COMPRESSOR

• Main Authors: TAKAHASHI HIROYASU, KOKUBUN SHINOBU, OGO YUSUKE
• Format: Patent
• Language: Chinese; English
• Published: 27.09.2019
• Subjects: BLASTING; HEATING; LIGHTING; MECHANICAL ENGINEERING; POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENTMACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENTPUMPS; WEAPONS

A compressor is provided with: a tubular sealed container; a compressing element which is accommodated in the sealed container and which compresses refrigerant gas; and an electric motor which is accommodated in the sealed container and which drives the compressing element, wherein the electric motor has a stator fitted and welded in the sealed container, the stator has a stator core having an annular back yoke portion and a plurality of tooth portions protruding radially inward from the back yoke portion, the stator core has, in at least one site of the outer edge of the back yoke portion, a recess formed so as to form a sealed space between the sealed container and the back yoke portion, and a welded portion where the sealed container and the stator are welded together is formed via the recess. 本发明的压缩机具备：筒状的密闭容器；压缩元件，其收容于密闭容器的内部，对制冷剂气体进行压缩；以及电动机，其收容于密闭容器的内部，对压缩元件进行驱动，电动机具有与密闭容器嵌合并焊接的定子，定子具有定子铁芯，该定子铁芯具有：环状的背轭部、和从背轭部向径向的内侧突出的多个齿部，定子铁芯在背轭部的外缘部的至少一处形成有在密闭容器与背轭部之间形成密闭空间的凹部，将密闭容器与定子焊接的焊接部经由凹部而形成。