ELECTRIC COMPRESSOR

• Main Authors: FUJIWARA AMI, MAEDA TAKUMI, KONISHI TAKAFUMI, JINNO KEITA, YAMAMOTO SHIORI, HATTORI YUYA, KOIKE SHINJI
• Format: Patent
• Language: English; Korean
• Published: 05.10.2022
• Subjects: BLASTING; 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

The present invention contributes to further miniaturization of a scroll-type electric compressor. A compression part housing (13) having a first peripheral wall (13b) on which a fixed scroll (9) is disposed, and a motor housing (15) are fastened by a plurality of fastening members. The first peripheral wall (13b) has a plurality of thin-walled portions (131), and a plurality of thick-walled portions (132) through which the respective fastening members are inserted and passed. A fixed substrate (9a) has, on the outer circumferential surface, a plurality of recessed portions (91) that avoid interference with the respective thick-walled portions (132) at portions thereof opposite to the respective thick-walled portions (132) in a radial direction, and a plurality of protrusion portions (92) protruding outward than the recessed portions (91) in the radial direction, in portions thereof opposite to the respective thin-walled portions (11) in the radial direction. Each of the plurality of protrusion portions (92) is sandwiched between two adjacent thick-walled portions (132) in a circumferential direction. The fixed scroll (9) has a plurality of columnar portions (9c) axially extending from the respective protrusion portions (92) and for holding an elastic plate together with a shaft support housing. (과제) 스크롤형 전동 압축기의 더 한층의 소형화에 공헌한다. (해결 수단) 고정 스크롤(9)이 배치된 제1 둘레벽(13b)을 갖는 압축부 하우징(13)과, 모터 하우징(15)이 복수의 체결 부재로 체결된다. 제1 둘레벽(13b)은, 복수의 박육부(131)와, 각 체결 부재가 각각 삽입 통과되는 복수의 후육부(132)를 갖는다. 고정 기판(9a)은, 각 후육부(132)와 지름 방향에 대향하는 부위에, 각 후육부(132)와의 간섭을 회피하는 복수의 패임부(91)와, 각 박육부(11)와 지름 방향에 대향하는 부위에, 패임부(91)보다도 지름 방향의 외방으로 돌출한 복수의 돌출부(92)를 외주면에 갖는다. 복수의 돌출부(92)의 각각은 서로 이웃하는 2개의 후육부(132)에 둘레 방향으로 사이에 끼워져 있다. 고정 스크롤(9)은, 각 돌출부(92)로부터 축방향으로 연재하고, 축 지지 하우징과 함께 탄성 플레이트를 협지하는 복수의 기둥 형상부(9c)를 갖는다.