Power autonomous portable electric tool set
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Accused Products
Abstract
A power autonomous tool set, for example, pruning scissors, a saw, a fruit picking tool, lawnmower, bush cutter, hedge cutter, impact spanner, pneumatic hammer, comprising at least three distinct functional sub-units, i.e. a first sub-unit handling mechanical operation of the tool by means of an electric actuator; a second sub-set making up the energy source for the set and essentially comprising a rechargeable electrochemical battery; a third charger sub-set which can carry out electrical recharging of the electrochemical battery of the second sub-unit. The invention is characterized in that the first sub-unit (2) is connected, at least during the use of said tool, to the second sub-unit (3) by a flexible electric cord (6) and in that the electric supply of the actuator which constitutes it can be automatically disconnected and/or at will by the operator; the second sub-unit (3) is portable, is provided with a lithium-ion or lithium polymer battery formed by association of a series of cells, each cell comprising one element or several associated parallel elements and one or several electric or electronic control modules or management modules for said battery, whereby said modules are located close to the battery; the third charger sub-unit (4) consists of at least one electric supply source whose voltage and current are adapted to recharging the lithium-ion or lithium polymer (5) battery, said third sub-unit being electrically linked to the second sub-unit by means of a disconnectable flexible cord.
56 Citations
83 Claims
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1-42. -42. (canceled)
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43. Power autonomous portable electric tool set, such as, for example, pruning scissors, a saw, a fruit picking tool, lawnmowers, a bush cutter, a hedge cutter, an impact spanner, a pneumatic hammer, comprising at least three distinct functional sub-units, namely, a first sub-unit (2) generating the mechanical operation of the tool by means of an electric actuator connected by an electric flexible cord (6), at least during use of the tool, to a second portable sub-unit (3) forming the electric energy source of the set and essentially including a rechargeable electrochemical battery, a third charger sub-unit (4) electrically connected to the second sub-unit by a disconnectable flexible cord (10) during the charging and capable of carrying out the electrical recharging of the electrochemical battery of the second sub-unit, characterized in that the electric supply of the actuator of the first sub-unit can be cutoff automatically when the battery reaches a voltage threshold that is harmful to its functioning;
- the second sub-unit (3) is provided with a lithium-ion or lithium polymer battery formed by association of a series of cells, each cell comprising one element or a plurality of associated parallel elements, on the one hand, and with one or a plurality of electric or electronic modules for managing the battery, capable of carrying out the function of protecting the battery against excess current, this module or these modules being located in the vicinity of said battery;
the third sub-unit (4) comprises at least one electric supply source, the voltage and current of which are adapted to recharging the lithium-ion or lithium polymer battery (5). - View Dependent Claims (44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83)
- the second sub-unit (3) is provided with a lithium-ion or lithium polymer battery formed by association of a series of cells, each cell comprising one element or a plurality of associated parallel elements, on the one hand, and with one or a plurality of electric or electronic modules for managing the battery, capable of carrying out the function of protecting the battery against excess current, this module or these modules being located in the vicinity of said battery;
Specification