WO2009103679A2 - Appareil frigorifique comportant un système de refroidissement à circulation d'air - Google Patents

Appareil frigorifique comportant un système de refroidissement à circulation d'air Download PDF

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Publication number
WO2009103679A2
WO2009103679A2 PCT/EP2009/051787 EP2009051787W WO2009103679A2 WO 2009103679 A2 WO2009103679 A2 WO 2009103679A2 EP 2009051787 W EP2009051787 W EP 2009051787W WO 2009103679 A2 WO2009103679 A2 WO 2009103679A2
Authority
WO
WIPO (PCT)
Prior art keywords
refrigerating appliance
refrigerated goods
appliance according
value
air
Prior art date
Application number
PCT/EP2009/051787
Other languages
German (de)
English (en)
Other versions
WO2009103679A3 (fr
Inventor
Hans Ihle
Holger Walliser
Original Assignee
BSH Bosch und Siemens Hausgeräte 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 Hausgeräte GmbH filed Critical BSH Bosch und Siemens Hausgeräte GmbH
Priority to EP09713401.9A priority Critical patent/EP2245395B1/fr
Priority to US12/865,742 priority patent/US20100319374A1/en
Priority to CN200980105825.7A priority patent/CN101946140B/zh
Priority to RU2010136857/13A priority patent/RU2485420C2/ru
Priority to PL09713401T priority patent/PL2245395T3/pl
Publication of WO2009103679A2 publication Critical patent/WO2009103679A2/fr
Publication of WO2009103679A3 publication Critical patent/WO2009103679A3/fr

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
    • 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
    • F25D17/06—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation
    • F25D17/062—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation in household refrigerators
    • F25D17/065—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation in household refrigerators with compartments at different temperatures
    • 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
    • F25D17/045—Air flow control arrangements
    • 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
    • F25D25/00—Charging, supporting, and discharging the articles to be cooled
    • F25D25/02—Charging, supporting, and discharging the articles to be cooled by shelves
    • F25D25/024—Slidable shelves
    • F25D25/025—Drawers
    • 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
    • F25D29/00—Arrangement or mounting of control or safety 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
    • 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
    • F25D2317/04—Treating air flowing to refrigeration compartments
    • F25D2317/041—Treating air flowing to refrigeration compartments by purification
    • F25D2317/0413—Treating air flowing to refrigeration compartments by purification by humidification
    • F25D2317/04131—Control means therefor
    • 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
    • F25D2317/061—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 through special compartments
    • 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

Definitions

  • the present invention relates to a refrigerator with an evaporator and at least one cooled by air circulation from and to the evaporator compartment.
  • a distribution chamber is formed adjacent to the compartment to be cooled, which is separated from the compartment by a perforated wall.
  • the holes may be covered by a nonwoven on the side of the distribution chamber to prevent a sharp jet of cold air from the distribution chamber from encountering and drying out sensitive items to be chilled in the compartment.
  • the slowed down by the diffusion layer air flow can cause condensation from the compartment is only insufficiently dissipated. So refrigerated goods can be moist in the tray, which is also not desirable.
  • the relationship between the amount of moisture in the compartment and the coverage of the holes by the mat is not immediately obvious to a user, as the amount of moisture that the user observes in the compartment is primarily related to the amount of moisture Type of refrigerated goods stored therein. The likelihood is therefore high that a user does not handle the fleece properly and does not set the appropriate refrigerated goods appropriate storage conditions.
  • Object of the present invention is to develop the known refrigeration device so that the likelihood of improper operation is reduced.
  • control unit is set up to request the specified value by offering the user various values of the circulation condition for selection.
  • control unit is set up to request the specified value by offering various types of refrigerated goods possibly accommodated in the storage compartment for selection and by means of a the type of item to be refrigerated specifies the user selecting a value of the circulation condition appropriate to the specified item to be refrigerated.
  • an allocation table is preferably stored in the control unit, which in each case assigns suitable values of the circulation condition to a set of types of refrigerated goods.
  • the control unit should be able to adequately respond to an input of the user specifying a plurality of types of refrigerated goods.
  • the circulation condition is a quantitative quantity, that is, can be expressed in numbers indicating a larger-smaller ratio
  • the control unit is preferably arranged to select a value of the circulation condition to be set at the control which is at least as large as the lowest one specified type of refrigerated goods associated value and not greater than the highest of a specified type of refrigerated goods assigned value.
  • a rule for selecting the value of the circulation condition to be set upon inputting plural kinds of refrigerated goods may be specified by the user.
  • the refrigerator may include a circulation path for circulating air from an evaporator to the storage compartment passing through a diffusion layer and a circulation path bypassing the diffusion layer.
  • an element is expediently provided as the control, the position of which influences the distribution of the circulated air to the two circulation paths.
  • air passage openings may be formed in a wall separating an air inflow area from the compartment, and a diffusion layer is displaceable by the motor between a first position covering the air passage openings and a second position bypassing an air flow through the air passage openings allows the diffusion layer.
  • the diffusion layer may be offset from the separating wall.
  • Fig. 1 is a perspective view of a refrigerator according to the invention
  • FIG. 2 shows a section through the refrigerator of FIG. 1 along the line II of FIG. 1;
  • Fig. 3 is a perspective view of the compartment and distribution chamber separating wall and fittings mounted thereon;
  • Fig. 6 is a plan view of a distribution chamber and compartment separating wall, as seen from the side of the distribution chamber, according to a second embodiment of the invention.
  • Fig. 7 is a section through the wall of Fig. 6;
  • FIG. 8 is a flowchart of a method for controlling air circulation through the distribution chamber.
  • Fig. 1 shows a perspective view obliquely from below of a refrigerator, at which the present invention is to be explained.
  • the interior of the body 1 is subdivided into a region 3 above the ceiling of the body 1, a first cooling area 4 and, separated therefrom by an insulating intermediate wall 5 second cooling area 6.
  • the second cooling area 6 is subdivided by juxtaposed pull-out boxes 7 into two compartments.
  • the first cooling area 4 is normally subdivided by several refrigerated goods carriers into superposed compartments. These refrigerated goods carriers are omitted in FIG. 1, since they have no significance for the present invention.
  • An air inlet opening 10 is formed on the front side of an intermediate wall 9 separating the evaporator region 3 from the first cooling region 4 (see FIG. 2), through which air can enter the evaporator region 3 from the first cooling region 4. Lines through which air can flow from the second cooling region 6 to the evaporator region 3 can-not visible in FIG. 1-extend in side walls of the body 1; Another possibility, indicated in FIG. 1, is an air duct 11 in the interior of the door 2, which begins at the level of the second cooling area 6 and ends opposite the air inlet opening 10, and whose course is indicated by dashed lines in the figure.
  • a distributor hood 12 Adjacent to the rear wall 8 of the body 1, a distributor hood 12 is attached to the intermediate wall 9, on which a plurality of air holes 13 is formed, through which cold air originating from the evaporator region 3 is distributed in various directions in the upper part of the first cooling area 4. Below the distributor hood 12 are located on the rear wall 8 a plurality of pairs of openings 14, from which also cold air flow out can. The height of these pairs of openings 14 is selected so that when refrigerated goods carriers are mounted in the first cooling area 4, each pair of openings 14 feeds a compartment delimited by the refrigerated goods carriers.
  • FIG. 2 shows the refrigeration device of FIG. 1 in a section along a plane extending vertically and in the depth direction of the body 1, which plane is shown in FIG. 1 by a dot-dash line II.
  • a dot-dash line II Inside the evaporator section 3 are in the
  • the intermediate wall 9 is for
  • Rear wall of the body 1 downhill to a channel 16, in which collects from the evaporator 15 dripping condensation. Via a pipe, not shown, the condensate reaches a in the base area 17 (see Fig. 1) of the body 1 housed evaporator.
  • a fan is housed, which comprises a motor 18, a paddle wheel 19 driven by the latter and a housing 20.
  • a housing 20 At the front of the housing 20, in the axial direction of the impeller 19, an intake opening is formed.
  • the upper half of the housing 20 extends in
  • a pivotable flap 22 is housed in this chamber 21 .
  • the flap 22 blocks a cold air supply opening 23, which leads vertically down to the first cooling area 4. The air is thus pushed towards the rear wall 8 and into a cold air supply path 24, which leads to the second cooling region 6 inside the rear wall 8, separated from the first cooling area 4 by a thin insulation layer 25.
  • the cold air supply path 24 leads to a distribution chamber 27 which extends in the intermediate wall 5, separated from the first cooling region 4 by an insulating layer, above the second cooling region 6. Between the distribution chamber 27 and the second cooling region 6, a horizontal septum 29 is arranged. It is provided with a multiplicity of openings 30 (see FIG. 3) via which the distribution chamber 27 is distributed in a large area over the supply path 24 and an air inlet opening 37 formed on a narrow side of the distribution chamber 27 into the cooling area 6 or accommodated therein, upwardly open pull-out boxes 7 occurs.
  • the septum 29 can be removably mounted in the body 1, for example by resting, as shown in Fig. 2, on projecting from the side walls of the body 1 webs 35.
  • the volume of the distribution chamber 27 can also be used to store refrigerated goods if necessary.
  • Fig. 3 shows a perspective view of the septum 29 seen from the direction of the distribution chamber 27. From the septum 29 protruding vertical webs 38 divide the distribution chamber 27 into two sub-chambers 27a, 27b, one of each above one of the two pull-out boxes 7 and the other above the other pull-out box 7 is located. In the right sub-chamber 27b a multi-perforated plate 40b is shown lying flat on the septum 29. Openings 31 of the plate 40b overlap each with the underlying openings 30 of the partition wall 29, so that the plate 40b does not obstruct the flow of air from the sub-chamber 27b into the drawer 7 located underneath.
  • the plates 40a, 40b are provided to support a flat air-permeable mat 50 (see FIG. 2), not shown in FIG. 3, which covers all the openings 31 of the plates 40a, 40b.
  • the web 50 provides in the position shown for the plate 40 b for a uniform distribution of the air to the openings 30 of the Separating wall 29 and for a slow, even air flow, which unfolds in the underlying tray or drawer 7 cooling effect, but at best only slightly drying out dehydrated.
  • the plates 40a, 40b are each attached to a free end of a two-armed pivoting lever 41a, 41b at its edge facing the rear wall 8 or the air inlet opening 37.
  • the pivot arms 41a, 41b are - controlled by a rotatably driven by an electric motor 39, described in more detail in connection with FIG.
  • control body 42 pivotable about an axis which runs approximately at the level of the door-side edges of the plates 40a, 40b parallel to these edges , If an opposite free end of the pivot lever 41 is depressed by the control body 42, as shown in the figure by the example of the left pivot arm 41a, so this is the associated plate, here the plate 40a, raised at its the air inlet opening 37 adjacent edge so that air from the inlet opening 37 flows into a space wedge-shaped tapering towards the door between the plate 40a and the partition wall 29 and flows through the openings 30 of the partition wall 29 into the pull-out box 7 underneath. Since in this case a damping of the air flow through the web 50 is eliminated, the flow rate in the underlying drawer 7 is higher than the lowered plate, so that the air supplied in the drawer 7 unfolds a much stronger drying effect.
  • Two sensors 54 are provided to detect the position of the rear wall-facing edges of the plates 40a, 40b, and to report them to a control circuit 56 (see FIG. 2) of the electric motor 39, raised or resting on the septum 29.
  • Fig. 3 shows the sensors 54 as separated from the septum 29, z. B. in the rear wall 8 of the refrigerator body 1 built-in elements that detect the position of the plates 40, 40 b through the air inlet opening 37 therethrough.
  • FIG. 4 shows a perspective view of the lower side of the control body 42 hidden in FIG. 3.
  • the control body 42 comprises a circular base plate 43, from which a non-circular bush 44 projects centrally, which is provided to rotate the shaft of a shaft, not shown, in FIG. 3 under the control body 2 hidden electric motor 39 (see Fig. 2 or Fig. 5) record.
  • Concentric to the socket 44 are at different Radii two ramps 45a, 45b arranged. Each of these ramps 45a, 45b is provided to cooperate with one of the two pivoting levers 41a, 41b engaging under the base plate.
  • the two ramps 45a, 45b each have a gently rising edge 46, a vertex portion 47 of constant height and a steeply sloping edge 48.
  • the two ramps 45a, 45b suitably angularly offset from each other, it can be achieved that there is a position of the control body 42 in which the pins 49 of both pivot levers 41a, 41b touch the base plate 43, a position in which a pin 49th the apex portion 47 of the ramp 45a contacts while the other pin 49 contacts the base plate 43, a position in which both pins 49 contact the apex portion 47 of the ramp 45a and 45b associated therewith, and a position in which a pin 49 engages the apex portion the ramp 45b touches while the other touches the base plate 43.
  • the positions follow one another in one rotation of the control body 42 in the stated sequence.
  • the direction of rotation of the motor 39 is selected so that the pins 49 each slide along the gentle flanks 46 to the apex portion 47 and then fall back along the steep flanks 48 to the base plate 43.
  • the flanks 48 steep, on the one hand the angular intervals in which one of the four positions is present can be made large, so that only a low accuracy in the control of the angle of rotation of the control body 42 is required, while on the other hand the gentle slope of the flanks 46 the sliding of the pins 49 on the ramps 45a, 45b and the associated lifting of the plates 40 is facilitated.
  • FIG. 6 A second embodiment of the partition wall 29 and parts mounted on it is shown in Fig. 6 in a plan view and in Fig. 7 in a section along the line VII-VII of Fig. 6.
  • the septum 29 has a plurality of air passage openings 30, and a nonwoven 50 (see Fig. 6) supporting plate 40a and 40b, as in Fig. 6 using the example of the left plate 40a shown occupy a flat on the septum 29 resting position in the Openings 31 of the plate 40a with which the septum 29 are aligned.
  • rising ramps 53 are formed toward the rear wall 8. From the plates 40a, 40b projecting pins 51 are at the left plate 40a respectively at the bottom of the ramps 53rd
  • rotatable control body 42 each comprise a base plate 43 and an eccentric projection protruding therefrom, here in the form of a circular sector-shaped rib 52. If by rotation of the control body 42, the rib 52 presses against the plate 40a or 40b, As shown by the example of the right-hand plate 40b in FIG. 6, this is pushed back in the direction of the air inlet opening 37, wherein the pins 51 slide up on the ramps 53 and thereby lift the plate 40. The result is a gap between the plate 40 and the septum 29, through which air from the air inlet opening 37 can go directly to the openings 30 of the partition wall 29, without their flow is damped by the web 50. The effects obtained thereby are the same as in the above-described embodiment.
  • the ramps 53 are each movable between the position shown in FIG. 7 on the partition 29 and a parked position, in each of which only the air inlet opening 37 adjacent edge of a plate 40a, 40b of the septum 29th is lifted, while the door near edge of the plate continues to rests.
  • the rotatable control bodies 42 may be replaced by linearly displaceable ramps, or other drive mechanisms for moving the plates 40a, 40b may be provided.
  • a user interface 55 is provided at which a user - e.g. by selecting from a menu displayed - the type of chilled goods stored in each drawer can specify and an electronic control circuit 56 selects and adjusts the appropriate position of the plates 40a, 40b for each refrigerated goods by means of an allocation table.
  • FIG. 8 shows a flow chart of a control process taking place in the control circuit 56 of the electric motor 39.
  • a user is given the opportunity to enter the type or types of refrigerated goods stored in the compartments 7 on the user interface 55.
  • Fig. 1 shows this user interface with a display screen and a plurality of keys, selector switches or the like. At the front edge of a cover plate of the body 1; Of course, it can also be installed at any other suitable location.
  • the input is made, for example, by selecting a user for each one of the trays 7 under pictograms displayed on the display screen, or designations of various types of items to be refrigerated, the one or the ones stowed in the respective tray 7 by means of the keys or selector switches.
  • step S2 the control circuit 56 determines, based on the specified content for each compartment 7, a desired position of the tray 40a and 40b corresponding to the compartment. This is done by querying a table stored in the control circuit 56, which specifies a plate nominal position for each type of refrigerated goods offered for selection by the user in step S1. In the simplest case, this nominal position has either the value 0 or the value 1, corresponding to a flat or a fully raised plate. However, intermediate values of the plate position can also be specified in the table.
  • the reference position specified for the compartment corresponds to that specified in the table for this refrigerated goods Position.
  • the target position for the compartment may be an average of the setpoint values applicable to the types of refrigerated goods contained, the highest or the lowest of these setpoints. Which of these three alternatives is chosen, may depend on the type of specified refrigerated goods, for example, if loose leafy vegetables is specified, its setpoint can be selected as a target position of the plate, since this chilled quickly deteriorates at higher dehydration, while for other types of Refrigerated an average value is calculated. In each case, a two-digit value in the interval [0, 1], one for each compartment 7, is obtained as the nominal position.
  • step S3 the desired positions thus obtained are compared with a switching threshold.
  • the switching threshold can be a constant, for. B. 0.5, be. If the desired position is above, then it is decided that the plate concerned should be raised; if it is below, then the plate should be lowered. If the sensors 54 report that both plates 40a, 40b are already in the desired position determined for them, then the motor 39 remains off, and the method proceeds to step S4, where the fan is operated to supply cold air between the evaporator section 3 and the cooling area 6 to circulate.
  • control circuit activates the motor 39 until either the sensors 54 in step S5
  • step S6 a maximum allowable operating time of the motor 39 is exceeded. If the latter is the case, there is a fault, z. B. because one of the plates 40a, 40b is frozen to the septum 29 and therefore the rotation of the control body 42 is blocked, and the disturbance is signaled to the user on the display screen of the user interface 55.
  • the step S3 is periodically repeated even after receiving the fan operation in step S4 of the control circuit 56, as indicated by a dashed arrow in Fig. 8,
  • the switching threshold is not a constant, but a sawtooth between 0 and 1 varying function of Time
  • the control circuit 56 decides that the plate 40a or 40b should be raised when its nominal position is below the switching threshold and should be lowered when the nominal position is above the switching threshold. So, while the blower is in operation is, the plates 40, 40b periodically switched, and the proportion of time they spend in the raised position, at the operating time of the blower is proportional to the specified for them in step S2 target position.

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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)
  • Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)
  • Defrosting Systems (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)

Abstract

L'invention concerne un appareil frigorifique comportant au moins un compartiment (7) refroidi par circulation d'air et un élément de commande mobile (40a, 40b) destiné à commander une condition de circulation de l'air dans le compartiment (7). Un moteur (39) est prévu pour déplacer l'élément de commande (40a, 40b). Une unité de commande (56) est conçue pour régler une position de l'élément de commande (40a, 40b) au moyen du moteur (39) en fonction d'une valeur de la condition de circulation définie par l'utilisateur.
PCT/EP2009/051787 2008-02-22 2009-02-16 Appareil frigorifique comportant un système de refroidissement à circulation d'air WO2009103679A2 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
EP09713401.9A EP2245395B1 (fr) 2008-02-22 2009-02-16 Appareil frigorifique comportant un système de refroidissement à circulation d'air
US12/865,742 US20100319374A1 (en) 2008-02-22 2009-02-16 Refrigerating appliance comprising a no-frost system
CN200980105825.7A CN101946140B (zh) 2008-02-22 2009-02-16 包括除霜系统的制冷器具
RU2010136857/13A RU2485420C2 (ru) 2008-02-22 2009-02-16 Холодильный аппарат без намерзания инея
PL09713401T PL2245395T3 (pl) 2008-02-22 2009-02-16 Urządzenie chłodnicze z chłodzeniem recyrkulacyjnym

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102008010520A DE102008010520A1 (de) 2008-02-22 2008-02-22 Kältegerät mit Umluftkühlung
DE102008010520.1 2008-02-22

Publications (2)

Publication Number Publication Date
WO2009103679A2 true WO2009103679A2 (fr) 2009-08-27
WO2009103679A3 WO2009103679A3 (fr) 2009-10-29

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2009/051787 WO2009103679A2 (fr) 2008-02-22 2009-02-16 Appareil frigorifique comportant un système de refroidissement à circulation d'air

Country Status (7)

Country Link
US (1) US20100319374A1 (fr)
EP (1) EP2245395B1 (fr)
CN (1) CN101946140B (fr)
DE (1) DE102008010520A1 (fr)
PL (1) PL2245395T3 (fr)
RU (1) RU2485420C2 (fr)
WO (1) WO2009103679A2 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011026750A3 (fr) * 2009-09-02 2011-08-18 BSH Bosch und Siemens Hausgeräte GmbH Appareil de froid pourvu d'un bac à légumes
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WO2011026750A3 (fr) * 2009-09-02 2011-08-18 BSH Bosch und Siemens Hausgeräte GmbH Appareil de froid pourvu d'un bac à légumes
CN102667374A (zh) * 2009-09-02 2012-09-12 Bsh博世和西门子家用电器有限公司 具有蔬菜容器的制冷装置
EP2567163B1 (fr) * 2010-05-04 2019-11-06 BSH Hausgeräte GmbH Réfrigérateur avec ventilation forcée
WO2014206815A1 (fr) * 2013-06-27 2014-12-31 BSH Bosch und Siemens Hausgeräte GmbH Appareil ménager de froid pourvu d'un contenant de conservation au frais dans un espace intérieur, lequel comprend un couvercle pouvant être levé et baissé au moyen d'un élément de commande rotatif
WO2014206809A1 (fr) * 2013-06-27 2014-12-31 BSH Bosch und Siemens Hausgeräte GmbH Appareil de froid ménager pourvu d'un espace intérieur et d'un contenant de conservation au frais pourvu d'un couvercle présentant une glissière ouverte vers l'avant
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WO2015082274A1 (fr) * 2013-12-06 2015-06-11 BSH Hausgeräte GmbH Réfrigérateur domestique comportant une cloison disposée au-dessus d'un contenant de conservation et une unité d'affichage

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RU2485420C2 (ru) 2013-06-20
CN101946140A (zh) 2011-01-12
WO2009103679A3 (fr) 2009-10-29
US20100319374A1 (en) 2010-12-23
CN101946140B (zh) 2014-04-16
EP2245395B1 (fr) 2017-09-27
EP2245395A2 (fr) 2010-11-03
DE102008010520A1 (de) 2009-09-03
PL2245395T3 (pl) 2018-03-30
RU2010136857A (ru) 2012-03-27

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