CN110159592A - A kind of volute of blower grading structure and air conditioner - Google Patents
A kind of volute of blower grading structure and air conditioner Download PDFInfo
- Publication number
- CN110159592A CN110159592A CN201910556944.XA CN201910556944A CN110159592A CN 110159592 A CN110159592 A CN 110159592A CN 201910556944 A CN201910556944 A CN 201910556944A CN 110159592 A CN110159592 A CN 110159592A
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- China
- Prior art keywords
- air
- spiral case
- starting point
- blower
- volute
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- 230000002035 prolonged effect Effects 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 4
- 230000007423 decrease Effects 0.000 description 7
- 238000000034 method Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- 241000237858 Gastropoda Species 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
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
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/4206—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
- F04D29/4226—Fan casings
- F04D29/4233—Fan casings with volutes extending mainly in axial or radially inward direction
-
- 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
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/44—Fluid-guiding means, e.g. diffusers
- F04D29/441—Fluid-guiding means, e.g. diffusers especially adapted for elastic fluid pumps
-
- 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
- F04D29/663—Sound attenuation
-
- 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
- F24F1/0022—Centrifugal or radial fans
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The present invention relates to air conditioner technical fields, in particular to a kind of volute of blower grading structure and air conditioner.A kind of volute of blower grading structure comprising the air-out passage and cricoid baffle liner of columnar spiral case ontology, tubular；Opposite the first side and second side of spiral case ontology column end face is respectively set in air-out passage and baffle liner；Baffle liner is located at the first upper side；Along the outer ring direction of baffle liner, the periphery of the first side forms the extension extended to the air-out passage of second side；The extension starting point of extension includes the starting point A1 far from the baffle liner side and starting point B1 close to baffle liner side.Mode when so can be by adjustment blower outlet air, prevents noise from increasing, ensures air output and air-out effect.
Description
Technical field
The present invention relates to air conditioner technical fields, in particular to a kind of volute of blower grading structure and air conditioner.
Background technique
The current indoor unit of air-out type packaged air conditioner up and down generally has two air outlets up and down and respectively to two air outlet
The fan part of air-supply.Generally only need outlet air above air conditioner when refrigeration, uptake only one, left and right swing flap range is small,
User experience effect is poor.
When two wind components are arranged, have interfere therebetween.
Summary of the invention
The purpose of the present invention include a kind of volute of blower grading structure is provided, can by adjust blower outlet air when side
Formula prevents noise from increasing, and ensures air output and air-out effect.
Another object of the present invention includes providing a kind of air conditioner including above-mentioned volute of blower grading structure.
The embodiment of the present invention is achieved through the following technical solutions:
A kind of volute of blower grading structure comprising:
The air-out passage and cricoid baffle liner of columnar spiral case ontology, tubular；
Opposite the first side and second side of spiral case ontology column end face is respectively set in air-out passage and baffle liner；Baffle liner
Positioned at the first upper side；
Along the outer ring direction of baffle liner, the periphery of the first side forms the extension extended to the air-out passage of second side；
The extension starting point of extension includes the starting point A1 far from the baffle liner side and starting point B1 close to baffle liner side.
A kind of existing mode is that upper air outlet is divided into two, respectively corresponds two wind components, two air outlets point
It Kong Zhi not rotate.Because upper wind component occupies most of space, the air-out passage of middle part wind component need to be deformed by upper snail again
The front of shell need to also be deformed to guarantee beautiful and total tune before and after left and right wind outlet in same plane, upper outlet air spiral case
Air outlet is moved forward.Different deformations will affect the size of air quantity and noise, and inventor devises a kind of volute of blower gradually accordingly
Structure changes, by by the periphery of the first side of spiral case ontology and baffle liner antarafacial, even if spiral case periphery deforms, so that spiral case
Do not occur sharply deforming, wind process is more suitable, and motor can be promoted with revolving speed downdraft, noise decline.
In an embodiment of the present invention:
The above-mentioned radial direction along spiral case ontology, starting point A1 and starting point B1 are conllinear, and are respectively positioned on the cylindrical end of spiral case ontology
The end of the separate air-out passage in face.
In an embodiment of the present invention:
It is above-mentioned spiral case ontology in the radial direction, extension extends close to out from far from the longitudinal end of air-out passage
The longitudinal end in wind channel.
In an embodiment of the present invention:
The above-mentioned circumferential direction along spiral case ontology, starting point A1 and starting point B1 are respectively positioned on the column end face of spiral case ontology close to out
The end in wind channel；
The line and electrical axis of A1 point and electrical axis form default angle α 1 along air-out direction vertical line；
The line and electrical axis of B1 point and electrical axis form default angle β 1 along air-out direction vertical line；
And 1≤300 ° of 10 °≤α, 1≤360 ° of 0≤β；
The height of the column end face for the end-point distances spiral case ontology that extension leads to close to outlet air is △ H；
Along air-out direction vertical line, the length of extension is L；
And 0 < △ H≤200mm, 5mm≤L≤400mm.
In an embodiment of the present invention:
Above-mentioned air-out passage is higher than second side, and volute of blower grading structure further includes linkage section；
On the second side, the other end is connect with air-out passage, linkage section, second side, the first side for one end setting of linkage section
Form complete spiral case shell；
Linkage section has the starting point B2 close to spiral case axle center, and the starting point A2 far from spiral case axle center.
In an embodiment of the present invention:
The above-mentioned radial direction along spiral case ontology, starting point A2 and starting point B2 are conllinear, and are respectively positioned on the cylindrical end of spiral case ontology
The end of the separate air-out passage in face.
In an embodiment of the present invention:
The above-mentioned circumferential direction along spiral case ontology, starting point A2 and starting point B2 are respectively positioned on the column end face of spiral case ontology close to out
The end in wind channel.
In an embodiment of the present invention:
The line and electrical axis of above-mentioned A2 point and electrical axis form default angle α 2 along air-out direction vertical line；
The line and electrical axis of B2 point and electrical axis form default angle β 2 along air-out direction vertical line；
And 2≤300 ° of 10 °≤α, 2≤360 ° of 0≤β；
The height of the column end face for the end-point distances spiral case ontology that extension leads to close to outlet air is △ H2；
Along air-out direction vertical line, the length of extension is L2；
And 0 < △ H2≤200mm, 5mm≤L2≤400mm.
In an embodiment of the present invention:
Above-mentioned air-out passage is concordant with second side；
For second side tool there are two changeover portion, changeover portion extends to the first side from second side；
Two changeover portions are symmetrical along air-out direction vertical line.
A kind of air conditioner comprising the volute of blower grading structure of any of the above-described.This type of air conditioner outlet air is smooth,
Motor can be promoted with revolving speed downdraft, and noise decline has outstanding comfort.
The technical solution of the embodiment of the present invention is at least had the following advantages and beneficial effects:
A kind of volute of blower grading structure, by by the periphery of the first side of spiral case ontology and baffle liner antarafacial, even if snail
The deformation of shell periphery, so that sharply deforming does not occur in spiral case, wind process is more suitable, and motor can be promoted with revolving speed downdraft, noise
Decline.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be to needed in the embodiment attached
Figure is briefly described, it should be understood that the following drawings illustrates only certain embodiments of the present invention, therefore is not construed as pair
The restriction of range for those of ordinary skill in the art without creative efforts, can also be according to this
A little attached drawings obtain other relevant attached drawings.
Fig. 1 is the first structure diagram of the embodiment of the present invention；
Fig. 2 is the second structural schematic diagram of the embodiment of the present invention；
Fig. 3 is the third structural schematic diagram of the embodiment of the present invention；
Fig. 4 is the 4th structural schematic diagram of the embodiment of the present invention；
Fig. 5 is the 5th structural schematic diagram of the embodiment of the present invention.
Icon: 10- volute of blower grading structure；100- spiral case ontology；The first side 110-；120- second side；200- outlet air
Channel；300- baffle liner；400- extension；500- linkage section；600- changeover portion.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.The present invention being usually described and illustrated herein in the accompanying drawings is implemented
The component of example can be arranged and be designed with a variety of different configurations.
Therefore, the detailed description of the embodiment of the present invention provided in the accompanying drawings is not intended to limit below claimed
The scope of the present invention, but be merely representative of selected embodiment of the invention.Based on the embodiments of the present invention, this field is common
Technical staff's every other embodiment obtained without creative efforts belongs to the model that the present invention protects
It encloses.
It should also be noted that similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined in a attached drawing, does not then need that it is further defined and explained in subsequent attached drawing.
In the description of the present invention, it should be noted that if occur term " center ", "upper", "lower", "left", "right",
The orientation or positional relationship of the instructions such as "vertical", "horizontal", "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings,
Either the invention product using when the orientation or positional relationship usually put, be merely for convenience of the description present invention and simplification retouched
It states, rather than the device or element of indication or suggestion meaning must have a particular orientation, be constructed and operated in a specific orientation,
Therefore it is not considered as limiting the invention.In addition, term " first ", " second ", " third " etc. are only used for distinguishing description, and
It cannot be understood as indicating or implying relative importance.
In addition, being not offered as requiring component abswolute level or outstanding if there are the terms such as term "horizontal", "vertical", " pendency "
It hangs down, but can be slightly tilted.It is not to indicate to be somebody's turn to do if "horizontal" only refers to that its direction is more horizontal with respect to for "vertical"
Structure is had to fully horizontally, but can be slightly tilted.
In the description of the present invention, it is also necessary to which explanation is unless specifically defined or limited otherwise, if there is term
" setting ", " installation ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, be also possible to detachably connect
It connects, or is integrally connected；It can be mechanical connection, be also possible to be electrically connected；It can be directly connected, intermediate matchmaker can also be passed through
Jie is indirectly connected, and can be the connection inside two elements.It for the ordinary skill in the art, can be with concrete condition
Understand the concrete meaning of above-mentioned term in the present invention.
Fig. 1 is please referred to, Fig. 1 is a kind of structural schematic diagram of volute of blower grading structure 10 provided in an embodiment of the present invention.
As can be seen from Figure 1 a kind of volute of blower grading structure 10 includes the air-out passage 200 of columnar spiral case ontology 100, tubular
With cricoid baffle liner 300.
Air-out passage 200 and baffle liner 300 be respectively set 100 column end face of spiral case ontology the first opposite side 110 and
Second side 120；Baffle liner 300 is located at 110 top of the first side；
Along the outer ring direction of baffle liner 300, the periphery of the first side 110 is formed to be prolonged to the air-out passage 200 of second side 120
The extension 400 stretched；
The extension starting point of extension 400 includes the starting point A1 far from 300 side of baffle liner and the starting point close to 300 side of baffle liner
B1。
Different deformations will affect the size of air quantity and noise, and inventor devises a kind of volute of blower grading structure accordingly
10, by the way that the periphery of the first side 110 of spiral case ontology 100 and 300 antarafacial of baffle liner are so made even if spiral case periphery deforms
It obtains spiral case not occurring sharply deforming, wind process is more suitable, and motor can be promoted with revolving speed downdraft, noise decline.
Please continue to refer to Fig. 1 to Fig. 5, to understand more CONSTRUCTED SPECIFICATIONs.
It can be seen from the figure that in the present embodiment of the invention, it is above-mentioned spiral case ontology 100 in the radial direction, prolong
Extending portion 400 extends close to the longitudinal end of air-out passage 200 from the longitudinal end far from air-out passage 200.
Further, such as Fig. 1 and Fig. 2, in the present embodiment of the invention, the above-mentioned circumferential direction along spiral case ontology 100,
Starting point A1 and starting point B1 is respectively positioned on the column end face of spiral case ontology 100 close to the end of air-out passage 200；
The line and electrical axis of A1 point and electrical axis form default angle α 1 along air-out direction vertical line；
The line and electrical axis of B1 point and electrical axis form default angle β 1 along air-out direction vertical line；
And 1≤300 ° of 10 °≤α, 1≤360 ° of 0≤β；
The height of the column end face for the end-point distances spiral case ontology 100 that extension 400 leads to close to outlet air is △ H；
Along air-out direction vertical line, the length of extension 400 is L；
And 0 < △ H≤200mm, 5mm≤L≤400mm.
Sharply deforming does not occur in such spiral case, and wind process is more suitable, and motor can be promoted with revolving speed downdraft, noise decline.
Optionally, in other embodiments of the invention, the above-mentioned radial direction along spiral case ontology 100, starting point A1 and rise
Point B1 is conllinear, and is respectively positioned on the end of the separate air-out passage 200 of the column end face of spiral case ontology 100.
As shown in Figure 1 to Figure 4, in the present embodiment of the invention, above-mentioned air-out passage 200 is higher than second side 120, volute of blower
Grading structure 10 further includes linkage section 500；One end of linkage section 500 is arranged in second side 120, the other end and air-out passage
200 connections, linkage section 500, second side 120, the first side 110 form complete spiral case shell；Linkage section 500 has close to spiral case
The starting point B2 in axle center, and the starting point A2 far from spiral case axle center.
Further, in the present embodiment of the invention, the above-mentioned circumferential direction along spiral case ontology 100, starting point A2 and rise
Point B2 is respectively positioned on the column end face of spiral case ontology 100 close to the end of air-out passage 200.
Optionally, in the present embodiment, the line and electrical axis of above-mentioned A2 point and electrical axis are vertical along air-out direction
Line forms default angle α 2；
The line and electrical axis of B2 point and electrical axis form default angle β 2 along air-out direction vertical line；
And 2≤300 ° of 10 °≤α, 2≤360 ° of 0≤β；
The height of the column end face for the end-point distances spiral case ontology 100 that extension 400 leads to close to outlet air is △ H2；
Along air-out direction vertical line, the length of extension 400 is L2；
And 0 < △ H2≤200mm, 5mm≤L2≤400mm.
Spiral case is made not occur sharply deforming in this way, wind process is more suitable, and motor can be promoted with revolving speed downdraft, under noise
Drop.Both the above mode is being not in concave-convex variation from A to deflection endpoint B.Or other deformations sharply.
Optionally, in other embodiments of the invention, the above-mentioned radial direction along spiral case ontology 100, starting point A2 and rise
Point B2 is conllinear, and is respectively positioned on the end of the separate air-out passage 200 of the column end face of spiral case ontology 100.
It can also be seen that in other embodiments of the invention, above-mentioned air-out passage 200 and second side 120 are flat from Fig. 5
Together；For the tool of second side 120 there are two changeover portion 600, changeover portion 600 extends to the first side 110 from second side 120；Two changeover portions
600 is symmetrical along air-out direction vertical line.
When spiral case motor installation side plane is concordant with 200 height of air-out passage, spiral case surface is not in bulging deformation,
It avoids air-out passage 200 from having pit, has an impact to noise air quantity.By way of extension, air-out effect can be preferably ensured.
The present embodiment of the invention also provides a kind of air conditioner comprising the volute of blower grading structure of any of the above-described
10.This type of air conditioner outlet air is smooth, can be promoted in motor with revolving speed downdraft, and noise decline has outstanding comfort.
The technical solution of the embodiment of the present invention is at least had the following advantages and beneficial effects:
A kind of volute of blower grading structure 10, by by the periphery of the first side 110 of spiral case ontology 100 and baffle liner 300
Antarafacial, even if spiral case periphery deforms, so that sharply deforming does not occur in spiral case, wind process is more suitable, and motor is the same as revolving speed downdraft
It can be promoted, noise decline.
Although present disclosure is as above, present invention is not limited to this.Anyone skilled in the art are not departing from this
It in the spirit and scope of invention, can make various changes or modifications, therefore protection scope of the present invention should be with claim institute
Subject to the range of restriction.
Claims (10)
1. a kind of volute of blower grading structure characterized by comprising
The air-out passage and cricoid baffle liner of columnar spiral case ontology, tubular；
Opposite the first side and second of the spiral case ontology column end face is respectively set in the air-out passage and the baffle liner
Side；The baffle liner is located at first upper side；
Along the outer ring direction of the baffle liner, the periphery of first side is formed to be prolonged to the air-out passage of described second side
The extension stretched；
The extension starting point of the extension includes the starting point A1 far from the baffle liner side and the starting point close to the baffle liner side
B1。
2. volute of blower grading structure according to claim 1, it is characterised in that:
Along the radial direction of the spiral case ontology, the starting point A1 and the starting point B1 are conllinear, and are respectively positioned on the spiral case ontology
Column end face far from the air-out passage end.
3. volute of blower grading structure according to claim 2, it is characterised in that:
The spiral case ontology in the radial direction, the extension extends close to out from far from the longitudinal end of air-out passage
The longitudinal end in wind channel.
4. volute of blower grading structure according to claim 1, it is characterised in that:
Along the circumferential direction of the spiral case ontology, the starting point A1 and the starting point B1 are respectively positioned on the cylindrical end of the spiral case ontology
Face is close to the end of the air-out passage；
The line and electrical axis of A1 point and electrical axis form default angle α 1 along air-out direction vertical line；
The line and electrical axis of B1 point and electrical axis form default angle β 1 along air-out direction vertical line；
And 1≤300 ° of 10 °≤α, 1≤360 ° of 0≤β；
Height of the extension close to the column end face of spiral case ontology described in the logical end-point distances of the outlet air is △ H；
Along air-out direction vertical line, the length of the extension is L；
And 0 < △ H≤200mm, 5mm≤L≤400mm.
5. volute of blower grading structure described in any one of -4 according to claim 1, it is characterised in that:
The air-out passage is higher than described second side, and the volute of blower grading structure further includes linkage section；
On the second side, the other end is connect with the air-out passage, the linkage section, second for one end setting of the linkage section
Side, the first side form complete spiral case shell；
The linkage section has the starting point B2 close to spiral case axle center, and the starting point A2 far from spiral case axle center.
6. volute of blower grading structure according to claim 5, it is characterised in that:
Along the radial direction of the spiral case ontology, the starting point A2 and the starting point B2 are conllinear, and are respectively positioned on the spiral case ontology
Column end face far from the air-out passage end.
7. volute of blower grading structure according to claim 6, it is characterised in that:
Along the circumferential direction of the spiral case ontology, the starting point A2 and the starting point B2 are respectively positioned on the cylindrical end of the spiral case ontology
Face is close to the end of the air-out passage.
8. volute of blower grading structure according to claim 7, it is characterised in that:
The line and electrical axis of A2 point and electrical axis form default angle α 2 along air-out direction vertical line；
The line and electrical axis of B2 point and electrical axis form default angle β 2 along air-out direction vertical line；
And 2≤300 ° of 10 °≤α, 2≤360 ° of 0≤β；
Height of the extension close to the column end face of spiral case ontology described in the logical end-point distances of the outlet air is △ H2；
Along air-out direction vertical line, the length of the extension is L2；
And 0 < △ H2≤200mm, 5mm≤L2≤400mm.
9. volute of blower grading structure described in any one of -4 according to claim 1, it is characterised in that:
The air-out passage is concordant with described second side；
For second side tool there are two changeover portion, the changeover portion extends to first side from described second side；Described in two
Changeover portion is symmetrical along air-out direction vertical line.
10. a kind of air conditioner, it is characterised in that:
The air conditioner includes volute of blower grading structure of any of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910556944.XA CN110159592A (en) | 2019-06-25 | 2019-06-25 | A kind of volute of blower grading structure and air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910556944.XA CN110159592A (en) | 2019-06-25 | 2019-06-25 | A kind of volute of blower grading structure and air conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110159592A true CN110159592A (en) | 2019-08-23 |
Family
ID=67625629
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910556944.XA Pending CN110159592A (en) | 2019-06-25 | 2019-06-25 | A kind of volute of blower grading structure and air conditioner |
Country Status (1)
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| CN (1) | CN110159592A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6224335B1 (en) * | 1999-08-27 | 2001-05-01 | Delphi Technologies, Inc. | Automotive air conditioning fan assembly |
| US20040240994A1 (en) * | 2003-02-28 | 2004-12-02 | Cole Eric S. | Fan housing |
| CN104764100A (en) * | 2014-12-31 | 2015-07-08 | Lg电子株式会社 | Air conditioner |
| CN105987022A (en) * | 2014-10-16 | 2016-10-05 | Lg电子株式会社 | Centrifugal fan and air conditioner having the same |
| CN210141225U (en) * | 2019-06-25 | 2020-03-13 | 宁波奥克斯电气股份有限公司 | Gradual change structure of fan volute and air conditioner |
-
2019
- 2019-06-25 CN CN201910556944.XA patent/CN110159592A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6224335B1 (en) * | 1999-08-27 | 2001-05-01 | Delphi Technologies, Inc. | Automotive air conditioning fan assembly |
| US20040240994A1 (en) * | 2003-02-28 | 2004-12-02 | Cole Eric S. | Fan housing |
| CN105987022A (en) * | 2014-10-16 | 2016-10-05 | Lg电子株式会社 | Centrifugal fan and air conditioner having the same |
| CN104764100A (en) * | 2014-12-31 | 2015-07-08 | Lg电子株式会社 | Air conditioner |
| CN210141225U (en) * | 2019-06-25 | 2020-03-13 | 宁波奥克斯电气股份有限公司 | Gradual change structure of fan volute and air conditioner |
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