JP2006296065A - Induction motor - Google Patents

Induction motor Download PDF

Info

Publication number
JP2006296065A
JP2006296065A JP2005112002A JP2005112002A JP2006296065A JP 2006296065 A JP2006296065 A JP 2006296065A JP 2005112002 A JP2005112002 A JP 2005112002A JP 2005112002 A JP2005112002 A JP 2005112002A JP 2006296065 A JP2006296065 A JP 2006296065A
Authority
JP
Japan
Prior art keywords
induction motor
rotor
air
stator
blade piece
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
JP2005112002A
Other languages
Japanese (ja)
Inventor
Akinori Nakamoto
昭則 中本
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP2005112002A priority Critical patent/JP2006296065A/en
Publication of JP2006296065A publication Critical patent/JP2006296065A/en
Pending legal-status Critical Current

Links

Images

Abstract

<P>PROBLEM TO BE SOLVED: To solve a problem that, in a rotor of this kind of an induction motor, an end ring of a rotor core composed of laminated electromagnetic steel plates is constituted of a plurality of protrusions in a prior art, and in this conventional constitution, temperatures of a stator and a winding are raised because air in the induction motor cannot be circulated. <P>SOLUTION: This induction motor is constituted such that the motor has a plurality of penetration holes 5 at the rotor 2 composed of the laminated electromagnetic steel plates, and plate-shaped blade pieces 6 larger than the width of the laminated thickness of the rotor are made to penetrate the penetration holes. The air in the induction motor can be circulated by the blade pieces penetrating the penetration holes, and thereby there can be provided the induction motor simple in constitution, low in price, and improved in cooling performance. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

本発明は、誘導電動機の回転子に関するものである。   The present invention relates to a rotor of an induction motor.

従来、この種の誘導電動機の回転子は、図５に示すように積層電磁鋼板からなる回転子１０１のエンドリング部１０２を複数突起部１０３で構成されていた（例えば、特許文献１参照）。
特開２０００−０６００４５号公報 Conventionally, in this type of induction motor rotor, the end ring portion 102 of the rotor 101 made of laminated electromagnetic steel sheets is composed of a plurality of protrusions 103 as shown in FIG. 5 (see, for example, Patent Document 1).
Japanese Patent Laid-Open No. 2000-060045

しかしながら、前記従来の構成では、エンドリング部１０２の複数の突起部１０３だけでは誘導電動機内の空気を循環できないため、固定子及び巻線の温度上昇が高くなるという課題を有していた。   However, in the conventional configuration, air in the induction motor cannot be circulated only by the plurality of protrusions 103 of the end ring portion 102, so that the temperature rise of the stator and the windings is increased.

本発明は、前記従来の課題を解決するもので、積層電磁鋼板からなる回転子に複数の貫通穴を有し、貫通穴に回転子の積厚幅より大きくした板状の羽根片を貫通することにより、羽根片により誘導電動機内の空気を循環させることができる。簡易な構成で安価、かつ冷却性能を向上させる誘導電動機を提供することを目的とする。   The present invention solves the above-mentioned conventional problems, and a rotor made of laminated electromagnetic steel sheets has a plurality of through holes, and penetrates a plate-shaped blade piece larger than the thickness of the rotor in the through hole. Thus, the air in the induction motor can be circulated by the blade pieces. An object of the present invention is to provide an induction motor that has a simple configuration and is inexpensive and improves the cooling performance.

前記従来の課題を解決するために、本発明の誘導電動機は、ベアリングを介して回転自由に保持された積層電磁鋼板からなる回転子と、前記ベアリングを保持するブラケットと、前記ブラケットにより挟み込まれた前記固定子を有する誘導電動機であって、前記回転子に複数の貫通穴を有し、貫通穴に回転子の積厚幅より大きくした板状の羽根片を貫通する構造とする。また、羽根片の取付け取付け角度を変化させることにより、より放熱効果が向上する。   In order to solve the conventional problems, an induction motor according to the present invention is sandwiched between a rotor made of laminated electromagnetic steel plates that are freely rotatably supported via a bearing, a bracket that holds the bearing, and the bracket. The induction motor having the stator has a structure in which the rotor has a plurality of through holes, and a plate-like blade piece that is larger than the stacking width of the rotor passes through the through holes. Moreover, the heat dissipation effect is further improved by changing the attachment angle of the blade pieces.

本発明の誘導電動機は回転子に複数の貫通穴を有し、貫通穴に回転子の積厚幅より大きくした板状の羽根片を貫通する構造とする。羽根片を板状にすることにより貫通穴に貫通するだけで安価な構成により風の流れを作ることができる。複数の貫通穴と板状の羽根片により誘導電動機内の空気が羽根片により貫通穴を通り循環することができる。空気を循環することにより、固定子及び巻線の温度を下げることができる。また、羽根片の取付け角度を変化させることにより、より循環効率が高まり放熱効果が向上する。   The induction motor according to the present invention has a structure in which a rotor has a plurality of through holes, and plate-like blade pieces that are larger than the thickness of the rotor are passed through the through holes. By making the blade piece into a plate shape, it is possible to create a flow of wind with an inexpensive configuration simply by penetrating through the through hole. The air in the induction motor can be circulated through the through holes by the blade pieces by the plurality of through holes and the plate-like blade pieces. By circulating the air, the temperature of the stator and the winding can be lowered. Further, by changing the attachment angle of the blade piece, the circulation efficiency is further increased and the heat dissipation effect is improved.

第１の発明は、ベアリングを介して回転自由に保持された積層電磁鋼板からなる回転子と、前記ベアリングを保持するブラケットと、前記ブラケットにより挟み込まれた固定子を有する誘導電動機であって、前記回転子に複数の貫通穴を有し、貫通穴に回転子の積厚幅より大きくした板状の羽根片を貫通する構造とする。複数の貫通穴と板状の羽根片により誘導電動機内の空気が羽根片により貫通穴を通り循環することができる。空気が循環することにより、固定子及び巻線の温度を下げることができる。   1st invention is the induction motor which has the rotor which consists of a laminated electromagnetic steel plate hold | maintained freely via a bearing, the bracket holding the said bearing, and the stator pinched | interposed by the said bracket, The rotor has a plurality of through holes, and a plate-like blade piece that is larger than the rotor stack thickness is passed through the through hole. The air in the induction motor can be circulated through the through holes by the blade pieces by the plurality of through holes and the plate-like blade pieces. By circulating the air, the temperature of the stator and the winding can be lowered.

第２の発明は、回転子の回転方向に対し羽根片の角度を変化させた構造とすることによりより空気の循環効率が高まり、固定子及び巻線の温度を下げることができる。   According to the second aspect of the present invention, the air circulation efficiency can be further increased and the temperature of the stator and the winding can be lowered by adopting a structure in which the angle of the blade piece is changed with respect to the rotation direction of the rotor.

第３の発明は、羽根片をアルミ材、または鉄材により構成することにより羽根片の角度を自由にかえられる。羽根片の角度により、より空気の循環効率が高まり固定子及び巻線の温度を下げることができる。   In the third invention, the angle of the blade piece can be changed freely by configuring the blade piece with an aluminum material or an iron material. Depending on the angle of the blade piece, the air circulation efficiency is further increased, and the temperature of the stator and the winding can be lowered.

上記実施の形態１〜３の誘導電動機は空気調和機の室外機に使用されるのが好ましい。空気調和機の室外機は、冷房運転時熱交換器により高温となり送風ファンにより誘導電動機に高温の風があたり、誘導電動機の内部温度が上昇する。誘導電動機の回転子に複数の貫通穴を有し、貫通穴に回転子の積厚幅より大きくした板状の羽根片を貫通する構造とすることにより誘導電動機内の空気が羽根片により貫通穴を通り循環することができる。空気が循環することにより、固定子及び巻線の温度を下げることができる。   The induction motors of Embodiments 1 to 3 are preferably used for an outdoor unit of an air conditioner. The outdoor unit of the air conditioner becomes high temperature by the heat exchanger during cooling operation, and high temperature wind hits the induction motor by the blower fan, and the internal temperature of the induction motor increases. The induction motor rotor has a plurality of through-holes, and a plate-like blade piece larger than the rotor stack thickness is passed through the through-hole so that air in the induction motor is penetrated by the blade pieces. Can be circulated through. By circulating the air, the temperature of the stator and the winding can be lowered.

以下、本発明の実施の形態について、図面を参照しながら説明する。なお、この実施の形態によって本発明が限定されるものではない。   Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that the present invention is not limited to the embodiments.

（実施の形態１）
図１は、本発明の実施の形態１における誘導電動機の部分断面図、図２は回転子の断面図、図３は回転子の端面図を示す。 (Embodiment 1)
1 is a partial cross-sectional view of an induction motor according to Embodiment 1 of the present invention, FIG. 2 is a cross-sectional view of a rotor, and FIG. 3 is an end view of the rotor.

本実施の形態は、ベアリング１をして回転自由に保持された積層電磁鋼板からなる回転子２、前記ベアリング1を保持するブラケットＡ３、Ｂ４、前記ブラケットＡ３、Ｂ４より挟み込まれた固定子８を有する誘導電動機であって、前記回転子２にΦ１０ｍｍの貫通穴５を４個を有す。貫通穴５を貫通する羽根片６の大きさは高さ１１ｍｍ、厚み１ｍｍとする。また、長さ方向は回転子２の積厚幅より１０ｍｍ大きくした長さ４０ｍｍ（回転子積厚３０ｍｍの時）とする。羽根片の高さ方向を貫通穴より少し大きくすることにより羽根片６を貫通穴５に貫通するだけで羽根片６の固定が容易にできる。回転子２の回転により誘導電動機内の空気が羽根片６に当り、貫通穴５通りぬけ空気が循環される。空気が循環することにより固定子８及び巻線７の温度を下げることができる。   In the present embodiment, a rotor 2 made of a laminated electromagnetic steel plate that is rotatably supported by a bearing 1, a bracket A 3, B 4 that holds the bearing 1, and a stator 8 that is sandwiched between the brackets A 3, B 4 are provided. The rotor 2 has four through holes 5 having a diameter of 10 mm. The size of the blade piece 6 that penetrates the through hole 5 is 11 mm in height and 1 mm in thickness. The length direction is 40 mm (when the rotor thickness is 30 mm), which is 10 mm larger than the thickness of the rotor 2. By making the height direction of the blade piece slightly larger than the through hole, the blade piece 6 can be easily fixed only by passing the blade piece 6 through the through hole 5. The rotation of the rotor 2 causes the air in the induction motor to hit the blade piece 6 and circulate through the through hole 5. By circulating air, the temperature of the stator 8 and the winding 7 can be lowered.

（実施の形態２）
図４は実施の形態２の断面図を示す。本実施の形態は、前記実施の形態１と羽根片に角度において相違しその他の点では実施の形態１と同様である。 (Embodiment 2)
FIG. 4 shows a cross-sectional view of the second embodiment. This embodiment is different from the first embodiment in the angle of the blade pieces, and is the same as the first embodiment in other points.

実施の形態２の羽根片６ａを貫通穴５ａの空気の入り口側を回転方向に対し45°傾け、出口方向は出口とは逆に４５°傾ける。羽根片６ａをＳ字状にすることにより、より空気の循環効率が上がり固定子８及び巻線７の温度を下げることができる。   In the blade piece 6a of the second embodiment, the air inlet side of the through hole 5a is inclined 45 ° with respect to the rotation direction, and the outlet direction is inclined 45 ° opposite to the outlet. By making the blade piece 6a into an S shape, the air circulation efficiency is further increased, and the temperature of the stator 8 and the winding 7 can be lowered.

（実施の形態３）
本実施の形態は、羽根片６ａをアルミ材、鉄材にすることにより、羽根片６ａの角度が自在にでき、使用回転数により羽根片６ａの角度を決められる。羽根片６ａの角度を最適にすることにより空気の循環効率を高めることができる。循環効率が高まることにより固定子８及び巻線７の温度を下げることができる。 (Embodiment 3)
In the present embodiment, the vane piece 6a is made of an aluminum material or an iron material, whereby the angle of the vane piece 6a can be freely determined, and the angle of the vane piece 6a can be determined by the number of rotations used. The air circulation efficiency can be increased by optimizing the angle of the blade piece 6a. By increasing the circulation efficiency, the temperature of the stator 8 and the winding 7 can be lowered.

（実施の形態４）
上記実施の形態１〜３の誘導電動機は空気調和機の室外機に使用されるのが好ましい。空気調和機の室外機は、冷房運転時熱交換器により高温となり送風ファンにより誘導電動機に風があたり、誘導電動機の内部温度が上昇する。誘導電動機の回転子に複数の貫通穴を有し、貫通穴に回転子の積厚幅より大きくした板状の羽根片を貫通する構造とすることにより誘導電動機内の空気が羽根片により貫通穴を通り循環することができる。空気が循環することにより、固定子及び巻線の温度を下げることができる。本発明の誘導電動機を空気調和機用室外機に使用すると本発明の効果がより顕著に発現する。 (Embodiment 4)
The induction motors of Embodiments 1 to 3 are preferably used for an outdoor unit of an air conditioner. The outdoor unit of the air conditioner becomes high temperature by the heat exchanger during cooling operation, and the wind blows on the induction motor by the blower fan, and the internal temperature of the induction motor rises. The induction motor rotor has a plurality of through holes, and a plate-like blade piece that is larger than the rotor stack thickness is passed through the through hole so that the air in the induction motor is penetrated by the blade pieces. Can be circulated through. By circulating the air, the temperature of the stator and the winding can be lowered. When the induction motor of the present invention is used for an outdoor unit for an air conditioner, the effects of the present invention are more remarkably exhibited.

以上のように、本発明にかかる誘導電動機は回転子に複数の貫通穴を有し、貫通穴に回転子の積厚幅より大きくした板状の羽根片を貫通する構造とすることにより、誘導電動機内の空気が羽根片により貫通穴を通り循環することができる。空気が循環することにより、固定子及び巻線の温度を下げることができる。また、羽根片の取付け角度を変化させることにより、より循環効率が高まり放熱効果が向上するため、空気調和機の室外機のモ−タ等の用途にも適用できる。   As described above, the induction motor according to the present invention has a structure in which a rotor has a plurality of through holes and a plate-like blade piece that is larger than the thickness of the rotor is inserted into the through hole. Air in the motor can be circulated through the through hole by the blade piece. By circulating the air, the temperature of the stator and the winding can be lowered. Further, since the circulation efficiency is improved and the heat dissipation effect is improved by changing the attachment angle of the blade piece, the present invention can be applied to a motor of an outdoor unit of an air conditioner.

本発明の実施の形態１における誘導電動機の部分断面図Partial sectional view of the induction motor according to Embodiment 1 of the present invention. 本発明の実施の形態１における回転子の断面図Sectional drawing of the rotor in Embodiment 1 of this invention 本発明の実施の形態１における回転子の端面図End view of the rotor according to the first embodiment of the present invention 本発明の実施の形態２における回転子の断面図Sectional drawing of the rotor in Embodiment 2 of this invention 従来の誘導電動機の部分断面図Partial sectional view of a conventional induction motor

符号の説明Explanation of symbols

１ ベアリング
２ 回転子
３ ブラケットＡ
４ ブラケットＢ
５ 貫通穴
６ 羽根片
７ 巻線
８ 固定子 1 Bearing 2 Rotor 3 Bracket A
4 Bracket B
5 Through hole 6 Blade piece 7 Winding 8 Stator

Claims (4)

ベアリングを介して回転自由に保持された積層電磁鋼板からなる回転子と、前記ベアリングを保持するブラケットと、前記ブラケットにより挟み込まれた固定子を有する誘導電動機であって、前記回転子に複数の貫通穴を有し、この貫通穴に前記回転子の積厚幅より大きくした板状の羽根片を貫通した構造としたことを特徴とする誘導電動機。 An induction motor having a rotor made of laminated electromagnetic steel plates that are rotatably held via a bearing, a bracket that holds the bearing, and a stator that is sandwiched by the bracket, and a plurality of penetrating through the rotor An induction motor having a hole and a structure in which a plate-like blade piece that is larger than the thickness of the rotor is penetrated through the through hole. 回転子の回転方向に対し板状の羽根片の角度を変化させた構造とした請求項１に記載の誘導電動機。 The induction motor according to claim 1, wherein the angle of the plate-like blade piece is changed with respect to the rotation direction of the rotor. 羽根片をアルミ材または鉄材により構成した請求項１に記載の誘導電動機。 The induction motor according to claim 1, wherein the blade pieces are made of an aluminum material or an iron material. 請求項１〜３のいずれか１項に記載の誘導電動機を用いた空気調和機。 The air conditioner using the induction motor of any one of Claims 1-3.
JP2005112002A 2005-04-08 2005-04-08 Induction motor Pending JP2006296065A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2005112002A JP2006296065A (en) 2005-04-08 2005-04-08 Induction motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2005112002A JP2006296065A (en) 2005-04-08 2005-04-08 Induction motor

Publications (1)

Publication Number Publication Date
JP2006296065A true JP2006296065A (en) 2006-10-26

Family

ID=37416028

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2005112002A Pending JP2006296065A (en) 2005-04-08 2005-04-08 Induction motor

Country Status (1)

Country Link
JP (1) JP2006296065A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107340732A (en) * 2016-04-28 2017-11-10 发那科株式会社 Servocontrol device and method of servo-controlling
WO2024009414A1 (en) * 2022-07-06 2024-01-11 三菱電機株式会社 Rotary electric machine

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5890063U (en) * 1981-12-11 1983-06-18 株式会社東芝 Cooling device for rotating electrical machines
JPH0865933A (en) * 1994-08-11 1996-03-08 Matsushita Electric Ind Co Ltd Rotor core of motor
JP2002078291A (en) * 2000-08-24 2002-03-15 Toshiba Corp Rotor of rotary electric machine

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5890063U (en) * 1981-12-11 1983-06-18 株式会社東芝 Cooling device for rotating electrical machines
JPH0865933A (en) * 1994-08-11 1996-03-08 Matsushita Electric Ind Co Ltd Rotor core of motor
JP2002078291A (en) * 2000-08-24 2002-03-15 Toshiba Corp Rotor of rotary electric machine

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107340732A (en) * 2016-04-28 2017-11-10 发那科株式会社 Servocontrol device and method of servo-controlling
CN107340732B (en) * 2016-04-28 2019-06-14 发那科株式会社 Servocontrol device and method of servo-controlling
WO2024009414A1 (en) * 2022-07-06 2024-01-11 三菱電機株式会社 Rotary electric machine

Similar Documents

Publication Publication Date Title
JP5692985B2 (en) Equipment for electromechanical cooling
JP5032782B2 (en) Blower with cooling means
KR20100134570A (en) Permanent magnet embedded type rotor, electric motor using the same, and electric equipment
KR20090024643A (en) Apparatus and method for cooling rotor and stator motor cores
JP2007182880A (en) Heat dissipation fan
US20180358849A1 (en) Rotary electrical machine
JP2009542168A (en) Method and apparatus for cooling an electric machine
TWI231172B (en) Heat-dissipating device and motor structure thereof
JP2014033584A (en) Wind cooling structure of rotary electric machine
JP2014016084A (en) Outdoor unit of air conditioner
JP2008099506A (en) Induction motor
US7066721B2 (en) Ceiling fan motors
CN101772291A (en) Radiating device, and fan device and fan thereof
JP2006296065A (en) Induction motor
JP5523258B2 (en) Electric motor
JP2006042543A (en) Induction motor
EP2587052A1 (en) Wind turbine with cooling system
CN113178966B (en) Motor ventilation groove structure, stator and motor
JP2000236639A (en) Rotor and brushless motor as well as motor-driven blower
JP2010051170A (en) Method and apparatus for cooling power generators
US20220034326A1 (en) Air circulator having dual rotary vane
JP4768737B2 (en) Electric motor with air-cooled electronic circuit
KR100548492B1 (en) Rotor having cooling apparatus for bldc motor
KR20070100525A (en) Fan and air conditioner having the same
JP6896066B2 (en) Motors, blowers, outdoor units, and air conditioners

Legal Events

Date Code Title Description
A621 Written request for application examination

Effective date: 20070829

Free format text: JAPANESE INTERMEDIATE CODE: A621

RD01 Notification of change of attorney

Free format text: JAPANESE INTERMEDIATE CODE: A7421

Effective date: 20070912

A977 Report on retrieval

Effective date: 20091109

Free format text: JAPANESE INTERMEDIATE CODE: A971007

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20091124

RD01 Notification of change of attorney

Effective date: 20091126

Free format text: JAPANESE INTERMEDIATE CODE: A7421

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20100114

A02 Decision of refusal

Free format text: JAPANESE INTERMEDIATE CODE: A02

Effective date: 20100330