JP2001251818A - Manufacturing method for motor rotor - Google Patents

Manufacturing method for motor rotor

Info

Publication number
JP2001251818A
JP2001251818A JP2000059969A JP2000059969A JP2001251818A JP 2001251818 A JP2001251818 A JP 2001251818A JP 2000059969 A JP2000059969 A JP 2000059969A JP 2000059969 A JP2000059969 A JP 2000059969A JP 2001251818 A JP2001251818 A JP 2001251818A
Authority
JP
Japan
Prior art keywords
rotor
magnet
manufacturing
motor rotor
arc
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
JP2000059969A
Other languages
Japanese (ja)
Other versions
JP3309844B2 (en
Inventor
Masahiko Morizaki
昌彦 森崎
Mototeru Kondo
元輝 近藤
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.)
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 JP2000059969A priority Critical patent/JP3309844B2/en
Publication of JP2001251818A publication Critical patent/JP2001251818A/en
Application granted granted Critical
Publication of JP3309844B2 publication Critical patent/JP3309844B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Abstract

PROBLEM TO BE SOLVED: To provide the reliable rotor of a motor with enhanced productivity and accuracy for use as a driving source for various types of household electrical appliances. SOLUTION: When parts are integrally molded, magnets are positioned by a metal mold in the radial direction and in the rotational direction, and thereby productivity is improved. In addition, magnets with uneven thickness being used, the outside diameter of the rotor is kept in a perfect circle, and a uniform mechanical gap is maintained. As a result, reliability of the rotor which is a rotating body is fully ensured.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【発明の属する技術分野】本発明は各種家電製品の駆動
源として使用される電動機の回転子の製造方法に関す
る。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for manufacturing a rotor of a motor used as a drive source for various home appliances.

【0002】[0002]

【従来の技術】図4は従来の電動機のロータ構成の1例
である。1はステータヨーク、2はロータヨーク、3は
マグネット、4はロータヨークと出力軸の絶縁を目的と
した絶縁物、5は出力伝達部、7はロータの位置検出を
目的としたセンサ、9はマグネットを固定するパイプで
ある。
2. Description of the Related Art FIG. 4 shows an example of a rotor configuration of a conventional motor. 1 is a stator yoke, 2 is a rotor yoke, 3 is a magnet, 4 is an insulator for insulating the rotor yoke from the output shaft, 5 is an output transmission unit, 7 is a sensor for detecting the position of the rotor, and 9 is a magnet. It is a pipe to be fixed.

【0003】従来の構成においては、マグネットをロー
タヨークに接着し、さらに場合によってはマグネットの
保護と飛散防止のため後工程でパイプを焼きばめすると
いった製造方法を取らなければならない。
In the conventional configuration, a manufacturing method must be adopted in which a magnet is bonded to a rotor yoke, and in some cases, a pipe is shrink-fitted in a later process for protecting the magnet and preventing scattering.

【0004】[0004]

【発明が解決しようとする課題】上記従来の構成におい
ては、マグネットをロータヨークに接着し、さらに場合
によってはマグネットの保護と飛散防止のため後工程で
パイプを焼きばめするといった製造方法を取らなければ
ならないため、非常に工数がかかる。
In the above-mentioned conventional construction, it is necessary to adopt a manufacturing method in which a magnet is bonded to a rotor yoke, and in some cases, a pipe is shrink-fitted in a later step for protection of the magnet and prevention of scattering. This requires a lot of man-hours.

【0005】本発明における請求項1および2はロータ
を一体成形する際に接着等の工数をかけずに金型内で半
径方向、回転方向の位置決めを正確に行うことを目的と
する。
It is an object of the present invention to accurately perform positioning in a radial direction and a rotational direction in a mold without using man-hours such as bonding when integrally molding a rotor.

【0006】本発明における請求項3は請求項1または
2による一体成形の際に、マグネットの飛散強度を向上
することを目的とする。
A third object of the present invention is to improve the scattering strength of the magnet during the integral molding according to the first or second embodiment.

【0007】[0007]

【課題を解決するための手段】この課題を解決するため
に本発明の請求項1、2は、金型にマグネットを位置決
めすることを目的とする突起を設けた構成を有してい
る。
In order to solve this problem, claims 1 and 2 of the present invention have a configuration in which a projection for positioning a magnet on a mold is provided.

【0008】請求項3は、一体成形において偏肉マグネ
ットを固定するとともに径方向の樹脂厚みを不均一にし
た構成を有している。
According to a third aspect of the present invention, the uneven thickness magnet is fixed in the integral molding and the thickness of the resin in the radial direction is made non-uniform.

【0009】これらにより生産性が良く、信頼性の高い
電動機のロータを提供することができる。
As a result, it is possible to provide a highly reliable electric motor rotor with good productivity.

【0010】[0010]

【発明の実施の形態】以下、本発明の実施の形態につい
て、図1、図2、図3を用いて説明する。
DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to FIGS.

【0011】(実施の形態)図1は本発明のロータの横
断面図であり、図2は本発明のロータの縦断面図、図3
はマグネットの回転方向位置決めの状態を示している。
1はステータヨーク、2はロータヨーク、3は偏肉仕様
のマグネット、4は絶縁物、5は出力伝達部(出力軸相
当)、6はマグネットの位置決め溝、7はロータの位置
検出センサである。図1および図2に示す部品の配置に
より、4の絶縁物によって一体成形される構成となって
いる。
(Embodiment) FIG. 1 is a transverse sectional view of a rotor of the present invention, FIG. 2 is a longitudinal sectional view of the rotor of the present invention, and FIG.
Indicates the state of positioning of the magnet in the rotation direction.
1 is a stator yoke, 2 is a rotor yoke, 3 is a magnet with uneven thickness specification, 4 is an insulator, 5 is an output transmission unit (corresponding to an output shaft), 6 is a magnet positioning groove, and 7 is a rotor position detection sensor. With the arrangement of the components shown in FIGS. 1 and 2, the configuration is such that the components are integrally molded with the four insulators.

【0012】この際、一体成形時にマグネットの半径方
向へのずれを防止するため、金型にマグネットの肉厚部
を位置決めする突起6aを設け、同時に回転方向へのず
れを防止するため、金型にマグネット間に挿入される突
起6bを設けておくことにより、一体成形後これら突起
による溝が残る構成となっている。
At this time, in order to prevent the magnet from shifting in the radial direction during the integral molding, a projection 6a for positioning the thick part of the magnet is provided on the mold, and at the same time, the mold is prevented from shifting in the rotating direction. By providing the projections 6b inserted between the magnets, grooves formed by these projections remain after integral molding.

【0013】さらに3のような偏肉マグネットを使用す
ることにより、ロータ外形部と磁石間の樹脂の肉厚を不
均一にすること、すなわちロータ外形は真円のままを保
つ構成とすることにより、マグネットの薄肉部に樹脂が
充填され、本ロータのような回転体においても使用上問
題ない強度を確保することができる。
Further, by using the uneven thickness magnet as described in 3, the thickness of the resin between the outer portion of the rotor and the magnet is made non-uniform, ie, the outer shape of the rotor is maintained as a perfect circle. In addition, the thin portion of the magnet is filled with the resin, so that the strength of the rotating body such as the rotor can be ensured without any problem in use.

【0014】[0014]

【発明の効果】以上のように請求項1、2の発明によれ
ば、各部品を一体成形する際に金型で位置決めをするこ
とにより生産性を向上することができる。
As described above, according to the first and second aspects of the present invention, productivity can be improved by positioning with a die when integrally molding each part.

【0015】また、請求項3の発明によれば偏肉仕様の
マグネットを使用し、ロータの外径は真円のままで機械
的ギャップを均一に保つことにより、回転体であるロー
タの信頼性も十分に確保することができる。
According to the third aspect of the present invention, the reliability of the rotor, which is a rotating body, is improved by using a magnet with an uneven thickness specification and keeping the mechanical gap uniform while keeping the outer diameter of the rotor a perfect circle. Can also be secured.

【図面の簡単な説明】[Brief description of the drawings]

【図1】本発明における電動機のロータの横断面図FIG. 1 is a cross-sectional view of a rotor of an electric motor according to the present invention.

【図2】本発明における電動機のロータの縦断面図FIG. 2 is a longitudinal sectional view of a rotor of the electric motor according to the present invention.

【図3】本発明におけるマグネットの位置決めの状態図FIG. 3 is a state diagram of positioning of a magnet in the present invention.

【図4】(a)従来の電動機のロータの横断面図(b)
従来の電動機のロータの縦断面図
FIG. 4A is a cross-sectional view of a conventional motor rotor.
Longitudinal sectional view of a conventional motor rotor

【符号の説明】[Explanation of symbols]

1 ステータヨーク 2 ロータヨーク 3 マグネット 4 絶縁物 5 出力伝達部 6 マグネット位置決め溝 7 位置検出センサ 8 マグネット固定パイプ DESCRIPTION OF SYMBOLS 1 Stator yoke 2 Rotor yoke 3 Magnet 4 Insulator 5 Output transmission part 6 Magnet positioning groove 7 Position detection sensor 8 Magnet fixed pipe

───────────────────────────────────────────────────── フロントページの続き Fターム(参考) 5H002 AA08 AB07 AC07 5H615 AA01 BB01 BB14 PP02 SS15 SS44 5H622 CA02 CA07 CA13 CB04 PP03 PP20 QA03 QA10  ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 5H002 AA08 AB07 AC07 5H615 AA01 BB01 BB14 PP02 SS15 SS44 5H622 CA02 CA07 CA13 CB04 PP03 PP20 QA03 QA10

Claims (3)

【特許請求の範囲】[Claims] 【請求項1】 出力伝達部と略円筒形状のロータヨーク
と前記ロータヨークの外周面に沿って並べて配置された
複数の円弧形状マグネットとからなり、電気絶縁性を有
する合成樹脂にて、前記出力伝達部とロータヨークと複
数の円弧形状マグネットとを、少なくとも周方向におい
て包囲するように一体成形する電動機ロータの製造方法
であって、一体成形を行うための樹脂成形金型に前記円
弧形状マグネットに対して外径方向から接触する突起を
設けることによりマグネット径方向位置決めをすること
を特徴とする電動機ロータの製造方法。
The output transmission unit is composed of an output transmission unit, a substantially cylindrical rotor yoke, and a plurality of arc-shaped magnets arranged side by side along the outer peripheral surface of the rotor yoke. And a rotor yoke and a plurality of arc-shaped magnets are integrally molded so as to surround at least in a circumferential direction, wherein a resin molding die for integral molding is provided with respect to the arc-shaped magnets. A method for manufacturing a motor rotor, comprising: positioning a magnet in a radial direction by providing a protrusion that comes into contact with the rotor in a radial direction.
【請求項2】 請求項1記載の電動機ロータの製造方法
であって、樹脂成形金型にそれぞれの円弧形状マグネッ
トに対して周方向で接触する突起を設けることによりマ
グネット回転方向位置決めをすることを特徴とする電動
機ロータの製造方法。
2. The method for manufacturing a motor rotor according to claim 1, wherein the resin molding die is provided with a projection that comes into contact with each of the arc-shaped magnets in a circumferential direction to perform positioning in the magnet rotation direction. A method for manufacturing an electric motor rotor.
【請求項3】 請求項1または2記載の電動機ロータの
製造方法であって、円弧形状マグネット肉厚を中央部が
端部に対して厚い偏肉形状とすることにより径方向の合
成樹脂厚みを周方向で不均一にしたことを特徴とする電
動機ロータの製造方法。
3. The method for manufacturing a motor rotor according to claim 1, wherein the thickness of the synthetic resin in the radial direction is reduced by making the thickness of the arc-shaped magnet thicker at the center than at the ends. A method for manufacturing a motor rotor, wherein the motor rotor is made non-uniform in a circumferential direction.
JP2000059969A 2000-03-06 2000-03-06 Method of manufacturing motor rotor Expired - Lifetime JP3309844B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2000059969A JP3309844B2 (en) 2000-03-06 2000-03-06 Method of manufacturing motor rotor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2000059969A JP3309844B2 (en) 2000-03-06 2000-03-06 Method of manufacturing motor rotor

Publications (2)

Publication Number Publication Date
JP2001251818A true JP2001251818A (en) 2001-09-14
JP3309844B2 JP3309844B2 (en) 2002-07-29

Family

ID=18580356

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2000059969A Expired - Lifetime JP3309844B2 (en) 2000-03-06 2000-03-06 Method of manufacturing motor rotor

Country Status (1)

Country Link
JP (1) JP3309844B2 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7030206B2 (en) 2003-03-19 2006-04-18 Honda Motor Co., Ltd. Polymer electrolyte and proton-conducting membrane
WO2012035887A1 (en) * 2010-09-17 2012-03-22 日産自動車株式会社 Vehicle motor
WO2015074774A3 (en) * 2013-11-21 2016-03-10 Robert Bosch Gmbh Machine component for an electric machine
KR101728543B1 (en) 2009-12-23 2017-04-20 엘지이노텍 주식회사 Rotor of motor

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7030206B2 (en) 2003-03-19 2006-04-18 Honda Motor Co., Ltd. Polymer electrolyte and proton-conducting membrane
KR101728543B1 (en) 2009-12-23 2017-04-20 엘지이노텍 주식회사 Rotor of motor
WO2012035887A1 (en) * 2010-09-17 2012-03-22 日産自動車株式会社 Vehicle motor
JP2012065499A (en) * 2010-09-17 2012-03-29 Nissan Motor Co Ltd Vehicle motor
WO2015074774A3 (en) * 2013-11-21 2016-03-10 Robert Bosch Gmbh Machine component for an electric machine
CN106030986A (en) * 2013-11-21 2016-10-12 罗伯特·博世有限公司 Machine component for an electric machine

Also Published As

Publication number Publication date
JP3309844B2 (en) 2002-07-29

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