EP3532788A1 - Joue pour échangeur thermique de véhicule automobile - Google Patents
Joue pour échangeur thermique de véhicule automobileInfo
- Publication number
- EP3532788A1 EP3532788A1 EP17801077.3A EP17801077A EP3532788A1 EP 3532788 A1 EP3532788 A1 EP 3532788A1 EP 17801077 A EP17801077 A EP 17801077A EP 3532788 A1 EP3532788 A1 EP 3532788A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- cheek
- longitudinal
- slot
- tubes
- motor vehicle
- 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
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
- F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
- F28D1/04—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits
- F28D1/053—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being straight
- F28D1/0535—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being straight the conduits having a non-circular cross-section
- F28D1/05366—Assemblies of conduits connected to common headers, e.g. core type radiators
- F28D1/05375—Assemblies of conduits connected to common headers, e.g. core type radiators with particular pattern of flow, e.g. change of flow direction
-
- 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
- F28F9/001—Casings in the form of plate-like arrangements; Frames enclosing a heat exchange core
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F2265/00—Safety or protection arrangements; Arrangements for preventing malfunction
- F28F2265/26—Safety or protection arrangements; Arrangements for preventing malfunction for allowing differential expansion between elements
Definitions
- the present invention relates to a cheek for heat exchanger of a motor vehicle and a heat exchanger for a motor vehicle comprising such a cheek.
- a heat exchanger conventionally comprises a bundle of tubes delimited by two end tubes.
- heat exchange fins may be provided between the tubes of the bundle to improve the heat exchange.
- An end heat exchange fin may be disposed on the outer face of each of the end tubes. The end heat exchange fins or fins thus delimit the bundle of tubes.
- a cheek is disposed directly on each end heat exchange fins mentioned.
- a heat exchanger further comprises two collector plates (or “collectors") which are traversed by the ends of the tubes of the bundle of tubes.
- the collector plates are each covered with a lid to form a water box.
- a first water box allows the distribution of the fluid passing through the tubes from a fluid inlet formed by a first cover.
- the second water box allows the collection of fluid having passed through the tubes, to lead to a heat exchanger fluid outlet, formed by the second cover.
- a heat exchanger may comprise two bundles of tubes, parallel and offset in a normal direction to the planes of the two bundles of tubes, traversed successively by the fluid to be cooled or heated.
- the inlet and the fluid outlet can be arranged at the same end of the bundles of tubes and formed by the same lid, the water box located at the other end for guiding the fluid from the leaving the tubes of the first bundle of crossed tubes to the inlet of the tubes of the second bundle of tubes to pass through.
- the tubes of the two bundles of tubes are traversed by fluid at different temperatures. It follows different dilations of the tubes between the first beam, traversed by a warmer fluid, and the second beam, traversed by a colder fluid. These different expansions can cause cracks or other damage in the cheeks to which the tubes are attached, which affect the integrity of the heat exchanger.
- An object of the invention is to provide a cheek for a motor vehicle heat exchange device to reduce or even completely avoid the appearance of these cracks and / or damage.
- the invention proposes a cheek for a motor vehicle heat exchange device, in particular for a methodical two-pass heat exchanger, for a motor vehicle, comprising a longitudinal slot opening at a longitudinal end of the cheek, preferably at a single longitudinal end of the cheek.
- the slot allows the two parts of the cheeks that it separates and which each advantageously correspond to a respective bundle of tubes, to expand independently of the other. This limits the level of stress in the cheek, during the use of the heat exchange device.
- the heat exchanger cheek comprises one or more of the following characteristics, taken alone or in combination:
- the longitudinal slot extends over a length greater than 10, preferably greater than 20%, of the length of the cheek, and / or less than
- the longitudinal slot is discontinuous, two sections of successive slots being separated by a tongue, preferably breakable;
- the cheek has a longitudinal expansion zone, the longitudinal slot extending preferably at least as far as the longitudinal expansion zone, more preferably up to the longitudinal expansion zone only; the longitudinal expansion zone consists of a section of the cheek with slots at least partly transverse;
- the longitudinal expansion zone has a slot "Z", preferably two slots “Z” substantially symmetrical with respect to the longitudinal slot, the or each slot “Z” preferably being oriented parallel to a longitudinal direction of the play ; the longitudinal expansion zone having an "L” slot opening on one side of the cheek, preferably two “L” slots symmetrical with respect to the longitudinal slot, each opening on one side of the cheek; the longitudinal slot extends substantially along the median axis of the cheek; and - the longitudinal slot is formed at a longitudinal rib of a face of the cheek intended to be oriented outside the heat exchange device.
- the invention relates to a heat exchange device for a motor vehicle, in particular to a cooling radiator for the motor of a motor vehicle, of the type with two methodical passes, comprising two bundles of tubes, a first collector plate and a second collector plate, at least a first cover, preferably a single first cover, attached to the first collector plate and forming an inlet and a water outlet, a second cover attached to the second collector plate and forming a guide for the water between the first bundle of tubes and the second bundle of tubes, a first and a second cheek connecting the first and second collector plates, at least one cheek, preferably each cheek being as previously described, in all its combinations.
- said one longitudinal end is oriented towards the first collector plate.
- FIG. 1 represents a heat exchanger for a motor vehicle, in perspective
- Figure 2 shows a detail A of Figure 1
- Figure 3 shows a variant of the detail of Figure 2, seen from above.
- the elements that are identical or of identical function bear the same reference sign.
- the differences between the embodiments presented are described.
- FIG. 1 illustrates an example of heat exchanger 10 (or heat exchanger).
- heat exchanger 10 or heat exchanger
- it is a heat exchanger with two methodical passes, cooling of the gearbox and motor of a motor vehicle.
- Such an exchanger can for example cool water, which passes through it, with the aid of an air flow F created by the speed of movement of the motor vehicle.
- the heat exchanger 10 essentially comprises two bundles of tubes 12 (only one of which is visible in FIG. 1) extending in two parallel planes, the two parallel planes being offset with respect to one another in a manner normal direction to the plans.
- the bundles of tubes are mounted between two collector plates 14, 16 receiving the ends of the tubes 12, and two lateral cheeks 18, only one of which is visible in FIG. 1.
- the cheeks 18 may be made of metal, in particular of aluminum.
- the cheeks 18 are for example made by means of a shaped sheet.
- a first cover 22 is fixed on the header plate 14, located at a first longitudinal end of the heat exchanger 10, the assembly thus formed being sometimes called a water box.
- the first cover 22 forms an inlet 24 and a water outlet 26 of the heat exchanger 10.
- the first cover 22 also forms, with the header plate 14, two spaces:
- a first so-called distribution space placing in fluid communication the water inlet 24 and a first bundle of tubes, in this case, the tube bundle not visible in the figure, intended to be placed downstream with respect to the direction of propagation of the flow F of cooling fluid, here of the air;
- a second so-called collection space putting in fluid communication the water outlet 26 and the second bundle of tubes.
- a second cover 28 is attached to the header plate 16 located at the second end of the heat exchanger 10, opposite the first. This second cover 28 defines with the collector plate 16 a hollow space which puts in fluid communication the first and second bundles of tubes 12.
- this heat exchanger 10 can be summarized as follows: the hot water enters the heat exchange device 10 via the water inlet 24:
- the hot water passes through the distribution space formed by the first cover 22 and the header plate 14, towards the first bundle of tubes 12, situated downstream with respect to the second bundle of tubes 12, in the direction of flow air F, this first tube bundle 12 thus being in contact with air preheated by contact with the second bundle of tubes 12; at the end of the heat exchanger 10, opposite the water inlet 24, the water is turned around, guided by the cover 28, which directs the water to the second bundle of tubes 12;
- the water then passes through this second bundle of tubes 12, into the collection space formed by the first cover 22 and the header plate 14, which directs the cooled water towards the water outlet 26.
- each cheek 18 is in contact with both a tube of the first bundle of tubes, through which is passed through warmer water, and with a tube of the second bundle of tubes, crossed by colder water. Consequently, differential dilations are created in the cheeks 18.
- each cheek 18 is provided, as is visible in particular on the cheeks 18.
- the longitudinal slot 30 extends here along the median axis X of the cheek 18, delimiting two cheek halves, each half being in contact with a tube of a respective bundle of tubes. More particularly, the longitudinal slot 30 is here made at the top of a rib 32, extending along the median axis X also, made on the face of the cheek 18 facing away from the heat exchange device. In other words, the rib 32 is formed on the face of the cheek 18 forming the outer face of the heat exchange device 10. This rib 32 stiffens the cheek 18. The rib 32 also ensures that the cheek 18 is not brazed with the heat exchange fin in the area of the longitudinal slot 30.
- the longitudinal slot 30 opens at the longitudinal end 36 of the cheek 18 facing the inlet 24 and the water outlet 26. Indeed, it is at this end that it is particularly advantageous to release the constraints that may appear in the cheek 18, not to transmit them to the collector plate 14.
- the collector plate 14 can also undergo differential dilations, since it is in contact with both hot water that has just entered the collector plate. the heat exchange device 10, and the cold water, which is about to leave this heat exchange device 10.
- the length of the longitudinal slot 30, measured along the median axis X of the cheek 18, is preferably greater than 10, more preferably greater than 20% of the length of the cheek 18, and / or less than 50, more preferably less than 30% of the length of the cheek 18.
- the width of the longitudinal slot 30, measured perpendicularly to the median axis X, in the plane of the cheek 18, is preferably less than the distance between the two bundles of tubes. More preferably, this width is wide enough to be easily achieved in series with a common tool, whose life is satisfactory.
- the slot 30 may be discontinuous.
- two successive sections of the slot 30 are separated by a tongue 38 of sheet metal.
- the tongue 38 is integral with the rest of the cheek 18.
- This tongue is preferably made so that it can be broken on the first use of the heat exchange device 10, its role being to maintain in position of the two halves of the cheek 18, separated by the slot 30, during the manipulation of the cheek 18, until it is put in place in the heat exchange device 10.
- the tongue break 38 is advantageously favored by the presence of the rib 32, which stiffens the cheek 38.
- the tongue 38 can be scored, that is to say present breakage primers.
- the tongue 38 has an hourglass shape, the corresponding median shrinkage forming the breakout primer.
- the width of the tongue 38 may especially be of the order of a few millimeters to guarantee its breakage at the least operating effort of the heat exchange device 10.
- the width of the tongue is greater than 1 mm and or less than 5 mm, preferably 3 mm, more preferably 2 mm.
- the tongue or tabs 38 are preferably disposed as far as possible from the longitudinal end 36 of the cheek 18 where the longitudinal slot 30 opens. In particular, no tongue is preferably provided at this longitudinal end 36 where the flexibility of the cheek 18 is particularly interesting.
- the cheek 18 has clipping tabs 40 for fixing the cheek 18 to the collector plate 14.
- the end 36 of the cheek 18 where the longitudinal slot 30 opens extends to the base of the clipping tabs 40.
- the longitudinal slot 30 is not formed by a possible play between two clipping lugs 40, which play would not allow to obtain the flexibility sought by the formation of the longitudinal slot 30, since the clipping lugs 40 are rigidly connected to the header plate 14.
- the cheek 18, as illustrated in Figure 2 further comprises a longitudinal expansion zone 42 to accompany a dilation of the tubes.
- This longitudinal expansion zone here consists of a section of the cheek 18 with slots 44, 46 at least partly transverse.
- at least partly transverse means here slits 44, 46 of which at least a portion extends in a direction transverse to the longitudinal direction X of the cheek 18.
- the longitudinal slot 30 extends at least up to the longitudinal expansion zone 42, preferably to the longitudinal expansion zone 42, but not beyond. This provides, in operation, a structure substantially equivalent to two independent side cheeks, corresponding to the two halves of the cheek 18, even more able to expand independently of one another.
- the longitudinal expansion zone 42 is symmetrical with respect to the longitudinal axis X of the cheek 18, to allow expansion substantially equivalent to the two bundles of tubes.
- the longitudinal expansion zone 42 has two first slots 44 in "Z", oriented in the direction of the longitudinal axis X of the cheek.
- the longitudinal expansion zone 42 has two second slots 46 in "L", so that a branch of the "L” is oriented transversely to the longitudinal direction X of the cheek 18 and opens on one side of the cheek 18. This transverse branch of each slot 46 extends to the side of the cheek 18 closest.
- Figure 3 illustrates a variant of the cheek 18, in which the longitudinal slot 30 is continuous.
- the cheek 18 is indeed devoid of tongue 30 dividing the longitudinal slot 30 into successive sections. This embodiment is easier to manufacture.
- the invention is not limited to the embodiments that have just been described but is capable of numerous variants.
- the cheek may be in the form of a folded sheet forming a central core and two longitudinal edges folded, in particular at 90 °.
- longitudinal slit is performed in the soul of the cheek, closer to the bundles of tubes.
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)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1660537A FR3059403B1 (fr) | 2016-10-28 | 2016-10-28 | Joue pour echangeur thermique de vehicule automobile |
PCT/FR2017/052972 WO2018078299A1 (fr) | 2016-10-28 | 2017-10-27 | Joue pour échangeur thermique de véhicule automobile |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3532788A1 true EP3532788A1 (fr) | 2019-09-04 |
Family
ID=57681642
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP17801077.3A Pending EP3532788A1 (fr) | 2016-10-28 | 2017-10-27 | Joue pour échangeur thermique de véhicule automobile |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP3532788A1 (fr) |
CN (1) | CN109891176B (fr) |
FR (1) | FR3059403B1 (fr) |
WO (1) | WO2018078299A1 (fr) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102017206113A1 (de) * | 2017-04-10 | 2018-10-11 | Mahle International Gmbh | Wärmeübertrager für ein Kraftfahrzeug |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2002147973A (ja) * | 2000-08-30 | 2002-05-22 | Denso Corp | 複式熱交換器 |
US6412547B1 (en) * | 2000-10-04 | 2002-07-02 | Modine Manufacturing Company | Heat exchanger and method of making the same |
DE102004013383A1 (de) * | 2004-03-17 | 2005-10-06 | Behr Gmbh & Co. Kg | Röhrenwärmetauscher |
US20070012424A1 (en) * | 2005-07-12 | 2007-01-18 | Denso Corporation | Heat exchanger |
CN201373628Y (zh) * | 2009-01-08 | 2009-12-30 | 成都五牛科技有限公司 | 组合式空调全铝换热器及其模块化组装结构 |
DE202010002694U1 (de) * | 2010-02-23 | 2010-08-12 | Behr Gmbh & Co. Kg | Rahmenseitenteil |
FR2975768B1 (fr) * | 2011-05-26 | 2016-01-29 | Valeo Systemes Thermiques | Echangeur thermique, notamment pour vehicule automobile, et dispositif d'admission d'air correspondant |
CN105658454B (zh) * | 2013-10-23 | 2018-07-27 | 摩丁制造公司 | 换热器及侧板 |
-
2016
- 2016-10-28 FR FR1660537A patent/FR3059403B1/fr active Active
-
2017
- 2017-10-27 CN CN201780067406.3A patent/CN109891176B/zh active Active
- 2017-10-27 EP EP17801077.3A patent/EP3532788A1/fr active Pending
- 2017-10-27 WO PCT/FR2017/052972 patent/WO2018078299A1/fr unknown
Also Published As
Publication number | Publication date |
---|---|
FR3059403B1 (fr) | 2019-06-07 |
FR3059403A1 (fr) | 2018-06-01 |
WO2018078299A1 (fr) | 2018-05-03 |
CN109891176A (zh) | 2019-06-14 |
CN109891176B (zh) | 2021-08-17 |
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