Miniature rotary compressor, and methods related thereto

a compressor and miniature technology, applied in the field of miniature rotary compressors, can solve the problems of insufficient cooling effect, non-mobile, bulky, etc., and achieve the effect of sufficient cooling

US20060140791A1Inactive Publication Date: 2006-06-29ASPEN COMPRESSOR
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Patent Information

Authority / Receiving Office
US · United States
Patent Type
Applications(United States)
Current Assignee / Owner
Publication Date
2006-06-29
Estimated Expiration
Not applicable · inactive patent

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Abstract

Disclosed is a rolling piston rotary compressor for use with primary refrigerants that is miniaturized for portable and mobile applications for which size and weight are often crucial. The miniature rotary compressor comprises a compressor mechanism, a brushless DC motor and a casing. The compressor mechanism comprises, a cylinder, a shaft having an eccentric part, one or more bearings to support the shaft, a roller, a vane, an oil sump, openings for communicating with lubricant oil and refrigerant, and inlet and discharge ports. The compressor mechanism and the motor are housed in a hermetically sealed or semi-hermetically sealed casing. The configuration and design of the present invention allow the realization of an ultralight miniature compressor. The miniature rotary compressor provides a higher power density and comparable efficiency as compared to state-of-the-art refrigerant-based rotary compressors. Also disclosed are methods of manufacturing the miniature rotary compressor.
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Description

CROSS REFERENCE TO RELATED APPLICATION

[0001] This is a non-provisional application claiming the benefit of and priority to provisional patent application Ser. No. 60 / 640,699 filed on Dec. 29, 2004, which is incorporated herein by reference.TECHNICAL FIELD

[0002] The present invention relates generally to rotary compressors, and methods related thereto. Specifically, the present invention pertains to a rolling piston type miniature rotary compressor for use with primary refrigerants as the working fluid, as used in vapor compression systems. This miniature rotary compressor is especially useful in applications that require small and ultralight cooling systems, which can be battery-powered for portability and used in hot environments that are impractical for conventional air conditioning. BACKGROUND

[0003] The emergence of new small-scale technologies has created an environment in which conventional space conditioning may be displaced. One area where such displacement may occur is in...

Examples

Embodiment Construction

[0034] The present invention pertains to a miniature rolling piston rotary compressor for primary refrigerants designed primarily for portable refrigeration applications, such as in personal cooling systems, small refrigerators and freezers, portable blood coolers, beverage coolers, etc. where size, weight, and factors, such as efficiency, do not inhibit functionality. This miniature rolling piston rotary compressor is also suitable for small stationary applications, such as cooling for microprocessors, lasers, x-rays, and other electronic components that generate substantial amounts of heat.

1. Definitions

[0035] The term “ultralight” or “ultralight weight”, as used herein, refers to a mass that is low enough that when included within a complete refrigeration system with portable power supply, it can be mounted upon a person comfortably without encumbrance. Within this context, a compressor weight of less than 2.0 pounds and a cooling capacity of about 100 to about 500 Watts, can ...