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Power supply apparatus

A power supply device, battery technology, applied in the direction of circuit devices, battery circuit devices, circuits, etc., can solve problems such as troublesome settings, and achieve the effects of preventing over-discharge, reliable charging, and preventing over-charging

Inactive Publication Date: 2005-08-10
HONDA MOTOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In addition, it is conceivable to replace the battery with a different capacity according to the size of the connected load, but in that case, there is a possibility that the battery management must be performed by setting the charge and discharge levels of the replaced battery every time. problems that are cumbersome and difficult to set properly

Method used

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Embodiment Construction

[0026] Hereinafter, the present invention will be described in detail with reference to the accompanying drawings. figure 1 It is a block configuration diagram showing the concept of the power supply device of the present invention. In this figure, the generator 1 is constituted by, for example, a three-phase multi-pole magnet generator. The generator 1 is connected to the engine 2, is an engine-driven generator driven by the engine 2, and is a motor-generator that can also operate as an engine starter motor.

[0027] The rectifier circuit 3 rectifies the output of the generator 1 and also functions as a drive inverter for converting a DC voltage supplied from its output side into a three-phase AC voltage and applying it to the generator 1 .

[0028] The power conversion unit 4 has a DC regulator 4-1 and an inverter 4-2, and converts the output of the rectification circuit 3 or a DC-DC converter 5 described later into AC power of a predetermined frequency and outputs it to th...

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Abstract

The invention provides a power supply device which can check a battery in the current using status and can implement appropriate charge, discharge and other battery management to the corresponding battery when connected with any battery. The invention is characterized in that the power of the load is supplied by the output of a battery (6) and the output of a generator driven by an engine; the voltage of the battery (V), the current of the battery (I) and the atmosphere temperature of the battery (T) are detected by a detection part (21); the capacity and the discharging rate of the battery are deduced by a battery capacity calculating part (23) and a discharge rate calculating part (25); the discharge duration of the battery (6) is limited according to the allowable discharge duration which is obtained by an allowable discharge duration calculating part 26; the battery (6) is charged utilizing the output of the generator; the charging current is controlled by the upper limit current of charging calculated by a calculating part of the upper limit current of charging (27).

Description

technical field [0001] The present invention relates to a power supply device, and more particularly to a power supply device capable of reasonably supplementing the output of a generator driven by an engine from a battery. Background technique [0002] Patent Document 1 JP-A-2003-102200 [0003] Power generating devices such as engine-driven generators have been widely used as power supply devices for various applications ranging from portable use to emergency use. In a power supply device with a small output, for example, when a load such as a mercury lamp load or a motor load is connected to a load through which a large current flows instantaneously at startup, a momentary overload state occurs, and the rotation speed of the engine and generator The number decreases, resulting in a stall (off). That is, when a momentary overload state occurs, the number of revolutions of the engine decreases, and the output of the generator decreases due to the decrease, and the overloa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J7/34H01M10/44H01M10/48H02J7/14H02P9/04
CPCH02J7/1415H02J7/1461H02J7/1438H02J7/0048H02J7/00302H02J7/00306H02J7/0047
Inventor 江口博之清水元寿
Owner HONDA MOTOR CO LTD
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