公开(公告)号：US11930340B2

公开(公告)日：2024-03-12

申请号：US17428938

申请日：2020-02-06

Applicant: Michel Oltramare

Inventor： Hector Querry ,  Guillaume Heisel ,  Adrien Hoffet ,  Jean-Luc Thuliez ,  Etienne Crozier ,  Robin Zimmerman

IPC: H04R9/02 ,  H04R1/02 ,  H04R9/06

CPC classification number: H04R9/022 ,  H04R9/025 ,  H04R9/06 ,  H04R1/028

Abstract: The present invention relates to principles for cooling the stationary winding of an induction motor, said winding being positioned outside the movable armature. The cooling can be achieved by means of cooling fins, openings allowing the ventilation of the winding with or without a fan, a fluid circuit outside the bowl, a fluid circuit inside the bowl, a fluid circuit inside the winding, and/or the addition of heat pipes inside the bowl. This motor as presented can be used, without limitation, inside loudspeakers or vibrators.

公开(公告)号：US20230164492A1

公开(公告)日：2023-05-25

申请号：US17918078

申请日：2021-04-01

Applicant: Michel OLTRAMARE

Inventor： Hector QUERRY ,  Guillaume HEISEL ,  Adrien HOFFET ,  Jean-Luc THULIEZ ,  Etienne CROZIER ,  Robin ZIMMERMANN

IPC: H04R9/06 ,  H04R9/02 ,  H02K33/16

CPC classification number: H04R9/06 ,  H04R9/025 ,  H02K33/16 ,  H04R2209/043

Abstract: The present invention relates to the operating principle of a loudspeaker (20) with an induction motor (10). The motor (10) has two magnets (1a and 1b) positioned on either side of a central core (2). The magnets (1a and 1b) thus create two magnetic fields (9a and 9b) doubling the magnetic field detected in the movable armature (4). The magnetic field coupled to the electrical field generated by a fixed coil (5) creates a force in the armature (4), which is linked to diaphragm (7) producing the sound. Thus, by increasing the magnetic field, and therefore the force generated in the armature (4), the performances of the loudspeaker (20) are likewise enhanced.

公开(公告)号：US20220141591A1

公开(公告)日：2022-05-05

申请号：US17428938

申请日：2020-02-06

Applicant: Michel OLTRAMARE

Inventor： Hector QUERRY ,  Guillaume HEISEL ,  Adrien HOFFET ,  Jean-Luc THULIEZ ,  Etienne CROZIER ,  Robin ZIMMERMAN

IPC: H04R9/02 ,  H04R9/06

Abstract: The present invention relates to principles for cooling the stationary winding of an induction motor, said winding being positioned outside the movable armature. The cooling can be achieved by means of cooling fins, openings allowing the ventilation of the winding with or without a fan, a fluid circuit outside the bowl, a fluid circuit inside the bowl, a fluid circuit inside the winding, and/or the addition of heat pipes inside the bowl. This motor as presented can be used, without limitation, inside loudspeakers or vibrators.