Speaker
AssigneeMurata Manufacturing Co., Ltd.
InventorsTakeshi Nakamura, Takayuki Kaneko, Yutaka Murai, Takao Mouri
Life of this patent
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Abstract
A speaker includes a disk-shaped base. A substantially hemispherical surface vibrator is fitted into a substantially circular groove formed in the base to be bonded therein. Terminals are attached to electrodes located on both surfaces of the vibrator. The edge portion of the vibrator is bonded with a first adhesive, and further, its circumference is bonded with a second adhesive. The first adhesive has a sufficient bonding strength between the vibrator and the base. The second adhesive has a lower elastic modulus than the first adhesive.
Claims20
A speaker comprising:
- a substantially hemispherical surface vibrator having an inner electrode and an outer electrode;
- a base bonded to an edge portion of the vibrator and having a bottom surface;
- at least one terminal that is connected to one of the inner electrode and the outer electrode and extends substantially perpendicular to the bottom surface of the base;
- a first adhesive disposed between the edge portion of the vibrator and the base to bond the vibrator to the base;
- and
- a second adhesive disposed at the circumference of the edge portion of the vibrator bonded to the base by the first adhesive;
- wherein
- said base includes at least one terminal groove for receiving said at least one terminal therein.
A speaker comprising:
- a substantially hemispherical surface vibrator having an inner electrode and an outer electrode;
- a base bonded to an edge portion of the vibrator and having a bottom surface;
- at least one terminal that is connected to one of the inner electrode and the outer electrode and extends substantially perpendicular to the bottom surface of the base;
- a first adhesive and a second adhesive arranged to bond the vibrator to the base;
- wherein
- said first and second adhesives are different from each other;
- wherein
- said base includes at least one terminal groove for receiving said at least one terminal therein.
Dependencies are inferred from the claim text.