Electromagnetic transducer
First Claim
Patent Images
1. An electromagnetic transducer, comprising:
- a bracket;
a magnetic circuit part receiving in the bracket and including a weight;
a voice generating part actuated by the magnetic circuit part for generating sound;
an elastic element assembled to the bracket for suspending the magnetic circuit part in the bracket;
whereinthe elastic element includes two spring-plates sandwiching the weight therebetween, each of the spring-plates defining a ring plane lamina and a plurality of helical wound springs extending inwardly from the ring plane lamina, the helical wound springs deforming along a direction parallel to a vibrating direction of the magnetic circuit part; and
whereinthe weight includes a plurality of supporting protrusions for anchoring corresponding helical wound springs.
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Abstract
An electromagnetic transducer is disclosed. The transducer includes a bracket, a magnetic circuit part receiving in the bracket and having a weight, a voice generating part actuated by the magnetic circuit part for generating sound, the magnetic circuit part sandwiched by two spring-plates for vibrating along a direction. The weight further includes a plurality of supporting protrusions for anchoring the two spring-plates, respectively. Each of the two spring-plates has a ring plane lamina and two helical wound springs extending inwardly from the ring plane lamina.
88 Citations
20 Claims
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1. An electromagnetic transducer, comprising:
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a bracket; a magnetic circuit part receiving in the bracket and including a weight; a voice generating part actuated by the magnetic circuit part for generating sound; an elastic element assembled to the bracket for suspending the magnetic circuit part in the bracket;
whereinthe elastic element includes two spring-plates sandwiching the weight therebetween, each of the spring-plates defining a ring plane lamina and a plurality of helical wound springs extending inwardly from the ring plane lamina, the helical wound springs deforming along a direction parallel to a vibrating direction of the magnetic circuit part; and
whereinthe weight includes a plurality of supporting protrusions for anchoring corresponding helical wound springs. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. An electromagnetic transducer, comprising:
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a bracket; a magnetic circuit part receiving in the bracket and including a weight, the weight having a rectangular outside shape which has a plurality of supporting protrusions located at the corner of the weight; a voice generating part actuated by the magnetic circuit part for generating sound; an elastic element assembled to the bracket for suspending the magnetic circuit part in the bracket, and including a first spring-plate and a second spring-plate, the first spring-plate and the second spring-plate mounted on both sides of the weight, respectively, each of the first and second spring-plates defining a ring plane lamina and two helical wound springs extending inwardly from the ring plane lamina for anchoring corresponding supporting protrusions so as to deform along a direction parallel to a vibrating direction of the magnetic circuit part. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification