CN106224287B - Centrifugal wind wheel and air conditioner - Google Patents
Centrifugal wind wheel and air conditioner Download PDFInfo
- Publication number
- CN106224287B CN106224287B CN201610768703.8A CN201610768703A CN106224287B CN 106224287 B CN106224287 B CN 106224287B CN 201610768703 A CN201610768703 A CN 201610768703A CN 106224287 B CN106224287 B CN 106224287B
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- CN
- China
- Prior art keywords
- wheel hub
- centrifugal wind
- noise reduction
- wheel
- wind wheel
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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
-
- 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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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The present invention discloses a kind of centrifugal wind wheel and air conditioner, wherein centrifugal wind wheel includes wheel hub and the spoke for connecting the wheel hub, and the wheel hub has the mounting hole of power supply arbor installation, also provides the noise reduction hole positioned at the mounting hole periphery on the wheel hub.Technical solution of the present invention on the wheel hub of centrifugal wind wheel by opening up noise reduction hole, on the one hand the rigidity of wheel hub is reduced, make the dromotropy of vibration, on the other hand the air of centrifugal wind wheel fan side and blade-side is made mutually to circulate, to reduce the formation of vortex, above-mentioned two aspect reduces the noise of centrifugal wind wheel jointly.
Description
Technical field
The present invention relates to air-conditioning technical field, in particular to a kind of centrifugal wind wheel and the air-conditioning for being equipped with the centrifugal wind wheel
Device.
Background technique
Centrifugal wind wheel is usually provided in air conditioner, centrifugal wind wheel can generate noise in the running, to influence user's body
It tests.
Summary of the invention
The main object of the present invention is to propose a kind of centrifugal wind wheel, it is intended to which reduce that centrifugal wind wheel generates at runtime makes an uproar
Sound.
To achieve the above object, centrifugal wind wheel proposed by the present invention includes the spoke of wheel hub and the connection wheel hub, described
Wheel hub has the mounting hole of power supply arbor installation, also provides the noise reduction hole positioned at the mounting hole periphery on the wheel hub.
Preferably, the back side of the wheel hub is equipped with the reinforcing rib positioned at the noise reduction hole peripheral.
Preferably, the spoke includes the spoke of multiple connection wheel hubs, and multiple spokes are set in distance.
Preferably, the noise reduction hole is set to the junction of the wheel hub Yu the spoke.
Preferably, the junction of each wheel hub and the spoke is at least provided with the two noise reduction holes.
Preferably, the two noise reduction holes are in the wheel hub radially in being intervally arranged.
Preferably, two noise reduction hole the wheel hub radially and circumferentially on be staggered.
Preferably, the wavelength for the mechanical wave that the wheel hub generates is λ, the two noise reduction holes the wheel hub radially
Spacing is the odd-multiple of λ.
Preferably, the noise reduction hole is set between the spoke of adjacent two and the junction of the wheel hub.
The present invention also provides a kind of air conditioner, including centrifugal wind wheel, the centrifugal wind wheel includes wheel hub and the connection wheel
The spoke of hub, the wheel hub have the mounting hole of power supply arbor installation, have also been provided on the wheel hub positioned at the mounting hole week
The noise reduction hole on side.
On the one hand technical solution of the present invention reduces the rigid of wheel hub by opening up noise reduction hole on the wheel hub of centrifugal wind wheel
Property, make the dromotropy of vibration, so that the air of centrifugal wind wheel fan side and blade-side is mutually circulated, to reduce
The formation of vortex, above-mentioned two aspect reduce the noise of centrifugal wind wheel jointly.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
The structure shown according to these attached drawings obtains other attached drawings.
Fig. 1 is the structural schematic diagram of centrifugal wind wheel first embodiment of the present invention；
Fig. 2 is the structural schematic diagram at another visual angle of centrifugal wind wheel in Fig. 1；
Fig. 3 is the structural schematic diagram of centrifugal wind wheel second embodiment of the present invention；
Fig. 4 is the top view of Fig. 3；
Fig. 5 is the structural schematic diagram of centrifugal wind wheel 3rd embodiment of the present invention；
Fig. 6 is the structural schematic diagram of centrifugal wind wheel fourth embodiment of the present invention；
Fig. 7 is the structural schematic diagram of the 5th embodiment of centrifugal wind wheel of the present invention.
Drawing reference numeral explanation:
| Label | Title | Label | Title |
| 10 | Centrifugal wind wheel | 11 | Air inducing circle |
| 12 | Blade | 13 | Wheel hub |
| 14 | Spoke | 15 | Mounting disc |
| 130 | Mounting hole | 131 | Noise reduction hole |
| 132 | Reinforcing rib |
The embodiments will be further described with reference to the accompanying drawings for the realization, the function and the advantages of the object of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiment is only a part of the embodiments of the present invention, instead of all the embodiments.Base
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts it is all its
His embodiment, shall fall within the protection scope of the present invention.
It is to be appreciated that if relating to directionality instruction (such as up, down, left, right, before and after ...) in the embodiment of the present invention,
Then directionality instruction be only used for explain under a certain particular pose (as shown in the picture) between each component relative positional relationship,
Motion conditions etc., if the particular pose changes, directionality instruction is also correspondingly changed correspondingly.
In addition, being somebody's turn to do " first ", " second " etc. if relating to the description of " first ", " second " etc. in the embodiment of the present invention
Description be used for description purposes only, be not understood to indicate or imply its relative importance or implicitly indicate indicated skill
The quantity of art feature." first " is defined as a result, the feature of " second " can explicitly or implicitly include at least one spy
Sign.It in addition, the technical solution between each embodiment can be combined with each other, but must be with those of ordinary skill in the art's energy
It is enough realize based on, will be understood that the knot of this technical solution when conflicting or cannot achieve when occurs in the combination of technical solution
Conjunction is not present, also not the present invention claims protection scope within.
The present invention proposes a kind of centrifugal wind wheel and the air conditioner for being provided with the centrifugal wind wheel.
Referring to Fig.1, centrifugal wind wheel 10 generally includes air inducing circle 11, blade 12 and blade seat, the opposite end point of blade 12
It is not correspondingly connected with air inducing circle 11 and blade seat.Blade seat includes wheel hub 13, spoke and mounting disc 15, and spoke connects 15 He of mounting disc
Wheel hub 13.
In embodiments of the present invention, as shown in Figure 1, centrifugal wind wheel 10 includes wheel hub 13 and the wheel for connecting the wheel hub 13
Spoke, the mounting hole 130 that there is the wheel hub 13 shaft of power supply machine to install, and the outer peripheral edge being connect with the spoke, it is described
The noise reduction hole 131 positioned at 130 periphery of mounting hole is provided on wheel hub 13.
Specifically, centrifugal wind wheel 10 is at runtime, mainly there are two aspect sources in source of making an uproar.On the one hand, network voltage is unstable, holds
It is also easy to produce harmonic wave, which can impact the operating of motor.It is influenced by the harmonic wave, the process of motor high-speed rotation
In, vibration is necessarily led between motor shaft and centrifugal wind wheel 10 (because the inner wall of motor shaft and mounting hole 130 is that there are between part
Gap, even without the influence of harmonic wave, motor shaft can also generate vibration between wheel hub 13, and harmonic wave can be such that vibration reinforces), the vibration
It is dynamic to be conducted by wheel hub 13 to spoke, it is then conducted by spoke to mounting disc 15, is ultimately conducted to blade 12, and in this biography
During leading, vibration is the process gradually amplified, and therefore, the noise that final blade 12 generates is larger.
On the other hand, at runtime, the side of the motor side of centrifugal wind wheel 10 and air inducing circle 11 can be into for centrifugal wind wheel 10
Wind is easy to produce vortex inside centrifugal wind wheel 10, to generate noise.
In the present embodiment, noise reduction hole 131 is opened up on wheel hub 13, on the one hand can reduce the internal stress of wheel hub 13, thus
The rigidity of wind wheel is reduced in design strength allowed band, the wind wheel made has better toughness, can reduce wheel hub 13 and electricity
The conduction vibrated in machine motion process.
Opening up for noise reduction hole 131 can make the air of motor side and blade-side mutually circulate, so that the formation of vortex is reduced,
And then reduce the noise that vortex generates.
In order to verify in the present embodiment, the effect of wind wheel noise reduction is tested, wherein 3 in aperture with 6 centrifugal wind wheels 10
Platform centrifugal wind wheel 10 does not open up 131,3, noise reduction hole centrifugal wind wheel 10 and offers (the drop of 3 centrifugal wind wheels 10 of noise reduction hole 131
Making an uproar hole 131, to open up quantity, position and size all the same), while motor being given to convey 220v constant voltage, and measure simultaneously 6 from
The noise that heart wind wheel 10 generates.
Table 1, centrifugal wind wheel noise contrast table before and after aperture
The noise that can be seen that the centrifugal wind wheel 10 after opening up noise reduction hole 131 from the table averagely reduces 1.27dB.
On the one hand technical solution of the present invention is reduced by opening up noise reduction hole 131 on the wheel hub 13 of centrifugal wind wheel 10
The rigidity of wheel hub 13 makes the dromotropy of vibration, on the other hand makes the air of 10 blower side of centrifugal wind wheel and 12 side of blade mutual
Circulation, to reduce the formation of vortex, above-mentioned two aspect reduces the noise of centrifugal wind wheel 10 jointly.
Referring to Fig. 2,10 revolving speed of centrifugal wind wheel is higher, and noise reduction hole 131 is opened up on wheel hub 13 may result in noise reduction hole 131
Periphery local strength weakens, and the operating for a long time of centrifugal wind wheel 10 may result in 131 periphery of noise reduction hole cracking.In the present embodiment,
In order to reinforce the intensity of wheel hub 13, the lateral surface (towards the one side of motor) of the wheel hub 13 is equipped with and is located at the noise reduction hole 131
The reinforcing rib 132 of periphery.In the present embodiment, equally, it is tested with 6 centrifugal wind wheels 10,6 centrifugal wind wheels 10 are in wheel hub
Noise reduction hole 131 (it is all the same that noise reduction hole 131 opens up quantity, position and size) is offered on 13, is reinforced wherein 3 back side is arranged
Muscle 132, in addition 3 are not provided with reinforcing rib 132.
Table 2, setting ring stiffener front and back centrifugal wind wheel noise contrast table
After ring stiffener 142 is arranged it can be seen from the table 2, the noise of centrifugal wind wheel 10 is slightly increased.
The analysis of causes: before setting ring stiffener 142, this is because ring stiffener 142 makes the whole of centrifugal wind wheel 10
Body rigidity strengthens again, and the very big effect of the benefit of aperture itself is exactly the integral rigidity in order to reduce centrifugal wind wheel 10, reduces
The transmitting of vibration is equivalent to the beneficial effect for reducing noise reduction hole 141 after ring stiffener 142 is arranged to a certain extent.Such as
Fruit is not provided with ring stiffener 142, and strong 10 degree of centrifugal wind wheel may can not meet requirement, causes centrifugal wind wheel 10 in rotation
When the phenomenon that rupturing.So setting ring stiffener 142 can ensure raising in the lesser situation of noise effect
The service life of centrifugal wind wheel 10.
Referring to Figures 1 and 2, in one embodiment, the spoke includes the spoke 14 of multiple connection wheel hubs 13, multiple
The spoke 14 is set in distance.In this way, the rigidity of blade seat entirety further reduced, noise can also be reduced.
Referring to Fig. 3 to Fig. 5, in one embodiment, in order to further decrease noise, the noise reduction hole 131 is set to described
The junction of wheel hub 13 and the spoke 14.The vibration generated between motor shaft and wheel hub 13 is conducted by wheel hub 13 to spoke first
14, it is then conducted by spoke 14 to mounting disc 15, is finally conducted by mounting disc 15 to blade 12.Since spoke 14 is stripped
It is arranged, in the process, the noise reduction hole 131 for being set to the junction of wheel hub 13 and spoke 14 can effectively reduce 14 pairs of spoke vibrations
Dynamic conduction.In order to verify the noise reduction effect that noise reduction hole 131 is set to the junction of wheel hub 13 and spoke 14, following experiment is done:
220v constant voltage is conveyed to motor simultaneously, and measures the noise that 6 centrifugal wind wheels 10 generate simultaneously, wherein 3 centrifugal wind wheels
10 noise reduction hole 131 is set to the middle part (referred to as middle part) between 13 periphery of mounting hole 130 and wheel hub, 3 centrifugal wind wheels 10
Noise reduction hole 131 is set to the junction (abbreviation junction) of wheel hub 13 Yu spoke 14.
Table 3, noise reduction hole are set to the middle part of centrifugal wind wheel and the noise contrast table of junction
It can be concluded that, noise reduction hole 131 is set to junction ratio by table 3 and is set to middle part, noise relative reduction 1.87dB.
Referring to Fig. 3 to Fig. 5, on the basis of a upper embodiment, in order to further decrease the conduction of 13 pairs of wheel hub vibrations, in
In the present embodiment, the junction of each wheel hub 13 and the spoke 14 is at least provided with the two noise reduction holes 131.Two noise reductions
Hole 131 to the barriering effect of Vibration propagation more preferably.
Referring to figure 5 and figure 6, in a further preferred embodiment, the noise reduction hole 131 is set to the wheel hub 13 of adjacent two
Between the junction of the spoke 14.In order to verify the noise reduction effect in noise reduction hole 131 in the present embodiment, following experiment is done: same
When give motor convey 220v constant voltage, and simultaneously measure 6 centrifugal wind wheels 10 generate noise, wherein 3 centrifugal wind wheels 10
Noise reduction hole 131 be set to the middle part (referred to as middle part) between 13 periphery of mounting hole 130 and wheel hub, the drop of 3 centrifugal wind wheels 10
Hole 131 of making an uproar is set between two adjacent spokes 14 and the junction of wheel hub 13 (abbreviation edge).
Table 4, noise reduction hole are set to the middle part of centrifugal wind wheel and the noise contrast table of junction
By table 3, it can be concluded that, noise reduction hole 131 is set to edge and is set to middle part relative to noise reduction hole 131, and noise is average
Reduce 0.73dB.
Referring to Fig. 7, on the basis of a upper embodiment, in order to further decrease noise, two noise reduction hole 131 (first
Noise reduction hole and the second noise reduction hole) it is staggered in the circumferential direction of the radial and described wheel hub 13 of the wheel hub 13, in this way, wheel hub 13 shakes
Conducting path of the raw mechanical wave of movable property on spoke 14 lengthens, and the amplitude for the mechanical wave being ultimately conducted on blade can weaken,
To achieve the effect that noise reduction.
In addition, further, in order to reduce noise, the wavelength X for the mechanical wave that the wheel hub 13 generates, two noise reductions
Hole 131 is L in the spacing radially of the wheel hub 13, and wherein L is the odd-multiple of λ.Specifically, vibration is from wheel hub 13 to wheel
During spoke conducts, noise reduction hole 131 can generate phase delay to mechanical wave, by the mechanical wave in the first noise reduction hole, and into mistake
The mechanical wave in the second noise reduction hole will interfere, due to L be λ odd-multiple, so, by the first noise reduction hole mechanical wave with
It can occur to be superimposed cancellation (peaks and troughs are met) into the mechanical wave for crossing the second noise reduction hole, so as to substantially reduce the biography of vibration
It leads, noise is greatly reduced.
Here, λ is variable, different centrifugal wind wheel 10, λ value is different, the motor of different rotating speeds, and λ value is not yet
Together.So when air conditioner works normally, the revolving speed for the motor for driving centrifugal wind wheel 10 to rotate is generally by taking air conditioner as an example
850rpm can be rotated 10 with the motor driven centrifugal wind wheel of 850rpm at this time, and measure the machine that centrifugal wind wheel 10 generates at this time
The wavelength X of tool wave, then by L for the odd-multiple of λ based on, open up noise reduction hole 131.
The arrangement mode in two noise reduction holes 131 can be the periphery in wheel hub 13 in laid out in parallel, be also possible to described
Wheel hub is radially in be intervally arranged.It, can be with here, two noise reduction holes are applied with two blockages to vibration in being intervally arranged to be equivalent to
Further decrease the conduction of vibration.
The shape in noise reduction hole 131 can be a variety of, such as waist-shaped hole, circular hole, square hole, tri-angle-holed and other are regular
Or it irregular is all possible.In the present embodiment, the noise reduction hole 131 is waist-shaped hole, and the waist-shaped hole is along the wheel hub
13 circumferentially extending.When wheel hub 13 vibrates, direction of vibration is conducted from its center to edge, since waist-shaped hole is elongated
, waist-shaped hole is preferable to the barriering effect of vibration along the circumferentially extending of wheel hub 13.
The above description is only a preferred embodiment of the present invention, is not intended to limit the scope of the invention, all at this
Under the inventive concept of invention, using equivalent structure transformation made by description of the invention and accompanying drawing content, or directly/use indirectly
It is included in other related technical areas in scope of patent protection of the invention.
Claims (4)
1. a kind of centrifugal wind wheel, the spoke including wheel hub and the connection wheel hub, which is characterized in that the wheel hub has power supply machine
The mounting hole of axis installation, also provides the noise reduction hole positioned at the mounting hole periphery on the wheel hub；The spoke includes multiple
Connect the spoke of the wheel hub, the junction of each wheel hub and the spoke is at least provided with the two noise reduction holes, two institutes
State noise reduction hole the wheel hub radially and circumferentially on be staggered, the wavelength for the mechanical wave that the hub vibrational generates is λ, two institutes
State the odd-multiple that noise reduction hole is λ in the spacing radially of the wheel hub.
2. centrifugal wind wheel as described in claim 1, which is characterized in that the lateral surface of the wheel hub, which is equipped with, is located at the noise reduction hole
The reinforcing rib of periphery.
3. centrifugal wind wheel as described in claim 1, which is characterized in that multiple spokes are set in distance.
4. a kind of air conditioner, which is characterized in that including the centrifugal wind wheel as described in claims 1 to 3 any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610768703.8A CN106224287B (en) | 2016-08-30 | 2016-08-30 | Centrifugal wind wheel and air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610768703.8A CN106224287B (en) | 2016-08-30 | 2016-08-30 | Centrifugal wind wheel and air conditioner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106224287A CN106224287A (en) | 2016-12-14 |
| CN106224287B true CN106224287B (en) | 2019-03-15 |
Family
ID=58071517
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610768703.8A Active CN106224287B (en) | 2016-08-30 | 2016-08-30 | Centrifugal wind wheel and air conditioner |
Country Status (1)
| Country | Link |
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| CN (1) | CN106224287B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003214386A (en) * | 2002-01-28 | 2003-07-30 | Matsushita Ecology Systems Co Ltd | Centrifugal impeller |
| CN101328903A (en) * | 2007-06-20 | 2008-12-24 | 乐金电子(天津)电器有限公司 | Forward multiple-wing fan of air conditioner |
| CN102330706A (en) * | 2010-07-13 | 2012-01-25 | 珠海格力电器股份有限公司 | Centrifugal wind wheel |
| CN203476794U (en) * | 2013-09-16 | 2014-03-12 | 宁波方太厨具有限公司 | Impeller structure of centrifugal fan |
| CN203962469U (en) * | 2014-06-26 | 2014-11-26 | 珠海格力电器股份有限公司 | Centrifugal wind wheel and use the air conditioner of this centrifugal wind wheel |
| CN204591782U (en) * | 2015-02-06 | 2015-08-26 | 一汽-法雷奥汽车空调有限公司 | Blower wheel and comprise the blower of this impeller |
| CN206017257U (en) * | 2016-08-30 | 2017-03-15 | 芜湖美智空调设备有限公司 | Centrifugal wind wheel and air-conditioner |
-
2016
- 2016-08-30 CN CN201610768703.8A patent/CN106224287B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003214386A (en) * | 2002-01-28 | 2003-07-30 | Matsushita Ecology Systems Co Ltd | Centrifugal impeller |
| CN101328903A (en) * | 2007-06-20 | 2008-12-24 | 乐金电子(天津)电器有限公司 | Forward multiple-wing fan of air conditioner |
| CN102330706A (en) * | 2010-07-13 | 2012-01-25 | 珠海格力电器股份有限公司 | Centrifugal wind wheel |
| CN203476794U (en) * | 2013-09-16 | 2014-03-12 | 宁波方太厨具有限公司 | Impeller structure of centrifugal fan |
| CN203962469U (en) * | 2014-06-26 | 2014-11-26 | 珠海格力电器股份有限公司 | Centrifugal wind wheel and use the air conditioner of this centrifugal wind wheel |
| CN204591782U (en) * | 2015-02-06 | 2015-08-26 | 一汽-法雷奥汽车空调有限公司 | Blower wheel and comprise the blower of this impeller |
| CN206017257U (en) * | 2016-08-30 | 2017-03-15 | 芜湖美智空调设备有限公司 | Centrifugal wind wheel and air-conditioner |
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| Publication number | Publication date |
|---|---|
| CN106224287A (en) | 2016-12-14 |
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