Global Patent Index - EP 0730058 B1

EP 0730058 B1 2000-02-09 - Heating sandwich structure in particular for domestic appliances and domestic appliances with such a structure

Title (en)

Heating sandwich structure in particular for domestic appliances and domestic appliances with such a structure

Title (de)

Heizsandwichstruktur insbesondere für Haushaltgeräte und Haushaltgeräte mit einer solchen Struktur

Title (fr)

Structure chauffante, notamment pour appareil electromenager, realisée selon une structure sandwich et appareil electromenager comportant une telle structure chauffante

Publication

EP 0730058 B1 (FR)

Application

EP 96420069 A

Priority

FR 9502666 A

Abstract (en)

[origin: EP0730058A1] The heating element has a sandwich structure formed by two outer rigid members (2, 3), at least one of which is a heating plate, a flat resistance (4) which is embedded in a first layer of a thermoplastic resin (5), and upper and lower layers (6a, 6b) of an electrically insulating material which adhere to the resin layer. It also has additional thermoplastic resin layers (7a, 7b) to provide adhesion between the heating plate and heating element, and at least one layer of a supplementary electrically insulating material (6c) between an additional layer of thermoplastic resin and an intermediate layer (7c) of an adhesive material which joins the main and supplementary insulating layers. The electrically insulating layers (6a, 6b, 6c) are selected from thermo-setting resins, and preferably polyimide and silicone resins. All the layers are made from the same material and are between 15 and 100 mcm, and pref. 25 mcm thick. The first layer of thermoplastic resin (5) has a layer of fabric, esp. fibreglass, embedded in it, while the intermediate adhesive layer (7c) is selected from PFA (perfluoroalkoxy), PTFE, FEP (tetrafluoroethylene hexafluoropropylene), or PEEK.

IPC 1-7 (main, further and additional classification)

D06F 75/24; H05B 3/30

IPC 8 full level (invention and additional information)

D06F 75/24 (2006.01); H05B 3/30 (2006.01)

CPC (invention and additional information)

D06F 75/24 (2013.01); H05B 3/30 (2013.01)

Designated contracting state (EPC)

DE FR GB IT NL

DOCDB simple family

EP 0730058 A1 19960904; EP 0730058 B1 20000209; DE 69606565 D1 20000316; DE 69606565 T2 20000706; FR 2731237 A1 19960906; FR 2731237 B1 19970430; HK 1013672 A1 20000714; US 5777297 A 19980707