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scroll compressor

A compression device and scroll technology, which is applied to the components of the pumping device for elastic fluids, rotary piston pumps, rotary piston machines, etc., can solve the problems such as the inability to increase the balance weight, the inability to increase the removal volume, etc. , to achieve the effect of large removal volume

Inactive Publication Date: 2016-03-16
SANYO ELECTRIC CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to provide a gap between the rotor and the balance weight, the balance weight cannot be enlarged. In the case of using a balance weight formed of a magnetic body, there is a problem that the excluded volume cannot be increased.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0018] Hereinafter, one embodiment of the present invention will be described based on the drawings.

[0019] exist figure 1 In the figure, 1 represents a scroll compression device having a high pressure inside, and this compressor 1 is connected to a refrigerant circuit not shown in the figure that circulates a refrigerant to perform a refrigeration cycle operation, thereby compressing the refrigerant. The compressor 1 has a vertically long cylindrical hermetic dome-shaped casing 3 .

[0020] The casing 3 is constituted as a pressure vessel by a casing main body 5, a bowl-shaped upper cover 7 and a bowl-shaped lower cover 9. The upper cover 7 is integrally bonded to the upper end of the casing main body 5 by airtight welding, and has an upwardly protruding convex surface, and the bowl-shaped lower cover 9 is integrally bonded to the casing main body by airtight welding 5, and has a downward protruding convex surface. The inside of the casing 3 is a cavity. An end cover 52...

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PUM

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Abstract

The present invention provides a scroll compression device capable of handling a larger excluded volume by using a magnetic balance weight. A scroll compression mechanism (11) for compressing refrigerant is accommodated inside the casing (3), and a drive shaft (15) is connected to the scroll compression mechanism (11) to drive the scroll compression mechanism (11). The motor (13), the scroll compression mechanism (11) is supported on the casing (3) through the main frame (21), the rotor (39) of the drive motor (13) is connected with the drive shaft (15), and the drive shaft (15 ) is supported on the casing (3) through the bearing plate (8), and the upper balance weight (63) of the magnetic system is installed on the shaft of the drive shaft (15) higher than the stator (37), and the rotor (39 The lower end of the non-magnetic system is installed at the lower end of the balance weight (77), and the auxiliary balance weight (64) of the non-magnetic system is installed in the gap between the upper end of the rotor (39) and the upper balance weight (63).

Description

technical field [0001] The present invention relates to a scroll compression device that performs compression by engagement of a fixed scroll and an orbiting scroll. Background technique [0002] Conventionally, a scroll compression device is known. In a sealed casing, a compression mechanism composed of a fixed scroll and an oscillating scroll having spiral scrolls meshing with each other is included, and is driven by a drive motor. This compression mechanism performs compression by causing the orbiting scroll to perform circular motion relative to the fixed scroll without autorotating (for example, refer to Patent Document 1). In a scroll compression device, an orbiting scroll is inserted into an eccentric shaft portion provided eccentrically with respect to the axis of a drive shaft of a drive motor. Therefore, in the scroll compression device, generally, an upper balance weight opposing the centrifugal force accompanying the circular motion of the oscillating scroll is ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04C18/02F04C23/02F04C29/00
CPCF04C18/0215F04C23/008F04C2240/807F04C2240/403F05C2251/125F04C18/0207
Inventor 饭塚敏昆努杉本和禧长濑好彦
Owner SANYO ELECTRIC CO LTD