JP2008002417A - Hermetic compressor - Google Patents

Hermetic compressor Download PDF

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JP2008002417A
JP2008002417A JP2006174825A JP2006174825A JP2008002417A JP 2008002417 A JP2008002417 A JP 2008002417A JP 2006174825 A JP2006174825 A JP 2006174825A JP 2006174825 A JP2006174825 A JP 2006174825A JP 2008002417 A JP2008002417 A JP 2008002417A
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oil
compression mechanism
rotor
stator
gas
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Yushi Hashimoto
雄史 橋本
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Panasonic Holdings Corp
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Matsushita Electric Industrial Co Ltd
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Priority to JP2006174825A priority Critical patent/JP2008002417A/en
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a hermetic compressor capable of delivering gas of sufficiently separating gad and liquid, by substantially restricting and treating a refrigerant and oil. <P>SOLUTION: This hermetic compressor further promotes separation of gas and liquid, by arranging a mesh-like oil separator 3b1 on the outlet side of a rotor side surface, by centrifuging the gas and liquid by offering to forced turning by rotation of a rotor 3b by being introduced to a rotor lower chamber by passing through a rotor passage from a rotor upper chamber, by substantially restraining the gas delivered in a sealed vessel 1 from a compression mechanism and the oil after being supplied to the compression mechanism and its bearing part. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

本発明は冷凍空調分野等に使用される密閉型圧縮機に関するものである。   The present invention relates to a hermetic compressor used in the field of refrigeration and air conditioning.

従来、この種の密閉型圧縮機は、本実施の形態に係る密閉型のスクロール圧縮機を示す図1を参照して、密閉容器1内に圧縮機構2、この圧縮機構2の下方に設けた圧縮機構2を駆動するための電動機3と、この電動機3の回転力を圧縮機構2に伝達するためのクランク軸4とを備え、密閉容器1内の下部に設けたオイル溜め5のオイル6をクランク軸4を通じてクランク軸4の軸受部66や圧縮機構2の摺動部に供給する給油機構7とを備えている。   Conventionally, this type of hermetic compressor is provided with a compression mechanism 2 in a hermetic container 1 below the compression mechanism 2 with reference to FIG. 1 showing the hermetic scroll compressor according to the present embodiment. An electric motor 3 for driving the compression mechanism 2 and a crankshaft 4 for transmitting the rotational force of the electric motor 3 to the compression mechanism 2 are provided, and an oil 6 in an oil sump 5 provided at a lower portion in the sealed container 1 is supplied. An oil supply mechanism 7 that supplies the bearing portion 66 of the crankshaft 4 and the sliding portion of the compression mechanism 2 through the crankshaft 4 is provided.

これによって、オイル6は給油機構7によって重力に逆らって軸受部66や圧縮機構2の摺動部に強制給油されて、円滑な動作を確保しながら、圧縮機構2で圧縮した冷媒ガスを密閉容器1内の電動機3の部分を通して電動機3を冷却した後密閉容器1外に吐出するようにしており、前記軸受部66や圧縮機構2の摺動部に供給した後のオイルが供給圧や重力によって下方に移動しオイル溜め20に自然回収されるようにすることができる。しかし、冷媒ガスは常時オイルと接触してこれを随伴させ、密閉容器から冷凍サイクルに供給される際にオイルを持ち込んでしまい、冷凍サイクル中での配管圧力損失や凝縮器や蒸発器などの熱交換器での熱交換効率の低下をもたらす問題がある。   As a result, the oil 6 is forcibly supplied to the bearing 66 and the sliding portion of the compression mechanism 2 against the gravity by the oil supply mechanism 7, and the refrigerant gas compressed by the compression mechanism 2 is sealed in a sealed container while ensuring smooth operation. The electric motor 3 is cooled through the portion of the electric motor 3 in 1 and then discharged to the outside of the sealed container 1, and the oil after being supplied to the sliding portion of the bearing 66 and the compression mechanism 2 is caused by supply pressure and gravity. It can move downward and be naturally recovered in the oil sump 20. However, the refrigerant gas always comes in contact with oil and entrains it, bringing in oil when it is supplied from the sealed container to the refrigeration cycle, and pipe pressure loss in the refrigeration cycle and heat from condensers, evaporators, etc. There is a problem that causes a reduction in heat exchange efficiency in the exchanger.

これを解消するのに従来、圧縮機構から密閉容器内に吐出した冷媒ガスが電動機を通ってそれを冷却しながら密閉容器外に吐出されるまでの冷媒ガスの通路を、オイルの衝突分離や遠心分離が繰り返し生じるように設計して、密閉容器外に吐出される冷媒ガスにオイルが随伴しないように工夫したり、軸受部や圧縮機構から排出されたオイルは圧縮機構からの吐出冷媒と合流した後電動機の回転子の中を通過し下部で遠心分離させることにより滴下させた後伝い落ちにより下部のオイル溜めに回収されるようにする一方、分離された冷媒ガスは固定子と密閉容器との間の通路を上昇して密閉容器外に吐出する整然とした冷媒の流れを作って前記滴下し伝い落ちるオイルを随伴させにくくするにようにしている(例えば、特許文献1参照)。
特開平7−189963号公報
In order to solve this problem, conventionally, the refrigerant gas discharged from the compression mechanism into the sealed container passes through the electric motor until it is discharged to the outside of the sealed container while cooling it. Designed so that separation occurs repeatedly so that the oil does not accompany the refrigerant gas discharged outside the sealed container, or the oil discharged from the bearing and compression mechanism merges with the refrigerant discharged from the compression mechanism After passing through the rotor of the rear motor and dropping at the lower part, it is collected in the oil sump at the lower part by passing down, while the separated refrigerant gas flows between the stator and the sealed container. An orderly refrigerant flow that is discharged to the outside of the hermetic container is created by raising the passage between them so as to make it difficult to accompany the oil that drops and propagates (see, for example, Patent Document 1).
JP-A-7-189963

しかし、従来のどの方式も満足な気液分離はできていない。冷媒ガスの流れによる衝突分離や遠心分離を図る従来の方式は、圧縮機構や電動機の固定子に設ける冷媒通路の設け方によって冷媒ガスの流れを規制して各部との衝突や回転子やバランスウエイトの回転を利用した旋回流が生じるようにするものであるが、冷媒ガスやオイルの流れを拘束し切れず衝突や旋回が不十分であったり、冷媒がその流路や流れの乱れによってオイルと再三接触して随伴させやすかったりして、密閉容器外に吐出する冷媒ガスにオイルが混入することを防止し切れていない。   However, none of the conventional methods has achieved satisfactory gas-liquid separation. The conventional method of performing collision separation and centrifugal separation by the flow of refrigerant gas regulates the flow of refrigerant gas by providing a refrigerant passage provided in the compression mechanism or the stator of the electric motor, and collides with each part, rotor and balance weight. However, the flow of refrigerant gas and oil cannot be constrained and collision and swirl are insufficient. It is not easy to prevent the oil from being mixed into the refrigerant gas discharged out of the hermetic container due to repeated contact and easy accompaniment.

また、上記公報に開示のものは、軸受部や圧縮機構から排出されたオイルは圧縮機構からの吐出冷媒と合流した後電動機の回転子の中を通過し下部で遠心分離させることにより滴下させた後伝い落ちにより下部のオイル溜めに回収されるようにする一方、分離された冷媒ガスは固定子と密閉容器との間の通路を上昇して密閉容器外に吐出する整然とした冷媒の流れを作って前記滴下し伝い落ちるオイルを随伴させにくくするにようにしている、しかしながら、オイルが冷媒ガスにより分散されてその流れに乗じてしまい随伴されるの
で、やはり、密閉容器外に吐出する冷媒ガスにオイルが混入することを防止し切れていない。
In addition, in the above-mentioned publication, the oil discharged from the bearing portion and the compression mechanism is dropped by merging with the refrigerant discharged from the compression mechanism and then passing through the rotor of the electric motor and centrifuging at the lower part. The separated refrigerant gas rises up the passage between the stator and the airtight container and creates an orderly refrigerant flow that is discharged out of the airtight container. However, since the oil is dispersed by the refrigerant gas and entrained by the flow, the refrigerant gas discharged to the outside of the sealed container is also added. The oil is not prevented from entering.

本発明の目的は、冷媒およびオイルをほぼ拘束して取扱って、十分に気液分離されたガスを吐出することができる密閉型圧縮機を提供することにある。   An object of the present invention is to provide a hermetic compressor capable of handling gas and liquid separated sufficiently by handling refrigerant and oil in a substantially restrained manner.

本発明の密閉型圧縮機は、密閉容器内に圧縮機構と、この圧縮機構の下方に設けた圧縮機構を駆動するための電動機と、この電動機の回転力を圧縮機構部に伝達するためのクランク軸と、密閉容器内の下部に設けたオイル溜めのオイルをクランク軸を通じてクランク軸の軸受部や圧縮機構摺動部に供給する給油機構とを備え、圧縮機構から密閉容器内へ吐出されるガスおよび圧縮機構およびその軸受部への供給後のオイルをほぼ拘束して回転子上部室から回転子通路に通して回転子下部室に導くことにより回転子の回転による強制旋回に供して気液の遠心分離を行ない、さらに側面の出口側にメッシュ状のオイルセパレータを配備することにより気液の分離をさらに促進し、液化したオイルを固定子のコイルエンドに付着して伝い落ち下部のオイル溜めへ滴下させる、一方オイルと分離された冷媒は電動機下部室から固定子または固定子と密閉容器との間の固定子通路に通して前記拘束域外回りの固定子上部室に導き、密閉容器の固定子上部室の位置以上の部分から密閉容器外に吐出させて、オイルと気液分離した冷媒ガスを吐出することを特徴としている。   The hermetic compressor of the present invention includes a compression mechanism in a hermetic container, an electric motor for driving the compression mechanism provided below the compression mechanism, and a crank for transmitting the rotational force of the electric motor to the compression mechanism unit. A gas discharged from the compression mechanism into the sealed container is provided with a shaft and an oil supply mechanism that supplies oil in an oil reservoir provided in a lower portion of the sealed container to the bearing portion of the crankshaft and the sliding portion of the compression mechanism through the crankshaft. In addition, the oil after being supplied to the compression mechanism and its bearing portion is almost restrained and guided from the rotor upper chamber through the rotor passage to the rotor lower chamber to be subjected to forced swirling by the rotation of the rotor, thereby Centrifugation is performed and a mesh-like oil separator is further provided on the outlet side of the side to further promote gas-liquid separation. The liquefied oil adheres to the coil end of the stator and is transferred to On the other hand, the refrigerant, which is dropped from the oil reservoir and separated from the oil, passes through the stator passage between the stator or the stator and the hermetic container from the lower chamber of the motor and leads to the stator upper chamber outside the restraint area, and the hermetic container. This is characterized in that the refrigerant gas separated from the oil and gas-liquid is discharged from the portion above the position of the stator upper chamber to the outside of the sealed container.

本発明によれば、上記の説明で明らかなように、圧縮機構からの吐出ガスおよびそれに乗じて随伴している圧縮機構およびその軸受部に供給した後のオイルをほぼ拘束して取扱い、回転子通路を通すことで回転子の回転による強い遠心分離に供して効率のよい遠心分離を行って後オイルセパレータを通過して、固定子のコイルエンド部に当てることによりオイルを捕捉しオイル溜りへ滴下させることにより、十分に気液分離したガスを密閉容器外に吐出し供給することができる。   According to the present invention, as apparent from the above description, the discharge gas from the compression mechanism, the compression mechanism that accompanies it, and the oil that has been supplied to the bearing portion thereof are substantially restrained and handled, and the rotor By passing through the passage, it is subjected to strong centrifugal separation due to the rotation of the rotor, performing efficient centrifugation, and then passing through the oil separator and catching the oil by dropping on the coil end of the stator and dropping it into the oil reservoir By doing so, gas sufficiently liquid-liquid separated can be discharged and supplied out of the sealed container.

本発明の回転子下方部にメッシュ状のオイルセパレータを配備することにより気液の分離を促進することが可能になりシステムに排出される油を抑制することによりシステム効率を上げることが可能となる。   By disposing a mesh-like oil separator in the lower part of the rotor of the present invention, it becomes possible to promote gas-liquid separation, and it is possible to increase system efficiency by suppressing oil discharged to the system. .

以下、本発明における実施の形態に係る密閉型圧縮機およびその気液分離吐出方法について図を参照しながら説明し、本発明の理解に供する。   Hereinafter, a hermetic compressor according to an embodiment of the present invention and a gas-liquid separation and discharge method thereof will be described with reference to the drawings for understanding of the present invention.

本実施の形態は縦型でスクロール式の圧縮機構を内蔵した冷凍サイクル用の密閉型圧縮機の場合の一例であり、圧縮対象は冷媒ガスである。しかし、本発明はこれに限られることはなく、ロータリ式の圧縮機構など各種の圧縮機構をそれを駆動する電動機とともに密閉容器内に内蔵したガス一般を対象として圧縮し、圧縮機構が密閉容器内を上下に仕切り、その下部に電動機を収容する密閉型圧縮機であればその全般に適用して有効であり、本発明の範囲に属する。   This embodiment is an example of a case of a hermetic compressor for a refrigeration cycle incorporating a vertical scroll-type compression mechanism, and a compression target is a refrigerant gas. However, the present invention is not limited to this, and various compression mechanisms such as a rotary compression mechanism are compressed with respect to general gas contained in a sealed container together with an electric motor that drives the compression mechanism. A hermetic compressor that divides the upper and lower parts and accommodates an electric motor in the lower part is effective when applied to all of them and belongs to the scope of the present invention.

(実施の形態1)
本実施の形態の密閉型圧縮機は図1に示すように、密閉容器1内に溶接や焼き嵌めなどして固定したクランク軸4の主軸受部材11と、この主軸受部材11上にボルト止めした固定スクロール12との間に、固定スクロール12と噛み合う旋回スクロール13を挟み込んでスクロール式の圧縮機構2を構成し、旋回スクロール13と主軸受部材11との間に旋回スクロール13の自転を防止して円軌道運動するように案内するオルダムリングなどによる自転規制機構14を設けて、クランク軸4の上端にある主軸部4aにて旋回スク
ロール13を偏心駆動することにより旋回スクロール13を円軌道運動させ、これにより固定スクロール12と旋回スクロール13との間に形成している圧縮室15が外周側から中央部に移動しながら小さくなるのを利用して、密閉容器1外に通じた吸入パイプ16および固定スクロール12の外周部の吸入口17から冷媒ガスを吸入して圧縮していき所定圧以上になった冷媒ガスは固定スクロール12の中央部の吐出口18からリード弁19を押し開いて密閉容器1内に吐出させることを繰り返す。
(Embodiment 1)
As shown in FIG. 1, the hermetic compressor according to the present embodiment includes a main bearing member 11 of a crankshaft 4 fixed by welding or shrink fitting in the hermetic container 1, and bolts on the main bearing member 11. The scroll type compression mechanism 2 is configured by sandwiching the orbiting scroll 13 meshing with the fixed scroll 12 between the fixed scroll 12 and the rotation of the orbiting scroll 13 between the orbiting scroll 13 and the main bearing member 11. A rotation restricting mechanism 14 such as an Oldham ring that guides the circular scroll to move is provided, and the orbiting scroll 13 is eccentrically driven by the main shaft portion 4a at the upper end of the crankshaft 4, thereby causing the orbiting scroll 13 to move circularly. As a result, the compression chamber 15 formed between the fixed scroll 12 and the orbiting scroll 13 becomes smaller while moving from the outer peripheral side to the center portion. The refrigerant gas that has become a predetermined pressure or higher as the refrigerant gas is sucked and compressed through the suction pipe 16 communicating with the outside of the sealed container 1 and the suction port 17 on the outer peripheral portion of the fixed scroll 12 is fixed to the fixed scroll 12. The reed valve 19 is pushed open from the discharge port 18 at the center of the container and discharged into the sealed container 1 repeatedly.

クランク軸4の下端は密閉容器1の下端部のオイル溜め20に達して、密閉容器1内に溶接や焼き嵌めして固定された副軸受部材21により軸受され、安定に回転することができる。電動機3は主軸受部材11と副軸受部材21との間に位置して、密閉容器1に溶接や焼き嵌めなどして固定された固定子3aと、クランク軸4の途中の外まわりに一体に結合された回転子3bとで構成され、回転子3bの上下端面の外周部分にはピン22により止め付けられたバランスウエイト23、24が設けられ、これにより回転子3bおよびクランク軸4が安定して回転し、旋回スクロール13を安定して円軌道運動させることができる。   The lower end of the crankshaft 4 reaches the oil sump 20 at the lower end of the sealed container 1 and is supported by a secondary bearing member 21 fixed by welding or shrink fitting in the sealed container 1 and can rotate stably. The electric motor 3 is located between the main bearing member 11 and the sub-bearing member 21, and is integrally coupled to a stator 3 a fixed to the sealed container 1 by welding or shrink fitting, and an outer periphery in the middle of the crankshaft 4. Balance weights 23 and 24 fixed by pins 22 are provided on the outer peripheral portions of the upper and lower end surfaces of the rotor 3b, so that the rotor 3b and the crankshaft 4 are stabilized. By rotating, the orbiting scroll 13 can be stably moved in a circular orbit.

給油機構7はクランク軸4の下端で駆動されるポンプ25によってオイル溜め20内のオイル6をクランク軸4を通縦しているオイル供給穴26を通じて圧縮機構2の各部の軸受部66や圧縮機構2の各摺動部に供給する。供給後のオイル6は供給圧や重力によって逃げ場を求めるようにして軸受部66を通じ主軸受部材11の下に流出して滴下し、最終的にオイル溜め20に回収される。   The oil supply mechanism 7 is driven by a pump 25 driven at the lower end of the crankshaft 4, and the oil 6 in the oil reservoir 20 is passed through the oil supply hole 26 passing through the crankshaft 4 and the bearing portions 66 and the compression mechanisms of the respective parts of the compression mechanism 2. 2 is supplied to each sliding part. The supplied oil 6 flows out and drops below the main bearing member 11 through the bearing portion 66 so as to obtain a clearance by supply pressure or gravity, and is finally collected in the oil sump 20.

さらに圧縮機構2から吐出される冷媒ガス27が、圧縮機構2の上部の容器内吐出室31、この容器内吐出室31と圧縮機構2の下部を連通させる圧縮機構連通路32、この圧縮機構連通路32から回転子上部室33に続く連絡路34、回転子上部室33と回転子下部室35を連通させるように回転子3bに設けた回転子通路36、回転子下部室35、を順次経て電動機3の下に至り、さらに固定子3aの下部と上部とを連通させるように固定子3aまたは固定子3aと密閉容器1との間に設けられた固定子通路37を通って前記連絡路34の外まわりの固定子上部室38に抜けた後、密閉容器1の固定子上部室38の位置以上の部分に設けられた外部吐出パイプ39を通って密閉容器1外に吐出されるようにする容器内ガス通路Aを設けてある。   Further, the refrigerant gas 27 discharged from the compression mechanism 2 includes an in-container discharge chamber 31 in the upper part of the compression mechanism 2, a compression mechanism communication path 32 that connects the in-container discharge chamber 31 and the lower part of the compression mechanism 2, and the compression mechanism communication. The passage 34 continues from the passage 32 to the rotor upper chamber 33, the rotor passage 36 provided in the rotor 3 b so as to communicate the rotor upper chamber 33 and the rotor lower chamber 35, and the rotor lower chamber 35. The communication path 34 passes through the stator 3a or the stator passage 37 provided between the stator 3a and the hermetic container 1 so as to reach the lower side of the motor 3 and further communicate the lower and upper portions of the stator 3a. A container that is discharged to the outside of the hermetic container 1 through an external discharge pipe 39 provided in a portion of the hermetic container 1 beyond the position of the stator upper chamber 38 after being discharged to the outer stator upper chamber 38. Inner gas passage A is provided That.

このような容器内ガス通路Aの容器内吐出室31と、圧縮機構連通路32とは、圧縮機構2およびその軸受部66の外回りに位置して、圧縮機構2から吐出される冷媒ガス27を一括して圧縮機構2の下部の連絡路34に吐出させる。続いて連絡路34は吐出されてきた冷媒ガス27を回転子上部室33に導いて回転子3bおよびバランスウエイト23の回転による影響で緩く旋回する状態で回転子通路36内に進入させて下方に通りぬけ、遠心分離により外側に向かうオイル6を回転子3bの側面方向に配備されたメッシュ状のオイルセパレータ3b1を通り抜けることによりさらに冷媒ガス27とオイルに分離しそのオイルは固定子3aのコイルエンドに付着して伝い落ち下部のオイル溜め20へ滴下させる、一方オイルと分離された冷媒は電動機下部室から固定子3aまたは固定子3aと密閉容器1との間の固定子通路に通して前記拘束域外回りの固定子上部室に導き、密閉容器1の固定子上部室38、オイル6の気液分離効果を高めることが出来る。   The in-container discharge chamber 31 of the in-container gas passage A and the compression mechanism communication passage 32 are positioned outside the compression mechanism 2 and its bearing portion 66 to allow the refrigerant gas 27 discharged from the compression mechanism 2 to flow. Collective discharge is performed to the communication path 34 below the compression mechanism 2. Subsequently, the communication path 34 guides the discharged refrigerant gas 27 to the rotor upper chamber 33 and enters into the rotor passage 36 in a state where the refrigerant gas 27 turns gently due to the rotation of the rotor 3b and the balance weight 23 and moves downward. Passing through the centrifugal separation, the oil 6 going outward is passed through the mesh-like oil separator 3b1 arranged in the lateral direction of the rotor 3b to further separate into the refrigerant gas 27 and the oil, and the oil is coiled to the stator 3a. The refrigerant separated from the oil is passed through the stator 3a or the stator passage between the stator 3a and the hermetic container 1 from the lower chamber of the motor, and the restraint is performed. It leads to the stator upper chamber outside the area, and the gas-liquid separation effect of the stator upper chamber 38 and the oil 6 of the sealed container 1 can be enhanced.

以上のように、本発明にかかる密閉型圧縮機は、従来の密閉型圧縮機に対して気液分離効果をたかめることによりシステムに吐出するオイルを削減することによりシステム損失を抑制できる、密閉型圧縮機を提供することができる。   As described above, the hermetic compressor according to the present invention is a hermetic type capable of suppressing the system loss by reducing the oil discharged to the system by increasing the gas-liquid separation effect with respect to the conventional hermetic compressor. A compressor can be provided.

本発明の一実施の形態を示す密閉型圧縮機の断面図Sectional drawing of the hermetic compressor which shows one embodiment of this invention

符号の説明Explanation of symbols

1 密閉容器
2 圧縮機構
3 電動機
3a 固定子
3b 回転子
4 クランク軸
6 オイル
7 給油機構
17 吸入口
18 吐出口
20 オイル溜め
23 バランスウエイト
24 バランスウエイト
27 冷媒ガス
3b1 オイルセパレータ
31 容器内吐出室
32 圧縮機構連通路
33 回転子上部室
34 連絡路
35 回転子下部室
36 回転子通路
37 固定子通路
38 固定子上部室
39 外部吐出パイプ
41 電動機下部室
42 圧縮機構上部室
43 圧縮機構上昇連通路
DESCRIPTION OF SYMBOLS 1 Airtight container 2 Compression mechanism 3 Electric motor 3a Stator 3b Rotor 4 Crankshaft 6 Oil 7 Oil supply mechanism 17 Suction port 18 Discharge port 20 Oil reservoir 23 Balance weight 24 Balance weight
27 Refrigerant gas 3b1 Oil separator 31 Discharge chamber in container 32 Compression mechanism communication path 33 Rotor upper chamber 34 Communication path 35 Rotor lower chamber 36 Rotor passage 37 Stator passage 38 Stator upper chamber 39 External discharge pipe 41 Motor lower chamber 42 Compression mechanism upper chamber 43 Compression mechanism ascending communication path

Claims (1)

密閉容器内に圧縮機構と、この圧縮機構の下方に設けた圧縮機構を駆動するための電動機と、この電動機の回転力を圧縮機構部に伝達するためのクランク軸と、密閉容器内の下部に設けたオイル溜めのオイルをクランク軸を通じてクランク軸の軸受部や圧縮機構摺動部に供給する給油機構とを備えた密閉型圧縮機であって、圧縮機構から密閉容器内へ吐出されるガスおよび圧縮機構およびその軸受部への供給後のオイルをほぼ拘束して回転子上部室から回転子通路に通して回転子下部室に導くことにより回転子の回転による強制旋回に供して気液の遠心分離を行ない、さらに、回転子下部室の側方から出るところにメッシュ状の網目状のオイルセパレータを配備することにより気液の分離を行い、液化されたオイルを固定子のコイルエンドに付着して伝い落ち下部のオイル溜めへ滴下させる一方オイルと分離された冷媒は電動機下部室から固定子または固定子と密閉容器との間の固定子通路に通して拘束域外回りの固定子上部室に導き、密閉容器の固定子上部室の位置以上の部分から密閉容器外に吐出させて、オイルと気液分離した冷媒ガスを吐出することを特徴とする密閉型圧縮機。 A compression mechanism in the sealed container, an electric motor for driving the compression mechanism provided below the compression mechanism, a crankshaft for transmitting the rotational force of the electric motor to the compression mechanism, and a lower part in the sealed container A hermetic compressor having an oil supply mechanism that supplies oil in a provided oil reservoir to a bearing portion of the crankshaft and a compression mechanism sliding portion through a crankshaft, and a gas discharged from the compression mechanism into a sealed container and The oil after being supplied to the compression mechanism and its bearing is almost restrained and guided to the rotor lower chamber through the rotor passage from the rotor upper chamber, and subjected to forced rotation by the rotation of the rotor. Separation is performed, and gas-liquid separation is performed by deploying a mesh-like mesh-like oil separator at the side of the rotor lower chamber, and the liquefied oil is fed to the stator coil end. The oil is separated from the oil lower chamber while passing through the stator passage between the stator or the stator and the hermetic container, and the stator upper chamber outside the restraint area. A hermetic compressor that discharges refrigerant gas separated from oil and gas-liquid by discharging it to the outside of the hermetic container from a portion higher than the position of the stator upper chamber of the hermetic container.
JP2006174825A 2006-06-26 2006-06-26 Hermetic compressor Pending JP2008002417A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2006174825A JP2008002417A (en) 2006-06-26 2006-06-26 Hermetic compressor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2006174825A JP2008002417A (en) 2006-06-26 2006-06-26 Hermetic compressor

Publications (1)

Publication Number Publication Date
JP2008002417A true JP2008002417A (en) 2008-01-10

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
JP2006174825A Pending JP2008002417A (en) 2006-06-26 2006-06-26 Hermetic compressor

Country Status (1)

Country Link
JP (1) JP2008002417A (en)

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