JPH0919107A - Open type induction motor - Google Patents
Open type induction motorInfo
- Publication number
- JPH0919107A JPH0919107A JP16507095A JP16507095A JPH0919107A JP H0919107 A JPH0919107 A JP H0919107A JP 16507095 A JP16507095 A JP 16507095A JP 16507095 A JP16507095 A JP 16507095A JP H0919107 A JPH0919107 A JP H0919107A
- Authority
- JP
- Japan
- Prior art keywords
- stator
- outer diameter
- bracket
- high thermal
- induction motor
- 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.)
- Pending
Links
Landscapes
- Motor Or Generator Cooling System (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は簡易な構成で小型化およ
び軽量化を具備したベースタイプの開放型誘導電動機に
関し、特に電動機のステータの外周が外部に露出してい
る開放型誘導電動機の構造に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a base type open type induction motor having a simple structure and a reduced size and weight. In particular, the structure of the open type induction motor is such that the outer periphery of the stator of the motor is exposed to the outside. It is about.
【０００２】[0002]
【従来の技術】標準の開放型誘導電動機の小型化・軽量
化の市場要求により、ベースタイプの開放型誘導電動機
の小型・軽量をめざした簡易構造が重要になってきてい
る傾向にある。2. Description of the Related Art Due to the market demand for downsizing and weight reduction of standard open-type induction motors, there is a tendency that a simple structure aiming at downsizing and weight reduction of a base-type open-type induction motor is becoming important.
【０００３】以下に従来の開放型誘導電動機について説
明する。図２は従来の開放型誘導電動機（以下電動機と
称する）の断面図を示すものである。図２において、１
は電動機の軸、７は軸１の反負荷側に圧入された反負荷
側玉軸受、８は軸１の負荷側に圧入された負荷側玉軸
受、２は反負荷側玉軸受７を保持し端面に風穴を設けた
ブラケットＢ、３は負荷側玉軸受８を保持し端面に風穴
を設けたブラケットＡ、４はブラケットＡ３とブラケッ
トＢ２をステータ外周に固定する通しボルト、５は軸１
に固定されたロータ、６はロータ５に対向する位置に設
けられたステータ、１０は電流が流れることによりステ
ータ６とロータ５の間のギャップに磁界を発生させるコ
イル、１１はロータ５のアルミダイカストに形成される
鋳出しファン、１２はブラケットＡ３，ブラケットＢ２
の外周に設けられた風穴、１３はベースである。前記ベ
ース１３はブラケットＡ３に溶接によって締結され、電
動機本体を支持している。電動機はギャップに励磁され
た磁界によってロータ５に誘起される電流により電磁力
が発生し、軸１に回転力を与え動力を負荷に伝達する装
置である。A conventional open type induction motor will be described below. FIG. 2 is a sectional view of a conventional open type induction motor (hereinafter referred to as an electric motor). In FIG. 2, 1
Is a shaft of the motor, 7 is an anti-load side ball bearing that is press-fitted on the anti-load side of the shaft 1, 8 is a load side ball bearing that is press-fitted on the load side of the shaft 1, and 2 is an anti-load side ball bearing 7. Brackets B having air holes on the end faces, brackets A having load side ball bearings 8 and brackets A having air holes on the end faces, 4 are through bolts for fixing brackets A3 and B2 to the outer circumference of the stator, and 5 is a shaft 1
Rotor 6 fixed to the rotor, 6 a stator provided at a position facing the rotor 5, 10 a coil for generating a magnetic field in the gap between the stator 6 and the rotor 5 when an electric current flows, 11 an aluminum die casting of the rotor 5. A casting fan formed on the base 12, brackets A3 and brackets B2
An air hole 13 is provided on the outer circumference of the base. The base 13 is fastened to the bracket A3 by welding and supports the electric motor body. The electric motor is a device that generates an electromagnetic force by a current induced in the rotor 5 by a magnetic field excited in the gap, applies a rotational force to the shaft 1 and transmits the power to a load.
【０００４】[0004]
【発明が解決しようとする課題】しかしながら上記従来
の構成では、電動機の鉄心外径を一段下げ小形軽量化し
ようとすると電動機の構造上鉄心外径が外部に露出し、
しかもステータのコイルエンドを冷却する風により冷却
されるブラケットが鉄心外径の一部のみにしか圧入して
いないため鉄心の損失による熱を熱伝導率のない大気に
のみに逃がす手段しかなく、鉄心外径を圧入によってフ
レームに覆われている防滴形構造の電動機に比較して巻
線の温度上昇が高くなるというという問題点を有してい
た。本発明は上記従来の問題点を解決するもので、ステ
ータコア外径すなわち鉄心外径およびステータコア外径
とブラケットとのインロ部に熱伝導率の高い材料を塗布
することににより鉄心の損失による熱がブラケットの方
に移動し、風によって大気中に逃がされ巻線の温度上昇
が低く押さえられ小形で軽量なベースタイプ開放型誘導
電動機を提供するもである。However, in the above-mentioned conventional structure, when the outer diameter of the iron core of the electric motor is lowered by one step to reduce the size and weight, the outer diameter of the iron core is exposed to the outside due to the structure of the electric motor.
Moreover, since the bracket that is cooled by the wind that cools the coil end of the stator is pressed into only a part of the outer diameter of the iron core, there is no other way but to let the heat from the loss of the iron core escape to the atmosphere without thermal conductivity. There is a problem that the temperature rise of the winding is higher than that of the drip-proof type electric motor in which the outer diameter is covered by press fitting. The present invention solves the above-mentioned conventional problems, and the heat due to the loss of the iron core is generated by applying a material having a high thermal conductivity to the stator core outer diameter, that is, the iron core outer diameter and the stator core outer diameter and the spigot portion of the bracket. It is a small and lightweight base type open induction motor that moves to the bracket and is released into the atmosphere by the wind to keep the temperature rise of the winding low.
【０００５】[0005]
【課題を解決するための手段】この目的を達成するため
に本発明の電動機は、ステータコア外径すなわち鉄心外
径およびステータコア外径とブラケットとのインロ部に
熱伝導率の高い材料を塗布している。In order to achieve this object, the electric motor of the present invention applies a material having high thermal conductivity to the stator core outer diameter, that is, the iron core outer diameter and the stator core outer diameter and the spigot portion between the bracket and the bracket. There is.
【０００６】[0006]
【作用】この構成によって、電動機の鉄心外径を一段下
げ小形軽量可能な電動機の簡易構造を提供することによ
り、標準の開放型誘導電動機の小型化・軽量化の市場要
求に対応でき市場の活性化に大きく貢献するものであ
る。[Operation] By providing a simple structure of the electric motor which can reduce the outer diameter of the iron core of the electric motor by one step and can be made compact and lightweight by this configuration, it is possible to meet the market demand for downsizing and weight saving of the standard open type induction motor and activate the market. It will greatly contribute to the commercialization.
【０００７】[0007]
【実施例】以下本発明の一実施例について、図面を参照
しながら説明する。An embodiment of the present invention will be described below with reference to the drawings.
【０００８】図１において１ａは電動機の軸、７ａは軸
１ａの反負荷側に圧入された反負荷側玉軸受、８ａは軸
１ａの負荷側に圧入された負荷側玉軸受、２ａは反負荷
側玉軸受７ａを保持し端面に風穴を設けたブラケット
Ｂ、３ａは負荷側玉軸受８ａを保持し端面に風穴を設け
たブラケットＡ、４ａはブラケットＡ３ａとブラケット
Ｂ２ａをステータ外周に固定する通しボルト、５ａは軸
１ａに固定されたロータ、６ａはロータ５ａに対向する
位置に設けられたステータ、９ａはステータ６ａの外径
およびステータ６ａの外径とブラケットＡ３ａ，ブラケ
ットＢ２ａとのイン部に塗布された熱伝導率の高い材
料、１０ａは電流が流れることによりステータ６ａとロ
ータ５ａの間のギャップに磁界を発生させるコイル、１
１ａはロータ５ａのアルミダイカストに形成される鋳出
しファン、１２ａはブラケットＡ３ａ，ブラケットＢ２
ａの外周に設けられた風穴、１３ａはベースである。前
記ベース１３ａはブラケットＡ３ａに溶接によって締結
され、電動機本体を支持している。In FIG. 1, 1a is the shaft of the electric motor, 7a is the anti-load side ball bearing press-fitted to the anti-load side of the shaft 1a, 8a is the load side ball bearing press-fitted to the load side of the shaft 1a, and 2a is the anti-load. Brackets B and 3a, which hold side ball bearings 7a and have air holes on their end faces, are brackets A and 3a, which hold load side ball bearings 8a and have air holes on their end faces, are through bolts that fix brackets A3a and B2a to the outer circumference of the stator. 5a is a rotor fixed to the shaft 1a, 6a is a stator provided at a position facing the rotor 5a, 9a is an outer diameter of the stator 6a and an inner portion of the outer diameter of the stator 6a and the bracket A3a, the bracket B2a. The material 10a having a high thermal conductivity is a coil for generating a magnetic field in the gap between the stator 6a and the rotor 5a by the flow of an electric current.
1a is a casting fan formed on the aluminum die casting of the rotor 5a, and 12a is a bracket A3a and a bracket B2.
An air hole 13a is provided on the outer periphery of a. The base 13a is fastened to the bracket A3a by welding and supports the electric motor body.
【０００９】以上のように構成された電動機について、
電動機の運転によって発生する鉄損および銅損の一部が
ステータ６ａに蓄積された熱がブラケットＡ３ａ，ブラ
ケットＢ２ａとの温度勾配によって、ステータ６ａの外
径およびステータ６ａの外径とブラケットＡ３ａ，ブラ
ケットＢ２ａとのインロ部に塗布した熱伝導率の高い材
料を通って１４ａのように熱が移動し巻線温度上昇の低
い電動機の簡易構造を提供でき、電動機の小形軽量化に
大きく貢献する。Regarding the electric motor configured as described above,
Due to the temperature gradient between the bracket A3a and the bracket B2a, the heat in which a part of the iron loss and the copper loss generated by the operation of the electric motor is accumulated in the stator 6a is caused by the outer diameter of the stator 6a and the outer diameter of the stator 6a and the bracket A3a, the bracket A3a. It is possible to provide a simple structure of an electric motor in which heat is transferred through a material having a high thermal conductivity applied to the spigot portion with B2a and a winding temperature rise is low as in the case of 14a, which greatly contributes to downsizing and weight reduction of the electric motor.
【００１０】[0010]
【発明の効果】以上のように本発明は、電動機の簡易構
造を提供でき電動機の小形軽量化に大きく貢献するもの
である。INDUSTRIAL APPLICABILITY As described above, the present invention can provide a simple structure of an electric motor and greatly contributes to reduction in size and weight of the electric motor.
【図１】本発明の一実施例における電動機の断面図FIG. 1 is a sectional view of an electric motor according to an embodiment of the present invention.
【図２】従来の電動機の断面図FIG. 2 is a cross-sectional view of a conventional electric motor
【符号の説明】 １，１ａ 軸 ２，２ａ ブラケットＢ ３，３ａ ブラケットＡ ４，４ａ 通しボルト ５，５ａ ロータ ６，６ａ ステータ ７，７ａ 反負荷側玉軸受 ８，８ａ 負荷側玉軸受 ９ａ 高熱伝導材料 １０，１０ａ コイル １１，１１ａ 鋳出しファン １２，１２ａ 風穴 １３，１３ａ ベース[Explanation of reference numerals] 1,1a shaft 2,2a bracket B 3,3a bracket A 4,4a through bolt 5,5a rotor 6,6a stator 7,7a anti-load side ball bearing 8,8a load side ball bearing 9a high thermal conductivity Material 10,10a Coil 11,11a Casting fan 12,12a Air hole 13,13a Base
Claims (3)
たステータと、アルミダイカストによりバーとエンドリ
ングを形成し、前記エンドリング上に鋳出しファンを設
けたロータと、前記ステータの外径と前記ロータを構成
する玉軸受の外径を基準として負荷側と反負荷側の両側
から保持する２つのブラケットを有し、前記外部に露出
したステータコアの外径部および前記ステータ外径のブ
ラケットとのインロ部に高熱伝導材料を備えたことを特
徴とする開放型誘導電動機。1. A stator having a stator core whose outer periphery is exposed to the outside, a rotor having a bar and an end ring formed by aluminum die casting, and a casting fan provided on the end ring, and an outer diameter of the stator and the rotor. It has two brackets that hold it from both the load side and the anti-load side based on the outer diameter of the ball bearings that form the rotor, and the outer diameter portion of the stator core exposed to the outside and the bracket of the outer diameter of the stator An open-type induction motor, characterized in that its part is provided with a high thermal conductive material.
部の高熱伝導材料に高熱伝導ガスケットを塗布すること
を特徴とする請求項１記載の開放型誘導電動機。2. The open type induction motor according to claim 1, wherein a high thermal conductive gasket is applied to a high thermal conductive material of a spigot portion of the stator core outer diameter with the bracket.
前記ステータ外径のブラケットとのインロ部の高熱伝導
材料に高熱伝導塗料を塗装することを特徴とする請求項
１記載の開放型誘導電動機。3. The open induction motor according to claim 1, wherein a high thermal conductive paint is applied to the high thermal conductive material of the stator core outer diameter portion exposed to the outside and the spigot portion of the stator outer diameter bracket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16507095A JPH0919107A (en) | 1995-06-30 | 1995-06-30 | Open type induction motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16507095A JPH0919107A (en) | 1995-06-30 | 1995-06-30 | Open type induction motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0919107A true JPH0919107A (en) | 1997-01-17 |
Family
ID=15805304
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16507095A Pending JPH0919107A (en) | 1995-06-30 | 1995-06-30 | Open type induction motor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0919107A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013126274A (en) * | 2011-12-13 | 2013-06-24 | Sumitomo Heavy Ind Ltd | Gear motor |
-
1995
- 1995-06-30 JP JP16507095A patent/JPH0919107A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013126274A (en) * | 2011-12-13 | 2013-06-24 | Sumitomo Heavy Ind Ltd | Gear motor |
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