EP2395295A1 - Echangeur de chaleur - Google Patents

Echangeur de chaleur Download PDF

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Publication number
EP2395295A1
EP2395295A1 EP10290318A EP10290318A EP2395295A1 EP 2395295 A1 EP2395295 A1 EP 2395295A1 EP 10290318 A EP10290318 A EP 10290318A EP 10290318 A EP10290318 A EP 10290318A EP 2395295 A1 EP2395295 A1 EP 2395295A1
Authority
EP
European Patent Office
Prior art keywords
tube
heat exchanger
electrical resistance
conductors
resistance heating
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
EP10290318A
Other languages
German (de)
English (en)
Other versions
EP2395295B1 (fr
Inventor
Michael Dipl.-Ing. Kohl
Karl-Gerd Dipl.-Ing. Krumbach
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 GmbH and Co KG
Mahle Behr France Rouffach SAS
Original Assignee
Behr GmbH and Co KG
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
Application filed by Behr GmbH and Co KG, Behr France Rouffach SAS filed Critical Behr GmbH and Co KG
Priority to EP10290318A priority Critical patent/EP2395295B1/fr
Publication of EP2395295A1 publication Critical patent/EP2395295A1/fr
Application granted granted Critical
Publication of EP2395295B1 publication Critical patent/EP2395295B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H9/00—Details
    • F24H9/18—Arrangement or mounting of grates or heating means
    • F24H9/1854—Arrangement or mounting of grates or heating means for air heaters
    • F24H9/1863—Arrangement or mounting of electric heating means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H3/00—Air heaters
    • F24H3/02—Air heaters with forced circulation
    • F24H3/04—Air heaters with forced circulation the air being in direct contact with the heating medium, e.g. electric heating element
    • F24H3/0405—Air heaters with forced circulation the air being in direct contact with the heating medium, e.g. electric heating element using electric energy supply, e.g. the heating medium being a resistive element; Heating by direct contact, i.e. with resistive elements, electrodes and fins being bonded together without additional element in-between
    • F24H3/0429—For vehicles
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H3/00—Air heaters
    • F24H3/02—Air heaters with forced circulation
    • F24H3/06—Air heaters with forced circulation the air being kept separate from the heating medium, e.g. using forced circulation of air over radiators
    • F24H3/062—Air heaters with forced circulation the air being kept separate from the heating medium, e.g. using forced circulation of air over radiators using electric energy supply; the heating medium being the resistive element
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H3/00—Air heaters
    • F24H3/02—Air heaters with forced circulation
    • F24H3/06—Air heaters with forced circulation the air being kept separate from the heating medium, e.g. using forced circulation of air over radiators
    • F24H3/08—Air heaters with forced circulation the air being kept separate from the heating medium, e.g. using forced circulation of air over radiators by tubes
    • F24H3/081—Air heaters with forced circulation the air being kept separate from the heating medium, e.g. using forced circulation of air over radiators by tubes using electric energy supply
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H9/00—Details
    • F24H9/18—Arrangement or mounting of grates or heating means
    • F24H9/1854—Arrangement or mounting of grates or heating means for air heaters
    • F24H9/1863—Arrangement or mounting of electric heating means
    • F24H9/1872—PTC

Definitions

  • the invention relates to a heat exchanger according to the preamble of claim 1, an automotive air conditioning system according to the preamble of claim 10 and a method for producing a heat exchanger or an automotive air conditioning system according to the preamble of claim 11.
  • Automotive air conditioning systems are used to heat and / or cool the air to be supplied to the interior of a motor vehicle.
  • heat exchangers are used as electrical heating devices in order to heat the air which is supplied to the interior.
  • the electric heater includes PTC elements.
  • Positive Temperature Coefficient (PTC) elements are current-carrying materials that have electrical resistance and can conduct electricity better at lower temperatures than at higher temperatures. Their electrical resistance thus increases with increasing temperature.
  • the PTC element is generally made of ceramic and is a PTC thermistor. Thereby arises regardless of the boundary conditions - such. B. applied voltage, nominal resistance or air flow to the PTC element - a very uniform surface temperature at the PTC element. Overheating can be prevented as it z. B. could occur with a normal heat-emitting heating wire, since regardless of the boundary conditions always about the same resistance and thus a substantially identical electrical heating power is applied.
  • the heat exchanger comprises PTC elements, at least two electrical conductors by means of which electrical current is conducted through the PTC element and heat conducting elements, in particular fins or corrugated fins, by means of which the surface for heating the air is increased.
  • PTC elements at least two electrical conductors by means of which electrical current is conducted through the PTC element and heat conducting elements, in particular fins or corrugated fins, by means of which the surface for heating the air is increased.
  • motor vehicles are produced which have an exclusive electric drive or a hybrid drive. Automotive air conditioning systems for these motor vehicles generally no longer have a heat exchanger for heating the air through which cooling fluid flows. The entire heating power of the motor vehicle air conditioning system must therefore be applied by the electric heater or the PTC elements. For this reason, it is necessary, the PTC elements with high voltage, z. B. in the range of 50 to 600 volts instead of low voltage with 12 volts to operate.
  • High voltage in an automotive air conditioning system is a security problem because, for example, by a human touch of high voltage parts
  • the US 4,327,282 shows a heat exchanger with a PTC heating element.
  • Current is passed through the PTC heating element by means of contact plates and an insulating layer is arranged on the contact plates.
  • the components are held together by means of a U-shaped clip.
  • a heat generating element of a heater for air heating comprising at least one PTC element and voltage applied to opposite side surfaces of the PTC element electrical conductor tracks, wherein the two electrical conductors are surrounded on the outside by a non-electrically conductive insulating layer.
  • the object of the present invention is therefore to provide a heat exchanger and an automotive air conditioning system and a method for producing a heat exchanger and an automotive air conditioning system, in which a with electric current under high voltage, for. B. more than 50 V, operated heat exchanger without endangering the environment, especially people, can be operated.
  • the heat exchanger and the vehicle air conditioning should be inexpensive to manufacture reliable in operation.
  • a heat exchanger comprising at least one electrical resistance heating element, in particular at least one PTC element, at least two conductors electrically connected to the at least one electrical resistance heating element, in particular printed circuit boards, in order to conduct electrical current through the at least one electrical resistance heating element and thereby to heat the electrical resistance heating element, at least one heat conducting element for transmitting heat from the at least one electrical resistance heating element to a fluid to be heated, at least one electrical insulating element electrically isolating the at least two conductors, preferably from the at least one heat conducting element, the at least two conductors and / or the at least one electrical resistance heating element is arranged in at least one cavity bounded by at least one cavity wall and the at least one electrical resistance heating element is arranged at least one cavity Insulating element is at least one molded seal, wherein the at least one cavity wall is formed as at least one closed tube with at least two joints in cross section and preferably the at least one tube comprises at least two pipe parts.
  • the at least two joints by means of a biasing force, for. B. by clips, and / or a flanging and / or bonding and / or welding and / or soldering of at least two pipe parts.
  • the at least one tube is formed by two U-shaped shells in cross section or the at least one tube is formed by a respective tub and plate.
  • the at least one tube is designed as at least one flat tube with two broad side walls and two narrow side walls.
  • the at least one molded gasket is disposed between each of a wall of the at least one tube and a conductor, so that the at least two conductors are electrically insulated with respect to the at least one tube.
  • two, preferably substantially rectangular, shaped seals are arranged in the cavity, or the at least one molded seal is formed in the cavity as a tube, in particular a shrink tube
  • the at least one molded seal is elastic and / or the at least one molded seal consists at least partially of silicone or plastic or rubber and / or the at least one molded seal is with the at least one tube positively and / or positively and / or materially connected and / or the at least one molded seal is a film.
  • the at least one molded seal comprises heat-transmitting or thermally conductive particles, for.
  • alumina and / or silicon carbide and / or boron nitride and / or the at least one tube is from a first, z. B. upper, cover plate at a first end, in particular fluid-tight, closed and / or the at least one tube is of a second, z. B. lower, cover plate at a second end, in particular fluid-tight, closed.
  • the at least one electrical resistance heating element, the at least two conductors and the at least one molded seal connected to at least one heating composite which or which is disposed within the at least one tube or are and preferably form a plurality of tubes each having a heating composite and arranged between the tubes Corrugated ribs the heat exchanger, wherein, in particular by means of a clamping frame or a spring, on the walls of the at least one tube, in particular the broad side walls of the at least one flat tube, a compressive force is applied, so that due to the compressive force of the heating composite frictionally against the two walls, in particular Breitritiwanditch , fastened, in particular clamped, is.
  • An automotive air conditioning system according to the invention comprises at least one heat exchanger described in this patent application
  • Inventive method for producing a heat exchanger or a motor vehicle air conditioning system comprising the steps of: providing at least one electrical resistance heating element, in particular at least one PTC element, providing at least two electrical conductors, in particular printed circuit boards, for passing electrical current through the at least one electrical resistance heating element, providing at least one heat conducting element for transmitting heat from the at least one electrical resistance heating element to one heating fluid, providing at least one electrical insulating element as a molded gasket for electrically insulating the at least one heat conducting element from the at least two conductors, connecting the at least two conductors to the at least one electrical resistance heating element, thermally bonding the at least one heat conducting element to the at least one conductor, and / or with the at least one electrical resistance heating element, electrically insulating the at least two conductors, preferably of the at least one heat conducting element, by means of at least a molding gasket, by connecting the at least two conductors
  • the at least two pipe parts by means of clips, soldering, gluing or welding, in particular fluid-tight, connected.
  • the at least one heating composite is introduced into the at least one cavity before joining the at least two pipe parts.
  • a force is applied to at least one wall of the tube so that the at least one heating composite is frictionally secured between two walls of the at least one tube and direct contact between the two Walls and the molded gasket of Schuverbundes is produced.
  • the at least one molded seal is formed as a shrink tube and the shrink tube is shrunk onto the at least one heating composite by the shrink tube is heated.
  • the at least one heat-conducting element comprises at least one tube and / or the at least one heat-conducting element comprises corrugated ribs, which are arranged on the outside of the at least one tube, in particular by means of soldering or gluing, and / or the at least two conductors have no direct contact the at least one pipe.
  • the at least one heat-conducting element in particular the at least one tube and / or the corrugated ribs, at least partially, in particular completely, consists of metal, for example aluminum or steel, or plastic.
  • the at least one molded seal consists of an electrically insulating and thermally conductive material. Due to the geometric arrangement of the at least one molded seal within the heat exchanger, the at least two conductors and the at least one electrical resistance heating element are electrically insulated.
  • the molded seal is in a solid Physical state, ie not liquid or gaseous, even at high temperatures, eg. 70 ° C or 100 ° C.
  • the at least one molded seal is a film or insulating film, for.
  • a film or insulating film for.
  • a polyimide film (Kapton film), (elastic) ceramic-filled film or a (elastic) ceramic-filled silicone film for.
  • the heat exchanger has an IP protection class of 67, so that a sufficient waterproofness and dust tightness is present.
  • a closed pipe is a pipe whose walls are completely closed in a cross section.
  • the corrugated fins and the at least one tube are connected to each other by means of gluing and / or soldering and / or non-positively under prestress.
  • the first and / or second sealing plate has a groove, in which one end of the at least one tube is arranged.
  • the at least one tube in the groove with a seal, z. B. a, preferably elastic seal, or an adhesive, sealed.
  • the at least one molded seal when the volume of the at least one cavity is reduced, the at least one molded seal is elastically deformed due to contact between the at least one cavity wall and the at least one molded seal and by the elastic Forces of at least one mold seal after the elastic deformation, the at least one mold seal non-positively connected to at least one wall of the at least one tube, in particular the at least one molded seal is clamped between two walls.
  • the at least one heat-conducting element and / or the at least one molded seal has a thermal conductivity of at least 1 W / mK, in particular at least 15 W / mK.
  • the at least one molded seal has an electrical insulation of at least 1 kV / mm, in particular at least 25 kV / mm.
  • the at least one molded seal preferably in cross section, has a dielectric strength of at least 1 kV.
  • the at least one molded seal has a thermal conductivity of at least 1 W / mK, in particular at least 15 W / mK.
  • the at least one molded seal can thus insulate well electrically and, on the other hand, can sufficiently conduct the heat from the electrical resistance heating element to the heat-conducting element or the heat-conducting elements.
  • Fig. 1 shows an automotive air conditioning 24.
  • an air conditioning case 26 having a bottom wall 27 and an outlet portion 29, a fan 25, an air filter 30, a refrigerant evaporator 31 and a heat exchanger 1 is arranged as an electric heater.
  • the air conditioning housing 26 thus forms a channel 35 for passing the air.
  • Housing walls 28 of the air conditioning housing 26 have on the inside a surface 36 which define the channel 35.
  • the air for the interior of a motor vehicle is passed by means of the blower 25 through the air filter 30, the refrigerant evaporator 31 and the heat exchanger 1.
  • the automotive air conditioning system 24 is thus not provided with a heat exchanger through which coolant flows for heating the air conducted through the motor vehicle installation 24.
  • the air conducted by the motor vehicle air conditioning system 24 is electrically heated exclusively by means of the heat exchanger 1.
  • the motor vehicle air conditioning system 24 is preferably used in a motor vehicle with exclusively electric drive or with a hybrid drive (not shown).
  • An aluminum tube 18 designed as a flat tube 13 has two broad side walls 20 and two narrow side walls 21 (FIG. Fig. 8 and 14 ) on.
  • the width and narrow side walls 20, 21 thereby represent cavity walls 17, which enclose a cavity 19 within the tube 18.
  • the width and narrow side walls 20, 21 of the tube 18 are thus walls 16 of the tube 18.
  • the walls 16 and cavity walls 17 have in cross-section two joints 38 (FIG. Fig. 8 . 14 and 17 ) on.
  • the tube 18 is made in two parts from two tube parts 39.
  • two molded seals 23 are arranged as electrical insulating elements 22.
  • the two form seals 23 are made of elastic silicone.
  • On the two rectangular shaped seals 23 according to Fig. 7, 8 . 12, 13 . 14 and 16 are two conductors 4, namely a first circuit board 6 and a second circuit board 7, on.
  • Between the two circuit boards 6, 7 three PTC elements 3 designed as electrical resistance heating elements 2 are arranged.
  • the PTC elements 3 are connected to each other with the two printed circuit boards 6, 7 with adhesive.
  • an electrical contact plate 5 is formed in each case ( Fig. 2 and 3 ).
  • the cavity 19 enclosed by the cavity walls 17 of the flat tube 13 is a void 32 in the region of the narrow side walls 21, ie in the void 32 only air ( Fig. 8 ).
  • the shaped seal 23 can also be designed in one piece as a hose 34, in particular a shrinking hose ( Fig. 9 ).
  • the two printed circuit boards 6, 7 with the interposed three PTC elements 3 due to the electrical insulation of the molded gaskets 23 are electrically isolated.
  • the electrical contacting of the two circuit boards 6, 7 takes place by means of not shown electrical lines to the contact plates 5.
  • the two circuit boards 6, 7 with the three PTC elements 3 thereby constitute a heating unit 10.
  • a heating coil 9 or the heat exchanger 1 is present.
  • Several heater 9 as shown in FIG Fig. 2 . 10 and 11 can also be connected to a heat exchanger 1 with a larger number of heating registers 9 to each other.
  • the net height H N of the heat exchanger 1 as shown in FIG Fig. 3 is about 50 to 300 mm, preferably 100 to 200 mm and the mesh width B N is about 50 to 300 mm, preferably 100 to 200 mm.
  • the transverse division Q ie the distance between the flat tubes 13 as shown in FIG Fig. 4 , is in this case between 5 and 30 mm, preferably 9 to 18 mm and the overall depth T N as shown in FIG Fig. 8 is 6 to 50 mm, preferably 10 to 40 mm.
  • the overall depth T R is 10 to 50 mm, preferably 10 to 40 mm.
  • the thickness D E of the printed circuit boards 6, 7 is 0.2 to 1.5 mm, the thickness D 1 of the molded seals 23 0.1 to 1.5 mm and the width B R of the tube 18 is 2 to 10 mm.
  • the thickness D stone of the PTC elements 3 is in the range between 0.8 to 3 mm.
  • corrugated fins 12 are arranged as banksleiticide 11 ( Fig. 2 . 3 . 5 . 10 and 11 ).
  • the corrugated fins 12 serve to enlarge the surface of the heat exchanger 1, in order to better release the heat emitted by the PTC elements 3 to the air, which flows through the heat exchanger 1.
  • the flat tubes 13 also constitute heat-conducting elements 11.
  • the relevant manufacturing steps are in the Fig. 12 to 14 shown.
  • the corrugated fins 12 can be connected to the flat tube 13 or tube parts 39 either before or after the joining of the tube parts 39.
  • the corrugated fins 12 can be connected to the flat tubes 13, for example, by gluing, welding or soldering.
  • the flat tube 13 consists of two tube parts 39.
  • the two tube parts 39 are a first in cross-section substantially U-shaped half-shell 41 and a second substantially also U-shaped half-shell 42.
  • At these two half-shells 41, 42 are already the Corrugated ribs 12, for example, attached by gluing or soldering.
  • Between the two half shells 41 and 42 ( Fig. 12 ) forms before the merging and joining the two half-shells 41, 42 to the flat tube 13 of the cavity 19 from. In this cavity 19 of the heating composite 8 is introduced prior to the complete merging and joining of the two half-shells 41, 42.
  • the two half-shells 41, 42 are completely pushed together with the application of a compressive force 33 to the corrugated fins 12 or the broad-side walls 20 of the flat tube 13 still to be produced ( Fig. 14 ).
  • the first and second half-shell 41, 42 are narrow side walls 21 as joints 38, which are each provided on a half-shell 41, 42, joined together, for example by gluing. In this case, during the joining of the narrow side walls 21 on the heating register 9, the pressure force 33 is applied ( Fig.
  • pressing force 33 on the heat exchanger 1 is thus a purely optional design, because due to the bias within a heating register 9 can be dispensed with the pressure force 33 after connecting the two pipe parts 39 to the flat tube 13.
  • the pressing force 33 as shown in FIG 10 and 11 it may be necessary, provided that the corrugated fins 12 are fixed only under bias between the flat tubes 13 frictionally.
  • shown pressing force 33 can also be used in addition to a supplementary and additional tension of the heating system 8 in the flat tube 13.
  • Fig. 15 is a further embodiment of the flat tube 13 is shown.
  • the flat tube 13 is doing in an analogous manner to the illustration according to Fig. 12 to 14 connected to the heating system 8 to the heating coil 9.
  • the narrow side wall 21 of the half-shells 41, 42 correspondingly formed geometrically and is preferably at the support area between the first and second half-shell 41, 42 a not shown seal between the first and second half-shell 42 is arranged.
  • Fig. 16 and 17 is an additional embodiment of the flat tube 13 shown.
  • the flat tube 13 consists of a manufactured by deep drawing Tub 43 and a plate 44 each as pipe parts 39. At the tub 43 flanged lugs 46 are present. To produce the flat tube 13, the plate 44 is placed on the tub 43 and then the flanged tabs 46 are bent ( Fig. 17 ), so that the flanged tabs 46 attach the plate 44 to the tub 43.
  • a positioning frame 45 serves to position the heating composite 8 within the cavity 19 enclosed by the flat tube 13. The production takes place analogously to the exemplary embodiment according to FIGS Fig. 12 to 14 , In Fig. 16 is shown by the heating system 8, only the molded seal 23.
  • the molded seal 23 is a substantially rectangular shaped seal 23, which is placed on each of the first and second printed circuit board 6, 7 and the two printed circuit boards 6, 7 electrically insulated from the flat tube 13 from the tub 43 and the plate 44.
  • the positioning frame 45 consists of an electrically insulating material such as the molded seal 23, for example made of plastic.
  • the heat resistance of the plastic of the positioning frame 45 and the molded seal 23 is about 200 ° C.
  • an upper first cover plate 14 is applied to the upper ends of the flat tubes 13 and an optional second lower cover plate 15 on the lower, second ends of the flat tubes applied ( Fig. 5, 6 and 18 ).
  • the first and second cover plate 14, 15 in this case has a plurality of substantially rectangular grooves into which the ends of the flat tubes 13 are inserted. In the grooves, a cutout 47 is present at the lower end of the grooves. In the cutout 47, for example, an adhesive is introduced as a seal 48.
  • the ends of the flat tubes 13 are glued to this adhesive and thereby a liquid and dust-tight connection and sealing between the flat tubes 13 and the first and second cover plate 14, 15 produced.
  • a seal 48 may be used in addition to adhesive, for example, silicone.
  • the first and second cover plate 14, 15 consists of metal or plastic.
  • An upper side of the first upper cover plate 14 is connected dust-tight and liquid-tight with the air conditioning housing 26, so that no dust and no liquid can penetrate into the cavity 19 at the upper ends of the flat tubes 13. Notwithstanding this, on the top of the first upper cover plate 14 also dust and liquid-tight an electronic housing can be attached (not shown).
  • the arranged within the channel 35 of the motor vehicle air conditioner 24 heat exchanger 1 is thus sealed dust and liquid-tight. Dust or liquid within the channel 35 can thus not penetrate into the cavity 19 within the flat tubes 13.
  • the heating assembly 8 is arranged dust and liquid-tight within the flat tubes 13, so that in the air duct 35 existing dust particles or liquid can cause no damage to the heat exchanger 1.
  • the molded seal 23 is a commercially available insulation film and can thus be made available inexpensively in the production.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Air-Conditioning For Vehicles (AREA)
EP10290318A 2010-06-11 2010-06-11 Echangeur de chaleur Active EP2395295B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP10290318A EP2395295B1 (fr) 2010-06-11 2010-06-11 Echangeur de chaleur

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP10290318A EP2395295B1 (fr) 2010-06-11 2010-06-11 Echangeur de chaleur

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EP2395295A1 true EP2395295A1 (fr) 2011-12-14
EP2395295B1 EP2395295B1 (fr) 2013-03-06

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Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014009013A2 (fr) 2012-07-11 2014-01-16 Eberspächer Catem Gmbh & Co. Kg Élément générateur de chaleur
EP3064856A1 (fr) * 2015-03-02 2016-09-07 Mahle International GmbH Dispositif de chauffage
WO2017081225A1 (fr) 2015-11-13 2017-05-18 Dbk David + Baader Gmbh Unité de chauffage et sèche-linge
EP3310125A1 (fr) * 2016-10-11 2018-04-18 DBK David + Baader GmbH Aérotherme haute tension incluant des éléments à lamelles et procédé de montage de ses éléments chauffants
EP3328157A4 (fr) * 2015-07-22 2018-08-01 Japan Climate Systems Corporation Dispositif de chauffage électrique
EP3401617A1 (fr) 2017-05-12 2018-11-14 Mahle International GmbH Dispositif de chauffage électrique
DE102017208086A1 (de) * 2017-05-12 2018-11-15 Mahle International Gmbh Elektrische Heizeinrichtung
FR3081280A1 (fr) * 2018-05-21 2019-11-22 Valeo Systemes Thermiques Module de chauffage pour dispositif de chauffage pour vehicule automobile
WO2020002797A1 (fr) * 2018-06-28 2020-01-02 Valeo Systemes Thermiques Bloc de chauffage electrique
FR3083301A1 (fr) * 2018-06-28 2020-01-03 Valeo Systemes Thermiques Bloc de chauffage assemble par brasage
DE102018217030A1 (de) * 2018-10-04 2020-04-09 Mahle International Gmbh Elektrische Heizeinrichtung
DE102021201753A1 (de) 2021-02-24 2022-08-25 Mahle International Gmbh Fahrzeug mit elektrischer Heizeinrichtung

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1583771A (en) * 1976-03-18 1981-02-04 Fast Heat Element Mfg Co Electric heaters having resistance wire embedded in ceramic
US4327282A (en) 1978-10-21 1982-04-27 Firma Fritz Eichenauer Electrical resistance heating element
EP0240447A2 (fr) * 1986-04-04 1987-10-07 Emerson Electric Co. Protecteurs thermiques pour élément PTC
EP0333906A1 (fr) * 1988-03-25 1989-09-27 David & Baader DBK Spezialfabrik elektrischer Apparate und Heizwiderstände GmbH Résistance chauffante à coefficient de température positif
EP1768458A1 (fr) 2005-09-23 2007-03-28 Catem GmbH & Co.KG Elément chauffant d'un dispositif de chauffage

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Publication number Priority date Publication date Assignee Title
JP2007118779A (ja) * 2005-10-28 2007-05-17 Calsonic Kansei Corp ヒータ構造
JP2007298241A (ja) * 2006-05-01 2007-11-15 Calsonic Kansei Corp 電気ヒータ装置

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1583771A (en) * 1976-03-18 1981-02-04 Fast Heat Element Mfg Co Electric heaters having resistance wire embedded in ceramic
US4327282A (en) 1978-10-21 1982-04-27 Firma Fritz Eichenauer Electrical resistance heating element
EP0240447A2 (fr) * 1986-04-04 1987-10-07 Emerson Electric Co. Protecteurs thermiques pour élément PTC
EP0333906A1 (fr) * 1988-03-25 1989-09-27 David & Baader DBK Spezialfabrik elektrischer Apparate und Heizwiderstände GmbH Résistance chauffante à coefficient de température positif
EP1768458A1 (fr) 2005-09-23 2007-03-28 Catem GmbH & Co.KG Elément chauffant d'un dispositif de chauffage

Cited By (17)

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DE102016110023A1 (de) 2015-11-13 2017-05-18 Dbk David + Baader Gmbh Heizeinheit und Wäschetrockner
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WO2020002797A1 (fr) * 2018-06-28 2020-01-02 Valeo Systemes Thermiques Bloc de chauffage electrique
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DE102021201753A1 (de) 2021-02-24 2022-08-25 Mahle International Gmbh Fahrzeug mit elektrischer Heizeinrichtung

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