DE102013215825A1 - Refrigeration device with an evaporator - Google Patents

Abstract

The invention relates to a refrigeration device with an evaporator (200), wherein the evaporator (200) has a carrier (202) and a tube (204) arranged on the carrier (202) for guiding refrigerant, wherein the tube (204) on the Carrier (202) has a first pipe region (I), in the operating position of the refrigeration device (100) substantially in a first transport direction, in particular from top to bottom, and a second pipe region (II), which is substantially in a second transport direction , in particular from bottom to top, can flow through, has. According to the invention, the first tube region (I) has a section (210a, 212a, 210b, 212b) and the second tube region (II) has a section (214a, 214b) which is nested on the carrier (202).

Description

The invention relates to a refrigeration device having an evaporator, the evaporator having a carrier and a tube arranged on the carrier for guiding refrigerant, wherein the tube on the carrier has a first tube region, which in the operating position of the refrigerating device essentially in a first transport direction, in particular from top to bottom, can be flowed through, and a second tube region, which in a second transport direction, in particular from bottom to top, can be flowed through substantially.

Refrigeration appliances, in particular designed as household appliances refrigerators are known and are used to housekeeping in households or in the catering sector to store perishable food and / or drinks at certain temperatures.

Such refrigerators have a so-called tube plate evaporator, which has a carrier, on which a pipe through which refrigerant flows is arranged. The tube has a meandering course on the carrier. In this case, the course of the tube is guided so that the tube of the evaporator has juxtaposed meander-shaped sections from the top to the middle of the carrier, wherein the tube is continued from the middle of the carrier directly without meander to the lower edge of the carrier. From there, the pipe meanders from bottom to top, i. to the middle, continued. This pipe run leads to a larger used evaporator surface, which is available at the beginning of the cooling. After the upper half of the tube is flowed through by coolant, it is thus jumped directly to the still very warm bottom edge of the evaporator. This at the beginning of the cooling phase improved land use of the evaporator leads to a higher in the initial phase evaporation temperature and thus to a higher efficiency of the refrigerator. However, this arrangement of the tube on the carrier results in uneven cooling of the carrier.

It is therefore the object underlying the invention to provide a refrigerator with an evaporator, which can be cooled more uniformly.

This object is achieved by the subject matter having the features of the independent claim. Advantageous developments are subject of the dependent claims, the description and the drawings.

The present invention is based on the finding that the cooling of the carrier can be further uniformed by a nested guide of the tube. This can be realized, for example, by a refrigeration device with an evaporator, in which the first tube region has a section and the second tube region has a section which is nested on the carrier. An interleaving of the sections of the tube region is understood to mean that the sections of the first tube region and of the second tube region together form a nested section with at least two tube regions with a transport direction of refrigerant in the tube which is different from the guidance of the tube regions. As a result, the technical advantage is achieved that a uniform cooling of the carrier is effected by the nesting. Thus, the energy efficiency of the refrigerator can be further increased because the existing evaporator surface is used even better. Here, a tube is understood to mean a component that is designed as an elongate hollow body having a length which is greater than the diameter of the tube. Such a tube is made of an inflexible material, i. it does not deform during operation. Such a tube may be made of metal or plastic. In this case, such a tube can be seamless or a connecting seam, e.g. having a weld, be formed.

A refrigeration device is understood in particular to be a household appliance, that is to say a refrigeration device that is used for household purposes in households or in the gastronomy sector, and in particular serves to store food and / or drinks at specific temperatures, such as, for example, a refrigerator, a freezer, a refrigerator - / Freezer, a freezer or a wine fridge.

According to a first aspect, the invention relates to a refrigeration device with an evaporator, wherein the evaporator comprises a carrier and a tube arranged on the support for carrying refrigerant, wherein the tube on the support a first pipe portion which in the operating position of the refrigerator in a first Transport direction can be flowed through and a second tube portion which can be flowed through in a second transport direction has. The first tube portion has a portion and the second tube portion has a portion, the portions being nested on the carrier.

The first transport direction can in the operating position of the refrigerator from top to bottom, ie in the direction of gravity run. The second transport direction can, in the operating position of the refrigeration device, run from bottom to top, ie opposite to the direction of gravity. This ensures that the refrigerant from an injection point, in the first tube area is arranged, is guided downwards, and is guided by a refrigerant collecting point in the second pipe region, that is below, upwards.

In an advantageous embodiment it is provided that the first tube region has two sections, the second tube region having a section which is arranged adjacent to the two sections of the first tube region. This achieves the technical advantage that the tube can be guided on the carrier in a particularly simple manner and without particularly long connecting sections between the first and second sections. So the tube length can be short and thus material can be saved.

In a further advantageous embodiment, it is provided that the portion of the second tube region, which is arranged adjacent to the two sections of the first tube region, can be flowed through in the first transport direction. Thereby, the technical advantage is achieved that first outer portions of the carrier and finally a central portion of the carrier, which is adjacent to the other two portions of the carrier is cooled from top to bottom. Thus, a particularly strong cooling can be achieved at the beginning in the first and second sections and then the central section from above.

In a further advantageous embodiment, it is provided that the portion of the second tube region, which is arranged adjacent to the two sections of the first tube region, in the second transport direction can be flowed through from top to bottom. Thereby, the technical advantage is achieved that first outer portions of the carrier and finally a central portion of the carrier, which is adjacent to the other two portions of the carrier is cooled from bottom to top. Thus, a particularly strong cooling can be achieved at the beginning in the first and second sections and then the middle section from below.

In a further advantageous embodiment, it is provided that the carrier is plate-shaped. As a result, the technical advantage is achieved that the carrier has a particularly large area on which the tube is arranged. So a particularly powerful evaporator can be provided.

In a further advantageous embodiment, it is provided that the first tube region can be flowed through substantially in the direction of gravity. Thereby, the technical advantage is achieved that in this pipe area no promotion of refrigerant by a conveyor, such as a pump is needed. This simplifies the structure.

In a further advantageous embodiment, provision is made for the tube to have a third tube region on the carrier which can be flowed through essentially in a transport direction which differs from the transport direction in the first tube region and the transport direction in the second tube region. As a result, the technical advantage is achieved that the cooling of the carrier is further uniform.

In a further advantageous embodiment, it is provided that the transport direction in the first tube region and / or the transport direction in the second tube region extend within manufacturing tolerances at a right angle to the transport direction in the third tube region. Manufacturing tolerances mean the usual tolerances occurring within a production, for example 3%, 5% or 10%. As a result, the technical advantage is achieved that the tube can be easily arranged on the carrier. This simplifies the production.

In a further advantageous embodiment, one of the sections 2 to 10, in particular 3 to 5 meanders on. This achieves the technical advantage that one of the sections can be assigned to one of several refrigeration compartments of the refrigeration device, so that e.g. a refrigeration compartment designed as a freezer, a first section of 2 to 5, e.g. 3, meanders that cools when commissioning the evaporator first.

In one advantageous embodiment, within production tolerances of one of the sections, one half, in particular one third, in particular one quarter, in particular one eighth, of the carrier surface of the carrier covers. Manufacturing tolerances mean the usual tolerances occurring within a production, for example 3%, 5% or 10%. As a result, the technical advantage is achieved that on the one hand one of the sections can be assigned to one of several cold surfaces of the refrigeration device, but also several sections can be assigned to a single refrigeration compartment, so that a uniform cooling of several cold surfaces of the refrigerator is ensured.

In an advantageous embodiment, at least two meanders of one of the sections are arranged above a coolant level, which is formed by refrigerant accumulated in idle times of the evaporator. As a result, the technical advantage is achieved that start-up losses are reduced, since in idle times of the evaporator accumulated refrigerant first undergoes a heat exchange before it leaves the evaporator.

In a further advantageous embodiment, at least two meanders of a section are arranged in front of an outlet of the evaporator, which are arranged above a coolant level which is formed by refrigerant accumulated in down times of the evaporator. As a result, the technical advantage is achieved that at a compressor start of the refrigerator foaming and cracked in the direction of compressor refrigerant still undergoes some heat exchange in the evaporator before it enters a suction pipe and thus is no longer available for heat exchange. Thus, cold losses can be reduced.

In a further advantageous embodiment, a connecting section of the pipe connects portions of the first pipe region to carry refrigerant. As a result, the technical advantage is achieved that no additional components for the refrigerant-carrying compound of the sections are required. This simplifies the production.

In a further advantageous embodiment, a connecting section of the pipe connects portions of the second pipe section to carry refrigerant. As a result, the technical advantage is achieved that no additional components for the refrigerant-carrying compound of the sections are required. This simplifies the production.

In a further advantageous embodiment, the carrier has a first extension direction and a second extension direction, wherein the length in the first extension direction is greater than the width of a second extension direction, and a meander has in one of the sections a straight tube section whose longitudinal direction is within Manufacturing tolerances in the direction of extension of the wearer is. Manufacturing tolerances mean the usual tolerances occurring within a production, for example 3%, 5% or 10%. This achieves the technical advantage that the tube can be arranged in a space-saving manner on a carrier, wherein the carrier is e.g. rectangular shape having a longitudinal and a transverse side is formed, wherein extending the pipe section of the meander in the direction of the width of the carrier. As a result, the technical advantage is achieved that with a single tool carrier different evaporator heights of the evaporator can be realized, which reduces the investment costs for manufacturing.

In a further advantageous embodiment, the evaporator is designed as a ToS evaporator. As a result, the technical advantage is achieved that the evaporator has a particularly simple structure and therefore can be manufactured with little effort.

Further embodiments will be explained with reference to the accompanying drawings. Show it:

1 a front view of a refrigerator,

2 a schematic representation of an evaporator,

3 another schematic representation of an evaporator,

4 another schematic representation of an evaporator,

5 another schematic representation of an evaporator, and

6 another schematic representation of an evaporator.

The 1 shows a refrigerator according to an embodiment for a refrigerator 100 with an upper refrigerator door 102 and a lower refrigerator door 104 on its refrigerator front. The refrigerator is used, for example, for cooling food and includes a refrigerant circuit with an evaporator (in 1 not shown), a compressor (not shown), a condenser (not shown) and a throttle body (not shown).

The evaporator is designed as a heat exchanger, in which, after expansion, the liquid refrigerant is removed by absorbing heat from the medium to be cooled, i. Air is evaporated inside the refrigerator.

The compressor is a mechanically driven component that draws refrigerant vapor from the evaporator and expels it at higher pressure to the condenser.

The condenser is designed as a heat exchanger in which, after compression, the vaporized refrigerant is released by heat to an external cooling medium, i. the ambient air is liquefied.

The throttle body is a device for the continuous reduction of the pressure by reduction in cross section.

The refrigerant is a fluid that is used for heat transfer in the refrigeration system and that absorbs heat at low temperatures and low pressure of the fluid and releases heat at higher temperature and pressure of the fluid, usually including changes in state of the fluid.

With the upper refrigerator door 102 can be an upper cold compartment 106 be opened, according to one embodiment is designed as a freezer. With the lower refrigerator door 104 can a lower cold compartment 108 be opened, which is formed according to an embodiment as a refrigerating compartment.

The 2 shows an evaporator 200 ,

According to one embodiment, the evaporator 200 designed as a tube plate evaporator. Tube plate evaporators are also referred to as ToS evaporators. The evaporator 200 has a plate-shaped carrier 202 which, according to one embodiment, has a first extension direction E1 and a second extension direction E2. According to one embodiment, the first extension direction E1 extends in refrigeration appliance high direction Z in installation position of the evaporator 200 in the refrigerator 100 while the second extension direction E2 is in refrigerator width direction Y in the installation position of the evaporator 200 in the refrigerator 100 extends.

According to one embodiment, the carrier 202 a length in the direction of the first extension direction E1, which is greater than the width of the carrier 202 in the direction of the second extension direction E2. Thus, according to one embodiment, the carrier 202 rectangular shaped.

On the carrier 202 is a pipe 204 with an inlet 202 and an outlet 208 arranged, which is flowed through in the passage direction D of refrigerant. The pipe 204 runs with a plurality of meanders 218 on the carrier 202 ,

A meander 218 includes straight pipe sections 222 with bow sections 240 are connected. According to one embodiment, the straight pipe sections extend 238 within manufacturing tolerances with their longitudinal direction L in the direction of the second extension direction E2. Thus, the straight pipe sections extend 238 in refrigerator width direction Y.

According to one embodiment, the tube 204 on the carrier 202 a first pipe section I on, in the operating position of the refrigerator 100 is traversed substantially from top to bottom. Furthermore, the tube points 204 on the carrier 202 a second pipe sections II which flows essentially from bottom to top. It will be the first pipe area I flows through in the direction of a first transport direction of refrigerant, and the second pipe portion II is flowed through in the direction of a second transport direction of refrigerant, wherein the first transport direction is opposite to that of the second transport direction.

The pipe 204 is on the carrier 202 meandering arranged so that there are a plurality of sections 210a . 210b . 212a . 212b . 214a . 214b forms, which - as will be explained - meandering in the first transport direction and in the second transport direction on the support 202 extend. In this case, according to one embodiment, the sections extend 210a . 210b . 212a . 212b in the first transport direction and the sections 214a . 214b in the second transport direction.

In this case, according to one embodiment, the adjacent sections 210a . 212a . 214a nested together and form a first nested section 236 , Furthermore, the adjacent sections 210b . 212b . 214b nested to form a second nested section 238 ,

According to one embodiment, the tube is 204 on the carrier 202 in the first section 210a of the first pipe section I extending meandering extending in the first transport direction extending. In this case, according to one embodiment, the first transport direction runs along an axis which extends in refrigeration device vertical direction Z, namely within production tolerances from top to bottom.

To the section 210a closes a connecting section 224 of the pipe 204 on, which extends in accordance with an embodiment in refrigeration device high Z direction.

To the connecting section 224 closes the second section 212a of the first pipe section I in which the pipe 204 meandering in the first transport direction is arranged extending.

To the section 212a closes another connection section 226 of the pipe 204 on, which extends in accordance with an embodiment in refrigeration device high Z direction.

To the connecting section 226 closes the third section 210b of the first pipe section I in which the pipe 204 meandering in the first transport direction is arranged extending.

To the section 210b closes another connection section 228 of the pipe 204 on, which extends in accordance with an embodiment in refrigeration device high Z direction.

To the connecting section 228 closes the fourth section 212b of the first pipe section I in which the pipe 204 meandering in the first transport direction is arranged extending.

To the section 212b closes another connection section 230 of the pipe 204 on, which extends in accordance with an embodiment in refrigeration device high Z direction.

To the connecting section 230 closes the first section 214a of the second pipe section II in which the pipe 204 is arranged meandering in the second direction of transport. In this case, according to one embodiment, the second transport direction extends in refrigeration appliance high-direction Z, and indeed within manufacturing tolerances from bottom to top.

To the second section 214a closes another connection section 232 of the pipe 204 on, which extends in accordance with an embodiment in refrigeration device high Z direction.

To the connecting section 232 closes another section 216 of the second pipe section II in which the pipe 204 meandering in the second transport direction is arranged to extend.

To the next section 216 closes another connection section 234 of the pipe 204 on, which extends in accordance with an embodiment in refrigeration device high Z direction.

To the connecting section 234 closes the second section 214b of the second pipe section II in which the pipe 204 is arranged meandering in the second direction of transport.

From the second section 214b then is the pipe 204 to the outlet 208 guided.

Furthermore, according to an embodiment, the connecting portions extend 224 - 234 in refrigerator high Z.

Thus, the first nested section includes 236 according to one embodiment, the section 210a , the section 212a and the section 214a , where the section 214a in the flow direction D of refrigerant through the pipe 204 between the section 210a and the section 212a is arranged. Thus, the section 214a adjacent to the section 210a and the section 212a arranged.

The second nested section 238 according to one embodiment comprises the section 210b , the section 212b and the section 214b as well as the further section 216 , where the section 214b in the flow direction D of refrigerant through the pipe 204 between the section 210b and the section 212b is arranged. Thus, the section 214b adjacent to the section 210b and the section 212b arranged.

Through the nested sections 236 . 238 becomes a comparative cooling of the wearer 202 causes and thus the energy efficiency of the refrigerator 100 increased.

The sections 210a . 210b . 212a . 212b . 214a . 214b according to one embodiment, have one to ten, eg one to five, meanders in a portion of the carrier 202 to cause a uniform cooling. According to one embodiment, the sections cover 210a . 210b . 212a . 212b . 214a . 214b different sized surface portions of the support surface of the carrier 202 , So covers the second section 212b a quarter of the support surface of the carrier 202 , the sections 210a . 212a and 214a a third, and the sections 210b . 214b such as 216 one eighth of the support surface of the carrier. So can the individual sections 210a . 210b . 212a . 212b . 214a . 214b to the respective size of the assigned cold shelves 106 . 108 be adjusted.

The 2 also shows that two meanders 218 are arranged above a coolant level formed by refrigerant, resulting in downtime of the evaporator 200 accumulates. There must be accumulated refrigerant before it goes to the outlet 208 passes through the sections 214b . 216 and 214a flow where it undergoes heat exchange.

Further shows 2 in that, according to one embodiment, two meanders 218 in front of the outlet 208 are arranged. This ensures that at a start of the compressor, the foaming, torn in the direction of the compressor refrigerant still some heat exchange in the evaporator 200 learns before going to the outlet 208 arrives.

The 3 shows the evaporator 200 in which the pipe 204 between an inlet 206 and an outlet 208 in the section 210a of the first pipe section I on the carrier 202 meandering in the first transport direction is arranged to extend. In this case, according to one embodiment, the first transport direction extends along an axis which extends in refrigeration appliance high-direction Z, namely within top-down fault tolerances.

To the first section 210a closes a connecting section 224 of the pipe 204 to a refrigerant-carrying connection to the section 214a of the second pipe section II forms, in which the pipe 204 meandering in the second transport direction is arranged to extend. The connecting section 224 extends according to a Embodiment in refrigerator high-Z, and indeed within manufacturing tolerances from top to bottom.

To the second section 214a closes according to an embodiment immediately another section 300 a third pipe section III in which the pipe 204 running on the support 202 is arranged meandering in a third transport direction. In this case, according to one embodiment, the third transport direction extends along an axis which extends in refrigeration device width direction Y, within right-to-left production tolerances.

While the first transport direction and the second transport direction extend along an axis which extends in refrigeration device Z direction, wherein the first transport direction and the second transport direction are oppositely aligned, the third transport direction extends in refrigerator width direction Y. Thus, the first transport direction and the second transport direction and the third transport direction in different directions. The 3 shows that the third transport direction is at a right angle to the first extension direction E1 and the second extension direction E2.

The nested section 236 according to one embodiment comprises the section 210a , the section 214a and the section 300 , where the section 300 in the flow direction D of refrigerant through the pipe 204 between the section 210a and the section 214a is arranged. Thus, the section 300 adjacent to the section 210a and the section 214a arranged.

The nested section 236 Can be used to cool both an upper refrigeration compartment 106 as well as for cooling a lower refrigeration compartment 108 used, for example, one of the sections 210a or 212a a freezer is assigned and the other sections 212a and 300 or 210a and 300 associated with a refrigerated compartment.

The 4 shows the evaporator 200 that the first nested section 236 and the second nested section 238 having.

In the first section 210a of the first pipe section I this runs on the carrier 202 arranged pipe 204 meandering in the first transport direction, wherein the connecting portion 224 of the pipe 204 a refrigerant-carrying connection to the section 212a of the first pipe section I manufactures in which the pipe 204 on the carrier 202 is arranged meandering continuing in the first transport direction.

A connecting section 228 of the pipe 204 provides a refrigerant conducting connection to the section 212b forth, wherein the connecting portion 228 extends according to an embodiment in refrigerator high Z.

In the section 212b of the first pipe section I this runs on the carrier 202 arranged pipe 204 meandering in the first transport direction.

To the section 212b closes the connecting section 230 of the pipe 204 at, wherein the connecting portion 230 extends according to an embodiment in refrigerator high Z.

To the connecting section 230 the section closes 214a of the second pipe section II in which the pipe 204 on the carrier 202 is arranged meandering in the second transport direction.

To the section 214a closes the connecting section 232 of the pipe 204 at, wherein the connecting portion 232 extends according to an embodiment in refrigerator high Z. Furthermore, two meanders form 218 the second section 214b of the second pipe section II ,

To the connecting section 232 closes the third section 300 of the third pipe section III in which the pipe 204 meandering in the third transport direction.

The third section 300 is refrigerant leading to the outlet 208 connected.

The nested section 236 according to one embodiment comprises the section 210a , the section 212a and the section 300 , where the section 300 in the flow direction D of refrigerant through the pipe 204 between the section 210a and the section 212a is arranged. Thus, the section 300 adjacent to the section 210a and the section 212a arranged.

The second nested section 238 includes the section 210b , the section 212b and the section 214b , where the section 214b in the flow direction D of refrigerant through the pipe 204 between the section 210b and the section 212b is arranged. Thus, the section 214b adjacent to the section 210b and the section 212b arranged.

The 4 shows that in the first nested section 236 all three transport directions are different. According to one embodiment, the three transport directions are within Manufacturing tolerances arranged at right angles to each other.

The first nested section 236 can the upper refrigeration compartment 106 be assigned during the second nested section 238 the lower refrigeration compartment 108 can be assigned.

The 5 shows the evaporator 200 in which the pipe 204 between the inlet 206 and the outlet 208 in the section 210a of the first pipe section I on the carrier 202 meandering in the first transport direction.

To the first section 210a closes the connecting section 224 of the pipe 204 to a refrigerant-carrying connection to a first section 300 of the second pipe section II forms, in which the pipe 210a meandering in the second transport direction is arranged to extend. The connecting section 224 extends according to one embodiment in refrigeration device high Z.

To the section 300 closes the connecting section 230 at, wherein the connecting portion 230 extends according to an embodiment in a first section in the flow direction D in refrigeration device high direction Z, and extends in a second section in the flow direction D in refrigerator width direction Y.

To the connecting section 230 closes the second section 500 of the second pipe section II in which the pipe 204 on the carrier 202 is arranged meandering in the second transport direction.

According to one embodiment, the second transport direction extends in refrigeration device width direction Y, namely within production tolerances from right to left. By contrast, the first transport direction extends I according to one embodiment in refrigeration device high-Z, and indeed within manufacturing tolerances from top to bottom. Thus, the first transport direction is different from the second transport direction. According to one embodiment, the first transport direction and the second transport direction are arranged at right angles to each other within manufacturing tolerances.

The sections 210a . 300 and 500 make up the nested section 236 , where the section 500 in the flow direction D of refrigerant through the pipe 204 between the section 210a and the section 300 is arranged. Thus, the section 500 adjacent to the section 210a and the section 300 arranged.

The nested section 236 can be used to cool both a refrigerator compartment and a freezer compartment, for example one of the sections 210a or 300 the freezer is assigned and the other sections 300 and 500 or 210a and 500 associated with the refrigerated compartment.

The 6 shows the evaporator 200 in which the pipe 204 between the inlet 206 and the outlet 208 in the first section 210a of the first pipe section I on the carrier 202 meandering in the first transport direction is arranged to extend.

To the section 210a closes the connecting section 224 of the pipe 204 to a refrigerant-carrying connection to the section 214a of the second pipe section II forms, in which the pipe 204 meandering in the second transport direction is arranged to extend. The connecting section 224 extends according to one embodiment in refrigeration device high Z.

To the section 214a closes the connecting section 230 of the pipe 204 at, wherein the connecting portion 230 extends according to an embodiment in the flow direction D in refrigeration device high Z direction. According to one embodiment, the connecting portion extend 224 and the connecting section 230 partially parallel to each other.

To the connecting section 224 closes the second section 212a of the first pipe section I in which the pipe is on the support 202 is arranged meandering in the first transport direction.

The sections 210a . 212a and 214a make up the nested section 236 , where the section 212a in the flow direction D of refrigerant through the pipe 204 between the section 210a and the section 214a is arranged. Thus, the section 212a adjacent to the section 210a and the section 214a arranged.

The nested section 236 can be used to cool both a refrigerator compartment and a freezer compartment, for example one of the sections 210a or 212a the freezer is assigned and the other sections 212a and 214a or 210a and 214a associated with the refrigerated compartment.

LIST OF REFERENCE NUMBERS

100

 The refrigerator

102

 upper refrigeration door

104

 lower refrigerator door

106

 Upper cold compartment

108

 lower cold compartment

200

 Evaporator

202

 carrier

204

 pipe

206

 inlet

208

 outlet

210a

 section

210b

 section

212a

 section

212b

 section

214a

 section

214b

 section

216

 section

218

 meander

220

 straight pipe section

222

 arc section

224

 connecting portion

226

 connecting portion

228

 connecting portion

230

 connecting portion

232

 connecting portion

234

 connecting portion

236

 first nested section

238

 second nested section

300

 section

500

 section

I

 first pipe area

II

 second pipe section

II '

 second pipe section

II ''

 second pipe section

III

 third pipe area

III '

 third pipe area

III ''

 third pipe area

D

 Flow direction

E1

 first extension direction

E2

 second extension direction

L

 longitudinal direction

X

 Freezers-depth direction

Y

 Freezers width direction

Z

 Freezers-high direction

Claims (15)

Refrigeration appliance ( 100 ) with an evaporator ( 200 ), whereby the evaporator ( 200 ) a carrier ( 202 ) and one on the carrier ( 202 ) arranged pipe ( 204 ) for guiding refrigerant, wherein the pipe ( 204 ) on the support ( 202 ) a first pipe region ( I ), which in the operating position of the refrigeration device ( 100 ) in a first transport direction, in particular from top to bottom, can be flowed through and a second tube region ( II ), which in a second transport direction, in particular from bottom to top, can be flowed through, characterized in that the first pipe region ( I ) a section ( 210a . 212a . 210b . 212b ) and the second pipe region ( II ) a section ( 214a . 214b . 300 . 500 ) mounted on the support ( 202 ) are nested. Refrigeration appliance ( 100 ) according to claim 1, characterized in that the first pipe region ( I ) two sections ( 210a . 210b . 212a . 212b ), wherein the second pipe region ( II ) a section ( 214a . 214b ) adjacent to the two sections ( 210a . 210b . 212a . 212b ) of the first pipe region ( I ) is arranged. Refrigeration appliance ( 100 ) according to claim 2, characterized in that the section ( 214a . 214b ) of the second pipe section ( II ) leading to the two sections ( 210a . 212a . 210b . 212b ,) of the first pipe region ( I ) is arranged adjacent, can be flowed through in the second transport direction. Refrigeration appliance ( 100 ) according to claim 2, characterized in that the section ( 214a . 214b ) of the second pipe section ( II ) leading to the two sections ( 210a . 212a . 210b . 212b ) of the first pipe region ( I ) is arranged adjacent, in the second transport direction can be flowed through. Refrigeration appliance ( 100 ) according to one of the preceding claims, characterized in that the carrier ( 202 ) is plate-shaped. Refrigeration appliance ( 100 ) according to one of the preceding claims, characterized in that the first pipe region ( I ) is substantially flowed through in the direction of gravity. Refrigeration appliance ( 100 ) according to one of the preceding claims, characterized in that the tube ( 204 ) on the support ( 202 ) a third pipe section ( III ), which can be flowed through substantially in a transport direction which extends from the transport direction in the first tube region (FIG. I ) and the transport direction in the second tube region ( II ) is different. Refrigeration appliance ( 100 ) according to claim 7, characterized in that the transport direction in the first tube region ( I ) and / or the transport direction in the second tube region ( II ) within manufacturing tolerances at a right angle to the transport direction in the third pipe region ( III ). Refrigeration appliance ( 100 ) according to one of the preceding claims, characterized in that one of the sections ( 210a . 210b . 212a . 212b . 214a . 214b . 300 . 500 ) 2 to 10 Meander ( 218 ), in particular 3 to 5 meanders ( 218 ), having. Refrigeration appliance ( 100 ) according to one of the preceding claims, characterized in that within manufacturing tolerances one of the sections ( 210a . 210b . 212a . 212b . 214a . 214b . 300 . 500 ) one half, in particular one third, in particular one Quarter, in particular one-eighth of the support surface of the support ( 202 ) covered. Refrigeration appliance ( 100 ) according to one of the preceding claims, characterized in that at least two meanders ( 236 ) one of the sections ( 210a . 210b . 212a . 212b . 214a . 214b . 300 . 500 ) are arranged above a coolant level which is due to idle times of the evaporator ( 200 ) accumulated refrigerant is formed. Refrigeration appliance ( 100 ) according to one of the preceding claims, characterized in that at least two meanders ( 236 ) one of the sections ( 210a . 210b . 212a . 212b . 214a . 214b . 300 . 500 ) in front of an outlet ( 206 ) of the evaporator ( 200 ) are arranged, which are arranged above a coolant level, which by itself in downtime of the evaporator ( 200 ) accumulated refrigerant is formed. Refrigeration appliance ( 100 ) according to one of the preceding claims, characterized in that a connecting section ( 224 . 228 ) Sections ( 210a . 210b ) of the first pipe region ( I ) connects refrigerant leading. Refrigeration appliance ( 100 ) according to one of the preceding claims, characterized in that a connecting section ( 230 . 234 ) Sections ( 212a . 212b ) of the second pipe section ( II ) connects refrigerant leading. Refrigeration appliance ( 100 ) according to one of the preceding claims, characterized in that the evaporator ( 200 ) is designed as a ToS evaporator.

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