JPS58192449A - Stator for canned motor - Google Patents
Stator for canned motorInfo
- Publication number
- JPS58192449A JPS58192449A JP7375982A JP7375982A JPS58192449A JP S58192449 A JPS58192449 A JP S58192449A JP 7375982 A JP7375982 A JP 7375982A JP 7375982 A JP7375982 A JP 7375982A JP S58192449 A JPS58192449 A JP S58192449A
- Authority
- JP
- Japan
- Prior art keywords
- stator
- gas
- helium gas
- frame
- helium
- 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.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/08—Arrangements for cooling or ventilating by gaseous cooling medium circulating wholly within the machine casing
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/12—Casings or enclosures characterised by the shape, form or construction thereof specially adapted for operating in liquid or gas
- H02K5/128—Casings or enclosures characterised by the shape, form or construction thereof specially adapted for operating in liquid or gas using air-gap sleeves or air-gap discs
Abstract
Description
【発明の詳細な説明】
この発明は固定子巻線から発熱に対する放熱手段を備え
たキャントモ−トル用固定子の改良に関するものである
。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement in a stator for a canto motor which is equipped with a heat dissipation means for dissipating heat from the stator windings.
従来のこの種のものに固定子巻線や固定子鉄心に接触す
るように固定子枠内に樹脂を充填したものがあるが、上
記樹脂の材料費が高価となる上、上記充填時に加熱硬化
が必要である等製造上多大な手間を要し生産性が悪１ハ
。また、上記固定子巻線の過熱時にキャンの変形が生じ
る。また、重量が大となる等の欠ａな有してしλた。Conventional products of this kind include ones in which the stator frame is filled with resin so as to come into contact with the stator windings and stator core, but the material cost of the resin is high, and the material is heated and hardened during the filling process. It takes a lot of time and effort to manufacture, and productivity is poor. Further, the can is deformed when the stator winding is overheated. In addition, it did not have disadvantages such as increased weight.
この発明は以上のような従来の欠侭を解消するためにな
されたもので、以下１図に従ってこの発明の一実施例ｅ
こつｌハて説明する。図におり、Ｘで１は固定子鉄心、
１ａは固定子鉄心１の外周に形成された軸方向スリット
で、後述する混合ガスの通路となるものである。２は固
定子巻線、３は固定子鉄心１および１１：Ｊｌ固定子巻
線を囲繞すると共に、固定子鉄心１を空行する円筒状固
定子枠、４は外周が固定子枠３の一端ｅこ気密に溶接さ
れたリング状端板、５は外周が固定子枠８の他端に気密
に溶接されたリング状端板で、後述する混合ガスの封入
用のねじ孔からなる混合ガス封入口５−ａを有すもので
ある。６は固定子鉄心ｌの内周１こ嵌入すると共に、そ
の両端が対をなす端板４，５の内周に夫々気密に溶接さ
れた円筒状キャン、７はヘリウムガス（高絶縁性ガス）
とをヘリウムガス６０〜９０９６の割合（固定子巻線の
コロナ発生と絶縁低下を防ＩＩ：、する条件）で混合し
た混合ガスで、混合ガス封入口５ａから固定子巻線２の
両端部に封入されてなるものである。８は混合ガス封入
口５ａに螺着された栓である。This invention has been made to solve the above-mentioned deficiencies in the prior art, and one embodiment of the invention is shown below according to Figure 1.
I will explain the trick. In the figure, 1 in X is the stator core,
Reference numeral 1a denotes an axial slit formed on the outer periphery of the stator core 1, which serves as a passage for a mixed gas, which will be described later. 2 is a stator winding; 3 is a stator core 1 and 11; a cylindrical stator frame that surrounds the Jl stator winding and runs blankly over the stator core 1; 4 is a cylindrical stator frame whose outer periphery is one end of the stator frame 3; 5 is a ring-shaped end plate hermetically welded to the other end of the stator frame 8, and 5 is a ring-shaped end plate whose outer periphery is hermetically welded to the other end of the stator frame 8. It has an entrance 5-a. 6 is a cylindrical can that is fitted into the inner periphery of the stator core 1 and whose both ends are hermetically welded to the inner peripheries of the pair of end plates 4 and 5; 7 is helium gas (highly insulating gas);
and helium gas at a ratio of 60 to 9096 (conditions to prevent corona generation and insulation deterioration in the stator winding), from the mixed gas filling port 5a to both ends of the stator winding 2. It is enclosed. 8 is a stopper screwed onto the mixed gas filling port 5a.
このように構成されたものにおＬｌては、固定子巻線２
で発生した熱は固定鉄心１と固定子枠８を通じて放熱さ
れることは勿論のこと、混合ガス７と固定子枠８を通じ
ても放熱され、特にヘリウムガスが固定子鉄心１内に侵
入したり、固定子巻線２の絶縁ワニス中をこも侵入する
こと等によりその放熱率は従来の樹脂充填のものに比し
て著しく大である。また、混合ガス７を単に封入するだ
けであるので、従来の樹脂充填のものに比して製作時の
手間が少なくてよく、婦道である。また、固定子巻線２
の過熱時に最初に混合ガス７が圧縮される。なお、６フ
ツ化硫黄ガスの代り１こ空気を用し１てもよし１が、６
フツ化硫黄ガスは結露することがなし１ので絶縁低下防
１ヒ上極めて有効である。In the case configured in this way, the stator winding 2
The heat generated is not only radiated through the fixed core 1 and the stator frame 8, but also through the mixed gas 7 and the stator frame 8, and especially when helium gas enters the stator core 1, The heat dissipation rate is significantly higher than that of conventional resin-filled ones due to the fact that it penetrates into the insulating varnish of the stator winding 2. In addition, since the mixed gas 7 is simply sealed, it requires less time and effort to manufacture compared to conventional resin-filled ones, which is more convenient. In addition, stator winding 2
During superheating, the mixed gas 7 is first compressed. Note that 1 air may be used instead of sulfur hexafluoride gas.
Since sulfur fluoride gas does not cause dew condensation, it is extremely effective in preventing insulation deterioration.
この発明は以上のようにキャントモ−トル用固定子にお
し１て、固定子鉄心および固定子巻線に接するようにヘ
リウムガスと、該ヘリウムガスより高絶縁性ガスとの混
合ガスを固定子枠内に封入したので、従来の樹脂成形の
ものに比して放熱率がよく小形化できるだけでなく生産
性がよく、＠量、安価となる上固定子巻線が過熱しても
上記混合ガスが圧縮されることでキャン等構造物が変形
等の損傷を生じることを防１Ｆできる。しカーも、高絶
縁性ガスを混合したので、上記固定子巻線の絶縁の低下
も防止できる等極めて蝙れた効果がある。As described above, this invention provides a stator for a canto motor, and a mixed gas of helium gas and a gas with higher insulating properties than the helium gas is applied to the stator so as to be in contact with the stator core and stator windings. Since it is enclosed within the frame, it not only has a better heat dissipation rate than conventional resin molded ones and can be made smaller, but also has better productivity, lower quantity, and lower cost.Even if the upper stator winding overheats, the above mixed gas can be removed. By being compressed, structures such as cans can be prevented from being damaged such as deformation. Also, since a highly insulating gas is mixed therein, it has extremely effective effects such as preventing deterioration of the insulation of the stator windings.
図はこの発明の一実施例の一部切欠断面図である。図に
おし１て１は固定子鉄心、２は固定子巻線 １．８は
固定子枠、５は端板、５ａは混合ガス封入口、７は混合
ガス、８は栓である。The figure is a partially cutaway sectional view of an embodiment of the present invention. In the figure, 1 is a stator core, 2 is a stator winding, 1.8 is a stator frame, 5 is an end plate, 5a is a mixed gas filling port, 7 is a mixed gas, and 8 is a stopper.
Claims (3)
ヘリウムガスと、該ヘリウムガスより高絶縁性ガスとの
混合ガスを固定子枠内に封入したことを特徴とするキャ
ントモ−トル用固定子。(1) A fixing for a cant motor, characterized in that a mixed gas of helium gas and a gas with higher insulating properties than the helium gas is sealed in the stator frame so as to surround the stator core and stator windings. Child.
ウムガスを６０〜９０％の即ｊ合で混合したことを特徴
とする特許請求の範囲第１項記載のキャントモ−トル用
固定子。(2) A stator for a cant motor according to claim 1, characterized in that the mixed gas is composed of helium gas and air, and the helium gas is mixed at a ratio of 60 to 90%.
構成し、ヘリウムガスを６０〜９０％の割合で混合した
ことを特徴とする特許請求の範囲第１ ’頁ｓ己載のキ
ャントモ−トル用固定子。(3) The mixed gas is composed of helium gas and 67 sulfur fluoride gas, and the helium gas is mixed at a ratio of 60 to 90%. Stator for torque.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7375982A JPS58192449A (en) | 1982-04-30 | 1982-04-30 | Stator for canned motor |
| US06/490,414 US4486677A (en) | 1982-04-30 | 1983-05-02 | Encased electric motor employing gas as heat dissipating means |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7375982A JPS58192449A (en) | 1982-04-30 | 1982-04-30 | Stator for canned motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58192449A true JPS58192449A (en) | 1983-11-09 |
| JPH0147103B2 JPH0147103B2 (en) | 1989-10-12 |
Family
ID=13527473
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7375982A Granted JPS58192449A (en) | 1982-04-30 | 1982-04-30 | Stator for canned motor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58192449A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS646759U (en) * | 1987-06-30 | 1989-01-13 | ||
| WO1999045626A1 (en) * | 1998-03-04 | 1999-09-10 | Ebara Corporation | Submerged electric motor |
| KR100870738B1 (en) | 2007-01-25 | 2008-11-26 | 태창엔이티 주식회사 | AFPM coreless multi-generator and motor |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3777194A (en) * | 1971-10-06 | 1973-12-04 | Franklin Electric Co Inc | Submersible motor with protective end bells |
| JPS56141741A (en) * | 1980-04-03 | 1981-11-05 | Mitsubishi Electric Corp | Canned type electric rotary machine |
-
1982
- 1982-04-30 JP JP7375982A patent/JPS58192449A/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3777194A (en) * | 1971-10-06 | 1973-12-04 | Franklin Electric Co Inc | Submersible motor with protective end bells |
| JPS56141741A (en) * | 1980-04-03 | 1981-11-05 | Mitsubishi Electric Corp | Canned type electric rotary machine |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS646759U (en) * | 1987-06-30 | 1989-01-13 | ||
| WO1999045626A1 (en) * | 1998-03-04 | 1999-09-10 | Ebara Corporation | Submerged electric motor |
| KR100870738B1 (en) | 2007-01-25 | 2008-11-26 | 태창엔이티 주식회사 | AFPM coreless multi-generator and motor |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0147103B2 (en) | 1989-10-12 |
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