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WO2007031470A2 - Appareil frigorifique sans givre - Google Patents

Appareil frigorifique sans givre Download PDF

Info

Publication number
WO2007031470A2
WO2007031470A2 PCT/EP2006/066167 EP2006066167W WO2007031470A2 WO 2007031470 A2 WO2007031470 A2 WO 2007031470A2 EP 2006066167 W EP2006066167 W EP 2006066167W WO 2007031470 A2 WO2007031470 A2 WO 2007031470A2
Authority
WO
WIPO (PCT)
Prior art keywords
pipe
evaporator
heater
parallel
frost
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.)
Ceased
Application number
PCT/EP2006/066167
Other languages
German (de)
English (en)
Other versions
WO2007031470A3 (fr
Inventor
Michaela Malisi
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.)
BSH Hausgeraete GmbH
Original Assignee
BSH Bosch und Siemens Hausgeraete 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 BSH Bosch und Siemens Hausgeraete GmbH filed Critical BSH Bosch und Siemens Hausgeraete GmbH
Priority to EP06793352A priority Critical patent/EP1929218A2/fr
Priority to US11/991,901 priority patent/US20090133427A1/en
Publication of WO2007031470A2 publication Critical patent/WO2007031470A2/fr
Publication of WO2007031470A3 publication Critical patent/WO2007031470A3/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B3/00—Ohmic-resistance heating
    • H05B3/40—Heating elements having the shape of rods or tubes
    • H05B3/42—Heating elements having the shape of rods or tubes non-flexible
    • 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
    • F25D21/06—Removing frost
    • F25D21/08—Removing frost by electric heating
    • 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
    • F25D2317/00—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass
    • F25D2317/06—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation
    • F25D2317/065—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation characterised by the air return
    • F25D2317/0655—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation characterised by the air return through the top
    • 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
    • F25D2317/00—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass
    • F25D2317/06—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation
    • F25D2317/066—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation characterised by the air supply
    • F25D2317/0665—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation characterised by the air supply from the top
    • 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
    • F25D2317/00—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass
    • F25D2317/06—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation
    • F25D2317/068—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation characterised by the fans
    • F25D2317/0683—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation characterised by the fans the fans not of the axial type

Definitions

  • the present invention relates to a no-frost refrigerator.
  • Such an assembly conventionally comprises a carrier on which an evaporator and a heater are housed.
  • the assembly is mounted in a cooling space of the refrigerator close to the ceiling for the delimitation of a chamber and communicates with the refrigerator or cold rooms by forced ventilation.
  • the separation of the evaporator chamber from the cooling chambers allows the evaporator to be heated with the forced ventilation switched off with the aid of the heater so as to defrost ice, which is reflected in the course of operation of the refrigerator on the evaporator.
  • the heater is designed as a tube heater, i. in the form of a tube, in which a bad electrical conductor is housed, which can be acted upon for heating with electricity.
  • the pipe is laid on a planteosuring, i. it has a plurality of parallel sections, two of which are connected by a pipe bend. The beginning and end of the tube are thus at opposite edges of the varnishleitblechs.
  • Object of the present invention is to provide no-frost refrigeration device with an evaporator assembly, in which this step can be omitted.
  • the beginning and end of the pipe heating are located on two immediately adjacent parallel pipe sections, electrical leads connected thereto can be led out of the evaporator chamber on a short path which does not require a separate fixation of the supply lines on the carrier.
  • two parallel pipe sections which are located on opposite sides of the pipe heater, connected to each other directly by a pipe bend.
  • this pipe bend runs in the same plane as the parallel pipe sections.
  • the pipe bend as well as the parallel pipe sections can be placed below the evaporator and heat it from below.
  • the pipe bend extends outside the plane of the parallel pipe sections, preferably along an end face of the evaporator, along or across the evaporator.
  • the pipe heater In order to simplify the installation of the pipe heater, it is preferably fixed at the level of the pipe sections connecting the parallel pipe sections to projections of the carrier. Such a fixation can in particular make the conventional heat conducting plate as a carrier of the pipe heater superfluous.
  • the protrusions preferably comprise at least one first protrusion externally abutting a central portion of the arch and a second protrusion inwardly abutting both ends of the bend at the transition between the bend and the adjoining parallel tube sections.
  • This second projection can also be divided into two individual projections which abut one end of the arc at a time.
  • the first projection preferably forms a hook that encompasses the bow.
  • FIG. 1 shows a schematic section through the upper region of a no-frost
  • FIG. 2 is a view of the pipe heater according to a first embodiment of
  • Fig. 3 is a perspective view of the pipe heater according to a second
  • FIG. 4 shows the tube heater from FIG. 2 mounted on a carrier
  • Fig. 5 is a detail view illustrating the installation of the pipe heater according to a modified embodiment.
  • FIG. 6 shows a section of the detail from FIG. 5.
  • Fig. 1 shows a schematic section through the upper portion of a no-frost refrigeration device according to the invention.
  • the refrigerator has a body 1 and a door 2, which are each realized in a conventional manner as filled with a heat-insulating foam layer 3 hollow body.
  • the interior of the body 1 is divided by a likewise heat-insulating partition 4 into an evaporator chamber 5 and a cooling compartment 6.
  • the partition 4 is formed by the bottom of a support 7 for an evaporator assembly on which a known finned evaporator 8 is mounted.
  • the carrier 7 is mounted at a distance from the ceiling of the body 1 and defines together with the side walls of the body 1, the evaporator chamber 5 from.
  • the carrier 7 has an air inlet passage 9 on its side facing the door 2 and an air outlet passage 10 on its side facing the rear wall of the body 1 in a rear region of the evaporator chamber 5, behind the air outlet passage 10 of the carrier 7, a fan 1 1 housed with paddle wheel 12 and motor 13, the air from the evaporator chamber 5 subtracts and presses in an air duct 14.
  • the air duct 14 extends only through the partition wall 4 and opens into the immediately below cooling compartment 6.
  • the air duct 14 could alternatively be guided within the rear wall of the body 1 and with a plurality of through holes to the cooling compartment Be provided over the 6 flowing in the air duct cold air over the height of the cooling compartment. 6 - A -
  • a valve could be provided in the air duct 14, which selectively feeds the cold air flow via various branches of the air duct to one of a plurality of compartments of the refrigeration appliance, for example the refrigerated compartment 6 and a freezer compartment, not shown.
  • the pipe heater 20 comprises a plurality of mutually parallel rectilinear pipe sections 21a, b, c, ..., each of which except the rear left Tube section 21 a is connected to an immediately adjacent section 21 through a pipe bend 22.
  • the pipe section 21 a is connected to the front, right rectilinear portion 21 r by an elongated pipe bend 23 which extends over the entire width of the pipe heater 20.
  • the beginning and end of the pipe heater 20 are so at adjacent parallel portions 21 a, b, so that can be led out to these subsequent supply wires 24 together on the shortest route from the evaporator chamber 5.
  • the evaporator 8 may be, for example, a known and not shown here in detail finned evaporator, which is arranged parallel to the pipe sections 21 or perpendicular thereto slats.
  • FIG 3 shows a modified embodiment of the pipe heater 20, in which the elongated pipe bend 23 is led out of the plane of the pipe sections 21 and extends in front of the side of the evaporator 8 facing the air outlet opening 10.
  • FIG. 4 shows, in a perspective view, the pipe heater 20 of FIG. 2 mounted on the support 7.
  • the pipe sections 21 rest on a base plate 25 of the support 7, which slopes slightly from a front wall 26 surrounding the air inlet opening 9 to an edge 27 is.
  • Behind the edge 27 follows a strong sloping portion 28 and a groove 29, in which - as it represents the deepest region of the bottom plate 25 - accumulating from the evaporator 8 expired condensation and through an opening 30 in the bottom of the channel to a known and evaporator not described here drains off.
  • Each of the rear side 16 of the support 7 facing pipe bends 22 is fixed to the bottom plate 25 by a group of three pins 31, one of which touches the vertex on the outside of the sheet 22 and the other two at the Inside the bow in each case in the transition region to the rectilinear pipe sections 21 abut.
  • the position of each pipe bend 22 is set exactly in the horizontal.
  • bifurcated support members 32 projecting from the bottom plate 25 are provided for securing the evaporator 8 thereon by inserting a refrigerant tube of the evaporator into the fork of the support members 32 and latching them in a widening of the fork.
  • FIG. 5 shows a detailed view of the bottom of the carrier 7 in the vicinity of the edge 27 according to a slightly modified embodiment compared to FIG. 4, wherein in this embodiment the two pins 31 contacting the inside of the sheet 22 have a wide, upwardly tapered projection 33 are replaced and the top of the sheet 22 contacting pin 31 has a better in the section of Fig. 6 to be recognized recess 34 into which the sheet 22 engages.
  • the pipe heater 20 is mounted by first of its rear side adjacent pipe bends 22 in a vertical orientation, as shown in phantom in FIGS. 5 and 6, are placed on the portion 28 of the bottom plate 25.
  • the pin 31 acts as a hook, which prevents the pipe bend 22 from being lifted from the portion 28.
  • the wide projection 33 prevents slippage of the sheet to the left in Fig. 6, so that the pipe bend from the recess 33 can not disengage and the pipe heater 20 is thus firmly locked.
  • the front, the air inlet opening 9 facing pipe bends 22 may be by pins 31 and projections 33 similar to those shown in Fig. 5 and 6 are locked to the bottom plate 25, however, in these latter projections a recess in which engages the apex of the pipe bend, very must be flat to a pressing of the To allow pipe bends 22 'between the pins and projections in a horizontal orientation.
  • the fully assembled pipe heater 20 is under a bending stress, which prevents rattling of the pipe heater due to vibrations occurring during operation of the refrigerator.

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)
  • Defrosting Systems (AREA)
  • Resistance Heating (AREA)

Abstract

La présente invention concerne un module évaporateur pour un appareil frigorifique sans givre comprenant un évaporateur (8), un système de chauffage tubulaire (20) et un boîtier (7) qui entoure l'évaporateur (8) et le système de chauffage tubulaire (20). Le système de chauffage tubulaire (20) comprend une pluralité de sections tubulaires parallèles (21) qui sont interconnectées les unes aux autres de façon à former une seule pièce. Le début et la fin du système de chauffage tubulaire (20) se trouvent au niveau de deux sections tubulaires parallèles immédiatement adjacentes (21).
PCT/EP2006/066167 2005-09-12 2006-09-08 Appareil frigorifique sans givre Ceased WO2007031470A2 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP06793352A EP1929218A2 (fr) 2005-09-12 2006-09-08 Appareil frigorifique sans givre
US11/991,901 US20090133427A1 (en) 2005-09-12 2006-09-08 No-Frost Cooling Device

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE202005014373.1 2005-09-12
DE202005014373U DE202005014373U1 (de) 2005-09-12 2005-09-12 No-Frost-Kältegerät

Publications (2)

Publication Number Publication Date
WO2007031470A2 true WO2007031470A2 (fr) 2007-03-22
WO2007031470A3 WO2007031470A3 (fr) 2007-05-03

Family

ID=35613246

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2006/066167 Ceased WO2007031470A2 (fr) 2005-09-12 2006-09-08 Appareil frigorifique sans givre

Country Status (6)

Country Link
US (1) US20090133427A1 (fr)
EP (1) EP1929218A2 (fr)
CN (1) CN101263352A (fr)
DE (1) DE202005014373U1 (fr)
RU (1) RU2411429C2 (fr)
WO (1) WO2007031470A2 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009074495A1 (fr) 2007-12-13 2009-06-18 BSH Bosch und Siemens Hausgeräte GmbH Appareil réfrigérant
US20110113824A1 (en) * 2008-07-07 2011-05-19 Husnu Kerpicci Evaporator

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006015994A1 (de) * 2006-04-05 2007-10-11 BSH Bosch und Siemens Hausgeräte GmbH Kältegerät mit Abtauheizung
ITVA20070010U1 (it) * 2007-02-16 2008-08-17 Whirlpool Co Frigorifero no-frost
CN101749910B (zh) * 2008-12-08 2012-02-08 博西华家用电器有限公司 冰箱
DE102009052048A1 (de) * 2009-11-05 2011-05-12 Liebherr-Hausgeräte Ochsenhausen GmbH Kühl- und/oder Gefriergerät
KR101103031B1 (ko) * 2010-07-13 2012-01-05 강연균 냉장 시약장
DE102011006248A1 (de) 2011-03-28 2012-10-04 BSH Bosch und Siemens Hausgeräte GmbH Kältegerät mit einer Heizvorrichtung
DE102011006862A1 (de) 2011-04-06 2012-10-11 BSH Bosch und Siemens Hausgeräte GmbH Verdampferbaugruppe für ein Kältegerät
DE102013204737A1 (de) * 2013-03-18 2014-09-18 BSH Bosch und Siemens Hausgeräte GmbH Kältegerät und Luftverteilerventil dafür
CN103353203A (zh) * 2013-05-31 2013-10-16 镇江天信电器有限公司 一种改良的化霜加热器的安装结构
JP6636699B2 (ja) * 2015-02-06 2020-01-29 ホシザキ株式会社 冷却貯蔵庫
DE102018201786A1 (de) * 2018-02-06 2019-08-08 BSH Hausgeräte GmbH Kältegerät mit Verdunstungsschale
CN111473593A (zh) 2019-01-23 2020-07-31 青岛海尔股份有限公司 加热装置及冰箱
CN115479409B (zh) * 2022-08-16 2025-03-18 浙江巨创不锈钢制品科技有限公司 一种制冷设备上使用的蒸发器
US20240361069A1 (en) * 2023-04-25 2024-10-31 Whirlpool Corporation Refrigerant system for an appliance

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DE1000836B (de) * 1954-07-31 1957-01-17 Andrew George Heron Vorrichtung zum Enteisen von Kuehleinrichtungen
US3393530A (en) * 1966-10-17 1968-07-23 Whirlpool Co Radiant defrost panel for refrigerator
US4709556A (en) * 1986-11-17 1987-12-01 Whirlpool Corporation Heat exchanger tube retainer for a refrigerator condenser
SU1421957A1 (ru) * 1987-04-20 1988-09-07 Белорусский институт механизации сельского хозяйства Оттаиватель испарител холодильной камеры
GB2251295B (en) * 1990-12-31 1994-09-28 Samsung Electronics Co Ltd Defrost assembly
DE9305184U1 (de) * 1993-04-05 1994-08-04 Licentia Patent-Verwaltungs-Gmbh, 60596 Frankfurt Abtauvorrichtung für Lamellenverdampfer von Haushalt-Umluft-Kühl- und Gefriergeräten
KR100431348B1 (ko) * 2002-03-20 2004-05-12 삼성전자주식회사 냉장고
DE10218826B4 (de) * 2002-04-26 2007-03-22 BSH Bosch und Siemens Hausgeräte GmbH Wärmetauscher für ein Kältegerät und Verfahren zur Herstellung eines Wärmetauschers
JP2004324943A (ja) * 2003-04-23 2004-11-18 Hitachi Home & Life Solutions Inc 冷蔵庫
JP2005134030A (ja) * 2003-10-30 2005-05-26 Matsushita Electric Ind Co Ltd 冷蔵庫

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009074495A1 (fr) 2007-12-13 2009-06-18 BSH Bosch und Siemens Hausgeräte GmbH Appareil réfrigérant
US20110113824A1 (en) * 2008-07-07 2011-05-19 Husnu Kerpicci Evaporator

Also Published As

Publication number Publication date
RU2411429C2 (ru) 2011-02-10
US20090133427A1 (en) 2009-05-28
WO2007031470A3 (fr) 2007-05-03
RU2008109817A (ru) 2009-10-20
CN101263352A (zh) 2008-09-10
DE202005014373U1 (de) 2006-01-05
EP1929218A2 (fr) 2008-06-11

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