CN202140342U - Air conditioner and centrifugal fan blade thereof - Google Patents
Air conditioner and centrifugal fan blade thereof Download PDFInfo
- Publication number
- CN202140342U CN202140342U CN201120267010U CN201120267010U CN202140342U CN 202140342 U CN202140342 U CN 202140342U CN 201120267010 U CN201120267010 U CN 201120267010U CN 201120267010 U CN201120267010 U CN 201120267010U CN 202140342 U CN202140342 U CN 202140342U
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- blade
- edge face
- centrifugation
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- leading edge
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- 238000005119 centrifugation Methods 0.000 claims abstract description 39
- 238000004378 air conditioning Methods 0.000 claims description 6
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
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Abstract
The utility model provides an air conditioner and centrifugation fan blade thereof, wherein the centrifugation fan blade includes: the blade comprises a front edge surface, a concave edge surface, a rear edge surface and a flange surface which are connected in sequence; the flange face and/or the recess face includes at least two arcs of different curvature. The utility model discloses a concave edge face and/or the flange face of blade include the different arc of two section at least curvatures, have consequently changed the concrete structure of current centrifugal fan blade for under the certain circumstances of rotational speed, improved the efficiency of centrifugal fan blade effectively, still improved the anti-noise performance of air conditioner, and saved the electric power energy.
Description
Technical field
The utility model relates to centrifugation blade, more specifically, relates to a kind of centrifugation blade of low noise and has the air conditioner of this centrifugation blade.
Background technique
At present, centrifugation blade is installed usually in the air conditioner, using the purpose of centrifugation blade is to make air-flow pass heat exchanger, and then makes the refrigerant in air-flow and the heat exchanger carry out heat exchange, thereby reaches refrigeration or heating effect.
Yet, in the prior art, using the centrifugation blade of multiple wing forward direction usually, the vane type line of its cross section is made up of single circular arc.As shown in Figure 1, centrifugation blade 100 of the prior art comprises blade 101, wherein; Blade 101 has leading edge face 1, rear surface 2, recessed edge face 3 and flange surface 4, and wherein, recessed edge face 3 is only formed by circular arc R 1; Flange surface 4 is only formed by circular arc R 2; This blade does not perhaps have certain variational regularity along chord length direction equal thickness on its thickness direction, wherein, the chord length direction is meant the direction by leading edge face 1 to rear surface 2; Therefore, this centrifugation blade of the prior art has the shortcoming that efficient is lower, noise is bigger.
The model utility content
The utility model aims to provide a kind of air conditioner and centrifugation blade thereof, to solve the problem that existing technology efficient is lower, noise is bigger.
For solving the problems of the technologies described above, an aspect according to the utility model provides a kind of centrifugation blade, comprising: blade, blade comprise leading edge face, recessed edge face, rear surface and the flange surface that connects successively; Recessed edge face and/or flange surface comprise at least two sections arcs that curvature is different.
Further, recessed edge face comprises two sections circular arcs, and the radius ratio of two sections circular arcs of recessed edge face is 1.1～1.5.
Further, flange surface comprises two sections circular arcs, and the radius ratio of two sections circular arcs of flange surface is 0.2～0.8.
Further, the thickness of the pairing blade of every bit on the chord length direction from the leading edge face to rear surface is:
When x≤A,
When A＜x≤1, y=f;
Wherein, n is the natural number more than or equal to 4; I is the integer of 0～n; Y is a thickness; X is the ratio of the distance and the distance between leading edge face and the rear surface of every bit and leading edge face; 0.6≤A≤1; Ki is a constant; F is a constant.
Further, the maximum ga(u)ge of blade is positioned at the zone of x=0.15～0.6.
Further, the maximum ga(u)ge of blade is positioned at the x=0.3 place.
Further, the leading edge mask has circular arc, the thickness of corresponding blade when the diameter of this circular arc equals x=0.025.
Further, blade has a plurality of, and a plurality of blades are arranged to annular array, and the inscribe diameter of a circle between adjacent two blades increases earlier along the direction by leading edge face to rear surface and reduces.
Further; Form passage between the flange surface of a blade in adjacent two blades and the recessed edge face of another blade; Passage is divided into air intake and outlet air end by the line along the mid point of passage bearing of trend along the recessed edge face of the mid point of passage bearing of trend and another blade of the flange surface of a blade; Wherein, Air intake is positioned at a side of the leading edge face of two adjacent blades, and outlet air end is positioned at a side of the rear surface of two adjacent blades, and the inscribe diameter of a circle at line place is 1～1.1 with the ratio range that is positioned at the inscribe diameter of a circle of air intake.
Further; Form passage between the flange surface of a blade in adjacent two blades and the recessed edge face of another blade; Passage is divided into air intake and outlet air end by the line along the mid point of passage bearing of trend along the recessed edge face of the mid point of passage bearing of trend and another blade of the flange surface of a blade; Wherein, Air intake is positioned at a side of the leading edge face of two adjacent blades, and outlet air end is positioned at a side of the rear surface of two adjacent blades, and the inscribe diameter of a circle at line place is 1～1.35 with the ratio range that is positioned at the inscribe diameter of a circle of outlet air end.
An aspect according to the utility model provides a kind of air conditioner, and it comprises air-conditioning draught fan, and air-conditioning draught fan comprises above-mentioned centrifugation blade.
The recessed edge face and/or the flange surface of the blade of the utility model comprise at least two sections arcs that curvature is different; Therefore changed the concrete structure of existing centrifugation blade blade; Make under the certain situation of rotating speed; Improve the efficient of centrifugation blade effectively, also improved the noiseproof feature of air conditioner, and saved electric power energy.For example, the efficient of this centrifugation blade can improve 15%～20% than centrifugation blade of the prior art, and the noise total value reduces more than 3 decibels, improves the noiseproof feature of air conditioner effectively.
Description of drawings
The accompanying drawing that constitutes the application's a part is used to provide the further understanding to the utility model, and illustrative examples of the utility model and explanation thereof are used to explain the utility model, do not constitute the improper qualification to the utility model.In the accompanying drawings:
Fig. 1 has schematically shown the partial schematic diagram of fan blade of the prior art;
Fig. 2 has schematically shown the stereogram of the fan blade in the utility model;
Fig. 3 has schematically shown the schematic cross-section of the fan blade in the utility model;
Fig. 4 has schematically shown the local enlarged diagram at the B place among Fig. 3;
Fig. 5 has schematically shown the local enlarged diagram at the A place among Fig. 3; And
Fig. 6 has schematically shown the graph of relation of the vane thickness in the utility model with the chord length ratio.
Embodiment
Embodiment to the utility model is elaborated below in conjunction with accompanying drawing, but the multitude of different ways that the utility model can be defined by the claims and cover is implemented.
Fig. 2 shows the stereogram of the centrifugation blade in the utility model, and Fig. 3 shows the schematic cross-section of the centrifugation blade in the utility model.Shown in Fig. 2-3, centrifugation blade 100 comprises blade 101, and further, this blade comprises leading edge face, recessed edge face, rear surface and the flange surface that connects successively, and recessed edge face and/or flange surface comprise at least two sections arcs that curvature is different.Shown in Fig. 2-3, preferably, blade 101 has a plurality of, and a plurality of above-mentioned blades are arranged to annular array, and the number of blade is 20～80; Inscribe diameter of a circle between adjacent two blades 101 reduces (can with reference to figure 4) again along being increased earlier by the direction of leading edge face to rear surface; Further, the inscribe diameter of a circle between adjacent two blades 101 is along being increased a little earlier by the direction of said leading edge face to rear surface and then reducing fast.
One preferred embodiment in; As shown in Figure 4; Form passage between the flange surface of a blade 101 in adjacent two blades 101 and the recessed edge face of another blade 101; This passage is divided into air intake and outlet air end by the line along the mid point of passage bearing of trend along the recessed edge face of the mid point of passage bearing of trend and this another blade 101 of the said flange surface of this blade 101, and wherein, air intake is positioned at a side of the leading edge face of these two adjacent blades 101; Outlet air end is positioned at a side of the rear surface of these two adjacent blades 101; So, this line place inscribe diameter of a circle D2 be 1～1.1 with the ratio range that is positioned at the inscribe diameter of a circle D1 of air intake, preferably 1.01～1.1.Further, the inscribe diameter of a circle D2 that is positioned at this line place is 1～1.35 with the ratio range that is positioned at the inscribe diameter of a circle D3 of outlet air end, preferably 1.1～1.35.Need to prove, therefore in air intake and outlet air end, a plurality of incircles can be arranged respectively because air intake and outlet air end are zones.
One preferred embodiment in; As shown in Figure 5; This blade 101 comprises leading edge face 1, recessed edge face 3, rear surface 2 and the flange surface 4 that connects successively, and recessed edge face 3 comprises that the radius ratio of first section circular arc R 1 and 2, the first sections circular arc R 1 of second section circular arc R and second section circular arc R 2 is 1.1～1.5.Preferably, flange surface 4 comprises the 3rd section circular arc R 3 and four arcs R4, and the radius ratio of the 3rd section circular arc R 3 and four arcs R4 is 0.2～0.8.
One preferred embodiment in, the thickness of the pairing blade 101 of every bit from leading edge face 1 to rear surface on 2 the chord length direction is:
When x≤A,
When A＜x≤1, y=f;
Wherein:
N is the natural number more than or equal to 4;
I is the integer of 0～n;
Y is a thickness;
X is the ratio of the distance and the distance between leading edge face and the rear surface of every bit and leading edge face, i.e. chord length ratio;
0.6≤A≤1；
K
iBe constant;
F is a constant.
Preferably, Fig. 6 shows A and equals at 0.85 o'clock, the graph of relation of the thickness of blade and chord length ratio.Wherein, the longitudinal axis is the thickness of blade, and its unit is mm; Transverse axis is the chord length ratio.Can know that by Fig. 6 after the chord length ratio was greater than 0.85 (being x＞0.85), the thickness of blade no longer changed, and promptly is equal thickness.Preferably, as shown in Figure 6, it is 0.15～0.6 (being x=0.15～0.6) zone that the maximum ga(u)ge of the blade of centrifugation blade is positioned at the chord length ratio, and wherein, the maximum ga(u)ge position of blade is located for the chord length ratio equals 0.3 (being x=0.3).
Further, those skilled in the art can also be with Fig. 5, and 6 combine the design of carrying out blade; For example; As shown in Figure 5, leading edge face 1 has circular arc, and the diameter of this circular arc is approximately equal to the thickness of chord length ratio corresponding blade when being 0.025 (being x=0.025); The thickness of corresponding blade when preferably, the diameter of this circular arc equals the chord length ratio and is 0.025 (being x=0.025); And rear surface 2 equals the circular arc of fan blade external diameter for diameter.
As another aspect of the utility model, the utility model also provides a kind of air conditioner, and it comprises air-conditioning draught fan, and air-conditioning draught fan comprises above-mentioned centrifugation blade.
What need special instruction is; Can make up each other between above-mentioned each preferred implementation or each embodiment; For example; The shape of the centrifugation blade in the utility model both can adopt separately like Fig. 4,5, described in 6 any to be confirmed, can also adopt the mode of any two combinations among Fig. 4,5,6 to confirm, can also adopt the mode among Fig. 4,5,6 to confirm simultaneously.
To sum up can know; The recessed edge face and/or the flange surface of the blade of the utility model comprise at least two sections arcs that curvature is different; Therefore change the concrete structure of existing centrifugation blade blade, made under the certain situation of rotating speed, improved the efficient of centrifugation blade effectively; Also improve the noiseproof feature of air conditioner, and saved electric power energy.For example, the efficient of this centrifugation blade can improve 15%～20% than centrifugation blade of the prior art, and the noise total value reduces more than 3 decibels, improves the noiseproof feature of air conditioner effectively.
The preferred embodiment that the above is merely the utility model is not limited to the utility model, and for a person skilled in the art, the utility model can have various changes and variation.All within the spirit and principle of the utility model, any modification of being done, be equal to replacement, improvement etc., all should be included within the protection domain of the utility model.
Claims (11)
1. a centrifugation blade is characterized in that, comprising:
Blade, said blade comprise leading edge face, recessed edge face, rear surface and the flange surface that connects successively;
Said recessed edge face and/or flange surface comprise at least two sections arcs that curvature is different.
2. centrifugation blade according to claim 1 is characterized in that, said recessed edge face comprises two sections circular arcs, and the radius ratio of said two sections circular arcs of said recessed edge face is 1.1～1.5.
3. centrifugation blade according to claim 1 and 2 is characterized in that, said flange surface comprises two sections circular arcs, and the radius ratio of said two sections circular arcs of said flange surface is 0.2～0.8.
4. centrifugation blade according to claim 1 is characterized in that, the thickness of the pairing said blade of every bit on the chord length direction from said leading edge face to rear surface is:
When x≤A,
When A＜x≤1, y=f;
Wherein, n is the natural number more than or equal to 4; I is the integer of 0～n; Y is said thickness; X is the ratio of the distance and the distance between said leading edge face and the rear surface of said every bit and leading edge face; 0.6≤A≤1; K
iBe constant; F is a constant.
5. centrifugation blade according to claim 4 is characterized in that the maximum ga(u)ge of said blade is positioned at the zone of x=0.15～0.6.
6. centrifugation blade according to claim 4 is characterized in that the maximum ga(u)ge of said blade is positioned at the x=0.3 place.
7. centrifugation blade according to claim 4 is characterized in that, said leading edge mask has circular arc, the thickness of corresponding blade when the diameter of this circular arc equals x=0.025.
8. according to claim 1 or 2 or 4 described centrifugation blades; It is characterized in that; Said blade has a plurality of, and a plurality of said blades are arranged to annular array, and the inscribe diameter of a circle between adjacent two said blades increases earlier along the direction by said leading edge face to rear surface and reduces.
9. centrifugation blade according to claim 8; It is characterized in that; Form passage between the flange surface of a blade in adjacent two said blades and the recessed edge face of another blade; Said passage is divided into air intake and outlet air end by the line of the mid point of the said passage bearing of trend in edge of the recessed edge face of the mid point of the said passage bearing of trend in the edge of the said flange surface of a said blade and said another blade; Wherein, Said air intake is positioned at a side of the leading edge face of said two adjacent blades, and said outlet air end is positioned at a side of the rear surface of said two adjacent blades, and the inscribe diameter of a circle at said line place is 1～1.1 with the ratio range that is positioned at the inscribe diameter of a circle of said air intake.
10. centrifugation blade according to claim 8; It is characterized in that; Form passage between the flange surface of a blade in adjacent two said blades and the recessed edge face of another blade; Said passage is divided into air intake and outlet air end by the line of the mid point of the said passage bearing of trend in edge of the recessed edge face of the mid point of the said passage bearing of trend in the edge of the said flange surface of a said blade and said another blade; Wherein, Said air intake is positioned at a side of the leading edge face of said two adjacent blades, and said outlet air end is positioned at a side of the rear surface of said two adjacent blades, and the inscribe diameter of a circle at said line place is 1～1.35 with the ratio range that is positioned at the inscribe diameter of a circle of said outlet air end.
11. an air conditioner, it comprises air-conditioning draught fan, it is characterized in that, said air-conditioning draught fan comprises according to each described centrifugation blade among the claim 1-10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120267010U CN202140342U (en) | 2011-07-26 | 2011-07-26 | Air conditioner and centrifugal fan blade thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120267010U CN202140342U (en) | 2011-07-26 | 2011-07-26 | Air conditioner and centrifugal fan blade thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202140342U true CN202140342U (en) | 2012-02-08 |
Family
ID=45551400
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120267010U Expired - Lifetime CN202140342U (en) | 2011-07-26 | 2011-07-26 | Air conditioner and centrifugal fan blade thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202140342U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102900694A (en) * | 2011-07-26 | 2013-01-30 | 珠海格力电器股份有限公司 | Air conditioner and centrifugal fan blade thereof |
| CN105020176A (en) * | 2015-08-20 | 2015-11-04 | 珠海格力电器股份有限公司 | Fan blade and centrifugal ventilator |
| CN105386996A (en) * | 2015-11-30 | 2016-03-09 | 青岛海尔空调器有限总公司 | Centrifugal fan used for air conditioner indoor unit and air conditioner indoor unit |
| CN105715563A (en) * | 2014-12-03 | 2016-06-29 | 联想(北京)有限公司 | Fan and electronic equipment |
| CN104728162B (en) * | 2013-12-24 | 2017-04-12 | 珠海格力电器股份有限公司 | Cross-flow fan blade |
| US10018201B2 (en) | 2014-08-22 | 2018-07-10 | Beijing Lenovo Software Ltd. | Fan and mould for making the same |
-
2011
- 2011-07-26 CN CN201120267010U patent/CN202140342U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102900694A (en) * | 2011-07-26 | 2013-01-30 | 珠海格力电器股份有限公司 | Air conditioner and centrifugal fan blade thereof |
| CN102900694B (en) * | 2011-07-26 | 2015-08-12 | 珠海格力电器股份有限公司 | Air conditioner and centrifugal fan blade thereof |
| CN104728162B (en) * | 2013-12-24 | 2017-04-12 | 珠海格力电器股份有限公司 | Cross-flow fan blade |
| US10018201B2 (en) | 2014-08-22 | 2018-07-10 | Beijing Lenovo Software Ltd. | Fan and mould for making the same |
| CN105715563A (en) * | 2014-12-03 | 2016-06-29 | 联想(北京)有限公司 | Fan and electronic equipment |
| CN105020176A (en) * | 2015-08-20 | 2015-11-04 | 珠海格力电器股份有限公司 | Fan blade and centrifugal ventilator |
| CN105386996A (en) * | 2015-11-30 | 2016-03-09 | 青岛海尔空调器有限总公司 | Centrifugal fan used for air conditioner indoor unit and air conditioner indoor unit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20120208 Effective date of abandoning: 20150812 |
|
| RGAV | Abandon patent right to avoid regrant |