CN109595690A - Air conditioner indoor unit and air conditioner - Google Patents
Air conditioner indoor unit and air conditioner Download PDFInfo
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- CN109595690A CN109595690A CN201811420943.4A CN201811420943A CN109595690A CN 109595690 A CN109595690 A CN 109595690A CN 201811420943 A CN201811420943 A CN 201811420943A CN 109595690 A CN109595690 A CN 109595690A
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- volute tongue
- wind wheel
- air
- air conditioner
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- ONUFESLQCSAYKA-UHFFFAOYSA-N iprodione Chemical compound O=C1N(C(=O)NC(C)C)CC(=O)N1C1=CC(Cl)=CC(Cl)=C1 ONUFESLQCSAYKA-UHFFFAOYSA-N 0.000 claims abstract description 5
- 238000005452 bending Methods 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000012795 verification Methods 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
- 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
- F24F13/30—Arrangement or mounting of 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
- F24F13/24—Means for preventing or suppressing noise
- F24F2013/247—Active noise-suppression
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The present invention discloses a kind of air conditioner indoor unit and air conditioner, wherein air conditioner indoor unit includes shell, cross flow fan and heat exchanger, and shell is equipped with air inlet and air outlet；Cross flow fan includes spiral case wind wheel, and spiral case includes air duct upper wall and air duct lower wall, and air duct upper wall is formed with preceding volute tongue；On the cross section of cross flow fan, the preceding arc-shaped curve setting of volute tongue, the diameter for defining the outer rim of wind wheel is D0, the center of circle for defining wind wheel is point O, point Ai(i=1~n) is to be located at A on preceding volute tongue curve1And AnSeveral points, AnFor the starting point of the free end of preceding volute tongue, A1For the last point of preceding volute tongue, line segment AiBiIndicate point AiWith the vertical range of wind wheel；The lowest distance value for defining wind wheel and preceding volute tongue is δ, δ=Min { A1B1, A2B2, A3B3... AiBi…AnBn, 0.035D0≤δ≤0.065D0, and δ < A1B1.Technical solution of the present invention is able to ascend the working efficiency of cross flow fan, reduces noise.
Description
Technical field
The present invention relates to blower technical field, in particular to a kind of air conditioner indoor unit and air conditioner.
Background technique
Cross flow fan is called crossflow fan, and impeller is multi-blade type, oval tubular, has forward multiple wing shape blade.Impeller rotation
When turning, air-flow enters leaf grating from the impeller place of opening wide, and passes through impeller internal, is discharged from another side leaf grating, forms working air current.It passes through
It flows under wind wheel working condition, air-flow radial through blade, forms an eccentric vortex on the inside of wind wheel twice at nearby volute tongue.Partially
The presence of vortex cordis makes impeller output end generate recycle stream, unreasonable to the control of Cross Flow Fan eccentric vortex at present, causes to pass through
Flow fan efficiency is generally relatively low, while the noise generated is larger.
Above content is only used for the technical solution that auxiliary understands the application, does not represent and recognizes that above content is existing skill
Art.
Summary of the invention
The main object of the present invention is to provide a kind of air conditioner indoor unit, it is intended to promote the working efficiency of air conditioner indoor unit, drop
Low noise.
To achieve the above object, air conditioner indoor unit proposed by the present invention, including shell, the through-flow wind being disposed in the housing
Machine and the heat exchanger being disposed in the housing, the shell are equipped with air inlet and air outlet, the cross flow fan and described change
Hot device is between the air inlet and air outlet；
The cross flow fan includes spiral case and is set to wind wheel in the spiral case, and the spiral case includes under air duct upper wall and air duct
Wall forms connection exhaust air flue between the air duct upper wall and air duct lower wall, the air duct upper wall is close to the one of the air inlet
End bending is formed with preceding volute tongue, and the preceding volute tongue extends towards the air inlet, and the direction for being directed away from wind wheel is extended；
On the cross section of the cross flow fan, the preceding arc-shaped curve setting of volute tongue defines the outer rim of the wind wheel
Diameter be D0, the center of circle for defining the wind wheel is point O, point Ai(i=1~n) is to be located at A on preceding volute tongue curve1And AnIt is several
It is a, AnFor the starting point of the free end of preceding volute tongue, A1For the last point of preceding volute tongue, line segment AiBiIndicate point AiIt is vertical with wind wheel away from
From intersection point point is Bi；
The lowest distance value for defining wind wheel and preceding volute tongue is δ, δ=Min { A1B1, A2B2, A3B3... AiBi…AnBn,
0.035D0≤δ≤0.065D0, and δ < A1B1。
In the embodiment of the application, the distance value of the wind wheel and preceding volute tongue is from point A1To point AnIt is set in being gradually reduced
It sets.
In the embodiment of the application, in point A1To point AnDirection on adjoining two o'clock be AkAnd Ak+1, 1.005≤
AkBk/Ak+1Bk+1≤ 1.110, (k=1,2,3 ..., n-1).
In the embodiment of the application, the distance value of the wind wheel and preceding volute tongue is from point A1To point AnIn being gradually reduced again
It is gradually increased setting.
In the embodiment of the application, the point of the lowest distance value between the preceding volute tongue curve and the wind wheel is
Amin, the last point A of the preceding volute tongue1With the point AminBetween curve correspond to the wind wheel center of circle and form end packet sweep angle β1, institute
The starting point A of volute tongue before statingnWith the point AminBetween curve correspond to the wind wheel center of circle and form front end packet sweep angle β2, 0.55≤
β1/β2≤3.65。
In the embodiment of the application, the last point A of the preceding volute tongue1The distance between described wind wheel value is greater than described
The last point A of preceding volute tonguenThe distance between described wind wheel value.
In the embodiment of the application, the point AnIn the lower section for the horizontal plane for crossing O point.
In the embodiment of the application, the free end starting point A of the preceding volute tonguenBetween the line and horizontal plane of O point
Angle α value range are as follows: 30 °≤α≤70 °.
In the embodiment of the application, the development length of the preceding volute tongue, which corresponds to the wind wheel center of circle and is formed by packet, is plunderred
The value range of angle beta are as follows: 15 °≤β≤40 °.
The present invention also provides a kind of air conditioner, including air conditioner indoor unit, includes shell in the air conditioning chamber, is set to the shell
Intracorporal cross flow fan and the heat exchanger being disposed in the housing, the shell are equipped with air inlet and air outlet, the through-flow
Blower and the heat exchanger are between the air inlet and air outlet；
The cross flow fan includes spiral case and is set to wind wheel in the spiral case, and the spiral case includes under air duct upper wall and air duct
Wall forms connection exhaust air flue between the air duct upper wall and air duct lower wall, the air duct upper wall is close to the one of the air inlet
End bending is formed with preceding volute tongue, and the preceding volute tongue extends towards the air inlet, and the direction for being directed away from wind wheel is extended；
On the cross section of the cross flow fan, the preceding arc-shaped curve setting of volute tongue defines the outer rim of the wind wheel
Diameter be D0, the center of circle for defining the wind wheel is point O, point Ai(i=1~n) is to be located at A on preceding volute tongue curve1And AnIt is several
It is a, AnFor the starting point of the free end of preceding volute tongue, A1For the last point of preceding volute tongue, line segment AiBiIndicate point AiIt is vertical with wind wheel away from
From intersection point point is Bi；
The lowest distance value for defining wind wheel and preceding volute tongue is δ, δ=Min { A1B1, A2B2, A3B3... AiBi…AnBn,
0.035D0≤δ≤0.065D0, and δ < A1B1。
Technical solution of the present invention is by setting arc for preceding volute tongue, and when generating eccentric vortex, the air-flow of eccentric vortex can
More windage smoothly is reduced for passing through at preceding volute tongue.So that eccentric vortex is formed close at preceding volute tongue.Then, into one
Step is by the way that the lowest distance value δ between wind wheel and preceding volute tongue to be arranged are as follows: 0.035D0≤δ≤0.065D0, δ is in the value model
In enclosing, when δ value is more than 0.065D0When, conference is crossed because of the gap between wind wheel and preceding volute tongue and makes airflow leaks serious, leads to wind
Amount decaying.When δ value is less than 0.035D0When, cause level of noise higher because the gap between wind wheel and preceding volute tongue is too small, when serious
Howling can be generated.Therefore, circulation efficiency, air quantity and the noise by comprehensive consideration air-flow near preceding volute tongue, is set as
0.035D0≤δ≤0.065D0.Such as it is set as 0.035D0、0.04D0、0.045D0、0.05D0、0.06D0、0.065D0.Meanwhile
By δ < A1B1, A1Minimum clearance δ is set smaller than this time at the passway of preceding volute tongue return air for the last point of preceding volute tongue
The gap width of wind passway, it is more smoothly also for airflow is made, it prevents from generating at the passway of preceding volute tongue return air
It hinders to form noise.In this way, the technical solution of the application is able to ascend the working efficiency of cross flow fan, noise is reduced.
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 one embodiment of air conditioner indoor unit of the present invention；
Fig. 2 is the structural schematic diagram of one embodiment of cross flow fan of the present invention；
Fig. 3 is the structural schematic diagram of another embodiment of cross flow fan of the present invention.
Drawing reference numeral explanation:
| Label | Title | Label | Title |
| 100 | Air conditioner indoor unit | 11b | Air duct lower wall |
| 10 | Cross flow fan | 13 | Preceding volute tongue |
| 10a | Air inlet | 15 | Wind wheel |
| 10b | Air outlet | 30 | Shell |
| 11 | Spiral case | 50 | Heat exchanger |
| 11a | Air duct upper wall |
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 the directional instruction (such as up, down, left, right, before and after ...) of institute is only used in the embodiment of the present invention
In explaining in relative positional relationship, the motion conditions etc. under a certain particular pose (as shown in the picture) between each component, if should
When particular pose changes, then directionality instruction also correspondingly changes correspondingly.
In the present invention unless specifically defined or limited otherwise, term " connection ", " fixation " etc. shall be understood in a broad sense,
For example, " fixation " may be a fixed connection, it may be a detachable connection, or integral；It can be mechanical connection, be also possible to
Electrical connection；It can be directly connected, the connection inside two elements or two can also be can be indirectly connected through an intermediary
The interaction relationship of a element, unless otherwise restricted clearly.It for the ordinary skill in the art, can basis
Concrete condition understands the concrete meaning of above-mentioned term in the present invention.
In addition, the description for being such as related to " first ", " second " in the present invention is used for description purposes only, and should not be understood as
Its relative importance of indication or suggestion or the quantity for implicitly indicating indicated technical characteristic.Define as a result, " first ",
The feature of " second " can explicitly or implicitly include at least one of the features.In addition, the technical side between each embodiment
Case can be combined with each other, but must be based on can be realized by those of ordinary skill in the art, when the combination of technical solution
Conflicting or cannot achieve when occur will be understood that the combination of this technical solution is not present, also not the present invention claims guarantor
Within the scope of shield.
The present invention proposes a kind of air conditioner indoor unit 100.The air conditioner indoor unit 100 can be wall-hanger, can also be vertical cabinet-type air conditioner.
Referring to figs. 1 to 2, in one embodiment of this invention, cross flow fan 10 including shell 30, in shell 30,
And the heat exchanger 50 in shell 30, shell 30 are equipped with air inlet 10a and air outlet 10b, cross flow fan 10 and heat exchanger
50 between air inlet 10a and air outlet 10b；
Cross flow fan 10 includes spiral case 11 and the wind wheel 15 in spiral case 11, and spiral case 11 includes air duct upper wall 11a and wind
Road lower wall 11b forms connection exhaust air flue between air duct upper wall 11a and air duct lower wall 11b, air duct upper wall 11a is close to air inlet
One end bending of 10a is formed with preceding volute tongue 13, and preceding volute tongue 13 extends towards the air inlet, and is directed away from the direction of wind wheel 15
It is extended；
The cross flow fan 10 includes spiral case 11, preceding volute tongue 13 and wind wheel 15, shape between the spiral case 11 and preceding volute tongue 13
At having air inlet 10a and air outlet 10b, the wind wheel 15 is between the air inlet 10a and the air outlet 10b；
On the cross section of the cross flow fan 10, the setting of preceding volute tongue 13 arc-shaped curve defines the outer of the wind wheel 15
The diameter of edge is D0, the center of circle for defining the wind wheel 15 is point O, point Ai(i=1~n) is several on preceding 13 surface of volute tongue
Point, AnFor the starting point of the free end of preceding volute tongue 13, A1For the last point of preceding volute tongue 13, line segment AiBiIndicate point AiIt is vertical with wind wheel 15
Distance, intersection point point are Bi；
The lowest distance value for defining wind wheel 15 and preceding volute tongue 13 is δ, δ=Min { A1B1, A2B2, A3B3... AiBi…AnBn,
0.035D0≤δ≤0.065D0, and δ < A1B1。
Line segment AiBiIndicate point AiWith the vertical range of wind wheel 15, intersection point point is Bi, point O, B known to geometric knowledgei、Ai?
On same straight line, and AiBiThe point A of as preceding volute tongue 13iTo the minimum range of 15 outer rim of wind wheel.
Technical solution of the present invention is by setting arc for preceding volute tongue 13, when generating eccentric vortex, the air-flow energy of eccentric vortex
It is enough more smoothly to supply at preceding volute tongue 13 to pass through, reduce windage.So that eccentric vortex is formed close at preceding volute tongue 13.So
Afterwards, further by the way that the lowest distance value δ between wind wheel 15 and preceding volute tongue 13 to be arranged are as follows: 0.035D0≤δ≤0.065D0, δ
In the value range, when δ value is more than 0.065D0When, conference, which is crossed, because of the gap between wind wheel 15 and preceding volute tongue 13 makes air-flow
Leakage is serious, and air quantity is caused to be decayed.When δ value is less than 0.035D0When, it is led because the gap between wind wheel 15 and preceding volute tongue 13 is too small
It causes level of noise higher, howling can be generated when serious.Therefore, the circulation effect by comprehensive consideration air-flow near preceding volute tongue 13
Rate, air quantity and noise, are set as 0.035D0≤δ≤0.065D0.Such as it is set as 0.035D0、0.04D0、0.045D0、
0.05D0、0.06D0、0.065D0.Meanwhile by δ < A1B1, A1For the last point of preceding volute tongue 13, positioned at the channel of preceding 13 return air of volute tongue
At mouthful, minimum clearance δ is set smaller than to the gap width of the return air channel mouth, it is more smoothly also for airflow is made,
It prevents from generating at the passway of preceding 13 return air of volute tongue and hinders to form noise.In this way, the technical solution of the application can mention
The working efficiency of cross flow fan 10 is risen, noise is reduced.
In conjunction with referring to Fig. 2, in the embodiment of the application, the distance value of wind wheel 15 and preceding volute tongue 13 is from point A1To point An
It is arranged in being gradually reduced.
Also it can be expressed as: A1B1> A2B2> A3B3> ... AiBi> ... AnBn。A1B1Positioned at the logical of preceding 13 return air of volute tongue
At road junction, wind-force is stronger at the passway of preceding 13 return air of volute tongue, therefore, by A1B1It is set as maximum, then wind-force is decayed step by step,
Distance value also gradually becomes smaller, until AnBnDistance value it is minimum, as 0.035D0≤ δ=AnBn≤0.065D0。
Further, in point A1To point AnDirection on adjoining two o'clock be AkAnd Ak+1, 1.005≤AkBk/Ak+1Bk+1≤
1.110, (k=1,2,3 ..., n-1).
That is, 1.005Ak+1Bk+1≤AkBk≤1.11Ak+1Bk+1, that is, two sections adjacent of distance value is not easy to differ
Greatly, AkBk> 1.11Ak+1Bk+1The variation of distance value is excessive, causes air output uneven and generates noise.Two sections adjacent of distance
Value is not easy to differ too small, too small AkBk< 1.005Ak+1Bk+1The variation of distance value is too small, can not effective wind-guiding so that before entire
The length of volute tongue increases.Therefore it is set as 1.005Ak+1Bk+1≤AkBk≤1.11Ak+1Bk+1, such as AkBkEqual to 1.005Ak+ 1Bk+1、1.01Ak+1Bk+1、1.055Ak+1Bk+1、1.1Ak+1Bk+1、1.11Ak+1Bk+1, 13 He of volute tongue before which can guarantee
15 gap transition of wind wheel is uniform, it is ensured that the reliability of sound quality.
It may be arranged as in another embodiment of the application in conjunction with referring to Fig. 3: the wind wheel 15 and preceding volute tongue 13
Distance value from point A1To point AnIt is gradually increased setting again in being gradually reduced.
Also it can be expressed as: A1B1> A2B2> A3B3> ... AiBi< ... AnBn。A1B1Positioned at the logical of preceding 13 return air of volute tongue
At road junction, wind-force is stronger at the passway of preceding 13 return air of volute tongue, therefore, by A1B1It is set as maximum, then wind-force is decayed step by step,
Distance value also gradually becomes smaller, until AiBiDistance value it is minimum, as 0.035D0≤ δ=AiBi≤0.065D0.Then again by AiBiExtremely
AnBnIt is set as distance value in section to be gradually increased, preceding 13 curve of volute tongue can effectively reduce tonal noise, reduction is made an uproar under the rule
The sharpness of sound improves air-supply sound quality.
Further, the point of the lowest distance value between preceding 13 curve of volute tongue and wind wheel 15 is Amin, the last point A of preceding volute tongue1
With point AminBetween curve correspond to the wind wheel center of circle formed end packet sweep angle β1, the starting point A of preceding volute tonguenWith point AminBetween curve
The corresponding wind wheel center of circle forms front end packet sweep angle β2, 0.55≤β1/β2≤3.65。
That is, ∠ A1OAminWith ∠ AnOAminRatio range meet 0.55 to 3.65.As end packet sweep angle β1It is wrapped with front end
Sweep angle β2Ratio it is too small, when less than 0.55, then before volute tongue it is too short to the distance between smallest point from end point, then air-flow passes through last
Point A1When return air, speed can be promoted suddenly, increase noise.As end packet sweep angle β1With front end packet sweep angle β2Ratio it is excessive, be less than
When 3.65, then preceding volute tongue is too short the distance between from starting point to smallest point, then when such air-flow passes through, can not be effectively reduced and make an uproar
Sound.Therefore it is set as 0.55≤β1/β2≤ 3.65, such as β1Equal to 0.55 β2、0.6β2、0.65β2、β2、2β2、2.5β2、3β2、
3.5β2、3.65β2。
Further, the last point A of preceding volute tongue 131The distance between wind wheel 15 value is greater than the last point A of the preceding volute tongue 13n
The distance between described wind wheel 14 value.Namely A1B1The distance between value be greater than AnBnThe distance between value.Air-flow is passing through A1
To AiAfter section accelerates, further through AiTo AnDuan Jinhang reduction of speed, at this time to reduce noise, while by AnBnDistance value be less than A1B1It
Between distance value enough be effectively vortexed of wind power energy can be made to bring back at air outlet 10b.
When wind wheel 15 works, the process of air-flow volute tongue 13 before impact is entire can play buffer function, effectively reduce
Gas-flow resistance, while the position of eccentric vortex can be closer to preceding volute tongue 13, the regurgitant volume at air outlet 10b is reduced, increase air quantity,
Promote heat transfer effect.
In conjunction with Fig. 1 to Fig. 3, in the embodiment of the application, point AnIn the lower section for the horizontal plane for crossing O point.
So set, namely preceding volute tongue 13 entirety 15 center of wind wheel horizontal plane lower section, formed eccentric vortex
When, closer to preceding volute tongue 13, the regurgitant volume at air outlet 10b is reduced eccentric vortex, increases air quantity, promotes heat transfer effect.
In the embodiment of the application, the free end starting point A of preceding volute tongue 13nWith the line of O point and the horizontal plane of O point excessively
Between angle α value range are as follows: 30 °≤α≤70 °.Referring to Fig. 2, the horizontal plane of O point and the outer rim of the wind wheel 15 were defined
Intersection point be C point, it can be understood as ∠ COAnFor α, 30 °≤α≤70 °.
The position also for control eccentric vortex is arranged such, when α is less than 30 °, eccentric vortex is far from air outlet 10b, outlet air
Resistance increases.When α is greater than 70 °, eccentric vortex can closely upset passing through for primary air apart from air outlet 10b excessively.Therefore, 30 ° are set as
≤ α≤70 °, such as 30 °, 35 °, 40 °, 50 °, 60 °, 70 °.
In the embodiment of the application, the development length of preceding volute tongue 13 corresponds to 15 center of circle of wind wheel and is formed by packet sweep angle β
Value range are as follows: 15 °≤β≤40 °.It can be understood as ∠ A1OAnFor β, 15 °≤β≤40 °.
The position also for control eccentric vortex is arranged such, packet sweep angle β value is bigger, and the length of corresponding preceding volute tongue 13 is got over
Long, because eccentric vortex is generated mainly around at preceding volute tongue 13, when β is more than 40 °, the eccentric vortex of generation is larger, reduces air outlet 10b
The gas output at place.β value is smaller, then can not effectively guide air-flow when β value is less than 15 °, and be easy to produce noise.Therefore, it is set as
15 °≤β≤40 °, such as 15 °, 20 °, 25 °, 30 °, 35 °, 40 °.
It is understood that in this application, above-mentioned parameter may be used in combination, it can be effectively reduced that wind wheel 15 is discrete to make an uproar
Sound weakens the sharpness of noise, improves the sound quality integrally blown, and control eccentric vortex is located closer to preceding volute tongue 13, promotes wind
Amount, gives full play to whole air duct performance.The existing preceding volute tongue 13 of contrast verification and volute tongue 13 before the present invention, mention with revolving speed downdraft
Rise 45m3/ h declines 1.3dB with noise under air quantity.
The present invention also proposes a kind of air conditioner, which includes air conditioner indoor unit 100, the tool of the air conditioner indoor unit 100
Body structure is referring to above-described embodiment, since this air conditioner indoor unit 100 uses whole technical solutions of above-mentioned all embodiments, because
This at least has all beneficial effects brought by the technical solution of above-described embodiment, and this is no longer going to repeat them.The air conditioner
Further include air-conditioner outdoor unit, is connect with air conditioner indoor unit 100 by medium circulation pipeline and conducting wire.
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 (10)
1. a kind of air conditioner indoor unit, which is characterized in that including shell, the cross flow fan being disposed in the housing and be set to institute
The intracorporal heat exchanger of shell is stated, the shell is equipped with air inlet and air outlet, and the cross flow fan and the heat exchanger are located at described
Between air inlet and air outlet；
The cross flow fan includes spiral case and the wind wheel in the spiral case, and the spiral case includes under air duct upper wall and air duct
Wall forms connection exhaust air flue between the air duct upper wall and air duct lower wall, the air duct upper wall is close to the one of the air inlet
End bending is formed with preceding volute tongue, and the preceding volute tongue extends towards the air inlet, and the direction for being directed away from wind wheel is extended；
On the cross section of the cross flow fan, the preceding arc-shaped curve setting of volute tongue defines the straight of the outer rim of the wind wheel
Diameter is D0, the center of circle for defining the wind wheel is point O, point Ai(i=1~n) is to be located at A on preceding volute tongue curve1And AnSeveral
Point, AnFor the starting point of the free end of preceding volute tongue, A1For the last point of preceding volute tongue, line segment AiBiIndicate point AiWith the vertical range of wind wheel,
Intersection point point is Bi；
The lowest distance value for defining wind wheel and preceding volute tongue is δ, δ=Min { A1B1, A2B2, A3B3... AiBi…AnBn,
0.035D0≤δ≤0.065D0, and δ < A1B1。
2. air conditioner indoor unit as described in claim 1, which is characterized in that the distance value of the wind wheel and preceding volute tongue is from point A1It arrives
Point AnIt is arranged in being gradually reduced.
3. air conditioner indoor unit as claimed in claim 2, which is characterized in that in point A1To point AnDirection on adjoining two o'clock
For AkAnd Ak+1, 1.005≤AkBk/Ak+1Bk+1≤ 1.110, (k=1,2,3 ..., n-1).
4. air conditioner indoor unit as described in claim 1, which is characterized in that the distance value of the wind wheel and preceding volute tongue is from point A1It arrives
Point AnIt is gradually increased setting again in being gradually reduced.
5. air conditioner indoor unit as claimed in claim 4, which is characterized in that between the preceding volute tongue curve and the wind wheel most
The point of small distance value is Amin, the last point A of the preceding volute tongue1With the point AminBetween curve correspond to the wind wheel center of circle and formed
End packet sweep angle β1, the starting point A of the preceding volute tonguenWith the point AminBetween curve correspond to the wind wheel center of circle and form front end packet
Sweep angle β2, 0.55≤β1/β2≤3.65。
6. air conditioner indoor unit as claimed in claim 4, which is characterized in that the last point A of the preceding volute tongue1Between the wind wheel
Distance value be greater than the last point A of the preceding volute tonguenThe distance between described wind wheel value.
7. the air conditioner indoor unit as described in any one of claim 1 to 6, which is characterized in that the point AnIn the water for crossing O point
The lower section of plane.
8. air conditioner indoor unit as claimed in claim 7, which is characterized in that the free end starting point A of the preceding volute tonguenWith the company of O point
The value range of angle α between line and the horizontal plane for crossing O point are as follows: 30 °≤α≤70 °.
9. air conditioner indoor unit as claimed in claim 7, which is characterized in that the development length of the preceding volute tongue corresponds to the wind wheel
The center of circle is formed by the value range of packet sweep angle β are as follows: 15 °≤β≤40 °.
10. a kind of air conditioner, which is characterized in that including the air conditioner indoor unit as described in any in claim 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811420943.4A CN109595690B (en) | 2018-11-23 | 2018-11-23 | Air conditioner indoor unit and air conditioner |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811420943.4A CN109595690B (en) | 2018-11-23 | 2018-11-23 | Air conditioner indoor unit and air conditioner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109595690A true CN109595690A (en) | 2019-04-09 |
| CN109595690B CN109595690B (en) | 2024-04-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811420943.4A Active CN109595690B (en) | 2018-11-23 | 2018-11-23 | Air conditioner indoor unit and air conditioner |
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| Country | Link |
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| CN (1) | CN109595690B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110553399A (en) * | 2019-07-17 | 2019-12-10 | 珠海格力电器股份有限公司 | cross flow air duct assembly and fan heater |
| CN111637530A (en) * | 2020-06-03 | 2020-09-08 | Tcl空调器(中山)有限公司 | Volute tongue, air conditioner indoor unit and air conditioner |
| CN112524093A (en) * | 2019-09-17 | 2021-03-19 | 广东美的环境电器制造有限公司 | Air guide assembly and air supply device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203719071U (en) * | 2014-02-10 | 2014-07-16 | 广东美的制冷设备有限公司 | Air conditioner and air flue structure thereof |
| CN206094460U (en) * | 2016-09-20 | 2017-04-12 | Tcl空调器(中山)有限公司 | Air conditioner air duct subassembly and air conditioner that has it |
| CN209042569U (en) * | 2018-11-23 | 2019-06-28 | 广东美的制冷设备有限公司 | Air conditioner indoor unit and air conditioner |
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2018
- 2018-11-23 CN CN201811420943.4A patent/CN109595690B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203719071U (en) * | 2014-02-10 | 2014-07-16 | 广东美的制冷设备有限公司 | Air conditioner and air flue structure thereof |
| CN206094460U (en) * | 2016-09-20 | 2017-04-12 | Tcl空调器(中山)有限公司 | Air conditioner air duct subassembly and air conditioner that has it |
| CN209042569U (en) * | 2018-11-23 | 2019-06-28 | 广东美的制冷设备有限公司 | Air conditioner indoor unit and air conditioner |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110553399A (en) * | 2019-07-17 | 2019-12-10 | 珠海格力电器股份有限公司 | cross flow air duct assembly and fan heater |
| CN112524093A (en) * | 2019-09-17 | 2021-03-19 | 广东美的环境电器制造有限公司 | Air guide assembly and air supply device |
| CN111637530A (en) * | 2020-06-03 | 2020-09-08 | Tcl空调器(中山)有限公司 | Volute tongue, air conditioner indoor unit and air conditioner |
| CN111637530B (en) * | 2020-06-03 | 2021-11-09 | Tcl空调器(中山)有限公司 | Volute tongue, air conditioner indoor unit and air conditioner |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109595690B (en) | 2024-04-26 |
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