EP3371530A2 - Réfrigérateur et/ou congélateur - Google Patents

Réfrigérateur et/ou congélateur

Info

Publication number
EP3371530A2
EP3371530A2 EP17711091.3A EP17711091A EP3371530A2 EP 3371530 A2 EP3371530 A2 EP 3371530A2 EP 17711091 A EP17711091 A EP 17711091A EP 3371530 A2 EP3371530 A2 EP 3371530A2
Authority
EP
European Patent Office
Prior art keywords
refrigerant circuit
refrigerator
suction line
freezer
cooling
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
EP17711091.3A
Other languages
German (de)
English (en)
Other versions
EP3371530B1 (fr
Inventor
Martin Kerstner
Jochen Hiemeyer
Michael Freitag
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
Liebherr Hausgeraete Ochsenhausen GmbH
Original Assignee
Liebherr Hausgeraete Lienz GmbH
Liebherr Hausgeraete Ochsenhausen 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
Application filed by Liebherr Hausgeraete Lienz GmbH, Liebherr Hausgeraete Ochsenhausen GmbH filed Critical Liebherr Hausgeraete Lienz GmbH
Publication of EP3371530A2 publication Critical patent/EP3371530A2/fr
Application granted granted Critical
Publication of EP3371530B1 publication Critical patent/EP3371530B1/fr
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
    • F25D19/00—Arrangement or mounting of refrigeration units with respect to devices or objects to be refrigerated, e.g. infrared detectors
    • F25D19/02—Arrangement or mounting of refrigeration units with respect to devices or objects to be refrigerated, e.g. infrared detectors plug-in type
    • 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
    • F25D21/00—Defrosting; Preventing frosting; Removing condensed or defrost water
    • F25D21/14—Collecting or removing condensed and defrost water; Drip trays
    • 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
    • F25D2201/00—Insulation
    • F25D2201/10—Insulation with respect to heat
    • F25D2201/14—Insulation with respect to heat using subatmospheric pressure

Definitions

  • the present invention relates to a refrigerator and / or freezer with at least one body, which has at least one full vacuum and with at least one body arranged in the cooled, cooled interior, wherein the device has at least one refrigerant circuit, which serves to cool the interior.
  • a full-vacuum insulating body is preferably understood to mean that the body of the device consists of more than 90% of the insulating surface of a contiguous vacuum insulation space.
  • the full vacuum insulation according to the present invention consists of a foil bag, the interior of which is filled with a support material, such as perlite, and in the interior of which there is a vacuum.
  • this full-vacuum insulating body can be located only in the region of the body or else additionally in the closure element, ie in the door, drawer or flap of the appliance, by means of which the cooled interior can be closed.
  • the envelope of the film bag is a diffusion-tight envelope, by means of which the gas input in the film bag is so greatly reduced that the gätragtraginged increase in the thermal conductivity of the resulting Vakuumdämm stressess is sufficiently low over its lifetime.
  • the life span is, for example, a period of 15 years, preferably 20 years and more preferably 30 years.
  • the increase in the thermal conductivity of the vacuum insulation body due to the introduction of gas is ⁇ 100% and particularly preferably ⁇ 50% over its service life.
  • the area-specific gas transmission rate of the cladding is ⁇ 10 "5 mbar * l / s * m 2 and more preferably ⁇ 10 " 6 mbar * l / s * m 2 (measured according to ASTM D-3985).
  • This gas passage rate applies to nitrogen and oxygen.
  • low gas transmission rates preferably in the range of ⁇ 10 "2 mbar * l / s * m 2 and particularly preferably in the range of ⁇ 10" 3 mbar * l / s * m 2 (measured according to ASTM F - 1249-90).
  • the above-mentioned small increases in the thermal conductivity are achieved by these low gas passage rates.
  • the refrigerator or freezer according to the invention is designed with such a full thermal insulation, which preferably has one or more of the aforementioned features and forms a part of the body and is optionally additionally arranged in the closure element.
  • a full-surface vacuum insulation has far-reaching consequences for the function of the refrigerator or freezer. Due to the greatly reduced heat input into the cooled interior, the required cooling capacity is reduced and due to the resulting lower heat flows, the requirements for the heat exchanger (evaporator, condenser) of the refrigerant circuit change.
  • thermal bridges in the insulation have a percentage-increased influence on the total heat loss or heat input into the cooled interior.
  • passages through the vacuum insulation chamber represent increased complexity and must be avoided as far as possible in order to achieve a sufficient quality level in production.
  • the present invention is therefore the object of developing a refrigerator and / or freezer of the type mentioned in that the simplest possible and thus safe production of VollvakuumdämmMechs whose production is relatively complex, is guaranteed.
  • the complete refrigerant circuit is designed as an assembly which is inserted into the body.
  • the assembly is suitably placed on the body.
  • the term "in” does not mean that the entire assembly is within the body, i.e. within the refrigerated interior.
  • the assembly is connected to the body so that a part of the components of the refrigerant circuit within the cooled interior and a part of the components of the refrigerant circuit outside the cooled interior are arranged.
  • At least one and preferably exactly one edge-side recess is arranged in the full-vacuum insulating body, through which the suction line runs from the evaporator to the compressor of the refrigerant circuit and which has at least one thermal insulation, preferably at least one conventional thermal insulation is provided.
  • the Vollvakuumdämmève has at least one and preferably exactly one edge-side recess or recess through which extends at least the suction line from the evaporator to the compressor.
  • the capillary, through which the refrigerant passes from the condenser to the evaporator, preferably also runs through the aforementioned peripheral recess.
  • the capillary can run inside the suction line.
  • the complete refrigerant circuit is subsequently inserted onto the prefabricated full vacuum housing, ie onto the body with the full vacuum insulation body, such that the suction pipe is in the return of the full vacuum housing. It can then be insulated by a conventional insulation, such as a foaming.
  • At least one condensation water line may be present, by means of which water is discharged from the cooled interior, whereby this condensation line also runs through said edge-side recess, which is also referred to below as a recess.
  • the condensation water outlet is preferably provided with a thermal insulation, or covered, which is also in this case preferably a conventional thermal insulation.
  • the suction line runs at least partially along the outside of the full-vacuum insulating body or the body and the at least one thermal insulation, preferably a conventional thermal insulation, such as a PU foam, the suction line over a section or over the entire length of the running on the outside suction line is present.
  • the at least one thermal insulation preferably a conventional thermal insulation, such as a PU foam
  • the refrigerant circuit is located in the bottom region of the device. It is conceivable that the module is arranged on the bottom portion of the device, that the evaporator above the floor, ie in the cooled interior, and the compressor and the condenser below the floor, ie outside the cooled interior, is located. In this case, therefore, there is provided a "pedestal aggregate" comprising the compressor and the condenser, and further comprising the evaporator disposed inside the refrigerated space.
  • the assembly may further include at least one fan that conveys or circulates the air cooled by the evaporator into the refrigerated interior.
  • an arrangement of the assembly in another section of the refrigerator or freezer is conceivable, such as, on the back of the body.
  • the present invention is not limited to cabinet type refrigerators and / or freezers, but also includes freezer or chest freezers.
  • the full vacuum insulation body can, for example, have a simple rectangular shape comparable to a shoe box and have no or only smaller elevations or depressions.
  • the full vacuum insulation body has only a single recess, namely the edge-side opening mentioned at the beginning, which forms a return to the door plane or to the plane of the closure element.
  • this return preferably forms the receptacle for the lines of refrigeration, these lines preferably being locally conventionally insulated.
  • the Vollvakuumdämmève has at least one film - as stated above - wherein the film is designed as a inverted block bottom bag. This can have in the region of the return film folds that hold the necessary for the formation of the return film excess.
  • the present invention further relates to a method for producing a refrigerator or freezer according to the invention, wherein a method step comprises the insertion of the complete refrigerant circuit as an assembly in the body.
  • a method step comprises the insertion of the complete refrigerant circuit as an assembly in the body.
  • the insertion takes place in such a way that at least the suction line in said return, i. is arranged in the peripheral recess of the body or the Vollvakuumdämm stressess.
  • the prefabricated assembly may comprise at least one compressor, condenser, throttle or capillary, evaporator including the connecting lines and possibly one or more fans, which serve to generate an air flow through the evaporator and / or the condenser.
  • the refrigerant circuit is already filled with refrigerant when inserted into the body.
  • the suction pipe and possibly further pipeline of the refrigerant circuit in the region of the recess and possibly the adjoining sections preferably with conventionally used insulating materials, such as.
  • a PU foaming is absorbed to extend the thermal path through the metal pipes and the To reduce heat loss.
  • the refrigerant circuit which is designed as an assembly further with all actuators, such as. Valves, etc. executed, which are required for the operation of the refrigerant circuit.
  • actuators such as. Valves, etc. executed, which are required for the operation of the refrigerant circuit.
  • control or regulation unit for controlling or regulating the refrigerant circuit.
  • Fig. 1 schematic longitudinal sectional views of the body before and after placing the refrigerant circuit
  • FIG. 2 shows different views of a refrigerator or freezer according to the invention according to FIG. 1.
  • FIG. 1 shows by reference numeral 10 the body of a refrigerator and / or freezer according to the invention.
  • the body has an inner container 12, an outer skin or an outer jacket 14 and a full vacuum insulation 16 arranged therebetween. Apart from this full vacuum insulation, no further thermal insulation is provided.
  • the body 10 is constructed as shown in Figure 1 in box-shaped longitudinal section.
  • the inner container or the inner skin 12 may, for. B. be designed as a plastic part and in particular as a PS deep-drawn part.
  • the outer shell 14 may be made of sheet metal or plastic with attachable sheet metal.
  • the film forming the vacuum insulation body 16 or forming its outer envelope is completely protected by the inner container 12 and the outer skin 14.
  • the refrigerator or freezer has an assembly 20, which contains the complete refrigerant circuit including required actuators, such as, for example, refrigerators.
  • actuators such as, for example, refrigerators.
  • control means or control means such as, for example, a control or regulating unit for controlling or regulating the components of the refrigerant circuit.
  • the components of the assembly 20 include the compressor 21, a line 22 between the compressor and condenser 23, the condenser 23, a capillary 24 from the condenser and the evaporator 25, the evaporator 25, the suction line 27 from the evaporator 25 to the compressor 21st
  • one or more fans 26 are provided which promote the cold air generated in the evaporator 25 in the cooled interior.
  • the capillary 24 may extend in sections, in particular in the region of the return R (see FIG. 2 c)) within the suction line.
  • Figure 2 shows in the figure a) the bottom portion of the refrigerator and / or freezer according to the invention in longitudinal section with built-refrigerant circuit and with the door 100, which closes the front of the device.
  • Figures b) to e) show the sectional views according to the section lines A-A to E-E in Figure 2a).
  • the suction line 27 extends as, for example, from Figure 2 a) not only by this return, but also a section along the underside of the body 10 toward the compressor.
  • the suction tube 27 is conventionally insulated, i. For example, by means of a AusMu- mung to avoid heat loss or heat input.
  • the return R which is also designed to be thermally insulated in order to optimally seal the opening between the outer space and the cooled interior in terms of heat technology.
  • FIG 2 b) shows the view along section line B-B in Figure 2a) and illustrates that the evaporator 25 is embedded in a heat exchanger W1.
  • this heat exchanger or heat exchanger may, for example, be a latent heat storage.
  • the reference symbols KT and GT designate ventilators, which serve by way of example for conveying cold air into the cooling part or freezer part.
  • FIG. 2 d a view according to the section line D-D emerges.
  • This line shows the arrangement in the area below the bottom B of the body 10.
  • the condenser 23 is arranged in a water bath, which serves as a heat buffer.
  • FIG. 2 e shows the sectional view according to the section line EE according to FIG. 2 a) and illustrates the arrangement of the heat exchangers W1 and W2. These are so forms that the condenser or the evaporator or the forming these pipelines run within these heat exchangers.
  • suction line 27 runs in a section towards the compressor below the bottom B of the body 10.
  • FIG. 2 c) shows the arrangement according to the section line C-C in FIG. 2 a) and illustrates the arrangement of the return R in the full-vacuum housing 10.
  • the invention includes the case that only the body 10 is equipped with a full vacuum insulation and the door 100 has a conventional thermal insulation, such as a foaming.
  • the invention also encompasses the case in which the door 100 or another closure element, such as, for example, the flap of a chest, is designed with full vacuum insulation.
  • the assembly of the refrigerant circuit also includes one or more fans 26.
  • the air duct is introduced into the inner container during final assembly.
  • These are preferably channels or the like to be understood, which performs an air guide of the guided through the fan or the air in the corresponding cooled areas of the cooled interior.

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)
  • Refrigerator Housings (AREA)
  • Thermotherapy And Cooling Therapy Devices (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)

Abstract

L'invention concerne un réfrigérateur et/ou un congélateur comprenant au moins un corps, lequel présente au moins un corps d'isolation par vide complet, et au moins un espace intérieur refroidi disposé dans le corps, l'appareil présentant au moins un circuit de frigorigène destiné au refroidissement de l'espace intérieur, ledit circuit de frigorigène étant entièrement conçu sous la forme d'un ensemble fonctionnel mis en oeuvre dans le corps.
EP17711091.3A 2016-03-16 2017-03-16 Réfrigérateur et/ou congélateur Active EP3371530B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102016003222 2016-03-16
PCT/EP2017/000340 WO2017157522A2 (fr) 2016-03-16 2017-03-16 Réfrigérateur et/ou congélateur

Publications (2)

Publication Number Publication Date
EP3371530A2 true EP3371530A2 (fr) 2018-09-12
EP3371530B1 EP3371530B1 (fr) 2022-04-27

Family

ID=58347312

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17711091.3A Active EP3371530B1 (fr) 2016-03-16 2017-03-16 Réfrigérateur et/ou congélateur

Country Status (7)

Country Link
US (1) US20190056166A1 (fr)
EP (1) EP3371530B1 (fr)
CN (1) CN108779950A (fr)
DE (1) DE102017002599A1 (fr)
ES (1) ES2919858T3 (fr)
RU (1) RU2734934C2 (fr)
WO (1) WO2017157522A2 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4403854A1 (fr) 2023-01-20 2024-07-24 Liebherr-Hausgeräte Ochsenhausen GmbH Appareil de refroidissement et/ou de congélation
DE102023106145A1 (de) 2023-01-20 2024-07-25 Liebherr-Hausgeräte Ochsenhausen GmbH Kühl- und/oder Gefriergerät

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102019108834A1 (de) * 2019-02-15 2020-08-20 Liebherr-Hausgeräte Lienz Gmbh Wärmeisoliertes Behältnis
EP4345404A1 (fr) * 2022-09-27 2024-04-03 Liebherr-Hausgeräte Lienz GmbH Appareil de refroidissement et/ou de congélation
US12449182B2 (en) 2023-01-19 2025-10-21 Whirlpool Corporation Refrigeration appliance including a refrigerant line and water line extending through common pass-through of a vacuum-insulated structure

Family Cites Families (13)

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Publication number Priority date Publication date Assignee Title
US1789916A (en) * 1929-02-04 1931-01-20 Westinghouse Electric & Mfg Co Refrigerating apparatus
JPH02309171A (ja) * 1989-05-24 1990-12-25 Mitsubishi Electric Corp 冷凍装置
US5934085A (en) * 1997-02-24 1999-08-10 Matsushita Electric Industrial Co., Ltd. Thermal insulator cabinet and method for producing the same
JP3478792B2 (ja) * 2000-09-14 2003-12-15 松下冷機株式会社 冷蔵庫
DE102004052624A1 (de) * 2004-10-29 2006-05-11 BSH Bosch und Siemens Hausgeräte GmbH Modulares Kältegerät
EP1691152A1 (fr) * 2005-01-14 2006-08-16 Electrolux Home Products Corporation N.V. Unité de réfrigération modulaire et procédé d'assemblage d'une unité de refrigération modulaire dans un armoire d'un appareil de réfrigération
DE102005032976A1 (de) * 2005-04-12 2006-10-19 Liebherr-Hausgeräte Ochsenhausen GmbH Kühl- und/oder Gefriergerät
DE102005057142A1 (de) * 2005-11-30 2007-06-06 BSH Bosch und Siemens Hausgeräte GmbH Kältegerät mit modularem Steuer- und Verdampferaufbau
JP2007249537A (ja) * 2006-03-15 2007-09-27 Sanden Corp 自動販売機
EP2764999B1 (fr) * 2013-02-12 2017-11-29 DoubleDay Acquisitions, LLC Ouverture géométrique exempte de plis dans un panneau isolant sous vide
EP2778582B1 (fr) * 2013-03-15 2018-04-25 Whirlpool Corporation Structure d'isolation sous vide pliée
JP6230294B2 (ja) * 2013-06-25 2017-11-15 東芝ライフスタイル株式会社 冷蔵庫
WO2015044756A1 (fr) * 2013-09-26 2015-04-02 Va-Q-Tec Ag Corps d'isolation sous vide entouré d'une feuille

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4403854A1 (fr) 2023-01-20 2024-07-24 Liebherr-Hausgeräte Ochsenhausen GmbH Appareil de refroidissement et/ou de congélation
DE102023106145A1 (de) 2023-01-20 2024-07-25 Liebherr-Hausgeräte Ochsenhausen GmbH Kühl- und/oder Gefriergerät

Also Published As

Publication number Publication date
RU2018136207A (ru) 2020-04-16
DE102017002599A1 (de) 2017-09-21
ES2919858T3 (es) 2022-07-28
WO2017157522A3 (fr) 2017-11-09
RU2734934C2 (ru) 2020-10-26
EP3371530B1 (fr) 2022-04-27
WO2017157522A2 (fr) 2017-09-21
CN108779950A (zh) 2018-11-09
RU2018136207A3 (fr) 2020-05-19
US20190056166A1 (en) 2019-02-21

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