WO2016066601A1 - Échangeur thermique et dispositif de chauffage équipé d'un tel echangeur thermique - Google Patents

Échangeur thermique et dispositif de chauffage équipé d'un tel echangeur thermique Download PDF

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Publication number
WO2016066601A1
WO2016066601A1 PCT/EP2015/074786 EP2015074786W WO2016066601A1 WO 2016066601 A1 WO2016066601 A1 WO 2016066601A1 EP 2015074786 W EP2015074786 W EP 2015074786W WO 2016066601 A1 WO2016066601 A1 WO 2016066601A1
Authority
WO
WIPO (PCT)
Prior art keywords
heat exchanger
medium
electrical heating
heating layer
ribbing
Prior art date
Application number
PCT/EP2015/074786
Other languages
German (de)
English (en)
Inventor
Dietmar Bytzek
Michael Zeyen
Original Assignee
Webasto SE
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 Webasto SE filed Critical Webasto SE
Publication of WO2016066601A1 publication Critical patent/WO2016066601A1/fr

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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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/22—Heating, cooling or ventilating [HVAC] devices the heat being derived otherwise than from the propulsion plant
    • B60H1/2215—Heating, cooling or ventilating [HVAC] devices the heat being derived otherwise than from the propulsion plant the heat being derived from electric heaters
    • B60H1/2221—Heating, cooling or ventilating [HVAC] devices the heat being derived otherwise than from the propulsion plant the heat being derived from electric heaters arrangements of electric heaters for heating an intermediate liquid
    • 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
    • F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
    • F24H1/0072—Special adaptations
    • F24H1/009—Special adaptations for vehicle systems
    • 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
    • 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
    • H05B3/26—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater non-flexible heating conductor mounted on insulating base
    • H05B3/262—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater non-flexible heating conductor mounted on insulating base the insulating base being an insulated metal plate
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/22—Heating, cooling or ventilating [HVAC] devices the heat being derived otherwise than from the propulsion plant
    • B60H1/2215—Heating, cooling or ventilating [HVAC] devices the heat being derived otherwise than from the propulsion plant the heat being derived from electric heaters
    • B60H1/2225—Heating, cooling or ventilating [HVAC] devices the heat being derived otherwise than from the propulsion plant the heat being derived from electric heaters arrangements of electric heaters for heating air
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/22—Heating, cooling or ventilating [HVAC] devices the heat being derived otherwise than from the propulsion plant
    • B60H2001/2268—Constructional features
    • B60H2001/2296—Constructional features integration into fluid/air heat exchangers
    • 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
    • H05B2203/013—Heaters using resistive films or coatings
    • 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
    • H05B2203/022—Heaters specially adapted for heating gaseous material
    • H05B2203/023—Heaters of the type used for electrically heating the air blown in a vehicle compartment by the vehicle heating system

Definitions

  • the present invention relates to a heat exchanger, in particular a heat exchanger for a heater, which is used in a motor vehicle.
  • the present invention has for its object to provide a heat exchanger which selectively heats a first medium or a second medium by means of electrical energy, wherein the registered in the first medium electrically generated heat quantity via the volume flow of the second medium through the heat exchanger can be controlled.
  • a heat exchanger with a first medium-carrying tubes and a thermally conductive connected to the tubes ribbing, which is arranged in a medium guide for a second medium, so that the ribbing of the second medium can be flowed through, wherein an electrical heating layer on a surface of the surface Ribbing is applied.
  • the heat exchanger described may in particular be a cross-flow heat exchanger, wherein in addition to the heating of the first and / or the second medium by the electrical heating layer, a heat transfer between the first medium and the second medium can take place.
  • the electrical heating layer can be in direct contact with the second medium so that the electrically generated thermal energy can be transferred quickly and efficiently primarily to the second medium.
  • the first medium may be liquid, for example a coolant.
  • the second medium may be gaseous, for example cabin air to be heated.
  • the specific heat capacity of the second medium can be small, so that the respective volume of the second medium present in the medium guide can absorb only a small amount of heat. In this way, when a volume flow of the second medium through the medium guide is low, thermal energy can be transmitted via the ribbing to the tubes to electrically heat the first medium. In the case of a large volume flow of the second medium through the medium guide, the entire amount of electrically generated heat is transferred to the second medium, which is connected to the electrical medium. see heating layer flows along.
  • the electrical heating layer may cover substantially the entire surface of the ribbing in the media guide.
  • the electrical heating layer may have a multilayer structure.
  • the individual layers of the electrical heating layer can be applied to the surface of the ribbing over a large area by means of a thermal spraying or spraying process.
  • the thermal spraying or spraying method can be, for example, a plasma spraying method, a cold gas spraying method or a flame spraying method.
  • the thermal spraying or spraying method may in particular be a cold gas plasma spraying process or a suspension flame spraying process.
  • a gas such as nitrogen, can be accelerated to high velocities, with particles carried by the gas striking the surface of the ribbing or a layer of the electrical heating layer already applied to the surface at high speed, for example, multiple times of sound velocity high kinetic energy form a dense, firmly adhering layer.
  • a suspension with the particles to be applied / sprayed on is first prepared in order to then inject this suspension with a flame.
  • the liquid used evaporates at least partially, preferably completely, and in the ideal case, only the respective particles strike the treated surface, which also makes it possible to produce dense layers.
  • the electrical heating layer produced is applied over the surface and in particular as a material fit on the surface of the ribbing. In this way, a particularly good heat-conducting connection between the electrical heating layer and the surface of the ribbing can be generated.
  • a conductor track which can essentially provide the ohmic resistance of the electrical heating layer, can already be structured, that is, defining individual electrical circuits that are independent of one another, applied to the surface and / or structured or further structured after application.
  • the electrical heating layer is operated with a voltage of 12 volts to 60 volts.
  • a supply voltage of 48 volts is provided.
  • the tubes are connected on the input side medium-conducting manner with an input collecting container and the output side are connected medium-conducting with an output collection container.
  • the media supply and discharge of the first medium can be regulated by a respective inflow and outflow.
  • the ribbing between the input header and the output header is arranged and surrounds the pipes. In this way, provided for heat transfer surface of the heat exchanger can be large with small dimensions.
  • a housing of a control electronics for the electrical heating layer is arranged substantially parallel to the tubes, wherein the housing of the control electronics is arranged in a normal installation position of the heat exchanger above.
  • the arrangement of the control electronics at the top of the heat exchanger can provide protection against the first medium, which can accumulate due to gravity in case of leaks in the lower part of the heat exchange. Furthermore, the accumulation of condensation in the control electronics is effectively prevented, since any accumulating condensation also flows into the lower part of the heat exchanger.
  • the control electronics can regulate the electrical heating power of the electric heating layer as a function of received control and temperature signals. It is possible to take into account desired / actual regulations for setting desired medium temperatures.
  • the control electronics can control the electrical heating power, for example, by changing the current at a constant voltage. It can be provided that the control electronics takes into account and automatically compensates for temperature-related fluctuations in the electrical heating power of the electrical heating layer.
  • the housing of the control electronics is thermally conductively connected to the input header.
  • the thermally conductive connection can be used for cooling the control electronics via a heat exchange with the first medium.
  • the ribbing comprises a multiplicity of lamellar sheets which are arranged substantially parallel to one another and parallel to the input collecting container and parallel to the output collecting container and extend essentially perpendicular to the tubes.
  • This arrangement of the lamellar plates of the ribbing can keep the provided for heat transfer surface of the ribbing low flow resistance in the medium guide and compact size of the heat exchanger low.
  • the sheets may be made of aluminum, for example.
  • the sheets may, for example, have a thickness of 0.1 to 0.2 mm.
  • the heat-conducting connection between the tubes and the ribbing is a non-positive and / or a material-locking connection. In this way, the heat transfer between the ribbing and the tubes can be large while allowing easy mounting of the ribbing on the tubes.
  • the surface of the ribbing carrying the electrical heating layer extends into the housing of the control electronics, and that electrical contacting of the electrical heating layer takes place in the interior of the housing of the control electronics.
  • the electrical contact can be arranged directly on the control electronics and protected from the media flow in the media guide.
  • the electrical contact can be done, for example, in the form of simple clamp that allow easy disassembly of the control electronics for repair, or by soldering.
  • the electrical heating layer has a substantially linearly increasing with its temperature electrical resistance.
  • the electrical heating layer is then not a PTC heating layer, so that the amount of heat generated by the electrical heating layer is substantially constant and temperature-independent within the operating temperatures reached.
  • a PTC heating layer usually has a strongly temperature-dependent electrical resistance, which in particular also runs strongly non-linear.
  • the electrical heating layer may comprise, for example, a chromium and / or an aluminum alloy which provides the desired ohmic resistance.
  • the electrical heating layer comprises an insulating covering layer.
  • the cover layer may be electrically insulating and / or moisture-insulating.
  • the cover layer may comprise borosilicate glass and / or silica gel.
  • the cover layer can protect the underlying layers of the electrical heating layer from the addition of foreign particles. The accumulation of foreign particles can lead in the long term to undesirable leakage currents.
  • a moisture-insulating cover layer may be expedient, for example, if the layer serving as an ohmic resistor for generating the electrical heating power, which may also be referred to as live conductor tracks, is susceptible to corrosion or if areas covered by the cover layer are prone to emplacement of water.
  • an insulating layer may be part of the heating layer, which electrically isolates current-carrying conductor tracks of the electrical heating layer with respect to the metal sheets.
  • the insulation layer can already arise during the production of the metal sheets, for example if the metal sheets consist of aluminum whose surface usually has a layer of aluminum oxide. This layer can be considered as part of the electrical heating layer. It may be provided that such an insulating layer is applied separately to the surface of the sheets when the sheets are made of a material that does not automatically form such an electrically insulating layer.
  • the heat exchanger described above may be part of a vehicle heater and used as part of this vehicle heater in a motor vehicle.
  • Figure 1 is a schematic sectional view through a heat exchanger
  • Figure 2 is a schematic plan view of a sheet
  • FIG. 3 shows a schematic sectional view through a metal sheet carrying an electrical heating layer.
  • FIG. 1 shows a schematic sectional view through a heat exchanger.
  • a heat exchanger 10 shown in Figure 1 can be used as part of a vehicle heater 44, wherein the vehicle heater 44 can be used in turn in a motor vehicle.
  • the heat exchanger 10 is shown in its usual installation position, so that the upper region of the heat exchanger 10 shown in Figure 1 is usually up and the bottom of the heat exchanger 10 shown in the lower part of Figure 1 is usually below.
  • the heat exchanger 10 shown in Figure 1 is designed as a classic cross-flow heat exchanger, wherein a first medium 12th in the area provided for the heat exchange of the heat exchanger 10 flows perpendicular to a second medium 24 through the heat exchanger 10.
  • the first medium 12 is supplied to the heat exchanger 10 via an input port, not specified, at the lower part of an input header tank 30.
  • the first medium 12 flows through the input collecting tank 30 and is guided via pipes 14, 16, 18, 46 to an output collecting tank 32.
  • the first medium 12 flowing into the output collecting container 32 is led out of the heat exchanger 10 via an output connection, which is not described in greater detail, the output connection being arranged in the lower region of the output collecting container 32 in the embodiment of the heat exchanger 10 shown in FIG.
  • the tubes 14, 16, 18, 46, which connect the input header tank 30 with the output header tank 32 may for example be designed as simple flat tubes, which preferably have a same, constant cross-section.
  • the flat tubes may for example have an elliptical cross-section.
  • the space present between the tubes 14, 16, 18, 46 can be regarded as a medium guide 22 in which the second medium 24, in particular perpendicular to the direction of flow of the first medium 12 inside the tubes 14, 16, 18, 46, passes through the heat exchanger 10 passes.
  • the medium guide 22 heat can be transferred from the first medium 12 to the second medium 24, the respective medium 12, 24 being heated or cooled as a function of the existing temperature difference between the first medium 12 and the second medium 24. Accordingly, a temperature compensation between the first medium 12 and the second medium 24 takes place within the heat exchanger 10.
  • Input and output ports for the second medium are outside the illustrated section plane and are accordingly not shown.
  • a ribbing 20 is arranged in the medium guide 22.
  • the ribbing 20 comprises sheets 38, 38 ', 38 ", which may for example be identically shaped, and the sheets 38, 38', 38" may surround the tubes 14, 16, 18, 46 and heat-conductively with the tubes at connection areas 50 14, 16, 18, 46 connected.
  • the thermally conductive connection in the connection regions 50 may be a frictional connection, for example.
  • a frictional connection between the tubes 14, 16, 18, 46 for example, by the width of the tubes 14, 16, 18, 46 after sliding and positioning of the sheets 38, 38 ', 38 "on the tubes 14, 16, 18, 46.
  • the sheets 38, 38', 38" can be made, for example Aluminum and be between 0.1 and 0.2 mm thick.
  • a control electronics 34 may be arranged, which may serve in particular for controlling an electric heating layer not shown separately in Figure 1.
  • This electrical heating layer can be applied in a planar manner to a surface of the sheets 38, 38 ', 38 "and can be connected to the control electronics 34 via an electrical contact 40.
  • the electrical heating layer will be described in detail later in connection with FIG a housing 36 may be received, wherein ends of the sheets 38, 38 ', 38 "can project into the housing 36, so that an electrical contact 40 can be made within the housing 36.
  • the control electronics 34 may in particular be thermally coupled to the input header tank 30, for which purpose, for example, a heat sink 52 may be provided in the upper region of the input header tank 30, which can establish a heat-conductive connection between the input header tank 30 and the control electronics 34. In this way, the control electronics 34 can be cooled by the first medium 12 flowing into the input header tank 30.
  • the first medium 12 may be, for example, a liquid medium.
  • the first medium 12 may be, for example, a coolant of a motor vehicle.
  • the arrangement of the inlet connection in the lower region of the input collection container 30 and of the outlet connection in the lower region of the output collection container 32 allows the first medium 12 to be easily discharged from the heat exchanger 10 for maintenance purposes.
  • a vent 58 can be provided, by means of which complete bubble-free filling of the heat exchanger 10 is easily possible.
  • control electronics 34 in the upper region of the heat exchanger 10 protects the control electronics 34 in front of the heat exchanger 10 by leakage possibly exiting the first medium 12 and condensate, which can form due to temperature gradients. Any escaping medium 12 and condensate These will preferably accumulate in the lower region of the heat exchanger 10 due to gravity.
  • the input header tank 30 may include a guide plate 48 through which the first medium 12, prior to delivery to the individual tubes 14, 16, 18, 46, flows completely through the top of the input header tank 30. In this way, a cooling effect exerted on the control electronics 34 can be improved.
  • the control electronics 34 may have temperature sensors, not shown in FIG. 1, which determine both the temperature of the first medium at various points within the heat exchanger 10 and the temperature of the second medium 24 at different locations of the heat exchanger 10.
  • the temperature sensors may be located near the respective input and output ports for the first medium 12 and the second medium 24.
  • 20 temperature sensors may be provided on the surface of the ribbing, whereby in particular the temperature of the electrical heating layer is monitored.
  • the electrical contact 40 between the electrical heating layer (not illustrated) on the surface of the sheets 38, 38 ', 38 "and the control electronics 34 can be produced, for example, by clamping contacts or soldering
  • the electrical contact 40 may also provide electrical contacts for sensors, in particular temperature sensors, which may be arranged on the sheets
  • the control electronics 34 may control the electrical heating power as a function of received control and temperature signals
  • the control electronics 34 can regulate the electrical heating power, for example by changing the current intensity at a constant voltage. that the control electronics 34 takes into account and automatically compensates for temperature-related fluctuations in the electrical heating power of the electrical heating layer.
  • FIG. 2 shows a schematic plan view of a sheet.
  • the sheet 38 shown in Figure 2 has openings 14 ', 16', 18 ', 46', through which the respective tubes 14, 16, 18, 46 recognizable in Figure 1 can pass through the sheet 38.
  • an electrical heating layer 26 with the electrical contact 40 is produced. recognizable, wherein for the sake of simplicity, only the electrical conductor is shown, which is flowed through to generate heat of electricity.
  • the electrical heating layer 26 may cover the entire surface 28 of the sheet 38.
  • FIG. 3 shows a schematic sectional view through a metal sheet carrying an electrical heating layer.
  • the sheet-metal 38 shown laterally cut in FIG. 3 has a surface 28 on which an electrical heating layer 26 is applied flatly.
  • the electrical heating layer 26 may comprise a conductor 56 which is traversed by current during the operation of the electrical heating layer 26 and is converted into heat in the electrical energy.
  • the trace 56 may include chromium and / or an aluminum alloy.
  • the electrical heating layer 26 may include an insulating layer 54 which electrically isolates the trace 56 from the sheet 38.
  • the electrical heating layer 26 may further include a cover layer 42 which isolates the electrical trace 56 from the medium guide 22, in which the sheet 38 may be arranged according to the heat exchanger shown in Figure 1.
  • the cover layer 42 may have, for example, an electrical insulation effect.
  • the cover layer 42 may serve as protection against contact, so that dirt and other particles can not come into contact with the conductor track 56 in an electrically conductive manner.
  • the cover layer 42 can furthermore be water-repellent, so that the conductor track 56 is not contaminated with any moisture present in the medium guide 22.
  • the cover layer 42 may comprise borosilicate glass, for example.
  • the trace 56 may include, for example, chromium or an aluminum alloy.
  • the sheet 38 may consist, for example, of aluminum, the surface 28 of the sheet 38 as a rule being present as an electrically insulating aluminum oxide (Al 2 O 3 ) by oxidation processes, which in the present case is counted as the electrical heating layer 26. If the sheet 38 is made of a material that does not automatically form an electrically insulating surface layer, the application of an aluminum oxide layer on the surface 28 of the sheet 38 may be required in separate manufacturing steps.
  • the electrical heating layer 26 may cover the entire surface 28 of the sheet 38.
  • the individual layers of the electrical heating layer 26 can be applied to the sheet 38 by means of a thermal spraying or spraying method.
  • a thermal spraying or spraying method By means of this spraying or spraying method, the individual layers of the electrical heating layer 26 can be applied in a planar manner to the surface 28 of the sheet 38.
  • the thermal spraying or spraying method can be, for example, a plasma spraying method, a cold gas spraying method or a flame spraying method.
  • the thermal spraying or spraying process can in particular a Cold gas plasma spraying method or a suspension flame spraying method.
  • a gas such as nitrogen
  • a gas can be accelerated to high speeds, with particles carried by the gas at high velocity, such as multiple sonic speeds, striking the sheet or a layer of the electrical heating layer already applied to the sheet, and high kinetic energy form a dense, firmly adhering layer.
  • suspension flame spraying a suspension with the particles to be applied / sprayed on is first prepared in order to then inject this suspension with a flame.
  • the liquid used evaporates at least partially, preferably completely, and in the ideal case, only the respective particles strike the treated surface, which also makes it possible to produce dense layers.
  • the generated electrical heating layer 26 is applied flat and in particular cohesively on the surface of the sheet 38.
  • a conductor track 56 which essentially provides the ohmic resistance of the electrical heating layer 26, can already be structured, that is, can be applied to individual electrical circuits that are independent of one another, and / or structured or further structured after the application.
  • For structuring after application depending on requirements, for example, depending on the desired interconnect distance, different methods known per se can be used.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Air-Conditioning For Vehicles (AREA)

Abstract

La présente invention concerne un échangeur thermique (10) comprenant des tubes (14, 16, 18) conduisant un premier fluide (12), et une structure d'ailettes (20) reliée par une liaison de conduction thermique à au moins un desdits tubes (14, 16, 18), laquelle structure est agencée dans une conduite de fluide (22) destinée à un second fluide (24), de manière à permettre la circulation du second fluide (24) à travers la structure d'ailettes (20), une couche chauffante électrique (26) étant appliquée sur une surface (28) de la structure d'ailettes (20). La présente invention concerne en outre un dispositif de chauffage comprenant un tel échangeur thermique, et un véhicule à moteur équipé d'un tel dispositif de chauffage.
PCT/EP2015/074786 2014-10-31 2015-10-27 Échangeur thermique et dispositif de chauffage équipé d'un tel echangeur thermique WO2016066601A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102014016214.1 2014-10-31
DE102014016214.1A DE102014016214A1 (de) 2014-10-31 2014-10-31 Wärmetauscher und Heizgerät mit einem derartigen Wärmetauscher

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Publication Number Publication Date
WO2016066601A1 true WO2016066601A1 (fr) 2016-05-06

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WO (1) WO2016066601A1 (fr)

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US11493235B2 (en) * 2019-09-19 2022-11-08 Borgwarner Ludwigsburg Gmbh Electric liquid heater for vehicles with plug connector including vent duct

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FR3065673B1 (fr) * 2017-04-28 2020-05-08 Valeo Systemes Thermiques Module de chauffage, notamment pour vehicule automobile, et installation de chauffage et/ou ventilation et/ou climatisation correspondante
FR3075334B1 (fr) * 2017-12-18 2020-05-15 Valeo Systemes Thermiques Echangeur de chaleur pour vehicule a dispositif de dissipation electriquement chauffant
FR3075333B1 (fr) * 2017-12-18 2020-02-21 Valeo Systemes Thermiques Echangeur de chaleur pour vehicule
DE102018119041A1 (de) * 2018-08-06 2020-02-06 Webasto SE Elektrisches Heizgerät

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