CN104728954A - Air conditioner outdoor unit and air conditioner - Google Patents
Air conditioner outdoor unit and air conditioner Download PDFInfo
- Publication number
- CN104728954A CN104728954A CN201310728892.2A CN201310728892A CN104728954A CN 104728954 A CN104728954 A CN 104728954A CN 201310728892 A CN201310728892 A CN 201310728892A CN 104728954 A CN104728954 A CN 104728954A
- Authority
- CN
- China
- Prior art keywords
- heat exchanger
- air
- area
- dividing plate
- outdoor unit
- 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.)
- Granted
Links
- 230000002093 peripheral effect Effects 0.000 claims abstract description 4
- 238000005119 centrifugation Methods 0.000 claims description 19
- 239000000411 inducer Substances 0.000 claims description 13
- 239000003507 refrigerant Substances 0.000 claims description 13
- 230000000694 effects Effects 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 3
- 238000005192 partition Methods 0.000 abstract description 6
- 238000004378 air conditioning Methods 0.000 description 3
- 239000012141 concentrate Substances 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- 239000008239 natural water Substances 0.000 description 3
- 230000011218 segmentation Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
- F24F1/06—Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger
- F24F1/46—Component arrangements in separate outdoor units
- F24F1/48—Component arrangements in separate outdoor units characterised by air airflow, e.g. inlet or outlet airflow
-
- 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
- F24F1/06—Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger
- F24F1/42—Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger characterised by the use of the condensate, e.g. for enhanced cooling
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Other Air-Conditioning Systems (AREA)
Abstract
The invention provides an air conditioner outdoor unit and an air conditioner, which comprise a heat exchanger, a centrifugal fan partition plate, a flow guide ring partition plate and a motor, wherein the heat exchanger is arranged on the heat exchanger; a cavity enclosed by the heat exchanger is divided into three areas, namely a first area, a second area and a third area from top to bottom, by a centrifugal fan baffle and a guide ring baffle; the motor is a double-shaft motor, wherein the motor shaft on one side is provided with an axial flow fan blade, and the motor shaft on the other side is provided with a centrifugal fan blade; the second area is communicated with the third area through a vent hole of the guide ring partition plate, the guide ring partition plate is used for collecting airflow of the third area into the centrifugal fan blade, and the airflow entering the second area from the third area flows out from the surface of the heat exchanger on the peripheral side of the second area under the action of the centrifugal fan blade; the airflow entering the first area flows out from the upper air outlet under the action of the axial flow fan blade. The heat exchanger is divided into three sections to realize segmented concentrated heat exchange, one end of the double-shaft motor adopts the axial flow fan blade, and the other end of the double-shaft motor adopts the centrifugal fan blade, so that the heat exchange efficiency of the heat exchanger is greatly improved.
Description
Technical field
The present invention relates to refrigerating field, particularly relate to a kind of air-conditioner outdoor unit and air-conditioner.
Background technology
Existing central air-conditioning refrigerating capacity all adopts at the off-premises station unit of more than 8HP and is different from the outdoor unit of home-use central air-conditioning multi-connected machine, Fig. 1 is the Large Central Air Conditioning System off-premises station unit smallest standalone unit of existing main flow, wherein, because outdoor unit heat exchange area is large, the large diameter axial-flow leaf 1 of a general configuration is to improve air quantity.Its structure is generally top air-out mode, and heat exchanger 7 is " U " type structure, motor driving shaft stream fan blade 1 machine top air-out outdoor, and off-premises station internal body forms negative pressure, and extraneous air is discharged by top through 7 three, heat exchanger, realizes heat exchange.Because heat exchanger 7 size is larger, special in short transverse, and the negative pressure that axial-flow leaf 7 produces is limited, experiment records heat exchanger 7, and wind speed is uneven in the height direction, on one section of heat exchanger near bottom plate of outdoor unit (away from axial-flow leaf), wind speed is very low, heat exchange overall efficiency is low, region as shown in circle in Fig. 1.Simultaneously high rotating speed, big fan to electric machine support intensity and rigid requirements high, reduce parts service life.This top air-out structure can not good waterproof and dustproof, and the compressor of internal body and electric elements exist certain potential safety hazard.Owing to only adopting aerofoil fan heat exchange, also limit the possibility that heat exchanger strengthens further.
Summary of the invention
In view of the present situation of prior art, the object of the present invention is to provide a kind of air-conditioner outdoor unit and air-conditioner, adopt dual-axle motor to increase centrifugation blade, be divided into by heat exchanger three sections to realize segmentation and concentrate heat exchange, improve heat exchange efficiency.For achieving the above object, technical scheme of the present invention is as follows:
A kind of air-conditioner outdoor unit, comprises heat exchanger, centrifugal blower dividing plate, baffle liner dividing plate and motor;
Described centrifugal blower dividing plate, described baffle liner dividing plate and described motor are all arranged in the cavity that described heat exchanger surrounds, described centrifugal blower dividing plate is placed in the top of described baffle liner dividing plate, the cavity that described heat exchanger surrounds is divided into three regions by described centrifugal blower dividing plate and described baffle liner dividing plate, is respectively first area, second area and the 3rd region from top to bottom;
Described motor is dual-axle motor, and wherein the motor shaft of side installs axial-flow leaf, and the motor shaft of opposite side installs centrifugation blade;
Described second area is communicated with by the air vent of described baffle liner dividing plate with described 3rd region, described baffle liner dividing plate is used for the air flow collection in described 3rd region to flow in described centrifugation blade, and the air-flow entering described second area from described 3rd region flows out from the surface of the described heat exchanger of all sides of described second area under the effect of described centrifugation blade; The air-flow entering described first area under the effect of described axial-flow leaf from air outlet flow out.
More preferably, all side corresponding with described heat exchanger of described centrifugal blower dividing plate arranges tank, and the side-walls of described tank arranges trickle hole, and described trickle hole is spread across described heat exchanger for being dripped by the ponding in described tank.
More preferably, the sidewall of described tank is also provided with spillway hole;
Described spillway hole is greater than the bottom land distance of described trickle hole to described tank to the bottom land distance of described tank.
More preferably, described spillway hole is connected to the chassis osculum of described air-conditioner outdoor unit by flexible pipe.
More preferably, all side corresponding with described heat exchanger of described centrifugal blower dividing plate is also provided with screen pack.
More preferably, the zone line of described centrifugal blower dividing plate is higher than its peripheral regions.
More preferably, described centrifugal blower dividing plate is made up of plastic material.
More preferably, described centrifugation blade is backward centrifugation blade.
More preferably, described heat exchanger corresponding to the described heat exchanger that the described heat exchanger that described first area is corresponding, described second area are corresponding and described 3rd region is independently stream.
More preferably, the refrigerant inducer of the described heat exchanger that the refrigerant inducer of the described heat exchanger that described first area is corresponding, the refrigerant inducer of described heat exchanger that described second area is corresponding and described 3rd region are corresponding is all arranged on respective side, windward side.
Also relate to a kind of air-conditioner, comprise off-premises station, described off-premises station is the air-conditioner outdoor unit of above-mentioned arbitrary technical scheme.
The invention has the beneficial effects as follows:
Air-conditioner outdoor unit of the present invention and air-conditioner, be divided into heat exchanger three sections to realize segmentation and concentrate heat exchange, adopts dual-axle motor, and one end of dual-axle motor adopts axial-flow leaf, and the other end adopts centrifugation blade, improves heat exchange efficiency; Centrifugal blower dividing plate is both waterproof, dust-proof, and also can collect natural water source, heat exchanger cools, and effectively prevents other foreign matters such as rainwater from entering internal body, improves the environment for use of internal body electric elements, improves security performance and the reliability of electrical equipment.Change heat exchanger flow circuit layout according to three sections of different windward, increase heat exchange efficiency further; Meanwhile, break through the restriction of traditional single blower fan heat exchanger height, heat exchanger height can be increased further according to actual conditions, improve single-unit cold, strengthen product competitiveness.
Accompanying drawing explanation
Fig. 1 is the structural representation of the air-conditioner outdoor unit of prior art;
Fig. 2 is the structural representation of air-conditioner outdoor unit of the present invention;
Fig. 3 is the heat exchanger structure schematic diagram of air-conditioner outdoor unit of the present invention;
The structural representation of the centrifugal blower dividing plate that Fig. 4 is air-conditioner outdoor unit shown in Fig. 2.
Detailed description of the invention
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, air-conditioner outdoor unit of the present invention and air-conditioner are further elaborated.Should be appreciated that specific embodiment described herein only for explaining the present invention, being not intended to limit the present invention.
With reference to Fig. 2 to Fig. 4, air-conditioner outdoor unit one embodiment of the present invention comprises heat exchanger 7, centrifugal blower dividing plate 4, baffle liner dividing plate 6 and motor 2;
Heat exchanger 7 is U-shaped heat exchanger, centrifugal blower dividing plate 4, baffle liner dividing plate 6 and motor 2 are all arranged in the cavity that heat exchanger 7 surrounds, centrifugal blower dividing plate 4 is placed in the top of baffle liner dividing plate 6, the cavity that heat exchanger 7 surrounds is centrifuged draught fan partition plate 4 and baffle liner dividing plate 6 is divided into three regions, is respectively first area I, second area II and the 3rd region III from top to bottom;
Motor 2 is dual-axle motor, and motor 2 is fixed on electric machine support 3, and wherein the motor shaft of side installs axial-flow leaf 1, and the motor shaft of opposite side installs centrifugation blade 5, and centrifugation blade 5 is backward centrifugation blade.Centrifugal blower dividing plate 4 preferably adopts plastic material to make.
Second area II is communicated with by the air vent of baffle liner dividing plate 6 with the 3rd region III, baffle liner dividing plate 6 for by the air draught afflux in the 3rd region III in centrifugation blade 5, the air draught that the 3rd region III enters second area II flows out from the surface of the heat exchanger 7 of second area II week side under the effect of centrifugation blade 5; The air-flow entering first area I under the effect of axial-flow leaf 1 from air outlet flow out, the concrete flow direction of air draught is as shown in the direction of arrow in Fig. 2.
Whole heat exchanger 7 is centrifuged draught fan partition plate 4, baffle liner dividing plate 6 is divided into I, II, III 3 regions, axial-flow leaf 1 can realize I region heat exchanger cooling, because heat exchange area reduces, the size of axial-flow leaf 1 suitably can be reduced under the prerequisite ensureing heat exchange efficiency, reduce costs, reduce motor load.On the contrary, also can increase heat exchanger height further according to actual conditions, improve single-unit cold, strengthen product competitiveness, break through the restriction of traditional single blower fan heat exchanger height.The air inlet of centrifugation blade 5 and air outlet realize the cooling of II, III region heat exchanger, obtain good heat exchange efficiency.
As a kind of embodiment, the all side corresponding with heat exchanger 7 of centrifugal blower dividing plate 4 arranges tank 41, the side-walls of tank 41 arranges trickle hole 42, trickle hole 42 is spread across heat exchanger 7 for being dripped by the ponding in tank 41, natural water source is utilized to carry out heat exchanger cooling, economize on resources, low-carbon environment-friendly; Preferably, the sidewall of tank 41 is also provided with spillway hole 43; The bottom land distance of spillway hole 43 screw clamp 41 is greater than the bottom land distance of trickle hole 42 screw clamp 41, and spillway hole 43 is connected to the chassis osculum of air-conditioner outdoor unit by flexible pipe, and object is to be discharged to outside unit by spillway hole 43 when the water of tank 41 exceedes a certain amount of.
The all side corresponding with heat exchanger 7 of centrifugal blower dividing plate 4 is also provided with screen pack.Tank 41 and screen pack are set, directly drench on heat exchanger 7 after rainwater-collecting can being filtered, increase heat exchange efficiency.The zone line of centrifugal blower dividing plate 4, higher than its peripheral regions, is convenient in rainwater-collecting screw clamp 41, and centrifugal blower dividing plate 4 effectively prevents rainwater from directly contacting with unit internal component.
As a kind of embodiment, the heat exchanger 7 of the heat exchanger 7 of first area I correspondence, the heat exchanger 7 of second area II correspondence and the 3rd region III correspondence is independently stream.Namely heat exchanger 7 is divided into three sections of independent streams, thus stream is simplified greatly, enhances productivity.
Preferably, the refrigerant inducer of the refrigerant inducer of the refrigerant inducer of the heat exchanger 7 of first area I correspondence, the heat exchanger 7 of second area II correspondence and the heat exchanger 7 of the 3rd region III correspondence is all arranged on respective side, windward side, improves heat exchange efficiency further.In Fig. 3, shown in dotted line frame, part represents the refrigerant inducer of heat exchanger, the refrigerant inducer of the refrigerant inducer of the heat exchanger 7 of first area I correspondence and the heat exchanger 7 of the 3rd region III correspondence all arranges the lateral surface of heat exchanger, and the refrigerant inducer of the heat exchanger 7 of second area II correspondence is arranged on the medial surface of heat exchanger 7.
Also relate to a kind of air-conditioner, comprise the air-conditioner outdoor unit of technique scheme, because air-conditioner is prior art except air-conditioner outdoor unit, repeat no longer one by one herein.
The air-conditioner outdoor unit of above embodiment and air-conditioner, be divided into heat exchanger three sections to realize segmentation and concentrate heat exchange, adopts dual-axle motor, and one end of dual-axle motor adopts axial-flow leaf, and the other end adopts centrifugation blade, improves heat exchange efficiency; Centrifugal blower dividing plate is both waterproof, dust-proof, and also can collect natural water source, heat exchanger cools, and effectively prevents other foreign matters such as rainwater from entering internal body, improves the environment for use of internal body electric elements, improves security performance and the reliability of electrical equipment.Change heat exchanger flow circuit layout according to three sections of different windward, increase heat exchange efficiency further; Meanwhile, break through the restriction of traditional single blower fan heat exchanger height, heat exchanger height can be increased further according to actual conditions, improve single-unit cold, strengthen product competitiveness.
The above embodiment only have expressed several embodiment of the present invention, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.
Claims (11)
1. an air-conditioner outdoor unit, comprises heat exchanger, it is characterized in that:
Also comprise centrifugal blower dividing plate, baffle liner dividing plate and motor;
Described centrifugal blower dividing plate, described baffle liner dividing plate and described motor are all arranged in the cavity that described heat exchanger surrounds, described centrifugal blower dividing plate is placed in the top of described baffle liner dividing plate, the cavity that described heat exchanger surrounds is divided into three regions by described centrifugal blower dividing plate and described baffle liner dividing plate, is respectively first area, second area and the 3rd region from top to bottom;
Described motor is dual-axle motor, and wherein the motor shaft of side installs axial-flow leaf, and the motor shaft of opposite side installs centrifugation blade;
Described second area is communicated with by the air vent of described baffle liner dividing plate with described 3rd region, described baffle liner dividing plate is used for the air flow collection in described 3rd region to flow in described centrifugation blade, and the air-flow entering described second area from described 3rd region flows out from the surface of the described heat exchanger of all sides of described second area under the effect of described centrifugation blade; The air-flow entering described first area under the effect of described axial-flow leaf from air outlet flow out.
2. air-conditioner outdoor unit according to claim 1, is characterized in that:
The all side corresponding with described heat exchanger of described centrifugal blower dividing plate arranges tank, and the side-walls of described tank arranges trickle hole, and described trickle hole is spread across described heat exchanger for being dripped by the ponding in described tank.
3. air-conditioner outdoor unit according to claim 2, is characterized in that:
The sidewall of described tank is also provided with spillway hole;
Described spillway hole is greater than the bottom land distance of described trickle hole to described tank to the bottom land distance of described tank.
4. air-conditioner outdoor unit according to claim 3, is characterized in that:
Described spillway hole is connected to the chassis osculum of described air-conditioner outdoor unit by flexible pipe.
5. air-conditioner outdoor unit according to claim 3, is characterized in that:
The all side corresponding with described heat exchanger of described centrifugal blower dividing plate is also provided with screen pack.
6. the air-conditioner outdoor unit according to any one of claim 1-5, is characterized in that:
The zone line of described centrifugal blower dividing plate is higher than its peripheral regions.
7. air-conditioner outdoor unit according to claim 6, is characterized in that:
Described centrifugal blower dividing plate is made up of plastic material.
8. the air-conditioner outdoor unit according to any one of claim 1-5, is characterized in that:
Described centrifugation blade is backward centrifugation blade.
9. the air-conditioner outdoor unit according to any one of claim 1-5, is characterized in that:
Described heat exchanger corresponding to the described heat exchanger that described heat exchanger corresponding to described first area, described second area are corresponding and described 3rd region is independently stream.
10. air-conditioner outdoor unit according to claim 9, is characterized in that:
The refrigerant inducer of described heat exchanger corresponding to the refrigerant inducer of the described heat exchanger that the refrigerant inducer of the described heat exchanger that described first area is corresponding, described second area are corresponding and described 3rd region is all arranged on respective side, windward side.
11. 1 kinds of air-conditioners, comprise off-premises station, it is characterized in that:
Described off-premises station is the air-conditioner outdoor unit described in any one of claim 1-10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310728892.2A CN104728954B (en) | 2013-12-24 | 2013-12-24 | Air conditioner outdoor unit and air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310728892.2A CN104728954B (en) | 2013-12-24 | 2013-12-24 | Air conditioner outdoor unit and air conditioner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104728954A true CN104728954A (en) | 2015-06-24 |
| CN104728954B CN104728954B (en) | 2017-06-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310728892.2A Active CN104728954B (en) | 2013-12-24 | 2013-12-24 | Air conditioner outdoor unit and air conditioner |
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| Country | Link |
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| CN (1) | CN104728954B (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106885340A (en) * | 2017-03-16 | 2017-06-23 | 青岛海尔空调器有限总公司 | The control method of air conditioner room unit zoned air |
| CN107084426A (en) * | 2017-03-16 | 2017-08-22 | 青岛海尔空调器有限总公司 | Air conditioner room unit |
| CN107421085A (en) * | 2017-09-05 | 2017-12-01 | 深圳市大众新源节能科技有限公司 | A kind of high-effect energy-saving heat-exchanger for central air-conditioning |
| CN107575953A (en) * | 2017-08-29 | 2018-01-12 | 珠海格力电器股份有限公司 | Air conditioner outdoor unit, air conditioner and control method of air conditioner outdoor unit |
| CN107995876A (en) * | 2015-08-12 | 2018-05-04 | 豪威株式会社 | Air purifier |
| CN108007538A (en) * | 2017-12-05 | 2018-05-08 | 湖南景程电子科技有限公司 | A kind of portable wireless transmission holds weighing instruments |
| CN108489158A (en) * | 2018-03-27 | 2018-09-04 | 浙江杭强制冷设备有限公司 | A kind of U-shaped condenser of freezing unit |
| CN112161435A (en) * | 2020-10-14 | 2021-01-01 | 中国兵器科学研究院宁波分院 | Rapid cooling vacuum drying device and method |
| CN115419955A (en) * | 2022-09-02 | 2022-12-02 | 珠海格力电器股份有限公司 | Air condensing units shell structure and air condensing units |
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| CN1508482A (en) * | 2000-01-14 | 2004-06-30 | 东芝开利株式会社 | Outdoor device of air-conditioner |
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| US11007466B2 (en) | 2015-08-12 | 2021-05-18 | Coway Co., Ltd. | Air purifier with hinged filter frame |
| US11654387B2 (en) | 2015-08-12 | 2023-05-23 | Coway Co., Ltd. | Air purifier with hinged filter frame |
| US11654388B2 (en) | 2015-08-12 | 2023-05-23 | Coway Co., Ltd. | Air purifier with hinged filter frame |
| CN107995876A (en) * | 2015-08-12 | 2018-05-04 | 豪威株式会社 | Air purifier |
| US11666848B2 (en) | 2015-08-12 | 2023-06-06 | Coway Co., Ltd. | Air purifier with hinged filter frame |
| US11007467B2 (en) | 2015-08-12 | 2021-05-18 | Coway Co., Ltd. | Air purifier with hinged filter frame |
| US10821389B2 (en) | 2015-08-12 | 2020-11-03 | Coway Co., Ltd. | Air purifier with hinged filter frame |
| US10918984B2 (en) | 2015-08-12 | 2021-02-16 | Coway Co., Ltd. | Air purifier with hinged filter frame |
| CN107084426A (en) * | 2017-03-16 | 2017-08-22 | 青岛海尔空调器有限总公司 | Air conditioner room unit |
| CN106885340A (en) * | 2017-03-16 | 2017-06-23 | 青岛海尔空调器有限总公司 | The control method of air conditioner room unit zoned air |
| CN107575953A (en) * | 2017-08-29 | 2018-01-12 | 珠海格力电器股份有限公司 | Air conditioner outdoor unit, air conditioner and control method of air conditioner outdoor unit |
| CN107421085A (en) * | 2017-09-05 | 2017-12-01 | 深圳市大众新源节能科技有限公司 | A kind of high-effect energy-saving heat-exchanger for central air-conditioning |
| CN108007538A (en) * | 2017-12-05 | 2018-05-08 | 湖南景程电子科技有限公司 | A kind of portable wireless transmission holds weighing instruments |
| CN108489158A (en) * | 2018-03-27 | 2018-09-04 | 浙江杭强制冷设备有限公司 | A kind of U-shaped condenser of freezing unit |
| CN112161435A (en) * | 2020-10-14 | 2021-01-01 | 中国兵器科学研究院宁波分院 | Rapid cooling vacuum drying device and method |
| CN112161435B (en) * | 2020-10-14 | 2022-06-28 | 中国兵器科学研究院宁波分院 | Rapid cooling vacuum drying device and method |
| CN115419955A (en) * | 2022-09-02 | 2022-12-02 | 珠海格力电器股份有限公司 | Air condensing units shell structure and air condensing units |
| CN115419955B (en) * | 2022-09-02 | 2024-07-23 | 珠海格力电器股份有限公司 | Air condensing units shell structure and air condensing units |
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|---|---|
| CN104728954B (en) | 2017-06-20 |
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