Surface mountable polymeric PTC device with integral weld plate
    100.
    发明公开
    Surface mountable polymeric PTC device with integral weld plate 有权
    Oberflächenmontierbares聚合物PTC Bauelement mit integrierten schweissbarenKontaktflächen

    公开(公告)号:EP1577905A2

    公开(公告)日:2005-09-21

    申请号:EP05101981.8

    申请日:2005-03-14

    Abstract: A surface mount circuit protection device (10) includes a laminar PTC resistive element (12) having first and second major surfaces and a thickness (t) therebetween. A first electrode layer (14) substantially coextensive with the first surface is formed of a first metal material of a type adapted to be soldered to a printed circuit substrate. A second electrode layer (16) formed at the second major surface includes a structure forming or defining a weld plate (18). The metal weld plate (18) has a thermal mass and thickness (t w ) capable of withstanding resistance to micro-spot welding of a strap interconnect without significant resultant damage to the device. The device (10) is preferably surface mounted to a printed circuit board assembly forming a battery protection circuit connected to a battery/cell by battery strap interconnects, wherein one of the battery strap interconnects is micro spot welded to the weld plate of the device.

    Abstract translation: 表面安装电路保护装置(10)包括具有第一和第二主表面的层状PTC电阻元件(12)和它们之间的厚度(t)。 与第一表面基本共同延伸的第一电极层(14)由适于焊接到印刷电路基板的第一金属材料形成。 形成在第二主表面处的第二电极层(16)包括形成或限定焊接板(18)的结构。 金属焊接板(18)的热质量和厚度(t w)能够耐受带状互连的微点焊接,而不会对器件造成显着的损坏。 优选地,所述装置(10)被表面安装到印刷电路板组件,所述印刷电路板组件形成通过电池带互连连接到电池/电池的电池保护电路,其中所述电池带互连件中的一个被微点焊接到所述装置的焊接板。

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