Housing structure of fresh air machine

By designing a detachable fresh air unit casing structure, the problem of inconvenient maintenance was solved, achieving convenient maintenance and improved quietness.

CN224381747UActive Publication Date: 2026-06-19ZHEJIANG TUOLI ENVIRONMENTAL TECH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHEJIANG TUOLI ENVIRONMENTAL TECH CO LTD
Filing Date
2025-05-28
Publication Date
2026-06-19

AI Technical Summary

Technical Problem

The fixed location of the maintenance port of the existing fresh air unit results in some components being located far away or blocked by objects, causing inconvenience for maintenance.

Method used

Design a housing structure for a fresh air unit, employing a rectangular frame and side panel assembly. Each side is detachable via stepped openings and clamping components. Sound-absorbing cotton and sealing strips are combined to enhance quietness, and support members are used to install components and increase strength.

Benefits of technology

This design allows for easy disassembly and assembly of the fresh air unit from all sides, improving maintenance convenience while enhancing the strength of the casing and the quietness of operation.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

This utility model discloses a housing structure for a fresh air unit, including a rectangular frame, side panel assemblies, and a clamping assembly. Each side of the rectangular frame has a stepped opening, and each side panel assembly mates with and covers the corresponding stepped opening. The clamping assembly connects to the rectangular frame to press and fix the side panel assemblies installed at the stepped openings. The rectangular frame is provided with several support members for mounting components. This utility model provides a housing structure for a fresh air unit that allows for easy disassembly and assembly from all sides, facilitating installation and maintenance.
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Description

Technical Field

[0001] This utility model relates to the shell structure of a fresh air ventilator and belongs to the field of fresh air ventilator technology. Background Technology

[0002] A fresh air system is an effective air purification device that circulates indoor air. On the one hand, it expels polluted indoor air to the outside, and on the other hand, it introduces fresh outdoor air into the room after sterilization, disinfection, and filtration, ensuring the freshness of the indoor air. To facilitate the maintenance of the fresh air system, an inspection port is provided on the casing, and a corresponding inspection door is installed on the inspection port. By opening the inspection door, the internal components can be inspected. However, since the location of the inspection port is fixed, and some components may be located far from the inspection port or there may be objects blocking the way, maintenance may be inconvenient. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a shell structure for a fresh air fan, which can be easily disassembled and assembled on all sides, making it convenient for installation and maintenance, and can overcome the shortcomings of the prior art.

[0004] The technical solution of this utility model is: a shell structure of a fresh air unit, including a rectangular frame, side plate assemblies and a pressing assembly. Each side of the rectangular frame has a stepped opening. Each side plate assembly is fitted with the corresponding stepped opening. The pressing assembly is connected to the rectangular frame to press and fix the side plate assembly installed at the stepped opening. The rectangular frame is provided with several support members for installing elements.

[0005] Furthermore, the side panel assembly includes an outer shell, an inner mesh panel, and sound-absorbing cotton disposed between the outer shell and the mesh panel.

[0006] Furthermore, the side panel assembly has outwardly folded horizontal edges on both sides. When the side panel assembly is closed inside the stepped opening, the horizontal folds are in contact with the bottom surface of the stepped opening. A gap is formed between the two side walls of the side panel assembly and the inner side wall of the stepped opening. The pressing component is located in the gap to press the two sides of the side panel assembly tightly.

[0007] Furthermore, the stepped opening and the top of the support member are provided with a sealing strip that fits against the inside of the side plate assembly.

[0008] Furthermore, several of the aforementioned side panel assemblies are provided with hanging parts.

[0009] Furthermore, the side panel assembly and the clamping assembly do not protrude beyond the stepped opening.

[0010] By implementing this utility model, the components are installed on the support, and each side plate assembly is covered at the corresponding stepped opening. The clamping assembly is connected to the rectangular frame to clamp and fix the side plate assembly. During maintenance, one or more side plate assemblies can be removed as needed to facilitate the maintenance of each component installed on the support. Currently, the support supports the rectangular frame, giving it better strength. Attached Figure Description

[0011] Figure 1 This is a three-dimensional view of the present invention;

[0012] Figure 2 This is a schematic diagram of the installation of this utility model;

[0013] Figure 3 This is a schematic diagram of the side panel assembly of this utility model.

[0014] The figure shows: 1. Rectangular frame; 2. Compression assembly; 3. Side plate assembly; 5. Elastic element; 6. Connector; 7. Support element; 8. Outer shell; 9. Mesh plate; 10. Horizontal folded edge; 11. Bottom surface; 12. Sealing strip; 13. Hanger. Detailed Implementation

[0015] Embodiments of this utility model: such as Figures 1 to 3 As shown, a shell structure for a fresh air unit includes a rectangular frame 1, side panel assemblies 3, and a clamping assembly 2. The rectangular frame 1 has stepped openings on each side, namely the top, bottom, left, right, front, and back. There are also six side panel assemblies 3, which are fitted to the corresponding stepped openings. The rectangular frame 1 is provided with several support members 7. The support members 7 are used for the installation of various components such as the fan, filter element, and sensor device, and also increase the strength of the rectangular frame. Each side panel assembly 3 is fitted to the corresponding stepped opening. The clamping assembly 2 is connected to the rectangular frame 1 to clamp and fix the side panel assembly 3 to achieve installation. During maintenance, one or more side panel assemblies 3 can be removed as needed to facilitate the maintenance of the internal components.

[0016] As a preferred embodiment, the side panel assembly includes an outer shell 8, an inner mesh plate 9, and sound-absorbing cotton disposed between the outer shell 8 and the mesh plate 9. The outer shell 8 is made of galvanized steel sheet. Each side panel assembly adopts a sound-absorbing structure combining the mesh plate 9 and the sound-absorbing cotton, which can effectively absorb the noise generated during the operation of the fan and ensure the quiet operation of the fresh air fan.

[0017] As a preferred embodiment, the side panel assembly 3 has outwardly folded horizontal flanges 10 on both sides. When the side panel assembly 3 is closed inside the step opening, the horizontal flanges 10 are in contact with the bottom surface 11 of the step opening. A gap is formed between the side walls of the side panel assembly 3 and the inner side wall of the step opening. The pressing assembly 2 includes an elastic element 5 and a connecting element 6. The connecting element 6 is a fastener such as a bolt. The elastic element 5 is a block made of elastic materials such as rubber and silicone. The elastic element 5 is installed at both ends in the gap. The two sides of the elastic element 5 are in contact with the inner side wall of the step opening and the side wall of the side panel assembly 3, respectively. The connecting element 6 passes through the elastic element 5 and connects to the bottom surface 11 of the step opening, so that the elastic element 5 presses the horizontal flanges 10 to prevent the side panel assembly 3 from falling out of the step opening. At the same time, the elastic elements 5 on both sides of the side panel assembly 3 press the side panel assembly 3 left and right to prevent the side panel assembly 3 from shaking. In addition, the elastic element 5 is made of elastic material and has a shock absorption function, which greatly blocks the transmission of vibration to the side panel assembly 3, further improving the quietness of the fresh air unit operation.

[0018] As a preferred option, the top of the stepped opening and the support 7 is provided with a sealing strip 12 that fits against the inner side of the side plate assembly 3, which improves the sealing of the connection and reduces vibration transmission, further improving the quietness of the fresh air unit operation.

[0019] As a preferred option, the front and rear side panel assemblies 3 are equipped with hangers 13 to facilitate the installation of the fresh air unit.

[0020] As a preferred embodiment, the side panel assembly 3 and the clamping assembly do not protrude outside the stepped opening, that is, they are outside the air inlet and outlet ducts of the two side panel assemblies. The thickness of the side panel assembly 3 and the clamping assembly 2 is not greater than the depth of the stepped opening. It is best if the outer surface of the side panel assembly 3 is flush with the outer surface of the rectangular frame 1 when it is installed inside the stepped opening, so as to have better flatness and facilitate stable placement and transportation.

Claims

1. A housing structure for a fresh air unit, characterized in that: It includes a rectangular frame, side panel assemblies and a clamping assembly. Each side of the rectangular frame has a stepped opening. Each side panel assembly is fitted with the corresponding stepped opening to cover it. The clamping assembly is connected to the rectangular frame to clamp and fix the side panel assembly installed at the stepped opening. The rectangular frame is provided with several support members for installing elements.

2. The housing structure of the fresh air unit according to claim 1, characterized in that: The side panel assembly includes an outer shell, an inner mesh panel, and sound-absorbing cotton disposed between the outer shell and the mesh panel.

3. The housing structure of the fresh air unit according to claim 1 or 2, characterized in that: The side panel assembly has outwardly folded horizontal edges on both sides. When the side panel assembly is closed inside the stepped opening, the horizontal folds are in contact with the bottom surface of the stepped opening. A gap is formed between the two side walls of the side panel assembly and the inner side wall of the stepped opening. The pressing component is located in the gap to press the two sides of the side panel assembly tightly.

4. The housing structure of the fresh air unit according to claim 3, characterized in that: The stepped opening and the top of the support are provided with a sealing strip that fits against the inside of the side plate assembly.

5. The housing structure of the fresh air unit according to claim 1, 2, or 4, characterized in that: Some of the side panel assemblies are provided with hanging parts.

6. The housing structure of the fresh air unit according to claim 3, characterized in that: The side plate assembly and the clamping assembly do not protrude outside the stepped opening.