44037
FIG. D.l/3 ALTERNATOR
29.
Stator;
24.
End shield;
1.
Pulley;
23.
Fan;
30.
Shield, rings;
B.
(
+)
Terminal
of
battery
charge circuit;
C.
Terminal;
D.
(-)Grounding
ter·
mlnal;
DF.
Terminal
of
excitation winding
---·"""
FIG. D.l/3a. FUNDAMENTAL CIRCUIT OF
ALTERNATOR
FIG. D.l/3b ALTERNATOR WITHOUT END
SHIELDS
a. Rectifier diodes;
37.
Collecting brush
FIG. D.l/4 THE STATOR
55. Insulating tube;
56.
Wire terminals;
57.
Hex
screw;
58.
Conducting wire
ROTOR:
The rotor (Fig.
0.1/5)
consists
of
two polar
discs
59
(each provided with 6 poles), clawshaped,
which, when Interlocked, hold
an
excitation win·
ding
(60),
which is coaxial
to
the shaft. The win·
ding is made of" copper wire insulated
with
enamelled polyvinyl. The ends
of
the
excitor
win·
ding
are connected to the two slip rings
(61).
The
collector, front type, is fitted to the rotor shaft
(62)
on the end opposite to the thread.
The brushes, positive
(37a,
Fig.
0.1116)
and
negative
(37b)
which contact both slip rings, are
accommodated in the brush holder. The brush·
holder
(32)
is made
of
plastic compound and is
attached
to
the collecting shield
(30,
Fig.
0.1/15).
The brush-holder is provided with the
"OF"
ter-
minal which connects the positive brush; the
negative brush is grounded
by
means
of
a screw
that retains the brush holder
to
the
collector
shield (Fig.
0.1/16).
FIG. D.l/5 THE
ROTOR
59. Polar disc; 60. Excitor winding;
61.
Slip rings;
62. Rotor shaft
Electrical
System
· 189
To Next Page
Loading...
Need help?
General
