Mitsubishi Electric Corporation

Akihito Takai

Fumihiko Ishizono

Shuhei Koyama

Keisuke Kato

Tomokazu Matsui

A scroll compressor includes a fixed scroll including a first end plate having an injection passage through which refrigerant is supplied to a refrigerant suction chamber. The injection passage includes an outlet passage section that opens into the refrigerant suction chamber and extends linearly. A refrigerant compression chamber is disposed on an extension of the outlet passage section.

Scroll compressor having injection passage including first and second outlet passage sections

A scroll compressor includes an orbiting scroll, a fixed scroll, and a shell. The fixed scroll is configured to form a compression chamber together with the orbiting scroll. The shell accommodates the orbiting scroll and the fixed scroll. The fixed scroll includes a base plate and a scroll body. The base plate is fixed to the shell. The scroll body projects from the base plate toward the orbiting scroll. The base plate has a stress absorber that is formed outside the scroll body in a radial direction and that is configured to absorb stress from an outer region in the radial direction. A weld joint is formed in an overlap region where the shell and the base plate are fixed to each other and overlap each other. The stress absorber is provided on a line that passes through a center of the base plate and the weld joint.

Scroll compressor and method of manufacturing the scroll compressor

A scroll compressor includes a frame holding an orbiting scroll configured to slide, a fixed scroll configured to form a compression chamber together with the orbiting scroll, and a shell accommodating the frame and the fixed scroll. The shell includes a first inner wall surface and a first protrusion protruding from the first inner wall surface to position the fixed scroll, and the fixed scroll is fixed to the first inner wall surface.

Growing community of inventors

Tokyo, Japan

Akihito Takai