JPS6291578U - - Google Patents

Description

[Brief explanation of the drawing]

Figures 1 and 2 are explanatory diagrams of the polarity of the rotor and magnetic poles according to the present invention, Figure 3 is an explanatory diagram of the magnetic flux distribution due to the magnetomotive force of the armature reaction of the welding winding, and Figure 4 is an explanatory diagram of the 6
An example of the circuit configuration of an AC output combined welding generator with phase and half wave rectification type welding output, Figure 5 is a connection diagram of a welding winding with three phase full wave rectification type, and Figure 6 is an AC generator according to the present invention. The welding output external characteristic curve of the output combined welding generator, Fig. 7 is the AC output external characteristic curve of the AC output combined welding generator according to the present invention, Fig. 8 A, B, and Fig. 9 A, B are single-phase AC. Output waveform diagram, Fig. 10 is an example of each armature winding when the waveform is shown in Fig. 8 A, B, and Fig. 11 is an example of each armature winding when the waveform is shown in Fig. 9 A, B. One embodiment of the child winding, FIG. 12 is a structural explanatory diagram of another embodiment of the rotor, FIG. 13,
FIG. 14 shows an explanatory diagram of a conventional AC output combined welding generator. In the figure, 1 is a rotor, 2 to 7 are grooves, 9, 10
is a commutating pole, 11 to 14 are magnetic poles, 20 to 25
is a welding winding, 26 is a rectifier diode, 27 is a reactor, 29 is a single-phase AC output winding, 32 is a self-excited output winding, 33 is a rectifier diode, 36 is a field winding, 38 is a welding winding , 39 is a rectifier diode, 4
1 to 44 are magnetic poles, 45 to 48 are complementary poles, 4
9 represents a field winding.

Claims (1)

[Scope of utility model registration request] In an engine-driven AC output combined welding generator equipped with a stator wound with two windings, a welding winding and a single-phase AC output winding, and a convex-pole field rotor, the stator side In this case, among the group of slots in which the single-phase AC output winding is to be wound, a large number of conductors of the single-phase AC output winding are concentrated in the slot occupying the central part of the slot group. ,
The winding structure is such that the number of conductors to be inserted decreases as the distance from the slot in the center increases, and on the convex pole type field rotor side, the field winding is not wound around the rotor. In addition to providing a commutating pole, the commutating pole is a rotor having a structure in which the field winding wound around the magnetic poles on both sides becomes a magnetic pole with a polarity different from that of the magnetic poles on both sides when no load is applied. When welding current flows through the winding, the polarity of the above-mentioned complementary pole is reversed due to the armature reaction of the welding winding, improving the voltage fluctuation of the single-phase AC output winding during welding, and improving the single-phase AC output waveform. An AC output combined welding generator characterized by improving distortion of the AC output.