JP2001132644A - Refrigerant compressor - Google Patents
Refrigerant compressorInfo
- Publication number
- JP2001132644A JP2001132644A JP31090999A JP31090999A JP2001132644A JP 2001132644 A JP2001132644 A JP 2001132644A JP 31090999 A JP31090999 A JP 31090999A JP 31090999 A JP31090999 A JP 31090999A JP 2001132644 A JP2001132644 A JP 2001132644A
- Authority
- JP
- Japan
- Prior art keywords
- press
- refrigerant
- rivet
- refrigerant compressor
- 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
- 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
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
- F01C21/00—Component parts, details or accessories not provided for in groups F01C1/00 - F01C20/00
- F01C21/10—Outer members for co-operation with rotary pistons; Casings
-
- 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
- F04C2240/00—Components
- F04C2240/80—Other components
- F04C2240/806—Pipes for fluids; Fittings therefor
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Compressor (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、空気調和装置や冷
凍装置等に用いられる密閉型の冷媒圧縮機に関し、特に
完成した製品の保管時にこの冷媒圧縮機に備わる冷媒吐
出、吸入用等のパイプを通しての水分侵入を防ぐために
施こすパイプ封止装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hermetic refrigerant compressor used for an air conditioner, a refrigeration system and the like, and more particularly to a pipe for discharging and sucking refrigerant provided in the refrigerant compressor when storing a completed product. The present invention relates to a pipe sealing device applied to prevent moisture from entering through a pipe.
【0002】[0002]
【従来の技術】従来、密閉型の冷媒圧縮機(以下、圧縮
機と略記する)が完成する最後の段階で、この圧縮機に
備わる冷媒の吐出、吸入用のパイプや冷媒、冷凍機油の
充填用のパイプ、或いは吐出した冷媒を圧縮機に再注入
して圧縮機を冷却するためのパイプ(サブクーラーパイ
プ)等の開口を封栓する工程が行われる。また、完成し
た圧縮機に冷凍機油を封入して舶便等で輸送する際に
も、これらのパイプを封栓するようにしている。2. Description of the Related Art Conventionally, at the final stage of completion of a hermetic refrigerant compressor (hereinafter, abbreviated as a compressor), a pipe for discharging and sucking refrigerant provided in the compressor, a refrigerant, and charging of refrigerating machine oil are provided. A step of plugging an opening of a pipe for cooling or a pipe (subcooler pipe) for cooling the compressor by re-injecting the discharged refrigerant into the compressor is performed. Also, these pipes are sealed when the refrigerating machine oil is sealed in the completed compressor and transported by ship service or the like.
【0003】このパイプを封止するのは、この圧縮機に
冷媒、冷凍機油が充填され、空気調和装置等に組み込ま
れ、始めて冷凍装置として使用される迄の保存期間、或
いは船便等での輸送中にこれらのパイプを通して外部か
ら水分が圧縮機内に侵入するのを防ぐためである。[0003] The pipe is sealed by filling the compressor with a refrigerant and a refrigerating machine oil, incorporating the compressor into an air conditioner or the like, and storing the compressor for the first time as a refrigerating apparatus, or transporting by sea. This is to prevent moisture from entering the compressor from outside through these pipes.
【0004】圧縮機内に残留水分があると、冷却運転時
に冷操サイクルのキヤビラリチューブを氷結して閉塞し
運転不良となったり、また冷媒と共に循環している冷凍
機油を加水分解させ、それによって発生するスラツジに
より冷媒管を詰まらせる等の弊害が生まれる。[0004] If there is residual moisture in the compressor, the cooling tube of the cold cycle is frozen and clogged during the cooling operation to cause a malfunction, or the refrigerating machine oil circulating together with the refrigerant is hydrolyzed. The sludge generated by this causes adverse effects such as clogging the refrigerant tube.
【0005】ここで、冷媒としては従来より塩素を含む
クロロフルオロカーボン(CFC)系やハイドロクロロ
フルオロカーボン(HCFC)系の冷媒が使用されてき
たが、塩素がオゾン層を破壊する物質であるため、近年
環境保全の立場からこれらの冷媒が世界杓に規制きれて
いる。即ち、従来より冬用されていた冷媒CFC系やH
CFC系等は使用禁止とされるため、これに代わって塩
素を含まないハイドロフルオロカーボン(HFC)系の
冷媒が導入されてきている。Here, a chlorofluorocarbon (CFC) -based or hydrochlorofluorocarbon (HCFC) -based refrigerant containing chlorine has conventionally been used as a refrigerant. However, since chlorine is a substance that destroys the ozone layer, it has recently been used. These refrigerants are regulated by the world ladle from the viewpoint of environmental protection. That is, the refrigerant CFC system or H
Since the use of CFCs and the like is banned, chlorine-free hydrofluorocarbon (HFC) -based refrigerants have been introduced instead.
【0006】ところが、冷媒が代わると冷凍機油もこの
冷媒と相溶性の良いものに代える必要がある。従来の冷
媒では鉱物油が冷凍機油として使われていたが、HFC
系の冷媒ではポリエーテルグリコール(PAG)やポリオ
ールエステル系のエステル油が相応しいものとなる。し
かしこのエステル油は従来の鉱物油よりも吸湿性の高い
油であるため、圧縮機に残留水分があると、このエステ
ル油の加水分解がより促進されてスラツジの生成が増加
し、上述したスラッジによる冷媒管路の詰まりをより多
発させ、冷凍装置の信頼性の低下に繋がってしまう。However, when the refrigerant is replaced, the refrigerating machine oil also needs to be replaced with one having good compatibility with the refrigerant. In conventional refrigerants, mineral oil was used as refrigerating machine oil.
Suitable refrigerants include polyether glycol (PAG) and polyol ester ester oils. However, since this ester oil is a more hygroscopic oil than conventional mineral oil, if there is residual moisture in the compressor, the hydrolysis of this ester oil will be further promoted and the production of sludge will increase. This causes more frequent clogging of the refrigerant pipeline, which leads to lower reliability of the refrigeration system.
【0007】そこで、完成した圧縮機に対し、より水分
を残留させないように保管、維持管理することが、従来
の冷媒に代わるHFC系の冷媒を使用する圧縮機にとっ
て重要な課題となっている。[0007] Therefore, storing and maintaining the completed compressor so that no more moisture remains therein is an important issue for a compressor using an HFC-based refrigerant instead of the conventional refrigerant.
【0008】さて、本発明の実施例の項でも説明するよ
うに、図1に示す完成した圧縮機1には冷媒の吐出用の
パイプ2と吸入用のパイプ3が、さらに図2に示す完成
した別の圧縮機1には冷媒及び冷凍機油を充填させる時
に使われるチャージ用パイプ4、また圧縮機1を冷却す
るために吐出した冷媒の一部を外部で熱交換して再注入
させるためのサブクーラパイプ5等が、本体ケース1a
あるいは1bの外面に突出して設けられている。そして
これらパイプを封栓することとなるが、その方法には特
開平7−332768号公報に記載されているようなも
のが知られていた。それは図6の(a)と(b)に示す
ようなパイプ2と3の開口にゴム栓6aと6bを単に圧
入する方法や、図7の(c)と(d)に示すようにゴム
栓6aと6bをした後にピン7aやビス7bをゴム栓6
aと6bに圧入して、ゴム栓6aと6bを拡げてパイプ
2と3への密着度を高める方法等で対応していた。As explained in the embodiment of the present invention, the completed compressor 1 shown in FIG. 1 has a pipe 2 for discharging refrigerant and a pipe 3 for suctioning the refrigerant. The other compressor 1 has a charge pipe 4 used for charging the refrigerant and the refrigerating machine oil, and a part for exchanging heat and re-injecting a part of the refrigerant discharged to cool the compressor 1. The subcooler pipe 5 and the like are
Alternatively, it is provided so as to protrude from the outer surface of 1b. Then, these pipes are sealed, and a method as described in JP-A-7-332768 has been known. This can be achieved by simply pressing the rubber plugs 6a and 6b into the openings of the pipes 2 and 3 as shown in FIGS. 6A and 6B, or by using a rubber plug as shown in FIGS. 7C and 7D. After performing 6a and 6b, the pin 7a or the screw 7b is
a and 6b, and the rubber stoppers 6a and 6b are expanded to increase the degree of close contact with the pipes 2 and 3.
【0009】[0009]
【発明が解決しようとする課題】しかし、上述した従来
のパイプの封栓構造であるとゴムの弾力だけでシールし
ているものは、そのシール性が十分でなかったり、ゴム
栓にピンやビスを圧入したものでは圧縮機を使用する時
にゴム栓が抜き難いことや、ゴム栓からピンやビスが外
し難いため分別廃棄し難かった。However, the conventional pipe sealing structure described above, which seals only with the elasticity of rubber, does not have sufficient sealing properties, or the rubber plug has pins or screws. When the compressor was used, it was difficult to remove the rubber stopper when using the compressor, and it was difficult to separate and discard the pin or screw from the rubber stopper.
【0010】本発明は上記の点に鑑み成されたもので、
圧縮機に備わる各種パイプの開口部を確実にシールする
ことで、外部からの水分侵入を完全に防止でき、このシ
ール作業も容易に行へ、且つ圧縮機の使用時には容易に
ゴム栓を抜くことができ、さらに分別廃棄も容易に行う
ことが可能な圧縮機の封栓構造を提供することを目的と
し、これによって吸湿性の高い冷凍機油を使用可能と
し、従来の冷媒に代わるHFC系冷媒を使用し、フロン
規制に応えることのできる圧縮機の提供を実現させ、ま
た完成品の圧縮機の長期保存を可能とし、信頼性を確保
できるようにしたものである。[0010] The present invention has been made in view of the above points,
By securely sealing the openings of the various pipes provided in the compressor, the intrusion of moisture from the outside can be completely prevented, and this sealing work can be easily performed and the rubber stopper can be easily removed when using the compressor. It is an object of the present invention to provide a compressor sealing structure capable of easily separating and discarding, thereby making it possible to use refrigerating machine oil having high hygroscopicity, and to use an HFC-based refrigerant instead of the conventional refrigerant. It is intended to provide a compressor that can be used and comply with the regulations on CFCs, and also to enable long-term storage of the completed compressor and ensure reliability.
【0011】[0011]
【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、冷凍サイクル中で吸入し
た冷媒を圧縮吐出し、循環させる密閉型の冷媒圧縮機で
あって、生産された冷媒圧縮機の保管時、圧縮機本体に
設けられた冷媒吸入パイプ、冷媒吐出パイプ、或いは冷
媒補充用パイプ等の開口を、この開口に挿入されたゴム
栓にて封止するようにした構造において、ゴム栓の栓部
を拡げる圧入部と、軸方向長さが5mm以上の非圧入部
とを有するリベットを圧入した構成を備えることによっ
て、リベットの非圧入部を取り外しのための係止部とす
るものである。SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the invention according to claim 1 is a hermetic-type refrigerant compressor that compresses, discharges, and circulates a refrigerant sucked in a refrigeration cycle. When the refrigerant compressor is stored, an opening of a refrigerant suction pipe, a refrigerant discharge pipe, a refrigerant refilling pipe, or the like provided in the compressor body is sealed with a rubber stopper inserted into the opening. A rivet having a press-fit portion for expanding a plug portion of a rubber plug and a non-press-fit portion having an axial length of 5 mm or more, wherein a locking portion for removing the non-press-fit portion of the rivet is provided. It is assumed that.
【0012】請求項2にかかる発明は、リベットの非圧
入部には、ゴム栓の栓部に圧入される部位よりも太い圧
入規制部と、引き抜き用の係止部とを備えることによっ
て、リベット圧入量の規制と取り外しを容易にするもの
である。According to a second aspect of the present invention, the non-press-fitted portion of the rivet is provided with a press-fit restricting portion larger than a portion to be press-fitted into the plug portion of the rubber plug, and a locking portion for pulling out the rivet. This facilitates regulation and removal of the press-fit amount.
【0013】請求項3にかかる発明は、引き抜き用の係
止部は、リベットの非圧入部に設けた孔で構成されたこ
とによって、リベットの取り外しを容易にするものであ
る。According to a third aspect of the present invention, the pulling-out engaging portion is constituted by a hole provided in the non-press-fitting portion of the rivet, thereby facilitating the removal of the rivet.
【0014】請求項4にかかる発明は、引き抜き用の係
止部は、リベットの非圧入部の端部が非圧入部の軸径よ
り大きく構成されたことによって、リベットの取り外し
を容易にするものである。According to a fourth aspect of the present invention, in the pulling-out engaging portion, the end of the non-press-fit portion of the rivet is configured to be larger than the shaft diameter of the non-press-fit portion, thereby facilitating removal of the rivet. It is.
【0015】請求項5にかかる発明は、リベットが金
属、合成樹脂、或いはセラミックからなることによっ
て、リベットの製造及び使用環境に合わせるものであ
る。According to a fifth aspect of the present invention, the rivet is made of a metal, a synthetic resin, or a ceramic, so that the rivet can be manufactured and used in a suitable environment.
【0016】請求項6にかかる発明は、冷凍サイクルが
ハイドロフルオロカーボンを主成分とする冷媒を用いる
と共に、この冷媒と相溶性があって吸水性の高い冷凍機
油を使用していることによって、フロン規制に対応する
ものである。According to a sixth aspect of the present invention, the refrigeration cycle uses a refrigerant containing hydrofluorocarbon as a main component, and a refrigeration oil compatible with the refrigerant and having a high water absorption. It corresponds to.
【0017】[0017]
【発明の実施の形態】本発明の実施の形態を図を参照し
て説明する。なお、同一構成に関しては同一符号を用い
る。DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described with reference to the drawings. Note that the same reference numerals are used for the same components.
【0018】図1及び図2において、完成した圧縮機1
には前述したように本体ケース1aと1bに機能別の各
種のパイプ2,3,4,5等が設けられている。13は
圧縮機1を設置固定するための固定脚を示す。1 and 2, the completed compressor 1
As described above, various pipes 2, 3, 4, 5 and the like for respective functions are provided in the main body cases 1a and 1b. Reference numeral 13 denotes fixed legs for installing and fixing the compressor 1.
【0019】図3の(e)及び(f)は本発明に係る封
栓構造を示す。ここで(e)及び(f)は封栓構造のゴ
ム栓とリベットの形状がそれぞれ異なる例を示してお
り、封栓されるパイプとして吐出用のパイプ2を例に取
り説明する。FIGS. 3E and 3F show a plug structure according to the present invention. Here, (e) and (f) show examples in which the shapes of the rubber plug and the rivet of the plug structure are different from each other, and a description will be given taking the discharge pipe 2 as an example of the pipe to be plugged.
【0020】12はこのパイプ2に挿入されその開口を
封栓するゴム栓で、栓部12aと栓頭部12b及び挿入
治具用の孔12cとを有している。勿論この栓体と同様
のものが他のパイプ3,4,5にも挿入されて封栓され
る。Reference numeral 12 denotes a rubber plug which is inserted into the pipe 2 and seals its opening, and has a plug portion 12a, a plug head 12b, and a hole 12c for an insertion jig. Of course, a plug similar to this plug is inserted into the other pipes 3, 4, 5 and sealed.
【0021】さらに本発明のゴム栓12には、パイプ2
に挿入されている栓部12aを常時拡げるように作用す
るリベット8がゴム栓12の挿入治具用の孔12c内に
圧入されている。即ち、具体的にはパイプ2に挿入され
た状態のゴム栓12の挿入治具用の孔12cの内径より
も大きい外径を有するリベット8を圧入することで、こ
れによって栓部12aも拡がり、その栓部径が径大とな
ってパイプ2の内面に強く密着し、パイプ2に対するシ
ール性は大幅に高まる。Further, the rubber stopper 12 of the present invention includes a pipe 2
The rivet 8 acting to always expand the plug portion 12a inserted into the rubber plug 12 is press-fitted into the hole 12c for the insertion jig of the rubber plug 12. That is, by specifically press-fitting the rivet 8 having an outer diameter larger than the inner diameter of the insertion jig hole 12c of the rubber plug 12 inserted into the pipe 2, the plug portion 12a is also expanded, The diameter of the plug part becomes large and closely adheres to the inner surface of the pipe 2, so that the sealing performance for the pipe 2 is greatly improved.
【0022】一方、このリベット8はゴム栓12への圧
入部8aと軸方向の長さが5mm以上の非圧入部8bと
から成り、非圧入部8bには圧入部8aよりも大きい径
を有した圧入量を規制する規制部8cと、圧入したリベ
ット8の引き抜きを容易にする係止部8dとを備えてい
る。On the other hand, the rivet 8 is composed of a press-fitted portion 8a into the rubber stopper 12 and a non-press-fitted portion 8b having an axial length of 5 mm or more. The non-pressed-fit portion 8b has a larger diameter than the press-fitted portion 8a. The rivet 8 is provided with a restricting portion 8c for restricting the press-fit amount and a locking portion 8d for facilitating pulling out of the rivet 8 press-fitted.
【0023】図4及び図5はリベット8の非圧入部8b
の形状が異なる例を示したもので、図4は非圧入部8b
の径が圧入部8aよりも一段大きい径を有している形状
で、この径の大きくなった部位が規制部8dとして機能
している。また、図5は非圧入部8bの圧入部8a側の
外周に圧入量を規制する凸形状である規制部8cを有し
たものである。また、リベット8の引き抜き用の係止部
8dの形成例として、図中(g)と(j)が非圧入部8
bに備えた孔であること、(h)と(k)が非圧入部8
bの端部側を径方向に潰した形状であること、(i)と
(m)が非圧入部8bの端部側を軸方向に潰した形状で
あることを示している。FIGS. 4 and 5 show the non-press-fitted portion 8b of the rivet 8.
FIG. 4 shows an example in which the shape of the non-press-fit portion 8b is different.
Has a diameter one step larger than that of the press-fitting portion 8a, and the portion having the larger diameter functions as the regulating portion 8d. FIG. 5 shows a non-press-fit portion 8b having a convex-shaped restricting portion 8c on the outer periphery of the press-fit portion 8a on the side of the press-fit portion 8a. In addition, as examples of formation of the locking portion 8d for pulling out the rivet 8, (g) and (j) in the figure show the non-press-fitting portion 8d.
b, and (h) and (k) are non-press-fitted portions 8
b shows that the end side is crushed in the radial direction, and (i) and (m) show that the end side of the non-press-fitted portion 8b is crushed in the axial direction.
【0024】これにより、圧縮機の使用時には係止部8
dに引き抜き用の工具等をセットでき、容易にリベット
を抜くことができ、さらにゴム栓12とリベット8との
分別廃棄も容易に行うことが可能となる。Thus, when the compressor is used, the locking portion 8 is used.
A pulling tool or the like can be set in d, the rivet can be easily pulled out, and the rubber stopper 12 and the rivet 8 can be easily separated and discarded.
【0025】また、リベット8の材質も上記リベットの
形状との組み合せで、金属、合成樹脂、或いはセラミッ
クの何れかを選択することによって、リベットの製造方
法として例えばプレス、成型機、燒結などを選択でき、
さらに使用環境として例えば冷凍機油及び冷媒の種類、
保管及び輸送時の温度等に合わせることができ、低価格
で作業性の良いパイプ封止装置を提供することが可能と
なる。The material of the rivet 8 is selected from the group consisting of metal, synthetic resin, and ceramic in combination with the shape of the rivet, thereby selecting a rivet manufacturing method such as a press, a molding machine, and sintering. Can,
Furthermore, as the use environment, for example, types of refrigerating machine oil and refrigerant,
It is possible to provide a pipe sealing device which can be adjusted to the temperature during storage and transportation, etc., and which is inexpensive and has good workability.
【0026】これによって、吸湿性の高い冷凍機油を使
用可能とし、従来の冷媒に代わるHFC系冷媒を使用
し、フロン規制に応えることのできる圧縮機の提供を実
現させ、また完成品の圧縮機の長期保存を可能とし、信
頼性を確保することができる。This makes it possible to use a refrigerant oil having high hygroscopicity, to use a HFC-based refrigerant instead of the conventional refrigerant, and to provide a compressor that can comply with Freon regulations. Can be stored for a long time, and reliability can be ensured.
【0027】[0027]
【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、冷凍サイクル中で吸入した冷媒を圧縮吐出し、循
環させる密閉型の冷媒圧縮機であって、生産された冷媒
圧縮機の保管時、圧縮機本体に設けられた冷媒吸入パイ
プ、冷媒吐出パイプ、或いは冷媒補充用パイプ等の開口
を、この開口に挿入されたゴム栓にて封止するようにし
た構造において、ゴム栓の栓部を拡げる圧入部と、軸方
向長さが5mm以上の非圧入部とを有するリベットを圧
入した構成を備えることによって、リベットの非圧入部
をリベット取り外しのための係止部とすことができるの
で、パイプの開口部を確実にシールすることで外部から
の水分侵入を完全に防止し、容易にゴム栓を抜くことこ
とが可能になる。As described above, according to the first aspect of the present invention, there is provided a hermetic-type refrigerant compressor for compressing, discharging, and circulating refrigerant sucked in a refrigeration cycle. At the time of storage, the opening of the refrigerant suction pipe, the refrigerant discharge pipe, or the refrigerant refilling pipe provided in the compressor body is sealed with a rubber plug inserted into the opening. By providing a configuration in which a rivet having a press-fit portion for expanding the plug portion and a non-press-fit portion having an axial length of 5 mm or more is provided, the non-press-fit portion of the rivet can be a locking portion for removing a rivet. Since it is possible, by completely sealing the opening of the pipe, intrusion of moisture from the outside can be completely prevented, and the rubber stopper can be easily removed.
【0028】請求項2の発明によれば、リベットの非圧
入部には、ゴム栓の栓部に圧入される部位よりも太い圧
入規制部と、引き抜き用の係止部とを備えることによっ
て、リベット圧入量の規制とゴム栓及びリベットの取り
外しとを容易にすることが可能になる。According to the second aspect of the present invention, the non-press-fitted portion of the rivet is provided with a press-fit restricting portion which is larger than a portion to be press-fitted into the plug portion of the rubber plug, and a locking portion for pulling out. It is possible to easily regulate the rivet press-in amount and remove the rubber stopper and the rivet.
【0029】請求項3の発明によれば、引き抜き用の係
止部は、リベットの非圧入部に設けた孔で構成されたこ
とによって、リベットの取り外し用に特別な工具を必要
とせずに容易に係止でき、ゴム栓及びリベットを取り外
すことが可能になる。According to the third aspect of the present invention, the engaging portion for pulling out is constituted by the hole provided in the non-press-fitting portion of the rivet, so that it is easy to remove the rivet without requiring a special tool. And the rubber stopper and rivet can be removed.
【0030】請求項4の発明によれば、引き抜き用の係
止部は、リベットの非圧入部の端部が非圧入部の軸径よ
り大きく構成されたことによって、この係止部にリベッ
トの取り外し用の工具等を容易に係止でき、ゴム栓及び
リベットを取り外すことが可能になる。According to the fourth aspect of the present invention, the end portion of the non-press-fitted portion of the rivet is configured to be larger than the shaft diameter of the non-press-fitted portion. A tool for removal can be easily locked, and the rubber stopper and the rivet can be removed.
【0031】請求項5の発明によれば、リベットが金
属、合成樹脂、或いはセラミックからなることによっ
て、この材質とリベットの形状との組み合せで、製造方
法及び使用環境に適した低価格で作業性の良いパイプ封
止装置を提供することが可能となる。According to the fifth aspect of the present invention, since the rivet is made of metal, synthetic resin, or ceramic, the combination of this material and the shape of the rivet enables low-cost workability suitable for the manufacturing method and use environment. It is possible to provide a good pipe sealing device.
【0032】請求項6の発明によれば、冷凍サイクルが
ハイドロフルオロカーボンを主成分とする冷媒を用いる
と共に、この冷媒と相溶性があって吸水性の高い冷凍機
油を使用していることによって、冷凍機油を封入済の冷
媒圧縮機を使用しても、長期保存、長期輪送中に水分の
侵入を確実に防止できるので、容易にフロン規制に対応
することが可能になる。According to the sixth aspect of the present invention, the refrigeration cycle uses a refrigerant containing hydrofluorocarbon as a main component and uses a refrigerating machine oil which is compatible with the refrigerant and has a high water absorption. Even if a refrigerant compressor filled with machine oil is used, it is possible to reliably prevent water from entering during long-term storage and long-term transport, so that it is possible to easily comply with CFC regulations.
【図1】本発明に係る閉栓装置を施した密閉型冷媒圧縮
機の正面図である。FIG. 1 is a front view of a hermetic refrigerant compressor provided with a plugging device according to the present invention.
【図2】本発明に係る閉栓装置を施した他の密閉型冷媒
圧縮機の正面図である。FIG. 2 is a front view of another hermetic refrigerant compressor provided with the plugging device according to the present invention.
【図3】本発明のリベットを圧入して拡がるゴム栓にて
パイプを閉塞している様相を示す要部断面図である。FIG. 3 is a sectional view of an essential part showing a state in which a pipe is closed by a rubber stopper which is press-fitted with a rivet of the present invention and spreads.
【図4】本発明のリベットの形状を示す平面図と頭部側
面図である。FIG. 4 is a plan view and a head side view showing the shape of the rivet of the present invention.
【図5】本発明のリベットの他の形状を示す平面図と頭
部側面図である。FIG. 5 is a plan view and a head side view showing another shape of the rivet of the present invention.
【図6】ゴム栓のみでパイプを閉塞する従釆例を示す要
部断面図である。FIG. 6 is a sectional view of a main part showing a conventional example in which a pipe is closed only with a rubber stopper.
【図7】ピン又はビスを圧入してゴム栓を拡げてパイプ
を閉栓する他の従釆例を示す要部断面図である。FIG. 7 is a sectional view showing a main part of another conventional example in which a rubber plug is expanded by press-fitting a pin or a screw to close a pipe.
1 冷媒圧縮機 2 冷媒吐出用のパイプ 3 冷媒吸入用のパイプ 4 チャージ用パイプ 6 ゴム栓 8 リベット REFERENCE SIGNS LIST 1 refrigerant compressor 2 refrigerant discharge pipe 3 refrigerant suction pipe 4 charging pipe 6 rubber stopper 8 rivet
Claims (6)
出し、循環させる密閉型の冷媒圧縮機であって、生産さ
れた冷媒圧縮機の保管時、圧縮機本体に設けられた冷媒
吸入パイプ、冷媒吐出パイプ、或いは冷媒補充用パイプ
等の開口を、前記開口に挿入されたゴム栓にて封止する
ようにした構造において、前記ゴム栓の栓部を拡げる圧
入部と、軸方向長さが5mm以上の非圧入部とを有する
リベットを圧入したことを特徴とする冷媒圧縮機。1. A closed-type refrigerant compressor for compressing, discharging, and circulating a refrigerant sucked in a refrigeration cycle, wherein a refrigerant suction pipe provided in a compressor body when the produced refrigerant compressor is stored. In a structure in which an opening of a refrigerant discharge pipe or a pipe for replenishing refrigerant is sealed with a rubber plug inserted into the opening, a press-fit portion for expanding a plug portion of the rubber plug and an axial length are A refrigerant compressor wherein a rivet having a non-press-fitted portion of 5 mm or more is press-fitted.
栓の栓部に圧入される部位よりも太い圧入規制部と、引
き抜き用の係止部とを備えたことを特徴とする請求項1
に記載の冷媒圧縮機。2. The non-press-fitting portion of the rivet is provided with a press-fit restricting portion that is larger than a portion that is press-fitted into the plug portion of the rubber plug, and a locking portion for pulling out. 1
3. The refrigerant compressor according to claim 1.
トの非圧入部に設けた孔で構成されたことを特徴とする
請求項2に記載の冷媒圧縮機。3. The refrigerant compressor according to claim 2, wherein the pull-out locking portion is formed by a hole provided in a non-press-fit portion of the rivet.
トの非圧入部の端部が非圧入部の軸径より大きく構成さ
れたことを特徴とする請求項2に記載の冷媒圧縮機。4. The refrigerant compressor according to claim 2, wherein the pull-out engaging portion is configured such that an end of the non-press-fit portion of the rivet is larger than a shaft diameter of the non-press-fit portion.
セラミックからな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 the rivet is made of metal, synthetic resin, or ceramic.
ーボンを主成分とする冷媒を用いると共に、この冷媒と
相溶性があって吸水性の高い冷凍機油を使用しているこ
とを特徴とする請求項1ないし請求項5に記載の冷媒圧
縮機。6. The refrigeration cycle according to claim 1, wherein a refrigerant containing hydrofluorocarbon as a main component is used, and a refrigeration oil which is compatible with the refrigerant and has a high water absorption is used. Item 6. A refrigerant compressor according to item 5.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP31090999A JP2001132644A (en) | 1999-11-01 | 1999-11-01 | Refrigerant compressor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP31090999A JP2001132644A (en) | 1999-11-01 | 1999-11-01 | Refrigerant compressor |
Publications (1)
Publication Number | Publication Date |
---|---|
JP2001132644A true JP2001132644A (en) | 2001-05-18 |
Family
ID=18010857
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP31090999A Pending JP2001132644A (en) | 1999-11-01 | 1999-11-01 | Refrigerant compressor |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2001132644A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2003193974A (en) * | 2001-12-21 | 2003-07-09 | Sanyo Electric Co Ltd | Two-stage compression refrigerating machine, and filling method for refrigerating machine oil and refrigerant |
EP3683399A1 (en) | 2019-01-16 | 2020-07-22 | Toshiba Carrier Corporation | Rotary compressor and refrigeration cycle device |
-
1999
- 1999-11-01 JP JP31090999A patent/JP2001132644A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2003193974A (en) * | 2001-12-21 | 2003-07-09 | Sanyo Electric Co Ltd | Two-stage compression refrigerating machine, and filling method for refrigerating machine oil and refrigerant |
EP3683399A1 (en) | 2019-01-16 | 2020-07-22 | Toshiba Carrier Corporation | Rotary compressor and refrigeration cycle device |
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