CN112007451B - Air purifying device - Google Patents
Air purifying device Download PDFInfo
- Publication number
- CN112007451B CN112007451B CN201910472594.9A CN201910472594A CN112007451B CN 112007451 B CN112007451 B CN 112007451B CN 201910472594 A CN201910472594 A CN 201910472594A CN 112007451 B CN112007451 B CN 112007451B
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- China
- Prior art keywords
- air
- filter screen
- screen cylinder
- space
- filter
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 238000004140 cleaning Methods 0.000 claims description 21
- 238000004887 air purification Methods 0.000 claims description 14
- 238000007789 sealing Methods 0.000 claims description 4
- 238000001914 filtration Methods 0.000 description 10
- 230000004048 modification Effects 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- 239000000428 dust Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/0052—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with filtering elements moving during filtering operation
- B01D46/0054—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with filtering elements moving during filtering operation with translational movement
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/24—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies
- B01D46/2403—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies characterised by the physical shape or structure of the filtering element
- B01D46/2411—Filter cartridges
Abstract
In the air purifying device, one side of the filter screen cylinder is a windward space, the other side of the filter screen cylinder is a leeward space, and the center of the second end of the filter screen cylinder is close to the windward space and is a distance away from the central axis of the first end of the filter screen cylinder; the filter screen cylinder is inclined towards the windward space; when the air purifying device is used, air passes through the side wall of the filter screen cylinder close to one side of the windward space, enters the inner cavity of the filter screen cylinder and flows out from the air flow outlet at the second end; since the area of the side surface of the filter screen cylinder close to the windward space is increased, the effective utilization area of the filter can be increased, so that the filter can be fully utilized.
Description
Technical Field
The present invention relates to an air purifying device for purifying indoor air.
Background
In order to cope with the poor air quality, air purifying devices are increasingly used in indoor environments so that people can enjoy clean and safe air, and in the air purifying devices, an air filter is generally required, and air enters the air purifying device from an air inlet and passes through a filter screen of the air filter to be purified. When the air filter filters air, most of the air passes through the filter screen from one side of the air filter and is purified, so that a part of the filter screen of the air filter receives more air, a larger area is needed for filtering the air, and the other part of the filter screen receives less air, and the air filter can meet the requirement of use without a large area. However, the prior art air filters generally have substantially the same filter area on different sides, which results in that the filter screens of the air filters are not adequately and effectively utilized.
Disclosure of Invention
In view of the above-described drawbacks of the related art, an object of the present invention is to provide an air cleaning device and an air filter that can increase the effective use area of the filter so that the filter can be fully utilized.
In order to achieve the above object, the present invention provides an air filtering device, which adopts the following technical scheme: an air purification device comprises an air purification cavity, wherein an air filter is arranged in the air purification cavity, the air filter comprises a filter screen cylinder, the filter screen cylinder is provided with an inner cavity, the filter screen cylinder is provided with a first end and a second end, and the second end of the filter screen cylinder is provided with an air flow outlet;
one side of the central axis of the first end of the filter screen cylinder is a windward side, the other side of the central axis of the first end of the filter screen cylinder is a leeward side, the space on one side of the filter screen cylinder is a windward space, and the space on the other side of the filter screen cylinder is a leeward space; the center of the second end of the filter screen cylinder is close to the windward space and is a distance away from the central axis of the first end of the filter screen cylinder;
when filtering air, the air passes through the side wall of the filter screen cylinder near the windward space side, enters the inner cavity of the filter screen cylinder and flows out from the airflow outlet at the second end.
Preferably, the first end and the second end of the filter screen cylinder are both circular; the edge of the second end of the filter screen cylinder comprises a windward circular arc close to a windward space and a leeward circular arc close to a leeward space, the distance between the midpoint of the windward circular arc and the central axis of the first end of the filter screen cylinder is d1, and the distance between the midpoint of the leeward circular arc and the central axis of the first end of the filter screen cylinder is d2, wherein d1 is more than d2.
More preferably, the edge of the first end of the filter screen cylinder comprises a first semicircular arc close to the windward space and a second semicircular arc close to the leeward space, and the length of a connecting line between the midpoint of the first semicircular arc and the midpoint of the windward arc is larger than the length of a generating line of the rest part of the filter screen cylinder.
Preferably, the first end diameter of the screen cylinder is smaller than the second end diameter.
Preferably, the first end of the filter screen cylinder is plugged.
Preferably, the first end of the filter screen cylinder is connected with a circular sealing plate, the second end of the filter screen cylinder is connected with a circular end plate, and an inner hole of the circular end plate is the airflow outlet.
Preferably, a PM2.5 filter screen is arranged in the side wall of the filter screen cylinder.
Preferably, one end of the air purifying cavity is an air inlet end, and the other end is an air outlet end; the first end of the filter screen cylinder faces the air inlet end, and the second end of the filter screen cylinder faces the air outlet end; the air purification device is provided with an air inlet, an air inlet and a control unit, wherein the air inlet is positioned near the air inlet end and is positioned in a windward space.
More preferably, the air inlet end of the air purifying cavity is provided with an air flow distributing body, and the air inlet is arranged on the air flow distributing body and comprises a fresh air inlet for sucking outdoor air and a circulating air inlet for sucking indoor air.
Further, a coarse filter screen is arranged at the top of the airflow distribution body, and outdoor air flows into the air purification cavity from the fresh air inlet through the coarse filter screen.
Further, the air flow distributor is also provided with a positioning clamping groove, and the air filter is provided with a positioning clamping edge matched with the clamping groove.
Furthermore, the air flow distributor is provided with an elastic clamping block, and the air filter is provided with a fixing clamping groove matched with the elastic clamping block.
Further, the air outlet end of the air purification cavity is connected with an air supply air cavity, the air flow outlet is communicated with the air supply air cavity, an air supply fan is arranged in the air supply air cavity, and the air supply air cavity is provided with an air supply opening communicated with the indoor space.
As described above, the air purifying device according to the present invention has the following advantageous effects: in the air purifying device, one side of the filter screen cylinder is a windward space, and the other side of the filter screen cylinder is a leeward space, and the center of the second end of the filter screen cylinder is close to the windward space and is a distance away from the central axis of the first end of the filter screen cylinder; the filter screen cylinder is inclined towards the windward space; when the air purifying device is used, air passes through the side wall of the filter screen cylinder close to one side of the windward space, enters the inner cavity of the filter screen cylinder and flows out from the air flow outlet at the second end; since the area of the side surface of the filter screen cylinder close to the windward space is increased, the effective utilization area of the filter can be increased, so that the filter can be fully utilized.
Drawings
Fig. 1a shows a schematic perspective view of an air filter, as seen from near the first end of the screen cylinder.
Fig. 1b shows a schematic perspective view of an air filter, as seen from near the second end of the screen cylinder.
Fig. 1c shows a schematic cross-sectional structure of an air filter.
Fig. 2a shows a schematic perspective view of an air flow distributor.
Fig. 2b shows a schematic perspective view of the assembly of the air distributor with the air filter.
Fig. 2c shows a top view of the assembled structure of fig. 2b, as seen from the second end of the screen cylinder.
Fig. 2d shows a schematic structure of the air flow distributor, the air filter, the housing of the air supply chamber and the air supply fan.
Fig. 3a is a schematic view of an air purifying device according to the present invention, and a part of the housing and other structures are not shown.
Fig. 3b shows a schematic view of the structure of an air cleaning device according to the invention from another angle, part of the housing and other structures not being shown.
Fig. 4 is a schematic view showing the outline structure of an air cleaning apparatus according to the present invention.
Description of element reference numerals
1. Air supply air cavity
11. Air supply fan
12. Air supply port
2. Air purifying cavity
21. Air filter
211. Filter screen cylinder
2111. Inner cavity
2112. First end
2112a first semicircle
2112b second semi-circular arc
2112c central axis
2113. Second end
2113a windward arc
2113b leeward arc
2114. Air flow outlet
2115. Windward side
2116. Leeward surface
2117a busbar
2117b busbar
212. Round sealing plate
2121. Positioning clamping edge
2122. Fixing clamping groove
213. Annular end plate
22. Air inlet end
23. Air outlet end
24. Windward space
25. Leeward space
3. Airflow distributor
31. Fresh air inlet
32. Circulating air inlet
33. Positioning clamping groove
34. Elastic clamping block
35. Coarse filter screen
4. Outer casing
Detailed Description
Further advantages and effects of the present invention will become apparent to those skilled in the art from the disclosure of the present invention, which is described by the following specific examples.
It should be understood that the structures, proportions, sizes, etc. shown in the drawings are for illustration purposes only and should not be construed as limiting the invention to the extent that it can be practiced, since modifications, changes in the proportions, or otherwise, used in the practice of the invention, are not intended to be critical to the essential characteristics of the invention, but are intended to fall within the spirit and scope of the invention. Also, the terms such as "upper," "lower," "left," "right," "middle," and "a" and the like recited in the present specification are merely for descriptive purposes and are not intended to limit the scope of the invention, but are intended to provide relative positional changes or modifications without materially altering the technical context in which the invention may be practiced.
As shown in fig. 1a, 1b and 1c, the present invention provides an air purifying apparatus, which comprises an air purifying cavity 2, wherein an air filter 21 is arranged in the air purifying cavity 2, the air filter 21 comprises a filter screen cylinder 211, the filter screen cylinder 211 is provided with an inner cavity 2111, the filter screen cylinder 211 is provided with a first end 2112 and a second end 2113, and the second end 2113 of the filter screen cylinder 211 is provided with an air flow outlet 2114;
the central axis 2112c of the first end 2112 of the filter cylinder 211 is on the windward side (windward side refers to the plane of the diameter EF of the first end 2112 and the diameter CD of the second end 2113 of the filter cylinder 211 as shown in fig. 1c and 2 c), the windward side is on the side closer to the position where the airflow flows in, the leeward side is on the leeward side (leeward side refers to the plane of the diameter EF of the first end 2112 and the diameter CD of the second end 2113 of the filter cylinder 211 as shown in fig. 1c and 2c, the leeward side is on the side farther from the position where the airflow flows in, the windward space 24 is on the space on the side of the filter cylinder 211, and the leeward space 25 is on the space on the other side of the filter cylinder 211; the center O' of the second end 2113 of the filter screen cylinder 211 is adjacent to the windward space 24 and is spaced from the central axis 2112c of the first end 2112 of the filter screen cylinder 211;
when filtering air, air enters the interior cavity 2111 of the filter screen cylinder 211 through the side wall of the filter screen cylinder 211 near the windward space 24 and flows out of the airflow outlet 2114 of the second end 2113.
Referring to fig. 1c and 2d, in use of an air cleaning device of the present invention, air enters the interior cavity 2111 of the filter screen cylinder 211 through the side wall of the filter screen cylinder 211 near the windward space 24 and flows out of the airflow outlet 2114 of the second end 2113; because one side of the central axis 2112c of the first end 2112 of the filter screen cylinder 211 is the windward side, the other side is the leeward side, the space on one side of the filter screen cylinder 211 is the windward space 24, and the space on the other side of the filter screen cylinder 211 is the leeward space 25; the center of the second end 2113 of the filter screen cylinder 211 is close to the windward space 24 and is away from the central axis 2112c of the first end 2112 of the filter screen cylinder 211 by a distance, the filter screen cylinder 211 is inclined towards the windward space 24 and away from the leeward space 25, so that the area of the filter screen cylinder 211 towards the windward space 24 is increased, the effective utilization area of the air filter 21 can be increased, the air filter 21 is fully utilized, the filtering efficiency is improved, the shorter air filter 21 can have higher filtering efficiency, the size of the filter is not increased for improving the filtering efficiency, and the whole volume is reduced.
As shown in fig. 1c and 2d, the side wall of the filter screen cylinder 211 facing the windward space 24 is a windward surface 2115, the side wall of the filter screen cylinder 211 facing the leeward space 25 is a leeward surface 2116, the windward surface 2115 faces the direction of the air flow, and the windward surface 2115 is nearest to the position where the air flow enters, so that most of the air flow enters the inner cavity 2111 of the filter screen cylinder 211 from the windward surface 2115, and the second end 2113 of the filter screen cylinder 211 is inclined toward the windward space 24, so that the area of the windward surface 2115 of the filter screen cylinder 211 is increased, thereby increasing the filtering area of the filter screen cylinder 211, and the filter screen cylinder 211 can be fully utilized. As shown in fig. 1c and 2d, the leeward surface 2116 is far from the position where the air flow enters, so that the air flow entering the inner cavity 2111 of the filter screen cylinder 211 from the leeward surface 2116 is less, therefore, the area of the leeward surface 2116 is smaller than the area of the windward surface 2115, and the area of the leeward surface 2116 is not required to be large, so that the use can be satisfied.
Referring to fig. 1a, 1b and 1c, the first end 2112 and the second end 2113 of the filter cylinder 211 are circular; as shown in fig. 1c and 2c, the first end 2112 and the second end 2113 of the filter screen cylinder 211 are not coaxially disposed, and the diameter of the first end 2112 of the filter screen cylinder 211 is smaller than the diameter of the second end 2113, and the center of the second end 2113 of the filter screen cylinder 211 is biased towards the windward side 2115. As shown in fig. 2C, the edge of the second end 2113 of the filter screen cylinder 211 includes a windward circular arc 2113a near the windward space 24 and a leeward circular arc 2113B near the leeward space 25, the boundary point between the windward circular arc 2113a and the leeward circular arc 2113B is point C and point D, the midpoint of the windward circular arc 2113a is point B, the midpoint of the leeward circular arc 2113B is point a, the point O in fig. 2C is the center of the first end 2112 of the filter screen cylinder 211, the central axis 2112C of the first end 2112 of the filter screen cylinder 211 passes through the point O, the distance between the midpoint a of the leeward circular arc 2113B and the central axis 2112C of the first end 2112 of the filter screen cylinder 211 is D1, the distance between the midpoint B of the windward circular arc 2113a and the central axis 2112C of the first end 2112 of the filter screen cylinder 211 is D2, D2> D1, and as D2> D1, the second end 2113 of the filter screen cylinder 211 is inclined toward the windward space 24, so that the area of the windward surface 2115 of the filter screen cylinder 211 is larger. As shown in fig. 1c, the line O O 'is defined between the center O of the first end 2112 and the center O' of the second end 2113 of the screen cylinder 211, the line O O 'is angled with respect to the central axis 2112c of the first end 2112 of the screen cylinder 211 and is inclined toward the windward space 24, and the line O O' is within the plane of the diameters EF and CD of the first end 2112 and the second end 2113 of the screen cylinder 211.
As shown in fig. 1a, fig. 1B, and fig. 1c, the filter screen cylinder 211 is in an inclined truncated cone shape, the edge of the first end 2112 of the filter screen cylinder 211 includes a first semicircular arc 2112a close to the windward space 24 and a second semicircular arc 2112B close to the leeward space 25, the boundary points of the first semicircular arc 2112a and the second semicircular arc 2112B are points E and F, please refer to fig. 2c and fig. 2d, the line GB between the midpoint G of the first semicircular arc 2112a and the midpoint B of the windward arc 2113a is a bus bar of the truncated cone of the filter screen cylinder 211 (for the filter screen cylinder 211, the line intersecting the line between any plane where the line between the center of the first end 2112 and the center of the second end 2113 of the filter screen cylinder 211 and the outer sidewall of the filter screen cylinder 211 is a bus bar), and the length of the bus bar GB is greater than the length of the bus bar of the rest of the filter screen cylinder 211.
In an air purifying apparatus according to the present invention, when the filter screen cylinder 211 filters an air flow, the air flow passes through the filter screen cylinder 211 from the windward side 2115 of the filter screen cylinder 211 and flows out from the air flow outlet 2114 of the second end 2113 of the filter screen cylinder 211, the first end 2112 of the filter screen cylinder 211 may be plugged, the second end 2113 of the filter screen cylinder 211 has the air flow outlet 2114, as shown in fig. 1a, 1b and 1c, the first end 2112 of the filter screen cylinder 211 is connected with a circular sealing plate 212, the second end 2113 of the filter screen cylinder 211 is connected with a circular end plate 213, and the inner hole of the circular end plate 213 is the air flow outlet 2114. When the air purifying device is used for filtering air, air flows from the windward side 2115 of the filter screen cylinder 211, passes through the side wall of the filter screen cylinder 211 and enters the inner cavity 2111 of the filter screen cylinder 211, and flows out from the air flow outlet 2114, and the air flows through the side wall of the filter screen cylinder 211 to be filtered and purified, and the filter purifying structures such as a PM2.5 filter screen, an active carbon filter screen, a coarse effect filter screen and the like are arranged in the side wall of the filter screen cylinder 211 from inside to outside, so that harmful substances such as dust in the air can be effectively removed, and the air is purified.
Referring to fig. 2d, 3a and 3b, an air filter 21 is disposed in an air purifying chamber 2 of an air purifying device according to the present invention, one end of the air purifying chamber 2 is an air inlet end 22, and the other end is an air outlet end 23; the first end 2112 of the filter screen cylinder 211 is oriented toward the inlet end 22 and the second end 2113 of the filter screen cylinder 211 is oriented toward the outlet end 23; the air cleaning device has air inlets 31, 32, the air inlets 31, 32 being located near the air inlet end 22, the air inlets 31, 32 being located in the windward space 24.
After the air flow enters the air purification chamber 2 from the air inlets 31, 32, most of the air flow flows directly into the windward space 24 nearest to the air inlets 31, 32 and from the windward side 2115 through the side wall of the filter screen cylinder 211 into the inner cavity 2111 of the filter screen cylinder 211, and the rest of the air flow is dispersed in the air purification chamber 2 to the leeward space and from the leeward side 2116 of the filter screen cylinder 211 and through the side wall of the filter screen cylinder 211 into the inner cavity 2111 of the filter screen cylinder 211. In addition, referring to fig. 2d, because the second end 2113 of the filter screen cylinder 211 is inclined toward the windward space 24 and the first end 2112 of the filter screen cylinder 211 is inclined toward the leeward space 25, the windward space 24 of the air purifying chamber 2 is larger, which is beneficial for the air flow to flow into the air purifying chamber 2 more quickly and to flow through the filter screen cylinder 211, and for improving the working efficiency of the air purifying device.
Referring to fig. 2d, 3a and 3b, as a preferred embodiment of an air cleaning apparatus of the present invention, an air inlet end 22 of the air cleaning chamber 2 is provided with an air flow distributor 3, and the air inlet is provided on the air flow distributor 3, and as shown in fig. 2b, the air inlets 31, 32 include a fresh air inlet 31 for sucking outdoor air and a circulated air inlet 32 for sucking indoor air; the fresh air inlet 31 is used for sucking air in an outdoor space, the air in the outdoor space enters the air purifying cavity 2 from the fresh air inlet 31 and is purified by the air filter 21, more dust possibly exists in the air in the outdoor space, the top of the airflow distributor 3 is provided with the coarse filter screen 35, the outdoor air flows into the air purifying cavity 2 from the fresh air inlet 31 through the coarse filter screen 35, and the coarse filter screen 35 can remove dust in the air; the circulating air inlet 32 is used to suck air in the indoor space, and the air in the indoor space enters the air cleaning chamber 2 from the circulating air inlet 32 and is filtered and cleaned by the air filter 21.
Referring to fig. 3a and 3b, in order to facilitate the installation of the air filter 21, as shown in fig. 2b, the first end 2112 of the air filter 21 may be connected to the air distributor 3, as shown in fig. 1a and 2a, the air distributor 3 is further provided with a positioning slot 2121 matching with the slot, when the air filter 21 is installed, the positioning slot 2121 on the air filter 21 is aligned with the positioning slot 33 on the air distributor 3, and the positioning slot 2121 is snapped into the positioning slot 33, so that the air filter 21 and the air distributor 3 can be accurately positioned, and in order to facilitate the fixing of the air filter 21 and the air distributor 3, as shown in fig. 1a and 2a, the air distributor 3 is provided with an elastic clip 34, and the air filter 21 is provided with a fixing slot 2122 matching with the elastic clip 34, after the positioning slot 2121 is snapped into the positioning slot 21233, the elastic clip 2122 is snapped into the fixing slot 2122.
As a preferred embodiment, as shown in fig. 2d, 3a and 3b, the air outlet end 23 of the air purifying chamber 2 is connected with the air supply chamber 1, the air outlet 2114 is communicated with the air supply chamber 1, the air supply chamber 1 is provided with an air supply fan 11, and the air supply chamber 1 is provided with an air supply port 12 communicated with the indoor space. An air cleaning apparatus according to the present invention is capable of performing an internal circulation operation mode and a fresh air introduction operation mode by driving the air supply fan 11, and in the internal circulation operation mode, as shown in fig. 3a, the air flow paths are RA to SA (arrows between RA to SA indicate the direction of the air flow), and the indoor air can enter the air cleaning chamber 2 from the circulating air inlet 32, enter the air supply chamber 1 from the air outlet 2114 after being cleaned by the air filter 21, and then return to the indoor space from the air supply port 12. In the fresh air supply mode, the air flow path is OA to SA (arrows between OA and SA indicate the air flow direction), and the outdoor air can enter the air cleaning chamber 2 from the fresh air inlet 31, and after being cleaned by the air filter 21, enter the supply air chamber 1 from the air outlet 2114, and then enter the indoor space from the supply air outlet 12. Of course, the air purifying device can also simultaneously perform an internal circulation working mode and a fresh air introducing working mode.
As shown in fig. 4, the outline structure of the air purifying device of the present invention is schematically shown, the air supply chamber 1, the air purifying chamber 2 and the air flow distributor 3 are all covered in the housing, the circulating air inlet 32, the air supply port 12 and the fresh air inlet 31 are exposed outside the housing, the circulating air inlet 32 and the air supply port 12 are provided with air grids, and the overall outline of the air purifying device is in a columnar structure, and has a beautiful appearance and a neat structure.
Based on the technical scheme of the embodiment, the air purifying device can increase the filtering area for effective use, so that the filter is fully utilized, and the whole volume is reduced.
In summary, the present invention effectively overcomes the disadvantages of the prior art and has high industrial utility value.
The above embodiments are merely illustrative of the principles of the present invention and its effectiveness, and are not intended to limit the invention. Modifications and variations may be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the invention. Accordingly, it is intended that all equivalent modifications and variations of the invention be covered by the claims, which are within the ordinary skill of the art, be within the spirit and scope of the present disclosure.
Claims (11)
1. An air purification device, characterized in that: the air purification device comprises a columnar shell, wherein an air supply air cavity (1), an air purification cavity (2) and an air flow distribution body (3) are sequentially arranged in the columnar shell, one end of the air purification cavity (2) is an air inlet end (22), the other end of the air purification cavity is an air outlet end (23), the air inlet end (22) is connected with the air flow distribution body (3), and the air outlet end (23) is connected with the air supply air cavity (1);
an air filter (21) is arranged in the air purifying cavity (2), the air filter (21) comprises a filter screen cylinder (211), the filter screen cylinder (211) is provided with an inner cavity (2111), the filter screen cylinder (211) is provided with a first end (2112) and a second end (2113), the first end (2112) faces towards the air inlet end (22), the second end (2113) faces towards the air outlet end (23), the second end (2113) of the filter screen cylinder (211) is provided with an air flow outlet (2114), and the air flow outlet (2114) is communicated with the air supplying cavity (1);
one side of a central axis (2112 c) of a first end (2112) of the filter screen cylinder (211) is a windward side, the other side is a leeward side, a space on one side of the filter screen cylinder (211) is a windward space (24), and a space on the other side of the filter screen cylinder (211) is a leeward space (25); the center of the second end (2113) of the filter screen cylinder (211) is close to the windward space (24) and is at a distance from the central axis (2112 c) of the first end (2112) of the filter screen cylinder (211);
the side wall of the airflow distribution body (3) is provided with a fresh air inlet (31) for sucking outdoor air and a circulating air inlet (32) for sucking indoor air, the fresh air inlet (31) and the circulating air inlet (32) are exposed out of the shell, and when air is filtered, air sucked by the fresh air inlet (31) and/or the circulating air inlet (32) flows into the windward space (24) along the direction of the central axis (2112 c) of the first end (2112) of the filter screen cylinder (211) from the air inlet end (22), and then flows into the inner cavity (2111) of the filter screen cylinder (211) through the side wall of the filter screen cylinder (211) close to the windward space (24) and flows into the air supply cavity (1) from the airflow outlet (2114) of the second end (2113);
the air filter (21) is clamped and fixed at the top of the airflow distribution body (3).
2. An air cleaning apparatus according to claim 1, wherein: the first end (2112) and the second end (2113) of the filter screen cylinder (211) are both circular; the edge of the second end (2113) of the filter screen cylinder (211) comprises a windward circular arc (2113 a) close to a windward space (24) and a leeward circular arc (2113 b) close to a leeward space (25), the distance between the midpoint of the windward circular arc (2113 a) and the central axis (2112 c) of the first end (2112) of the filter screen cylinder (211) is d1, and the distance between the midpoint of the leeward circular arc (2113 b) and the central axis (2112 c) of the first end (2112) of the filter screen cylinder (211) is d2, d1> d2.
3. An air cleaning apparatus according to claim 2, wherein: the filter screen cylinder (211) is in an inclined round table shape, and the edge of the first end (2112) of the filter screen cylinder (211) comprises a first semicircular arc (2112 a) close to a windward space (24) and a second semicircular arc (2112 b) close to a leeward space (25), wherein the length of a connecting line between the midpoint of the first semicircular arc (2112 a) and the midpoint of the windward arc (2113 a) is larger than the length of a bus bar of the rest part of the filter screen cylinder (211).
4. An air cleaning apparatus according to claim 1, wherein: the filter mesh cylinder (211) has a first end (2112) diameter that is smaller than a second end (2113) diameter.
5. An air cleaning apparatus according to claim 1, wherein: the first end (2112) of the filter screen cylinder (211) is plugged.
6. An air cleaning apparatus according to claim 1, wherein: a first end (2112) of the filter screen cylinder (211) is connected with a circular sealing plate (212), a second end (2113) of the filter screen cylinder (211) is connected with a circular end plate (213), and an inner hole of the circular end plate (213) is the airflow outlet (2114).
7. An air cleaning apparatus according to claim 1, wherein: PM2.5 filter screens are arranged in the side walls of the filter screen cylinders (211).
8. An air cleaning apparatus according to claim 1, wherein: the top of the airflow distribution body (3) is provided with a coarse filter screen (35), and outdoor air flows into the air purification cavity (2) from the fresh air inlet (31) through the coarse filter screen (35).
9. An air cleaning apparatus according to claim 1, wherein: the air flow distributor (3) is also provided with a positioning clamping groove (33), and the air filter (21) is provided with a positioning clamping edge (2121) matched with the clamping groove.
10. An air cleaning apparatus according to claim 9, wherein: an elastic clamping block (34) is arranged on the air flow distribution body (3), and a fixing clamping groove (2122) matched with the elastic clamping block (34) is arranged on the air filter (21).
11. An air cleaning apparatus according to claim 1, wherein: an air supply fan (11) is arranged in the air supply air cavity (1), and the air supply air cavity (1) is provided with an air supply opening (12) communicated with the indoor space.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910472594.9A CN112007451B (en) | 2019-05-31 | 2019-05-31 | Air purifying device |
| JP2021504054A JP7219409B2 (en) | 2019-03-01 | 2020-02-28 | Air purification and ventilation equipment |
| PCT/JP2020/008391 WO2020179687A1 (en) | 2019-03-01 | 2020-02-28 | Air cleaning and ventilation device |
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| CN112007451B true CN112007451B (en) | 2024-03-29 |
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| CN112007451A (en) | 2020-12-01 |
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