Fan with detachable filter screen structure

The innovative connection structure between the frame and the dustproof frame solves the problem of cumbersome disassembly of existing fans, enabling quick disassembly and installation, reducing dust erosion, extending equipment life, and improving equipment maintenance efficiency and stability.

CN224064539UActive Publication Date: 2026-03-31SHENZHEN TOPSHARP PRECISION ELECTRONICS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-09
Publication Date
2026-03-31

AI Technical Summary

Technical Problem

The existing dust filter connection method for the fan in the chassis is cumbersome, making it difficult to quickly disassemble and install, which affects the efficiency of equipment maintenance. In addition, dust can easily enter the chassis, causing corrosion of critical components such as motors and shortening the life of the equipment.

Method used

The design incorporates a frame, dustproof frame, spring clips, inclined plate blocks, and connecting rods. Through the synergistic action of multiple sets of mounting covers and inclined plate blocks, it achieves rapid connection and separation. Combined with the synchronous deformation of the top block and connecting rods, it simplifies the disassembly process.

Benefits of technology

It enables quick disassembly and installation of the fan, reduces dust ingress, extends equipment lifespan, and improves equipment maintenance efficiency and stability.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of fans, and discloses a fan with a detachable filter screen structure, which comprises a rack and a dustproof frame, a motor is fixedly mounted in the middle in the rack, fan blades are fixedly mounted at the output end of the motor, a plurality of mounting covers are fixedly mounted on two sides of the rack, and a through groove is formed in one side in each mounting cover. An elastic piece is fixedly installed on the inner side, close to the penetrating groove, of the installation cover, an inclined face clamping block is fixedly installed on one side of the elastic piece, and an ejection block is inserted into the installation cover and close to the elastic piece and the penetrating groove. The rack and the dustproof frame are rapidly connected in a clamped mode through the multiple sets of installation covers, the elastic pieces and the slope clamping blocks, the ejector blocks are further installed in the installation covers in a penetrating mode, the two ejector blocks on the same side are connected through the ejector rods and the connecting rods, and synchronous deformation of the multiple elastic pieces can be achieved in cooperation with the connecting rods on the two sides of the rack; therefore, the elastic piece drives the inclined plane clamping block on one side to be separated from the corresponding clamping groove, rapid separation of the rack and the dustproof frame is achieved, and maintenance of the rack, the motor and the dustproof frame is facilitated.
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Description

Technical Field

[0001] This utility model relates to the field of fan technology, and in particular to a fan with a detachable filter structure. Background Technology

[0002] In today's rapidly developing field of electronic devices, chassis fans undoubtedly occupy a pivotal position. As electronic devices continue to move towards high performance and high integration, computer hosts, servers and other devices will generate a lot of heat during operation. If this heat cannot be dissipated in a timely and effective manner, it will seriously affect the performance of the device, causing the operating speed to slow down, or even causing hardware failure and shortening the life of the device. Therefore, in order to meet the ever-increasing heat dissipation requirements of electronic devices, the heat dissipation efficiency of chassis fans must be greatly improved. At the same time, their stability also faces more stringent tests under long-term high-intensity operation.

[0003] Currently, common chassis fans typically consist of a frame, motor, and other components. When dissipating heat from inside the chassis, multiple fans are needed to circulate the air inside the chassis with the external environment. This can lead to dust from the external environment entering the chassis through the intake fans. The connection between the fan frame and the dust filter frame is traditional, usually using screws or simple clips. However, disassembly and installation are cumbersome and time-consuming when maintenance is required on the frame, motor, or dust filter. Clip connections typically use unidirectional clips with beveled edges, which are easy to install but require multiple clips to be pried out of their corresponding slots using tools during disassembly. This lack of an effective synchronized separation structure often necessitates adjusting each connection individually, making the operation complex and difficult to synchronize. This is extremely inconvenient for scenarios requiring frequent equipment maintenance. Utility Model Content

[0004] The purpose of this invention is to provide a fan with a detachable filter structure, which can effectively solve the problems in the background art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A fan with a detachable filter structure includes a frame and a dustproof frame. A motor is fixedly installed in the middle of the frame, and fan blades are fixedly installed at the output end of the motor. Multiple mounting covers are fixedly installed on both sides of the frame. A through groove is opened on one side of the mounting cover. A spring piece is fixedly installed on the inner side of the mounting cover near the through groove. An inclined locking block is fixedly installed on one side of the spring piece. A top block is also inserted and installed in the mounting cover near the spring piece and the through groove. A dustproof net is fixedly installed in the dustproof frame. The frame and the dustproof frame are fixedly connected by multiple sets of mounting covers and inclined locking blocks.

[0007] As a further preferred embodiment of this utility model, pressure plates are fixedly installed on the middle of both sides of the frame. The transverse cross section of the pressure plate is L-shaped, and the pressure plate has an inclined surface on one side relative to the frame.

[0008] As a further preferred embodiment of this utility model, two slots are fixedly installed on both sides of the dustproof frame, and a dustproof mesh is set inside the dustproof frame. With its fine mesh structure, the dustproof mesh can effectively filter dust and other impurities in the direction of the fan air intake, ensuring that the air entering the fan is clean, greatly reducing the corrosion of key components such as the motor by dust, and extending the service life of the fan. At the same time, the slots on both sides of the dustproof frame can accurately align with the mounting cover. With the synergistic action of the spring clip and the inclined locking block, the connection between the frame and the dustproof frame is firmly realized, ensuring the integrity and stability of the overall structure of the fan.

[0009] As a further preferred embodiment of this utility model, a top rod is fixedly installed on one side of the top block, and one side of the top rod extends through the through groove to one side of the frame, and a connecting rod is fixedly connected between the two top rods located on the same side of the frame.

[0010] As a further preferred embodiment of this utility model, a sloping groove is provided in the middle of one side of the connecting rod. The sloping groove and the corresponding pressure plate are interlocked and connected in the fan. The top block is precisely inserted and installed inside the mounting cover. One side of the top block is firmly connected to the top rod. The two top rods on the same side are fixedly connected by a connecting rod. When it is necessary to achieve rapid separation of the frame and the dustproof frame, an operating force is applied to the connecting rod. The connecting rod moves under the force, driving the top rod forward, which in turn pushes the top block. At the same time, the pressure plates installed in the middle of both sides of the frame, with their L-shaped sloping structure, cooperate with the sloping groove on the connecting rod to quickly and synchronously squeeze multiple spring pieces, causing them to deform. The deformation of the spring pieces causes multiple sloping locking blocks to simultaneously disengage from their corresponding locking slots, thus successfully achieving rapid separation of the frame and the dustproof frame.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] In this invention, the frame and dustproof frame are quickly connected by multiple sets of mounting covers, springs, and inclined locking blocks. Top blocks are also installed inside the mounting covers. Two top blocks on the same side are connected by a top rod and a connecting rod, which, together with the connecting rods on both sides of the frame, enables the synchronous deformation of multiple springs. This causes the springs to drive the inclined locking blocks on one side to disengage from their corresponding slots, thereby achieving rapid separation of the frame and dustproof frame, which facilitates the maintenance of the frame, motor, and dustproof frame. Attached Figure Description

[0013] Figure 1 This is a front view of the main structure of this utility model;

[0014] Figure 2 This is a rear view of the main structure of this utility model;

[0015] Figure 3 This is a schematic diagram of the dustproof frame structure of this utility model;

[0016] Figure 4 This is a schematic diagram of the connection structure between the mounting cover and the spring, inclined plate, and top block of this utility model;

[0017] Figure 5 This is a schematic cross-sectional view of the connection between the pressing plate and the inclined groove of this utility model.

[0018] In the diagram: 1. Frame; 2. Dustproof frame; 3. Motor; 4. Fan blade; 5. Mounting cover; 6. Spring; 7. Angled locking block; 8. Through slot; 9. Top rod; 10. Pressure plate; 11. Dustproof net; 12. Locking slot; 13. Top block; 14. Connecting rod; 15. Angled slot. Detailed Implementation

[0019] To make the technical means, creative features, achieved objectives and effects of this utility model readily understandable, exemplary embodiments of this disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of this disclosure are shown in the drawings, it should be understood that this disclosure can be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided to enable a more thorough understanding of this disclosure and to fully convey the scope of this disclosure to those skilled in the art.

[0020] It should be noted that, unless otherwise stated, other technical or scientific terms used in this application shall have the ordinary meaning as understood by one of ordinary skill in the art to which this application pertains.

[0021] like Figures 1-5As shown, the present invention provides a fan with a detachable filter structure, including a frame 1 and a dustproof frame 2. A motor 3 is fixedly installed in the middle of the frame 1, and a fan blade 4 is fixedly installed at the output end of the motor 3. Multiple mounting covers 5 are fixedly installed on both sides of the frame 1. A through groove 8 is opened on one side of the mounting cover 5. A spring piece 6 is fixedly installed on the inside of the mounting cover 5 near the through groove 8. A slanted locking block 7 is fixedly installed on one side of the spring piece 6. A top block 13 is also inserted and installed inside the mounting cover 5 near the spring piece 6 and the through groove 8. A dustproof net 11 is fixedly installed inside the dustproof frame 2, and the frame 1 and the dustproof frame 2 are fixedly connected by multiple sets of mounting covers 5 and slanted locking blocks 7.

[0022] like Figures 1-5 As shown, pressure plates 10 are fixedly installed on the middle of both sides of the frame 1. The cross-section of the pressure plate 10 is L-shaped, and the pressure plate 10 has an inclined surface on one side relative to the frame 1. Two slots 12 are fixedly installed on both sides of the dustproof frame 2. A dustproof mesh 11 is set inside the dustproof frame 2. With its fine mesh structure, the dustproof mesh 11 can effectively filter dust and other impurities in the direction of the fan air intake, ensuring that the air entering the fan is clean, greatly reducing the corrosion of key components such as the motor 3 by dust, and extending the service life of the fan. At the same time, the dustproof frame 2 has openings on both sides. The slot 12 is designed to precisely align with the mounting cover 5. With the coordinated action of the spring piece 6 and the inclined locking block 7, the connection between the frame 1 and the dustproof frame 2 is securely achieved, ensuring the integrity and stability of the overall fan structure. A top rod 9 is fixedly installed on one side of the top block 13. One side of the top rod 9 extends through the through slot 8 to the side of the frame 1. A connecting rod 14 is fixedly connected between two top rods 9 on the same side of the frame 1. An inclined groove 15 is formed in the middle of one side of the connecting rod 14. The inclined groove 15 interlocks with the corresponding pressure plate 10. In this fan, the top block 13... Precisely inserted and installed inside the mounting cover 5, the top block 13 is firmly connected to the top rod 9 on one side, and the two top rods 9 on the same side are fixedly connected by the connecting rod 14. When it is necessary to achieve rapid separation of the frame 1 and the dustproof frame 2, an operating force is applied to the connecting rod 14. The connecting rod 14 moves under the force, driving the top rod 9 forward, which in turn pushes the top block 13. At the same time, the pressure plate 10 installed in the middle of both sides of the frame 1, with its L-shaped inclined surface structure, cooperates with the inclined groove 15 on the connecting rod 14 to quickly and synchronously squeeze multiple spring pieces 6, causing them to deform. The deformation of the spring pieces 6 causes multiple inclined locking blocks 7 to simultaneously disengage from the corresponding locking grooves 12, and finally, the rapid separation of the frame 1 and the dustproof frame 2 is successfully achieved.

[0023] It should be noted that this utility model is a fan with a detachable filter structure. Before connecting the frame 1 and the dustproof frame 2, the dustproof frame 2 can be fixed to the air inlet of the chassis with fixing screws. Then, the frame 1 can be held and aligned with the rear side of the frame 1 and the dustproof frame 2, so that the multiple mounting covers 5 on both sides of the frame 1 are inserted into one side of the frame 1. This causes the mounting covers 5 to move the inner spring pieces 6 synchronously. Then, the spring pieces 6 cause the inclined surface of the inclined plate block 7 to contact the side of the frame 1. Thus, the inclined plate block 7 is limited by the structure of the frame 1 and causes the spring pieces 6 to bend and deform towards the inside of the mounting cover 5. When the spring pieces 6 move to the side of the slot 12, the elasticity of the bent spring pieces 6 will reset the inclined plate block 7, so that the inclined plate block 7 is inserted into the slot 12. Thus, the frame 1 and the dustproof frame 2 can be quickly connected by the cooperation of multiple sets of mounting covers 5, spring pieces 6, and inclined plate blocks 7. When separating the frame 1 from the dustproof frame 2, the pressure plate 10 on one side of the frame 1 can be pinched with two fingers of one hand, so that the pressure plate 10 bends with the connection point with the frame 1 as the fulcrum. This causes the two pressure plates 10 to be squeezed in the inclined groove 15 on the corresponding side of the connecting rod 14. The inclined groove 15 then pushes the connecting rod 14 towards the dustproof frame 2. The connecting rod 14 then moves the two push rods 9 into the mounting cover 5. This causes the push rods 9 to move the push block 13 into the mounting cover 5. The external force pushes the push block 13 to move gradually within the mounting cover 5. As the push block 13 moves forward, it comes into close contact with the spring piece 6 and applies continuous pressure, causing the spring piece 6 to gradually deform. Since the spring piece 6 is fixedly connected to the inclined locking block 7, the deformation of the spring piece 6 causes the inclined locking block 7 to slowly disengage from the slot 12. The deformation actions of the four sets of spring pieces 6 and the inclined locking blocks 7 are completely synchronized, thus achieving rapid separation of the frame 1 from the dustproof frame 2.

[0024] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A fan with a detachable filter screen structure, characterized by: The utility model relates to a dustproof frame (2) and frame (1) are connected, frame (1) is including, the middle part fixed mounting has motor (3) in frame (1), the output of motor (3) is fixedly installed with fan blade (4), frame (1) both sides are fixedly installed with a plurality of installation cover (5), the inside one side of installation cover (5) is opened and is provided with through slot (8), the inside fixed mounting of installation cover (5) is close to through slot (8) piece (6), installation cover (5) inside close to piece (6) with through slot (8) still intercalate the installation of top block (13), and frame (1) with dustproof frame (2) are fixedly connected through a plurality of installation cover (5) with inclined surface clamping block (7).

2. A fan with detachable filter screen structure according to claim 1, characterized in that: The side of the elastic sheet (6) is fixedly installed with the inclined surface clamping block (7).

3. A fan with detachable filter screen structure according to claim 1, characterized in that: The dustproof frame (2) is fixedly installed with a dust screen (11).

4. The fan with detachable filter screen structure according to claim 1, characterized in that: The middle part of the frame (1) is fixedly installed with a pressing piece (10) on both sides, the horizontal section of the pressing piece (10) is L-shaped, and the side of the pressing piece (10) relative to the frame (1) has an inclined surface.

5. A fan with detachable filter screen structure according to claim 4, characterized in that: The dustproof frame (2) is fixedly installed with two clamping grooves (12) on both sides.

6. A fan with detachable filter screen structure according to claim 5, characterized in that: The side of the top block (13) is fixedly installed with a top rod (9), and the side of the top rod (9) extends to the side of the frame (1) through the through slot (8), and the two top rods (9) on the same side of the frame (1) are fixedly connected with a connecting rod (14).

7. A fan with detachable filter screen structure according to claim 6, characterized in that: The side of the connecting rod (14) is provided with an inclined surface groove (15) in the middle part, and the inclined surface groove (15) and the side of the corresponding pressing piece (10) are interpenetrated.