CN110360656A - Tubular wine wheel and air conditioner indoor unit - Google Patents
Tubular wine wheel and air conditioner indoor unit Download PDFInfo
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- CN110360656A CN110360656A CN201910733572.3A CN201910733572A CN110360656A CN 110360656 A CN110360656 A CN 110360656A CN 201910733572 A CN201910733572 A CN 201910733572A CN 110360656 A CN110360656 A CN 110360656A
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- tubular wine
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- 238000010521 absorption reaction Methods 0.000 claims abstract description 159
- 239000007787 solid Substances 0.000 claims abstract description 4
- 208000002925 dental caries Diseases 0.000 claims description 7
- 239000011797 cavity material Substances 0.000 claims 6
- 230000009467 reduction Effects 0.000 description 13
- 238000000034 method Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 7
- 238000010586 diagram Methods 0.000 description 5
- 239000011358 absorbing material Substances 0.000 description 3
- 230000008569 process Effects 0.000 description 2
- 229920000742 Cotton Polymers 0.000 description 1
- 229920005830 Polyurethane Foam Polymers 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000006854 communication Effects 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000000994 depressogenic effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 239000011496 polyurethane foam Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000000644 propagated effect Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/0007—Indoor units, e.g. fan coil units
- F24F1/0018—Indoor units, e.g. fan coil units characterised by fans
- F24F1/0025—Cross-flow or tangential fans
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/0007—Indoor units, e.g. fan coil units
- F24F1/0059—Indoor units, e.g. fan coil units characterised by heat exchangers
- F24F1/0063—Indoor units, e.g. fan coil units characterised by heat exchangers by the mounting or arrangement of the heat exchangers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/20—Casings or covers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/24—Means for preventing or suppressing noise
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/20—Casings or covers
- F24F2013/205—Mounting a ventilator fan therein
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/24—Means for preventing or suppressing noise
- F24F2013/242—Sound-absorbing material
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The present invention discloses a kind of tubular wine wheel and air conditioner indoor unit.The tubular wine wheel includes in the impeller for two end plates of two end plates and connection being oppositely arranged, and the impeller includes the more piece cotyledon wheel arranged along the length direction of the tubular wine wheel, and the middle section disk of cotyledon wheel described in connection two adjacent sections.Wherein, the middle section disk is formed with sound absorption cavity in hollow setting, and the middle section disk has the side plate positioned at the sound absorption cavity two sides, at least one described side plate has provided sound-absorption hole along the length direction of the tubular wine wheel；Alternatively, the middle section disk is in solid setting, the middle section disk has provided sound-absorption hole along the length direction of the tubular wine wheel.Tubular wine wheel of the invention can reduce noise caused by tubular wine wheel work.
Description
Technical field
The present invention relates to air conditioner indoor unit field, in particular to a kind of tubular wine wheel and air conditioner indoor unit.
Background technique
Air conditioner indoor unit is usually mounted with tubular wine wheel, to be blown to cold wind or hot wind using tubular wine wheel high speed rotation
It is indoor.Figure of description 1 is please referred to, conventional through-flow wind 10 ' generally includes two end plates 100 and connects the leaf of two end plates 100
Wheel 200, impeller 200 includes the more piece cotyledon wheel 210 arranged along the length direction of conventional tubular wine wheel 10 ', and is connected adjacent
The middle section ring 230 of two sub- impellers 210.Ring 230 is saved in this to be arranged in circular ring shape, is only used for connecting two adjacent sub- impellers
210, therefore do not have decrease of noise functions.This leads to conventional tubular wine wheel 10 ' when rotating at high speed, is easy to produce biggish noise, does
The life and work of user is disturbed, the usage experience for using air conditioner indoor unit is reduced.
Summary of the invention
The main object of the present invention is to propose a kind of tubular wine wheel, it is intended to reduce noise caused by tubular wine wheel work.
To achieve the above object, the present invention proposes that a kind of tubular wine wheel, the tubular wine wheel include in two be oppositely arranged
A end plate and the impeller for connecting two end plates, the impeller include the more piece arranged along the length direction of the tubular wine wheel
Cotyledon wheel, and the middle section disk of cotyledon wheel described in connection two adjacent sections.Wherein, the middle section disk is inhaled in hollow setting with being formed with
Sound chamber, the middle section disk have the side plate positioned at the sound absorption cavity two sides, at least one described side plate is along the tubular wine wheel
Length direction has provided sound-absorption hole；Alternatively, the middle section disk is in solid setting, length of the middle section disk along the tubular wine wheel
Direction has provided sound-absorption hole.
Optionally, only one of them described side plate has provided multiple sound-absorption holes, this provides the thickness of the side plate of sound-absorption hole
Less than the thickness of side plate described in another.
Optionally, two side plates have provided multiple sound-absorption holes；Be additionally provided with soundproof plate in the sound absorption cavity, it is described every
The sound absorption cavity is separated into two sub- cavitys by soundboard, and two sub- cavitys connect with the sound-absorption hole on two side plates respectively
It is logical.
Optionally, two side plates have provided multiple sound-absorption holes, also, the sound-absorption hole on one of them described side plate
It is in shift to install with the sound-absorption hole on side plate described in another.
Optionally, the thickness of the side plate for providing sound-absorption hole not less than 0.1mm and is not more than 2mm.
Optionally, the porosity of the side plate of sound-absorption hole is provided not less than 0.1% and no more than 20%.
Optionally, sound absorption cavity depth on the length direction of the tubular wine wheel not less than 1mm and is not more than
100mm。
Optionally, the sound-absorption hole is round hole or square hole or bar shaped slit.
Optionally, when the sound-absorption hole is round hole or square hole, the aperture of the sound-absorption hole is not less than 0.1mm and less
In 2.5mm；Alternatively, the width of the sound-absorption hole not less than 0.1mm and is not more than 2.5mm when the sound-absorption hole is bar shaped slit.
Optionally, sound-absorbing material is filled in the sound absorption cavity.
Optionally, the end plate has provided multiple sound-absorption holes.
The present invention also provides a kind of air conditioner indoor unit, the air conditioner indoor unit includes shell, heat exchanger and tubular wine wheel.Its
In, the shell is equipped with air inlet and the air outlet being connected to the air inlet.The heat exchanger is installed in the shell.Institute
State the air side that tubular wine wheel is installed on the heat exchanger.
The tubular wine wheel includes in the impeller for two end plates of two end plates and connection being oppositely arranged, the impeller
More piece cotyledon wheel including the length direction arrangement along the tubular wine wheel, and the middle section of cotyledon wheel described in connection two adjacent sections
Disk.Wherein, the middle section disk is formed with sound absorption cavity in hollow setting, and the middle section disk has positioned at the sound absorption cavity two sides
Side plate, at least one described side plate have provided sound-absorption hole along the length direction of the tubular wine wheel；Alternatively, the middle section disk is in real
Heart setting, the middle section disk have provided sound-absorption hole along the length direction of the tubular wine wheel
Optionally, the air conditioner indoor unit is wall-hanging air conditioner indoor unit or floor air conditioner indoor machine.
Technical solution of the present invention, connects two neighboring cotyledon wheel by using middle section disk, disk is saved in this, sound-absorbing is arranged
Chamber and/or sound-absorption hole to absorb the noise generated when tubular wine wheel works using sound absorption cavity and/or sound-absorption hole, and then are reduced and are made an uproar
Sound realizes noise reduction.Sound-absorption hole on middle section disk is finer and closely woven, and the acoustic resistance of middle section disk is bigger, and the acoustic mass of middle section disk is smaller, middle section
The ratio between the acoustic resistance of disk and acoustic mass are just higher, so that middle section disk has good high frequency broadband sound absorbing performance.If sharp again
With the resonant frequency of the sound absorption cavity control absorption peak of middle section disk, middle section disk may make to have both high frequency sound absorption and low frequency absorption performance,
Noise reduction effect is significant.
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 existing conventional tubular wine wheel；
Fig. 2 is the structural schematic diagram of an embodiment of tubular wine wheel of the present invention；
Fig. 3 is P in Fig. 21The enlarged drawing at place；
Fig. 4 is the main view of tubular wine wheel in Fig. 2；
Fig. 5 is tubular wine wheel in Fig. 4 along the cross-sectional view of line A-A；
Fig. 6 is P in Fig. 52The enlarged drawing at place；
Fig. 7 is tubular wine wheel in Fig. 4 along the cross-sectional view of line B-B；
Fig. 8 is the main view of another embodiment of tubular wine wheel of the present invention；
Fig. 9 is tubular wine wheel in Fig. 8 along the cross-sectional view of line C-C；
Figure 10 is P in Fig. 93The enlarged drawing at place；
Figure 11 is the main view of the another embodiment of tubular wine wheel of the present invention；
Figure 12 is tubular wine wheel in Figure 11 along the cross-sectional view of line D-D；
Figure 13 is P in Figure 124The enlarged drawing at place；
Figure 14 is the schematic diagram of setting soundproof plate in sound absorption cavity in Figure 13；
Figure 15 is air quantity-noise comparison diagram of tubular wine wheel of the present invention and conventional tubular wine wheel.
Drawing reference numeral explanation:
The object of the invention is realized, the embodiments will be further described with reference to the accompanying drawings for functional characteristics and advantage.
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.
It in addition, the technical solution between each embodiment can be combined with each other, but must be with ordinary skill
Based on personnel can be realized, this technical side will be understood that when the combination of technical solution appearance is conflicting or cannot achieve
The combination of case is not present, also not the present invention claims protection scope within.
Please refer to Fig. 2 and Fig. 3, in an embodiment of tubular wine wheel 10 of the invention, tubular wine wheel 10 includes setting in opposite
The impeller 200 for two end plates 100 of two end plates 100 and connection set.Impeller 200 includes the length direction row along tubular wine wheel 10
The more piece cotyledon wheel 210 of cloth, and the middle section disk 220 of connection two adjacent sections cotyledon wheel 210.
Particularly, end plate 100 is equipped with rotary shaft 110, and rotary shaft 110 is for being connected to motor, rotation is driven by motor
The rotation of 110 impeller 200 of shaft.Impeller 200 may include the cotyledon wheel 210 of two sections or two sections or more, more piece cotyledon wheel 210
It is arranged in concentric annular, two adjacent sections cotyledon wheel 210 is spaced apart by middle section disk 220, so that the inner cavity of every knot impeller 210
It is spaced apart with the inner cavity of remaining cotyledon wheel 210.Every knot impeller 210 includes arranging in a ring along the ring week of tubular wine wheel 10
Multiple blades (seeing Fig. 3 and Fig. 7), interval is formed between the blade that gas supply stream passes through between two blades of arbitrary neighborhood
Gap.
When tubular wine wheel 10 works, the impeller clearance of 200 high speed rotation of impeller and certain driving air-flow from 210 side of cotyledon wheel
The inner cavity of cotyledon wheel 210 is entered, then in the inner cavity rotary squeezing of cotyledon wheel 210, finally from 210 other side of cotyledon wheel
Impeller clearance is thrown away, and realizes certain driving air-flow flowing.In the process, noise caused by every knot impeller 210 is along its axial direction
When propagation, it is corresponding with section disk 220 in one and is blocked.
In consideration of it, noise-reducing structure can be arranged on middle section disk 220, the effect of noise is absorbed with section disk 220 in improvement.For
For middle section disk 220, middle section disk 220 is different from conventional intermediary's ring 230, and middle section disk 220 is circular disk body.Middle section disk 220
Denoising structure has the following two kinds design method:
Please refer to fig. 4 to fig. 6, the first design method of middle section disk 220 are as follows: middle section disk 220 is arranged in hollow to be formed
There is sound absorption cavity 2201, middle section disk 220 has the side plate positioned at 2201 two sides of sound absorption cavity, at least one described side plate is along tubular wine wheel
10 length direction has provided sound-absorption hole 2202.
Sound absorption cavity 2201 is cavity, and sound-absorption hole 2202 is the through-hole being connected to the sound absorption cavity 2201.Tubular wine wheel 10 works
When the noise that generates, entered in sound absorption cavity 2201 by sound-absorption hole 2202, noise sound wave resonates in sound absorption cavity 2201, and
By noise wave absorption.In the process, the sound of noise can gradually decrease, noise by sound-absorption hole 2202 and sound absorption cavity 2201 gradually
It absorbs, and then reduces noise, realize noise reduction.
Please refer to Fig. 8 to Figure 10, second of design method of middle section disk 220 are as follows: middle section disk 220 is in solid setting, middle section
Disk 220 has provided sound-absorption hole 2202 along the length direction of tubular wine wheel 10.That is, sound absorption cavity 2201 it is not necessary to,
Sound-absorption hole 2202 directly runs through two side panel faces of middle section disk 220.This mode may make the length of sound-absorption hole 2202 longer, phase
When in the path that extension noise is propagated in sound-absorption hole 2202, in its communication process, the sound of noise can be gradually decreased also, in turn
Realize noise reduction.
Technical solution of the present invention connects two neighboring cotyledon wheel 210 by using middle section disk 220, and disk 220 is saved in this
Sound absorption cavity 2201 and/or sound-absorption hole 2202 are set, to absorb 10 work of tubular wine wheel using sound absorption cavity 2201 and/or sound-absorption hole 2202
As when the noise that generates, and then reduce noise, realize noise reduction.Sound-absorption hole 2202 on middle section disk 220 is finer and closely woven, middle section disk 220
Acoustic resistance it is bigger, the acoustic mass of middle section disk 220 is smaller, and the acoustic resistance and the ratio between acoustic mass of middle section disk 220 are just higher so that
Middle section disk 220 has good high frequency broadband sound absorbing performance.If the sound absorption cavity 2201 for saving disk 220 in recycling controls absorption peak
Resonant frequency, may make middle section disk 220 to have both high frequency sound absorption and low frequency absorption performance, noise reduction effect is significant.
As indicated above, the structure tool of middle section disk 220 is there are two types of design method, and when practical application can be according to production difficulty or ease journey
Degree and cost are accordingly designed, and it is fixed not limit herein.In order to avoid repeating, in the examples below will with it is aforementioned the first set
Meter mode describes in detail, and second of design method can refer to execution.
Fig. 4 to fig. 6 is please referred to, in one embodiment, only one of them described side plate has provided multiple sound-absorption holes 2202, should
The thickness for providing the side plate of sound-absorption hole 2202 is less than the thickness of another side plate.To be defined herein convenient for illustrating
Two side plates of middle section disk 220 are respectively the first side plate 221 and the second side plate 222.Wherein, the first side plate 221 has provided multiple
Sound-absorption hole 2202, the thickness of the thickness of the first side plate 221 less than the second side plate 222.As shown in fig. 6, H1It is expressed as stating the first side
The thickness of plate 221, H2It is expressed as the thickness of the second side plate 222.
Particularly, the thickness of the first side plate 221 may make the first side plate 221 less than the thickness of the second side plate 222 in this way
Form sound-absorbing porous plate.In noise sound wave when sound absorption cavity 2201 resonates, noise reduction porous plate also resonates, can be into
The sound energy of one step absorption noise.When noise enters sound absorption cavity 2201 through the sound-absorption hole 2202 on the first side plate 221, sound-absorption hole
2202 and sound absorption cavity 2201 so that its sound is reduced the noise absorption.Part sound energy loud noise may penetrate the second side plate 222
It blazes abroad, occurs to reduce such case, by limiting thickness of the thickness less than the second side plate 222 of the first side plate 221, with
Increase the acoustic resistance of the second side plate 222, so that noise is difficult to penetrate the second propagation outward of side plate 222, improves noise reduction efficacy.
Figure 11 to Figure 13 is please referred to, in another embodiment, place unlike the embodiments above is: two side plates
(the first side plate 221 and the second side plate 222) has provided multiple sound-absorption holes 2202, also, the suction on one of them described side plate
Sound hole 2202 is in shift to install with the sound-absorption hole 2202 on side plate described in another.That is, the first side plate 221 and second side
The thickness of plate 222 has provided multiple sound-absorption holes 2202.Make middle section disk 220 to two sub- impellers for being located at its two sides in this way
210 rotate generated noise carries out noise reduction simultaneously.
Since the sound-absorption hole 2202 in the sound-absorption hole 2202 and the second side plate 222 on the first side plate 221 misplaces, so that from the
The noise sound wave that sound-absorption hole 2202 on side plate 221 passes through cannot be penetrated directly from the sound-absorption hole 2202 on the second side plate 222
It goes out, but is stopped by the plate face without sound-absorption hole 2202 on the second side plate 222 and terminate in sound absorption cavity 2201, finally by inhaling
Sound chamber 2201 absorbs.
Figure 14 is please referred to, in another embodiment, place unlike the embodiments above is: two side plates (first
Side plate 221 and the second side plate 222) provide multiple sound-absorption holes 2202；Soundproof plate 223 is additionally provided in sound absorption cavity 2201, it is described
Sound absorption cavity 2201 is separated into two sub- cavitys by soundproof plate 223, two sub- cavitys respectively with the suction on two side plates
Sound hole 2202 is connected to.
For convenient for illustrating, two sub- cavitys are respectively the first sub- sub- cavity 2201b of cavity 2201a and second, first
Sub- cavity 2201a is connect with the sound-absorption hole 2202 on the first side plate 221, the suction on the second sub- cavity 2201b and the second side plate 222
Sound hole 2202 connects.The noise sound wave passed through from the sound-absorption hole 2202 on the first side plate 221 enters the first sub- cavity 2201a
In, by the barrier effect of soundproof plate 223, this partial noise is difficult to penetrate soundproof plate 223 and pass to the other side of middle section disk 220
It broadcasts, can only finally be absorbed by the first sub- cavity 2201a.Similarly, the noise of the other side of middle section disk 220 is then by the second sub- cavity
2201b absorbs.
Fig. 4 to fig. 6 is please referred to, above-mentioned any one embodiment is based on, for providing side plate (the i.e. sound-absorbing micropore of sound-absorption hole
Thin plate) for, the relative sound impedance of single sound-absorption hole and the thickness of side plate are related.Side plate thickness is bigger, and specific acoustic impedance is larger,
Acoustic mass is small, and acoustic resistance is relatively high with acoustic mass, and middle section disk 220 may make to have preferable high frequency broadband sound absorbing performance.But
Side plate thickness is bigger, in the case where middle section disk 220 is certain, can accordingly reduce the volume of sound absorption cavity 2201, be unfavorable for noise reduction.
Therefore, it limits herein, provides the thickness of the side plate (the first side plate 221 and/or the second side plate 222) of sound-absorption hole 2202
Degree not less than 0.1mm and be not more than 2mm, such as, but not limited to: 0.2mm, 0.5mm, 0.8mm, 1.0mm, 1.2mm, 1.5mm,
1.8mm waiting.In the case, single sound-absorption hole has preferable relative sound impedance, and then it is whole to improve sound-absorbing porous plate
Specific acoustic impedance, improve sound-absorbing porous plate normal incidence sound absorption coefficient.
Further, it is also possible to by the plate for the side plate (the first side plate 221 and/or the second side plate 222) for providing sound-absorption hole 2202
Face is in be arranged to the cancave cambered surface of depressed side board described in another.In this way, not only can be in order to which noise sound wave be from sound-absorption hole
2202 enter the absorption of sound absorption cavity 2201, and the plate face of the side plate can be made consistent with the streamline of air-flow, reduce windage, and being convenient for will
Air-flow exports outward from impeller clearance in 210 inner cavity of cotyledon wheel.
It theoretically gets on very well, the sound-absorption hole 2202 on sound-absorbing microwell plate is finer and closely woven, and middle section disk 220 can get better high bandwidth
Frequency band sound absorbing performance.Obviously, the shape size of sound-absorption hole 2202 and concentration will affect sound-absorbing efficiency.Here, for
The shape and structure of sound-absorption hole 2202, sound-absorption hole 2202 can be round hole or square hole or bar shaped slit.
When sound-absorption hole 2202 is round hole or square hole, the aperture of sound-absorption hole 2202 not less than 0.1mm and is not more than
2.5mm, such as, but not limited to: 0.2mm, 0.5mm, 0.8mm, 1.0mm, 1.2mm, 1.5mm, 1.8mm, 2.0mm, 2.2mm,
2.4mm waiting.It should be noted that the aperture of sound-absorption hole 2202 should be understood as diameter herein.
When sound-absorption hole 2202 is bar shaped slit, multiple told bar shaped slits can be in put from the center of side plate to its circumferential direction
Penetrate shape arrangement.At this point, the width of sound-absorption hole 2202 is not less than 0.1mm and is not more than 2.5mm, such as, but not limited to: 0.2mm,
0.5mm, 0.8mm, 1.0mm, 1.2mm, 1.5mm, 1.8mm, 2.0mm, 2.2mm, 2.4mm etc..
For the concentration of sound-absorption hole on sound-absorbing microwell plate, sound-absorption hole 2202 can not infinitely increase, otherwise fine and close hole
Gap can destroy in save disk 220 structure, instead reduce in save disk 220 anti-acoustic capability.For this purpose, being directed to the hole of middle section disk 220
Influence of the rate to anti-acoustic capability is tested.Test obtains, saves the side plate (first for providing sound-absorption hole 2202 of disk 220 in the middle
Side plate 221 and/or the second side plate 222) sound-absorption hole 2202 of the porosity not less than 0.1% and when being not more than 20%, on side plate
It can be distributed more uniform, and maintain preferable spacing, so that middle section disk 220 has preferable high frequency broadband sound absorption properties
Can, and the structure that disk 220 is saved in guarantee is not destroyed by fine and close hole.
Therefore it is based on above-mentioned test, in embodiment, the porosity for limiting the side plate for providing sound-absorption hole 2202 is not less than
0.1% and be not more than 20%, such as, but not limited to: 1%, 2%, 5%, 8%, 10%, 12%, 15%, 18%, 20% etc..
Please continue to refer to fig. 4 to fig. 6, further, is further absorbed and made an uproar using sound absorption cavity 2201 in view of middle section disk 220
The resonant frequency of control absorption peak can be absorbed in sound, sound absorption cavity 2201.And sound absorption cavity 2201 is bigger, noise sound wave is in sound absorption cavity
Resonant frequency in 2201 is lower, and middle section disk 220 may make to have both high frequency sound absorption and low frequency absorption performance, sound absorption effect in this way
Significantly.But correspondingly, sound absorption cavity 2201 is bigger, and the volume of middle section disk 220 also increases accordingly, and occupies the biggish sky of tubular wine wheel 10
Between, and then the air quantity that will lead to tubular wine wheel 10 is reduced.
It is tested for this purpose, being directed to influence of the depth of the sound absorption cavity 2201 of middle section disk 220 to anti-acoustic capability.Such as Fig. 6 institute
Show, S is expressed as depth of the sound absorption cavity 2201 on the length direction of tubular wine wheel 10.Test obtains, when sound absorption cavity 2201 is passing through
The depth on the length direction of wind wheel 10 is flowed not less than 1mm and when being not more than 100mm, noise sound wave being total in sound absorption cavity 2201
Vibration frequency is lower, and the normal incidence sound absorption coefficient of sound-absorbing porous plate is larger, and the efficiency that sound absorption cavity 2201 absorbs noise increases
Add.Also, the volume of section disk 220 is also relatively mild at this time, is unlikely to occupy the biggish space of tubular wine wheel 10.
Therefore in embodiment, limit depth of the sound absorption cavity 2201 on the length direction of tubular wine wheel 10 not less than 1mm and
No more than 100mm, such as, but not limited to: 5mm, 10mm, 20mm, 30mm, 40mm, 50mm, 60mm, 70mm, 80mm, 90mm
Deng.To improve noise reduction effect, sound-absorbing material can also be filled in sound absorption cavity 2201.The sound-absorbing material can be but unlimited
In: nano-multilayered structures material, porous material, acoustical cotton, polyurethane foam plastics etc..
For the noise reduction effect for verifying tubular wine wheel of the present invention, tubular wine wheel of the present invention and conventional tubular wine wheel are compared
Test.In the comparative test, the middle section disk of tubular wine wheel of the present invention has sound absorption cavity and sound-absorption hole, other parameters difference
Are as follows: the aperture of sound-absorption hole is 0.5mm, sound-absorbing porous plate with a thickness of 0.8mm, sound absorption cavity 25mm, porosity 0.7%.
Tubular wine wheel of the present invention is tested under the same test conditions with conventional tubular wine wheel, draws to obtain such as figure according to test data
Air quantity shown in 15-noise comparison diagram.As seen from Figure 15, under the same test conditions, relative to conventional tubular wine wheel and
Speech, the noise of tubular wine wheel of the present invention can averagely reduce 2.3dBA, even as high as 3dBA.
Based on above-mentioned any one embodiment, other than sound-absorption hole 2202 is set on the middle section disk 220 in tubular wine wheel 10,
Multiple sound-absorption holes 2202 can also be set in the end plate 100 of tubular wine wheel 10, to absorb using the sound-absorption hole 2202 on end plate 100
The noise at 10 both ends of tubular wine wheel improves noise reduction efficacy.
The present invention also provides a kind of air conditioner indoor unit, the air conditioner indoor unit includes shell, heat exchanger and tubular wine wheel 10.
Wherein, the air outlet that the shell is equipped with air inlet and is connected to the air inlet.The heat exchanger is installed in the shell.
Tubular wine wheel 10 is installed on the air side of the heat exchanger.The specific structure of tubular wine wheel 10 is referring to above-described embodiment, due to this
Air conditioner indoor unit uses whole technical solutions of above-mentioned all embodiments, therefore the same technical solution with above-described embodiment
Brought all beneficial effects, this is no longer going to repeat them.
Optionally, the air conditioner indoor unit is wall-hanging air conditioner indoor unit or floor air conditioner indoor machine.
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 (13)
1. a kind of tubular wine wheel, which is characterized in that the tubular wine wheel includes in two end plates and connection two being oppositely arranged
The impeller of the end plate, the impeller include the more piece cotyledon wheel arranged along the length direction of the tubular wine wheel, and connection
The middle section disk of cotyledon wheel described in two adjacent sections；Wherein,
The middle section disk is formed with sound absorption cavity in hollow setting, and the middle section disk has positioned at the side of the sound absorption cavity two sides
Plate, at least one described side plate have provided sound-absorption hole along the length direction of the tubular wine wheel；Alternatively, the middle section disk is in solid
Setting, the middle section disk have provided sound-absorption hole along the length direction of the tubular wine wheel.
2. tubular wine wheel as described in claim 1, which is characterized in that only one of them described side plate has provided multiple sound-absorbings
Hole, the thickness for providing the side plate of sound-absorption hole are less than the thickness of another side plate.
3. tubular wine wheel as described in claim 1, which is characterized in that two side plates have provided multiple sound-absorption holes；Institute
It states and is additionally provided with soundproof plate in sound absorption cavity, the sound absorption cavity is separated into two sub- cavitys, two sub- cavitys by the soundproof plate
It is connected to respectively with the sound-absorption hole on two side plates.
4. tubular wine wheel as described in claim 1, which is characterized in that two side plates have provided multiple sound-absorption holes, and
And the sound-absorption hole on one of them described side plate is in shift to install with the sound-absorption hole on side plate described in another.
5. the tubular wine wheel as described in Claims 1-4 any one, which is characterized in that this provides the side plate of sound-absorption hole
Thickness is not less than 0.1mm and is not more than 2mm.
6. the tubular wine wheel as described in Claims 1-4 any one, which is characterized in that provide the hole of the side plate of sound-absorption hole
Gap rate is not less than 0.1% and is not more than 20%.
7. the tubular wine wheel as described in Claims 1-4 any one, which is characterized in that the sound absorption cavity is in the through-flow wind
Depth not less than 1mm and is not more than 100mm on the length direction of wheel.
8. the tubular wine wheel as described in Claims 1-4 any one, which is characterized in that the sound-absorption hole is round hole or side
Shape hole or bar shaped slit.
9. tubular wine wheel as claimed in claim 8, which is characterized in that described when the sound-absorption hole is round hole or square hole
The aperture of sound-absorption hole is not less than 0.1mm and is not more than 2.5mm；Alternatively, when the sound-absorption hole is bar shaped slit, the sound-absorption hole
Width is not less than 0.1mm and is not more than 2.5mm.
10. the tubular wine wheel as described in Claims 1-4 any one, which is characterized in that be filled with sound-absorbing in the sound absorption cavity
Material.
11. the tubular wine wheel as described in Claims 1-4 any one, which is characterized in that the end plate has provided multiple sound-absorbings
Hole.
12. a kind of air conditioner indoor unit, which is characterized in that the air conditioner indoor unit includes:
Shell, the air outlet that the shell is equipped with air inlet and is connected to the air inlet；
Heat exchanger, the heat exchanger are installed in the shell；And
Tubular wine wheel as described in claim 1 to 11 any one, the tubular wine wheel are installed on the outlet air of the heat exchanger
Side.
13. air conditioner indoor unit as claimed in claim 12, which is characterized in that the air conditioner indoor unit is in wall-hanging air conditioner room
Machine or floor air conditioner indoor machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910733572.3A CN110360656B (en) | 2019-08-08 | Cross flow wind wheel and air conditioner indoor unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910733572.3A CN110360656B (en) | 2019-08-08 | Cross flow wind wheel and air conditioner indoor unit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110360656A true CN110360656A (en) | 2019-10-22 |
| CN110360656B CN110360656B (en) | 2024-05-28 |
Family
ID=
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| JP2006329099A (en) * | 2005-05-27 | 2006-12-07 | Daikin Ind Ltd | Cross flow fan |
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| CN106286387A (en) * | 2016-09-30 | 2017-01-04 | 中国科学院光电研究院 | A kind of excimer laser cross flow blower impeller of effective reduction noise |
| CN110043512A (en) * | 2019-05-22 | 2019-07-23 | 宁波奥克斯电气股份有限公司 | Through-flow fan blade, bearing fixed seat, fan assembly and air conditioner |
| CN210373774U (en) * | 2019-08-08 | 2020-04-21 | 广东美的制冷设备有限公司 | Cross flow wind wheel and air conditioner indoor unit |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06137295A (en) * | 1992-10-29 | 1994-05-17 | Daikin Ind Ltd | Cross flow fan |
| JPH11280688A (en) * | 1998-03-31 | 1999-10-15 | Toshiba Corp | Transversal flow fan |
| JP2006329099A (en) * | 2005-05-27 | 2006-12-07 | Daikin Ind Ltd | Cross flow fan |
| CN106015087A (en) * | 2016-07-21 | 2016-10-12 | 美的集团武汉制冷设备有限公司 | Cross-flow wind wheel, cross-flow fan and air conditioner indoor unit |
| CN106286387A (en) * | 2016-09-30 | 2017-01-04 | 中国科学院光电研究院 | A kind of excimer laser cross flow blower impeller of effective reduction noise |
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| CN210373774U (en) * | 2019-08-08 | 2020-04-21 | 广东美的制冷设备有限公司 | Cross flow wind wheel and air conditioner indoor unit |
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