JPS5843156A - Underwater pump - Google Patents

Underwater pump

Info

Publication number
JPS5843156A
JPS5843156A JP13854881A JP13854881A JPS5843156A JP S5843156 A JPS5843156 A JP S5843156A JP 13854881 A JP13854881 A JP 13854881A JP 13854881 A JP13854881 A JP 13854881A JP S5843156 A JPS5843156 A JP S5843156A
Authority
JP
Japan
Prior art keywords
cable
hole
resin
bracket
filling
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
Application number
JP13854881A
Other languages
Japanese (ja)
Other versions
JPH0116096B2 (en
Inventor
Tadashi Kizaki
木崎 正
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shibaura Mechatronics Corp
Original Assignee
Shibaura Engineering Works Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Shibaura Engineering Works Co Ltd filed Critical Shibaura Engineering Works Co Ltd
Priority to JP13854881A priority Critical patent/JPS5843156A/en
Publication of JPS5843156A publication Critical patent/JPS5843156A/en
Publication of JPH0116096B2 publication Critical patent/JPH0116096B2/ja
Granted legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K15/00Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
    • H02K15/12Impregnating, heating or drying of windings, stators, rotors or machines

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Power Engineering (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Motor Or Generator Frames (AREA)

Abstract

PURPOSE:To improve the performance of an underwater pump by forming a molding resin filling hole oppositely to a cable drawing side and filling the resin with the cable drawing side at the downside, thereby preventing the leakage of a current due to immersed water. CONSTITUTION:A stator 2 which is wound with a coil 1 is contained in a cylindrical frame 3, a stainless steel cylinder 4 is contained at the inner peripheral side, and brackets 6, 7 are enclosed at both ends. A drawing hole 9 of a cable 8 is formed at one bracket 6, is fixed with a flange 11 through a packing 10 outside the hole 9, thereby maintaining watertight. A hole 12 of filling molding resin 12 and an exhaust gas hole 14 are formed at the other bracket 7. The resin 12 is filled with the cable drawing side downside, and can be filled densely without producing air bubbles in the surface of the cable 8.

Description

【発明の詳細な説明】 本発明線、水密にモールド樹脂を注入できる構造の水中
ポンプに関する。
DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a submersible pump having a structure capable of injecting mold resin in a watertight manner.

水中ポンプは、モータの固定子を絶縁するために固定子
をステンレス鋼板等で被って内側へモールド樹脂を注入
し浸水を防止するのが一般的な構成である。
A typical configuration of a submersible pump is to insulate the stator of the motor by covering the stator with a stainless steel plate or the like and injecting molding resin into the stator to prevent water from seeping in.

そして、固定子巻線への給電は、内部から耐水ケーブル
を引出し水密に保持するよう構成している。
In order to supply power to the stator windings, a water-resistant cable is drawn out from inside and maintained in a watertight manner.

そこでこの耐水ケーブルの引出部分を分析すると、筒体
の閉鎖部分を耐水ケーブルが貫通することおよび貫通部
分を、水密に保持するための7ランジ等禎雑な構造を形
成すると共に内側から見ると凹凸が多くなるのが一般的
である。
Therefore, when we analyze the pull-out part of this water-resistant cable, we find that the water-resistant cable passes through the closed part of the cylindrical body, and that the penetrating part forms a rough structure with 7 lunges to keep it watertight, and when viewed from the inside, it is uneven. It is common for there to be more.

従って、ヒのような凹凸部分を上にしてモールド樹脂を
充填すると、例え内部を真空にして充填してもわずかな
空気泡や未充填部を生じることがある。 □ このような耐水ケーブルに沿ってモールド樹脂の未充填
部が生・しると長期間の使用に際して、運転停止に伴う
呼吸作用や耐水ケーブルや水密構成部分の経年変化で浸
水することがある。
Therefore, if the mold resin is filled with the uneven part facing up, even if the inside is vacuumed and filled, slight air bubbles or unfilled parts may occur. □ If unfilled parts of the molded resin grow or grow along such water-resistant cables, water may flood during long-term use due to breathing effects due to stoppage of operation or aging of the water-resistant cables and watertight components.

そして、耐水ケーブルの引出部分で浸水するとこの耐水
ケーブルに沿って固定子巻線との接続部等に漏水して漏
電する恐れが生じる。
If water enters the lead-out portion of the water-resistant cable, there is a risk that water will leak along the water-resistant cable to the joints with the stator windings, causing electrical leakage.

本発明は、このような事情から浸水による漏電を生じる
恐れのない水中ポンプを提供することを目的としている
Under these circumstances, the present invention aims to provide a submersible pump that is free from the risk of electrical leakage due to flooding.

以下、本発明を図面に示された一実施例にもとづいて説
明すると、第1図は本発明による水中ポンプの要部縦断
面図であり、第2図はその正面図である。
Hereinafter, the present invention will be described based on one embodiment shown in the drawings. FIG. 1 is a vertical cross-sectional view of a main part of a submersible pump according to the present invention, and FIG. 2 is a front view thereof.

第1図において、水中ポンプは、巻線1の施された固定
子2が円筒状のフレーム3に納められ、内周側はステン
レス鋼板の円筒番が納められており、両端にブラケット
6、フによる閉鎖部が形成されている。
In Fig. 1, the submersible pump has a stator 2 with a winding 1 housed in a cylindrical frame 3, a cylindrical stainless steel plate on the inner periphery, and brackets 6 and a frame 3 on both ends. A closure is formed by the

そして、一方のブラケット6にケーブル8の引出孔9が
形成され巻線1に接続されたケーブル8が引出されてい
る。
A cable 8 pull-out hole 9 is formed in one bracket 6, and the cable 8 connected to the winding 1 is pulled out.

さらに、ケーブル8は、引出孔9の外側でバッキング1
0を介在して7ランジ11によって固定され水密性が保
持されている。
Furthermore, the cable 8 is connected to the backing 1 outside the extraction hole 9.
It is fixed by 7 langes 11 with 0 interposed therebetween to maintain watertightness.

他方のブラケットマには、モールド樹脂12の注入孔1
3および排気孔14が設けられている。
The other bracket has an injection hole 1 for molding resin 12.
3 and an exhaust hole 14 are provided.

一方および他方のブラケット6、マには、夫々・111
・ 図示されない軸受けを有するブラケットが設けられ固定
子2内部で回転する回転子を支承するよう構成されるも
のである。
One and the other brackets 6 and 111, respectively.
- A bracket having a bearing (not shown) is provided and is configured to support the rotor rotating inside the stator 2.

また、一方のブラケット6側には、これも図示されない
ポンプ部分が設けられ地上のタンク等へ配管されるよう
構成されるものである。
Furthermore, a pump portion (also not shown) is provided on one side of the bracket 6, and is configured to be piped to an above-ground tank or the like.

第2図において、水中ポンプは、ケーブル8の引出孔9
に7ランジ11が2本のポル)15.16によって固定
されており、ケーブル16が引出されている。
In FIG. 2, the submersible pump has a cable outlet 9
The 7 langes 11 are fixed by two poles 15 and 16, and the cables 16 are pulled out.

このような構成において、水中ポンプは、固定子2の巻
線1にケーブル8を接続してフレーム3に納め、内径側
に円筒5を装着し、両端にブラケット6、フを設けて構
成する。
In such a configuration, the submersible pump has a cable 8 connected to the winding 1 of the stator 2 and housed in the frame 3, a cylinder 5 attached to the inner diameter side, and brackets 6 and a flap provided at both ends.

このように構成されたモータ部分は、ケーブル8の引出
された一方のブラケット6を下にして立て、他方のブラ
ケット7に設けられた注入孔13にモールド樹脂12注
入用具を取付け、排気孔147)hら内部の空気を排出
する。
The motor part configured in this way is erected with one bracket 6 from which the cable 8 is drawn out facing down, a tool for injecting molded resin 12 is attached to the injection hole 13 provided in the other bracket 7, and an exhaust hole 147) is installed. Exhaust the air inside.

この内部の空@?排出社、モールド樹脂12を注入する
前工程として内部を真空になるよう排気すればモールド
樹脂12はきわめて細部まで真横されることになる。
This inner sky @? If the interior is evacuated to a vacuum as a pre-process before injection of the mold resin 12, the mold resin 12 will be completely horizontal in very small detail.

しかも、たーてい細長く形成されるこの種モータでは、
ケーブル8の引出し側を下にしてモールド樹脂12を注
入することによりケーブル8の引出部分の凹凸およびケ
ーブル8表面にも気泡等を生じることなく致密に充填さ
れることKなる。
Moreover, in this type of motor, which is usually long and narrow,
By injecting the molding resin 12 with the pull-out side of the cable 8 facing down, the unevenness of the pull-out portion of the cable 8 and the surface of the cable 8 can be tightly filled without forming bubbles or the like.

そして、このような状態でモールド樹脂12を硬化させ
ることにより、硬化によゐ収縮の影響は上部である他方
のブラケット6側に生じやすく、ケーブル8側ではモー
ルド樹脂12が致密な状態で硬化する。
By curing the mold resin 12 in such a state, the effect of shrinkage due to curing tends to occur on the other bracket 6 side, which is the upper part, and the mold resin 12 hardens in a tight state on the cable 8 side. .

さらに、硬化等によるモールド樹脂12の収縮は、上部
である他方のブラケット下側に生じやす′φが、この部
分に気泡や収縮の影響を生じてもケーブル8の引出し等
浸水の原因となるものがなく漏電の恐れを生じるもので
はない。
Furthermore, shrinkage of the molded resin 12 due to hardening etc. tends to occur on the lower side of the other bracket, which is the upper part. Even if air bubbles or shrinkage occur in this part, it may cause water ingress, such as when pulling out the cable 8. There is no risk of electrical leakage.

モータ内部に注入されたモールド樹脂12が硬化した後
は、ケーブル8が上になるよう一方のブラケット6を上
にしてポンプ部分等を取付ければ水中ポンプが完成する
After the molding resin 12 injected into the motor hardens, the submersible pump is completed by attaching the pump part and the like with one bracket 6 facing upward so that the cable 8 is facing upward.

モールド樹脂12の注入孔13および排気孔1番は、盲
栓を施してもよいが、硬化したモールド樹脂12によっ
て水が浸入しないようであれば開口した状態でもよい。
The injection hole 13 and the exhaust hole No. 1 of the mold resin 12 may be plugged with blind plugs, but may be left open as long as the hardened mold resin 12 prevents water from entering.

このように、ケーブル8の引出し側を上にしてモールド
樹脂12を注入することによりケーブル8の引出し部分
に凹凸があっても、また、ケーブル8に弾力性があって
空隙が生じやすいものでも下側にな為ことから自重・が
加わる等モールド樹脂12が致密になり漏水に対してき
わめて都合のよい硬化が得られる。
In this way, by injecting the molding resin 12 with the pull-out side of the cable 8 facing upward, even if the pull-out part of the cable 8 is uneven, or if the cable 8 is elastic and tends to have gaps, it can be The mold resin 12 becomes tight due to its own weight being applied to the side, resulting in a hardening that is extremely convenient against water leakage.

以上説明の通b1本発明によればケーブルの引出し側と
は反対側にモールド樹脂の注入孔を形成づると共にケー
ブルの引出し側を下にしてモールド樹脂を注入するため
、ケーブルの引出し部分等に致密にモールド樹、脂が充
填され、漏電の恐れがなくなる他比較的粘度の高いモー
ルド剤を用いることができその効果は、水中ポンプの性
能上きわめて大である、
As explained above, B1: According to the present invention, the mold resin injection hole is formed on the side opposite to the cable pull-out side, and the mold resin is injected with the cable pull-out side facing down, so that it is tightly attached to the cable pull-out part, etc. It is filled with molding resin and fat, which eliminates the risk of electrical leakage, and allows the use of relatively high-viscosity molding agents, which has an extremely large effect on the performance of submersible pumps.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図は、本発明の一実施例を示す水中ポンプの要部縦
断面図、第2図はその正面図である。 2・・・固定子、  s・・・フレーム、 4・・・円
筒、 6、フ・・・ブラケット、 8・・・ケーブル、
 13・・・注入孔。 特許出願人 株式会社芝浦製作所 第1邑 13        14
FIG. 1 is a vertical cross-sectional view of a main part of a submersible pump showing one embodiment of the present invention, and FIG. 2 is a front view thereof. 2...Stator, s...Frame, 4...Cylinder, 6, Frame...Bracket, 8...Cable,
13...Injection hole. Patent applicant Shibaura Seisakusho Co., Ltd. 13-14

Claims (1)

【特許請求の範囲】[Claims] 固定子の内外周を筒体で被うと共に両端を閉鎖してモー
タを形成し、一方の閉鎖部から水密にケーブルを引出し
、他方の閉鎖部からモールド樹脂を注入可能に構成し、
一方の閉鎖部を下側にし他方の閉鎖部を上にしてモール
ド樹脂を注入することを特徴とする水中ポンプ。
A motor is formed by covering the inner and outer peripheries of the stator with a cylindrical body and closing both ends, a cable is drawn out watertightly from one closed part, and a molding resin can be injected from the other closed part,
A submersible pump characterized in that mold resin is injected with one closing part facing downward and the other closing part facing upward.
JP13854881A 1981-09-04 1981-09-04 Underwater pump Granted JPS5843156A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13854881A JPS5843156A (en) 1981-09-04 1981-09-04 Underwater pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13854881A JPS5843156A (en) 1981-09-04 1981-09-04 Underwater pump

Publications (2)

Publication Number Publication Date
JPS5843156A true JPS5843156A (en) 1983-03-12
JPH0116096B2 JPH0116096B2 (en) 1989-03-22

Family

ID=15224718

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13854881A Granted JPS5843156A (en) 1981-09-04 1981-09-04 Underwater pump

Country Status (1)

Country Link
JP (1) JPS5843156A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0321582A1 (en) * 1987-06-22 1989-06-28 Fanuc Ltd. Method of molding motor stator
JP2015070634A (en) * 2013-09-26 2015-04-13 ファナック株式会社 Stator with bracket, motor with stator, and method of manufacturing motor

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5033252B1 (en) 2011-04-14 2012-09-26 日機装株式会社 CAND MOTOR PUMP AND METHOD OF FILLING PACKING MATERIAL IN ITS STATOR ROOM

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0321582A1 (en) * 1987-06-22 1989-06-28 Fanuc Ltd. Method of molding motor stator
JP2015070634A (en) * 2013-09-26 2015-04-13 ファナック株式会社 Stator with bracket, motor with stator, and method of manufacturing motor
US9966815B2 (en) 2013-09-26 2018-05-08 Fanuc Corporation Stator including a bracket, electric motor including a stator, and method of producing an electric motor

Also Published As

Publication number Publication date
JPH0116096B2 (en) 1989-03-22

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