CN101363458A - 散热风扇 - Google Patents

散热风扇 Download PDF

Info

Publication number
CN101363458A
CN101363458A CNA2007100757651A CN200710075765A CN101363458A CN 101363458 A CN101363458 A CN 101363458A CN A2007100757651 A CNA2007100757651 A CN A2007100757651A CN 200710075765 A CN200710075765 A CN 200710075765A CN 101363458 A CN101363458 A CN 101363458A
Authority
CN
China
Prior art keywords
absorption member
magnetic absorption
rotating shaft
groove
bearing
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.)
Granted
Application number
CNA2007100757651A
Other languages
English (en)
Other versions
CN101363458B (zh
Inventor
梁宝华
张永康
颜剑锋
黄英敏
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.)
QUANYIDA TECHNOLOGY (FOSHAN) Co Ltd
Original Assignee
Hong Jun Precision Industry Co ltd
Fuzhun Precision Industry Shenzhen 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 Hong Jun Precision Industry Co ltd, Fuzhun Precision Industry Shenzhen Co Ltd filed Critical Hong Jun Precision Industry Co ltd
Priority to CN2007100757651A priority Critical patent/CN101363458B/zh
Priority to US11/946,452 priority patent/US8235650B2/en
Publication of CN101363458A publication Critical patent/CN101363458A/zh
Application granted granted Critical
Publication of CN101363458B publication Critical patent/CN101363458B/zh
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/16Constructional details or arrangements
    • G06F1/20Cooling means
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04DNON-POSITIVE-DISPLACEMENT PUMPS
    • F04D25/00Pumping installations or systems
    • F04D25/02Units comprising pumps and their driving means
    • F04D25/06Units comprising pumps and their driving means the pump being electrically driven
    • F04D25/0606Units comprising pumps and their driving means the pump being electrically driven the electric motor being specially adapted for integration in the pump
    • F04D25/0613Units 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
    • F04D25/062Details of the bearings
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04DNON-POSITIVE-DISPLACEMENT PUMPS
    • F04D25/00Pumping installations or systems
    • F04D25/02Units comprising pumps and their driving means
    • F04D25/06Units comprising pumps and their driving means the pump being electrically driven
    • F04D25/0606Units comprising pumps and their driving means the pump being electrically driven the electric motor being specially adapted for integration in the pump
    • F04D25/0613Units 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
    • F04D25/0626Details of the lubrication
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04DNON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00Details, component parts, or accessories
    • F04D29/05Shafts or bearings, or assemblies thereof, specially adapted for elastic fluid pumps
    • F04D29/051Axial thrust balancing
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04DNON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00Details, component parts, or accessories
    • F04D29/05Shafts or bearings, or assemblies thereof, specially adapted for elastic fluid pumps
    • F04D29/056Bearings
    • F04D29/058Bearings magnetic; electromagnetic
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K5/00Casings; Enclosures; Supports
    • H02K5/04Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/16Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields
    • H02K5/167Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields using sliding-contact or spherical cap bearings
    • H02K5/1675Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields using sliding-contact or spherical cap bearings radially supporting the rotary shaft at only one end of the rotor
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C25/00Bearings for exclusively rotary movement adjustable for wear or play
    • F16C25/02Sliding-contact bearings
    • F16C25/04Sliding-contact bearings self-adjusting
    • F16C25/045Sliding-contact bearings self-adjusting with magnetic means to preload the bearing
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L23/00Details of semiconductor or other solid state devices
    • H01L23/34Arrangements for cooling, heating, ventilating or temperature compensation ; Temperature sensing arrangements
    • H01L23/46Arrangements for cooling, heating, ventilating or temperature compensation ; Temperature sensing arrangements involving the transfer of heat by flowing fluids
    • H01L23/467Arrangements for cooling, heating, ventilating or temperature compensation ; Temperature sensing arrangements involving the transfer of heat by flowing fluids by flowing gases, e.g. air
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L2924/00Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
    • H01L2924/0001Technical content checked by a classifier
    • H01L2924/0002Not covered by any one of groups H01L24/00, H01L24/00 and H01L2224/00
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K7/00Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/08Structural association with bearings
    • H02K7/09Structural association with bearings with magnetic bearings
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S384/00Bearings
    • Y10S384/90Cooling or heating
    • Y10S384/903Retaining ring

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Human Computer Interaction (AREA)
  • General Physics & Mathematics (AREA)
  • Power Engineering (AREA)
  • Electromagnetism (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)

Abstract

一种散热风扇,包括一扇框、一转子构件、一定子构件及一轴承系统,该扇框的中央突设形成一轴座,该定子构件套设于轴座的外缘,该轴承系统位于轴座内,其包括一轴承,该转子构件具有穿设该轴承内部的一转轴,该转轴的顶端和底端的至少其中一端从外表面向内凹陷形成一凹槽,该轴承系统还包括至少一磁吸件,该至少一磁吸件部分对正该至少一凹槽的上半段而环设于转轴外围,在磁吸件与转轴之间形成一环形空间。该散热风扇利用磁吸件的磁吸力,以持续吸引转轴,维持转子构件转动的平衡。

Description

散热风扇
技术领域
本发明涉及一种散热风扇,尤指一种转子可维持平衡转动的散热风扇。
背景技术
现有散热风扇一般包括一定子及环设于该定子外围并可相对定子转动的一转子,该转子包括一轮毂、从轮毂垂直延伸的一转轴及环设于轮毂外围的若干扇叶,该定子中央设置一轴承,转子的转轴收容于该轴承内定位。该散热风扇工作时,转子相对于定子作高速旋转运动,扇叶转动时产生气流,而气流对该扇叶与转子产生向上拉引的作用力以及转子自身的重力因素,从而导致转子的转轴高速旋转时会有轴向振荡、不稳定现象,使电路板上安装的霍耳元件(Hall sensor)与转子上的磁环之间的距离加大,进而使霍耳元件不能正常感应磁环的永久磁场变化,导致风扇的不能正常运转,同时因感应不良产生振动,造成运转时噪音量的增加。
目前,本领域技术人员主要是通过在散热风扇结构中导入转子的加强定位设计,以达到维持转子转动平衡的要求。如中国大陆专利第02201250.8号,于转轴的末端设一薄片状磁铁,该磁铁的顶面与转轴的末端相抵靠,以支撑该转轴旋转,同时产生轴向磁吸力吸引转轴以稳定转子。然而,该转轴的末端直接抵靠于磁铁的顶面上,而一般磁铁的材质不耐磨损,因此转轴运转使用一段时间之后,将致使磁铁的顶面因磨损产生凹陷,这样转子将随之向下偏位而丧失组装时的精准度,进而影响到风扇工作的正常状态,不能达到持续有效地维持转子转动平衡的要求,降低了风扇的使用寿命。
发明内容
有鉴于此,有必要提供一种能持续有效地维持转子转动平衡的散热风扇。
一种散热风扇,包括一扇框、一转子构件、一定子构件及一轴承系统,该扇框的中央突设形成一轴座,该定子构件套设于轴座的外缘,该轴承系统位于轴座内,其包括一轴承,该转子构件具有穿设该轴承内部的一转轴,该转轴的顶端和底端的至少其中一端从外表面向内凹陷形成一凹槽,该轴承系统还包括至少一磁吸件,该至少一磁吸件部分对正该至少一凹槽的上半段而环设于转轴外围,在磁吸件与转轴之间形成一环形空间。
该散热风扇的磁吸件与凹槽的上半段部分对正,且该磁吸件与转轴之间形成环形空间,使磁吸件对凹槽上方部分的转轴产生一向下的磁吸力以持续向下吸引转轴,使霍耳元件与转子上的磁环之间的距离始终保持相对固定,使霍耳元件始终能感应磁环的永久磁场变化,同时又由于该磁吸件套设于转轴外围,不会因转轴的转动而磨损,可持续有效地维持转子构件平衡转动,使散热风扇具有更长使用寿命。
附图说明
图1为散热风扇的立体分解示意图。
图2为图1的组装图。
图3为图2沿III-III线的剖面示意图。
图4为图1中上磁吸件的放大示意图。
图5为磁吸件安装于散热风扇的轴座内的俯视图。
图6为磁吸件的另一实施例的示意图。
具体实施方式
请参阅图1及图2,该散热风扇包括一扇框30、一轴承系统60、一转子构件10及一定子构件20,该转子构件10设于该定子构件20的外围,转子构件10和定子构件20均收容于扇框30内。
请一并参阅图3,扇框30包括一底部32和一轴座34,该轴座34从扇框30的底部32中央向上突设形成。轴座34的顶端开口,其中央形成一收容空间36。该轴座34顶端的内圆周处形成一环形凹陷38,该环形凹陷38与收容空间36相连通。该轴座34的底端向内凸出形成一台阶31(参图3)。
定子构件20套设、固装于轴座34外缘,该定子构件20包括一电路板26、固定于电路板26上的由若干层硅钢片叠设形成的一电枢22及分别罩设于电枢22上下两端的上、下绝缘片28a、28b。电枢22上缠绕绕线24用以产生交替变化的磁场,该绕线24与电路板26电性连接,绝缘片28a、28b可避免电枢22与绕线24电性接触。
转子构件10包括一轮毂12、一贴设于轮毂12内侧缘的磁环16及一转轴18,该轮毂12中央形成一转轴轴座120,其外缘放射状突设若干扇叶14。该转轴18的顶端固定于转轴轴座120上,并向下延伸。请参阅图3,该转轴18的外表面于靠近轮毂12的顶端185的位置处向内凹陷形成一环形的第一凹槽180,同时,该转轴18的外表面于远离轮毂12的底端186的位置处向内凹陷形成环形的第二凹槽184。
轴承系统60通过轴座34顶端的开口装设于其收容空间36内,包括一轴承61、上、下磁吸件62a、62b、一扣环63、一耐磨片67及一挡油环68。耐磨片67由耐磨性能好的材料做成,设置于轴座34的收容空间36的底端。扣环63设于轴座34内的台阶31上,其中央形成一中心通孔630。上、下磁吸件62a、62b分别设于轴承61的顶端和底端,共同收容于轴座34的收容空间36内位于台阶31以上的部分。请一并参阅图4,为本实施例中上磁吸件62a的放大示意图,该上磁吸件62a为一大致呈四边形的柱状磁铁,中央形成一圆形通孔620a,四角均形成一圆弧倒角624a,该下磁吸件62b的大小和形状与上磁吸件62a的大小和形状大致相同,其上亦对应形成圆形通孔620b及圆弧倒角624b。该轴承61的内部形成一轴向通孔610,轴承61的外表面形成有若干可供润滑油回流的沟槽613,任一沟槽613从轴承61顶面的轴向通孔610处沿径向向外圆周表面延伸,沿轴向贯穿该外圆周表面后,继续由外圆周表面沿轴承61底面径向向内延伸,指向轴承61底面的轴向通孔610处。上、下磁吸件62a、62b的圆弧倒角624a、624b的直径大小与轴座34的收容空间36位于台阶31以上部分的直径大小大致相同,通过该圆弧倒角624a、624b分别与轴座34的内表面相抵靠而将该磁吸件62a、62b稳固地安装于轴座34内。如图5所示为上、下磁吸件62a、62b安装于轴座34内的俯视图,其中央的圆形通孔620a、620b与轴承61内部的轴向通孔610对齐且相互连通,每一磁吸件62a、62b的四个圆弧倒角624a、624b分别与轴座34的内表面相抵靠,四条边对应的四个侧面分别与轴座34的内表面之间形成间隙628,该间隙628与轴承61外表面的沟槽613相连通。该挡油环68的中心为一穿孔680,收容于轴座34顶端的环形凹陷38处,挡油环68的外径的大小与轴座34顶端的环形凹陷38处的直径的大小大致相同,恰好封住该轴座34顶端的开口。
如图3所示,转轴18依次穿设挡油环68中心的穿孔680、上磁吸件62a中心的圆形通孔620a、轴承61内部的轴向通孔610、下磁吸件62b中心的圆形通孔620b及扣环63的中心通孔630而旋转地收容于轴承系统60内部,其底端186与轴座34底端的耐磨片67相抵触。该转轴18顶端185的第一凹槽180的下半段与轴承61的顶端部分对正,上磁吸件62a的底面与轴承61的顶面相接触,使得该上磁吸件62a的下半段对正转轴18的第一凹槽180高出该轴承31顶面的上半段部分,于上磁吸件62a对正该第一凹槽180部分的内表面与第一凹槽180的外表面之间形成一环形空间,上磁吸件62a的上半段套设于第一凹槽180上方部分的转轴18的外围,其内表面与该转轴18的外围间隔一微小距离。该上磁吸件62a的顶面与挡油环68之间相隔一定距离,上磁吸件62a与挡油环68及轴座34共同限定形成一储油空间50。该转轴18的底端186的第二凹槽184沿轴向一半高度的位置大致与台阶31的顶端平齐,下磁吸件62b的顶面与底面分别与轴承61的底面及设置于台阶31上的扣环63的上表面相接触,使得该下磁吸件62b上半段套设于第二凹槽184上方部分的转轴18的外围,下半段对正第二凹槽184的上半段而环设于该第二凹槽184部分的转轴18的外围,于下磁吸件62b对正第二凹槽184部分的内表面与第二凹槽184的外表面之间形成另一环形空间。
该风扇工作时,通过定子构件20和转子构件10间磁场交互作用驱动转子10旋转。转轴18高速旋转的过程中,由于离心力作用沿转轴18飞溅出来的润滑油经挡油环68阻挡聚集在储油空间50,并沿轴承61的外表面的沟槽613及上、下磁吸件62a、62b的侧面与轴座34之间形成的间隙628回流,从而保证了轴承61与转轴18之间良好的的润滑性能。而且,每一磁吸件62a、62b借由与转轴18之间的环形空间形成较强的磁吸力,各自水平吸引该第一凹槽180、第二凹槽184的上半段包覆于其内部的转轴18部分,同时,倾斜向下吸引该第一凹槽180、第二凹槽184上方包覆于其上半段的转轴18部分,形成一向下的磁吸力吸引转轴18下拉,防止转轴18转动时由于离心力作用向上移动而偏位。另一方面,该磁吸件62a、62b套设于转轴18的外围时不会因为转轴18的转动而磨损,从而可持续有效地吸引转轴18,维持转子构件10持续平衡转动,降低气流对扇叶14的反作用力及转子构件10本身重力对高速运转时造成的轴向浮动影响,使电路板26上安装的霍耳元件(Hallsensor)与磁环16之间的距离始终保持相对固定,进而使霍耳元件始终能感应磁环16的永久磁场变化,维持风扇的整体正常运转。
具体实施时,该上、下磁吸件62a、62b的厚度可分别根据第一凹槽180及第二凹槽184高度的变化而适当调整,但以保证每一磁吸件62a、62b的底面位于与其对应的第一、第二凹槽180、184的一半高度的上方为宜,且其顶面位于该第一、第二凹槽180、184顶端的上方,从而使磁吸件62a、62b部分对正凹槽180、184而环设于转轴18上,于磁吸件62a、62b对正凹槽180、184部分的内表面与转轴18的外表面之间形成环形空间。该磁吸件62a、62b的底面位于凹槽180、184一半高度的上方,可避免磁吸件62a、62b对转轴18上位于凹槽180、184下方的部分产生向上的磁吸力,从而避免磁吸件62a、62b对转轴18向下磁吸力的抵消。可以理解地,该磁吸件的数量也可以为一个,即仅设置一与该转轴18顶端185的第一凹槽180相对应的上磁吸件62a或者与转轴18的底端186相对应的下磁吸件62b,该磁吸件62a、62b的形状也可以是任意多边形的柱状磁铁,如图6所示为本发明的另一实施例,该磁吸件62c为五边形,五角均形成一圆弧倒角624c,中央形成一圆形通孔620c,该圆弧倒角624c的直径大小与轴座34内收容空间36位于台阶31以上部分的直径大小大致相同,通过该五个圆弧倒角624c分别与轴座34的内表面相抵靠而将该磁吸件62c稳固地安装于轴座34内。

Claims (10)

1.一种散热风扇,包括一扇框、一转子构件、一定子构件及一轴承系统,该扇框的中央突设形成一轴座,该定子构件套设于轴座的外缘,该轴承系统位于轴座内,其包括一轴承,该转子构件具有穿设该轴承内部的一转轴,其特征在于:该转轴的顶端和底端的至少其中一端从外表面向内凹陷形成一凹槽,该轴承系统还包括至少一磁吸件,该至少一磁吸件部分对正该至少一凹槽的上半段而环设于转轴外围,在磁吸件与转轴之间形成一环形空间。
2.如权利要求1所述的散热风扇,其特征在于:该磁吸件的上端套设于转轴位于凹槽上方部分的外围,而下端与凹槽对正。
3.如权利要求1所述的散热风扇,其特征在于:该转轴的顶端和底端均形成凹槽,该至少一磁吸件包括分别与该顶端凹槽相对应的第一磁吸件及与该底端凹槽相对应的第二磁吸件。
4.如权利要求3所述的散热风扇,其特征在于:该转轴顶端的凹槽的上半段高出轴承的顶面,该第一磁吸件的下端与该凹槽高出轴承顶面的上半段对正。
5.如权利要求3所述的散热风扇,其特征在于:该轴座内向内凸出形成一台阶,该第二磁吸件位于该台阶与轴承的底面之间。
6.如权利要求3所述的散热风扇,其特征在于:该轴座的顶端还安装有一挡油环,所述挡油环位于第一磁吸件的上方且与第一磁吸件间隔一定距离,所述第一磁吸件与挡油环及轴座共同限定形成一储油空间。
7.如权利要求1所述的散热风扇,其特征在于:该磁吸件的底面与该凹槽轴向高度的一半刚好相齐平。
8.如权利要求1所述的散热风扇,其特征在于:该磁吸件为多边形的柱状磁铁,相邻两条边的连接处分别形成圆弧倒角,该圆弧倒角分别与轴座的内表面相抵靠,各边与轴座的内表面之间分别形成间隙。
9.如权利要求8所述的散热风扇,其特征在于:该磁吸件为四边形或五边形。
10.如权利要求8所述的散热风扇,其特征在于:该轴承的外表面形成有若干沟槽,所述沟槽与磁吸件外侧的间隙相连通。
CN2007100757651A 2007-08-10 2007-08-10 散热风扇 Active CN101363458B (zh)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN2007100757651A CN101363458B (zh) 2007-08-10 2007-08-10 散热风扇
US11/946,452 US8235650B2 (en) 2007-08-10 2007-11-28 Cooling fan with balance structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2007100757651A CN101363458B (zh) 2007-08-10 2007-08-10 散热风扇

Publications (2)

Publication Number Publication Date
CN101363458A true CN101363458A (zh) 2009-02-11
CN101363458B CN101363458B (zh) 2010-10-06

Family

ID=40346723

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2007100757651A Active CN101363458B (zh) 2007-08-10 2007-08-10 散热风扇

Country Status (2)

Country Link
US (1) US8235650B2 (zh)
CN (1) CN101363458B (zh)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104564732A (zh) * 2013-10-23 2015-04-29 台达电子工业股份有限公司 薄型风扇
CN109436349A (zh) * 2018-12-29 2019-03-08 深圳市道通智能航空技术有限公司 一种风扇组件、惯性测量组件以及无人飞行器

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9086099B2 (en) 2009-08-21 2015-07-21 Das Werk Pty Ltd Rotor coupling
TWI464551B (zh) * 2013-04-15 2014-12-11 Wistron Corp 風扇系統
FR3065123A1 (fr) * 2017-04-05 2018-10-12 Valeo Equipements Electriques Moteur Rondelle de calage utilisee dans un demarreur
US11028857B2 (en) * 2019-09-18 2021-06-08 Dell Products, Lp Cooling module with blower system having opposite, blower and impeller outlets for information handling systems

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE35718E (en) * 1988-06-22 1998-01-27 Hitachi, Ltd. Bearing apparatus
DE69425119T2 (de) * 1993-12-14 2001-02-15 Hitachi, Ltd. Aufzeichnungsplattengerät und rotierende Halterungsstruktur dafür
CN2284305Y (zh) * 1996-12-04 1998-06-17 弦峰电机股份有限公司 小型散热风扇的散热装置
JPH1175340A (ja) * 1997-06-17 1999-03-16 Nippon Densan Corp モータ
JP2001050250A (ja) * 1999-08-06 2001-02-23 Hitachi Ltd スピンドルモータ
JP2002034205A (ja) * 2000-07-17 2002-01-31 Shicoh Eng Co Ltd 含油軸受を用いたファンモータ
US6921996B2 (en) 2002-03-12 2005-07-26 Seagate Technology Llc Constant pressure magnetically preloaded FDB motor
US6567268B1 (en) * 2002-05-15 2003-05-20 Hsieh Hsin-Mao Cooling fan with magnetic liquid
US20040136845A1 (en) * 2003-01-13 2004-07-15 Hsieh Hsin-Mao Coil housing for a brushless fan
CN2672334Y (zh) * 2003-12-12 2005-01-19 德洁兴业有限公司 一种散热风扇转动组件承枢的轴承结构
US7145275B2 (en) * 2004-12-20 2006-12-05 Asia Vital Component Co., Ltd. Bearing with auxiliary magnetism
JP2007037365A (ja) 2005-07-29 2007-02-08 Nippon Densan Corp モータ
US20080238228A1 (en) * 2007-03-26 2008-10-02 Forcecon Technology Co., Ltd. Magnetic shaft of a cooling fan

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104564732A (zh) * 2013-10-23 2015-04-29 台达电子工业股份有限公司 薄型风扇
CN109436349A (zh) * 2018-12-29 2019-03-08 深圳市道通智能航空技术有限公司 一种风扇组件、惯性测量组件以及无人飞行器
CN109436349B (zh) * 2018-12-29 2024-06-11 深圳市道通智能航空技术股份有限公司 一种风扇组件、惯性测量组件以及无人飞行器

Also Published As

Publication number Publication date
US20090041582A1 (en) 2009-02-12
US8235650B2 (en) 2012-08-07
CN101363458B (zh) 2010-10-06

Similar Documents

Publication Publication Date Title
CN101363458B (zh) 散热风扇
US8207643B2 (en) Motor including a stator bobbin having a bearing abutting member
CN101294578B (zh) 散热风扇及其定子绝缘片结构
CN101311548B (zh) 散热风扇
KR101898348B1 (ko) 모터
US20130156573A1 (en) Fan
WO2005083280A1 (en) Fluid dynamic bearing mechanism for a motor
US20010043869A1 (en) Pivotal structure for an impeller of a miniature heat dissipating fan
US20070297922A1 (en) Air Blower
CN102414451A (zh) 转子组件
CN100363630C (zh) 风扇改良结构
KR20030048800A (ko) 스핀들모터
CN100552238C (zh) 散热风扇
EP1465322A3 (en) Spindle motor and disk drive unit
JP4129346B2 (ja) 動圧軸受モータ
CN105090093B (zh) 风扇
JPH0740099Y2 (ja) 軸受構造
JPH06315241A (ja) スピンドルモータおよび軸受け用部品の製造方法
TWI339558B (en) Cooling fan
JP2004135419A (ja) 記録ディスク駆動用モータ及びそれを備えた記録ディスク駆動装置
JP4325763B2 (ja) ポンプの軸受ワッシャ
JP6845743B2 (ja) ファンモータ
KR101234377B1 (ko) 베어링 가이드를 포함하는 모터의 베어링 결합구조
KR100305428B1 (ko) 반구베어링을 갖는 스핀들 모터
JPH0223087Y2 (zh)

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant
TR01 Transfer of patent right
TR01 Transfer of patent right

Effective date of registration: 20170421

Address after: Guangdong City, Chancheng City West Industrial Zone, 35 West Road, No.

Patentee after: Quanyida Technology (Foshan) Co., Ltd.

Address before: 518109 Guangdong city of Shenzhen province Baoan District Longhua Town Industrial Zone tabulaeformis tenth East Ring Road No. 2 two

Co-patentee before: Foxconn Precision Industry Co., Ltd.

Patentee before: Fuhuai (Shenzheng) Precision Industry Co., Ltd.