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1. 发明授权

US4538087A Alternating current driven piezoelectric latching relay and method of operation 失效
标题翻译：交流驱动压电闭锁继电器及其运行方法
公开(公告)号：US4538087A
公开(公告)日：1985-08-27
申请号：US619673
申请日：1984-06-11
申请人： Carmen P. Germano , John M. Davenport
发明人： Carmen P. Germano , John M. Davenport
IPC分类号： H01H47/22 , H01H57/00 , H01L41/08
CPC分类号： H01H57/00
摘要： An alternating current latching relay is provided which employs a latching-type, mechanically operated snap-action switch mechanism with a set of electric contacts that are selectively latched either in the open or closed condition in a snap-action manner upon successive actuations of the snap-action mechanism by suitable push rod means for initiating its operation. At least one alternating current excited bender-type piezoelectric drive member has one end secured to a common base member with the latching-type snap-action switch mechanism and the remaining free end engaging the push rod means. An alternating current electric excitation signal is directly applied to the piezoelectric plate elements of the bender-type drive member for mechanically vibrating the bender-type drive member in a manner such that its amplitude of vibration quickly builds up to a value where it repeatedly strikes the push rod means with sufficient force to selectively actuate the snap-action switch mechanism to the opposite one of its two operating conditions from that in which it originally was set. A tuning mass in the form of a slug element is secured to the end of the bender-type drive member to reduce the natural resonant frequency of vibration of the bender-type drive member to substantially the frequency of the alternating current excitation signal to thereby increase the amplitude of its vibrations to a maximum. Additionally, the tuning mass increases the impulse delivered by the bender-type drive member to the push rod for actuating the snap-action mechanism.
摘要翻译：提供了一种交流锁定继电器，其采用闩锁型机械操作的快动开关机构，其具有一组电触点，所述一组电触点在所述卡扣的连续致动时以卡扣动作方式选择性地在打开或闭合状态下锁定通过合适的推杆装置启动其操作。至少一个交流激励弯曲型压电驱动构件的一端通过闩锁型卡合动作开关机构固定到公共基座构件，而剩余的自由端与推杆装置接合。交流电激励信号直接施加到弯曲型驱动部件的压电板元件，用于以弯曲型驱动部件机械振动，使得其振动振幅迅速建立到其反复撞击的值推杆装置具有足够的力以选择性地将快动开关机构致动到其两个操作条件与原来设定的操作条件相反的一个。将块状元件形式的调谐块固定到弯曲型驱动构件的端部，以将弯曲型驱动构件的固有振动频率基本上降低到交流激励信号的频率，从而增加其振动幅度最大。此外，调谐质量将由弯曲型驱动构件传递的脉冲增加到用于致动快动动作机构的推杆。

2. 发明授权

US4553061A Piezoelectric bimorph driven direct current latching relay 失效
标题翻译：压电双压电驱动直流闭锁继电器
公开(公告)号：US4553061A
公开(公告)日：1985-11-12
申请号：US619672
申请日：1984-06-11
申请人： Carmen P. Germano
发明人： Carmen P. Germano
IPC分类号： H01H47/22 , H01H57/00 , H01L41/08
CPC分类号： H01H57/00
摘要： A direct current latching relay comprised of bender-type piezoelectric drive members each of which is a three terminal member formed of two piezoelectric plate elements separated by a conductive plane. Each piezoelectric plate element is separately electrically charged with an input pulsed d.c. switching signal of the same polarity as the pre-poling field previously induced in the piezoelectric plate element. By electrically charging one of the piezoelectric plate elements with a switching signal electric field of the same polarity as the pre-poling field, the bender-type drive members are member made to bend in one direction. Alternatively, by charging the opposite plate of the drive member again with a direct current electric charging field of the same polarity as the pre-poling field previously induced in the plate, the bender-type drive member can be caused to bend in the opposite direction. The bender-type piezoelectric drive member when bent engages and drives a push rod which actuates a snap-action switching contact mechanism from either an open circuit state or to a closed circuit state or vice versa. Pulsed direct current charging fields are applied to the piezoelectric plate element of the bender-type drive member and a high resistance discharge resistor is connected across each of the piezoelectric plate members so as to automatically discharge the plate members shortly after their excitation. As a result, no long term depolarization of the piezoelectric plate members occurs and because of the pulsed short term nature of the charging fields, no long term deformation (creep) develops in the plate elements over extended periods of usage of the relay.
摘要翻译：一种直流闭锁继电器，包括弯曲型压电驱动构件，每个都是由两个由导电平面隔开的压电板元件构成的三端子构件。每个压电板元件分别带有输入脉冲直流电。开关信号与前面在压电板元件中感应的预极化极性相同。通过用与预极化极性相同的开关信号电场对压电板元件中的一个进行充电，弯曲型驱动构件被制成在一个方向上弯曲。或者，通过将驱动部件的对置板再次以与先前在板中感应到的预极化极性相同极性的直流充电场再次进行充电，使弯曲型驱动部件向相反方向弯曲。弯曲型压电驱动构件弯曲时接合并驱动推动杆，该推杆将开关触发机构从开路状态或闭路状态驱动，反之亦然。将脉冲直流充电场施加到弯曲型驱动构件的压电板元件，并且在每个压电板构件之间连接有高电阻放电电阻器，以便在其激励后不久自动地对板构件进行放电。结果，不会发生压电板构件的长期去极化，并且由于充电场的脉冲短期性质，在延长的继电器使用期间在板元件中不会发生长期的变形（蠕变）。

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