EP0575649A1 - Radiator - Google Patents
Radiator Download PDFInfo
- Publication number
- EP0575649A1 EP0575649A1 EP92110544A EP92110544A EP0575649A1 EP 0575649 A1 EP0575649 A1 EP 0575649A1 EP 92110544 A EP92110544 A EP 92110544A EP 92110544 A EP92110544 A EP 92110544A EP 0575649 A1 EP0575649 A1 EP 0575649A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- spars
- radiator according
- heat
- elements
- bulges
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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Classifications
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- 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 resistor
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- 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
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- 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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
- F28F9/001—Casings in the form of plate-like arrangements; Frames enclosing a heat exchange core
Definitions
- the invention relates to a radiator according to the preamble of claim 1.
- a radiator is known from EP-A-0 350 528.
- the first spars of the holding frame each consist of an inner band in contact with the slats, a parallel, spaced-apart, rigid outer rail and a wave spring arranged in between, which is supported on the outer rail and the inner band against presses the reversal points of the adjacent slats.
- the invention has for its object to provide a radiator of the type mentioned, which ensures a sufficient and large area pressure of the fins on the heat-emitting elements and which is easy to set up and install.
- the invention differs from the above-mentioned prior art mainly by the novel design of the first spars. Instead of a three-part arrangement, the invention realizes a one-part arrangement for each respective spar, which eliminates two manufacturing processes and facilitates assembly. In addition, good dimensional contact and thus good heat extraction is achieved even with dimensional tolerances in the PTC elements.
- the stiffness of the bars can be increased by a suitable profile design, which provides that the outer legs of the bars are each bent inwards.
- a rail of substantially M-shaped cross section can be arranged in the open cross section of each of the first spars, which rail is riveted or welded to the outer legs of the spar on its outer legs. This rail gives the spar a particularly high degree of rigidity that resists deflection.
- the drawing shows a radiator from the side, where to see where electrical heating elements are, these are shown in section.
- the radiator consists of a holding frame 1 made of first, longitudinal bars 2 and second, transverse bars 3.
- the first and second bars 2 and 3 are connected to one another at their ends and thus span a plane.
- the electrical heating elements 4, which are preferably PTC elements, and the heat-conducting elements 5 form a multilayer structure, which is clamped between the two opposing first bars 2 of the frame 1.
- the pressure that presses the aforementioned elements together is applied by resilient bulges 6, which are formed on the first spars 2.
- the force caused by these bulges is absorbed by the second frame bars 3.
- the PTC elements 4 are each held in a plastic frame 7, which has a slightly smaller thickness than the PTC elements 4, and has windows or openings 8 in which the PTC elements 4 are held.
- the plastic frame 7 On its longitudinal edges, the plastic frame 7 has raised edges 9, which prevent the heating elements 5 and the plastic frame 7 from sliding against one another.
- the first, longitudinal spars 2 of the frame 1 consist of an essentially U-shaped rail made of a resilient material, the legs of which are flat, the outer legs 11 being bent inwards.
- the inwardly bent sections 12 of the outer legs 11 end tightly above a flat central leg 13.
- the inwardly bent sections 12 give the spar 2 great rigidity.
- the center leg 13 is extended at both ends (only one end is shown in FIG. 4) by a flag 10, from which a resilient tongue 14 is released, the free end of which points towards the spar 2.
- a cross-sectionally M-shaped rail 15 is inserted into the free interior of the cross-section U-shaped spar 2, the outer legs of which several points 16 are riveted or welded to the outer legs 11 of the spar 2. This construction also ensures a desired rigidity for the spar 2.
- FIG. 5 also shows two metal strips 31 which are welded to the outer leg 11 in the end region of the U-shaped spar 2. They extend to the corresponding outer legs of the other spar 2, which is not shown in FIG. 5, and they are welded to it under mechanical prestressing of the overall arrangement in order to absorb the spring forces produced by the bulges 6. The second spars 3 can then be pushed largely tension-free onto the arrangement held together by the sheet metal stiffeners.
- the flag 10 is inserted into a cavity in the adjacent second spar 3, and the free end of its tongue 14 is locked behind an extension 17 which is formed on a section of the second spar 3 that overlaps the flag 10.
- a nose 18 extends into the free space between the side legs of the first spar 2, which presses on the middle leg 13 and thus presses the bulges 6 onto the adjacent heat-conducting element 5.
- the nose 18 has on its underside a guide channel for the tongue 14 which merges into a ramp 20 which leads to the attachment 17.
- FIG. 7 shows the arrangement of FIGS. 1 and 6 from above in the assembled state. You can see the nose 18 on the second spar 3, which engages between the side legs 11 of the first spar 2 and thereby pushes the inner portions 12 away from it somewhat laterally and which presses on the center leg 13.
- Fig. 8 shows that the apexes at the reversal areas 21 of the slat band are as flat as possible.
- the apex area is designed to be slightly arched in order to ensure that the lamellar strip abuts against an adjacent sheet metal strip 23 under pressure.
- FIG. 9 shows a preferred embodiment of a heat-conducting element.
- This consists of two metal strips 23 and 24, which are each angled twice at one end and are arranged symmetrically with respect to one another, so that they enclose an approximately rectangular space in a plane-parallel area of the metal strips 23 and 24, in which there is a lamellar strip 26, which is carried out, for example, in the manner of FIG. 8.
- the two metal strips 23 and 24 are connected at their abutting sections with rivets or the like, which are symbolically represented here by 27. At one end, a terminal lug 28 is riveted at the same time.
- FIG. 10a and 10b show details of the riveting of the sheet metal strips 23 and 24 of the heat-conducting element according to FIG. 9. It can be seen in FIG. 10a that on one sheet metal strip 23 a rivet sleeve 29 is integrally formed by deep drawing, which has a suitable bore in the penetrates another sheet metal strip 24 and is jammed by widening its free end in the bore on the sheet metal strip 24. A comparable connection of the metal strips 23 and 24 is also provided on the other side, as shown in FIG.
- the contact terminal lug 28 being provided in a comparable manner with an integrally formed rivet sleeve 30 which is inserted through the rivet sleeve 29 and flanged at its end , in order to thus the terminal lug 28 on the Determine heat-conducting element and at the same time establish electrical contact.
- the sheet metal strips 23 and 24 can be slightly flanged up at their edge, as is shown by way of example in the sectional illustration in FIG. 11, in order to prevent the slat strip 26 from slipping sideways.
- the heat-conducting elements 5 are in direct contact with the electrical heating elements 4.
- the heat therefore runs from the electrical heating elements 4 through one of the sheet metal strips 23 and 24 to the adjacent lamella strip, which thus absorbs the heat and can release it into the surrounding air.
- two such heat-conducting elements 5 can be arranged between two adjacent levels of heating elements. Since the heat-conducting elements 5 contact the PTC elements 4 directly, they can be used for their power supply, for which purpose the connection lug 28 is provided. It can be seen in FIG. 1 that with the aid of two such heat-conducting elements 5 a group of heating elements 4 can be supplied with current.
- the connecting lugs 28 extend through openings 29 in the second spars 30, which are made of an electrically insulating material, in particular plastic material.
- the heating elements 5 can, as FIG. 9 clearly shows, be assembled into prefabricated units, and these units then only need to be stacked with the heating elements 4 held by the plastic frames 7 and each other and with the first bars 1, as shown in FIG. 1 shows, and then the side the second spars 3 are pushed from the side, their lugs 18 engaging in the spaces between the side legs 11 of the spars 2. It is understood that for this purpose the stack of spars, Heating elements and heat-conducting elements must be compressed so that the lugs 18 can be brought into position without difficulty. When pushed together, the tongues 14 lock behind the shoulders 17 in the bars 3 and secure the arrangement in its position. None needs to be soldered, riveted or screwed for assembly.
- FIGS. 12 and 13 Alternative embodiments for the first spars 2 are shown in FIGS. 12 and 13.
- Fig. 12 shows the formation of the side legs of the spars with an upper bead-shaped edge
- Fig. 13 shows an embodiment in which the inner portions 12 of the side legs 11 run approximately parallel to the outer portions of the side legs 11.
- Fig. 14 shows an M-shaped rail for use between the outer legs of the cross-sectionally U-shaped spars 2 according to the type of FIG. 5, wherein the connecting leg 32 between the two outer legs 33 of the rail 15 is largely flat and a longitudinal one in the middle Has bead 34.
- This rail 15 is also, as shown in FIG. 5, to be fixed to the associated spar 2 by means of welding spots 16.
- the lamellar strip 26 is insulated from the adjacent metal strips 23 (or 24) by an insulating film 35, for example made of Kapton.
- the plastic frame 7 holding the electrical heating elements 4 has very strongly raised edges which at least largely cover the edges of the metal strips 23 so that they form a protection against accidental contact, so that the radiator equipped in this way is touched with the hands can without touching live parts.
- 16 shows an embodiment of the invention in which the space between two adjacent metal strips 23 and 24 is filled on the outside by a casting compound 36, with which the electrical heating elements 4 are protected against environmental influences, in particular against splash water.
- Another modification possibility is to dispense with the metal strips 23 and 24 for holding the lamella strips 26. These then abut directly on the outer bumps 17 and, if necessary, on one another.
- the electrical heating elements can be contacted by means of separate sheet metal strips which are arranged between the lamella strips and the heating elements and are provided with connecting lugs which lead to the outside, comparable to the connecting lugs 28.
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- General Engineering & Computer Science (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Resistance Heating (AREA)
- Thermistors And Varistors (AREA)
- Direct Air Heating By Heater Or Combustion Gas (AREA)
- Details Of Heat-Exchange And Heat-Transfer (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
- Surgical Instruments (AREA)
Abstract
Description
Die Erfindung bezieht sich auf einen Radiator nach dem Oberbegriff des Anspruchs 1. Ein solcher Radiator ist aus der EP-A-0 350 528 bekannt.The invention relates to a radiator according to the preamble of
Bei dem bekannten Radiator bestehen die ersten Holme des Halterahmens jeweils aus einem mit den Lamellen in Berührung stehenden inneren Band, einer parallel im Abstand dazu verlaufenden, steifen äußeren Schiene und einer dazwischen angeordneten Wellenfeder, die sich an der äußeren Schiene abstützt und das innere Band gegen die Umkehrstellen der benachbarten Lamellen drückt.In the known radiator, the first spars of the holding frame each consist of an inner band in contact with the slats, a parallel, spaced-apart, rigid outer rail and a wave spring arranged in between, which is supported on the outer rail and the inner band against presses the reversal points of the adjacent slats.
Diese Konstruktion ist relativ aufwendig, wegen der Mehrteiligkeit der einzelnen Holme ist ihre Montage schwierig, und darüberhinaus ist der Wärmekontakt nicht optimal, da sich insbesondere bei Dickentoleranzen in den PTC'S an manchen Stellen kein guter Flächenkontakt einstellt.This construction is relatively complex, due to the multipart nature of the individual spars, it is difficult to assemble, and moreover the thermal contact is not optimal, since in certain places there is no good surface contact, particularly with thickness tolerances in the PTC'S.
Der Erfindung liegt die Aufgabe zugrunde, einen Radiator der eingangs genannten Art anzugeben, der einen ausreichenden und großflächigen Druck der Lamellen an den wärmeabgebenden Elementen sicherstellt und der einfach aufgebaut und montierbar ist.The invention has for its object to provide a radiator of the type mentioned, which ensures a sufficient and large area pressure of the fins on the heat-emitting elements and which is easy to set up and install.
Diese Aufgabe wird durch die im Anspruch 1 angegebene Erfindung gelöst. Vorteilhafte Ausgestaltungen der Erfindung sind Gegenstand der Unteransprüche.This object is achieved by the invention specified in
Die Erfindung unterscheidet sich vom obengenannten Stand der Technik hauptsächlich durch die neuartige Gestaltung der ersten Holme. Anstelle einer dreiteiligen Anordnung realisiert die Erfindung eine einteilige Anordnung für jeden betreffenden Holm, was zwei Fertigungsvorgänge entfallen läßt und die Montage erleichtert. Darüberhinaus wird auch bei Maßtoleranzen in den PTC-Elementen ein guter Flächenkontakt und damit eine gute Wärmeauskopplung erreicht.The invention differs from the above-mentioned prior art mainly by the novel design of the first spars. Instead of a three-part arrangement, the invention realizes a one-part arrangement for each respective spar, which eliminates two manufacturing processes and facilitates assembly. In addition, good dimensional contact and thus good heat extraction is achieved even with dimensional tolerances in the PTC elements.
Die Steifigkeit der Holme kann durch eine passende Profilgestaltung vergrößert werden, die vorsieht, daß die äußeren Schenkel der Holme jeweils nach innen umgebogen sind. Bei einer anderen Ausführungsform kann in den offenen Querschnitt jedes der ersten Holme eine Schiene von im wesentlichen M-förmigem Querschnitt angeordnet sein, die an ihren Außenschenkeln mit den Außenschenkeln des Holms vernietet oder verschweißt ist. Diese Schiene verleiht dem Holm ein besonders hohes Maß an Steifigkeit, die einer Durchbiegung widersteht.The stiffness of the bars can be increased by a suitable profile design, which provides that the outer legs of the bars are each bent inwards. In another embodiment, a rail of substantially M-shaped cross section can be arranged in the open cross section of each of the first spars, which rail is riveted or welded to the outer legs of the spar on its outer legs. This rail gives the spar a particularly high degree of rigidity that resists deflection.
Die Erfindung wird nachfolgend unter Bezugnahme auf in den Zeichnungen dargestellte Ausführungsformen näher erläutert.The invention is explained in more detail below with reference to embodiments shown in the drawings.
Es zeigt:
- Fig. 1
- einen Radiator nach der Erfindung von der Seite, teilweise geschnitten,
- Fig. 2
- den Radiator nach Fig. 1 von der Stirnseite,
- Fig. 3
- eine Draufsicht auf einen Kunststoffrahmen mit darin angeordneten PTC-Elementen,
- Fig. 4
- eine Teildarstellung eines ersten Holmes in einer ersten Ausführungsform,
- Fig. 5 eine Teildarstellung eines ersten Holmes gemäß einer zweiten Ausführungsform;
- Fig. 6 eine vergrößerte Schnittdarstellung des oberen Eckbereichs von Fig. 1;
- Fig. 7 eine Teildarstellung des Radiators nach Fig. 1 von oben;
- Fig. 8 eine Einzelheit bezüglich eines anderen Ausführungsbeispiels eines Lamellenbandes;
- Fig. 9 eine Ausführungsform eines Wärmeleitelements;
- Fig. 10a und 10b Details eines Wärmeleiters nach Fig. 9;
- Fig. 11 eine Querschnittsdarstellung eines Wärmeleitelements ähnlich Fig. 9;
- Fig. 12 eine Teildarstellung im Schnitt einer Ausführungsform einer Holmschiene, und
- Fig. 13 eine Teildarstellung im Schnitt einer weiteren Ausführungsform einer Holmschiene.
- Fig. 14 eine M-förmige Schiene nach Art von Fig.5;
- Fig. 15 ein Wärmeleitelement, und
- Fig. 16 eine Ausführungsform mit Vergußmasse.
- Fig. 1
- a radiator according to the invention, partially cut from the side,
- Fig. 2
- 1 from the front,
- Fig. 3
- 2 shows a plan view of a plastic frame with PTC elements arranged therein,
- Fig. 4
- 2 shows a partial illustration of a first spar in a first embodiment,
- 5 shows a partial illustration of a first spar according to a second embodiment;
- Fig. 6 is an enlarged sectional view of the upper corner area of Fig. 1;
- Fig. 7 is a partial view of the radiator of Fig. 1 from above;
- 8 shows a detail with respect to another exemplary embodiment of a lamellar belt;
- 9 shows an embodiment of a heat-conducting element;
- 10a and 10b details of a heat conductor according to FIG. 9;
- FIG. 11 shows a cross-sectional illustration of a heat-conducting element similar to FIG. 9;
- Fig. 12 is a partial view in section of an embodiment of a spar rail, and
- Fig. 13 is a partial representation in section of a further embodiment of a spar rail.
- 14 shows an M-shaped rail in the manner of FIG. 5;
- 15 shows a heat-conducting element, and
- Fig. 16 shows an embodiment with potting compound.
Die Zeichnung zeigt einen Radiator von der Seite, wobei zur Verdeutlichung, wo sich elektrische Heizelemente befinden, diese geschnitten dargestellt sind. Der Radiator besteht aus einem Halterahmen 1 aus ersten, längslaufenden Holmen 2 und zweiten, querlaufenden Holmen 3. Die ersten und zweiten Holme 2 und 3 sind an ihren Enden miteinander verbunden und spannen so eine Ebene auf. Parallel zu den ersten Rahmenholmen 2 und senkrecht zu der von dem Rahmen 1 aufgespannten Ebene verlaufen parallel zueinander mehrere Ebenen, in denen sich elektrische Heizelemente 4 befinden, die Wärme an benachbarte Wärmeleitelemente 5 abgeben, die später noch zu beschreiben sind. Die elektrischen Heizelemente 4, die vorzugsweise PTC-Elemente sind, und die Wärmeleitelemente 5 bilden einen mehrschichtigen Aufbau, der zwischen den beiden sich gegenüberstehenden ersten Holmen 2 des Rahmens 1 eingespannt ist. Der Druck, der die vorgenannten Elemente aufeinanderdrückt, wird von federnden Ausbauchungen 6 aufgebrachtt, die an den ersten Holmen 2 ausgebildet sind. Die von diesen Ausbauchungen hervorgerufene Kraft wird von den zweiten Rahmenholmen 3 aufgenommen.The drawing shows a radiator from the side, where to see where electrical heating elements are, these are shown in section. The radiator consists of a
Die PTC-Elemente 4 sind jeweils zu mehreren in einem Kunststoffrahmen 7 gehalten, der eine etwas geringere Dicke hat, als die PTC-Elemente 4, und der Fenster oder Durchbrüche 8 aufweist, in denen die PTC-Elemente 4 gehalten sind. An seinen Längsrändern weist der Kunststoffrahmen 7 erhöhte Ränder 9 auf, die ein gegenseitige Verrutschen von Heizelementen 5 und Kunststoffrahmen 7 verhindern.The
Die ersten, längslaufenden Holme 2 des Rahmens 1 bestehen gemäß Fig. 4 aus einer im wesentlichen U-förmigen Schiene aus einem federnden Material, deren Schenkel flach sind, wobei die Außenschenkel 11 nach innen umgebogen sind. Die nach innen gebogenen Abschnitte 12 der Außenschenkel 11 enden dicht über einem flachen Mittenschenkel 13. Die nach innen gebogenen Abschnitte 12 verleihen dem Holm 2 eine große Steifigkeit. Der Mittenschenkel 13 ist an beiden Enden (in Fig. 4 ist nur ein Ende dargestellt) durch eine Fahne 10 verlängert, aus der eine federnde Zunge 14 ausgeklinkt ist, deren freies Ende gegen den Holm 2 weist.4, the first,
Bei der Alternative nach Fig. 5 ist in den freien Innenraum des im Querschnitt U-förmigen Holms 2 eine im Querschnitt M-förmige Schiene 15 eingesetzt, deren Außenschenkel an mehreren Punkten 16 mit den Außenschenkeln 11 des Holms 2 vernietet oder verschweißt sind. Auch diese Konstruktion gewährleistet eine gewünschte Steifigkeit für den Holm 2.In the alternative according to FIG. 5, a cross-sectionally M-shaped
In Fig. 5 erkennt man ferner zwei Blechstreifen 31, die im Endbereich des U-förmigen Holms 2 an dessen Außenschenkel 11 angeschweißt sind. Sie erstrecken sich bis zu den entsprechenden Außenschenkeln des anderen Holms 2, der in Fig. 5 nicht dargestellt ist, und sie werden an diesen unter mechanischer Vorspannung der Gesamtanordnung angeschweißt, um die von den Ausbauchungen 6 hervorgebrachten Federkräfte aufzunehmen. Die zweiten Holme 3 lassen sich dann weitgehend spannungsfrei auf die von den Blechsteifen zusammengehaltene Anordnung aufschieben.5 also shows two
Wie Fig. 1 und in vergrößerter Schnittdarstellung Fig. 6 zeigen, ist die Fahne 10 in einen Hohlraum im benachbarten zweiten Holm 3 eingeschoben, und das freie Ende ihrer Zunge 14 ist hinter einem Ansatz 17 verrastet, der an einem Abschnitt des zweiten Holms 3 ausgebildet ist, der die Fahne 10 übergreift. Von diesem Abschnitt erstreckt sich eine Nase 18 in den freien Raum zwischen den Seitenschenkeln des ersten Holms 2, die auf dessen Mittenschenkel 13 drückt und somit die Ausbauchungen 6 auf das benachbarte Wärmeleitelement 5 drückt. Zum leichteren Zusammenbau weist die Nase 18 an ihrer Unterseite einen Führungskanal für die Zunge 14 auf, der in eine Rampe 20 übergeht, die zu dem Ansatz 17 führt.As shown in FIG. 1 and in an enlarged sectional view in FIG. 6, the
Fig. 7 zeigt die Anordnung nach den Fig. 1 und 6 von oben in montiertem Zustand. Man erkennt die Nase 18 an dem zweiten Holm 3, die zwischen die Seitenschenkel 11 des ersten Holms 2 greift und dabei die inneren Abschnitte 12 davon etwas seitlich wegdrückt und die auf den Mittenschenkel 13 drückt.Fig. 7 shows the arrangement of FIGS. 1 and 6 from above in the assembled state. You can see the
Die Einzelheit in Fig. 8 zeigt, daß die Scheitel an den Umkehrbereichen 21 des Lamellenbandes möglichst flach ausgeführt sind. Es kann hierzu günstig sein, wenn der Scheitelbereich geringfügig gewölbt gestaltet ist, um unter Druck eine satte Anlage des Lamellenbandes an einem benachbarten Blechband 23 zu gewahrleisten.The detail in Fig. 8 shows that the apexes at the
Fig. 9 zeigt eine bevorzugte Ausführungsform eines Wärmeleitelements. Dieses besteht aus zwei Blechbändern 23 und 24, die jeweils an einem Ende zweifach abgewinkelt sind und die punktsymmetrisch zueinander angeordnet sind, so daß sie in einem planparallelen Bereich der Blechbänder 23 und 24 einen etwa rechteckigen Zwischenraum umschließen, in welchem sich ein Lamellenband 26 befindet, das beispielsweise in der Art der Fig. 8 ausgeführt ist. Die beiden Blechbänder 23 und 24 sind an ihren aneinander anliegenden Abschnitten mit Nieten oder dergleichen verbunden, die hier symbolisch mit 27 dargestellt sind. Am einen Ende ist dabei zugleich eine Anschlußfahne 28 angenietet.9 shows a preferred embodiment of a heat-conducting element. This consists of two
Die Fig. 10a und 10b zeigen Einzelheiten der Vernietung der Blechbänder 23 und 24 des Wärmeleitelements nach Fig. 9. Man erkennt in Fig. 10a, daß an dem einen Blechband 23 eine Niethülse 29 durch Tiefziehen integral ausgebildet ist, die eine passende Bohrung in dem anderen Blechband 24 durchdringt und durch Aufweiten ihres freien Endes in der Bohrung an dem Blechband 24 verklemmt ist. Eine vergleichbare Verbindung der Blechbänder 23 und 24 ist auch an der anderen Seite vorgesehen, wie Fig. 10b zeigt, wobei in vergleichbarer Weise die Kontaktanschlußfahne 28 mit einer integral ausgebildeten Niethülse 30 versehen ist, die durch die Niethülse 29 gesteckt und an ihrem Ende umgebördelt ist, um somit die Anschlußfahne 28 an dem Wärmeleitelement festzulegen und zugleich elektrischen Kontakt herzustellen.10a and 10b show details of the riveting of the sheet metal strips 23 and 24 of the heat-conducting element according to FIG. 9. It can be seen in FIG. 10a that on one sheet metal strip 23 a
Die Blechbänder 23 und 24 können an ihrem Rand leicht hochgebördelt sein, wie die Schnittdarstellung von Fig. 11 beispielhaft zeigt, um eine seitliches Verrutschen des Lamellenbandes 26 zu verhindern.The sheet metal strips 23 and 24 can be slightly flanged up at their edge, as is shown by way of example in the sectional illustration in FIG. 11, in order to prevent the
Wie Fig. 1 zeigt, liegen die Wärmeleitelemente 5 unmittelbar an den elektrischen Heizelementen 4 an. Die Wärme verläuft daher von den elektrischen Heizelementen 4 durch eines der Blechbänder 23 und 24 zum benachbarten Lamellenband, das die Wärme somit aufnimmt und an die umgebende Luft abgeben kann. Zwischen zwei benachbarten Ebenen von Heizelementen können, wie Fig. 1 zeigt, zwei solcher Wärmeleitelemente 5 angeordnet sein. Da die Wärmeleitelemente 5 die PTC-Elemente 4 direkt kontaktieren, können sie für deren Stromversorgung herangezogen werden, wozu die genannte Anschlußfahne 28 vorgesehen ist. Man erkennt in Fig. 1, daß mit Hilfe zweier solcher Wärmeleitelemente 5 jeweils eine Gruppe von Heizelementen 4 mit Strom versorgt werden kann. Die Anschlußfahnen 28 erstrecken sich durch Durchbrüche 29 in den zweiten Holmen 30, die aus einem elektrisch isolierenden Material, insbesondere Kunststoffmaterial, hergestellt sind.As shown in FIG. 1, the heat-conducting
Die Heizelemente 5 können, wie Fig. 9 anschaulich zeigt, zu vorgefertigten Einheiten zusammengestellt werden, und diese Einheiten brauchen dann nur mehr mit den von den Kunststoffrahmen 7 gehaltenen Heizelementen 4 und gegenseitig sowie mit den ersten Holmen 1 gestapelt zu werden, wie es Fig. 1 zeigt, und anschließend werden von der Seite die seitlichen zweiten Holme 3 von der Seite aufgeschoben, wobei ihre Nasen 18 in die Zwischenräume zwischen den Seitenschenkeln 11 der Holme 2 greifen. Es versteht sich, daß zu diesem Zweck der Stapel aus Holmen, Heizelementen und Wäremleitelementen zusammengedrückt werden muß, damit die Nasen 18 unschwierig in Position gebracht werden können. Beim Zusammenschieben verrasten die Zungen 14 hinter den Ansätzen 17 in den Holmen 3 und sichern die Anordnung in ihrer Position. Es braucht somit zum Zusammenbau nichts gelötet, genietet oder geschraubt zu werden.The
Alternative Ausführungsformen für die ersten Holme 2 sind in den Fig. 12 und 13 dargestellt. Fig. 12 zeigt die Ausbildung der seitlichen Schenkel der Holme mit einem oberen wulstförmigen Rand, während Fig. 13 eine Ausführungsform zeigt, bei der die innenliegenden Abschnitte 12 der Seitenschenkel 11 etwa parallel zu den äußeren Abschnitten der Seitenschenkel 11 verlaufen.Alternative embodiments for the
Fig. 14 zeigt eine M-förmige Schiene zum Einsatz zwischen die Außenschenkel der im Querschnitt U-förmigen Holme 2 nach Art der Fig. 5, wobei der Verbindungsschenkel 32 zwischen den beiden Außenschenkeln 33 der Schiene 15 weitgehend flach ist und in der Mitte eine längslaufende Sicke 34 aufweist. Diese Schiene 15 ist ebenfalls, wie in Fig. 5 dargestellt, mittels Schweißpunkten 16 an dem zugehörigen Holm 2 festzulegen.Fig. 14 shows an M-shaped rail for use between the outer legs of the cross-sectionally
Fig. 15 beschreibt eine Ausführungsform eines Wärmeleitelements, bei dem das Lamellenband 26 gegenüber den benachbarten Blechbändern 23 (bzw. 24) durch eine Isolierfolie 35, beispielsweise aus Kapton isoliert ist. Der die elektrischen Heizelemente 4 haltende Kunststoffrahmen 7 weist sehr stark erhöhte Ränder auf, die die Ränder der Blechbänder 23 zumindest weitestgehend so weit überdecken, daß sie einen Berührungsschutz bilden, so daß der in dieser Weise ausgerüstete Radiator mit den Händen berührt werden kann, ohne daß man mit spannungsführenden Teilen in Berührun gelangt.15 describes an embodiment of a heat-conducting element in which the
Fig. 16 zeigt eine Ausführungsform der Erfindung, bei der der Zwischenraum zwischen zwei benachbarten Blechbändern 23 und 24 außen von einer Vergußmasse 36 ausgefüllt ist, womit die elektrischen Heizelemente 4 gegen Umwelteinflüsse, insbesondere gegen Spritzwasser, geschützt sind.16 shows an embodiment of the invention in which the space between two adjacent metal strips 23 and 24 is filled on the outside by a casting
Eine weitere Modifikationsmöglichkeit besteht darin, auf die Blechbänder 23 und 24 zum Halten der Lamellenbänder 26 zu verzichten. Diese stoßen dann direkt an die Aubauchungen 17 und gegebenenfalls aneinander an. Die Kontaktierung der elektrischen Heizelemente kann in diesem Falle über gesonderte Blechbänder erfolgen, die zwischen den Lamellenbändern und den Heizelementen angeordnet sind und mit nach außen geführten Anschlußfahnen versehen sind, vergleichbar den Anschlußfahnen 28.Another modification possibility is to dispense with the metal strips 23 and 24 for holding the lamella strips 26. These then abut directly on the
Claims (18)
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP92110544A EP0575649B1 (en) | 1992-06-23 | 1992-06-23 | Radiator |
| AT92110544T ATE145981T1 (en) | 1992-06-23 | 1992-06-23 | RADIATOR |
| ES92110544T ES2098394T3 (en) | 1992-06-23 | 1992-06-23 | RADIATOR. |
| DE59207626T DE59207626D1 (en) | 1992-06-23 | 1992-06-23 | radiator |
| JP16381693A JP3274234B2 (en) | 1992-06-23 | 1993-06-10 | Radiator |
| US08/349,457 US5562844A (en) | 1992-06-23 | 1994-12-05 | Ptc heater radiator with frame members applying pressure to heaters |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP92110544A EP0575649B1 (en) | 1992-06-23 | 1992-06-23 | Radiator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0575649A1 true EP0575649A1 (en) | 1993-12-29 |
| EP0575649B1 EP0575649B1 (en) | 1996-12-04 |
Family
ID=8209738
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP92110544A Expired - Lifetime EP0575649B1 (en) | 1992-06-23 | 1992-06-23 | Radiator |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US5562844A (en) |
| EP (1) | EP0575649B1 (en) |
| JP (1) | JP3274234B2 (en) |
| AT (1) | ATE145981T1 (en) |
| DE (1) | DE59207626D1 (en) |
| ES (1) | ES2098394T3 (en) |
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| EP0616486A1 (en) * | 1993-03-17 | 1994-09-21 | Texas Instruments Incorporated | Heater apparatus and process for heating a fluid stream |
| EP1061776A1 (en) | 1999-06-15 | 2000-12-20 | David & Baader DBK Spezialfabrik elektrischer Apparate und Heizwiderstände GmbH | Heating device specially made for heating air |
| EP1164264A1 (en) * | 2000-06-14 | 2001-12-19 | DBK David + Baader GmbH | Blowby heater |
| EP1574803A2 (en) | 2004-02-27 | 2005-09-14 | Marin Camara, Miguel | Modular electric radiator |
| WO2008032662A1 (en) | 2006-09-13 | 2008-03-20 | Calsonic Kansei Corporation | Electric heater and its manufacturing method |
| DE102006053525B3 (en) * | 2006-11-07 | 2008-05-08 | Evo Elektroheizungen Gmbh | Electric heater for e.g. tram, has brackets comprising fixing region and holding region, and lamellas inserted into retaining recesses using plug connectors, fixed to brackets and held at retaining device |
| US7482557B2 (en) | 2002-01-15 | 2009-01-27 | Dbk David + Baader Gmbh | Lamella type radiator element having foldable projections and a notch |
| EP2211590A1 (en) * | 2009-01-23 | 2010-07-28 | Behr GmbH & Co. KG | Heat exchanger |
| EP2276321A1 (en) * | 2009-07-17 | 2011-01-19 | Behr France Rouffach SAS | Heat exchanger |
| EP2602567A1 (en) * | 2011-12-05 | 2013-06-12 | Behr France Rouffach S.A.R.L. | Electric heating device |
| FR3032388A1 (en) * | 2015-02-10 | 2016-08-12 | Valeo Systemes Thermiques | ELECTRICAL HEATING DEVICE |
| FR3032389A1 (en) * | 2015-02-10 | 2016-08-12 | Valeo Systemes Thermiques | ELECTRICAL HEATING DEVICE |
| WO2017085269A1 (en) * | 2015-11-20 | 2017-05-26 | Dbk David + Baader Gmbh | Radiator arrangement for an electric heater, and electric heater |
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| IL121449A0 (en) * | 1997-08-01 | 1998-02-08 | Body Heat Ltd | Adhesive composition for electrical PTC heating device |
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| FR2855933B1 (en) * | 2003-06-06 | 2006-06-09 | Valeo Climatisation | ELECTRIC HEATING DEVICE, IN PARTICULAR FOR A MOTOR VEHICLE |
| JP2005001447A (en) * | 2003-06-10 | 2005-01-06 | Denso Corp | Electric heater, heat exchanger for heating and vehicular air conditioner |
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| KR100445723B1 (en) * | 2003-11-18 | 2004-08-26 | 우리산업 주식회사 | PTC Element Module and Pre-Heater for Vehicles Including the Same |
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| EP1933598B1 (en) | 2006-12-11 | 2013-11-13 | Behr GmbH & Co. KG | Electrical heater or supplementary heater, in particular for a heating or air conditioning assembly of a vehicle |
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| DE502007005351D1 (en) * | 2007-07-20 | 2010-11-25 | Eberspaecher Catem Gmbh & Co K | Electric heating device, in particular for motor vehicles |
| EP2466222B1 (en) * | 2010-12-20 | 2013-06-05 | Eberspächer catem GmbH & Co. KG | Electric heating device |
| JP2013180690A (en) * | 2012-03-02 | 2013-09-12 | Mitsubishi Heavy Ind Ltd | Heat medium heating device and vehicle air conditioner including the same |
| EP2637475B9 (en) * | 2012-03-08 | 2017-01-25 | Eberspächer catem GmbH & Co. KG | Heat generating element |
| US9839072B2 (en) | 2012-03-08 | 2017-12-05 | Eberspacher Catem Gmbh & Co. Kg | Heat generating element with connection structure |
| EP2636981A1 (en) | 2012-03-09 | 2013-09-11 | DBK David + Baader GmbH | Heating device, lamella element for a heating device, and method for manufacturing a lamella element |
| DE102012106157A1 (en) | 2012-07-09 | 2014-01-09 | Dbk David + Baader Gmbh | Disk element for use in heating device for air heating in motor vehicle, has lamellas arranged one behind other, where two of lamellas comprise planar contact section over which lamellas are attached to another two lamellas |
| DE102012109801B4 (en) * | 2012-10-15 | 2015-02-05 | Borgwarner Ludwigsburg Gmbh | Electric heater |
| US20140124494A1 (en) * | 2012-11-05 | 2014-05-08 | Betacera Inc. | Car interior compartment heater |
| JP2014225348A (en) * | 2013-05-15 | 2014-12-04 | 三菱重工オートモーティブサーマルシステムズ株式会社 | Heat medium heating device, method of manufacturing the same, and vehicular air conditioner |
| JP2015058824A (en) * | 2013-09-19 | 2015-03-30 | 三菱重工オートモーティブサーマルシステムズ株式会社 | Flat heat exchange tube, and heat medium heating device and air conditioner for vehicle using the tube |
| DE102013111987B4 (en) * | 2013-10-30 | 2016-02-04 | Borgwarner Ludwigsburg Gmbh | Method for producing an electrical heating device and heating device |
| EP3319399A4 (en) * | 2015-06-30 | 2018-07-25 | Calsonic Kansei Corporation | Fluid heating device |
| DE102016224296A1 (en) * | 2016-12-06 | 2018-06-07 | Eberspächer Catem Gmbh & Co. Kg | ELECTRIC HEATING DEVICE |
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| EP0443618A2 (en) * | 1990-02-22 | 1991-08-28 | Murata Manufacturing Co., Ltd. | Method for producing a PTC thermistor |
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| US5187349A (en) * | 1990-08-22 | 1993-02-16 | Texas Instruments Incorporated | Defrost and passenger compartment heater system |
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| US5471034A (en) * | 1993-03-17 | 1995-11-28 | Texas Instruments Incorporated | Heater apparatus and process for heating a fluid stream with PTC heating elements electrically connected in series |
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1992
- 1992-06-23 EP EP92110544A patent/EP0575649B1/en not_active Expired - Lifetime
- 1992-06-23 ES ES92110544T patent/ES2098394T3/en not_active Expired - Lifetime
- 1992-06-23 AT AT92110544T patent/ATE145981T1/en active
- 1992-06-23 DE DE59207626T patent/DE59207626D1/en not_active Expired - Lifetime
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1993
- 1993-06-10 JP JP16381693A patent/JP3274234B2/en not_active Expired - Lifetime
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| EP0350528A1 (en) * | 1988-07-15 | 1990-01-17 | David & Baader DBK Spezialfabrik elektrischer Apparate und Heizwiderstände GmbH | Radiator |
| EP0443618A2 (en) * | 1990-02-22 | 1991-08-28 | Murata Manufacturing Co., Ltd. | Method for producing a PTC thermistor |
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Cited By (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0616486A1 (en) * | 1993-03-17 | 1994-09-21 | Texas Instruments Incorporated | Heater apparatus and process for heating a fluid stream |
| US5471034A (en) * | 1993-03-17 | 1995-11-28 | Texas Instruments Incorporated | Heater apparatus and process for heating a fluid stream with PTC heating elements electrically connected in series |
| EP1061776A1 (en) | 1999-06-15 | 2000-12-20 | David & Baader DBK Spezialfabrik elektrischer Apparate und Heizwiderstände GmbH | Heating device specially made for heating air |
| US6472645B1 (en) | 1999-06-15 | 2002-10-29 | David & Baader Spezialfabrik Elekrischer Apparate Und Heizwiderstande Gmbh | Air heating device |
| EP1164264A1 (en) * | 2000-06-14 | 2001-12-19 | DBK David + Baader GmbH | Blowby heater |
| US7482557B2 (en) | 2002-01-15 | 2009-01-27 | Dbk David + Baader Gmbh | Lamella type radiator element having foldable projections and a notch |
| EP1574803A2 (en) | 2004-02-27 | 2005-09-14 | Marin Camara, Miguel | Modular electric radiator |
| WO2008032662A1 (en) | 2006-09-13 | 2008-03-20 | Calsonic Kansei Corporation | Electric heater and its manufacturing method |
| DE102006053525B3 (en) * | 2006-11-07 | 2008-05-08 | Evo Elektroheizungen Gmbh | Electric heater for e.g. tram, has brackets comprising fixing region and holding region, and lamellas inserted into retaining recesses using plug connectors, fixed to brackets and held at retaining device |
| EP2211589A1 (en) * | 2009-01-23 | 2010-07-28 | Behr GmbH & Co. KG | Heat exchanger |
| EP2211590A1 (en) * | 2009-01-23 | 2010-07-28 | Behr GmbH & Co. KG | Heat exchanger |
| CN101949584A (en) * | 2009-01-23 | 2011-01-19 | 贝洱两合公司 | Heat exchanger |
| CN101949584B (en) * | 2009-01-23 | 2014-12-10 | 贝洱两合公司 | Heat exchanger |
| EP2276321A1 (en) * | 2009-07-17 | 2011-01-19 | Behr France Rouffach SAS | Heat exchanger |
| EP2276321B1 (en) | 2009-07-17 | 2017-04-05 | Mahle Behr France Rouffach S.A.S | Heat exchanger |
| EP2602567A1 (en) * | 2011-12-05 | 2013-06-12 | Behr France Rouffach S.A.R.L. | Electric heating device |
| FR3032388A1 (en) * | 2015-02-10 | 2016-08-12 | Valeo Systemes Thermiques | ELECTRICAL HEATING DEVICE |
| FR3032389A1 (en) * | 2015-02-10 | 2016-08-12 | Valeo Systemes Thermiques | ELECTRICAL HEATING DEVICE |
| WO2016128398A1 (en) * | 2015-02-10 | 2016-08-18 | Valeo Systemes Thermiques | Electric heating device |
| WO2016128399A1 (en) * | 2015-02-10 | 2016-08-18 | Valeo Systemes Thermiques | Electric heating device |
| DE112016000688B4 (en) | 2015-02-10 | 2022-10-06 | Valeo Systemes Thermiques | Electric heater |
| WO2017085269A1 (en) * | 2015-11-20 | 2017-05-26 | Dbk David + Baader Gmbh | Radiator arrangement for an electric heater, and electric heater |
Also Published As
| Publication number | Publication date |
|---|---|
| DE59207626D1 (en) | 1997-01-16 |
| JP3274234B2 (en) | 2002-04-15 |
| ATE145981T1 (en) | 1996-12-15 |
| EP0575649B1 (en) | 1996-12-04 |
| JPH0719781A (en) | 1995-01-20 |
| US5562844A (en) | 1996-10-08 |
| ES2098394T3 (en) | 1997-05-01 |
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