WO2011076834A2 - Dispositif de chauffage electrique et appareil de chauffage correspondant - Google Patents
Dispositif de chauffage electrique et appareil de chauffage correspondant Download PDFInfo
- Publication number
- WO2011076834A2 WO2011076834A2 PCT/EP2010/070466 EP2010070466W WO2011076834A2 WO 2011076834 A2 WO2011076834 A2 WO 2011076834A2 EP 2010070466 W EP2010070466 W EP 2010070466W WO 2011076834 A2 WO2011076834 A2 WO 2011076834A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- frame
- ribs
- heating
- heating device
- air
- Prior art date
Links
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
-
- 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
- F24H9/1872—PTC
Definitions
- the invention relates to an electric heating device intended to be traversed by a flow of air to be heated.
- the invention applies more particularly to heating and / or air conditioning apparatus for motor vehicles.
- the heating of the air for heating the passenger compartment of a motor vehicle, as well as demisting and defrosting is ensured by passing an air flow through a heat exchanger, plus precisely by a heat exchange between the air flow and a liquid, usually the engine coolant.
- this heating mode may be inadequate or insufficient to ensure a rapid and efficient heating of the passenger compartment, especially in certain situations such as:
- a known solution consists in adding to the heat exchanger an electric heating device, otherwise known as an electric heater, disposed downstream of the exchanger in the air circulation duct to be heated.
- This electric heating device comprises electric heating modules arranged in housings of a frame of the heating device so as to be exposed directly to the air passing through the electric heating device to achieve a quasi-immediate heat build-up.
- the frame receiving the heating modules can have a structure that is too flexible to alter or damage the heating modules.
- the invention therefore aims at an electric heating device to overcome these disadvantages of the prior art.
- the subject of the invention is an electric heating device for heating an air flow comprising a frame of generally parallelepipedal shape with an air inlet face and an opposite air outlet face, the frame receiving a predetermined number of electric heating modules in associated housing of the frame to be traversed by the flow of air to be heated, characterized in that the frame has on the air inlet and outlet faces of the frame a plurality of structural reinforcing ribs and guiding said heating modules in the associated housing frame, said ribs being oriented in a direction oblique to the direction of insertion of said heating modules in said housing.
- the oblique direction of the ribs prevents the heating modules abut against the ribs during the insertion / translation phases of said modules, unlike ribs perpendicular to the direction of insertion of the heating modules, which facilitates the assembly of the heater.
- these oblique ribs also allow a structural reinforcement of the frame by improving the torsional behavior of the frame.
- Said heater may further comprise one or more of the following features, taken separately or in combination:
- said ribs respectively have a generally "X" -shaped general shape
- the distance between two consecutive reinforcing and guiding ribs is chosen from in order to ensure continuous guidance of said heating modules
- said ribs are arranged substantially symmetrically with respect to an axis of symmetry of the frame
- said ribs form an angle of between 2 and 88 ° with said direction of insertion.
- the invention also relates to a heating and / or air conditioning device for a motor vehicle, characterized in that it comprises an electric heating device as defined above.
- FIG. 1 is a schematic partial view of a heating apparatus for a motor vehicle
- FIG. 2 illustrates an electric heating device of the apparatus of FIG. 1
- FIG. 3 represents an exemplary embodiment of a heating module of the heating device of FIG. 2;
- FIG. 4 illustrates an example of a frame for holding the heating modules of the heating device of FIG. 2,
- FIG. 5 is a partial perspective view of the frame of FIG. 4.
- Figure 1 shows a part of a heater and / or air conditioning 1 of a motor vehicle, comprising a housing 3 defining a channel 5 for the passage of the air flow to be heated.
- the channel 5 brings the air to the heating and defogging / defrosting ports 7,9 to be selectively distributed in the passenger compartment according to the mixing and distribution flaps positions 11.
- the air flow in the channel 5 is produced by a fan 13, or blower, receiving outside air or circulating air from the passenger compartment.
- the reheating of the air when necessary, is provided by an optional liquid heat exchanger 15, using the engine coolant as heat transfer liquid and by a heating device electrical 17, otherwise called electric heater.
- the exchanger 15 and the electric heater 17 are arranged in the channel 5, the first being located upstream of the second. In the absence of exchanger 15, the heating of the air is provided by the single electric heating device 17.
- such an electrical heating device 17 traversed by the flow of air to be heated comprises a heating block 19 comprising a frame 21 of generally parallelepipedal shape with two opposite faces of entry and exit of air, a control box 23 of the heating block 19, otherwise called “driver”, fixed on one side of the frame 21, and for example a heel 25 formed integrally with the frame 21 by molding on the side of the frame 21 opposite to the side carrying the control box 23.
- Such an electric heater 17 can reach high temperatures in operation, for example of the order of 150 ° C, the frame 21 is made of a material, for example plastic, capable of withstanding these high temperatures reached in operation.
- This electric heating device 17 can be in a single-zone apparatus 1, that is to say it can heat the entire cabin, or multi-zone to warm several different areas of the cabin, to separate for example the driver side of the passenger side or the demisting and heating feet.
- a separation arranged for example substantially in the middle of the frame 21 extending parallel to a longitudinal side of the frame 21 at the Al axis and optionally another arranged separation for example substantially in the middle of the frame 21 extending parallel to a lateral side of the frame 21 at the axis A2, to divide the frame 21 for example into four distinct portions front left, right front, left rear and right rear, warming respectively a separate zone associated with the passenger compartment.
- Heating of the air flow is provided by heating modules 27 arranged in housings 29 of the frame 21 so as to be traversed by the flow of air to be heated, these housings 29 being delimited in the example illustrated by walls longitudinally of the frame 21 and may be interposed between perforated zones 30 of the frame 21 to regulate the air flow.
- the number of heating modules 27 is determined as a function of the total heat output required according to the application. These heating modules 27 are arranged parallel to each other and extend over the entire length of the frame 21 of the heating block 19, so as to be exposed directly to the air flow passing through the heating block 19.
- a heating module 27 may comprise resistive elements of positive temperature coefficient (PTC) type. These elements are protected against overheating or overcurrent.
- PTC positive temperature coefficient
- a heating module 27 comprises two electrodes 31 which extend longitudinally, each enclosing a heat sink 33 formed, for example, of a pleated or corrugated metal strip and bearing against the resistive elements. or CTP stones 35.
- a heat sink 33 is not shown in full in Figure 3.
- the heat sink 33 extends the full length in the electrode 31.
- the electrodes sandwich the resistive elements while the heat sinks formed by the metal ribbon are placed against the free outer faces of said electrodes.
- the heating module 27 comprises two heat sinks which enclose two electrodes between which are placed CTP stones or resistive elements.
- the two electrodes 31 of a heating module 27 are traversed via two terminals 37 by different electrical potentials, for example a first potential available in the vehicle, such as the battery voltage, and a second potential, such as the mass.
- a first potential available in the vehicle such as the battery voltage
- a second potential such as the mass
- the frame 21 includes guide means and possibly means for holding the heating modules 27 in the housings 29 of the frame 21.
- the frame 21 comprises on its inlet faces A and air outlet B a plurality of guide ribs 39, for example of generally "X" shape, oriented in a direction oblique to the insertion direction D of the heating modules in the housings 29 of the frame 21 represented by the arrow, forming for example an angle of between 2 and 88 °.
- these guide ribs 39 also provide a structural reinforcement of the frame 21 limiting the flexibility of the frame 21 thus improving the mechanical torsional behavior of the frame 21.
- Additional ribs 41 may be provided perpendicular to the insertion direction D at the level of the frame 21. housing 29 and / or perforated zones 30 for a local reinforcement of the frame 21.
- the ribs 39 can be disposed both on either side of the housings 29 of the frame 21 to receive the heating modules 27 and on either side of the perforated zones 30 of the frame 21.
- a heating module 27 is inserted in a housing 29 of the frame 21, the point of contact between the heating module 27 moves along the rib 39 at the housing 29.
- the ribs 39 may also be arranged alternately on the air intake face A and on the air outlet face B of the frame 21. More specifically, when a first rib 39 is disposed on the inlet face of air A, the consecutive rib is disposed on the air outlet face B. In this case, the ribs 39 on the two faces A, B opposite are not vis-à-vis but are offset so as to balance the losses of charges.
- the frame 21 and the ribs 39 form a single unitary piece formed by molding a plastic material.
- the distance d is calculated to ensure the continuous guidance of the heating module 27 during its insertion.
- the ribs 39 may be arranged substantially symmetrically with respect to one or both axes A1 and A2 of symmetry of the frame 21 so as to balance the pressure losses up / down and / or left / right.
- crossing points of three consecutive "X" ribs 39 are not aligned on the same axis, these crossing points are therefore offset relative to each other in the direction perpendicular to the direction of introduction.
- one or more crossing points of ribs 39 at "X" are placed on the edge which delimits the housing 29, that is to say at the right of the wall which is at the boundary between the housing and the open area 30 contiguous. This limits the negative impact on the pressure drop that such crossover can create by superimposing it with another element of frame structure.
- one or more crossing points of ribs 39 in "X" are placed in line with the CTP stones or resistive elements of a heating module 27.
- the frame 21 may also have other additional means for guiding the heating modules 27 such as one or more projections 43 on the walls of the housings 29 extending towards the inside of the housings 29.
- the frame 21 may have flexible hooks 45, for example of generally "S" -shaped general shape serving as flexible stops against the ends of the heating modules 27.
- the frame 21 may also have flexible tabs 47 for exerting a frictional force on the heating module 27.
- the tabs 47 form a non-zero angle with respect to the insertion direction D of the heating modules 27 in the housing 29.
- the frame 21 can be fixed for example by clipping to the housing 23 and may comprise for this purpose, clipping sleeves 51 in which are inserted complementary clipping members 53 carried by the housing 23.
- This control box 23 is in turn made of a material capable of withstanding the high temperatures achieved during operation of the heating device 17 and may be formed of a housing body 23a and a cover 23b fixed to each other for example by clipping by means of clipping means 54.
- the housing 23 comprises a power supply circuit mounted on a support such as a printed circuit board and connected to a power supply source via two metal conductors 55 and 55 ', also called “ bus bars ", a first 55 can be put to the first potential, and the second 55 'to the second potential.
- the power supply circuit comprises electronic transistors (not shown) to allow or not the passage of current in the heating modules 27.
- the electric heating device 17 comprises three heating modules 27
- six terminals 57 are provided for supplying power to the six corresponding terminals 37 of the heating modules 27.
- the terminals 37 and 57 are connected by example by welding or by clinching then obtaining a clinching point 59 during the connection.
- the power supply circuit can receive information on the power to be delivered through a connector 61.
- the heel 25 opposite the housing 23 may be a heel of balance of losses of charge having openings 63 to be traversed by the flow of air to be heated.
- the structure of the frame 21 with the ribs 39 serving the for guiding the heating modules 27 during insertion into the frame 21 and for the structural reinforcement of the frame makes it easier to assemble the heating device 17 and to prevent the deterioration of the heating modules 27 which would be due to too much flexibility of the frame 21 now the heating modules 27.
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)
- Direct Air Heating By Heater Or Combustion Gas (AREA)
- Resistance Heating (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201080064690.7A CN103080665B (zh) | 2009-12-23 | 2010-12-22 | 电加热装置和对应的加热设备 |
EP10796056.9A EP2516937B1 (fr) | 2009-12-23 | 2010-12-22 | Dispositif de chauffage electrique et appareil de chauffage correspondant |
JP2012545318A JP5746212B2 (ja) | 2009-12-23 | 2010-12-22 | 電気暖房装置および対応する暖房器具 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0906300A FR2954467B1 (fr) | 2009-12-23 | 2009-12-23 | Dispositif de chauffage electrique et appareil de chauffage correspondant |
FR0906300 | 2009-12-23 |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2011076834A2 true WO2011076834A2 (fr) | 2011-06-30 |
WO2011076834A3 WO2011076834A3 (fr) | 2013-03-28 |
Family
ID=42727618
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2010/070466 WO2011076834A2 (fr) | 2009-12-23 | 2010-12-22 | Dispositif de chauffage electrique et appareil de chauffage correspondant |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP2516937B1 (fr) |
JP (1) | JP5746212B2 (fr) |
CN (1) | CN103080665B (fr) |
FR (1) | FR2954467B1 (fr) |
WO (1) | WO2011076834A2 (fr) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2019002723A1 (fr) * | 2017-06-28 | 2019-01-03 | Valeo Systemes Thermiques | Cadre d'un dispositif de chauffage électrique comprenant des plots de guidage ayant une surface inclinée |
WO2019158843A1 (fr) * | 2018-02-19 | 2019-08-22 | Valeo Systemes Thermiques | Cadre d'un dispositif de chauffage electrique comprenant au moins un dispositif de maintien elastique d'elements chauffants |
WO2020012086A1 (fr) * | 2018-07-13 | 2020-01-16 | Valeo Systemes Thermiques | Dispositif de chauffage electrique pour flux d'air a nervure biseautee pour vehicule |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP6472650B2 (ja) * | 2014-12-08 | 2019-02-20 | 株式会社日本クライメイトシステムズ | 車両用空調装置の電気式ヒータ |
JP6425525B2 (ja) * | 2014-12-08 | 2018-11-21 | 株式会社日本クライメイトシステムズ | 車両用空調装置の電気式ヒータ |
FR3062344B1 (fr) * | 2017-02-01 | 2019-06-07 | Valeo Systemes Thermiques | Cadre d'un dispositif de chauffage electrique comprenant des nervures de rigidification |
FR3068302B1 (fr) * | 2017-06-28 | 2020-05-08 | Valeo Systemes Thermiques | Dispositif de chauffage additionnel electrique et installation de chauffage, ventilation et/ou climatisation comportant un tel dispositif de chauffage additionnel |
IT201700104682A1 (it) * | 2017-09-19 | 2019-03-19 | Magneti Marelli Spa | Unita' elettronica per veicoli |
FR3078145B1 (fr) * | 2018-02-19 | 2021-10-29 | Valeo Systemes Thermiques | Cadre d'un dispositif de chauffage electrique comprenant un element deformable elastiquement |
DE102018204059A1 (de) * | 2018-03-16 | 2019-09-19 | Mahle International Gmbh | Anordnung zum Beheizen eines Fahrzeuginnenraums |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2056036A1 (fr) | 2007-10-31 | 2009-05-06 | Valeo Systemes Thermiques | Dispositif de chauffage électrique d'un flux d'air circulant a l'intérieur d'une installation de ventilation, de chauffage et/ou de climatisation d'un véhicule automobile |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3855528B2 (ja) * | 1999-03-30 | 2006-12-13 | 株式会社デンソー | 自動車用空調装置搭載構造および空調装置 |
DE19933013A1 (de) * | 1999-07-14 | 2001-02-01 | Valeo Klimasysteme Gmbh | PTC-Heizelement mit Heizzonen |
EP1253808B1 (fr) * | 2000-05-23 | 2005-12-21 | Catem GmbH & Co.KG | Dispositif de chauffage électrique, utilisé en particulier dans les véhicules |
FR2838599B1 (fr) * | 2002-04-11 | 2004-08-06 | Valeo Climatisation | Dispositif de chauffage electrique, notamment pour appareil de chauffage et ou climatisation de vehicule |
DE50300537D1 (de) * | 2003-02-28 | 2005-06-16 | Catem Gmbh & Co Kg | Elektrische Heizvorrichtung mit Heizzonen |
JP2006292330A (ja) * | 2005-04-14 | 2006-10-26 | Mitsubishi Heavy Ind Ltd | エンジン駆動式空調装置の底部構造 |
FR2895204B1 (fr) * | 2005-12-21 | 2008-06-06 | Valeo Systemes Thermiques | Optimisation d'un dispositif de chauffage |
JP4838038B2 (ja) * | 2006-04-20 | 2011-12-14 | 高砂熱学工業株式会社 | ダクト及びダクトの製造方法 |
EP1872986B1 (fr) * | 2006-06-28 | 2012-01-18 | Eberspächer catem GmbH & Co. KG | Chauffage électrique |
-
2009
- 2009-12-23 FR FR0906300A patent/FR2954467B1/fr not_active Expired - Fee Related
-
2010
- 2010-12-22 CN CN201080064690.7A patent/CN103080665B/zh active Active
- 2010-12-22 JP JP2012545318A patent/JP5746212B2/ja active Active
- 2010-12-22 EP EP10796056.9A patent/EP2516937B1/fr active Active
- 2010-12-22 WO PCT/EP2010/070466 patent/WO2011076834A2/fr active Application Filing
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2056036A1 (fr) | 2007-10-31 | 2009-05-06 | Valeo Systemes Thermiques | Dispositif de chauffage électrique d'un flux d'air circulant a l'intérieur d'une installation de ventilation, de chauffage et/ou de climatisation d'un véhicule automobile |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2019002723A1 (fr) * | 2017-06-28 | 2019-01-03 | Valeo Systemes Thermiques | Cadre d'un dispositif de chauffage électrique comprenant des plots de guidage ayant une surface inclinée |
FR3068441A1 (fr) * | 2017-06-28 | 2019-01-04 | Valeo Systemes Thermiques | Cadre d'un dispositif de chauffage electrique comprenant des plots de guidage ayant une surface inclinee |
WO2019158843A1 (fr) * | 2018-02-19 | 2019-08-22 | Valeo Systemes Thermiques | Cadre d'un dispositif de chauffage electrique comprenant au moins un dispositif de maintien elastique d'elements chauffants |
FR3078017A1 (fr) * | 2018-02-19 | 2019-08-23 | Valeo Systemes Thermiques | Cadre d'un dispositif de chauffage electrique comprenant au moins un dispositif de maintien elastique d'elements chauffants |
WO2020012086A1 (fr) * | 2018-07-13 | 2020-01-16 | Valeo Systemes Thermiques | Dispositif de chauffage electrique pour flux d'air a nervure biseautee pour vehicule |
FR3083745A1 (fr) * | 2018-07-13 | 2020-01-17 | Valeo Systemes Thermiques | Dispositif de chauffage electrique pour flux d’air a nervure biseautee pour vehicule |
Also Published As
Publication number | Publication date |
---|---|
EP2516937B1 (fr) | 2015-04-08 |
WO2011076834A3 (fr) | 2013-03-28 |
CN103080665A (zh) | 2013-05-01 |
JP2013528765A (ja) | 2013-07-11 |
FR2954467B1 (fr) | 2014-09-12 |
CN103080665B (zh) | 2016-04-06 |
EP2516937A2 (fr) | 2012-10-31 |
FR2954467A1 (fr) | 2011-06-24 |
JP5746212B2 (ja) | 2015-07-08 |
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