CN116658467A

CN116658467A - Sound-deadening structure and server

Info

Publication number: CN116658467A
Application number: CN202310774350.2A
Authority: CN
Inventors: 林祖成; 耿晨亮; 胡海龙
Original assignee: Lenovo Beijing Ltd
Current assignee: Lenovo Beijing Ltd
Priority date: 2023-06-28
Filing date: 2023-06-28
Publication date: 2023-08-29

Abstract

The application discloses a silencing structure and a server, wherein the silencing structure comprises a shell 10, and the shell 10 forms a silencing cavity with an open first side; the cover plate 20 is arranged on the first side, and at least one first hole is formed in the cover plate 20 so that the silencing cavity is communicated with the outside; the sliding cover plate 30, the sliding cover plate 30 covers the cover plate 20 and can move along the extending direction of the side edge of the cover plate 20, a second hole matched with the first hole on the cover plate 20 is arranged on the sliding cover plate 30, and when the sliding cover plate 30 moves to different positions, the second hole can completely cover, partially cover or not cover the first hole. In the application process, the open area of the cover plate can be changed by sliding the sliding cover plate to change the position of the sliding cover plate, so that the noise elimination structure can absorb noise with specific frequency by controlling the open area of the cover plate, and the environmental noise is improved.

Description

Sound-deadening structure and server

Technical Field

The application relates to the technical field of servers, in particular to a sound attenuation structure and a server.

Background

With the increase of server power, in order to meet the heat dissipation requirement, the rotation speed of the system fan is also higher and higher, so that the problem of fan noise is also more and more serious. The mechanical hard disk is sensitive to external vibration and noise because the information is written and read by the high-speed motion of the magnetic head relative to the magnetic disk, and the excessive vibration or noise can lead to the linear reduction of the read-write speed of the mechanical hard disk. Therefore, it is necessary to suppress the fan noise to ensure the read-write performance of the hard disk.

Disclosure of Invention

In view of this, the present application provides the following technical solutions:

a sound attenuating structure comprising:

a housing 10, said housing 10 forming a sound-damping cavity with a first side open;

the cover plate 20 is arranged on the first side, and at least one first hole is formed in the cover plate 20 so that the silencing cavity is communicated with the outside;

the sliding cover plate 30 is covered on the cover plate 20, and can move along the extending direction of the side edge of the cover plate 20, and a second hole matched with the first hole on the cover plate 20 is arranged on the sliding cover plate 30, and when the sliding cover plate 30 moves to different positions, the second hole can completely cover, partially cover or not cover the first hole.

Optionally, the method further comprises:

at least one baffle 40, baffle 40 sets up in the noise elimination cavity is inside for with the noise elimination cavity is divided into two at least sound elimination son cavitys.

Optionally, an independent sliding cover plate 30 covers the cover plate area corresponding to each silencing sub-cavity, and the size of the sliding cover plate 30 is smaller than that of the cover plate area corresponding to the silencing sub-cavity.

Optionally, the physical properties of the first holes provided on the cover plate area corresponding to each of the phonon-eliminating cavities are the same or different, and at least one of the following different characterizations is different: shape, size, and number.

Alternatively, the partition 40 may be a detachable partition, and the insertion or extraction may be performed based on a guide groove structure provided inside the housing.

Optionally, the silencing cavity formed by the shell 10 is a cavity in a cuboid shape.

Optionally, the first hole and the second hole are both circular holes, and the second hole is the same size as the first hole.

Optionally, the number of the second holes on the sliding cover 30 is smaller than the number of the first holes on the cover 20.

Optionally, the method further comprises:

and the cover plate locking mechanism is used for locking the cover plate 20 and preventing the cover plate 20 from moving or falling off relative to the shell 10.

The application also discloses a server, which comprises:

the fan structure is used for radiating the heat of the server;

the hard disk is used for storing working data of the server;

the sound attenuation structure, set up in the fan structure with between the sound attenuation structure for weaken the noise that the fan structure produced includes: a housing forming a sound-deadening cavity having a first side open; the cover plate is arranged on the first side, and at least one first hole is formed in the cover plate so that the silencing cavity is communicated with the outside; the sliding cover plate covers the cover plate and can move along the side extending direction of the cover plate, a second hole matched with the first hole in the cover plate is formed in the sliding cover plate, and when the sliding cover plate moves to different positions, the second hole can completely shield, partially shield or not shield the first hole.

As can be seen from the above technical solution, the embodiment of the present application discloses a silencing structure and a server, wherein the silencing structure includes a housing, and the housing forms a silencing cavity with a first side opened; the cover plate is arranged on the first side, and at least one first hole is formed in the cover plate so that the silencing cavity is communicated with the outside; the sliding cover plate covers the cover plate and can move along the side extending direction of the cover plate, a second hole matched with the first hole in the cover plate is formed in the sliding cover plate, and when the sliding cover plate moves to different positions, the second hole can completely shield, partially shield or not shield the first hole. In the application process, the open area of the cover plate can be changed by sliding the sliding cover plate to change the position of the sliding cover plate, so that the noise elimination structure can absorb noise with specific frequency by controlling the open area of the cover plate, and the environmental noise is improved.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only embodiments of the present application, and that other drawings can be obtained according to the provided drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural diagram of a sound damping structure according to an embodiment of the present application;

FIG. 2 is a diagram showing an example of the positional relationship between a cover plate and a sliding cover plate according to an embodiment of the present application;

fig. 3 is a schematic view of another sound damping structure according to an embodiment of the present application.

Detailed Description

The following description of the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.

Fig. 1 is a schematic structural diagram of a sound damping structure according to an embodiment of the present application. The silencing structure shown in fig. 1 can be applied to a server, which can be a server of various electronic devices, such as, but not limited to, a smart phone, a tablet computer, a wearable device, a personal computer (personal computer, PC), a netbook, and the like, and can be selected according to application requirements.

The silencing structure is used for weakening noise generated when the radiating structure, such as the radiating fan, in the server is operated, so that the noise in the server is as small as possible to influence normal operation of other components in the server, such as a mechanical hard disk in the server for reading and writing operations.

Referring to fig. 1, the sound attenuating structure may include:

the housing 10, the housing 10 forms a sound damping cavity with a first side open. The cover plate 20 is arranged on the first side, and at least one first hole is formed in the cover plate 20 so that the silencing cavity is communicated with the outside; the sliding cover plate 30 is covered on the cover plate 20, and can move along the extending direction of the side edge of the cover plate 20, and a second hole matched with the first hole on the cover plate 20 is arranged on the sliding cover plate 30, and when the sliding cover plate 30 moves to different positions, the second hole can completely cover, partially cover or not cover the first hole.

The shape of the housing 10 may be, but not limited to, a rectangular parallelepiped, a square, etc., and thus the sound-deadening chamber formed by the housing 10 is also a rectangular parallelepiped, a square, etc. corresponding thereto. The material of the housing 10 may be implemented in various ways, for example, wood, fiberglass, ceramic, resin, etc., which only needs to ensure that the housing 10 has a certain hardness and is not easy to break.

Wherein, the cover plate 20 is disposed on the first side of the sound-absorbing cavity, and at least one first hole is disposed thereon, but the area of the at least one first hole is not represented by the area of the sound-absorbing cavity communicating with the outside, because the sliding cover plate 30 is further disposed on the cover plate 20. The sliding cover 30 is provided with at least one second hole matching with the at least one hole. Here, matching may refer to at least one of: position matching, hole area and shape matching. The shape of the first hole and the second hole may be circular, but may be other shapes, such as oval, regular polygon, etc. The distribution of the first holes on the cover plate 20 may be regular or irregular, which is not limited by the present application. Correspondingly, the distribution arrangement of the second holes on the sliding cover 30 may be regular or irregular. In addition, the first and second holes may be the same size.

Fig. 2 is a diagram showing an example of the positional relationship between a cover plate and a sliding cover plate according to an embodiment of the present application. In fig. 2, a certain distance exists between the cover plate 20 and the sliding cover plate 30, so that the reader can better understand the positional relationship between the first hole and the second hole, and in practical application, the sliding cover plate 30 and the cover plate 20 are in covering contact. Referring to fig. 2, the positions of the first hole on the cover plate 20 and the second hole on the sliding cover plate 30 may or may not completely correspond. Wherein, a is an example diagram of the cover plate 20 and the sliding cover plate 30 in the first relative position, and b is an example diagram of the cover plate 20 and the sliding cover plate 30 in the second relative position. In the a diagram, the positions of the second holes and the first holes completely correspond, and the open area of the cover plate 20 is the area of all the first holes; in the b-chart, the second holes partially cover the first holes, and the open area of the cover plate 20 is smaller than the area of all the first holes. In practical applications, the number of the second holes on the sliding cover 30 may be the same as the number of the first holes on the cover 20, or may be less than or more than the number of the first holes on the cover 20.

Of course, the positions of the first holes on the cover plate 20 and the second holes on the sliding cover plate 30 may not completely correspond, so that when a certain first hole and a certain second hole completely overlap, other first holes may be partially or completely blocked by other second holes. As shown in fig. 1, the positions of the first hole on the cover 20 and the second hole on the sliding cover 30 cannot be completely corresponding.

The sliding cover plate 30 may slide along the extending direction of the side edge of the cover plate 20 above the cover plate 20, and when the sliding cover plate 20 slides to different positions, the coverage areas of the sliding cover plate 30 to the first holes are different, so that the open pore areas of the cover plate 20 of the noise elimination structure are also different, and therefore, the specific frequency can be absorbed by adjusting the position of the sliding cover plate 30, and the noise elimination effect is achieved.

The silencing structure can be arranged between a server general hard disk and a cooling fan in application, and can be used as a resonant cavity structure to weaken a noise resonance peak value caused when air flows, so that noise emitted by rotation of the fan is partially absorbed, and noise environment is improved. The direction of the muffler structure is not fixed, i.e. the cover plate is oriented in a different direction.

According to the silencing structure, in the application process, the opening area of the cover plate can be changed by sliding the sliding cover plate to change the position of the sliding cover plate, so that the silencing structure can absorb noise with specific frequency by controlling the opening area of the cover plate, and environmental noise is improved.

Fig. 3 is a schematic view of another sound damping structure according to an embodiment of the present application. Referring to fig. 3, in one implementation, the noise damping structure may further include, in addition to the structures of the casing 10, the cover plate 20 and the sliding cover plate 30 disclosed in the foregoing embodiments: at least one baffle 40, baffle 40 sets up in the noise elimination cavity is inside for with the noise elimination cavity is divided into two at least sound elimination son cavitys. Different sound eliminating sub-cavities can absorb sounds with different frequencies, so that the sounds with different frequencies are eliminated. The muffler structure shown in fig. 3 includes two sliding cover plates 30 that cover different first holes in cover plate 20.

The volume of the sound-damping cavities divided by the partition board 40 may be the same or different. In order to make the frequency of each sound-attenuating sub-cavity capable of attenuating sound more flexible, an independent sliding cover plate 30 can be covered on the cover plate area corresponding to each sound-attenuating sub-cavity, and the size of the sliding cover plate 30 is smaller than that of the cover plate area corresponding to the sound-attenuating sub-cavity corresponding to the sliding cover plate 30, so that the sliding cover plate 30 can slide above the sound-attenuating sub-cavity corresponding to the sliding cover plate 30.

Wherein, the physical properties of the first holes arranged on the corresponding cover plate area of each sound-eliminating sub-cavity are the same or different, and at least one of the following different characterization is different: shape, size, and number. Of course, the shapes and sizes of the first holes arranged on the corresponding Ai areas of the different silencing sub-cavities can be the same, and the application is not limited by the fixing.

In the embodiment of the application, the inner cavities of the silencing structure can be separated by the partition plate to form at least two silencing sub-cavities, and the frequencies of the sound eliminated by different silencing sub-cavities are different due to the difference of the volume and/or the open pore area, so that the sound with different frequencies can be eliminated, and the effect of overall noise reduction is achieved.

In one implementation, the partition 40 in the above embodiment is a detachable partition, and insertion or extraction may be performed based on a guide groove structure provided inside the housing. In the application, the casing inboard can set up a plurality of guide slot structures in different positions for can dismantle the position of inserting of baffle more nimble, thereby can form the noise elimination subcavity of multiple volume according to the demand, satisfy the noise elimination demand of different application scenes.

Based on the above, through the design of apron open area and baffle, noise elimination structure can carry out the performance improvement to different tired radiator fan and mechanical hard disk, and noise elimination structure overall structure is simple adjustable, simple to operate, and is with low costs, has very big market perspective.

In one implementation, the sound attenuating structure may further include: and the cover plate locking mechanism is used for locking the cover plate 20 and preventing the cover plate 20 from moving or falling off relative to the shell 10. It will be appreciated that once the cover 20 moves or falls off relative to the housing 10, the sound attenuating structure will no longer have a sound attenuating effect and the cover 20 may be secured by a cover locking mechanism. The cover plate locking mechanism can be a buckle structure, a fixing bolt structure or other locking structures, and the cover plate locking mechanism is not limited in fixing, and can be any structure capable of realizing cover plate fixing. Alternatively, the cover plate may be directly fixed and welded to the housing of the sound attenuation structure.

Furthermore, a rail may be provided on the cover 20 or on the outside of the housing 10, in which rail a part of the sliding cover 30 is located, so that a movement of the sliding cover 30 on the cover 20 is achieved. Correspondingly, a clamping structure can be further arranged on the outer side of the cover plate 20 or the outer side of the shell 10, so that the sliding cover plate 30 can be fixed at any position in the sliding rail. The specific implementation of the clamping structure can adopt any structure which is available in the current field and can fix a sliding target on a sliding rail.

In practice, as shown in connection with fig. 3, the assembly of the individual parts of the structure can be carried out according to fig. 3, wherein the partition 40 of the sound-damping structure is detachable for changing the cavity volume of the sound-damping structure. The muffler structure sliding cover 30 is slidable left and right for changing the open area of the muffler structure cover 20. The entire sound deadening structure is integrally placed near the fan of the server, and the baffle 40 and the sliding cover 30 are adjusted to absorb noise of a specific frequency. When the fan works, the fundamental frequency and the frequency multiplication of the fan blade can reach the peak value of noise, the noise passes through the silencing structure, then the noise of the peak value can partially enter the cavity of the silencing structure, and the peak value of the noise can be reduced through internal reflection and absorption, so that the purpose of noise reduction is achieved.

The sound absorption frequency of the sound attenuating structure is related to the volume of the cavity and the open area of the cover plate 20. By adjusting the two parameters, the frequency of absorbing noise can be changed, so that different types of fans can be dealt with.

Experiments prove that the scheme of the application can absorb specific frequency noise of theoretical calculation and simulation verification, and through hard disk vibration resistance verification test, for different types of hard disks and different configurations of cabinets and different types of fans, the noise improvement effect can be improved by 10% -55%, and the improvement effect is more remarkable.

Further, the application also discloses a server, which can comprise: the fan structure is used for radiating the heat of the server;

the hard disk is used for storing working data of the server;

The specific implementation of the sound attenuation structure can be referred to the relevant description in the foregoing embodiment, and the detailed description is not repeated here.

In the application, sliding the sliding cover plate of the silencing structure can change the open area of the cover plate, so that the silencing structure can absorb noise with specific frequency by controlling the open area of the cover plate, and environmental noise is improved.

In the present specification, each embodiment is described in a progressive manner, and each embodiment is mainly described in a different point from other embodiments, and identical and similar parts between the embodiments are all enough to refer to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant points refer to the description of the method section.

It is further noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

The steps of a method or algorithm described in connection with the embodiments disclosed herein may be embodied directly in hardware, in a software module executed by a processor, or in a combination of the two. The software modules may be disposed in Random Access Memory (RAM), memory, read Only Memory (ROM), electrically programmable ROM, electrically erasable programmable ROM, registers, hard disk, a removable disk, a CD-ROM, or any other form of storage medium known in the art.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A sound attenuating structure comprising:

a housing (10), the housing (10) forming a sound-damping cavity open on a first side;

the cover plate (20) is arranged on the first side, and at least one first hole is formed in the cover plate (20) so that the silencing cavity is communicated with the outside;

the sliding cover plate (30), the sliding cover plate (30) cover on the cover plate (20), and can move along the side extending direction of the cover plate (20), a second hole matched with the first hole on the cover plate (20) is arranged on the sliding cover plate, and when the sliding cover plate (30) moves to different positions, the second hole can completely cover, partially cover or not cover the first hole.

2. The sound attenuating structure of claim 1, further comprising:

at least one baffle (40), baffle (40) set up in the noise elimination cavity is inside for with the cavity of will eliminating noise falls into at least two phonon cavitys.

3. The sound attenuating structure according to claim 2, wherein each sound attenuating subchamber is covered with a separate sliding cover plate (30) in a corresponding cover plate area, and the sliding cover plate (30) has a smaller size than the corresponding cover plate area of its corresponding sound attenuating subchamber.

4. The sound attenuating structure of claim 2, wherein the physical properties of the first holes disposed on the corresponding cover plate region of each sound attenuating subchamber are the same or different, and the different characterizations are at least one of the following: shape, size, and number.

5. The sound attenuating structure according to claim 2, wherein the partition (40) is a detachable partition, which can be inserted or withdrawn based on a guide groove structure provided inside the housing.

6. The sound attenuation structure according to claim 1, wherein the sound attenuation cavity formed by the outer shell (10) is a cuboid cavity.

7. The sound attenuating structure of claim 1, wherein the first hole and the second hole are both circular holes and the second hole is the same size as the first hole.

8. The sound attenuating structure according to claim 7, wherein the number of said second holes in said sliding cover plate (30) is smaller than the number of said first holes in said cover plate (20).

9. The sound attenuating structure of claim 1, further comprising:

and the cover plate locking mechanism is used for locking the cover plate (20) and preventing the cover plate (20) from moving or falling off relative to the shell (10).

10. A server, comprising:

the fan structure is used for radiating the heat of the server;

the hard disk is used for storing working data of the server;