JP2001099083A - Two-cylinder rotary comperssor - Google Patents

Two-cylinder rotary comperssor

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Publication number
JP2001099083A
JP2001099083A JP27880399A JP27880399A JP2001099083A JP 2001099083 A JP2001099083 A JP 2001099083A JP 27880399 A JP27880399 A JP 27880399A JP 27880399 A JP27880399 A JP 27880399A JP 2001099083 A JP2001099083 A JP 2001099083A
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JP
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Patent type
Prior art keywords
container
closed
pressure
space
thickness
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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
Application number
JP27880399A
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Japanese (ja)
Inventor
Midori Futagawame
Akira Hashimoto
Kenzo Matsumoto
Masazumi Sakaniwa
Hiroyuki Sawabe
緑 二川目
正純 坂庭
兼三 松本
彰 橋本
浩幸 沢辺
Original Assignee
Sanyo Electric Co Ltd
三洋電機株式会社
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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04CROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C18/00Rotary-piston pumps specially adapted for elastic fluids
    • F04C18/30Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
    • F04C18/34Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members
    • F04C18/356Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the outer member
    • F04C18/3562Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the outer member the inner and outer member being in contact along one line or continuous surfaces substantially parallel to the axis of rotation
    • F04C18/3564Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the outer member the inner and outer member being in contact along one line or continuous surfaces substantially parallel to the axis of rotation the surfaces of the inner and outer member, forming the working space, being surfaces of revolution
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04CROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C23/00Combinations 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
    • F04C23/001Combinations 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 of similar working principle
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04CROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C23/00Combinations 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
    • F04C23/008Hermetic pumps

Abstract

PROBLEM TO BE SOLVED: To improve a pressure resistant characteristic without increasing thickness of a closed container. SOLUTION: Two suction pipes 40 (40a, 40b) to be provided corresponding to adjacent two compressing elements 20 (20a, 20b) are fixed to a closed container 10 with a space between them larger than a space between each compressing element 20 (20a, 20b). With this structure, a pressure resistant characteristic of the closed container 10 is improved without interesting thickness of the closed container 10.

Description

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

【0001】 [0001]

【発明の属する技術分野】本発明は、例えば空気調和機等の冷凍装置に用いられる2気筒ロータリ圧縮機に関する。 The present invention relates to relates to, for example, two-cylinder rotary compressor used in refrigeration devices such as air conditioner.

【0002】 [0002]

【従来の技術】従来、空気調和機等の冷凍装置においてロータリ圧縮機が多用され、その中でも静音性や能力向上のため多気筒ロータリ圧縮機を用いる場合が増えている。 Conventionally, a rotary compressor is widely used in refrigeration devices such as air conditioner, are increasingly case of using the multi-cylinder rotary compressor for quietness and capacity building among them.

【0003】この多気筒ロータリ圧縮機は、同一構成の圧縮要素が隣接して設けられた構成で、図2においては2気筒ロータリ圧縮機の構成を示している。 [0003] The multi-cylinder rotary compressor, a configuration in which compression element having the same configuration is provided adjacent shows a configuration of a two-cylinder rotary compressor in FIG.

【0004】この2気筒ロータリ圧縮機は、密閉容器1 [0004] The 2-cylinder rotary compressor, the closed casing 1
10内に上下2つの圧縮要素120(121,122) Vertically into 10 two compression element 120 (121, 122)
を有し、その上にこれらを駆動する駆動要素130を有している。 We have, have a driving element 130 that drives them thereon.

【0005】そして、各圧縮要素120には機外から延設された吸入管140(141,142)が挿嵌されている。 [0005] The suction pipe 140 extending from the outside (141, 142) is inserted in each compression element 120. この吸入管140は、隣接して密閉容器110に溶接等により固着されている。 The suction pipe 140 is fixed by welding or the like in a sealed container 110 and adjacent.

【0006】これにより冷媒は吸入管140を介して機外から圧縮要素120に吸入され、圧縮されて、一旦密閉容器110内に吐出され後、吐出管145から機外に吐出される。 [0006] Thus the refrigerant is sucked from the outside through the suction pipe 140 into the compression element 120 is compressed, after once discharged into the sealed container 110, it is discharged from the discharge pipe 145 to the outside of the apparatus.

【0007】このような、冷凍装置に用いられる冷媒として、これまで主としてR12冷媒が使用されてきた。 [0007] As such a refrigerant used in the refrigeration system, mainly R12 refrigerant have been used heretofore.
しかし、このR12冷媒にはオゾン層を破壊する塩素が含まれているため使用が規制され、これに代る冷媒が開発されている。 However, use because it contains chlorine to destroy the ozone layer in the R12 refrigerant is restricted, the refrigerant in the alternative has been developed.

【0008】即ち、R12等のCFC(Chloro [0008] In other words, the R12, such as CFC (Chloro
Fluoro Carbon)冷媒は塩素を含み、これがオゾン層を破壊するため、1995年末には新規生産が中止となっている。 Fluoro Carbon) refrigerant comprises chlorine, it is to destroy the ozone layer, the end of 1995 has become a new production canceled.

【0009】これに対しR22等のHCFC(Hydr [0009] On the other hand, such as R22 HCFC (Hydr
o Chloro FluoroCarbon)冷媒は塩素を含んでいるものの、同時に水素を含んでいるためオゾン層破壊の程度が小さいことから現行の主流となっているが、このR22等の冷媒も2020年には生産中止になることが決められている。 Although o Chloro Fluorocarbon) refrigerants include chlorine, at the same time the degree of ozone depletion because it contains hydrogen has become the current mainstream is smaller, the refrigerant of the R22 and the like also discontinued in 2020 It has been determined that become.

【0010】そこで、これらの代替フロン冷媒として塩素を含まず、水素を含んだオゾン層を破壊しないR40 [0010] Therefore, not contain chlorine as these alternative Flon refrigerants, do not destroy the ozone layer containing hydrogen R40
4A,R410A,R134A等のHFC(Hydro 4A, R410A, such as R134A HFC (Hydro
Fluoro Carbon)冷媒が開発され、使用されるようになっている。 Fluoro Carbon) refrigerant is developed, and is used.

【0011】 [0011]

【発明が解決しようとする課題】しかしながら、このようなHFC冷媒は圧縮要素120から吐出される際の吐出圧力がこれまでの冷媒と比べて高圧になるため以下のような問題があった。 [SUMMARY OF THE INVENTION However, such HFC refrigerants have the following problems since the discharge pressure when discharged from the compression element 120 is high in comparison with the refrigerant before.

【0012】即ち、上述したように冷媒は密閉容器11 Namely, the refrigerant as described above sealed container 11
0に隣接して固着された吸入管140を介して圧縮要素120に吸入され、この圧縮要素120で圧縮された後、密閉容器110内に吐出される。 0 through the suction pipe 140 which is fixed adjacent sucked into the compression element 120, after being compressed by the compression element 120, is discharged into the sealed container 110.

【0013】このため密閉容器110内の圧力が従来より高くなってしまい、強度の弱い部分、例えば吸入管1 [0013] Thus the pressure in the sealed container 110 becomes higher than conventional, weak intensity, eg suction pipe 1
40が隣接する密閉容器110の部分Pに亀裂が生じたりする問題がある。 40 there is a problem that cracks or cause the portion P of the sealed container 110 adjacent.

【0014】特に、吸入管140は、銀ロウ等により密閉容器110に溶接されているので、溶接部分及びその近傍は焼鈍され他の部分に比べて強度が低下している。 [0014] In particular, the suction pipe 140 because it is welded to the closed container 110 by silver brazing or the like, welded portions and the vicinity thereof strength than other portions annealed is reduced.

【0015】無論、冷媒をHFC冷媒に変更したときの内圧上昇に対応して、密閉容器110の肉厚を厚くすることも可能であるが、このような場合には圧縮機が重くなると共に、密閉容器110に使用される部材量が増えることからコストアップの要因となってしまう。 [0015] Of course, in response to increased internal pressure when changing the refrigerant HFC refrigerant, it is possible to increase the thickness of the sealed vessel 110, the compressor is heavy in such a case, it becomes an increase in cost since the member quantities used in the sealed container 110 is increased.

【0016】そこで、本発明は、密閉容器の肉厚を厚くしたりしないで耐圧特性を向上できるようにした2気筒ロータリ圧縮機を提供することを目的とする。 [0016] The present invention has an object to provide a two-cylinder rotary compressor to be able to improve the withstand voltage characteristics without or increase the thickness of the sealed vessel.

【0017】 [0017]

【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、冷媒を圧縮する圧縮要素が2つ隣接して設けられてなる圧縮手段と、該圧縮手段を駆動する駆動手段とが密閉容器に収納され、当該密閉容器に圧縮要素と嵌合する吸入管が固着されて、冷媒を機外から圧縮要素に導き、当該圧縮要素で圧縮された冷媒が密閉容器内に一旦吐出されてから機外に吐出されてなる2気筒ロータリ圧縮機において、隣接する2つの圧縮要素に対応して設けられた2つの吸入管が、各圧縮要素のなす間隔より広くなるように密閉容器に固着して、 To solve the above object, according to an aspect of, the invention according to claim 1 drives the compressing means compressing element for compressing a refrigerant is provided adjacent two, the compression means and driving means are accommodated in a sealed container, is fixed suction pipe to be fitted to the compression element to the closed container, leads to the refrigerant from the outside to the compression element, the refrigerant compressed in the compression element is a closed vessel in once discharged composed discharged outside the apparatus from the two-cylinder rotary compressor, the sealed as two suction tubes provided in correspondence to the two adjacent compression element becomes wider than forming spacing between the compression element and fixed to the container,
密閉容器の肉厚を厚くしたりしないで耐圧特性を向上できるようにしたことを特徴とする。 Without or increase the thickness of the sealed container is characterized in that to be able to improve the withstand voltage characteristics.

【0018】請求項2にかかる発明は、圧縮要素の中間位置からずれた位置に吸入管が嵌合して、圧縮要素の隣接間隔より大きな間隔で吸入管が隣接するようにして、 [0018] Such invention in claim 2, the suction pipe is fitted at a position displaced from the intermediate position of the compression element, the suction pipe so as to be adjacent with greater spacing than the distance between the adjacent compression element,
密閉容器の肉厚を厚くしたりしないで耐圧特性を向上できるようにしたことを特徴とする。 Without or increase the thickness of the sealed container is characterized in that to be able to improve the withstand voltage characteristics.

【0019】請求項3にかかる発明は、冷媒がHFC冷媒であることを特徴とする。 [0019] The invention according to claim 3, characterized in that the refrigerant is HFC refrigerant.

【0020】 [0020]

【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。 The embodiment of the embodiment of the present invention will be described with reference to the drawings. 図1は本発明にかかる2気筒ロータリ圧縮機の構成を示す図である。 Figure 1 is a diagram showing a configuration of a two-cylinder rotary compressor according to the present invention.

【0021】なお、使用する冷媒はR404A,R41 [0021] It should be noted that the refrigerant used is R404A, R41
0A,R407C,R134A等のHFC(Hydro 0A, R407C, such as R134A HFC (Hydro
Fluoro Carbon)冷媒である。 Fluoro Carbon) is a refrigerant.

【0022】この2気筒ロータリ圧縮機は、略同一構成の2つの圧縮要素20(20a、20b)が上下に配設されてなる圧縮手段、この圧縮手段の上方に設けられた駆動手段である駆動要素30を有し、これらが密閉容器10(11,12)内に収納されている。 [0022] The 2-cylinder rotary compressor, two compression elements 20 (20a, 20b) of substantially the same configuration compression means is disposed vertically, the drive is a driving means provided above the compressing means has an element 30, it is housed in the sealed container 10 (11, 12) within.

【0023】なお、以下の説明では駆動要素30側に設けられた圧縮要素20を第1圧縮要素20a、その下に設けられた圧縮要素20を第2圧縮要素20bと呼称する。 [0023] In the following description referred compression element 20 provided on the drive element 30 side first compression element 20a, the compression element 20 provided thereunder and the second compression element 20b.

【0024】密閉容器10は、筒状のシェル部12とこれにアーク溶接等により固着されたエンドキャップ11 The sealed container 10, end cap 11 which is fixed by this arc welding a tubular shell portion 12
により形成されて、エンドキャップ11には駆動要素3 Is formed by, to the end cap 11 the driving element 3
0に電力を供給する際の中継端子をなすターミナル46 0 terminal 46 that forms the relay terminals when supplying power to the
が設けられると共に、圧縮された冷媒を機外に吐出す吐出管45が設けられている。 Together are provided, the discharge pipe 45 is provided for discharging a compressed refrigerant to outside.

【0025】また、シェル部12には、機外から圧縮要素20に冷媒を導く吸入管40(40a,40b)が銀ロウ等により隣接して固着され、その底部はオイルが貯留するオイル溜44となっている。 Further, the shell portion 12, the suction pipe 40 (40a, 40b) for guiding the refrigerant to the compression element 20 from the outside is secured adjacent the silver solder or the like, the oil reservoir 44 the bottom of the oil reserving It has become.

【0026】駆動要素30は、所謂磁極集中巻方式のD The driving element 30, D-called magnetic pole concentrated winding type
Cブラシレスモータ等からなるもので、回転子32とシェル部12に固着された固定子31とから構成され、その回転軸33が圧縮要素20に連結されて回転力を伝達するようになっている。 It consists of C brushless motor or the like, is composed of the rotor 32 and the shell 12 to the anchored stator 31. The rotation shaft 33 is adapted to transmit the rotational force is coupled to the compression element 20 .

【0027】回転軸33は、第1軸受50及び第2軸受51により回動自在に支持され、その下端中心部にはオイル溜44からオイルを汲上げるポンプ47が設けられて、当該ポンプ47により汲上げられたオイルはオイル通路48を経て各摺動部に供給されるようになってる。 The rotary shaft 33, the first bearing 50 and second bearing 51 is rotatably supported, at its lower end center portion of the oil pumping gel pump 47 is provided from the oil reservoir 44 by the pump 47 pumped obtained oil are supplied to the respective sliding portions through the oil passage 48.

【0028】各圧縮要素20には、吸入管40が挿嵌されると共に、吐出口41(41a,41b)が設けられている。 [0028] Each compression element 20, the suction pipe 40 is inserted, the discharge ports 41 (41a, 41b) are provided.

【0029】従って、アキュムレータ7を介して機外から供給された冷媒は、吸入管40から第1圧縮要素20 [0029] Accordingly, the refrigerant supplied from the outside via the accumulator 7, the first compression element from the suction pipe 40 20
aと第2圧縮要素20bとに吸入され、ここで圧縮された後吐出口41から密閉容器10内に吐出され、吐出管45から機外に吐出されることになる。 It is sucked into the a second compression element 20b, where it is discharged from the discharge port 41 after being compressed in the sealed container 10, will be discharged to the outside from the discharge pipe 45.

【0030】第1圧縮要素20aと第2圧縮要素20b [0030] The first compression element 20a and the second compression element 20b
とは略同じ構成で、各圧縮要素20は円筒状のシリンダ21(21a,21b)を有し、このシリンダ21にローラ22(22a,22b)が配設されている。 Substantially the same configuration, each compression element 20 includes a cylindrical cylinder 21 (21a, 21b), the roller 22 (22a, 22b) is disposed in the cylinder 21 and.

【0031】このローラ22は円筒状に形成され、その内側にクランク23(23a,23b)が配設されると共に、ローラ22の外側面に図示しないベーンが当接している。 [0031] The roller 22 has a cylindrical shape, a crank 23 (23a, 23b) on its inner side with is provided, the vanes are in contact (not shown) on the outer surface of the roller 22.

【0032】クランク23は回転軸33に固着されて(又は一体形成されて)設けられているので、クランク23の回転によりローラ22は偏心回転運動するようになる。 [0032] Since the crank 23 is fixed to the rotary shaft 33 (or formed integrally) are provided, the roller 22 comes to eccentric rotation by the rotation of the crank 23.

【0033】このときローラ22における外側面の一端がシリンダ21と常に所定のクリアランスで接するので、シリンダ21とローラ22との間には三日月状の空間が形成される。 [0033] Since one end of the outer side surface in this case the roller 22 is in contact at all times with a predetermined clearance between the cylinder 21, the crescent-shaped space is formed between the cylinder 21 and the roller 22.

【0034】そして、ベーンがローラ22の外側面に当接しているので、このベーンにより三日月状の空間は図示しない吸入室と圧縮室とに区画される。 [0034] Since the vane is in contact with the outer surface of the roller 22, a crescent-shaped space by the vane is partitioned into a compression chamber and the suction chamber (not shown).

【0035】シリンダ21の内径及びローラ22の外径は変化しないので、ローラ22が回転しても三日月状の空間容積は常に一定である。 [0035] Since the outer diameter of the inner diameter and the roller 22 of the cylinder 21 does not change, crescent-shaped space volume even roller 22 rotates is always constant. しかしローラ22の回転に伴い、ローラ22とシリンダ21との接触位置が変化するため三日月状空間の向きが変化する。 But with the rotation of the roller 22, the orientation of the crescent-shaped space for the contact position between the roller 22 and the cylinder 21 is changed to change.

【0036】ところが、ベーンの位置は変化しないので、このベーンにより三日月状空間が区画されて形成される吸入室と圧縮室との容積比は、ローラ22の回転に従い変化し、吸入室の容積が拡張すると、圧縮室の容積は縮小して冷媒が圧縮されるようになる。 [0036] However, since the position of the vane is not changed, the volume ratio of the suction chamber and the compression chamber which is crescent-shaped space formed by being partitioned by the vane varies according the rotation of the roller 22, the volume of the suction chamber Extending the volume of the compression chamber is as a refrigerant is compressed by reducing.

【0037】吐出口41は、上部に配設されている第1 The discharge port 41 is first disposed on the top
圧縮要素20では上部のエンドキャップ11に向けて冷媒を吐出すように設けられ、下部に配設されている第2 Provided to discharge the coolant toward the end cap 11 of the compression element 20 upper, first it is arranged in the lower part 2
圧縮要素20ではシェル部12の底側に設けられているカップマフラ43に向けて冷媒を吐出すように設けられている。 It is provided so as to discharge the refrigerant toward the cup muffler 43 provided on the bottom side of the compression element 20 in the shell 12.

【0038】そして、吐出口41には図示しない吐出バルブが設けられており、圧縮室の縮小に伴い圧縮された冷媒が、この吐出バルブで規定される吐出圧に達すると吐出口41から密閉容器10内に吐出される。 [0038] Then, the discharge port 41 and discharge valve (not shown) is provided, the compressed refrigerant due to the reduction of the compression chamber, the sealed container from the discharge port 41 reaches the discharge pressure defined by the discharge valve It is discharged into the 10.

【0039】なお、各ローラ22は偏心回転運動する際に振動を発生するが、その振動を相殺するように、ローラ22aとローラ22bとの回転位相を180度ずらして設けている。 [0039] Incidentally, although each roller 22 generates vibrations when eccentric rotation, so as to cancel out the vibration is provided by shifting the rotational phase between the roller 22a and the roller 22b 180 degrees. 即ち、クランク23aとクランク23b In other words, crank 23a and the crank 23b
とは、回転軸33を中心に対称に設けられている。 And it is provided symmetrically about the rotary shaft 33.

【0040】このような構成で、上下に配設された吸入管40から冷媒が圧縮要素20に吸入され、当該圧縮要素20で圧縮されて吐出口41から密閉容器10内に吐出され、その後吐出管45から機外に吐出される。 [0040] In this construction, the refrigerant from the upper and lower disposed the suction pipe 40 is sucked into the compression element 20 is discharged into the sealed container 10 from the discharge port 41 is compressed in the compression element 20, then the discharge It is discharged from the tube 45 to the outside of the machine.

【0041】従って、密閉容器10内の圧力は吐出圧に等しく、このときHFC冷媒のように圧力が高くなる冷媒を用いると、隣接して吸入管40が設けられている部分Qの強度が弱くなり亀裂等が発生したりする。 [0041] Thus, the pressure inside the hermetic shell 10 is equal to the discharge pressure, the use of refrigerant pressure becomes higher as the time HFC refrigerant, the strength of the portion Q of the suction tube 40 adjacent is provided is weak It will crack or the like or to occur.

【0042】このような不都合に対して、本発明では吸入管40a,4bの間隔を広くすることにより耐圧特性を向上させるようにしている。 [0042] For such an inconvenience, the present invention is to improve the withstand voltage characteristics by widening the spacing of the suction tube 40a, 4b.

【0043】即ち、従来の吸入管40は圧縮要素20の中間位置に嵌合するように設けられている。 [0043] That is, the conventional suction pipe 40 is provided so as to fit in an intermediate position of the compression element 20. そこで本発明では、第1圧縮要素20aにおける吸入管40aの位置を駆動要素30側にずらし、第2圧縮要素20bにおける吸入管40bの位置をカップマフラ43側にずらして設けている。 In this invention, shifting the position of the suction pipe 40a in the first compression element 20a in the driving element 30 side, it is provided by shifting the position of the suction pipe 40b of the second compression element 20b to the cup muffler 43 side.

【0044】従って、各吸入管40は各圧縮要素20の中心位置からずれた位置で取付けられるようになるので、各吸入管40の間隔を広くすることができ、シェル部12の肉厚を厚くすることなく内圧上昇に対応することができるようになる。 [0044] Therefore, since each suction pipe 40 will be mounted at a position shifted from the center position of each compression element 20, it is possible to widen the interval between the suction pipe 40, increasing the thickness of the shell portion 12 it is possible to correspond to the increase in the internal pressure without.

【0045】図2に示す従来の構成では、圧縮要素12 [0045] In the conventional configuration shown in FIG. 2, the compression element 12
0の中間位置と吸入管140の中心位置とは一致し、吸入管140の隣接間隔がH1となっている。 Intermediate position 0 and coincide with the center position of the suction pipe 140, adjacent intervals of the suction pipe 140 has become H1. これに対し、図1に示す本発明の構成では、圧縮要素20の中間位置と吸入管40の中心位置とは位置ずれして設けられていて、吸入管40の隣接間隔をH2とするとH2>H In contrast, in the configuration of the present invention shown in FIG. 1, an intermediate position of the compression element 20 and the center position of the suction pipe 40 is provided at a position displaced, H2 when the distance between the adjacent suction pipe 40 and H2> H
1となっている。 And has a 1.

【0046】なお、上記説明では、2気筒ロータリ圧縮機は縦型であることを前提に説明したが、本発明はこれに限定されるものではなく横型であってもよいことは明らかである。 [0046] In the above description, two-cylinder rotary compressor has been described on the assumption that it is a vertical, the present invention is clear that it may be a horizontal type is not limited thereto.

【0047】 [0047]

【発明の効果】以上説明したように請求項1にかかる発明によれば、隣接する2つの圧縮要素に対応して設けられた2つの吸入管のなす間隔を各圧縮要素のなす間隔より広くなるように密閉容器に固着したので、密閉容器の肉厚を厚くしたりしないで耐圧特性が向上できるようになり、安全性及び信頼性が向上する。 According to the invention of claim 1 as described above, according to the present invention, comprising two forming intervals of the suction pipe provided in correspondence with the two adjacent compression element wider than the forming distance of each compression element Having secured a sealed container so, will be able to improve the withstand voltage characteristics without or increase the thickness of the sealed vessel, the safety and reliability is improved.

【0048】請求項2にかかる発明によれば、圧縮要素の中間位置からずれた位置に吸入管が嵌合して、圧縮要素の隣接間隔より大きな間隔で吸入管が隣接するようにしたので、密閉容器の肉厚を厚くしたりしないで耐圧特性が向上できるようになり、安全性及び信頼性が向上する。 [0048] According to the invention according to claim 2, the suction pipe is fitted to the offset from the intermediate position of the compression element position, the suction pipe with greater spacing than the distance between the adjacent compression element is so as to be adjacent, will be able to improve the withstand voltage characteristics without or increase the thickness of the sealed vessel, the safety and reliability is improved.

【0049】請求項3にかかる発明によれば、使用冷媒をHFC冷媒にしたので、オゾン層を破壊することなく、かつ、何らのコストアップをもたらすことなく安全性の高い圧縮機が提供可能になる。 [0049] According to the invention according to claim 3, since the refrigerant used was HFC refrigerants without destroying the ozone layer, and, as can be provided without highly safe compressor to bring any of the cost Become.

【0050】 [0050]

【図面の簡単な説明】 BRIEF DESCRIPTION OF THE DRAWINGS

【図1】本発明の実施の形態の説明に適用される2気筒ロータリ圧縮機の構成図である。 1 is a configuration diagram of a two-cylinder rotary compressor which is applied to description of the embodiments of the present invention.

【図2】従来の技術の説明に適用される2気筒ロータリ圧縮機の構成図である。 2 is a block diagram of a two-cylinder rotary compressor which is applied to the description of the prior art.

【符号の説明】 DESCRIPTION OF SYMBOLS

10(11,12) 密閉容器 20(20a,20b) 圧縮要素 30 駆動要素 40(40a,40b) 吸入管 41(41a,41b) 吐出口 10 (11, 12) sealed container 20 (20a, 20b) compression element 30 the drive element 40 (40a, 40b) suction pipe 41 (41a, 41b) the discharge port

フロントページの続き (72)発明者 沢辺 浩幸 大阪府守口市京阪本通2丁目5番5号 三 洋電機株式会社内 (72)発明者 二川目 緑 大阪府守口市京阪本通2丁目5番5号 三 洋電機株式会社内 (72)発明者 坂庭 正純 大阪府守口市京阪本通2丁目5番5号 三 洋電機株式会社内 Fターム(参考) 3H029 AA04 AA09 AA13 AA21 AB03 BB32 BB44 CC09 CC24 Of the front page Continued (72) inventor Hiroyuki Sawabe Osaka Prefecture Moriguchi Keihanhondori 2-chome No. 5 No. 5 Sanyo within Co., Ltd. (72) inventor Futakawame green Osaka Prefecture Moriguchi Keihanhondori 2-chome No. 5 5 issue Sanyo within Co., Ltd. (72) inventor Masazumi Sakaniwa Osaka Prefecture Moriguchi Keihanhondori 2-chome No. 5 No. 5, Sanyo electric Co., Ltd. in the F-term (reference) 3H029 AA04 AA09 AA13 AA21 AB03 BB32 BB44 CC09 CC24

Claims (3)

    【特許請求の範囲】 [The claims]
  1. 【請求項1】 冷媒を圧縮する圧縮要素が2つ隣接して設けられてなる圧縮手段と、該圧縮手段を駆動する駆動手段とが密閉容器に収納され、当該密閉容器に前記圧縮要素と嵌合する吸入管が固着されて冷媒を機外から前記圧縮要素に導き、当該圧縮要素で圧縮された冷媒が、密閉容器内に一旦吐出されてから機外に吐出されてなる2 And 1. A compression means compressing element for compressing a refrigerant is provided adjacent two, and drive means for driving the compression means are housed in a sealed container, fitted with the compression element in the sealed container is fixed suction pipe for engagement by guiding the refrigerant from the outside to the compression element, the refrigerant compressed in the compression element is comprised of is once discharged into the sealed container is discharged out of the apparatus 2
    気筒ロータリ圧縮機において、 隣接する2つの前記圧縮要素に対応して設けられた2つの前記吸入管を各圧縮要素の隣接間隔より広くなるように前記密閉容器に固着したことを特徴とする2気筒ロータリ圧縮機。 In-cylinder rotary compressor, 2, characterized in that fixed to the closed container so that two of said suction pipe provided in correspondence to adjacent two of said compression element is wider than the adjacent interval between the compression element cylinder rotary compressor.
  2. 【請求項2】 前記圧縮要素が概略円筒状に形成され、 Wherein said compression element is formed in a substantially cylindrical,
    その側辺の中間位置からずれた位置に前記吸入管が嵌合して、前記圧縮要素の隣接間隔より大きな間隔で前記吸入管が隣接するようにしたことを特徴とする請求項1記載の2気筒ロータリ圧縮機。 Said suction pipe is fitted at a position displaced from the intermediate position of its sides, according to claim 1 2, wherein the suction pipe with greater spacing than the adjacent interval of the compression element is characterized in that the adjacent cylinder rotary compressor.
  3. 【請求項3】 前記冷媒がHFC冷媒であることを特徴とする請求項1又は2記載の2気筒ロータリ圧縮機。 3. A two-cylinder rotary compressor according to claim 1 or 2, wherein said refrigerant is a HFC refrigerant.
JP27880399A 1999-09-30 1999-09-30 Two-cylinder rotary comperssor Pending JP2001099083A (en)

Priority Applications (1)

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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004109113A1 (en) * 2003-06-10 2004-12-16 Daikin Industries, Ltd. Rotary fluid machinery
JP2008038862A (en) * 2006-08-10 2008-02-21 Daikin Ind Ltd Compressor
EP1985860A2 (en) 2007-04-27 2008-10-29 Fujitsu General Limited Rotary compressor
US20100147013A1 (en) * 2007-08-28 2010-06-17 Toshiba Carrier Corporation Multi-cylinder rotary compressor and refrigeration cycle equipment
US8206139B2 (en) 2007-08-28 2012-06-26 Toshiba Carrier Corporation Rotary compressor and refrigeration cycle equipment
CN102678554A (en) * 2011-03-10 2012-09-19 三菱电机株式会社 Rotary compressor
US8635884B2 (en) 2009-09-11 2014-01-28 Toshiba Carrier Corporation Multi-cylinder rotary compressor and refrigeration cycle apparatus
JP2014190267A (en) * 2013-03-27 2014-10-06 Mitsubishi Electric Corp Rotary compressor
CN106415015A (en) * 2014-07-25 2017-02-15 东芝开利株式会社 Compressor and refrigeration cycle device

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7563084B2 (en) 2003-06-10 2009-07-21 Daikin Industries, Ltd. Rotary fluid machine
EP1640614A1 (en) * 2003-06-10 2006-03-29 Daikin Industries, Ltd. Rotary fluid machinery
EP1640614A4 (en) * 2003-06-10 2011-04-20 Daikin Ind Ltd Rotary fluid machinery
WO2004109113A1 (en) * 2003-06-10 2004-12-16 Daikin Industries, Ltd. Rotary fluid machinery
JP4552910B2 (en) * 2006-08-10 2010-09-29 ダイキン工業株式会社 Compressor
JP2008038862A (en) * 2006-08-10 2008-02-21 Daikin Ind Ltd Compressor
EP1985860A2 (en) 2007-04-27 2008-10-29 Fujitsu General Limited Rotary compressor
US20100147013A1 (en) * 2007-08-28 2010-06-17 Toshiba Carrier Corporation Multi-cylinder rotary compressor and refrigeration cycle equipment
US8182253B2 (en) * 2007-08-28 2012-05-22 Toshiba Carrier Corporation Multi-cylinder rotary compressor and refrigeration cycle equipment
US8206139B2 (en) 2007-08-28 2012-06-26 Toshiba Carrier Corporation Rotary compressor and refrigeration cycle equipment
US8635884B2 (en) 2009-09-11 2014-01-28 Toshiba Carrier Corporation Multi-cylinder rotary compressor and refrigeration cycle apparatus
CN102678554A (en) * 2011-03-10 2012-09-19 三菱电机株式会社 Rotary compressor
JP2014190267A (en) * 2013-03-27 2014-10-06 Mitsubishi Electric Corp Rotary compressor
CN106415015A (en) * 2014-07-25 2017-02-15 东芝开利株式会社 Compressor and refrigeration cycle device

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