CN101776089A - Ventilation device and impeller thereof - Google Patents

Ventilation device and impeller thereof Download PDF

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Publication number
CN101776089A
CN101776089A CN200910002031A CN200910002031A CN101776089A CN 101776089 A CN101776089 A CN 101776089A CN 200910002031 A CN200910002031 A CN 200910002031A CN 200910002031 A CN200910002031 A CN 200910002031A CN 101776089 A CN101776089 A CN 101776089A
Authority
CN
China
Prior art keywords
impeller
flabellum
wheel hub
base plate
height
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.)
Pending
Application number
CN200910002031A
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Chinese (zh)
Inventor
林志华
陈彦霖
刘德中
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Delta Electronics Inc
Delta Optoelectronics Inc
Original Assignee
Delta Optoelectronics Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Delta Optoelectronics Inc filed Critical Delta Optoelectronics Inc
Priority to CN200910002031A priority Critical patent/CN101776089A/en
Publication of CN101776089A publication Critical patent/CN101776089A/en
Pending legal-status Critical Current

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Abstract

The invention discloses a ventilation device and an impeller thereof. The impeller comprises a hub, a base plate connected with the hub and a first fan blade set which surrounds the hub and is arranged on the base plate, wherein the ratio of the height to the diameter of the impeller is 0.8-0.9.

Description

Ventilation plant and impeller thereof
Technical field
The present invention relates to a kind of ventilation plant, especially relate to the ventilation fan or the ventilating fan of a kind of low noise and superperformance.
Background technique
The impeller design of general traditional ventilation fan as shown in Figure 1, it has base plate 10, is arranged at the wheel hub 11 on the base plate 10, the annulus 13 that is arranged at the blade 12 of base plate 10 peripheries and connects each blade 12 top.Yet the lobe numbers of the impeller of general household ventilation fan is few, thereby influences the characteristic of air inlet.In addition, its aerodynamic noise is remarkable, and this noise source comprises electric noise of motor, vibrating noise and pneumatic noise etc., and wherein the pneumatic noise that causes with blade has the greatest impact.
Summary of the invention
In view of above-mentioned problem, the object of the present invention is to provide the ventilation plant and the impeller thereof of a kind of tool low noise and superperformance.
Edge is that for reaching above-mentioned purpose, a kind of impeller of the present invention comprises a wheel hub; One base plate is linked to this wheel hub; And one first flabellum group, be located on this wheel hub around and be arranged on this base plate, wherein the ratio of this impeller height and this impeller diameter is 0.8~0.9.
According to a conception of the present invention, this impeller comprises a wheel hub; One base plate is linked to this wheel hub; And one first flabellum group, be located on this wheel hub around and be arranged on this base plate, wherein the lobe numbers of this first flabellum group is 80~90.
According to another conception of the present invention, this impeller comprises a wheel hub; One base plate is linked to this wheel hub; And one first flabellum group, be located on this wheel hub around and be arranged on this base plate, wherein the ratio of this hub height and this impeller height is 0.3~0.55.
According to another conception more of the present invention, this impeller comprises a wheel hub; One base plate is linked to this wheel hub; And one first flabellum group, be located on this wheel hub around and be arranged on this base plate, wherein the ratio of this impeller height and this impeller diameter is greater than 0.6.
Preferably, the blade root edge of this first flabellum group partly protrudes in outside the periphery of this base plate; Perhaps, the blade root edge of this first flabellum group does not protrude in outside the periphery of this base plate.
Preferably, the vane tip periphery of this first flabellum group has one first ring portion, to link each blade of this first flabellum group.This impeller more comprises one second flabellum group, be located on wheel hub around, this first flabellum group links by one second ring portion with this second flabellum group, and wherein the blade of the blade of this first flabellum group and this second flabellum group is staggered arrangement or symmetric arrays in the both sides of this second ring portion.The blade height of this first flabellum group can be more than or equal to the blade height of this second flabellum group.The top periphery of this wheel hub can be arc shape or stepped.
Edge is that for reaching above-mentioned purpose, a kind of ventilation plant of the present invention comprises a housing; One pedestal is arranged in this housing; And an impeller, be arranged on this pedestal, wherein this impeller comprises a wheel hub; One base plate is linked to this wheel hub; And one first flabellum group, be located on this wheel hub around and be arranged on this base plate, wherein the ratio of this impeller height and this impeller diameter is 0.8~0.9.
Edge is that for reaching above-mentioned purpose, a kind of ventilation plant of the present invention comprises a housing; One pedestal is arranged in this housing; And an impeller, be arranged on this pedestal, wherein this impeller comprises a wheel hub; One base plate is linked to this wheel hub; And one first flabellum group, be located on this wheel hub around and be arranged on this base plate, wherein the lobe numbers of this first flabellum group is 80~90.
Edge is that for reaching above-mentioned purpose, a kind of ventilation plant of the present invention comprises a housing; One pedestal is arranged in this housing; And an impeller, be arranged on this pedestal, wherein this impeller comprises a wheel hub; One base plate is linked to this wheel hub; And one first flabellum group, be located on this wheel hub around and be arranged on this base plate, wherein the ratio of this hub height and this impeller height is 0.3~0.55.
Edge is that for reaching above-mentioned purpose, a kind of ventilation plant of the present invention comprises a housing; One pedestal is arranged in this housing; One impeller is arranged on this pedestal, and wherein this impeller comprises a wheel hub; One base plate is linked to this wheel hub; And one first flabellum group, be located on this wheel hub around and be arranged on this base plate, wherein the ratio of this impeller height and this impeller diameter is greater than 0.6.
Preferably, this first flabellum group comprises a plurality of blades, and its lobe numbers is greater than 60.
Preferably, this pedestal extends in this housing and forms a containing space.
In addition, this ventilation plant more comprises a bearing sleeve, and its bottom extends through this pedestal and stretches to this containing space, and provides one or more bearing to be positioned in its perforate.
This ventilation plant more comprises a circuit board, is socketed on a side of this bearing sleeve, and this control circuit board is arranged in this containing space.
Again, this ventilation plant more comprises a drive unit, is placed in this wheel hub, and is accepted by this pedestal, and to drive this wheel rotation, its rotating shaft extends in the perforate of this bearing sleeve, and wherein this drive unit is preferably a Brushless DC motor.
This ventilation plant is preferably a single face wind input type centrifugal fan, or is a ventilation fan or ventilating fan.
Description of drawings
Fig. 1 is the stereogram of the employed impeller of traditional ventilation fan;
Fig. 2 A is the stereogram of a kind of impeller preferred embodiment of the present invention;
Fig. 2 B is the stereogram of another kind of impeller preferred embodiment of the present invention;
Fig. 3 is the generalized section of a kind of ventilation plant preferred embodiment of the present invention.
The primary component symbol description
10: base plate 11: wheel hub
12: blade 13: annulus
21,21 ': impeller 21a: wheel hub
21b: base plate 21c: the first flabellum group
21e: the first ring portion 21d: the second flabellum group
21f: second ring portion 22: housing
23: pedestal 24: containing space
25: bearing sleeve 27: circuit board
29: bearing 28: drive unit
26: rotating shaft 21g: rake
D: the diameter H of impeller: the height of impeller
H: the height of wheel hub
Embodiment
Hereinafter with reference to relevant drawings, a kind of ventilation plant and impeller thereof according to preferred embodiment of the present invention are described.Wherein components identical will be illustrated with identical reference marks.
See also Fig. 2 A and Fig. 2 B, it shows impeller 21 preferred embodiments of the employed different kenels of ventilation plant of the present invention.Impeller 21 shown in Fig. 2 A comprises a wheel hub 21a, and its top periphery becomes bent arc shape; One base plate 21b is connected in this wheel hub 21a; One first flabellum group 21c, be located on wheel hub 21a around and be arranged on this base plate 21b, this first flabellum group is made up of a plurality of blade, the root edge of each blade partly protrudes in outside the periphery of this base plate, that is the root edge part of each blade is unsettled.The blade of this first flabellum group 21c is in having more each blade that one first ring portion 21e links this first flabellum group 21c near near the external side brim its top.
Blade wheel structure shown in Fig. 2 B is roughly similar to the impeller 21 shown in Fig. 2 A, and difference is in this impeller 21 ' and comprises one first flabellum group 21c and one second flabellum group 21d, be located on wheel hub 21a around.This second flabellum group 21d is arranged on this base plate 21b, and this first flabellum group 21c and the second flabellum group 21d link by the second ring portion 2f.A plurality of blades of this first flabellum group 21c and a plurality of blades of the second flabellum group 21d can be staggered and arrange or symmetric arrays in the both sides up and down of this second ring portion 21f.The blade height of this first flabellum group 21c can be more than or equal to the blade height of the second flabellum group 21d.In addition, the blade root edge of this second flabellum group does not protrude in outside the periphery of this base plate.All the other identical structures are not then in addition for giving unnecessary details.
Shown in Fig. 2 A and Fig. 2 B, impeller of the present invention is to form in conjunction with the Blade Design of concentrated type with the profundity ratio, and the concentrated type blade can significantly promote fan duty, reduces noise.The lobe numbers of impeller shown in Fig. 2 A is 86, and the lobe numbers of the first and second flabellum groups of impeller shown in Fig. 2 B is respectively 83.According to conception of the present invention, the lobe numbers of impeller is preferably greater than 60.And under same noise, blade is intensive more, and the characteristic of air pressure air flow is good more.In addition, under same air quantity, the noise of concentrated type blade is lower.
See also Fig. 3, ventilation plant of the present invention comprises a housing 22; One pedestal 23 is arranged in this housing 22, and forms a containing space 24 to these housing 22 inner extension protuberances; One bearing sleeve 25, its bottom extends through this pedestal 23 and stretches to this containing space 24, circuit board 27 for ventilation plant is socketed on outside it, and this control circuit board 27 is arranged in this containing space 24, then places for one or more bearing 29 in this bearing sleeve 25; One drive unit 28 is placed in this wheel hub 21a, and is accepted by this pedestal 23, and its rotating shaft 26 extends in the perforate of this bearing sleeve 25.This drive unit 28 is preferably Brushless DC motor, and this circuit board 27 can be the control circuit board of Brushless DC motor, with the rotating speed of control motor.In addition, this base plate 21b is linked to this wheel hub 21a by a rake 21g, this rake 21g have straight line or bent arcuate surface with smooth and easy air-guiding towards blade, and this rake 21g is corresponding to the bump of this pedestal.The top periphery of this wheel hub becomes stepped.This wheel hub, rake, base plate, blade and ring portion can fit together after the indivedual moulding of single injection-molded or elder generation again.And this pedestal 23 and housing 22 also can fit together after the indivedual moulding of single injection-molded or elder generation again.
Impeller shown in Fig. 2 A or Fig. 2 B is arranged in the housing 22 of Fig. 3, at this with the impeller shown in Fig. 2 B but only to have one group of flabellum group be example, the diameter of supposing impeller is D, the height of impeller is H, then the advanced ratio (H/D) of impeller is preferably greater than 0.6, be more preferred from 0.8~0.9, and lobe numbers is preferably 80~90.And the ratio of the height h of wheel hub 21a and impeller height H is preferably 0.3~0.55.Ventilation plant of the present invention can be single face wind input type centrifugal fan, perhaps is ventilation fan or ventilating fan.
Comprehensive the above, ventilation unit of the present invention is in conjunction with concentrated type and the impeller of profundity than blade design, the ventilation fan identical with conventional size compared, and under identical air quantity, can significantly reduce the contribution of aerodynamic noise, also remarkable improving fan characteristics.
The above only is illustrative, but not is restricted person. Anyly do not break away from spirit of the present invention and category, and to its equivalent modifications of carrying out or change, all should comprise in the appended claim.

Claims (28)

1. impeller, it comprises:
Wheel hub;
Base plate is linked to this wheel hub; And
The first flabellum group, be located on this wheel hub around and be arranged on this base plate, wherein the ratio of this impeller height and this impeller diameter is 0.8~0.9.
2. impeller, it comprises:
Wheel hub;
Base plate is linked to this wheel hub; And
The first flabellum group, be located on this wheel hub around and be arranged on this base plate, wherein the lobe numbers of this first flabellum group is 80~90.
3. impeller, it comprises:
Wheel hub;
Base plate is linked to this wheel hub; And
The first flabellum group, be located on this wheel hub around and be arranged on this base plate, wherein the ratio of this hub height and this impeller height is 0.3~0.55.
4. impeller, it comprises:
Wheel hub;
Base plate is linked to this wheel hub; And
The first flabellum group, be located on this wheel hub around and be arranged on this base plate, wherein the ratio of this impeller height and this impeller diameter is greater than 0.6.
5. as the described impeller of claim 2,3 or 4, wherein the ratio of this impeller height and this impeller diameter is 0.8~0.9.
6. as the described impeller of claim 1,3 or 4, wherein the lobe numbers of this first flabellum group is greater than 60.
7. impeller as claimed in claim 6, wherein the lobe numbers of this first flabellum group is 80~90.
8. as the described impeller of claim 1,2 or 4, wherein the ratio of this hub height and this impeller height is 0.3~0.55.
9. as each described impeller in the claim 1 to 4, wherein the vane tip periphery of this first flabellum group has one first ring portion, to link each blade of this first flabellum group.
10. impeller as claimed in claim 9, it also comprises the second flabellum group, be located on wheel hub around, this first flabellum group links by one second ring portion with this second flabellum group, and wherein the blade of the blade of this first flabellum group and this second flabellum group is staggered arrangement or symmetric arrays in the both sides of this second ring portion.
11. impeller as claimed in claim 10, wherein the blade height of this first flabellum group is more than or equal to the blade height of this second flabellum group.
12. a ventilation plant, it comprises:
Housing;
Pedestal is arranged in this housing; And
Impeller is arranged on this pedestal, and it comprises:
Wheel hub;
Base plate is linked to this wheel hub; And
The first flabellum group, be located on this wheel hub around and be arranged on this base plate, wherein the ratio of this impeller height and this impeller diameter is 0.8~0.9.
13. a ventilation plant, it comprises:
Housing;
Pedestal is arranged in this housing; And
Impeller is arranged on this pedestal, and it comprises:
Wheel hub;
Base plate is linked to this wheel hub; And
The first flabellum group, be located on this wheel hub around and be arranged on this base plate, wherein the lobe numbers of this first flabellum group is 80~90.
14. a ventilation plant, it comprises:
Housing;
Pedestal is arranged in this housing; And
Impeller is arranged on this pedestal, and it comprises:
Wheel hub;
Base plate is linked to this wheel hub; And
The first flabellum group, be located on this wheel hub around and be arranged on this base plate, wherein the ratio of this hub height and this impeller height is 0.3~0.55.
15. a ventilation plant, it comprises:
Housing;
Pedestal is arranged in this housing;
Impeller is arranged on this pedestal, and it comprises:
Wheel hub;
Base plate is linked to this wheel hub; And
The first flabellum group, be located on this wheel hub around and be arranged on this base plate, wherein the ratio of this impeller height and this impeller diameter is greater than 0.6.
16. as the described ventilation plant of claim 13,14 or 15, wherein the ratio of this impeller height and this impeller diameter is 0.8~0.9.
17. as the described ventilation plant of claim 12,14 or 15, wherein this first flabellum group comprises a plurality of blades, its lobe numbers is greater than 60.
18. as the described ventilation plant of claim 12,13 or 15, wherein the ratio of this hub height and this impeller height is 0.3~0.55.
19. as each described ventilation plant in the claim 12 to 15, wherein the vane tip periphery of this first flabellum group has one first ring portion, to link each blade of this first flabellum group.
20. ventilation plant as claimed in claim 19, wherein this impeller also comprises one second flabellum group, be located on wheel hub around, this first flabellum group and this second flabellum group link by one second ring portion, and the blade of the blade of this first flabellum group and this second flabellum group is staggered and arranges or symmetric arrays in the both sides of this second ring portion.
21. ventilation plant as claimed in claim 20, wherein the blade height of this first flabellum group is more than or equal to the blade height of this second flabellum group.
22. as each described ventilation plant in the claim 12 to 15, wherein this pedestal swells extension and forms a containing space in this housing, this ventilation plant also comprises a bearing sleeve, its bottom extends through this pedestal and stretches to this containing space, and provides one or more bearing to be positioned in its perforate.
23. ventilation plant as claimed in claim 22, it also comprises a circuit board, is socketed on a side of this bearing sleeve, and this control circuit board is arranged in this containing space.
24. as each described ventilation plant in the claim 12 to 15, it also comprises a drive unit, is placed in this wheel hub, and is accepted by this pedestal, to drive this wheel rotation, a rotating shaft of this drive unit extends in the perforate of this bearing sleeve.
25. ventilation plant as claimed in claim 24, wherein this drive unit is a Brushless DC motor.
26. as each described ventilation plant in the claim 12 to 15, wherein this base plate is linked to this wheel hub by a rake, this rake has a straight line or bent arcuate surface, with smooth and easy air-guiding towards blade.
27. as each described ventilation plant in the claim 12 to 15, it is a single face wind input type centrifugal fan.
28. as each described ventilation plant in the claim 12 to 15, it is a ventilation fan or ventilating fan.
CN200910002031A 2009-01-08 2009-01-08 Ventilation device and impeller thereof Pending CN101776089A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN200910002031A CN101776089A (en) 2009-01-08 2009-01-08 Ventilation device and impeller thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN200910002031A CN101776089A (en) 2009-01-08 2009-01-08 Ventilation device and impeller thereof

Related Child Applications (1)

Application Number Title Priority Date Filing Date
CN201410732594.5A Division CN104500443A (en) 2009-01-08 2009-01-08 Ventilation device and impeller thereof

Publications (1)

Publication Number Publication Date
CN101776089A true CN101776089A (en) 2010-07-14

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ID=42512641

Family Applications (1)

Application Number Title Priority Date Filing Date
CN200910002031A Pending CN101776089A (en) 2009-01-08 2009-01-08 Ventilation device and impeller thereof

Country Status (1)

Country Link
CN (1) CN101776089A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108397400A (en) * 2017-02-08 2018-08-14 信浓绢糸株式会社 Blowing plant
CN110107514A (en) * 2018-02-01 2019-08-09 佛山市建准电子有限公司 Centrifugal fan and its impeller
CN110319035A (en) * 2018-03-30 2019-10-11 日本电产伺服有限公司 Centrifugal fan

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108397400A (en) * 2017-02-08 2018-08-14 信浓绢糸株式会社 Blowing plant
CN110107514A (en) * 2018-02-01 2019-08-09 佛山市建准电子有限公司 Centrifugal fan and its impeller
CN110319035A (en) * 2018-03-30 2019-10-11 日本电产伺服有限公司 Centrifugal fan

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Application publication date: 20100714

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