CN103573701A - 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
- Publication number
- CN103573701A CN103573701A CN201210270453.7A CN201210270453A CN103573701A CN 103573701 A CN103573701 A CN 103573701A CN 201210270453 A CN201210270453 A CN 201210270453A CN 103573701 A CN103573701 A CN 103573701A
- Authority
- CN
- China
- Prior art keywords
- wind wheel
- blade
- side plate
- air intake
- blades
- 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.)
- Pending
Links
Images
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 quantity of the first blades is identical to that of the second blades, and each first blade is shorter than each second blade. The volute comprises a first side plate close 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 each first blade is shorter than each second blade under the condition that the quantity of the first blades is identical to that of the second blades, so that the wind inlet and outlet quantities and wind speeds are uniformly distributed on the blades in unit axial length of the integral wind wheel when the fan runs, the wind 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 indoor machine and two-way air intake centrifugal wind wheel thereof.
Background technique
For the air conditioner that uses bidirectional air inlet centrifugal fan as blower part, because the housing 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 intake grill of its relatively more close a certain side of blower fan, air intake to this side causes resistance, and the air output of this side intake grill is little; And blower fan opposite side intake grill does not have resistance, its air output is larger.The wind wheel core dish of the two-way air intake centrifugal wind wheel of conventional bidirectional air inlet centrifugal fan is all arranged on the centre of wind wheel axial direction, be 1/2H place (axial length that H is centrifugal wind wheel), that is to say, the wind wheel blade length being distributed on the relative both sides of wind wheel core dish is the same.Because the air output of blower fan arranged on left and right sides is different, therefore the turnover air quantity of unit length of blade is also just different 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 quantity of described the first blade is identical with the quantity of described the second blade, and the length of described the first blade is less than the length of described the second blade.
Another object of the embodiment of the present invention is to provide a kind of air conditioner indoor machine, 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 intake grill, described the second side plate offers the second intake grill, described air conditioner indoor machine also comprises the drive motor that is installed on described the first side plate and is arranged at described the first intake grill place.
In the situation that the first blade is identical with the quantity of the second blade, the length of described the first blade is less than the length of described the second blade, make near the first length of blade of drive motor side less, make the second length of blade of drive motor side dorsad long, 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 motor is installed the impact on a certain side air intake of blower fan, cause blower fan to enter, the abnormal sounds such as air-out inhomogeneous caused " puff puff " surge sound, noise while reducing air conditioner work, improved the travelling comfort of air conditioner.
Accompanying drawing explanation
Fig. 1 is the stereogram of the air conditioner indoor machine that provides of the embodiment of the present invention.
Fig. 2 is the stereogram of another angle of the air conditioner indoor machine of Fig. 1.
Fig. 3 is the stereogram of bidirectional air inlet centrifugal fan of the air conditioner indoor machine 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 indoor machine of Fig. 1.
Fig. 5 is the side view of two-way air intake centrifugal wind wheel of the air conditioner indoor machine of Fig. 4.
Fig. 6 is the plan view of two-way air intake centrifugal wind wheel of the air conditioner indoor machine of Fig. 4.
Fig. 7 is the sectional view of A-A along the line of two-way air intake centrifugal wind wheel of the air conditioner indoor machine of Fig. 6.
Embodiment
In order to make object of the present invention, technological 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. 7, the embodiment of the present invention provides a kind of air conditioner indoor machine 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 quantity of described the first blade 54 is identical with the quantity of described the second blade 55.The length of described the first blade 54 is less than the length 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 intake grill 43.Described the second side plate 42 offers the second intake grill 44.Described air conditioner indoor machine 100 also comprises the drive motor 60 that is installed on described the first side plate 41 and is arranged at described the first intake grill 43 places.
In the situation that the first blade 54 is identical with the quantity of the second blade 55, the length of described the first blade 54 is less than the length of described the second blade 55, make near the first blade 54 length of drive motor 60 1 sides less, make the second blade 55 length of drive motor 60 1 sides dorsad long, when blower fan 30 operation, blade turnover air quantity and the wind speed profile of whole wind wheel 50 axially upper unit lengths are tending towards even, blower fan 30 operations tend to be steady, eliminated conventional design because drive motor 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 indoor machine 100 work, improved the travelling comfort of air conditioner indoor machine 100.
Described air conditioner indoor machine 100 also comprises described drive motor 60 is installed on to the electric machine support 70 on described the first side plate 41.Described electric machine support 70 comprises by fixed block 90 and is fixed on the some mounting arms 71 on described the first side plate 41.In the present embodiment, described fixed block 90 is bolt, and in other embodiments, described fixed block 90 can be the object that other can play fixation, for example, and screw.In the present embodiment, described mounting arm 71 is set to three, and evenly interval is fixed on described the first side plate 41.In other embodiments, described mounting arm 71 can arrange other quantity.
Described drive motor 60 is positioned at described the first intake grill 43 center, and extraneous air-flow is entered by the surrounding of described drive motor 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, and 0.32H≤h≤0.44H.
Described wind wheel core dish 51 is arranged within the scope of 0.32H≤h≤0.44H, when blower fan 30 operation, blade turnover air quantity and the wind speed profile of whole wind wheel 50 axially upper unit lengths are more even, fan operation is more steady, eliminated conventional design because drive motor 60 installations cause the abnormal sounds such as blower fan 30 outlet and inlets inhomogeneous caused " puff puff " surge sound on the impact of a certain side air intake of blower fan 30, reduce noise when air conditioner indoor machine 100 is worked, improved the travelling comfort of air conditioner indoor machine 100.
Preferably, h=0.382H, that is to say, described wind wheel core dish 51 becomes golden section proportion with the distance h of described first round circle 56 and the axial length H of described two-way air intake centrifugal wind wheel 50, also, be arranged on wind wheel core dish 51 and become golden section proportion with respect to the first blade 54 of both sides with the length of the second blade 55.
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 61 for described drive motor 60 passes.Described axle sleeve 58 comprises the first paragraph 580 outside the first side 52 that stretches out in described wind wheel core dish 51 and stretches out in the second segment 581 outside the second side 53 of described wind wheel core dish 51.Circumferentially offering of the second segment 581 of described axle sleeve 58 used for a plug-in unit (not shown) through wherein also fixing the hole 582 of the output shaft 61 of described drive motor 60.Described hole 582 is interconnected with described through hole 59.
Described drive motor 60 and described hole 582 are positioned at the relative both sides of described wind wheel core dish 51, and when centrifugal wind wheel 50 is installed with drive motor 60, hand or instrument can put in easily to be installed fixingly, has increased the present invention program's exploitativeness.The distance of described hole 582 center and described first round circle 56 is L, and wherein, 0.44H≤L≤0.8H, can control the axial length of described axle sleeve 58.Preferably, L=0.467H.
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 (9)
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 quantity of described the first blade is identical with the quantity of described the second blade, and the length of described the first blade is less than the length of described the second blade.
2. 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, 0.32H≤h≤0.44H.
3. two-way air intake centrifugal wind wheel as claimed in claim 2, is characterized in that: h=0.382H.
4. two-way air intake centrifugal wind wheel as claimed in claim 2, 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, described axle sleeve comprises the first paragraph outside the first side that stretches out in described wind wheel core dish and stretches out in the second segment outside the second side of described wind wheel core dish, circumferentially offering of the second segment of described axle sleeve used for a plug-in unit through wherein also fixing the hole of the output shaft of described motor, described hole and described through hole are interconnected.
5. two-way air intake centrifugal wind wheel as claimed in claim 4, is characterized in that: the distance of the center of described hole and described first round circle is L, wherein, and 0.44H≤L≤0.8H.
6. two-way air intake centrifugal wind wheel as claimed in claim 5, is characterized in that: L=0.467H.
7. an air conditioner indoor machine, 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 1-6 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 intake grill, described the second side plate offers the second intake grill, described air conditioner indoor machine also comprises the drive motor that is installed on described the first side plate and is arranged at described the first intake grill place.
8. air conditioner indoor machine as claimed in claim 7, it is characterized in that: described air conditioner indoor machine also comprises described drive motor is installed on to the electric machine support on described the first side plate, described electric machine support comprises by fixed block and is fixed on the some mounting arms on described the first side plate.
9. air conditioner indoor machine as claimed in claim 7, is characterized in that: described drive motor is positioned at the center of described the first intake grill.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210270453.7A CN103573701A (en) | 2012-07-30 | 2012-07-30 | Indoor unit of air conditioner and bidirectional inlet centrifugal wind wheel of indoor unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210270453.7A CN103573701A (en) | 2012-07-30 | 2012-07-30 | Indoor unit of air conditioner and bidirectional inlet centrifugal wind wheel of indoor unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103573701A true CN103573701A (en) | 2014-02-12 |
Family
ID=50046223
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210270453.7A Pending CN103573701A (en) | 2012-07-30 | 2012-07-30 | Indoor unit of air conditioner and bidirectional inlet centrifugal wind wheel of indoor unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103573701A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104564807A (en) * | 2014-12-26 | 2015-04-29 | 珠海格力电器股份有限公司 | Fixing structure for centrifugal fan blade and air conditioner |
| CN105091273A (en) * | 2014-04-19 | 2015-11-25 | 海信（山东）空调有限公司 | Air-conditioning duct system and air-conditioning indoor unit |
| CN105386996A (en) * | 2015-11-30 | 2016-03-09 | 青岛海尔空调器有限总公司 | Centrifugal fan used for air conditioner indoor unit and air conditioner indoor unit |
| CN106678077A (en) * | 2017-02-15 | 2017-05-17 | 深圳福世达动力科技有限公司 | Porous structure type light impeller |
| CN108374795A (en) * | 2018-02-24 | 2018-08-07 | 西安交通大学 | A kind of two-way multi-wing centrifugal fan formula air interchanger of double-entry and its working method |
| CN108443220A (en) * | 2017-02-16 | 2018-08-24 | 建准电机工业股份有限公司 | Blowing fan, blowing fan assembly and fan wheel thereof |
| CN113137381A (en) * | 2020-01-19 | 2021-07-20 | 广东美的环境电器制造有限公司 | Centrifugal fan for bladeless air supply device |
| CN113137386A (en) * | 2020-01-19 | 2021-07-20 | 广东美的环境电器制造有限公司 | Air supply device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1938521A (en) * | 2004-04-09 | 2007-03-28 | Lg电子株式会社 | Fan for air conditioner |
| CN201013656Y (en) * | 2006-09-18 | 2008-01-30 | 刘一宪 | Bidirectional air-intake wind wheel structure |
| 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 CN201210270453.7A patent/CN103573701A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1938521A (en) * | 2004-04-09 | 2007-03-28 | Lg电子株式会社 | Fan for air conditioner |
| CN201013656Y (en) * | 2006-09-18 | 2008-01-30 | 刘一宪 | Bidirectional air-intake wind wheel structure |
| 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 |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105091273A (en) * | 2014-04-19 | 2015-11-25 | 海信（山东）空调有限公司 | Air-conditioning duct system and air-conditioning indoor unit |
| CN104564807A (en) * | 2014-12-26 | 2015-04-29 | 珠海格力电器股份有限公司 | Fixing structure for centrifugal fan blade and air conditioner |
| CN105386996A (en) * | 2015-11-30 | 2016-03-09 | 青岛海尔空调器有限总公司 | Centrifugal fan used for air conditioner indoor unit and air conditioner indoor unit |
| CN106678077A (en) * | 2017-02-15 | 2017-05-17 | 深圳福世达动力科技有限公司 | Porous structure type light impeller |
| CN108443220A (en) * | 2017-02-16 | 2018-08-24 | 建准电机工业股份有限公司 | Blowing fan, blowing fan assembly and fan wheel thereof |
| CN108374795A (en) * | 2018-02-24 | 2018-08-07 | 西安交通大学 | A kind of two-way multi-wing centrifugal fan formula air interchanger of double-entry and its working method |
| CN108374795B (en) * | 2018-02-24 | 2019-08-23 | 西安交通大学 | A kind of two-way multi-wing centrifugal fan formula air interchanger of double-entry and its working method |
| CN113137381A (en) * | 2020-01-19 | 2021-07-20 | 广东美的环境电器制造有限公司 | Centrifugal fan for bladeless air supply device |
| CN113137386A (en) * | 2020-01-19 | 2021-07-20 | 广东美的环境电器制造有限公司 | Air supply device |
| CN113137386B (en) * | 2020-01-19 | 2024-04-05 | 广东美的环境电器制造有限公司 | Air supply device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103573701A (en) | Indoor unit of air conditioner and bidirectional inlet centrifugal wind wheel of indoor unit | |
| US9017011B2 (en) | Furnace air handler blower with enlarged backward curved impeller and associated method of use | |
| CN104024649B (en) | Aerofoil fan | |
| US10052931B2 (en) | Outdoor cooling unit in vehicle air-conditioning apparatus | |
| US9611860B2 (en) | Centrifugal fan and air conditioner using the same | |
| EP2878892B1 (en) | Indoor unit for air conditioner, and air conditioner with indoor unit | |
| US20160153457A1 (en) | Fan assembly for centrifugal blower and air conditioning apparatus including the same | |
| US20080187439A1 (en) | Blower assembly with pre-swirler | |
| EP3382290B1 (en) | Air conditioner | |
| US10458417B2 (en) | Centrifugal fan with axial-flow wind | |
| CN203867933U (en) | Air purifier and fan thereof | |
| CN203670288U (en) | Air purifier and fan thereof | |
| CN107747565B (en) | Air duct component of cross flow wind wheel and tower fan | |
| JP5659406B2 (en) | Cross flow fan | |
| CN103574764A (en) | Indoor unit of air conditioner and bidirectional inlet centrifugal wind wheel of indoor unit | |
| CN102261342A (en) | Centrifugal fan with external motor | |
| CN109026765A (en) | Impeller, centrifugal blower and range hood for centrifugal blower | |
| CN102109192A (en) | Range hood with noise reduction structure | |
| CN204827981U (en) | High -efficient mixed flow fan | |
| CN211737483U (en) | Mute ventilator | |
| CN112443967B (en) | Air supply device | |
| CN203604223U (en) | Draught fan mechanism | |
| CN105757418B (en) | Rotary limit device and household electrical appliance | |
| CN202157981U (en) | External centrifugal fan of motor | |
| CN219955505U (en) | Fan structure and air conditioner |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20140212 |