Air conditioner unit

Abstract

The present invention provides an air conditioning unit. The air conditioning unit includes a heat exchange module. The heat exchange module includes a finned tube cooler and a first fan. The area surrounded by the finned tube cooler forms an air duct, and the first fan is located inside the air duct. There are multiple heat exchange modules, and the multiple heat exchange modules are arranged. 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. By using this air conditioning unit, air can be supplied by multiple fans at different positions in the air supply direction, and the distance differences between different positions of the finned tube cooler and the fans are relatively small. Therefore, the wind speed differences at different positions of different finned tube coolers in the air conditioning unit are small, improving the uniformity of the air flow in the air conditioning unit. Compared with the case where only one fan is arranged at a certain position in the air conditioning unit, the situation where the distance differences between different positions of the finned tube cooler and the fan are very large and cause large wind speed differences will not occur, which is beneficial to giving full play to the optimal heat exchange performance of the whole machine and improving the energy efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of air-conditioning units, and more particularly, to an air-conditioning unit. Background Art

[0002] The design of the air flow organization inside the air-conditioning unit directly affects the size of the overall resistance of the unit, and thus determines the overall capacity and energy consumption of the unit. By optimizing the air flow organization and designing a suitable air duct system to reduce the internal resistance of the unit and increase the air volume, it is of great help to the overall capacity and structural compactness of the unit.

[0003] In order to improve the heat exchange capacity of the air-conditioning unit, a surface cooler with a large heat exchange area is usually designed, and the air is driven by a fan to flow and exchange heat with the surface cooler. The surface cooler can better exert its energy efficiency only when the air speeds at different positions are relatively uniform. However, in actual applications, the return air speeds at different positions of the surface cooler vary greatly. Specifically, the air speed is high at the position close to the fan inside the air-conditioning unit and low at the position far from the fan, making it difficult to achieve the optimal heat exchange performance. Therefore, in the actual use of the air-conditioning unit, there is a problem of how to ensure the air flow uniformity. Summary of the Invention

[0004] The present invention provides an air-conditioning unit to improve the air flow uniformity inside the air-conditioning unit.

[0005] To achieve the above object, the present invention provides an air-conditioning unit, including: a heat exchange module, the heat exchange module includes a surface cooler and a first fan, the area surrounded by the surface cooler forms an air duct, and the first fan is located inside the air duct; there are multiple heat exchange modules, and the multiple heat exchange modules are arranged in sequence, the air ducts of two adjacent heat exchange modules are interconnected, and the multiple first fans in the multiple heat exchange modules all blow air in the same direction.

[0006] Further, among the multiple heat exchange modules, two adjacent surface coolers are in contact with each other.

[0007] Further, the air-conditioning unit further includes a second fan, the second fan is located on one side of the output air of the multiple heat exchange modules, and the air blowing direction of the second fan is the same as that of the first fan.

[0008] Further, the air-conditioning unit further includes: a frame structure, the circumferential direction of the frame structure is the air inlet side, the multiple heat exchange modules are arranged inside the frame structure, 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.

[0009] Further, the air-conditioning unit further includes: a top cover, the top cover is connected to the frame structure to seal the end of the frame structure facing away from the second fan.

[0010] Further, the second blower is located outside the frame structure, and there is a preset cavity between the second blower and the plurality of heat exchange modules. The air conditioner unit further includes: a plurality of side plates, which are arranged around the frame structure, and the plurality of side plates seal the circumference of the preset cavity.

[0011] Further, the plurality of heat exchange modules are arranged in a vertical direction. The air conditioner unit further includes: a water receiving tray, which is located below the plurality of heat exchange modules to receive the condensed water dripping from the surface cooler. The water receiving tray has an avoidance opening, which is arranged opposite to the air duct, and the second blower is located below the water receiving tray.

[0012] Further, the first blower is an axial flow blower, and the second blower is a centrifugal blower.

[0013] Further, the surface cooler is an annular structure with an opening in the circumferential direction. The heat exchange module further includes: a baffle, which seals the opening in the circumferential direction of the surface cooler.

[0014] Further, the heat exchange module further includes: a fixing frame, and both the surface cooler and the first blower are arranged on the fixing frame.

[0015] Applying the technical solution of the present invention, an air conditioner unit is provided. The air conditioner unit includes a heat exchange module, and the heat exchange module includes a surface cooler and a first blower. The area surrounded by the surface cooler is an air duct, and the first blower is located in the air duct; there are a plurality of heat exchange modules, and the plurality of heat exchange modules are arranged. The air ducts of adjacent two heat exchange modules are communicated with each other, and the plurality of first blowers in the plurality of heat exchange modules all blow air in the same direction. By adopting this air conditioner unit, since the plurality of heat exchange modules are arranged, and a first blower is arranged in each surface cooler of each heat exchange module, in this way, air can be blown by a plurality of blowers at different positions in the air supply direction, and the distance difference between different positions of the surface cooler and the blower is relatively small. Therefore, the air speed difference at different positions of different surface coolers in the air conditioner unit is small, and the uniformity of the air flow in the air conditioner unit is improved. Compared with the situation where only one blower is arranged at a certain position in the air conditioner unit, the situation that the distance difference between different positions of the surface cooler and the blower is very large and the air speed difference is very large will not occur, which is beneficial to exerting the optimal heat exchange performance of the whole machine and improving the energy efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings forming a part of this application are used to provide a further understanding of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation to the present invention. In the drawings:

[0017] Figure 1 The structural schematic diagram of the air conditioner unit provided by the embodiment of the present invention is shown;

[0018] Figure 2 shows Figure 1 an exploded view of the air conditioner unit in

[0019] Figure 3 shows Figure 1 a schematic view of the heat exchange module in

[0020] Figure 4 shows Figure 3 an exploded view of the heat exchange module in

[0021] Among them, the above-mentioned drawings include the following reference numerals:

[0022] 10. Heat exchange module; 11. Surface cooler; 12. First fan; 13. Baffle; 14. Fixing bracket; 15. Side plate; 20. Second fan; 30. Frame structure; 41. Top cover; 42. Side plate; 50. Water receiving tray; 60. Electric control box. Detailed implementation manners

[0023] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and in no way constitutes a limitation to the present invention and its application or use. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0024] As shown in the drawings, an embodiment of the present invention provides an air conditioner unit, including: a heat exchange module 10, the heat exchange module 10 includes a surface cooler 11 and a first fan 12, the area surrounded by the surface cooler 11 is an air duct, and the first fan 12 is located in the air duct; there are multiple heat exchange modules 10, the multiple heat exchange modules 10 are arranged, the air ducts of two adjacent heat exchange modules 10 are communicated with each other, and the multiple first fans 12 in the multiple heat exchange modules 10 all send air in the same direction.

[0025] Applying the technical solution of the present invention, an air conditioning unit is provided. The air conditioning unit includes a heat exchange module 10, and the heat exchange module 10 includes a finned tube cooler 11 and a first fan 12. The area surrounded by the finned tube cooler 11 is an air duct, and the first fan 12 is located in the air duct; there are multiple heat exchange modules 10, and the multiple heat exchange modules 10 are arranged. The air ducts of two adjacent heat exchange modules 10 are communicated with each other, and the multiple first fans 12 in the multiple heat exchange modules 10 all send air in the same direction. With this air conditioning unit, since the multiple heat exchange modules 10 are arranged, and the first fan 12 is arranged in the finned tube cooler 11 of each heat exchange module 10, air can be sent by multiple fans at different positions in the air supply direction, and the distance difference between different positions of the finned tube cooler 11 and the fan is relatively small. Therefore, the air speed difference at different positions of different finned tube coolers 11 in the air conditioning unit is small, improving the uniformity of the air flow in the air conditioning unit. Compared with the situation where only one fan is arranged at a certain position in the air conditioning unit, the situation where the distance difference between different positions of the finned tube cooler 11 and the fan is very large and the air speed difference is very large will not occur, which is beneficial to giving full play to the optimal heat exchange performance of the whole machine and improving the energy efficiency. Moreover, adopting a modular structure, the appropriate number of heat exchange modules 10 can be selected for assembly according to the power and heat exchange requirements, and the assembly is flexible and convenient.

[0026] In this embodiment, among the multiple heat exchange modules 10, two adjacent finned tube coolers 11 are in contact with each other. This can avoid having a gap between adjacent finned tube coolers 11, so as to prevent air from entering the air duct through the gap without exchanging heat through the finned tube cooler 11.

[0027] Optionally, the lower part of the air duct has an air outlet, and the first fan 12 is located in the lower area of the air duct, which can improve the return air effect. Through the operation of the first fan 12, the air outside the heat exchange module 10 passes around the finned tube cooler 11 and exchanges heat with the finned tube cooler 11 and then enters the air duct, and then blows out from the air outlet.

[0028] In another embodiment not shown, the finned tube coolers 11 in the multiple heat exchange modules 10 are of an integral structure, that is, the air conditioning unit includes an integral total finned tube cooler, and the total finned tube cooler is divided into multiple sections along its own length direction, and each section forms the finned tube cooler 11 in a heat exchange module 10. This is convenient for the manufacture of the finned tube cooler 11.

[0029] In this embodiment, the air conditioning unit further includes a second fan 20, and the second fan 20 is located on one side of the output air of the multiple 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 assistance to the air flow, ensure sufficient air speed and air volume, and improve the heat exchange effect.

[0030] Optionally, the rotation speeds of the multiple first fans 12 can be adjusted separately to adjust the rotation speeds at different positions and try to make the air speeds at different positions uniform. The rotation speed of the second fan 20 is adjustable.

[0031] In this embodiment, the first fan 12 is an axial flow fan, and the second fan 20 is a centrifugal fan. In this way, the ventilation effect is good and the structure is compact. Of course, other types of fans can also be set according to needs.

[0032] In this embodiment, the air conditioner unit further includes: a frame structure 30. The circumferential direction of the frame structure 30 is the air inlet side. A 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. The second fan 20 is arranged at one end of the frame structure 30. The frame structure 30 facilitates the arrangement and installation of components such as a plurality of heat exchange modules 10. The use of the frame structure 30 can reduce the wind resistance, is light in weight and high in strength.

[0033] In this embodiment, the air conditioner unit further includes: a top cover 41. The top cover 41 is connected to the frame structure 30 to block one end of the frame structure 30 facing away from the second fan 20. Through the above setting, it is possible to prevent air from entering the air duct from the end of the frame structure 30 and thus failing to achieve the heat exchange effect.

[0034] In this embodiment, the second fan 20 is located outside the frame structure 30. There is a preset cavity between the second fan 20 and the plurality of heat exchange modules 10. The air conditioner unit further includes: a plurality of side plates 42. The plurality of side plates 42 are arranged around the frame structure 30. The plurality of side plates 42 block the circumferential direction of the preset cavity. Through the plurality of side plates 42, it is possible to prevent air from entering the preset cavity from the circumferential direction of the preset cavity, and the air can only enter the preset cavity from the air duct of the heat exchange module 10.

[0035] In this embodiment, the plurality of heat exchange modules 10 are arranged in a vertical direction. The air conditioner unit further includes: a water receiving tray 50. The water receiving tray 50 is located below the plurality of heat exchange modules 10 to receive the condensed water dripping from the surface cooler 11. The water receiving tray 50 has an avoidance opening, and the avoidance opening is arranged opposite to the air duct. The second fan 20 is located below the water receiving tray 50. Through the water receiving tray 50, the condensed water dripping from the surface cooler 11 can be collected centrally. Moreover, by providing the avoidance opening, it is possible to prevent the water receiving tray 50 from obstructing the flow of gas.

[0036] In this embodiment, the air conditioner unit further includes an electric control box 60. The electric control box 60 is arranged on the frame structure 30. In this way, it is convenient for wiring layout and the control of the air conditioner unit.

[0037] In this embodiment, the finned tube heat exchanger 11 has an annular structure with an opening in the circumferential direction. The heat exchange module 10 further includes a baffle 13 that seals the opening in the circumferential direction of the finned tube heat exchanger 11. Setting the finned tube heat exchanger 11 as an annular structure can increase the contact area with air, improve the heat exchange effect, and enhance the compactness of the air conditioner unit. When manufacturing the finned tube heat exchanger 11, due to process reasons, it is difficult to form a closed structure in the circumferential direction, and the opening is provided to facilitate processing. At the same time, in order to prevent air from entering through the opening and failing to achieve the heat exchange effect, the baffle 13 is provided to block the opening. Of course, if the process is feasible, the finned tube heat exchanger 11 can also be set as an annular structure without an opening in the circumferential direction to further increase the heat exchange area. The above finned tube heat exchanger is similar to a G-type structure. It can also be set as a finned tube heat exchanger with other structures according to needs, such as U-type, V-type, etc.

[0038] In this embodiment, the heat exchange module 10 further includes a fixing frame 14, and both the finned tube heat exchanger 11 and the first fan 12 are arranged on the fixing frame 14. Through the fixing frame 14, it is convenient to assemble components such as the finned tube heat exchanger 11 and the first fan 12.

[0039] Optionally, the fixing frame 14 includes a bottom plate and a vertical plate arranged on the bottom plate. The vertical plate is connected to the finned tube heat exchanger 11. The bottom plate has an opening, and the first fan 12 is arranged on the bottom plate. Further, the vertical plate has a flanging, and the flanging of the vertical plate cooperates with the end face of the finned tube heat exchanger 11 to improve the connection reliability.

[0040] Specifically, the finned tube heat exchanger 11 includes a plurality of fins arranged in an annular pattern and a plurality of annular heat exchange tubes. Each heat exchange tube passes through a plurality of fins. The finned tube heat exchanger 11 further includes side plates 15 located at the ends of the plurality of heat exchange tubes to fix the heat exchange tubes.

[0041] Specifically, the above air conditioner unit is a computer room air conditioner unit, and the air conditioner unit can also be understood as an air conditioner. With this air conditioner unit, since a plurality of heat exchange modules 10 are arranged, and the first fan 12 is arranged in each finned tube heat exchanger 11 in each heat exchange module 10, air can be supplied by a plurality of fans at different positions in the air supply direction. The distance difference between different positions of the finned tube heat exchanger 11 and the fan is relatively small. Therefore, the wind speed difference at different positions of different finned tube heat exchangers 11 in the air conditioner unit is small, improving the uniformity of the air flow in the air conditioner unit. Compared with the air conditioner unit with a fan only arranged at a certain position, the situation where the distance difference between different positions of the finned tube heat exchanger 11 and the fan is very large and the wind speed difference is very large will not occur, which is beneficial to exerting the optimal heat exchange performance of the whole machine and improving the energy efficiency. Moreover, adopting a modular structure, the appropriate number of heat exchange modules 10 can be selected for assembly according to the power and heat exchange requirements, and the assembly is flexible and convenient. Moreover, the above layout structure is compact, which can reduce the volume and occupied space.

[0042] Due to the adoption of the modular air duct system with multiple-stage fans in series of the present invention, the return air uniformity of the heat exchanger (i.e., the surface cooler) can be greatly improved, the regional self-regulation of the return air volume of the heat exchanger is realized, and the modular design greatly simplifies the installation of the heat exchanger and the matching of cooling capacity.

[0043] The air conditioning unit provided by the present invention is modularly combined, can be combined and assembled according to different capacity requirements, has strong interchangeability, is easy to maintain, and is applicable to different air conditioning casings. Since each module is specially equipped with an axial flow fan, which is only responsible for the regulation of the air flow organization, air volume and heat transfer control within the module, and plays a self-regulation role, it is less affected or interfered by other modules. After multiple modules are assembled, the air flow forms a series structure.

[0044] When the air conditioning unit of the present invention is applied, it is separated and modularly processed. Each module is regulated by an axial flow fan to realize regional air flow processing. After the air flow passes through multiple modules in series, it is extracted by a centrifugal fan. The improved unit realizes uniform and controllable pressure distribution, and the longitudinal face velocity of the surface cooler is relatively uniform, which is beneficial to realizing the ultimate performance of the surface cooler.

[0045] In the above air conditioning unit, the surface cooler is easy to install. According to different required cooling capacities, the modules can be increased or decreased at will, the maintenance and replacement are simple, and the interchangeability is strong. For example, the capacity of one module is 20kw, the double-stage combination is a 40KW unit, and the three-stage is a 60KW unit. Each module is regulated by an axial flow fan for air flow and air volume. The insufficient air volume is supplemented by a centrifugal fan. Just because of this, the axial flow fan supplements the air volume required by the unit, which can greatly reduce the power of the centrifugal fan, thereby improving the overall energy efficiency of the unit, prolonging the service life of the fan, and improving the reliability of the unit.

[0046] The above are only the preferred embodiments of the present invention and are not used to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An air conditioning unit, characterized in that, include: A heat exchange module (10), the heat exchange module (10) comprising a surface cooler (11) and a first fan (12), the area formed by the surface cooler (11) surrounding the surface cooler (11) being an air duct, and the first fan (12) being located in the air duct; There are a plurality of heat exchange modules (10), and the plurality of heat exchange modules (10) are arranged in an array, the air ducts of two adjacent heat exchange modules (10) are interconnected, and the plurality of first fans (12) in the plurality of heat exchange modules (10) all blow air in the same direction; in the plurality of heat exchange modules (10), two adjacent surface coolers (11) abut against each other.

2. The air conditioning unit according to claim 1, characterized in that, The air conditioning unit further comprises a second fan (20), the second fan (20) being located on one side of the output air of the plurality of heat exchange modules (10), and the air supply direction of the second fan (20) being the same as that of the first fan (12).

3. The air conditioning unit according to claim 2, characterized in that, The air conditioning unit also includes: A frame structure (30), wherein the circumference of the frame structure (30) is an air inlet side, a plurality of the heat exchange modules (10) are arranged in an array within 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).

4. The air conditioning unit according to claim 3, characterized in that, The air conditioning unit also includes: A top cover (41), the top cover (41) being connected to the frame structure (30) to block an end of the frame structure (30) that faces away from the second fan (20).

5. The air conditioning unit according to claim 3, characterized in that, The second fan (20) is located outside the frame structure (30), a preset cavity is provided between the second fan (20) and the plurality of heat exchange modules (10), and the air conditioning unit further comprises: A plurality of side panels (42) are arranged around the frame structure (30), and the plurality of side panels (42) block the circumference of the preset cavity.

6. The air conditioning unit according to claim 2, characterized in that, The plurality of heat exchange modules (10) are arranged in a vertical direction, and the air conditioning unit further comprises: A water receiving tray (50), the water receiving tray (50) is located below the plurality of heat exchange modules (10) to receive condensed water dripping from the surface cooler (11), the water receiving tray (50) is provided with a avoidance opening, the avoidance opening is arranged opposite to the air duct, and the second fan (20) is located below the water receiving tray (50).

7. The air conditioning unit according to claim 2, characterized in that, The first fan (12) is an axial flow fan, and the second fan (20) is a centrifugal fan.

8. The air conditioning unit according to claim 1, characterized in that, The surface cooler (11) is an annular structure having an opening in the circumferential direction, and the heat exchange module (10) further comprises: A baffle (13), wherein the baffle (13) blocks the circumferential opening of the surface cooler (11).

9. The air conditioning unit according to claim 1, characterized in that, The heat exchange module (10) further comprises: A fixing frame (14), wherein the surface cooler (11) and the first fan (12) are both arranged on the fixing frame (14).

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