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Sealed compressor and manufacturing method for sealed compressor

A manufacturing method and compressor technology, applied in engine manufacturing, rotary piston type/oscillating piston type pump components, machines/engines, etc., can solve the problems of spring and vane positional deviation, spring distortion, etc., to ensure positional accuracy Effect

Active Publication Date: 2021-01-08
MITSUBISHI ELECTRIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, for the hermetic compressor of Patent Document 1, if the assembly accuracy of the airtight container and the cylinder body is poor, the positional relationship between the spring and the vane will deviate. Possibility to stretch by design

Method used

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  • Sealed compressor and manufacturing method for sealed compressor
  • Sealed compressor and manufacturing method for sealed compressor
  • Sealed compressor and manufacturing method for sealed compressor

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Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0015] [Hermetic compressor 100]

[0016] figure 1 It is a vertical cross-sectional view of the hermetic compressor 100 according to Embodiment 1 of the present invention. The hermetic compressor 100 is, for example, one member constituting a refrigeration cycle used in air conditioners, refrigerators, refrigerators, vending machines, water heaters, and the like. The hermetic compressor 100 is a twin rotary compressor constituting two compression chambers. The hermetic compressor 100 has a hermetic container 10 , and a motor mechanism unit 20 and a compression mechanism unit 30 housed in the hermetic container 10 . In addition, the hermetic compressor 100 has an accumulator (accumulator) 13 outside the hermetic container 10 , and has a suction pipe 11 connecting the hermetic container 10 and the accumulator 13 . Furthermore, the hermetic compressor 100 has a protruding container 50 that accommodates a spring 36d that biases a vane 35 that will be described later.

[0017] ...

Embodiment approach 2

[0053] Figure 5 It is a vertical cross-sectional view of the hermetic compressor 110 according to Embodiment 2 of the present invention. pair with Figure 1 to Figure 4 The parts with the same structure in the hermetic compressor 100 are denoted by the same reference numerals and their descriptions are omitted. Items not particularly described in the hermetic compressor 110 according to the second embodiment are described with the same reference numerals for the same functions and structures as those of the hermetic compressor 100 according to the first embodiment of the invention. .

[0054] In the hermetic compressor 100 according to Embodiment 1, regardless of the number of cylinders 31 disposed in the hermetic container 10 , the number of protruding containers 50 fixed to the middle container 10 a is always one. On the other hand, in the hermetic compressor 110 according to Embodiment 2, the number of protruding containers 50 fixed to the middle container 10 a changes ...

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Abstract

This sealed compressor comprises: a sealed container; a hollow cylinder accommodated in the sealed container; a rolling piston that eccentrically rotates; a vane that divides the space within the cylinder into an intake chamber and a compression chamber; a spring that biases the vane toward the side where the rolling piston is disposed; a cylindrical spring guide that protrudes from the sealed container, forms a hollow portion that accommodates the spring, and defines the extension / compression direction of the spring; and a protruding container that protrudes from the sealed container, forms asealed space together with the sealed container, and accommodates the spring guide therein. An insertion hole into which the spring is inserted is formed in the cylinder, one end portion of the spring guide is fixed to the cylinder and the hollow portion is in communication with the insertion hole, the other end portion of the spring guide is closed off by a bottom lid portion, and the spring isdisposed between the rear-side end portion of the vane, which is positioned at the side opposite to the rolling piston, and the bottom lid portion.

Description

technical field [0001] The present invention relates to a hermetic compressor used in a refrigeration cycle such as an air conditioner, a refrigerator, or a refrigerating machine, and a method for manufacturing the hermetic compressor. Background technique [0002] Among conventional hermetic compressors, there is a rotary compressor that compresses a refrigerant by a combination of a rotating piston and a cylinder. In this rotary compressor, a piston is accommodated in a cylinder, and a vane urged by a spring contacts the piston to form a compression chamber in the cylinder. The spring biasing the blade is housed in a spring insertion hole formed in the cylinder, and the spring is held by the cylinder. However, in the structure in which the spring is held by the cylinder, the space between the back surface of the blade and the airtight container is narrow. Therefore, when the vane reaches the top dead center of the reciprocating motion, the entire length of the spring is ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04C18/356
CPCF04C18/356F04C2240/20F04C2240/80F04C29/00F04C2240/10F04C2240/30F04C2230/231F04C2230/60
Inventor 井垣夏纪赤堀康之
Owner MITSUBISHI ELECTRIC CORP