公开(公告)号：US5917404A

公开(公告)日：1999-06-29

申请号：US782624

申请日：1997-01-13

申请人： John S Campbell

发明人： John S Campbell

IPC分类号： H01C3/00 ,  H01C3/10 ,  H01C1/01

CPC分类号： H01C3/00 ,  H01C3/10

摘要： An improved power resistor includes a resistive element extending between a first electrical connection terminal and a second electrical connection terminal. The resistive element has a plurality of first insulating regions, arranged along its length extending generally parallel to each other in a first row. The resistive element further has a plurality of second insulating regions arranged generally parallel to each other in a second row. The first and second rows are further arranged generally parallel to each other so that each of the second insulating regions extends between two of the first insulating regions. The first and second insulating regions thereby define a tortuous current path from the first terminal to the second terminal. This tortuous path creates a current path between the terminals having increased resistance. The insulating regions are preferably interleaved chevrons and are preferably formed by stamping out portions of a resistive slab, made of steel or the like. The slab may be rolled or bent to form part of a resistor assembly.

摘要翻译： 改进的功率电阻器包括在第一电连接端子和第二电连接端子之间延伸的电阻元件。 电阻元件具有多个第一绝缘区域，沿着其长度沿第一排大致平行彼此延伸。 电阻元件还具有多个第二绝缘区域，第二绝缘区域在第二排中彼此大致平行地布置。 第一和第二排进一步布置成大体上彼此平行，使得每个第二绝缘区域在两个第一绝缘区域之间延伸。 因此，第一和第二绝缘区域限定了从第一端子到第二端子的弯曲电流路径。 这种曲折路径在具有增加的阻力的端子之间产生电流路径。 绝缘区域优选地是交错的人字形，并且优选地通过冲压由钢等制成的电阻板的部分来形成。 板坯可以卷起或弯曲以形成电阻器组件的一部分。