IP Library Granted Patent US 7,272,237
Granted Patent B2
US 7,272,237 · App. 10/446,298 · Granted Sep 18, 2007

Audio speaker having a removable voice coil

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Quick Facts
Patent No.
US 7,272,237
App. No.
10/446,298
Granted
Sep 18, 2007
Kind
B2
Abstract

An audio speaker having a removable voice coil, which may be a part of a voice coil assembly. The voice coil may be user-removable to facilitate replacement of a damaged voice coil or reconfiguration of a speaker system. Properly positioning the voice coil assembly may provide a solder-free electrical connection between the voice coil and leads that provide current to the voice coil. In some embodiments, the voice coil is user-removably attached to an inner circumferential surface of a diaphragm. In other embodiments, the voice coil is connected to the diaphragm, and the voice coil assembly and the diaphragm are both user-removably attached to a frame.

Claims (32)

1. An audio speaker, comprising:

a frame;

a diaphragm having an outer circumferential surface attached to the frame, and an inner circumferential surface; and

a voice coil assembly comprising a voice coil and a substrate, about which the voice coil is wrapped, the voice coil assembly being user-removably attached the inner circumferential surface of the diaphragm, allowing the voice coil assembly to be removed from the audio speaker, and where the voice coil assembly is removable from the audio speaker without removal of the diaphragm.

2. The audio speaker of claim 1 , further comprising a collar connected between the diaphragm and the voice coil assembly, the collar having an outer surface attached to the inner circumferential surface of the diaphragm, the collar adapted to removably receive the voice coil assembly.

3. The audio speaker of claim 2 , wherein the voice coil assembly attaches to an interior surface of the collar.

4. The audio speaker of claim 3 , wherein the collar is adapted to slidably engage the voice coil assembly.

5. The audio speaker of claim 2 , further comprising a pole, wherein the collar has a surface centered relative the pole.

6. The audio speaker of claim 5 , wherein the voice coil assembly mechanically contacts the surface and the voice coil is centered about the pole.

7. The audio speaker of claim 2 , wherein the collar comprises a fastening mechanism.

8. The audio speaker of claim 7 , wherein the collar is adapted to receive a fastener.

9. The audio speaker of claim 8 , wherein the collar has an electrical contact attached thereto.

10. The audio speaker of claim 9 , further comprising a fastener, wherein the fastener electrically connects the voice coil to the electrical contact.

11. The audio speaker of claim 7 , wherein the fastening mechanism comprises one of a snap fit mechanism and press fit mechanism.

12. The audio speaker system of claim 9 , wherein the collar has a conductive line electrically coupled to the electrical contact, and integrated with the collar.

13. The audio speaker of claim 3 , wherein the voice coil assembly further comprises an interface attached to the interior surface of the collar, and attached to the substrate.

14. The audio speaker of claim 13 , wherein the interface has at least one electrical contact attached thereto.

15. The audio speaker of claim 14 , wherein the interface has a conductive line electrically coupled to the electrical contact, and integrated with the interface.

16. The audio speaker of claim 2 , wherein the collar is integrated with the diaphragm.

17. An audio speaker subassembly, comprising:

a frame;

a diaphragm connected to the frame; and

a collar connected to the diaphragm, the collar being adapted to removably receive a voice coil assembly,

wherein the voice coil assembly comprises a voice coil and is user-removably attached to the collar, allowing the voice coil assembly to be removed from the audio speaker subassembly, and where the voice coil assembly is removable from the audio speaker assembly without removal of the diaphragm.

18. The audio speaker subassembly of claim 17 , wherein the collar is adapted to slidably engage the voice coil assembly.

19. The audio speaker subassembly of claim 17 , further comprising a pole attached to the frame, wherein the collar has a centering surface centered relative the pole.

20. The audio speaker subassembly of claim 17 , wherein the collar comprises a fastening mechanism.

21. The audio speaker subassembly of claim 20 , wherein the fastening mechanism is adapted to receive a fastener.

22. The audio speaker subassembly of claim 20 , wherein the fastening mechanism is one of a snap fit mechanism and press fit mechanism adapted to fasten the voice coil assembly.

23. The audio speaker subassembly of claim 18 , wherein the collar includes at least one electrical contact attached thereto adapted to electrically connect to the voice coil.

24. The audio speaker subassembly system of claim 23 , wherein the collar has a conductive line electrically connected to the contact, and integrated with the collar.

25. The voice coil assembly of claim 17 , wherein the collar is integrated with the diaphragm.

Assignments (10)
RELEASE OF SECURITY INTEREST IN PATENT COLLATERAL (REEL/FRAME 056193/0230) Recorded Apr 12, 2022
From: BANK OF AMERICA, N.A., AS COLLATERAL AGENT
To: DEI SALES, INC.; DEI HOLDINGS, INC.; SOUND UNITED, LLC; POLK AUDIO, LLC; DEFINITIVE TECHNOLOGY, LLC; D&M HOLDINGS U.S. INC.; THE SPEAKER COMPANY; DENEN ELECTRONICS (USA), LLC; MARANTZ AMERICA, LLC; D & M SALES & MARKETING AMERICAS LLC; D&M DIRECT, INC.; BOSTON ACOUSTICS, INC.; D&M PREMIUM SOUD SOLUTIONS, LLC; EQUITY INTERNATIONAL LLC
Reel/Frame 060003/0212 →
RELEASE OF SECURITY INTEREST IN PATENT COLLATERAL (REEL/FRAME 056193/0207) Recorded Apr 12, 2022
From: BANK OF AMERICA, N.A., AS COLLATERAL AGENT
To: POLK AUDIO, LLC; DEI SALES, INC.; DEI HOLDINGS, INC.; SOUND UNITED, LLC; DEFINITIVE TECHNOLOGY, LLC; D&M HOLDINGS U.S. INC.; THE SPEAKER COMPANY; DENEN ELECTRONICS (USA), LLC; MARANTZ AMERICA, LLC; D & M SALES & MARKETING AMERICAS LLC; D&M DIRECT, INC.; BOSTON ACOUSTICS, INC.; D&M PREMIUM SOUD SOLUTIONS, LLC; EQUITY INTERNATIONAL LLC
Reel/Frame 059988/0637 →
RELEASE OF SECURITY INTEREST IN INTELLECTUAL PROPERTY Recorded Feb 14, 2022
From: CERBERUS BUSINESS FINANCE, LLC, AS AGENT
To: POLK AUDIO, LLC; DIRECTED, LLC; DEFINITIVE TECHNOLOGY, LLC; BOSTON ACOUSTICS, INC.; D&M EUROPE B.V.; B & W GROUP LTD; SOUND UNITED, LLC; B & W LOUDSPEAKERS LTD; D&M HOLDINGS INC.
Reel/Frame 059127/0278 →
ABL PATENT SECURITY AGREEMENT Recorded May 10, 2021
From: BOSTON ACOUSTICS, INC.; DEI SALES, INC.; DEI HOLDINGS, INC.; SOUND UNITED, LLC; POLK AUDIO, LLC; DEFINITIVE TECHNOLOGY, LLC; D&M HOLDINGS U.S. INC.; THE SPEAKER COMPANY; DENON ELECTRONICS (USA), LLC; MARANTZ AMERICA LLC; D & M SALES & MARKETING AMERICAS LLC; D&M DIRECT, INC.; D&M PREMIUM SOUND SOLUTIONS, LLC; EQUITY INTERNATIONAL LLC
To: BANK OF AMERICA, N.A., AS COLLATERAL AGENT
Reel/Frame 056193/0207 →
FIRST LIEN PATENT SECURITY AGREEMENT Recorded May 10, 2021
From: BOSTON ACOUSTICS, INC.; DEI SALES, INC.; DEI HOLDINGS, INC.; SOUND UNITED, LLC; POLK AUDIO, LLC; DEFINITIVE TECHNOLOGY, LLC; D&M HOLDINGS U.S. INC.; THE SPEAKER COMPANY; DENON ELECTRONICS (USA), LLC; MARANTZ AMERICA LLC; D & M SALES & MARKETING AMERICAS LLC; D&M DIRECT, INC.; D&M PREMIUM SOUND SOLUTIONS, LLC; EQUITY INTERNATIONAL LLC
To: BANK OF AMERICA, N.A., AS COLLATERAL AGENT
Reel/Frame 056193/0230 →
NOTICE OF SECURITY INTEREST - PATENTS Recorded Oct 9, 2020
From: DEI SALES, INC.; D&M HOLDINGS U.S. INC.; BOSTON ACOUSTICS, INC.; D&M EUROPE B.V.; POLK AUDIO, LLC; DEFINITIVE TECHNOLOGY, LLC; B & W GROUP LTD
To: CERBERUS BUSINESS FINANCE, LLC, AS THE COLLATERAL AGENT
Reel/Frame 054300/0611 →
NOTICE OF SECURITY INTEREST -- PATENTS Recorded Mar 8, 2017
From: POLK AUDIO, LLC; DIRECTED, LLC; DEFINITIVE TECHNOLOGY, LLC; SOUND UNITED, LLC; D&M HOLDINGS U.S. INC.; BOSTON ACOUSTICS, INC.
To: CERBERUS BUSINESS FINANCE, LLC, AS COLLATERAL AGENT
Reel/Frame 041909/0611 →
TERMINATION AND RELEASE OF SECURITY INTEREST Recorded Mar 1, 2017
From: MIZUHO BANK, LTD., LONDON BRANCH
To: BOSTON ACOUSTICS, INC.; DIGITAL NETWORKS NORTH AMERICA, INC.
Reel/Frame 041843/0928 →
SECURITY AGREEMENT Recorded Jul 15, 2010
From: BOSTON ACOUSTICS, INC.
To: MIZUHO CORPORATE BANK, LTD., LONDON BRANCH AS OFFSHORE SECURITY TRUSTEE
Reel/Frame 024686/0239 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 20, 2006
From: LINN, AARON; BLACKMON, LEIF
To: BOSTON ACOUSTICS, INC.
Reel/Frame 017351/0818 →