EP0868638B1 - Kältegerät, insbesondere haushalts-kältegerät - Google Patents
Kältegerät, insbesondere haushalts-kältegerät Download PDFInfo
- Publication number
- EP0868638B1 EP0868638B1 EP96934756A EP96934756A EP0868638B1 EP 0868638 B1 EP0868638 B1 EP 0868638B1 EP 96934756 A EP96934756 A EP 96934756A EP 96934756 A EP96934756 A EP 96934756A EP 0868638 B1 EP0868638 B1 EP 0868638B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- sieve
- cooling appliance
- appliance according
- surround
- receiving sleeve
- 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.)
- Expired - Lifetime
Links
Images
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
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B43/00—Arrangements for separating or purifying gases or liquids; Arrangements for vaporising the residuum of liquid refrigerant, e.g. by heat
- F25B43/003—Filters
-
- 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
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B5/00—Compression machines, plants or systems, with several evaporator circuits, e.g. for varying refrigerating capacity
- F25B5/02—Compression machines, plants or systems, with several evaporator circuits, e.g. for varying refrigerating capacity arranged in parallel
-
- 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
- F25D2400/00—General features of, or devices for refrigerators, cold rooms, ice-boxes, or for cooling or freezing apparatus not covered by any other subclass
- F25D2400/04—Refrigerators with a horizontal mullion
Definitions
- the invention relates to a refrigerator, in particular a household refrigerator, such as a refrigerator or Freezers, with at least one refrigeration cycle, within which one Dryer cartridge is arranged, in the cartridge housing one made of sintered materials formed, through which refrigerant flows, which is arranged on its Peripheral edges are surrounded by a frame-like border with which the sieve is fixed in the flow cross section of the dryer housing.
- a household refrigerator such as a refrigerator or Freezers
- the wire screens have been changed to screens made of sintered materials, to replace so-called sintered sieves. These are within the range of refrigerant flowed cross section of the dryer housing through at least approximately Sieving thickness corresponding beads formed in the housing wall without cutting fixed.
- special attention should be paid to the fact that the sieve with a certain installation air in the flow cross section of the dryer housing is inserted and that the introduction of the beads is controlled so that the sintered sieve is not damaged during its fixing process.
- To meet these demands is both a complicated and therefore costly assembly - as well Fixing tool necessary.
- a refrigerator according to the features of the preamble of Claim 1 known from EP-A-0 594 431. That in this publication
- the refrigeration device disclosed includes a dryer cartridge in its refrigeration cycle a housing in which a filter is held.
- a cup-shaped holding element provided, in the cup space of the filter body is inserted.
- the holder of the filter inside the cup-like holder is on this integrally formed tab-like projections, which after the insertion of the Filter body in the receiving space of the cup-like receptacle against the filter body are bent.
- this type of mounting means that the Resiliently spring back protrusions after bending, which ensures a liquid-tight contact of the filter on the bottom of the cup-like receptacle is not guaranteed and therefore the filter effect due to the non-installation created by-pass is inadequate.
- a bracket brings for a filter body that a significant part due to the bending of the projections the effective filter area is covered and therefore cannot be flowed through. The covered part of the filter surface is therefore ineffective.
- By covering certain Filter sections of the active filter area there is a risk that the around the accumulated cover area reduces the active filter area prematurely Clogged dirt particles and thus the dryer and thus the entire refrigeration cycle becomes inoperable prematurely.
- the partial flat coverage of the Filter body the danger in it, due to the covers and the resulting resulting reduced active filter area in the refrigerant circuit of a cooling device an undesirable back pressure arises.
- the invention is based on the object of having a sieve formed from sintered materials to improve simple constructive measures in such a way that the disadvantages of the State of the art in its assembly and fixations in the dryer housing are avoided.
- the inventive sintered sieve does not experience any of this Impairment caused by flat coverings available standing active filter area.
- the enclosure as a provided with the stop collar Receiving sleeve is formed.
- Such an enclosure means that the sieve is prone to brittle fracture at its edges can be provided with a bezel particularly easily and quickly without applying force, in which it already largely through the stop collar without additional measures is precisely positioned and thus functionally reliable.
- the holder for the sieve is particularly secure if after a next one preferred embodiment of the object of the invention is provided, which Holder for the sieve in the receiving sleeve through the retaining collar arranged thereon is effected.
- the retaining collar for holding the screen with a the holding sleeve connected to the holding sleeve is produced.
- the manufacture of an enclosure for mass production is particularly inexpensive, if provided according to an alternative embodiment of the object of the invention is that the border for the sieve is embedded by embedding its contour edges in injection or materials that can be processed by casting.
- a frame for a sieve is particularly easy to produce, if after another preferred embodiment of the object of the invention is provided that the Sieve has a circular cross-section, on the contour of the border encloses form-fitting and force-fitting.
- a particularly high filter effect through the sieve is achieved if after a last one preferred embodiment of the object of the invention is provided that the Sieve is enclosed in a liquid-tight manner on its peripheral edges by the border.
- a household refrigerator 10 is shown, the heat insulating Housing 11 with two attached and separately opening doors 12 and 13 is provided.
- the doors 12 and 13 are not thermally separated specified storage compartments of different temperatures accessible, their Fan temperature is maintained with the help of a refrigeration system 14.
- the refrigeration system 14 has two Refrigerant circuits I and II, which are controlled by an electrically controllable 3/2-way solenoid valve 15 can be acted upon with refrigerant.
- the electric controllable solenoid valve 15 is one at each of its outputs Refrigerant lines, not specified, with the solenoid valve 15 downstream flow restrictor 16 or 17, both in the form of a spirally wound capillary tube are trained.
- Each of the throttle devices 16 and 17 is on the output side with an injection point (not shown in detail) of a refrigerant evaporator 18 or 19 fluidically connected, which in parallel to each other lie.
- the outputs of the two evaporators 18 and 19 are through a Refrigerant line 20 merged, and to a common suction line 21 connected, which is connected to the suction side of a refrigerant compressor 22 is fluidly connected. This is on the output side to one Condenser 23 connected, which in turn with a Drying device in the form of a dryer cartridge 24 is connected.
- a Refrigerant line 20 merged, and to a common suction line 21 connected, which is connected to the suction side of a refrigerant compressor 22 is fluidly connected.
- This is on the output side to one Condenser 23 connected, which in turn with a Drying device in the form of a dryer cartridge 24 is connected.
- the Dryer cartridge 24, which is connected on the output side to the solenoid valve 15 is having a substantially tubular housing circular cylindrical cross-section, the tube wall 25 on its two End faces through non-cutting shaping, for example in the form of a Hammering down is formed into a connecting piece 26 or 27 Adjacent to the connecting piece 27 is an opposite of that indicated by the arrow symbolically indicated direction of refrigerant flow through the dryer cartridge 24 in the tube space 28 enclosed by its tube wall 25 as Dirt filter serving screen body 30 is provided, which on the inner tube surface the dryer cartridge 24 fluid-tightly fixed is.
- the screen body 30 comprises a sintered bronze, such as Sica grade, B100 formed sieve 31, which on its peripheral edges of a surrounds these contours following the contour 32, which the Sieve 31 encloses and fixed like a frame.
- the bezel 32 is in the present Embodiment generated by a receiving sleeve 33, which from a one-piece, plastically deformable metallic circular hollow cylinder is formed, which with its inner surface surrounds the surface of the sieve and which on one of its faces has a pre-shaped bend its lateral surface produced stop collar 34 towards its center axis having. This is essentially force-free in the hollow cylinder inserted sieve 31 with one of its end faces for fixing its correct mounting position.
- Fixing the sieve 31 within the Pipe space of the receiving sleeve 33 is the projecting over the height of the screen Non-cutting tube wall deformed such that a retaining collar 35 is formed which is together with the stop collar 34 and the pipe jacket wall of the receiving sleeve form the border 32, which the sieve 31 both form and non-positively engages so that it also encloses liquid-tight.
- the border 32 are suitable in addition to plastically deformable metals also high temperature resistant, plastically deformable plastics as well as cast and sprayable metals.
- the sieve 41 is of two parts assembled bezel 42, frame-like positively and non-positively enclosed.
- the border 42 which is liquid-tight on the inner tube wall Dryer cartridge is held by means of a frictional connection, has a first, in Form of a circular hollow cylinder formed receiving sleeve 43, which like the receiving sleeve 33 on one of its end faces with one to its center axis Executed bend 44 is provided, the inner surface as a contact surface serves for the screen body 41.
- Holding sleeve 45 is provided, which like the receiving sleeve 43 in the manner of a Circular hollow cylinder is formed and in which the tube wall one to her Has center axis directed bend 46.
- the holding sleeve 45 is dimensioned in terms of their diameter such that they fit into the receiving sleeve 43 is insertable and in the inserted state with its outer lateral surface abuts the inner tubular surface of the receiving sleeve 43.
- the holding sleeve 45 within the Receiving sleeve 43 is arranged, wherein the outer surface of the holding sleeve 45 arranged bend serves as a support surface for the sieve 41.
- the receiving sleeve 43 and the holding sleeve 45 are the receiving sleeve 43 and the holding sleeve 45 in the area their interacting tubular jacket wall with each other form and / or non-positively, for example by welding or by crimping, by connecting the two sleeves 43 and 45 which the sieve 41 at its contour enclosing form and force fit 42 is generated, which surrounds the sieve 41 in a liquid-tight manner.
- Border 32 are for border 42 in addition to plastically deformable metals, plastically deformable, heat-resistant plastics also conceivable metals, which have a lower plastic deformability, but are easily machinable.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Thermal Sciences (AREA)
- Physics & Mathematics (AREA)
- Power Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Drying Of Solid Materials (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
- Filtering Materials (AREA)
- Freezing, Cooling And Drying Of Foods (AREA)
- Devices That Are Associated With Refrigeration Equipment (AREA)
Description
- Fig. 1
- ein Zweitemperaturen-Haushalts-Kühlgerät, dessen thermisch voneinander getrennte Kammern übereinander angeordnete Fächer unterschiedlicher Temperatur mit separaten Türen verschließbar sind, in räumlicher Darstellung von vorne,
- Fig. 2
- in vereinfachter, schematischer Darstellung die zur Aufrechterhaltung der Temperatur in den Fächern des Zweitemperaturen-Kühlgerätes eingesetzte Kälteanlage mit einer in Reihenschaltung nach einem Verdichter angeordneten Trocknerpatrone
- Fig. 3
- die Trocknerpatrone, teilweise geschnitten, mit einem darin eingesetzten Sieb aus Sinterwerkstoffen, in annähernd natürlichem Maßstab und
- Fig. 4
- eine zu dem in Fig. 3 gezeigten Sieb alternative Ausführungsform für ein erfindungsgemäßes Sieb in Schnittdarstellung.
Claims (8)
- Kältegerät, insbesondere Haushaltskältegerät (10), wie Kühl- oder Gefriergeräte, mit wenigstens einem Kältekreislauf (I, II) innerhalb welchem eine Trocknerpatrone (24) angeordnet ist, in deren Patronengehäuse ein aus Sinterwerkstoffen gebildetes von Kältemittel durchflossenes Sieb (31, 41) angeordnet ist, welches an seinen Umfangsrändern von einer rahmenartigen Einfassung (32, 42) umgeben ist, mit welcher das Sieb (31, 41) im durchflossenen Querschnitt des Trocknergehäuses fixiert ist, dadurch gekennzeichnet, dass die Einfassung (32, 42) einen Anschlagbund (34, 44) und einen Haltebund (35, 46) aufweist, zwischen welchen das Sieb (31, 41) form- und kraftschlüssig gehalten ist.
- Kältegerät nach Anspruch 1, dadurch gekennzeichnet, dass die Einfassung (32, 42) als eine mit dem Anschlagbund (34, 44) versehene Aufnahmehülse (43) ausgebildet ist.
- Kältegerät nach Anspruch 2, dadurch gekennzeichnet, dass die Halterung für das Sieb (31, 41) in der Aufnahmehülse (33, 43) durch den daran angeordneten Haltebund (35, 46) bewirkt ist.
- Kältegerät nach Anspruch 3, dadurch gekennzeichnet, dass der Haltebund (46) zur Halterung des Siebes (41) durch eine mit der Aufnahmehülse (43) verbundene Haltehülse (45) erzeugt ist.
- Kältegerät nach Anspruch 3, dadurch gekennzeichnet, dass der Haltebund (35) zur Halterung des Siebes (31) durch spanlose Verformung der dem Anschlagbund (34) der Aufnahmehülse (33) gegenüberliegenden Stirnseite erzeugt ist.
- Kältegerät nach Anspruch 1, dadurch gekennzeichnet, dass die Einfassung (32, 42) für das Sieb (31, 41) durch ein Einbetten ihrer Konturenränder in spritz- oder gießtechnisch verarbeitbare Werkstoffe hergestellt ist.
- Kältegerät nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass das Sieb (31, 41) einen kreisförmigen Querschnitt aufweist, dessen Kontur die Einfassung (32, 42) zumindest weitestgehend konturenangepasst form- und kraftschlüssig umschließt.
- Kältegerät nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, dass das Sieb (31, 41) an seinen Umfangsrändern von der Einfassung (32, 42) flüssigkeitsdicht umschlossen ist.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19547744A DE19547744A1 (de) | 1995-12-20 | 1995-12-20 | Kältegerät |
DE19547744 | 1995-12-20 | ||
PCT/EP1996/004547 WO1997022841A1 (de) | 1995-12-20 | 1996-10-18 | Kältegerät, insbesondere haushalts-kältegerät |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0868638A1 EP0868638A1 (de) | 1998-10-07 |
EP0868638B1 true EP0868638B1 (de) | 2001-07-11 |
Family
ID=7780767
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP96934756A Expired - Lifetime EP0868638B1 (de) | 1995-12-20 | 1996-10-18 | Kältegerät, insbesondere haushalts-kältegerät |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP0868638B1 (de) |
CN (1) | CN1153031C (de) |
BR (1) | BR9612139A (de) |
DE (2) | DE19547744A1 (de) |
TR (1) | TR199800993T2 (de) |
WO (1) | WO1997022841A1 (de) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE20023972U1 (de) | 2000-12-15 | 2008-04-10 | BSH Bosch und Siemens Hausgeräte GmbH | Magnetventil für einen Kältemittelkreislauf |
DE10062666A1 (de) * | 2000-12-15 | 2002-06-20 | Bsh Bosch Siemens Hausgeraete | Magnetventil |
DE102004053272B3 (de) * | 2004-10-26 | 2006-04-27 | Visteon Global Technologies, Inc. Intellectual Property Department, Van Buren Township | Baugruppe für Kältemittel-Kreisläufe |
DE102006006731A1 (de) * | 2006-02-13 | 2007-08-16 | Danfoss A/S | Kühlanlage |
CN101765750B (zh) | 2007-06-12 | 2012-03-21 | 丹福斯有限公司 | 控制制冷剂分配的方法 |
DE102007028562B4 (de) * | 2007-06-19 | 2009-03-19 | Danfoss A/S | Kühlanlage |
DE102007028565A1 (de) | 2007-06-19 | 2008-12-24 | Danfoss A/S | Kühlanlage |
DE102007028563A1 (de) | 2007-06-19 | 2008-12-24 | Danfoss A/S | Kühlanlage |
DE102007028564A1 (de) | 2007-06-19 | 2008-12-24 | Danfoss A/S | Kühlanlage |
DE102010018543A1 (de) * | 2010-03-01 | 2011-09-01 | Liebherr-Hausgeräte Ochsenhausen GmbH | Kühl- und/oder Gefriergerät |
FR3116598A1 (fr) * | 2020-11-24 | 2022-05-27 | Valeo Systemes Thermiques | Circuit de fluide réfrigérant comprenant un filtre à particules |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE820133C (de) * | 1943-06-01 | 1951-11-08 | Gen Motors Corp | Trockenmittel |
US4078036A (en) * | 1975-07-24 | 1978-03-07 | Pittsfield Products, Inc. | Cartridge filter construction |
EP0594431B1 (de) * | 1992-10-23 | 1998-01-07 | Matsushita Refrigeration Company | Kältemittelkompressor und Kältesystem mit diesem Kompressor |
DE4242776A1 (de) * | 1992-12-17 | 1994-06-23 | Bosch Siemens Hausgeraete | Kühlgerät, insbesondere Mehrtemperaturen-Kühlgerät |
EP0666456B1 (de) * | 1994-02-04 | 1999-05-19 | Eaton Corporation | Sammler/Trockner für Kältemittel |
US5522204A (en) * | 1994-04-29 | 1996-06-04 | Stanhope Products Company | Desiccant container |
-
1995
- 1995-12-20 DE DE19547744A patent/DE19547744A1/de not_active Withdrawn
-
1996
- 1996-10-18 WO PCT/EP1996/004547 patent/WO1997022841A1/de active IP Right Grant
- 1996-10-18 DE DE59607284T patent/DE59607284D1/de not_active Expired - Lifetime
- 1996-10-18 TR TR1998/00993T patent/TR199800993T2/xx unknown
- 1996-10-18 BR BR9612139-4A patent/BR9612139A/pt not_active IP Right Cessation
- 1996-10-18 EP EP96934756A patent/EP0868638B1/de not_active Expired - Lifetime
- 1996-10-18 CN CNB961991488A patent/CN1153031C/zh not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
BR9612139A (pt) | 1999-10-13 |
CN1205767A (zh) | 1999-01-20 |
DE59607284D1 (de) | 2001-08-16 |
WO1997022841A1 (de) | 1997-06-26 |
TR199800993T2 (xx) | 1998-08-21 |
EP0868638A1 (de) | 1998-10-07 |
DE19547744A1 (de) | 1997-06-26 |
CN1153031C (zh) | 2004-06-09 |
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