WO2020125087A1 - 一种磁悬浮风机的进风消音结构 - Google Patents

一种磁悬浮风机的进风消音结构 Download PDF

Info

Publication number
WO2020125087A1
WO2020125087A1 PCT/CN2019/105505 CN2019105505W WO2020125087A1 WO 2020125087 A1 WO2020125087 A1 WO 2020125087A1 CN 2019105505 W CN2019105505 W CN 2019105505W WO 2020125087 A1 WO2020125087 A1 WO 2020125087A1
Authority
WO
WIPO (PCT)
Prior art keywords
magnetic levitation
cabinet
air
air inlet
acoustic panels
Prior art date
Application number
PCT/CN2019/105505
Other languages
English (en)
French (fr)
Inventor
熊健
吴立华
董继勇
Original Assignee
南京磁谷科技有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 南京磁谷科技有限公司 filed Critical 南京磁谷科技有限公司
Publication of WO2020125087A1 publication Critical patent/WO2020125087A1/zh

Links

Images

Classifications

    • 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

Definitions

  • the invention relates to an air inlet silencer structure of a magnetic suspension fan.
  • the existing magnetic levitation centrifugal blower mainly adopts a soundproof baffle structure to separate the main engine air inlet and the air inlet of the fan to muffle the noise.
  • Most of the existing soundproof plates are vertical or horizontal designs. The flow direction changes greatly when the airflow passes the baffle, and the flow resistance is relatively high Large, easy to produce noise in the place where the airflow direction changes greatly.
  • the present invention is to provide an air intake silencing structure for a magnetic levitation fan in order to solve the above-mentioned problems in the prior art.
  • an air intake silencing structure of a magnetic levitation fan including a cabinet and a magnetic levitation fan
  • the magnetic levitation fan is placed in the cabinet
  • the cabinet has a rectangular structure, and is provided on all four sides of the cabinet
  • the air inlet also includes sound insulation plates. Several sound insulation plates are evenly distributed along the circumferential direction of the air intake channel in the magnetic levitation fan, and a muffler cavity is formed between two adjacent sound insulation plates. The muffler cavity is connected to the air inlet. The end is fixed in the cabinet;
  • the soundproof plate has an arc-shaped structure, and includes an inner arc orifice plate, an outer arc orifice plate, a middle silencing cotton and an end plate.
  • the inner arc orifice plate and the outer arc orifice plate are arranged parallel to each other, and the inner circle A filling gap is formed between the arc orifice plate and the outer circular arc orifice plate, the middle silencing cotton is filled in the filling gap, the end plate is fixed around the inner and outer circular arc orifice plates and the filling gap is closed.
  • a connecting piece is fixedly connected to the outer wall of the sound insulation board, and a fixing hole is provided on the connecting piece.
  • a filter screen is provided at the air inlet.
  • the present invention has the following beneficial effects: the present invention adopts a radial arc sound insulation board to muffle the center of the air inlet to reduce the flow resistance and reduce the noise.
  • the magnetic levitation fan starts, external air enters the cabinet through the air inlet of the cabinet, and then After entering the air intake passage through the muffler cavity between the internal radial arc sound insulation board.
  • the sound insulation board adopts arc structure, it can reduce the resistance of the airflow and reduce the noise of the gas flow.
  • the sound insulation board adopts the structure of the surface porous board and the internal sound-absorbing cotton, it can also eliminate some high-frequency noises emitted from the host.
  • Figure 1 is a structural diagram of the present invention.
  • FIG. 2 is a structural diagram of a soundproof board in the present invention.
  • the air intake silencing structure of the magnetic levitation fan of the present invention includes a cabinet 1, a magnetic levitation fan 2 and a sound insulation board 3.
  • the magnetic levitation fan 2 is placed in the cabinet 1, the cabinet 1 has a rectangular structure, and the air inlets 11 are provided on the four sides of the cabinet 1, and a number of sound insulation boards 3 are uniform along the circumferential direction of the air inlet 21 in the magnetic levitation fan 2
  • the sound absorbing cavity 30 is formed between two adjacent soundproof plates 3, and the sound absorbing cavity 30 communicates with the air inlet 11. Both ends of the sound insulation board 3 are fixed in the cabinet 1, and the sound insulation board 3 is located inside the air inlet 11.
  • the soundproof plate 3 has an arc-shaped structure, and includes an inner arc orifice plate 31, an outer arc orifice plate 32, a middle silencing cotton 33 and an end plate.
  • the inner arc orifice plate 31 and the outer arc orifice plate 32 are arranged parallel to each other, and A filling gap is formed between the inner circular arc orifice plate 31 and the outer circular arc orifice plate 32, and the middle silencing cotton 33 is filled in the filling gap, the end plates are fixed around the inner and outer circular arc orifice plates and the filling gap is closed.
  • connection piece 34 is fixedly connected to the end plate on the bottom surface of the sound insulation board 3, and a fixing hole is provided on the connection piece 34.
  • the sound insulation board 3 is fixed to the cabinet 1 and the magnetic levitation fan 2 by bolts.
  • a filter screen is provided at the air inlet 11.
  • the invention adopts a radial arc sound insulation board to muffle the center of the air inlet 21 as a center to reduce flow resistance and noise.
  • the magnetic levitation fan 2 When the magnetic levitation fan 2 is started, external air enters the cabinet through the air inlet 11 of the cabinet, and then passes through the internal radial The muffler cavity 30 between the arc-shaped sound insulation plates 3 enters the intake passage.
  • the soundproof board adopts arc structure, it can reduce the resistance of the air flow and reduce the noise of the gas flow. Because the soundproof board adopts the structure of the surface porous board and the internal sound-absorbing cotton, it can also eliminate some high-frequency noise from the host.

Abstract

一种磁悬浮风机（2）的进风消音结构，磁悬浮风机（2）置于机柜（1）内，在机柜（1）的四个侧面上均设有进风口（11），还包括隔音板（3），若干个隔音板（3）沿着磁悬浮风机（2）中进气道（21）的圆周方向均匀分布，且隔音板（3）的两端固定于机柜（1）内，隔音板（3）位于进风口（11）的内侧。该进风消音结构以进气道（21）中心为圆心采用辐射状圆弧隔音板（3）消音，以减少流阻，降低噪音；磁悬浮风机（2）启动时，外部气体经过机柜（1）的进风口（11）进入机柜（1）内部，再经过内部辐射状圆弧隔音板（3）之间的消音腔进入进气道（21）。隔音板（3）采用弧形结构，降低了气流的阻力进而可以降低气体流动的噪音，同时隔音板（3）采用了表面多孔板和内部消音棉（33）的结构，也可以消除主机内部传出的一些高频噪音。

Description

一种磁悬浮风机的进风消音结构 技术领域：
本发明涉及一种磁悬浮风机的进风消音结构。
背景技术：
现有磁悬浮离心鼓风机主要采用隔音挡板结构将主机进气道和风机进风口部分隔开消音，现有隔音板大多是竖直或水平设计，气流经过挡板时流向变化较大，流阻较大，在气流流向变化较大的地方容易产生噪音。
发明内容：
本发明是为了解决上述现有技术存在的问题而提供一种磁悬浮风机的进风消音结构。
本发明所采用的技术方案有：一种磁悬浮风机的进风消音结构，包括机柜和磁悬浮风机，所述磁悬浮风机置于机柜内，机柜为矩形状结构，在机柜的四个侧面上均设有进风口，还包括隔音板，若干个隔音板沿着磁悬浮风机中进气道的圆周方向均匀分布，且相邻两隔音板之间形成消音腔，消音腔与进风口相连通，隔音板的两端固定于机柜内；
所述隔音板为圆弧状结构，包括内圆弧孔板、外圆弧孔板、中间消音棉和端板，所述内圆弧孔板和外圆弧孔板相互平行设置，且内圆弧孔板与外圆弧孔板之间形成填充间隙，中间消音棉填充于所述填充间隙内，端板固定于内、外圆弧孔板的四周并将填充间隙封闭。
进一步地，所述隔音板的外壁上固定连接有连接片，在连接片上设有固定孔。
进一步地，所述进风口处设有滤网。
本发明具有如下有益效果：本发明以进气道中心为圆心采用辐射状圆弧隔音板消音，以减少流阻，降低噪音，磁悬浮风机启动时，外部气体经过机柜的进风口进入机柜内部，再经过内部辐射状圆弧隔音板之间的消音腔进入进气道。由于隔音板采用弧形结构，可以降低气流的阻力进而可以降低气体流动的噪音，由于隔音板采用了表面多孔板 和内部消音棉的结构，也可以消除主机内部传出的一些高频噪音。
附图说明：
图1为本发明结构图。
图2为本发明中隔音板的结构图。
具体实施方式：
下面结合附图对本发明作进一步的说明。
如图1和图2，本发明一种磁悬浮风机的进风消音结构，包括机柜1、磁悬浮风机2和隔音板3。
磁悬浮风机2置于机柜1内，机柜1为矩形状结构，在机柜1的四个侧面上均设有进风口11，若干个隔音板3沿着磁悬浮风机2中进气道21的圆周方向均匀分布，且相邻两隔音板3之间形成消音腔30，消音腔30与进风口11相连通。隔音板3的两端固定于机柜1内，隔音板3位于进风口11的内侧。
隔音板3为圆弧状结构，包括内圆弧孔板31、外圆弧孔板32、中间消音棉33和端板，内圆弧孔板31和外圆弧孔板32相互平行设置，且内圆弧孔板31与外圆弧孔板32之间形成填充间隙，中间消音棉33填充于所述填充间隙内，端板固定于内、外圆弧孔板的四周并将填充间隙封闭。
为便于隔音板3的固定安装，在隔音板3中底面的端板上固定连接有连接片34，在连接片34上设有固定孔。隔音板3通过螺栓固定于机柜1和磁悬浮风机2上。
在进风口11处设有滤网。
本发明以进气道21中心为圆心采用辐射状圆弧隔音板消音，以减少流阻，降低噪音，磁悬浮风机2启动时，外部气体经过机柜的进风口11进入机柜内部，再经过内部辐射状圆弧隔音板3之间的消音腔30进入进气道。由于隔音板采用弧形结构，可以降低气流的阻力进而可以降低气体流动的噪音，由于隔音板采用了表面多孔板和内部消音棉的结构，也可以消除主机内部传出的一些高频噪音。
以上所述仅是本发明的优选实施方式，应当指出，对于本技术领域的普通技术人员来说，在不脱离本发明原理的前提下还可以作出若干改进，这些改进也应视为本发明的 保护范围。

Claims (3)

  1. 一种磁悬浮风机的进风消音结构，包括机柜(1)和磁悬浮风机(2)，所述磁悬浮风机(2)置于机柜(1)内，机柜(1)为矩形状结构，在机柜(1)的四个侧面上均设有进风口(11)，其特征在于：还包括隔音板(3)，若干个隔音板(3)沿着磁悬浮风机(2)中进气道的圆周方向均匀分布，且相邻两隔音板(3)之间形成消音腔(30)，消音腔(30)与进风口(11)相连通，隔音板(3)的两端固定于机柜(1)内；
    所述隔音板(3)为圆弧状结构，包括内圆弧孔板(31)、外圆弧孔板(32)、中间消音棉(33)和端板，所述内圆弧孔板(31)和外圆弧孔板(32)相互平行设置，且内圆弧孔板(31)与外圆弧孔板(32)之间形成填充间隙，中间消音棉(33)填充于所述填充间隙内，端板固定于内、外圆弧孔板的四周并将填充间隙封闭。
  2. 如权利要求1所述的磁悬浮风机的进风消音结构，其特征在于：所述隔音板(3)的外壁上固定连接有连接片(34)，在连接片(34)上设有固定孔。
  3. 如权利要求1所述的磁悬浮风机的进风消音结构，其特征在于：所述进风口(11)处设有滤网。
PCT/CN2019/105505 2018-12-18 2019-09-12 一种磁悬浮风机的进风消音结构 WO2020125087A1 (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201811548504.1 2018-12-18
CN201811548504.1A CN109404345A (zh) 2018-12-18 2018-12-18 一种磁悬浮风机的进风消音结构

Publications (1)

Publication Number Publication Date
WO2020125087A1 true WO2020125087A1 (zh) 2020-06-25

Family

ID=65459622

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2019/105505 WO2020125087A1 (zh) 2018-12-18 2019-09-12 一种磁悬浮风机的进风消音结构

Country Status (2)

Country Link
CN (1) CN109404345A (zh)
WO (1) WO2020125087A1 (zh)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109404345A (zh) * 2018-12-18 2019-03-01 南京磁谷科技有限公司 一种磁悬浮风机的进风消音结构
CN109404318A (zh) * 2018-12-18 2019-03-01 南京磁谷科技有限公司 一种磁悬浮离心式鼓风机机柜

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1136143A (zh) * 1995-04-24 1996-11-20 Abb管理有限公司 过滤式消音器
CN202159483U (zh) * 2011-07-01 2012-03-07 佛山市顺德区惠美庄材料实业有限公司 复合消音板及其制品
CN104728158A (zh) * 2015-03-30 2015-06-24 华帝股份有限公司 一种吸油烟机用风轮
CN108252960A (zh) * 2017-12-28 2018-07-06 南京磁谷科技有限公司 一种高速离心式风机的消声机柜
CN109404345A (zh) * 2018-12-18 2019-03-01 南京磁谷科技有限公司 一种磁悬浮风机的进风消音结构
CN109404318A (zh) * 2018-12-18 2019-03-01 南京磁谷科技有限公司 一种磁悬浮离心式鼓风机机柜

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105864109B (zh) * 2015-01-22 2018-08-07 中国科学院声学研究所 一种轴流风机进风口消声器
CN108005963A (zh) * 2017-12-28 2018-05-08 南京磁谷科技有限公司 一种高速离心式风机的柜体结构
CN209340231U (zh) * 2018-12-18 2019-09-03 南京磁谷科技有限公司 一种磁悬浮风机的进风消音结构

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1136143A (zh) * 1995-04-24 1996-11-20 Abb管理有限公司 过滤式消音器
CN202159483U (zh) * 2011-07-01 2012-03-07 佛山市顺德区惠美庄材料实业有限公司 复合消音板及其制品
CN104728158A (zh) * 2015-03-30 2015-06-24 华帝股份有限公司 一种吸油烟机用风轮
CN108252960A (zh) * 2017-12-28 2018-07-06 南京磁谷科技有限公司 一种高速离心式风机的消声机柜
CN109404345A (zh) * 2018-12-18 2019-03-01 南京磁谷科技有限公司 一种磁悬浮风机的进风消音结构
CN109404318A (zh) * 2018-12-18 2019-03-01 南京磁谷科技有限公司 一种磁悬浮离心式鼓风机机柜

Also Published As

Publication number Publication date
CN109404345A (zh) 2019-03-01

Similar Documents

Publication Publication Date Title
CN201650452U (zh) 一种柴油发电机组的静音装置
CN102230407B (zh) 一种阻抗复合式排气消音器
WO2005018404A1 (fr) Unite de reduction de bruit pour aspirateur
CN104534532A (zh) 一种吸油烟机的降噪装置
WO2020125087A1 (zh) 一种磁悬浮风机的进风消音结构
CN203743083U (zh) 一种用于除尘器的风机消音器
WO2020125046A1 (zh) 一种磁悬浮离心式鼓风机机柜
JP2015075116A (ja) 音響減衰装置
CN103850987A (zh) 一种用于除尘器的风机消音器
CN204082265U (zh) 一种排气消声器
CN102889115A (zh) 内燃机消声器以及内燃机
CN206726756U (zh) 一种方便更换消声单元的组合式消声器
CN209340231U (zh) 一种磁悬浮风机的进风消音结构
CN105697103A (zh) 一种发动机排气系统消声器
CN108087342A (zh) 一种具有亥姆霍兹共振消声结构的离心风机扩压器
CN207993473U (zh) 一种微穿孔复合式消声器
CN202117739U (zh) 一种阻抗复合式排气消音器
CN202991298U (zh) 一种超静音发电机组双层隔音式进气系统
CN206617215U (zh) 一种mpv排气消声器装置
CN206408985U (zh) 一种用于发电机的降噪房
CN205895606U (zh) 多层高效消音装置
CN204783177U (zh) 一种柴油发电机组排烟消声器
CN107630749A (zh) 一种柴油发电机组静音箱
CN207702017U (zh) 一种通风管道消音器
CN206845319U (zh) 一种风冷式静音柴油发电机

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 19899115

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 19899115

Country of ref document: EP

Kind code of ref document: A1