Cyclone compressor
A scroll compressor and scroll technology, applied in the field of scroll compressors, can solve the problems of narrow width, difficulty in precision machining, low degree of freedom in design, etc., and achieve the effects of simple structure, easy machining, and improved sealing.
Inactive Publication Date: 2011-10-12
HITACHI JOHNSON CONTROLS AIR CONDITIONING INC
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Problems solved by technology
However, if the above-mentioned structure is to be adopted in a small compressor, the width of the actual groove is narrow, and precision machining is difficult.
In addition, there is a problem of low machinability such as requiring machining time and frequent tool replacement.
In addition, the rotating hub of the orbiting scroll, the Oldham's ring for preventing rotation, and the main shaft must be arranged in the limited space in the frame, and in order to ensure machining accuracy, it is also necessary to ensure that the gap between the groove of the seal ring and the main bearing is ensured. There is a problem of low degree of freedom in design due to the wall thickness between
Method used
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[0021] Examples of the present invention are described below. figure 1 is a sectional view of a scroll compressor according to an embodiment of the present invention, figure 2 yes figure 1 An enlarged view of the main part in . A scroll compression mechanism unit 2 and an electric motor 3 for driving the scroll compression mechanism unit 2 are housed in the airtight container 1 . The scroll compression mechanism unit 2 has a fixed scroll 10 and an orbiting scroll 20 . Such as figure 1 and Figure 6 As shown, the fixed scroll 10 has a scroll-shaped cover plate 11 standing upright from the bottom 12 , and a flange portion 13 , which is a flat surface at the same height as the front end of the cover plate 11 around the bottom 12 . Such as figure 1 and Figure 7 As shown, the orbiting scroll 20 has: a disk-shaped mirror plate 21; a scroll-shaped cover plate 22 standing up from the mirror plate 21 and engaged with the cover plate 11 of the fixed scroll 10; The eccentric sh...
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The invention provides a scroll compressor. When a sealing ring for sealing a revolving scroll and a frame is held in a structure of a groove arranged on the frame, along with miniaturization of the compressor, the groove with narrow width is necessarily processed. In a sealed container, the scroll compressor is provided with a fixed scroll and a revolving scroll which are provided with scroll cover plates on a mirror plate, and a frame which has a main bearing for supporting a main shaft driving the revolving scroll to revolve, wherein, the scroll compressor comprises: a back pressure chamber positioned on the back of the mirror plate of the revolving scroll; a sealing mechanism for sealing the back pressure chamber and the space of the circumference of the main bearing; a sealing mechanism mounting part arranged on the upper surface of the frame and opposite to the end face of a revolving hub part inserted in the revolving scroll of the main shaft; a sealing supporting mechanism which is configured with the sealing mechanism at the sealing mechanism mounting part, and provided with a supporting part for supporting the sealing mechanism and an elastic part leading the sealing mechanism to contact with the back of the revolving mirror plate.
Description
technical field [0001] The present invention relates to scroll compressors used in refrigerating and air-conditioning equipment, air compressing equipment, and the like. Background technique [0002] A conventional scroll compressor is disclosed in Patent Document 1 (Japanese Unexamined Patent Application Publication No. 2004-270599). A scroll compression mechanism unit and an electric motor are accommodated in the airtight container. The scroll compression mechanism unit includes: a fixed scroll having a spiral lap on a disc-shaped mirror plate; and a revolving scroll having a spiral lap formed on a disc-shaped mirror plate. . The cover plate of the fixed scroll and the cover plate of the orbiting scroll form a compression chamber in a state of being engaged with each other. [0003] The orbiting scroll includes, on the surface (rear surface) opposite to the mirror plate surface on which the cover plate is provided, a rotary hub portion provided with a rotary bearing por...
Claims
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IPC IPC(8): F04C18/02F04C27/00
CPCF04C18/0215F04C23/008F04C27/005F04C29/028F04C2210/26F04C2240/30Y10S415/00Y10S417/00
Inventor 寺井利行大岛健一岛田敦井崎宏近野雅嗣岛田昌浩
Owner HITACHI JOHNSON CONTROLS AIR CONDITIONING INC