CN105546666A - Window type air conditioner - Google Patents
Window type air conditioner Download PDFInfo
- Publication number
- CN105546666A CN105546666A CN201610005802.0A CN201610005802A CN105546666A CN 105546666 A CN105546666 A CN 105546666A CN 201610005802 A CN201610005802 A CN 201610005802A CN 105546666 A CN105546666 A CN 105546666A
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- Prior art keywords
- line
- air conditioner
- section
- volute
- wind wheel
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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
- F24F1/02—Self-contained room units for air-conditioning, i.e. with all apparatus for treatment installed in a common casing
- F24F1/022—Self-contained room units for air-conditioning, i.e. with all apparatus for treatment installed in a common casing comprising a compressor cycle
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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
- 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
- F24F13/24—Means for preventing or suppressing noise
- F24F2013/247—Active noise-suppression
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2221/00—Details or features not otherwise provided for
- F24F2221/17—Details or features not otherwise provided for mounted in a wall
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Air-Conditioning Room Units, And Self-Contained Units In General (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention provides a window type air conditioner. The window type air conditioner comprises a shell body and a cross-flow fan. The front end of the shell body is provided with an air inlet and an air outlet located above the air inlet. The cross-flow fan is arranged in the shell body and provided with a wind wheel, a volute and a volute tongue which is located on the front side of the volute. The air inlet and the air outlet communicate through a fan air channel limited by the volute and the volute tongue. The projection, in the plane perpendicular to the rotation axis of the wind wheel, of the inner surface of the volute forms the volute profile line of the volute, and the volute profile line is divided into an upper section and a lower section through the point, closest to the rotation axis of the wind wheel, on the volute profile line. In addition, the upper section comprises three circular arc sections connected sequentially and smoothly. According to the window type air conditioner, due to the fact that the volute profile line of the volute comprises the three circular arc sections, the special streamline air channel design structure enables air inflow and air outflow of the window type air conditioner to be smoother, and accordingly noise generated by the window type air conditioner is significantly lowered.
Description
Technical field
The present invention relates to air-conditioning technique, particularly relate to a kind of window air conditioner.
Background technology
Window air conditioner is normally arranged on wall, a part for window air conditioner is positioned at outdoor, a part is positioned at indoor, the casing being positioned at outdoor section is provided with the structure such as compressor, outdoor heat exchanger, the casing being positioned at indoor section is provided with the structures such as indoor heat exchanger, for split air conditioner, window air conditioner is the integrating device of the refrigeration system of indoor and outside.But existing window air conditioner product, the noise produced in indoor, generally more than 50 decibels, is not suitable for using in the place needed peace and quiet.
Summary of the invention
Object of the present invention is intended at least one defect overcoming existing window air conditioner, provides the window air conditioner that a kind of noise is low.
For this reason, the invention provides a kind of window air conditioner, it can comprise:
Housing, its front end has air inlet and is positioned at the air outlet above air inlet; With
Cross flow fan, is arranged in housing, and has wind wheel, spiral case and be positioned at the snail tongue on front side of spiral case, and the fan air channel that spiral case and snail tongue limit is communicated with air inlet and air outlet;
The projection of inner surface in a plane perpendicular to the rotation of wind wheel of spiral case forms the spiral case inlet pressure of spiral case, and spiral case inlet pressure is divided into top section and compresses lower section by the point that the rotation of distance wind wheel on it is nearest; And
Top section comprises three circle segment be smoothly connected successively.
Alternatively, the line between the upper end of top section and the lower end of compresses lower section is the first line; The rotation subpoint planar of wind wheel is positioned on the first line.
Alternatively, the ratio of the distance of the distance of the upper end of subpoint distance top section and the lower end of subpoint distance compresses lower section is 0.5 to 0.7.
Alternatively, the line between the upper end of top section and the lower end of compresses lower section is the first line; Line between the upper end of compresses lower section and the lower end of compresses lower section is the second line; Angle between first line and the second line is 18 ° to 32 °.
Alternatively, the upper end of top section is positioned at the vertical top of the lower end of compresses lower section.
Alternatively, compresses lower section bends rearwardly and upwardly from its lower end and extends to its upper end.
Alternatively, the line between the rotation of wind wheel subpoint planar and the top and bottom of top section is respectively the 3rd line and the 4th line, and the angle between the 3rd line and the 4th line is 118 ° to 132 °.
Alternatively, the projection planar of the inner surface of snail tongue forms the snail tongue molded line of snail tongue, and line between the rotation of the point that on snail tongue molded line, the rotation of distance wind wheel is nearest and wind wheel subpoint planar and the angle between the 3rd line are 48 ° to 62 °.
Alternatively, window air conditioner, also comprises: evaporimeter, to be arranged in housing and to be in the air inlet of fan air channel; And evaporimeter is two-part heat exchanger or multisection type heat exchanger, the lower end of its lower end and spiral case contacts against, and its upper end is positioned at the front side of snail tongue.
Alternatively, three circle segment are respectively the first circle segment being in bottom, are in the three-arc section on top, and are in the second circle segment between the first circle segment and three-arc section; And the radii ratio of the first circle segment and the second circle segment is 0.65 to 0.8; The radius ratio of the second circle segment and three-arc section is 0.8 to 0.85.
In window air conditioner of the present invention, the spiral case inlet pressure due to spiral case comprises three circle segment, and special streamlined Duct design structure makes the air intake of window air conditioner, air-out more smooth and easy, significantly reduces the noise that window air conditioner produces.
Further, due in window air conditioner of the present invention, adopt air-out on front lower inlet side, hommization air-out design can be realized; Evaporimeter is two-part heat exchanger, significantly increases heat exchange area, improves heat exchange efficiency; The respective special construction of snail tongue, spiral case, wind wheel and evaporimeter and between special position relationship air inlet/outlet ratio can be made to be about 2 to 1, make air inlet/outlet area agree to the greatest extent can realize maximization, not only energy-efficient, and create a further reduction the noise of window air conditioner.
According to hereafter by reference to the accompanying drawings to the detailed description of the specific embodiment of the invention, those skilled in the art will understand above-mentioned and other objects, advantage and feature of the present invention more.
Accompanying drawing explanation
Hereinafter describe specific embodiments more of the present invention with reference to the accompanying drawings by way of example, and not by way of limitation in detail.Reference numeral identical in accompanying drawing denotes same or similar parts or part.It should be appreciated by those skilled in the art that these accompanying drawings may not be drawn in proportion.In accompanying drawing:
Fig. 1 is the schematic diagram of window air conditioner according to an embodiment of the invention;
Fig. 2 is the schematic cross sectional views of the partial structurtes of window air conditioner according to an embodiment of the invention;
Fig. 3 is the schematic explosive view of the partial structurtes of window air conditioner shown in Fig. 2.
Detailed description of the invention
Fig. 1 is the schematic diagram of window air conditioner according to an embodiment of the invention.As shown in Figure 1, and referring to figs. 2 and 3, the embodiment of the present invention provides a kind of window air conditioner, this window air conditioner can comprise housing 20, and be positioned at the compressor of housing 20, condenser, throttling arrangement, evaporimeter 30, for the centrifugal blower of condenser heat radiation and the cross flow fan 40 for blowing cold wind to indoor.Particularly, the front end of housing 20 can have air inlet 21 and air outlet 22, and air outlet 22 can be positioned at the top of air inlet 21.Such as, housing 20 can comprise procapsid, and procapsid can comprise vertical plate and be positioned at the upper twisted plate on the upside of vertical plate.Air inlet 21 can be arranged in vertical plate; Air outlet 22 can be arranged on twisted plate, and to make window air conditioner from front lower air intake, air-out from side, can realize hommization air-out design.
The snail tongue 43 that cross flow fan 40 can have wind wheel 41, spiral case 42 and be positioned on front side of spiral case 42, the fan air channel that spiral case 42 and snail tongue 43 limit is communicated with air inlet 21 and air outlet 22, and evaporimeter 30 can be arranged at the air inlet of fan air channel.To make air-flow enter housing 20 from air inlet 21, after evaporimeter 30 heat exchange, flow out window air conditioner through fan air channel and air outlet 22, thus blow cold wind to indoor.The projection of inner surface in a plane perpendicular to the rotation of wind wheel 41 of spiral case 42 forms the spiral case inlet pressure of spiral case 42, and spiral case inlet pressure is divided into top section 421 and compresses lower section 422 by the point that the rotation of distance wind wheel 41 on it is nearest.Especially, the top section 421 of spiral case inlet pressure comprises three circle segment be smoothly connected successively, and to make air current flow in fan air channel more smooth and easy, the noise of cross flow fan 40 reduces, thus reduces the noise of window air conditioner.
In certain embodiments of the present invention, three circle segment are respectively the first circle segment being in bottom, are in the three-arc section on top, and are in the second circle segment between the first circle segment and three-arc section.The radii ratio of the first circle segment and the second circle segment can be 0.65 to 0.8; The radius ratio of the second circle segment and three-arc section can be 0.8 to 0.85.
In some embodiments of the invention, the line between the upper end of top section 421 and the lower end of compresses lower section 422 is the first line; Line between the upper end of compresses lower section 422 and the lower end of compresses lower section 422 is the second line; Angle between first line and the second line is 18 ° to 32 °.Preferably, the upper end of top section 421 is positioned at the vertical top of the lower end of compresses lower section 422.The rotation subpoint planar of wind wheel 41 is positioned on the first line, and the ratio of the distance of the lower end of the distance of the upper end of subpoint distance top section 421 and subpoint distance compresses lower section 422 is 0.5 to 0.7.Compresses lower section 422 bends rearwardly and upwardly from its lower end and extends to its upper end, it can be specifically step design, such as, compresses lower section 422 can comprise at least one tilting section and at least one vertical section of setting gradually from bottom to top, and connects the linkage section of top section 421.Particularly, compresses lower section 422 can comprise 3 tilting sections and 3 vertical sections, and connects the linkage section of last vertical section and top section 421.This linkage section can be tilting section or curved bend tune.
In this embodiment, the line between the rotation of wind wheel 41 subpoint planar and the top and bottom of top section 421 is respectively the 3rd line and the 4th line.Angle between 3rd line and the 4th line is 118 ° to 132 °.The projection planar of the inner surface of snail tongue 43 forms the snail tongue molded line of snail tongue 43, and line between the rotation of the point that on snail tongue molded line, the rotation of distance wind wheel 41 is nearest and wind wheel 41 subpoint planar and the angle between the 3rd line are 48 ° to 62 °.The window air conditioner of this embodiment can make the air inlet/outlet ratio of cross flow fan 40 be about 2:1 due to the special structure of spiral case 42, snail tongue 43 and wind wheel 41 and position relationship, makes air inlet/outlet area maximize design, energy-efficient, reduces noise.
In some embodiments of the invention, evaporimeter 30 is two-part heat exchanger or multisection type heat exchanger, and the lower end of its lower end and spiral case 42 contacts against, and its upper end is positioned at the front side of snail tongue 43.Preferably, in embodiment as shown in Figure 1 to Figure 3, evaporimeter 30 is preferably two-part heat exchanger, and it can comprise the vertical section heat exchanger being in top and the tilting section heat exchanger being in below, effectively can increase incoming air area than plate-type evaporator 30, highly reach 90% of this window air conditioner height, area reaches 100% of this window air conditioner front face area, not only can increase heat exchange area, and air intake can be made more smooth and easy, window air conditioner compact conformation, volume is less.
Particularly, in some embodiments of the invention, the diameter of wind wheel 41 can be 100mm to 110mm.The distance of the upper end of subpoint distance top section 421 is 25:39 with the ratio of the distance of the lower end of subpoint distance compresses lower section 422.Between the first line and the second line, angle can be 20 ° or 30 °.Angle between 3rd line and the 4th line is about 125 °.Line between the point that on snail tongue molded line, the rotation of distance wind wheel 41 is nearest and the rotation of wind wheel 41 subpoint planar and between the 3rd line angle can be 55 °.Minimum range between wind wheel 41 and snail tongue 43, spiral case 42 can be 5mm to 10mm.The radius of the first circle segment can be 70mm, and the radius of the second circle segment can be 90mm, and the radius of three-arc section can be 108mm.This window air conditioner can make air-flow unobstructed without unnecessary vortex flow, effectively can reduce windage, increase air quantity, effective reduction noise, about 10 decibels can be reduced compared to existing most of window air conditioner, expand the scope of application of window air conditioner, be more suitable for living environment, can product competitiveness be improved.
So far, those skilled in the art will recognize that, although multiple exemplary embodiment of the present invention is illustrate and described herein detailed, but, without departing from the spirit and scope of the present invention, still can directly determine or derive other modification many or amendment of meeting the principle of the invention according to content disclosed by the invention.Therefore, scope of the present invention should be understood and regard as and cover all these other modification or amendments.
Claims (10)
1. a window air conditioner, is characterized in that, comprising:
Housing, its front end has air inlet and is positioned at the air outlet above described air inlet; With
Cross flow fan, is arranged in described housing, and has wind wheel, spiral case and be positioned at the snail tongue on front side of described spiral case, and the fan air channel that described spiral case and described snail tongue limit is communicated with described air inlet and described air outlet;
The projection of inner surface in a plane perpendicular to the rotation of described wind wheel of described spiral case forms the spiral case inlet pressure of described spiral case, and described spiral case inlet pressure is divided into top section and compresses lower section by the point that the rotation of wind wheel described in distance on it is nearest; And
Described top section comprises three circle segment be smoothly connected successively.
2. window air conditioner according to claim 1, is characterized in that,
Line between the upper end of described top section and the lower end of described compresses lower section is the first line;
The subpoint of rotation in described plane of described wind wheel is positioned on described first line.
3. window air conditioner according to claim 2, is characterized in that,
Described subpoint is 0.5 to 0.7 apart from the distance of the upper end of described top section and described subpoint apart from the ratio of the distance of the lower end of described compresses lower section.
4. window air conditioner according to claim 1, is characterized in that,
Line between the upper end of described top section and the lower end of described compresses lower section is the first line;
Line between the upper end of described compresses lower section and the lower end of described compresses lower section is the second line;
Angle between described first line and described second line is 18 ° to 32 °.
5. window air conditioner according to claim 1, is characterized in that,
The upper end of described top section is positioned at the vertical top of the lower end of described compresses lower section.
6. window air conditioner according to claim 1, is characterized in that,
Described compresses lower section bends rearwardly and upwardly from its lower end and extends to its upper end.
7. window air conditioner according to claim 1, is characterized in that,
Line between subpoint in described plane of the rotation of described wind wheel and the top and bottom of described top section is respectively the 3rd line and the 4th line, and
Angle between described 3rd line and described 4th line is 118 ° to 132 °.
8. window air conditioner according to claim 7, is characterized in that,
The projection of inner surface in described plane of described snail tongue forms the snail tongue molded line of described snail tongue, and
Line between the point that on described snail tongue molded line, described in distance, the rotation of wind wheel is nearest and the subpoint of the rotation of described wind wheel in described plane and the angle between described 3rd line are 48 ° to 62 °.
9. window air conditioner according to claim 1, is characterized in that, also comprises:
Evaporimeter, to be arranged in described housing and to be in the air inlet of described fan air channel; And
Described evaporimeter is two-part heat exchanger or multisection type heat exchanger, and the lower end of its lower end and described spiral case contacts against, and its upper end is positioned at the front side of described snail tongue.
10. window air conditioner according to claim 1, is characterized in that,
Described three circle segment are respectively the first circle segment being in bottom, are in the three-arc section on top, and are in the second circle segment between the first circle segment and described three-arc section; And
The radii ratio of the first circle segment and the second circle segment is 0.65 to 0.8;
The radius ratio of the second circle segment and three-arc section is 0.8 to 0.85.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610005802.0A CN105546666B (en) | 2016-01-05 | 2016-01-05 | Window air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610005802.0A CN105546666B (en) | 2016-01-05 | 2016-01-05 | Window air conditioner |
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| Publication Number | Publication Date |
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| CN105546666A true CN105546666A (en) | 2016-05-04 |
| CN105546666B CN105546666B (en) | 2019-05-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201610005802.0A Active CN105546666B (en) | 2016-01-05 | 2016-01-05 | Window air conditioner |
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Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106196314A (en) * | 2016-07-05 | 2016-12-07 | 青岛海尔空调器有限总公司 | Flat window machine |
| CN106288006A (en) * | 2016-08-25 | 2017-01-04 | 赵原晓 | A kind of low-noise window-type air conditioner |
| CN108361888A (en) * | 2018-03-05 | 2018-08-03 | 广东美的制冷设备有限公司 | Air-conditioning equipment |
| CN108375125A (en) * | 2018-03-05 | 2018-08-07 | 广东美的制冷设备有限公司 | Window air conditioner equipment |
| CN108397846A (en) * | 2018-03-05 | 2018-08-14 | 广东美的制冷设备有限公司 | Air-conditioning equipment |
| CN108443978A (en) * | 2018-03-05 | 2018-08-24 | 广东美的制冷设备有限公司 | Air-conditioning equipment |
| CN108443977A (en) * | 2018-03-05 | 2018-08-24 | 广东美的制冷设备有限公司 | Window air conditioner equipment |
| CN108469073A (en) * | 2018-03-05 | 2018-08-31 | 广东美的制冷设备有限公司 | Window air conditioner equipment |
| CN108469074A (en) * | 2018-03-05 | 2018-08-31 | 广东美的制冷设备有限公司 | Air-conditioning equipment |
| CN108488936A (en) * | 2018-03-05 | 2018-09-04 | 广东美的制冷设备有限公司 | Window air conditioner |
| CN108488902A (en) * | 2018-03-05 | 2018-09-04 | 广东美的制冷设备有限公司 | Window air conditioner equipment |
| CN108488903A (en) * | 2018-03-05 | 2018-09-04 | 广东美的制冷设备有限公司 | Air-conditioning equipment |
| CN109442583A (en) * | 2018-10-25 | 2019-03-08 | Tcl空调器(中山)有限公司 | A kind of window air conditioner |
| WO2019169718A1 (en) * | 2018-03-05 | 2019-09-12 | 广东美的制冷设备有限公司 | Air conditioning device |
| WO2019192086A1 (en) * | 2018-04-04 | 2019-10-10 | 广东美的制冷设备有限公司 | Integral air-conditioner |
| CN114060912A (en) * | 2020-07-29 | 2022-02-18 | 广东美的制冷设备有限公司 | Air conditioner |
| CN114623500A (en) * | 2020-12-11 | 2022-06-14 | 广东美的白色家电技术创新中心有限公司 | Air conditioner indoor unit and air conditioner |
| US11624514B2 (en) * | 2019-02-03 | 2023-04-11 | Gd Midea Air-Conditioning Equipment Co., Ltd. | Window air conditioner with water receiving pan and filter screen support |
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Cited By (27)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106196314B (en) * | 2016-07-05 | 2019-07-23 | 青岛海尔空调器有限总公司 | Flat window machine |
| CN106196314A (en) * | 2016-07-05 | 2016-12-07 | 青岛海尔空调器有限总公司 | Flat window machine |
| CN106288006A (en) * | 2016-08-25 | 2017-01-04 | 赵原晓 | A kind of low-noise window-type air conditioner |
| CN108469073B (en) * | 2018-03-05 | 2020-07-28 | 广东美的制冷设备有限公司 | Window type air conditioning equipment |
| WO2019169718A1 (en) * | 2018-03-05 | 2019-09-12 | 广东美的制冷设备有限公司 | Air conditioning device |
| CN108443978A (en) * | 2018-03-05 | 2018-08-24 | 广东美的制冷设备有限公司 | Air-conditioning equipment |
| CN108443977A (en) * | 2018-03-05 | 2018-08-24 | 广东美的制冷设备有限公司 | Window air conditioner equipment |
| CN108469073A (en) * | 2018-03-05 | 2018-08-31 | 广东美的制冷设备有限公司 | Window air conditioner equipment |
| CN108469074A (en) * | 2018-03-05 | 2018-08-31 | 广东美的制冷设备有限公司 | Air-conditioning equipment |
| CN108488936A (en) * | 2018-03-05 | 2018-09-04 | 广东美的制冷设备有限公司 | Window air conditioner |
| CN108488902A (en) * | 2018-03-05 | 2018-09-04 | 广东美的制冷设备有限公司 | Window air conditioner equipment |
| CN108488903A (en) * | 2018-03-05 | 2018-09-04 | 广东美的制冷设备有限公司 | Air-conditioning equipment |
| 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 |
| CN108375125A (en) * | 2018-03-05 | 2018-08-07 | 广东美的制冷设备有限公司 | Window air conditioner equipment |
| CN108397846A (en) * | 2018-03-05 | 2018-08-14 | 广东美的制冷设备有限公司 | Air-conditioning equipment |
| CN108397846B (en) * | 2018-03-05 | 2020-12-29 | 广东美的制冷设备有限公司 | Air conditioning equipment |
| CN108443978B (en) * | 2018-03-05 | 2020-05-15 | 广东美的制冷设备有限公司 | Air conditioning equipment |
| CN108488903B (en) * | 2018-03-05 | 2020-07-28 | 广东美的制冷设备有限公司 | Air conditioning equipment |
| CN108361888A (en) * | 2018-03-05 | 2018-08-03 | 广东美的制冷设备有限公司 | Air-conditioning equipment |
| CN108488936B (en) * | 2018-03-05 | 2020-07-28 | 广东美的制冷设备有限公司 | Window type air conditioner |
| CN108375125B (en) * | 2018-03-05 | 2020-07-28 | 广东美的制冷设备有限公司 | Window type air conditioning equipment |
| CN108488902B (en) * | 2018-03-05 | 2020-07-28 | 广东美的制冷设备有限公司 | Window type air conditioning equipment |
| WO2019192086A1 (en) * | 2018-04-04 | 2019-10-10 | 广东美的制冷设备有限公司 | Integral air-conditioner |
| CN109442583A (en) * | 2018-10-25 | 2019-03-08 | Tcl空调器(中山)有限公司 | A kind of window air conditioner |
| US11624514B2 (en) * | 2019-02-03 | 2023-04-11 | Gd Midea Air-Conditioning Equipment Co., Ltd. | Window air conditioner with water receiving pan and filter screen support |
| CN114060912A (en) * | 2020-07-29 | 2022-02-18 | 广东美的制冷设备有限公司 | Air conditioner |
| CN114623500A (en) * | 2020-12-11 | 2022-06-14 | 广东美的白色家电技术创新中心有限公司 | Air conditioner indoor unit and air conditioner |
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