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1. 发明授权

US5644081A Microaccelerometer package with integral support braces 失效
标题翻译：微加速器封装，带有整体支撑支架
公开(公告)号：US5644081A
公开(公告)日：1997-07-01
申请号：US535679
申请日：1995-09-28
申请人： Dwight Lance Schwarz , William Martin Maki , Richard Allen Wilson
发明人： Dwight Lance Schwarz , William Martin Maki , Richard Allen Wilson
IPC分类号： G01P1/02 , G01P15/08
CPC分类号： G01P1/023 , G01P15/08
摘要： A microaccelerometer package is provided for housing a microaccelerometer and its associated signal conditioning circuitry. The microaccelerometer package is constructed to be suitably rugged for use in on-board automotive safety control and navigational systems, so as to be capable of isolating the microaccelerometer from extraneous vibrations and package-induced stresses, yet also be small, lightweight, and amenable to mass production techniques. To achieve the above, the microaccelerometer package employs a leadframe which is initially a one-piece strip frame that is integrally molded with a plastic housing to form the primary structure of the package. The leadframe enhances the rigidity of the package so as to result in a high natural frequency of the package, thereby enabling the microaccelerometer to properly respond to the frequency range of interest, while also minimizing the influence of extraneous road and vehicle vibrations on the microaccelerometer. Use of the leadframe also results in a compact microaccelerometer package that imposes minimal package-induced stresses on the microaccelerometer. As a result, a more reliable signal output is provided by the microaccelerometer for indicating an automobile's acceleration or deceleration.
摘要翻译：提供微加速度计封装以容纳微加速度计及其相关的信号调节电路。微加速器组件被构造成适用于车载汽车安全控制和导航系统中的坚固耐用，以便能够将微加速度计与外部振动和封装引起的应力隔离，而且还可以小型，轻量化并且适于批量生产技术。为了实现上述目的，微加速计封装采用引线框架，该引线框架最初是与塑料外壳整体模制的一体式条形框架，以形成封装的主要结构。引线框架增强了封装的刚度，从而导致封装的高固有频率，从而使得微加速度计能够适当地响应感兴趣的频率范围，同时还使外部道路和车辆振动对微加速度计的影响最小化。引线框架的使用也会导致紧凑的微加速度计封装，在微加速度计上施加最小的封装引起的应力。结果，由微加速度计提供更可靠的信号输出，用于指示汽车的加速或减速。

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