EP4388257A1 - Procédé d'agencement d'un composant électrique ou électronique sur un dispositif de refroidissement et/ou de congélation - Google Patents

Procédé d'agencement d'un composant électrique ou électronique sur un dispositif de refroidissement et/ou de congélation

Info

Publication number
EP4388257A1
EP4388257A1 EP22769670.5A EP22769670A EP4388257A1 EP 4388257 A1 EP4388257 A1 EP 4388257A1 EP 22769670 A EP22769670 A EP 22769670A EP 4388257 A1 EP4388257 A1 EP 4388257A1
Authority
EP
European Patent Office
Prior art keywords
component
freezer
refrigerator
electrical
inner container
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.)
Pending
Application number
EP22769670.5A
Other languages
German (de)
English (en)
Inventor
Thomas Gruidl
Martin Klaunzer
Roland Tiefnig
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.)
Liebherr Hausgeraete Lienz GmbH
Original Assignee
Liebherr Hausgeraete Lienz GmbH
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
Priority claimed from DE102021128683.2A external-priority patent/DE102021128683A1/de
Application filed by Liebherr Hausgeraete Lienz GmbH filed Critical Liebherr Hausgeraete Lienz GmbH
Publication of EP4388257A1 publication Critical patent/EP4388257A1/fr
Pending legal-status Critical Current

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
    • F25D23/006—General constructional features for mounting refrigerating machinery components
    • 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
    • F25D23/06—Walls
    • 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 relates to a method for arranging an electrical or electronic component on a refrigerator and/or freezer.
  • plastic-sheathed cables with a single-core or multi-core composite of metal cores are usually used for the electrical supply of loads in refrigerators and/or freezers or for signal transmission. These are attached to the components of the refrigerator by means of brackets, clips or adhesive tapes, especially on the foam side in the case of foamed insulation.
  • Individual sensors or heating elements are also attached to the designated locations using suitable attachment options and are then supplied with electricity by cables and/or connected to corresponding cables for signal transmission.
  • the assembly of these electrical components is mostly done manually with great effort and a certain error rate, since the components are partly undefined in their form, especially cables, and partly, especially sensitive sensors or large components, are difficult to handle.
  • a conceivable case of error is when, after the installation of the cables or other components, the installation space, i.e. the space between the inner container and the housing of the device, is filled with foam, for example polyurethane foam, for insulation purposes, and then a faulty electrical connection caused by incorrect installation or the foam filling Contacting is detected. Such defects can only be found and corrected by removing the foam, which is associated with a correspondingly high level of effort.
  • foam for example polyurethane foam
  • connection of the foam with cables or electrical components is disadvantageous for a later recycling process, since although the metallic conductors can be separated from the plastic fraction, polyurethane foams and the plastic fraction, for example, are contaminated by the jacket materials and thus make high-quality recycling processes impossible.
  • heaters to avoid the formation of condensate such as so-called frame heaters
  • pipes connected to the compressor circuit on the pressure side.
  • These pipes point have a high geometric complexity and can only be produced with considerable effort and can only be transported efficiently and damage-free to a limited extent or with great effort. Additional damage may occur during processing, resulting in high frequency of functional defects.
  • the direct integration into the compressor circuit does not allow the heating function to be regulated, which impairs the system's function and efficiency. Apart from that, pipes for heating have poor contact.
  • the object of the present invention is to simplify the arrangement of electrical or electronic components in refrigerators and/or freezers.
  • a method for the additive application of electrical and/or electronic components by an additive application method of a material onto a suitable substrate of the device. After application, the material applied in this way is cured.
  • the so-called additive manufacturing methodology is characterized in that one or a wide variety of materials are applied to a substrate in the form of a component of refrigerators and/or freezers, preferably automatically in one or more layers. and cured using a curing mechanism such as ultraviolet light curing or cooling. It is also conceivable to use a multi-component, preferably a two-component system, in which, for example, a so-called resin and a so-called hardener are mixed in a defined proportion during or shortly before application and then harden immediately.
  • Additive application of materials makes it possible to apply any electrical and/or electronic functions to geometrically complex components of a refrigerator and/or freezer in a reproducible, cost-efficient and high-quality manner.
  • An additive application of electrical lines and/or electrical components to components of refrigerators and/or freezers also creates degrees of freedom in the attachment of electrical elements and a high degree of flexibility in the routing of electrical lines.
  • an electrically conductive thermoplastic or a thermoplastic made electrically conductive by adding electrically conductive additives, which is preferably present as a filament, or a metallic material or the like is targeted with a nozzle or opening applied in doses to the substrate and cured immediately after application by ultraviolet light or reactively or by cooling. This creates several layers that are connected to each other and take on a defined form as a whole.
  • conductive ink or conductive paint or similar is deposited as droplets on the substrate and then cured directly by ultraviolet light or reactively. This in turn creates several layers that are connected to each other and take on a defined form as a whole. Such a method is also covered by the invention.
  • the electrically conductive layers applied to the components of refrigerators and/or freezers by additive methods are electrically insulated from the environment and from other electrically conductive components.
  • Electrical insulation is therefore preferably applied to the component after the component or components have been applied, e.g. by material extrusion or material application.
  • This insulation is preferably achieved by electrically insulating layers made of thermoplastic or another electrically insulating material.
  • the insulating material is in turn applied additively, for example by material extrusion or material application, to the electrically conductive application and then cured directly by ultraviolet light or reactively. If the process is carried out several times, layers are formed again.
  • the insulating material covers or encapsulates the electrically conductive material and preferably the adjacent substrate, providing electrical insulation.
  • the substrate is preferably electrically insulating or is provided with an electrically insulating layer.
  • the material is applied by a robot or in an automated manner in some other way.
  • the combination of an additive process with a robot with linear and rotary machine axes is particularly advantageous, since the materials can be applied to very complex geometries thanks to the resulting geometric flexibility of the print head.
  • the trajectory of the print head can also be easily adapted to different geometries by using a robot.
  • a robot can also be embedded in an existing automation.
  • a cost advantage is achieved by automating previously manual production steps, such as laying cables.
  • the variety of parts is also reduced because, for example, cables are no longer required, which in turn creates a cost advantage.
  • the automatic additive application of materials leads to better reproducibility and thus to a higher quality level of the manufactured components.
  • an advantageous standardization takes place, since the positions of the electrical lines and/or electrical components can be precisely defined.
  • the component of the refrigerator and/or freezer is preferably an inner container or a motor niche or a thermoformed or deep-drawn 2D or 3D component of the refrigerator and/or freezer.
  • components or substrates such as inner containers, engine niche or thermoformed 2D or 3D components of refrigerators and / or freezers, passages through walls, for example for cabling, are reduced or made unnecessary, which means a reduction or prevention of Escape of foam during foaming causes.
  • Substituting cables with corresponding additively applied conductive materials prevents cables from showing through on visible surfaces of the refrigerator and/or freezer.
  • the component is preferably a heating element or a sensor or a circuit board or circuit, e.g. for regulation or control.
  • heating elements or sensors using an additive process also leads to advantages in terms of function, efficiency and safety.
  • a targeted energy input can be achieved through optimal coupling to relevant positions depending on local requirements.
  • the refrigerator and/or freezer can, on the one hand, in its basic function, which is to provide a cold storage room, but also with regard to the design or the lighting or other intelligent functions, such as multiple sensors or multiple actuators at all conceivable points of the refrigerator and/or freezer while at the same time eliminating cables and pipes that prevent recycling.
  • the invention also relates to a refrigerator and/or freezer with one or more components that are applied using a method according to the invention.
  • the plastic-coated cables or pipelines or the like can be largely or completely eliminated. This means that the foam is no longer contaminated with jacket materials or the like and can therefore be recycled more easily.
  • the electrical and/or electronic components are preferably mounted on an inner container or on an engine niche or on a thermoformed component or on a panel or on a door or on a coated sheet metal of the refrigerator and/or freezer.
  • the exemplary embodiment relates to an inner container made of plastic for a freezer, onto which electrically conductive layers are automatically applied in defined paths by means of a robot using the additive method.
  • the electrically conductive layers consist of thermoplastics that have been made electrically conductive by adding electrically conductive additives
  • the electrically conductive layers are electrically insulated by a further additive application of electrically non-conductive thermoplastic by material extrusion. Since the inner container is made of electrically non-conductive plastic, the conductive layers are completely surrounded by insulating material.
  • Heating elements are also applied to the inner container using the additive material extrusion process and electrically insulated by a further additive application of electrically non-conductive thermoplastic using material extrusion.
  • the application takes place on a device, the device comprising a holder for the inner container and a robot.
  • the holder holds the inner container, for example, in such a way that the concave side of the inner container, i.e. the side that is cooled during operation, can be slipped over a receptacle, which fixes the inner container in space and makes the foam side of the inner container easily accessible for a robot.
  • the inner container can also be fixed by clamps or jaws or other clamping or fastening means.
  • the robot moves along its programmed path and the print head attached to the robot applies the respective material to the inner container synchronously.
  • the inner container can be placed on the holder in an automated line by another robot or other conveying means or manually and can be removed from it again after the application by these methods.
  • a further advantage of the invention is that no corrosion of heating pipes can occur.

Landscapes

  • 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)

Abstract

L'invention concerne un procédé d'agencement d'un composant électrique ou électronique sur un dispositif de refroidissement et/ou de congélation. Le procédé d'agencement du composant est réalisé par application additive d'un matériau sur un substrat du dispositif de refroidissement et/ou de congélation, et le matériau est ensuite soumis à un processus de durcissement.
EP22769670.5A 2021-09-01 2022-08-29 Procédé d'agencement d'un composant électrique ou électronique sur un dispositif de refroidissement et/ou de congélation Pending EP4388257A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102021122576 2021-09-01
DE102021128683.2A DE102021128683A1 (de) 2021-09-01 2021-11-04 Verfahren zum Anordnen eines elektrischen oder elektronischen Bauelementes an einem Kühl- und/oder Gefriergerät
PCT/EP2022/073902 WO2023031091A1 (fr) 2021-09-01 2022-08-29 Procédé d'agencement d'un composant électrique ou électronique sur un dispositif de refroidissement et/ou de congélation

Publications (1)

Publication Number Publication Date
EP4388257A1 true EP4388257A1 (fr) 2024-06-26

Family

ID=83319337

Family Applications (1)

Application Number Title Priority Date Filing Date
EP22769670.5A Pending EP4388257A1 (fr) 2021-09-01 2022-08-29 Procédé d'agencement d'un composant électrique ou électronique sur un dispositif de refroidissement et/ou de congélation

Country Status (2)

Country Link
EP (1) EP4388257A1 (fr)
WO (1) WO2023031091A1 (fr)

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITPN20030016A1 (it) * 2003-02-28 2004-09-01 Electrolux Home Products Corporatio N N V Impianto e procedimento per applicazione di evaporatore a cella formata.
DE102008009786A1 (de) * 2008-02-19 2009-08-20 BSH Bosch und Siemens Hausgeräte GmbH Kältegerät, Verfahren sowie Vorrichtung zu dessen Herstellung
KR20110133052A (ko) * 2009-03-25 2011-12-09 픽사룩스 이노베이션즈 피티와이 엘티디 조명 패널
DE102010031249A1 (de) * 2010-07-12 2012-01-12 BSH Bosch und Siemens Hausgeräte GmbH Gehäusekomponente für ein Kältegerät
CN104334986B (zh) * 2012-06-07 2016-09-14 三星电子株式会社 冰箱
JP6800010B2 (ja) * 2016-12-27 2020-12-16 シャープ株式会社 断熱構造体

Also Published As

Publication number Publication date
WO2023031091A1 (fr) 2023-03-09

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