EP1523225B1 - Dispositif de chauffage comprenant des éléments PTC, en particulier pour véhicules à moteurs - Google Patents

Dispositif de chauffage comprenant des éléments PTC, en particulier pour véhicules à moteurs Download PDF

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Publication number
EP1523225B1
EP1523225B1 EP03292474A EP03292474A EP1523225B1 EP 1523225 B1 EP1523225 B1 EP 1523225B1 EP 03292474 A EP03292474 A EP 03292474A EP 03292474 A EP03292474 A EP 03292474A EP 1523225 B1 EP1523225 B1 EP 1523225B1
Authority
EP
European Patent Office
Prior art keywords
adhesive
ohms
ptc
ptc element
heating assembly
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.)
Expired - Lifetime
Application number
EP03292474A
Other languages
German (de)
English (en)
Other versions
EP1523225A1 (fr
Inventor
Michel Brun
Christophe Schmittheisler
Pascal Miss
Maxime Mundel
Mathieu Mougey
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
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.)
Filing date
Publication date
Priority to AT03292474T priority Critical patent/ATE453306T1/de
Application filed by Behr France Rouffach SAS filed Critical Behr France Rouffach SAS
Priority to DE50312260T priority patent/DE50312260D1/de
Priority to EP03292474A priority patent/EP1523225B1/fr
Priority to PCT/EP2004/010328 priority patent/WO2005039242A1/fr
Priority to JP2006529988A priority patent/JP2007507384A/ja
Priority to CNB2004800291073A priority patent/CN100488323C/zh
Priority to US10/574,543 priority patent/US7759610B2/en
Publication of EP1523225A1 publication Critical patent/EP1523225A1/fr
Application granted granted Critical
Publication of EP1523225B1 publication Critical patent/EP1523225B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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

Definitions

  • the invention relates to a heating arrangement with a PTC element, in particular for a motor vehicle, according to the preamble of claim 1.
  • a heating arrangement with a PTC element for passenger vehicles wherein an additional heating with a radiator, which is flowed through in the operation of the additional heating of heating air, and provided with at least one air outlet opening in the foot of a passenger compartment to which the heating air is passed.
  • the radiator is designed as an electric PTC element, which is arranged directly on the air outlet opening in the foot region.
  • a PTC element is arranged in the form of several Schuwaben in a plastic frame not described in detail, which encloses the air outlet opening.
  • contact plates to PTC elements are conventionally carried out by means of an adhesive, wherein - depending on the application - insulating adhesives with a resistivity of over 10000 ohm cm, or conductive adhesives are used with a resistivity of less than 10 ohm x cm , Such connections between contact plate and PTC element leave nothing to be desired.
  • EP 1 182 908 A1 is a similar prior art.
  • a heating arrangement is provided with at least one PTC element, wherein the PTC element is arranged between contact plates, which serve for electrical connection, wherein the contact plates and the PTC element are connected by means of an adhesive having a specific electrical resistance of at least 50 Ohm x cm and a maximum of 500 ohms x cm, preferably of at least 80 ohms x cm and a maximum of 150 ohms x cm, in particular of 100 ohms x cm +/- 10%.
  • the heating and safety aspects are considered simultaneously when an adhesive with a certain electrical resistivity, in particular an adhesive with a specific electrical resistance of 50 to 500 ohm.cm, is selected, the PTC elements having contact sheets through this electrically conductive adhesive get connected.
  • the specific electrical resistance should be selected so that on the one hand the risk of a short circuit between the contact plates is avoided.
  • the specific electrical resistance should be selected so that in case of damage to the heating system in As a result of aging, the adhesive layer may have a forced relaxation, whereby there is no more direct contact between the PTC element and the contact sheets, but in this case the adhesive layer has sufficient electrical conductivity to maintain the heating function.
  • the adhesive layer has an additional electrical resistance and shows an acceptable heating power. Advantage of the invention is that, in this case, the heating function is not disturbed.
  • the above range of resistivity has been found to be most suitable.
  • the layer thickness of the adhesive between the PTC element and a Kontakblech is negligible before a forced relaxation and is after a forced relaxation of a maximum of 0.02 microns, in particular 0.01 to +/- 10%.
  • solder instead of an adhesive, a solder with a corresponding electrical resistivity can also be used.
  • PTC heating arrangement 1 with ceramic PTC elements in each case a PTC element 2 is glued between two mutually parallel contact plates 3 (plus pole) and 4 (minus pole), in this case by means of an adhesive 5 having a specific electrical resistance of about 100 ohms x cm has.
  • an adhesive 5 having a specific electrical resistance of about 100 ohms x cm has.
  • corrugated ribs 6 are attached by means of a corresponding adhesive connection and to these, again with a corresponding adhesive connection depending on a further contact plate 3 and 4.
  • a plastic frame 7 To the arrangement described above around a plastic frame 7 is arranged. The flow direction of the air is enclosed Fig. 1 in the direction of view.
  • the length of a PTC element 2 with L here 035 mm
  • the thickness of the PTC element 2 with e in this case 1.4 mm
  • the average thickness of the adhesive layer between the surface of the PTC element 2 and a contact sheet 3 or 4 with eta here 0.01 micron
  • the width of the adhesive around the PTC element 2 between the contact plates 3 and 4 is denoted by s and is presently 1 mm.
  • the voltage between the contact sheets 3 and 4 is denoted by U and is according to the present embodiment, 13 V, but may also be greater, for example. 48 V.
  • the electrical resistivity of the adhesive 5 is denoted by Rho adhesives, the resistance of the PTC element 2 with R PTC, the resistance of the layer of adhesive between the PTC element 2 and contact plate 3 or 4 with R Adh.
  • the power of the PTC element 2 is designated P PTC , the power of the adhesive 5 between the contact plates 3 and 4 with P b , the power of the PTC element 2 in conjunction with the adhesive 5 without forced relaxation with P bonding + PTC without forced relaxation , the power of the PTC element 2 in conjunction with the forced release adhesive 5 with P sticking + PTC after forced relaxation , the total power with P total .
  • the ratio P PTC / P b should be chosen as large as possible. Further, however, the ratio of P bonding + PTC without forced relaxation / P bonding + PTC after forced relaxation should be considered as close to 1 as possible. In this case, the ratio of P PTC / P b lies in particular between approximately 4 and 40 and the ratio of P adhesive + PTC without forced relaxation / P bonding + PTC after forced relaxation between approx. 1,2 and 1,02.

Landscapes

  • Air-Conditioning For Vehicles (AREA)
  • Resistance Heating (AREA)
  • Thermistors And Varistors (AREA)

Claims (7)

  1. Dispositif de chauffage comprenant au moins un élément à coefficient de température positif (CTP), en particulier pour un véhicule à moteur, où l'élément (2) à coefficient de température positif (CTP) est disposé entre des tôles de contact (3, 4) qui servent à la connexion électrique, où les tôles de contact (3, 4) et l'élément (2) à coefficient de température positif (CTP) sont assemblés au moyen d'une colle (5),
    caractérisé en ce que la colle (5) présente une résistance électrique spécifique, au minimum de 50 ohms x cm et au maximum de 500 ohms x cm.
  2. Dispositif de chauffage selon la revendication 1, caractérisé en ce que la colle (5) présente une résistance électrique spécifique, au minimum de 80 ohms x cm et au maximum de 150 ohms x cm, en particulier de 100 ohms x cm ± 10 %.
  3. Dispositif de chauffage selon la revendication 1 ou 2, caractérisé en ce que l'épaisseur de couche de la colle (5), entre l'élément (2) à coefficient de température positif (CTP) et une tôle de contact (3, 4), est négligeable avant une détente forcée et, après une détente forcée, est égale au maximum à 0,02 µm, en particulier égale à 0,01 µm ± 10 %.
  4. Dispositif de chauffage comprenant au moins un élément à coefficient de température positif (CTP), en particulier pour un véhicule à moteur, où l'élément (2) à coefficient de température positif (CTP) est disposé entre des tôles de contact (3, 4) qui servent à la connexion électrique, où les tôles de contact (3, 4) et l'élément (2) à coefficient de température positif (CTP) sont assemblés au moyen d'un métal d'apport de brasage,
    caractérisé en ce que le métal d'apport de brasage présente une résistance électrique spécifique, au minimum de 50 ohms x cm et au maximum de 500 ohms x cm.
  5. Dispositif de chauffage selon la revendication 4, caractérisé en ce que le métal d'apport de brasage présente une résistance électrique spécifique, au minimum de 80 ohms x cm et au maximum de 150 ohms x cm, en particulier de 100 ohms x cm ± 10 %.
  6. Dispositif de chauffage selon la revendication 4 ou 5, caractérisé en ce que l'épaisseur de couche du métal d'apport de brasage, entre l'élément (2) à coefficient de température positif (CTP) et une tôle de contact (3, 4), est négligeable avant une détente forcée et, après une détente forcée, est égale au maximum à 0,02 µm, en particulier égale à 0,01 µm ± 10 %.
  7. Colle ou métal d'apport de brasage pour un assemblage entre un élément céramique (2) à coefficient de température positif (CTP) et une tôle de contact électroconductrice (3, 4), caractérisé(e) en ce que la colle (5) ou le métal d'apport de brasage présente une résistance électrique spécifique, au minimum de 50 ohms x cm et au maximum de 500 ohms x cm.
EP03292474A 2003-10-07 2003-10-07 Dispositif de chauffage comprenant des éléments PTC, en particulier pour véhicules à moteurs Expired - Lifetime EP1523225B1 (fr)

Priority Applications (7)

Application Number Priority Date Filing Date Title
DE50312260T DE50312260D1 (de) 2003-10-07 2003-10-07 Heizungsanordnung mit PTC-Element, insbesondere für ein Kraftfahrzeug
EP03292474A EP1523225B1 (fr) 2003-10-07 2003-10-07 Dispositif de chauffage comprenant des éléments PTC, en particulier pour véhicules à moteurs
AT03292474T ATE453306T1 (de) 2003-10-07 2003-10-07 Heizungsanordnung mit ptc-element, insbesondere für ein kraftfahrzeug
JP2006529988A JP2007507384A (ja) 2003-10-07 2004-09-15 Ｐｔｃ素子を有する特に自動車用の暖房装置
PCT/EP2004/010328 WO2005039242A1 (fr) 2003-10-07 2004-09-15 Dispositif de chauffage pourvu d'un element ptc, conçu en particulier pour un vehicule automobile
CNB2004800291073A CN100488323C (zh) 2003-10-07 2004-09-15 用于汽车的带有ptc元件的取暖装置
US10/574,543 US7759610B2 (en) 2003-10-07 2004-09-15 Heating assembly comprising a PTC element, in particular for a motor vehicle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP03292474A EP1523225B1 (fr) 2003-10-07 2003-10-07 Dispositif de chauffage comprenant des éléments PTC, en particulier pour véhicules à moteurs

Publications (2)

Publication Number Publication Date
EP1523225A1 EP1523225A1 (fr) 2005-04-13
EP1523225B1 true EP1523225B1 (fr) 2009-12-23

Family

ID=34307027

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03292474A Expired - Lifetime EP1523225B1 (fr) 2003-10-07 2003-10-07 Dispositif de chauffage comprenant des éléments PTC, en particulier pour véhicules à moteurs

Country Status (7)

Country Link
US (1) US7759610B2 (fr)
EP (1) EP1523225B1 (fr)
JP (1) JP2007507384A (fr)
CN (1) CN100488323C (fr)
AT (1) ATE453306T1 (fr)
DE (1) DE50312260D1 (fr)
WO (1) WO2005039242A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3133897A1 (fr) 2015-08-18 2017-02-22 Mahle International GmbH Dispositif de chauffage electrique et electronique de commande
DE102021204888A1 (de) 2021-05-12 2022-11-17 Mahle International Gmbh PTC-Heizelement

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2897744B1 (fr) * 2006-02-17 2008-05-09 Valeo Systemes Thermiques Chassis porteur d'elements chauffants pour un radiateur electrique d'une installation de ventilation, de chauffage et/ou de climatisation.
EP2083607A1 (fr) 2008-01-23 2009-07-29 Behr France Rouffach SAS Dispositif de chauffage en particulier d'un véhicule automobile
DE102010020070A1 (de) * 2010-05-09 2011-11-10 Esw Gmbh Heizmodul zur Erwärmung strömender Medien und Verfahren zu seiner Herstellung
DE102012107985B4 (de) * 2012-08-29 2023-06-22 Borgwarner Ludwigsburg Gmbh Heizstab
EP3401617A1 (fr) * 2017-05-12 2018-11-14 Mahle International GmbH Dispositif de chauffage électrique
EP3530503A1 (fr) * 2018-02-26 2019-08-28 MAHLE International GmbH Chauffage électrique

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DE10144757B4 (de) 2001-09-11 2006-03-30 Webasto Ag Zusatzheizung für Personenfahrzeuge
US4865039A (en) * 1985-08-21 1989-09-12 Spring Creek Institute Dry electrode system for detection of biopotentials and dry electrode for making electrical and mechanical connection to a living body
JPH01294393A (ja) * 1988-05-20 1989-11-28 Matsushita Electric Ind Co Ltd 面状採暖具の接着方法
JPH0253628A (ja) * 1988-08-17 1990-02-22 Texas Instr Japan Ltd 空気加熱装置
JPH0320378A (ja) * 1989-06-17 1991-01-29 Fujikura Ltd 導電性接着剤
CN2080482U (zh) * 1990-07-23 1991-07-10 刘振荣 汽车电暖器
US5211174A (en) * 1990-09-14 1993-05-18 Physiometrix, Inc. Low impedance, low durometer, dry conforming contact element
CN2125519U (zh) * 1992-06-29 1992-12-23 北京汽车空调制造厂 汽车空调器
US5856773A (en) * 1996-11-04 1999-01-05 Raychem Corporation Circuit protection device
JPH10208902A (ja) * 1997-01-21 1998-08-07 Tdk Corp 有機ｐｔｃサーミスタの製造方法
JPH11186003A (ja) * 1997-12-25 1999-07-09 Yazaki Corp Ｐｔｃ素子の放熱構造
JPH11214203A (ja) * 1998-01-29 1999-08-06 Unitika Ltd Ｐｔｃ素子及びその製造方法
CN2318068Y (zh) * 1998-04-09 1999-05-12 李有德 汽车保温罩
JPH11308763A (ja) * 1998-04-22 1999-11-05 Ngk Insulators Ltd Ｐｔｃ素子を備えた限流器およびこの限流器を備えた遮断器
JP4092805B2 (ja) * 1999-03-19 2008-05-28 株式会社デンソー 車両用空調装置
EP1182908B1 (fr) * 2000-08-25 2003-04-23 Catem GmbH & Co.KG Elément chauffant PTC employant un adhésif
JP2002367810A (ja) * 2001-06-11 2002-12-20 Nec Tokin Corp 高分子ｐｔｃ素子及びその製造方法
JP2003037002A (ja) * 2001-07-24 2003-02-07 Mitsubishi Electric Corp 限流器とその製造方法
US6659783B2 (en) * 2001-08-01 2003-12-09 Tyco Electronics Corp Electrical connector including variable resistance to reduce arcing
JP5087888B2 (ja) 2006-08-28 2012-12-05 ソニー株式会社 固体撮像装置及びその製造方法

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3133897A1 (fr) 2015-08-18 2017-02-22 Mahle International GmbH Dispositif de chauffage electrique et electronique de commande
DE102015215748A1 (de) 2015-08-18 2017-02-23 Mahle International Gmbh Elektrische Heizeinrichtung und Ansteuerungselektronik
DE102021204888A1 (de) 2021-05-12 2022-11-17 Mahle International Gmbh PTC-Heizelement

Also Published As

Publication number Publication date
WO2005039242A1 (fr) 2005-04-28
JP2007507384A (ja) 2007-03-29
US7759610B2 (en) 2010-07-20
EP1523225A1 (fr) 2005-04-13
ATE453306T1 (de) 2010-01-15
CN1902983A (zh) 2007-01-24
DE50312260D1 (de) 2010-02-04
US20070000902A1 (en) 2007-01-04
CN100488323C (zh) 2009-05-13

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