CONVERSION ELEMENT MEMBER, AND CONVERSION ELEMENT MODULE AND ELECTRONIC EQUIPMENT HAVING THE SAME

• Main Authors: FUKUSHIMA TAMAO, KITAGAWA HISAE, KAMAMOTO YU, INOUE TAKEO
• Format: Patent
• Language: English; Japanese
• Published: 12.11.2020
• Subjects: DEAF-AID SETS; ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKEACOUSTIC ELECTROMECHANICAL TRANSDUCERS; PUBLIC ADDRESS SYSTEMS

To provide a technique that can enhance waterproofness of electronic equipment and suppress deterioration of the characteristics of the electronic equipment even when water pressure is applied thereto.SOLUTION: In a conversion element member 1, a conversion element 2 includes a vent 22 and a waterproof film 3. The waterproof film blocks the vent for an outer surface 23 of the conversion element, and is joined by a joint portion 41 having a shape surrounding the vent. A non-joint portion 31 of the waterproof film has an area 32 overlapping with the outer surface. Here, the separation distance D1 between the waterproof film and the outer surface in the overlapping area is set to a maximum deformation amount X mm or less by which the waterproof film can be deformed. As a result, even when the water pressure applied to the waterproof film is large, the deformed waterproof film comes into contact with the outer surface 23, so that the deformation of the waterproof film is limited to the range of elastic deformation without reaching plastic deformation. Further, since the deformation of the waterproof film due to water pressure is limited to the range of elastic deformation, the degree of permanent deformation of the waterproof film can be relaxed, and it is possible to prevent the contact with the outer surface from continuing after being released from the water pressure.SELECTED DRAWING: Figure 1B 【課題】電子機器の防水性を高め、水圧が加わった場合にも電子機器の特性の低下を抑制できる技術を提供する。【解決手段】変換素子部材１において、変換素子２は通気口２２と、防水膜３とを備える。防水膜は、変換素子の外表面２３に対して通気口を塞ぎ、通気口を囲む形状を持つ接合部４１にて接合される。防水膜の非接合部３１は、外表面と重複する領域３２を有している。ここで、重複する領域での防水膜と外表面との離間距離Ｄ１を、防水膜が変形可能な最大変形量Ｘｍｍ以下にする。これにより、防水膜に加わる水圧が大きい場合でも、変形した防水膜が外表面２３と接触するので、防水膜の変形が塑性変形に達することなく弾性変形の範囲内に制限される。また、水圧による防水膜の変形が弾性変形の範囲内に制限されるので、防水膜の永久変形の程度を緩和でき、水圧からの開放後に外表面との接触が続くことを防止できる。【選択図】図１Ｂ