JP2005163744A - Accumulator - Google Patents

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Publication number
JP2005163744A
JP2005163744A JP2003407217A JP2003407217A JP2005163744A JP 2005163744 A JP2005163744 A JP 2005163744A JP 2003407217 A JP2003407217 A JP 2003407217A JP 2003407217 A JP2003407217 A JP 2003407217A JP 2005163744 A JP2005163744 A JP 2005163744A
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JP
Japan
Prior art keywords
baffle plate
accumulator
refrigerant
discharge pipe
discharge pipes
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Pending
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JP2003407217A
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Japanese (ja)
Inventor
Hideyuki Horibatake
秀幸 堀畑
Hiroshi Matsunaga
寛 松永
Manabu Sakai
学 阪井
Toshiharu Nozu
敏治 野洲
Yoshihiko Wakasa
好彦 若狭
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Panasonic Holdings Corp
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Matsushita Electric Industrial Co Ltd
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Application filed by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP2003407217A priority Critical patent/JP2005163744A/en
Publication of JP2005163744A publication Critical patent/JP2005163744A/en
Pending legal-status Critical Current

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  • Applications Or Details Of Rotary Compressors (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To enhance the liquid separation function of a refrigerant flowing in an accumulator and to improve the function of preventing the liquid refrigerant from flowing in a compression element of a compressor. <P>SOLUTION: A baffle plate is arranged between a suction pipe at the top portion of the accumulator and a discharge pipe for discharging the refrigerant which extends upwards from the lowermost portion to the upper portion within a container, the baffle plate having a plurality of holes. The baffle plate is provided with a smoothly downwardly extending stepped portion at the hole toward the outer periphery of the baffle plate. The baffle plate is arranged such that an opening at the upper end of the discharge pipe is covered with a center of the baffle plate with no holes and the step. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

本発明は、空気調和機等の冷凍装置に使用されるコンプレッサ用アキュムレータに関し、アキュムレータに吸込んだ液冷媒を1シリンダ形だけでなく、2シリンダ形のロータリコンプレッサの圧縮要素にも吸入し難くしたアキュムレータに関するものである。   TECHNICAL FIELD The present invention relates to an accumulator for a compressor used in a refrigeration apparatus such as an air conditioner, and an accumulator that makes it difficult for liquid refrigerant sucked into an accumulator to be sucked not only into a single cylinder type but also into a compression element of a two cylinder type rotary compressor. It is about.

従来のアキュムレータの構造としては、図6及び図7に示すように、上下の端を大きな丸みを持たせた絞り形状をもつ筒状密閉容器1と、その上部中央に冷媒を吸入する吸入管2、最下部より容器を貫通し内部上方まで立ち上がる冷媒吐出用の吐出管31a、31bが設けられ、さらに吸入管2と吐出管31a、31b上端との間に、上側にメッシュ状で凸面形のフィルタ4と、下側に吐出管31a、31b上端の開口部31cが重なる位置にならないよう設けられた複数の孔61を有するバッフルプレート52が設けられている。   As shown in FIGS. 6 and 7, the conventional accumulator has a cylindrical sealed container 1 having a throttle shape with upper and lower ends rounded, and a suction pipe 2 for sucking refrigerant into the center of the upper part thereof. Discharge pipes 31a and 31b for discharging refrigerant that pass through the container from the bottom and rise to the upper inside are provided, and further, a mesh-like convex filter on the upper side between the suction pipe 2 and the upper ends of the discharge pipes 31a and 31b. 4 and a baffle plate 52 having a plurality of holes 61 provided on the lower side so that the openings 31c at the upper ends of the discharge pipes 31a and 31b do not overlap.

以上のような構造により筒状密閉容器1、上部中央の吸入管2より流入した冷媒は、フィルタ4により冷媒に混入しているゴミ等の異物が除去され、次にバッフルプレート52に当たり、バッフルプレート52に設けられた孔61を通過することでガス冷媒と液冷媒に分離される。吐出管31a、31b上端の開口部31cにはガス冷媒のみが流入し、液冷媒は密閉容器1下部に溜まり、気化後に吐出管31a、31b開口部31cより流入される。   The refrigerant flowing in from the cylindrical sealed container 1 and the upper central suction pipe 2 by the structure as described above removes foreign matters such as dust mixed in the refrigerant by the filter 4, then hits the baffle plate 52, and the baffle plate The gas refrigerant and the liquid refrigerant are separated by passing through a hole 61 provided in 52. Only the gas refrigerant flows into the opening 31c at the upper end of the discharge pipes 31a and 31b, and the liquid refrigerant accumulates in the lower part of the hermetic container 1 and flows into the opening 31c of the discharge pipes 31a and 31b after vaporization.

図6及び図7に記載された2シリンダ形ロータリコンプレッサのアキュムレータでは、吐出管31a、31bの開口部31c端面を、それぞれの中心軸線に対して傾斜して開口させている。これにより、前記の液分離機能に影響を与えることなく、さらに騒音の低減を図ることができる構成となっている(例えば、特許文献1参照)。
特開2003−227486号公報
In the accumulator of the two-cylinder rotary compressor described in FIG. 6 and FIG. Thereby, it becomes the structure which can aim at reduction of noise further, without affecting the said liquid separation function (for example, refer patent document 1).
JP 2003-227486 A

しかしながら前記、特許文献1記載の2シリンダ形ロータリコンプレッサのアキュムレータでは、バッフルプレート52の形状が1シリンダ形ロータリコンプレッサのアキュムレータと同様であるため、孔61が配されていないバッフルプレート中央部5aの盛り上がり領域が吐出管1本用に対応しており、2シリンダ形ロータリコンプレッサ用の吐出管31a、31bの2本の場合には、バッフルプレート中央部5aの盛り上がり領域が小さく、盛り上がった中央部5aで吐出管31a、31b開口部31cを覆うようにバッフルプレート52の配置ができず、吐出管31a、31b開口部31c周りに最適な冷媒の吸入空間を保つため、等でバッフルプレート52を上方もしくは、吐出管31a、31cを下方に離し距離を取らなければならない。この場合、距離を取った分だけ液分離機能の低下が考えられ、また、吐出管31a、31bの長さを短かくした場合はアキュムレータの有効受液体積も減少するため、さらに液分離機能の悪化になる可能性があるという課題を有していた。   However, in the accumulator of the two-cylinder rotary compressor described in Patent Document 1, since the shape of the baffle plate 52 is the same as that of the accumulator of the one-cylinder rotary compressor, the baffle plate central portion 5a where the hole 61 is not arranged is raised. The area corresponds to one discharge pipe, and in the case of two discharge pipes 31a and 31b for a two-cylinder rotary compressor, the raised area of the baffle plate central part 5a is small, and the raised central part 5a The baffle plate 52 cannot be disposed so as to cover the discharge pipes 31a and 31b, and the baffle plate 52 is moved upward or in order to maintain an optimal refrigerant suction space around the discharge pipes 31a and 31b. If the discharge pipes 31a and 31c are separated downward and the distance is not kept No et al. In this case, the liquid separation function can be lowered by the distance, and the effective liquid receiving volume of the accumulator is reduced when the length of the discharge pipes 31a and 31b is shortened. Had a problem that could get worse.

またアキュムレータ内での圧力損失低減や冷媒流速の急変動低減のために吐出管31a、31b上端の開口部31c面積を拡大する場合においても吐出管31a、31bの径の拡大、および吐出管31a、31bの開口部31c端面を、それぞれの中心軸線に対して傾斜して開口させる等の構成では、さらに液分離機能の悪化の可能性が考えられ特性改善のする上でも課題を有していた。   Further, when the area of the opening 31c at the upper end of the discharge pipes 31a and 31b is increased in order to reduce the pressure loss in the accumulator and the rapid fluctuation of the refrigerant flow rate, the diameter of the discharge pipes 31a and 31b is increased, and the discharge pipes 31a and 31b In the configuration in which the end surface of the opening 31c of 31b is inclined and opened with respect to each central axis, there is a possibility that the liquid separation function may be further deteriorated, and there is a problem in improving the characteristics.

本発明は、前記従来の課題を解決するもので、従来の騒音等の特性を確保しつつ、液分離機能を向上させることができるコンプレッサ用アキュムレータを提供することを目的としている。   The present invention solves the above-described conventional problems, and an object thereof is to provide a compressor accumulator capable of improving a liquid separation function while ensuring characteristics such as conventional noise.

前記従来の課題を解決するために、本発明のコンプレッサ用アキュムレータは、バッフルプレートの孔の部分に、バッフルプレートの外周に向う、滑らかに盛り下がった、段差を付け、バッフルプレートの孔のあいていない中央部と滑らかに盛り下がった段差で、吐出管上端の開口部を覆うようにした構成となっている。   In order to solve the above-described conventional problems, an accumulator for a compressor according to the present invention has a baffle plate hole portion that is smoothly raised and stepped toward the outer periphery of the baffle plate so that the baffle plate hole is not formed. It has a configuration in which the opening at the upper end of the discharge pipe is covered with a step that smoothly rises from the center that is not present.

これによって、1本もしくは2本の吐出管上端の開口部は、滑らかに盛り下がった段差の傘に完全に覆われるかたちとなり、最適な空間容積を保ちつつ、位置的にもバッフルプレートに近づけることができ、液分離機能を向上させることができると共に、吐出管の径拡大等による開口部面積の従来(開口部を傾斜断面にした面積拡大)比、同等確保が容易となり、従来同等の冷媒の圧力損失低減および、急激な断面積変化に伴う流速変化による騒音低減効果を得ることができる。   As a result, the opening at the upper end of one or two discharge pipes is completely covered with a smoothly raised stepped umbrella, and is positioned close to the baffle plate while maintaining an optimal space volume. It is possible to improve the liquid separation function, and it becomes easy to ensure the same ratio of the opening area by expanding the diameter of the discharge pipe, etc. It is possible to obtain a noise reduction effect due to pressure loss reduction and flow velocity change accompanying a rapid change in cross-sectional area.

本発明のコンプレッサ用アキュムレータは、前記構成を有し、アキュムレータに流入する冷媒の液分離機能を高め、コンプレッサの圧縮要素への液冷媒流入防止機能を向上させることができる。   The compressor accumulator of the present invention has the above-described configuration, can enhance the liquid separation function of the refrigerant flowing into the accumulator, and can improve the function of preventing the liquid refrigerant from flowing into the compression element of the compressor.

以下、本発明の実施の形態を、図面を参照しながら説明する。   Hereinafter, embodiments of the present invention will be described with reference to the drawings.

図5は、アキュムレータ付き縦型2シリンダ形ロータリーコンプレッサを示す図である。図5において、8が縦型2シリンダ形ロータリコンプレッサであって、密閉容器内には、下方に回転により冷媒ガスを圧縮するロータリ式の圧縮要素と、上方にその圧縮要素を回転駆動する電動要素とを配置している。   FIG. 5 is a view showing a vertical two-cylinder rotary compressor with an accumulator. In FIG. 5, reference numeral 8 denotes a vertical two-cylinder rotary compressor, and a rotary type compression element that compresses refrigerant gas by rotating downward and an electric element that rotationally drives the compression element upward in a sealed container. And are arranged.

7がアキュムレータであって、取付金具9によって、ロータリコンプレッサ8の側壁に立てて固定され、アキュムレータ7は吸入管2から吸入された冷媒をガス冷媒と液冷媒に分離し吐出管3a、3bよりガス冷媒を圧縮要素へ送りこんでいる。   Reference numeral 7 denotes an accumulator, which is fixed to the side wall of the rotary compressor 8 by a mounting bracket 9, and the accumulator 7 separates the refrigerant sucked from the suction pipe 2 into a gas refrigerant and a liquid refrigerant, and gas is discharged from the discharge pipes 3a and 3b. Refrigerant is sent to the compression element.

(実施の形態1)
図1は、本発明の実施の形態1におけるアキュムレータの断面図、図2は図1におけるA方向から見たバッフルプレートと吐出管開口部の位置関係図である。
(Embodiment 1)
FIG. 1 is a cross-sectional view of an accumulator according to Embodiment 1 of the present invention, and FIG.

図1及び図2に示すように、筒状密閉容器1には、その上部に冷媒を吸入する吸入管2と、最下部より容器1を貫通し内部上方まで立ち上がる冷媒吐出用の吐出管3a、3bを有し、さらに吸入管2と吐出管3a、3b上端との間には、上側にフィルタ4と、下側に複数の孔6を有するバッフルプレート5が設けられており、バッフルプレート5は、孔6の部分に、バッフルプレート5の外周に向う、滑らかに盛り下がった、段差5bを付け、バッフルプレートの孔のあいていない中央部と滑らかに盛り下がった段差5bで、吐出管上端の開口部3cを覆うようにした構成となしている。   As shown in FIGS. 1 and 2, the cylindrical sealed container 1 includes a suction pipe 2 for sucking a refrigerant in an upper part thereof, and a discharge pipe 3 a for discharging a refrigerant that penetrates the container 1 from the lowermost part and rises up to the inside. 3b, and a baffle plate 5 having a filter 4 on the upper side and a plurality of holes 6 on the lower side is provided between the suction pipe 2 and the upper ends of the discharge pipes 3a and 3b. The hole 6 is provided with a step 5b that smoothly rises toward the outer periphery of the baffle plate 5, and the center of the baffle plate where the hole is not formed and the step 5b that rises smoothly It is set as the structure which covered the opening part 3c.

かかる構成によれば、1本もしくは2本の吐出管3上端の開口部3cは、滑らかに盛り下がった段差5bの傘に完全に覆われるかたちとなり、吐出管3a、3bの冷媒吸入に最適な空間容積を保ちつつ、位置的にバッフルプレート5に近づけることができ液分離機能を向上させることができると共に、吐出管3a、3bの径拡大等による、従来同等の開口
部3c面積確保が容易となり、従来同等の冷媒の圧力損失低減および、急激な断面積変化に伴う流速変化による騒音低減効果を得ることができる。
According to such a configuration, the opening 3c at the upper end of one or two discharge pipes 3 is completely covered with the umbrella of the step 5b that is smoothly raised, and is optimal for refrigerant suction of the discharge pipes 3a and 3b. While maintaining the space volume, it can be positioned close to the baffle plate 5 and the liquid separation function can be improved, and the area of the opening 3c equivalent to the conventional one can be secured easily by expanding the diameter of the discharge pipes 3a and 3b. In addition, it is possible to obtain a pressure loss reduction effect of a refrigerant equivalent to that in the prior art and a noise reduction effect due to a flow velocity change accompanying a sudden change in cross-sectional area.

なお前記、実施の形態1は吐出管が2本の2シリンダ形のタイプのもので説明したが、これに限定されるものではなく、吐出管が1本の1シリンダ形のタイプの場合においても同様な効果作用を得ることができる。   Although the first embodiment has been described with the two-cylinder type having two discharge pipes, the present invention is not limited to this, and even in the case of the one-cylinder type with one discharge pipe. Similar effects can be obtained.

(実施の形態2)
図3は、本発明第2の実施形態におけるアキュムレータの断面図、図4は図3におけるA方向から見たバッフルプレートと吐出管開口部の位置関係図である。
(Embodiment 2)
FIG. 3 is a cross-sectional view of an accumulator according to the second embodiment of the present invention, and FIG.

図3及び図4に示すように、バッフルプレート51以外は実施の形態1と同一構成で、バッフルプレート51には段差51bを孔6の全てにではなく、吐出管3a、3b上端の開口部3cにかかる部分のみ2ヶ所設けた構成となっている。   As shown in FIGS. 3 and 4, except for the baffle plate 51, the configuration is the same as that of the first embodiment, and the baffle plate 51 has a step 51 b not at all of the holes 6 but at the opening 3 c at the upper ends of the discharge pipes 3 a and 3 b. Only the portion related to is provided in two locations.

かかる構成によれば、実施の形態1の作用効果と同様な効果を得ることができるとともに、バッフルプレートの形状をシンプルにすることができる。   According to this configuration, it is possible to obtain the same effect as that of the first embodiment, and it is possible to simplify the shape of the baffle plate.

なお前記、実施の形態2は吐出管が2本の2シリンダ形のタイプのものを例にしているが、これに限定されるものではなく、吐出管が1本の1シリンダ形のタイプの場合においても同様な効果作用を得ることができる。   The second embodiment is an example of a two-cylinder type with two discharge pipes. However, the present invention is not limited to this, and a single-cylinder type with one discharge pipe is used. A similar effect can be obtained also in.

本発明のコンプレッサ用アキュムレータは、2シリンダ形、1シリンダ形に関わらずアキュムレータを有する、あらゆるコンプレッサに適応が可能である。   The compressor accumulator of the present invention can be applied to any compressor having an accumulator regardless of the two-cylinder type or the one-cylinder type.

本発明第1の実施形態におけるアキュムレータの縦断面図The longitudinal cross-sectional view of the accumulator in the 1st Embodiment of this invention 図1におけるA方向から見たバッフルプレートと吐出管開口部の位置関係図Positional view of baffle plate and discharge pipe opening as seen from direction A in Fig. 1 本発明第2の実施形態におけるアキュムレータの縦断面図Longitudinal sectional view of an accumulator in the second embodiment of the present invention 図3におけるA方向から見たバッフルプレートと吐出管開口部の位置関係図Positional relationship diagram of baffle plate and discharge pipe opening as seen from direction A in FIG. 従来のアキュムレータ付き縦型2シリンダ形ロータリーコンプレッサの図Figure of conventional vertical 2-cylinder rotary compressor with accumulator 従来のアキュムレータの縦断面図Longitudinal section of a conventional accumulator 図6におけるA方向から見たバッフルプレートと吐出管開口部の位置関係図Positional relationship diagram of baffle plate and discharge pipe opening as seen from direction A in FIG.

符号の説明Explanation of symbols

1 筒状密閉容器
2 吸入管
3a 吐出管
3b 吐出管
3c 吐出管開口部
4 フィルター
5 バッフルプレート
5a バッフル中央部
5b 段差
6 孔
7 アキュムレータ
8 縦型2シリンダ形ロータリコンプレッサ
9 取付金具
DESCRIPTION OF SYMBOLS 1 Cylindrical airtight container 2 Suction pipe 3a Discharge pipe 3b Discharge pipe 3c Discharge pipe opening part 4 Filter 5 Baffle plate 5a Baffle center part 5b Step 6 Hole 7 Accumulator 8 Vertical 2 cylinder type rotary compressor 9 Mounting bracket

Claims (2)

筒状密閉容器の上部中央に冷媒を吸入する吸入管を、最下部より前記容器を貫通し内部上方まで立ち上がる冷媒吐出用の吐出管を1本以上と、前記吸入管と吐出管上端との間に複数の孔を有するバッフルプレートとを設けているアキュムレータにおいて、前記バッフルプレートの孔の部分に、前記バッフルプレートの外周に向う、滑らかに盛り下がった、段差を付け、前記バッフルプレートの孔のあいていない中央部と前記段差で前記吐出管上端の開口部を覆うようにしたことを特徴とするアキュムレータ。 Between the suction pipe and the upper end of the discharge pipe, there is a suction pipe for sucking the refrigerant in the upper center of the cylindrical airtight container, one or more discharge pipes for discharging the refrigerant that penetrates the container from the bottom and rises upward in the interior. In the accumulator provided with a baffle plate having a plurality of holes in the baffle plate, a step is formed in the hole portion of the baffle plate that is smoothly raised and raised toward the outer periphery of the baffle plate. An accumulator characterized in that the opening at the upper end of the discharge pipe is covered with the central portion not formed and the step. 前記バッフルプレートに、前記段差を2ヶ所以上設けたことを特徴とする請求項1に記載のアキュムレータ。
The accumulator according to claim 1, wherein the baffle plate is provided with two or more steps.
JP2003407217A 2003-12-05 2003-12-05 Accumulator Pending JP2005163744A (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100453930C (en) * 2005-10-25 2009-01-21 三星电子株式会社 Accumulator for compressor
JP2013113508A (en) * 2011-11-29 2013-06-10 Denso Corp Accumulator
CN105829822A (en) * 2013-12-13 2016-08-03 日本电气株式会社 Refrigerant distribution device and cooling device
CN106895614A (en) * 2015-12-18 2017-06-27 珠海凌达压缩机有限公司 Compressor and its knockout

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100453930C (en) * 2005-10-25 2009-01-21 三星电子株式会社 Accumulator for compressor
JP2013113508A (en) * 2011-11-29 2013-06-10 Denso Corp Accumulator
US9541316B2 (en) 2011-11-29 2017-01-10 Denso Corporation Accumulator
CN105829822A (en) * 2013-12-13 2016-08-03 日本电气株式会社 Refrigerant distribution device and cooling device
JPWO2015087530A1 (en) * 2013-12-13 2017-03-16 日本電気株式会社 Refrigerant distribution device and cooling device
US10215456B2 (en) 2013-12-13 2019-02-26 Nec Corporation Refrigerant distribution device and cooling apparatus
CN106895614A (en) * 2015-12-18 2017-06-27 珠海凌达压缩机有限公司 Compressor and its knockout
CN106895614B (en) * 2015-12-18 2022-07-08 珠海凌达压缩机有限公司 Compressor and liquid distributor thereof

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