JPH0746054Y2 - Electric motor cooling device - Google Patents
Electric motor cooling deviceInfo
- Publication number
- JPH0746054Y2 JPH0746054Y2 JP8971590U JP8971590U JPH0746054Y2 JP H0746054 Y2 JPH0746054 Y2 JP H0746054Y2 JP 8971590 U JP8971590 U JP 8971590U JP 8971590 U JP8971590 U JP 8971590U JP H0746054 Y2 JPH0746054 Y2 JP H0746054Y2
- Authority
- JP
- Japan
- Prior art keywords
- drive motor
- duct
- cooling air
- cooling
- center
- 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.)
- Expired - Lifetime
Links
Landscapes
- Motor Or Generator Cooling System (AREA)
Description
【考案の詳細な説明】 ［産業上の利用分野］ 本考案は、電気自動車等の移動装置を駆動する駆動モー
タの冷却装置に関する。DETAILED DESCRIPTION OF THE INVENTION [Industrial application] The present invention relates to a cooling device for a drive motor for driving a moving device such as an electric vehicle.
［従来の技術］ 従来、電気自動車等の駆動モータの冷却装置は外部から
車速と同等の風速の冷却風を取り込んで駆動モータを冷
却している。例えば第４図に示すように、電気自動車の
進行方向に冷却風の吸気口11を備え、後方に冷却風の排
気口12を備えたダクト１のほぼ中央部に円筒形の駆動モ
ータ２を電気自動車の進行方向に対し直角方向に回転軸
21を向けて固定し、ダクト１の内側と駆動モータ２のフ
レームとの間に冷却風が通過する冷却通路13を形成して
ある。[Prior Art] Conventionally, a cooling device for a drive motor of an electric vehicle or the like cools the drive motor by taking in cooling air from the outside at a wind speed equal to the vehicle speed. For example, as shown in FIG. 4, a cylindrical drive motor 2 is installed in a substantially central portion of a duct 1 having an inlet 11 for cooling air in the traveling direction of an electric vehicle and an outlet 12 for cooling air in the rear. Rotation axis perpendicular to the traveling direction of the car
A cooling passage 13 is formed between the inside of the duct 1 and the frame of the drive motor 2 so that cooling air can pass therethrough.
［考案が解決しようとする課題］ ところが、駆動モータの側面に冷却風を当てた場合、駆
動モータの吸気口側の面では、流体のポテンシャルは高
く、冷却風は駆動モータの側面に沿って流れるが、駆動
モータの側面から吸気口側とは反対側の面に向かう流れ
では、次第に流れのポテンシャルが低下し、駆動モータ
の側面から吸気口側とは反対側の面に向かう途中で境界
層の剥離が起こり、第４図に示すように、渦Ａが発生す
る。したがって、渦Ａが発生する駆動モータの側面から
吸気口側とは反対側の面にかけては熱伝導が悪く、熱が
籠ってしまい、冷却風による冷却効率が低下する。[Problems to be solved by the invention] However, when cooling air is applied to the side surface of the drive motor, the potential of the fluid is high on the surface of the drive motor on the intake side, and the cooling air flows along the side surface of the drive motor. However, in the flow from the side surface of the drive motor to the surface on the side opposite to the intake port side, the potential of the flow gradually decreases, and the boundary layer on the way from the side surface of the drive motor to the surface on the side opposite to the intake port side. Separation occurs, and vortices A are generated as shown in FIG. Therefore, heat conduction is poor from the side surface of the drive motor in which the vortex A is generated to the surface opposite to the intake port side, heat is trapped, and the cooling efficiency by the cooling air is reduced.
本考案は、円筒体に形成された駆動モータの後方面に渦
が発生しないようにして冷却効率を高めることを目的と
するものである。An object of the present invention is to improve cooling efficiency by preventing generation of vortices on the rear surface of a drive motor formed in a cylindrical body.
［課題を解決するための手段］ 本考案は、移動装置の進行方向に向けて冷却風の吸気口
を備え、前記進行方向と逆方向に冷却風の排気口を備え
たダクトと、前記ダクトの内部の中央部に前記移動装置
の進行方向に対し直角方向に回転軸を向けて固定した円
筒形の駆動モータとを備えた電動機の冷却装置におい
て、前記駆動モータと前記排気口の間の前記ダクトの内
壁面に、前記駆動モータの前記吸気口側とは反対側の面
に対向する前記ダクトの内側面から、前記駆動モータの
側面に向かって滑らかな曲線を描くように形成された導
風フィンを設け、前記駆動モータの前記吸気口側とは反
対側の面側の冷却風のポテンシャルを高めるようにした
ものである。[Means for Solving the Problem] The present invention provides a duct having an inlet for cooling air in the traveling direction of a moving device and an outlet for cooling air in the opposite direction to the traveling direction, and a duct of the duct. A cooling device for an electric motor, comprising: a cylindrical drive motor having a rotary shaft fixed in a central portion of the inside thereof in a direction perpendicular to a traveling direction of the moving device, wherein the duct is provided between the drive motor and the exhaust port. Baffle fins formed on the inner wall surface of the drive motor so as to draw a smooth curve from the inner side surface of the duct facing the side opposite to the intake port side toward the side surface of the drive motor. Is provided to increase the potential of the cooling air on the surface side of the drive motor opposite to the intake port side.
また、前記吸気口の中心と前記駆動モータの中心とを結
ぶ線上より偏心した位置に冷却風の排気口の中心を備
え、前記駆動モータの背面に対向する前記ダクトの内側
面を前記吸気口の中心と前記駆動モータの中心とを結ぶ
線より片側に形成したものである。Further, the center of the cooling air exhaust port is provided at a position eccentric from the line connecting the center of the intake port and the center of the drive motor, and the inner surface of the duct facing the back surface of the drive motor is provided with the center of the intake port. It is formed on one side of a line connecting the center and the center of the drive motor.
また、前記吸気口に吸気ファンを、前記排気口に排気フ
ァンを取り付けたものである。An intake fan is attached to the intake port, and an exhaust fan is attached to the exhaust port.
［作用］ 吸気口から入った冷却風が円筒状の駆動モータの側面に
当たるように、駆動モータをダクトの中央部に配置し、
駆動モータの吸気口側とは反対側の面に対向するダクト
の内側面から駆動モータの側面に向かって滑らかな曲線
を描くように形成された導風フィンを設けてあるので、
駆動モータの側面から吸気口側とは反対側の面に迂回し
て流れる冷却風は、導風フィンによって駆動モータの側
面に押し付けられ、駆動モータの吸気口側とは反対側の
ポテンシャルが高められ、冷却風の渦の発生が妨げられ
る。[Operation] The drive motor is arranged at the center of the duct so that the cooling air entering from the intake port hits the side surface of the cylindrical drive motor,
Since the air guide fins are formed so as to draw a smooth curve from the inner surface of the duct facing the side opposite to the intake port side of the drive motor toward the side surface of the drive motor,
The cooling air that bypasses the side surface of the drive motor to the side opposite to the inlet side is pressed against the side surface of the drive motor by the air guide fins, and the potential on the side opposite the inlet side of the drive motor is increased. The generation of the vortex of the cooling air is hindered.
［実施例］ 本考案を図に示す実施例について説明する。[Embodiment] An embodiment of the present invention shown in the drawings will be described.
第１図は本考案の実施例を示す側断面図で、ダクト１の
ほぼ中央部に円筒形の駆動モータ２を電気自動車の進行
方向に対し直角方向に回転軸21を向けて固定し、ダクト
１の内側と駆動モータ２のフレーム22との間に破線で示
すような冷却風が通過する冷却通路13を形成してある。
フレーム22には電気自動車の進行方向、すなわち冷却風
の進行方向に対し平行に複数個の冷却フィン23が設けら
れ、冷却風の整流作用をするように通風ジャケットを形
成している。電気自動車の進行方向には冷却風の吸気口
11を備え、吸気口11には吸入ファン３を取付け、ダクト
１内の空気圧力が高くなるようにしてある。駆動モータ
２の吸気口11と対向する面と反対側の面、すなわち駆動
モータ２の背面の方向には、吸気口11の中心と駆動モー
タ２の中心とを結ぶ線より偏心した位置に冷却風の排気
口12の中心を備え、排気口12には排気ファン４を取り付
けてある。したがって、駆動モータ２の上方の側面を流
れる冷却風の冷却通路13は比較的直線状になり、下方の
側面を流れる冷却通路13は、駆動モータ２の側面から背
面にわたって、ダクト１の内側面に沿って迂回して形成
される。この迂回して形成された冷却通路13に面するダ
クト１の内側面に、複数の導風フィン５を設けてある。FIG. 1 is a side cross-sectional view showing an embodiment of the present invention, in which a cylindrical drive motor 2 is fixed to a substantially central portion of a duct 1 with a rotary shaft 21 oriented at right angles to a traveling direction of an electric vehicle. A cooling passage 13 through which cooling air passes as shown by a broken line is formed between the inner side of 1 and the frame 22 of the drive motor 2.
A plurality of cooling fins 23 are provided in the frame 22 in parallel to the traveling direction of the electric vehicle, that is, the traveling direction of the cooling air, and a ventilation jacket is formed so as to rectify the cooling air. Cooling air intake in the direction of travel of electric vehicles
An intake fan 3 is attached to the intake port 11 to increase the air pressure in the duct 1. In the surface opposite to the surface of the drive motor 2 facing the intake port 11, that is, in the direction of the back surface of the drive motor 2, the cooling air is eccentric to the line connecting the center of the intake port 11 and the center of the drive motor 2. The exhaust fan 12 is attached to the center of the exhaust port 12. Therefore, the cooling passage 13 for the cooling air flowing on the upper side surface of the drive motor 2 becomes relatively straight, and the cooling passage 13 on the lower side surface extends from the side surface of the drive motor 2 to the rear surface to the inner surface of the duct 1. It is formed by detouring along. A plurality of air guide fins 5 are provided on the inner side surface of the duct 1 facing the cooling passage 13 formed by bypassing.
導風フィン５はダクト１の内側面側から駆動モータ２の
背面に向かって滑らかな曲線を描くようにエンジニアプ
ラスチックスなどにより形成され、ダクト１の内側面に
沿って流れる冷却風が大きな抵抗を受けることなく、駆
動モータ２の背面に回るようにしてある。The air guide fins 5 are formed of engineer plastics or the like so as to draw a smooth curve from the inner surface side of the duct 1 toward the back surface of the drive motor 2, and the cooling air flowing along the inner surface of the duct 1 has a large resistance. It is adapted to rotate around the back surface of the drive motor 2 without receiving it.
この駆動モータ２の背面を迂回して流れる冷却風は、導
風フィン５によって駆動モータ２の背面に巻き込まれ、
冷却風は駆動モータ２の背面い押し付けられるので、駆
動モータ２の背面のポテンシャルは高められ、冷却風の
渦の発生は妨げられる。The cooling air that bypasses the back surface of the drive motor 2 is drawn into the back surface of the drive motor 2 by the wind guide fins 5,
Since the cooling air is pressed against the back surface of the drive motor 2, the potential on the back surface of the drive motor 2 is increased and the generation of the vortex of the cooling air is prevented.
なお、第３図は他の実施例で、排気口12の位置が吸気口
11と駆動モータ２の中心とを結ぶ線と一致しており、上
方および下方に駆動モータ２の背面を迂回して流れる冷
却風が形成されるが、駆動モータ２の背面に対向するダ
クト１の内面に、導風フィン５、５′を設けて、上方お
よび下方から駆動モータ２の背面を迂回して流れる冷却
風を駆動モータ２の背面に押付けるようにして、冷却風
の渦の発生を防ぐようにしたものである。Note that FIG. 3 shows another embodiment, in which the position of the exhaust port 12 is the intake port.
The cooling air that flows around the back surface of the drive motor 2 is formed above and below the back surface of the duct 1 that is aligned with the line connecting 11 and the center of the drive motor 2. By providing baffle fins 5 and 5 ′ on the inner surface, cooling air that bypasses the back surface of the drive motor 2 from above and below is pressed against the back surface of the drive motor 2 to prevent the generation of vortices of the cooling air. It was designed to prevent it.
［考案の効果］ 以上述べたように、本考案によれば、駆動モータの背面
に対向するダクトの内面に導風フィンを設けて駆動モー
タの背面に冷却風の渦が発生しないようにしてあるの
で、冷却効率が高められ、温度上昇を低く押えることが
でき、電気自動車として極めて良好な加減速特性を得る
ことができる効果がある。[Advantage of the Invention] As described above, according to the present invention, the air guide fins are provided on the inner surface of the duct facing the rear surface of the drive motor so that the vortex of the cooling air is not generated on the rear surface of the drive motor. Therefore, the cooling efficiency can be increased, the temperature rise can be suppressed to a low level, and an extremely good acceleration / deceleration characteristic as an electric vehicle can be obtained.
第１図は本考案の実施例を示す側断面図、第２図は第１
図に示すII−II断面に沿う正断面図、第３図は他の実施
例を示す側断面図、第４図は従来例を示す側断面図であ
る。 １…ダクト、11…吸気口、12…排気口、２…駆動モータ
…、３…吸気ファン、４…排気ファン、５…導風フィンFIG. 1 is a side sectional view showing an embodiment of the present invention, and FIG.
FIG. 3 is a side sectional view showing another embodiment, and FIG. 4 is a side sectional view showing a conventional example. 1 ... Duct, 11 ... Intake port, 12 ... Exhaust port, 2 ... Drive motor ... 3 ... Intake fan, 4 ... Exhaust fan, 5 ... Wind guide fin
Claims (4)
口を備え、前記進行方向と逆方向に冷却風の排気口を備
えたダクトと、前記ダクトの内部の中央部に前記移動装
置の進行方向に対し直角方向に回転軸を向けて固定した
円筒形の駆動モータとを備えた電動機の冷却装置におい
て、前記駆動モータと前記排気口の間の前記ダクトの内
壁面に、前記駆動モータの前記吸気口側と反対側の面に
対向する前記ダクトの内側面から、前記駆動モータの側
面に向かって滑らかな曲線を描くように形成された導風
フィンを設け、前記駆動モータの前記吸気口側と反対側
の面側の冷却風のポテンシャルを高めるようにしたこと
を特徴とする電動機の冷却装置。1. A duct provided with an inlet for cooling air toward the traveling direction of the moving device and an outlet for cooling air in the opposite direction to the traveling direction, and the moving device at a central portion inside the duct. In a cooling device for an electric motor, the drive motor having a cylindrical shape with a rotation axis fixed in a direction perpendicular to a traveling direction of the drive motor, the drive motor being provided on an inner wall surface of the duct between the drive motor and the exhaust port. An air guide fin formed to draw a smooth curve from the inner side surface of the duct facing the side opposite to the intake port side toward the side surface of the drive motor, A cooling device for an electric motor, characterized in that the potential of cooling air on the side opposite to the mouth side is increased.
とを結ぶ線上より偏心した位置に冷却風の排気口の中心
を備え、前記駆動モータの前記吸気口側と反対側の面に
対向する前記ダクトの内側面を前記吸気口の中心と前記
駆動モータの中心とを結ぶ線より片側に形成した請求項
１記載の電動機の冷却装置。2. A center of an outlet for cooling air is provided at a position eccentric from a line connecting the center of the inlet and the center of the drive motor, and faces the surface of the drive motor opposite to the inlet. The cooling device for an electric motor according to claim 1, wherein an inner surface of the duct is formed on one side of a line connecting a center of the intake port and a center of the drive motor.
排気ファンを取り付けた請求項１または２記載の電動機
の冷却装置。3. The cooling device for an electric motor according to claim 1, wherein an intake fan is attached to the intake port, and an exhaust fan is attached to the exhaust port.
方向に対し平行に複数個の冷却ファンを備えた請求項１
から３までのいずれか１項に記載の電動機の冷却装置。4. A plurality of cooling fans are provided outside the drive motor in parallel to the traveling direction of the cooling air.
4. A cooling device for an electric motor according to any one of items 1 to 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8971590U JPH0746054Y2 (en) | 1990-08-27 | 1990-08-27 | Electric motor cooling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8971590U JPH0746054Y2 (en) | 1990-08-27 | 1990-08-27 | Electric motor cooling device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0447369U JPH0447369U (en) | 1992-04-22 |
| JPH0746054Y2 true JPH0746054Y2 (en) | 1995-10-18 |
Family
ID=31823887
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8971590U Expired - Lifetime JPH0746054Y2 (en) | 1990-08-27 | 1990-08-27 | Electric motor cooling device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0746054Y2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100957374B1 (en) * | 2007-08-27 | 2010-05-11 | 현대자동차주식회사 | Blower housing of hydrogen gas recirculation for fuel cell vehicle |
| JP2017051043A (en) * | 2015-09-04 | 2017-03-09 | 高松機械工業株式会社 | Air cooling device |
-
1990
- 1990-08-27 JP JP8971590U patent/JPH0746054Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0447369U (en) | 1992-04-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5526905A (en) | Brake disc rotor | |
| US5427212A (en) | Brake disc rotor | |
| JPS6253287A (en) | Automobile in which air guide apparatus is mounted on car body side | |
| JPH05301528A (en) | Ventilating device for automobile engine room | |
| JPH0746054Y2 (en) | Electric motor cooling device | |
| JPS6361687A (en) | Structure for front side part of automobile | |
| US20220112901A1 (en) | Impeller of a motor vehicle | |
| JPH0442558B2 (en) | ||
| JPH0137146Y2 (en) | ||
| JPS6234873Y2 (en) | ||
| SE1450802A1 (en) | Device for engine room ventilation with self-draw | |
| JP3686103B2 (en) | Drive motor cooling device | |
| CN205423321U (en) | Clutch fan | |
| JPH0428826Y2 (en) | ||
| JPS6320569Y2 (en) | ||
| JPS6123604Y2 (en) | ||
| JPS6132169Y2 (en) | ||
| JPH0345035Y2 (en) | ||
| JP2003020943A (en) | Radiator cooling device for automobile | |
| CN116902096A (en) | Air flow adjusting device and automobile | |
| JPS6137784Y2 (en) | ||
| JP2006297985A (en) | Structure of driving force transmitting part | |
| JPS6241849Y2 (en) | ||
| JPS5916690Y2 (en) | Gas suction device to heat exchanger | |
| JPH042864Y2 (en) |