CN103574764A - Indoor unit of air conditioner and bidirectional inlet centrifugal wind wheel of indoor unit - Google Patents
Indoor unit of air conditioner and bidirectional inlet centrifugal wind wheel of indoor unit Download PDFInfo
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- CN103574764A CN103574764A CN201210266360.7A CN201210266360A CN103574764A CN 103574764 A CN103574764 A CN 103574764A CN 201210266360 A CN201210266360 A CN 201210266360A CN 103574764 A CN103574764 A CN 103574764A
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- wind wheel
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- side plate
- blades
- air intake
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Abstract
The invention provides an indoor unit of an air conditioner. The indoor unit comprises a shell, a heat exchanger, a bidirectional inlet centrifugal fan and a driving motor. The heat exchanger and the bidirectional inlet centrifugal fan are arranged in the shell, the bidirectional inlet centrifugal fan comprises a volute and a bidirectional inlet centrifugal wind wheel arranged in the volute, the centrifugal wind wheel comprises a core disc, a plurality of first blades and a plurality of second blades, the first blades are arranged at the peripheral edge of a first side surface of the core disc, the second blades are arranged at the peripheral edge of a second side surface of the core disc, the length of each first blade is identical to that of each second blade, and the quantity of the first blades is higher than that of the second blades. The volute comprises a first side plate adjacent to the first blades, a first wind inlet is formed in the first side plate, and the driving motor is mounted on the first side plate. The indoor unit has the advantages that the quantity of the first blades is higher than that of the second blades under the condition that the length of each first blade is identical to that of each second blade, wind inlet and outlet quantities and wind speeds of the blades in axial unit length of the integral wind wheel are uniformly distributed when the fan runs, accordingly, the fan can run stably, and abnormal sound such as 'Pupu' surge sound can be eliminated.
Description
Technical field
The invention belongs to air-conditioner field, relate in particular to a kind of air conditioner room unit and two-way air intake centrifugal wind wheel thereof.
Background technology
For the air-conditioner that uses bidirectional air inlet centrifugal fan as blower part, because the body structure size of air-conditioner need to, motor is all generally that device is in a side of the spiral case of blower fan, the air inlet of its relatively more close a certain side of blower fan, air intake to this side causes resistance, and the intake of this side air inlet is little; And blower fan opposite side air inlet does not have resistance, its intake is larger.If method for designing arranges identical by the lobe numbers of wind wheel core dish left and right side routinely; therefore unit length of blade is also just different into and out of air quantity on wind wheel axial direction; wind speed profile is also inhomogeneous, when fan operation, usually can cause abnormal sound, as surge " puff puff " sound etc.
Summary of the invention
The object of the embodiment of the present invention is to provide a kind of two-way air intake centrifugal wind wheel, the problem of the different sound of caused surge when solving being obstructed because of a side air intake of existing in prior art.
The embodiment of the present invention is to realize like this, a kind of two-way air intake centrifugal wind wheel, it comprises wind wheel core dish, described wind wheel core dish has the first side and second side relative with described the first side, described two-way air intake centrifugal wind wheel also comprise the first side that is arranged at described wind wheel core dish periphery some the first blades and be arranged at some second blades of periphery of the second side of described wind wheel core dish, the length of described the first blade is identical with the length of described the second blade, and the quantity of described the first blade is more than the quantity of described the second blade.
Another object of the embodiment of the present invention is to provide a kind of air conditioner room unit, it comprises housing and is arranged at heat exchanger and the bidirectional air inlet centrifugal fan in described housing, described bidirectional air inlet centrifugal fan comprises spiral case and is arranged at the above-mentioned two-way air intake centrifugal wind wheel in described spiral case, described spiral case comprises the second side plate that is close to the first side plate of described the first blade and is oppositely arranged and is close to described the second blade with described the first side plate, described the first side plate offers the first air inlet, described the second side plate offers the second air inlet, described air conditioner room unit also comprises the drive motors that is installed on described the first side plate and is arranged at described the first air inlet place.
In the situation that the first blade is identical with the length of the second blade, the quantity of described the first blade is more than the quantity of described the second blade, make near the first blade quantity of drive motors side more, make the second blade quantity of drive motors side dorsad fewer, when fan operation, make progress blade turnover air quantity and the wind speed profile of unit length of whole rotor shaft is even, fan operation is steady, eliminated conventional design because drive motors installation causes blower fan to enter on the impact of a certain side air intake of blower fan, the abnormal sounds such as air-out inhomogeneous caused " puff puff " surge sound, noise while reducing air conditioner room unit work, improved the comfortableness of air conditioner room unit.
Accompanying drawing explanation
Fig. 1 is the stereogram of the air conditioner room unit that provides of the embodiment of the present invention.
Fig. 2 is the stereogram of another angle of the air conditioner room unit of Fig. 1.
Fig. 3 is the stereogram of bidirectional air inlet centrifugal fan of the air conditioner room unit of Fig. 1.
Fig. 4 is the stereogram of two-way air intake centrifugal wind wheel of bidirectional air inlet centrifugal fan of the air conditioner room unit of Fig. 1.
Fig. 5 is the side view of two-way air intake centrifugal wind wheel of the air conditioner room unit of Fig. 4.
The specific embodiment
In order to make object of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
Please refer to Fig. 1 to Fig. 5, the embodiment of the present invention provides a kind of air conditioner room unit 100, and it comprises housing 10 and is arranged at heat exchanger 20 and the bidirectional air inlet centrifugal fan 30 in described housing 10.Described bidirectional air inlet centrifugal fan 30 comprises spiral case 40 and is arranged at the two-way air intake centrifugal wind wheel 50 in described spiral case 40.
Described two-way air intake centrifugal wind wheel 50 comprises wind wheel core dish 51.Described wind wheel core dish 51 has the first side 52 and second side 53 relative with described the first side 52.Described two-way air intake centrifugal wind wheel 50 also comprise the first side 52 that is arranged at described wind wheel core dish 51 periphery some the first blades 54 and be arranged at some second blades 55 of periphery of the second side 53 of described wind wheel core dish 51.The length of described the first blade 54 is identical with the length of described the second blade 55.The quantity of described the first blade 54 is more than the quantity of described the second blade 55.
Described spiral case 40 comprises the second side plate 42 that is close to the first side plate 41 of described the first blade 54 and is oppositely arranged and is close to described the second blade 55 with described the first side plate 41.Described the first side plate 41 offers the first air inlet 43.Described the second side plate 42 offers the second air inlet 44.Described air conditioner room unit 100 also comprises the drive motors 60 that is installed on described the first side plate 41 and is arranged at described the first air inlet 43 places.
In the situation that the first blade 54 is identical with the length of the second blade 55, the quantity of described the first blade 54 is more than the quantity of described the second blade 55, make near the first blade 54 quantity of drive motors 60 1 sides more, make the second blade 55 quantity of drive motors 60 1 sides dorsad fewer, when blower fan 30 operation, blade turnover air quantity and the wind speed profile of whole wind wheel 50 axially upper unit lengths are even, blower fan 30 operates steadily, eliminated conventional design because drive motors 60 installations cause blower fan 30 to enter on the impact of a certain side air intake of blower fan 30, the abnormal sounds such as air-out inhomogeneous caused " puff puff " surge sound, noise while reducing air conditioner room unit 100 work, improved the comfortableness of air conditioner room unit 100.
Described air conditioner room unit 100 also comprises described drive motors 60 is installed on to the electric machine support 70 on described the first side plate 41.Described electric machine support 70 comprises by fixture 90 and is fixed on the some hold-down arms 71 on described the first side plate 41.In the present embodiment, described fixture 90 is bolt, and in other embodiments, described fixture 90 can be the object that other can play fixation, for example, and screw.In the present embodiment, described hold-down arm 71 is set to three, and evenly interval is fixed on described the first side plate 41.In other embodiments, described hold-down arm 71 can arrange other quantity.
Described drive motors 60 is positioned at described the first air inlet 43 center, and extraneous air-flow is entered by the surrounding of described drive motors 60 equably.
Described two-way air intake centrifugal wind wheel 50 also comprise the first round circle 56 of the end away from described wind wheel core dish 51 that connects each the first blade 54 and connect each the second blade 55 the end away from described wind wheel core dish 51 second take turns circle 57.The axial length of described two-way air intake centrifugal wind wheel 50 is H, and described wind wheel core dish 51 is h with the distance of described first round circle 56, wherein, h=0.5H, described wind wheel core dish 51 is between described the first blade 54 and the second blade 55.
The number of described the first blade 54 is n, and the number of described the second blade 55 is m, wherein, and n-30≤m≤n-1.Further, 36≤n≤76.In the present embodiment, the quantity n of described the first blade 54 is 41, and the number m of described the second blade 55 is 20.
Described two-way air intake centrifugal wind wheel 50 also comprises the axle sleeve 58 being embedded on described wind wheel core dish 51.Described axle sleeve 58 offers along the direction perpendicular to described wind wheel core dish 51 through hole 59 that the output shaft for described drive motors 60 passes.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any modifications of doing within the spirit and principles in the present invention, be equal to and replace and improvement etc., within all should being included in protection scope of the present invention.
Claims (8)
1. a two-way air intake centrifugal wind wheel, it comprises wind wheel core dish, described wind wheel core dish has the first side and second side relative with described the first side, it is characterized in that: described two-way air intake centrifugal wind wheel also comprise the first side that is arranged at described wind wheel core dish periphery some the first blades and be arranged at some second blades of periphery of the second side of described wind wheel core dish, the length of described the first blade is identical with the length of described the second blade, and the quantity of described the first blade is more than the quantity of described the second blade.
2. two-way air intake centrifugal wind wheel as claimed in claim 1, is characterized in that: the number of described the first blade is n, and the number of described the second blade is m, wherein, and n-30≤m≤n-1.
3. two-way air intake centrifugal wind wheel as claimed in claim 2, is characterized in that: 36≤n≤76.
4. two-way air intake centrifugal wind wheel as claimed in claim 1, it is characterized in that: described two-way air intake centrifugal wind wheel also comprise the first round circle of the end away from described wind wheel core dish that connects each the first blade and connect each the second blade the end away from described wind wheel core dish second take turns circle, the axial length of described two-way air intake centrifugal wind wheel is H, the distance of described wind wheel core dish and described first round circle is h, wherein, h=0.5H.
5. the two-way air intake centrifugal wind wheel as described in claim 1-4 any one, it is characterized in that: described two-way air intake centrifugal wind wheel also comprises the axle sleeve being embedded on described wind wheel core dish, described axle sleeve offers the through hole passing for the output shaft for a motor along the direction perpendicular to described wind wheel core dish.
6. an air conditioner room unit, it comprises housing and is arranged at heat exchanger and the bidirectional air inlet centrifugal fan in described housing, it is characterized in that: described bidirectional air inlet centrifugal fan comprises spiral case and is arranged at the two-way air intake centrifugal wind wheel as described in claim 1-5 any one in described spiral case, described spiral case comprises the second side plate that is close to the first side plate of described the first blade and is oppositely arranged and is close to described the second blade with described the first side plate, described the first side plate offers the first air inlet, described the second side plate offers the second air inlet, described air conditioner room unit also comprises the drive motors that is installed on described the first side plate and is arranged at described the first air inlet place.
7. air conditioner room unit as claimed in claim 6, it is characterized in that: described air conditioner room unit also comprises described drive motors is installed on to the electric machine support on described the first side plate, described electric machine support comprises by fixture and is fixed on the some hold-down arms on described the first side plate.
8. air conditioner room unit as claimed in claim 6, is characterized in that: described drive motors is positioned at the center of described the first air inlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210266360.7A CN103574764B (en) | 2012-07-30 | 2012-07-30 | Air conditioner room unit and two-way air intake centrifugal wind wheel thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210266360.7A CN103574764B (en) | 2012-07-30 | 2012-07-30 | Air conditioner room unit and two-way air intake centrifugal wind wheel thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103574764A true CN103574764A (en) | 2014-02-12 |
| CN103574764B CN103574764B (en) | 2016-03-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210266360.7A Active CN103574764B (en) | 2012-07-30 | 2012-07-30 | Air conditioner room unit and two-way air intake centrifugal wind wheel thereof |
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| CN (1) | CN103574764B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105526691A (en) * | 2016-01-08 | 2016-04-27 | 广东美的制冷设备有限公司 | Wind guide assembly and axial-flow cabinet |
| CN107208923A (en) * | 2014-10-27 | 2017-09-26 | 加布里埃尔·加涅-马科特 | Push-pull type counterflow heat exchanger |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6441408U (en) * | 1985-11-28 | 1989-03-13 | ||
| KR20050114838A (en) * | 2004-06-02 | 2005-12-07 | 한라공조주식회사 | Centrifugal dual fan of air conditioner for vehicle |
| CN1938521A (en) * | 2004-04-09 | 2007-03-28 | Lg电子株式会社 | Fan for air conditioner |
| KR20080027633A (en) * | 2006-09-25 | 2008-03-28 | 한라공조주식회사 | Both-way inlet type blower unit |
| CN201071831Y (en) * | 2007-06-08 | 2008-06-11 | 杭州奥普卫厨科技有限公司 | Double side wind suction wheel |
| CN201407207Y (en) * | 2009-04-24 | 2010-02-17 | 广东美的电器股份有限公司 | Multi-blade centrifugal wind wheel |
| CN101725550A (en) * | 2008-10-13 | 2010-06-09 | 三星电子株式会社 | Centrifugal fan and air conditioner having the same |
| CN202250933U (en) * | 2011-08-23 | 2012-05-30 | 李致真 | Two-way air intake centrifugal fan |
-
2012
- 2012-07-30 CN CN201210266360.7A patent/CN103574764B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6441408U (en) * | 1985-11-28 | 1989-03-13 | ||
| CN1938521A (en) * | 2004-04-09 | 2007-03-28 | Lg电子株式会社 | Fan for air conditioner |
| KR20050114838A (en) * | 2004-06-02 | 2005-12-07 | 한라공조주식회사 | Centrifugal dual fan of air conditioner for vehicle |
| KR20080027633A (en) * | 2006-09-25 | 2008-03-28 | 한라공조주식회사 | Both-way inlet type blower unit |
| CN201071831Y (en) * | 2007-06-08 | 2008-06-11 | 杭州奥普卫厨科技有限公司 | Double side wind suction wheel |
| CN101725550A (en) * | 2008-10-13 | 2010-06-09 | 三星电子株式会社 | Centrifugal fan and air conditioner having the same |
| CN201407207Y (en) * | 2009-04-24 | 2010-02-17 | 广东美的电器股份有限公司 | Multi-blade centrifugal wind wheel |
| CN202250933U (en) * | 2011-08-23 | 2012-05-30 | 李致真 | Two-way air intake centrifugal fan |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107208923A (en) * | 2014-10-27 | 2017-09-26 | 加布里埃尔·加涅-马科特 | Push-pull type counterflow heat exchanger |
| CN105526691A (en) * | 2016-01-08 | 2016-04-27 | 广东美的制冷设备有限公司 | Wind guide assembly and axial-flow cabinet |
| CN105526691B (en) * | 2016-01-08 | 2019-03-26 | 广东美的制冷设备有限公司 | Wind guiding component and axis stream cabinet-type air conditioner |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103574764B (en) | 2016-03-02 |
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