EP3568658B1 - Radiateur à plaque d'extrémité en u orientée vers l'extérieur, et système de chauffage, ventilation ou climatisation correspondant - Google Patents

Radiateur à plaque d'extrémité en u orientée vers l'extérieur, et système de chauffage, ventilation ou climatisation correspondant Download PDF

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Publication number
EP3568658B1
EP3568658B1 EP18714590.9A EP18714590A EP3568658B1 EP 3568658 B1 EP3568658 B1 EP 3568658B1 EP 18714590 A EP18714590 A EP 18714590A EP 3568658 B1 EP3568658 B1 EP 3568658B1
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EP
European Patent Office
Prior art keywords
radiator
tubes
end plate
reservoirs
base
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.)
Active
Application number
EP18714590.9A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP3568658A1 (fr
Inventor
Sylvain Moreau
Rémi LARONDE
Akihiko Takano
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Valeo Systemes Thermiques SAS
Original Assignee
Valeo Systemes Thermiques SAS
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Publication of EP3568658A1 publication Critical patent/EP3568658A1/fr
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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
    • 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
    • F28F2230/00—Sealing means

Definitions

  • the field of the invention is that of radiators which can be used within motor vehicles, in particular within heating, ventilation or air conditioning systems, commonly called HVAC systems for “Heat Ventilation Air Conditioning” in English, as well as that of such systems.
  • HVAC systems Heating, ventilation or air conditioning systems
  • Radiators are commonly used in motor vehicles to provide cooling or heating of fluids. They can for example be integrated into an HVAC system or other US 5,667,004 describes a radiator according to the preamble of claim 1.
  • the figure 1 partly illustrates a classic radiator.
  • a radiator 1 comprises two reservoirs 10, 11 arranged on two opposite sides of the radiator 1, and a body 12 comprising a plurality of tubes 120 opening out on either side into the reservoirs 10, 11.
  • the tubes 120 are distant two by two according to a pitch P which is preferably regular.
  • the space between the tubes 120 is conventionally filled by means of spacers 121 which optimize the flow of air through the body 12.
  • Each tube is located between two spacers.
  • the body thus begins with an interlayer and ends with an interlayer.
  • Each reservoir 10, 11 comprises a first end connected to a sleeve 13, and a second closed end.
  • a fluid such as for example a heat transfer liquid, can be caused to circulate inside the radiator 1 by entering through one of the sleeves 13, by distributing itself in the corresponding reservoir 10, 11, by flowing at the inside the tubes 120 until the other reservoir 10, 11 penetrates, then escaping from the radiator 1 through the corresponding sleeve 13.
  • Such a radiator which comprises a large number of components, is complex to manufacture, heavy and expensive.
  • Such a radiator can be implemented in an HVAC system such as the one illustrated in the figure 2 .
  • An HVAC system 2 conventionally comprises a radiator 1 and a chamber 20 having an introduction passage 21 for inserting the radiator 1 into the chamber 20.
  • the sleeves 13 make it possible to connect the radiator to a fluid circulation network comprising connected pipes 3. the sleeves 13, for example with collars 4, seals 5 being interposed between the pipes and the sleeves.
  • an end seal 22 and a cover 23 are implemented.
  • the seal 22 is deposited at the end of the radiator 1 on the surface of the introduction passage 21, then the cover 23 is attached to the seal 22 and secured to the chamber 20 by means of screws 6. The seal 22 is then compressed between the cover 23, the end of the radiator 1 and the edge of the chamber 20.
  • the end of the radiator 1 located opposite the introduction passage 21 when the radiator is housed in the chamber generally has a relatively complex shape.
  • This complex shape is linked in particular to the presence of the sleeves and to the connection between each reservoir 10, 11 and the body 12 of the radiator 1 which is generally obtained by crimping generating non-uniform contours having irregularities in shape.
  • the installation of the radiator 1 inside the chamber 20 is rather long insofar as it first assumes the introduction of the radiator 1 into the chamber 20, secondly the installation of the seal 22 and finally the closing of the chamber 20 by means of the cover 23 which must be secured thereto, for example by means of screws 6.
  • the object of the invention is in particular to provide an effective solution to at least some of these various problems.
  • an objective of the invention is to provide a technical solution making it possible to simplify the architecture of a radiator.
  • the object of the invention is to provide such a solution which is simple in design and / or simple to manufacture.
  • an objective of the invention is, according to at least one embodiment, to provide such a technique which makes it possible to reduce the number of components used in the manufacture of a radiator and / or to reduce the cost thereof and / or the weight.
  • the invention also pursues the objective, according to at least one embodiment, of providing a technical solution making it possible to optimize the performance of the sealing function between the radiator and the chamber of an HVAC system.
  • the object of the invention is to provide such a technique which makes it possible to simplify, while improving it, the seal between the radiator and the chamber of an HVAC system.
  • the invention provides a radiator comprising a body and two reservoirs arranged on two opposite sides of said body, said body comprising a plurality of tubes opening out at each of their ends into one of said reservoirs, said body comprising at a first of its ends an end plate extending substantially between said reservoirs.
  • said end plate has an essentially U-shaped section with a bottom extended by two lateral wings, said bottom extending at least in part in contact with the first of said tubes located at said first end of said body, each tube being disposed between two spacers except said first tube, no interlayer being interposed between said bottom of said end plate and said first tube, said wings extending from said bottom towards the outside of said body.
  • the invention consists in placing at the end of the body of a radiator an end plate in the form of a "U" oriented not towards the body of the radiator. radiator but towards the outside thereof, the bottom of this plate being in contact at least in part with the first tube of the body without a spacer being interposed between this bottom and the first tube.
  • the elimination of the spacer located at the first end of the body makes it possible to reduce the number of parts entering into the composition of the radiator, and thus to simplify its architecture and manufacture.
  • the technique according to the invention makes it possible to reduce the cost and the weight of a radiator without adversely affecting its efficiency.
  • the free ends of said wings extend essentially straight up to the end of said reservoirs.
  • the width of said end plate, in a plane transverse to said tubes and in a direction parallel to said tubes, is greater than or equal to the thickness of said body and less than the width of said reservoirs.
  • the length of said reservoirs beyond the first of said tubes located at said first end of said body is substantially less than or equal to the pitch of said tubes.
  • the general thickness of said end plate is substantially equal to said length.
  • said bottom of said end plate has irregularities such that said bottom is punctually in contact with said first tube.
  • said irregularities preferably extend along axes essentially longitudinal to said tubes.
  • the wall of each reservoir has a thickness e, the distance d on either side of the radiator between the edge of each reservoir and said body being less than twice the thickness e.
  • said distance d is preferably less than or equal to 1 millimeter.
  • each tank comprises a part forming a tank having a substantially U-shaped section with a bottom wall and two side walls and a part forming a cover having a substantially U-shaped section, a bottom wall and two side walls, the side walls of said vessel portion having stops projecting inside said vessel portion remote from the bottom thereof, said side walls of said cover portion being pressed against said stops.
  • This configuration makes it possible to arrange the tubes so that their edge (or nose) extends against, or at least close to, the interior surface of the side walls of the manifold.
  • the distance d on either side of the radiator between the edge (side wall) of each tank and the body (edge of the tubes) can be reduced to be less than twice the thickness e of the walls of the manifold and preferably less than or equal to 1 millimeter.
  • a radiator according to the invention comprises a seal extending around the periphery of said radiator on said wings, encircling said reservoirs.
  • the invention also covers a heating, ventilation or air conditioning system comprising a radiator according to the variant explained above and a hermetic chamber provided with a passage for introducing said radiator, said radiator being housed in said chamber, said seal ensuring the sealing between the contour of said radiator and said introduction passage.
  • the invention proposes to simplify the architecture of a radiator.
  • the invention proposes to place at the end of the body of the radiator a "U" -shaped end plate oriented not towards the body of the radiator but towards the outside thereof, the bottom of the radiator. this plate extending at least in part in contact with the first tube of the body, no spacer being interposed between the bottom of the end plate and the first tube.
  • such a radiator 1 comprises a body 12 and two reservoirs 10, 11 located at two opposite ends of the body 12.
  • the body 12 comprises a plurality of hollow tubes 120 which open out on either side into the reservoirs 10, 11, i.e. each end of a tube opens into one of the reservoirs.
  • the connection between the tubes and the tanks is watertight.
  • Each reservoir 10, 11 is connected at a first end to a sleeve 13, the other of its ends being closed by means of an end plate 110.
  • the end plate 110 is received in a peripheral groove (not shown) made in the reservoir.
  • the sleeves 13 are located on a first side of the body 12 while the plugged ends are located at the opposite end of the body 12.
  • the sleeves are located at the end of the radiator located near the introduction passage when the radiator is located in the bedroom.
  • the sleeves can be elbow or straight.
  • Each reservoir 10, 11 comprises a manifold 112, having an essentially U-shaped section, closed by a cover 113.
  • the manifold 112 has a substantially U-shaped cross section with a bottom wall 1120 and two side walls 1121. Each side wall 1121 includes stops 1123 protruding inside the manifold 112 away from the bottom wall 1120. A plurality stop 1123 is provided all along the collector 112. The bottom wall 1120 is crossed by passageways 1122 for the tubes 120.
  • the cover 113 has a substantially U-shaped section with a bottom wall 1130 and two side walls 1131.
  • the outer width of the cover 113 is slightly less than the inner width of the manifold 112. The cover 113 can thus be inserted into the manifold 112.
  • the side walls 1131 of the cover 113 then bear against the stops 1123.
  • the connection between the bottom wall 1130 and the side walls 1131 will preferably be rounded.
  • the tubes 120 can be arranged so that their edge 1200 extends against, or at least close to, the interior surface. side walls 1121 of the manifold 112.
  • the distance d on either side of the radiator between the edge (side walls 1121) of each tank and the body (edge 1200 of the tubes 120) is less than twice the thickness e of the walls of the collector 112.
  • the thickness e of the wall of the reservoir which will advantageously be between 0.8 and 1 millimeter. This distance d is preferably less than or equal to 1 millimeter. It is at most equal to the thickness e of the walls of the collector.
  • the junction between the reservoirs 10, 11, their manifold and their cover, the end plates 110, the spacers 111, the corresponding sleeves 13 and the tubes 120 is sealed. It is obtained by brazing, all the components of the radiator being made of metal, for example aluminum alloy, clad (coated with filler metal) and assembled to each other before being placed in a furnace. brazing for final joining and sealing.
  • each reservoir 10, 11 is essentially rectangular or square with essentially regular contours, smooth, that is to say without extra thickness.
  • the angles may be rounded.
  • the tubes 120 are spaced two by two by a substantially constant distance defining the pitch P of the tubes 120.
  • the tube located at the first end of the body is hereinafter called the first tube 120 1 , while that located at the other end is called last tube 120 d .
  • Each space located between two consecutive tubes 120 is conventionally filled by means of an interlayer 121.
  • Each insert 121 comprises a sheet folded in a zigzag fashion, ie having a plurality of convolutions of which a convolution 121 ′ is shown on the left. figure 8 . They thus comprise a plurality of wings 1211, 1212 traversed by perforations 1213 optimizing the flow of air.
  • the height H of an interlayer is preferably between 5 and 6 millimeters, and advantageously equal to 5.4 or 5.8 millimeters.
  • the end of the radiator 1, intended to be located at the level of the introduction passage 21 of the chamber 20, also called the first end, comprises an end plate 123.
  • This end plate 123 has a U-shaped section. and includes a bottom 1231 and two side wings 1232. The wings are essentially perpendicular to the bottom.
  • This end plate 123 extends between the two reservoirs 10, 11 preferably until it comes into abutment against them.
  • the bottom 1231 extends at least in part in contact with the first tube 120 1 located at the first end of the body 12 and the wings 1232 extending from the bottom 1231 towards the outside of the body 12.
  • the bottom 1231 of the end plate 123 is preferably completely in contact with the first tube 120 1 .
  • the bottom 1231 of the end plate 123 has irregularities 1233 such that the bottom 1231 is only occasionally in contact with the first tube 120 1 . It may for example be bosses, grooves or the like. This makes it possible to reduce the thermal conductivity between the first tube and the end plate.
  • the irregularities 1233 preferably extend along axes that are essentially longitudinal to the tubes 120.
  • No spacer 121 is interposed between the bottom 1231 of the end plate 123 and the first tube 120 1 .
  • the invention makes it possible to eliminate the insert placed before the first tube according to the prior art. This reduces the number of components of the radiator, its weight and its cost.
  • the free ends 12321 of the wings 1232 that is to say those opposite the bottom 1231, extend essentially straight up to the end of the reservoirs 10, 11 as can be seen in particular on the figure. figure 13 .
  • the width A of the end plate 123, in a plane transverse to the tubes 120 and in a direction parallel to the tubes 120, is greater than or equal to l 'thickness of the body B 12 and less than the width C of the reservoirs 10, 11 in the same plane and in the same direction.
  • the thickness B of the body corresponds to those of the tubes and the spacers which are substantially identical.
  • the width A of the end plate 207 will preferably be equal to the thickness B of the body (or bundle).
  • the thickness of the material of the plate which will advantageously be between 0.4 and 0.8 millimeters and preferably equal to 0.5 millimeters.
  • the thickness B of the body will preferably be between 20 and 30 millimeters and advantageously equal to 21 or 27 millimeters.
  • the width C of the reservoirs will preferably be equal to the thickness B of the body increased by twice the thickness e of the wall of the reservoir which will advantageously be between 0.8 and 1 millimeters, in addition increased by twice the distance f between the nose of the tubes and the internal wall of the manifold, this distance preferably being between 0 and 0.6 millimeters.
  • the length L of the reservoirs 10, 11 beyond the first tube 120 1 at the first end of the body 12 is substantially less or equal to the pitch P of the tubes 120.
  • the pitch P of the tubes that is to say the center distance between two consecutive tubes, will preferably be between 6 and 8 millimeters and advantageously equal to 7 or 6.6 millimeters.
  • the general thickness E of the end plate 123 is substantially equal to this length L.
  • the length of the reservoirs is thus substantially equal to that of the body.
  • the end plate 123 is preferably made of an aluminum alloy and welded directly to the first tube 120 1 by brazing. It can be secured to it by another means, such as by gluing or the like, and be made from another suitable material.
  • the radiator 1 comprises a gasket 14 arranged around the radiator 1.
  • this gasket makes it possible to ensure the seal between the contour of the radiator 1 and the introduction passage. 21 when the radiator 1 is housed inside the chamber 20.
  • This seal 14 is located at the level of the first end of the radiator 1, that is to say that which is intended to be located at the level of the introduction passage 21 when the radiator 1 is housed inside the room 20.
  • the seal 14 extends around the radiator 1, encircling the reservoirs 10, 11. In other words, it extends all the way around the periphery of the radiator. It also extends around the end plate 123, that is to say along the edges of the end plate 123, here on the wings 1232 thereof. The wings of the end plate thus form, with the reservoirs, a seat for the seal.
  • the peripheral contour of the radiator 1 has an essentially regular and flat surface free of irregularity, extra thickness, protuberance or setback unlike the radiators of the prior art have crimp connections for the reservoirs.
  • a substantially continuous bearing surface is thus formed to receive the seal. This makes it possible to improve the sealing function between the radiator and the chamber insofar as the seal 14 is compressed between surfaces which are essentially placed (that of the outer peripheral contour of the radiator 1 and that of the inner peripheral contour of the introduction passage 21) .
  • the seal 14 has a generally rectangular shape which is essentially complementary to the peripheral outline of the radiator 1. It preferably has an essentially rectangular section.
  • the seal 14 is preferably secured to the radiator by gluing.
  • it may include a bead of adhesive on its face intended to come into contact with the peripheral contour of the radiator 1. Before the seal is put in place, this bead will be covered with a removable protective film.
  • the seal is made, for example, from a polyurethane foam. Alternatively, it could be made from any other suitable material.
  • the dimensions of the seal 14 as well as its rigidity will be chosen such that it is compressed between the outer peripheral contour of the radiator 1 and the internal peripheral contour of the introduction passage 21 and follows their shape on both sides when the radiator 1 is housed inside the chamber 20.
  • the seal 14 thus ensures the filling of the sealing function between the radiator 1 and the chamber 20 when the radiator 1 is housed in the chamber 20.
  • the chamber 20 then constitutes a hermetically sealed enclosure, in particular airtight.
  • Maintaining the radiator 1 inside the chamber is preferably ensured by means of a clipping system comprising, for example, elastic tabs integral with the housing. This prevents the accidental extraction of the radiator from the housing.
  • the seal 14 may or may not be preformed. If it is preformed, it will be a little more rigid so that its peripheral outline will have the shape of that of the radiator 1 so that its installation on the radiator 1 will not require it to conform to its shape. If it is not preformed, its placement around the radiator will require more dexterity on the part of the operator.
  • the gasket 14 is preferably pre-assembled on the radiator 1.
  • the radiator 1 and the gasket 14 then form a removable monobloc assembly which can be inserted into the chamber or be extracted therefrom in one block.
  • the implementation of the U-shaped end plate at least partly in contact with the first tube, without the interposition of an insert between the plate and the first tube and oriented towards the outside of the body, makes it possible to reduce the number of components of the radiator, and thus reduce the weight and cost.
  • peripheral seal makes it possible, in the case of an application in an HVAC system, to optimize the sealing function between the radiator and the chamber in a simple, efficient and low-cost manner.

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  • 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)
  • Air-Conditioning For Vehicles (AREA)
EP18714590.9A 2017-03-17 2018-03-19 Radiateur à plaque d'extrémité en u orientée vers l'extérieur, et système de chauffage, ventilation ou climatisation correspondant Active EP3568658B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1752214A FR3064054B1 (fr) 2017-03-17 2017-03-17 Radiateur a plaque d’extremite en u orientee vers l’exterieur, et systeme de chauffage, ventilation ou climatisation correspondant
PCT/FR2018/050663 WO2018167446A1 (fr) 2017-03-17 2018-03-19 Radiateur à plaque d'extrémité en u orientée vers l'extérieur, et système de chauffage, ventilation ou climatisation correspondant

Publications (2)

Publication Number Publication Date
EP3568658A1 EP3568658A1 (fr) 2019-11-20
EP3568658B1 true EP3568658B1 (fr) 2021-10-27

Family

ID=58739193

Family Applications (1)

Application Number Title Priority Date Filing Date
EP18714590.9A Active EP3568658B1 (fr) 2017-03-17 2018-03-19 Radiateur à plaque d'extrémité en u orientée vers l'extérieur, et système de chauffage, ventilation ou climatisation correspondant

Country Status (4)

Country Link
EP (1) EP3568658B1 (zh)
CN (1) CN110431372B (zh)
FR (1) FR3064054B1 (zh)
WO (1) WO2018167446A1 (zh)

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0622018U (ja) * 1992-08-27 1994-03-22 サンデン株式会社 熱交換器のブラケット構造
JP3353475B2 (ja) * 1994-07-28 2002-12-03 株式会社デンソー 熱交換器
US5667004A (en) * 1996-04-29 1997-09-16 General Motors Corporation Molded plastic heat exchanger mounting channel
JP4161446B2 (ja) * 1999-01-28 2008-10-08 株式会社デンソー 熱交換器
US6179050B1 (en) * 1999-09-29 2001-01-30 Valeo Thermique Moteur Heat exchangers
US7395853B2 (en) * 2004-10-01 2008-07-08 Delphi Technologies, Inc. Heat exchanger assembly for a motor vehicle
KR101184208B1 (ko) * 2006-04-14 2012-09-19 한라공조주식회사 열교환기
WO2015079958A1 (ja) * 2013-11-26 2015-06-04 株式会社ケーヒン 車両用空調装置

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
CN110431372B (zh) 2022-09-27
FR3064054A1 (fr) 2018-09-21
EP3568658A1 (fr) 2019-11-20
CN110431372A (zh) 2019-11-08
FR3064054B1 (fr) 2021-06-18
WO2018167446A1 (fr) 2018-09-20

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