Receiver assembly comprising an armature and a diaphragm

Patent metadata

Field	Value
Publication number	US-10721566-B2
Application number	US-201815989302-A
Country	US
Kind code	B2
Filing date	May 25, 2018
Priority date	May 26, 2017
Publication date	Jul 21, 2020
Grant date	Jul 21, 2020

Abstract

The present invention provides a receiver assembly. The receiver assembly comprises a receiver housing comprising a first housing part and a second housing part. The receiver housing defines an inner space, and the first housing part and the second housing part are movable relative to each other to define an open configuration and a closed configuration. The receiver assembly further comprises an armature extending in a first direction in the inner space, and a diaphragm operationally attached to the armature via a drive pin extending in a second direction, where the first and second directions are different. The drive pin and the armature are formed in one part. A circumferential edge part of the diaphragm is arranged in a joint between the first housing part and the second housing part in the closed configuration.

First claim

The invention claimed is:

1. A receiver assembly comprising:
a receiver housing comprising a first housing part and a second housing part, the receiver housing defining an inner space, wherein the first housing part and the second housing part are movable relative to each other to define an open configuration and a closed configuration,
an armature extending in a first direction in the inner space,
a diaphragm operationally attached to the armature via a drive pin extending in a second direction, the first and second directions being different,
wherein the drive pin and the armature are formed in one part,
wherein a circumferential edge part of the diaphragm is arranged in a joint between the first housing part and the second housing part in the closed configuration, and
wherein the armature has a width being perpendicular to the first direction and along the first direction, the width of the armature being at least twice a width of the drive pin.

2. A receiver assembly according to claim 1 , further comprising a magnet assembly configured to provide a magnetic field in a gap, wherein the armature extends in the first direction in the gap.

3. A receiver assembly according to claim 1 , wherein the drive pin and the armature comprises a bent transition portion, the armature extending in the first direction from the transition portion and the drive pin extending in the second direction from the transition portion.

4. A receiver assembly according to claim 1 , wherein the armature has a thickness being perpendicular to the first direction and transverse to first direction, the thickness of the armature being at least 20 percent larger than a thickness of the drive pin.

5. A receiver assembly according to claim 1 , wherein the drive pin and the armature comprises a bent transition portion, the armature extending in the first direction from the transition portion and the drive pin extending in the second direction from the transition portion, and wherein the armature comprises a first tapered section, whereby the width of the armature decreases toward the transition portion.

6. A receiver assembly according to claim 1 , wherein the drive pin and the armature comprises a bent transition portion, the armature extending in the first direction from the transition portion and the drive pin extending in the second direction from the transition portion, and wherein the armature comprises a second tapered section, whereby the thickness of the armature decreases toward the transition portion.

7. A receiver assembly according to claim 1 , wherein the drive pin comprises a bent section.

8. A receiver assembly according to claim 1 , further comprising a second drive pin.

9. A receiver assembly according to claim 1 , wherein at least one of the first housing part and the second housing part comprises at least one depression formed at an edge portion to form an opening between the first housing part and the second housing part in the closed configuration.

10. A receiver assembly according to claim 1 , further comprising an acoustical venting opening connecting the inner space to an exterior volume outside the receiver housing, wherein the acoustical venting opening forms an acoustical passage at least through the diaphragm.

11. A receiver assembly comprising:
a receiver housing comprising a first housing part and a second housing part, the receiver housing defining an inner space, wherein the first housing part and the second housing part are movable relative to each other to define an open configuration and a closed configuration,
an armature extending in a first direction in the inner space,
a diaphragm operationally attached to the armature via a drive pin extending in a second direction, the first and second directions being different,
wherein a circumferential edge part of the diaphragm is arranged in a joint between the first housing part and the second housing part in the closed configuration, and
wherein the armature has a width being perpendicular to the first direction and along the first direction, the width of the armature being at least twice a width of the drive pin.

12. A personal audio device comprising a receiver assembly according to claim 1 .

13. A method of assembling a receiver assembly according to claim 1 , the method comprising the steps of:
providing a receiver housing, the receiver housing comprising a first housing part and a second housing part, the receiver housing defining an inner space, wherein the first housing part and the second housing part are movable relative to each other to define an open configuration and a closed configuration,
providing a magnet assembly configured to provide a magnetic field in an air gap,
providing an integral unit forming an armature and a drive pin, the integral unit being formed in one piece,
providing a diaphragm,
arranging the integral unit so that at least a part of the armature extends in a first direction in the air gap,
bending the integral unit to form a bent transition portion, so that the armature extends in the first direction from the transition portion and the drive pin extends in a second direction from the transition portion, the first and second directions being different,
arranging a circumferential edge part of the diaphragm along an edge portion of one of the first housing part and the second housing part, and
joining the first housing part and the second housing part so that the circumferential edge portion of the diaphragm is located in a joint between the first housing part and the second housing part,
wherein the armature has a width being perpendicular to the first direction and along the first direction, the width of the armature being at least twice a width of the drive pin.

14. A personal audio device comprising a receiver assembly according to claim 11 .

15. A receiver assembly according to claim 2 , wherein the drive pin and the armature comprises a bent transition portion, the armature extending in the first direction from the transition portion and the drive pin extending in the second direction from the transition portion.

16. A receiver assembly according to claim 5 , wherein the drive pin and the armature comprises a bent transition portion, the armature extending in the first direction from the transition portion and the drive pin extending in the second direction from the transition portion, and wherein the armature comprises a second tapered section, whereby the thickness of the armature decreases toward the transition portion.

Assignees

• Sonion Nederland Bv

Inventors

• Tjepkema Mattijs
• Hijman Jan
• van der Beek Gerardus Johannes Franciscus Theodorus
• Groffen Camiel Eugène
• Kaszuba Tomasz
• Bialy Krzysztof
• Kurpiel Grzegorz

Classifications

• H04R9/027 Primary

  Air gaps using a magnetic fluid · CPC title

• H04R25/60 Primary

  Mounting or interconnection of hearing aid parts, e.g. inside tips, housings or to ossicles (ear wax retarders, e.g. mounting thereof H04R25/654) · CPC title

• H04R11/02

  Loudspeakers · CPC title

• H04R7/16

  Mounting or tensioning of diaphragms or cones · CPC title

• H04R31/003

  for diaphragms or their outer suspension · CPC title