CN102192163A - 风扇 - Google Patents

风扇 Download PDF

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Publication number
CN102192163A
CN102192163A CN2010101195174A CN201010119517A CN102192163A CN 102192163 A CN102192163 A CN 102192163A CN 2010101195174 A CN2010101195174 A CN 2010101195174A CN 201010119517 A CN201010119517 A CN 201010119517A CN 102192163 A CN102192163 A CN 102192163A
Authority
CN
China
Prior art keywords
bracket
rotor
fan
stator
sleeve
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
CN2010101195174A
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English (en)
Inventor
韩旭升
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hongfujin Precision Industry Shenzhen Co Ltd
Hon Hai Precision Industry Co Ltd
Original Assignee
Hongfujin Precision Industry Shenzhen Co Ltd
Hon Hai Precision Industry Co Ltd
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 Hongfujin Precision Industry Shenzhen Co Ltd, Hon Hai Precision Industry Co Ltd filed Critical Hongfujin Precision Industry Shenzhen Co Ltd
Priority to CN2010101195174A priority Critical patent/CN102192163A/zh
Priority to US12/779,928 priority patent/US8235688B2/en
Publication of CN102192163A publication Critical patent/CN102192163A/zh
Pending legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
    • 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
    • F04D25/06—Units comprising pumps and their driving means the pump being electrically driven
    • F04D25/0606—Units comprising pumps and their driving means the pump being electrically driven the electric motor being specially adapted for integration in the pump
    • F04D25/0613—Units comprising pumps and their driving means the pump being electrically driven the electric motor being specially adapted for integration in the pump the electric motor being of the inside-out type, i.e. the rotor is arranged radially outside a central stator
    • 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
    • F04D25/06—Units comprising pumps and their driving means the pump being electrically driven
    • F04D25/0606—Units comprising pumps and their driving means the pump being electrically driven the electric motor being specially adapted for integration in the pump
    • F04D25/0613—Units comprising pumps and their driving means the pump being electrically driven the electric motor being specially adapted for integration in the pump the electric motor being of the inside-out type, i.e. the rotor is arranged radially outside a central stator
    • F04D25/062—Details of the bearings
    • 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
    • F04D29/60—Mounting; Assembling; Disassembling
    • F04D29/64—Mounting; Assembling; Disassembling of axial pumps
    • F04D29/644—Mounting; Assembling; Disassembling of axial pumps especially adapted for elastic fluid pumps
    • F04D29/646—Mounting or removal of fans

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Motor Or Generator Frames (AREA)

Abstract

一种风扇，包括风扇架、定子以及转子，风扇架包括外框及托座，定子装设于托座上方，转子包括转轴以及由上方罩住定子的转子外壳，转子外壳包括顶板以及由顶板向下垂直延伸出的空心圆柱形套筒，转轴由顶板中心向下垂直延伸出并可转动地装设于定子，转子外壳的套筒的下部延伸至托座的周侧，以将托座环绕包围，套筒下部与托座之间形成一装配间隙。本发明风扇工作时，由于转子外壳的套筒的下部将托座环绕包围，使得风流难以与托座接触而反弹进入转子内部，从而割断了灰尘进入转子内部的最主要的途径，防尘效果显著且防尘成本低廉。

Description

风扇
技术领域
本发明涉及一种风扇。
背景技术
风扇工作时，灰尘很容易由风扇架及转子之间的装配间隙进入转子内部，对转子及定子造成影响，轻则使得风扇产生噪音，重则可能使得风扇停转。同时，灰尘的进入也大大降低了风扇的使用寿命。
为降低灰尘损害，业界出现了防尘环等一类防尘装置。防尘装置装设于风扇的风扇架及转子之间，用于防止灰尘由风扇架及转子之间的装配间隙进入转子内部。但是，增加防尘装置会使风扇成本提高。另外，由于防尘装置在制造及装配时，很可能存在误差。这种误差会导致防尘装置与转子产生磨擦，影响转子的正常转动。
发明内容
鉴于以上内容，有必要提供一种具有低成本防尘设计的风扇。
一种风扇，包括一风扇架、一定子以及一转子，所述风扇架包括外框及托座，所述定子装设于所述托座上方，所述转子包括转轴以及由上方罩住所述定子的转子外壳，所述转子外壳包括一顶板以及一由所述顶板向下垂直延伸出的空心圆柱形套筒，所述转轴由所述顶板中心向下垂直延伸出并可转动地装设于所述定子，所述转子外壳的套筒的下部延伸至所述托座的周侧，以将所述托座环绕包围，所述套筒下部与所述托座之间形成一环绕所述托座的装配间隙。
本发明风扇工作时，由于转子外壳的套筒的下部将托座环绕包围，使得风流难以与托座接触而反弹进入转子内部，从而割断了灰尘进入转子内部的最主要的途径，防尘效果显著。另外，本发明风扇无需额外安装防尘装置，防尘成本低廉，并且避免了防尘装置的制造误差及装配误差可能造成的对于转子的影响。
附图说明
图1是本发明风扇的第一较佳实施方式的剖面示意图。
图2是本发明风扇的第二较佳实施方式的剖面示意图。
主要元件符号说明
风扇              10、10a
风扇架            20
外框              21
托座              23、23a
环槽              230a
定子              40
电路板            41
线圈              43
固定卡子          45
转子              60、60a
转轴              61
转子外壳          63
顶板              631
套筒              633、633a
环形凸起          635a
扇叶              65
磁铁              67
装配间隙          80
具体实施方式
请参考图1，在本发明的第一较佳实施方式中，风扇10包括一风扇架20以及装设于风扇架20内的一定子40与一转子60。
风扇架20为一体成型的塑件，包括位于***的外框21以及位于底部中央的托座23。
定子40装设于风扇架20的托座23。定子40包括电路板41、线圈43及固定卡子45。电路板41上设有控制电路，用于控制风扇10的转速。
转子60包括转轴61、转子外壳63、扇叶65及磁铁67。转子外壳63与转轴61一体成型。转子外壳63包括一圆形顶板631以及一由顶板631周缘向下垂直延伸出的空心圆柱形套筒633。转轴61由转子外壳63的顶板631的中心向下垂直延伸出。转轴61通过定子40的固定卡子45可转动地装设于定子40。转子外壳63由上方罩住定子40。转子外壳63的套筒633的下部延伸至托座23的周侧，以将托座23环绕包围。套筒633的下部与托座23之间还形成一环绕托座23的装配间隙80，使得转子外壳63不会接触托座23，从而保证转子60的正常转动。扇叶65由转子外壳63延伸出，并位于转子外壳63及风扇架20的外框21之间。磁铁67附着于转子外壳63的套筒633的内壁，并环绕定子40的线圈43设置。
传统风扇工作时，部分风流会经风扇架的托座反弹而进入转子内部。这是灰尘进入转子内部的最主要的途径。本发明风扇10工作时，由于转子外壳63的套筒633的下部将托座23环绕包围，使得风流难以与托座23接触而反弹进入转子60内部，从而割断了灰尘进入转子60内部的最主要的途径，防尘效果显著。
另外，装配间隙80的宽度最好在0.5毫米左右，这样可以在使转子60的外壳63不与托座23接触而保证转子60的正常转动的基础上，尽可能地降低灰尘进入转子60内部的可能性。
请参考图2，图2显示了本发明的第二较佳实施方式的风扇10a。风扇10a与风扇10的区别在于，风扇10a的托座23a的周侧壁上开设一环绕托座23a的环槽230a，风扇10a的转子60a的套筒633a的内壁对应延伸出一环形凸起635a并延伸至环槽230a内。环槽230a与环形凸起635a的设计可进一步阻隔灰尘进入转子60a内部。

Claims (3)

1.一种风扇，包括一风扇架、一定子以及一转子，所述风扇架包括外框及托座，所述定子装设于所述托座上方，所述转子包括转轴以及由上方罩住所述定子的转子外壳，所述转子外壳包括一顶板以及一由所述顶板向下垂直延伸出的空心圆柱形套筒，所述转轴由所述顶板中心向下垂直延伸出并可转动地装设于所述定子，其特征在于：所述转子外壳的套筒的下部延伸至所述托座的周侧，以将所述托座环绕包围，所述套筒的下部与所述托座之间形成一环绕所述托座的装配间隙。
2.如权利要求1所述的风扇，其特征在于：所述装配间隙的宽度为0.5毫米。
3.如权利要求1或2所述的风扇，其特征在于：所述托座的周侧壁上开设一环槽，所述套筒的内壁对应延伸出一环形凸起并延伸至所述环槽内。
CN2010101195174A 2010-03-08 2010-03-08 风扇 Pending CN102192163A (zh)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN2010101195174A CN102192163A (zh) 2010-03-08 2010-03-08 风扇
US12/779,928 US8235688B2 (en) 2010-03-08 2010-05-13 Fan

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2010101195174A CN102192163A (zh) 2010-03-08 2010-03-08 风扇

Publications (1)

Publication Number Publication Date
CN102192163A true CN102192163A (zh) 2011-09-21

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US (1) US8235688B2 (zh)
CN (1) CN102192163A (zh)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104791305A (zh) * 2014-01-20 2015-07-22 鸿富锦精密工业(武汉)有限公司 风扇
JP2018178802A (ja) * 2017-04-07 2018-11-15 日本電産株式会社 ファンモータ

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001107893A (ja) * 1999-10-07 2001-04-17 Japan Servo Co Ltd モータファン
JP2005192363A (ja) * 2003-12-26 2005-07-14 Matsushita Electric Ind Co Ltd アウターロータ型モータ
US20060051221A1 (en) * 2004-09-06 2006-03-09 Delta Electronics, Inc. Heat-dissipation structure for motor
CN1786482A (zh) * 2004-12-08 2006-06-14 鸿富锦精密工业（深圳）有限公司 采用流体轴承的风扇

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4658312A (en) * 1981-09-07 1987-04-14 Papst-Motoren Gmbh & Co. K.G. Disk storage drive
JPS6281458U (zh) * 1985-11-07 1987-05-25
JP3482373B2 (ja) * 2000-04-28 2003-12-22 ミネベア株式会社 送風機
JP2002039091A (ja) * 2000-07-21 2002-02-06 Minebea Co Ltd 送風機
JP3694224B2 (ja) * 2000-08-22 2005-09-14 山洋電気株式会社 防水構造を備えた遠心ファン
US6572346B2 (en) * 2001-09-24 2003-06-03 Hsieh Hsin-Mao Cooling fan
US6616422B2 (en) * 2001-10-09 2003-09-09 Adda Corporation Cooling fan dust structure for keeping off flying dust from entering into spindle
US7061155B1 (en) * 2005-01-04 2006-06-13 Asia Vital Component Co., Ltd. Rotor device capable of dissipating heat and resisting foreign objects
TWI280322B (en) * 2005-12-23 2007-05-01 Delta Electronics Inc Fan and motor thereof
US20080067899A1 (en) * 2006-09-18 2008-03-20 Gun Son BLDC motor
CN201461555U (zh) * 2009-04-24 2010-05-12 东莞动利电子有限公司 风扇防尘防漏油结构

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001107893A (ja) * 1999-10-07 2001-04-17 Japan Servo Co Ltd モータファン
JP2005192363A (ja) * 2003-12-26 2005-07-14 Matsushita Electric Ind Co Ltd アウターロータ型モータ
US20060051221A1 (en) * 2004-09-06 2006-03-09 Delta Electronics, Inc. Heat-dissipation structure for motor
CN1786482A (zh) * 2004-12-08 2006-06-14 鸿富锦精密工业（深圳）有限公司 采用流体轴承的风扇

Also Published As

Publication number Publication date
US20110215665A1 (en) 2011-09-08
US8235688B2 (en) 2012-08-07

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Application publication date: 20110921