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Gallery: Technical highlights of the Electric & Hybrid Vehicle Technology Expo

September 18, 2017 By Lee Teschler

EV fuses that won’t explode

aem fuseWhen the battery pack in an electric vehicle goes through a fender-bender or a crash, the cells can get damaged in a way that causes super-high electrical currents to flow. There are fuses in the pack designed to blow in the event of over currents. But the huge currents potentially generated when the pack gets damaged may be enough to vaporize ordinary fuses and cause arcing that can lead to a fire. AEM Components says it’s AirMatrix fuses (top image) solve this problem. The fuse wire sits in a milled-out cavity within a piece of FR4 circuit board material, and the wire attachments in the fuse don’t use solder. The company says it’s the solder in ordinary fuses (bottom image) that can vaporize and cause arcing.

NEXT PAGE: Looks like a car battery but it’s really LiFe

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Filed Under: Editor's Blog, Featured Tagged With: aem, inventus, keysight, marquardt, maxwelltechnologies, rohm, samtec, standexelectronics, tektronix, unipower, Unitedchemicon

Reader Interactions

Comments

  1. Keng Ly says

    September 19, 2017 at 3:49 pm

    Thank you for sharing the latest announcements from Rohm’s EV Power Seminar.

Trackbacks

  1. EV advances come from Formula E electric racing - Power Electronic Tips says:
    December 10, 2019 at 4:01 pm

    […] semiconductors mainly as a way to save space and lighten up the car. For example, Rohm SiC-based inverters used in past seasons have been several kilograms lighter and have occupied about a third less volume than their […]

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