CN202520656U - Centrifugal fan volute of air conditioner - Google Patents
Centrifugal fan volute of air conditioner Download PDFInfo
- Publication number
- CN202520656U CN202520656U CN2012200937843U CN201220093784U CN202520656U CN 202520656 U CN202520656 U CN 202520656U CN 2012200937843 U CN2012200937843 U CN 2012200937843U CN 201220093784 U CN201220093784 U CN 201220093784U CN 202520656 U CN202520656 U CN 202520656U
- Authority
- CN
- China
- Prior art keywords
- volute
- air conditioner
- spiral case
- centrifugal blower
- box body
- 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.)
- Expired - Fee Related
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 5
- 241000237858 Gastropoda Species 0.000 claims description 15
- 239000006200 vaporizer Substances 0.000 claims description 8
- 238000004378 air conditioning Methods 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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Abstract
A centrifugal fan volute of an air conditioner comprises an air conditioner box body, an evaporator arranged at an air outlet of the box body, a water receiving disc positioned between the bottom of the box body and the evaporator, the centrifugal fan volute installed in front of an air inlet of the box body and a filter screen positioned at the air inlet of the box body, wherein a centrifugal wind wheel is arranged in the centrifugal fan volute, and the centrifugal fan volute is characterized in that the inner wall profile of a volute air channel is in an involute direction, part of the volute is a conventional Archimedes spiral line, and part of the volute is one section or multiple sections of straight line. The position interval of the straight line segment is along the direction of the involute, and the included angle between the straight line segment and the volute tongue is between 0 degree and 300 degrees. The utility model discloses when the height dimension H of air conditioner box or spiral case length dimension L received serious restriction, fine assurance spiral case opening A did not receive the interference, realized that spiral case major part parting line reaches the best opening A phi. Therefore, the noise can be reduced under the condition that the air quantity is improved or not reduced.
Description
Technical field
The utility model relates to a kind of air conditioner, specifically is the centrifugal blower volute of air conditioner.
Background technique
Tradition centrifugal blower volute air channel inwall molded lines is a spiral of Archimedes, the spiral case opening width A=R-R2=R2 at its arbitrarily angled φ i place [m φ+1/2 (m φ)
2+ 1/6 (m φ)
3+ ... ].R2 is the radius of spiral case basic circle 3, and Coefficient m is relevant with the specific speed ns of blower fan.Belong to middle low-specific-speed ventilator for the idle call centrifugal blower, following formula can be reduced to A φ=R2m φ, is an approximate spiral of Archimedes.At the air conditioning box body specification regularly, the radial dimension of ventilator also just is restricted, and the end of a period cross section opening width A of snail shell coiling line will receive strict pining down.In order to keep the gradually property opened of flow section, normally whole size of dwindling spiral case, thus can not realize the opening width that spiral case is best, cause fan delivery little, input power is big, and noise is big, causes spiral case can't play best guide functions.Therefore, be necessary to do further improvement.
The model utility content
The purpose of the utility model aims to provide that a kind of fan delivery is big, and input power is little, and the centrifugal blower volute of the air conditioner that noise is little is to overcome deficiency of the prior art.
Press the centrifugal blower volute of a kind of air conditioner of this purpose design; Comprise the air conditioner casing, be arranged on casing exhaust outlet place vaporizer, the water receiving disc between bottom half and vaporizer, be installed in centrifugal blower volute before the casing intake grill and the filter screen that is positioned at casing intake grill place; Wherein be provided with centrifugal wind wheel in the centrifugal blower volute; Its structure characteristic is that the inwall molded lines in spiral case air channel is along the involute direction; Part is conventional spiral of Archimedes, and the part is one section or multistage straightway.
Interval, said straightway present position is along the involute direction, and the angle between the snail tongue is between 0 °≤φ≤300 °.
The bearing of trend of said straightway is perpendicular to the spiral case exhaust outlet.
The two ends of said straightway are connected with arc snail wall.
Said snail tongue is a little more than the centrifugal wind wheel center.
The utility model has guaranteed that well spiral case opening width A is not interfered when the height dimension H of air conditioner casing or spiral case length dimension L receive seriously to limit, realize that the most of molded lines of spiral case reaches best opening width A φ.Thereby the realization air quantity increases and perhaps can reduce noise under the undiminished situation.
Description of drawings
Fig. 1 is the structural representation of existing technology centrifugal blower volute.
Fig. 2 is the structural representation of the utility model one embodiment's centrifugal blower volute.
Fig. 3 is that an embodiment is applied in the structural representation on the air conditioner indoor machine.
Among the figure: 1 is centrifugal blower volute, and 2 is centrifugal wind wheel, and 3 is the spiral case basic circle, and 4 is casing, and 5 is vaporizer, and 6 is water receiving disc, and 7 is filter screen, and 11 is the snail tongue, and 12 is straightway, and 21 is fan.
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is further described.
Referring to Fig. 2-Fig. 3; A kind of centrifugal blower volute of air conditioner; Comprise air conditioner casing 4, be arranged on casing 4 exhaust outlet places vaporizer 5, the water receiving disc 6 between casing 4 bottoms and vaporizer 5, be installed in centrifugal blower volute 1 before casing 4 intake grills and the filter screen 7 that is positioned at casing 4 intake grill places; Wherein be provided with centrifugal wind wheel 2 in the centrifugal blower volute 1; The inwall molded lines in spiral case air channel is along the involute direction, and part is conventional spiral of Archimedes, one section of local existence or multistage straightway 12.Interval, straightway 12 present positions is along the involute direction, and the angle between the snail tongue 11 is between 0 °≤φ≤300 °.The bearing of trend of straightway 12 is perpendicular to the spiral case exhaust outlet.The two ends of straightway 12 are connected with arc snail wall.Snail tongue 11 is a little more than centrifugal wind wheel 2 centers.φ 1 among the figure, φ 2 are respectively the angle at snail tongue 11 passing through fan, 21 centers and straightway 12 two ends.
The working principle of the utility model:
During the air conditioner operation, air is sucked air conditioner casing 4 through filter screen 7 by centrifugal blower, and then by after the centrifugal blower outlet discharge, the vaporizer 5 of flowing through carries out air heat exchange.Be sent to the space that needs through air conditioner casing 4 exhaust outlets at last.The height dimension H of air conditioning box body 4 and spiral case length dimension L are the sizes of regulation, can not change.Owing to adopt the utility model centrifugal blower volute 1; Air channel spiral inner wall line is along the involute direction; And the angle between the snail tongue 11 is interval in 0 °≤φ≤300 ° has one section or a multistage straightway 12; When size H or size L receive seriously to limit, guaranteed that well spiral case opening width A is not interfered, realize that the most of molded lines of spiral case reaches best opening width A φ.Snail shell coiling line end of a period cross section opening width A=Q/Bc2u, Q is the volume flowrate that flows through the spiral case section, and B is the spiral case width vertical with the spiral case molded lines, and c2u is blower fan 21 blade exit flow velocitys.Wherein fan noise is directly proportional with 6 powers of c2u.Under the situation of the size constancy that guarantees Q and B, A increases, and c2u must reduce, thereby reduces the fan operation noise.
Simultaneously, straightway 12 diminishes apart from a with fan 21, plays the effect of secondary snail tongue 11, and the air that leaves fan 21 blades entering spiral case is played supercharging and prevents that it is around fan 21 circumference circulation rotation.Therefore spiral case plays good guide functions.Thereby the raising air quantity reduces noise and input power, promotes air conditioner ability and quality.
Claims (5)
1. the centrifugal blower volute of an air conditioner; Comprise air conditioner casing (4), be arranged on casing (4) exhaust outlet place vaporizer (5), be positioned at water receiving disc (6) between casing (4) bottom and the vaporizer (5), be installed in preceding centrifugal blower volute (1) of casing (4) intake grill and the filter screen (7) that is positioned at casing (4) intake grill place; Wherein be provided with centrifugal wind wheel (2) in the centrifugal blower volute (1); The inwall molded lines that it is characterized in that the spiral case air channel is along the involute direction; Part is conventional spiral of Archimedes, and the part is one section or multistage straightway (12).
2. the centrifugal blower volute of air conditioner according to claim 1 is characterized in that said straightway (12) present position is interval for along the involute direction, and the angle between the snail tongue (11) is between 0 °≤φ≤300 °.
3. the centrifugal blower volute of air conditioner according to claim 1 and 2, the bearing of trend that it is characterized in that said straightway (12) is perpendicular to the spiral case exhaust outlet.
4. the centrifugal blower volute of air conditioner according to claim 3 is characterized in that the two ends of said straightway (12) are connected with arc snail wall.
5. the centrifugal blower volute of air conditioner according to claim 3 is characterized in that said snail tongue (11) is a little more than centrifugal wind wheel (2) center.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200937843U CN202520656U (en) | 2012-03-13 | 2012-03-13 | Centrifugal fan volute of air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200937843U CN202520656U (en) | 2012-03-13 | 2012-03-13 | Centrifugal fan volute of air conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202520656U true CN202520656U (en) | 2012-11-07 |
Family
ID=47103608
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200937843U Expired - Fee Related CN202520656U (en) | 2012-03-13 | 2012-03-13 | Centrifugal fan volute of air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202520656U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103511348A (en) * | 2012-06-22 | 2014-01-15 | 特灵国际有限公司 | Blower housing |
| CN104641122A (en) * | 2012-12-26 | 2015-05-20 | 新晃工业株式会社 | Guide plate part for plug fan in air conditioner |
| CN107115728A (en) * | 2017-06-21 | 2017-09-01 | 浙江大学昆山创新中心 | A kind of air cleaning unit |
| WO2018032761A1 (en) * | 2016-08-18 | 2018-02-22 | 中山大洋电机股份有限公司 | Centrifugal fan wheel, centrifugal fan and air conditioner using same |
| EP3051221B1 (en) * | 2014-08-29 | 2018-07-18 | Qingdao Haier Air Conditioner Gen Corp., Ltd. | Wall-mounted air conditioner indoor unit |
| CN108626148A (en) * | 2018-04-10 | 2018-10-09 | 广东美的暖通设备有限公司 | Wind turbine and roof machine |
| CN109185189A (en) * | 2018-09-21 | 2019-01-11 | 珠海格力电器股份有限公司 | Spiral case, blower and air-conditioning |
| CN112423529A (en) * | 2020-10-26 | 2021-02-26 | 苏州浪潮智能科技有限公司 | Single cabinet with fresh air exchange emergency ventilation system and data center |
-
2012
- 2012-03-13 CN CN2012200937843U patent/CN202520656U/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103511348A (en) * | 2012-06-22 | 2014-01-15 | 特灵国际有限公司 | Blower housing |
| US9279429B2 (en) | 2012-06-22 | 2016-03-08 | Trane International Inc. | Blower housing |
| CN103511348B (en) * | 2012-06-22 | 2016-04-20 | 特灵国际有限公司 | Flow blower casing |
| CN104641122A (en) * | 2012-12-26 | 2015-05-20 | 新晃工业株式会社 | Guide plate part for plug fan in air conditioner |
| EP3051221B1 (en) * | 2014-08-29 | 2018-07-18 | Qingdao Haier Air Conditioner Gen Corp., Ltd. | Wall-mounted air conditioner indoor unit |
| WO2018032761A1 (en) * | 2016-08-18 | 2018-02-22 | 中山大洋电机股份有限公司 | Centrifugal fan wheel, centrifugal fan and air conditioner using same |
| CN107115728A (en) * | 2017-06-21 | 2017-09-01 | 浙江大学昆山创新中心 | A kind of air cleaning unit |
| CN107115728B (en) * | 2017-06-21 | 2022-10-28 | 浙江大学昆山创新中心 | Air purifying device |
| CN108626148A (en) * | 2018-04-10 | 2018-10-09 | 广东美的暖通设备有限公司 | Wind turbine and roof machine |
| CN108626148B (en) * | 2018-04-10 | 2020-10-30 | 广东美的暖通设备有限公司 | Fan and roof machine |
| CN109185189A (en) * | 2018-09-21 | 2019-01-11 | 珠海格力电器股份有限公司 | Spiral case, blower and air-conditioning |
| CN112423529A (en) * | 2020-10-26 | 2021-02-26 | 苏州浪潮智能科技有限公司 | Single cabinet with fresh air exchange emergency ventilation system and data center |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: MIDEA GROUP CO., LTD. Free format text: FORMER NAME: MEIDI GROUP CO. LTD. |
|
| CP03 | Change of name, title or address |
Address after: 528311, Guangdong, Foshan Town, Shunde District, Beijiao, 6 beautiful avenue, beautiful headquarters building, B District, 26 - 28 floor Patentee after: MIDEA GROUP Co.,Ltd. Address before: 528311 Beijiao, Foshan, Shunde District, the town of Guangdong, the United States Avenue, No. 6 Patentee before: Midea Group |
|
| ASS | Succession or assignment of patent right |
Owner name: GUANGDONG MIDEA HVAC EQUIPMENT CO., LTD. Free format text: FORMER OWNER: MIDEA GROUP CO., LTD. Effective date: 20150602 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20150602 Address after: 528311 Beijiao, Guangdong, Shunde Town, Penglai Road, Industrial Avenue, Patentee after: GD MIDEA HEATING & VENTILATING EQUIPMENT Co.,Ltd. Address before: 528311, Guangdong, Foshan Town, Shunde District, Beijiao, 6 beautiful avenue, beautiful headquarters building, B District, 26 - 28 floor Patentee before: MIDEA GROUP Co.,Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121107 Termination date: 20210313 |