Thermal regulation device, particularly for motor vehicles

Abstract

Thermal regulation device comprising a first circuit (200) of first heat transfer fluid, comprising a distribution system (100) having a plurality of distribution ports (120a-120g), said first circuit comprising a plurality of branches (250a-250f) connected to one of said distribution ports (120a-120f), said distribution system (100) being configured to take different positions intended to connect at least some of said branches (250a-250f) with each other, said distribution system (100) comprising a distributor element (10), intended to be rotationally movable in order to selectively supply said branches (250a-250f) to be connected with each other according to angular positions of said distributor element (10), at least two (250b, 250f) of said branches being connected to first two-fluid heat exchanger (204),said device comprising a refrigerant circuit (300) including said first two-fluid heat exchanger (204) as well as a two-fluid cooling heat exchanger (504), and a cooling radiator (502). Figure for the abbreviation: Figure 2,

Description

Title of the invention: Thermal regulation device, particularly for motor vehicles Technical field of the invention

[0001] The invention relates to a thermal regulation device, in particular for motor vehicles. Technical background

[0002] It is known to combine heat transfer fluid circuits and refrigerant fluid circuits to provide thermal conditioning for various components or areas of a motor vehicle, particularly its batteries and / or passenger compartment. With the increasing prevalence of hybrid and electric powertrains, these circuits have numerous branches to meet the vehicle's thermal management needs in various operating modes.

[0003] To circulate the fluid through their various branches, heat transfer fluid circuits include a large number of valves connecting the branches in different configurations depending on the desired operating mode. Such a large number of valves increases pressure losses. Furthermore, they make controlling the fluid circulation more complex and increase the cost of these circuits.

[0004] Rotary valves have also been proposed to connect numerous inlets / outlets, thus offering greater fluid circulation possibilities between circuit branches compared to standard two-, three-, or four-way valves. However, there remains a need to refine the associated heat transfer fluid circuits to reduce their complexity while maintaining a wide range of possible operating modes.

[0005] Furthermore, it is known to use refrigerants such as propane. Such refrigerants are not compatible with the direct cooling of the airflow intended to thermoregulate the passenger compartment. Summary of the invention

[0006] The present invention aims to overcome, at least in part, the drawbacks stated above and, to this end, proposes a thermal regulation device comprising a first heat transfer fluid circuit, said first heat transfer fluid circuit comprising a distribution system for said first heat transfer fluid having a plurality of distribution orifices for said first heat transfer fluid, said first heat transfer fluid circuit further comprising a plurality of branches respectively connected to one of said distribution orifices, said distribution system being configured to assume different positions. tively intended to connect at least some of said branches together, said distribution system comprising a distributing element, said distributing element being intended to be mobile in rotation around a longitudinal axis in order to selectively supply said branches to be connected together according to angular positions of said distributing element, at least two of said branches being connected to an exchanger, said first two-fluid exchanger, intended to exchange heat with a refrigerant, said device further comprising a refrigerant circuit comprising said first two-fluid exchanger as well as another two-fluid exchanger, said cooling two-fluid exchanger, intended for heat exchange between said refrigerant and a heat transfer fluid, circulating in a cooling circuit, said cooling circuit further comprising a cooling radiator,intended for heat exchange between said heat transfer fluid circulating in the cooling circuit and an airflow, referred to as internal.

[0007] Thanks to said cooling radiator, it is possible to cool the internal airflow without direct exchange between said internal airflow and said refrigerant, while retaining the advantage of dissipating the heat extracted from said internal airflow in said refrigerant circuit via said cooling circuit. Furthermore, the multi-way distribution system allows for numerous operating modes, including thermoregulation of said internal airflow, involving said first heat transfer fluid via the first two-way heat exchanger and the refrigerant circuit, thereby limiting the complexity of said first circuit.

[0008] The device according to the invention may further comprise one or more of the following features, taken individually or in combination with each other: - said first heat transfer fluid circuit is configured so that said first heat transfer fluid circulates from and to the distribution system, passing through said first two-fluid heat exchanger without passing through a pump, - said first circuit of first heat transfer fluid comprises at least five branches connected to said distribution system, - in said first circuit of first heat transfer fluid: • The first of these branches includes a heat exchanger, also known as an electrical energy storage system, • a second of said branches is connected to said first two-fluid exchanger, • a third of said branches comprises an exchanger, called the first external exchanger, intended to exchange heat with a second heat transfer fluid, • a fourth of said branches comprises a first pump and, possibly, a heat exchanger, referred to as an electrical system heat exchanger, • a fifth of said branches is connected to said first two-fluid exchanger, • a sixth of said branches is connected to said electrical energy storage system exchanger, and / or • a seventh of said branches is configured to bypass the third branch, said first heat transfer fluid circuit is configured such that one of the angular positions of the distribution element, said first position, allows the formation of a first loop comprising said first, second, fifth and sixth branches and a second loop comprising said third and fourth branches, said device is configured so that said sixth branch of the first first heat transfer fluid circuit supplies said first branch of the first first heat transfer fluid circuit with first heat transfer fluid in all angular positions of said distribution member, said device includes a divergence point, located at a first end of said fourth branch of the first first heat transfer fluid circuit, said first end of said fourth branch being opposite a second end of said fourth branch connected to said distribution system, said point of divergence is connected to said third branch of the first circuit of the first heat transfer fluid and to said seventh branch of the first circuit of the first heat transfer fluid, said device is configured so that said first heat transfer fluid is a coolant, said device is configured so that said second heat transfer fluid is a first airflow, referred to as external, said device includes a refrigerant circuit, said refrigerant circuit includes said first two-fluid heat exchanger and said two-fluid cooling heat exchanger, said refrigerant circuit comprises a main loop including, according to a direction of circulation of said refrigerant in said main loop, a compressor, a second two-fluid heat exchanger, an expansion device and said first two-fluid heat exchanger, said cooling two-fluid heat exchanger forming a third two-fluid heat exchanger of said device, said main loop comprising a branch, said main branch, equipped with said compressor and said second two-fluid heat exchanger, said refrigerant circuit includes a first branch, located in parallel with said main branch, said first branch including said two-fluid cooling exchanger, said device includes a second heat transfer fluid circuit, said second heat transfer fluid circuit including the second two-fluid exchanger, said cooling circuit forming a third heat transfer fluid circuit of said device, said device includes a heat exchanger, referred to as a specific one, intended for heat exchange between the first heat transfer fluid and the heat transfer fluid circulating in said second circuit, said device is configured so that said heat transfer fluid circulating in said second circuit is of the same nature as said first heat transfer fluid, said second heat transfer fluid circuit comprises a first branch including said specific heat exchanger, said second heat transfer fluid circuit comprises a second branch, situated in parallel with said first branch of said second heat transfer fluid circuit, said second branch of the second heat transfer fluid circuit comprising said second two-fluid exchanger, said second heat transfer fluid circuit includes a third branch, located parallel to said first branch of said second heat transfer fluid circuit, said third branch of the second heat transfer fluid circuit including a heat exchanger, said second external heat exchanger, intended for heat exchange between said heat transfer fluid and said external airflow, said second heat transfer fluid circuit includes a fourth branch, located parallel to said first branch of said second heat transfer fluid circuit, said fourth branch of the second heat transfer fluid circuit including a heat exchanger enabling heat exchange between said heat transfer fluid of said second heat transfer fluid circuit and said internal airflow, said second heat transfer fluid circuit comprises one or more valves, in particular a four-way valve, connecting said first, second, third and fourth branches of said second heat transfer fluid circuit, said distribution unit comprises a body having: • a first fluid distribution channel, extending axially along the longitudinal axis, and • a first chamber communicating with said first canal of

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[0015] distribution, said first chamber opening radially, so that angular positions of said body determine a passage of fluid between an inlet and / or outlet channel, said axial, and at least one of the inlet and / or outlet channels, said peripheral, of the distribution system, through the first chamber and the first distribution channel, - the first distribution channel is centered on the longitudinal axis, - the first chamber is intended to communicate with at most one of the peripheral channels, regardless of the angular position of the body; - the body has one or more secondary chambers opening radially such that angular positions of said body determine a passage of fluid between different of said peripheral inlet and / or outlet channels of said distribution system, through the or at least one of the secondary chambers, - the first and / or second chambers extend angularly around the longitudinal axis, - the body comprises branches connected to each other at a central part, said branches extending from said central part to lateral edges of said body, said branches defining at least one of said chambers, - said distribution system forms a valve, - said valve includes a housing defining a compartment for said distributing organ, said housing being provided with said peripheral inlet and / or outlet channels. Brief description of the figures Other features and advantages of the invention will become apparent upon reading the detailed description that follows, for an understanding of which reference should be made to the attached drawings in which: [Fig. 1] schematically illustrates an example of a control device according to the invention, used in a first mode of operation, [Fig.2] schematically illustrates a second mode of operation of the regulation device of the [Fig.1], [Fig.3] schematically illustrates a third operating mode of the regulation device of the [Fig.1], [Fig.4] schematically illustrates a fourth operating mode of the regulation device of the [Fig.1], [Fig.5] schematically illustrates a fifth operating mode of the regulation device of the [Fig.1],

[0016] [Fig.6] schematically illustrates a sixth operating mode of the regulation device of the [Fig.1],

[0017] [Fig.7] schematically illustrates in perspective an example of a distributing element of a distribution system of a thermal regulation device according to the invention,

[0018] [Fig.8] schematically illustrates, according to a cross-sectional plane, the distributing organ of the [Fig.7],

[0019] [Fig.9] is an exploded view of a distribution system comprising the distributor element of the [Fig.7],

[0020] [Fig. 10] schematically illustrates in perspective the distribution system of the [Fig.9],

[0021] [Fig. 11] is an exploded view of another distribution system comprising the distributor element of [Fig. 7],

[0022] [Fig. 12] schematically illustrates, according to an axial cross-sectional plane, the distribution system of the [Fig. 11].

[0023] On these figs, the same reference corresponds to identical or similar elements. Detailed description of the invention

[0024] It should first be noted that the terms upstream and downstream used in the following description refer to the direction of flow of the fluid in question. Furthermore, the terms "first", "second", "third", ... are used solely to distinguish the components concerned from one another and do not imply any order or potential importance of said components.

[0025] As illustrated in [Figs. 1] to 6, the invention relates to a thermal regulation device. It is intended, in particular, for motor vehicles, especially electric motor vehicles. It is used, for example, for the thermal regulation of various components or areas of motor vehicles, in particular their batteries, their powertrain and / or their passenger compartment.

[0026] Said thermal regulation device comprises a first circuit 200 of a first heat transfer fluid. Said first heat transfer fluid is, for example, a liquid, in particular a mixture of water and an antifreeze product such as glycol. Alternatively, it is, for example, a dielectric fluid such as oil.

[0027] Said first circuit 200 of first heat transfer fluid comprises a distribution system 100 of said first heat transfer fluid and a plurality of branches 250a-250g respectively connected to one of the distribution ports 120a-120g of said distribution system 100.

[0028] Said distribution system 100 is intended to enable communication between at least said branches 250a-250g are connected to each other according to different configurations of said system. This distribution system includes a distributing element 10 to selectively supply said branches 250a-250g with each other according to positions, particularly angular positions, of said distributing element 10. To this end, said distributing element 10 is preferably designed to be rotationally mobile around a longitudinal axis.

[0029] At least two of said branches 250b, 250f of the first circuit 200 of first heat transfer fluid are connected to an exchanger 204, called first two-fluid exchanger, intended to exchange heat with a refrigerant fluid.

[0030] Said device further comprising a refrigerant circuit 300 and a cooling circuit 500. Said heat transfer fluid circuit 300 comprises said first two-fluid heat exchanger 204 as well as another two-fluid heat exchanger 504, referred to as the cooling two-fluid heat exchanger, intended for heat exchange between said refrigerant and a heat transfer fluid circulating in the cooling circuit 500 of said device.

[0031] Said refrigerant circuit 300 is configured to perform a thermodynamic cycle, in particular with a compression phase, a first heat exchange phase, an expansion phase and a second heat exchange phase. It is configured to operate reversibly, namely in both heat pump and air conditioning modes.

[0032] Said cooling circuit 500 further includes a cooling radiator 502, intended for heat exchange between said heat transfer fluid circulating in the cooling circuit 500 and an airflow, referred to as internal, identified here by an illustrated arrow I.

[0033] Thanks to the cooling radiator 502, it is possible to cool the internal airflow I using the heat transfer fluid circulating in the cooling circuit 500 instead of cooling it by direct exchange with the refrigerant. Such a configuration is particularly advantageous when the refrigerant is hazardous or flammable, such as propane. Furthermore, thanks to the multi-way distribution system 100, it is possible to limit the complexity of the first heat transfer fluid circuit 200 while maintaining a large number of possible operating modes, in particular thermoregulation of the internal airflow I, via the refrigerant circuit 300.

[0034] Said internal airflow I is intended to circulate within the passenger compartment for its thermoregulation. Said cooling radiator is configured to be positioned in a ventilation, heating and / or air conditioning unit located, for example, under a dashboard of the vehicle.

[0035] It is noted that said cooling circuit 500 of heat transfer fluid comprises yet another fourth 506 pump.

[0036] The device further comprises a second heat transfer fluid circuit 400. This second heat transfer fluid circuit 400 comprises a heat exchanger 402, referred to as the second two-fluid heat exchanger, also intended to exchange heat with the refrigerant.

[0037] Said two-fluid cooling exchanger 504 then forms a third two-fluid exchanger and the cooling circuit 500 forms a third heat transfer fluid circuit of the device.

[0038] Preferably, said device further comprises a heat exchanger 404, said specific, intended for heat exchange between the first heat transfer fluid and the heat transfer fluid circulating in said second heat transfer fluid circuit 400.

[0039] Said device is preferably configured so that said heat transfer fluid circulating in said second circuit 400 is of the same nature as said first heat transfer fluid, for example water with antifreeze. Alternatively, it consists of two heat transfer fluids of different natures, for example a dielectric fluid for the first heat transfer fluid and water with antifreeze for the heat transfer fluid circulating in said second heat transfer fluid circuit 400.

[0040] By creating two separate heat transfer fluid loops, namely the first circuit 200 of first heat transfer fluid and the second circuit 400 of heat transfer fluid, and by equipping one of them, in this case the first circuit 200 of first heat transfer fluid, with said multi-way distribution system 100, it is possible to limit the number of valves to be used to control the circulation of said heat transfer fluid(s) while maintaining a large number of possible operating modes.

[0041] Said branches 250a-250g of the first circuit 200 of the first heat transfer fluid are preferably at least five in number. Here, there are seven:

[0042] - a first 250d of said branches, in connection with a first 120d of the orifices communication, includes a heat exchanger 202, referred to as an electrical energy storage system,

[0043] - a second 250b of said branches, in connection with a second 120b of the communication ports, is connected to the first two-fluid exchanger 204,

[0044] - a third 250c of said branches, in connection with a third 120c of the orifices communication, includes an exchanger 206, called the first external exchanger, intended to exchange heat with a second heat transfer fluid, identified here by an illustrated arrow E,

[0045] - a fourth 250th of said branches, in connection with a fourth 120th of communication ports, includes a first pump 208 and, possibly, a heat exchanger 210, referred to as an electrical system,

[0046] - a fifth 250f of said branches, in conjunction with a fifth 120f of communication ports, is connected to said two-fluid exchanger 204,

[0047] - a sixth 250g of said branches, in connection with a sixth 120g of the ports of communication, includes said specific interchange 404, and / or

[0048] - a seventh 250a of said branches, in connection with the seventh 120a of the orifices communication, is configured for a bypass of the third 250c branch.

[0049] By heat exchanger 202 of electrical energy storage system, we mean an exchanger allowing both direct and indirect heat exchange with said storage system.

[0050] In other words, according to a first embodiment, the heat exchanger 202 of the storage system is integrated into said storage system and allows the first heat transfer fluid to pass through said storage system, cooling or heating it. This first heat transfer fluid is preferably a dielectric fluid so that it can be brought into contact with the electrical components of said storage system.

[0051] According to another embodiment, said device comprises a circuit of a first specific fluid for the thermal regulation of said storage system. Said first specific fluid circuit comprises said heat exchanger 202 of the storage system and said storage system, as well as a first specific pump for driving said first specific fluid. Said heat exchanger 202 of the storage system is then intended for heat exchange between said first heat transfer fluid and said first specific fluid. Said first specific fluid is then preferably a dielectric fluid and the first heat transfer fluid is advantageously water with added antifreeze, subject to the heat exchange method with said electrical system as indicated below.

[0052] Said storage system is formed, for example, of one or more electric batteries.

[0053] By heat exchanger 210 of electrical system, we mean an exchanger allowing both direct and indirect heat exchange with said electrical system.

[0054] In other words, according to a first embodiment, the heat exchanger 210 of the electrical system is integrated into said electrical system and allows the first heat transfer fluid to pass through said electrical system, cooling or heating it. This first heat transfer fluid is preferably a dielectric fluid so that it can be brought into contact with the electrical components of said electrical system.

[0055] According to another embodiment, said device comprises a circuit of a second specific thermal regulation fluid for said electrical system. Said circuit of the second specific fluid comprises said heat exchanger 210 of the electrical system and said electrical system, as well as a second specific pump for driving said second specific fluid. Said heat exchanger 210 of the electrical system is then intended for heat exchange between said first heat transfer fluid and said second specific fluid. Said second specific fluid is then preferably a dielectric fluid and the first heat transfer fluid is advantageously water with added antifreeze, subject to the heat exchange method with said electrical energy storage system as indicated above.

[0056] Said electrical system includes, for example, an electric machine used for motorizing the vehicle and / or an electronic control system for said electric machine.

[0057] The device is configured so that the second heat transfer fluid is, for example, another airflow, referred to as external. The first external heat exchanger 206 is intended to be located, in particular, at the front of the vehicle so that it is traversed by the external airflow E, said external airflow E having previously passed through a grille of the vehicle. The first external heat exchanger 206 is formed, for example, by a front-facing radiator.

[0058] The device here includes a divergence point 214, located at a first end of said fourth branch 250e. Said first end of the fourth branch 250e is opposite a second end of said fourth branch 250e connected to said distribution system 100 at its fourth distribution port 120e. Said divergence point is connected to said third branch 250c and to said seventh branch 250a respectively by one of their ends opposite the end connected to said distribution system 100 at their third and seventh distribution ports 120c, 120a.The first heat transfer fluid arriving at a level of the divergence point 214 can therefore, depending on the positions of the distributing member 10, either pass through the first external exchanger 206 by taking the third branch 250c, or bypass said first external exchanger 206 by taking said seventh branch 250a, before returning to said distribution system 100. .

[0059] In said fourth branch 120e, the first pump 208 and said electrical system heat exchanger 210 are located in series in that order according to the direction of circulation of said first heat transfer fluid from said fourth distribution port 120e to said divergence point 214. According to another embodiment, not shown, said electrical system heat exchanger 210 and said first pump 208 could be located in series in that order according to the direction of circulation of said first heat transfer fluid from said fourth distribution port 120e to said divergence point 214.

[0060] Preferably, said first heat transfer fluid circuit 200 is configured so that said first heat transfer fluid circulates in said second and fifth branches 250b and 250f, from and to distribution system 100, passing through said two-fluid exchanger 204 without passing through either of the pumps 208, 212 of said first circuit of first heat transfer fluid.

[0061] Preferably again, said first heat transfer fluid circuit 200 is configured such that one of the angular positions of the distribution member, said first position, allows the formation of a first loop 200a comprising said first, second, fifth and sixth branches 250d, 250b, 250f, 250g and a second loop 200b comprising said third and fourth branches 250c, 250e. Such a configuration will be discussed below in relation to [Fig. 1].

[0062] Preferably, said device is configured so that said sixth branch 250g supplies said first branch 250d with first heat transfer fluid in all angular positions of said distributing organ 10.

[0063] According to the illustrated embodiment, said first circuit 200 of first heat transfer fluid includes a second pump 212. The latter is located on said first branch 250d. It is positioned here downstream of said heat exchanger 202 of electrical energy storage system in the direction of flow of the first heat transfer fluid in said first and sixth branches 250d, 250g. Alternatively, it is positioned on said sixth branch 250g, in particular downstream of said specific heat exchanger 404 in the direction of flow of the first heat transfer fluid in said first and sixth branches 250d, 250g.

[0064] According to the illustrated embodiment, said second heat transfer fluid circuit 400 comprises a first branch 410a comprising said specific exchanger 404, a second branch 410b, located in parallel with said first branch 410a of said second heat transfer fluid circuit 400, said second branch 410b of the second heat transfer fluid circuit 400 comprising said second bifluid exchanger 402, and a third branch 410c, located in parallel with said first branch 410a of said second heat transfer fluid circuit 400, said third branch 410c of the second heat transfer fluid circuit 400 comprising an exchanger 406, said second external exchanger, intended for heat exchange between said first fluid and said external airflow E.

[0065] Said second external heat exchanger 406 is intended to be located, in particular, at the front of the vehicle so that it is traversed by said external airflow E, said external airflow E having previously passed through the vehicle's grille. Said second external heat exchanger 406 is formed, for example, by a low-temperature radiator. It is intended to be located in series or parallel with the first external heat exchanger 206 in said external airflow E, for example, downstream of said first external heat exchanger 206 according to the direction of flow of said external airflow E.

[0066] Said second heat transfer fluid circuit 400 further comprises a third pump 412. It is located here on the said second branch 410b of the second circuit 400 of heat transfer fluid.

[0067] Said first circuit 200 of first heat transfer fluid or said second circuit 400 of heat transfer fluid further includes a heat exchanger 216, said to be electric, intended to heat said fluid using an electric current.

[0068] According to the illustrated embodiment, the electric heat exchanger 216 is located in the second heat transfer fluid circuit 400. It is located on the second branch 410b, for example, such that the second two-fluid heat exchanger 402 is between the third pump 412 and the electric heat exchanger 216. It heats the heat transfer fluid in the second heat transfer fluid circuit 400. Alternatively, it is located on the first and / or sixth branches 250d, 250g, for example, downstream of the pump 212 and upstream of the specific heat exchanger, depending on the direction of flow of the first heat transfer fluid in the first and sixth branches 250d, 250g.

[0069] According to the illustrated embodiment, said second heat transfer fluid circuit 400 includes a fourth branch 410d, located in parallel with said first branch 410a of said second heat transfer fluid circuit 400.

[0070] Said fourth branch 410d of the second heat transfer fluid circuit 400 includes a heat exchanger 408, referred to as the internal heat exchanger, enabling heat exchange between said heat transfer fluid of said second heat transfer fluid circuit 400 and the internal airflow I. The internal heat exchanger 408 is configured to be positioned in the ventilation, heating and / or air conditioning unit. It is preferably located downstream of said cooling radiator 502 in the direction of circulation of the internal airflow I. It is, for example, a heating radiator.

[0071] It is understood that none of the heat exchangers 408, 502 located in the heating, ventilation and / or air conditioning unit are thus traversed by said refrigerant but by a heat transfer fluid. As already mentioned, this is particularly advantageous when said refrigerant presents risks to the vehicle's passengers, such as high-pressure or flammable refrigerants.

[0072] Said second heat transfer fluid circuit 400 includes one or more valves 414 connecting said first, second, third and / or fourth branches 410a-410d of said second heat transfer fluid circuit 400, here a four-way valve.

[0073] Said refrigerant circuit here includes a main loop 300a. Said main loop 300a includes, according to a direction of circulation of said refrigerant in said main loop, a compressor 302, the second two-fluid heat exchanger 402 and said first two-fluid heat exchanger 204. Said main loop includes a branch 310a, said main, equipped with said compressor 302 and said second two-fluid heat exchanger 402.

[0074] Said refrigerant circuit 300 further includes a first branch 310b, located in parallel with said main branch 310a in said main loop 300a. Said first branch includes said two-fluid cooling exchanger 504. Said first branch 310b further includes a first expansion device 315, located upstream of said two-fluid cooling exchanger 504 in the direction of flow of said refrigerant in said first branch 310b.

[0075] Said refrigerant circuit 300 further includes here a second expansion device 316, located on said main loop 300a upstream of said first two-fluid exchanger 204 according to the direction of circulation of the refrigerant in said main loop 300a.

[0076] In the illustrated example, said refrigerant circuit 300 further includes a heat exchanger, said refrigerant exchanger, configured to allow heat exchange between the refrigerant and itself. The refrigerant passes through said refrigerant exchanger in respective passes, at different pressure levels in each pass, before passing again into the compressor 302. One 312a of the passes, namely the high-pressure pass, is in the main branch 310a downstream of said second two-fluid heat exchanger 402. Another 312b of the passes, namely the low-pressure pass, is in the main branch 300a upstream of said compressor 302.

[0077] Said refrigerant circuit 300 further includes a cylinder 314, for storing said refrigerant. Said cylinder is located in said main branch downstream of the second two-fluid heat exchanger 402 and upstream of the high-pressure pass 312a of said refrigerant heat exchanger, according to the direction of refrigerant flow in said main loop 300a.

[0078] It can be seen that, in these different embodiments, the said refrigerant circuit 300 remains relatively simple. It does not include, for example, a reversible heat exchanger, that is to say, one operating alternately as a condenser and as an evaporator.

[0079] The device according to the invention allows for a very large number of operating modes thanks to the different positions of the distributing member 10.

[0080] Before describing some of them, an example of a distribution system 100 and its distributing member 10, configured to be used according to the device according to the invention, are described below, in relation to figures 7 to 12.

[0081] In [Fig. 7], the longitudinal axis around which said distributor member 10 is intended to be rotationally mobile is shown X. The distributor member 10 comprises a body 12 and may optionally comprise a first plate 14 and a second plate 16, parallel and orthogonal to the longitudinal axis X, connected by the body 12. The body 12 presents lateral edges 18, located in the present example at the level of a fictitious cylinder connecting peripheral edges 20 of the plates 14, 16. It is understood that the first and second plates 14, 16, when present, define a diameter of the distributing member 10.

[0082] The distributor element 10 can be configured to rotate clockwise and / or counterclockwise. The distributor element 10 can be configured to rotate through more than 360°.

[0083] The body 12 of the distributor 10 further has a first fluid distribution channel 22. This first distribution channel 22 extends axially along the longitudinal axis X. This means that the longitudinal axis X of rotation of the distributor 12 passes through the distribution channel 22. Advantageously, the first distribution channel 22 is centered on the longitudinal axis X.

[0084] The body 12 also has a first chamber 24 communicating with the distribution channel 22. This first chamber 24 also opens radially.

[0085] In this way, the angular positions of the body 12 that the distributing member 10 can take determine a passage of the fluid between an inlet and / or outlet channel, called axial 108, and at least one of the inlet and / or outlet channels, called peripheral 110a-110Of, of the distribution system 100 (see figures 9 to 12), through the first chamber 24 and the first distribution channel 22.

[0086] The body 12 of the distributing member 10 may further have one or more second chambers 25a-25c opening radially such that at least some of the angular positions of the body 12 that the distributing member 10 can assume also determine a passage of fluid between different peripheral inlet and / or outlet channels 110a-110 of the valve 100, through one or at least one of the second chambers 25a-25c. In the illustrated examples, there are three second chambers 25a-25c.

[0087] The first chamber 24 and / or said second chamber(s) 25a-25c extend advantageously angularly around the longitudinal axis X.

[0088] The distributing organ 10, in particular the body 12, has a height h, extending along the longitudinal axis X. It is understood that the height h corresponds to a height of the first chamber 24 on the one hand and, on the other hand, when they exist, of the second chamber(s) 25a-25c.

[0089] Advantageously, the first distribution channel 22 communicates with the first chamber 24 over all or part of the height h of the first chamber 24. This communication between the distribution channel 22 and the first chamber 24 is made through an opening 23.

[0090] Furthermore, the distributing member 10, in particular the body 12, advantageously comprises a central portion 26. The body 12 may also comprise branches 28a, 28b connected to each other at the central portion 26. The branches extend forward tageously substantially radially from the central part to the lateral edges 18.

[0091] The chamber(s) 24, 25a-25c are defined between two of the branches. In other words, when the distributing member 10 comprises several chambers 24, 25a-25c, the branches separate the chambers 24, 25a-25c from each other.

[0092] The branches 28a, 28b have walls 30a, 30b which extend along the longitudinal axis X from the first plateau 14 towards the second plateau 16.

[0093] The walls 30a of the branches 28a delimiting the first chamber 24 may be substantially flat. These branches 28a may further have external ends, i.e. opposite the central part 26, having a chamfer 32.

[0094] Here, the angular amplitude of the first chamber 24 is between 35 and 45 degrees.

[0095] The branches 28b delimiting at least one of the second chambers 25a-25c can form a curved bottom 34 at the central part 26. This curved bottom 34 can be concave in order to facilitate the flow of the fluid.

[0096] Here, the angular amplitude of each second chamber 25a-25c is between 70 and 90 degrees.

[0097] Advantageously, at least one of the branches 28b comprises a through channel 36 configured to connect one of the chambers with another of the adjacent chambers, as more particularly shown in [Fig. 7]. With reference to the illustrated example, it is understood that chamber 25c is composed of two half-chambers connected to each other by the through channel 36 to form an enlarged chamber, corresponding to chamber 25c.

[0098] As illustrated in figures 9 to 12, the distribution system 100 is here formed of a valve.

[0099] The valve includes a housing 102 defining a recess 104 for the distributor element 10. It is understood that the recess 104 then has a diameter substantially identical to the diameter of the distributor element 10, with a clearance necessary for the rotation of the distributor element 10 in the recess 104. The lateral edges 18 of the body 12 are located opposite and in the immediate vicinity, within clearance, of an inner face of a lateral wall 106 of the housing 102.

[0100] The housing 102 is provided with peripheral input and / or output channels 110, opening laterally into the housing 104. In the illustrated examples, there are six peripheral input and / or output channels 110a-1 lOf, namely a first input and / or output channel 110a, a second input and / or output channel 110b, a third input and / or output channel 110c, a fourth input and / or output channel 1 lOd, a fifth input and / or output channel 110e and a sixth input and / or output channel 1 lOf.

[0101] Each of the peripheral input and / or output channels 110a-1 lOf is formed as a radial projection on a side wall 106 of the housing 102. Advantageously, the peripheral input and / or output channels 110a-1 lOf are arranged in two diametrically opposed groups. It can be understood, with reference to the figures, that a first group of peripheral input and / or output channels 110a-1 lOf is positioned on one side of the housing, while a second group of peripheral input and / or output channels 110d-1 lOf is positioned diametrically opposite the first group. Each of the first and second groups may comprise three of the peripheral input and / or output channels HOa-1llOf. The peripheral input and / or output channels HOa-1llOf of the same group extend here over an angular interval of at most 120 degrees.

[0102] Depending on its angular position, the first chamber 24 of the distributor is either connected or not to one or more of said peripheral input and / or output channels. Said first chamber 24 is intended to communicate radially with the peripheral input and / or output channels 110a-1 lOf. Advantageously, the first chamber 24 is intended to communicate with at most one of the peripheral channels 110a-1 lOf, regardless of the angular position of the body 12 of the distributor 10.

[0103] The second chamber(s) 25a-25c communicate radially with the peripheral inlet and / or outlet channels HOa-llOf. Advantageously, the second chamber(s) 25a-25c communicate with at most two of the peripheral inlet and / or outlet channels 110a-1 lOf, regardless of the angular position of the body 12 of the distributing member 10.

[0104] The valve 100 may include an actuator, not shown, for example a stepper motor, to drive the distributor member 10 in rotation around the longitudinal axis X. The distributor member 10 may then include a drive shaft, intended to mesh with the actuator.

[0105] The valve 100 may also include a first annular seal 50, located between the distributing member 10 and the inner face of the side wall 106 of the housing 102. This first annular seal 50 advantageously has openings 52 having a contour corresponding to a contour of an opening part of the peripheral inlet and / or outlet channels HOa-llOf in the housing 104. Preferably, the first annular seal 50 is fixedly mounted.

[0106] The valve 100 may further include a plate 112 which is designed to close the housing 102. This plate 112 is mounted orthogonally to the longitudinal axis X of the distributing member 10. The plate 112 may be fixed, in particular welded, to the housing 102. In the embodiment of Figures 8 and 9, the plate 112 is configured to be fixed on a fluid distribution support, not shown, in particular on a housing of such a support.

[0107] The plate 112 advantageously comprises lights 114a-l 14g located in the axial extension of the first distribution channel 22 and / or peripheral input and / or output channels HOa-llOf. Thus, the light 114a is located in the axial extension of the channel 110a, the light 114b in the axial extension of the channel 110b, the light 114c in the axial extension of the channel 110c, the light 114d in the axial extension of the channel 110d, the light 114e in the axial extension of the channel 110e, the light 114f in the axial extension of the channel 110f and the light 114g is located in the axial extension of the first distribution channel 22. The said lights 114a-114g here form the distribution orifices 120a-120g in communication with the branches 250a-250g of the first circuit 200 of the first heat transfer fluid.

[0108] The valve 100 may include a second annular seal 60 configured for sealing with the distribution support. In such a case, the plate 112 advantageously has a groove 116 on one of its outer faces. This groove 116 is designed to accommodate the second annular seal 60. This second seal 60 may be a flat, multi-part seal, for example, one part around each port 114a-114f and one part around the port 114g, as illustrated in the embodiment shown in Figures 9 and 10.

[0109] Alternatively, as shown in Figures 11 and 12, the valve is designed for autonomous use, connected to the circulation hoses of the first fluid. The plate 112 includes an axial inlet and / or outlet conduit 108 communicating with the first channel 22. The plate may also include peripheral inlet and / or outlet conduits 118a-118f communicating respectively with the peripheral inlet and / or outlet channels HOa-11F. The axial inlet and / or outlet conduits 108 or the peripheral inlet and / or outlet conduits 118a-118f open onto the distribution ports 120a-120g, which communicate with the branches 250a-250g of the first heat transfer fluid circuit 200. They may be oriented along the longitudinal axis X and / or bent.

[0110] The plate 112 allows interchangeability of the valve 100 according to the type of distribution support used in a fluid circuit, in particular a heat transfer fluid.

[0111] Referring again to figures 1 to 6, different modes of operation of the device according to the invention will now be described, in relation to respective positionings of said distributing organ 10.

[0112] In [Fig. 1], the illustrated operating mode primarily aims to dissipate the heat released by said heat exchanger 202 of the electrical energy storage system, via said refrigerant circuit 300, and furthermore by dedicating the two-fluid heat exchanger 204 to heat exchange between the refrigerant and the portion of the first heat transfer fluid that has passed through said heat exchanger 202 of the electrical energy storage system. Such an operating mode makes it possible to cool the Batteries during rapid charging phases, which result in significant heating due to the electrical currents involved. Therefore, the heat dissipated in the refrigerant is removed by the second two-fluid heat exchanger 402 into the second heat transfer fluid circuit 400, and then into the external airflow E via the second external heat exchanger 406.

[0113] More specifically, in this first mode of operation, in the first loop 200a of said first circuit 200 of first heat transfer fluid, starting from the sixth distribution port 120g, the first heat transfer fluid passes through said specific heat exchanger 404, which is provided to be inactive due to the absence of heat transfer fluid circulation in said first branch 410a of said second circuit 400 of heat transfer fluid. Said first fluid then passes through said heat exchanger 202 of electrical energy storage system, being driven by the second pump 212, before returning to the distribution system 100 through the first distribution port 120d. In the angular position involved, said distributor 10 connects said first distribution port 120d with the second distribution port 120b.The first heat transfer fluid then continues its path along said first loop 200a, passing through said two-fluid heat exchanger 204 to return to said distribution system 100 via the fifth distribution port 120f. In the angular position in question, said distribution element 10 connects said fifth distribution port 120f with the sixth distribution port 120g to form said first loop 200a. Through said first loop 200a, the heat released by said heat exchanger 202 of the storage system into the first heat transfer fluid can thus be transferred to said two-fluid heat exchanger 204.

[0114] In the second loop 200b of said first circuit 200 of first heat transfer fluid, starting from the fourth distribution port 120e, the first heat transfer fluid is driven by the first pump 208, passes through said electrical system heat exchanger 210, passes through said divergence point 214 and then takes the third branch 250c to pass through said first external heat exchanger 206 before returning to the distribution system 100 through the third distribution port 120c. In the angular position involved, said distribution element 10 connects said third distribution port 120c with the fourth distribution port 120e to form said second loop 200b. It can be seen that, through said second loop 200b, any heat released by said electrical system heat exchanger 210 can thus be transferred to said first external heat exchanger 206 by the first heat transfer fluid.These calories can thus be released into the external airflow E by said first external exchanger 206 without however interfering with the calories released by said electrical storage exchanger 202. since the latter is placed on the first loop 200a.

[0115] In this first mode of operation, it is understood that there is no circulation of the first heat transfer fluid in said seventh branch 250a, the seventh distribution orifice 120a not being connected to any other through said distributing member 10.

[0116] The refrigerant, starting from the compressor 302, circulates in the main loop 300a, passing through the second two-fluid heat exchanger 402 and dissipating its heat in the heat transfer fluid of the second heat transfer fluid circuit 400. It then passes through the second expansion valve 316, which is intended to be active, and the first two-fluid heat exchanger 204, evaporating under the effect of the heat released by the first heat transfer fluid and originating from the heat exchanger 202 of the storage system. The refrigerant then returns to the compressor 302 for a new cycle. It should be noted that the refrigerant does not circulate in the first branch 310b, as the first expansion valve 315 is closed.

[0117] In the second heat transfer fluid circuit 400, the latter circulates in a loop through the second and third branches 410b, 410c to allow the calories captured at the level of said second bi-fluid exchanger 402 to be dissipated in said external air flow E by said second external exchanger 406.

[0118] Alternatively, upon exiting said second branch 410b of the second heat transfer fluid circuit 400, the latter splits to circulate in parallel, on the one hand, in said third branch 410c of the second heat transfer fluid circuit 400 and said fourth branch 410d of the second heat transfer fluid circuit 400 before converging again by rejoining said second branch 410b of the second heat transfer fluid circuit 400. The heat captured at said second two-fluid heat exchanger 402 can thus be dissipated both in said external airflow E by said second external heat exchanger 406 and in said internal airflow I by the internal heat exchanger 408.

[0119] It is noted that said cooling loop 500 is not active.

[0120] In [Fig. 2], the illustrated operating mode allows the electrical energy storage system heat exchanger 202 and the electrical system heat exchanger 210 to be cooled by placing them on the same circulation loop of the first heat transfer fluid, referred to as a single loop, by placing the bi-fluid heat exchanger 204 and the first external heat exchanger 206 on the single loop. The heat released by the storage system heat exchanger 202 and the electrical system heat exchanger 210 can thus be dissipated both in the refrigerant, by the bi-fluid heat exchanger 204, and in the external airflow E, by the first external heat exchanger 206, via the first heat transfer fluid. Furthermore, the power of the pumps 208, 212 is combined. Such an operating mode also allows, if necessary, the passenger compartment to be cooled using the cooling circuit 500. As In the previous embodiment, the calories dissipated in the refrigerant are removed by the second two-fluid exchanger 402 into the second heat transfer fluid circuit 400 and then into the external airflow E by said second external exchanger 406.

[0121] More specifically, in this second operating mode, in the single loop of the first heat transfer fluid, starting from the sixth distribution port 120g, the first heat transfer fluid passes through said specific heat exchanger 404, which is provided to be inactive due to the absence of heat transfer fluid circulation in said first branch 410a of said second heat transfer fluid circuit 400. Said first fluid then passes through said heat exchanger 202 of the electrical energy storage system, driven by the second pump 212, before returning to the distribution system 100 through the first distribution port 120d. In the angular position involved, said distributor 10 connects said first distribution port 120d with the fourth distribution port 120e.The first heat transfer fluid is then driven by the first pump 208, passes through the said electrical system heat exchanger 210, passes through the said divergence point 214, and then takes the third branch 250c to pass through the said first external heat exchanger 206 before returning to the distribution system 100 through the third distribution port 120c. In the angular position in question, the said distribution element 10 connects the said third distribution port 120c with the second distribution port 120b, and the said first heat transfer fluid then continues its path through the said two-fluid heat exchanger 204 to return to the said distribution system 100 through the fifth distribution port 120f. In the angular position in question, the said distribution element 10 connects the said fifth distribution port 120f with the sixth distribution port 120g to form the said single loop.

[0122] In this second mode of operation, as in the previous one, it is understood that there is no circulation of the first heat transfer fluid in said seventh branch 250a, the seventh distribution orifice 120a not being connected to any other through said distributing member 10.

[0123] For its part, the refrigerant circulates in said main loop 300a as well as, possibly, in the first branch of bypass 310b, said first expansion valve 315 then being open and active.

[0124] Thus, starting from the compressor 302, the refrigerant circulates along the main loop 300a, passing through the second two-fluid heat exchanger 402 and dissipating its heat in the heat transfer fluid of the second heat transfer fluid circuit 400. It then passes through the second expansion valve 316, which is intended to be active, and the first two-fluid heat exchanger 204, evaporating under the effect of the heat released by the first heat transfer fluid. The refrigerant then returns to the compressor 302. for a new cycle.

[0125] Alternatively, when the refrigerant reaches the first branch 310b, downstream of said main branch 310a, it divides between said main loop 300a to pass through said first two-fluid heat exchanger 204 and said first branch 310b to pass through said two-fluid cooling heat exchanger 504 before converging again upstream of said main branch 310a. In said first branch 310b, after expansion via the first expansion device 315, said refrigerant passes through said two-fluid cooling heat exchanger 504, absorbing heat from said internal flow I, thereby cooling it, via said cooling radiator 502 and said cooling circuit 500.

[0126] The heat transfer fluid of the second heat transfer fluid circuit 400 circulates in a loop in said second and third branches 410b, 410c of said second heat transfer fluid circuit 400 to dissipate in the external airflow E, by means of said second external exchanger 406, the heat from the refrigerant via the second two-fluid exchanger 402.

[0127] Thus, thanks to said refrigerant circuit 300, the calories released by the first heat transfer fluid in said refrigerant, at the level of said two-fluid exchanger 204, are dissipated in the external airflow E at the level of said second external exchanger 406. At the same time, the internal airflow I is cooled by releasing its calories in said refrigerant through the cooling circuit 500.

[0128] In [Fig.3], the illustrated operating mode allows the passenger compartment to be heated by releasing calories from the refrigerant fluid into the internal airflow I through the internal exchanger 408. Said calories are preferentially derived from heat recovery from the electrical system exchanger 210 and, through the first external exchanger 206, from the external airflow E, provided at a sufficient temperature, this via the first heat transfer fluid and the bi-fluid exchanger 204.

[0129] More specifically, in this third mode of operation, in a first sub-circuit of said first circuit 200 of first heat transfer fluid, starting from the sixth distribution port 120g, the first heat transfer fluid passes through said specific exchanger 404, which is provided to be inactive due to the absence of heat transfer fluid circulation in said first branch 410a of said second circuit 400 of heat transfer fluid. Said first fluid then passes through said heat exchanger 202 of electrical energy storage system, being driven by the second pump 212, before returning to the distribution system 100 through the first distribution port 120d. In the angular position involved, said distributing member 10 directly connects said first distribution port 120d with the sixth distribution port. 120g contribution. The said first sub-circuit thus allows self-heating of the storage system, the first refrigerant circulating in a closed loop without passing through a heat exchanger which would cause an undesired dissipation of the calories released by the said storage system.

[0130] In a second sub-circuit of said first circuit 200 of first heat transfer fluid, starting from the fourth distribution port 120e, the first heat transfer fluid is driven by the first pump 208, passes through said electrical system heat exchanger 210, passes through said divergence point 214 and then takes the third branch 250c to pass through said first external heat exchanger 206 before returning to the distribution system 100 through the third distribution port 120c. In the angular position involved, said distribution member 10 connects said third distribution port 120c with the second distribution port 120b. The first heat transfer fluid then continues its path through said two-fluid heat exchanger 204 to return to said distribution system 100 through the fifth distribution port 120f.In the angular position in question, said distributing member 10 connects said fifth distribution port 120f with the fourth distribution port 120e to form said second sub-circuit. Such circulation allows the heat recovery mentioned above.

[0131] More precisely, such a mode of operation is advantageously used when the temperature of the first heat transfer fluid is below a threshold temperature and the temperature of the external airflow E is above this threshold temperature, the first external heat exchanger 206 then allowing the first heat transfer fluid to recover heat from said warmer external airflow E.

[0132] In this third mode of operation, as in the previous ones, it is understood that there is no circulation of the first heat transfer fluid in said seventh branch 250a, the seventh distribution orifice 120a not being connected to any other through said distributing member 10.

[0133] For its part, the refrigerant, starting from the compressor 302, circulates through said main loop 300a. It is understood, however, that it does not circulate through said first branch of bypass 310b, said first expansion device 315 being provided closed.

[0134] In other words, upon exiting the compressor 302, the refrigerant passes through the second two-fluid heat exchanger 402, condensing and dissipating its heat into the heat transfer fluid of the second circuit 400 of the first heat transfer fluid. It then passes through the second expansion valve 316, which is intended to be active, and the two-fluid heat exchanger 204, evaporating under the effect of the heat released by the first heat transfer fluid. The refrigerant then returns to the compressor 302 for a new cycle.

[0135] Alternatively, the refrigerant circulates alternately or cumulatively in said first branch of bypass 310b with expansion of said refrigerant in said first expansion member 315 for the purpose of dehumidifying the internal airflow I, via said cooling circuit 500.

[0136] In this third mode of operation, said second circuit 400 of heat transfer fluid circulates in a loop in said second and fourth branches 410b, 410d.

[0137] Thus, thanks to said refrigerant circuit 300, the heat released by the first heat transfer fluid in said refrigerant, at said two-fluid heat exchanger 204, is dissipated into the internal airflow I at said second internal heat exchanger 408, via said second two-fluid heat exchanger 402 and the heat transfer fluid of the second heat transfer fluid circuit 400. This allows said internal airflow I to be heated and, consequently, the vehicle passenger compartment.

[0138] In [Fig. 4], the operating mode is identical to the previous one except that, in said first circuit 200 of first heat transfer fluid, said first heat transfer fluid passes through the seventh branch 250a instead of the third branch 250c. For this reason, here, in the angular position in question, said distributing member 10 connects the second distribution port 120b and said seventh distribution port 120a instead of the third distribution port 120c.

[0139] In this fourth operating mode, as in the previous mode, the passenger compartment is heated by releasing heat from the refrigerant into the internal airflow I via the internal heat exchanger 408. This heat is exclusively recovered from the electrical system heat exchanger 210. This fourth operating mode is advantageously used as a replacement for the previous one when the temperature of the outside airflow E is insufficient, particularly when it is below the threshold temperature. The rest of the operation is preferably unchanged.

[0140] In [Fig.5], the illustrated operating mode allows the passenger compartment to be heated by releasing calories from the refrigerant fluid into the internal airflow I through the internal exchanger 408. Said calories are preferentially obtained from heat recovery from the storage system exchanger 202 and the electrical system exchanger 210, via the first heat transfer fluid and the bi-fluid exchanger 204.

[0141] More specifically, in this fifth operating mode, the first heat transfer fluid circulates again in a single loop, but one different from that of the second operating mode. Starting from the sixth distribution port 120g, the first heat transfer fluid passes through said specific heat exchanger 404, which is provided to be inactive due to the absence of heat transfer fluid circulation in said first branch 410a of said second heat transfer fluid circuit 400. Said first fluid passes then, in said heat exchanger 202 of the electrical energy storage system, being driven by the second pump 212, before returning to the distribution system 100 through the first distribution port 120d. In the angular position in question, said distribution member 10 connects said first distribution port 120d with the fourth distribution port 120e. The first heat transfer fluid is then driven by the first pump 208, passes through said heat exchanger 210 of the electrical system, passes through said divergence point 214, and then takes the seventh branch 250a to bypass said first external heat exchanger 206 before returning to the distribution system 100 through the seventh distribution port 120a.In the angular position in question, said distributing member 10 connects said seventh distribution port 120a with the second distribution port 120b and said first heat transfer fluid then continues its path through said two-fluid heat exchanger 204 to return to said distribution system 100 through the fifth distribution port 120f. In the angular position in question, said distributing member 10 connects said fifth distribution port 120f with the sixth distribution port 120g to form said corresponding single loop.

[0142] For its part, the refrigerant circulates in said main loop 300a. It is understood, however, that it does not circulate in said first branch of bypass 310b, said first expansion device 315 being provided closed.

[0143] In other words, upon exiting the compressor 302, the refrigerant passes through the second two-fluid heat exchanger 402, condensing and dissipating its heat into the heat transfer fluid of the second heat transfer fluid circuit 400. It then passes through the second expansion valve 316, which is intended to be active, and the two-fluid heat exchanger 204, evaporating under the effect of the heat released by the first heat transfer fluid. The refrigerant then returns to the compressor 302 for a new cycle.

[0144] Alternatively, the refrigerant circulates alternately or cumulatively in said first branch of bypass 310b with expansion of said refrigerant in said first expansion member 315 for the purpose of dehumidifying the internal airflow I, via said cooling circuit 500.

[0145] In this fifth operating mode, said second heat transfer fluid circuit 400 operates as in the third and fourth operating modes (Figures 3 and 4).

[0146] Thus, thanks to said refrigerant circuit 300, the heat released by the first heat transfer fluid in said refrigerant, at said two-fluid heat exchanger 204, is dissipated into the internal airflow I at said second internal heat exchanger 408, via said second two-fluid heat exchanger 402 and the heat transfer fluid of the second heat transfer fluid circuit 400. This allows to heat said internal airflow I and, consequently, the vehicle's passenger compartment.

[0147] In [Fig. 6], the illustrated operating mode dissipates heat from said electrical system 210 into said refrigerant via a first portion of the first heat transfer fluid passing through said first two-fluid heat exchanger 204. The heat from the refrigerant is used to warm the electrical energy storage system via said second two-fluid heat exchanger 402, said second heat transfer fluid circuit 400, said specific heat exchanger 404, and a second portion of said first heat transfer fluid passing through said heat exchanger 202 of the storage system. This operating mode also allows, if necessary, the passenger compartment to be cooled using said cooling circuit 500.

[0148] More specifically, the circulation of the first heat transfer fluid takes place as in the third and fourth modes of operation (Figures 3 and 4), the only difference being that the specific exchanger 404 is active, the heat transfer fluid of the second heat transfer fluid circuit 400 circulating in said first branch 410a of said second heat transfer fluid circuit 400.

[0149] The circulation of the refrigerant fluid is identical to that described in relation to the second operating mode ([Fig.2]).

[0150] In the second heat transfer fluid circuit 400, the latter circulates in a loop through the first and second branches 410a, 410b to allow the heat from the refrigerant captured at the level of said second two-fluid exchanger 402 to be brought, via said heat transfer fluid of the second heat transfer fluid circuit 400, to the first heat transfer fluid, this at the level of said second sub-loop through said specific exchanger 404.

[0151] As will be understood from the above, when cooling and / or dehumidification of the internal airflow is desired, said third heat transfer fluid circuit 500 is active so that the calories taken from said internal airflow I by said cooling radiator 502 are transferred to said refrigerant via said heat transfer fluid said third heat transfer fluid circuit 500 and said third two-fluid exchanger 504.

[0152] As already stated, the previous modes of operation, even if advantageous, have been given only by way of example, the device according to the invention allowing many other modes, in particular thanks to said multi-way distribution system 100.

Claims

Demands

1. Thermal control device comprising a first circuit (200) of first heat transfer fluid, said first circuit (200) of first heat transfer fluid comprising a distribution system (100) of said first heat transfer fluid having a plurality of distribution orifices (120a-120f) of said first heat transfer fluid, said first circuit (200) of first heat transfer fluid further comprising a plurality of branches (250a-250g) respectively connected to one of said distribution orifices (120a-120g), said distribution system (100) being configured to take different positions respectively intended to make some at least of said branches (250a-250g) communicate with each other, said distribution system (100) comprising a distributor element (10),said distributing member (10) being intended to be mobile in rotation about a longitudinal axis (X) in order to selectively supply said branches (250a-250g) to be connected together according to angular positions of said distributing member (10), at least two (250a, 250g) of said branches being connected to an exchanger (204), said first two-fluid exchanger, intended to exchange heat with a refrigerant, said device further comprising a refrigerant circuit (300) comprising said first two-fluid exchanger (204) as well as another two-fluid exchanger (504), said cooling two-fluid exchanger, intended for heat exchange between said refrigerant and a heat transfer fluid, circulating in a cooling circuit (500), said cooling circuit (500) further comprising a cooling radiator (502),intended for heat exchange between said heat transfer fluid circulating in the cooling circuit (500) and an airflow (I), referred to as internal.

2. Device according to any one of the preceding claims in which, in said first circuit (200) of first heat transfer fluid: - a first (250d) of said branches includes a heat exchanger (202), referred to as an electrical energy storage system, - a second (250b) of said branches is connected to said first two-fluid exchanger (204), - a third (250c) of said branches includes an exchanger (206), called the first external exchanger, intended to exchange heat with a second heat transfer fluid, - a fourth (250e) of said branches includes a first pump (208) and, optionally, a heat exchanger (210), said to be of the electrical system, - a fifth (250f) of said branches is connected to said first two-fluid exchanger (204), - a sixth (250g) of said branches is connected to said electrical energy storage system exchanger (202), and / or - a seventh (250a) of said branches is configured for a bypass of the third branch (250c).

3. Device according to claim 2, wherein the first arm (250d) or the sixth arm (250g) comprises a second pump (212).

4. Device according to any one of the preceding claims in which said refrigerant circuit (300) comprises a main loop (300a) comprising, in a direction of circulation of said refrigerant in said main loop (300a), a compressor (302), a second two-fluid exchanger (402), an expansion member (316) and said first two-fluid exchanger (204), said main loop (300a) comprising a branch (310a), referred to as the main branch, equipped with said compressor (302) and said second two-fluid exchanger (402), said cooling two-fluid exchanger (504) forming a third two-fluid exchanger of said device.

5. Device according to the preceding claim in which said refrigerant circuit (300) comprises a first branch (310b), located in parallel with said main branch (310a), said first branch (310b) comprising said two-fluid cooling exchanger (504).

6. Device according to any one of claims 4 to 5 comprising a second heat transfer fluid circuit (400), said second heat transfer fluid circuit (400) comprising the second two-fluid exchanger (402), said cooling circuit (500) forming a third heat transfer fluid circuit of said device.

7. Device according to the preceding claim comprising a heat exchanger (404), referred to as specific, intended for heat exchange between the first heat transfer fluid and the heat transfer fluid circulating in said second circuit (400).

8. Device according to the preceding claim in which said second heat transfer fluid circuit (400) comprises: - a first branch (410a) comprising said specific exchanger (404), - a second branch (410b), located in parallel with said first branch (410a) of said second heat transfer fluid circuit (400), said second branch (410b) of the second heat transfer fluid circuit (400) comprising said second bi-fluid exchanger (402), - a third branch (410c), located in parallel with said first branch (410a) of said second heat transfer fluid circuit (400), said third branch (410c) of the second heat transfer fluid circuit (400) comprising an exchanger (406), said second external exchanger, intended for heat exchange between said first fluid and an airflow, said external (E).

9. Device according to the preceding claim in which said second circuit (400) of heat transfer fluid comprises a fourth branch (410d), located in parallel with said first branch (410a) of said second circuit (400) of heat transfer fluid, said fourth branch (410d) of the second circuit (400) of heat transfer fluid comprising an exchanger (408), allowing heat exchange between said heat transfer fluid of said second circuit (400) of heat transfer fluid and the internal airflow (I).

10. A device according to any one of the preceding claims, wherein said distributing member (10) comprises a body (12) having: - a first distribution channel (22) for the fluid, extending axially along the longitudinal axis, and - a first chamber (24) communicating with said first distribution channel (22), said first chamber opening radially, such that angular positions of said body (12) determine a passage of the fluid between an inlet and / or outlet channel, said axial (108), and at least one of the inlet and / or outlet channels, said peripheral (110a-110of), of the distribution system (100), through the first chamber (24) and the first distribution channel (22), said body (12) further presenting one or more second chambers (25a-25c) opening radially so that angular positions of said body determine a passage of fluid between different of said peripheral inlet and / or outlet channels (HOa-llOf) of the distribution system (100), through the or at least one of the second chambers.

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