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US 12,666,199 B2Granted
Speaker device
AssigneeFoster Electric Company, Limited
InventorKentaro Machida
Life of this patent
Estimating the term…
Abstract
A speaker device includes: a first voice coil; a second voice coil disposed radially outside the first voice coil; a first damper supporting the first voice coil to a frame; and a second damper supporting the second voice coil to the frame, and the first damper includes a recessed portion, which is separated from the second voice coil more than other portion of the first damper, on an extension line of a vibration direction of the second voice coil.
Claims15
A speaker device comprising:
- a first voice coil;
- a second voice coil disposed radially outside the first voice coil;
- a first damper supporting the first voice coil to a frame;
- and
- a second damper supporting the second voice coil to the frame, wherein
- the first damper comprises a recessed portion, which is separated from the second voice coil more than other portion of the first damper, on an extension line of a vibration direction of the second voice coil.
3 more elements
A speaker device comprising:
- a first voice coil;
- a second voice coil disposed radially outside the first voice coil;
- a first damper supporting the first voice coil to a frame;
- a second damper supporting the second voice coil to the frame;
- and
- a magnetic circuit comprising a first magnet and a second magnet, wherein
- the first magnet and the second magnet are arranged side by side in a vibration direction of the first voice coil,
- the magnetic circuit comprises an intermediate magnetic member connected to the first magnet and connected, at a surface different from a surface to which the first magnet is connected, to the second magnet, and
- the intermediate magnetic member forms a first magnetic gap in which the first voice coil is disposed and a second magnetic gap in which the second voice coil is disposed.
6 more elements
A speaker device comprising:
- a first voice coil;
- a second voice coil disposed radially outside the first voice coil;
- a first damper supporting the first voice coil to a frame;
- a second damper supporting the second voice coil to the frame;
- and
- a magnetic circuit comprising a first magnet and a second magnet, wherein
- the first magnet and the second magnet are arranged side by side in a vibration direction of the first voice coil,
- the magnetic circuit comprises an intermediate magnetic member connected to the first magnet and connected, at a surface different from a surface to which the first magnet is connected, to the second magnet,
- the first magnet is disposed radially inside the first voice coil,
- the second magnet is disposed radially outside the second voice coil,
- the intermediate magnetic member comprises a central portion connected to the first magnet and an outer peripheral portion connected to the second magnet,
- the first magnet is connected to the central portion of the intermediate magnetic member, and
- the second magnet is connected to the outer peripheral portion of the intermediate magnetic member.
10 more elements
Dependencies are inferred from the claim text.