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Capacity varying device for a scroll compressor

A technology for scroll compressors and changing devices, which is applied in the direction of elastic fluid rotary piston type/swing piston type pump combination, rotary piston type machinery, mechanical equipment, etc., and can solve the problem of increased compressor size, expensive components, Control complexity and other issues to achieve the effect of reducing the overall size, simplifying and compacting the structure and structure

Active Publication Date: 2009-08-26
LG ELECTRONICS INC
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The method associated with the frequency converter changes the rotation speed of the motor, but the control is complicated and the parts are expensive
The bypass-related method described uses a constant speed motor to enable communication between the high and low pressure sides; however, while relatively low cost, it is complex to manufacture and the size of the compressor increases

Method used

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  • Capacity varying device for a scroll compressor
  • Capacity varying device for a scroll compressor
  • Capacity varying device for a scroll compressor

Examples

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Embodiment Construction

[0031] A capacity changing device for a scroll compressor according to an embodiment will now be described in detail with reference to the accompanying drawings. Where possible, the same reference numerals are used to refer to the same components.

[0032] Figure 1A to Figure 1B It is a front view showing a compression portion of a scroll compressor having a capacity changing device for a scroll compressor according to an embodiment. figure 2 yes Figure 1A to Figure 1B A plan view of the fixed scroll wrap and the orbiting scroll wrap in the compression part of the scroll compressor. image 3 is a plan view of a compression portion of a scroll compressor having a capacity changing device according to an embodiment. Figure 4 is an exploded view of a capacity changing device for a scroll compressor according to an embodiment. Figure 5 is showing Figure 4 Perspective view of the capacity changing device in assembled state.

[0033] will now refer to Figure 1A to Figure...

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PUM

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Abstract

A capacity varying device for a scroll compressor is provided. The device may include a fixed scroll and an orbiting scroll both located in a casing, a low pressure passage formed by an orbiting motion of the orbiting scroll that communicates with a suction side, an intermediate pressure passage formed by the orbiting motion of the orbiting scroll that communicates with an intermediate pressure side, a rotating device rotatably coupled to the fixed scroll and having a connection passage therein, and an operating device mounted at the fixed scroll and configured to rotate the rotating device such that the low pressure passage and the intermediate pressure passage are connected / disconnected to / from each other via the connection passage of the rotating device. Accordingly, a capacity for compressing gas may be varied, a size of the device may be reduced due to a compact configuration and structure for varying the capacity, and also a fast response to the varying of the capacity may be provided.

Description

[0001] This application claims priority from Korean Application KR 10-2008-0015047 filed on February 19, 2008, the entire contents of which are expressly incorporated herein by reference. technical field [0002] A scroll compressor is disclosed herein, and more particularly, a capacity changing device for a scroll compressor is disclosed. Background technique [0003] In general, a compressor is used to convert electrical energy into kinetic energy and use the kinetic energy to compress refrigerant gas. For example, compressors may be classified as rotary compressors, scroll compressors, or reciprocating compressors according to the compression mechanism. Compressors are used as an essential component in a refrigeration cycle system if a refrigerant gas is to be compressed. For example, such refrigeration cycle systems can be used in refrigerators, air conditioners, showcases or the like. [0004] Scroll compressors are well known, however, various deficiencies still exis...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04C18/02F04C28/18
CPCF04C18/0215F04C23/008F04C18/0246F04C28/26F04C18/02
Inventor 金明均黄善雄
Owner LG ELECTRONICS INC
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