Invention Grant
- Patent Title: Motor and electric tool equipped with the same
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Application No.: US15537818Application Date: 2015-12-09
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Publication No.: US10530224B2Publication Date: 2020-01-07
- Inventor: Kota Kitamura , Hidenori Shimizu , Atsushi Takeyama , Motoharu Muto , Daiju Kinoshita
- Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
- Applicant Address: JP Osaka
- Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
- Current Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
- Current Assignee Address: JP Osaka
- Agency: McDermott Will & Emery LLP
- Priority: JP2014-265185 20141226
- International Application: PCT/JP2015/006122 WO 20151209
- International Announcement: WO2016/103605 WO 20160630
- Main IPC: H02K11/33
- IPC: H02K11/33 ; H02K11/21 ; H02K7/14

Abstract:
A motor includes: a stator; a rotor axially aligned with the stator; a circuit board; and a heat dissipating plate. The stator includes: an iron core including teeth; an insulator covering one end surface, in the axial direction, of the iron core; and a coil wound around the teeth. The insulator includes an electrically insulating material having a lower rate of heat transfer than a material included in the iron core. The heat dissipating plate is attached to the insulator in a state in which the heat dissipating plate is in contact with the insulator without being in contact with the iron core, and the circuit board is attached to the heat dissipating plate in a state in which the circuit board is in contact with the heat dissipating plate without being in contact with the iron core.
Public/Granted literature
- US20170353085A1 MOTOR AND ELECTRIC TOOL EQUIPPED WITH THE SAME Public/Granted day:2017-12-07
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