JPS6160661B2 - - Google Patents
Info
- Publication number
- JPS6160661B2 JPS6160661B2 JP10681882A JP10681882A JPS6160661B2 JP S6160661 B2 JPS6160661 B2 JP S6160661B2 JP 10681882 A JP10681882 A JP 10681882A JP 10681882 A JP10681882 A JP 10681882A JP S6160661 B2 JPS6160661 B2 JP S6160661B2
- Authority
- JP
- Japan
- Prior art keywords
- terminal
- terminal member
- motor
- insulating plate
- internal cable
- 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
- 239000011347 resin Substances 0.000 claims description 9
- 229920005989 resin Polymers 0.000 claims description 9
- 229910052731 fluorine Inorganic materials 0.000 claims description 8
- 239000011737 fluorine Substances 0.000 claims description 8
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 claims description 7
- 238000004804 winding Methods 0.000 claims description 5
- 150000001875 compounds Chemical class 0.000 claims description 4
- 239000007788 liquid Substances 0.000 description 14
- 238000009413 insulation Methods 0.000 description 10
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- UNILWMWFPHPYOR-KXEYIPSPSA-M 1-[6-[2-[3-[3-[3-[2-[2-[3-[[2-[2-[[(2r)-1-[[2-[[(2r)-1-[3-[2-[2-[3-[[2-(2-amino-2-oxoethoxy)acetyl]amino]propoxy]ethoxy]ethoxy]propylamino]-3-hydroxy-1-oxopropan-2-yl]amino]-2-oxoethyl]amino]-3-[(2r)-2,3-di(hexadecanoyloxy)propyl]sulfanyl-1-oxopropan-2-yl Chemical compound O=C1C(SCCC(=O)NCCCOCCOCCOCCCNC(=O)COCC(=O)N[C@@H](CSC[C@@H](COC(=O)CCCCCCCCCCCCCCC)OC(=O)CCCCCCCCCCCCCCC)C(=O)NCC(=O)N[C@H](CO)C(=O)NCCCOCCOCCOCCCNC(=O)COCC(N)=O)CC(=O)N1CCNC(=O)CCCCCN\1C2=CC=C(S([O-])(=O)=O)C=C2CC/1=C/C=C/C=C/C1=[N+](CC)C2=CC=C(S([O-])(=O)=O)C=C2C1 UNILWMWFPHPYOR-KXEYIPSPSA-M 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 150000002221 fluorine Chemical class 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- 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
- H02K5/22—Auxiliary parts of casings not covered by groups H02K5/06-H02K5/20, e.g. shaped to form connection boxes or terminal boxes
- H02K5/225—Terminal boxes or connection arrangements
-
- 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
- H02K5/132—Submersible electric motors
Description
【発明の詳細な説明】
本発明はLNG、LPG等の低温液体中に潜没し
て低温液体を圧送する液中電動機の端子装置に関
する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a terminal device for a submerged motor that is submerged in a low-temperature liquid such as LNG or LPG and pumps the low-temperature liquid.
一般に回転電機の端子装置はモータの固定子巻
線から引き出される内部ケーブルと外部ケーブル
とを接続するための装置であるが、低温液体中に
潜没して使用する液中電動機、特にサブマージド
ポンプ等の端子装置としては低温液体中での機械
的強度があつて電気絶縁性が保持されていること
が要求されている。その理由としては低温液体中
に絶縁性の良くない液が混入していることがあ
り、侵透による絶縁不良をまねきやすい条件とな
つており、しかもサブマージドポンプ等はポンプ
部から圧送される低温液体の一部を電動機内へ送
入させ、電動機内を加圧冷却しているために、電
動機内部から端子装置へ低温液体が漏洩しやすく
なつているからである。 In general, a terminal device for rotating electric machines is a device for connecting an internal cable pulled out from the stator winding of a motor with an external cable, but it is also used for submerged electric motors that are submerged in low-temperature liquid, especially submerged pumps. Terminal devices such as these are required to have mechanical strength and maintain electrical insulation in low-temperature liquids. The reason for this is that liquid with poor insulation properties is mixed into the low-temperature liquid, creating a condition that can easily lead to poor insulation due to penetration. This is because a portion of the liquid is fed into the motor and the inside of the motor is cooled under pressure, making it easy for the low-temperature liquid to leak from inside the motor to the terminal device.
しかしながら、従来の端子装置の構造は機械的
強度を高めれば絶縁性の面で問題が生じるといつ
た一長一短の欠点があり、上記のように両方を満
足させるようなものが強く要望されていた。 However, the structure of the conventional terminal device has both advantages and disadvantages, such as increasing the mechanical strength but causing problems in terms of insulation, and there has been a strong demand for something that satisfies both of the above.
本発明は上記事情に鑑み成されたもので、電動
機内圧に十分な強度を有し、しかも絶縁低下が生
じない液中電動機の端子装置を提供することを目
的とする。 The present invention has been made in view of the above circumstances, and it is an object of the present invention to provide a terminal device for a submerged motor that has sufficient strength to withstand the internal pressure of the motor and does not cause insulation deterioration.
以下本発明の一実施例を第１図および第２図を
参照して説明する。１は電動機のフレームであつ
てフレーム１には電動機の内外を貫通する貫通孔
２が設けられている。３は図示していない電動機
の固定子巻線に水密に接続し、ふつ素樹脂被膜で
覆つた内部ケーブル、４は端子部材であつて第３
図のようにつば部４ａの一方に圧縮端子と同じ形
状にした電線接続部４ｂおよび他方は板端子状の
端子部４ｃとおねじ部４ｄとが形成してある。５
は端子部材４の電線接続部４ｂに内部ケーブル３
を圧縮接続した後に端子部４ｃとおねじ部４ｄを
除いた端子部材４と内部ケーブル３とをふつ素樹
脂被覆するふつ素樹脂膜である。このふつ素樹脂
膜５は端子部材４と内部ケーブル３とを接続した
ものを若干の隙間を形成して覆う型をつくり、そ
の型の中に端子部材４と内部ケーブル３とを入れ
た後350゜程度に熱したふつ素樹脂溶液を流し込
むことにより形成する。このようにすることによ
り内部ケーブル３を被覆しているふつ素樹脂被覆
と溶着して一体のふつ素樹脂膜が形成される。６
はフレーム１に設けた貫通孔２を水密に覆う絶縁
板であつてほぼ中心部に端子部材４の端子部４ｃ
とおねじ部４ｄとが貫通する貫通孔６ａを設けて
いる。７は絶縁板６の貫通孔６ａを貫通した端子
部材４のおねじ部４ｄに螺合し、つば部４ａの側
壁と絶縁板６の側壁とを圧接するナツトである。
尚、つば部４ａと絶縁板６との間にふつ素樹脂性
のパツキンを入れてもよい。８は端子部４ｃにボ
ルト９で締付けしたＬ型金具であつてＬ型金具８
の他端には外部ケーブル９に固着する端子１０が
ボルト１１によつてねじ止めされている。１２は
絶縁板６の左側の接続部を覆う蓋付の端子箱で、
この端子箱１２内にはコンパウンド１３が充填さ
れ接続部のシールをしている。尚、被膜材として
ふつ素樹脂を使用するのは耐薬品、耐低温、耐絶
縁性に強い特性を有するためである。 An embodiment of the present invention will be described below with reference to FIGS. 1 and 2. Reference numeral 1 denotes a frame of the electric motor, and the frame 1 is provided with a through hole 2 that penetrates the inside and outside of the electric motor. 3 is an internal cable watertightly connected to the stator winding of an electric motor (not shown) and covered with a fluorine resin coating; 4 is a terminal member;
As shown in the figure, a wire connecting portion 4b having the same shape as a compression terminal is formed on one side of the collar portion 4a, and a terminal portion 4c in the form of a plate terminal and a male screw portion 4d are formed on the other side. 5
The internal cable 3 is connected to the wire connection part 4b of the terminal member 4.
This is a fluorine resin film that coats the terminal member 4 and the internal cable 3, excluding the terminal portion 4c and the male thread portion 4d, after being compressed and connected. This fluorine resin film 5 is used to form a mold that covers the connection between the terminal member 4 and internal cable 3 with a slight gap, and after placing the terminal member 4 and internal cable 3 in the mold, 350 It is formed by pouring a fluororesin solution heated to about 100°F. By doing so, an integrated fluororesin film is formed by welding to the fluororesin coating covering the internal cable 3. 6
is an insulating plate that watertightly covers the through hole 2 provided in the frame 1, and the terminal portion 4c of the terminal member 4 is located approximately in the center of the insulating plate.
A through hole 6a is provided through which the male threaded portion 4d passes. Numeral 7 is a nut that is screwed into the male threaded portion 4d of the terminal member 4 passing through the through hole 6a of the insulating plate 6, and presses the side wall of the collar portion 4a and the side wall of the insulating plate 6.
Note that a fluororesin gasket may be inserted between the flange portion 4a and the insulating plate 6. Reference numeral 8 denotes an L-shaped fitting 8 which is fastened to the terminal portion 4c with a bolt 9.
A terminal 10 fixed to the external cable 9 is screwed to the other end with a bolt 11. 12 is a terminal box with a lid that covers the connection part on the left side of the insulating plate 6;
This terminal box 12 is filled with a compound 13 to seal the connection portion. The reason why fluororesin is used as the coating material is that it has strong chemical resistance, low temperature resistance, and insulation resistance.
次に作用を説明する。このように構成された端
子装置は端子部材４と内部ケーブル３とが、ふつ
素樹脂膜５で一体に被覆され、しかも端子部材４
のつば部４ａと絶縁板６とがおねじ部４ｄとナツ
ト７との螺合作用によつて密接に保持されている
ために、電動機内の低温液体が加圧されても液が
絶縁板６と端子部材４間を通過して端子部４ｃ
と、外部ケーブル１０との接続部に漏洩せず、低
温液体中に絶縁不良液が混入していても絶縁不良
は生じない。またふつ素樹脂は耐薬品性で低温に
強く絶縁不良を起さない。更に、絶縁板６の左側
は端子箱１２で覆い、しかも端子箱１２内にコン
パウンド１３を充填して接続部を固めているので
機械的強度も高く、低温液体の侵入による絶縁不
良は生じない。 Next, the effect will be explained. In the terminal device configured in this way, the terminal member 4 and the internal cable 3 are integrally covered with the fluorine resin film 5, and the terminal member 4
Because the collar 4a and the insulating plate 6 are closely held by the screwing action of the male threaded part 4d and the nut 7, even if the low-temperature liquid in the motor is pressurized, the liquid will not flow into the insulating plate 6. and the terminal member 4, and the terminal portion 4c.
Therefore, there is no leakage to the connection part with the external cable 10, and no insulation failure occurs even if the insulation failure liquid is mixed in the low temperature liquid. In addition, fluorine resin is chemical resistant and resistant to low temperatures without causing insulation defects. Further, the left side of the insulating plate 6 is covered with a terminal box 12, and the terminal box 12 is filled with compound 13 to harden the connection, so the mechanical strength is high, and insulation failure due to intrusion of low temperature liquid does not occur.
以上のように本発明によれば、液中電動機の端
子装置として電動機の固定子巻線に接続するふつ
素樹脂被覆する内部ケーブルを端子部材に圧縮接
続して端子部材のつば部と一体にふつ素樹脂を被
覆して絶縁板に締付け、端子部材の端子部に外部
ケーブルを接続した後に端子箱内にコンパウンド
を充填するようにしたので、電動機内圧に十分な
強度を有し端子箱内に液が漏洩しないので絶縁不
良を生じることはないすぐれた効果がある。 As described above, according to the present invention, as a terminal device for a submerged electric motor, an internal cable coated with a fluorine resin, which is connected to a stator winding of an electric motor, is compressively connected to a terminal member, and is integrally connected to the collar of the terminal member. The compound is coated with base resin and tightened to the insulating plate, and the terminal box is filled with the compound after connecting the external cable to the terminal part of the terminal member, so it has sufficient strength to withstand the internal pressure of the motor and does not contain liquid inside the terminal box. It has an excellent effect of not causing insulation defects because it does not leak.
第１図は本発明の液中電動機の端子装置の一実
施例を示す縦断面図、第２図は第１図のＡ−Ａ線
に沿う縦断面図、第３図は第１図の端子部材を示
す正面図である。
１……フレーム、２……貫通孔、３……内部ケ
ーブル、４……端子部材、４ａ……つば部、４ｂ
……電線接続部、４ｃ……端子部、４ｄ……おね
じ部、５……ふつ素樹脂膜、６……絶縁板、７…
…ナツト、８……Ｌ型金具、９……外部ケーブ
ル、１０……端子、１２……端子箱、１３……コ
ンパウンド。
FIG. 1 is a longitudinal cross-sectional view showing an embodiment of a terminal device for a submerged motor of the present invention, FIG. 2 is a vertical cross-sectional view taken along line A-A in FIG. 1, and FIG. 3 is a terminal of the terminal shown in FIG. 1. It is a front view showing a member. DESCRIPTION OF SYMBOLS 1...Frame, 2...Through hole, 3...Internal cable, 4...Terminal member, 4a...Brim portion, 4b
...Wire connection part, 4c...Terminal part, 4d...Male thread part, 5...Fluorine resin film, 6...Insulating plate, 7...
... Nut, 8 ... L-shaped fitting, 9 ... External cable, 10 ... Terminal, 12 ... Terminal box, 13 ... Compound.
Claims (1)
の一方に電線接続部を他方に端子部とおねじ部と
を形成してなる端子部材と、一端が電動機の固定
子巻線と水密に接続され他端が前記端子部材の電
線接続部と接続されるふつ素樹脂被覆された内部
ケーブルと、前記端子部材の端子部とおねじ部と
を除いて残り端子部材と前記電線接続部に接続さ
れた内部ケーブルとを一体に被覆したふつ素樹脂
膜と、前記固定子巻線を内蔵している電動機のフ
レームに形成された貫通孔を水密に覆い前記端子
部材の端子部とおねじ部とが貫通する貫通孔を設
けた絶縁板と、前記端子部材のつば部が前記電動
機の内方となるように前記絶縁板の貫通孔を貫通
した端子部材のおねじ部に螺合して前記絶縁板に
前記つば部を圧接し端子部材を固定するナツト
と、前記端子部材の端子部と外部ケーブルとの接
続部を囲む端子箱と、前記端子箱内に充填し前記
端子部と外部ケーブルとの接続部をシールしたコ
ンパウンドとからなる液中電動機の端子装置。1. A terminal member having a collar portion protruding in the circumferential direction and having a wire connection portion on one side in the axial direction and a terminal portion and a male thread portion on the other side, and one end of which is watertight with the stator winding of an electric motor. an internal cable coated with a fluorine resin, the other end of which is connected to the wire connection portion of the terminal member; and an internal cable that is connected to the wire connection portion of the terminal member except for the terminal portion and the male thread portion of the terminal member; A fluororesin film that integrally covers the internal cable and the through hole formed in the frame of the motor in which the stator winding is built-in is watertightly covered, and the terminal portion and the male thread portion of the terminal member pass through. an insulating plate provided with a through hole, and a male threaded portion of a terminal member that passes through the through hole of the insulating plate so that the collar portion of the terminal member is inside the motor; a nut for press-fitting the flange portion and fixing the terminal member; a terminal box surrounding the connecting portion between the terminal portion of the terminal member and the external cable; and a connecting portion filled in the terminal box and connecting the terminal portion and the external cable. A terminal device for submerged motors consisting of a sealed compound.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10681882A JPS58224536A (en) | 1982-06-23 | 1982-06-23 | Terminal for motor used in liquid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10681882A JPS58224536A (en) | 1982-06-23 | 1982-06-23 | Terminal for motor used in liquid |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58224536A JPS58224536A (en) | 1983-12-26 |
| JPS6160661B2 true JPS6160661B2 (en) | 1986-12-22 |
Family
ID=14443388
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10681882A Granted JPS58224536A (en) | 1982-06-23 | 1982-06-23 | Terminal for motor used in liquid |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58224536A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63294715A (en) * | 1987-05-26 | 1988-12-01 | Matsushita Electric Ind Co Ltd | Agricultural house |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5949167A (en) * | 1998-07-22 | 1999-09-07 | Reliance Electric Industrial Company | Lead wire routing and sealing assembly for large electric motor |
| JP4608775B2 (en) * | 2000-12-20 | 2011-01-12 | 日産自動車株式会社 | Rotating electric machine |
| US6897584B2 (en) * | 2002-04-25 | 2005-05-24 | Honeywell International Inc. | High power terminal block assembly for generators and method of assembling and installing the same |
| JP2006129661A (en) * | 2004-11-01 | 2006-05-18 | Nishishiba Electric Co Ltd | Submerged motor |
| JP4780380B2 (en) * | 2005-10-13 | 2011-09-28 | 西芝電機株式会社 | Submerged motor |
-
1982
- 1982-06-23 JP JP10681882A patent/JPS58224536A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63294715A (en) * | 1987-05-26 | 1988-12-01 | Matsushita Electric Ind Co Ltd | Agricultural house |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS58224536A (en) | 1983-12-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP2008269858A (en) | Connector | |
| US3135884A (en) | Submersible electric motor | |
| US3388211A (en) | Sealing bushing and wall member for electrical apparatus and method of assembling same | |
| JPS6160661B2 (en) | ||
| US2311805A (en) | Closure for submersible pumping units | |
| US2396871A (en) | High voltage cable connection | |
| US2987570A (en) | Fluid-tight connector structure for submersible apparatus | |
| US2233890A (en) | Eccentric suspension and cable connection for submersible motor pumps | |
| US3084210A (en) | Connection for submersible motors | |
| JPS59185134A (en) | Lead connector of high pressure liquid sealing equipment | |
| DK202170446A1 (en) | Electrical feedthrough | |
| CN115136259B (en) | Bushing and electrical assembly | |
| CN113826311B (en) | Transmission unit and installation of a transmission unit with a junction box | |
| JP4780380B2 (en) | Submerged motor | |
| US3141061A (en) | High voltage cable terminal | |
| JPH0122359Y2 (en) | ||
| RU2780807C1 (en) | Electrical input for a pressurised body | |
| US2890268A (en) | Cable joint seal | |
| JPS626838Y2 (en) | ||
| JPH043574Y2 (en) | ||
| JPS5935958Y2 (en) | Electrical wiring extraction device from low-temperature and high-pressure containers | |
| JPS5818420Y2 (en) | Structure penetration hermetic device for cryogenic cables | |
| JPH0416594Y2 (en) | ||
| JPH0130364B2 (en) | ||
| JPS6271451A (en) | Connector for lead section of high-pressure liquid sealed apparatus |