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Audio Signal Processing

Thin-buzzer

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Thin buzzer

Details

Inventors: Sone, Takahiro;
Assignee: Star Micronics Co., Ltd. (Shizuoka, JP)
Primary Examiner: Crosland; Donnie L.
Assistant Examiner:
Attorney, Agent or Firm: Koda and Androlia

A small and thin buzzer which can be mounted on a printed circuit board. A buzzer assembly and a lead connecting chamber are provided in a buzzer case. One end of each of the terminals for external connection is extended to the inside of the lead connecting chamber and the exciting coil terminals of the buzzer assembly are connected to the terminals for external connection within the buzzer case. A lead groove for leading the exciting coil terminals therethrough are provided on the inner surface of the buzzer case. Thus, the connection between the exciting coil terminals and the terminals for external connection is facilitated and a resonance space for the buzzer assembly is secured.

DETAILED DESCRIPTION Accordingly, it is an object of the present invention to eliminate the above-described problems in the related art and to provide a small and thin buzzer which facilitates the connection between the exciting coil terminals and the terminals for external connection, thereby enabling the mass production thereof, and which has a structure for maintaining the dimensional accuracy of the external shape, thereby enhancing the reliability of the operation of positioning and fixing the buzzer to a circuit board.
To achieve this aim, the present invention provides a thin buzzer comprising: a buzzer case which incorporates a buzzer assembly including an exciting coil and a lead connecting chamber provided adjacently to the buzzer assembly; and terminals for external connection each of which is integrally connected to the buzzer case with one end externally exposed and the other end extended to the lead connecting chamber; the terminals of the exciting coil being connected to the terminals for external connection in the lead connecting chamber of the buzzer case.
According to the present invention, the buzzer case is provided with the buzzer assembly and the lead connecting chamber adjacent to the buzzer assembly, and the exciting coil terminals are led out of the buzzer assembly to the lead connecting chamber in the buzzer case.
Since the lead connecting chamber has a wide space, electrical connection between the exciting coil terminals and the terminals for external connection is facilitated.
The buzzer of the present invention is therefore advantageous in that the solder for maintaining the electrical connection between the exciting coil terminals and the terminals for external connection and the sealing adhesive for sealing the opening for leading out the coil therethrough are accommodated in the lead connecting chamber without protruding from the buzzer.
The above and other objects, features and advantages of the present invention will become clear from the following description of the preferred embodiments thereof, taken in conjunction with the accompanying drawings

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