Title:
MOTOR
Document Type and Number:
WIPO Patent Application WO/2019/064898
Kind Code:
A1
Abstract:
Provided is a motor provided with: a motor body including a rotor and a stator; a circuit board extending in a direction orthogonal to the vertical direction; a first heat sink which is located at the lower side of the circuit board and which directly or indirectly contacts the circuit board; a second heat sink which is located at the upper side of the circuit board and which directly or indirectly contacts the circuit board; and a lid part located at the upper side of the second heat sink. The lid part includes an opening, and the second heat sink includes an exposed section exposed through the opening. Either one of the lid part or the second heat sink includes a first protrusion protruding toward the other one, and the other one includes a first recessed groove which houses the first protrusion. The first protrusion and the first recessed groove surround the exposed section when viewed vertically.
Inventors:
OGAWA HIROSHI (JP)
YAMASHITA YOSHIAKI (JP)
YAMASHITA YOSHIAKI (JP)
Application Number:
PCT/JP2018/028638
Publication Date:
April 04, 2019
Filing Date:
July 31, 2018
Export Citation:
Assignee:
NIDEC CORP (JP)
International Classes:
H02K11/30; H02K5/22; H02K9/22
Foreign References:
| US20160254719A1 | 2016-09-01 | |||
| JP2005080438A | 2005-03-24 | |||
| JP2013021903A | 2013-01-31 |
Download PDF: