FR2772902A1 - DEVICE FOR ASSEMBLING ACCESSORIES ON A VEHICLE COOLING RADIATOR - Google Patents

Abstract

The accessories, for example an air conditioning condenser (7) and an air guide nozzle (12), are fixed on either side of the radiator (1) by elastic jumpers (20) overlapping the manifolds (6 ) of the latter and attached to the latter, the wings (22, 23) of which form secondary jumpers (24, 27) respectively covering the condenser and the nozzle.

Description

Device for assembling accessories on a cooling radiator

  The invention relates to a cooling device comprising a first heat exchanger comprising a block having two opposite main faces and two opposite end faces, suitable for allowing circulation, from one to the other of said faces. ends, of a first fluid to be cooled by heat exchange with an air flow

  crossing the block from one to the other of its principal faces

  the, and at least one manifold elongated along one of said end faces so as to allow said first fluid to pass from the block to the manifold and / or vice versa, the device further comprising two other components fixed to the first heat exchanger so as to extend respectively opposite said two

main faces.

  Such a device is used in particular for cooling

  ment of the heat engine for driving a motor vehicle, the first fluid being precisely the engine cooling fluid. The other two components can be on the one hand a condenser used for the air conditioning of the passenger compartment of the vehicle, crossed by the same air flow as the cooling radiator, on the other hand a nozzle intended to channel this flow of air and associated with a fan unit. In known devices of this kind, each of the other components is fixed to the first heat exchanger by

  screwing, which involves relative assembly operations

  long and costly in terms of labor.

  The object of the invention is to remedy this drawback by

  simplifying the device assembly procedure.

  The invention relates in particular to a device of the kind defined in the introduction, and provides that it comprises, for fixing said other components, at least one elastic jumper straddling the manifold, having a back and two wings which have hooking means to immobilize the rider on the manifold, and come into contact respectively with the two components, each of the wings being subdivided into two branches which deviate from one another in the direction of said air flow by forming together a secondary jumper to style the corresponding component. Thus, it suffices to engage the rider (s) on the

  header boxes for fixing jumpers, and accessories

  evenings by means of these, on the first heat exchanger, without screwing or any operation

similar.

  Optional features of the device according to the invention, complementary or alternative, are set out below: - The rider is reversible, each of its wings being able to cooperate with any one of said components. It is therefore not necessary to choose between two possible orientations of the jumper, which leads to a saving of time

additional.

  - The rider has symmetry with respect to a plane

  and / or a symmetry with respect to an axis, which correspond

  dre the two wings to each other.

  - The back of the rider rests on the manifold.

  - The rider is a piece of cut and folded sheet metal, the branches of the same wing being formed by at least two tabs succeeding one another in the longitudinal direction of the

  collecting box and connecting individually to the back.

  - The two branches are formed respectively by a single tongue and by two tongues framing the previous one in

  the longitudinal direction of the manifold.

  - Said attachment means comprise an opening in the proximal branch of each wing, cooperating by snap-fastening with a projection formed on the side

  corresponding to the manifold.

  - It includes two elastic jumpers overlapping the box

  collector in the vicinity of the two ends thereof.

  - The first heat exchanger comprises two manifold boxes adjacent to the two end faces of the block respectively and each provided with at least one fixing jumper, each of said other components being trapped between the jumper (s) associated with one of the boxes manifolds and the jumper (s) associated with the other manifold. - The first heat exchanger comprises two manifolds adjacent to the two end faces of the block respectively, one of which is provided with at least one jumper

  each of said other components being imprinted

  rang between the rider (s) and support legs

  rigid integral with the other manifold.

  - The first heat exchanger is a radiator for cooling the drive motor of a vehicle

automobile.

  - One of said other components is a second heat exchanger capable of allowing the circulation of a second fluid

  to be cooled by heat exchange with said air flow.

  - One of said other components is a nozzle specific to

channel said air flow.

  The characteristics and advantages of the invention will be

  described in more detail in the description below, in

  referring to the appended drawings, in which: - Figure 1 is a partial perspective view of a device according to the invention comprising as a first heat exchanger the radiator for cooling the drive motor of a motor vehicle, and as other components, a coolant condenser for air conditioning the passenger compartment of the vehicle, and a nozzle for guiding the air flow passing through the two exchangers; - Figure 2 is a perspective view of a jumper for fixing the other components on the radiator; - Figures 3 and 4 are schematic partial views in cross section of a variant slightly modified with respect to the device of Figure 1; - Figure 5 is a partial view of the radiator manifold opposite that shown in Figures 3 and 4; and - Figure 6 is a partial view of the device, in section

  along line VI-VI of Figure 5.

  The radiator 1 illustrated in FIGS. 1, 3 and 4 conventionally comprises a block or bundle 2 having the shape of a rectangular parallelepiped, having two opposite main faces 3 and 4 and two opposite end faces, one of which 5 is visible in Figures 3 and 4. Block 2 is intended to be crossed, from face 3 to face 4, by an air flow indicated by arrow F. The fluid to be cooled circulates in block 2 of l 'to one another of its end faces, for example inside elongated tubes perpendicular to these same faces, so as to exchange heat with the air flow F. The fluid circulates between the block 2 and a manifold 6 adjacent to the face 5, through the latter. Another manifold is placed opposite the other end face of the block, so that the fluid flows from one to the other of the boxes

  manifolds passing through block 2.

  Opposite the face 3 of the block, located upstream with respect to the air flow F, is arranged the air conditioning condenser 7 which also comprises a block 8, not shown in FIG. 1, having main faces 9, 10 parallel on faces 3, 4, a manifold 11 extending along the manifold 6, and another not shown manifold extending along the other manifold

of the radiator.

  Finally, the device comprises a nozzle 12 for guiding the

  air flow F between block 2 and a fan not shown

  tee, arranged opposite the downstream face 4 of the block.

  According to the invention, the condenser 7 and the nozzle 12 are fixed to the box 6 by means of two jumpers 20 shown in Figure 1 and one of which is also shown in Figures 2 to 4. Each jumper 20 is made to starting from an elastic metal sheet cut and folded so as to form a back 21 and two wings 22 and 23. As can be seen in FIG. 1, the two jumpers cover the manifold

  6, each in the vicinity of one of the ends thereof.

  The other manifold of the radiator can be fitted with jumpers arranged in the same way, or means of

  different retainers as described below. We will describe below

  after in detail the shape of one of the jumpers associated with the manifold 6, and its cooperation with it and with

  the other two components, this description being valid,

  mutatis mutandis, for the other rider (s).

  The jumper is symmetrical with respect to the median longitudinal plane P of the manifold 6, and also with respect to the plane of FIG. 3, perpendicular to the plane P. The wings

  22 and 23 correspond by the first of these symmetries.

  The back 21 extends substantially along a plane perpendicular to the plane P, and each of the wings 22 and 23 is subdivided, by slots made in the sheet according to planes parallel to the planes of Figures 3 and 4, in three tabs 22-1 , 22-2, 22-3, 23-1, 23-2, 23-3, which follow one another in the longitudinal direction of the manifold and are each connected to the back 21. The middle tabs 22-2 and 23-2 are symmetrical to each other with respect to the plane P, thus aue

  with respect to the axis of intersection of the two planes of symmetry

  sort. Each of the tabs 22-1, 22-3, 23-1 and 23-3 is symmetrical with the other three with respect to the two planes and to the above-mentioned axis respectively. The three tabs of a

  same wing are described below with reference to wing 23.

  These three tongues extend substantially in the same plane parallel to the plane P up to a certain distance from the back. Then, they deviate obliquely from the plane P while remaining approximately in the same plane. Finally, in their terminal region, the tongues move apart from each other in the direction of the air flow F, that is to say in the direction perpendicular to the plane P and to the plane of the faces 3 and 4, the end region 24 of the middle tab 22-2 extending substantially along a plane parallel to the plane P, while the end region of each of the lateral tabs 22-1 and 22-3 comprises a portion 25 substantially planar and perpendicular to the plane P , followed by a portion 26 curved so as to move away from the plane of the back 21, then

  of a final portion 27 curved in the opposite direction to the previous

  toothed. Terminal regions 24 and 25-27 of the wing tabs

  22 cooperate with the cylindrical tube wall of revolution

  tion of the manifold 11 of the condenser 7, the curvilinear portion 26 conforming to this wall and urging the tubular box both parallel to the plane P in the direction of

  the other manifold of the condenser and perpendicular-

  lying in plane P in the direction of region 24, which keeps the manifold 11 away from the manifold 6. Thus, the two jumpers associated with the manifold 6 cooperate with the other two jumpers to resiliently hold the condenser in the position appropriate. Thanks to the wings 23, the riders exercise the same function with respect to the nozzle 12, the latter having for this purpose, associated with each rider, an arm 30 extending perpendicular to the plane of the back 21 and comprising two portions of cylindrical surface of revolution 31 of the same diameter as the tubular wall of the manifold 11 and which cooperate in the same way as the latter with the secondary jumper formed by the end regions 24 and -27 of the tongues constituting the wing 23. A terminal projection 32 extending from the cylindrical surface 31 and arranged, in the longitudinal direction of the manifolds, between the tongues 23-1 and 23-3, serves as a stop for the latter and ensures the immobilization of the nozzle in this same direction. In the device of Figures 3 and 4, a projection 33 similar to the projection 32, omitted in the device of Figure 1, plays the same role in that

concerns the condenser.

  The fixing of the jumper 20 on the manifold 6 is ensured by two lugs 34 formed on the sides thereof, symmetrically to one another with respect to the plane P, which engage in respective holes 35 formed in the regions of the tongues 22-2 and 23-2 close to the back 21. The manifold 11 and the arm 30, by urging these tongues in the direction of the plane P, prevent them from being able to move apart and be released from the lugs 34. The back 21 is itself supported on the manifold 6, contributing to

  stable positioning of the jumper.

  The number of jumpers associated with the manifold, equal to two in the examples described, can vary depending on the length of the latter. Likewise, the number of tabs per wing, instead of being equal to three as described, can be equal to two or more than three. The rider may also have a shape other than that of a cut sheet and

folded.

  To simplify the drawing, in FIGS. 3 and 4, the planes of which respectively cut the central tabs 22-2 and 23-2 and the lateral tabs 22-1 and 23-1 of the rider,

  the manifolds 6 and 11 have been shown diagrammatically

  tick as being full, while they are fine

  heard hollow. The arm 30 and its projection 32 can also

be hollow.

  Figures 5 and 6 show means of connecting the conden-

  seur 7 and the nozzle 12 to the opposite manifold 40 different from the jumpers which connect them to the box 6. These connecting means, molded in one piece with the wall of the box 40, include two gutters 41, 42 elongated in the longitudinal direction of the manifold and whose concave surfaces substantially match a second manifold 43 of the condenser 7 and the rounded end of an arm 44 of the nozzle 12 similar to the arm 30. The edge 45, 46 of each of the gutters 41, 42 facing away from the manifold is curved outward to facilitate the placement of the corresponding component. At its two ends, each gutter is connected to the wall of the box by respective flat ribs 47 extending substantially in planes perpendicular to the longitudinal direction of the manifold. As with jumpers 20, two or more sets of gutters can be

  provided according to the length of the manifold.

  The assembly formed by the gutters and the ribs is rigid and provides stable support for the condenser and the nozzle

  when placing the jumpers 20.

Claims (13)

Claims   1. Cooling device comprising a first heat exchanger (1) comprising a block (2) having two opposite main faces (3, 4) and two opposite end faces (5), suitable for allowing circulation, of to each other of said end faces, of a first fluid to be cooled by heat exchange with an air flow (F) passing through the block from one to the other of its main faces, and at least one manifold (6) elongated along one (5) of said end faces so as to allow said first fluid to pass from the block to the manifold and / or vice versa, the device comprising in   in addition to two other components (7, 12) fixed to the first interchange   heat sink so as to extend respectively opposite said two main faces (3, 4), characterized in   what it includes, for fixing said other components   sants, at least one elastic jumper (20) straddling the manifold, having a back (21) and two wings (22,   23) which have hooking means (35) for immobilizing   read the jumper on the manifold, and come into contact respectively with the two components, each of the wings (22, 23) being subdivided into two branches (22-1, 22-3, 22-2, 23-1, 23- 3, 23-2) which deviate from each other in the direction of said air flow by forming together a jumper   secondary (24-27) to style the corresponding component.   2. Device according to claim 1, characterized in that the rider is reversible, each of its wings (22, 23)   being able to cooperate with any one of said components health (7, 12).   3. Device according to claim 2, characterized in that the jumper has a symmetry with respect to a plane (P) and / or a symmetry with respect to an axis, which make   match the two wings to each other.   4. Device according to one of the preceding claims,   characterized in that the rider's back rests on the manifold.   5. Device according to one of the preceding claims,   characterized in that the rider is a cut and folded sheet metal part, the branches of the same wing (22) being formed by at least two tongues (22-1, 22-2, 22-3) succeeding one another in the direction longitudinal of the box   collector and connecting individually to the back.   6. Device according to claim 5, characterized in that the two branches are respectively formed by a single tongue (22-2) and by two tongues (22-1, 22-3) framing the previous one in the longitudinal direction of the manifold.   7. Device according to one of the preceding claims,   characterized in that said attachment means comprise an opening (35) formed in the proximal branch (22-2) of each wing, cooperating by snap-fastening with a projection   (34) formed on the corresponding side of the manifold this (6).   8. Device according to one of the preceding claims,   characterized in that it comprises two elastic jumpers (21) overlapping the manifold (6) in the vicinity of the two ends of it.   9. Device according to one of the preceding claims,   characterized in that the first heat exchanger (1) comprises two manifolds adjacent to the two end faces of the block respectively and each provided with at least   minus one fixing jumper, each of said other components   sants (7, 12) being trapped between the rider (s) associated with one of the manifolds and the   jumpers associated with the other manifold.   10. Device according to one of claims 1 to 8,   characterized in that the first heat exchanger (1) comprises two manifolds adjacent to the two end faces of the block respectively, one of which is provided with at least one fixing jumper, each of said other components (7, 12 ) being trapped between the rider (s) and rigid retaining lugs secured to the other manifold.   11. Device according to one of the preceding claims,   characterized in that the first heat exchanger is a radiator for cooling the drive motor of a motor vehicle.   12. Device according to one of the preceding claims,   characterized in that one of said other components is a second heat exchanger (7) suitable for allowing the circulation of a second fluid to be cooled by exchange of heat with said air flow.   13. Device according to one of the preceding claims,   characterized in that one of said other components is a   nozzle (12) suitable for channeling said air flow.