CN203023120U - Centrifugal fan, centrifugal blower and air-cooled type refrigeration equipment - Google Patents
Centrifugal fan, centrifugal blower and air-cooled type refrigeration equipment Download PDFInfo
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- CN203023120U CN203023120U CN 201220633199 CN201220633199U CN203023120U CN 203023120 U CN203023120 U CN 203023120U CN 201220633199 CN201220633199 CN 201220633199 CN 201220633199 U CN201220633199 U CN 201220633199U CN 203023120 U CN203023120 U CN 203023120U
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- aerofoil profile
- curved vane
- profile curved
- interior hub
- centrifugal
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Abstract
The utility model provides a centrifugal fan, a centrifugal blower and air-cooled type refrigeration equipment. The centrifugal fan comprises a chassis, an inner hub and a plurality of blades, wherein the inner hub is fixed in the middle of the chassis, and the plurality of blades surround the inner hub in a distributed mode and are fixed on the chassis. The centrifugal fan is characterized in that each blade is a wing-shaped curved blade. By means of the adoption of the wing-shaped curved blades, wing-shaped structures of the wing-shaped curved blades can effectively reduce obstruction of airflow so that the airflow can pass smoothly along the surfaced of the wing-shaped curved blades, namely a lift-drag ratio of the wing-shaped curved blades is increased, air blowing capacity of the wing-shaped curved blades is enhanced, air outlet quantity of the centrifugal blower is effectively increased on the premise that a rotation speed of the centrifugal blower is unchanged, and therefore power consumption of the air-cooled type refrigeration equipment is reduced.
Description
Technical field
The utility model relates to chiller plant, relates in particular to a kind of centrifugal cutter, centrifugal blower and air cooling refrigeration equipment.
Background technique
At present, chiller plant (such as refrigerator, refrigerator etc.) is household electric appliance commonly used in people's daily life, chiller plant is divided into air cooling refrigeration equipment and direct cooling type chiller plant, and air cooling refrigeration equipment is high because of its refrigerating efficiency, can not produce frosting in casing and be used widely.Usually adopt centrifugal blower or axial-flow blower cold wind to be sent in the storage space of casing in the casing of air cooling refrigeration equipment, realization refrigerates the article in storage space or is freezing.In prior art, the fan of centrifugal blower generally includes chassis, interior hub and blade, interior hub is positioned at the middle part on chassis, blade evenly distributes around interior hub and is fixed on the chassis, blade on fan adopts the bended plate type blade usually, in order to satisfy the larger air quantity demand of chiller plant, the size of accelerating the rotating speed of centrifugal blower or increasing whole centrifugal blower by needs realizes, but can increase the noise of blower fan when increasing speed, increase blower sizes and require larger installing space, performance difficulty causes possibly realizing increasing air quantity.
Summary of the invention
Technical problem to be solved in the utility model is: a kind of centrifugal cutter, centrifugal blower and air cooling refrigeration equipment are provided, solve the less defective of air output of centrifugal blower in prior art, realization increases the air output of centrifugal blower by changing the centrifugal cutter blade structure, to reduce the energy consumption of air cooling refrigeration equipment.
For achieving the above object, the utility model provides a kind of centrifugal cutter, comprises chassis, interior hub and a plurality of blade, and described interior hub is fixed on the middle part on described chassis, described blade distributes and is fixed on described chassis around described interior hub, and described blade is the aerofoil profile curved vane.
Further, the front edge of described aerofoil profile curved vane is near described interior hub, and the hinder marginal part of described aerofoil profile curved vane is away from described interior hub.
Further, also comprise trembleuse cup, described chassis, described interior hub, described aerofoil profile curved vane and the described trembleuse cup structure that is formed in one.
Further, the entrance established angle of described aerofoil profile curved vane is 28 degree-32 degree, the exit installation angle of described aerofoil profile curved vane is 28 degree-32 degree, and the radius of curvature of the mean camber line of described aerofoil profile curved vane is 50mm-55mm, and the thickness chord length of described aerofoil profile curved vane is than being 0.02-0.06.
Further, the entrance established angle of described aerofoil profile curved vane is 29.69 degree, the exit installation angle of described aerofoil profile curved vane is 30 degree, and the radius of curvature of the mean camber line of described aerofoil profile curved vane is 53.23mm, and the thickness chord length ratio of described aerofoil profile curved vane is 0.04.
Further, the distance between the leading edge of described aerofoil profile curved vane and described interior hub axis is 25mm-30mm, and the radius of curvature of described interior hub sidewall is 20mm-25mm.
Further, the distance between the leading edge of described aerofoil profile curved vane and described interior hub axis is 27mm, and the radius of curvature of described interior hub sidewall is 23mm.
Further, described aerofoil profile curved vane evenly distribute around described interior hub.
A kind of centrifugal blower comprises centrifugal cutter as above.
A kind of air cooling refrigeration equipment comprises centrifugal blower as mentioned above
The centrifugal cutter that the utility model provides, centrifugal blower and air cooling refrigeration equipment, by adopting the aerofoil profile curved vane, the airfoil structure of aerofoil profile curved vane can reduce stopping air-flow effectively, thereby air-flow can be passed through smoothly along the surface of aerofoil profile curved vane, namely improve its ratio of lift coefficient to drag coefficient, strengthen the draft capacity of aerofoil profile curved vane, realization is under the identical prerequisite of the rotating speed of centrifugal blower, effectively increase the air output of centrifugal blower by centrifugal cutter, thereby reduced the energy consumption of air cooling refrigeration equipment.
Description of drawings
Fig. 1 is the utility model centrifugal cutter embodiment's structural representation;
Fig. 2 be in Fig. 1 A-A to sectional view;
Fig. 3 is the utility model centrifugal cutter embodiment's stereogram;
Fig. 4 is the structural representation of aerofoil profile curved vane in the utility model centrifugal cutter embodiment.
As shown in Figures 1 to 4, chassis 1, interior hub 2, aerofoil profile curved vane 3, trembleuse cup 4, front edge 31, hinder marginal part 32, mean camber line 30, entrance established angle α, exit installation angle β, concentric circle one R1, concentric circle two R2.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further details.
As shown in Figure 1, the present embodiment centrifugal cutter comprises chassis 1, interior hub 2 and a plurality of blade, and interior hub 2 is fixed on the middle part on chassis 1, and blade distributes and is fixed on chassis 1 around interior hub 2, and blade is aerofoil profile curved vane 3.The present embodiment centrifugal cutter is fixed on the machine shaft of centrifugal blower by interior hub 21, and extraneous air is drawn between adjacent two aerofoil profile curved vane 3 from interior hub 2, and air will flow along aerofoil profile curved vane 3.Wherein, the front edge 31 of aerofoil profile curved vane 3 is near interior hub 2, the hinder marginal part 32 of aerofoil profile curved vane 3 is away from interior hub 2, and air enters between two aerofoil profile curved vane 3 from the front edge 31 of aerofoil profile curved vane 3, then exports from the hinder marginal part 32 of aerofoil profile curved vane 3.And the present embodiment centrifugal cutter also comprises trembleuse cup 4, and trembleuse cup 4 is fixed on the hinder marginal part 32 of each aerofoil profile curved vane 3, and trembleuse cup 4 will be followed aerofoil profile curved vane 3 and together be rotated.in addition, concentric circle one R1 and concentric circle two R2 and the concentric setting of interior hub 2, the distance of the leading edge of the center of circle of interior hub 2 and aerofoil profile curved vane 3 is the radius of concentric circle one R1, the distance of the trailing edge of the center of circle of interior hub 2 and aerofoil profile curved vane 3 is the radius of concentric circle two R2, angle between the tangent line at mean camber line 30 tangent lines of aerofoil profile curved vane 3 and concentric circle one R1 place is entrance established angle α, angle between the tangent line at mean camber line 30 tangent lines of aerofoil profile curved vane 3 and concentric circle two R2 places is exit installation angle β, the entrance established angle α of the aerofoil profile curved vane 3 in the present embodiment is 28 degree-32 degree, the exit installation angle β of aerofoil profile curved vane 3 is 28 degree-32 degree, the radius of curvature of the mean camber line 30 of aerofoil profile curved vane 3 is 50mm-55mm, the thickness chord length of aerofoil profile curved vane 3 is than being 0.02-0.06, preferably, the entrance established angle α of aerofoil profile curved vane 3 is 29.69 degree, and the exit installation angle β of aerofoil profile curved vane 3 is 30 degree, and the radius of curvature of the mean camber line 30 of aerofoil profile curved vane 3 is 53.23mm, and the thickness chord length ratio of aerofoil profile curved vane 3 is 0.04.Distance between the leading edge of the aerofoil profile curved vane 3 in the present embodiment and interior hub 2 axis is 25mm-30mm, and the radius of curvature of interior hub 2 sidewalls is 20mm-25mm; Preferably, the distance between the leading edge of aerofoil profile curved vane 3 and interior hub 2 axis is 27mm, and the radius of curvature of interior hub 2 sidewalls is 23mm.And aerofoil profile curved vane 3 evenly distribute around interior hub 2, for example: can be around even 11 the aerofoil profile curved vane 3 that distribute of interior hub 2, and chassis 1, interior hub 2, aerofoil profile curved vane 3 and trembleuse cup 4 can be an overall structure, for example can adopt the processes of molding and forming to form the present embodiment centrifugal cutter.
by leaf production being become aerofoil profile curved vane 3, aerofoil profile curved vane 3 have advantages of bended plate type blade and airfoil fan simultaneously, the airfoil structure of aerofoil profile curved vane 3 makes its resistance of air little, aerodynamic efficiency is high, air-flow can be passed through along the surface of aerofoil profile curved vane 3 smoothly, guarantee that aerofoil profile curved vane 3 have better aerodynamic performance, strengthen the draft capacity of aerofoil profile curved vane 3, realization is under the identical prerequisite of the rotating speed of centrifugal blower, effectively increase the air output of centrifugal blower by the present embodiment centrifugal cutter, reduced the energy consumption of air cooling refrigeration equipment.And the front edge 31 of aerofoil profile curved vane 3 is near interior hub 2, strengthened aerofoil profile curved vane 3 reliabilities of operation and to the capture ability of wind, more effectively improved air output.By hinder marginal part 32 places at aerofoil profile curved vane 3, trembleuse cup 4 is set, trembleuse cup 4 can alleviate the vibration that aerofoil profile curved vane 3 produce when rotated effectively, thereby reduces the noise of the present embodiment centrifugal cutter.By rational entrance established angle α and exit installation angle β are set, and the aerofoil profile curved vane 3 of size reasonable in design, obtained to have the aerofoil profile curved vane 3 of better aerodynamic performance, further strengthen the air-out ability of monolithic aerofoil profile curved vane 3.And the size by hub 2 in suitable increase can increase air output, the intake grill that the aerofoil profile curved vane 3 that also make simultaneously form near interior hub 2 more effectively; And the sidewall of interior hub 2 is set to arcuate structure, can make air can enter into smoothly front edge 31 places of monolithic aerofoil profile curved vane 3 through the sidewall of interior hub 2, make aerofoil profile curved vane 3 can catch to greatest extent the air of maximum flow, more effectively strengthened the capture ability of 3 pairs of wind of aerofoil profile curved vane.
The utility model also provides a kind of centrifugal blower, comprises the centrifugal cutter in the utility model centrifugal cutter embodiment, and its concrete structure can referring to the record of the utility model centrifugal cutter embodiment and accompanying drawing 1-Fig. 4, not repeat them here.
The utility model provides again a kind of air cooling refrigeration equipment, comprises the centrifugal blower in the utility model centrifugal blower embodiment.
The centrifugal cutter that the utility model provides, centrifugal blower and air cooling refrigeration equipment, by adopting the aerofoil profile curved vane, the airfoil structure of aerofoil profile curved vane can reduce stopping air-flow effectively, thereby air-flow can be passed through smoothly along the surface of aerofoil profile curved vane, namely improve its ratio of lift coefficient to drag coefficient, strengthen the draft capacity of aerofoil profile curved vane, realization is under the identical prerequisite of the rotating speed of centrifugal blower, effectively increase the air output of centrifugal blower by changing the centrifugal cutter blade structure, thereby reduced the energy consumption of air cooling refrigeration equipment.
It should be noted that at last: above embodiment only in order to the technical solution of the utility model to be described, is not intended to limit; Although with reference to previous embodiment, the utility model is had been described in detail, those of ordinary skill in the art is to be understood that: it still can be modified to the technological scheme that aforementioned each embodiment puts down in writing, and perhaps part technical characteristics wherein is equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution break away from the spirit and scope of each embodiment's technological scheme of the utility model.
Claims (8)
1. a centrifugal cutter, comprise chassis, interior hub, a plurality of blade and trembleuse cup, and described interior hub is fixed on the middle part on described chassis, and described blade distributes and is fixed on described chassis around described interior hub, it is characterized in that, described blade is the aerofoil profile curved vane; The front edge of described aerofoil profile curved vane is near described interior hub, and the trailing edge section of described aerofoil profile curved vane is away from described interior hub; Described chassis, described interior hub, described aerofoil profile curved vane and the described trembleuse cup structure that is formed in one.
2. centrifugal cutter according to claim 1, it is characterized in that, the entrance established angle of described aerofoil profile curved vane is 28 degree-32 degree, the exit installation angle of described aerofoil profile curved vane is 28 degree-32 degree, the radius of curvature of the mean camber line of described aerofoil profile curved vane is 50mm-55mm, and the thickness chord length of described aerofoil profile curved vane is than being 0.02-0.06.
3. centrifugal cutter according to claim 2, it is characterized in that, the entrance established angle of described aerofoil profile curved vane is 29.69 degree, the exit installation angle of described aerofoil profile curved vane is 30 degree, the radius of curvature of the mean camber line of described aerofoil profile curved vane is 53.23mm, and the thickness chord length ratio of described aerofoil profile curved vane is 0.04.
4. centrifugal cutter according to claim 1, is characterized in that, the distance between the leading edge of described aerofoil profile curved vane and described interior hub axis is 25mm-30mm, and the radius of curvature of described interior hub sidewall is 20mm-25mm.
5. centrifugal cutter according to claim 4, is characterized in that, the distance between the leading edge of described aerofoil profile curved vane and described interior hub axis is 27mm, and the radius of curvature of described interior hub sidewall is 23mm.
6. centrifugal cutter according to claim 1, is characterized in that, described aerofoil profile curved vane evenly distribute around described interior hub.
7. a centrifugal blower, is characterized in that, comprises described centrifugal cutter as arbitrary in claim 1-6.
8. an air cooling refrigeration equipment, is characterized in that, comprises centrifugal blower as claimed in claim 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220633199 CN203023120U (en) | 2012-11-27 | 2012-11-27 | Centrifugal fan, centrifugal blower and air-cooled type refrigeration equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220633199 CN203023120U (en) | 2012-11-27 | 2012-11-27 | Centrifugal fan, centrifugal blower and air-cooled type refrigeration equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203023120U true CN203023120U (en) | 2013-06-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220633199 Expired - Lifetime CN203023120U (en) | 2012-11-27 | 2012-11-27 | Centrifugal fan, centrifugal blower and air-cooled type refrigeration equipment |
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| CN (1) | CN203023120U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103410773A (en) * | 2013-08-06 | 2013-11-27 | 浙江三工汽车零部件有限公司 | Automobile water pump |
-
2012
- 2012-11-27 CN CN 201220633199 patent/CN203023120U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103410773A (en) * | 2013-08-06 | 2013-11-27 | 浙江三工汽车零部件有限公司 | Automobile water pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: HISENSE (SHANDONG) REFRIGERATOR CO., LTD. Free format text: FORMER OWNER: HISENSE (BEIJING) ELECTRICAL EQUIPMENT CO., LTD. Effective date: 20131227 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20131227 Address after: 266101 Zhuzhou Road, Laoshan District, Shandong, No. 151, No. Patentee after: HISENSE (SHANDONG) REFRIGERATOR Co.,Ltd. Address before: 266101 Zhuzhou Road, Laoshan District, Shandong, No. 151, No. Patentee before: HISENSE BEIJING ELECTRIC Co.,Ltd. |
|
| CP02 | Change in the address of a patent holder | ||
| CP02 | Change in the address of a patent holder |
Address after: 266000 Qingdao, Pingdu City, South Village, Hisense Road, No. 8, No. Patentee after: HISENSE (SHANDONG) REFRIGERATOR Co.,Ltd. Address before: 266101 Zhuzhou Road, Laoshan District, Shandong, No. 151, No. Patentee before: HISENSE (SHANDONG) REFRIGERATOR Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130626 |