EP3513138A1 - Article serti à coins sertis - Google Patents
Article serti à coins sertisInfo
- Publication number
- EP3513138A1 EP3513138A1 EP17764429.1A EP17764429A EP3513138A1 EP 3513138 A1 EP3513138 A1 EP 3513138A1 EP 17764429 A EP17764429 A EP 17764429A EP 3513138 A1 EP3513138 A1 EP 3513138A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- corner
- crimped
- crimping
- cover
- radius
- 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.)
- Granted
Links
- 238000002788 crimping Methods 0.000 claims abstract description 58
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- 230000008878 coupling Effects 0.000 description 13
- 238000010168 coupling process Methods 0.000 description 13
- 238000005859 coupling reaction Methods 0.000 description 13
- 230000007704 transition Effects 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 239000002826 coolant Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 238000005219 brazing Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
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
- F28F9/0219—Arrangements for sealing end plates into casing or header box; Header box sub-elements
- F28F9/0224—Header boxes formed by sealing end plates into covers
-
- 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
- F28D2021/0082—Charged air coolers
-
- 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
- F28F2275/12—Fastening; Joining by methods involving deformation of the elements
- F28F2275/122—Fastening; Joining by methods involving deformation of the elements by crimping, caulking or clinching
Definitions
- the present invention relates to the technical field of motor vehicle equipment, including the air supply equipment of motor vehicle engines and more particularly to engines whose supply air comes from a compressor or a turbocharger.
- Charge air Supply air from a compressor or turbocharger is also called "charge air”.
- RAS charge air cooler
- a SAR generally has a heat exchange bundle.
- This heat exchange bundle comprises a stack of plates or tubes alternately forming circulation channels for the supercharged air to be cooled and channels for the circulation of coolant, in particular engine coolant.
- the exchange of heat between the plates or the tubes and the air of supercharging is carried out partly by means of turbulators.
- the beam is enclosed in a receptacle which generally has the shape of a straight hollow cylinder, usually with a rectangular base, connected at one of its open ends to an inlet air box and to the other to an air outlet box (configuration I, that is to say that the air to cool follows a path in a straight line); or at one of its ends open to an air inlet and outlet box and the other to a deflection air box (U-shaped configuration, that is to say that the air to be cooled follows a path bent in order to emerge substantially collinearly to its direction of entry).
- a receptacle which generally has the shape of a straight hollow cylinder, usually with a rectangular base, connected at one of its open ends to an inlet air box and to the other to an air outlet box (configuration I, that is to say that the air to cool follows a path in a straight line); or at one of its ends open to an air inlet and outlet box and the other to a deflection air box (U-shaped configuration, that is to say that the
- the receptacle is connected to air boxes via a collector, the general shape of which is a straight cylinder with rectangular base to rounded corners.
- the collector has a first end of coupling to the air box and a second coupling end to the beam receptacle.
- the second coupling end completely surrounds the beam and is attached thereto by welding and / or brazing.
- the first coupling end comprises four flaps corresponding to each of the sides of the beam receptacle; rounded at the corners being left devoid of flaps.
- an object of the present invention is to overcome one of the disadvantages of the state of the art described above, and in particular to guarantee the attachment between the collector and the air box.
- the present invention proposes a crimped article comprising:
- a crimping flange having at least one corner whose shape corresponds to that of the corner of the lid
- the beginning of the detachment is avoided; it can therefore spread later to the crimped portions adjacent to the corners.
- the corner may have a periphery whose shape is a circular arc radius RI.
- the surface of the corner may furthermore alternatively be hollow.
- the hollow surface is preferably concave.
- the shape of the concave hollow surface is advantageously chosen so that a line on the concave hollow surface marked by a free edge of the crimped portion of the corner corner has a length equal to ⁇ 20% of the length of the concave hollow surface. arc of radius of radius RI forming the periphery of the corner.
- the concave hollow surface corresponds to the surface of a sphere of radius R2 equal to ⁇ 20, preferably to ⁇ 10, more preferably to ⁇ 5, radius RI, always preferably about RI.
- a pole of the sphere of radius R2 corresponds to the middle of the arc of radius R1.
- the cover may have a contour including the corner, and the crimping flange before crimping a cylindrical wall which includes part of the corner intended to be crimped and corresponding to the contour of the cover, after crimping the cylindrical wall being crimped to less in part, preferably in full, on the contour of the lid.
- the crimped portion of the corner preferably has a constant thickness.
- the crimped article may further comprise a receptacle having an edge having an outer surface and an inner surface, the inner surface of the edge defining an interior space covered by the lid, the edge forming a shape corresponding to that of the lid, wherein the outer surface is in contact with the crimping flange.
- the article is in particular an article capable of being subjected to a pressure one component of which exerts a force on the cover on a surface opposite to the surface of the corner on which is crimped the part of the corner, this part of the corner then exerting a force opposite to that exerted by the component of the pressure.
- the invention also relates to a heat exchanger comprising a crimped article as described above, the lid being an air box or a water box and the crimping flange a collector.
- the invention also relates to a charge air cooler comprising a heat exchanger as described above.
- the invention also relates to an exhaust gas recirculation system comprising a heat exchanger as described above.
- Figure 1 is a schematic illustration of a corner of a cover and a corner of a crimping flange of an article according to the present invention before crimping a portion of the corner on the corner of the cover;
- Figure 2 is a schematic illustration of a corner of a cover and a corner of a crimping flange of an article according to the present invention after crimping a portion of the corner on the corner of the cover;
- Figure 3 is a sectional view of the coupling between the corner of the lid and the corner of the crimping flange according to the present invention after part of the corner has been crimped on the corner;
- Figure 4 is a schematic top view of a lid according to the invention.
- Figure 4 is a schematic top view of a cover crimped by a crimping flange according to the invention;
- Fig. 6 is a diagram showing an exemplary form for the corner surface
- Figure 7 is a three-quarter view of a heat exchanger coupled to two air boxes
- a crimped article according to the present invention is described hereinafter with reference to FIGS. 1 to 7.
- the crimped article 1 comprises a cover 2, a crimping flange 3 and possibly a receptacle 4.
- the cover 2 (generally comprising sidewalls and a surface) has a wedge 21.
- the wedge 21 generally has two side walls 25 (in particular part of two adjacent sidewalls of the cover 2) and a surface 22 (in particular part of the cover surface 2). Viewed from above (i.e. in a direction normal to the surface of the corner 21), the two side walls 25 of the corner 21 form an angle of less than 180 °.
- the corner may be rounded or chamfered.
- the transition between the two walls, viewed from above, is preferably a circular arc having a radius of 4 + 2 mm (forming the periphery 23 of the corner), or a chamfer preferably having a length of 4 + 2 mm.
- the lid 2 is preferably made of plastic or metal, for example aluminum or steel.
- the surface of the corner 2 is hollow, preferably concave, on which is crimped the crimped portion of the corner 311.
- the corner 2 is preferably rounded by a circular arc of radius RI.
- the concave hollow surface advantageously has a shape chosen so that a line on the concave hollow surface 22 marked by a free edge of the crimped portion of the corner 311 thereon has a length of + 20 % of the length of the arc of radius RI forming the rounded corner.
- the material of the crimped part of the corner 311 has an elongation or compression of + 20% at this level.
- the hollow surface 22 is such that it has a lower level point 211 on the rounded corner 21 and a higher level point 212, and regardless of the height at which a cut is made between the lowest level point 211 and the highest level point 212, parallel to an average plane of the cover 2 passing through its side walls, the distance L 2 from the periphery 23 of the corner 2 to this height is:
- the concave hollow surface corresponds to the surface of a sphere of radius R2 equal to + 20%, preferably to + 10%, more preferably to + 5%, radius RI, always preferentially about RI.
- the lowest level point is located in the middle of the arc of radius RI.
- the cover 2 may have an outline 24 which includes the corner 21.
- the crimping flange 3 Before crimping, has at least one corner 31 whose shape corresponds to that combined of the two side walls 25 of the corner 21 of the cover 2.
- the corner 31 comprises two inner walls forming an angle corresponding to that formed by the side walls of the corner 2.
- the corner may be rounded when the corner is rounded, Le. the transition between the two walls of the corner forms an arc of circle corresponding to that of the corner, preferably of radius 4 + 2 mm.
- the corner can still be chamfered when the corner is chamfered, Le. the transition is a chamfer corresponding to that of the wedge, preferably of width 4 + 2 mm.
- Part of the corner of the crimping flange 3 is crimped onto the surface 22 of the corner 21 of the cover 2.
- the crimping flange 3 may have a cylindrical wall including part of the corner 311 to be crimped and corresponding to the contour 24 of the cover and after crimping a portion of the cylindrical wall is crimped at least in part , preferably entirely, on the contour 24 of the lid.
- the crimping flange 3 may comprise a first coupling end 32 to the lid 2, of which the corner 31 is part, and a second coupling end 33 to another element, such as the receptacle 4, in order to fix the lid 2 to this other element.
- the first coupling end 32 may comprise a folded portion 321 on the cover 2 after crimping and a contact portion 322 in contact with the side walls of the cover 2.
- the limit between the folded portion 321 and the contact portion 322 is generally parallel to the mean plane of the first coupling end 32, this limit marks the folding of the folded portion 321 relative to the contact portion 322.
- the straight line to the folded portion 321 and that to the part of contact 322 are preferably orthogonal to each other, with the possible exception of the corner or corners.
- the corner 31 is kept in the contact portion 322 during crimping and deformed only in the folded portion 321.
- the crimping flange 3 is preferably made of metal, for example aluminum or steel.
- the folded portion 321 of the crimping flange 3 can cover the cover 2 over all or part of its contour 24.
- all the contour must be understood as all along the contour and “part of the contour” as meaning with one or more sections of the contour that are not concerned.
- crimping 322 can be performed on all (lower part of FIG. 5) or part (upper part of FIG. 5) of the folded part 321 of crimping flange 3.
- the crimping 322 can not be made on the entire folded portion 321 that in the case where it covers the cover 2 over its entire contour 24.
- the crimping 322 is preferably made at regular intervals.
- the contour 24 of the lid 2 is preferably polygonal, for example regularly polygonal, preferably rectangular.
- the rounding of the corners is not taken into account for the description of the general shape of the outline of the lid, the rounded corners being assimilated to the angles of the general shape.
- the folded portion 321 includes as many crimped portions 311 of corners as the contour 24 of the lid has corners 21.
- the folded portion 321 of the crimping flange 3 When the folded portion 321 of the crimping flange 3 partially covers the lid 2 along its contour 24, it may comprise for example crimped sections 3221 to the contour 24 of the lid and separated from each other by a space, especially when before crimping, the first coupling portion 32 of the crimping flange 3 has a crenellated form.
- the separated sections may have widths, Le. the dimension taken in the sense of separation, different or equal, preferably equal.
- the folded portion 321 of the crimping flange 3 comprises sections corresponding to the sides of the polygon and whose lengths are substantially equal to the length of the corresponding sides of the polygon and separated from the parts. set with corner 311 by a space.
- the sections may each be crimped over all or part of their length. If they are crimped for part of their length, crimping is preferably performed at regular intervals.
- the crimping can be performed continuously over the entire contour 24 or only a part, especially at regular intervals.
- the crimped portion of the corner 311, where appropriate the folded portion 321 of the crimping flange 3 has a constant thickness.
- the first coupling end 32 of the crimping flange preferably has a constant thickness.
- the entire crimping flange 3 has a constant thickness, Le. including the second part of coupling.
- the thickness of the crimping flange 3 is its smallest dimension: it is that which is perpendicular to the surface of the lid when once crimped, and possibly to that of the receptacle 4, to which the crimping flange 3 is coupled.
- this constant thickness is between 0.8 mm and 3 mm.
- the receptacle 4 generally has an edge having an outer surface and an inner surface.
- the inner surface of the edge delimits an interior space covered by the cover 2.
- the edge draws a shape corresponding to that of the cover 2.
- the outer surface of the edge is in contact with the crimping flange 3, in particular with its second coupling end 33
- the crimping flange 3 encloses the outer surface and is preferably attached thereto by soldering and / or welding.
- article 1 is an article capable of being subjected to a pressure of which a component exerts a force F f on a surface of the cover opposite to the surface of the corner 21 on which is crimped the part set with the corner 311, this portion set with the corner 311 then exerting a force F e opposite to that exerted by the component of the pressure.
- Such an article is for example a heat exchanger 1 which conventionally comprises the elements mentioned in the introduction above, in the part describing the state of the art.
- the crimping flange 3 corresponds to the collector, the cover 2 to an air box (as in FIG. 7) or a water box and, where appropriate, the receptacle 4 to the casing of the heat exchanger bundle.
- Such an exchanger is advantageously used for a charge air cooler or an exhaust gas recirculation system.
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)
- Rigid Containers With Two Or More Constituent Elements (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1658571A FR3055821B1 (fr) | 2016-09-14 | 2016-09-14 | Article serti a coins sertis |
PCT/FR2017/052257 WO2018050977A1 (fr) | 2016-09-14 | 2017-08-22 | Article serti à coins sertis |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3513138A1 true EP3513138A1 (fr) | 2019-07-24 |
EP3513138B1 EP3513138B1 (fr) | 2021-03-03 |
Family
ID=57348944
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP17764429.1A Active EP3513138B1 (fr) | 2016-09-14 | 2017-08-22 | Article serti à coins sertis |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP3513138B1 (fr) |
CN (1) | CN110121627B (fr) |
FR (1) | FR3055821B1 (fr) |
WO (1) | WO2018050977A1 (fr) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR3095504B1 (fr) * | 2019-04-25 | 2021-04-02 | Valeo Systemes Thermiques | Echangeur de chaleur avec sécurisation de la fixation au coin de boite. |
DE102019210477A1 (de) * | 2019-07-16 | 2021-01-21 | Mahle International Gmbh | Crimprahmen oder Crimpboden |
FR3100877B1 (fr) * | 2019-09-16 | 2021-08-06 | Valeo Systemes Thermiques | Echangeur de chaleur. |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3142413A (en) * | 1962-08-14 | 1964-07-28 | Reynolds Metals Co | Container with flat hems at the corners thereof |
US3516597A (en) * | 1968-01-04 | 1970-06-23 | Kaiser Aluminium Chem Corp | Foil container |
EP0054815A1 (fr) * | 1980-12-22 | 1982-06-30 | Ford-Werke Aktiengesellschaft | Procédé de liaison d'un objet et d'un article |
FR2822532B1 (fr) | 2001-03-26 | 2003-06-27 | Valeo Thermique Moteur Sa | Echangeur de chaleur a joues laterales, en particulier pour vehicule automobile |
DE102005008409A1 (de) * | 2005-02-24 | 2006-08-31 | Modine Manufacturing Co., Racine | Wärmetauscher mit Rohren und Rippen sowie Herstellungsverfahren |
JP4888644B2 (ja) * | 2006-05-19 | 2012-02-29 | 東洋製罐株式会社 | 電子レンジ調理用包装体 |
DE102009053884A1 (de) | 2009-11-20 | 2011-06-01 | Behr Gmbh & Co. Kg | Saugrohr für einen Verbrennungsmotor |
FR2995379B1 (fr) * | 2012-09-10 | 2014-09-05 | Commissariat Energie Atomique | Joint circulaire d'etancheite a brosse |
US20150321799A1 (en) * | 2014-05-08 | 2015-11-12 | Multisteps Pty Ltd | Produce container |
FR3026166B1 (fr) * | 2014-09-23 | 2019-09-13 | Valeo Systemes Thermiques | Echangeur de chaleur. |
-
2016
- 2016-09-14 FR FR1658571A patent/FR3055821B1/fr not_active Expired - Fee Related
-
2017
- 2017-08-22 CN CN201780070025.0A patent/CN110121627B/zh active Active
- 2017-08-22 EP EP17764429.1A patent/EP3513138B1/fr active Active
- 2017-08-22 WO PCT/FR2017/052257 patent/WO2018050977A1/fr unknown
Also Published As
Publication number | Publication date |
---|---|
CN110121627A (zh) | 2019-08-13 |
FR3055821A1 (fr) | 2018-03-16 |
FR3055821B1 (fr) | 2019-11-08 |
WO2018050977A1 (fr) | 2018-03-22 |
CN110121627B (zh) | 2021-11-30 |
EP3513138B1 (fr) | 2021-03-03 |
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