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
• • 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
  • F25D23/06—Walls
  • F25D23/065—Details
  • F25D23/066—Liners
• • 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
  • F25D2317/067—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 air ducts
  • F25D2317/0672—Outlet ducts

Definitions

• the present invention relates to a refrigeration appliance, in particular a domestic refrigeration appliance, with an air duct in which air flows from or to a storage chamber of the refrigeration appliance, in particular between a storage chamber and an evaporator chamber.
• a household refrigerating appliance in which an air channel, is distributed over the cold air in a storage chamber of the refrigerator, recessed into a rear wall surface and a side wall surface of the storage chamber enclosing inner container and from the storage chamber through in openings of the wall surfaces latched cover plates is disconnected.
• the cover plates have a complicated three-dimensional shape, with a plurality of through holes and with latching hooks for
• the object of the invention is to provide a refrigerator with a storage chamber enclosing a heat-insulating housing and a recessed into a wall surface of the housing and communicating with the storage chamber via openings of a extending between the air duct and the bearing chamber board communicating air duct, which made inexpensive and efficient with different housing dimensions can be.
• a refrigeration device Under a refrigeration device is in particular a household refrigeration appliance understood, ie a refrigeration appliance for household management in households or possibly in the
• Catering area is used, and in particular serves to store food and / or drinks in household quantities at certain temperatures, such as a refrigerator, a freezer, a fridge-freezer, a freezer or a wine storage cabinet.
• a refrigerator such as a refrigerator, a freezer, a fridge-freezer, a freezer or a wine storage cabinet.
• the problem is solved in which in such a refrigerator, the board at the
• Wall surface is fixed by at least one bracket which comprises a resting on one of the bearing chamber side facing the board centerpiece and emanating from the center piece, engaging through at least one opening of the board in undercuts of the air channel locking hooks. Since according to the invention, the bracket takes on the task of fixing the air duct overlapping board, this need not be provided in turn with snap hooks. The shape of the board can therefore be much simpler than that of the conventional cover plate, so that a production of the board in the injection molding is not required. Rather, the board can simply turn off
• the board is flat, so that no editing of the sheet is required except for the above-mentioned cutting to manufacture the board.
• brackets are used for this purpose. Since their dimensions are inevitably smaller than that of the board, a manufacturing in injection molding is economical for the bracket. Since the stirrups can be used in large numbers and in different refrigerator models in identical shape, they can be provided efficiently and inexpensively.
• the undercuts in which engage the latching hooks of a bracket, are opposite to two side walls of the air channel, so that the latching hooks can hold each other in the undercuts in engagement.
• the locking hooks when they engage in the undercuts, are biased to hold the board without play against the wall surface of the housing, in which the air duct is recessed.
• the bracket may have on its side facing the board a flat projection which fills the at least one locking hook interspersed opening of the board, so that the board by the engagement of the projection in the direction of her
• the projection protrusion should not be greater than the thickness of the board to avoid turbulence and pressure drop engagement of the protrusion into the air channel.
• Optimum flow conditions in the air duct can be realized, in particular, if the projection of the projection corresponds to the thickness of the board, so that a vertex surface of the projection and an inner surface of the board facing the air duct are substantially flush with one another.
• the bracket can only serve to fix the board; preferably, however, it has an opening overlapping one of the openings of the board to allow the passage of air between the air channel and the storage chamber.
• This opening may be the same, through which also extends at least one of the latching hooks, but it may also be each different openings.
• the opening of the stirrup may in particular be shaped as a nozzle in order to control an air flow entering the storage chamber from the air duct.
• the undercuts are in the longitudinal direction of the air channel of
• Undercuts are undercut. In this way, the brackets are each only mountable at certain points of the air duct, and slippage of the board and the bracket along the channel and errors in the attachment of the bracket and the board can be avoided.
• Latch hook selected according to the width of the undercuts itself, so that displacement of the locking hooks in the undercuts in the longitudinal direction of the air channel is excluded.
• the absence of gaps between the snap hook and the along The air duct in front of and behind the latch hook wall areas also contributes to the minimization of turbulence in the air duct.
• flanks of the latching hooks facing the interior of the air duct are substantially flush with the wall regions of the air duct extending in front of and behind the undercuts.
• the bracket is preferably stiffened by at least one protruding rib.
• This rib should preferably be arranged on the bearing chamber facing side of the bracket, so as not to affect the flow of air in the air duct.
• Fig. 2 is a horizontal section through the rear wall of the refrigerator along in
• Fig. 3 is a section in the longitudinal direction of the air duct shown in Fig. 2 by a
• FIG. 5 shows a perspective view of the bracket of FIG. 4 and of a fragment of a board fixed by the bracket, seen from the side of the air duct;
• FIG. 6 shows a view similar to FIG. 4 according to a first modification
• FIG. and FIG. 7 shows a view analogous to FIG. 4 according to a second modification.
• the refrigerator shown in a schematic cross-section in Fig. 1 is a no-frost household refrigerator with a heat-insulating housing, which includes in a usual way a body 1 and an attached door 2, which delimit an interior, by an intermediate wall 3 in a Storage chamber 4 for refrigerated goods and an evaporator chamber 5 is divided.
• a refrigerant circuit comprises in a manner also known per se an evaporator 6 arranged in the evaporator chamber 5, a compressor 7 accommodated in a rear recess of the body 1 and a compressor
• Condenser 8 A housed in the evaporator chamber 5 fan 9 sucks air from the storage chamber 4 through openings 10 in a near-door area of the intermediate wall 3 in the evaporator chamber 5 and presses the evaporator 6 cooled air in an air duct 1 1, the, in the inside a rear wall 12 of the body 1 is recessed, vertically extending from the evaporator chamber 5 downwards.
• the air duct 1 1 extends in the width direction of the body 1 only over a central region of the rear wall 12. It is separated from the storage chamber 4 by a planar board 13, from the lateral portions on either side of the air duct 1 1, i. 1, in front of and behind the cutting plane, rest on the inner surface of the rear wall 12, based on the representation of FIG.
• the width of the board 13 is variable, it must be at least slightly wider than the air duct 1 1 to abut on both sides of this safely on the rear wall 13, and it can not exceed the width of the inside of the rear wall 13th
• circuit board 13 evenly spaced openings 14 are cut in the vertical direction. This and the variability of the width of the board make it possible to manufacture boards for a variety of refrigeration models with different housing dimensions by having a flat material strip at regular intervals with punched openings and pieces in the length of the corresponding length of air duct to be covered by the band get cut.
• the board 13 is attached to the rear wall 12 by means of brackets 15, each one on the storage chamber 4 facing side of the board 13 fitting center piece and through the covered by the central opening 14 and on
• the brackets 15 are here each shown with a nozzle-shaped openings which is shaped to form through the opening into the storage chamber 4 exiting cold air to a substantially horizontally propagating in the direction of the door 2 beam. It is also conceivable, however, to replace individual of the bracket 15 by (not shown in the figures) bracket with a closed center piece, which closes the attacked by the locking hooks of the bracket opening 14 of the board 13 substantially tight.
• Fig. 2 illustrates the anchoring of the board 13 on the rear wall 12 by means of a horizontal section on an enlarged scale.
• the projecting into the bearing chamber 4 nozzle-shaped opening of the bracket 15 is here designated by 18, and on both sides of the opening 18 engage from the central portion 16 of the bracket 15 outgoing hairpin-like curved locking hooks 17 in the air duct 1 1 a.
• Latch hooks 17 are held under bias between the side walls, so that an elastic tension of the bracket 15, which drives apart the latching hooks 17, the center piece 16 pulls against the rear wall 12 and so the board 13 between the
• Middle piece 16 and the rear wall 12 holds clamped.
• Undercuts 19 each occupy only short sections of the side walls of the air duct 1 1 and flanked in the longitudinal direction of the air duct 1 1 on both sides of wall portions 20, either not at all or weaker than the undercuts 19th are undercut. If the wall portions 20 are not undercut at all, it may indeed be possible to introduce the latching hooks 17 of a bracket 15 between opposite wall portions 20, but the bracket 15 is not firmly held in this position, and the elastic deformation, the latching hooks 17 at Pressing experienced in the air duct 1 1, drives the bracket 15 back out of the air duct 1 1 out.
• a bracket 15 may indeed temporarily hold between them, but he can not push the board 13 against the rear wall 12, and to find solid, lasting support, the bracket 15 along the air duct. 1 1 are moved until its locking hooks 17 engage in undercuts 19.
• the latching hooks 17 each comprise an im
• Undercut 19 engages, as well as a the cross-sectional profile of the wall sections 20 following, here in cross-section substantially rectilinear, plate-like
• FIG. 3 corresponds to the width of this intermediate piece 22, the width of the undercut 19, and the intermediate piece 22 is substantially flush with the undercut 19 bounding wall portions 20, so that the wall portions 20 together with the intermediate piece 22 in a section in the longitudinal direction of the air channel 1 1 substantially rectilinear, the circulating air not vortexing boundary of the air channel 1 1 form.
• Figures 4 and 5 show the bracket 15 in two perspective views, once from its the storage chamber 4 side facing and once from the air duct 1 1 side facing.
• the bearing chamber 4 facing side of the center piece 16 is, as shown in Fig. 4, substantially flat, except for a ring extending around the opening 18, the air flowing through the opening 18 to form a jet-forming nozzle 23.
• a flat projection 24, from which the latching hooks 17 go out On the the air duct 1 1 facing side of the bracket 15 is formed around the opening 18 a flat projection 24, from which the latching hooks 17 go out.
• the outline of the projection 24 corresponds to the shape of the openings 14 cut into the circuit board 13, so that when the bracket 15 is mounted in one of these openings 14, the circuit board 13 and bracket 15 in parallel to the surface of the board 13 directions immovable against each other. Thanks to the engagement of the projection 24 in the opening 14, when the latching hooks 17, as explained with reference to FIG. 3, positively engage the side walls of the air duct 11, the position of the circuit board 13 on the rear wall 12 is uniquely determined.
• the projection of the projection 24 on the surrounding rear side of the center piece 16 corresponds to the wall thickness of the board 13, so that a vertex surface 25 of the projection 24 in the mounted state is flush with the air duct 1 1 bounding inner surface 26 of the board 13.
• the inner surface 26 and the apex surfaces 25 of the bracket 15 thus form a continuous boundary of the air duct 1 1, at which the air can pass by largely turbulence.
• triangular ribs 27, e.g. As shown in Fig. 5, be provided between the middle piece 16 and the latching hooks 17.
• a stiffening of the middle piece 16 which can be realized with a low material expenditure comprises two horizontally extending on both sides of the connecting piece 23

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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)

Priority Applications (3)

Applications Claiming Priority (2)

Publications (2)

Family

ID=46319708

Family Applications (1)

Country Status (6)

Cited By (2)

Families Citing this family (3)

Citations (1)

Family Cites Families (8)

• 2011
  • 2011-06-20 DE DE201110077824 patent/DE102011077824A1/de not_active Withdrawn
• 2012
  • 2012-06-12 RU RU2013156941/13A patent/RU2561447C2/ru active
  • 2012-06-12 CN CN201280030474.XA patent/CN103608631B/zh not_active Expired - Fee Related
  • 2012-06-12 WO PCT/EP2012/061077 patent/WO2012175367A2/de not_active Ceased
  • 2012-06-12 EP EP12728206.9A patent/EP2721357B1/de active Active
  • 2012-06-12 PL PL12728206.9T patent/PL2721357T3/pl unknown

Patent Citations (1)

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