EP1523226B1 - Heating assembly with PTC elements, particularly for motor vehicles - Google Patents

Heating assembly with PTC elements, particularly for motor vehicles Download PDF

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Publication number
EP1523226B1
EP1523226B1 EP03292475.5A EP03292475A EP1523226B1 EP 1523226 B1 EP1523226 B1 EP 1523226B1 EP 03292475 A EP03292475 A EP 03292475A EP 1523226 B1 EP1523226 B1 EP 1523226B1
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EP
European Patent Office
Prior art keywords
heating arrangement
arrangement according
ptc element
frame
plug
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
EP03292475.5A
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German (de)
French (fr)
Other versions
EP1523226A1 (en
Inventor
Michel Brun
Christophe Schmittheisler
Pascal Miss
Maxime Mundel
Yannick Papi
Mathieu Mougey
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Mahle Behr France Rouffach SAS
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Behr France Rouffach SAS
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Application filed by Behr France Rouffach SAS filed Critical Behr France Rouffach SAS
Priority to EP03292475.5A priority Critical patent/EP1523226B1/en
Priority to US10/959,608 priority patent/US7399948B2/en
Publication of EP1523226A1 publication Critical patent/EP1523226A1/en
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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
    • 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—Heater elements characterised by the composition or nature of the materials or by the arrangement of the conductor
    • H05B3/12—Heater elements characterised by the composition or nature of the materials or by the arrangement of the conductor characterised by the composition or nature of the conductive material
    • H05B3/14—Heater elements characterised by the composition or nature of the materials or by the arrangement of the conductor characterised by the composition or nature of the conductive material the material being non-metallic
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • 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
    • H05B2203/02—Heaters using heating elements having a positive temperature coefficient

Description

Die Erfindung betrifft eine Heizungsanordnung mit einem PTC-Element, insbesondere für ein Kraftfahrzeug, gemäß dem Oberbegriff des Anspruchs 1.The invention relates to a heating arrangement with a PTC element, in particular for a motor vehicle, according to the preamble of claim 1.

Aus der DE 101 44 757 A1 ist eine Heizungsanordnung mit einem PTC-Element für Personenfahrzeuge bekannt, wobei eine Zusatzheizung mit einem Heizkörper, der im Betrieb der Zusatzheizung von Heizluft durchströmt wird, und mit mindestens einer Luftaustrittsöffnung im Fußbereich eines Fahrgastraumes versehen ist, zu der die Heizluft geleitet wird. Um auf flexible Weise eine vertikale Temperaturschichtung im Fahrgastraum erzeugen zu können, die insbesondere auch an Sitzen im Fond als angenehm empfunden wird, ist der Heizkörper als ein elektrisches PTC-Element gestaltet, welches unmittelbar an der Luftaustrittsöffnung im Fußbereich angeordnet ist. Ein derartiger Zuheizer lässt noch Wünsche offen. Gemäß einem offenbarten Ausführungsbeispiel ist ein PTC-Element in Gestalt mehrerer Heizwaben in einem nicht näher beschriebenen Kunststoff-Rahmen angeordnet, der die Luftaustrittsöffnung einfasst.From the DE 101 44 757 A1 a heating arrangement with a PTC element for passenger vehicles is known, wherein an additional heating with a radiator, which is flowed through in the operation of the additional heating of heating air, and provided with at least one air outlet opening in the foot of a passenger compartment to which the heating air is passed. In order to be able to produce a vertical temperature stratification in the passenger compartment in a flexible manner, which is particularly pleasant for seats in the rear, the radiator is designed as an electrical PTC element, which is arranged directly on the air outlet opening in the foot region. Such a heater can still be desired. According to a disclosed embodiment, a PTC element is arranged in the form of several Heizwaben in a plastic frame not described in detail, which encloses the air outlet opening.

In der DE 197 06 199 A1 ist ein PTC-Heizkörper für ein Kraftfahrzeug offenbart, der einen aus zwei Teilen bestehenden Kunststoffrahmen aufweist. Die beiden Teile des Kunststoffrahmens sind mittels zweier gesondert ausgebildeter Federklammern miteinander verbunden.In the DE 197 06 199 A1 discloses a PTC radiator for a motor vehicle, comprising a two-part plastic frame. The two parts of the plastic frame are connected to each other by means of two separately formed spring clips.

In der EP 1 182 908 A1 ist ein PTC-Heizkörper beschrieben, bei dem zur Befestigung der PTC-Elemente zweiseitig mit Klebstoff beschichtete Metallfolien verwendet werden.In the EP 1 182 908 A1 a PTC radiator is described in which two-sided adhesive-coated metal foils are used to fasten the PTC elements.

Es ist Aufgabe der Erfindung, eine verbesserte Heizungsanordnung mit PTC-Element zur Verfügung zu stellen.It is an object of the invention to provide an improved heating arrangement with PTC element available.

Diese Aufgabe wird gelöst durch eine Heizungsanordnung mit einem PTC-Element mit den Merkmalen des Anspruchs 1. Vorteilhafte Ausgestaltungen sind Gegenstand der Unteransprüche.This object is achieved by a heating arrangement with a PTC element having the features of claim 1. Advantageous embodiments are the subject matter of the subclaims.

Erfindungsgemäß ist eine Heizungsanordnung mit einem PTC-Element vorgesehen, die einen das PTC-Element sowie diesem zugeordnete Wellrippen, worunter auch andere, Wellrippen entsprechende Wärmeübertragungsanordnungen verstanden werden sollen, aufnehmenden Kunststoff-Rahmen aufweist, der zweiteilig ausgebildet ist. Bevorzugt erfolgt die Verbindung zwischen den beiden Teilen des Kunststoff-Rahmens mittels einer ClipsVerbindung, jedoch sind auch andere Verbindungen, insbesondere eine Schiebe-Verbindung, möglich.According to the invention, a heating arrangement with a PTC element is provided, which has a PTC element and this associated corrugated fins, which include other corrugated fins corresponding heat transfer assemblies to be understood, receiving plastic frame which is formed in two parts. Preferably, the connection between the two parts of the plastic frame by means of a clip connection, but other connections, in particular a sliding connection, possible.

Der Kunststoff-Rahmen weist vorzugsweise mindestens eine Öffnung, insbesondere zwei Öffnungen, für zwei Kontaktbleche auf, wobei der Kunst-stoff-Rahmen in der Nähe der Öffnung bzw. der Öffnungen bevorzugt als Stecker ausgebildet ist.The plastic frame preferably has at least one opening, in particular two openings, for two contact sheets, wherein the plastic frame in the vicinity of the opening or the openings is preferably designed as a plug.

Der Stecker ist bevorzugt in einem rechten Winkel zu den den elektrischen Kontakt herstellenden Kontaktblechen ausgebildet, wobei ein Kabel und der Stecker bevorzugt parallel zur Richtung des Luftstromes ausgerichtet sind. Dies ermöglicht eine einfache, raumsparende Anordnung.The plug is preferably formed at a right angle to the electrical contacting contact plates, wherein a cable and the plug are preferably aligned parallel to the direction of the air flow. This allows a simple, space-saving arrangement.

Bevorzugt ist das PTC-Element an einem Kontaktblech mittels einer Klebe-Verbindung angebracht. Eine derartige Klebe-Verbindung ist einfach herzustellen und bildet eine sichere Verbindung. Bevorzugt wird ein ZweiKomponenten-Silikon-Klebstoff verwendet. Bevorzugt sind auf beiden Seiten des PTC-Elements Kontaktbleche angebracht, welche parallel zueinander verlaufen.Preferably, the PTC element is attached to a contact plate by means of an adhesive connection. Such an adhesive connection is easy to manufacture and forms a secure connection. Preferably, a two-component silicone adhesive is used. Preferably, contact plates are mounted on both sides of the PTC element, which run parallel to each other.

Auf der dem PTC-Element abgewandten Seite des Kontaktblechs ist vorzugsweise eine Wellrippe mittels einer Klebe-Verbindung angebracht, insbesondere mittels eines Zwei-Komponenten-Silikon-Klebstoffs. Ferner ist bevorzugt auf der dem PTC-Element abgewandten Seite der Wellrippe ein weiteres Kontaktblech mittels einer Klebe-Verbindung an der Wellrippe angebracht, bevorzugt mittels eines Zwei-Komponenten-Silikon-Klebstoffs.On the side of the contact sheet facing away from the PTC element, a corrugated rib is preferably attached by means of an adhesive connection, in particular by means of a two-component silicone adhesive. Further, on the side facing away from the PTC element of the corrugated fin is preferably another Contact plate attached by means of an adhesive connection to the corrugated fin, preferably by means of a two-component silicone adhesive.

Vorzugsweise sind zwei Kontaktbleche derart ausgebildet, dass sie an ihrem einen Ende als Teil eines Steckers ausgebildet. Dies vereinfacht die Montage, da an den Kontaktblechen kein Stecker angebracht werden muss. Hierfür sind die beiden Kontaktbleche bevorzugt L-förmig ausgebildet.Preferably, two contact sheets are formed such that they are formed at one end as part of a plug. This simplifies assembly, since no plug must be attached to the contact plates. For this purpose, the two contact plates are preferably L-shaped.

Am Rahmen ist vorzugsweise eine Lasche zur Anbringung der Heizungsanordnung in oder an einem Luftkanal vorgesehen. Die Befestigung kann vorzugsweise mittels einer oder mehrerer Schrauben oder mittels einer ClipsVerbindung erfolgen.The frame is preferably provided a tab for mounting the heater assembly in or on an air duct. The attachment may preferably be effected by means of one or more screws or by means of a clip connection.

Am Rahmen sind erfindungsgemäß auf der Innenseite in Richtung des Luftstromes verlaufenden Rippen vorgesehen. Diese dienen unter anderem der Erhöhung der Stabilität des Rahmens, sowie der Führung der im Rahmen angeordneten Anordnung von PCT-Element, Wellrippen und Kontaktblechen.On the frame according to the invention are provided on the inside in the direction of the air flow extending ribs. Among other things, these serve to increase the stability of the frame, as well as the guidance of the arranged in the frame arrangement of PCT element, corrugated fins and contact plates.

Im Folgenden wird die Erfindung anhand mehrerer Ausführungsbeispiele unter Bezugnahme auf die Zeichnung im Einzelnen erläutert. In der Zeichnung zeigen;

Fig. 1
eine perspektivische Ansicht auf eine erfindungsgemäβe Heizungsanordnung gemäß dem ersten Ausführungsbeispiel,
Fig. 2
eine andere perspektivische Ansicht auf die Heizungsanordnung von Fig. 1,
Fig. 3
die Heizungsanordnung von Fig. 1 in einer Explosionsdarstellung,
Fig. 4
eine Draufsicht auf die Heizungsanordnung von Fig. 1,
Fig. 5a und 5b
eine Darstellung der Integration in die Luftkanäle aus zwei verschiedenen Perspektiven,
Fig. 6
eine perspektivische Ansicht eines Heizgitters mit PTC-Element ohne Rahmen,
Fig. 7a und 7b
perspektivische Ansichten des Heizgitters von Fig. 6 ohne PTC-Element,
Fig. 8
eine perspektivische Ansicht auf eine Heizungsanordnung gemäß dem zweiten Ausführungsbeispiel,
Fig. 9
einen Längsschnitt durch die Heizungsanordnung von Fig. 8,
Fig. 10
eine Detailansicht eines Wandbereichs,
Fig. 11
eine Explosionsdarstellung der Heizungsanordnung von Fig. 8, und
Fig. 12
eine Darstellung der Heizungsanordnung von Fig. 8 mit teilweise aufgeschobenem-Deckel aus einer anderen Perspektive.
In the following the invention with reference to several embodiments with reference to the drawings will be explained in detail. In the drawing show;
Fig. 1
a perspective view of a erfindungsgemäβe heater assembly according to the first embodiment,
Fig. 2
another perspective view of the heating arrangement of Fig. 1 .
Fig. 3
the heating arrangement of Fig. 1 in an exploded view,
Fig. 4
a plan view of the heating arrangement of Fig. 1 .
Fig. 5a and 5b
a presentation of the integration into the air ducts from two different perspectives,
Fig. 6
a perspective view of a heater grid with PTC element without frame,
Fig. 7a and 7b
perspective views of the heating grid of Fig. 6 without PTC element,
Fig. 8
a perspective view of a heater assembly according to the second embodiment,
Fig. 9
a longitudinal section through the heating arrangement of Fig. 8 .
Fig. 10
a detailed view of a wall area,
Fig. 11
an exploded view of the heater assembly of Fig. 8 , and
Fig. 12
a representation of the heating arrangement of Fig. 8 with partially pushed lid from a different perspective.

Bei einer erfindungsgemäßen einstufige PTC-Heizungsanordnung 1 mit einem PTC-Element 2 ist das PTC-Element 2 zwischen zwei Kontaktblechen 3 und 4 eingeklebt, vorliegend mittels eines Zwei-Komponenten-Silikon-Klebstoffes, wobei das mit dem Bezugszeichen 3 versehene Kontaktblech L-förmig ausgebildet ist und mit seinem abgewinkelten Ende einen Teil eines Steckers 5 bildet. Das mit dem Bezugszeichen 4 bezeichnete Kontaktblech ist im Wesentlichen rechteckförmig ausgebildet und parallel zum anderen Kontaktblech 3 angeordnet.In a single-stage PTC heating arrangement 1 according to the invention with a PTC element 2, the PTC element 2 is adhesively bonded between two contact plates 3 and 4, in the present case by means of a two-component silicone adhesive, wherein the contact plate provided with the reference numeral 3 is L-shaped is formed and forms a part of a plug 5 with its angled end. The designated by the reference numeral 4 contact plate is substantially rectangular in shape and arranged parallel to the other contact plate 3.

Auf den jeweils dem PTC-Element 2 gegenüberliegenden Seiten der Kontaktbleche 3 und 4 sind mittels einer entsprechenden Klebe-Verbindung Wellrippen 6 angebracht und an diesen, ebenfalls wiederum mit einer entsprechenden Klebe-Verbindung je ein weiteres Kontaktblech 3 und 4, wobei diese Kontaktbleche den zuvor beschriebenen Kontaktblechen 3 und 4 entsprechen.On the respective opposite sides of the PTC element 2 of the contact plates 3 and 4 are by means of a corresponding adhesive connection Corrugated ribs 6 and attached thereto, again in turn with a corresponding adhesive connection depending on a further contact plate 3 and 4, said contact plates correspond to the contact plates 3 and 4 described above.

Um die zuvor beschriebene Anordnung herum ist ein zweiteiliger Kunststoff-Rahmen 7 angeordnet. Ein Teil 7' weist einen rechteckförmigen Bereich, welcher das PTC-Element 2, die Kontaktbleche 3 und 4, sowie die Wellrippen 6 aufnimmt, und einen mit diesem verbundenen kastenförmigen Bereich, welcher den äußeren Teil des Steckers 5 bildet, auf. Der zweite Teil 7" des Kunststoff-Rahmens 7 ist C-förmig ausgestaltet und auf den ersten Teil 7' mittels einer Clips-Verbindung 8 geclipst. Hierfür sind am den beiden Schenkeln des zweiten Teils 7" Vorsprünge vorgesehen, die in entsprechende im ersten Teil 7' vorgesehene Öffnungen ragen und eine schnelle und sichere Verbindung der beiden Teile 7' und 7" ermöglichen, wobei der zweite Teil 7" sicher stellt, dass die Anordnung sicher im Kunststoff-Rahmen 7 gehalten wird.Around the arrangement described above, a two-part plastic frame 7 is arranged. A part 7 'has a rectangular area which accommodates the PTC element 2, the contact sheets 3 and 4, and the corrugated fins 6, and a box-shaped area connected to this, which forms the outer part of the plug 5 on. The second part 7 "of the plastic frame 7 is configured C-shaped and clipped onto the first part 7 'by means of a clip connection 8. For this purpose, protrusions are provided on the two legs of the second part 7" which are correspondingly in the first part 7 'provided openings protrude and allow a quick and secure connection of the two parts 7' and 7 ", wherein the second part 7" ensures that the arrangement is securely held in the plastic frame 7.

Am ersten Teil 7' sind Rippen 9 angeordnet, die parallel zueinander in Richtung des Luftstroms verlaufen. Die Richtung des Luftstroms ist in Fig. 5b durch Pfeile angedeutet. Die Rippen 9 erhöhen die Festigkeit des Kunststoff-Rahmens 7. Ferner sind im-ersten Teil 7' zwei schlitzförmige Öffnungen 10 vorgesehen, welche einen Durchlass für die L-förmigen Kontaktbleche 3 bilden.On the first part 7 'ribs 9 are arranged, which extend parallel to each other in the direction of the air flow. The direction of the airflow is in Fig. 5b indicated by arrows. The ribs 9 increase the strength of the plastic frame 7. Furthermore, two slot-shaped openings 10 are provided in the first part 7 ', which form a passage for the L-shaped contact plates 3.

Am Teil 7', an den beiden Ecken, die vom Stecker 5 beabstandet sind, sind Vorsprünge 11 vorgesehen, welche der zusätzlichen Fixierung der Anordnung im Kunststoff-Rahmen 7 dienen. Auf der Unterseite des Teils 7' sind, wie Fig. 2 entnommen werden kann, mittig in der Längsachse des Teils 7' angeordnet, ebenfalls zwei Vorsprünge 12 vorgesehen, welche zur Positionierung der Anordnung im Kunststoff-Rahmen 7 in der entsprechenden Richtung dienen. Der Kunststoff-Rahmen 7 weist ferner eine am Teil 7' angeordnete Lasche 13 auf, welche zur Befestigung in einem Luftkanal mittels einer Schraube (nicht dargestellt) dient (siehe Fig. 5b). Alternativ kann die Befestigung beispielsweise mittels einer Clips-Verbindung erfolgen.At the part 7 ', at the two corners, which are spaced from the plug 5, projections 11 are provided, which serve the additional fixation of the arrangement in the plastic frame 7. On the bottom of part 7 'are how Fig. 2 can be removed, arranged centrally in the longitudinal axis of the part 7 ', also two projections 12 are provided which serve to position the assembly in the plastic frame 7 in the appropriate direction. The plastic frame 7 further comprises a part 7 'arranged on the tab 13, which for attachment in an air duct by means of a screw (not shown) is used (see Fig. 5b ). Alternatively, the attachment can be made for example by means of a clip connection.

Wie aus Fig. 4 ersichtlich, ist das Verhältnis der freien Fläche, welche etwa a x d entspricht, zur Gesamtfläche b x c recht groß, so dass der Druckabfall im Luftkanal verhältnismäßig gering ist, so dass eine relativ geringe Gebläseleistung erforderlich ist. Hierbei entspricht a der durchströmbaren Breite, b der Gesamtbreite, c der Gesamtlänge und d der durchströmbaren Länge der Heizungsanordnung 1 ohne Stecker 5. Vorliegend liegt das Verhältnis von a x d zu b x c bei ca. 84%.How out Fig. 4 As can be seen, the ratio of the free area, which corresponds to axd approximately to the total area bxc is quite large, so that the pressure drop in the air duct is relatively low, so that a relatively low fan performance is required. In this case, a corresponds to the permeable width, b to the total width, c to the total length and d to the permeable length of the heating arrangement 1 without plug 5. In the present case, the ratio of axd to bxc is approximately 84%.

Vorzugsweise ist die Heizungsanordnung mit PTC-Element als dezentraler Zuheizer außerhalb des Klimagerätes beispielsweise in entsprechenden Luftkanälen in der A-Säule, B-Säule, C-Säule oder in einer Tür angeordnet.Preferably, the heating arrangement is arranged with PTC element as a decentralized heater outside of the air conditioner, for example in corresponding air ducts in the A-pillar, B-pillar, C-pillar or in a door.

Das im Folgenden unter Bezugnahme auf die Figuren 8 bis 12 beschriebene zweite Ausführungsbeispiel entspricht im Wesentlichen dem zuvor beschriebenen ersten Ausführungsbeispiel, so dass gleiche und gleichwirkende Elemente mit den gleichen Bezugszeichen versehen sind.The following with reference to the FIGS. 8 to 12 described second embodiment substantially corresponds to the first embodiment described above, so that the same and equivalent elements are provided with the same reference numerals.

Die Anordnung zweier Kontaktbleche 3, 4 in einem zweiteiligen Kunststoff-Rahmen 7, bestehend aus einem ersten Teil 7' und einem zweiten Teil 7", entspricht der des ersten Ausführungsbeispiels, jedoch weist der Rahmen 7 keine Clips-Verbindung 8, sondern eine Schiebe-Verbindung 8' auf, wie insbesondere Fig. 11 entnommen werden kann. Hierbei ist im zweiten Teil 7" ein entsprechend ausgebildeter Schlitz vorgesehen, der seitlich über eine Verengung zwischen dem die PTC-Elemente 2, die Kontaktbleche 3, 4 und die Wellrippe 6 aufnehmenden Bereich und dem Stecker 5 des ersten Teils 7' geschoben wird, so dass die Heizungsanordnung 1 sicher zusammengehalten wird.The arrangement of two contact plates 3, 4 in a two-part plastic frame 7, consisting of a first part 7 'and a second part 7 ", corresponds to that of the first embodiment, but the frame 7 has no clip connection 8, but a sliding Compound 8 'on, in particular Fig. 11 can be removed. Here, a correspondingly formed slot is provided in the second part 7 ", which is laterally pushed over a constriction between the PTC elements 2, the contact plates 3, 4 and the corrugated rib 6 receiving area and the plug 5 of the first part 7 ', so that the heater assembly 1 is securely held together.

Entsprechend dem ersten Ausführungsbeispiel sind im Rahmen 7 Rippen 9 vorgesehen, welche einen Abstand zwischen den beheizten Elementen, worunter im Folgenden auch die Kontaktbleche 3, 4 und die Wellrippe 6 verstanden wird, und dem Rahmen 7 bewirken, so dass die Wärmebelastung des Rahmens 7 verringert wird. Der Rahmen 7 besteht aus einem Kunststoff mit einer erhöhten Temperaturbeständigkeit, wie beispielsweise Polyamid.According to the first embodiment, ribs 9 are provided in the frame 7, which cause a distance between the heated elements, which hereinafter also the contact plates 3, 4 and the corrugated fin 6, and the frame 7, so that the heat load of the frame 7 is reduced becomes. The frame 7 is made of a plastic having an increased temperature resistance, such as polyamide.

Ferner bildet der Rahmen 7 selbst eine lsolierwand, so dass der Wärmeverlust möglichst gering gehalten wird und benachbarte Bauteile, wie beispielsweise Sicherheitsgurte, durch die erhöhte Temperatur im Falle eines Zuheizens nicht beeinträchtigt oder beschädigt werden. Die Isolierwand kann auch getrennt ausgebildet sein.Furthermore, the frame 7 itself forms an insulating wall, so that the heat loss is kept as low as possible and adjacent components, such as seat belts, are not impaired or damaged by the increased temperature in the case of an auxiliary heating. The insulating wall can also be formed separately.

Als weitere Maßnahme zum Schutz einer Überhitzung sind gemäß dem zweiten Ausführungsbeispiel PTC-Elemente 2 gewählt, die eine Betriebstemperatur von zwischen 80°C und 120°C haben, im Gegensatz zu den herkömmlichen PTC-Elementen mit einer Oberflächentemperatur von 130°C bis 165°C. Ein entsprechender Schutz kann auch durch die Verwendung eines Reglers erreicht werden, der bei Erreichen einer bestimmten Temperatur in der Umgebung der Heizungsanordnung die Leistung reduziert oder zeitweise die Stromversorgung ganz abschaltet.As a further measure to protect overheating PTC elements 2 are selected according to the second embodiment, which have an operating temperature of between 80 ° C and 120 ° C, in contrast to the conventional PTC elements with a surface temperature of 130 ° C to 165 ° C. Such protection may also be achieved by the use of a regulator which, when a certain temperature is reached in the vicinity of the heater assembly, reduces power or at times shuts off power completely.

BezugszeichenlisteLIST OF REFERENCE NUMBERS

  • 1 Heizungsanordnung1 heating arrangement
  • 2 PTC-Element2 PTC element
  • 3 L-förmiges Kontaktblech3 L-shaped contact plate
  • 4 Kontaktblech4 contact sheet
  • 5 Stecker5 plugs
  • 6 Wellrippe6 corrugated rib
  • 7 Kunststoff-Rahmen7 plastic frame
  • 7' Teil7 'part
  • 7" Teil7 "part
  • 8 Clips-Verbindung8 clips connection
  • 8' Schiebe-Verbindung8 'sliding connection
  • 9 Rippe9 rib
  • 10 Öffnung10 opening
  • 11 Vorsprung11 lead
  • 12 Vorsprung12 lead
  • 13 Lasche13 tab

Claims (17)

  1. A heating arrangement with PTC element, in particular for a motor vehicle, wherein corrugated ribs (6) for an improved heat transfer to an airflow flowing through the heating arrangement (1) are arranged around the PTC element (2), wherein the heating arrangement (1) has a plastics frame (7), which is formed in two parts, characterised in that the frame (7) has, on the inner side, ribs (9) running in the direction of the airflow.
  2. The heating arrangement according to claim 1, characterised in that the two parts (7' , 7") of the plastics frame (7) are interconnected by means of a clip connection (8) or a slide connection (8').
  3. The heating arrangement according to claim 1 or 2, characterised in that the plastics frame (7) has at least one opening (10) for two contact plates (3) and is formed as a plug (5) in the vicinity of the opening or the openings. (10).
  4. The heating arrangement according to claim 3, characterised in that the plug (5) is formed at a right angle to the contact plates (3) producing the electrical contact, wherein a cable and the plug (5) are oriented parallel to the direction of the airflow.
  5. The heating arrangement according to one of the preceding claims, characterised in that contact plates (3, 4) are attached on both sides of the PTC element (2).
  6. The heating arrangement according to one of the preceding claims, characterised in that the PTC element (2) is attached to a contact plate (3, 4) by means of an adhesively bonded connection.
  7. The heating arrangement according to one of the preceding claim, characterised in that a corrugated rib (6) is attached by means of an adhesive bond on the side of the contact plate (3, 4) facing away from the PTC element (2).
  8. The heating arrangement according to one of the preceding claims, characterised in that a further contact plate (4, 3) is attached to the corrugated rib (6) by means of an adhesive bond on the side of the corrugated rib (6) facing away from the PTC element (2).
  9. The heating arrangement according to one of the preceding claims, characterised in that two contact plates (3) are formed in such a way that they are formed at the end thereof as part of a plug (5).
  10. The heating arrangement according to claim 9, characterised in that the two contact plates (3) are L-straped.
  11. The heating arrangement according to one of the preceding claims, characterised in that the frame has a tab (13) for attaching the heating arrangement (1) in or to an air duct.
  12. The heating arrangement according to one of the preceding claims, characterised in that the heating arrangement is formed as a deceritral auxiliary heater, which is arranged in an air duct outside an air-conditioning unit.
  13. The heating arrangement according to one of claims 5, 7 or 8, characterised in that the adhesive bond is formed by a two-component Silicone adhesive.
  14. The heating arrangement according to one of the preceding claims, characterised in that the plastics frame (7) is manufactured from a temperature-resistant plastics material.
  15. The heating arrangement according to one of the preceding claims, characterised in that the plastics frame (7) forms an insulating wall or is provided with an insulation.
  16. The heating arrangement according to one of the preceding claims, characterised in that the heating arrangement (1) has PTC elements (2) with an operating temperature from 80°C to 120°C.
  17. The heating arrangement according to one of the preceding claims, characterised in that the heating arrangement is controlled by relays or controllers.
EP03292475.5A 2003-10-07 2003-10-07 Heating assembly with PTC elements, particularly for motor vehicles Expired - Lifetime EP1523226B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP03292475.5A EP1523226B1 (en) 2003-10-07 2003-10-07 Heating assembly with PTC elements, particularly for motor vehicles
US10/959,608 US7399948B2 (en) 2003-10-07 2004-10-07 PTC heating unit suitable for use in motor vehicles

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP03292475.5A EP1523226B1 (en) 2003-10-07 2003-10-07 Heating assembly with PTC elements, particularly for motor vehicles

Publications (2)

Publication Number Publication Date
EP1523226A1 EP1523226A1 (en) 2005-04-13
EP1523226B1 true EP1523226B1 (en) 2014-12-10

Family

ID=34307028

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03292475.5A Expired - Lifetime EP1523226B1 (en) 2003-10-07 2003-10-07 Heating assembly with PTC elements, particularly for motor vehicles

Country Status (2)

Country Link
US (1) US7399948B2 (en)
EP (1) EP1523226B1 (en)

Families Citing this family (15)

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Publication number Priority date Publication date Assignee Title
ES2303167T3 (en) * 2005-09-23 2008-08-01 CATEM GMBH & CO. KG HEAT GENERATING ELEMENT OF A HEATING DEVICE.
KR100771628B1 (en) * 2006-05-11 2007-10-31 엘지전자 주식회사 Electricity oven
DE102007023417A1 (en) * 2007-05-18 2008-11-20 Daimler Ag Heating device for condensate drain
DE502007005351D1 (en) * 2007-07-20 2010-11-25 Eberspaecher Catem Gmbh & Co K Electric heating device, in particular for motor vehicles
DE102009032621B4 (en) 2008-07-07 2022-04-07 Modine Korea, Llc PWM controlled high capacity PTC heater
EP2293648B1 (en) * 2009-09-02 2017-07-19 Mahle Behr France Rouffach S.A.S Heat exchanger
FR2958112B1 (en) * 2010-03-26 2013-04-26 Valeo Systemes Thermiques ELECTRICAL HEATING DEVICE COMPRISING AT LEAST ONE SELF-REGULATED HEATING WIRE
KR101219967B1 (en) * 2010-09-28 2013-01-08 현대자동차주식회사 Car heating system using PTC heater and method thereof
JP2012124222A (en) * 2010-12-06 2012-06-28 Mitsubishi Heavy Ind Ltd Heat medium heating apparatus
DE102012013770A1 (en) * 2012-07-11 2014-01-16 Eberspächer Catem Gmbh & Co. Kg Heat generating element
DE102012109801B4 (en) * 2012-10-15 2015-02-05 Borgwarner Ludwigsburg Gmbh Electric heater
US20150125134A1 (en) * 2013-11-01 2015-05-07 Jin Yih Shyang Enterprise Co., Ltd. Heat-resistant electric heater
CN104053255B (en) * 2014-06-06 2015-10-07 常熟市林芝电热器件有限公司 Ptc heater
CN106401822A (en) * 2016-11-07 2017-02-15 安徽兴宇轨道装备有限公司 Fixing device for PTC heater of diesel filter
DE102018200938A1 (en) 2018-01-22 2019-07-25 Ford Global Technologies, Llc Temperature control device, in particular for heating an interior of a vehicle and / or units of the vehicle

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DE10144757B4 (en) 2001-09-11 2006-03-30 Webasto Ag Additional heating for passenger vehicles
US5206476A (en) * 1991-09-30 1993-04-27 General Motors Corporation Supplementary automobile duct heater
US5192853A (en) * 1991-10-22 1993-03-09 Yeh Yuan Chang Heating set having positive temperatue coefficient thermistor elements adhesively connected to heat radiator devices
DE19706199B4 (en) 1997-02-18 2005-11-10 Behr Gmbh & Co. Kg Electric heating device, in particular for a motor vehicle
WO2001097411A1 (en) 2000-06-12 2001-12-20 Samsung Electronics Co., Ltd Method of assigning an uplink random access channel in a cdma mobile communication system
DE50001877D1 (en) 2000-08-25 2003-05-28 Catem Gmbh & Co Kg PTC heater with adhesive

Also Published As

Publication number Publication date
US20050133490A1 (en) 2005-06-23
US7399948B2 (en) 2008-07-15
EP1523226A1 (en) 2005-04-13

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