JPH03107594A - Silencer of compressor - Google Patents
Silencer of compressorInfo
- Publication number
- JPH03107594A JPH03107594A JP24427889A JP24427889A JPH03107594A JP H03107594 A JPH03107594 A JP H03107594A JP 24427889 A JP24427889 A JP 24427889A JP 24427889 A JP24427889 A JP 24427889A JP H03107594 A JPH03107594 A JP H03107594A
- Authority
- JP
- Japan
- Prior art keywords
- pressure chamber
- high pressure
- discharge pipe
- closed container
- refrigerant
- 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.)
- Granted
Links
- 230000003584 silencer Effects 0.000 title claims description 3
- 239000003507 refrigerant Substances 0.000 claims abstract description 24
- 230000006835 compression Effects 0.000 claims abstract description 10
- 238000007906 compression Methods 0.000 claims abstract description 10
- 238000005192 partition Methods 0.000 claims description 13
- 230000010349 pulsation Effects 0.000 abstract description 13
- 230000002238 attenuated effect Effects 0.000 abstract description 7
- 230000010355 oscillation Effects 0.000 abstract 1
- 238000000638 solvent extraction Methods 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 2
- 239000012530 fluid Substances 0.000 description 1
- 230000030279 gene silencing Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Rotary Pumps (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
Abstract
Description
【発明の詳細な説明】 （イ）産業上の利用分野 この発明は圧縮機の消音装置の改良に関する。[Detailed description of the invention] (b) Industrial application field This invention relates to an improvement in a noise reduction device for a compressor.
（ロ）従来の技術
従来一般の圧縮機は密閉容器内の圧縮要素で圧縮された
冷媒の圧力脈動によって発生ずる騒音を、この圧縮要素
に設けたマフラで消音し、前記冷媒を密閉容器内を介し
て吐出管から外部に吐出している（実公昭５２−２３１
０号公報参照）。(B) Prior art Conventional compressors use a muffler installed in the compression element to muffle the noise generated by the pressure pulsations of the refrigerant compressed by the compression element in the hermetic container. It is discharged to the outside from the discharge pipe through the
(See Publication No. 0).
（ハ）発明が解決しようとする課題
しかしながら、従来の圧縮機は密閉容器内を介して吐出
管から外部に吐出される直前の冷媒を消音することなく
そのまま吐出するため、マフラ自体での消音が不十分で
あったり、マフラを取付げたことによる騒音、すなわち
とのマフラ内で発生ずる共振騒音による圧力脈動がある
と、吐出管を介して外部に騒音が直接体わる問題があっ
た。(C) Problems to be Solved by the Invention However, conventional compressors discharge the refrigerant directly before being discharged from the discharge pipe to the outside through the airtight container without silencing the sound, so the muffler itself is unable to silo the refrigerant. If the muffler is insufficient or there is noise due to the muffler installation, that is, pressure pulsations due to resonance noise generated within the muffler, there is a problem in that the noise is directly transmitted to the outside through the discharge pipe.
この発明は上記の問題を解決するもので、密閉容器内か
ら吐出管を介して外部に吐出される冷媒の圧力脈動を吐
出管自体で減衰できるようにした圧縮機の消音装置を提
供することを目的としたものである。The present invention solves the above-mentioned problem, and aims to provide a silencer for a compressor that is capable of attenuating the pressure pulsations of refrigerant discharged from the inside of a closed container to the outside through a discharge pipe, using the discharge pipe itself. This is the purpose.
（ニ）課題を解決するための手段
この発明は密閉容器と、この容器内に収納された圧縮要
素とを有し、この圧縮要素で圧縮された冷媒を、密閉容
器内の高圧室を介してこの容器に取付けた吐出管から吐
出した圧縮機において、前記吐出管に密閉容器内の高圧
室内に延びた尾管を設け、この尾管内を仕切壁で区画し
、かつ、この仕切壁と密閉容器との間の尾管に高圧室に
連通ずる連通穴を設けたものである。(D) Means for Solving the Problems This invention has a closed container and a compression element housed in the container, and the refrigerant compressed by the compression element is passed through a high pressure chamber in the closed container. In a compressor that discharges from a discharge pipe attached to this container, the discharge pipe is provided with a tail pipe extending into a high pressure chamber in a closed container, the inside of this tail pipe is divided by a partition wall, and the partition wall and the closed container are A communication hole is provided in the tail pipe between the two and the high pressure chamber.
（ホ）作用
この発明は上記のように構成したことにより、密閉容器
内の高圧室内に延びた吐出管の尾管に仕切壁を設け、こ
の内部に仕切壁でサイドブランチ型の共鳴マフラを複数
形成し、密閉容器内の高圧室から外部に吐出される冷媒
の圧力脈動成分を尾管内で減衰して外部に騒音が発生し
ないようにしたものである。(e) Effect By having the above-described structure, this invention provides a partition wall in the tail pipe of the discharge pipe extending into the high pressure chamber in the closed container, and a plurality of side branch type resonance mufflers are installed inside the partition wall using the partition wall. The pressure pulsation component of the refrigerant discharged to the outside from the high-pressure chamber in the closed container is attenuated in the tail pipe to prevent noise from being generated outside.
くへ）実施例
以下この発明を第１図及び第２図に示す実施例に基いて
説明する。Example) The present invention will be explained below based on the example shown in FIGS. 1 and 2.
１は密閉容器で、この容器内には上側にスクロール圧縮
機部２が、下側にこの圧縮機部を駆動する電動機部３が
夫々収納されている。４はフレームで、このフレームに
は中央に回転軸５を軸支する軸受部６が設けられている
。スクロール圧縮機部２は固定スクロール７と揺動スク
ロール８とで構成されている。固定スクロール７は密閉
容器１内壁に圧接してこの容器内を高圧室９と低圧室１
０とに区画する円板状の鏡板１１と、この鏡板の一方の
面周縁に突出された環状壁１２と、この環状壁で囲まれ
鏡板１１に立設されたインボリュート状またはこれに近
似の曲線からなる渦巻き状のラップ１３とで構成されて
いる。固定スクロール７の鏡板１１には密閉容器１内の
高圧室９に連通ずる吐出孔１４が設けられている。そし
て、固定スクロール７は環状壁１２及びラップ１３の突
出方向を下方としている。揺動スクロール８は円板状の
鏡板１５と、この鏡板の一方の面に立設されたインボリ
ュート状またはこれに近似の曲線からなる渦巻き状のラ
ップ１６と、鏡板１５の他方の面の中央に突出されたピ
ン部１７とで構成されている。そして、揺動スクロール
８はラップ１６の突出方向を上方として、このラップが
固定スクロール７のラップ１３に向かい合ってかみ合う
ようにして内部に複数の圧縮空間１８を形成するように
している。１９は回転軸５の先端に設けられて揺動スク
ロール８のピン部１７を挿入するボス穴で、このボス穴
の中心は回転軸５の軸心と偏心して設けられている。２
０は固定スクロール７に対して揺動スクロール８を自転
しないように円軌道上を公転させるオルダム継手である
。フレーム４の外周にはスクロール圧縮機部２に冷媒を
導く吸込通路２１が設けられている。２２は密閉容器１
に取付けられた吸込管で、この吸込管は電動機部３の下
方で密閉容器１内の低圧室１０に連通している。Reference numeral 1 denotes a closed container, in which a scroll compressor section 2 is housed on the upper side, and an electric motor section 3 for driving the compressor section is housed on the lower side. Reference numeral 4 denotes a frame, and this frame is provided with a bearing portion 6 for pivotally supporting a rotating shaft 5 at the center thereof. The scroll compressor section 2 is composed of a fixed scroll 7 and an oscillating scroll 8. The fixed scroll 7 is in pressure contact with the inner wall of the closed container 1, and the inside of this container is divided into a high pressure chamber 9 and a low pressure chamber 1.
0, an annular wall 12 projecting from the periphery of one side of the mirror plate, and an involute-shaped or similar curved line surrounded by the annular wall and erected on the mirror plate 11. It is composed of a spiral wrap 13 consisting of. The end plate 11 of the fixed scroll 7 is provided with a discharge hole 14 communicating with the high pressure chamber 9 inside the closed container 1. The fixed scroll 7 has the annular wall 12 and the wrap 13 projecting downward. The oscillating scroll 8 includes a disk-shaped end plate 15, a spiral wrap 16 formed of an involute shape or a curved line approximating the involute, which is provided upright on one side of the end plate, and a spiral wrap 16 in the center of the other side of the end plate 15. It is composed of a protruding pin portion 17. The oscillating scroll 8 is configured such that the projecting direction of the wrap 16 is upward, and the wrap faces and engages with the wrap 13 of the fixed scroll 7 to form a plurality of compression spaces 18 inside. Reference numeral 19 denotes a boss hole provided at the tip of the rotating shaft 5 into which the pin portion 17 of the swinging scroll 8 is inserted, and the center of this boss hole is provided eccentrically from the axis of the rotating shaft 5. 2
0 is an Oldham joint that revolves the oscillating scroll 8 on a circular orbit relative to the fixed scroll 7 without rotating. A suction passage 21 for guiding refrigerant to the scroll compressor section 2 is provided on the outer periphery of the frame 4 . 22 is airtight container 1
This suction pipe is connected to a low pressure chamber 10 in the closed container 1 below the motor section 3.
２３は密閉容器１の土壁に取付けられた吐出管で、この
吐出管は密閉容器１内の高圧室９に連通している。吐出
管２３には密閉容器１内の高圧室９に延びる尾管２４が
設けられている。この尾管は内部を仕切壁２５で一方の
空間２６を吐出管２３内に連通させ、他方の空間２７を
高圧室９内に連通するように区画している。２８は尾管
２４に設けた連通穴で、この連通穴は仕切壁２５と密閉
容器１との間に設けられ、空間２６と高圧室９とを連通
している。Reference numeral 23 denotes a discharge pipe attached to the earthen wall of the closed container 1, and this discharge pipe communicates with the high pressure chamber 9 inside the closed container 1. The discharge pipe 23 is provided with a tail pipe 24 extending to the high pressure chamber 9 inside the closed container 1. The inside of this tail pipe is divided by a partition wall 25 so that one space 26 communicates with the discharge pipe 23 and the other space 27 communicates with the high pressure chamber 9. Reference numeral 28 denotes a communication hole provided in the tail pipe 24, and this communication hole is provided between the partition wall 25 and the closed container 1, and communicates the space 26 with the high pressure chamber 9.
このように構成されたスクロール圧縮機において、電動
機部３を回転させると、その回転力が回転軸５を介して
揺動スクロール８に伝えられる。In the scroll compressor configured in this manner, when the electric motor section 3 is rotated, its rotational force is transmitted to the oscillating scroll 8 via the rotating shaft 5.
すなわち、揺動スクロール８は回転軸５のボス穴１９に
この回転軸の軸心に対して偏心して挿入されたピン部１
７で駆動され、オルダム継手２０で固定スクロール７に
対して自転しないように円軌道上を公転させられる。そ
して、固定スクロール７と揺動スクロール８とはこれら
のスクロールで形成された圧縮空間１８を外方から内方
へ向かって縮小させ、吸込管２２から密閉容器１内の低
圧室１０に流入して電動機部３を通りフレーム４の外周
の吸込通路２１を流れる冷媒を圧縮している。この圧縮
された冷媒は固定スクロールの鏡板１１の吐出孔１４か
ら高圧室９内に吐出され、尾管２４の連通穴２８から空
間２６に入り、吐出管２３から密閉容器１外に吐出され
る。That is, the oscillating scroll 8 has a pin portion 1 inserted into the boss hole 19 of the rotating shaft 5 eccentrically with respect to the axis of the rotating shaft.
7, and is caused to revolve on a circular orbit with respect to the fixed scroll 7 at an Oldham joint 20 so as not to rotate. The fixed scroll 7 and the swinging scroll 8 reduce the compression space 18 formed by these scrolls from the outside to the inside, and the air flows into the low pressure chamber 10 in the closed container 1 from the suction pipe 22. The refrigerant that passes through the electric motor section 3 and flows through the suction passage 21 on the outer periphery of the frame 4 is compressed. This compressed refrigerant is discharged into the high pressure chamber 9 from the discharge hole 14 of the end plate 11 of the fixed scroll, enters the space 26 from the communication hole 28 of the tail pipe 24, and is discharged from the discharge pipe 23 to the outside of the closed container 1.
密閉容器１内の高圧室９に延びた尾管２４は内部を仕切
壁２５で吐出管２３に連通ずる空間２６と高圧室９に開
口する空間２７とに区画することにより、前記空間２７
と空間２６の一部をサイドブランチ型の共鳴マフラとし
て使用し、高圧室９から吐出管２３に吐出される冷媒の
圧力脈動成分の中、吐出管２３を振動させる周波数を減
衰し、吐出管２３が冷媒で振動しないようにしたもので
ある。また、尾管２４の空間２６．２７は開口からの距
離Ｌ１．Ｌｘを違えることにより、減衰できる圧力脈動
成分の周波数を多くできるようにしている。すなわち、
吐出孔１４から高圧室９内に吐出された冷媒は最初に尾
管２４の空間２７で特定の周波数の圧力脈動を減衰され
、次に尾管２３の連通穴２８から空間２６に流入した冷
媒をこの空間内で異なる周波数の圧力脈動を減衰して吐
出管２３から密閉容器１外に吐出される。The tail pipe 24 extending into the high pressure chamber 9 in the closed container 1 is partitioned by a partition wall 25 into a space 26 communicating with the discharge pipe 23 and a space 27 opening into the high pressure chamber 9.
A part of the space 26 is used as a side branch type resonance muffler to attenuate the frequency of vibration of the discharge pipe 23 in the pressure pulsation component of the refrigerant discharged from the high pressure chamber 9 to the discharge pipe 23. The refrigerant is used to prevent vibration. Moreover, the spaces 26, 27 of the tail tube 24 are located at a distance L1.27 from the opening. By varying Lx, the frequency of the pressure pulsation component that can be attenuated can be increased. That is,
The refrigerant discharged from the discharge hole 14 into the high pressure chamber 9 first has its pressure pulsations at a specific frequency attenuated in the space 27 of the tail pipe 24, and then the refrigerant flowing into the space 26 from the communication hole 28 of the tail pipe 23 is damped. Within this space, pressure pulsations of different frequencies are attenuated and the fluid is discharged from the discharge pipe 23 to the outside of the closed container 1.
尾管２４の連通穴２８は下端に設けることにより、高圧
室９から空間２６内に流入した冷媒に含まれているオイ
ルがこの空間内で分離された際に、高圧室９内に戻りや
すくしている。By providing the communication hole 28 of the tail pipe 24 at the lower end, when the oil contained in the refrigerant that has flowed into the space 26 from the high pressure chamber 9 is separated in this space, it is made easier to return to the high pressure chamber 9. ing.
この発明は密閉容器１内の高圧室９に延びた吐７
尾管２３の尾管２４にサイドブランチ型の共鳴マフラを
設げることにより、密閉容器１内から吐出管２３に吐出
される直前の冷媒の圧力脈動を減衰することができ、吐
出管が冷媒の圧力脈動で振動するのを防止できるように
したものである。This invention provides a side branch type resonant muffler in the tail pipe 24 of the discharge 7 tail pipe 23 extending into the high pressure chamber 9 in the closed container 1, so that the The pressure pulsations of the refrigerant can be attenuated, and the discharge pipe can be prevented from vibrating due to the pressure pulsations of the refrigerant.
（ト）発明の効果
以上のようにこの発明によれば、密閉容器内の高圧室に
延びた尾管の内部を仕切壁で区画し、この仕切壁と密閉
容器との間に高圧室に連通ずる連通穴を設けてサイドブ
ランチ型の共鳴マフラを形成したのであるから、前記高
圧室内に吐出された冷媒の圧力脈動を尾管で減衰するこ
とができ、高圧室から吐出管に吐出された冷媒で前記吐
出管が振動するのを防止できるものである。(G) Effects of the Invention According to the present invention, the interior of the tail pipe extending to the high pressure chamber in the closed container is divided by a partition wall, and the space between the partition wall and the closed container is connected to the high pressure chamber. Since a side branch type resonant muffler is formed by providing communication holes that communicate with each other, the pressure pulsations of the refrigerant discharged into the high pressure chamber can be attenuated by the tail pipe, and the refrigerant discharged from the high pressure chamber into the discharge pipe can be damped. This can prevent the discharge pipe from vibrating.
第１図はこの発明の一実施例を示すスクロール圧縮機の
縦断面図、第２図は同じく密閉容器に吐出管を取付けた
状態を示す要部拡大断面図である。
１・・・密閉容器、 ２・・・スクロール圧縮要素、
−８＝
９・・・高圧室、
２３・・・吐出管、
２４・・・尾管、
５・・・仕切壁、
２６．２７・・・空間、
２８・・・連
通水。FIG. 1 is a longitudinal cross-sectional view of a scroll compressor showing an embodiment of the present invention, and FIG. 2 is an enlarged cross-sectional view of a main part showing a state in which a discharge pipe is attached to a closed container. 1... Airtight container, 2... Scroll compression element,
-8= 9...High pressure chamber, 23...Discharge pipe, 24...Tail pipe, 5...Partition wall, 26.27...Space, 28...Communicating water.
Claims (1)
有し、この圧縮要素で圧縮された冷媒を、密閉容器内の
高圧室を介してこの容器に取付けた吐出管から吐出した
圧縮機において、前記吐出管には密閉容器内の高圧室内
に延びた尾管が設けられ、この尾管内は仕切壁で区画さ
れ、かつ、この仕切壁と密閉容器との間の尾管に高圧室
に連通する連通穴を設けたことを特徴とする圧縮機の消
音装置。1. A compressor that has a closed container and a compression element housed in the container, and the refrigerant compressed by the compression element is discharged from a discharge pipe attached to the container through a high pressure chamber in the closed container. In the machine, the discharge pipe is provided with a tail pipe extending into a high pressure chamber in a sealed container, the inside of this tail pipe is divided by a partition wall, and a high pressure chamber is provided in the tail pipe between the partition wall and the sealed container. A silencer for a compressor, characterized by having a communication hole communicating with the compressor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24427889A JP2708908B2 (en) | 1989-09-20 | 1989-09-20 | Compressor silencer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24427889A JP2708908B2 (en) | 1989-09-20 | 1989-09-20 | Compressor silencer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03107594A true JPH03107594A (en) | 1991-05-07 |
| JP2708908B2 JP2708908B2 (en) | 1998-02-04 |
Family
ID=17116368
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP24427889A Expired - Lifetime JP2708908B2 (en) | 1989-09-20 | 1989-09-20 | Compressor silencer |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2708908B2 (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1998044259A1 (en) * | 1997-04-02 | 1998-10-08 | Hitachi Construction Machinery Co., Ltd. | Pulsation reducing device |
| US5921761A (en) * | 1997-04-17 | 1999-07-13 | Copeland Corporation | Scroll machine with discharge duct |
| JP2011047383A (en) * | 2009-08-28 | 2011-03-10 | Sanyo Electric Co Ltd | Scroll compressor |
| CN102003389A (en) * | 2009-08-28 | 2011-04-06 | 三洋电机株式会社 | Scroll compressor |
| CN103982399A (en) * | 2014-03-25 | 2014-08-13 | 美的集团股份有限公司 | Compressor and outdoor unit of air conditioner with compressor |
| JP2019045809A (en) * | 2017-09-07 | 2019-03-22 | セイコーエプソン株式会社 | Display driver, electro-optical device, and electronic apparatus |
-
1989
- 1989-09-20 JP JP24427889A patent/JP2708908B2/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6116872A (en) * | 1997-02-04 | 2000-09-12 | Hitachi Construction Machinery Co., Ltd | Ripple reducing device |
| WO1998044259A1 (en) * | 1997-04-02 | 1998-10-08 | Hitachi Construction Machinery Co., Ltd. | Pulsation reducing device |
| US5921761A (en) * | 1997-04-17 | 1999-07-13 | Copeland Corporation | Scroll machine with discharge duct |
| JP2011047383A (en) * | 2009-08-28 | 2011-03-10 | Sanyo Electric Co Ltd | Scroll compressor |
| CN102003387A (en) * | 2009-08-28 | 2011-04-06 | 三洋电机株式会社 | Vortex compressor |
| CN102003389A (en) * | 2009-08-28 | 2011-04-06 | 三洋电机株式会社 | Scroll compressor |
| CN103982399A (en) * | 2014-03-25 | 2014-08-13 | 美的集团股份有限公司 | Compressor and outdoor unit of air conditioner with compressor |
| JP2019045809A (en) * | 2017-09-07 | 2019-03-22 | セイコーエプソン株式会社 | Display driver, electro-optical device, and electronic apparatus |
| US10490115B2 (en) | 2017-09-07 | 2019-11-26 | Seiko Epson Corporation | Display driver, electro-optical device, and electronic apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2708908B2 (en) | 1998-02-04 |
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