JPH10295050A - Motor - Google Patents

Motor

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Publication number
JPH10295050A
JPH10295050A JP11439997A JP11439997A JPH10295050A JP H10295050 A JPH10295050 A JP H10295050A JP 11439997 A JP11439997 A JP 11439997A JP 11439997 A JP11439997 A JP 11439997A JP H10295050 A JPH10295050 A JP H10295050A
Authority
JP
Japan
Prior art keywords
stator
bracket
electromagnetic vibration
displacement
circumferential face
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
JP11439997A
Other languages
Japanese (ja)
Inventor
Yusuke Kikuchi
祐介 菊地
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 JP11439997A priority Critical patent/JPH10295050A/en
Publication of JPH10295050A publication Critical patent/JPH10295050A/en
Pending legal-status Critical Current

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Abstract

PROBLEM TO BE SOLVED: To prevent electromagnetic vibration generated by a stator from being transmitted to a vibration generated by a stator from being transmitted to a bracket by a method, wherein a protrusion is formed on the outer circumferential face of the stator, in which a displacement by the electromagnetic vibration on the outer circumferential face of the stator becomes zero or close to zero and the stator is housed, via the protrusion, in the inner circumferential part of the bracket so as to be fixed. SOLUTION: A stator core 1 is constituted of a ring-shaped back yoke and of teeth which protrude to the shaft center from the inner circumferential face of the back yoke, and a plurality protrusion 4 are formed on the outer circumferential face of the back yoke. As the positions of the protrusions 4, positions in which a power supply are supplied to a coil so as to generate an electromagnetic vibration, in which a displacement in an arbitrary position on the outer circumferential face of the stator core is measured and in which the displacement of the electromagnetic vibration becomes minimum are selected. When the protrusions 4 are formed in this manner, a stator 5 is attached to a bracket 9 at a place in which the displacement by the electromagnetic vibration on the outer circumferential face of the stator core 1 becomes minimum, and the electromagnetic vibration which is transmitted to the bracket can be suppressed to a minimum.

Description

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

【0001】[0001]

【産業上の利用分野】鋼板製のブラケット内に収納され
る固定子を有する電動機に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electric motor having a stator housed in a steel plate bracket.

【0002】[0002]

【従来の技術】鋼板製ブラケット内に収納される固定子
を有する従来の直流電動機を例に、図5を用いて説明す
る。図5は、従来における直流電動機の部分断面図であ
る。
2. Description of the Related Art A conventional DC motor having a stator housed in a steel plate bracket will be described with reference to FIG. FIG. 5 is a partial cross-sectional view of a conventional DC motor.

【0003】図5において、直流電動機11は、固定子
12と、この固定子12の内周部に収納され、回転自在
に取り付けられた回転子13と、固定子12を収納した
ブラケット14等により構成されている。また、固定子
12の外周面が、ブラッケット14の内周面に圧入、ま
たは接着して固定されている。このブラケット14は、
固定子12、回転子13等の固定、および保護の役割を
果たしており、また、他の装置に直流電動機11を固定
する固定用部材としても用いられる。
In FIG. 5, a DC motor 11 includes a stator 12, a rotor 13 housed in an inner peripheral portion of the stator 12, and rotatably mounted, a bracket 14 housing the stator 12, and the like. It is configured. Further, the outer peripheral surface of the stator 12 is fixed to the inner peripheral surface of the bracket 14 by press-fitting or bonding. This bracket 14
It plays a role of fixing and protecting the stator 12, the rotor 13, and the like, and is also used as a fixing member for fixing the DC motor 11 to another device.

【0004】固定子12は、輪状に形成されたバックヨ
ーク15とこのバックヨーク15の内周部より軸中心に
向かって延出したティース16とを備えた固定子コア1
7と、この固定子コア17のティース16に巻回された
コイル18と、固定子コア17とコイル18の間に設け
られ、電気的絶縁を行うコイル絶縁材19とで構成され
ている。
The stator 12 includes a stator core 1 having a ring-shaped back yoke 15 and teeth 16 extending from the inner periphery of the back yoke 15 toward the axial center.
7, a coil 18 wound around the teeth 16 of the stator core 17, and a coil insulating material 19 provided between the stator core 17 and the coil 18 for electrical insulation.

【0005】回転子13は、シャフト20と、このシャ
フトの20外周面に取り付けられた筒状のヨーク21
と、このヨーク21の外周に取り付けられた永久磁石2
2とで構成されている。
The rotor 13 includes a shaft 20 and a cylindrical yoke 21 mounted on the outer peripheral surface of the shaft 20.
And the permanent magnet 2 attached to the outer periphery of the yoke 21
And 2.

【0006】そして、固定子コア17に巻回されている
コイル18に電源を供給することにより、磁界を発生さ
せ回転子12を回転させている。
Power is supplied to the coil 18 wound around the stator core 17 to generate a magnetic field and rotate the rotor 12.

【0007】[0007]

【発明が解決しようとする課題】以上のように従来の電
動機は、固定子の外周面全体をブラケットの内周面に圧
入、または接着して取り付けられている。この電動機に
電源を供給すると、回転子は回転するが、このとき、固
定子は電磁振動を発生する。そして、この電磁振動が、
鋼板製のブラケットに伝達されると、ブラケットが共振
して、騒音の原因となることがあった。
As described above, in the conventional electric motor, the entire outer peripheral surface of the stator is press-fitted or adhered to the inner peripheral surface of the bracket. When power is supplied to the electric motor, the rotor rotates, but at this time, the stator generates electromagnetic vibration. And this electromagnetic vibration,
When transmitted to a steel plate bracket, the bracket may resonate and cause noise.

【0008】[0008]

【課題を解決するための手段】そこで、本発明によれ
ば、固定子外周面の電磁振動の変位が0、または0近辺
になる固定子外周面に、突起を設け、この突起を介して
固定子をブラケットに取り付けたことを特徴とする電動
機を提供する。
Therefore, according to the present invention, a protrusion is provided on the stator outer peripheral surface where the displacement of the electromagnetic vibration of the stator outer peripheral surface becomes zero or near zero, and the stator is fixed via the protrusion. An electric motor characterized in that a child is mounted on a bracket.

【0009】[0009]

【作用】固定子の外周面に設けられた突起を介して、固
定子をブラケットの内周部に収納し、固定することによ
り、固定子で発生する電磁振動をブラケットに伝達し難
くする。
The stator is housed in the inner peripheral portion of the bracket through the projection provided on the outer peripheral surface of the stator, and is fixed, thereby making it difficult to transmit the electromagnetic vibration generated by the stator to the bracket.

【0010】[0010]

【実施例】本発明における実施例を図1〜図4を用いて
説明する。図1は、本発明における固定子コアの正面図
である。図2は、本発明における固定子の正面図であ
る。図3は、固定子外周面の振動の変位を説明したグラ
フである。図4は、本発明における直流電動機の部分断
面図である。
An embodiment of the present invention will be described with reference to FIGS. FIG. 1 is a front view of a stator core according to the present invention. FIG. 2 is a front view of the stator according to the present invention. FIG. 3 is a graph illustrating the displacement of the vibration on the outer peripheral surface of the stator. FIG. 4 is a partial sectional view of the DC motor according to the present invention.

【0011】図1において、固定子コア1は、輪状のバ
ックヨーク2と、このバックヨーク2の内周部より軸心
に向かって延出したティース3とで構成され、また、バ
ックヨーク2の外周面には複数個の突起4が設けられて
いる。
In FIG. 1, a stator core 1 comprises a ring-shaped back yoke 2 and teeth 3 extending from the inner peripheral portion of the back yoke 2 toward the axis. A plurality of projections 4 are provided on the outer peripheral surface.

【0012】図2において、固定子5は、従来例で説明
した固定子と同様に、固定子コア1と、この固定子コア
1のティース3に巻回されたコイル6等により構成され
ている。
In FIG. 2, the stator 5 comprises a stator core 1, a coil 6 wound around teeth 3 of the stator core 1, and the like, similarly to the stator described in the conventional example. .

【0013】そして、コイル6に電源が供給されると、
磁界が発生して、固定子コア1内を通る磁束が発生す
る。そして、それぞれのコイルに流される電流の方向を
所定の順序で変更させていくことにより、回転子7を回
転させることができる。
When power is supplied to the coil 6,
A magnetic field is generated, and a magnetic flux passing through the stator core 1 is generated. By changing the direction of the current flowing through each coil in a predetermined order, the rotor 7 can be rotated.

【0014】また、コイル6に電源が供給され磁束が発
生すると、固定子5には、電磁振動が発生する。そし
て、前述したように、それぞれのコイル6に流れる電流
の向きを変化させることによって、つまり、ティース3
に発生する極(N極、S極)が変化することによって回
転子7を回転させている、したがって、固定子コア1の
外周面で測定される電磁振動の変位は、N極およびS極
が発生している箇所で振動の方向が反対となる。
When power is supplied to the coil 6 and a magnetic flux is generated, an electromagnetic vibration is generated in the stator 5. Then, as described above, by changing the direction of the current flowing through each coil 6, that is, the teeth 3
The rotor 7 is rotated by changing the poles (N-pole and S-pole) generated in the stator core. Therefore, the displacement of the electromagnetic vibration measured on the outer peripheral surface of the stator core 1 is expressed by The direction of the vibration is reversed at the place where it occurs.

【0015】図3は、コイル6に電源を供給して、電磁
振動を発生させ、固定子コア1外周面の任意の箇所の電
磁振動の変位を測定したグラフである。よって、この電
磁振動の変位が最小となる箇所に突起4を設ければ良
い。
FIG. 3 is a graph in which power is supplied to the coil 6 to generate electromagnetic vibration and the displacement of the electromagnetic vibration at an arbitrary position on the outer peripheral surface of the stator core 1 is measured. Therefore, the protrusion 4 may be provided at a position where the displacement of the electromagnetic vibration is minimized.

【0016】図4において、直流電動機8は、外周に突
起4が設けられた固定子5と、この固定子5の内周部に
収納され、回転自在に取り付けられた回転子7と、固定
子5外周面の突起4を、筒状に形成された内周面に圧
入、または接着されたブラケット9等により構成されて
いる。
Referring to FIG. 4, a DC motor 8 includes a stator 5 having a projection 4 on the outer periphery, a rotor 7 housed in the inner periphery of the stator 5 and rotatably mounted, and a stator 7. 5 The projection 4 on the outer peripheral surface is constituted by a bracket 9 or the like which is press-fitted or adhered to the inner peripheral surface formed in a cylindrical shape.

【0017】このよう突起4を設けることにより、固定
子コア1の外周面の電磁振動の変位が最小の箇所で固定
子5がブラケット9に取り付けられているため、ブラケ
ット9に伝達されるこの電磁振動を最小限に抑えること
ができる。
By providing the projections 4, the stator 5 is mounted on the bracket 9 at the position where the displacement of the electromagnetic vibration on the outer peripheral surface of the stator core 1 is minimum. Vibration can be minimized.

【0018】[0018]

【発明の効果】本発明によれば、固定子より発生した電
磁振動がブラッケットに伝達される際の電磁振動の伝達
量を減少させることができる。
According to the present invention, the amount of electromagnetic vibration generated when the electromagnetic vibration generated from the stator is transmitted to the bracket can be reduced.

【0019】[0019]

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

【図1】本発明における固定子コアの正面図。FIG. 1 is a front view of a stator core according to the present invention.

【図2】本発明における固定子の正面図。FIG. 2 is a front view of a stator according to the present invention.

【図3】固定子外周面の振動の変位を説明したグラフ。FIG. 3 is a graph illustrating a displacement of vibration on an outer peripheral surface of a stator.

【図4】本発明における直流電動機の部分断面図。FIG. 4 is a partial sectional view of a DC motor according to the present invention.

【図5】従来における直流電動機の部分断面図。FIG. 5 is a partial sectional view of a conventional DC motor.

【符号の説明】 1、17…固定子コア 2、15…バックヨーク 3、16…ティース 4…突起 5、12…固定子 6、18…コイル 7、13…回転子 8、11…直流電動機 9、14…ブラケット 19…絶縁材 20…シャフト 21…ヨーク 22…永久磁石[Description of Signs] 1, 17 ... Stator core 2, 15 ... Back yoke 3, 16 ... Teeth 4 ... Projection 5, 12 ... Stator 6, 18 ... Coil 7, 13 ... Rotor 8, 11 ... DC motor 9 , 14 ... bracket 19 ... insulating material 20 ... shaft 21 ... yoke 22 ... permanent magnet

Claims (1)

【特許請求の範囲】[Claims] 【請求項1】鋼板製のブラケット内に収納される固定子
を有する電動機において、 固定子外周面の電磁振動の変位が0、または0近辺にな
る固定子外周面に、突起を設け、この突起を介して固定
子をブラケットに取り付けたことを特徴とする電動機。
An electric motor having a stator housed in a bracket made of steel plate, wherein a projection is provided on an outer peripheral surface of the stator where the displacement of electromagnetic vibration on the outer peripheral surface of the stator is zero or near zero. An electric motor characterized in that a stator is attached to a bracket via a bracket.
JP11439997A 1997-04-15 1997-04-15 Motor Pending JPH10295050A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11439997A JPH10295050A (en) 1997-04-15 1997-04-15 Motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11439997A JPH10295050A (en) 1997-04-15 1997-04-15 Motor

Publications (1)

Publication Number Publication Date
JPH10295050A true JPH10295050A (en) 1998-11-04

Family

ID=14636716

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11439997A Pending JPH10295050A (en) 1997-04-15 1997-04-15 Motor

Country Status (1)

Country Link
JP (1) JPH10295050A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005011084A1 (en) * 2003-06-26 2005-02-03 Robert Bosch Gmbh Device, in particular electrical machine, comprising components mutually connected via an interference fit
JP2005269803A (en) * 2004-03-19 2005-09-29 Mitsubishi Electric Corp Permanent-magnetic motor
JP2011010548A (en) * 2003-09-04 2011-01-13 Mitsubishi Electric Corp Method of manufacturing permanent magnet synchronous motor
WO2019038921A1 (en) * 2017-08-25 2019-02-28 三菱重工エンジン&ターボチャージャ株式会社 Motor assembling method, centering jig, and electric motor

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005011084A1 (en) * 2003-06-26 2005-02-03 Robert Bosch Gmbh Device, in particular electrical machine, comprising components mutually connected via an interference fit
JP2011010548A (en) * 2003-09-04 2011-01-13 Mitsubishi Electric Corp Method of manufacturing permanent magnet synchronous motor
JP4744295B2 (en) * 2003-09-04 2011-08-10 三菱電機株式会社 Permanent magnet type synchronous motor and manufacturing method thereof
US8601671B2 (en) 2003-09-04 2013-12-10 Mitsubishi Denki Kabushiki Kaisha Method of manufacturing permanent-magnet synchronous motor
DE112004003151B4 (en) * 2003-09-04 2018-11-08 Mitsubishi Denki K.K. Method for producing a permanent magnet synchronous motor
JP2005269803A (en) * 2004-03-19 2005-09-29 Mitsubishi Electric Corp Permanent-magnetic motor
JP4566590B2 (en) * 2004-03-19 2010-10-20 三菱電機株式会社 Permanent magnet type motor
WO2019038921A1 (en) * 2017-08-25 2019-02-28 三菱重工エンジン&ターボチャージャ株式会社 Motor assembling method, centering jig, and electric motor
CN110800197A (en) * 2017-08-25 2020-02-14 三菱重工发动机和增压器株式会社 Motor assembling method, centering jig, and electric motor
JPWO2019038921A1 (en) * 2017-08-25 2020-03-26 三菱重工エンジン&ターボチャージャ株式会社 Motor assembling method, centering jig, and electric motor
CN110800197B (en) * 2017-08-25 2021-11-09 三菱重工发动机和增压器株式会社 Motor assembling method, centering jig, and electric motor
US11418095B2 (en) 2017-08-25 2022-08-16 Mitsubishi Heavy Industries Engine & Turbocharger, Ltd. Motor assembling method, centering jig, and electric motor

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