EP2393336B1 - Caloporteur - Google Patents

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Publication number
EP2393336B1
EP2393336B1 EP10290296.2A EP10290296A EP2393336B1 EP 2393336 B1 EP2393336 B1 EP 2393336B1 EP 10290296 A EP10290296 A EP 10290296A EP 2393336 B1 EP2393336 B1 EP 2393336B1
Authority
EP
European Patent Office
Prior art keywords
housing
insulation
heat exchanger
ptc heating
heating element
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP10290296.2A
Other languages
German (de)
English (en)
Other versions
EP2393336A8 (fr
EP2393336A1 (fr
Inventor
Thierry Clauss
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mahle Behr France Rouffach SAS
Original Assignee
Mahle Behr France Rouffach SAS
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by Mahle Behr France Rouffach SAS filed Critical Mahle Behr France Rouffach SAS
Priority to EP10290296.2A priority Critical patent/EP2393336B1/fr
Publication of EP2393336A1 publication Critical patent/EP2393336A1/fr
Publication of EP2393336A8 publication Critical patent/EP2393336A8/fr
Application granted granted Critical
Publication of EP2393336B1 publication Critical patent/EP2393336B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B3/00—Ohmic-resistance heating
    • H05B3/40—Heating elements having the shape of rods or tubes
    • H05B3/42—Heating elements having the shape of rods or tubes non-flexible
    • H05B3/48—Heating elements having the shape of rods or tubes non-flexible heating conductor embedded in insulating material
    • H05B3/50—Heating elements having the shape of rods or tubes non-flexible heating conductor embedded in insulating material heating conductor arranged in metal tubes, the radiating surface having heat-conducting fins
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B2203/00—Aspects relating to Ohmic resistive heating covered by group H05B3/00
    • H05B2203/02—Heaters using heating elements having a positive temperature coefficient

Definitions

  • the invention relates to a heat exchanger according to the preamble of claim 1.
  • Consumption-optimized vehicles generate less and less waste heat, which is available for warming up the interior. Especially in the starting phase and at low outside temperatures it is necessary to heat up.
  • electric heaters with PTC heating elements are used, which make the conversion of electrical energy, for example from the electrical system of the vehicle into heat.
  • an electric heater which comprises a PTC heating element and an insulating housing surrounding the PTC heating element, wherein the housing comprises a housing shell element and a shell counter element, which abut each other with the interposition of a sealing strip applied to opposite end sides of the housing elements.
  • the sealing element seals the housing elements against each other in an externally acting on the heat-generating element and the tracks against the PTC heating element pushing pressure force and surrounds the PTC heating element sealing.
  • EP 1 768 459 A1 EP 1 768 458 B1 and EP 1 768 457 B1
  • HV-PTC heaters are described in which the electrical insulation is effected in that the contact plates are each covered by an insulating layer, and that the insulating layers are connected to an insulating or positioning housing.
  • the EP 2 190 256 A1 discloses a heat exchanger for a motor vehicle, which has a housing in which at least one PTC heating element is arranged, which in each case adjoins a contact plate on opposite sides, wherein the at least one PTC heating element and the adjacent contact plates on the opposite sides are glued together so as to form a preassembled structural unit (8), wherein an insulation is provided between an inner wall of the housing and each of the contact sheets, wherein the insulation is also part of the preassembled unit.
  • the object of the present invention to provide a designed as an electric heater heat exchanger, in which on the one hand a water and dustproof, but not electrically insulating housing is provided and in which on the other hand, the PTC heating elements and adjacent contact plates both in the housing are positioned as well as against the insulation, which has a structurally simple and thus cost-effective construction.
  • a heat exchanger in particular an electric heater for a motor vehicle, which has a housing in which at least one PTC heating element is arranged, which in each case adjoins a contact plate on opposite sides, wherein the at least one PTC heating element and the opposite sides adjacent contact sheets are glued together so as to form a preassembled unit, wherein between an inner wall of the housing and each of the contact plates insulation is provided, the insulation is also part of the preassembled unit, wherein all contact surfaces of PTC heating element, the two contact plates and the insulation are glued together, and wherein the insulation is U-shaped.
  • the housing is dustproof and waterproof, so that a long life of the heat exchanger can be guaranteed.
  • the housing is electrically conductive, in particular made of aluminum.
  • the housing consists of two half-shells, which are tightly connected to each other, in particular glued, welded or folded, are.
  • the housing is made as a closed tube, in particular of an extruded tube.
  • the insulation is made of polyimide, silicone, ceramic-filled silicone or ceramic, in particular alumina, aluminum nitride or boron nitride.
  • the insulation is U-shaped.
  • the U-shaped design of the insulation makes it possible to position the preassembled unit and at the same time to space it from the electrically non-insulating housing.
  • a position profile is attached to the insulation.
  • the position profile is preferably made of an electrically insulating material, in particular of polyamide or silicone.
  • the position profile is fixed to the insulation by means of an adhesive.
  • the position profile is formed self-adhesive or self-adhesive.
  • the position profile can also be fixed to the insulation by means of latching, sliding, gluing or extrusion coating.
  • the contact plates are each connected to a position profile, which positions the preassembled unit both in the housing and against the insulation.
  • the at least one PTC heating element is not held by the position profile, because the at least one PTC heating element and the contact plates bonded thereto form the preassembled structural unit.
  • the preassembled unit can be positioned both in the housing and against the insulation.
  • the position profile can be fixed according to yet another preferred embodiment by means of snapping, pushing, gluing or extrusion coating on the contact plate.
  • Fig.1A and Fig. 1B each show a sectional view through a housing 1 of a heat exchanger 2 according to a non-inventive embodiment, wherein the in Fig. 1A Housing 1 shown in two parts of two half-shells 3, 3 'is constructed, which are connected together tightly by gluing, and in Fig. 1B shown housing 1 is made in one piece from a closed, extruded tube.
  • the housing 1 is made of aluminum in both cases.
  • the structure and the arrangement of the individual elements of the heat exchanger 2 in the interior of the respective housing 1 is in the embodiments of Fig. 1A and Fig. 1B however identical and will only be based on the Fig. 1A explained.
  • the housing 4 there is a plurality of PTC heating elements 5 in the housing 4, which is sealed in a watertight and dust-tight manner, in its interior space 4.
  • a contact plate 7, 7' is arranged in each case.
  • the PTC heating elements 5 are glued to the contact plates 7, 7 'and thus form the preassembled unit 8.
  • an insulation 10, 10 ' is arranged between an inner wall 9 of the housing 1 and each contact plate 7, 7'.
  • the insulation 10, 10 ' is in the embodiment of polyimide.
  • the insulation may also be made of silicone, ceramic-filled silicone, or ceramic such as alumina, aluminum nitride, boron nitride.
  • the insulation 10 and the insulation 10 ' are spaced apart in the interior 4 of the housing.
  • To the insulation 10, 10 ' is in each case a position profile 11, 11' attached or glued thereto.
  • the insulation 10, 10 ' forms a U-shaped element with a respective position profile 11, 11'.
  • the assembly 8 consisting of the plurality of PTC heating elements 5 and the contact plates glued on both sides 7, 7 'is positioned by the described arrangement in a simple manner both in the housing 1 and against the insulation 10, 10'.
  • Fig. 2A, 2B each show a sectional view through a housing 1 of a heat exchanger according to an embodiment of the invention.
  • the housing which as already in connection with Fig. 1A and Fig. 1B has been explained in Fig. 2A two-piece and in Fig. 2B is formed in one piece.
  • the arrangement of the elements in the interior 4 of the housing 1 shown here differs from the in Fig. 1A and Fig. 1B illustrated embodiment in that instead of the provision of a position profile 11, 11 ', the insulation 10, 10' itself each U-shaped and thus ensures the positioning of the preassembled unit 8 in the housing 1 and against the insulation 10, 10 '.
  • FIGS. 3A and 3B each show a sectional view through a housing 1 of a heat exchanger 2 according to yet another non-inventive Embodiment.
  • the Fig. 3A, 3B differ with respect to their housing 1 in the manner already described above.
  • the FIGS. 3A and 3B illustrated embodiment differs from the embodiments described so far in that the position profiles 11, 11 'here are not attached to the respective insulation 10, 10' and the insulation 10, 10 'is itself formed as a position profile sandem the position profiles eleventh , 11 'here are attached to the both sides of the PTC heating elements 5 adhered contact plates 7, 7', wherein the contact plates 7, 7 'of in FIGS.
  • Fig. 4A, 4B each show a sectional view through a housing 1 of a heat exchanger 2 according to another embodiment not according to the invention.
  • the Fig. 4A, 4B differ with respect to their housing 1 in the manner already described above.
  • the position profiles 11, 11 ' are attached to the contact plates 7, 7', in which case the position profiles 11, 11 'have been glued to the respective contact plates 7, 7'.
  • Fig. 5A, 5B each show a sectional view through a housing 1 of a heat exchanger 2 according to another embodiment not according to the invention.
  • the Fig. 5A, 5B differ with respect to their housing 1 in the manner already described above.
  • the insulation 10, 10 'at a first end portion 14, 14' respective first recesses 15, 15 'and at a second end portion 16, 16 'respective second recesses 17, 17' in which the position profiles 11, 11 'are also included.
  • Fig. 6A, 6B each show a sectional view through a housing 1 of a heat exchanger 2 according to another embodiment not according to the invention.
  • the PTC heating element 5, the two contact sheets 7, 7 'and the insulation 10, 10' form a preassembled unit, the manufacturing process ensuring the relative positioning of these components to one another.
  • all contact surfaces of PTC heating element, the two contact plates 7, 7 'and the insulation 10, 10' are glued together.
  • the preassembled unit consisting of the PTC heating element 5, the two contact plates 7 and 7 'and the insulation 10, 10' is formed by the two end portions of the insulation in the housing (formed as a closed tube ( Fig. 6B ) or as two half-shells ( Fig. 6A )).
  • PTC heating elements can be positioned in a watertight and dust-tight housing with the heat exchanger 1 designed in this way in a structurally simple and thus cost-effective manner.

Landscapes

  • Air-Conditioning For Vehicles (AREA)
  • Resistance Heating (AREA)

Claims (6)

  1. Echangeur de chaleur (2), en particulier appareil de chauffage auxiliaire électrique pour un véhicule automobile, appareil de chauffage auxiliaire qui présente un boîtier (1) dans lequel est disposé au moins un élément chauffant - CTP - à coefficient de température positif (5) qui est adjacent respectivement, sur des côtés opposés, à une tôle de contact (7, 7'), où l'élément chauffant CTP (5) au moins au nombre de un et les tôles de contact (7, 7') adjacentes sur les côtés opposés sont collés ensemble, pour former ainsi un ensemble modulaire prémonté (8), où il est prévu une isolation (10, 10') placée entre une paroi intérieure (9) du boîtier (1) et chacune des tôles de contact (7, 7'), où l'isolation (10, 10') fait également partie de l'ensemble modulaire prémonté, caractérisé en ce que toutes les surfaces de contact de l'élément chauffant CTP, des deux tôles de contact (7, 7') et de l'isolation (10, 10') sont collées les unes aux autres, et où l'isolation (10, 10') est configurée en forme de U.
  2. Echangeur de chaleur (2) selon la revendication 1, caractérisé en ce que le boîtier (1) est étanche à la poussière et à l'eau.
  3. Echangeur de chaleur (2) selon la revendication 1 ou 2, caractérisé en ce que le boîtier (1) est réalisé dans un matériau électroconducteur, en particulier est en aluminium.
  4. Echangeur de chaleur (2) selon l'une quelconque ou plusieurs des revendications 1 à 3, caractérisé en ce que le boîtier (1) se compose de deux demi-coques (3, 3') qui sont assemblées l'une à l'autre de manière étanche, étant en particulier collées, soudées ou agrafées.
  5. Echangeur de chaleur (2) selon l'une quelconque ou plusieurs des revendications 1 à 3, caractérisé en ce que le boîtier (1) est fabriqué comme un tube fermé, en particulier à partir d'un tube extrudé.
  6. Echangeur de chaleur (2) selon l'une quelconque des revendications précédentes, caractérisé en ce que l'isolation (10, 10') qui est fabriquée se compose de polyimide, de silicone, de silicone chargé en céramique, ou bien se compose de céramique, en particulier d'oxyde d'aluminium, de nitrure d'aluminium ou de nitrure de bore.
EP10290296.2A 2010-06-04 2010-06-04 Caloporteur Active EP2393336B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP10290296.2A EP2393336B1 (fr) 2010-06-04 2010-06-04 Caloporteur

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP10290296.2A EP2393336B1 (fr) 2010-06-04 2010-06-04 Caloporteur

Publications (3)

Publication Number Publication Date
EP2393336A1 EP2393336A1 (fr) 2011-12-07
EP2393336A8 EP2393336A8 (fr) 2012-02-15
EP2393336B1 true EP2393336B1 (fr) 2017-05-17

Family

ID=42938194

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10290296.2A Active EP2393336B1 (fr) 2010-06-04 2010-06-04 Caloporteur

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EP (1) EP2393336B1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2608633B1 (fr) 2011-12-22 2020-08-26 Eberspächer catem GmbH & Co. KG Elément générateur de chaleur
DE102012013770A1 (de) 2012-07-11 2014-01-16 Eberspächer Catem Gmbh & Co. Kg Wärme erzeugendes Element
DE102012107985B4 (de) 2012-08-29 2023-06-22 Borgwarner Ludwigsburg Gmbh Heizstab
EP2731400A1 (fr) * 2012-11-12 2014-05-14 Betacera Inc. Appareil de chauffage électrique avec mécanisme imperméable à l'eau
EP2933577B1 (fr) 2014-04-14 2017-12-06 Mahle Behr France Rouffach S.A.S Dispositif de chauffage électrique
EP4333558A1 (fr) * 2022-08-31 2024-03-06 MAHLE International GmbH Chauffage ptc et procédé

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE50001877D1 (de) * 2000-08-25 2003-05-28 Catem Gmbh & Co Kg PTC-Heizvorrichtung mit Klebstoff
FR2826829B1 (fr) * 2001-06-27 2004-04-02 Valeo Climatisation Echangeur de chaleur a barreaux chauffants contenant des elements resistifs
ATE357123T1 (de) * 2004-11-11 2007-04-15 Dbk David & Baader Gmbh Elektrischer platinenheizbaustein, elektronikplatine und verfahren zum beheizen
ES2303712T3 (es) 2005-09-23 2008-08-16 CATEM GMBH & CO. KG Elemento generador de calor para un dispositivo de calefaccion.
ES2360884T3 (es) 2005-09-23 2011-06-10 EBERSPÄCHER CATEM GMBH & CO. KG Elemento generador de calor de un dispositivo de calefacción.
ES2303167T3 (es) 2005-09-23 2008-08-01 CATEM GMBH & CO. KG Elemento generador de calor de un dispositivo calefactor.
US20080173637A1 (en) * 2005-11-02 2008-07-24 Koshiro Taguchi Insulated waterproof heater
ES2322492T3 (es) 2006-10-25 2009-06-22 EBERSPACHER CATEM GMBH & CO. KG Elemento generador de calor para un dispositivo calefctor y procedimiento de fabricacion del mismo.
DE502008001033D1 (de) 2008-04-11 2010-09-09 Eberspaecher Catem Gmbh & Co K Wärmeerzeugendes Element und Heizvorrichtung umfassend ein wärmeerzeugendes Element
EP2190258A1 (fr) * 2008-11-20 2010-05-26 Behr France Rouffach SAS Caloporteur

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
EP2393336A8 (fr) 2012-02-15
EP2393336A1 (fr) 2011-12-07

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