Hermetic type compressor

Patent metadata

Field	Value
Publication number	US-2025084846-A1
Application number	US-202218291684-A
Country	US
Kind code	A1
Filing date	Mar 30, 2022
Priority date	Jul 26, 2021
Publication date	Mar 13, 2025
Grant date	—

Abstract

A hermetic type compressor includes a compressor main body container that is a vertical type having a cylindrical shape, an accumulator container, a compression section that is arranged inside the compressor main body container, that compresses the refrigerant, sucked from the accumulator container, and that discharges the compressed refrigerant. The accumulator container includes an accumulator shell having a cup shape and a weld portion in which an opening side of the accumulator shell is bonded to the compressor main body container. A partition member, which partitions an interior portion of the accumulator shell, is provided in the interior portion, and a thermal insulation section, which blocks a heat transfer from the compressor main body container to the accumulator container, is formed between the partition member and a bottom shell, included in the compressor main body container. A thermal insulation member is provided in the thermal insulation section.

First claim

1 . A hermetic type compressor comprising:
a compressor main body container that is a vertical type having a cylindrical shape and that is provided with a discharge pipe and a suction pipe for a refrigerant; an accumulator container that is connected to the suction pipe; a compression section that is arranged inside the compressor main body container, that compresses the refrigerant, which has been sucked from the accumulator container by way of the suction pipe, and that discharges the compressed refrigerant from the discharge pipe; and a motor that is arranged inside the compressor main body container and that drives the compression section, wherein the accumulator container includes an accumulator shell having a cup shape, and a weld portion in which an opening side of the accumulator shell is bonded to the compressor main body container, a partition member, which partitions an interior portion of the accumulator shell, is provided in the interior portion, a thermal insulation section, which blocks a heat transfer from the compressor main body container to the accumulator container, is formed between the partition member and a bottom shell, which is included in the compressor main body container, and a thermal insulation member is provided in the thermal insulation section.

2 . The hermetic type compressor according to claim 1 , wherein
the thermal insulation section includes a through hole, which is provided by passing through the accumulator shell and which is used to insert the thermal insulation member into an interior portion space provided in the thermal insulation section, and coating is applied on an inner surface of the thermal insulation section.

3 . The hermetic type compressor according to claim 2 , wherein
the bottom shell included in the compressor main body container is arranged by being inserted into the opening side of the accumulator shell, and the opening side of the accumulator shell is bonded to the bottom shell, included in the compressor main body container, by the weld portion.

4 . The hermetic type compressor according to claim 2 , wherein the through hole is arranged in a lower part of the interior portion space provided in the thermal insulation section.

5 . The hermetic type compressor according to claim 2 , wherein
in the accumulator shell, a notch portion is formed in a part of a circumferential direction of an end portion of the opening side, and the weld portion is provided along the circumferential direction of the opening side except for the notch portion.

6 . The hermetic type compressor according to claim 2 , wherein
the accumulator shell includes a main shell that includes an upper end portion and that has a cylindrical shape, and a bottom shell that is bonded so as to block a lower end portion of the main shell, an outer circumference surface of the partition member is bonded to an inner circumferential surface of the main shell, and an inner circumferential surface of the main shell, included in the accumulator shell, is bonded to the outer circumference surface of the bottom shell, included in the accumulator shell.

Assignees

• Fujitsu General Ltd

Inventors

• Akimoto Ryo
• Ueda Kenshi
• Ukai Koji
• Tada Naoto
• Yasui Tatsuya
• Morita Yudai

Classifications

• F04C2240/804

  Accumulators for refrigerant circuits · CPC title

• F04C2240/30

  Casings or housings · CPC title

• F04C23/008

  Hermetic pumps · CPC title

• F04C29/04 Primary

  Heating; Cooling (of machines or engines in general F01P); Heat insulation (heat insulation in general F16L59/00) · CPC title

• F04C18/356 Primary

  with vanes reciprocating with respect to the outer member · CPC title