CN101990619B - Refrigeration device - Google Patents
Refrigeration device Download PDFInfo
- Publication number
- CN101990619B CN101990619B CN200980112276.6A CN200980112276A CN101990619B CN 101990619 B CN101990619 B CN 101990619B CN 200980112276 A CN200980112276 A CN 200980112276A CN 101990619 B CN101990619 B CN 101990619B
- Authority
- CN
- China
- Prior art keywords
- evaporator
- evaporator section
- compartment
- cooled
- cooling
- 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 - Fee Related
Links
- 238000005057 refrigeration Methods 0.000 title claims abstract description 24
- 238000001816 cooling Methods 0.000 claims abstract description 31
- 238000007710 freezing Methods 0.000 claims abstract description 26
- 230000008014 freezing Effects 0.000 claims abstract description 26
- 239000003507 refrigerant Substances 0.000 claims description 22
- 229910052751 metal Inorganic materials 0.000 claims description 5
- 239000002184 metal Substances 0.000 claims description 5
- 229910000838 Al alloy Inorganic materials 0.000 claims description 4
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 239000004411 aluminium Substances 0.000 claims 1
- 238000002360 preparation method Methods 0.000 claims 1
- WYTGDNHDOZPMIW-RCBQFDQVSA-N alstonine Natural products C1=CC2=C3C=CC=CC3=NC2=C2N1C[C@H]1[C@H](C)OC=C(C(=O)OC)[C@H]1C2 WYTGDNHDOZPMIW-RCBQFDQVSA-N 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 238000000265 homogenisation Methods 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000010257 thawing 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
- F25B5/00—Compression machines, plants or systems, with several evaporator circuits, e.g. for varying refrigerating capacity
-
- 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
-
- 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
- F25D23/061—Walls with conduit means
-
- 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
- F25D25/00—Charging, supporting, and discharging the articles to be cooled
- F25D25/02—Charging, supporting, and discharging the articles to be cooled by shelves
- F25D25/028—Cooled supporting means
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Devices That Are Associated With Refrigeration Equipment (AREA)
Abstract
The invention relates to a refrigeration device (1) comprising an external housing (2), at least one refrigeration compartment (3) for storing refrigerated goods (5), and a cooling circuit (6) comprising an evaporator (4) for cooling the refrigerated compartment (3), wherein the evaporator (4) comprises a first evaporator section (7) and a second evaporator section (8), wherein the first evaporator section (7) is disposed outside of the refrigeration compartment (3) and wherein the second evaporator section (8) is disposed inside the refrigeration compartment (3), characterized by an especially good efficiency and a high cooling and freezing capacity.
Description
Technical Field
The invention relates to a refrigeration device comprising: a housing, at least one refrigerating compartment, in particular a freezing compartment, for storing cooled goods, and a cooling circuit with an evaporator for cooling the freezing compartment.
Background
A refrigeration device is an electrically or pneumatically operated device that provides a cooled interior space for storing cooled items. The temperature in the inner space is typically above 0 ℃, for example between +2 ℃ and +12 ℃. A freezer is a corresponding device for storing articles to be frozen and has an inner space with a temperature below 0 ℃, for example between-25 ℃ and-4 ℃. The combined refrigerator and freezer has at least two interior spaces or two mutually separated regions for different temperature ranges.
A refrigerating device of this type has a cooling circuit for cooling the respective interior space. The cooling circuit absorbs heat from the interior space via a heat exchanger thermally coupled to the interior space and transfers the heat into the surrounding area by means of a second heat exchanger. The cooling circuit may include a number of components, such as a condenser, an evaporator, valves, flow resistors, and refrigerant lines.
It is known how to arrange an evaporator for cooling a freezer compartment in the freezer compartment in close proximity to the goods to be cooled. The evaporator extends into the freezing compartment and divides it into sub-compartments. This type of evaporator can be implemented as a line tube evaporator and has the advantage that the cooled items in the freezer compartment are in direct cooling contact with the evaporator. The evaporator can be traversed by the cold air in the freezing compartment and is usually implemented as a grid formed by refrigerant lines.
It is also known how to arrange the evaporator so that the exterior surrounds a refrigerated or frozen compartment. In this case, no direct contact is made between the cooled item and the evaporator. The cooled article is cooled from the outside. The evaporator can be implemented as a wound evaporator, the refrigerant line of which surrounds the refrigerating or freezing compartment from the outside.
The level of efficiency is particularly important in order to operate a refrigeration device. Its refrigeration or freezing capacity is also very important.
The refrigeration or freezing capacity describes how strongly or quickly a refrigeration device can cool a cooled item of a particular mass and a particular heat capacity in a given time.
Disclosure of Invention
It is therefore an object of the present invention to provide a refrigeration device having a high level of efficiency and having a high refrigeration or freezing capacity.
The above object is achieved by a refrigeration device as described in the independent claim.
Further advantageous embodiments and refinements, which can each be applied individually or combined in any manner as appropriate, are the subject matter of the dependent claims or are explained in more detail in the following description.
The refrigeration device of the present invention includes: the refrigeration system comprises a housing, at least one refrigerated compartment for storing cooled goods, and a cooling circuit having an evaporator for cooling the refrigerated compartment, wherein the evaporator has a first evaporator section and a second evaporator section, wherein the first evaporator section is arranged outside the refrigerated compartment and the second evaporator section is arranged within the refrigerated compartment.
Combining an evaporator section disposed within the refrigerated compartment with an evaporator section disposed outside the refrigerated compartment improves the power consumption of the refrigeration unit, increases its efficiency level, and significantly increases its refrigeration or freezing capacity.
The refrigerated compartment is implemented as a freezer compartment in the case of a freezer, and the goods to be cooled are the goods to be frozen.
If the refrigerated and frozen goods should generally not be subjected to wide temperature variations and if in particular the frozen goods must generally not be subjected to an intermediate defrosting, it is particularly advantageous to combine the two evaporator sections with a first evaporator section located outside the refrigerated or frozen compartment and a second evaporator section located inside the refrigerated or frozen compartment.
Especially if hot goods to be frozen are placed in the freezing compartment already containing the frozen goods, a sufficient freezing capacity is particularly important to ensure that the frozen goods already located in the freezing compartment do not thaw.
The cooled goods are cooled not only from the outside of the refrigerating compartment but also from the inside of the refrigerating compartment by means of the two evaporator sections, but also with high refrigerating performance, a uniform temperature distribution can be achieved particularly quickly in the refrigerating or freezing compartment when the refrigerant at the outlet of the evaporator is sensible than the refrigerant at the inlet of the evaporator.
Direct thermal contact with the article being cooled is also achieved by that inward cold gas transfer, which will increase the efficiency level of the refrigeration unit.
In one embodiment variant, the first evaporator section surrounds the refrigerated or frozen compartment. Here, the first evaporator section may have a surface area corresponding to at least 50% of the outer surface area of the refrigerated or frozen compartment.
The first evaporator section can be embodied, for example, as a wound evaporator. The refrigerant line for conducting the evaporated refrigerant is here wound around the refrigerating or freezing compartment.
The refrigerated or freezing compartment can likewise be made of plastic or metal, such as aluminum or an aluminum alloy.
The first evaporator section is advantageously joined to the refrigerated or freezing compartment, creating an efficient heat conducting contact to minimize heat transfer resistance. The refrigerant line is for example soldered or welded to a refrigerating or freezing compartment made of metal.
In one embodiment variant, the first evaporator section and the second evaporator section are connected in series. The refrigerant circulating in the refrigerant circuit of the refrigerating device flows first through one evaporator section and then through the other evaporator section.
The first evaporator section and the second evaporator section can also be connected in parallel. This type of arrangement is advantageous in minimizing the flow resistance of the evaporator, which has a positive effect on the efficiency level of the evaporator, or of the cooling circuit as a whole.
In the case of a parallel connection, the refrigerant flow generated by the compressor is divided into two portions, wherein the first portion flows through the first evaporator section and the second portion flows through the second evaporator section. These two portions of refrigerant flow rejoin before the compressor.
In a further embodiment variant, the second evaporator section is embodied as a line-tube evaporator. A wire tube evaporator comprises a tube bent in a serpentine or spiral manner and generally lying in a single plane for conducting evaporated refrigerant. The tube has a structure such as a wire or sheet to increase the surface area and better transport cold air.
The second evaporator is advantageously substantially planar or two-dimensional to occupy as little space as possible in the refrigerated compartment. In particular, the cooling air in the refrigerated compartment may flow through the second evaporator.
In a particular embodiment variant, the second evaporator section divides the refrigeration compartment horizontally. Here, the second evaporator section with a flat embodiment can be arranged below a permanently installed rack for storing cooled items. The shelves are in particular embodied as grills for supporting the convection of cold air within the refrigerated compartment.
In a further embodiment variant, the refrigerated compartment has an interior for the items to be cooled, which interior is made of metal, in particular aluminum or an aluminum alloy. By making the interior of the container for the cooled goods metallic, an efficient transfer of cold from the first evaporator section to the cooled goods is possible.
In a further embodiment variant, the second evaporator section has heat transfer elements, in particular cooling lines, cooling ribs or fins. The surface area for conveying the cold air onto the refrigerated compartment is increased by means of the heat transfer element, whereby the heat transfer from the second evaporator section to the cooled goods is enhanced.
Drawings
In the following, further advantageous details and aspects, which can each be applied individually or combined in any appropriate manner, are explained in more detail with the aid of the drawings for the exemplary illustration of the invention.
Detailed Description
Fig. 1 is a schematic sectional view of a variant of an embodiment of a refrigerating device 1 according to the invention, seen from the side, with a housing 2 and a refrigerating compartment 3 in the housing, which is embodied in this case as a freezer compartment. The freezer compartment 3 is cooled by means of a cooling circuit 6. The cooled articles 5 may be stored in the freezer compartment 3 at a cooler temperature than the surrounding area.
The freezer compartment 3 is accessible via a door 13 and can be opened or closed. The freezer compartment 3 has a liner 9 for the articles to be cooled, said liner 9 being made of an aluminium alloy, thus facilitating the transfer of cold air from the first evaporator section 7 to the freezer compartment 3.
The cooling circuit 6 includes: a compressor 11 for compressing the refrigerant circulating in the cooling circuit 6, a condenser 12 for liquefying the compressed refrigerant to transfer heat to the surrounding area, and an evaporator 4 for evaporating the cooled and liquefied refrigerant to generate cold air for cooling the freezing compartment 3. The refrigerant lines 14 establish a fluid-conducting connection between the respective components 11, 12, 4 to form the cooling circuit 6.
The evaporator 4 has a first evaporator section 7 and a second evaporator section 8. The first evaporator section 7 is arranged outside the freezer compartment 3 and surrounds the freezer compartment 3. The surface of the first evaporator section 7 corresponds to about 80% of the outer surface of the freezing compartment 3 and is thus in intimate thermal contact with the freezing compartment 3. The first evaporator section 7 is embodied as a wound evaporator and comprises a refrigerant conducting line (not shown) wound around the freezer compartment 3.
The second evaporator section 8 is arranged within the freezer compartment 3 and divides the freezer shelf 3 horizontally. The second evaporator section 8 has heat transfer elements 10, which heat transfer elements 10 are in the form of cooling lines and cooling fins to improve the transfer of cold air to the freezer compartment 3 and thus to the cooled goods 5. The surface area of the second evaporator section 8 is significantly increased by the heat transfer elements 10, so that the heat transfer resistance is greatly reduced.
The first and second evaporator sections 7, 8 are connected in series in the cooling circuit 6. The refrigeration or freezing capacity of the refrigerating device 1 is improved by combining the two evaporator sections 7, 8, and the efficiency level of the refrigerating device 1 is increased by the improved homogenization of the temperature distribution within the freezing compartment 3.
The invention relates to a refrigeration device 1, comprising a housing 2, at least one freezer compartment 3 for storing cooled goods 5, and a cooling circuit 6 having an evaporator 4 for cooling the freezer compartment 3, wherein the evaporator 4 has a first evaporator section 7 and a second evaporator section 8, the first evaporator section 7 being arranged outside the freezer compartment 3, and the second evaporator section 8 being arranged within the freezer compartment 3, characterized in that it has a particularly good level of efficiency and a high refrigerating or freezing capacity.
List of reference numerals
1 refrigerating plant
2 outer cover
3 freezing compartment
4 evaporator
5 cooled articles
6 Cooling circuit
7 first evaporator section
8 second evaporator section
9 liner for cooled articles
10 Heat transfer element
11 compressor
12 condenser
13 door
14 coolant line
15 foam
Claims (8)
1. A refrigeration device (1) comprising: a housing (2), at least one refrigerating compartment (3) for storing cooled goods (5), and a refrigerant circuit (6) having an evaporator (4) for cooling the refrigerating compartment (3), wherein the evaporator (4) has a first evaporator section (7) and a second evaporator section (8), wherein the first evaporator section (7) is arranged outside the refrigerating compartment (3) in heat-conducting contact with the refrigerating compartment (3), the second evaporator section (8) is arranged within the refrigerating compartment (3),
it is characterized in that the preparation method is characterized in that,
the first evaporator section (7) surrounds the refrigerating compartment (3),
wherein the first evaporator section (7) is embodied as a wound evaporator and comprises a refrigerant conducting tube wound around the refrigerating compartment in heat-conducting contact therewith,
wherein,
a) the first evaporator section (7) and the second evaporator section (8) are connected in series such that the refrigerant circulating in the refrigerant circuit (6) of the refrigeration device flows first through one evaporator section and then through the other evaporator section, or
b) The first evaporator section (7) and the second evaporator section (8) are connected in parallel.
2. A cold appliance (1) according to claim 1, wherein the second evaporator section (8) is embodied as a wire-tube evaporator.
3. A cold appliance (1) according to claim 1, wherein the second evaporator section (8) divides the cold compartment (3) horizontally.
4. A cold appliance (1) according to claim 1, wherein the cold compartment (3) has an inner container (9) made of metal for the goods to be cooled.
5. A cold appliance (1) according to claim 1, wherein the second evaporator section (8) has a heat transfer element (10).
6. A refrigerating device (1) as claimed in claim 1, characterized in that the refrigerating compartment (3) is embodied as a freezing compartment.
7. A cold appliance (1) according to claim 4, wherein the metal is aluminium or an aluminium alloy.
8. A cold appliance (1) according to claim 5, wherein the heat transfer element (10) is a cooling wire, a cooling rib or a fin.
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102008018010 | 2008-04-09 | ||
| DE102008018010.6 | 2008-04-09 | ||
| DE102008021104A DE102008021104A1 (en) | 2008-04-09 | 2008-04-28 | Freezers |
| DE102008021104.4 | 2008-04-28 | ||
| PCT/EP2009/054095 WO2009124912A1 (en) | 2008-04-09 | 2009-04-06 | Refrigeration device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101990619A CN101990619A (en) | 2011-03-23 |
| CN101990619B true CN101990619B (en) | 2013-04-03 |
Family
ID=41060690
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200980112276.6A Expired - Fee Related CN101990619B (en) | 2008-04-09 | 2009-04-06 | Refrigeration device |
Country Status (6)
| Country | Link |
|---|---|
| EP (1) | EP2274560B1 (en) |
| CN (1) | CN101990619B (en) |
| DE (2) | DE102008021104A1 (en) |
| ES (1) | ES2428225T3 (en) |
| RU (1) | RU2505756C2 (en) |
| WO (1) | WO2009124912A1 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102010054450A1 (en) * | 2010-12-03 | 2012-06-06 | Liebherr-Hausgeräte Ochsenhausen GmbH | Fridge and / or freezer |
| US9988584B2 (en) * | 2013-02-15 | 2018-06-05 | Rival Technologies Inc. | Method of upgrading heavy crude oil |
| DE102014210679A1 (en) | 2014-06-05 | 2015-12-17 | BSH Hausgeräte GmbH | Refrigeration device with an evaporator |
| EP3330649B1 (en) | 2015-08-05 | 2020-12-23 | Hefei Midea Refrigerator Co., Ltd. | Refrigerator |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5251455A (en) * | 1992-08-14 | 1993-10-12 | Whirlpool Corporation | Energy efficient insulation system for refrigerator/freezer |
| CN1167243A (en) * | 1996-06-04 | 1997-12-10 | 大宇电子株式会社 | Cooling device with multiple evaporators |
| EP1541944A1 (en) * | 2003-12-11 | 2005-06-15 | Indesit Company s.p.a. | Refrigerating apparatus |
| CN1842684A (en) * | 2004-05-14 | 2006-10-04 | 多米蒂克有限公司 | Cooling system and method for making low temperature cooling system evaporator plate |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1946496A (en) * | 1930-12-20 | 1934-02-13 | Dole Refrigerating And Machine | Refrigerating apparatus |
| DE2060796A1 (en) * | 1970-12-10 | 1972-06-29 | Schmoele Metall R & G | One-piece coolant evaporator for fridges and freezers, freezers or the like. |
| SU954775A1 (en) * | 1980-07-23 | 1982-08-30 | за витель f L /. А. Г. Ротенберг | Cooling battery |
| SU1395916A1 (en) * | 1986-10-08 | 1988-05-15 | Предприятие П/Я В-8695 | Freezing chamber |
| DE102006015989A1 (en) * | 2006-04-05 | 2007-10-11 | BSH Bosch und Siemens Hausgeräte GmbH | Method for operating a refrigeration device with parallel-connected evaporators and refrigeration device therefor |
-
2008
- 2008-04-28 DE DE102008021104A patent/DE102008021104A1/en not_active Withdrawn
- 2008-04-28 DE DE200820018446 patent/DE202008018446U1/en not_active Expired - Lifetime
-
2009
- 2009-04-06 RU RU2010142205/06A patent/RU2505756C2/en not_active IP Right Cessation
- 2009-04-06 CN CN200980112276.6A patent/CN101990619B/en not_active Expired - Fee Related
- 2009-04-06 EP EP09730877.9A patent/EP2274560B1/en active Active
- 2009-04-06 ES ES09730877T patent/ES2428225T3/en active Active
- 2009-04-06 WO PCT/EP2009/054095 patent/WO2009124912A1/en active Application Filing
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5251455A (en) * | 1992-08-14 | 1993-10-12 | Whirlpool Corporation | Energy efficient insulation system for refrigerator/freezer |
| CN1167243A (en) * | 1996-06-04 | 1997-12-10 | 大宇电子株式会社 | Cooling device with multiple evaporators |
| EP1541944A1 (en) * | 2003-12-11 | 2005-06-15 | Indesit Company s.p.a. | Refrigerating apparatus |
| CN1842684A (en) * | 2004-05-14 | 2006-10-04 | 多米蒂克有限公司 | Cooling system and method for making low temperature cooling system evaporator plate |
Also Published As
| Publication number | Publication date |
|---|---|
| EP2274560A1 (en) | 2011-01-19 |
| DE102008021104A1 (en) | 2009-10-15 |
| ES2428225T3 (en) | 2013-11-06 |
| RU2505756C2 (en) | 2014-01-27 |
| EP2274560B1 (en) | 2013-06-19 |
| DE202008018446U1 (en) | 2014-02-06 |
| WO2009124912A1 (en) | 2009-10-15 |
| RU2010142205A (en) | 2012-05-20 |
| CN101990619A (en) | 2011-03-23 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: BSH HOME APPLIANCES CO., LTD. Free format text: FORMER NAME: BSH BOSCH SIEMENS HAUSGERAETE |
|
| CP01 | Change in the name or title of a patent holder |
Address after: Munich, Germany Patentee after: BSH Household Electrical Appliance Co., Ltd Address before: Munich, Germany Patentee before: BSH Bosch Siemens Household Appliances Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130403 Termination date: 20210406 |
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| CF01 | Termination of patent right due to non-payment of annual fee |