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
  • F04D25/068—Mechanical details of the pump control unit
• • 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
  • 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
  • F04D29/62—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps
  • F04D29/624—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
  • F04D29/626—Mounting or removal of fans
• • 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
  • F04D29/64—Mounting; Assembling; Disassembling of axial pumps
  • F04D29/644—Mounting; Assembling; Disassembling of axial pumps especially adapted for elastic fluid pumps
  • F04D29/646—Mounting or removal of fans
• • 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
  • F25D17/067—Evaporator fan units
• • 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 or freezer with a housing enclosing an interior and with a fan unit wherein the fan unit is 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.
• fan units for refrigerators which consist of a compact component and are fixedly mounted in the interior of the refrigerator.
• the fan unit may include an air filter, which must be replaced at regular intervals.
• an air filter which must be replaced at regular intervals.
• To change the air filter depending on the design of the fan assembly either the entire fan unit must be removed, or it must be provided on the housing of the fan unit an opening, for example, with an openable cover, which makes the air filter accessible for replacement. Both alternatives are disadvantageous. Tools are required to remove the entire fan assembly, and expertise is required to complete the removal. An opening with an associated cover on the housing of the fan unit requires design effort and increases the number of components.
• fan units for refrigerators are known in which the fan unit is extended by an interior lighting to a fan-light combination that can be mounted as a pre-assembled module in the interior.
• a fan-light combination that can be mounted as a pre-assembled module in the interior.
• Fan-light combination at least the slot of the bulb must be accessible from outside the case, so that a defective bulb can be replaced.
• the above-mentioned problem of replacing the air filter for the fan can also exist here.
• Such a device is known for example from the patent ES 2 054 570 A2.
• the solution disclosed there provides a recess in the housing of the fan unit at the slot of the lamp, which is normally closed with a removable cover.
• the housing is firmly mounted on the interior of the refrigerator.
• a disadvantage of this solution is also the high design effort to provide the opening on the housing of the fan unit and a corresponding cover for this.
• a refrigeration device with a fan unit which comprises a frame, a fan mounted on the frame and a cladding shell, which is adapted to separate the fan unit from a useful range of an interior of the refrigerator
• the frame at least one guide rail has and the cladding shell along the guide rail on the frame can be plugged.
• the frame and the cladding shell of the fan assembly are designed as separate components, with replaceable wear parts of the fan unit can be mounted on the frame or on the cladding shell.
• the cladding shell can completely cover the frame and separate it from the interior.
• An attachment of the cladding shell on the guide rail can be made without tools. Since the cladding shell can be solved as a whole of the frame, in the cladding shell neither special openings for concealed wear parts, nor covers for these openings necessary, so that the design effort can be reduced.
• the cladding shell in the latched state on a movement margin along the guide rail. Pulling on the cladding shell thus does not yet cause the cladding shell to detach from the frame, but rather the cladding shell may yield slightly in the direction of the guide rail. This can also preclude accidental release of the lining shell
• the frame comprises a latching element, which engages from the inside into the cladding shell. As a result, the structure underlying the latching can be completely covered by the cladding shell.
• the locking element is exposed outside of the cladding shell.
• the locking element is also visible when the panel shell is mounted and gives a user immediately its function without the user having to consult a documentation.
• the cladding shell as mentioned above has a range of motion, a movement of the cladding shell leads to a movement of the externally visible locking elements, whereby a user is intuitively pointed to their function.
• the latching element is simultaneously an actuating element for releasing the latching.
• the locking can be easily solved again, and a removal of the lining shell can also be done very easily without tools.
• the frame is composed of several parts of a fan frame carrying the fan and an attached to an outside of the fan frame, an additional functional element supporting additional part.
• the fan unit which always comprises a fan frame and a fan as a basic element, can be extended by a component which has an additional function, such as a lamp.
• more complex fan units can be assembled very easily modular, with different types of equipment can be realized, which differ in each case in the additional functional element and a correspondingly adapted variant of the cladding shell.
• the guide rail is formed by the fan frame and by the additional part.
• the cladding shell which can be plugged onto the guide rail, thus receives an additional support on the additional part, so that even a conditional by the additional functional element enlarged cladding shell can be securely held on the frame.
• the guide rail is divided in particular in the longitudinal direction, wherein a first part of the guide rail is formed by the fan frame and a second part of the guide rail through the additional part. The additional part can thus extend the guide rail.
• the locking element is formed by the fan frame. Due to the fact that the fan unit comprises the fan frame as the basic element in all the different modularly assembled variants, the locking element on the fan frame can ensure the locking of the panel shell on all variants.
• the cladding shell is held on the housing via the frame. Then, no additional mounting devices for the lining shell must be provided in the interior of the refrigerator, since only the frame carries the cladding shell. Overall, this minimizes the design effort.
• FIG. 1 is a schematic section through a refrigerator in which a fan unit is mounted, according to the invention.
• Fig. 2 is a perspective view of a fan assembly without a fairing shell, seen obliquely from the front;
• Fig. 3 is a view of the fan unit of Figure 2, seen from above.
• Fig. 4 is a side view of a cladding shell according to the invention
• 5 shows a schematic section through the lining shell along a line B in FIG. 4;
• Fig. 6 is a perspective view of an extended with an additional functional element
• Fan unit without cover shell, seen at an angle from the front.
• FIG. 1 shows a schematic section through a refrigeration appliance, for example a refrigerator, in which a ventilator unit 1 is installed at an upper rear corner of an interior 71.
• the fan unit 1 comprises a fan frame 2, a fan 3, which is mounted in the frame 2, and a cladding shell 4.
• the cladding shell 4 and the frame 2 form a housing for the fan 4.
• the fan 4 is preferably designed as an axial fan, which directed its air flow to a rear wall 73 of the interior 71.
• the fan frame 2 is fixed in any suitable manner, for example by latching in cut into a solid inner skin of a housing 7 of the refrigerator, in the position shown.
• the cladding shell 4, which surrounds the fan frame 2 closely, is attached to the fan frame 2.
• An evaporator 74 is disposed in the rear wall 73 of the inner space 71, so that the air flow discharged from the fan unit 1 passes over a wall surface cooled by it.
• a compressor 75 is housed in a conventional manner in a rear niche of the refrigerator housing.
• Fig. 2 shows a perspective view of a fan assembly 1 without cladding shell, seen obliquely from the front. Shown is a fan frame 2, in which a fan 3 is mounted.
• a filter support 23 in the form of a grate.
• a plurality of locking tongues 24 are formed, which serve as a holder for an air filter (not shown here), which is attached to the filter carrier 23 when needed.
• On an upper side of the frame 2 extend on both sides from a front edge of the frame 2 to about the center of the top two upwardly open grooves, which form two guide rails 21 and 21 'and are arranged parallel to each other.
• the interior of the frame 2 facing flanks 25, 25 'of the guide rails 21, 21' are each higher than the outside of the frame 2 facing flanks 26, 26 '.
• An upper edge of the flanks 25, 25 ' is in each case aligned with the upper side of the frame 2.
• a locking element 22 is formed, which has the shape of a square plate, is arranged parallel to the side of the frame 2 and protrudes from this. Also on an opposite side of the frame 2, a locking element 22 in the form and position corresponding locking element is formed, which is hidden in this view, and also protrudes from all other parts on its side of the frame 2.
• Fig. 3 is a view is shown, which shows the fan unit 1 of FIG. 2 from above. From the fan 3, a housing is visible, which surrounds a fan of the fan 3.
• the guide rails 21 and 21 ' extend on both sides along a front part of the top of the frame 2 and are parallel to each other.
• the latching elements 22, 22 ' occupy a slightly oblique position relative to the guide rails 21, 21', the distance between two front edges of the latching elements 22, 22 ', which face the guide rails 21, 21', being smaller than the distance between two rear edges.
• the front edges protrude relative to the frame 2 via planes A, A ', which constitute a lateral boundary of the frame 2, by a distance which corresponds essentially to a wall thickness of the lining shell 4.
• the rear edges protrude a greater distance beyond the planes A, A '.
• the locking elements 22, 22 ' are connected via suspensions 27, 27' to the frame 2.
• the suspensions 27, 27 ' are each formed by a pair of legs, of which a leg on the front and a leg at the rear edge of the locking elements 22, 22' is integrally formed. Each of the legs is divided into three sections, which merge into each other at transition points with very small wall thickness, so that the legs are flexible overall.
• the pairs of legs have seen from above a substantially X-shaped shape, with the legs do not touch at the crossing point of the X.
• the locking elements 22, 22' give a pressure on the same from the outside in the direction of the frame 2, and return to the starting position once the pressure subsides. In addition, they can yield elastically to a force acting parallel to the lines A, A '.
• the cladding shell 4 shows a side view of a cladding shell 4.
• the cladding shell 4 has two side walls 41, of which only one is visible in this view, and a front wall 45.
• An upper edge 43 of the side wall 41 is continuous in a curve a rear edge 44 of the side wall 41 via. This rounding is complementary to a rounding, on the ceiling 72 and rear wall 73 of the interior 71 merge into one another.
• the shape of the cowl 4 may vary, but the cowl 4 is always shaped to closely enclose the frame 2.
• the side wall 41 has a recess 42 which has a substantially square shape and is disposed in an upper half of the side wall 41.
• the size and shape of the recess 42 corresponds to the outer contours of the locking element 22, which engages from the inside into the recess 42 and passes through it, when the lining shell 4 is attached to the frame 2.
• FIG. 5 now shows a schematic section through the lining shell 4 along a line B in FIG. 4.
• transverse straps 46, 46 ' are formed which extend from the side walls 41, 41 extend 'in an interior of the lining shell 4, and which each hold a rail 47, 47', which projects from the transverse brackets 46, 46 'substantially vertically downwards into the interior of the lining shell 4.
• the rails 47, 47 ' are shaped so that they can reach into them as a counterpart to the guide rails 21, 21' of the frame 2.
• the transverse brackets 46, 46 'extend beyond the outer flanks 26, 26' of the guide rails 21, 21 'and the rails 47, 47' are spaced from the guide rails 21, 21 'and whose outer and inner flanks 26, 26 ', 25, 25' firmly enclosed.
• the length of the transverse straps 46, 46 'and the rails 47, 47' corresponds substantially to the length of the guide rails 21, 21 'on the frame 2.
• the inclination of the locking element 22 on the one hand when sliding the panel shell 4 facilitates the retraction of the locking element 22, on the other hand, the panel shell 4 is securely held in the mounted state by the protruding rear edge of the locking element 22.
• FIG. 6 shows a perspective view of a fan assembly 1, which has been extended with an additional functional element, without a lining shell 4, seen obliquely from the front.
• the illustrated fan unit 1 comprises a fan frame 5 with a fan 3 and an additional part 6, which carries a lighting means 67.
• the fan unit 1 in Fig. 6 is thus a fan-light combination.
• the fan frame 5 substantially corresponds to the frame 2 of FIG. 2 and comprises a guide rail 51, the inner and outer flanks 55 and 56, and a latching element 52. On the opposite side of the frame, the same elements are arranged, of which, however, in this illustration only an inner edge 55 'is visible. On a filter support 53, an air filter (not shown) can be attached.
• the additional part 6 is attached to the fan frame 5, for example by plugging and locking. On the exact nature of the attachment will not be discussed here.
• the additional part 6 extend on an upper side on both sides of a rear edge of the additional part 6 forth two upwardly open grooves, which form two guide rails 61 and 61 'and are arranged parallel to each other.
• the guide rails 61, 61 ' are bounded laterally by inner flanks 65, 65' and outer flanks 66, 66 '.
• the guide rail 61, together with its flanks 65, 66 directly adjoins the guide rail 51 of the fan frame 5 and its flanks 55, 56 and continues its cross-section, so that the guide rails 51 and 61 together form an elongated guide rail, wherein a first part through the guide rail 51 and a second part is formed by the guide rail 61.
• a guide rail arranged in parallel is formed by a first part (not visible in this illustration) on the fan frame 5 and a second part 61 'on the additional part 6.
• the inner edge 55 'on the fan frame 5 forms with the inner edge 65' on the additional part 6 an escape, as well as an outer edge of the guide rail (not shown) on the fan frame 5 with an outer edge 66 'on the additional part 6 is aligned.
• the lining shell 4 (not shown) of the fan assembly 1 shown in Fig. 6 has over the representation in Fig. 4 has an elongated shape, which also covers the additional functional element.
• the brackets 46, 46' and rails 47, 47 'formed there also have an elongate shape which extends in total over the length of the composite guide rails 51, 61 and 51', 61 ', so that the elongated rails 47, 47 'engage substantially over their entire length in the assembled guide rails 51, 61 and 51', 61 'and hold the panel shell 4 to the extended fan unit 1.
• the cutouts 42, 42 'on the extended lining shell 4 are arranged at the same position as shown in Fig. 4, since the locking element 52 and an opposite locking element (not visible) on the fan frame 5 in the extended fan unit 1, the same position relative to the Cladding shell 4 maintained as the locking elements 22, 22 'on the fan frame. 2
• the cover shell 4 requires no further attachment to the housing of the refrigerator, but is only held by the fan frame 5 and the additional part 6.
• replaceable parts of the fan assembly 1 such as an air filter attached to the filter support 23, 53 or a light source 67 are easily accessible and can be replaced if necessary.
• the air filter is optional in the versions shown and may also be missing.
• the invention is also applicable to such fan units in which no air filter is provided from the outset.
• the device according to the invention not only has the advantage that the lining shell 4 can be easily attached and removed, but offers the possibility of cladding shells 4 in different versions for different refrigeration appliance models by the uniform structural design of the holder for the lining shell 4 on the fan frame 2, 5 use, without having to adjust the fan frame 2, 5 and without the housing of the refrigerator.

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)
• Devices That Are Associated With Refrigeration Equipment (AREA)
• Filtering Of Dispersed Particles In Gases (AREA)
• Structures Of Non-Positive Displacement Pumps (AREA)

Priority Applications (3)

Applications Claiming Priority (2)

Publications (1)

Family

ID=39791563

Family Applications (1)

Country Status (5)

Citations (7)

Family Cites Families (7)

• 2007
  • 2007-06-25 DE DE200710029185 patent/DE102007029185A1/de not_active Withdrawn
• 2008
  • 2008-06-10 EP EP08760762A patent/EP2160551A1/de not_active Withdrawn
  • 2008-06-10 CN CN2008800216742A patent/CN101688733B/zh not_active Expired - Fee Related
  • 2008-06-10 WO PCT/EP2008/057201 patent/WO2009000640A1/de active Application Filing
  • 2008-06-10 RU RU2009147679/13A patent/RU2469246C2/ru not_active IP Right Cessation

Patent Citations (7)

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