CN111425942B - Air conditioning unit - Google Patents
Air conditioning unit Download PDFInfo
- Publication number
- CN111425942B CN111425942B CN202010351082.XA CN202010351082A CN111425942B CN 111425942 B CN111425942 B CN 111425942B CN 202010351082 A CN202010351082 A CN 202010351082A CN 111425942 B CN111425942 B CN 111425942B
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- China
- Prior art keywords
- heat exchange
- fan
- air
- conditioning unit
- air conditioning
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- 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.)
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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
- F24F1/0007—Indoor units, e.g. fan coil units
- F24F1/0059—Indoor units, e.g. fan coil units characterised by heat exchangers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/0007—Indoor units, e.g. fan coil units
- F24F1/0018—Indoor units, e.g. fan coil units characterised by fans
- F24F1/0022—Centrifugal or radial fans
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/0007—Indoor units, e.g. fan coil units
- F24F1/0018—Indoor units, e.g. fan coil units characterised by fans
- F24F1/0029—Axial fans
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/0007—Indoor units, e.g. fan coil units
- F24F1/0018—Indoor units, e.g. fan coil units characterised by fans
- F24F1/0033—Indoor units, e.g. fan coil units characterised by fans having two or more fans
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/20—Casings or covers
-
- 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
- F24F13/22—Means for preventing condensation or evacuating condensate
- F24F13/222—Means for preventing condensation or evacuating condensate for evacuating condensate
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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
- F24F13/30—Arrangement or mounting of heat-exchangers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/20—Casings or covers
- F24F2013/205—Mounting a ventilator fan therein
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
本发明提供了一种空调机组，空调机组包括换热模块，换热模块包括表冷器和第一风机，表冷器围绕形成的区域为风道，第一风机位于风道内；换热模块为多个，多个换热模块排列设置，相邻两个换热模块的风道相互连通，多个换热模块内的多个第一风机均沿同一方向送风。采用该空调机组，在送风方向上的不同位置可通过多个风机送风，表冷器的不同位置与风机的距离差异比较小，因此空调机组内不同的表冷器的不同位置风速差异小，提高了空调机组内气流的均匀性。本方案与空调机组中只在某一位置设置风机相比，不会出现表冷器的不同位置与风机的距离差异很大而造成风速差异很大的情况，有利于发挥出整机的最优换热性能，提高能效。
The present invention provides an air conditioning unit, the air conditioning unit includes a heat exchange module, the heat exchange module includes a surface cooler and a first fan, the area formed around the surface cooler is an air duct, and the first fan is located in the air duct; there are multiple heat exchange modules, the multiple heat exchange modules are arranged in an array, the air ducts of two adjacent heat exchange modules are interconnected, and the multiple first fans in the multiple heat exchange modules all supply air in the same direction. With this air conditioning unit, air can be supplied by multiple fans at different positions in the air supply direction, and the distance difference between the different positions of the surface cooler and the fan is relatively small. Therefore, the wind speed difference at different positions of different surface coolers in the air conditioning unit is small, which improves the uniformity of the airflow in the air conditioning unit. Compared with only setting the fan at a certain position in the air conditioning unit, this solution will not cause a situation where the distance between the different positions of the surface cooler and the fan is very different, which is conducive to exerting the optimal heat exchange performance of the whole machine and improving energy efficiency.
Description
Technical Field
The invention relates to the technical field of air conditioning units, in particular to an air conditioning unit.
Background
The design of the air flow organization in the air conditioning unit directly influences the resistance of the whole machine, so that the capacity and the energy consumption of the whole machine are determined. Through air flow organization optimization, a proper air duct system is designed, the internal resistance of a unit is reduced, the air quantity is improved, and the capacity and the structural compactness of the whole unit are greatly improved.
In order to improve the heat exchange capacity of an air conditioning unit, a surface cooler with a large heat exchange area is generally designed, and air flow is driven by a fan to exchange heat with the surface cooler. The energy efficiency of the surface air cooler can be better exerted under the condition that the wind speeds of different positions of the surface air cooler are uniform, but in practical application, the difference of the return air speeds of different positions of the surface air cooler is larger. Specifically, the air speed of the position, close to the fan, in the air conditioning unit is high, the air speed of the position, far from the fan, is low, and the optimal heat exchange performance is difficult to develop. Therefore, the problem of how to ensure the uniformity of the air flow is faced in the practical use of the air conditioning unit.
Disclosure of Invention
The invention provides an air conditioning unit, which is used for improving the uniformity of air flow in the air conditioning unit.
In order to achieve the purpose, the invention provides an air conditioning unit which comprises a plurality of heat exchange modules, wherein the plurality of heat exchange modules are arranged in a row, the air channels of two adjacent heat exchange modules are communicated with each other, and the plurality of first fans in the plurality of heat exchange modules supply air along the same direction.
Further, in the plurality of heat exchange modules, two adjacent surface coolers are abutted against each other.
Further, the air conditioning unit further comprises a second fan, the second fan is located at one side of the output wind of the heat exchange modules, and the air supply direction of the second fan is the same as that of the first fan.
Further, the air conditioning unit further comprises a frame structure, the circumference of the frame structure is an air inlet side, the plurality of heat exchange modules are arranged in the frame structure in an arrayed mode, the air duct is arranged along the length direction of the frame structure, and the second fan is arranged at one end of the frame structure.
Further, the air conditioning unit further comprises a top cover, wherein the top cover is connected with the frame structure so as to seal one end, away from the second fan, of the frame structure.
Further, the second fan is located outside the frame structure, a preset cavity is formed between the second fan and the heat exchange modules, and the air conditioning unit further comprises a plurality of side plates, the side plates are arranged on the frame structure in a surrounding mode, and the side plates block the circumference of the preset cavity.
Further, the plurality of heat exchange modules are arranged in the vertical direction, the air conditioning unit further comprises a water receiving disc, the water receiving disc is located below the plurality of heat exchange modules to receive condensed water dropped from the surface air cooler, the water receiving disc is provided with an avoidance port, the avoidance port is arranged opposite to the air duct, and the second fan is located below the water receiving disc.
Further, the first fan is an axial flow fan, and the second fan is a centrifugal fan.
Further, the surface cooler is of an annular structure with an opening in the circumferential direction, and the heat exchange module further comprises a baffle plate, wherein the baffle plate seals the opening of the surface cooler in the circumferential direction.
Further, the heat exchange module further comprises a fixing frame, and the surface cooler and the first fan are arranged on the fixing frame.
By applying the technical scheme, the invention provides an air conditioning unit which comprises a plurality of heat exchange modules, wherein the heat exchange modules comprise surface coolers and first fans, the area formed by surrounding the surface coolers is an air channel, the first fans are positioned in the air channel, the plurality of heat exchange modules are arranged, the air channels of two adjacent heat exchange modules are communicated with each other, and the plurality of first fans in the plurality of heat exchange modules supply air in the same direction. By adopting the air conditioning unit, as the heat exchange modules are arranged, and the surface coolers in each heat exchange module are internally provided with the first fans, different positions of the surface coolers can supply air through the fans in the air supply direction, and the difference between the distances between the different positions of the surface coolers and the fans is smaller, so that the difference between the wind speeds of the different positions of the surface coolers in the air conditioning unit is smaller, and the uniformity of the air flow in the air conditioning unit is improved. Compared with the air conditioner set with the fan arranged at a certain position, the air conditioner set with the fan arranged at the certain position has the advantages that the situation that the air speed is greatly different due to the fact that the distance between different positions of the surface air cooler and the fan is greatly different is avoided, the optimal heat exchange performance of the whole air conditioner set is brought into play, and the energy efficiency is improved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the application. In the drawings:
fig. 1 shows a schematic structural diagram of an air conditioning unit according to an embodiment of the present invention;
FIG. 2 shows an exploded view of the air conditioning assembly of FIG. 1;
FIG. 3 shows a schematic view of the heat exchange module of FIG. 1;
fig. 4 shows an exploded view of the heat exchange module of fig. 3.
Wherein the above figures include the following reference numerals:
10. The heat exchange device comprises a heat exchange module, a surface cooler, 12, a first fan, 13, a baffle, 14, a fixing frame, 15, a side plate, 20, a second fan, 30, a frame structure, 41, a top cover, 42, side plates, 50, a water receiving disc, 60 and an electric control box.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It will be apparent that the described embodiments are only some, but not all, embodiments of the invention. The following description of at least one exemplary embodiment is merely exemplary in nature and is in no way intended to limit the invention, its application, or uses. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
As shown in the drawings, the embodiment of the invention provides an air conditioning unit, which comprises a plurality of heat exchange modules 10, wherein the heat exchange modules 10 comprise surface coolers 11 and first fans 12, the area formed by surrounding the surface coolers 11 is an air duct, the first fans 12 are positioned in the air duct, the plurality of heat exchange modules 10 are arranged, the air ducts of two adjacent heat exchange modules 10 are communicated with each other, and the plurality of first fans 12 in the plurality of heat exchange modules 10 supply air in the same direction.
By applying the technical scheme of the invention, the air conditioning unit comprises a plurality of heat exchange modules 10, wherein the heat exchange modules 10 comprise surface coolers 11 and first fans 12, the area formed by surrounding the surface coolers 11 is an air duct, the first fans 12 are positioned in the air duct, the plurality of heat exchange modules 10 are arranged, the air ducts of two adjacent heat exchange modules 10 are communicated with each other, and the plurality of first fans 12 in the plurality of heat exchange modules 10 supply air in the same direction. By adopting the air conditioning unit, as the plurality of heat exchange modules 10 are arranged, and the surface coolers 11 in each heat exchange module 10 are internally provided with the first fans 12, different positions of the surface coolers 11 can be supplied with air through the plurality of fans in the air supply direction, and the difference between the distances between the different positions of the surface coolers 11 and the fans is smaller, so that the difference between the wind speeds of the different positions of the surface coolers 11 in the air conditioning unit is smaller, and the uniformity of the air flow in the air conditioning unit is improved. Compared with the air conditioner set with the fan arranged at a certain position, the air conditioner set with the fan arranged at the certain position has the advantages that the situation that the air speed is greatly different due to the fact that the distance between different positions of the surface air cooler 11 and the fan is greatly different is avoided, the optimal heat exchange performance of the whole air conditioner set is conveniently exerted, and the energy efficiency is improved. Moreover, by adopting a modularized structure, a proper number of heat exchange modules 10 can be selected for assembly according to power and heat exchange requirements, and the assembly is flexible and convenient.
In the present embodiment, in the plurality of heat exchange modules 10, two adjacent surface coolers 11 are in contact with each other. This avoids having a gap between adjacent surface coolers 11 to avoid air entering the tunnel from the gap without exchanging heat through the surface coolers 11.
Optionally, the lower part of the air duct is provided with an air outlet, and the first fan 12 is positioned in the lower region of the air duct, so that the air return effect can be improved. Through the operation of the first fan 12, the air outside the heat exchange module 10 passes through the periphery of the surface air cooler 11, exchanges heat with the surface air cooler 11, enters the air duct, and is blown out from the air outlet.
In another embodiment, not shown, the surface coolers 11 in the heat exchange modules 10 are in an integrated structure, that is, the air conditioning unit comprises an integrated total surface cooler, and the total surface cooler is divided into multiple sections along the length direction of the total surface cooler, and each section forms the surface cooler 11 in one heat exchange module 10. This may facilitate the manufacture of the surface cooler 11.
In this embodiment, the air conditioning unit further includes a second fan 20, where the second fan 20 is located on one side of the output wind of the plurality of heat exchange modules 10, and the air supply direction of the second fan 20 is the same as that of the first fan 12. The second fan 20 can further provide power for air flow, so that sufficient wind speed and wind quantity are ensured, and the heat exchange effect is improved.
Optionally, the rotational speeds of the plurality of first fans 12 may be independently adjusted to adjust rotational speeds at different positions, so as to achieve uniform wind speeds at different positions as much as possible. The rotational speed of the second fan 20 is adjustably set.
In the present embodiment, the first fan 12 is an axial flow fan, and the second fan 20 is a centrifugal fan. Thus, the ventilation effect is good and the structure is compact. Of course, other types of fans may be provided as desired.
In this embodiment, the air conditioning unit further includes a frame structure 30, wherein the circumferential direction of the frame structure 30 is an air inlet side, the plurality of heat exchange modules 10 are arranged in the frame structure 30, the air duct is arranged along the length direction of the frame structure 30, and the second fan 20 is arranged at one end of the frame structure 30. The arrangement and installation of the components of the plurality of heat exchange modules 10 and the like is facilitated by the frame structure 30. The adoption of the frame structure 30 can reduce wind resistance, and has light weight and high strength.
In this embodiment, the air conditioning unit further includes a top cover 41, where the top cover 41 is connected to the frame structure 30 to block an end of the frame structure 30 facing away from the second fan 20. By the arrangement, wind can be prevented from entering the air duct from the end part of the frame structure 30, and the heat exchange effect can not be achieved.
In this embodiment, the second fan 20 is located outside the frame structure 30, and a preset cavity is formed between the second fan 20 and the plurality of heat exchange modules 10, and the air conditioning unit further includes a plurality of side plates 42, where the plurality of side plates 42 are disposed on the frame structure 30 in a surrounding manner, and the plurality of side plates 42 block the circumference of the preset cavity. The plurality of side plates 42 can prevent wind from entering the preset cavity from the circumference of the preset cavity, but only from the air channel of the heat exchange module 10.
In the embodiment, the plurality of heat exchange modules 10 are arranged in the vertical direction, the air conditioning unit further comprises a water receiving disc 50, the water receiving disc 50 is located below the plurality of heat exchange modules 10 to receive condensed water dropped from the surface cooler 11, the water receiving disc 50 is provided with an avoidance port, the avoidance port is arranged opposite to the air duct, and the second fan 20 is located below the water receiving disc 50. By the water pan 50, condensed water that drips from the surface cooler 11 can be collected intensively. Moreover, by providing the avoiding opening, the water pan 50 can be prevented from obstructing the flow of the gas.
In this embodiment, the air conditioning unit further includes an electric control box 60, and the electric control box 60 is disposed on the frame structure 30. This facilitates the wiring and control of the air conditioning unit.
In the embodiment, the surface cooler 11 is of an annular structure with an opening in the circumferential direction, and the heat exchange module 10 further comprises a baffle 13, wherein the baffle 13 seals the opening of the surface cooler 11 in the circumferential direction. The surface air cooler 11 is arranged in an annular structure, so that the contact area with air can be increased, the heat exchange effect can be improved, and the compactness of the air conditioning unit can be improved. In processing the surface cooler 11, it is difficult to form a closed structure in the circumferential direction for process reasons, and processing is facilitated by providing an opening. Meanwhile, in order to prevent wind from entering from the opening and not to exert a heat exchange effect, a baffle 13 is provided to block the opening. Of course, if the process is feasible, the surface cooler 11 may be provided in an annular structure without openings in the circumferential direction, so as to further increase the heat exchange area. The above-described surface cooler is similar to a G-type structure. The surface air cooler can also be arranged into other structures according to the requirement, such as U-shaped structures, V-shaped structures and the like.
In this embodiment, the heat exchange module 10 further includes a fixing frame 14, and the surface cooler 11 and the first fan 12 are both disposed on the fixing frame 14. The components such as the surface cooler 11, the first fan 12 and the like are convenient to assemble through the fixing frame 14.
Alternatively, the fixing frame 14 includes a bottom plate and a vertical plate provided on the bottom plate, the vertical plate is connected with the surface cooler 11, the bottom plate has an opening, and the first fan 12 is provided on the bottom plate. Further, the standing plate has a flange, and the flange of the standing plate is fitted with the end face of the surface cooler 11 to improve connection reliability.
Specifically, the surface cooler 11 includes a plurality of fins arranged in an annular array and a plurality of annular heat exchange tubes each passing through the plurality of fins. The surface cooler 11 further includes a side plate 15, and the side plate 15 is located at the end portions of the plurality of heat exchange tubes to fix the heat exchange tubes.
Specifically, the air conditioning unit is a machine room air conditioning unit, and the air conditioning unit can be understood as an air conditioner. By adopting the air conditioning unit, as the plurality of heat exchange modules 10 are arranged, and the surface coolers 11 in each heat exchange module 10 are internally provided with the first fans 12, different positions of the surface coolers 11 can be supplied with air through the plurality of fans in the air supply direction, and the difference between the distances between the different positions of the surface coolers 11 and the fans is smaller, so that the difference between the wind speeds of the different positions of the surface coolers 11 in the air conditioning unit is smaller, and the uniformity of the air flow in the air conditioning unit is improved. Compared with the air conditioner set with the fan arranged at a certain position, the air conditioner set with the fan arranged at the certain position has the advantages that the situation that the air speed is greatly different due to the fact that the distance between different positions of the surface air cooler 11 and the fan is greatly different is avoided, the optimal heat exchange performance of the whole air conditioner set is conveniently exerted, and the energy efficiency is improved. Moreover, by adopting a modularized structure, a proper number of heat exchange modules 10 can be selected for assembly according to power and heat exchange requirements, and the assembly is flexible and convenient. Moreover, the arrangement structure is compact, and the volume and the occupied space can be reduced.
Due to the adoption of the modular air duct system with the multistage fans connected in series, the return air uniformity of the heat exchanger (namely the surface air cooler) can be greatly improved, the regional self-adjustment of the return air quantity of the heat exchanger is realized, and the modular design greatly simplifies the installation of the heat exchanger and the matching of the cold quantity.
The air conditioning unit provided by the invention is a modularized combination, can be combined according to different capacity requirements, is spliced for use, has strong interchangeability and easy maintenance, and is suitable for different air conditioning shells. Because each module is specially provided with an axial flow fan, the module is only responsible for air flow organization adjustment and air quantity and heat exchange control in the module, has a self-adjusting function, and is not interfered or has little interference by other modules. After the modules are assembled, the air flow forms a series structure.
By using the air conditioning unit, the air conditioning unit is separated and modularized, each module is responsible for adjusting air flow by one axial flow fan, so that regional treatment of the air flow is realized, and the air flow is pumped out by the centrifugal fan after being connected in series by a plurality of modules. The improved unit realizes uniform and controllable pressure distribution, and the longitudinal head-on wind speed of the surface cooler is relatively uniform, thereby being beneficial to realizing the limit performance of the surface cooler.
In the air conditioning unit, the surface cooler is convenient to install, the modules can be increased or decreased at will according to different required cold energy, the maintenance and the replacement are simple, and the interchangeability is high. For example, the capacity of one module is 20KW, the two-stage combination is a 40KW unit, and the three-stage combination is a 60KW unit. Each module is provided with an axial flow fan for adjusting air flow and air quantity, insufficient air quantity is made up by the centrifugal fan, and due to the fact that the axial flow fan supplements air quantity required by the unit, the power of the centrifugal fan can be greatly reduced, the overall energy is further improved, the service life of the fan is prolonged, and the reliability of the unit is improved.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010351082.XA CN111425942B (en) | 2020-04-28 | 2020-04-28 | Air conditioning unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010351082.XA CN111425942B (en) | 2020-04-28 | 2020-04-28 | Air conditioning unit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111425942A CN111425942A (en) | 2020-07-17 |
| CN111425942B true CN111425942B (en) | 2025-06-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010351082.XA Active CN111425942B (en) | 2020-04-28 | 2020-04-28 | Air conditioning unit |
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| CN (1) | CN111425942B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113790518A (en) * | 2021-09-18 | 2021-12-14 | 珠海格力电器股份有限公司 | Fan control method and air conditioning unit |
| CN115751467A (en) * | 2022-11-23 | 2023-03-07 | 珠海格力电器股份有限公司 | Modularized fan coil and air conditioner |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009071028A1 (en) * | 2007-11-30 | 2009-06-11 | Jiguang Yan | Fresh air processor with double-stage surface cooler |
| CN203131992U (en) * | 2013-03-04 | 2013-08-14 | 佛山市顺德区高美空调设备有限公司 | Fan coil with non-volute fans |
| CN211977035U (en) * | 2020-04-28 | 2020-11-20 | 珠海格力电器股份有限公司 | Air conditioning units |
-
2020
- 2020-04-28 CN CN202010351082.XA patent/CN111425942B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009071028A1 (en) * | 2007-11-30 | 2009-06-11 | Jiguang Yan | Fresh air processor with double-stage surface cooler |
| CN203131992U (en) * | 2013-03-04 | 2013-08-14 | 佛山市顺德区高美空调设备有限公司 | Fan coil with non-volute fans |
| CN211977035U (en) * | 2020-04-28 | 2020-11-20 | 珠海格力电器股份有限公司 | Air conditioning units |
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| CN111425942A (en) | 2020-07-17 |
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