EP4581320A1 - Systeme de connexion fluidique pour un echangeur de chaleur - Google Patents
Systeme de connexion fluidique pour un echangeur de chaleurInfo
- Publication number
- EP4581320A1 EP4581320A1 EP23762192.5A EP23762192A EP4581320A1 EP 4581320 A1 EP4581320 A1 EP 4581320A1 EP 23762192 A EP23762192 A EP 23762192A EP 4581320 A1 EP4581320 A1 EP 4581320A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- stud
- connection system
- ear
- tubing
- heat exchanger
- 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.)
- Pending
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
- F28F9/0246—Arrangements for connecting header boxes with flow lines
- F28F9/0251—Massive connectors, e.g. blocks; Plate-like connectors
-
- 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
- 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
- F28F9/0256—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
- F28F9/0246—Arrangements for connecting header boxes with flow lines
- F28F9/0256—Arrangements for coupling connectors with flow lines
- F28F9/0258—Arrangements for coupling connectors with flow lines of quick acting type, e.g. with snap action
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F2230/00—Sealing means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F2275/00—Fastening; Joining
- F28F2275/08—Fastening; Joining by clamping or clipping
- F28F2275/085—Fastening; Joining by clamping or clipping with snap connection
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F2275/00—Fastening; Joining
- F28F2275/14—Fastening; Joining by using form fitting connection, e.g. with tongue and groove
- F28F2275/146—Fastening; Joining by using form fitting connection, e.g. with tongue and groove with bayonet connections
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F2275/00—Fastening; Joining
- F28F2275/20—Fastening; Joining with threaded elements
Definitions
- the present invention relates to the field of cooling circuits in particular for motor vehicles and relates more precisely to a fluid inlet or outlet connection system making it possible to connect a heat exchanger to such a circuit.
- the heat exchangers fitted to the air conditioning loops of vehicles are arranged to allow the adjacent circulation in two separate spaces of two different fluids, so as to carry out a heat exchange between these fluids, without mixing them.
- the fluids circulate under pressure.
- connection block limits the design possibilities, in particular the shape of the orifices in the connection block. It is indeed difficult to machine non-straight holes in the connection block.
- the orifices of the plate bundle collector take up a significant amount of space in the corners of the cheek 6, the surface of the connection block that must be brazed to the edges of the corners of the cheek 6 may prove insufficient to carry out this brazing.
- the current manufacture of the connection blocks of such heat exchangers requires heavy and complex brazing tools, in particular for brazing together the bundles of such heat exchangers with their connection blocks, due to the size of the brazing furnace required. and solder brackets which must be adapted to the different locations and connection blocks to allow their assembly on the harnesses. The number of plates in the bundle is then limited to allow flat brazing of the device.
- the present invention at least partly remedies the drawbacks of the prior art, by providing a connection system for a heat exchanger, a heat exchanger and a method of assembling the connection system according to the invention, which allow a great freedom of design of the fluidic connections of the heat exchanger.
- connection system for a heat exchanger, the connection system comprising:
- a tube mounted watertight on the metal structure, forming a connection with the fluid inlet or outlet port, the tube comprising at least one ear,
- FIG. 4 represents in perspective a connection system according to the invention, in the first embodiment of the invention.
- FIG. 6 represents in perspective a connection system according to the invention in a second embodiment of the invention
- the studs 26 and 28 serve to position a tube 34 of the connection system 20 according to the invention, shown in Figure 4, on the complementary plate 24.
- the tube 34 has two ears 342 and 344 in which are inserted respectively the stud 28 and the stud 26.
- the tubing 34 is preferably made of synthetic material, that is to say from polymers (plastic material). Alternatively, the tubing 34 is made of aluminum or another metal.
- the plate Additional 24 is not necessary.
- the metal studs allowing the tubing to be positioned are therefore directly brazed or welded to the cheek 22.
- the tube 34 comprises a base portion 346, as shown in Figure 5, and a connection portion 348 extending axially the base portion 346.
- axially we mean in an axial direction parallel to the longitudinal direction of the studs 26, 28, that is to say in the direction of flow of the refrigerant fluid in the tubing 34.
- the base portion 346 is pressed against the complementary plate 24 via a sealing member (not shown), in particular a seal mounted in a groove 345 dug in the contact surface of the base portion 346 with the complementary plate 24.
- the sealing member is an overmolding made on this contact surface.
- the internal section of the base portion 346 is identical or substantially identical to the shape of the orifice 32, that is to say that the internal section of the base portion 346 and orifice 32 overlap exactly, or within one or two millimeters.
- This internal section extends over a height, that is to say in the axial direction, of 2.5 to 13 millimeters from the external surface of the base portion 346 on which the sealing member is mounted, up to the connection portion 348.
- the internal section of the base portion 346 is triangular, while the internal section of the connection portion 348 is circular.
- These internal sections of the connection portion 348 and the base portion 346 are connected by a wall substantially orthogonal to the axial direction, so as to form a pre-chamber inside the portion of base 346.
- substantially orthogonal we mean orthogonal with a tolerance of plus or minus five degrees of deviation with a strictly orthogonal direction. This pre-chamber makes it possible to improve the distribution of the refrigerant fluid in the plate bundle of the heat exchanger.
- the internal section of the base portion 346 is of a different shape, for example rectangular or circular.
- the connection portion 348 being intended to receive a hose, the end of which is made of aluminum and has a seal, the shape of the section of the connection portion 348 is preferably circular.
- the connection system 20 comprises a device 40 for maintaining the tubing 34 in compression against the complementary plate 24, as shown in Figure 4
- This device for maintaining compression 40 comprises, in this first embodiment of the invention, two clips 36 and 38.
- the arms of each of these clips 36, 38 are housed at the same time in each of the respective ears 344 and 342 , and in respective circular grooves 282 and 262 of the studs 28 and 26, these circular grooves being visible in Figure 2.
- the two arms of each clip 36, 38 are mounted by sliding in two through orifices 3442 (visible Figure 5) of each of the ears 344 and 342, once these are mounted on the studs 26, 28.
- the free ends of the arms of the clips 36, 38 are folded, as visible in Figure 4, which makes it possible to lock maintaining the tubing 34 in compression on the complementary plate 24.
- the device for maintaining compression 40 includes a threaded hole 284 on the stud 28.
- the hose connecting to the tubing 34 has a protrusion , for example an ear, which a screw (not shown) of the compression maintaining device 40 passes through by screwing into the threaded hole 284.
- This screw therefore makes it possible to hold the hose against the tubing 34 which maintains it in compression against the complementary plate 24.
- this screw presses the protrusion of the hose against a surface 3422 of the ear 342.
- the ear 342 extends axially up to the complementary plate 24 to allow this compression of the hose against the ear 342, to compress the ear 342 against the complementary plate 24.
- An orifice 347 in the ear 342 of the tubing 34 makes it possible to angularly position the protrusion of the hose on the ear 342 to allow this screwing, the protrusion of the hose comprising a positioning pin complementary to this orifice 347.
- connection system 20 forming a fluid connection with the orifice 30, includes a compression maintaining device similar to the compression maintaining device 40.
- the compression holding device 40 comprises only one of the clips 36, 38, or only the threaded hole 284 and the screw for holding the hose against the ear 342, or a threaded hole in each of the studs 26 , 28, these threaded holes each cooperating with a protrusion and a screw holding the hose against the ear 342, or a combination of these possibilities.
- connection system 20 a method of assembling the connection system 20 according to the invention, relative to the first embodiment of the invention, on a bundle of plates of a heat exchanger, relative to the tubing 34 only for simplicity. This process includes the following steps:
- the first step is the positioning of the complementary plate 24 on the cheek 22 of the heat exchanger using the collars 222 and 224.
- the next step is the brazing of the heat exchanger equipped with the cheek 22 on which the complementary plate 24 and the studs 26, 28 are positioned.
- the assembly cheek 22, complementary plate 24 and studs 26, 28 is positioned on the heat exchanger plate bundle.
- the next step is the positioning of the tubing 34 on the orifice 32 by inserting the studs 28, 26 into the respective ears 344, 342.
- the next step is the compression of the ears 344, 342 along the studs 28, 26 and the blocking along these studs 28, 26, of these ears held in compression, by mounting the respective clips 38, 36 in the through holes 3442 of the ears 344 and 342 and in the circular grooves 282 and 262.
- the next step is locking this compression support by folding the free ends of the clips 28, 36.
- the last step is possibly a check of the tightness of the connection system 20.
- the first steps are of course the positioning of the studs in the collars 222, 224, then the brazing of the heat exchanger equipped with the cheek 22 and the studs 26 , 28.
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
- Details Of Heat-Exchange And Heat-Transfer (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR2208602A FR3139191B1 (fr) | 2022-08-29 | 2022-08-29 | Système de connexion fluidique pour un échangeur de chaleur |
| PCT/EP2023/073329 WO2024046891A1 (fr) | 2022-08-29 | 2023-08-25 | Systeme de connexion fluidique pour un echangeur de chaleur |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4581320A1 true EP4581320A1 (fr) | 2025-07-09 |
Family
ID=83899397
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP23762192.5A Pending EP4581320A1 (fr) | 2022-08-29 | 2023-08-25 | Systeme de connexion fluidique pour un echangeur de chaleur |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP4581320A1 (fr) |
| CN (1) | CN119968542A (fr) |
| FR (1) | FR3139191B1 (fr) |
| WO (1) | WO2024046891A1 (fr) |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100243200A1 (en) * | 2009-03-26 | 2010-09-30 | Modine Manufacturing Company | Suction line heat exchanger module and method of operating the same |
| IT202000032090A1 (it) * | 2020-12-23 | 2022-06-23 | Ufi Filters Spa | Assieme di regolazione temperatura olio |
-
2022
- 2022-08-29 FR FR2208602A patent/FR3139191B1/fr active Active
-
2023
- 2023-08-25 EP EP23762192.5A patent/EP4581320A1/fr active Pending
- 2023-08-25 WO PCT/EP2023/073329 patent/WO2024046891A1/fr not_active Ceased
- 2023-08-25 CN CN202380070307.6A patent/CN119968542A/zh active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| CN119968542A (zh) | 2025-05-09 |
| FR3139191A1 (fr) | 2024-03-01 |
| FR3139191B1 (fr) | 2024-08-09 |
| WO2024046891A1 (fr) | 2024-03-07 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: UNKNOWN |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE |
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| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
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| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE |
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| 17P | Request for examination filed |
Effective date: 20250227 |
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| AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC ME MK MT NL NO PL PT RO RS SE SI SK SM TR |
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| DAV | Request for validation of the european patent (deleted) | ||
| DAX | Request for extension of the european patent (deleted) | ||
| RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: VALEO ELECTRIFICATION |