AC power supply
First Claim
1. An alternating current power supply assembly which has an extendable operational period and which provides an external power supply for a tool, the power supply assembly comprising:
- a power inverter for converting direct current (DC) into alternating current (AC); and
a removable battery unit which is connectable to the power inverter by a coupling to form the power supply and which when so connected forms a discrete unit and such that in use, a DC output from the removable battery unit is converted to an AC output from the power supply assembly by the power inverter, the operational period of the power supply assembly being extended by replacement of the battery unit when a portion of the energy in the battery unit has been used;
wherein, the coupling comprises a recessed area on the underside of the inverter, the recessed area having an electrical connector and a mechanical connector, and a battery unit coupling which projects from the battery unit, andwherein the coupling provides an electrical connection between the power inverter and the battery unit and a mechanical coupling which removeably secures the power inverter to the battery unit.
2 Assignments
0 Petitions
Accused Products
Abstract
A portable alternating current power supply assembly which has an extendable operational period and which provides an external power supply for a tool. It has a power inverter and a removable battery unit which is connectable to the power inverter by a coupling to form the power supply and which when so connected forms a discrete unit. A DC output from the removable battery unit is converted to a pure sine wave AC output from the power supply assembly by the power inverter. The power inverter is separable from the battery unit to provide an operational period for the power supply assembly which is equivalent to that which might be provided using larger AC power supplies which have larger DC voltage batteries and which are part of a sealed unit with the power inverter.
18 Citations
30 Claims
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1. An alternating current power supply assembly which has an extendable operational period and which provides an external power supply for a tool, the power supply assembly comprising:
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a power inverter for converting direct current (DC) into alternating current (AC); and a removable battery unit which is connectable to the power inverter by a coupling to form the power supply and which when so connected forms a discrete unit and such that in use, a DC output from the removable battery unit is converted to an AC output from the power supply assembly by the power inverter, the operational period of the power supply assembly being extended by replacement of the battery unit when a portion of the energy in the battery unit has been used; wherein, the coupling comprises a recessed area on the underside of the inverter, the recessed area having an electrical connector and a mechanical connector, and a battery unit coupling which projects from the battery unit, and wherein the coupling provides an electrical connection between the power inverter and the battery unit and a mechanical coupling which removeably secures the power inverter to the battery unit. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30)
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Specification