Fluidic connection organ

Abstract

The invention relates to a fluidic connection element (1) formed in a monobloc manner, and configured to be fluidically connected to a two-fluid heat exchanger (80) configured to allow the flow of a refrigerant, such as 1234yf or R290, and the flow of a heat transfer fluid, in particular water-based, and the fluidic connection element (1) being suitable for being mounted, in particular by brazing, to the two-fluid heat exchanger, the fluidic connection element (1) having at least one connection port for the refrigerant, and at least one connection port for the heat transfer fluid, these connection ports being configured to allow the connection of the two-fluid heat exchanger (80), via the fluidic connection element (1), to at least one surrounding fluidic component, for example a refrigerant or heat transfer fluid circulation unit, a receiver drier (90) or a pipe. Figure for the abridged version: Fig. 1

Description

Title of the invention: Fluidic connection element

[0001] The present invention relates in particular to a fluidic connection element, as well as a sub-assembly and an assembly for a thermal conditioning system comprising such an element.

[0002] In known water-cooled condensers with refrigerant and heat transfer fluid circulation (e.g., glycol water), the heat transfer fluid outlet may be located close to the refrigerant connections for a receiver drier. Problems may arise in managing the connections of these various fluid inlets / outlets, which are located in a small space.

[0003] The invention aims in particular to remedy these problems.

[0004] The invention thus relates to a fluidic connection element configured to allow the flow of a refrigerant, such as 1234yf or R290, and the flow of a heat transfer fluid, in particular water-based (in particular called "coolant" in English), and the fluidic connection element being configured to be fluidically connected to a two-fluid heat exchanger (80) and suitable for being mounted, in particular by brazing, to the two-fluid heat exchanger, the fluidic connection element having at least one connection port for the refrigerant, and at least one connection port for the heat transfer fluid, these connection ports being configured to allow the connection of the two-fluid heat exchanger, via the fluidic connection element, to at least one surrounding fluidic component, for example a refrigerant or heat transfer fluid circulation unit (also called "manifold" in English),a desiccant bottle (or "receiver dryer" in English) or tubing.

[0005] The fluidic connection element thus forms a fluidic connection interface to allow the connection of the two-fluid heat exchanger to at least one surrounding fluidic component, for example a refrigerant circulation unit (also called a "manifold" in English), and / or a receiver dryer and / or a pipe.

[0006] Preferably, the fluidic connection element is formed as a single piece.

[0007] Preferably, the fluidic connection element is mounted in a non-removable manner (particularly by brazing), on the bi-fluid heat exchanger, namely in an irreversible way, unlike for example a fixing by screw or by clamping which allows to be mounted and dismounted, according to the needs.

[0008] According to one aspect of the invention, the two-fluid heat exchanger is a water condenser. The water condenser allows transferring heat from the refrigerant to the heat transfer fluid (e.g., glycol water). This allows the refrigerant to change from a gaseous to a liquid state (condensation).

[0009] The invention is particularly advantageous in that it allows for a single fluid connection element that serves for both types of fluids (refrigerant and heat transfer fluid, for example, water). The invention saves space with a single fluid connection element.

[0010] The invention also relates to a sub-assembly for a thermal conditioning system, the sub-assembly comprising the fluidic connection element as mentioned above, and the two-fluid heat exchanger, the fluidic connection element being fluidically connected to the two-fluid heat exchanger, and the fluidic connection element being mounted, in particular by brazing, to the two-fluid heat exchanger.

[0011] According to one aspect of the invention, the fluidic connection element comprises a plurality of internal channels, including at least one first internal channel for the refrigerant and at least one second internal channel for the heat transfer fluid.

[0012] According to one aspect of the invention, the first internal channel extends between one of the connection ports of the fluidic connecting member and a first fluid orifice on a main face of the two-fluid heat exchanger, and the second internal channel extends between another of the connection ports of the fluidic connecting member and a second fluid orifice on the main face of the two-fluid heat exchanger.

[0013] For example, the fluidic connection element is brazed onto the two-fluid heat exchanger, in particular onto the main face of the two-fluid heat exchanger including the fluid ports. The brazing can be done with a plated metal or a brazing ring on the two-fluid heat exchanger.

[0014] According to one aspect of the invention, the fluidic connection element is in the form of a block, for example made of aluminum, and the internal channels are formed within the block. This block can, in particular, be machined to form the internal channels.

[0015] According to one aspect of the invention, the fluidic connection element comprises two connection ports for the refrigerant to a desiccant bottle.

[0016] According to one aspect of the invention, the fluidic connection member comprises a third internal channel, one of the first internal channel and the third internal channel being used to bring refrigerant into a desiccant bottle and the other of the first internal channel and the third internal channel being used to evacuate refrigerant from the desiccant bottle.

[0017] Thus the refrigerant can flow from the two-fluid heat exchanger to the desiccant bottle and back to the two-fluid heat exchanger.

[0018] According to one aspect of the invention, the internal channels are configured to be in fluidic communication with the surrounding fluidic component, in particular a desiccant bottle, via the connection ports of the fluidic connection organ.

[0019] According to one aspect of the invention, the second internal channel for the heat transfer fluid opens onto the connection port configured to allow the attachment of a surrounding fluidic component, for example by screwing or tightening, possibly with the interposition of a sealing gasket.

[0020] According to one embodiment of the invention, the fluidic connection element is flat and arranged parallel or perpendicular to the main face of the two-fluid heat exchanger.

[0021] The invention further relates to an assembly for a thermal conditioning system comprising a sub-assembly as mentioned above, the assembly further comprising a surrounding fluidic component.

[0022] According to one aspect of the invention, the surrounding fluidic component is a desiccant bottle and the fluidic connection member has two connection ports for the refrigerant to the desiccant bottle.

[0023] According to one aspect of the invention, the fluidic connection member connects to a main face of the two-fluid heat exchanger, on a contact area with a surface area less than 50%, or less than 25% or 15%, of the surface area of ​​the main face of the two-fluid heat exchanger.

[0024] In other words, the fluidic connection element has relatively small dimensions compared to those of the main face of the two-fluid heat exchanger.

[0025] According to one aspect of the invention, the fluidic connection member is arranged along a short side of the rectangle that forms the perimeter of the main face of the fluidic connection member.

[0026] According to one aspect of the invention, the fluidic connection element is located inside the perimeter of the main face of the two-fluid heat exchanger when the fluidic connection element is observed in a direction perpendicular to the main face of the two-fluid heat exchanger.

[0027] According to one aspect of the invention, the desiccant bottle has a height chosen so as to leave a portion of the main face of the two-fluid heat exchanger free, a portion which receives a connection port separate from the fluid connection element. This separate connection port allows, for example, the connection for the heat transfer fluid entering the two-fluid heat exchanger.

[0028] Where applicable, the invention allows for a desiccant bottle to be positioned as close as possible to the two-fluid heat exchanger (for example, the water condenser), thanks to the fluidic connection element. The invention enables satisfactory integration of the two-fluid heat exchanger with the desiccant bottle.

[0029] According to one aspect of the invention, the fluidic connection member is configured to mechanically support the desiccant bottle.

[0030] In other words, the fluidic connection element serves as a support for the desiccant bottle.

[0031] The fluidic connection element thus serves both for the fluidic connection between the two-fluid heat exchanger, in particular a water condenser, and the desiccant bottle, and also as a mechanical support for the desiccant bottle.

[0032] According to one aspect of the invention, the fluidic connection member has a mounting face configured to receive the desiccant bottle.

[0033] According to one aspect of the invention, the mounting face is flat, and in particular perpendicular to the main face of the two-fluid heat exchanger.

[0034] Thus the desiccant bottle can be positioned to be opposite the main face of the two-fluid heat exchanger, in particular with a relatively small space between this main face of the two-fluid heat exchanger and the desiccant bottle.

[0035] This helps to reduce the overall size.

[0036] According to one aspect of the invention, the internal channels extend, at least in part, substantially parallel to the mounting face of the fluidic connection member.

[0037] According to one aspect of the invention, the internal channels extend, at least in part, in a substantially parallel manner to each other.

[0038] According to one aspect of the invention, the fluidic connection element is in the form of a block, for example in aluminium, and the internal channels are made within the block, and the mounting face is one of the faces of the block, in particular the face of the block which has the largest surface area.

[0039] According to one aspect of the invention, the fluidic connection element has three connection ports, one for the heat transfer fluid and the other two for the refrigerant.

[0040] According to one aspect of the invention, the fluidic connection element is configured so that the plurality of internal channels are arranged in a row.

[0041] According to one aspect of the invention, the fluidic connection member has connection ports for the refrigerant which are on the mounting face, the fluidic connection and the mechanical mounting of the desiccant bottle taking place on the mounting face of the fluidic connection member.

[0042] According to one aspect of the invention, the fluidic connection member and the desiccant bottle mounted on it are both inscribed within the perimeter of the main face of the two-fluid heat exchanger.

[0043] According to another aspect of the invention, the fluidic connection member is configured to ensure fluidic connection with one or more surrounding fluidic components, without serving as mechanical support for a surrounding fluidic component, for example for a desiccant bottle.

[0044] In this case, the fluidic connection element may have relatively small dimensions, and in particular the internal channels are relatively short.

[0045] According to one aspect of the invention, one of the connection ports of the fluidic connection member is located opposite an associated fluid orifice which is on a main face of the two-fluid heat exchanger.

[0046] The refrigerant and / or the heat transfer fluid thus travel a short distance within the fluidic connection element.

[0047] According to one aspect of the invention, the fluidic connection element serves primarily for connection with one or more surrounding fluidic components.

[0048] According to one aspect of the invention, the majority of the connection ports of the fluidic connection element are arranged on a face of the fluidic connection element opposite to an associated fluid orifice located on a main face of the two-fluid heat exchanger.

[0049] According to one aspect of the invention, when the two-fluid heat exchanger is viewed in a direction perpendicular to its main face, one of the connection ports of the fluidic connection member is offset relative to a fluid orifice (on the two-fluid heat exchanger) associated with it, so that an internal channel of the fluidic connection member makes the fluidic connection between the fluid orifice on the two-fluid heat exchanger and the connection port of the fluidic connection member, in particular parallel to the main face of the two-fluid heat exchanger.

[0050] In this case, the connection port of the fluidic connection element is not located opposite an associated fluid orifice which is on a main face of the two-fluid heat exchanger.

[0051] According to one aspect of the invention, the fluidic connection element comprises an internal fluid channel that is either angled or straight. The fluidic connection element has an elbow. The fluidic connection element has an L-shape. Optionally, an internal channel extends along one arm of the L-shaped fluidic connection element.

[0052] According to one aspect of the invention, the fluidic connection member comprises three connection ports in total, including two connection ports for the refrigerant and one connection port for the heat transfer fluid.

[0053] The invention thus makes it possible to relocate the connection port of the fluidic connection element to a suitable location to allow a fluidic connection with a surrounding fluidic component.

[0054] According to one aspect of the invention, the L-shaped fluidic connection element is located within the perimeter of the main face of the two-fluid heat exchanger. The L-shaped fluidic connection element is situated opposite a corner of the main face of the two-fluid heat exchanger.

[0055] According to another aspect of the invention, the fluidic connection member comprises four connection ports, among which are two connection ports for the refrigerant to a desiccant bottle, an additional connection port for the refrigerant as an inlet or outlet of the two-fluid heat exchanger, and a connection port for the heat transfer fluid.

[0056] According to one aspect of the invention, the additional connection port is located outside the periphery of a main face of the two-fluid heat exchanger. In other words, this additional connection port is not located inside the periphery of a main face of the two-fluid heat exchanger.

[0057] According to one aspect of the invention, the fluidic connection element has a substantially T-shaped form.

[0058] According to one aspect of the invention, the two connection ports for the refrigerant to a desiccant bottle are located on the middle branch of the T.

[0059] According to one aspect of the invention, the additional connection port for the refrigerant and the connection port for the heat transfer fluid are located respectively at the ends of the transverse branch of the T.

[0060] According to one aspect of the invention, the middle branch is located along a short side of the main face.

[0061] According to one aspect of the invention, the fluidic connection member includes an additional connection port for the heat transfer fluid, so that the fluidic connection member includes in total two additional connection ports for the heat transfer fluid.

[0062] According to one aspect of the invention, a total of five connection ports are provided on the fluidic connection element.

[0063] According to one aspect of the invention, a tube, in particular reported, allows the refrigerant to be brought from the two-fluid heat exchanger to the additional refrigerant connection port.

[0064] According to one aspect of the invention, the fluidic connection member forms a fixing interface for all the fluid orifices of the two-fluid heat exchanger.

[0065] According to one aspect of the invention, the fluidic connection element is connected with a refrigerant circulation unit (also called a "manifold" in English), a receiver dryer, or tubing.

[0066] According to one aspect of the invention, the fluidic connection element is connected with a heat transfer fluid sub-assembly which carries several fluidic components (also called Hub in English).

[0067] Other features, details and advantages of the invention will become clearer upon reading the following description on the one hand, and several illustrative and non-limiting examples of embodiments given with reference to the accompanying schematic drawings on the other hand, in which:

[0068] [Fig-1] The [Fig. 1] is a perspective representation of an assembly for a refrigerant and heat transfer fluid circuit according to an example of an embodiment of the invention;

[0069] [Fig.2] The [Fig.2] is a perspective representation of the whole of the [Fig.1], without the desiccant bottle;

[0070] [Fig.3] The [Fig.3] is a perspective representation of the fluidic connection element of the assembly of the [Fig.1];

[0071] [Fig.4] The [Fig.4] is a perspective representation of an assembly for a refrigerant and heat transfer fluid circuit according to another embodiment of the invention;

[0072] [Fig.5] The [Fig.5] is a perspective representation of the fluidic connection element of the assembly of the [Fig.4];

[0073] [Fig.6] The [Fig.6] is a perspective representation of the two-fluid heat exchanger of the whole of the [Fig.4];

[0074] [Fig.7] The [Fig.7] is a perspective representation of an assembly for a refrigerant and heat transfer fluid circuit according to yet another embodiment of the invention;

[0075] [Fig.8] The [Fig.8] is a perspective representation of the fluidic connection element of the assembly of the [Fig.7].

[0076] The features, variants, and different embodiments of the invention can be combined in various ways, provided they are not incompatible or mutually exclusive. In particular, variants of the invention may be conceived comprising only a selection of features, described hereafter in isolation from the other described features, if this selection of features is sufficient to confer a technical advantage and / or to differentiate the invention from the prior art.

[0077] Figure [1] shows an assembly 100 for a refrigerant circuit configured to use a refrigerant, for example a refrigerant of type R1234yf.

[0078] Alternatively, the refrigerant could be of the hydrocarbon type, in particular propane also designated as refrigerant fluid R290, or any other type of refrigerant.

[0079] The refrigerant circuit, integrated into a heat pump system (which is an example of a thermal conditioning system), for example of indirect type, is configured to be mounted on a motor vehicle.

[0080] The refrigerant circuit includes an electric type compressor (not shown), configured to compress the refrigerant circulating in the refrigerant circuit.

[0081] The assembly 100 comprises a two-fluid heat exchanger 80 and a fluidic connection element 1 according to an embodiment of the invention. The fluidic connection element 1 and the two-fluid heat exchanger 80 together form a subassembly 50.

[0082] The heat exchanger 80 is a two-fluid type, in this case a water condenser. The water condenser 80, which includes internal heat exchange plates, transfers heat from the refrigerant to a heat transfer fluid (for example, glycol water). This allows the refrigerant to change from a gaseous to a liquid state (condensation).

[0083] The fluid connection member 1 is brazed onto a main face 81 of this two-fluid heat exchanger 80. The main face 81 comprises a first fluid port 82 and a third fluid port 83 for the circulation of the refrigerant and a second fluid port 84 for the circulation of the heat transfer fluid. The fluid connection member 1 is fluidly connected to the first fluid port 82, the second fluid port 84, and the third fluid port 83.

[0084] The fluidic connection member 1 is connected with a desiccant bottle 90 (or “receiver dryer” in English).

[0085] In the present embodiment of the invention illustrated in figures 1 to 3, the fluidic connection member 1 is formed as a single unit, and has two connection ports 2 and 3 (inlet / outlet) for the refrigerant, these connection ports 2, 3 being configured to allow the connection of the fluidic connection member 1 to the desiccant bottle 90.

[0086] The fluidic connection element 1 further includes a connection port 4 for the heat transfer fluid, this connection port 4 being configured in particular to be connected to a tube (not shown), for example via a quick connection system and / or with o-rings.

[0087] The invention is particularly advantageous in that it allows for a single fluid connection element 1 that serves for both types of fluids (refrigerant and heat transfer fluid). The invention saves space with a single fluid connection element 1.

[0088] The fluidic connection member 1 comprises a plurality of internal channels, namely a first internal channel 5 for the refrigerant and a second internal channel 7 for the heat transfer fluid.

[0089] In the example described, the fluidic connection member 1 preferably includes a third internal channel 6 for the refrigerant, and the first internal channel 5 serves to bring refrigerant into the desiccant bottle 90 and the third internal channel 6 serves to evacuate refrigerant from the desiccant bottle 90.

[0090] Thus the refrigerant can flow from the two-fluid heat exchanger 80 to the desiccant bottle 90 and back to the two-fluid heat exchanger 80.

[0091] The internal channels 5, 6, 7 respectively extend between the connection ports 2, 3, 4 of the fluidic connection member 1 and the first fluid orifice 82, third fluid orifice 83, and second fluid orifice 84 on the main face 81 of the two-fluid heat exchanger 80.

[0092] The fluidic connection member 1 thus forms a fluidic connection interface to allow the connection of the two-fluid heat exchanger 80 to surrounding fluidic components, here the desiccant bottle 90 and a tube.

[0093] The fluidic connection element 1 is in the form of an aluminum block, and the internal channels 5, 6, 7 are made within the block.

[0094] The second internal channel 7 for the heat transfer fluid opens onto the connection port 4 which is configured to allow the attachment of a connecting pipe, by screwing, with the possible interposition of a sealing gasket.

[0095] The fluidic connection member 1 connects to the main face 81 of the two-fluid heat exchanger 80, on a contact area with a surface area less than 50%, or less than 25% or 15%, of the surface area of ​​the main face of the heat exchanger 80.

[0096] In other words, the fluidic connection element 1 has relatively small dimensions compared to those of the main face 81 of the two-fluid heat exchanger 80.

[0097] The fluidic connection member 1 is arranged along a short side 85 of the rectangle which forms the perimeter 86 of the main face 81 of the fluidic connection member 1.

[0098] The fluidic connection member 1 is located within the perimeter 86 of the main face 81 of the two-fluid heat exchanger 80 when the fluidic connection member 1 is observed in a direction perpendicular to the main face 81 of the heat exchanger 80.

[0099] More generally, the fluidic connection member 1 and / or the desiccant bottle 90 are located within the periphery 86 of the main face 81 of the two-fluid heat exchanger 80 when the fluidic connection member 1 and the dehydrating bottle 90 are observed in a direction perpendicular to the main face 81 of the two-fluid heat exchanger 80.

[0100] The desiccant bottle 90 has a height chosen so as to leave a portion of the main face 81 of the two-fluid heat exchanger 80 free, a portion which receives a connection port 88 distinct from the fluidic connection member 1. This distinct connection port 88 allows, for example, the connection for the heat transfer fluid entering the two-fluid heat exchanger 80.

[0101] Where appropriate, the invention allows a desiccant bottle 90 to be located as close as possible to the two-fluid heat exchanger 80 (for example, the water condenser), thanks to the fluidic connection element 1. The invention allows for satisfactory integration of the two-fluid heat exchanger 80 with the desiccant bottle 90, in particular compact.

[0102] In the example described, the fluidic connection member 1 is configured to mechanically carry the desiccant bottle 90.

[0103] In other words, the fluidic connection member 1 serves as a support for the desiccant bottle 90.

[0104] The fluidic connection member 1 thus serves both for the fluidic connection between the two-fluid heat exchanger 80, in particular a water condenser, and the desiccant bottle 90, and also as a mechanical support for the desiccant bottle 90.

[0105] The fluidic connection member 1 has a mounting face 17 configured to receive the desiccant bottle 90.

[0106] Preferably, assembly 100 is configured so that this mounting face 17 is horizontal, when assembly 100 is mounted horizontally on a vehicle.

[0107] The mounting face 17 is flat, and perpendicular to the main face 81 of the two-fluid heat exchanger 80.

[0108] Thus the desiccant bottle 90 can be arranged to be opposite the main face 81 of the two-fluid heat exchanger 80, with a relatively small space between this main face 81 of the heat exchanger 80 and the desiccant bottle 90.

[0109] This helps to reduce the overall size of assembly 100.

[0110] The internal channels 5, 6, 7 extend, in part, substantially parallel to the mounting face 17 of the fluidic connection member 1. The internal channels 5, 6 also have a 90° turn to join the connection ports 2 and 3, on the mounting face 17.

[0111] The internal channels 5, 6, 7 extend, at least in part, in a substantially parallel manner to each other.

[0112] The mounting face 17 is the face of the block which has the largest surface area.

[0113] The connection ports 2, 3 for the refrigerant which are on the mounting face 17 allow the fluid connection to be made at the same time as the mechanical mounting of the desiccant bottle 90 on the mounting face 17 of the fluid connection member 1.

[0114] The fluidic connection member 1 and the desiccant bottle 90 which is mounted on it are both inscribed inside the perimeter 86 of the main face 81 of the bi-fluid heat exchanger 80.

[0115] We will now describe, with reference to figures 4 to 6, another example of an embodiment of the invention.

[0116] In this example, the fluidic connection member 41 is configured to ensure the fluidic connection of several surrounding fluidic components, without serving as a mechanical support for a surrounding fluidic component, for example for a desiccant bottle 90.

[0117] In this case, the fluidic connection element 41 may have relatively small dimensions, and the internal channels 42, 43, 44 are relatively short.

[0118] In the example described, the fluidic connection element 41 is generally flat in shape.

[0119] The internal channels 42, 43 are dedicated to the refrigerant, like the internal channels 5, 6.

[0120] The internal channel 44 is dedicated to the heat transfer fluid, like the internal channel 7.

[0121] The connection ports 45, 46, 47 of the fluidic connection member 41 are arranged on a face 48 of the fluidic connection member 41 opposite the associated fluid orifices 82, 83, 84 (clearly visible on [Fig.6]) located on the main face 81 of the two-fluid heat exchanger 80.

[0122] When the two-fluid exchanger is viewed in a direction perpendicular to its main face 81, one of the connection ports, namely the connection port 47, of the fluidic connection member 41 is offset relative to the fluid orifice 84 (on the two-fluid heat exchanger 80) which is associated with it (in other words, with which it communicates fluidly), so that the internal channel 44 of the fluidic connection member 41 makes the fluidic connection between the fluid orifice 84 on the two-fluid heat exchanger 80 and the connection port 47 of the fluidic connection member 41 parallel to the main face 81 of the two-fluid exchanger 80.

[0123] In this case, the connection port 47 of the fluidic connection member 41 is not located opposite an associated fluid orifice 84 which is on a main face 81 of the heat exchanger 80.

[0124] The fluidic connection member 41 has an overall L-shaped form and the internal channel 44, which is straight, extends along one of the straight branches of the L of the fluidic connection member 41.

[0125] The internal channel 44 is formed by a straight cavity in the fluidic connection member 41, a cavity which comes to press against the main face 81 of the bi-fluid heat exchanger 80.

[0126] The fluidic connection member 41 has three connection ports 45, 46, 47 in total, including two connection ports for the refrigerant and one connection port for the heat transfer fluid.

[0127] The invention thus makes it possible to relocate the connection port 47 of the fluidic connection member 41 to a suitable location to allow a fluidic connection with a surrounding fluidic component.

[0128] The L-shaped fluid connection member 41 is located within the perimeter 86 of the main face 81 of the two-fluid heat exchanger. The L-shaped fluid connection member 41 is situated opposite a corner 89 of the main face 81 of the two-fluid heat exchanger 80.

[0129] We will now describe, with reference to figures 7 and 8, another example of an embodiment of the invention.

[0130] In this example, the fluidic connection member 51 has five connection ports, among which are two connection ports 52, 53 for the refrigerant to a desiccant bottle 90, an additional connection port 54 for the refrigerant as an inlet or outlet of the two-fluid heat exchanger 80, and two connection ports (inlet and outlet) 55, 56 for the heat transfer fluid.

[0131] The additional connection port 54 is located outside the perimeter 86 of the main face 81 of the two-fluid heat exchanger 80. In other words, this additional connection port 54 is not inscribed within the perimeter 86 of a main face 81 of the two-fluid heat exchanger 80.

[0132] The fluidic connection member 51 comprises a main portion which has a substantially T-shaped form.

[0133] The two connection ports 52, 53 for the refrigerant to a desiccant bottle 90 are located on the middle branch 58 of the T.

[0134] The additional connection port 54 for the refrigerant and the connection port 55 for the heat transfer fluid are located on the transverse branch 59 of the T.

[0135] The middle branch 58 is located along a small side 85 of the main face 81.

[0136] The fluidic connection member 51 comprises in total two connection ports 55, 56 for the heat transfer fluid.

[0137] The connection port 55 communicates with an internal channel 62, similar to the internal channel 44 described previously.

[0138] A tube 60 allows the refrigerant to be brought from the two-fluid heat exchanger 80, via a fluid connection 61 on the fluid connection member 51, to the additional refrigerant connection port 54. The tube 60 extends generally perpendicularly to the transverse branch 59 of the T.

[0139] The fluidic connection member 1 forms a fixing interface for all the fluid orifices of the two-fluid heat exchanger 80.

Claims

Demands

1. A fluid connection element (1; 41; 51) formed as a single unit and configured to allow the flow of a refrigerant, such as 1234yf or R290, and the flow of a heat transfer fluid, in particular a water-based fluid, the fluid connection element (1; 41; 51) being configured to be fluidically connected to a two-fluid heat exchanger (80) and capable of being mounted, in particular by brazing, to the two-fluid heat exchanger, the fluid connection element (1; 41; 51) having at least one connection port (2, 3) for the refrigerant and at least one connection port (4) for the heat transfer fluid, these connection ports being configured to allow the connection of the two-fluid heat exchanger (80), via the fluid connection element (1; 41; 51), to at least a surrounding fluidic component, for example a refrigerant or heat transfer fluid circulation unit, a desiccant bottle (90) or a tube.

2. Subassembly (50) for a thermal conditioning system, the subassembly comprising the fluidic connection member (1; 41; 51) according to the preceding claim and the two-fluid heat exchanger (80), the fluidic connection member (1; 41; 51) being fluidically connected to the two-fluid heat exchanger (80), and the fluidic connection member (1; 41; 51) being mounted, in particular by brazing, to the two-fluid heat exchanger.

3. Subassembly according to the preceding claim, wherein the fluidic connection member (1; 41; 51) comprises a plurality of internal channels (5, 6, 7), of which at least one first internal channel (5) for the refrigerant and at least one second internal channel (7) for the heat transfer fluid.

4. Subassembly according to the preceding claim, wherein the first internal channel (5) extends between one of the connection ports of the fluidic connecting member and a first fluid orifice (82) on a main face (81) of the two-fluid heat exchanger, and the second internal channel (7) extends between another of the connection ports of the fluidic connecting member and a second fluid orifice (84) on the main face (81) of the two-fluid heat exchanger (80).

5. Subassembly according to any one of claims 3 and 4, wherein the second internal channel (7) for the heat transfer fluid opens onto the connection port (4) configured to allow the attachment of a surrounding fluidic component, for example by screwing or tightening, possibly with the interposition of a sealing gasket.

6. Subassembly according to any one of claims 2 to 5, wherein the fluidic connecting member (1; 41) is located within the perimeter (86) of the main face (81) of the two-fluid heat exchanger (80) when the fluidic connecting member is viewed in a direction perpendicular to the main face (81) of the two-fluid heat exchanger.

7. Subassembly according to any one of claims 2 to 6, wherein the fluidic connection member (1) is configured to mechanically carry the desiccant bottle (90), and the fluidic connection member has a mounting face (17) configured to receive the desiccant bottle (90).

8. A subassembly according to any one of claims 2 to 7, wherein, when viewed from a direction perpendicular to its main face (81) is the two-fluid heat exchanger (80), one of the connection ports (47) of the fluidic connection member (41) is offset from a fluid orifice (84) on the associated two-fluid heat exchanger, such that an internal channel (44) of the fluidic connection member enables the fluidic connection between the fluid orifice (84) on the two-fluid heat exchanger (80) and the connection port (47) of the fluidic connection member, in particular parallel to the main face (81) of the two-fluid heat exchanger.

9. Subassembly according to any one of claims 2 to 8, wherein the fluidic connecting member (41) has an L-shape, and in particular an internal channel (44) extends along a branch of the L-shaped fluidic connecting member.

10. Subassembly according to any one of claims 2 to 8, wherein the fluidic connection member (51) has a substantially T-shaped form, and the two connection ports (52, 53) for the refrigerant to a desiccant bottle (90) are located on the middle branch of the T.

11. A subassembly according to any one of claims 2 to 8, wherein the fluidic connection member comprises four connection ports, including two connection ports (52, 53) for the refrigerant to a desiccant bottle (90), an additional connection port (54) for the refrigerant as an inlet or outlet of the two-fluid heat exchanger, and a connection port (55) for the heat transfer fluid, a tube (60), in particular brought in to bring the refrigerant from the two-fluid heat exchanger to the additional connection port (54) of the refrigerant.

12. Assembly (100) for a thermal conditioning system comprising a subassembly (50) according to any one of claims 2 to 11, the assembly further comprising a surrounding fluidic component, the surrounding fluidic component being a desiccant bottle (90) and the fluidic connection member having two connection ports (2, 3) for the refrigerant to the desiccant bottle (90).

13. Assembly according to the preceding claim, wherein the fluidic connection member comprises a third internal channel (6), one of the first internal channel (5) and the third internal channel (6) serving to bring refrigerant into the desiccant bottle (90) and the other of the first internal channel (5) and the third internal channel serving to evacuate refrigerant from the desiccant bottle (90).

14. Assembly according to any one of claims 12 and 13, wherein the fluidic connection member (1) has connection ports (2, 3) for the refrigerant which are on the mounting face (17), the fluidic connection and the mechanical mounting of the desiccant bottle (90) taking place on the mounting face of the fluidic connection member.

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