| 摘要 |
Disclosed is a diaphragm buzzer including a lower cover and an upper cover. A sheet buzz element having a centered diaphragm is disposed inside the lower and the upper cover and is protectively sandwiched between a press plate and a plastic washer before it is fixed to the upper cover, lest the sheet buzz element should detach from the wires connecting it to a circuit board and become loose and damaged in the two covers.
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