IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0222082
(2002-08-16)
|
우선권정보 |
JP-0264768 (2001-08-31) |
발명자
/ 주소 |
- Yoshikawa, Mamoru
- Sato, Hiroyuki
- Kimura, Kiyoshi
- Mogi, Seiichi
|
출원인 / 주소 |
- Honda Giken Kogyo Kabushiki Kaisha
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
9 인용 특허 :
11 |
초록
▼
A motor structure of an electric vehicle which is driven by an electric motor. The motor structure comprises an electric motor unit including the electric motor and differential gears, and a radiator for cooling the electric vehicle. Accessories are mounted on the electric motor unit. The radiator i
A motor structure of an electric vehicle which is driven by an electric motor. The motor structure comprises an electric motor unit including the electric motor and differential gears, and a radiator for cooling the electric vehicle. Accessories are mounted on the electric motor unit. The radiator is positioned at a front side of the electric vehicle and in front of the electric motor unit. In this motor structure, one of universal joints, each of which connects a drive shaft on the differential gears side and a drive shaft on a wheel side, is adjacent to a side of the electric motor, which is in the form of a cylinder.
대표청구항
▼
1. A motor structure of an electric vehicle, the electric vehicle being driven by an electric motor, comprising:an electric motor unit including a motor housing having a cylindrical housing portion for accommodating the electric motor, and a gear housing portion for accommodating differential gears,
1. A motor structure of an electric vehicle, the electric vehicle being driven by an electric motor, comprising:an electric motor unit including a motor housing having a cylindrical housing portion for accommodating the electric motor, and a gear housing portion for accommodating differential gears, wherein the electric motor unit is driven by a fuel cell,accessories, including an intake system supplying air to the fuel cell, mounted onto the electric motor unit;a radiator positioned at a front side of the electric vehicle and in front of the electric motor unit; anda universal joint connecting a first drive shaft extending from the differential gears with a second drive shaft connected to a wheel of the electric vehicle,wherein said universal joint is adjacent to a radially extending side surface of the cylindrical housing portion of the motor housing, and an outer portion of the universal joint that is adjacent to the side surface extends by a first distance in a radial direction relative to the first drive shaft, and an inner portion of the electric motor that is closest to the first drive shaft in the radial direction is separated from the first drive shaft by a second distance that is less than the first distance.2. A motor structure of an electric vehicle according to claim 1, wherein said accessories further include a power control unit controlling electric power from the fuel cell.3. A motor structure of an electric vehicle according to claim 1, wherein drive shafts on right and left wheel sides have substantially the same length.4. A motor structure of an electric vehicle according to claim 2, wherein drive shafts on right and left wheel sides have substantially the same length.5. The motor structure of claim 1, wherein the universal joint is in contact with the cylindrical housing portion.6. A motor structure of an electric vehicle, the electric vehicle being driven by an electric motor, comprising:an electric motor unit including a motor housing having a cylindrical housing portion for accommodating, the electric motor and a gear housing portion for accommodating differential gears, wherein the electric motor unit is driven by a fuel cell,accessories, including an intake system supplying air to the fuel cell, mounted onto the electric motor unit;a radiator positioned at a front side of the electric vehicle and in front of the electric motor unit; anda universal joint connecting a first drive shaft extending from the differential gears with a second drive shaft connected to a wheel of the electric vehicle,wherein said universal joint is positioned axially outward from a radially extending side surface of the cylindrical housing portion, and a portion of the universal joint overlaps a portion of the radially extending side surface in a radial direction relative to the electric motor.7. The motor structure of claim 6, wherein a portion of the universal joint overlaps the side surface of the cylindrical housing portion.8. The motor structure of claim 6, wherein the universal joint is adjacent to the side surface of the cylindrical housing portion.9. The motor structure of claim 7, wherein the universal joint is in contact with the side surface of the cylindrical housing portion.10. The motor structure of claim 1, wherein the universal joint is fixed to the motor housing.11. The motor structure of claim 6, wherein the universal joint is fixed to the motor housing.12. A motor structure of an electric vehicle, the electric vehicle being driven by an electric motor, comprising:an electric motor unit including a motor housing having a cylindrical housing portion for accommodating the electric motor, and a gear housing portion for accommodating differential gears,accessories mounted onto the electric motor unit;a radiator positioned at a front side of the electric vehicle and in front of the electric motor unit; anda universal joint connecting a first drive shaft extending from the differential gears with a second drive shaft connected to a wheel of the electric vehicle,wherein said universal joint is fixed to a radially extending side surface of the cylindrical housing portion of the motor housing, and an outer portion of the universal joint that is adjacent to the side surface extends by a first distance in a radial direction relative to the first drive shaft, and an inner portion of the electric motor that is closest to the first drive shaft in the radial direction is separated from the first drive shaft by a second distance that is less than the first distance.13. A motor structure of an electric vehicle, the electric vehicle being driven by an electric motor, comprising:an electric motor unit including a motor housing having a cylindrical housing portion for accommodating, the electric motor and a gear housing portion for accommodating differential gears,accessories mounted onto the electric motor unit;a radiator positioned at a front side of the electric vehicle and in front of the electric motor unit; anda universal joint connecting a first drive shaft extending from the differential gears with a second drive shaft connected to a wheel of the electric vehicle,wherein said universal joint is positioned axially outward from and fixed to a radially extending side surface of the cylindrical housing portion, and a portion of the universal joint overlaps a portion of the radially extending side surface in a radial direction relative to the electric motor.14. A motor structure of an electric vehicle, the electric vehicle being driven by an electric motor, comprising:an electric motor unit including a motor housing having a cylindrical housing portion for accommodating the electric motor, and a gear housing portion for accommodating differential gears, the differential gears coupling a motor shaft to a first drive shaft extending from the differential gears, wherein the first drive shaft is offset from and parallel to the motor shaft,accessories mounted onto the electric motor unit;a radiator positioned at a front side of the electric vehicle and in front of the electric motor unit; anda universal joint connecting the first drive shaft extending from the differential gears with a second drive shaft connected to a wheel of the electric vehicle,wherein said universal joint is adjacent to a radially extending side surface of the cylindrical housing portion of the motor housing, and an outer portion of the universal joint that is adjacent to the side surface extends by a first distance in a radial direction relative to the first drive shaft, and an inner portion of the electric motor that is closest to the first drive shaft in the radial direction is separated from the first drive shaft by a second distance that is less than the first distance.
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