Title:
ELECTRIC COMPRESSOR HAVING BUILT-IN INVERTER CIRCUIT BOARD
Document Type and Number:
WIPO Patent Application WO/2021/040140
Kind Code:
A1
Abstract:
The present invention provides an electric compressor having a built-in inverter circuit board, the electric compressor comprising: an inverter receiving space formed at the outer surface of a housing in which a rotor and a rotary shaft are disposed at the center thereof, a stator is disposed outside the rotor while being spaced apart therefrom, and the rotor and the rotary shaft are rotated by electromagnetic induction from the stator; a circuit board bracket coupled inside the inverter receiving space so as to fix an inverter circuit board in the inverter receiving space; the inverter circuit board mounted to the circuit board bracket and electrically connected to the rotor so as to control the rotation of the rotor by means of an inverter; an annular elastic insulation member coming in surface contact with the center portion of the outer surface of the inverter circuit board; and an inverter cover coupled to the inverter receiving space by tightening of a fastening bolt while the inner surface thereof comes in surface contact with the elastic insulation member, so as to seal the inverter receiving space, whereby vibrations generated in the center portions of the inverter cover and the inverter circuit board can be reduced, and thus noise emitted to the outside can be attenuated.
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Inventors:
KANG JAE WON (KR)
KIM YONG SEOK (KR)
KIM YONG SEOK (KR)
Application Number:
PCT/KR2019/015832
Publication Date:
March 04, 2021
Filing Date:
November 19, 2019
Export Citation:
Assignee:
DOOWON HEAVY IND CO LTD (KR)
DOOWON ELECTRONICS CO LTD (KR)
DOOWON TECHNICAL COLLEGE (KR)
DOOWON ELECTRONICS CO LTD (KR)
DOOWON TECHNICAL COLLEGE (KR)
International Classes:
F04C29/00; F04C18/02
Foreign References:
| JP2008133729A | 2008-06-12 | |||
| JP2011163148A | 2011-08-25 | |||
| KR20150026989A | 2015-03-11 | |||
| JP2013096298A | 2013-05-20 | |||
| KR20160043406A | 2016-04-21 |
Attorney, Agent or Firm:
TAEBAEK INTELLECTUAL PROPERTY LAW FIRM (KR)
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