摘要:
An electromagnetic sound generator has a vibrating plate mounted in a case. An armature is secured on the vibrating plate at a central portion thereof. The armature has a concave spherical shape.
摘要:
A connecting device (17) for connecting a sound producing device (10) to an electronic equipment has a connector secured to the sound producing device, and having a pair of elastic contacts (18) and an opening. A slider (19) is provided to be inserted in the connector from the opening, and provided to press the elastic contacts of the connector against terminals of a substrate (20) inserted in the connector from the opening.
摘要:
An electromagnetic sound producing device has a yoke, a coil, a permanent magnet, and a diaphragm provided in a case. The permanent magnet is made of SmFeN-base isotropy plastic magnetic material.
摘要:
An electromagnetic sound generator has a vibrating plate mounted in a case. An armature is secured on the vibrating plate at a central portion thereof. The armature has a concave spherical shape.