CN203516197U - Propeller fan and outdoor unit of air conditioner - Google Patents
Propeller fan and outdoor unit of air conditioner Download PDFInfo
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- CN203516197U CN203516197U CN201320576676.6U CN201320576676U CN203516197U CN 203516197 U CN203516197 U CN 203516197U CN 201320576676 U CN201320576676 U CN 201320576676U CN 203516197 U CN203516197 U CN 203516197U
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- blade
- propeller fan
- recess
- trailing edge
- profile line
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Abstract
The utility model provides a propeller fan and an outdoor unit of an air conditioner. A plurality of blades are arranged on the circumference of a cylindrical hub of the propeller fan, and the propeller fan rotates to supply air in the axial direction. A blade rear edge portion is arranged on the air outlet side of each blade, a blade front edge portion is arranged on the air inlet side of each blade, a blade peripheral portion is arranged on the periphery of each blade, and a concave portion which caves in the direction opposite to the air outlet direction is formed in each blade rear edge portion. When the length of the line segment P1-P2 between each joint P1 and the corresponding joint P2 is the width size a of the corresponding concave portion, the width sizes a of the concave portions of all the blades are arranged to be different from one another, each joint P1 is a joint of a blade rear edge inner peripheral side contour line alpha1 which forms the corresponding blade rear edge portion and a concave contour line alpha2 which forms the corresponding concave portion, and each joint P2 is a joint of a blade rear edge outer peripheral side contour line alpha3 and a connecting line which is drawn from a hub center point O to the blade rear edge outer peripheral side contour line alpha3 which forms the corresponding blade rear edge portion. According to the propeller fan and the outdoor unit of the air conditioner, air supply noise caused by blade tone voice can be reduced.
Description
Technical field
Mode of execution of the present utility model relates to a kind of propeller fan (propeller fan) and uses the outdoor unit of the air conditioner (air-conditioning machine) of described propeller fan.
Background technique
Common air conditioner comprises indoor unit and outdoor unit, and as gas fan, many use cross flow blowers (cross flow fan) in indoor unit, and in outdoor unit, use propeller fans more.By using described propeller fan, can realize the slimming of outdoor unit, and can improve the heat exchange efficiency with respect to heat exchanger (heat exchanger).
As propeller fan, the known propeller fan that has patent documentation 1 for example.The profile line of encountering a trailing edge portion part for air outflow portion during the rotation of blade herein (blade) (blade) forms recess, and described recess is roughly circular-arc formation depression towards the direction contrary with air stream outgoing direction.By comprising recess, the generation of trailing vortex (trailing vortex) in the time of can suppressing propeller fan rotation, thereby can reduce air-supply noise.
Prior art document
Patent documentation
Patent documentation 1: Japanese Patent Laid-Open 2002-257088 communique
Model utility content
The problem that wish solves
But in the propeller fan of existing structure, the recess being formed on multi-disc blade is identical shape and size.Therefore, be clarified as follows: the wake flow side at each blade when propeller fan rotates can periodically produce vortex, thereby the sound pressure level of blade tone (pitch) acoustic frequency (sound pressure level) increases, the reduction effect of the noise that causes blowing is not as people's will.
Due to situation as above, so expect to have a kind of generation cycle of the trailing vortex that produces in the wake flow side of each blade of staggering, and positively reduce the propeller fan of the air-supply noise being caused by blade pitch bell and use the air conditioner outdoor unit of described propeller fan.
The means of the problem solving
The propeller fan of present embodiment is provided with multi-disc blade along the circumferential surface of the wheel hub (hub) of tubular, and is accompanied by rotation and axially air-supply.
Described blade forms trailing edge portion in the outflow side of air, and the importing side formation blade inlet edge portion at air, forms blade peripheral part in periphery, and in trailing edge portion, be provided with the recess that is formed with depression in the direction of the outflow opposite direction towards with air.
Described trailing edge portion is connected with trailing edge inner circumferential side profile line α 1, the recess profile line α 2 that forms recess and trailing edge outer circumferential side profile line α 3 to form.
When the length that links the line segment P1-P2 of intersection point P1 and intersection point P2 is made as to the width dimensions a of recess, the depth dimensions that is set as the recess on each blade is constant and width dimensions a is different, described intersection point P1 is described trailing edge inner circumferential side profile line α 1 and the intersection point of recess profile line α 2, and described intersection point P2 is trailing edge outer circumferential side profile line α 3 and central point O from the wheel hub intersection point to the drawn wiring of trailing edge outer circumferential side profile line α 3.
The propeller fan of present embodiment, wherein said propeller fan comprises 3 described blades, when take the width dimensions a of described recess of the described trailing edge portion that is arranged at described blade, at described blade, be different modes on each other, the width dimensions of the described recess of blade described in each is made as respectively to a1, a2, during a3, be made as a1<a2<a3, and make the width dimensions a1 of the described recess of described each blade, a2, with respect to the ratio of blower fan radius r, the ratio with predetermined range changes a3, the ratio that the width dimensions of described recess is changed with respect to described blower fan radius r is that blade volatility Ψ is set as 2% ≦ Ψ≤6%.
The propeller fan of present embodiment, is wherein made as identical value by the width dimensions a1 of described recess with ratio (blade volatility) Ψ of ratio (blade volatility) Ψ of the variation of width dimensions a2 and the variation of width dimensions a2 and width dimensions a3.
The propeller fan of present embodiment, wherein by making the invariant position of described intersection point P2, and change the position of described intersection point P1, change the width dimensions a of described recess, described intersection point P2 is described recess profile line curve α 2 and central point O from the described wheel hub intersection point to the drawn wiring of described trailing edge outer circumferential side profile line α 3, and described intersection point P1 is described trailing edge inner circumferential side profile line α 1 and the intersection point of described recess profile line α 2.
The outdoor unit of the air conditioner of present embodiment comprises in framework unit: described propeller fan; And heat exchanger, a part for formation freeze cycle.
Accompanying drawing explanation
Fig. 1 is the cross-sectional plan of outdoor unit of the air conditioner of present embodiment.
Fig. 2 is the stereogram of the propeller fan of described mode of execution.
Fig. 3 is the front view of the propeller fan of described mode of execution.
Fig. 4 is the enlarged view of a part of the propeller fan of described mode of execution.
Fig. 5 is the performance plot of the air-supply noise with respect to air quantity of the propeller fan of described mode of execution and the propeller fan of existing structure.
Fig. 6 is the volatility of the propeller fan of described mode of execution and the trailing edge recess width of the propeller fan of existing structure under identical air quantity and the performance plot to existing fan noise value.
Fig. 7 is in the propeller fan of described mode of execution, the performance plot that the variation ratio of each interlobate recess width is made as to fixing propeller fan and the variation ratio of described recess width is made as to the level of noise with respect to air quantity of unfixed propeller fan.
The explanation of symbol
1: wheel hub
2: blade
2a: foundation portion
2b: blade inlet edge portion
2c: trailing edge portion
2d: blade peripheral part
3: recess
100: unit framework
101: space bar
102: heat exchange chamber
103: machine room
104: blow-off outlet
α: the profile line that forms trailing edge portion
α 1: trailing edge inner circumferential side profile line
α 2: recess profile line
α 3: trailing edge outer circumferential side profile line
β: the profile line that forms blade peripheral part
γ: the profile line that forms blade inlet edge portion
A1, a2, a3: the width dimensions of recess
F: propeller fan
K: compressor
M: blower motor
N: heat exchanger
O: the central point of wheel hub
P1: the intersection point of trailing edge inner circumferential side profile line and recess profile line
P2: trailing edge outer circumferential side profile line and the intersection point to the drawn wiring of trailing edge outer circumferential side profile line from the central point of wheel hub
R: blower fan radius/blade radius (spin spindle central is to the distance of blade peripheral part)
S: gas fan
U: outdoor unit
V: four-way valve
W: controller
Embodiment
Below, with reference to the accompanying drawings present embodiment is described.
Fig. 1 is the general view of the outdoor unit U of air conditioner.
The outdoor unit U of described air conditioner takes in the controller W of outdoor heat converter N, gas fan S, compressor K, four-way valve (four-way valve) V and changer (inverter) etc. etc. in unit framework 100, the plane shape of described outdoor heat converter N forms roughly L word shape, described gas fan S comprises blower motor M, and described blower motor M rabbets on running shaft following propeller fan F.
In unit framework 100, be provided with space bar (diaphragm) 101, framework 100 inside in unit are divided into heat exchange chamber 102 and machine room 103, described heat exchange chamber 102 accommodation chamber outer heat-exchanger N and gas fan S, compressor K, four-way valve V, controller W etc. are taken in described machine room 103.On the back side of heat exchange chamber 102 and side, be provided with not shown suction port, on front surface, be provided with blow-off outlet 104.
This outdoor unit U is communicated with not shown indoor unit via coolant piping etc., forms air conditioner.When the commencing signal of freeze cycle operation enters, drive compression machine K, by refrigerant conducting to coolant piping and guide to outdoor heat converter N.
Meanwhile, operation commencing signal enters to gas fan S, and blower motor M is rotated driving to propeller fan F.Outside air enters to the heat exchange chamber 102 in unit framework 100, in outdoor heat converter N, circulates, and carries out heat exchange with the refrigerant that is directed to described outdoor heat converter N.Then, via gas fan S, from the blow-off outlet 104 of the front surface of unit framework 100, to outside, discharge.
Fig. 2 observes the stereogram of propeller fan F from blade pressure surface side, Fig. 3 observes the front view of propeller fan F from blade pressure surface side.
As the basic comprising of propeller fan F, at central part, be provided with wheel hub 1 cylindraceous, on the circumferential surface of wheel hub 1, take predetermined distance and be provided with integratedly multi-disc (being 3 herein) blade is blade 2.When propeller fan F being rotated to driving, follow in this, from blade suction surface side direction blade pressure surface side, axially blow.
Being connected with wheel hub 1 part being integrated and being called the 2a of foundation portion described blade 2, the sense of rotation front side of propeller fan F is called to the 2b of blade inlet edge portion, sense of rotation rear side is called to the 2c of trailing edge portion, the end that links the described blade inlet edge 2b of portion outer circumference end and the 2c of trailing edge portion outer circumference end is called to blade peripheral part 2d.
Air Flow on the blade 2 that is accompanied by the rotation of propeller fan F if take and produces is benchmark, and the 2b of blade inlet edge portion becomes the importing side of air, and the 2c of trailing edge portion becomes the outflow side of air.And the rotation side end of the front end beguine base portion 2a of the 2b of blade inlet edge portion is more significantly outstanding to sense of rotation side, this point is identical with existing structure.
Particularly the profile line that forms the 2b of blade inlet edge portion is called to γ, the profile line that forms the 2c of trailing edge portion is called to α, the profile line that forms blade peripheral part 2d is called to β.As feature herein, a part of the profile line α of the formation 2c of trailing edge portion as described later, towards the importing direction depression of the outflow opposite direction with air, and forms contrary circular-arc recess 3.
Fig. 4 is the enlarged view of a part of the blade 2 of propeller fan F, is for further specifically describing the figure of the profile line α of the 2c of trailing edge portion.
On blade 2, the profile line α that meets the 2c of trailing edge portion of air outflow portion when propeller fan F rotates is following contours connection and forming, and described profile line is the trailing edge inner circumferential side profile line α 1 of the straight line shape that formed by the 2a of foundation portion, as contrary circular-arc valley profile line α 2 and the circular-arc trailing edge outer circumferential side profile line α 3 that is connected with the profile line β of blade peripheral part 2d.
And, will be on described blade 2, the length that links the line segment P1-P2 of intersection point P1 and intersection point P2 is made as the width dimensions a of described recess 3, described intersection point P1 is trailing edge inner circumferential side profile line α 1 and the intersection point of recess profile line α 2, and described intersection point P2 is trailing edge outer circumferential side profile line α 3 and central point O from wheel hub 1 intersection point to the drawn wiring of trailing edge outer circumferential side profile line α 3.
And, about formed recess 3 on the 2c of trailing edge portion on each blade 2 comprising 3, at blade 2, go up each other depth dimensions constant, and width dimensions a be set as to different size.
Thus, the generation cycle of the caused blade pitch bell of trailing vortex that produces of staggering while being rotated by propeller fan F, thus reduce the air-supply noise being caused by blade pitch bell.
Below, its reason is described.
As shown in Figure 3, when propeller fan F is rotated in a clockwise direction, air flows towards the contrary direction of the sense of rotation with propeller fan F.That is, air enters from the 2b of blade inlet edge portion of each blade 2, and flows with the back side (suction surface) along the surface (pressure surface) of each blade 2, and from the 2c of trailing edge portion out.
Each blade 2 is that the shaft core direction with respect to running shaft reverses obliquely and forms, and along the mobile air of blade 2, is therefore the mode having been holded with both hands with both hands with the surface along blade 2 and flowing.Surperficial air by blade 2 is peeled off through the 2c of trailing edge portion, and separated with blade 2.
Then, the air by a slice blade 2 wherein and collide each other phase mutual interference by described blade 2 and air between another sheet blade 2 and produce vortex.Here it is so-called trailing vortex, its can impact blade pitch bell.
Yet, by recess 3 being set at the 2c of trailing edge portion, can suppress to a certain degree the generation of trailing vortex as everyone knows, thereby reduce blade pitch bell.
But, owing on each blade 2, recess 3 being all set as to identical shape and size, thus the generation cycle of the blade pitch bell on each blade 2 become identical, and synthetic by sound, sound pressure level can increase.That is, the minimizing of blade pitch bell is extremely insignificant.
And, the width dimensions of recess 3 is made as mutually the same, make depth dimensions more increase (darker), the blade area of blade 2 becomes recessed darker state, thus blade area dwindle, air output significantly declines.
Yet, by controlling by a small margin to a certain degree the depth dimensions of recess 3, replace and change the width dimensions a of recess 3, can make the generation of trailing vortex of each blade 2 different, and affect hardly the minimizing of the blade area of blade 2.Therefore, the generation cycle of known blade pitch bell is different, thereby can suppress sound pressure level, increases, and guarantees air output.
Therefore, as mentioned above, the depth dimensions of recess 3 of the 2c of trailing edge portion that is arranged at blade 2 is constant, and width dimensions a is formed to the different size of each blade 2.
Fig. 5 is the performance plot of the air-supply noise with respect to air quantity of the propeller fan of present embodiment and the propeller fan of existing structure.
In figure, solid line is changed to the propeller fan F of present embodiment, the propeller fan that dotted lines is existing structure.Be respectively 3 fins (blade) each other, and blade radius (spin rotating shaft center O is to the distance r of blade peripheral part 2d) is set as to 250mm.
The propeller fan F of contrast present embodiment and the propeller fan of existing structure, the propeller fan F of described present embodiment is on each blade 2, the depth dimensions of recess 3 that is formed at the 2c of trailing edge portion is constant, and making width dimensions a different, the propeller fan of described existing structure is that recess is all made as to identical shape and size.Under all air quantity, to compare with the propeller fan of existing structure, the level of noise of the propeller fan F of present embodiment reduces.
Herein, be to be applied in 3 fins that 3 described blades 2 are installed on wheel hub 1.The depth dimensions of recess 3 that is arranged at the 2c of trailing edge portion of described blade 2 is made as fixing, and to take width dimensions a be different modes at blade 2 on each other, and the width dimensions of the recess of each blade 23 is made as to a1, a2, a3, and be made as a1<a2<a3.
And Fig. 6 represents to take that the longest " a3 " of width dimensions a of recess 3 is benchmark, the volatility Ψ of the a1 while being made as a3=0.3r, a3=0.4r, a3=0.5r and a2, a2 and a3 and the relation of level of noise.
Moreover when blower fan radius is made as to r, the ratio of the variation of recess width size a is that volatility Ψ can be expressed as follows:
The volatility Ψ of a1 and a2=[(a2-a1)/r * 100] %
The volatility Ψ of a2 and a3=[(a3-a2)/r * 100] %.
Fig. 6 is made as identical by a1 with volatility Ψ, the a2 of a2 and the volatility Ψ of a3.The propeller fan F of the propeller fan of existing structure and present embodiment is made as to mutually the same air quantity 4000m
3/ h contrasts, the propeller fan of described existing structure is that the shape of the recess on all blades and size are all made as identical, the propeller fan F of described present embodiment is that the depth dimensions of recess 3 is constant, and width dimensions is set as on each blade 2 different.
The width dimensions a of the recess on the propeller fan of existing structure is 0.45r, and as shown in by dotted lines, level of noise is constant and be fixing.
In the propeller fan F of present embodiment, the variation to existing structure fan noise value while representing to be made as a3=0.3r with solid line, the variation to existing structure fan noise value while representing to be made as a3=0.4r with a dot and dash line, the variation to existing structure fan noise value while representing to be made as a3=0.5r with two dot and dash line.
In the propeller fan F of present embodiment, known and no matter the recess 3 that is arranged at trailing edge portion 2 has been set as to which kind of width dimensions, in the scope that is 2%～6% at volatility Ψ, existing structure fan noise value is all declined.
In this propeller fan, conventionally, as long as level of noise reduces 1dB, just know the effect of reducing noise as everyone knows.To this, in above-mentioned scope, noise all declines and is greater than the degree of 1dB, therefore can identify extremely clearly reducing noise.
Know in addition, in the scope that is 2%～6% at above-mentioned volatility Ψ, to decline minimum and reducing noise of existing structure fan noise value, be the variation of the a3=0.4r that represents with a dot and dash line the most significantly, and be when volatility Ψ is set as to 4%.
That is, take a3=0.4r as benchmark, from a3, deduct 4% and become a2, further deduct 4% and become a1.That is, as long as be set as a1=0.32r, a2=0.36r, a=0.4r.
If substitution actual numerical value, when the radius r of propeller fan F is 250mm, on the 1st blade 2, is set as 0.32 * 250mm=80mm by the width dimensions a1 of recess 3 so.On the 2nd blade 2, the width dimensions a2 of recess 3 is set as to 0.36 * 250mm=90mm.On the 3rd blade 2, the width dimensions a3 of recess 3 is set as to 0.4 * 250mm=100mm.
As mentioned above, when the radius of propeller fan F is 250mm, as long as the width dimensions a of recess 3 is set as respectively differing 4% on each blade 2, be 80mm, 90mm, 100mm, the reduction of air-supply noise is just remarkable.
Moreover, in the above-described embodiment, be made as the width dimensions a that changes successively the recess 3 on each blade 2, but be not limited thereto, can not change successively yet, and make the order of configuration different.
That is, even if the configuration of each blade 2 does not have regularity, the generation cycle of the caused blade pitch bell of trailing vortex that produces of also can staggering while being moved by propeller fan F, thus positively realize reducing noise.
And, above-mentioned mode of execution has illustrated the example that the width dimensions a that makes trailing edge recess changes with fixed proportion in 2%～6% scope, but be not limited thereto, also can, in 2%～6% scope, with identical ratio or with different ratios, set described width dimensions a.This condition is according to following Fig. 7 and clear and definite.
Fig. 7 be the variation ratio (volatility) that the variation ratio (volatility) of the recess width between each blade is made as to fixing propeller fan and described recess width in the propeller fan of present embodiment for unfixed propeller fan, with the volatility of the trailing edge recess width under identical air quantity of the propeller fan of existing structure and the performance plot to existing fan noise value.
Illustrated dotted lines is the propeller fan of existing structure, and described propeller fan is on each blade, the width dimensions of recess and depth dimensions to be all made as identical.In addition, be the propeller fan of present embodiment structure, it is that the volatility Ψ of recess width size a between the 1st blade (a1: following identical) and the 2nd blade (a2: following identical) is 4% that thick solid line changes, and the situation of the propeller fan F that the volatility Ψ of recess width size a is 4% between the 2nd blade and the 3rd blade (a3: following identical).
Fine rule variation is that the volatility Ψ of recess width size a between the 1st blade and the 2nd blade is 2%, and the situation of the propeller fan that the volatility Ψ of recess width size a is 4% between the 2nd blade and the 3rd blade.
One dot and dash line variation is that the volatility Ψ of recess width size a between the 1st blade and the 2nd blade is 4%, and the situation of the propeller fan that the volatility Ψ of recess width size a is 6% between the 2nd blade and the 3rd blade.
Two dot and dash line variations are that the volatility Ψ of recess width size a between the 1st blade and the 2nd blade is 4%, and the situation of the propeller fan that the volatility Ψ of recess width size a is 8% between the 2nd blade and the 3rd blade.
As by known to figure, the volatility Ψ of recess width size a between the 1st and the 2nd and between the 2nd and the 3rd is respectively 4% propeller fan F, that is, the ratio of volatility Ψ is made as to the reduction of air-supply noise of fixing propeller fan F the most remarkable.
But, known not will volatility Ψ ratio be made as fixingly, even if the ratio of volatility Ψ is different, compares also and can reduce air-supply noise with the propeller fan of existing structure.
And the contrary circular-arc curve α 2 that forms recess 3 is formed by 1 Curves in the drawings, be still not limited thereto, also can or 2 straight lines be combined for the combination of the different curve of 2 radius of curvature and form the roughly recess of V word shape.
And, trailing edge inner circumferential side profile line α 1 is formed to straight line shape, but also trailing edge inner circumferential side profile line α 1 can be formed to curve.But, the length of trailing edge outer circumferential side profile line α 3, be that the position of contact P2 is for fixing, therefore in order to change the length of trailing edge inner circumferential side profile line α 1, be the position of contact P1, the length of described trailing edge inner circumferential side profile line α 1 must not be zero (0).
Above, present embodiment is described, but above-mentioned mode of execution is to play suggesting effect as example, is not intended to limit the scope of mode of execution.The mode of execution of described novelty can be implemented by other variety of way, within not departing from the scope of purport, can carry out various omissions, replacement, change.Described mode of execution or its distortion are all contained in the scope or purport of model utility, and in the scope equal with it.
Claims (5)
1. a propeller fan, is provided with multi-disc blade along the circumferential surface of tubular wheel hub, and is accompanied by rotation and axially air-supply, and described propeller fan is characterised in that:
Described blade is formed with trailing edge portion in the outflow side of air, importing side at air is formed with blade inlet edge portion, in periphery, be formed with blade peripheral part, and be provided with in trailing edge portion the recess that is formed with depression in the direction of the outflow opposite direction towards with air
Described trailing edge portion is connected with trailing edge inner circumferential side profile line α 1, the recess profile line α 2 that forms described recess and trailing edge outer circumferential side profile line α 3 to form,
When the length that links the line segment P1-P2 of intersection point P1 and intersection point P2 is made as to the width dimensions a of described recess, the width dimensions a of the described recess described in each on blade is set as different, described intersection point P1 is described trailing edge inner circumferential side profile line α 1 and the intersection point of described recess profile line α 2, and described intersection point P2 is described trailing edge outer circumferential side profile line α 3 and central point O from the described wheel hub intersection point to the drawn wiring of described trailing edge outer circumferential side profile line α 3.
2. propeller fan according to claim 1, is characterized in that:
Described propeller fan comprises 3 described blades,
When take the width dimensions a of described recess of the described trailing edge portion that is arranged at described blade, at described blade, be different modes on each other, when the width dimensions of the described recess of blade described in each is made as respectively to a1, a2, a3, be made as a1<a2<a3, and
With respect to the ratio of blower fan radius r, the ratio with predetermined range changes width dimensions a1, a2, the a3 that makes the described recess of described each blade,
The ratio that the width dimensions of described recess is changed with respect to described blower fan radius r is that blade volatility Ψ is set as 2% ≦ Ψ≤6%.
3. propeller fan according to claim 2, is characterized in that:
The ratio that is the variation of blade volatility Ψ and width dimensions a2 and width dimensions a3 with the ratio of the variation of width dimensions a2 by the width dimensions a1 of described recess is that blade volatility Ψ is made as identical value.
4. propeller fan according to claim 1, is characterized in that:
By making the invariant position of described intersection point P2, and change the position of described intersection point P1, change the width dimensions a of described recess, described intersection point P2 is described recess profile line curve α 2 and central point O from the described wheel hub intersection point to the drawn wiring of described trailing edge outer circumferential side profile line α 3, and described intersection point P1 is described trailing edge inner circumferential side profile line α 1 and the intersection point of described recess profile line α 2.
5. an outdoor unit for air conditioner, is characterized in that:
The outdoor unit of described air conditioner comprises in framework unit:
According to claim 1 to the propeller fan described in any one in claim 4; And
Heat exchanger, a part for formation freeze cycle.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2012-206022 | 2012-09-19 | ||
| JP2012206022 | 2012-09-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203516197U true CN203516197U (en) | 2014-04-02 |
Family
ID=50375133
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320576676.6U Expired - Lifetime CN203516197U (en) | 2012-09-19 | 2013-09-17 | Propeller fan and outdoor unit of air conditioner |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP6170783B2 (en) |
| CN (1) | CN203516197U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106766045A (en) * | 2016-11-15 | 2017-05-31 | 广东美的制冷设备有限公司 | Air-supply assembly and air-conditioner |
| CN106766046A (en) * | 2016-11-15 | 2017-05-31 | 广东美的制冷设备有限公司 | Air-supply assembly and air-conditioner |
| CN107436007A (en) * | 2017-09-12 | 2017-12-05 | 中山市壹比壹节能环保科技有限公司 | Axial-flow type mute air conditioning fan |
| CN108291559A (en) * | 2015-11-30 | 2018-07-17 | 三星电子株式会社 | Blower fan and air-conditioning with the blower fan |
| CN115559938A (en) * | 2021-07-01 | 2023-01-03 | 马勒国际有限公司 | Fan impeller |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107023513A (en) * | 2017-06-16 | 2017-08-08 | 广东美的制冷设备有限公司 | Axial-flow windwheel and air conditioner |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002054596A (en) * | 2000-08-10 | 2002-02-20 | Japan Servo Co Ltd | Axial-flow fan |
| JP4003541B2 (en) * | 2002-05-30 | 2007-11-07 | 三菱電機株式会社 | Blower |
| JP2004301451A (en) * | 2003-03-31 | 2004-10-28 | Toshiba Kyaria Kk | Outdoor machine for air conditioner |
| JP4467952B2 (en) * | 2003-11-10 | 2010-05-26 | 東芝キヤリア株式会社 | Propeller fan, outdoor unit for air conditioner using this |
| EP1801422B1 (en) * | 2005-12-22 | 2013-06-12 | Ziehl-Abegg AG | Fan and fan blade |
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2013
- 2013-08-30 JP JP2013179863A patent/JP6170783B2/en active Active
- 2013-09-17 CN CN201320576676.6U patent/CN203516197U/en not_active Expired - Lifetime
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108291559A (en) * | 2015-11-30 | 2018-07-17 | 三星电子株式会社 | Blower fan and air-conditioning with the blower fan |
| US11041506B2 (en) | 2015-11-30 | 2021-06-22 | Samsung Electronics Co., Ltd. | Blower fan and air conditioner having same |
| CN106766045A (en) * | 2016-11-15 | 2017-05-31 | 广东美的制冷设备有限公司 | Air-supply assembly and air-conditioner |
| CN106766046A (en) * | 2016-11-15 | 2017-05-31 | 广东美的制冷设备有限公司 | Air-supply assembly and air-conditioner |
| CN106766045B (en) * | 2016-11-15 | 2019-12-10 | 广东美的制冷设备有限公司 | Air supply assembly and air conditioner |
| CN107436007A (en) * | 2017-09-12 | 2017-12-05 | 中山市壹比壹节能环保科技有限公司 | Axial-flow type mute air conditioning fan |
| CN115559938A (en) * | 2021-07-01 | 2023-01-03 | 马勒国际有限公司 | Fan impeller |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2014077437A (en) | 2014-05-01 |
| JP6170783B2 (en) | 2017-07-26 |
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| CX01 | Expiry of patent term |
Granted publication date: 20140402 |