Fan-coil water collecting structure, fan-coil assembly and air conditioning system

Abstract

The utility model discloses fan -coil water receiving structure, fan -coil assembly and air conditioning system, fan -coil assembly includes the shell, and the shell forms and has the first water pan in the receiving cavity and the receiving cavity, and the part of outer wall of shell is concave and forms the water receiving cavity, the water receiving cavity is provided with the hole of avoiding that the external coil joint passes, and the bottom of water receiving cavity is equipped with the drain hole and first water pan intercommunication. Through the water receiving cavity of the outer wall of shell concave formation, to the condensation water of coil joint place, avoid the condensation water of coil joint outside drop, and the design of concave formation water receiving cavity can reduce the influence to fan -coil water receiving structure overall sealing performance, reach the effect that give both sides to sealing performance and the condensation water of external receiving.

Description

Technical Field

[0001] This utility model relates to the field of temperature control technology, and in particular to a fan coil water connection structure, a fan coil unit assembly, and an air conditioning system. Background Technology

[0002] Fan coil units are common terminal devices in air conditioning systems. During the cooling process, the temperature of the coil is relatively low, and condensation will form on its surface. Therefore, a drip tray is usually installed below the coil to collect the condensation on its surface.

[0003] In the process of realizing this invention, the inventors discovered that the prior art has at least the following problems: However, existing condensate trays are typically located inside the casing, while the fan coil unit needs to extend outside to connect to external water pipes. Condensation also occurs at the connection point, which the condensate tray cannot collect, causing it to drip directly onto the ceiling and potentially leading to leaks. To address this, some condensate trays extend to the outside of the casing, collecting condensation from both the fan coil surface and the connection point. However, this design compromises the fan coil unit's seal, affecting the cooling efficiency of the air conditioning system. Furthermore, external debris can easily enter the condensate tray and cause blockages.

[0004] Therefore, how to ensure the overall airtightness of the machine while also absorbing condensation at the connection between the coil and the external water pipe has become a technical problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0005] In view of this, the present invention provides a fan coil water receiving structure, a fan coil unit assembly and an air conditioning system, which has the effect of taking into account the sealing performance of the whole machine and receiving condensate at the coil joint.

[0006] On one hand, this application provides a fan coil water receiving structure, including a housing, the housing forming a receiving cavity and a first water receiving tray located in the receiving cavity, a portion of the outer wall of the housing being recessed to form a water receiving cavity; the water receiving cavity is provided with a clearance hole for an external coil connector to pass through, and the bottom of the water receiving cavity is provided with a drain hole communicating with the first water receiving tray.

[0007] On the other hand, this application also provides a fan coil unit assembly, including a fan coil unit and a fan coil unit water receiving structure as described above. The fan coil unit is installed in the receiving cavity, the first water receiving tray is located below the fan coil unit, and the end of the fan coil unit forms a coil joint. The coil joint passes through the clearance hole and extends into the water receiving cavity.

[0008] In another aspect, this application also provides an air conditioning system, including the fan coil unit assembly described above.

[0009] The fan coil unit water receiving structure provided by this utility model forms a water receiving cavity by making the outer wall of the outer shell concave, and the water receiving cavity is provided with a clearance hole, so that the coil connector can pass through the clearance hole and extend into the water receiving cavity. Therefore, the condensate at the coil connector can drip into the water receiving cavity and flow into the first water receiving tray through the drain hole, thus preventing the condensate at the coil connector from dripping outward. Moreover, the concave outer wall of the outer shell forms a water receiving cavity for receiving external condensate. Compared with the method of extending the water receiving tray inside the outer shell to the outside to receive condensate, it can reduce the impact on the overall sealing performance of the fan coil unit, and achieve the effect of balancing sealing performance and receiving external condensate. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the structure of a fan coil unit assembly provided in an embodiment of the present invention; Figure 2 for Figure 1 A cross-sectional view of the fan coil unit assembly shown in the figure; Figure 3 for Figure 1 An exploded view of the fan coil unit assembly shown in the diagram; Figure 4 for Figure 3 A schematic diagram of the end plate structure shown; Figure 5 for Figure 4 A schematic diagram of the end plate structure shown from another perspective; Figure 6 for Figure 4 A schematic diagram of the end plate structure shown from another perspective; Figure 7 for Figure 4 A sectional view of the end plate structure shown; Figure 8 This is a schematic diagram of the structure of a fan coil unit assembly provided in another embodiment of the present invention; Figure 9 for Figure 8 The diagram shows an exploded view of the fan coil unit assembly.

[0011] In the diagram: 100, Fan coil unit assembly; 101, Fan coil unit water receiving structure; 102, Fan coil unit; 103, Coil unit connector; 104, External pipeline; 10, Outer shell; 14, First water receiving tray; 16, Receiving cavity; 18, Shell body; 20, End plate structure; 22, Water receiving cavity; 24, Clearance hole; 26, Drain hole; 30, Mounting port; 32, Main body; 34, Flange; 36, Guide surface; 38, End face; 42, Second water receiving tray; 44, Water outlet. Detailed Implementation

[0012] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0013] It should be noted that all directional indicators (such as up, down, left, right, front, back, inside, outside, top, bottom, etc.) in the embodiments of this utility model are only used to explain the relative positional relationship between the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0014] It should also be noted that when a component is referred to as "fixed to" or "set on" another component, the component may be directly on the other component or there may be an intervening component present. When a component is referred to as "connected to" another component, it may be directly connected to the other component or there may be an intervening component present.

[0015] Please see Figures 1 to 7 An embodiment of the present invention provides a fan coil unit assembly 100, including a fan coil unit water receiving structure 101 and a fan coil unit 102. The fan coil unit water receiving structure 101 includes a housing 10 and a first water receiving tray 14. The housing 10 is provided with a receiving cavity 16. The fan coil unit 102 and the first water receiving tray 14 are located in the receiving cavity 16, and the first water receiving tray 14 is located below the fan coil unit 102 to receive condensation on the surface of the fan coil unit 102.

[0016] A portion of the outer wall of the outer casing 10 has a recessed water receiving cavity 22. The water receiving cavity 22 is provided with a clearance hole 24 and a drain hole 26. The clearance hole 24 communicates with the receiving cavity 16 and is used for the coil connector 103 of the fan coil unit 102 to pass through, allowing the coil connector 103 to pass through the clearance hole 24 from the receiving cavity 16 and extend into the water receiving cavity 22. The drain hole 26 is located at the bottom of the water receiving cavity 22 and communicates with the first water receiving tray 14, allowing water in the water receiving cavity 22 to flow into the first water receiving tray 14 through the drain hole 26. The clearance hole 24 is located above the drain hole 26.

[0017] By making the outer wall of the outer casing 10 concave to form a water receiving cavity 22, the condensate at the coil connector 103 can drip into the water receiving cavity 22 and flow into the first water receiving tray 14 through the drain hole 26, thus preventing the condensate at the coil connector 103 from dripping outwards. Moreover, by forming the water receiving cavity 22 in a concave manner to receive external condensate, compared to making the first water receiving tray 14 extend outside the outer casing 10 to receive external condensate, the impact on the overall sealing performance of the fan coil assembly 100 can be reduced, achieving the effect of balancing sealing performance and receiving external condensate. At the same time, it can also reduce the risk of external impurities entering the first water receiving tray 14.

[0018] The outer shell 10 includes a shell body 18 and an end plate structure 20 connected to the shell body 18. A receiving cavity 16 is located inside the shell body 18. The end plate structure 20 is provided with a water receiving cavity 22, a clearance hole 24, and a drain hole 26. During the production process, the shell body 18 and the end plate structure 20 can be formed separately. After the water receiving cavity 22, the clearance hole 24, and the drain hole 26 are formed on the end plate structure 20, the end plate structure 20 is then assembled with the shell body 18, which helps to reduce the difficulty of production.

[0019] In one embodiment, the housing body 18 is square, having a top, a bottom, and a side portion surrounding the top and bottom. A fan coil unit 102 is located between the top and bottom, a first water collection tray 14 is located between the fan coil unit 102 and the bottom, and an end plate structure 20 is disposed on the side portion of the housing body 18. Of course, the housing body can be an irregular shape and adapted to different air conditioning designs.

[0020] The shell body 18 is provided with an installation port 30 that communicates with the receiving cavity 16. The end plate structure 20 is installed to the installation port 30, with part of it located inside the receiving cavity 16 of the shell body 18 and part of it located outside the shell body 18. The drain hole 26 is located inside the receiving cavity 16, that is, the drain hole 26 is located on the part of the end plate structure 20 located inside the receiving cavity 16. By providing an installation port 30 on the shell body 18 for the installation of the end plate structure 20, the overall structure is improved in terms of compactness. It can hide the end plate structure 20, making the overall appearance of the fan coil water receiving structure 101 neater. Furthermore, since both the drain hole 26 and the first water receiving tray 14 are located inside the receiving cavity 16, water in the water receiving cavity 22 can easily flow into the first water receiving tray 14 through the drain hole 26.

[0021] Understandably, in order to enhance the sealing performance of the fan coil unit water inlet structure 101, a sealing treatment can be performed between the end plate structure 20 and the mounting port 30, such as by setting a sealing ring or sealant between them, to reduce the impact of the installation gap between the end plate structure 20 and the shell body 18 on the sealing performance.

[0022] The drain hole 26 is connected to the first water receiving tray 14, which means that the condensed water in the water receiving cavity 22 can flow into the first water receiving tray 14 through the drain hole 26. This connection can be made by means of an intermediate element, such as a water pipe, through which the condensed water in the water receiving cavity 22 flows into the first water receiving tray 14. Alternatively, the connection can be made directly without the aid of an intermediate element, for example, by placing the drain hole 26 above the first water receiving tray 14, so that the condensed water in the water receiving cavity 22 can automatically flow into the first water receiving tray 14 under the action of gravity.

[0023] In an alternative example, the drain hole 26 is located above the first water receiving tray 14. After the water in the water receiving cavity 22 is discharged from the drain hole 26, it can flow directly into the first water receiving tray 14 without the need for intermediate components to connect. The overall structure is simpler and the production and assembly difficulty is reduced. Furthermore, the drain hole 26 is located above the first water receiving tray 14, and the drain hole 26 is also set on the end plate structure 20, so that the part of the end plate structure 20 located in the receiving cavity 16 is above the first water receiving tray 14. Since the end plate structure 20 will contact the coil connector 103 of the fan coil unit 102, the temperature of the end plate structure 20 is relatively low, and condensation may also occur on its inner surface. The first water receiving tray 14 is located below the end plate structure 20, so that the first water receiving tray 14 can collect the condensation on the surface of the end plate structure 20. Therefore, the part of the end plate structure 20 located in the receiving cavity 16 does not need to be insulated with thermal insulation cotton to prevent condensation, which helps to simplify the internal structure of the fan coil water receiving structure 101 and reduce production costs.

[0024] The drain hole 26 is located at the bottom of the end plate structure 20 so that the condensate collected in the water receiving cavity 22 can flow into the first water receiving tray 14 through the drain hole 26 as much as possible.

[0025] The number of drainage holes 26 can be one or more. In an optional example, the bottom of the end plate structure 20 is provided with multiple drainage holes 26, which are spaced apart in one direction to enhance the drainage effect.

[0026] In one embodiment, the end plate structure 20 includes a main body 32 and a flange 34 disposed on the outer periphery of the main body 32. The main body 32 is recessed into the receiving cavity 16, that is, the main body 32 is recessed relative to the shell body 18 and extends into the receiving cavity 16. The water receiving cavity 22, the clearance hole 24, and the drain hole 26 are all disposed in the main body 32. The main body 32 is located inside the mounting opening 30, and the flange 34 is located outside the shell body 18 and connected to the shell body 18. The flange 34 extends from the periphery of the main body 32 in a direction perpendicular to the recessed direction, and the outer diameter of the flange 34 is larger than the inner diameter of the mounting opening 30, so that the flange 34 cannot pass through the mounting opening 30, thereby preventing the end plate structure 20 from falling into the receiving cavity 16 through the mounting opening 30 during installation. At the same time, it can also increase the contact area between the end plate structure 20 and the shell body 18, facilitating the fixing operation, so as to quickly install the end plate structure 20 onto the shell body 18.

[0027] Optionally, the flange 34 is fitted to the shell body 18, and the flange 34 and the shell body 18 can be mechanically connected by screws or other connectors, or they can be glued and fixed by adhesives, as long as the end plate structure 20 can be fixed to the shell body 18.

[0028] The main body 32 and the flange 34 are integrally formed to avoid the assembly gap between the main body 32 and the flange 34, which would affect the sealing performance of the storage cavity 16.

[0029] The main body 32 includes an end plate and a surrounding wall around the end plate. The surrounding wall is square and forms a water receiving cavity 22 by enclosing the end plate. A flange 34 is provided on the side of the surrounding wall away from the main body 32 and extends outward. A clearance hole 24 is provided through the end plate, and a drainage hole 26 is provided at the connection between the end plate and the surrounding wall. The side of the surrounding wall away from the end plate is open.

[0030] In one embodiment, a guide surface 36 is provided inside the water receiving cavity 22. The guide surface 36 is located below the coil connector 103. The guide surface 36 is inclined from the concave direction of the end plate structure 20 (i.e., from the opening towards the end plate) towards the first water receiving tray 14, and the first water receiving tray 14 is located below the end plate structure 20. Therefore, the guide surface 36 extends downward in the concave direction, and the drain hole 26 is located below the guide surface 36. Condensation at the coil connector 103 can drip onto the guide surface 36 and flow downward along the guide surface 36, guiding the condensation to flow towards the drain hole 26. At the same time, it can also avoid the risk of condensation collected at the bottom of the water receiving cavity 22 flowing out from the opening.

[0031] Along the concave direction of the end plate structure 20, the distance between the guide surface 36 and the opening is less than the distance between the coil connector 103 and the opening. That is, the side of the guide surface 36 away from the receiving cavity 16 extends beyond the end of the coil connector 103 away from the receiving cavity 16 to ensure that the condensate on the coil connector 103 can drip onto the guide surface 36.

[0032] The water receiving cavity 22 includes an end face 38 in the concave direction, which is the surface of the end plate opposite to the opening. A clearance hole 24 penetrates the end face 38 and communicates with the water receiving cavity 22. A guide surface 36 extends downwards at an angle close to the end face 38, with its bottom end connecting to the bottom end of the end face 38 at an angle. A drain hole 26 is located at the junction of the end face 38 and the guide surface 36. Condensation dripping onto the guide surface 36 can flow to the junction of the end face 38 and the guide surface 36 under the guidance of the guide surface 36. The drain hole 26, located at this junction, facilitates the drainage of condensation from the water receiving cavity 22.

[0033] The length of the guide surface 36 in the concave direction is less than the concave depth of the water receiving cavity 22. Therefore, there is still a certain distance between the guide surface 36 and the opening of the end plate structure 20, so that the bottom of the end plate structure 20 forms an inclined portion and a straight portion. The surface of the inclined portion forms the guide surface 36, which guides the flow of condensate. The straight portion is located outside the inclined portion, which increases the contact area between the end plate structure 20 and other components (such as the second water receiving tray) to form a better support effect. In one embodiment, the fan coil unit assembly 100 also includes an external pipe 104. One end of the external pipe 104 is connected to the coil connector 103 of the fan coil unit 102, and the other end is used to connect to other components of the air conditioning system, such as the condenser. Since the coil connector 103 of the fan coil unit 102 is located inside the water receiving chamber 22, the connection between the external pipeline 104 and the coil connector 103 is located inside the water receiving chamber 22. The water receiving chamber 22 can not only receive condensate, but also receive water that leaks from the connection between the external pipeline 104 and the coil connector 103 due to aging and other problems.

[0034] There are two external pipes 104. The two ends of the fan coil unit 102 form two coil connectors 103. The end plate structure 20 is provided with two mutually spaced clearance holes 24. Each coil connector 103 passes through a corresponding clearance hole 24, and both coil connectors 103 are located in the water receiving cavity 22 of the end plate structure 20. Each external pipe 104 is connected to a corresponding coil connector 103.

[0035] Please see Figure 8 and Figure 9In another embodiment, the fan coil unit water receiving structure 101 further includes a second water receiving tray 42 disposed outside the outer casing 10. One end of the second water receiving tray 42 is located inside the water receiving cavity 22 and has a water outlet 44 communicating with the water receiving cavity 22. The other end of the second water receiving tray 42 extends away from the outer casing 10 to the outside of the water receiving cavity 22. The end of the external pipeline 104 away from the coil connector 103 extends out of the water receiving cavity 22. The second water receiving tray 42 is located below the external pipeline 104 to collect condensate on the surface of the external pipeline 104 and flows into the water receiving cavity 22 through the water outlet 44. Finally, it flows into the first water receiving tray 14 through the drain hole 26 communicating with the water receiving cavity 22. This allows the fan coil unit water receiving structure 101 to collect not only the condensate of the fan coil unit 102 but also the condensate of the external pipeline 104 connected to the fan coil unit 102.

[0036] The second water receiving tray 42 extends upward at an angle away from the outer casing 10, so that the height of the end of the second water receiving tray 42 away from the outer casing 10 is higher than the height of the end of the second water receiving tray 42 close to the outer casing 10. After the condensed water on the outer pipe 104 flows into the second water receiving tray 42, it will flow along the second water receiving tray 42 towards the water receiving cavity 22, so as to guide the condensed water to flow into the water receiving cavity 22, and at the same time prevent the condensed water in the second water receiving tray 42 from flowing out from the end away from the outer casing 10.

[0037] This utility model also provides an air conditioning system having the aforementioned fan coil unit assembly 100, the specific structure of which is described in the above embodiments. Since the air conditioning system employs all the technical solutions of all the above embodiments, it possesses at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be elaborated upon here.

[0038] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. A fan coil unit water connection structure, characterized in that, The device includes an outer shell, which has a storage cavity and a first water receiving tray located within the storage cavity. A portion of the outer wall of the outer shell is recessed to form a water receiving cavity. The water receiving cavity is provided with a clearance hole for an external coil connector to pass through, and the bottom of the water receiving cavity is provided with a drain hole communicating with the first water receiving tray.

2. The fan coil unit water connection structure according to claim 1, characterized in that, The outer shell includes a shell body and an end plate structure connected to the shell body. The shell body is provided with the storage cavity, and the end plate structure is provided with the water receiving cavity.

3. The fan coil unit water connection structure according to claim 2, characterized in that, The drain hole is located above the first water receiving tray.

4. The fan coil unit water connection structure according to claim 2, characterized in that, The end plate structure includes a main body recessed into the receiving cavity and a flange disposed on the outer periphery of the main body. The water receiving cavity, the clearance hole, and the drainage hole are disposed on the main body, and the flange is located outside the shell body and connected to the shell body.

5. The fan coil unit water connection structure according to claim 2, characterized in that, The water receiving cavity is provided with a flow guiding surface, which is inclined from the concave direction of the end plate structure toward the first water receiving tray.

6. The fan coil unit water connection structure according to claim 5, characterized in that, The water receiving cavity includes an end face in the concave direction, the guide surface extends downward at an angle to the bottom of the end face, and the drain hole is located at the connection between the end face and the guide surface.

7. The fan coil unit water connection structure according to claim 6, characterized in that, The length of the guide surface in the concave direction is less than the concave depth of the water receiving cavity.

8. The fan coil unit water connection structure according to any one of claims 1-7, characterized in that, It also includes a second water receiving tray located outside the outer shell, one end of the second water receiving tray being located inside the water receiving cavity and disposed at the water outlet communicating with the water receiving cavity, and the other end of the second water receiving tray extending away from the outer shell to the outside of the water receiving cavity.

9. A fan coil unit assembly, characterized in that, The device includes a fan coil unit and a fan coil unit water receiving structure as described in any one of claims 1-8. The fan coil unit is installed in the receiving cavity, the first water receiving tray is located below the fan coil unit, and the end of the fan coil unit forms a coil joint. The coil joint passes through the clearance hole and extends into the water receiving cavity.

10. An air conditioning system, characterized in that, Includes the fan coil unit assembly as described in claim 9.

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