Electrical devices comprising a ptc resistive element

Details Electrical devices comprising a ptc resistive element Electrical devices comprising a ptc resistive element

H - Electricity

01

C

H01C 1/14 (2006.01) H01C 7/02 (2006.01)

Patent

CA 2190361

Laminar electrical devices, in particular circuit protection devices, contain two laminar electrodes (13, 15), with a PTC element (17) between them, and a cross-conductor (51) which passes through the thickness of the device and contacts one only of the two electrodes. This permits connection to both electrodes from the same side of the device. The device also includes layers of solder (64, 65, 66, 67) on the areas of the device through which connection is made, and separation and or masking members (81, 82, 85) which (a) reduce the danger of short circuits formed by solder flow during installation of the device and/or (b) provide a site for permanent marking of the device.

Des dispositifs électriques laminaires, notamment des dispositifs de protection de circuits, comprennent deux électrodes laminaires (13, 15) encadrant un élément CTP (à coefficient de température positif) (17), ainsi qu'un conducteur transversal (51) qui passe dans l'épaisseur de ces dispositifs et nentre en contact qu'avec une des deux électrodes. Ceci permet de connecter les deux électrodes depuis le même côté du dispositif, lequel comprend aussi des couches de soudure (64, 65, 66, 67) dans celles de ses zones où se trouve la connexion, ainsi que des éléments de séparation et/ou de masquage (81, 82, 85) qui: a) réduisent le risque de courts circuits formés par l'écoulement de soudure pendant l'installation du dispositif et/ou b) offrent un site de marquage permanent de ce dispositif.

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