Speaker and speaker system
AssigneePioneer Corporation
InventorsTakeshi Kaiwa, Osamu Takahashi, Masanori Ito, Kunio Mitobe
Life of this patent
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Abstract
There is provided a speaker or a speaker system which has no chance of disabled ventilating air in a space enclosed with a voice coil bobbin to outside of the magnetic circuit through a throughhole C formed in a magnetic circuit to communicate with the space enclosed with a voice coil bobbin, even if mounting a speaker between inner surfaces of a casing, because of enabled ventilating air from a space enclosed with a voice coil bobbin to outside of a magnetic circuit through an air path 3c formed in the magnetic circuit to communicate with the throughhole C.
Claims8
A speaker, including a vibration system having a voice coil, a cylindrical voice coil bobbin carrying said voice coil and a vibrating member attached to said voice coil bobbin, and a magnetic circuit generating magnetic force in cooperating with said voice coil to drive said vibrating member, and a throughhole communicated with a space enclosed with said voice coil bobbin for ventilating air in said space through a bottom portion of the magnetic circuit, for being used by facing a surface of the vibration system and a bottom portion of the magnetic circuit respectively to the inner surfaces of a casing so as to be held therebetween;
- comprising an air path communicated with said throughhole for ventilating air from said space to outside of said magnetic circuit.
A speaker system comprising;
- a speaker including a vibration system having a voice coil, a cylindrical voice coil bobbin carrying said voice coil and a vibrating member attached to said voice coil bobbin, a magnetic circuit generating magnetic force in cooperating with the voice coil to drive said vibrating member;
- and
- a casing for receiving said speaker, wherein said speaker is held between inner surfaces of said casing by facing a surface of said vibration system and a bottom portion of said magnetic circuit respectively to said inner surfaces, wherein a path is formed in said magnetic circuit to communicate with a space enclosed with the voice coil bobbin for ventilating air in said space from a bottom portion of the magnetic circuit.
Dependencies are inferred from the claim text.