EP2293648A1 - Caloporteur - Google Patents
Caloporteur Download PDFInfo
- Publication number
- EP2293648A1 EP2293648A1 EP09290663A EP09290663A EP2293648A1 EP 2293648 A1 EP2293648 A1 EP 2293648A1 EP 09290663 A EP09290663 A EP 09290663A EP 09290663 A EP09290663 A EP 09290663A EP 2293648 A1 EP2293648 A1 EP 2293648A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- heat exchanger
- profile
- heating
- insulating
- contact plates
- 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
Links
- 238000010438 heat treatment Methods 0.000 claims abstract description 51
- 238000009413 insulation Methods 0.000 claims abstract description 29
- 229920001296 polysiloxane Polymers 0.000 claims abstract description 4
- 239000006260 foam Substances 0.000 claims abstract description 3
- 239000004020 conductor Substances 0.000 abstract description 6
- 239000000428 dust Substances 0.000 description 14
- 238000009825 accumulation Methods 0.000 description 6
- 150000001875 compounds Chemical class 0.000 description 6
- 238000004382 potting Methods 0.000 description 6
- 230000015556 catabolic process Effects 0.000 description 5
- 239000002245 particle Substances 0.000 description 3
- 238000005192 partition Methods 0.000 description 3
- 238000004378 air conditioning Methods 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 150000003071 polychlorinated biphenyls Chemical class 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 239000002918 waste heat Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
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
-
- 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
- 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
Definitions
- the invention relates to a heat exchanger according to the preamble of claim 1.
- the electric auxiliary heating in consumption-optimized vehicles which provide, for example, in the start-up phase or at low outside temperatures too little waste heat for heating the interior of a motor vehicle, is carried out in the prior art, for example by means of so-called PTC heaters.
- Such a PTC heating device essentially comprises two main components: on the one hand heating strands or heating registers and on the other hand power supply elements.
- the heating registers essentially comprise PTC heating elements, contact plates and heat dissipation elements.
- the power supply elements comprise electrical cables or busbars which are connected to the contact plates of the heating coils and connect them to a power supply.
- such a PTC heating device is arranged behind or behind the evaporator in the air flow direction.
- forms are on the evaporator condensation, which can be forwarded to the heating registers of the PTC heater.
- PTC device In a high-voltage PTC device, however, it is important that this water does not reach the power supply elements or only to the smallest possible extent in order to avoid disturbances.
- a heating device in which the PTC elements are held in a "clamping package" with the other elements of the heating device.
- the clamp acts to hold all the elements together and stands vertically on the contact surfaces of the PTC element.
- the outer heating stages each have a PTC row, wherein electrode sheets of the middle assemblies are connected by means of a bridge.
- the modules are held in a frame of side rails and longitudinal beams, wherein electrical connection lugs laterally protrudes through one of the two side rails for contacting the contact plates.
- this side rail forms a partition wall between the heating registers and the power supply elements.
- the power supply elements are not protected against moisture and dust and, as already mentioned, a build-up of dust between the contact components and the partition may create a bridge, which is the risk of breakdown due to the accumulation of dust and moisture on the surface of the partition elevated.
- a heat exchanger in particular an electric heater for a motor vehicle, provided with at least one at least one heating element and two contact plates having heater, wherein the at least one heater is arranged in a frame, and wherein provided on the at least one heater an insulation profile in potential-free arrangement is.
- the insulating profile is disposed on the floating components of the at least one heating register or the heating registers, with this arrangement, no bridges between the contact members or plugs can be formed, the risk of breakdown due to dust accumulation and moisture precipitation would increase on the insulation profile.
- the at least one heating register has a substantially plate-like insulating component, wherein the insulating component is preferably arranged in the middle of the heating register.
- the insulating component has an insulating layer on opposite surfaces.
- a heat conducting plate in particular in the form of a sheet, is provided on the insulating layer.
- the heat exchanger preferably has at least one ribbed element, in particular a corrugated rib element, which contacts the heat conducting plate provided on the heating coil.
- the insulation profile is in contact with the insulating layer. Since the insulating profile is positioned on the heating register, wherein it laterally with the insulating layer or with the heat conducting plate or the sheet between the insulating layer and the fin element in contact, and wherein it is also in the air flow direction on both sides in contact with the element which between the contact plates is arranged, the circumference of the insulating portion of the heating register is in continuous contact with the insulation profile. Since the insulation profile is still not connected to the contact plates or with plugs by this configuration, but only with potential-free components in contact, it forms no bridge between contact components or plugs, the risk of breakdown due to an accumulation of dust and moisture on the would increase the surface of the Isoll mecanicsprofils.
- the insulation profile has at least one opening through which the at least one heating register is inserted.
- the at least one opening is U-shaped.
- the insulation profile has a thickness which lies in a range of 2 to 3 mm.
- the insulation profile is formed as a separate component.
- the insulation profile may also be cast in the frame.
- the insulation profile is made of silicone. This material is particularly preferred because it can withstand temperatures of about 140 ° C to 170 ° C.
- the contact plates protrude from the heat exchanger on the opposite side of the insulation profile of this.
- a cover element which is made in particular of plastic, is provided on the heat exchanger, which covers the contact plates and the contact plates connected power supply elements, such as cables or busbars.
- the cover element which covers the contact sheets and the wiring or busbars, these are not exposed and thus can not be touched or contacted in any other way. This increases the electrical safety.
- the power-conducting elements are protected by providing the cover from dust and moisture.
- a first seal in particular a rubber profile or a foam profile, is provided between the cover element and the heat exchanger, and a second seal is provided between the cover element and a supply plug.
- the cover element By tightly connecting the cover element with the heat exchanger or with the insulation profile, the cover element forms a sealed box and can thus act as a second seal for an electrically insulating potting compound.
- an electrical insulating element is provided which electrically isolates an electrical resistance heating element and / or electrical conductors of the heating register in that they are arranged in a cavity which is filled by an electrically insulating potting compound. In case of failure of the seal on a resistance heating element and / or electrical conductor, the potting compound is collected in the cover element.
- the inner region of the cover element thus forms a sealed box from which the potting compound can not leak - for example into the passenger compartment.
- the heating capacity of this heater may be reduced, but no operating hazard is caused.
- the box remains relatively cool during normal operation as well as when the potting compound drains.
- the seals also protect the electrical components inside the box from the ingress of external moisture and from dust.
- FIG. 1 an exploded view of a heating register 1 according to the prior art is shown.
- the heating register 1 comprises a receiving frame 2, in which three heating elements 3 are arranged or fixed in the form of PTC elements.
- the PTC elements 3 are PTC thermistors made of ceramic and represent a very strong temperature-dependent semiconductor resistance. This means that with increasing temperature, the resistance of the ceramic element increases very greatly. This raises regardless of the boundary conditions such. B. applied voltage, nominal resistance, amount of air above the PTC element a very uniform surface temperature at the PTC element, wherein with increasing temperature, the electrical resistance increases proportionally strong.
- Fig. 2 shows a perspective view of a heat exchanger 10 according to an embodiment.
- the not visible here heating register 1 are received in a frame 11.
- the frame 11 has on its front side 12 and on its rear side 13 respective grid elements 14, through which an air flow can enter or exit the heat exchanger 10.
- the insulating profile 16 here has a thickness of 2 mm and is made of silicone, so that it withstands temperatures in a range of 140 ° C to 170 ° C.
- the insulating profile 16 is made as a separate component and is fastened to the frame 11 via fastening devices 17.
- the insulation profile 16 is positioned on the heating registers 1, wherein the respective contact plates 6, 6 'protrude through openings 18 formed in a U-shaped manner in the insulation profile 16.
- FIG. 3 shows a detailed view of a lower portion of the heat exchanger 10 of Fig. 2 , wherein only a lower half of the insulation profile 16 is shown and the upper half has been omitted for illustrative purposes.
- each heating register 1 on both sides of the insulating layers 7, 7 'and arranged thereon heat conducting plates 8, 8', to which the Rippelenimplantation 9 adjacent.
- an insulating member 19 is arranged centrally, in which the not visible here PTC elements are housed.
- the insulation profile 16 does not form a bridge between the contact components or plugs, which would increase the risk of breakdown due to dust accumulation and moisture precipitation.
- Fig. 4 shows a schematic sectional view of a heat exchanger 10 according to another embodiment.
- the individual heating registers 1 are only indicated schematically, on which the insulation profile 16 on the above in connection with Fig. 2 and Fig. 3 described manner is arranged floating.
- Each heating register 1 in this case has at least two conductor tracks 17 which have different electrical potentials (high-voltage minus "HV" and high-voltage plus "HV + ").
- the conductor tracks 17 are connected to a power plug 21.
- a cover element 22 is placed tightly on the heat exchanger 10 or on the insulation profile 16 by means of a first seal 23.
- a second seal 24 is provided between the cover member 22 and the power plug 21.
- FIG. 5 shows a schematic sectional view of a heat exchanger 10 according to a further embodiment, which differs from the in Fig. 4 shown embodiment differs only in that instead of the cable 20 busbars 26 are provided, which connect the contact plates 6, 6 'of each heater 10 with the power connector 21.
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)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP09290663.5A EP2293648B1 (fr) | 2009-09-02 | 2009-09-02 | Caloporteur |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP09290663.5A EP2293648B1 (fr) | 2009-09-02 | 2009-09-02 | Caloporteur |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2293648A1 true EP2293648A1 (fr) | 2011-03-09 |
EP2293648B1 EP2293648B1 (fr) | 2017-07-19 |
Family
ID=41508270
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP09290663.5A Revoked EP2293648B1 (fr) | 2009-09-02 | 2009-09-02 | Caloporteur |
Country Status (1)
Country | Link |
---|---|
EP (1) | EP2293648B1 (fr) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3064856A1 (fr) * | 2015-03-02 | 2016-09-07 | Mahle International GmbH | Dispositif de chauffage |
EP2933577B1 (fr) | 2014-04-14 | 2017-12-06 | Mahle Behr France Rouffach S.A.S | Dispositif de chauffage électrique |
US10363797B2 (en) | 2013-06-03 | 2019-07-30 | Borgwarner Ludwigsburg Gmbh | Vehicle heater |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1182908B1 (fr) | 2000-08-25 | 2003-04-23 | Catem GmbH & Co.KG | Elément chauffant PTC employant un adhésif |
EP1523226A1 (fr) * | 2003-10-07 | 2005-04-13 | Behr France S.A.R.L. | Ensemble de chauffage comprenant des éléments PTC, particulièrement pour véhicules à moteurs |
EP1802176A1 (fr) * | 2005-12-21 | 2007-06-27 | Valeo Systèmes Thermiques | Optimisation d'un dispositif de chauffage |
US20080173637A1 (en) * | 2005-11-02 | 2008-07-24 | Koshiro Taguchi | Insulated waterproof heater |
EP2063683A1 (fr) * | 2006-09-13 | 2009-05-27 | Calsonic Kansei Corporation | Chauffage électrique et son procédé de fabrication |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2948591A1 (de) | 1979-12-03 | 1981-06-11 | Fa. Fritz Eichenauer, 6744 Kandel | Durchlauferhitzer |
DE4040258C2 (de) | 1990-12-17 | 1997-01-30 | Braun Ag | Elektrische Heizeinheit mit PTC-Heizkörpern, insbesondere für Haarpflegegeräte |
JP3298493B2 (ja) | 1997-03-18 | 2002-07-02 | 株式会社デンソー | 車両暖房用熱交換器 |
IL121915A0 (en) | 1997-10-07 | 1998-03-10 | Body Heat Ltd | Immersible PTC heating device |
DE19902050C2 (de) | 1998-02-20 | 2002-06-27 | Micro Compact Car Smart Gmbh | Heizungs- oder Klimaanlage für Fahrzeuge |
JP4092805B2 (ja) | 1999-03-19 | 2008-05-28 | 株式会社デンソー | 車両用空調装置 |
ES2337652T3 (es) | 2001-12-06 | 2010-04-28 | EBERSPACHER CATEM GMBH & CO. KG | Dispositivo calefactor electrico. |
US7064301B2 (en) | 2004-03-22 | 2006-06-20 | Halla Climate Control Corporation | Electric heater |
EP1657963B1 (fr) | 2004-11-11 | 2007-03-14 | DBK David + Baader GmbH | Elément chauffant d'une carte de circuit imprimé, carte de circuit imprimé et procédé de chauffage |
ES2303167T3 (es) * | 2005-09-23 | 2008-08-01 | CATEM GMBH & CO. KG | Elemento generador de calor de un dispositivo calefactor. |
JP2007118779A (ja) | 2005-10-28 | 2007-05-17 | Calsonic Kansei Corp | ヒータ構造 |
-
2009
- 2009-09-02 EP EP09290663.5A patent/EP2293648B1/fr not_active Revoked
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1182908B1 (fr) | 2000-08-25 | 2003-04-23 | Catem GmbH & Co.KG | Elément chauffant PTC employant un adhésif |
EP1523226A1 (fr) * | 2003-10-07 | 2005-04-13 | Behr France S.A.R.L. | Ensemble de chauffage comprenant des éléments PTC, particulièrement pour véhicules à moteurs |
US20080173637A1 (en) * | 2005-11-02 | 2008-07-24 | Koshiro Taguchi | Insulated waterproof heater |
EP1802176A1 (fr) * | 2005-12-21 | 2007-06-27 | Valeo Systèmes Thermiques | Optimisation d'un dispositif de chauffage |
EP2063683A1 (fr) * | 2006-09-13 | 2009-05-27 | Calsonic Kansei Corporation | Chauffage électrique et son procédé de fabrication |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10363797B2 (en) | 2013-06-03 | 2019-07-30 | Borgwarner Ludwigsburg Gmbh | Vehicle heater |
EP2933577B1 (fr) | 2014-04-14 | 2017-12-06 | Mahle Behr France Rouffach S.A.S | Dispositif de chauffage électrique |
EP3064856A1 (fr) * | 2015-03-02 | 2016-09-07 | Mahle International GmbH | Dispositif de chauffage |
Also Published As
Publication number | Publication date |
---|---|
EP2293648B1 (fr) | 2017-07-19 |
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