JPH09151874A - Refrigerant compressor - Google Patents
Refrigerant compressorInfo
- Publication number
- JPH09151874A JPH09151874A JP33586095A JP33586095A JPH09151874A JP H09151874 A JPH09151874 A JP H09151874A JP 33586095 A JP33586095 A JP 33586095A JP 33586095 A JP33586095 A JP 33586095A JP H09151874 A JPH09151874 A JP H09151874A
- Authority
- JP
- Japan
- Prior art keywords
- oil
- groove
- refrigerant
- sealing plug
- closed container
- 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
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
- Lubricants (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】この発明は冷媒に１，１，
１，２−テトラフルオロエタン（以下Ｒ１３４ａとい
う）等の塩素を含まない弗化炭化水素系冷媒或いはその
混合冷媒を用いる冷媒圧縮機で、ポリオールエステル系
油またはポリオールエーテル油を基油とした冷凍機油を
使用した冷媒圧縮機に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention
Refrigerant compressor using a fluorocarbon-based refrigerant that does not contain chlorine such as 1,2-tetrafluoroethane (hereinafter referred to as R134a) or a mixed refrigerant thereof, which is a refrigerating machine oil using a polyol ester-based oil or a polyol ether oil as a base oil. The invention relates to a refrigerant compressor.
【０００２】[0002]
【従来の技術】冷蔵庫、自動販売機及びショーケース用
の圧縮機は従来冷媒としてジクロロジフルオロメタン
（以下Ｒ１２という）を多く使用していた。このＲ１２
はオゾン層の破壊の問題からフロン規制の対象となって
いる。そして、このＲ１２の代替冷媒としてＲ１３４ａ
を代表とする塩素を含まない弗化炭化水素系冷媒（ＨＦ
Ｃ，ＦＣ）が冷凍機用として検討されている（例えば、
特開平１−２７１４９１号公報参照）。2. Description of the Related Art Compressors for refrigerators, vending machines and showcases have conventionally used a large amount of dichlorodifluoromethane (hereinafter referred to as R12) as a refrigerant. This R12
Is subject to CFC regulations because of the problem of depletion of the ozone layer. Then, R134a is used as a substitute refrigerant for R12.
Fluorohydrocarbon-based refrigerants containing no chlorine (HF)
C, FC) are being studied for refrigerators (for example,
See Japanese Patent Application Laid-Open No. 1-271491).
【０００３】[0003]
【発明が解決しようとする課題】しかしながら、冷媒Ｒ
１３４ａは現在使われている鉱物油やアルキルベンゼン
油等の冷凍機油との相溶性が悪く、圧縮機への油の戻り
の悪化や寝込み起動時の分離冷媒の吸い上げなどから圧
縮機の潤滑不良に至る問題があった。However, the refrigerant R
134a has poor compatibility with currently used refrigerating machine oils such as mineral oil and alkylbenzene oil, leading to poor lubrication of the compressor due to poor return of oil to the compressor, suction of separated refrigerant at the time of stagnation startup, etc. There was a problem.
【０００４】このため、本発明者らは冷媒Ｒ１３４ａと
相溶性のある冷凍機油としてポリオールエステル系油を
検討した。しかし、このポリオールエステル系油は冷媒
圧縮機に使用する場合に、熱により分解して生成する脂
肪酸で摺動部材に腐食を起こさせ、摩耗を生じさせるこ
とが知られている。[0004] Therefore, the present inventors have studied a polyol ester-based oil as a refrigerating machine oil compatible with the refrigerant R134a. However, it is known that when this polyol ester-based oil is used in a refrigerant compressor, the sliding member is corroded by fatty acids generated by being decomposed by heat and causes abrasion.
【０００５】そして、本発明者らは冷媒としてＲ１３４
ａと冷凍機油としてポリオールエステル系油とを組合わ
せて冷媒圧縮機に使用すべく研究を重ねた結果、上記問
題の他に、ポリオールエステル系油は、水分の影響によ
り加水分解を起こして全酸化が上昇し、金属石鹸が生成
されてスラッジとなり、冷凍サイクルに悪影響を与えた
り、酸素や塩素の影響により、分解、酸化劣化、重合反
応が起こり、金属石鹸や高分子スラッジが生成されて冷
凍サイクルに悪影響を与えることをつきとめた。[0005] Then, the present inventors used R134 as a refrigerant.
As a result of repeated studies to use a in combination with a polyol ester-based oil as a refrigerating machine oil in a refrigerant compressor, the polyol ester-based oil undergoes hydrolysis due to the influence of moisture to cause total oxidation in addition to the above problems. Temperature rises, metal soap is generated and becomes sludge, which adversely affects the refrigeration cycle, and decomposition and oxidative deterioration and polymerization reactions occur due to the influence of oxygen and chlorine, and metal soap and polymer sludge are generated and the refrigeration cycle Was found to have an adverse effect on.
【０００６】一方、冷媒圧縮機の密閉容器には、冷媒の
吸入管や吐出管やチャージ管等のパイプが接続されてお
り、これらパイプの開口には、ゴム材料からなる封止栓
が圧入されている。On the other hand, pipes such as a refrigerant suction pipe, a discharge pipe and a charge pipe are connected to the closed container of the refrigerant compressor, and a sealing plug made of a rubber material is press-fitted into the openings of these pipes. ing.
【０００７】しかし、上記ゴム材料からなる封止栓は、
その材料特性から水分透過性が大きく、冷媒圧縮機を長
期に渡って保管しておくと１ケ月に７０ｐｐｍ程度の水
分が増加し、上述した問題を助長してしまうという問題
があった。この問題は封入オイルをポリオールエーテル
系油とした場合でも同様である。However, the sealing plug made of the above rubber material is
Due to the material characteristics, the water permeability is large, and when the refrigerant compressor is stored for a long period of time, the water content increases by about 70 ppm per month, which causes the problem described above. This problem is the same even when the encapsulated oil is a polyol ether type oil.
【０００８】尚、この問題に対処する方法として、図１
８乃至図２１に示すように、パイプ１００に圧入される
ゴム製の封止栓１０１の中央に深さｌの溝１０２を形成
し、この溝１０２に長さＬのピン１０３を圧入してシー
ル性を高める方法もあるが、この場合でも経時的な変化
により溝１０２の底部空間１０４に残留した空気が封止
栓１０１の微小な孔を通って圧縮機の内部に浸入してし
まい、依然として部品の酸化や油の加水分解による劣化
が生じてしまい十分な効果が得られない。As a method for dealing with this problem, FIG.
As shown in FIGS. 8 to 21, a groove 102 having a depth 1 is formed in the center of a rubber sealing plug 101 to be press-fitted into a pipe 100, and a pin 103 having a length L is press-fitted into the groove 102 to seal. However, even in this case, the air remaining in the bottom space 104 of the groove 102 intrudes into the inside of the compressor through the minute holes of the sealing plug 101 due to a change with time, and the component is still present. Sufficient effects cannot be obtained because deterioration occurs due to the oxidation of oil and the hydrolysis of oil.
【０００９】更に、図２２乃至図２５に示すように、パ
イプ１００に圧入されるゴム製の封止栓１０１の中央に
深さｌの溝１０２を形成し、この溝１０２に長さＬのタ
ッピンネジ１０８をねじ込むでシール性を高める方法も
あるが、この場合でも上述の場合と同様に経時的な変化
により溝１０２の底部空間１０４に残留した空気が封止
栓１０１の微小な孔を通って圧縮機の内部に浸入してし
まうという問題があった。Further, as shown in FIGS. 22 to 25, a groove 102 having a depth of 1 is formed in the center of a rubber sealing plug 101 which is press-fitted into a pipe 100, and a tapping screw having a length L is formed in the groove 102. There is also a method of screwing 108 to enhance the sealing property, but even in this case, the air remaining in the bottom space 104 of the groove 102 is compressed through the minute holes of the sealing plug 101 due to the change over time as in the case described above. There was a problem that it would get inside the machine.
【００１０】この発明は上記の問題を解決するもので、
塩素を含まない弗化炭化水素系冷媒（例えばＲ１３４
ａ、Ｒ１２５、Ｒ３２単体又はその混合冷媒）と、それ
との相溶性のあるポリオールエステル系油又はポリオー
ルエーテル系油等の極性の高い油とを冷凍機油として使
用したときの上記の問題を解決し、長期保存しても上記
油の加水分解を増加させない冷媒圧縮機の封止栓装置を
提供することを目的とする。The present invention solves the above problems,
Chlorine-free fluorinated hydrocarbon-based refrigerant (for example, R134
a, R125, R32 simple substance or a mixed refrigerant thereof) and a highly polar oil such as a polyol ester oil or a polyol ether oil having compatibility therewith, and solving the above-mentioned problems when used as a refrigerating machine oil, An object of the present invention is to provide a sealing stopper device for a refrigerant compressor, which does not increase the hydrolysis of the oil even after long-term storage.
【００１１】[0011]
【課題を解決するための手段】本発明は、請求項１に記
載の如く、塩素を含まない弗化炭化水素系冷媒と、ポリ
オールエステル系油またはポリオールエーテル系油等の
極性の高い油を基油とした冷凍機油とを密閉容器内に封
入すると共に、この密閉容器に接続されたパイプに封止
栓を装着した冷媒圧縮機において、前記封止栓は、その
軸心部に形成された溝と、この溝内に注入された接着剤
又は乾燥剤等の充填剤と、この溝内に圧入されたピン又
はネジ等の棒状体とで構成したものである。As described in claim 1, the present invention is based on a chlorine-free fluorohydrocarbon refrigerant and a highly polar oil such as a polyol ester oil or a polyol ether oil. In a refrigerant compressor in which a refrigerating machine oil as oil is enclosed in a closed container, and a sealing plug is attached to a pipe connected to the closed container, the sealing plug is a groove formed in its axial center portion. And a filler such as an adhesive or a desiccant injected into the groove, and a rod-shaped body such as a pin or a screw press-fit into the groove.
【００１２】また、請求項２に記載の如く、塩素を含ま
ない弗化炭化水素系冷媒と、ポリオールエステル系油ま
たはポリオールエーテル系油等の極性の高い油を基油と
した冷凍機油とを密閉容器内に封入すると共に、この密
閉容器に接続されたパイプに封止栓を装着した冷媒圧縮
機において、前記封止栓は、その軸心部に形成された溝
と、この溝内に注入された接着剤又は乾燥剤等の充填剤
と、この溝内に圧入されたタッピンネジとで構成され、
このタッピンネジのネジ長は前記溝の深さより長く形成
されている構成としたものである。Further, as described in claim 2, a chlorine-free fluorohydrocarbon refrigerant and a refrigerating machine oil containing a highly polar oil such as a polyol ester oil or a polyol ether oil as a base oil are hermetically sealed. In a refrigerant compressor which is sealed in a container and has a sealing plug attached to a pipe connected to the closed container, the sealing plug is injected into the groove formed in the axial center portion and the groove. And a filler such as an adhesive or a desiccant, and a tapping screw press-fit into the groove,
The tapping screw has a length that is longer than the depth of the groove.
【００１３】更に、請求項３に記載の如く、塩素を含ま
ない弗化炭化水素系冷媒と、ポリオールエステル系油ま
たはポリオールエーテル系油等の極性の高い油を基油と
した冷凍機油とを密閉容器内に封入すると共に、この密
閉容器に接続されたパイプに封止栓を装着した冷媒圧縮
機において、前記封止栓は、その軸心部に形成された貫
通溝と、この貫通溝内に注入された接着剤又は乾燥剤等
の充填剤と、この貫通溝内に圧入されたピンとで構成さ
れ、このピンは前記貫通溝の長さより長く形成されてい
る構成としたものである。Further, as described in claim 3, a chlorine-free fluorohydrocarbon refrigerant and a refrigerating machine oil having a highly polar oil such as a polyol ester oil or a polyol ether oil as a base oil are hermetically sealed. In a refrigerant compressor that is sealed in a container and has a sealing plug attached to a pipe connected to the closed container, the sealing plug has a through groove formed in an axial center portion thereof, and a through groove formed in the through groove. It is composed of a filled filler such as an adhesive or a desiccant, and a pin press-fitted into the through groove, and the pin is formed to be longer than the length of the through groove.
【００１４】[0014]
【発明の実施の形態】以下この発明を図に示す実施例に
基いて説明する。図１は回転型圧縮機の縦断面図であ
り、図２乃至図５は第一の実施例である。１は密閉容器
で、この容器内には上側に電動要素２が、下側にこの電
動要素によって駆動される回転圧縮要素３が夫々収納さ
れている。電動要素２は有機系材料で絶縁された巻線４
を有する固定子５とこの固定子の内側に設けられた回転
子６とで構成されている。回転圧縮要素３はシリンダ７
と、回転軸８の偏心部９によってシリンダ７の内壁に沿
って回転させるローラ１０と、このローラの周面に圧接
されてシリンダ７内を吸込側と吐出側とに区画するよう
にバネ１１で押圧されるベーン１２と、シリンダ７の開
口を封じるとともに、回転軸８を軸支する上部軸受１３
及び下部軸受１４とで構成されている。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to an embodiment shown in the drawings. FIG. 1 is a vertical sectional view of a rotary compressor, and FIGS. 2 to 5 show a first embodiment. Reference numeral 1 denotes a closed container in which an electric element 2 is housed on the upper side and a rotary compression element 3 driven by the electric element is housed on the lower side. The electric element 2 is a winding 4 which is insulated with an organic material.
And a rotor 6 provided inside the stator. The rotary compression element 3 is a cylinder 7
A roller 10 that rotates along the inner wall of the cylinder 7 by the eccentric portion 9 of the rotary shaft 8; The pressed vane 12 and the upper bearing 13 that seals the opening of the cylinder 7 and supports the rotating shaft 8
And a lower bearing 14.
【００１５】そして、上部軸受１３にはシリンダ７の吐
出側と連通する吐出孔１５が設けられている。また、上
部軸受１３には吐出孔１５を開閉する吐出弁１６と、こ
の吐出弁を覆うように吐出マフラ１７とが取付けられて
いる。ローラ１０とベーン１２とは鉄系材料で形成され
ている。The upper bearing 13 is provided with a discharge hole 15 which communicates with the discharge side of the cylinder 7. Further, a discharge valve 16 that opens and closes the discharge hole 15 and a discharge muffler 17 that covers the discharge valve are attached to the upper bearing 13. The roller 10 and the vane 12 are made of an iron-based material.
【００１６】密閉容器１内の底部には、トリメチロール
プロパンやペンタエリスリトール等の３価以上のポリオ
ールと、直鎖又は側鎖のアルキル系脂肪酸とを無触媒で
重合した原料からなり、流動点が−５０℃、二液分離温
度が−３０℃、全酸価が０．０１ｍｇＫＯＨ／ｇ以下
で、粘度が４０℃で３２ｃｓｔ、粘度指数が９５のポリ
オールエステル油のオイル１８が貯溜されている。The bottom of the closed vessel 1 is made of a raw material obtained by polymerizing a trivalent or higher valent polyol such as trimethylolpropane or pentaerythritol and a linear or side chain alkyl fatty acid without a catalyst, and has a pour point. Oil 18 of polyol ester oil having a temperature of -50 ° C, a two-liquid separation temperature of -30 ° C, a total acid value of 0.01 mgKOH / g or less, a viscosity of 32 cst at 40 ° C and a viscosity index of 95 is stored.
【００１７】前記回転圧縮機及びこの圧縮機が接続され
る冷凍サイクルには、塩素を含まない弗化炭化水素系冷
媒、例えばＲ１３４ａ単体、或いはＲ１３４ａとＲ３２
とＲ１２５との２種、又３種を混合した非共沸混合冷媒
が封入されている。In the rotary compressor and the refrigeration cycle to which the compressor is connected, a chlorine-free fluorohydrocarbon refrigerant, for example, R134a alone, or R134a and R32 is used.
A non-azeotropic mixed refrigerant obtained by mixing two kinds or three kinds of R125 and R125 is enclosed.
【００１８】Ｒ１３４ａは、純度が９９．９７ｗｔ％
で、塩素系冷媒の混入が５６ｐｐｍに調整される。R134a has a purity of 99.97 wt%.
Then, the mixing amount of the chlorine-based refrigerant is adjusted to 56 ppm.
【００１９】そして、オイル１８は回転圧縮要素３の摺
動部材であるローラ１０とベーン１２との摺動面を潤滑
している。The oil 18 lubricates the sliding surface between the vane 12 and the roller 10 which is a sliding member of the rotary compression element 3.
【００２０】１９は密閉容器１に取付けてシリンダ７の
吸入側に冷媒を案内する吸入管、２０は密閉容器１の上
壁に取付けられて回転圧縮要素３で圧縮されて電動要素
２を介して密閉容器１外に冷媒を吐出する吐出管であ
る。Reference numeral 19 is a suction pipe which is attached to the closed container 1 and guides the refrigerant to the suction side of the cylinder 7. Reference numeral 20 is attached to the upper wall of the closed container 1 and is compressed by the rotary compression element 3 through the electric element 2. A discharge pipe for discharging the refrigerant to the outside of the closed container 1.
【００２１】２１は前記吸入管１９及び吐出管２０の開
口に圧入により装着された封止栓である。この封止栓２
１はクロロプレンゴム材料にて形成されており、鍔部２
２と、その軸心部に形成された深さｌの溝２３と、この
溝２３内に注入された接着剤又は乾燥剤等の充填剤２４
と、この溝内に圧入された長さＬのピン２５とで構成さ
れている。ここで、ｌ＞Ｌの関係になっている。Reference numeral 21 is a sealing plug fitted into the openings of the suction pipe 19 and the discharge pipe 20 by press fitting. This sealing plug 2
1 is made of a chloroprene rubber material and has a collar portion 2
2, a groove 23 having a depth 1 formed in the axial center thereof, and a filler 24 such as an adhesive or a desiccant injected into the groove 23.
And a pin 25 having a length L and press-fitted into this groove. Here, the relationship is l> L.
【００２２】そして、この封止栓２１は、その弾性にて
吸入管１９や吐出管２０等のパイプに圧入され、パイプ
の開口を気密に封じている。The sealing plug 21 is pressed into a pipe such as the suction pipe 19 and the discharge pipe 20 by its elasticity, and hermetically seals the opening of the pipe.
【００２３】ここで、回転型圧縮機の動作を説明する
と、吸入管１９からシリンダ７内の吸込側に流入した冷
媒Ｒ１３４ａはローラ１０とベーン１２との協働で圧縮
され、吐出孔１５を通って吐出弁１６を開放して吐出マ
フラ１７内に吐出される。この吐出マフラ内の冷媒は電
動要素２を介して吐出管２０から密閉容器１外に吐出さ
れる。そして、オイル１８は回転圧縮要素３のローラ１
０やベーン１２等の摺動部材の摺動面に供給されて潤滑
を行っている。また、シリンダ７内で圧縮された冷媒が
低圧側にリークしないようにしている。The operation of the rotary compressor will now be described. The refrigerant R134a flowing into the suction side of the cylinder 7 from the suction pipe 19 is compressed by the cooperation of the roller 10 and the vane 12, and passes through the discharge hole 15. The discharge valve 16 is opened to discharge into the discharge muffler 17. The refrigerant in the discharge muffler is discharged from the discharge pipe 20 to the outside of the closed container 1 via the electric element 2. The oil 18 is the roller 1 of the rotary compression element 3.
The lubrication is carried out by being supplied to the sliding surface of a sliding member such as 0 or vane 12. Further, the refrigerant compressed in the cylinder 7 is prevented from leaking to the low pressure side.
【００２４】そして、吸入管１９及び吐出管２０に圧入
された封止栓２１は、溝２３の深さｌとピン２５の長さ
Ｌの関係をｌ＞Ｌとしており、しかも、この溝２３内に
は接着剤又は乾燥剤等の充填剤２４が充填されているた
め、溝２３の底部空間２６に空気が残留するようなこと
はなく、圧縮機を長期間保存する場合でも空気が封止栓
２１の微小な孔を通って圧縮機の内部に浸入するような
ことは殆どなくなり、部品の酸化や油の加水分解による
劣化を抑制できる。In the sealing plug 21 press-fitted into the suction pipe 19 and the discharge pipe 20, the relationship between the depth l of the groove 23 and the length L of the pin 25 is 1> L, and the groove 23 Since it is filled with a filler 24 such as an adhesive or a desiccant, the air does not remain in the bottom space 26 of the groove 23, and even when the compressor is stored for a long period of time, the air has a sealing plug. It is almost impossible to penetrate the inside of the compressor through the minute holes 21 and it is possible to suppress deterioration due to oxidation of parts and hydrolysis of oil.
【００２５】また、図６乃至図９の実施例では、封止栓
３１を、鍔部３２と、その軸心部に形成された深さｌの
溝３３と、この溝３３内に注入された接着剤又は乾燥剤
等の充填剤２４と、この溝内に圧入された長さＬのタッ
ピンネジ３５とで構成している。ここで、ｌ＞Ｌの関係
になっている。Further, in the embodiment of FIGS. 6 to 9, the sealing plug 31 is injected into the flange portion 32, the groove 33 having a depth 1 formed in the shaft center portion thereof, and the groove 33. It is composed of a filler 24 such as an adhesive or a desiccant, and a tapping screw 35 having a length L and press-fitted into the groove. Here, the relationship is l> L.
【００２６】この場合も吸入管１９及び吐出管２０に圧
入された封止栓３１は、溝３３の深さｌとタッピンネジ
３５の長さＬの関係をｌ＞Ｌとしており、しかも、この
溝３３内には接着剤又は乾燥剤等の充填剤３４が充填さ
れているため、溝３３の底部空間３６に空気が残留する
ようなことはなく、圧縮機を長期間保存できる。In this case as well, the sealing plug 31 press-fitted into the suction pipe 19 and the discharge pipe 20 has a relation between the depth l of the groove 33 and the length L of the tapping screw 35 such that l> L. Since the inside is filled with a filler 34 such as an adhesive or a desiccant, air does not remain in the bottom space 36 of the groove 33, and the compressor can be stored for a long time.
【００２７】更に、図１０乃至図１３の実施例では、封
止栓４１を、鍔部４２と、その軸心部に形成された深さ
ｌの溝４３と、この溝内に圧入された長さＬのタッピン
ネジ４５とで構成している。ここで、ｌ＜Ｌの関係にな
っている。Further, in the embodiment shown in FIGS. 10 to 13, the sealing plug 41 includes a collar portion 42, a groove 43 of a depth 1 formed in the shaft center portion thereof, and a length press-fitted into the groove. And a tapping screw 45 of size L. Here, the relationship is l <L.
【００２８】この場合には吸入管１９及び吐出管２０に
圧入された封止栓４１は、溝４３の深さｌとタッピンネ
ジ４５の長さＬの関係をｌ＜Ｌとしており、タッピンネ
ジ４５は厚さｔ（ｔ＞０）の底部４４を残して封止栓４
１にねじ込まれるため、溝４３の底部空間に空気が残留
するようなことはなく、圧縮機を長期間保存できる。In this case, in the sealing plug 41 press-fitted into the suction pipe 19 and the discharge pipe 20, the relationship between the depth l of the groove 43 and the length L of the tapping screw 45 is 1 <L, and the tapping screw 45 is thick. The sealing plug 4 leaving the bottom portion 44 of t (t> 0)
Since it is screwed into No. 1, air does not remain in the bottom space of the groove 43, and the compressor can be stored for a long time.
【００２９】更に、図１４乃至図１７の実施例では、封
止栓５１を、鍔部５２と、その軸心部に形成された深さ
ｌの貫通溝５３と、この貫通溝内に圧入された長さＬの
ピン５５とで構成している。ここで、ｌ＜Ｌの関係にな
っている。Further, in the embodiment of FIGS. 14 to 17, the sealing plug 51 is press-fitted into the flange portion 52, the through groove 53 having a depth 1 formed in the axial center portion thereof, and the through groove. And a pin 55 having a length L. Here, the relationship is l <L.
【００３０】この場合には吸入管１９及び吐出管２０に
圧入された封止栓５１は、貫通溝５３の深さｌとピン５
５の長さＬの関係をｌ＜Ｌとしており、ピン５５は封止
栓５１に貫通状態でねじ込まれるため、貫通溝５３に空
気が残留するようなことはなく、圧縮機を長期間保存で
きる。In this case, the sealing plug 51 press-fitted into the suction pipe 19 and the discharge pipe 20 has a depth 1 of the through groove 53 and the pin 5
Since the length L of 5 is 1 <L, and the pin 55 is screwed into the sealing plug 51 in a penetrating state, air does not remain in the penetrating groove 53 and the compressor can be stored for a long time. .
【００３１】尚、本実施例では塩素を含まない弗化炭化
水素系冷媒としてＲ１３４ａ、オイルとしてポリオール
エステル系油を例に説明したが、これに限定されるもの
ではなく、他のＨＦＣの冷媒やそれらの混合冷媒、又は
他のエーテル油等のような極性の高い油に対しても同様
の作用効果を奏する。In this embodiment, R134a is used as an example of the fluorocarbon refrigerant containing no chlorine, and polyol ester oil is used as an oil. However, the present invention is not limited to this, and other HFC refrigerants or Similar effects can be obtained even with such mixed refrigerants or other highly polar oils such as ether oils.
【００３２】[0032]
【発明の効果】以上のようにこの発明によれば、何れの
請求項の構成によっても、封止栓の溝内に空気が残留す
るようなことはなく、圧縮機を長期間保存する場合でも
空気が封止栓の微小な孔を通って圧縮機の内部に浸入す
るようなことは殆どなくなり、部品の酸化や油の加水分
解による劣化を抑制できる。従って、圧縮機のケース内
の水分の増加を抑制し、冷媒圧縮機を長期に渡って保管
できるものである。As described above, according to the present invention, even if the compressor is stored for a long period of time, air does not remain in the groove of the sealing plug according to the structure of any of the claims. Air hardly enters the inside of the compressor through the minute holes of the sealing plug, and deterioration of parts due to oxidation or hydrolysis of oil can be suppressed. Therefore, it is possible to suppress an increase in water in the case of the compressor and store the refrigerant compressor for a long period of time.
【図１】この発明の一実施例を示す回転型圧縮機の縦断
面図である。FIG. 1 is a longitudinal sectional view of a rotary compressor showing one embodiment of the present invention.
【図２】封止装置の要部断面図である。FIG. 2 is a sectional view of a main part of a sealing device.
【図３】封止装置の平面図である。FIG. 3 is a plan view of a sealing device.
【図４】封止栓の正面図である。FIG. 4 is a front view of a sealing plug.
【図５】ピンの正面図である。FIG. 5 is a front view of the pin.
【図６】他の実施例を示す封止装置の要部断面図であ
る。FIG. 6 is a cross-sectional view of essential parts of a sealing device showing another embodiment.
【図７】他の実施例を示す封止装置の平面図である。FIG. 7 is a plan view of a sealing device showing another embodiment.
【図８】他の実施例を示す封止栓の正面図である。FIG. 8 is a front view of a sealing plug showing another embodiment.
【図９】他の実施例を示すタッピンネジの正面図であ
る。FIG. 9 is a front view of a tapping screw showing another embodiment.
【図１０】他の実施例を示す封止装置の要部断面図であ
る。FIG. 10 is a cross-sectional view of essential parts of a sealing device showing another embodiment.
【図１１】他の実施例を示す封止装置の平面図である。FIG. 11 is a plan view of a sealing device showing another embodiment.
【図１２】他の実施例を示す封止栓の正面図である。FIG. 12 is a front view of a sealing plug showing another embodiment.
【図１３】他の実施例を示すタッピンネジの正面図であ
る。FIG. 13 is a front view of a tapping screw showing another embodiment.
【図１４】他の実施例を示す封止装置の要部断面図であ
る。FIG. 14 is a cross-sectional view of main parts of a sealing device showing another embodiment.
【図１５】他の実施例を示す封止装置の平面図である。FIG. 15 is a plan view of a sealing device showing another embodiment.
【図１６】他の実施例を示す封止栓の正面図である。FIG. 16 is a front view of a sealing plug showing another embodiment.
【図１７】他の実施例を示すピンの正面図である。FIG. 17 is a front view of a pin showing another embodiment.
【図１８】従来例を示す封止装置の要部断面図である。FIG. 18 is a cross-sectional view of a main part of a sealing device showing a conventional example.
【図１９】従来例を示す封止装置の平面図である。FIG. 19 is a plan view of a sealing device showing a conventional example.
【図２０】従来例を示す封止栓の正面図である。FIG. 20 is a front view of a conventional sealing plug.
【図２１】従来例を示すピンの正面図である。FIG. 21 is a front view of a pin showing a conventional example.
【図２２】他の従来例を示す封止装置の要部断面図であ
る。FIG. 22 is a sectional view of an essential part of a sealing device showing another conventional example.
【図２３】他の従来例を示す封止装置の平面図である。FIG. 23 is a plan view of a sealing device showing another conventional example.
【図２４】他の従来例を示す封止栓の正面図である。FIG. 24 is a front view of a sealing plug showing another conventional example.
【図２５】他の従来例を示すタッピンネジの正面図であ
る。FIG. 25 is a front view of a tapping screw showing another conventional example.
１ 密閉容器 ３ 回転圧縮要素 １０ ローラ １２ ベーン １８ オイル ２１ 封止栓 ２３ 溝 ２４ 充填剤 ２５ ピン ２６ 底部空間 DESCRIPTION OF SYMBOLS 1 Airtight container 3 Rotary compression element 10 Roller 12 Vanes 18 Oil 21 Sealing plug 23 Groove 24 Filler 25 Pins 26 Bottom space
───────────────────────────────────────────────────── フロントページの続き (72)発明者 宮田 真由美 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 ─────────────────────────────────────────────────── ─── Continued Front Page (72) Mayumi Miyata 2-5-5 Keihan Hondori, Moriguchi City, Osaka Sanyo Electric Co., Ltd.
Claims (3)
ポリオールエステル系油またはポリオールエーテル系油
等の極性の高い油を基油とした冷凍機油とを密閉容器内
に封入すると共に、この密閉容器に接続されたパイプに
封止栓を装着した冷媒圧縮機において、前記封止栓は、
その軸心部に形成された溝と、この溝内に注入された接
着剤又は乾燥剤等の充填剤と、この溝内に圧入されたピ
ン又はネジ等の棒状体とで構成されていることを特徴と
する冷媒圧縮機。1. A fluorohydrocarbon-based refrigerant containing no chlorine,
Refrigerant compressor in which a refrigerator oil containing a highly polar oil such as polyol ester oil or polyol ether oil as a base oil is enclosed in a closed container, and a pipe connected to the closed container is equipped with a sealing plug. In, the sealing plug is
It is composed of a groove formed in the axial center portion, a filler such as an adhesive or a desiccant injected into the groove, and a rod-shaped body such as a pin or a screw press-fit into the groove. Refrigerant compressor characterized by.
ポリオールエステル系油またはポリオールエーテル系油
等の極性の高い油を基油とした冷凍機油とを密閉容器内
に封入すると共に、この密閉容器に接続されたパイプに
封止栓を装着した冷媒圧縮機において、前記封止栓は、
その軸心部に形成された溝と、この溝内に注入された接
着剤又は乾燥剤等の充填剤と、この溝内に圧入されたタ
ッピンネジとで構成され、このタッピンネジのネジ長は
前記溝の深さより長く形成されていることを特徴とする
冷媒圧縮機。2. A fluorohydrocarbon-based refrigerant containing no chlorine,
Refrigerant compressor in which a refrigerator oil containing a highly polar oil such as polyol ester oil or polyol ether oil as a base oil is enclosed in a closed container, and a pipe connected to the closed container is equipped with a sealing plug. In, the sealing plug is
It is composed of a groove formed in the axial center portion, a filler such as an adhesive or a desiccant injected into the groove, and a tapping screw press-fit into the groove, and the screw length of the tapping screw is the groove. Is formed longer than the depth of the refrigerant compressor.
ポリオールエステル系油またはポリオールエーテル系油
等の極性の高い油を基油とした冷凍機油とを密閉容器内
に封入すると共に、この密閉容器に接続されたパイプに
封止栓を装着した冷媒圧縮機において、前記封止栓は、
その軸心部に形成された貫通溝と、この貫通溝内に注入
された接着剤又は乾燥剤等の充填剤と、この貫通溝内に
圧入されたピンとで構成され、このピンは前記貫通溝の
長さより長く形成されていることを特徴とする冷媒圧縮
機。3. A fluorohydrocarbon-based refrigerant containing no chlorine,
Refrigerant compressor in which a refrigerator oil containing a highly polar oil such as polyol ester oil or polyol ether oil as a base oil is enclosed in a closed container, and a pipe connected to the closed container is equipped with a sealing plug. In, the sealing plug is
It is composed of a through groove formed in the axial center portion, a filler such as an adhesive or a desiccant injected into the through groove, and a pin press-fit into the through groove. The refrigerant compressor is characterized in that it is formed longer than the length of the refrigerant compressor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP33586095A JPH09151874A (en) | 1995-11-29 | 1995-11-29 | Refrigerant compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP33586095A JPH09151874A (en) | 1995-11-29 | 1995-11-29 | Refrigerant compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH09151874A true JPH09151874A (en) | 1997-06-10 |
Family
ID=18293198
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP33586095A Pending JPH09151874A (en) | 1995-11-29 | 1995-11-29 | Refrigerant compressor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH09151874A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002325350A (en) * | 2001-04-26 | 2002-11-08 | Mitsubishi Electric Corp | Submarine repeating equipment and manufacturing method therefor |
| WO2013069072A1 (en) * | 2011-11-11 | 2013-05-16 | 三洋電機株式会社 | Compressor and sealing plug for compressor |
-
1995
- 1995-11-29 JP JP33586095A patent/JPH09151874A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002325350A (en) * | 2001-04-26 | 2002-11-08 | Mitsubishi Electric Corp | Submarine repeating equipment and manufacturing method therefor |
| WO2013069072A1 (en) * | 2011-11-11 | 2013-05-16 | 三洋電機株式会社 | Compressor and sealing plug for compressor |
| JP2013104324A (en) * | 2011-11-11 | 2013-05-30 | Sanyo Electric Co Ltd | Compressor and sealing plug for the same |
| CN103917782A (en) * | 2011-11-11 | 2014-07-09 | 三洋电机株式会社 | Compressor and sealing plug for compressor |
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