JPH0752049B2 - Refrigeration cycle - Google Patents
Refrigeration cycleInfo
- Publication number
- JPH0752049B2 JPH0752049B2 JP60142218A JP14221885A JPH0752049B2 JP H0752049 B2 JPH0752049 B2 JP H0752049B2 JP 60142218 A JP60142218 A JP 60142218A JP 14221885 A JP14221885 A JP 14221885A JP H0752049 B2 JPH0752049 B2 JP H0752049B2
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- Prior art keywords
- compressor
- pipe
- center
- gravity
- vibration
- Prior art date
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- Expired - Lifetime
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- Saccharide Compounds (AREA)
- Fats And Perfumes (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Description
【発明の詳細な説明】 〔発明の技術分野〕 本発明は、例えば、空気調和機に使用される冷凍サイク
ルに係り、特に、この冷凍サイクルの圧縮機の防振装置
に関する。Description: TECHNICAL FIELD OF THE INVENTION The present invention relates to, for example, a refrigeration cycle used in an air conditioner, and more particularly to a vibration isolation device for a compressor of this refrigeration cycle.
既に提案されているこの種の空気調和機に組込まれる室
外ユニットは、第14図乃至第16図に示されるように、扁
平な基板１上に、例えば、ロータリ圧縮装置による圧縮
装置を内蔵した圧縮機本体２を、この下部に付設された
吸振材3aを備えた複数の脚足片３で固定し、上記圧縮機
本体２の一側壁にサクションカップ４を固定具５を介し
て添設し、このサクションカップ４に冷媒の吸込管６の
一端部を接続し、この吸込管６の他端部を上記圧縮機本
体２の外がわの周りを上・下方向に蛇行して、しかも、
四方弁７を介してパックドバルブ８に接続し、他方、上
記圧縮機本体２の頂部に接続端子2aを付設し、この接続
端子2aの近傍の上記圧縮機本体２に冷媒の吐出管９の一
端部を接続し、この吐出管９の他端部を上記四方弁７を
介して、例えば、凝縮器のような室外熱交換器10に接続
して構成したものである。なお、第16図中、符号13は、
減圧装置を示し、14は、蒸発器のような室内熱交換器を
示す。An outdoor unit incorporated in an air conditioner of this type that has already been proposed is, for example, as shown in FIGS. 14 to 16, a flat board 1 on which a compression device, for example, a rotary compression device is incorporated. The machine main body 2 is fixed by a plurality of leg legs 3 provided with a vibration absorbing material 3a attached to the lower part thereof, and a suction cup 4 is attached to one side wall of the compressor main body 2 via a fixture 5. One end of a suction pipe 6 for the refrigerant is connected to the suction cup 4, and the other end of the suction pipe 6 is meandered upward and downward around the outer edge of the compressor body 2, and
Connected to a packed valve 8 via a four-way valve 7, on the other hand, a connecting terminal 2a is attached to the top of the compressor body 2, and one end of a refrigerant discharge pipe 9 is attached to the compressor body 2 near the connecting terminal 2a. And the other end of the discharge pipe 9 is connected to the outdoor heat exchanger 10 such as a condenser via the four-way valve 7. In addition, in FIG. 16, reference numeral 13 indicates
Reference numeral 14 denotes a pressure reducing device, and 14 denotes an indoor heat exchanger such as an evaporator.
従って、上述した空気調和機における室外ユニットは、
冷房時、図示されない室内ユニットの室内熱交換器14か
ら仕事を了えて還流した冷媒は、上記四方弁７及び上記
圧縮機本体２の外がわの周りに、上・下方向に蛇行して
形成された吸込管６を通して上記サクションカップ４に
流入し、さらに、これを連管11を通して上記圧縮機本体
２へ供給し、この圧縮機本体２の圧縮装置で冷媒を加圧
し、この加圧された冷媒は、上記吐出管９から上記四方
弁７を介して上記室外熱交換器10へ圧送し、こゝで熱交
換して上記室内熱交換器14へ減圧して移送し、この室内
熱交換器14によって室内を冷房するようになっている。Therefore, the outdoor unit in the air conditioner described above,
During cooling, the refrigerant that has finished working and returned from the indoor heat exchanger 14 of the indoor unit (not shown) is formed around the outer wall of the four-way valve 7 and the compressor body 2 in a meandering direction in the upward and downward directions. It flows into the suction cup 4 through the suction pipe 6 and is supplied to the compressor main body 2 through the connecting pipe 11. The compressor of the compressor main body 2 pressurizes the refrigerant and pressurizes it. The refrigerant is pressure-fed from the discharge pipe 9 through the four-way valve 7 to the outdoor heat exchanger 10, where heat is exchanged, the pressure is transferred to the indoor heat exchanger 14 under reduced pressure, and the indoor heat exchanger is transferred. 14 is designed to cool the room.
しかしながら、上述した室外ユニットにおける圧縮機本
体２は、これに添設されるサクションカップ４に接続し
た吸込管６を上記圧縮機本体２の外周に上・下方向に蛇
行して配管している関係上、運転時、上記吸込管６が共
振現象を起し易くなり、振動や騒音を発生するおそれが
あるばかりでなく、配管接続部に亀裂を生じるおそれが
あり、しかも、圧縮機の駆動時に発生する加振力が減衰
し難くなり、静粛な運転が望まれる空気調和機として不
具合がある。However, in the compressor main body 2 in the outdoor unit described above, the suction pipe 6 connected to the suction cup 4 attached to the compressor main body 2 meanders upward and downward on the outer periphery of the compressor main body 2 for piping. In addition, during operation, the suction pipe 6 easily causes a resonance phenomenon, which may cause vibration and noise, and may cause a crack in a pipe connection portion. The vibrating force to be applied is less likely to be attenuated, and there is a problem as an air conditioner for which quiet operation is desired.
本発明は、上述した事情に鑑みてなされたものであっ
て、運転時における冷媒配管の共振現象の発生や加振力
を抑制すると共に、配管接続部の亀裂を防止し、併せ
て、空気調和機の静粛な運転を図り、信頼性の向上を図
ることを目的とする冷凍サイクルを提供するものであ
る。The present invention has been made in view of the above-mentioned circumstances, and suppresses the occurrence of a resonance phenomenon and an exciting force of a refrigerant pipe during operation, prevents cracks in a pipe connecting portion, and, in addition, air conditioning. (EN) A refrigerating cycle for the purpose of quiet operation of a machine and improvement of reliability.
本発明は、圧縮機、凝縮機、減圧装置、蒸発器を順次冷
媒配管で接続してなる冷凍サイクルにおいて、前記圧縮
機に接続される冷媒配管を前記圧縮機の重心近傍でこの
重心の仮想軸線に平行になるように折曲した後、圧縮機
外周に接続したことを特徴とする。The present invention, in a refrigeration cycle in which a compressor, a condenser, a decompression device, and an evaporator are sequentially connected by a refrigerant pipe, the refrigerant pipe connected to the compressor is located near the center of gravity of the compressor, and a virtual axis line of the center of gravity is provided. It is characterized in that it is bent so as to be parallel to and then connected to the outer periphery of the compressor.
以下、本発明を、図示の一実施例について説明する。 Hereinafter, the present invention will be described with reference to the illustrated embodiment.
なお、本発明は、上述した具体例と同一構成部材には、
同じ符号を付して説明する。In addition, the present invention, the same components as the above-mentioned specific example,
Description will be given with the same reference numerals.
第１図乃至第３図において、符号１は、扁平な基板であ
って、この基板１上には、圧縮装置を内蔵した圧縮機本
体２がこの下部に付設された吸振材3aを備えた複数の脚
足片３によって固定されており、この圧縮機本体２の一
側壁には、サクションカップ４が固定具５によって添設
されている。又、このサクションカップ４には、冷媒配
管を構成する吸込管６の一端部が接続されており、この
吸込管６の他端部は、圧縮機本体２の上方に屈曲され、
サクションカップが連結された圧縮機本体２の全体の重
心Ｇの近傍12で、重心の仮想軸線に平行になるように垂
直方向に折曲され、さらにその上方部で水平方向に折曲
されて圧縮機本体２の略半径方向に突出するように形成
され、その先端部が四方弁７（第14図参照）へ連結され
ている。1 to 3, reference numeral 1 is a flat substrate, on which a compressor body 2 having a built-in compressor is provided with a plurality of vibration absorbers 3a attached to the bottom thereof. Is fixed by leg feet 3, and a suction cup 4 is attached to one side wall of the compressor body 2 by a fixture 5. Further, one end of a suction pipe 6 that constitutes a refrigerant pipe is connected to the suction cup 4, and the other end of the suction pipe 6 is bent above the compressor body 2.
In the vicinity 12 of the center of gravity G of the entire compressor body 2 to which the suction cup is connected, it is bent vertically so as to be parallel to the virtual axis of the center of gravity, and further bent horizontally in the upper part to compress. It is formed so as to protrude in a substantially radial direction of the machine body 2, and its tip is connected to the four-way valve 7 (see FIG. 14).
特に、上記重心Ｇの近傍（重心近傍）12の範囲は、第３
図に示されるように上記圧縮機本体２の中心位置Ｏとサ
クションカップ４の中心位置O2との中心距離をＲとした
とき、上記重心Ｇの周りに上記中心距離Ｒの約R/3の半
径で描く範囲であり、２回屈曲している吸込管６の一部
6cは、第１図に示すように、重心Ｇの仮想軸線O1に位置
していることが最も望ましいが、第３図のように重心Ｇ
の周りの約R/3の半径で描く範囲内に位置してもよい。
又、上記吸込管６の一部は、第２図に示されるように、
圧縮機本体２の背壁がわから立上りして配管されてお
り、しかも、上記仮想軸線O1の軸線を降下して折曲し、
しかる後、サクションカップ４に接続されている。Particularly, the range 12 near the center of gravity G (near the center of gravity) is the third
When the center distance between the center position O 2 of the center position O and the suction cup 4 of the compressor body 2 is R as shown in FIG, about R / 3 of the center distance R around the center of gravity G A part of the suction pipe 6 which is a range drawn with a radius and is bent twice
It is most preferable that 6c is located on the virtual axis O 1 of the center of gravity G as shown in FIG. 1 , but as shown in FIG.
It may be located within a range of about R / 3 around.
Further, a part of the suction pipe 6 is, as shown in FIG.
The back wall of the compressor main body 2 is erected and piped, and further, the axis of the virtual axis O 1 is lowered and bent,
After that, it is connected to the suction cup 4.
なお、上記圧縮機本体２の頂部には、吐出管９及び接続
端子2aが付設されており、上記圧縮機本体２とサクショ
ンカップ４とは連管11によって連結されている。A discharge pipe 9 and a connection terminal 2a are attached to the top of the compressor body 2, and the compressor body 2 and the suction cup 4 are connected by a connecting pipe 11.
従って、上記圧縮機本体２内の圧縮装置が運転を開始す
ると、冷凍サイクルの一部を構成する吸込管６内を流れ
る冷媒は、サクションカップ４及び上記連管11を通して
上記圧縮機本体２内の圧縮装置へ供給される。このとき
圧縮機本体２とサクションカップ４との振動によって、
圧縮機の外周に接続された部分から屈曲部6bに至る配管
が、圧縮機の周方向への振動に応じて振動したとして
も、圧縮機の重心近傍でこの重心の仮想軸線に平行な配
管6cによって、この回転方向の振動が吸収され、屈曲部
6aから他の部分に至る配管の振動は、圧縮機から屈曲部
6bに至る配管の振動よりも低減され、共振現象の発生等
が抑制される。Therefore, when the compressor in the compressor body 2 starts to operate, the refrigerant flowing in the suction pipe 6 which constitutes a part of the refrigeration cycle passes through the suction cup 4 and the connecting pipe 11 and flows into the compressor body 2 inside. It is supplied to the compression device. At this time, due to the vibration of the compressor body 2 and the suction cup 4,
Even if the pipe extending from the portion connected to the outer periphery of the compressor to the bent portion 6b vibrates in response to the vibration in the circumferential direction of the compressor, the pipe 6c parallel to the virtual axis of the center of gravity of the compressor near the center of gravity of the compressor. The vibration in this rotation direction is absorbed by the
The vibration of the pipe from 6a to other parts is
The vibration of pipes up to 6b is reduced, and the occurrence of resonance phenomenon is suppressed.
即ち、第４図のグラフに示されるように、室外ユニット
の振動と上記吸込管６における重心ＧからR/3に位置す
る重心近傍12では、吸込管６を屈曲して形成されている
ため、駆動時の振動を低減することができる。That is, as shown in the graph of FIG. 4, since the vibration of the outdoor unit and the center of gravity 12 near the center of gravity G of the suction tube 6 located at R / 3 are formed by bending the suction tube 6, Vibration during driving can be reduced.
又一方、上記室外ユニットにおける圧縮装置の加振力等
による力の伝達率と周波数との関係は、第５図のグラフ
に示されるように、本発明による吸込管６の形状にする
ことにより、力の伝達率は、本発明では曲線Ｉとなり、
既に提案されているものでは曲線IIとなる。このよう
に、本発明の曲線Ｉは、曲線IIよりも低くなり、振動を
低減することができた。On the other hand, the relationship between the frequency and the transmissibility of the force due to the exciting force of the compression device in the outdoor unit and the frequency is as shown in the graph of FIG. In the present invention, the transmission rate of force is curve I,
The curve already proposed is curve II. As described above, the curve I of the present invention was lower than the curve II, and the vibration could be reduced.
他方、上記室外ユニットにおける振動と周波数との関係
は、第６図に示されるように、本発明の吸込管６に形成
することによって、室外ユニットの振動は、本発明では
曲線Ｉとなり、既に提案されているものでは、曲線IIと
なる。このように、本発明の曲線Ｉは、上記曲線IIより
もなだらかにして、しかも、低くなり、振動を低減する
ことができた。On the other hand, regarding the relationship between the vibration and the frequency in the outdoor unit, as shown in FIG. 6, by forming the suction pipe 6 of the present invention, the vibration of the outdoor unit becomes a curve I in the present invention, which has already been proposed. The curve that is used is curve II. As described above, the curve I of the present invention is gentler and lower than the curve II, and the vibration can be reduced.
次に、第７図に示される本発明の他の実施例は、吸込管
６の一部を圧縮機本体２の正面がわから立上り配管し、
上記仮想軸線O1の軸線を降下して折曲し、しかる後、サ
クションカップ４に接続したものであり、これは、上述
した具体例と同じ構成をなすものである。Next, according to another embodiment of the present invention shown in FIG. 7, a part of the suction pipe 6 is erected from the front of the compressor body 2 so as to be piped.
The axis of the virtual axis O 1 is lowered, bent, and then connected to the suction cup 4, which has the same configuration as the specific example described above.
一方、第８図及び第９図に示される本発明の他の実施例
は、吸込管６の一部を圧縮機本体２の背壁がわから立上
り配管し、上記仮想軸線O1の軸線を上昇して折曲し、し
かる後、サクションカップに接続したものであり、これ
も上述した具体例と同じ構成をなすものである。On the other hand, in another embodiment of the present invention shown in FIG. 8 and FIG. 9, a part of the suction pipe 6 is erected from the back wall of the compressor body 2 so as to raise the axis of the virtual axis O 1. Then, it is bent and then connected to a suction cup, which also has the same configuration as the above-described specific example.
次に、第10図に示される本発明の他の実施例は、吸込管
６の一部を圧縮機本体２の正面がわから立上り配管し、
上記仮想軸線O1の軸線を上昇して折曲し、しかる後、サ
クションカップ４へ接続したものである。Next, according to another embodiment of the present invention shown in FIG. 10, a part of the suction pipe 6 is erected from the front of the compressor body 2 to form a pipe.
The axis of the virtual axis O 1 is raised and bent, and then connected to the suction cup 4.
又一方、第11図及び第12図に示される本発明の他の実施
例は、吸込管６の一部を圧縮機本体２の正面右側から立
上り配管し、上記仮想軸線O1の軸線を降下して折曲し、
しかる後、サクションカップ４へ接続したものである。On the other hand, in another embodiment of the present invention shown in FIG. 11 and FIG. 12, a part of the suction pipe 6 is erected from the right front side of the compressor main body 2 and the axis of the virtual axis O 1 is lowered. Then fold,
After that, it is connected to the suction cup 4.
最後に、第13図に示される本発明の他の実施例は、吸込
管６の一部を圧縮機本体２の背面がわから立上り配管
し、上記仮想軸線O1の軸線を降下して折曲し、しかる
後、再び立上り折曲してサクションカップ４へ接続する
と共に、冷媒配管を構成する吐出管９の一部9aを上記仮
想軸線O1の軸線を上昇して折曲げ、これを四方弁７へ接
続して構成したものであり、これによって冷媒配管によ
る振動や騒音の発生を抑制するようにしたものである。Finally, in another embodiment of the present invention shown in FIG. 13, a part of the suction pipe 6 is erected from the rear surface of the compressor body 2 and is bent, and the axis of the virtual axis O 1 is lowered to bend. Then, after that, it rises again and is connected to the suction cup 4, and at the same time, a part 9a of the discharge pipe 9 that constitutes the refrigerant pipe is bent by raising the axis of the virtual axis O 1 and bending it. 7 and is configured to suppress the generation of vibration and noise due to the refrigerant pipe.
本実施例では、サクションカップ４を有する冷凍サイク
ルについて説明したが、本発明は、これについて限定す
るものでなく、サクションカップ４を有しないものにつ
いても適応し得る。即ち、振動源である圧縮機の重心近
傍を冷媒配管と向うように構成するようにしてもよいこ
と勿論である。In the present embodiment, the refrigeration cycle having the suction cup 4 has been described, but the present invention is not limited to this, and one having no suction cup 4 may be applied. That is, it goes without saying that the vicinity of the center of gravity of the compressor, which is the vibration source, may be configured to face the refrigerant pipe.
以上述べたように本発明によれば、圧縮機、凝縮器、減
圧装置、蒸発器を順次冷媒配管で接続してなる冷凍サイ
クルにおいて、前記圧縮機の外周に接続される冷媒配管
を圧縮機の重心上を含む重心近傍でこの重心の仮想軸線
に平行になるように折曲した後、圧縮機外周に接続する
構成にしてあるので、共振現象の発生や加振力を抑制す
ると共に、亀裂を防止して、併せて、配管を簡素化する
ことができる。As described above, according to the present invention, in the refrigeration cycle in which the compressor, the condenser, the pressure reducing device, and the evaporator are sequentially connected by the refrigerant pipe, the refrigerant pipe connected to the outer periphery of the compressor is After bending so as to be parallel to the virtual axis of the center of gravity in the vicinity of the center of gravity including on the center of gravity, it is configured to connect to the outer periphery of the compressor, so that the occurrence of resonance phenomenon and the excitation force are suppressed, and cracks are generated. In addition, the piping can be prevented and the piping can be simplified.
第１図は、本発明による冷凍サイクルの圧縮機の正面
図、第２図は、同上平面図、第３図は、本発明の作用を
説明するための線図、第４図は、本発明による室外ユニ
ット振動と重心Ｇからの距離との関係を示すグラフ、第
５図は、圧縮装置の加振力等による力の伝達率と周波数
との関係を示すグラフ、第６図は、室外ユニットの振動
と周波数との関係を示すグラフ、第７図乃至第13図は、
本発明の他の実施例を示す各図、第14図は、既に提案さ
れている室外ユニットの斜面図、第15図は、同上平面
図、第16図は冷凍サイクルを示す線図である。 ２……圧縮機本体、４……サクションカップ、５……固
定具、６……吸込管、９……吐出管、12……重心近傍、
Ｇ……重心、O1……仮想軸心。FIG. 1 is a front view of a compressor of a refrigeration cycle according to the present invention, FIG. 2 is a plan view of the same as above, FIG. 3 is a diagram for explaining the operation of the present invention, and FIG. 5 is a graph showing the relationship between the vibration of the outdoor unit and the distance from the center of gravity G, FIG. 5 is a graph showing the relationship between the transmissibility of the force due to the exciting force of the compression device and the frequency, and FIG. 6 is the outdoor unit. 7 to 13 are graphs showing the relationship between vibration and frequency of
FIG. 14 is a perspective view of an outdoor unit already proposed, FIG. 15 is a plan view of the same as above, and FIG. 16 is a diagram showing a refrigeration cycle. 2 ... Compressor body, 4 ... Suction cup, 5 ... Fixing device, 6 ... Suction pipe, 9 ... Discharge pipe, 12 ... Near center of gravity,
G: center of gravity, O 1 ... virtual axis.
Claims (1)
冷媒配管で接続してなる冷媒サイクルにおいて、前記圧
縮機の外周に接続される冷媒配管を前記圧縮機の重心近
傍でこの重心の仮想軸線に平行になるよう折曲した後、
圧縮機外周に接続するよう構成したことを特徴とする冷
凍サイクル。1. In a refrigerant cycle in which a compressor, a condenser, a decompression device, and an evaporator are sequentially connected by refrigerant pipes, a refrigerant pipe connected to the outer periphery of the compressor is provided with the center of gravity in the vicinity of the center of gravity of the compressor. After bending it to be parallel to the virtual axis of
A refrigeration cycle characterized by being configured to be connected to the outer periphery of a compressor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60142218A JPH0752049B2 (en) | 1985-06-28 | 1985-06-28 | Refrigeration cycle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60142218A JPH0752049B2 (en) | 1985-06-28 | 1985-06-28 | Refrigeration cycle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS625063A JPS625063A (en) | 1987-01-12 |
| JPH0752049B2 true JPH0752049B2 (en) | 1995-06-05 |
Family
ID=15310153
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60142218A Expired - Lifetime JPH0752049B2 (en) | 1985-06-28 | 1985-06-28 | Refrigeration cycle |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0752049B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3398988B2 (en) * | 1992-09-30 | 2003-04-21 | 富士電機株式会社 | Compressor connection piping |
| JPH08145498A (en) * | 1994-11-15 | 1996-06-07 | Sanyo Electric Co Ltd | Refrigerator |
| KR100463535B1 (en) * | 2002-11-21 | 2004-12-29 | 엘지전자 주식회사 | Pipe structure of outdoor unit for air conditioner |
-
1985
- 1985-06-28 JP JP60142218A patent/JPH0752049B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS625063A (en) | 1987-01-12 |
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