Anti-vibration mounting for vehicle alternator

• US 4,849,665 A
• Filed: 02/25/1988
• Issued: 07/18/1989
• Est. Priority Date: 02/26/1987
• Status: Expired due to Term

• Current Assignee: Mitsubishi Denki Kabushiki Kaisha (Mitsubishi Electric Corporation)
• Original Assignee: Mitsubishi Denki Kabushiki Kaisha (Mitsubishi Electric Corporation)
• Inventors: Kitamura, Yutaka, Kaneyuki, Kazutoshi
• Primary Examiner(s): Wong, Peter S.
• Assistant Examiner(s): Rebsch, D. L.
• Application Number:
  US07/160,413
• Time in Patent Office: 509 Days
• Field of Search: 123/195 A, 123/195 E, 123/198 R, 248/666, 248/674, 310/51, 310/68 D, 310/89, 310/90, 310/91
• US Class Current: 310/68.00D
• CPC Class Codes: F02B 63/04 for electric generators
• CPC Class Codes: H02K 5/26 Means for adjusting casings relative to their supports

Abstract

An alternator for a vehicle includes a stator mounted on the inner periphery of first and second bowl-like brackets separated by a plane perpendicularly crossing an output shaft, and a core integrally fixed to the shaft and surrounded by the first and second brackets, wherein the shaft is supported at the substantially central portions of the first and second brackets. The improvement comprises upper and lower flanges formed at the outer periphery of the first bracket in such a manner as to extend both parallel to the shaft, and perpendicular, in a direction tangent to the outer periphery of the first bracket, and elongated mounting bolts for fixing the alternator to the vehicle engine at the upper and lower flanges through mounting holes formed through the upper and lower flanges. This tends to isolate the rotor from engine vibration.

Claims

1. A fixing mechanism for an alternator for a vehicle, comprising a first bracket having a bowl-like shape and having an inner periphery engaged with an outer periphery of a stator in said alternator over substantially the entire width of said stator, said first bracket being formed with columnar upper and lower flanges having bolt mounting holes extending in perpendicular relationship to a longitudinal direction of a shaft in said alternator;

a second bracket integrally formed with a flange having a mounting hole extending in parallel relationship to the longitudinal direction of said shaft, said stator being held between said first bracket and said second bracket; and

a mounting bolt for fixing said flange of said second bracket to said lower columnar flange of said first bracket.

2. The fixing mechanism for the alternator as defined in claim 1, wherein said upper and lower flanges of said first bracket have a plurality of said bolt mounting holes for receiving mounting bolts.

3. The fixing mechanism for the alternator as defined in claim 1, wherein said second bracket has a pair of flanges to be fixed through bushings to said upper and lower flanges of said first bracket.

4. A fixing mechanism for an alternator for a vehicle, comprising:

a first bracket composed of a bowl-like body supporting at the center of the body one end of an output shaft of said alternator on which a pulley is mounted, said bowl-like body having an opening portion engaged at the inner periphery of the body with a stator, and substantially cylindrical upper and lower flanges integrally formed with said bowl-like body at opposite positions on the outer periphery thereof with respect to said shaft in a direction tangent to the outer periphery of said body;

a second bracket composed of a dish-like body supporting at the center of the body the other end of said output shaft, said dish-like body surrounding a core provided inside said stator about the outer circumference of said shaft to receive a rotational driving portion of said alternator in combination with said first bracket, said second bracket being formed with flanges opposed to said upper and lower flanges of said first bracket and fixed thereto by mounting bolts; and

three elongated mounting bolts for fixing said first bracket to an engine of said vehicle.

5. The fixing mechanism for the alternator as defined in claim 4, wherein said substantially cylindrical upper and lower flanges are formed with axially elongated channels.

6. The fixing mechanism for the alternator as defined in claim 4, wherein said upper and lower flanges are columnar portions having a substantially elliptic shape in section, each flange being formed with two mounting holes at substantially center positions of the elliptic shape, and said elongated bolts are received in two mounting holes of said upper flange and the two mounting holes of said lower flange to fix said upper and lower flanges to said engine.