JPS6319593Y2 - - Google Patents
Info
- Publication number
- JPS6319593Y2 JPS6319593Y2 JP9103283U JP9103283U JPS6319593Y2 JP S6319593 Y2 JPS6319593 Y2 JP S6319593Y2 JP 9103283 U JP9103283 U JP 9103283U JP 9103283 U JP9103283 U JP 9103283U JP S6319593 Y2 JPS6319593 Y2 JP S6319593Y2
- Authority
- JP
- Japan
- Prior art keywords
- sealed case
- refrigerant flow
- stator
- motor
- cavity
- 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.)
- Expired
Links
- 239000003507 refrigerant Substances 0.000 claims description 21
- 230000006835 compression Effects 0.000 claims description 10
- 238000007906 compression Methods 0.000 claims description 10
- 230000010349 pulsation Effects 0.000 description 5
- 239000002826 coolant Substances 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
Description
【考案の詳細な説明】
産業上の利用分野
本考案は冷凍冷蔵装置等に用いられる回転型圧
縮機に係り、特に、圧縮された吐出冷媒を、いつ
たん密閉ケース外部にて冷却させ再び密閉ケース
内に戻すプリクーラを有するものに関する。[Detailed description of the invention] Industrial application field The present invention relates to a rotary compressor used in freezing and refrigerating equipment, etc., and in particular, the compressed discharged refrigerant is cooled once outside the sealed case and then returned to the sealed case. This relates to a device having a pre-cooler that is returned to the inside.
従来例の構成とその問題点
従来、この種の圧縮機においては、密閉ケース
内の空洞における空洞共鳴現象により、騒音が間
題となることがあつた。Conventional configuration and problems thereof Conventionally, in this type of compressor, noise has sometimes been a problem due to the cavity resonance phenomenon in the cavity within the closed case.
以下、従来例を示す第１〜第３図を参照しなが
ら、こられの空洞共鳴現象について説明する。 Hereinafter, these cavity resonance phenomena will be explained with reference to FIGS. 1 to 3 showing conventional examples.
１は密閉ケースで、２はモータ、３はロータ、
４はステータである。５は圧縮要素で、６はシリ
ンダ、７はベアリング、８は吐出カバーで、９は
クランクシヤフトである。１０はプリクーラ管
で、一端１０ａは吐出カバー８に連接し、密閉ケ
ース１外にいつたん導出し、熱交換器１１を経て
他端１０ｂは、密閉ケースのモータ側１ａより密
閉ケース内に戻る。１２はオイルである。１３は
密閉ケース１と圧縮要素５及びオイル１２で形成
される空洞、１４は密閉ケース１と、圧縮要素
５、モータ２、オイル１２で形成される空洞、１
５は密閉ケース１とモータ２、オイル１２で形成
される空洞である。ステータ４と密閉ケース１の
間には、オイル１２の流通路１６及び複数個の冷
媒流通路１７，１８，１９，２０，２１が設けら
れている。さらに、ベアリング７には、オイル流
通孔２２及び、冷媒流通孔２３，２４が設けてあ
る。 1 is a sealed case, 2 is a motor, 3 is a rotor,
4 is a stator. 5 is a compression element, 6 is a cylinder, 7 is a bearing, 8 is a discharge cover, and 9 is a crankshaft. Reference numeral 10 designates a pre-cooler tube, one end 10a of which is connected to the discharge cover 8 and led out of the sealed case 1, and the other end 10b returns into the sealed case from the motor side 1a of the sealed case via a heat exchanger 11. 12 is oil. 13 is a cavity formed by the sealed case 1, the compression element 5, and the oil 12; 14 is a cavity formed by the sealed case 1, the compression element 5, the motor 2, and the oil 12;
5 is a cavity formed by the sealed case 1, the motor 2, and the oil 12. A flow path 16 for oil 12 and a plurality of refrigerant flow paths 17, 18, 19, 20, and 21 are provided between stator 4 and sealed case 1. Further, the bearing 7 is provided with an oil flow hole 22 and coolant flow holes 23 and 24.
かかる構成において、シリンダ７内や、バルブ
（図示せず）で発生した冷媒ガスの圧力脈動は、
吐出カバー８、プリクーラ管１０内を経て、プリ
クーラ端部１０ｂより空洞１５に放射され、冷媒
流通路１７〜２１を経て、空洞１４に伝わり、さ
らに、冷媒流通路２３，２４より空洞１３内に放
射される。空洞１３は圧縮要素５により、二重円
筒空洞に近い形状をしているため、空洞１３内に
放射された圧力脈動は２重円筒空洞に近いモード
の共鳴を生じ、騒音を発生することがあつた。 In this configuration, the pressure pulsations of the refrigerant gas generated inside the cylinder 7 or at the valve (not shown) are
It passes through the discharge cover 8 and the precooler pipe 10, is radiated into the cavity 15 from the precooler end 10b, is transmitted to the cavity 14 through the refrigerant flow passages 17 to 21, and is further radiated into the cavity 13 from the refrigerant flow passages 23 and 24. be done. Since the cavity 13 has a shape similar to a double cylindrical cavity due to the compression element 5, pressure pulsations radiated into the cavity 13 may cause resonance in a mode similar to that of a double cylindrical cavity, which may generate noise. Ta.
考案の目的
本考案は、これらの空洞共鳴による騒音問題を
解決するためになされたものである。Purpose of the invention The present invention was made in order to solve the noise problem caused by these cavity resonances.
考案の構成
この目的を達成するため、ステータと密閉ケー
スの間の冷媒流通路を１つとし、さらに、密閉ケ
ースに固定されたシリンダもしくはベアリングの
冷媒流通孔を、ステータの冷媒流通路から、クラ
ンクシヤフトに対して、それぞれ互いに反対方向
に等角度で回転した位置に設けることにより、干
渉型のマフラー効果を得られるようにしたもので
ある。Structure of the invention In order to achieve this objective, there is one refrigerant passage between the stator and the sealed case, and the refrigerant passage of the cylinder or bearing fixed to the sealed case is connected from the refrigerant passage of the stator to the crankshaft. By providing the muffler at positions rotated at equal angles in opposite directions with respect to the shaft, an interference type muffler effect can be obtained.
実施例の説明
以下、第４図〜第６図を参照しながら、本考案
の一実施例を詳細に説明する（説明の重複をさけ
るため、従来例と同一部分については同一符号を
付して省略する）。２５はステータ４と密閉ケー
ス１の間の冷媒流通路で、ベアリング７には、冷
媒流通路２５から、クランクシヤフト９の回転軸
に対して互いに反対方向に90度回転させた位置
に、冷媒流通孔２６，２７を設けている。DESCRIPTION OF THE EMBODIMENTS An embodiment of the present invention will be described in detail below with reference to FIGS. (omitted). Reference numeral 25 denotes a refrigerant flow passage between the stator 4 and the sealed case 1, and a refrigerant flow passage is provided in the bearing 7 from the refrigerant flow passage 25 at positions rotated 90 degrees in opposite directions with respect to the rotation axis of the crankshaft 9. Holes 26 and 27 are provided.
かかる構成において、プリクーラ管内より、空
洞１５に放射された圧力脈動は、冷媒流通路２５
を経て、空洞１４に放射され、かつ、冷媒流通孔
２６及び２７は前記流通路２５より等距離にある
ため、圧力脈動は、空洞１３に前記流通孔２６，
２７より同位相で放射される。さらに、流通孔２
６，２７はクランクシヤフト回転軸に対して、
180゜の位置にあるため、空洞内で生ずる、略２重
円筒空洞により生じる奇数次の共鳴モードを互い
に干渉させ圧力脈動の音圧レベルを減少させるこ
とができる。 In such a configuration, pressure pulsations radiated from the inside of the precooler pipe to the cavity 15 are transmitted through the refrigerant flow path 25.
Since the refrigerant flow holes 26 and 27 are equidistant from the flow path 25, the pressure pulsations are radiated into the cavity 13 through the flow holes 26 and 27.
27 in the same phase. Furthermore, the flow hole 2
6 and 27 are relative to the crankshaft rotation axis,
Since it is located at an angle of 180 degrees, it is possible to cause odd-order resonance modes generated within the cavity due to the approximately double cylindrical cavity to interfere with each other, thereby reducing the sound pressure level of pressure pulsations.
考案の効果
以上のように、本考案は、略円筒形状の密閉ケ
ース内に、モータ及び圧縮要素を収納し、一端を
前記圧縮要素の吐出チヤンバーに連接し、いつた
ん前記密閉ケースより外に導出し、再び前記密閉
ケースモータ側より密閉ケース内に戻るプリクー
ラ配管を有し、前記モータのステータを前記密閉
ケースに固定し、ステータと密閉ケースの間に冷
媒流通経路を１ケ所設け、さらに前記圧縮要素を
外周部が円形のシリンダもしくはベアリングで前
記密閉ケースに固定し、かつステータに設けられ
た冷媒流通路からクランクシヤフトに対して、互
いに反対方向に等角度で回転した位置に冷媒流通
孔を備えることにより、干渉型マフラーとしての
効果を得、空洞共鳴による騒音問題の解決を図つ
たものである。Effects of the Invention As described above, the present invention houses a motor and a compression element in a substantially cylindrical sealed case, connects one end to the discharge chamber of the compression element, and immediately leads out of the sealed case. and a pre-cooler pipe returning from the sealed case motor side to the sealed case, the stator of the motor is fixed to the sealed case, one refrigerant flow path is provided between the stator and the sealed case, and the compression The element is fixed to the sealed case with a cylinder or bearing having a circular outer circumference, and refrigerant flow holes are provided at positions rotated at equal angles in opposite directions with respect to the crankshaft from the refrigerant flow passage provided in the stator. By doing so, it is possible to obtain the effect of an interference type muffler and solve the noise problem caused by cavity resonance.
第１図は、従来例を示す回転型圧縮機の断面
図、第２図は、第１図のＡ−Ａ線による断面図、
第３図は第１図のＢ−Ｂ線による断面図、第４図
は、本考案の一実施例を示す回転型圧縮機の断面
図、第５図は第４図Ｃ−Ｃ線による断面図、第６
図は第４図Ｄ−Ｄ線による断面図である。
４……ステータ、７……ベアリング、９……ク
ランクシヤフト、２５……冷媒流通路、２６，２
７……冷媒流通孔。
FIG. 1 is a sectional view of a rotary compressor showing a conventional example, and FIG. 2 is a sectional view taken along line A-A in FIG. 1.
3 is a sectional view taken along line B-B in FIG. 1, FIG. 4 is a sectional view of a rotary compressor showing an embodiment of the present invention, and FIG. 5 is a sectional view taken along line C-C in FIG. 4. Figure, 6th
The figure is a sectional view taken along line D-D in FIG. 4. 4...Stator, 7...Bearing, 9...Crankshaft, 25...Refrigerant flow path, 26,2
7... Refrigerant flow hole.
Claims (1)
要素を収納し、一端を前記圧縮要素の吐出チヤン
バーに連接し、いつたん前記密閉ケースより外に
導出し、再び前記密閉ケースモータ側より密閉ケ
ース内に戻るプリクーラ配管を有すると共に、前
記モータのステータを前記密閉ケースに固定し、
ステータと密閉ケースの間に冷媒流通路を１ケ所
設け、さらに、前記圧縮要素を外周部が円形のシ
リンダもしくはベアリングで前記密閉ケースに固
定し、さらに前記密閉ケースに固定されたシリン
ダもしくはベアリングに、前記ステータに設けた
冷媒流通路から、クランクシヤフトを中心に互い
に反対方向に等角度で回転した位置に冷媒流通孔
を設けた回転型圧縮機。 A motor and a compression element are housed in a substantially cylindrical sealed case, one end of which is connected to the discharge chamber of the compression element, and then led out of the sealed case, and then re-introduced into the sealed case from the sealed case motor side. a pre-cooler piping returning to the motor, and a stator of the motor is fixed to the sealed case;
One refrigerant flow passage is provided between the stator and the sealed case, the compression element is fixed to the sealed case with a cylinder or bearing having a circular outer circumference, and the cylinder or bearing is fixed to the sealed case, A rotary compressor in which refrigerant flow holes are provided at positions rotated at equal angles in opposite directions about the crankshaft from the refrigerant flow passage provided in the stator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9103283U JPS59196589U (en) | 1983-06-14 | 1983-06-14 | rotary compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9103283U JPS59196589U (en) | 1983-06-14 | 1983-06-14 | rotary compressor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59196589U JPS59196589U (en) | 1984-12-27 |
| JPS6319593Y2 true JPS6319593Y2 (en) | 1988-06-01 |
Family
ID=30221003
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9103283U Granted JPS59196589U (en) | 1983-06-14 | 1983-06-14 | rotary compressor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59196589U (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2511855B2 (en) * | 1985-09-06 | 1996-07-03 | 株式会社日立製作所 | Horizontal scroll compressor |
-
1983
- 1983-06-14 JP JP9103283U patent/JPS59196589U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59196589U (en) | 1984-12-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS6137835Y2 (en) | ||
| JPS6319593Y2 (en) | ||
| JPS601396A (en) | Low-discharge-pulsation compressor | |
| JP3899203B2 (en) | Reciprocating compressor | |
| US2893626A (en) | Refrigerating apparatus | |
| JP2003056463A (en) | Electric compressor | |
| JPS6039517Y2 (en) | Silencer for hermetic compressor | |
| CN206035810U (en) | Rotary compressor | |
| JPS6245051Y2 (en) | ||
| JPS61108887A (en) | Rotary compressor | |
| JPH0416617Y2 (en) | ||
| JPH0476284A (en) | Compressor | |
| JPS6050296A (en) | Rotary compressor | |
| JPS606094A (en) | Rotary compressor | |
| JPS5835285A (en) | Rotary type compressor | |
| JPH029117Y2 (en) | ||
| JPS6299695A (en) | Rotary compressor | |
| JPS6341521Y2 (en) | ||
| JPS6136797Y2 (en) | ||
| JPS581680Y2 (en) | rotary compressor | |
| JPH0229263Y2 (en) | ||
| JP2543032B2 (en) | Rotary compressor | |
| JPH087116Y2 (en) | Compressor | |
| KR100285850B1 (en) | Noise absorption apparatus for rotary compressor | |
| JPS6245098Y2 (en) |