CN204628062U - Centrifugal wind wheel, centrifugal blower and air conditioner - Google Patents
Centrifugal wind wheel, centrifugal blower and air conditioner Download PDFInfo
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- CN204628062U CN204628062U CN201520152791.XU CN201520152791U CN204628062U CN 204628062 U CN204628062 U CN 204628062U CN 201520152791 U CN201520152791 U CN 201520152791U CN 204628062 U CN204628062 U CN 204628062U
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Abstract
The utility model discloses a kind of centrifugal wind wheel, centrifugal blower and air conditioner.Described centrifugal wind wheel comprises chassis; Multiple blade, the circumference of described multiple blade shroud around described chassis is spaced apart to be located on described chassis, be connected with described chassis at the bottom of the leaf of described multiple blade, the outer periphery place, leaf top of described multiple blade is arranged with reinforcement annulus, and the leaf top of each described blade is provided with at least one inclined ramp.Low, simple and reasonable according to the centrifugal wind wheel noise of the utility model embodiment.
Description
Technical field
The utility model relates to living electric apparatus field, especially relates to a kind of centrifugal wind wheel, has the centrifugal blower of this centrifugal wind wheel and has the air conditioner of this centrifugal blower.
Background technique
Centrifugal wind wheel because of advantages such as its efficiency are high, air quantity is large always adopt by room conditioning, but its noise problem becomes the bottleneck of its performance boost always.For this reason, a lot of producer studies and provides solution, and the most conventional method increases the diameter of centrifugal wind wheel to reduce rotating speed, thus reduce noise.But this kind of method needs to strengthen fuselage size, and strengthen fuselage size and can increase appearance design difficulty, raise the cost.
Model utility content
The utility model is intended to solve one of technical problem in correlation technique at least to a certain extent.For this reason, the utility model needs to propose a kind of centrifugal wind wheel, and this centrifugal wind wheel noise is low, simple and reasonable.
The utility model also needs to propose a kind of centrifugal blower with above-mentioned centrifugal wind wheel.
The utility model also needs to propose a kind of air conditioner with above-mentioned centrifugal blower.
Centrifugal wind wheel according to the utility model first aspect comprises: chassis; Multiple blade, the circumference of described multiple blade shroud around described chassis is spaced apart to be located on described chassis, be connected with described chassis at the bottom of the leaf of described multiple blade, the outer periphery place, leaf top of described multiple blade is arranged with reinforcement annulus, and the leaf top of each described blade is provided with at least one inclined ramp.
According to the centrifugal impeller of the utility model embodiment, by arranging inclined ramp at Ye Dingchu, thus the formation of leaf top place eddy current can be effectively reduced, and then the noise produced because of flow perturbation can be reduced.In terms of existing technologies, the centrifugal impeller of the utility model embodiment need not reduce noise by increasing diameter, simple and reasonable, easily process, applied widely, and cost is low, can overcome the defect of prior art.
In addition, also following additional technical feature can be had according to centrifugal wind wheel of the present utility model:
According to an embodiment of the present utility model, the leaf top of each described blade is provided with the first inclined ramp, the downward-sloping extension of described first inclined ramp ecto-entad, and described first surface, inclined ramp place is vertical with the side wall surface of corresponding described blade.
According to an embodiment of the present utility model, described first surface, inclined ramp place is flat surface or curved surface.
According to an embodiment of the present utility model, the height of described reinforcement annulus is H, and the height difference between the top of described first inclined ramp and bottom is D, wherein 0.5H≤D≤1.5H.
According to an embodiment of the present utility model, the leaf top of each described blade is provided with the second inclined ramp, the downward-sloping extension of described second inclined ramp ecto-entad, and described second surface, inclined ramp place is non-perpendicular with the side wall surface of corresponding described blade.
According to an embodiment of the present utility model, each described blade is arc shaped blade, and described arc shaped blade has inner concave and outer convex surface, and the contiguous described inner concave of described second inclined ramp is arranged.
According to an embodiment of the present utility model, described first inclined ramp and described second inclined ramp have intersection line, and the width range of described second inclined ramp is 0 ~ 2mm.
According to an embodiment of the present utility model, described reinforcement annulus and described each blade are integrally formed respectively.
According to the centrifugal blower of the utility model second aspect, comprise the centrifugal wind wheel according to the utility model first aspect.Because the structure of the centrifugal wind wheel according to the utility model embodiment is simple, noise is low, therefore low by the noise of centrifugal blower of this centrifugal wind wheel of application, structure simple, it is local to become.
According to the air conditioner of the utility model third aspect, comprise the centrifugal blower according to the utility model second aspect.Because the structure of the centrifugal blower according to the utility model embodiment is simple, noise is low, therefore low by the air conditioner overall noise of this centrifugal wind wheel of application, performance is good.
Additional aspect of the present utility model and advantage will part provide in the following description, and part will become obvious from the following description, or be recognized by practice of the present utility model.
Accompanying drawing explanation
Above-mentioned and/or additional aspect of the present utility model and advantage will become obvious and easy understand from accompanying drawing below combining to the description of embodiment, wherein:
Fig. 1 is the stereogram of the centrifugal wind wheel according to the utility model embodiment;
Fig. 2 is the enlarged view of a-quadrant in Fig. 1;
Fig. 3 is the plan view of the centrifugal wind wheel shown in Fig. 1;
Fig. 4 is the sectional view along B-B line in Fig. 3;
Fig. 5 is the structural representation of a blade of the centrifugal wind wheel shown in Fig. 1.
Reference character:
Centrifugal wind wheel 100;
Chassis 1; Blade 2; Strengthen annulus 3; Electrical machinery cover 4;
First inclined ramp 21; Second inclined ramp 22; Inner concave 23; Outer convex surface 24.
Embodiment
Be described below in detail embodiment of the present utility model, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Being exemplary below by the embodiment be described with reference to the drawings, only for explaining the utility model, and can not being interpreted as restriction of the present utility model.
In description of the present utility model, it will be appreciated that, term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width ", " thickness ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end ", " interior ", " outward ", " clockwise ", orientation or the position relationship of the instruction such as " counterclockwise " are based on orientation shown in the drawings or position relationship, only the utility model and simplified characterization for convenience of description, instead of indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore can not be interpreted as restriction of the present utility model.In addition, term " first ", " second " only for describing object, and can not be interpreted as instruction or hint relative importance or imply the quantity indicating indicated technical characteristics.Thus, be limited with " first ", the feature of " second " can express or impliedly comprise one or more these features.In description of the present utility model, the implication of " multiple " is two or more, unless otherwise expressly limited specifically.
In description of the present utility model, it should be noted that, unless otherwise clearly defined and limited, term " installation ", " being connected ", " connection " should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or connect integratedly; Can be mechanical connection, also can be electrical connection; Can be directly be connected, also indirectly can be connected by intermediary, can be the connection of two element internals or the interaction relationship of two elements.For the ordinary skill in the art, the concrete meaning of above-mentioned term in the utility model can be understood as the case may be.
Below with reference to Fig. 1-Fig. 5, the centrifugal wind wheel 100 according to the utility model embodiment is described.Centrifugal wind wheel 100 according to the utility model embodiment comprises: chassis 1 and multiple blade 2, and multiple blade 2 is located on chassis 1 around the circumference on chassis 1 is spaced apart, and centrifugal wind wheel 100 can also comprise electrical machinery cover 4, and chassis 1 is arranged around the periphery of electrical machinery cover 4.Preferably, chassis 1 and electrical machinery cover 4 are integrally formed.
As shown in Figure 1, be connected at the bottom of the leaf of multiple blade 2 with chassis 1, the outer periphery place, leaf top of multiple blade 2 is arranged with and strengthens annulus 3, and that is, strengthening annulus 3 is annular, and the reinforcement annulus 3 of annular is set in the outer wall on the leaf top of multiple blade 2.
Preferably, the highest point strengthening the roof of annulus 3 and the leaf top of blade 2 is positioned at same plane.Preferably, strengthen annulus 3 and be integrally formed respectively with each blade 2, that is, strengthen annulus 3 and be connected with one between each blade 2, the structural strength of centrifugal wind wheel 100 can be improved thus.Wherein, the leaf top of each blade 2 is provided with at least one inclined ramp, and inclined ramp refers to have angle between this inclined ramp and horizontal plane.
First it should be explained that, in description of the present utility model, " inside and outside " direction is for the rotating center of centrifugal impeller, and the direction of rotating center pointing to centrifugal impeller by radial direction is " introversion ", be " extroversion " by radial direction away from the direction of the rotating center of centrifugal impeller.
It will be appreciated by persons skilled in the art that when centrifugal impeller works, air-flow does work through blade 2 and accelerates, and can beat at reinforcement annulus 3 inwall, form larger eddy current, thus can produce larger noise near the air-flow strengthening annulus 3 place after accelerating.
According to the centrifugal impeller of the utility model embodiment, by arranging inclined ramp at Ye Dingchu, thus the formation of leaf top place eddy current can be effectively reduced, and then the noise produced because of flow perturbation can be reduced.In terms of existing technologies, the centrifugal impeller of the utility model embodiment need not reduce noise by increasing diameter, simple and reasonable, easily process, applied widely, and cost is low, can overcome the defect of prior art.
As shown in Figure 2 and Figure 5, in an example of the present utility model, the leaf top of each blade 2 is provided with the downward-sloping extension of the first inclined ramp 21, first inclined ramp 21 ecto-entad, and the first surface, inclined ramp 21 place is vertical with the side wall surface of corresponding blade 2.
First inclined ramp 21 is formed in the top of blade 2, and in other words, the first inclined ramp 21 can be regarded as the surface downward-sloping for the top ecto-entad of blade 2 part of pruning formed.By arranging the first inclined ramp 21 of downward-sloping extension from inside to outside at the top of blade 2, the formation of the eddy current at leaf top place can be effectively reduced, effectively can reduce noise.
Alternatively, the first surface, inclined ramp 21 place can be flat surface, or the first surface, inclined ramp 21 place can be curved surface, and such as, in example as shown in Figure 2 and Figure 5, the first inclined ramp 21 is arc shaped surface protruding upward.
Further, as shown in Figure 4, the height strengthening annulus 3 is H, and the height difference between the top of the first inclined ramp 21 and bottom is D, wherein 0.5H≤D≤1.5H.Wherein, " the height difference D between the top of the first inclined ramp 21 and bottom " refers to the perpendicular distance between the first inclined ramp 21 peak in the vertical direction and minimum point.By making D meet above-mentioned relation formula, thus not only can reduce noise, and the structural strength of each blade 2 of centrifugal impeller can be ensured, ensure stability during centrifugal impeller work.
As shown in Figure 2 and Figure 5, in another example of the present utility model, the leaf top of each blade 2 is provided with the second inclined ramp 22, the downward-sloping extension of second inclined ramp 22 ecto-entad, second surface, inclined ramp 22 place is non-perpendicular with the side wall surface of corresponding blade 2, that is, there is between the second surface, inclined ramp 22 place and the side wall surface of corresponding blade 2 angle of non-90 degree.
Particularly, as shown in Figure 5, each blade 2 is arc shaped blade, and arc shaped blade has inner concave 23 and outer convex surface 24, second inclined ramp 22 can be close to inner concave 23 and arrange.It is to be understood that when centrifugal impeller rotates, inner concave 23 is the windward side of blade 2, by being arranged by contiguous for the second inclined ramp 22 inner concave 23, thus effectively can reduce stream swirl, and then effectively can reduce noise.
In the 3rd embodiment of the present utility model, the leaf top place of each blade 2 arranges the first inclined ramp 21 and the second inclined ramp 22 simultaneously, and noise reduction is more obvious thus.
Further, as Fig. 2 first inclined ramp 21 and the second inclined ramp 22 have intersection line L1, the scope of the width W of the second inclined ramp 22 is 0 ~ 2mm, that is, in example as shown in Figure 2, the intersection L2 of the second inclined ramp 22 and blade 2 inner concave 23 and the distance range between the second inclined ramp 22 and the intersection line L1 of the first inclined ramp 21 are 0 ~ 2mm.The rectified action better effects if of blade 2 pairs of air-flows can be made thus.
The utility model also proposed a kind of centrifugal blower, comprises the centrifugal wind wheel 100 according to above-described embodiment.Because the structure of the centrifugal wind wheel 100 according to the utility model embodiment is simple, noise is low, therefore low by the noise of centrifugal blower of this centrifugal wind wheel 100 of application, structure simple, it is local to become.
The utility model also proposed a kind of air conditioner, comprises the centrifugal blower according to above-described embodiment.Because the structure of the centrifugal blower according to the utility model embodiment is simple, noise is low, therefore low by the air conditioner overall noise of this centrifugal blower of application, performance is good.
Be all known according to other configuration examples of air conditioner of the utility model embodiment for those of ordinary skills as refrigeration part, electric-controlled parts etc. and operation, no longer describe in detail here.
In the description of this specification, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " illustrative examples ", " example ", " concrete example " or " some examples " etc. means to describe in conjunction with this embodiment or example are contained at least one embodiment of the present utility model or example.In this manual, identical embodiment or example are not necessarily referred to the schematic representation of above-mentioned term.And the specific features of description, structure, material or feature can combine in an appropriate manner in any one or more embodiment or example.
Although illustrate and described embodiment of the present utility model, those having ordinary skill in the art will appreciate that: can carry out multiple change, amendment, replacement and modification to these embodiments when not departing from principle of the present utility model and aim, scope of the present utility model is by claim and equivalents thereof.
Claims (10)
1. a centrifugal wind wheel, is characterized in that, comprising:
Chassis;
Multiple blade, the circumference of described multiple blade shroud around described chassis is spaced apart to be located on described chassis, be connected with described chassis at the bottom of the leaf of described multiple blade, the outer periphery place, leaf top of described multiple blade is arranged with reinforcement annulus, and the leaf top of each described blade is provided with at least one inclined ramp.
2. centrifugal wind wheel according to claim 1, it is characterized in that, the leaf top of each described blade is provided with the first inclined ramp, the downward-sloping extension of described first inclined ramp ecto-entad, and described first surface, inclined ramp place is vertical with the side wall surface of corresponding described blade.
3. centrifugal wind wheel according to claim 2, is characterized in that, described first surface, inclined ramp place is flat surface or curved surface.
4. centrifugal wind wheel according to claim 2, is characterized in that, the height of described reinforcement annulus is H, and the height difference between the top of described first inclined ramp and bottom is D, wherein 0.5H≤D≤1.5H.
5. the centrifugal wind wheel according to any one of claim 2-4, it is characterized in that, the leaf top of each described blade is provided with the second inclined ramp, the downward-sloping extension of described second inclined ramp ecto-entad, and described second surface, inclined ramp place is non-perpendicular with the side wall surface of corresponding described blade.
6. centrifugal wind wheel according to claim 5, is characterized in that, each described blade is arc shaped blade, and described arc shaped blade has inner concave and outer convex surface, and the contiguous described inner concave of described second inclined ramp is arranged.
7. centrifugal wind wheel according to claim 5, is characterized in that, described first inclined ramp and described second inclined ramp have intersection line, and the width range of described second inclined ramp is 0 ~ 2mm.
8. centrifugal wind wheel according to claim 1, is characterized in that, described reinforcement annulus and described each blade are integrally formed respectively.
9. a centrifugal blower, is characterized in that, comprises the centrifugal wind wheel according to any one of claim 1-8.
10. an air conditioner, is characterized in that, comprises centrifugal blower according to claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520152791.XU CN204628062U (en) | 2015-03-17 | 2015-03-17 | Centrifugal wind wheel, centrifugal blower and air conditioner |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520152791.XU CN204628062U (en) | 2015-03-17 | 2015-03-17 | Centrifugal wind wheel, centrifugal blower and air conditioner |
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| CN204628062U true CN204628062U (en) | 2015-09-09 |
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| CN201520152791.XU Active CN204628062U (en) | 2015-03-17 | 2015-03-17 | Centrifugal wind wheel, centrifugal blower and air conditioner |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108019363A (en) * | 2018-01-11 | 2018-05-11 | 广东美的厨房电器制造有限公司 | Blower fan apparatus and smoke machine |
| CN109630462A (en) * | 2018-11-24 | 2019-04-16 | 廖兆泉 | A kind of wind wheel structure |
| CN110206755A (en) * | 2018-02-28 | 2019-09-06 | 日本电产株式会社 | Centrifugal fan and cooling device comprising the centrifugal fan |
-
2015
- 2015-03-17 CN CN201520152791.XU patent/CN204628062U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108019363A (en) * | 2018-01-11 | 2018-05-11 | 广东美的厨房电器制造有限公司 | Blower fan apparatus and smoke machine |
| CN108019363B (en) * | 2018-01-11 | 2024-02-20 | 广东美的厨房电器制造有限公司 | Fan device and smoke machine |
| CN110206755A (en) * | 2018-02-28 | 2019-09-06 | 日本电产株式会社 | Centrifugal fan and cooling device comprising the centrifugal fan |
| CN110206755B (en) * | 2018-02-28 | 2021-10-12 | 日本电产株式会社 | Centrifugal fan and cooling device comprising same |
| CN109630462A (en) * | 2018-11-24 | 2019-04-16 | 廖兆泉 | A kind of wind wheel structure |
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