ELECTRIC MOTOR AND COMPRESSOR HAVING THE SAME

The present invention relates to an electric motor and a compressor with the same. The electric motor of the present invention includes a stator and a rotor. The rotor may include a rotating shaft, a rotor core and a plurality of permanent magnets. The rotor core comprises: a permanent magnet insert...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	EUM SANGJOON, JUNG HEEDON, KIM JEONGHWAN, LEE INJAE, KIM MINGYU
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:	The present invention relates to an electric motor and a compressor with the same. The electric motor of the present invention includes a stator and a rotor. The rotor may include a rotating shaft, a rotor core and a plurality of permanent magnets. The rotor core comprises: a permanent magnet inserting unit formed to penetrate in an axial direction so that the permanent magnets can be inserted; and a slot formed to penetrate in an axial direction so that a core area in front of a D-axis gets smaller than a core area at the rear of the D-axis along a rotation direction of the rotor when an outer core portion of the permanent magnet inserting unit of the rotor core is divided based on the D-axis. Thereby, it is possible to suppress a decrease in inertia and suppress generation of vibration and noise due to an MPF. 본 발명은 전동기 및 이를 구비한 압축기에 관한 것이다. 본 발명의 전동기는, 스테이터; 및 로터;를 포함하고, 상기 로터는, 회전축, 로터코어; 및 복수의 영구자석;을 구비하고, 상기 로터코어는, 상기 영구자석이 삽입될 수 있게 축방향으로 관통 형성되는 영구자석삽입부; 및 상기 로터코어의 상기 영구자석삽입부의 외측 코어부분을 디축을 기준으로 구획할 때, 상기 로터의 회전방향을 따라 상기 디축의 전방의 코어면적이 상기 디축의 후방의 코어면적보다 작아지게 축방향으로 관통 형성되는 슬롯을 구비하여 구성된다. 이에 의해, 관성의 감소를 억제할 수 있고 엠피에프에 기인한 진동 및 소음 발생을 억제할 수 있다.