PROBLEM TO BE SOLVED: To prolong the life of a battery by reducing a power supply frequency from a sub battery to general loads and voltage reduction reset loads.SOLUTION: A power supply device comprises: a power generator 6; first and second batteries 2, 3; and a power supply circuit 9 configured to connect the first and second batteries to the power generator in parallel. The power supply circuit includes: a battery switch 8 that can switch acceptance and rejection of power supply to general loads 22-24 independently from switch operation of a starter switch; a first switch part which is provided between voltage reduction reset loads 25, 26 and the second battery 3, and can operate in conjunction with the switch operation of the starter switch; and a second switch which is provided between the general loads and the first battery 2, and can operate according to the switch operation of the battery switch. When the starter switch is turned off, power is supplied from the first battery to the voltage reduction reset loads. When the starter switch is turned on, power is supplied from the first and second batteries to the voltage reduction reset loads.SELECTED DRAWING: Figure 1

    【課題】サブバッテリから一般負荷や電圧低下リセット負荷への給電頻度を少なくし、長寿命化を図ること。【解決手段】発電機6と、第1及び第2のバッテリ2、3と、第1及び第2のバッテリを発電機に並列に接続可能に構成された給電回路9を備え、スタータスイッチの切替操作とは独立して、一般負荷22〜24への給電可否を切替可能なバッテリスイッチ8と、電圧低下リセット負荷25、26及び第2のバッテリ3間に設けられ、スタータスイッチの切替操作に連動して動作可能な第1のスイッチ部と、一般負荷及び前記第1のバッテリ2間に設けられ、バッテリスイッチの切替操作に応じて動作可能な第2のスイッチ部とを含み、スタータスイッチがオフの場合、電圧低下リセット負荷に対して第1のバッテリから給電され、オンの場合、電圧低下リセット負荷に対して第1及び第2のバッテリから給電される。【選択図】図1


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    Title :

    VEHICULAR POWER SUPPLY DEVICE


    Additional title:

    車両用電源装置


    Contributors:

    Publication date :

    2016-06-30


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    F02N STARTING OF COMBUSTION ENGINES , Anlassen von Brennkraftmaschinen / H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER , Schaltungsanordnungen oder Systeme für die Abgabe oder Verteilung elektrischer Leistung / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR



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