CN109000350B - Air duct assembly and air conditioner - Google Patents
Air duct assembly and air conditioner Download PDFInfo
- Publication number
- CN109000350B CN109000350B CN201811027620.9A CN201811027620A CN109000350B CN 109000350 B CN109000350 B CN 109000350B CN 201811027620 A CN201811027620 A CN 201811027620A CN 109000350 B CN109000350 B CN 109000350B
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- Prior art keywords
- air outlet
- air
- side wall
- wind wheel
- gap
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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
- 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
- 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
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Air-Conditioning For Vehicles (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention provides an air duct assembly and an air conditioner, and relates to the technical field of air conditioners. The air duct assembly includes a volute and a wind wheel. The wind wheel is installed in the spiral case, and can rotate for the spiral case, and the spiral case includes first lateral wall and the second lateral wall of relative setting, and first lateral wall and second lateral wall combination form the air outlet, and distance between first lateral wall and the second lateral wall is the length of air outlet, and the wind wheel stretches into in the air outlet through first lateral wall, and forms first clearance between and the second lateral wall, and the length of air outlet is in the scope of 1.5 times first clearance to 2 times first clearance. Compared with the prior art, the air duct component adopts the length of the air outlet ranging from 1.5 times of the first gap to 2 times of the first gap, so that the gap between the wind wheel and the volute is reasonably distributed, the generated noise can be effectively reduced on the premise of not influencing the air output, the noise pollution is avoided, and the air duct component is high in practicability.
Description
Technical Field
The invention relates to the technical field of air conditioners, in particular to an air duct assembly and an air conditioner.
Background
The mobile air conditioner is convenient to install and use, is popular in European and American markets, but as a member of the integral air conditioner, the same noise problem always seriously affects the comfort of the mobile air conditioner, and only the lower noise mobile air conditioner is developed to improve the product competitiveness. The air outlet structure of the fan is an important component of the mobile air conditioner, and has important influence on the circulating air volume and noise of the air conditioner. The current air outlet structure is at the in-process of air-out, and the noise that produces is high, influences user experience.
Disclosure of Invention
In view of the above, the invention aims to provide an air duct assembly which has a simple structure, reasonable gap distribution among parts, can effectively reduce the generated noise on the premise of not influencing the air output, avoids noise pollution and has strong practicability.
In order to achieve the above purpose, the technical scheme of the invention is realized as follows:
the utility model provides an air duct assembly, includes spiral case and wind wheel, and the wind wheel is installed in the spiral case, and can rotate for the spiral case, and the spiral case includes relative first lateral wall and the second lateral wall that sets up, and first lateral wall and second lateral wall combination form the air outlet, and distance between first lateral wall and the second lateral wall is the length of air outlet, and the wind wheel stretches into in the air outlet through first lateral wall, and forms first clearance between with the second lateral wall, and the length of air outlet is in the scope of 1.5 times first clearance to 2 times first clearance.
Further, the volute also comprises a third side wall, the first side wall is connected with the second side wall through the third side wall, and a second gap is formed between the wind wheel and one end, close to the first side wall, of the third side wall.
Further, the first gap is in a range of 5 times the second gap to 10 times the second gap.
Further, the second gap is in the range of 8 mm to 12 mm.
Further, the third side wall is arc-shaped, an included angle is formed between the first side wall and the plane where the air outlet is located, and the second side wall is perpendicular to the plane where the air outlet is located.
Further, the volute also comprises a first connecting wall and a second connecting wall, the first side wall, the first connecting wall, the second side wall and the second connecting wall are connected end to end and combined to form an air outlet, and the first connecting wall and the second connecting wall are oppositely arranged on two sides of the third side wall.
Further, the first connecting wall is provided with a first opening, the second connecting wall is provided with a second opening, the position of the first opening corresponds to that of the second opening, and the wind wheel is arranged between the first opening and the second opening.
Further, the air duct assembly further comprises a motor, wherein the motor is fixedly arranged on the first connecting wall, penetrates through the first opening and is connected with the wind wheel.
Further, the air duct assembly further comprises an air outlet cover, the bottom of the air outlet cover is connected with the volute, the air outlet cover is provided with a through hole, and the position of the through hole corresponds to that of the air outlet.
Compared with the prior art, the air duct assembly has the following advantages:
the wind wheel is arranged in the volute and can rotate relative to the volute, the volute comprises a first side wall and a second side wall which are oppositely arranged, the first side wall and the second side wall are combined to form an air outlet, the distance between the first side wall and the second side wall is the length of the air outlet, the wind wheel extends into the air outlet through the first side wall, a first gap is formed between the wind wheel and the second side wall, and the length of the air outlet is in the range from 1.5 times of the first gap to 2 times of the first gap. Compared with the prior art, the air duct component adopts the length of the air outlet ranging from 1.5 times of the first gap to 2 times of the first gap, so that the gap between the wind wheel and the volute is reasonably distributed, the generated noise can be effectively reduced on the premise of not influencing the air output, the noise pollution is avoided, and the air duct component is high in practicability.
The invention further aims to provide an air conditioner, wherein the air duct assembly is simple in structure, gaps among parts are distributed reasonably, generated noise can be reduced effectively on the premise that the air output is not influenced, noise pollution is avoided, practicability is high, and user experience is good.
In order to achieve the above purpose, the technical scheme of the invention is realized as follows:
the utility model provides an air conditioner, including foretell wind channel subassembly, this wind channel subassembly includes spiral case and wind wheel, the wind wheel is installed in the spiral case, and can rotate for the spiral case, the spiral case includes relative first lateral wall and the second lateral wall that sets up, first lateral wall and second lateral wall combination form the air outlet, distance between first lateral wall and the second lateral wall is the length of air outlet, the wind wheel stretches into in the air outlet through first lateral wall, and form first clearance between with the second lateral wall, the length of air outlet is in the scope of 1.5 times first clearance to 2 times first clearance.
Compared with the prior art, the air conditioner has the following advantages:
the air conditioner has the advantages that the air duct component in the air conditioner is simple in structure, the gaps between the wind wheel and the spiral case are reasonably distributed, the generated noise can be effectively reduced on the premise that the air output is not influenced, the noise pollution is avoided, the practicability is high, and the user experience is good.
The air conditioner has the same advantages as the air duct assembly in the prior art, and the description thereof is omitted.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention. In the drawings:
FIG. 1 is a schematic view of a first embodiment of an air duct assembly according to the present invention;
FIG. 2 is a schematic view of an air duct assembly according to another embodiment of the present invention;
fig. 3 is a schematic structural view of a wind wheel and a volute connected in the wind channel assembly according to the first embodiment of the present invention;
fig. 4 is a schematic structural view of an air duct assembly according to a first embodiment of the present invention from another perspective, in which a wind wheel is connected to a volute;
FIG. 5 is a schematic view of a volute in an air duct assembly according to a first embodiment of the invention;
fig. 6 is a schematic structural view of an air conditioner according to a second embodiment of the present invention.
Reference numerals illustrate:
1-an air duct assembly; 2-a volute; 3-wind wheel; 4-an air outlet cover; 5-an air-out protective net; 6-a motor; 7-an air outlet; 9-a first sidewall; 10-a second sidewall; 11-a third sidewall; 12-a first connecting wall; 13-a second connecting wall; 14-a first opening; 15-a second opening; 16-an air conditioner; 17-a housing.
Detailed Description
It should be noted that, without conflict, the embodiments of the present invention and features of the embodiments may be combined with each other.
The invention will be described in detail below with reference to the drawings in connection with embodiments.
First embodiment
Referring to fig. 1 and 2 in combination, an air duct assembly 1 for blowing air flow to the outside is provided in an embodiment of the present invention. The novel air conditioner has the advantages of simple structure, reasonable gap distribution among parts, capability of effectively reducing generated noise on the premise of not influencing the air output, noise pollution avoidance and strong practicability. In this embodiment, the air duct assembly 1 is applied to an air conditioner, and when the air conditioner is started, the air duct assembly 1 works to blow hot air or cold air generated by heat exchange in the air conditioner into a room so as to regulate and control the indoor temperature.
The air duct assembly 1 comprises a volute 2, a wind wheel 3, an air outlet cover 4, an air outlet protective net 5 and a motor 6. The wind wheel 3 is installed in the spiral case 2 and can rotate relative to the spiral case 2, the spiral case 2 is provided with an air outlet 7, and the wind wheel 3 can suck outside air into the spiral case 2 and blow out to the outside through the air outlet 7 so as to realize an air outlet function. The bottom of the air outlet cover 4 is connected with the spiral case 2, the air outlet cover 4 is provided with a through hole (not shown), the position of the through hole corresponds to the position of the air outlet 7, the air flow output from the air outlet 7 is output to the outside through the air outlet cover 4, the air outlet cover 4 can guide the output air flow, and in the embodiment, the air outlet cover 4 and the spiral case 2 are integrally formed to improve the connection strength. The air-out protection network 5 is installed in the air-out cover 4, and the position of the air-out protection network 5 corresponds to the position of the through hole to prevent external debris from entering the air outlet 7 through the through hole, avoid producing the potential safety hazard. The motor 6 is fixedly arranged on the volute 2 and is connected with the wind wheel 3 to drive the wind wheel 3 to rotate, so that air flow is generated.
Referring to fig. 3 and fig. 4 in combination (a is the length of the air outlet 7, B is the second gap, C is the angle between the first sidewall 9 and the plane of the air outlet 7, D is the first gap, E is the width of the air outlet 7, F is the third gap, G is the fourth gap, H is the width of the wind wheel), the volute 2 includes a first sidewall 9, a second sidewall 10, a third sidewall 11, a first connecting wall 12, and a second connecting wall 13. The first side wall 9, the first connecting wall 12, the second side wall 10 and the second connecting wall 13 are connected end to end and are combined to form the air outlet 7, in this embodiment, the air outlet 7 is rectangular, the first side wall 9 and the second side wall 10 are arranged in parallel, the first connecting wall 12 and the second connecting wall 13 are arranged in parallel, and the first side wall 9 and the first connecting wall 12 are arranged vertically. The first side wall 9 is connected to the second side wall 10 through the third side wall 11, and the first connecting wall 12 and the second connecting wall 13 are disposed at opposite ends of the third side wall 11.
It is noted that the wind wheel 3 extends into the air outlet 7 through the first side wall 9, and forms a first gap with the second side wall 10, the center of the wind wheel 3 is located at one side of the first side wall 9 away from the second side wall 10, and part of the wind wheel 3 extends into the air outlet 7. Specifically, since the air outlet 7 is rectangular, the distance between the first side wall 9 and the second side wall 10 is the length of the air outlet 7, and the length of the air outlet 7 is in the range of 1.5 times to 2 times of the first gap, so as to reduce the air outlet noise. In the present embodiment, the length of the air outlet 7 is equal to 1.8 times of the first gap, but the present invention is not limited thereto, and the length of the air outlet 7 may be equal to 1.5 times of the first gap, or may be equal to 2 times of the first gap.
The wind wheel 3 is arranged between the first connecting wall 12 and the second connecting wall 13, a third gap is formed between the wind wheel 3 and the first connecting wall 12, and a fourth gap is formed between the wind wheel 3 and the second connecting wall 13. The third clearance is equal to the fourth clearance and is in the range of 6 mm to 8 mm so as to reduce the noise of air outlet. In the present embodiment, the third gap and the fourth gap are each 7 mm, but not limited thereto, and the third gap and the fourth gap may each be 6 mm or 8 mm.
A second gap is formed between the wind wheel 3 and one end of the third side wall 11, which is close to the first side wall 9, and the second gap is also the minimum gap between the wind wheel 3 and the third side wall 11, and the second gap is in the range of 8 mm to 12 mm so as to reduce the noise of the wind outlet. In the present embodiment, the second gap is 10 mm, but not limited thereto, and the second gap may be 8 mm or 12 mm.
The first side wall 9 is outwards inclined in a flaring shape, an included angle is formed between the first side wall 9 and the plane where the air outlet 7 is located, the included angle is in the range of 84 degrees to 87 degrees, and the second side wall 10 and the plane where the air outlet 7 is located are mutually perpendicular, so that the air output is improved, the wind resistance is reduced, and the noise is reduced. In this embodiment, the included angle is 85.5 degrees, but not limited thereto, and the included angle may be 84 degrees or 87 degrees.
In the present embodiment, the first gap is in the range of 5 times to 10 times the second gap, i.e. the range of the first gap is 40 to 120 mm, and the length of the air outlet 7 can be calculated to be 60 to 240 mm.
It is noted that the third side wall 11 is arc-shaped, one end of the third side wall 11 is connected with the first side wall 9, the other end is connected with the second side wall 10, and the arc transition is performed at the connection part of the first side wall 9 and the third side wall 11, so that the air outlet is smooth, the wind resistance is reduced, the air outlet quantity is improved, and the air outlet noise is reduced.
The distance between the first connecting wall 12 and the second connecting wall 13 is the width of the air outlet 7, the width of the air outlet 7 is equal to the sum of the width of the wind wheel 3, the third gap and the fourth gap, the wind wheel 3 is arranged in the middle of the first connecting wall 12 and the second connecting wall 13, and the width range of the air outlet 7 can be calculated according to the width of the wind wheel 3 and the ranges of the third gap and the fourth gap.
Referring to fig. 5, in the present embodiment, a first opening 14 is formed in the first connecting wall 12, a second opening 15 is formed in the second connecting wall 13, the position of the first opening 14 corresponds to the position of the second opening 15, and the wind wheel 3 is installed between the first opening 14 and the second opening 15. The motor 6 is fixedly installed on the first connecting wall 12, passes through the first opening 14 and is connected with the wind wheel 3 to drive the wind wheel 3 to rotate. In the working process of the air duct assembly 1, the motor 6 drives the wind wheel 3 to rotate, and air is sucked into the volute 2 from the second opening 15 under the action of the wind wheel 3 and then is output to the outside through the air outlet 7.
According to the air duct assembly 1 disclosed by the embodiment of the invention, the wind wheel 3 is arranged in the volute 2 and can rotate relative to the volute 2, the volute 2 comprises the first side wall 9 and the second side wall 10 which are oppositely arranged, the first side wall 9 and the second side wall 10 are combined to form the air outlet 7, the distance between the first side wall 9 and the second side wall 10 is the length of the air outlet 7, the wind wheel 3 extends into the air outlet 7 through the first side wall 9 and forms a first gap with the second side wall 10, and the length of the air outlet 7 is in the range from 1.5 times of the first gap to 2 times of the first gap. Compared with the prior art, the air duct assembly 1 disclosed by the invention has the advantages that the length of the air outlet 7 ranging from 1.5 times of the first gap to 2 times of the first gap is adopted, so that the gap between the wind wheel 3 and the volute 2 is reasonably distributed, the generated noise can be effectively reduced on the premise of not influencing the air output, the noise pollution is avoided, and the practicability is strong.
Second embodiment
Referring to fig. 6, an embodiment of the present invention provides an air conditioner 16 for controlling indoor air temperature. The air conditioner 16 includes a housing 17 and a duct assembly 1. The basic structure and principle of the air duct assembly 1 and the technical effects thereof are the same as those of the first embodiment, and for brevity, reference is made to the corresponding contents of the first embodiment where the description of the embodiment is not mentioned.
In this embodiment, the air duct assembly 1 is installed in the housing 17, the housing 17 can protect the air duct assembly 1, and the air duct assembly 1 is used for outputting air flow to blow hot air or cold air generated by heat exchange into a room.
The beneficial effects of the air conditioner 16 according to the embodiment of the present invention are the same as those of the first embodiment, and will not be described here again.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the invention.
Claims (5)
1. The utility model provides an air duct assembly, its characterized in that includes spiral case (2) and wind wheel (3), wind wheel (3) install in spiral case (2) just can rotate for spiral case (2), spiral case (2) include relative first lateral wall (9) and second lateral wall (10) that set up, first lateral wall (9) with second lateral wall (10) combination forms air outlet (7), the distance between first lateral wall (9) and second lateral wall (10) is the length of air outlet (7), wind wheel (3) pass through first lateral wall (9) stretch into in air outlet (7), and with form first clearance between second lateral wall (10), the length of air outlet (7) is in 1.5 times first clearance to 2 times first clearance's within range.
The volute (2) further comprises a third side wall (11), the first side wall (9) is connected with the second side wall (10) through the third side wall (11), a second gap is formed between the wind wheel (3) and one end, close to the first side wall (9), of the third side wall (11), and the first gap is in the range of 5 times to 10 times of the second gap;
an included angle is formed between the first side wall (9) and a plane where the air outlet (7) is located, and the included angle is in the range of 84-87 degrees;
the third side wall (11) is arc-shaped, an included angle is formed between the first side wall (9) and the plane where the air outlet (7) is located, and the second side wall (10) and the plane where the air outlet (7) is located are mutually perpendicular;
the volute (2) further comprises a first connecting wall (12) and a second connecting wall (13), the first side wall (9), the first connecting wall (12), the second side wall (10) and the second connecting wall (13) are connected end to end and combined to form the air outlet (7), and the first connecting wall (12) and the second connecting wall (13) are oppositely arranged on two sides of the third side wall (11);
the first connecting wall (12) is provided with a first opening (14), the second connecting wall (13) is provided with a second opening (15), the position of the first opening (14) corresponds to the position of the second opening (15), and the wind wheel (3) is arranged between the first opening (14) and the second opening (15).
2. The air duct assembly of claim 1, wherein the second gap is in the range of 8 millimeters to 12 millimeters.
3. A wind tunnel assembly according to claim 1, further comprising a motor (6), said motor (6) being fixedly mounted on said first connecting wall (12) and passing through said first opening (14) and being connected to said wind wheel (3).
4. The air duct assembly according to claim 1, further comprising an air outlet cover (4), wherein the bottom of the air outlet cover (4) is connected with the volute (2), the air outlet cover (4) is provided with a through hole, and the position of the through hole corresponds to the position of the air outlet (7).
5. An air conditioner comprising the duct assembly of any one of claims 1 to 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811027620.9A CN109000350B (en) | 2018-09-04 | 2018-09-04 | Air duct assembly and air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811027620.9A CN109000350B (en) | 2018-09-04 | 2018-09-04 | Air duct assembly and air conditioner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109000350A CN109000350A (en) | 2018-12-14 |
| CN109000350B true CN109000350B (en) | 2023-08-15 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811027620.9A Active CN109000350B (en) | 2018-09-04 | 2018-09-04 | Air duct assembly and air conditioner |
Country Status (1)
| Country | Link |
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| CN (1) | CN109000350B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109282466B (en) * | 2018-09-04 | 2024-04-16 | 奥克斯空调股份有限公司 | Air duct assembly and air conditioner |
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| DE10350193A1 (en) * | 2002-10-30 | 2004-05-13 | Denso Corp., Kariya | Vehicle climate control system, has foot room channel with wall separated from outside of spiral casing by insulation space |
| CN203964281U (en) * | 2014-05-28 | 2014-11-26 | 广东顺威精密塑料股份有限公司 | The centrifugal air duct that a kind of indoor air conditioner cabinet is used |
| CN204438446U (en) * | 2014-12-25 | 2015-07-01 | 上海新祁环境科技有限公司 | Double suction air-duct apparatus and air-conditioner |
| CN204535010U (en) * | 2014-12-24 | 2015-08-05 | 珠海格力电器股份有限公司 | A kind of air-supply arrangement and air-conditioning |
| CN105370624A (en) * | 2015-11-30 | 2016-03-02 | 广东美的制冷设备有限公司 | Centrifugal fan and movable air conditioner |
| CN107166496A (en) * | 2017-06-30 | 2017-09-15 | 广东美的环境电器制造有限公司 | Ducting assembly and warm-air drier |
| CN206919121U (en) * | 2017-06-30 | 2018-01-23 | 广东美的环境电器制造有限公司 | Ducting assembly and warm-air drier |
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2018
- 2018-09-04 CN CN201811027620.9A patent/CN109000350B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10350193A1 (en) * | 2002-10-30 | 2004-05-13 | Denso Corp., Kariya | Vehicle climate control system, has foot room channel with wall separated from outside of spiral casing by insulation space |
| CN203964281U (en) * | 2014-05-28 | 2014-11-26 | 广东顺威精密塑料股份有限公司 | The centrifugal air duct that a kind of indoor air conditioner cabinet is used |
| CN204535010U (en) * | 2014-12-24 | 2015-08-05 | 珠海格力电器股份有限公司 | A kind of air-supply arrangement and air-conditioning |
| CN204438446U (en) * | 2014-12-25 | 2015-07-01 | 上海新祁环境科技有限公司 | Double suction air-duct apparatus and air-conditioner |
| CN105370624A (en) * | 2015-11-30 | 2016-03-02 | 广东美的制冷设备有限公司 | Centrifugal fan and movable air conditioner |
| CN107166496A (en) * | 2017-06-30 | 2017-09-15 | 广东美的环境电器制造有限公司 | Ducting assembly and warm-air drier |
| CN206919121U (en) * | 2017-06-30 | 2018-01-23 | 广东美的环境电器制造有限公司 | Ducting assembly and warm-air drier |
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|---|---|
| CN109000350A (en) | 2018-12-14 |
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