Electric heating device

Patent metadata

Field	Value
Publication number	US-9894715-B2
Application number	US-201514742767-A
Country	US
Kind code	B2
Filing date	Jun 18, 2015
Priority date	Jun 18, 2014
Publication date	Feb 13, 2018
Grant date	Feb 13, 2018

Abstract

An electric heating device, particularly for a motor vehicle, is provided that has at least one heating element disposed in a housing, whereby the housing has a housing cover and/or a housing base with at least one opening through which the at least one heating element is disposed protruding at least in sections, whereby a sealing element in which the at least one heating element is disposed is provided in the at least one opening in the housing cover and/or in the housing base.

First claim

What is claimed is:

1. An electric heating device comprising:
a housing having a housing cover and a housing base each with at least one first opening;
at least one first heating element arranged in the housing, the at least one first heating element protruding through the at least one first opening of each of the housing cover and the housing base;
a first sealing element in which the at least one first heating element is arranged, the first sealing element being provided inside the at least one first opening of each of the housing cover and the housing base,
wherein a bevel is provided on the housing cover and on the housing base at a perimeter of the at least one first opening of the housing cover and of the housing base,
wherein a bevel is provided on an outer perimeter of the first sealing element, and
wherein the bevel of the first sealing element has a same contour as the bevel at the at least one first opening, such that the bevel of the first sealing element and the bevel at the at least one first opening interact.

2. The electric heating device according to claim 1 , wherein at least one second heating element is provided, wherein at least one second opening is provided in each of the housing cover and the housing base, and wherein a second sealing element for placing the second heating element in the at least one second opening of the housing cover and the housing base is provided.

3. The electric heating device according to claim 2 , wherein the first sealing element is provided inside the at least one first opening of each of the housing cover and the housing base and the second sealing element is provided inside the at least one second opening of each of the housing cover and the housing base.

4. The electric heating device according to claim 1 , wherein the housing has two housing half-shells, and wherein the housing half-shells are arranged substantially perpendicular to the housing cover and to the housing base.

5. The electric heating device according to claim 4 , wherein the housing is a plastic housing, wherein at least the housing half-shells are plastic.

6. The electric heating device according to claim 1 , wherein the housing is a plastic housing, and wherein the housing has a plastic frame.

7. The electric heating device according to claim 1 , wherein the at least one first heating element is a PTC heating element or a HV PTC heating element.

8. The electric heating device according to claim 1 , wherein the at least one first heating element is formed of at least two heating elements, the at least two heating elements together form a heating block.

9. A motor vehicle comprising an electric heating device according to claim 1 .

10. The electric heating device according to claim 1 , wherein an upper surface, a lower surface and side surfaces of the first sealing element are flat, planar surfaces.

11. A method for producing an electric heating device according to claim 1 , the method comprising:
arranging the first flexible sealing element between the at least one first heating element and the housing cover and the housing base; and
assembling the housing and providing the bevel on the housing cover and on the housing base in an area of the at least one first opening and providing the bevel on the first sealing element.

Assignees

• Mahle Int Gmbh

Inventors

• Zirgel Thomas

Classifications

• Y10T29/49004

  including measuring or testing of device or component part · CPC title

• F24H3/0464

  Two-piece frames, e.g. two-shell frames, also including frames as a central body with two covers · CPC title

• F24H3/0405 Primary

  using electric energy supply, e.g. the heating medium being a resistive element; Heating by direct contact, i.e. with resistive elements, electrodes and fins being bonded together without additional element in-between (F24H3/06, F24H3/08, F24H3/10 take precedence) · CPC title

• F24H9/1863

  Arrangement or mounting of electric heating means · CPC title

• F24H3/0429

  For vehicles · CPC title