公开(公告)号：US4984125A

公开(公告)日：1991-01-08

申请号：US391293

申请日：1989-08-09

申请人： Yukio Uwano

发明人： Yukio Uwano

IPC分类号： H01J17/34 ,  H01T1/14

CPC分类号： H01J17/34 ,  H01T1/14

摘要： In a gas-filled arrester, a pair of main electrodes and a ground electrode are air-tightly fitted to an insulating tubular member. A springy, electrically-conductive short-circuiting element having an arcuate shape is fitted around the outer wall of the ground electrode. The short-circuiting element includes extension portions extending along the outer wall of the insulating tubular member to the respective main electrodes, and these extension portions are made to face the main electrodes by utilization of spring characteristics thereof with a certain gap maintained and with a thermally-fusible spacer interposed. With this construction, if the arrester is overheated, the spacer is thermally fused by heat and therefore the extension portions electrically contact the main electrodes due to the spring characteristics thereof. Since the main electrodes are thus short-circuited to the ground electrode, the arrester is prevented from failing.

摘要翻译： 在充气避雷器中，一对主电极和接地电极气密地配合到绝缘管状部件上。 具有弓形形状的弹性导电短路元件安装在接地电极的外壁周围。 短路元件包括沿着绝缘管状构件的外壁延伸到相应主电极的延伸部分，并且这些延伸部分通过利用其弹簧特性而保持一定的间隙并且与热电连接 插入的可熔隔板。 利用这种结构，如果避雷器过热，则间隔件由于热而热熔化，因此由于其弹簧特性，延伸部分与主电极电接触。 由于主电极因此短路到接地电极，所以防止了避雷器的故障。

公开(公告)号：US20080198527A1

公开(公告)日：2008-08-21

申请号：US11807806

申请日：2007-05-30

申请人： Shuji Higashi ,  Yoshio Igarashi ,  Yukio Uwano ,  Yasuharu Yamada

发明人： Shuji Higashi ,  Yoshio Igarashi ,  Yukio Uwano ,  Yasuharu Yamada

IPC分类号： H02H3/22 ,  H01C7/12

CPC分类号： H02H9/042 ,  H02H9/06

摘要： In a surge protection device 40 (40-1 or 40-2) used for a surge protection apparatus, a gas arrester 41 is connected in series with a varister group consisting of a plurality of varisters 42-1 to 42-5 which have high withstand capacity and are connected in parallel to one another and a discharge resistor 43 is connected between both electrodes of the varister group. Besides, since the varister voltages are set higher than the peak value of the AC power supply voltage, the varisters 42-1 to 42-5 are normally insulated from a power supply circuit by the gas arrester 41. Even if an abnormal voltage is applied, since an operating voltage of the varisters 42-1 to 42-5 is set higher than a peak value of the AC power supply voltage, AC power supply current will not flow. Charges stored in the varisters 42-1 to 42-5 are released quickly through the resistor 43, making it possible to prevent the gas arrester 41 from restriking. This provides a small, reliable, inexpensive surge protection device (SPD) relatively simple in structure and a surge protection apparatus using thereof.

摘要翻译： 在用于浪涌保护装置的浪涌保护装置40（40-1或40-2）中，气体避雷器41与由多个具有高电平的多个清洗剂42-1至42-5组成的清漆组串联连接 承受能力并且彼此并联连接，并且放电电阻器43连接在所述清漆组的两个电极之间。 此外，由于将修整电压设定为高于交流电源电压的峰值，所以通过避雷器41将整流器42-1至42-5通常与电源电路绝缘。即使施加了异常电压 由于调光器42-1至42-5的工作电压被设定为高于交流电源电压的峰值，所以交流电源电流不会流动。 存储在调光器42-1至42-5中的电荷通过电阻器43快速释放，使得可以防止气体避雷器41再起弧。 这提供了一种结构相对简单且使用其的浪涌保护装置的小型，可靠，廉价的浪涌保护装置（SPD）。