EP2315996B1 - Assembly device for a refrigeration unit fan - Google Patents

Assembly device for a refrigeration unit fan Download PDF

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Publication number
EP2315996B1
EP2315996B1 EP09772572.5A EP09772572A EP2315996B1 EP 2315996 B1 EP2315996 B1 EP 2315996B1 EP 09772572 A EP09772572 A EP 09772572A EP 2315996 B1 EP2315996 B1 EP 2315996B1
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EP
European Patent Office
Prior art keywords
cover
face
exchanger
fan
clips
Prior art date
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Application number
EP09772572.5A
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German (de)
French (fr)
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EP2315996A1 (en
Inventor
Ghislain Perrot
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.)
Tecumseh Europe Sales and Logistics SAS
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Tecumseh Europe Sales and Logistics SAS
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Priority to SI200931897T priority Critical patent/SI2315996T1/en
Publication of EP2315996A1 publication Critical patent/EP2315996A1/en
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Publication of EP2315996B1 publication Critical patent/EP2315996B1/en
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D23/00—General constructional features
    • F25D23/003—General constructional features for cooling refrigerating machinery
    • 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
    • F28F9/002—Casings in the form of plate-like arrangements; Frames enclosing a heat exchange core with fastening means for other structures
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2250/00—Arrangements for modifying the flow of the heat exchange media, e.g. flow guiding means; Particular flow patterns
    • F28F2250/08—Fluid driving means, e.g. pumps, fans
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2275/00—Fastening; Joining
    • F28F2275/08—Fastening; Joining by clamping or clipping
    • F28F2275/085—Fastening; Joining by clamping or clipping with snap connection

Definitions

  • the invention relates to a device for assembling a fan for a refrigeration unit.
  • the invention is advantageously used in the field of commercial refrigeration and for example for the cooling of beverages packaged in bottles and cans arranged inside a thermally insulated enclosure having, for example, the shape of a cabinet . It is understood that the invention is not limited to the cooling of beverages or the field of commercial cold. Nevertheless, to facilitate the understanding of the invention, it will be described in connection with a beverage packaging cabinet.
  • This type of cabinet is located mainly in public places such as airports, hotels, shopping centers and is intended for the sale of drinks.
  • the cabinet has a rigid box closed by a door, usually glass, allowing access to the products arranged in the cabinet.
  • a refrigeration unit, placed in the cabinet makes it autonomous. Specifically, to ensure its operation, the cabinet needs only an external power supply.
  • the refrigeration unit of refrigerated cabinets consists of a drawer located at the bottom of the cabinet.
  • This arrangement has the advantage of allowing easy extraction of the refrigeration unit for maintenance operations.
  • Such an embodiment is for example described in the French patent application FR 2,855,871 filed in the name of the plaintiff.
  • the refrigeration device comprises an evaporation stage and a condensation stage.
  • Each stage comprises an exchanger for transferring thermal energy between an air flow and a heat transfer fluid.
  • the air flows are driven by fans to create a forced convection at the corresponding exchanger.
  • the various components of the refrigeration unit are assembled on a frame forming a bearing structure of the drawer located in the lower part of the cabinet. Walls attached to the structure guide the flow of air entrained by the fans.
  • the invention is described in relation to a refrigeration unit fitted to a refrigerating cabinet. It is understood that the invention can be implemented for any assembly of a fan with respect to an exchanger, the fan generating a flow of air passing through the exchanger.
  • the figure 1 schematically represents functional elements of a refrigeration unit 10 comprising an evaporation stage 11 and a condensation stage 12.
  • the evaporation stage 11 comprises an evaporator 13 in which an air stream 14 circulating in a chamber is cooled.
  • useful compartment of a refrigerated cabinet not shown.
  • the useful compartment is intended to keep for example food at a temperature below ambient.
  • the air flow 14 is driven by a fan 15 arranged downstream of the evaporator 13.
  • a heat transfer fluid circulates in an expansion member 16 and then in the evaporator 13. Downstream of the evaporator 13, the coolant in the gaseous state sees its pressure increase in a compressor 17 belonging to the stage of condensation 12. The coolant is then cooled in a condenser 18 by thermal contact with a second forced air circulation 19 by a fan 20 shown downstream of the condenser 18.
  • the evaporator 13 and the condenser 18 are both exchangers allowing the transfer of thermal energy between the coolant and the air flow therethrough.
  • the coolant flows towards the expansion member 16 located in the evaporation stage 11.
  • the functional diagram of the refrigeration device 10 has been deliberately simplified. It is, of course, possible to add other components to improve its operation.
  • the figure 2 represents in perspective the relative position of the various components of the refrigeration group represented on the figure 1 . It contains, attached to a frame 21, the compressor 17, the condenser 18 and the fan 20.
  • the frame 21 has the shape of a plate which once in place in the refrigerating cabinet is placed on a floor of the wardrobe.
  • On the chassis 21 can also fix a housing 22 enclosing various electrical components allow the operation of the electrical appliances of the refrigeration group such as the fans 15 and 20 and the compressor 17. It is also possible to attach to the chassis a tray 23 for recovering condensates from of the useful compartment of the cabinet and the evaporation stage 11.
  • a hot pipe 24 in which circulates the coolant can meander in the bottom of the tank 23.
  • the figure 3 represents in perspective a fan assembly device 15 on the evaporator 13.
  • the assembly shown here, can also be implemented for the assembly of the fan 20 on the condenser 18.
  • the device comprises a hood 35 supporting the fan 15.
  • the cover 35 is supported by the evaporator 13.
  • the cover 35 guides the flow of air entrained by the fan 15 and passing through the evaporator 13 so that the entire air flow entrained by the fan 15 passes through the evaporator 13.
  • the cover 35 comprises a face 36 bearing on a wall 37 of the evaporator 13, a tubular portion 38 and a grid 39.
  • the tubular portion 38 is connected to one from its ends to the face 36 and the other of its ends to the grid 39.
  • the fan 15 is fixed to the center of the grid 39 and the fan blades 15 rotate inside the tubular portion 38.
  • the figure 4 represents the evaporator 13, the fan 15 and the cover 35 in a view by a plane perpendicular to an axis of rotation of the fan 15.
  • the fan 15 is centered with respect to the evaporator 13, thus ensuring better efficiency in the heat transfer between the air flow driven by the fan 15 and the evaporator 13.
  • the only piece serving as an intermediate between the fan 15 and the evaporator 13 is the cap 35.
  • the dimension chain linking the fan 15 to the Evaporator 13 is thus very short. This ensures a good centering of the fan 15 despite unavoidable dispersions in the manufacture of different mechanical parts.
  • the assembly device comprises a plurality of grippers 40 belonging to the cover 35.
  • the various grippers 40 are advantageously identical to simplify their production.
  • the clamps 40 are distributed around the axis of the fan 15 in zones of the evaporator 13 outside its active part, the portion through which the air flow entrained by the fan 15.
  • Each clamp 40 provides a point pressure of the hood
  • the distribution of the clamps 40 is defined as a function of the rigidity of the two elements in contact, the evaporator 13 and the cover 35, so as to ensure sufficient sealing of the air flow.
  • the figure 5 shows in partial section the cover 35 and the wall 37 of the evaporator 13 at one of the clamps 40.
  • the cover 35 and the evaporator 13 are shown in the assembled position.
  • the wall 37 of the evaporator 13 comprises two faces 41 and 42 opposite.
  • the face 36 of the cover 35 bears on the face 41 of the evaporator 13 and the clamps 40 bear against the face 42.
  • the clamps 40 have a shape allowing the assembly of the fan 15 by means of a translational movement of the cover 35 with respect to the exchanger 13 along the wall 37.
  • the direction of the translational movement is carried by an axis z parallel to the plane of the wall 37.
  • Each clamp 40 corresponds to an opening 43 of the evaporator 13 allowing at the gripper 40 to access the second face 42.
  • the clamps 40 belong to the cover 35. It is of course possible to make clamps in the wall 37 of the evaporator 13. In this case, the clamps bear against a face of the hood 35 opposite the face 36 and the openings corresponding to each clamp are then made in the cover 35.
  • the clamp 40 in the form of a hook, a free end 44 comprises a bulge 45 extending towards the face 42 and to ensure a pressure of the cap 35 against the face 41.
  • the clamp 40 extends from a wall 46 of the cover 35 to its free end 44.
  • the wall 46 bears against the wall 37 of the evaporator 13.
  • the presence of the bulge 45 makes it possible to control the point of contact between the clamp 40 and the face 42.
  • the point of contact is on this bulge 45.
  • the force exerted by the clamp 40 is a function of the stiffness of the clamp 40 between its hooking on the cover 35 and the point of contact which is always made on the bulge 45.
  • the force is also a function of the thickness of the wall 37.
  • the force exerted by the clamp 40 is independent of the position of an edge 47 of the opening 43, edge located closer to the clamp 40.
  • the contact between the clamp 40 and the wall 37 could be at the edge 47, which would cause a significant variation in the effort depending on the manufacturing dispersions of the opening 43. Such a variation could cause a rupture of the clamp 40.
  • the cover 35 can be open facing the clamp 40 in order to facilitate the production of the cover 35, for example by molding.
  • the Figures 6, 7 and 8 represent several phases in the installation of a clamp 40.
  • the cover 35 is at a distance from the wall 37.
  • the cover 35 is brought closer in a horizontal direction x until the faces 36 and 41 come into contact with one of the other as depicted on the figure 7 .
  • the clamp 40 enters the opening 43. It is necessary that in a vertical direction carried by the axis z the dimensions of the opening 43 are greater than those of the clamp 40 so that the clamp 40 can freely enter the opening 43.
  • the cover 34 is moved along the wall 37. The direction of movement of the cover 35 is -z on the Figures 7 and 8 .
  • the final position at the end of this second phase is represented on the figure 8 and corresponds to the figure 5 .
  • the free end 44 of the clamp 40 is located above the edge 47 and during the second phase, the free end 44 passes below the edge 47 by sliding along the face 42 of the wall 37.
  • the faces 36 and 41 remain in contact with each other. 'other.
  • FIG. 9 to 13 represent several phases in the introduction of the cover 35 on the evaporator 13.
  • a single assembly comprising a guide 50, a light 51 and a finger 52 is shown. It is of course possible to provide several sets, for example two, one on each side of the fan 15 as shown in FIG. figure 4 .
  • the cover 35 is remote from the wall 37 of the evaporator 13.
  • the cover 35 rests in its lower part 56 on the guide 50.
  • the two faces 36 and 41 are not parallel.
  • the movement of the cover 35 is made along the x axis until reaching the position represented on the figure 10 .
  • the light 51 opens into the wall 37 and in this position, the finger 52 abuts against the wall 37.
  • the finger 52 can penetrate into the light 51 only when the cover 35 recovers until the faces 36 and 41 become parallel as shown on the figure 11 .
  • the length of the finger 52 in the x direction is determined so that, when it abuts against the wall 37, the clamps 40 remain at a distance from the wall 37 without being able to penetrate into the corresponding openings 43.
  • the penetration of the finger 52 into the lumen 51 allows the two faces 36 and 41 to be brought together until the clips 40 penetrate into their respective apertures 43 as shown on the figure 12 .
  • This position of the clamps 40 with respect to the openings 43 corresponds to that described in FIG. figure 7 .
  • the evaporator 13 comprises a groove 55 allowing the cover 35 to escape the guide 50, when the clamps 40 have all penetrated into their corresponding openings 43.
  • the groove 55 also serves as a guide in the movement of the cover 35 along the axis z along the wall 37.
  • the groove 55 extends along the axis z perpendicular to the guide 50.
  • a lower portion 56 of the cover 35 descends in the groove 55 during the movement of the cover 35 along the axis z to clamp the wall 37 and reach the position shown on the figure 13 .
  • the height of the light 51 allows the finger 52 to move in the light 51 during the downward movement of the cover 35.
  • the length of the finger 52 is also defined so that the lower part 56 can not engage in the groove 55 until the finger 52 has penetrated the light 51.
  • the position of the groove 55 also makes it possible to avoid, when the hood 35 is tilted, the opposite of that represented on the figure 10 , a movement of the hood 35 in a direction -z. Indeed, in the case of a reverse inclination, the clamps 40 located at the top of the cover 35 could have penetrated into their respective openings 43 while the clamps located at the bottom of the cover 35 would be outside their openings 43.
  • the groove 55 also contributes to maintaining the hood 35 under pressure against the wall 37. More specifically, an edge 57 of the groove 55 bears against the lower part 56 when the lower part 56 engages in the groove 55 in its translational movement. along the z axis. For this purpose, it is possible to provide a negative clearance of a few tenths of millimeters between the edge 57 and the lower part 56 of the cover 35 when the face 36 of the cover 35 is in contact with the face 41 of the exchanger in the position of the figure 12 .
  • the negative clearance is defined in the direction x and ensures the pressurization of the two faces 36 and 41 against each other when the cover 35 passes from the position of the figure 12 to that of the figure 13 .
  • the cover 35 comprises a stop 60 making it possible to bear against the evaporator 13 during a translational movement the cover 35 with respect to the evaporator 13 along the wall 37, movement allowing the assembly of the fan 15, the stop 60 being distinct from the clamps 40.
  • the stop 60 is for example located in the upper part of the cover 35.
  • the stop 60 comes into contact with the evaporator 13 when the clamps 40 are engaged behind the wall 37.
  • the stop 60 allows the clamps 40 not to come into contact with the corresponding edges 47.
  • the evaporator 13 has a mainly parallelepipedal shape, the wall 37 forming a vertical face of the parallelepiped.
  • the stop may cover the whole of a horizontal upper face of the parallelepiped in order to seal the air flow entrained by the fan 15 in the upper part thereof.
  • the device comprises means for locking the exchanger 13 and the cover 35 relative to each other.
  • These means comprise for example two screws 65 and 66 allowing the cover 35 to be fixed on the evaporator 13.
  • the two screws 65 and 66 are for example arranged between two adjacent clamps 40.
  • 65 and 66 can be provided a smooth hole made in the cover 35 and a tapped hole made in the wall 37. These two holes are aligned, to allow the introduction of the screws 65 and 66, only when the position of the figure 13 is reached.
  • the screws 65 and 66 also contribute to keeping the hood 35 under pressure against the wall 37.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)

Description

L'invention concerne un dispositif d'assemblage d'un ventilateur pour groupe de réfrigération. L'invention est avantageusement mise en oeuvre dans le domaine du froid commercial et par exemple pour le refroidissement de boissons conditionnées en bouteilles et en canettes disposées à l'intérieur d'une enceinte thermiquement isolée ayant, par exemple, la forme d'une armoire. Il est bien entendu que l'invention n'est pas limitée au refroidissement de boissons ni au domaine du froid commercial. Néanmoins, afin de faciliter la compréhension de l'invention, celle-ci sera décrite en rapport à une armoire de conditionnement de boisson. Ce type d'armoire est disposé principalement dans des lieux publics tels que des aéroports, hôtels, centres commerciaux et est destiné à la vente des boissons. L'armoire comporte un caisson rigide fermé par une porte, généralement vitrée, permettant l'accès aux produits disposés dans l'armoire. Un groupe de réfrigération, disposé dans l'armoire, rend celle-ci autonome. Plus précisément, pour assurer son fonctionnement, l'armoire n'a besoin que d'une alimentation électrique extérieure.The invention relates to a device for assembling a fan for a refrigeration unit. The invention is advantageously used in the field of commercial refrigeration and for example for the cooling of beverages packaged in bottles and cans arranged inside a thermally insulated enclosure having, for example, the shape of a cabinet . It is understood that the invention is not limited to the cooling of beverages or the field of commercial cold. Nevertheless, to facilitate the understanding of the invention, it will be described in connection with a beverage packaging cabinet. This type of cabinet is located mainly in public places such as airports, hotels, shopping centers and is intended for the sale of drinks. The cabinet has a rigid box closed by a door, usually glass, allowing access to the products arranged in the cabinet. A refrigeration unit, placed in the cabinet, makes it autonomous. Specifically, to ensure its operation, the cabinet needs only an external power supply.

De façon connue, le groupe de réfrigération d'armoires frigorifiques est constitué d'un tiroir situé en partie basse de l'armoire. Cette disposition présente l'avantage de permettre une extraction facile du groupe de réfrigération pour des opérations de maintenance. Une telle réalisation est par exemple décrite dans la demande de brevet française FR 2 855 871 déposé au nom de la demanderesse.In a known manner, the refrigeration unit of refrigerated cabinets consists of a drawer located at the bottom of the cabinet. This arrangement has the advantage of allowing easy extraction of the refrigeration unit for maintenance operations. Such an embodiment is for example described in the French patent application FR 2,855,871 filed in the name of the plaintiff.

Le dispositif de réfrigération comprend un étage d'évaporation et un étage de condensation. Chaque étage comprend un échangeur permettant de transférer de l'énergie thermique entre un flux d'air et un fluide caloporteur. Les flux d'air sont entrainés par des ventilateurs afin de créer une convection forcée au niveau de l'échangeur correspondant.The refrigeration device comprises an evaporation stage and a condensation stage. Each stage comprises an exchanger for transferring thermal energy between an air flow and a heat transfer fluid. The air flows are driven by fans to create a forced convection at the corresponding exchanger.

A ce jour, les différents composants du groupe de réfrigération sont assemblés sur un châssis formant une structure porteuse du tiroir situé en partie basse de l'armoire. Des parois rapportées sur la structure permettent de guider les flux d'air entrainés par les ventilateurs.To date, the various components of the refrigeration unit are assembled on a frame forming a bearing structure of the drawer located in the lower part of the cabinet. Walls attached to the structure guide the flow of air entrained by the fans.

Ce mode d'assemblage est complexe à mettre en oeuvre et le guidage des flux d'air est imparfait. Plus précisément, la totalité du flux d'air entrainé par un ventilateur ne traverse pas l'échangeur correspondant ce qui réduit le rendement du groupe de réfrigération. De plus, du fait des chaines de cotes longues, le ventilateur peut être décentré par rapport à l'échangeur associé, ce qui nuit également au rendement du groupe frigorifique. Le document US 4 742 691 décrit un dispositif d'assemblage d'un ventilateur pour une groupe de réfrigération. L'invention vise à pallier tout ou partie des problèmes cités plus haut en simplifiant le montage d'un ventilateur par rapport à l'échangeur qui lui est associé.This method of assembly is complex to implement and the guiding of air flows is imperfect. More specifically, the entire air flow driven by a fan does not pass through the corresponding exchanger which reduces the efficiency of the refrigeration unit. In addition, because of long chains of dimensions, the fan can be off-center with respect to the associated exchanger, which also affects the performance of the refrigeration unit. The document US 4,742,691 describes a device for assembling a fan for a refrigeration unit. The invention aims to overcome all or part of the problems mentioned above by simplifying the mounting of a fan relative to the exchanger associated with it.

A cet effet, l'invention a pour objet un dispositif d'assemblage d'un ventilateur pour groupe de réfrigération, caractérisé en ce qu'il comprend :

  • un capot supportant le ventilateur,
  • un échangeur comprenant une paroi, le capot et la paroi formant deux éléments du dispositif, le premier élément prenant appui contre une première face du second élément,
  • une pluralité de pinces appartenant au premier élément et prenant appui contre une seconde face du second élément, la seconde face étant opposée à la première face.
For this purpose, the subject of the invention is a device for assembling a fan for a refrigeration unit, characterized in that it comprises:
  • a hood supporting the fan,
  • an exchanger comprising a wall, the cover and the wall forming two elements of the device, the first element bearing against a first face of the second element,
  • a plurality of grippers belonging to the first element and bearing against a second face of the second element, the second face being opposed to the first face.

L'invention sera mieux comprise et d'autres avantages apparaîtront à la lecture de la description détaillée d'un mode de réalisation donné à titre d'exemple, description illustrée par le dessin joint dans lequel :

  • la figure 1 représente schématiquement le fonctionnement d'un dispositif de réfrigération ;
  • la figure 2 représente en perspective les différents éléments fonctionnels décrits sur la figure 1 ;
  • la figure 3 représente en perspective le montage d'un ventilateur sur un échangeur;
  • la figure 4 représente dans une vue à plat le montage du ventilateur sur l'échangeur ;
  • la figure 5 représente en coupe une pince permettant l'appui d'un capot sur un échangeur;
  • les figures 6, 7 et 8 représentent plusieurs phases dans la mise en place d'une pince ;
  • les figures 9 à 13 représentent plusieurs phases dans la mise en place du capot sur l'échangeur.
The invention will be better understood and other advantages will appear on reading the detailed description of an embodiment given by way of example, a description illustrated by the attached drawing in which:
  • the figure 1 schematically represents the operation of a refrigeration device;
  • the figure 2 represents in perspective the various functional elements described on the figure 1 ;
  • the figure 3 represents in perspective the mounting of a fan on a heat exchanger;
  • the figure 4 represents in a flat view mounting the fan on the exchanger;
  • the figure 5 represents in section a clamp for supporting a hood on a heat exchanger;
  • the Figures 6, 7 and 8 represent several phases in the installation of a clamp;
  • the Figures 9 to 13 represent several phases in the installation of the hood on the exchanger.

Par souci de clarté, les mêmes éléments porteront les mêmes repères dans les différentes figures.For the sake of clarity, the same elements will bear the same references in the different figures.

L'invention est décrite en rapport à un groupe de réfrigération équipant une armoire frigorifique. Il est bien entendu que l'invention peut être mise en oeuvre pour tout assemblage d'un ventilateur par rapport à un échangeur, le ventilateur générant un flux d'air traversant l'échangeur.The invention is described in relation to a refrigeration unit fitted to a refrigerating cabinet. It is understood that the invention can be implemented for any assembly of a fan with respect to an exchanger, the fan generating a flow of air passing through the exchanger.

La figure 1 représente schématiquement des éléments fonctionnels d'un groupe de réfrigération 10 comprenant un étage d'évaporation 11 et un étage de condensation 12. L'étage d'évaporation 11 comporte un évaporateur 13 dans lequel se refroidit un flux d'air 14 circulant dans un compartiment utile d'une armoire frigorifique non représentée. Le compartiment utile est destiné à conserver par exemple des denrées alimentaires à une température inférieure à l'ambiante. Le flux d'air 14 est entraîné par un ventilateur 15 disposé en aval de l'évaporateur 13.The figure 1 schematically represents functional elements of a refrigeration unit 10 comprising an evaporation stage 11 and a condensation stage 12. The evaporation stage 11 comprises an evaporator 13 in which an air stream 14 circulating in a chamber is cooled. useful compartment of a refrigerated cabinet not shown. The useful compartment is intended to keep for example food at a temperature below ambient. The air flow 14 is driven by a fan 15 arranged downstream of the evaporator 13.

Par ailleurs, un fluide caloporteur circule dans un organe de détente 16 puis dans l'évaporateur 13. En aval de l'évaporateur 13, le fluide caloporteur à l'état gazeux voit sa pression augmenter dans un compresseur 17 appartenant à l'étage de condensation 12. Le fluide caloporteur est ensuite refroidi dans un condenseur 18 par contact thermique avec une seconde circulation d'air forcé 19 par un ventilateur 20 représenté en aval du condenseur 18. L'évaporateur 13 et le condenseur 18 sont tous deux des échangeurs permettant le transfert d'énergie thermique entre le fluide caloporteur et le flux d'air qui le traversent. En sortie du condenseur 18, le fluide caloporteur se dirige vers l'organe de détente 16 situé dans l'étage d'évaporation 11. Le schéma fonctionnel du dispositif de réfrigération 10 a volontairement été simplifié. Il est, bien entendu, possible d'y adjoindre d'autres composants permettant d'améliorer son fonctionnement.Furthermore, a heat transfer fluid circulates in an expansion member 16 and then in the evaporator 13. Downstream of the evaporator 13, the coolant in the gaseous state sees its pressure increase in a compressor 17 belonging to the stage of condensation 12. The coolant is then cooled in a condenser 18 by thermal contact with a second forced air circulation 19 by a fan 20 shown downstream of the condenser 18. The evaporator 13 and the condenser 18 are both exchangers allowing the transfer of thermal energy between the coolant and the air flow therethrough. At the outlet of the condenser 18, the coolant flows towards the expansion member 16 located in the evaporation stage 11. The functional diagram of the refrigeration device 10 has been deliberately simplified. It is, of course, possible to add other components to improve its operation.

La figure 2 représente en perspective la position relative des différents composants du groupe de réfrigération représenté sur la figure 1. On y retrouve, fixé à un châssis 21, le compresseur 17, le condenseur 18 et le ventilateur 20. Le châssis 21 a la forme d'une plaque qui une fois en place dans l'armoire frigorifique est posée sur un planché de l'armoire. Sur le châssis 21 on peut également fixer un boîtier 22 enfermant différents composants électriques permettent le fonctionnement des appareils électriques du groupe de réfrigération tels que les ventilateurs 15 et 20 ainsi que le compresseur 17. On peut également fixer au châssis un bac 23 de récupération de condensats issus du compartiment utile de l'armoire et de l'étage d'évaporation 11. Afin de permettre l'évaporation dans l'air ambiant des condensats, une canalisation chaude 24 dans laquelle circule le fluide caloporteur peut serpenter dans le fond du bac 23. Sur la figure 2 on voit également la position de l'évaporateur 13 et du ventilateur 15. Ces deux éléments sont portés par un isolant thermique non représenté sur la figure 2 et permettant d'isoler les deux étages 11 et 12 l'un de l'autre.The figure 2 represents in perspective the relative position of the various components of the refrigeration group represented on the figure 1 . It contains, attached to a frame 21, the compressor 17, the condenser 18 and the fan 20. The frame 21 has the shape of a plate which once in place in the refrigerating cabinet is placed on a floor of the wardrobe. On the chassis 21 can also fix a housing 22 enclosing various electrical components allow the operation of the electrical appliances of the refrigeration group such as the fans 15 and 20 and the compressor 17. It is also possible to attach to the chassis a tray 23 for recovering condensates from of the useful compartment of the cabinet and the evaporation stage 11. In order to allow the evaporation in the ambient air of the condensates, a hot pipe 24 in which circulates the coolant can meander in the bottom of the tank 23. On the figure 2 we also see the position of the evaporator 13 and the fan 15. These two elements are carried by a thermal insulation not shown on the figure 2 and for isolating the two stages 11 and 12 from each other.

La figure 3 représente en perspective un dispositif d'assemblage du ventilateur 15 sur l'évaporateur 13. Le montage, ici représenté, peut également être mis en oeuvre pour l'assemblage du ventilateur 20 sur le condenseur 18. Le dispositif comprend un capot 35 supportant le ventilateur 15. Le capot 35 est quant à lui supporté par l'évaporateur 13. Avantageusement, le capot 35 guide le flux d'air entrainé par le ventilateur 15 et traversant l'évaporateur 13 afin que la totalité du flux d'air entrainé par le ventilateur 15 traverse l'évaporateur 13. A cet effet, le capot 35 comprend une face 36 prenant appui sur une paroi 37 de l'évaporateur 13, une partie tubulaire 38 et une grille 39. La partie tubulaire 38 est raccordée à l'une de ses extrémités à la face 36 et à l'autre de ses extrémités à la grille 39. Le ventilateur 15 est fixé au centre de la grille 39 et des pales du ventilateur 15 tournent à l'intérieur de la partie tubulaire 38.The figure 3 represents in perspective a fan assembly device 15 on the evaporator 13. The assembly, shown here, can also be implemented for the assembly of the fan 20 on the condenser 18. The device comprises a hood 35 supporting the fan 15. The cover 35 is supported by the evaporator 13. Advantageously, the cover 35 guides the flow of air entrained by the fan 15 and passing through the evaporator 13 so that the entire air flow entrained by the fan 15 passes through the evaporator 13. For this purpose, the cover 35 comprises a face 36 bearing on a wall 37 of the evaporator 13, a tubular portion 38 and a grid 39. The tubular portion 38 is connected to one from its ends to the face 36 and the other of its ends to the grid 39. The fan 15 is fixed to the center of the grid 39 and the fan blades 15 rotate inside the tubular portion 38.

La figure 4 représente l'évaporateur 13, le ventilateur 15 et la capot 35 dans une vue par un plan perpendiculaire à un axe de rotation du ventilateur 15. Le ventilateur 15 est bien centré par rapport à l'évaporateur 13, assurant ainsi une meilleure efficacité dans le transfert thermique entre le flux d'air entrainé par le ventilateur 15 et l'évaporateur 13. La seule pièce servant d'intermédiaire entre le ventilateur 15 et l'évaporateur 13 est le capot 35. La chaine de cote liant le ventilateur 15 à l'évaporateur 13 est ainsi très courte. Ceci permet d'assurer un bon centrage du ventilateur 15 malgré des dispersions inévitables dans la fabrication des différentes pièces mécaniques.The figure 4 represents the evaporator 13, the fan 15 and the cover 35 in a view by a plane perpendicular to an axis of rotation of the fan 15. The fan 15 is centered with respect to the evaporator 13, thus ensuring better efficiency in the heat transfer between the air flow driven by the fan 15 and the evaporator 13. The only piece serving as an intermediate between the fan 15 and the evaporator 13 is the cap 35. The dimension chain linking the fan 15 to the Evaporator 13 is thus very short. This ensures a good centering of the fan 15 despite unavoidable dispersions in the manufacture of different mechanical parts.

Le dispositif d'assemblage comprend une pluralité de pinces 40 appartenant au capot 35. Les différentes pinces 40 sont avantageusement identiques pour simplifier leur réalisation. Les pinces 40 sont réparties autour de l'axe du ventilateur 15 dans des zones de l'évaporateur 13 extérieure à sa partie active, partie traversée par le flux d'air entrainé par le ventilateur 15. Chaque pince 40 assure une pression ponctuelle du capot 35 contre l'évaporateur 13. La répartition des pinces 40 est définie en fonction de la rigidité des deux éléments en contact, évaporateur 13 et capot 35, de manière à assurer une étanchéité suffisante du flux d'air.The assembly device comprises a plurality of grippers 40 belonging to the cover 35. The various grippers 40 are advantageously identical to simplify their production. The clamps 40 are distributed around the axis of the fan 15 in zones of the evaporator 13 outside its active part, the portion through which the air flow entrained by the fan 15. Each clamp 40 provides a point pressure of the hood The distribution of the clamps 40 is defined as a function of the rigidity of the two elements in contact, the evaporator 13 and the cover 35, so as to ensure sufficient sealing of the air flow.

La figure 5 représente en coupe partielle le capot 35 et la paroi 37 de l'évaporateur 13 au niveau d'une des pinces 40. Le capot 35 et l'évaporateur 13 sont représentés en position assemblée. La paroi 37 de l'évaporateur 13 comprend deux faces 41 et 42 opposées. La face 36 du capot 35 prend appui sur la face 41 de l'évaporateur 13 et les pinces 40 prennent appui contre la face 42. Les pinces 40 ont une forme permettant l'assemblage du ventilateur 15 au moyen d'un mouvement de translation du capot 35 par rapport à l'échangeur 13 le long de la paroi 37. La direction du mouvement de translation est portée par un axe z parallèle au plan de la paroi 37. A chaque pince 40 correspond une ouverture 43 de l'évaporateur 13 permettant à la pince 40 d'accéder à la seconde face 42.The figure 5 shows in partial section the cover 35 and the wall 37 of the evaporator 13 at one of the clamps 40. The cover 35 and the evaporator 13 are shown in the assembled position. The wall 37 of the evaporator 13 comprises two faces 41 and 42 opposite. The face 36 of the cover 35 bears on the face 41 of the evaporator 13 and the clamps 40 bear against the face 42. The clamps 40 have a shape allowing the assembly of the fan 15 by means of a translational movement of the cover 35 with respect to the exchanger 13 along the wall 37. The direction of the translational movement is carried by an axis z parallel to the plane of the wall 37. Each clamp 40 corresponds to an opening 43 of the evaporator 13 allowing at the gripper 40 to access the second face 42.

Dans l'exemple représenté, les pinces 40 appartiennent au capot 35. Il est bien entendu possible réaliser des pinces dans la paroi 37 de l'évaporateur 13. Dans ce cas, les pinces prennent appui contre une face du capot 35 opposée à la face 36 et les ouvertures correspondant à chaque pince sont alors réalisées dans le capot 35.In the example shown, the clamps 40 belong to the cover 35. It is of course possible to make clamps in the wall 37 of the evaporator 13. In this case, the clamps bear against a face of the hood 35 opposite the face 36 and the openings corresponding to each clamp are then made in the cover 35.

Avantageusement la pince 40 à la forme d'un crochet dont une extrémité libre 44 comprend un renflement 45 s'étendant en direction de la face 42 et permettant d'assurer une pression du capot 35 contre la face 41. La pince 40 s'étend depuis une paroi 46 du capot 35 jusqu'à son extrémité libre 44. La paroi 46 vient en appui contre la paroi 37 de l'évaporateur 13. La présence du renflement 45 permet de maîtriser le point de contact entre la pince 40 et la face 42. Le point de contact se fait sur ce renflement 45. L'effort exercé par la pince 40 est fonction de la raideur de la pince 40 entre son accrochage sur le capot 35 et le point de contact qui se fait toujours sur le renflement 45. L'effort est également fonction de l'épaisseur de la paroi 37. Grâce à la présence du renflement 45, l'effort exercé par la pince 40 est indépendant de la position d'un bord 47 de l'ouverture 43, bord situé au plus près de la pince 40. En l'absence de renflement 45, le contact entre la pince 40 et la paroi 37 pourrait se faire au niveau du bord 47, ce qui entrainerait une variation importante de l'effort en fonction des dispersions de fabrication de l'ouverture 43. Une telle variation pourrait entraîner une rupture de la pince 40. On peut prévoir une nervure 48 tout au long des pinces 40 pour augmenter sa raideur. On peut également prévoir un chanfrein 49 réalisé au niveau de l'extrémité 44 de la pince 40 afin de faciliter l'insertion de la pince 40 le long de la face 42, notamment lorsque l'extrémité 44 de la pince 40 touche le bord 47.Advantageously the clamp 40 in the form of a hook, a free end 44 comprises a bulge 45 extending towards the face 42 and to ensure a pressure of the cap 35 against the face 41. The clamp 40 extends from a wall 46 of the cover 35 to its free end 44. The wall 46 bears against the wall 37 of the evaporator 13. The presence of the bulge 45 makes it possible to control the point of contact between the clamp 40 and the face 42. The point of contact is on this bulge 45. The force exerted by the clamp 40 is a function of the stiffness of the clamp 40 between its hooking on the cover 35 and the point of contact which is always made on the bulge 45. The force is also a function of the thickness of the wall 37. Thanks to the presence of the bulge 45, the force exerted by the clamp 40 is independent of the position of an edge 47 of the opening 43, edge located closer to the clamp 40. In the absence of bulge 45, the contact between the clamp 40 and the wall 37 could be at the edge 47, which would cause a significant variation in the effort depending on the manufacturing dispersions of the opening 43. Such a variation could cause a rupture of the clamp 40. It is possible to provide a rib 48 throughout the clamps 40 to increase its stiffness. One can also provide a chamfer 49 made at the end 44 of the clamp 40 to facilitate the insertion of the clamp 40 along the face 42, especially when the end 44 of the clamp 40 touches the edge 47 .

De plus, aucun contact dans une direction verticale de la figure 5, représentée par l'axe z, n'existe entre le capot 35 et l'évaporateur 13. Un tel contact ne pourrait se faire qu'au niveau de l'accrochage entre la pince 40 et le capot 35. Cette zone d'accrochage est fragile et on risquerait des ruptures de pinces 40 dans cette zone.In addition, no contact in a vertical direction of the figure 5 , represented by the axis z, exists between the cover 35 and the evaporator 13. Such contact could be made only at the level of the attachment between the clamp 40 and the cover 35. This attachment zone is fragile and there is a risk of breakage of clamps 40 in this area.

Le capot 35 peut être ouvert en regard de la pince 40 afin de faciliter la réalisation du capot 35 par exemple par moulage.The cover 35 can be open facing the clamp 40 in order to facilitate the production of the cover 35, for example by molding.

Les figures 6, 7 et 8 représentent plusieurs phases dans la mise en place d'une pince 40. Sur la figure 6, le capot 35 est à distance de la paroi 37. Dans une première phase de l'assemblage, on rapproche le capot 35 dans une direction horizontale x jusqu'à ce que les faces 36 et 41 viennent au contact l'une de l'autre comme représenté sur la figure 7. La pince 40 pénètre dans l'ouverture 43. Il est nécessaire que dans une direction verticale portée par l'axe z les dimensions de l'ouverture 43 soient supérieures à celles de la pince 40 pour que la pince 40 puisse entrer librement dans l'ouverture 43. Dans une seconde phase de l'assemblage, on déplace le capot 34 le long de la paroi 37. Le sens du déplacement du capot 35 est -z sur les figures 7 et 8. La position finale à l'issu de cette deuxième phase est représentée sur la figure 8 et correspond à la figure 5. A l'issu de la première phase, l'extrémité libre 44 de la pince 40 est située au dessus du bord 47 et durant la deuxième phase, l'extrémité libre 44 passe en dessous du bord 47 en glissant le long de la face 42 de la paroi 37. Durant cette deuxième phase, les faces 36 et 41 restent au contact l'une de l'autre.The Figures 6, 7 and 8 represent several phases in the installation of a clamp 40. On the figure 6 , the cover 35 is at a distance from the wall 37. In a first phase of the assembly, the cover 35 is brought closer in a horizontal direction x until the faces 36 and 41 come into contact with one of the other as depicted on the figure 7 . The clamp 40 enters the opening 43. It is necessary that in a vertical direction carried by the axis z the dimensions of the opening 43 are greater than those of the clamp 40 so that the clamp 40 can freely enter the opening 43. In a second phase of the assembly, the cover 34 is moved along the wall 37. The direction of movement of the cover 35 is -z on the Figures 7 and 8 . The final position at the end of this second phase is represented on the figure 8 and corresponds to the figure 5 . At the end of the first phase, the free end 44 of the clamp 40 is located above the edge 47 and during the second phase, the free end 44 passes below the edge 47 by sliding along the face 42 of the wall 37. During this second phase, the faces 36 and 41 remain in contact with each other. 'other.

Le dispositif d'assemblage comporte des moyens pour imposer la pénétration simultanée de toutes les pinces 40 dans les ouvertures 43 correspondantes. Si une des pinces 40 seulement rentre dans son ouverture 43, on risque sa rupture. Un mode de réalisation de ces moyens est représenté aux figures 9 à 13. Ces moyens comprennent par exemple :

  • un guide 50 appartenant à l'évaporateur 13 permettant de poser le capot 35 de telle sorte que les pinces 40 soient en regard des ouvertures 43 correspondantes,
  • une lumière 51 appartenant à l'évaporateur 13,
  • un doigt 52 appartenant au capot 35 réalisé de telle sorte que le doigt 52 ne peut pénétrer dans la lumière 51 que lorsque la face 36 du capot 35 destinée à prendre appui contre la face 41 de l'évaporateur 13 est parallèle à la face 41 de l'évaporateur 13.
The assembly device comprises means for imposing the simultaneous penetration of all the clamps 40 in the corresponding openings 43. If only one of the clamps 40 enters its opening 43, it is likely to break. One embodiment of these means is shown in Figures 9 to 13 . These means include for example:
  • a guide 50 belonging to the evaporator 13 making it possible to place the cap 35 in such a way that the clips 40 are opposite corresponding openings 43,
  • a light 51 belonging to the evaporator 13,
  • a finger 52 belonging to the cover 35 made in such a way that the finger 52 can penetrate the light 51 only when the face 36 of the cover 35 intended to bear against the face 41 of the evaporator 13 is parallel to the face 41 of the evaporator 13.

Les figures 9 à 13 représentent plusieurs phases dans la mise en place du capot 35 sur l'évaporateur 13. Sur ces figures, un seul ensemble comprenant un guide 50, une lumière 51 et un doigt 52 est représenté. Il est bien entendu possible de prévoir plusieurs ensembles, par exemple deux, un de chaque coté du ventilateur 15 comme représenté sur la figure 4.The Figures 9 to 13 represent several phases in the introduction of the cover 35 on the evaporator 13. In these figures, a single assembly comprising a guide 50, a light 51 and a finger 52 is shown. It is of course possible to provide several sets, for example two, one on each side of the fan 15 as shown in FIG. figure 4 .

Sur la figure 9, le capot 35 est à distance de la paroi 37 de l'évaporateur 13. Le capot 35 repose dans sa partie basse 56 sur le guide 50. Les deux faces 36 et 41 ne sont pas parallèles. Lorsque le capot 35 se déplace le long du guide 50, le mouvement du capot 35 se fait en suivant l'axe x jusqu'à atteindre la position représentée sur la figure 10. La lumière 51 s'ouvre dans la paroi 37 et dans cette position, le doigt 52 bute contre la paroi 37. Le doigt 52 ne peut pénétrer dans la lumière 51 que lorsque la capot 35 se redresse jusqu'à ce que les faces 36 et 41 deviennent parallèles comme représenté sur la figure 11. La longueur du doigt 52 dans la direction x est déterminée pour que, lorsqu'il bute contre la paroi 37, les pinces 40 restent à distance de la paroi 37 sans pouvoir pénétrer dans les ouvertures 43 correspondantes. La pénétration du doigt 52 dans la lumière 51 autorise le rapprochement des deux faces 36 et 41 jusqu'à ce que les pinces 40 pénètrent dans leurs ouvertures 43 respectives comme représenté sur la figure 12. Cette position des pinces 40 par rapport aux ouvertures 43 correspond celle décrite à la figure 7.On the figure 9 , the cover 35 is remote from the wall 37 of the evaporator 13. The cover 35 rests in its lower part 56 on the guide 50. The two faces 36 and 41 are not parallel. When the cover 35 moves along the guide 50, the movement of the cover 35 is made along the x axis until reaching the position represented on the figure 10 . The light 51 opens into the wall 37 and in this position, the finger 52 abuts against the wall 37. The finger 52 can penetrate into the light 51 only when the cover 35 recovers until the faces 36 and 41 become parallel as shown on the figure 11 . The length of the finger 52 in the x direction is determined so that, when it abuts against the wall 37, the clamps 40 remain at a distance from the wall 37 without being able to penetrate into the corresponding openings 43. The penetration of the finger 52 into the lumen 51 allows the two faces 36 and 41 to be brought together until the clips 40 penetrate into their respective apertures 43 as shown on the figure 12 . This position of the clamps 40 with respect to the openings 43 corresponds to that described in FIG. figure 7 .

Avantageusement, l'évaporateur 13 comprend une rainure 55 permettant au capot 35 d'échapper au guide 50, lorsque les pinces 40 ont toutes pénétré dans leurs ouvertures 43 correspondantes. La rainure 55 sert également de guide dans le mouvement du capot 35 selon l'axe z le long de la paroi 37. La rainure 55 s'étend selon l'axe z perpendiculairement au guide 50. Une partie basse 56 du capot 35 descend dans la rainure 55 lors du mouvement du capot 35 selon l'axe z pour pincer la paroi 37 et atteindre la position représentée sur la figure 13. La hauteur de la lumière 51 permet que le doigt 52 se déplace dans la lumière 51 lors du mouvement de descente du capot 35.Advantageously, the evaporator 13 comprises a groove 55 allowing the cover 35 to escape the guide 50, when the clamps 40 have all penetrated into their corresponding openings 43. The groove 55 also serves as a guide in the movement of the cover 35 along the axis z along the wall 37. The groove 55 extends along the axis z perpendicular to the guide 50. A lower portion 56 of the cover 35 descends in the groove 55 during the movement of the cover 35 along the axis z to clamp the wall 37 and reach the position shown on the figure 13 . The height of the light 51 allows the finger 52 to move in the light 51 during the downward movement of the cover 35.

La longueur du doigt 52 est également définie de façon à ce que la partie basse 56 ne puisse s'engager dans la rainure 55 tant que le doigt 52 n'a pas pénétré dans la lumière 51.The length of the finger 52 is also defined so that the lower part 56 can not engage in the groove 55 until the finger 52 has penetrated the light 51.

La position de la rainure 55 permet également d'éviter lors d'une inclinaison du capot 35, inverse de celle représentée sur la figure 10, un mouvement du capot 35 dans un sens -z. En effet, dans le cas d'une inclinaison inverse, les pinces 40 situées au haut du capot 35 pourrait avoir pénétré dans leurs ouvertures 43 respective alors que les pinces situées en bas du capot 35 seraient en dehors de leurs ouvertures 43.The position of the groove 55 also makes it possible to avoid, when the hood 35 is tilted, the opposite of that represented on the figure 10 , a movement of the hood 35 in a direction -z. Indeed, in the case of a reverse inclination, the clamps 40 located at the top of the cover 35 could have penetrated into their respective openings 43 while the clamps located at the bottom of the cover 35 would be outside their openings 43.

La rainure 55 contribue également à maintenir le capot 35 en pression contre la paroi 37. Plus précisément, un bord 57 de la rainure 55 appuie contre la partie basse 56 lorsque la partie basse 56 s'engage dans la rainure 55 dans son mouvement de translation selon l'axe z. A cet effet, on peut prévoir un jeu négatif de quelques dixièmes de millimètres entre le bord 57 et la partie basse 56 du capot 35 lorsque la face 36 du capot 35 est en contact contre la face 41 de l'échangeur dans la position de la figure 12. Le jeu négatif est défini dans la direction x et assure la mise en pression des deux faces 36 et 41 l'une contre l'autre lorsque le capot 35 passe de la position de la figure 12 à celle de la figure 13.The groove 55 also contributes to maintaining the hood 35 under pressure against the wall 37. More specifically, an edge 57 of the groove 55 bears against the lower part 56 when the lower part 56 engages in the groove 55 in its translational movement. along the z axis. For this purpose, it is possible to provide a negative clearance of a few tenths of millimeters between the edge 57 and the lower part 56 of the cover 35 when the face 36 of the cover 35 is in contact with the face 41 of the exchanger in the position of the figure 12 . The negative clearance is defined in the direction x and ensures the pressurization of the two faces 36 and 41 against each other when the cover 35 passes from the position of the figure 12 to that of the figure 13 .

Avantageusement, le capot 35 comporte une butée 60 permettant de prendre appui contre l'évaporateur 13 lors d'un mouvement de translation du capot 35 par rapport à l'évaporateur 13 le long de la paroi 37, mouvement permettant l'assemblage du ventilateur 15, la butée 60 étant distincte des pinces 40.Advantageously, the cover 35 comprises a stop 60 making it possible to bear against the evaporator 13 during a translational movement the cover 35 with respect to the evaporator 13 along the wall 37, movement allowing the assembly of the fan 15, the stop 60 being distinct from the clamps 40.

La butée 60 est par exemple située en partie haute du capot 35. La butée 60 vient au contact de l'évaporateur 13 lorsque les pinces 40 sont engagées derrière la paroi 37. La butée 60 permet aux pinces 40 de ne pas venir au contact des bords 47 correspondants. L'évaporateur 13 à principalement une forme parallélépipédique, la paroi 37 formant une face verticale du parallélépipède. La butée peut recouvrir la totalité d'une face supérieure horizontale du parallélépipède afin d'assurer l'étanchéité du flux d'air entrainé par le ventilateur 15 en partie haute de celui-ci.The stop 60 is for example located in the upper part of the cover 35. The stop 60 comes into contact with the evaporator 13 when the clamps 40 are engaged behind the wall 37. The stop 60 allows the clamps 40 not to come into contact with the corresponding edges 47. The evaporator 13 has a mainly parallelepipedal shape, the wall 37 forming a vertical face of the parallelepiped. The stop may cover the whole of a horizontal upper face of the parallelepiped in order to seal the air flow entrained by the fan 15 in the upper part thereof.

Avantageusement, le dispositif comprend des moyens de verrouillage de l'échangeur 13 et du capot 35 l'un par rapport à l'autre. Ces moyens comprennent par exemple deux vis 65 et 66 permettant au capot 35 d'être fixé sur l'évaporateur 13. Les deux vis 65 et 66 sont par exemple disposées entre deux pinces 40 voisines. On peut prévoir pour chaque vis, 65 et 66 un trou lisse réalisé dans le capot 35 et un trou taraudé réalisé dans la paroi 37. Ces deux trous ne sont alignés, pour permettre la mise en place des vis 65 et 66, que lorsque la position de la figure 13 est atteinte. Les vis 65 et 66 contribuent également à maintenir le capot 35 en pression contre la paroi 37.Advantageously, the device comprises means for locking the exchanger 13 and the cover 35 relative to each other. These means comprise for example two screws 65 and 66 allowing the cover 35 to be fixed on the evaporator 13. The two screws 65 and 66 are for example arranged between two adjacent clamps 40. For each screw, 65 and 66 can be provided a smooth hole made in the cover 35 and a tapped hole made in the wall 37. These two holes are aligned, to allow the introduction of the screws 65 and 66, only when the position of the figure 13 is reached. The screws 65 and 66 also contribute to keeping the hood 35 under pressure against the wall 37.

Plusieurs éléments distincts contribuent à maintenir le capot 35 en pression contre la paroi 37 : les pinces 40, la rainure 55, au moyen de son bord 57, et les vis 65 et 66. Ces différents éléments peuvent être répartis régulièrement le long de l'axe z en fonction de la rigidité de l'échangeur 13 et du capot 35 au niveau de leur zone de contact pour assurer une bonne étanchéité aéraulique au niveau de ce contact.Several distinct elements contribute to maintaining the hood 35 under pressure against the wall 37: the clamps 40, the groove 55, by means of its edge 57, and the screws 65 and 66. These various elements can be regularly distributed along the z axis depending on the stiffness of the exchanger 13 and the cover 35 at their contact area to ensure a good airtightness at this contact.

Claims (10)

  1. Device for assembling a fan (15) for a refrigeration unit, comprising:
    • a cover (35) which supports the fan (15),
    • an exchanger (13) which comprises a wall (37), the cover (35) and the wall (37) forming two elements of the device, the first element (35) being in abutment against a first face (41) of the second element (13),
    • a plurality of clips (40) which belong to the first element (35) and which are in abutment against a second face (42) of the second element (13), the second face (42) being opposite the first face (41), each clip (40) producing a localised pressure of one element against the other,
    characterised in that the wall (37) is planar and in that the clips (40) have a shape which enables the fan (15) to be assembled by means of a translation movement of the cover (35) relative to the exchanger (13) along the plane of the wall (37).
  2. Device according to claim 1, characterised in that the cover (35) guides a flow of air which is driven by the fan (15) and which passes through the exchanger (13).
  3. Device according to either of the preceding claims, characterised in that the cover (35) comprises a stop (60) which enables abutment against the exchanger (13) during the translation movement of the cover (35) relative to the exchanger (13), the stop (60) being separate from the clips (40).
  4. Device according to any one of the preceding clams, characterised in that there corresponds to each clip (40) an opening (43) of the second element (13) which enables the clip (40) to access the second face (42) of the second element (13).
  5. Device according to claim 4, characterised in that the clip (40) is in the form of a hook, a free end (44) of which comprises a bulge (45) which extends in the direction of the second face (42) of the second element (13) and which enables pressure of the first element (35) to be produced against the first face (41) of the second element (13).
  6. Device according to either claim 4 or claim 5, characterised in that it comprises means for imposing the simultaneous penetration of all of the clips (40) in the corresponding openings (43).
  7. Device according to claim 6, characterised in that the means for imposing the simultaneous introduction of all the clips (40) in the corresponding openings (43) comprise:
    • a guide (50) which belongs to the exchanger (13) which enables the cover (35) to be placed in such a manner that the clips (40) face the corresponding openings (43),
    • an aperture (51) which belongs to the exchanger (13),
    • a finger (52) which belongs to the cover (35) and which is produced in such a manner that the finger (52) can be introduced into the aperture (51) only when a face (36) of the first element (35) which is intended to be in abutment against the first face (41) of the second element (13) is parallel with the first face (41) of the second element (13).
  8. Device according to claim 7, characterised in that the exchanger (13) comprises a groove (55) which enables the cover (35) to be released from the guide (50) when the clips (40) have all been introduced into their corresponding openings (43).
  9. Device according to any one of the preceding claims, characterised in that it comprises means (65, 66) for locking the two elements (13, 35) relative to each other.
  10. Device according to any one of the preceding claims, characterised in that the clips (40) are distributed in accordance with the rigidity of the two elements (13, 35) in contact in order to ensure the air-tightness of a flow of air driven by the fan (15) through the exchanger (13).
EP09772572.5A 2008-07-04 2009-07-06 Assembly device for a refrigeration unit fan Active EP2315996B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SI200931897T SI2315996T1 (en) 2008-07-04 2009-07-06 Assembly device for a refrigeration unit fan

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0803814A FR2933487B1 (en) 2008-07-04 2008-07-04 DEVICE FOR ASSEMBLING A FAN FOR A REFRIGERATION UNIT
PCT/EP2009/058532 WO2010000872A1 (en) 2008-07-04 2009-07-06 Assembly device for a refrigeration unit fan

Publications (2)

Publication Number Publication Date
EP2315996A1 EP2315996A1 (en) 2011-05-04
EP2315996B1 true EP2315996B1 (en) 2018-09-12

Family

ID=40468714

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09772572.5A Active EP2315996B1 (en) 2008-07-04 2009-07-06 Assembly device for a refrigeration unit fan

Country Status (5)

Country Link
EP (1) EP2315996B1 (en)
ES (1) ES2700860T3 (en)
FR (1) FR2933487B1 (en)
SI (1) SI2315996T1 (en)
WO (1) WO2010000872A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6081068B2 (en) * 2012-03-12 2017-02-15 三菱重工業株式会社 Air conditioner

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4742691A (en) * 1986-06-02 1988-05-10 White Consolidated Industries, Inc. Dehumidifier
DE19526286A1 (en) * 1995-07-19 1997-01-23 Behr Gmbh & Co Heat exchanger
AU1186997A (en) * 1996-12-11 1998-07-03 Springer Carrier S/A Fan and motor assembly for an air conditioner
JP3896268B2 (en) * 2001-10-16 2007-03-22 ホシザキ電機株式会社 Heat exchanger
JP4062028B2 (en) * 2002-09-19 2008-03-19 株式会社デンソー Assembly structure of heat exchanger and shroud

Non-Patent Citations (1)

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

Also Published As

Publication number Publication date
WO2010000872A1 (en) 2010-01-07
FR2933487A1 (en) 2010-01-08
SI2315996T1 (en) 2019-02-28
ES2700860T3 (en) 2019-02-19
FR2933487B1 (en) 2010-11-05
EP2315996A1 (en) 2011-05-04

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