JPH0579831B2 - - Google Patents
Info
- Publication number
- JPH0579831B2 JPH0579831B2 JP61285A JP61285A JPH0579831B2 JP H0579831 B2 JPH0579831 B2 JP H0579831B2 JP 61285 A JP61285 A JP 61285A JP 61285 A JP61285 A JP 61285A JP H0579831 B2 JPH0579831 B2 JP H0579831B2
- Authority
- JP
- Japan
- Prior art keywords
- internal device
- stator
- motor compressor
- spring
- external force
- 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 - Lifetime
Links
- 230000005484 gravity Effects 0.000 claims description 10
- 238000006073 displacement reaction Methods 0.000 description 6
- 230000003068 static effect Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
Landscapes
- Vibration Prevention Devices (AREA)
- Compressor (AREA)
Description
【発明の詳細な説明】
［発明の技術分野］
本発明はモータ圧縮機、特にその内部装置の支
持手段を改良したモータ圧縮機に係る。DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a motor compressor, and more particularly to a motor compressor having improved means for supporting its internal equipment.
［発明の技術的背景とその問題点］
従来のモータ圧縮機においては、その内部装置
は次のようにして支持されている。その一つは圧
縮機筐体から内部装置をスプリングで吊下げて支
持するものであり、他の一つは内部装置のステー
タ下端にスプリングを取付け、これを介して圧縮
機筐体に支持させるものであつた。前者の支持手
段によれば、内部装置の重心近傍で内部装置を支
持できるので、振動の発生を抑止し得る。しかし
乍ら支持部の構造上、筐体内にスペースが必要で
あり、筐体、従つてモータ圧縮機の小型化が困難
であつた。これに対し、後者の支持手段によれ
ば、筐体内にスペースを必要とせず、圧縮機の小
型化が可能である。しかし乍ら内部装置の重心が
支持装置よりも上方にあるため、連成振動を生じ
易く、モータ圧縮の振動が大きくなる欠点があつ
た。[Technical background of the invention and its problems] In a conventional motor compressor, its internal device is supported as follows. One is to suspend and support the internal device from the compressor casing with a spring, and the other is to attach a spring to the lower end of the stator of the internal device and support it on the compressor casing via this. It was hot. According to the former supporting means, it is possible to support the internal device near the center of gravity of the internal device, thereby suppressing the occurrence of vibration. However, due to the structure of the support portion, space is required within the housing, making it difficult to downsize the housing and therefore the motor compressor. On the other hand, according to the latter support means, no space is required within the housing, and the compressor can be made smaller. However, since the center of gravity of the internal device is located above the support device, coupled vibrations are likely to occur, and the motor compression vibrations become large.
［発明の目的］
本発明は上記の事情に基きなされたもので、内
部装置の振動を抑制すると共に小型化が可能のモ
ータ圧縮機を得ることを目的としている。[Object of the Invention] The present invention has been made based on the above-mentioned circumstances, and an object of the present invention is to obtain a motor compressor that can suppress vibrations of internal devices and can be downsized.
［発明の概要］
本発明のモータ圧縮機は、筐体内にスプリング
で弾性支持される内部装置を有するものにおい
て、前記筐体内底面と前記ステータ間に弾設され
るスプリングの上端を、前記ステータの下面に設
けた盲穴の上底面で支持させたことを特徴とす
る。[Summary of the Invention] The motor compressor of the present invention has an internal device elastically supported by a spring in a housing, and the upper end of the spring elastically installed between the bottom surface of the housing and the stator is connected to the upper end of the spring. It is characterized by being supported by the upper bottom surface of a blind hole provided on the lower surface.
［発明の実施例］
第１図は本発明の一実施例を示す。この図にお
いて、モータ圧縮機の内部装置１のステータ２の
下面４隅には前記下面に垂直な盲穴３が設けてあ
り、盲穴３の底面には筐体４内底面に設けられた
突起５と同様の突起６が設けられている。内部装
置１は両端を各突起５，６に係合させたスプリン
グ７を介して筐体内底面に支持されている。第２
図は上記構成の本発明モータ圧縮機の振動系のブ
ロツク図で、この図中、Ｆは外力、Ｇは内部装置
の重心、k1はスプリング７の水平方向ばね定数、
k2は垂直方向ばね定数、Ｋは回転ばね定数、ｃは
重心からステータ１の支持点までの垂直距離、２
ａは内部装置の幅、２ｂはその高さである。[Embodiment of the Invention] FIG. 1 shows an embodiment of the invention. In this figure, blind holes 3 perpendicular to the lower surface are provided at the four corners of the lower surface of the stator 2 of the internal device 1 of the motor compressor, and the bottom surface of the blind holes 3 is provided with a projection provided on the inner bottom surface of the casing 4. A protrusion 6 similar to 5 is provided. The internal device 1 is supported on the bottom surface of the housing via a spring 7 whose both ends are engaged with respective protrusions 5 and 6. Second
The figure is a block diagram of the vibration system of the motor compressor of the present invention having the above-mentioned configuration. In this figure, F is the external force, G is the center of gravity of the internal device, k1 is the horizontal spring constant of the spring 7,
k 2 is the vertical spring constant, K is the rotational spring constant, c is the vertical distance from the center of gravity to the support point of stator 1, 2
a is the width of the internal device and 2b is its height.
以下上記構成の本発明のモータ圧縮機について
振動論的に考察する。まず、モータ圧縮機に作用
する外力は、大別してその起動、停止時に作用す
る瞬間的な外力と定常運転中作用する動的外力と
がある。これらの外力を受けた時の筐への伝達力
を少くするために通常内部装置は筐体に対して弾
性支持される。而して、起動、停止時に作用する
外力は周期的な力ではないので、静的な外力とし
て取扱うことができる。この外力をＦとして、上
記の振動系の釣合いの式は、
Ｆ−2k1（ｘ−θc）＝０
Fb＋2k1xc−2k1θc2
＋2K2θa2−2kθ＝０‥ (1)
ここで、ｘは重心のｘ方向変位、ｙはｙ方向変
位、θは回転方向変位である。 Below, the motor compressor of the present invention having the above configuration will be discussed from a vibrational perspective. First, the external forces that act on the motor compressor can be broadly classified into instantaneous external forces that act on the motor compressor when it starts or stops, and dynamic external forces that act on the motor compressor during steady operation. In order to reduce the force transmitted to the casing when receiving these external forces, the internal device is usually elastically supported by the casing. Since the external force that acts upon starting and stopping is not a periodic force, it can be treated as a static external force. Letting this external force be F, the equation for the balance of the above vibration system is F-2k 1 (x-θc)=0 Fb+2k 1 xc-2k 1 θc 2 +2K 2 θa 2 -2kθ=0‥ (1) Here, x is the displacement of the center of gravity in the x direction, y is the displacement in the y direction, and θ is the displacement in the rotational direction.
θは式(1)から導かれる次式(2)によつて現され
る。 θ is expressed by the following equation (2) derived from equation (1).
θ＝Ｆ（ｂ＋ｃ）／２（Ｋ＋k2a2） ……(2)
式(2)から内部装置が静的な外力Ｆを受けた時
に、回転方向変位を起さないためには、
ｃ＝−ｂ
すなわち、外力Ｆの作用線上に時手段の支持点を
設ければよい。 θ=F(b+c)/2(K+k 2 a 2 )...(2) From equation (2), when the internal device receives a static external force F, in order to prevent rotational displacement, c= -b That is, the support point of the time means may be provided on the line of action of the external force F.
また、動的な外力を受ける場合の運動方程式は
次式(3)で現される。 Furthermore, the equation of motion when receiving a dynamic external force is expressed by the following equation (3).
mx¨＝Ｆ−2k1（ｘ−θc）
Iθ¨＝Fb＋2k1×ｃ−2k1θc2
＋2k2θa2−2kθ ……(3)
ここで、ｍは内部装置の質量、はその慣性モ
ーメントである。mx¨=F−2k 1 (x−θc) Iθ¨=Fb+2k 1 ×c−2k 1 θc 2 +2k 2 θa 2 −2kθ ……(3) Here, m is the mass of the internal device, and m is its moment of inertia. be.
この式から、動的な外力を受けた時各自由度方
向に生じた変位が連成しない、つまり互いに独立
な変位をするためには、ｃ＝０、すなわち重心を
通る水平面に支持手段の支持点を設ければよい。 From this equation, in order for the displacements that occur in the directions of each degree of freedom to be uncoupled when receiving a dynamic external force, that is, for the displacements to be independent of each other, c = 0, that is, the support means should be supported on the horizontal plane passing through the center of gravity. All you have to do is set a point.
上記から明らかなように、内部装置に作用する
外力に対する静的な度合いを考える場合には外力
の作用線方向に近い位置に盲穴３を設け、動的な
力の連成を考える時には前記支持点を重心を通る
水平面にできるだけ近い位置に設けるようにすれ
ばよい。 As is clear from the above, when considering the static degree to the external force acting on the internal device, the blind hole 3 is provided at a position close to the line of action of the external force, and when considering the coupling of dynamic forces, the blind hole 3 is provided at a position close to the line of action of the external force. The point may be placed as close as possible to the horizontal plane passing through the center of gravity.
結局、ステータ２における支持点を内部装置１
の重心からステータ２の上面までの間に設ければ
静的、動的双方の外力に対して良く対処すること
ができる。 In the end, the support point of the stator 2 is connected to the internal device 1.
If it is provided between the center of gravity of the stator 2 and the upper surface of the stator 2, both static and dynamic external forces can be well coped with.
［発明の効果］
上記から明らかなように、本発明においては、
内部装置のステータに盲穴を設け、その中に筐体
に対するステータの支持点を設けているので、内
部装置の重心に対して支持点を振動論的に動的、
静的何れの外力に対しても十分に対処し得る位置
に選定しても、筐体内に大きなスペースを必要と
せずモータ圧縮機の小型化が可能である。[Effect of the invention] As is clear from the above, in the present invention,
A blind hole is provided in the stator of the internal device, and a support point for the stator relative to the casing is provided in the blind hole, so that the support point can be dynamically and vibrationally adjusted relative to the center of gravity of the internal device.
Even if the position is selected so that it can sufficiently cope with any static external force, it is possible to downsize the motor compressor without requiring a large space within the housing.
第１図は本発明−実施例の一部を切欠して斜視
図、第２図はその振動系のブロツク図である、
１……内部装置、２……ステータ、３……盲
穴、４……筐体、５，６……突起、７……スプリ
ング。
Fig. 1 is a partially cutaway perspective view of an embodiment of the present invention, and Fig. 2 is a block diagram of its vibration system. 1... Internal device, 2... Stator, 3... Blind hole, 4 ...Casing, 5, 6...Protrusion, 7...Spring.
Claims (1)
置を有するものにおいて、前記筐体内底面と前記
ステータ間に弾設されるスプリングの上端を、前
記ステータの下面に設けた盲穴の上底面で支持さ
せたことを特徴とするモータ圧縮機。 ２ 前記スプリング上端の支持点を、前記内部装
置の重心から前記ステータ上端面までの間に設け
たことを特徴とする特許請求の範囲第１項記載の
モータ圧縮機。[Scope of Claims] 1. In a housing having an internal device elastically supported by a spring, the upper end of the spring elastically installed between the bottom surface of the housing and the stator is connected to a blind hole provided in the lower surface of the stator. A motor compressor characterized in that it is supported on the upper bottom surface of the motor compressor. 2. The motor compressor according to claim 1, wherein a support point for the upper end of the spring is provided between the center of gravity of the internal device and the upper end surface of the stator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61285A JPS61160587A (en) | 1985-01-07 | 1985-01-07 | Motor compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61285A JPS61160587A (en) | 1985-01-07 | 1985-01-07 | Motor compressor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61160587A JPS61160587A (en) | 1986-07-21 |
| JPH0579831B2 true JPH0579831B2 (en) | 1993-11-04 |
Family
ID=11478551
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61285A Granted JPS61160587A (en) | 1985-01-07 | 1985-01-07 | Motor compressor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61160587A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100371592C (en) * | 2002-10-31 | 2008-02-27 | 松下冷机株式会社 | Hermetic Electric Compressors and Refrigerators |
-
1985
- 1985-01-07 JP JP61285A patent/JPS61160587A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100371592C (en) * | 2002-10-31 | 2008-02-27 | 松下冷机株式会社 | Hermetic Electric Compressors and Refrigerators |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61160587A (en) | 1986-07-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US3330515A (en) | Machine installation | |
| EP0694660A2 (en) | Vertical vibration control device | |
| JPH0579831B2 (en) | ||
| JPS58187589A (en) | Vibration isolation device for hermetic electric compressor | |
| JPH1151111A (en) | Damping device | |
| JPH031484B2 (en) | ||
| JP3421088B2 (en) | Seismic isolation floor equipment and floor | |
| JP3293865B2 (en) | Built-in double vibration isolator | |
| JP3627269B2 (en) | 3D seismic isolation device | |
| JP2541871B2 (en) | Seismic isolation floor structure | |
| JP3254919B2 (en) | Three-dimensional seismic isolation device | |
| JPH08322111A (en) | Suspended thyristor valve | |
| JP3068302B2 (en) | Pendulum damping device | |
| JPH0528273Y2 (en) | ||
| JPH031686B2 (en) | ||
| JPH0415877Y2 (en) | ||
| JPH05248490A (en) | Vibration control device for internal pump | |
| JPH061520U (en) | Partition device | |
| JPH054510Y2 (en) | ||
| JP4971759B2 (en) | Mass damper and beam damping structure using it | |
| JPS6245093Y2 (en) | ||
| JPH0724345B2 (en) | Anti-vibration device for electronic equipment | |
| JPS60237180A (en) | Closed type rotary compressor | |
| JP2939913B2 (en) | Long-period dynamic vibration absorber for structures | |
| JPH0328198Y2 (en) |