JP2001003866A - Hermetic compressor - Google Patents
Hermetic compressorInfo
- Publication number
- JP2001003866A JP2001003866A JP11172025A JP17202599A JP2001003866A JP 2001003866 A JP2001003866 A JP 2001003866A JP 11172025 A JP11172025 A JP 11172025A JP 17202599 A JP17202599 A JP 17202599A JP 2001003866 A JP2001003866 A JP 2001003866A
- Authority
- JP
- Japan
- Prior art keywords
- oil
- shaft
- discharge hole
- lubricating oil
- hermetic compressor
- 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.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C23/00—Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids
- F04C23/008—Hermetic pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
- F04C29/02—Lubrication; Lubricant separation
- F04C29/023—Lubricant distribution through a hollow driving shaft
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
- F04C29/02—Lubrication; Lubricant separation
- F04C29/028—Means for improving or restricting lubricant flow
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
- F04C18/02—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents
- F04C18/0207—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents both members having co-operating elements in spiral form
- F04C18/0215—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents both members having co-operating elements in spiral form where only one member is moving
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Compressor (AREA)
- Rotary Pumps (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、空気調和機等に使
用される密閉型圧縮機に係り、詳しくは電動機の回転数
に応じて圧縮部の摺動部に適正な流量の潤滑油を供給す
るようにした構造に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hermetic compressor used for an air conditioner or the like, and more particularly, to supplying a suitable amount of lubricating oil to a sliding portion of a compression section according to the number of revolutions of an electric motor. Related to the structure.
【０００２】[0002]
【従来の技術】従来の密閉型圧縮機は例えば図７に示す
ように、密閉容器１内に左右に電動機２と圧縮部３を配
置し、同圧縮部３を、鏡板の内面に渦捲き状のラップを
立設させた固定スクロール４と旋回スクロール５とを互
いに噛み合わせ圧縮室６を形成し、前記旋回スクロール
５の旋回駆動軸5aを挿入したクランク軸７を形成して旋
回駆動し、左端から右端まで貫通する潤滑油送路８を形
成したシャフト９と、前記クランク軸７を軸支するフレ
ーム10とで密閉型圧縮機を構成している。2. Description of the Related Art As shown in FIG. 7, for example, a conventional hermetic compressor has an electric motor 2 and a compression section 3 arranged on the left and right sides in a closed vessel 1, and the compression section 3 is spirally formed on the inner surface of a head plate. The fixed scroll 4 and the orbiting scroll 5 on which the wraps are erected are engaged with each other to form a compression chamber 6, and a crankshaft 7 into which the orbiting drive shaft 5a of the orbiting scroll 5 is inserted is formed and driven to orbit. A shaft 9 having a lubricating oil passage 8 penetrating therethrough and a frame 10 supporting the crankshaft 7 constitute a hermetic compressor.
【０００３】前記潤滑油送路８を通して前記圧縮部３の
摺動部に潤滑油を供給するオイルポンプ11と、前記密閉
容器１の底部に設けられた油溜め部12から潤滑油12a を
吸入し、前記オイルポンプ11に導く給油管13とで構成さ
れている。前記油溜め12を前記オイルポンプ11を収容す
るオイルポンプ室11a と、前記電動機２を収容する電動
機室2aの底部とし、前記電動機室2aの電動機２と前記圧
縮部３間に接続された吸入管15を通して低圧冷媒ガスお
よび潤滑油12a が循環し電動機室2aに吸入されると同時
に、前記圧縮部３に冷媒ガスが吸入され、圧縮された圧
縮ガスは吐出室14を経由し吐出管16より外部に吐出され
る。[0003] An oil pump 11 for supplying lubricating oil to the sliding portion of the compression unit 3 through the lubricating oil supply passage 8 and a lubricating oil 12 a is sucked from an oil reservoir 12 provided at the bottom of the closed container 1. , And an oil supply pipe 13 leading to the oil pump 11. An oil pump chamber 11a for housing the oil pump 11 and a bottom of an electric motor chamber 2a for housing the electric motor 2; a suction pipe connected between the electric motor 2 and the compression section 3 of the electric motor chamber 2a; The low-pressure refrigerant gas and the lubricating oil 12a circulate through 15 and are sucked into the motor chamber 2a. At the same time, the refrigerant gas is sucked into the compression section 3 and the compressed gas passes through the discharge chamber 14 and is discharged from the discharge pipe 16 to the outside. Is discharged.
【０００４】上記構成において、摺動部に供給された潤
滑油は、例えば、冷媒ガス中に混じって吸込管15を通し
てメインフレーム10と電動機２間のメインフレーム室2b
に吸入され、ガスと分離し底部の油溜め12に戻される。
メインフレーム室2bに戻された油は、電動機２に配置さ
れた油通路を通過してオイルポンプ室11a へと導かれる
ため、通路抵抗を持ちオイルポンプ室11a の油面の高さ
が減少する。一方、前記シャフト９の回転を利用した容
積型ポンプの場合、回転数に比例して給油流量が多くな
る。しかしながら、前記圧縮部３の摺動部に必要な流量
は回転数に余り関係なく、ほぼ一定のため、高回転域で
は摺動部に必要以上の油が供給され、オイルポンプ室11
a の油面の高さを確保できないという問題があった。In the above configuration, the lubricating oil supplied to the sliding portion is mixed with, for example, a refrigerant gas and passes through the suction pipe 15 to the main frame chamber 2b between the main frame 10 and the electric motor 2.
And is separated from the gas and returned to the oil reservoir 12 at the bottom.
The oil returned to the main frame chamber 2b passes through an oil passage arranged in the electric motor 2 and is guided to the oil pump chamber 11a, so that the oil surface of the oil pump chamber 11a has a passage resistance and the height of the oil level in the oil pump chamber 11a decreases. . On the other hand, in the case of a positive displacement pump utilizing the rotation of the shaft 9, the oil supply flow rate increases in proportion to the rotation speed. However, the flow rate required for the sliding section of the compression section 3 is almost constant regardless of the number of rotations, so that in the high rotation range, more oil is supplied to the sliding section than necessary, and the oil pump chamber 11
There was a problem that the height of the oil level in a could not be secured.
【０００５】[0005]
【発明が解決しようとする課題】本発明は上記問題点に
鑑みなされたもので、電動機の回転数に応じて圧縮部の
摺動部に適正な潤滑油の流量を供給し、かつ、オイルポ
ンプ室の油面の高さが確保でき、信頼性を向上すること
ができる密閉型圧縮機を提供することを目的としてい
る。SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and provides an appropriate flow rate of lubricating oil to a sliding portion of a compression portion in accordance with the rotation speed of an electric motor. It is an object of the present invention to provide a hermetic compressor capable of ensuring a high oil level in a chamber and improving reliability.
【０００６】[0006]
【課題を解決するための手段】本発明は上記の課題を解
決するためなされたもので、底部に油溜めを有した密閉
容器内に、冷媒を圧縮する圧縮部と、同圧縮部を駆動す
る電動機と、この電動機の回転力を前記圧縮部に伝達す
るとともに、潤滑油送路が穿設されたシャフトと、前記
電動機を収容する電動機室に接続され、冷媒および潤滑
油を吸入する吸入管と、前記油溜めから潤滑油を吸入す
る給油管を備え、前記圧縮部の摺動部に前記シャフトの
一端から、前記潤滑油送路を通して前記圧縮部の摺動部
に潤滑油を供給するオイルポンプから構成され、前記油
溜めを前記電動機室と前記オイルポンプを収容するオイ
ルポンプ室の底部としてなる密閉型圧縮機において、前
記シャフトに前記潤滑油送路に直交し、同潤滑油送路と
前記電動機室を連通する排出孔を穿設するとともに、同
排出孔内に、同排出孔を開閉する弁体を設け、前記シャ
フトの外周に、前記排出孔と前記電動機室を連通する透
孔を備えた弁押えを設ける一方、同弁押えと前記弁体と
の間に弾性力により前記弁体を移動可能にする弾性部材
と設け、前記シャフトの回転数が低い場合には、前記弾
性部材の弾性力によって前記弁体を一方向に移動させて
前記排出孔を閉じ、回転数が高い場合には、遠心力によ
って前記弾性部材の弾性力に抗して前記弁体を他方向に
移動させて前記排出孔を開いてなる構成となっている。SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and a compressor for compressing a refrigerant and driving the compressor in a closed container having an oil reservoir at the bottom. An electric motor, which transmits a rotational force of the electric motor to the compression unit, and a shaft provided with a lubricating oil supply passage, and a suction pipe connected to an electric motor chamber that houses the electric motor and sucking refrigerant and lubricating oil. An oil pump for supplying lubricating oil to the sliding section of the compression section from one end of the shaft to the sliding section of the compression section through one end of the lubricating oil supply path; In the hermetic compressor, wherein the oil sump serves as a bottom of an oil pump chamber that houses the electric motor chamber and the oil pump, the shaft is orthogonal to the lubricating oil passage, the lubricating oil passage and the lubricating oil passage Connect the motor room A valve body for opening and closing the discharge hole is provided in the discharge hole, and a valve retainer having a through hole communicating the discharge hole and the motor chamber is provided on the outer periphery of the shaft. On the other hand, an elastic member is provided between the valve presser and the valve body to allow the valve body to move by elastic force. The valve is moved in one direction to close the discharge hole, and when the rotation speed is high, the valve is moved in the other direction against the elastic force of the elastic member by centrifugal force to open the discharge hole. The configuration is
【０００７】また、前記弾性部材にバネを用いた構成と
なっている。[0007] Further, the elastic member is configured to use a spring.
【０００８】また、前記排出孔の孔径を前記シャフトの
外周側に行くに従い大きくした構成となっている。[0008] In addition, the diameter of the discharge hole is increased toward the outer peripheral side of the shaft.
【０００９】また、前記排出孔を円錐状に形成した構成
となっている。Further, the discharge hole is formed in a conical shape.
【００１０】また、前記排出孔の孔径を多段に形成した
構成となっている。[0010] Further, the discharge holes are formed in multiple stages.
【００１１】また、前記排出孔を前記電動機室の後方に
設けた構成となっている。Further, the discharge hole is provided at the rear of the motor room.
【００１２】また、前記弁押えの周りにオイルキャップ
を設けた構成となっている。Further, an oil cap is provided around the valve retainer.
【００１３】また、前記オイルキャップを前記シャフト
を軸支するサブフレームに固定した構成となっている。[0013] Further, the oil cap is fixed to a sub-frame that supports the shaft.
【００１４】また、前記オイルキャップの底部に油排出
孔を設けた構成となっている。Further, the oil cap is provided with an oil discharge hole at the bottom.
【００１５】また、前記オイルポンプ内の前記シャフト
の外周に油排出室を設け、前記シャフト内に前記潤滑油
送路に直交し、同潤滑油送路と前記油排出室を連通する
排出孔を穿設し、同排出孔に弾性部材の弾性力により、
移動可能に弁体を配置し、前記シャフトの外周に、前記
排出孔と前記油排出室を連通する透孔を備え、前記弁体
を押さえる弁押えを設け、前記油排出室と前記オイルポ
ンプ室とを連通する排出管を設けた構成となっている。Further, an oil discharge chamber is provided on the outer periphery of the shaft in the oil pump, and a discharge hole is provided in the shaft orthogonal to the lubricating oil supply path and communicates with the lubricating oil supply path and the oil discharge chamber. Drilled into the discharge hole by the elastic force of the elastic member.
A valve body is movably arranged, a through hole communicating with the discharge hole and the oil discharge chamber is provided on an outer periphery of the shaft, and a valve presser for holding the valve body is provided, and the oil discharge chamber and the oil pump chamber are provided. And a discharge pipe that communicates with.
【００１６】また、底部に油溜めを有した密閉容器内
に、冷媒を圧縮する圧縮部と、同圧縮部を駆動する電動
機と、この電動機の回転力を前記圧縮部に伝達するとと
もに、潤滑油送路が穿設されたシャフトと、前記電動機
を収容する電動機室に接続され、冷媒および潤滑油を吸
入する吸入管と、前記油溜めから潤滑油を吸入する給油
管を備え、前記圧縮部の摺動部に前記シャフトの一端か
ら、前記潤滑油送路を通して前記圧縮部の摺動部に潤滑
油を供給するオイルポンプから構成され、前記油溜めを
前記電動機室と前記オイルポンプを収容するオイルポン
プ室の底部としてなる密閉型圧縮機において、前記潤滑
油送路を途中より油送路径を入口側の径より大きく穿設
し、この大径路に前記潤滑油送路の入口側に向け開口す
る傘形状の弁体を設け、同弁体を押さえる透孔を備えた
弁押えを設け、前記弁体の開口部が前記シャフトの回転
数が高くなるほど開いた構成となっている。Further, in a closed container having an oil reservoir at the bottom, a compression section for compressing the refrigerant, an electric motor for driving the compression section, a torque of the electric motor are transmitted to the compression section, and a lubricating oil is provided. A shaft provided with a feed passage, a suction pipe connected to an electric motor chamber containing the electric motor, for sucking refrigerant and lubricating oil, and an oil supply pipe for sucking lubricating oil from the oil reservoir; An oil pump configured to supply lubricating oil to the sliding portion of the compression portion through the lubricating oil passage from one end of the shaft to the sliding portion, and the oil reservoir stores the oil in the motor chamber and the oil pump. In the hermetic-type compressor serving as the bottom of the pump chamber, the lubricating oil supply path is formed so that the diameter of the lubricating oil path is larger than the diameter of the inlet side, and the large-diameter path is opened toward the inlet side of the lubricating oil path. Umbrella shaped valve Has a structure in which the Ben'osae having a hole for holding the same valve body is provided, opening of the valve body is opened as the higher the rotational speed of the shaft.
【００１７】また、前記傘形状の弁体の開口部側外周に
おもりを設けた構成となっている。Further, a weight is provided on the outer periphery of the umbrella-shaped valve body on the opening side.
【００１８】また、前記傘形状の弁体を前記潤滑油送路
の略中央部に設けた構成となっている。Further, the umbrella-shaped valve element is provided substantially at the center of the lubricating oil supply passage.
【００１９】また、前記弁押えの透孔を複数形成した構
成となっている。Further, a plurality of through holes for the valve retainer are formed.
【００２０】[0020]
【発明の実施の形態】以下、本発明の実施の形態を図面
に基づいた実施例として詳細に説明する。図１および図
２（Ａ）、（Ｂ）、（Ｃ）において、密閉容器１内に左
右に電動機２と圧縮部３を配置し、同圧縮部３を、鏡板
の内面に渦捲き状のラップを立設させた固定スクロール
４と旋回スクロール５とを互いに噛み合わせ圧縮室６を
形成し、前記旋回スクロール５の旋回駆動軸5aを挿入し
たクランク軸７を形成して旋回駆動し、左端から右端ま
で貫通する潤滑油送路８を形成したシャフト９と、前記
クランク軸７を軸支するフレーム10とで密閉型圧縮機を
構成している。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings as examples. 1 and 2 (A), 2 (B) and 2 (C), an electric motor 2 and a compression unit 3 are arranged on the left and right sides in a closed container 1, and the compression unit 3 is provided with a spiral wrap on the inner surface of a head plate. The fixed scroll 4 and the orbiting scroll 5, which are provided upright, mesh with each other to form a compression chamber 6, form a crankshaft 7 into which the orbiting drive shaft 5 a of the orbiting scroll 5 is inserted, and orbitally drive the same. A hermetic compressor is composed of a shaft 9 having a lubricating oil passage 8 extending therethrough and a frame 10 supporting the crankshaft 7.
【００２１】前記潤滑油送路８を通して前記圧縮部３の
摺動部に潤滑油を供給するオイルポンプ11と、前記密閉
容器１の底部に設けられた油溜め部12から潤滑油12a を
吸入し、前記オイルポンプ11に導く給油管13とで構成さ
れている。前記油溜め12を前記オイルポンプ11を収容す
るオイルポンプ室11a と、前記電動機２を収容する電動
機室2aの底部とし、前記電動機室2aの電動機２と前記圧
縮部３間に接続された吸入管15を通して低圧冷媒ガスお
よび潤滑油12a が循環し電動機室2aに吸入されると同時
に、前記圧縮部３に冷媒ガスが吸入され、圧縮された圧
縮ガスは吐出室14を経由し吐出管16より外部に吐出され
る。The lubricating oil 12a is sucked from an oil pump 11 for supplying lubricating oil to the sliding portion of the compression unit 3 through the lubricating oil supply passage 8 and an oil reservoir 12 provided at the bottom of the closed vessel 1. , And an oil supply pipe 13 leading to the oil pump 11. An oil pump chamber 11a for housing the oil pump 11 and a bottom of an electric motor chamber 2a for housing the electric motor 2; a suction pipe connected between the electric motor 2 and the compression section 3 of the electric motor chamber 2a; The low-pressure refrigerant gas and the lubricating oil 12a circulate through 15 and are sucked into the motor chamber 2a. At the same time, the refrigerant gas is sucked into the compression section 3 and the compressed gas passes through the discharge chamber 14 and is discharged from the discharge pipe 16 to the outside. Is discharged.
【００２２】前記シャフト９内に前記潤滑油送路８に直
交し、同潤滑油送路８と前記電動機室2aを連通する排出
孔17を穿設し、同排出孔17にバネ材等からなる弾性部材
18の弾性力により、移動可能に弁体19を配置し、前記シ
ャフト９の外周に、前記排出孔17と前記電動機室2aを連
通する複数の透孔20a を備え、前記弁体19および前記弾
性部材18を押さえる弁押え20を設け、前記シャフト９の
回転数が低い場合には、前記弾性部材18の弾性力によっ
て前記弁体19を一方向に移動させて、前記潤滑油送路８
側の前記排出孔17を閉じ、回転数が高い場合には、遠心
力によって前記弾性部材18の弾性力に抗して前記弁体19
を他方向に移動させて、前記潤滑油送路８側の前記排出
孔17を開く構成となっている。A discharge hole 17 is formed in the shaft 9 at right angles to the lubricating oil passage 8 and communicates the lubricating oil passage 8 with the motor chamber 2a. The discharge hole 17 is made of a spring material or the like. Elastic member
A valve body 19 is movably disposed by the elastic force of 18, and a plurality of through holes 20a communicating the discharge hole 17 and the electric motor chamber 2a are provided on the outer periphery of the shaft 9, and the valve body 19 and the elasticity are provided. When the number of rotations of the shaft 9 is low, the valve body 19 is moved in one direction by the elastic force of the elastic member 18 so that the lubricating oil passage 8 is moved.
When the rotation speed is high, the valve body 19 is opposed to the elastic force of the elastic member 18 by centrifugal force.
Is moved in the other direction to open the discharge hole 17 on the lubricating oil supply path 8 side.
【００２３】また、図２（Ｃ）に示すように、前記排出
孔17の孔径を前記シャフト９の外周側に行くに従い大き
くした円錐状の構造とすることにより、遠心力に見合う
位置にバネの変位が移動し、その位置に応じて排出孔17
の開口面積が広がっている。即ち、排出孔17の開口面が
シャフトの回転数が上がるほど、油の排出量が多くなる
ため、油を排出し易くしている。As shown in FIG. 2 (C), the diameter of the discharge hole 17 is increased toward the outer periphery of the shaft 9 so as to have a conical structure. The displacement moves, and the discharge holes 17
The opening area of is widened. In other words, the higher the number of rotations of the shaft of the opening surface of the discharge hole 17, the greater the amount of oil discharged, so that the oil is easily discharged.
【００２４】また、図３は本発明の第二の実施例を示し
たもので、排出孔17a の孔径を前記シャフト９の外周側
に行くに従い多段階式に大きくしたもので、前記同様に
シャフト９の回転数が上がるほど、油を排出し易くして
いる。FIG. 3 shows a second embodiment of the present invention in which the diameter of the discharge hole 17a is increased in a multi-step manner toward the outer peripheral side of the shaft 9. As the number of rotations increases, oil is more easily discharged.
【００２５】また、前記排出孔を前記電動機室の後方に
設けた構成とすることにより、余剰油を早くオイルポン
プ室11a の油溜め12に戻すことができる。Further, by providing the discharge hole at the rear of the motor chamber, surplus oil can be quickly returned to the oil reservoir 12 of the oil pump chamber 11a.
【００２６】また、図４は本発明の第三の実施例を示し
たもので、前記シャフト９の遠心力により、前記電動機
室2aへの油の飛散を防止するため、前記弁押え20の周り
にオイルキャップ21を設けたもので、凹状のオイルキャ
ップ21を前記シャフト９を軸支するサブフレーム22に固
定し、オイルキャップ21の底部に油排出孔21a を設け、
排出油を油溜め12に戻す構成となっている。FIG. 4 shows a third embodiment of the present invention. In order to prevent oil from splashing into the electric motor chamber 2a due to the centrifugal force of the shaft 9, the vicinity of the valve retainer 20 is prevented. An oil cap 21 is provided on the sub-frame 22 that fixes the concave oil cap 21 to the shaft 9, and an oil discharge hole 21 a is provided at the bottom of the oil cap 21.
The structure is such that the discharged oil is returned to the oil reservoir 12.
【００２７】また、図５は本発明の第三の実施例を示し
たもので、前記オイルポンプ11内の前記シャフト９の外
周に油排出室23を設け、前記シャフト９内に前記潤滑油
送路８に直交し、同潤滑油送路８と前記油排出室23を連
通する排出孔17b を穿設し、同排出孔17b に弾性部材18
の弾性力により、移動可能に弁体19を配置し、前記シャ
フト９の外周に、前記排出孔17a と前記油排出室23を連
通する透孔を備え、前記弁体19を押さえる弁押え20を設
け、前記油排出室23と前記オイルポンプ室11aとを連通
する排出管23a を設けた構成とすることにより、前記シ
ャフト９の遠心力による油の飛散を防止するとともに、
余剰油を早くオイルポンプ室11a の油溜め12に戻すこと
ができる。FIG. 5 shows a third embodiment of the present invention. An oil discharge chamber 23 is provided on the outer periphery of the shaft 9 in the oil pump 11, and the lubricating oil supply 23 is provided in the shaft 9. A discharge hole 17b is formed which is perpendicular to the passage 8 and communicates the lubricating oil supply passage 8 with the oil discharge chamber 23. The discharge hole 17b has an elastic member 18 provided therein.
The valve body 19 is movably disposed by the elastic force of the valve body, and the outer periphery of the shaft 9 is provided with a through-hole communicating the discharge hole 17a and the oil discharge chamber 23, and the valve presser 20 for pressing the valve body 19 is provided. By providing a discharge pipe 23a for communicating the oil discharge chamber 23 and the oil pump chamber 11a, oil is prevented from scattering due to centrifugal force of the shaft 9,
Excess oil can be quickly returned to the oil reservoir 12 of the oil pump chamber 11a.
【００２８】また、図６は本発明の第三の実施例を示し
たもので、 前記潤滑油送路８を途中より油送路径を入
口側の径より大きく穿設し、この大径路に前記潤滑油送
路８の入口側に向け開口し、同開口部が弾性力によって
収縮可能な傘形状の弁体24を設け、同弁体24を押さえる
透孔25a を備えた弁押え25を設けた構成とすることによ
り、シャフト９の回転数が低い場合は、弁体24の弾性力
によって、その開口部24a を閉じ、油の流量を多くし、
回転数が高い場合は、遠心力が弁体24の弾性力を抗して
その開口部24a を開いて、油の流量を減少させ、回転数
に応じて圧縮部３の摺動部へ適正な潤滑油を供給するこ
とができる。FIG. 6 shows a third embodiment of the present invention. In the lubricating oil passage 8, a diameter of the oil passage is made larger than the diameter of the inlet side in the middle, and the lubricating oil passage 8 An umbrella-shaped valve element 24 which opens toward the inlet side of the lubricating oil supply passage 8 and whose opening can be contracted by elastic force is provided, and a valve retainer 25 having a through hole 25a for holding the valve element 24 is provided. With this configuration, when the rotation speed of the shaft 9 is low, the opening 24a is closed by the elastic force of the valve body 24, and the oil flow rate is increased.
When the rotation speed is high, the centrifugal force opposes the elastic force of the valve body 24 to open the opening 24a, thereby reducing the oil flow rate, and appropriately adjusting the rotation speed to the sliding portion of the compression unit 3 according to the rotation speed. Lubricating oil can be supplied.
【００２９】また、前記傘形状の弁体の開口部側外周に
おもりを設け、遠心力による弁体24の開口部24a を開き
易くした構成となっている。また、前記傘形状の弁体を
前記潤滑油送路の略中央部に設けた構成となっている。A weight is provided on the outer periphery of the umbrella-shaped valve body on the opening side, so that the opening 24a of the valve body 24 is easily opened by centrifugal force. Further, the umbrella-shaped valve element is provided substantially at the center of the lubricating oil supply passage.
【００３０】上記構成において、前記シャフト９の回転
数が低い場合には、前記弾性部材18の弾性力によって前
記弁体19を一方向に移動させて前記排出孔17を閉じ、圧
縮部３の摺動部に油を適正に供給し、回転数が高い場合
には、遠心力によって前記弾性部材18の弾性力に抗して
前記弁体19を他方向に移動させて前記排出孔17を開いて
圧縮部３の摺動部への油の流量を減らし、電動機の回転
数に応じて圧縮部３の摺動部に、常に適正な潤滑油の流
量を供給し、かつ、オイルポンプ室11a の油面の高さが
確保でき、信頼性を向上することができる密閉型圧縮機
となる。In the above configuration, when the rotation speed of the shaft 9 is low, the valve element 19 is moved in one direction by the elastic force of the elastic member 18 to close the discharge hole 17 and the sliding of the compression section 3 is performed. The oil is supplied to the moving part properly, and when the number of rotations is high, the valve body 19 is moved in the other direction against the elastic force of the elastic member 18 by centrifugal force to open the discharge hole 17. The flow rate of oil to the sliding part of the compression part 3 is reduced, an appropriate lubricating oil flow is always supplied to the sliding part of the compression part 3 according to the rotation speed of the electric motor, and the oil in the oil pump chamber 11a is reduced. The hermetic compressor can secure the height of the surface and improve the reliability.
【００３１】[0031]
【発明の効果】以上のように本発明においては、前記シ
ャフトの回転数が低い場合には、前記弾性部材の弾性力
によって前記弁体を一方向に移動させて前記排出孔を閉
じ、圧縮部の摺動部に油を適正に供給し、回転数が高い
場合には、遠心力によって前記弾性部材の弾性力に抗し
て前記弁体を他方向に移動させて前記排出孔を開いて圧
縮部の摺動部への油の流量を減らし、電動機の回転数に
応じて圧縮部の摺動部に、常に適正な潤滑油の流量を供
給し、かつ、オイルポンプ室の油面の高さが確保でき、
信頼性を向上することができる密閉型圧縮機となる。As described above, according to the present invention, when the rotation speed of the shaft is low, the valve body is moved in one direction by the elastic force of the elastic member to close the discharge hole, and the compression unit When the rotation speed is high, the valve body is moved in the other direction against the elastic force of the elastic member by centrifugal force, and the discharge hole is opened to compress the oil. Reduce the flow of oil to the sliding part of the part, always supply the proper amount of lubricating oil to the sliding part of the compression part according to the rotation speed of the motor, and maintain the oil level of the oil pump chamber. Can be secured,
It becomes a hermetic compressor that can improve reliability.
【図１】本発明の実施例を示す密閉型圧縮機の横断面図
である。FIG. 1 is a transverse sectional view of a hermetic compressor showing an embodiment of the present invention.
【図２】本発明の第一の実施例を示す要部拡大図で、
（Ａ）は低回転時の断面図、（Ｂ）は高回転時の断面
図、（Ｃ）は排出孔の斜視図である。FIG. 2 is an enlarged view of a main part showing a first embodiment of the present invention;
(A) is a sectional view at the time of low rotation, (B) is a sectional view at the time of high rotation, and (C) is a perspective view of a discharge hole.
【図３】本発明の第二の実施例を示す要部拡大図断面図
である。FIG. 3 is an enlarged sectional view of a main part showing a second embodiment of the present invention.
【図４】本発明の第三の実施例を示す要部拡大図断面図
である。FIG. 4 is an enlarged sectional view of a main part showing a third embodiment of the present invention.
【図５】本発明の第四の実施例を示す要部拡大図断面図
である。FIG. 5 is an enlarged sectional view of a main part showing a fourth embodiment of the present invention.
【図６】本発明の第五の実施例を示す要部拡大図で、
（Ａ）は低回転時の断面図、（Ｂ）は高回転時の断面
図、（Ｃ）は弁体の斜視図である。FIG. 6 is an enlarged view of a main part showing a fifth embodiment of the present invention;
(A) is a sectional view at the time of low rotation, (B) is a sectional view at the time of high rotation, and (C) is a perspective view of the valve body.
【図７】従来例を示す密閉型圧縮機の横断面図である。FIG. 7 is a cross-sectional view of a hermetic compressor showing a conventional example.
【符号の説明】 １ 密閉容器 ２ 電動機 2a 電動機室 ３ 圧縮部 ４ 固定スクロール 4a 吐出口 ５ 旋回スクロール 5a 旋回駆動軸 ６ 圧縮室 ７ クランク軸 ８ 潤滑油送路 ９ シャフト 10 フレーム 11 オイルポンプ 12 油溜め 13 給油管 14 吐出室 15 吸入管 16 吐出管 17 排出孔 18 弾性部材（バネ） 19 弁体 20 弁押さえ 20a 透孔 21 オイルキャップ[Description of Signs] 1 Closed container 2 Electric motor 2a Electric motor room 3 Compressor 4 Fixed scroll 4a Discharge port 5 Orbiting scroll 5a Orbiting drive shaft 6 Compression chamber 7 Crank shaft 8 Lubricating oil feed path 9 Shaft 10 Frame 11 Oil pump 12 Oil sump 13 Oil supply pipe 14 Discharge chamber 15 Suction pipe 16 Discharge pipe 17 Discharge hole 18 Elastic member (spring) 19 Valve body 20 Valve holder 20a Through hole 21 Oil cap
───────────────────────────────────────────────────── フロントページの続き (72)発明者 古川 基信 川崎市高津区末長1116番地 株式会社富士 通ゼネラル内 Ｆターム(参考） 3H003 AA05 AB05 AC03 BD03 BD07 BD13 CA01 3H029 AA02 AA15 AB03 BB06 BB44 CC32 3H039 AA02 AA06 AA12 BB11 CC10 CC27 CC43 ────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Motonobu Furukawa 1116, Suenaga, Takatsu-ku, Kawasaki F-term in Fujitsu General Limited 3H003 AA05 AB05 AC03 BD03 BD07 BD13 CA01 3H029 AA02 AA15 AB03 BB06 BB44 CC32 3H039 AA02 AA06 AA12 BB11 CC10 CC27 CC43
Claims (14)
媒を圧縮する圧縮部と、同圧縮部を駆動する電動機と、
この電動機の回転力を前記圧縮部に伝達するとともに、
潤滑油送路が穿設されたシャフトと、前記電動機を収容
する電動機室に接続され、冷媒および潤滑油を吸入する
吸入管と、前記油溜めから潤滑油を吸入する給油管を備
え、前記圧縮部の摺動部に前記シャフトの一端から、前
記潤滑油送路を通して前記圧縮部の摺動部に潤滑油を供
給するオイルポンプから構成され、前記油溜めを前記電
動機室と前記オイルポンプを収容するオイルポンプ室の
底部としてなる密閉型圧縮機において、 前記シャフトに前記潤滑油送路に直交し、同潤滑油送路
と前記電動機室を連通する排出孔を穿設するとともに、
同排出孔内に、同排出孔を開閉する弁体を設け、前記シ
ャフトの外周に、前記排出孔と前記電動機室を連通する
透孔を備えた弁押えを設ける一方、同弁押えと前記弁体
との間に弾性力により前記弁体を移動可能にする弾性部
材と設け、前記シャフトの回転数が低い場合には、前記
弾性部材の弾性力によって前記弁体を一方向に移動させ
て前記排出孔を閉じ、回転数が高い場合には、遠心力に
よって前記弾性部材の弾性力に抗して前記弁体を他方向
に移動させて前記排出孔を開いてなることを特徴とする
密閉型圧縮機。1. A compression unit for compressing a refrigerant in an airtight container having an oil reservoir at a bottom, an electric motor driving the compression unit,
While transmitting the torque of the electric motor to the compression unit,
A shaft provided with a lubricating oil supply passage, a suction pipe connected to an electric motor chamber containing the electric motor, for sucking refrigerant and lubricating oil, and an oil supply pipe for sucking lubricating oil from the oil reservoir; An oil pump for supplying lubricating oil from one end of the shaft to the sliding portion of the shaft through the lubricating oil supply path to the sliding portion of the compression portion, wherein the oil sump accommodates the motor chamber and the oil pump. In the hermetic compressor serving as the bottom of the oil pump chamber, the shaft is provided with a discharge hole orthogonal to the lubricating oil passage and communicating the lubricating oil passage with the motor chamber.
A valve body for opening and closing the discharge hole is provided in the discharge hole, and a valve retainer having a through hole communicating the discharge hole and the electric motor chamber is provided on the outer periphery of the shaft, while the valve retainer and the valve are provided. An elastic member that allows the valve body to move between the body and the body by an elastic force, and when the rotation speed of the shaft is low, the valve body is moved in one direction by the elastic force of the elastic member, A closed type wherein the discharge hole is closed, and when the rotation speed is high, the valve body is moved in the other direction against the elastic force of the elastic member by centrifugal force to open the discharge hole. Compressor.
特徴とする請求項１記載の密閉型圧縮機。2. The hermetic compressor according to claim 1, wherein a spring is used for said elastic member.
側に行くに従い大きくしてなることを特徴とする請求項
１記載の密閉型圧縮機。3. The hermetic compressor according to claim 1, wherein the diameter of the discharge hole is increased toward the outer peripheral side of the shaft.
を特徴とする請求項１または３記載の密閉型圧縮機。4. The hermetic compressor according to claim 1, wherein the discharge hole is formed in a conical shape.
ことを特徴とする請求項１または３記載の密閉型圧縮
機。5. The hermetic compressor according to claim 1, wherein the discharge holes are formed in multiple stages.
てなることを特徴とする請求項１、３、４または５記載
の密閉型圧縮機。6. The hermetic compressor according to claim 1, wherein the discharge hole is provided at a rear side of the motor room.
けてなることを特徴とする請求項１記載の密閉型圧縮
機。7. The hermetic compressor according to claim 1, wherein an oil cap is provided around the valve retainer.
支するサブフレームに固定してなることを特徴とする請
求項１または７記載の密閉型圧縮機。8. The hermetic compressor according to claim 1, wherein the oil cap is fixed to a subframe that supports the shaft.
設けてなることを特徴とする請求項１、７または８記載
の密閉型圧縮機。9. The hermetic compressor according to claim 1, wherein an oil discharge hole is provided at a bottom portion of the oil cap.
外周に油排出室を設け、前記シャフト内に前記潤滑油送
路に直交し、同潤滑油送路と前記油排出室を連通する排
出孔を穿設し、同排出孔に弾性部材の弾性力により、移
動可能に弁体を配置し、前記シャフトの外周に、前記排
出孔と前記油排出室を連通する透孔を備え、前記弁体を
押さえる弁押えを設け、前記油排出室と前記オイルポン
プ室とを連通する排出管を設けてなることを特徴とする
請求項１記載の密閉型圧縮機。10. An oil discharge chamber is provided on the outer periphery of the shaft in the oil pump, and a discharge hole is provided in the shaft orthogonal to the lubricating oil passage and communicating the lubricating oil passage with the oil discharge chamber. The valve body is movably disposed by the elastic force of an elastic member in the discharge hole, and the outer periphery of the shaft is provided with a through-hole communicating the discharge hole and the oil discharge chamber. 2. The hermetic compressor according to claim 1, further comprising a valve retainer for holding, and a discharge pipe communicating the oil discharge chamber and the oil pump chamber.
冷媒を圧縮する圧縮部と、同圧縮部を駆動する電動機
と、この電動機の回転力を前記圧縮部に伝達するととも
に、潤滑油送路が穿設されたシャフトと、前記電動機を
収容する電動機室に接続され、冷媒および潤滑油を吸入
する吸入管と、前記油溜めから潤滑油を吸入する給油管
を備え、前記圧縮部の摺動部に前記シャフトの一端か
ら、前記潤滑油送路を通して前記圧縮部の摺動部に潤滑
油を供給するオイルポンプから構成され、前記油溜めを
前記電動機室と前記オイルポンプを収容するオイルポン
プ室の底部としてなる密閉型圧縮機において、 前記潤滑油送路を途中より油送路径を入口側の径より大
きく穿設し、この大径路に前記潤滑油送路の入口側に向
け開口し、同開口部が弾性力により収縮可能な傘形状の
弁体を設け、同弁体を押さえる透孔を備えた弁押えを設
け、前記弁体の開口部が前記シャフトの回転数が高くな
るほど開いてなることを特徴とする密閉型圧縮機。11. A closed container having an oil reservoir at the bottom,
A compression section for compressing the refrigerant, an electric motor for driving the compression section, a shaft for transmitting the rotational force of the electric motor to the compression section and having a lubricating oil supply passage formed therein, and a motor chamber for accommodating the electric motor A suction pipe for sucking refrigerant and lubricating oil, and an oil supply pipe for sucking lubricating oil from the oil sump. A hermetic oil compressor configured to include an oil pump that supplies lubricating oil to a sliding portion of a compression section, wherein the oil reservoir serves as a bottom of an oil pump chamber that houses the electric motor chamber and the oil pump; An oil supply path diameter larger than the diameter of the inlet side is drilled from the middle, and an opening is formed in the large diameter path toward the inlet side of the lubricating oil supply path, and the opening has an umbrella-shaped valve body that can contract by elastic force. Install and hold the valve A hermetic compressor characterized in that a valve retainer having a through hole is provided, and an opening of the valve element is opened as the rotation speed of the shaft increases.
もりを設けてなることを特徴とする請求項１１記載の密
閉型圧縮機。12. The hermetic compressor according to claim 11, wherein a weight is provided on an outer periphery of the umbrella-shaped valve body on an opening side.
略中央部に設けてなることを特徴とする請求項１１また
は１２記載の密閉型圧縮機。13. The hermetic compressor according to claim 11, wherein said umbrella-shaped valve element is provided at a substantially central portion of said lubricating oil supply passage.
ことを特徴とする請求項１または１１記載の密閉型圧縮
機。14. The hermetic compressor according to claim 1, wherein a plurality of through holes for the valve retainer are formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11172025A JP2001003866A (en) | 1999-06-18 | 1999-06-18 | Hermetic compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11172025A JP2001003866A (en) | 1999-06-18 | 1999-06-18 | Hermetic compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2001003866A true JP2001003866A (en) | 2001-01-09 |
Family
ID=15934137
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11172025A Pending JP2001003866A (en) | 1999-06-18 | 1999-06-18 | Hermetic compressor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2001003866A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100635822B1 (en) | 2005-03-30 | 2006-10-19 | 엘지전자 주식회사 | Apparatus for limiting oil supply quantity of an inverter compressor |
| KR100635821B1 (en) | 2005-03-04 | 2006-10-19 | 엘지전자 주식회사 | The controling oil suppling capacity device for inverter compressor |
| JP2009299632A (en) * | 2008-06-16 | 2009-12-24 | Nippon Soken Inc | Compressor |
| CN105697337A (en) * | 2016-02-04 | 2016-06-22 | 广州万宝集团压缩机有限公司 | Self-adaptive oil supply crankshaft |
| CN106468264A (en) * | 2015-08-18 | 2017-03-01 | 珠海格力节能环保制冷技术研究中心有限公司 | Screw compressor and its pump assembly |
| CN106762660A (en) * | 2017-02-27 | 2017-05-31 | 珠海格力节能环保制冷技术研究中心有限公司 | A kind of compressor main shaft and the compressor with it |
| CN109209833A (en) * | 2018-11-16 | 2019-01-15 | 蓝旺节能科技（浙江）有限公司 | A kind of compressor pump oil regulating device for Chinese medicine processing |
| WO2020166464A1 (en) * | 2019-02-13 | 2020-08-20 | 株式会社日立産機システム | Oil-lubricated fluid machine |
-
1999
- 1999-06-18 JP JP11172025A patent/JP2001003866A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100635821B1 (en) | 2005-03-04 | 2006-10-19 | 엘지전자 주식회사 | The controling oil suppling capacity device for inverter compressor |
| KR100635822B1 (en) | 2005-03-30 | 2006-10-19 | 엘지전자 주식회사 | Apparatus for limiting oil supply quantity of an inverter compressor |
| JP2009299632A (en) * | 2008-06-16 | 2009-12-24 | Nippon Soken Inc | Compressor |
| CN106468264A (en) * | 2015-08-18 | 2017-03-01 | 珠海格力节能环保制冷技术研究中心有限公司 | Screw compressor and its pump assembly |
| CN105697337A (en) * | 2016-02-04 | 2016-06-22 | 广州万宝集团压缩机有限公司 | Self-adaptive oil supply crankshaft |
| CN106762660A (en) * | 2017-02-27 | 2017-05-31 | 珠海格力节能环保制冷技术研究中心有限公司 | A kind of compressor main shaft and the compressor with it |
| CN109209833A (en) * | 2018-11-16 | 2019-01-15 | 蓝旺节能科技（浙江）有限公司 | A kind of compressor pump oil regulating device for Chinese medicine processing |
| WO2020166464A1 (en) * | 2019-02-13 | 2020-08-20 | 株式会社日立産機システム | Oil-lubricated fluid machine |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP5765379B2 (en) | Scroll compressor | |
| EP0903499A2 (en) | Scroll compressor | |
| US20020134101A1 (en) | Electrically driven compressors and methods for circulating lubrication oil through the same | |
| US20080267803A1 (en) | Compressor and oil supplying structure therefor | |
| KR101971819B1 (en) | Scroll compressor | |
| US20020136653A1 (en) | Scroll compressors and methods for circulating lubrication oil through the same | |
| JP2001003866A (en) | Hermetic compressor | |
| KR20170000146A (en) | Compressor | |
| CN100394030C (en) | Vane rotary type air pump | |
| JPH0249989A (en) | Horizontal scroll compressor | |
| CN106194750B (en) | Scroll compressor having a plurality of scroll members | |
| US7494329B2 (en) | Oil pump for a compressor | |
| KR20040092381A (en) | Horizontal Rotary Compressor | |
| JP2017015054A (en) | Single screw compressor | |
| CN219159187U (en) | Compressor | |
| US7150603B2 (en) | Compressor | |
| JP2000291552A (en) | Closed type compressor | |
| JP2001020888A (en) | Hermetic compressor | |
| EP3988786B1 (en) | Compressor | |
| JP2001003867A (en) | Horizontal type compressor | |
| CN110552886A (en) | Compressor with a compressor housing having a plurality of compressor blades | |
| CN113260786B (en) | Compressor | |
| WO2016103321A1 (en) | Compressor and refrigeration cycle device with same | |
| JP2001304152A (en) | Scroll compressor | |
| JP2003336578A (en) | Hermetic compressor |