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
  • F25D23/00—General constructional features
  • F25D23/006—General constructional features for mounting refrigerating machinery components
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
  • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
  • F04D25/00—Pumping installations or systems
  • F04D25/02—Units comprising pumps and their driving means
  • F04D25/06—Units comprising pumps and their driving means the pump being electrically driven
  • F04D25/0606—Units comprising pumps and their driving means the pump being electrically driven the electric motor being specially adapted for integration in the pump
  • F04D25/0613—Units comprising pumps and their driving means the pump being electrically driven the electric motor being specially adapted for integration in the pump the electric motor being of the inside-out type, i.e. the rotor is arranged radially outside a central stator
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
  • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
  • F04D29/00—Details, component parts, or accessories
  • F04D29/60—Mounting; Assembling; Disassembling
  • F04D29/601—Mounting; Assembling; Disassembling specially adapted for elastic fluid pumps
• • 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
  • F25D2317/00—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass
  • F25D2317/06—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation
  • F25D2317/068—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation characterised by the fans
  • F25D2317/0681—Details thereof

Definitions

• the present invention relates to a refrigerator such as a refrigerator having a housing enclosing an interior and a fan unit mounted in the interior.
• a fan unit can e.g. serve to intensify an air flow over a heat exchanger surface, so as to improve the cooling effect of the heat exchanger, or to equalize the temperature distribution in this by mixing the air of the interior.
• such a fan unit is arranged in the upper region of the interior so that an air flow generated by it flows along a rear wall of the interior, wherein the air flow sweeps over a arranged on the rear wall of the interior evaporator.
• the air flow is cooled, and the now cooled air can get into individual cooling compartments depending on the division of the interior.
• a mounted in a corner formed by the rear wall and ceiling of the interior fan unit which has a fan as a radial fan.
• the axis of the fan is arranged perpendicular to the rear wall, so that a parallel to the rear wall extending air flow is generated.
• a fan impeller of the fan is spaced from the rear wall, and a gap between the impeller and the rear wall is used to accommodate a motor driving the impeller. This makes it possible to suck air in the immediate vicinity of the ceiling in the fan unit, however, the generated air flow has a width of the gap corresponding distance from the rear wall.
• the fan is an axial fan and is arranged at a ceiling of the interior of a rear wall of the interior spaced by a gap and set up is to blow against the back wall.
• the arrangement of the fan on the ceiling the air can be optimally absorbed even from the top and thus the warmest area in the interior.
• the gap can be generated in a low-loss manner along the rear wall of the first horizontally oriented air flow generated by the fan To divert the interior.
• the width of the gap corresponds to the radius of curvature of the rounding.
• the gap is bounded on two sides by side walls.
• the side walls thus limit the air flow in its width and direct it in the desired direction.
• each side wall is continuously against the ceiling and the rear wall. This prevents air from leaking and swirling unintentionally on the sides of the fan assembly, thus providing greater airflow efficiency.
• the fan assembly comprises a housing which separates the fan from a useful area of the interior. The housing hides the fan and also forms a design element. The fan can thus be used uniformly in a variety of different types of refrigerators, and an adaptation to the particular type of refrigerator can be made exclusively through the housing.
• an air inlet opening of the fan assembly is bounded by a ceiling of the interior and of the housing of the fan unit.
• an air outlet opening of the fan assembly is bounded by a rear wall of the interior and of the housing of the fan unit.
• the air flow may flow down directly along the rear wall of the interior space.
• a gap is formed between the rear wall and a rear edge of a refrigerated goods carrier.
• the refrigerator according to the invention offers particular advantages in that through the guidance of the air flow along the back wall of the interior, condensation of an evaporator arranged in the rear wall can be prevented. Due to the compact design of the fan unit, the volume of the interior is not unnecessarily reduced. In addition, a higher efficiency can be achieved by means of a low-voltage axial fan than with centrifugal fans, as has hitherto been customary used in refrigerators, thereby the energy efficiency of the refrigerator can be improved.
• FIG. 1 is a schematic section through a household refrigerating appliance, in which a fan unit is mounted, according to the invention.
• Fig. 2 is a perspective view of a fan assembly according to the invention, seen obliquely from behind;
• Fig. 3 is a schematic partial section through an upper portion of a refrigerator of Fig. 1, seen from the front.
• the fan unit comprises a fan frame 1, a fan 2, which is mounted in the frame 1 and a cladding shell 12.
• the cladding shell 12 and the frame 1 form a housing for the fan 2.
• the fan 2 is preferably designed as an axial fan, which its air flow directed to a rear wall 18 of the interior 16.
• the fan frame 1 is fixed in any suitable manner, for example by latching in cut into a solid inner skin of a housing 19 of the refrigerator, openings in the position shown.
• the cladding shell 12, which encloses the fan frame 1 closely, is attached to the fan frame 1.
• a rear wall 18 of the interior 16 is an evaporator 14.
• a compressor 15 is housed in a conventional manner in a rear niche of the refrigerator housing.
• one or moredegutlini 13 are mounted, which are preferably formed as plates. These are fastened in a known manner in the interior 16.
• a rear edge of the refrigerated goods carriers 13 forms with the Rear wall 18 of the interior 16 a gap 21.
• the rear wall 18 and an adjacent ceiling 17 of the interior 16 go over a rounding 9 continuously into each other.
• the fan 2 is spaced from the rear wall 18 and forms with it a gap 20.
• the distance of the fan 2 from the rear wall 18 and thus the width of the gap 20 corresponds to the radius of curvature of the rounding.
• a side wall 3 is formed. A rear edge of the side wall 3 is continuously from the inside to the ceiling 17 and the rear wall 18 in the region of the rounding 9 at.
• an air inlet opening 10 of the fan unit Located on a ceiling 17 of the interior 16 is an air inlet opening 10 of the fan unit.
• An air outlet opening 1 1 of the fan unit is arranged directly on a rear wall 18 of the interior 16.
• the air outlet opening 11 is bounded from behind by the rear wall 18 and from the front by a rear edge of the lining shell 12th
• Fig. 2 is a perspective view of the fan assembly according to the invention is shown, seen from its rear side.
• the fan 2 has a cuboid housing with an impeller mounted in a passage of the housing.
• a drive motor is housed in a hollow hub of the impeller.
• the fan 2 is mounted in a receiving compartment of the fan frame 1.
• the receptacle is limited on three sides by side walls 4, 4 'and a bottom (not visible).
• the fan 2 At its front side or suction side, the fan 2 is held by an upper web 6 connecting the side walls 4, 4 '. At this web 6, a detent 7 is formed, which engages an upper edge of the housing of the fan 2 and fixes the fan 2 in the receiving compartment. At its rear side or outlet side, the fan 2 is held by two vertical edges, which connect the side walls of the receiving compartment 4, 4 'with side walls 3, 3' parallel to them, and by approximately triangular wall sections 5, which extend in height extend the vertical edge between one of the side walls 3, 3 'and the (not visible) bottom of the receiving compartment.
• the side walls 3, 3 ' define the gap 20 between the fan 2 and the rear wall 18 shown in FIG. 1 on two sides.
• the side walls 3, 3 ' are substantially rectangular in shape, with their rear upper corner being rounded in adaptation to the rounding 9, so that edges of the side walls 3, 3' bear tightly against the ceiling 17, the rear wall 18 and the rounding 9. In the view shown in Fig. 1, only the side wall 3 facing away from the viewer is visible.
• FIG. 1 A schematic representation of the air flow to and from the fan unit is further shown in Fig. 1.
• Air from the interior 16 is sucked by the fan unit through the air inlet opening 10 and flows through the fan 2.
• a generated by the fan 2 air flow is directed substantially directly to the rounding 9 between the ceiling 17 and rear wall 18.
• the air flow is deflected by the formed by the side walls 3, 3 'of the frame 1, the ceiling 17 and the rear wall 18 of the inner space 16 in the region of the curve 9 gap 20 and directed downward. Due to the limitation of the gap 20 through the side walls 3, 3 'and the rear wall 18 can be prevented that the air flow is short-circuited within the fan assembly.
• the downwardly directed air flow occurs directly at the rear wall 18 through the air outlet opening 1 1 back into the interior 16, so that the air flow can flow along the evaporator 14, is cooled by this and possibly promotes the evaporation of condensed water deposited thereon.
• the airflow behind the cooled goods carriers 13 spaced from the rear wall 18 flow downwards, so that the now cooled air can be uniformly distributed in all areas of the interior 16 delimited from each other by the refrigerated goods carriers 13.
• Fig. 3 is a schematic partial section through an upper portion of the refrigerator of Fig. 1 is shown, seen from the front.
• the fan unit is mounted in the interior 16, wherein the cladding shell 12 is attached to the frame 1.
• the air inlet opening 10 is bounded from above by the ceiling 17, and from below by an upper edge of the lining shell 12.
• the cladding shell 12 is not on the ceiling 17 at.
• the requirements for a dimensional accuracy of the cladding shell 12 and / or the accuracy of their assembly to the fan frame 1 are lower than they would be in a positive-locking arrangement, so that the manufacture of the cladding shell 12 is simplified.
• the fan frame the shape of which in particular at the edges of the walls 3, 3 'must be adapted to the shape of the curve 9
• the cladding shell due to the relatively low demands on their manufacturing tolerances 12 inexpensive be manufactured in various appearances.

Landscapes

• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• General Engineering & Computer Science (AREA)
• Chemical & Material Sciences (AREA)
• Combustion & Propulsion (AREA)
• Physics & Mathematics (AREA)
• Thermal Sciences (AREA)
• Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)

Priority Applications (3)

Applications Claiming Priority (2)

Publications (1)

Family

ID=39790258

Family Applications (1)

Country Status (5)

Cited By (1)

Families Citing this family (7)

Citations (6)

Family Cites Families (6)

• 2007
  • 2007-06-25 DE DE200710029178 patent/DE102007029178A1/de not_active Withdrawn
• 2008
  • 2008-06-18 RU RU2009147177/13A patent/RU2468317C2/ru not_active IP Right Cessation
  • 2008-06-18 WO PCT/EP2008/057663 patent/WO2009000714A1/de active Application Filing
  • 2008-06-18 EP EP08774118A patent/EP2160553A1/de not_active Ceased
  • 2008-06-18 CN CN200880022141.6A patent/CN101688735B/zh not_active Expired - Fee Related

Patent Citations (6)

Non-Patent Citations (1)

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