JP2001214859A - Refrigerant compressor - Google Patents

Refrigerant compressor

Info

Publication number
JP2001214859A
JP2001214859A JP2000025097A JP2000025097A JP2001214859A JP 2001214859 A JP2001214859 A JP 2001214859A JP 2000025097 A JP2000025097 A JP 2000025097A JP 2000025097 A JP2000025097 A JP 2000025097A JP 2001214859 A JP2001214859 A JP 2001214859A
Authority
JP
Japan
Prior art keywords
refrigerant compressor
compression mechanism
cover
electric motor
cylinder
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP2000025097A
Other languages
Japanese (ja)
Other versions
JP3723399B2 (en
Inventor
Shigekatsu Kato
重勝 加藤
Shuji Kawashima
修二 川島
Tsutomu Kon
努 昆
Tsutomu Oyama
強 大山
Yoshio Watabe
由夫 渡部
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sanyo Electric Co Ltd
Original Assignee
Sanyo Electric Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sanyo Electric Co Ltd filed Critical Sanyo Electric Co Ltd
Priority to JP2000025097A priority Critical patent/JP3723399B2/en
Publication of JP2001214859A publication Critical patent/JP2001214859A/en
Application granted granted Critical
Publication of JP3723399B2 publication Critical patent/JP3723399B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

PROBLEM TO BE SOLVED: To solve problems of increasing noises of a refrigerant compressor when a sliding sound generated in a sliding part of a piston of a compression mechanism, a slider and a crankshaft for driving this piston is directly discharged in a sealed vessel in a conventional refrigerant compressor and of increasing the noise of the refrigerant compressor since a collision sound is generated when lubricating oil scattered from the compression mechanism becomes an oil drop by sticking and joining to an inner wall of the sealed vessel and a delivery pipe and drips on a liquid surface of the lubricating oil stored in a sealed vessel bottom part from a high position. SOLUTION: A cover for covering the sliding part of the compression mechanism is integrally provided on a suction muffler to check direct discharge of the sliding sound into the sealed vessel, and the scattered lubricating oil is arrested and dripped on an electric motor positioned below to reduce the noise of the refrigerant compressor.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【発明の属する技術分野】本発明は、冷蔵庫等に使用さ
れる冷媒圧縮機に関し、特にレシプロ式の冷媒圧縮機に
おいて圧縮機構部の構造に起因する騒音の発生を改良す
るものである。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a refrigerant compressor used in refrigerators and the like, and more particularly to an improvement in noise generation due to the structure of a compression mechanism in a reciprocating refrigerant compressor.

【0002】[0002]

【従来の技術】従来のレシプロ式の冷媒圧縮機は、例え
ば特開平9−250455号公報に開示されている。こ
の冷媒圧縮機は図3及び図4に示すように、密閉容器1
内の下部に配置された電動機2と、この電動機2により
駆動されると共に密閉容器1内の上部に配置された圧縮
機構7とを備えている。この圧縮機構7には、電動機2
によりクランクシャフト3を介して駆動され、スライダ
ー4によって往復運動するピストン5が配されるシリン
ダ6を有している。シリンダ6の端部には、冷媒の吸入
孔及び吐出孔が形成された弁座板8を介してシリンダヘ
ッド9が取り付けられている。弁座板8のシリンダ側に
は吸入リード弁が設けられ、反対側には吐出リード弁が
設けられている。吸入リード弁および吐出リード弁は、
シリンダ6内のピストン5の往復運動に応じてそれぞれ
弁座板の吸入孔および吐出孔の開口を開閉する。
2. Description of the Related Art A conventional reciprocating refrigerant compressor is disclosed in, for example, Japanese Patent Application Laid-Open No. 9-250455. As shown in FIG. 3 and FIG.
And a compression mechanism 7 driven by the electric motor 2 and arranged at an upper part in the closed casing 1. The compression mechanism 7 includes an electric motor 2
Has a cylinder 6 on which a piston 5 driven by a slider 4 and reciprocated by a slider 4 is disposed. A cylinder head 9 is attached to an end of the cylinder 6 via a valve seat plate 8 having a refrigerant suction hole and a discharge hole formed therein. A suction reed valve is provided on the cylinder side of the valve seat plate 8, and a discharge reed valve is provided on the opposite side. The suction reed valve and the discharge reed valve are
The opening and closing of the suction hole and the discharge hole of the valve seat plate are respectively opened and closed in accordance with the reciprocating motion of the piston 5 in the cylinder 6.

【0003】吸入マフラ10はシリンダ6の側部に配置
され、吸入マフラ10に設けられた通路管11は、その
開口を弁座板8の吸入孔に対向するように接続されてい
る。
The suction muffler 10 is disposed on the side of the cylinder 6, and a passage pipe 11 provided in the suction muffler 10 is connected so that its opening faces the suction hole of the valve seat plate 8.

【0004】このように構成された冷媒圧縮機では、外
部冷凍回路から戻ってくる冷媒は密閉容器1に設けた吸
入管12から吸い込まれた後、吸入マフラ10、通路管
11、弁座板8の吸入孔を介してシリンダ6内へ導か
れ、シリンダ6内で圧縮された冷媒は、弁座板8の吐出
孔からシリンダヘッド9に送られ、シリンダヘッド9と
密閉容器1の間を接続する吐出管13から外部冷凍回路
へ吐出される。
In the refrigerant compressor configured as described above, the refrigerant returning from the external refrigeration circuit is sucked through the suction pipe 12 provided in the closed vessel 1, and then the suction muffler 10, the passage pipe 11, the valve seat plate 8 The refrigerant that has been guided into the cylinder 6 through the suction hole of the above and is compressed in the cylinder 6 is sent from the discharge hole of the valve seat plate 8 to the cylinder head 9, and connects between the cylinder head 9 and the sealed container 1. It is discharged from the discharge pipe 13 to the external refrigeration circuit.

【0005】また、密閉容器1の底部には圧縮機構7の
摺動部と、圧縮機構7を駆動するクランクシャフト3の
軸受摺動部14を潤滑するための潤滑油15を貯留して
おり、クランクシャフト3の下端部に設けられた遠心ポ
ンプ16により潤滑油15を汲み上げ、クランクシャフ
ト3の内径に備えた給油孔17を通してクランクシャフ
ト3の軸受摺動部14へ給油し、再びクランクシャフト
3の内径に備えた給油孔18を通して更に上方に位置す
る圧縮機構7の摺動部に給油している。圧縮機構7に給
油して残った余分の潤滑油15は、クランクシャフト3
の上端で開放された給油孔18から密閉容器内に飛散す
る。
[0005] Further, a lubricating oil 15 for lubricating a sliding portion of the compression mechanism 7 and a bearing sliding portion 14 of the crankshaft 3 for driving the compression mechanism 7 is stored at the bottom of the closed container 1. A lubricating oil 15 is pumped up by a centrifugal pump 16 provided at the lower end of the crankshaft 3, and is supplied to a bearing sliding portion 14 of the crankshaft 3 through an oiling hole 17 provided on the inner diameter of the crankshaft 3. Oil is supplied to the sliding portion of the compression mechanism 7 located further above through an oil supply hole 18 provided on the inner diameter. The surplus lubricating oil 15 remaining after being supplied to the compression mechanism 7 is supplied to the crankshaft 3.
From the oil supply hole 18 opened at the upper end of the container.

【0006】[0006]

【発明が解決しようとする課題】このように、従来の冷
媒圧縮機では圧縮機構のピストンとこれを駆動するスラ
イダー、クランクシャフトが露出しており、これらの摺
動部で発生する摺動音が密閉容器内に直接放出されて冷
媒圧縮機の騒音を増大させている。また、クランクシャ
フトの上端で開放された給油孔から飛散した潤滑油は、
密閉容器の内壁や吐出管等に付着し結合して油滴とな
り、高い位置から密閉容器底部に貯留している潤滑油液
面に滴下することで衝突音が発生し、冷媒圧縮機の騒音
を増大させる問題点があった。
As described above, in the conventional refrigerant compressor, the piston of the compression mechanism, the slider and the crankshaft for driving the piston are exposed, and the sliding noise generated at these sliding portions is reduced. It is discharged directly into the closed container to increase the noise of the refrigerant compressor. Also, lubricating oil scattered from the oil supply hole opened at the upper end of the crankshaft,
The oil adheres to the inner wall of the sealed container, discharge pipe, etc. and combines to form oil droplets, which drop from a high position onto the lubricating oil level stored at the bottom of the sealed container to generate collision noise, which reduces the noise of the refrigerant compressor. There was an increasing problem.

【0007】本発明は、このような騒音の発生を改善し
た冷媒圧縮機を提供するものである。
The present invention provides a refrigerant compressor in which such noise generation is improved.

【0008】[0008]

【課題を解決するための手段】上記課題を解決するた
め、請求項1にかかる発明は、密閉容器内の下部に配置
された電動機と、この電動機により駆動され且つ前記密
閉容器内の上部に配置された圧縮機構とを備え、この圧
縮機構には、前記電動機によりクランクシャフトを介し
て往復駆動されるピストンを有するシリンダと、冷媒の
吸入孔が形成された弁座板と、この弁座板を介して前記
シリンダの端部に取り付けられたシリンダヘッドと、こ
のシリンダヘッドの前記弁座板の吸入孔と連通する孔に
端部開口部が接続された通路管を有する吸入マフラとを
備えた冷媒圧縮機において、前記吸入マフラには前記圧
縮機構の摺動部を覆うカバーを一体に備えることによっ
て、摺動音の直接放出を阻止するものである。
In order to solve the above-mentioned problems, the invention according to claim 1 comprises an electric motor disposed at a lower portion in a closed container, and an electric motor driven by the electric motor and disposed at an upper portion in the closed container. The compression mechanism includes a cylinder having a piston reciprocally driven by the electric motor via a crankshaft, a valve seat plate in which a refrigerant suction hole is formed, and the valve seat plate. A refrigerant having a cylinder head attached to an end of the cylinder via a suction port, and a suction muffler having a passage pipe having an end opening connected to a hole communicating with a suction hole of the valve seat plate of the cylinder head. In the compressor, the suction muffler is integrally provided with a cover that covers a sliding portion of the compression mechanism, thereby preventing a sliding sound from being directly emitted.

【0009】請求項2にかかる発明は、前記吸入マフラ
とカバーは、合成樹脂で一体成型した構成を備えること
によって、容易に圧縮機構の摺動部を覆うものである。
In the invention according to a second aspect, the suction muffler and the cover have a structure integrally formed of synthetic resin, so that the sliding portion of the compression mechanism is easily covered.

【0010】請求項3にかかる発明は、前記カバーの形
状は、圧縮機構側である底面とシリンダ側の側面とが開
放された略箱形状で、少なくとも1つの側面が前記吸入
マフラで構成されていることによって、圧縮機構の摺動
部を覆うものである。
According to a third aspect of the present invention, the shape of the cover is a substantially box shape with a bottom surface on the compression mechanism side and a side surface on the cylinder side opened, and at least one side surface is constituted by the suction muffler. This covers the sliding part of the compression mechanism.

【0011】請求項4にかかる発明は、前記カバー側面
の下端は、前記ピストンよりも下側に位置する構成を備
えることによって、潤滑油の飛散を防止するものであ
る。
According to a fourth aspect of the invention, the lower end of the side surface of the cover has a structure located below the piston, thereby preventing the lubricating oil from scattering.

【0012】請求項5にかかる発明は、前記カバー側面
の位置は、前記電動機の外周よりも内側に位置する構成
を備えることによって、潤滑油滴が高い位置から直接密
閉容器下部に貯留している潤滑油液面に滴下するのを防
止するものである。
According to a fifth aspect of the present invention, the position of the side surface of the cover is located inside the outer periphery of the electric motor, so that the lubricating oil droplets are directly stored in the lower part of the closed container from a high position. This prevents dripping on the lubricating oil liquid surface.

【0013】[0013]

【発明の実施の形態】本発明の実施の形態を図面を参照
して説明する。なお、従来と同一構成に関しては同一符
号を用いる。
Embodiments of the present invention will be described with reference to the drawings. Note that the same reference numerals are used for the same configurations as those in the related art.

【0014】図1は、本発明の吸入マフラが組み込まれ
た冷媒圧縮機の内部構造を示す平面図であり、図2は同
縦断面図である。図において1は密閉容器であり、この
下部に配置された電動機2と、この電動機2によりクラ
ンクシャフト3を介して上方に設けられている圧縮機構
7を駆動している。圧縮機構7を形成しているピストン
5、スライダー4、クランクシャフト3の摺動部を覆う
カバー20を一体に備えた吸入マフラ10が、シリンダ
6の側部に設けられている。
FIG. 1 is a plan view showing the internal structure of a refrigerant compressor incorporating the suction muffler of the present invention, and FIG. 2 is a longitudinal sectional view of the same. In the figure, reference numeral 1 denotes a closed container, which drives an electric motor 2 disposed at a lower portion thereof and a compression mechanism 7 provided above the electric motor 2 via a crankshaft 3. A suction muffler 10 integrally provided with a cover 5 that covers a sliding portion of the piston 5, the slider 4, and the crankshaft 3 forming the compression mechanism 7 is provided on a side of the cylinder 6.

【0015】この構成により、圧縮機構7の摺動部で発
生する摺動音は、摺動部を覆っているカバー20により
阻止され、密閉容器1内に直接放出されることを防止で
きるので、冷媒圧縮機の騒音を低減することが可能とな
る。
According to this configuration, the sliding noise generated in the sliding portion of the compression mechanism 7 can be prevented by the cover 20 covering the sliding portion, and can be prevented from being directly discharged into the sealed container 1. The noise of the refrigerant compressor can be reduced.

【0016】また、密閉容器1の底部には圧縮機構7の
摺動部と、圧縮機構7を駆動するクランクシャフト3の
軸受摺動部14を潤滑するための潤滑油15を貯留して
おり、クランクシャフト3の下端部に設けられた遠心ポ
ンプ16により潤滑油15を汲み上げ、クランクシャフ
ト3の軸受摺動部14へ給油し、更にクランクシャフト
3の内径に備えた給油孔18を通して上方に位置する圧
縮機構7の摺動部に給油している。
A lubricating oil 15 for lubricating a sliding portion of the compression mechanism 7 and a bearing sliding portion 14 of the crankshaft 3 for driving the compression mechanism 7 is stored at the bottom of the closed casing 1. A lubricating oil 15 is pumped up by a centrifugal pump 16 provided at the lower end of the crankshaft 3, supplied to a bearing sliding portion 14 of the crankshaft 3, and further located upward through an oiling hole 18 provided on the inner diameter of the crankshaft 3. Oil is supplied to the sliding portion of the compression mechanism 7.

【0017】圧縮機構7に給油された潤滑油15は摺動
部を潤滑した後、ピストン5とスライダ4の往復運動に
より摺動部の末端から周囲に飛散する。更に圧縮機構7
に給油して残った余分の潤滑油15は、クランクシャフ
ト3の上端で開放された給油孔18から飛散する。
After lubricating the sliding portion, the lubricating oil 15 supplied to the compression mechanism 7 scatters from the end of the sliding portion to the periphery due to the reciprocating motion of the piston 5 and the slider 4. Furthermore, the compression mechanism 7
The surplus lubricating oil 15 remaining after lubrication is scattered from an oil supply hole 18 opened at the upper end of the crankshaft 3.

【0018】ここで、ピストン5とスライダ4及びクラ
ンクシャフト3の上端の周囲は、シリンダ6の側部に設
けられている吸入マフラ10と一体に形成されたカバー
20により覆われており、このカバー20の側面下端は
ピストン5よりも低い位置となっているので、飛散した
潤滑油15はカバー20で捕捉され、油滴となってカバ
ー20の側面から滴下する。
Here, the periphery of the piston 5, the slider 4 and the upper end of the crankshaft 3 are covered by a cover 20 formed integrally with the suction muffler 10 provided on the side of the cylinder 6. Since the lower end of the side surface of the lug 20 is lower than the piston 5, the scattered lubricating oil 15 is caught by the cover 20 and drops as oil droplets from the side surface of the cover 20.

【0019】カバー20の側面の位置は密閉容器1の下
方に設けられた電動機2の外周よりも内側に位置する構
成を備えているので、油滴は電動機2に滴下し、その表
面に沿って下に流れ、電動機2の最下部から密閉容器1
の底部に貯留している潤滑油15の液面に滴下するの
で、液面との衝突音を極小にすることができ、冷媒圧縮
機の騒音増大を防止することが可能になる。
Since the cover 20 has a configuration in which the side surface is located inside the outer periphery of the electric motor 2 provided below the closed container 1, oil droplets drop onto the electric motor 2, and the oil drops along the surface. It flows downward, and from the bottom of the motor 2
Is dropped on the liquid level of the lubricating oil 15 stored at the bottom of the liquid, so that the sound of collision with the liquid level can be minimized, and an increase in the noise of the refrigerant compressor can be prevented.

【0020】また、カバー20と吸入マフラ10とを一
体に備えることによって、個別に備えるものと比べ冷媒
圧縮機の組立て工数を低減でき、更に、カバー20と吸
入マフラ10とを合成樹脂で一体成型で構成することに
より、カバー20の側面の少なくとも1つは吸入マフラ
の側面で共用できることから、製造コストを低くするこ
とが可能となる。
Further, since the cover 20 and the suction muffler 10 are integrally provided, the man-hour for assembling the refrigerant compressor can be reduced as compared with the case where the cover 20 and the suction muffler 10 are separately provided. Since at least one of the side surfaces of the cover 20 can be shared by the side surface of the suction muffler, the manufacturing cost can be reduced.

【0021】[0021]

【発明の効果】以上説明したように請求項1の発明によ
れば、密閉容器内の下部に配置された電動機と、この電
動機により駆動され且つ前記密閉容器内の上部に配置さ
れた圧縮機構とを備え、この圧縮機構には、前記電動機
によりクランクシャフトを介して往復駆動されるピスト
ンを有するシリンダと、冷媒の吸入孔が形成された弁座
板と、この弁座板を介して前記シリンダの端部に取り付
けられたシリンダヘッドと、このシリンダヘッドの前記
弁座板の吸入孔と連通する孔に端部開口部が接続された
通路管を有する吸入マフラとを備えた冷媒圧縮機におい
て、前記吸入マフラには前記圧縮機構の摺動部を覆うカ
バーを一体に備えることによって、密閉容器内への摺動
音の直接放出を阻止し、冷媒圧縮機の騒音を低減するこ
とが可能になる。
As described above, according to the first aspect of the present invention, the electric motor disposed at the lower part in the closed container, and the compression mechanism driven by the electric motor and disposed at the upper part in the closed container, The compression mechanism includes a cylinder having a piston reciprocally driven by the electric motor via a crankshaft, a valve seat plate having a refrigerant suction hole formed therein, and a cylinder having the cylinder through the valve seat plate. A refrigerant compressor comprising: a cylinder head attached to an end; and a suction muffler having a passage pipe having an end opening connected to a hole communicating with a suction hole of the valve seat plate of the cylinder head. Since the suction muffler is integrally provided with a cover that covers the sliding portion of the compression mechanism, it is possible to prevent the sliding noise from being directly emitted into the closed container and reduce the noise of the refrigerant compressor.

【0022】請求項2の発明によれば、前記吸入マフラ
とカバーは、合成樹脂で一体成型した構成を備えること
によって、圧縮機構の摺動部を覆う構造を有する冷媒圧
縮機の組立て工数を少なくでき、価格の上昇を抑えるこ
とが可能になる。
According to the second aspect of the present invention, since the suction muffler and the cover are integrally formed of synthetic resin, the number of steps of assembling the refrigerant compressor having a structure for covering the sliding portion of the compression mechanism is reduced. It is possible to suppress the price rise.

【0023】請求項3の発明によれば、前記カバーの形
状は、圧縮機構側である底面とシリンダ側の側面とが開
放された略箱形状で、少なくとも1つの側面が前記吸入
マフラで構成されていることによって、圧縮機構の摺動
部を覆う構造を低コストで製造することが可能となる。
According to the third aspect of the present invention, the shape of the cover is a substantially box shape in which the bottom surface on the compression mechanism side and the side surface on the cylinder side are open, and at least one side surface is constituted by the suction muffler. This makes it possible to manufacture the structure for covering the sliding portion of the compression mechanism at low cost.

【0024】請求項4の発明によれば、前記カバー側面
の下端は、前記ピストンよりも下側に位置する構成を備
えることによって、圧縮機構から飛散する潤滑油を効果
的に捕捉することが可能になる。
According to the fourth aspect of the present invention, since the lower end of the side surface of the cover is provided below the piston, the lubricating oil scattered from the compression mechanism can be effectively captured. become.

【0025】請求項5の発明によれば、前記カバー側面
の位置は、前記電動機の外周よりも内側に位置する構成
を備えることによって、潤滑油滴が高い位置から直接密
閉容器下部に貯留している潤滑油液面に滴下するのを防
止でき、滴下することにより発生する衝突音を低減する
ことが可能になる。
According to the fifth aspect of the present invention, the position of the side surface of the cover is provided inside the outer periphery of the electric motor so that the lubricating oil droplets are directly stored in the lower part of the closed container from a high position. It can be prevented from dropping on the lubricating oil liquid surface, and the collision noise generated by dropping can be reduced.

【図面の簡単な説明】[Brief description of the drawings]

【図1】本発明の冷媒圧縮機の内部構造を示す平面図で
ある。
FIG. 1 is a plan view showing the internal structure of a refrigerant compressor of the present invention.

【図2】本発明の冷媒圧縮機の内部構造を示す縦断面図
である。
FIG. 2 is a longitudinal sectional view showing the internal structure of the refrigerant compressor of the present invention.

【図3】従来の冷媒圧縮機の内部構造を示す平面図であ
る。
FIG. 3 is a plan view showing the internal structure of a conventional refrigerant compressor.

【図4】従来の冷媒圧縮機の内部構造を示す縦断面図で
ある。
FIG. 4 is a longitudinal sectional view showing the internal structure of a conventional refrigerant compressor.

【符号の説明】[Explanation of symbols]

1 密閉容器 2 電動機 3 クランクシャフト 5 ピストン 6 シリンダ 10 吸入マフラ 20 カバー DESCRIPTION OF SYMBOLS 1 Closed container 2 Electric motor 3 Crankshaft 5 Piston 6 Cylinder 10 Suction muffler 20 Cover

フロントページの続き (72)発明者 昆 努 大阪府守口市京阪本通2丁目5番5号 三 洋電機株式会社内 (72)発明者 大山 強 大阪府守口市京阪本通2丁目5番5号 三 洋電機株式会社内 (72)発明者 渡部 由夫 大阪府守口市京阪本通2丁目5番5号 三 洋電機株式会社内 Fターム(参考) 3H003 AA02 AB03 AC03 AD03 BA05 CB03 Continuing from the front page (72) Inventor Tsutomu Kon 2-5-5 Keihanhondori, Moriguchi-shi, Osaka Sanyo Electric Co., Ltd. (72) Tsuyoshi Oyama 2-5-2-5 Keihanhondori, Moriguchi-shi, Osaka Inside Sanyo Electric Co., Ltd. (72) Inventor Yoshio Watanabe 2-5-5 Keihanhondori, Moriguchi-shi, Osaka F-term in Sanyo Electric Co., Ltd. (reference) 3H003 AA02 AB03 AC03 AD03 BA05 CB03

Claims (5)

【特許請求の範囲】[Claims] 【請求項1】 密閉容器内の下部に配置された電動機
と、この電動機により駆動され且つ前記密閉容器内の上
部に配置された圧縮機構とを備え、この圧縮機構には、
前記電動機によりクランクシャフトを介して往復駆動さ
れるピストンを有するシリンダと、冷媒の吸入孔が形成
された弁座板と、この弁座板を介して前記シリンダの端
部に取り付けられたシリンダヘッドと、このシリンダヘ
ッドの前記弁座板の吸入孔と連通する孔に端部開口部が
接続された通路管を有する吸入マフラとを備えた冷媒圧
縮機において、前記吸入マフラには前記圧縮機構の摺動
部を覆うカバーを一体に備えたことを特徴とする冷媒圧
縮機。
An electric motor disposed at a lower part in a closed container, and a compression mechanism driven by the electric motor and disposed at an upper part in the closed container, the compression mechanism includes:
A cylinder having a piston reciprocally driven via a crankshaft by the electric motor, a valve seat plate having a refrigerant suction hole formed therein, and a cylinder head attached to an end of the cylinder via the valve seat plate. A suction muffler having a passage pipe whose end opening is connected to a hole communicating with the suction hole of the valve seat plate of the cylinder head. A refrigerant compressor comprising an integral cover for covering a moving part.
【請求項2】 前記吸入マフラとカバーは、合成樹脂で
一体成型したものであることを特徴とする請求項1に記
載の冷媒圧縮機。
2. The refrigerant compressor according to claim 1, wherein the suction muffler and the cover are integrally formed of a synthetic resin.
【請求項3】 前記カバーの形状は、圧縮機構側である
底面とシリンダ側の側面とが開放された略箱形状で、少
なくとも1つの側面が前記吸入マフラで構成されている
ことを特徴とする請求項1または請求項2に記載の冷媒
圧縮機。
3. The shape of the cover is substantially box-shaped with a bottom surface on the compression mechanism side and a side surface on the cylinder side being open, and at least one side surface is constituted by the suction muffler. The refrigerant compressor according to claim 1 or 2.
【請求項4】 前記カバー側面の下端は、前記ピストン
よりも下側に位置することを特徴とする請求項1ないし
請求項3に記載の冷媒圧縮機。
4. The refrigerant compressor according to claim 1, wherein a lower end of the side surface of the cover is located below the piston.
【請求項5】 前記カバー側面の位置は、前記電動機の
外周よりも内側に位置することを特徴とする請求項1な
いし請求項4に記載の冷媒圧縮機。
5. The refrigerant compressor according to claim 1, wherein a position of the side surface of the cover is located inside an outer periphery of the electric motor.
JP2000025097A 2000-02-02 2000-02-02 Refrigerant compressor Expired - Fee Related JP3723399B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2000025097A JP3723399B2 (en) 2000-02-02 2000-02-02 Refrigerant compressor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2000025097A JP3723399B2 (en) 2000-02-02 2000-02-02 Refrigerant compressor

Publications (2)

Publication Number Publication Date
JP2001214859A true JP2001214859A (en) 2001-08-10
JP3723399B2 JP3723399B2 (en) 2005-12-07

Family

ID=18551003

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2000025097A Expired - Fee Related JP3723399B2 (en) 2000-02-02 2000-02-02 Refrigerant compressor

Country Status (1)

Country Link
JP (1) JP3723399B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20140010685A1 (en) * 2011-03-23 2014-01-09 Panasonic Corporation Sealed compressor
CN113374673A (en) * 2021-07-08 2021-09-10 珠海格力节能环保制冷技术研究中心有限公司 Cylinder block for piston compressor and piston compressor

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20140010685A1 (en) * 2011-03-23 2014-01-09 Panasonic Corporation Sealed compressor
CN113374673A (en) * 2021-07-08 2021-09-10 珠海格力节能环保制冷技术研究中心有限公司 Cylinder block for piston compressor and piston compressor
CN113374673B (en) * 2021-07-08 2022-08-30 珠海格力节能环保制冷技术研究中心有限公司 Cylinder block for piston compressor and piston compressor

Also Published As

Publication number Publication date
JP3723399B2 (en) 2005-12-07

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