公开(公告)号：US08235650B2

公开(公告)日：2012-08-07

申请号：US11946452

申请日：2007-11-28

申请人： Bao-Hua Liang ,  Yong-Kang Zhang ,  Jian-Feng Yan ,  Ying-Min Huang

发明人： Bao-Hua Liang ,  Yong-Kang Zhang ,  Jian-Feng Yan ,  Ying-Min Huang

IPC分类号： F04D29/04 ,  F04D29/46 ,  F16C39/06 ,  H02K7/09

CPC分类号： G06F1/20 ,  F04D25/062 ,  F04D25/0626 ,  F04D29/051 ,  F16C25/045 ,  H01L23/467 ,  H01L2924/0002 ,  H02K5/1675 ,  H02K7/09 ,  Y10S384/903 ,  H01L2924/00

摘要： A cooling fan includes a fan housing (30) having a central tube (34) extending upwardly therefrom, a bearing (60) being received in the central tube, a stator (20) being mounted around the central tube, and a rotor (10) having a shaft (18) extending through the bearing. At least one notch (180, 184) is defined in an end of the shaft. A balance structure (62) is mounted around the shaft, and has a portion facing and surrounding an upper portion of the at least one notch of the shaft. The balance structure is made of magnetic material, which can attract the shaft downward to thereby counter the upward force generated by the rotor when it is driven to rotate. Accordingly, the noise problem incurred by the floating of the rotating rotor can be resolved by the present invention.

摘要翻译： 冷却风扇包括具有从其向上延伸的中心管（34）的风扇壳体（30），容纳在中心管中的轴承（60），围绕中心管安装的定子（20）和转子 ）具有延伸穿过轴承的轴（18）。 至少一个凹口（180,184）被限定在轴的端部。 平衡结构（62）安装在轴周围，并且具有面向并围绕轴的至少一个凹口的上部的部分。 平衡结构由磁性材料制成，其可以向下吸引轴，从而抵抗转子在被驱动旋转时产生的向上的力。 因此，通过本发明能够解决旋转转子的浮动引起的噪声问题。

公开(公告)号：US07927074B2

公开(公告)日：2011-04-19

申请号：US11854479

申请日：2007-09-12

申请人： Hong Sun ,  Yong-Kang Zhang ,  Ying-Min Huang ,  Jian-Feng Yan

发明人： Hong Sun ,  Yong-Kang Zhang ,  Ying-Min Huang ,  Jian-Feng Yan

IPC分类号： F01D5/28

CPC分类号： F04D25/0613 ,  F04D29/646

摘要： A fan rotor includes a hub (10), a plurality of blades (20) radially disposed around the hub, and a magnet (30) located in an inner side of the hub. The hub includes a top wall (12) and a sidewall (14) surrounding the top wall. A plurality of spaced first ribs (17) is disposed between the top wall of the hub and a top wall of the magnet. A plurality of spaces (171) is formed between adjacent first ribs for accommodating equilibrium clay (50) therein.

摘要翻译： 风扇转子包括毂（10），围绕轮毂径向设置的多个叶片（20）和位于轮毂内侧的磁体（30）。 轮毂包括顶壁（12）和围绕顶壁的侧壁（14）。 多个间隔开的第一肋（17）设置在轮毂的顶壁和磁体的顶壁之间。 在相邻的第一肋之间形成多个空间（171），用于在其中容纳平衡粘土（50）。

公开(公告)号：US20090035162A1

公开(公告)日：2009-02-05

申请号：US11845740

申请日：2007-08-27

申请人： JIAN-FENG YAN ,  YONG-KANG ZHANG ,  YING-MIN HUANG ,  HONG SUN

发明人： JIAN-FENG YAN ,  YONG-KANG ZHANG ,  YING-MIN HUANG ,  HONG SUN

IPC分类号： F04B17/03

CPC分类号： F04D29/051 ,  F04D25/062 ,  F04D25/0646

摘要： A cooling fan includes a fan housing (10) having a central tube (14) extending upwardly therefrom, a bearing (30) received in the central tube, a stator (40) mounted around the central tube, and a rotor (20). The rotor includes a hub (22), a magnet (28) adhered to the hub, and a shaft (24) extending from the hub into the bearing. The stator includes a stator core (42) having a ring-shaped main body (420) and a plurality of claws extending radially and outwardly from the main body, coils (44) being wound on the claws, and a PCB (426) being electrically connected to the coils. At least one balancing structure (100) made of magnetizable material extends from the printed circuit board corresponding to a position between two adjacent claws of the stator core and exerts a downwardly attractive, magnetic force on the magnet.

摘要翻译： 冷却风扇包括具有从其向上延伸的中心管（14）的风扇壳体（10），容纳在中心管中的轴承（30），围绕中心管安装的定子（40）和转子（20）。 转子包括轮毂（22），粘附到轮毂的磁体（28）和从轮毂延伸到轴承中的轴（24）。 定子包括具有环形主体（420）的定子芯（42）和从主体径向向外延伸的多个爪，卷绕在爪上的线圈（44）和PCB（426） 电连接到线圈。 由可磁化材料制成的至少一个平衡结构（100）从对应于定子芯的两个相邻爪之间的位置的印刷电路板延伸，并向磁体施加向下吸引力的磁力。

公开(公告)号：US20090035149A1

公开(公告)日：2009-02-05

申请号：US11854479

申请日：2007-09-12

申请人： HONG SUN ,  YONG-KANG ZHANG ,  YING-MIN HUANG ,  JIAN-FENG YAN

发明人： HONG SUN ,  YONG-KANG ZHANG ,  YING-MIN HUANG ,  JIAN-FENG YAN

IPC分类号： F01D25/00

CPC分类号： F04D25/0613 ,  F04D29/646

摘要： A fan rotor includes a hub (10), a plurality of blades (20) radially disposed around the hub, and a magnet (30) located in an inner side of the hub. The hub includes a top wall (12) and a sidewall (14) surrounding the top wall. A plurality of spaced first ribs (17) is disposed between the top wall of the hub and a top wall of the magnet. A plurality of spaces (171) is formed between adjacent first ribs for accommodating equilibrium clay (50) therein.

摘要翻译： 风扇转子包括毂（10），围绕轮毂径向设置的多个叶片（20）和位于轮毂内侧的磁体（30）。 轮毂包括顶壁（12）和围绕顶壁的侧壁（14）。 多个间隔开的第一肋（17）设置在轮毂的顶壁和磁体的顶壁之间。 在相邻的第一肋之间形成多个空间（171），用于在其中容纳平衡粘土（50）。

公开(公告)号：US20090041582A1

公开(公告)日：2009-02-12

申请号：US11946452

申请日：2007-11-28

申请人： BAO-HUA LIANG ,  YONG-KANG ZHANG ,  JIAN-FENG YAN ,  YING-MIN HUANG

发明人： BAO-HUA LIANG ,  YONG-KANG ZHANG ,  JIAN-FENG YAN ,  YING-MIN HUANG

IPC分类号： B64C27/82

CPC分类号： G06F1/20 ,  F04D25/062 ,  F04D25/0626 ,  F04D29/051 ,  F16C25/045 ,  H01L23/467 ,  H01L2924/0002 ,  H02K5/1675 ,  H02K7/09 ,  Y10S384/903 ,  H01L2924/00

摘要： A cooling fan includes a fan housing (30) having a central tube (34) extending upwardly therefrom, a bearing (60) being received in the central tube, a stator (20) being mounted around the central tube, and a rotor (10) having a shaft (18) extending through the bearing. At least one notch (180, 184) is defined in an end of the shaft. A balance structure (62) is mounted around the shaft, and has a portion facing and surrounding an upper portion of the at least one notch of the shaft. The balance structure is made of magnetic material, which can attract the shaft downward to thereby counter the upward force generated by the rotor when it is driven to rotate. Accordingly, the noise problem incurred by the floating of the rotating rotor can be resolved by the present invention.

摘要翻译： 冷却风扇包括具有从其向上延伸的中心管（34）的风扇壳体（30），容纳在中心管中的轴承（60），围绕中心管安装的定子（20）和转子 ）具有延伸穿过轴承的轴（18）。 至少一个凹口（180,184）被限定在轴的端部。 平衡结构（62）安装在轴周围，并且具有面向并围绕轴的至少一个凹口的上部的部分。 平衡结构由磁性材料制成，其可以向下吸引轴，从而抵抗转子在被驱动旋转时产生的向上的力。 因此，通过本发明能够解决旋转转子的浮动引起的噪声问题。