Modular fan-coil, air conditioner

Abstract

This invention provides a modular fan coil unit and an air conditioner. The modular fan coil unit includes: a first heat exchange module, a second heat exchange unit, and a third heat exchange module. The second heat exchange unit includes at least one second heat exchange module. The first heat exchange module, the second heat exchange unit, and the third heat exchange module are sequentially detachable and assembleable, or the first heat exchange module and the third heat exchange module are detachable and assembleable. The number of second heat exchange modules can be adjusted according to the required heat exchange load. According to this invention, by modularly designing the fan coil unit, when facing different load requirements, only the first heat exchange module, a corresponding number of second heat exchange modules, and the third heat exchange module need to be assembled together, or the first heat exchange module and the third heat exchange module need to be assembled together, to quickly produce the corresponding model of fan coil unit. This makes design and production very convenient, thereby reducing design and development work, reducing production work, and improving production efficiency.

Description

Technical Field

[0001] This invention belongs to the field of air conditioning technology, specifically relating to a modular fan coil unit and an air conditioner. Background Technology

[0002] Fan coil units are terminal products in air conditioning systems, used to regulate indoor environmental comfort. Generally, fan coil unit design and selection are based on the worst weather conditions of recent decades. However, sometimes even worse weather occurs after selection, leading to overload or underload of the designed fan coil units, resulting in insufficient cooling or heating, or overload operation, wasting resources and poor comfort. Inaccurate selection necessitates replacing or adding fan coil units to meet load requirements. However, replacing or adding fan coil units requires complete repair or removal and replacement of the existing units and related equipment, which is not only labor-intensive but also very troublesome. Furthermore, to meet different load requirements, many models of fan coil units are designed. According to national standards, there are 13 models from FP-34 to FP-340. Of course, these models alone cannot meet market demand, as some customers have special load requirements, necessitating the design of even more fan coil unit models, ultimately resulting in dozens or even hundreds of fan coil unit models. Different models have different structures, and assembling each prototype requires starting from the first process and continuing until the last. This is a huge workload for both design and production, and also makes later maintenance very troublesome. Summary of the Invention

[0003] Therefore, the present invention provides a modular fan coil unit that can overcome the shortcomings of requiring the production of a large number of different models of fan coil units to meet different load requirements, which makes design, production and subsequent maintenance very troublesome.

[0004] To address the aforementioned problems, this invention provides a modular fan coil unit, comprising: a first heat exchange module, a second heat exchange unit, and a third heat exchange module. The second heat exchange unit includes at least one second heat exchange module. The first heat exchange module, the second heat exchange unit, and the third heat exchange module are sequentially and detachably assembled together, or the first heat exchange module and the third heat exchange module are sequentially and detachably assembled together. When the first heat exchange module, the second heat exchange unit, and the third heat exchange module are sequentially and detachably assembled together, the number of second heat exchange modules in the second heat exchange unit can be adjusted according to the required heat exchange load.

[0005] In some embodiments, the first heat exchange module includes a first fixing plate, the second heat exchange module includes a second fixing plate, and the third heat exchange module includes a third fixing plate; one of the first fixing plate and the second fixing plate is provided with a first folded edge, and the other is provided with a first overlapping edge, the first folded edge overlapping the first overlapping edge, both the first folded edge and the first overlapping edge are provided with through first threaded holes, and the plate also includes a first fastener, the first fastener being threadedly connected to the two first threaded holes; one of the second fixing plate and the third fixing plate is provided with a second folded edge, and the other is provided with a second overlapping edge, the second folded edge overlapping the second overlapping edge, both the second folded edge and the second overlapping edge are provided with through second threaded holes, and the plate also includes a second fastener, the second fastener being threadedly connected to the two second threaded holes.

[0006] In some embodiments, the first heat exchange module further includes a first heat exchanger fixed to one side of the first fixed plate; the second heat exchange module further includes a second heat exchanger fixed to one side of the second fixed plate; and the third heat exchange module further includes a third heat exchanger fixed to one side of the third fixed plate. The first heat exchanger has a first outlet on the side facing the second heat exchanger, and the second heat exchanger has a first inlet on the side facing the first heat exchanger. The first outlet is adapted to the first inlet and is snap-fitted to the first inlet. The second heat exchanger has a second outlet on the side facing the third heat exchanger, and the third heat exchanger has a second inlet on the side facing the second heat exchanger. The second outlet is adapted to the second inlet and is snap-fitted to the second inlet.

[0007] In some embodiments, a first sealing ring is provided inside the first outlet or the first inlet, and a second sealing ring is provided inside the second outlet or the second inlet.

[0008] In some embodiments, the first heat exchange module further includes a motor, which is fixed to the side of the first fixing plate opposite to the first heat exchanger; the second heat exchange module further includes a first housing and a first fan wheel, the first housing being fixed to the side of the second fixing plate opposite to the second heat exchanger, the first housing having a first mounting cavity, the first fan wheel being installed in the first mounting cavity, and the first housing also having a first air supply channel, one end of the first air supply channel communicating with the first mounting cavity, and the other end communicating with the second heat exchanger; the third heat exchange module further includes a second housing and a second fan wheel, the second housing being fixed to the side of the third fixing plate opposite to the third heat exchanger, the second housing having a second mounting cavity, the second fan wheel being installed in the second mounting cavity, and the second housing also having a second air supply channel, one end of the second air supply channel communicating with the second mounting cavity, and the other end communicating with the third heat exchanger; the first fan wheel has a first drive shaft, the second fan wheel has a second drive shaft, the output shaft of the motor is detachably connected to one end of the first drive shaft via a first coupling, and the other end of the first drive shaft is detachably connected to one end of the second drive shaft via a second coupling.

[0009] In some embodiments, the first heat exchange module further includes a first water receiving tray connected to the first fixed plate, the first water receiving tray being located below the first heat exchanger; the second heat exchange module further includes a second water receiving tray connected to the second fixed plate, the second water receiving tray being located below the second heat exchanger; the third heat exchange module further includes a third water receiving tray connected to the third fixed plate, the third water receiving tray being located below the third heat exchanger.

[0010] In some embodiments, the device further includes a first fixing bracket, a second fixing bracket, a third fastener, a fourth fastener, a fifth fastener, and a sixth fastener. The second water receiving tray has two sides that respectively connect to the first water receiving tray and the third water receiving tray. The first fixing bracket is disposed at the connection point between the first and second water receiving trays. Both the first fixing bracket and the first water receiving tray have through-hole third threaded holes, and the third fastener is threaded into two of the third threaded holes. Both the first fixing bracket and the second water receiving tray have through-hole fourth threaded holes, and the fourth fastener is threaded into two of the fourth threaded holes. The second fixing bracket is disposed at the connection point between the second and third water receiving trays. Both the second fixing bracket and the second water receiving tray have through-hole fifth threaded holes, and the fifth fastener is threaded into two of the fifth threaded holes. Both the second fixing bracket and the third water receiving tray have through-hole sixth threaded holes, and the sixth fastener is threaded into two of the sixth threaded holes.

[0011] In some embodiments, a first sealing strip is provided at the joint between the first water receiving tray and the second water receiving tray, and a second sealing strip is provided at the joint between the second water receiving tray and the third water receiving tray.

[0012] In some embodiments, the first heat exchange module further includes a first cover plate connected to the first fixed plate, the first cover plate being positioned above the first heat exchanger; the second heat exchange module further includes a second cover plate connected to the second fixed plate, the second cover plate being positioned above the second heat exchanger; and the third heat exchange module further includes a third cover plate connected to the third fixed plate, the third cover plate being positioned above the third heat exchanger.

[0013] In some embodiments, a seventh fastener and an eighth fastener are also included. One of the first cover plate and the second cover plate is provided with a third folded edge, and the other is provided with a third overlapping edge. The third folded edge overlaps with the third overlapping edge. Both the third folded edge and the third overlapping edge are provided with through-holes of the seventh threaded holes. The seventh fastener is threadedly connected to the two seventh threaded holes. One of the second cover plate and the third cover plate is provided with a fourth folded edge, and the other is provided with a fourth overlapping edge. The fourth folded edge overlaps with the fourth overlapping edge. Both the fourth folded edge and the fourth overlapping edge are provided with through-holes of the eighth threaded holes. The eighth fastener is threadedly connected to the two eighth threaded holes.

[0014] The present invention also provides an air conditioner including the above-described modular fan coil unit.

[0015] This invention provides a modular fan coil unit and air conditioner. By modularly designing the fan coil unit, only a corresponding number of first, second, and third heat exchange modules are produced during actual manufacturing. When facing different load demands, the corresponding model of fan coil unit can be quickly produced by assembling the first heat exchange module, the corresponding number of second and third heat exchange modules, and so on. The production and assembly process is simple and quick. The first heat exchange module is the starting heat exchange module, and the third heat exchange module is the ending heat exchange module. Regardless of the model of fan coil unit being assembled, these two heat exchange modules must be present. That is, by simply increasing or decreasing the number of second heat exchange modules, the final assembled fan coil unit can be matched to different load demands. This avoids the problem of needing to produce a large number of different models of fan coil units to meet different load requirements. Furthermore, different models of fan coil units can be achieved by assembling only three different heat exchange modules, making the design and production of fan coil units very convenient, thereby reducing design and development work, reducing production workload, and improving production efficiency. Moreover, the heat exchange modules are small and uniform in size, facilitating transportation. If the fan coil unit selected by the after-sales service provider is inaccurate, the load can be adjusted by adding or removing a second heat exchange module without replacing the unit model or adding a fan coil unit, thus reducing after-sales maintenance work. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the modular fan coil unit according to an embodiment of the present invention;

[0017] Figure 2 This is another visual structural diagram of the modular fan coil unit according to an embodiment of the present invention;

[0018] Figure 3 This is an exploded view of a modular fan coil unit according to an embodiment of the present invention;

[0019] Figure 4 This is another exploded view of the modular fan coil unit according to an embodiment of the present invention;

[0020] Figure 5 This is a schematic diagram of the structure of the first heat exchange module of the modular fan coil unit according to an embodiment of the present invention;

[0021] Figure 6 This is another visual structural diagram of the first heat exchange module of the modular fan coil unit according to an embodiment of the present invention;

[0022] Figure 7 This is a schematic diagram of the structure of the second heat exchange module of the modular fan coil unit according to an embodiment of the present invention;

[0023] Figure 8 This is another visual structural diagram of the second heat exchange module of the modular fan coil unit according to an embodiment of the present invention;

[0024] Figure 9 This is a schematic diagram of the third heat exchange module of the modular fan coil unit according to an embodiment of the present invention;

[0025] Figure 10 This is another visual structural diagram of the third heat exchange module of the modular fan coil unit according to an embodiment of the present invention;

[0026] Figure 11 This is a schematic diagram of the first heat exchange module and the third heat exchange module of the modular fan coil unit according to an embodiment of the present invention, assembled together.

[0027] Figure 12 This is another visual structural diagram of the modular fan coil unit of the present invention, showing the first heat exchange module and the third heat exchange module assembled together.

[0028] Figure 13 This is an exploded view of the first heat exchange module and the third heat exchange module of the modular fan coil unit according to an embodiment of the present invention.

[0029] Figure 14 This is another exploded view of the first heat exchange module and the third heat exchange module of the modular fan coil unit according to an embodiment of the present invention.

[0030] Figure 15 This is an enlarged schematic diagram showing that the folded edge of one heat exchange module of the modular fan coil unit of this invention is detachably connected to the overlapping edge of another heat exchange module by fasteners.

[0031] Figure 16 This is an enlarged schematic diagram of a modular fan coil unit according to an embodiment of the present invention, showing the outlet of one heat exchanger inserted into the inlet of another heat exchanger.

[0032] Figure 17 This is an enlarged schematic diagram showing that one water receiving tray and another water receiving tray of a modular fan coil unit according to an embodiment of the present invention are detachably connected together by a fixing frame and fasteners.

[0033] Figure 18 This is an enlarged schematic diagram showing that the motor output shaft of the first heat exchange module and the drive shaft of the third heat exchange module of the modular fan coil unit according to an embodiment of the present invention are detachably connected together by a coupling.

[0034] The reference numerals in the attached figures are as follows:

[0035] 1. First heat exchange module; 11. First fixing plate; 12. First heat exchanger; 13. Motor; 14. First outlet; 15. First water receiving tray; 16. First cover plate; 2. Second heat exchange module; 21. Second fixing plate; 22. Second heat exchanger; 23. First shell; 24. First fan wheel; 25. First inlet; 26. Second outlet; 27. Second water receiving tray; 28. Second cover plate; 3. Third heat exchange module; 31. Third fixing plate; 32. Third heat exchanger; 33. Second shell; 34. Second fan wheel; 35. Second inlet; 36. Third water receiving tray; 37. Third cover plate; 4. First folded edge; 5. Second folded edge; 6. First coupling; 7. Second coupling; 8. First fixing frame; 9. Second fixing frame; 10. First sealing strip; 17. Second sealing strip; 18. Third folded edge; 19. Fourth folded edge. Detailed Implementation

[0036] See also Figures 1 to 18As shown in the embodiment of the present invention, a modular fan coil unit is provided, comprising: a first heat exchange module 1, a second heat exchange unit, and a third heat exchange module 3. The second heat exchange unit includes at least one second heat exchange module 2. The first heat exchange module 1, the second heat exchange unit, and the third heat exchange module 3 are sequentially and detachably assembled together, or the first heat exchange module 1 and the third heat exchange module 3 are sequentially and detachably assembled together. When the first heat exchange module 1, the second heat exchange unit, and the third heat exchange module 3 are sequentially and detachably assembled together, the configuration number of the second heat exchange modules in the second heat exchange unit can be adjusted according to the heat exchange load requirements. In this technical solution, by modularly designing the fan coil unit, only the corresponding number of first heat exchange modules 1, second heat exchange modules 2, and third heat exchange modules 3 are produced in the actual production process. When facing different load requirements, only the first heat exchange module 1, the corresponding number of second heat exchange modules 2, and the third heat exchange modules 3 need to be assembled together to quickly produce the corresponding model of fan coil unit, and the production and assembly process is simple and quick. In this design, the first heat exchange module 1 is the starting heat exchange module, and the third heat exchange module 3 is the ending heat exchange module. Regardless of the type of fan coil unit being assembled, these two heat exchange modules must be present. This means that simply increasing or decreasing the number of the second heat exchange module 2 allows the final assembled fan coil unit to match different load requirements, avoiding the need to produce large quantities of different fan coil units to meet varying load demands. Furthermore, different fan coil unit types can be achieved by assembling only three different heat exchange modules, making fan coil unit design and production very convenient, reducing design and development work, and improving production efficiency. Moreover, the small and uniform size of each heat exchange module facilitates transportation. If the selected fan coil unit is inaccurate, the load can be adjusted by adding or removing the second heat exchange module 2 without needing to replace the unit model or add more fan coil units, reducing after-sales maintenance work. Furthermore, the first heat exchange module 1 and the third heat exchange module 3 can also be detachably assembled together to form the smallest fan coil unit, which matches the minimum load requirement.

[0037] See also Figure 3 and Figure 15As shown, the first heat exchange module 1 includes a first fixing plate 11, the second heat exchange module 2 includes a second fixing plate 21, and the third heat exchange module 3 includes a third fixing plate 31. One of the first fixing plate 11 and the second fixing plate 21 has a first folded edge 4, and the other has a first overlapping edge. The first folded edge 4 overlaps with the first overlapping edge. Both the first folded edge 4 and the first overlapping edge have through-holes in the first threaded holes. The system also includes a first fastener, which is threaded into the two first threaded holes. One of the second fixing plate 21 and the third fixing plate 31 has a second folded edge 5, and the other has a second overlapping edge. The second folded edge 5 overlaps with the second overlapping edge. Both the second folded edge 5 and the second overlapping edge have through-holes in the second threaded holes. The system also includes a second fastener, which is threaded into the two second threaded holes. Each fixing plate is a major fixing component within each heat exchange module. A primary condition for the detachable connection between heat exchange modules is that the fixing plates must be detachably connected. By setting folded edges and overlapping edges, when the fixing plates are detachably connected in sequence, adjacent pairs of folded edges and overlapping edges will overlap together. Detachable connections between the fixing plates can be achieved by threading fasteners into the threaded holes constructed on the folded edges and overlapping edges. This connection method not only simplifies the structural design but also ensures a strong connection. Furthermore, folded edges and overlapping edges must be provided on both the left and right sides of the second fixing plate 21 to ensure that adjacent second fixing plates 21 can be detachably connected together when the second heat exchange module 2 is added or removed.

[0038] See also Figure 4 and Figure 16As shown, the first heat exchange module 1 further includes a first heat exchanger 12, which is fixed to one side of the first fixing plate 11. The second heat exchange module 2 further includes a second heat exchanger 22, which is fixed to one side of the second fixing plate 21. The third heat exchange module 3 further includes a third heat exchanger 32, which is fixed to one side of the third fixing plate 31. The first heat exchanger 12 has a first outlet 14 on the side facing the second heat exchanger 22, and the second heat exchanger 22 has a first inlet 25 on the side facing the first heat exchanger 12. The first outlet 14 is adapted to the first inlet 25 and is snap-connected to the first inlet 25. The second heat exchanger 22 has a second outlet 26 on the side facing the third heat exchanger 32, and the third heat exchanger 32 has a second inlet 35 on the side facing the second heat exchanger 22. The second outlet 26 is adapted to the second inlet 35 and is snap-connected to the second inlet 35. The first heat exchanger 12, the second heat exchanger 22, and the third heat exchanger 32 circulate heat exchange media, which can be either chilled or hot water, enabling the modular fan coil unit of this application to achieve cooling or heating. When the heat exchange modules are detachably connected in sequence, if the heat exchangers are interconnected, only one pipe is needed to inject heat exchange media into each heat exchanger, making operation more convenient. Each heat exchanger has a smaller outlet diameter and a larger inlet diameter, with each outlet inserted into its corresponding inlet, thus achieving detachable interconnection of the heat exchangers in sequence. This connection method is achieved without adding extra components, simplifying the design.

[0039] In one specific implementation, a first sealing ring is provided inside the first outlet 14 or the first inlet 25, and a second sealing ring is provided inside the second outlet 26 or the second inlet 35. The sealing rings prevent leakage at the connection points between the outlets and inlets.

[0040] See also Figure 1 and Figure 18As shown, the first heat exchange module 1 also includes a motor 13, which is fixed to the side of the first fixing plate 11 away from the first heat exchanger 12. The second heat exchange module 2 also includes a first housing 23 and a first fan wheel 24. The first housing 23 is fixed to the side of the second fixing plate 21 away from the second heat exchanger 22. The first housing 23 has a first mounting cavity, and the first fan wheel 24 is installed in the first mounting cavity. The first housing 23 also has a first air supply channel, one end of which communicates with the first mounting cavity, and the other end of which leads to the second heat exchanger 22. The third heat exchange module 3 also includes a second housing 33 and a second fan wheel 34. The second housing 33 is fixed to the side of the third fixing plate 31 away from the third heat exchanger 32. The second housing 33 has a second mounting cavity, and the second fan wheel 34 is installed in the second mounting cavity. The second housing 33 also has a second air supply channel, one end of which communicates with the second mounting cavity, and the other end of which leads to the third heat exchanger 32. The first fan wheel 24 has a first drive shaft, and the second fan wheel 34 has a second drive shaft. The output shaft of the motor 13 is detachably connected to one end of the first drive shaft via a first coupling 6, and the other end of the first drive shaft is detachably connected to one end of the second drive shaft via a second coupling 7. The motor 13 is fixed to the first fixed plate 11 by a motor bracket. The couplings allow the two ends of the first drive shaft to be detachably connected to the output shaft of the motor and the second drive shaft, respectively. This facilitates disassembly and also enables the motor 13 to drive the first fan wheel 24 and the second fan wheel 34 to rotate simultaneously, ensuring that all fan wheels work synchronously and that the outlet air temperature is consistent throughout the fan coil unit. The airflow generated by the first fan wheel 24 during operation is blown towards the second heat exchanger 22 through the first air supply channel, and the airflow generated by the second fan wheel 34 during operation is blown towards the third heat exchanger 32 through the second air supply channel, thereby improving the heat exchange efficiency between each heat exchanger and the air. As the airflow blows towards the heat exchanger, the heat exchanger generates wind resistance, causing some of the airflow to flow to both sides. Therefore, the airflow generated by the second fan wheel 34 can also reach the first heat exchanger 12.

[0041] Specifically, the first heat exchange module 1 further includes a first water receiving tray 15 connected to the first fixed plate 11, and the first water receiving tray 15 is located below the first heat exchanger 12. The second heat exchange module 2 further includes a second water receiving tray 27 connected to the second fixed plate 21, and the second water receiving tray 27 is located below the second heat exchanger 22. The third heat exchange module 3 further includes a third water receiving tray 36 connected to the third fixed plate 31, and the third water receiving tray 36 is located below the third heat exchanger 32. Each water receiving tray is used to collect the condensate generated on each heat exchanger.

[0042] See also Figure 3 and Figure 17As shown, it also includes a first fixing bracket 8, a second fixing bracket 9, a third fastener, a fourth fastener, a fifth fastener, and a sixth fastener. The two sides of the second water receiving tray 27 are respectively connected to the first water receiving tray 15 and the third water receiving tray 36. The first fixing bracket 8 is located at the connection point between the first water receiving tray 15 and the second water receiving tray 27. Both the first fixing bracket 8 and the first water receiving tray 15 have through-hole third threaded holes, and the third fasteners are threaded into the two third threaded holes. Both the first fixing bracket 8 and the second water receiving tray 27 have through-hole fourth threaded holes, and the fourth fasteners are threaded into the two fourth threaded holes. The second fixing bracket 9 is located at the connection point between the second water receiving tray 27 and the third water receiving tray 36. Both the second fixing bracket 9 and the second water receiving tray 27 have through-hole fifth threaded holes, and the fifth fasteners are threaded into the two fifth threaded holes. Both the second fixing bracket 9 and the third water receiving tray 36 have through-hole sixth threaded holes, and the sixth fasteners are threaded into the two sixth threaded holes. The water collection trays are detachably connected, facilitating the assembly and disassembly of the heat exchange modules and ensuring a continuous, uninterrupted flow of condensate from the heat exchangers, preventing it from dripping outside the trays. Due to the unique structure and function of the water collection trays, a mounting bracket facilitates their connection. This bracket includes a bottom wall and two side walls attached to the bottom wall. The bottom wall of each bracket covers the bottom joint of two adjacent water collection trays, and the side walls of each bracket cover the side joints of two adjacent water collection trays. When the third fastener is simultaneously threaded into the third threaded hole of the first fixing bracket 8 and the third threaded hole of the first water receiving tray 15, and the fourth fastener is simultaneously threaded into the fourth threaded hole of the first fixing bracket 8 and the fourth threaded hole of the second water receiving tray 27, the first water receiving tray 15 and the second water receiving tray 27 can be detachably connected; when the fifth fastener is simultaneously threaded into the fifth threaded hole of the second fixing bracket 9 and the fifth threaded hole of the second water receiving tray 27, and the sixth fastener is simultaneously threaded into the sixth threaded hole of the second fixing bracket 9 and the sixth threaded hole of the third water receiving tray 36, the second water receiving tray 27 and the third water receiving tray 36 can be detachably connected.

[0043] Specifically, a first sealing strip 10 is provided at the joint between the first water receiving tray 15 and the second water receiving tray 27, and a second sealing strip 17 is provided at the joint between the second water receiving tray 27 and the third water receiving tray 36. The sealing strips are designed to prevent water leakage at the joints of the water receiving trays.

[0044] See also Figure 2As shown, the first heat exchange module 1 further includes a first cover plate 16 connected to the first fixed plate 11, and the first cover plate 16 is positioned above the first heat exchanger 12; the second heat exchange module 2 further includes a second cover plate 28 connected to the second fixed plate 21, and the second cover plate 28 is positioned above the second heat exchanger 22; the third heat exchange module 3 further includes a third cover plate 37 connected to the third fixed plate 31, and the third cover plate 37 is positioned above the third heat exchanger 32. The cover plate, fixed plate, and water receiving tray work together to guide the airflow blown out from the heat exchangers, ensuring that the airflow blown out from each heat exchanger can only be blown out from its respective front, thus guaranteeing the blowing direction of the airflow after heat exchange.

[0045] In this embodiment, a seventh fastener and an eighth fastener are also included. One of the first cover plate 16 and the second cover plate 28 is provided with a third folded edge 18, and the other is provided with a third overlapping edge. The third folded edge 18 overlaps with the third overlapping edge. Both the third folded edge 18 and the third overlapping edge have through-holes in the seventh threaded holes, and the seventh fastener is threaded into the two seventh threaded holes. One of the second cover plate 28 and the third cover plate 37 is provided with a fourth folded edge 19, and the other is provided with a fourth overlapping edge. The fourth folded edge 19 overlaps with the fourth overlapping edge. Both the fourth folded edge 19 and the fourth overlapping edge have through-holes in the eighth threaded holes, and the eighth fastener is threaded into the two eighth threaded holes. The cover plates are detachably connected together, making the connection more secure when the heat exchange modules are assembled together. Folded edges and overlapping edges are provided on the left and right sides of the second cover plate 28 respectively, ensuring that adjacent second cover plates 28 can be detachably connected when the second heat exchange module 2 is added or removed. The detachable connection method between each cover plate is the same as the detachable connection method between each fixed plate. For details, please refer to the discussion on the connection between each fixed plate above. It will not be repeated here.

[0046] When the second heat exchange unit includes two or more second heat exchange modules 2, the detachable connection method between the components of two adjacent second heat exchange modules 2 can refer to the detachable connection method between the components of the second heat exchange module 2 and the third heat exchange module 3. When the first heat exchange module 1 and the third heat exchange module 3 are detachably connected, the detachable connection method between the components of these two heat exchange modules can refer to the detachable connection method between the components of the first heat exchange module 1 and the second heat exchange module 2.

[0047] According to an embodiment of the present invention, an air conditioner is also provided, including the modular fan coil unit described above.

[0048] It will be readily understood by those skilled in the art that the aforementioned advantageous methods can be freely combined and superimposed without conflict.

[0049] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention. The above are merely preferred embodiments of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present invention, and these improvements and modifications should also be considered within the protection scope of the present invention.

Claims

1. A modular fan coil unit, characterized in that, It includes a first heat exchange module (1), a second heat exchange unit and a third heat exchange module (3), the second heat exchange unit includes at least one second heat exchange module (2), the first heat exchange module (1), the second heat exchange unit and the third heat exchange module (3) are sequentially and detachably assembled together, or the first heat exchange module (1) and the third heat exchange module (3) are sequentially and detachably assembled together. When the first heat exchange module (1), the second heat exchange unit and the third heat exchange module (3) are sequentially and detachably assembled together, the configuration number of the second heat exchange module (2) in the second heat exchange unit can be adjusted according to the requirements of the heat exchange load. The first heat exchange module (1) includes a first fixing plate (11), the second heat exchange module (2) includes a second fixing plate (21), and the third heat exchange module (3) includes a third fixing plate (31); one of the first fixing plate (11) and the second fixing plate (21) is provided with a first folded edge (4), and the other is provided with a first overlapping edge. The first folded edge (4) overlaps with the first overlapping edge. Both the first folded edge (4) and the first overlapping edge are provided with a through first threaded hole. The first fastener is also provided with a first fastener, which is threadedly connected to the two first threaded holes. One of the second fixing plate (21) and the third fixing plate (31) is provided with a second folded edge (5), and the other is provided with a second overlapping edge. The second folded edge (5) overlaps with the second overlapping edge. Both the second folded edge (5) and the second overlapping edge are provided with a through second threaded hole. The second fastener is also provided with a second fastener, which is threadedly connected to the two second threaded holes. The first heat exchange module (1) further includes a first heat exchanger (12), which is fixed to one side of the first fixing plate (11). The second heat exchange module (2) further includes a second heat exchanger (22), which is fixed to one side of the second fixing plate (21). The third heat exchange module (3) further includes a third heat exchanger (32), which is fixed to one side of the third fixing plate (31). The first heat exchanger (12) has a first outlet (14) on the side facing the second heat exchanger (22). 2) The first heat exchanger (12) has a first inlet (25) on the side facing the first heat exchanger (12), and the first outlet (14) is adapted to the first inlet (25) and the first outlet (14) is snap-connected to the first inlet (25); the second heat exchanger (22) has a second outlet (26) on the side facing the third heat exchanger (32), and the third heat exchanger (32) has a second inlet (35) on the side facing the second heat exchanger (22), and the second outlet (26) is adapted to the second inlet (35) and the second outlet (26) is snap-connected to the second inlet (35); The first heat exchange module (1) further includes a motor (13), which is fixed to the side of the first fixing plate (11) away from the first heat exchanger (12); the second heat exchange module (2) further includes a first housing (23) and a first fan wheel (24), the first housing (23) is fixed to the side of the second fixing plate (21) away from the second heat exchanger (22), the first housing (23) has a first mounting cavity, the first fan wheel (24) is installed in the first mounting cavity, the first housing (23) also has a first air supply channel, one end of the first air supply channel is connected to the first mounting cavity, and the other end is connected to the second heat exchanger (22); the third heat exchange module (3) further includes a second housing (33) and a second fan. The first fan wheel (24) has a first drive shaft, and the second fan wheel (34) has a second drive shaft. The output shaft of the motor (13) is detachably connected to one end of the first drive shaft via a first coupling (6). The other end of the first drive shaft is detachably connected to one end of the second drive shaft via a second coupling (7).

2. The modular fan coil unit according to claim 1, characterized in that, A first sealing ring is provided in the first outlet (14) or the first inlet (25), and a second sealing ring is provided in the second outlet (26) or the second inlet (35).

3. The modular fan coil unit according to claim 1 or 2, characterized in that, The first heat exchange module (1) further includes a first water receiving tray (15) connected to the first fixed plate (11), the first water receiving tray (15) being located below the first heat exchanger (12); the second heat exchange module (2) further includes a second water receiving tray (27) connected to the second fixed plate (21), the second water receiving tray (27) being located below the second heat exchanger (22); the third heat exchange module (3) further includes a third water receiving tray (36) connected to the third fixed plate (31), the third water receiving tray (36) being located below the third heat exchanger (32).

4. The modular fan coil unit according to claim 3, characterized in that, It also includes a first fixing bracket (8), a second fixing bracket (9), a third fastener, a fourth fastener, a fifth fastener, and a sixth fastener. The two sides of the second water receiving tray (27) are respectively connected to the first water receiving tray (15) and the third water receiving tray (36). The first fixing bracket (8) is set at the connection between the first water receiving tray (15) and the second water receiving tray (27). Both the first fixing bracket (8) and the first water receiving tray (15) are constructed with through third threaded holes. The third fastener is threadedly connected in the two third threaded holes. The first fixing bracket (8) and the second... Each water receiving tray (27) has a through fourth threaded hole, and the fourth fastener is threaded into the two fourth threaded holes; the second fixing bracket (9) is located at the joint between the second water receiving tray (27) and the third water receiving tray (36), and both the second fixing bracket (9) and the second water receiving tray (27) have through fifth threaded holes, and the fifth fastener is threaded into the two fifth threaded holes; both the second fixing bracket (9) and the third water receiving tray (36) have through sixth threaded holes, and the sixth fastener is threaded into the two sixth threaded holes.

5. The modular fan coil unit according to claim 4, characterized in that, A first sealing strip (10) is provided at the joint between the first water receiving tray (15) and the second water receiving tray (27), and a second sealing strip (17) is provided at the joint between the second water receiving tray (27) and the third water receiving tray (36).

6. The modular fan coil unit according to claim 1 or 2, characterized in that, The first heat exchange module (1) further includes a first cover plate (16) connected to the first fixed plate (11), the first cover plate (16) being above the first heat exchanger (12); the second heat exchange module (2) further includes a second cover plate (28) connected to the second fixed plate (21), the second cover plate (28) being above the second heat exchanger (22); the third heat exchange module (3) further includes a third cover plate (37) connected to the third fixed plate (31), the third cover plate (37) being above the third heat exchanger (32).

7. The modular fan coil unit according to claim 6, characterized in that, It also includes a seventh fastener and an eighth fastener. One of the first cover plate (16) and the second cover plate (28) is provided with a third folded edge (18), and the other is provided with a third overlapping edge. The third folded edge (18) overlaps on the third overlapping edge. Both the third folded edge (18) and the third overlapping edge are provided with a through seventh threaded hole. The seventh fastener is threadedly connected in the two seventh threaded holes. One of the second cover plate (28) and the third cover plate (37) is provided with a fourth folded edge (19), and the other is provided with a fourth overlapping edge. The fourth folded edge (19) overlaps on the fourth overlapping edge. Both the fourth folded edge (19) and the fourth overlapping edge are provided with a through eighth threaded hole. The eighth fastener is threadedly connected in the two eighth threaded holes.

8. An air conditioner, characterized in that, Including modular fan coil units as described in any one of claims 1 to 7.

Images