WO2003009645A1 - Dispositif de chauffage electrique, notamment pour une installation de chauffage de vehicule automobile - Google Patents
Dispositif de chauffage electrique, notamment pour une installation de chauffage de vehicule automobile Download PDFInfo
- Publication number
- WO2003009645A1 WO2003009645A1 PCT/FR2002/002374 FR0202374W WO03009645A1 WO 2003009645 A1 WO2003009645 A1 WO 2003009645A1 FR 0202374 W FR0202374 W FR 0202374W WO 03009645 A1 WO03009645 A1 WO 03009645A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- heating
- heating device
- bars
- heat dissipation
- dissipation plate
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B1/00—Details of electric heating devices
- H05B1/02—Automatic switching arrangements specially adapted to apparatus ; Control of heating devices
- H05B1/0227—Applications
- H05B1/023—Industrial applications
- H05B1/0236—Industrial applications for vehicles
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B3/00—Ohmic-resistance heating
- H05B3/20—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater
- H05B3/22—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater non-flexible
-
- 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
Definitions
- Electric heating device in particular for a motor vehicle heating installation.
- the invention relates to air heating installations, in particular for motor vehicles.
- the heating of the air intended for heating the passenger compartment of a motor vehicle with an internal combustion engine, as well as for demisting and defrosting, is ensured by heat exchange between an air flow and a engine coolant.
- Such a device generally uses resistive elements with a positive temperature coefficient (PTC). These elements, due to the strong increase in their electrical resistance from a temperature threshold (Curie point), give the heating device the ability to self-regulate as a function of the temperature, which avoids excessive heating. potentially dangerous.
- PTC resistors are usually in the form of blocks or stones which are arranged in bars. Each bar comprises a plurality of stones spaced from one another and fed in parallel between two electrodes. One of the electrodes may consist of a tube enclosing the bar, while the other electrode is in the form of a metal strip introduced into the bar and isolated from the wall of the tube.
- heating bars are arranged in a support frame and are in contact with radiant elements such as spacers arranged between the bars or fins which extend transversely with respect to the bars and are crossed by them.
- radiant elements such as spacers arranged between the bars or fins which extend transversely with respect to the bars and are crossed by them.
- the switching of the power supply of the bars is ensured by means of components such as power transistors, ( ⁇ ux these are provided with radiators exposed to the air flow passing through the ifis ositifrde heating.
- the aim of the invention is to simplify the production of a metric heating device having an integrated control electronics, in particular p-tr to reduce the cost thereof compared to the devices of the prior art.
- an electric heating device comprising m "plurality of heating bars each having reactive elements arranged in parallel between two electrical conductors lying along the bar, an electronic circuit with components ⁇ power for switching the power supply to bars ⁇ ; es means of dissipation of the heat produced by the components "placed on an air flow passing through the heating device, the electrical circuit with the power components being supported by a heat dissipation plate mounted directly on the heating bars, t at the end of these, each heating rod comprising m tube containing the resistive elements, the heat dissipation plate * being mounted at one end of the tubes of the ch j fe ⁇ ts bars, device in which the tube constitutes one of the letric conductors in contact with the resistive elements of the bar.
- the heat dissipation plate carrying the electronic circuit ègretégré in the heating device in the manner of a radiatsi ⁇ nté element on the heating bars.
- the electronic circuit is carried by a printed circuit plate supported by the heat dissipation plate. At least one of the electrical conductors extending along each bar passes through the heat dissipation plate and the printed circuit board to be connected thereto.
- FIG. 1 is a partial sectional view in elevation of an embodiment of a heating device according to the invention.
- FIG. 2 is a partial sectional view along the plane II-II of Figure 1;
- FIG. 3 is a detail view showing an alternative embodiment of the heating device of Figure 1; and - Figure 4 is an electrical diagram of the heating device of Figure 1.
- FIGS 1 and 2 schematically show a heating device according to the invention for example for an air heating installation for a motor vehicle.
- the heating device comprises several heating bars 10 (three are shown in FIG. 1, but their number may be greater).
- the heating bars are associated with radiant elements in the form of fins 12.
- the bars 10 extend transversely with respect to the fins 12 by being forcibly engaged in passages formed in the fins, so that good thermal contact is established between the bars 10 and the fins 12.
- the bars 10 and fins 12 are mounted inside a frame 14.
- the bars 10 each comprise a tube 100 of flattened shape in which are arranged resistive elements 102 spaced from one another along the tube 100.
- the resistive elements 102 for example PTC stones, are clamped between an internal wall of the tube 100 and an electrode 104 extending along the tube 100, inside the latter.
- the tube 100 is made of an electrically conductive metal, for example aluminum.
- the electrode 104 is in the form of a metal strip, for example also made of aluminum.
- An electrical insulator 106 is interposed between the electrode 104 and the internal wall of the tube 100 opposite to that in contact with the resistive elements 102.
- the electrical supply of the resistive elements of the bars 10 is ensured by means of an electronic circuit 20.
- This comprises a printed circuit board 200 mounted on a heat dissipation plate 202 with the interposition of an insulating layer 204.
- the layer 204 is made of an electrically insulating but heat conducting material in the form of a sheet, for example a paper loaded with glass.
- the printed circuit board 200 is fixed to the heat dissipation plate 202, for example by screw-nuts 203, or by bolting.
- the heat dissipation plate 202 for example made of alumina, is mounted on the ends of the bars 10.
- the plate 202 and the fins 12 are engaged at their ends in housings formed in opposite uprights of the frame 14.
- the plate 202 has passages 206 in which the ends of the tubes 100 are force fitted and / or fixed by screw-nuts.
- end portions 108 of the tubes 100 having passed through the passages 206 are cut and folded on the side of the plate 202 opposite to that where the bars 10 are located and are secured to the plate 202 for example by welding.
- the plate 202 is hollowed out around the passages 206 to accommodate the parts 108 of the tubes 100.
- This assembly can confer better resistance to vibrations at the connection between the bars 10 and the plate 202.
- a good electrical and thermal connection is established between the bars 10 and the plate 202. This is connected to a reference potential (mass or potential + V as supplied for example by a motor vehicle battery) to which the tubes 100 and the fins 12 are consequently carried.
- the electrodes 104 of the bars 10 are extended beyond the end of the latter connected to the plate 202 and pass through the passages 206 as well as passages formed through the insulating layer 204 as well as the printed circuit plate 200. ends 104a of the electrodes 104 protruding above the plate 200 are connected to the circuits thereof by welding, for example on connecting lugs 201.
- the plate 200 carries components 208 which ensure the switching of the electrical supply of the bars 10 by selectively connecting the electrodes 104 to a supply terminal (not shown) brought to a potential + V for example the positive potential provided by a motor vehicle battery.
- a protective cover 216 can cover the circuit 20 by being fixed on the plate 202.
- FIG. 4 shows the electrical circuit of the heater.
- the components 208 for example power transistors, are controlled by a control unit 210 to connect the electrodes 104 to the potential + v and supply the resistive elements 102.
- the control unit 210 comprises a microprocessor connected by a bus interface to a data bus 212. The latter receives, in a known manner, control signals produced by a central air conditioning control unit as a function of needs expressed or detected in electric heating. According to these needs, one or more heating bars are controlled.
- the heat produced by the electronic circuit 20, in particular the power transistors 208 is removed by the plate.
- the dissipation plate 202 is exposed to the air flow passing through the heating device (arrows F in FIG. 2). In this way, a contribution is made both to the desired reheating of this air flow and to the necessary cooling of the components 208.
- the bars 10 are devoid of resistive elements in the immediate vicinity of the ends connected to the plate 202 .
- Another advantage of the device described above lies in the simplicity and the minimum cost of the electrical connection between the bars 10 and the electronic circuit 20.
- the electrical supply conductors of the resistive elements of the bars may be constituted by two electrodes housed in the tubes 100 and passing through the heat dissipation plate 202, the insulator 204 and the printed circuit board 200 to be connected to it, for example in the same way as the electrode 104 of the embodiment of FIGS. 1 and 2.
Landscapes
- Air-Conditioning For Vehicles (AREA)
- Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP02762537.5A EP1405547B2 (fr) | 2001-07-09 | 2002-07-05 | Dispositif de chauffage electrique, notamment pour une installation de chauffage de vehicule automobile |
AT02762537T ATE430461T1 (de) | 2001-07-09 | 2002-07-05 | Elektrische heizeinrichtung, insbesondere für eine kraftfahrzeug-heizinstalltion |
DE60232148T DE60232148D1 (de) | 2001-07-09 | 2002-07-05 | Elektrische heizeinrichtung, insbesondere für eine kraftfahrzeug-heizinstalltion |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR01/09078 | 2001-07-09 | ||
FR0109078A FR2827113B1 (fr) | 2001-07-09 | 2001-07-09 | Dispositif de chauffage electrique, notamment pour une installation de chauffage de vehicule automobile |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2003009645A1 true WO2003009645A1 (fr) | 2003-01-30 |
Family
ID=8865273
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FR2002/002374 WO2003009645A1 (fr) | 2001-07-09 | 2002-07-05 | Dispositif de chauffage electrique, notamment pour une installation de chauffage de vehicule automobile |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP1405547B2 (fr) |
AT (1) | ATE430461T1 (fr) |
DE (1) | DE60232148D1 (fr) |
ES (1) | ES2324602T3 (fr) |
FR (1) | FR2827113B1 (fr) |
WO (1) | WO2003009645A1 (fr) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2859349B1 (fr) * | 2003-08-29 | 2006-12-01 | Valeo Climatisation | Element de chauffage electrique pour appareil de ventilation, de chauffage et/ou de climatisation d'habitacle |
EP1872986B1 (fr) * | 2006-06-28 | 2012-01-18 | Eberspächer catem GmbH & Co. KG | Chauffage électrique |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19911204A1 (de) * | 1999-03-13 | 2000-09-14 | Behr Gmbh & Co | Kühlvorrichtung für elektronische Bauelemente |
DE19925757A1 (de) * | 1999-06-05 | 2000-12-07 | Behr France Sarl | Heizeinrichtung, insbesondere für ein Kraftfahrzeug |
DE19957452A1 (de) * | 1999-11-19 | 2001-05-23 | Behr France Sarl | Elektrische Heizeinrichtung, insbesondere für ein Kraftfahrzeug |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE29719639U1 (de) † | 1997-11-05 | 1998-12-03 | Fritz Eichenauer Gmbh & Co Kg, 76870 Kandel | Vorrichtung zum Beheizen von Innenräumen, insbesondere von Kraftfahrzeugen |
DE10102671C2 (de) † | 2001-01-17 | 2003-12-24 | Eichenauer Heizelemente Gmbh | Elektrische Heizung für ein Kraftfahrzeug |
-
2001
- 2001-07-09 FR FR0109078A patent/FR2827113B1/fr not_active Expired - Fee Related
-
2002
- 2002-07-05 DE DE60232148T patent/DE60232148D1/de not_active Expired - Lifetime
- 2002-07-05 WO PCT/FR2002/002374 patent/WO2003009645A1/fr not_active Application Discontinuation
- 2002-07-05 ES ES02762537T patent/ES2324602T3/es not_active Expired - Lifetime
- 2002-07-05 AT AT02762537T patent/ATE430461T1/de not_active IP Right Cessation
- 2002-07-05 EP EP02762537.5A patent/EP1405547B2/fr not_active Expired - Lifetime
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19911204A1 (de) * | 1999-03-13 | 2000-09-14 | Behr Gmbh & Co | Kühlvorrichtung für elektronische Bauelemente |
DE19925757A1 (de) * | 1999-06-05 | 2000-12-07 | Behr France Sarl | Heizeinrichtung, insbesondere für ein Kraftfahrzeug |
DE19957452A1 (de) * | 1999-11-19 | 2001-05-23 | Behr France Sarl | Elektrische Heizeinrichtung, insbesondere für ein Kraftfahrzeug |
Also Published As
Publication number | Publication date |
---|---|
EP1405547B1 (fr) | 2009-04-29 |
EP1405547B8 (fr) | 2009-08-26 |
ES2324602T3 (es) | 2009-08-11 |
DE60232148D1 (de) | 2009-06-10 |
EP1405547A1 (fr) | 2004-04-07 |
ATE430461T1 (de) | 2009-05-15 |
FR2827113A1 (fr) | 2003-01-10 |
FR2827113B1 (fr) | 2003-10-17 |
EP1405547B2 (fr) | 2014-12-31 |
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