Drive motor mounting structure

• US 20050079068A1
• Filed: 10/05/2004
• Published: 04/14/2005
• Est. Priority Date: 10/09/2003
• Status: Active Grant

• Current Assignee: Nissan Motor Co., Ltd.
• Original Assignee: Nissan Motor Co., Ltd.
• Inventors: Shigematsu, Satoshi
• Granted Patent: US 7,445,076 B2
• Time in Patent Office: Days
• US Class Current: 417/363
• CPC Class Codes: B60K 5/1216 characterised by the location of the supports relative to the motor or to each other B60K5/1225 takes precedence

Abstract

For spatial arrangement of a drive motor (1) in a motor room (2), a three-point support system (TPS) includes supports (SP1, SP2) having a vibration suppressing member (3) for suppressing vibrations to be transmitted from the drive motor (1), a first bracket (5) for fixing the vibration suppressing member (3) to a transversely inner lateral side (4a) of a side member (4) of a front part (VBf) of a vehicle body, and a second bracket (6) for fixing the drive motor (1) to the vibration suppressing member (3), while the first bracket (5) is fastened to the inner lateral side (4a) of the side member (4), and the second bracket (6) is fastened at a proximal end (6a) to the vibration suppressing member (3) and at a distal end (6b) to the drive motor (1) to be disposed lower than the side member (4), with a reduced vibration transmission from the drive motor (1) to the vehicle body, allowing a facilitated removal of the drive motor (1).

Claims

1. A drive motor mounting structure comprising:

a motor room defined with side members; and

a motor supporting system comprising a plurality of supports cooperative with each other to support a drive motor in a spatial position in the motor room relative to the side members, the motor supporting system including a support comprising;

a vibration suppressor configured to suppress vibrations being transmitted therethrough;

a first support member configured to support the vibration suppressor relative to a lateral side of the side member, and

a second support member configured to support the drive motor relative to the vibration suppressor.

2. The drive motor mounting structure as claimed in claim 1, wherein the motor supporting system further comprises a vibration absorber interposed between the vibration suppressor and the first support member.

3. The drive motor mounting structure as claimed in claim 2, wherein

the vibration suppressor comprises an anti-vibratory member,

the first support member comprises a bracket configured to hold the anti-vibratory member,

the vibration absorber comprises a collar provided through the anti-vibratory member, and

the motor supporting system further comprises a fastener provided through the bracket and the collar to fasten the bracket together with the anti-vibratory member to the lateral side of the side member.

4. The drive motor mounting structure as claimed in claim 3, wherein the collar comprises a pair of nested metallic bushes and an elastic material inserted therebetween.

5. The drive motor mounting structure as claimed in claim 1, wherein the motor supporting system further comprises a vibration absorber interposed between the vibration suppressor and the second support member.

6. The drive motor mounting structure as claimed in claim 5, wherein

the vibration suppressor comprises an anti-vibratory member,

the second support member comprises a bracket configured to support the drive motor,

the vibration absorber comprises a collar provided through the anti-vibratory member and the link, and

the motor supporting system further comprises a fastener provided through the collar to fasten the bracket to the anti-vibratory member.

7. The drive motor mounting structure as claimed in claim 6, wherein the collar comprises a pair of nested metallic bushes and an elastic material inserted therebetween.

8. The drive motor mounting structure as claimed in claim 1, wherein

the vibration suppressor comprises a planer anti-vibratory member contacting at a back side thereof on the lateral side of the side member,

the first support member comprises a first bracket contacting on a front side of the anti-vibratory member,

the second support member comprises a second bracket put at one end thereof on the front side of the anti-vibratory member and fixed at another end thereof to the drive motor, and

the motor supporting system further comprises:

a vibration absorbing first fastener configured to fasten the first bracket together with the anti-vibratory member to the lateral side of the side member, and

a vibration absorbing second fastener configured to fasten the one end of the second bracket to the anti-vibratory member.

9. The drive motor mounting structure as claimed in claim 8, wherein the first fastener comprises a bolt, an elastic collar fitted on a stem of the bolt, and a nut.

10. The drive motor mounting structure as claimed in claim 8, wherein the second fastener comprises a bolt, an elastic collar fitted on a stem of the bolt, and a nut.

11. The drive motor mounting structure as claimed in claim 10, wherein the anti-vibratory member has a recess formed in the back side, and the bolt has a head accommodated in the recess.

12. The drive motor mounting structure as claimed in claim 1, wherein

the motor room has a wheel-suspension-supporting sub-frame member connected to the side member, and

the motor supporting system further comprises a bracket interposed between the drive motor and the sub-frame member.

13. The drive motor mounting structure as claimed in claim 1, wherein the vibration suppressor is mounted to the lateral side of a size-reduced portion of the side member.

14. The drive motor mounting structure as claimed in claim 1, wherein

the motor room is defined with a front wheel housing, and

the vibration suppressor is fixed to a region of the lateral side of the side member near a front end of the front wheel housing.

15. A drive motor mounting structure comprising:

a motor room defined with side members; and

a motor supporting system comprising a plurality of supports cooperative with each other to support a drive motor in a spatial position in the motor room relative to the side members, the motor supporting system including a support comprising;

vibration suppressing means for suppressing vibrations being transmitted therethrough;

first supporting means for supporting the vibration suppressing means relative to a lateral side of the side member, and

second supporting means for supporting the drive motor relative to the vibration suppressing means.

16. A drive motor mounting structure for a drive motor to be mounted in a motor room, the drive motor mounting structure comprising:

a vibration suppressing member configured to suppress vibrations being transmitted from the drive motor,

a first bracket configured to mount the vibration suppressing member to a transversely inner lateral side of a side member in the motor room, the first bracket being fixed to the lateral side of the side member, and

a second bracket configured to mount the drive motor to the vibration suppressing member, the second bracket having one end thereof fixed to the drive motor and an opposite end thereof fixed to the vibration suppressing member, so that the drive motor is disposed under the side member.

17. The drive motor mounting structure as claimed in claim 16, having a doubled anti-vibratory structure comprising:

a first vibration absorber through which the vibration suppressing member is fastened to the first bracket; and

a second vibration absorber through which the vibration suppressing member is fastened to the second bracket.