EP3362748A1 - Kältegerät mit expansionsöffnung - Google Patents
Kältegerät mit expansionsöffnungInfo
- Publication number
- EP3362748A1 EP3362748A1 EP16770930.2A EP16770930A EP3362748A1 EP 3362748 A1 EP3362748 A1 EP 3362748A1 EP 16770930 A EP16770930 A EP 16770930A EP 3362748 A1 EP3362748 A1 EP 3362748A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- expansion
- wall
- wall element
- appliance according
- refrigerating appliance
- 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.)
- Ceased
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
- F25D23/00—General constructional features
- F25D23/06—Walls
- F25D23/062—Walls defining a cabinet
- F25D23/064—Walls defining a cabinet formed by moulding, e.g. moulding in situ
Definitions
- the invention relates to a refrigeration appliance, in particular domestic refrigeration appliance, comprising a body and a door, which together define a storage space, which body has a limited by an outer wall and an inner wall cavity, which is filled with insulating material, the body further comprising a machine room for receiving aggregates.
- Refrigerators, freezers or fridge-freezer combinations to foam the cavity with insulation material.
- the insulating material is first introduced in liquid form into the cavity, expands within the cavity and, after it has completely filled the cavity, permanently cured.
- the liquid insulation material is introduced, for example, through filling openings via foam lances. Escape of the air in the cavity prior to expansion may be due to manufacturing leakage, e.g. Column between two positively interconnected elements of the outer wall, take place.
- liquid insulation material insulation material can escape through the leaks. The leaked insulation material, if it is considered from the optical point of view as disturbing the user of the refrigerator, preferably after curing are eliminated.
- Object of the present invention is to improve an initially described refrigeration device over the prior art, in particular to allow easy production.
- a refrigeration device according to the independent claim. Accordingly, it is provided in the case of a refrigeration device described at the outset that a wall element of the machine room delimiting the insulating material has an expansion opening. Through the expansion opening air can escape during expansion of the insulating material. Depending on the location and size of this expansion opening and depending on the amount of introduced, liquid insulation material insulation material can escape through the expansion opening.
- the inventive arrangement of the expansion opening on a wall element of the engine room but possibly leaked through the expansion opening and excess insulation material for a user of the refrigerator, if at all, very difficult to perceive. Thus, it is no longer necessary in a refrigerator according to the invention to remove leaked insulation material by a further step. As a result of the saving of this production step, which is generally to be carried out by a worker, a refrigeration appliance which is simple and inexpensive to produce and nevertheless visually appealing is provided according to the invention. Embodiments of the present invention are defined in the subclaims.
- the engine room is preferably located at the lower end of a rear side of the refrigeration device, with a view to the refrigerator installed according to the purpose.
- the engine room can be open with a view to the back to better dissipate waste heat or to facilitate access to the aggregates.
- the engine room has as walls a ceiling, two side walls, a floor and a front wall.
- the ceiling and the front wall can form part of the outer wall of the refrigerator, so can form a boundary of the insulation material.
- the wall element forms at least a portion of a ceiling of the machine room. It is possible that the wall element a blanket of the engine room in terms of area completely or partially forms. According to one embodiment, it is provided that the wall element is a plastic injection-molded component. This allows a simple way of introducing the expansion opening. In order to ensure a safe escape of the air, an expansion opening with a correspondingly large opening cross-section is necessary. However, the larger the opening area, the greater the risk of excessive leakage of insulation material. This is because the still liquid insulation material emerges as a thicker strand at the outlet and therefore hardens more slowly.
- the wall element has at least two expansion openings. It is also possible to provide several, for example four, expansion openings. In principle, it is conceivable that the two or more expansion openings are all arranged on the wall element and the wall element forms a one-piece and one-component component. It is also conceivable that the refrigeration device has a plurality of expansion openings, which are arranged on different wall elements. Preferably, the two or more expansion ports are identical in shape and size. Compared to a single expansion opening, the two or more expansion openings may have smaller opening cross-sections.
- the wall element extends substantially over an entire width of the refrigeration device and two expansion openings in the width direction of the refrigeration device over more than half the width of the refrigerator are spaced apart.
- the wall element may preferably have receptacles for inserting outer wall elements of the outer wall of the refrigeration device.
- the wall element may have slots or grooves in which plate-shaped outer wall elements, such as cardboard elements, can be anchored. Is possible also that the wall element is glued to outer wall elements by means of an adhesive tape.
- a voids formation in the form of air inclusions in the insulating material is disadvantageous, in particular in the region of the rear wall of the refrigeration appliance, since these can be perceptible to a user when setting up the appliance.
- the wall element has an expansion space for receiving excess insulating material and the expansion opening is arranged in the expansion space.
- the expansion space may have a volume of less than 3 cubic centimeters, preferably less than 2 cubic centimeters, and more preferably less than 1 cubic centimeter.
- the expansion space is formed by a recess directed in the direction of the cavity. It is possible that a diameter of a perimeter, which perimeter includes an opening of the recess, is substantially equal to a depth of the recess, is preferably smaller than the depth, and further preferably is substantially half the depth. This ensures that the material leaked through the expansion opening and hardened in the expansion space is difficult to perceive by a user. According to one embodiment, it is provided that the expansion space is formed by a substantially cylindrical cup. The cup allows a simple and inexpensive production of the wall element by, for example, an injection molding process.
- the expansion opening is formed at a bottom of the depression or the cup.
- the expansion opening has a circular opening cross-section whose diameter is preferably less than 5 mm, more preferably less than 3 mm.
- FIG. 1 shows a rear view of a refrigeration appliance in the form of a domestic refrigeration appliance 1 1, the enlarged representation of a section of the household refrigerating appliance 1 in Fig. 2 for illustration purposes shows a state with the rear wall removed.
- the household refrigerating appliance 1 comprises a body 2 and a door 3 attached thereto, which together define a storage space (not shown).
- the body 2 has a visible outer wall 4, which is formed by a ceiling 4a, side walls 4b, 4c, a rear wall 4d and a non-visible bottom. Between this outer wall 4 and an inner wall 5 is insulating material in the form of polyurethane foam.
- a machine room 6 takes aggregates 7 of the refrigerating appliance, such as e.g. a compressor 8.
- the machine room 6, which is open in the depth direction T, is bounded by walls 9, namely a ceiling 9a, two side walls 9b and 9c, a bottom 9d and a front wall 9e.
- Both the ceiling 9a and the front wall 9e define a cavity 10 within which the insulation material is located.
- the ceiling 9a is formed by a substantially over an entire width (B) of the household refrigerator 1 extending first wall element 1 1, which is formed by a plastic injection molded part, as well as also substantially over an entire width (B) of the household refrigerator. 1 extending second wall element 12, which is formed by a cardboard element. Both wall elements 1 1, 12 are sealingly connected to each other, for example, sealed by an adhesive tape against an outlet of insulation material.
- the first of the two wall elements 1 1 is shown in more detail in Fig. 3, wherein Fig. 3a) shows the complete wall element 1 1, while Fig. 3b) shows a section along the section line A-A in Fig. 3a).
- the wall element 1 1 has four expansion openings 13. By means of this, air can escape from the cavity 10 during the expansion of the insulating material.
- the expansion openings 13 have a circular cross-section and represent in the finished household refrigerator 1 open passages between the cavity 10 and the environment.
- Each two expansion openings 13a, 13b and 13c, 13d are arranged in a proximity to each other, i. their distance is less than 10 cm.
- the expansion openings 13 are located respectively at a bottom 14 of a substantially cylindrical cup 15. Based on the portion of the wall element 1 1, which surrounds an opening of the cup, the cup 15 forms a recess 16 which extends in the direction of the cavity 10.
Landscapes
- 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)
- Refrigerator Housings (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE202015007214.3U DE202015007214U1 (de) | 2015-10-15 | 2015-10-15 | Kältegerät mit Expansionsöffnung |
PCT/EP2016/072973 WO2017063869A1 (de) | 2015-10-15 | 2016-09-27 | Kältegerät mit expansionsöffnung |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3362748A1 true EP3362748A1 (de) | 2018-08-22 |
Family
ID=54840155
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP16770930.2A Ceased EP3362748A1 (de) | 2015-10-15 | 2016-09-27 | Kältegerät mit expansionsöffnung |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP3362748A1 (de) |
DE (1) | DE202015007214U1 (de) |
WO (1) | WO2017063869A1 (de) |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS55114483U (de) * | 1979-02-07 | 1980-08-12 | ||
JP2724523B2 (ja) * | 1991-10-21 | 1998-03-09 | シャープ株式会社 | 断熱箱体及びその製造方法 |
DE19728648A1 (de) * | 1997-07-04 | 1999-01-07 | Aeg Hausgeraete Gmbh | Kühl- und/oder Gefriergerät mit einem in einem ausschäumenden Hohlraum angeordneten Schaumführungselement, Schaumführungselement sowie Verfahren zum Ausschäumen eines Hohlraums |
DE10058401A1 (de) * | 2000-11-24 | 2002-05-29 | Bsh Bosch Siemens Hausgeraete | Wärmeisolierendes Gehäuse für ein Kältegerät |
JP2004286316A (ja) * | 2003-03-24 | 2004-10-14 | Fujitsu General Ltd | 発泡断熱材の充填方法 |
DE202006007334U1 (de) * | 2006-05-08 | 2006-07-13 | BSH Bosch und Siemens Hausgeräte GmbH | Kältegerät |
EP2756241B1 (de) * | 2011-09-16 | 2020-04-01 | Arçelik Anonim Sirketi | Kühlvorrichtung mit einem isoliermaterial zur homogenen verteilung in einem isolationsvolumen |
-
2015
- 2015-10-15 DE DE202015007214.3U patent/DE202015007214U1/de active Active
-
2016
- 2016-09-27 WO PCT/EP2016/072973 patent/WO2017063869A1/de unknown
- 2016-09-27 EP EP16770930.2A patent/EP3362748A1/de not_active Ceased
Also Published As
Publication number | Publication date |
---|---|
WO2017063869A1 (de) | 2017-04-20 |
DE202015007214U1 (de) | 2015-11-23 |
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