FR3098352A1 - LOW TEMPERATURE COOLING CIRCUIT FOR ONE BATTERY - Google Patents
LOW TEMPERATURE COOLING CIRCUIT FOR ONE BATTERY Download PDFInfo
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- FR3098352A1 FR3098352A1 FR1907246A FR1907246A FR3098352A1 FR 3098352 A1 FR3098352 A1 FR 3098352A1 FR 1907246 A FR1907246 A FR 1907246A FR 1907246 A FR1907246 A FR 1907246A FR 3098352 A1 FR3098352 A1 FR 3098352A1
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- battery
- cooling circuit
- heater
- air
- thermal assembly
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
- H01M10/6567—Liquids
- H01M10/6568—Liquids characterised by flow circuits, e.g. loops, located externally to the cells or cell casings
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- 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
- B60H1/00007—Combined heating, ventilating, or cooling devices
- B60H1/00021—Air flow details of HVAC devices
- B60H1/00028—Constructional lay-out of the devices in the vehicle
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- 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
- B60H1/00271—HVAC devices specially adapted for particular vehicle parts or components and being connected to the vehicle HVAC unit
- B60H1/00278—HVAC devices specially adapted for particular vehicle parts or components and being connected to the vehicle HVAC unit for the battery
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- 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
- B60H1/32—Cooling devices
- B60H1/3204—Cooling devices using compression
- B60H1/3227—Cooling devices using compression characterised by the arrangement or the type of heat exchanger, e.g. condenser, evaporator
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- 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
- B60H1/32—Cooling devices
- B60H1/3204—Cooling devices using compression
- B60H1/3228—Cooling devices using compression characterised by refrigerant circuit configurations
- B60H1/32281—Cooling devices using compression characterised by refrigerant circuit configurations comprising a single secondary circuit, e.g. at evaporator or condenser side
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L1/00—Supplying electric power to auxiliary equipment of vehicles
- B60L1/003—Supplying electric power to auxiliary equipment of vehicles to auxiliary motors, e.g. for pumps, compressors
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L1/00—Supplying electric power to auxiliary equipment of vehicles
- B60L1/02—Supplying electric power to auxiliary equipment of vehicles to electric heating circuits
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
- B60L3/0023—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train
- B60L3/0046—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train relating to electric energy storage systems, e.g. batteries or capacitors
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L50/00—Electric propulsion with power supplied within the vehicle
- B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
- B60L50/60—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries
- B60L50/61—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries by batteries charged by engine-driven generators, e.g. series hybrid electric vehicles
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/61—Types of temperature control
- H01M10/613—Cooling or keeping cold
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/62—Heating or cooling; Temperature control specially adapted for specific applications
- H01M10/625—Vehicles
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/66—Heat-exchange relationships between the cells and other systems, e.g. central heating systems or fuel cells
- H01M10/663—Heat-exchange relationships between the cells and other systems, e.g. central heating systems or fuel cells the system being an air-conditioner or an engine
-
- 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
- B60H1/00007—Combined heating, ventilating, or cooling devices
- B60H1/00021—Air flow details of HVAC devices
- B60H2001/00114—Heating or cooling details
- B60H2001/00142—Heating or cooling details first heating and then cooling
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- 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
- B60H1/00007—Combined heating, ventilating, or cooling devices
- B60H1/00207—Combined heating, ventilating, or cooling devices characterised by the position of the HVAC devices with respect to the passenger compartment
- B60H2001/00214—Devices in front of the passenger compartment
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- 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
- B60H1/00271—HVAC devices specially adapted for particular vehicle parts or components and being connected to the vehicle HVAC unit
- B60H2001/00307—Component temperature regulation using a liquid flow
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2220/00—Batteries for particular applications
- H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/62—Hybrid vehicles
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Power Engineering (AREA)
- Electrochemistry (AREA)
- Transportation (AREA)
- General Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Secondary Cells (AREA)
- Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
- Air-Conditioning For Vehicles (AREA)
- Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)
Abstract
L’invention porte sur un ensemble thermique pour véhicule automobile comportant: - un groupe de climatisation (20), - un circuit de refroidissement d'une batterie du véhicule automobile comprenant un échangeur thermique apte à assurer un échange thermique entre un fluide réfrigérant et un liquide caloporteur du circuit de refroidissement ainsi qu'une pompe pour faire circuler le liquide caloporteur dans la batterie, - le circuit de refroidissement de la batterie comportant en outre un aérotherme (17) apte à assurer un échange thermique entre le liquide caloporteur du circuit de refroidissement de la batterie et de l'air extérieur, ledit aérotherme (17) étant disposé dans un espace (18) du véhicule automobile dans lequel sont situés les composants du groupe de climatisation (20). Figure 3aThe invention relates to a thermal assembly for a motor vehicle comprising: - an air conditioning unit (20), - a cooling circuit for a battery of the motor vehicle comprising a heat exchanger capable of ensuring heat exchange between a refrigerant fluid and a coolant of the cooling circuit as well as a pump for circulating the coolant in the battery, - the cooling circuit of the battery further comprising an air heater (17) capable of ensuring heat exchange between the coolant of the cooling circuit. cooling the battery and the outside air, said air heater (17) being arranged in a space (18) of the motor vehicle in which the components of the air conditioning unit (20) are located. Figure 3a
Description
La présente invention porte sur un circuit de refroidissement basse température pour une batterie. L’invention trouve une application particulièrement avantageuse avec les véhicules automobiles de type électrique ou hybride.The present invention relates to a low temperature cooling circuit for a battery. The invention finds a particularly advantageous application with motor vehicles of the electric or hybrid type.
La figure 1 montre un circuit de refroidissement 1 comportant un échangeur thermique 2 (ou "chiller" en anglais) couplé à un circuit de climatisation (non représenté) ainsi qu'une pompe 3 pilotée pour faire circuler un liquide caloporteur, tel que de l'eau contenant de l'anti-gel, à l'intérieur d'une batterie d'alimentation 4 du véhicule ainsi qu'un élément associé 5, tel qu'un convertisseur continu/continu ou un onduleur.Figure 1 shows a cooling circuit 1 comprising a heat exchanger 2 (or "chiller" in English) coupled to an air conditioning circuit (not shown) and a pump 3 controlled to circulate a heat transfer liquid, such as water containing anti-freeze, inside a supply battery 4 of the vehicle as well as an associated element 5, such as a DC/DC converter or an inverter.
L'échangeur thermique 2 assure un échange thermique entre le liquide caloporteur du circuit de refroidissement 1 et le fluide réfrigérant du circuit de climatisation. Un bocal 6 permet d'assurer le remplissage et d'absorber les variations de liquide à l'intérieur du circuit de refroidissement 1.The heat exchanger 2 ensures a heat exchange between the coolant of the cooling circuit 1 and the refrigerant of the air conditioning circuit. A jar 6 makes it possible to ensure the filling and to absorb the variations of liquid inside the cooling circuit 1.
Le défaut d'une telle configuration est qu’en dessous de 0°C, le compresseur de climatisation n’est plus actif et ne permet donc plus de faire fonctionner le circuit de climatisation 1 pour refroidir la batterie 4.The fault with such a configuration is that below 0°C, the air conditioning compressor is no longer active and therefore no longer allows air conditioning circuit 1 to operate to cool battery 4.
Il est donc nécessaire d’utiliser un échangeur (ou radiateur) 7 additionnel ainsi qu’une électrovanne 8 associée. L’électrovanne 8 est pilotée de façon à isoler l’échangeur 7 par rapport au reste du circuit lorsque la température extérieure est supérieure à 0 degré et à faire circuler le liquide caloporteur du circuit 1 à travers l'échangeur 7 lorsque la température est inférieure à 0 degré afin de refroidir la batterie (le circuit de climatisation étant alors inactif).It is therefore necessary to use an additional exchanger (or radiator) 7 as well as an associated solenoid valve 8. The solenoid valve 8 is controlled so as to isolate the exchanger 7 from the rest of the circuit when the outside temperature is above 0 degrees and to circulate the heat transfer liquid from the circuit 1 through the exchanger 7 when the temperature is lower. at 0 degrees in order to cool the battery (the air conditioning circuit then being inactive).
L'échangeur basse température 7 nécessitant un arrosage en air, il est positionné sous le capot en façade avant du véhicule automobile. Cela engendre des contraintes d’implantation nécessitant de modifier plusieurs pièces à l’avant du véhicule, telles que le groupe moto-ventilateur, le brancard, le réservoir lave-glace, etc. Cela se traduit notamment par un surcoût de fabrication ainsi que par une dégradation des émissions de dioxyde de carbone du fait d'un positionnement non optimal des différents éléments.The low temperature exchanger 7 requiring air spraying, it is positioned under the bonnet on the front of the motor vehicle. This creates installation constraints requiring the modification of several parts at the front of the vehicle, such as the motorized fan unit, the stretcher, the windscreen washer reservoir, etc. This results in particular in an additional manufacturing cost as well as in a degradation of carbon dioxide emissions due to a non-optimal positioning of the various elements.
L'invention vise à remédier efficacement à ces inconvénients en proposant un ensemble thermique pour véhicule automobile comportant:
- un groupe de climatisation comprenant plusieurs composants, notamment un évaporateur, et un aérotherme apte à assurer un échange thermique entre un liquide de refroidissement d'un moteur thermique et de l'air extérieur,
- un circuit de refroidissement d'une batterie du véhicule automobile comprenant un échangeur thermique apte à assurer un échange thermique entre un fluide réfrigérant et un liquide caloporteur du circuit de refroidissement, ainsi qu'une pompe pour faire circuler le liquide caloporteur dans la batterie,
- le circuit de refroidissement de la batterie comportant en outre un aérotherme apte à assurer un échange thermique entre le liquide caloporteur du circuit de refroidissement et de l'air extérieur, ledit aérotherme étant disposé dans un espace du véhicule automobile dans lequel sont situés les composants du groupe de climatisation.The invention aims to effectively remedy these drawbacks by proposing a thermal assembly for a motor vehicle comprising:
- an air conditioning unit comprising several components, in particular an evaporator, and a heater capable of ensuring heat exchange between a coolant of a heat engine and the outside air,
- a cooling circuit of a battery of the motor vehicle comprising a heat exchanger capable of ensuring a heat exchange between a refrigerant fluid and a heat transfer liquid of the cooling circuit, as well as a pump for circulating the heat transfer liquid in the battery,
- the battery cooling circuit further comprising a heater capable of providing heat exchange between the coolant of the cooling circuit and the outside air, said heater being disposed in a space of the motor vehicle in which the components are located of the air conditioning unit.
L’invention permet ainsi, en implantant l’échangeur du circuit de refroidissement dans l’espace du groupe de climatisation, de supprimer les contraintes d’implantation en façade avant du véhicule tout en bénéficiant d’un arrosage en air. L’invention permet également de faire l’économie de plusieurs mètres de tuyaux d’eau ainsi que d'une électrovanne car le fonctionnement du groupe de climatisation permet de ne pas réchauffer le circuit via l’aérotherme lorsque la température extérieure est suffisante. L'aérotherme du circuit de refroidissement pourra également permettre de réchauffer l’habitacle en cas de besoin.The invention thus makes it possible, by installing the exchanger of the cooling circuit in the space of the air conditioning unit, to eliminate the constraints of installation on the front facade of the vehicle while benefiting from air spraying. The invention also makes it possible to save several meters of water pipes as well as a solenoid valve because the operation of the air conditioning unit makes it possible not to heat the circuit via the unit heater when the outside temperature is sufficient. The air heater in the cooling circuit can also be used to heat the passenger compartment if necessary.
Selon une réalisation, l’espace recevant les composants du groupe de climatisation et l'aérotherme du circuit de refroidissement de la batterie est situé entre un compartiment moteur et un habitacle du véhicule automobile.According to one embodiment, the space receiving the components of the air conditioning unit and the air heater of the battery cooling circuit is located between an engine compartment and a passenger compartment of the motor vehicle.
Selon une réalisation, l'aérotherme est monté en série dans le circuit de refroidissement de la batterie, de telle façon que le liquide caloporteur passe systématiquement dans l'aérotherme lorsque la pompe est actionnée.According to one embodiment, the heater is mounted in series in the cooling circuit of the battery, so that the heat transfer liquid systematically passes through the heater when the pump is activated.
Selon une réalisation, ledit ensemble thermique comporte un volet mobile entre une position ouverte dans laquelle le volet autorise l'air extérieur à atteindre l'aérotherme du circuit de refroidissement de la batterie et une position fermée dans laquelle le volet empêche l'air extérieur d’atteindre l'aérotherme du circuit de refroidissement de la batterie.According to one embodiment, said thermal assembly comprises a movable shutter between an open position in which the shutter allows the outside air to reach the unit heater of the battery cooling circuit and a closed position in which the shutter prevents the outside air from reach the battery cooling circuit air heater.
Selon une réalisation, un pulseur est destiné à augmenter un débit d'air extérieur destiné à venir lécher l'aérotherme du circuit de refroidissement de la batterie pour en extraire des calories.According to one embodiment, a blower is intended to increase a flow of outside air intended to lick the air heater of the cooling circuit of the battery in order to extract calories therefrom.
Selon une réalisation, l'aérotherme du circuit de refroidissement de la batterie est disposé à proximité de l'aérotherme du groupe de climatisation.According to one embodiment, the unit heater of the battery cooling circuit is arranged close to the unit heater of the air conditioning unit.
Selon une réalisation, l'aérotherme du groupe de climatisation et l'aérotherme du circuit de refroidissement de la batterie sont distincts l'un par rapport à l'autre.According to one embodiment, the air heater of the air conditioning unit and the air heater of the battery cooling circuit are separate with respect to each other.
Selon une réalisation, l'aérotherme du groupe de climatisation et l'aérotherme du circuit de refroidissement de la batterie appartiennent à un aérotherme commun séparé en deux parties correspondant chacune à un aérotherme.According to one embodiment, the unit heater of the air conditioning unit and the unit heater of the battery cooling circuit belong to a common unit heater separated into two parts each corresponding to a unit heater.
Selon une réalisation, les deux parties de l'aérotherme commun sont disposées l'une à côté de l'autre ou superposées verticalement l'une par rapport à l'autre.According to one embodiment, the two parts of the common air heater are arranged one beside the other or superimposed vertically with respect to one another.
L'invention concerne en outre un véhicule automobile comportant un ensemble thermique tel que précédemment défini.The invention further relates to a motor vehicle comprising a thermal assembly as previously defined.
L’invention sera mieux comprise à la lecture de la description qui suit et à l’examen des figures qui l’accompagnent. Ces figures ne sont données qu’à titre illustratif mais nullement limitatif de l’invention.The invention will be better understood on reading the following description and on examining the accompanying figures. These figures are given only by way of illustration but in no way limit the invention.
Sur les figures 2 et suivantes, les éléments identiques, similaires, ou analogues conservent la même référence d'une figure à l'autre.In FIGS. 2 and following, identical, similar or analogous elements retain the same reference from one figure to another.
La figure 2 montre un circuit de refroidissement 10 comportant un échangeur thermique 11 (ou "chiller" en anglais) couplé à un circuit de climatisation (non représenté) ainsi qu'une pompe 12 pilotée pour faire circuler le liquide caloporteur, tel que de l'eau contenant de l'anti-gel, à l'intérieur d'une batterie d'alimentation 13 du véhicule ainsi qu'un élément associé 15, tel qu'un convertisseur continu/continu ou un onduleur.Figure 2 shows a cooling circuit 10 comprising a heat exchanger 11 (or "chiller" in English) coupled to an air conditioning circuit (not shown) and a pump 12 controlled to circulate the heat transfer liquid, such as water containing anti-freeze, inside a supply battery 13 of the vehicle as well as an associated element 15, such as a DC/DC converter or an inverter.
L'échangeur thermique 11 assure un échange thermique entre le liquide caloporteur du circuit de refroidissement 10 et le fluide réfrigérant du circuit de climatisation du véhicule automobile. Un bocal 16 permet d'assurer le remplissage et d'absorber les variations de liquide à l'intérieur du circuit de refroidissement 10. Le circuit de refroidissement 10 de la batterie 13 est un circuit à basse température fonctionnant aux alentours d'une température comprise entre 30°C et 40°C.The heat exchanger 11 ensures a heat exchange between the coolant of the cooling circuit 10 and the refrigerant of the air conditioning circuit of the motor vehicle. A jar 16 makes it possible to ensure the filling and to absorb the variations of liquid inside the cooling circuit 10. The cooling circuit 10 of the battery 13 is a low temperature circuit operating around a temperature comprised between 30°C and 40°C.
En outre, un aérotherme 17 est monté en série dans le circuit de refroidissement 10 de la batterie 13, de telle façon que le liquide caloporteur passe systématiquement dans l'aérotherme 17 dès que la pompe 12 est actionnée. L'aérotherme 17 pourra notamment être disposé entre l'échangeur thermique 11 et la batterie 13 ou entre l'échangeur thermique 11 et l’élément associé 15. Cet aérotherme 17 est disposé dans un espace 18 du véhicule automobile dans lequel sont situés des composants d'un groupe de climatisation 20.In addition, a heater 17 is mounted in series in the cooling circuit 10 of the battery 13, so that the heat transfer liquid systematically passes through the heater 17 as soon as the pump 12 is activated. The heater 17 may in particular be placed between the heat exchanger 11 and the battery 13 or between the heat exchanger 11 and the associated element 15. This heater 17 is placed in a space 18 of the motor vehicle in which components are located. of an air conditioning group 20.
Plus précisément, comme on peut le voir sur les figures 3a, 3b, et 3c, le groupe de climatisation 20 comprend plusieurs composants, notamment un évaporateur 21 au sein duquel un fluide réfrigérant absorbe la chaleur de l’air de l'habitacle en changeant d’état physique, et un aérotherme 22 assurant un échange thermique entre un liquide de refroidissement d'un moteur thermique et de l'air extérieur (cf. flèche A), et une résistance de chauffage 23.More specifically, as can be seen in Figures 3a, 3b, and 3c, the air conditioning unit 20 comprises several components, in particular an evaporator 21 within which a refrigerant fluid absorbs heat from the air in the passenger compartment by changing of physical state, and a heater 22 providing heat exchange between a coolant of a heat engine and the outside air (see arrow A), and a heating resistor 23.
Il est à noter que le "groupe de climatisation 20" ne doit pas être confondu avec le "circuit de climatisation" qui comporte classiquement l'évaporateur 21, un compresseur qui pourra être de type électrique ou mécanique en étant entrainé en façade accessoires, et un condenseur au sein duquel le gaz frigorigène cède sa chaleur à l’air extérieur grâce à l’avancement du véhicule et/ou au fonctionnement d'un groupe moto-ventilateur. Ce condenseur est disposé en façade avant du véhicule automobile.It should be noted that the "air conditioning unit 20" should not be confused with the "air conditioning circuit" which conventionally comprises the evaporator 21, a compressor which may be of the electrical or mechanical type by being driven on the accessories front, and a condenser in which the refrigerant gas gives up its heat to the outside air thanks to the progress of the vehicle and/or the operation of a motorized fan unit. This condenser is arranged on the front face of the motor vehicle.
L’espace 18 recevant les composants du groupe de climatisation 20 et l'aérotherme 17 du circuit de refroidissement 10 de la batterie 13 est situé entre un compartiment moteur 19 et un habitacle 24 du véhicule. Un filtre à air 25 permet de filtrer les impuretés de l'air issu de l'espace 18 avant qu'il pénètre à l'intérieur de l'habitacle 24.The space 18 receiving the components of the air conditioning unit 20 and the air heater 17 of the cooling circuit 10 of the battery 13 is located between an engine compartment 19 and a passenger compartment 24 of the vehicle. An air filter 25 makes it possible to filter the impurities from the air coming from the space 18 before it enters the interior of the passenger compartment 24.
Avantageusement, un volet 26 permet d’arroser ou non l'aérotherme 17 suivant les situations de vie afin de refroidir ou non le circuit de refroidissement 10 de la batterie 13 en cas de besoin. A cet effet, le volet 26 est mobile entre une position ouverte dans laquelle le volet 26 autorise l'air extérieur à atteindre les aérothermes 17, 22 et une position fermée dans laquelle le volet 26 empêche l'air extérieur d’atteindre les aérothermes 17, 22.Advantageously, a flap 26 makes it possible to spray the air heater 17 or not depending on the living situation in order to cool or not the cooling circuit 10 of the battery 13 if necessary. To this end, the shutter 26 is movable between an open position in which the shutter 26 allows outside air to reach the unit heaters 17, 22 and a closed position in which the shutter 26 prevents outside air from reaching the unit heaters 17 , 22.
Un pulseur 27, prenant par exemple la forme d'un ventilateur, est destiné à augmenter un débit d'air extérieur destiné à venir lécher l'aérotherme 17 pour en extraire des calories. Le pulseur 27 est activé notamment lorsque le véhicule roule à faible vitesse.A blower 27, for example taking the form of a fan, is intended to increase a flow of outside air intended to lick the air heater 17 to extract calories therefrom. The pulser 27 is activated in particular when the vehicle is traveling at low speed.
L'aérotherme 17 du circuit de refroidissement 10 de la batterie 13 est disposé à proximité de l'aérotherme 22 du groupe de climatisation 20.The unit heater 17 of the cooling circuit 10 of the battery 13 is arranged near the unit heater 22 of the air conditioning unit 20.
Comme cela est illustré par la figure 3a, l'aérotherme 22 du groupe de climatisation 20 et l'aérotherme 17 du circuit de refroidissement 10 de la batterie 13 pourront être distincts l'un par rapport à l'autre. La résistance de chauffage 23 pourra être interposée entre les aérothermes 17 et 22.As shown in Figure 3a, the heater 22 of the air conditioning unit 20 and the heater 17 of the cooling circuit 10 of the battery 13 may be separate from each other. The heating resistor 23 may be interposed between the unit heaters 17 and 22.
Comme cela est illustré par les figures 3b et 3c, l'aérotherme 22 du groupe de climatisation 20 et l'aérotherme 17 du circuit de refroidissement 10 de la batterie 13 pourront appartenir à un aérotherme commun 30 séparé en deux parties correspondant chacune à un aérotherme 17, 22.As illustrated by FIGS. 3b and 3c, the heater 22 of the air conditioning unit 20 and the heater 17 of the cooling circuit 10 of the battery 13 may belong to a common heater 30 separated into two parts each corresponding to a heater 17, 22.
Ainsi, une première partie de l'aérotherme 30 correspondant à l'aérotherme 17 assure l'échange thermique entre le liquide caloporteur du circuit de refroidissement 10 de la batterie 13 et l'air extérieur et une deuxième partie de l'aérotherme 30 correspondant à l'aérotherme 22 assure l'échange thermique entre le liquide de refroidissement du moteur et l'air extérieur.Thus, a first part of the heater 30 corresponding to the heater 17 ensures the heat exchange between the heat transfer liquid of the cooling circuit 10 of the battery 13 and the outside air and a second part of the heater 30 corresponding to the heater 22 ensures the heat exchange between the engine coolant and the outside air.
Les deux parties de l'aérotherme commun 30 pourront être disposées l'une à côté de l'autre (cf. figure 3b) ou superposées verticalement l'une par rapport à l'autre (cf. figure 3c).The two parts of the common unit heater 30 may be arranged one beside the other (cf. FIG. 3b) or superimposed vertically with respect to one another (cf. FIG. 3c).
On décrit ci-après le fonctionnement du circuit de refroidissement 10 de la batterie 13. Lorsque la température est supérieure à 0 degré, l'échangeur thermique 11 (le "chiller") permet de refroidir la batterie 13. Le volet 26 est alors en position fermée pour empêcher l'air de venir en contact avec l'aérotherme 17 car l’aérotherme 17 n'est pas utile pour refroidir la batterie 13.The operation of the cooling circuit 10 of the battery 13 is described below. When the temperature is above 0 degrees, the heat exchanger 11 (the "chiller") allows the battery 13 to be cooled. closed position to prevent air from coming into contact with the heater 17 because the heater 17 is not useful for cooling the battery 13.
Lorsque la température passe en dessous de 0°C, le compresseur de climatisation est désactivé, de sorte que l'échangeur thermique 11 (le "chiller") n’est plus fonctionnel. Le refroidissement des composants du circuit basse température 10 est alors effectué via l’aérotherme 17 implanté dans le groupe de climatisation 20. A cet effet, le volet 26 passe en position ouverte pour permettre à de l’air frais provenant de l’extérieur d’arroser l'aérotherme 17 afin de dissiper les calories provenant du circuit 10. Pour favoriser le refroidissement, on pourra activer le pulseur 27 du groupe de climatisation 20.When the temperature falls below 0°C, the air conditioning compressor is deactivated, so that the heat exchanger 11 (the "chiller") is no longer functional. The cooling of the components of the low temperature circuit 10 is then carried out via the air heater 17 installed in the air conditioning unit 20. To this end, the shutter 26 switches to the open position to allow fresh air from outside to water the unit heater 17 in order to dissipate the calories coming from the circuit 10. To promote cooling, the pulser 27 of the air conditioning unit 20 can be activated.
L’aérotherme 17 pourra également participer au chauffage de l’habitable.Unit heater 17 may also participate in heating the passenger compartment.
Dans certaines situations de vie, il sera également possible d'activer la résistance de chauffage 23 afin de réchauffer le liquide caloporteur du circuit de refroidissement 10 afin que la batterie 13 atteigne le plus rapidement possible une température de fonctionnement optimale.In certain life situations, it will also be possible to activate the heating resistor 23 in order to heat the heat transfer liquid of the cooling circuit 10 so that the battery 13 reaches an optimum operating temperature as quickly as possible.
L'invention concerne en outre un véhicule automobile comportant un ensemble thermique tel que précédemment décrit.The invention further relates to a motor vehicle comprising a thermal assembly as previously described.
Claims (10)
- un groupe de climatisation (20) comprenant plusieurs composants, notamment un évaporateur (21), et un aérotherme (22) apte à assurer un échange thermique entre un liquide de refroidissement d'un moteur thermique et de l'air extérieur,
- un circuit de refroidissement (10) d'une batterie (13) du véhicule automobile comprenant un échangeur thermique (11) apte à assurer un échange thermique entre un fluide réfrigérant et un liquide caloporteur du circuit de refroidissement (10), ainsi qu'une pompe (12) pour faire circuler le liquide caloporteur dans la batterie (13),
caractérisé en ce que le circuit de refroidissement (10) de la batterie (13) comporte en outre un aérotherme (17) apte à assurer un échange thermique entre le liquide caloporteur du circuit de refroidissement (10) et de l'air extérieur, ledit aérotherme (17) étant disposé dans un espace (18) du véhicule automobile dans lequel sont situés les composants du groupe de climatisation (20).Thermal assembly for a motor vehicle comprising:
- an air conditioning unit (20) comprising several components, in particular an evaporator (21), and a heater (22) capable of ensuring a heat exchange between a coolant of a heat engine and the outside air,
- a cooling circuit (10) of a battery (13) of the motor vehicle comprising a heat exchanger (11) capable of ensuring a heat exchange between a refrigerant fluid and a heat transfer liquid of the cooling circuit (10), as well as a pump (12) for circulating the heat transfer liquid in the battery (13),
characterized in that the cooling circuit (10) of the battery (13) further comprises an air heater (17) capable of providing heat exchange between the heat transfer liquid of the cooling circuit (10) and the outside air, said air heater (17) being arranged in a space (18) of the motor vehicle in which the components of the air conditioning unit (20) are located.
Priority Applications (1)
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FR1907246A FR3098352B1 (en) | 2019-07-01 | 2019-07-01 | LOW TEMPERATURE COOLING CIRCUIT FOR ONE BATTERY |
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FR1907246 | 2019-07-01 | ||
FR1907246A FR3098352B1 (en) | 2019-07-01 | 2019-07-01 | LOW TEMPERATURE COOLING CIRCUIT FOR ONE BATTERY |
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FR3098352A1 true FR3098352A1 (en) | 2021-01-08 |
FR3098352B1 FR3098352B1 (en) | 2021-06-11 |
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FR1907246A Active FR3098352B1 (en) | 2019-07-01 | 2019-07-01 | LOW TEMPERATURE COOLING CIRCUIT FOR ONE BATTERY |
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Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB711909A (en) * | 1948-10-01 | 1954-07-14 | Friedrich Nallinger | Improvements relating to the heating or heating and ventilation of motor road vehicles |
DE19725651A1 (en) * | 1996-06-27 | 1998-01-02 | Volkswagen Ag | Device for cooling internal combustion engine of motor vehicle, and air-conditioning of vehicle interior |
FR2984017A1 (en) * | 2011-12-07 | 2013-06-14 | IFP Energies Nouvelles | DEVICE FOR CONDITIONING ELECTRIC BATTERY TEMPERATURE, IN PARTICULAR FOR MOTOR VEHICLE, AND METHOD USING SUCH A DEVICE |
US9823023B2 (en) * | 2011-06-27 | 2017-11-21 | Hanon Systems | Heat exchanger unit with removable cassettes for air conditioning in motor vehicles |
GB2555475A (en) * | 2016-10-31 | 2018-05-02 | Williams Advanced Engineering Ltd | A heating and cooling system for an electric vehicle |
-
2019
- 2019-07-01 FR FR1907246A patent/FR3098352B1/en active Active
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB711909A (en) * | 1948-10-01 | 1954-07-14 | Friedrich Nallinger | Improvements relating to the heating or heating and ventilation of motor road vehicles |
DE19725651A1 (en) * | 1996-06-27 | 1998-01-02 | Volkswagen Ag | Device for cooling internal combustion engine of motor vehicle, and air-conditioning of vehicle interior |
US9823023B2 (en) * | 2011-06-27 | 2017-11-21 | Hanon Systems | Heat exchanger unit with removable cassettes for air conditioning in motor vehicles |
FR2984017A1 (en) * | 2011-12-07 | 2013-06-14 | IFP Energies Nouvelles | DEVICE FOR CONDITIONING ELECTRIC BATTERY TEMPERATURE, IN PARTICULAR FOR MOTOR VEHICLE, AND METHOD USING SUCH A DEVICE |
GB2555475A (en) * | 2016-10-31 | 2018-05-02 | Williams Advanced Engineering Ltd | A heating and cooling system for an electric vehicle |
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