Assembly type hidden fan coil and air pipe connecting structure

Through the connection structure between the prefabricated fan coil and the air duct, the problems of inconvenient disassembly and maintenance of the air duct are solved, and the effect of convenient installation, flexible disassembly and noise reduction is achieved.

CN223090798UActive Publication Date: 2025-07-11THE THIRD CONSTR ENG CO LTD OF CHINA CONSTR SECOND ENG BUREAU +1
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Patent Information

Application Number
CN202422355353.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-09-26
Publication Date
2025-07-11
Estimated Expiration
2034-09-26

AI Technical Summary

Technical Problem

The installation and disassembly of existing air ducts is inconvenient, and the ceiling needs to be removed during maintenance to affect the aesthetics.

Method used

It adopts a prefabricated structure, including fixed components and functional components. The functional components are installed in the reserved position of the ceiling through the fixed components, and a silence cotton and a filter are set. The return air outlet and the air supply outlet are connected to the return air duct and the air supply duct respectively. The pipeline is connected through a fire-proof and thermal insulation soft connection. The elbow design reduces vibration and noise. The silence cotton is suitable for the ceiling and is hidden in the ceiling.

Benefits of technology

It realizes convenient installation and disassembly, is easy to inspect and repair, does not affect the aesthetics of the building, reduces operating noise and vibration, and has high installation flexibility.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223090798U_ABST
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Abstract

The utility model discloses an assembly type hidden fan coil and air pipe connecting structure which comprises a fixing assembly and a functional assembly, and the functional assembly is installed at a reserved position of a suspended ceiling through the fixing assembly. The fixing assembly comprises silencing cotton and a bottom plate, an air return opening and an air supply opening are formed in the bottom plate, and the silencing cotton is arranged above the bottom plate; the functional assembly comprises a fan coil, a belt air return box, an air return pipeline and an air supply pipeline, the fan coil is arranged in the belt air return box, one end of the belt air return box is communicated with the air return pipeline, the other end of the belt air return box is communicated with the air supply pipeline, and one end of the air return pipeline penetrates out of the silencing cotton to be connected to the air return opening. And one end of an air supply pipeline penetrates out of the silencing cotton and is connected to the air supply outlet. The structure is convenient to disassemble and assemble, flexible in arrangement and high in overall attractiveness.
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Description

Technical Field

[0001] The utility model relates to the technical field of building ventilation, and particularly relates to a connecting structure between a prefabricated concealed fan coil unit and an air duct. Background Art

[0002] An air duct machine is a type of air conditioner. It has the advantages of saving space, leaving no sanitation dead corners, and only requiring a partial ceiling. Since the air duct machine is embedded, only the air outlets (including the return air outlet and the supply air outlet) are exposed outside, which is more beautiful than wall-mounted air conditioners and cabinet air conditioners. However, in the prior art, the installation of the air duct machine has limitations. If a failure occurs, it is necessary to disassemble the ceiling for inspection and repair, which is a large workload and the secondary repair after the ceiling is disassembled will affect the overall aesthetics of the ceiling. Content of the Utility Model

[0003] The purpose of the utility model is to provide a connecting structure between a prefabricated concealed fan coil unit and an air duct, which solves the problem of inconvenient disassembly and assembly of the air duct machine.

[0004] To achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A connecting structure between a prefabricated concealed fan coil unit and an air duct includes a fixing component and a functional component. The functional component is installed at the reserved position of the ceiling through the fixing component; the fixing component includes sound-absorbing cotton and a bottom plate. An air return opening and an air supply opening are formed on the bottom plate, and the sound-absorbing cotton is arranged above the bottom plate; the functional component includes a fan coil unit, a return air box, a return air pipeline and a supply air pipeline. The fan coil unit is arranged in the return air box. One end of the return air box is communicated with the return air pipeline, and the other end is communicated with the supply air pipeline. One end of the return air pipeline passes through the sound-absorbing cotton and is connected to the air return opening, and one end of the supply air pipeline passes through the sound-absorbing cotton and is connected to the air supply opening.

[0006] Preferably, filters are arranged at both the air return opening and the air supply opening.

[0007] Preferably, the return air pipeline includes a T-shaped connector and a return air duct. The T-shaped connector is communicated with the return air box, and the return air duct is connected to the bottom end of the T-shaped connector through a first fireproof and heat-insulating flexible pipe.

[0008] Preferably, the bottom end of the return air duct passes through the sound-absorbing cotton and is connected to the air return opening.

[0009] Preferably, the supply air pipeline includes an air outlet duct and an elbow. The air outlet duct is communicated with the return air box through a second fireproof and heat-insulating flexible pipe. The elbow is connected to one end of the air outlet duct, and the bottom end of the elbow passes through the sound-absorbing cotton and is connected to the air supply opening.

[0010] Preferably, the elbow is integrally 90° and the corner is transitioned by a rounded corner.

[0011] Preferably, the sound-absorbing cotton is adapted to the reserved position of the suspended ceiling.

[0012] Preferably, the bottom plate is fixedly connected to the suspended ceiling through fasteners.

[0013] In the present utility model, this structure is assembled and installed at the reserved position of the suspended ceiling through fasteners, which is not only convenient for installation but also for disassembly and maintenance. Moreover, multiple such structures can be arranged inside the building, and the installation and layout are flexible without affecting the overall aesthetics. This structure includes sound-absorbing cotton and elbows, both of which can effectively reduce the vibration and noise generated during the operation of the functional components and have the value of popularization. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0015] Figure 2 is a schematic diagram of the structure of the present utility model installed at the reserved position of the suspended ceiling;

[0016] In the figure: 1, fixing component; 2, functional component; 3, suspended ceiling; 10, sound-absorbing cotton; 11, bottom plate; 12, filter screen; 21, return air box with blower; 22, return air duct; 23, supply air duct; 110, return air inlet; 111, supply air outlet; 220, T-shaped connector; 221, return air pipe; 222, first fireproof and heat-insulating flexible pipe; 230, outlet pipe; 231, elbow; 232, second fireproof and heat-insulating flexible pipe. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0017] The following will further describe the present utility model with reference to the accompanying drawings:

[0018] As Figure 1 and Figure 2 shown, an assembled concealed fan coil unit and air duct connection structure includes a fixing component 1 and a functional component 2, and the functional component 2 is installed at the reserved position of the suspended ceiling 3 through the fixing component 1.

[0019] The fixing component 1 includes a sound-absorbing cotton 10 and a bottom plate 11. A return air inlet 110 and a supply air outlet 111 are formed on the bottom plate 11, and the sound-absorbing cotton 10 is arranged above the bottom plate 11.

[0020] The functional component 2 includes a fan coil unit, a return air box with blower 21, a return air duct 22, and a supply air duct 23. The fan coil unit is arranged inside the return air box with blower 21. One end of the return air box with blower 21 is communicated with the return air duct 22, and the other end is communicated with the supply air duct 23. One end of the return air duct 22 passes through the sound-absorbing cotton 10 and is connected to the return air inlet 110, and one end of the supply air duct 23 passes through the sound-absorbing cotton 10 and is connected to the supply air outlet 111. Filter screens 12 are arranged at both the return air inlet 110 and the supply air outlet 111.

[0021] The return air duct 22 includes a T-shaped connector 220 and a return air pipe 221. The T-shaped connector 220 is communicated with the return air box 21, and the return air pipe 221 is connected to the bottom end of the T-shaped connector 220 through a first fireproof and heat-insulating flexible pipe 222. The bottom end of the return air pipe 221 passes through the sound-absorbing cotton 10 and is connected to the return air outlet 110.

[0022] The supply air duct 23 includes an air outlet pipe 230 and an elbow 231. The air outlet pipe 230 is communicated with the return air box 21 through a second fireproof and heat-insulating flexible pipe 232. The elbow 231 is connected to one end of the air outlet pipe 230, and the bottom end of the elbow 231 passes through the sound-absorbing cotton 10 and is connected to the supply air outlet 111. In this example, the elbow 231 is integrally 90°, and the corner is transitioned by a rounded corner to slow down the impact of the air flow generated by the fan coil unit on the supply air duct 23, reducing the vibration and noise of the entire structure.

[0023] The sound-absorbing cotton 10 is adapted to the reserved position of the ceiling 3, so that the fixing assembly 1 and the ceiling 3 form a sealed space, which can not only hide the functional assembly 2 at the top of the ceiling 3 without affecting the aesthetics of the building interior, but also effectively reduce the noise impact. The bottom plate 11 is fixedly connected to the ceiling 3 through fasteners, which is convenient for installation and disassembly and easy for maintenance.

[0024] The above embodiments are only several descriptions of the concept and implementation of the present invention, and are not intended to limit it. Under the concept of the present invention, the technical solutions without substantial transformation are still within the protection scope.

Claims

1. An assembled concealed fan coil unit and air duct connection structure, characterized in that: It includes a fixing component (1) and a functional component (2). The functional component (2) is installed at a reserved position on the ceiling (3) through the fixing component (1). The fixing component (1) includes a sound-absorbing cotton (10) and a bottom plate (11). An air return opening (110) and an air supply opening (111) are formed on the bottom plate (11). The sound-absorbing cotton (10) is arranged above the bottom plate (11). The functional component (2) includes a fan coil unit, a return air box (21), a return air pipeline (22) and an air supply pipeline (23). The fan coil unit is arranged in the return air box (21). One end of the return air box (21) is communicated with the return air pipeline (22), and the other end is communicated with the air supply pipeline (23). One end of the return air pipeline (22) passes through the sound-absorbing cotton (10) and is connected to the air return opening (110), and one end of the air supply pipeline (23) passes through the sound-absorbing cotton (10) and is connected to the air supply opening (111).

2. The connecting structure between the assembled concealed fan coil unit and the air duct according to claim 1, characterized in that: Filter nets (12) are arranged at both the air return opening (110) and the air supply opening (111).

3. The connection structure between the prefabricated concealed fan coil unit and the air duct according to claim 1, characterized in that: The return air pipeline (22) includes a T-shaped connector (220) and a return air duct (221). The T-shaped connector (220) is communicated with the return air box (21), and the return air duct (221) is connected to the bottom end of the T-shaped connector (220) through a first fireproof and heat-insulating flexible pipe (222).

4. The connecting structure between the assembled concealed fan coil unit and the air duct according to claim 3, characterized in that: The bottom end of the return air duct (221) passes through the sound-absorbing cotton (10) and is connected to the air return opening (110).

5. The connection structure between the assembled concealed fan coil unit and the air duct according to claim 1, characterized in that: The air supply pipeline (23) includes an air outlet duct (230) and an elbow (231). The air outlet duct (230) is communicated with the return air box (21) through a second fireproof and heat-insulating flexible pipe (232). The elbow (231) is connected to one end of the air outlet duct (230), and the bottom end of the elbow (231) passes through the sound-absorbing cotton (10) and is connected to the air supply opening (111).

6. The connection structure between the assembled concealed fan coil unit and the air duct according to claim 5, characterized in that: The elbow (231) is integrally 90°, and the corner is transitioned by a rounded corner.

7. The connection structure between the assembled concealed fan coil unit and the air duct according to claim 1, characterized in that: The sound-absorbing cotton (10) is adapted to the reserved position on the ceiling (3).

8. The prefabricated concealed fan coil unit and air duct connection structure according to claim 7, characterized in that: The bottom plate (11) is fixedly connected to the ceiling (3) through fasteners.