EP3759407A1 - Cooling apparatus comprising a securing element for securing tubes or wires or the like - Google Patents

Cooling apparatus comprising a securing element for securing tubes or wires or the like

Info

Publication number
EP3759407A1
EP3759407A1 EP18708400.9A EP18708400A EP3759407A1 EP 3759407 A1 EP3759407 A1 EP 3759407A1 EP 18708400 A EP18708400 A EP 18708400A EP 3759407 A1 EP3759407 A1 EP 3759407A1
Authority
EP
European Patent Office
Prior art keywords
tubes
securing element
wires
seat
cooling apparatus
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP18708400.9A
Other languages
German (de)
French (fr)
Other versions
EP3759407B1 (en
Inventor
Rafael LEIDENS
Antonio VOLTARELLI
Israel MERCER NETO
Stefano Conte
Alcione COLECHA
Guilherme PICANCO
Sergio Grotto
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.)
Electrolux AB
Original Assignee
Electrolux AB
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 Electrolux AB filed Critical Electrolux AB
Publication of EP3759407A1 publication Critical patent/EP3759407A1/en
Application granted granted Critical
Publication of EP3759407B1 publication Critical patent/EP3759407B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • 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
    • F25D2400/00—General features of, or devices for refrigerators, cold rooms, ice-boxes, or for cooling or freezing apparatus not covered by any other subclass
    • F25D2400/04—Refrigerators with a horizontal mullion
    • 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
    • F25D2400/00—General features of, or devices for refrigerators, cold rooms, ice-boxes, or for cooling or freezing apparatus not covered by any other subclass
    • F25D2400/40—Refrigerating devices characterised by electrical wiring

Definitions

  • the present invention generally relates to cooling apparatuses, particularly for food and beverage storage, such as refrigerators and/or freezers for domestic use. More specifically, the present invention relates to a securing element for securing tubes and/or wires in a cooling apparatus.
  • Apparatuses for cooling foods and beverages generally comprise a cabinet, or outer casing, which encloses partition walls defining various compartments.
  • One of said compartments is typically a storage compartment for the storage of products to be kept cool, like for example vegetables, fruit, dairy products, meat, beverages in bottles or cans, etc.
  • the storage compartment is preferably open frontally, or at the top, and a door enables access to the interior of the compartment.
  • the storage compartment preferably comprises a refrigerator compartment capable of keeping the products stored therein at a cooling temperature typically comprised between l°C and l0°C, and/or a freezer compartment capable of keeping the products stored therein at a freezing temperature typically comprised between -16 °C and -28 °C.
  • the cooling apparatus typically houses, at least partially, a cooling system operable to keep cold the interior of the storage compartment/s.
  • the cooling system typically comprises a compressor, a condenser, a lamination valve, and evaporators preferably associated to the storage compartment/s.
  • the evaporators preferably comprise tubes, so as to form a closed hydraulic circuit inside which a refrigerant flows, and preferably comprise tubes made of a material having good thermal conductivity.
  • the tubes are opportunely shaped to interact with the respective storage compartment to cool or freeze the same.
  • the tubes extend from a compartment, for example from the machine chamber, to an adjacent compartment through an aperture defined in the partition wall which delimits the compartments.
  • Other components that extend through the compartments may comprise electrical wires, for example electrical wires that supply voltage to the compressor or a lamp inside the compartment, or electrical wires for electrical components to be powered, for example a control unit, a thermostat, etc.
  • said components preferably extend through the same aperture defined in the partition wall where the tubes are arranged.
  • the space outside the storage compartment/s and the machine chamber is preferably filled with an insulating material, for example a polyurethane foam, which enhances thermal insulation of the storage compartment/s.
  • the insulating material is typically injected after the components, such as the tubes forming the evaporators or the electrical wires, have been arranged at their desired position, and in particular arranged in the aperture formed in the partition walls.
  • the apparatuses according to the known art require that tubes and/or wires are firmly secured to the aperture formed in the partition walls.
  • the apparatuses according to the known art require that the seats in the partition walls receiving said tubes and/or wires are hermetic, to ensure good insulation between adjacent compartments, in particular when one of the compartments is filled with insulation material.
  • a main object of the present invention is therefore to provide a securing element for securing tubes and/or wires to partition walls in cooling apparatuses.
  • Applicant has found that by providing a cooling apparatus comprising at least one partition wall to define two or more adjacent compartments, and by providing a securing element for securing one or more tubes and/or wires to a seat of the partition wall, wherein the securing element comprises two portions reciprocally movable one to the other to define at least one accommodating receptacle, and a sealing element arranged in said at least one accommodating receptacle around said one or more tubes and/or wires, it is possible to reach the mentioned objects.
  • the present invention relates, therefore, to a cooling apparatus comprising:
  • securing element for securing said one or more tubes and/or wires to said seat; wherein said securing element comprises:
  • the first portion and the second portion are reciprocally movable around a hinge portion.
  • the securing element is formed as a one-piece monolithic body.
  • the sealing element is a layer of an elastic material, for example a layer of foam rubber, an open cells polyurethane foam, having preferably a density of around 21 kg/m3, a closed cells expanded polyethylene.
  • the layer of elastic material wraps said tubes and/or wires.
  • the connecting device comprises at least a slot apt to receive an edge of the seat.
  • the slot extends longitudinally in an outer surface of the first portion and/or in an outer surface of the second portion.
  • the connecting device comprises a snap fit connection.
  • the cooling apparatus further comprises a blocking device apt to maintain the first portion and the second portion in the closed position.
  • the cooling apparatus further comprises a closing device apt to securely close said at least one accommodating receptacle.
  • the closing device comprises a cover swingably arranged with respect to the first portion or the second portion.
  • the securing element comprises a plurality of accommodating receptacles at least partially separated one to the other and apt to receive one or more of said tubes and/or wires separately.
  • the partition wall divides a storage compartment for the storage of products to be cooled from a compartment apt to receive a cooling system operable to keep cold the interior of said storage compartment.
  • the invention relates to a method for securing one or more tubes and/or wires into a seat of a partition wall that defines two or more adjacent compartments of a cooling apparatus, said method comprising the steps of:
  • securing element for securing said one or more tubes and/or wires to said seat, said securing element comprising a plurality of accommodating receptacles at least partially separated one to the other and apt to receive said one or more tubes and/or wires;
  • the method comprises the steps of:
  • the method comprises the steps of:
  • the method comprises the steps of:
  • the method further comprises the step of closing said third accommodating receptacle through the closure of a cover element.
  • FIG. 1 shows a perspective view of a cooling apparatus according to a preferred embodiment of the present invention
  • FIG. 2 shows a perspective rear view of the cooling apparatus of Figure 1 with the back panel removed therefrom;
  • FIG. 3 shows a detail of the cooling apparatus of Figure 2, and in particular a securing element according to a preferred embodiment of the invention, with tubes/wires received therein and in its closed position;
  • - Figure 4 shows the detail of Figure 3 from another point of view;
  • FIG. 5 shows a detail of the cooling apparatuses of Figure 2;
  • FIG. 6 shows a perspective view of the securing element of Figure 5 with tubes/wires removed therefrom;
  • FIG. 7 shows an exploded perspective view of the securing element of Figure
  • FIG. 8 shows the securing element of Figure 7 from another point of view
  • FIG. 9 shows a perspective view of a securing element according to a further preferred embodiment of the invention with tubes/wires removed therefrom and in its closed position;
  • FIG. 10 shows the securing element of Figure 9 from another point of view
  • FIG. 11 shows the securing element of Figure 9 in a first opened position
  • FIG. 12 shows the securing element of Figure 11 from another point of view
  • FIG. 13 shows the securing element of Figure 12 in an intermediate opened position
  • FIG. 14 shows the securing element of Figure 9 during installation in a cooling apparatus
  • FIG. 15 shows the securing element of Figure 9 completely installed in a cooling apparatus
  • FIG. 16 shows a further use of the securing element of Figure 9 in a cooling apparatus
  • FIG. 17 shows a perspective view of a securing element according to a further preferred embodiment of the invention with tubes/wires removed therefrom and in its closed position;
  • FIG. 19 shows the securing element of Figure 17 in a first opened position
  • FIG. 20 shows the securing element of Figure 19 from another point of view
  • FIG. 21 shows a detail of the securing element of Figure 17 installed in a cooling apparatus
  • Figure 22 shows the detail of Figure 21 from another point of view.
  • the present invention has proved to be particularly advantageous when applied to a free-standing cooling apparatus for domestic use, as described below. It should in any case be underlined that the present invention is not limited to this type of application. On the contrary, the present invention can be conveniently applied to other type of cooling apparatus, like for example a cooling apparatus of built-in type, or cooling apparatus for professional use.
  • a cooling apparatus 1 according to a preferred embodiment of the invention is described with reference to Figures 1 to 8.
  • the cooling apparatus 1 illustrated and described herein is preferably a free standing cooling apparatus 1.
  • the cooling apparatus 1 preferably comprises an outer casing 6 which preferably comprises two storage compartments 20, 26, more preferably a refrigerator compartment 20 and a freezer compartment 26.
  • the cooling apparatus 1 here illustrated and described thus refers to a combined solution in which the refrigerator compartment 20 is preferably positioned above the freezer compartment 26.
  • the cooling apparatus may preferably comprise a different number and/or combination of refrigerator and/or freezer compartments, possibly even only one refrigerator or freezer compartment.
  • the refrigerator compartment 20, as known, is preferably capable of keeping the products stored therein at a cooling temperature typically comprised between l°C and l0°C.
  • the freezer compartment 26, as known in the art, is preferably capable of keeping the products stored therein at a freezing temperature typically comprised between -16 °C and -28 °C.
  • Refrigerator compartment 20 and freezer compartment 26 are preferably provided with support shelves and/or drawers.
  • the refrigerator compartment 20 preferably comprises an inner casing defined by respective partition walls 22 and with a respective frontal opening 24.
  • the freezer compartment 26 preferably comprises an inner casing defined by respective partition walls 28 and with a respective frontal opening 30.
  • the inner casings 22, 28 are preferably made of a polymeric plastic material, such as PS (polystyrene).
  • the two inner casings 22, 28 are two separate elements placed one above the other.
  • the two inner casings may be formed as a one-piece monolithic body.
  • the outer casing 6 preferably comprises side walls enclosing the inner casings 22, 28.
  • the outer casing 6 preferably has a parallelepiped shape and comprises lateral panels 8, 10, a top panel 12, a bottom shaped panel 14 and a back panel 16.
  • All the panels 8, 10, 12, 14, 16 may for example be made of metal sheet or plastic.
  • side walls of the outer casing 6 comprise the lateral panels 8, 10, the top panel 12, the bottom shaped panel 14 and the back panel 16.
  • the cooling apparatus 1 further preferably comprises an upper door 36 associated with the frontal opening 24 of the refrigerator compartment 20 and a lower door 38 associated with the frontal opening 30 of the freezer compartment 26.
  • a single door may be provided for closing both compartments.
  • the cooling apparatus 1 then further preferably comprises a lower partition wall 34, as illustrated in Figure 2) which defines a machine compartment 40, or machine chamber, where a cooling system 42 is placed.
  • the cooling system 42 preferably comprises a compressor 44, a condenser 46, a pressure lowering device, e.g. a lamination valve (not shown), and two evaporators 48a, 48b (partially indicated in Figure 2).
  • the two evaporators 48a, 48b are preferably associated respectively to the inner casing 22 of the refrigerator compartment 20 and inner casing 28 of the freezer compartment 26, and then back to the compressor 44 through a common portion 50.
  • the evaporators 48a, 48b and the common back portion 50 preferably comprise tubes so as to form a closed hydraulic circuit inside which a refrigerant flows.
  • the evaporators 48a, 48b and the back portion 50 preferably comprise tubes made of a material having good thermal conductivity (such as aluminium or copper).
  • the tubes are opportunely shaped to interact with the respective inner casings 22, 28 to cool or freeze the refrigerator or freezer compartment 20, 26.
  • the tube forming the evaporators 48a, 48b externally wraps the inner casings 22, 28 defining the compartments 20, 26.
  • the evaporator or evaporators may be associated with the respective compartment in a different way, for example, partially or totally housed inside the compartment.
  • Electrical wires 17 are also preferably associated to the cooling system 42. Preferably electrical wires 17 supply voltage to the compressor 44.
  • an intermediate compartment 54, or interspace is defined.
  • the interspace 54 is preferably filled with an insulating material, not visible in the figures, for example a polyurethane foam, which enhances thermal insulation of the storage compartments 20, 26.
  • Tubes 48a, 48b, 50 and electrical wires 17 preferably extend from the device chamber 40 to the adjacent intermediate compartment 54 through a seat 60 formed in the lower partition wall 34.
  • the seat 60 is preferably defined by an aperture of the partition wall 34 and preferably comprises a one-side open rectangular shape with opposite edges 62a, 62b.
  • tubes 48a, 48b, 50 and electrical wires 17 are firmly secured to the seat 60 formed in the lower partition wall 34.
  • a securing element 70 is used for securing tubes 48a, 48b, 50 and electrical wires 17 to the seat 60.
  • the securing element 70 is configured to have a first opened position, as illustrated for example in Figures 7 and 8, and a closed position, as illustrated for example in Figures 3 to 6.
  • the securing element 70 receives tubes 48a, 48b, 50 and electrical wires 17 and is inserted into the seat 60 of lower partition wall 34.
  • the securing element 70 preferably comprises a first portion 72 and a second portion 74 reciprocally movable from the opened position to the closed position, and vice-versa. In the closed position, the first portion 72 and the second portion 74 creates an accommodating receptacle 82. Tubes 48a, 48b, 50 and electrical wires 17 are advantageously received in the accommodating receptacle 82.
  • the first portion 72 and the second portion 74 reciprocally move around a common hinge portion 76.
  • First portion 72, second portion 74 and the hinge portion 76 are preferably formed as a one-piece monolithic body, more preferably formed by means of injection moulding of a plastic material.
  • the second portion 74 preferably comprises two protuberances 78a, 78b (see Figure 7) preferably matching two corresponding protrusions 80a, 80b of the first portion 72 when the securing element 70 is in its closed position.
  • the two protuberances 78a, 78b preferably defines, therefore, the width of the accommodating receptacle 82.
  • the securing element 70 further comprises a sealing element 90 arranged in the accommodating receptacle 82 around tubes 48a, 48b, 50 and electrical wires 17 received therein.
  • the sealing element 90 advantageously ensures good insulation between the device chamber 40 and the intermediate compartment 54. More preferably, the sealing element 90 advantageously ensures good insulation between the device chamber 40 and the intermediate compartment 54 when the latest is filled with insulation material. The sealing element 90 avoids that insulating material reaches the device chamber 40 during manufacturing of the apparatus 1 when the insulating material is injected into the intermediate compartment 54.
  • the sealing element 90 preferably comprises a layer of elastic material, preferably a layer of foam rubber, which lies over the first portion 72 and the second portion 74.
  • the layer advantageously wraps said tubes 48a, 48b, 50 and electrical wires 17.
  • the sealing element 90 preferably comprises a layer of elastic material for example a layer of foam rubber, an open cells polyurethane foam, having preferably a density of around 21 kg/m3, a closed cells expanded polyethylene.
  • the securing element 70 preferably comprises a connecting device 92.
  • the connecting device 92 preferably comprises a first slot 94 extending longitudinally in an outer surface 72a of the first portion 72 and a second slot 96 extending longitudinally in an outer surface 74a of the second portion 74.
  • the securing element 70 is advantageously connected to the lower partition wall 34 by inserting it into the seat 60.
  • the slots 94, 96 of the securing element 70 receive the respective opposite edges 62a, 62b of the seat 60 while the securing element 70 is inserted into the seat 60 (as illustrated in Figure 4).
  • a securing element 170 according to a further preferred embodiment of the invention is described.
  • corresponding characteristics and/or components of the first embodiment previously described are identified by the same reference numbers.
  • the securing element 170 is advantageously used for securing tubes and/or electrical wires to a partition wall of a cooling apparatus, more preferably for securing tubes and/or electrical wires to a seat in partition wall of a cooling apparatus.
  • the securing element 170 is configured to have a first opened position, as illustrated for example in Figures 11 and 12, and a closed position, as illustrated for example in Figures 9, 10 and 15.
  • the securing element 170 receives tubes 48a, 48b, 50 and electrical wires 17 and is inserted into a seat 60 of a partition wall 34, as illustrated in Figure 15.
  • the securing element 170 preferably comprises a first portion 172 and a second portion 174 reciprocally movable from the opened position to the closed position, and vice-versa. In the closed position, the first portion 172 and the second portion 174 creates two accommodating receptacles 182a and 182b therebetween. Tubes 48a, 48b, 50 and electrical wires 17 are advantageously received in the accommodating receptacles 182a and 182b.
  • the first portion 172 move with respect to the second portion 174 around a hinge 176.
  • the first portion 172 and the second portion 174 are preferably formed as two separated body.
  • the first portion 172 preferably comprises two protuberances 178a, 178b (see Figure 11) abutting against respective surfaces 180a, 180b of the second portion 174 when the securing element 170 is in its closed position.
  • the two protuberances 178a, 178b preferably define the width of the accommodating receptacles 182a, 182b.
  • the securing element 170 preferably comprises a blocking device 120 apt to maintain the securing element 170 in its closed position.
  • the blocking device 120 is apt to maintain the first portion 172 and the second portion 174 in the closed position.
  • the blocking device 120 preferably comprises a hook closing system.
  • the hook closing system comprises a couple of hooks 121a, 121b at the first portion 172, and a couple of hooks 122a, 122b at the second portion 174.
  • Hooks 121a, 121b, 122a, 122b also preferably separates the accommodating receptacles l82a, l82b one to the other.
  • the securing element 170 preferably further comprises a closing device 140 apt to securely close one of the accommodating receptacle l82a.
  • the closing device 140 preferably comprises a cover element 142 swingably arranged with respect to the first portion 172 or the second portion 174 (the first portion 172 in the preferred embodiment here illustrated).
  • the cover element 142 move with respect to the first portion 172 around a hinge 144.
  • Hooks 146 at the cover element 142 engage seats 148 at the second portion 174, when the cover element 142 is brought in its closed position, to prevent accidental aperture of the same.
  • the cover element 142 allows insertion of one or more tube and/or wire 150 in the accommodating receptacle l82a, or extraction of one or more tube and/or wire 150 from the accommodating receptacle l82a, even when the securing element 170 is already arranged in the seat 60.
  • the securing element 170 further comprises a sealing element 190 arranged in the accommodating receptacles l82a, l82b around tubes 150 and electrical wires 17 received therein.
  • the sealing element 190 advantageously ensures good insulation between the device chamber 40 and the intermediate compartment 54. More preferably, the sealing element 190 advantageously ensures good insulation between the device chamber 40 and the intermediate compartment 54 when the latest is filled with insulation material. The sealing element 190 avoids that insulating material reaches the device chamber 40 during manufacturing of the apparatus 1 when the insulating material is injected into the intermediate compartment 54.
  • the sealing element 190 preferably comprises a layer of elastic material, preferably a layer of foam rubber, which lies over the first portion 172 and the second portion 174.
  • the layer advantageously wraps said one or more tube and/or wire 150 and electrical wires 17.
  • the sealing element 190 is preferably of the type above described with reference to first embodiment.
  • the securing element 170 preferably comprises a connecting device 192.
  • the connecting device 192 preferably comprises a first slot 194 extending longitudinally in an outer surface 172a of the first portion 172 and a second slot 196 extending longitudinally in an outer surface 174a of the second portion 174.
  • the securing element 170 is advantageously connected to the partition wall 34 by inserting it into the seat 60.
  • the slots 194, 196 of the securing element 170 receive the respective opposite edges 62a, 62b of the seat 60 while the securing element 170 is inserted into the seat 60.
  • the connecting device 192 further preferably comprises a snap fit connection, preferably comprising hooks 198 at the outer surface 172a of the first portion 172 and at the outer surface 174a of the second portion 174.
  • Hooks 198 prevent disconnection of the securing element from the seat 60.
  • the securing element 170 preferably comprises a further accommodating receptacle 182c apt to receive further tubes and/or wires 148, as illustrated in Figure 15 where a single tube 148 is depicted.
  • the third accommodating receptacle 182c is preferably U-shaped and has therefore an open side.
  • the third accommodating receptacle 182c is preferably monolithically formed at a first end 174b of the second portion 174.
  • a sealing element 190’ is preferably arranged in the third accommodating receptacle 182c for the tubes and/or electrical wires 148 received therein.
  • the U-shaped accommodating receptacle 182c receives at its open side a tubes and/or electrical wires 148 therein, as illustrated in Figures 14 and 15.
  • the rear wall 60a of the seat 60 closes the open side of the third accommodating receptacle 182c and tubes and/or electrical wires 148 are securely maintained therein.
  • the securing element 170 advantageously enhances the mounting operation of the securing element 170 at the seat 60 with tubes and/or electrical wires 148 securely maintained therein.
  • the securing element 170 comprises a plurality of accommodating receptacles l82a, l82b, l82c at least partially separated one to the other and apt to receive one or more tubes and/or wires 17, 148, 150 therein.
  • the securing element 170 allows the securing of tubes and/or wires 17, 148, 150 to the cooling apparatus 1 by separately arranging tubes and/or wires 17, 148, 150 into the plurality of accommodating receptacles l82a, l82b, l82c.
  • electrical wires 17 are firstly arranged in the second accommodating receptacles l82b; namely, the securing element 170 in its open position ( Figure 11) receives the electrical wires 17 (and/or tube(s) or pipe(s)), and then it is closed to wrap the sealing element 190 around the electrical wires 17 (and/or tube(s) or pipe(s)).
  • This step can be performed manually by an operator or automatically by a suitable machine.
  • a tube 148 (or a plurality of tubes or pipes and/or electrical wire(s)) is then preferably arranged in the seat 60 of the partition wall 34, and the securing element 170 with electrical wires 17 (and/or tube(s) or pipe(s)) already received therein, is inserted into the seat 60, as explained above ( Figures 14 and 15).
  • the securing element 170 is totally inserted in the seat 60, the tube 148 is securely maintained therein by the securing element 170.
  • a further tube 150 (or a plurality of tubes and/or electrical wire(s)) can be inserted in the first accommodating receptacle l82a ( Figure 16), and the cover element 142 can be brought in its closed position.
  • a securing element 270 according to a further preferred embodiment of the invention is described.
  • the securing element 270 is advantageously used for securing tubes 48a, 48b and/or electrical wires to a partition wall 34 between adjacent compartments of a cooling apparatus, more preferably for securing tubes and/or electrical wires to a seat 260 in said partition wall 34, as partially illustrated in Figures 21 and 22.
  • the securing element 270 is configured to have a first opened position, as illustrated for example in Figures 19 and 20, and a closed position, as illustrated for example in Figures 17 and 18.
  • the securing element 270 preferably receives one electrical wire or one tube and is inserted into a seat of a partition wall.
  • the securing element 270 preferably comprises a first portion 272 and a second portion 274 reciprocally movable from the opened position to the closed position, and vice-versa. In the closed position, the first portion 272 and the second portion 274 creates an accommodating receptacle 282. Tubes 48a, 48b and/or electrical wires are advantageously received in the accommodating receptacle 282, more preferably just one tube or just one wire.
  • the first portion 272 and the second portion 274 reciprocally move around a common hinge portion 276.
  • First portion 272, second portion 274 and the hinge portion 276 are preferably formed as a one-piece monolithic body, more preferably formed by means of injection moulding of a plastic material.
  • the securing element 270 preferably comprises a blocking device 220 apt to maintain the securing element 270 in its closed position.
  • the blocking device 220 is apt to maintain the first portion 272 and the second portion 274 in the closed position.
  • the blocking device 220 preferably comprises a snap fit connection.
  • the snap fit connection comprises a closed seat 221 at the first portion 272 and a hook 222 at the second portion 274.
  • the hook 222 of the second portion 274 engages the closed seat 221 of the first portion 272, when the securing element 270 is brought in its closed position, to prevent accidental aperture of the same.
  • the securing element 270 further comprises a sealing element 290 arranged in the accommodating receptacle 282 around tubes 48a, 48b and/or electrical wires received therein.
  • the sealing element 290 advantageously ensures good insulation between two adjacent compartments.
  • the sealing element 290 advantageously ensures good insulation between the two adjacent compartments when one of them is filled with insulation material.
  • the sealing element 290 avoids that insulating material reaches a compartment when the insulating material is injected into an adjacent compartment.
  • the sealing element 290 preferably comprises a layer of elastic material, preferably a layer of foam rubber, which lies over the first portion 272 and the second portion 274.
  • the sealing element 290 is preferably of the type above described with previous embodiments.
  • the securing element 270 preferably comprises a connecting device 292.
  • the connecting device 292 preferably comprises a first hook 294, preferably defined in a rib 272a of the first portion 272 and a second hook 296, preferably defined in a recess 274a of the second portion 274.
  • Hooks 296, 298 of the securing element 270 engage respective recesses 260a of the seat 260 when the securing element 270 is inserted therein (as shown in Figures 21 and 22).
  • Hooks 296, 298 prevent disconnection of the securing element 270 from the seat 260.
  • the present invention allows all the set objects to be achieved.
  • it makes it possible to provide a securing element for securing tubes and/or wires to partition walls between compartments in cooling apparatus that ensures good insulation between the same compartments.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)

Abstract

The invention relates a cooling apparatus (1) comprising an outer casing (6) which encloses at least one partition wall (34) to define two or more adjacent compartments (40, 54, 20, 26) and one or more tubes and/or wires (48a, 48b, 50, 17; 148, 150) extending in two adjacent compartments (40, 54, 20, 26) through a seat (60; 260) defined in the partition wall (34). A securing element (70; 170; 270) for securing said one or more tubes and/or wires (48a, 48b, 50, 17; 148, 150) to the seat (60; 260) is provided. The securing element (70; 170; 270) comprises a first portion (72; 172; 272) and a second portion (74; 174; 274) reciprocally movable from an opened position to a closed position to define an accommodating receptacle (82; 182a, 182b, 182c; 282) and a sealing element (90; 190; 290) is arranged in the accommodating receptacle (82; 182a, 182b, 182c; 282).

Description

COOLING APPARATUS COMPRISING A SECURING ELEMENT FOR SECURING TUBES OR WIRES OR THE LIKE
The present invention generally relates to cooling apparatuses, particularly for food and beverage storage, such as refrigerators and/or freezers for domestic use. More specifically, the present invention relates to a securing element for securing tubes and/or wires in a cooling apparatus. BACKGROUND ART
Apparatuses for cooling foods and beverages generally comprise a cabinet, or outer casing, which encloses partition walls defining various compartments.
One of said compartments is typically a storage compartment for the storage of products to be kept cool, like for example vegetables, fruit, dairy products, meat, beverages in bottles or cans, etc. The storage compartment is preferably open frontally, or at the top, and a door enables access to the interior of the compartment.
The storage compartment preferably comprises a refrigerator compartment capable of keeping the products stored therein at a cooling temperature typically comprised between l°C and l0°C, and/or a freezer compartment capable of keeping the products stored therein at a freezing temperature typically comprised between -16 °C and -28 °C.
In another one of said compartments, also indicated as machine chamber, the cooling apparatus typically houses, at least partially, a cooling system operable to keep cold the interior of the storage compartment/s. The cooling system typically comprises a compressor, a condenser, a lamination valve, and evaporators preferably associated to the storage compartment/s.
The evaporators preferably comprise tubes, so as to form a closed hydraulic circuit inside which a refrigerant flows, and preferably comprise tubes made of a material having good thermal conductivity. The tubes are opportunely shaped to interact with the respective storage compartment to cool or freeze the same.
According to the known art, the tubes extend from a compartment, for example from the machine chamber, to an adjacent compartment through an aperture defined in the partition wall which delimits the compartments. Other components that extend through the compartments may comprise electrical wires, for example electrical wires that supply voltage to the compressor or a lamp inside the compartment, or electrical wires for electrical components to be powered, for example a control unit, a thermostat, etc.
Also said components preferably extend through the same aperture defined in the partition wall where the tubes are arranged.
In known apparatus, furthermore, the space outside the storage compartment/s and the machine chamber is preferably filled with an insulating material, for example a polyurethane foam, which enhances thermal insulation of the storage compartment/s. The insulating material is typically injected after the components, such as the tubes forming the evaporators or the electrical wires, have been arranged at their desired position, and in particular arranged in the aperture formed in the partition walls.
The apparatuses according to the known art require that tubes and/or wires are firmly secured to the aperture formed in the partition walls.
Furthermore, the apparatuses according to the known art require that the seats in the partition walls receiving said tubes and/or wires are hermetic, to ensure good insulation between adjacent compartments, in particular when one of the compartments is filled with insulation material.
A main object of the present invention is therefore to provide a securing element for securing tubes and/or wires to partition walls in cooling apparatuses.
It is another object of the invention to provide a securing element for securing tubes and/or wires to partition walls that delimit adjacent compartments in cooling apparatuses that ensures good insulation between the same compartments.
DISCLOSURE OF INVENTION
Applicant has found that by providing a cooling apparatus comprising at least one partition wall to define two or more adjacent compartments, and by providing a securing element for securing one or more tubes and/or wires to a seat of the partition wall, wherein the securing element comprises two portions reciprocally movable one to the other to define at least one accommodating receptacle, and a sealing element arranged in said at least one accommodating receptacle around said one or more tubes and/or wires, it is possible to reach the mentioned objects.
In a first aspect thereof, the present invention relates, therefore, to a cooling apparatus comprising:
- an outer casing which encloses at least one partition wall to define two or more adjacent compartments for said cooling apparatus;
- one or more tubes and/or wires extending in two adjacent compartments through a seat defined in said partition wall;
- a securing element for securing said one or more tubes and/or wires to said seat; wherein said securing element comprises:
- a first portion and a second portion reciprocally movable from an opened position to a closed position, and vice-versa, to define, in said closed position, at least one accommodating receptacle for said one or more tubes and/or wires;
- a connecting device for connecting said securing element, in said closed position, into said seat of said partition wall;
- a sealing element arranged in said at least one accommodating receptacle around said one or more tubes and/or wires received therein.
Preferably, the first portion and the second portion are reciprocally movable around a hinge portion.
According to a preferred embodiment of the invention, the securing element is formed as a one-piece monolithic body.
In a preferred embodiment of the invention, the sealing element is a layer of an elastic material, for example a layer of foam rubber, an open cells polyurethane foam, having preferably a density of around 21 kg/m3, a closed cells expanded polyethylene.
Preferably, the layer of elastic material wraps said tubes and/or wires.
According to a preferred embodiment of the invention, the connecting device comprises at least a slot apt to receive an edge of the seat.
Preferably, the slot extends longitudinally in an outer surface of the first portion and/or in an outer surface of the second portion.
In a preferred embodiment of the invention, the connecting device comprises a snap fit connection.
Preferably, the cooling apparatus further comprises a blocking device apt to maintain the first portion and the second portion in the closed position.
According to a preferred embodiment of the invention, the cooling apparatus further comprises a closing device apt to securely close said at least one accommodating receptacle.
In a preferred embodiment of the invention, the closing device comprises a cover swingably arranged with respect to the first portion or the second portion.
According to a preferred embodiment of the invention, the securing element comprises a plurality of accommodating receptacles at least partially separated one to the other and apt to receive one or more of said tubes and/or wires separately.
Preferably, the partition wall divides a storage compartment for the storage of products to be cooled from a compartment apt to receive a cooling system operable to keep cold the interior of said storage compartment.
In further aspect thereof, the invention relates to a method for securing one or more tubes and/or wires into a seat of a partition wall that defines two or more adjacent compartments of a cooling apparatus, said method comprising the steps of:
- providing a securing element for securing said one or more tubes and/or wires to said seat, said securing element comprising a plurality of accommodating receptacles at least partially separated one to the other and apt to receive said one or more tubes and/or wires;
- securing said one or more tubes and/or wires to said cooling apparatus by separately arranging said one or more tubes and/or wires into one or more of said plurality of accommodating receptacles.
According to an advantageous embodiment of the invention, the method comprises the steps of:
- arranging one or more tubes and/or wires into a first one of said plurality of accommodating receptacles of said securing element before its insertion into said seat;
- arranging one or more tubes and/or wires into said seat before insertion of said securing element into said seat;
- inserting said securing element into said seat for receiving said one or more tubes and/or wires previously arranged into said seat into a second one of said plurality of accommodating receptacles of said securing element.
According to a further advantageous embodiment of the invention, the method comprises the steps of:
- arranging one or more tubes and/or wires into a first one of said plurality of accommodating receptacles of said securing element before its insertion into said seat;
- inserting said securing element into said seat;
- arranging one or more tubes and/or wires into a third one of said plurality of accommodating receptacles of said securing element after its insertion into said seat.
According to a preferred embodiment of the invention, the method comprises the steps of:
- arranging one or more tubes and/or wires into a first one of said plurality of accommodating receptacles of said securing element before its insertion into said seat;
- arranging one or more tubes and/or wires into said seat before insertion of said securing element into said seat;
- inserting said securing element into said seat for receiving said one or more tubes and/or wires previously arranged into said seat into a second one of said plurality of accommodating receptacles of said securing element;
- arranging one or more tubes and/or wires into a third one of said plurality of accommodating receptacles of said securing element after its insertion into said seat.
Preferably, the method further comprises the step of closing said third accommodating receptacle through the closure of a cover element.
BRIEF DESCRIPTION OF THE DRAWINGS
Further characteristics and advantages of the present invention will be highlighted in greater detail in the following detailed description of preferred embodiments of the invention, provided with reference to the enclosed drawings. In the drawings, corresponding characteristics and/or components are identified by the same reference numbers. In such drawings:
- Figure 1 shows a perspective view of a cooling apparatus according to a preferred embodiment of the present invention;
- Figure 2 shows a perspective rear view of the cooling apparatus of Figure 1 with the back panel removed therefrom;
- Figure 3 shows a detail of the cooling apparatus of Figure 2, and in particular a securing element according to a preferred embodiment of the invention, with tubes/wires received therein and in its closed position; - Figure 4 shows the detail of Figure 3 from another point of view;
- Figure 5 shows a detail of the cooling apparatuses of Figure 2;
- Figure 6 shows a perspective view of the securing element of Figure 5 with tubes/wires removed therefrom;
- Figure 7 shows an exploded perspective view of the securing element of Figure
6 in an opened position;
- Figure 8 shows the securing element of Figure 7 from another point of view;
- Figure 9 shows a perspective view of a securing element according to a further preferred embodiment of the invention with tubes/wires removed therefrom and in its closed position;
- Figure 10 shows the securing element of Figure 9 from another point of view;
- Figure 11 shows the securing element of Figure 9 in a first opened position;
- Figure 12 shows the securing element of Figure 11 from another point of view;
- Figure 13 shows the securing element of Figure 12 in an intermediate opened position;
- Figure 14 shows the securing element of Figure 9 during installation in a cooling apparatus;
- Figure 15 shows the securing element of Figure 9 completely installed in a cooling apparatus;
- Figure 16 shows a further use of the securing element of Figure 9 in a cooling apparatus;
- Figure 17 shows a perspective view of a securing element according to a further preferred embodiment of the invention with tubes/wires removed therefrom and in its closed position;
- Figure 18 shows the securing element of Figure 17 from another point of view;
- Figure 19 shows the securing element of Figure 17 in a first opened position;
- Figure 20 shows the securing element of Figure 19 from another point of view;
- Figure 21 shows a detail of the securing element of Figure 17 installed in a cooling apparatus;
- Figure 22 shows the detail of Figure 21 from another point of view.
DETAILED DESCRIPTION OF THE INVENTION
The present invention has proved to be particularly advantageous when applied to a free-standing cooling apparatus for domestic use, as described below. It should in any case be underlined that the present invention is not limited to this type of application. On the contrary, the present invention can be conveniently applied to other type of cooling apparatus, like for example a cooling apparatus of built-in type, or cooling apparatus for professional use.
A cooling apparatus 1 according to a preferred embodiment of the invention is described with reference to Figures 1 to 8.
The cooling apparatus 1 illustrated and described herein is preferably a free standing cooling apparatus 1.
The cooling apparatus 1 preferably comprises an outer casing 6 which preferably comprises two storage compartments 20, 26, more preferably a refrigerator compartment 20 and a freezer compartment 26.
The cooling apparatus 1 here illustrated and described thus refers to a combined solution in which the refrigerator compartment 20 is preferably positioned above the freezer compartment 26.
In different embodiments, not illustrated, the cooling apparatus may preferably comprise a different number and/or combination of refrigerator and/or freezer compartments, possibly even only one refrigerator or freezer compartment.
The refrigerator compartment 20, as known, is preferably capable of keeping the products stored therein at a cooling temperature typically comprised between l°C and l0°C. The freezer compartment 26, as known in the art, is preferably capable of keeping the products stored therein at a freezing temperature typically comprised between -16 °C and -28 °C.
Refrigerator compartment 20 and freezer compartment 26 are preferably provided with support shelves and/or drawers.
The refrigerator compartment 20 preferably comprises an inner casing defined by respective partition walls 22 and with a respective frontal opening 24.
The freezer compartment 26 preferably comprises an inner casing defined by respective partition walls 28 and with a respective frontal opening 30.
The inner casings 22, 28 are preferably made of a polymeric plastic material, such as PS (polystyrene).
In the preferred embodiment illustrated herein, the two inner casings 22, 28 are two separate elements placed one above the other. In different embodiments, not illustrated, the two inner casings may be formed as a one-piece monolithic body. The outer casing 6 preferably comprises side walls enclosing the inner casings 22, 28. The outer casing 6 preferably has a parallelepiped shape and comprises lateral panels 8, 10, a top panel 12, a bottom shaped panel 14 and a back panel 16.
All the panels 8, 10, 12, 14, 16 may for example be made of metal sheet or plastic.
It is underlined that in the example illustrated in attached figures, side walls of the outer casing 6 comprise the lateral panels 8, 10, the top panel 12, the bottom shaped panel 14 and the back panel 16.
The cooling apparatus 1 further preferably comprises an upper door 36 associated with the frontal opening 24 of the refrigerator compartment 20 and a lower door 38 associated with the frontal opening 30 of the freezer compartment 26. In a variant embodiment, a single door may be provided for closing both compartments.
The cooling apparatus 1 then further preferably comprises a lower partition wall 34, as illustrated in Figure 2) which defines a machine compartment 40, or machine chamber, where a cooling system 42 is placed.
The cooling system 42 preferably comprises a compressor 44, a condenser 46, a pressure lowering device, e.g. a lamination valve (not shown), and two evaporators 48a, 48b (partially indicated in Figure 2). The two evaporators 48a, 48b are preferably associated respectively to the inner casing 22 of the refrigerator compartment 20 and inner casing 28 of the freezer compartment 26, and then back to the compressor 44 through a common portion 50.
The evaporators 48a, 48b and the common back portion 50 preferably comprise tubes so as to form a closed hydraulic circuit inside which a refrigerant flows.
The evaporators 48a, 48b and the back portion 50 preferably comprise tubes made of a material having good thermal conductivity (such as aluminium or copper). The tubes are opportunely shaped to interact with the respective inner casings 22, 28 to cool or freeze the refrigerator or freezer compartment 20, 26. Preferably the tube forming the evaporators 48a, 48b externally wraps the inner casings 22, 28 defining the compartments 20, 26.
In further advantageous embodiments, the evaporator or evaporators may be associated with the respective compartment in a different way, for example, partially or totally housed inside the compartment.
Electrical wires 17 are also preferably associated to the cooling system 42. Preferably electrical wires 17 supply voltage to the compressor 44.
Between the lower partition wall 34 and the inner casings 22, 28 an intermediate compartment 54, or interspace, is defined.
The interspace 54 is preferably filled with an insulating material, not visible in the figures, for example a polyurethane foam, which enhances thermal insulation of the storage compartments 20, 26.
Tubes 48a, 48b, 50 and electrical wires 17 preferably extend from the device chamber 40 to the adjacent intermediate compartment 54 through a seat 60 formed in the lower partition wall 34. The seat 60 is preferably defined by an aperture of the partition wall 34 and preferably comprises a one-side open rectangular shape with opposite edges 62a, 62b.
According to a preferred embodiment of the invention, tubes 48a, 48b, 50 and electrical wires 17 are firmly secured to the seat 60 formed in the lower partition wall 34.
To this purpose, a securing element 70 is used for securing tubes 48a, 48b, 50 and electrical wires 17 to the seat 60.
The securing element 70 is configured to have a first opened position, as illustrated for example in Figures 7 and 8, and a closed position, as illustrated for example in Figures 3 to 6.
In the closed position, the securing element 70 receives tubes 48a, 48b, 50 and electrical wires 17 and is inserted into the seat 60 of lower partition wall 34.
The securing element 70 preferably comprises a first portion 72 and a second portion 74 reciprocally movable from the opened position to the closed position, and vice-versa. In the closed position, the first portion 72 and the second portion 74 creates an accommodating receptacle 82. Tubes 48a, 48b, 50 and electrical wires 17 are advantageously received in the accommodating receptacle 82.
The first portion 72 and the second portion 74 reciprocally move around a common hinge portion 76.
First portion 72, second portion 74 and the hinge portion 76 are preferably formed as a one-piece monolithic body, more preferably formed by means of injection moulding of a plastic material.
The second portion 74 preferably comprises two protuberances 78a, 78b (see Figure 7) preferably matching two corresponding protrusions 80a, 80b of the first portion 72 when the securing element 70 is in its closed position.
The two protuberances 78a, 78b preferably defines, therefore, the width of the accommodating receptacle 82.
The securing element 70 further comprises a sealing element 90 arranged in the accommodating receptacle 82 around tubes 48a, 48b, 50 and electrical wires 17 received therein.
When the securing element 70 is in closed position and inserted in the seat 60 of the lower partition wall 34 the sealing element 90 advantageously ensures good insulation between the device chamber 40 and the intermediate compartment 54. More preferably, the sealing element 90 advantageously ensures good insulation between the device chamber 40 and the intermediate compartment 54 when the latest is filled with insulation material. The sealing element 90 avoids that insulating material reaches the device chamber 40 during manufacturing of the apparatus 1 when the insulating material is injected into the intermediate compartment 54.
The sealing element 90 preferably comprises a layer of elastic material, preferably a layer of foam rubber, which lies over the first portion 72 and the second portion 74.
The layer advantageously wraps said tubes 48a, 48b, 50 and electrical wires 17. The sealing element 90 preferably comprises a layer of elastic material for example a layer of foam rubber, an open cells polyurethane foam, having preferably a density of around 21 kg/m3, a closed cells expanded polyethylene.
In order to ensure the connection of the securing element 70 in its closed position into the seat 60 of lower partition wall 34, the securing element 70 preferably comprises a connecting device 92.
In the preferred embodiment here illustrated, the connecting device 92 preferably comprises a first slot 94 extending longitudinally in an outer surface 72a of the first portion 72 and a second slot 96 extending longitudinally in an outer surface 74a of the second portion 74.
The securing element 70 is advantageously connected to the lower partition wall 34 by inserting it into the seat 60. Preferably, the slots 94, 96 of the securing element 70 receive the respective opposite edges 62a, 62b of the seat 60 while the securing element 70 is inserted into the seat 60 (as illustrated in Figure 4). With reference to Figures 9 to 16 a securing element 170 according to a further preferred embodiment of the invention is described. In the drawings, corresponding characteristics and/or components of the first embodiment previously described are identified by the same reference numbers.
The securing element 170, according to an aspect of the invention and analogously to the securing element previously described, is advantageously used for securing tubes and/or electrical wires to a partition wall of a cooling apparatus, more preferably for securing tubes and/or electrical wires to a seat in partition wall of a cooling apparatus.
The securing element 170 is configured to have a first opened position, as illustrated for example in Figures 11 and 12, and a closed position, as illustrated for example in Figures 9, 10 and 15.
In the closed position, the securing element 170 receives tubes 48a, 48b, 50 and electrical wires 17 and is inserted into a seat 60 of a partition wall 34, as illustrated in Figure 15.
The securing element 170 preferably comprises a first portion 172 and a second portion 174 reciprocally movable from the opened position to the closed position, and vice-versa. In the closed position, the first portion 172 and the second portion 174 creates two accommodating receptacles 182a and 182b therebetween. Tubes 48a, 48b, 50 and electrical wires 17 are advantageously received in the accommodating receptacles 182a and 182b.
The first portion 172 move with respect to the second portion 174 around a hinge 176.
The first portion 172 and the second portion 174 are preferably formed as two separated body.
The first portion 172 preferably comprises two protuberances 178a, 178b (see Figure 11) abutting against respective surfaces 180a, 180b of the second portion 174 when the securing element 170 is in its closed position. The two protuberances 178a, 178b preferably define the width of the accommodating receptacles 182a, 182b.
The securing element 170 preferably comprises a blocking device 120 apt to maintain the securing element 170 in its closed position. Preferably, the blocking device 120 is apt to maintain the first portion 172 and the second portion 174 in the closed position.
The blocking device 120 preferably comprises a hook closing system. Preferably the hook closing system comprises a couple of hooks 121a, 121b at the first portion 172, and a couple of hooks 122a, 122b at the second portion 174.
Hooks 121a, 121b of the first portion 172 engage hooks 122a, 122b of the second portion 174, when the securing element 170 is brought in its closed position, to prevent accidental aperture of the same.
Hooks 121a, 121b, 122a, 122b also preferably separates the accommodating receptacles l82a, l82b one to the other.
The securing element 170 preferably further comprises a closing device 140 apt to securely close one of the accommodating receptacle l82a. The closing device 140 preferably comprises a cover element 142 swingably arranged with respect to the first portion 172 or the second portion 174 (the first portion 172 in the preferred embodiment here illustrated).
The cover element 142 move with respect to the first portion 172 around a hinge 144.
Hooks 146 at the cover element 142 engage seats 148 at the second portion 174, when the cover element 142 is brought in its closed position, to prevent accidental aperture of the same.
Furthermore, as illustrated in Figure 16, the cover element 142 allows insertion of one or more tube and/or wire 150 in the accommodating receptacle l82a, or extraction of one or more tube and/or wire 150 from the accommodating receptacle l82a, even when the securing element 170 is already arranged in the seat 60.
The securing element 170 further comprises a sealing element 190 arranged in the accommodating receptacles l82a, l82b around tubes 150 and electrical wires 17 received therein.
When the securing element 170 is in closed position and inserted in the seat 60 of the partition wall 34 the sealing element 190 advantageously ensures good insulation between the device chamber 40 and the intermediate compartment 54. More preferably, the sealing element 190 advantageously ensures good insulation between the device chamber 40 and the intermediate compartment 54 when the latest is filled with insulation material. The sealing element 190 avoids that insulating material reaches the device chamber 40 during manufacturing of the apparatus 1 when the insulating material is injected into the intermediate compartment 54.
The sealing element 190 preferably comprises a layer of elastic material, preferably a layer of foam rubber, which lies over the first portion 172 and the second portion 174.
The layer advantageously wraps said one or more tube and/or wire 150 and electrical wires 17.
The sealing element 190 is preferably of the type above described with reference to first embodiment. In order to ensure the connection of the securing element 170 in its closed position into the seat 60 of the lower partition wall 34, the securing element 170 preferably comprises a connecting device 192.
In the preferred embodiment here illustrated, the connecting device 192 preferably comprises a first slot 194 extending longitudinally in an outer surface 172a of the first portion 172 and a second slot 196 extending longitudinally in an outer surface 174a of the second portion 174.
The securing element 170 is advantageously connected to the partition wall 34 by inserting it into the seat 60. Preferably, the slots 194, 196 of the securing element 170 receive the respective opposite edges 62a, 62b of the seat 60 while the securing element 170 is inserted into the seat 60.
The connecting device 192 further preferably comprises a snap fit connection, preferably comprising hooks 198 at the outer surface 172a of the first portion 172 and at the outer surface 174a of the second portion 174.
When the securing element 170 is in closed position and inserted in the seat 60 of the partition wall 34 the hooks 198 advantageously engage respective surfaces of the seat 60.
Hooks 198 prevent disconnection of the securing element from the seat 60.
The securing element 170 preferably comprises a further accommodating receptacle 182c apt to receive further tubes and/or wires 148, as illustrated in Figure 15 where a single tube 148 is depicted.
The third accommodating receptacle 182c is preferably U-shaped and has therefore an open side. The third accommodating receptacle 182c is preferably monolithically formed at a first end 174b of the second portion 174.
A sealing element 190’ is preferably arranged in the third accommodating receptacle 182c for the tubes and/or electrical wires 148 received therein.
Preferably, when the securing element 170 is inserted in the seat 60 the U-shaped accommodating receptacle 182c receives at its open side a tubes and/or electrical wires 148 therein, as illustrated in Figures 14 and 15. When the securing element 170 is totally inserted in the seat 60, the rear wall 60a of the seat 60 closes the open side of the third accommodating receptacle 182c and tubes and/or electrical wires 148 are securely maintained therein.
It is clear that the securing element 170 according to this embodiment achieves the same advantages above described for the previous embodiment.
It has to be noted that the securing element 170 according this embodiment advantageously enhances the mounting operation of the securing element 170 at the seat 60 with tubes and/or electrical wires 148 securely maintained therein. Advantageously, in fact, the securing element 170 comprises a plurality of accommodating receptacles l82a, l82b, l82c at least partially separated one to the other and apt to receive one or more tubes and/or wires 17, 148, 150 therein. More advantageously, the securing element 170 allows the securing of tubes and/or wires 17, 148, 150 to the cooling apparatus 1 by separately arranging tubes and/or wires 17, 148, 150 into the plurality of accommodating receptacles l82a, l82b, l82c.
Preferably, electrical wires 17 (and/or tube(s) or pipe(s)) are firstly arranged in the second accommodating receptacles l82b; namely, the securing element 170 in its open position (Figure 11) receives the electrical wires 17 (and/or tube(s) or pipe(s)), and then it is closed to wrap the sealing element 190 around the electrical wires 17 (and/or tube(s) or pipe(s)). This step can be performed manually by an operator or automatically by a suitable machine.
A tube 148 (or a plurality of tubes or pipes and/or electrical wire(s)) is then preferably arranged in the seat 60 of the partition wall 34, and the securing element 170 with electrical wires 17 (and/or tube(s) or pipe(s)) already received therein, is inserted into the seat 60, as explained above (Figures 14 and 15). When the securing element 170 is totally inserted in the seat 60, the tube 148 is securely maintained therein by the securing element 170.
With the securing element 170 arranged in the seat 60, a further tube 150 (or a plurality of tubes and/or electrical wire(s)) can be inserted in the first accommodating receptacle l82a (Figure 16), and the cover element 142 can be brought in its closed position.
Advantageously, the mounting operations of tubes and/or wires are therefore simplified compared to known system, and in addition, they can be easily automatized; any accommodating receptacle cab be used for accommodating wire(s) and/or tube(s) independently from the other accommodating receptacle, which increases the flexibility of the securing element; a same kind of securing element 170 can therefore be used for assembly different type of cooling apparatuses, having a different number and/or positioning of tubes and wires. With reference to Figures 17 to 22, a securing element 270 according to a further preferred embodiment of the invention is described.
The securing element 270, according to an aspect of the invention and analogously to the securing elements previously described, is advantageously used for securing tubes 48a, 48b and/or electrical wires to a partition wall 34 between adjacent compartments of a cooling apparatus, more preferably for securing tubes and/or electrical wires to a seat 260 in said partition wall 34, as partially illustrated in Figures 21 and 22.
The securing element 270 is configured to have a first opened position, as illustrated for example in Figures 19 and 20, and a closed position, as illustrated for example in Figures 17 and 18.
In the closed position, the securing element 270 preferably receives one electrical wire or one tube and is inserted into a seat of a partition wall.
The securing element 270 preferably comprises a first portion 272 and a second portion 274 reciprocally movable from the opened position to the closed position, and vice-versa. In the closed position, the first portion 272 and the second portion 274 creates an accommodating receptacle 282. Tubes 48a, 48b and/or electrical wires are advantageously received in the accommodating receptacle 282, more preferably just one tube or just one wire.
The first portion 272 and the second portion 274 reciprocally move around a common hinge portion 276.
First portion 272, second portion 274 and the hinge portion 276 are preferably formed as a one-piece monolithic body, more preferably formed by means of injection moulding of a plastic material.
The securing element 270 preferably comprises a blocking device 220 apt to maintain the securing element 270 in its closed position. Preferably, the blocking device 220 is apt to maintain the first portion 272 and the second portion 274 in the closed position.
The blocking device 220 preferably comprises a snap fit connection. Preferably the snap fit connection comprises a closed seat 221 at the first portion 272 and a hook 222 at the second portion 274.
The hook 222 of the second portion 274 engages the closed seat 221 of the first portion 272, when the securing element 270 is brought in its closed position, to prevent accidental aperture of the same.
The securing element 270 further comprises a sealing element 290 arranged in the accommodating receptacle 282 around tubes 48a, 48b and/or electrical wires received therein.
When the securing element 270 is in closed position and inserted in the seat 260 of a partition wall the sealing element 290 advantageously ensures good insulation between two adjacent compartments.
More preferably, the sealing element 290 advantageously ensures good insulation between the two adjacent compartments when one of them is filled with insulation material. The sealing element 290 avoids that insulating material reaches a compartment when the insulating material is injected into an adjacent compartment.
The sealing element 290 preferably comprises a layer of elastic material, preferably a layer of foam rubber, which lies over the first portion 272 and the second portion 274.
The sealing element 290 is preferably of the type above described with previous embodiments.
In order to ensure the connection of the securing element 270 in its closed position into the seat of a partition wall, the securing element 270 preferably comprises a connecting device 292.
In the preferred embodiment here illustrated, the connecting device 292 preferably comprises a first hook 294, preferably defined in a rib 272a of the first portion 272 and a second hook 296, preferably defined in a recess 274a of the second portion 274.
Hooks 296, 298 of the securing element 270 engage respective recesses 260a of the seat 260 when the securing element 270 is inserted therein (as shown in Figures 21 and 22).
Hooks 296, 298 prevent disconnection of the securing element 270 from the seat 260.
It is clear that the securing element 270 according to this embodiment achieves the same advantages above described for the previous embodiments.
It has thus been shown that the present invention allows all the set objects to be achieved. In particular, it makes it possible to provide a securing element for securing tubes and/or wires to partition walls between compartments in cooling apparatus that ensures good insulation between the same compartments.
The present invention has been here described in some of its possible embodiments, however those skilled in the art will recognize that several modifications to the described embodiments can be made, as well as other embodiments are possible, without departing from the protection scope defined in the appended claims.

Claims

1. A cooling apparatus (1) comprising:
- an outer casing (6) which encloses at least one partition wall (34) to define two or more adjacent compartments (40, 54, 20, 26) for said cooling apparatus (1);
- one or more tubes and/or wires (48a, 48b, 50, 17; 148, 150) extending in two adjacent compartments (40, 54, 20, 26) through a seat (60; 260) defined in said partition wall (34);
- a securing element (70; 170; 270) for securing said one or more tubes and/or wires (48a, 48b, 50, 17; 148, 150) to said seat (60; 260);
wherein said securing element (70; 170; 270) comprises:
- a first portion (72; 172; 272) and a second portion (74; 174; 274) reciprocally movable from an opened position to a closed position, and vice-versa, to define, in said closed position, at least one accommodating receptacle (82; l82a, l82b, l82c; 282) for said one or more tubes and/or wires (48a, 48b, 50, 17; 148, 150);
- a connecting device (92; 192; 292) for connecting said securing element (70; 170; 270), in said closed position, into said seat (60; 260) of said partition wall (34);
- a sealing element (90; 190; 290) arranged in said at least one accommodating receptacle (82; l82a, l82b, l82c; 282) around said one or more tubes and/or wires (48a, 48b, 50, 17; 148, 150) received therein.
2. The cooling apparatus (1) of claim 1, wherein said first portion (72; 172; 272) and said second portion (74; 174; 274) are reciprocally movable around a hinge portion.
3. The cooling apparatus (1) of any one of the preceding claims, wherein said securing element (70; 270) is formed as a one-piece monolithic body.
4. The cooling apparatus (1) of any one of the preceding claims, wherein said sealing element (90; 190; 290) is a layer of an elastic material.
5. The cooling apparatus (1) of any one of the preceding claims, wherein said layer wraps said tubes and/or wires (48a, 48b, 50, 17; 148, 150).
6. The cooling apparatus (1) of any one of the preceding claims, wherein said connecting device (92; 192) comprises at least a slot (94, 96; 194, 196) apt to receive an edge (62a, 62b) of said seat (60; 260).
7. The cooling apparatus (1) of claim 6, wherein said at least a slot (94, 96; 194,
196) extends longitudinally in an outer surface (72a; l72a) of said first portion (72; 172) and/or in an outer surface (74a; l74a) of said second portion (74; 174).
8. The cooling apparatus (1) of any one of the preceding claims, wherein said connecting device (92; 192; 292) comprises a snap fit connection.
9. The cooling apparatus (1) of any one of the preceding claims, wherein said securing element (70; 170; 270) further comprises a blocking device (120; 220) apt to maintain said first portion (172; 272) and said second portion (174; 274) in said closed position.
10. The cooling apparatus (1) of any one of the preceding claims, wherein said securing element (70; 170; 270) further comprises a closing device (140) apt to securely close said at least one accommodating receptacle (l82a).
11. The cooling apparatus (1) of claim 10, wherein said closing device (140) comprises a cover (142) swingably arranged with respect to said first portion (172) or said second portion (174).
12. The cooling apparatus (1) of any one of the preceding claims, wherein said securing element (70; 170; 270) comprises a plurality of accommodating receptacles (182a, 182b, 182c) at least partially separated one to the other and apt to receive one or more of said tubes and/or wires (17; 148, 150) separately.
13. The cooling apparatus (1) of any one of the preceding claims, wherein said partition wall (34) divides a storage compartment (20, 26) for the storage of products to be cooled from a compartment (40, 54, 20, 26) apt to receive a cooling system (40) operable to keep cold the interior of said storage compartment (20, 26).
14. A method for securing one or more tubes and/or wires (48a, 48b, 50, 17; 148, 150) into a seat (60; 260) of a partition wall (34) that defines two or more adjacent compartments (40, 54, 20, 26) of a cooling apparatus (1), said method comprising the steps of:
- providing a securing element (70; 170; 270) for securing said one or more tubes and/or wires (48a, 48b, 50, 17; 148, 150) to said seat (60; 260), said securing element (70; 170; 270) comprising a plurality of accommodating receptacles (82; l82a, l82b, l82c; 282) at least partially separated one to the other and apt to receive said one or more tubes and/or wires (48a, 48b, 50, 17; 148, 150);
- securing said one or more tubes and/or wires (48a, 48b, 50, 17; 148, 150) to said cooling apparatus (1) by separately arranging said one or more tubes and/or wires (48a, 48b, 50, 17; 148, 150) into one or more of said plurality of accommodating receptacles (82; l82a, l82b, l82c; 282).
15. The method of claim 14, wherein it comprises the steps of:
- arranging one or more tubes and/or wires (17) into a first one of said plurality of accommodating receptacles (l82b) of said securing element (170) before its insertion into said seat (60);
- arranging one or more tubes and/or wires (148) into said seat (60) before insertion of said securing element (170) into said seat (60);
- inserting said securing element (170) into said seat (60) for receiving said one or more tubes and/or wires (148) previously arranged into said seat (60) into a second one of said plurality of accommodating receptacles (l82c) of said securing element (170).
16. The method of claim 14, wherein it comprises the steps of:
- arranging one or more tubes and/or wires (17) into a first one of said plurality of accommodating receptacles (l82b) of said securing element (170) before its insertion into said seat (60);
- inserting said securing element (170) into said seat (60);
- arranging one or more tubes and/or wires (150) into a third one of said plurality of accommodating receptacles (l82a) of said securing element (170) after its insertion into said seat (60).
17. The method of claim 14, wherein it comprises the steps of: - arranging one or more tubes and/or wires (17) into a first one of said plurality of accommodating receptacles (l82b) of said securing element (170) before its insertion into said seat (60);
- arranging one or more tubes and/or wires (148) into said seat (60) before insertion of said securing element (170) into said seat (60);
- inserting said securing element (170) into said seat (60) for receiving said one or more tubes and/or wires (148) previously arranged into said seat (60) into a second one of said plurality of accommodating receptacles (l82c) of said securing element (170);
- arranging one or more tubes and/or wires (150) into a third one of said plurality of accommodating receptacles (l82a) of said securing element (170) after its insertion into said seat (60).
18. The method of claim 16 or 17, wherein it further comprises the step of closing said third accommodating receptacle (l82a) through the closure of a cover element (142).
EP18708400.9A 2018-03-01 2018-03-01 Cooling apparatus comprising a securing element for securing tubes or wires or the like Active EP3759407B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2018/055018 WO2019166090A1 (en) 2018-03-01 2018-03-01 Cooling apparatus comprising a securing element for securing tubes or wires or the like

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EP3759407A1 true EP3759407A1 (en) 2021-01-06
EP3759407B1 EP3759407B1 (en) 2025-09-17

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Citations (1)

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US20070227771A1 (en) * 2006-03-29 2007-10-04 Franz Sterner Gasket made of an elastomer, especially silicone

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US5000010A (en) * 1990-06-22 1991-03-19 General Electric Company Refrigerator with hot liquid loop/case protection
DE202006019375U1 (en) * 2006-12-22 2007-04-12 Bsh Bosch Siemens Hausgeraete Refrigeration device has cable feed in form of open half shell with seal and cable fixing arrangement within it
CN103527857B (en) * 2013-10-25 2015-10-21 合肥华凌股份有限公司 For Wire fastener and the refrigerator of refrigerator

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US20070227771A1 (en) * 2006-03-29 2007-10-04 Franz Sterner Gasket made of an elastomer, especially silicone

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EP3759407B1 (en) 2025-09-17

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