| 摘要 |
PROBLEM TO BE SOLVED: To prevent a resin frame at an fitting part between the resin frame and a yoke from melting with respect to an inner magnet type magnetic circuit speaker used for an acoustic device. SOLUTION: Radiation of heat is imparted by blending inorganic filler in reinforcement adhesive for covering the fitting part between the resin frame and the yoke, and radiation of heat effect is improved to prevent the resin frame from degrading and to obtain an effect of yoke coming off prevention. Thus, reliability of the speaker can be improved without extra costs. COPYRIGHT: (C)2009,JPO&INPIT
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