MOTOR

PROBLEM TO BE SOLVED: To provide a motor having a heat radiation structure which enables reduction of a dimension in an axial direction and can be easily assembled.SOLUTION: A motor 100 includes: a rotor 101 having a rotary shaft 101a extending in a vertical direction; a stator 102 facing the rotor;...

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Bibliographic Details
Main Authors YAMASHITA YOSHIAKI, HATTORI TAKASHI, KIZU TAKAHIRO
Format Patent
LanguageEnglish
Japanese
Published 05.10.2017
Subjects
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Summary:PROBLEM TO BE SOLVED: To provide a motor having a heat radiation structure which enables reduction of a dimension in an axial direction and can be easily assembled.SOLUTION: A motor 100 includes: a rotor 101 having a rotary shaft 101a extending in a vertical direction; a stator 102 facing the rotor; a housing 1 holding the stator; a heat sink 2 attached to the housing; and a circuit board 3 on which electronic components 4 are mounted, the circuit board 3 disposed on an upper surface of the heat sink. The electronic components include a heating element 4a. The housing has: a cylindrical part 1a; and a flange part 1d extending from an upper end of the cylindrical part to the outer side in a radial direction. The heat sink is attached to an upper surface of the flange part by using a fixing member 6. The heating element contacts with the heat sink through a heat conduction member.SELECTED DRAWING: Figure 1 【課題】軸方向寸法を小さくして、容易に組み立て可能な放熱構造を有するモータを提供する。【解決手段】モータ100は、上下方向に伸びる回転軸101aを有するロータ101と、ロータに対向するステータ102と、ステータを保持するハウジング1と、ハウジングに取り付けられるヒートシンク2と、電子部品4が実装されてヒートシンクの上面に配される回路基板3と、を備える。電子部品が発熱素子4aを含む。ハウジングが、筒状の筒部1aと、筒部の上端から径方向の外側に延びるフランジ部1dと、を有する。ヒートシンクが、フランジ部の上面に固定部材6を用いて取り付けられる。発熱素子が熱伝導部材を介してヒートシンクに接する。【選択図】図1
Bibliography:Application Number: JP20160071697