JPS6321052B2 - - Google Patents
Info
- Publication number
- JPS6321052B2 JPS6321052B2 JP11729582A JP11729582A JPS6321052B2 JP S6321052 B2 JPS6321052 B2 JP S6321052B2 JP 11729582 A JP11729582 A JP 11729582A JP 11729582 A JP11729582 A JP 11729582A JP S6321052 B2 JPS6321052 B2 JP S6321052B2
- Authority
- JP
- Japan
- Prior art keywords
- weight
- compressor
- vibration absorbing
- absorbing device
- electric compressor
- 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
- 230000006835 compression Effects 0.000 claims description 7
- 238000007906 compression Methods 0.000 claims description 7
- 230000000694 effects Effects 0.000 description 6
- 238000010521 absorption reaction Methods 0.000 description 5
- 239000002184 metal Substances 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 238000005057 refrigeration Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000004806 packaging method and process Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F7/00—Vibration-dampers; Shock-absorbers
- F16F7/10—Vibration-dampers; Shock-absorbers using inertia effect
- F16F7/104—Vibration-dampers; Shock-absorbers using inertia effect the inertia member being resiliently mounted
- F16F7/116—Vibration-dampers; Shock-absorbers using inertia effect the inertia member being resiliently mounted on metal springs
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Compressor (AREA)
- Vibration Prevention Devices (AREA)
Description
【発明の詳細な説明】
本発明は、電動圧縮機の圧縮機運転中に生じる
振動を低減するためのいわゆるダイナミツクダン
パーの原理にもとづいた吸振装置に関するもので
ある。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a vibration absorbing device based on the principle of a so-called dynamic damper for reducing vibrations generated during compressor operation of an electric compressor.
従来、この種の吸振装置は第６図に示すように
圧縮機の密閉容器ａの外壁に鋼棒からなる重錘柄
ｂを溶接手段により取付け、その重錘柄ｂの先端
に鉄などの重錘ｃを取付ける構造であつた。とこ
ろが、かかる従来の構造は、充分な吸振効果を得
るために、重錘ｃを十分に重くするとともに、重
錘ｃの取付け位置を密閉容器ａの外壁からさらに
外方に十分に大きな距離を確保しなくてはならず
その結果、重錘柄ｂは長いものが必要であつた。 Conventionally, this type of vibration absorbing device has a weight handle b made of a steel rod attached to the outer wall of a closed container a of a compressor by welding means, as shown in Fig. 6, and a heavy weight such as iron is attached to the tip of the weight handle b. It had a structure to which a weight c was attached. However, in this conventional structure, in order to obtain a sufficient vibration absorption effect, the weight c is made sufficiently heavy, and the mounting position of the weight c is secured at a sufficiently large distance outward from the outer wall of the sealed container a. As a result, the weight handle b needed to be long.
したがつて、上記従来の構造は、特に運搬時の
強い衝撃などによつて重錘柄ｂの曲がりや圧縮機
の運転による重錘柄ｂの疲労破壊といつた問題が
発生する欠点を有していた。 Therefore, the conventional structure described above has the drawback that problems such as bending of the weight handle b due to strong impact during transportation and fatigue failure of the weight handle b due to compressor operation occur. was.
さらに、この従来の吸振装置は、圧縮機の側方
へ長く突出しているために、圧縮機の輸送のため
の梱包が大形化かつ複雑化となり、また重錘柄ｂ
が長いために、冷凍装置への組込みにおいては、
その作業性が悪く、あわせて冷凍装置が大形化に
なるものであつた。また、大きな吸振効果の生ず
る周波数は重錘柄ｂの剛性、長さ、重錘により限
定されるため吸振効果の得られる周波数は非常に
範囲が狭く周波数の異なる電源で使用する場合に
は吸振効果が少なくなつたり、逆に圧縮機の振動
が大きくなる場合も生じる欠点があつた。 Furthermore, since this conventional vibration absorbing device protrudes long to the side of the compressor, the packaging for transporting the compressor becomes large and complicated, and the weight handle b
Due to the long length, when incorporating it into refrigeration equipment,
The workability was poor, and the refrigeration equipment had to be large in size. In addition, the frequency at which a large vibration absorption effect occurs is limited by the rigidity, length, and weight of the weight handle b, so the frequency range at which a vibration absorption effect is obtained is very narrow, and when used with a power source with a different frequency, the vibration absorption effect is limited. There were also disadvantages in that the vibration of the compressor decreased or conversely the vibration of the compressor increased.
本発明は、上記従来の吸振装置にみられる欠点
を解消するものである。 The present invention eliminates the drawbacks found in the conventional vibration absorbing devices described above.
そのための構成として、本発明は、密閉容器の
内部に、電動機とこの電動機によつて駆動される
圧縮機構部をそれぞれ固定して電動圧縮機を構成
し、前記密閉容器の外壁に取付金具を配設し、さ
らに一部に重錘を固定しかつ前記電動圧縮機の外
周を取り囲む環状の弾性支持体を前記取付金具に
取付けたものである。 As a configuration for this purpose, the present invention configures an electric compressor by fixing an electric motor and a compression mechanism section driven by the electric motor inside an airtight container, and disposing a mounting bracket on the outer wall of the airtight container. Further, an annular elastic support body having a weight fixed to a part thereof and surrounding the outer periphery of the electric compressor is attached to the mounting bracket.
以下、本発明をその一実施例を示す図面の第１
図〜第５図を参考に説明する。 Hereinafter, the first embodiment of the present invention will be described.
This will be explained with reference to FIGS.
まず、第１図、第２図により、電動圧縮機の概
略構造について説明する。 First, a schematic structure of an electric compressor will be explained with reference to FIGS. 1 and 2.
同図において、１は密閉容器で、その内部には
上方に電動機要素を構成する固定子２と回転子３
が配設され、また下方には前記電動機要素によつ
て直接駆動される圧縮機構部４が配設されてい
る。この圧縮機構部４は、ピストン５、シヤフト
６、ベーン７などの可動部分と、シリンダ８、軸
受９，１０などの固定部分より構成されている。 In the figure, reference numeral 1 denotes a closed container, inside which a stator 2 and a rotor 3, which constitute electric motor elements, are placed above.
is disposed, and a compression mechanism section 4 directly driven by the electric motor element is disposed below. The compression mechanism section 4 is composed of movable parts such as a piston 5, shaft 6, and vane 7, and fixed parts such as a cylinder 8 and bearings 9 and 10.
つぎに、上記構成からなる電動圧縮機に本発明
の一実施例における吸振装置を取付けた構造につ
いて第３図〜第５図により説明する。 Next, a structure in which a vibration absorbing device according to an embodiment of the present invention is attached to the electric compressor having the above configuration will be explained with reference to FIGS. 3 to 5.
同図において、１３は密閉容器１の側部に吸振
装置１１の支持体１２を取付けるための板金具で
ある。前記吸振装置１１は、密閉容器１の外周を
とり囲む環状の支持体１２と重錘１４とからなり
重錘１４は環状の支持体１２に固定されている。
この吸振装置１１を板金具１５とボルト１６によ
つて密閉容器１に溶接された板金具１３に固定す
る。重錘１４の質量と支持体１２のバネ定数は、
前記電動圧縮機の回転中心に対する吸振装置１１
の個有振動数が圧縮機の運転回転数とほぼ等しく
なるように選定されている。 In the figure, reference numeral 13 denotes a metal plate for attaching the support 12 of the vibration absorbing device 11 to the side of the closed container 1. The vibration absorbing device 11 includes an annular support 12 surrounding the outer periphery of the closed container 1 and a weight 14, and the weight 14 is fixed to the annular support 12.
This vibration absorbing device 11 is fixed to a metal plate 13 welded to the closed container 1 by a metal plate 15 and bolts 16. The mass of the weight 14 and the spring constant of the support body 12 are:
Vibration absorbing device 11 for the rotation center of the electric compressor
The characteristic frequency of the compressor is selected so that it is approximately equal to the operating rotation speed of the compressor.
また、第５図は重錘１４の支持体１１への固定
をプツシユナツト１７を使用して行つた例であ
り、本構造によれば重錘１４は環状の支持体１２
の任意の位置に固定することができ、圧縮機の運
転回転数により吸振装置１１の固有振動数を調節
することができる。 Further, FIG. 5 shows an example in which the weight 14 is fixed to the support 11 using a push nut 17. According to this structure, the weight 14 is fixed to the annular support 11.
The vibration absorbing device 11 can be fixed at any arbitrary position, and the natural frequency of the vibration absorbing device 11 can be adjusted depending on the operating rotation speed of the compressor.
上記構成において、電動機要素を駆動すれば、
圧縮機構部４は一定回転数で回転し、吸振装置１
１はこれによつて発生する振動に付随して振動す
る。そして周知の原理により圧縮機の振動が軽減
される。 In the above configuration, if the electric motor element is driven,
The compression mechanism section 4 rotates at a constant rotation speed, and the vibration absorbing device 1
1 vibrates along with the vibrations generated thereby. The vibrations of the compressor are then reduced according to well-known principles.
したがつて、支持体１２の剛性、長さを適当に
選ぶことにより、吸振装置が密閉容器１の外方に
張り出す寸法を小さくすることができる。その結
果、冷凍機への組込みが容易となり、また重錘１
４の位置を圧縮機の密閉容器１の近くに持つてく
ることができるため、輸送時の強いシヨツクに対
しての支持体１２の変形防止対策も容易に行うこ
とができる。また、圧縮機を吸振装置１１と別に
して輸送すれば、圧縮機の梱包の大きさや輸送機
関内の占有体積が小さくなる。しかも、圧縮機に
板金具１３を取付けるのみであるため、わずかに
余分のコストがかかるだけで、吸振装置１１を必
要とする圧縮機も、必要としない圧縮機も共通に
生産できる利点がある。また、支持体１２に固定
する重錘１４の位置を調節可能な構造にすること
により吸振装置１１の固有振動数を変えることが
できるため、圧縮機の運転回転数により重錘１４
の固定位置を調節し、吸振効果の最も大きなとこ
ろで使用することができる。 Therefore, by appropriately selecting the rigidity and length of the support body 12, the extent to which the vibration absorbing device protrudes outward from the closed container 1 can be reduced. As a result, it is easy to integrate into the refrigerator, and the weight of 1
4 can be placed near the airtight container 1 of the compressor, measures can be easily taken to prevent deformation of the support body 12 against strong shocks during transportation. Moreover, if the compressor is transported separately from the vibration absorbing device 11, the size of the packaging of the compressor and the volume occupied in the transport vehicle are reduced. Moreover, since the sheet metal fitting 13 is only attached to the compressor, there is an advantage that compressors that require the vibration absorbing device 11 and compressors that do not require it can be produced in common, with only a slight extra cost. Furthermore, by making the position of the weight 14 fixed to the support body 12 adjustable, the natural frequency of the vibration absorbing device 11 can be changed.
By adjusting the fixing position, it can be used where the vibration absorption effect is greatest.
以上のように、本発明における電動圧縮機の吸
振装置は、密閉容器の内部に、電動機とこの電動
機によつて駆動される圧縮機構部をそれぞれ固定
して電動圧縮機を構成し、前記密閉容器の外壁に
取付金具を配設し、さらに一部に重錘を固定し、
かつ前記電動圧縮機の外周をとり囲む環状の弾性
支持体を前記取付金具に取付けたもので、環状の
支持体にて重錘を支持するため、従来の如く棒状
の重錘柄にて重錘を支持する構造に比してその突
出寸法が小さくでき、圧縮機全体を小形にして冷
凍装置への組込みを容易にすることができ、さら
に重錘は着脱可能であるため、輸送時に別梱包と
して落下衝撃などに際しての吸振装置の破損が防
止でき、しかも重錘位置を適当に調節すれば従来
と同様に効果的な振動吸収効果が得られるなど、
種々の利点を有するものである。 As described above, the vibration absorbing device for an electric compressor according to the present invention configures an electric compressor by fixing an electric motor and a compression mechanism section driven by the electric motor inside an airtight container. Installing mounting brackets on the outer wall of the building, and fixing a weight to a part of the
In addition, an annular elastic support that surrounds the outer periphery of the electric compressor is attached to the mounting bracket, and since the annular support supports the weight, the weight cannot be supported using a bar-shaped weight handle as in the conventional case. The protruding dimensions of the compressor can be made smaller than the supporting structure, making the entire compressor smaller and easier to incorporate into refrigeration equipment.Furthermore, the weight is removable, so it can be packed separately during transportation. Damage to the vibration absorbing device can be prevented in the event of a fall impact, etc., and if the weight position is adjusted appropriately, the same effective vibration absorbing effect as before can be obtained.
It has various advantages.
第１図は電動圧縮機の概略構造を示す縦断面
図、第２図は第１図の−線による横断面図、
第３図および第４図はそれぞれ本発明の一実施例
における電動圧縮機の吸振装置の取付け状態を示
す平面図および側面図、第５図は同吸振装置にお
ける重錘の支持体への固定位置を調節可能にした
構造を示す要部断面平面図、第６図は従来例を示
す吸振装置を具備した圧縮機の側断面図である。
１……密閉容器、２……固定子、３……回転
子、４……圧縮機構部、１２……支持体、１４…
…重錘。
Fig. 1 is a vertical cross-sectional view showing the schematic structure of an electric compressor, Fig. 2 is a cross-sectional view taken along the - line in Fig. 1,
3 and 4 are a plan view and a side view, respectively, showing the mounting state of a vibration absorbing device for an electric compressor according to an embodiment of the present invention, and FIG. FIG. 6 is a cross-sectional side view of a conventional compressor equipped with a vibration absorbing device. DESCRIPTION OF SYMBOLS 1...Airtight container, 2...Stator, 3...Rotor, 4...Compression mechanism part, 12...Support body, 14...
...Weight.
Claims (1)
つて駆動される圧縮機構部をそれぞれ固定して電
動圧縮機を構成し、前記密閉容器の外壁に取付金
具を配設し、さらに一部に重錘を固定し、かつ前
記電動圧縮機の外周を取り囲む環状の弾性支持体
を前記取付金具に取付けた電動圧縮機の吸振装
置。 ２ 重錘の弾性支持体への固定位置を調節可能に
した特許請求の範囲第１項に記載の電動圧縮機の
吸振装置。[Claims] 1. An electric compressor is configured by fixing an electric motor and a compression mechanism driven by the electric motor inside a closed container, and a mounting bracket is provided on the outer wall of the closed container. A vibration absorbing device for an electric compressor, further comprising: a weight fixed to a portion thereof; and an annular elastic support surrounding the outer periphery of the electric compressor, which is attached to the mounting bracket. 2. The vibration absorbing device for an electric compressor according to claim 1, wherein the fixing position of the weight to the elastic support is adjustable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57117295A JPS599334A (en) | 1982-07-05 | 1982-07-05 | Vibration absorbing device of motor-driven compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57117295A JPS599334A (en) | 1982-07-05 | 1982-07-05 | Vibration absorbing device of motor-driven compressor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS599334A JPS599334A (en) | 1984-01-18 |
| JPS6321052B2 true JPS6321052B2 (en) | 1988-05-02 |
Family
ID=14708214
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57117295A Granted JPS599334A (en) | 1982-07-05 | 1982-07-05 | Vibration absorbing device of motor-driven compressor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS599334A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0310463Y2 (en) * | 1985-07-15 | 1991-03-14 | ||
| US5637938A (en) * | 1994-08-16 | 1997-06-10 | Whirlpool Corporation | Tuned dynamic vibration absorber |
-
1982
- 1982-07-05 JP JP57117295A patent/JPS599334A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS599334A (en) | 1984-01-18 |
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