ELECTRIC MOTOR AND COMPRESSOR HAVING THE SAME

According to an embodiment of the present invention, an electric motor comprises: a stator; and a rotor having a rotational shaft and a rotor core press-fitted to the rotational shaft. The rotor core has a through-hole into which the rotational shaft is inserted and the through-hole has a rotation l...

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Bibliographische Detailangaben
Hauptverfasser:	HEO HYO LIM, KIM JOON HYUNG, PARK SOO DOL, PARK JAE WOO, KWON MUN SEONG
Format:	Patent
Sprache:	eng ; kor
Schlagworte:	BLASTING CONVERSION OR DISTRIBUTION OF ELECTRIC POWER DYNAMO-ELECTRIC MACHINES ELECTRICITY GENERATION HEATING LIGHTING MECHANICAL ENGINEERING POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC FLUIDS ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENTMACHINES FOR LIQUIDS ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENTPUMPS WEAPONS
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Beschreibung
Zusammenfassung:	According to an embodiment of the present invention, an electric motor comprises: a stator; and a rotor having a rotational shaft and a rotor core press-fitted to the rotational shaft. The rotor core has a through-hole into which the rotational shaft is inserted and the through-hole has a rotation locking portion configured to prevent idle rotation with respect to the rotational shaft. The rotor core is arranged so that its center is axially deviated from the center of the stator. A length at which the rotor core is press-fitted to the rotational shaft may be 50% or less of the total length of the rotor core. 본 발명의 일 실시예에 따른 전동기는, 고정자; 및 회전축과, 상기 회전축에 억지 끼움 결합된 회전자 코어를 가지는 회전자;를 포함하며, 상기 회전자 코어는 상기 회전축이 삽입되는 관통 구멍을 가지며, 상기 관통 구멍은 상기 회전축에 대해 공회전하는 것을 방지하도록 구성된 회전 걸림부를 가지며, 상기 회전자 코어는 그 중심이 상기 고정자의 중심으로부터 축 방향으로 벗어나도록 배치되며, 상기 회전자 코어가 상기 회전축에 억지 끼움 결합된 길이는, 상기 회전자 코어의 전체 길이의 50% 이하일 수 있다.