The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 21, 2021
Filed:
Sep. 16, 2019
Andreas Stihl Ag & Co. KG, Waiblingen, DE;
Daniel Wagner, Winterbach, DE;
Markus Herrmann, Fellbach, DE;
Alexander Nordmann, Stuttgart, DE;
Joachim Kolb, Ludwigsburg, DE;
Andreas Stihl AG & Co. KG, Waiblingen, DE;
Abstract
A rechargeable battery pack includes an external housing with a housing base and a housing hood, connected to the housing base and surrounding an interior space, and a rechargeable battery cell block arranged in the interior space. The battery pack has a water discharge structure for discharging water contained in the interior space and/or water entering the external housing from the outside. The water discharge structure has, on one side of the external housing, a double-labyrinth wall structure which is open to liquid. An outer labyrinth wall structure is formed by overlapping respectively of an outer side wall of the housing base and housing hood. An inner labyrinth wall structure, which is arranged offset in relation to the outer labyrinth wall structure in the direction of the interior space, is formed by overlapping respectively of an inner side wall of the housing base and housing hood.