RECHARGEABLE BATTERY PACK

• US 20130328524A1
• Filed: 06/06/2013
• Published: 12/12/2013
• Est. Priority Date: 06/06/2012
• Status: Abandoned Application

• Current Assignee: Sivantos Pte. Ltd. (WS Audiology A/S)
• Original Assignee: Siemens AG, Siemens Medical Instruments Pte Ltd (WS Audiology A/S)
• Inventors: NAUMANN, FRANK, GEBERT, ANTON, BARTULEC, ROMAN, KOCH, FRANK, SEIWOLO, BENJAMIN, WEYDANZ, WOLFGANG, RABBERS, JACOB JOHAN
• Application Number:
  US13/911,253
• Publication Number:
  US 20130328524A1
• Time in Patent Office: Days
• US Class Current: 320/108
• CPC Class Codes: H02J 50/10 using inductive coupling
• CPC Class Codes: H02J 50/80 involving the exchange of data, concerning supply or distribution of electric power, between transmitting devices and receiving devices
• CPC Class Codes: H02J 7/00302 Overcharge protection
• CPC Class Codes: H02J 7/00306 Overdischarge protection
• CPC Class Codes: H02J 7/02 for charging batteries from ac mains by converters
• CPC Class Codes: H04R 2225/31 Aspects of the use of accumulators in hearing aids, e.g. rechargeable batteries or fuel cells
• CPC Class Codes: H04R 25/75 Electric tinnitus maskers providing an auditory perception

Abstract

A rechargeable battery pack, or accumulator pack, for instance for a hearing instrument, has a minimal installation size and high energy density. The accumulator pack has at least one rechargeable battery cell, charging electronics, signal electronics, and signal contacts. An encapsulation protects against moisture and contamination. The signal electronics transforms an output voltage of the battery cell into a predetermined voltage, which is made available by two signal contacts outside of the encapsulation. The transformation of the voltage enables the battery systems to be used with various battery and/or cell voltages. Li-ion battery systems, which generally operate with 3.7 volts, can thus also be used in hearing instruments, which generally operate with an operating voltage of 1.2 volts. The encapsulation of the accumulator pack is particularly advantageous in this context of the higher voltages.

Claims

1. An accumulator pack, comprising:

at least one rechargeable battery cell and charging electronics for charging said at least one battery cell;

signal electronics connected to said at least one rechargeable battery cell and configured for transforming an output voltage of the battery cell into a predetermined supply voltage and outputting the supply voltage;

an encapsulation for protecting against contamination and a penetration of moisture; and

at least two signal contacts connected to said signal electronics and disposed to output the supply voltage made available by said signal electronics outside of said encapsulation.

2. The accumulator pack according to claim 1, wherein said at least one battery cell, said charging electronics and said signal electronics are arranged in a surface adjacent to one another so as to adhere to a predetermined maximum height of the accumulator pack.

3. The accumulator pack according to claim 1, which further comprises an areally extended antenna for wirelessly receiving energy, and wherein said at least one battery cell is an areally extended structure and said antenna and said at least one battery cell are arranged one above another.

4. The accumulator pack according to claim 3, which comprises electrical antenna contacts connecting said antenna to said charging electronics and wherein said electrical antenna contacts and said antenna are arranged adjacent one another in a plane.

5. The accumulator pack according to claim 3, which comprises an electrical battery contact connecting said at least one rechargeable battery cell to said charging electronics, and wherein said electrical battery contact and said antenna are arranged adjacent one another in a plane.

6. The accumulator pack according to claim 3, which comprises a shield against electromagnetic signals, said shield including an areally extending section disposed between said antenna and said at least one battery cell, and a section connecting thereto and extending at right angles to said areally extending section and arranged laterally around said at least one battery cell.

7. The accumulator pack according to claim 1, wherein the assembly is assembled at least partially using MID technology.