Case noise reduction device in computer operation
By installing a vibration damping mechanism between the chassis and the cooling fan, including a fixed frame, a fixed cylinder, a telescopic rod, and a damping plate, the problem of chassis resonance noise caused by the cooling fan is solved, achieving improved noise reduction and convenient cooling fan maintenance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-17
- Publication Date
- 2026-03-13
AI Technical Summary
During use, the eccentric rotation of the cooling fan in existing computer cases causes vibration between the fan and the fan bracket, resulting in chassis resonance and generating significant noise.
A shock-absorbing mechanism is installed between the chassis and the cooling fan, including a fixed frame, a fixed cylinder, a telescopic rod, and a damping plate. The damping plate and the spring work together to absorb the shock force of vibration, and the rotating mechanism facilitates the disassembly and installation of the cooling fan.
It effectively buffers and absorbs the vibration of the cooling fan, avoids noise caused by chassis resonance, improves the noise reduction effect, and facilitates the maintenance and installation of the cooling fan.
Smart Images

Figure CN223993065U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of chassis noise reduction technology, and in particular to a chassis noise reduction device for computer operation. Background Technology
[0002] A computer, commonly known as a PC, is a modern electronic computing machine used for high-speed calculations. It can perform numerical calculations, logical calculations, and has storage and memory functions. It is a modern intelligent electronic device that can run according to a program and automatically and quickly process massive amounts of data.
[0003] Computers can be categorized into five types: supercomputers, industrial control computers, network computers, personal computers, and embedded computers. More advanced computers include biological computers, photonic computers, and quantum computers. The computer case, as a component of a computer, primarily serves to house and secure the various computer components. Additionally, cooling fans are installed inside the case to cool the internal hardware.
[0004] The existing chassis have the following drawbacks in actual use:
[0005] Currently, computer cases on the market are equipped with multiple cooling fans for heat dissipation. However, during operation, the fan shaft may become slightly off-center, causing the fan and its bracket to vibrate and resonate with the case, resulting in significant noise. Utility Model Content
[0006] In view of the technical problem that existing computer cases on the market currently have multiple cooling fans for heat dissipation, but during the operation of the fans, the fan shaft will become slightly off-center, which can easily cause the fan and fan bracket to vibrate and resonate with the case, thus generating a lot of noise. This utility model provides a computer case noise reduction device for computer operation.
[0007] The technical solution adopted by this utility model is: a computer chassis noise reduction device during computer operation, including a chassis and a cooling fan. A shock-absorbing mechanism is provided between the cooling fan and the chassis. The shock-absorbing mechanism includes a fixed frame, a fixed cylinder, and a telescopic rod. The fixed frame is fixedly installed on one side of the inner wall of the chassis. The fixed cylinder and the telescopic rod are both disposed between the fixed frame and the cooling fan. A damping plate is fixedly installed at one end of the telescopic rod. The damping plate is slidably installed inside the fixed cylinder. A spring is provided between the damping plate and one side of the inner wall of the fixed cylinder. Rotation mechanisms are provided between the fixed cylinder and the fixed frame and between the telescopic rod and the cooling fan.
[0008] Furthermore, the damping plate has several through holes on one side, and the fixed cylinder contains oil, which is located between the fixed cylinder and the damping plate.
[0009] Furthermore, there are four fixed cylinders and four telescopic rods, and the number of rotating mechanisms corresponds to the number of fixed cylinders and four telescopic rods.
[0010] Furthermore, the rotating mechanism includes a fixed bracket, a rotating plate, and a fixing bolt. The rotating plate is rotatably mounted between the fixed brackets. Both the fixed brackets and the rotating plate have slots on one side. The fixing bolt is inserted into the slots. A threaded cylinder is fixedly mounted on one side of the fixed brackets, and one end of the fixing bolt is threadedly connected to the threaded cylinder.
[0011] Furthermore, a side panel is provided on one side of the chassis, and a heat dissipation vent is provided on one side of the chassis. The heat dissipation vent corresponds to the cooling fan, and a dustproof screen is provided on one side of the heat dissipation vent.
[0012] Furthermore, the cooling fan includes a support frame, a mounting bracket, a drive motor, and cooling fan blades. The mounting bracket is fixedly installed between the support frames, the drive motor is fixedly installed on one side of the mounting bracket, and the cooling fan blades are fixedly installed at the output end of the drive motor.
[0013] Furthermore, four fixing plates are fixedly installed on the lower side of the chassis, rubber pillars are fixedly installed on the lower side of the fixing plates, and anti-slip pads are fixedly installed on the lower side of the rubber pillars.
[0014] The beneficial effects of this utility model are:
[0015] 1. This utility model, through its shock-absorbing mechanism, can buffer and absorb the impact force generated by the vibration when the cooling fan is running, thereby preventing the support frame of the cooling fan from transmitting the vibration to the chassis and causing the chassis to resonate and generate noise, thus improving the noise reduction effect when the chassis is in use.
[0016] 2. Secondly, this utility model, through rubber pillars and anti-slip pads, can buffer and absorb the vibration of the chassis during operation, preventing the chassis from transmitting vibration to the placement surface and generating noise, thereby further improving the noise reduction effect when using the chassis.
[0017] 3. Secondly, through the rotating mechanism, this utility model allows users to easily remove the cooling fan when maintenance is required, and also facilitates the subsequent fixed installation of the cooling fan, thereby improving the convenience and practicality of the chassis during use. Attached Figure Description
[0018] Figure 1 This is a front perspective view of the present invention;
[0019] Figure 2 This is a cross-sectional view of the mobile frame of this utility model;
[0020] Figure 3 This is a rear-view perspective view of the present invention;
[0021] Figure 4 This is a partial cross-sectional view of the present invention;
[0022] Figure 5 This is the utility model Figure 4 A partial structural view.
[0023] The components in the diagram are labeled as follows: 1. Chassis; 2. Side panel; 3. Fixing plate; 4. Rubber column; 5. Anti-slip pad; 6. Heat dissipation vent; 7. Dustproof net; 8. Shock absorption mechanism; 9. Cooling fan; 10. Support frame; 11. Mounting frame; 12. Drive motor; 13. Cooling fan blades; 14. Fixing frame; 15. Fixing bracket; 16. Rotating plate; 17. Fixing bolt; 18. Fixing cylinder; 19. Telescopic rod; 20. Damping plate; 21. Through hole; 22. Spring; 23. Rotating mechanism. Detailed Implementation
[0024] In the description of this utility model, it should be noted that the terms "front", "up", "down", "left", "right", "vertical", "horizontal", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are 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.
[0025] 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 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.
[0026] The following is in conjunction with the appendix Figures 1-5 The present invention will be further described below.
[0027] In order to solve the problems existing in the background art, this application proposes the following technical solution: a noise reduction device for computer chassis during operation.
[0028] The specific technical solution includes a chassis 1 and a cooling fan 9. A shock-absorbing mechanism 8 is provided between the cooling fan 9 and the chassis 1. The shock-absorbing mechanism 8 includes a fixed frame 14, a fixed cylinder 18, and a telescopic rod 19. The fixed frame 14 is fixedly installed on one side of the inner wall of the chassis 1. The fixed cylinder 18 and the telescopic rod 19 are both located between the fixed frame 14 and the cooling fan 9. A damping plate 20 is fixedly installed at one end of the telescopic rod 19. The damping plate 20 is slidably installed inside the fixed cylinder 18. A spring 22 is provided between the damping plate 20 and one side of the inner wall of the fixed cylinder 18. Rotating mechanisms 23 are provided between the fixed cylinder 18 and the fixed frame 14, and between the telescopic rod 19 and the cooling fan 9. Several through holes 21 are opened on one side of the damping plate 20. Oil is provided inside the fixed cylinder 18, and the oil is located between the fixed cylinder 18 and the damping plate 20. There are four fixed cylinders 18 and four telescopic rods 19. The number of rotating mechanisms 23 is the same as that of the fixed cylinder 18 and the telescopic rod 19. Corresponding to the number of components, the rotating mechanism 23 includes a fixed bracket 15, a rotating plate 16, and a fixing bolt 17. The rotating plate 16 is rotatably installed between the fixed brackets 15. Both the fixed brackets 15 and the rotating plate 16 have slots on one side, and the fixing bolt 17 is inserted into the slots. A threaded cylinder is fixedly installed on one side of the fixed bracket 15, and one end of the fixing bolt 17 is threadedly connected to the threaded cylinder. Four fixed plates 3 are fixedly installed on the lower side of the chassis 1. Rubber columns 4 are fixedly installed on the lower side of the fixed plates 3, and anti-slip pads 5 are fixedly installed on the lower side of the rubber columns 4. The rotating mechanism 23 can avoid affecting the stroke of the shock absorption mechanism 8. The eight fixed brackets 15 are respectively fixedly installed around the fixed frame 14 and the support frame 10. The eight rotating plates 16 are respectively fixedly connected to the four fixed cylinders 18 and the four telescopic rods 19. By rotating the fixing bolt 17, the fixing bolt 17 is separated from the threaded cylinder, and the entire cooling fan 9 can be disassembled and installed.
[0029] Reference Figure 1 , Figure 2 and Figure 3 As shown, a side panel 2 is provided on one side of the chassis 1, and a heat dissipation vent 6 is provided on one side of the chassis 1. The heat dissipation vent 6 corresponds to the cooling fan 9. A dust filter 7 is provided on one side of the heat dissipation vent 6. The cooling fan 9 includes a support frame 10, a mounting bracket 11, a drive motor 12, and cooling fan blades 13. The mounting bracket 11 is fixedly installed between the support frames 10, the drive motor 12 is fixedly installed on one side of the mounting bracket 11, and the cooling fan blades 13 are fixedly installed at the output end of the drive motor 12. By starting the drive motor 12, the cooling fan blades 13 are driven to rotate, so that the cooling fan blades 13 can exhaust the hot air inside the chassis 1 through the heat dissipation vent 6, thereby dissipating heat inside the chassis 1. The dust filter 7 can prevent dust from entering the inside of the chassis 1. The side panel 2 facilitates the inspection and installation of computer components inside the chassis 1.
[0030] To ensure that those skilled in the art can fully understand the technical solution, this application provides the following overall overview:
[0031] In use, when the shaft of the cooling fan 9 rotates, a certain eccentricity is generated, causing the cooling fan blades 13 and the support frame 10 to vibrate. The support frame 10 can compress the four telescopic rods 19 on its periphery. The compressive force on the telescopic rods 19 can drive the damping plate 20 to slide into the fixed cylinder 18. The movement of the damping plate 20 can compress the spring 22. The spring 22 can deform under the compressive force, and during the deformation process, the spring 22 generates elastic potential energy, which buffers and absorbs the impact force generated by the vibration. This prevents the vibration of the support frame 10 from being transmitted to the chassis 1, causing the chassis 1 to resonate and generate noise. In addition, the damping plate 20 can compress the oil when it slides. During the compression process, the flow of the oil is restricted by the throttling effect of the through hole 21, which in turn causes the damping plate 20 to produce a damping effect when sliding. Through the damping effect of the damping plate 20, the rapid and repeated oscillation behavior of the spring 22 can be suppressed, so that the telescopic rod 19 will not cause the support frame 10 to rise and fall rapidly, which improves the smoothness of the operation of the cooling fan 9 and reduces the generation of noise. In addition, the rubber column 4 and the anti-slip pad 5 can buffer and absorb the vibration of the chassis 1, thereby preventing the chassis 1 from transmitting the vibration to the placement surface and generating noise.
[0032] All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. In addition, the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here. The contents not described in detail in this specification belong to the prior art known to those skilled in the art.
[0033] Although embodiments of the present invention have been shown and described, the scope of the present invention will be defined by the appended claims and their equivalents for those skilled in the art.
Claims
1. A computer running in a chassis noise reduction device, characterized in that, Including case (1) and cooling fan (9), damping mechanism (8) is arranged between the cooling fan (9) and the case (1), the damping mechanism (8) includes fixed frame (14), fixed cylinder (18) and telescopic rod (19), the fixed frame (14) is fixedly installed on the inner wall of the case (1) one side, the fixed cylinder (18) and the telescopic rod (19) are both arranged between the fixed frame (14) and the cooling fan (9), one end of the telescopic rod (19) is fixedly installed with damping plate (20), the damping plate (20) is slidably installed in the fixed cylinder (18), spring (22) is arranged between the damping plate (20) and the inner wall of the fixed cylinder (18) one side, rotating mechanism (23) is arranged between the fixed cylinder (18) and the fixed frame (14) and between the telescopic rod (19) and the cooling fan (9).
2. The computer running noise reduction device of claim 1, wherein, A plurality of through holes (21) are formed in one side of the damping plate (20), and oil is arranged in the fixed cylinder (18), and the oil is located between the fixed cylinder (18) and the damping plate (20).
3. The computer noise reduction device of claim 1, wherein, The number of the fixed cylinder (18) and the telescopic rod (19) is four, and the number of the rotating mechanism (23) corresponds to the number of the fixed cylinder (18) and the telescopic rod (19).
4. The computer noise reduction device of claim 3, wherein, The rotating mechanism (23) includes fixed support (15), rotating plate (16) and fixed bolt (17), the rotating plate (16) is rotatably installed between the fixed support (15), the fixed support (15) and the rotating plate (16) one side all start to have the notch, the fixed bolt (17) is inserted into the notch, the fixed support (15) one side is fixedly installed with threaded cylinder, and one end of the fixed bolt (17) is screwed with the threaded cylinder.
5. The computer noise reduction device of claim 1, wherein, One side of the case (1) is provided with a side plate (2), and a heat dissipation opening (6) is formed in one side of the case (1), the heat dissipation opening (6) corresponds to the cooling fan (9), and a dust screen (7) is arranged on one side of the heat dissipation opening (6).
6. The computer noise reduction device of claim 5, wherein, The cooling fan (9) includes support frame (10), mounting frame (11), driving motor (12) and heat dissipation fan blade (13), the mounting frame (11) is fixedly installed between the support frame (10), the driving motor (12) is fixedly installed on one side of the mounting frame (11), and the heat dissipation fan blade (13) is fixedly installed on the output end of the driving motor (12).
7. The computer noise reduction device of claim 6, wherein, Four fixed plates (3) are fixedly installed on the lower side of the case (1), rubber columns (4) are fixedly installed on the lower side of the fixed plates (3), and anti-skid pads (5) are fixedly installed on the lower side of the rubber columns (4).