Electrical heating device with printed circuit board and PTC heating elements connected by conductor strands

Patent metadata

Field	Value
Publication number	US-9750086-B2
Application number	US-201514683965-A
Country	US
Kind code	B2
Filing date	Apr 10, 2015
Priority date	Apr 14, 2014
Publication date	Aug 29, 2017
Grant date	Aug 29, 2017

Abstract

An electrical heating device for a motor vehicle, which includes at least one heating element and which includes at least one printed circuit board, the printed circuit board having at least one contacting area for establishing an electrical connection between the heating element and an energy source, the heating element having a plurality of PTC heating elements, which are electrically conductively connected to each other by a contact element, the contact element of the heating element being disposed at a distance from the contacting area, an electrically conductive connection between the contact element and the contacting area being established with the aid of a plurality of conductor strands.

First claim

What is claimed is:

1. An electrical heating device for a motor vehicle, the device comprising:
at least one heating element;
at least one printed circuit board having at least one contacting area for establishing an electrical connection between the heating element and an energy source; and
a plurality of PTC heating elements that are electrically conductively connected to each other by a contact element, the contact element of the heating element being arranged at a distance from the contacting area,
wherein an electrically conductive connection is established between the contact element and the contacting area via a plurality of conductors that extend from the contact element to the contacting area,
wherein each of the conductors is a wire, such that the contacting area is electrically conductively connected to the contact element by a plurality of wires, and wherein the plurality of wires are spaced apart from one another.

2. An electrical heating device for a motor vehicle, the device comprising:
at least one heating element;
at least one printed circuit board having at least one contacting area for establishing an electrical connection between the heating element and an energy source; and
a plurality of PTC heating elements that are electrically conductively connected to each other by a contact element, the contact element of the heating element being arranged at a distance from the contacting area,
wherein an electrically conductive connection is established between the contact element and the contacting area via a plurality of conductors that extend from the contact element to the contacting area,
wherein each of the conductors is a strap-like element, such that the contacting area is electrically conductively connected to the contact element by a plurality of strap-like elements, and wherein the plurality of strap-like elements are spaced apart from one another.

3. The electrical heating device according to claim 1 , wherein the conductors are made of aluminum.

4. The electrical heating device according to claim 2 , wherein the conductors are arranged in multiple layers, and wherein the conductors arranged next to each other as well as the conductors arranged on top of each other are arranged at a distance from each other.

5. The electrical heating device according to claim 1 , wherein the contact element and the contacting area are arranged at a distance from each other, and wherein the distance between the contact element and the contacting area are overcome by the conductors.

6. The electrical heating device according to claim 1 , wherein the conductors are soldered or glued or clamped or screwed to the contacting area or to the contact element.

7. The electrical heating device according to claim 1 , wherein conductors having different material thicknesses are used to establish the electrically conductive connection.

8. The electrical heating device according to claim 4 , wherein the individual conductors arranged next to each other in a common layer are formed by conductors having a same material thickness.

9. The electrical heating device according to claim 1 , wherein the conductors are spaced a distance apart by spacing elements.

10. An electrical heating device for a motor vehicle, the device comprising:
at least one printed circuit board having at least two contacting areas for establishing an electrical connection;
at least two contact elements, each of the at least two contact elements having PTC heating elements that are electrically conductively connected to each other,
wherein the at least two contact elements are arranged at a distance from the at least two contacting areas,
wherein an electrically conductive connection is established between one of the at least two contact elements and one of the at least two contacting areas via a plurality of wires, and
wherein the plurality of wires are spaced apart from one another.

Assignees

• Mahle Int Gmbh

Inventors

• Gries Jean-Philippe

Classifications

• F24H3/0447

  Forms of the electrode terminals, e.g. tongues or clips · CPC title

• B60H2001/2278

  Connectors, water supply, housing, mounting brackets · CPC title

• H05B3/06 Primary

  Heater elements structurally combined with coupling elements or holders · CPC title

• H05B2203/023

  Heaters of the type used for electrically heating the air blown in a vehicle compartment by the vehicle heating system · CPC title

• H05B3/50

  heating conductor arranged in metal tubes, the radiating surface having heat-conducting fins · CPC title