モータの冷却構造 - JATCO Co., Ltd.

Title:

モータの冷却構造

Document Type and Number:

Japanese Patent JP7072971

Kind Code:

B2

Abstract:

To provide a cooling structure of motor capable of cooling a motor without upsizing a case.SOLUTION: A cooling structure 10 of the motor 8 includes: a stator core 85 surrounding the outer periphery of a rotor core 81 extrapolated to a motor shaft 9; an oil passage 90 extending in a longitudinal direction in the motor shaft 9; and a continuous hole for making a perimeter of the motor shaft 9 and an oil passage 90 connect. Oil OL for cooling flows in the oil passage 90. The continuous hole includes a continuous hole 90b provided at a position corresponding to a coil end 88A on one side of the stator core 85 and a continuous hole 90a provided at a position corresponding to a coil end 88B on the other side of the stator core 85. The continuous hole 90b is formed to have an opening diameter db that is smaller than the opening diameter da of the continuous hole 90a. A guide passage (oil passage 55, oil passage 63, oil hole 601) for guiding the oil discharged from the continuous hole 90a and cooling the coil end 88B on one side to the other side of the coil end 88A is included.SELECTED DRAWING: Figure 3

Inventors:

Morishita Masaomi

Application Number:

JP2018004637A

Publication Date:

May 23, 2022

Filing Date:

January 16, 2018

Export Citation:

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