CN201368069Y - Enclosure of centrifugal fan - Google Patents
Enclosure of centrifugal fan Download PDFInfo
- Publication number
- CN201368069Y CN201368069Y CNU2009201152754U CN200920115275U CN201368069Y CN 201368069 Y CN201368069 Y CN 201368069Y CN U2009201152754 U CNU2009201152754 U CN U2009201152754U CN 200920115275 U CN200920115275 U CN 200920115275U CN 201368069 Y CN201368069 Y CN 201368069Y
- Authority
- CN
- China
- Prior art keywords
- side plate
- plate
- centrifugal fan
- enclosure
- air inlet
- 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
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Abstract
The utility model discloses an enclosure of a centrifugal fan. The enclosure comprises a snail plate and two side plates, wherein the two side plates are the flat plates; one side plate is provided with an air inlet, and a current collector is arranged on the air inlet; a modified shell side plate is also combined into one side plate; the modified shell side plate takes a ring shape; the inner side of the ring-shaped modified shell side plate is arranged at one near the air inlet outside an impeller, and the shape of the modified shell side plate is matched with the impeller; and the outer side of the ring-shaped modified shell side plate is fixed at the connecting position of the snail plate and the side plate with the air inlet. By the modified design for the side plates of the enclosure of the centrifugal fan, the vortex can be prevented from being generated at the current collector at the air inlet of the fan, so as to improve the efficiency of the centrifugal fan. The enclosure has simple structure and is suitable for various centrifugal fans such as a single-suction type centrifugal fan, a double-suction type centrifugal fan and the like.
Description
Technical field
The utility model relates to a kind of casing of centrifugal blower, belongs to blower fan and ventilating engineering technical field.
Technical background
Centrifugal blower in the present domestic industry has varied, but its structure generally comprises impeller and casing, casing comprises snail plate and two side plates, described two side plates are that dull and stereotyped relative position is parallel, one of them side plate is provided with intake grill, generally be provided with slip ring on intake grill, above-mentioned centrifugal blower can produce bigger eddy current in the housing at slip ring place, influences the working efficiency of centrifugal blower.
The model utility content
At above-mentioned situation, the problem that the utility model quasi-solution is determined provides a kind of centrifugal blower casing that is not easy to produce eddy current in the housing at slip ring place, to improve the working efficiency of blower fan.
For achieving the above object, the utility model is by the following technical solutions: a kind of casing of centrifugal blower, it comprises snail plate and two side plates, described two side plates are dull and stereotyped, one of them side plate is provided with intake grill, on described intake grill, be provided with slip ring, it is also organized into the modification housing side wall, described modification housing side wall is a ring-type, the inboard of the type housing side wall of described ring-type is at the end near the close intake grill in the impeller outside, and shape and impeller match, and the outside of the type housing side wall of described ring-type is fixed on snail plate and the joint that is provided with the intake grill side plate.
By side plate Variant Design to the centrifugal blower casing, the eddy current of avoiding air inlet slip ring place to produce, thereby the efficient of raising centrifugal blower.The utility model is simple in structure, is applicable to various centrifugal blowers such as single suction or double-sucking type.
Description of drawings
Fig. 1 is the structural representation of the casing of centrifugal blower of the present utility model;
Fig. 2 is the structural representation of modification housing side wall.
Among the figure: 1-snail plate, 2-side plate, 3-intake grill, 4-slip ring, 5-modification housing side wall, 6-impeller.
Embodiment
As shown in the figure, the casing of centrifugal blower of the present utility model, it comprises snail plate 1 and two side plates 2, and described two side plates 2 are dull and stereotyped, and one of them side plate 2 is provided with intake grill 3, is provided with slip ring 4 on described intake grill 3.Said structure and prior art are similar, therefore are not described in detail.
Centrifugal blower of the present utility model is that it is also organized into modification housing side wall 5 with the characteristics of efficient casing maximum, described modification housing side wall 5 is ring-type (referring to Fig. 2), the inboard of the type housing side wall 5 of described ring-type is at the end near the close intake grill 3 in impeller 6 outsides, and shape and impeller 6 match, and the outside of the type housing side wall 5 of described ring-type is fixed on snail plate 1 and the joint that is provided with intake grill 3 side plates 2.
Utilize the modification housing side wall to occupy the space that produces in the spiral case that original plate side plate forms than maelstrom, the spiral case interior shape of centrifugal blower is changed.
In sum, the eddy current that centrifugal blower of the present utility model has avoided air inlet slip ring place to produce with efficient casing, thereby the efficient of raising centrifugal blower.The utility model is simple in structure, theory is unique, novel in design, be applicable to various centrifugal blowers such as single suction or double-sucking type.
Claims (1)
1, a kind of casing of centrifugal blower, it comprises snail plate (1) and two side plates (2), one of them side plate (2) is provided with intake grill (3), on described intake grill (3), be provided with slip ring (4), it is characterized in that it also organizes into modification housing side wall (5), described modification housing side wall (5) is a ring-type, the inboard of the modification housing side wall (5) of described ring-type is at the end near the close intake grill (3) in impeller (6) outside, and shape and impeller (6) match, and the outside of the modification housing side wall (5) of described ring-type is fixed on snail plate (1) and the joint that is provided with the side plate (2) of intake grill (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009201152754U CN201368069Y (en) | 2009-03-12 | 2009-03-12 | Enclosure of centrifugal fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009201152754U CN201368069Y (en) | 2009-03-12 | 2009-03-12 | Enclosure of centrifugal fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201368069Y true CN201368069Y (en) | 2009-12-23 |
Family
ID=41486962
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2009201152754U Expired - Fee Related CN201368069Y (en) | 2009-03-12 | 2009-03-12 | Enclosure of centrifugal fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201368069Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110185634A (en) * | 2019-06-25 | 2019-08-30 | 宁波奥克斯电气股份有限公司 | A kind of centrifugal blower and air conditioner |
-
2009
- 2009-03-12 CN CNU2009201152754U patent/CN201368069Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110185634A (en) * | 2019-06-25 | 2019-08-30 | 宁波奥克斯电气股份有限公司 | A kind of centrifugal blower and air conditioner |
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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: ZHEJIANG SHANGFENG HIGH TECHNOLOGY ZHUANFENG INDUS Free format text: FORMER NAME: SHANGYU SPECIAL FANS CO., LTD. |
|
| CP03 | Change of name, title or address |
Address after: 312300 Shangyu City, Shaoxing province people's Road West, No. Patentee after: ZHEJIANG SHANGFENG GAOKE SPECIAL FAN INDUSTRY CO., LTD. Address before: 312300 No. 438 Renmin West Road, Zhejiang, Shangyu Patentee before: Shangyu Special Fans Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091223 Termination date: 20160312 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |