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Hearing aids and hearing aid charging systems

A charging system and hearing aid technology, which is applied to hearing aids, hearing aid shells, circuits, etc., can solve the problems of complex structure and damaged waterproofness, and achieve the effect of simplified structure and improved waterproofness

Active Publication Date: 2020-04-17
NITTO DENKO CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, in the above-mentioned conventional hearing aids, a structure for taking in air is required in order to continue the discharge of the air battery, so there is also a problem that the structure is easily complicated or that the waterproofness is impaired.

Method used

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  • Hearing aids and hearing aid charging systems
  • Hearing aids and hearing aid charging systems
  • Hearing aids and hearing aid charging systems

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0047] (Hearing aid 6: overall structure)

[0048] like figure 1 As shown, the hearing aid according to this embodiment has: a secondary battery 3 whose nominal voltage exceeds the nominal voltage of the air battery; a drive unit 5 which operates by using electric power supplied from the secondary battery 3; a charging unit 112, It supplies DC power at a predetermined voltage to the secondary battery 3 ; and the transformer unit 124 outputs the charging power of the secondary battery 3 to the driving unit 5 at a voltage suitable for the operation of the driving unit 5 .

[0049] Here, the "nominal voltage" is a value determined as an estimated value of the voltage between terminals obtained when the battery is used in a normal state, and in a battery that is close to full charge, a value higher than the nominal voltage is obtained. However, in the case of discharging or supplying a large current to the load, the terminal voltage becomes lower than the nominal voltage. The n...

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PUM

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Abstract

The present invention relates to a hearing aid and a charging system for the hearing aid, which can simplify the structure and improve the waterproofness while avoiding frequent battery replacement work even if the power consumption is high. The hearing aid has: a secondary battery (3) whose nominal voltage exceeds the nominal voltage of an air battery; a drive unit (5) which operates with electric power supplied from the secondary battery (3); a charging unit (112) whose supplying direct current power to the secondary battery (3) at a predetermined voltage; ) output.

Description

technical field [0001] The present invention relates to a hearing aid and a hearing aid charging system which utilizes the power of a secondary battery to operate. Background technique [0002] Generally, hearing aids are equipped with an air battery having a high energy density as a power source in order to realize miniaturization and weight reduction. Therefore, conventional hearing aids have a structure for taking in external air, and include a drive unit that operates at a voltage of 1.2 V, which is an output voltage of an air battery (Patent Document 1, Patent Document 2). [0003] Patent Document 1: Japanese Patent Laid-Open No. 2012-191546 [0004] Patent Document 2: Japanese PCT Publication No. 2002-506335 Contents of the invention [0005] The problem to be solved by the invention [0006] However, in the above-mentioned conventional hearing aids, the power of the air battery is consumed in a short period of time when the power consumption increases with the i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04R25/00H02J7/00H04R25/02
CPCH04R2225/31H02J7/0044H04R25/607H02J50/12Y02E60/10H04R25/556H04R25/602H02J50/80H01M10/0525H04R25/65H04R2225/33
Inventor 畑中武蔵津田尚
Owner NITTO DENKO CORP
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