Vibration damping structure and electronic device

Abstract

The invention provides an electronic device. The electronic device comprises a machine shell, a hard disk, at least one fan and at least one vibration reduction structure. The hard disk is arranged in the case. The at least one fan is arranged in the machine shell. The at least one damping structure is located between the hard disk and the at least one fan and comprises an elastic piece, a first mass block, at least one compression spring and at least one second mass block. The elastic sheet comprises two mounting parts and a bending part. The two installation parts are installed on the machine shell. The two opposite ends of the bending part are connected to the two installation parts respectively. The distance between the middle section of the bending part and the casing is larger than the distance between the two opposite ends of the bending part and the casing. The first mass block is arranged at the middle section of the bending part. One end of at least one compression spring is arranged on one of the two mounting parts. One end of the at least one second mass block is connected to the other end of the at least one compression spring. According to the vibration reduction structure, the low assembly cost and the vibration reduction effect can be achieved at the same time.

Description

Technical Field

[0001] This application relates to a vibration damping structure and electronic device, particularly a vibration damping structure and electronic device comprising a spring, a mass block, and a compression spring. Background Technology

[0002] With the rapid development of technology, the computing power of processors has increased significantly, but it also generates a lot of heat. To ensure that the processor is not damaged by high heat, fans need to be installed in electronic products to dissipate the excessive heat from the processor, so that the processor can operate within a certain operating temperature range.

[0003] Vibration is generated when a fan operates at high speed. When this vibration is transmitted to the hard drive inside an electronic device, it causes a position error signal (PES), affecting the accuracy of data reading and reducing hard drive read efficiency (IOPS). This, in turn, reduces the overall performance of the server and may even lead to data loss. Therefore, vibration suppression is crucial in the server industry. Generally, manufacturers install vibration damping components inside the chassis to absorb the vibration generated by the fan. However, currently available vibration damping components are expensive. Furthermore, the numerous parts in these components, coupled with limited space within electronic devices, make them difficult to assemble. Moreover, current vibration damping components are not compatible with different chassis sizes. This means manufacturers must select different sized vibration damping components to match different chassis sizes, increasing assembly costs. Therefore, finding a vibration damping component that balances low assembly costs and effective vibration reduction is one of the problems that researchers must solve. Summary of the Invention

[0004] This application aims to provide a vibration damping structure and electronic device, thereby enabling the vibration damping structure to achieve both low assembly cost and vibration damping effect.

[0005] An embodiment of this application discloses a vibration damping structure for installation within a housing, comprising a spring, a first mass block, at least one compression spring, and at least one second mass block. The spring includes two mounting portions and a bent portion. The two mounting portions are for mounting to the housing. The opposite ends of the bent portion are respectively connected to the two mounting portions. The distance between the middle section of the bent portion and the housing is greater than the distance between the opposite ends of the bent portion and the housing. The first mass block is disposed in the middle section of the bent portion. One end of the at least one compression spring is disposed in one of the two mounting portions. One end of the at least one second mass block is connected to the other end of the at least one compression spring.

[0006] Another embodiment of this application discloses an electronic device comprising a housing, a hard disk, at least one fan, and at least one vibration damping structure. The hard disk is disposed within the housing. At least one fan is disposed within the housing. At least one vibration damping structure is located between the hard disk and the at least one fan, and includes a spring, a first mass, at least one compression spring, and at least one second mass. The spring includes two mounting portions and a bent portion. The two mounting portions are mounted to the housing. The opposite ends of the bent portion are respectively connected to the two mounting portions. The distance between the middle section of the bent portion and the housing is greater than the distance between the opposite ends of the bent portion and the housing. The first mass is disposed in the middle section of the bent portion. One end of the at least one compression spring is disposed in one of the two mounting portions. One end of the at least one second mass is connected to the other end of the at least one compression spring.

[0007] According to the vibration damping structure and electronic device of the above embodiment, since the distance between the middle section of the curved part and the housing is greater than the distance between the opposite ends of the curved part and the housing, i.e., the curved part is a single wave shape, and the opposite ends of the compression spring are respectively connected to one end of the second mass block and the mounting part, and in conjunction with the mass adjustment of the mass block or the curvature radius adjustment of the spring, the natural frequency of the vibration damping structure can be adjusted accordingly, thus ensuring that the electronic device can still effectively dampen vibration under different operating conditions. When the vibration frequency generated by these fans matches the natural frequency of these vibration damping structures, a resonance phenomenon occurs, resulting in a significant increase in amplitude. The vibration energy generated by these fans can interact with the spring and compression spring of these vibration damping structures along its transmission path. Specifically, the vibration energy of these fans during operation is transmitted along these vibration damping structures. Through the design of the wave-shaped curved part and the compression spring, the spring can effectively absorb vibration energy and convert the vibration energy into the kinetic energy of the spring and compression spring, thereby limiting the vibration generated by these fans during operation to these vibration damping structures to dissipate the vibration energy. Furthermore, through magnetic attraction, these vibration-damping structures can be easily installed in the narrow space between the hard drive and the fans, avoiding obstacles, and are suitable for various chassis sizes. This allows the vibration-damping structures to achieve both low assembly costs and effective vibration reduction.

[0008] Furthermore, compared to general vibration damping structures that only contain a single elastic element and a mass block, the vibration damping structure of this embodiment combines a composite spring, a first mass block, a compression spring, and a second mass block, thus widening the vibration damping frequency band.

[0009] The above description of the contents of this application and the following description of the embodiments are used to demonstrate and explain the principles of this application, and to provide a further explanation of the scope of this patent application. Attached Figure Description

[0010] Figure 1 This is a plan view of the electronic device according to an embodiment of this application.

[0011] Figure 2 for Figure 1 A partially enlarged three-dimensional schematic diagram of the electronic device.

[0012] Figure 3 for Figure 2 A plan view of the electronic device.

[0013] Figure 4 for Figure 2 An exploded view of the electronic device.

[0014] Figure 5 for Figure 1 A top view of the spring clips of the electronic device.

[0015] Figure 6 for Figure 1 A side view of the spring clip of the electronic device.

[0016] Component designation explanation

[0017] 10 Electronic devices

[0018] 20. Chassis

[0019] 21. Chassis Body

[0020] 22 First magnetic component

[0021] 30 hard drives

[0022] 40 fans

[0023] 50 Vibration-damping structure

[0024] 51 Shrapnel

[0025] 511 Installation Department

[0026] 512 Bending section

[0027] 5121 Assembly Hole

[0028] 5122 Missing slot

[0029] 5123 Bottom side curved surface

[0030] 5124 Top Side Curved Surface

[0031] 52 First mass block

[0032] 521 surface

[0033] 522 Assembly Column

[0034] 523 mounting slot

[0035] 53 Compression Spring

[0036] 54 Second mass block

[0037] 55 Second magnetic component

[0038] Distance between D1 and D2

[0039] H height

[0040] Lengths of L1 and L2

[0041] T thickness

[0042] Width of W1, W2 Detailed Implementation

[0043] Please see Figure 1 . Figure 1 This is a plan view of the electronic device according to an embodiment of this application. The electronic device 10 of this embodiment includes a housing 20, a hard disk 30, multiple fans 40, and multiple vibration damping structures 50. The hard disk 30 and the fans 40 are disposed within the housing 20. The vibration damping structures 50 are arranged between the hard disk 30 and the fans 40 using the concept of local resonators, allowing the vibrations generated by the fans 40 to interact with the vibration damping structures 50 along their transmission path, thereby reducing the transmission of vibrations generated by the fans 40 during operation to the hard disk 30. This avoids the problem of reduced hard disk read performance (IOPS).

[0044] These vibration damping structures 50 induce resonance in local resonators when the external vibration frequency approaches their resonant frequency, forming a vibration bandgap. In other words, local resonance is caused by the interaction between the local resonant mass unit and the elastic wave of the elastic element, thereby enhancing the vibration suppression effect. For example, the vibration frequencies that these vibration damping structures 50 can absorb are, for example, 300 Hz to 400 Hz and 1200 Hz to 1500 Hz. Among them, the fundamental frequency and its overtones near 300 Hz to 400 Hz are, for example, the frequencies or frequency bands at which the fans 40 vibrate when they are running, and 1200 Hz to 1500 Hz is, for example, a sensitive frequency band in which the hard drive 30 is easily affected by vibration.

[0045] Please refer to the following: Figures 2 to 4 . Figure 2 for Figure 1 A partially enlarged three-dimensional schematic diagram of the electronic device. Figure 3 for Figure 2 A plan view of the electronic device. Figure 4 for Figure 2 An exploded view of the electronic device.

[0046] Each of these damping structures 50 includes a spring plate 51, a first mass block 52, two compression springs 53, and two second mass blocks 54. That is, the spring plate 51, the first mass block 52, the compression springs 53, and the second mass blocks 54 together form a resonator, and the natural frequency of the resonator follows the formula below: Where f is the natural frequency of the resonator (in Hertz, Hz), k is the stiffness of the spring 51 and the compression spring 53 (in Newtons per meter, N / m), and m is the mass of the first mass block 52 and the second mass block 54 (in kilograms, kg). Furthermore, the smaller the stiffness of the spring 51 and the compression spring 53, the smaller the natural frequency of the resonator. Conversely, the larger the mass of the first mass block 52 and the second mass block 54, the smaller the natural frequency of the resonator.

[0047] The spring 51 includes two mounting portions 511 and a bent portion 512. The two mounting portions 511 are mounted on the housing 20. Specifically, the housing 20 includes a housing body 21 and a plurality of first magnetic elements 22. These first magnetic elements 22 are disposed on the housing body 21. The spring 51 is made of, for example, a magnetic material. These first magnetic elements 22 attract the two mounting portions 511 of each of these vibration damping structures 50, so that the two mounting portions 511 are securely mounted on the housing 20. By securely mounting the two mounting portions 511 on the housing 20, the vibrations generated when the fans 40 are operating can be effectively transmitted to the vibration damping structures 50.

[0048] The two opposite ends of the bent portion 512 are respectively connected to the two mounting portions 511. The distance D1 between the middle section of the bent portion 512 and the housing 20 is greater than the distance D2 between the opposite ends of the bent portion 512 and the housing 20. That is to say, the bent portion 512 is, for example, a single wave-shaped wave, so that the spring piece 51 can effectively absorb vibration energy and convert the vibration energy into the kinetic energy of the spring piece 51.

[0049] The first mass block 52 is disposed in the middle section of the curved portion 512, that is, the first mass block 52 is disposed at the crest of the curved portion 512. Specifically, the middle section of the curved portion 512 includes an assembly hole 5121. The first mass block 52 includes a surface 521 and an assembly post 522. The surface 521 is, for example, a plane and faces the curved portion 512. The assembly post 522 protrudes from the surface 521. The assembly post 522 is assembled into the assembly hole 5121. Specifically, the assembly post 522 is, for example, screwed into the assembly hole 5121. Furthermore, when the thickness of the spring piece 51 is small enough that the assembly post 522 passes through the spring piece 51, a nut (not shown) can be additionally used to lock the assembly post 522 at the point where it passes through the spring piece 51, that is, the first mass block 52 is fixed by locking the nut to the side of the spring piece 51 away from the first mass block 52. Moreover, when the mass of the first mass block 52 is small, the mass of the nut can be included together with the mass of the first mass block 52 to adjust the natural frequency. Furthermore, the first mass block 52 may be made of, for example, metal or rubber with damping properties, depending on its application scenario and required physical characteristics.

[0050] One end of each of the two compression springs 53 is respectively disposed on one of the two mounting portions 511. The compression springs 53 are made of, for example, metal, acrylic, resin, or plastic. One end of each of the two second mass blocks 54 is connected to the other end of the two compression springs 53. The second mass blocks 54, depending on their application and required physical characteristics, may be made of, for example, metal or a damping rubber material.

[0051] When the vibration generated by the fan 40 is transmitted to the vibration damping structure 50, if the natural frequency of the vibration damping structure 50 matches the vibration frequency of the fan 40, the vibration damping structure 50 will produce a strong amplitude enhancement effect. This vibration can be absorbed by the first mass block 52 swaying vertically on the spring 51 and the second mass block 54 swaying vertically on the compression spring 53, generating resonance. In the resonant state, the vibration energy is effectively transferred to the vibration damping structure 50. The first mass block 52 and the second mass block 54 can be selected according to the actual vibration frequency.

[0052] In this embodiment, the bending portion 512 may further include two notches 5122. The two notches 5122 are located on opposite sides of the assembly hole 5121. By providing the two notches 5122, the flexibility of the bending portion 512 can be improved, thereby enhancing the vibration damping capability of the vibration damping structure 50. Specifically, by providing the two notches 5122, the Young's modulus of the spring piece 51 can be adjusted. The Young's modulus affects the stiffness and elastic deformation capability of the spring piece 51, thereby affecting the natural frequency of the vibration damping structure 50. The smaller the Young's modulus, the lower the natural frequency.

[0053] Furthermore, when the vibrations generated by the fans 40 during operation are transmitted to the vibration damping structures 50, if the natural frequency of the vibration damping structures 50 matches the vibration frequency of the fans 40, the vibration damping structures 50 will produce a strong amplitude enhancement effect. The natural frequency of the vibration damping structures 50 can be adjusted, for example, by reducing the thickness of the spring piece 51, thus reducing the stiffness of the spring piece 51 and consequently lowering the natural frequency of the vibration damping structure 50; or by increasing the size of the notch 5122, thus reducing the stiffness of the spring piece 51 and consequently lowering the natural frequency of the vibration damping structure 50.

[0054] In this embodiment, each of these damping structures 50 may further include two second magnetic elements 55. The two second magnetic elements 55 are respectively connected to the ends of the two compression springs 53 away from the two second mass blocks 54. The two compression springs 53 are positioned on the spring sheet 51 by being attracted to the spring sheet 51 by the two second magnetic elements 55.

[0055] In this embodiment, since the distance D1 between the middle section of the bent portion 512 and the housing 20 is greater than the distance D2 between the opposite ends of the bent portion 512 and the housing 20, i.e., the bent portion 512 is a single wave shape, and the opposite ends of the compression spring 53 are respectively connected to one end of the second mass block 54 and the mounting portion 511, and in conjunction with the mass adjustment of the first mass block 52 and the second mass block 54 or the radius of curvature adjustment of the spring 51, the natural frequency of the vibration damping structure 50 can be adjusted accordingly, thus ensuring that the electronic device 10 can still effectively dampen vibration under different operating conditions. When the vibration frequency generated by these fans 40 matches the natural frequency of these vibration damping structures 50, a resonance phenomenon occurs, resulting in a significant increase in amplitude. The vibration energy generated by these fans 40 can interact with the spring 51 and compression spring 53 of these vibration damping structures 50 along its transmission path. Specifically, the vibration energy of these fans 40 during operation is transmitted along these vibration damping structures 50. The wave-shaped bend 512 and the compression spring 53 design allow the spring 51 to effectively absorb vibration energy and convert it into kinetic energy for the spring 51 and the compression spring 53. This limits the vibration generated by the operation of the fans 40 to these vibration damping structures 50 to dissipate the vibration energy. Furthermore, through magnetic attraction, these vibration damping structures 50 can be easily installed in the narrow space between the hard drive 30 and the fans 40, avoiding obstacles, and are suitable for different sizes of chassis 20. In this way, the vibration damping structures 50 achieve both low assembly costs and effective vibration damping.

[0056] Furthermore, compared to general vibration damping structures that only contain a single elastic element and a mass block, the vibration damping structure 50 of this embodiment, which combines a composite spring 51, a first mass block 52, a compression spring 53, and a second mass block 54, can broaden the frequency band of vibration damping.

[0057] Furthermore, since the housing 20 is provided with multiple first magnetic elements 22 and multiple second magnetic elements 55, these first magnetic elements 22 can attract the two mounting portions 511 of each of these vibration damping structures 50, thereby allowing the two mounting portions 511 to be mounted on the housing 20. The two compression springs 53 are positioned on the spring pieces 51 by attracting the spring pieces 51 with the two second magnetic elements 55. Therefore, it is not necessary to use additional fasteners to secure the spring pieces 51 with pre-drilled fastening holes to the housing 20, nor is it necessary to use other fasteners to position the compression springs 53 on the mounting portions 511. These vibration damping structures 50 can be easily installed and removed according to actual needs using these first magnetic elements 22 and these second magnetic elements 55. This further enhances the installation flexibility of these vibration damping structures 50. In addition, the magnetic component 22 can improve the fixing effect of the mounting part 511 of the spring 51, and prevent the vibration damping structure 50 from being unable to be stably fixed to the housing due to the boundary being too soft during oscillation. This can avoid the problem that the vibration energy cannot be effectively transmitted to the vibration damping structure and thus it is difficult to generate resonance.

[0058] In this embodiment, the side of the first mass block 52 away from the assembly column 522 includes a mounting groove 523. The mounting groove 523 is, for example, threaded (not shown) and is used for attaching other mass blocks to adjust the overall mass.

[0059] In this embodiment, there are multiple fans 40 and multiple vibration damping structures 50, but this is not a limitation. In other embodiments, there may be only one fan and one vibration damping structure.

[0060] In this embodiment, the housing 20 is provided with a plurality of first magnetic elements 22, and these first magnetic elements 22 attract the two mounting portions 511 of each of these vibration damping structures 50, so that the two mounting portions 511 are mounted on the housing 20, but this is not a limitation. In other embodiments, the housing may not be provided with first magnetic elements, but the two mounting portions of these vibration damping structures may be locked to the housing, for example, by screws.

[0061] In this embodiment, the middle section of the curved portion 512 includes an assembly hole 5121, and the first mass block 52 includes an assembly post 522, but this is not a limitation. In other embodiments, the middle section of the curved portion may include an assembly post, and the first mass block may include an assembly hole.

[0062] In this embodiment, the two compression springs 53 are positioned on the spring piece 51 by being attracted to it by two second magnetic elements 55, but this is not a limitation. In other embodiments, the two compression springs may also be positioned on the spring piece by other positioning elements.

[0063] Please see Figure 5 and Figure 6 . Figure 5 for Figure 1A top view of the spring clips of the electronic device. Figure 6 for Figure 1 A side view of the spring clip of the electronic device.

[0064] In this embodiment, when the natural frequency of the damping structure 50 is between 300 Hz and 400 Hz, the ratio of the length L1 to the width W1 of the spring piece can be between 7 and 8. For example, the ratio of the length L1 to the width W1 of the spring piece 51 can be 7.75:1. Alternatively, the ratio of the length L1, width W1, and height H of the spring piece can be 11:1.5:1. In the preferred embodiment of this embodiment, the length L1 of the spring piece 51 is, for example, between 69 mm and 70 mm. The thickness T of the spring piece 51 is, for example, at least 0.3 mm.

[0065] The greater the thickness T of the spring piece 51, the greater its stiffness. For example, when the thickness T of the spring piece 51 is 0.3 mm, its stiffness is 57058 N / m. When the thickness T of the spring piece 51 is 0.5 mm, its stiffness is 223623 N / m. When the thickness T of the spring piece 51 is 0.8 mm, its stiffness is 709801 N / m. When the thickness T of the spring piece 51 is 1 mm, its stiffness is 1148771 N / m.

[0066] In this embodiment, when the natural frequency of the damping structure is between 300 Hz and 400 Hz, the length L2 of each mounting portion 511 is, for example, between 12 mm and 14 mm. Furthermore, the curved portion 512 includes a bottom curved surface 5123 and a top curved surface 5124 facing each other. The bottom curved surface 5123 faces the housing 20. The radius of curvature of the bottom curved surface 5123 is, for example, 21.98 mm. The radius of curvature of the top curved surface 5124 is, for example, 20.23 mm, but this application is not limited thereto. Specifically, the radius of curvature of the curved portion 512 can be adjusted by the counterweight of the first mass block 52, correspondingly changing the natural frequency and rocking mode of the damping structure 50. Generally, by adjusting the radius of curvature of the curved portion 512, the stiffness of the spring 51 is reduced, thereby lowering the natural frequency of the resonator.

[0067] In a preferred embodiment of this invention, the counterweight of the first mass block 52 can be 29 grams, the counterweight of the second mass blocks 54 at opposite ends of the spring piece 51 can be 35 grams, the k-value of the two compression springs 53 is 140 k N / m, and the k-value of the spring piece 51 between the first mass block 52 and the second mass block 54 can be adjusted to 170 k N / m by adjusting the radius of curvature. In this case, the natural frequency of the vibration damping structure 50 can be adjusted to 350 Hz, but this application is not limited thereto. The counterweight of the two second mass blocks 54 can also be increased so that the natural frequency of the vibration damping structure 50 is, for example, less than 350 Hz; or the radius of curvature of the bending portion 512 between the first mass block 52 and the second mass block 54 can be reduced so that the natural frequency of the vibration damping structure 50 is, for example, greater than 350 Hz, and this application is not limited thereto.

[0068] According to the vibration damping structure and electronic device of the above embodiment, since the distance D1 between the middle section of the curved part and the housing is greater than the distance D2 between the opposite ends of the curved part and the housing, i.e., the curved part is a single wave shape, and the opposite ends of the compression spring are respectively connected to one end of the second mass block and the mounting part, and in conjunction with the mass adjustment of the mass block or the curvature radius adjustment of the spring, the natural frequency of the vibration damping structure can be adjusted accordingly, thus ensuring that the electronic device can still effectively dampen vibration under different operating conditions. When the vibration frequency generated by these fans matches the natural frequency of these vibration damping structures, resonance occurs, resulting in a significant increase in amplitude. The vibration energy generated by these fans can interact with the spring and compression spring of these vibration damping structures along its transmission path. Specifically, the vibration energy of these fans during operation is transmitted along these vibration damping structures. Through the design of the wave-shaped curved part and the compression spring, the spring can effectively absorb vibration energy and convert the vibration energy into the kinetic energy of the spring and compression spring, thereby limiting the vibration generated by these fans during operation to these vibration damping structures to dissipate the vibration energy. Furthermore, through magnetic attraction, these vibration-damping structures can be easily installed in the narrow space between the hard drive and the fans, avoiding obstacles, and are suitable for various chassis sizes. This allows the vibration-damping structures to achieve both low assembly costs and effective vibration reduction.

[0069] Furthermore, compared to general vibration damping structures that only contain a single elastic element and a mass block, the vibration damping structure of this embodiment combines a composite spring, a first mass block, a compression spring, and a second mass block, thus widening the vibration damping frequency band.

[0070] Furthermore, since the housing is equipped with multiple first magnetic components and multiple second magnetic components, these first magnetic components attract the two mounting parts of each of these vibration damping structures, allowing the two mounting parts to be installed in the housing. The two compression springs are positioned on the springs by being attracted to the springs by the two second magnetic components. Therefore, it is unnecessary to use additional fasteners to secure the springs with pre-drilled fastening holes to the housing, nor is it necessary to use other fasteners to position the compression springs on the mounting parts. These vibration damping structures can be easily installed and removed according to actual needs using these first and second magnetic components. This further enhances the flexibility of the vibration damping structures during installation.

[0071] In one embodiment of this application, the vibration reduction structure can be used as a server, which can be used for artificial intelligence (AI) computing, edge computing, or as a 5G server, cloud server, or vehicle networking server.

[0072] Although this application discloses the above embodiments, they are not intended to limit this application. Any person skilled in the art may make some modifications and refinements without departing from the spirit and scope of this application. Therefore, the scope of patent protection of this application shall be determined by the scope of the patent application attached to this specification.

Claims

1. A vibration damping structure, characterized in that, For installation within a housing, the vibration damping structure comprises: A spring clip includes two mounting portions and a bent portion. The two mounting portions are used to mount the spring clip to the housing. The two opposite ends of the bent portion are respectively connected to the two mounting portions. The distance between the middle section of the bent portion and the housing is greater than the distance between the opposite ends of the bent portion and the housing. A first mass block is disposed in the middle section of the curved portion; At least one compression spring, one end of which is disposed on one of the two mounting portions; and At least one second mass block, one end of which is connected to the other end of the at least one compression spring.

2. The vibration reduction structure according to claim 1, characterized in that, The middle section of the curved portion includes an assembly hole, and the first mass block includes an assembly post, which is assembled into the assembly hole.

3. The vibration reduction structure according to claim 2, characterized in that, The curved portion further includes two notches, which are located on opposite sides of the assembly hole.

4. The vibration reduction structure according to claim 1, characterized in that, It also includes at least one magnetic element connected to one end of the at least one compression spring away from the at least one second mass block, so that the vibration damping structure is fixed to the housing by means of the at least one magnetic element for adsorption.

5. The vibration reduction structure according to claim 1, characterized in that, The ratio of the length, width and height of the spring piece is 11:1.5:1, and the thickness of the spring piece is at least 0.3 mm.

6. The vibration reduction structure according to claim 1, characterized in that, Each of the two mounting portions has a length of 13 mm. The curved portion includes a bottom curved surface and a top curved surface facing away from each other. The bottom curved surface is for facing the housing. The radius of curvature of the bottom curved surface is between 21 mm and 22 mm, and the radius of curvature of the top curved surface is between 20 mm and 21 mm.

7. An electronic device comprising: A casing; A hard drive is housed within the chassis. At least one fan is disposed within the housing; and At least one vibration damping structure is located between the hard drive and the at least one fan, the at least one vibration damping structure comprising: A spring clip includes two mounting portions and a bending portion. The two mounting portions are mounted on the housing. The opposite ends of the bending portion are respectively connected to the two mounting portions. The distance between the middle section of the bending portion and the housing is greater than the distance between the opposite ends of the bending portion and the housing. A first mass block is disposed in the middle section of the curved portion; At least one compression spring, one end of which is disposed on one of the two mounting portions; and At least one second mass block, one end of which is connected to the other end of the at least one compression spring.

8. The electronic device according to claim 7, characterized in that, The middle section of the curved portion includes an assembly hole, and the first mass block includes an assembly post, which is assembled into the assembly hole.

9. The electronic device according to claim 7, characterized in that, The housing includes a housing body and a first magnetic component. The first magnetic component is disposed on the housing body. The spring is made of magnetic material, and the first magnetic component attracts the two mounting portions of the spring so that the two mounting portions are mounted on the housing.

10. The electronic device according to claim 9, characterized in that, It also includes at least one second magnetic element, which is connected to one end of the at least one compression spring away from the at least one second mass block, so that the vibration damping structure is fixed to the housing by being attracted to the housing through the at least one second magnetic element.

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