WO2016128397A1 - Electric heating device and air circulation duct in a ventilation, heating and/or air-conditioning system - Google Patents

Electric heating device and air circulation duct in a ventilation, heating and/or air-conditioning system Download PDF

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Publication number
WO2016128397A1
WO2016128397A1 PCT/EP2016/052724 EP2016052724W WO2016128397A1 WO 2016128397 A1 WO2016128397 A1 WO 2016128397A1 EP 2016052724 W EP2016052724 W EP 2016052724W WO 2016128397 A1 WO2016128397 A1 WO 2016128397A1
Authority
WO
WIPO (PCT)
Prior art keywords
heating
connection interface
conduit
opening
duct
Prior art date
Application number
PCT/EP2016/052724
Other languages
French (fr)
Inventor
Frédéric PIERRON
Serif KARAASLAN
Philippe KERG
Original Assignee
Valeo Systemes Thermiques
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 Valeo Systemes Thermiques filed Critical Valeo Systemes Thermiques
Priority to DE112016000677.2T priority Critical patent/DE112016000677B4/en
Publication of WO2016128397A1 publication Critical patent/WO2016128397A1/en

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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
    • B60H1/2225—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
    • 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
    • F24H3/0452—Frame constructions
    • 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
    • F24H2250/00—Electrical heat generating means
    • F24H2250/04—Positive or negative temperature coefficients, e.g. PTC, NTC

Definitions

  • the invention relates to the field of ventilation, heating and / or air conditioning of a motor vehicle. It relates to additional heating devices intended to be mounted in a ventilation system, heating and / or air conditioning of a motor vehicle.
  • the invention relates to an additional heating device comprising heating elements with electrical resistances, for example positive temperature coefficient (PTC) resistors, which make it possible to produce heat rapidly in the vehicles, especially when wants to quickly warm up the cabin.
  • PTC positive temperature coefficient
  • Heating devices of this type comprise a heating body comprising heat-exchanging heat exchange elements associated with said heating elements. These additional heating devices also comprise connection means which allow the electrical connection of the resistors to a source electrical network on board the vehicle, for the power supply of the heating elements, and connection means which allow the mechanical fixing of the device. additional heating to the ventilation, heating and / or air conditioning system.
  • a first connection interface closes the opening through which the additional heating device is inserted into the duct of the ventilation, heating and / or air conditioning system, while a second interface is disposed at the opposite end. to bear against the wall of the conduit opposite the opening.
  • the heating elements extend through the circulation of the flow and they are able to heat it. It will be understood that for each of these heating devices, an optimum level of performance is sought in the production of heat released in the heating duct. the installation, and for this purpose an optimal positioning of the heating elements across the flow of air flowing in this conduit.
  • the invention fits in this context by proposing an alternative to the heating assemblies formed of such additional devices and an air circulation duct of a ventilation, heating and / or air conditioning installation, in which it is intended to ensure the correct position of the device in the duct, to optimize the efficiency of the release of heat in the air flow passing through this duct.
  • the subject of the invention is an additional electrical heating device for heating an air flow passing through a duct of a ventilation, heating and / or air conditioning installation, comprising a housing and at least one heating module, said housing comprising a compartment for heating the at least one heating module and at one end of which is carried a first connection interface intended to connect the heating module to a power supply from the vehicle and to close an opening in the conduit of the installation ventilation, heating and / or air conditioning by which the device is inserted.
  • the housing comprises a second connection interface, which is disposed at one end of the heating compartment opposite the first connection interface and which is adapted to cooperate with a wall of the conduit opposite the said opening, at least said second interface comprising a female indexing element made on its outer face turned away from the heating compartment.
  • the female indexing element may be formed by a blind depression, hollowed out from the external face of the second connection interface, or else it may be formed by an opening passing through the second connection interface and opening into the heating compartment.
  • the second connection interface may comprise, at a transverse end, a guiding means capable of to cooperate with a second guide means integral with the conduit.
  • this guide means may consist of a clamp.
  • the invention also relates to an air flow duct of a ventilation system, heating and / or air conditioning, in which is able to be placed an additional electric heating device as just described.
  • the conduit comprises an opening for the insertion of such a device, and it comprises according to the invention a male indexing element which is arranged projecting from an inner face of a wall portion of the conduit facing the opening and which is adapted to be engaged with the female indexing element disposed on the second connection interface of the additional heating device.
  • the male indexing element may be in the form of a sleeve integral with the wall portion of the conduit.
  • the conduit may comprise a guide rail extending in the conduit from the opening to the inner face of the wall portion carrying said male indexing element, this rail forming said second guiding means adapted to cooperate with a guide means carried by the additional heating device.
  • This guide rail may have a free end which extends inside the insertion opening of the heating modules.
  • the at least one heating module extends, when it is arranged in the heating compartment, in a direction of general extension between a first end and a second end;
  • the direction of general extension of said at least one heating module is substantially longitudinal; the heating compartment extends in a direction of general extension between a first and a second end;
  • the general extension direction of the heating compartment is substantially longitudinal; -
  • the heating compartment for receiving the heating block has substantially the shape of a parallelepiped;
  • At least a portion of at least one side of the heating compartment is recessed or openwork
  • the heating compartment comprises two parallel lateral sides extending in the general direction of extension of the heating compartment and two parallel main sides extending in the general direction of extension of the heating compartment;
  • the two lateral sides of the heating compartment are substantially facing one another;
  • the two main sides of the heating compartment are substantially facing one another;
  • each of the main sides comprises at least one transverse upright connecting said lateral sides;
  • Each of the main sides comprises at least two transverse amounts distant from each other and preferably parallel;
  • each of the ends of a transverse upright is connected to a lateral side of the heating compartment;
  • the heating modules comprise at least one element capable of producing heat and at least one associated element able to exchange heat with the flow of air passing through the heating block;
  • said at least one element capable of producing heat is a resistive element; said at least one element capable of producing heat is a positive temperature coefficient (PTC) type resistive element;
  • PTC positive temperature coefficient
  • said at least one element capable of generating heat is a positive temperature coefficient (PTC) resistive element disposed in or on a support such as a bar; said at least one element capable of producing heat is a resistive element placed between two electrodes;
  • PTC positive temperature coefficient
  • said at least one associated element which is capable of exchanging heat is a radiant element
  • said at least one heat-exchanging associated element is at least one fin traversed by at least one element capable of producing heat, or interleaves such as pleated or corrugated metal ribbons arranged between elements capable of producing heat ;
  • said at least one element capable of generating heat is disposed between two elements able to exchange heat;
  • the at least one heating module comprises an element capable of producing heat disposed between two elements capable of exchanging heat;
  • the at least one heating module comprises two elements capable of producing heat and three elements capable of exchanging heat, a heat exchangeable element being disposed between two elements capable of producing heat, each of these elements heat generating means being disposed between the central heat exchangeable element and an external heat exchangeable element.
  • the housing of an electric heating device according to the invention comprises at least one means for creating a pressure drop of the air flow circulating in the location in which said housing is installed. The creation of this pressure drop advantageously makes it possible to accentuate the heat exchange between the electric heating device and the said air flow.
  • This means for creating a pressure drop can have, in particular but not exclusively, the shape of a blade, a bar, a profile, a plate.
  • the invention also relates to a ventilation, heating and / or air conditioning installation, in which a heating device as described above is able to cooperate with indexing elements carried by the duct of a ventilation, heating and ventilation system. and / or air conditioning as just seen.
  • the female indexing element carried by the second connection interface is force-fitted into a male indexing member integral with the conduit.
  • This installation may comprise a conduit which comprises a guide rail and this female indexing element carried by the second interface comprises a first transverse wall adapted to take place in a clearance strip preferably formed on the wall of the conduit against which it bears the additional heating device and defined between the male indexing element and the guide rail.
  • the first connection interface may comprise an indexing means carried by the inner face of the first connection interface to engage the free end of said guide rail.
  • FIG. 1 is a perspective view of a detail of a duct of a ventilation, heating and / or air conditioning installation suitable for receiving a additional heating device to form a ventilation assembly, heating and / or air conditioning according to the invention;
  • FIG. 2 is a view similar to that of FIG. 1, in which the additional heating device cooperating with the portion of the air circulation duct of FIG. 1 is shown;
  • FIG. 3 is a perspective view, three-quarter front, of a particular embodiment of an additional heating device adapted to cooperate with an air flow duct illustrated in Figure 1.
  • the heating assembly 2 comprises an additional heating device 4 adapted to be housed across a duct 6 of a ventilation system, heating and / or air conditioning.
  • Diagrams 1 and 2 show diagrammatically the duct 6 in the portion where an additional heating device 4 is to be accommodated.
  • the conduit 6 has a tubular shape, here of rectangular section, which has been shown diametrically opposite wall portions.
  • a first proximal wall portion 8 has an access opening 10 inside the duct 6, delimited by a raised edge 12.
  • the opening 10 delimited and extends mainly longitudinally.
  • Two fixing portions 14 are made on either side of this opening 10 in the longitudinal dimension.
  • the distal wall portion 1 6, opposite the proximal wall portion 8 carrying the opening 10, has, on its inner face 18, a sleeve 20 which projects from the wall 16 to form an element.
  • the sleeve 20 here has a section of substantially rectangular shape with two transverse walls 24, 26 and two vertical walls 28, 30.
  • the walls of the sleeve 20 are dimensioned and spaced from each other so as to cooperate with a female indexing element of the additional heating device 4 to ensure the correct positioning of the device.
  • additional heating means 4 adapted to bear against this inner face 18 of the distal wall portion 1 6 of the duct 6.
  • a guide rail 32 extends longitudinally through the conduit 6, from the distal wall portion 8 to the proximal wall portion 1 6.
  • This rail 32 has a body 34 and a guide head 36, and the rail 32 is positioned in the duct 6 so that the guide head 36 extends over the entire height of the duct 6 in a well defined longitudinally to the right of the opening 10 made in the proximal wall portion 8. Tel that this is visible in FIG. 1, the guide head 36 extends into this virtual well as it has just been defined, a free end 37 of the guide head 36 being accessible from this opening 10, while the body 34 of the guide rail 32 is recessed, so as not to interfere with the insertion of the additional heating device 4 as will be described below.
  • the guide head 36 extends the body 34 by a female shape, circular cylinder type. It is understood that, in section in a vertical and transverse plane, the guide rail 32 has the shape of a disk carried at the end of a substantially triangular base by means of a narrow junction portion.
  • the guide head 36 extends in the vicinity of a first transverse wall 24 of the sleeve 20, being noted that the head 36 is at a distance from the first transverse wall 24 while leaving a clearance strip between them.
  • an additional heating device 4 disposed in the duct 6 as just described. This device is inserted through the opening 10 formed in the proximal wall portion 8 to be driven into the conduit 6 until it is in contact with the distal wall portion 16. It can be seen in this FIG. additional heating device 4 comes in full overlap of the sleeve 20, and that it extends longitudinally along the guide rail 32.
  • the device consists in particular of a housing 38 and heating modules 40.
  • the housing 38 comprises a heating compartment 42 for receiving the heating modules 40 and two connection interfaces 44 and 46, among which a first connection interface 44, arranged at a end of the heating compartment 42 to interact with the proximal wall portion 8, and a second connection interface 46, disposed at the opposite longitudinal end of the heating compartment 42 to interact on the one hand with the distal wall portion 16 and its indexing element 22 when the device is in place in the duct 6 and on the other hand with the guiding rail 32.
  • FIGS. 2 and 3 show two alternative embodiments of an additional heating device 4, and it will be understood that other variants are conceivable, the variations being able to relate as well to the number of heating modules 40 present in the compartment. 42, and the number of heat sinks carried by each heating module 40, as on the constitution in one part (visible in Figure 3) or in several parts (visible in Figure 2) of this heating compartment 42, being understood that in each of these variants, the second connection interface 46 allows the cooperation of the device with an indexing element carried by the distal wall portion of the duct 6 of the ventilation system, heating and / or air conditioning.
  • the heating compartment 42 has a rectangular parallelepipedal shape whose two main faces are perforated to allow the diffusion in the duct 6 of the heat released by the heating modules 40 housed inside the heating compartment 42.
  • the heating compartment 42 comprises in addition to these uprights 48, at least two longitudinal walls 50, 52, parallel to each other, and among which are distinguished an upper side wall 50 and a lower side wall 52.
  • the uprights 48 extend perpendicularly to the two side walls from a respective transverse edge to connect the side walls 50, 52 therebetween.
  • the housing 38 comprises, in addition to the heating compartment 42 and the connection interfaces 44 and 46, a grooved bar 54.
  • the bar 54 may have a series of vertical grooves regularly spaced from each other from one longitudinal end of the bar 54 to the other, and perpendicular to the side wall.
  • the bar 54 extends longitudinally from one connection interface to the other, in vertical extension of the so-called upper side wall 50, and substantially in the center thereof.
  • the bar 54 has a small thickness relative to the transverse dimension of the side wall.
  • the first connection interface 44 has a dual function, namely an electrical connection function to allow the connection of the heating modules 40 to a source of electrical energy and a mechanical function to seal the opening 10 of the duct 6 by which the additional heating device 4 is inserted.
  • first plate substantially flat, which extends perpendicularly to the walls of the heating compartment 42.
  • the mechanical fixing means associated with the first connection interface 44 are carried by the first plate 56 which has at its vertical ends legs fasteners 58 in which fixing holes allow the cooperation of screwing means with the fixing drums 14, for the mechanical fixing of the additional heating device 4 with respect to the duct 6.
  • the first plate 56 has on its face internal 60, facing the heating compartment 42 and which is integral with the bar 54, a peripheral groove 62 (visible in Figure 3) wherein a seal can be positioned to ensure airtightness between inside the air conditioning installation where extends the heating compartment 42 of the device and the outside of the installation where extends the first plate 56.
  • the inner face 60 of the first plate 56 has been made visible. It may be noted that this inner face 60 comprises, inside the peripheral groove 62, an indexing means 64 whose shape is adjusted. to engage the free end 37 of the guide rail 32 when the additional heater 4 is fully depressed into the conduit 6.
  • connection means are provided here which are not visible and housed in a module 66 (visible in FIG. 2) attached to the first connection interface. 44.
  • the second interface 46 comprises a second plate 68 which extends transversely to the longitudinal walls of the heating compartment 42, and substantially parallel to the plate 56 of the first connection interface 44, and it further comprises a guide tab 70 arranged to a vertical end of the second plate 68.
  • the second interface 46 comprises a female indexing element made on the outer face 71 of the second interface 46, that is to say on the side facing the outside of the heating compartment 42.
  • the second plate 68 has a central portion 72 provided with an opening 74 giving access to the housing of the heating modules inside the heating compartment 42.
  • the opening made in the second plate 68 has a height in the vertical direction and a width in the transverse direction at least equal to the corresponding height and width of the housing, to allow the insertion of the heating modules 40 in the heating compartment 42 through this opening 74, opposite the first connection interface 44.
  • the central portion has a first transverse wall 76 in the vicinity of the guide tab 70 and a second wall transverse 78 opposite, and two vertical walls 79 connecting said transverse walls 76, 78.
  • the guide lug 70 carries complementary guide means of the guide rail 32 integral with the conduit 6. These guide means are arranged projecting from the heating compartment 42, in vertical clearance relative thereto.
  • the guide means carried by the guide tab 70 of the second interface 46 consist of a clamp 80 formed by two fingers able to surround the guide head 36 of the rail 32.
  • the guide lug 70 is positioned in the vicinity of the free end 37 of the rail 32 and the device can be introduced only if the device is correctly placed with the fingers of the clamp 80 surrounding the guide head 36.
  • a polarization means is thus formed to ensure that the device is mounted in common sense, and also forms a guide means of the device during insertion into the conduit 6 since the groove between the fingers of the clamp 80 is of a width less than the thickness of the guide head 36 of the rail 32 and that the clamp 80 can not escape, remaining in engagement along the rail 32.
  • the presence of the rail 32 as just described and the cooperating shape of the guide tab 70 are interesting in that they ensure the insertion direction of the additional heating device 4.
  • the second connection interface 46 is engaged by force in a male indexing element 22 complementary to the female shape of the opening 74 of the second interface. 46 connection.
  • the vertical and transverse dimensions of the indexing element and those of the edges of the central portion of the second interface 46 defining the opening 74 are adjusted so that the interlocking of the second interface 46 around the sleeve 20 secured to the duct 6 provides a solid attachment of the device in the duct 6.
  • the edges defining the opening engage around the transverse walls 24, 26 and vertical 28, 30 which define the sleeve 20.
  • the first transverse wall 76 of the second interface takes place in the clearance band defined between the sleeve 20 and the guide rail 32.
  • the opening in the second connection interface allows the reliable positioning, geometrically and over time, of the heating body in the duct of the installation. And it can be observed that in an embodiment similar to that of Figure 3, the opening in the second interface longitudinally passes through this interface to further allow the insertion of the heating modules in the housing.
  • object of the present invention remaining in this case always possible.

Abstract

The invention relates to an air circulation device of a ventilation, heating and/or air-conditioning system, which duct is designed to receive an additional electric heating device (4) arranged cross-wise to an air flow in the duct. The duct (6) comprises a projecting indexing element (22) arranged such that it projects from an inner surface (18) of a part of the wall (16) of the duct opposite the opening and designed to engage a recessed indexing element arranged on a connection interface of the additional heating device. The invention further relates to the device associated with the duct and to the ventilation, heating and/or air-conditioning system formed thereby.

Description

DISPOSITIF DE CHAUFFAGE ELECTRIQUE ET CONDUIT DE CIRCULATION D'AIR DANS UNE INSTALLATION DE VENTILATION, CHAUFFAGE ET/OU  ELECTRICAL HEATING DEVICE AND AIR CIRCULATION DUCT IN A VENTILATION, HEATING AND / OR
CLIMATISATION  AIR CONDITIONER
L'invention relève du domaine de la ventilation, du chauffage et/ou de la climatisation de véhicule automobile. Elle concerne les dispositifs de chauffage additionnel destinés à être montés dans une installation de ventilation, de chauffage et/ou de climatisation d'un véhicule automobile. The invention relates to the field of ventilation, heating and / or air conditioning of a motor vehicle. It relates to additional heating devices intended to be mounted in a ventilation system, heating and / or air conditioning of a motor vehicle.
Plus particulièrement, l'invention concerne un dispositif de chauffage additionnel comportant des éléments chauffants à résistances électriques, par exemple des résistances à coefficient de température positif (CTP), qui permettent de produire rapidement de la chaleur dans les véhicules, notamment lorsque l'on souhaite chauffer rapidement l'habitacle. More particularly, the invention relates to an additional heating device comprising heating elements with electrical resistances, for example positive temperature coefficient (PTC) resistors, which make it possible to produce heat rapidly in the vehicles, especially when wants to quickly warm up the cabin.
Des dispositifs de chauffage de ce type comportent un corps de chauffe comprenant des éléments d'échange thermique pouvant diffuser de la chaleur, associés auxdits éléments chauffants. Ces dispositifs de chauffage additionnel comportent également des moyens de connexion qui permettent le raccordement électrique des résistances à un réseau électrique source embarqué sur le véhicule, pour l'alimentation électrique des éléments chauffants, et des moyens de connexion qui permettent la fixation mécanique du dispositif de chauffage additionnel à l'installation de ventilation, de chauffage et/ou de climatisation. Heating devices of this type comprise a heating body comprising heat-exchanging heat exchange elements associated with said heating elements. These additional heating devices also comprise connection means which allow the electrical connection of the resistors to a source electrical network on board the vehicle, for the power supply of the heating elements, and connection means which allow the mechanical fixing of the device. additional heating to the ventilation, heating and / or air conditioning system.
Une première interface de connexion réalise la fermeture de l'ouverture par laquelle le dispositif de chauffage additionnel est inséré dans le conduit de l'installation de ventilation, chauffage et/ou climatisation, tandis qu'une deuxième interface est disposée à l'extrémité opposée pour venir en appui contre la paroi du conduit opposée à l'ouverture. De la sorte, les éléments chauffant s'étendent à travers la circulation du flux et ils sont à même de chauffer celui-ci. On comprend que pour chacun de ces dispositifs de chauffage, on recherche un niveau de performance optimale en production de chaleur dégagée dans le conduit de l'installation, et pour ce faire un positionnement optimal des éléments chauffants en travers du flux d'air circulant dans ce conduit. A first connection interface closes the opening through which the additional heating device is inserted into the duct of the ventilation, heating and / or air conditioning system, while a second interface is disposed at the opposite end. to bear against the wall of the conduit opposite the opening. In this way, the heating elements extend through the circulation of the flow and they are able to heat it. It will be understood that for each of these heating devices, an optimum level of performance is sought in the production of heat released in the heating duct. the installation, and for this purpose an optimal positioning of the heating elements across the flow of air flowing in this conduit.
L'invention s'inscrit dans ce contexte en proposant une alternative aux ensembles de chauffages formés de tels dispositifs additionnels et d'un conduit de circulation d'air d'une installation de ventilation, chauffage et/ou climatisation, dans laquelle on vise à assurer la position correcte du dispositif dans le conduit, pour optimiser l'efficacité du dégagement de chaleur dans le flux d'air traversant ce conduit. The invention fits in this context by proposing an alternative to the heating assemblies formed of such additional devices and an air circulation duct of a ventilation, heating and / or air conditioning installation, in which it is intended to ensure the correct position of the device in the duct, to optimize the efficiency of the release of heat in the air flow passing through this duct.
L'invention a pour objet un dispositif de chauffage additionnel électrique pour chauffer un flux d'air traversant un conduit d'une installation de ventilation, chauffage et/ou climatisation, comportant un boîtier et au moins un module chauffant, ledit boîtier comportant un compartiment de chauffe du au moins un module chauffant et à une extrémité duquel est portée une première interface de connexion destinée à relier le module chauffant à une alimentation électrique en provenance du véhicule et à réaliser la fermeture d'une ouverture dans le conduit de l'installation de ventilation, chauffage et/ou climatisation par laquelle le dispositif est inséré. Selon l'invention, le boîtier comporte une deuxième interface de connexion, qui est disposée à une extrémité du compartiment de chauffe à l'opposé de la première interface de connexion et qui est apte à coopérer avec une paroi du conduit à l'opposé de ladite ouverture, au moins ladite deuxième interface comportant un élément d'indexage femelle réalisé sur sa face externe tournée à l'opposé du compartiment de chauffe. The subject of the invention is an additional electrical heating device for heating an air flow passing through a duct of a ventilation, heating and / or air conditioning installation, comprising a housing and at least one heating module, said housing comprising a compartment for heating the at least one heating module and at one end of which is carried a first connection interface intended to connect the heating module to a power supply from the vehicle and to close an opening in the conduit of the installation ventilation, heating and / or air conditioning by which the device is inserted. According to the invention, the housing comprises a second connection interface, which is disposed at one end of the heating compartment opposite the first connection interface and which is adapted to cooperate with a wall of the conduit opposite the said opening, at least said second interface comprising a female indexing element made on its outer face turned away from the heating compartment.
Selon deux variantes de réalisation de l'invention, on pourra prévoir que l'élément d'indexage femelle est formé par une dépression borgne, creusée à partir de la face externe de la deuxième interface de connexion, ou bien qu'il est formé par une ouverture traversant la deuxième interface de connexion et débouchant dans le compartiment de chauffe. According to two alternative embodiments of the invention, provision may be made for the female indexing element to be formed by a blind depression, hollowed out from the external face of the second connection interface, or else it may be formed by an opening passing through the second connection interface and opening into the heating compartment.
Selon une caractéristique complémentaire, la deuxième interface de connexion peut comporter, à une extrémité transversale, un moyen de guidage apte à coopérer avec un deuxième moyen de guidage solidaire du conduit. Et ce moyen de guidage peut consister en une pince. According to a complementary feature, the second connection interface may comprise, at a transverse end, a guiding means capable of to cooperate with a second guide means integral with the conduit. And this guide means may consist of a clamp.
L'invention vise également un conduit de circulation d'air d'une installation de ventilation, chauffage et/ou climatisation, dans lequel est apte à être placé un dispositif de chauffage additionnel électrique tel qu'il vient d'être décrit. Le conduit comporte une ouverture pour l'insertion d'un tel dispositif, et il comporte selon l'invention un élément d'indexage mâle qui est disposé en saillie d'une face interne d'une portion de paroi du conduit en regard de l'ouverture et qui est apte à être en prise avec l'élément d'indexage femelle disposé sur la deuxième interface de connexion du dispositif de chauffage additionnel. The invention also relates to an air flow duct of a ventilation system, heating and / or air conditioning, in which is able to be placed an additional electric heating device as just described. The conduit comprises an opening for the insertion of such a device, and it comprises according to the invention a male indexing element which is arranged projecting from an inner face of a wall portion of the conduit facing the opening and which is adapted to be engaged with the female indexing element disposed on the second connection interface of the additional heating device.
L'élément d'indexage mâle peut présenter la forme d'un manchon venu de matière avec la portion de paroi du conduit. The male indexing element may be in the form of a sleeve integral with the wall portion of the conduit.
Par ailleurs, selon une caractéristique secondaire, le conduit peut comporter un rail de guidage s'étendant dans le conduit depuis l'ouverture jusqu'à la face interne de la portion de paroi portant ledit élément d'indexage mâle, ce rail formant ledit deuxième moyen de guidage apte à coopérer avec un moyen de guidage porté par le dispositif de chauffage additionnel. Ce rail de guidage peut présenter une extrémité libre qui s'étend à l'intérieur de l'ouverture d'insertion des modules chauffants. Le boîtier du dispositif de chauffage additionnel électrique selon l'invention peut comporter en outre une ou plusieurs des caractéristiques suivantes, seules ou en combinaison : Furthermore, according to a secondary characteristic, the conduit may comprise a guide rail extending in the conduit from the opening to the inner face of the wall portion carrying said male indexing element, this rail forming said second guiding means adapted to cooperate with a guide means carried by the additional heating device. This guide rail may have a free end which extends inside the insertion opening of the heating modules. The housing of the additional electrical heating device according to the invention may further comprise one or more of the following characteristics, alone or in combination:
- le au moins un module chauffant s'étend, lorsqu'il est disposé dans le compartiment de chauffe, selon une direction d'extension générale entre une première extrémité et une deuxième extrémité ; the at least one heating module extends, when it is arranged in the heating compartment, in a direction of general extension between a first end and a second end;
- la direction d'extension générale dudit au moins un module chauffant est sensiblement longitudinale ; - le compartiment de chauffe s'étend selon une direction d'extension générale entre une première et une deuxième extrémité ; the direction of general extension of said at least one heating module is substantially longitudinal; the heating compartment extends in a direction of general extension between a first and a second end;
- la direction d'extension générale du compartiment de chauffe est sensiblement longitudinale ; - le compartiment de chauffe destiné à recevoir le bloc de chauffe présente sensiblement la forme d'un parallélépipède ; the general extension direction of the heating compartment is substantially longitudinal; - The heating compartment for receiving the heating block has substantially the shape of a parallelepiped;
- au moins une partie d'au moins un côté du compartiment de chauffe est évidée ou ajourée ; - At least a portion of at least one side of the heating compartment is recessed or openwork;
- le compartiment de chauffe comporte deux côtés latéraux parallèles s'étendant selon la direction d'extension générale du compartiment de chauffe et deux côtés principaux parallèles s'étendant selon la direction d'extension générale du compartiment de chauffe ; the heating compartment comprises two parallel lateral sides extending in the general direction of extension of the heating compartment and two parallel main sides extending in the general direction of extension of the heating compartment;
- ces deux côtés latéraux sont matérialisés par des parois ; these two lateral sides are materialized by walls;
- les deux côtés latéraux du compartiment de chauffe sont sensiblement en regard l'un de l'autre ; the two lateral sides of the heating compartment are substantially facing one another;
- les deux côtés principaux du compartiment de chauffe sont sensiblement en regard l'un de l'autre ; - The two main sides of the heating compartment are substantially facing one another;
- les côtés latéraux s'étendent sensiblement perpendiculairement aux côtés principaux ; - chacun des côtés principaux comporte au moins un montant transversal reliant lesdits côtés latéraux ; the lateral sides extend substantially perpendicularly to the main sides; each of the main sides comprises at least one transverse upright connecting said lateral sides;
- chacune des côtés principaux comporte au moins deux montants transversaux distants les uns des autres et préférentiellement parallèles ; - Each of the main sides comprises at least two transverse amounts distant from each other and preferably parallel;
- chacune des extrémités d'un montant transversal est reliée à un côté latéral du compartiment de chauffe ; - les modules chauffants comportent au moins un élément apte à produire de la chaleur et au moins un élément associé apte à échanger de la chaleur avec le flux d'air traversant le bloc de chauffe ; each of the ends of a transverse upright is connected to a lateral side of the heating compartment; the heating modules comprise at least one element capable of producing heat and at least one associated element able to exchange heat with the flow of air passing through the heating block;
- ledit au moins un élément apte à produire de la chaleur est un élément résistif ; - ledit au moins un élément apte à produire de la chaleur est un élément résistif de type à coefficient de température positif (CTP) ; said at least one element capable of producing heat is a resistive element; said at least one element capable of producing heat is a positive temperature coefficient (PTC) type resistive element;
- ledit au moins un élément apte à produire de la chaleur est un élément résistif de type à coefficient de température positif (CTP) disposé dans ou sur un support tel qu'un barreau ; - ledit au moins un élément apte à produire de la chaleur est un élément résistif disposé entre deux électrodes ; said at least one element capable of generating heat is a positive temperature coefficient (PTC) resistive element disposed in or on a support such as a bar; said at least one element capable of producing heat is a resistive element placed between two electrodes;
- ledit au moins un élément associé qui est apte à échanger de la chaleur est un élément radiant ; said at least one associated element which is capable of exchanging heat is a radiant element;
- ledit au moins un élément associé apte à échanger de la chaleur est au moins une ailette traversée par au moins un élément apte à produire de la chaleur, ou encore des intercalaires tels que des rubans métalliques plissés ou ondulés disposés entre des éléments aptes à produire de la chaleur ; said at least one heat-exchanging associated element is at least one fin traversed by at least one element capable of producing heat, or interleaves such as pleated or corrugated metal ribbons arranged between elements capable of producing heat ;
- ledit au moins un élément apte à produire de la chaleur est disposé entre deux éléments aptes à échanger de la chaleur ; - le au moins un module chauffant comporte un élément apte à produire de la chaleur disposé entre deux éléments aptes à échanger de la chaleur ; said at least one element capable of generating heat is disposed between two elements able to exchange heat; the at least one heating module comprises an element capable of producing heat disposed between two elements capable of exchanging heat;
- le au moins un module chauffant comporte deux éléments aptes à produire de la chaleur et trois éléments aptes à échanger de la chaleur, un élément apte à échanger de la chaleur étant disposé entre deux éléments aptes à produire de la chaleur, chacun de ces éléments aptes à produire de la chaleur étant disposé entre l'élément central apte à échanger de la chaleur et un élément externe apte à échanger de la chaleur. Selon une caractéristique possible, le boîtier d'un dispositif de chauffage électrique selon l'invention comporte au moins un moyen permettant de créer une perte de charge du flux d'air circulant dans l'emplacement dans lequel ledit boîtier est installé. La création de cette perte de charge permet avantageusement d'accentuer l'échange de chaleur entre le dispositif de chauffage électrique et ledit flux d'air. the at least one heating module comprises two elements capable of producing heat and three elements capable of exchanging heat, a heat exchangeable element being disposed between two elements capable of producing heat, each of these elements heat generating means being disposed between the central heat exchangeable element and an external heat exchangeable element. According to a possible characteristic, the housing of an electric heating device according to the invention comprises at least one means for creating a pressure drop of the air flow circulating in the location in which said housing is installed. The creation of this pressure drop advantageously makes it possible to accentuate the heat exchange between the electric heating device and the said air flow.
Ce moyen permettant de créer une perte de charge peut présenter, notamment mais non exclusivement, la forme d'une lame, d'une barrette, d'un profilé, d'une plaque. L'invention concerne également une installation de ventilation, chauffage et/ou climatisation, dans laquelle un dispositif de chauffage tel que décrit ci-dessus est apte à coopérer avec des éléments d'indexage portés par le conduit d'une installation de ventilation, chauffage et/ou climatisation tel qu'il vient d'être vu. This means for creating a pressure drop can have, in particular but not exclusively, the shape of a blade, a bar, a profile, a plate. The invention also relates to a ventilation, heating and / or air conditioning installation, in which a heating device as described above is able to cooperate with indexing elements carried by the duct of a ventilation, heating and ventilation system. and / or air conditioning as just seen.
Dans cette installation, on peut prévoir que l'élément d'indexage femelle porté par la deuxième interface de connexion est emboîté à force dans un élément mâle d'indexage solidaire du conduit. Cette installation peut comprendre un conduit qui comporte un rail de guidage et cet élément d'indexage femelle porté par la deuxième interface comporte une première paroi transversale apte à prendre place dans une bande de dégagement formée préférentiellement sur la paroi du conduit contre laquelle vient en appui le dispositif de chauffage additionnel et définie entre l'élément d'indexage mâle et le rail de guidage. In this installation, it can be provided that the female indexing element carried by the second connection interface is force-fitted into a male indexing member integral with the conduit. This installation may comprise a conduit which comprises a guide rail and this female indexing element carried by the second interface comprises a first transverse wall adapted to take place in a clearance strip preferably formed on the wall of the conduit against which it bears the additional heating device and defined between the male indexing element and the guide rail.
La première interface de connexion peut comporter un moyen d'indexage porté par la face interne de la première interface de connexion pour venir en prise sur l'extrémité libre dudit rail de guidage. D'autres caractéristiques et avantages de la présente invention apparaîtront plus clairement à l'aide de la description et des dessins parmi lesquels : The first connection interface may comprise an indexing means carried by the inner face of the first connection interface to engage the free end of said guide rail. Other features and advantages of the present invention will emerge more clearly from the description and the drawings, among which:
- la figure 1 est une vue en perspective d'un détail d'un conduit d'une installation de ventilation, chauffage et/ou climatisation apte à recevoir un dispositif de chauffage additionnel pour former un ensemble de ventilation, chauffage et/ou climatisation selon l'invention ; FIG. 1 is a perspective view of a detail of a duct of a ventilation, heating and / or air conditioning installation suitable for receiving a additional heating device to form a ventilation assembly, heating and / or air conditioning according to the invention;
- la figure 2 est une vue similaire à celle de la figure 1 , dans laquelle on a représenté le dispositif de chauffage additionnel coopérant avec la portion de conduit de circulation d'air de la figure 1 ; FIG. 2 is a view similar to that of FIG. 1, in which the additional heating device cooperating with the portion of the air circulation duct of FIG. 1 is shown;
- et la figure 3 est une vue en perspective, de trois-quarts avant, d'un mode de réalisation particulier d'un dispositif de chauffage additionnel apte à coopérer avec un conduit de circulation d'air illustré sur la figure 1 . - And Figure 3 is a perspective view, three-quarter front, of a particular embodiment of an additional heating device adapted to cooperate with an air flow duct illustrated in Figure 1.
Dans la description qui va suivre, on se référera à une orientation fonction des axes Longitudinaux, Verticaux et Transversaux tels qu'ils sont définis arbitrairement par le trièdre L,V,T représenté sur les figures. Le choix des appellations de ces axes n'est pas limitatif de l'orientation que peut prendre le dispositif dans son application à un véhicule automobile, et l'utilisation de termes tels que « supérieur » et « inférieur » est choisie en fonction de l'orientation dans l'illustration accompagnant cette description sans qu'elle soit non plus limitative. In the description which follows, reference will be made to an orientation function of the Longitudinal, Vertical and Transversal axes as arbitrarily defined by the trihedron L, V, T shown in the figures. The choice of designations of these axes is not limiting of the orientation that can take the device in its application to a motor vehicle, and the use of terms such as "superior" and "lower" is chosen according to the orientation in the illustration accompanying this description without it being either limiting.
L'ensemble de chauffage 2 selon l'invention comporte un dispositif de chauffage additionnel 4 apte à venir se loger en travers d'un conduit 6 d'une installation de ventilation, chauffage et/ou climatisation. The heating assembly 2 according to the invention comprises an additional heating device 4 adapted to be housed across a duct 6 of a ventilation system, heating and / or air conditioning.
On a représenté schématiquement, sur les figures 1 et 2, le conduit 6 dans la portion où un dispositif de chauffage additionnel 4 doit être logé. Diagrams 1 and 2 show diagrammatically the duct 6 in the portion where an additional heating device 4 is to be accommodated.
Tel qu'illustré sur la figure 1 , le conduit 6 présente une forme tubulaire, ici de section rectangulaire, dont on a représenté des portions de paroi diamétralement opposées. Une première portion de paroi proximale 8 comporte une ouverture 10 d'accès à l'intérieur du conduit 6, délimitée par un bord relevé 12. L'ouverture 10 délimitée ainsi s'étend principalement longitudinalement. Deux futs de fixation 14 sont réalisés de part et d'autre de cette ouverture 10 dans la dimension longitudinale. La portion de paroi distale 1 6, à l'opposé de la portion de paroi proximale 8 portant l'ouverture 10, présente, sur sa face interne 18, un manchon 20 qui s'étend en saillie de la paroi 16 pour former un élément d'indexage mâle 22. Le manchon 20 présente ici une section de forme sensiblement rectangulaire avec deux parois transversales 24, 26 et deux parois verticales 28, 30. As shown in Figure 1, the conduit 6 has a tubular shape, here of rectangular section, which has been shown diametrically opposite wall portions. A first proximal wall portion 8 has an access opening 10 inside the duct 6, delimited by a raised edge 12. The opening 10 delimited and extends mainly longitudinally. Two fixing portions 14 are made on either side of this opening 10 in the longitudinal dimension. The distal wall portion 1 6, opposite the proximal wall portion 8 carrying the opening 10, has, on its inner face 18, a sleeve 20 which projects from the wall 16 to form an element. The sleeve 20 here has a section of substantially rectangular shape with two transverse walls 24, 26 and two vertical walls 28, 30.
Tel que cela sera décrit ci-après, les parois du manchon 20 sont dimensionnées et écartées les unes des autres de manière à coopérer avec un élément d'indexage femelle du dispositif de chauffage additionnel 4 afin d'assurer la mise en position correcte du dispositif de chauffage additionnel 4 apte à venir en appui contre cette face interne 18 de la portion de paroi distale 1 6 du conduit 6. As will be described hereinafter, the walls of the sleeve 20 are dimensioned and spaced from each other so as to cooperate with a female indexing element of the additional heating device 4 to ensure the correct positioning of the device. additional heating means 4 adapted to bear against this inner face 18 of the distal wall portion 1 6 of the duct 6.
Par ailleurs, un rail de guidage 32 s'étend longitudinalement à travers le conduit 6, de la portion de paroi distale 8 à la portion de paroi proximale 1 6. Ce rail 32 comporte un corps 34 et une tête de guidage 36, et le rail 32 est positionné dans le conduit 6 de manière à ce que la tête de guidage 36 s'étende sur toute la hauteur du conduit 6 dans un puits défini longitudinalement au droit de l'ouverture 10 réalisée dans la portion de paroi proximale 8. Tel que cela est visible sur la figure 1 , la tête de guidage 36 s'étend dans ce puits virtuel tel qu'il vient d'être défini, une extrémité libre 37 de la tête de guidage 36 étant accessible depuis cette ouverture 10, tandis que le corps 34 du rail de guidage 32 est en retrait, de manière à ne pas gêner l'insertion du dispositif de chauffage additionnel 4 tel que cela sera décrit ci-après. Furthermore, a guide rail 32 extends longitudinally through the conduit 6, from the distal wall portion 8 to the proximal wall portion 1 6. This rail 32 has a body 34 and a guide head 36, and the rail 32 is positioned in the duct 6 so that the guide head 36 extends over the entire height of the duct 6 in a well defined longitudinally to the right of the opening 10 made in the proximal wall portion 8. Tel that this is visible in FIG. 1, the guide head 36 extends into this virtual well as it has just been defined, a free end 37 of the guide head 36 being accessible from this opening 10, while the body 34 of the guide rail 32 is recessed, so as not to interfere with the insertion of the additional heating device 4 as will be described below.
Dans l'exemple illustré sur la figure 1 , la tête de guidage 36 prolonge le corps 34 par une forme femelle, de type cylindre de section circulaire. On comprend que, en section dans un plan vertical et transversal, le rail de guidage 32 présente la forme d'un disque porté en bout d'une base de forme sensiblement triangulaire par l'intermédiaire d'une portion de jonction étroite. In the example illustrated in Figure 1, the guide head 36 extends the body 34 by a female shape, circular cylinder type. It is understood that, in section in a vertical and transverse plane, the guide rail 32 has the shape of a disk carried at the end of a substantially triangular base by means of a narrow junction portion.
La tête de guidage 36 s'étend au voisinage d'une première paroi transversale 24 du manchon 20, étant noté que la tête 36 est à distance de la première paroi transversale 24 en laissant entre elles une bande de dégagement. Sur la figure 2, on a illustré un dispositif de chauffage additionnel 4 disposé dans le conduit 6 tel qu'il vient d'être décrit. Ce dispositif est inséré par l'ouverture 10 formée dans la portion de paroi proximale 8 pour être enfoncé dans le conduit 6 jusqu'à ce qu'il soit en contact de la portion de paroi distale 16. On observe sur cette figure 2 que le dispositif de chauffage additionnel 4 vient en recouvrement intégral du manchon 20, et qu'il s'étend longitudinalement le long du rail de guidage 32. The guide head 36 extends in the vicinity of a first transverse wall 24 of the sleeve 20, being noted that the head 36 is at a distance from the first transverse wall 24 while leaving a clearance strip between them. In Figure 2, there is illustrated an additional heating device 4 disposed in the duct 6 as just described. This device is inserted through the opening 10 formed in the proximal wall portion 8 to be driven into the conduit 6 until it is in contact with the distal wall portion 16. It can be seen in this FIG. additional heating device 4 comes in full overlap of the sleeve 20, and that it extends longitudinally along the guide rail 32.
Le dispositif consiste notamment en un boîtier 38 et des modules chauffants 40. Le boîtier 38 comporte un compartiment de chauffe 42 de réception des modules chauffants 40 et deux interfaces de connexion 44 et 46, parmi lesquelles une première interface de connexion 44, disposée à une extrémité du compartiment de chauffe 42 pour interagir avec la portion de paroi proximale 8, et une deuxième interface de connexion 46, disposée à l'extrémité longitudinale opposée du compartiment de chauffe 42 pour interagir d'une part avec la portion de paroi distale 1 6 et son élément d'indexage 22 lorsque le dispositif est en place dans le conduit 6 et d'autre part avec le rail de guidage 32. The device consists in particular of a housing 38 and heating modules 40. The housing 38 comprises a heating compartment 42 for receiving the heating modules 40 and two connection interfaces 44 and 46, among which a first connection interface 44, arranged at a end of the heating compartment 42 to interact with the proximal wall portion 8, and a second connection interface 46, disposed at the opposite longitudinal end of the heating compartment 42 to interact on the one hand with the distal wall portion 16 and its indexing element 22 when the device is in place in the duct 6 and on the other hand with the guiding rail 32.
On a représenté sur les figures 2 et 3 deux variantes de réalisation d'un dispositif de chauffage additionnel 4, et on comprend que d'autres variantes sont envisageables, les variations pouvant porter aussi bien sur le nombre de modules chauffants 40 présents dans le compartiment de chauffe 42, et le nombre de dissipateurs thermiques portés par chaque module chauffant 40, que sur la constitution en une partie (visible sur la figure 3) ou en plusieurs parties (visible sur la figure 2) de ce compartiment de chauffe 42, étant entendu que dans chacune de ces variantes, la deuxième interface de connexion 46 permet la coopération du dispositif avec un élément d'indexage porté par la portion de paroi distale du conduit 6 de l'installation de ventilation, chauffage et/ou climatisation. FIGS. 2 and 3 show two alternative embodiments of an additional heating device 4, and it will be understood that other variants are conceivable, the variations being able to relate as well to the number of heating modules 40 present in the compartment. 42, and the number of heat sinks carried by each heating module 40, as on the constitution in one part (visible in Figure 3) or in several parts (visible in Figure 2) of this heating compartment 42, being understood that in each of these variants, the second connection interface 46 allows the cooperation of the device with an indexing element carried by the distal wall portion of the duct 6 of the ventilation system, heating and / or air conditioning.
Le compartiment de chauffe 42 présente une forme de parallélépipède rectangle dont les deux faces principales sont ajourées pour permettre la diffusion dans le conduit 6 de la chaleur dégagée par les modules chauffants 40 logés à l'intérieur du compartiment de chauffe 42. Des montants 48, disposés à intervalles, réguliers ou non, les uns des autres, s'étendent verticalement sur toute la hauteur de ces faces principales afin de rigidifier l'ensemble sans pénaliser le dégagement de chaleur. The heating compartment 42 has a rectangular parallelepipedal shape whose two main faces are perforated to allow the diffusion in the duct 6 of the heat released by the heating modules 40 housed inside the heating compartment 42. Amounts 48, arranged at intervals, regular or otherwise, from each other, extend vertically over the entire height these main faces to stiffen the whole without penalizing the release of heat.
Le compartiment de chauffe 42 comporte outre ces montants 48, au moins deux parois longitudinales 50, 52, parallèles entre elles, et parmi lesquelles on distingue une paroi latérale supérieure 50 et une paroi latérale inférieure 52. Les montants 48 prolongent perpendiculairement les deux parois latérales depuis un bord transversal respectif pour relier les parois latérales 50, 52 entre elles. The heating compartment 42 comprises in addition to these uprights 48, at least two longitudinal walls 50, 52, parallel to each other, and among which are distinguished an upper side wall 50 and a lower side wall 52. The uprights 48 extend perpendicularly to the two side walls from a respective transverse edge to connect the side walls 50, 52 therebetween.
Sur la figure 3, le boîtier 38 comporte, outre le compartiment de chauffe 42 et les interfaces de connexion 44 et 46, une barrette 54 rainurée. La barrette 54 peut présenter une série de rainures verticales, régulièrement espacées les unes des autres depuis une extrémité longitudinale de la barrette 54 à l'autre, et perpendiculaires à la paroi latérale. La barrette 54 s'étend longitudinalement d'une interface de connexion à l'autre, en prolongement vertical de la paroi latérale dite supérieure 50, et sensiblement au centre de celle-ci. La barrette 54 présente une faible épaisseur par rapport à la dimension transversale de la paroi latérale. In FIG. 3, the housing 38 comprises, in addition to the heating compartment 42 and the connection interfaces 44 and 46, a grooved bar 54. The bar 54 may have a series of vertical grooves regularly spaced from each other from one longitudinal end of the bar 54 to the other, and perpendicular to the side wall. The bar 54 extends longitudinally from one connection interface to the other, in vertical extension of the so-called upper side wall 50, and substantially in the center thereof. The bar 54 has a small thickness relative to the transverse dimension of the side wall.
La première interface de connexion 44 présente une double fonction, à savoir une fonction de connexion électrique pour permettre le raccordement des modules chauffants 40 à une source d'énergie électrique et une fonction mécanique pour fermer de façon étanche l'ouverture 10 du conduit 6 par laquelle le dispositif de chauffage additionnel 4 est inséré. The first connection interface 44 has a dual function, namely an electrical connection function to allow the connection of the heating modules 40 to a source of electrical energy and a mechanical function to seal the opening 10 of the duct 6 by which the additional heating device 4 is inserted.
Elle comporte une première platine 56 sensiblement plane, qui s'étend perpendiculairement aux parois du compartiment de chauffe 42. Les moyens de fixation mécanique associés à la première interface de connexion 44 sont portés par la première platine 56 qui présente à ses extrémités verticales des pattes de fixation 58 dans lesquelles des trous de fixation permettent la coopération de moyens de vissage avec les fûts de fixation 14, pour la fixation mécanique du dispositif de chauffage additionnel 4 par rapport au conduit 6. Par ailleurs, la première platine 56 comporte sur sa face interne 60, tournée vers le compartiment de chauffe 42 et qui est solidaire de la barrette 54, une rainure périphérique 62 (visible sur la figure 3) dans laquelle un joint peut être positionné de sorte à assurer l'étanchéité à l'air entre l'intérieur de l'installation de climatisation où s'étend le compartiment de chauffe 42 du dispositif et l'extérieur de l'installation où s'étend la première platine 56. It comprises a first plate substantially flat, which extends perpendicularly to the walls of the heating compartment 42. The mechanical fixing means associated with the first connection interface 44 are carried by the first plate 56 which has at its vertical ends legs fasteners 58 in which fixing holes allow the cooperation of screwing means with the fixing drums 14, for the mechanical fixing of the additional heating device 4 with respect to the duct 6. Furthermore, the first plate 56 has on its face internal 60, facing the heating compartment 42 and which is integral with the bar 54, a peripheral groove 62 (visible in Figure 3) wherein a seal can be positioned to ensure airtightness between inside the air conditioning installation where extends the heating compartment 42 of the device and the outside of the installation where extends the first plate 56.
Sur la figure 3, on a rendu visible la face interne 60 de la première platine 56. On peut noter que cette face interne 60 comporte, à l'intérieur de la rainure périphérique 62, un moyen d'indexage 64 dont la forme est ajustée pour venir en prise sur l'extrémité libre 37 du rail de guidage 32 lorsque le dispositif de chauffage additionnel 4 est intégralement enfoncé dans le conduit 6. In FIG. 3, the inner face 60 of the first plate 56 has been made visible. It may be noted that this inner face 60 comprises, inside the peripheral groove 62, an indexing means 64 whose shape is adjusted. to engage the free end 37 of the guide rail 32 when the additional heater 4 is fully depressed into the conduit 6.
Afin de réaliser la connexion électrique des électrodes associées aux modules chauffants 40 à un réseau électrique source du véhicule, on prévoit des moyens de raccordement ici non visibles et logés dans un module 66 (visible sur la figure 2) rapporté sur la première interface de connexion 44. In order to make the electrical connection of the electrodes associated with the heating modules 40 to a source electrical network of the vehicle, connection means are provided here which are not visible and housed in a module 66 (visible in FIG. 2) attached to the first connection interface. 44.
La deuxième interface 46 comporte une deuxième platine 68 qui s'étend transversalement aux parois longitudinales du compartiment de chauffe 42, et sensiblement parallèlement à la platine 56 de la première interface de connexion 44, et elle comporte en outre une patte de guidage 70 disposée à une extrémité verticale de la deuxième platine 68. The second interface 46 comprises a second plate 68 which extends transversely to the longitudinal walls of the heating compartment 42, and substantially parallel to the plate 56 of the first connection interface 44, and it further comprises a guide tab 70 arranged to a vertical end of the second plate 68.
Selon l'invention, la deuxième interface 46 comporte un élément d'indexage femelle réalisé sur la face externe 71 de la deuxième interface 46, c'est-à-dire sur la face tournée vers l'extérieur du compartiment de chauffe 42. Tel que cela est visible sur la figure 3, la deuxième platine 68 présente une partie centrale 72 munie d'une ouverture 74 donnant accès au logement des modules chauffants à l'intérieur du compartiment de chauffe 42. L'ouverture réalisée dans la deuxième platine 68 présente une hauteur dans la direction verticale et une largeur dans la direction transversale au moins égales à la hauteur et la largeur correspondantes du logement, pour permettre l'insertion des modules chauffants 40 dans le compartiment de chauffe 42 par cette ouverture 74, opposée à la première interface de connexion 44. La partie centrale comporte une première paroi transversale 76 au voisinage de la patte de guidage 70 et une deuxième paroi transversale 78 opposée, ainsi que deux parois verticales 79 reliant les dites parois transversales 76, 78. According to the invention, the second interface 46 comprises a female indexing element made on the outer face 71 of the second interface 46, that is to say on the side facing the outside of the heating compartment 42. Tel that this is visible in FIG. 3, the second plate 68 has a central portion 72 provided with an opening 74 giving access to the housing of the heating modules inside the heating compartment 42. The opening made in the second plate 68 has a height in the vertical direction and a width in the transverse direction at least equal to the corresponding height and width of the housing, to allow the insertion of the heating modules 40 in the heating compartment 42 through this opening 74, opposite the first connection interface 44. The central portion has a first transverse wall 76 in the vicinity of the guide tab 70 and a second wall transverse 78 opposite, and two vertical walls 79 connecting said transverse walls 76, 78.
La patte de guidage 70 porte des moyens de guidage complémentaires du rail de guidage 32 solidaire du conduit 6. Ces moyens de guidage sont disposés en saillie du compartiment de chauffe 42, en dégagement vertical par rapport à celui-ci. Dans les exemples illustrés sur les figures 2 et 3, les moyens de guidage portés par la patte de guidage 70 de la deuxième interface 46 consistent en une pince 80 formée par deux doigts aptes à entourer la tête de guidage 36 du rail 32. The guide lug 70 carries complementary guide means of the guide rail 32 integral with the conduit 6. These guide means are arranged projecting from the heating compartment 42, in vertical clearance relative thereto. In the examples illustrated in FIGS. 2 and 3, the guide means carried by the guide tab 70 of the second interface 46 consist of a clamp 80 formed by two fingers able to surround the guide head 36 of the rail 32.
On comprend que, lors de l'insertion du dispositif dans le conduit 6 de l'installation de ventilation, chauffage et/ou climatisation par l'ouverture 10, la patte de guidage 70 est positionnée au voisinage de l'extrémité libre 37 du rail de guidage 32, et le dispositif ne peut être introduit que si le dispositif est correctement placé avec les doigts de la pince 80 venant entourer la tête de guidage 36. On forme ainsi un moyen de détrompage pour s'assurer que le dispositif est monté dans le bon sens, et on forme également un moyen de guidage du dispositif lors de l'insertion dans le conduit 6 puisque la rainure entre les doigts de la pince 80 est d'une largeur inférieure à l'épaisseur de la tête de guidage 36 du rail 32 et que la pince 80 ne peut ainsi pas s'échapper, restant en prise le long du rail 32. It is understood that, when the device is inserted into the duct 6 of the ventilation, heating and / or air conditioning system via the opening 10, the guide lug 70 is positioned in the vicinity of the free end 37 of the rail 32 and the device can be introduced only if the device is correctly placed with the fingers of the clamp 80 surrounding the guide head 36. A polarization means is thus formed to ensure that the device is mounted in common sense, and also forms a guide means of the device during insertion into the conduit 6 since the groove between the fingers of the clamp 80 is of a width less than the thickness of the guide head 36 of the rail 32 and that the clamp 80 can not escape, remaining in engagement along the rail 32.
La présence du rail 32 tel qu'il vient d'être décrit et la forme coopérante de la patte de guidage 70 sont intéressantes en ce qu'elles permettent d'assurer la direction d'insertion du dispositif de chauffage additionnel 4. Toutefois, en variante, on pourrait se passer de ces éléments et ne prévoir qu'un élément d'indexage en saillie de la portion de paroi distale du conduit apte à coopérer par emmanchement avec l'ouverture 74 de la deuxième interface 46 de connexion. En fin d'insertion du dispositif, on procède donc dans tous les cas à l'emboîtement à force de la deuxième interface de connexion 46 dans un élément mâle d'indexage 22 complémentaire de la forme femelle de l'ouverture 74 de la deuxième interface 46 de connexion. Les dimensions verticales et transversales de l'élément d'indexage et celles des bords de la partie centrale de la deuxième interface 46 délimitant l'ouverture 74 sont ajustées pour que l'emboitement de la deuxième interface 46 autour du manchon 20 solidaire du conduit 6 assure une fixation solide du dispositif dans le conduit 6. Les bords délimitant l'ouverture viennent en prise autour des parois transversales 24, 26 et verticales 28, 30 qui définissent le manchon 20. Et la première paroi transversale 76 de la deuxième interface prend place dans la bande de dégagement définie entre le manchon 20 et le rail de guidage 32. The presence of the rail 32 as just described and the cooperating shape of the guide tab 70 are interesting in that they ensure the insertion direction of the additional heating device 4. However, in Alternatively, one could dispense with these elements and provide only one indexing element protruding from the distal wall portion of the conduit adapted to cooperate by fitting with the opening 74 of the second interface 46 connection. At the end of the insertion of the device, therefore, in all cases, the second connection interface 46 is engaged by force in a male indexing element 22 complementary to the female shape of the opening 74 of the second interface. 46 connection. The vertical and transverse dimensions of the indexing element and those of the edges of the central portion of the second interface 46 defining the opening 74 are adjusted so that the interlocking of the second interface 46 around the sleeve 20 secured to the duct 6 provides a solid attachment of the device in the duct 6. The edges defining the opening engage around the transverse walls 24, 26 and vertical 28, 30 which define the sleeve 20. And the first transverse wall 76 of the second interface takes place in the clearance band defined between the sleeve 20 and the guide rail 32.
Il est notable que selon l'invention, l'ouverture dans la deuxième interface de connexion permet la mise en position fiable, géométriquement et dans le temps, du corps de chauffe dans le conduit de l'installation. Et on peut observer que dans un mode de réalisation similaire à celui de la figure 3, l'ouverture dans la deuxième interface traverse longitudinalement cette interface pour permettre en outre l'insertion des modules chauffants dans le boîtier. It is notable that according to the invention, the opening in the second connection interface allows the reliable positioning, geometrically and over time, of the heating body in the duct of the installation. And it can be observed that in an embodiment similar to that of Figure 3, the opening in the second interface longitudinally passes through this interface to further allow the insertion of the heating modules in the housing.
En variante, on pourra prévoir que l'ouverture ne soit pas traversante mais qu'elle consiste uniquement en une dépression formée dans la face externe de la deuxième platine de la deuxième interface, l'emboîtement à force du dispositif dans le conduit faisant l'objet de la présente invention restant dans ce cas toujours possible. In a variant, provision may be made for the opening not to be through but for it to consist solely of a depression formed in the outer face of the second plate of the second interface, the interlocking of the device in the duct forming the second interface. object of the present invention remaining in this case always possible.
La description qui précède explique clairement comment l'invention permet d'atteindre les objectifs qu'elle s'est fixés et notamment de proposer un ensemble de chauffage dans lequel on s'assure de la bonne position d'un dispositif de chauffage de type électrique dans un conduit d'une installation de ventilation, chauffage et/ou climatisation d'un véhicule automobile, pour s'assurer que chacun des modules chauffants portés par ce dispositif soit bien agencé en travers du flux d'air circulant dans ce conduit. The foregoing description clearly explains how the invention makes it possible to achieve the objectives it has set itself and in particular to propose a heating assembly in which the correct position of an electric heater is ensured. in a duct of a ventilation system, heating and / or air conditioning of a motor vehicle, to ensure that each of the heating modules carried by this device is well arranged across the flow of air flowing in this conduit.

Claims

REVENDICATIONS
1 . Dispositif de chauffage électrique pour chauffer un flux d'air traversant un conduit d'une installation de ventilation, chauffage et/ou climatisation, comportant un boîtier (38) et au moins un module chauffant (40), ledit boîtier (38) comportant un compartiment de chauffe (42) de réception du au moins un module chauffant (40) et à une extrémité duquel est portée une première interface de connexion (44) destinée à relier le module chauffant (40) à une alimentation électrique en provenance du véhicule et à réaliser la fermeture d'une ouverture (10) réalisée dans le conduit de l'installation de ventilation, chauffage et/ou climatisation et par laquelle le dispositif est inséré, caractérisé en ce que le boîtier (38) comporte une deuxième interface de connexion (46), qui est disposée à une extrémité du compartiment de chauffe (42) à l'opposé de la première interface de connexion (44) et qui est apte à coopérer avec une paroi du conduit à l'opposé de ladite ouverture (10), au moins ladite deuxième interface de connexion (46) comportant un élément d'indexage femelle (74, 76, 78, 79) réalisé sur sa face externe (71 ) tournée à l'opposé du compartiment de chauffe (42). 1. An electric heater for heating a flow of air passing through a duct of a ventilation, heating and / or air conditioning system, comprising a housing (38) and at least one heating module (40), said housing (38) having a heating compartment (42) for receiving the at least one heating module (40) and at one end of which is carried a first connection interface (44) for connecting the heating module (40) to a power supply from the vehicle and closing an opening (10) made in the duct of the ventilation, heating and / or air conditioning system and by which the device is inserted, characterized in that the housing (38) comprises a second connection interface (46), which is disposed at one end of the heating compartment (42) opposite the first connection interface (44) and is adapted to cooperate with a wall of the conduit opposite said opening (10), at least said second connection interface (46) having a female indexing element (74, 76, 78, 79) formed on its outer face (71) facing away from the heating compartment (42). ).
2. Dispositif de chauffage selon la revendication 1 , caractérisé en ce que l'élément d'indexage femelle (74, 76, 78, 79) est formé par une dépression borgne, creusée à partir de la face externe de la deuxième interface de connexion (46). 2. Heating device according to claim 1, characterized in that the female indexing element (74, 76, 78, 79) is formed by a blind depression, hollowed from the outer face of the second connection interface. (46).
3. Dispositif de chauffage selon la revendication 1 , caractérisé en ce que l'élément d'indexage femelle (74, 76, 78, 79) est formé par une ouverture (74) traversant la deuxième interface de connexion (46) et débouchant dans le compartiment de chauffe (42). 3. Heating device according to claim 1, characterized in that the female indexing element (74, 76, 78, 79) is formed by an opening (74) passing through the second connection interface (46) and opening into the heating compartment (42).
4. Dispositif de chauffage selon l'une des revendications précédentes, caractérisé en ce que la deuxième interface de connexion (46) comporte en outre, à une extrémité transversale, un moyen de guidage (70) apte à coopérer avec un deuxième moyen de guidage solidaire du conduit. 4. Heating device according to one of the preceding claims, characterized in that the second connection interface (46) further comprises, at a transverse end, a guide means (70) adapted to cooperate with a second guide means integral with the duct.
5. Dispositif de chauffage selon la revendication précédente, caractérisé en ce que ledit moyen de guidage consiste en une pince (80). 5. Heating device according to the preceding claim, characterized in that said guide means consists of a clamp (80).
6. Conduit de circulation d'air d'une installation de ventilation, chauffage et/ou climatisation, dans lequel est apte à être placé un dispositif de chauffage additionnel électrique (4) selon l'une des revendications précédentes, comportant une ouverture d'insertion (10) dudit dispositif, caractérisé en ce qu'il comporte un élément d'indexage mâle (22) qui est disposé en saillie d'une face interne (18) d'une portion de paroi (1 6) du conduit en regard de l'ouverture (10) et qui est apte à être en prise avec l'élément d'indexage femelle (74, 76, 78, 79) disposé sur la deuxième interface de connexion (46) du dispositif de chauffage additionnel (4). 6. Air circulation duct of a ventilation, heating and / or air-conditioning installation, in which an additional electric heating device (4) according to one of the preceding claims, having an opening of insertion (10) of said device, characterized in that it comprises a male indexing element (22) which is arranged projecting from an inner face (18) of a wall portion (1 6) of the duct facing of the opening (10) and which is adapted to be engaged with the female indexing element (74, 76, 78, 79) arranged on the second connection interface (46) of the additional heating device (4) .
7. Conduit selon la revendication 6, caractérisé en ce que l'élément d'indexage mâle (22) présente la forme d'un manchon (20) venu de matière avec la portion de paroi (1 6) du conduit. 7. Conduit according to claim 6, characterized in that the male indexing element (22) has the form of a sleeve (20) integral with the wall portion (1 6) of the conduit.
8. Conduit selon l'une des revendications 6 ou 7, caractérisé en ce qu'il comporte un rail de guidage (32) s'étendant dans le conduit depuis l'ouverture (10) jusqu'à la face interne de la portion de paroi portant ledit élément d'indexage mâle (22). 8. Conduit according to one of claims 6 or 7, characterized in that it comprises a guide rail (32) extending in the conduit from the opening (10) to the inner face of the portion of wall carrying said male indexing element (22).
9. Conduit selon la revendication précédente, caractérisé en ce que le rail de guidage (32) présente une extrémité libre (37) qui s'étend dans l'ouverture (10) d'insertion des modules chauffants (40). 9. Conduit according to the preceding claim, characterized in that the guide rail (32) has a free end (37) which extends into the opening (10) for insertion of the heating modules (40).
10. Installation de ventilation, chauffage et/ou climatisation dans lequel un dispositif de chauffage additionnel (4) selon l'une des revendications 1 à 5 est apte à coopérer avec des éléments d'indexage (22) portés par le conduit d'une installation de ventilation, chauffage et/ou climatisation selon l'une des revendications 6 à 9. 10. Ventilation, heating and / or air conditioning installation in which an additional heating device (4) according to one of claims 1 to 5 is adapted to cooperate with indexing elements (22) carried by the conduit of a ventilation, heating and / or air conditioning system according to one of claims 6 to 9.
1 1 . Installation selon la revendication 10, caractérisé en ce que l'élément d'indexage femelle (74, 76, 78, 79) porté par la deuxième interface de connexion (46) est emboîté à force dans un élément mâle d'indexage (22) solidaire du conduit (6). 1 1. Installation according to Claim 10, characterized in that the female indexing element (74, 76, 78, 79) carried by the second connection interface (46) is forcibly fitted into a male indexing element (22). integral with the conduit (6).
12. Installation selon l'une des revendications 10 ou 1 1 , dans lequel le conduit comporte un rail de guidage (32) selon la revendication 8, caractérisé en ce que l'élément d'indexage femelle (74, 76, 78, 79) porté par la deuxième interface (46) comporte une première paroi transversale (76) apte à prendre place dans une bande de dégagement définie entre l'élément d'indexage mâle (22) et le rail de guidage (32). 12. Installation according to one of claims 10 or 1 1, wherein the conduit comprises a guide rail (32) according to claim 8, characterized in that the indexing element female (74, 76, 78, 79 ) carried by the second interface (46) comprises a first transverse wall (76) adapted to take place in a clearance strip defined between the male indexing element (22) and the guide rail (32).
13. Installation selon l'une des revendications 10 à 12, caractérisé en ce que la première interface de connexion (44) comporte un moyen d'indexage (64) porté par la face interne (60) de la première interface de connexion (44), pour venir en prise sur l'extrémité libre (37) dudit rail de guidage (32). 13. Installation according to one of claims 10 to 12, characterized in that the first connection interface (44) comprises an indexing means (64) carried by the inner face (60) of the first connection interface (44). ), to engage the free end (37) of said guide rail (32).
PCT/EP2016/052724 2015-02-10 2016-02-09 Electric heating device and air circulation duct in a ventilation, heating and/or air-conditioning system WO2016128397A1 (en)

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FR1551039 2015-02-10
FR1551039A FR3032387B1 (en) 2015-02-10 2015-02-10 ELECTRICAL HEATING DEVICE AND CIRCULATING CIRCULATION OF AIR IN A VENTILATION, HEATING AND / OR AIR CONDITIONING INSTALLATION

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FR3056455A1 (en) * 2016-09-29 2018-03-30 Valeo Systemes Thermiques FRAME FOR AN ELECTRIC HEATING DEVICE COMPRISING A PLASTIC DEFORMATION MEANS

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FR3078018A1 (en) * 2018-02-19 2019-08-23 Valeo Systemes Thermiques FRAME FOR AN ELECTRIC HEATING DEVICE COMPRISING A PLASTIC DEFORMATION MEANS

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EP1821575A1 (en) * 2006-02-17 2007-08-22 Valeo Systèmes Thermiques Heating-element support frame for an electric radiator of a ventilation, heating and/or air-conditioning installation
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EP2056036A1 (en) * 2007-10-31 2009-05-06 Valeo Systemes Thermiques Device for electrically heating an air flow circulating in a ventilation, heating and/or air-conditioning installation of an automobile vehicle

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DE102005029774A1 (en) * 2004-06-24 2006-03-23 Behr Gmbh & Co. Kg Air conditioning system for passenger cabin of vehicle, comprising of several exchangeable modules
EP1821575A1 (en) * 2006-02-17 2007-08-22 Valeo Systèmes Thermiques Heating-element support frame for an electric radiator of a ventilation, heating and/or air-conditioning installation
JP2007313964A (en) * 2006-05-24 2007-12-06 Valeo Thermal Systems Japan Corp Air-conditioning unit for vehicle
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EP2056036A1 (en) * 2007-10-31 2009-05-06 Valeo Systemes Thermiques Device for electrically heating an air flow circulating in a ventilation, heating and/or air-conditioning installation of an automobile vehicle

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Publication number Priority date Publication date Assignee Title
FR3056455A1 (en) * 2016-09-29 2018-03-30 Valeo Systemes Thermiques FRAME FOR AN ELECTRIC HEATING DEVICE COMPRISING A PLASTIC DEFORMATION MEANS

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DE112016000677T5 (en) 2017-11-09
DE112016000677B4 (en) 2023-02-09
FR3032387B1 (en) 2018-09-14

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