Motor, motor support member and motor support method

• US 8,587,173 B2
• Filed: 03/10/2009
• Issued: 11/19/2013
• Est. Priority Date: 03/11/2008
• Status: Active Grant

• Current Assignee: Nissan Motor Co., Ltd.
• Original Assignee: Nissan Motor Co., Ltd.
• Inventors: Kurosawa, Shinya, Arai, Kazuhiko
• Primary Examiner(s): KENERLY, TERRANCE L
• Application Number:
  US12/921,983
• Publication Number:
  US 20110025155A1
• Time in Patent Office: 1,715 Days
• Field of Search: 310/51, 310/91, 310/89
• US Class Current: 310/91
• CPC Class Codes: H02K 5/24 specially adapted for suppression or reduction of noise or vibrations

Abstract

Provided is an intermediate member which is arranged between a motor housing (4) and a transmission case (2) and which has multiple motor housing supporting point positions (A) and transmission case supporting point positions (B). The intermediate member is coupled to the motor housing (4) at the motor housing supporting point positions (A). The transmission case supporting point positions (B) are each arranged in an angular region formed between a motor housing supporting line (C) and a motor housing supporting center line (D) which is the center between the motor housing supporting line (C) and another motor housing supporting line (C) adjacent thereto.

Claims

1. A motor including a stator-side member and a rotor-side member, comprising:

an intermediate member arranged between a motor attachment member which supports the motor, and the stator-side member;

a plurality of stator-side support members for coupling the stator-side member and the intermediate member; and

a plurality of motor-attachment-member-side support members for coupling the intermediate member and the motor attachment member,

wherein, when a stator-side supporting line is defined as a line connecting a center of one of the plurality of stator-side support members with a rotation center of the rotor-side member, and when a center line is defined as a line evenly dividing an included angle made by the stator-side supporting line and another stator-side supporting line adjacent to the stator-side supporting line, each of the motor-attachment-member-side support members is arranged in the intermediate member within an angular region formed between the center line and the stator-side supporting line.

2. The motor according to claim 1, wherein each of the motor-attachment-member-side support members is arranged in a central portion of the angular region.

3. The motor according to claim 1, wherein the motor-attachment-member-side support members are rotatably attached to the intermediate member.

4. An intermediate member provided between a motor and a motor attachment member to which the motor is attached, the motor including a stator-side member and a rotor-side member, the intermediate member comprising:

a plurality of stator-side support members to be coupled to the stator-side member; and

a plurality of motor-attachment-member-side support members to be coupled to the motor attachment member,

wherein, when a stator-side supporting line is defined as a line connecting a center of one of the plurality of stator-side support members with a rotation center of the rotor-side member, and when a center line is defined as a line evenly dividing an included angle made by the stator-side supporting line and another stator-side supporting line adjacent to the stator-side supporting line, each of the motor-attachment-member-side support members is arranged within an angular region formed between the center line and the stator-side supporting line.

5. An intermediate member provided between a motor which includes a stator-side member, and a motor attachment member to which the motor is attached, the intermediate member comprising:

a plurality of stator-side support members to be coupled to the stator-side member; and

a plurality of motor-attachment-member-side support members to be coupled to the motor attachment member,

wherein vibration of the stator-side member vibrating in ring zeroth-mode is transmitted to the intermediate member through the plurality of stator-side support members,

wherein a plurality of first portions having a first amplitude and a plurality of second portions having a second amplitude smaller then the first amplitude are formed in the intermediate member due to the transmission of the vibration of the stator-side member, the first portions and the second portions being alternately arranged in a circumferential direction of the intermediate member, and

wherein the motor-attachment-member-side support members are arranged in the second portions.

6. A motor including a stator-side member and a rotor-side member, comprising:

an intermediate member arranged between the stator-side member and the rotor-side member;

a plurality of first support members for coupling the stator-side member and the intermediate member; and

a plurality of second support members for coupling the intermediate member and a motor attachment member which supports the motor,

wherein, when a first support member supporting line is defined as a line connecting a center of one of the plurality of first support member with a rotation center of the rotor-side member, and when a center line is defined as a line evenly dividing an included angle made by the first support member supporting line and another first support member supporting line adjacent to the first support member supporting line, each of the second support members is arranged in the intermediate member within an angular region formed between the center line and the first support member supporting line.