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21. 发明授权

US07557484B2 Electric motor 有权
标题翻译：电动马达
公开(公告)号：US07557484B2
公开(公告)日：2009-07-07
申请号：US10587935
申请日：2005-02-08
申请人： Yoshichika Kawashima , Shunji Kumagai
发明人： Yoshichika Kawashima , Shunji Kumagai
IPC分类号： H02K23/26
CPC分类号： H02K23/20 , H02K23/34
摘要： In an electric motor having high-speed and low-speed brushes, durability is improved and vibration/noise is reduced. The electric motor has a low-speed brush 21a, a high-speed brush 21b, and a common brush 21c. Formed in the electric motor are a first coil 7A1 which is wound between given slots 11, and a second coil 7A2 which is wound in a direction opposite to a direction of the first coil 7A1 between slots 11 existing at positions point-symmetric to the given slots 11 with respect to a center of a rotation shaft. An armature coil 7 is formed by the first and second coils 7A1 and 7A2. If the armature coil 7 is short-circuited by the high-speed brush 21b, the first coil 7A1 and the second coil 7A2 of the short-circuited armature coil 7 exist at positions symmetric to each other with respect to an axis line extending through the center of the high-speed brush 21b and the center of the rotation shaft.
摘要翻译：在具有高速和低速电刷的电动机中，耐久性得到改善并且降低了振动/噪声。电动机具有低速电刷21a，高速电刷21b和普通电刷21c。形成在电动机中的是在给定槽11之间缠绕的第一线圈7A1和在与给定的位置点对称的位置处存在的槽11之间沿与第一线圈7A1的方向相反的方向缠绕的第二线圈7A2 槽11相对于旋转轴的中心。电枢线圈7由第一和第二线圈7A1和7A2形成。如果电枢线圈7被高速电刷21b短路，则短路电枢线圈7的第一线圈7A1和第二线圈7A2相对于延伸穿过该电枢线圈的轴线彼此对称高速刷21b的中心和旋转轴的中心。

22. 发明授权

US07362031B2 Electric motor 有权
标题翻译：电动马达
公开(公告)号：US07362031B2
公开(公告)日：2008-04-22
申请号：US10570549
申请日：2004-09-01
申请人： Shigehiro Maita , Yoshichika Kawashima
发明人： Shigehiro Maita , Yoshichika Kawashima
IPC分类号： H02K1/00 , H02K1/22
CPC分类号： H02K1/265 , H02K23/405
摘要： An electric motor has an armature rotatably accommodated inside a motor housing and a pair of magnets fixed to an inner surface of the motor housing so as to face the armature. The armature has an armature core 17 fixed to a rotating shaft 16, and ten slots S1 to S10 formed on the armature core accommodate coils. These slots S1 to S10 are of four types that are different in shape, thereby enhancing a lamination factor of each coil. Also, these slots S1 to S10 are formed so as to be tilted in a rotating direction with respect to an axial direction of the rotating shaft 16. Therefore, a magnetic imbalance caused by the slots S1 to S10 being formed in varying shapes is uniformized.
摘要翻译：电动机具有可旋转地容纳在电动机壳体内的电枢和固定到电动机壳体的内表面以与电枢相对的一对磁体。衔铁具有固定在旋转轴16上的电枢铁芯17，形成在电枢铁芯上的10个槽S1〜S10容纳线圈。这些槽S1〜S10是形状不同的四种类型，从而提高每个线圈的层压系数。另外，这些槽S1〜S10形成为相对于旋转轴16的轴向沿旋转方向倾斜。因此，由形成为变化形状的槽S1〜S10所引起的磁不平衡是均匀的。

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