JP2004229418A - Water-cooling structure of motor - Google Patents

Water-cooling structure of motor Download PDF

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Publication number
JP2004229418A
JP2004229418A JP2003014828A JP2003014828A JP2004229418A JP 2004229418 A JP2004229418 A JP 2004229418A JP 2003014828 A JP2003014828 A JP 2003014828A JP 2003014828 A JP2003014828 A JP 2003014828A JP 2004229418 A JP2004229418 A JP 2004229418A
Authority
JP
Japan
Prior art keywords
water
cylindrical case
motor
cooling structure
ring
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
Application number
JP2003014828A
Other languages
Japanese (ja)
Inventor
Wataru Sato
渉 佐藤
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.)
Tamagawa Seiki Co Ltd
Original Assignee
Tamagawa Seiki 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 Tamagawa Seiki Co Ltd filed Critical Tamagawa Seiki Co Ltd
Priority to JP2003014828A priority Critical patent/JP2004229418A/en
Publication of JP2004229418A publication Critical patent/JP2004229418A/en
Pending legal-status Critical Current

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Abstract

<P>PROBLEM TO BE SOLVED: To realize remarkable reduction of cost by using not a pipe but a waterway part using a trench. <P>SOLUTION: In this water-cooled structure of a motor, the waterway part (3) which is constituted of the trench formed in periphery (1b) of a cylindrical case (1) having a ring stator (2) is coated with a ring outer cylinder (4), and water is circulated from a portal (5) toward an egress (6). <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

【0001】
【発明の属する技術分野】
本発明は、モータの水冷構造に関し、特に、輪状ステータの外側の筒状ケースの周面に形成した溝を利用して水路部とし、パイプを用いない構造とするための新規な改良に関する。
【0002】
【従来の技術】
従来、用いられていたこの種のモータの水冷構造としては、モータの外周にパイプで形成した水冷用のジャケットを巻付ける構成が採用されていた(例えば、特許文献1参照)。
すなわち、図示していないが、螺旋状に形成したパイプ内に水を循環させ、モータ自体の温度上昇を抑えるようにしていた。
【0003】
【特許文献1】
特開平11−287579号公報
【0004】
【発明が解決しようとする課題】
従来のモータの水冷構造は、以上のように構成されていたため、次のような課題が存在していた。
すなわち、モータの筒状ケースの周面に、この筒状ケースとは別体で形成された螺旋状のパイプを取付けていたため、この螺旋状のパイプの製作が容易でなく、多大の労力とコストを必要とし、コストダウン及び信頼性向上の大きい障害となっていた。
【0005】
本発明は、以上のような課題を解決するためになされたもので、特に、輪状ステータの外側の筒状ケースの周面に形成した溝を利用して水路部とし、パイプを用いない構造としたモータの水冷構造を提供することを目的とする。
【0006】
【課題を解決するための手段】
本発明によるモータの水冷構造は、輪状ステータを内面に有する筒状ケースと、前記筒状ケースの両端に設けられ軸受を有する前蓋及び後蓋と、前記軸受に回転自在に設けられ前記輪状ステータの内側に設けられたロータと、前記筒状ケースの周面に形成され輪状外筒によって覆われた溝からなる水路部と、前記水路部に接続された水の入口及び出口とよりなり、前記水路部に水を循環させることにより水冷を行うようにした構成である。
【0007】
【発明の実施の形態】
以下、図面と共に本発明によるモータの水冷構造の好適な実施の形態について説明する。
図1において符号1で示されるものは輪状ステータ2を内面1aに有する筒状ケースであり、この筒状ケース1の周面1bには、螺旋状又はジグザグ状等で形成されこの周面1bを覆うように構成された溝からなる水路部3が形成されている。
【0008】
前記筒状ケース1の周面1bには、この水路部3を密閉状に覆うように輪状外筒4がOリング4aを介して設けられ、この輪状外筒4にはこの水路部3に連通するように入口5及び出口6(図示は省略している)が形成されている。
【0009】
前記筒状ケース1の両端には、前蓋7及び後蓋8がボルト9で接続固定されており、この前蓋7及び後蓋8には軸受10、11が各々設けられている。
前記各軸受10、11間には、回転自在な回転軸12を介してロータ13が回転自在に設けられ、このロータ13は輪状ステータ2の内側に位置している。
【0010】
次に、動作について述べる。まず、図1のように密閉された水路部3が形成された状態で、入口5から水を注入し、出口6を用いて水路部3内に水を循環させると、モータの駆動によって輪状ステータ2の温度が上昇するが、この温度上昇が水冷部3への水の循環によって防止され、モータの定格迄の出力を発揮することができる。
尚、各蓋7、8の中の一方のみは筒状ケース1と一体に形成することもでき、水路部3への水の入口5と出口6の構成も、パイプ等の他の構造とすることもできる。
【0011】
【発明の効果】
本発明によるモータの水冷構造は、以上のように構成されているため、次のような効果を得ることができる。
すなわち、筒状ケースの周面に形成された溝状の水路部を輪状外筒で覆っているため、従来のパイプを加工して得る水路部と比較すると、製作が大幅に容易となり、コストダウン及び信頼性の向上を得ることができる。
【図面の簡単な説明】
【図1】本発明によるモータの水冷構造を示す断面図である。
【符号の説明】
1 筒状ケース
1a 内面
1b 周面
2 輪状ステータ
3 水路部
4 輪状外筒
5 入口
6 出口
7 前蓋
8 後蓋
10、11 軸受
13 ロータ
[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a water cooling structure for a motor, and more particularly to a novel improvement for using a groove formed in the outer peripheral surface of a cylindrical case outside a ring-shaped stator to form a water channel portion without using a pipe.
[0002]
[Prior art]
Conventionally, as a water cooling structure of this type of motor used, a configuration in which a water cooling jacket formed by a pipe is wound around the outer periphery of the motor has been adopted (for example, see Patent Document 1).
That is, although not shown, water is circulated in a spirally formed pipe to suppress the temperature rise of the motor itself.
[0003]
[Patent Document 1]
JP-A-11-287579
[Problems to be solved by the invention]
Since the conventional water cooling structure of the motor is configured as described above, the following problems exist.
That is, since the spiral pipe formed separately from the cylindrical case is attached to the peripheral surface of the cylindrical case of the motor, it is not easy to manufacture the spiral pipe, and much labor and cost are required. This has been a major obstacle to cost reduction and reliability improvement.
[0005]
The present invention has been made in order to solve the above-described problems, and in particular, has a structure in which a channel is formed using a groove formed in the outer peripheral surface of a cylindrical case outside a ring-shaped stator, and a pipe is not used. It is an object of the present invention to provide a water cooling structure for a motor.
[0006]
[Means for Solving the Problems]
The water cooling structure of the motor according to the present invention includes a cylindrical case having a ring-shaped stator on the inner surface, a front lid and a rear lid provided with bearings at both ends of the cylindrical case, and the ring-shaped stator rotatably provided on the bearing. A rotor provided inside, a channel formed of a groove formed on the peripheral surface of the cylindrical case and covered by a ring-shaped outer cylinder, and an inlet and an outlet of water connected to the channel, In this configuration, water is cooled by circulating water through the water channel.
[0007]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, preferred embodiments of a water cooling structure for a motor according to the present invention will be described with reference to the drawings.
In FIG. 1, reference numeral 1 denotes a cylindrical case having a ring-shaped stator 2 on an inner surface 1a, and is formed in a spiral or zigzag shape on a peripheral surface 1b of the cylindrical case 1. A water channel portion 3 composed of a groove configured to cover is formed.
[0008]
An annular outer cylinder 4 is provided on the peripheral surface 1b of the cylindrical case 1 via an O-ring 4a so as to cover the water passage portion 3 in a sealed manner, and the annular outer cylinder 4 communicates with the water passage portion 3. An inlet 5 and an outlet 6 (not shown) are formed in such a manner.
[0009]
A front lid 7 and a rear lid 8 are connected and fixed to both ends of the cylindrical case 1 with bolts 9. The front lid 7 and the rear lid 8 are provided with bearings 10 and 11, respectively.
A rotor 13 is rotatably provided between the bearings 10 and 11 via a rotatable rotating shaft 12, and the rotor 13 is located inside the annular stator 2.
[0010]
Next, the operation will be described. First, in a state in which the closed water channel portion 3 is formed as shown in FIG. 1, water is injected from the inlet 5 and water is circulated in the water channel portion 3 using the outlet 6. 2, the temperature rise is prevented by the circulation of water to the water cooling unit 3, and the output up to the rated value of the motor can be exhibited.
In addition, only one of the lids 7 and 8 can be formed integrally with the cylindrical case 1, and the configuration of the inlet 5 and the outlet 6 of the water to the water channel portion 3 is another structure such as a pipe. You can also.
[0011]
【The invention's effect】
Since the water cooling structure of the motor according to the present invention is configured as described above, the following effects can be obtained.
In other words, since the groove-shaped channel formed on the peripheral surface of the cylindrical case is covered with a ring-shaped outer cylinder, the production is significantly easier and the cost is reduced as compared with a channel obtained by processing a conventional pipe. And improved reliability.
[Brief description of the drawings]
FIG. 1 is a sectional view showing a water cooling structure of a motor according to the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Cylindrical case 1a Inner surface 1b Peripheral surface 2 Annular stator 3 Waterway 4 Annular outer cylinder 5 Inlet 6 Outlet 7 Front lid 8 Rear lid 10, 11 Bearing 13 Rotor

Claims (1)

輪状ステータ(2)を内面(1a)に有する筒状ケース(1)と、前記筒状ケース(1)の両端に設けられ軸受(10、11)を有する前蓋(7)及び後蓋(8)と、前記軸受(10、11)に回転自在に設けられ前記輪状ステータ(2)の内側に設けられたロータ(13)と、前記筒状ケース(1)の周面(1b)に形成され輪状外筒(4)によって覆われた溝からなる水路部(3)と、前記水路部(3)に接続された水の入口(5)及び出口(6)とよりなり、前記水路部(3)に水を循環させることにより水冷を行うように構成したことを特徴とするモータの水冷構造。A cylindrical case (1) having a ring-shaped stator (2) on an inner surface (1a), and a front cover (7) and a rear cover (8) provided at both ends of the cylindrical case (1) and having bearings (10, 11). ), A rotor (13) rotatably provided on the bearings (10, 11) and provided inside the annular stator (2), and a peripheral surface (1b) of the cylindrical case (1). The waterway section (3) is composed of a channel covered with a ring-shaped outer cylinder (4), and includes a water inlet (5) and an outlet (6) connected to the waterway section (3). A) water cooling structure configured to perform water cooling by circulating water through the motor.
JP2003014828A 2003-01-23 2003-01-23 Water-cooling structure of motor Pending JP2004229418A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2003014828A JP2004229418A (en) 2003-01-23 2003-01-23 Water-cooling structure of motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2003014828A JP2004229418A (en) 2003-01-23 2003-01-23 Water-cooling structure of motor

Publications (1)

Publication Number Publication Date
JP2004229418A true JP2004229418A (en) 2004-08-12

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Country Status (1)

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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007020351A (en) * 2005-07-11 2007-01-25 Shinko Electric Co Ltd Cooling-type casing of rotary electric machine
DE102010022303A1 (en) 2009-06-01 2010-12-02 Shimano (Singapore) Pte. Ltd. bicycle generator
JP2015159717A (en) * 2014-02-21 2015-09-03 エスカエフ・マニュティック・メシャトロニク Assembly of module motor and magnetic bearing, and manufacturing method therefor
CN104979936A (en) * 2015-08-10 2015-10-14 陆雄机械(浙江)有限公司 Motor with cooling structure
JP2015211562A (en) * 2014-04-28 2015-11-24 日立オートモティブシステムズ株式会社 Rotary electric machine
JP2016144270A (en) * 2015-01-30 2016-08-08 株式会社クボタ Cooling structure of rotary electric machine
CN106169831A (en) * 2016-08-27 2016-11-30 哈尔滨电机厂(昆明)有限责任公司 A kind of water cooled machine housing of efficient cooling
CN107872122A (en) * 2017-11-01 2018-04-03 青岛中加特变频电机有限公司 A kind of Water Curtain Cooling Device of high-power frequency conversion motor stator
US10574117B2 (en) 2014-06-24 2020-02-25 Kubota Corporation Stator of electric motor and cooling structure of electric rotating machine

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007020351A (en) * 2005-07-11 2007-01-25 Shinko Electric Co Ltd Cooling-type casing of rotary electric machine
DE102010022303A1 (en) 2009-06-01 2010-12-02 Shimano (Singapore) Pte. Ltd. bicycle generator
DE102010022303B4 (en) * 2009-06-01 2013-01-24 Shimano (Singapore) Pte Ltd. bicycle generator
JP2015159717A (en) * 2014-02-21 2015-09-03 エスカエフ・マニュティック・メシャトロニク Assembly of module motor and magnetic bearing, and manufacturing method therefor
JP2020074676A (en) * 2014-02-21 2020-05-14 エスカエフ・マニュティック・メシャトロニク Modular motor and magnetic bearing assembly, and manufacturing method therefor
JP7034189B2 (en) 2014-02-21 2022-03-11 エスカエフ・マニュティック・メシャトロニク Assembly of module motor and magnetic bearing, and its manufacturing method
JP2015211562A (en) * 2014-04-28 2015-11-24 日立オートモティブシステムズ株式会社 Rotary electric machine
US10574117B2 (en) 2014-06-24 2020-02-25 Kubota Corporation Stator of electric motor and cooling structure of electric rotating machine
JP2016144270A (en) * 2015-01-30 2016-08-08 株式会社クボタ Cooling structure of rotary electric machine
CN104979936A (en) * 2015-08-10 2015-10-14 陆雄机械(浙江)有限公司 Motor with cooling structure
CN106169831A (en) * 2016-08-27 2016-11-30 哈尔滨电机厂(昆明)有限责任公司 A kind of water cooled machine housing of efficient cooling
CN107872122A (en) * 2017-11-01 2018-04-03 青岛中加特变频电机有限公司 A kind of Water Curtain Cooling Device of high-power frequency conversion motor stator

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