公开(公告)号：US07535129B2

公开(公告)日：2009-05-19

申请号：US11804168

申请日：2007-05-16

申请人： David R. Phelps ,  Fred Tamjidi

发明人： David R. Phelps ,  Fred Tamjidi

IPC分类号： H01H31/10

CPC分类号： H02J9/061 ,  H01H9/26 ,  H01H51/01 ,  H01H2300/018 ,  Y10T307/615 ,  Y10T307/696 ,  Y10T307/724 ,  Y10T307/76

摘要： An automatic transfer switch includes first and second magnetically latched relays that respectively connect first and second voltage sources to a critical load. The first and second relays are magnetically latched in their respective opened or closed positions by a permanent magnet so that no holding current is supplied to the relays after switching is completed. As such, no holding current is required for either relay in the non-transferred or the transferred state of the automatic transfer switch, which reduces heat generated by the relays which can lead to relay failure. A switching method uses the automatic transfer switch to switch voltage sources without requiring relay holding currents in either the non-transferred or transferred state. A method of reducing contact bounce is also disclosed.

摘要翻译： 自动转换开关包括分别将第一和第二电压源连接到临界负载的第一和第二磁性锁存继电器。 第一和第二继电器通过永久磁铁在其各自的打开或关闭位置被磁性地锁定，使得在完成切换之后没有保持电流被提供给继电器。 因此，在自动转换开关的非转移或转移状态下的任一继电器不需要保持电流，这减少了由继电器产生的热量，这可能导致继电器故障。 开关方法使用自动转换开关来切换电压源，而不需要继电器保持电流处于非转移或转移状态。 还公开了减少接触反弹的方法。

公开(公告)号：US20080054722A1

公开(公告)日：2008-03-06

申请号：US11804168

申请日：2007-05-16

申请人： David Phelps ,  Fred Tamjidi

发明人： David Phelps ,  Fred Tamjidi

IPC分类号： H02J9/06

CPC分类号： H02J9/061 ,  H01H9/26 ,  H01H51/01 ,  H01H2300/018 ,  Y10T307/615 ,  Y10T307/696 ,  Y10T307/724 ,  Y10T307/76

摘要： An automatic transfer switch includes first and second magnetically latched relays that respectively connect first and second voltage sources to a critical load. The first and second relays are magnetically latched in their respective opened or closed positions by a permanent magnet so that no holding current is supplied to the relays after switching is completed. As such, no holding current is required for either relay in the non-transferred or the transferred state of the automatic transfer switch, which reduces heat generated by the relays which can lead to relay failure. A switching method uses the automatic transfer switch to switch voltage sources without requiring relay holding currents in either the non-transferred or transferred state. A method of reducing contact bounce is also disclosed.

摘要翻译： 自动转换开关包括分别将第一和第二电压源连接到临界负载的第一和第二磁性锁存继电器。 第一和第二继电器通过永久磁铁在其各自的打开或关闭位置被磁性地锁定，使得在完成切换之后没有保持电流被提供给继电器。 因此，在自动转换开关的非转移或转移状态下的任一继电器不需要保持电流，这减少了由继电器产生的热量，这可能导致继电器故障。 开关方法使用自动转换开关来切换电压源，而不需要继电器保持电流处于非转移或转移状态。 还公开了减少接触反弹的方法。