Heat exchanger and method for producing a heat exchanger

Patent metadata

Field	Value
Publication number	US-2016223263-A1
Application number	US-201615094191-A
Country	US
Kind code	A1
Filing date	Apr 8, 2016
Priority date	Oct 29, 2013
Publication date	Aug 4, 2016
Grant date	—

Abstract

A heat exchanger is provided that includes a housing and an exchanger region which is arranged in the housing and has tubes and at least one base, wherein the tubes are connected to the at least one base, wherein the housing is manufactured from a plastic and has a housing inner surface, wherein the housing inner surface is covered at least in regions or in sections by at least one metallic element for protecting the housing from a thermal load. The invention further relates to a method for producing a heat exchanger.

First claim

What is claimed is:

1 . A heat exchanger comprising:
a housing; an exchanger region disposed in the housing with tubes; and at least one base, wherein the tubes are connectable with the at least one base, wherein the housing is manufactured from a plastic material and has a housing inner surface, and wherein the housing inner surface is covered at least in regions or in sections with at least one metallic element for protection of the housing from a thermal load.

2 . The heat exchanger according to claim 1 , wherein a singular or a plurality of metallic elements is provided on at least one housing inner surface, wherein the metallic element or the plurality of metallic elements are molded into the plastic of the housing.

3 . The heat exchanger according to claim 1 , wherein an area receiving a base or an area of the housing directly adjacent to a base, has at least one metallic element on one of the housing inner surfaces.

4 . The heat exchanger according to claim 1 , wherein the at least one metallic element has an annular cross section and outer surfaces of the metallic element simulate an inner surface of the housing.

5 . The heat exchanger according to claim 1 , wherein the at least one metallic element has an at least partially encircling angled edge zone.

6 . The heat exchanger according to claim 5 , wherein the at least partially encircling angled edge region forms a stop against the housing.

7 . The heat exchanger according to claim 1 , wherein the at least one metallic element is formed in two parts, and wherein the division is produced by separating cuts on two opposite surfaces of the metallic element.

8 . The heat exchanger according to claim 1 , wherein the at least one metallic element is an inlay.

9 . The heat exchanger according to claim 8 , wherein the inlay is formed in one piece or several pieces.

10 . The heat exchanger according to claim 1 , wherein the at least one metallic element is a metallic coating on the housing inner surface.

11 . The heat exchanger according to claim 1 , wherein the at least one metallic element completely covers the housing inner side.

12 . The heat exchanger according to claim 1 , wherein the housing is a 2-component plastic part.

13 . A method for producing a heat exchanger having an exchanger region with tubes which are flowed through by a fluid, a housing in which the exchanger region is arranged, and bases, the method comprising:
inserting at least one tube end of the tubes in a first method step in at least one of the bases; and producing a non-releasable or solid tube-base connection in a second method step with a connection technique.

14 . The method according to claim 13 , wherein the connection technique is a laser welding process.

15 . A motor vehicle with at least one heat exchanger, which is produced by a method according to claim 13 .

Assignees

• Mahle Int Gmbh

Inventors

• Emrich Karsten
• Schuele Matthias
• Kraemer Bernd
• Siegel Albrecht
• Schmidgall Gaelle

Classifications

• F28D1/0233 Primary

  with air flow channels · CPC title

• B23P15/26

  heat exchangers {or the like (making heat exchangers by methods covered by other subclasses B21D53/02)} · CPC title

• F28D1/05333

  with multiple rows of conduits or with multi-channel conduits (F28D1/05341 takes precedence) · CPC title

• F28F9/0219

  Arrangements for sealing end plates into casing or header box; Header box sub-elements (F28F9/0236 takes precedence) · CPC title

• F28D7/1684 Primary

  the conduits having a non-circular cross-section · CPC title