초록 ▼

A method and apparatus for the automatic connection of battery cables to eliminate spark or other undesirable effects from misconnection includes apparatus for sensing the polarity of the batteries to which the cables are attached and for automatically switching the connection cables so that the pol

A method and apparatus for the automatic connection of battery cables to eliminate spark or other undesirable effects from misconnection includes apparatus for sensing the polarity of the batteries to which the cables are attached and for automatically switching the connection cables so that the polarities are matched. Other portions of the circuit inhibit charging if one of the clamps becomes disconnected from a battery post or if a battery is below a predetermined small voltage indicating either an unchargeable battery or a disconnected cable condition. A specialized battery cable clamp is provided in which one set of jaws is insulated from the other, with a standoff preventing the jaws from touching each other. Once predetermined conditions have been met and the sense of the terminals on each of the batteries has been periodically ascertained, the main switching relays are activated so as to connect the appropriate main battery cables from one battery to another.

대표청구항 ▼

Anti-spark jumper cable apparatus for automatically interconnecting batteries via sets of battery cables, each set adapted to be connected to the terminals of a battery comprising: means coupled to said battery cables for automatically sensing the polarity of the voltages delivered by said batteries

Anti-spark jumper cable apparatus for automatically interconnecting batteries via sets of battery cables, each set adapted to be connected to the terminals of a battery comprising: means coupled to said battery cables for automatically sensing the polarity of the voltages delivered by said batteries at the respective terminals and for automatically connecting said battery cables together such that the respective positive and negative terminals of said batteries are connected together, said battery polarity sensing means including means for sensing the polarity of the output voltages from both batteries, means for comparing the sensed polarities and means for setting said connecting means responsive to whether the sensed polarities are the same or different.