CN2456211Y - 散热风扇 - Google Patents

散热风扇 Download PDF

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Publication number
CN2456211Y
CN2456211Y CN00258349U CN00258349U CN2456211Y CN 2456211 Y CN2456211 Y CN 2456211Y CN 00258349 U CN00258349 U CN 00258349U CN 00258349 U CN00258349 U CN 00258349U CN 2456211 Y CN2456211 Y CN 2456211Y
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China
Prior art keywords
fan
fixed leg
utility
model
coil
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Expired - Fee Related
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CN00258349U
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English (en)
Inventor
赖澄辉
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Enermax Technology Corp
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刘宏彩
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Priority to CN00258349U priority Critical patent/CN2456211Y/zh
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Publication of CN2456211Y publication Critical patent/CN2456211Y/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
    • F04D29/26—Rotors specially for elastic fluids
    • F04D29/32—Rotors specially for elastic fluids for axial flow pumps
    • F04D29/38—Blades
    • F04D29/384—Blades characterised by form
    • 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

Abstract

本实用新型涉及一种散热风扇,是在一座体的中心设一固定柱,供套置一线圈、一磁环和一风扇,其中,风扇的旋转座的周缘设有间隔排列的双层叶片,风扇中心的凹槽内置入一轴承,当风扇藉线圈的驱动而转动时,可以因该轴承的滑动而更为顺畅,从而降低振动及噪音的产生,且因风扇的多层叶片而提高风扇效率,进而增加散热的效果。

Description

散热风扇
本实用新型涉及一种散热风扇，尤指一种转动顺畅且可消除震动及噪音的风扇。
对于一般的电脑主机所使用的微处理器或易在工作中产生高温的电子元件而言，为了防止其因高温而损坏，通常在表面设有效热片和散热风扇，籍以排除过高的温度，维持电子元件的正常动作。而已有的散热风扇如图1所示：主要是在启动线圈81上覆盖一风扇82，通过线圈82产生的磁场使风扇82转动，此种结构由于仅将风扇82籍由一体成形的固定柱83顶持，使热量从周边沿风扇82和固定柱83传导，在长时间使用后易造成固定柱83的松动，而无法准确地将固定柱83垂直固定，且因支撑处尺寸过小，易造成转动不顺的现象，严重者更因风扇的偏斜而产生推动和噪音。
本实用新型的目的在于提供一种转动顺畅且能消除震动和噪音的散热风扇。
本实用新型的目的是通过以下技术手段实现的：一种散热风扇，由一座体、一驱动线圈和一风扇组成，其特征在于：在座体中央设一可供驱动线圈和风扇套置固定的固定柱；驱动线圈设在一电路板上；风扇的内沿套置一磁环，而其旋转座的周缘上、下位置设有间隔排列的双层叶片。
本实用新型的优点是：散热效率高，转动顺畅，无振动和噪音，使用寿命长。
以下结合附图详细说明本实用新型的结构：
图1为已有风扇的结构示意图。
图2为本实用新型的立体图
图3为本实用新型的立体分解图
图4本实用新型的风扇结构图
图5为本实用新型的剖面图
如图1、图2和图3所示，本实用新型设有一呈方形的座体1，座体1的中央设有一固定柱11，固定柱11的顶缘设一环状沟槽111，固定柱11的一侧设有两突柱12，一驱动线圈2和一风扇4套置固定在固定柱11上，并容置在座体1内；驱动线圈2设在一控制电路板21上，电路板21上设有与座体1的突柱12对应的透孔211，以便线圈2套入固定柱11後，以透孔211卡合于突柱12，将线圈2固定；风扇4的内缘套置一磁环3，且风扇4的旋转座41的周缘上、下位置设有间隔排列的双层叶片42，并在其表面中心设一圆形凹槽43，凹槽43内套置一轴承5和一固定环6，一C形扣件7夹固在座体1固定柱11的沟槽111，使轴承5的中心孔51嵌固在固定柱11，而其外缘则紧密套固于风扇4的凹槽43，当风扇4被驱动线圈2驱动而旋转时，能够借轴承5的滑动，而使其转动更为顺畅，且防止振动和噪音的产生，籍双层叶片42使散热效率提高。
如图4所示，风扇4在套合座体1的固定柱11後，驱动线圈2套合于风扇4的凹槽43的外缘，轴承5则在风扇4的凹槽43套入固定柱11後，将轴承5的中心孔51嵌套在固定柱11从凹桧43露出的部分，使其中心孔51及外缘分别与固定柱11和凹槽43紧密嵌合，再在轴承5上方套入一固定环6後，以一C形扣件7夹固在固定柱11的项缘沟槽111，以防止轴承5的不当晃动。如此，当风扇4经由线圈2的驱动而旋转时，能够因轴承5的滑动而更为顺畅，且可避免风扇4因固定柱11与扇叶4的垂直度无法克服而产生的偏斜，造成振动及噪音的现象，并可提高使用寿命。

Claims (1)

1、一种散热风扇，由一座体、一驱动线圈和一风扇组成，其特征在于：在座体中央设一可供驱动线圈和风扇套置固定的固定柱；驱动线圈设在一电路板上；风扇的内沿套置一磁环，而其旋转座的周缘上、下位置设有间隔排列的双层叶片。
CN00258349U 2000-10-24 2000-10-24 散热风扇 Expired - Fee Related CN2456211Y (zh)

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CN00258349U CN2456211Y (zh) 2000-10-24 2000-10-24 散热风扇

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010081294A1 (zh) * 2009-01-14 2010-07-22 Qin Biao 轴流式电子散热风扇
US9732757B2 (en) 2011-11-10 2017-08-15 Delta Electronics, Inc. Thin fan and manufacturing method thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010081294A1 (zh) * 2009-01-14 2010-07-22 Qin Biao 轴流式电子散热风扇
US9732757B2 (en) 2011-11-10 2017-08-15 Delta Electronics, Inc. Thin fan and manufacturing method thereof

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C14 Grant of patent or utility model
GR01 Patent grant
ASS Succession or assignment of patent right

Owner name: BAO-RUI TECHNOLOGY CO., LTD.

Free format text: FORMER OWNER: LIU HONGCAI

Effective date: 20061110

C41 Transfer of patent application or patent right or utility model
TR01 Transfer of patent right

Effective date of registration: 20061110

Address after: Taoyuan County of Taiwan Province

Patentee after: Enermax Technology Corporation

Address before: Taoyuan County of Taiwan Province

Patentee before: Liu Hongcai

C19 Lapse of patent right due to non-payment of the annual fee
CF01 Termination of patent right due to non-payment of annual fee