EP1457743A1 - Réchauffeur électrique, spécialement pour une voiture - Google Patents

Réchauffeur électrique, spécialement pour une voiture Download PDF

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Publication number
EP1457743A1
EP1457743A1 EP03290621A EP03290621A EP1457743A1 EP 1457743 A1 EP1457743 A1 EP 1457743A1 EP 03290621 A EP03290621 A EP 03290621A EP 03290621 A EP03290621 A EP 03290621A EP 1457743 A1 EP1457743 A1 EP 1457743A1
Authority
EP
European Patent Office
Prior art keywords
contact
heating
elements
heating device
tongue
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
EP03290621A
Other languages
German (de)
English (en)
Other versions
EP1457743B1 (fr
Inventor
Michel Brun
Yannik Laumonnerie
Grégory Lucas
Pascal Miss
Mathieu Mougey
Christophe Schmittheisler
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 EP20030290621 priority Critical patent/EP1457743B1/fr
Publication of EP1457743A1 publication Critical patent/EP1457743A1/fr
Application granted granted Critical
Publication of EP1457743B1 publication Critical patent/EP1457743B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • 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
    • 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
    • F24H3/0441—Interfaces between the electrodes of a resistive heating element and the power supply means
    • F24H3/0447—Forms of the electrode terminals, e.g. tongues or clips
    • 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
    • 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

Definitions

  • the invention relates to an electrical heating device, in particular for a Motor vehicle according to the preamble of claim 1, known by DE-A 197 32 010.
  • Electric heaters as known from DE-A 197 32 010 were, in particular, for motor vehicles with consumption-optimized Engines determines where due to the high thermal efficiency not enough heating power is available. Therefore, the Heating systems in addition with an electric heater, a so mentioned heater, equipped.
  • This heater consists of a heating block with a plurality of mutually parallel electrical heating elements, between which corrugated fins to improve the heat transfer are arranged opposite the air.
  • the heating elements consist of two contact plates, between which PTC elements are arranged. One the contact plates each have an electrical connection element, for. B. in the form of an angled end portion of the sheet over which the contact plate is connected to a pole of an electrical supply.
  • the features of claim 1 are made of aluminum alloy or brass made contact plates provided with a contact tongue, which with a Material of high electrical conductivity is coated.
  • This will be the Advantage achieved that a flat plug conventional type can be omitted and the contact tongue of the contact plate connected directly to the power supply can be.
  • the contact plate consists of only one part and is thus easier to produce and assemble. This will cause the heating element and thus the entire heating easier and cheaper.
  • due to the good electrical conductivity coating a low contact resistance of the contact connection and thus a low voltage drop between the voltage source and the contact plate.
  • Under the heating device according to the invention is in particular a Heating block with electric heating elements with PTC elements to understand where the PTC elements are made of ceramic or plastic with PTC effect can.
  • the heating block or the electric heater others, d. H. have similar assemblies, which also contact plates and intermediate elements and heat exchange elements, z. B. are composed in the form of corrugated ribs.
  • Such assemblies have z. B. no heating elements, but so-called standardized Function elements according to the earlier German application with the File number 102 08 152.
  • contact sheets are according to the invention coated contact tongues not only for modules of the heating block with heating elements, but also with similar functional elements applicable.
  • a coating with high electrical conductivity may be preferred by tinning the contact tongue or by a coating can be achieved with copper or silver.
  • the Contact tongue in its shape and dimensions as a standardized Flat plug designed so that they together with a standard receptacle, For example, according to DIN 46 247, part of a flat connector can be. This is on the one hand a standard design of the contact terminal, but on the other hand a cheaper and lighter version created for a plug connection.
  • Fig. 1 shows an electric heater 1, which is used as additional heating for installation in a heating or air conditioning system of a motor vehicle, not shown.
  • This heating device 1 has a mounting frame 2, which consists of a heating block 3, consisting of heating elements 4, corrugated fins 5 and so-called standardizing functional elements 6.
  • a heating block 3 consisting of heating elements 4, corrugated fins 5 and so-called standardizing functional elements 6.
  • the heating block 3 consists not only of the known heating elements 4, but also of additional functional elements 6, which are similarly constructed.
  • the mounting frame 2 has a mounting flange in its upper region 7 and a connector housing 8.
  • the heater 1 may be in a not shown air flow duct of a heating system used and be fastened and sealed there by means of the mounting flange 7.
  • the power supply of the heating elements 4 via a not shown Plug which is inserted into the connector housing 8.
  • the heating element 4 consists of two differently polarized contact plates 9, 10, between which a PTC element 11 is located in electrically and thermally conductive connection , Per heating element 4, a plurality of PTC elements 11 are distributed over the length thereof and held in a known manner between the contact plates 9, 10.
  • the outer sides of the contact plates 9, 10 are in heat-conducting and electrical connection with the corrugated fins 5, which serve to increase the heat exchange surface and thus form heat exchange elements.
  • the PTC element 11 is usually made of a ceramic material, but it is also possible to use a plastic with PTC effect for heating purposes instead of the ceramic element.
  • Fig. 3 shows a section along the line III-III through the PTC element 11, the contact sheets 9, 10 and the corrugated fins 5 in Fig. 2.
  • the air flow direction is indicated by an arrow L; a flow in the opposite direction according to a dashed arrow L 'is also possible.
  • the heat generated by energizing the PTC element 11 is - as known from the prior art - passed through the contact plates 9, 10 in the corrugated fins 5 and delivered through this to the overflowing air, which is thereby heated and used to heat the passenger compartment ,
  • Fig. 4 shows one of the two contact sheets 9, 10, which is shown here as a complete item 12.
  • the contact plate 12 is formed as a metal strip and made of an aluminum alloy or brass, as well as the corrugated fins 5 (see Fig. 1 to 3).
  • the contact plate 12 has a length I and a width b - in this area, not shown here PTC elements 11 (or functionally similar elements) are arranged.
  • the left in the drawing, the end of the contact plate 12 has a contact tongue 13, which has a width a, which is smaller than the width b of the contact plate 12.
  • Contact plate 12 and contact tongue 13 are integrally stamped from a metal sheet.
  • the contact tongue 13 has a circular opening 14 in approximately central position.
  • the contact tongue 13 is coated with a coating 15, which is represented by a cross-hatching.
  • This coating 15 is arranged at least on the front and back of the contact tongue 13 and is preferably made of tin.
  • a tin layer can be produced, for example, by immersing the contact tongue 13 in a tin bath.
  • Tin is a good electrical conductor and thus improves the electrical conductivity of the contact plate 12 made of an aluminum alloy or of brass.
  • the shape of the contact tongue 13 corresponds to that of a standardized flat plug which is plugged into a standardized plug-in sleeve according to DIN 46 247.
  • the tinned contact tongues 13 so not plugged sockets are inserted, which make the connection to a power source, not shown.
  • This is a flat connector with great contact reliability and a low contact resistance is made.
  • the tinning of the contact tongues 13 could also be effected by a coating with copper or silver, whereby an even lower contact resistance and thus an even lower voltage drop between the voltage source and contact plate 12 would be achieved.
  • the circular opening 14 corresponds to a so-called, not shown here Rastarmze the likewise not shown receptacle according to DIN 46 247. Through the circular opening 14 and the locking lug in the Stekkerhülse a locking connection between the contact tongue 13 and the plug-in sleeve, not shown.

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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)
  • Air-Conditioning For Vehicles (AREA)
  • Resistance Heating (AREA)
EP20030290621 2003-03-12 2003-03-12 Réchauffeur électrique, spécialement pour une voiture Expired - Lifetime EP1457743B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP20030290621 EP1457743B1 (fr) 2003-03-12 2003-03-12 Réchauffeur électrique, spécialement pour une voiture

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP20030290621 EP1457743B1 (fr) 2003-03-12 2003-03-12 Réchauffeur électrique, spécialement pour une voiture

Publications (2)

Publication Number Publication Date
EP1457743A1 true EP1457743A1 (fr) 2004-09-15
EP1457743B1 EP1457743B1 (fr) 2013-12-25

Family

ID=32749012

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20030290621 Expired - Lifetime EP1457743B1 (fr) 2003-03-12 2003-03-12 Réchauffeur électrique, spécialement pour une voiture

Country Status (1)

Country Link
EP (1) EP1457743B1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103388891A (zh) * 2012-05-11 2013-11-13 珠海格力电器股份有限公司 电加热装置及空调器
EP3124889A1 (fr) * 2015-07-31 2017-02-01 MAHLE International GmbH Dispositif de chauffage électrique et installation de chauffage ou climatiseur doté(e) d'un tel dispositif de chauffage électrique

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0616486A1 (fr) * 1993-03-17 1994-09-21 Texas Instruments Incorporated Appareil de chauffage et procédé pour chauffer un courant de fluide
EP0720253A2 (fr) * 1994-12-27 1996-07-03 Ppg Industries, Inc. Connecteur électrique
DE19732010A1 (de) 1997-07-25 1999-01-28 Behr Gmbh & Co Elektrische Heizeinrichtung, insbesondere für ein Kraftfahrzeug
DE10138204A1 (de) * 2001-08-03 2003-02-27 Ami Doduco Gmbh Elektrischer Kontakt
US20030044635A1 (en) * 2001-08-21 2003-03-06 Udo Adler Material for a metal strip
DE10208152A1 (de) 2002-02-26 2003-09-04 Behr France Sarl Vorrichtung zum Austausch von Wärme

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0616486A1 (fr) * 1993-03-17 1994-09-21 Texas Instruments Incorporated Appareil de chauffage et procédé pour chauffer un courant de fluide
EP0720253A2 (fr) * 1994-12-27 1996-07-03 Ppg Industries, Inc. Connecteur électrique
DE19732010A1 (de) 1997-07-25 1999-01-28 Behr Gmbh & Co Elektrische Heizeinrichtung, insbesondere für ein Kraftfahrzeug
DE10138204A1 (de) * 2001-08-03 2003-02-27 Ami Doduco Gmbh Elektrischer Kontakt
US20030044635A1 (en) * 2001-08-21 2003-03-06 Udo Adler Material for a metal strip
DE10208152A1 (de) 2002-02-26 2003-09-04 Behr France Sarl Vorrichtung zum Austausch von Wärme

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103388891A (zh) * 2012-05-11 2013-11-13 珠海格力电器股份有限公司 电加热装置及空调器
CN103388891B (zh) * 2012-05-11 2016-08-31 珠海格力电器股份有限公司 电加热装置及空调器
EP3124889A1 (fr) * 2015-07-31 2017-02-01 MAHLE International GmbH Dispositif de chauffage électrique et installation de chauffage ou climatiseur doté(e) d'un tel dispositif de chauffage électrique
WO2017021107A1 (fr) * 2015-07-31 2017-02-09 Mahle International Gmbh Dispositif de chauffage électrique et installation de chauffage ou de climatisation pourvue d'un tel chauffage électrique

Also Published As

Publication number Publication date
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