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公开(公告)号：US20010031209A1
公开(公告)日：2001-10-18
申请号：US09833584
申请日：2001-04-13
IPC分类号： F04B035/04 , F04B017/00
CPC分类号： H02K7/14 , F04D25/08 , F04D29/661 , H02K29/03
摘要： In a conventional blowing apparatus, vibration is increased depending upon a combination of rotor magnetic poles, the number of stator salient poles and blades of a fan. In a blowing apparatus comprising a stator having a core including a M-number of salient poles, and a rotor having permanent magnets having a P-number of magnetic poles rotatably disposed such as to be opposed to magnetic pole surfaces of the stator, the stator and the rotor, in combination, forming a motor for rotating a fan having a N-number of blades, mNnullnM or mNnullnP is satisfied. With this feature, a synergism between vibration generated by cogging torque of the motor and vibration generated by rotation of the fan is moderated, and vibration and noise are reduced.
摘要翻译： 在传统的吹风装置中，根据转子磁极的组合，定子凸极的数量和风扇的叶片的组合，振动增加。 在包括具有M个凸极的芯的定子的鼓风装置中，以及具有可旋转地设置为与定子的磁极表面相对的P数个的磁极的永磁体的转子，定子 并且转子组合地形成用于使具有N数个叶片的风扇旋转的马达，mN <> nM或mN <> nP。 利用该特征，由于电动机的齿槽转矩产生的振动与风扇旋转产生的振动之间的协同作用受到缓和，减少了振动和噪音。
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公开(公告)号：US20010041136A1
公开(公告)日：2001-11-15
申请号：US09833583
申请日：2001-04-13
发明人： Hiroyasu Fujinaka
IPC分类号： F04D029/52
CPC分类号： F04D25/08 , F04D25/0613 , Y10S415/915
摘要： A blowing apparatus with improved energy efficiency, comprising: a circular wall formed at a distance from a blade end of a fan; a first region where an inner diameter is enlarged so that a clearance with the blade end becomes substantially wide, and a second region having a narrower clearance with the blade end and formed with a slit, both regions being on a suction side of the circular wall; and an air pocket portion provided between an outer circumference of the circular wall and an outer peripheral portion of the housing.
摘要翻译： 一种具有提高能量效率的吹风装置，包括：与风扇叶片一端距离形成的圆形壁; 第一区域，其内径扩大，使得与刀片端部的间隙变得基本宽，以及与刀片端部具有较窄间隙并形成有狭缝的第二区域，两个区域位于圆形壁的吸入侧 ; 以及设置在所述圆形壁的外周和所述壳体的外周部之间的气穴部。
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公开(公告)号：US20020076323A1
公开(公告)日：2002-06-20
申请号：US10005157
申请日：2001-12-07
发明人： Hiroyasu Fujinaka
IPC分类号： F04D029/54
CPC分类号： F04D29/547 , F04D25/0613 , F04D29/667
摘要： It is an object of the present invention to improve energy efficiency of an air blower. An annular wall is formed to extend from a suction-side end of a housing body toward a discharge side of a blade tip of a fan so as to provide an air pocket between the housing body and the annular wall. Improvements are made to joint ends of spokes to the annular wall adjacent the air pocket, or to inclination directions of the spokes, thereby improving performance of the air blower or thinning the air blower.
摘要翻译： 本发明的目的是提高鼓风机的能量效率。 环形壁形成为从壳体的吸入侧端部朝向风扇的叶片尖端的排出侧延伸，以在壳体和环形壁之间提供气穴。 对轮辐的连接端部进行与气囊相邻的环状壁的倾斜方向，或轮辐的倾斜方向的改进，从而提高送风机的性能，或者使鼓风机变薄。
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公开(公告)号：US20020047385A1
公开(公告)日：2002-04-25
申请号：US09939824
申请日：2001-08-28
发明人： Yoshiaki Fukuda , Koji Kuyama , Toshio Uehara , Kazuhito Itakura , Chiaki Yamamoto , Shigeru Yoshida , Hiroyasu Fujinaka , Mikio Umehara , Noriyoshi Sato
IPC分类号： H02K005/00
CPC分类号： H02K5/00 , H02K5/225 , H02K7/063 , H02K2211/03
摘要： Brushless motors for portable information equipment that can be simultaneously reflow-soldered to a substrate and efficiently and densely mounted thereon in such a way that the coupled portion between the motor and the substrate has a high impact resistance, thereby providing small and reliable portable information equipment having a high productivity. The brushless motor including a housing having a bottom surface, a side surface, and a top surface, the bottom surface being located adjacent and opposite to a substrate of equipment; a plurality of lands (2a, 2e) on the bottom surface that can be mechanically or electrically joined with the substrate of the equipment; a stator (1), a bearing device (3), and a rotor (4) inside said housing, the stator (1) having a stator core (6) and a coil (7) wound around the stator core (6), the rotor (4) having a magnet (13) and being supported by the bearing device (3) so as to rotatably surround the periphery of the stator (1), the rotor (4) further including a circular weight (14).
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公开(公告)号：US20020028137A1
公开(公告)日：2002-03-07
申请号：US09986271
申请日：2001-11-08
发明人： Hiroyasu Fujinaka , Shigeru Otsuka
IPC分类号： F04D029/44
CPC分类号： F04D29/667 , F04D25/0613 , F04D29/526 , Y10S415/914 , Y10S425/058
摘要： The object of the present invention is to provide a blower that improves the P-Q characteristic and reduces noise. An apparatus according to the present invention is a blower that sucks air inside through slits (6) provided in an annular wall (2), wherein the blade thickness near a blade end s is progressively reduced toward the front end, and the location F of the maximum thickness gradually moves back toward a blade trailing edge side u2 so as to make the blade advance angle near the front end larger than in other locations. In addition, the width of a slit is made wider in sections near a spacer than in other sections. Alternatively, notches are provided in the outer perimeter of annular plates near the spacers so as to reduce the radial length of the annular plates. This arrangement improves the P-Q characteristic and reduces noise.
摘要翻译： 本发明的目的是提供一种提高P-Q特性并降低噪音的鼓风机。 根据本发明的装置是通过设置在环形壁（2）中的狭缝（6）吸入空气的鼓风机，其中叶片端部s附近的叶片厚度朝向前端逐渐减小，并且位置F 最大厚度逐渐朝向叶片后缘侧u2移动，以使靠近前端的叶片前进角比其他位置更大。 此外，狭缝的宽度在间隔物附近比在其他部分更宽。 或者，在隔板附近的环形板的外周设置切口，以减小环形板的径向长度。 这种布置提高了P-Q特性并降低了噪音。
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