Hermetic type compressor

Patent metadata

Field	Value
Publication number	US-12305647-B2
Application number	US-202218291684-A
Country	US
Kind code	B2
Filing date	Mar 30, 2022
Priority date	Jul 26, 2021
Publication date	May 20, 2025
Grant date	May 20, 2025

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

The invention claimed is:

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,
the thermal insulation section, when viewed from a vertical direction of the compressor main body container, is formed on a plane along a radial direction of the bottom shell to overlap across a projection region on which the bottom shell is projected, and
a thermal insulation member comprising a structure is provided to fill in an entirety of an interior portion space in the thermal insulation section.

2. The hermetic type compressor according to claim 1 , wherein
the accumulator shell is provided with a through hole to connect the interior portion space to an outside of the accumulator shell,
the through hole is a notch portion formed in a part of a circumferential direction of an end portion of the opening side of the accumulator shell, and
the weld portion is provided along a circumferential direction of the opening side except for the notch portion.

3. The hermetic type compressor according to claim 1 , wherein
the accumulator shell includes
a main shell that has a cylindrical shape, and
a bottom shell that is bonded so as to block a lower end portion of the main shell,

the bottom shell of the accumulator shell has an outer circumferential surface bonded to an inner circumferential surface of the lower end portion of the main shell,
the partition member has an outer circumferential surface bonded to an inner circumferential surface of the main shell between an upper end portion and the lower end portion of the main shell, and
the upper end portion of the main shell of the accumulator shell has an inner circumferential surface bonded to an outer circumferential surface of the bottom shell of the compressor main body container.

4. The hermetic type compressor according to claim 3 , wherein a through hole is arranged in a lower part of the interior portion space provided in the thermal insulation section.

5. 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,
a thermal insulation member is provided in the thermal insulation section,
the accumulator shell is provided with a through hole to connect an interior portion space of the thermal insulation section to an outside of the accumulator shell, the through hole being a notch portion formed in a part of a circumferential direction of an end portion of the opening side of the accumulator shell, and
the weld portion is provided along the circumferential direction of the opening side except for the notch portion.

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

• F04C2/344

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

• F04C2240/30

  Casings or housings · CPC title

• F04C23/008

  Hermetic pumps · CPC title

• F04B39/12

  Casings; Cylinders; Cylinder heads; Fluid connections · CPC title