Charging system and charging device for a hearing device

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AI technical title is built by Patsnap AI team. It summarizes the technical point description of the patent document.
By designing coaxially oriented primary and secondary charging windings and a magnetic layer in the ITE hearing aid, the problem of high charging loss in the ITE hearing aid was solved, and efficient inductive charging was achieved.

CN114498806BActive Publication Date: 2025-12-09SIVANTOS PTE LTD

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Patent Information

Application Number: CN202111239328.5
Authority / Receiving Office: CN · China
Patent Type: Patents(China)
Current Assignee / Owner
Priority Date: 2020-10-23
Filing Date: 2021-10-25
Publication Date: 2025-12-09
Estimated Expiration: 2041-10-25

Application Information

Patent Timeline

23 Oct 2020

Priority

25 Oct 2021

Application

CN202111239328.5

09 Dec 2025

Publication

CN114498806B

IPC: H02J7/00; H02J50/10; H02J50/00; H04R25/00

CPC: H02J50/10; H02J50/005; H04R25/602; H04R2225/025; H04R2225/31; H02J7/70; H04R25/60; H04R25/55

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Application Domain

Batteries circuit arrangements In the ear hearing aids

Technology Topics

Interior space Hearing apparatus

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AI Technical Summary

Technical Problem

Existing technologies make it difficult to achieve efficient inductive charging with a simple structure in ITE hearing aids, resulting in high charging losses.

Method used

Design a charging device and hearing device system, wherein the hearing device has a secondary charging winding, the charging device has a primary charging winding and a magnetic layer, effective coupling is ensured through coaxial orientation design, and magnetic field lines are guided by the primary and secondary magnetic layers to reduce losses.

Benefits of technology

It achieves efficient inductive charging for ITE hearing aids, reducing charging losses and improving energy transmission efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention relates to a charging system (2) having a charging device (4) and a hearing device (6), wherein the hearing device (6) has a partial region (26) of the front in which a secondary charging winding (36) is arranged. The charging device (4) has a charging housing (8) which has an accommodation space (18) which extends in the longitudinal direction (12) along a central axis (10) and which has an opening (16) at least to one side in the longitudinal direction (12). Furthermore, the charging device (4) has a primary charging winding (20) which is designed in a ring around the central axis (10) and which surrounds an inner space (22). The hearing device (6) can be inserted into the inner space (22) with the partial region (26) of the front. The secondary charging winding (36) is wound around a component, in particular an earpiece (34). Furthermore, at least one magnetic layer, namely a primary magnetic layer (44), is arranged around the primary charging winding (20) and / or a secondary magnetic layer (38) is arranged between the component and the secondary charging winding (36). Efficient charging is thereby facilitated.

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