. The air duct system includes: the first end of the main air channel is provided with an outdoor air inlet/outlet and an indoor air inlet, the second end of the main air channel is provided with an indoor air outlet/outlet, and the main air channel is divided into a turbid air exhaust air channel and a filtered air channel by the partition plate; the annular branch air duct is provided with a first port and a second port, the first port and the second port are communicated with the main air duct, and the communication position of the annular branch air duct and the main air duct is positioned between the separation section and the indoor air outlet/air outlet; the fan is arranged in the annular branch air duct; the outdoor air inlet/outlet, the indoor air inlet, the turbid air exhaust air channel and the filtered air channel are all connected with the first reversing valve; and the second reversing valve, the first port, the second port, the third port and the fourth port at the connection position of the main air channel and the circular branch air channel are all connected with the second reversing valve. The air duct system has the advantages of simple structure and low cost.
Description
Technical Field
The application relates to the technical field of air conditioners, in particular to an air duct system and an air conditioner.
Background
Patent document No. 201620371966.0 discloses an air duct switching structure of a fresh air machine, which has a first air valve and a second air valve. The switching of two working modes of fresh air total heat exchange purification and return air internal circulation purification is realized by controlling the opening and closing of the air valve. The mode needs to independently set the air supply and return air channels, and each air channel needs to be independently provided with a fan, so that the cost is high and the structure is complex.
Patent document 201520186838.4 discloses a fresh air ventilator, has three kinds of mode of outdoor fresh air, indoor air filtration and exhaust turbid wind, but need set up exhaust fan and forced draught blower alone, and the cost is higher and the structure is complicated. When the turbid wind is discharged, the indoor air needs to be filtered by the filter screen and then discharged outside, and the service life of the filter screen is also reduced.
Disclosure of Invention
The application mainly aims to provide an air duct system and an air conditioner, which are used for solving the problems of complex structure and high cost of an air duct of a fresh air machine in the prior art.
To achieve the above object, according to one aspect of the present application, there is provided an air duct system comprising: the air conditioner comprises a main air duct, wherein a first end of the main air duct is provided with an outdoor air inlet/outlet and an indoor air inlet, a second end of the main air duct is provided with an indoor air outlet/outlet, a separation section is arranged in the main air duct, a partition plate is arranged in the separation section, and the partition plate separates the main air duct into a turbid air exhaust air duct and a filtered air duct; the annular branch air duct is provided with a first port and a second port, the first port and the second port are communicated with the main air duct, and the communication position of the annular branch air duct and the main air duct is positioned between the separation section and the indoor air outlet/air outlet; the fan is arranged in the annular branch air duct; the outdoor air inlet/outlet, the indoor air inlet, the turbid air exhaust air channel and the filtered air channel are all connected with the first reversing valve; the first port, the second port, the third port and the fourth port at the connection position of the main air duct and the annular branch air duct are all connected with the first reversing valve; the air duct system comprises a fresh air inlet working mode, an indoor air filtering working mode, an outdoor fresh air inlet and indoor air filtering working mode and an indoor turbid air discharging working mode, and the first reversing valve and the second reversing valve are used together to control the air duct system to switch among the fresh air inlet working mode, the indoor air filtering working mode, the outdoor fresh air inlet and indoor air filtering working mode and the indoor turbid air discharging working mode.
Further, the first reversing valve comprises a first valve port A, a second valve port B, a third valve port C and a fourth valve port D, wherein the first valve port A is communicated with the outdoor air inlet/outlet, the second valve port B is communicated with the indoor air inlet, the third valve port C is communicated with the air filtering duct, and the fourth valve port D is communicated with the turbid air exhausting duct; the first reversing valve controls the opening and closing of the first valve port A, the second valve port B, the third valve port C and the fourth valve port D so as to control the air duct system to switch among the fresh air inlet working mode, the indoor air filtering working mode, the outdoor fresh air inlet and indoor air filtering working mode and the indoor turbid air discharging working mode.
Further, the second reversing valve comprises a first valve port E, a second valve port F, a third valve port G and a fourth valve port H, wherein the first valve port E is communicated with the first port, the second valve port F is communicated with the third port, the third valve port G is communicated with the second port, and the fourth valve port H is communicated with the fourth port; the second reversing valve controls the opening and closing of the first valve port E, the second valve port F, the third valve port G and the fourth valve port H so as to control the air duct system to switch among the fresh air inlet working mode, the indoor air filtering working mode, the outdoor fresh air inlet and indoor air filtering working mode and the indoor turbid air discharging working mode.
Further, when the air duct system is in the fresh air inlet working mode: the first valve port A and the third valve port C of the first reversing valve are both opened and communicated, and the second valve port B and the fourth valve port D are both closed; the first valve port E and the fourth valve port H of the second reversing valve are both opened and communicated with each other, and the second valve port F and the third valve port G are both opened and communicated with each other.
Further, when the duct system is in the indoor air filtration mode of operation: the first valve port A and the fourth valve port D of the first reversing valve are closed, and the second valve port B and the third valve port C are opened and communicated with each other; the first valve port E and the fourth valve port H of the second reversing valve are both opened and communicated with each other, and the second valve port F and the third valve port G are both opened and communicated with each other.
Further, when the air duct system is in the outdoor fresh air intake+indoor air filtration working mode: the first valve port A, the second valve port B and the third valve port C of the first reversing valve are all opened and communicated with each other, and the fourth valve port D is closed; the first valve port E and the fourth valve port H of the second reversing valve are both opened and communicated with each other, and the second valve port F and the third valve port G are both opened and communicated with each other.
Further, when the air duct system is in the indoor turbid wind discharging working mode: the first valve port A and the fourth valve port D of the first reversing valve are both opened and communicated, and the second valve port B and the third valve port C are both closed; the first valve port E and the second valve port F of the second reversing valve are both opened and communicated with each other, and the third valve port G and the fourth valve port H are both opened and communicated with each other.
Further, when the first reversing valve is at 0 °, the first valve port a and the third valve port C of the first reversing valve are both opened and are mutually communicated, and the second valve port B and the fourth valve port D are both closed.
Further, when the first reversing valve rotates 30 ° clockwise, the first valve port a and the fourth valve port D of the first reversing valve are both closed, and the second valve port B and the third valve port C are both opened and are mutually communicated.
Further, when the first reversing valve rotates between 0 and 30 degrees clockwise, the first valve port A, the second valve port B and the third valve port C of the first reversing valve are all opened and communicated, and the fourth valve port D is closed.
Further, when the first reversing valve rotates by 30 degrees anticlockwise, the first valve port A and the fourth valve port D of the first reversing valve are both opened and communicated, and the second valve port B and the third valve port C are both closed.
Further, a filter screen is arranged in the air filtering duct.
Further, the air duct system further comprises a first motor, and the first motor is in driving connection with the first reversing valve.
Further, the air duct system further comprises a second motor, and the second motor is in driving connection with the second reversing valve.
Further, a first mounting hole is formed in the main air duct, and the first reversing valve is mounted in the first mounting hole.
Further, a second mounting hole is formed in the main air duct, and the second reversing valve is mounted in the second mounting hole.
Further, a third mounting hole is formed in the annular branch air duct, the fan is mounted in the third mounting hole, and a fan cover plate is arranged at the third mounting hole.
Further, the annular branch air duct comprises a bending section, and the bending section comprises a groove and an air duct cover plate which is covered on the groove.
Further, the main air duct comprises a bottom plate and a cover body buckled on the bottom plate.
According to another aspect of the present application, there is provided an air conditioner including an air duct system, the air duct system being the air duct system described above.
By applying the technical scheme of the application, as the first reversing valve, the second reversing valve and the fan are arranged in the air duct system, in the actual working process, the opening and the closing of the corresponding valve ports are switched through the first reversing valve and the second reversing valve, so that the air duct system can be switched among a fresh air inlet working mode, an indoor air filtering working mode, an outdoor fresh air inlet and indoor air filtering working mode and a turbid air discharging working mode.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the application. In the drawings:
FIG. 1 schematically illustrates an exploded view of the air duct system of the present application;
FIG. 2 schematically illustrates a perspective view of the air duct system of the present application;
FIG. 3 schematically illustrates a partial view of the air duct system of the present application at a fan location;
fig. 4 is a perspective view schematically showing a cut-away partial structure of the first reversing valve of the present application;
FIG. 5 schematically illustrates a top view of the air duct system of the present application;
fig. 6 schematically shows a front view of the second reversing valve of the application when the first port E and the fourth port H are in communication and the second port F and the third port G are in communication;
fig. 7 schematically illustrates a front view of the second reversing valve of the application when the first port E and the second port F are in communication and the third port G and the fourth port G are in communication;
FIG. 8 schematically illustrates a front view of the air duct system of the present application in a fresh air intake mode of operation;
FIG. 9 schematically illustrates a front view of the air duct system of the present application in an indoor air filtration mode of operation;
FIG. 10 schematically illustrates a front view of the air duct system of the present application in an outdoor fresh air intake + indoor air filtration mode of operation;
fig. 11 schematically illustrates a front view of the air duct system of the present application in an indoor turbid wind removal mode of operation.
Wherein the above figures include the following reference numerals:
10. a main air duct; 11. outdoor air inlet/outlet; 12. an indoor air inlet; 13. indoor air outlet/exhaust port; 14. a separation section; 141. turbid wind exhaust air duct; 142. a wind filtering duct; 143. a partition plate; 15. a third port; 16. a fourth port; 17. a first mounting hole; 18. a second mounting hole; 19. a bottom plate; 110. a cover body; 20. an annular branch air duct; 21. a first port; 22. a second port; 23. a bending section; 24. an air duct cover plate; 25. a third mounting hole; 26. a fan cover plate; 30. a blower; 31. a fan blade; 32. a third motor; 40. a first reversing valve; 50. a second reversing valve; 60. a first motor; 70. a second motor; 80. and (3) a filter screen.
Detailed Description
It should be noted that, without conflict, the embodiments of the present application and features of the embodiments may be combined with each other. The application will be described in detail below with reference to the drawings in connection with embodiments.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the present application. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.
It should be noted that the terms "first," "second," and the like in the description and the claims of the present application and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that embodiments of the application described herein may be capable of being practiced otherwise than as specifically illustrated and described. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
Spatially relative terms, such as "above … …," "above … …," "upper surface at … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial location relative to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "over" other devices or structures would then be oriented "below" or "beneath" the other devices or structures. Thus, the exemplary term "above … …" may include both orientations of "above … …" and "below … …". The device may also be positioned in other different ways (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
Referring to fig. 1 to 11, according to an embodiment of the present application, there is provided an air duct system including a main air duct 10, a circular branch air duct 20, a blower 30, a first reversing valve 40, and a second reversing valve 50.
The first end of the main air duct 10 is provided with an outdoor air inlet/outlet 11 and an indoor air inlet 12, the second end of the main air duct 10 is provided with an indoor air outlet/outlet 13, a separation section 14 is arranged in the main air duct 10, a partition plate 143 is arranged in the separation section 14, and the partition plate 143 separates the main air duct 10 into a turbid air exhaust air duct 141 and a filtered air duct 142; the circular branch air duct 20 has a first port 21 and a second port 22, the first port 21 and the second port 22 are both communicated with the main air duct 10, and the communication position of the circular branch air duct 20 and the main air duct 10 is located between the partition section 14 and the indoor air outlet/outlet 13; the fan 30 is installed in the circular branch air duct 20; the outdoor air inlet/outlet 11, the indoor air inlet 12, the turbid air exhaust air duct 141 and the filtered air duct 142 are all connected with the first reversing valve 40; the first port 21, the second port 22, the third port 15 and the fourth port 16 at the connection position of the main air duct 10 and the circular branch air duct 20 are connected with the second reversing valve 50.
Referring to fig. 8 to 11, the air duct system includes a fresh air intake operation mode, an indoor air filtering operation mode, an outdoor fresh air intake + indoor air filtering operation mode, and a turbid air exhaust operation mode, and the first and second reversing valves 40 and 50 cooperate to control the air duct system to switch between the fresh air intake operation mode, the indoor air filtering operation mode, the outdoor fresh air intake + indoor air filtering operation mode, and the turbid air exhaust operation mode.
Because the air duct system in this embodiment is provided with the first reversing valve 40, the second reversing valve 50 and the fan 30, in the actual working process, the opening and closing of the corresponding valve ports of the air duct system can be switched by the first reversing valve 40 and the second reversing valve 50, so that the air duct system can be switched among the fresh air inlet working mode, the indoor air filtering working mode, the outdoor fresh air inlet+indoor air filtering working mode and the turbid air discharging working mode.
The filter screen 80 is disposed in the air filtering duct 142 in this embodiment, so as to facilitate filtering of air flowing through the air filtering duct 142.
Referring to fig. 4 and 5, the first reversing valve 40 in the present embodiment includes a first valve port a, a second valve port B, a third valve port C, and a fourth valve port D, where the first valve port a is communicated with the outdoor air inlet/outlet 11, the second valve port B is communicated with the indoor air inlet 12, the third valve port C is communicated with the filtered air duct 142, and the fourth valve port D is communicated with the turbid air exhaust duct 141; in the actual working process, the first reversing valve 40 controls the opening and closing of the first valve port A, the second valve port B, the third valve port C and the fourth valve port D to control the air duct system to switch among a fresh air inlet working mode, an indoor air filtering working mode, an outdoor fresh air inlet and indoor air filtering working mode and a turbid air discharging working mode.
Referring to fig. 5 to 7, the second reversing valve 50 in the present embodiment includes a first port E that communicates with the first port 21, a second port F that communicates with the third port 15, a third port F that communicates with the second port 22, a third port G that communicates with the fourth port 16, and a fourth port H; in actual operation, the second reversing valve 50 controls the opening and closing of the first valve port E, the second valve port F, the third valve port G and the fourth valve port H to control the air duct system to switch among a fresh air intake operation mode, an indoor air filtering operation mode, an outdoor fresh air intake+indoor air filtering operation mode and a turbid air exhaust operation mode.
Referring to fig. 1 to 8, when the air duct system in the present embodiment is in the fresh air intake operation mode: the first valve port A and the third valve port C of the first reversing valve 40 are both opened and communicated with each other, and the second valve port B and the fourth valve port D are both closed; the first port E and the fourth port H of the second reversing valve 50 are both open and communicate with each other, and the second port F and the third port G are both open and communicate with each other. At this time, the blower 30 starts to operate, and outdoor air enters from the outdoor air inlet/outlet 11, flows from the first port a to the third port C of the first direction valve 40, enters from the filtered air duct 142 to the second port F of the second direction valve 50, and further enters from the third port G to the circular branch duct 20, and then flows through the first port E and the fourth port H of the second direction valve 50 to enter from the indoor air outlet/outlet 13 of the main duct 10.
Referring to fig. 1 to 7 and 9, when the duct system in the present embodiment is in the indoor air filtering operation mode: the first valve port A and the fourth valve port D of the first reversing valve 40 are closed, and the second valve port B and the third valve port C are opened and communicated with each other; the first port E and the fourth port H of the second reversing valve 50 are both open and communicate with each other, and the second port F and the third port G are both open and communicate with each other. At this time, the fan 30 starts to operate, and the indoor air enters from the indoor air inlet 12, flows from the second port B of the first reversing valve 40 to the third port C, enters from the filtered air duct 142 to the second port F of the second reversing valve 50, enters from the third port G to the circular branch duct 20, and then flows through the first port E and the fourth port H of the second reversing valve 50 to enter from the indoor air outlet 13 of the main duct 10.
Referring to fig. 1 to 7 and 10, when the air duct system in the present embodiment is in the outdoor fresh air intake+indoor air filtration mode of operation: the first valve port A, the second valve port B and the third valve port C of the first reversing valve 40 are all opened and communicated with each other, and the fourth valve port D is closed; the first port E and the fourth port H of the second reversing valve 50 are both open and communicate with each other, and the second port F and the third port G are both open and communicate with each other. At this time, the fan 30 starts to operate, the indoor air enters the second valve port B from the indoor air inlet 12, the outdoor air enters the first valve port a from the outdoor air inlet/outlet 11, and under the action of the negative pressure, enters the filtered air duct 142 from the third valve port C of the first reversing valve 40, then enters the second valve port F of the second reversing valve 50, further enters the annular branch air duct 20 from the third valve port G, and then flows through the first valve port E and the fourth valve port H of the second reversing valve 50, and enters the room from the indoor air outlet/outlet 13 of the main air duct 10.
Referring to fig. 1 to 7 and 11, when the air duct system in the present embodiment is in the indoor turbid wind discharging operation mode: the first valve port A and the fourth valve port D of the first reversing valve 40 are both opened and communicated with each other, and the second valve port B and the third valve port C are both closed; the first port E and the second port F of the second reversing valve 50 are both opened and communicate with each other, and the third port G and the fourth port H are both opened and communicate with each other. At this time, the fan 30 starts to operate, and indoor air enters from the indoor air outlet/outlet 13, flows from the fourth port H of the second reversing valve 50 to the third port G, enters the circular branch duct 20, then flows through the first port E of the second reversing valve 50, enters the turbid air exhaust duct 141 from the second port F, enters the first reversing valve 40, flows from the fourth port D of the first reversing valve 40 to the first port a, and is discharged from the outdoor air inlet/outlet 11. In this operation mode, indoor turbid gas is directly discharged through the turbid wind exhaust air duct 141 without the filter screen 80, and is not filtered by the filter screen 80, thereby prolonging the service life of the filter screen 80.
For convenience of adjustment, when the first directional valve 40 is at 0 °, the first port a and the third port C of the first directional valve 40 are both opened and are mutually communicated, and the second port B and the fourth port D are both closed. When the first reversing valve 40 rotates 30 degrees clockwise, the first valve port A and the fourth valve port D of the first reversing valve 40 are closed, and the second valve port B and the third valve port C are opened and communicated with each other. When the first reversing valve 40 rotates between 0 degrees and 30 degrees clockwise, the first valve port A, the second valve port B and the third valve port C of the first reversing valve 40 are all opened and communicated, and the fourth valve port D is closed. When the first reversing valve 40 rotates by 30 degrees anticlockwise, the first valve port A and the fourth valve port D of the first reversing valve 40 are both opened and communicated, and the second valve port B and the third valve port C are both closed, so that the structure is simple and the regulation is convenient.
Of course, in other embodiments of the present application, the first reversing valve 40 may be reversed in other adjustment manners, and any other modification manners within the concept of the present application are within the scope of the present application.
Referring to fig. 1 again, in order to drive the first reversing valve 40 to reverse, the air duct system in this embodiment further includes a first motor 60, where the first motor 60 is in driving connection with the first reversing valve 40, and the first motor 60 drives the first reversing valve 40 to rotate to reverse, so that the air duct system has a simple structure and is convenient to implement.
Referring again to fig. 1, the air duct system further includes a second motor 70, and the second motor 70 is in driving connection with the second reversing valve 50 to facilitate driving the second reversing valve 50 to reverse direction.
Referring to fig. 1 to 7, for convenience of installation, the main duct 10 in this embodiment is provided with a first installation hole 17, and a first reversing valve 40 is installed in the first installation hole 17. Similarly, the main air duct 10 is provided with a second mounting hole 18, and the second reversing valve 50 is mounted in the second mounting hole 18, so that the second reversing valve 50 can be mounted conveniently.
The annular branch air duct 20 in this embodiment is provided with a third mounting hole 25, a fan 30 is mounted in the third mounting hole 25, and a fan cover plate 26 is disposed at the third mounting hole 25, so that the fan 30 is convenient to mount. The fan 30 in this embodiment is a centrifugal fan, the fan 30 includes a fan blade 31 and a third motor 32, and the fan blade 31 is driven to rotate by the third motor 32 to drive air to flow, so that the structure is simple and implementation is convenient.
In order to avoid the main air duct 10, the annular branch air duct 20 in the embodiment includes a bending section 23, the bending section 23 includes a groove and an air duct cover plate 24 covering the groove, and the air duct cover plate 24 covers the channel forming the bending section 23 on the groove, so that the structure is simple and the processing is convenient.
In order to form the main air duct 10, the main air duct 10 in this embodiment includes a bottom plate 19 and a cover body 110 fastened on the bottom plate 19, and in actual processing, a groove structure may be formed on the bottom plate 19 or the cover body 110, and then the two parts are fastened and assembled together to form the main air duct 10, which has a simple structure and is convenient to implement.
As can be seen from the above embodiments, the working principle of the present application is as follows:
the second reversing valve 50 has two gears, and when in the gear 1, the second valve port F and the third valve port G of the second reversing valve 50 are both opened and communicated with each other, and the first valve port E and the fourth valve port H of the second reversing valve 50 are both opened and communicated with each other; when in gear 2, the first port E and the second port F of the second directional valve 50 are both open and communicate with each other, and the third port G and the fourth port H are both open and communicate with each other.
The first reversing valve 40 has four gears, when the rotation angle of the first reversing valve 40 is 0 degrees and the second reversing valve 50 is positioned at the gear 1, the air duct system is in a fresh air inlet working mode, at the moment, the first valve port A and the third valve port C of the first reversing valve 40 are both opened and communicated with each other, and the second valve port B and the fourth valve port D are both closed; when the clockwise rotation angle of the first reversing valve 40 is 30 degrees and the second reversing valve 50 is positioned at the gear 1, the air duct system is in an indoor air filtering working mode, at the moment, the first valve port A and the fourth valve port D of the first reversing valve 40 are closed, and the second valve port B and the third valve port C are opened and communicated with each other; when the clockwise rotation angle of the first reversing valve 40 is 0-30 degrees and the second reversing valve 50 is positioned at the gear 1, the air duct system is in an outdoor fresh air inlet and indoor air filtering working mode, at the moment, the first valve port A, the second valve port B and the third valve port C of the first reversing valve 40 are all opened and communicated with each other, and the fourth valve port D is closed; when the counterclockwise rotation angle of the first reversing valve 40 is 30 ° and the second reversing valve 50 is in gear 2, the air duct system is in indoor turbid air discharging mode, at this time, the first valve port a and the fourth valve port D of the first reversing valve 40 are both opened and are mutually communicated, and the second valve port B and the third valve port C are both closed.
The filter screen 80 can be installed at the indoor air outlet/outlet 13 in the present application, which filters air in four operation modes, and the service life of the filter screen 80 is shorter than that of the preferred embodiment of the present application.
According to another aspect of the present application, there is provided an air conditioner including an air duct system, which is the air duct system in the above embodiment.
From the above description, it can be seen that the above embodiments of the present application achieve the following technical effects:
the air duct system comprises a main air duct, an annular branch air duct and a fan. The air in fresh air and indoor air circulation is filtered by the filter screen, and the turbid wind is not required to be directly discharged outdoors through the filter screen when the turbid wind is discharged indoors, so that the service life of the filter screen is prolonged, the structure is simple, and the realization is convenient.
The above description is only of the preferred embodiments of the present application and is not intended to limit the present application, but various modifications and variations can be made to the present application by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.
Claims (20)
1. An air duct system, comprising:
the air conditioner comprises a main air duct (10), wherein an outdoor air inlet/outlet (11) and an indoor air inlet (12) are arranged at a first end of the main air duct (10), an indoor air outlet/outlet (13) is arranged at a second end of the main air duct (10), a separation section (14) is arranged in the main air duct (10), a partition plate (143) is arranged in the separation section (14), and the partition plate (143) divides the main air duct (10) into a turbid air exhaust air duct (141) and an air filtering air duct (142);
-a circular branch duct (20), the circular branch duct (20) having a first port (21) and a second port (22), the first port (21) and the second port (22) both communicating with the main duct (10), and the position of communication of the circular branch duct (20) with the main duct (10) being located between the partition section (14) and the indoor outlet/exhaust port (13);
the fan (30) is arranged in the annular branch air duct (20);
the outdoor air inlet/outlet (11), the indoor air inlet (12), the turbid air exhaust air channel (141) and the filtered air channel (142) are all connected with the first reversing valve (40);
the first port (21), the second port (22), the third port (15) and the fourth port (16) at the connection position of the main air duct (10) and the annular branch air duct (20) are connected with the second reversing valve (50);
the air duct system comprises a fresh air inlet working mode, an indoor air filtering working mode, an outdoor fresh air inlet and indoor air filtering working mode and an indoor turbid air discharging working mode, wherein the first reversing valve (40) and the second reversing valve (50) are used for respectively switching the opening and closing of corresponding valve ports, so that the first reversing valve (40) and the second reversing valve (50) are used together to control the air duct system to be switched among the fresh air inlet working mode, the indoor air filtering working mode, the outdoor fresh air inlet and indoor air filtering working mode and the indoor turbid air discharging working mode.
2. The air duct system according to claim 1, wherein the first reversing valve (40) comprises a first valve port a, a second valve port B, a third valve port C and a fourth valve port D, wherein the first valve port a is in communication with the outdoor intake/exhaust port (11), the second valve port B is in communication with the indoor intake port (12), the third valve port C is in communication with the filtered air duct (142), and the fourth valve port D is in communication with the turbid air exhaust air duct (141);
the first reversing valve (40) controls the opening and closing of the first valve port A, the second valve port B, the third valve port C and the fourth valve port D so as to control the air duct system to switch among the fresh air inlet working mode, the indoor air filtering working mode, the outdoor fresh air inlet and indoor air filtering working mode and the indoor turbid air discharging working mode.
3. The air duct system according to claim 2, wherein the second reversing valve (50) comprises a first valve port E, a second valve port F, a third valve port G and a fourth valve port H, wherein the first valve port E communicates with the first port (21), the second valve port F communicates with the third port (15), the third valve port G communicates with the second port (22) and the fourth valve port H communicates with the fourth port (16);
the second reversing valve (50) controls the opening and closing of the first valve port E, the second valve port F, the third valve port G and the fourth valve port H so as to control the air duct system to switch among the fresh air inlet working mode, the indoor air filtering working mode, the outdoor fresh air inlet and indoor air filtering working mode and the indoor turbid air discharging working mode.
4. The air duct system of claim 3, wherein when the air duct system is in the fresh air intake mode of operation:
the first valve port A and the third valve port C of the first reversing valve (40) are both opened and communicated with each other, and the second valve port B and the fourth valve port D are both closed;
the first valve port E and the fourth valve port H of the second reversing valve (50) are both opened and communicated with each other, and the second valve port F and the third valve port G are both opened and communicated with each other.
5. The air duct system of claim 3, wherein when the air duct system is in the indoor air filtration mode of operation:
the first valve port A and the fourth valve port D of the first reversing valve (40) are closed, and the second valve port B and the third valve port C are opened and communicated with each other;
the first valve port E and the fourth valve port H of the second reversing valve (50) are both opened and communicated with each other, and the second valve port F and the third valve port G are both opened and communicated with each other.
6. The air duct system of claim 3, wherein when the air duct system is in the outdoor fresh air intake + indoor air filtration mode of operation:
the first valve port A, the second valve port B and the third valve port C of the first reversing valve (40) are all opened and communicated with each other, and the fourth valve port D is closed;
the first valve port E and the fourth valve port H of the second reversing valve (50) are both opened and communicated with each other, and the second valve port F and the third valve port G are both opened and communicated with each other.
7. The air duct system of claim 3, wherein when the air duct system is in the indoor turbid wind operation mode:
the first valve port A and the fourth valve port D of the first reversing valve (40) are both opened and communicated with each other, and the second valve port B and the third valve port C are both closed;
the first valve port E and the second valve port F of the second reversing valve (50) are both opened and communicated with each other, and the third valve port G and the fourth valve port H are both opened and communicated with each other.
8. The air duct system according to claim 2, wherein when the first reversing valve (40) is at 0 °, the first port a and the third port C of the first reversing valve (40) are both open and in communication with each other, and the second port B and the fourth port D are both closed.
9. The air duct system according to claim 2, wherein the first reversing valve (40) is rotated 30 ° clockwise, the first port a and the fourth port D of the first reversing valve (40) are both closed, and the second port B and the third port C are both open and communicate with each other.
10. The air duct system according to claim 2, wherein the first port a, the second port B and the third port C of the first reversing valve (40) are all open and communicate with each other and the fourth port D is closed when the first reversing valve (40) is rotated between 0 ° and 30 ° clockwise.
11. The air duct system according to claim 2, wherein the first reversing valve (40) is rotated 30 ° counterclockwise, the first port a and the fourth port D of the first reversing valve (40) are both opened and communicate with each other, and the second port B and the third port C are both closed.
12. The air duct system of any of claims 1-11, wherein a filter screen (80) is disposed within the filtered air duct (142).
13. The air duct system according to any one of claims 1 to 11, further comprising a first motor (60), the first motor (60) being in driving connection with the first reversing valve (40).
14. The air duct system according to any one of claims 1 to 11, further comprising a second motor (70), the second motor (70) being in driving connection with the second reversing valve (50).
15. Wind tunnel system according to any of claims 1-11, characterised in that the main wind tunnel (10) is provided with a first mounting hole (17), the first reversing valve (40) being mounted in the first mounting hole (17).
16. Wind tunnel system according to any of claims 1-11, characterised in that a second mounting hole (18) is provided on the main wind tunnel (10), the second reversing valve (50) being mounted in the second mounting hole (18).
17. Wind tunnel system according to any of claims 1-11, characterised in that a third mounting hole (25) is provided in the circular branch wind tunnel (20), in which third mounting hole (25) the fan (30) is mounted, at which third mounting hole (25) a fan cover plate (26) is provided.
18. The air duct system according to any one of claims 1 to 11, wherein the annular branch air duct (20) comprises a bent section (23), the bent section (23) comprising a groove and an air duct cover plate (24) covering the groove.
19. Wind tunnel system according to any of claims 1 to 11, characterised in that the main wind tunnel (10) comprises a floor (19) and a cover (110) fastened to the floor (19).
20. An air conditioner comprising an air duct system, wherein the air duct system is the air duct system of any one of claims 1 to 19.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810925593.0A CN108895642B (en) | 2018-08-15 | 2018-08-15 | Air duct system and air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810925593.0A CN108895642B (en) | 2018-08-15 | 2018-08-15 | Air duct system and air conditioner |
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| Publication Number | Publication Date |
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| CN108895642A CN108895642A (en) | 2018-11-27 |
| CN108895642B true CN108895642B (en) | 2023-10-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810925593.0A Active CN108895642B (en) | 2018-08-15 | 2018-08-15 | Air duct system and air conditioner |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115751460A (en) * | 2022-12-06 | 2023-03-07 | 珠海格力电器股份有限公司 | Fresh air conditioner and control method thereof |
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