Sound generation unit and electronic device

• Main Authors: KATSUNO MASAFUMI, IKEZAWA NORIAKI, KUMASAKA KATSUNORI, SHUTA KOICHI, ABE YOSHIYUKI, YAMAZAKI OSAMU
• Format: Patent
• Language: Chinese; English
• Published: 22.02.2017
• Subjects: DEAF-AID SETS; ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKEACOUSTIC ELECTROMECHANICAL TRANSDUCERS; PUBLIC ADDRESS SYSTEMS

An electronic device 10 is provided with a main surface member 20 used as a vibration board, a case 30 supporting the main surface member 20 and a sound generation unit 50 attached to the case 30 to vibrate the main surface member 20 and thereby generating sound. The sound generation unit 50 is provided with a piezoelectric board 60 and a protection member 90. The piezoelectric board 60 is long in a first horizontal direction and has an upper surface, a lower surface and a plurality of side surfaces. The protection member 90 has a supporting portion 92 supporting the piezoelectric board 60 with covering the lower surface of the piezoelectric board 60, a protection portion 93 provided on the supporting portion 92 to cover at least one of the side surfaces of the piezoelectric board 60 and an attaching portion 94 attached to the case 30. 电子设备(10)包括：主面构件(20)，被用作振动片；筐体(30)，支承主面构件(20)；以及发声装置(50)，被安装于筐体(30)，通过使主面构件(20)振动来发出声音。发声装置(50)包括压电片(60)及保护构件(90)。压电片(60)在第水平方向具有长边，并具有顶面、底面及多个侧面。保护构件(90)具有：支承部(92)，覆盖压电片(60)的底面