Global Patent Index - EP 3234467 A1

EP 3234467 A1 2017-10-25 - ELECTRIC HEATING ELEMENT AND CONTACTING SYSTEM HAVING IMPROVED DURABILITY

Title (en)

ELECTRIC HEATING ELEMENT AND CONTACTING SYSTEM HAVING IMPROVED DURABILITY

Title (de)

ELEKTRISCHES HEIZELEMENT UND KONTAKTIERUNG MIT VERBESSERTER HALTBARKEIT

Title (fr)

ÉLÉMENT ÉLECTRIQUE CHAUFFANT ET MISE EN CONTACT PRÉSENTANT UNE DURABILITÉ AMÉLIORÉE

Publication

EP 3234467 A1 (DE)

Application

EP 15816104 A

Priority

  • DE 102014226433 A
  • EP 2015078902 W

Abstract (en)

[origin: WO2016096519A1] The invention relates to an electric heating element (1), which contains an electrically insulating main body (11), in which a heating conductor (12) is embedded. At least two supply lines (13a, 13b) are led from the heating conductor to contact points (+, -), wherein said contact points can be connected to a current source arranged outside of the main body by means of contacting elements (14a, 14b), which are in flush contact. According to the invention, at least one first supply line (13a) is beveled at an angle between 5° and 80°, preferably between 30° and 50°, at the location of a first contact point (+), to which said at least one first supply line is led. It was discovered that a defined mechanical stop for the connection of the first contact point (13a) to the contacting element (14a) can thereby be created. It thus becomes possible to maintain the connection of the contact point (13a) to the contacting element (14a) by means of mechanical pressing. The success of the connection no longer depends on the durability of solder joints and welds. Likewise claimed assemblies of heating elements (1) according to the invention and specifically designed contacting elements (14a, 14b) are distinguished by significantly increased durability, in particular in the case of frequent temperature cycles, because of the improved connection between the heating conductor (12) and the contacting elements (14a, 14b).

IPC 8 full level (invention and additional information)

F23Q 7/00 (2006.01); H05B 3/48 (2006.01)

CPC (invention and additional information)

F23Q 7/001 (2013.01); H05B 3/48 (2013.01); H05B 2203/027 (2013.01)

Citation (search report)

See references of WO 2016096519A1

Designated contracting state (EPC)

AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

Designated extension state (EPC)

BA ME

EPO simple patent family

DE 102014226433 A1 20160623; CN 107113922 A 20170829; EP 3234467 A1 20171025; WO 2016096519 A1 20160623

INPADOC legal status


2018-03-28 [DAV] REQUEST FOR VALIDATION OF THE EUROPEAN PATENT (IN ANY COUNTRY) (DELETED)

2018-03-28 [DAX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT (TO ANY COUNTRY) (DELETED)

2017-10-25 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20170718

2017-10-25 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

2017-10-25 [AV] REQUEST FOR VALIDATION OF THE EUROPEAN PATENT IN:

- Countries: MA MD

2017-10-25 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO:

- Countries: BA ME