CN104033413A - Centrifugal fan - Google Patents
Centrifugal fan Download PDFInfo
- Publication number
- CN104033413A CN104033413A CN201410258990.9A CN201410258990A CN104033413A CN 104033413 A CN104033413 A CN 104033413A CN 201410258990 A CN201410258990 A CN 201410258990A CN 104033413 A CN104033413 A CN 104033413A
- Authority
- CN
- China
- Prior art keywords
- shaped housing
- fan
- centrifugal blower
- air
- motor
- 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
Links
Abstract
A centrifugal fan comprises a motor (1), a fan wheel (2), a fan mounting support (3), and an air inlet (4). The motor (1) is mounted on the fan mounting support (3). The fan wheel (2) is mounted on an output shaft of the motor (1). A U-shaped housing (5) is further mounted on the fan mounting support (3). The fan wheel (2) is disposed within a chamber of the U-shaped housing (5). The air inlet (4) is fixedly mounted on the U-shaped housing (5). The U-shaped housing (5) is composed of an upper board (5.1), a lower board (5.2) and a U-shaped cover (5.3) which are all mounted on the fan mounting support (3). The size of the centrifugal fan adapts to the limited space of an air conditioning unit, and the centrifugal fan is high in fan efficiency, mute, and convenient to demount and mount.
Description
Technical field
The present invention relates to a kind of centrifugal blower that is applied to air-conditioning unit.
Background technique
In air-conditioning unit ventilation system in the past, adopt has volute casing centrifugal blower fan more, one as disclosed in Chinese patent CN203548339U has volute casing centrifugal blower fan to include spiral case, draught fan impeller, motor, and the inner flow passage of this spiral case comprises diffuser, the section of extending out, snail tongue and helicoid.In the closed box at air-conditioning unit, limited space, and have volute casing centrifugal blower fan volume large, and be not too applicable to being installed in the casing of air-conditioning unit, therefore, there is volute casing centrifugal blower fan to be replaced without spiral case blower fan gradually.
The disclosed one of Chinese patent CN203130545U comprises slip ring, impeller, motor and fan supporter without spiral case blower fan, impeller is arranged in fan supporter, impeller is connected with the pto＝power take-off of motor by wheel hub, slip ring is independently fixed on the side plate of fan supporter, motor is fixed on the opposite side corresponding with side plate, air enters impeller from slip ring, after impeller, flows out from support surrounding.This blower fan is not owing to there is no spiral case, and therefore volume is little, but has ineffective problem.
Summary of the invention
The technical problem to be solved in the present invention is, a kind of centrifugal blower is provided, and both ensured that its volume meets the limited space of air-conditioning unit, and its fan efficiency is high, and wind is made an uproar little, easy accessibility.
The present invention for provided technological scheme is provided is: a kind of centrifugal blower comprises motor, draught fan impeller, assembling support and intake grill, motor is installed on assembling support, draught fan impeller is arranged on the output shaft of motor, it is characterized in that, one U-shaped housing is also installed on described assembling support, described draught fan impeller is placed in U-shaped shell cavity, and described intake grill is fixedly installed on U-shaped housing.
Described U-shaped housing is assembled by the top plate, lower plywood and the U-shaped cover that are installed in assembling frame.
Draught fan impeller axle center is respectively L1 to the lateral separation of the sidewall of U-shaped housing air-flow pressurization starting point, is L2 to the fore-and-aft distance of U-shaped housing cambered surface, is L3 to the lateral separation of another sidewall relative with the sidewall of U-shaped housing air-flow pressurization starting point, L1≤L2≤L3.
The sidewall of described U-shaped housing air-flow pressurization starting point is also provided with a guide plate.
This centrifugal blower is applied in air-conditioning unit, and the U-shaped housing of this centrifugal blower is less than full spiral type spiral case centrifugal blower volume, can meet the limited space of air-conditioning unit; Owing to adopting said structure, U-shaped housing plays air-flow leading role, has reduced the turbulent flow of air-flow in casing wedge angle, has avoided the interference of other parts to air-flow in casing, thereby has improved fan efficiency; Because U-shaped housing adopts Split type structure, easy accessibility.
Brief description of the drawings
Fig. 1 is structural representation of the present invention;
Fig. 2 is decomposition chart of the present invention;
Fig. 3 is that the present invention is installed on the design sketch in casing;
Fig. 4 is the structural representation of U-shaped cover.
Embodiment
Describe the present invention below in conjunction with accompanying drawing.
As Fig. 1, shown in Fig. 2, a kind of centrifugal blower comprises motor 1, draught fan impeller 2, assembling support 3 and intake grill 4, motor 1 is installed on assembling support 3, draught fan impeller 2 is arranged on the output shaft of motor 1, assembling frame 3 is also installed with U-shaped housing 5, described U-shaped housing 5 is by the top plate 5.1 being installed in assembling frame 3, lower plywood 5.2 and a U-shaped cover 5.3 assemble, described U-shaped cover 5.3 upper, lower surface is provided with respectively the upper installing frame groove 5.5 and the lower installing frame groove 5.6 that match with top plate 5.1 and lower plywood 5.2, described top plate 5.1 middle parts are provided with circular open 5.7, described intake grill 4 is fixedly installed on the circular open 5.7 of top plate 5.1.Described U-shaped housing 5 draught fan impellers 2 are placed in U-shaped housing 5 cavitys.
For further improving the pressure of U-shaped blower fan, the sidewall of U-shaped housing 5 air-flow pressurization starting points is also provided with a guide plate 5.4.
As shown in Figure 4, draught fan impeller 3 axle center are respectively L1 to the lateral separation of the sidewall of U-shaped housing 5 air-flow pressurization starting points, being L2 to the fore-and-aft distance of U-shaped housing 5 cambered surfaces, is L3 to the lateral separation of another sidewall relative with the sidewall of U-shaped housing 5 air-flow pressurization starting points, L1≤L2≤L3; For adapting to limited space in air-conditioning unit, the aperture of U-shaped cover 5.3 both sides is α, β respectively, wherein 45 °≤α≤90 °, 45 °≤β≤90 °.
The above embodiment has only expressed optimum mode of execution of the present invention, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.
Claims (4)
1. a centrifugal blower, this centrifugal blower comprises motor (1), draught fan impeller (2), assembling support (3) and intake grill (4), motor (1) is installed on assembling support (3), draught fan impeller (2) is arranged on the output shaft of motor (1), it is characterized in that, one U-shaped housing (5) is also installed on described assembling support (3), described draught fan impeller (2) is placed in U-shaped housing (5) cavity, and described intake grill (4) is fixedly installed on U-shaped housing (5).
2. a kind of centrifugal blower according to claim 1, it is characterized in that, described U-shaped housing (5) is assembled by the top plate (5.1), lower plywood (5.2) and the U-shaped cover (5.3) that are installed in assembling frame (3).
3. according to a kind of centrifugal blower described in claim 1 to 2 any one, it is characterized in that, draught fan impeller (3) axle center is respectively L1 to the lateral separation of the sidewall of U-shaped housing (5) air-flow pressurization starting point, fore-and-aft distance to U-shaped housing (5) cambered surface is L2, lateral separation to another sidewall relative with the sidewall of U-shaped housing (5) air-flow pressurization starting point is L3, L1≤L2≤L3.
4. according to a kind of centrifugal blower described in claim 1 to 2 any one, it is characterized in that, the sidewall of described U-shaped housing (5) air-flow pressurization starting point is also provided with a guide plate (5.4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410258990.9A CN104033413B (en) | 2014-06-11 | 2014-06-11 | A kind of centrifugal blower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410258990.9A CN104033413B (en) | 2014-06-11 | 2014-06-11 | A kind of centrifugal blower |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104033413A true CN104033413A (en) | 2014-09-10 |
| CN104033413B CN104033413B (en) | 2016-04-06 |
Family
ID=51464341
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410258990.9A Active CN104033413B (en) | 2014-06-11 | 2014-06-11 | A kind of centrifugal blower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104033413B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007113526A (en) * | 2005-10-21 | 2007-05-10 | Daikin Ind Ltd | Blowing device |
| CN101201056A (en) * | 2006-12-13 | 2008-06-18 | 张一鸣 | Centrifugal fan with built-in purifying means |
| CN202326461U (en) * | 2011-11-18 | 2012-07-11 | 株洲联诚集团有限责任公司 | Cooling fan of pulling motor for motor train unit |
| CN203130551U (en) * | 2013-02-18 | 2013-08-14 | 中国海洋大学 | Centrifugal fan |
| CN203130545U (en) * | 2013-01-07 | 2013-08-14 | 洛阳北玻台信风机技术有限责任公司 | Novel non-volute draught fan |
| CN203560118U (en) * | 2013-10-18 | 2014-04-23 | 上虞市当代风机风冷设备有限公司 | Centrifugal fan |
| CN203614455U (en) * | 2011-12-21 | 2014-05-28 | Seb公司 | Centrifugation ventilation wheel, corresponding ventilator and cooking device comprising ventilator |
| CN203948330U (en) * | 2014-06-11 | 2014-11-19 | 南方风机股份有限公司 | A kind of centrifugal blower |
-
2014
- 2014-06-11 CN CN201410258990.9A patent/CN104033413B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007113526A (en) * | 2005-10-21 | 2007-05-10 | Daikin Ind Ltd | Blowing device |
| CN101201056A (en) * | 2006-12-13 | 2008-06-18 | 张一鸣 | Centrifugal fan with built-in purifying means |
| CN202326461U (en) * | 2011-11-18 | 2012-07-11 | 株洲联诚集团有限责任公司 | Cooling fan of pulling motor for motor train unit |
| CN203614455U (en) * | 2011-12-21 | 2014-05-28 | Seb公司 | Centrifugation ventilation wheel, corresponding ventilator and cooking device comprising ventilator |
| CN203130545U (en) * | 2013-01-07 | 2013-08-14 | 洛阳北玻台信风机技术有限责任公司 | Novel non-volute draught fan |
| CN203130551U (en) * | 2013-02-18 | 2013-08-14 | 中国海洋大学 | Centrifugal fan |
| CN203560118U (en) * | 2013-10-18 | 2014-04-23 | 上虞市当代风机风冷设备有限公司 | Centrifugal fan |
| CN203948330U (en) * | 2014-06-11 | 2014-11-19 | 南方风机股份有限公司 | A kind of centrifugal blower |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104033413B (en) | 2016-04-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202883470U (en) | Fan structure of noise-reduction type extractor hood | |
| CN201407207Y (en) | Multi-blade centrifugal wind wheel | |
| CN205002265U (en) | Air purifier | |
| CN102251985A (en) | Box-type centrifugal fan | |
| CN203948330U (en) | A kind of centrifugal blower | |
| CN102562627B (en) | Fan assembly | |
| CN104033413B (en) | A kind of centrifugal blower | |
| CN202194839U (en) | Small double-air-outlet centrifugal fan | |
| CN102865239A (en) | Air blower capable of omni-directionally blowing out air for large space | |
| CN203201876U (en) | Box-type centrifugal fan | |
| CN204073671U (en) | The vehicular air purifier of a kind of side air inlet, end face air-out | |
| CN102109192A (en) | Range hood with noise reduction structure | |
| CN205937221U (en) | Impeller subassembly, axial fan and cabinet air conditioner | |
| CN104806539A (en) | Novel fan | |
| CN202993482U (en) | Air supply structure for air conditioner air pipe machine | |
| CN202381392U (en) | Fixed impeller with improved air quantity and motor thereof | |
| CN202091224U (en) | Hair drier capable of realizing omnibearing peripheral air outflow | |
| CN202360465U (en) | Vehicle air conditioner air blower assembly | |
| CN202194860U (en) | Box type centrifugal fan | |
| CN210033956U (en) | Fan volute and fan | |
| CN205977743U (en) | Box centrifugal fan of hypsokinesis | |
| CN216518716U (en) | Axial-flow type centrifugal fan | |
| CN202991654U (en) | All-terrain vehicle fan assembly | |
| CN214464973U (en) | A high-pressure ventilation blower for saw-dust is carried | |
| CN103334942A (en) | Integrated ceiling fan |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |