US 11,659,339 B2
Battery module and hearing device
Nishshanka Bandara Narampanawe, Singapore (SG); Heng Goh Yap, Singapore (SG); Anand Ganapathy, Singapore (SG); Ruban Sundara Raj Thasapparaj, Salem Tamil Nadu (IN); and Gee Heng Ler, Penang Malaysia (MY)
Assigned to Sivantos Pte. Ltd., Singapore (SG)
Filed by Sivantos Pte. Ltd., Singapore (SG)
Filed on Apr. 23, 2021, as Appl. No. 17/238,442.
Claims priority of application No. 102020205157.7 (DE), filed on Apr. 23, 2020.
Prior Publication US 2021/0337319 A1, Oct. 28, 2021
This patent is subject to a terminal disclaimer.
Int. Cl. H04R 25/00 (2006.01); H02J 50/10 (2016.01); H02J 7/00 (2006.01)
CPC H04R 25/30 (2013.01) [H02J 7/0044 (2013.01); H02J 50/10 (2016.02); H04R 2225/31 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A battery module for a hearing device, the battery module comprising:
a secondary cell having a positive potential and a negative potential;
two contact elements, including a contact element for making contact with the positive potential of said secondary cell and a contact element for making contact with the negative potential of said secondary cell;
a fuse arranged in close vicinity of said contact element for making contact with the positive potential;
a copper jacket surrounding said secondary cell;
a ferrite jacket arranged on an outside of said copper jacket;
an induction coil arranged on an outside of said ferrite jacket, said induction coil being configured to inductively receive energy;
a resonant capacitor connected to said induction coil in close vicinity of said induction coil; and
a thermistor for monitoring a cell temperature, said thermistor being electrically insulated with respect to said secondary cell but thermally coupled to said secondary cell with low thermal resistance for heat transfer between said secondary cell and said thermistor.