CN202132272U - Induction cooker and radiator fan thereof - Google Patents
Induction cooker and radiator fan thereof Download PDFInfo
- Publication number
- CN202132272U CN202132272U CN201120242250U CN201120242250U CN202132272U CN 202132272 U CN202132272 U CN 202132272U CN 201120242250 U CN201120242250 U CN 201120242250U CN 201120242250 U CN201120242250 U CN 201120242250U CN 202132272 U CN202132272 U CN 202132272U
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- circular arc
- blade
- arc
- curvature
- radiation fan
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Abstract
The utility model discloses an induction cooker and a radiator fan thereof. The radiator fan includes a hub and a plurality of blades arranged on the periphery of the hub, wherein inflection points are arranged on the inlet edges of the blades, positioned in the positions which are 7/10 R to 9/10 R of the inlet edges of the blades, and used for dividing the inlet edges of the blades into first arcs and second arcs; the curvature of each first arc is smaller than that of each second arc; the outer edge of each blade consists of a long arc and a short arc; the arc length ratio of each long arc to each short arc is 5:1 to 5:2; and the short arcs are arranged adjacent to the inlet edges of the blades. In the induction cooker and the radiator fan thereof provided by the utility model, the outlet air of the radiator fan is increased on the basis that the blade amount remains unchanged, so that the radiator fan not only meets the heat radiation requirement of induction cooker, but also has low noise.
Description
Technical field
The utility model relates to field of household appliances, refers in particular to a kind of electromagnetism stove and radiation fan thereof.
Background technique
Electromagnetism stove be through the electronic circuit board constituent element produce alternating magnetic field, when when containing irony pan bottom placement boiler face; Pan promptly cuts the alternation magnetic line of force and partly produces the electric current (being eddy current) of alternation in the pan bottom metal; Eddy current makes the free electron in the ferrous material of pan bottom be the alternate motion of whirlpool shape, and the Joule heat (P=I^2*R) through electric current makes the bottom of a pan heating.Because having of electromagnetism stove heated soon, is prone to characteristics such as cleaning, Security height, becomes a kind of kitchen range that more and more get consumer reception.
Be provided with radiation fan in the electromagnetism stove.The radiation fan of existing technology electromagnetism stove all is seven or nine fan blades; Though this radiation fan can satisfy the radiating requirements of electromagnetism stove; But owing to the increase of radiation fan noise along with the number of blade increases; So all there are the bigger scarce filling of noise in existing seven or nine fan blades, make the Environmental Conditions variation of electromagnetism stove.
Summary of the invention
The goal of the invention of the utility model provides a kind of electromagnetism stove and radiation fan thereof; It can overcome the defective of existing technology, on the basis that does not increase blade quantity, increases the air output of radiation fan; Make radiation fan under the situation that satisfies the electromagnetic oven heat radiation requirement, noise is low.
The utility model is achieved in that
A kind of radiation fan; A plurality of blades that it includes hub and is located at said hub periphery, said blade comprise that entrance edge of blade reaches and said entrance edge of blade adjacent vanes outer, and the radius of said entrance edge of blade is R; Said entrance edge of blade is provided with flex point; The 7/10R to 9/10R that said flex point is positioned at said entrance edge of blade locates, and said flex point is divided into first circular arc and second circular arc with said entrance edge of blade, and said first circular arc is near said hub; Said second circular arc is away from said hub, and the curvature of said first circular arc is less than the curvature of said second circular arc.
Preferably, said blade outer includes oval arc and short circular arc, and said oval arc is 5:1 to 5:2 with the arc length ratio of said short circular arc, and said short circular arc is near said entrance edge of blade setting.
Preferably, the radius of curvature of said first circular arc is 45mm to 55mm.
Preferably, the radius of curvature of said second circular arc is 30mm to 35mm.
Preferably, the radius of curvature of said oval arc is 20mm to 25mm.
Preferably, the radius of curvature of said short circular arc is 55mm to 65mm.
Preferably, said radiation fan includes 5 radiator shutters.
The utility model also provides a kind of electromagnetism stove, and it comprises like above each described radiation fan.
The utility model electromagnetism stove and radiation fan thereof compared with prior art have following beneficial effect:
The utility model is through the structure of improvement entrance edge of blade and blade outer; The length of blade external diameter is bigger by 10% to 15% than the length of the blade external diameter of existing technology; Need the blade of lesser amt just can reach the demand of electromagnetic oven heat radiation, thereby reduce the air quantity of radiation fan; Evidence, 5 blades of the utility model can reach the air quantity that existing technology adopts 7 blades, under the condition of the demand that satisfies electromagnetic oven heat radiation, more than the noise reduction 10dB (A) with radiation fan.
Description of drawings
Fig. 1 is the structural representation of the utility model radiation fan.
Embodiment
Embodiment to the utility model is elaborated below in conjunction with accompanying drawing:
The utility model electromagnetism stove, it includes radiation fan, and is as shown in Figure 1, and said radiation fan includes hub 1 and is located at a plurality of blades 2 of said hub 1 periphery.
Said blade 2 comprises entrance edge of blade 21 and and said entrance edge of blade 21 adjacent vanes outers 22.The radius of said entrance edge of blade 21 is R; Said entrance edge of blade 21 is provided with flex point 23, and the 7/10R to 9/10R that said flex point 23 is positioned at said entrance edge of blade 21 locates, and said flex point 23 is divided into first circular arc 4 and second circular arc 5 with said entrance edge of blade; Said first circular arc 4 and said second circular arc, 5 rounding ofves; And said first circular arc 4 is positioned at said flex point 23 the place aheads, promptly is provided with near said hub 1, and said second circular arc 5 is positioned at said flex point 23 rears; Promptly be arranged at a side, and the curvature of said first circular arc 4 is less than the curvature of said second circular arc 5 away from said hub 1.Said blade outer 22 includes oval arc 6 and short circular arc 7, and the arc length of said oval arc 6 and said short circular arc 7 is than being 5:1 to 5:2, and 7 sections on said short circular arc is provided with near said entrance edge of blade 21.
In the utility model, preferred said radiation fan includes 5 radiator shutters 2.The radius of curvature of said first circular arc 4 is 45mm to 55mm, and the radius of curvature of said second circular arc 5 is 30mm to 35mm; The radius of curvature of said oval arc 6 is 20mm to 25mm, and the radius of curvature of said short circular arc 7 is 55mm to 65mm.
Embodiment one:
The radius of curvature of preferred said first circular arc 4 is 45mm, and the radius of curvature of said second circular arc 5 is 30mm; The radius of curvature of said oval arc 6 is 20mm, and the radius of curvature of said short circular arc 7 is 55mm.
Embodiment two:
The radius of curvature of preferred said first circular arc 4 is 55mm, and the radius of curvature of said second circular arc 5 is 35mm; The radius of curvature of said oval arc 6 is 25mm, and the radius of curvature of said short circular arc 7 is 65mm.
Embodiment three:
The radius of curvature of preferred said first circular arc 4 is 53.7mm, and the radius of curvature of said second circular arc 5 is 32.5mm; The radius of curvature of said oval arc 6 is 21.8mm, and the radius of curvature of said short circular arc 7 is 63mm.
More than be merely the specific embodiment of the utility model, do not limit the protection domain of the utility model with this; Do not violate any replacement and the improvement of being done on the basis of the utility model design, all belonging to the protection domain of the utility model.
Claims (8)
1. radiation fan, a plurality of blades that it includes hub and is located at said hub periphery, said blade comprise entrance edge of blade and with said entrance edge of blade adjacent vanes outer; The radius of said entrance edge of blade is R; It is characterized in that said entrance edge of blade is provided with flex point, the 7/10R to 9/10R that said flex point is positioned at said entrance edge of blade locates; Said flex point is divided into first circular arc and second circular arc with said entrance edge of blade; Said first circular arc is near said hub, and said second circular arc is away from said hub, and the curvature of said first circular arc is less than the curvature of said second circular arc.
2. radiation fan as claimed in claim 1 is characterized in that, said blade outer includes oval arc and short circular arc, and said oval arc is 5:1 to 5:2 with the arc length ratio of said short circular arc, and said short circular arc is near said entrance edge of blade setting.
3. radiation fan as claimed in claim 1 is characterized in that, the radius of curvature of said first circular arc is 45mm to 55mm.
4. radiation fan as claimed in claim 1 is characterized in that, the radius of curvature of said second circular arc is 30mm to 35mm.
5. radiation fan as claimed in claim 1 is characterized in that, the radius of curvature of said oval arc is 20mm to 25mm.
6. radiation fan as claimed in claim 1 is characterized in that, the radius of curvature of said short circular arc is 55mm to 65mm.
7. radiation fan as claimed in claim 1 is characterized in that, said radiation fan includes 5 radiator shutters.
8. an electromagnetism stove is characterized in that, it comprises like each described radiation fan of claim 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120242250U CN202132272U (en) | 2011-07-11 | 2011-07-11 | Induction cooker and radiator fan thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120242250U CN202132272U (en) | 2011-07-11 | 2011-07-11 | Induction cooker and radiator fan thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202132272U true CN202132272U (en) | 2012-02-01 |
Family
ID=45521042
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120242250U Expired - Lifetime CN202132272U (en) | 2011-07-11 | 2011-07-11 | Induction cooker and radiator fan thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202132272U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105008723A (en) * | 2013-02-22 | 2015-10-28 | 日立空调·家用电器株式会社 | Propeller fan and air conditioner equipped with same |
-
2011
- 2011-07-11 CN CN201120242250U patent/CN202132272U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105008723A (en) * | 2013-02-22 | 2015-10-28 | 日立空调·家用电器株式会社 | Propeller fan and air conditioner equipped with same |
| CN105008723B (en) * | 2013-02-22 | 2017-08-15 | 日立空调·家用电器株式会社 | Screw ventilation and the air conditioner for possessing the screw ventilation |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120201 |