JP2005075006A - Embedded magnet type synchronous motor of brake integral structure - Google Patents

Embedded magnet type synchronous motor of brake integral structure Download PDF

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Publication number
JP2005075006A
JP2005075006A JP2003209545A JP2003209545A JP2005075006A JP 2005075006 A JP2005075006 A JP 2005075006A JP 2003209545 A JP2003209545 A JP 2003209545A JP 2003209545 A JP2003209545 A JP 2003209545A JP 2005075006 A JP2005075006 A JP 2005075006A
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JP
Japan
Prior art keywords
motor
tire
driving
wheel
gear
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
JP2003209545A
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Japanese (ja)
Inventor
Atsushi Nagato
温 長戸
Yoshihiro Okamoto
吉弘 岡本
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.)
Toyo Electric Manufacturing Ltd
Original Assignee
Toyo Electric Manufacturing 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 Toyo Electric Manufacturing Ltd filed Critical Toyo Electric Manufacturing Ltd
Priority to JP2003209545A priority Critical patent/JP2005075006A/en
Publication of JP2005075006A publication Critical patent/JP2005075006A/en
Pending legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L15/00—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles
    • B60L15/20—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles for control of the vehicle or its driving motor to achieve a desired performance, e.g. speed, torque, programmed variation of speed
    • B60L15/2009—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles for control of the vehicle or its driving motor to achieve a desired performance, e.g. speed, torque, programmed variation of speed for braking
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2220/00—Electrical machine types; Structures or applications thereof
    • B60L2220/10—Electrical machine types
    • B60L2220/14—Synchronous machines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2220/00—Electrical machine types; Structures or applications thereof
    • B60L2220/40—Electrical machine applications
    • B60L2220/44—Wheel Hub motors, i.e. integrated in the wheel hub
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2240/00—Control parameters of input or output; Target parameters
    • B60L2240/40—Drive Train control parameters
    • B60L2240/42—Drive Train control parameters related to electric machines
    • B60L2240/423—Torque
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/64—Electric machine technologies in electromobility
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/72—Electric energy management in electromobility

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)
  • Motor Power Transmission Devices (AREA)
  • Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)
  • Braking Arrangements (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To drive a tire without interposing a speed reduction gear such as a transmission, a differential gear or a planetary gear, etc., in an electric vehicle making driving efficiency bad since loss in a power transmission system such as the differential gear is large in a system for driving the tire via a motor, the transmission and the differential gear, making driving efficiency bad since loss in a driving system is large in a wheel-in-motor system for directly driving the tire by combining the speed reduction gear such as the planetary gear and the motor, and having an advantage of no loss in the power transmission system since the motor is a driving wheel itself, in the case of a wheel-in-motor for directly driving the tire by incorporating a driving machine between an axle and the tire. <P>SOLUTION: This motor is made to have a shaftless outer rotor structure in which a rotor housing and a brake drum are made to have an integral structure and are fixed to the axle together with a stator housing incorporated with a brake unit. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

【０００１】
【発明の属する技術分野】
本発明は、電動機により走行運転される電気自動車における駆動電動機に関する。
【０００２】
【従来の技術】
従来の電気自動車においては、電動機１台でトランスミッション、デファレンシャルギヤを介してトルクを配分してタイヤを駆動する方式、電動機の出力を遊星ギヤ等の減速ギヤを介してタイヤを駆動するホイールインモータ方式がある。（例えば、非特許文献１参照）
【非特許文献１】
株式会社 明電舎「明電時報 ２００１年Ｎｏ．３」ｐ１１第２図
【０００３】
【発明が解決しようとする課題】
従来の電気自動車にあっては、電動機１台でトランスミッション、デファレンシャルギヤを介してトルクを分配してタイヤを駆動する方式では、デファレンシャルギヤ等の動力伝達系での損失が大きく駆動効率を悪くしている。また、遊星ギヤ等の減速ギヤと電動機を組合せタイヤを直接駆動するホイールインモータ方式も駆動効率を悪くする駆動系の損失が存在する。
アクスルとタイヤ間に電動機を組込みタイヤを直接駆動するホイールインモータの場合は、電動機が駆動輪そのものであるので動力伝達系の損失がない利点がある。
【０００４】
本発明は、電気自動車において、トランスミッション、デファレンシャルギヤ、または遊星ギヤ等の減速ギヤを介することなく、タイヤを駆動することを目的としている。
【０００５】
【課題を解決するための手段】
上記目的を達成するために、本発明の駆動電動機においては、ローターハウジングとブレーキドラムを一体構造として、ブレーキユニットを組込んだステ−ターハウジングと共にアクスルに固定した、シャフトレスアウターローター構造の電動機とすることである。
【０００６】
【発明の実施の形態】
発明の実施の形態を実施例にもとづいて図面を参照して説明する。
図１において、ブレーキユニット１およびブレーキシュー２が組込まれた、固定子ハウジング３に固定子４が組込まれている。固定子ハウジング３はアクスル（固定側）５に取付けられている。
尚、固定子ハウジング３はブレーキユニット組込み部分とモーター固定子部を分割して、ボルト等により締結する方法で構成してもよい。
さらに、回転子６が組込まれたブレーキドラムと一体並列構造の回転子ハウジング７が、アクスル（回転側）８に固定されている。尚、ブレーキドラムと一体並列構造の回転子ハウジング７はモーター回転子部とブレーキドラム部を分割して、ボルト等により締結する方法で構成してもよい。
アクスル（回転側）８にはタイヤホイール９が組込まれる。
固定子ハウジング３と回転子ハウジング７とのすきまにオイルシール１０を挿入している。
【０００７】
【発明の効果】
本発明は、上記説明したように構成されているので、以下に記載されるような効果を奏する。
【０００８】
タイヤホイール内に電動機が構成されるので、トランスミッション、デファレンシャルギヤ、または遊星ギヤを介することなくタイヤを駆動することができる。
【図面の簡単な説明】
【図１】ブレーキ一体並列型の埋込磁石型同期電動機の実施を示す縦断面図である。
【符号の説明】
１ ブレーキユニット
２ ブレーキシュー
３ 固定子ハウジング
４ 固定子
５ アクスル（固定側）
６ 回転子
７ 回転子ハウジング
８ アクスル（回転側）
９ タイヤホイール
１０ オイルシール[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a drive motor in an electric vehicle that is driven by an electric motor.
[0002]
[Prior art]
In a conventional electric vehicle, a motor is used to drive a tire by distributing torque through a transmission and a differential gear, and a wheel-in motor system in which the output of the motor is driven through a reduction gear such as a planetary gear. There is. (For example, see Non-Patent Document 1)
[Non-Patent Document 1]
Meidensha Co., Ltd. “Meiden Time Report 2001 No.3” p11 Figure 2
[Problems to be solved by the invention]
In a conventional electric vehicle, in a method of driving a tire by distributing torque with a single motor via a transmission and a differential gear, a loss in a power transmission system such as a differential gear is large and driving efficiency is deteriorated. Yes. In addition, a wheel-in motor system in which a reduction gear such as a planetary gear is combined with an electric motor to directly drive a tire also has a drive system loss that degrades drive efficiency.
In the case of a wheel-in motor that directly drives a tire by incorporating an electric motor between the axle and the tire, there is an advantage that there is no loss of the power transmission system because the electric motor is the drive wheel itself.
[0004]
An object of the present invention is to drive a tire in an electric vehicle without using a reduction gear such as a transmission, a differential gear, or a planetary gear.
[0005]
[Means for Solving the Problems]
In order to achieve the above object, in the drive motor of the present invention, a motor having a shaftless outer rotor structure in which a rotor housing and a brake drum are integrally structured and fixed to an axle together with a stator housing incorporating a brake unit; It is to be.
[0006]
DETAILED DESCRIPTION OF THE INVENTION
DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described based on examples with reference to the drawings.
In FIG. 1, a stator 4 is incorporated in a stator housing 3 in which a brake unit 1 and a brake shoe 2 are incorporated. The stator housing 3 is attached to an axle (fixed side) 5.
The stator housing 3 may be constituted by a method in which the brake unit built-in part and the motor stator part are divided and fastened with bolts or the like.
Further, a rotor housing 7 having an integral parallel structure with a brake drum in which the rotor 6 is incorporated is fixed to an axle (rotation side) 8. Note that the rotor housing 7 integrally and parallel to the brake drum may be configured by dividing the motor rotor portion and the brake drum portion and fastening them with bolts or the like.
A tire wheel 9 is incorporated in the axle (rotation side) 8.
An oil seal 10 is inserted in the gap between the stator housing 3 and the rotor housing 7.
[0007]
【The invention's effect】
Since the present invention is configured as described above, the following effects can be obtained.
[0008]
Since the electric motor is configured in the tire wheel, the tire can be driven without passing through the transmission, the differential gear, or the planetary gear.
[Brief description of the drawings]
FIG. 1 is a longitudinal sectional view showing an implementation of an embedded magnet type synchronous motor of a brake integrated parallel type.
[Explanation of symbols]
1 Brake unit 2 Brake shoe 3 Stator housing 4 Stator 5 Axle (fixed side)
6 Rotor 7 Rotor housing 8 Axle (rotating side)
9 Tire wheel 10 Oil seal

Claims (1)

ブレーキドラムの回転子ハウジングを一体構造として、ドラムブレーキを並列配置することを特徴とするアウターローター構造の埋込磁石型同期電動機。An embedded rotor type synchronous motor having an outer rotor structure, in which a rotor housing of a brake drum is integrated and a drum brake is arranged in parallel.
JP2003209545A 2003-08-29 2003-08-29 Embedded magnet type synchronous motor of brake integral structure Pending JP2005075006A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2003209545A JP2005075006A (en) 2003-08-29 2003-08-29 Embedded magnet type synchronous motor of brake integral structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2003209545A JP2005075006A (en) 2003-08-29 2003-08-29 Embedded magnet type synchronous motor of brake integral structure

Publications (1)

Publication Number Publication Date
JP2005075006A true JP2005075006A (en) 2005-03-24

Family

ID=34402436

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2003209545A Pending JP2005075006A (en) 2003-08-29 2003-08-29 Embedded magnet type synchronous motor of brake integral structure

Country Status (1)

Country Link
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008057552A (en) * 2006-08-29 2008-03-13 Honda Motor Co Ltd Brake structure for wheel rotating device
JP2008155694A (en) * 2006-12-21 2008-07-10 Honda Motor Co Ltd In-wheel motor
JP2013048551A (en) * 2006-07-13 2013-03-07 Protean Electric Ltd Electric motor

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013048551A (en) * 2006-07-13 2013-03-07 Protean Electric Ltd Electric motor
JP2008057552A (en) * 2006-08-29 2008-03-13 Honda Motor Co Ltd Brake structure for wheel rotating device
US7938211B2 (en) 2006-08-29 2011-05-10 Honda Motor Co., Ltd. Brake structure for wheel rotating device
US8596394B2 (en) 2006-08-29 2013-12-03 Honda Motor Co., Ltd. Brake structure for wheel rotating device
JP2008155694A (en) * 2006-12-21 2008-07-10 Honda Motor Co Ltd In-wheel motor

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