发明名称 |
Ultrasonic vibration device |
摘要 |
In an inner bottom surface of a case, a substantially oblong recess having a long axis and a short axis forms a vibration area. A piezoelectric element is bonded to the center of the recess. On the opposite sides of the vibration area, vibration suppression areas thicker than the vibration area are disposed. A side portion of the case is formed to be thin over the entire circumference thereof. A reinforcing member higher in rigidity than the case is bonded to upper portions of the vibration suppression areas. The reinforcing member has a bottom surface substantially equal to the shape of the vibration suppression areas, and has a predetermined height. A gap between the reinforcing member and an inner side surface of the case is also filled with a filling member. |
申请公布号 |
US8896183(B2) |
申请公布日期 |
2014.11.25 |
申请号 |
US201213556489 |
申请日期 |
2012.07.24 |
申请人 |
Murata Manufacturing Co., Ltd. |
发明人 |
Matsuo Kenji |
分类号 |
H01L41/053;G10K9/122;G10K9/22;B06B1/06 |
主分类号 |
H01L41/053 |
代理机构 |
Dickstein Shapiro LLP |
代理人 |
Dickstein Shapiro LLP |
主权项 |
1. An ultrasonic vibration device comprising:
a case having a side portion and a bottom, the side portion and the bottom defining an interior area and an inner bottom portion, the inner bottom portion of the case defining a vibration area and a vibration suppression area, a thickness of the vibration suppression area being greater than that of the vibration area; a piezoelectric element adjacent the vibration area of the case; a reinforcing member having a greater rigidity than that of the vibration suppression area and disposed adjacent the vibration suppression area; and an elastic resin filling the interior area of the case. |
地址 |
Nagaokakyo-Shi JP |