CN109578330A - Centrifugal wind wheel and air conditioner - Google Patents
Centrifugal wind wheel and air conditioner Download PDFInfo
- Publication number
- CN109578330A CN109578330A CN201910099695.6A CN201910099695A CN109578330A CN 109578330 A CN109578330 A CN 109578330A CN 201910099695 A CN201910099695 A CN 201910099695A CN 109578330 A CN109578330 A CN 109578330A
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- Prior art keywords
- wind wheel
- rib
- centrifugal wind
- central spindle
- bottom plate
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- 238000005119 centrifugation Methods 0.000 claims 1
- 230000017525 heat dissipation Effects 0.000 abstract description 7
- 230000000694 effects Effects 0.000 abstract description 6
- 230000009467 reduction Effects 0.000 abstract description 3
- 238000001228 spectrum Methods 0.000 description 9
- 230000004308 accommodation Effects 0.000 description 6
- 239000012530 fluid Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 235000019628 coolness Nutrition 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/26—Rotors specially for elastic fluids
- F04D29/28—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps
- F04D29/281—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps for fans or blowers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/58—Cooling; Heating; Diminishing heat transfer
- F04D29/5806—Cooling the drive system
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
- F04D29/666—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps by means of rotor construction or layout, e.g. unequal distribution of blades or vanes
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
- F04D29/668—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps damping or preventing mechanical vibrations
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Wind Motors (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses a kind of centrifugal wind wheel and air conditioners.Centrifugal wind wheel includes central spindle, bottom plate, multiple blades and multiple ribs.Bottom plate is coated at central spindle, and radial direction of the bottom plate with central spindle along central spindle is spaced apart, and blade is connect with bottom plate, and multiple blades are spaced apart along the circumferential direction of central spindle, and one end of rib is connect with bottom plate, and the other end of rib is connect with central spindle, and the number of rib is 13-60.The quantity of rib by connecting bottom plate with central spindle using rib, and is set to 13-26 by centrifugal wind wheel according to the present invention, it is possible thereby to improve sound quality, reduces the exciting noise that rib and electric motor mounting structure generate.In addition, by the quantity for changing rib the heat dissipation effect of motor can also be improved, to achieve the purpose that electric motor temperature reduction.
Description
Technical field
The present invention relates to air-conditioning technique fields, specifically, more particularly to a kind of centrifugal wind wheel and air conditioner.
Background technique
Centrifugal wind wheel is by stiffening ring (or upper cover plate) on central axis or axis hole, blade and interconnecting piece between the two, blade
Composition.In order to efficiently use space, interconnecting piece forms bell-shaped, and bell-shaped limits accommodation space, the electricity of driving wind wheel rotation
Machine is placed in accommodation space.Open-celled structure and electric motor mounting structure of the wheel hub for heat dissipation generate frequency multiplication exciting, to generate
Abnormal sound increases noise.
Summary of the invention
The present invention is directed at least solve one of the technical problems existing in the prior art.For this purpose, the present invention propose it is a kind of from
Heart wind wheel, the centrifugal wind wheel have the advantages that structure is simple, wind noise is small.
The present invention also proposes that a kind of air conditioner, the air conditioner have centrifugal wind wheel as described above.
Centrifugal wind wheel according to an embodiment of the present invention, including central spindle, bottom plate, multiple blades and multiple ribs.Wherein, bottom plate
It is coated at central spindle, radial direction of the bottom plate with central spindle along central spindle is spaced apart, and blade is connect with bottom plate, week of multiple blades along central spindle
It is spaced apart to direction, one end of rib is connect with bottom plate, and the other end of rib is connect with central spindle, and the number of rib is 13-60.
Centrifugal wind wheel according to an embodiment of the present invention, by being connected bottom plate with central spindle using rib, and by the number of rib
Amount is set to 13-26, it is possible thereby to improve sound quality, reduces the exciting noise that rib and electric motor mounting structure generate.In addition, logical
The quantity for changing rib is crossed, the heat dissipation effect of motor can also be improved, achieved the purpose that electric motor temperature reduction.
In some embodiments, the bottom plate is annular in shape.
In some embodiments, the bottom plate is set to one end of the blade, and centrifugal wind wheel further includes stiffening ring, described to add
Axis direction of the strong circle with the bottom plate along the central spindle is spaced apart, and the stiffening ring is set to the other end of the blade.
In some embodiments, the diameter of the radial outside of the stiffening ring is less than or equal to 250mm.
In some embodiments, the diameter of the radial outside of the bottom plate is less than the straight of the radial outside of the stiffening ring
Diameter.
In some embodiments, the axis of the diameter of the radial outside of the stiffening ring and the centrifugal wind wheel in the central spindle
The ratio of height on line direction is less than or equal to 0.5.
In some embodiments, the edge of the radially inner side positioned at the central spindle of the blade is located on a curved surface, should
Curved surface is cylindrical surface, and the line for the end of the rib connecting with the bottom plate is located in a circle, which is the first circle,
First diameter of a circle is less than the diameter on the cylindrical surface, and first diameter of a circle is greater than 0.8 times of the cylindrical surface
Diameter.
In some embodiments, the line for the end of the rib connecting with the central spindle is located in another circle, should
It is another round on the second circle, second diameter of a circle is more than or equal to 50mm.
In some embodiments, second diameter of a circle is greater than 0.5 times of first diameter of a circle.
In some embodiments, the distance between two described ribs of arbitrary neighborhood are 2-40mm.
In some embodiments, the width in the central spindle circumferential direction of the rib is 2-10mm.
In some embodiments, the rib with a thickness of 2-4mm.
In some embodiments, on the axis direction of the central spindle, one end of the rib to the another of the rib
Vertical range between end is 20-100mm.
In some embodiments, on the axis direction of the central spindle, one end of the rib to the another of the rib
The ratio of vertical range and height of the centrifugal wind wheel on the axis direction of the central spindle between end is 0.2-0.8.
In some embodiments, the blade is spaced apart with the rib, and any point is to the rib on the blade
Minimum range be less than or equal to 20mm.
In some embodiments, the rib includes sequentially connected first segment, second segment and third section, the first segment
It is connect with the bottom plate, on the first segment to the direction of the third section, radial direction of the first segment towards the central spindle
Angle between the edge of the radially inner side of offset inboard, the first segment and the blade is 2 ° -20 °.
In some embodiments, on the first segment to the direction of the third section, the second segment is towards the axis
The radially inner side of core deviates, and the angle between the edge of the radially inner side of the second segment and the blade is 15 ° -60 °.
In some embodiments, there is the first fillet between the first segment and the bottom plate, the half of first fillet
Diameter is less than 10mm, and the radius of second fillet is less than 10mm, and the radius of the third fillet is less than 10mm.
In some embodiments, the second segment extends along circular arc line or the second segment is along linear extension.
Air conditioner according to an embodiment of the present invention, including shell and centrifugal wind wheel as described above, the centrifugal wind wheel are set
In in the shell.
Air conditioner according to an embodiment of the present invention, by being connected bottom plate with central spindle using rib, and by the quantity of rib
13-26 are set to, it is possible thereby to improve sound quality, reduces the exciting noise that rib and electric motor mounting structure generate.In addition, passing through
The quantity for changing rib, can also improve the heat dissipation effect of motor, to achieve the purpose that electric motor temperature reduction.
Detailed description of the invention
Above-mentioned and/or additional aspect of the invention and advantage will become from the description of the embodiment in conjunction with the following figures
Obviously and it is readily appreciated that, in which:
Fig. 1 is the perspective view of centrifugal wind wheel according to an embodiment of the present invention；
Fig. 2 is the main view of centrifugal wind wheel according to an embodiment of the present invention；
Fig. 3 is in Fig. 2 along the schematic cross-sectional view in the direction A-A；
Fig. 4 is in Fig. 2 along the schematic cross-sectional view in the direction B-B；
Fig. 5 is in Fig. 2 along the sectional view in the direction B-B；
Fig. 6 is the enlarged diagram in Fig. 2 at C；
Fig. 7 is the mounting structure schematic diagram of centrifugal wind wheel according to an embodiment of the present invention；
Fig. 8-Figure 10 is the noise spectrum of centrifugal wind wheel in the prior art；
Figure 11-Figure 13 is the noise spectrum of centrifugal wind wheel according to an embodiment of the present invention.
Appended drawing reference:
Centrifugal wind wheel 100,
Central spindle 110,
Bottom plate 120,
Blade 130,
Rib 140, first segment 141, second segment 142, third section 143,
Stiffening ring 150；
Motor 210, bracket 220, motor cabinet 230.
Specific embodiment
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end
Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to attached
The embodiment of figure description is exemplary, and for explaining only the invention, and is not considered as limiting the invention.
In the description of the present invention, it is to be understood that, term " center ", " width ", " thickness ", "upper", "lower", "bottom"
The orientation or positional relationship of the instructions such as "inner", "outside", " radial direction ", " circumferential direction " is to be based on the orientation or positional relationship shown in the drawings,
Be merely for convenience of description of the present invention and simplification of the description, rather than the device or element of indication or suggestion meaning must have it is specific
Orientation, be constructed and operated in a specific orientation, therefore be not considered as limiting the invention.In addition, define " first ",
The feature of " second " can explicitly or implicitly include one or more of the features.In the description of the present invention, unless
It is otherwise noted, the meaning of " plurality " is two or more.
Centrifugal wind wheel 100 according to an embodiment of the present invention is described below with reference to Fig. 1-Fig. 7.
As shown in Figure 1, centrifugal wind wheel 100 according to an embodiment of the present invention, including central spindle 110, bottom plate 120, multiple blades
130 and multiple ribs 140.
Specifically, bottom plate 120 is annular in shape, and bottom plate 120 is coated at central spindle 110, and bottom plate 120 and central spindle 110 are along central spindle
110 radial direction is spaced apart.Blade 130 is connect with bottom plate 120, and multiple blades 130 are along the circumferential direction interval of central spindle 110 point
One end of cloth, rib 140 is connect with bottom plate 120, and the other end of rib 140 is connect with central spindle 110, and the number of rib 140 is 13-
60, that is to say, that the quantity of rib 140 is N, wherein 13≤N≤60.It is understood that N can be between 13 to 60
Any one integer, such as N can be 15,18,20,30,50 or 55 etc..It should be noted that being constructed using multiple ribs 140
The edge of the wheel hub structure of connecting bottom board 120 and central spindle 110, radially inner side of multiple ribs 140 along central spindle 110 constructs receiving
Space, to accommodate motor 210, the power output end of motor 210 is connect with central spindle 110, to drive centrifugal wind wheel 100 to rotate.
Centrifugal wind wheel 100 according to an embodiment of the present invention, by the way that bottom plate 120 and central spindle 110 are connected using rib 140,
And the quantity of rib 140 is set to 13-26, it is possible thereby to improve sound quality, reduce rib 140 and 210 mounting structure of motor
The exciting noise of generation.In addition, by the quantity for changing rib 140 heat dissipation effect of motor 210 can also be improved, to reach
The purpose to cool down to motor 210.
As shown in Figure 3, Figure 4, according to some embodiments of the present invention, bottom plate 120 is set to one end of blade 130.Thus just
It links together in by multiple blades 130.Further, as shown in Figure 1 and Figure 2, centrifugal wind wheel 100 can also include stiffening ring
150, axis direction of the stiffening ring 150 with bottom plate along central spindle 110 is spaced apart, and stiffening ring 150 is set to the other end of blade 130.It can
With understanding, stiffening ring 150 is spaced apart with bottom plate 120, and blade 130 is connected between bottom plate 120 and stiffening ring 150, i.e. leaf
One end of piece 130 is connect with bottom plate 120, and the other end of blade 130 is connect with stiffening ring 150.It is possible thereby to promote centrifugal wind wheel
100 structural strength.
According to some embodiments of the present invention, the diameter of the radial outside of stiffening ring 150 is less than or equal to 250mm.For example, such as
Shown in Fig. 3, the diameter of the radial outside of stiffening ring 150 is DO, wherein DO≤250mm.In some embodiments, bottom plate 120
The diameter of radial outside is less than the diameter of the radial outside of stiffening ring 150.For example, as shown in figure 3, the radial outside of bottom plate 120
Diameter be DI, the diameter of the radial outside of stiffening ring 150 is DO, wherein DI < DO.
In some embodiments, the axis of the diameter of the radial outside of stiffening ring 150 and centrifugal wind wheel 100 in central spindle 110
The ratio of height on direction is less than or equal to 0.5.For example, as shown in figure 3, the diameter of the radial outside of stiffening ring 150 be DO, from
Height of the heart wind wheel 100 on 110 direction of central spindle is H, wherein DO/H≤0.5.By experimental verification, in some embodiments,
As DO≤250mm, DI < DO and DO/H≤0.5, the air output of centrifugal wind wheel 100 is big, air-flow is uniform and wind noise is small.
According to some embodiments of the present invention, the edge of the radially inner side positioned at central spindle 110 of blade 130 is located at cylindrical surface
On.It should be noted that cylinder is that straight line along one determines oriented parallel and move to be formed by curved surface, i.e., dynamic straight line is along one
Determine oriented parallel movement and be formed by curved surface, dynamic straight line is known as the straight edge line of cylinder, determines the directrix that curve is known as cylinder, works as directrix
It is that cylinder obtained by bowlder is known as cylindrical surface.The end of rib 140 connecting with bottom plate 120 is located on the first circle, and here " first
Circle " refers to a circular curve, and the one end connecting on rib 140 with bottom plate 120 is located on the circular curve.Wherein, the first circle
Diameter be less than the diameter on cylindrical surface, and the first diameter of a circle is greater than the diameter on 0.8 times of cylindrical surface.For example, as shown in fig. 6,
First diameter of a circle is d1, and the diameter on cylindrical surface is di, wherein 0.8di < d1 < di.
In some embodiments, the end of rib 140 connecting with central spindle 110 is located on the second circle, the second diameter of a circle
More than or equal to 50mm.It should be noted that " the second circle " refers to a circular curve, one connect on rib 140 with central spindle 110
End is located on the circular curve.For example, as shown in fig. 6, the second diameter of a circle is d2, wherein d2 >=50mm.In some embodiments
In, the end of rib 140 connecting with central spindle 110 is located on the second circle, and the second diameter of a circle is greater than the straight of 0.5 times of the first circle
Diameter.It should be noted that " the second circle " refers to a circular curve, the one end connecting on rib 140 with central spindle 110 is located at the circle
On shape curve.For example, the second diameter of a circle is d2, wherein d2 > 0.5d1 as shown in fig. 6, the first diameter of a circle is d1.
According to some embodiments of the present invention, the width in 110 circumferential direction of central spindle of rib 140 is 2-10mm.Example
Such as, as shown in fig. 6, the width in 110 circumferential direction of central spindle of rib 140 is B, wherein 2≤B≤10mm.In some implementations
Example in, rib 140 with a thickness of 2-4mm.For example, as shown in figs. 3 and 5, rib 140 with a thickness of δ, wherein 2≤δ≤4mm.
In some embodiments, the distance between two ribs 140 of arbitrary neighborhood can be 2-40mm.
According to some embodiments of the present invention, on the axis direction of central spindle 110, one end of rib 140 to rib 140
Vertical range between the other end is 20-100mm.For example, as shown in figs. 3 and 5, on the axis direction of central spindle 110, rib
140 one end to the vertical range between the other end of rib 140 be h, wherein 20≤h≤100mm.In some embodiments,
On the axis direction of central spindle 110, one end of rib 140 to the vertical range and centrifugal wind wheel between the other end of rib 140
The ratio of 100 height on the axis direction of central spindle 110 is 0.2-0.8.It is understood that in the axis side of central spindle 110
Upwards, one end of rib 140 to rib 140 the other end distance be h；Centrifugal wind wheel 100 is in 110 direction of central spindle (central spindle 110
Axis direction) on height be H, wherein 0.2≤h/H≤0.8.
According to some embodiments of the present invention, blade 130 is spaced apart with rib 140, and any point is to rib on blade 130
140 minimum range is less than or equal to 20mm.In other words, minimum range A of any point to rib 140 on blade 130, wherein A
≤20mm.It should be noted that " minimum range of any point to rib 140 on blade 130 " here is it is to be understood that leaf
It there are the distance of point a M, point M to rib 140 is N1 on piece 130, the distance of remaining point to rib 140 is N2 on blade 130,
Middle N1 < N2, N1 here be on blade 130 any point to the minimum range A of rib 140.
As shown in figs. 3 and 5, according to some embodiments of the present invention, rib 140 may include sequentially connected first segment
141, second segment 142 and third section 143, first segment 141 are connect with bottom plate 120.The direction of third section 143 is arrived in first segment 141
On, the radially inner side of first segment 141 towards central spindle 110 deviates, between the edge of the radially inner side of first segment 141 and blade 130
Angle be 2 ° -20 °.For example, the folder as shown in Fig. 3, Fig. 7, between the edge of the radially inner side of first segment 141 and blade 130
Angle a, wherein 2 °≤a≤20 °.
As shown in figure 5, in some embodiments, on first segment 141 to the direction of third section 143,142 direction of second segment
The radially inner side of central spindle 110 deviates, and the angle between the edge of the radially inner side of second segment 142 and blade 130 is 15 ° -60 °.
For example, as shown in figure 3, angle b between the edge of the radially inner side of second segment 142 and blade 130, wherein 16 °≤b≤
60°。
In some embodiments, as shown in figure 5, having the first fillet, the first fillet between first segment 141 and bottom plate 120
Radius r1 be less than 10mm；There is the second fillet, the radius r2 of the second fillet is less than between first segment 141 and second segment 142
10mm；There is third fillet, the radius r3 of third fillet is less than 10mm between third section 143 and second segment 142.Rib as a result,
140 can form the maximum accommodation space to motor 210, and fluid flow and air quantity influence are small, and manufacture processing performance is good.
As shown in figure 5, according to some embodiments of the present invention, second segment 142 can extend along linear type, it can also be along circle
Arc line type extends.When second segment 142 extends along circular arc line style, the radius of second segment 142 can be R.Rib 140 can as a result,
To form the maximum accommodation space to motor 210, and fluid flow and air quantity influence are small, and manufacture processing performance is good.
Centrifugal wind wheel 100 according to an embodiment of the present invention is described in detail referring to Fig. 1-Figure 13.It is worth understanding, under
Description is stated to be merely illustrative, rather than to concrete restriction of the invention.
As shown in Figure 1, centrifugal wind wheel 100 includes central spindle 110, bottom plate 120, multiple blades 130, stiffening ring 150 and multiple
Rib 140.Wherein, rib 140 has 43.Bottom plate 120 is annular in shape, and bottom plate 120 is coated at central spindle 110, bottom plate 120 and central spindle
110 along central spindle 110 radial direction be spaced apart, axis direction of the stiffening ring 150 with bottom plate along central spindle 110 is spaced apart, stiffening ring
150 are set to the other end of blade 130.
As shown in figs. 3 and 5, the edge of the radially inner side positioned at central spindle 110 of blade 130 is located on cylindrical surface, rib
140 end connecting with bottom plate 120 is located on the first circle, and the end of rib 140 connecting with central spindle 110 is located at the second circle
On.Rib 140 may include sequentially connected first segment 141, second segment 142 and third section 143, first segment 141 and bottom plate 120
Connection.On first segment 141 to the direction of third section 143, the radially inner side of first segment 141 towards central spindle 110 is deviated.First segment
Between 141 and bottom plate 120 have the first fillet, between first segment 141 and second segment 142 have the second fillet, third section 143 with
There is third fillet between second segment 142.Second segment 142 extends along circular arc line style.
Size on each position of centrifugal wind wheel 100 is as follows:
The diameter of the radial outside of stiffening ring 150 is DO, wherein DO≤250mm；
The diameter of the radial outside of bottom plate 120 is DI, wherein DI < DO；
Height of the centrifugal wind wheel 100 on 110 direction of central spindle is H, wherein DO/H≤0.5；
First diameter of a circle is d1, and the diameter on cylindrical surface is di, wherein 0.8di < d1 < di；
Second diameter of a circle is d2, wherein d2 >=50mm, d2 > 0.5d1；
The width in 110 circumferential direction of central spindle of rib 140 is B, wherein 2≤B≤10mm；
Rib 140 with a thickness of δ, wherein 2≤δ≤4mm；
On the axis direction of central spindle 110, one end of rib 140 is to the vertical range between the other end of rib 140
H, wherein 20≤h≤100mm；
Height of the centrifugal wind wheel 100 on the axis direction of central spindle 110 is H, i.e., 100 complete machine height of centrifugal wind wheel is H,
In, 0.2≤h/H≤0.8；
Minimum range A of any point to rib 140 on blade 130, wherein A≤20mm；
Angle a between the edge of the radially inner side of first segment 141 and blade 130, wherein 2 °≤a≤20 °；
Angle b between the edge of the radially inner side of second segment 142 and blade 130, wherein 16 °≤b≤60 °；
The radius r1 of first fillet is less than 10mm；
The radius r2 of second fillet is less than 10mm；
The radius r3 of third fillet is less than 10mm.
The noise spectrum of the centrifugal wind wheel 100 of centrifugal wind wheel and the present embodiment in the prior art is compared such as Fig. 8-Figure 13 institute
Show, wherein Fig. 8-Figure 10 is the noise spectrum of centrifugal wind wheel in the prior art；Figure 11-Figure 13 is the centrifugal wind wheel of this implementation
100 noise spectrum.It should be noted that comparison prior art centrifugal wind wheel and the present embodiment centrifugal wind wheel 100 all according to GB
T7725-2004 " room air conditioner " method is detected, and obtains corresponding noise spectrum, and wherein noise incremental quantity should use I
Precise order sound level meter more than type or I type.
Specifically, Fig. 8 and Figure 11 is obtained under conditions of 1200/60=20Hz, 20*5=100Hz, 20*5*3=300Hz
The frequency spectrum arrived, the fundamental frequency that wherein 100Hz is power supply 50Hz generate.Position shown in obvious Fig. 8 centre circle produces noise bump, i.e.,
Prominent peak value is generated in the place of 100Hz, 300Hz.
Fig. 9 and Figure 12 is the condition in 1100/60=18.33Hz, 18.33*5=91.67Hz, 18.33*5*3=275Hz
Under obtained frequency spectrum, the fundamental frequency that wherein 100Hz is power supply 50Hz generates.It is prominent that position shown in obvious Fig. 9 centre circle produces noise
Point generates prominent peak value in the place of 92Hz., 100Hz, 275.9Hz.
Figure 10 and Figure 13 is in 1000/60=16.67Hz；16.67*5=83.33Hz；16.67*5*3=250Hz item
The frequency spectrum obtained under part, the fundamental frequency that wherein 100Hz is power supply 50Hz generate.Position shown in obvious Figure 10 centre circle produces noise
Bump generates prominent peak value in the place of 83.Hz., 100Hz, 51.5Hz.
It should be noted that not only can by the size as above of the quantity, improvement centrifugal wind wheel 100 of improving rib 140
To improve the outlet air sound quality of centrifugal wind wheel 100, the exciting noise that rib 140 and 210 mounting structure of motor generate is reduced, it can be with
The heat dissipation effect of motor 210 is improved, to achieve the purpose that cool down to motor 210.In addition, the shape of rib 140 can construct
To the maximum accommodation space of motor 210, and fluid flow and air quantity influence are small, and the general thickness of centrifugal wind wheel 100 is small, manufacture
Processing performance is good.
Air conditioner according to an embodiment of the present invention, including shell and centrifugal wind wheel as described above 100, the centrifugal wind wheel
100 are disposed in the housing.
Air conditioner according to an embodiment of the present invention, by being connected bottom plate 120 and central spindle 110 using rib 140, and by muscle
The quantity of item 140 is set to 13-26, it is possible thereby to improve sound quality, reduces what rib 140 was generated with 210 mounting structure of motor
Exciting noise.In addition, by the quantity for changing rib 140 heat dissipation effect of motor 210 can also be improved, to reach to motor
The purpose of 210 coolings.
In some embodiments, as shown in fig. 7, air conditioner may include bracket 220, motor 210, motor cabinet 230, wherein
Bracket 220 is located at the side of the axis direction of centrifugal wind wheel 100, and bracket 220 is connect with centrifugal wind wheel 100.Motor 210 moves
Power output end is connect with the central spindle 110 of centrifugal wind wheel 100, and motor 210 is located at the accommodation space that multiple ribs 140 limit
It is interior.Motor cabinet 230 is coated at motor 210, and motor cabinet 230 is between motor 210 and rib 140.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " illustrative examples ",
The description of " example ", " specific example " or " some examples " etc. means specific features described in conjunction with this embodiment or example, knot
Structure, material or feature are included at least one embodiment or example of the invention.In the present specification, to above-mentioned term
Schematic representation may not refer to the same embodiment or example.Moreover, specific features, structure, material or the spy of description
Point can be combined in any suitable manner in any one or more of the embodiments or examples.
Although an embodiment of the present invention has been shown and described, it will be understood by those skilled in the art that: not
A variety of change, modification, replacement and modification can be carried out to these embodiments in the case where being detached from the principle of the present invention and objective, this
The range of invention is defined by the claims and their equivalents.
Claims (20)
1. a kind of centrifugal wind wheel characterized by comprising
Central spindle；
Bottom plate, the bottom plate are coated at the central spindle, and radial direction of the bottom plate with the central spindle along the central spindle is spaced apart；
Multiple blades, the blade are connect with the bottom plate, and multiple blades are spaced apart along the circumferential direction of the central spindle；
Multiple ribs, one end of the rib are connect with the bottom plate, and the other end of the rib is connect with the central spindle, described
The number of rib is 13-60.
2. centrifugal wind wheel according to claim 1, which is characterized in that the bottom plate is annular in shape.
3. centrifugal wind wheel according to claim 2, which is characterized in that the bottom plate is set to one end of the blade,
The centrifugal wind wheel further includes stiffening ring, and axis direction of the stiffening ring with the bottom plate along the central spindle is spaced apart,
The stiffening ring is set to the other end of the blade.
4. centrifugal wind wheel according to claim 3, which is characterized in that the diameter of the radial outside of the stiffening ring be less than etc.
In 250mm.
5. centrifugal wind wheel according to claim 4, which is characterized in that the diameter of the radial outside of the bottom plate is less than described
The diameter of the radial outside of stiffening ring.
6. centrifugal wind wheel according to claim 4, which is characterized in that the diameter of the radial outside of the stiffening ring with it is described
The ratio of height of the centrifugal wind wheel on the axis direction of the central spindle is less than or equal to 0.5.
7. centrifugal wind wheel according to claim 1, which is characterized in that the radially inner side positioned at the central spindle of the blade
Edge be located on a curved surface, the curved surface be cylindrical surface,
The line for the end of the rib connecting with the bottom plate is located in a circle, which is first round, described first
Diameter of a circle is less than the diameter on the cylindrical surface, and the diameter on the cylindrical surface of first diameter of a circle greater than 0.8 times.
8. centrifugal wind wheel according to claim 7, which is characterized in that the end of the rib being connect with the central spindle
Line is located in another circle, this is another round on the second circle, second diameter of a circle is more than or equal to 50mm.
9. centrifugal wind wheel according to claim 8, which is characterized in that second diameter of a circle is described greater than 0.5 times
First diameter of a circle.
10. centrifugal wind wheel according to claim 1, which is characterized in that between two ribs of arbitrary neighborhood away from
From for 2-40mm.
11. centrifugal wind wheel according to claim 1, which is characterized in that the rib in the central spindle circumferential direction
Width be 2-10mm.
12. centrifugal wind wheel according to claim 1, which is characterized in that the rib with a thickness of 2-4mm.
13. centrifugal wind wheel according to claim 1, which is characterized in that on the axis direction of the central spindle, the rib
One end to the vertical range between the other end of the rib be 20-100mm.
14. centrifugal wind wheel according to claim 1, which is characterized in that on the axis direction of the central spindle, the rib
One end between the other end of the rib vertical range and the centrifugal wind wheel on the axis direction of the central spindle
The ratio of height is 0.2-0.8.
15. centrifugal wind wheel according to claim 1, which is characterized in that the blade is spaced apart with the rib, the leaf
The minimum range of on piece any point to the rib is less than or equal to 20mm.
16. centrifugal wind wheel according to claim 1, which is characterized in that the rib includes sequentially connected first segment,
Two sections and third section, the first segment are connect with the bottom plate,
On the first segment to the direction of the third section, the radially inner side of the first segment towards the central spindle is deviated, institute
Stating the angle between the edge of the radially inner side of first segment and the blade is 2 ° -20 °.
17. centrifugal wind wheel according to claim 16, which is characterized in that in the first segment to the direction of the third section
On, the radially inner side of the second segment towards the central spindle deviates, the edge of the radially inner side of the second segment and the blade
Between angle be 15 ° -60 °.
18. centrifugal wind wheel according to claim 16, which is characterized in that have the between the first segment and the bottom plate
The radius of one fillet, first fillet is less than 10mm；
There is the second fillet, the radius of second fillet is less than 10mm between the first segment and the second segment；
There is third fillet, the radius of the third fillet is less than 10mm between the third section and the second segment.
19. centrifugal wind wheel according to claim 16, which is characterized in that the second segment extends along circular arc line, Huo Zhesuo
Second segment is stated along linear extension.
20. a kind of air conditioner characterized by comprising
Shell；
Centrifugal wind wheel, the centrifugal wind wheel are the centrifugal wind wheel according to any one of claim 1-19, the centrifugation wind
Wheel is disposed in the housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910099695.6A CN109578330A (en) | 2019-01-31 | 2019-01-31 | Centrifugal wind wheel and air conditioner |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910099695.6A CN109578330A (en) | 2019-01-31 | 2019-01-31 | Centrifugal wind wheel and air conditioner |
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| CN109578330A true CN109578330A (en) | 2019-04-05 |
Family
ID=65918475
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910099695.6A Pending CN109578330A (en) | 2019-01-31 | 2019-01-31 | Centrifugal wind wheel and air conditioner |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110116928A1 (en) * | 2009-11-16 | 2011-05-19 | Robert Bosch Gmbh | Open-hub centrifugal blower assembly |
| CN209444612U (en) * | 2019-01-31 | 2019-09-27 | 广东美的制冷设备有限公司 | Centrifugal wind wheel and air conditioner |
-
2019
- 2019-01-31 CN CN201910099695.6A patent/CN109578330A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110116928A1 (en) * | 2009-11-16 | 2011-05-19 | Robert Bosch Gmbh | Open-hub centrifugal blower assembly |
| CN209444612U (en) * | 2019-01-31 | 2019-09-27 | 广东美的制冷设备有限公司 | Centrifugal wind wheel and air conditioner |
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