CN109028348B - Two-stage fan system, air conditioner outdoor unit and air conditioner - Google Patents
Two-stage fan system, air conditioner outdoor unit and air conditioner Download PDFInfo
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- CN109028348B CN109028348B CN201810609757.9A CN201810609757A CN109028348B CN 109028348 B CN109028348 B CN 109028348B CN 201810609757 A CN201810609757 A CN 201810609757A CN 109028348 B CN109028348 B CN 109028348B
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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
- F24F1/06—Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger
- F24F1/38—Fan details of outdoor units, e.g. bell-mouth shaped inlets or fan mountings
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Abstract
The invention provides a double-stage fan system, an air conditioner outdoor unit and an air conditioner, wherein the double-stage fan system comprises a first fan unit and a second fan unit, the first fan unit can introduce air from the upper part of the side surface of a heat exchanger to the top of the heat exchanger, the second fan unit can introduce air from the lower part of the side surface of the heat exchanger to the top of the heat exchanger, the first fan unit is positioned above the second fan unit, rotating shafts of the first fan unit and the second fan unit are coaxial and are arranged along the vertical direction, and the air conditioner outdoor unit and the air conditioner comprise the double-stage fan system. The invention can improve the uniformity of the flow field of the heat exchanger.
Description
Technical Field
The invention belongs to the technical field of air conditioners, and particularly relates to a two-stage fan system, an air conditioner outdoor unit and an air conditioner.
Background
The structure of the top-outlet outdoor unit is shown in fig. 1, and the top-outlet outdoor unit comprises a heat exchanger shell 1 'and a fan 2', wherein the heat exchanger shell 1 'is provided with an air outlet 3' and an air inlet 4', the air outlet 3' is located at the top of the heat exchanger shell, the air inlet 4 'is located at the side of the heat exchanger shell 1', the fan 2 'is an axial-flow fan, the fan 2' is rotatably arranged above the heat exchanger shell 1', the rotating shaft of the fan 2' is arranged along the vertical direction, the fan 2 'is located at the upper part of the chamber of the heat exchanger shell 1', and when the fan 2 'rotates, air enters from the air inlet 4' along the arrow direction.
However, because the height of the top-outlet outdoor unit heat exchanger is large, when the fan 2' rotates on the upper portion of the cavity of the heat exchanger housing 1', the air volume entering the cavity of the heat exchanger housing 1' from the air inlet 4' is gradually decreased from top to bottom (as shown in fig. 1, the direction of the arrow is the air circulation direction, and the length of the arrow represents the air volume entering the cavity of the heat exchanger housing 1 '), and the difference between the upper air volume and the lower air volume can be up to 3 times large, so that the distribution of the flow field of the heat exchanger is uneven, the performance of the fins of the heat exchanger is affected, the heat dissipation capacity of the upper pipeline and the lower pipeline of the heat.
Disclosure of Invention
The invention provides a double-stage fan system capable of improving the uniformity of a heat exchanger flow field, an air conditioner outdoor unit applying the double-stage fan system and an air conditioner with the air conditioner outdoor unit, aiming at the technical problems of the existing top-outlet outdoor unit heat exchanger.
In order to achieve the purpose, the invention adopts the technical scheme that:
a double-stage fan system comprises a first fan unit and a second fan unit, wherein the first fan unit can introduce air from the upper part of the side surface of a heat exchanger to the top of the heat exchanger, the second fan unit can introduce air from the lower part of the side surface of the heat exchanger to the top of the heat exchanger, the first fan unit is positioned above the second fan unit, and rotating shafts of the first fan unit and the second fan unit are coaxial and are arranged along the vertical direction.
Preferably, the first fan unit includes a first fan and a second fan, the first fan is hollow, the second fan is located inside the first fan, and the second fan and the first fan are coaxially disposed.
Preferably, the first fan includes a flow guide ring and a first fan blade, the flow guide ring is disposed along a vertical direction, the first fan blade is fixedly connected to the outside of the flow guide ring, the first fan blades are plural, and the first fan blades are disposed along the circumferential direction of the flow guide ring at intervals.
Preferably, the second fan unit includes kuppe and second flabellum, the kuppe sets up along vertical direction, the second flabellum is fixed set up in the inside of kuppe, the second flabellum is a plurality of, and is a plurality of the second flabellum is along the circumference interval setting of kuppe.
Preferably, the axial dimension of the air guide sleeve is b1And the diameter of the hollow part of the first fan is set as D2Setting the ratio of (b) to 1%1/D2)≤40％。
Preferably, the diameter of the second fan blade is set as D3And the outer diameter of the first fan is set to D1If D is more than or equal to 30%3/D1)≤70％。
Preferably, 35% ≦ (D) is set2/D1)≤75％。
An outdoor unit of an air conditioner comprises a double-stage fan system, wherein the double-stage fan system is the double-stage fan system; the heat exchanger further comprises a heat exchanger shell, a cavity is formed inside the heat exchanger shell, the heat exchanger shell is provided with an air outlet and an air inlet, the air outlet is located at the top of the heat exchanger shell, the air inlet is located on the side portion of the heat exchanger shell, the first fan unit and the second fan unit can be rotatably arranged inside the cavity of the heat exchanger shell, the first fan unit is arranged corresponding to the upper portion of the air inlet to introduce air into the air outlet from the upper portion of the air inlet, and the second fan unit is arranged corresponding to the lower portion of the air inlet to introduce air into the air outlet from the lower portion of the air inlet.
An air conditioner comprises an air conditioner outdoor unit, wherein the air conditioner outdoor unit is the heat exchanger.
Compared with the prior art, the invention has the advantages and positive effects that:
1. the first fan unit and the second fan unit form a double-stage fan system for providing power for air inlet and air outlet of the heat exchanger, the total air volume is improved, and meanwhile, the flow of the air entering the lower part of the air inlet of the heat exchanger is improved, so that the difference of the air flow between the upper part and the lower part of the air inlet of the heat exchanger is reduced, namely, the uniformity of the flow field of the heat exchanger is improved, the normal performance of the fin performance of the heat exchanger is ensured, the upper pipeline and the lower pipeline of the heat exchanger are uniformly radiated, and the performance of the whole air.
2. The first fan unit is provided with the fan structure in the form of double circles by arranging the first fan and the second fan, and in the operation process, the first fan is used as an outer-circle fan and is mainly used for sucking air at the upper part of the air inlet of the heat exchanger, and meanwhile, the second fan is used as an inner-circle fan and is mainly used for exhausting air quantity, which is introduced upwards from the air inlet of the heat exchanger, of the second fan unit, so that the condition that the air quantity of the first fan unit is increased due to the operation of the second fan unit is compensated, and the uniformity of a flow field of the heat exchanger is further improved.
3. The air conditioner outdoor unit provided by the invention is provided with the two-stage fan system, so that the uniformity of a flow field is improved, the normal performance of the fin performance of the heat exchanger is further ensured, the upper pipeline and the lower pipeline of the heat exchanger are enabled to uniformly radiate heat, and the performance of the whole air conditioner is further improved.
4. The air conditioner provided by the invention has the advantages that the uniformity of the flow field of the heat exchanger is improved by arranging the air conditioner outdoor unit with the double-stage fan system, the normal performance of the fins of the heat exchanger is further ensured, the upper pipeline and the lower pipeline of the heat exchanger uniformly radiate heat, and the performance of the whole air conditioner is further improved.
Drawings
Fig. 1 is a schematic structural view of an outdoor unit of a conventional air conditioner;
FIG. 2 is a schematic diagram of a dual-stage fan system according to the present invention;
FIG. 3 is a top view of FIG. 2;
FIG. 4 is a schematic view of FIG. 2 after the size markings;
FIG. 5 is a schematic view of FIG. 3 after the size markings;
fig. 6 is a schematic structural view of an outdoor unit of an air conditioner according to the present invention;
FIG. 7 is a schematic view of FIG. 6 showing the direction of air flow;
in the above figures: 1', a heat exchanger shell; 2', a fan; 3', an air outlet; 4', an air inlet; 1. a first fan unit; 2. a second fan unit; 3. a first fan; 4. a second fan; 5. a flow guide ring; 6. a first fan blade; 7. a pod; 8. a second fan blade; 9. a heat exchanger housing; 10. an air outlet; 11. an air inlet; 12. a first fan unit hub; 13. a third fan blade; 14. a second fan unit hub; 15. a support shaft; 16. an electric motor.
Detailed Description
The invention is described in detail below by way of exemplary embodiments. It should be understood, however, that elements, structures and features of one embodiment may be beneficially incorporated in other embodiments without further recitation.
In the description of the present invention, it is to be noted that: (1) the direction of the arrows in FIG. 7 indicate the direction of air flow after operation of the dual stage fan system; (2) the terms "inner", "outer", "upper", "lower", "front", "rear", and the like, indicate orientations or positional relationships based on positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the referred devices or elements must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention; (3) the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Referring to fig. 2 to 5, a dual-stage fan system for a top-outlet outdoor unit heat exchanger to provide power for the inlet and outlet of the heat exchanger includes a first fan unit 1 capable of introducing air from the upper portion of the side surface of the heat exchanger to the top of the heat exchanger, and a second fan unit 2 capable of introducing air from the lower portion of the side surface of the heat exchanger to the top of the heat exchanger, wherein the first fan unit 1 is located above the second fan unit 2, and the rotating shafts of the first fan unit 1 and the second fan unit 2 are coaxial and are both arranged along the vertical direction.
Based on the above, the first fan unit 1 and the second fan unit 2 form a two-stage fan system for providing power for the air inlet and the air outlet of the heat exchanger, so that the total air volume is increased, the flow of the air entering from the lower part of the air inlet of the heat exchanger is increased, the difference of the air flow between the upper part and the lower part of the air inlet of the heat exchanger is reduced, the uniformity of the flow field of the heat exchanger is improved, the normal performance of the performance of fins of the heat exchanger is ensured, the heat of the upper pipeline and the lower pipeline of the heat exchanger is uniformly radiated, and the performance.
In order to compensate for the increase of the air volume of the first fan unit 1 caused by the operation of the second fan unit 2, the first fan unit 1 may have a structure that: as shown in fig. 2 and 3, the first fan unit 1 includes a first fan 3 and a second fan 4, the first fan 3 is hollow, the second fan 4 is located inside the first fan 3, and the second fan 4 is disposed coaxially with the first fan 3.
Based on the above, in the present invention, the first fan unit 1 is provided with the fan structure in the form of the double-ring by arranging the first fan 3 and the second fan 4, as shown in fig. 7, during the operation process, the first fan 3 is used as an outer ring fan and mainly used for sucking air at the upper part of the air inlet of the heat exchanger, and the second fan 4 is used as an inner ring fan and mainly used for exhausting the air volume of the second fan unit 2 introduced upwards from the air inlet of the heat exchanger, so as to make up the situation that the air volume of the first fan unit 1 is increased due to the operation of the second fan unit 2, and further improve the uniformity of the flow field of the heat exchanger.
For the structure of the first fan 3, it may be: as shown in fig. 2 and 3, the first fan 3 is an axial fan, the first fan 3 includes a flow guide ring 5 and a first fan blade 6, the flow guide ring 5 is a circular hollow cylinder, the flow guide ring 5 is disposed along a vertical direction, the first fan blade 6 is fixedly connected to the outside of the flow guide ring 5, the first fan blade 6 is plural, and the plural first fan blades 6 are disposed along a circumferential direction of the flow guide ring 5 at intervals.
For the structure of the second fan 4, it may be: as shown in fig. 3, the second fan 4 is an axial fan, the second fan 4 includes a first fan unit hub 12 and a third fan blade 13, the first fan unit hub 12 is coaxial with the baffle ring 5, the third fan blade 13 is located between the first fan unit hub 12 and the baffle ring 5, the third fan blade 13 is integrally and fixedly connected to the first fan unit hub 12, the third fan blades 13 are plural, and the plural third fan blades 13 are arranged at intervals along the circumferential direction of the first fan unit hub 12.
As further shown in fig. 3, it is preferable that the connection relationship between the second fan 4 and the first fan 3 is a fixed connection, so as to achieve synchronous rotation of the second fan 4 and the first fan 3, thereby reducing the number of required driving components, reducing the cost and improving the control efficiency, specifically: one end of the third fan blade 13 is integrally and fixedly connected with the outer surface of the first fan unit hub 12, and the other end of the third fan blade 13 is integrally and fixedly connected with the inner surface of the flow guide ring 5.
For the structure of the second fan unit 2, it may be: as shown in fig. 2, the second fan unit 2 is an axial flow fan, the second fan unit 2 includes a cowling 7, second fan unit wheel hub 14 and second flabellum 8, kuppe 7 is circular cavity tube-shape, kuppe 7 sets up along vertical direction, kuppe 7 is used for concentrating the air of heat exchanger air intake lower part and leads to the inside of guide ring 5, kuppe 7 is coaxial with guide ring 5, the outside of second fan unit wheel hub 14 is located to kuppe 7 cover, second fan unit wheel hub 14 is coaxial with kuppe 7, second flabellum 8 is located between second fan unit wheel hub 14 and the kuppe 7, the one end of second flabellum 8 and the integration fixed connection of second fan unit wheel hub 14 surface, the other end of second flabellum 8 and the integration fixed connection of the internal surface of kuppe 7, second flabellum 8 is a plurality of, a plurality of second flabellum 8 set up along the circumference interval of kuppe 7.
The more intensively the air output by the second fan unit 2 flows toward the inside of the first guide ring 5, the less the load of the first fan 3 for discharging the air output by the second fan unit 2 is, and the more the first fan 3 plays a role of introducing the air introduced into the upper portion of the air inlet of the heat exchanger, and based on this, in order to ensure a better convergence of the air discharged from the nacelle 7, as shown in fig. 4 and 5, the dimension b of the nacelle 7 in the axial direction is set as1And the diameter of the hollow part of the first fan 3 is set as D2Setting the ratio of (b) to 1%1/D2) Less than or equal to 40 percent, thereby ensuring that the air guided out by the air guide sleeve 7 has better convergence, namely ensuring that the air output by the second fan unit 2 flows to the inside of the first guide ring 5 more, ensuring that the first fan 3 bears the larger action of introducing the air at the upper part of the air inlet of the heat exchanger, and further ensuring that the heat exchanger has higher flow field uniformity in the process of operating the double-stage fan system.
In order to ensure that the air inside the heat exchanger uniformly flows upwards and improve the uniformity of the flow field of the heat exchanger, as shown in fig. 4 and 5, the diameter of the second fan blade 8 is set to be D3And the outer diameter of the first fan 3 is set to D1If D is more than or equal to 30%3/D1) Less than or equal to 70 percent, thereby further ensuring the uniformity of the flow field of the heat exchanger.
In addition, in order to ensure the higher air output of the heat exchanger, as further shown in fig. 4 and 5, 35 percent (D) is set to be less than or equal to2/D1)≤75％。
As further shown in fig. 2, it is preferable that the connection relationship between the second fan unit 2 and the first fan unit 1 is a fixed connection, so as to achieve synchronous rotation between the second fan unit 2 and the first fan unit 1, thereby reducing the number of required driving elements, reducing the cost and improving the control efficiency, specifically: the double-stage fan system further comprises a supporting shaft 15, the supporting shaft 15 is arranged in the vertical direction, the first fan unit hub 12 is hollow in the vertical direction, the first fan unit hub 12 is fixedly sleeved on the outer portion of the supporting shaft 15 to achieve synchronous rotation with the supporting shaft 15, the second fan unit hub 14 is hollow in the vertical direction, and the second fan unit hub 14 is fixedly sleeved on the outer portion of the supporting shaft 15 to achieve synchronous rotation with the supporting shaft 15.
Referring to fig. 6 and 7, the present invention further relates to an outdoor unit of an air conditioner, including a dual-stage fan system, where the specific structure of the dual-stage fan system refers to the above-mentioned embodiments, and since the outdoor unit of the air conditioner employs all technical solutions of all the above-mentioned embodiments, at least all the beneficial effects brought by the technical solutions of the above-mentioned embodiments are achieved, and no further description is given here; the outdoor unit of the air conditioner further comprises a heat exchanger shell 9, a cavity is formed inside the heat exchanger shell 9, the heat exchanger shell 9 is provided with an air outlet 10 and an air inlet 11, the air outlet 10 is located at the top of the heat exchanger shell 9, the air inlet 11 is located on the side portion of the heat exchanger shell 9, the first fan unit 1 is rotatably arranged on the upper portion of the heat exchanger shell 9, the second fan unit 2 is rotatably arranged inside the cavity of the heat exchanger shell 9, the first fan unit 1 is arranged corresponding to the upper portion of the air inlet 11 to introduce air into the air outlet 10 from the upper portion of the air inlet 11, and the second fan unit 2 is arranged corresponding to the lower portion of the air inlet 11 to introduce air into the air outlet 10 from the lower portion of.
Based on the above, the air conditioner outdoor unit provided by the invention is provided with the two-stage fan system, so that the uniformity of the flow field is improved, the normal performance of the fin performance of the heat exchanger is further ensured, the upper pipeline and the lower pipeline of the heat exchanger uniformly radiate heat, and the performance of the whole air conditioner is further improved.
In order to drive the first fan unit 1 and the second fan unit 2, the following steps may be performed: as shown in fig. 6, a motor 16 is disposed inside the cavity of the heat exchanger housing 9, the motor 16 is disposed between the first fan unit 1 and the second fan unit 2, and the motor 16 has two power output ends for driving the first fan unit 1 and the second fan unit 2 to rotate respectively.
For a more clear explanation of the present invention, the following embodiment shown in fig. 1 to 3 is taken as an example to specifically explain the operation of the dual-stage fan system of the present invention:
the supporting shaft 15 is driven to rotate by the motor 16 so as to drive the first fan 3, the second fan 4 and the second fan unit 2 to synchronously rotate, then air outside the heat exchanger shell 9 is introduced into the cavity of the heat exchanger shell 9 through the air inlet 11 of the heat exchanger shell 9 and flows upwards to the air outlet 10 of the heat exchanger shell 9, and finally flows out of the heat exchanger shell 9 through the air outlet 10 of the heat exchanger shell 9;
in the above process, the second fan unit 2 introduces air from the lower part of the air inlet of the heat exchanger housing 9 into the chamber of the heat exchanger housing 9 and guides the air to the second fan 4, the second fan 4 discharges the air output by the second fan unit 2 upwards to the air outlet 10 of the heat exchanger housing 9, and the first fan 3 sucks the air at the upper part of the air inlet 11 of the heat exchanger and discharges the air upwards to the air outlet 10 of the heat exchanger housing 9.
The present invention further relates to an air conditioner including an outdoor unit of an air conditioner, the specific structure of the outdoor unit of the air conditioner refers to the above embodiments, and the air conditioner adopts all technical solutions of all the above embodiments, so that the air conditioner at least has all the beneficial effects brought by the technical solutions of the above embodiments, and details are not repeated herein.
Based on the above, the air conditioner provided by the invention has the advantages that the uniformity of the flow field of the heat exchanger is improved by arranging the air conditioner outdoor unit with the double-stage fan system, so that the normal performance of the fin performance of the heat exchanger is ensured, the upper pipeline and the lower pipeline of the heat exchanger uniformly radiate heat, and the performance of the whole air conditioner is further improved.
Claims (7)
1. A dual stage fan system for use in an air conditioner, comprising: the air conditioner comprises a first fan unit (1) and a second fan unit (2), wherein air can be introduced from the upper part of the side surface of a heat exchanger to the top of the heat exchanger, the second fan unit (2) can be introduced from the lower part of the side surface of the heat exchanger to the top of the heat exchanger, the first fan unit (1) is positioned above the second fan unit (2), and rotating shafts of the first fan unit (1) and the second fan unit (2) are coaxial and are arranged along the vertical direction;
the first fan unit (1) comprises a first fan (3) and a second fan (4), the first fan (3) is hollow, the second fan (4) is located inside the first fan (3), and the second fan (4) and the first fan (3) are coaxially arranged;
first fan (3) are including water conservancy diversion ring (5) and first flabellum (6), water conservancy diversion ring (5) set up along vertical direction, first flabellum (6) fixed connection in the outside of water conservancy diversion ring (5), first flabellum (6) are a plurality of, and are a plurality of first flabellum (6) are along the circumference interval setting of water conservancy diversion ring (5).
2. The dual stage fan system of claim 1, wherein: the second fan unit (2) comprises a flow guide cover (7) and second fan blades (8), the flow guide cover (7) is arranged along the vertical direction, the second fan blades (8) are fixedly arranged in the flow guide cover (7), the second fan blades (8) are multiple and multiple, and the second fan blades (8) are arranged along the circumferential interval of the flow guide cover (7).
3. The dual stage fan system of claim 2, wherein: the size of the air guide sleeve (7) along the axial direction is set as b1And the diameter of the hollow part of the first fan (3) is set as D2Setting the ratio of (b) to 1%1/D2）≤40%。
4. The dual stage fan system of claim 3, wherein: the second fan blade(8) Has a diameter of D3And the outer diameter of the first fan (3) is set to be D1If D is more than or equal to 30%3/D1）≤70%。
5. The dual stage fan system of claim 4, wherein: setting the ratio of (D) to (35% < or less)2/D1）≤75%。
6. An outdoor unit for an air conditioner, comprising: a dual-stage fan system comprising the dual-stage fan system of any of claims 1-5;
the outdoor unit of the air conditioner also comprises a heat exchanger shell (9), a chamber is formed inside the heat exchanger shell (9), the heat exchanger shell (9) is provided with an air outlet (10) and an air inlet (11), the air outlet (10) is positioned at the top of the heat exchanger shell (9), the air inlet (11) is positioned at the side of the heat exchanger shell (9), the first fan unit (1) and the second fan unit (2) can be rotatably arranged in the chamber of the heat exchanger shell (9), the first fan unit (1) is arranged corresponding to the upper part of the air inlet (11), to introduce air from the upper part of the air inlet (11) to the air outlet (10), the second fan unit (2) is arranged corresponding to the lower part of the air inlet (11), to introduce air from the lower portion of the air inlet (11) to the air outlet (10).
7. An air conditioner, characterized in that: comprising the outdoor unit of claim 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810609757.9A CN109028348B (en) | 2018-06-13 | 2018-06-13 | Two-stage fan system, air conditioner outdoor unit and air conditioner |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810609757.9A CN109028348B (en) | 2018-06-13 | 2018-06-13 | Two-stage fan system, air conditioner outdoor unit and air conditioner |
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| CN109028348A CN109028348A (en) | 2018-12-18 |
| CN109028348B true CN109028348B (en) | 2020-12-18 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3708842B1 (en) * | 2019-01-30 | 2021-07-28 | GD Midea Air-Conditioning Equipment Co., Ltd. | Fan and air conditioner indoor unit having same |
| WO2021057001A1 (en) * | 2019-09-27 | 2021-04-01 | 美的威灵电机技术（上海）有限公司 | Air conditioner outdoor unit and air conditioning apparatus |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002250544A (en) * | 2001-02-22 | 2002-09-06 | Toshiba Kyaria Kk | Outdoor apparatus of air conditioner |
| CN202792281U (en) * | 2012-07-30 | 2013-03-13 | 广东美的暖通设备有限公司 | Condenser and air-condition outdoor unit provided with the same |
| CN104235969A (en) * | 2014-09-14 | 2014-12-24 | 深圳市沃森空调技术有限公司 | Axial-flow fan blade of double-blade structure and air conditioner outdoor machine utilizing axial-flow fan blade |
| CN107781919A (en) * | 2017-11-10 | 2018-03-09 | 广东美的暖通设备有限公司 | The control method of air-conditioner outdoor unit, air conditioner and air conditioner |
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2018
- 2018-06-13 CN CN201810609757.9A patent/CN109028348B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002250544A (en) * | 2001-02-22 | 2002-09-06 | Toshiba Kyaria Kk | Outdoor apparatus of air conditioner |
| CN202792281U (en) * | 2012-07-30 | 2013-03-13 | 广东美的暖通设备有限公司 | Condenser and air-condition outdoor unit provided with the same |
| CN104235969A (en) * | 2014-09-14 | 2014-12-24 | 深圳市沃森空调技术有限公司 | Axial-flow fan blade of double-blade structure and air conditioner outdoor machine utilizing axial-flow fan blade |
| CN107781919A (en) * | 2017-11-10 | 2018-03-09 | 广东美的暖通设备有限公司 | The control method of air-conditioner outdoor unit, air conditioner and air conditioner |
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