Lg Electronics Inc.

Lg Innotek Co., Ltd.

Jung Soo Yang

Joung Young Joung

Hyun Seung Seo

Sang Woo Hwang

Sun Min Lee

Seung Il Lee

Byung Lok Jeon

Hoon Jai Jung

Sa Rim Choi

An embodiment presents a motor comprising: a shaft; a rotor to which the shaft is coupled; and a stator which is disposed at the exterior of the rotor, wherein: the stator comprises a stator core and a coil which is wound around the stator core; the stator core comprises a yoke, a tooth which protrudes from the yoke, and a first groove and a second groove which are formed on the inner surface of the tooth; and distances from the center of the circumferential direction of the tooth to the first groove and the second groove are different from each other. Accordingly, the motor can reduce cogging torque through a design for the grooves disposed to be asymmetrical with reference to the center of the tooth.

Rotor and motor comprising same

Mobile phone

Cellular phone

Growing community of inventors

Seoul, South Korea

Jung Soo Yang