CN101737870B - Indoor unit for air conditioning apparatus - Google Patents
Indoor unit for air conditioning apparatus Download PDFInfo
- Publication number
- CN101737870B CN101737870B CN2009102063061A CN200910206306A CN101737870B CN 101737870 B CN101737870 B CN 101737870B CN 2009102063061 A CN2009102063061 A CN 2009102063061A CN 200910206306 A CN200910206306 A CN 200910206306A CN 101737870 B CN101737870 B CN 101737870B
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- CN
- China
- Prior art keywords
- fan
- indoor unit
- air
- noise
- conditioning equipment
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F7/00—Ventilation
- F24F7/007—Ventilation with forced flow
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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
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/26—Rotors specially for elastic fluids
- F04D29/28—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps
- F04D29/281—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps for fans or blowers
- F04D29/282—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps for fans or blowers the leading edge of each vane being substantially parallel to the rotation axis
- F04D29/283—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps for fans or blowers the leading edge of each vane being substantially parallel to the rotation axis rotors of the squirrel-cage type
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/26—Rotors specially for elastic fluids
- F04D29/28—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps
- F04D29/30—Vanes
-
- 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
-
- 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
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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
- F24F1/0043—Indoor units, e.g. fan coil units characterised by mounting arrangements
- F24F1/0057—Indoor units, e.g. fan coil units characterised by mounting arrangements mounted in or on a wall
-
- 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
- F24F13/24—Means for preventing or suppressing noise
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Air-Conditioning Room Units, And Self-Contained Units In General (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Air Filters, Heat-Exchange Apparatuses, And Housings Of Air-Conditioning Units (AREA)
Abstract
The present invention relates to an indoor unit for an air conditioning apparatus and relates to an optimized design of a fan that can reduce noise and flow resistance in an indoor unit to which a cross flow fan is applied. As the cross flow fan according to the embodiment of the present invention is applied, fan noise can be reduced and flow resistance of air passing through a heat exchanger can be reduced.
Description
Technical field
The application requires the priority of the 10-2008-0117860 korean patent application of submission on November 26th, 2008, and this patent application all is incorporated in this through quoting.
Background technology
The present invention relates to a kind of indoor unit of air-conditioning equipment.
Usually, air-conditioning equipment is that a kind of compressor, condenser, expander and evaporimeter of using cools off/equipment of heating the room.
The air-conditioning equipment that comprises indoor unit and outdoor unit can be the separation air conditioner equipment that indoor unit wherein separates with outdoor unit, also can be the integral type air-conditioning that wherein indoor unit and outdoor unit are combined into one.
In indoor unit, be equipped with and force mobile fan of air and the heat exchanger that carries out heat exchange with room air to be sucked.
In addition, for traditional air-conditioning equipment, can adopt the past upper surface leaked-in air will be discharged to the method for front surface downwards at large.And, for the indoor unit of the separation on being installed in wall surface, generally use cross flow fan.
In the indoor unit that uses this cross flow fan, the consumer constantly increases for the demand of the indoor unit that uses the efficient cross flow fan that can reduce the electric charge load.
More specifically, efficient in order for limited indoor unit specification, still to realize, the heat exchanger that uses heat exchange area to increase usually.In order to satisfy these requirements, also can use the heat exchanger that three row's coolant hoses are set along fore-and-aft direction.But, if with said heat exchanger application with three row's coolant hoses in the indoor unit that uses cross flow fan, then the heat exchange area of heat exchanger can become greatly, but SR also can increase.And along with the increase of SR, the noise level under the identical air quantity also can increase.For example, probably can produce noise such as surge noise.
Summary of the invention
The present invention is proposed in order to address this problem.The purpose of this invention is to provide a kind of following fan structure; Promptly; When the heat exchanger application with three row's coolant hoses when using the indoor unit of cross flow fan, although because long-time the use, the dust that accumulates on heat exchanger or the filter causes air drag to increase; This fan still can run well and can not produce unusual noise, thereby noise level is reduced.
According to embodiments of the invention, a kind of indoor unit of air-conditioning equipment is provided, comprising: underframe, it comprises stabilizing member and the fan-slot that produces air-flow; Cross flow fan, it is installed on underframe and the corresponding front surface in upper end stabilizing member, to suck room air; Heat exchanger, it is arranged on the front side of fan so that carry out heat exchange with room air, 0.088≤T/L≤0.132 wherein, T wherein is the thickness of fan, L is the length of fan.
Through according to the as above indoor unit of air-conditioning equipment of the embodiment of the invention of structure, although, still can reduce SR for the heat exchanger effectiveness that improves indoor unit has used the heat exchanger with three row's coolant hoses.
And, although use, accumulating in the resistance increase that the dust on heat exchanger or the filter causes because of long-time, fan still can normally turn round and N/R noise.
In addition, although used heat exchanger, still can reduce noise level with three row's coolant hoses.
Description of drawings
Through the description of preferred embodiment being carried out below in conjunction with accompanying drawing, above-mentioned purpose, characteristic and advantage with other of the present invention will become obviously, wherein:
Fig. 1 is the sectional view that illustrates according to the structure of the indoor unit of the air-conditioning equipment of the embodiment of the invention;
Fig. 2 is the front perspective view according to the underframe that indoor unit adopted of the embodiment of the invention;
Fig. 3 is mounted in the partial perspective view according to the fan on the indoor unit of the embodiment of the invention;
Fig. 4 is the side view of fan;
Fig. 5 be illustrate with Fig. 4 in the stereogram of the corresponding fan blade of A part;
The curve map of Fig. 6 shows according to the outer peripheral corner of the fan of the indoor unit of the embodiment of the invention and the experimental result of the relation between the fan noise;
The curve map of Fig. 7 shows according to the ratio of the internal diameter of the fan of the indoor unit of the embodiment of the invention and external diameter and the experimental result of the relation between the fan noise;
The curve map of Fig. 8 shows the experimental result according to the relation between the thickness of the fan of the indoor unit of the embodiment of the invention and length ratio and the fan noise;
The curve map of Fig. 9 shows the experimental result according to the relation between the insertion depth of the fan of the indoor unit of the embodiment of the invention and length ratio and the fan noise; And
The curve map of Figure 10 shows when the indoor unit of the fan that optimal design is installed is driven, the improved result of noiseproof feature.
The specific embodiment
Hereinafter, will describe a plurality of embodiment of the present invention in detail with reference to accompanying drawing.
Fig. 1 is the sectional view that illustrates according to the structure of the indoor unit of the air-conditioning equipment of the embodiment of the invention.
With reference to figure 1, the indoor unit 10 of air-conditioning equipment comprises: the underframe 11 that closely is attached to wall surface; Be attached to the front baffle 12 of underframe 11 front sides; Rotatably or liftably be arranged on the front panel 13 on front baffle 12 front surfaces; Be contained in the space that forms by underframe 11 and front baffle 12, to suck the fan 17 of room air; Thereby and surround the heat exchanger 16 that fan 17 and room air to be sucked carry out heat exchange.
More specifically, on the front surface of underframe 11, be provided with stabilizing member 112, to allow producing air-flow along with the rotation of fan 17.And, form the heat exchanger support portion 111 of an end that supports heat exchanger 16 at the upside of stabilizing member 112.
And, be formed with the entry grates 121 that sucks room air on the upper surface of former frame frame 12, and also be formed with the front surface inlet portion 122 that room air is got on the front surface of former frame frame.And, filter 15 is installed, with the room air of cleaning via entry grates 121 and 122 suctions of front surface inlet portion on the front surface of heat exchanger 16.
In addition, if indoor unit 10 runnings, then the upper end of front panel 13 or lower end are rotated or rotate up, and open to allow front surface inlet portion 122.And, be provided with air discharge grille 14 in the lower end of indoor unit 10, wherein the other end of heat exchanger 16 places the upside of this air discharge grille 14, and air outlet slit portion 141 is formed on the downside of this air discharge grille.In addition, the lower end of stabilizing member 112 extends to air outlet slit portion 141.And; Be provided with exhausting window 143 and exhausting blade 142 at air outlet slit portion 141 places; This exhausting window can be controlled the flowing and to the right that is discharged from air left, and this exhausting blade is opening/closing air outlet slit portion 141 optionally not only, but also control be discharged from air upwards with downward flowing.In addition, exhausting blade 142 can rotatably link at the downside of air discharge grille 14 with exhausting window 143 each other.And the shape of heat exchanger 16 can be: coolant hose along fore-and-aft direction be set to three rows or be divided into a plurality of, to surround the front portion and the top of fan 17.In addition, fan 17 can be a cross flow fan.
Fig. 2 is the front perspective view according to the employed underframe of indoor unit of the embodiment of the invention;
With reference to figure 2, as stated, heat exchanger support portion and stabilizing member 112 are formed on the front surface of indoor unit 10 employed underframe 11 of the present invention.
More specifically, the corresponding side in position with forming stabilizing member 112 at underframe 11 is formed with fan support 114.And, being provided with electric machine support portion 113 in a side of fan support 114, the motor of drive fan 17 places in this electric machine support portion.And, also be provided with the structure of the side of supports fan 17 at the opposite side of underframe 11.More specifically, be formed with the fan-slot 115 of recessed desired depth t at the opposite side of underframe 11, with the side of supports fan 17.
At this, the recessed degree of depth according to fan-slot 115 can produce fan noise in various degree.Therefore, the degree of depth of fan-slot 115 becomes the main design parameters of the noise that reduces indoor unit.Hereinafter, will the degree of depth of fan-slot 115 and the relation between the noise be described based on experimental result, and the optimum depth of explanation fan-slot 115.
Fig. 3 is mounted in the partial perspective view according to the fan on the indoor unit of the embodiment of the invention, and Fig. 4 is the side view of fan.
With reference to figure 3 and Fig. 4, can be cross flow fan according to the employed fan 17 of the indoor unit of the embodiment of the invention, and this cross flow fan have a plurality of blades 171 that along the circumferential direction radially are provided with.And each blade θ at a predetermined angle is provided with obliquely.In other words, the line that extends along the direction of the width s (see figure 5) of each blade is formed on the blade with non-parallel rotating shaft but the mode of predetermined oblique angle θ in fan 17.
And fan is through the inside diameter D 1 of 171 medial extremity from the center to the blade, D outer diameter 2, inner periphery angle β 1 and the outer peripheral corner β 2 of 171 outboard end forms mean camber lines from the center to the blade.
At this, the mean camber line of blade (hereinafter, being called camber line) is meant the binary line of thickness T (see figure 5) with blade 171.
And the inner periphery angle is meant: line and the circle that forms from inside diameter D 1 by medial extremity that connects camber line and fan center begin the formed angle of contact wire through the medial extremity of camber line, and hereinafter, the inner periphery angle will be made as 90 degree.
And outer peripheral corner is meant: the formed angle of contact wire that begins to pass through the outboard end of camber line by the extension straight line that extends from the outboard end of camber line with from the circle that D outer diameter 2 forms.
Fig. 5 be illustrate with Fig. 4 in the stereogram of the corresponding fan blade of A part.
With reference to figure 5, the blade 171 that constitutes fan 17 has predetermined length L and width s, and along curved on the direction of length.
More specifically, the incurvature ρ 1 of blade 171 is set at the extrinsic curvature ρ 2 that is different from blade.Therefore, in blade 171, the thickness of marginal portion is different from the thickness of core.In other words, being shaped as of blade 171: thickening and attenuation subsequently pass through.And, according to the length L (chord length) that limits blade 171 from the medial extremity of blade to the air line distance of the outboard end of blade.
In the indoor unit 10 that the fan 17 of as above constructing is installed, can confirm through multiple experiment: the thickness of the ratio of the internal diameter of fan 17 and external diameter and the relation between relation, outer peripheral corner and the noise between the noise, fan and the relation between length ratio and the noise, the insertion depth of fan side and the relation between fan length ratio and the noise.And,, obtained making the minimized optimal design condition of fan noise through above-mentioned experiment.
The curve map of Fig. 6 shows according to the outer peripheral corner of the fan of the indoor unit of the embodiment of the invention and the experimental result of the relation between the noise.
At this, notice that the inner periphery angle is made as 90 degree.
With reference to figure 6, can recognize that noise reduced before the outer peripheral corner of blade 171 reaches 30 degree, and when the outer peripheral corner of blade is spent above 30, increase once more subsequently.In other words, can recognize that outer peripheral corner is that 30 noises when spending are minimum through experimental result.
More specifically, can recognize that the outer peripheral corner of blade 171 is preferably 28 degree≤β, 2≤32 degree, more preferably, 30 degree≤β, 2≤32 degree.
The curve map of Fig. 7 shows according to the ratio of the internal diameter of the fan of the indoor unit of the embodiment of the invention and external diameter and the experimental result of the relation between the fan noise;
With reference to figure 7, can recognize that the internal diameter that noise at first is created in blade 171 and the ratio D1/D2 of external diameter are on 0.79 the point.In other words, noise reduced before the ratio of internal diameter and external diameter becomes 0.79, and surpassed at 0.79 o'clock at the ratio of internal diameter and external diameter subsequently and increase once more.
More specifically, can recognize that the internal diameter of blade 171 is preferably 0.77≤D1/D2≤0.81 with the ratio D1/D2 of external diameter, more preferably is 0.77≤D1/D2≤0.8.
The curve map of Fig. 8 shows the experimental result according to the relation between the thickness of the fan of the indoor unit of the embodiment of the invention and length ratio and the fan noise;
With reference to figure 8, can recognize that noise reduced before the thickness of fan and length ratio T/L reach 0.1, and increase once more above 0.1 o'clock with length ratio T/L at the thickness of fan subsequently.In other words, can recognize that noise is minimum on 0.1 the point at the thickness of fan and length ratio T/L through experimental result.
More specifically, can recognize that the thickness of fan and length ratio are preferably 0.088≤T/L≤0.132.
The curve map of Fig. 9 shows the experimental result according to the relation between the insertion depth of the fan of the indoor unit of the embodiment of the invention and length ratio and the fan noise.
With reference to figure 9, can recognize that noise reduced before the insertion depth of fan and length ratio t/L reach 0.007, and increase once more above 0.007 o'clock with length ratio t/L at the insertion depth of fan subsequently.In other words, can recognize that noise is minimum on 0.007 the point at the insertion depth of fan and length ratio t/L through experimental result.
More specifically, can recognize that the insertion depth of fan and length ratio are preferably 0.0044≤t/L≤0.0143.
And, can recognize to the experimental result shown in Fig. 9 that according to Fig. 6 the air blast function is maximum in the point of optimum noise or the scope at optimum noise.
Based on above-mentioned experimental result, can recognize that when having fan 17 corresponding to the blade construction 171 of optimum range when being installed on the indoor unit, overall air blast function can be improved, and noise can reduce.
The curve map of Figure 10 shows when the indoor unit of the fan that optimal design is installed is driven, the improved result of noiseproof feature.
With reference to Figure 10, can recognize that improve with fan structure and compare before, global noise reduces about 2.2dB after fan structure improves.
The effect that the optimal design of aforesaid fan has realized improving the air blast performance of fan and can reduce SR and fan noise.The size of this effect and indoor unit or the size of fan are irrelevant.
Person of skill in the art will appreciate that notion that discloses in the description based on the front at an easy rate and concrete embodiment revise or design other embodiment, to realize identical purpose of the present invention.Those skilled in the art will recognize that also these equivalent embodiment do not depart from the principle and the scope of the invention of setting forth in the accompanying claims.
Claims (6)
1. the indoor unit of an air-conditioning equipment comprises:
Underframe, it comprises stabilizing member and the fan-slot that produces air-flow;
Cross flow fan, it is installed on said underframe and the corresponding front surface in upper end said stabilizing member, to suck room air;
Heat exchanger, it is arranged on the front side of said fan so that carry out heat exchange with said room air,
0.088≤T/L≤0.132 wherein, T wherein is the thickness of fan, L is the length of fan.
2. the indoor unit of air-conditioning equipment according to claim 1,0.77≤D1/D2≤0.81 wherein, D1/D2 wherein is the internal diameter of fan and the ratio of external diameter.
3. the indoor unit of air-conditioning equipment according to claim 1 and 2,0.77≤D1/D2≤0.80 wherein, D1/D2 wherein is the internal diameter of fan and the ratio of external diameter.
4. the indoor unit of air-conditioning equipment according to claim 1,28 degree≤β, 2≤32 degree wherein, β 2 wherein is the outer peripheral corner of fan.
5. according to the indoor unit of claim 1 or 4 described air-conditioning equipments, wherein 30 degree≤β 2≤32 spend, and β 2 wherein is the outer peripheral corner of fan.
6. the indoor unit of air-conditioning equipment according to claim 1,0.0044≤t/L≤0.0143 wherein, t wherein is the insertion depth that fan inserts fan-slot, L is the length of fan.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR20080117860A KR101485609B1 (en) | 2008-11-26 | 2008-11-26 | Indoor unit for air conditioning apparatus |
| KR10-2008-0117860 | 2008-11-26 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101737870A CN101737870A (en) | 2010-06-16 |
| CN101737870B true CN101737870B (en) | 2012-12-05 |
Family
ID=41527851
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009102063061A Expired - Fee Related CN101737870B (en) | 2008-11-26 | 2009-10-13 | Indoor unit for air conditioning apparatus |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20100126206A1 (en) |
| EP (1) | EP2192354B1 (en) |
| KR (1) | KR101485609B1 (en) |
| CN (1) | CN101737870B (en) |
| ES (1) | ES2401533T3 (en) |
Families Citing this family (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102822531B (en) * | 2010-03-15 | 2015-07-01 | 夏普株式会社 | Fan, metallic mold, and fluid delivery device |
| US20110283986A1 (en) * | 2010-05-20 | 2011-11-24 | Sergiy Lozovsky | Apparatus for Improved Efficiency of an Air Conversion Device |
| CN102384564B (en) * | 2010-09-02 | 2015-06-03 | 乐金电子(天津)电器有限公司 | Indoor machine of air-conditioner |
| CN102116314B (en) * | 2011-04-05 | 2012-11-07 | 湖南科力尔电机有限公司 | Cross-flow fan of composite wire blade impeller |
| JP5678952B2 (en) * | 2012-12-28 | 2015-03-04 | 株式会社富士通ゼネラル | Air conditioner |
| US9404511B2 (en) * | 2013-03-13 | 2016-08-02 | Robert Bosch Gmbh | Free-tipped axial fan assembly with a thicker blade tip |
| CN103335390B (en) * | 2013-06-24 | 2016-01-20 | 青岛海信日立空调系统有限公司 | A kind of heat exchanger for air-conditioner indoor machine fin flow guiding structure |
| US20160363343A1 (en) * | 2013-11-26 | 2016-12-15 | Daikin Industries, Ltd. | Indoor unit |
| WO2016067408A1 (en) * | 2014-10-30 | 2016-05-06 | 三菱電機株式会社 | Air conditioner |
| CN105971908B (en) * | 2016-05-05 | 2018-07-06 | 四川圣锦高新科技股份有限公司 | A kind of noise reduction draft mechanism and through-flow electric appliance |
| JP6369522B2 (en) * | 2016-11-21 | 2018-08-08 | ダイキン工業株式会社 | Indoor unit of air conditioner |
| WO2018163360A1 (en) * | 2017-03-09 | 2018-09-13 | 三菱電機株式会社 | Air conditioner indoor unit |
| CN206917925U (en) * | 2017-06-30 | 2018-01-23 | 广东美的环境电器制造有限公司 | Tubular wine wheel and warm-air drier |
| CN107687671B (en) * | 2017-08-25 | 2023-11-14 | 珠海凌达压缩机有限公司 | Indoor unit and air conditioning system |
| CN108443977B (en) * | 2018-03-05 | 2021-03-16 | 广东美的制冷设备有限公司 | Window type air conditioning equipment |
| CA3126005C (en) * | 2020-10-13 | 2023-09-26 | Chongqing Midea Air-Conditioning Equipment Co., Ltd. | Air duct component for cross-flow impeller and air conditioning apparatus having same |
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| WO2002029331A1 (en) * | 2000-09-29 | 2002-04-11 | Mitsubishi Denki Kabushiki Kaisha | Air conditioner |
| JP2005274051A (en) * | 2004-03-25 | 2005-10-06 | Mitsubishi Electric Corp | Air-conditioner |
| JP5044686B2 (en) * | 2010-09-15 | 2012-10-10 | 株式会社三菱東京Ｕｆｊ銀行 | Mail non-delivery judgment device and program |
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| JPH01193099A (en) * | 1988-01-27 | 1989-08-03 | Diesel Kiki Co Ltd | Impeller of centrifugal flower |
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2008
- 2008-11-26 KR KR20080117860A patent/KR101485609B1/en active IP Right Grant
-
2009
- 2009-08-13 ES ES09167807T patent/ES2401533T3/en active Active
- 2009-08-13 EP EP09167807A patent/EP2192354B1/en not_active Not-in-force
- 2009-10-13 CN CN2009102063061A patent/CN101737870B/en not_active Expired - Fee Related
- 2009-10-20 US US12/582,111 patent/US20100126206A1/en not_active Abandoned
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002029331A1 (en) * | 2000-09-29 | 2002-04-11 | Mitsubishi Denki Kabushiki Kaisha | Air conditioner |
| CN1392940A (en) * | 2000-09-29 | 2003-01-22 | 三菱电机株式会社 | Air conditioner |
| JP2005274051A (en) * | 2004-03-25 | 2005-10-06 | Mitsubishi Electric Corp | Air-conditioner |
| JP5044686B2 (en) * | 2010-09-15 | 2012-10-10 | 株式会社三菱東京Ｕｆｊ銀行 | Mail non-delivery judgment device and program |
Also Published As
| Publication number | Publication date |
|---|---|
| US20100126206A1 (en) | 2010-05-27 |
| CN101737870A (en) | 2010-06-16 |
| KR20100059181A (en) | 2010-06-04 |
| EP2192354A3 (en) | 2011-03-16 |
| KR101485609B1 (en) | 2015-01-22 |
| EP2192354B1 (en) | 2013-01-09 |
| ES2401533T3 (en) | 2013-04-22 |
| EP2192354A2 (en) | 2010-06-02 |
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