EP1182908B1 - Elément chauffant PTC employant un adhésif - Google Patents

Elément chauffant PTC employant un adhésif Download PDF

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Publication number
EP1182908B1
EP1182908B1 EP00118502A EP00118502A EP1182908B1 EP 1182908 B1 EP1182908 B1 EP 1182908B1 EP 00118502 A EP00118502 A EP 00118502A EP 00118502 A EP00118502 A EP 00118502A EP 1182908 B1 EP1182908 B1 EP 1182908B1
Authority
EP
European Patent Office
Prior art keywords
ptc
heating device
adhesive
elements
sides
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
EP00118502A
Other languages
German (de)
English (en)
Other versions
EP1182908A1 (fr
Inventor
Franz Bohlender
Kurt Walz
Josef David
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.)
Catem GmbH and Co KG
Original Assignee
Catem GmbH and Co KG
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
Application filed by Catem GmbH and Co KG filed Critical Catem GmbH and Co KG
Priority to EP00118502A priority Critical patent/EP1182908B1/fr
Priority to AT00118502T priority patent/ATE238639T1/de
Priority to DE50001877T priority patent/DE50001877D1/de
Priority to ES00118502T priority patent/ES2194658T3/es
Priority to JP2001245467A priority patent/JP2002141203A/ja
Publication of EP1182908A1 publication Critical patent/EP1182908A1/fr
Application granted granted Critical
Publication of EP1182908B1 publication Critical patent/EP1182908B1/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
    • 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
    • H05B3/10—Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor
    • H05B3/12—Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor characterised by the composition or nature of the conductive material
    • H05B3/14—Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor characterised by the composition or nature of the conductive material the material being non-metallic

Definitions

  • the invention relates to a PTC heating device according to the Preamble of claim 1.
  • Heaters For use in motor vehicles, especially with consumption-optimized ones Internal combustion engines, heaters or radiators are used Heating of interior and engine used. Heaters, however, are also suitable for other purposes in a wide range of applications, for example for house installations (room air conditioning), industrial plants etc..
  • DE-C1 42 25 990 describes a process for the production of electrical Heaters known that have PTC elements.
  • the PTC elements are glued in the heater.
  • the adhesive is applied to the PTC elements applied separately. This method is disadvantageous in particular, that the manufacturing process of such heaters is very is complex since each PTC element is individually provided with adhesive got to.
  • the object of the invention is therefore to provide a PTC heating device which is easier to manufacture.
  • a PTC heating element constructed in this way is that its manufacturing process is very easy to industrialize. Besides, is the thermal resistance from the PTC element via the adhesive to the outside very low. This is due to a homogeneous connection between the PTC electrode and the contact plate caused by the bumps be balanced.
  • Another advantage of the PTC heating device according to the invention is that the different. Expansion coefficient of the PTC ceramic and the Contact sheets especially thanks to the metal foil with adhesive on both sides be well balanced.
  • the structure according to the invention also causes very good mechanical strength and is especially against environmental influences such as moisture, sulfur and salt and against reagents such as oils, cleaners etc. (according to the basic environmental test procedures according to DIN IEC 68, part 2 - ff.) Resistant.
  • Such a heating strip made of PTC elements with a frame as a stable support is on each side of a PCT element glued with a metal foil coated on both sides with adhesive.
  • Such an intermediate product is particularly easy to handle and allows one extensive industrialization of the manufacture of PTC heating devices.
  • the contact plate can also be designed as a heat-conducting element.
  • FIG. 2 shows an example of an embodiment of the invention Heater.
  • the device consists of a layering or stacking prefabricated radiator assemblies, between which PTC elements for Heat generation are provided.
  • a detailed view of the PTC heater is shown in Figure 1. It contains the mechanical fixation of the PTC elements 3 shown.
  • the PTC elements 3 can be both disc-shaped also be cuboid.
  • There are 3 on both sides of the PTC elements Contact plates 1a, 1b arranged. These contact plates 1a, 1b are used for Power supply for the PTC elements 3.
  • a positioning frame 4 can be provided.
  • Such a position frame is closed, for example, in the lower part of FIG. 3 detect.
  • the position frame shown has four cutouts 5 Recording the PTC elements 3.
  • the number of PTC elements per Position frame can deviate from the representation in FIG. 3 any values accept.
  • the recesses 5 are preferably as openings executed, but they can also be designed in the form of depressions.
  • the position frame 4 is preferably made of plastic, such as, for example Polyamide. To achieve increased mechanical stability, he can with the help reinforced by glass fibers.
  • Low voltage PTC elements are preferably made with a voltage of 12 V to 500 V.
  • the PTC elements are generally thick from 1.4 mm or even only from 1.1 mm.
  • the position frame 4 instructs its side edges have 6 bulges that create a noiseless air flow allow.
  • contact plates or electrodes 1a, 1b are on both sides flat sides of the PTC elements.
  • metal foils 2a, 2b are used, both sides with adhesive are concealed.
  • the metal foil is an electrically conductive foil that for example made of aluminum, copper or brass. This slide is coated on both sides with acrylic adhesive.
  • the metal foil 2a, 2b makes contact with the Adhesive on the one hand the PTC element 3 and on the other hand a contact plate 1a, 1b.
  • the electrically conductive film can also do this be used directly with the heat-conducting element, e.g. a corrugated fin, as shown in Fig. 3, are glued so that the corrugated fin 7 to Heat dissipation and current supply to the PTC elements is used.
  • the contact plate is not directly connected to the PTC elements connected, but via the corrugated fin elements 7.
  • a contact plate preferably arranged between two corrugated fin elements on the each other are connected to PTC elements.
  • PTC elements are with glued to a corrugated fin element, the corrugated fin element is on the the PTC elements opposite side with a contact plate or Electrode plate connected for current introduction (preferably also by means of a metal foil), on the other side of the electrode sheet is one further corrugated fin arranged, which in turn on the opposite side is glued with PTC elements.
  • the contact plate 8 takes over at the same time the function of a radiator sheet.
  • a Lamella end limit 9 with an electrical tab 10 for Power introduction connected in one piece.
  • FIG. 2 shows an embodiment of the heating device according to the invention.
  • the Device consists of a layering or stacking of prefabricated Radiator assemblies that form a total of three heating levels. In this In the exemplary embodiment, a total power of 1000 W is specified. Other Designs have PTC elements with a total output of up to to 2000 W. In such a layered heater, the PTC elements in a "clamping package" with the remaining elements of the heater held. The clamp acts so that it holds all the elements together and stands vertically on the contact surfaces of the PTC element.
  • the outer heating stages each have only one PTC row 11.
  • the middle ones Heating stages have two PTC rows 12.
  • the assemblies are held in a frame made of side rails 14 and longitudinal rails 15. Electrical connecting tabs 16 project laterally through one of the side rails 14 for contacting the contact plates.
  • the metal foil 2a, 2b shown in FIG. 1 is already in the delivery state laminated on both sides with adhesive.
  • the adhesive sides preferably covered with an easy-to-remove silicone paper. In order to unproblematic handling before and during production is guaranteed, since the adhesive with the cover, especially the silicone paper, is not a firm one Connection comes in.
  • the PTC elements are separated, sometimes even handmade, with layers of adhesive. Manufacturing tolerances and However, bumps in these adhesive layers often lead to one poor power line in low voltage applications of 12 up to 42 V, which are caused by unequal adhesive layer thicknesses.
  • the metal foil according to the invention is provided on both sides with an adhesive film.
  • Adhesives are, for example, epoxy glue, silicone glue and acrylic glue suitable.
  • An acrylic adhesive has particularly advantageous properties because it in operation at the elevated heating temperatures becomes soft and the This further reduces the layer thickness of the adhesive film during operation.
  • the adhesive has a layer thickness of 0.01 mm to 0.1 mm, preferably 40 ⁇ m.
  • the industrial production of the metal foils allows the application such thin adhesive layers and thus leads, among other things, to a special one low heat transfer resistance from the PTC elements to the Heat-conducting elements.
  • the PTC heating strip is then attached to the contact plates 1a and 1b attached.
  • the contact plates act on corrugated fin elements (so-called fins).
  • fins corrugated fin elements
  • This installation of a PTC heating device according to the invention is dispensed with any coating processes for fastening the PTC elements.
  • the Use of prefabricated, narrow metal foil strips, which are used on both sides Are provided, allows extensive automation and Simplification of the manufacturing process.
  • Fig. 4 gives an exploded view of a heating strip according to the invention again.
  • a PTC heating strip according to the invention consists of a Position frame 4 with recesses 5.
  • the recesses 5 are preferably punched out of the frame 4.
  • the position frame 4 is preferably a double T plastic profile.
  • FIGS. 3 and 4 are the T-ends 6 each on the long sides of the frame arranged.
  • PTC elements 3 are in the recesses in this position frame used.
  • the PTC elements 3 on the top and bottom provided with double-sided adhesive metal foils 2a, 2b.
  • the PTC heating strip produced in this way enables a particularly simple, Industrialized production of a PTC heating device according to the invention.

Landscapes

  • Resistance Heating (AREA)
  • Direct Air Heating By Heater Or Combustion Gas (AREA)
  • Thermistors And Varistors (AREA)
  • Apparatuses And Processes For Manufacturing Resistors (AREA)

Claims (5)

  1. Elément chauffant à caractéristique PTC (coefficient positif de température), comportant au moins un élément PTC (3) et deux tôles de contact (1a, 1b) établissant le contact avec l'élément PTC (3),
       caractérisé en ce que, pour assurer la liaison de la surface de l'élément PTC (3) avec les tôles de contact (1a, 1b), est prévue une feuille métallique (1a, 1b) enduite d'adhésif sur les deux faces.
  2. Dispositif de chauffage à caractéristique PTC selon la revendication 1, caractérisé en ce que la tôle de contact est réalisée sous la forme d'élément conducteur de la chaleur, de préférence sous la forme de nervure ondulée (7).
  3. Elément chauffant à caractéristique PTC selon la revendication 1 ou 2, caractérisé en ce que la feuille métallique est en aluminium, cuivre ou laiton.
  4. Elément chauffant à caractéristique PTC selon l'une des revendications 1 ou 3, caractérisé en ce que le dispositif de chauffage à caractéristique PTC présente une structure stratifiée, formée d'éléments à caractéristique PTC (3) et d'éléments conducteurs de la chaleur, un élément conducteur de la chaleur étant disposé chaque fois au voisinage des faces plates de l'élément à caractéristique PTC (3).
  5. Ruban chauffant à caractéristique PTC, pour montage dans un élément chauffant à caractéristique PTC, comprenant :
    au moins un élément PTC (3),
    un cadre de positionnement (4) comportant au moins un évidement (5) pour recevoir l'au moins un élément PTC (3),
    une première et une deuxième feuilles métalliques (2a, 2b) revêtues sur les deux faces d'un adhésif, appliquées chacune par collage sur des faces opposées de l'au moins un élément PTC (3).
EP00118502A 2000-08-25 2000-08-25 Elément chauffant PTC employant un adhésif Expired - Lifetime EP1182908B1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
EP00118502A EP1182908B1 (fr) 2000-08-25 2000-08-25 Elément chauffant PTC employant un adhésif
AT00118502T ATE238639T1 (de) 2000-08-25 2000-08-25 Ptc-heizvorrichtung mit klebstoff
DE50001877T DE50001877D1 (de) 2000-08-25 2000-08-25 PTC-Heizvorrichtung mit Klebstoff
ES00118502T ES2194658T3 (es) 2000-08-25 2000-08-25 Dispositivo calefactor de ptc que usa un adhesivo.
JP2001245467A JP2002141203A (ja) 2000-08-25 2001-08-13 Ｐｔｃ加熱装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP00118502A EP1182908B1 (fr) 2000-08-25 2000-08-25 Elément chauffant PTC employant un adhésif

Publications (2)

Publication Number Publication Date
EP1182908A1 EP1182908A1 (fr) 2002-02-27
EP1182908B1 true EP1182908B1 (fr) 2003-04-23

Family

ID=8169659

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00118502A Expired - Lifetime EP1182908B1 (fr) 2000-08-25 2000-08-25 Elément chauffant PTC employant un adhésif

Country Status (5)

Country Link
EP (1) EP1182908B1 (fr)
JP (1) JP2002141203A (fr)
AT (1) ATE238639T1 (fr)
DE (1) DE50001877D1 (fr)
ES (1) ES2194658T3 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005008596B3 (de) * 2005-02-23 2006-05-24 Daimlerchrysler Ag Heizvorrichtung zum Erwärmen eines Luftstroms insbesondere für ein Kraftfahrzeug
WO2006089672A1 (fr) 2005-02-23 2006-08-31 Daimlerchrysler Ag Dispositif de chauffage pour chauffer un flux d'air notamment pour un vehicule automobile
US7759610B2 (en) 2003-10-07 2010-07-20 Behr France Rouffach Sas Heating assembly comprising a PTC element, in particular for a motor vehicle
EP2293648A1 (fr) 2009-09-02 2011-03-09 Behr France Rouffach SAS Caloporteur
DE102021103480A1 (de) 2021-02-15 2022-08-18 Tdk Electronics Ag PTC Heizelement, elektrische Heizvorrichtung und Verwendung eines PTC Heizelements

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100926313B1 (ko) * 2003-03-10 2009-11-12 한라공조주식회사 전열히터
KR100926316B1 (ko) * 2003-03-10 2009-11-11 한라공조주식회사 전열히터
KR100926314B1 (ko) * 2003-03-10 2009-11-12 한라공조주식회사 전열히터
KR100926315B1 (ko) * 2003-03-10 2009-11-12 한라공조주식회사 전열히터
KR100926312B1 (ko) * 2003-03-10 2009-11-12 한라공조주식회사 전열히터
KR100933209B1 (ko) * 2003-04-14 2009-12-22 한라공조주식회사 보조히터 및 이를 이용한 난방용 열교환기
ES2275988T3 (es) * 2003-09-11 2007-06-16 CATEM GMBH & CO. KG Dispositivo calefactor electrico, con elemento calefactor sellado.
EP1523226B1 (fr) 2003-10-07 2014-12-10 Behr France Rouffach SAS Ensemble de chauffage comprenant des éléments PTC, particulièrement pour véhicules à moteurs
JP4403956B2 (ja) * 2004-11-29 2010-01-27 株式会社デンソー 電気ヒータおよび車両用空調装置
KR100831832B1 (ko) 2006-12-27 2008-05-28 모딘코리아 유한회사 피티씨 로드 조립체
EP2296432B1 (fr) * 2009-09-15 2018-01-03 Mahle Behr France Rouffach S.A.S Caloporteur
EP2393336B1 (fr) * 2010-06-04 2017-05-17 Mahle Behr France Rouffach S.A.S Caloporteur
KR101228437B1 (ko) * 2011-02-18 2013-02-01 고범용 Ｐｔｃ를 적용한 가열부와 열전소자를 적용한 냉각부를 동시에 구비한 프레스 금형장치
CN103517469B (zh) 2012-06-27 2015-03-04 比亚迪股份有限公司 一种ptc电热元件、电加热装置以及电动车
FR3072766B1 (fr) * 2017-10-24 2020-07-24 Valeo Systemes Thermiques Unite chauffante, faisceau d'echange de chaleur, dispositif de chauffage electrique et boitier de climatisation associe
DE102022121865A1 (de) 2022-08-30 2024-02-29 Tdk Electronics Ag Monolithisches Funktionskeramikelement und Verfahren zur Herstellung einer Kontaktierung für eine Funktionskeramik

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5326418A (en) * 1992-04-14 1994-07-05 Yeh Yuan Chang Method of making positive-temperature-coefficient thermistor heating element
DE4225990C1 (en) * 1992-08-06 1993-08-05 Tuerk & Hillinger Gmbh, 7200 Tuttlingen, De Mfg. electrical heating device with PTC elements - joined to heat removing elements by conductive adhesive in inner region but by non-conductive adhesive at outer edges
IL121449A0 (en) * 1997-08-01 1998-02-08 Body Heat Ltd Adhesive composition for electrical PTC heating device

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7759610B2 (en) 2003-10-07 2010-07-20 Behr France Rouffach Sas Heating assembly comprising a PTC element, in particular for a motor vehicle
DE102005008596B3 (de) * 2005-02-23 2006-05-24 Daimlerchrysler Ag Heizvorrichtung zum Erwärmen eines Luftstroms insbesondere für ein Kraftfahrzeug
WO2006089672A1 (fr) 2005-02-23 2006-08-31 Daimlerchrysler Ag Dispositif de chauffage pour chauffer un flux d'air notamment pour un vehicule automobile
EP2293648A1 (fr) 2009-09-02 2011-03-09 Behr France Rouffach SAS Caloporteur
DE102021103480A1 (de) 2021-02-15 2022-08-18 Tdk Electronics Ag PTC Heizelement, elektrische Heizvorrichtung und Verwendung eines PTC Heizelements
WO2022171857A1 (fr) 2021-02-15 2022-08-18 Tdk Electronics Ag Élément chauffant à coefficient de température positif (ctp), dispositif de chauffage électrique et utilisation d'un élément chauffant ctp

Also Published As

Publication number Publication date
DE50001877D1 (de) 2003-05-28
JP2002141203A (ja) 2002-05-17
ATE238639T1 (de) 2003-05-15
ES2194658T3 (es) 2003-12-01
EP1182908A1 (fr) 2002-02-27

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