JP2006118364A - Hermetic compressor - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an inexpensive and highly efficient hermetic compressor that uses carbon dioxide as a refrigerant, by utilizing a compressing mechanism part for existing refrigerants R22 and R410A. <P>SOLUTION: Motor output is secured by making the motor fixing part of a hermetic vessel cylinder part (compressing mechanism part fixing position) 3b larger than the compressing mechanism part fixing part of the hermetic vessel cylinder part (stator fixing position) 3a. This enables the use of the compressing mechanism part 1 and a motor part 2 which are used by the existing refrigerants, thereby providing the highly efficient hermetic compressor inexpensively. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a hermetic compressor used in the field of refrigeration and air conditioning.

In the case of a hermetic compressor using carbon dioxide as a refrigerant in which a compression mechanism and an electric motor for driving the compression mechanism are arranged in a hermetic container, the same motor as the existing compression mechanism such as R22 and R410A is used. Output is insufficient, and there is a problem such as an efficient deterioration or a dedicated design, resulting in a significant increase in cost (for example, see Patent Document 1).
JP 2003-172281 A

  In the conventional technology, in the case of a hermetic compressor using carbon dioxide as a refrigerant, if the same compressor as the existing compression mechanism such as R22 and R410A is used, the output of the motor is insufficient, resulting in an efficient deterioration or a dedicated design and a great increase in cost. There are issues such as. Therefore, the present invention provides a hermetic compressor using inexpensive and highly efficient carbon dioxide as a refrigerant by using the compression mechanism for R22 and R410A which are existing refrigerants.

  In order to solve the above-mentioned conventional problems, by making the motor fixing part larger than the compression mechanism part fixing part of the hermetic container body part, the motor output can be secured and a highly efficient hermetic compressor can be provided at a low cost. It becomes possible.

  The efficiency of a compressor can be improved by using the trunk | drum of the airtight container of this invention.

  According to the first aspect of the present invention, it is possible to increase the output of the motor by making the stator fixing part larger than the compression mechanism part of the motor of the hermetic container body, and compression using the existing refrigerants R22 and R410A The mechanism portion can be used and the high efficiency of the hermetic compressor can be achieved at low cost.

(Embodiment 1)
As Embodiment 1, FIG. 1 is a sectional view of a hermetic compressor. A compression mechanism section 1 and an electric motor section 2 for driving the compression mechanism section 1 are disposed in the hermetic container 3, and the electric motor section 2 is constituted by a rotor 2 a and a stator 2 b that transmit driving to the compression mechanism section 1. The stator 2b is shaped to be fixed to the sealed container body (stator fixing position) 3a of the sealed container 3 by shrink fit welding, and the compression mechanism 1 is also shrink fit or welded. An electric motor is fixed by a sealed container body (compression mechanism section fixing position) 3b, and the sealed container body section (stator fixing position) 3a is made larger than the sealed container body section (compression mechanism section fixing position) 3b. 2 can be set to a large value, and by using a compression mechanism and an electric motor that are already used in existing refrigerants such as R410A and R22, it is easy to use carbon dioxide as a refrigerant. Type compressor capable of providing a highly efficient compressor at a low cost.

  As described above, the hermetic compressor according to the present invention is low-cost and highly efficient by using components already mass-produced with the existing refrigerant, compared to the conventional hermetic compressor using carbon dioxide as a refrigerant. A hermetic compressor can be provided.

Sectional drawing of a hermetic compressor showing an embodiment of the present invention

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Compression mechanism part 2 Electric motor part 2a Rotor 2b Stator 3 Airtight container 3a Airtight container trunk | drum (stator fixing position)
3b Airtight container body (stator fixing position)

Claims (1)

A hermetic container in which a compression mechanism and an electric motor for driving the compression mechanism are arranged in a hermetic container. The hermetic container using carbon dioxide as a refrigerant is a hermetic container in which the motor fixing part is larger than the compression mechanism fixing part. A hermetic compressor characterized by being a barrel.

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