Classifications

• • H—ELECTRICITY
  • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
  • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
  • H02J7/14—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from dynamo-electric generators driven at varying speed, e.g. on vehicle
  • H02J7/16—Regulation of the charging current or voltage by variation of field
  • H02J7/163—Regulation of the charging current or voltage by variation of field with special means for initiating or limiting the excitation current

Definitions

• This invention relates to a vehicle charging device having a charging generator. '' Background technology
• FIG. 1 is an electric circuit diagram showing an example of a conventional vehicle charging device.
• reference numeral 1 denotes a vehicle or the like not shown.
• the coils 3 are main rectifiers for rectifying the armature coil 1, the auxiliary rectifier 4 is for controlling the field current, and the main rectifier 3 is for controlling the above-mentioned field current.
• a voltage regulator for controlling the voltage between the output terminals of the power supply to a predetermined value, 6 is a battery, 7 is a connection between the battery 6 and the field coil 2 and the voltage regulator 5
• the key switch 8 provided in the circuit thus formed is in the vicinity of the above-mentioned key switch 7, and has one end connected to the key switch 7 and the other end connected to the above-described voltage adjustment.
• the charge indicator light 9 is an electric load connected in parallel to the battery 6.
• the field current circuit of the auxiliary rectifier 4 ⁇ the field coil 2 ⁇ the voltage regulator 5 ⁇ the earth ⁇ the main rectifier 3 ⁇ the auxiliary rectifier 4 is closed. Further, when the output voltage of the auxiliary rectifier 4 reaches a predetermined value, The field current is cut off by the voltage regulator 5, and the output voltage of the auxiliary rectifier 4, that is, the output voltage of the main rectifier 3 is kept at a predetermined value. At the same time, the charge indicator light 8 turns off, indicating that the battery 6 is being charged.
• the above-described conventional device employs a control method in which the field current is supplied from the output of the generator, and the voltage is controlled to a predetermined value by interrupting the field current.
• the load is interrupted only by the output of the generator due to the field current, and when the field current is cut off, that is, the voltage regulator 5 is turned off.
• ® indicates the surge voltage during commutation of the generator.
• a power supply for exciting an AC generator is provided separately from a battery, and a field current flowing through a field coil is supplied from the power supply for excitation. Therefore, it is possible to suppress the fluctuation of the surge voltage caused by the intermittent operation of the voltage regulator, and thus to reduce the generation of noise.
• FIG. 1 is a circuit diagram of a conventional vehicle charging device
• FIG. 2 is a waveform diagram showing a surge voltage in the conventional device
• FIG. 3 is a circuit diagram showing one embodiment of the present invention
• FIG. 4 is a diagram corresponding to FIG. 2 in one embodiment of the present invention.
• FIG. 3 is a circuit diagram showing one embodiment of the vehicle charging apparatus according to the present invention. .
• reference numeral 10 denotes a second battery which is a power supply for exciting an AC generator (not shown), and the positive side thereof is connected to the field coil 2 via the field coil 2. Thus, it is connected in series with the voltage regulator 5.
• Reference numeral 1 denotes a power supply for charging the second battery, such as a solar cell or a thermoelectric conversion element.
• Reference numeral 12 denotes a diode for preventing backflow. The anode side is connected to the above power supply, and the cathode is The battery side is connected to the positive side of the second battery 10 described above.
• Reference numeral 13 denotes a second key switch which opens and closes in cooperation with the key switch 7. The battery is connected to the backflow preventing diode 12. Between the contact point and the field coil 2.
• the second battery 10 charged by the power supply 11 via the diode 12 causes the second battery 10 ⁇ 2nd key switch 1 3 ⁇ field coil 2 voltage regulator 5 ⁇ circuit of second battery 10 passes, and field current flows through field coil 2 Flows, and a field magnetomotive force is generated.
• the armature coil when the engine is started by an unillustrated starting motor, the armature coil
• the present invention is not limited to the alternator of a passenger car, but can be applied to other agricultural tractors, industrial vehicles, and other vehicles.

Landscapes

• Engineering & Computer Science (AREA)
• Power Engineering (AREA)
• Control Of Charge By Means Of Generators (AREA)
• Control Of Eletrric Generators (AREA)

Applications Claiming Priority (2)

Publications (1)

Family

ID=13810372

Family Applications (1)

Country Status (3)

Families Citing this family (1)

Citations (2)

Family Cites Families (7)

• 1982
  • 1982-06-03 JP JP1982083721U patent/JPS58186756U/ja active Granted
• 1983
  • 1983-06-01 WO PCT/JP1983/000179 patent/WO1987000985A1/ja unknown
• 1984
  • 1984-01-27 US US06/576,387 patent/US4588939A/en not_active Expired - Fee Related

Patent Citations (2)

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