Noise reduction and shock absorption structure of fan

Abstract

The utility model discloses a noise reduction and shock absorption structure of a fan, which comprises a shell, the fan is arranged in the shell, a sound absorption plate is arranged on the inner wall of the shell, eight shock absorption mechanisms are arranged in the shell, a back plate is arranged in the shell, and four side plates are fixedly connected to one side of the back plate. The two ends of one side of the side plate are each fixedly connected with two limiting plates, a cover plate is arranged on one side of the shell, the two ends of the side, close to the shell, of the cover plate are each fixedly connected with an extrusion plate, the two extrusion plates are symmetrically arranged, the inner walls of the two sides of the shell are each fixedly connected with two guide rods, and the two guide rods located at the same end are each sleeved with the same sliding plate. And the sliding plate is slidably connected with the guide rod, a mounting groove is formed in the sliding plate, and a second spring and a moving plate are arranged in the mounting groove. The utility model has the advantages that the operation is simple, the fan is convenient to mount and dismount, the time and energy required for mounting and dismounting the fan are effectively reduced, the working efficiency is improved, and the noise caused by vibration can be effectively reduced.

Description

Technical Field

[0001] This utility model relates to the field of fan noise reduction and vibration damping technology, and in particular to a fan noise reduction and vibration damping structure. Background Technology

[0002] A search revealed Chinese patent CN222185243U, which discloses a noise reduction and vibration damping structure for a cooling fan. The structure includes: a protective shell; a sound-absorbing plate disposed inside the protective shell, the sound-absorbing plate having multiple sound-absorbing holes; sound-absorbing holes located within the sound-absorbing plate and connected to the sound-absorbing holes; and sound-absorbing fibers disposed inside the sound-absorbing holes and the sound-absorbing holes. This noise reduction and vibration damping structure uses multiple damping springs inside the protective shell to buffer and dampen the cooling fan. The damping springs surrounding the cooling fan enhance the damping effect. Further buffering and damping is achieved through a buffer airbag connected to a connecting plate, enhancing the damping effect. The sound-absorbing fibers adhering to the sound-absorbing holes and the sound-absorbing holes block and weaken noise entering these holes and holes. The sound-absorbing holes reflect and absorb noise entering them, gradually eliminating the noise and reducing its generation.

[0003] The noise reduction and vibration damping structure of the cooling fan in the above patent has the following shortcomings: it is not convenient to install and disassemble the cooling fan; if the cooling fan works under high load for a long time, it is prone to aging and damage; in order to ensure that the cooling fan can work stably, it is necessary to regularly inspect, maintain or replace the cooling fan; if the installation and disassembly of the cooling fan is difficult, it will take a lot of time and effort. Therefore, it is necessary to design a noise reduction and vibration damping structure for the fan to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a noise reduction and vibration damping structure for a fan.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A noise reduction and vibration damping structure for a fan includes a housing, inside which a fan is housed. A sound-absorbing panel is installed on the inner wall of the housing. Eight vibration damping mechanisms are installed inside the housing. A back plate is installed inside the housing. Four side plates are fixedly connected to one side of the back plate. Two limiting plates are fixedly connected to both ends of one side of each side plate. A cover plate is installed on one side of the housing. Two pressing plates are fixedly connected to both ends of the cover plate near the housing, and the two pressing plates are symmetrically arranged. Two guide rods are fixedly connected to the inner walls of both sides of the housing. The two guide rods at the same end are fitted with the same sliding plate, which slidably connects to the guide rods. An installation groove is formed on the sliding plate, and a second spring and a moving plate are installed in the installation groove. The moving plate slidably connects to the sliding plate. A locking block is fixedly connected to one side of the moving plate. Locking slots are formed on both sides of the fan, and the locking blocks fit into the locking slots. Due to the use of… This invention employs a technique to limit and fix the fan during the installation of the cover plate. When installing the cover plate, the locking block moves until it inserts into the slot, thus restricting the fan's position. To disassemble, the cover plate is removed, and the two sliding plates are moved apart to remove the locking block from the slot, releasing the restriction. The fan can then be removed from the first positioning rod and the rubber sleeve. This effectively solves the problems mentioned in the background technology, such as the inconvenience of installing and disassembling cooling fans in most existing devices, the aging and damage of cooling fans under long-term high-load operation, the need for regular maintenance or replacement to ensure stable operation, and the time and effort required for installation and disassembly. This invention achieves the technical effect of simple operation, easy installation and disassembly of the fan, effectively reducing the time and effort required for installation and disassembly, and improving work efficiency.

[0007] Preferably, the shock absorption mechanism includes a damping telescopic rod, the base of which is fixed to the inner wall of the outer shell, a first spring is sleeved on the damping telescopic rod, a fixed seat is fixedly connected to the telescopic end of the damping telescopic rod, a roller is rotatably connected to the fixed seat, and the roller is disposed between two limiting plates.

[0008] Preferably, the back plate has four first positioning rods fixedly connected to the side near the cover plate, and the outer walls of the four first positioning rods are all fixedly connected to rubber sleeves, with the fan sleeved on the rubber sleeves.

[0009] Preferably, both the cover plate and the outer shell have openings, and both the cover plate and the outer shell are provided with dustproof nets at the openings.

[0010] Preferably, a second magnet is fixedly connected to both sides of the dustproof net, and a first magnet is fixedly connected to both sides of the outer shell, and the first magnet and the second magnet attract each other.

[0011] Preferably, the outer shell has four second positioning rods fixedly connected to the side near the cover plate, and the cover plate has holes at its four corners that are adapted to the second positioning rods, and the cover plate is sleeved on the second positioning rods.

[0012] The beneficial effects of this utility model are as follows:

[0013] Because it employs a technique that limits and fixes the fan during the installation of the cover plate, the locking block can be moved until it inserts into the slot during cover plate installation, thus restricting the fan's position. To disassemble, the cover plate is removed, and the two sliding plates are moved apart to remove the locking block from the slot, releasing the restriction. The fan can then be removed from the first positioning rod and the rubber sleeve. This effectively solves the problems mentioned in the background technology, such as the inconvenience of installing and disassembling cooling fans in most existing devices, the aging and damage of cooling fans under long-term high-load operation, the need for regular maintenance or replacement to ensure stable operation, and the time and effort required for difficult installation and disassembly. This technology simplifies operation, facilitates fan installation and disassembly, effectively reduces the time and effort required for fan installation and disassembly, and improves work efficiency. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of a noise reduction and vibration damping structure for a fan proposed in this utility model;

[0015] Figure 2 This is a schematic diagram of the assembled fan structure of a fan noise reduction and vibration damping structure proposed in this utility model;

[0016] Figure 3 This is a partial structural diagram of a noise reduction and vibration damping structure for a fan proposed in this utility model;

[0017] Figure 4 This is a partial unfolded structural diagram of a noise reduction and vibration damping structure for a fan proposed in this utility model;

[0018] Figure 5 This is a schematic diagram of the fan section of a noise reduction and vibration damping structure for a fan proposed in this utility model.

[0019] Figure 6 This is a cross-sectional view of the sliding plate of a noise reduction and vibration damping structure for a fan proposed in this utility model.

[0020] Figure 7 This is a top view of the extrusion plate of a noise reduction and vibration damping structure for a fan proposed in this utility model.

[0021] In the diagram: 1. Outer shell; 2. Fan; 201. Slot; 3. Shock absorption mechanism; 301. Damping telescopic rod; 302. First spring; 303. Fixing base; 304. Roller; 4. Back plate; 5. Side plate; 6. Limiting plate; 7. Cover plate; 8. Extrusion plate; 9. Guide rod; 10. Sliding plate; 11. Mounting slot; 12. Second spring; 13. Moving plate; 14. Locking block; 15. First positioning rod; 16. Rubber sleeve; 17. Dustproof net; 18. First magnet; 19. Second magnet; 20. Second positioning rod. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0023] Reference Figure 1-7 A noise reduction and vibration damping structure for a fan includes a housing 1, a fan 2 housed inside the housing 1, a sound-absorbing plate on the inner wall of the housing 1, eight vibration damping mechanisms 3 inside the housing 1, a back plate 4 inside the housing 1, four side plates 5 fixedly connected to one side of the back plate 4, two limiting plates 6 fixedly connected to both ends of one side of each side plate 5, a cover plate 7 on one side of the housing 1, and compression plates 8 fixedly connected to both ends of the cover plate 7 near the housing 1, the two compression plates 8 being symmetrically arranged, two guide rods 9 fixedly connected to the inner walls of both sides of the housing 1, the two guide rods 9 at the same end being fitted with the same sliding plate 10, the sliding plate 10 slidably connecting to the guide rods 9, an installation groove 11 on the sliding plate 10, a second spring 12 and a moving plate 13 housed in the installation groove 11, the moving plate 13 slidably connecting to the sliding plate 10, a locking block 14 fixedly connected to one side of the moving plate 13, and locking slots 201 on both sides of the fan 2, the locking block 14 and the locking slot 201 being connected to each other. The 01-phase compatibility design utilizes a technique that limits and fixes the fan during the installation of the cover plate. This allows the locking block to move until it inserts into the slot, thus restricting the fan's position. To remove the fan, simply remove the cover plate, move the two sliding plates apart to release the locking block from the slot, and remove the fan from the first positioning rod and rubber sleeve. This effectively solves the problems mentioned in the background technology, such as the inconvenience of installing and removing cooling fans in most existing devices, the aging and damage of cooling fans under long-term high-load operation, the need for regular maintenance or replacement to ensure stable operation, and the time and effort required for installation and removal. This design simplifies operation, facilitates fan installation and removal, effectively reduces the time and effort required for fan installation and removal, and improves work efficiency.

[0024] In this utility model, the shock absorption mechanism 3 includes a damping telescopic rod 301. The base of the damping telescopic rod 301 is fixed to the inner wall of the outer shell 1. The damping telescopic rod 301 is fitted with a first spring 302. The telescopic end of the damping telescopic rod 301 is fixedly connected to a fixed seat 303. A roller 304 is rotatably connected to the fixed seat 303. The roller 304 is disposed between two limiting plates 6. Through the mutual cooperation of the damping telescopic rod 301 and the first spring 302, the first spring 302 is responsible for absorbing and releasing energy to reduce impact, and the damping telescopic rod 301 dissipates energy through damping force, slowing down the amplitude and time of the side plate 5 movement, thereby reducing and mitigating the sound and damage caused by vibration.

[0025] In this utility model, the back plate 4 is fixedly connected to four first positioning rods 15 on the side near the cover plate 7. The outer walls of the four first positioning rods 15 are all fixedly connected to rubber sleeves 16. The fan 2 is sleeved on the rubber sleeves 16. The rubber sleeves 16 are in contact with the fan 2. When the fan 2 vibrates, the rubber sleeves 16 can absorb and buffer these vibration energies through their own elastic deformation, reducing the vibration from being transmitted to other parts or the entire structure.

[0026] In this utility model, both the cover plate 7 and the outer shell 1 have openings, and both the cover plate 7 and the outer shell 1 are provided with dustproof nets 17 at the openings. The dustproof nets 17 can prevent external debris from entering and contacting the fan 2, ensuring that the fan 2 can work stably.

[0027] In this utility model, the dustproof net 17 is fixedly connected to the second magnet 19 on both sides, and the outer shell 1 is fixedly connected to the first magnet 18 on both sides. The first magnet 18 and the second magnet 19 attract each other, and the first magnet 18 and the second magnet 19 attract each other because they are opposite in polarity, so that the cover plate 7 can be fixed on the outer shell 1.

[0028] In this utility model, the outer shell 1 is fixedly connected with four second positioning rods 20 on the side near the cover plate 7. The four corners of the cover plate 7 are provided with holes that are compatible with the second positioning rods 20. The cover plate 7 is sleeved on the second positioning rods 20. The position of the cover plate 7 can be easily positioned through the holes on the second positioning rods 20 and the cover plate 7.

[0029] Working principle: During use, when the fan 2 vibrates, the rubber sleeve 16 can absorb and buffer this vibration energy through its own elastic deformation, reducing the transmission of vibration to other parts or the entire structure. Furthermore, during vibration, it allows the roller 304 to move, which in turn moves the fixed seat 303. The fixed seat 303 then causes the damping telescopic rod 301 and the first spring 302 to further contract or expand. Through the cooperation of the damping telescopic rod 301 and the first spring 302, the first spring 302 absorbs and releases energy, reducing impact, while the damping telescopic rod 301 dissipates energy through damping force, slowing down the amplitude and duration of the side plate 5's movement, thereby reducing and mitigating the noise and damage caused by vibration. When installing the fan 2 into this device, align the hole on the fan 2 with the first positioning rod 15, press the fan 2 to move it along the first positioning rod 15, and finally fit the fan 2 onto the rubber sleeve 16. Align the cover plate 7 with the second positioning rod 20 and move the cover plate 7 along the second positioning rod 20. The second positioning rod 20 will drive the pressing plate 8 to move. When the inclined surface of the pressing plate 8 contacts the sliding plate 10, if it continues to move, the pressing plate 8 will press the sliding plate 10, causing the two sliding plates 10 to move closer to each other. The movement of the sliding plate 10 will drive the second spring 12 to move, and the second spring 12 will drive the moving plate 13 to move. The moving plate 13 will drive the locking block 14 to move. When the straight surface of the pressing plate 8 contacts the sliding plate 10, the locking block 14 will insert into the locking slot 201 to limit the fan 2. At this time, the first magnet 18 and the second magnet 19 attract each other, fixing the cover plate 7 to the outer shell 1. When disassembling, remove the cover plate 7, and then move the two sliding plates 10 to move them away from each other. Then the locking block 14 can be removed from the locking slot 201, releasing the limitation on the fan 2. The fan 2 can then be removed for replacement or repair.

[0030] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A noise reduction and vibration damping structure for a fan, comprising a housing (1), characterized in that, A fan (2) is installed inside the outer shell (1). A sound-absorbing plate is installed on the inner wall of the outer shell (1). Eight shock-absorbing mechanisms (3) are installed inside the outer shell (1). A back plate (4) is installed inside the outer shell (1). Four side plates (5) are fixedly connected to one side of the back plate (4). Two limiting plates (6) are fixedly connected to both ends of one side of each side plate (5). A cover plate (7) is installed on one side of the outer shell (1). An extrusion plate (8) is fixedly connected to both ends of the cover plate (7) on the side closest to the outer shell (1). The two extrusion plates (8) are symmetrically arranged. The two sides of the outer shell (1) Two guide rods (9) are fixedly connected to the inner wall. The two guide rods (9) at the same end are fitted with the same sliding plate (10). The sliding plate (10) is slidably connected to the guide rods (9). An installation groove (11) is provided on the sliding plate (10). A second spring (12) and a moving plate (13) are provided in the installation groove (11). The moving plate (13) is slidably connected to the sliding plate (10). A locking block (14) is fixedly connected to one side of the moving plate (13). A locking groove (201) is provided on both sides of the fan (2). The locking block (14) is adapted to the locking groove (201).

2. The noise reduction and vibration damping structure of the fan according to claim 1, characterized in that, The damping mechanism (3) includes a damping telescopic rod (301), the base of which is fixed to the inner wall of the outer shell (1), the damping telescopic rod (301) is fitted with a first spring (302), the telescopic end of which is fixedly connected to a fixed seat (303), and a roller (304) is rotatably connected to the fixed seat (303), the roller (304) being disposed between two limiting plates (6).

3. The noise reduction and vibration damping structure of the fan according to claim 1, characterized in that, The back plate (4) has four first positioning rods (15) fixedly connected to the side near the cover plate (7). The outer walls of the four first positioning rods (15) are all fixedly connected with rubber sleeves (16), and the fan (2) is sleeved on the rubber sleeves (16).

4. The noise reduction and vibration damping structure for a fan according to claim 3, characterized in that, Both the cover plate (7) and the outer shell (1) have openings, and both the cover plate (7) and the outer shell (1) are provided with dustproof nets (17) at the openings.

5. The noise reduction and vibration damping structure for a fan according to claim 4, characterized in that, The dustproof net (17) is fixedly connected to two sides with a second magnet (19), and the outer shell (1) is fixedly connected to two sides with a first magnet (18). The first magnet (18) and the second magnet (19) attract each other.

6. The noise reduction and vibration damping structure for a fan according to claim 5, characterized in that, The outer shell (1) has four second positioning rods (20) fixedly connected on the side near the cover plate (7). The cover plate (7) has holes at its four corners that are adapted to the second positioning rods (20). The cover plate (7) is fitted onto the second positioning rods (20).

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