Ceiling bidirectional flow fresh air fan with detachable fan module

By incorporating inspection ports and detachable fan modules into the fresh air unit, the problems of cumbersome maintenance and ceiling damage associated with traditional fresh air units are solved, achieving convenient maintenance and cost reduction.

CN224381709UActive Publication Date: 2026-06-19NINGBO RUNNER INDAL CORP

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NINGBO RUNNER INDAL CORP
Filing Date
2025-04-28
Publication Date
2026-06-19

AI Technical Summary

Technical Problem

The maintenance process of existing bidirectional flow ceiling-mounted fresh air units is cumbersome and can easily damage the ceiling structure, increasing maintenance costs and user risks.

Method used

A ceiling-mounted bidirectional airflow fresh air unit with a detachable fan module is designed. By setting an inspection port on the front side of the casing and adopting a detachable fan module installation method, combined with bolts, plugs and flexible parts, convenient maintenance can be achieved while avoiding damage to the ceiling structure.

Benefits of technology

It improves maintenance efficiency, reduces the risk of damage to the ceiling structure, reduces noise, and lowers the overall cost of the machine.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224381709U_ABST
    Figure CN224381709U_ABST
Patent Text Reader

Abstract

This utility model discloses a ceiling-mounted bidirectional flow fresh air fan with detachable fan modules, including a housing. One side of the housing has a fresh air outlet and an exhaust air inlet, and the other side has an exhaust air outlet and a fresh air inlet. Fan modules are detachably installed inside the housing at both the fresh air outlet and the exhaust air outlet. The fan module also includes an inspection door. An inspection port is located on the front side of the housing, below the two fan modules. One end of the inspection door is rotatably connected to the housing, and the other end is engaged with the housing, for opening or closing the inspection port. This utility model, through the installation position of the fan modules and the installation method between them and the housing, facilitates the removal of the fan modules by maintenance personnel through the inspection port, improving maintenance efficiency while avoiding irreversible damage to the ceiling structure.
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Description

Technical Field

[0001] This utility model relates to the technical field of fresh air systems, and in particular to a ceiling-mounted bidirectional flow fresh air fan with a detachable fan module. Background Technology

[0002] Traditional bidirectional flow ceiling-mounted fresh air systems achieve indoor and outdoor air exchange through air supply and exhaust systems to improve indoor air quality.

[0003] However, in the existing technology, the maintenance of wind turbine modules usually requires disassembling the entire unit or the top cover, which makes the operation cumbersome and time-consuming. Moreover, the disassembly process can easily cause irreversible damage to the user's ceiling structure, increasing maintenance costs and user risks. Utility Model Content

[0004] In response to the aforementioned problems in the maintenance of existing fresh air units, the aim is to provide a ceiling-mounted bidirectional flow fresh air unit with a detachable fan module that facilitates maintenance and avoids damage to the ceiling structure.

[0005] The specific technical solution is as follows:

[0006] A ceiling-mounted bidirectional flow fresh air unit with a detachable fan module includes a housing. One side of the housing has a fresh air outlet and an exhaust air inlet, and the other side has an exhaust air outlet and a fresh air inlet. A fan module is detachably installed inside the housing at both the fresh air outlet and the exhaust air outlet. The unit also includes:

[0007] The maintenance door has an access port on the front side of the housing, which is located below the two fan modules. One end of the maintenance door is rotatably connected to the housing, and the other end is snapped into the housing, for opening or closing the access port.

[0008] Each of the wind turbine modules is detachably connected to the housing on one side near the inspection port and plugged into the housing on the other side.

[0009] As a further improvement and optimization of this solution, the other end of the inspection door is connected by a latch.

[0010] As a further improvement and optimization of this solution, the side of the wind turbine module closest to the inspection port is connected to the housing by bolts.

[0011] As a further improvement and optimization of this solution, the fan module has a fixed foot on one side, and the inner wall of the housing has a fan bracket. The fixed foot and the fan bracket are connected by bolts.

[0012] As a further improvement and optimization of this solution, the other side of the wind turbine module has a pin, the housing has a fastening frame, the fastening frame has a flexible component, and the pin is inserted into the flexible component.

[0013] As a further improvement and optimization of this solution, an exchange core is installed inside the housing, and the housing forms a fresh air channel connecting the fresh air inlet and the fresh air outlet, and an exhaust air channel connecting the exhaust air inlet and the exhaust air outlet. Both the fresh air channel and the exhaust air channel pass through the exchange core, and the fan module is installed at the end of both the fresh air channel and the exhaust air channel.

[0014] As a further improvement and optimization of this solution, the thickness of the wind turbine module is less than its length and width.

[0015] As a further improvement and optimization of this solution, the fan module is arranged vertically.

[0016] As a further improvement and optimization of this solution, each of the aforementioned wind turbine modules is a dual-inlet impeller wind turbine module.

[0017] As a further improvement and optimization of this solution, one end of the inspection door is rotatably connected to the housing via a hinge.

[0018] The positive effects of the above technical solution compared with the existing technology are:

[0019] (1) By setting the installation position of the fan module and the installation method between it and the housing, the maintenance personnel can easily disassemble the fan module through the maintenance port, which improves maintenance efficiency and avoids irreversible damage to the ceiling structure.

[0020] (2) In this utility model, the fan module is vertically arranged. On the one hand, the air duct has no bends or changes in direction from the fresh air and exhaust air inlets to the exchange core and then to the fan module. This air duct allows for smoother airflow, which helps reduce the noise of the entire machine and improves its energy efficiency. On the other hand, the fan module stands vertically inside the housing, which effectively utilizes the space between the fan module and the top of the housing compared to a horizontally placed fan module, thus reducing the space occupied by the fan module inside the housing. This reduces the overall size of the machine and lowers the machine cost. Attached Figure Description

[0021] Figure 1 This is a structural schematic diagram of a ceiling-mounted bidirectional flow fresh air unit with a detachable fan module according to this utility model;

[0022] Figure 2 This is a schematic diagram of the internal structure of a ceiling-mounted bidirectional flow fresh air unit with a detachable fan module according to this utility model;

[0023] Figure 3 This is an enlarged schematic diagram of point A of a ceiling-mounted bidirectional flow fresh air unit with a detachable fan module according to this utility model;

[0024] Figure 4 This is a schematic diagram of the internal structure of a ceiling-mounted bidirectional flow fresh air unit with a detachable fan module according to this utility model;

[0025] Figure 5 This is an enlarged schematic diagram of section B of a ceiling-mounted bidirectional flow fresh air unit with a detachable fan module according to this utility model;

[0026] In the attached diagram: 1. Housing; 2. Inspection door; 3. Buckle; 4. Exchange core; 5. Fan module; 6. Fastening frame; 7. Flexible component; 8. Pin; 9. Fan bracket; 10. Fixed foot; 11. Exhaust outlet; 12. Fresh air outlet; 13. Fresh air inlet; 14. Exhaust inlet; 15. Inspection port. Detailed Implementation

[0027] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0028] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0029] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0030] Figure 1 This is a structural schematic diagram of a ceiling-mounted bidirectional flow fresh air unit with a detachable fan module, according to this utility model. Figure 2 This is a schematic diagram of the internal structure of a ceiling-mounted bidirectional flow fresh air unit with a detachable fan module, according to this utility model. Figure 3 This is an enlarged schematic diagram of point A of a ceiling-mounted bidirectional flow fresh air unit with a detachable fan module according to this utility model. Figure 4 This is a schematic diagram of the internal structure of a ceiling-mounted bidirectional flow fresh air unit with a detachable fan module, according to this utility model. Figure 5 This is an enlarged schematic diagram of point B of a ceiling-mounted bidirectional flow fresh air unit with a detachable fan module according to this utility model. Figure 1-5 The illustration shows a preferred embodiment of a ceiling-mounted bidirectional airflow fresh air unit with a detachable fan module 5. The unit includes a housing 1, with a fresh air outlet 1 and an exhaust inlet 14 on one side and an exhaust outlet 11 and a fresh air inlet 13 on the other side. Fan modules 5 are detachably installed inside the housing 1 at both the fresh air outlet 12 and the exhaust outlet 11. The unit also includes an inspection door 2. An inspection port 15 is located on the front side of the housing 1, below the two fan modules 5. One end of the inspection door 2 is rotatably connected to the housing 1, and the other end is snapped into the housing 1, for opening or closing the inspection port 15. Each fan module 5 is detachably connected to the housing 1 on one side near the inspection port 15, and plugged into the housing 1 on the other side.

[0031] In this embodiment, the two fan modules 5 are installed at the fresh air outlet 12 and the exhaust air outlet 11 respectively. When the fan module 5 needs to be disassembled and repaired, the maintenance personnel can disassemble the side of the fan module 5 near the maintenance port 15 by opening the maintenance door 2 and then pulling down the fan module 5 after disassembly.

[0032] In this embodiment, the installation position of the fan module 5 and the installation method between it and the housing 1 make it easy for maintenance personnel to disassemble the fan module 5 through the maintenance port 15, thereby improving maintenance efficiency and avoiding irreversible damage to the ceiling structure.

[0033] Furthermore, as a preferred embodiment, in order to facilitate opening the access door 2, the other end of the access door 2 is connected by a latch 3.

[0034] Furthermore, as a preferred embodiment, the side of the fan module 5 closest to the inspection port 15 is bolted to the housing 1, which improves installation stability and facilitates disassembly and assembly.

[0035] Furthermore, as a preferred embodiment, the fan module 5 has a fixing foot 10 on one side, and the inner wall of the housing 1 has a fan bracket 9, with the fixing foot 10 and the fan bracket 9 connected by bolts.

[0036] Furthermore, as a preferred embodiment, the other side of the fan module 5 has a pin 8, the housing 1 has a fastening frame 6, the fastening frame 6 has a flexible element 7, and the pin 8 is inserted into the flexible element 7.

[0037] In this embodiment, the fan module 5 is inserted into the flexible component 7 via the pin 8 to achieve a plug-in fit with the housing 1. The use of the flexible component 7 can reduce the vibration and amplitude transmitted from the fan module 5 to the housing 1, thereby reducing abnormal noise and reducing the vibration of the housing.

[0038] Preferably, the flexible component 7 can be a polyurethane elastomer, silicone rubber, polyurethane rubber, etc.

[0039] Even better, the fastener 6 has a mounting opening, the flexible element 7 is installed in the mounting opening, and the flexible element 7 has a slot, with the pin 8 engaging with the slot.

[0040] Furthermore, in a preferred embodiment, an exchange core 4 is installed inside the housing 1. The housing 1 forms a fresh air duct connecting the fresh air inlet 13 and the fresh air outlet 12, and an exhaust air duct connecting the exhaust air inlet 14 and the exhaust air outlet 11. Both the fresh air duct and the exhaust air duct are connected by the exchange core 4, and a fan module 5 is installed at the end of both the fresh air duct and the exhaust air duct. In this application, the function of the exchange core 4 is to realize the energy transfer between the fresh air and the exhaust air. It is an existing mature component, and its specific structure and principle will not be described in detail here.

[0041] Furthermore, as a preferred embodiment, the thickness of the fan module 5 is less than its length and width.

[0042] Furthermore, as a preferred embodiment, the fan module 5 is vertically arranged. On the one hand, the air duct from the fresh air and exhaust air inlet 14 to the exchange core 4 and then to the fan module 5 has no bends or changes in direction. This air duct allows for smoother airflow, which helps reduce the noise of the entire machine and improves its energy efficiency. On the other hand, the fan module 5 stands vertically inside the housing 1, which effectively utilizes the space between the fan module 5 and the top of the housing 1 compared to a horizontally placed fan module 5, reducing the space occupied by the fan module 5 within the housing 1. This, in turn, reduces the overall size of the machine and lowers the machine cost.

[0043] Specifically, in some embodiments, the fan module 5 can also be set horizontally.

[0044] Furthermore, as a preferred embodiment, each fan module 5 is a dual-inlet impeller fan module 5, although the fan module 5 can also be a single-inlet impeller fan module 5.

[0045] Furthermore, as a preferred embodiment, one end of the access door 2 is rotatably connected to the housing 1 via a hinge.

[0046] The above description is only a preferred embodiment of the present utility model and does not limit the implementation method and protection scope of the present utility model. Those skilled in the art should realize that all solutions obtained by equivalent substitutions and obvious changes made based on the description and illustrations of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A two-way flow fresh air fan of a detachable fan module of a suspended ceiling, comprising a shell, one side of the shell having a fresh air outlet and an exhaust air inlet, the other side of the shell having an exhaust air outlet and a fresh air inlet, characterized in that, A fan module is detachably installed inside the housing and located at both the fresh air outlet and the exhaust air outlet, and the housing also includes: The maintenance door has an access port on the front side of the housing, which is located below the two fan modules. One end of the maintenance door is rotatably connected to the housing, and the other end is snapped into the housing, for opening or closing the access port. Each of the wind turbine modules is detachably connected to the housing on one side near the inspection port and plugged into the housing on the other side.

2. The ceiling-mounted bidirectional flow fresh air system with a detachable fan module according to claim 1, characterized in that, The other end of the inspection door is connected by a latch.

3. The ceiling-mounted bidirectional flow fresh air system with a detachable fan module according to claim 1, characterized in that, The side of the wind turbine module closest to the inspection port is bolted to the housing.

4. The ceiling-mounted bidirectional flow fresh air system with a detachable fan module according to claim 3, characterized in that, The fan module has a fixed foot on one side, and the inner wall of the housing has a fan bracket. The fixed foot and the fan bracket are connected by bolts.

5. The ceiling-mounted bidirectional flow fresh air system with a detachable fan module according to claim 1, characterized in that, The other side of the fan module has a pin, the housing has a fastening frame, the fastening frame has a flexible element, and the pin is inserted into the flexible element.

6. The ceiling-mounted bidirectional flow fresh air system with a detachable fan module according to claim 1, characterized in that, An exchange core is installed inside the housing. The housing forms a fresh air channel connecting the fresh air inlet and the fresh air outlet, and an exhaust air channel connecting the exhaust air inlet and the exhaust air outlet. Both the fresh air channel and the exhaust air channel pass through the exchange core. The fan module is installed at the end of both the fresh air channel and the exhaust air channel.

7. The ceiling-mounted bidirectional flow fresh air fan with a detachable fan module according to claim 6, characterized in that, The fan module is arranged vertically.

8. The ceiling-mounted bidirectional flow fresh air system with a detachable fan module according to claim 1, characterized in that, Each of the aforementioned fan modules is a dual-inlet impeller fan module.

9. The ceiling-mounted bidirectional flow fresh air system with a detachable fan module according to claim 1, characterized in that, One end of the inspection door is rotatably connected to the housing via a hinge.