EP2296432A1 - Caloporteur - Google Patents

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Publication number
EP2296432A1
EP2296432A1 EP09290702A EP09290702A EP2296432A1 EP 2296432 A1 EP2296432 A1 EP 2296432A1 EP 09290702 A EP09290702 A EP 09290702A EP 09290702 A EP09290702 A EP 09290702A EP 2296432 A1 EP2296432 A1 EP 2296432A1
Authority
EP
European Patent Office
Prior art keywords
heat exchanger
electrically insulating
plastic frame
rib
insulating plastic
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
Application number
EP09290702A
Other languages
German (de)
English (en)
Other versions
EP2296432B1 (fr
Inventor
Thomas Blum
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 Rouffach SAS
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 Rouffach SAS filed Critical Behr France Rouffach SAS
Priority to EP09290702.1A priority Critical patent/EP2296432B1/fr
Publication of EP2296432A1 publication Critical patent/EP2296432A1/fr
Application granted granted Critical
Publication of EP2296432B1 publication Critical patent/EP2296432B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • 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
    • 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 resistor

Definitions

  • the invention relates to a heat exchanger according to the preamble of claim 1.
  • Electrical heaters usually use a plurality of PTC elements, which are accommodated in at least two contact plates arranged on both sides or are pressed or glued therein.
  • the heating elements are supplied by the battery systems of the motor vehicles, which have a high voltage, these high voltages can cause safety problems, and it is necessary to electrically isolate the individual heating elements.
  • a receiving device for ceramic heating elements which consists of a frame made of plastic or of a polymer ceramic or ceramic, so that the frame is electrically insulating.
  • the frame has along its length parallel longitudinal webs, which have inwardly directed longitudinal grooves.
  • the longitudinal webs are connected by spaced longitudinally arranged transverse webs.
  • the heater is inserted into the recesses between the longitudinal and transverse webs.
  • a heat exchanger in particular an electric heater for a motor vehicle, having at least one heating element, which has at least one PTC element and at least a first contact plate and at least a second contact plate is provided, wherein the at least one PTC element between the at least one first Contact plate and the at least one second contact plate is fixed, and wherein the at least one heating element is arranged completely in an electrically insulating plastic frame.
  • the at least one PTC element is fixed by gluing between the at least one first contact sheet and the at least one second contact sheet.
  • the fixation by gluing makes additional elements, such as holding frames and the like superfluous.
  • the at least one first contact plate and the at least one second contact plate each have a connector.
  • the electrically insulating plastic frame is arranged between two rib elements.
  • each of the two rib members respectively extends on one of two longitudinal sides of the electrically insulating plastic frame.
  • the electrically insulating plastic frame is designed as a rectangular hollow profile.
  • the electrically insulating plastic frame has a length which substantially corresponds to the length of the at least one heating element.
  • the electrically insulating plastic frame has a width which substantially corresponds to the width of the at least one heating element.
  • the electrically insulating plastic frame has a height which substantially corresponds to the height of the at least one heating element.
  • the electrically insulating plastic frame has a height which substantially corresponds to the height of the at least one heating element.
  • the two rib elements respectively belong to a rib block, which in each case has two rib elements and a sheet metal element arranged between the two rib elements.
  • each rib block is provided at its opposite outer surfaces, which are opposite the longitudinal sides of the electrically insulating plastic frame, with a further plate-like sheet metal element.
  • the rib block has exactly one rib element, wherein a further plate-like sheet metal element is arranged on its opposite outer surfaces, which lie opposite the longitudinal sides of the electrically insulating plastic frame.
  • these sheet metal elements can also be omitted, so that the rib block directly adjoins the plastic frame.
  • each rib member is formed as a corrugated fin member.
  • each rib block is bonded to the respective rib members of the rib block. This also provides a simple and inexpensive solution for fixing or mounting a ribbed block assembly.
  • the electrically insulating plastic frame in particular a plurality of electrically insulating plastic frame, fixed in a housing frame of the heat exchanger. It is also possible according to yet another preferred embodiment, the plurality of electrically insulating plastic frame integrally or integrally formed with the housing frame of the heat exchanger.
  • Fig.1 shows a front view of the items of a heating element 1 according to the prior art.
  • the heating element 1 consists of a plate-shaped first contact plate 2 and a plate-shaped second contact plate 3, which run parallel and together form a frame. Between the first contact plate 2 and the second contact plate 3, a plurality of PTC elements 4, here 7 pieces, arranged, which are isolated by a sealing profile 5 and secured against slipping.
  • the sealing profile 5 is as an endless profile made of silicone, cut to the length of the heating element 1, and in which perforations 6 are stamped, in which the PTC elements 4 are positioned and kept at a distance.
  • Fig. 2 shows a lower portion of a heat exchanger 7 in perspective view according to an embodiment.
  • the heat exchanger 7 comprises a housing frame 8 in which four rib blocks 9 are accommodated, each with arranged between two rib blocks 9 electrically insulating plastic frame 10.
  • the electrically insulating plastic frame 10 are formed as separate components and each fixed to the housing frame 8
  • Each electrically insulating plastic frame 10 is formed as a rectangular hollow profile and thus forms a receptacle for each heating element 1, which substantially the dimensions of the plastic frame 10 corresponds or is slightly smaller.
  • each of the first and second contact sheets 2, 3 has a connector 12 for connecting the first and second contact sheets 2, 3 and the associated PTC elements 4 to a power supply via connectable cables or bus bars (not shown) ,
  • Fig. 3 shows a rib block 9, which consists of two rib elements 13, 13 ', which are formed as corrugated ribs, and three plate-shaped sheet metal elements 14.
  • One of the three sheet metal elements 14 is arranged between the two rib elements 13, 13 'and in each case a further one is arranged on the respective outer surface of the rib elements 13, 13'.
  • the fixing of the sheet metal elements 14 to the rib elements 13, 13 ' also takes place by gluing by means of a good thermal conductivity adhesive.
  • Fig. 4 shows a lower portion of a heat exchanger 7 in a perspective view according to an embodiment, wherein the heat exchanger 7 has three electrically insulating plastic frame 10, in each of which a heating element 1 is completely received, so that only the respective connectors 12 protrude from the electrically insulating plastic frame 10.
  • Fig. 5 shows a perspective view of a heat exchanger 7 according to an embodiment, wherein the heating elements 1 in the respective electrically insulating plastic frame 10, which are formed in the embodiment integral with the housing frame 8, are added.

Landscapes

  • 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)
  • Air-Conditioning For Vehicles (AREA)
  • Resistance Heating (AREA)
EP09290702.1A 2009-09-15 2009-09-15 Caloporteur Not-in-force EP2296432B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP09290702.1A EP2296432B1 (fr) 2009-09-15 2009-09-15 Caloporteur

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP09290702.1A EP2296432B1 (fr) 2009-09-15 2009-09-15 Caloporteur

Publications (2)

Publication Number Publication Date
EP2296432A1 true EP2296432A1 (fr) 2011-03-16
EP2296432B1 EP2296432B1 (fr) 2018-01-03

Family

ID=41508749

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09290702.1A Not-in-force EP2296432B1 (fr) 2009-09-15 2009-09-15 Caloporteur

Country Status (1)

Country Link
EP (1) EP2296432B1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010020070A1 (de) * 2010-05-09 2011-11-10 Esw Gmbh Heizmodul zur Erwärmung strömender Medien und Verfahren zu seiner Herstellung
US10363797B2 (en) 2013-06-03 2019-07-30 Borgwarner Ludwigsburg Gmbh Vehicle heater
DE102020203390A1 (de) 2020-03-17 2021-09-23 Eberspächer catem Hermsdorf GmbH & Co. KG Elektrische heizeinrichtung und verfahren zu deren herstellung

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3208802A1 (de) * 1980-12-13 1983-09-22 C.S. Fudickar Kg, 5600 Wuppertal Elektrische heizvorrichtung fuer beheizte apparate
EP1182908A1 (fr) * 2000-08-25 2002-02-27 Catem GmbH & Co.KG Elément chauffant PTC employant un adhésif
DE10333451A1 (de) 2003-04-12 2004-11-25 Eichenauer Heizelemente Gmbh & Co. Kg Vorrichtung zur Aufnahme von Keramik-Heizelementen und Verfahren zur Herstellung einer solchen
EP1916873A1 (fr) * 2006-10-25 2008-04-30 Catem GmbH & Co.KG Elément générateur de la chaleur pour un dispositif chauffant électrique et son procédé de fabrication

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3208802A1 (de) * 1980-12-13 1983-09-22 C.S. Fudickar Kg, 5600 Wuppertal Elektrische heizvorrichtung fuer beheizte apparate
EP1182908A1 (fr) * 2000-08-25 2002-02-27 Catem GmbH & Co.KG Elément chauffant PTC employant un adhésif
DE10333451A1 (de) 2003-04-12 2004-11-25 Eichenauer Heizelemente Gmbh & Co. Kg Vorrichtung zur Aufnahme von Keramik-Heizelementen und Verfahren zur Herstellung einer solchen
EP1916873A1 (fr) * 2006-10-25 2008-04-30 Catem GmbH & Co.KG Elément générateur de la chaleur pour un dispositif chauffant électrique et son procédé de fabrication

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010020070A1 (de) * 2010-05-09 2011-11-10 Esw Gmbh Heizmodul zur Erwärmung strömender Medien und Verfahren zu seiner Herstellung
US10363797B2 (en) 2013-06-03 2019-07-30 Borgwarner Ludwigsburg Gmbh Vehicle heater
DE102020203390A1 (de) 2020-03-17 2021-09-23 Eberspächer catem Hermsdorf GmbH & Co. KG Elektrische heizeinrichtung und verfahren zu deren herstellung

Also Published As

Publication number Publication date
EP2296432B1 (fr) 2018-01-03

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