EP2282605A1 - Dispositif de chauffage - Google Patents

Dispositif de chauffage Download PDF

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Publication number
EP2282605A1
EP2282605A1 EP10006398A EP10006398A EP2282605A1 EP 2282605 A1 EP2282605 A1 EP 2282605A1 EP 10006398 A EP10006398 A EP 10006398A EP 10006398 A EP10006398 A EP 10006398A EP 2282605 A1 EP2282605 A1 EP 2282605A1
Authority
EP
European Patent Office
Prior art keywords
heating device
tubes
holder
contact plates
extruded profiles
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.)
Withdrawn
Application number
EP10006398A
Other languages
German (de)
English (en)
Inventor
Stephan Dick
Norbert Ernst
Jürgen Hetzler
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.)
BorgWarner Ludwigsburg GmbH
Original Assignee
BorgWarner Beru Systems GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by BorgWarner Beru Systems GmbH filed Critical BorgWarner Beru Systems GmbH
Publication of EP2282605A1 publication Critical patent/EP2282605A1/fr
Withdrawn legal-status Critical Current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
    • F24H3/06—Air heaters with forced circulation the air being kept separate from the heating medium, e.g. using forced circulation of air over radiators
    • F24H3/08—Air heaters with forced circulation the air being kept separate from the heating medium, e.g. using forced circulation of air over radiators by tubes
    • F24H3/081—Air heaters with forced circulation the air being kept separate from the heating medium, e.g. using forced circulation of air over radiators by tubes using electric energy supply
    • 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
    • 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
    • H05B3/40—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
    • H05B2203/022—Heaters specially adapted for heating gaseous material
    • H05B2203/023—Heaters of the type used for electrically heating the air blown in a vehicle compartment by the vehicle heating system

Definitions

  • the invention relates to a heating device with the features specified in the preamble of claim 1.
  • a heating device is from the DE 10 2006 018 784 B4 known.
  • an extruded profile is used, which has openings transverse to the extrusion direction, through which a fluid to be heated can flow.
  • a disadvantage of the known heating device that the openings must be generated by an additional step in an extruded profile. Object of the present invention is therefore to show a way how this effort can be avoided.
  • a plurality of extruded profiles are held side by side transversely to the flow direction of a holder.
  • a fluid to be heated can flow along the extruded profiles, so that no openings extending transversely to the extrusion direction are required.
  • a fluid to be heated preferably flows longitudinally along the tubes formed by the extruded profiles.
  • the extruded tubes are preferably in one piece, but may also be multi-part and be formed for example by a U- or C-profile and a closing cover strip.
  • At least one bus bar is preferably present, to which a plurality of contact plates are connected.
  • the busbar leads from the contact plates connected to it to a holder, of which the heating elements containing tubes are held.
  • a plurality of busbars are preferably present, each contacting contact plates which project at one end from tubes arranged in a row.
  • the busbar or the busbars may be formed, for example, as sheet-metal strips which are coated with plastic.
  • the holder carries a supply rail to which a plurality of busbars are connected. If a ground connection is realized via the pipes, a single supply rail is sufficient.
  • the heating elements are electrically insulated from the tubes and each lie between two contact plates. It is particularly preferred that these two contact plates protrude at opposite ends of the tubes.
  • the holder carries two supply rails, to each of which one half of the contact plates is connected. The two supply rails are preferably arranged at the same end of the heating device, for example attached to the same frame part.
  • the holder is designed as a frame which surrounds the tubes. It is preferred that the longitudinal direction of the tubes extends transversely to the frame plane.
  • each contact plate carries a mounting frame.
  • the in the FIGS. 1 to 5 shown heater is formed by a plurality of juxtaposed extrusion profiles 2, which are held by a frame formed as a holder.
  • the frame is assembled from four frame parts, namely an upper frame part 1a, a lower frame part 1b and two lateral frame parts 1c.
  • the juxtaposed in the frame transversely to the flow direction extruded profiles 2 have tubes 2a.
  • the tubes 2a of the various extruded profiles 2 are arranged in rows. In the embodiment shown, these rows run parallel to the lateral frame parts 1c.
  • each of the extruded profiles 2 five pipes 2a, in which in FIG. 7 shown heating elements 7 are arranged.
  • FIG. 7 shown heating elements 7 are arranged.
  • only one tube 2a of each extruded profile 2 can be seen, since the remaining tubes 2a are covered by busbars 3 which contact contact plates (not shown) protruding from the tubes 2a.
  • the heating elements 7 are arranged in the tubes 2a between two contact plates 8, which are electrically insulated from the tubes 2a and protrude at different ends of the tubes 2a. It is also possible, however, to contact the heating elements 7 only with a single contact plate 8 and to effect a ground connection via the extruded profiles 2a.
  • the busbars 3 may be formed as plastic-coated metal strip.
  • the metal strips are preferably encapsulated with the plastic jacket.
  • the plastic sheath can also be pushed onto the metal strip.
  • the plastic sheath of the contact rails may have openings in some places to allow easy contact with the projecting out of the tubes 2a contact plates.
  • the contact plates are preferably bent at their ends. For example, the contact plates with bent ends resiliently rest against the busbars. It is also possible to bend out of the busbars 3 tabs, which abut the contact plates.
  • the busbars 3 extend transversely to the opposite frame parts 1a, 1b and stuck in the illustrated embodiment in the frame parts 1a, 1b. In this way, the heater can be easily assembled. However, it is not absolutely necessary that the busbars 3 extend from a frame part 1a to an opposite frame part 1b. It is also possible that the busbars 3 terminate at a distance from the lower frame part 1b.
  • the busbars 3 are connected via the frame to the electrical system of a motor vehicle.
  • the busbars 3 protrude into the upper frame part 1a, which carries at least one supply rail 4, to which a plurality of busbars 3 are connected.
  • protrude from the tubes 2a at both ends contact plates 9, which are each contacted by busbars 3.
  • the two supply rails 4 preferably extend in the same frame part 1a, but can also be arranged on opposite ends of the heating device and thus in opposite frame parts.
  • the supply rails 4 may carry connection elements 4a which are formed, for example, as projections extending transversely to the supply rails 4.
  • the frame may have a printed circuit board 5, in particular on the frame part 1a carrying the supply rails 4.
  • the supply rails 4 may be formed as printed conductors on the circuit board 5 or, for example, as separate sheets, as is the case in the embodiment shown.
  • the circuit board 5 may carry one or more power semiconductors 6 for controlling the heater. In order to use the waste heat from power semiconductors 6 or other electronic components arranged on the printed circuit board 5, the printed circuit board 5 can carry a heat sink 6.
  • the extruded profiles 2 are attached to lateral frame parts 1 c, for example by plugging or hooking.
  • the lateral frame parts 1c, to which the extruded profiles 2 are fastened, preferably extend parallel to the busbars 3.
  • the frame carries eleven extruded profiles 2, each having five tubes 2a.
  • the number of tubes 2a per extruded profile 2 can be freely selected as well as the number of extruded profiles 2 within wide limits.
  • Favorable are generally two to five tubes per extruded profile and four to fifteen, in particular six to twelve juxtaposed extruded profiles.
  • the extruded profiles 2 preferably have heat release ribs 2b for improving the heat dissipation.
  • the heat release ribs 2b start from a base plate.
  • heat discharge ribs 2b extend on both sides of the base plate.
  • other tubes 2a which are not filled with heating elements 7, can be used.
  • extruded profiles 2 can be stacked and touching each other. However, adjacent extruded profiles 2 preferably do not touch one another, that is, they are arranged at a distance from one another, as shown in the figures. This has the advantage that any manufacturing tolerances of the extruded profiles 2 can be compensated by the distances provided between them.
  • heating elements 7 are preferably PTC heating elements, ie heating elements with a positive temperature coefficient, which rises sharply at a critical temperature used.
  • PTC heating elements ie heating elements with a positive temperature coefficient, which rises sharply at a critical temperature used.
  • ceramic heating elements for example based on barium titanate.
  • the heating elements 7 containing tubes 2a are preferably square tubes, as shown in the drawings. After the introduction of the PTC elements and the contact sheets 9, the tubes 2a can be pressed to improve the heat coupling. In order to facilitate the mounting of the heating elements 7 in the tubes 2a, it is advantageous to use mounting frame 13, which the heating elements 7 and hold the contact plates 9. Mounting frame 13 can be pushed onto contact plates 9, for example. It is also possible to spray mounting frame 13 around contact plates 9 around. The mounting frame 13 may in particular receptacles 14 for the heating elements 7 have.
  • FIG. 6 schematically another embodiment of a heating device according to the invention is shown. Similar to the embodiment described above, the heating device is formed by a plurality of transverse to the flow direction juxtaposed extrusion profiles 2, which are held by a holder 1a, 1c.
  • FIG. 6 indicated by arrows direction of flow of the fluid to be heated transverse to the longitudinal direction of the tubes 2a and thus extends transversely to the extrusion direction.
  • the interlocking heat discharge ribs 2b of the extruded profiles 2 in this case give a meandering flow profile.
  • the extruded profiles 2 are arranged side by side transversely to the flow direction.
  • FIG. 6 the heater is shown with a view perpendicular to the direction of flow and in the extrusion direction.
  • the busbars 3 and the bent ends of the contact plates 8 therefore cover the extruded profiles 2.
  • the busbars 3, the holder 1a and the contact plates 8 in FIG. 6 hatched or transparent, so that the underlying extruded profiles 2 are visible.
  • the busbars 3 are located in the support part 1a, which is arranged in the plane of the drawing.
  • the connection of the busbars 3 can be made directly or via a printed circuit board 5.
  • each extruded profile 2 has two tubes 2a. But are also possible more than two tubes 2a, or a different number of tubes 2a.
  • the embodiment shows the arrangement of the tubes 2a in uniform rows. But is also possible an offset arrangement of the tubes 2a of adjacent extruded profiles. 2
  • the attachment of the extruded profiles 2 on the support member 1c is preferably carried out by clamping.
  • holding elements of the holding part 1c clamp with ribs 2b of the extruded profiles 2.
  • Each tube 2a includes two identical contact plates 8, between which at least one block-shaped heater 7 is disposed from a PTC-ceramic (p ositiver T emperature ostory c).
  • the contact plates 8 each carry a mounting frame 13, which defines receptacles 14 for the heating elements 7.
  • the mounting frame 13 is preferably made of plastic and may be pushed onto the contact plates 8. However, the mounting frame 13 can also be sprayed around the contact plates 8 around.
  • the mounting frame 13 leaves in the illustrated embodiment, facing away from the heating elements 7 back of the contact plates 8 free.
  • the contact plates 8 carry on their side facing away from the heating elements 7 an electrically insulating support 15, in the illustrated embodiment, a strip of Kapton foil.
  • the connected to the busbars 3 ends 9 of the contact plates 8 are bent. These ends 9 can be fastened to the busbars 3, for example, by rivets or screws.
  • FIG. 7 shown construction can be used for both embodiments described above.

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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)
  • Resistance Heating (AREA)
  • Air-Conditioning For Vehicles (AREA)
EP10006398A 2009-08-01 2010-06-19 Dispositif de chauffage Withdrawn EP2282605A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102009035837A DE102009035837A1 (de) 2009-08-01 2009-08-01 Heizeinrichtung

Publications (1)

Publication Number Publication Date
EP2282605A1 true EP2282605A1 (fr) 2011-02-09

Family

ID=43031527

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10006398A Withdrawn EP2282605A1 (fr) 2009-08-01 2010-06-19 Dispositif de chauffage

Country Status (4)

Country Link
US (1) US20110052161A1 (fr)
EP (1) EP2282605A1 (fr)
KR (1) KR20110013248A (fr)
DE (1) DE102009035837A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011054406B4 (de) 2011-09-30 2013-05-23 Borgwarner Beru Systems Gmbh Elektrische Heizvorrichtung zum Beheizen von Flüssigkeiten
DE102012004594B4 (de) 2012-03-07 2016-09-15 Borgwarner Ludwigsburg Gmbh Elektrische Heizvorrichtung zum Beheizen von Flüssigkeiten
US8731386B2 (en) 2011-09-30 2014-05-20 Borgwarner Beru Systems Gmbh Electric heating device for heating fluids
EP3789692A1 (fr) * 2019-09-04 2021-03-10 Mahle International GmbH Élément de chauffage, ensemble de chauffage et véhicule à moteur

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0464955A1 (fr) * 1990-07-03 1992-01-08 Texas Instruments Incorporated Dispositif de chauffage d'air et assemblage de chauffage
DE4215498A1 (de) * 1992-05-12 1993-11-25 Tuerk & Hillinger Gmbh Elektrische Heizvorrichtung mit PTC-Elementen
EP1370117A2 (fr) * 2002-06-05 2003-12-10 CEBI S.p.A. Radiateur électrique avec éléments PTC, en particulier pour systèmes de ventilation de cabine d' automobile
EP1731852A1 (fr) * 2005-06-09 2006-12-13 CEBI S.p.A. Réchauffeur électrique pour système de ventilation d'automobile
US20060289475A1 (en) * 2005-06-16 2006-12-28 Chao-Nien Tung Electric heating device
DE102006018784B4 (de) 2005-12-20 2007-12-20 Beru Ag Elektrische Heizvorrichtung, insbesondere für Automobile

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10221967A1 (de) * 2002-05-17 2003-11-27 Behr Gmbh & Co Wärmetauscher, insbesondere für eine Heizungs- oder Klimaanlage eines Kraftfahrzeuges
JP4111070B2 (ja) * 2003-06-10 2008-07-02 株式会社デンソー 暖房用熱交換器および車両用空調装置
DE502005010004D1 (de) * 2005-04-21 2010-09-09 Behr Gmbh & Co Kg Elektrischer Zuheizer für eine Heizungs- oder Klimaanlage eines Kraftfahrzeugs
EP1790916B1 (fr) * 2005-11-23 2014-05-21 Eberspächer catem GmbH & Co. KG Dispositif de chauffage électrique avec un élément de tolérance et de chauffage à effet CTP
DE502006003843D1 (de) * 2006-11-30 2009-07-09 Eberspaecher Catem Gmbh & Co K Elektrische Heizvorrichtung

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0464955A1 (fr) * 1990-07-03 1992-01-08 Texas Instruments Incorporated Dispositif de chauffage d'air et assemblage de chauffage
DE4215498A1 (de) * 1992-05-12 1993-11-25 Tuerk & Hillinger Gmbh Elektrische Heizvorrichtung mit PTC-Elementen
EP1370117A2 (fr) * 2002-06-05 2003-12-10 CEBI S.p.A. Radiateur électrique avec éléments PTC, en particulier pour systèmes de ventilation de cabine d' automobile
EP1731852A1 (fr) * 2005-06-09 2006-12-13 CEBI S.p.A. Réchauffeur électrique pour système de ventilation d'automobile
US20060289475A1 (en) * 2005-06-16 2006-12-28 Chao-Nien Tung Electric heating device
DE102006018784B4 (de) 2005-12-20 2007-12-20 Beru Ag Elektrische Heizvorrichtung, insbesondere für Automobile

Also Published As

Publication number Publication date
US20110052161A1 (en) 2011-03-03
KR20110013248A (ko) 2011-02-09
DE102009035837A1 (de) 2011-02-03

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