EP0732554B1 - Verdampfer, insbesondere für verdichterbetriebene Haushalts-Kältegeräte - Google Patents
Verdampfer, insbesondere für verdichterbetriebene Haushalts-Kältegeräte Download PDFInfo
- Publication number
- EP0732554B1 EP0732554B1 EP96101434A EP96101434A EP0732554B1 EP 0732554 B1 EP0732554 B1 EP 0732554B1 EP 96101434 A EP96101434 A EP 96101434A EP 96101434 A EP96101434 A EP 96101434A EP 0732554 B1 EP0732554 B1 EP 0732554B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- evaporator
- sections
- section
- refrigerant
- cooling performance
- 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
- 239000003507 refrigerant Substances 0.000 claims description 37
- 238000001816 cooling Methods 0.000 claims description 24
- 238000002347 injection Methods 0.000 claims description 24
- 239000007924 injection Substances 0.000 claims description 24
- 229910052751 metal Inorganic materials 0.000 claims description 7
- 239000002184 metal Substances 0.000 claims description 7
- 238000005057 refrigeration Methods 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 5
- 239000007788 liquid Substances 0.000 description 3
- 239000000243 solution Substances 0.000 description 2
- 238000011144 upstream manufacturing Methods 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000001427 coherent effect Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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
- F25B39/00—Evaporators; Condensers
- F25B39/02—Evaporators
- F25B39/022—Evaporators with plate-like or laminated elements
- F25B39/024—Evaporators with plate-like or laminated elements with elements constructed in the shape of a hollow panel
Definitions
- the invention relates to an evaporator, in particular for compressor-operated household appliances, with at least two evaporator sections serving as heat exchange surfaces different cooling capacity, which is the refrigerant delivered by a compressor is fed via injection points and which to a coherent sheet metal board are connected.
- an evaporator board is shown and described in DE-OS 38 04 863, which for use in a cooling device with three thermally separated cooling compartments Suitable, each through an evaporator section of the board-like evaporator is cooled.
- Each of the evaporator sections is one for reducing the pressure of one Compressor-assisted refrigerant serving injection tube, which in a Tongue of the evaporator board are arranged.
- the feed channels connected to the injection pipes for the refrigerant to the refrigerant channel arrangements of the individual evaporator sections are along a board area common to all three evaporator sections to the respective channel arrangement of the evaporator section led to overlap of the refrigerant supply channel sections is coming. Conditional on this The refrigerant supply channels are badly hit despite the injection point provided for each evaporator section an undesirable and not insignificant temperature influence that cooled by the respective evaporator section Freezer instead.
- the object of the invention is based on this state of the Technology to propose measures on the basis of which a temperature influence of the other evaporator section is avoided.
- each evaporator section Injection point Due to the decentralized, separately assigned to each evaporator section Injection point is a targeted application of the evaporator section to be supplied with refrigerant, without passing over one of the evaporator sections refrigerant supply channels leading away to the other evaporator section the temperature of this evaporator section unwanted influence.
- By controlling the individual evaporator sections is therefore an exact one controllable cooling of each by such an evaporator section cooled refrigerator compartment possible.
- the invention provides that three evaporator sections are provided, one of which has a higher cooling capacity than the other two and each of the others Evaporator sections switched up in series is.
- the evaporator section is formed by such an evaporator arrangement higher cooling capacity when the Evaporator section of lower cooling capacity always additional charged with liquid refrigerant and thus also cooled, so that the refrigeration demand cycles for the evaporator are higher Cooling capacity can be increased accordingly.
- each of the evaporator sections lower cooling capacity its injection point on the heat exchange surface in the vicinity of its from the evaporator section higher cooling capacity facing away from the evaporator section having.
- a particularly inexpensive and practical refrigeration connection of the two evaporator sections results if according to a further advantageous embodiment of the object the invention provides that the evaporator section higher cooling capacity with the other evaporator sections via a refrigerant channel Connection bridge are connected by refrigeration.
- a refrigerant supply is particularly simple connectable if according to a further preferred embodiment the subject matter of the invention provides that the evaporator sections of lower cooling capacity their injection point essentially in the middle of that of the Evaporator section of higher cooling capacity facing away from the evaporator section exhibit.
- the invention provides that the two evaporator sections lower cooling capacity to each other one provided between their adjacent section sides Retaining bridge are fixed.
- the only figure shows a board-like evaporator in stretched representation with three within the board area arranged evaporator sections.
- a board-like evaporator 10 for use in a non illustrated multi-temperature household refrigeration device is off two aluminum sheet metal plates joined together by pressure welding formed between which the refrigerant channel arrangement of the evaporator 10 is introduced.
- the evaporator 10 has three different areas large evaporator sections, of which the one with evaporator section equipped with the largest area share 11 is designed as a freezer compartment evaporator. This points a floor area 12, a rear wall area 13 and one Ceiling area 14, which serve as heat exchange surfaces and which for this purpose is filled with refrigerant Refrigerant channel 15 are provided.
- the flow of the refrigerant channel 15 serving refrigerant doing so in the ceiling area 14 by stamping one Throttle tube trained injection point 16 the refrigerant channel 15 of the evaporator section 11 is supplied.
- the evaporator section 11 is an evaporator section 17 upstream, which for cooling a Serves zero degree compartment and which via a connecting bridge 18 is mechanically connected to the former.
- a connecting bridge 18 For mechanical Connection serves only about a third of the length of the Connecting web 18, while the remaining length is saved from the evaporator section 11, so that the evaporator section 11, which due to its [-shaped Installation shape with its vertical on the floor area 12 to the level of the evaporator section 17 is largely arranged is thermally decoupled from this.
- the evaporator section 11 is not as here Embodiment subjected to a [-shaped shape is, but is designed as a flat circuit board, serves for thermal decoupling between the adjacent side edges the evaporator sections 11 and 17 a recess 19, which extends essentially over the entire width of the mutually adjacent evaporator section sides the evaporator sections 11 u. 17 extends.
- the Evaporator section 17 Compared to the immediately adjacent evaporator section sides is the Evaporator section 17 on its bottom in the installed position Transverse side approximately in the middle of its width with a Provide connection point.
- a throttle tube serving as an injection tube insertable, which is based on the connection point a soldered connection and is pressure-tight and which generates an injection point 20.
- a refrigerant channel 21 running in turns is connected, which with its turns extends into the Close area of the lateral edges of the evaporator section 17 extends and which along the connecting web 18 to towards its mechanical connection point on the evaporator section 11 is designed as a double channel. From there he moves over the rear wall area 13 to the ceiling area 14 out, where he at a in the direction of flow of Refrigerant after the injection point 16 lying connection point in the rear wall area 13 with the refrigerant channel arrangement of the evaporator section 11 is connected.
- the evaporator section 11 is another refrigeration, evaporator section for cooling in a refrigerator compartment 22 upstream, which via a connecting bridge 23 mechanically connected to the evaporator section 11 is.
- the connecting web 23 is on the connecting web 18 opposite long side of the evaporator board 10 provided and runs along the bottom region 12 and the evaporator section 17, the connecting web 23 on both to avoid thermal bridges through im Fixed narrow tabs spaced from each other is.
- the connecting web 23 is with a double channel executed refrigerant channel 25, which in the Connection area of the connecting web 23 to the evaporator section 11 again to a single-pass refrigerant channel is brought together and via the bottom region 12, the rear wall region 13 and the ceiling area 14, which is after the injection point 16 lying connection point in the rear wall area 13 is supplied.
- This is both on the evaporator section 17 and also connected to the evaporator section 22 and serves to fix and stabilize the evaporator section 22 during the manufacturing process of the evaporator 10, and after fixing the evaporator 10 to a Refrigerator is cut to ensure heat conduction between the To largely prevent evaporator sections 17 and 22 and thus the thermal decoupling between these two Evaporator sections 17 and 22 improve.
- Each of the evaporator sections 11, 17 and 22 is targeted via electrically controllable solenoid valves, not shown with liquid refrigerant, the solenoid valves depending on a refrigeration request from the refrigeration compartments of the refrigerator are controlled.
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Devices That Are Associated With Refrigeration Equipment (AREA)
Description
Claims (7)
- Verdampfer, insbesondere für Verdichter betriebene Haushaltsgeräte, mit wenigstens zwei als Wärmetauschflächen dienenden Verdampferabschnitten (11, 17, 22) unterschiedlicher Kälteleistung, welchen das von einem Kompressor geförderte Kältemittel über Einspritzstellen (16, 20, 26) zugeführt wird und welche zu einer zusammenhängenden Blechplatine verbunden sind, dadurch gekennzeichnet, daß jeder der Verdampferabschnitte (11, 17, 22) an seiner Wärmetauschfläche mit einer Einspritzstelle (16, 20, 26) für das Kältemittel ausgestattet ist und daß die Verdampferabschnitte (11, 17, 22) innerhalb der Blechplatine thermisch voneinander weitestgehend entkoppelt sind.
- Verdampfer nach Anspruch 1, dadurch gekennzeichnet, daß drei Verdampferabschnitte (11, 17, 22) vorgesehen sind, von denen einer eine höhere Kälteleistung als die beiden anderen aufweist und jedem der anderen Verdampferabschnitte (17, 22) in Reihenschaltung nachgeschaltet ist.
- Verdampfer nach einem der Ansprüche 1 oder 2, dadurch gekennzeichnet, daß die Verdampferabschnitte (11, 17, 22) thermisch durch Aussparungen (19, 27) in der Blechplatine zwischen den einzelnen Verdampferabschnitten (11, 17, 22) entkoppelt sind.
- Verdampfer nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß jeder der Verdampferabschnitte (17, 22) geringerer Kälteleistung seine Einspritzstelle an der Wärmetauschfläche (20, 26) im Nahbereich seiner vom Verdampferabschnitt (11) höherer Kälteleistung abgewandten Verdampferabschnittsseite aufweist.
- Verdampfer nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß der Verdampferabschnitt (11) höherer Kälteleistung mit dem jeweils anderen Verdampfer abschnitt (17, 22) über einen mit Kältemittelkanälen (15, 25) versehenen Verbindungssteg (18, 23) strömungstechnisch verbunden ist.
- Verdampfer nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß die Verdampferabschnitte (17, 22) geringerer Kälteleistung ihre Einspritzstelle (20, 26) im wesentlichen in der Mitte an der vom Verdampferabschnitt (11) höherer Kälteleistung abgewandten Verdampferabschnittsseite aufweisen.
- Verdampfer nach Anspruch 6, dadurch gekennzeichnet, daß die beiden Verdampferabschnitte (17, 22) geringerer Kälteleistung zueinander durch einen zwischen ihren benachbarten Abschnittsseiten vorgesehenen Haltesteg (28) fixiert sind.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19509571 | 1995-03-16 | ||
DE19509571A DE19509571A1 (de) | 1995-03-16 | 1995-03-16 | Verdampfer, insbesondere für kompressorbetriebene Haushalt-Kältegeräte |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0732554A2 EP0732554A2 (de) | 1996-09-18 |
EP0732554A3 EP0732554A3 (de) | 1997-03-12 |
EP0732554B1 true EP0732554B1 (de) | 2000-11-22 |
Family
ID=7756863
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP96101434A Expired - Lifetime EP0732554B1 (de) | 1995-03-16 | 1996-02-01 | Verdampfer, insbesondere für verdichterbetriebene Haushalts-Kältegeräte |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0732554B1 (de) |
DE (2) | DE19509571A1 (de) |
ES (1) | ES2153506T3 (de) |
TR (1) | TR199600151A2 (de) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IT1296073B1 (it) * | 1997-11-06 | 1999-06-09 | Whirlpool Co | Metodo per ottenere un evaporatore monopezzo per circuiti frigorigeni ed evaporatore ottenuto |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB856477A (en) * | 1958-06-30 | 1960-12-14 | Gen Motors Corp | Improvements in or relating to refrigerators, and to methods of making evaporators therefor |
DE1809673A1 (de) * | 1968-11-19 | 1970-06-04 | Ver Deutsche Metallwerke Ag | Plattenverdampfer mit mehreren Waermeaustauschern |
DE3741140C1 (en) * | 1987-12-04 | 1989-06-08 | Schmoele Metall R & G | Cooling plate |
DE3804863A1 (de) * | 1988-02-17 | 1989-08-31 | Schmoele Metall R & G | Kuehlplatine fuer einen kuehlschrank |
DE4141641A1 (de) * | 1991-12-17 | 1993-06-24 | Bosch Siemens Hausgeraete | Zweitemperaturen-einkreiskuehlgeraet |
DE4242776A1 (de) * | 1992-12-17 | 1994-06-23 | Bosch Siemens Hausgeraete | Kühlgerät, insbesondere Mehrtemperaturen-Kühlgerät |
DE29504538U1 (de) * | 1995-03-16 | 1995-05-18 | Bosch-Siemens Hausgeräte GmbH, 81669 München | Verdampferanordnung, insbesondere verdichterbetriebene Haushalts-Kältegeräte |
-
1995
- 1995-03-16 DE DE19509571A patent/DE19509571A1/de not_active Withdrawn
-
1996
- 1996-02-01 ES ES96101434T patent/ES2153506T3/es not_active Expired - Lifetime
- 1996-02-01 EP EP96101434A patent/EP0732554B1/de not_active Expired - Lifetime
- 1996-02-01 DE DE59606153T patent/DE59606153D1/de not_active Expired - Lifetime
- 1996-02-27 TR TR96/00151A patent/TR199600151A2/xx unknown
Also Published As
Publication number | Publication date |
---|---|
TR199600151A2 (tr) | 1996-11-21 |
EP0732554A3 (de) | 1997-03-12 |
DE59606153D1 (de) | 2000-12-28 |
ES2153506T3 (es) | 2001-03-01 |
DE19509571A1 (de) | 1996-09-19 |
EP0732554A2 (de) | 1996-09-18 |
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