WO2017012868A1 - Fin heat exchanger comprising improved louvres - Google Patents

Fin heat exchanger comprising improved louvres Download PDF

Info

Publication number
WO2017012868A1
WO2017012868A1 PCT/EP2016/065922 EP2016065922W WO2017012868A1 WO 2017012868 A1 WO2017012868 A1 WO 2017012868A1 EP 2016065922 W EP2016065922 W EP 2016065922W WO 2017012868 A1 WO2017012868 A1 WO 2017012868A1
Authority
WO
WIPO (PCT)
Prior art keywords
edge
row
tubes
blade
louvers
Prior art date
Application number
PCT/EP2016/065922
Other languages
French (fr)
Inventor
Erwan ETIENNE
Patrick Boisselle
Samuel BRY
Nicolas FRANCOIS
Christophe LENORMAND
Original Assignee
Valeo Systemes Thermiques
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Valeo Systemes Thermiques filed Critical Valeo Systemes Thermiques
Priority to EP16736111.2A priority Critical patent/EP3325910B1/en
Priority to CN201680047066.3A priority patent/CN108431537A/en
Priority to BR112018000879A priority patent/BR112018000879A2/en
Priority to MX2018000659A priority patent/MX2018000659A/en
Priority to US15/745,585 priority patent/US20180299209A1/en
Publication of WO2017012868A1 publication Critical patent/WO2017012868A1/en

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
    • F28F1/00—Tubular elements; Assemblies of tubular elements
    • F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
    • F28F1/12—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element
    • F28F1/24—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending transversely
    • F28F1/32—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending transversely the means having portions engaging further tubular elements
    • F28F1/325—Fins with openings

Definitions

  • the present invention relates to a heat exchanger, and more particularly to heat exchanger tubes of the mechanical type.
  • a heat exchanger generally comprises tubes, in which a heat transfer fluid is intended to circulate, and heat exchange elements connected to these tubes.
  • Brazed and mechanical type heat exchangers are usually distinguished by their manufacturing process.
  • the heat exchange elements In a mechanical type heat exchanger, the heat exchange elements, referred to in this case as "fins", are connected to the tubes in the following manner. First, the holes are formed in the fins passage tubes. These passage holes are generally delimited each by a fallen edge forming a neck. Then, the fins are arranged substantially parallel to each other and each tube is threaded into a series of aligned holes of the fins. Finally, it causes a radial expansion of the tubes by passing an expansion tool inside these tubes so as to mechanically bind the tubes and fins by crimping, the necks defining the passage holes of the tubes then forming tight collars around the tubes.
  • Such exchangers are traversed by an air flow, the fins extending through the flow.
  • baffles formed by rows of louvers are usually provided on the fins, the rows being inserted between the tubes of the same row of tubes.
  • each louver comprises a blade provided with a free edge and a connecting edge connecting the louver to the fin.
  • the louvers are arranged in two groups of successive louvers in the row.
  • the free edge of the blades form upstream edge relative to the air flow, the connecting edge forming downstream edge.
  • the connecting edge of the louvre blades form upstream edge relative to the air flow, the free edge forming the downstream edge.
  • the aim of the invention is to improve the performance of the heat exchanger by choosing a configuration of louvers which makes it possible to limit the appearance of these heat exchangers. inefficient areas.
  • the subject of the invention is a heat exchanger comprising:
  • the tubes being connected to the fin by clamping the tubes in a collar formed in the fin;
  • each shutter comprising a blade provided with a free edge and a connecting edge connecting the shutter to the fin
  • the connecting edge of the blade of at least the first louver of the row forms upstream edge relative to the air flow, the free edge of the blade forming the downstream edge.
  • the exchanger comprises only one row of tubes and the connecting edges of all the blades of the row form upstream edge with respect to the air flow, the free edge of the blades forming the downstream edge.
  • the free edge of at least the blade of the row forms an upstream edge with respect to the air flow, the connecting edge of this blade forming a downstream edge.
  • the row of louvers comprises two groups of louvers, the louvers of the second group succeeding the louvers of the first group in the row of louvers, the connecting edge of the blades of the first group forming an upstream edge relative to the air flow, the free edge of the blades of the first group forming the downstream edge, and the free edge of the blades of the second group forming an upstream edge with respect to the air flow, the connecting edge of the blades of the second group forming downstream edge.
  • the two groups of louvers comprise the same number of louvers.
  • the free edge of the blade of the last louver of the first group is connected to the free edge of the blade of the first louver of the second group by a connecting junction board substantially parallel to the surface of the fin.
  • the dimension of the junction blade between the free edge of the blade of the last louver of the first group and the free edge of the blade of the first louver of the second group is less than 3. mm.
  • FIG. 1 is a perspective view of a fin of a heat exchanger according to a first embodiment of the invention
  • FIG. 2 is a perspective view of a fin of a heat exchanger according to a second embodiment of the invention.
  • FIG. 3 is a perspective view of a heat exchanger according to the invention.
  • FIG. 3 There is shown in Figure 3 a heat exchanger 1 of mechanical type for equipping a motor vehicle.
  • the heat exchanger comprises a row of tubes 2 (shown truncated for the sake of clarity in FIGS. 1 and 2), in which a conventional heat transfer fluid is intended to circulate, and fins 4 (only one of which has been shown for reasons of clarity) related to these tubes 2.
  • the tubes 2 are connected to the fins 4 by clamping the tubes in collars 6 formed in the fins 4.
  • the fins 4 are provided with holes 8 for passage of the tubes. These passage holes 8 have a generally oblong shape.
  • the tubes 2 each have a generally elongate shape and have a substantially oblong section.
  • the tubes 2 are arranged substantially parallel to each other, so as to form a single row.
  • the fins 4 have a generally rectangular shape, substantially flat, and are arranged in the heat exchanger 1 substantially parallel to each other and perpendicular to the longitudinal directions of the tubes 2.
  • the fins 4 are intended to extend through an upstream flow of upstream air itself through the exchanger.
  • Arrows F represent the flow direction of flow.
  • the exchanger 1 also comprises rows of louvers 12, formed in each fin 4 and each interposed between two tubes 2.
  • Each louver 12 comprises a blade 14 comprising a free edge 16 and a connecting edge 18 connecting the louver 12 to the fin 4.
  • the connecting edge 18 of the blade 14 of at least the first louver 12 of the row 10 form an upstream edge with respect to the flow F, the free edge 16 of the blade 14 forming a downstream edge.
  • the connecting edges 18 of all the blades 14 of the row 10 form upstream edge with respect to the air flow F, the free edge 16 of the blades 14 forming a downstream edge.
  • the free edge 16 of at least the last blade 14 of the row 10 forms upstream edge with respect to the air flow F, its connecting edge 18 forming downstream edge.
  • the row 10 comprises two groups of louvers 12 preferably comprising the same number of louvers 12, the louvers 12 of the second group succeeding the louvers of the first group in the row 10 of louvers.
  • the row 10 is formed of fourteen louvers 12 divided into two groups of seven louvers 12, arranged on either side of a junction blade 20 connecting the free edge 16 of the last blade 14 of the first group at the free edge 16 of the first blade 14 of the second group.
  • each blade 14 forms an upstream edge with respect to the air flow F and the free edge 16 forms a downstream edge.
  • each blade 14 forms an upstream edge with respect to the air flow F, and the connecting edge 18 forms a downstream edge.
  • the joining blade 20 forms a bridge substantially parallel to the surface of the fin 4 between the two groups of the row 10.
  • substantially parallel means that the bridge is located in a plane offset from the surface of the fin.
  • the dimension of the joining blade 22 between the free edge 16 of the blade 14 of the last louver 12 of the first group and the free edge 16 of the blade 14 of the first louver 12 of the second group is less than 3 mm .

Abstract

The invention relates to a heat exchanger comprising: at least one fin (4), - at least one row of tubes (2); the tubes being connected to the fin (4) by clamping the tubes (2) in a collar (6) arranged in the fin (4); and - at least one row (10) of louvres (12), arranged in the fin (4) and inserted between two tubes (2) of the row of tubes, each louvre (12) comprising a vane (14) having a free edge (16) and a connecting edge (18) connecting the louvre (12) to the fin (4). The connecting edge (18) of the vane (14) of at least the first louvre (12) of the row (10) forms the upstream edge with respect to the flow of air, the free edge (16) of the vane (14) forming the downstream edge.

Description

Echanqeur de chaleur à ailettes comprenant des Persiennes améliorées  Finned heat exchanger including improved louvers
La présente invention concerne un échangeur de chaleur, et plus particulièrement des tubes pour échangeur de chaleur de type mécanique. The present invention relates to a heat exchanger, and more particularly to heat exchanger tubes of the mechanical type.
Un échangeur de chaleur comprend généralement des tubes, dans lesquels un fluide caloporteur est destiné à circuler, et des éléments d'échange de chaleur reliés à ces tubes.  A heat exchanger generally comprises tubes, in which a heat transfer fluid is intended to circulate, and heat exchange elements connected to these tubes.
On distingue habituellement des échangeurs de chaleur de type brasé et de type mécanique selon leur procédé de fabrication.  Brazed and mechanical type heat exchangers are usually distinguished by their manufacturing process.
Dans un échangeur de chaleur de type mécanique, les éléments d'échange de chaleur, appelés dans ce cas « ailettes », sont reliés aux tubes de la façon suivante. Tout d'abord, on forme dans les ailettes des trous de passage des tubes. Ces trous de passage sont généralement délimités chacun par un bord tombé formant un col. Puis, on dispose les ailettes sensiblement parallèlement entre elles et on enfile chaque tube dans une série de trous alignés des ailettes. Enfin, on provoque une expansion radiale des tubes en passant un outil d'expansion à l'intérieur de ces tubes de façon à lier mécaniquement les tubes et les ailettes par sertissage, les cols délimitant les trous de passage des tubes formant alors des collets serrés autour les tubes.  In a mechanical type heat exchanger, the heat exchange elements, referred to in this case as "fins", are connected to the tubes in the following manner. First, the holes are formed in the fins passage tubes. These passage holes are generally delimited each by a fallen edge forming a neck. Then, the fins are arranged substantially parallel to each other and each tube is threaded into a series of aligned holes of the fins. Finally, it causes a radial expansion of the tubes by passing an expansion tool inside these tubes so as to mechanically bind the tubes and fins by crimping, the necks defining the passage holes of the tubes then forming tight collars around the tubes.
De tels échangeurs sont traversés par un flux d'air, les ailettes s'étendant à travers le flux.  Such exchangers are traversed by an air flow, the fins extending through the flow.
Afin d'augmenter l'échange de chaleur entre les ailettes et le flux d'air, on ménage habituellement sur les ailettes des déflecteurs formés de rangées de persiennes, les rangées étant intercalées entre les tubes d'une même rangée de tubes. Généralement, chaque persienne comprend une lame munie d'un bord libre et d'un bord de liaison reliant la persienne à l'ailette.  In order to increase the heat exchange between the fins and the air flow, baffles formed by rows of louvers are usually provided on the fins, the rows being inserted between the tubes of the same row of tubes. Generally, each louver comprises a blade provided with a free edge and a connecting edge connecting the louver to the fin.
Dans l'art antérieur, les persiennes sont arrangées en deux groupes de persiennes successifs dans la rangée. Pour les persiennes du premier groupe, auquel appartient la première persienne de la rangée, le bord libre des lames forme bord amont par rapport au flux d'air, le bord de liaison formant bord aval. A l'inverse, pour les persiennes du second groupe, auquel appartient la dernière persienne de la rangée, le bord de liaison des lames des persiennes forme bord amont par rapport au flux d'air, le bord libre formant bord aval.  In the prior art, the louvers are arranged in two groups of successive louvers in the row. For louvers of the first group, to which belongs the first louver of the row, the free edge of the blades form upstream edge relative to the air flow, the connecting edge forming downstream edge. Conversely, for the louvers of the second group, to which belongs the last louver of the row, the connecting edge of the louvre blades form upstream edge relative to the air flow, the free edge forming the downstream edge.
Il s'avère que cette configuration a pour effet de générer des zones inefficaces au contact de persiennes dans lesquelles la circulation d'air est freinée, si bien que l'échange thermique entre l'ailette et le flux d'air est réduit.  It turns out that this configuration has the effect of generating inefficient areas in contact with louvers in which the air flow is braked, so that the heat exchange between the fin and the air flow is reduced.
L'invention a pour but d'améliorer les performances de l'échangeur de chaleur en choisissant une configuration des persiennes qui permette de limiter l'apparition de ces zones inefficaces. The aim of the invention is to improve the performance of the heat exchanger by choosing a configuration of louvers which makes it possible to limit the appearance of these heat exchangers. inefficient areas.
A cet effet, l'invention a pour objet un échangeur de chaleur comprenant :  For this purpose, the subject of the invention is a heat exchanger comprising:
- au moins une rangée de tubes,  at least one row of tubes,
- au moins une ailette disposée transversalement à ladite rangée de tubes ;  at least one fin disposed transversely to said row of tubes;
les tubes étant reliés à l'ailette par serrage des tubes dans un collet ménagé dans l'ailette ; et  the tubes being connected to the fin by clamping the tubes in a collar formed in the fin; and
- au moins une rangée de persiennes, ménagée dans l'ailette et intercalée entre deux tubes de la rangée de tubes, chaque persienne comprenant une lame munie d'un bord libre et d'un bord de liaison reliant la persienne à l'ailette,  at least one row of shutters, formed in the fin and sandwiched between two tubes of the row of tubes, each shutter comprising a blade provided with a free edge and a connecting edge connecting the shutter to the fin,
caractérisé en ce que le bord de liaison de la lame d'au moins la première persienne de la rangée forme bord amont par rapport au flux d'air, le bord libre de la lame formant bord aval.  characterized in that the connecting edge of the blade of at least the first louver of the row forms upstream edge relative to the air flow, the free edge of the blade forming the downstream edge.
On a constaté, de façon surprenante, que la configuration dans laquelle le bord de liaison de la lame d'au moins la première persienne forme bord amont par rapport au flux d'air traversant l'ailette et son bord libre forme bord aval, rend le flux d'air qui traverse les persiennes moins turbulent. Ceci a pour effet de limiter l'apparition de zones inefficaces, et donc d'augmenter l'échange thermique entre les persiennes et le flux d'air.  Surprisingly, it has been found that the configuration in which the connecting edge of the blade of at least the first louver forms an upstream edge with respect to the air flow passing through the fin and its free edge forms a downstream edge. the airflow through the louvers less turbulent. This has the effect of limiting the appearance of inefficient areas, and therefore to increase the heat exchange between the shutters and the air flow.
A cet égard, des tests ont permis de constater une augmentation de l'échange thermique de 3% pour une perte de charge équivalente par rapport aux configurations de l'art antérieur.  In this regard, tests have shown an increase in heat exchange of 3% for equivalent head loss compared to configurations of the prior art.
Selon un premier mode de réalisation de l'invention, l'échangeur ne comporte qu'une seule rangée de tubes et les bords de liaison de toutes les lames de la rangée forment bord amont par rapport au flux d'air, le bord libre des lames formant bord aval.  According to a first embodiment of the invention, the exchanger comprises only one row of tubes and the connecting edges of all the blades of the row form upstream edge with respect to the air flow, the free edge of the blades forming the downstream edge.
Selon un deuxième mode de réalisation de l'invention, le bord libre d'au moins la lame de la rangée forme bord amont par rapport au flux d'air, le bord de liaison de cette lame formant bord aval.  According to a second embodiment of the invention, the free edge of at least the blade of the row forms an upstream edge with respect to the air flow, the connecting edge of this blade forming a downstream edge.
Selon un mode particulier de réalisation de l'invention, la rangée de persiennes comprend deux groupes de persiennes, les persiennes du second groupe succédant aux persiennes du premier groupe dans la rangée de persiennes, le bord de liaison des lames du premier groupe formant bord amont par rapport au flux d'air, le bord libre des lames du premier groupe formant bord aval, et le bord libre des lames du second groupe formant bord amont par rapport au flux d'air, le bord de liaison des lames du second groupe formant bord aval.  According to a particular embodiment of the invention, the row of louvers comprises two groups of louvers, the louvers of the second group succeeding the louvers of the first group in the row of louvers, the connecting edge of the blades of the first group forming an upstream edge relative to the air flow, the free edge of the blades of the first group forming the downstream edge, and the free edge of the blades of the second group forming an upstream edge with respect to the air flow, the connecting edge of the blades of the second group forming downstream edge.
Selon un mode particulier de réalisation de l'invention, les deux groupes de persiennes comprennent un même nombre de persiennes.  According to a particular embodiment of the invention, the two groups of louvers comprise the same number of louvers.
Selon un mode particulier de réalisation de l'invention, le bord libre de la lame de la dernière persienne du premier groupe est relié au bord libre de la lame de la première persienne du second groupe par une lame de jonction formant pont sensiblement parallèle à la surface de l'ailette. According to a particular embodiment of the invention, the free edge of the blade of the last louver of the first group is connected to the free edge of the blade of the first louver of the second group by a connecting junction board substantially parallel to the surface of the fin.
Selon un mode particulier de réalisation de l'invention, la dimension de la lame de jonction entre le bord libre de la lame de la dernière persienne du premier groupe et le bord libre de la lame de la première persienne du second groupe est inférieure à 3 mm.  According to a particular embodiment of the invention, the dimension of the junction blade between the free edge of the blade of the last louver of the first group and the free edge of the blade of the first louver of the second group is less than 3. mm.
L'invention sera mieux comprise à la lecture de la description qui va suivre donnée uniquement à titre d'exemple et faite en se référant aux dessins dans lesquels :  The invention will be better understood on reading the description which follows, given solely by way of example and with reference to the drawings in which:
- la figure 1 est une vue en perspective d'une ailette d'un échangeur de chaleur selon un premier mode de réalisation de l'invention ;  - Figure 1 is a perspective view of a fin of a heat exchanger according to a first embodiment of the invention;
- la figure 2 est une vue en perspective d'une ailette d'un échangeur de chaleur selon un deuxième mode de réalisation de l'invention ;  FIG. 2 is a perspective view of a fin of a heat exchanger according to a second embodiment of the invention;
- la figure 3 est une vue en perspective d'un échangeur de chaleur selon l'invention.  - Figure 3 is a perspective view of a heat exchanger according to the invention.
On a représenté à la figure 3 un échangeur de chaleur 1 de type mécanique destiné à équiper un véhicule automobile.  There is shown in Figure 3 a heat exchanger 1 of mechanical type for equipping a motor vehicle.
L'échangeur de chaleur comprend une rangée de tubes 2 (représentés tronqués pour des raisons de clarté sur les figures 1 et 2), dans lesquels un fluide caloporteur classique est destiné à circuler, et des ailettes 4 (dont une seule a été représentée pour des raisons de clarté) reliées à ces tubes 2.  The heat exchanger comprises a row of tubes 2 (shown truncated for the sake of clarity in FIGS. 1 and 2), in which a conventional heat transfer fluid is intended to circulate, and fins 4 (only one of which has been shown for reasons of clarity) related to these tubes 2.
Les tubes 2 sont reliés aux ailettes 4 par serrage des tubes dans des collets 6 ménagés dans les ailettes 4. A cet effet, les ailettes 4 sont munies de trous 8 de passage des tubes. Ces trous de passage 8 ont une forme générale oblongue.  The tubes 2 are connected to the fins 4 by clamping the tubes in collars 6 formed in the fins 4. For this purpose, the fins 4 are provided with holes 8 for passage of the tubes. These passage holes 8 have a generally oblong shape.
Dans l'exemple décrit, les tubes 2 ont chacun une forme générale allongée et comportent une section sensiblement oblongue. Les tubes 2 sont agencés sensiblement parallèlement entre eux, de façon à former une rangée unique.  In the example described, the tubes 2 each have a generally elongate shape and have a substantially oblong section. The tubes 2 are arranged substantially parallel to each other, so as to form a single row.
Les ailettes 4 ont une forme générale rectangulaire, sensiblement plane, et sont agencées dans l'échangeur de chaleur 1 de façon sensiblement parallèle entre elles et perpendiculaire aux directions longitudinales des tubes 2.  The fins 4 have a generally rectangular shape, substantially flat, and are arranged in the heat exchanger 1 substantially parallel to each other and perpendicular to the longitudinal directions of the tubes 2.
Les ailettes 4 sont destinées à s'étendre à travers un flux d'air d'amont en aval lui-même traversant l'échangeur. On a représenté par des flèches F la direction de circulation du flux.  The fins 4 are intended to extend through an upstream flow of upstream air itself through the exchanger. Arrows F represent the flow direction of flow.
Pour augmenter l'échange thermique entre le flux F et les ailettes 4, l'échangeur 1 comprend également des rangées 10 de persiennes 12, ménagées dans chaque ailette 4 et intercalées chacune entre deux tubes 2.  To increase the heat exchange between the flow F and the fins 4, the exchanger 1 also comprises rows of louvers 12, formed in each fin 4 and each interposed between two tubes 2.
Chaque persienne 12 comprend une lame 14 comprenant un bord libre 16 et un bord de liaison 18 reliant la persienne 12 à l'ailette 4. Dans les deux modes de réalisations selon l'invention représentés aux figures 1 et 2, le bord de liaison 18 de la lame 14 d'au moins la première persienne 12 de la rangée 10 forme bord amont par rapport au flux F, le bord libre 16 de la lame 14 formant bord aval. Each louver 12 comprises a blade 14 comprising a free edge 16 and a connecting edge 18 connecting the louver 12 to the fin 4. In the two embodiments of the invention shown in Figures 1 and 2, the connecting edge 18 of the blade 14 of at least the first louver 12 of the row 10 form an upstream edge with respect to the flow F, the free edge 16 of the blade 14 forming a downstream edge.
Plus particulièrement, dans le premier mode de réalisation représenté à la figure More particularly, in the first embodiment shown in FIG.
1 , les bords de liaison 18 de toutes les lames 14 de la rangée 10 forment bord amont par rapport au flux d'air F, le bord libre 16 des lames 14 formant bord aval. 1, the connecting edges 18 of all the blades 14 of the row 10 form upstream edge with respect to the air flow F, the free edge 16 of the blades 14 forming a downstream edge.
Dans le deuxième mode de réalisation selon l'invention représenté à la figure 2, le bord libre 16 d'au moins la dernière lame 14 de la rangée 10 forme bord amont par rapport au flux d'air F, son bord de liaison 18 formant bord aval.  In the second embodiment according to the invention shown in FIG. 2, the free edge 16 of at least the last blade 14 of the row 10 forms upstream edge with respect to the air flow F, its connecting edge 18 forming downstream edge.
Plus particulièrement, dans ce deuxième mode de réalisation, la rangée 10 comprend deux groupes de persiennes 12 comprenant de préférence un même nombre de persiennes 12, les persiennes 12 du second groupe succédant aux persiennes du premier groupe dans la rangée 10 de persiennes.  More particularly, in this second embodiment, the row 10 comprises two groups of louvers 12 preferably comprising the same number of louvers 12, the louvers 12 of the second group succeeding the louvers of the first group in the row 10 of louvers.
Sur l'exemple représenté sur la figure 2, la rangée 10 est formée de quatorze persiennes 12 répartis en deux groupes de sept persiennes 12, disposées de part et d'autre d'une lame de jonction 20 reliant le bord libre 16 de la dernière lame 14 du premier groupe au bord libre 16 de la première lame 14 du deuxième groupe.  In the example shown in Figure 2, the row 10 is formed of fourteen louvers 12 divided into two groups of seven louvers 12, arranged on either side of a junction blade 20 connecting the free edge 16 of the last blade 14 of the first group at the free edge 16 of the first blade 14 of the second group.
Pour toutes les persiennes 12 du premier groupe, le bord de liaison 18 de chaque lame 14 forme bord amont par rapport au flux d'air F et le bord libre 16 forme bord aval.  For all louvers 12 of the first group, the connecting edge 18 of each blade 14 forms an upstream edge with respect to the air flow F and the free edge 16 forms a downstream edge.
A l'inverse, pour les persiennes 12 du second groupe, le bord libre 16 de chaque lame 14 forme bord amont par rapport au flux d'air F, et le bord de liaison 18 forme bord aval.  Conversely, for louvers 12 of the second group, the free edge 16 of each blade 14 forms an upstream edge with respect to the air flow F, and the connecting edge 18 forms a downstream edge.
La lame de jonction 20 forme un pont sensiblement parallèle à la surface de l'ailette 4 entre les deux groupes de la rangée 10. Par sensiblement parallèle, on entend que le pont est situé dans un plan décalé par rapport à la surface de l'ailette. De préférence, la dimension de la lame de jonction 22 entre le bord libre 16 de la lame 14 de la dernière persienne 12 du premier groupe et le bord libre 16 de la lame 14 de la première persienne 12 du second groupe est inférieure à 3 mm.  The joining blade 20 forms a bridge substantially parallel to the surface of the fin 4 between the two groups of the row 10. By substantially parallel means that the bridge is located in a plane offset from the surface of the fin. Preferably, the dimension of the joining blade 22 between the free edge 16 of the blade 14 of the last louver 12 of the first group and the free edge 16 of the blade 14 of the first louver 12 of the second group is less than 3 mm .
L'invention n'est pas limitée aux modes de réalisation présentés et d'autres modes de réalisation apparaîtront clairement à l'homme du métier.  The invention is not limited to the embodiments presented and other embodiments will become apparent to those skilled in the art.
En particulier, une combinaison des différents modes de réalisation peut être envisagée pour obtenir les effets recherchés.  In particular, a combination of the different embodiments can be envisaged to obtain the desired effects.

Claims

REVENDICATIONS
1 . Echangeur de chaleur comprenant : 1. Heat exchanger comprising:
- au moins une rangée de tubes (2),  at least one row of tubes (2),
- au moins une ailette (4) disposée transversalement à ladite rangée de tubes (2), les tubes étant reliés à l'ailette (4) par serrage des tubes (2) dans un collet (6) ménagé dans l'ailette (4) ; et  - At least one fin (4) disposed transversely to said row of tubes (2), the tubes being connected to the fin (4) by clamping the tubes (2) in a collar (6) formed in the fin (4). ); and
- au moins une rangée (10) de persiennes (12), ménagée dans l'ailette (4) et intercalée entre deux tubes (2) de la rangée de tubes, chaque persienne (12) comprenant une lame (14) munie d'un bord libre (16) et d'un bord de liaison (18) reliant la persienne (12) à l'ailette (4),  - at least one row (10) of louvers (12), formed in the fin (4) and interposed between two tubes (2) of the row of tubes, each louver (12) comprising a blade (14) provided with a free edge (16) and a connecting edge (18) connecting the louver (12) to the fin (4),
caractérisé en ce que le bord de liaison (18) de la lame (14) d'au moins la première persienne (12) de la rangée (10) forme bord amont par rapport au flux d'air, le bord libre (16) de la lame (14) formant bord aval.  characterized in that the connecting edge (18) of the blade (14) of at least the first louver (12) of the row (10) forms upstream edge with respect to the air flow, the free edge (16) the blade (14) forming a downstream edge.
2. Echangeur de chaleur selon la revendication 1 , caractérisé en ce qu'il ne comporte qu'une seule rangée de tubes (2) et en ce que les bords de liaison (18) de toutes les lames (14) de la rangée (10) forment bord amont par rapport au flux d'air, le bord libre (16) des lames (18) formant bord aval. 2. Heat exchanger according to claim 1, characterized in that it comprises only one row of tubes (2) and in that the connecting edges (18) of all the blades (14) of the row ( 10) form upstream edge relative to the air flow, the free edge (16) of the blades (18) forming a downstream edge.
3. Echangeur de chaleur selon l'une quelconque des revendications précédentes, dans lequel le bord libre (16) d'au moins la dernière lame (14) de la rangée (10) forme bord amont par rapport au flux d'air, le bord de liaison (18) de cette dernière lame (14) formant bord aval. Heat exchanger according to any one of the preceding claims, wherein the free edge (16) of at least the last blade (14) of the row (10) forms upstream edge with respect to the air flow, the connecting edge (18) of the latter blade (14) forming a downstream edge.
4. Echangeur de chaleur selon la revendication 3, dans lequel la rangée (10) de persiennes comprend deux groupes de persiennes (12), les persiennes (12) du second groupe succédant aux persiennes (12) du premier groupe dans la rangée (10) de persiennes, le bord de liaison (18) des lames (14) du premier groupe formant bord amont par rapport au flux d'air, le bord libre (16) des lames (14) du premier groupe formant bord aval, et le bord libre (16) des lames (14) du second groupe formant bord amont par rapport au flux d'air, le bord de liaison (18) des lames (14) du second groupe formant bord aval. A heat exchanger according to claim 3, wherein the row (10) of louvers comprises two groups of louvers (12), the louvers (12) of the second group succeeding the louvers (12) of the first group in the row (10). ) of louvers, the connecting edge (18) of the blades (14) of the first upstream edge group with respect to the air flow, the free edge (16) of the blades (14) of the first downstream edge group, and the free edge (16) of the blades (14) of the second group forming upstream edge relative to the air flow, the connecting edge (18) of the blades (14) of the second group forming a downstream edge.
5. Echangeur de chaleur selon la revendication 4, dans lequel les deux groupes de persiennes (12) comprennent un même nombre de persiennes (12). 5. Heat exchanger according to claim 4, wherein the two groups of louvers (12) comprise the same number of louvers (12).
6. Echangeur de chaleur selon la revendication 4 ou 5, dans lequel le bord libre (16) de la lame (14) de la dernière persienne (12) du premier groupe est relié au bord libre (16) de la lame (14) de la première persienne (12) du second groupe par une lame de jonction (22) formant pont sensiblement parallèle à la surface de l'ailette (4). 6. Heat exchanger according to claim 4 or 5, wherein the free edge (16) of the blade (14) of the last louver (12) of the first group is connected to the free edge (16) of the blade (14). the first louver (12) of the second group by a junction blade (22) forming a bridge substantially parallel to the surface of the fin (4).
7. Echangeur de chaleur selon la revendication 6, dans lequel la dimension de la lame de jonction (22) entre le bord libre (16) de la lame (14) de la dernière persienne (12) du premier groupe et le bord libre (16) de la lame (14) de la première persienne (12) du second groupe est inférieure à 3 mm. 7. Heat exchanger according to claim 6, wherein the dimension of the joining strip (22) between the free edge (16) of the blade (14) of the last louver (12) of the first group and the free edge ( 16) of the blade (14) of the first louver (12) of the second group is less than 3 mm.
PCT/EP2016/065922 2015-07-17 2016-07-06 Fin heat exchanger comprising improved louvres WO2017012868A1 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
EP16736111.2A EP3325910B1 (en) 2015-07-17 2016-07-06 Fin heat exchanger comprising improved louvres
CN201680047066.3A CN108431537A (en) 2015-07-17 2016-07-06 Include the fin heat exchanger of improved louvre blade
BR112018000879A BR112018000879A2 (en) 2015-07-17 2016-07-06 finned heat exchanger comprising shutters
MX2018000659A MX2018000659A (en) 2015-07-17 2016-07-06 Fin heat exchanger comprising improved louvres.
US15/745,585 US20180299209A1 (en) 2015-07-17 2016-07-06 Fin heat exchanger comprising improved louvres

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1556759 2015-07-17
FR1556759A FR3038976B1 (en) 2015-07-17 2015-07-17 HEAT EXCHANGER WITH FINS COMPRISING IMPROVED PERSIANS

Publications (1)

Publication Number Publication Date
WO2017012868A1 true WO2017012868A1 (en) 2017-01-26

Family

ID=54199870

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2016/065922 WO2017012868A1 (en) 2015-07-17 2016-07-06 Fin heat exchanger comprising improved louvres

Country Status (7)

Country Link
US (1) US20180299209A1 (en)
EP (1) EP3325910B1 (en)
CN (1) CN108431537A (en)
BR (1) BR112018000879A2 (en)
FR (1) FR3038976B1 (en)
MX (1) MX2018000659A (en)
WO (1) WO2017012868A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2960767T3 (en) * 2018-06-13 2024-03-06 Mitsubishi Electric Corp Heat exchanger, heat exchanger unit and refrigeration cycle apparatus
JP7215156B2 (en) * 2018-12-26 2023-01-31 株式会社ノーリツ heat exchanger and water heater

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4709753A (en) * 1986-09-08 1987-12-01 Nordyne, Inc. Uni-directional fin-and-tube heat exchanger
US4723599A (en) * 1987-03-06 1988-02-09 Lennox Industries, Inc. Lanced fin heat exchanger
US5099914A (en) * 1989-12-08 1992-03-31 Nordyne, Inc. Louvered heat exchanger fin stock
EP1500894A2 (en) * 2003-07-24 2005-01-26 Delphi Technologies, Inc. Fin-and-tube type heat exchanger

Family Cites Families (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4328861A (en) * 1979-06-21 1982-05-11 Borg-Warner Corporation Louvred fins for heat exchangers
US4434844A (en) * 1981-05-15 1984-03-06 Daikin Kogyo Co., Ltd. Cross-fin coil type heat exchanger
US4705105A (en) * 1986-05-06 1987-11-10 Whirlpool Corporation Locally inverted fin for an air conditioner
JP2524812B2 (en) * 1988-06-29 1996-08-14 三菱電機株式会社 Heat exchanger
JP2661356B2 (en) * 1990-10-22 1997-10-08 松下電器産業株式会社 Finned heat exchanger
DE4404837A1 (en) * 1994-02-16 1995-08-17 Behr Gmbh & Co Rib for heat exchangers
US5509469A (en) * 1994-04-19 1996-04-23 Inter-City Products Corporation (Usa) Interrupted fin for heat exchanger
US5722485A (en) * 1994-11-17 1998-03-03 Lennox Industries Inc. Louvered fin heat exchanger
KR0155654B1 (en) * 1995-01-23 1999-01-15 이헌조 Fin & tube type heat exchanger
TW340180B (en) * 1995-09-14 1998-09-11 Sanyo Electric Co Heat exchanger having corrugated fins and air conditioner having the same
IT1285264B1 (en) * 1996-02-26 1998-06-03 Magneti Marelli Climat Srl CONDENSER FOR AIR CONDITIONING SYSTEMS FOR VEHICLES.
KR0182555B1 (en) * 1996-08-23 1999-05-01 김광호 Heat transferring device in airconditioner
US5752567A (en) * 1996-12-04 1998-05-19 York International Corporation Heat exchanger fin structure
KR100220724B1 (en) * 1996-12-30 1999-09-15 윤종용 Heat exchanger for air conditioner
AU2004241397B2 (en) * 2003-05-23 2007-11-08 Mitsubishi Denki Kabushiki Kaisha Plate fin tube-type heat exchanger
KR100555415B1 (en) * 2003-05-28 2006-02-24 엘지전자 주식회사 Heat exchanger
US7261147B2 (en) * 2003-05-28 2007-08-28 Lg Electronics Inc. Heat exchanger
KR100518854B1 (en) * 2003-09-02 2005-09-30 엘지전자 주식회사 Heat exchanger
FR2937719B1 (en) * 2008-10-29 2013-12-27 Valeo Systemes Thermiques WING FOR HEAT EXCHANGER AND HEAT EXCHANGER COMPRISING SUCH AILT
US8267160B2 (en) * 2009-08-11 2012-09-18 Trane International Inc. Louvered plate fin
CN102472599B (en) * 2009-09-16 2014-02-19 松下电器产业株式会社 Fin tube heat exchanger
US20130284416A1 (en) * 2011-01-21 2013-10-31 Daikin Industries, Ltd. Heat exchanger and air conditioner
USD800282S1 (en) * 2016-03-03 2017-10-17 Lennox Industries Inc. Heat exchanger fin

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4709753A (en) * 1986-09-08 1987-12-01 Nordyne, Inc. Uni-directional fin-and-tube heat exchanger
US4723599A (en) * 1987-03-06 1988-02-09 Lennox Industries, Inc. Lanced fin heat exchanger
US5099914A (en) * 1989-12-08 1992-03-31 Nordyne, Inc. Louvered heat exchanger fin stock
EP1500894A2 (en) * 2003-07-24 2005-01-26 Delphi Technologies, Inc. Fin-and-tube type heat exchanger

Also Published As

Publication number Publication date
FR3038976A1 (en) 2017-01-20
FR3038976B1 (en) 2019-08-09
US20180299209A1 (en) 2018-10-18
EP3325910A1 (en) 2018-05-30
CN108431537A (en) 2018-08-21
MX2018000659A (en) 2018-09-06
EP3325910B1 (en) 2021-08-11
BR112018000879A2 (en) 2018-09-11

Similar Documents

Publication Publication Date Title
EP2379977B1 (en) Heat exchanger comprising tubes with grooved fins
JP2011064403A (en) Heat exchanger, fin for heat exchanger and its manufacturing method
WO2005083347A1 (en) Metal blade for an air heat exchanger
FR3038976B1 (en) HEAT EXCHANGER WITH FINS COMPRISING IMPROVED PERSIANS
JP2007155181A (en) Heat exchanger
CA3036460A1 (en) Heat exchanger fin
EP2776182B1 (en) Method for producing a heat exchanger
EP3325909B1 (en) Fin heat exchanger comprising improved louvres
KR101652736B1 (en) return bend assembly device
FR3038975B1 (en) HEAT EXCHANGER WITH IMPROVED FINS
FR2958027A1 (en) Blade for mechanical type heat exchanger utilized as cooling radiator for cooling internal combustion engine of vehicle, has spacing unit set at level of opening rows close to external platelets and formed by raised picots issued from plate
JP6119263B2 (en) Heat exchanger
EP3794299A1 (en) Heat exchanger for a motor vehicle
JP6846007B2 (en) Heating tube vibration prevention jig
FR3053108A1 (en) IMPROVED HEAT EXCHANGER AVOIDING CONTACT DEFECTS BETWEEN TUBES AND FINS
WO2008034748A1 (en) Fin for a heat exchanger, and heat exchanger comprising such a fin
FR3062467B1 (en) EVAPORATOR FOR AIR CONDITIONING INSTALLATION
FR3090838A1 (en) Motor vehicle heat exchanger
WO2012130333A1 (en) Fin for a heat exchanger, and heat exchanger provided with such fins
FR2798607A1 (en) Heat convector fin manufacturing procedure consists of cutting with blanking die with simultaneous formation of holes and spacers
JPWO2021199458A5 (en)
WO2017134359A1 (en) Heat exchanger with improved tubes
KR980003456A (en) Fin-Tube Heat Exchanger
JP2003247795A5 (en)
FR2849173A1 (en) Modular heat exchanger for automobile comprises several heat exchanges with air flow circulation tubes with rectangular shaped cooling fins which are common to at least two exchangers

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 16736111

Country of ref document: EP

Kind code of ref document: A1

WWE Wipo information: entry into national phase

Ref document number: MX/A/2018/000659

Country of ref document: MX

NENP Non-entry into the national phase

Ref country code: DE

WWE Wipo information: entry into national phase

Ref document number: 2016736111

Country of ref document: EP

REG Reference to national code

Ref country code: BR

Ref legal event code: B01A

Ref document number: 112018000879

Country of ref document: BR

WWE Wipo information: entry into national phase

Ref document number: 15745585

Country of ref document: US

ENP Entry into the national phase

Ref document number: 112018000879

Country of ref document: BR

Kind code of ref document: A2

Effective date: 20180116