Patent ID: 11962972
Assignee: SONY GROUP CORPORATION
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H  G | IPC H

Claim 3:
4. A speaker, comprising:
a case body that includes:
a rear surface part,
a side surface part continuous with a side edge of the rear surface part,

wherein the side surface part is on a first side of the case body,
a top surface part continuous with a top edge of the rear surface part,
a bottom surface part continuous with a bottom edge of the rear surface part,
an interior space as a disposition space,
an audio passage hole that communicates with the disposition space, wherein
the audio passage hole corresponds to an opening surrounded by the rear surface part, the top surface part, and the bottom surface part,
the audio passage hole is on a second side of the case body opposite to the first side in a first direction, and
the audio passage hole is configured to pass output audio, and

a reinforcement part in a central part of the audio passage hole with respect to a second direction orthogonal to the first direction;

a piezoelectric element in the disposition space,
wherein the piezoelectric element is configured to be operated by application of a voltage; and

a diaphragm configured to vibrate based on operation of the piezoelectric element,
wherein the diaphragm is on an inner surface of the case body.