EP1429084A1 - Radiateur avec élément chauffant électrique supplémentaire - Google Patents

Radiateur avec élément chauffant électrique supplémentaire Download PDF

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Publication number
EP1429084A1
EP1429084A1 EP02293059A EP02293059A EP1429084A1 EP 1429084 A1 EP1429084 A1 EP 1429084A1 EP 02293059 A EP02293059 A EP 02293059A EP 02293059 A EP02293059 A EP 02293059A EP 1429084 A1 EP1429084 A1 EP 1429084A1
Authority
EP
European Patent Office
Prior art keywords
heating
tubes
radiator
ribs
heating elements
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Withdrawn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
EP02293059A
Other languages
German (de)
English (en)
Inventor
Micher Brun
Christophe Schmittheisler
Pascal Miss
Gregory Lucas
Yannick Laumonnerie
Mathieu Mougey
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.)
Mahle Behr France Rouffach SAS
Original Assignee
Behr France Hambach SARL
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 Behr France Hambach SARL filed Critical Behr France Hambach SARL
Priority to EP02293059A priority Critical patent/EP1429084A1/fr
Publication of EP1429084A1 publication Critical patent/EP1429084A1/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Withdrawn legal-status Critical Current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
    • F24H3/04—Air heaters with forced circulation the air being in direct contact with the heating medium, e.g. electric heating element
    • F24H3/0405—Air heaters with forced circulation the air being in direct contact with the heating medium, e.g. electric heating element using electric energy supply, e.g. the heating medium being a resistive element; Heating by direct contact, i.e. with resistive elements, electrodes and fins being bonded together without additional element in-between
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H3/00—Air heaters
    • F24H3/02—Air heaters with forced circulation
    • F24H3/04—Air heaters with forced circulation the air being in direct contact with the heating medium, e.g. electric heating element
    • F24H3/0405—Air heaters with forced circulation the air being in direct contact with the heating medium, e.g. electric heating element using electric energy supply, e.g. the heating medium being a resistive element; Heating by direct contact, i.e. with resistive elements, electrodes and fins being bonded together without additional element in-between
    • F24H3/0429—For vehicles
    • F24H3/0435—Structures comprising heat spreading elements in the form of fins
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F1/00—Tubular elements; Assemblies of tubular elements
    • F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
    • F28F1/12—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element
    • F28F1/24—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending transversely
    • F28F1/32—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending transversely the means having portions engaging further tubular elements
    • F28F1/325—Fins with openings

Definitions

  • the invention relates to a radiator for motor vehicle heating or Air conditioners with integrated electric auxiliary heating after the The preamble of claim 1, known from EP-B 0 707 434.
  • a brazed flat tube system is relatively expensive to manufacture connected, but also a mechanically joined flat tube system is in In view of the manufacturing process problematic, since flat-oval Tubes, on the one hand, have a good heat-conducting contact with the ribs have and on the other hand have to be close to the tube sheet, not expand evenly. Thus, the mechanical joining of flat oval tubes with ribs and tubesheets are costly.
  • the round tubes and the round heating cartridges mechanically with the ribs to a block connected are therefore preferably opposite to passages in widened the ribs;
  • the round cartridges are also by a Press fit connected to the ribs, allowing a good heat conduction results.
  • the heating cartridges from a metallic shell, preferably from an aluminum alloy surrounded, whereby the heat conduction is still improved.
  • the Round tubes and the heating cartridges each arranged in rows, with a Heating cartridge with a round tube aligned or staggered can. It is particularly advantageous if the row with the heating cartridges on the air outlet side of the radiator is arranged, as a result optimum heating of the air, that is, a maximum Zuloom Sign achieved becomes. On the other hand, it may also be beneficial to the series of heating cartridges on the air intake side or between two rows of round tubes to arrange.
  • the invention are in the round Cartridge heaters arranged PTC elements that are electrically conductive with each other are connected and powered by the electrical system.
  • the advantage here is the Temperature-dependent self-regulation of the PTC resistors.
  • the radiator in mechanically joined round tube construction can be produced inexpensively can and secondly that an electric booster heater so far special can be inexpensively integrated into this round tube heater than just the hole pattern of the ribs around a row for the also round Cartridge heaters is extended, that is, there are no additional Punching tools required.
  • the assembly of the Heating cartridges so far simple and therefore inexpensive, because they are right after the expansion of the round tubes against the ribs, that is after the Production of the heat exchanger block can be done.
  • Fig. 1 shows a heating element as a heating element 1, which is designed as a round rod, that is with a circular cross-section.
  • the heating cartridge 1 has a metallic shell 2, which is preferably made of an aluminum alloy. Inside the shell 2 are - shown in dashed lines - plate-shaped heating elements, that is preferably PTC elements 3 are arranged and electrically connected in a manner not shown by a plus and minus conductors.
  • the jacket 2 is closed at the top by a circular end face 4, from which two contact tongues 5, 6 emerge, which are connected to the plus or minus conductors inside the heating cartridge 1.
  • Fig. 2 shows an alternative to Fig. 1, namely a round heating cartridge 7 with a circular end face 8, from which a contact tongue 9 emerges. Inside the heating element 7 are again formed as PTC plates 3 heating elements. The positive conductor, not shown, connected to these PTC elements 3 is connected to the contact tongue 9. The negative conductor, also not shown, connected to the PTC elements 3 is connected to the metallic shell 2, which thus forms the negative pole 10 of the heating element 7.
  • FIG. 3 shows an incompletely illustrated radiator 11 with a tube / fin or heat exchanger block 12, which is closed on its underside by a bottom plate 13.
  • This heat exchanger block 12 is constructed in a conventional manner from round tubes and flat ribs, wherein the tubes are inserted through openings in the ribs and expanded relative to the ribs.
  • the tubes are formed as U-tubes 14, which emerge with their Umlenkbögen 14 a from the bottom plate 13.
  • the U-tubes or pipe forks 14 thus form two rows of tubes, which are flowed through by coolant.
  • a third row of tubes is formed by heating cartridges 15, which are formed according to FIG. 1 and protrude from the bottom plate 13 with the end at which the contact tongues are located.
  • the contact tongues which are not recognizable here, are covered by a contact rail 16, which functions as a hunt group for the entire row of heating cartridges 15.
  • This hunt group 16 can either be bipolar - as in the embodiment of FIG. 1 - or single pole - according to embodiment of FIG. 2 - in this case, the negative terminal would be connected via the ribs of the heat exchanger block with the mass of the motor vehicle, which is not shown ,
  • Fig. 4 shows a cross section through a double row radiator whose heat exchanger block consists of flat ribs 17, a first row of round tubes 18 and a second row of round heating rods or heating cartridges 19, wherein the circular cross sections of the round tubes and the heating cartridges are the same.
  • the round tubes 18, through which the coolant flows are connected to the ribs 17 by mechanical expansion, so that a press fit results.
  • the radiator block is traversed by air in the direction of an arrow 20, that is, the air strikes first on the round tubes 18 and then on the here offset heating cartridges 19.
  • This arrangement of the heating cartridges 19 on the air outlet side has a better heating of the air result, as the heated air passes directly into the vehicle interior, not shown, where it causes heating.
  • Other constellations with several rows of round tubes, aligned round tubes and heating cartridges or an arrangement of the heating cartridges on the air inlet side or between two rows of round tubes are also possible.
  • Fig. 4a shows a section along the section line AA in Fig. 4.
  • the heating cartridge 19 is mechanically connected to the rib block consisting of a plurality of ribs 17, that is, it sits with a corresponding interference fit in openings of the ribs 17, so that a good thermal contact results and the heat generated by the heating cartridges 19 can flow through the jacket into the ribs 17.
  • FIG. 4b shows a cross section through a further embodiment of a double-row radiator whose ribs have slots 101, wherein the slots 101 thermally decouple the round tubes 18 from the heating cartridges 19, whereby a temperature difference arises between the coolant tubes 18 and the heating cartridges 19.
  • the heating cartridges mainly heat the air for the vehicle interior and not the coolant in the coolant tubes 18th
  • Fig. 4c shows a section along the section line BB in Fig. 4b.
  • FIG. 5 shows a three-row radiator block in cross-section with a rib 21, a first row of round tubes 22, a second row of heating cartridges 23 and a third row of round tubes 24, the air flow direction being indicated by an arrow 25.
  • This configuration has the advantage that the expansion of the round tubes 22 and 24, that is, the two outer rows results in a solid heat exchanger block, in which then the heating cartridges 23 are used in the middle. So this block has a greater stability and can be easier to assemble or paste.
  • Fig. 6 shows a view of a radiator block 26 having a first row of round tubes 27 and a second row of dashed heating cartridges 28.
  • the end faces of the heating cartridges 28 are covered by a box-shaped collecting port 29, the electric heating cartridges 28 in a manner not shown here interconnected and having an outer plug 30 for the power supply.
  • the collecting port 29 is connected via two clips 31, 32 with the radiator. This results in a ready-to-install unit of a round tubular heater 26 with electric auxiliary heater.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Geometry (AREA)
  • Air-Conditioning For Vehicles (AREA)
EP02293059A 2002-12-10 2002-12-10 Radiateur avec élément chauffant électrique supplémentaire Withdrawn EP1429084A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP02293059A EP1429084A1 (fr) 2002-12-10 2002-12-10 Radiateur avec élément chauffant électrique supplémentaire

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP02293059A EP1429084A1 (fr) 2002-12-10 2002-12-10 Radiateur avec élément chauffant électrique supplémentaire

Publications (1)

Publication Number Publication Date
EP1429084A1 true EP1429084A1 (fr) 2004-06-16

Family

ID=32319689

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EP02293059A Withdrawn EP1429084A1 (fr) 2002-12-10 2002-12-10 Radiateur avec élément chauffant électrique supplémentaire

Country Status (1)

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EP (1) EP1429084A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2884763A1 (fr) * 2005-04-26 2006-10-27 Valeo Systemes Thermiques Dispositif de chauffage pour installation de chauffage, de ventilation et/ou de climatisation d'un habitacle de vehicule automobile
WO2016066601A1 (fr) * 2014-10-31 2016-05-06 Webasto SE Échangeur thermique et dispositif de chauffage équipé d'un tel echangeur thermique
US9827828B2 (en) 2008-07-15 2017-11-28 Borgwarner Beru Systems Gmbh Vehicle heating system
CN110195936A (zh) * 2019-05-05 2019-09-03 河北科技大学 熔融盐电辅热恒参数热风换热器

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR792354A (fr) * 1934-07-27 1935-12-30 Manuf Generale Metallurg élément d'échangeur de chaleur
EP0057172A2 (fr) * 1981-01-26 1982-08-04 Walther Dr. Menhardt Elément chauffant auto-régulateur
JPS58108394A (ja) * 1981-12-21 1983-06-28 Hitachi Ltd 熱交換器
FR2660746A1 (fr) * 1990-04-10 1991-10-11 Valeo Echangeur de chaleur a tubes pour le degivrage rapide d'un pare-brise, et son procede de montage.
DE4433814A1 (de) 1994-09-22 1996-03-28 Behr Gmbh & Co Kraftfahrzeug
EP0707434A2 (fr) * 1994-10-14 1996-04-17 Behr GmbH & Co. Radiateur pour système de chauffage d'un véhicule à moteur
DE19835229A1 (de) 1997-08-06 1999-02-11 Denso Corp Heizzwecken dienender Wärmetauscher mit elektrischer Wärmeabgabeeinrichtung
DE19911547A1 (de) 1999-03-16 2000-09-21 Behr Gmbh & Co Elektrische Heizeinrichtung für ein Kraftfahrzeug
DE19957452A1 (de) 1999-11-19 2001-05-23 Behr France Sarl Elektrische Heizeinrichtung, insbesondere für ein Kraftfahrzeug

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR792354A (fr) * 1934-07-27 1935-12-30 Manuf Generale Metallurg élément d'échangeur de chaleur
EP0057172A2 (fr) * 1981-01-26 1982-08-04 Walther Dr. Menhardt Elément chauffant auto-régulateur
JPS58108394A (ja) * 1981-12-21 1983-06-28 Hitachi Ltd 熱交換器
FR2660746A1 (fr) * 1990-04-10 1991-10-11 Valeo Echangeur de chaleur a tubes pour le degivrage rapide d'un pare-brise, et son procede de montage.
DE4433814A1 (de) 1994-09-22 1996-03-28 Behr Gmbh & Co Kraftfahrzeug
EP0707434A2 (fr) * 1994-10-14 1996-04-17 Behr GmbH & Co. Radiateur pour système de chauffage d'un véhicule à moteur
EP0707434B1 (fr) 1994-10-14 2001-01-03 Behr GmbH & Co. Radiateur pour système de chauffage d'un véhicule à moteur
DE19835229A1 (de) 1997-08-06 1999-02-11 Denso Corp Heizzwecken dienender Wärmetauscher mit elektrischer Wärmeabgabeeinrichtung
DE19911547A1 (de) 1999-03-16 2000-09-21 Behr Gmbh & Co Elektrische Heizeinrichtung für ein Kraftfahrzeug
DE19957452A1 (de) 1999-11-19 2001-05-23 Behr France Sarl Elektrische Heizeinrichtung, insbesondere für ein Kraftfahrzeug

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 007, no. 215 (M - 244) 22 September 1983 (1983-09-22) *

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2884763A1 (fr) * 2005-04-26 2006-10-27 Valeo Systemes Thermiques Dispositif de chauffage pour installation de chauffage, de ventilation et/ou de climatisation d'un habitacle de vehicule automobile
EP1717525A1 (fr) * 2005-04-26 2006-11-02 Valeo Systemes Thermiques Dispositif de chauffage pour installation de chauffage, de ventilation et/ou de climatisation d'un habitacle de véhicule automobile
EP1717525B1 (fr) 2005-04-26 2016-12-28 Valeo Systemes Thermiques Dispositif de chauffage pour installation de chauffage, de ventilation et/ou de climatisation d'un habitacle de véhicule automobile
US9827828B2 (en) 2008-07-15 2017-11-28 Borgwarner Beru Systems Gmbh Vehicle heating system
WO2016066601A1 (fr) * 2014-10-31 2016-05-06 Webasto SE Échangeur thermique et dispositif de chauffage équipé d'un tel echangeur thermique
CN110195936A (zh) * 2019-05-05 2019-09-03 河北科技大学 熔融盐电辅热恒参数热风换热器

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