CN203948330U - A kind of centrifugal blower - Google Patents
A kind of centrifugal blower Download PDFInfo
- Publication number
- CN203948330U CN203948330U CN201420310831.4U CN201420310831U CN203948330U CN 203948330 U CN203948330 U CN 203948330U CN 201420310831 U CN201420310831 U CN 201420310831U CN 203948330 U CN203948330 U CN 203948330U
- Authority
- CN
- China
- Prior art keywords
- shaped housing
- centrifugal blower
- draught fan
- air
- fan impeller
- 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.)
- Withdrawn - After Issue
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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
A kind of 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), 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, described intake grill (4) is fixedly installed on 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.This centrifugal blower had both ensured that its volume met the limited space of air-conditioning unit, and its fan efficiency is high, and wind is made an uproar little, easy accessibility.
Description
Technical field
The utility model 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.
Model utility content
The technical problems to be solved in the utility model 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 utility model 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 utility model;
Fig. 2 is decomposition chart of the present utility model;
Fig. 3 is that the utility model is installed on the design sketch in casing;
Fig. 4 is the structural representation of U-shaped cover.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in detail.
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 utility model, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the utility model the scope of the claims.It should be pointed out that for the person of ordinary skill of the art, without departing from the concept of the premise utility, can also make some distortion and improvement, these all belong to protection domain of the present utility model.Therefore, the protection domain of the utility model patent 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 |
|---|---|---|---|
| CN201420310831.4U CN203948330U (en) | 2014-06-11 | 2014-06-11 | A kind of centrifugal blower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420310831.4U CN203948330U (en) | 2014-06-11 | 2014-06-11 | A kind of centrifugal blower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203948330U true CN203948330U (en) | 2014-11-19 |
Family
ID=51890367
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420310831.4U Withdrawn - After Issue CN203948330U (en) | 2014-06-11 | 2014-06-11 | A kind of centrifugal blower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203948330U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104033413A (en) * | 2014-06-11 | 2014-09-10 | 南方风机股份有限公司 | Centrifugal fan |
-
2014
- 2014-06-11 CN CN201420310831.4U patent/CN203948330U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104033413A (en) * | 2014-06-11 | 2014-09-10 | 南方风机股份有限公司 | Centrifugal fan |
| CN104033413B (en) * | 2014-06-11 | 2016-04-06 | 南方风机股份有限公司 | A kind of centrifugal blower |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20141119 Effective date of abandoning: 20160406 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |