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EP1462733B1 - Elektrisches Heizgerät mit einem Heizkörper - Google Patents

Elektrisches Heizgerät mit einem Heizkörper Download PDF

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Publication number
EP1462733B1
EP1462733B1 EP04005884.4A EP04005884A EP1462733B1 EP 1462733 B1 EP1462733 B1 EP 1462733B1 EP 04005884 A EP04005884 A EP 04005884A EP 1462733 B1 EP1462733 B1 EP 1462733B1
Authority
EP
European Patent Office
Prior art keywords
heating body
bases
plates
rails
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.)
Expired - Lifetime
Application number
EP04005884.4A
Other languages
English (en)
French (fr)
Other versions
EP1462733A1 (de
Inventor
Pascal Guigou
Stéphane Pernet
Philippe Pierres
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.)
Valeo Systemes Thermiques SAS
Original Assignee
Valeo Systemes Thermiques 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 Valeo Systemes Thermiques SAS filed Critical Valeo Systemes Thermiques SAS
Publication of EP1462733A1 publication Critical patent/EP1462733A1/de
Application granted granted Critical
Publication of EP1462733B1 publication Critical patent/EP1462733B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • 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
    • 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
    • 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
    • F24H3/0441—Interfaces between the electrodes of a resistive heating element and the power supply 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
    • F24H3/0441—Interfaces between the electrodes of a resistive heating element and the power supply means
    • F24H3/0447—Forms of the electrode terminals, e.g. tongues or clips
    • 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
    • F24H3/0452—Frame constructions
    • F24H3/047—Multiple-piece frames assembled on their four or more edges
    • 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 electric heating devices, in particular for air heating installations in motor vehicles.
  • the heating of the air intended for heating the passenger compartment of a motor vehicle with a heat engine, as well as for defogging and deicing, is ensured by heat exchange between an air flow and a engine coolant circulating in an exchanger.
  • Such a device generally comprises a heating body comprising a plurality of parallel conductive plates between which are mounted heating resistive elements and radiant elements increasing the heat exchange surface with the air flow passing through the heating device.
  • the various elements of the heating body are generally assembled together by mechanical means.
  • such a bonded heating body must be connected to the plastic bases taking into account the dispersions and manufacturing tolerances of the one-piece body without penalizing the assembly time of such a heating device.
  • the purpose of the invention is to simplify and optimize the production of an electric heating device comprising a heating element, in particular to reduce manufacturing and assembly costs compared with devices of the prior art.
  • an electric heating device comprising a heating body comprising a plurality of conductive plates between which heating resistive elements are mounted and radiant elements increasing the heat exchange surface with a flow of air passing through the heating device.
  • heating the heating body being disposed between a front base and a rear base, the heating body further comprising at least one holding plate of the heating body having at its ends anchoring means cooperating with associated receiving means, by clipping , and integrated in the front and rear bases, in order to fix the heating body between these front and rear bases, characterized in that the front and rear bases have a shape of rectangular housings adapted to accommodate the ends of the heating body and having on their lateral sides of the rails protruding from the bases and cooperating with two holding plates (5a, 5b) arranged on the two outer lateral sides of the heating body (3).
  • At least a portion of said conductive plates protrude from the front base to form terminals for connection to a power supply circuit.
  • the receiving means may comprise flexible tabs arranged in the upper and lower portions of the front and rear bases.
  • the two holding plates of the heating body may comprise transverse walls having a U-shape at least on their two ends, each of the anchoring means is formed by cuts in said transverse walls, so that the flexible tongues fit together. in the cutouts of the outer conductive plates.
  • the receiving means may comprise flexible tabs arranged in said U-shaped rails.
  • the two holding plates of the heating body may have transverse walls having a U-shape at least on both ends.
  • the two outer conductive plates are U-shaped in all their lengths.
  • each of the anchoring means is formed by a recess in the plane of each of said holding plates having the U-shape on at least their two ends, and the tongues hoses are formed on the side walls of the U-shaped rails, so that said flexible tabs fit into the recesses of the holding plates.
  • each of the anchoring means is formed by cuts in the transverse walls of said U-shaped holding plates on at least their two ends, and the flexible tongues are formed in the U-branches of the rails, so that the flexible tabs are embedded in the cutouts of the holding plates.
  • each of the U-shaped rails has on its side wall a flexible blade ensuring accurate setting of the holding plates thus avoiding any problem related to the geometric dispersion of the heating body.
  • the anchoring means of the two holding plates comprise tabs intended to be folded on the associated receiving means integrated in the front and rear bases.
  • Each of the receiving means may comprise depressions in the upper and lower portions of the front and rear bases, so that said tabs of said holding plates bend in the respective recesses.
  • the rectangular housings of the front and rear bases have on their lateral sides U-shaped rails and each of the reception means comprises lugs formed on these rails, so that said lugs of said plates keep bending on the rails just outside the lugs.
  • the two holding plates can have a U-shape in all their lengths between the lugs and fit on the rails of the front and rear bases.
  • each of the U-shaped rails has on its side wall a flexible blade ensuring accurate setting of the holding plates thus avoiding any problem related to the geometric dispersion of the heating body.
  • all the elements of the heating body are fixed together by gluing, with the exception of the two holding plates.
  • all the elements of the heating body are fixed together by gluing, including the two support plates.
  • the conductive plates have folds at the ends of the heating body so that the connection terminals have a standard pitch.
  • the one or more holding plates can also form one or more conductive plates.
  • the front and rear bases can be made of plastic.
  • the figure 1 shows schematically an unclaimed heating device for example for a motor vehicle air conditioning installation.
  • the heating device 1 comprises a heating body 3 comprising a plurality of conductive plates 4 between which resistive heating elements 7 and radiant elements 9 are mounted.
  • the resistive elements 7 may be positive temperature coefficient (PTC) resistors which are usually in the form of blocks or stones. These elements, because of the strong increase in their electrical resistance from a temperature threshold (Curie point), give the heating device the ability to self-regulate as a function of temperature, which avoids any excessive heating. potentially dangerous.
  • PTC positive temperature coefficient
  • the radiant elements 9 are corrugated metal strips, for example made of steel or aluminum, which extend between the plates 4, along them, and make it possible to increase the heat exchange surface with a flow of air passing through the heating device 1 perpendicular to the plane of the heating body 3.
  • the figure 1 shows that the resistive elements 7 are arranged in rows, each of which has a plurality of resistive elements 7 spaced apart from each other along the heating body 3. One side of each resistive element 7 is in contact with a conductive plate 4, while the other side of each resistive element 7 is in contact with a radiating element 9. In turn, the radiant element 9 is disposed along another conductive plate 4.
  • the figure 1 illustrates four conductive plates 4, a holding plate 5 substantially in the middle of the heating body 3, two rows of resistive element 7, and four rows of radiant element 9.
  • these numbers can be any, and in particular we can consider that the heating body comprises two holding plates disposed on each of the two outer lateral sides of this body as will be described further with regard to the figure 3 .
  • resistive elements 7 for a row of resistive elements 7, one side of these resistive elements 7 may be in direct electrical contact with a conductive plate 4 while the other side of the resistive elements 7 may be in electrical contact with the adjacent conductive plate 4 through the radiant element 9 disposed between the two conductive plates. Therefore, the resistive elements 7 arranged in a row can be fed in parallel between two consecutive conductive plates 4.
  • the heating body may comprise any other configuration known in the prior art.
  • the resistive elements may be arranged in bars. Each bar comprises a plurality of resistive elements spaced from each other and fed in parallel between two conductive plates.
  • heating body 3 can be held together by gluing or by other types of assembly.
  • the heating body 3 is disposed between a front base 11 and a rear base 13. These bases may for example be in the form of rectangular housings adapted to receive the front and rear ends of the heating body 3.
  • front 11 and rear 13 bases are electrically insulating material, for example, plastic.
  • the holding plate 5 can form a conductive plate, but it can also be insulating.
  • At least a portion of the conductive plates 4 protrude from the front base 11 to form terminals 15 for connection to a power supply circuit not shown.
  • the holding plate 5 of the heating body 3 comprises at its ends anchoring means 17 cooperating with associated receiving means 19 integrated in the front 11 and rear 13 bases. This allows to fix the heating body 3 between these bases before 11 and rear 13.
  • the anchoring means 17 can cooperate with the associated receiving means 19 by clipping.
  • the ends of the holding plate 5 may be in the form of a harpoon thus allowing the anchoring of this holding plate in the front 11 and rear bases 13. Once anchored, the harpoon prohibits any movement.
  • heating body 3 can be fixed together, for example by gluing.
  • FIGS. 2A and 2B illustrate a first, unclaimed embodiment of a heater 1 comprising a heater 3 having a plurality of conductive plates 4 between which heating resistive elements (not shown) and radiant elements 9 of which only a portion are shown .
  • the heating body 3 is disposed between a front base 11 and a rear base 13. These front 11 and rear 13 bases have the form of rectangular housings adapted to receive the front and rear ends of the heating body 3.
  • the front base 11 comprises in in addition, a housing 21 inside which are arranged the connection terminals 15 (see figure 1 ), thereby forming a connector for connecting the heating body 3 to an electric power circuit powered for example by the vehicle battery.
  • the front 11 and rear 13 bases comprise receiving means 19 intended to cooperate with anchoring means 17 arranged at the ends of a holding plate 5 of the heating body 3.
  • These receiving means 19 comprise flexible tabs 125 arranged in the upper and lower portions of the front 11 and rear 13 bases.
  • Each of the bases comprises at least one flexible tongue.
  • each has two flexible tabs 125, substantially in the middle of the base.
  • the partial section of the Figure 2B shows that the holding plate 5 of the heating body 3 has transverse walls 37 giving them a U-shape at least at both ends. This example shows that except for its ends, the holding plate 5 is square.
  • each of the anchoring means 17 is formed by cutouts 39 in said transverse walls 37, so that the flexible tongues 125 are clipped or fit into these cutouts 39 of the holding plate 5.
  • the figure 3 is a variant of the figure 1 schematically showing a heating device whose heating body 3 comprises two holding plates 5a and 5b disposed on each of the two outer lateral sides of the heating body 3.
  • the figure 3 illustrates three conductive plates 4, two holding plates 5a and 5b, two rows of resistive element 7, and four rows of radiant element 9 but obviously these numbers can be arbitrary.
  • the holding plates 5a and 5b can also form conductive plates.
  • heating body 3 can be held together by gluing or by other types of assembly.
  • the two holding plates 5a and 5b of the heating body 3 each comprise at their two ends anchoring means 17 cooperating with associated receiving means 19 integrated in the front plates 11 and rear 13. This allows to maintain fixedly the heating body 3 between these bases before 11 and rear 13.
  • the anchoring means 17 can cooperate with the associated receiving means 19 by clipping.
  • the ends of the two holding plates Sa and 5b may have the shape of a harpoon thus allowing the anchoring of these outer conductive plates in the front 11 and rear bases 13. Once anchored, the harpoon prohibits any movement.
  • the anchoring means 17 of the two holding plates 5a and 5b may comprise lugs intended to be folded on the associated receiving means 19 integrated in the front 11 and rear 13 bases.
  • the heating body 3 can be fixed to each other, for example by gluing, with the exception of the two outer holding plates 5a and 5b.
  • the two outer holding plates 5a and 5b may not be part of the heating body 3 as such, and their anchors in the front 11 and rear 13 bases is sufficient to firmly hold the heating body 3 between these bases before 11 and back 13.
  • heating body 3 all the elements of the heating body 3 are fixed together, for example by gluing, including the two support plates 5a and 5b.
  • these two holding plates are an integral part of the heating body 3 and can be arranged inside the heating body.
  • FIGS. 4A to 8C illustrate several embodiments of a heating device comprising a heating body held between the front and rear bases by clipping.
  • FIGS. 4A to 4E illustrate a first, unclaimed embodiment of a heater 1 comprising a heater 3 having a plurality of conductive plates 5 between which heating resistive elements (not shown), two holding plates 5a1 and 5b1, and radiant elements 9 of which only a part is represented.
  • the heating body 3 is disposed between a front base 11 and a rear base 13. These front 11 and rear 13 bases have the form of rectangular housings adapted to receive the front and rear ends of the heating body 3.
  • the front base 11 comprises in in addition, a housing 21 inside which are arranged the connection terminals 15 (see figure 1 ), thereby forming a connector for connecting the heating body 3 to an electric power circuit powered for example by the vehicle battery.
  • Figure 4B illustrates a perspective view of the front base 11 showing openings 23 through which are introduced, at least a portion of the conductive plates to form the connection terminals.
  • the front 11 and rear 13 bases comprise receiving means 19 intended to cooperate with anchoring means 17 arranged at the ends of the two holding plates 5a1 and 5b1 of the heating body 3.
  • These receiving means 19 comprise flexible tongues 25 arranged in the upper and lower portions of the front 11 and rear 13 bases.
  • Each of the bases comprises at least one flexible tongue.
  • each has four flexible tabs 25, for example one in each corner, and each tab has a light 27.
  • each of the anchoring means 17 of the two holding plates 5a1 and 5b1 comprises, in the planes of these holding plates, opposite hooks 29, forming a kind of harpoon thus allowing these hooks 29 to be clipped or to fit into the slots 27 of the flexible tongues 25 in order to fix the heating body 3 between the front 11 and rear 13 bases.
  • these harpoons have the additional function of limiting the clearance between the two bases.
  • Figures 4B and 4C show that the front 11 and rear 13 bases may advantageously comprise first slots 31 for receiving the ends of one of the two holding plates (for example the plate 5b1) and second slots 33 for receiving the ends of the other holding plate 5a1.
  • the first 31 and second 33 slots thus ensure a correct adjustment of the holding plates 5b1 and 5a1 respectively. These slots thus provide guidance for the harpoons to fall into the holes 27.
  • first slots 31 provide a precise wedging of the holding plate 5b1 they host, and the second slots 33 have a clearance sufficient to accommodate said other holding plate 5a1 thus avoiding any problem related to the geometric dispersion, c that is, the manufacturing tolerances of the glued heating body 3.
  • the mounting of the heating body 3 in the front 11 and rear 13 bases is made accurately and simplicity.
  • connection terminals 15 are standard. Therefore, the conductive plates 4 may have folds 35 at the ends of the heating body 3 in order to respect the standard pitch between the connection terminals.
  • these folds 35 have other functions. They make it possible to maintain the radiant elements 9 in the heating body 3, for example during the gluing process. They also have a stop function, defining perfectly the length which separates the two bases (see Figure 5C ).
  • the Figure 4A shows that the heating body 3 has five rows of radiant elements 9 and that these two holding plates 5a1 and 5b1 are square-shaped.
  • the figure 5 is a variant of the heater shown in the Figure 4A .
  • the two holding plates 5a2 and 5b2 are U-shaped in all their lengths.
  • FIG. 6A is a perspective view of another unclaimed embodiment. According to this mode, see also Figures 6B and 6D , the receiving means are as before, flexible tabs 125 arranged in the upper and lower portions of the front 11 and rear 13 bases.
  • the two holding plates 5a3 and 5b3 of the heating body 3 comprise walls transverse 37 giving them a U-shape at least at both ends. Furthermore, each of the anchoring means 17 is formed by cutouts 39 in said transverse walls 37, so that the flexible tabs 125 are clipped or fit into these cutouts 39 of the holding plates 5a3 and 5b3.
  • the Figure 6A shows that except for their ends, the holding plates 5a3 and 5b3 are square-shaped. It is also possible that they are U-shaped in all their lengths.
  • FIGS 7A to 8C illustrate embodiments of a heating device 1 according to the invention.
  • the rectangular housings of the front 11 and rear 13 bases have on their lateral sides rails 41 projecting from the bases, for example U-shaped.
  • the two holding plates 5a4, 5b4, 5a5 and 5b5 of the heating body comprise walls having a U-shape only on their two ends and at the height of the rails 41 of the front 11 and rear 13 bases.
  • Figures 7A to 8C show that the receiving means comprise flexible tongues 225, 325 arranged in the rails 41 of the front 11 and rear 13 bases.
  • the flexible tabs 225 are formed on the side walls of the rails 41 of the bases.
  • each of the anchoring means 17 is formed by a recess 43 at the end and in the plane of each of the holding plates 5a4 and 5b4.
  • the flexible tongues 225 cluck or fit into the recesses 43 of the holding plates 5a4 and 5b4.
  • the holding plate 5a4 is a conductive plate having a fold 135 in order to respect a standard pitch between the connection terminals 15 but also to retain the radiating elements 9.
  • the pitch between the conductive plates 4 is identical to that between the terminals 15 connection, these conductive plates 4 have folds or flaps 35 for wedging the radiant elements 9 which are not represented in the Figures 7A and 7C to clarify more.
  • the flexible tongues 325 are formed in the upper and lower portions of the U-shaped rails 41 of the front 11 and rear 13 bases.
  • each of the anchoring means is formed by cutouts 45 in the transverse walls of the holding plates 5a5 and 5b5, so that the flexible tongues 325 are clipped or fit into these cutouts 45 during assembly of the body heating 3 between the front 11 and rear 13 bases.
  • each of the rails 41 U-shaped front plates 11 and rear 13 may have on its side wall a flexible blade 47 providing a precise wedging of the holding plates thus avoiding any problem related to the geometric dispersion of the heating body.
  • FIGS 9A to 10C illustrate other embodiments of a heating device 1 in which a heating body 3 is held between the front 11 and rear 13 bases by folding a portion of the two holding plates 5a6, 5b6, 5a7 and 5b7 on reception means 19 integrated in the front 11 and rear 13 bases.
  • anchoring means 17 of the two holding plates 5a6, 5b6, 5a7 and 5b7 comprise tabs 51 intended to be folded on the associated receiving means 19 integrated in the front 11 and rear 13 bases.
  • each of the receiving means 19 has recesses 53 in the upper and lower portions of the front 11 and rear 13 bases, so that the tabs 51 at the ends of the holding plates 5a6 and 5b6 bend in the respective recesses.
  • Figures 10A to 10C show that the rectangular housings of the front 11 and rear 13 bases have on their lateral sides rails 141, for example U-shaped and each of the receiving means 19 has lugs 55 formed on these rails, so that the tabs 51 to ends of the holding plates 5a7 and 5b7 fold on the rails 141 just outside the lugs 55.
  • the two holding plates 5a7 and 5b7 have a U-shape in all their lengths between the lugs 55 and fit on the rails 141 of the front 11 and rear 13 bases.
  • the small tabs 51 at the ends of the holding plates 5a7 and 5b7 are raised to allow the mounting of the bases 11 and 13 by making them slide in the two holding plates 5a7 and 5b7. Then, these small tabs 51 are folded over the rails 141 thus enclosing the lugs 55.
  • each of the rails 141 in the shape of a U may comprise on its side wall a flexible strip 147 providing a precise wedging of the holding plates 5a7 and 5b7 thus avoiding any problem related to the geometrical dispersion of the heating body 3.

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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)
  • Resistance Heating (AREA)

Claims (20)

  1. Elektrisches Heizgerät (1), das einen Heizkörper (3) aufweist, der mehrere Leitplatten (4) aufweist, zwischen denen Heizelemente (7) mit Widerstand und Strahlungselemente (9) angebracht sind, die die Wärmeaustauschfläche mit einem Luftstrom erhöhen, der das Heizgerät durchquert, wobei der Heizkörper (3) zwischen einem vorderen Halter (11) und einem hinteren Halter (13) angeordnet ist, wobei der Heizkörper (3) ferner mindestens eine Halteplatte (5; 5a, 5b) des Heizkörpers (3) aufweist, die an ihren Enden Verankerungsmittel (17) aufweist, die mit zugehörigen Aufnahmemitteln (19) durch Einrasten zusammenwirken und in den vorderen (11) und den hinteren Halter (13) integriert sind, um den Heizkörper (3) fest zwischen diesem vorderen (11) und diesem hinteren (13) Halter zu halten, dadurch gekennzeichnet, dass der vordere (11) und der hintere Halter (13) die Form von rechteckigen Gehäusen aufweisen, die angepasst sind, um die Enden des Heizkörpers (3) aufzunehmen, und an ihren seitlichen Seiten Schienen (41) aufweisen, die von den Haltern vorstehen und mit zwei Halteplatten (5a, 5b) zusammenwirken, die auf den zwei seitlichen Außenseiten des Heizkörpers (3) angeordnet sind.
  2. Gerät nach Anspruch 1, dadurch gekennzeichnet, dass mindestens ein Teil der Leitplatten (4) an dem vorderen Halter (11) hervorsteht, um Klemmen (15) für den Anschluss an einen Stromversorgungskreis zu bilden.
  3. Gerät nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die Aufnahmemittel (19) biegsame Zungen (25; 125) aufweisen, die in dem oberen und dem unteren Teil des vorderen (11) und des hinteren Halters (13) eingerichtet sind.
  4. Gerät nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass die zwei Halteplatten (5a3, 5b3) des Heizkörpers (3) Querwände aufweisen, die mindestens an ihren zwei Enden eine U-Form aufweisen, wobei jedes der Verankerungsmittel (17) durch Ausschnitte in den Querwänden gebildet ist, derart, dass die biegsamen Zungen (125) sich in die Ausschnitte der äußeren Leitplatten (5a3, 5b3) einfügen.
  5. Gerät nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass die Aufnahmemittel (19) biegsame Zungen (225; 325) aufweisen, die in den U-förmigen Schienen (41) eingerichtet sind.
  6. Gerät nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass die zwei Halteplatten (5a4, 5b4; 5a5, 5b5) des Heizkörpers (3) Querwände aufweisen, die mindestens an ihren zwei Enden eine U-Form aufweisen.
  7. Gerät nach Anspruch 6, dadurch gekennzeichnet, dass die zwei äußeren Leitplatten (5a4, 5b4; 5a5, 5b5) über ihre gesamten Längen U-förmig sind.
  8. Gerät nach einem der Ansprüche 1 bis 3 und 5 bis 7, dadurch gekennzeichnet, dass jedes der Verankerungsmittel (17) durch eine Aussparung (43) in der Ebene von jeder der Halteplatten (5a4, 5b4), die an mindestens ihren zwei Enden die U-Form aufweisen, gebildet ist, und die biegsamen Zungen (225) auf den Seitenwänden der U-förmigen Schienen (41) gebildet sind, derart, dass die biegsamen Zungen sich in die Aussparungen (43) der Halteplatten (5a4, 5b4) einfügen.
  9. Gerät nach einem der Ansprüche 1 bis 3 und 5 bis 7, dadurch gekennzeichnet, dass jedes der Verankerungsmittel (17) durch Ausschnitte (45) in den Querwänden der Halteplatten (5a5, 5b5) gebildet ist, die an mindestens ihren zwei Enden die U-Form aufweisen, und die biegsamen Zungen (325) in den Schenkeln des U der Schienen (41) gebildet sind, derart, dass die biegsamen Zungen (325) sich in die Ausschnitte (45) der Halteplatten (5a5, 5b5) einfügen.
  10. Gerät nach Anspruch 9, dadurch gekennzeichnet, dass jede der U-förmigen Schienen (41) auf ihrer Seitenwand eine biegsame Lamelle (47) aufweist, die eine genaue Verkeilung der Halteplatten gewährleistet, wodurch jede Art von Problem in Verbindung mit der geometrischen Streuung des Heizkörpers (3) vermieden wird.
  11. Gerät nach Anspruch 1, dadurch gekennzeichnet, dass die Verankerungsmittel (17) der zwei Halteplatten (5a6, 5b6; 5a7, 5b7) Laschen (51) aufweisen, die dazu bestimmt sind, auf den zugehörigen Aufnahmemitteln (19) gefaltet zu werden, die in den vorderen (11) und den hinteren (13) Halter integriert sind.
  12. Gerät nach Anspruch 11, dadurch gekennzeichnet, dass jedes der Aufnahmemittel (19) Vertiefungen (53) in dem oberen und dem unteren Teil des vorderen (11) und des hinteren (13) Halters aufweist, derart, dass die Laschen der Halteplatten (5a6, 5b6) sich in den entsprechenden Vertiefungen (53) falten.
  13. Gerät nach Anspruch 11, dadurch gekennzeichnet, dass die rechteckigen Gehäuse des vorderen (11) und des hinteren Halters (13) auf ihren seitlichen Seiten Schienen (141) in U-Form aufweisen und jedes der Aufnahmemittel (19) Vorsprünge (55) aufweist, die auf diesen Schienen gebildet sind, derart, dass die Laschen (51) der Halteplatten (5a7, 5b7) sich auf den Schienen (141) direkt außerhalb der Vorsprünge (55) falten.
  14. Gerät nach Anspruch 13, dadurch gekennzeichnet, dass die zwei Halteplatten (5a7, 5b7) auf allen ihren Längen zwischen den Vorsprüngen (55) eine U-Form aufweisen und sich auf den Schienen (141) des vorderen (11) und des hinteren (13) Halters anpassen.
  15. Gerät nach Anspruch 14, dadurch gekennzeichnet, dass jede der U-förmigen Schienen (141) auf ihrer Seitenwand eine biegsame Lamelle (147) aufweist, die eine genaue Verkeilung der Halteplatten (5a7, 5b7) gewährleistet, wodurch jede Art von Problem in Verbindung mit der geometrischen Streuung des Heizkörpers (3) vermieden wird.
  16. Gerät nach einem der Ansprüche 1 bis 15, dadurch gekennzeichnet, dass alle Elemente des Heizkörpers (3) mit Ausnahme der zwei Halteplatten (5a, 5b) untereinander durch Kleben befestigt sind.
  17. Gerät nach einem der Ansprüche 1 bis 16, dadurch gekennzeichnet, dass alle Elemente des Heizkörpers (3) einschließlich der zwei Halteplatten (5a, 5b) untereinander durch Kleben befestigt sind.
  18. Gerät nach einem der Ansprüche 1 bis 17, dadurch gekennzeichnet, dass die Leitplatten (4) Falten an den Enden des Heizkörpers (3) aufweisen, damit die Anschlussklemmen (15) einen Standardabstand aufweisen.
  19. Gerät nach einem der Ansprüche 1 bis 18, dadurch gekennzeichnet, dass die Halteplatte oder die Halteplatten (5; 5a, 5b) auch eine oder mehrere Leitplatten bildet/bilden.
  20. Gerät nach einem der Ansprüche 1 bis 19, dadurch gekennzeichnet, dass der vordere (11) und der hintere Halter (13) aus Kunststoff hergestellt sind.
EP04005884.4A 2003-03-25 2004-03-12 Elektrisches Heizgerät mit einem Heizkörper Expired - Lifetime EP1462733B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0303658 2003-03-25
FR0303658A FR2853198B1 (fr) 2003-03-25 2003-03-25 Dispositif de chauffage electrique comprenant un corps chauffant

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EP1462733A1 EP1462733A1 (de) 2004-09-29
EP1462733B1 true EP1462733B1 (de) 2014-10-22

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Publication number Priority date Publication date Assignee Title
DE602005009157D1 (de) * 2005-06-09 2008-10-02 Cebi Spa Elektrischer Heizer für Fahrzeugventilationsanordnung
DE102006053525B3 (de) * 2006-11-07 2008-05-08 Evo Elektroheizungen Gmbh Elektroheizkörper und Verfahren zur Herstellung eines Elektroheizkörpers
EP1967398A1 (de) 2007-03-06 2008-09-10 CEBI S.p.A. Elektrische Heizeinheit für Fahrzeugbelüftungssysteme
FR2922817B1 (fr) * 2007-10-31 2012-12-21 Valeo Systemes Thermiques Dispositif de chauffage electrique d'un flux d'air circulant a l'interieur d'une installation de ventilation, de chauffage et/ou de climatisation d'un vehicule automobile
FR2942867B1 (fr) * 2009-03-03 2011-03-25 Valeo Systemes Thermiques Dispositif de chauffage, notamment pour vehicule automobile
KR101510744B1 (ko) * 2014-04-23 2015-04-09 자화전자(주) 전열 히터 장치
FR3032390B1 (fr) * 2015-02-10 2018-07-27 Valeo Systemes Thermiques Boitier d'un dispositif de chauffage electrique
CN105409653A (zh) * 2015-11-25 2016-03-23 浙江哈亿曼电子科技有限公司 一种利用太阳能和ptc发热片的温室
FR3056067B1 (fr) * 2016-09-09 2020-11-13 Valeo Systemes Thermiques Dispositif de chauffage electrique
FR3056456B1 (fr) * 2016-09-29 2018-09-14 Valeo Systemes Thermiques Cadre d'un dispositif de chauffage electrique comprenant un moyen de deformation plastique
FR3056454B1 (fr) * 2016-09-29 2019-04-19 Valeo Systemes Thermiques Cadre d'un dispositif de chauffage electrique comprenant un moyen de deformation plastique
FR3062964A1 (fr) * 2017-02-14 2018-08-17 Valeo Systemes Thermiques Interface de connexion electrique d'un dispositif de chauffage electrique pour vehicule automobile
FR3078145B1 (fr) * 2018-02-19 2021-10-29 Valeo Systemes Thermiques Cadre d'un dispositif de chauffage electrique comprenant un element deformable elastiquement
CN109131398A (zh) * 2018-09-04 2019-01-04 佛山铮荣科技有限公司 高安全性的轨道车厢电加热器
FR3101401B1 (fr) * 2019-09-26 2021-10-01 Valeo Systemes Thermiques Bloc de chauffe d’un dispositif chauffant.

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Publication number Priority date Publication date Assignee Title
IT249474Y1 (it) * 2000-02-17 2003-05-19 Eltek Spa Radiatore elettrico.

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EP1462733A1 (de) 2004-09-29
FR2853198B1 (fr) 2006-03-24
FR2853198A1 (fr) 2004-10-01

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