CN109707644B - Axial flow motor and air treatment device with same - Google Patents
Axial flow motor and air treatment device with same Download PDFInfo
- Publication number
- CN109707644B CN109707644B CN201910107345.XA CN201910107345A CN109707644B CN 109707644 B CN109707644 B CN 109707644B CN 201910107345 A CN201910107345 A CN 201910107345A CN 109707644 B CN109707644 B CN 109707644B
- Authority
- CN
- China
- Prior art keywords
- plane
- axial flow
- flow fan
- blade
- edge
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 230000007306 turnover Effects 0.000 claims description 7
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 239000000463 material Substances 0.000 description 3
- 230000017525 heat dissipation Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Abstract
The invention discloses an axial flow motor and an air treatment device with the same. The axial flow fan comprises a middle disc, a hub and blades. The surface of one side of the middle disc in the direction of the rotation axis is a first plane, the hub is provided with a second plane, the blade comprises a main body part and a blade root, the outer contour edge of the main body part comprises a front edge, an outer edge and a tail edge which are sequentially connected, the tail edge comprises a parallel section, the parallel section is parallel to at least one of the first plane and the second plane, the two ends of the blade in the direction of the rotation axis are a first end and a second end, and the first end is formed by the parallel section. According to the axial flow fan provided by the invention, the parallel section is arranged on the tail edge and is parallel to at least one of the first plane and the second plane, when the blade is placed at the position for accommodating the axial flow fan, the collision or friction between the blade and the surface at the placed position can be reduced, so that the blade can be protected, and the production yield of the axial flow fan can be improved.
Description
Technical Field
The invention relates to the field of household appliances, in particular to an axial flow motor and an air treatment device with the same.
Background
The axial flow wind wheel is widely applied to air treatment devices and various ventilation and heat dissipation environments due to large air quantity, low noise and low pressure, the design quality of the axial flow wind wheel has great influence on the efficiency and noise of a fan, and the requirements on the efficiency of the fan for heat dissipation are higher along with the improvement of the national energy efficiency of an air conditioner, and the noise of the wind wheel is low and the efficiency is high. The axial flow wind wheel is a key part in the air conditioner outdoor unit, the performance of the axial flow wind wheel has great influence on the performance of the air conditioner, meanwhile, the axial flow wind wheel is matched with the motor for use, the influence on the efficiency of the whole fan is also great, the optimal working rotating speed of the motor and the load capacity of the motor are required to be fully considered, and the designed axial flow fan efficiency can be better. The design of the existing wind wheel is easy to rub with the ground when the blades are produced and placed, so that the blades are damaged.
Disclosure of Invention
The present invention aims to solve at least one of the technical problems existing in the prior art. Therefore, an object of the present invention is to provide an axial flow fan having the advantages of simple structure and long service life of the blades.
The invention also provides an air treatment device, which is provided with the axial flow fan.
An axial flow fan according to an embodiment of the present invention includes: a middle plate, the surface of one side of the middle plate in the direction of the rotation axis is a first plane; the hub is of a hollow structure, the hub is sleeved outside the middle disc, the hub is connected with the middle disc, and one end face of the hub, which is positioned on the rotation axis, is a second plane; the blade, the blade includes main part and blade root, main part with the blade root is connected, the blade root with the peripheral wall of wheel hub is connected, the outline edge of main part includes leading edge, outer fringe and trailing edge, the one end of leading edge with the blade root is connected, the other end of leading edge with the one end of outer fringe is connected, the other end of outer fringe with the one end of trailing edge is connected, the other end of trailing edge with the blade root is connected, the trailing edge includes parallel section, parallel section with at least one in the first plane with the second plane, the blade is first end and second end in the both ends of rotation axis direction, first end is by parallel section constructs.
According to the axial flow fan provided by the embodiment of the invention, the parallel section is arranged on the tail edge and is parallel to at least one of the first plane and the second plane, so that when the blade is placed at the position where the axial flow fan is placed, the collision or friction between the blade and the surface at the place where the blade is placed can be reduced, the blade can be protected, and the production yield of the axial flow fan can be improved.
In some embodiments, in the direction of the axis of rotation, the perpendicular distance between the first end and the second end is H1, the parallel section is parallel to the second plane, and the perpendicular distance between the parallel section and the second plane is H2, wherein 0.05.ltoreq.H2/H2.ltoreq.0.3.
In some embodiments, in the direction of the axis of rotation, the perpendicular distance between the first end and the second end is H1, the parallel section is parallel to the second plane, and the perpendicular distance between the parallel section and the second plane is H2, wherein h2/h1=0.23.
In some embodiments, the second plane is located between the first end and the second end in the direction of the axis of rotation.
In some embodiments, the body portion at the parallel section has a flap edge, a side surface of the flap edge and the parallel section constructing a third plane parallel to at least one of the first plane and the second plane.
In some embodiments, the parallel segment is located at a point of the trailing edge that is connected to the outer edge.
In some embodiments, the trailing edge has a first recess that is recessed toward a center of the body portion.
In some embodiments, the surface of the body portion includes a positive pressure surface and a negative pressure surface, the negative pressure surface being provided with a second recess.
In some embodiments, the second recess is a plurality of spaced apart recesses.
In some embodiments, the middle plate has a through hole that penetrates the middle plate along the rotation axis.
In some embodiments, the middle disc is connected with the hub through a connecting plate, the surface of the connecting plate facing the first end is an inclined surface, and the inclined surface gradually inclines from the inner side to the outer side along the radial direction of the rotation axis in the direction from the second end to the first end; the first plane is located at one side of the middle plate, which faces the first end, the second plane is located at one side of the hub, which faces the first end, one end of the radial inner side of the inclined surface is connected with the first plane, and one end of the radial outer side of the inclined surface is connected with the second plane.
In some embodiments, the angle between the first plane and the inclined plane is 100 ° -170 °.
In some embodiments, the angle between the first plane and the inclined plane is 150 °.
An air treatment device according to an embodiment of the present invention includes: the axial flow fan is arranged in the shell.
According to the air treatment device provided by the embodiment of the invention, the parallel section is arranged on the tail edge and is parallel to at least one of the first plane and the second plane, when the blade is placed at the position for accommodating the axial flow fan, the collision or friction between the blade and the surface at the placed position can be relieved, so that the blade can be protected, and the production yield of the axial flow fan can be improved.
Drawings
The foregoing and/or additional aspects and advantages of the invention will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:
fig. 1 is a schematic perspective view of an axial flow fan according to an embodiment of the present invention;
FIG. 2 is an enlarged schematic view of a portion of FIG. 1 at A;
FIG. 3 is a top view of an axial flow fan according to an embodiment of the present invention;
FIG. 4 is a bottom view of an axial flow fan according to an embodiment of the present invention;
FIG. 5 is a side view of an axial flow fan according to an embodiment of the present invention;
FIG. 6 is a schematic cross-sectional view of an axial flow fan according to an embodiment of the present invention;
fig. 7 is a partially enlarged schematic view at B in fig. 6.
Reference numerals:
the axial flow fan 100,
the central plate 110, the first plane 111, the through hole 112,
the connection plate 120, the inclined surface 121,
the first and second surfaces of the hub 130, 131,
blade 140, body portion 141, positive pressure surface 1411, negative pressure surface 1412, second recess 1413,
blade root 142, leading edge 1421, outer edge 1422,
tail edge 143, parallel section 1431, first end 1432, second end 1433, turnover edge 1434, first recess 1435,
the rotation axis L.
Detailed Description
Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the invention.
An axial flow fan 100 according to an embodiment of the present invention is described below with reference to fig. 1 to 7.
As shown in fig. 1 and 3, an axial flow fan 100 according to an embodiment of the present invention includes a middle plate 110, a hub 130, and blades 140.
Specifically, the surface of the intermediate plate 110 on one side in the direction of the rotation axis L thereof is a first plane 111. The hub 130 is hollow, the hub 130 is sleeved on the middle disc 110, the hub 130 is connected with the middle disc 110, and one end surface of the hub 130, which is positioned on the rotation axis L, is a second plane 131. As shown in fig. 1 and 6, the blade 140 may include a main body 141 and a blade root 142, wherein the main body 141 is connected to the blade root 142 and the blade root 142 is connected to the outer peripheral wall of the hub 130. As shown in fig. 4, the outer contoured edges of the body portion 141 include a leading edge 1421, an outer edge 1422, and a trailing edge 143. One end of the leading edge 1421 is connected to the blade root 142, the other end of the leading edge 1421 is connected to one end of the outer edge 1422, the other end of the outer edge 1422 is connected to one end of the trailing edge 143, and the other end of the trailing edge 143 is connected to the blade root 142. It will be appreciated that the leading edge 1421, the outer edge 1422 and the trailing edge 143 are connected in sequence, and that the leading edge 1421, the outer edge 1422 and thus the trailing edge 143 together define the shape of the body portion 141.
As shown in fig. 5-7, the trailing edge 143 may include a parallel segment 1431, the parallel segment 1431 being parallel to at least one of the first plane 111 and the second plane 131. It should be noted that the parallel section 1431 may be parallel to the first plane 111; parallel segment 1431 may also be parallel to second plane 131; of course, any two of the parallel segment 1431, the first plane 111, and the second plane 131 are parallel to each other. The vane 140 has a first end 1432 and a second end 1433 at both ends in the direction of the rotation axis L, the first end 1432 being constituted by a parallel section 1431.
According to the axial flow fan 100 of the embodiment of the present invention, by providing the parallel section 1431 on the trailing edge 143 and making the parallel section 1431 parallel to at least one of the first plane 111 and the second plane 131, when the blade 140 is placed at a position where the axial flow fan 100 is placed, collision or friction between the blade 140 and a surface at the placed position can be reduced, so that the blade 140 can be protected, and the production yield of the axial flow fan 100 can be improved.
As shown in fig. 5 and 6, according to some embodiments of the present invention, a vertical distance between the first end 1432 and the second end 1433 in the direction of the rotation axis L is H1, the parallel section 1431 is parallel to the second plane 131, and a vertical distance between the parallel section 1431 and the second plane 131 is H2, wherein 0.05+.h2/h1+.0.3. Tests prove that in the production process of the axial flow fan 100, when H2/H1 is more than or equal to 0.05 and less than or equal to 0.3, the damage rate of the blades 140 is low, and the yield of the axial flow fan 100 is high. Further, when h2/h1=0.23, the blade 140 is better able to resist damage.
According to some embodiments of the invention, the second plane 131 is located between the first end 1432 and the second end 1433 in the direction of the rotation axis L. For example, in the example shown in fig. 5, which is a side view of the axial flow fan 100, the first end 1432 of the blade 140 is located at the uppermost end in fig. 5 (in the direction of the upper end shown in fig. 5), the second end 1433 of the blade 140 is located at the lowermost end in fig. 5 (in the direction of the lower end shown in fig. 5), and the vertical distance between the first end 1432 and the second end 1433 of the blade 140 is the width of the blade 140 in the up-down direction (in the up-down direction shown in fig. 5), wherein the parallel section 1431 of the blade 140 is configured as the first end 1432 of the blade 140.
To enhance the placement stability of the axial flow fan 100 during the production process, in some embodiments, as shown in fig. 2, the main body portion 141 located at the parallel section 1431 has a turnover edge 1434, and one side surface of the turnover edge 1434 and the parallel section 1431 form a third plane, which is parallel to at least one of the first plane 111 and the second plane 131. It can be appreciated that the turnover edge 1434 may be configured as a supporting structure, when the axial flow fan 100 is placed on a placement surface (such as the ground), the turnover edge 1434 cooperates with the parallel section 1431 to jointly support the overall structure of the axial flow fan 100, so that the axial flow fan 100 can be stably placed on the placement surface (such as the ground), collision and abrasion between the blades 140 and the placement surface can be avoided, and the yield of the axial flow fan 100 can be improved.
As shown in fig. 3 and 4, the parallel segment 1431 is located at a junction of the trailing edge 143 and the outer edge 1422, according to some embodiments of the present invention. The trailing edge 143 is connected to the outer edge 1422, and parallel segments 1431 are provided on the trailing edge 143 near the outer edge 1422. According to some embodiments of the present invention, as shown in fig. 3 and 4, the trailing edge 143 has a first recess 1435, and the first recess 1435 is recessed toward the center of the main body 141. On the one hand, the air-out noise of the axial flow fan 100 can be reduced, and on the other hand, the weight of the blades 140 can be reduced, and when the axial flow fan 100 is placed on the placement surface, the pressure to the parallel section 1431 can be reduced.
According to some embodiments of the present invention, as shown in fig. 4 and 5, the surface of the main body 141 may include a positive pressure surface 1411 and a negative pressure surface 1412, where the positive pressure surface 1411 is located on one side surface of the main body 141, and the negative pressure surface 1412 is located on the other side surface of the main body 141. The negative pressure face 1412 is provided with a second recess 1413. Thereby, the air-out noise of the axial flow fan 100 can be reduced. Further, the second recess 1413 may be a plurality of spaced apart. Here, the shape of the second concave portion 1413 is not particularly limited, and for example, the front projection of the second concave portion 1413 on the negative pressure surface 1412 may be circular or polygonal.
As shown in fig. 1 and 3, according to some embodiments of the present invention, the middle plate 110 has a through hole 112, and the through hole 112 penetrates the middle plate 110 along the rotation axis L. It is understood that by providing the through-holes 112, the liquid such as water can be discharged through the through-holes 112, so that the liquid such as water can be prevented from remaining on the center tray 110. For example, when the axial flow fan 100 is mounted to an outdoor unit of an air treatment apparatus and the outdoor unit is exposed to the outdoor environment during a rainy day, rainwater flows into the center plate 110, and the through holes 112 are formed in the center plate 110, so that the rainwater flows out through the through holes 112.
As shown in fig. 5-7, according to some embodiments of the present invention, the middle plate 110 is connected to the hub 130 through the connection plate 120, and the surface of the connection plate 120 facing the first end 1432 is an inclined surface 121, and the inclined surface 121 gradually inclines radially inward and radially outward along the rotation axis L in a direction from the second end 1433 to the first end 1432. The first plane 111 is located at a side of the middle plate 110 facing the first end 1432, the second plane 131 is located at a side of the hub 130 facing the first end 1432, a radially inner end of the inclined surface 121 is connected to the first plane 111, and a radially outer end of the inclined surface 121 is connected to the second plane 131.
The axial flow fan 100 may be disposed in an outdoor unit of the air treatment apparatus, and when the outdoor unit is placed in an outdoor environment, sundries such as leaves are easily accumulated in the outdoor unit, or even on the axial flow fan 100. In order not to accumulate the foreign matters on the axial flow fan 100, an inclined structure, such as an inclined surface 121, may be provided between the middle plate 110 and the hub 130, and when the axial flow wind wheel rotates, the foreign matters have a movement tendency to move radially outward of the middle plate 110 under the action of centrifugal force, and the inclined surface 121 has a guiding function, thereby being beneficial to guiding the foreign matters to the outside of the axial flow fan 100.
According to some embodiments of the invention, the angle between the first plane 111 and the inclined plane 121 is 100 ° -170 °. For example, as shown in FIG. 7, the angle between the first plane 111 and the inclined surface 121 is α, and α is 100.ltoreq.α.ltoreq.170 °. Thereby, it is advantageous to guide the foreign materials to the outside of the axial flow fan 100 by using the centrifugal force of the axial flow fan 100. Further, when the angle between the first plane 111 and the inclined surface 121 is 150 °, i.e., α=150°, the guiding effect of the inclined surface 121 is better.
According to some embodiments of the invention, the blades 140 may be a plurality of blades 140 spaced apart along the circumferential direction of the hub 130. For example, the blades 140 may be four. Further, the blades 140 are uniformly distributed along the circumferential direction of the hub 130.
An air treatment device according to an embodiment of the present invention includes: a housing and an axial flow fan 100 as described above, wherein the axial flow fan 100 is provided in the housing. It should be noted that the air treatment device may be a split type air treatment device, for example, the air treatment device may be a split type air conditioner, the air conditioner includes an indoor unit and an outdoor unit, and the indoor unit and the outdoor unit are connected through components such as a pipeline, a wire, and the like; the air treatment device can also be an integrated air conditioner, a window air conditioner or an integrated air purifier.
According to the air treatment device of the embodiment of the invention, by arranging the parallel section 1431 on the trailing edge 143 and making the parallel section 1431 parallel to at least one of the first plane 111 and the second plane 131, when the blade 140 is placed at the position where the axial flow fan 100 is placed, the collision or friction between the blade 140 and the surface at the place where the blade is placed can be reduced, so that the blade 140 can be protected, and the production yield of the axial flow fan 100 can be improved.
In the description of the present invention, it should be understood that the terms "center," "width," "thickness," "upper," "lower," "bottom," "inner," "outer," "axial," "radial," "circumferential," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the invention and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the invention. In the description of the present invention, "plurality" means two or more.
In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the invention, the scope of which is defined by the claims and their equivalents.
Claims (14)
1. An axial flow fan, comprising:
a middle plate, the surface of one side of the middle plate in the direction of the rotation axis is a first plane;
the hub is of a hollow structure, the hub is sleeved outside the middle disc, the hub is connected with the middle disc, and one end face of the hub, which is positioned on the rotation axis, is a second plane;
the blade, the blade includes main part and blade root, main part with the blade root is connected, the blade root with the peripheral wall of wheel hub is connected, the outline edge of main part includes leading edge, outer fringe and trailing edge, the one end of leading edge with the blade root is connected, the other end of leading edge with the one end of outer fringe is connected, the other end of outer fringe with the one end of trailing edge is connected, the other end of trailing edge with the blade root is connected, the trailing edge includes parallel section, parallel section with at least one in the first plane with the second plane, the blade is first end and second end in the both ends of rotation axis direction, first end is by parallel section constructs.
2. The axial flow fan according to claim 1, wherein a vertical distance between the first end and the second end in the rotation axis direction is H1,
the parallel section is parallel to the second plane, and the vertical distance between the parallel section and the second plane is H2, wherein H2/H1 is more than or equal to 0.05 and less than or equal to 0.3.
3. The axial flow fan according to claim 2, wherein H2/h1=0.23.
4. The axial flow fan of claim 2, wherein the second plane is located between the first end and the second end in the direction of the rotational axis.
5. The axial flow fan according to claim 1, wherein the main body portion at the parallel section has a turnover edge, and a side surface of the turnover edge and the parallel section configure a third plane parallel to at least one of the first plane and the second plane.
6. The axial flow fan according to claim 1, wherein the parallel section is located at a portion of the trailing edge that is connected to the outer edge.
7. The axial flow fan of claim 1, wherein the trailing edge has a first recess that is recessed toward a center of the main body portion.
8. The axial flow fan according to claim 1, wherein the surface of the main body portion includes a positive pressure surface and a negative pressure surface, the negative pressure surface being provided with a second concave portion.
9. The axial flow fan of claim 8, wherein the second recess is a plurality of spaced apart.
10. The axial flow fan according to claim 1, wherein the center plate has a through hole penetrating the center plate along the rotation axis.
11. The axial flow fan according to any one of claims 1 to 10, wherein the center plate is connected to the hub by a connecting plate, a surface of the connecting plate facing the first end is an inclined surface,
the inclined surface is gradually inclined from the radial inner side to the radial outer side of the rotation axis in the direction from the second end to the first end;
the first plane is located at one side of the middle plate, which faces the first end, the second plane is located at one side of the hub, which faces the first end, one end of the radial inner side of the inclined surface is connected with the first plane, and one end of the radial outer side of the inclined surface is connected with the second plane.
12. The axial flow fan of claim 11, wherein an angle between the first plane and the inclined surface is 100 ° -170 °.
13. The axial flow fan of claim 12, wherein an angle between the first plane and the inclined surface is 150 °.
14. An air treatment device, comprising:
a housing;
an axial flow fan, which is an axial flow fan according to any one of claims 1 to 13, the axial flow fan being provided inside the housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910107345.XA CN109707644B (en) | 2019-02-02 | 2019-02-02 | Axial flow motor and air treatment device with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910107345.XA CN109707644B (en) | 2019-02-02 | 2019-02-02 | Axial flow motor and air treatment device with same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109707644A CN109707644A (en) | 2019-05-03 |
| CN109707644B true CN109707644B (en) | 2023-11-03 |
Family
ID=66264298
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910107345.XA Active CN109707644B (en) | 2019-02-02 | 2019-02-02 | Axial flow motor and air treatment device with same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109707644B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112049819A (en) * | 2020-08-31 | 2020-12-08 | 青岛海尔空调电子有限公司 | Wind wheel, fan and air conditioner outdoor unit |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20040026882A (en) * | 2002-09-26 | 2004-04-01 | 엘지전자 주식회사 | Axial Flow Fan |
| CN102777418A (en) * | 2012-07-09 | 2012-11-14 | 广东美的电器股份有限公司 | Axial flow wind wheel and air-conditioning outdoor unit |
| JP2014185551A (en) * | 2013-03-22 | 2014-10-02 | Mitsubishi Heavy Ind Ltd | Propeller fan |
| CN107795516A (en) * | 2016-09-02 | 2018-03-13 | 富士通将军股份有限公司 | Aerofoil fan and outdoor unit |
| CN209586721U (en) * | 2019-02-02 | 2019-11-05 | 广东美的暖通设备有限公司 | Axial flow blower and air processor with it |
-
2019
- 2019-02-02 CN CN201910107345.XA patent/CN109707644B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20040026882A (en) * | 2002-09-26 | 2004-04-01 | 엘지전자 주식회사 | Axial Flow Fan |
| CN102777418A (en) * | 2012-07-09 | 2012-11-14 | 广东美的电器股份有限公司 | Axial flow wind wheel and air-conditioning outdoor unit |
| JP2014185551A (en) * | 2013-03-22 | 2014-10-02 | Mitsubishi Heavy Ind Ltd | Propeller fan |
| CN107795516A (en) * | 2016-09-02 | 2018-03-13 | 富士通将军股份有限公司 | Aerofoil fan and outdoor unit |
| CN209586721U (en) * | 2019-02-02 | 2019-11-05 | 广东美的暖通设备有限公司 | Axial flow blower and air processor with it |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109707644A (en) | 2019-05-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN207795681U (en) | Axial flow fan leaf, axial flow fan blade component, axial flow blower ducting assembly | |
| JP5525429B2 (en) | Counter-rotating axial fan | |
| EP2949944B1 (en) | Centrifugal fan | |
| JP5722367B2 (en) | Centrifugal blower | |
| CN109707644B (en) | Axial flow motor and air treatment device with same | |
| JP2016524094A (en) | Vertical axis wind turbine | |
| KR102562563B1 (en) | Turbo fan and air conditioner having the same | |
| CN203548269U (en) | Backward type centrifugal fan | |
| CN210290259U (en) | Impeller, fan and motor | |
| CN209984154U (en) | High-speed dust collector motor | |
| US20130330182A1 (en) | Centrifugal blower | |
| CN108105158B (en) | Diffuser, fan, dust collector and smoke extractor | |
| CN110319038A (en) | A kind of efficient Wet-dry blower | |
| CN205714934U (en) | A kind of brushless fan bleed type wind wheel | |
| JP2020518761A (en) | Impeller, fan and motor | |
| CN209586721U (en) | Axial flow blower and air processor with it | |
| KR101817956B1 (en) | Impeller for a blower | |
| CN201228661Y (en) | Blower fan | |
| CN209943194U (en) | Centrifugal fan blade, centrifugal fan with centrifugal fan blade and air conditioner | |
| CN211022455U (en) | A dirt cup and dust catcher for air-out subassembly, be used for dust catcher of dirt cup | |
| CN215595932U (en) | Axial flow fan | |
| CN220354112U (en) | Centrifugal impeller with double-layer blade structure | |
| JP2016183643A (en) | Propeller fan | |
| CN209244882U (en) | Blower | |
| CN215486800U (en) | Fan impeller |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |