JPH1141862A - Drive motor - Google Patents

Drive motor

Info

Publication number
JPH1141862A
JPH1141862A JP9195378A JP19537897A JPH1141862A JP H1141862 A JPH1141862 A JP H1141862A JP 9195378 A JP9195378 A JP 9195378A JP 19537897 A JP19537897 A JP 19537897A JP H1141862 A JPH1141862 A JP H1141862A
Authority
JP
Japan
Prior art keywords
motor
pump
drive motor
cooling
coolant
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
JP9195378A
Other languages
Japanese (ja)
Inventor
Hiroyuki Ata
寛幸 阿多
Original Assignee
Matsushita Electric Ind Co Ltd
松下電器産業株式会社
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 Ind Co Ltd, 松下電器産業株式会社 filed Critical Matsushita Electric Ind Co Ltd
Priority to JP9195378A priority Critical patent/JPH1141862A/en
Publication of JPH1141862A publication Critical patent/JPH1141862A/en
Pending legal-status Critical Current

Links

Classifications

    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/60Other road transportation technologies with climate change mitigation effect
    • Y02T10/64Electric machine technologies in electromobility

Abstract

PROBLEM TO BE SOLVED: To obtain a drive motor which can be simplified and which can be made at low cost, by a method wherein the drive motor is used to run a pump for a cooling system. SOLUTION: In a drive motor 1, a recessed part is formed at the end of a shaft 6, a pump 2 for coolant circulation is arranged and installed at the end of the shaft 6, a permanent magnet is arranged and installed on the inner circumferential side of an upper part, and a magnetized pump rotor with which the pump 2 for coolant circulation is equipped is arranged and installed at the recessed part. A coolant is filled from the upper part of a coolant entrance 2 in the upper part of an impeller, and the coolant is circulated in a coolant passage 5 so as to be sent to a coolant exit 4. By this constitution, since the pump 2 for coolant circulation is driven by using the rotation of the drive motor 1, it is possible to obtain the drive motor 1 whose constitution is simple, which is made at low cost and which saves a space. Consequently, the power for the pump 2 is constituted by using the motor. The drive motor 1 can be simplified, and it can be made at low cost.

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】本発明は電動機の固定子の内
部や電動機外皮の内部等に冷却液路を設けた構造の電気
自動車駆動用電動機と冷却液循環用ポンプとを一体化し
た電動機であり、前記ポンプの動力は前記電気自動車駆
動用電動機の動力を利用することを特徴とする電動機に
関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electric motor in which an electric motor for driving an electric vehicle having a structure in which a cooling liquid passage is provided inside a stator of an electric motor or inside an outer cover of the electric motor, and a pump for circulating a cooling liquid. The present invention relates to an electric motor, wherein the power of the pump utilizes the power of the electric motor for driving the electric vehicle.
【0002】[0002]
【従来の技術】近年、環境保全問題や省エネルギー問題
の観点から電気自動車が注目されている。
2. Description of the Related Art In recent years, electric vehicles have attracted attention from the viewpoint of environmental conservation and energy saving.
【0003】一般的に電気自動車の駆動用電動機(以
下、電動機と称す)はエンジンと同等程度の出力が必要
とされる。電気自動車に数十から数百ボルトの電池を搭
載して電動機制御装置を介して上記電池より電動機に数
十から数百アンペアの電流を流す。また、電動機は車載
性をよくしたり走行効率を高くするためにより小型、軽
量であることが望まれる。電動機に大電流を流すために
上記電動機の発熱は大きく、また、より小型化すると電
動機の放熱面積も小さくなるので抜熱が困難となる。電
動機の温度が上昇すると電動機は本来の性能を発揮でき
なくなりいずれ破壊に至る。つまり電動機の発熱のため
に電気自動車の駆動可能時間あるいは電動機の出力に制
約を受ける。このために電気自動車はラジエータで冷却
された冷却液をポンプを用いて循環する冷却システムを
構成していることが一般的である。
Generally, an electric motor for driving an electric vehicle (hereinafter, referred to as an electric motor) requires an output equivalent to that of an engine. A battery of several tens to several hundreds of volts is mounted on an electric vehicle, and a current of several tens to several hundreds of amps flows from the battery to the motor via the motor control device. In addition, it is desired that the electric motor be smaller and lighter in order to improve the in-vehicle property and the running efficiency. Since a large current flows through the motor, the motor generates a large amount of heat. Further, when the motor is downsized, the heat dissipation area of the motor is reduced, so that it is difficult to remove the heat. When the temperature of the motor rises, the motor cannot exhibit its original performance and eventually breaks down. That is, heat generation of the electric motor limits the drivable time of the electric vehicle or the output of the electric motor. For this reason, electric vehicles generally have a cooling system that circulates a cooling liquid cooled by a radiator using a pump.
【0004】[0004]
【発明が解決しようとする課題】電動機においては電動
機固定子の内部や電動機外皮の内部等に冷却液路を設け
て上記冷却ポンプで冷却液を循環しているのが一般的で
ある。しかし、敢えてポンプを使用して冷却液を循環す
る必要性はなく、また、ポンプを用いるとそれだけ冷却
システムが複雑になり、高コストとなる。
Generally, in a motor, a cooling liquid path is provided inside a motor stator or inside a motor outer casing, and the cooling liquid is circulated by the cooling pump. However, there is no need to use a pump to circulate the coolant, and the use of a pump complicates the cooling system and increases the cost.
【0005】[0005]
【課題を解決するための手段】本願駆動用電動機は駆動
用電動機本体と、この駆動用電動機本体に冷却液を循環
する冷却システムとを備え、この冷却システムのポンプ
の動力は前記駆動用電動機本体の動力を用いた構成であ
り、冷却システムの動力を駆動用電動機本体の駆動を併
用しているので、駆動用電動機の簡略化、低コスト化が
図れる。
The drive motor of the present invention includes a drive motor body and a cooling system for circulating a coolant through the drive motor body, and the power of a pump of the cooling system is controlled by the drive motor body. Since the power of the cooling system is used in combination with the driving of the driving motor body, the driving motor can be simplified and the cost can be reduced.
【0006】[0006]
【発明の実施の形態】本願発明の駆動用電動機は、駆動
用電動機本体と、この駆動用電動機本体に冷却液を循環
する冷却システムとを備え、この冷却システムのポンプ
の動力は前記駆動用電動機本体の動力を用いた構成であ
り、冷却システムの動力を駆動用電動機本体の駆動を併
用しているので、冷却システムの電動機を別に設ける必
要もなく、駆動用電動機の簡略化、低コスト化が図れ
る。
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A drive motor according to the present invention includes a drive motor body and a cooling system for circulating a coolant through the drive motor body. The power of a pump of the cooling system is controlled by the drive motor. The structure uses the power of the main body, and the power of the cooling system is used in combination with the driving of the driving motor.Therefore, there is no need to provide a separate motor for the cooling system, and the driving motor can be simplified and reduced in cost. I can do it.
【0007】更に、冷却システムのポンプの回転子を電
動機本体の回転軸に設け、前記回転子と前記回転軸とは
磁気を介して、前記回転軸の回転を前記回転子に伝達す
るので、回転軸の回転に従い、磁気を介して回転子が回
転し、冷却システムのポンプが駆動する。この時、回転
子と回転軸の間には冷却システムのカバーを介してお
り、冷却システムの冷却液が漏れることがない。
Further, the rotor of the pump of the cooling system is provided on the rotating shaft of the motor body, and the rotor and the rotating shaft transmit the rotation of the rotating shaft to the rotor via magnetism. As the shaft rotates, the rotor rotates via magnetism and drives the pump of the cooling system. At this time, the cooling system cover is interposed between the rotor and the rotating shaft, so that the cooling liquid of the cooling system does not leak.
【0008】更に、内周側に磁石を配設した凹部を回転
軸の端部に設け、この凹部に磁気性を帯びた回転子を配
置してもよい。
Further, a concave portion provided with a magnet on the inner peripheral side may be provided at the end of the rotating shaft, and a magnetic rotor may be disposed in the concave portion.
【0009】更に、冷却システムのポンプの羽根車を回
転軸に直接配設するので、簡単な構成になる。
Furthermore, since the impeller of the pump of the cooling system is directly disposed on the rotating shaft, the structure is simple.
【0010】また、本願発明の電気自動車駆動用電動機
は電気自動車駆動用電動機本体と、この電気自動車駆動
用電動機本体に冷却液を循環する冷却システムとを備
え、この冷却システムのポンプの動力は前記電気自動車
駆動用電動機本体の動力を用いた構成であり、冷却シス
テムの電動機を別に設ける必要もなく、駆動用電動機の
簡略化、低コスト化が図れる。
The electric motor for driving an electric vehicle according to the present invention includes a motor main body for driving an electric vehicle, and a cooling system for circulating a coolant through the motor main body for driving the electric vehicle. Since the configuration uses the power of the electric motor for driving the electric vehicle, there is no need to separately provide a motor for the cooling system, and the driving motor can be simplified and the cost can be reduced.
【0011】[0011]
【実施例】図1,図2に示すように本願実施例の電動機
1は回転軸6の端部に凹部を設け、この回転軸6の端部
に冷却液循環用ポンプ2を配設した構成である。凹部の
内周側面には永久磁石8を配設し、冷却液循環用ポンプ
2が有する着磁をしたポンプ回転子10を凹部に配設し
た構成であり、電動機を駆動すると、回転軸6が回転
し、永久磁石8が発生する磁気に従い、ポンプ回転子1
0も回転する。この時、回転軸6とポンプ回転子10の
間には下カバー9を介しており、この下カバー9は電動
機1のブラケット7に取り付けて、回転軸端部を覆うよ
うな構成をしている。
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS As shown in FIGS. 1 and 2, an electric motor 1 according to an embodiment of the present invention has a structure in which a concave portion is provided at an end of a rotating shaft 6, and a cooling liquid circulation pump 2 is provided at the end of the rotating shaft 6. It is. A permanent magnet 8 is disposed on the inner peripheral side surface of the concave portion, and a magnetized pump rotor 10 of the cooling liquid circulation pump 2 is disposed in the concave portion. When the electric motor is driven, the rotating shaft 6 The pump rotor 1 rotates according to the magnetism generated by the rotation of the permanent magnet 8.
Zero also rotates. At this time, a lower cover 9 is interposed between the rotary shaft 6 and the pump rotor 10, and the lower cover 9 is attached to the bracket 7 of the electric motor 1 so as to cover an end of the rotary shaft. .
【0012】更に、ポンプ回転子10の上部に羽根車1
1を配置し、その上に上カバー12を取り付ける。
Further, an impeller 1 is provided above the pump rotor 10.
1 and the upper cover 12 is mounted thereon.
【0013】羽根車11の上部の冷却液入口3の上部か
ら冷却液を入れ、この冷却液を冷却液路5を巡回させ、
冷却液出口4へ送る。このような構成により、従来の駆
動用電動機は冷却ポンプの電動機を別に持つ必要があっ
たが、本願実施例では、駆動用電動機の回転を利用して
冷却ポンプを駆動しているので、簡略な構成、低コス
ト、省スペースの駆動用電動機を提供することができ
る。特に、電気自動車の駆動用電動機のように、省スペ
ース且つ冷却を必要とする駆動用電動機に用いることは
適している。
A coolant is introduced from above the coolant inlet 3 above the impeller 11, and the coolant is circulated through the coolant passage 5,
Send to the coolant outlet 4. With such a configuration, the conventional drive motor needs to have a separate motor for the cooling pump, but in the present embodiment, the cooling pump is driven by using the rotation of the drive motor, so that it is simplified. It is possible to provide a driving motor having a configuration, low cost, and space saving. In particular, it is suitable to be used for a drive motor requiring space saving and cooling, such as a drive motor for an electric vehicle.
【0014】上記構成では、電動機1と冷却液潤滑用ポ
ンプ2を下カバー9により分離した構成であり、冷却液
が電動機1内部に漏れるような構成ではない。
In the above configuration, the motor 1 and the coolant lubrication pump 2 are separated by the lower cover 9, and there is no configuration in which the coolant leaks into the motor 1.
【0015】なお、図3のように回転軸6と羽根車11
を直接取り付け、オイルシート13を羽根車11と回転
軸6との間に配置した構造にし、更に簡易な構成として
よい。
As shown in FIG. 3, the rotating shaft 6 and the impeller 11
May be directly attached, and the oil sheet 13 may be arranged between the impeller 11 and the rotating shaft 6 to provide a simpler configuration.
【0016】[0016]
【発明の効果】本願請求項1,5記載の発明は、ポンプ
の動力は電動機の動力を利用した構成であり、駆動用電
動機の簡略化、低コスト化を図ることができる。
According to the first and fifth aspects of the present invention, the power of the pump uses the power of the electric motor, so that the driving electric motor can be simplified and the cost can be reduced.
【0017】更に、請求項2,3記載の発明は、磁気を
利用して回転軸の駆動を回転子に伝達するので、ポンプ
と電動機本体とを分離し、冷却液が電動機本体に漏れる
ことはない。
Further, according to the second and third aspects of the present invention, since the drive of the rotating shaft is transmitted to the rotor using magnetism, the pump and the motor body are separated from each other, so that the coolant does not leak to the motor body. Absent.
【0018】更に、請求項4記載の発明は、回転軸に直
接羽根車を設けるので、更に簡単な構成の駆動用電動機
を提供することができる。
Further, according to the fourth aspect of the present invention, since the impeller is provided directly on the rotating shaft, it is possible to provide a driving motor having a simpler structure.
【図面の簡単な説明】[Brief description of the drawings]
【図1】本発明の実施例を示す駆動用電動機の断面図FIG. 1 is a sectional view of a driving motor according to an embodiment of the present invention.
【図2】同要部断面図FIG. 2 is a sectional view of an essential part of the same.
【図3】同他の実施例を示す駆動用電動機の断面図FIG. 3 is a sectional view of a driving motor according to another embodiment.
【符号の説明】[Explanation of symbols]
1 電動機 2 冷却循環用ポンプ 3 冷却入口 4 冷却出口 5 冷却液路 6 回転軸 7 ブラケット 8 永久磁石 9 下カバー 10 ポンプ回転子 11 羽根車 12 上カバー DESCRIPTION OF SYMBOLS 1 Electric motor 2 Pump for cooling circulation 3 Cooling inlet 4 Cooling outlet 5 Cooling fluid path 6 Rotating shaft 7 Bracket 8 Permanent magnet 9 Lower cover 10 Pump rotor 11 Impeller 12 Upper cover

Claims (5)

    【特許請求の範囲】[Claims]
  1. 【請求項1】駆動用電動機本体と、この駆動用電動機本
    体に冷却液を循環する冷却システムとを備え、この冷却
    システムのポンプの動力は前記駆動用電動機本体の動力
    を用いた駆動用電動機。
    1. A drive motor comprising: a drive motor main body; and a cooling system for circulating a coolant through the drive motor main body, wherein a power of a pump of the cooling system uses the power of the drive motor main body.
  2. 【請求項2】冷却システムのポンプの回転子を電動機本
    体の回転軸に設け、前記回転子と前記回転軸とは磁気を
    介して、前記回転軸の回転を前記回転子に伝達する請求
    項1記載の駆動用電動機。
    2. The cooling system according to claim 1, wherein a rotor of the pump is provided on a rotating shaft of the motor body, and the rotating shaft and the rotating shaft transmit rotation of the rotating shaft to the rotor via magnetism. The driving motor as described in the above.
  3. 【請求項3】内周側に磁石を配設した凹部を回転軸の端
    部に設け、前記凹部に磁気性を帯びた回転子を配置した
    請求項2記載の駆動用電動機。
    3. The drive motor according to claim 2, wherein a concave portion having a magnet disposed on an inner peripheral side is provided at an end of the rotating shaft, and a magnetic rotor is disposed in the concave portion.
  4. 【請求項4】冷却システムのポンプの羽根車を回転軸に
    直接配設した請求項1記載の駆動用電動機。
    4. The drive motor according to claim 1, wherein the impeller of the pump of the cooling system is directly disposed on the rotating shaft.
  5. 【請求項5】電気自動車駆動用電動機本体と、この電気
    自動車駆動用電動機本体に冷却液を循環する冷却システ
    ムとを備え、この冷却システムのポンプの動力は前記電
    気自動車駆動用電動機本体の動力を用いた電気自動車駆
    動用電動機。
    5. An electric motor for driving an electric vehicle, and a cooling system for circulating a coolant through the electric motor for driving the electric vehicle. The power of the pump of the cooling system is the power of the electric motor for driving the electric vehicle. The electric motor for driving the electric vehicle used.
JP9195378A 1997-07-22 1997-07-22 Drive motor Pending JPH1141862A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9195378A JPH1141862A (en) 1997-07-22 1997-07-22 Drive motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9195378A JPH1141862A (en) 1997-07-22 1997-07-22 Drive motor

Publications (1)

Publication Number Publication Date
JPH1141862A true JPH1141862A (en) 1999-02-12

Family

ID=16340181

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9195378A Pending JPH1141862A (en) 1997-07-22 1997-07-22 Drive motor

Country Status (1)

Country Link
JP (1) JPH1141862A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003047202A (en) * 2001-07-31 2003-02-14 Honda Motor Co Ltd Cooling device for vehicle
JP2006101672A (en) * 2004-09-30 2006-04-13 Hitachi Industrial Equipment Systems Co Ltd Rotating machine containing fluid flow path
WO2007019939A1 (en) * 2005-08-12 2007-02-22 Wilo Ag Coolant pump for electric motors
JP2007049850A (en) * 2005-08-11 2007-02-22 Toshiba Corp Liquid-cooled rotary electric machine
WO2013113006A1 (en) * 2012-01-27 2013-08-01 Remy Technologies, Llc Electric machine cooling

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003047202A (en) * 2001-07-31 2003-02-14 Honda Motor Co Ltd Cooling device for vehicle
JP4625597B2 (en) * 2001-07-31 2011-02-02 本田技研工業株式会社 Vehicle cooling system
JP2006101672A (en) * 2004-09-30 2006-04-13 Hitachi Industrial Equipment Systems Co Ltd Rotating machine containing fluid flow path
JP2007049850A (en) * 2005-08-11 2007-02-22 Toshiba Corp Liquid-cooled rotary electric machine
JP4711776B2 (en) * 2005-08-11 2011-06-29 株式会社東芝 Liquid-cooled rotary electric machine
WO2007019939A1 (en) * 2005-08-12 2007-02-22 Wilo Ag Coolant pump for electric motors
WO2013113006A1 (en) * 2012-01-27 2013-08-01 Remy Technologies, Llc Electric machine cooling
US9197115B2 (en) 2012-01-27 2015-11-24 Remy Technologies, Llc Electric machine cooling

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