EP4172549A1 - Echangeur thermique pour véhicule automobile - Google Patents
Echangeur thermique pour véhicule automobileInfo
- Publication number
- EP4172549A1 EP4172549A1 EP21733972.0A EP21733972A EP4172549A1 EP 4172549 A1 EP4172549 A1 EP 4172549A1 EP 21733972 A EP21733972 A EP 21733972A EP 4172549 A1 EP4172549 A1 EP 4172549A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- heat exchanger
- duct
- chambers
- circuit
- group
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
- F28F9/02—Header boxes; End plates
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D9/00—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
- F28D9/0031—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one heat-exchange medium being formed by paired plates touching each other
- F28D9/0043—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one heat-exchange medium being formed by paired plates touching each other the plates having openings therein for circulation of at least one heat-exchange medium from one conduit to another
- F28D9/005—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one heat-exchange medium being formed by paired plates touching each other the plates having openings therein for circulation of at least one heat-exchange medium from one conduit to another the plates having openings therein for both heat-exchange media
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D9/00—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
- F28D9/0093—Multi-circuit heat-exchangers, e.g. integrating different heat exchange sections in the same unit or heat-exchangers for more than two fluids
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F27/00—Control arrangements or safety devices specially adapted for heat-exchange or heat-transfer apparatus
- F28F27/02—Control arrangements or safety devices specially adapted for heat-exchange or heat-transfer apparatus for controlling the distribution of heat-exchange media between different channels
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
- F28F9/02—Header boxes; End plates
- F28F9/0246—Arrangements for connecting header boxes with flow lines
- F28F9/0248—Arrangements for sealing connectors to header boxes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
- F28F9/02—Header boxes; End plates
- F28F9/0246—Arrangements for connecting header boxes with flow lines
- F28F9/0251—Massive connectors, e.g. blocks; Plate-like connectors
- F28F9/0253—Massive connectors, e.g. blocks; Plate-like connectors with multiple channels, e.g. with combined inflow and outflow channels
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
- F28F9/02—Header boxes; End plates
- F28F9/0246—Arrangements for connecting header boxes with flow lines
- F28F9/0256—Arrangements for coupling connectors with flow lines
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
- F28F9/02—Header boxes; End plates
- F28F9/026—Header boxes; End plates with static flow control means, e.g. with means for uniformly distributing heat exchange media into conduits
- F28F9/0263—Header boxes; End plates with static flow control means, e.g. with means for uniformly distributing heat exchange media into conduits by varying the geometry or cross-section of header box
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
- F28F9/02—Header boxes; End plates
- F28F9/026—Header boxes; End plates with static flow control means, e.g. with means for uniformly distributing heat exchange media into conduits
- F28F9/027—Header boxes; End plates with static flow control means, e.g. with means for uniformly distributing heat exchange media into conduits in the form of distribution pipes
- F28F9/0275—Header boxes; End plates with static flow control means, e.g. with means for uniformly distributing heat exchange media into conduits in the form of distribution pipes with multiple branch pipes
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
- F28D2021/0019—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
- F28D2021/0068—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for refrigerant cycles
- F28D2021/007—Condensers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
- F28D2021/0019—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
- F28D2021/008—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for vehicles
- F28D2021/0084—Condensers
Definitions
- the present invention relates to the field of heat exchangers for motor vehicles. It finds a privileged, but not exclusive, application to heat exchangers used in the air conditioning circuits of such vehicles.
- the present invention relates more particularly to heat exchangers which include a first circuit configured to convey a coolant liquid and a second circuit configured to convey a refrigerant fluid. More precisely, the present invention relates to such exchangers in which the second circuit comprises at least two successive passes of refrigerant fluid, and in which the first circuit comprises a plurality of chambers divided into several groups of chambers. The heat exchanger is then configured to implement a heat exchange between the heat transfer liquid circulating in at least one of the groups of rooms and the refrigerant fluid circulating in at least one of the passes of the second circuit.
- the term “pass” is understood here to mean distinct regions of the second circuit of the heat exchanger configured so that the refrigerant fluid circulates successively within them.
- the passes of the second circuit can be arranged in such a way that the refrigerant fluid circulates in parallel with each other.
- the refrigerant fluid is admitted into a first pass of the second circuit in gaseous form, then, circulating successively in the various passes of the second circuit, in contact with the different groups of chambers of the first circuit in which the coolant circulates, it is gradually condensed, until it leaves the exchanger in liquid form.
- the technical problem to which the present invention aims to propose a solution is that of the efficiency of the heat exchange in the different passes of the second circuit, in particular in the regions of the heat exchanger in which the physical transformation takes place. condensation chemical refrigerant fluid.
- the present invention relates, according to a first aspect, to a heat exchanger for a motor vehicle, comprising: a first circuit intended to be traversed by a heat transfer liquid and comprising a first inlet manifold through which the coolant liquid is admitted into the first circuit and a first outlet manifold through which the coolant liquid leaves the first circuit, the first circuit comprising a plurality of chambers fluidly connected to the first inlet manifold and to the first outlet manifold and divided into at least a first group of chambers and a second group of chambers, a second circuit intended to be traversed by a refrigerant fluid and comprising a second inlet manifold through which the refrigerant fluid is admitted into the exchanger thermal and a second outlet manifold through which the refrigerant fluid leaves the heat exchanger, the second circuit co taking at least two successive passes, the heat exchanger being configured to implement a heat exchange between the coolant circulating in at least one of the groups of chamber
- the presence of the aforementioned differentiating member results in different flow speeds of the coolant between the groups of chambers concerned. This results in a differentiation of the duration of the heat exchange carried out between the heat transfer liquid circulating in these groups of chambers and the refrigerant fluid circulating in the corresponding passes of the second circuit.
- the invention thus achieves the aim it had set itself, by making it possible, in particular, to increase a duration of the heat exchange between the coolant liquid. circulating in a group of chambers in which the flow rate of this heat transfer liquid is lower and the refrigerating fluid circulating in a pass of the second circuit in contact with this group of chambers.
- each chamber is delimited by at least two plates, each plate comprising a bottom wall surrounded by a raised edge, the bottom wall being provided with at least one opening which at least partially delimits the first inlet manifold, the two plates being arranged one inside the other.
- the bottom walls of the plates delimiting the chambers of the first circuit have a generally substantially planar shape.
- the heat exchanger according to the invention therefore consists of a stack of plates as described above in a stacking direction substantially perpendicular to a general main direction of extension of the bottom wall of each of these plates. It follows that the first inlet manifold mentioned above is formed by the stack of the aforementioned openings, pierced in the bottom walls of the plates delimiting the chambers of the first circuit.
- the first inlet manifold for the coolant liquid in the first circuit of the exchanger according to the invention is therefore substantially in the form of a duct which extends through the heat exchanger according to the invention.
- the openings made in the bottom walls of the plates constituting the heat exchanger according to the invention are arranged such that the aforementioned first inlet manifold extends substantially perpendicular to the walls. bottom of the plates which delimit the chambers of the first circuit and, therefore, substantially parallel to the direction of stacking of the aforementioned plates.
- the first inlet manifold comprises a first conduit supplying the first group of chambers and a second conduit supplying the second group of chambers, the differentiation member comprising a second passage section of the chamber.
- second duct lower than a first passage section of the first duct.
- passage section a surface area of a section of the conduit considered, measured along a plane substantially perpendicular to the main direction of extension of the latter. It therefore follows from the above that the flow rate of heat transfer liquid circulating in the second conduit of the first inlet manifold is less than the flow rate of heat transfer liquid circulating in the first conduit of the first inlet manifold.
- a ratio between the second passage section of the second duct and the first passage section of the first duct is between 0.4 and 0.8.
- the bottom walls of the at least two plates each comprise at least a first opening and a second opening, respectively constituting the first duct and the second duct of the first inlet manifold.
- the second passage section is defined by at least one of the second openings made in the plate.
- first passage section and the second passage section are respectively defined by the dimensions of at least one of the openings made in the aforementioned plate or plates.
- first passage section is defined by the first opening mentioned above
- second passage section is defined by the second opening defined above.
- the differentiation member is formed by at least a second opening constituting the second duct.
- the differentiator comprises all of the second openings of the second duct.
- the element for differentiating the flow rate of coolant liquid is therefore materialized here by the difference in passage section between the first opening and the second opening.
- the organ of differentiation corresponding to the second passage section of at least one of the second openings, less than the first passage section of one of the first openings.
- the differentiation of the coolant flow rate between the first duct and the second duct of the first inlet manifold results from the geometry of the plates forming the first circuit and the dimensions of the openings arranged in the bottom walls of these plates.
- all the second openings defining the second duct of the first inlet manifold may have the same passage section, substantially equal to the second passage section previously mentioned.
- the coolant liquid flow differentiator is then defined by the set of second openings which define the second duct.
- only one of the second openings participating in defining the second duct has a passage section substantially equal to the second passage section previously mentioned.
- the heat exchanger comprises at least one coolant liquid supply unit, the supply unit being fluidly connected to the first inlet manifold which comprises a first duct supplying the first group of chambers and a second conduit supplying the second group of chambers.
- the first duct and the second duct therefore together form the first inlet manifold defined above.
- the passage sections of the first duct and of the second duct are substantially equal.
- the invention provides that the power supply unit comprises a first channel supplying the first duct and a second channel supplying the second duct of the first inlet manifold, the differentiation member comprising a second passage section of the second channel, less than a first passage section of the first channel.
- a ratio between the second passage section of the second channel and the first passage section of the first channel is between 0.4 and 0.8.
- the first coolant liquid circuit comprises a third group of chambers fluidly connected to the first duct of the first inlet manifold and to the first outlet manifold, successively to the first group of chambers, the control member. differentiation of the coolant liquid flow rate comprising at least a third passage section of the first duct arranged between the first group of chambers and the third group of chambers, the third passage section being smaller than the first passage section of the first duct.
- a ratio between the third passage section of the first duct and the first passage section of the first duct is substantially between 0.4 and 0.8.
- the passage section of the first duct according to the invention is reduced in the third group of chambers of the first circuit. This makes it possible to further increase the residence time of the heat transfer liquid in the third group of chambers of the first circuit, and, therefore, the duration and the efficiency of the heat exchange between the refrigerant fluid circulating in the second circuit and the liquid. coolant circulating in the third group of chambers.
- At least one of the first openings constituting the first duct has the third passage section.
- the invention also extends to a heat treatment system for a motor vehicle comprising at least one heat exchanger according to any one of the preceding characteristics.
- the heat transfer liquid is glycol water.
- FIG 1 is a general schematic perspective view of an exemplary embodiment of a heat treatment system according to the invention.
- FIG 2 is a schematic sectional view along a vertical and transverse plane of the heat exchanger of Figure i showing a first embodiment of the invention
- FIG 3 is a schematic sectional view along a vertical and transverse plane of the heat exchanger of Figure 1 according to a second embodiment of the invention
- FIG 4 is a schematic sectional view along a vertical and transverse plane of the heat exchanger of Figure 1 according to a third embodiment of the invention.
- FIG. 1 schematically illustrates in perspective a heat treatment system 500 according to the invention.
- Such a heat treatment system 500 comprises in particular a heat exchanger 100 configured to be the site of a heat exchange between a coolant liquid and a coolant fluid both circulating within it.
- the heat transfer liquid is glycol water.
- the heat transfer liquid and the coolant are not shown in the figures.
- the heat exchanger 100 comprises a first circuit 110 in which the heat transfer liquid is conveyed and a second circuit 120 in which the refrigerant fluid is conveyed, the first circuit 110 and the second circuit 120 being, within the heat exchanger 100, in contact with each other in such a way that a heat exchange between heat transfer liquid and refrigerant fluid can occur.
- the first circuit no of the heat exchanger 100 extends between a first inlet manifold 1 through which the heat transfer liquid is admitted into the first circuit no of the heat exchanger Ioo and a first outlet manifold 2 through which the liquid. coolant leaves the first circuit no of the heat exchanger 100.
- the second circuit 120 of the heat exchanger 100 comprises a second inlet manifold 3 through which the refrigerant fluid is admitted into the second circuit 120 of the heat exchanger 100 and a second outlet manifold 4 through which the refrigerant fluid leaves the second circuit 120 of the heat exchanger 100.
- the heat exchanger 100 comprises a power supply unit 5 through which the heat transfer liquid enters the first inlet manifold 1, defined above.
- the power supply unit 5 is therefore fluidly connected to the first inlet manifold 1.
- the heat exchanger 100 also comprises an outlet unit 50, fluidically connected to the first outlet manifold 2, and via which the heat transfer liquid leaves the heat exchanger 100.
- the refrigerant, admitted into the heat exchanger 100 in essentially gaseous form, is, during its passage through the heat exchanger 100, progressively condensed by heat exchange with the heat transfer liquid, until it leaves the heat exchanger 100 in essentially liquid form.
- the refrigerant in liquid form is received and stored in a condensation bottle 200 arranged in the vicinity of the heat exchanger 100.
- the latter makes several passages in the second circuit 120, successively in contact with different regions of the first circuit 110.
- the different regions, distinct, of the second circuit 120, in which the refrigerant circulates successively, will be, in what below, designated by the term "passes" of the second circuit 120 of the heat exchanger 100.
- FIG. 2 illustrates schematically, in section along a vertical and transverse plane A visible in FIG. 1, a heat exchanger 100 according to a first embodiment of the invention.
- the first inlet manifold 1 previously defined, configured for the admission of the coolant in the first circuit 110 of the heat exchanger 100.
- the block of supply 5 as previously defined, configured to allow the entry of the coolant liquid into the first circuit 110.
- the heat exchanger 100 is formed by a stack of N plates 6a, ... 6i, 6j, ... 6n, in a stacking direction E arbitrarily designated in the following as direction vertical V of the heat exchanger 100 and represented by the axis V in FIG. 2. It should be noted that the vertical direction V of the heat exchanger 100 is arbitrary with regard to a vertical direction of a motor vehicle in which is placed a heat treatment system as described above and comprising the heat exchanger 100.
- each plate 6a, ..., 6i, 6j, ... 6n, of the heat exchanger 100 is formed of a bottom wall 60a, ..., 6oi, 6oj, .. 6on, the general shape of which is substantially planar, surrounded by a raised edge 61a, ... 611, 6ij, ... 6m, the dimensions of which, measured perpendicularly to the main extension plane of the bottom wall 60a,. .., 6oi, 6oj, ..., 6on, are small compared to the dimensions of the latter. Only two plates 6i, 6j, their bottom walls 6oi, 6oj, and their raised edges 611, 6ij, are identified in Figure 2.
- the bottom walls 60a, ..., 6oi, 6oj, ... 6on are substantially perpendicular to the vertical direction V of the heat exchanger 100, previously defined, and substantially parallel to a plane P defined by a longitudinal direction L and a transverse direction T, respectively arbitrarily designated as longitudinal direction and as the transverse direction of the heat exchanger 100.
- the plates 6a, ..., 6i, 6j, ... 6n define two by two of the chambers 7a, ... 71, 7], ..., 7h, of the first circuit 110 of the heat exchanger 100, that is to say of the chambers configured to convey the heat transfer liquid within the heat exchanger 100.
- FIG. 2 Only one chamber 71, delimited by the plates 6i, 6j, is shown in FIG. 2.
- each bottom wall 60a, ..., 6oi, 6oj, ..., 6on comprises at least one opening 62a, ..., 621, 62j, ..., 62h, which at least partially delimits the first inlet manifold 1.
- the first inlet manifold 1 of the first circuit 110 thus extends substantially over the entire dimension of the heat exchanger 100 in the vertical direction V of the latter, previously defined, and it is formed by the stack of the aforementioned openings 62a, ..., 621, 62j, ... 62h.
- the chambers 7a, ..., 71, 7 j, ..., 7h, of the first circuit 110 are organized in groups of chambers independent of each other, in which the heat transfer liquid circulates successively.
- the rooms 7a, ..., 71, 7j, ..., 7h, of the first circuit 110 are organized in a first group of rooms 75 and in a second group of rooms 76, each group of rooms 75, 76 , being, within the heat exchanger 100, in contact with a pass, as previously defined, of the second circuit 120 of the heat exchanger 100.
- first group of chambers 75 is in contact with a first passes, not shown, of the second circuit 120
- second group of chambers 76 is in contact with a second pass, not shown, of the second circuit 120 and distinct from the first pass.
- the first group of chambers 75 and the second group of chambers 76 are schematically mentioned in figure 2.
- the inlet manifold i comprises a first conduit Io and a second conduit n.
- the first duct io extends substantially over the entire dimension of the heat exchanger Ioo in the vertical direction V of the latter, previously defined.
- the second duct n extends substantially over one half of the dimension of the heat exchanger Ioo in the vertical direction V of the latter.
- the first duct io is formed by the stack, in the vertical direction V of the heat exchanger Ioo, of first openings 63a, ..., 631, 63], ...
- the bottom wall 60a, ..., 6oi, 6oj, ..., 6on, of each plate 6a, ..., 6i, 6j,. .., 6n, forming the heat exchanger 100 is pierced with at least a first opening 63a, ..., 631, 63], ..., 63h and at least a second opening 64a, ... , 641, 64], ..., 64h, which together respectively define the first duct 10 and the second duct 11 of the first inlet manifold 1.
- the first duct 10 of the first inlet manifold 1 is configured to supply the first group of chambers 75 as defined above with heat transfer liquid
- the second duct 11 of the first inlet manifold 1 is configured to supply in heat transfer liquid the second group of chambers 76 as defined above.
- a first passage section 150 of the first duct 10 is greater than a second passage section 160 of the second duct 11, the passage section being here defined in a plane substantially perpendicular to the main direction d extension of the considered conduit. More specifically, the invention provides that a ratio between the second passage section 160 and the first passage section 150 is between 0.4 and 0.8.
- the power supply unit 5 comprises, on the one hand, a first channel 50 fluidly connected to the first duct 10 of the first manifold. inlet 1, and, on the other hand, a second channel 51 fluidly connected to the second duct 11 of the first inlet manifold 1.
- the first duct 10 and the second duct 11 each have a substantially cylindrical shape, the axis of elongation of which is substantially parallel to the vertical direction V, previously defined, of the heat exchanger 100.
- the passage sections 150, 160 can be represented by the diameters respectively of the first duct 10 and of the second duct 11, measured perpendicular to the vertical direction V of the heat exchanger 100. More generally , the passage sections 150, 160, are to be understood as the surfaces of a projection, respectively, of the first duct 10 and of the second duct 11, on a plane perpendicular to the vertical direction V of the heat exchanger 100.
- first passage section 150 is defined by at least one of the first openings 63a, ..., 631, 63], ..., 63h of the first duct 10 and that the second passage section 160 is defined by at least one of the second openings 64a, ..., 641, 64], ..., 64h made in the plate 6a, ..., 6i, 6j, ..., 6n.
- the flow rate of heat transfer liquid which circulates in the second duct 11 is less than the flow rate of heat transfer liquid which circulates in the first conduit 10.
- the second passage section 160 previously defined, smaller than the first passage section 150 therefore forms a member 155 for differentiating the flow of coolant liquid within the heat exchanger 100.
- the member 155 for differentiating the flow rate of the coolant liquid is formed here by at least one of the second openings 64a, 641, 64], ..., 64h, participating in defining the second duct 11 of the first inlet manifold 11, which comprises the second passage section 160 lower than the first passage section 150 of the first duct 10 of the first inlet manifold 1.
- the differentiation member 155 is formed by one of the second openings 64a, ..., 641, 64], ..., 64h of the second duct 11.
- the member of differentiation can be defined by the set of second openings 64a, ..., 641, 64], ..., 64h of the second duct 11.
- FIG. 3 illustrates schematically, in section along the vertical and transverse plane A visible in FIG. 1, a second embodiment of a heat exchanger 100 according to the invention.
- the heat exchanger 100 comprises the power supply unit 5 which comprises the first channel 50 fluidly connected to the first duct 10 of the first inlet manifold 1 and the second channel 51 fluidly connected to the second duct 11 of the first inlet manifold 1.
- At least one of the first openings 631 ', 63j', which participate in defining, in the plates 6a, ..., 6i, 6j, ..., 6n, the first duct 10, has a third passage section 170 smaller than the first passage section 150 of the first duct 10.
- the first duct 10 of the first inlet manifold 1 comprises a first portion 10a of which a passage section is substantially equal to the first passage section 150 mentioned above, and a second portion 10b of which a passage section is less than the aforementioned first passage section 150 and substantially equal, except for manufacturing tolerances, to the third passage section 170 previously mentioned.
- a ratio between the third passage section 170 and the first passage section 150 is between 0.4 and 0.8.
- one or more of the plates 6a, ..., 6i, 6j, ..., 6n forming the second portion 10b of the first duct 10 has a first opening 631 ', 63 ] ', the passage section of which is substantially equal to the third passage section 170 previously mentioned.
- only one of the first openings 631 ', 63]', arranged in the plates 6a, ..., 6i, 6j, ..., 6n, forming the second portion 10b of the first duct 10 has a passage section equal to the third passage section 170, or several, or even all of the first openings 631 ', 63]', arranged in the plates 6a, ..., 6i, 6j,. .., 6n, forming the second portion 10b of the first duct 10 have a passage section equal to the third passage section 170.
- the first circuit 110 comprises the third group of chambers 77 which is fluidly connected to the first conduit 10 of the first inlet manifold 1, successively to the first group of chambers 75, and that the third passage section 170 of the first duct 10, arranged between the first group of chambers 75 and the third group of chambers 77, forms part of the differentiation member 155 previously defined.
- the invention can provide, on the one hand, that the first group of chambers 75 of the first circuit 110 of the heat exchanger 100 is in contact with a first pass of the second circuit 120, in which the refrigerant fluid circulates in essentially gaseous form, on the other hand, that the second group of chambers 76 of the first circuit 110 of the heat exchanger 100 is in contact with a second pass of the second circuit 120, in which the refrigerant fluid passes to the liquid state, and that the third group of chambers 77 of the first circuit 110 of the heat exchanger 100 is in contact with a third pass of the second circuit 120, in which the refrigerant fluid circulates in liquid form and is sub-cooled by the coolant, the temperature of the coolant in the liquid state being lowered below its saturation temperature.
- FIG. 4 illustrates schematically, in section along the vertical and transverse plane A visible in FIG. 1, a third exemplary embodiment of the invention.
- This figure illustrates more particularly the power supply unit 5, previously defined, of the heat exchanger 100 according to the invention, as well as the first channel 50 and the second channel 51, previously described, of this power supply unit 5.
- the invention provides that the differentiation member 155, previously defined, is provided on the first channel 50, fluidly connected to the first duct 10 of the first inlet manifold 1. , and by the second channel 51 of the power supply unit 5, fluidly connected to the second duct 11 of the first inlet manifold 1.
- the invention provides, according to this example, that the first channel 50 of the power supply unit 5 has a first passage section 500, and that the second channel 51 has a second passage section 510, the first passage section. passage 500 of the first channel 50 being greater than the second passage section 500 of the second channel 510. A ratio between the second passage section 500 of the second channel 51 and the first passage section 500 of the first channel 50 being between 0.4 and 0.8.
- the differentiation member 155 is formed by the second passage section 160 of the second channel 51 lower than the first passage section 500 of the first channel 50.
- the differentiation member is therefore here carried by the block d 'power supply 5, and not arranged, as in the previous examples, within the openings 62a, ..., 621, 62j, ... 62h of the plates 6a,
- Such an arrangement has an advantage in terms of cost, insofar as it makes it possible to combine the advantages of the invention with a standardization of all the plates 6a, ..., 6i, 6j, ..., 6n, which form the heat exchanger 100. In fact, it is then no longer necessary to differentiate the manufacture of different sets of plates having different openings delimiting the different ducts of the first inlet manifold 1, the differentiation of flow rate between the aforementioned ducts being carried out upstream of the heat exchange zone, when the coolant liquid enters the inlet manifold 1, consisting of conduits 10, 11, previously described.
- Such an arrangement also reduces the risks of assembly error when stacking different sets of plates 6a, ..., 6i, 6j, ..., 6n, having openings 63a, ... , 631, 63], ..., 63h, 64a, ..., 641,
- the invention makes it possible, by simple means, to differentiate the flow of heat transfer liquid between different regions of the first circuit 110 of the heat exchanger 100, in order to differentiate the duration of the heat exchange carried out between this heat transfer liquid and the coolant circulating in the second circuit 120 of the heat exchanger 100, and thus increase the efficiency of this exchange in predefined regions of the heat exchanger 100.
- this differentiation of the flow rate of the coolant liquid within the heat exchanger 100 of a thermal system 500 such as that illustrated in FIG. 1 results only from the geometry of the plates 6a, ..., 6i, 6j , ..., 6n, which constitute the heat exchanger 100, and, in particular, the dimensions of the openings which, drilled in these plates, delimit, in the latter, the first inlet manifold 1 through which the heat transfer liquid is admitted in the first circuit 110 of the heat exchanger 100.
- the implementation of the invention proves to be therefore of great simplicity and very low cost, insofar as it only requires a modification of the dimensions of one or more of the openings arranged in these plates to delimit the first inlet manifold 1.
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Geometry (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
- Air-Conditioning For Vehicles (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR2006807A FR3111971B1 (fr) | 2020-06-29 | 2020-06-29 | Echangeur thermique pour véhicule automobile |
| PCT/EP2021/066457 WO2022002617A1 (fr) | 2020-06-29 | 2021-06-17 | Echangeur thermique pour véhicule automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4172549A1 true EP4172549A1 (fr) | 2023-05-03 |
Family
ID=73642981
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP21733972.0A Withdrawn EP4172549A1 (fr) | 2020-06-29 | 2021-06-17 | Echangeur thermique pour véhicule automobile |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20230288146A1 (fr) |
| EP (1) | EP4172549A1 (fr) |
| CN (1) | CN115769041A (fr) |
| FR (1) | FR3111971B1 (fr) |
| WO (1) | WO2022002617A1 (fr) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR3124588B1 (fr) * | 2021-06-29 | 2023-11-24 | Valeo Systemes Thermiques | Echangeur thermique pour véhicule automobile |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5462113A (en) * | 1994-06-20 | 1995-10-31 | Flatplate, Inc. | Three-circuit stacked plate heat exchanger |
| US5964280A (en) * | 1996-07-16 | 1999-10-12 | Modine Manufacturing Company | Multiple fluid path plate heat exchanger |
| SE514096C2 (sv) * | 1999-05-17 | 2001-01-08 | Alfa Laval Ab | Plattvärmeväxlare |
| SE514092C2 (sv) * | 1999-05-20 | 2001-01-08 | Alfa Laval Ab | Anordning för behandling av en gas |
| DE10328746A1 (de) * | 2003-06-25 | 2005-01-13 | Behr Gmbh & Co. Kg | Vorrichtung zum mehrstufigen Wärmeaustausch und Verfahren zur Herstellung einer derartigen Vorrichtung |
| US7753105B2 (en) * | 2006-05-16 | 2010-07-13 | Delphi Technologies, Inc. | Liquid cooled condenser having an integrated heat exchanger |
| EP2629040B1 (fr) * | 2012-02-14 | 2020-07-29 | MAHLE International GmbH | Climatiseur à pompe à chaleur unitaire comportant un échangeur de chaleur avec un récepteur monobloc et refroidisseur secondaire |
| JP6164837B2 (ja) * | 2012-12-26 | 2017-07-19 | カルソニックカンセイ株式会社 | 蒸発器構造 |
| KR101526427B1 (ko) * | 2014-06-23 | 2015-06-05 | 현대자동차 주식회사 | 차량용 열교환기 |
| JP6760226B2 (ja) * | 2017-07-31 | 2020-09-23 | 株式会社デンソー | 複合型熱交換器 |
| JP2019152367A (ja) * | 2018-03-02 | 2019-09-12 | パナソニックIpマネジメント株式会社 | 熱交換器ユニットおよびそれを用いた空気調和機 |
| KR20200057857A (ko) * | 2018-11-16 | 2020-05-27 | 현대자동차주식회사 | 차량용 냉각 장치 |
-
2020
- 2020-06-29 FR FR2006807A patent/FR3111971B1/fr not_active Expired - Fee Related
-
2021
- 2021-06-17 US US18/013,390 patent/US20230288146A1/en not_active Abandoned
- 2021-06-17 WO PCT/EP2021/066457 patent/WO2022002617A1/fr not_active Ceased
- 2021-06-17 EP EP21733972.0A patent/EP4172549A1/fr not_active Withdrawn
- 2021-06-17 CN CN202180046169.9A patent/CN115769041A/zh active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| US20230288146A1 (en) | 2023-09-14 |
| WO2022002617A1 (fr) | 2022-01-06 |
| CN115769041A (zh) | 2023-03-07 |
| FR3111971A1 (fr) | 2021-12-31 |
| FR3111971B1 (fr) | 2022-08-05 |
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