DE20121116U1 - Electric heating device for heating a liquid in a motor vehicle - Google Patents

Electric heating device for heating a liquid in a motor vehicle

Info

Publication number
DE20121116U1
DE20121116U1 DE20121116U DE20121116U DE20121116U1 DE 20121116 U1 DE20121116 U1 DE 20121116U1 DE 20121116 U DE20121116 U DE 20121116U DE 20121116 U DE20121116 U DE 20121116U DE 20121116 U1 DE20121116 U1 DE 20121116U1
Authority
DE
Germany
Prior art keywords
heating device
heating
connection
plate
frame
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.)
Expired - Lifetime
Application number
DE20121116U
Other languages
German (de)
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.)
Eichenauer Heizelemente GmbH and Co KG
Original Assignee
Fritz Eichenauer GmbH and Co KG
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 Fritz Eichenauer GmbH and Co KG filed Critical Fritz Eichenauer GmbH and Co KG
Priority to DE20121116U priority Critical patent/DE20121116U1/en
Priority to DE10258257.2A priority patent/DE10258257B4/en
Publication of DE20121116U1 publication Critical patent/DE20121116U1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
    • F02N19/00—Starting aids for combustion engines, not otherwise provided for
    • F02N19/02—Aiding engine start by thermal means, e.g. using lighted wicks
    • F02N19/04—Aiding engine start by thermal means, e.g. using lighted wicks by heating of fluids used in engines
    • F02N19/10—Aiding engine start by thermal means, e.g. using lighted wicks by heating of fluids used in engines by heating of engine coolants
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M31/00—Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture
    • F02M31/02—Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture for heating
    • F02M31/12—Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture for heating electrically
    • F02M31/125—Fuel
    • 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
    • H05B3/10—Heater elements characterised by the composition or nature of the materials or by the arrangement of the conductor
    • H05B3/12—Heater elements characterised by the composition or nature of the materials or by the arrangement of the conductor characterised by the composition or nature of the conductive material
    • H05B3/14—Heater elements characterised by the composition or nature of the materials or by the arrangement of the conductor characterised by the composition or nature of the conductive material the material being non-metallic
    • 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
    • H05B3/00—Ohmic-resistance heating
    • H05B3/78—Heating arrangements specially adapted for immersion heating
    • H05B3/82—Fixedly-mounted immersion heaters
    • 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
    • H05B2203/021—Heaters specially adapted for heating liquids
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/12—Improving ICE efficiencies

Description

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßtThe description text was not recorded electronically

Claims (21)

1. Elektrische Heizeinrichtung zum Beheizen einer Flüssigkeit in einem Kfz, wel­ che einen von einem metallischen Gehäuse (6), welches im Betrieb in die Flüssigkeit eintaucht, dicht umschlossenen Heizeinsatz (20) aufweist, welcher ein oder mehrere Heizelemente (3) und einen Anschluß (4) zum elektrischen Kontaktieren des einen bzw. der mehreren Heizelemente (3) aufweist, wobei das eine bzw. die mehreren Heizelemente (3) in dem Gehäuse (6) einge­ klemmt sind, welches zu diesem Zweck zusammengedrückt und mit dem ei­ nen bzw. den mehreren Heizelementen (3) elektrisch leitend verbunden ist, während der Anschluß (4) gegen das Gehäuse (6) elektrisch isoliert ist.1. Electric heating device for heating a liquid in a motor vehicle, which che one of a metallic housing ( 6 ) which is immersed in the liquid during operation, has a tightly enclosed heating insert ( 20 ) which has one or more heating elements ( 3 ) and a connection ( 4 ) for electrical contacting of the one or more heating elements ( 3 ), the one or more heating elements ( 3 ) being clamped in the housing ( 6 ), which is compressed for this purpose and connected to the egg or The plurality of heating elements ( 3 ) is electrically conductively connected, while the connection ( 4 ) is electrically insulated from the housing ( 6 ). 2. Heizeinrichtung nach Anspruch 1, dadurch gekennzeichnet, daß der Hei­ zeinsatz (20) einen Rahmen (2) aufweist, welcher das eine oder die mehreren Heizelemente (3) aufnimmt und in ihrer Lage fixiert.2. Heating device according to claim 1, characterized in that the heating insert ( 20 ) has a frame ( 2 ) which receives the one or more heating elements ( 3 ) and fixes them in their position. 3. Heizeinrichtung nach Anspruch 2, dadurch gekennzeichnet, daß der Rah­ men (2) mehrere Heizelemente (3) in einer Reihe angeordnet aufnimmt.3. Heating device according to claim 2, characterized in that the frame men ( 2 ) receives a plurality of heating elements ( 3 ) arranged in a row. 4. Heizeinrichtung nach einem der vorstehenden Ansprüche, dadurch gekenn­ zeichnet, daß die Heizelemente (3) platten- oder scheibenförmig ausgebildet sind.4. Heating device according to one of the preceding claims, characterized in that the heating elements ( 3 ) are plate-shaped or disc-shaped. 5. Heizeinrichtung nach einem der vorstehenden Ansprüche, dadurch gekenn­ zeichnet, daß der Anschluß (4) als Anschlußblech ausgeführt ist. 5. Heating device according to one of the preceding claims, characterized in that the connection ( 4 ) is designed as a connecting plate. 6. Heizeinrichtung nach einem der vorstehenden Ansprüche, dadurch gekenn­ zeichnet, daß der Rahmen (2) formschlüssig mit dem metallischen Anschluß­ blech (4) verrastet ist.6. Heating device according to one of the preceding claims, characterized in that the frame ( 2 ) is positively locked to the metal connecting plate ( 4 ). 7. Heizeinrichtung nach einem der vorstehenden Ansprüche, dadurch gekenn­ zeichnet, daß das Anschlußblech (4) auf seiner vom Heizelement (3) abge­ wandten Seite von einer Isolierschicht (5) bedeckt ist.7. Heating device according to one of the preceding claims, characterized in that the connecting plate ( 4 ) on its side facing away from the heating element ( 3 ) is covered by an insulating layer ( 5 ). 8. Heizeinrichtung nach Anspruch 7, dadurch gekennzeichnet, daß die Isolier­ schicht (5) als eine Platte oder Folie ausgeführt ist.8. Heating device according to claim 7, characterized in that the insulating layer ( 5 ) is designed as a plate or film. 9. Heizeinrichtung nach Anspruch 8, dadurch gekennzeichnet, daß der Rah­ men (2) Seitenwände aufweist, welche die Isolierschicht (5) positionieren.9. Heating device according to claim 8, characterized in that the frame men ( 2 ) has side walls which position the insulating layer ( 5 ). 10. Heizeinrichtung nach einem der Ansprüche 7 bis 9, dadurch gekennzeich­ net, daß die Isolierschicht (5) aus Keramik, insbesondere Aluminiumoxid, ge­ fertigt ist.10. Heating device according to one of claims 7 to 9, characterized in that the insulating layer ( 5 ) made of ceramic, in particular aluminum oxide, is made ge. 11. Heizeinrichtung nach einem der vorstehenden Ansprüche, dadurch gekenn­ zeichnet, daß der Rahmen (2) formschlüssig mit einem metallischen Kontakt­ blech (1) verbunden ist.11. Heating device according to one of the preceding claims, characterized in that the frame ( 2 ) is positively connected to a metallic contact plate ( 1 ). 12. Heizeinrichtung nach Anspruch 11, dadurch gekennzeichnet, daß das Kon­ taktblech (1) aus Aluminium oder einer Aluminiumlegierung gefertigt ist.12. Heating device according to claim 11, characterized in that the con tact plate ( 1 ) is made of aluminum or an aluminum alloy. 13. Heizeinrichtung nach Anspruch 11 oder 12, dadurch gekennzeichnet, daß das Kontaktblech (1) ein Strangpreßprofil ist. 13. Heating device according to claim 11 or 12, characterized in that the contact plate ( 1 ) is an extruded profile. 14. Heizeinrichtung nach einem der Ansprüche 11 bis 12, dadurch gekennzeich­ net, daß das Kontaktblech (1) mindestens eine Nut (8) zur Aufnahme eines Drahtanschlußes (7) aufweist.14. Heating device according to one of claims 11 to 12, characterized in that the contact plate ( 1 ) has at least one groove ( 8 ) for receiving a wire connection ( 7 ). 15. Heizeinrichtung nach Anspruch 14, dadurch gekennzeichnet, daß der Draht­ anschluß (7) und das Kontaktblech (1) zur Wärmeabfuhr eines Leistungshalb­ leiters einer Steuerelektronik dienen.15. Heating device according to claim 14, characterized in that the wire connection ( 7 ) and the contact plate ( 1 ) are used for heat dissipation of a power semiconductor of a control electronics. 16. Heizeinrichtung nach einem der vorstehenden Ansprüche, dadurch gekenn­ zeichnet, daß der Rahmen (2) aus Kunststoff gefertigt ist.16. Heating device according to one of the preceding claims, characterized in that the frame ( 2 ) is made of plastic. 17. Heizeinrichtung nach einem der vorstehenden Ansprüche, dadurch gekenn­ zeichnet, daß das Gehäuse (6) einen Flansch (6f) zum Anschluß an eine An­ schlußkappe aufweist.17. Heating device according to one of the preceding claims, characterized in that the housing ( 6 ) has a flange ( 6 f) for connection to a closure cap. 18. Heizeinrichtung nach Anspruch 17, dadurch gekennzeichnet, daß der Flansch (6f) an seinem Rand Vorsprünge (6g) aufweist, welche in einer Flan­ schebene verlaufen und einen Formschluß mit der Anschlußkappe ermöglichen.18. Heating device according to claim 17, characterized in that the flange ( 6 f) has at its edge projections ( 6 g) which extend in a flan plane and enable a positive connection with the connection cap. 19. Heizeinrichtung nach einem der vorstehenden Ansprüche, dadurch gekenn­ zeichnet, daß das Anschlußblech (4) aus Kupfer oder einer Kupferlegierung gefertigt ist.19. Heating device according to one of the preceding claims, characterized in that the connecting plate ( 4 ) is made of copper or a copper alloy. 20. Heizeinrichtung nach einem der vorstehenden Ansprüche, dadurch gekenn­ zeichnet, daß das Anschlußblech (4) vor einem Anschlußelement (12) eine Engstelle (14) zur thermischen Entkopplung des Anschlußelementes (12) aufweist.20. Heating device according to one of the preceding claims, characterized in that the connecting plate ( 4 ) in front of a connecting element ( 12 ) has a narrow point ( 14 ) for thermal decoupling of the connecting element ( 12 ). 21. Heizeinrichtung nach einem der vorstehenden Ansprüche, dadurch gekenn­ zeichnet, daß das Gehäuse (6) mit einer Schicht (19) überzogen ist.21. Heating device according to one of the preceding claims, characterized in that the housing ( 6 ) is coated with a layer ( 19 ).
DE20121116U 2001-12-21 2001-12-21 Electric heating device for heating a liquid in a motor vehicle Expired - Lifetime DE20121116U1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE20121116U DE20121116U1 (en) 2001-12-21 2001-12-21 Electric heating device for heating a liquid in a motor vehicle
DE10258257.2A DE10258257B4 (en) 2001-12-21 2002-12-13 Electric heating device for heating a liquid in a motor vehicle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE20121116U DE20121116U1 (en) 2001-12-21 2001-12-21 Electric heating device for heating a liquid in a motor vehicle

Publications (1)

Publication Number Publication Date
DE20121116U1 true DE20121116U1 (en) 2003-04-24

Family

ID=7965779

Family Applications (2)

Application Number Title Priority Date Filing Date
DE20121116U Expired - Lifetime DE20121116U1 (en) 2001-12-21 2001-12-21 Electric heating device for heating a liquid in a motor vehicle
DE10258257.2A Expired - Fee Related DE10258257B4 (en) 2001-12-21 2002-12-13 Electric heating device for heating a liquid in a motor vehicle

Family Applications After (1)

Application Number Title Priority Date Filing Date
DE10258257.2A Expired - Fee Related DE10258257B4 (en) 2001-12-21 2002-12-13 Electric heating device for heating a liquid in a motor vehicle

Country Status (1)

Country Link
DE (2) DE20121116U1 (en)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1467599A2 (en) * 2003-04-12 2004-10-13 Eichenauer Heizelemente GmbH & Co.KG Device for the admission of ceramic heating elements and procedure for the production of such
EP1523224A1 (en) * 2003-09-15 2005-04-13 David & Baader DBK Spezialfabrik elektrischer Apparate und Heizwiderstände GmbH Electrical heating cartridge
WO2006131201A2 (en) * 2005-06-04 2006-12-14 Eichenauer Heizelemente Gmbh & Co.Kg Urea supply system for a waste gas cleaning catalyst and suitable heating element therefor
WO2009053174A1 (en) * 2007-10-18 2009-04-30 Robert Bosch Gmbh Heating unit for liquid fuels and the like
WO2010102670A1 (en) * 2009-03-12 2010-09-16 Sicce Spa Heater for aquariums, particularly of the immersion type
EP2462339A1 (en) * 2009-08-04 2012-06-13 Calix AB Electrical heating device for vehicles
CN107091187A (en) * 2017-05-27 2017-08-25 广州市广达精密机械有限公司 A kind of protected type parking heater
CN109424416A (en) * 2017-08-31 2019-03-05 现代自动车株式会社 Cooling hot-water heating system for electric vehicle
CN112788803A (en) * 2019-11-07 2021-05-11 埃贝赫卡腾有限两合公司 PTC heating device, electric heating device, and method for manufacturing electric heating device
DE102013100973B4 (en) 2012-10-02 2022-08-11 Eichenauer Heizelemente Gmbh & Co. Kg Electrical heating device
EP4084577A3 (en) * 2021-04-26 2022-11-09 Eberspächer catem GmbH & Co. KG Electric heating device and method for its production

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DE502004000765D1 (en) † 2004-01-23 2006-07-27 Dbk David & Baader Gmbh Heating clip for a fluid line
DE102004054625A1 (en) * 2004-11-11 2006-05-18 Mann + Hummel Gmbh resistance heating
DE102004062605B4 (en) 2004-12-24 2013-02-28 Eichenauer Heizelemente Gmbh & Co. Kg An electric heater for heating liquid in a motor vehicle and a liquid container having such a heater
DE102004062604A1 (en) * 2004-12-24 2006-07-06 Eichenauer Heizelemente Gmbh & Co. Kg Electrical heater for heating e.g. windshield washing fluid, has heating unit arranged in housing which is designed in form of square tube, where housing is sealed at one end with short plug that is formed from plastic
DE102005011182A1 (en) * 2005-03-09 2006-09-14 Mann + Hummel Gmbh Heating device for fuels
KR101055828B1 (en) 2008-11-05 2011-08-09 현대자동차주식회사 Fuel Filters for Diesel Engines
DE102010006184A1 (en) 2010-01-29 2011-08-04 Eichenauer Heizelemente GmbH & Co. KG, 76870 An electric heater and method of manufacturing an electric heater
BE1020669A5 (en) 2012-01-04 2014-03-04 Zelitec Group S A R L DEVICE FOR PREHEATING A FLUID, IN PARTICULAR A COOLING FLUID OF A COMBUSTION ENGINE.
DE102014108074A1 (en) * 2014-06-06 2015-12-17 Dbk David + Baader Gmbh Heating module and tank system
US11118810B2 (en) 2017-10-19 2021-09-14 Tom Richards, Inc. Heat transfer assembly
DE102017011686A1 (en) 2017-12-18 2019-06-19 I.G. Bauerhin Gmbh Heating device for heating liquids in a reservoir, such as a tank or a container of a vehicle
DE202017006480U1 (en) 2017-12-18 2019-03-19 I.G. Bauerhin Gmbh Heating device for heating liquids in a reservoir, such as a tank or a container of a vehicle
DE102019205848A1 (en) * 2019-04-24 2020-10-29 Eberspächer Catem Gmbh & Co. Kg PTC heating element and electrical heating device with such a PTC heating element and method for producing a PTC heating element
DE102019206084A1 (en) * 2019-04-29 2020-10-29 Robert Bosch Gmbh Tank heater, process for producing a tank heater
DE102020202453B4 (en) 2020-02-26 2022-09-29 Eberspächer Catem Gmbh & Co. Kg Electrical heating device and method for its manufacture
CN113677044A (en) * 2020-05-15 2021-11-19 埃贝赫卡腾有限两合公司 PTC heating device and method for manufacturing same

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FR2634090A1 (en) * 1988-07-07 1990-01-12 Diry Andre Device for heating up a flow of liquid, especially water or diesel fuel
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DE9218708U1 (en) * 1992-05-12 1995-02-16 Tuerk & Hillinger Gmbh Electric heater with PTC elements
US5275146A (en) * 1992-07-28 1994-01-04 Texas Instruments Incorporated Heating device and system for an internal combustion engine
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EP0642293A1 (en) * 1993-09-03 1995-03-08 Texas Instruments Incorporated Heating device for an internal combustion engine
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Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1467599A3 (en) * 2003-04-12 2006-04-05 Eichenauer Heizelemente GmbH & Co.KG Device for the admission of ceramic heating elements and procedure for the production of such
US7816630B2 (en) 2003-04-12 2010-10-19 Eichenauer Heizelemente Gmbh & Co. Kg Device for receiving ceramic heating elements and method for the manufacture thereof
US7977610B2 (en) 2003-04-12 2011-07-12 Borgwarner Beru Systems Gmbh Device for receiving ceramic heating elements and method for the manufacture thereof
EP1467599A2 (en) * 2003-04-12 2004-10-13 Eichenauer Heizelemente GmbH & Co.KG Device for the admission of ceramic heating elements and procedure for the production of such
EP1523224A1 (en) * 2003-09-15 2005-04-13 David & Baader DBK Spezialfabrik elektrischer Apparate und Heizwiderstände GmbH Electrical heating cartridge
WO2006131201A2 (en) * 2005-06-04 2006-12-14 Eichenauer Heizelemente Gmbh & Co.Kg Urea supply system for a waste gas cleaning catalyst and suitable heating element therefor
WO2006131201A3 (en) * 2005-06-04 2007-03-01 Eichenauer Heizelemente Gmbh Urea supply system for a waste gas cleaning catalyst and suitable heating element therefor
US7836684B2 (en) 2005-06-04 2010-11-23 Eichenauer Heizelemente Gmbh & Co. Kg Urea supply system for a waste gas cleaning catalyst and heating insert suitable therefor
US8307813B2 (en) 2007-10-18 2012-11-13 Robert Bosch Gmbh Heating device for liquid fuels and the like
WO2009053174A1 (en) * 2007-10-18 2009-04-30 Robert Bosch Gmbh Heating unit for liquid fuels and the like
WO2010102670A1 (en) * 2009-03-12 2010-09-16 Sicce Spa Heater for aquariums, particularly of the immersion type
EP2462339A1 (en) * 2009-08-04 2012-06-13 Calix AB Electrical heating device for vehicles
EP2462339A4 (en) * 2009-08-04 2017-05-10 Calix AB Electrical heating device for vehicles
DE102013100973B4 (en) 2012-10-02 2022-08-11 Eichenauer Heizelemente Gmbh & Co. Kg Electrical heating device
CN107091187A (en) * 2017-05-27 2017-08-25 广州市广达精密机械有限公司 A kind of protected type parking heater
CN109424416A (en) * 2017-08-31 2019-03-05 现代自动车株式会社 Cooling hot-water heating system for electric vehicle
CN109424416B (en) * 2017-08-31 2021-12-28 现代自动车株式会社 Cooling water heating apparatus for electric vehicle
CN112788803A (en) * 2019-11-07 2021-05-11 埃贝赫卡腾有限两合公司 PTC heating device, electric heating device, and method for manufacturing electric heating device
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