• Title/Summary/Keyword: 동 다이캐스팅

Search Result 6, Processing Time 0.239 seconds

Development of 10kW Multi-gate-based Copper Die-casting High Speed 3 Phase Induction Motor (10kW 다중게이트 방식 동다이캐스팅 고속 3상 유도전동기 개발)

  • Woo, Byung-Chul;Hong, Do-Kwan;Koo, Dae-Hyun;Chun, Yun-Do;Choi, Jae-Hak;Han, Pil-Wan
    • Proceedings of the KIEE Conference
    • /
    • /
    • pp.1133-1134
    • /
    • 2011
  • 일반적으로 사용하고 있는 유도전동기의 로터는 알루미늄 다이캐스팅 기술을 적용하는 것이 보통이다. 그러나 본 연구에서는 알루미늄에 비해 융점이 높은 동 다이캐스팅 기술을 적용하여 고속 고효율의 공작기계용으로 개발하였다. 30kW급 이상의 전기자동차용과는 달리 공작기계용은 3kW급과 10kW급으로 개발하였으며 슈퍼프리미엄급에 해당되는 성능과 30,000rpm에서 그 성능을 확인하였다.

  • PDF

Unbalance Response Analysis of Copper Die Casting High Speed Induction Motor (동 다이캐스팅 고속 유도전동기의 불평형 응답 해석)

  • Hong, Do-Kwan;Jung, Seung-Wook;Woo, Byung-Chul;Koo, Dae-Hyun;Ahn, Chan-Woo
    • Transactions of the Korean Society for Noise and Vibration Engineering
    • /
    • v.22 no.7
    • /
    • pp.642-649
    • /
    • 2012
  • This paper deals with a copper die casting induction motor which has several advantages of motor performance. The developed motor is used as spindle motor in machining center. The dynamic characteristic analysis of rotor is dealt with for precision machining. The critical speed of rotor considering rotation and gyroscopic effect should be above operating speed, 18,000 rpm, and have a 201 % sufficient separation margin. Also, the 3-D unbalance vibration response analysis is performed and enabled the prediction of the expected vibration amplitude by unbalance in high speed. The unbalance vibration responses of each position on the rotor are satisfied with allowable vibration displacement of API 611 standard according to balancing G grade(G 0.4, G 2.5, G 6.3). Copper die casting high speed induction motor is successfully developed and verified by experiment.

The Study of Efficiency and Characteristics Comparison between Aluminum and Copper Die Casting Induction Motor for Improving Efficiency (유도전동기 효율향상을 위한 알루미늄 및 동 다이캐스팅 적용 시의 동작특성 및 효율 비교연구)

  • Han, Pil-Wan;Lee, Ju
    • The Transactions of The Korean Institute of Electrical Engineers
    • /
    • v.61 no.1
    • /
    • pp.70-74
    • /
    • 2012
  • Copper die casting motor (CDM) has a better design flexibility than aluminium die casting motor (ADM) because of the higher conductivity of copper. However, CDM has an economic and manufacturing weak point due to high copper price and high melting temperature compared to ADM. This paper describes a comparison of the design parameters, specifications, performances and material cost between CDM and ADM of 5.5kW_6P.

Electromagnetic Characteristic and Excitation Force Analysis of 10kW High Speed Induction Motor According to Stator Winding Specifications (고정자 권선 사양에 따른 10kW급 고속 유도전동기의 전자기적 특성 및 가진력 분석)

  • Lee, Ji-Young;Jang, Dae-Kyu;Chang, Jung-Hwan
    • Proceedings of the KIEE Conference
    • /
    • /
    • pp.748-749
    • /
    • 2015
  • 본 논문에서는 권선사양에 따른 10kW급 동 다이캐스팅 고속 유도전동기의 전자기적 특성과 전기기기의 진동을 발생시키는 고정자 치의 가진력을 분석하였다. 회전자 모델과 코일의 점적률은 일정하게 유지하면서 턴 수, 코일단면적, 고정자 슬롯의 형상을 변경하였다. 이에 따라 1, 2차 측 저항과 누설리액턴스 성분이 변화함을 확인하였고, 저항과 누설리액턴스 성분의 변화가 유도전동기의 토크, 자속밀도, 효율 특성 및 고정자 치의 가진력에 미치는 영향에 대해 분석하였다.

  • PDF

The Copper Rotor Die-casting of Single Phase Induction Motor and the Stator Design for Reducing Loss (단상유도전동기의 동 다이캐스팅과 손실 저감을 위한 고정자 설계)

  • Lee, Sang-Hoon;Kim, Ki-Chan;Kim, Kwang-Soo;Kim, Won-Ho;Kim, Soo-Yong;Lee, Ju
    • Proceedings of the KIEE Conference
    • /
    • /
    • pp.705-706
    • /
    • 2008
  • There has been, in recent years, effort to make cast copper rotors for industrial use of induction motors. Because the incorporation of copper for the conductor bars and end rings of the induction motor in place of aluminum would result in attractive improvements in motor energy efficiency. The purpose of this method is a reducing the copper loss as using higher conductivity of copper. In this paper as the single phase induction motor is studied, the stator slots and coil turn number is designed for adjusting the slot fill factor and improving its efficiency. At this time design is basis on calculation of reducing loss. And finally this paper shows that the before and after result is compared and analyzed.

  • PDF