WO2018045830A1 - 一种风扇系统及服务器 - Google Patents

一种风扇系统及服务器 Download PDF

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Publication number
WO2018045830A1
WO2018045830A1 PCT/CN2017/093617 CN2017093617W WO2018045830A1 WO 2018045830 A1 WO2018045830 A1 WO 2018045830A1 CN 2017093617 W CN2017093617 W CN 2017093617W WO 2018045830 A1 WO2018045830 A1 WO 2018045830A1
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WIPO (PCT)
Prior art keywords
rotor body
noise reduction
reduction foam
foam
noise
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PCT/CN2017/093617
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English (en)
French (fr)
Inventor
徐征
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郑州云海信息技术有限公司
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Publication of WO2018045830A1 publication Critical patent/WO2018045830A1/zh

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D25/00—Pumping installations or systems
    • F04D25/02—Units comprising pumps and their driving means
    • F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/26—Rotors specially for elastic fluids
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/403—Casings; Connections of working fluid especially adapted for elastic fluid pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
    • F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
    • F04D29/663—Sound attenuation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
    • F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
    • F04D29/663—Sound attenuation
    • F04D29/664—Sound attenuation by means of sound absorbing material
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/16—Constructional details or arrangements
    • G06F1/20—Cooling means

Definitions

  • the present invention relates to the field of computer technologies, and in particular, to a fan system and a server.
  • the fan includes a stator, a rotor and a blade.
  • the stator can drive the rotor to drive the blade to occur around the stator in a specified direction.
  • Rotating, rotating blades can drive the air to flow quickly, and the air flow rate is higher, which can improve the efficiency of heat exchange between the server node and the air, and prevent the server node from being down due to excessive temperature.
  • the embodiment of the invention provides a fan system and a server with less noise.
  • an embodiment of the present invention provides a fan system, including:
  • stator body a stator body, a rotor body, a fan blade, and a noise reduction foam
  • the stator body is disposed inside the rotor body, and is connected to an external power module; the rotor body is fastened to the fan blade; and the noise reduction foam is adhered to an outer surface of the rotor body;
  • the stator body drives the rotor when receiving a driving current input by an external power module
  • the body rotates around the stator body in a specified direction
  • the rotor body drives the fan blade to rotate when rotating around the stator body in a specified direction
  • the fan blade drives the air to move in a specified direction when the rotor blade rotates under the driving of the rotor body;
  • the noise reduction foam is adhered to an outer surface of the rotor body; wherein, on the noise reduction foam, at least one blind hole is disposed on a side of the noise reduction foam that is in contact with an outer surface of the rotor body.
  • the at least one blind hole is evenly distributed on a side of the noise reduction foam that is in contact with an outer surface of the rotor body, and each of the blind holes is not in communication with each other.
  • the aperture ratio of the at least one blind hole on the noise reduction foam is not less than a reference threshold according to a sound pressure reflection coefficient of the noise reduction foam, a sound absorption coefficient, and a maximum vibration amplitude of the rotor body.
  • the reference threshold is calculated by the following formula:
  • B characterizes the reference threshold; ⁇ and ⁇ are constant; A characterizes the maximum vibration amplitude of the rotor body; ⁇ characterizes the sound pressure reflection coefficient of the noise reduction foam; and ⁇ characterizes the sound absorption coefficient of the noise reduction foam .
  • the noise reduction foam is made of a polyethylene plastic foam material.
  • an embodiment of the present invention provides a server, including:
  • the power module is configured to output a driving current to the fan system.
  • the embodiment of the invention provides a fan system and a server.
  • the stator body is disposed in the rotor body, and the fan blade is tightly connected with the rotor body, and the stator body receives the driving current input by the external power module.
  • Driving the rotor body to drive the fan blades around the stator body Rotating along the specified discovery, the rotating fan blades can drive the air to move in a specified direction; correspondingly, when the fan blades continue to rotate in a specified direction, the reaction forces of the fan blades at different times may not be the same, resulting in different
  • the rotor body generates a large amplitude of vibration, which in turn generates a large noise.
  • the noise reduction foam Since the outer surface of the rotor body is adhered with a noise reduction foam, at least one blind is disposed on the side of the noise reduction foam that is in contact with the outer surface of the rotor body.
  • the hole makes the noise sound wave reflect in the blind hole when the noise sound wave enters the noise reduction foam through the blind hole, and the intensity of the noise sound wave entering the noise reduction foam is weakened to some extent, and at the same time, the noise reduction foam itself can To some extent, the noise sound waves entering the noise reduction foam are absorbed to further reduce the intensity of the noise sound waves; thus, when the noise sound waves are diffused outward from the rotor body, the noise sound waves are reflected and absorbed to some extent by the noise reduction foam. Therefore, the intensity of the noise sound wave that continues to propagate to the outside after passing through the noise reduction foam is small, that is, the noise is small.
  • FIG. 1 is a schematic structural diagram of a fan system according to an embodiment of the present invention.
  • FIG. 2 is a schematic structural diagram of a server according to an embodiment of the present invention.
  • an embodiment of the present invention provides a fan system, including: a stator body 101, a rotor body 102, a fan blade 103, and a noise reduction foam 104; wherein
  • the stator body 101 is disposed inside the rotor body 102 and connected to an external power module; the rotor body 102 is fastened to the fan blade 103; the noise reduction foam 104 is adhered to the rotor body 102.
  • stator body 101 When receiving the driving current input by the external power module, the stator body 101 drives the rotor body 102 to rotate around the stator body 101 in a specified direction;
  • the rotor body 102 drives the fan blade 103 to rotate when rotating around the stator body 101 in a specified direction;
  • the noise reduction foam 104 is adhered to an outer surface of the rotor body 102; wherein, on the noise reduction foam 104, at least one blind hole is disposed on a side of the noise reduction foam 104 that is in contact with the outer surface of the rotor body 102. .
  • the stator body is disposed in the rotor body, and the fan blade is tightly coupled to the rotor body.
  • the stator body receives the driving current input from the external power module, and can drive the rotor body to drive the fan blade around the stator body. It is specified that the rotation occurs, and the rotating fan blade can drive the air to move in a specified direction; correspondingly, when the fan blade continuously rotates in a specified direction, the reaction force of the fan blade at different times may not be the same, resulting in the rotor
  • the body generates a large amplitude of vibration, which in turn generates a large noise.
  • the noise reduction foam Since the outer surface of the rotor body is adhered with the noise reducing foam, at least one blind hole is disposed on the side of the noise reduction foam that is in contact with the outer surface of the rotor body.
  • the noise sound wave enters the noise reduction foam through the blind hole, the noise sound wave is reflected in the blind hole, which weakens the intensity of the noise sound wave entering the noise reduction foam to a certain extent, and at the same time, the noise reduction foam itself can be certain To the extent that the noise sound waves entering the noise reduction foam are absorbed, further reducing the noise sound waves In this way, when the noise sound wave is diffused outward from the rotor body, the noise sound wave is reflected and absorbed to some extent by the noise reduction foam, so that the noise sound wave that continues to propagate to the outside after passing through the noise reduction foam is small, that is, The noise is small.
  • the noise sound waves are uniformly diffused in all directions by the rotor body as a center of the ball, and in order to simultaneously reduce the intensity of the noise sound waves in each direction,
  • the at least one blind hole is evenly distributed on a side of the noise reduction foam 104 that is in contact with the outer surface of the rotor body 102, and each of the blind holes is not in communication with each other.
  • the stator body is disposed in the rotor body, and when the rotor body rotates around the stator body, the greater the rotational speed, the greater the vibration amplitude, and the vibration amplitude of the rotor body is proportional to the noise magnitude, and therefore, the design
  • the minimum noise reduction requirement should be met, that is, at least the noise intensity is reduced to below 70 decibels; correspondingly, in a preferred embodiment of the present invention, according to the sound pressure reflection coefficient of the noise reduction foam 104, The sound absorption coefficient and the maximum vibration amplitude of the rotor body, the opening ratio of the at least one blind hole on the noise reduction foam 104 is not less than a reference threshold.
  • the reference threshold is calculated by the following formula 1:
  • B characterizes the reference threshold; ⁇ and ⁇ are constant; A characterizes the maximum vibration amplitude of the rotor body; ⁇ characterizes the sound pressure reflection coefficient of the noise reduction foam; and ⁇ characterizes the sound absorption coefficient of the noise reduction foam .
  • the opening ratio is the ratio of the opening area of the blind hole per unit area on the noise reduction foam to the unit area, and the larger the number of blind hole openings per unit area, the larger the opening area, that is, The larger the aperture ratio, the better the noise reduction effect; for example, since the sound intensity is greater than 70, it may endanger human health. Therefore, the sound intensity value of 70 dB can usually be used as the reference value, that is, the rotor body needs to be The intensity of the noise generated by the vibration is reduced to less than or equal to 70. At this time, the aperture ratio of the blind hole can be calculated by the above formula 1 according to the maximum amplitude of the rotor body.
  • the constant 70 in the above formula 1 is only the sound wave intensity that can be withstood in the human body safety range, and may be other values in a specific service intensity.
  • the fan system provided by the embodiment of the present invention can be installed in a server.
  • the fan system receives the driving current provided by the external power module and rotates, the fan system can quickly and effectively drive the air to circulate in the server.
  • the power module and processor in the server from Components such as hard disks are damaged due to excessive temperature, which causes the server to crash.
  • the fan system since the fan system drives the air to orient during the working process, the flowing air may cause static electricity to be generated by the device in contact with the air. Since the fan system is installed in the server, the motherboard and other motherboards are installed in the server. Functional circuit boards on which a plurality of integrated circuits are disposed, and at the same time, corresponding integrated circuits may be disposed inside the stator, and the electronic components on the integrated circuits discharge static electricity to other devices or devices adjacent thereto. It is easy to cause static electricity damage.
  • the noise-reduction foam 104 is Made of polyethylene plastic foam material.
  • the noise reduction foam made of a polyethylene plastic foam material generally has a resistance value of 10 6 to 10 9 ohms, and the impedance value is extremely high, which is not easy to generate electrostatic discharge;
  • the vinyl plastic foaming material can be injection molded, extruded, calendered and vacuum thermoformed, and the noise reduction foam of the corresponding shape can be made according to the shape of the rotor body, and the side of the noise reduction foam contacting the rotor body can be blinded. hole.
  • an embodiment of the present invention provides a server, including: a power module 201, and a fan system 202 according to any one of the foregoing embodiments;
  • the power module 210 is configured to output a driving current to the fan system 202.
  • the fan system provided by the embodiment of the invention generates less noise during the working process, and can be applied to the server.
  • the air can be driven to flow rapidly in the server, and the power module and the processor in the server node are improved. Heat exchange efficiency between components such as hard disks and air.
  • a stator body is disposed in a rotor body, and a fan blade is tightly coupled to the rotor body, and the stator body receives the driving current input from the external power module to drive the rotor body to drive
  • the fan blade rotates around the stator body along the specified position, and the rotating fan blade can drive the air to move in a specified direction; correspondingly, when the fan blade continuously rotates in a specified direction, the fan blade is subjected to the reaction force of the air at different times. Not the same, causing a large amplitude of vibration of the rotor body, which in turn generates large noise.
  • the side of the noise-reducing foam that is in contact with the outer surface of the rotor body At least one blind hole is arranged, so that when the noise sound wave enters the noise reduction foam through the blind hole, the noise sound wave is reflected in the blind hole, and the intensity of the noise sound wave entering the noise reduction foam is weakened to some extent, and at the same time, the noise reduction
  • the foam itself can absorb the noise sound waves entering the noise reduction foam to a certain extent, further reducing the intensity of the noise sound wave; thus, when the noise sound wave is diffused outward from the rotor body, the noise sound wave is fixed by the noise reduction foam
  • the degree of reflection and absorption is such that the noise of the noise that continues to propagate to the outside after passing through the noise-reducing foam is small, that is, the noise is small.
  • a plurality of blind holes are evenly distributed on a side of the noise reduction foam that is in contact with an outer surface of the rotor body, and each of the blind holes is not connected to each other, so that simultaneous The strength of the noise sound waves transmitted to the respective directions in the rotor body due to large vibrations is reduced.
  • the maximum opening ratio of the blind hole on the noise reduction foam is determined to ensure the noise reduction bubble.
  • the cotton can reduce the intensity of the noise sound waves generated by the vibration of the rotor body to a corresponding threshold range (for example, no more than 70 decibels).
  • the noise reduction foam made of a polyethylene plastic foam material generally has a resistance value of 106 to 109 ohms, and the impedance value is extremely high, which is not easy to generate electrostatic discharge;
  • the vinyl plastic foaming material can be injection molded, extruded, calendered and vacuum thermoformed, and the noise reduction foam of the corresponding shape can be made according to the shape of the rotor body, and the side of the noise reduction foam contacting the rotor body can be blinded.
  • the foregoing program may be stored in a computer readable storage medium, and the program is executed when executed.
  • the steps of the foregoing method embodiments are included; and the foregoing storage medium includes: various media that can store program codes, such as a ROM, a RAM, a magnetic disk, or an optical disk.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Theoretical Computer Science (AREA)
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  • Human Computer Interaction (AREA)
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Abstract

一种风扇系统（202）及服务器，其中，风扇系统（202）包括：定子本体（101）、转子本体（102）、风扇叶片（103）和降噪泡棉（104）；其中，定子本体（101）设置在转子本体（102）内部，与外部电源模块（201）相连；转子本体（102）与风扇叶片（103）紧固连接；降噪泡棉（104）粘附在转子本体（102）的外表面；定子本体（101）在接收到外部电源模块（201）输入的驱动电流时，驱动转子本体（102）围绕定子本体（101）沿指定方向发生转动；转子本体（102）在围绕定子本体（101）沿指定方向发生转动时带动风扇叶片（103）发生转动；风扇叶片（103）在转子本体（102）的带动下发生转动时，驱动空气沿指定方向运动；降噪泡棉（104）粘附在转子本体（102）的外表面；其中，在降噪泡棉（104）上，与转子本体（102）的外表面相接触的一侧设置有至少一个盲孔。风扇系统（202）的噪声较低。

Description

一种风扇系统及服务器 技术领域
本发明涉及计算机技术领域，特别涉及一种风扇系统及服务器。
背景技术
随着信息技术的不断发展，数据量的不断增多，越来越多的企业或组织通过搭建服务器系统来处理并存储业务数据。
目前，为了提高服务器系统的可用性，通常需要在服务器系统中设置风扇，风扇包括定子、转子和叶片，定子在接收到外部电源提供的驱动电流时，可驱动转子以带动叶片围绕定子沿指定方向发生转动，发生转动的叶片可驱动空气快速流动，空气流速较高，则可提高服务器节点与空气进行热交换的效率，防止服务器节点因温度过高而发生宕机。
但是，风扇转子驱动叶片发生运动时，不同的叶片在相同时刻可能出现受力不均，导致风扇转子发生较高频率的振动，噪声较大。
发明内容
本发明实施例提供了一种风扇系统及服务器，噪声较小。
第一方面，本发明实施例提供了一种风扇系统，包括：
定子本体、转子本体、风扇叶片和降噪泡棉；其中，
所述定子本体设置在所述转子本体内部，与外部电源模块相连；所述转子本体与所述风扇叶片紧固连接；所述降噪泡棉粘附在所述转子本体的外表面；
所述定子本体在接收到外部电源模块输入的驱动电流时，驱动所述转子 本体围绕所述定子本体沿指定方向发生转动；
所述转子本体在围绕所述定子本体沿指定方向发生转动时带动所述风扇叶片发生转动；
所述风扇叶片在所述转子本体的带动下发生转动时，驱动空气沿指定方向运动；
所述降噪泡棉粘附在所述转子本体的外表面；其中，在所述降噪泡棉上，与所述转子本体的外表面相接触的一侧设置有至少一个盲孔。
优选地，
所述至少一个盲孔均匀分布在所述降噪泡棉上与所述转子本体的外表面相接触的一侧，且每一个所述盲孔互不连通。
优选地，
根据所述降噪泡棉的声压反射系数、吸声系数及所述转子本体的最大振动幅度，所述至少一个盲孔在所述降噪泡棉上的开孔率不小于参考阈值。
优选地，
所述参考阈值通过如下公式计算：
Figure PCTCN2017093617-appb-000001
其中，B表征参考阈值；μ和ω为常数；A表征所述转子本体的最大振动幅度；α表征所述降噪泡棉的声压反射系数；β表征所述降噪泡棉的吸声系数。
优选地，
所述降噪泡棉由聚乙烯塑料发泡材料制成。
第二方面，本发明实施例提供了一种服务器，包括：
电源模块，以及如上述第一方面中任一所述的风扇系统；其中，
所述电源模块用于向所述风扇系统输出驱动电流。
本发明实施例提供了一种风扇系统及服务器，在风扇系统中，定子本体设置在转子本体内，风扇叶片与转子本体紧固连接，定子本体在接收到外部电源模块输入的驱动电流，即可驱动转子本体以带动风扇叶片围绕定子本体 沿指定发现发生转动，发生转动的风扇叶片可驱动空气沿指定方向运动；相应的，当风扇叶片沿指定方向发生持续转动时，风扇叶片在不同时刻受到空气的反作用力大小可能并不相同，导致转子本体发生较大幅度的振动，进而产生较大的噪声，由于转子本体的外表面粘附有降噪泡棉，降噪泡棉上与转子本体的外表面相接触的一侧设置有至少一个盲孔，使得噪声声波在经盲孔进入降噪泡棉时，噪声声波在盲孔中发生反射，一定程度上减弱进入降噪泡棉内的噪声声波的强度，同时，降噪泡棉本身能够在一定程度上对进入降噪泡棉内的噪声声波进行吸收，进一步降低噪声声波的强度；如此，噪声声波由转子本体向外扩散时，通过降噪泡棉对噪声声波进行一定程度的反射及吸收，使得穿过降噪泡棉后继续向外部传播的噪声声波强度较小，即噪声较小。
附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1是本发明一实施例提供的一种风扇系统的结构示意图；
图2是本发明一实施例提供的一种服务器的结构示意图。
具体实施方式
为使本发明实施例的目的、技术方案和优点更加清楚，下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例是本发明一部分实施例，而不是全部的实施例，基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动的前提下所获得的所有其他实施例，都属于本发明保护的范围。
如图1所示，本发明实施例提供了一种风扇系统，包括：定子本体101、 转子本体102、风扇叶片103和降噪泡棉104；其中，
所述定子本体101设置在所述转子本体102内部，与外部电源模块相连；所述转子本体102与所述风扇叶片103紧固连接；所述降噪泡棉104粘附在所述转子本体102的外表面；
所述定子本体101在接收到外部电源模块输入的驱动电流时，驱动所述转子本体102围绕所述定子本体101沿指定方向发生转动；
所述转子本体102在围绕所述定子本体101沿指定方向发生转动时带动所述风扇叶片103发生转动；
所述风扇叶片103在所述转子本体的带动下发生转动时，驱动空气沿指定方向运动；
所述降噪泡棉104粘附在所述转子本体102的外表面；其中，在所述降噪泡棉104上，与所述转子本体102的外表面相接触的一侧设置有至少一个盲孔。
本发明上述实施例中，定子本体设置在转子本体内，风扇叶片与转子本体紧固连接，定子本体在接收到外部电源模块输入的驱动电流，即可驱动转子本体以带动风扇叶片围绕定子本体沿指定发现发生转动，发生转动的风扇叶片可驱动空气沿指定方向运动；相应的，当风扇叶片沿指定方向发生持续转动时，风扇叶片在不同时刻受到空气的反作用力大小可能并不相同，导致转子本体发生较大幅度的振动，进而产生较大的噪声，由于转子本体的外表面粘附有降噪泡棉，降噪泡棉上与转子本体的外表面相接触的一侧设置有至少一个盲孔，使得噪声声波在经盲孔进入降噪泡棉时，噪声声波在盲孔中发生反射，一定程度上减弱进入降噪泡棉内的噪声声波的强度，同时，降噪泡棉本身能够在一定程度上对进入降噪泡棉内的噪声声波进行吸收，进一步降低噪声声波的强度；如此，噪声声波由转子本体向外扩散时，通过降噪泡棉对噪声声波进行一定程度的反射及吸收，使得穿过降噪泡棉后继续向外部传播的噪声声波强度较小，即噪声较小。
进一步的，由于噪声源转子本体发生较大的振动而产生较大的噪声时，噪声声波以转子本体为球心向各个方向上均匀扩散，为了实现同时降低各个方向上的噪声声波的强度，本发明一个优选实施例中，所述至少一个盲孔均匀分布在所述降噪泡棉104上与所述转子本体102的外表面相接触的一侧，且每一个所述盲孔互不连通。
一般来说，定子本体设置在转子本体内，转子本体围绕定子本体发生转动时，转动速度越大，则其振动幅度越大，由于转子本体的振动幅度大小与噪声大小成正比，因此，在设计降噪泡棉时，应当满足最低降噪要求，即至少实现将噪声强度降到70分贝以下；相应的，本发明一个优选实施例中，根据所述降噪泡棉104的声压反射系数、吸声系数及所述转子本体的最大振动幅度，所述至少一个盲孔在所述降噪泡棉104上的开孔率不小于参考阈值。
具体地，本发明一个优选实施例中，所述参考阈值通过如下公式1计算：
Figure PCTCN2017093617-appb-000002
其中，B表征参考阈值；μ和ω为常数；A表征所述转子本体的最大振动幅度；α表征所述降噪泡棉的声压反射系数；β表征所述降噪泡棉的吸声系数。
本发明上述实施例中，开孔率即降噪泡棉上单位面积内盲孔的开孔面积与单位面积的比值，单位面积内的盲孔开孔数量越多，开孔面积越大，即开孔率越大时，降噪效果越好；举例来说，由于声波强度大于70时，可能危害人体健康，因此，通常可以将70分贝的声音强度值作为基准值，即需要将转子本体因振动而产生噪声声波的强度降低至小于或等于70，此时，则可根据转子本体的最大振幅通过上述公式1计算出盲孔的开孔率。
需要说明的是，上述公式1中的常数70仅为人体安全范围内能够承受的声波强度，在特定的业务强度中，也可以是其他值。
在一种具体的业务场景中，本发明实施例提供的风扇系统可安装在服务器内，风扇系统在接收到外部电源模块提供的驱动电流并发生转动时，可快速有效的驱动空气在服务器内流通，以防止服务器内的电源模块、处理器以 及硬盘等组件因自身温度过高而发生损坏，进而导致服务器宕机。
在上述业务场景中，由于风扇系统在工作过程中驱动空气定向运动时，流动的空气可能使得与空气相接触的装置产生静电，由于风扇系统安装在服务器内，而服务器内还安装有主板以及其他功能性电路板，这些电路板上设置有许多的集成电路，同时，定子内部也可能设置有相应的集成电路，这些集成电路上的电子元器件在与其相邻的其他装置或设备释放静电时，很容易发生静电损毁，因此，为了防止粘附在转子本体外部的降噪泡棉释放静电，对其附近的电子元器件造成损毁，本发明一个优选实施例中，所述降噪泡棉104由聚乙烯塑料发泡材料制成。
本发明上述实施例中，由聚乙烯塑料发泡材料制成的降噪泡棉，其电阻值通常可以达到106～109欧姆，阻抗值极高，不易产生静电释放现象；同时，由于聚乙烯塑料发泡材料可注塑、挤塑、压延及真空热成型，可实现根据转子本体的外形制作相应形状的降噪泡棉，以及在降噪泡棉与转子本体相接触的一侧塑出盲孔。
如图2所示，本发明实施例提供了一种服务器，包括：电源模块201，以及如上述实施例中任一所述的风扇系统202；其中，
所述电源模块210用于向所述风扇系统202输出驱动电流。
本发明实施例提供的风扇系统在工作过程中产生的噪声较小，可将其应用到服务器中，风扇系统工作时，可驱动空气在服务器内快速流动，提高服务器节点内电源模块、处理器以及硬盘等各组件与空气的热交换效率。
本发明各个实施例至少具有如下有益效果：
1、本发明一实施例提供的风扇系统中，定子本体设置在转子本体内，风扇叶片与转子本体紧固连接，定子本体在接收到外部电源模块输入的驱动电流，即可驱动转子本体以带动风扇叶片围绕定子本体沿指定发现发生转动，发生转动的风扇叶片可驱动空气沿指定方向运动；相应的，当风扇叶片沿指定方向发生持续转动时，风扇叶片在不同时刻受到空气的反作用力大小可能 并不相同，导致转子本体发生较大幅度的振动，进而产生较大的噪声，由于转子本体的外表面粘附有降噪泡棉，降噪泡棉上与转子本体的外表面相接触的一侧设置有至少一个盲孔，使得噪声声波在经盲孔进入降噪泡棉时，噪声声波在盲孔中发生反射，一定程度上减弱进入降噪泡棉内的噪声声波的强度，同时，降噪泡棉本身能够在一定程度上对进入降噪泡棉内的噪声声波进行吸收，进一步降低噪声声波的强度；如此，噪声声波由转子本体向外扩散时，通过降噪泡棉对噪声声波进行一定程度的反射及吸收，使得穿过降噪泡棉后继续向外部传播的噪声声波强度较小，即噪声较小。
2、本发明一实施例中，多个盲孔均匀分布在所述降噪泡棉上与所述转子本体的外表面相接触的一侧，且每一个所述盲孔互不连通，可实现同时降低转子本体因发生较大振动而传递向各个方向的噪声声波的强度。
3、本发明一实施例中，根据降噪泡棉的声压反射系数、吸声系数及转子本体的最大振动幅度，确定盲孔在降噪泡棉上的最大开孔率，确保降噪泡棉能够将转子本体因振动而产生的噪声声波的强度降低至相应的阈值范围内(比如，不大于70分贝)。
4、本发明一实施例中，由聚乙烯塑料发泡材料制成的降噪泡棉，其电阻值通常可以达到106～109欧姆，阻抗值极高，不易产生静电释放现象；同时，由于聚乙烯塑料发泡材料可注塑、挤塑、压延及真空热成型，可实现根据转子本体的外形制作相应形状的降噪泡棉，以及在降噪泡棉与转子本体相接触的一侧塑出盲孔
需要说明的是，在本文中，诸如第一和第二之类的关系术语仅仅用来将一个实体或者操作与另一个实体或操作区分开来，而不一定要求或者暗示这些实体或操作之间存在任何这种实际的关系或者顺序。而且，术语“包括”、“包含”或者其任何其他变体意在涵盖非排他性的包含，从而使得包括一系列要素的过程、方法、物品或者设备不仅包括那些要素，而且还包括没有明确列出的其他要素，或者是还包括为这种过程、方法、物品或者设备所固有 的要素。在没有更多限制的情况下，由语句“包括一个〃〃〃〃〃〃”限定的要素，并不排除在包括所述要素的过程、方法、物品或者设备中还存在另外的相同因素。
本领域普通技术人员可以理解：实现上述方法实施例的全部或部分步骤可以通过程序指令相关的硬件来完成，前述的程序可以存储在计算机可读取的存储介质中，该程序在执行时，执行包括上述方法实施例的步骤；而前述的存储介质包括：ROM、RAM、磁碟或者光盘等各种可以存储程序代码的介质中。
最后需要说明的是：以上所述仅为本发明的较佳实施例，仅用于说明本发明的技术方案，并非用于限定本发明的保护范围。凡在本发明的精神和原则之内所做的任何修改、等同替换、改进等，均包含在本发明的保护范围内。

Claims (6)

  1. 一种风扇系统，其特征在于，包括：
    定子本体、转子本体、风扇叶片和降噪泡棉；其中，
    所述定子本体设置在所述转子本体内部，与外部电源模块相连；所述转子本体与所述风扇叶片紧固连接；所述降噪泡棉粘附在所述转子本体的外表面；
    所述定子本体在接收到外部电源模块输入的驱动电流时，驱动所述转子本体围绕所述定子本体沿指定方向发生转动；
    所述转子本体在围绕所述定子本体沿指定方向发生转动时带动所述风扇叶片发生转动；
    所述风扇叶片在所述转子本体的带动下发生转动时，驱动空气沿指定方向运动；
    所述降噪泡棉粘附在所述转子本体的外表面；其中，在所述降噪泡棉上，与所述转子本体的外表面相接触的一侧设置有至少一个盲孔。
  2. 根据权利要求1所述的风扇系统，其特征在于，
    所述至少一个盲孔均匀分布在所述降噪泡棉上与所述转子本体的外表面相接触的一侧，且每一个所述盲孔互不连通。
  3. 根据权利要求1所述的风扇系统，其特征在于，
    根据所述降噪泡棉的声压反射系数、吸声系数及所述转子本体的最大振动幅度，所述至少一个盲孔在所述降噪泡棉上的开孔率不小于参考阈值。
  4. 根据权利要求2所述的风扇系统，其特征在于，
    所述参考阈值通过如下公式计算：
    Figure PCTCN2017093617-appb-100001
    其中，B表征参考阈值；μ和ω为常数；A表征所述转子本体的最大振动幅度；α表征所述降噪泡棉的声压反射系数；β表征所述降噪泡棉的吸声系数。
  5. 根据权利要求1至4中任一所述的风扇系统，其特征在于，
    所述降噪泡棉由聚乙烯塑料发泡材料制成。
  6. 一种服务器，其特征在于，包括：
    电源模块，以及如上述权利要求1至5中任一所述的风扇系统；其中，
    所述电源模块用于向所述风扇系统输出驱动电流。
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Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5649419A (en) * 1995-01-27 1997-07-22 The Boeing Company Rotating acoustically lined inlet splitter for a turbo-fan engine
CN1603630A (zh) * 2003-10-02 2005-04-06 日本电产株式会社 用于引出导线的风扇装置的结构
CN101124862A (zh) * 2005-10-31 2008-02-13 惠普开发有限公司 用于电子装置的通风式机壳
CN101512161A (zh) * 2006-08-30 2009-08-19 科勒公司 降噪罩
CN101862707A (zh) * 2009-01-15 2010-10-20 热电子Led有限公司 用于离心机的低噪声转子腔
CN203239644U (zh) * 2013-04-19 2013-10-16 深圳市研派科技有限公司 一种低噪音的风扇装置
US20160138598A1 (en) * 2014-11-18 2016-05-19 Lg Electronics Inc. Fan-Motor Assembly And Refrigerator Having The Same
CN106481587A (zh) * 2016-09-12 2017-03-08 郑州云海信息技术有限公司 一种风扇系统及服务器

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4276363B2 (ja) * 2000-07-31 2009-06-10 株式会社小松製作所 ファン装置の騒音低減機構に用いられる多孔質吸音材の成形方法
DE20213195U1 (de) * 2002-08-28 2002-12-12 Wolf Heinz Schalldämpfer mit Lochplatten-Satz
CN101149296B (zh) * 2007-11-09 2011-09-07 北京航空航天大学 宽带降噪声衬及其制造方法
CN103790842A (zh) * 2014-03-03 2014-05-14 陕西时代深蓝视讯工程有限公司 一种降噪冷却风扇
CN104088819B (zh) * 2014-06-10 2017-01-25 宁波升鸿机械设备有限公司 一种高压鼓风机的消音装置
CN204877996U (zh) * 2015-07-15 2015-12-16 黄其江 一种能够减小噪音和震动的鼓风机
CN204851710U (zh) * 2015-08-13 2015-12-09 常州市尼尔司机械有限公司 降噪鼓风机

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5649419A (en) * 1995-01-27 1997-07-22 The Boeing Company Rotating acoustically lined inlet splitter for a turbo-fan engine
CN1603630A (zh) * 2003-10-02 2005-04-06 日本电产株式会社 用于引出导线的风扇装置的结构
CN101124862A (zh) * 2005-10-31 2008-02-13 惠普开发有限公司 用于电子装置的通风式机壳
CN101512161A (zh) * 2006-08-30 2009-08-19 科勒公司 降噪罩
CN101862707A (zh) * 2009-01-15 2010-10-20 热电子Led有限公司 用于离心机的低噪声转子腔
CN203239644U (zh) * 2013-04-19 2013-10-16 深圳市研派科技有限公司 一种低噪音的风扇装置
US20160138598A1 (en) * 2014-11-18 2016-05-19 Lg Electronics Inc. Fan-Motor Assembly And Refrigerator Having The Same
CN106481587A (zh) * 2016-09-12 2017-03-08 郑州云海信息技术有限公司 一种风扇系统及服务器

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