Hearing aid with speaker unit assembly

1. A hearing aid comprising:

a behind-the-ear housing comprising a housing connector, the behind-the-ear housing including an input transducer configured to convert acoustic sound into an electrical signal, the behind-the-ear housing comprising a processor configured to process the electrical signal in accordance with a hearing loss of a user,

a detachable speaker unit having a speaker unit connector configured to mate with the housing connector, the detachable speaker unit comprising an output transducer arranged in an in-the-ear housing,

wherein the speaker unit connector comprises a first plurality of electrical contacts distributed at two inner surfaces of a speaker unit connector cavity,

wherein the housing connector comprises a second plurality of housing connector contacts arranged in a housing connector cavity, the housing connector contacts extending into the housing connector cavity, the housing connector cavity and speaker unit connector electrical contacts configured to establish electrical contact when the speaker unit connector and the housing connector are in mechanical connection, and

a loop structure formed at an outer surface of the housing connector and shaped to contact a protruding structure on an outer surface of the speaker unit connector,

wherein the housing connector cavity comprises a first protrusion extending into the housing connector cavity, and the speaker unit connector comprises a track mating the first protrusion.

2. The hearing device according to claim 1 , wherein housing connector comprises a centrally positioned part extending into the housing connector cavity and wherein the second plurality of housing connector contacts are arranged at the centrally positioned part, the centrally positioned part configured to be received in the speaker unit connector cavity.

3. The hearing device according to claim 1 , wherein the housing connector cavity comprises a second protrusion extending into the housing connector cavity and the speaker unit connector comprises a second track mating the second protrusion, the first protrusion and the second protrusion arranged at a first side of the housing connector cavity.

4. The hearing device according to claim 3 , wherein the housing connector cavity has a rectangular cross-section geometry and the first protrusion and the second protrusion are arranged at respective corners of a long side of the rectangular cross-section geometry.

5. The hearing device according to claim 1 , wherein the speaker unit connector is provided with a gasket or sealing arranged to contact a surface of the housing connector in a mounted state.

6. The hearing device according to claim 1 , wherein the protruding structure of the speaker unit connector is a snap ridge configured to receive the loop structure, being a snap arm, formed on the housing connector.

7. The hearing device according to claim 1 , wherein the first plurality and the second plurality are equal or, alternatively, wherein the first plurality and the second plurality are not equal.

8. The hearing device according to claim 1 , wherein the first plurality and the second plurality is an even number or, alternatively, wherein the first plurality and the second plurality is an uneven number.

9. The hearing device according to claim 1 , wherein the speaker unit connector comprises an electrical component.

10. The hearing device according to claim 1 , wherein the in-the-ear housing comprises a second input transducer.

11. The hearing device according to claim 1 , wherein

the loop structure is a first loop structure of the housing connector, and the protruding structure is a first protruding structure of the speaker unit connector,

the housing connector comprises a second loop structure arranged at an opposite side of the first loop structure and the speaker unit connector comprises a second protruding structure arranged opposite the first protruding structure and shaped to contact the second loop structure.

12. A detachable speaker unit assembly having a speaker unit connector configured to mate with a housing connector of a behind-the-ear hearing aid housing BTE, said housing connector including a housing connector cavity,

the detachable speaker unit comprising:

an output transducer arranged in an in-the-ear housing ITE,

wherein the speaker unit connector comprises a first plurality of electrical contacts distributed at two inner surfaces of a speaker unit connector cavity, and

a protruding structure formed on an outer surface of the plug housing of the speaker unit connector and shaped to contact a loop structure formed at an outer surface of the housing connector of the behind the ear housing BTE,

wherein the housing connector cavity comprises a protrusion extending into the housing connector cavity, and the speaker unit connector comprises a track mating the protrusion.

13. The detachable speaker unit assembly according to claim 12 , wherein a multitude of electrical conductors are connected to a substrate in the speaker unit connector, and wherein the multitude of electrical conductors are assembled in a cable structure electrically and mechanically connecting the speaker unit connector with the in-the-ear housing.

14. The detachable speaker unit assembly according to claim 12 , further comprising a sensor arranged in the in-the-ear housing.

15. The hearing device according to claim 2 , wherein the speaker unit connector is provided with a gasket or sealing arranged to contact a surface of the housing connector in a mounted state.

16. The hearing device according to claim 3 , wherein the speaker unit connector is provided with a gasket or sealing arranged to contact a surface of the housing connector in a mounted state.

17. The hearing device according to claim 4 , wherein the speaker unit connector is provided with a gasket or sealing arranged to contact a surface of the housing connector in a mounted state.