JPS5928145Y2 - hermetic compressor - Google Patents

Description

【考案の詳細な説明】 本案は密閉型圧縮機に関する。[Detailed explanation of the idea] This proposal relates to a hermetic compressor.

従来の密閉型圧縮機の防振装置は圧縮機本体の機械振動
やガス冷媒の脈動等によって吐出配管が固有振動数で振
動するため同一条件で常に共振現象が発生して異常騒音
や配管折れ等の原因となり、対策として配管形状や該配
管にオモリ等を取付けて固有振動数を変更していたが、
前記配管形状は密閉容器内空間が限られているため限定
されたり、一度オモリを取付けて密閉型圧縮機を完成し
た後には該オモリを変えられない等の問題があった。In conventional hermetic compressor vibration isolation devices, the discharge piping vibrates at its natural frequency due to mechanical vibrations in the compressor body, pulsation of the gas refrigerant, etc., so resonance always occurs under the same conditions, resulting in abnormal noise, pipe bending, etc. As a countermeasure, the natural frequency was changed by changing the shape of the piping and attaching weights to the piping.
There are problems in that the shape of the piping is limited because the space inside the closed container is limited, and that once the weight is attached and the hermetic compressor is completed, the weight cannot be changed.

本案は上記の点に鑑みてなされたものであり、以下図に
示す実施例に基づいて説明する。This proposal has been made in view of the above points, and will be explained below based on the embodiments shown in the figures.

１は上部に電動要素２を下部に圧縮要素３を配置し、該
両要素を回転軸４で連結した圧縮機本体５を密閉容器６
内に収納した密閉型圧縮機である。1 has a compressor main body 5 in which an electric element 2 is arranged in the upper part and a compression element 3 is arranged in the lower part, and these two elements are connected by a rotating shaft 4, and a closed container 6.
It is a hermetic compressor housed inside.

７（Ｉｉ前記圧縮要素３と図示しない外部冷却回路とを
密閉容器６を貫通して接続しｔｍｍ出前管ある。7 (Ii) The compression element 3 and an external cooling circuit (not shown) are connected through the closed container 6 through a delivery pipe.

８／ｌ′ｉ密閉容器６内の吐出配管７の一部を開口部に
対向させた該容器に穿設した図示しない吸込配管を接続
する吸込配管接続口である。8/l'i This is a suction pipe connection port for connecting a suction pipe (not shown) drilled in the closed container 6 with a part of the discharge pipe 7 facing the opening.

９は前記吸込配管接続口８カ・ら吐出配管７に弾性的に
取付けた固有振動数変換用錘である。Reference numeral 9 denotes a weight for converting the natural frequency, which is elastically attached to the suction pipe connection port 8 and the discharge pipe 7.

このように構成された密閉型圧縮機にかいて、圧縮機本
体５の機械振動やガス冷媒の脈動により振動する吐出配
管７は該配管の固有振動数で振動して共振現象を起こし
異常振動や配管折れ等の原因となるのを、前記吐出配管
Ｉの配管形状や該配管にオモリ９を取付けて固有振動数
を変えていたが、密閉容器６内の空間が限られているた
め形状が限定されたり、密閉型圧縮機１の完成後前記オ
モリ９を変えられな刀・つたりして使用条件によっては
共振現象が発生していた。In the hermetic compressor configured in this way, the discharge pipe 7 that vibrates due to the mechanical vibration of the compressor body 5 and the pulsation of the gas refrigerant vibrates at the natural frequency of the pipe, causing a resonance phenomenon and causing abnormal vibrations. The shape of the discharge pipe I and the natural frequency of the pipe were changed by attaching a weight 9 to the pipe to solve the problem of pipe bending, etc., but the shape is limited because the space inside the closed container 6 is limited. Depending on the usage conditions, a resonance phenomenon may occur if the weight 9 cannot be changed after the hermetic compressor 1 is completed.

前記使用条件の違いによって固有振動む変換用錘９は密
閉型圧縮機１の完成後密閉容器６に穿設した吸込配管接
続口８カ・ら吐出配管７に任意に弾性的に取付けて共振
現象を防止する。After the hermetic compressor 1 is completed, the conversion weight 9, which generates natural vibration due to the difference in usage conditions, is arbitrarily elastically attached to the suction piping connection port 8 bored in the hermetic container 6 and the discharge piping 7 to generate a resonance phenomenon. prevent.

以上の如く本案は電動要素と圧縮要素とを回転軸で連結
した圧縮機本体を密閉容器内に収納してなる牲１閉型圧
縮機において、前記密閉容器内に配置された吐出配管の
一部を該密閉容器に穿設された吸込配管接続口に対向し
て設け、該接続口を前記吐出配管の固有振動変換用錘の
取付口と兼用したのであろ力・ら、前記吐出配管の固有
振動数を変える固有振動数変換用錘を密閉型圧縮機の完
成後に使用条件に合せて吸込配管接続口力・ら吐出配管
に弾性的に取付けて共振現象の発生をおさえ、異常騒音
や配管折れ等を防止する等実用上有益な密閉型圧縮機が
提供できる。As described above, the present invention provides a closed type compressor in which a compressor main body in which an electric element and a compression element are connected by a rotating shaft is housed in a closed container, and a part of the discharge piping arranged in the closed container. is provided opposite to the suction pipe connection port bored in the airtight container, and the connection port also serves as the installation port for the weight for converting the natural vibration of the discharge pipe. After the hermetic compressor is completed, a weight for converting the natural frequency, which changes the number of vibrations, is elastically attached to the suction pipe connection port and the discharge pipe according to the usage conditions to suppress the occurrence of resonance phenomena and prevent abnormal noise and pipe bending. Therefore, it is possible to provide a hermetic compressor that is useful in practice, such as preventing such problems.

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は本案の一実施例を示す密閉型圧縮機の縦断面図
、第２図は第１図のｎ−ｎ’線方向に切断した断面図で
ある。 ５・・・・・・圧縮機本体、６・・・・・・密閉容器、
７・・・・・・吐出配管、８・・・・・・吸込配管接続
口、数変換用錘。 ９・・・・・・固有振動FIG. 1 is a longitudinal sectional view of a hermetic compressor showing an embodiment of the present invention, and FIG. 2 is a sectional view taken along line nn' in FIG. 1. 5...Compressor main body, 6...Airtight container,
7...Discharge pipe, 8...Suction pipe connection port, weight for number conversion. 9...Natural vibration

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 電動要素と圧縮要素とを回転軸で連結した圧縮機本体を
密閉容器内に収納してなる密閉型圧縮機において、前記
密閉容器内に配置された吐出配管の一部を該密閉容器に
穿設された吸込配管接続口に対向して設け、該接続口を
前記吐出配管の固有振動数変換用錘の取付口と兼用した
ことを特徴とする密閉型圧縮機。In a hermetic compressor in which a compressor body in which an electric element and a compression element are connected by a rotating shaft is housed in a hermetic container, a part of the discharge piping arranged in the hermetic container is bored into the hermetic container. 1. A hermetic compressor, characterized in that the connection port is provided opposite to a suction pipe connection port, and the connection port also serves as a mounting port for a weight for converting the natural frequency of the discharge pipe.