CN106224287A - Centrifugal wind wheel and air-conditioner - Google Patents
Centrifugal wind wheel and air-conditioner Download PDFInfo
- Publication number
- CN106224287A CN106224287A CN201610768703.8A CN201610768703A CN106224287A CN 106224287 A CN106224287 A CN 106224287A CN 201610768703 A CN201610768703 A CN 201610768703A CN 106224287 A CN106224287 A CN 106224287A
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- CN
- China
- Prior art keywords
- centrifugal wind
- wheel hub
- noise reduction
- wind wheel
- wheel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- 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 open a kind of centrifugal wind wheel of the present invention and air-conditioner, wherein, centrifugal wind wheel includes wheel hub and connects the spoke of described wheel hub, and described wheel hub has the installing hole that power supply arbor is installed, and described wheel hub also provides the noise reduction hole being positioned at described installing hole periphery.Technical scheme is by offering noise reduction hole on the wheel hub of centrifugal wind wheel, 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, thus reducing the formation of eddy current, above-mentioned two aspect reduces the noise of centrifugal wind wheel jointly.
Description
Technical field
The present invention relates to air-conditioning technical field, particularly to a kind of centrifugal wind wheel and the air-conditioning being provided with this centrifugal wind wheel
Device.
Background technology
Being usually provided with centrifugal wind wheel in air-conditioner, centrifugal wind wheel can produce noise in the running, thus affects user's body
Test.
Summary of the invention
The main object of the present invention is to propose a kind of centrifugal wind wheel, it is intended to what reduction centrifugal wind wheel operationally produced makes an uproar
Sound.
For achieving the above object, the centrifugal wind wheel that the present invention proposes includes wheel hub and connects the spoke of described wheel hub, described
Wheel hub has the installing hole that power supply arbor is installed, and described wheel hub also provides the noise reduction hole being positioned at described installing hole periphery.
Preferably, the back side of described wheel hub is provided with the reinforcement being positioned at described noise reduction hole peripheral.
Preferably, described spoke includes that the spoke of the described wheel hub of multiple connection, multiple described spokes are set in distance.
Preferably, described noise reduction hole is arranged at the junction of described wheel hub and described spoke.
Preferably, each described wheel hub and the junction of described spoke are at least provided with noise reduction hole described in two.
Preferably, noise reduction hole described in two at described wheel hub radially in being intervally arranged.
Preferably, all stagger radially and circumferentially going up of described wheel hub in described two noise reduction holes.
Preferably, the wavelength of mechanical wave that described wheel hub produces is λ, noise reduction hole described in two at described wheel hub radially
Spacing is the odd-multiple of λ.
Preferably, described noise reduction hole is arranged at described in adjacent two between the junction of spoke and described wheel hub.
The present invention also provides for a kind of air-conditioner, and including centrifugal wind wheel, described centrifugal wind wheel includes wheel hub and connects described wheel
The spoke of hub, described wheel hub has the installing hole that power supply arbor is installed, and described wheel hub has also provided and has been positioned at described installing hole week
The noise reduction hole on limit.
Technical scheme, by offering noise reduction hole on the wheel hub of centrifugal wind wheel, on the one hand reduces the firm of wheel hub
Property, make the dromotropy of vibration, on the other hand make the air of centrifugal wind wheel fan side and blade-side mutually circulate, thus reduce
The formation of eddy current, above-mentioned two aspect reduces the noise of centrifugal wind wheel jointly.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
In having technology to describe, the required accompanying drawing used is briefly described, it should be apparent that, the accompanying drawing in describing below is only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to
Other accompanying drawing is obtained according to the structure shown in these accompanying drawings.
Fig. 1 is the structural representation of centrifugal wind wheel first embodiment of the present invention；
Fig. 2 is the structural representation at another visual angle of centrifugal wind wheel in Fig. 1；
Fig. 3 is the structural representation of centrifugal wind wheel the second embodiment of the present invention；
Fig. 4 is the top view of Fig. 3；
Fig. 5 is the structural representation of centrifugal wind wheel the 3rd embodiment of the present invention；
Fig. 6 is the structural representation of centrifugal wind wheel the 4th embodiment of the present invention；
Fig. 7 is the structural representation of centrifugal wind wheel the 5th embodiment of the present invention.
Drawing reference numeral illustrates:
| Label | Title | Label | Title |
| 10 | Centrifugal wind wheel | 11 | Air inducing circle |
| 12 | Blade | 13 | Wheel hub |
| 14 | Spoke | 15 | Mounting disc |
| 130 | Installing hole | 131 | Noise reduction hole |
| 132 | Reinforcement |
The realization of the object of the invention, functional characteristics and advantage will in conjunction with the embodiments, are described further referring to the drawings.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Describe, it is clear that described embodiment is only a part of embodiment of the present invention rather than whole embodiments wholely.Base
Embodiment in the present invention, those of ordinary skill in the art obtained under not making creative work premise all its
His embodiment, broadly falls into the scope of protection of the invention.
If it is to be appreciated that the embodiment of the present invention relates to directivity instruction (such as up, down, left, right, before and after ...),
Then directionality instruction be only used for explaining under a certain particular pose (as shown in drawings) relative position relation between each parts,
Motion conditions etc., if this particular pose changes, then directionality instruction changes the most therewith.
If it addition, the embodiment of the present invention relates to the description of " first ", " second " etc., then should " first ", " second " etc.
Description be only used for describing purpose, and it is not intended that instruction or imply its relative importance or implicit indicate indicated skill
The quantity of art feature.Thus, define " first ", the feature of " second " can express or implicitly include at least one this spy
Levy.It addition, the technical scheme between each embodiment can be combined with each other, but must be with those of ordinary skill in the art's energy
Enough be embodied as basis, when the combination of technical scheme occur conflicting maybe cannot realize time will be understood that the knot of this technical scheme
Close and do not exist, the most not within the protection domain of application claims.
The present invention proposes a kind of centrifugal wind wheel and is provided with the air-conditioner of this centrifugal wind wheel.
With reference to Fig. 1, centrifugal wind wheel 10 generally includes air inducing circle 11, blade 12 and blade seat, and the opposite end of blade 12 divides
Corresponding connection air inducing circle 11 and blade seat.Blade seat includes wheel hub 13, spoke and mounting disc 15, and spoke connects mounting disc 15 He
Wheel hub 13.
In embodiments of the present invention, as it is shown in figure 1, centrifugal wind wheel 10 includes wheel hub 13 and connects the wheel of described wheel hub 13
Spoke, described wheel hub 13 has the installing hole 130 that the rotating shaft of power supply machine is installed, and the outer peripheral edge being connected with described spoke, described
The noise reduction hole 131 being positioned at described installing hole 130 periphery is provided on wheel hub 13.
Concrete, operationally, mainly there are two aspect sources in source of making an uproar to centrifugal wind wheel 10.On the one hand, line voltage is unstable, holds
Being easily generated harmonic wave, the operating of motor can be impacted by this harmonic wave.Affected by this harmonic wave, the process of motor high-speed rotation
In, necessarily lead to vibration between motor shaft and centrifugal wind wheel 10 (because the inwall of motor shaft and installing hole 130 is to exist between part
Gap, even without the impact of harmonic wave, motor shaft also can and wheel hub 13 between produce vibration, harmonic wave can make vibration strengthen), this shakes
Move and can be conducted to spoke by wheel hub 13, then conducted to mounting disc 15 by spoke, be ultimately conducted to blade 12, and pass at this
During leading, vibration is a process progressively amplified, and therefore, the noise that final blade 12 produces is bigger.
On the other hand, centrifugal wind wheel 10 operationally, all can enter by the motor side of centrifugal wind wheel 10 and the side of air inducing circle 11
Wind, centrifugal wind wheel 10 is internal easily produces eddy current, thus produces noise.
In the present embodiment, wheel hub 13 is offered noise reduction hole 131, on the one hand can reduce the internal stress of wheel hub 13, thus
Reducing the rigidity of wind wheel in design strength allowed band, the wind wheel made has more preferable toughness, can reduce wheel hub 13 and electricity
The conduction of vibration in machine motor process.
Offering of noise reduction hole 131 can make the air of motor side and blade-side mutually circulate, thus reduces the formation of eddy current,
And then reduce the noise that eddy current produces.
In order to verify in the present embodiment, the perforate effect to wind wheel noise reduction, test with 6 centrifugal wind wheels 10, wherein, 3
Platform centrifugal wind wheel 10 is not offered 131,3, noise reduction hole centrifugal wind wheel 10 and is offered the noise reduction hole 131 (fall of 3 centrifugal wind wheels 10
Making an uproar hole 131, to offer quantity, position and size the most identical), carry 220v constant voltage to motor simultaneously, and measure simultaneously 6 from
The noise of heart-wind syndrome wheel 10 generation.
Table 1, centrifugal wind wheel noise contrast table before and after perforate
From this table it can be seen that the noise of centrifugal wind wheel 10 after offering noise reduction hole 131 averagely reduces 1.27dB.
Technical scheme, by offering noise reduction hole 131 on the wheel hub 13 of centrifugal wind wheel 10, on the one hand reduces
The rigidity of wheel hub 13, makes the dromotropy of vibration, and the air on the other hand making centrifugal wind wheel 10 blower fan side and blade 12 side is mutual
Circulation, thus reduce the formation of eddy current, above-mentioned two aspect reduces the noise of centrifugal wind wheel 10 jointly.
With reference to Fig. 2, centrifugal wind wheel 10 rotating speed is higher, offers noise reduction hole 131 and may result in noise reduction hole 131 on wheel hub 13
Periphery local strength weakens, and centrifugal wind wheel 10 operates for a long time and may result in noise reduction hole 131 periphery cracking.In the present embodiment,
In order to strengthen the intensity of wheel hub 13, the lateral surface (towards the one side of motor) of described wheel hub 13, it is provided with and is positioned at described noise reduction hole 131
The reinforcement 132 of periphery.In the present embodiment, equally, testing with 6 centrifugal wind wheels 10,6 centrifugal wind wheels 10 are all at wheel hub
Offering noise reduction hole 131 (it is the most identical that quantity, position and size are offered in noise reduction hole 131) on 13, wherein the back side of 3 arranges reinforcement
Muscle 132, other 3 are not provided with reinforcement 132.
Table 2, arranges centrifugal wind wheel noise contrast table before and after ring stiffener
By this table 2 it can be seen that arrange ring stiffener 142 after, the noise of centrifugal wind wheel 10 slightly raises.
The analysis of causes: before arranging ring stiffener 142, this is owing to ring stiffener 142 makes the whole of centrifugal wind wheel 10
Body rigidity strengthens again, and the effect that the benefit of perforate own is the biggest is contemplated to reduce the integral rigidity of centrifugal wind wheel 10, reduces
The transmission of vibration, is equivalent to reduce the beneficial effect in noise reduction hole 141 to a certain extent after arranging ring stiffener 142.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
Time the phenomenon that ruptures occurs.So in the case of less to noise effect, arranging ring stiffener 142 and can ensure raising
The service life of centrifugal wind wheel 10.
Seeing figures.1.and.2, in one embodiment, described spoke includes the spoke 14 of the described wheel hub of multiple connection 13, multiple
Described spoke 14 is set in distance.So, the rigidity of blade seat entirety reduce further, and noise also can reduce.
With reference to Fig. 3 to Fig. 5, in one embodiment, in order to reduce noise further, described noise reduction hole 131 is arranged at described
Wheel hub 13 and the junction of described spoke 14.First the vibration produced between motor shaft and wheel hub 13 is conducted to spoke by wheel hub 13
14, then conducted to mounting disc 15 by spoke 14, finally conducted to blade 12 by mounting disc 15.Owing to spoke 14 is in ribbon
Arranging, in the process, the noise reduction hole 131 being arranged at wheel hub 13 and the junction of spoke 14 can effectively reduce spoke 14 to shaking
Dynamic conduction.In order to verify that noise reduction hole 131 is arranged at the noise reduction of wheel hub 13 and the junction of spoke 14, do and test as follows:
Carry 220v constant voltage to motor simultaneously, and measure the noise that 6 centrifugal wind wheels 10 produce, wherein 3 centrifugal wind wheels simultaneously
The noise reduction hole 131 of 10 is arranged at the middle part (in the middle part of abbreviation) between installing hole 130 and wheel hub 13 periphery, 3 centrifugal wind wheels 10
Noise reduction hole 131 is arranged at the junction (abbreviation junction) of wheel hub 13 and spoke 14.
Table 3, noise reduction hole is arranged at the middle part of centrifugal wind wheel and the noise contrast table of junction
Can be drawn by table 3, noise reduction hole 131 is arranged at junction ratio and is arranged at middle part, noise relative reduction 1.87dB.
With reference to Fig. 3 to Fig. 5, on the basis of a upper embodiment, in order to reduce the wheel hub 13 conduction to vibration further, in
In the present embodiment, the junction of each described wheel hub 13 and described spoke 14 is at least provided with noise reduction hole 131 described in two.Two noise reductions
Hole 131 is to the barriering effect of Vibration propagation more preferably.
With reference to Fig. 5 and Fig. 6, in a further preferred embodiment, described noise reduction hole 131 is arranged at wheel hub 13 described in adjacent two
And between the junction of described spoke 14.In order to verify the noise reduction in noise reduction hole 131 in the present embodiment, do following experiment: with
Time carry 220v constant voltage to motor, and measure the noise that 6 centrifugal wind wheels 10 produce, wherein 3 centrifugal wind wheels 10 simultaneously
The middle part (in the middle part of abbreviation) that is arranged between installing hole 130 and wheel hub 13 periphery, noise reduction hole 131, the fall of 3 centrifugal wind wheels 10
Hole 131 of making an uproar is arranged between two adjacent spoke 14 and the junction of wheel hub 13 (be called for short edge).
Table 4, noise reduction hole is arranged at the middle part of centrifugal wind wheel and the noise contrast table of junction
Can be drawn by table 3, noise reduction hole 131 is arranged at edge and is arranged at middle part relative to noise reduction hole 131, and noise is average
Reduce 0.73dB.
With reference to Fig. 7, on the basis of a upper embodiment, in order to reduce noise further, described two noise reduction holes 131 (first
Noise reduction hole and the second noise reduction hole) all stagger in the radial direction of described wheel hub 13 and the circumference of described wheel hub 13, so, wheel hub 13 shakes
The mechanical wave of movable property life conducting path on spoke 14 lengthens, and the amplitude of the mechanical wave being ultimately conducted on blade can weaken,
Thus reach the effect of noise reduction.
It addition, further, in order to reduce noise, the wavelength X of the mechanical wave that described wheel hub 13 produces, noise reduction described in two
Hole 131 is L in the spacing radially of described wheel hub 13, and wherein L is the odd-multiple of λ.Specifically, vibrate by wheel hub 13 to wheel
During spoke conduction, noise reduction hole 131 can produce Phase delay to mechanical wave, through the mechanical wave in the first noise reduction hole, and entered
The mechanical wave in the second noise reduction hole will interfere, owing to L is the odd-multiple of λ, so, the mechanical wave through the first noise reduction hole with
The mechanical wave entering the second noise reduction hole can occur superposition cancellation (crest and trough meet), such that it is able to be substantially reduced the biography of vibration
Leading, noise is greatly reduced.
Here, λ is variable, different centrifugal wind wheels 10, its λ value is different, the motor of different rotating speeds, and λ value is the most not
With.So, as a example by air-conditioner, when air-conditioner normally works, drive the rotating speed of motor of centrifugal wind wheel 10 rotation generally
850rpm, now can drive centrifugal wind wheel to rotate 10 with the motor of 850rpm, and measure the machine that now centrifugal wind wheel 10 produces
The wavelength X of tool ripple, then based on the L odd-multiple as λ, offers noise reduction hole 131.
The arrangement mode in two noise reduction holes 131 can be to be laid out in parallel at the periphery of wheel hub 13, it is also possible to is described
Wheel hub radially in being intervally arranged.Here, two noise reduction holes are equivalent in being intervally arranged be applied with two blockages to vibration, permissible
Reduce the conduction of vibration further.
The shape in noise reduction hole 131 can be multiple, and such as waist-shaped hole, circular hole, square opening, tri-angle-holed and other are regular
Or irregular be all possible.In the present embodiment, described noise reduction hole 131 is waist-shaped hole, and described waist-shaped hole is along described wheel hub
13 circumferentially extending.When wheel hub 13 vibrates, direction of vibration Shi Youqi conducts to edge at center, owing to waist-shaped hole is elongated
, waist-shaped hole is preferable along the circumferentially extending barriering effect to vibration of wheel hub 13.
The foregoing is only the preferred embodiments of the present invention, not thereby limit the scope of the claims of the present invention, every at this
Under the inventive concept of invention, utilize the equivalent structure transformation that description of the invention and accompanying drawing content are made, or directly/indirectly use
The technical field relevant at other is included in the scope of patent protection of the present invention.
Claims (10)
1. a centrifugal wind wheel, including wheel hub and the spoke of the described wheel hub of connection, it is characterised in that described wheel hub has power supply machine
The installing hole that axle is installed, described wheel hub also provides the noise reduction hole being positioned at described installing hole periphery.
2. centrifugal wind wheel as claimed in claim 1, it is characterised in that the lateral surface of described wheel hub is provided with and is positioned at described noise reduction hole
The reinforcement of periphery.
3. centrifugal wind wheel as claimed in claim 1, it is characterised in that described spoke includes the spoke of the described wheel hub of multiple connection
Bar, multiple described spokes are set in distance.
4. centrifugal wind wheel as claimed in claim 3, it is characterised in that described noise reduction hole is arranged at described wheel hub and described spoke
Junction.
5. centrifugal wind wheel as claimed in claim 4, it is characterised in that the junction of each described wheel hub and described spoke is at least
It is provided with noise reduction hole described in two.
6. centrifugal wind wheel as claimed in claim 5, it is characterised in that noise reduction hole described in two described wheel hub radially in
Every arrangement.
7. centrifugal wind wheel as claimed in claim 5, it is characterised in that noise reduction hole described in two is at described wheel hub radially and circumferentially
On all stagger.
8. centrifugal wind wheel as claimed in claim 7, it is characterised in that the wavelength of the mechanical wave that described hub vibrational produces is λ,
Noise reduction hole described in two is in the odd-multiple that spacing radially is λ of described wheel hub.
9. centrifugal wind wheel as claimed in claim 3, it is characterised in that described noise reduction hole be arranged at spoke described in adjacent two with
Between the junction of described wheel hub.
10. an air-conditioner, it is characterised in that include the centrifugal wind wheel as described in claim 1 to 9 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 true CN106224287A (en) | 2016-12-14 |
| CN106224287B 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106224287B (en) | 2019-03-15 |
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