US 12,075,227 B2
Membrane unit for speaker device
Timothy Ruben Scheek, Rotterdam (NL); and Onno Hein Steenhuis, Rotterdam (NL)
Assigned to Mayht Holding B.V., Nieuw-Vennep (NL)
Appl. No. 17/434,013
Filed by Mayht Holding B.V., Nieuw-Vennep (NL)
PCT Filed Jul. 9, 2019, PCT No. PCT/EP2019/068433
§ 371(c)(1), (2) Date Aug. 26, 2021,
PCT Pub. No. WO2020/182321, PCT Pub. Date Sep. 17, 2020.
Claims priority of application No. 19162460 (EP), filed on Mar. 13, 2019.
Prior Publication US 2022/0141590 A1, May 5, 2022
Int. Cl. H04R 7/06 (2006.01); H01F 27/32 (2006.01); H04R 9/04 (2006.01); H04R 9/06 (2006.01); H04R 31/00 (2006.01); H05K 1/02 (2006.01); H05K 1/18 (2006.01); H05K 3/00 (2006.01); H04R 9/02 (2006.01)
CPC H04R 7/06 (2013.01) [H01F 27/325 (2013.01); H04R 9/046 (2013.01); H04R 9/06 (2013.01); H04R 31/003 (2013.01); H05K 1/0213 (2013.01); H05K 1/181 (2013.01); H05K 3/0011 (2013.01); H04R 9/025 (2013.01); H05K 2201/1003 (2013.01)] 15 Claims
OG exemplary drawing
 
1. Membrane unit for a speaker device,
the membrane unit comprising a membrane and at least two coils,
wherein the respective longitudinal axes of the at least two coils are arranged in parallel, a main surface being formed perpendicular to the respective longitudinal axes,
the at least two coils being positioned adjacent to each other and mechanically connected to the membrane, the membrane being substantially flat and having a major surface parallel to the main surface,
wherein wiring to the at least two coils is provided at least partly on a flat part of the membrane, and
wherein the membrane comprises two spaced apart membrane sections connected through a bridge section, wherein the bridge section is more flexible than each of the membrane sections, and wherein each of the membrane sections comprises a coil of the at least two coils.