Hybrid ring-radiator headphone driver

Patent metadata

Field	Value
Publication number	US-9686604-B2
Application number	US-201514722797-A
Country	US
Kind code	B2
Filing date	May 27, 2015
Priority date	May 27, 2014
Publication date	Jun 20, 2017
Grant date	Jun 20, 2017

Abstract

A system and method for a hybrid ring-radiator headphone driver, substantially as shown in and/or described in connection with at least one of the figures, as set forth more completely in the claims.

First claim

What is claimed is:

1. A hybrid headphone driver comprising: a frame; a center radiator comprising: an inner magnet; and an inner coil that moves in relation to the inner magnet; a ring radiator comprising: a ring-shaped outer magnet that encircles the inner magnet; and an outer coil that moves in relation to the outer magnet; and at least one diaphragm coupled to the inner coil and to the outer coil, wherein the at least one diaphragm comprises a single diaphram that is coupled to both the inner coil and the outer coil.

2. The hybrid headphone driver of claim 1 , wherein the outer magnet comprises a slot in which the outer coil moves.

3. The hybrid headphone driver of claim 2 , wherein the outer magnet comprises an inner radius and an outer radius, and the slot is located at a radius other than a midpoint between the inner radius and the outer radius.

4. The hybrid headphone driver of claim 1 , wherein the inner magnet and the outer magnet each have a respective center hole.

5. The hybrid headphone driver of claim 1 , wherein the frame comprises a planar back side.

6. The hybrid headphone driver of claim 1 , wherein: the frame comprises at least one ring that separates the inner magnet from the outer magnet.

7. The hybrid headphone driver of claim 1 , wherein the center radiator comprises a magnet cup; the inner magnet is positioned inside the magnet cup; and the inner coli moves in a slot between the inner magnet and the magnet cup.

8. The hybrid headphone driver of claim 1 , wherein the center radiator and the ring radiator each comprise same respective effective radiating areas.

9. The hybrid headphone driver of claim 1 , comprising a second ring radiator comprising a second ring-shaped magnet that encircles the inner magnet and is encircled by the outer magnet.

10. The hybrid headphone driver of claim 1 , wherein at least one of the inner magnet and the outer magnet comprises vent holes.

11. The hybrid headphone driver of claim 1 , wherein the center radiator and the ring radiator each comprise similar respective Theil/Small parameters.

12. A hybrid headphone comprising:
a frame;
a center radiator comprising:
a magnet cup;
an inner magnet inside the magnet cup; and
an inner coil that moves in a slot between the inner magnet and the magnet cup;

a ring radiator comprising:
a ring-shaped outer magnet that encircles the inner magnet; and
an outer coil that moves in relation to the outer magnet; and

at least one diaphragm coupled to the inner coil and to the outer coil.

13. The hybrid headphone driver of claim 12 , wherein the frame comprises a center hole in which the magnet cup is located.

14. The hybrid headphone driver of claim 13 , wherein the inner magnet comprises a center hole, and the magnet cup comprises a center hole aligned with the center hole of the inner magnet.

15. A hybrid headphone driver comprising:
a center radiator comprising:
an inner magnet; and
an inner coil that moves in relation to the inner magnet;

a ring radiator comprising:
a ring-shaped outer magnet that encircles the inner magnet; and
an outer coil that moves in relation to the outer magnet;

at least one diaphragm coupled to the inner coil and to the outer coil; and
a frame that comprises a first ring and a second ring, where the first ring defines a center chamber for the center radiator, and the first and second rings define a ring chamber for the ring radiator.

16. The hybrid headphone driver of claim 15 , wherein the frame comprises a third ring that defines a circular region in which the inner magnet is located.

17. The hybrid headphone driver of claim 15 , wherein the frame comprises first holes for providing air flow to and from the center chamber, and second holes for providing air flow to and from the ring chamber.

18. The hybrid headphone driver of claim 15 , wherein the second ring comprises a shelf for seating a diaphragm of the at least one diaphragm.

19. The hybrid headphone driver of claim 15 , wherein:
the frame comprises a back side;
the first ring extends forward from the back side and comprises a first front face; and
the second ring extends forward from the back side and comprises a second front face that is coplanar with the first front face.

20. The hybrid headphone driver of claim 15 , wherein respective back sides of the center chamber and the ring chamber are coplanar.

21. A hybrid headphone driver comprising:
a frame;
a center radiator comprising:
an inner magnet; and
an inner coil that moves in relation to the inner magnet;

a ring radiator comprising:
a ring-shaped outer magnet that encircles the inner magnet; and
an outer coil that moves in relation to the outer magnet;

at least one diaphragm coupled to the inner coil and to the outer coil; and
a second ring radiator comprising a second ring-shaped magnet that encircles the inner magnet and is encircled by the outer magnet.

Assignees

• Voyetra Turtle Beach Inc

Inventors

• Zepp David

Classifications

• H04R9/025

  Magnetic circuit · CPC title

• H04R9/04

  Construction, mounting, or centering of coil · CPC title

• H04R1/24

  Structural combinations of separate transducers or of two parts of the same transducer and responsive respectively to two or more frequency ranges · CPC title

• H04R3/12

  for distributing signals to two or more loudspeakers {(specially adapted for hearing aids H04R25/407)} · CPC title

• H04R1/1075 Primary

  Mountings of transducers in earphones or headphones · CPC title