Generator for vehicle

Abstract

The invention provides a generator for vehicle that is miniaturized and uses space in a generator cover effectively. The generator for vehicle has a rotor boss (2) engaged with a crankshaft (1) with a rotor core (3) engaged with the outer circumference of the rotor boss. A stator core (18) is provided around the outer circumference of the rotor core (3) with a bus ring (25) opposed to one end surface of the rotor core (3). The outer circumference of the bus ring (25) is engaged with a plurality of insulating components (20) surrounding the teeth. A rotation angle detection sensor (37) of the rotor boss (2) is configured opposite to a sensor magnet (10) in front of the rotor boss (2). The stator core (18) has a split structure. Each stator core block (19) is fixed to a generator cover (23) by a bolt. The generator cover (23) is fixed to the outer surface of a crankcase. The rotor core (3) is formed with a plurality of holes (6) for respectively supporting a plurality of rotor magnets (5). The bus ring (25) includes a plurality of terminals (26) and grommets (27-29) connected through bus bars (25a) to the terminals.

Description

technical field [0001] The present invention relates to a vehicle generator, and more particularly to a vehicle generator capable of downsizing by effectively utilizing the space in a generator cover. Background technique [0002] As a generator for a vehicle driven by an engine, there is known a structure in which an external rotor with permanent magnets that doubles as a flywheel is attached to a crankshaft serving as an output shaft of the engine, and an internal stator having a winding is attached to the power generator. On the hood (JP-A-2002-112594 Gazette, JP-A-2001-286100 Gazette). [0003] Japanese Patent Document 1: Japanese Unexamined Patent Publication No. 2002-112594 [0004] Japanese Patent Document 2: Japanese Unexamined Patent Publication No. 2001-286100 [0005] In the vehicle generators disclosed in Patent Documents 1 and 2, a relatively large space is required between the outer periphery of the outer rotor directly connected to the crankshaft and the inn...

AI Technical Summary

Problems solved by technology

[0005] In the vehicle generators disclosed in Patent Documents 1 and 2, a relatively large space is required between the outer periphery of the outer rotor directly connected to the crankshaft and the inner peripheral surface of the generator cover, and therefore the generator cover tends to become larger.

Especially in motorcycles, the generator cover is often arranged to protrude from the side of the vehicle body. Therefore, if the generator cover is large, it is difficult to obtain a large inclination angle.

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