Attachment structure for compressor

Patent metadata

Field	Value
Publication number	US-10253773-B2
Application number	US-201515108802-A
Country	US
Kind code	B2
Filing date	Jan 21, 2015
Priority date	Jan 29, 2014
Publication date	Apr 9, 2019
Grant date	Apr 9, 2019

Abstract

An attachment structure is for attaching a compressor to an attachment surface of an attachment target member. The compressor is a scroll type compressor and has a housing, a fixed scroll and a movable scroll. The housing is fixed to the attachment surface. The fixed scroll is fixed inside the housing and has a fixed-side tooth having a scroll shape. The movable scroll has a movable-side tooth having a scroll shape and engaging with the fixed-side tooth. The movable scroll revolves with respect to the fixed scroll. A central axis around which the movable scroll revolves is parallel with the attachment surface. A vibration direction, which is included in a radial direction of the compressor and in which a vibration component becomes largest, is different from a normal direction when viewed in an axial direction of the central axis.

First claim

What is claimed is:

1. A compressor in combination with an attachment target member having an attachment surface, wherein the compressor is a scroll type compressor, and compresses and discharges a fluid, the compressor comprising:
a housing that is fixed to the attachment surface of the attachment target member;
a fixed scroll that is fixed inside the housing and has a fixed-side tooth having a scroll shape; and
a movable scroll that has a movable-side tooth having a scroll shape and engaging with the fixed-side tooth, the movable scroll that revolves relative to the fixed scroll around a central axis, wherein
when viewed along the central axis:
a base involute curve is defined as an involute curve of the fixed-side tooth that extends along a center line between an inner wall surface and an outer wall surface of the fixed-side tooth, and the base involute curve has a base circle with a center;
a connecting point is defined as a point at which the base circle is connected to the base involute curve;
a first line is defined as a line that passes through the connecting point and the center of the base circle;
a second line is defined as a line that extends along a normal direction of the attachment surface and passes through the center of the base circle; and
an attachment angle is defined as an angle formed extending from the first line to the second line in an extending direction of the base involute curve from the connecting point, wherein

the central axis is parallel with the attachment surface; and
the attachment angle is 65°≤α≤155° or 245°≤α≤355°.

2. The compressor according to claim 1 , wherein
the housing therein houses an electric motor that outputs a rotational driving force for revolving the movable scroll.

3. The compressor according to claim 1 , wherein
the housing has a fixing portion that is fixed to the attachment surface,
the fixing portion has a through-hole to which a bolt is inserted, and
the housing is fixed to the attachment surface by fastening the bolt, which is inserted to the through-hole, to a bolt hole provided with the attachment surface.

Assignees

• Denso Corp

Inventors

• Higashiyama Masashi
• Sanuki Masami
• Takemoto Tsuyoshi
• Kawano Shigeru

Classifications

• F04C25/00

  Adaptations of pumps for special use of pumps for elastic fluids · CPC title

• F04C2230/604

  Mounting devices for pumps or compressors · CPC title

• F04C2240/30

  Casings or housings · CPC title

• F01C21/007

  General arrangements of parts; Frames and supporting elements · CPC title

• F04C2270/12

  Vibration · CPC title