Hermetic type compressor

Patent metadata

Field	Value
Publication number	US-12492848-B2
Application number	US-202218568020-A
Country	US
Kind code	B2
Filing date	Jun 6, 2022
Priority date	Jun 7, 2021
Publication date	Dec 9, 2025
Grant date	Dec 9, 2025

Abstract

A compressor main body container includes a main shell having a vertical cylindrical shape, a top shell having a cup shape, and a bottom shell having a cup shape, and an interior portion of the main shell is hermetically sealed by securing an opening side of the top shell to an upper end portion of the main shell at a first welded portion by welding, and securing an opening side of the bottom shell to a lower end portion of the main shell at a second welded portion by welding. The accumulator container includes an accumulator shell having a cup shape, and an interior portion of the accumulator shell is hermetically sealed by securing an opening side of the accumulator shell to an opposite opening side of the bottom shell at a third welded portion by welding at a position lower than a position of the second welded portion in the compressor main body container.

First claim

The invention claimed is:

1 . A hermetic type compressor
in which, in an interior portion of a compressor main body container having a vertical cylindrical shape, a compression section that sucks and compresses a refrigerant and that discharges the refrigerant into the compressor main body container, and a motor that drives the compression section are accommodated, and that includes, below the compressor main body container, an accumulator container that separates a refrigerant, sucked from a refrigeration cycle, into a gas refrigerant and a liquid refrigerant, and that supplies the gas refrigerant to the compression section, wherein the compressor main body container includes a main shell having a vertical cylindrical shape, a top shell having a cup shape, and a bottom shell having a cup shape, and in which an interior portion of the main shell is hermetically sealed by securing an opening side of the top shell to an upper end portion of the main shell at a first welded portion by welding, and further by securing an opening side of the bottom shell to a lower end portion of the main shell at a second welded portion by welding, and the accumulator container includes an accumulator shell having a cup shape, and in which an interior portion of the accumulator shell is hermetically sealed by securing, by welding, an opening side of the accumulator shell to an opposite opening side of the bottom shell at a third welded portion that is located at a position lower than a position of the second welded portion in the compressor main body container, the hermetic type compressor comprising: a gas-liquid separation tube that is provided by passing through the accumulator shell and that conveys the gas refrigerant from the interior portion of the accumulator container; a communication pipe that is connected to the gas-liquid separation tube on an outside of the accumulator container; a compression section suction pipe that is connected to the communication pipe and through which the compression section sucks the refrigerant by way of the communication pipe; and an accumulator suction pipe that is provided by passing through the accumulator shell, and that sucks the refrigerant into the interior portion of the accumulator container from the refrigeration cycle, wherein the gas-liquid separation tube has an end portion to which the communication pipe is connected, and into which one end portion of the communication pipe is inserted, the compression section suction pipe has an end portion to which the communication pipe is connected, and into which an other end portion of the communication pipe is inserted, and the outside of the accumulator container is provided with a fourth welded portion, in which the gas-liquid separation tube and the accumulator container are bonded, a fifth welded portion, in which the accumulator suction pipe and the accumulator container are bonded, and a sixth welded portion, in which the gas-liquid separation tube and the communication pipe are bonded.

2 . The hermetic type compressor according to claim 1 , wherein
the communication pipe extends along a vertical direction of the compressor main body container and the accumulator container, and the one end portion and the other end portion of the communication pipe are bent along a radial direction of each of the compressor main body container and the accumulator container.

3 . The hermetic type compressor according to claim 1 , wherein
the accumulator shell includes a bottom surface having a concave shape curved in a downward direction of the accumulator shell, and in the interior portion of the accumulator shell, the gas-liquid separation tube is bent along the bottom surface.

4 . The hermetic type compressor according to claim 1 , wherein
component elements except for the accumulator container, the gas-liquid separation tube, the accumulator suction pipe, and the communication pipe included in the hermetic type compressor, are common to component elements included in another compressor, in which another accumulator container that separates the refrigerant, sucked from the refrigeration cycle, into the gas refrigerant and the liquid refrigerant, and that supplies the gas refrigerant to the compression section, is disposed side by side with the compressor main body container in a radial direction of the compressor main body container.

5 . The hermetic type compressor according to claim 4 , wherein
the other compressor includes a base member that supports the compressor main body container, and the hermetic type compressor is formed such that the accumulator shell is supported by the base member, and a shape of a lower part of the accumulator shell is supported by the base member.

6 . A hermetic type compressor
in which, in an interior portion of a compressor main body container having a vertical cylindrical shape, a compression section that sucks and compresses a refrigerant and that discharges the refrigerant into the compressor main body container, and a motor that drives the compression section are accommodated, and that includes, below the compressor main body container, an accumulator container that separates a refrigerant, sucked from a refrigeration cycle, into a gas refrigerant and a liquid refrigerant, and that supplies the gas refrigerant to the compression section, wherein the compressor main body container includes a main body, in which a main shell having a vertical cylindrical shape and a bottom shell having a cup shape are integrally formed by performing press molding, and a top shell having a cup shape, and in which an interior portion of the main body is hermetically sealed by securing an opening side of the top shell to an upper end portion of the main shell by welding, and the accumulator container includes an accumulator shell having a cup shape, and in which an interior portion of the accumulator shell is hermetically sealed by securing an opening side of the accumulator shell to an outer circumference wall of the bottom shell by welding, the hermetic type compressor comprising: a gas-liquid separation tube that is provided by passing through the accumulator shell and that conveys the gas refrigerant from the interior portion of the accumulator container; a communication pipe that is connected to the gas-liquid separation tube on an outside of the accumulator container; a compression section suction pipe that is connected to the communication pipe and through which the compression section sucks the refrigerant by way of the communication pipe; and an accumulator suction pipe that is provided by passing through the accumulator shell, and that sucks the refrigerant into the interior portion of the accumulator container from the refrigeration cycle, wherein the gas-liquid separation tube has an end portion to which the communication pipe is connected, and into which one end portion of the communication pipe is inserted, the compression section suction pipe has an end portion to which the communication pipe is connected, and into which an other end portion of the communication pipe is inserted, and the outside of the accumulator container is provided with a first welded portion, in which the gas-liquid separation tube and the accumulator container are bonded, a second welded portion, in which the accumulator suction pipe and the accumulator container are bonded, and a third welded portion, in which the gas-liquid separation tube and the communication pipe are bonded.

7 . The hermetic type compressor according to claim 2 , wherein
the communication pipe extends along a vertical direction of the compressor main body container and the accumulator container, and the one end portion and the other end portion of the communication pipe are bent along a

Assignees

• Fujitsu General Ltd

Inventors

• Ueda Kenshi
• Morozumi Naoya
• Tada Naoto

Classifications

• F04C29/12 Primary

  Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet · CPC title

• F04C23/008

  Hermetic pumps · CPC title

• F25B31/026 Primary

  with compressor of rotary type · CPC title

• F04C18/0215

  where only one member is moving · CPC title