US 9,326,324 B2 · Heat generating element

Abstract

An electrical heating device for a motor vehicle includes a frame in which is accommodated a layer structure with corrugated-rib elements and heat generating elements. Each heat generating element includes a positional frame which forms a receptacle in which a PTC element is accommodated, and which includes contact plates abutting on two oppositely situated sides of the PTC element. The heat generating element is formed such that the receptacle is sealed and is accessible through at least one inspection channel that is accessible from the outside. The electrical heating device has a sleeve receptacle which is adapted for the sealing accommodation of a connection piece that protrudes from the heat generating element. Also disclosed is a method for the manufacture of an electrical heating device in which the sealing of the heat generating elements is checked.

Claims8

Dependent claims

A heat generating element for an electrical heating device of a motor vehicle, comprising:

a positional frame, which forms a receptacle in which at least one PTC element is accommodated,
a connection piece protruding from the positional frame, and
contact plates abutting on two oppositely situated sides of the PTC element, wherein the receptacle, is sealed by a circumferential seal formed by the positional frame surrounding the receptacle, and wherein the receptacle is accessible through at least one circumferentially surrounded inspection channel that is accessible from the outside, the inspection channel being formed within the positional frame,
wherein the inspection channel is surrounded by the connection piece.

1 more element

Dependencies are inferred from the claim text.

Heat generating element

Life of this patent

Heat generating element

Life of this patent

Abstract

Claims8