JPS6019992Y2 - Hermetic electric compressor - Google Patents
Hermetic electric compressorInfo
- Publication number
- JPS6019992Y2 JPS6019992Y2 JP9706579U JP9706579U JPS6019992Y2 JP S6019992 Y2 JPS6019992 Y2 JP S6019992Y2 JP 9706579 U JP9706579 U JP 9706579U JP 9706579 U JP9706579 U JP 9706579U JP S6019992 Y2 JPS6019992 Y2 JP S6019992Y2
- Authority
- JP
- Japan
- Prior art keywords
- case
- circular opening
- electric compressor
- hermetic electric
- curvature
- 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
Landscapes
- Compressor (AREA)
Description
【考案の詳細な説明】
本考案は密閉ケースの共振を防止するようにした密閉型
電動圧縮機に関する。[Detailed Description of the Invention] The present invention relates to a hermetic electric compressor that prevents resonance of a hermetic case.
密閉型電動圧縮機は、密閉ケース内部に収納する電動圧
縮機の発生する振動と密閉ケースが共振現象を起こし、
大きな騒音源となることがある。In a hermetically sealed electric compressor, the vibration generated by the electric compressor housed inside the hermetically sealed case and the hermetically sealed case cause a resonance phenomenon.
May be a source of loud noise.
そのため、密閉ケースの形状を球形にするか、水平断面
を楕円形にするなどの対策が行なわれて来た。Therefore, countermeasures have been taken, such as making the shape of the sealed case spherical or making the horizontal cross section elliptical.
しかし、これは単に剛性を強くし、よって共振周波数を
高い方にずらす効果が主であり低次モードの振動や変動
を十分に低減し得るものではない上に、楕円形の場合は
円形に比べて製造が難しくなるものであった。However, this mainly has the effect of simply increasing the rigidity and thereby shifting the resonance frequency to a higher side, and does not sufficiently reduce vibrations and fluctuations in low-order modes. This made manufacturing difficult.
本考案は、これらの問題点を解決するためになされたも
ので、以下本考案をその実施例を示す第１図、第２図、
第３図を参考に説明する。The present invention was devised to solve these problems, and the present invention will be described below with reference to FIGS.
This will be explained with reference to FIG.
第１図は本考案による密閉型電動圧縮機の概略断面図で
１は上方の第１ケース、２は下方の第２ケース、３は電
動圧縮要素である。FIG. 1 is a schematic cross-sectional view of a hermetic electric compressor according to the present invention, where 1 is an upper first case, 2 is a lower second case, and 3 is an electric compression element.
第１ケース１は、円形開口部１ａに近接して、前記円形
開口部より十分中さい曲率のコーナ一部４ａ、４ｂ、４
ｃを、円形開口部１ａを３等分する位置に配置し、この
各コーナ一部間には、前記円形開口部１ａより大きい曲
率のアール部５を有する複数の曲面にて構成されたドー
ム状の形をしている。The first case 1 has corner portions 4a, 4b, 4 which are close to the circular opening 1a and have a sufficiently medium curvature than the circular opening.
c is arranged at a position that divides the circular opening 1a into three equal parts, and between each corner is a dome-shaped curved surface composed of a plurality of curved surfaces having a radiused part 5 having a larger curvature than the circular opening 1a. It has the shape of
第２ケース２は略半球形で水平断面は円形である。The second case 2 has a substantially hemispherical shape and a circular horizontal cross section.
次にかかる構成における作用を説明する。Next, the operation of this configuration will be explained.
一般に円柱形もしくは球形のケースは、水平断面が円形
であるために、低次振動は加振位置を腹とするきれいな
モードをとる。In general, a cylindrical or spherical case has a circular horizontal cross section, so low-order vibration takes a clean mode with the antinode at the excitation position.
従って第２ケース２は球であるため加振位置を腹とする
きれいなモードの低次振動をし易いが、第１ケース１の
、コーナ一部４ａ、４ｂ、４ｃは曲率がその円形開口部
１ａの曲率より小さいため、非常に剛性が強く第１ケー
ス１は前記コーナ一部４ ａｔ ４ ｂ、４ ｃの各々
のコーナー間でそれぞれのコーナーを節とする振動モー
ドをとる（第２図鎖点で示す）。Therefore, since the second case 2 is a sphere, it is easy to cause low-order vibration in a clean mode with the excitation position as an antinode. Since the curvature is smaller than the curvature of ).
これらの振動モードの腹と節は、加振位置には関係なく
、加振位置は単に振動のレベルに影響を与えるだけのも
のである。The antinode and node of these vibration modes are not related to the excitation position, and the excitation position merely affects the vibration level.
第２ケース２を第１ケース１と溶接にて円形開口部１ａ
で接合する事により、密閉ケースの下部側の振動モード
の点対称性は崩されて、第１ケース１のコーナ一部４ａ
、 ４ｂ、 ４ｃに強く束縛される振動モードをと
るようになる。A circular opening 1a is formed by welding the second case 2 to the first case 1.
By joining, the point symmetry of the vibration mode on the lower side of the sealed case is broken, and the corner part 4a of the first case 1
, 4b, and 4c.
従って密閉ケース全体として、腹と節が固定された低次
モードの振動をする様になり、密閉ケース共振に影響を
与える加振力も限られたものとなり、振動レベル及び変
動の低減が図れる。Therefore, the sealed case as a whole vibrates in a low-order mode with fixed antinodes and nodes, and the excitation force that affects sealed case resonance is limited, making it possible to reduce the vibration level and fluctuation.
以上のように本考案は、円形開口部に近接して、前記円
形開口部より小さい曲率のコーナ一部を略均等に配置し
、各コーナ一部に前記円形開口部より大きい曲率のアー
ル部を有する複数の曲面にて構成されたドーム状の第１
ケースと円筒状あるいは半球状の第２ケースよりなる密
閉ケースを形成腰この密閉ケース内に電動要素並びに圧
縮要素を収納したもので、第１ケースを剛性を高めるた
めに製造の難しい楕円形にするような必要がなくなり、
開口部が円形のま）で堅牢にして、かつ低次振動に作用
し騒音の低減を図れる効果を有する。As described above, in the present invention, in the vicinity of a circular opening, portions of corners having a smaller curvature than the circular opening are arranged approximately evenly, and rounded portions having a curvature larger than the circular opening are provided at a portion of each corner. A dome-shaped first structure composed of a plurality of curved surfaces
A sealed case is formed by the case and a cylindrical or hemispherical second case.The electric element and compression element are housed within this sealed case.The first case is made into an oval shape, which is difficult to manufacture, to increase rigidity. There is no longer a need for
The opening is circular, making it sturdy, and has the effect of reducing noise by acting on low-order vibrations.
第１図は本考案の一実施例を示す密閉型電動圧縮機の断
面図、第２図は上面図、第３図は底面図である。
１・・・・・・第１ケース、２・・・・・・第２ケース
、４ａ〜４ｃ・・・・・・コーナ一部、５・・・・・・
アール部。FIG. 1 is a sectional view of a hermetic electric compressor showing an embodiment of the present invention, FIG. 2 is a top view, and FIG. 3 is a bottom view. 1...First case, 2...Second case, 4a to 4c...Part of corner, 5...
R department.
Claims (1)
のコーナ一部を略均等に配置し、各コーナ一部間に、前
記円形開口部より大きい曲率の、アール部を有する複数
の曲面にて構成されたドーム状の第１ケースと、円筒あ
るいは半球状の第２ケースよりなる密閉ケースを形威し
、この密閉ケース内に、電動要素並びに圧縮要素を収納
してなる密閉型電動圧縮機。Close to the circular opening, portions of corners having a smaller curvature than the circular opening are arranged approximately equally, and between each corner portion, a plurality of curved surfaces having rounded portions having a larger curvature than the circular opening. The hermetic electric compressor has a sealed case consisting of a dome-shaped first case and a cylindrical or hemispherical second case, and an electric element and a compression element are housed in the sealed case. .
Priority Applications (8)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP54089549A JPS6027831B2 (en) | 1979-07-13 | 1979-07-13 | Hermetic electric compressor |
| JP9706579U JPS6019992Y2 (en) | 1979-07-13 | 1979-07-13 | Hermetic electric compressor |
| SE8005054A SE447669B (en) | 1979-07-13 | 1980-07-09 | HERMETIC COMPRESSOR WITH AN ENGINE COMPRESSOR UNIT CONTAINED IN A SHELL |
| GB8022428A GB2057066B (en) | 1979-07-13 | 1980-07-09 | Hermetic motor compressor |
| DE3026189A DE3026189C2 (en) | 1979-07-13 | 1980-07-10 | Capsule for a refrigerant compressor |
| CA000356012A CA1152467A (en) | 1979-07-13 | 1980-07-11 | Hermetic motor compressor |
| US06/168,178 US4345882A (en) | 1979-07-13 | 1980-07-11 | Hermetic motor compressor |
| IT8049221A IT1143910B (en) | 1979-07-13 | 1980-07-11 | HERMETIC MOTOR-COMPRESSOR |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9706579U JPS6019992Y2 (en) | 1979-07-13 | 1979-07-13 | Hermetic electric compressor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5615472U JPS5615472U (en) | 1981-02-10 |
| JPS6019992Y2 true JPS6019992Y2 (en) | 1985-06-15 |
Family
ID=29329874
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9706579U Expired JPS6019992Y2 (en) | 1979-07-13 | 1979-07-13 | Hermetic electric compressor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6019992Y2 (en) |
-
1979
- 1979-07-13 JP JP9706579U patent/JPS6019992Y2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5615472U (en) | 1981-02-10 |
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