Assembled heatable media line comprising a media line having at least two heating elements arranged on the exterior thereof, and method for the production thereof

Patent metadata

Field	Value
Publication number	US-10520217-B2
Application number	US-201214363329-A
Country	US
Kind code	B2
Filing date	Dec 6, 2012
Priority date	Dec 7, 2011
Publication date	Dec 31, 2019
Grant date	Dec 31, 2019

Abstract

An assembled heatable media line having a media line having at least two heating elements arranged on the exterior of the media line and at least one line connector. In order to heat the at least one line connector, only one of the heating elements is arranged at or on said line connector and at least partially surrounds the same.

First claim

What is claimed is:

1. An assembled heatable media line, comprising:
a media line with at least two heating elements arranged on and in direct contact with an exterior surface thereof and having at least one line connector,
wherein to heat the at least one line connector, only one of the at least two heating elements is additionally arranged on and in direct contact with the line connector, such that the only one of the at least two heating elements is routed from the media line and is wound around or arranged on the line connector and is the only heating element provided for heating the line connector,
wherein the only heating element provided on and in direct contact with the at least one line connector projects from the media line with a greater length (Δl) than any other of the at least two heating elements,
wherein each of the at least two heating elements have no crimping and no connection points in a transition region between the media line and the at least one line connector, with one of the at least two heating elements routed directly from the media line over the transition region and either left open, connected in series to the other one of the at least two heating elements, or connected to a lead, and
wherein the at least two heating elements consist of a single wire, strand or filament along their respective lengths.

2. The assembled heatable media line according to claim 1 , wherein a pitch (S 1 , S 2 ) of a winding of the at least two heating elements on the media line varies by sections, wherein the at least two heating elements are wound around the media line with a shallower pitch in some sections than in a remaining section of the sections.

3. The assembled heatable media line according to claim 2 , wherein the pitch (S 1 , S 2 ) of the winding on the media line is 10 to 40 mm.

4. The assembled heatable media line according to claim 1 , wherein a heating power of the at least two heating elements along the media line is 20 to 8 W/m, and at the at least one line connector 1 to 4 W.

5. The assembled heatable media line according to claim 4 , wherein the at least two heating elements consist of three heating elements which are provided and arranged on and in direct contact with the exterior surface of the media line.

6. The assembled heatable media line according to claim 1 , wherein the only heating element provided on and in direct contact with the line connector is wound in a spiral or meandering manner around the line connector or arranged in an elongate manner around the line connector.

7. The assembled heatable media line according to claim 1 , wherein the media line is a hose or tube.

8. The assembled heatable media line according to claim 1 , wherein ends of the at least two heating elements are reinforced by at least one filling element.

9. The assembled heatable media line according to claim 8 , wherein the ends of the at least two heating elements are accommodated in an encapsulation, and wherein the encapsulation at least partially surrounds the line connector.

10. The assembled media line according to claim 1 , wherein the at least two heating elements have different resistances (R 2 , R 3 ).

11. The assembled heatable media line according to claim 3 , wherein the pitch (S 1 , S 2 ) of the winding on the media line is 20 to 30 mm.

12. The assembled heatable media line according to claim 4 , wherein a heating power of the at least two heating elements along the media line is 14 W/m, and at the at least one line connector is 1.5 W.

13. The assembled heatable media line according to claim 5 , wherein the three heating elements consist of three heating strands.

14. The assembled heatable media line according to claim 7 , wherein the media line is formed as a polyimide tubular line.

15. An assembled heatable media line, comprising:
a media line with at least two heating elements arranged on and in direct contact with an exterior surface thereof and having at least one line connector,
wherein each of the at least two heating elements have no crimping and no connection points in a transition region between the media line and the at least one line connector,
wherein to heat the at least one line connector, only one of the at least two heating elements is additionally arranged on and in direct contact with the line connector, such that the only one of the at least two heating elements is routed directly from the media line over the transition region and is wound around the line connector and is the only heating element provided for heating the line connector,
wherein the only heating element provided on and in direct contact with the at least one line connector projects from the media line with a greater length (Δl) than any other of the at least two heating elements,
wherein the only heating element provided on and in direct contact with the at least one line connector is either connected in series to any other of the at least two heating elements, left open, or connected to a lead, and
wherein the at least two heating elements consist of a single wire, strand or filament along their respective lengths.

Assignees

• Voss Automotive Gmbh

Inventors

• Etscheid Tobias
• Schwarzkopf Otfried
• Isenburg Marco

Classifications

• H01C17/02

  adapted for manufacturing resistors with envelope or housing (apparatus or processes for filling or compressing insulating material in heating element tubes H05B3/52) · CPC title

• H01C17/04

  adapted for winding the resistive element · CPC title

• H05B3/06

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

• Y10T29/49083

  Heater type · CPC title

• F16L53/38 Primary

  using elongate electric heating elements, e.g. wires or ribbons · CPC title