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EP0333906A1 - Résistance chauffante à coefficient de température positif - Google Patents

Résistance chauffante à coefficient de température positif Download PDF

Info

Publication number
EP0333906A1
EP0333906A1 EP88104821A EP88104821A EP0333906A1 EP 0333906 A1 EP0333906 A1 EP 0333906A1 EP 88104821 A EP88104821 A EP 88104821A EP 88104821 A EP88104821 A EP 88104821A EP 0333906 A1 EP0333906 A1 EP 0333906A1
Authority
EP
European Patent Office
Prior art keywords
heating element
ptc heating
cover plate
profile body
ptc
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.)
Granted
Application number
EP88104821A
Other languages
German (de)
English (en)
Other versions
EP0333906B1 (fr
Inventor
Franz Bohlender
Norbert Buchlaub
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.)
DBK David and Baader GmbH
Original Assignee
DBK David and Baader GmbH
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 DBK David and Baader GmbH filed Critical DBK David and Baader GmbH
Priority to DE88104821T priority Critical patent/DE3885087D1/de
Priority to EP19880104821 priority patent/EP0333906B1/fr
Publication of EP0333906A1 publication Critical patent/EP0333906A1/fr
Application granted granted Critical
Publication of EP0333906B1 publication Critical patent/EP0333906B1/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
    • H05B3/10—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 thermistor, consisting of an elongated support profile body made of thermally conductive material with at least one contact surface and at least one PTC heating element lying flat on one side in a thermally conductive connection, comprising an upper and a lower electrode plate and at least one PTC arranged in between. Resistance element and a cover body with a surface section lying flat on the other side of the PTC heating element.
  • a radiator of this type is known from DE-OS 30 42 420.
  • PTC radiators of the aforementioned type generally contain several flat heating elements, which, if necessary, of an insulating plate with a through breaks for the admission of the heating elements, are kept at a mutual distance and are clamped between two electrode plates which supply current to the heating elements.
  • the heat developed in the PTC heating elements is emitted to the outside from their flat sides, which requires good heat conduction between the PTC heating element and the carrier profile element.
  • the object on which the invention is based is to propose a PTC thermistor of the type mentioned at the outset, which in a simple manner enables good heat conduction between the PTC heater and the carrier profile body.
  • the PTC thermistor it is easily possible to place the PTC heating element on the support surface of the support profile body, the right and left of the PTC heater element arranged holding rails form the lateral boundary of the PTC heating element.
  • the cover plate is pushed into the holding rails via this PTC heating element, the edge strips of this cover plate being clamped in the holding rails and the middle surface section of the cover plate pressing on the PTC heating element.
  • particularly good heat conduction from the PTC heating element via the cover plate or the carrier profile body into the outer regions of the carrier profile body is ensured, as a result of which the desired heat conduction to the consumer is possible.
  • the holding rails of the support profile body are U-shaped in cross section in their end regions, the beads of the cover plate being arranged in the inserted state between the U-legs of the holding rails and the middle surface section of the cover plate pressing on the PTC heating element.
  • the cover plate is inserted between the U-legs of the holding rails, the beads being inserted between the U-legs and in this way ensuring the bracing of the cover plate with the carrier profile body.
  • a spring plate is additionally provided as a tensioning device for mutually bracing the carrier profile body with the cover plate PTC heating element facing away from the cover plate is inserted into the holding rails of the support profile body.
  • the middle surface section of this spring plate is bulged and presses against the middle surface section of the cover plate in the tensioned state.
  • the spring plate is arranged above the cover plate and, like the cover plate, is clamped to the support profile body via the holding rails. This ensures additional bracing in a particularly simple manner, which ensures the necessary additional bracing at higher temperatures, for example.
  • the carrier profile body advantageously has a channel on its side facing away from the PTC heating element, which has a cross section that is open on the side facing away from the PTC heating element.
  • This particularly preferred embodiment enables good heat transfer to a tubular body, the surface of which is arranged in the interior of the channel.
  • the subject matter of the present invention provides a PTC heating element which makes it possible to dissipate the heat developed on both sides by the PTC heating element. This heat can be emitted via the carrier profile body in a manner known per se.
  • the individual Parts of the radiator can be joined together in a very simple manner, without any bending processes or casting, the individual components only need to be superimposed or pushed in a suitable manner and are then braced against one another.
  • Another advantage of the object according to the invention is that the PTC heating element can be manufactured in automated production systems and supports itself.
  • the PTC heater consists of a support profile body 1, a PTC heating element from in the present case four PTC resistance elements 2, a position plate 3, which secures the PTC resistance elements 2 in their position, and upper and lower Electrode plates 4 and 5 with connecting conductors 6, an insulating film 7 and a cover plate 8.
  • the carrier profile body 1 and the cover plate 8 consist of a highly thermally conductive material, for example as made of aluminum or copper and the PTC heating element is electrically insulated from it by the insulation 7 made of a highly thermally conductive, electrically insulating material.
  • the carrier profile body 1 has the contact surface 10 for receiving the PTC heating element.
  • the holding rails 11 and 12 are arranged, which laterally limit the PTC heating element when it is placed on the supporting surface 10 between these holding rails 11 and 12.
  • the PTC heating element has four PTC resistance elements 2.
  • the position plate 3 has four openings 16, which are intended to accommodate the four PTC resistance elements 2 and are correspondingly adapted to their size.
  • the position plate 3 consists of an insulating material and has notches 17 on both sides of the edges.
  • the electrode plates 4 and 5 serve as contact plates and have lugs 18 and 19 and cutouts 20 and 21, which are angled downwards and upwards at their longitudinal edges, the lugs and the cutouts on the electrode plates being aligned with respect to one another, that after sandwiching the from the electrode plates, the position plate and the PTC resistance elements consisting of the PTC resistance elements and the bending of the lugs 18 and 19 (tabs), the two electrode plates do not touch one another.
  • This structure of the PTC heating element is already known from DE-OS 30 42 420.
  • the PTC heating element shown has the advantage of being able to be produced fully automatically, since it pays for itself after assembly and can therefore be produced in such automated production systems.
  • the heating element After the heating element has been assembled as described, it is wrapped by the insulating film 7 and in this state lies on the contact surface 10 of the carrier profile body 1.
  • the insulating film 7 electrically insulates the heating element from the carrier profile body 1, but ensures good heat transfer. It is therefore made of a highly thermally conductive material.
  • the heating element just described is placed on the support surface 10 of the carrier profile body 1. It is now laterally delimited on both sides by the holding rails 11 and 12, the end regions 13 and 14, which are U-shaped in cross section, projecting beyond the heating element.
  • the cover plate 8 is now inserted between the U-legs of the holding rails 11 and 12, the middle surface section 22 of the cover plate 8 pressing on the PTC heating element.
  • a longitudinal bead 25 or 26 is formed on the edge strips 23 or 24 of the cover plate 8. If the edge strips 23 and 24 of the cover plate 8 are inserted into the holding rails 11 and 12 of the carrier profile body 1, the beads 25 and 26 are arranged between the U-legs of the end regions 13 and 14 of the holding rails 11 and 12 (see Figure 2).
  • the heat given off by the heating element via the electrode plates 4 and 5 and the insulating film 7 is absorbed, on the one hand, directly by the carrier profile body 1 and, on the other hand, by the cover plate 8, from which it is also derived into the carrier profile body 1.
  • FIG. 3 and Figure 4 show another embodiment of the present invention.
  • a spring plate 27 is provided in this embodiment, which is pushed over the cover plate 8.
  • the PTC heating element is omitted in FIG. 3.
  • FIG. 4 it can be seen that the connecting conductors 6, which lead to the PTC heating element, are arranged below the cover plate 8 and consequently the PTC heating element rests on the contact surface 10 of the carrier profile body 1a.
  • the support profile body 1 a shown in FIG. 3 and FIG. 4 is configured differently on the side facing away from the PTC heating element than the support profile body 1 shown in FIG. 1 and FIG. 2.
  • the holding rails 11 and 12 are designed analogously and that Cover plate 8 with its edge strips 23 and 24 also between the U-legs of the end regions 13 and 14 of the holding rails 11 or 12 are inserted.
  • the spring plate 27 is arranged above the cover plate 8, the central surface section 28 of which is bulged and presses on the central surface section 22 of the cover plate 8 in the inserted state. In the tensioned state shown in FIG. 4, this spring plate 27 brings about an even stronger tensioning of the cover body 8 with the carrier profile body 1a. As a result, the desired heat conduction from the PTC element to the cover plate and onto the carrier profile body is reinforced.
  • the shape of the spring plate 27 is substantially adapted to the surface of the cover plate 8 in the edge regions.
  • This spring plate acts as a prestressed steel spring and it is useful to use such a spring plate in addition to the bracing at higher temperatures.
  • the cover plate 8 usually consists of aluminum, the beads 25 and 26 being formed in the aluminum in a manner which is conventional per se.
  • the carrier profile body is usually designed as a standing profile.
  • the carrier profile body 1 a has a channel 29 on its side facing away from the PTC heating element, which channel has a cross section that on the PTC heating element element opposite side is open.
  • the underside or the lower part of the carrier profile body can also have any other shape, depending on how the outline of the body to be heated is designed.
  • an insulating film can be dispensed with if the carrier profile body consists of an insulating material, for example a ceramic material.
  • the insulation can also be carried out by means of insulating plates, as is known per se from the prior art.
  • the dimensions of the holding rails and the cover plate or the spring plate are matched to one another in such a way that a good fit is achieved so that sufficiently large thermal bridges are created.
  • a certain elasticity of the material of the carrier profile body can also contribute to this, which allows a slight spreading of the U-legs of the end regions 13 and 14 of the holding rails 11 and 12 due to a corresponding fit.

Landscapes

  • Resistance Heating (AREA)
EP19880104821 1988-03-25 1988-03-25 Résistance chauffante à coefficient de température positif Expired - Lifetime EP0333906B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE88104821T DE3885087D1 (de) 1988-03-25 1988-03-25 Kaltleiter-PTC-Heizkörper.
EP19880104821 EP0333906B1 (fr) 1988-03-25 1988-03-25 Résistance chauffante à coefficient de température positif

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP19880104821 EP0333906B1 (fr) 1988-03-25 1988-03-25 Résistance chauffante à coefficient de température positif

Publications (2)

Publication Number Publication Date
EP0333906A1 true EP0333906A1 (fr) 1989-09-27
EP0333906B1 EP0333906B1 (fr) 1993-10-20

Family

ID=8198841

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19880104821 Expired - Lifetime EP0333906B1 (fr) 1988-03-25 1988-03-25 Résistance chauffante à coefficient de température positif

Country Status (2)

Country Link
EP (1) EP0333906B1 (fr)
DE (1) DE3885087D1 (fr)

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3942266C1 (de) * 1989-12-21 1991-03-07 Tuerk & Hillinger Gmbh PTC-Heizkoerper
DE4434613A1 (de) * 1994-09-28 1996-04-04 Behr Gmbh & Co Elektrische Heizeinrichtung, insbesondere für ein Kraftfahrzeug
GB2322275A (en) * 1997-02-18 1998-08-19 Behr Gmbh & Co Securing heating elements in frames
EP1432287A1 (fr) * 2002-12-19 2004-06-23 Catem GmbH & Co.KG Dispositif de chauffage électrique avec boítier
EP1557601A1 (fr) * 2004-01-23 2005-07-27 DBK David + Baader GmbH Clip de chauffage pour une conduite de fluide
EP1674678A1 (fr) * 2004-12-22 2006-06-28 CEBI S.p.A. Dispositif de chauffage pour conduit de ventilation d'un carter de moteur à combustion
EP1691998A1 (fr) * 2003-11-18 2006-08-23 Woory Industrial Company Ltd. Ensemble a tige chauffante et prechauffeur pour vehicules comprenant ledit ensemble
WO2007049746A1 (fr) * 2005-10-28 2007-05-03 Calsonic Kansei Corporation Dispositif de chauffage
EP1916873A1 (fr) * 2006-10-25 2008-04-30 Catem GmbH & Co.KG Elément générateur de la chaleur pour un dispositif chauffant électrique et son procédé de fabrication
WO2008122362A1 (fr) * 2007-04-04 2008-10-16 Beru Aktiengesellschaft Appareil de chauffage électrique, notamment pour une automobile
EP2395295A1 (fr) * 2010-06-11 2011-12-14 Behr GmbH & Co. KG Echangeur de chaleur
EP2474793A1 (fr) * 2011-01-11 2012-07-11 Behr France Rouffach SAS Échangeur de chaleur
CN104823004A (zh) * 2012-10-19 2015-08-05 法雷奥热系统公司 热沉、相关联的供热模块和对应的组装方法
DE102009025474C5 (de) * 2008-12-05 2019-07-18 Hyundai Motor Co. PTC-Heizstab-Anordnung und PTC-Heizgerät
EP3598847A1 (fr) * 2018-07-18 2020-01-22 Eberspächer catem GmbH & Co. KG Élément produisant de la chaleur et son procédé de fabrication
US11317477B2 (en) 2018-03-19 2022-04-26 Borgwarner Ludwigsburg Gmbh Heating device
DE102021112603A1 (de) 2021-05-14 2022-11-17 Stego-Holding Gmbh Heizeinrichtung und Verfahren zur Herstellung einer Heizeinrichtung
USD1040977S1 (en) 2021-11-04 2024-09-03 Stego-Holding Gmbh Convector

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10360159A1 (de) * 2003-12-20 2005-07-21 Eichenauer Heizelemente Gmbh & Co. Kg Profilrohr und Verfahren zum Verspannen von Funktionselementen in einem solchen

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2948591A1 (de) * 1979-12-03 1981-06-11 Fa. Fritz Eichenauer, 6744 Kandel Durchlauferhitzer
DE3022034A1 (de) * 1980-06-12 1981-12-17 Reinhold Ing.(grad.) 6990 Bad Mergentheim Barlian Beheizungsvorrichtung mit kaltleiter-heizelementen
DE8705746U1 (de) * 1987-04-18 1987-06-19 Türk & Hillinger GmbH, 7200 Tuttlingen Selbstregelnde Heizeinrichtung für Rohrsysteme
EP0240447A2 (fr) * 1986-04-04 1987-10-07 Emerson Electric Co. Protecteurs thermiques pour élément PTC
EP0262243A1 (fr) * 1986-10-01 1988-04-06 David & Baader DBK Spezialfabrik elektrischer Apparate und Heizwiderstände GmbH Résistance chauffante à coéfficient de température positif

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2948591A1 (de) * 1979-12-03 1981-06-11 Fa. Fritz Eichenauer, 6744 Kandel Durchlauferhitzer
DE3022034A1 (de) * 1980-06-12 1981-12-17 Reinhold Ing.(grad.) 6990 Bad Mergentheim Barlian Beheizungsvorrichtung mit kaltleiter-heizelementen
EP0240447A2 (fr) * 1986-04-04 1987-10-07 Emerson Electric Co. Protecteurs thermiques pour élément PTC
EP0262243A1 (fr) * 1986-10-01 1988-04-06 David & Baader DBK Spezialfabrik elektrischer Apparate und Heizwiderstände GmbH Résistance chauffante à coéfficient de température positif
DE8705746U1 (de) * 1987-04-18 1987-06-19 Türk & Hillinger GmbH, 7200 Tuttlingen Selbstregelnde Heizeinrichtung für Rohrsysteme

Cited By (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3942266C1 (de) * 1989-12-21 1991-03-07 Tuerk & Hillinger Gmbh PTC-Heizkoerper
DE4434613A1 (de) * 1994-09-28 1996-04-04 Behr Gmbh & Co Elektrische Heizeinrichtung, insbesondere für ein Kraftfahrzeug
US5665261A (en) * 1994-09-28 1997-09-09 Behr Gmbh & Co. Motor vehicle electric heating device having angled off metal heating plates arranged to mutually abut one another at opposite ends
GB2322275A (en) * 1997-02-18 1998-08-19 Behr Gmbh & Co Securing heating elements in frames
GB2322275B (en) * 1997-02-18 2001-01-03 Behr Gmbh & Co Electric heating device,especially for a motor vehicle
CN100401851C (zh) * 2002-12-19 2008-07-09 凯特姆两合公司 带有壳体的电加热器
US7026584B2 (en) 2002-12-19 2006-04-11 Catem Gmbh & Co. Kg Electric heater with housing
EP1432287A1 (fr) * 2002-12-19 2004-06-23 Catem GmbH & Co.KG Dispositif de chauffage électrique avec boítier
EP1691998A1 (fr) * 2003-11-18 2006-08-23 Woory Industrial Company Ltd. Ensemble a tige chauffante et prechauffeur pour vehicules comprenant ledit ensemble
EP1691998A4 (fr) * 2003-11-18 2007-11-07 Woory Ind Co Ltd Ensemble a tige chauffante et prechauffeur pour vehicules comprenant ledit ensemble
EP1557601A1 (fr) * 2004-01-23 2005-07-27 DBK David + Baader GmbH Clip de chauffage pour une conduite de fluide
EP1674678A1 (fr) * 2004-12-22 2006-06-28 CEBI S.p.A. Dispositif de chauffage pour conduit de ventilation d'un carter de moteur à combustion
WO2007049746A1 (fr) * 2005-10-28 2007-05-03 Calsonic Kansei Corporation Dispositif de chauffage
EP1916873A1 (fr) * 2006-10-25 2008-04-30 Catem GmbH & Co.KG Elément générateur de la chaleur pour un dispositif chauffant électrique et son procédé de fabrication
WO2008049619A1 (fr) * 2006-10-25 2008-05-02 Eberspächer Catem Gmbh & Co. Kg Élément producteur de chaleur pour un dispositif de chauffage électrique, et son procédé de fabrication
US8395088B2 (en) 2006-10-25 2013-03-12 Catem Gmbh & Co., Kg Heat generating element and electric auxiliary heater for a motor vehicle with heat generating element
US20110240631A1 (en) * 2007-04-04 2011-10-06 Michael Luppold Electrical heating unit, particularly for cars
WO2008122362A1 (fr) * 2007-04-04 2008-10-16 Beru Aktiengesellschaft Appareil de chauffage électrique, notamment pour une automobile
DE102009025474C5 (de) * 2008-12-05 2019-07-18 Hyundai Motor Co. PTC-Heizstab-Anordnung und PTC-Heizgerät
EP2395295A1 (fr) * 2010-06-11 2011-12-14 Behr GmbH & Co. KG Echangeur de chaleur
EP2474793A1 (fr) * 2011-01-11 2012-07-11 Behr France Rouffach SAS Échangeur de chaleur
CN104823004A (zh) * 2012-10-19 2015-08-05 法雷奥热系统公司 热沉、相关联的供热模块和对应的组装方法
US11317477B2 (en) 2018-03-19 2022-04-26 Borgwarner Ludwigsburg Gmbh Heating device
EP3598847A1 (fr) * 2018-07-18 2020-01-22 Eberspächer catem GmbH & Co. KG Élément produisant de la chaleur et son procédé de fabrication
DE102018212012A1 (de) * 2018-07-18 2020-01-23 Eberspächer Catem Gmbh & Co. Kg Wärmeerzeugendes Element und Verfahren zu dessen Herstellung
CN110740527A (zh) * 2018-07-18 2020-01-31 埃贝赫卡腾有限两合公司 发热元件及其制造方法
CN110740527B (zh) * 2018-07-18 2022-08-30 埃贝赫卡腾有限两合公司 发热元件及其制造方法
DE102021112603A1 (de) 2021-05-14 2022-11-17 Stego-Holding Gmbh Heizeinrichtung und Verfahren zur Herstellung einer Heizeinrichtung
USD1040977S1 (en) 2021-11-04 2024-09-03 Stego-Holding Gmbh Convector

Also Published As

Publication number Publication date
DE3885087D1 (de) 1993-11-25
EP0333906B1 (fr) 1993-10-20

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