EP2125404A1 - Luftstromerwärmungsvorrichtung mit heizvlies - Google Patents
Luftstromerwärmungsvorrichtung mit heizvliesInfo
- Publication number
- EP2125404A1 EP2125404A1 EP08701171A EP08701171A EP2125404A1 EP 2125404 A1 EP2125404 A1 EP 2125404A1 EP 08701171 A EP08701171 A EP 08701171A EP 08701171 A EP08701171 A EP 08701171A EP 2125404 A1 EP2125404 A1 EP 2125404A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- electrically conductive
- air flow
- heating device
- heating
- air
- 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
Links
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
- 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
-
- 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
- F24H3/04—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
- F24H3/0435—Structures comprising heat spreading elements in the form of fins
-
- 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
-
- 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
- H05B3/20—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater
- H05B3/34—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater flexible, e.g. heating nets or webs
- H05B3/342—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater flexible, e.g. heating nets or webs heaters used in textiles
- H05B3/347—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater flexible, e.g. heating nets or webs heaters used in textiles woven fabrics
-
- 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
- H05B2203/00—Aspects relating to Ohmic resistive heating covered by group H05B3/00
- H05B2203/017—Manufacturing methods or apparatus for heaters
-
- 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
- H05B2203/022—Heaters specially adapted for heating gaseous material
- H05B2203/024—Heaters using beehive flow through structures
Definitions
- the invention relates to an air flow heating device for a heating or air conditioning systems of a vehicle.
- Electric heating elements are increasingly used in vehicle heating and air conditioning systems.
- One reason for this is the fast response time of electrical heating elements as compared to the long heating times, e.g. provides a powered by the cooling water circuit of an internal combustion engine heating element.
- Another reason is that some modern internal combustion engines only produce very little waste heat and, finally, electric heating elements also enable a differentiated temperature control of the driver, front passenger and rear seats.
- ceramic resistors have been used as electrical heating elements, for example. Frequently, the ceramic resistors are connected to metallic materials which increase the active surface area of the heating element and thus increase its effectiveness.
- the heating elements are exposed during operation to an air flow, e.g. within a ventilation duct of a heating or air conditioning system.
- Such a heating element is e.g. from the European patent application EP 1 510 381 A1 of the Applicant known.
- the heating element forms a section-wise wall of an air duct, whereby the air flowing in the air duct is heated over the length of the heating element.
- the ceramic resistors used are expensive and have a high weight. Furthermore, when using ceramic resistors care must be taken to ensure that they are not placed in the vicinity of temperature-sensitive materials such as the commonly used plastic air ducts. If necessary, appropriate provisions for thermal insulation against such heat-sensitive materials of the heating element must be taken.
- the present invention offers an alternative to the previously used Keramikflowerierin or comparable heating elements.
- the present invention relates to an air flow heating device, in particular for a heating, ventilation and / or air conditioning system of a vehicle, wherein the air flow heating device comprises a heating element which is arranged in an air flow region and comprises an electrically conductive fleece.
- an electrically conductive fleece may for example comprise carbon fibers, which serve as conductor tracks. If the carbon fibers flow through an electric current, electrical energy is converted into heat.
- the electrically conductive nonwoven fabric can be made to have a low weight and is very flat. Through the use of carbon fibers and the low weight can be achieved with the electrically conductive nonwoven faster heating and cooling than with metal heating or ceramic heating elements.
- the electrically conductive fleece is flat, it can be arranged as a heating element in the interior of an air guide element without excessively influencing the flow behavior of the air flowing through the air guide element. Due to the low weight of the electrically conductive non-woven speaks nothing against lining longer wall sections of an air guide element with the electrically conductive nonwoven or inject directly into the wall to increase the active surface for heat transfer between the heating element and air. This also contributes to the variability of the electrically conductive nonwoven with respect to its electrical properties. For example, the sheet resistance may typically be from 1 to 1 k ⁇ / mm 2 .
- the electrically conductive fleece can be designed for electrical voltages of 4 to 400 V and electrical powers of up to 0.8 W / cm 2 .
- the fiber-reinforcing effect of C-fibers ensures that the electrically conductive fleece does not dissolve or decompose even when exposed to air flow.
- an electrically conductive nonwoven is insensitive, as provided by the nonwoven structure, a plurality of small interconnects and thereby the electrical conductivity is ensured.
- Electrically conductive nonwovens can currently reach a maximum temperature of about 180 ° C.
- the flammability depends on the proportion of the base material used in addition to the carbon fibers, which may be a thermoplastic, for example. By varying the base material As a result, flammability can also be adjusted.
- the thickness of the fleece is about 30 ⁇ m.
- the electrically conductive fleece may comprise a material having a negative temperature coefficient.
- the electrically conductive fleece may be arranged in a frame.
- a frame By a frame, the shape of the electrically conductive nonwoven fabric is facilitated.
- the frame may be attached to attach the mat to e.g. an air guide element can be used by means of known fastening techniques, such as screwing, gluing or latching.
- the nonwoven may also have a shape as they have the currently used heat exchanger fins.
- the electrically conductive nonwoven fabric may be disposed on ribs that extend longitudinally to a flow direction of an airflow passing through the airflow heater.
- the air flow heating device of claim 4 may further comprise an electrically insulating material disposed between the fins and the electrically conductive nonwoven fabric.
- the ribs themselves can consist of an electrically conductive material, without impairing the functionality of the electrically conductive nonwoven fabric.
- the air flow heating device may further comprise a wall configured to guide an air flow passing through the air flow heating device, wherein the electrically conductive nonwoven is disposed or injected on the wall. Such a configuration reduces the flow cross-section only slightly and thus leads only to low flow resistance. Since a longer wall section can also be lined with the electrically conductive fleece, a sufficiently large area for the heat exchange between heating element and air flow can also be provided here.
- Such an arrangement may be used, for example, in the vicinity of exit nozzles, but is not limited thereto.
- turbulence caused by parts projecting into the airflow can lead to disturbing noises in the interior of the vehicle.
- the electrically conductive fleece can be arranged in meandering fashion. In this way, the active area of the web can be increased. In addition, the fleece in this arrangement also has its own stability.
- the electrically conductive fleece may be arranged in bellows. Here, too, the active surface exposed to an air flow increases.
- the electrically conductive nonwoven may be arranged honeycomb. Such a design has an increased active surface area and is stable.
- the invention further relates to an air flow heating device, in particular for a heating, ventilation and / or air conditioning system of a vehicle, comprising a heating element, which is arranged in an air flow region.
- the heating element comprises a planar, electrically conductive material that produces heat when it is traversed by an electric current.
- the possible embodiments which have been described for an electrically 'conductive nonwoven can also be reacted with the surface, electrically conductive material.
- the sheet-like, electrically conductive material may be tissue-like, fibrous-like, fibrous or the like. It is also conceivable to apply the planar, electrically conductive material as a coating of a carrier material.
- the planar, electrically conductive material may be designed in the shape of a rib, a bellows, a meander or a honeycomb. These embodiments increase the active area and increase the stability of the material. Electrical connections may be arranged along edges of the planar, electrically conductive material. For example, one of the two terminals, which are at least necessary for the electrical power supply, may be arranged along a first edge and the second terminal may be arranged along an opposing edge of the planar, electrically conductive material.
- the invention also relates to an auxiliary heater for a heating, ventilation and / or air conditioning system of a vehicle, comprising an air flow heating device, as just described, and which is arranged adjacent to an air outlet opening of the heating or air conditioning.
- an air flow heating device as just described, and which is arranged adjacent to an air outlet opening of the heating or air conditioning.
- Such additional heater makes it possible to temper the exiting at the corresponding air outlet opening air flow regardless of the air streams that emerge from other air outlet openings. For the driver, front passenger and possibly also other passengers, different temperature zones can thus be provided within a vehicle.
- the electrically conductive fleece which operates as a heating element in the additional heater, requires only one electrical connection for supplying energy.
- the invention also relates to a heating, ventilating and / or air conditioning system for a vehicle comprising an air flow heating device as described above.
- Figure 1 shows a heating element of a first embodiment of the present invention.
- Figure 2 shows a heating element of a second embodiment of the present invention.
- Figure 3 shows a heating element of a third embodiment of the present invention.
- FIG. 4 shows a heating element composed of a plurality of heating fleeces.
- Figure 5a shows a heating element of a further embodiment of the present invention.
- FIG. 5b shows a heating element from a further embodiment of the present invention.
- Figure 5c shows an electrically conductive fleece or material of a heating element of a further embodiment of the present invention.
- Figure 5d shows an electrically conductive fleece or material of a heating element of a further embodiment of the present invention.
- Figure 5e shows a section of an electrically conductive fleece or material of a further embodiment of the present invention.
- FIG. 6 shows a cross section through a combination of heat exchanger ribs and electrically conductive fleece.
- FIG. 7 shows a perspective view of an air-flow heating device according to the present invention.
- FIG. 8 shows a front view of the air flow heating device of FIG. 7.
- FIG. 9 shows another embodiment of an air-flow heating device according to the present invention.
- FIG. 10 shows still another embodiment of an air-flow heating device according to the present invention.
- Reference to the electrically conductive nonwoven always includes reference to a sheet, electrically conductive material.
- FIG. 1 shows a heating element 10 of FIG. 1 with a meandering, electrically conductive fleece 11.
- the electrically conductive fleece 11 is connected to an electrical voltage source via the contacts or connections 12 and 13.
- FIGS. 2 and 3 show two further embodiments of heating elements 20 and 30, respectively, which differ from the heating element 10 of FIG. 1 with respect to their shape.
- the electrically conductive fleece 11 is arranged in a bellows shape.
- the electrically conductive fleece 11 is arranged in the form of a dovetail pattern. These shapes can be achieved for example by folding or by deep drawing of the electrically conductive nonwoven. If necessary, a fixation of the mold can be achieved by a simultaneous or subsequent heating of the nonwoven by making the thermoplastic base material moldable by the heat.
- the electrically conductive fleece can be present in long strips of 10mm * 1660mm. This results in a total area of 166 cm. If the heating power per unit area is assumed to be 1 watt / cm, the result is a heat output of approximately 170 W per strip of electrically conductive fleece. Due to the shapes in Figures 1 to 3, the length of 1660mm can be reduced to dimensions that are suitable for automotive heating and air conditioning systems, without significantly reducing the active surface. The main flow direction of the air flow is usually perpendicular to the plane in Figures 1 to 3.
- FIG. 5a shows a heating element 50a, in which the electrically conductive fleece is attached to heat exchanger fins 51. The heat exchanger fins 51 are held by a carrier 52.
- the large area connections 12 and 13 provide a uniform distribution of current in the electrically conductive web to avoid local concentrations of current flow through the web.
- FIG. 5b shows a heating element 50b, which is similar to the heating element 50a, but the arrangement of the electrical connections is configured differently.
- the carrier 52 is electrically insulating in FIG. 5b.
- a first contact band 53 is connected to the electrical terminal 13.
- a second contact band 54 is connected to the electrical connection 12.
- the contact bands 53, 54 have in this example been attached to the longitudinal edges of the mat before the mat was placed in the illustrated bellows-like shape.
- the contact strips have a low electrical resistance compared to the electrically conductive nonwoven. As a result, there are all points of each one of the contact strips 53, 54 at approximately the same electrical voltage.
- the current flow in the fleece takes place along the arrow marked I. It is achieved a uniform current distribution in the web.
- the attachment of the contact strips on the nonwoven fabric can be done for example by pressing, sewing, or fusing.
- FIG. 5c largely corresponds to FIG. 5d, but only the electrically conductive fleece 51c is shown. Instead of the bellows-shaped form from FIG. 5b, the fleece 51c has a meander-shaped form in FIG. 5c. Again, contact bands 53, 54 are present.
- FIG. 5 d illustrates a further embodiment in which the electrically conductive fleece 5 Id is arranged honeycomb-shaped.
- Such a honeycomb-shaped structure can be achieved for example by sewing, gluing or welding.
- Figure 5e also shows a honeycomb structure of the electrically conductive nonwoven, wherein here for the power supply, an arrangement has been selected which is similar to those of Figures 5b and 5c.
- the embodiments shown in FIGS. 5a to 5e are given by way of example only, like all figures and the associated descriptions.
- the arrangement of the electrical contacts as well as the shape of the electrical nonwoven may vary.
- Figure 6 shows a cross section through the heat exchanger fins 51.
- the basic shape is achieved by a support member 61, which may correspond to conventional rib members.
- a layer of insulating material 62 is applied or applied to a surface of the carrier part.
- a further layer 63 is arranged, which consists of electrically conductive fleece.
- the layer of insulating material or short insulating layer 62 is not necessary if the support member 61 itself consists of an electrically insulating material.
- FIG. 7 shows a section of an air guiding element 73 which is provided with an air flow heating device.
- the air flow heater comprises an electrically conductive fleece 74 and two contacts 71, 72.
- the fleece extends perpendicular to the air flow direction, so that the fleece is flowed through by the air flow.
- the contacts 71, 72 are also used to attach the fleece by the fleece between the contacts, for example, clamped.
- the current flow in the electrically conductive fleece takes place essentially along the arrow designated I.
- FIG. 8 shows a front view of a section of an air guide element 73.
- an electrically conductive fleece 74 is attached to the inside of the air guide element 73, which is supplied with electrical current by the two contacts 71, 72.
- Each of the two contacts 71, 72 is cranked up or down or rounded in order to fill the inner cross section of the air guide element as well as possible and to avoid leaks between the fleece and the inner wall.
- FIG. 9 shows a further variant of an air flow heating device in an air guide element.
- the variant of FIG. 9 differs from that of FIG. 8 in that, instead of the contact plates 81, 82, only contact strips 91, 92 are now provided.
- the electrically conductive fleece heats up almost everywhere on the inner surface of the air guide element 73 evenly, whereby a uniform heating of the air flow can be achieved.
- FIG. 10 shows a further variant of an air flow heating device in an air guidance element.
- the contact strips 101, 102 are mounted on the same wall of the air guide element, whereby the electrical connection is simplified.
- the current flow is in accordance with the arrows shown and labeled I, i. counterclockwise.
- the electrically conductive fleece is interrupted at a gap 103 in order to prevent a direct flow of current in a clockwise direction from the contact strip 101 to the contact strip 102.
- a spacer may be inserted into the gap 103.
- the airflow heaters of Figs. 7 and 8 achieve approximately 75W of heating power with 75cm 2 of active area and the variants of Figs. 9 and 10 have an active area of approximately 180cm 2 , giving approximately 180W of heating power. This difference is mainly caused by the additional heating power of the wall sections shown vertically in the figures.
Landscapes
- 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)
- Textile Engineering (AREA)
- Air-Conditioning For Vehicles (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SI200831108T SI2125404T1 (sl) | 2007-01-24 | 2008-01-22 | Naprava za segrevanje zračnega toka s segrevanjem netkanega tekstila |
PL08701171T PL2125404T3 (pl) | 2007-01-24 | 2008-01-22 | Urządzenie do ogrzewania strumienia powietrza zawierające włókninę grzejną |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102007003549A DE102007003549A1 (de) | 2007-01-24 | 2007-01-24 | Luftstromerwärmungsvorrichtung mit Heizvlies |
PCT/EP2008/000456 WO2008089951A1 (de) | 2007-01-24 | 2008-01-22 | Luftstromerwärmungsvorrichtung mit heizvlies |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2125404A1 true EP2125404A1 (de) | 2009-12-02 |
EP2125404B1 EP2125404B1 (de) | 2013-10-09 |
Family
ID=39266344
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP08701171.4A Not-in-force EP2125404B1 (de) | 2007-01-24 | 2008-01-22 | Luftstromerwärmungsvorrichtung mit heizvlies |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP2125404B1 (de) |
DE (1) | DE102007003549A1 (de) |
ES (1) | ES2439491T3 (de) |
PL (1) | PL2125404T3 (de) |
SI (1) | SI2125404T1 (de) |
WO (1) | WO2008089951A1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11259368B2 (en) | 2016-07-22 | 2022-02-22 | Dupont Electronics, Inc. | Thin-film heating device |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8395096B2 (en) * | 2009-02-05 | 2013-03-12 | Sandvik Thermal Process, Inc. | Precision strip heating element |
DE102010033309A1 (de) * | 2010-08-04 | 2012-02-09 | Ingo Schehr | Wärmetauscher-Lamellenmodul, Wärmetauscher und elektrisches Heizmodul |
CN102833888A (zh) * | 2011-06-13 | 2012-12-19 | 上海华族实业有限公司 | 适用于压紧固定在ptc电加热器管散热条 |
DE102016210159A1 (de) | 2016-06-08 | 2017-12-14 | Mahle International Gmbh | Rippenelement für einen Wärmeübertrager |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3627988A (en) * | 1969-04-01 | 1971-12-14 | Electrotex Dev Ltd | Electrical heating elements |
DE2026187A1 (de) * | 1970-05-29 | 1971-12-09 | Rocholl M | Direktheizender elektrischer Flachheizkörper mit Flächenheizelementen als Wärmeenergiequelle |
DE2055927C3 (de) * | 1970-11-13 | 1978-04-20 | Schladitz-Whiskers Ag, Zug (Schweiz) | Poröser, elektrisch leitender Gegenstand, insbesondere elektrisches Heizelement |
BE794422A (fr) * | 1972-01-24 | 1973-07-23 | Rhone Poulenc Textile | Feutres electro-conducteurs de bonnes proprietes mecaniques |
DE2305105B2 (de) * | 1973-02-02 | 1978-05-03 | Sigri Elektrographit Gmbh, 8901 Meitingen | Poröses Heizelement |
DE2627555A1 (de) * | 1976-06-19 | 1977-12-22 | Eichenauer Fa Fritz | Elektrisches heizelement fuer gasfoermige medien |
FR2859349B1 (fr) | 2003-08-29 | 2006-12-01 | Valeo Climatisation | Element de chauffage electrique pour appareil de ventilation, de chauffage et/ou de climatisation d'habitacle |
DE102004045668A1 (de) * | 2003-10-31 | 2005-06-30 | Behr Gmbh & Co. Kg | Elektrisch beheizbare Kunststoffmatrix |
DE102005001385B3 (de) * | 2004-12-22 | 2006-08-24 | Schütz GmbH & Co. KGaA | Elektrisches Luftheizregister |
DE102005008596B3 (de) | 2005-02-23 | 2006-05-24 | Daimlerchrysler Ag | Heizvorrichtung zum Erwärmen eines Luftstroms insbesondere für ein Kraftfahrzeug |
DE202005008318U1 (de) * | 2005-02-23 | 2005-08-11 | Daimlerchrysler Ag | Heizvorrichtung zum Erwärmen eines Luftstroms, insbesondere für ein Kraftfahrzeug |
DE102006045771A1 (de) * | 2005-10-06 | 2007-04-12 | Behr Gmbh & Co. Kg | Heizungsanordnung, insbesondere für ein Kraftfahrzeug |
-
2007
- 2007-01-24 DE DE102007003549A patent/DE102007003549A1/de not_active Withdrawn
-
2008
- 2008-01-22 ES ES08701171.4T patent/ES2439491T3/es active Active
- 2008-01-22 PL PL08701171T patent/PL2125404T3/pl unknown
- 2008-01-22 SI SI200831108T patent/SI2125404T1/sl unknown
- 2008-01-22 WO PCT/EP2008/000456 patent/WO2008089951A1/de active Application Filing
- 2008-01-22 EP EP08701171.4A patent/EP2125404B1/de not_active Not-in-force
Non-Patent Citations (1)
Title |
---|
See references of WO2008089951A1 * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11259368B2 (en) | 2016-07-22 | 2022-02-22 | Dupont Electronics, Inc. | Thin-film heating device |
Also Published As
Publication number | Publication date |
---|---|
WO2008089951A1 (de) | 2008-07-31 |
SI2125404T1 (sl) | 2014-05-30 |
DE102007003549A1 (de) | 2008-07-31 |
ES2439491T3 (es) | 2014-01-23 |
PL2125404T3 (pl) | 2014-05-30 |
EP2125404B1 (de) | 2013-10-09 |
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