Dual antenna system for charging one or more hearing aids
A technology for hearing aids and antennas, applied in hearing aids, hearing aid testing/monitoring, antennas, etc., can solve the problem of space occupied by hearing aids, and achieve the effect of simple control and simple methods
Active Publication Date: 2019-11-05
SIEMENS AG
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- Abstract
- Description
- Claims
- Application Information
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Problems solved by technology
If two planes are to be used, a dedicated antenna for the second plane must also be used in the hearing aid itself, which in turn requires a certain amount of space in the hearing aid
Method used
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Embodiment Construction
[0023] The examples described in detail below are all preferred implementations of the present invention.
[0024] as combined figure 1 As shown by way of example, the hearing aid should be wirelessly charged. Such hearing aids have a linearly polarized antenna, eg in the form of a linear coil. To charge, power is inductively coupled to the figure 1 This coil is not shown in the This is only possible if a component of the alternating magnetic field passes through the charging coil.
[0025] There should be no fixed charging position specified in the charging facility in order to simplify operation. It is therefore not possible to ensure in which direction the linearly polarized receiving antenna of the hearing aid to be charged is pointing. According to the invention, therefore, the magnetic field in the charging region of the charging device has a time-varying spatial direction component. In particular, the two spatial orientations of the plane should be generated by th...
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Charging your hearing aids should be done in a comfortable way. There is therefore provided a charging device for wirelessly charging a hearing aid, the charging device having a cylindrical container, an antenna (1) for generating an alternating magnetic field in the container under electrical excitation, and a device for charging the antenna Charging circuits for electrical activation (9 to 12 and 14 to 16). The antenna (1) is configured as a birdcage antenna, wherein the rods (2) are arranged on the cylindrical housing parallel to the cylinder axis, and the ends of the rods (2) are respectively connected to end rings (3, 4) at the edges of the cylindrical housing , and the antenna is integrated into the container. A switching element (6) is respectively arranged in each rod (2) of the antenna. A circular magnetic field in which the switching element (6) operates in closed-circuit mode and a linear magnetic field in which the switching element operates in open-circuit mode can be alternately generated in the antenna by means of the charging circuit.
Description
technical field [0001] The invention relates to a charging device for wireless charging of at least one hearing aid, said charging device having a cylindrical container, an antenna for generating an alternating magnetic field in the container under electrical excitation, and capable of charging the antenna Electrically activated charging circuit. Furthermore, the invention relates to a method for wirelessly charging at least one hearing aid. Background technique [0002] Hearing aids are portable hearing aids used to provide hearing assistance to hard of hearing people. In order to meet numerous individual requirements, hearing aids are available in different designs, such as hearing aids behind the ear (HdO), hearing aids with external receiver (RIC: receiver in the canal, receiver in the canal) and hearing aids in the ear (IdO), e.g. Also known as external ear hearing aids or ear canal hearing aids (ITE, CIC). The listed hearing aids can be worn on the outer ear or in t...
Claims
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IPC IPC(8): H04R25/00
CPCH02J50/10H02J7/0044H04R2225/31H01Q1/273H04R25/30H04R25/554H02J50/005H02J50/402
Inventor S·马蒂厄斯B·西维洛
Owner SIEMENS AG