EP2245395B1 - 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
EP2245395B1
EP2245395B1 EP09713401.9A EP09713401A EP2245395B1 EP 2245395 B1 EP2245395 B1 EP 2245395B1 EP 09713401 A EP09713401 A EP 09713401A EP 2245395 B1 EP2245395 B1 EP 2245395B1
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EP
European Patent Office
Prior art keywords
refrigerating appliance
appliance according
specified
value
air
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
EP09713401.9A
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German (de)
English (en)
Other versions
EP2245395A2 (fr
Inventor
Hans Ihle
Holger Walliser
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 Hausgeraete GmbH
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Filing date
Publication date
Application filed by BSH Hausgeraete GmbH filed Critical BSH Hausgeraete GmbH
Priority to PL09713401T priority Critical patent/PL2245395T3/pl
Publication of EP2245395A2 publication Critical patent/EP2245395A2/fr
Application granted granted Critical
Publication of EP2245395B1 publication Critical patent/EP2245395B1/fr
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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
    • F25D17/06—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.
  • A1 known refrigerator of this type is adjacent to the compartment to be cooled, a distribution chamber formed, 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 due 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.
  • the patent US 5,357,765 shows a refrigeration device with a cooling compartment and a freezer, each having an inlet opening for an air flow.
  • the air flow is controlled as a function of measured temperatures, wherein assignment values for a measured temperature are stored in a data memory of the refrigeration device, with which the air flow is controlled.
  • the patent US 4,513,579 shows how air is filtered for a freezer compartment, so that a moisture content of the air decreases in order to avoid ice formation in the freezer compartment.
  • the patent WO 01/48431 A1 discloses a refrigeration device wherein the control unit is set up to offer the types of refrigerated goods possibly accommodated in the storage compartment for selection.
  • the publication US 2003/0010056 A1 shows a refrigerator with a vegetable compartment, which is sealed against air flow.
  • Object of the present invention is to develop the known refrigeration device so that the likelihood of improper operation is reduced.
  • the object is achieved with the features of claim 1: Since the user can specify the desired circulation condition, in particular the degree of dehumidification of the subject content directly, he need not know the relationship between the position of the control and the resulting circulation conditions. In this case, the default of the user is usually based on an empirically determined value stored in a data store, however, the user may also change this value and store the changed value in another data store or overwrite the predetermined value with the changed value.
  • 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 shows a perspective view obliquely from below of a refrigerator, at which the present invention is to be explained.
  • the device has a body 1 and a door 2 attached thereto.
  • the interior of the body 1 is subdivided into an evaporator region 3 at the top under the ceiling of the body 1, a first cooling region 4 and, separated therefrom by an insulating intermediate wall 5, a second cooling region 6.
  • the second cooling area 6 is divided by juxtaposed pull-out boxes 7 in two compartments.
  • the first cooling area 4 is normally subdivided by several refrigerated goods carriers into superposed compartments. These refrigerated goods are in the Fig. 1 omitted since they have no meaning for the present invention.
  • an air inlet opening 10 is formed through which air from the first cooling area 4 can enter the evaporator area 3.
  • Lines through which air can flow from the second cooling region 6 to the evaporator region 3 can - in the Fig. 1 not visible - run in side walls of the body 1; another, in the Fig.1 indicated possible 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 in the figure by dashed lines.
  • 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 refrigerator the Fig. 1 in a section along a vertically and in the depth direction of the body 1 extending plane, the in Fig. 1 is shown by a dashed line II.
  • cooling coils of an evaporator 15 can be seen in the section, which are flowed through by the air entering through the air inlet opening 10.
  • the intermediate wall 9 is down to the rear wall of the body 1 down to a channel 16, in which collects from the evaporator 15 dripping condensate. Via a pipe, not shown, the condensation reaches a in the base area 17 (see Fig. 1 ) of the body 1 accommodated 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 circumferentially closely around the paddle wheel 19; downwardly, the housing 20 is open, so that by a rotation of the impeller 19 radially outwardly accelerated air flows down into a chamber 21.
  • 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 flap 22 hinged to an intermediate wall 26 between the cold air supply port 23 and the cold air supply line 24 is brought into a vertical position shown in the figure as a dotted outline, it obstructs the cold air supply path 24 and the cold air flow reaches the distributor hood 12 through the cold air supply port 23 the cut of the Fig. 2 one of the air holes 13 can be seen, through which air flows out of the distributor hood 12 into the first cooling region 4.
  • 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 equipped with a variety of openings 30 (see Fig. 3 ), over which the distribution chamber 27 via the supply path 24 and an air inlet opening 37 formed on a narrow side of the distribution chamber 27 supplied cold air distributed over a large area in the cooling area 6 and housed therein, upwardly open pull-out boxes 7 occurs.
  • the septum 29 may be removably mounted in the body 1, for example by placing it as in Fig. 2 shown rests on protruding from the side walls of the body 1 webs 35. Thus, by removing the septum 29, 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 lies. 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 40 a, 40 b are provided to each one in the Fig. 3 not shown, flat-lying air-permeable fabric 50 (see Fig. 2 ), 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 one of an electric motor 39 rotatably driven, in conjunction with Fig. 4 More precisely described 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.
  • Two sensors 54 are provided to detect the position-raised or resting on the septum 29-of the rear wall-facing edges of the plates 40a, 40b and to a control circuit 56 (see FIG Fig. 2 ) of the electric motor 39.
  • Fig. 3 shows the sensors 54 as separated from the septum 29, z. B. incorporated in the rear wall 8 of the refrigerator body 1 elements that detect the position of the plates 40 a, 40 b through the air inlet opening 37 therethrough.
  • Fig. 4 shows a perspective view of the in Fig. 3
  • the control body 42 includes a circular base plate 43, from which centrally a non-circular bushing 44 projects, which is provided to the shaft of a, not shown, in Fig. 3 under the control body 2 hidden electric motor 39 (see Fig. 2 or Fig. 5 ).
  • 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 peak portion 47 of constant height and a steeply sloping edge 48.
  • a gently rising edge 46 As in the section of Fig.
  • the two ramps 45a, 45b are 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 49 the Vertex portion 47 of the ramp 45a touches, while the other pin 49 contacts the base plate 43, a position in which both pins 49 touch the apex portion 47 of its associated ramp 45a and 45b, and a position in which a pin 49, the apex portion of 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 rotation angle 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 in Fig. 6 in a plan view and in Fig. 7 in a section along the line VII-VII Fig. 6 shown.
  • the septum 29 has a plurality of air passage openings 30, and a nonwoven 50 (see Fig. 6 ) carrying plate 40a and 40b can, as in Fig. 6 taking the example of the left plate 40a, assume 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 in the example of the right-hand plate 40b in FIG Fig. 6 shown, 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.
  • a user interface 55 is provided at which a user - e.g. by selecting from a displayed menu - 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 the respective chilled goods by means of an allocation table.
  • Fig. 8 shows a flowchart of a running in the control circuit 56 of the electric motor 39 control method.
  • 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 a target position of the tray corresponding to the tray 40a and 40b based on the specified content for each compartment 7. This is done by querying a table stored in the control circuit 56, which indicates a target plate 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.
  • the control circuit activates the motor 39 until either the sensors 54 signal the reaching of the nominal position in step S5, or it is determined in step S6 that a maximum permissible 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 repeated periodically even after the start of the fan operation in step S4 by the control circuit 56, as indicated by a dashed arrow in Fig. 8 indicated, the switching threshold is not a constant, but a sawtooth between 0 and 1 varying function of time, and 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 Target position is above the switching threshold. So, while the blower is in operation is, the plates 40a, 40b periodically switched, and the proportion of time they spend in the raised position, the operating time of the blower is proportional to the set 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)

Claims (11)

  1. Appareil frigorifique avec au moins un compartiment de stockage réfrigéré par circulation d'air (7), dans lequel au moins une valeur d'affectation est enregistrée dans une mémoire de données de l'appareil frigorifique, laquelle affecte au moins pour un type de denrées à réfrigérer une valeur appropriée de la condition de circulation, une unité de commande (56) étant aménagée afin de demander la valeur spécifiée (S1) en proposant à la sélection différents types de denrées à réfrigérer potentiellement placées dans le compartiment de stockage et en sélectionnant, au moyen d'une saisie de l'utilisateur spécifiant le type de denrées à réfrigérer, une valeur appropriée de la condition de circulation (S2) pour les denrées à réfrigérer spécifiées, caractérisé par une plaque mobile (40a, 40b) pour le pilotage d'au moins une condition de circulation de la circulation d'air dans le compartiment de stockage (7), dans lequel un moteur (39) est prévu afin de déplacer la plaque (40a, 40b) et l'unité de commande (56) est aménagée afin de régler (S3) via le moteur (39) un positionnement de la plaque (40a, 40b) selon une valeur de la condition de circulation spécifiée par un utilisateur.
  2. Appareil frigorifique selon la revendication 1, caractérisé en ce que la mémoire de données est prévue dans l'unité de commande (56) et un tableau d'affectation y est enregistré, lequel affecte à une quantité de types de denrées à réfrigérer respectivement des valeurs appropriées de la condition de circulation.
  3. Appareil frigorifique selon la revendication 2, caractérisé en ce que la condition de circulation est une grandeur quantitative et en ce que l'unité de commande (56) est aménagée afin de sélectionner (S2), suite à une saisie de l'utilisateur spécifiant plusieurs types de denrées à réfrigérer, une valeur de la condition de circulation à régler sur la plaque (40a, 40b), laquelle valeur est au moins aussi grande que la plus faible valeur affectée à un type de denrées à réfrigérer indiqué et pas supérieure à la valeur la plus élevée affectée à un type de denrées à réfrigérer indiqué.
  4. Appareil frigorifique selon la revendication 3, caractérisé en ce qu'une règle est sélectionnable parmi au moins deux des suivantes :
    - sélection de la valeur la plus faible respective affectée à un type de denrées à réfrigérer indiqué,
    - sélection de la valeur la plus élevée respective affectée à un type de denrées à réfrigérer indiqué,
    - établissement d'une valeur moyenne parmi les valeurs affectées aux types de denrées à réfrigérer indiqués.
  5. Appareil frigorifique selon la revendication 4, caractérisé en ce que la sélection de la règle peut être entreprise par l'utilisateur.
  6. Appareil frigorifique selon la revendication 4, caractérisé en ce que l'unité de commande (56) est aménagée afin de sélectionner la règle à l'aide d'un type de denrées à réfrigérer indiqué.
  7. Appareil frigorifique selon l'une des revendications 1 à 6, caractérisé en ce que l'unité de commande (56) est aménagée afin de demander la valeur spécifiée en proposant à la sélection de l'utilisateur différentes valeurs de la condition de circulation.
  8. Appareil frigorifique selon l'une des revendications précédentes, caractérisé en ce que la condition de circulation est le degré d'humidité de l'air circulant.
  9. Appareil frigorifique selon l'une des revendications précédentes, caractérisé en ce qu'il englobe une voie de circulation (24, 27) pour l'air circulant d'un évaporateur (3) vers le compartiment de stockage (7), lequel s'étend à travers une couche de diffusion (50), et une voie de circulation (24, 27) qui contourne la couche de diffusion (50), et en ce que le positionnement de la plaque (40a, 40b) influence la répartition de l'air circulant sur les deux voies de circulation.
  10. Appareil frigorifique selon l'une des revendications précédentes, caractérisé en ce que des orifices de passage d'air (30) sont constitués dans une paroi (29) séparant une zone d'afflux d'air (27) du compartiment de stockage (7) et en ce qu'une couche de diffusion (50) est déplaçable par le moteur (39) entre une première position dans laquelle elle couvre les orifices de passage d'air (30) et une deuxième position dans laquelle elle permet un écoulement d'air à travers les orifices de passage d'air (30) en contournant la couche de diffusion (50).
  11. Appareil frigorifique selon la revendication 11, caractérisé en ce que la couche de diffusion (50) est écartée de la paroi de séparation (29) en deuxième position.
EP09713401.9A 2008-02-22 2009-02-16 Appareil frigorifique comportant un système de refroidissement à circulation d'air Active EP2245395B1 (fr)

Priority Applications (1)

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PL09713401T PL2245395T3 (pl) 2008-02-22 2009-02-16 Urządzenie chłodnicze z chłodzeniem recyrkulacyjnym

Applications Claiming Priority (2)

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DE102008010520A DE102008010520A1 (de) 2008-02-22 2008-02-22 Kältegerät mit Umluftkühlung
PCT/EP2009/051787 WO2009103679A2 (fr) 2008-02-22 2009-02-16 Appareil frigorifique comportant un système de refroidissement à circulation d'air

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EP2245395A2 EP2245395A2 (fr) 2010-11-03
EP2245395B1 true EP2245395B1 (fr) 2017-09-27

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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)

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PL3052871T3 (pl) * 2013-10-03 2018-08-31 Arçelik Anonim Sirketi Lodówka zawierająca szufladę z regulacją wilgotności
DE102013225092A1 (de) * 2013-12-06 2015-06-11 BSH Hausgeräte GmbH Haushaltskältegerät mit einer über einem Frischhaltebehälter angeordneten Trennwand und einer Anzeigeeinheit
DE102015212672A1 (de) * 2015-07-07 2017-01-12 BSH Hausgeräte GmbH Haushaltskältegerät mit mehreren Frischhaltebehältern und mit einer an einer Abdeckung befestigten mittleren Führungsschiene für einen Deckel der Frischhaltebehälter
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Also Published As

Publication number Publication date
PL2245395T3 (pl) 2018-03-30
RU2010136857A (ru) 2012-03-27
CN101946140B (zh) 2014-04-16
CN101946140A (zh) 2011-01-12
RU2485420C2 (ru) 2013-06-20
US20100319374A1 (en) 2010-12-23
DE102008010520A1 (de) 2009-09-03
WO2009103679A2 (fr) 2009-08-27
EP2245395A2 (fr) 2010-11-03
WO2009103679A3 (fr) 2009-10-29

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