A server silencer and server

Abstract

This invention discloses a server muffler and a server. The server muffler is installed between the server's fan bracket and hard drive backplane. The maximum structural size of the server muffler is less than or equal to the actual space between the fan bracket and the hard drive backplane. The minimum diameter of the muffler's airflow duct is greater than or equal to the minimum airflow duct required by the fan mounted on the fan bracket. The server muffler has recessed slots for the connectors and cables on the hard drive backplane. A sound cavity is located in the non-recessed slot position between the minimum diameter and the maximum structural size. Because the sound cavity is located in the non-recessed slot position between the minimum diameter and the maximum structural size, the actual space between the fan bracket and the hard drive backplane can be fully utilized, the sound cavity can be adapted to the fan airflow duct, and the sound cavity can avoid connectors and cables, ensuring that the sound cavity design meets the limited space requirements and achieving the design of the muffler's sound cavity within a limited space.

Description

Technical Field

[0001] This invention relates to the field of server noise reduction technology, and more specifically, to a server silencer and a server. Background Technology

[0002] With the development of electronic information technology, servers, as a key infrastructure supporting modern data centers, are widely used in various industries. When servers are operating, their electronic components generate considerable heat, affecting server performance; therefore, effective heat dissipation is necessary.

[0003] In related technologies, fan-driven airflow is used to remove heat dissipated by electronic components. However, when the fan rotates at high speed, it generates noise of various frequencies, including aerodynamic noise, electromagnetic noise, and vibration noise. This noise adversely affects the performance of server hard drives, therefore, noise reduction and noise reduction are necessary for server hard drives.

[0004] In related technologies, noise reduction is achieved by installing a silencer between the server fan bracket and the back panel. However, the space originally reserved between the server's fan bracket and the back panel is generally limited, as it is usually for cable routing, making the design of the silencer quite difficult.

[0005] Therefore, how to design a silencer in a space-constrained environment is a problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0006] In view of this, the purpose of the present invention is to provide a server muffler that can be designed in situations where space is relatively limited.

[0007] The purpose of this invention is to provide a server including the aforementioned server muffler, which is adaptable to a limited space.

[0008] To achieve the above objectives, the present invention provides the following technical solution:

[0009] A server muffler is installed between a server's fan bracket and a hard drive backplane. The maximum structural size of the server muffler is less than or equal to the actual space between the fan bracket and the hard drive backplane. The minimum diameter of the muffler's air duct is greater than or equal to the minimum air duct required by the fan mounted on the fan bracket. The server muffler has recessed slots corresponding to the positions of connectors and cables on the hard drive backplane. The server muffler has acoustic chambers located between the minimum diameter and the maximum structural size, at positions other than the recessed slots.

[0010] On one hand, the server silencer includes:

[0011] The body is elongated and has at least two silencer ducts along its length. The portion of the body radially away from the silencer ducts has a sound cavity that is connected to the silencer ducts.

[0012] On the other hand, the duct wall of the muffler duct is the inner wall of the acoustic cavity, and the inner wall has an opening communicating with the muffler duct; the side of the inner wall that is radially away from the muffler duct has an outer wall, and there is a gap between the outer wall and the inner wall; a first partition is provided in the gap so that the space between the inner wall, the outer wall and the first partition forms the acoustic cavity.

[0013] On the other hand, the thicknesses of the inner wall, the outer wall, and the first partition are respectively 1.5~2mm.

[0014] On the other hand, the duct wall of the muffler duct is the inner wall of the acoustic cavity, and the inner wall has an opening communicating with the muffler duct; the side of the inner wall that is radially away from the muffler duct has an outer wall, and there is a gap between the outer wall and the inner wall to form the acoustic cavity.

[0015] At least one of the outer sidewall and the inner sidewall has sound-absorbing cotton on its inner surface facing the gap.

[0016] On the other hand, the acoustic cavities of at least two of the silencer ducts are connected, and the sound-absorbing cotton is an integral sound-absorbing cotton disposed on the inner surface of the cavity wall of the connected acoustic cavity.

[0017] On the other hand, the body has a recessed groove on the side away from its mounting surface corresponding to at least one portion of the muffler duct, the recessed groove extending to the bottom of the body, and the mounting surface facing the fan bracket.

[0018] On the other hand, the body is provided with:

[0019] The first sliding limiting part is used to slide and limit the movement with the second sliding limiting part provided on the fan bracket;

[0020] The first fixing part is used to connect with the second fixing part provided on the fan bracket. When the first sliding limiting part and the second sliding limiting part are slidably engaged in place, the first fixing part and the second fixing part are aligned.

[0021] On the other hand, one of the first sliding limiting part and the second sliding limiting part is a T-shaped groove or a dovetail groove, and the other is a T-shaped protrusion or a dovetail protrusion.

[0022] On the other hand, the first fixing part includes:

[0023] A semi-circular fixing hole is provided at one end of the body away from the first sliding limiting part, and penetrates the body along the thickness direction of the body;

[0024] The first clearance groove communicates with the semi-circular fixing hole and is provided on one side of the body along the thickness direction to avoid the second fixing part;

[0025] The second clearance groove communicates with the semi-circular fixing hole and is located on the side of the body away from the first clearance groove along the thickness direction, to avoid the installation of fasteners that pass through the semi-circular fixing hole.

[0026] On the other hand, the server muffler is mounted on the fan bracket, and the top surface of the server muffler is coplanar with the top surface of the fan bracket.

[0027] On the other hand, the body includes at least two muffler modules and a second partition disposed between any two adjacent muffler modules. The muffler modules and the second partition are assembled by docking along the axial direction of the muffler duct to form at least two acoustic cavities along the axial direction of the muffler duct. Any two adjacent muffler modules are fastened together.

[0028] On the other hand, the hard drive backplate is a mechanical hard drive; the cable is routed from the bottom of the muffler.

[0029] On the other hand, the silencer has weight-reducing holes at positions not corresponding to the acoustic cavity.

[0030] A server, including any of the above-mentioned server mufflers.

[0031] The server silencer provided by this invention has the following beneficial effects:

[0032] The maximum structural dimension of a server muffler is less than or equal to the actual space between the fan bracket and the hard drive backplane. Therefore, the maximum design space available for the muffler can be planned based on the actual space between the server's fan bracket and the hard drive backplane, and this maximum design space serves as the basic dimension for the muffler design. Furthermore, the minimum diameter of the muffler's air duct is greater than or equal to the minimum air duct required by the fan mounted on the fan bracket. That is, the diameter of the muffler's air duct should not be smaller than the minimum air duct required by the fan, so that after the muffler design is completed, the air resistance does not increase or increases by more than 5% compared to a solution without a muffler. Additionally, server noise reduction... The silencer has recessed slots at the locations of the connectors and cables corresponding to the hard drive backplane. In other words, the server silencer eliminates the parts that interfere with the connectors and cables of the hard drive backplane, so as to avoid the connectors and cables of the hard drive backplane interfering with the installation of the silencer. Furthermore, the server silencer has a sound cavity at the location of the non-recessed slot between the minimum aperture and the maximum structural size. This can make full use of the actual space between the fan bracket and the hard drive backplane, and make the sound cavity adapt to the fan air duct. It can also make the sound cavity effectively avoid the connectors and cables of the hard drive backplane. Therefore, it can ensure that the design of the sound cavity meets the conditions of limited space, and realize the design of the silencer sound cavity under limited space.

[0033] The server provided by the present invention includes the server muffler described above, and at least includes the beneficial effects of the server muffler design method described above. Attached Figure Description

[0034] To more clearly illustrate the technical solutions in the embodiments of the present invention or related technologies, the drawings used in the description of the embodiments or related technologies will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0035] Figure 1 A flowchart illustrating the server muffler design method provided in a specific embodiment of the present invention;

[0036] Figure 2 This is a schematic diagram of the server muffler provided in a specific embodiment of the present invention;

[0037] Figure 3 Exploded view of the server muffler, fan bracket, and hard drive backplane before assembly;

[0038] Figure 4 for Figure 2 Another structural diagram from another perspective;

[0039] Figure 5 for Figure 4 A magnified view of part A in the diagram;

[0040] Figure 6 To and Figure 4 The diagram shows the structure of the fan bracket corresponding to the installation location of the server muffler.

[0041] Figure 7 A schematic diagram of the structure when a server muffler is installed on a fan bracket;

[0042] Figure 8 This is a schematic diagram showing the first sliding limit part and the second sliding limit part after they are engaged.

[0043] Figure 9 This is a schematic diagram showing the fastener after it passes through the second clearance groove and is fixed with the semi-circular fixing hole.

[0044] Figure 10 A schematic diagram of a structure that separates the acoustic cavity through the gap between the inner and outer walls using a first partition.

[0045] Figure 11 for Figure 10 The front view;

[0046] Figure 12 A schematic diagram of a structure in which sound-absorbing cotton is provided on the inner surface of the sidewall of the acoustic cavity;

[0047] Figure 13 An exploded view of the two muffler modules before they are assembled with the second partition.

[0048] Figure 14 This is a schematic diagram of the weight reduction hole.

[0049] Figure label:

[0050] 1-Body; 11-Silencer air duct; 12-Acoustic cavity; 121-Inner side wall; 122-Outer side wall; 123-First partition; 124-Opening; 13-Allowing groove; 14-First sliding limit part; 15-First fixing part; 151-Semi-circular fixing hole; 152-First clearance groove; 153-Second clearance groove; 154-Fastener; 16-Silencer module; 17-Second partition; 18-Sound absorbing cotton mounting surface; 19-Weight reduction hole; 2-Fan bracket; 21-Second sliding limit part; 22-Second fixing part; 3-Hard drive backplate; 31-Cable; 32-Connector. Detailed Implementation

[0051] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0052] The core of this invention is to provide a server muffler design method, a server muffler, a server, a server muffler design device, a computer-readable storage medium, and a computer program product, which can realize the design of a muffler in situations where space is relatively limited.

[0053] Please refer to Figure 1 This invention provides a server muffler design method, including steps S1-S4:

[0054] S1: According to the server's fan bracket 2 (e.g.) Figure 3 (as shown) and hard drive backplane 3 (as shown) Figure 3 The actual space between (as shown) is used to determine the maximum design space of the muffler.

[0055] S2: Determine the minimum aperture of the muffler duct 11 of the muffler based on the minimum airflow required for the fan mounted on the fan bracket 2.

[0056] S3: Based on the arrangement of the connector 32 and cable 31 on the hard drive backplane 3, determine the required clearance groove 13 for the muffler (e.g., Figure 2 (as shown in the image)

[0057] S4: Based on the maximum design space, minimum aperture, and the location of the clearance slot 13, design the muffler's acoustic cavity 12 (e.g., Figures 10-12 (As shown).

[0058] In other words, this embodiment of the invention first plans the maximum design space available for the muffler design based on the actual space between the server's fan bracket 2 and the hard drive backplane 3, using this maximum design space as the basic dimension for the muffler design. Furthermore, since the fan duct is one of the most important considerations in the muffler design process, this embodiment of the invention determines the minimum aperture of the muffler duct 11 based on the minimum airflow required by the fan. That is, the aperture of the muffler duct 11 is not smaller than the minimum airflow required by the fan, so that after the muffler design is completed, the air resistance does not increase or increases by more than 5% compared to a solution without a muffler. Additionally, based on the maximum design space of the muffler, the maximum design space of the muffler... Since there may be some overlap between the space and the connector 32 and cable 31 of the hard drive backplane 3, it is necessary to remove the parts that interfere with the connector 32 and cable 31 of the hard drive backplane 3. That is, it is necessary to open the clearance groove 13 at the position of the muffler corresponding to the connector 32 and cable 31 of the hard drive backplane 3 to avoid the connector 32 and cable 31 of the hard drive backplane 3 interfering with the installation of the muffler. Furthermore, after determining the maximum design space of the muffler, the minimum aperture of the muffler air duct 11, and the position of the clearance groove 13 to be opened in the muffler, the sound cavity 12 of the muffler is designed on this basis. The specifications and dimensions of the sound cavity 12 can be determined according to the muffler's target noise reduction frequency, and the design volume of the sound cavity 12 is reserved.

[0059] Therefore, before designing the muffler cavity 12, the present invention first determines the maximum design space of the muffler, the minimum aperture of the muffler air duct 11, and the position of the clearance slot 13 to be opened in the muffler. Based on this, the design of the muffler cavity 12 is carried out. This can make full use of the actual space between the fan bracket 2 and the hard disk backplane 3 during the design process of the muffler cavity 12, adapt to the fan air duct, and effectively avoid the connector 32 and cable 31 of the hard disk backplane 3. Therefore, it can ensure that the design of the muffler cavity 12 meets the conditions of limited space, and realize the design of the muffler cavity 12 under limited space.

[0060] Additionally, in some embodiments, before designing the muffler's acoustic cavity 12 based on the muffler's maximum design space, the minimum aperture of the muffler duct 11, and the location of the muffler's recess 13, the server muffler design method further includes:

[0061] Determine the installation location of the muffler based on the installation position of the fan bracket 2;

[0062] Based on the maximum design space, minimum aperture, and position of the clearance groove 13 of the muffler, the acoustic cavity 12 of the muffler is designed, including:

[0063] Based on the maximum design space, the minimum aperture of the silencer duct 11, the position and installation location of the silencer recess 13, the sound cavity 12 of the silencer is designed.

[0064] In other words, in this embodiment, before designing the muffler cavity 12, the installation position of the muffler is first determined according to the installation position of the fan bracket 2. That is, after the installation position of the muffler is determined, the design of the muffler cavity 12 is carried out. This means that when designing the muffler cavity 12, the size of the muffler installation position needs to be discarded to avoid the muffler cavity 12 and the muffler installation position from overlapping.

[0065] Of course, in other embodiments, the design of the muffler cavity 12 can be carried out first, and after the design of the cavity 12 is completed, the muffler installation part can be designed at the location where the muffler avoids the cavity 12.

[0066] Further, please refer to Figures 4-9 In some embodiments, the installation location of the muffler is determined based on the installation position of the fan bracket 2, including:

[0067] The mounting portion includes a first sliding limit part 14 and a first fixing part 15. The first sliding limit part 14 is located at the top of the muffler and is used to slide relative to the second sliding limit part 21 on the fan bracket 2. The first fixing part 15 is located at the bottom of the muffler and is used to align and connect with the second fixing part 22 of the fan bracket 2 when the first sliding limit part 14 slides into position relative to the second sliding limit part 21.

[0068] In other words, in the design of the muffler mounting location in this embodiment, a first sliding limiting part 14 and a first fixing part 15 are respectively provided at the top and bottom of the muffler. Correspondingly, a second sliding limiting part 21 corresponding to the first sliding limiting part 14 is provided on the fan bracket 2, and a second fixing part 22 corresponding to the first fixing part 15 is provided on the fan bracket 2. With this muffler mounting structure, when installing the muffler, the first sliding limiting part 14 and the second sliding limiting part 21 are first aligned, the first sliding limiting part 14 is inserted into the second sliding limiting part 21, and the first sliding limiting part 14 slides relative to the second sliding limiting part 21, allowing the muffler to slide into place. At this time, the first fixing part 15 and the second fixing part 22 are aligned, enabling the connection between the first fixing part 15 and the second fixing part 22. For example, the first fixing part 15 and the second fixing part 22 can be connected by a fastener 154. As can be seen, this embodiment utilizes the cooperation of the first sliding limiting part 14 and the first fixing part 15 to achieve the installation and fixing of the muffler, thereby realizing the semi-tool-free installation of the muffler, which helps to simplify the installation steps of the muffler and save fasteners 154.

[0069] In addition, in some embodiments, the installation location of the muffler is determined according to the installation position of the fan bracket 2, including:

[0070] After the muffler is installed in place on the fan bracket 2, the top surface of the muffler should be coplanar with the top surface of the fan bracket 2 (e.g., ...). Figure 7 (As shown).

[0071] In other words, the design of the muffler's installation location must ensure that after the muffler is installed, the top surface of the muffler is coplanar with the top surface of the fan bracket 2. That is, after the muffler is installed, the top of the muffler is flush with the top of the fan bracket 2. This way, the maximum design space of the muffler can be utilized to the greatest extent.

[0072] Additionally, in some embodiments, the maximum design space of the muffler is determined based on the actual space between the server's fan bracket 2 and the hard drive backplane 3, including:

[0073] Using the plane of the side of the fan bracket 2 used to mount the muffler as a reference plane, the actual space between the fan bracket 2 and the hard drive backplate 3 is evaluated.

[0074] In other words, when determining the actual space between the fan bracket 2 and the hard drive backplate 3, the plane of the fan bracket 2 used to install the muffler is used as the reference plane to determine the actual space between the fan bracket 2 and the hard drive backplate 3. Then, the maximum design space of the muffler is determined based on this actual space to ensure that after the muffler is installed on the fan bracket 2, there is a good sealing performance between the muffler and the end face of the fan air duct, which is conducive to achieving maximum noise reduction.

[0075] In addition, in some embodiments, the location of the clearance groove 13 to be opened in the muffler is determined according to the arrangement of the connector 32 and the cable 31 on the hard disk backplane 3, including: the hard disk backplane 3 is a mechanical hard disk; the cable 31 is routed from the bottom of the muffler; the location of the clearance groove 13 to be opened at the bottom of the muffler is determined according to the location of the cable 31 routed from the bottom of the muffler.

[0076] In other words, the obstruction of the muffler to the connector 32 and cable 31 of the hard drive backplane 3 in this embodiment is limited to the configuration of the mechanical hard drive, and the main consideration is to avoid the cable 31 running from the bottom of the muffler. This helps to simplify the design of the muffler cavity 12 and facilitates the layout of the muffler cavity 12.

[0077] Further, please refer to Figure 10 and Figure 11 In some embodiments, the muffler's acoustic cavity 12 is designed based on the muffler's maximum design space, the muffler duct 11's minimum aperture, and the muffler's clearance slot 13, including:

[0078] The wall of the silencer duct 11 is used as the inner wall 121 of the acoustic cavity 12;

[0079] An outer wall 122 is provided on the side of the inner wall 121 that is radially away from the silencer duct 11, and there is a gap between the outer wall 122 and the inner wall 121.

[0080] A first partition 123 is provided in the gap between the outer side wall 122 and the inner side wall 121, so that the space between the inner side wall 121, the outer side wall 122 and the first partition 123 forms a sound cavity 12.

[0081] An opening 124 is made in the inner wall 121 to communicate with the silencer duct 11.

[0082] In other words, this embodiment provides an outer wall 122 with a gap between it and the inner wall 121 on the radially outer side of the muffler duct 11, and divides the gap between the inner wall 121 and the outer wall 122 into at least one cavity space by a first partition 123, so that at least one acoustic cavity 12 is distributed along the circumferential direction of the muffler duct 11. An opening 124 penetrating the wall thickness of the inner wall 121 is provided, allowing the acoustic cavity 12 to communicate with the muffler duct 11. Thus, when the cooling airflow passes through the muffler duct 11, noise can enter the acoustic cavity 12 through the opening 124, and the acoustic cavity 12 absorbs the noise, achieving the purpose of noise reduction. It is understood that by designing the size of the opening 124 and the volume of the acoustic cavity 12 according to the target frequency to be eliminated by the muffler, the acoustic cavity 12 can be designed for the target frequency, achieving noise reduction at the target frequency. The specific dimensions of the muffler acoustic cavity 12 can be referenced in relevant technologies, and will not be elaborated further in this article.

[0083] It is understandable that the first partition 123 serves not only to separate the sound cavity 12, but also to enhance the structural strength. In other words, the first partition 123 is equivalent to a reinforcing rib, which can ensure the structural strength of the muffler.

[0084] In addition, it should be noted that this embodiment does not limit the specific thickness of the inner wall 121, the outer wall 122 and the first partition 123.

[0085] In some embodiments, the thicknesses of the inner sidewall 121, the outer sidewall 122, and the first partition 123 range from 1.5 to 2 mm.

[0086] In other words, the inventors of this application have discovered that when the thicknesses of the inner wall 121, the outer wall 122, and the first partition 123 are in the range of 1.5~2mm, the acoustic cavity 12 can have a better sound absorption effect. At the same time, it ensures that the inner wall 121, the outer wall 122, and the first partition 123 have appropriate wall thicknesses, avoiding excessive thickness of the inner wall 121, the outer wall 122, and the first partition 123, which would result in large structural size and weight. In addition, it avoids excessive thinness of the inner wall 121, the outer wall 122, and the first partition 123, which would result in insufficient structural strength and rigidity.

[0087] In other embodiments, the muffler's acoustic cavity 12 is designed based on the muffler's maximum design space, the muffler duct 11's minimum aperture, and the muffler's clearance slot 13, including:

[0088] The wall of the silencer duct 11 is used as the inner wall 121 of the acoustic cavity 12;

[0089] An outer wall 122 is provided on the side of the inner wall 121 that is radially away from the silencer duct 11, and there is a gap between the outer wall 122 and the inner wall 121 to form a sound cavity 12.

[0090] At least one of the outer sidewall 122 and the inner sidewall 121 is provided with sound-absorbing cotton on the inner surface facing the gap; such as Figure 12 As shown, the inner surface of the side wall of the acoustic cavity 12 is the sound-absorbing cotton mounting surface 18. The sound-absorbing cotton can be installed by attaching it to the sound-absorbing cotton mounting surface 18.

[0091] An opening 124 is made in the inner wall 121 to communicate with the silencer duct 11.

[0092] In other words, this embodiment provides sound-absorbing cotton on the inner surface of the outer sidewall 122 and / or inner sidewall 121 of the acoustic cavity 12 towards the gap between the outer sidewall 122 and the inner sidewall 121. By utilizing the combined effect of the sound-absorbing cotton and the acoustic cavity 12, the superposition and optimization of the sound-absorbing effect are achieved, thereby improving the sound-absorbing and noise-reducing effect.

[0093] Understandably, compared to the solution of simply setting up the sound cavity 12, the solution of setting sound-absorbing cotton on the outer wall 122 and / or inner wall 121 of the sound cavity 12 allows the inner diameter of the outer wall 122 of the silencer to be appropriately increased by 4~8mm to facilitate the filling of the sound-absorbing cotton.

[0094] It should be noted that, in order to facilitate the installation of sound-absorbing cotton, the first partition 123 installed in the gap between the outer side wall 122 and the inner side wall 121 can be removed, so that the gap between the outer side wall 122 and the inner side wall 121 forms an integral acoustic cavity 12.

[0095] Furthermore, in some embodiments, sound-absorbing cotton is provided on the inner surface of at least one of the outer sidewall 122 and the inner sidewall 121 facing the gap between the outer sidewall 122 and the inner sidewall 121, including: the number of silencer ducts 11 is at least two, each silencer duct 11 corresponds to a sound cavity 12, the sound cavities 12 corresponding to at least two silencer ducts 11 are connected, and the sound-absorbing cotton is an integral sound-absorbing cotton provided on the inner surface of the outer sidewall 122 of the connected sound cavity 12.

[0096] In other words, this embodiment eliminates the partition plate between the acoustic cavities 12 corresponding to different muffler channels, thereby connecting the acoustic cavities 12 corresponding to at least two muffler air ducts 11, so that at least two muffler air ducts 11 share the same integral acoustic cavity 12, which facilitates the installation of sound-absorbing cotton.

[0097] Additionally, please refer to Figure 14 In some embodiments, after designing the muffler's acoustic cavity 12 based on the muffler's maximum design space, the minimum aperture of the muffler duct 11, and the position of the muffler's clearance slot 13, the method further includes:

[0098] Weight reduction holes 19 are provided at positions of the muffler that are not corresponding to the acoustic cavity 12.

[0099] In other words, after the design of the muffler's acoustic cavity 12 is completed, the muffler is designed to reduce its weight by removing unnecessary and excess materials to reduce the overall weight of the muffler.

[0100] This embodiment does not limit the specific distribution and number of the weight reduction holes 19.

[0101] In addition, due to the complex structure of the muffler, after the structural design of the muffler is completed, the mass production process of the muffler also needs to be designed in order to facilitate simple mold production.

[0102] Please refer to Figure 13 In some embodiments, after designing the muffler's acoustic cavity 12 based on the muffler's maximum design space, the minimum aperture of the muffler duct 11, and the position of the muffler's clearance slot 13, the method further includes:

[0103] At least two acoustic cavities 12 are provided along the axial direction of the silencer duct 11;

[0104] The acoustic cavity 12 corresponding to the axial direction of the muffler duct 11 is taken as a complete connected acoustic cavity 12. The muffler is cut along the axial direction perpendicular to the muffler duct 11 to form at least two muffler modules 16.

[0105] A second partition 17 is provided between two adjacent muffler modules 16 to close the cut ends of the acoustic cavity 12 of the muffler module 16 on both sides of the second partition 17.

[0106] Connect two adjacent muffler modules 16 together.

[0107] In other words, this embodiment provides a method for implementing a split-type muffler structure and a corresponding assembly method. Specifically, the acoustic cavity 12 corresponding to the axial direction of the muffler duct 11 is first designed and manufactured as a single, continuous acoustic cavity 12. Then, the muffler is cut along a direction perpendicular to the axis of the muffler duct 11 to form at least two muffler modules 16. This divides the continuous, continuous acoustic cavity 12 into at least two acoustic cavities 12 along the axial direction of the muffler duct 11. Finally, the modules are assembled in any two adjacent mufflers... A second partition 17 is provided between the muffler modules 16 to separate the two cut acoustic cavities 12. By interlocking two adjacent muffler modules 16, an integral muffler is formed. At this time, the complete acoustic cavities 12 that were connected before cutting become at least two independent acoustic cavities 12 along the axial direction of the muffler duct 11 due to the action of the second partition 17. Thus, a multi-cavity design 12 along the axial direction of the muffler duct 11 is realized, which is beneficial for noise reduction of multiple different frequencies.

[0108] Furthermore, it should be noted that the specific design method for the acoustic cavity parameters in this embodiment of the invention is not limited. The focus of this invention is to determine the design space of the acoustic cavity before designing the acoustic cavity parameters, so as to ensure that the acoustic cavity design can be satisfied within a limited space. In some embodiments, when designing the acoustic cavity 12 of the muffler, the target frequency of the noise absorbed by the acoustic cavity 12 is obtained; and the frequency correction coefficient is determined; the correction frequency is obtained according to the frequency correction coefficient and the target frequency; and the parameters of the acoustic cavity 12 are designed according to the correction frequency.

[0109] In other words, in this embodiment, when designing the muffler cavity 12, the target frequency of the noise to be absorbed by the cavity 12 is first corrected using a frequency correction coefficient. Then, the cavity 12 is designed using the corrected frequency, so that the frequency of the noise that the designed cavity 12 can actually eliminate is consistent with the target frequency. That is, through this method, the muffler cavity 12 can correspond to the target frequency to be eliminated, thereby achieving a better noise reduction effect and avoiding the deviation between the noise reduction effect of the muffler cavity 12 designed directly based on the target frequency and the target frequency.

[0110] It should be noted that this embodiment does not limit the specific method for determining the frequency correction coefficient, which can be obtained by those skilled in the art through repeated experiments. The inventors of this application have found that the magnitude of the frequency correction coefficient is related to the distance from the wall of the opening 124 of the acoustic cavity 12 to the end of the silencer duct 11, the number of acoustic cavities 12, and the arrangement of the acoustic cavities 12. In some embodiments, the value range of the frequency correction coefficient is 1.2 to 3.

[0111] Furthermore, in some embodiments, before designing the parameters of the acoustic cavity 12 according to the correction frequency, the following steps are also included:

[0112] To obtain the target amplitude for noise cancellation in acoustic cavity 12;

[0113] Obtain the target bandwidth for noise absorption by acoustic cavity 12;

[0114] Based on the correction frequency, the parameters of acoustic cavity 12 are designed, including:

[0115] The parameters of acoustic cavity 12 are designed based on the correction frequency, frequency correction coefficient, target amplitude, and target bandwidth.

[0116] In other words, in designing the parameters of the acoustic cavity 12, this embodiment considers the target amplitude and target bandwidth as design targets. Simultaneously, it uses a correction frequency to correct the target amplitude and target bandwidth, and combines this with the correction frequency obtained in the previous embodiment to jointly determine the parameters of the acoustic cavity 12. It can be seen that the silencer acoustic cavity 12 obtained by this embodiment can be applied to specific frequency bands, has a wide range of applications, and strong versatility.

[0117] In addition to the server muffler design method described above, this embodiment of the invention also provides a server muffler, which is obtained according to the server muffler design method disclosed in any of the above embodiments. That is, the server muffler is installed between the fan bracket 2 and the hard disk backplane 3 of the server. The maximum structural size of the server muffler is less than or equal to the actual space between the fan bracket 2 and the hard disk backplane 3. The minimum aperture of the muffler air duct 11 of the server muffler is greater than or equal to the minimum air duct required by the fan installed on the fan bracket 2. The server muffler is provided with a clearance groove 13 at the position corresponding to the connector 32 and cable 31 of the hard disk backplane 3. The server muffler is provided with a sound cavity 12 at the position between the minimum aperture and the maximum structural size, in the position not of the clearance groove 13.

[0118] It is understood that since the server muffler is obtained according to the server muffler design method disclosed in any of the above embodiments, the server muffler at least includes the beneficial effects of the server muffler design method disclosed in the above embodiments, which will not be repeated here.

[0119] In some embodiments, the server silencer includes a body 1, which is elongated and has at least two silencer ducts 11 along its length. The portion of the body 1 that is radially away from the silencer ducts 11 has a sound cavity 12 that is correspondingly connected to the silencer ducts 11.

[0120] In other words, the server muffler in this embodiment includes at least two muffler ducts 11, corresponding to the ducts of at least two fans on the fan bracket 2, so that the server muffler has a multi-cell structure, and all the muffler ducts 11 are arranged along the length of the elongated body 1, forming an integrated structure, which is conducive to the integration of the multi-cell structure and the overall assembly and disassembly.

[0121] It should be noted that this embodiment does not limit the specific method of forming the acoustic cavity 12, and the method of forming the silencer acoustic cavity 12 described above can be referred to.

[0122] For example, in some embodiments, the duct wall of the muffler duct 11 is the inner wall 121 of the acoustic cavity 12, and the inner wall 121 is provided with an opening 124 communicating with the muffler duct 11; an outer wall 122 is provided on the side of the inner wall 121 that is radially away from the muffler duct 11, and there is a gap between the outer wall 122 and the inner wall 121; a first partition 123 is provided in the gap so that the space between the inner wall 121, the outer wall 122 and the first partition 123 forms the acoustic cavity 12.

[0123] In other embodiments, the duct wall of the muffler duct 11 is the inner wall 121 of the sound cavity 12, and the inner wall 121 is provided with an opening 124 communicating with the muffler duct 11; an outer wall 122 is provided on the side of the inner wall 121 that is radially away from the muffler duct 11, and there is a gap between the outer wall 122 and the inner wall 121 to form the sound cavity 12; at least one of the outer wall 122 and the inner wall 121 is provided with sound-absorbing cotton on the inner surface facing the gap between the outer wall 122 and the inner wall 121.

[0124] Furthermore, in some embodiments, the acoustic cavities 12 of at least two silencer ducts 11 are connected, and the sound-absorbing cotton is an integral sound-absorbing cotton disposed on the inner surface of the cavity wall of the connected acoustic cavity 12.

[0125] In other words, this embodiment uses sound-absorbing cotton on the inner surface of the cavity wall of the acoustic cavity 12 to achieve superimposed optimization of the sound absorption effect by utilizing the sound-absorbing cotton and the acoustic cavity 12 together, thereby improving the noise reduction capability of the server silencer; moreover, by connecting the acoustic cavities 12 of at least two silencer ducts 11, the acoustic cavities 12 corresponding to at least two silencer ducts 11 form an integral acoustic cavity 12, which facilitates the installation of sound-absorbing cotton.

[0126] It should be noted that this embodiment does not limit the specific thickness of the sound-absorbing cotton. In some embodiments, the thickness of the sound-absorbing cotton ranges from 2 to 6 mm. For example, in some embodiments, the thickness of the sound-absorbing cotton is 4 mm.

[0127] In addition, in order to avoid the connector 32 and cable 31 of the hard disk backplane 3, in some embodiments, the body 1 is provided with a relief groove 13 on the side away from its mounting surface corresponding to at least one muffler air duct 11. The relief groove 13 extends to the bottom of the body 1, and the mounting surface is used to face the fan bracket 2 of the server.

[0128] In other words, in this embodiment, by setting a clearance groove 13 on the side of the main body 1 away from its mounting surface and at the bottom of the main body 1, and at the position corresponding to the silencer air duct 11, the connector 32 and cable 31 of the hard disk backplane 3 are avoided, which is beneficial to lay out the connector 32 and cable 31 of the hard disk backplane 3 from the bottom of the server silencer, which is convenient for layout.

[0129] In addition, to facilitate the installation of the server muffler and the fan bracket 2, in some embodiments, the main body 1 is provided with a first sliding limit part 14 and a first fixing part 15. The first sliding limit part 14 is used to slide and limit the second sliding limit part 21 provided on the fan bracket 2 of the server; the first fixing part 15 is used to connect with the second fixing part 22 provided on the fan bracket 2. When the first sliding limit part 14 and the second sliding limit part 21 slide and engage in place, the first fixing part 15 and the second fixing part 22 are aligned.

[0130] As can be seen from the above description of determining the installation location of the muffler, this embodiment utilizes the cooperation of the first sliding limit part 14 and the first fixing part 15 to achieve the installation and fixing of the server muffler. This enables semi-tool-free installation of the server muffler, which simplifies the installation steps, saves fasteners 154, and facilitates installation.

[0131] Furthermore, this embodiment does not limit the specific structure of the first sliding limit part 14 and the first fixing part 15, as long as the above-mentioned installation method of the server muffler can be achieved.

[0132] In some embodiments, one of the first sliding limiting portion 14 and the second sliding limiting portion 21 is a T-shaped groove or a dovetail groove, and the other is a T-shaped protrusion or a dovetail protrusion.

[0133] Understandably, the T-slot or dovetail groove extends to the top end face of the body 1, forming an open groove. This facilitates the entry of the T-shaped or dovetail protrusion into the T-slot or dovetail groove, thereby achieving relative sliding between the T-slot and the T-shaped or dovetail protrusion. Furthermore, it is understood that when the server muffler slides into position, the T-slot engaging with the T-shaped protrusion, or the dovetail groove engaging with the dovetail protrusion, can provide a limiting effect on the body 1 along a direction perpendicular to its thickness.

[0134] In some embodiments, the first fixing part 15 includes a semi-circular fixing hole 151, a first clearance groove 152, and a second clearance groove 153. The semi-circular fixing hole 151 is located at one end of the body 1 away from the first sliding limiting part 14 and extends through the body 1 along its thickness direction. The first clearance groove 152 communicates with the semi-circular fixing hole 151 and is located on one side of the body 1 along its thickness direction. The first clearance groove 152 is used to avoid the second fixing part 22. The second clearance groove 153 communicates with the semi-circular fixing hole 151 and is located on the side of the body 1 away from the first clearance groove 152 along its thickness direction. The second clearance groove 153 is used to avoid the installation of the fastener 154 that passes through the semi-circular fixing hole 151.

[0135] In other words, in this embodiment, the fastener 154 is fixed to the fan bracket 2 by passing through the semi-circular fixing hole 151. The fastener 154 may include a head pressed against one end of the semi-circular fixing hole 151. The second clearance groove 153 can avoid the installation of the fastener 154 so that the fastener 154 can pass through the second clearance groove 153 and then through the semi-circular fixing hole 151. In addition, the first clearance groove 152 avoids the second fixing part 22 on the fan bracket 2. For example, the second fixing part 22 may be a rivet nut. The rivet nut is located in the first clearance groove 152 so that the fastener 154 can be connected to the rivet nut after passing through the semi-circular fixing hole 151.

[0136] It should be noted that the specific shapes of the first clearance groove 152 and the second clearance groove 153 are not limited in this embodiment, as long as the first clearance groove 152 can avoid the second fixing part 22 and the second clearance groove 153 can avoid the installation of the fastener 154. In some embodiments, the first clearance groove 152 is a U-shaped groove and the second clearance groove 153 is a semi-circular groove.

[0137] In some embodiments, the body 1 includes at least two muffler modules 16 and a second partition 17 disposed between any two adjacent muffler modules 16. The muffler modules 16 and the second partition 17 are assembled together along the axial direction of the muffler duct 11 to form at least two acoustic cavities 12 along the axial direction of the muffler duct 11. Any two adjacent muffler modules 16 are fastened together.

[0138] It is understood that this structure corresponds to the split structure implementation method and corresponding assembly method of the server muffler described above. At least two muffler modules 16 are provided with a second partition 17. The second partition 17 is used to close the acoustic cavity 12 of two adjacent muffler modules 16 on the side facing the second partition 17, so as to form an acoustic cavity 12 structure with only an opening 124. This is beneficial to forming the muffler module 16 by cutting along the direction perpendicular to the muffler air duct 11, and then forming two or more acoustic cavities 12 along the axial direction of the muffler air duct 11. This is beneficial to realize the low-cost mass production of the cavity part of the acoustic cavity 12. Moreover, by designing different acoustic cavity 12 parameters, multiple acoustic cavity 12 designs with different silencing frequencies can be realized.

[0139] Furthermore, in some embodiments, the body 1 is provided with weight reduction holes 19.

[0140] It should be noted that this embodiment does not limit the specific location, shape and number of the weight reduction holes 19, as long as the design of the weight reduction holes 19 can be realized.

[0141] In addition to the server muffler design method and server muffler described above, embodiments of the present invention also provide a server that includes the server muffler disclosed in any of the above embodiments. Furthermore, the structure of other parts of the server is not limited; please refer to related technologies for the structure of other parts of the server, which will not be elaborated upon herein.

[0142] The key point of this embodiment is that the server uses the server muffler disclosed in any of the above embodiments, and at least includes the beneficial effects of the server muffler.

[0143] Corresponding to the above embodiment of the server muffler design method, this embodiment of the invention also provides a server muffler design device, which includes:

[0144] Memory, used to store computer programs;

[0145] A processor is configured to execute the computer program to implement the steps of the server muffler design method disclosed in any of the above embodiments.

[0146] For an introduction to the server muffler design device provided by this invention, please refer to the embodiments of the server muffler design method described above. This invention will not be elaborated upon here.

[0147] Corresponding to the above embodiments of the server muffler design method, this embodiment of the invention also provides a computer-readable storage medium storing a computer program, which, when executed by a processor, implements the steps of the server muffler design method disclosed in any of the above embodiments.

[0148] The computer-readable storage medium may include various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0149] For a description of the computer-readable storage medium provided by this invention, please refer to the above-described embodiment of the server muffler design method; the invention will not be described in detail here.

[0150] Corresponding to the above embodiments of the server muffler design method, this embodiment of the invention also provides a computer program product, including a computer program / instructions, which, when executed by a processor, implement the steps of the server muffler design method disclosed in any of the above embodiments.

[0151] It should also be noted that, in this specification, relational terms such as first and second are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations.

[0152] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0153] The server muffler design method, server muffler, and server provided by this invention have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this invention. The descriptions of the embodiments above are only for the purpose of helping to understand the method and core ideas of this invention. It should be noted that those skilled in the art can make several improvements and modifications to this invention without departing from the principles of this invention, and these improvements and modifications also fall within the protection scope of this invention.

Claims

1. A server silencer, characterized by, The server silencer is installed between a fan support (2) and a hard disk backboard (3) of a server, a maximum structural size of the server silencer is less than or equal to an actual space between the fan support (2) and the hard disk backboard (3), a minimum aperture of a silencer air duct (11) of the server silencer is greater than or equal to a minimum air duct required by a fan installed on the fan support (2), the server silencer is provided with a position avoiding slot (13) corresponding to a position of a connector (32) and a cable (31) of the hard disk backboard (3), and a sound cavity (12) is provided at a position between the minimum aperture and the maximum structural size and excluding the position of the position avoiding slot (13); The server silencer is installed on the fan support (2); The server silencer comprises a body (1) provided with at least two silencer air ducts (11) along a length direction thereof; A part of the body (1) radially away from the silencer air duct (11) is provided with the sound cavity (12) in communication with the silencer air duct (11); The sound cavities (12) of the at least two silencer air ducts (11) are in communication; The body (1) comprises at least two silencer modules (16) and a second partition plate (17) provided between any two adjacent silencer modules (16), the second partition plate (17) is used for closing the sound cavities (12) of the adjacent two silencer modules (16); the silencer module (16) is formed in a manner that the sound cavities (12) corresponding to the silencer air duct (11) in an axial direction are taken as a complete sound cavity in communication, the silencer is cut in a direction perpendicular to an axis of the silencer air duct (11) to form the at least two silencer modules (16); the second partition plate (17) closes cutting ends of the sound cavities (12) of the silencer modules (16) on both sides thereof; and the adjacent two silencer modules (16) are engaged with each other; When the sound cavity (12) is designed, a target frequency and a target bandwidth for absorbing noise by the sound cavity (12) are obtained; A frequency correction coefficient is determined, a correction frequency is obtained according to the frequency correction coefficient and the target frequency, a target amplitude of noise to be eliminated by the sound cavity (12) is obtained, and the sound cavity (12) is designed according to the correction frequency, the frequency correction coefficient, the target amplitude and the target bandwidth, so that a frequency of noise actually able to be eliminated by the designed sound cavity (12) is consistent with the target frequency.

2. The server silencer of claim 1, wherein The body (1) is in a strip shape.

3. The server silencer of claim 2, wherein, The sound channel wall of the muffler sound channel (11) is the inner side wall (121) of the sound cavity (12), the inner side wall (121) is provided with an opening (124) in communication with the muffler sound channel (11); the side of the inner side wall (121) radially away from the muffler sound channel (11) is provided with an outer side wall (122), and the outer side wall (122) and the inner side wall (121) have a gap therebetween; the gap is provided with a first partition plate (123), so that the space between the inner side wall (121), the outer side wall (122) and the first partition plate (123) forms the sound cavity (12).

4. The server silencer of claim 3, wherein The thickness of the inner side wall (121), the outer side wall (122) and the first partition plate (123) ranges from 1.5 to 2 mm.

5. The server silencer of claim 2, wherein The sound channel wall of the muffler sound channel (11) is the inner side wall (121) of the sound cavity (12), the inner side wall (121) is provided with an opening (124) in communication with the muffler sound channel (11); the side of the inner side wall (121) radially away from the muffler sound channel (11) is provided with an outer side wall (122), and the outer side wall (122) and the inner side wall (121) have a gap therebetween; the gap is provided with a first partition plate (123), so that the space between the inner side wall (121), the outer side wall (122) and the first partition plate (123) forms the sound cavity (12); At least one of the outer side wall (122) and the inner side wall (121) is provided with sound-absorbing cotton on the inner surface facing the gap.

6. The server silencer of claim 5, wherein, The sound-absorbing cotton is an integrated sound-absorbing cotton provided on the inner surface of the cavity wall of the sound cavity (12) in communication.

7. The server silencer of any of claims 2-6, wherein, The body (1) is provided with an avoiding slot (13) corresponding to at least one part of the muffler sound channel (11) away from the mounting surface thereof, the avoiding slot (13) extends to the bottom of the body (1), and the mounting surface is used for facing the fan bracket (2).

8. The server silencer of any one of claims 2-6, wherein, The body (1) is provided with: A first sliding limiting part (14) for sliding and limiting with a second sliding limiting part (21) provided on the fan bracket (2); A first fixing part (15) for connecting with a second fixing part (22) provided on the fan bracket (2), when the first sliding limiting part (14) and the second sliding limiting part (21) are slidingly and limitingly in place, the first fixing part (15) is aligned with the second fixing part (22).

9. The server silencer of claim 8, wherein, One of the first sliding limiting part (14) and the second sliding limiting part (21) is a T-shaped slot or a dovetail slot, and the other is a T-shaped protruding part or a dovetail-shaped protruding part.

10. The server silencer of claim 8, wherein, The first fixing part (15) comprises: A semicircular fixing hole (151) provided at one end of the body (1) away from the first sliding limiting part (14) and penetrating through the body (1) along the thickness direction of the body (1); A first avoiding slot (152) in communication with the semicircular fixing hole (151) and provided on one side of the body (1) along the thickness direction, for avoiding the second fixing part (22); A second displacement slot (153) is in communication with the semicircular fixing hole (151) and is arranged on the side of the body (1) away from the first displacement slot (152) along the thickness direction, for avoiding the installation of the fastener (154) arranged in the semicircular fixing hole (151).

11. The server silencer of any one of claims 1-6, wherein, The top surface of the server silencer is coplanar with the top surface of the fan bracket (2).

12. The server silencer of any one of claims 2-6, wherein, The silencer module (16) and the second partition (17) are assembled in abutment along the axial direction of the silencer air duct (11) to form at least two sound cavities (12) along the axial direction of the silencer air duct (11), and any two adjacent silencer modules (16) are connected in snap fit.

13. The server silencer of any one of claims 1-6, wherein, The hard disk backboard (3) is a mechanical hard disk; and the cable (31) is routed from the bottom of the silencer.

14. The server silencer of any one of claims 1-6, wherein, The silencer is provided with a lightening hole (19) at a position not corresponding to the sound cavity (12).

15. A server, characterized by The server silencer comprises the server silencer according to any one of claims 1-14. The server silencer comprises the server silencer according to any one of claims 1-14.

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