EP2519076B1 - Module de chauffage électrique pour le réchauffement de flux d'air - Google Patents

Module de chauffage électrique pour le réchauffement de flux d'air Download PDF

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Publication number
EP2519076B1
EP2519076B1 EP11192857.8A EP11192857A EP2519076B1 EP 2519076 B1 EP2519076 B1 EP 2519076B1 EP 11192857 A EP11192857 A EP 11192857A EP 2519076 B1 EP2519076 B1 EP 2519076B1
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EP
European Patent Office
Prior art keywords
heat
electric heating
heating module
core
core portion
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.)
Not-in-force
Application number
EP11192857.8A
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German (de)
English (en)
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EP2519076A3 (fr
EP2519076A2 (fr
Inventor
Gerhard Knieps
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MicroHellix GmbH
Original Assignee
MicroHellix 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.)
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Publication date
Application filed by MicroHellix GmbH filed Critical MicroHellix GmbH
Priority to PL11192857T priority Critical patent/PL2519076T3/pl
Priority to PCT/EP2012/057924 priority patent/WO2012150219A2/fr
Publication of EP2519076A2 publication Critical patent/EP2519076A2/fr
Publication of EP2519076A3 publication Critical patent/EP2519076A3/fr
Application granted granted Critical
Publication of EP2519076B1 publication Critical patent/EP2519076B1/fr
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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
    • H05B3/20—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater
    • H05B3/22—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater non-flexible
    • H05B3/24—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater non-flexible heating conductor being self-supporting
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/58—Cooling; Heating; Diminishing heat transfer
    • F04D29/582—Cooling; Heating; Diminishing heat transfer specially adapted for elastic fluid pumps
    • 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
    • F24H3/0411—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 for domestic or space-heating systems
    • 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
    • H05B3/10—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
    • 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 an electrical heating module for air flow heating according to the preamble of the appended claim 1.
  • a heating module of the present type comprises at least one planar PTC element with a first and a second contact surface, as well as an airflowable heat dissipation region, in which thermally conductive fins are arranged, which are in operative connection with the PTC element.
  • the PTC element is arranged between a first part and a second part of a heat- and current-conducting core and rests with its first contact surface on the first core part and with its second contact surface on the second core part.
  • the PTC element thus gives off heat to the two core parts and can be electrically contacted simultaneously via the two core parts.
  • the heat and current conducting core also carries the fins, which heat a stream of air flowing through the heat dissipation area.
  • PTC elements are semiconductor resistors made of ceramic whose ohmic resistance is temperature-dependent.
  • the resistance-temperature characteristic behaves non-linearly: The resistance of a PTC heating element initially drops slightly with increasing component temperature, then rises very steeply at a characteristic temperature (reference temperature).
  • the PTC resistance increases rapidly, limiting the electrical power consumption to a very low level.
  • the component temperature then approaches an upper limit, which depends on the heat absorption of the surroundings of the PTC heating element. Under normal environmental conditions, the component temperature of the PTC heating element can therefore not rise above a characteristic maximum temperature, even if the desired heat dissipation in case of failure is completely interrupted.
  • This and the self-regulating properties of a PTC heating element based on which the absorbed electrical power corresponds exactly to the output thermal power, predestined PTC heating elements for use in heating or air conditioning systems of vehicles or other applications of air flow heating in vehicles or residential areas. Because of safety reasons, no flammable temperatures may arise in the heating element in these applications even in case of failure, nevertheless a high heating capacity is required in normal operation.
  • EP 1 479 918 A1 is a complete fan module, consisting of a housing integrated in a radial fan and a heating module disclosed that is to serve for seat heating in a ventilated motor vehicle seat. Since a motor vehicle seat for safety reasons, even at failure of the fan on the surface of a maximum temperature that is tolerable for humans, must not exceed, heating modules with PTC heating elements are ideal, especially as they with the same security a much higher heating capacity than the mats conventionally used in seat heaters with electrical resistance wires whose power consumption must be very limited for safety reasons.
  • the previously known electric heating modules with PTC elements usually consist of several layers of surface next to each other arranged, with its narrow side in the air flow PTC heating elements, which are electrically contacted at their flat tops and their lower sides with contact plates.
  • the adjoining heat dissipation areas have meandering arranged metal fins, which are also with their narrow side in the air flow and thermally contact the Koritakt michsbleche the PTC heating elements at regular intervals for heat transfer on its broadside,
  • thermal adhesive or other bonding techniques can be used;
  • an electric heating module of the type mentioned is proposed with an annular, in particular circular heat dissipation area, in which the heat-conducting fins are arranged substantially radially. This simplifies the assembly, especially if it is to be automated, and increases the efficiency of the heat transfer to the guided through the slats or the heat dissipation area airflow.
  • blower module for motor vehicle seats is in the EP 1 464 533 A1 to find.
  • An example of a heating module which is provided in the manner of a hair dryer with a fan and resistance heating wires in the air stream is in the US 6,541,737 B1 described.
  • the heat-conducting laminations of the prior art according to the DE 10 2007 006 058 A1 are, as in the other above-mentioned prior art, made of bent and folded metal sheets. Although this can be done by machine, but the fitting of the slats in the core parts is quite complex and leads to a not very high intrinsic stability of the component formed from the laminated ring and core part of the overall module.
  • the present invention seeks to improve the ease of installation of an electric heating module of the present type by constructive modifications.
  • the present invention makes spring elements and assembly work with prestressed assemblies superfluous, because according to the invention a fastener is present, which passes through the first core part, the PTC element and the second core part and fixed to each other, in particular by means of mutually aligned holes in these components.
  • a fastener may consist of a screw-nut combination;
  • attachment such as a rivet connection, a connector with retaining rings or cotter pins, etc. in the context of the present invention can be used as a fastener.
  • a screw connection is particularly easy to assemble.
  • the fastening element In order to be able to compensate for possible thermal stresses and mechanical loads, it is preferable to provide the fastening element with a spring element which biases the first core part, the PTC element and the second core part elastically against each other.
  • This spring element can be integrated in the fastening element or be arranged as a spring washer, soft elastic coating and the like somewhere between the components involved.
  • the two core parts and the PTC element are stable and permanently fixed to one another with a defined preload and with a correspondingly good heat dissipation from the PTC element into the core parts, so that this assembly is particularly easy to assemble.
  • a housing into which the present electrical heating module is preferably installed together with a fan can be kept free from holding forces and counterforce resulting from spring elements which have been used in the prior art.
  • the electrical heating module according to the invention can therefore be easily inserted into a housing or clicked over a snap connection Be what the installation of a heating module with housing and fan, as it is installed, for example, in vehicle seats for heating and ventilation of the same, again significantly simplifies.
  • the fastening element is electrically conductive and serves as a power supply to either the first or the second core part.
  • it preferably sits in an electrically insulating sleeve, which extends at least over one of the two core parts and the PTC element away.
  • the PTC element can then be electrically contacted from only one side.
  • a first electrical lead is connected to the first core part, and a second electrical lead is connected to the fastening element, which is electrically insulated from the first core part.
  • the electrical contact is preferably further simplified in that the sleeve which surrounds the fastening element electrically insulating, protrudes outside the bores of the core parts and the PTC element in a disc which is arranged between two electrical contact elements, in particular cable ferrules, and these electrically from each other separates.
  • a first of these two electrical contact elements then sits between the cantilevered disc and the first core part, so that in this way the first core part is contacted, while the second electrical contact element sits between the disc and the securing or projecting part of the fastening element.
  • this projecting part may be a nut, a screw head, a rivet, a washer, a spacer, a split pin, or the like.
  • the heat-conducting fins are no longer made, as in the prior art, as bent and folded metal sheets, but made as an extruded profile, in particular of aluminum or aluminum alloys, which are inherently stable and particularly good heat conducting.
  • an extruded profile which consists in particular of aluminum or an aluminum alloy, but may also consist of other thermally conductive materials
  • a cast profile for example produced by die casting, injection molding or other casting method, and an extrusion profile can be used, wherein for the latter in particular thermally conductive plastics can be used.
  • a first extrusion, casting or extrusion profile sits on the first core part and a second profile on the second core part.
  • Such an extrusion, casting or extrusion profile has several advantages: This includes the ability to create by circulating pressing with the respective core part an optimal heat transfer between the core part and the heat dissipation area, Furthermore, it is possible and preferred, the heat-conducting fins of the To design extruded profiles so that their cross section in the flow direction decreases with increasing distance from the core, which increases the efficiency of the heat conduction within the slats and the efficiency of the heat transfer from the slats to the air flow flowing through.
  • the efficiency of the heat transfer from the lamellae to the air flow flowing through can advantageously also be increased by virtue of the fact that the heat-conducting lamellae have a substantially black surface.
  • the lamellae are made of aluminum or an aluminum alloy, this can expediently be carried out in the anodizing process, so that the heat-conducting lamellae have a black anodized surface.
  • the thermally conductive fins such that they form a stem from the core and this strain branches at least once into two or more branches as it is removed from the core.
  • the heat release region can be structured uniformly, create a particularly large surface area of the heat-conducting lamellae, at which the heat transport into the air flow occurs, and achieve particularly low air flow losses. This increases the heat transfer, improves the response time and efficiency of the heating module and reduces airflow noise. Furthermore, smaller fans can be used for the same effect.
  • the present invention thus makes possible overall axle mounting of an electrical heating module with a sandwich-like construction with a central fastening element which simultaneously electrically contacts the PTC element.
  • the heat dissipation region can here, as well as the PTC element and the core parts, viewed in the flow direction, circular, flattened or oval or polygonal, for example rectangular or trapezoidal.
  • extruded, cast or extruded profiles with heat-conducting lamellae are described, which are intended in particular for use in a heat-dissipating area of an electric heating module according to the invention, ie in the context of the present invention can be part of such an electric heating module.
  • Suitable materials for this are all castable and / or extrudable, heat-conducting materials in question, in particular aluminum and aluminum alloys, but also other metals such as copper and copper alloys, or else heat-conductive plastics and ceramic materials.
  • the heat-conducting lamellae of the profile have a substantially black, in particular black anodized surface. This improves the heat transfer in the passing air stream.
  • a first profile has thermally conductive fins, at least a subset of which is each shaped such that the fins form a stem extending substantially radially outward from the core, and this trunk at least once into two or more with increasing distance from the core Branches branched.
  • the branch increases the heat transfer surface from the fins to the air flow, which significantly improves the heat transfer into the air flow.
  • a second extrusion, casting or extrusion profile has at least a subset of thermally conductive fins shaped to form a stem extending substantially radially away from the core, to which a plurality of branches extending substantially perpendicularly to the main direction of extension of the trunk are formed. These branches are preferably formed progressively longer with increasing distance from the core, so that they penetrate the largest possible area of the heat dissipation area.
  • the advantages and effects of this embodiment correspond approximately to those of the profile described above with lamellae forming a trunk with branches.
  • a third profile has a heat spreader ring radially spaced around the core and provided with heat conductive fins extending radially inwardly to the core.
  • the heat distribution ring is also provided radially outwardly with heat-conducting fins.
  • the heat distribution ring may be closed, but this is not always necessary.
  • a particularly preferred variant of a profile consists of at least two modules that can be assembled, wherein a first module surrounds the core and is thermally conductively connected thereto, and a second module can be attached to the first module such that it surrounds it and with it is thermally conductively connected.
  • a third and fourth modules, etc. which can be applied radially outward to increase the heat dissipation area. This makes it possible to adapt the heat dissipation area to different fan diameters, which can be attached to the electric heating module and form with it a heating fan.
  • extruded, cast or extruded profiles are preferably formed in a circular projection, but this need not be.
  • profiles which, in their projection, are polygonal, for example rectangular, or oval or flattened. This is especially true for the profile with heat distribution ring.
  • the different variants of profiles described above can also be combined.
  • FIG. 1 schematically shown in section electric heating module has as the heart of a flat PTC element 1, which, surrounded by a sealing ring 2, sits between a first core part 3 and a second core part 4.
  • the sealing ring 2 ensures that the PTC element 1 is protected from external influences protected from the outside.
  • first heat-emitting block 5 which consists of an aluminum extruded profile, which surrounds the first core part 3 circularly, forms a plurality of substantially radially extending, heat-conducting fins. These will be explained later FIG. 3 described in more detail.
  • a second heat-emitting block 6 is seated on the second core part 4. The heat-dissipating blocks 5 and 6 cover a heat-dissipating area 7, through which an air stream 8 flows through air to be heated.
  • the flat PTC element 1 has on the upper side a first contact surface 9 and on its underside a second contact surface 10, wherein these two contact surfaces 9, 10 are used both for electrical contacting of the PTC element 1 and for heat dissipation.
  • the first core part 3, the PTC element 1 and the second core part 4 are held together by a fastening element 11 biased against each other.
  • this fastening element passes through the said three components 1, 3, 4, in the present embodiment by means of central bores; Accordingly, the PTC element 1 is present in the form of a perforated disk.
  • the fastening element 11 consists in the present embodiment of a cylinder screw 12 with a head 13 with square inner and a shank 14 which passes through the holes in the two core parts 3, 4 and the PTC element 1.
  • a hex nut 15 is screwed and secured by a toothed wheel 16.
  • a spring washer 17 between the head 13 of the cylinder screw 12 and the second core part 4 provides a permanent, defined biasing force, which is exerted by the fastener 11 on the core parts 3, 4 and of these on the PTC element 1.
  • the fastener 11 not only serves to apply forces to said components and to secure them to each other, but is also used for electrical contacting of the PTC element 1, the shank 14 of the cylinder screw 12 is surrounded by an insulating sleeve 18 having an electrical Insulation between the fastener 11 and the first core part 3 and the PTC element 1 ensures.
  • the fastening element 11 is electrically connected, on the one hand directly in the bore and in particular on the other indirectly via the spring ring 17th
  • the insulating sleeve 18 projects laterally beyond the first core part 3 and forms a perforated disc part 19. This creates an electrical insulation between the first core part 3 and the components electrically connected to the fastening element 11, such as the hexagon nut 15 and the toothed disc 16. Between the perforated disc part 19 of the insulating sleeve 18 and the toothed disc 16 is seated a first Jardinringinate 20, which can be electrically contacted via a first cable lug 21. A washer 22 between the sprocket 16 and the first Jardinringinate 20 ensures optimum pressure distribution and optimum electrical contact from the cable lug 21 via the first Jardinringinate 20, the toothed disc 16, the hex nut 15, the cylinder screw 12, and the spring washer 17 in the second core part 4th
  • a second Jardinringinate 23 is arranged with a second cable lug 24.
  • This second cable eyelet 23 is electrically isolated by means of the insulating sleeve 18 against the fastening element 11 and at the same time is in electrical contact with the first core part 3, since it rests on this. Accordingly, the second core part 3 can be electrically contacted via the second cable lug 24.
  • both cable lugs 21, 24 are arranged in the central region of the heating module and both are accessible from above, yet both contact surfaces 9, 10 of the horizontally inserted PTC element 1 can be supplied with electric current.
  • FIG. 1 illustrated embodiment has the advantage that a single, centrally arranged fastener 11 both the mechanical cohesion of the heating module and a very good heat dissipation from the PTC element 1 in the heat emitting blocks 5, 6 and beyond a robust and efficient electrical contacting of the PTC element. 1 at an easily accessible location of the heating module.
  • This fastener 11 is also easy to install and fix, so that the electric heating module is not only a whole lot easier to assemble than in the prior art, but also has a high efficiency in its operation.
  • FIG. 2 is, again in a schematic lateral section, the electric heating module off FIG. 1 represented, so that identical components are provided with identical reference numerals.
  • FIG. 2 shows a typical installation situation of the present electric heating module in a vehicle seat to ventilate and / or heat this. Due to the compact and stable design of the electric heating module, this can be easily clipped into a housing 25 by means of snapping detent elements 26, wherein a commercially available fan 27 can be placed in the housing 25 upstream of the heating module. The effective for the air flow 8 surface of the fan 27 corresponds substantially to the heat dissipation region 7 of the electric heating module, while the core 3, 4 of the heating module is covered in projection from the fan motor. The electrical connection for the heating module can be led out of the housing 25 together with the electrical connection of the fan motor.
  • FIG. 3 shows a perspective view of the electric heating module FIG. 1 , which is installed in a housing 25, but has not yet been combined with a fan.
  • the first heat-emitting block 5 visible here consists of a multiplicity of essentially radially extending lamellae, which, viewed in the direction of flow, are designed as wide "stems" toward the center of the module and extend radially outward taper, but branch radially outward, to increase the number of fins swept by the airflow in the radially outer area of the heat release area.
  • FIG. 3 finally clarifies the easy mounting accessibility of the electrical connections for the PTC element 1; the power supply via a two-core cable 28, the two wires are connected to the cable lugs 21, 24.
  • the further power line within the heating module is based on the FIG. 1 described in more detail.
  • FIG. 3 illustrated design of the heat-emitting block 5 ensures a uniform structuring of the heat-emitting region 7 and provides a large surface area for the exchange of heat with the air stream 8 and low air flow losses.
  • the heat-dissipating blocks 5, 6 are in this case pressed around the radius encircling the core parts 3, 4, resulting in an advantageously high thermal conductivity of the core parts 3, 4 in the heat-emitting blocks 5, 6 results.
  • FIG. 4 shows in a schematic plan view in the flow direction, a first embodiment of a usable profile within the scope of the invention, in this case an extruded profile, this first embodiment already in the in the FIGS. 1 to 3 shown used electric heating module.
  • the extruded profile consists of an internal, the core 3, 4 with PTC element contacting heat distribution ring 30, from the radially outwardly extending a plurality of lamellae in the form of stems 31, which stems 31 are after about half of their extension in each case three Branches 32 branch.
  • the fins are not exactly radial aligned, but take a curved course. Between the individual logs 31 of the blades, short intermediate blades 33 are arranged to utilize the spaces between the logs 31.
  • the described parts of the extruded profile shown are naturally integrally formed integrally formed.
  • FIG. 5 an embodiment of a second variant of an extruded profile is shown, again a schematic plan view in the flow direction.
  • This extruded profile in turn consists radially inwardly of a heat distribution ring 30 from which extends a plurality of fins radially away, each forming a stem 31.
  • a plurality of branches 34 are arranged, which extend approximately perpendicular to the main extension direction of the stems 31 and thus penetrate the projection surface of the heat dissipation region 7 regularly.
  • FIG. 6 shows a third variant of a profile, here again an extruded profile, again in a representation as in the FIGS. 4 and 5 ,
  • the variant shown here again has a heat distribution ring 30, but this is not arranged radially inwardly and provided for contacting the core parts 3, 4 and the PTC element 1, but here the heat distribution ring is radially spaced from the core parts 3, 4 and with a A plurality of inner fins 35 are provided, which extend from the heat distribution ring 30, starting radially inwardly to the core parts 3, 4 or any other heat source out.
  • the heat distribution ring 30 is also provided radially outwardly with outwardly extending outer fins 36, the number of which is about twice as large as the number of inner fins 35th
  • FIG. 7 Finally, again in a schematic plan view in the flow direction, a variant of an extruded profile, which consists of two modules 37, 38. Each of these two modules 37, 38 has a radially distributed inside heat distribution ring 30 and a plurality of radially outwardly extending blades 35, 36th

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Resistance Heating (AREA)
  • Direct Air Heating By Heater Or Combustion Gas (AREA)
  • Air-Conditioning For Vehicles (AREA)

Claims (11)

  1. Module de chauffage électrique destiné à réchauffer un courant d'air, comprenant
    - au moins un élément CTP plat (1) doté d'une première (9) et d'une deuxième surface de contact (10),
    - une zone d'émission de chaleur (7) pouvant être traversée par un courant d'air, dans laquelle sont disposées des lamelles thermoconductrices (5, 6) en liaison thermoconductrice avec l'élément CTP (1), et
    - un noyau thermo- et électroconducteur (3, 4) portant les lamelles (5, 6) et pouvant être divisé en une première (3) et une deuxième partie de noyau (4),
    - l'élément CTP (1) étant disposé entre la première (3) et la deuxième partie de noyau (4) et reposant par sa première surface de contact (9) sur la première partie de noyau (3) et par sa deuxième surface de contact (10) sur la deuxième partie de noyau (4),
    caractérisé en ce
    - qu'un élément de fixation (11) est prévu, qui passe à travers la première partie de noyau (3), l'élément CTP (1) et la deuxième partie de noyau (4) et les fixe les uns aux autres.
  2. Module de chauffage électrique selon la revendication 1,
    caractérisé en ce
    que l'élément de fixation (11) est électroconducteur et sert à l'alimentation en courant soit de la première (3), soit de la deuxième partie de noyau (4).
  3. Module de chauffage électrique selon l'une des revendications 1 ou 2,
    caractérisé en ce
    que l'élément de fixation (11) est pourvu d'un élément élastique qui précontraint la première partie de noyau (3), l'élément CTP (1) et la deuxième partie de noyau (4) élastiquement les uns contre les autres.
  4. Module de chauffage électrique selon les revendications 2 et 3,
    caractérisé en ce
    que l'élément de fixation (11) est logé dans un manchon (18) électriquement isolé qui s'étend au moins sur une des deux parties de noyau (3, 4) et l'élément CTP (1).
  5. Module de chauffage électrique selon la revendication 4,
    caractérisé en ce
    que le manchon (18) fait saillie en dehors des alésages dans un disque (19) qui est disposé entre deux éléments de contact électrique (20, 23) et sépare ceux-ci l'un de l'autre électriquement, un premier des deux éléments de contact électrique (20) étant logé entre le disque (19) et la première partie de noyau (3) et un deuxième des deux éléments de contact électrique (23) entre le disque (19) et une partie en saillie (15) de l'élément de fixation (11).
  6. Module de chauffage électrique selon au moins l'une des revendications 1 à 5,
    caractérisé en ce
    que les lamelles thermoconductrices (5, 6) sont réalisées en une pièce ou en plusieurs pièces sous la forme d'un profilé filé, moulé ou extrudé.
  7. Module de chauffage électrique selon la revendication 6,
    caractérisé en ce
    qu'un profilé filé, moulé ou extrudé recouvre la zone d'émission de chaleur (7) sous la forme d'un bloc émetteur de chaleur (5, 6) réalisé en une pièce.
  8. Module de chauffage électrique selon l'une des revendications 6 ou 7,
    caractérisé en ce
    qu'un premier profilé (5) est posé sur la première partie de noyau (3) et un deuxième profilé (6) sur la deuxième partie de noyau (4).
  9. Module de chauffage électrique selon au moins l'une des revendications 6 à 8,
    caractérisé en ce
    qu'au moins un sous-ensemble des lamelles thermoconductrices (5, 6) est formé de manière que les lamelles (5, 6) forment un tronc (31) à partir du noyau (3, 4) et que ce tronc se ramifie au moins une fois en deux ou plusieurs branches (32) à mesure que la distance par rapport au noyau (3, 4) augmente.
  10. Module de chauffage électrique selon au moins l'une des revendications 6 à 9,
    caractérisé en ce
    que les lamelles thermoconductrices (5, 6) présentent des sections d'écoulement qui diminuent à mesure que la distance par rapport au noyau (3, 4) augmente.
  11. Module de chauffage électrique selon au moins l'une des revendications 1 à 10,
    caractérisé en ce
    que les lamelles thermoconductrices (5, 6) présentent une surface sensiblement noire, en particulier anodisée en noir.
EP11192857.8A 2011-04-30 2011-12-09 Module de chauffage électrique pour le réchauffement de flux d'air Not-in-force EP2519076B1 (fr)

Priority Applications (2)

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PL11192857T PL2519076T3 (pl) 2011-04-30 2011-12-09 Elektryczny moduł grzejny do ogrzewania strumienia powietrza
PCT/EP2012/057924 WO2012150219A2 (fr) 2011-04-30 2012-04-30 Module de chauffage électrique destiné à réchauffer un courant d'air

Applications Claiming Priority (1)

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DE202011100054U DE202011100054U1 (de) 2011-04-30 2011-04-30 Elektrisches Heizmodul zur Luftstromwärmung

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EP2519076A2 EP2519076A2 (fr) 2012-10-31
EP2519076A3 EP2519076A3 (fr) 2013-02-06
EP2519076B1 true EP2519076B1 (fr) 2014-06-11

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EP (1) EP2519076B1 (fr)
DE (1) DE202011100054U1 (fr)
ES (1) ES2495424T3 (fr)
PL (1) PL2519076T3 (fr)
WO (1) WO2012150219A2 (fr)

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* Cited by examiner, † Cited by third party
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EP0350528B1 (fr) 1988-07-15 1992-04-01 David & Baader DBK Spezialfabrik elektrischer Apparate und Heizwiderstände GmbH Radiateur
CN2309681Y (zh) * 1997-09-18 1999-03-03 范长福 Ptc液体电加热器
JPH11186003A (ja) * 1997-12-25 1999-07-09 Yazaki Corp Ｐｔｃ素子の放熱構造
GB2352330B (en) * 1997-12-25 2001-04-11 Yazaki Corp Heat radiation system for electric circuitry
DE19851979C2 (de) 1998-11-11 2000-08-31 Daimler Chrysler Ag Temperaturfühler für einen klimatisierten Fahrzeugsitz
EP1464533B2 (fr) 2003-04-02 2012-02-29 Catem GmbH & Co.KG Siège de véhicule automobile et souffleur pour un tel siège de véhicule automobile
DE202005012394U1 (de) 2005-08-06 2005-12-08 Microhellix Systems Gmbh Elektrisches Heizmodul zur Luftstromerwärmung, insbesondere in Fahrzeugen
DE102007006058B4 (de) 2007-02-02 2009-11-26 Microhellix Systems Gmbh Elektrisches Heizmodul zur Luftstromerwärmung, insbesondere zur Heizung und Belüftung von Sitzen

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Publication number Publication date
WO2012150219A2 (fr) 2012-11-08
DE202011100054U1 (de) 2011-06-15
PL2519076T3 (pl) 2014-11-28
EP2519076A3 (fr) 2013-02-06
ES2495424T3 (es) 2014-09-17
WO2012150219A3 (fr) 2013-03-21
EP2519076A2 (fr) 2012-10-31

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