EP0379873A2 - Appareil pour chauffeur des gaz - Google Patents

Appareil pour chauffeur des gaz Download PDF

Info

Publication number
EP0379873A2
EP0379873A2 EP90100249A EP90100249A EP0379873A2 EP 0379873 A2 EP0379873 A2 EP 0379873A2 EP 90100249 A EP90100249 A EP 90100249A EP 90100249 A EP90100249 A EP 90100249A EP 0379873 A2 EP0379873 A2 EP 0379873A2
Authority
EP
European Patent Office
Prior art keywords
contact plate
insulating
frame
ptc elements
heating unit
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
EP90100249A
Other languages
German (de)
English (en)
Other versions
EP0379873B1 (fr
EP0379873A3 (en
Inventor
Roland Starck
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.)
Eichenauer Heizelemente GmbH and Co KG
Original Assignee
Fritz Eichenauer 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 Fritz Eichenauer GmbH and Co KG filed Critical Fritz Eichenauer GmbH and Co KG
Publication of EP0379873A2 publication Critical patent/EP0379873A2/fr
Publication of EP0379873A3 publication Critical patent/EP0379873A3/de
Application granted granted Critical
Publication of EP0379873B1 publication Critical patent/EP0379873B1/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
    • 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 device for heating gases, in particular air, with a heating unit with a receiving part, at least one PTC element, at least one insulating frame part surrounding it, at least one contact plate and at least one insulating pad, the PTC element being surrounded by the frame part Receiving part lies and a contact plate rests on at least one flat side and is covered by an insulating pad.
  • Such heaters have hitherto become known as wire radiators and tubular heaters.
  • the heating wires are guided over long distances in such a way that the air and a gas can pass between them and be heated.
  • the heating wire is embedded in an insulating compound inside a tube.
  • the pipes To heat air or gas, the pipes must be provided with heat dissipation fins. This is done in part by the fact that the fins are formed in one piece with the tubular jacket.
  • slotted tubes were provided, which were pressed against seated fins by expansion, in order to create one to create a firm connection, the actual tubular heating element being inserted into the expanded slotted tube.
  • Tubular heaters were partially wrapped by helices.
  • the tubular heating element is formed by profiled sheet metal strips which are connected to one another by folded seams and which project laterally from the tubular heating element as ribs extending in the longitudinal direction thereof. Since the fins are not perpendicular to the axis of the tubular heater, only an unsatisfactory heat emission can be achieved.
  • fins extending perpendicular to its axis are welded to an outer jacket which is subsequently pressed onto a ceramic part containing the heating wires by being pressed in or deep-rolling.
  • Self-stabilizing radiators with PTC elements have been provided as a heat generating element for some time.
  • the heat generation in the PTC elements depends on their temperature, decreases with a higher temperature and thus on how effectively the heat generated initially is dissipated becomes. So far, PTC elements have been used to heat liquids or solid bodies, such as in soldering irons or curlers.
  • the invention has for its object to provide a device for heating gases, in particular air, of the type mentioned with a PTC element as a heating element, which ensures effective heat input to the air surrounding the device or a gas, so that a sufficient Heating power is reached.
  • this object is achieved by a device of the type mentioned, which thereby ge is characterized by the fact that heat-emitting slats are clamped on this heating unit.
  • a heating unit based on a PTC element can be provided with heat release fins which, on the one hand, sit securely firmly in order to achieve sufficient heat dissipation from the actual heating unit to the heat release fins and from them to the surrounding air, and on the other hand arise when the temperature changes Sufficiently compensates for dimensional changes so that a permanent fit of the heat-emitting fins on the actual heating unit is ensured.
  • This is further reinforced by the fact that the pressing force of the heating unit against the heat-emitting fins is naturally increased when the temperature rises.
  • the device according to the invention for heating gases is formed in that the lamellae have openings surrounding the heating unit, which are delimited by two opposite lugs which are bent out of the plane of the lamellae and which are at a distance from the lamella body in their connecting region corresponds to the height of the heating unit, while the clear distance between the ends of the tabs is less than the height of the heating unit.
  • the lamellae have beads, in particular the beads being directed perpendicular to the tabs.
  • the design stabilizes the heat dissipation fins and in particular prevents them from fluttering or swinging when air is flowing through, in particular if this is forced through the fins by forced convection, with the resulting flapping preventing the noise from being caused by the flapping.
  • the receiving part is designed as a U-profile, with cover plates resting on the insulating pad, which usually consists of relatively break-sensitive material, such as metal oxides, so that the tabs of the slats on the one hand directly on these cover plates and on the other Fit the web of the U-profile and press both against each other with the interposition of the insulating plates and the PTC element.
  • Slats, receiving part and cover plate are preferably made of aluminum or an aluminum alloy, such as in particular spring-hard aluminum with a hardness of F28 with a temperature resistance of over 400 ° Celsius.
  • the PTC elements are preferably surrounded by a frame part on their narrow sides, which has transverse webs which keep the PTC elements at a distance from one another.
  • the insulating pad preferably consists of individual insulating plates, the width of which corresponds to the frame width and the length of which essentially corresponds to that of the PTC elements plus the transverse web width of the frame part, so that the insulating pad parts adjoin one another in the longitudinal direction.
  • the cover plates correspond essentially to the insulation pads in their overlap.
  • a preferred development provides a device with a holding part for PTC elements with an insulating frame and at least one contact plate, in which the contact plate is firmly connected to the insulating frame.
  • an insulating frame surrounding the PTC elements on their narrow sides is not sufficient, since even if a base is held against it from below, for example a contact plate, there is a risk that that the insulating frame and documents slip relative to each other, so that a single PTC block can fall out of the frame.
  • the invention sees in this Training therefore before that the contact plate and the insulating frame are firmly connected.
  • fixed means that these are connected to one another in such a way that they cannot be detached without great effort, in particular cannot accidentally detach from one another or move relative to one another.
  • a screw connection could also be provided.
  • the contact plate is riveted to the insulating frame in the region of one of its end faces.
  • the fixed contact plate is arranged on one side of the frame so that the individual PTC elements or stones can be inserted into the frame part from the opposite side and prevented from falling through the contact plate.
  • the further contact element such as a further contact plate or a profile contact body with a U-cross section
  • the further contact element can be placed on the side of the frame opposite the fixed contact plate connected to the frame and the inserted PTC elements, whereupon for further assembly, namely if necessary, placing insulating plates on the contact plate, these additional protective elements, such as stable covering plates, which protect the insulating body, can be placed.
  • the holding part provides that a connecting lug is riveted to the contact plate and / or that a connecting lug is formed in one piece with the contact plate. If the contact plate is already firmly connected to the insulating frame, it makes sense to then also form a connecting lug, namely the one connected to the contact plate, in one piece with the latter and / or also to firmly connect it to the insulating frame, such as riveting.
  • another extremely preferred embodiment provides that at the end of the insulating frame opposite the fixed connection between the contact plate and the insulating frame, a bracket rising from the plane of the same is formed, which overlaps the end of the contact plate opposite the fastening point, in particular the Contact plate between its end areas is free.
  • the contact plate consists of flexible sheet metal.
  • a preferred embodiment is characterized in that the contact plate is convexly bent and prestressed towards the frame part.
  • a further development provides that in the vicinity of the fastening point on the side of the frame facing the contact plate, cams extending from the plane thereof are provided. In this way, insulating plates lying on the side of the contact plate facing away from the frame can be held against axial displacement.
  • the frame has cross bars.
  • the individual PTC elements are each in individual recesses in the frame part individually bordered and added.
  • the heating device 1 has an aluminum U-profile 2, which preferably has a hardness F28 and a temperature resistance of over 400 ° Celsius.
  • a connecting tab 6 is fastened to its outer wall 4, e.g. soldered or spot welded.
  • the holding part 11 has a frame part 12 made of insulating material such as Rayton.
  • the frame part 12 is formed from longitudinal legs 13, on the end faces of which are formed transverse legs 14, 15, and in the exemplary embodiment shown from transverse webs 16. Furthermore, after an end face 17, it has a U-shaped bracket 18 rising from its plane, which is formed in one piece with its legs 19 on the longitudinal legs 13 of the frame part 12, while a web 21 extends across the width of the frame part 12.
  • a contact plate 22 extends over the frame part 12. In the exemplary embodiment shown, the contact plate 22 is designed as a spring plate. So it is flexible and compliant.
  • the contact plate 22 engages under the web 21 of the bracket 18 and is held at this end 27 in this way by the bracket 18.
  • the contact plate 22 is preferably convexly bent toward the frame 12 and is thus prestressed.
  • the frame 12 has in the region of its end 23 on the same side, facing the contact plate 23, on which the bracket 18 is also seated, on its longitudinal legs 13 two cams 28 which in the longitudinal direction rest on the contact plates, on its side facing away from the frame Hold the insulating parts between the cams 28 and the bracket 18 in the longitudinal direction.
  • PTC elements 31 are inserted into the recesses 29 of the frame 12 delimited by the legs 13, 14, 15 and the webs 16.
  • Individual insulating parts 32 lie on the contact plate 22, which form an insulating layer overall.
  • the insulating parts 32 essentially have a length corresponding to the PTC elements 31. Their width corresponds to the clear distance between the legs 7 of the U-profile 2.
  • the insulating parts are preferably made of heat-conductive, electrically-iso metal oxide, such as magnesium, barium or preferably aluminum oxide.
  • Stable cover plates 33 for example made of aluminum, continue to rest on the insulating parts 32, the width and length of which correspond to the width and length of the insulating parts 32.
  • the height of the arrangement of PTC element 31, contact plate 22 and insulating part 32 is slightly below the clear length of the legs 7 of the U-profile 2, while the height of the aforementioned parts plus the height of the cover plate 33 is slightly above the said clear length of the legs 7 lies.
  • Lamellas 41 are frictionally seated on the heating unit described above for giving off heat to the surrounding air or gas.
  • the lamellae 41 have an opening 42 which is delimited, inter alia, by two opposite lugs 43 which are bent out of the main plane of the lamellae 41.
  • the distance A is at least the height of the heating unit from leg 8 of the U-profile 2, a PTC element 31, the contact plate 22, the insulating part 32 and the cover plate 33, during the Clearance D of the end faces 46 of the tabs 43 lies below the height of the arrangement described above and thus below the distance A, as long as the lamella 41 has not yet been pushed over the heating unit defined above.
  • the slats 41 consist of aluminum sheet. For stiffening, they have stiffening beads 48 parallel to the longitudinal edges 47, which are embossed out of the main plane of the slats 41. This on the one hand increases the heat dissipation surface slightly, but it is essential that this stiffening prevents the fins from fluttering when air flows through them, which could lead to noise. Due to the specified dimensions, the slats are pushed frictionally over the heating unit and sit on it with a clamp.
  • the insulating plates 32 and the cover plates 33 are also formed in a subdivided manner good contact between the PTC elements 31 and, on the one hand, the leg 8 of the U-profile 2 and, on the other hand, via the contact plate 22 with the insulating part 32 and the cover plates 33 lying above it is achieved by means of the lamellae 41.
  • the tabs 43 With their side 49 facing the heating unit, are pressed largely flat against the top of the cover plate 33 or the outside of the leg 8 and are in contact with these parts, so that there is also a reliable heat transfer to the fins and heat emission the air is assured.
  • the tabs 46 bent out of the plane of the lamellae 41 inevitably keep the lamellae at a distance from one another, that is to say they form spacers, so that the lamellae are prevented from lying closely against one another, rather they always have a defined relative distance. While only two fins sitting on the heating unit are shown in FIG. 1, a plurality of fins 41 actually sit side by side on it, so that a heating register with a plurality of fins 41 is formed.
  • the holding part 11 is produced from the frame part 12 and the contact plate 22 by firmly connecting (riveting) the two parts together and simultaneously riveting the connecting tab 26.
  • the PTC elements 31 are then inserted into the frame part 12 from the side facing away from the contact plate 22, wherein they are held by the contact plate 22 firmly connected to the frame part 12 and prevented from falling through.
  • the section of the U-shaped profile body is placed on the side of the frame part 12 facing away from the contact plate 22, the inside of its web 8 coming into contact with the PTC elements 31 and the legs 7 the frame 12, in particular its longitudinal leg 13 and the Cover plate 22, reach over to the side.
  • the unit created so far is rotated by 180 ° so that the web 8 of the profile part 2 comes down and now carries the holding part 11 and the PTC elements lying in the frame 12, while the legs 7 protrude above the holding part 11.
  • the insulating plates 32 and the cover plates 33 are then placed on the contact plate 22 between the legs 7.
  • the slats 4 are pushed onto the unit assembled to this extent, which due to their clamping sides then bring about a fixed arrangement which can no longer fall apart.

Landscapes

  • Resistance Heating (AREA)
EP90100249A 1989-01-26 1990-01-06 Appareil pour chauffeur des gaz Expired - Lifetime EP0379873B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3902206 1989-01-26
DE3902206A DE3902206A1 (de) 1989-01-26 1989-01-26 Vorrichtung zum erhitzen von gasen

Publications (3)

Publication Number Publication Date
EP0379873A2 true EP0379873A2 (fr) 1990-08-01
EP0379873A3 EP0379873A3 (en) 1990-10-03
EP0379873B1 EP0379873B1 (fr) 1994-11-30

Family

ID=6372793

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90100249A Expired - Lifetime EP0379873B1 (fr) 1989-01-26 1990-01-06 Appareil pour chauffeur des gaz

Country Status (4)

Country Link
US (1) US4990748A (fr)
EP (1) EP0379873B1 (fr)
JP (1) JP2718764B2 (fr)
DE (2) DE3902206A1 (fr)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0582124A1 (fr) * 1992-08-05 1994-02-09 PAUL RITZAU PARI-WERK GmbH Dispositif d'atomiseur avec un élément de chauffage
FR2722937A1 (fr) * 1994-05-06 1996-01-26 Michel Jean Francois Dispositif de chauffage permettant d'economiser de l'energie
EP0895440A2 (fr) * 1997-08-01 1999-02-03 Body Heat Ltd Elément de chaufage électrique
EP1061776A1 (fr) 1999-06-15 2000-12-20 David & Baader DBK Spezialfabrik elektrischer Apparate und Heizwiderstände GmbH Dispositif de chauffage destiné au réchauffement de l'air
FR2806967A1 (fr) * 2000-03-30 2001-10-05 Eichenauer Gmbh & Co Kg F Dispositif de chauffage de l'habitacle de vehicules automobiles
DE10031541B4 (de) * 1999-07-06 2007-04-12 Fritz Eichenauer Gmbh & Co. Kg Vorrichtung zum Vorheizen von Dieselkraftstoff
EP2636981A1 (fr) 2012-03-09 2013-09-11 DBK David + Baader GmbH Dispositif de chauffage, élément de lamelle pour dispositif de chauffage et procédé de fabrication d'un élément de lamelle
DE102012106157A1 (de) 2012-07-09 2014-01-09 Dbk David + Baader Gmbh Lamellenelement und Verfahren zur Herstellung des Lamellenelements

Families Citing this family (23)

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Publication number Priority date Publication date Assignee Title
DE4206469C1 (en) * 1992-03-02 1993-08-05 Tuerk & Hillinger Gmbh, 7200 Tuttlingen, De Electrical heating element for heating gas-form media - has PTC elements arranged between metallic, strip-shaped heat conduction elements with several holes on upper surfaces turned away from PTC elements
US5243683A (en) * 1992-07-09 1993-09-07 Yang Chiung Hsiang Laminar streamflow-guided hair dryer with finned PTC heating means
DE4434613A1 (de) * 1994-09-28 1996-04-04 Behr Gmbh & Co Elektrische Heizeinrichtung, insbesondere für ein Kraftfahrzeug
DE29719639U1 (de) * 1997-11-05 1998-12-03 Eichenauer Gmbh & Co Kg F Vorrichtung zum Beheizen von Innenräumen, insbesondere von Kraftfahrzeugen
SI1327834T1 (en) * 2002-01-15 2005-02-28 David + Baader Dbk Spezialfabrik Elektrischer Apparate Und Radiating element for a heating apparatus
DE10301056A1 (de) 2003-01-14 2004-07-22 Denso Automotive Deutschland Gmbh Heizvorrichtung mit PTC-Elementen
DE10316908A1 (de) * 2003-04-12 2004-10-21 Eichenauer Heizelemente Gmbh & Co. Kg Heizvorrichtung
EP1467599B1 (fr) * 2003-04-12 2008-11-26 Eichenauer Heizelemente GmbH & Co.KG Dispositif pour l'admission des éléments de chauffe en céramique et procédé pour la production de tels
DE20312313U1 (de) 2003-08-09 2004-12-16 Eichenauer Heizelemente Gmbh & Co. Kg Vorrichtung zum Erwärmen von Gasströmen
KR100609452B1 (ko) * 2005-05-20 2006-08-03 모딘코리아 유한회사 피티씨 로드 조립체 및 이를 포함하는 차량용 프리히터
DE102005030392A1 (de) * 2005-06-29 2007-01-04 BSH Bosch und Siemens Hausgeräte GmbH Hausgerät sowie Garguträger-Haltevorrichtung für ein Hausgerät
JP2007024491A (ja) * 2005-07-15 2007-02-01 Modine Korea Llc Ｐｃｔロッド組立体及びこれを備える車両用のプレヒーター
EP1768457B1 (fr) * 2005-09-23 2008-05-14 Catem GmbH & Co.KG Element chauffant d'un dispositif de chauffage
EP2025541B1 (fr) * 2007-07-18 2013-01-02 Eberspächer catem GmbH & Co. KG Elément d'un dispositif de chauffage produisant de la chaleur électrique
EP2017546B1 (fr) * 2007-07-18 2016-04-13 Eberspächer catem GmbH & Co. KG Procédé de fabrication d'un dispositif de chauffage électrique tout comme dispositif de chauffage électrique
ES2349351T3 (es) * 2007-07-20 2010-12-30 EBERSPÄCHER CATEM GMBH & CO. KG Dispositivo eléctrico de calefacción en especial para vehículos a motor.
DE102007040408A1 (de) * 2007-08-27 2009-03-05 Epcos Ag Flexibles Heizmodul und Verfahren zur Herstellung
DE102012109801B4 (de) * 2012-10-15 2015-02-05 Borgwarner Ludwigsburg Gmbh Elektrische Heizvorrichtung
DE102012220432A1 (de) * 2012-11-09 2014-05-15 Mahle International Gmbh Vorheizeinrichtung für eine Kraftstoffeinspritzanlage
DE102012220433A1 (de) * 2012-11-09 2014-05-15 Mahle International Gmbh Kraftstoffeinspritzanlage mit Vorheizeinrichtung
DE102012220429A1 (de) * 2012-11-09 2014-05-15 Mahle International Gmbh Vorheizeinrichtung für eine Kraftstoffeinspritzanlage
DE102018101453A1 (de) * 2018-01-23 2019-07-25 Borgwarner Ludwigsburg Gmbh Heizvorrichtung und Verfahren zum Herstellung eines Heizstabes
JP7157607B2 (ja) * 2018-09-26 2022-10-20 三菱重工サーマルシステムズ株式会社 熱媒体加熱装置及び車両用空調装置

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DE2220775A1 (de) * 1972-04-27 1973-11-08 Siemens Ag Elektrischer rippenrohrheizkoerper
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EP0019376A1 (fr) * 1979-04-28 1980-11-26 Murata Manufacturing Co., Ltd. Appareil de chauffage employant un thermistor
CH652551A5 (en) * 1980-10-04 1985-11-15 Loh Kg Rittal Werk Switching cabinet heating apparatus

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JPH0734390B2 (ja) * 1987-09-11 1995-04-12 株式会社村田製作所 正特性サーミスタ装置
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Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2220775A1 (de) * 1972-04-27 1973-11-08 Siemens Ag Elektrischer rippenrohrheizkoerper
DE2845965A1 (de) * 1978-10-21 1980-04-24 Eichenauer Fa Fritz Elektrisches widerstandsheizelement
EP0019376A1 (fr) * 1979-04-28 1980-11-26 Murata Manufacturing Co., Ltd. Appareil de chauffage employant un thermistor
CH652551A5 (en) * 1980-10-04 1985-11-15 Loh Kg Rittal Werk Switching cabinet heating apparatus

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0582124A1 (fr) * 1992-08-05 1994-02-09 PAUL RITZAU PARI-WERK GmbH Dispositif d'atomiseur avec un élément de chauffage
FR2722937A1 (fr) * 1994-05-06 1996-01-26 Michel Jean Francois Dispositif de chauffage permettant d'economiser de l'energie
EP0895440A2 (fr) * 1997-08-01 1999-02-03 Body Heat Ltd Elément de chaufage électrique
EP0895440A3 (fr) * 1997-08-01 1999-05-19 Body Heat Ltd Elément de chaufage électrique
AU735612B2 (en) * 1997-08-01 2001-07-12 A.T.C.T.-Advanced Thermal Chips Technologies Ltd. Electrical PTC heating device
EP1061776A1 (fr) 1999-06-15 2000-12-20 David & Baader DBK Spezialfabrik elektrischer Apparate und Heizwiderstände GmbH Dispositif de chauffage destiné au réchauffement de l'air
US6472645B1 (en) 1999-06-15 2002-10-29 David & Baader Spezialfabrik Elekrischer Apparate Und Heizwiderstande Gmbh Air heating device
DE10031541B4 (de) * 1999-07-06 2007-04-12 Fritz Eichenauer Gmbh & Co. Kg Vorrichtung zum Vorheizen von Dieselkraftstoff
FR2806967A1 (fr) * 2000-03-30 2001-10-05 Eichenauer Gmbh & Co Kg F Dispositif de chauffage de l'habitacle de vehicules automobiles
EP2636981A1 (fr) 2012-03-09 2013-09-11 DBK David + Baader GmbH Dispositif de chauffage, élément de lamelle pour dispositif de chauffage et procédé de fabrication d'un élément de lamelle
DE102012106157A1 (de) 2012-07-09 2014-01-09 Dbk David + Baader Gmbh Lamellenelement und Verfahren zur Herstellung des Lamellenelements

Also Published As

Publication number Publication date
DE59007782D1 (de) 1995-01-12
US4990748A (en) 1991-02-05
JP2718764B2 (ja) 1998-02-25
EP0379873B1 (fr) 1994-11-30
JPH02207480A (ja) 1990-08-17
EP0379873A3 (en) 1990-10-03
DE3902206A1 (de) 1990-08-02

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