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Scroll compression device

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

Inactive Publication Date: 2013-12-18
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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  • Scroll compression device
  • Scroll compression device
  • Scroll compression device

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

Provided is a scroll compression device that can support a greater elimination capacity using a magnetic balancer. A scroll compression mechanism (11), which compresses a refrigerant, and a drive motor (13) that is coupled to the scroll compression mechanism (11) via a drive shaft (15) and drives the scroll compression mechanism (11) are housed in a casing (3); the scroll compression mechanism (11) is supported in the casing (3) by a main frame (21); the rotor (39) of the drive motor (13) is connected to the drive shaft (15); the drive shaft (15) is supported in the casing (3) by a bearing plate (8); a magnetic upper balancer (63) is attached at the top of the drive shaft (15) at a position above a stator (37); a non-magnetic lower balancer (77) is attached to the bottom end of the rotor (39); and a non-magnetic auxiliary balancer (64) is attached at the gap between the top end of the rotor (39) and the upper balancer (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 Applications(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