Cable drum for supplying energy to an electrically operated utility vehicle
AssigneeDeere & Company
InventorsVolker Kegel, Nicolai Tarasinski, Julian Daubermann, Philipp Lehmann, Simon Pfaffmann
Life of this patent
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Abstract
A cable drum for supplying energy to an electrically operated utility vehicle includes an axially extending winding body, a winding drive for rotatably driving the winding body for reeling-up or unreeling an electric line, a spacing means for segmenting a winding layer reeled-up onto the winding body, and an air conveying means for generating cooling air through a passage region. The cooling air flows outward of the interior of the winding body. The passage region is kept clear between adjacent segments of the winding layer.
Claims19
A cable drum for supplying energy to an electrically operated utility vehicle, comprising:
- an axially extending winding body;
- a winding drive for rotatably driving the winding body for reeling-up or unreeling an electric line;
- a spacing means for segmenting a winding layer reeled-up onto the winding body;
- and
- an air conveying means for generating cooling air through a passage region;
- wherein, the cooling air flows outward of the interior of the winding body;
- wherein, the passage region is kept clear between adjacent segments of the winding layer;
- and
- wherein a control unit effects the cooling air flow by closed-loop control of the rotational speed of the air conveying means via an estimation of a volumetric flow requirement based on an electrical property and a thermal property of the electric line, including a line resistivity and a thermal coefficient, a wound state of the cable drum obtained from a rotary position sensor, and an ambient temperature sensed by means of a temperature sensor.
A cable drum for supplying energy to an electrically operated utility vehicle, comprising:
- an axially extending winding body;
- a winding drive for rotatably driving the winding body for reeling-up or unreeling an electric line;
- a spacing means for segmenting a winding layer reeled-up onto the winding body;
- an air conveying means for generating cooling air through a passage region;
- and
- a control unit for controlling the winding drive in combination with the positioning means such that, by coordination of the rotation of the winding body with the axial displacement of the cable guide, the electric line is reeled-up orthocyclically onto the winding body;
- wherein, the cooling air flows outward of the interior of the winding body;
- wherein, the passage region is kept clear between adjacent segments of the winding layer;
- and
- wherein the cable drum comprises a cable guide being axially displaceable by means of a positioning means for reeling-up and unreeling the electric line.
A cable drum for supplying energy to an electrically operated utility vehicle, comprising:
- an axially extending winding body;
- a winding drive for rotatably driving the winding body for reeling-up or unreeling an electric line;
- a spacing means for segmenting a winding layer reeled-up onto the winding body;
- and
- an air conveying means for generating cooling air through a passage region;
- wherein, the cooling air flows outward of the interior of the winding body;
- wherein, the passage region is kept clear between adjacent segments of the winding layer;
- wherein, the cable guide comprises a sensor means for sensing a lateral deviation of the electric line from a winding direction to be maintained;
- and
- wherein, the control unit, upon identification of an inadmissible lateral deviation of the electric line, is configured to initiate a correcting movement of the cable guide by controlling the positioning means or partially reeling back the electric line by controlling the electric winding drive in order to remedy a mis-winding.
Dependencies are inferred from the claim text.