CN201443538U - Efficient range hood impeller - Google Patents
Efficient range hood impeller Download PDFInfo
- Publication number
- CN201443538U CN201443538U CN2009200279692U CN200920027969U CN201443538U CN 201443538 U CN201443538 U CN 201443538U CN 2009200279692 U CN2009200279692 U CN 2009200279692U CN 200920027969 U CN200920027969 U CN 200920027969U CN 201443538 U CN201443538 U CN 201443538U
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- impeller
- limit portion
- long strip
- class
- blade
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Abstract
The utility model discloses an efficient range hood impeller, which includes a main end part, an annular end part and a plurality of strip-shaped blades; one end of each of the strip-shaped blades is fixed on the annular end part, and the other ends are fixed on the main end part; the efficient range hood impeller is characterized in that the strip-shaped blades includes at least two types, wherein one type of the strip-shaped blades face to the oil fume suction side of the impeller and have first edge parts as linear edge parts, and one type of the strip-shaped blades face to the oil fume blow-off side and have second edge parts as linear edge parts too; and other types of the the strip-shaped blades at least face to the outer side of the impeller and have second edge parts as toothed curve edge parts. On the premise that the draft capacity is not weakened, the utility model can fully discharge the gaseous oil fume and easily throw liquid oil stain away from the blades because the second edge parts of the second type of blades adopts the toothed structure and the adhesive attraction is reduced, and the oil fume discharging effect can be greatly improved.
Description
Technical field
The utility model relates to fume exhaust fan, and is special relevant with the impeller part of centrifugal blower in the fume exhaust fan.
Background technique
Fume exhaust fan of the prior art can be divided into two big class, i.e. axial flow kitchen ventilator and centrifugal lampblack machines by the blower fan type.Nowadays the centrifugal lampblack machine has become the kitchen ventilator main product, centrifugal blower generally includes drive motor, spiral case and is positioned at the impeller of spiral case in such centrifugal lampblack machine, impeller comprises main end, annular end and some long strip blades, each long strip blade one end is fixed on the annular end, the other end is fixed on the main end, main end is as the end wheel disc, is provided with axle sleeve at the central position of end wheel disc, and the motor shaft of drive motor connects with axle sleeve; The rotation of drive motor running drives impeller, oil smoke is sucked in the impeller, and impeller produces under the action of centrifugal force in rotation, enters oil smoke and is radially thrown away impeller, and the radial variation restriction by spiral case realizes that oil smoke separates.The blade wheel structure of above-mentioned centrifugal blower, though the suction that also can realize oil smoke with separate, but in daily use, find, easily residually on the blade adhere to a large amount of greasy dirts, clean very inconvenience, get rid of the oil smoke effect and also await further raising, trace it to its cause and mainly be each long strip blade, first limit portion towards impeller oil smoke suction side is regular straight line shape limit portion with the second limit portion that blows out side towards the impeller oil smoke.
The model utility content
The utility model is to solve the existing above-mentioned technological deficiency of centrifugal blower fan blade wheel in the centrifugal fume exhaust fan of prior art, and a kind of efficient fume exhaust fan impeller is provided.
Its technical solution is:
A kind of efficient fume exhaust fan impeller, impeller comprise main end, annular end and some long strip blades, and each long strip blade one end is fixed on the annular end, and the other end is fixed on the main end; Above-mentioned long strip blade is made up of at least two class long strip blades, first kind long strip blade wherein, the class blade first limit portion towards impeller oil smoke suction side is a straight line shape limit portion, and a class blade second limit portion that blows out side towards the impeller oil smoke also is straight line shape limit portion; Other kinds long strip lamellar body is a tooth curve shape limit portion towards this his class blade second limit portion that the impeller oil smoke blows out side at least.
Above-mentioned long strip blade is made up of two class long strip blades, the second class long strip blade wherein, and two class blades, the first limit portion towards the impeller inboard is a straight line shape limit portion, two class blades, the second limit portion towards the impeller outside is a tooth curve shape limit portion; The first kind long strip blade and the second class long strip blade alternate distribute alternately.
The above-mentioned two class blades second limit portion is a sawtooth curve shape limit portion.
Above-mentioned main end is provided with wheel disc, and the central position of wheel disc is provided with axle sleeve.
Recessed one section to the central position of impeller on above-mentioned wheel disc forms the drive motor placing chamber in the wheel disc outside.
Above-mentioned impeller disposes one and is used for the quick detachable nut that is fixedly connected with drive motor.
The beneficial effects of the utility model are:
The utility model impeller, first kind long strip blade and second class (his class) long strip blade are organically combined, when not reducing draft capacity, the gaseous state oil smoke fully can be discharged on the one hand, the liquid greasy dirt that adheres on the other hand on the blade moves towards each blade second limit portion under the centrifugal action that wheel rotation produced, because second class (his class) blade, the second limit portion takes the tooth curve shape structure such as zigzag fashion etc., adhesion is reduced, liquid greasy dirt is just thrown away from blade at an easy rate, thereby makes the cooking-fume discharging effect improve greatly.The greasy dirt adhesive capacity also significantly reduces than prior art, sprays a little oil smoke and also can easily it be removed only, has significantly reduced the number of times of disassembly, cleaning, has reduced the cleaning cost simultaneously, thereby has prolonged the working life of kitchen ventilator.
In addition, second class (his class) blade, the first limit portion takes the straight line shape structure, the tooth curve shape structure of blade second limit portion employing such as zigzag fashion etc., both organically combine, can be when not reducing draft capacity, the windage when making lampblack suction exhausting reduces, and noise reduces.
Description of drawings
Below in conjunction with the drawings and the specific embodiments the utility model is described:
Fig. 1 is the structural principle schematic representation of a kind of mode of execution of the utility model.
Fig. 2 illustrates the first kind long strip blade in Fig. 1 mode and the structural principle schematic representation of a kind of mode of execution of the second class long strip blade.
Fig. 3 is the partial structurtes principle schematic in Fig. 1 mode.
Fig. 4 is the cross-section structure principle schematic in Fig. 1 mode.
Fig. 5 is the side-looking structural principle schematic representation in Fig. 1 mode.
Fig. 6 is the package assembly principle schematic of impeller and drive motor.
Embodiment
Referring to Fig. 1, Fig. 2, Fig. 3, Fig. 4 and Fig. 5, a kind of efficient fume exhaust fan impeller comprises main end 1, annular end 2, some first kind long strip blades 3 and some second class long strip blades 4.First kind long strip blade 3 one ends are fixed on the annular end 2, the other end is fixed on the main end 1, the second class long strip blade, 4 one ends are fixed on the annular end 2, and the other end is fixed on the main end 1, and first kind long strip blade 3 and the second class long strip blade, 4 interleaved distribute.Above-mentioned main end 1 is provided with wheel disc 5, and the central position of wheel disc is provided with axle sleeve 6, and recessed one section to the central position of impeller on wheel disc 5 forms drive motor placing chamber 7 in wheel disc 5 outsides.First kind long strip blade 3, a class blade first limit portion 301 towards impeller oil smoke suction side is a straight line shape limit portion, a class blade second limit portion 302 that blows out side towards the impeller oil smoke also is straight line shape limit portion; The second class long strip blade 4, two class blades, the first limit portion 401 towards impeller oil smoke suction side is a straight line shape limit portion, two class blades, the second limit portion 402 that blows out side towards the impeller oil smoke is tooth curve shape limit portion, two class blades, the second limit portion 402 is preferably sawtooth curve shape limit portion, and promptly respectively forming monodentate is lance tooth.
In conjunction with Fig. 6, above-mentioned impeller, spiral case and drive motor 8 etc. constitute centrifugal fan, impeller is positioned at spiral case, the motor shaft of drive motor 8 connects with axle sleeve, the anterior body or the whole machine body of drive motor 8 are inserted in the drive motor placing chamber 7, take this technical approach can impel mounting structure compact more, are beneficial to save to take up room, the rotation of drive motor running impeller produces centrifugal wind-force.On the motor shaft of above-mentioned drive motor 8 fixing pin is arranged, the groove that is provided with above-mentioned axle sleeve is complementary, and is used for fixing the angle of impeller and motor shaft.The end of motor shaft is provided with screw thread, after motor shaft penetrates axle sleeve, is fixedly connected with a screwed quick detachable nut 9 in inboard, and by using this quick detachable nut, can be when needs clean easily under the impeller demolition.
In the aforesaid way, two class blades, the second limit portion also can be the tooth curve shape limit portion that adopts arc tooth or the like other suitable structure.
Claims (7)
1. efficient fume exhaust fan impeller, impeller comprises main end, annular end and some long strip blades, and each long strip blade one end is fixed on the annular end, and the other end is fixed on the main end; It is characterized in that: described long strip blade is made up of at least two class long strip blades, first kind long strip blade wherein, the class blade first limit portion towards impeller oil smoke suction side is a straight line shape limit portion, and a class blade second limit portion that blows out side towards the impeller oil smoke also is straight line shape limit portion; Other kinds long strip lamellar body, this his the class blade second limit portion towards the impeller outside is a tooth curve shape limit portion at least.
2. efficient fume exhaust fan impeller according to claim 1, it is characterized in that: described long strip blade is made up of two class long strip blades, the second class long strip blade wherein, two class blades, the first limit portion towards impeller oil smoke suction side is a straight line shape limit portion, and two class blades, the second limit portion that blows out side towards the impeller oil smoke is a tooth curve shape limit portion; The first kind long strip blade and the second class long strip blade alternate distribute alternately.
3. efficient fume exhaust fan impeller according to claim 2 is characterized in that: the described two class blades second limit portion is a sawtooth curve shape limit portion.
4. efficient fume exhaust fan impeller according to claim 1 and 2 is characterized in that: described main end is provided with wheel disc, and the central position of wheel disc is provided with axle sleeve.
5. efficient fume exhaust fan impeller according to claim 4 is characterized in that: recessed one section to the central position of impeller on described wheel disc forms the drive motor placing chamber in the wheel disc outside.
6. efficient fume exhaust fan impeller according to claim 1 is characterized in that: described impeller disposes one and is used for the quick detachable nut that is fixedly connected with drive motor.
7. efficient fume exhaust fan impeller according to claim 5 is characterized in that: described impeller disposes one and is used for the quick detachable nut that is fixedly connected with drive motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200279692U CN201443538U (en) | 2009-06-17 | 2009-06-17 | Efficient range hood impeller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200279692U CN201443538U (en) | 2009-06-17 | 2009-06-17 | Efficient range hood impeller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201443538U true CN201443538U (en) | 2010-04-28 |
Family
ID=42548215
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200279692U Expired - Fee Related CN201443538U (en) | 2009-06-17 | 2009-06-17 | Efficient range hood impeller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201443538U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106837859A (en) * | 2017-02-13 | 2017-06-13 | 美的集团股份有限公司 | Draught fan impeller and centrifugal blower |
-
2009
- 2009-06-17 CN CN2009200279692U patent/CN201443538U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106837859A (en) * | 2017-02-13 | 2017-06-13 | 美的集团股份有限公司 | Draught fan impeller and centrifugal blower |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100428 Termination date: 20120617 |