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US 11,108,254 B2Granted
Cordless appliance, such as a surface cleaning apparatus and a charging unit therefor
AssigneeOmachron Intellectual Property Inc.
InventorWayne Ernest Conrad
Life of this patent
Estimating the term…
Abstract
An appliance, such as a portable surface cleaning apparatus is powered by one or more ultracapacitors and a charging unit for same is provided.
Claims27
A portable charging unit electrically connectable to a mains power supply, the portable charging unit comprising:
- (a) a hand carriable battery charger body;
- (b) an onboard energy storage member;
- and,
- (c) a power output circuit, which in operation, is electrically connected to the onboard energy storage member,
- wherein an ultracapacitor for a portable power appliance is removably electrically connectable to the portable charging unit, and
- in an onboard energy storage member charging mode, the portable charging unit is electrically connected to the mains power supply, and the portable charging unit is operable to charge the onboard energy storage member using power from the mains power supply;
- and,
- in an ultracapacitor charging mode, the onboard energy storage member is electrically connected to the power output circuit and the ultracapacitor is also electrically connected to the power output circuit, whereby the portable charging unit is operable to charge the ultracapacitor by discharging stored energy from the onboard energy storage member;
- wherein the ultracapacitor and the portable power appliance are separate from the portable charging unit.
6 more elements
A portable charging unit electrically connectable to a mains power supply, the portable charging unit comprising:
- (a) a hand carriable battery charger body;
- (b) an onboard energy storage member;
- (c) a power output circuit, which in operation is electrically connected to the onboard energy storage member;
- and,
- (d) a thermal cooling unit which in operation is thermally connected to at least one of the onboard energy storage member and an appliance energy storage member for a portable power appliance, wherein the thermal cooling unit is operable to cool the appliance energy storage member when the thermal cooling unit is thermally connected to the appliance energy storage member;
- wherein
- the appliance energy storage member is removably electrically connectable to the portable charging unit;
- in an onboard energy storage member charging mode, the portable charging unit is electrically connected to the mains power supply and, the battery charger is operable to charge the onboard energy storage member using power from the mains power supply;
- and
- in an appliance energy storage member charging mode, the onboard energy storage member is electrically connected to the power output circuit and the appliance energy storage member is also electrically connected to the power output circuit, whereby the charging unit is operable to charge the appliance energy storage member by discharging stored energy from the onboard energy storage member to the appliance energy storage member.
7 more elements
A kit comprising:
- (a) a portable power appliance comprising a motor and an appliance energy storage member electrically connectable to the motor;
- (b) a hand carriable battery charger electrically connectable to a mains power supply, the hand carriable battery charger comprising:
- i) an onboard energy storage member electrically connectable to the battery charger;
- and,
- ii) a power output circuit having an appliance electrical port that is electrically connectable to the appliance energy storage member;
- wherein
- in an onboard energy storage member charging mode, the battery charger is electrically connected to the mains power supply, the battery charger is operable to charge the onboard energy storage member using power from the mains power supply;
- and,
- when in the appliance energy storage charging mode, the appliance energy storage member is electrically connected to the appliance electrical port and the appliance energy storage member is also electrically connected to the power output circuit, whereby the battery charger is operable to charge the appliance energy storage member by discharging stored energy from the onboard energy storage member to the appliance energy storage member.
6 more elements
Dependencies are inferred from the claim text.