CN113835500A

CN113835500A - Server and hard disk noise reduction and heat dissipation mechanism thereof

Info

Publication number: CN113835500A
Application number: CN202111128305.7A
Authority: CN
Inventors: 许锡振
Original assignee: Suzhou Inspur Intelligent Technology Co Ltd
Current assignee: Suzhou Inspur Intelligent Technology Co Ltd
Priority date: 2021-09-26
Filing date: 2021-09-26
Publication date: 2021-12-24

Abstract

The invention discloses a noise-reducing and heat-dissipating mechanism for a hard disk, which comprises a fan arranged in a case and a hard disk back plate arranged in the case and opposite to the fan, wherein a plurality of ventilation holes are formed in the hard disk back plate, each ventilation hole is provided with a flow-guiding silencing cover which extends towards the fan and is used for receiving noise generated when the fan operates and enabling sound waves to be reflected for multiple times in a transmission path so as to consume energy, and a cover opening of the flow-guiding silencing cover is communicated with the corresponding ventilation hole. Therefore, the noise generated when the fan operates is received by the drainage silencing cover, the noise sound waves form multiple reflections in the transmission path inside the drainage silencing cover, noise energy is reduced in the transmission path of the noise sound waves, and meanwhile, the ventilation and heat dissipation requirements of the hard disk are guaranteed by conducting drainage on heat dissipation airflow, so that the reduction of the operating noise of the fan can be enhanced on the basis of avoiding affecting the heat dissipation performance, and the influence of the noise on the performance of the hard disk is reduced. The invention also discloses a server, which has the beneficial effects as described above.

Description

Server and hard disk noise reduction and heat dissipation mechanism thereof

Technical Field

The invention relates to the technical field of servers, in particular to a noise-reducing and heat-dissipating mechanism for a hard disk. The invention also relates to a server.

Background

With the development of the electronic technology in China, more and more electronic devices have been widely used.

The server is an important component of the electronic device, and is a device that provides a computing service, and since the server needs to respond to and process a service request, the server has the capability of undertaking and securing the service. Servers can be classified as file servers, database servers, application servers, WEB servers, and the like, depending on the type of service provided. The main components of the server include a CPU, a hard disk, a memory, a system bus, and the like, similar to a general computer architecture.

In the big data era, a large number of IT devices are centrally placed in racks of a data center. These data centers include various types of servers, storage, switches, and a large number of cabinets and other infrastructure. Each type of IT equipment is composed of various hardware boards, such as a computing module, a storage module, a chassis, a fan, and the like.

At present, the power consumption of server components is increasing day by day, and for air-cooled servers, increasing the fan speed is a common way to increase the heat dissipation performance, but with the increase of the fan speed, the noise caused by the operation of the fan is also more and more severe. Meanwhile, with the increasing demand of the capacity of the hard disk, the density of the hard disk is higher and higher, the self anti-vibration and anti-noise effects of the hard disk are limited, and the influence of noise caused by the increase of the rotating speed of the fan is difficult to resist. Moreover, the design density of the server components is higher and higher, and for matching the depth of the general cabinet and the size optimization of a customer site, the length of the server cannot be longer and longer, so that the arrangement positions of the hard disk and the fan are closer and closer, and the influence of the running noise of the fan on the performance of the hard disk is more and more serious.

In prior art, generally reduce the noise of fan through the mode of the cotton of attached sound of inhaling in server machine case, nevertheless inhale cotton noise cancelling effect of sound often not good enough to still need additionally to occupy large area's installation space, inhale the cotton existence of sound simultaneously and still can block radiating passage usually, cause the windage increase, the cold wind flow reduces, and heat dispersion reduces, needs the fan of higher rotational speed to satisfy the heat dissipation demand on the contrary, must not repay.

Therefore, it is a technical problem for those skilled in the art to reduce the influence of noise on the performance of the hard disk by enhancing the reduction of the fan operation noise while avoiding the influence on the heat dissipation performance.

Disclosure of Invention

The invention aims to provide a noise-reducing and heat-dissipating mechanism for a hard disk, which can enhance the reduction of the running noise of a fan and reduce the influence of the noise on the performance of the hard disk on the basis of avoiding the influence on the heat-dissipating performance. Another object of the present invention is to provide a server.

In order to solve the technical problem, the invention provides a noise reduction and heat dissipation mechanism for a hard disk, which comprises a fan arranged in a case and a hard disk back plate arranged in the case and opposite to the fan, wherein a plurality of ventilation holes are formed in the hard disk back plate, a drainage silencing cover which extends towards the fan and is used for receiving noise generated during the operation of the fan and enabling sound waves to be reflected for multiple times in a transmission path so as to consume energy is arranged at each ventilation hole, and a cover opening of the drainage silencing cover is communicated with the corresponding ventilation hole.

Preferably, a projection area of the cross section of the cover opening on the hard disk back plate is not overlapped with a coverage area of the corresponding vent hole on the hard disk back plate.

Preferably, the cross section of the cover body of the drainage noise reduction cover is polygonal or circular.

Preferably, the cover body of the drainage noise reduction cover is a multi-section bent pipe.

Preferably, the cross-sectional area of the cover opening is larger than the area of the corresponding vent hole, and the cover opening is an air outlet.

Preferably, the cover body of the flow-guiding noise reduction cover is made of sound-absorbing materials.

Preferably, a back plate frame is connected to the back surface of the hard disk back plate, a plurality of mounting holes communicated with the vent holes are formed in the back plate frame, and the flow-guiding noise reduction covers are respectively inserted into the corresponding mounting holes.

Preferably, the drainage noise reduction cover is detachably connected with the corresponding mounting hole.

Preferably, the outer walls of two sides of the cover body of the drainage silencing cover are respectively provided with a fastening hole, and the two sides of the hole wall of each mounting hole are respectively provided with a fastening piece used for being connected with the corresponding fastening holes.

The invention also provides a server, which comprises a case and a hard disk noise reduction and heat dissipation mechanism arranged in the case, wherein the hard disk noise reduction and heat dissipation mechanism is specifically any one of the hard disk noise reduction and heat dissipation mechanisms.

The invention provides a noise-reducing and heat-dissipating mechanism for a hard disk, which mainly comprises a fan, a hard disk back plate and a drainage noise-reducing cover. The fan is arranged in the case and is mainly used for dissipating heat of the hard disk installed in the case in an air cooling mode of forced convection. The hard disk back plate is arranged in the case, is generally positioned in the hard disk mounting frame, is opposite to the fan, is mainly used for integrally connecting a plurality of hard disks and realizes the data interaction and control functions of the hard disks. A plurality of ventilation holes are formed in the hard disk back plate, and each ventilation hole is mainly used for enabling heat dissipation airflow generated by the operation of the fan to pass through so as to dissipate heat of the hard disk. The drainage noise reduction cover is a core component, is generally simultaneously provided with a plurality of drainage noise reduction covers, and is respectively distributed at each vent hole. Simultaneously, the cover body of each drainage amortization cover all extends towards the place direction of fan, and the cover mouth of drainage amortization cover is towards the fan promptly, and the cover mouth communicates through the cover body and the ventilation hole that corresponds to the heat dissipation air current that makes the fan produce smoothly passes through ventilation hole, the cover body and cover mouth, guarantees that the heat dissipation air current smoothly flows at quick-witted incasement. Importantly, the flow guide noise reduction cover can receive noise sound waves generated from the fan and transmitted to the hard disk backboard through the cover opening, and the noise sound waves are reflected for multiple times in a transmission path in the cover body, so that the energy of the noise sound waves is consumed and absorbed for multiple times, the noise energy finally transmitted to the ventilation hole and the hard disk is greatly reduced, and the influence of fan operation noise on the performance of the hard disk can be greatly reduced. Compared with the prior art, the noise reduction and heat dissipation mechanism for the hard disk provided by the invention has the advantages that the noise generated during the operation of the fan is received by the cover opening of the drainage noise reduction cover, the noise sound wave is reflected for multiple times in the transmission path inside the drainage noise reduction and heat dissipation cover, the noise energy can be reduced in the transmission path of the noise sound wave, and meanwhile, the drainage and passage of the heat dissipation airflow generated during the operation of the fan are carried out by the drainage noise reduction cover, so that the ventilation and heat dissipation requirements of the hard disk are ensured, and therefore, the reduction of the operation noise of the fan can be enhanced on the basis of avoiding the influence on the heat dissipation performance, and the influence of the noise on the performance of the hard disk is reduced.

Drawings

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

Fig. 1 is a schematic overall structure diagram of an embodiment of the present invention.

Fig. 2 is a schematic view of an assembly structure of the flow guide noise reduction cover, the hard disk backboard and the backboard frame.

Fig. 3 is an exploded view of fig. 2.

Fig. 4 is a specific structure diagram of the drainage silencing cover.

Fig. 5 is a schematic view of the flow-inducing silencing principle of the flow-inducing silencing cover.

Wherein, in fig. 1-5:

the fan comprises a case-1, a fan-2, a hard disk backboard-3, a flow guide silencing cover-4 and a backboard frame-5;

a ventilation hole-31, a cover opening-41, a fastening hole-42, a mounting hole-51 and a fastening piece-52.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1, fig. 1 is a schematic overall structure diagram of an embodiment of the present invention.

In a specific embodiment provided by the invention, the hard disk noise reduction and heat dissipation mechanism mainly comprises a fan 2, a hard disk back plate 3 and a flow guide noise reduction cover 4.

The fan 2 is disposed in the case 1 and is mainly used for dissipating heat of the hard disk installed in the case 1 through an air cooling method of forced convection.

The hard disk back plate 3 is arranged in the case 1, is generally positioned in the hard disk mounting frame, is opposite to the fan 2, is mainly used for integrally connecting a plurality of hard disks and realizes the data interaction and control functions of the hard disks.

A plurality of ventilation holes 31 are formed in the hard disk back plate 3, and each ventilation hole 31 is mainly used for allowing the heat dissipation airflow generated by the operation of the fan 2 to pass through so as to dissipate heat of the hard disk.

The flow-guiding noise reduction cover 4 is a core component, and is generally provided with a plurality of air vents 31 respectively. Meanwhile, the cover body of each drainage noise reduction cover 4 extends towards the direction of the fan 2, namely, the cover opening 41 of the drainage noise reduction cover 4 faces the fan 2, and the cover opening 41 is communicated with the corresponding vent hole 31 through the cover body, so that the heat dissipation airflow generated by the fan 2 smoothly passes through the vent hole 31, the cover body and the cover opening 41, and the heat dissipation airflow is guaranteed to smoothly flow in the case 1.

Importantly, the flow guide noise reduction cover 4 can receive the noise sound wave generated from the fan 2 and propagating towards the hard disk backboard 3 through the cover opening 41, and the noise sound wave forms multiple reflection in the transmission path in the cover body, so that the energy of the noise sound wave is consumed and absorbed for multiple times, and the noise energy finally transmitted to the ventilation hole 31 and the hard disk is greatly reduced, and therefore, the influence of the operation noise of the fan 2 on the performance of the hard disk can be greatly reduced.

Compared with the prior art, the heat dissipation mechanism of making an uproar falls in hard disk that this embodiment provided, utilize the cover mouth 41 of drainage amortization cover 4 to receive the noise that produces when fan 2 moves and utilize the cover body to make the noise sound wave form multiple reflection in its inside transfer path, can reduce noise energy in the transfer path of noise sound wave, it is current to carry out the drainage through drainage amortization cover 4 to the heat dissipation air current that fan 2 moved the production simultaneously, guarantee the ventilation cooling demand of hard disk, consequently can be on the basis of avoiding influencing heat dissipation performance, strengthen the reduction to fan 2 noise of operation, the influence of noise reduction to hard disk performance.

As shown in fig. 5, fig. 5 is a schematic view of the principle of flow-guide silencing of the flow-guide silencing cover 4 (solid arrows are shown as the heat-dissipating airflow, and dashed arrows are shown as the noise sound waves).

In order to facilitate the formation of multiple reflections when the noise sound waves are transmitted in the flow guide noise reduction cover 4, in the embodiment, there is no overlapping portion between the projection area of the cross section of the cover opening 41 of the flow guide noise reduction cover 4 on the hard disk back plate 3 and the covering area of the ventilation hole 31 corresponding to the flow guide noise reduction cover 4 on the hard disk back plate 3. So set up, no matter how the cover body structure of drainage amortization cover 4 designs, the noise sound wave that gets into from cover mouth 41 department can't be direct not through the reflection just ventilation hole 31 always, in the transmission process of noise sound wave in the cover body of drainage amortization cover 4, always forms collision and reflection once at least with the cover body inner wall of drainage amortization cover 4. In practical use, the noise sound waves are generally reflected for more than 3 times in the body of the flow-guiding noise-reduction cover 4.

In a preferred embodiment with respect to the flow-inducing noise damping cap 4, the cap body of the flow-inducing noise damping cap 4 is in particular of polygonal tubular construction, i.e. the cross-section of the cap body is in particular polygonal or circular, so as to form a straight tubular or circular tubular cap body, which facilitates a smooth flow of the heat dissipating air flow.

In another preferred embodiment of the flow-guiding noise-damping cover 4, the cover body of the flow-guiding noise-damping cover 4 is embodied as a multi-segment bent pipe, that is, the cover body is divided into a plurality of obviously spliced segments, such as a zigzag pipe or a wavy bent pipe, so that the wind resistance of the heat-dissipating airflow is slightly increased, but the reflection times of noise sound waves are generally more, and the reduction absorption degree is stronger.

Fig. 4 is a specific structural schematic diagram of the flow-guiding noise reduction cover 4, as shown in fig. 4.

In addition, in order to further reduce the wind resistance of the heat dissipation airflow and reduce the turbulence and noise generated when the heat dissipation airflow passes through the hard disk, in this embodiment, the cross-sectional area of the cover opening 41 of each flow-guiding muffling cover 4 is larger than the area of the vent hole 31, and the wind direction of the heat dissipation airflow in the case 1 flows from the hard disk backplane 3 to the fan 2, that is, the vent hole 31 of the hard disk backplane 3 is an air inlet, and the cover opening 41 of the flow-guiding muffling cover 4 is an air outlet. So set up, the cover body of drainage amortization cover 4 forms the flaring tubulose promptly to gush into the back in ventilation hole 31 at the heat dissipation air current, can increase the air-out area gradually, reduce the wind pressure, and then reduce windage and turbulent flow, reduce the air-out noise.

Furthermore, in order to further improve the attenuation and absorption degree of the flow-guiding sound-deadening hood 4 during the transmission of the noise sound waves, in the present embodiment, the hood body of the flow-guiding sound-deadening hood 4 is specifically made of a sound-absorbing material, such as polyurethane foam or the like.

As shown in fig. 2 and 3, fig. 2 is an assembly structure diagram of the flow guide noise reduction cover 4, the hard disk backplane 3, and the backplane frame 5, and fig. 3 is an exploded structure diagram of fig. 2.

In addition, in consideration of the fact that other parts are arranged on the hard disk back plate 3, in order to facilitate stable installation of the flow-guiding noise reduction cover 4 on the hard disk back plate 3, the back plate frame 5 is additionally arranged in the embodiment. Specifically, the backplane frame 5 is mainly used for bearing the hard disk backplane 3, and the hard disk backplane 3 can be connected to the front surface of the backplane frame 5 and connected to the chassis 1 by using the backplane frame 5. Meanwhile, in order to ensure ventilation, a plurality of mounting holes 51 are formed in the back plate frame 5, and the specific distribution positions of the mounting holes 51 correspond to the distribution positions of the ventilation holes 31 in the hard disk back plate 3, so that the mounting holes 51 are respectively communicated with the corresponding ventilation holes 31. Accordingly, the respective flow-directing noise muffling covers 4 are inserted into the respective mounting holes 51, while ensuring connection to the respective vent holes 31.

Further, in order to facilitate the mounting and dismounting operation and the position adjustment of the flow-guiding muffling cover 4 on the back plate frame 5, in the present embodiment, each flow-guiding muffling cover 4 is detachably connected to the corresponding mounting hole 51. Specifically, the two sides of the body of the drainage noise reduction cover 4 are both connected with ear plates, and the ear plates are provided with fastening holes 42. Meanwhile, the back panel frame 5 is provided with fasteners 52 at both side regions of the hole wall of each mounting hole 51, and the fasteners 52 are mainly used for forming connection with the fastening holes 42, such as threaded connection or clamping connection. Generally, the fastening member 52 may be disposed on the front surface of the backplane frame 5 (facing the hard disk backplane 3) or may be disposed on the back surface of the backplane frame 5 (facing away from the hard disk backplane 3).

The embodiment further provides a server, which mainly includes a case 1 and a noise reduction and heat dissipation mechanism for a hard disk arranged in the case 1, wherein specific contents of the noise reduction and heat dissipation mechanism for a hard disk are the same as those of the noise reduction and heat dissipation mechanism for a hard disk, and are not described herein again.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. 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 invention. Thus, the present invention 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. The utility model provides a heat dissipation mechanism of making an uproar falls in hard disk, including setting up fan (2) in quick-witted case (1), its characterized in that, still including set up in quick-witted case (1) in and with fan (2) just right hard disk backplate (3), a plurality of ventilation hole (31) have been seted up on hard disk backplate (3), each ventilation hole (31) department is provided with the orientation fan (2) are extended, be used for receiving the noise that fan (2) produced when moving and make the sound wave in the transmission route many times reflection with drainage amortization cover (4) of consumption energy, just the cover mouth (41) of drainage amortization cover (4) with correspond ventilation hole (31) intercommunication.

2. The noise-reducing and heat-dissipating mechanism for the hard disk according to claim 1, wherein a projection area of a cross section of the cover opening (41) on the hard disk back plate (3) does not overlap with a coverage area of the corresponding vent hole (31) on the hard disk back plate (3).

3. The noise-reducing and heat-dissipating mechanism of the hard disk according to claim 2, wherein the cross section of the flow-guiding noise-reducing cover (4) is polygonal or circular.

4. The noise-reducing and heat-dissipating mechanism of the hard disk according to claim 2, wherein the cover body of the flow-guiding noise-reducing cover (4) is a multi-section bent pipe.

5. The noise-reducing and heat-dissipating mechanism for the hard disk according to claim 3 or 4, wherein the cross-sectional area of the cover opening (41) is larger than the area of the corresponding vent hole (31), and the cover opening (41) is an air outlet.

6. The noise-reducing and heat-dissipating mechanism of a hard disk according to claim 1, wherein the cover body of the flow-guiding noise-reducing cover (4) is made of sound-absorbing material.

7. The noise-reducing and heat-dissipating mechanism for the hard disk according to claim 1, wherein a back plate frame (5) is connected to the back surface of the hard disk back plate (3), a plurality of mounting holes (51) communicated with the ventilation holes (31) are formed in the back plate frame (5), and the flow-guiding noise-reducing covers (4) are respectively inserted into the corresponding mounting holes (51).

8. A noise-reducing and heat-dissipating mechanism for a hard disk according to claim 7, wherein the flow-guiding noise-reducing cover (4) is detachably connected to the corresponding mounting hole (51).

9. The noise-reducing and heat-dissipating mechanism for the hard disk according to claim 8, wherein fastening holes (42) are formed in the outer walls of the two sides of the cover body of the flow-guiding noise-reducing cover (4), and fastening members (52) for connecting with the corresponding fastening holes (42) are arranged on the two sides of the hole wall of the mounting hole (51).

10. A server, comprising a chassis (1) and a noise-reducing and heat-dissipating mechanism for a hard disk disposed in the chassis (1), wherein the noise-reducing and heat-dissipating mechanism for a hard disk is the noise-reducing and heat-dissipating mechanism for a hard disk according to any one of claims 1 to 9.