CN201934342U - Centrifugal fan - Google Patents
Centrifugal fan Download PDFInfo
- Publication number
- CN201934342U CN201934342U CN201120070764XU CN201120070764U CN201934342U CN 201934342 U CN201934342 U CN 201934342U CN 201120070764X U CN201120070764X U CN 201120070764XU CN 201120070764 U CN201120070764 U CN 201120070764U CN 201934342 U CN201934342 U CN 201934342U
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- CN
- China
- Prior art keywords
- wind wheel
- casing
- cover plate
- housing
- 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.)
- Expired - Fee Related
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Abstract
The utility model relates to a draught fan, particularly to a centrifugal fan applicable to small household electrical appliances. The centrifugal fan comprises a housing, wherein a rotating shaft is arranged in the housing; the rotating shaft is sleeved with a shaded-pole motor; a cover plate is arranged on the housing; a wind wheel is arranged on the shaded-pole motor and contacted with the cover plate; an air passage is arranged on one side of the housing; and a connecting wire penetrates through the housing and connected with the shaded-pole motor. The centrifugal fan has compact structure and stable rotation, and improves working efficiency.
Description
Technical field
The utility model patent relates to a kind of blower fan, relates in particular to a kind of centrifugal blower that is adapted at using on the small household appliances.
Background technique
Rotor at present traditional centrifugal blower and wind wheel are to be installed on the complete machine after successively being installed on the complete machine or rotor and wind wheel being assembled again.But ubiquity rotor and wind wheel synchronous operation poor effect, concentricity are stable inadequately, occur easily teetertottering thereby cause wind wheel to be in operation, thereby have influence on the balance movement and the working efficiency of complete machine, and what also become in operation is more complicated.
Chinese patent CN2512927 discloses a kind of centrifugal fan, comprises housing, motor, wind wheel, intake grill and exhaust outlet, wind wheel is installed on the output shaft of motor, and centrifugal blade is arranged on the wind wheel, and the housing of this blower fan half-and-half separately, butt joint mutually, wind wheel wherein can form with plastic injection-moulded.The working efficiency of this structure is relatively low.
Summary of the invention
The utility model mainly is to solve the deficiencies in the prior art, and a kind of motor with cup rotor of establishing in support is provided, and adopts the mode of wind wheel and rotating shaft extruding to fix, thereby increases work efficiency, and makes product appearance small and exquisite centrifugal blower attractive in appearance.
Above-mentioned technical problem of the present utility model is mainly solved by following technical proposals:
A kind of centrifugal blower, comprise casing, be provided with rotating shaft in the described casing, be with motor with cup rotor in the described rotating shaft, described casing is provided with cover plate, and described motor with cup rotor is provided with wind wheel, described wind wheel touches mutually with cover plate, one side of described casing is provided with the air channel, and cross-under goes out connecting line in the casing, and connecting line is connected with motor with cup rotor.
Such design can make the structure of product compact more, makes wind wheel quieter steady in rotation process, makes product that be arranged longer working life, reduces operation simultaneously, increases work efficiency.Described wind wheel directly pushes on the motor with cup rotor axle, and used motor with cup rotor is compared the rotor of original use, and stability is better, and noise is lower, has improved working efficiency.
As preferably, described casing is a volute, and described wind wheel is a lid shape, and the edge of described wind wheel stretches out.
As preferably, described cover plate and casing are fastened by self tapping screw.
Therefore, a kind of centrifugal blower of the present utility model, compact structure, stability of rotation is increased work efficiency.
Description of drawings
Fig. 1 is a sectional structure schematic representation of the present utility model;
Fig. 2 is a plan structure schematic representation of the present utility model.
Embodiment
Below by embodiment, and in conjunction with the accompanying drawings, the technical solution of the utility model is described in further detail.
Embodiment 1: as depicted in figs. 1 and 2, a kind of centrifugal blower, comprise casing 1, be provided with rotating shaft 2 in the described casing 1, be with motor with cup rotor 3 in the described rotating shaft 2, described casing 1 is provided with cover plate 4, described motor with cup rotor 3 is provided with wind wheel 5, and described wind wheel 5 touches mutually with cover plate 4, and a side of described casing 1 is provided with air channel 6, cross-under goes out connecting line 7 in the casing 1, connecting line 7 is connected with motor with cup rotor 3, and described casing is a volute, and described wind wheel 5 is a lid shape, the edge of described wind wheel 5 stretches out, and described cover plate and casing 1 are fastened by self tapping screw 9.
Claims (3)
1. centrifugal blower, it is characterized in that: comprise casing (1), be provided with rotating shaft (2) in the described casing (1), be with motor with cup rotor (3) in the described rotating shaft (2), described casing (1) is provided with cover plate (4), and described motor with cup rotor (3) is provided with wind wheel (5), described wind wheel (5) touches mutually with cover plate (4), one side of described casing (1) is provided with air channel (6), and the interior cross-under of casing (1) goes out connecting line (7), and connecting line (7) is connected with motor with cup rotor (3).
2. a kind of centrifugal blower according to claim 1 is characterized in that: described casing is a volute, and described wind wheel (5) is a lid shape, and the edge of described wind wheel (5) stretches out.
3. a kind of centrifugal blower according to claim 1 and 2 is characterized in that: described cover plate and casing (1) are fastened by self tapping screw (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120070764XU CN201934342U (en) | 2011-03-17 | 2011-03-17 | Centrifugal fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120070764XU CN201934342U (en) | 2011-03-17 | 2011-03-17 | Centrifugal fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201934342U true CN201934342U (en) | 2011-08-17 |
Family
ID=44445861
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120070764XU Expired - Fee Related CN201934342U (en) | 2011-03-17 | 2011-03-17 | Centrifugal fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201934342U (en) |
-
2011
- 2011-03-17 CN CN201120070764XU patent/CN201934342U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110817 Termination date: 20150317 |
|
| EXPY | Termination of patent right or utility model |