Charging System Description; Alternator Types; Permanent Magnet Type - Honda Motorcycle Service Manual

BATTERlES/CHARGING/LlGHTlNG SYSTEM
CHARGING SYSTEM DESCRIPTION
The charging system basically consists of the following
components.
ALTERNATOR
/ L
I
BATTERY
: -
.
ALTERNATOR TYPES
I
STATOR
I
Component name
Regulatorlrectifier
Alternator
Battery
Function
- - -
.
Regulates voltage so that it stays within the specified range.
.
Converts alternating current (AC) to direct current (DCI.
.
A generator producing current (AC) which is powered by engine
-
revolution.
.
Stores regulated DC current.
Permanent Magnet Type
The alternator consists of a rotor and a stator. The rotor con-
sists of a flywheel made up of a series of magnets, and is
usually driven by the crankshaft. The stator consists of a
series of soft iron poles arround which are wound coils of
wire.
When the engine starts, the rotor rotates with the crankshaft.
When the outer (or inner) core of the coil passes through the
magnetic field, current is generated. This is called elec-
tromagnetic induction, and other systems such as the ignition
and AC lighting systems generate power under the same
principle.
This is the most common type of alternator with the stator
placed inside the rotor. The permanent magnet is assembled
on the inner walls of the rotor.
ROTOR
In general, the stator consists of several coils producing power
for the charging, ignition and lighting systems. Current fot
charging the battery is generated by the charging coil.
In addition, the rotor acts as additional flywheel weight,
smoothing out engine pulsations at low engine rpm
22-1
4
Date of Issue: March,
1995
0
HONDA MOTOR CO.,LTD.