A modular quick-release filter structure for an FFU (Fan Filter Unit)

By adopting a modular quick-release filter structure and using a combination design of main outer frame, pins and springs, the problem of cumbersome filter installation and resource waste in FFU fan filter units is solved, and quick replacement and efficient installation are achieved.

CN224432940UActive Publication Date: 2026-06-30SNYLI ENVIRONMENTAL TECH (SHANDONG) CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SNYLI ENVIRONMENTAL TECH (SHANDONG) CO LTD
Filing Date
2025-07-18
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

The existing FFU fan filter installation structure is cumbersome, the clips are prone to loosening and aging, the traditional filter is loose, and the traditional structure is difficult to modularize, resulting in wasted resources and long downtime when replacing the filter.

Method used

The system adopts a modular quick-release filter structure. Through the combination design of the main outer frame, pins, support springs and buffer springs, it realizes modular installation and quick disassembly of the filter. The filter can be quickly replaced by threaded connection and handle operation.

Benefits of technology

Modular installation of the filter screen reduces resource waste, shortens replacement time, and improves installation efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model discloses a modular quick-release filter structure for an FFU (Fan Filter Unit), relating to the technical field of FFU filter units. The modular quick-release filter structure includes an FFU fan body and a modular mechanism disposed on the top of the FFU fan body. The modular mechanism includes a main outer frame, a first filter, and a second filter. A sliding groove is disposed on the surface of the main outer frame, and a disassembly mechanism is slidably connected inside the groove. Through the modular mechanism, this utility model allows the main outer frame to be installed on the surface of the FFU fan body via threaded posts during use. The main outer frame is designed with two separate filter areas, with the first and second filters installed inside the main outer frame respectively. This achieves modular installation of the filters, which is significantly less efficient than traditional single-filter systems where partial damage necessitates replacement of the entire filter, leading to excessive resource waste.
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Description

Technical Field

[0001] This utility model relates to the technical field of FFU fan filter units, specifically a modular quick-release filter structure for an FFU fan filter unit. Background Technology

[0002] FFU (Fan Filter Unit) plays a core role in cleanroom environments with extremely high air quality requirements, such as electronics manufacturing, biomedicine, and food processing. As a key component in ensuring a clean environment, the filter needs to be replaced and maintained regularly.

[0003] Currently, most FFU (Fan Filter Unit) filter screen installation structures on the market use screw fixing or snap-fit ​​connection. Screw fixing is cumbersome, and snap-fit ​​connection is prone to aging and loosening. In addition, traditional structures are difficult to modularize, and there are problems such as resource waste and long downtime when replacing the filter screen. Therefore, it is urgent to develop a new quick-release structure. Utility Model Content

[0004] This utility model provides a modular quick-release filter structure for FFU fan filter units, which solves the problems of existing FFU fan filter unit filter installation structures that mostly use screw fixing or snap-fit ​​connection. Screw fixing is cumbersome, snap-fit ​​connection is prone to aging and loosening, and traditional structures are difficult to achieve modular design, resulting in resource waste and long downtime when replacing the filter.

[0005] This utility model provides the following technical solution: a modular quick-release filter structure for an FFU (Fan Filter Unit), including an FFU fan body, and further comprising:

[0006] A modular mechanism is installed on top of the FFU fan body, the modular mechanism including a main outer frame, a first filter screen, and a second filter screen;

[0007] A sliding groove is provided on the surface of the main outer frame, and a disassembly mechanism is slidably connected inside the sliding groove. The disassembly mechanism includes a pin, a support spring, a connecting block, and a buffer spring.

[0008] As a preferred embodiment of this utility model, the main outer frame is threadedly connected to the top of the FFU fan body, and the main outer frame is provided with a placement slot, one of the placement slots is equipped with a first filter screen, and the other placement slot is equipped with a second filter screen.

[0009] As a preferred embodiment of this utility model, the pin is slidably connected to the inside of the groove, a support spring is fixedly connected to one side of the pin, a connecting block is attached to the other side of the pin, and a buffer spring is fixedly connected to the bottom of the connecting block.

[0010] As a preferred embodiment of this utility model, the connecting block is fixedly connected to both sides of the first filter screen and the second filter screen, and the connecting block is inserted into the interior of the placement groove.

[0011] As a preferred technical solution of this utility model, the surface of the main outer frame is provided with a threaded hole, and the threaded hole is internally connected with a threaded post.

[0012] As a preferred embodiment of this utility model, a fixed cylinder is fixedly connected to one side of the support spring, and the pin is slidably connected inside the fixed cylinder.

[0013] As a preferred embodiment of this utility model, a handle is fixedly connected to the center of the surface of the pin, and an anti-slip groove is provided on the surface of the handle.

[0014] As a preferred technical solution of this utility model, threaded holes are provided on both sides of the surface of the FFU fan body, and positioning bolts are connected to the internal threads of the threaded holes.

[0015] Compared with the prior art, this utility model provides a modular quick-release filter structure for an FFU fan filter unit, which has the following advantages:

[0016] 1. The modular quick-release filter structure of this FFU fan filter unit, through the modular mechanism, allows the main outer frame to be installed on the surface of the FFU fan body via threaded posts during use. The main outer frame is designed as two separate filter areas, with the first and second filters installed inside the main outer frame respectively. This achieves the effect of modular installation of the filter. Compared with the traditional single filter, if some areas are damaged, the entire filter needs to be replaced, which would result in excessive waste of resources.

[0017] 2. The modular quick-release filter structure of this FFU fan filter unit, through the setting of the disassembly mechanism, allows for easy installation and removal of the filter by simply pulling the handles on the upper and lower sides. This pull causes the bottom pin to press against the support spring on one side, moving the pin to the appropriate position. Once the pin is in the correct position, the connecting block at the bottom of the pin loses its limit and is subjected to the reverse force provided by the buffer spring on the back, thus popping the filter out of the placement slot. This achieves the effect of quick installation and removal of the filter, improving the installation efficiency of the installers. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the modular mechanism structure of this utility model;

[0020] Figure 3This is a schematic diagram of the disassembly mechanism of this utility model;

[0021] Figure 4 This is a schematic diagram of the disassembly mechanism of this utility model.

[0022] In the diagram: 1. FFU fan body; 2. Modular mechanism; 201. Main outer frame; 202. First filter screen; 203. Second filter screen; 3. Disassembly mechanism; 301. Pin; 302. Support spring; 303. Connecting block; 304. Buffer spring; 4. Threaded column; 5. Fixing cylinder; 6. Handle; 7. Positioning bolt. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figures 1-4 This utility model discloses a modular quick-release filter structure for an FFU (Fan Filter Unit), including an FFU fan body 1, and further comprising:

[0025] A modular mechanism 2 is installed on the top of the FFU fan body 1. The modular mechanism 2 includes a main outer frame 201, a first filter screen 202, and a second filter screen 203.

[0026] A sliding groove is provided on the surface of the main outer frame 201, and a disassembly mechanism 3 is slidably connected inside the sliding groove. The disassembly mechanism 3 includes a pin 301, a support spring 302, a connecting block 303, and a buffer spring 304.

[0027] Specifically, the main outer frame 201 is threaded to the top of the FFU fan body 1. The main outer frame 201 has a placement slot inside, one of which is equipped with a first filter screen 202, and the other is equipped with a second filter screen 203.

[0028] In this embodiment, when in use, the main outer frame 201 is installed on the surface of the FFU fan body 1 via threaded posts 4, and the main outer frame 201 is designed as two separate filter areas, with the first filter 202 and the second filter 203 installed inside the main outer frame 201 respectively.

[0029] Specifically, the pin 301 is slidably connected to the inside of the slide groove, a support spring 302 is fixedly connected to one side of the pin 301, a connecting block 303 is attached to the other side of the pin 301, and a buffer spring 304 is fixedly connected to the bottom of the connecting block 303.

[0030] In this embodiment, when disassembling or assembling the filter screen, simply pull the handles 6 on both the top and bottom sides. This will cause the bottom pin 301 to press against the support spring 302 on one side. After the pin 301 moves to the appropriate position, the connecting block 303 at the bottom of the pin 301 loses its limit and is subjected to the reverse force provided by the buffer spring 304 on the back, which will pop the filter screen out of the placement slot.

[0031] Specifically, the connecting block 303 is fixedly connected to both sides of the first filter screen 202 and the second filter screen 203, and the connecting block 303 is inserted into the inside of the placement groove.

[0032] In this embodiment, the connecting block 303 is disposed on both sides of the first filter screen 202 and the second filter screen 203, and is connected to the placement slot opened inside the main outer frame 201, so that the first filter screen 202 and the second filter screen 203 can be installed inside the main outer frame 201.

[0033] Specifically, the surface of the main outer frame 201 is provided with threaded holes, and the threaded holes are internally connected to threaded posts 4.

[0034] Specifically, a fixed cylinder 5 is fixedly connected to one side of the supporting spring 302, and a pin 301 is slidably connected inside the fixed cylinder 5.

[0035] In this embodiment, the fixed cylinder 5 facilitates the support and limiting of the pin 301, allowing the pin 301 to slide inside the fixed cylinder 5.

[0036] Specifically, a handle 6 is fixedly connected to the center of the surface of the pin 301, and the surface of the handle 6 is provided with anti-slip grooves.

[0037] Specifically, threaded holes are provided on both sides of the surface of the FFU fan body 1, and positioning bolts 7 are connected to the internal threads of the threaded holes.

[0038] The working principle and usage process of this utility model are as follows: When in use, the main outer frame 201 is installed on the surface of the FFU fan body 1 through the threaded post 4, and the main outer frame 201 is designed as two separate filter areas, with the first filter 202 and the second filter 203 installed inside the main outer frame 201 respectively.

[0039] When disassembling or assembling the filter, simply pull the handles 6 on both the top and bottom sides. This will cause the bottom pin 301 to press against the support spring 302 on one side. Once the pin 301 is moved to the appropriate position, the connecting block 303 at the bottom of the pin 301 will lose its limit and will be subjected to the reverse force provided by the buffer spring 304 on the back, which will pop the filter out of the placement slot.

[0040] In summary, the modular quick-release filter structure of this FFU fan filter unit, through the modular mechanism 2, achieves the effect of modular installation of the filter. Compared with the traditional single filter, if some areas are damaged, the entire filter needs to be replaced, which would result in excessive waste of resources. Through the disassembly mechanism 3, the filter can be quickly installed and disassembled, improving the installation efficiency of installers.

[0041] It should be noted that, in this document, terms such as "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0042] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A modular quick-release filter structure for an FFU (Fan Filter Unit), comprising an FFU fan body (1), characterized in that, Also includes: A modular mechanism (2) is installed on top of the FFU fan body (1), the modular mechanism (2) including a main outer frame (201), a first filter (202) and a second filter (203); A sliding groove is provided on the surface of the main outer frame (201), and a disassembly mechanism (3) is slidably connected inside the sliding groove. The disassembly mechanism (3) includes a pin (301), a support spring (302), a connecting block (303), and a buffer spring (304).

2. The modular quick-release filter structure of an FFU fan filter unit according to claim 1, characterized in that: The main outer frame (201) is threaded to the top of the FFU fan body (1). The main outer frame (201) has a placement slot inside, one of which has a first filter screen (202) installed inside, and the other has a second filter screen (203) installed inside.

3. The modular quick-release filter structure of an FFU fan filter unit according to claim 1, characterized in that: The pin (301) is slidably connected to the inside of the groove. A support spring (302) is fixedly connected to one side of the pin (301), and a connecting block (303) is attached to the other side of the pin (301). A buffer spring (304) is fixedly connected to the bottom of the connecting block (303).

4. The modular quick-release filter structure of an FFU fan filter unit according to claim 1, characterized in that: The connecting block (303) is fixedly connected to both sides of the first filter screen (202) and the second filter screen (203), and the connecting block (303) is inserted into the inside of the placement groove.

5. The modular quick-release filter structure of an FFU fan filter unit according to claim 1, characterized in that: The surface of the main outer frame (201) is provided with threaded holes, and the threaded holes are internally connected with threaded columns (4).

6. The modular quick-release filter structure of an FFU fan filter unit according to claim 1, characterized in that: A fixed cylinder (5) is fixedly connected to one side of the support spring (302), and the pin (301) is slidably connected to the inside of the fixed cylinder (5).

7. The modular quick-release filter structure of an FFU fan filter unit according to claim 1, characterized in that: A handle (6) is fixedly connected to the center of the surface of the pin (301), and the surface of the handle (6) is provided with anti-slip grooves.

8. The modular quick-release filter structure of an FFU fan filter unit according to claim 1, characterized in that: The FFU fan body (1) has threaded holes on both sides of its surface, and the threaded holes are connected to positioning bolts (7).