CN106122087A - Centrifugal wind wheel and air-conditioner - Google Patents
Centrifugal wind wheel and air-conditioner Download PDFInfo
- Publication number
- CN106122087A CN106122087A CN201610768769.7A CN201610768769A CN106122087A CN 106122087 A CN106122087 A CN 106122087A CN 201610768769 A CN201610768769 A CN 201610768769A CN 106122087 A CN106122087 A CN 106122087A
- Authority
- CN
- China
- Prior art keywords
- spoke
- centrifugal wind
- wind wheel
- noise reduction
- reduction hole
- 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.)
- Granted
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/26—Rotors specially for elastic fluids
- F04D29/28—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps
- F04D29/281—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps for fans or blowers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
- F04D29/666—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps by means of rotor construction or layout, e.g. unequal distribution of blades or vanes
Abstract
The open a kind of centrifugal wind wheel of the present invention and air-conditioner, wherein, centrifugal wind wheel includes wheel hub and connects the spoke of described wheel hub, and described spoke includes multiple spaced spoke, described spoke has provided noise reduction hole.Technical scheme is by offering noise reduction hole on the spoke of centrifugal wind wheel, on the one hand the rigidity of spoke is reduced, make the dromotropy of vibration, on the other hand the air of centrifugal wind wheel fan side and blade-side is made mutually to circulate, thus reducing the formation of eddy current, above-mentioned two aspect reduces the noise of centrifugal wind wheel jointly.
Description
Technical field
The present invention relates to air-conditioning technical field, particularly to a kind of centrifugal wind wheel and the air-conditioning being provided with this centrifugal wind wheel
Device.
Background technology
Being usually provided with centrifugal wind wheel in air-conditioner, centrifugal wind wheel can produce noise in the running, thus affects user's body
Test.
Summary of the invention
The main object of the present invention is to propose a kind of centrifugal wind wheel, it is intended to what reduction centrifugal wind wheel operationally produced makes an uproar
Sound.
For achieving the above object, the centrifugal wind wheel that the present invention proposes includes wheel hub and connects the spoke of described wheel hub, described
Spoke includes multiple spaced spoke, and described spoke has provided noise reduction hole.
Preferably, each described spoke is provided with noise reduction hole described in two.
Preferably, described in two, noise reduction hole is arranged side by side on the bearing of trend of described spoke.
Preferably, noise reduction hole described in two on the bearing of trend of described spoke in being intervally arranged.
Preferably, noise reduction hole described in two is in the circumferentially-spaced arrangement of described wheel hub.
Preferably, the wavelength of the mechanical wave that described hub vibrational produces is λ, and described in two, noise reduction hole is in the extension of described spoke
Spacing on direction is the odd-multiple of λ.
Preferably, the quantity of described spoke is odd number.
Preferably, the quantity of described spoke is prime number.
Preferably, the lateral surface of described spoke is provided with the ring stiffener being positioned at described noise reduction hole peripheral.
Preferably, the lateral surface of described wheel hub is provided with the rib radially extended along described wheel hub, prolonging of described rib
Stretch end and connect described ring stiffener.
Preferably, described noise reduction hole from the lateral surface of described spoke towards the medial surface of spoke be flaring arrange.
The present invention also provides for a kind of air-conditioner, described air-conditioner include centrifugal wind wheel, described centrifugal wind wheel include wheel hub and
Connecting the spoke of described wheel hub, described spoke includes multiple spaced spoke, and described spoke has provided noise reduction hole.
Technical scheme, by offering noise reduction hole on the spoke of centrifugal wind wheel, on the one hand reduces the firm of spoke
Property, make the dromotropy of vibration, on the other hand make the air of centrifugal wind wheel fan side and blade-side mutually circulate, thus reduce
The formation of eddy current, above-mentioned two aspect reduces the noise of centrifugal wind wheel jointly.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
In having technology to describe, the required accompanying drawing used is briefly described, it should be apparent that, the accompanying drawing in describing below is only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to
Other accompanying drawing is obtained according to the structure shown in these accompanying drawings.
Fig. 1 is the structural representation of centrifugal wind wheel first embodiment of the present invention；
Fig. 2 is the top view of centrifugal wind wheel in Fig. 1；
Fig. 3 is the structural representation of centrifugal wind wheel the second embodiment of the present invention；
Fig. 4 is the planar structure schematic diagram at another visual angle of centrifugal wind wheel in Fig. 3；
Fig. 5 is the structural representation of centrifugal wind wheel the 3rd embodiment of the present invention；
Fig. 6 is the top view of centrifugal wind wheel in Fig. 5；
Fig. 7 is the interference schematic diagram that the mechanical wave that vibration produces occurs behind two noise reduction holes.
Drawing reference numeral illustrates:
| Label | Title | Label | Title |
| 10 | Centrifugal wind wheel | 11 | Air inducing circle |
| 12 | Blade | 13 | Wheel hub |
| 14 | Spoke | 15 | Mounting disc |
| 130 | Installing hole | 131 | Rib |
| 141 | Noise reduction hole | 142 | Ring stiffener |
The realization of the object of the invention, functional characteristics and advantage will in conjunction with the embodiments, are described further referring to the drawings.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Describe, it is clear that described embodiment is only a part of embodiment of the present invention rather than whole embodiments wholely.Base
Embodiment in the present invention, those of ordinary skill in the art obtained under not making creative work premise all its
His embodiment, broadly falls into the scope of protection of the invention.
If it is to be appreciated that the embodiment of the present invention relates to directivity instruction (such as up, down, left, right, before and after ...),
Then directionality instruction be only used for explaining under a certain particular pose (as shown in drawings) relative position relation between each parts,
Motion conditions etc., if this particular pose changes, then directionality instruction changes the most therewith.
If it addition, the embodiment of the present invention relates to the description of " first ", " second " etc., then should " first ", " second " etc.
Description be only used for describing purpose, and it is not intended that instruction or imply its relative importance or implicit indicate indicated skill
The quantity of art feature.Thus, define " first ", the feature of " second " can express or implicitly include at least one this spy
Levy.It addition, the technical scheme between each embodiment can be combined with each other, but must be with those of ordinary skill in the art's energy
Enough be embodied as basis, when the combination of technical scheme occur conflicting maybe cannot realize time will be understood that the knot of this technical scheme
Close and do not exist, the most not within the protection domain of application claims.
The present invention proposes a kind of centrifugal wind wheel and is provided with the air-conditioner of this centrifugal wind wheel.
With reference to Fig. 1, centrifugal wind wheel 10 generally includes air inducing circle 11, blade 12 and blade seat, and the opposite end of blade 12 divides
Corresponding connection air inducing circle 11 and blade seat.Blade seat includes wheel hub 13, spoke and mounting disc 15, and spoke connects mounting disc 15 He
Wheel hub 13.
In embodiments of the present invention, as depicted in figs. 1 and 2, centrifugal wind wheel 10 includes wheel hub 13 and connects described wheel hub 13
Spoke, described spoke includes multiple spaced spoke 14, described spoke 14 has provided noise reduction hole 141.
Concrete, operationally, source of making an uproar is essentially from the most several aspects for centrifugal wind wheel 10.On the one hand, motor shaft and peace
There is portion gap in the inwall in dress hole 130, when centrifugal wind wheel 10 rotates, produces vibration between motor shaft and wheel hub 13.Separately
On the one hand, line voltage is unstable, easily produces harmonic wave, and the operating of motor can be impacted by this harmonic wave, by the shadow of this harmonic wave
Ringing, during motor high-speed rotation, necessarily lead to vibration between motor shaft and centrifugal wind wheel 10, this vibration can be by wheel hub 13
Conduction, to spoke, is then conducted to mounting disc 15 by spoke, then conducts to blade 12, and the noise that final blade 12 produces is relatively
Greatly.Another aspect, centrifugal wind wheel 10 operationally, the motor side of centrifugal wind wheel 10 and blade 12 side all can air intake, centrifugal wind wheel
10 inside easily produce eddy current, thus produce noise.
In the present embodiment, spoke 14 is offered noise reduction hole 141, on the one hand can reduce the internal stress of spoke 14, thus
Reducing the overall rigidity of spoke in design strength allowed band, the spoke made has more preferable toughness, can reduce spoke
The conduction of 14 pairs of vibrations.
Offering of noise reduction hole 141 can make the air of motor side and blade-side mutually circulate, thus reduces the formation of eddy current,
And then reduce the noise that eddy current produces.
In order to verify in the present embodiment, the perforate effect to wind wheel noise reduction, test with 6 centrifugal wind wheels 10, wherein, 3
Platform centrifugal wind wheel 10 is not offered 141,3, noise reduction hole centrifugal wind wheel 10 and is offered the noise reduction hole 141 (fall of 3 centrifugal wind wheels 10
Making an uproar hole 141, to offer quantity, position and size the most identical), carry 220v constant voltage to motor simultaneously, and measure simultaneously 6 from
The noise of heart-wind syndrome wheel 10 generation.
Table 1, centrifugal wind wheel noise contrast table before and after perforate
From this table it can be seen that the noise of centrifugal wind wheel 10 after offering noise reduction hole 141 averagely reduces 1.10dB.
Technical scheme, by offering noise reduction hole 141 on the spoke 14 of centrifugal wind wheel 10, on the one hand reduces
The rigidity of spoke 14, makes the dromotropy of vibration, and the air on the other hand making centrifugal wind wheel 10 blower fan side and blade 12 side is mutual
Circulation, thus reduce the formation of eddy current, above-mentioned two aspect reduces the noise of centrifugal wind wheel 10 jointly.
Referring to figs. 1 through Fig. 6, on the basis of a upper embodiment, in order to reduce the spoke 14 conduction to vibration further, in
In the present embodiment, each described spoke 14 is provided with noise reduction hole 141 described in two.The obstruct to Vibration propagation of the two noise reduction holes 141
Better.
The arrangement mode in two noise reduction holes 141 can be on the bearing of trend of described spoke 14 in being intervally arranged (such as Fig. 1 and
Fig. 2), it is also possible on spoke 14 bearing of trend, be arranged side by side (such as Fig. 3).
Two noise reduction holes 141, in being arranged side by side or being spaced setting, are equivalent to be applied with two blockages to vibration, can be further
Reduce the conduction of vibration.
With reference to Fig. 5 and Fig. 6, in order to reduce noise further, noise reduction hole 141 described in two is at the bearing of trend of described spoke 14
All it is set in distance with the circumference of described wheel hub 13.So, the mechanical wave that wheel hub 13 vibration produces conducting pathway on spoke 14
Footpath lengthens, and the amplitude of the mechanical wave being ultimately conducted on blade can weaken, thus reaches the effect of noise reduction.
It addition, further, with reference to Fig. 5 and Fig. 7, on the basis of a upper embodiment, in order to reduce noise, described take turns
The wavelength X of the mechanical wave that hub 13 produces, the spacing on the bearing of trend of described spoke 14 of the noise reduction hole 141 described in two is that L (works as spoke
When bar 14 is arc, L refers to the cambered surface distance between two through hole noise reduction hole), wherein L is the odd-multiple of λ.Specifically, vibration
By wheel hub 13 during spoke conducts, noise reduction hole 141 can produce Phase delay to mechanical wave, through two noise reduction holes 141
Mechanical wave will interfere, owing to L is the odd-multiple of λ, so, the mechanical wave through two noise reduction holes 141 can occur superposition phase
Disappear (crest and trough meet), such that it is able to be substantially reduced the conduction of vibration, noise is greatly reduced.
Here, λ is variable, different centrifugal wind wheels 10, its λ value is different, the motor of different rotating speeds, and λ value is the most not
With.So, as a example by air-conditioner, when air-conditioner normally works, the rated speed driving the motor of centrifugal wind wheel 10 rotation is general
For 850rpm, now centrifugal wind wheel can be driven to rotate 10 with the motor of 850rpm, and measure what now centrifugal wind wheel 10 produced
The wavelength X of mechanical wave, then based on the L odd-multiple as λ, offers noise reduction hole 141.
The shape in noise reduction hole 141 can be multiple, and such as waist-shaped hole, circular hole, square opening, tri-angle-holed and other are regular
Or irregular be all possible.
Furthermore, it is contemplated that centrifugal wind wheel 10 is when rotated, resonance between spoke, can be produced, to this end, in the present embodiment, described
The quantity of spoke 14 is that (referring to figs. 1 through Fig. 6, in centrifugal wind wheel, the quantity of spoke 14 is even number to odd number, and figure is intended only as ginseng
Examine signal, do not represent most preferred embodiment).Owing to bringing more because spoke 14 combination of odd number can be combined than the spoke 14 of even number
Many performance advantages.If the quantity of spoke 14 designs for even slice, and formed symmetry arrangement mode if, then not only make
The balance obtaining spoke 14 self is difficult to adjust, and spoke 14 can produce more resonance and make a noise, and even results in spoke
14 cannot bear the fatigue that resonance produces for a long time, finally occur that spoke 14 ruptures.Therefore, in the present embodiment, spoke 14
Quantity is odd number, such as: 3,5,7,9 the most.
Even if being odd number in view of odd number spoke 14, such as 9, namely three spokes 14 are one group, and one has three
Group, and resonance between these three groups of spokes 14, also can be occurred to produce noise.So, in the present embodiment, further, spoke
The quantity of 14 is odd number, such as 7,11,13 etc., so, can be substantially reduced the resonance between spoke 14, and noise is more
Low.
With reference to Fig. 3 and Fig. 4, centrifugal wind wheel 10 rotating speed is higher, offers noise reduction hole 141 and may result in noise reduction on spoke 14
Hole 141 periphery local strength weakens, and centrifugal wind wheel 10 operates for a long time and may result in noise reduction hole 141 periphery cracking.In this enforcement
In example, in order to strengthen the intensity of spoke 14, the lateral surface (towards the one side of motor) of described spoke 14, it is provided with and is positioned at described noise reduction
The ring stiffener 142 of hole 141 periphery.In the present embodiment, testing with 6 centrifugal wind wheels 10,6 centrifugal wind wheels 10 all exist
Offering noise reduction hole 141 (it is the most identical that quantity, position and size are offered in noise reduction hole 141) on spoke 14, wherein the back side of 3 is arranged
Ring stiffener 142, other 3 are not provided with ring stiffener 142.
Table 2, arranges centrifugal wind wheel noise contrast table before and after ring stiffener
By this table 2 it can be seen that arrange ring stiffener 142 after, the noise of centrifugal wind wheel 10 slightly raises.
The analysis of causes: before arranging ring stiffener 142, this is owing to ring stiffener 142 makes the whole of centrifugal wind wheel 10
Body rigidity strengthens again, and the effect that the benefit of perforate own is the biggest is contemplated to reduce the integral rigidity of centrifugal wind wheel 10, reduces
The transmission of vibration, is equivalent to reduce the beneficial effect in noise reduction hole 141 to a certain extent after arranging ring stiffener 142.As
Fruit is not provided with ring stiffener 142, and strong 10 degree of centrifugal wind wheel may can not meet requirement, causes centrifugal wind wheel 10 in rotation
Time the phenomenon that ruptures occurs.So in the case of less to noise effect, arranging ring stiffener 142 and can ensure raising
The service life of centrifugal wind wheel 10.
When the air of blower fan side enters centrifugal wind wheel 10 inside by noise reduction hole 141, the direction that air-flow enters is relatively mixed and disorderly, side
To mixed and disorderly air-flow enter centrifugal wind wheel 10 internal time easily produce eddy current, thus forming part noise.Ring stiffener is set
After 142, the air-flow that air-flow is entered by ring stiffener 142 from this noise reduction hole 141 has regulation effect, makes the airflow direction of entrance
Homogeneous, thus reduce the formation of eddy current, the most just reduce noise.
Centrifugal wind wheel 10 is when high speed rotating, and wheel hub 13 and spoke 14 are susceptible to deformation, so will cause inlet section
Uniformly, thus produce noise.In the present embodiment, the lateral surface of described wheel hub 13 is provided with radially extending along described wheel hub 13
Rib 131, the extending end of described rib 131 connects described ring stiffener 141.So, between wheel hub 13 and spoke 14
Bonding strength higher, the two is not easy to deform upon.
In a further preferred embodiment, described noise reduction hole 141 from the lateral surface of described spoke 14 towards the inner side of spoke 14
Face is that flaring is arranged.So, when air-flow enters centrifugal wind wheel 10 inside through noise reduction hole 141, the flow velocity of air-flow reduces, this air-flow
Reducing with the gas shock degree carrying out self-induced-air circle, the eddy current of formation is the most less, thus reaches the effect of noise reduction.
The foregoing is only the preferred embodiments of the present invention, not thereby limit the scope of the claims of the present invention, every at this
Under the inventive concept of invention, utilize the equivalent structure transformation that description of the invention and accompanying drawing content are made, or directly/indirectly use
The technical field relevant at other is included in the scope of patent protection of the present invention.
Claims (12)
1. a centrifugal wind wheel, including wheel hub and the spoke of the described wheel hub of connection, it is characterised in that described spoke includes multiple
Every the spoke arranged, described spoke provides noise reduction hole.
2. centrifugal wind wheel as claimed in claim 1, it is characterised in that be provided with noise reduction hole described in two on each described spoke.
3. centrifugal wind wheel as claimed in claim 2, it is characterised in that described in two, noise reduction hole is on the bearing of trend of described spoke
It is arranged side by side.
4. centrifugal wind wheel as claimed in claim 3, it is characterised in that described in two, noise reduction hole is on the bearing of trend of described spoke
In being intervally arranged.
5. centrifugal wind wheel as claimed in claim 4, it is characterised in that circumferentially-spaced at described wheel hub of noise reduction hole described in two
Arrangement.
6. centrifugal wind wheel as claimed in claim 5, it is characterised in that the wavelength of the mechanical wave that described hub vibrational produces is λ,
Described in two, noise reduction hole spacing on the bearing of trend of described spoke is the odd-multiple of λ.
7. centrifugal wind wheel as claimed in claim 1, it is characterised in that the quantity of described spoke is odd number.
8. centrifugal wind wheel as claimed in claim 7, it is characterised in that the quantity of described spoke is prime number.
9. centrifugal wind wheel as claimed in claim 1, it is characterised in that the lateral surface of described spoke is provided with and is positioned at described noise reduction hole
The ring stiffener of periphery.
10. centrifugal wind wheel as claimed in claim 9, it is characterised in that the lateral surface of described wheel hub is provided with along described wheel hub
The rib radially extended, the extending end of described rib connects described ring stiffener.
11. centrifugal wind wheels as claimed in claim 1, it is characterised in that described noise reduction hole from the lateral surface of described spoke towards
The medial surface of spoke is that flaring is arranged.
12. 1 kinds of air-conditioners, it is characterised in that include the centrifugal wind wheel as described in claim 1 to 11 any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610768769.7A CN106122087B (en) | 2016-08-30 | 2016-08-30 | Centrifugal wind wheel and air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610768769.7A CN106122087B (en) | 2016-08-30 | 2016-08-30 | Centrifugal wind wheel and air conditioner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106122087A true CN106122087A (en) | 2016-11-16 |
| CN106122087B CN106122087B (en) | 2020-01-14 |
Family
ID=57273214
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610768769.7A Active CN106122087B (en) | 2016-08-30 | 2016-08-30 | Centrifugal wind wheel and air conditioner |
Country Status (1)
| Country | Link |
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| CN (1) | CN106122087B (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19531160A1 (en) * | 1995-08-24 | 1997-02-27 | Behr Gmbh & Co | Rotor for radial fan, especially for vehicle air conditioning systems |
| DE19905075A1 (en) * | 1999-02-08 | 2000-08-17 | Valeo Klimasysteme Gmbh | Ventilator rotor esp. for heater/air conditioner plant in motor vehicles ha deformable vibration damping elstomer part to connect hub to bore in rotor center |
| DE19907910A1 (en) * | 1999-02-24 | 2000-09-07 | Valeo Klimasysteme Gmbh | Fan wheel with hub and peripheral sectors, joined by webs at least partly curved in projection plane parallel to rotation plane of fan wheel |
| JP2003097488A (en) * | 2001-09-27 | 2003-04-03 | Hitachi Ltd | Centrifugal air blower and air conditioner |
| KR20070100019A (en) * | 2006-04-06 | 2007-10-10 | 엘지전자 주식회사 | Indoor unit of air conditioner |
| CN202659562U (en) * | 2012-06-04 | 2013-01-09 | 广东美的制冷设备有限公司 | Eccentric wind wheel and air processing device with same |
| CN204591782U (en) * | 2015-02-06 | 2015-08-26 | 一汽-法雷奥汽车空调有限公司 | Blower wheel and comprise the blower of this impeller |
| CN204783822U (en) * | 2014-07-10 | 2015-11-18 | 松下知识产权经营株式会社 | Centrifugal aerator |
| CN204921467U (en) * | 2015-09-07 | 2015-12-30 | 珠海格力电器股份有限公司 | Centrifugation impeller, wind channel part and have its cabinet air conditioner |
| CN105257592A (en) * | 2015-09-25 | 2016-01-20 | 宁波朗迪叶轮机械有限公司 | Injection molding centrifugal fan blade for air conditioner |
| CN105275871A (en) * | 2014-06-26 | 2016-01-27 | 珠海格力电器股份有限公司 | Centrifugal wind wheel and air conditioner with same |
| CN206017258U (en) * | 2016-08-30 | 2017-03-15 | 芜湖美智空调设备有限公司 | Centrifugal wind wheel and air-conditioner |
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2016
- 2016-08-30 CN CN201610768769.7A patent/CN106122087B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19531160A1 (en) * | 1995-08-24 | 1997-02-27 | Behr Gmbh & Co | Rotor for radial fan, especially for vehicle air conditioning systems |
| DE19905075A1 (en) * | 1999-02-08 | 2000-08-17 | Valeo Klimasysteme Gmbh | Ventilator rotor esp. for heater/air conditioner plant in motor vehicles ha deformable vibration damping elstomer part to connect hub to bore in rotor center |
| DE19907910A1 (en) * | 1999-02-24 | 2000-09-07 | Valeo Klimasysteme Gmbh | Fan wheel with hub and peripheral sectors, joined by webs at least partly curved in projection plane parallel to rotation plane of fan wheel |
| JP2003097488A (en) * | 2001-09-27 | 2003-04-03 | Hitachi Ltd | Centrifugal air blower and air conditioner |
| KR20070100019A (en) * | 2006-04-06 | 2007-10-10 | 엘지전자 주식회사 | Indoor unit of air conditioner |
| CN202659562U (en) * | 2012-06-04 | 2013-01-09 | 广东美的制冷设备有限公司 | Eccentric wind wheel and air processing device with same |
| CN105275871A (en) * | 2014-06-26 | 2016-01-27 | 珠海格力电器股份有限公司 | Centrifugal wind wheel and air conditioner with same |
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| CN105257592A (en) * | 2015-09-25 | 2016-01-20 | 宁波朗迪叶轮机械有限公司 | Injection molding centrifugal fan blade for air conditioner |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN106122087B (en) | 2020-01-14 |
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