JP2010038086A - Hermetic compressor - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a hermetic compressor manufacturable at low cost. <P>SOLUTION: In this hermetic compressor having an electric element and a compression element in a hermetic container, a discharge pipe for discharging a refrigerant gas from the hermetic container comprises the inner and outer pipes of the upper hermetic container which forms the upper side of the hermetic container. Since the material of the inner pipe is steel and the material of the outer pipe is copper, the hermetic compressor can be manufactured at low cost. Since one opening of the inner pipe is enlarged and connected to the outer pipe, and welded to the upper hermetic container with a brazing filler, the welding of the discharge pipe to the upper hermetic container with the brazing filler can be performed in the same manner as before. <P>COPYRIGHT: (C)2010,JPO&amp;INPIT

Description

本発明は、密閉容器内に電動要素と圧縮要素とを備えてなる、密閉型圧縮機の構造に係り、特に密閉容器内の冷媒ガスを密閉容器外へ吐出するために設けられた、吐出管に関するものである。   The present invention relates to a structure of a hermetic compressor including an electric element and a compression element in a hermetic container, and in particular, a discharge pipe provided for discharging refrigerant gas in the hermetic container to the outside of the hermetic container. It is about.

従来の密閉型圧縮機としては、例えば特許文献１に示されたものがあった。特許文献１に示されるように密閉容器内の上部に電動要素を、下部に圧縮要素を配置しており、電動要素は圧縮要素を構成する回転軸に連結され、電動要素の駆動により圧縮要素が冷媒を圧縮する構造となっている。   As a conventional hermetic compressor, there has been one disclosed in Patent Document 1, for example. As shown in Patent Document 1, an electric element is arranged in the upper part of the sealed container and a compression element is arranged in the lower part. The electric element is connected to a rotating shaft constituting the compression element, and the compression element is driven by driving the electric element. It has a structure that compresses the refrigerant.

また圧縮要素より圧縮され吐出された冷媒は、密閉容器の上側を構成する上密閉容器にロー材で溶接固定された吐出管から吐出管上端に接続される銅配管に吐出される。   The refrigerant compressed and discharged by the compression element is discharged from a discharge pipe welded and fixed to the upper closed container constituting the upper side of the closed container with a brazing material to a copper pipe connected to the upper end of the discharge pipe.

吐出管は、吐出管上端に接続される銅配管との溶接による接続を容易にするため、同材質で銅材の一部品で構成されている。
特開平５−９９１７２号公報 The discharge pipe is made of the same material and made of one component of copper to facilitate connection by welding with the copper pipe connected to the upper end of the discharge pipe.
JP-A-5-99172

しかしながら、前記従来の密閉型圧縮機では、密閉容器の上側を構成している上密閉容器に設けられた吐配管の材質が銅材であるため、密閉型圧縮機の価格が高くなってしまうという問題があった。   However, in the conventional hermetic compressor, since the material of the discharge pipe provided in the upper hermetic container constituting the upper side of the hermetic container is a copper material, the price of the hermetic compressor is increased. There was a problem.

前記従来の課題を解決するために、本発明の密閉型圧縮機は、密閉容器内に電動要素と圧縮要素とを備えて成る、密閉型圧縮機において、前記密閉容器から冷媒ガスを吐出するために備えられた吐出管を、前記密閉容器の上側を構成する上密閉容器の内側の内管と外側の外管で構成し、内管の材質を鋼材、外管の材質を銅材とし、内管の一方の開口部を拡管し、外管と接続した状態で前記上密閉容器にロー材で溶接固定したものである。   In order to solve the above-described conventional problems, a hermetic compressor according to the present invention includes an electric element and a compression element in a hermetic container, and discharges refrigerant gas from the hermetic container. The discharge pipe provided in the upper container is composed of an inner tube inside and an outer tube outside the upper sealed container, and the inner tube is made of steel and the outer tube is made of copper. One opening of the tube is expanded and connected to the outer tube by welding and fixing to the upper sealed container with a brazing material.

本発明の密閉型圧縮機は、前記構成を有し、吐出管を構成する内管の材質を鋼材とすることで、密閉圧縮機の価格低減が図れ、内管の一方の開口部を拡管し、外管と接続することで、吐出管の上密閉容器へのロー材による溶接固定も従来と同様なかたちで行うことが出来る。   The hermetic compressor of the present invention has the above-described configuration, and the material of the inner pipe constituting the discharge pipe is made of steel, thereby reducing the price of the hermetic compressor and expanding one opening of the inner pipe. By connecting to the outer pipe, welding fixing with a brazing material to the upper sealed container of the discharge pipe can be performed in the same manner as before.

以下、本発明の実施の形態について、図面を参照しながら説明する。   Hereinafter, embodiments of the present invention will be described with reference to the drawings.

（実施の形態１）
図１は、本発明の実施の形態１における密閉型圧縮機の縦断面図、図２は、本発明の実施の形態１における吐出配管の縦断面図である。 (Embodiment 1)
FIG. 1 is a longitudinal sectional view of a hermetic compressor according to Embodiment 1 of the present invention, and FIG. 2 is a longitudinal sectional view of a discharge pipe according to Embodiment 1 of the present invention.

図１、図２に示すように、密閉容器１内の上部に電動要素２を、下部に圧縮要素３を配置しており、電動要素２は圧縮要素３を構成する回転軸４に連結され、電動要素２の駆動により圧縮要素３にて冷媒が圧縮される構造となっている。   As shown in FIGS. 1 and 2, the electric element 2 is arranged in the upper part of the sealed container 1, and the compression element 3 is arranged in the lower part. The electric element 2 is connected to a rotating shaft 4 constituting the compression element 3, The refrigerant is compressed by the compression element 3 by driving the electric element 2.

また圧縮要素３より圧縮され吐出された冷媒は、密閉容器１の上側を構成する上密閉容器１ａに設けられた吐出管４から吐出管４上端に接続される銅配管に吐出される構造となっており、吐出管４は上密閉容器１ａの内側の内管４ａと外側の外管４ｂで構成され、内管４ａの材質を鋼材、外管４ｂの材質を銅材とし、内管４ａの一方の開口部を拡管し、外管４ｂと接続した状態で上密閉容器４ａにロー材５で溶接固定した構造となっている。   The refrigerant compressed and discharged by the compression element 3 is discharged from a discharge pipe 4 provided in the upper closed container 1a constituting the upper side of the closed container 1 to a copper pipe connected to the upper end of the discharge pipe 4. The discharge pipe 4 is composed of an inner pipe 4a inside the upper sealed container 1a and an outer pipe 4b outside, and the inner pipe 4a is made of steel and the outer pipe 4b is made of copper. The opening is expanded and connected to the outer tube 4b, and is fixed to the upper sealed container 4a by welding with a brazing material 5.

かかる構成によれば、吐出管４を構成する内管４ａの材質を鋼材とすることで、密閉圧縮機の価格低減が図れ、内管４ａの一方の開口部を拡管し、外管４ｂと接続することで、吐出管４の上密閉容器４ａへのロー材５による溶接固定も従来と同様なかたちで行うことが出来る。   According to this configuration, the price of the hermetic compressor can be reduced by making the material of the inner pipe 4a constituting the discharge pipe 4 steel, and one opening of the inner pipe 4a is expanded and connected to the outer pipe 4b. By doing so, the welding fixation by the brazing material 5 to the upper airtight container 4a of the discharge pipe 4 can also be performed in the same manner as before.

本発明の密閉型圧縮機は、圧縮形態に関わらず、あらゆる密閉型圧縮機に適応が可能である。   The hermetic compressor of the present invention can be applied to any hermetic compressor regardless of the compression mode.

本発明の実施の形態１における密閉型圧縮機の縦断面図1 is a longitudinal sectional view of a hermetic compressor according to Embodiment 1 of the present invention. 本発明の実施の形態１における吐出配管の縦断面図The longitudinal cross-sectional view of the discharge piping in Embodiment 1 of this invention

符号の説明Explanation of symbols

１ 密閉容器
１ａ 上密閉容器
２ 電動要素
３ 圧縮要素
３ａ 回転軸
４ 吐出管
４ａ 外管
４ｂ 内管
５ ロー材 DESCRIPTION OF SYMBOLS 1 Airtight container 1a Upper airtight container 2 Electric element 3 Compression element 3a Rotating shaft 4 Discharge pipe
4a Outer pipe 4b Inner pipe 5 Raw material

Claims (1)

密閉容器内に電動要素と圧縮要素とを備えて成る、密閉型圧縮機において、前記密閉容器から冷媒ガスを吐出するために備えられた吐出管を、前記密閉容器の上側を構成する上密閉容器の内側の内管と外側の外管で構成し、内管の材質を鋼材、外管の材質を銅材とし、内管の一方の開口部を拡管し、外管と接続した状態で前記上密閉容器にロー材で溶接固定したことを特徴とする密閉型圧縮機。 An airtight compressor comprising an electric element and a compression element in an airtight container, wherein an upper airtight container constituting an upper side of the airtight container has a discharge pipe provided for discharging refrigerant gas from the airtight container The inner pipe is made of steel, the outer pipe is made of steel, the outer pipe is made of copper, and one opening of the inner pipe is expanded and connected to the outer pipe. A hermetic compressor characterized by being welded and fixed to a hermetic container with brazing material.