JPH0387887U

JPH0387887U -

Info

Publication number: JPH0387887U
Application number: JP14797389U
Authority: JP
Priority date: 1989-12-22
Filing date: 1989-12-22
Publication date: 1991-09-06

Description

[Brief explanation of drawings]

第１〜５図は本考案の一実施例に係り、第１図
は固定渦巻体の拡大模式図、第２図は可動渦巻体
の拡大模式図、第３図は固定渦巻体の可動渦巻体
の噛合状態を示す拡大模式図、第４図は第３図の
可動渦巻体が公転した状態を示す拡大模式図、第
５図は第４図の可動渦巻体がさらに公転した状態
を示す拡大模式図である。第６図はスクロール型
圧縮機の縦断面図である。第７図は従来の固定渦
巻体及び可動渦巻体の拡大模式図である。１……ハウジング、２……固定スクロール、２
１……固定側板、２２……固定渦巻体、２２１…
…外壁、２２２……内壁、３……可動スクロール
、３１……可動側板、３２……可動渦巻体、３２
１……外壁、３２２……内壁、Ｃ……第１基点、
Ｄ……第１伸開点、Ｅ……第２基点、Ｆ……第２
伸開点、Ｉ……第３基点、Ｊ……第３伸開点、Ｋ
……第４基点、Ｌ……第４伸開点。 Figures 1 to 5 relate to an embodiment of the present invention, in which Figure 1 is an enlarged schematic diagram of a fixed spiral body, Figure 2 is an enlarged schematic diagram of a movable spiral body, and Figure 3 is a movable spiral body of a fixed spiral body. Fig. 4 is an enlarged schematic diagram showing the state in which the movable spiral body in Fig. 3 has revolved, and Fig. 5 is an enlarged schematic diagram showing the state in which the movable spiral body in Fig. 4 has further revolved. It is a diagram. FIG. 6 is a longitudinal sectional view of the scroll compressor. FIG. 7 is an enlarged schematic diagram of a conventional fixed spiral body and a movable spiral body. 1...Housing, 2...Fixed scroll, 2
1...Fixed side plate, 22...Fixed spiral body, 221...
...Outer wall, 222...Inner wall, 3...Movable scroll, 31...Movable side plate, 32...Movable spiral body, 32
1... Outer wall, 322... Inner wall, C... First base point,
D...First extension point, E...Second base point, F...Second
Extension point, I...Third base point, J...Third extension point, K
...Fourth base point, L...Fourth extension point.

Claims

[Claims for Utility Model Registration] A fixed scroll consisting of a fixed side plate fixed in a housing, and a fixed spiral body integrally formed on one surface of the fixed side plate, and whose inner and outer walls are formed by an involute curve. , a movable side plate that is rotatably supported within the housing, and a movable side plate that is integrally formed on one surface of the movable side plate, whose inner and outer walls are formed by an involute curve, and which is 180° out of phase with the fixed spiral body. A movable scroll consisting of a movable spiral body that meshes with the movable scroll, and a compression chamber formed between the movable scroll and the fixed scroll is formed so as to move toward the center while sequentially reducing the volume due to the orbital movement of the movable scroll. In the scroll type compressor, the involute curves of the outer walls of the fixed and movable spiral bodies start from expansion and expansion points based on the base point on the base circle, and the involute curves of the inner walls start from the expansion and expansion points based on the base point on the base circle. (180〓α)° and (180±α) in the stretching direction, respectively.
1. A scroll type compressor, characterized in that the starting point is an advanced expansion/opening angle, and the inner and outer walls of each spiral body are formed by connecting both expansion/opening points with at least two circular arcs.