EP2059737B1 - Appareil frigorifique comportant une soupape de compensation de pression - Google Patents

Appareil frigorifique comportant une soupape de compensation de pression Download PDF

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Publication number
EP2059737B1
EP2059737B1 EP07788144A EP07788144A EP2059737B1 EP 2059737 B1 EP2059737 B1 EP 2059737B1 EP 07788144 A EP07788144 A EP 07788144A EP 07788144 A EP07788144 A EP 07788144A EP 2059737 B1 EP2059737 B1 EP 2059737B1
Authority
EP
European Patent Office
Prior art keywords
passage
groove
door
refrigerating appliance
wall
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.)
Active
Application number
EP07788144A
Other languages
German (de)
English (en)
Other versions
EP2059737A2 (fr
Inventor
Jürgen DIEBOLD
Karl-Friedrich Laible
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
Publication of EP2059737A2 publication Critical patent/EP2059737A2/fr
Application granted granted Critical
Publication of EP2059737B1 publication Critical patent/EP2059737B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
    • F25D17/04—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
    • F25D17/042—Air treating means within refrigerated spaces
    • F25D17/047—Pressure equalising devices
    • 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
    • F25D23/08—Parts formed wholly or mainly of plastics materials
    • F25D23/082—Strips
    • F25D23/087—Sealing strips

Definitions

  • the present invention relates to a refrigeration device such as a refrigerator or freezer with a pressure compensation valve, which serves to prevent the formation of a negative pressure in the interior of the refrigerator.
  • Such door opening mechanisms necessarily include moving parts that are subjected to considerable forces during operation, such that wear and interference may occur.
  • a pressure compensation valve which in the case of in the interior prevailing negative pressure air from the outside to the inside can and locks, as soon as the pressure between the environment and the interior is balanced, so that an uncontrolled entry of heat and moisture is excluded in the interior.
  • a refrigerator according to the preamble of claim 1 is made US 3,167,931 known.
  • the object of the invention is therefore to provide a refrigeration device with a pressure compensation valve between the interior and the environment, in which eliminates the risk of freezing of the pressure compensation valve or at least reduced.
  • the object is achieved in that parallel to the pressure compensating valve, a passage permeable in two directions is formed in a wall of the housing whose conductance is smaller than that of the pressure compensating valve in its passage direction, but greater than the leakage value of the pressure compensating valve in its reverse direction.
  • the conductance of the passage is chosen sufficiently low, it is ensured that it does not come through the passage to a substantial exchange of air between the environment and the interior of the refrigerator, by the latter is undesirable burdened with heat and moisture.
  • the passage allows low flow rate airflows caused by the periodic cooling and heating of the internal space due to the intermittent operation of a refrigerator to flow over the passage and not over the balance valve. It has surprisingly been found that the freezing of the pressure compensation valve usually does not go back to air flows, which flow respectively after closing the door by the pressure compensation valve, but that this much slower air flows are relevant.
  • the temperature of the interior of the refrigerator is, even if the door remains closed, not exactly constant, but it varies periodically, and each cooling is associated with an influx of air into the interior, while in a warming air flows, ie it can be pictorial of a "inhalation” and "exhalation” of the refrigerator are spoken. While at a pressure equalization after door closing the air flows quickly through the pressure balance valve and moisture contained in it has little opportunity At the valve, the inflow is significantly slower, so that the incoming air already cools in the pressure balance valve and its moisture settles in it, with the result that the valve loses its mobility and clogs.
  • the passage extends on a curved path through the wall.
  • Such a curved passage may also be substantially longer than the thickness of the wall through which it passes, so that there is a large surface area available in the passage on which moisture from the inhaled air can be deposited. This reduces the likelihood that precipitated moisture will fill the cross-section of the passage and obstruct the flow of air.
  • the passage extends in a substantially frost-free region of the housing. Since conventionally, a heater is often mounted on a front side of the body to prevent the door from freezing on the body, the passage is advantageously arranged in a region of the housing which is heated by this heater.
  • the passage advantageously extends between the walls of the groove and an anchoring portion of the sealing profile engaging in the groove.
  • each groove transverse to the longitudinal direction of the groove is recessed into side walls of the groove.
  • a portion of the passage is guided in the longitudinal direction of the groove. This section can be created without any effort if it is limited on the one hand by a wall of the groove and on the other hand by the sealing profile.
  • this rib is preferably locally interrupted to form the passage.
  • At least one end of the passage is located at a corner of the door since the corners are generally the warmest areas of the door.
  • Fig. 1 is a schematic perspective view of a refrigerator with a body 1 and a battered door 2, which enclose a cooled interior 3.
  • a magnetic seal 4 is mounted in a conventional manner, which rests tightly in the closed position of the door 2 on a front side 5 of the body 1.
  • the front side 5 is heated by a not visible in the figure, in the interior of the body 1 adjacent to the front 5 around the interior 3 extending refrigerant line, which is connected between the pressure outlet of a compressor and a condenser and, while the compressor operates, of warm Refrigerant is flowed through.
  • a pressure compensation valve is mounted in a formed in the lower part of the door 2 opening 6.
  • An example of a possible structure of the pressure compensation valve is in Fig. 2 shown, which shows a perspective longitudinal section through the pressure compensation valve 7.
  • Fig. 2 shows a perspective longitudinal section through the pressure compensation valve 7.
  • a held inside the sleeve 11 under bending stress membrane 12 has on the walls of the sleeve 11 tightly fitting edges and is held by a transversely through the interior of the sleeve 11 extending intermediate wall 13 and a cap part 14 in position.
  • Fig. 3 is a perspective view of a lower corner of the inner wall 10 and attached to the inner wall 10 magnetic seal 4.
  • the magnetic seal 4 is a flexible extrusion profile with a plurality of longitudinal chambers, one of which contains a magnetic tape 16 which is provided to the magnetic seal 4th firmly against the ferromagnetic front side 5 of the body 1 to press.
  • two projections 17, 18 are formed, one of which, 17, barbed.
  • the projections 17, 18 engage in a groove 19 of the inner wall 10, which is divided by an extending in the longitudinal direction of the groove 19 rib 20 in an inner and an outer portion 21, 22.
  • the barbs of the projection 17 are latched to undercuts of the inner portion 21.
  • a in the width direction of the magnetic seal 4 extending, in the section 22 in bulging transverse wall 23 is held by the latch in a bending-loaded position in which it keeps the projection 18 pressed into the outer portion 22 of the groove 19.
  • a thin, flexible wall portion 24 of the magnetic seal 4 is bent inwardly by an edge of the outer portion 22, so that the wall portion 24 is substantially close to this edge.
  • a lip 25 is formed, which is pressed by the latching of the projection 17 tightly against an adjacent to the inner portion 21 shoulder 26 of the inner wall 10.
  • the wall portion 24, the lip 25 and the barbs of the projection 17 form a plurality of sealing lines between the inner wall 10 and the magnetic seal 4th
  • these sealing lines do not extend over the entire length of the magnetic seal 4, but they are interrupted at the corner of the door 2 shown by a passage 15.
  • the passage 15 is formed by a recess on the inner wall 10 is tightened at the location of the meeting of a horizontal and a vertical portion of the groove 19.
  • Fig. 4 which cuts through the inner wall 10 and the magnetic seal 4 along the in Fig. 3 with IV indicated plane, an outer contour 28 of this depression is visible.
  • Fig. 5 shows a section along the inclined at 45 ° to the horizontal, in Fig. 3 with V designated cutting plane.
  • the section plane runs along the passage 15, and it can be seen that along this section plane neither the wall section 24 nor the barbs or the lip 25 touch the inner wall 10.
  • FIG. 6 is like Fig. 2 a perspective view of a corner of the inner wall 10, wherein the groove 19 of the inner wall 10 is shown equipped only on a part of its length with the magnetic seal 4 to a in the sections 21, 22 of the groove 19 separating rib 20 cutout 30 show to be able to.
  • the cross sections of the groove 19 and the magnetic seal are the same as in the embodiment of Fig. 1 to 5 , How to use the Fig. 5 analog section of the Fig. 7 can be seen, the passage 15 is interrupted by the rib 20 in the sectional plane of this figure. However, as based on Fig.

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)
  • Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)
  • Sampling And Sample Adjustment (AREA)

Claims (9)

  1. Appareil frigorifique avec une carcasse entourant un espace intérieur (3) réfrigéré, qui présente un corps (1) et une porte (2), et une soupape de compensation de pression (7) qui s'étend au travers d'une paroi de la carcasse (1, 2) afin de permettre un afflux d'air de l'environnement dans l'espace intérieur (3) et de bloquer l'écoulement d'air hors de l'espace intérieur (3), caractérisé en ce qu'un passage (15) perméable dans deux directions est formé parallèlement à la soupape de compensation de pression (7) dans une paroi de la carcasse, dont la conductance est inférieure à celle de la soupape de compensation de pression dans le sens passant et est supérieure à la conductance de fuite de la soupape de compensation de pression (7) dans le sens de verrouillage.
  2. Appareil frigorifique selon la revendication 1, caractérisé en ce que le passage (15) s'étend sur un tracé courbé au travers de la paroi.
  3. Appareil frigorifique selon la revendication 1 ou 2, caractérisé en ce que le passage (15) se trouve en contact thermoconducteur avec un chauffage.
  4. Appareil frigorifique selon l'une des revendications 1 à 3, caractérisé en ce que le chauffage est apposé sur une face frontale (5) du corps (1) et en ce que le passage (15) s'étend dans une zone de la carcasse (1, 2) chauffée par le chauffage.
  5. Appareil frigorifique selon l'une des revendications 1 à 4, caractérisé en ce qu'un profilé d'étanchéité (4) qui étanchéifie un entrebâillement entre la porte (2) et le corps (1) est ancré dans une rainure (19) de la porte (2) et en ce que le passage (15) s'étend entre les parois de la rainure (19) et une section d'ancrage (17) du profilé d'étanchéité (4) qui s'enclenche dans la rainure (19).
  6. Appareil frigorifique selon la revendication 5, caractérisé en ce que le passage (15) comprend au moins une section (31, 32) qui s'étend dans le sens longitudinal de la rainure.
  7. Appareil frigorifique selon la revendication 5 ou 6, caractérisé en ce qu'une cannelure (33, 34) orientée transversalement par rapport au sens longitudinal de la rainure (19) est respectivement creusée dans les parois latérales de la rainure (19).
  8. Appareil frigorifique selon l'une des revendications 5 à 7, caractérisé en ce que la rainure (19) est divisée transversalement par une côte (20) qui s'enclenche dans un canal longitudinal du profilé d'étanchéité (4), et en ce que la côte (20) est interrompue localement afin de constituer le passage (30).
  9. Appareil frigorifique selon l'une des revendications 5 à 8, caractérisé en ce qu'au moins une extrémité du passage (15) est disposée sur un coin de la porte (2).
EP07788144A 2006-08-29 2007-08-01 Appareil frigorifique comportant une soupape de compensation de pression Active EP2059737B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE202006013229U DE202006013229U1 (de) 2006-08-29 2006-08-29 Kältegerät mit Druckausgleichsventil
PCT/EP2007/057979 WO2008025637A2 (fr) 2006-08-29 2007-08-01 Appareil frigorifique comportant une soupape de compensation de pression

Publications (2)

Publication Number Publication Date
EP2059737A2 EP2059737A2 (fr) 2009-05-20
EP2059737B1 true EP2059737B1 (fr) 2009-12-30

Family

ID=37388308

Family Applications (2)

Application Number Title Priority Date Filing Date
EP06793153A Withdrawn EP2059736A1 (fr) 2006-08-29 2006-09-01 Appareil réfrigérant comprenant une ouverture à compensation de pression
EP07788144A Active EP2059737B1 (fr) 2006-08-29 2007-08-01 Appareil frigorifique comportant une soupape de compensation de pression

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP06793153A Withdrawn EP2059736A1 (fr) 2006-08-29 2006-09-01 Appareil réfrigérant comprenant une ouverture à compensation de pression

Country Status (8)

Country Link
US (2) US20090320515A1 (fr)
EP (2) EP2059736A1 (fr)
CN (1) CN101512265B (fr)
AT (1) ATE453844T1 (fr)
DE (2) DE202006013229U1 (fr)
ES (1) ES2336965T3 (fr)
RU (2) RU2402723C1 (fr)
WO (2) WO2008025378A1 (fr)

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EP2597403A2 (fr) 2011-11-22 2013-05-29 Indesit Company Beyaz Esya Sanayi ve Ticaret Anonim Sirketi Mécanisme d'équilibrage de pression

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2597403A2 (fr) 2011-11-22 2013-05-29 Indesit Company Beyaz Esya Sanayi ve Ticaret Anonim Sirketi Mécanisme d'équilibrage de pression

Also Published As

Publication number Publication date
ATE453844T1 (de) 2010-01-15
CN101512265B (zh) 2011-10-05
EP2059737A2 (fr) 2009-05-20
EP2059736A1 (fr) 2009-05-20
RU2411427C2 (ru) 2011-02-10
RU2009107850A (ru) 2010-10-10
WO2008025637A2 (fr) 2008-03-06
DE502007002507D1 (de) 2010-02-11
US8099974B2 (en) 2012-01-24
WO2008025637A3 (fr) 2008-05-29
US20090320515A1 (en) 2009-12-31
WO2008025378A1 (fr) 2008-03-06
ES2336965T3 (es) 2010-04-19
DE202006013229U1 (de) 2006-10-26
RU2402723C1 (ru) 2010-10-27
CN101512265A (zh) 2009-08-19
US20090241585A1 (en) 2009-10-01

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