Microphone for a hearing aid
A microphone assembly having a housing, a transducer, and an electronic circuit. The housing has an opening, and the transducer is disposed within that opening. The electronic circuit covers the opening such that the transducer is surrounded by at least the electronic circuit and the housing. The electronic circuit includes a substrate and an amplifier for amplifying the electrical signal into an amplified electrical signal which is coupled to a connection means. The connection means provides a direct electrical connection between the electronic circuit and a receiver. The amplifier is mounted on the substrate and disposed on a side of the substrate of the electronic circuit facing the transducer. The receiver is disposed on a side opposite the side and outside the housing.
1. A microphone for a hearing aid, comprising:
a housing including entrance means for letting pass sound waves into the housing and an electronic circuit;
transducer means for converting the sound waves into an electrical signal; and
connecting means for connecting amplifier means with terminals of a battery and for coupling the output signal of the amplifier means to a receiver of the hearing aid, the electronic circuit producing a signal that is transmitted directly to the receiver, and the connecting means including fixed spring biased connections for providing a solderless contact between the amplifier means and the battery terminals, wherein the entrance means is formed at least partially by openings that are provided in a removable cover that covers a battery holder, in a bottom of the battery holder, and in a wall of the housing facing the bottom.
2. The microphone according to claim 1 , wherein the electronic circuit includes active components, all of which are formed in a single integrated circuit.
3. A hearing aid, comprising:
a battery in a battery holder, the battery including battery terminals;
a receiver; and
a microphone comprising:
a housing including entrance means for letting pass sound waves into the housing and an electronic circuit,
transducer means for converting the sound waves into an electrical signal, and
connecting means for connecting amplifier means with terminals of a battery and for coupling the output signal of the amplifier means to a receiver of the hearing aid, the electronic circuit producing a signal that is transmitted directly to the receiver, and the connecting means including fixed spring biased connections for providing a solderless contact between the amplifier means and the battery terminals, wherein the entrance means is formed by openings that are provided in a removable cover, in a bottom of the battery holder, and in the wall of the housing facing the bottom.
4. The hearing aid according to claim 3 , wherein the entrance means includes the battery holder.