CN105705886B - Refrigerating appliance with evaporator - Google Patents

Abstract

The present invention relates to a refrigeration appliance with an evaporator (200), wherein the evaporator (200) has a carrier (202) and a tube ( 204), wherein the tube (204) on the carrier (202) has a first tube area (I) and a second tube area (II), and the first tube area is in the cooling appliance (100) In the operating position, flow can be made essentially in the first conveying direction, in particular from top to bottom, and the second pipe region can flow essentially in the second conveying direction, in particular from bottom to top. According to the invention, the first pipe area (I) has sections (210a, 212a, 210b, 212b) and the second pipe area (II) has sections (214a, 214b) which are in The bearings (202) are staggered.

Description

Refrigeration appliances with evaporator

technical field

The invention relates to a refrigeration appliance with an evaporator, wherein the evaporator has a carrier part and tubes arranged on the carrier part for conducting refrigerant, wherein the tubes on the carrier part have a first tube region and a second pipe region, which in the operating position of the refrigerating appliance can flow through substantially in the first conveying direction, in particular from top to bottom, which can flow substantially in the second conveying direction direction, especially from bottom to top.

Background technique

Patent document US 2,386,889 shows an evaporator.

Publication WO 2012/136569 A1 shows a domestic refrigeration appliance with evaporator plates connected by webs.

Patent document US 2,509,779 shows a refrigeration element for refrigeration appliances.

Refrigeration appliances, in particular refrigeration appliances designed as household appliances, are known and are used in domestic work or in the catering industry to store perishable food and/or beverages at a defined temperature.

Refrigerators of this type have so-called tube-sheet evaporators, which have a carrier on which tubes through which the refrigerant flows are arranged. The tube has a meander-shaped course on the carrier. In this case, the course of the tubes is guided in such a way that the tubes of the evaporator have meander-shaped sections aligned with one another from the top up to the center of the carrier, wherein the course of the tubes is continued directly from the center of the carrier without a meander to the lower edge of the carrier. From there, the tube continues in a meander from bottom to top, more precisely up to the middle. Such a tube alignment results in a larger used evaporation area, which is available at the start of cooling. After the upper half of the tubes has flowed through the refrigerant, it therefore rushes directly to the still very hot lower edge of the evaporator. The improved area utilization of such an evaporator at the beginning of the cooling phase leads to a higher evaporating temperature in the initial phase and thus to a higher efficiency of the refrigeration appliance. However, such an arrangement of the tubes on the carrier leads to uneven cooling of the carrier.

Contents of the invention

It is therefore the object of the present invention to provide a refrigeration appliance with an evaporator that can be cooled uniformly.

This task is solved by the subject-matter having the features stated in the independent claims. Advantageous refinements are the subject matter of the subclaims, the description and the figures.

The invention is based on the insight that the penetrating guidance of the tubes enables a more uniform cooling of the carrier. This can be achieved, for example, with a refrigeration appliance having an evaporator in which a section of the first tube area and a section of the second tube area alternate on the carrier. The interleaving of the sections of the tube region is understood here to mean that the sections of the first and the second tube region together form an intersecting section with at least two tube regions, the at least two The tube regions have different conveying directions of the refrigerant in the tubes due to the guidance of the tube regions. This achieves the technical advantage that due to the interleaving, a uniform cooling of the carrier is brought about. This further increases the energy efficiency of the refrigeration appliance, since the existing evaporator surface is better utilized. In this case, a tube is understood to be a component which is formed as an elongated hollow body which has a length which is greater than the diameter of the tube. This tube is made of a non-flexible material, that is to say it does not deform during operation. Such tubes can be made of metal or plastic. In this case, such a pipe can be formed seamlessly or with connecting seams, for example welded seams.

Refrigeration appliances are understood in particular to be domestic refrigeration appliances, ie refrigeration appliances for domestic use in domestic or catering trades and especially for storing food and/or beverages at a defined temperature, e.g. refrigerators, freezers, refrigerators/freezers Combine appliances, freezers or wine refrigerators.

According to a first aspect, the present invention relates to a refrigeration appliance with an evaporator, wherein the evaporator has a carrier and tubes arranged on the carrier for guiding refrigerant, wherein the tubes on the carrier In the operating position of the refrigeration appliance, there is a first tube region through which flow can be made in a first conveying direction, and a second pipe region which can be conveyed in a second conveying direction flow through. The first tube area has a section and the second tube area has a section, wherein the sections are staggered on the carrier.

In the operating position of the refrigeration appliance, the first conveying direction can extend from top to bottom, ie in the direction of gravity. In the operating position of the refrigeration appliance, the second conveying direction can run from bottom to top, ie in a direction opposite to the direction of gravity. This achieves that the refrigerant is guided downwards from an injection point arranged in the first tube region and upwards from a refrigerant accumulation point (ie further below) in the second tube region.

In an advantageous embodiment it is provided that the first pipe region has two sections, wherein the second pipe region has a section which is arranged adjacent to the two sections of the first pipe region. This achieves the technical advantage that the tube can be guided on the carrier particularly simply and without particularly long connecting sections between the first and second sections. In this way, the tube length can be shortened and thus save material.

In another advantageous embodiment, it is provided that the sections of the second pipe region which are arranged adjacent to the two sections of the first pipe region can be passed through in the first conveying direction. This achieves the technical advantage that firstly the outer section of the carrier and finally the middle section of the carrier adjacent to the other two sections of the carrier are cooled from above. From above, a particularly intensive cooling initially in the first and second sections and then a particularly intensive cooling in the middle section can be achieved.

In a further advantageous embodiment, it is provided that the section of the second pipe region which is arranged adjacent to the two sections of the first pipe region can be passed through in the second conveying direction from top to bottom. This achieves the technical advantage that firstly the outer section of the carrier and finally the middle section of the carrier adjacent to the other two sections of the carrier is cooled from below upwards. As a result, a particularly intensive cooling initially in the first and second sections, followed by a particularly intensive cooling in the middle section, can be achieved from below.

In another advantageous embodiment, it is provided that the carrier is formed in the shape of a plate. This results in the technical advantage that the carrier has a particularly large area on which the tubes are arranged. This provides a particularly efficient evaporator.

In another advantageous embodiment, it is provided that the first pipe region can flow through substantially in the direction of gravity. As a result, the technical advantage is achieved that the refrigerant does not have to be conveyed in this tube region by means of a conveying device, for example a pump. This simplifies the structure.

In a further advantageous embodiment it is provided that the tubes on the carrier have a third tube area which can be substantially aligned in a conveying direction with the first tube area and the second tube area The conveying direction is different from the conveying direction being flow through. As a result, the technical advantage is achieved that the carrier is cooled more uniformly.

In another advantageous embodiment, it is provided that the conveying direction in the first tube region and/or the conveying direction in the second tube region runs at right angles to the conveying direction in the third tube region within manufacturing tolerances. Manufacturing tolerances are understood here to mean the usual tolerances occurring in manufacturing, for example tolerances of 3%, 5% or 10%. As a result, the technical advantage is achieved that the tube can be arranged on the carrier in a particularly simple manner. This simplifies manufacturing.

In another advantageous embodiment, one of the sections has 2 to 10 meanders, in particular 3 to 5 meanders. As a result, the technical advantage is achieved that one of the sections is assigned to one of the cooling surfaces of the refrigeration appliance, so that, for example, a refrigeration shelf formed as a freezer shelf is assigned with 2 to 5, for example 3, loops. In the first section of the curve, the shelf is first cooled when the evaporator starts to operate.

In an advantageous embodiment, within manufacturing tolerances, one of the sections covers half, in particular one third, in particular one quarter, in particular one eighth of the load bearing surface of the carrier. Manufacturing tolerances are understood here to mean the usual tolerances that occur during manufacturing, for example tolerances of 3%, 5% or 10%. This results in the technical advantage that on the one hand one of the segments can be assigned to one of the cooling surfaces of the refrigeration appliance, but also a plurality of segments can be assigned to a single cooling shelf, thus ensuring Uniform cooling of multiple cooling surfaces of refrigeration appliances.

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

In a further advantageous embodiment, at least two meanders of a section are arranged upstream of the evaporator outlet, said at least two meanders being arranged above the coolant level, which is caused by the evaporator Refrigerant build-up during machine downtime. As a result, the technical advantage is achieved that the refrigerant that foams during the start-up of the compressor of the refrigerating appliance and that bursts towards the compressor is still there before the refrigerant enters the suction line and is therefore no longer available for heat exchange. undergoes a certain heat exchange in the evaporator. This reduces cooling losses.

In a further advantageous embodiment, the connecting section of the tube is connected to the section of the first tube region in a refrigerant-conducting manner. As a result, the technical advantage is achieved that no additional components are required for connecting the segments for conducting the refrigerant. This simplifies manufacturing.

In another advantageous embodiment, the connecting section of the tube is connected to the section of the second tube region in a refrigerant-conducting manner. As a result, the technical advantage is achieved that no additional components are required for connecting the segments for conducting the refrigerant. This simplifies manufacturing.

In a further advantageous embodiment, the carrier part has a first direction of extent and a second direction of extent, wherein the length in the first direction of extent is greater than the width in the second direction of extent, and the bends in these sections One has a straight tube section whose longitudinal direction lies within manufacturing tolerances in the direction of extension of the carrier. Manufacturing tolerances are understood here to mean the usual tolerances that occur during manufacturing, for example tolerances of 3%, 5% or 10%. This achieves the technical advantage that the tube can be arranged in a space-saving manner on the carrier, wherein the carrier is, for example, rectangularly configured with longitudinal and lateral sides, wherein the curved tube section is located on the carrier extending in the width direction. This achieves the technical advantage that different evaporator heights of the evaporator can be realized with only one tool carrier, which reduces the investment costs for production.

In another advantageous embodiment, the evaporator is designed as a ToS evaporator. This results in the technical advantage that the evaporator has a particularly simple construction and can therefore be produced with little effort.

Description of drawings

Other embodiments will be described with reference to the drawings. In the attached picture:

Fig. 1 is a front view of a refrigeration appliance;

Fig. 2 is the schematic diagram of evaporator;

Fig. 3 is another schematic diagram of the evaporator;

Fig. 4 is another schematic diagram of the evaporator;

Figure 5 is another schematic diagram of an evaporator; and

Figure 6 is another schematic diagram of the evaporator.

detailed description

FIG. 1 shows a refrigerator according to one embodiment for a refrigeration appliance 100 having an upper refrigerator door 102 and a lower refrigerator door 104 on its refrigeration appliance front side. The refrigerator is used, for example, to cool food and includes a refrigerant cycle with an evaporator (not shown in FIG. 1 ), a compressor (not shown), a condenser (not shown) and a throttle mechanism (not shown).

The evaporator is designed as a heat exchanger in that after expansion the liquid refrigerant evaporates inside the refrigerator by absorbing heat from the medium to be cooled, for example air.

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

The condenser is configured as a heat exchanger in which, after compression, the evaporated refrigerant is liquefied by releasing heat to the external cooling medium, namely the surrounding air.

The throttle is a device for continuously reducing the pressure by reducing the cross section.

The refrigerant is a fluid that is used for heat transfer in refrigerated systems and that absorbs heat at low temperature and low pressure of the fluid and absorbs heat at high temperature and high pressure of the fluid The evolution of heat, which usually involves a change of state of the fluid.

An upper refrigeration compartment 106 can be opened via the upper refrigeration appliance door 102 , which is designed as a freezer compartment according to one exemplary embodiment. A lower refrigeration compartment 108 can be opened via the lower refrigeration appliance door 104 , which is designed as a cold compartment according to one exemplary embodiment.

FIG. 2 shows an evaporator 200 .

According to one embodiment, the evaporator 200 constitutes a tube-sheet evaporator. The tube-sheet evaporator is also called a ToS evaporator. The evaporator 200 has a plate-shaped carrier 202 which, according to one embodiment, has a first direction of extension E1 and a second direction of extension E2 . According to one embodiment, the first extension direction E1 extends in the height direction Z of the refrigeration appliance when the evaporator 200 is installed in the refrigeration appliance 100 , and the second extension direction E2 is in the case of the evaporator 200 installed in the refrigeration appliance 100 The bottom extends in the width direction Y of the refrigeration appliance.

According to an implementation form, the carrier 202 has a length along the first extending direction E1, said length being greater than a width of the carrier 202 along the second extending direction E2. According to one embodiment, the carrier 202 is therefore of rectangular design.

Arranged on the carrier 202 is a tube 204 with an inlet 202 and an outlet 208 , through which the refrigerant flows in the flow direction D. FIG. The tube 204 runs on the carrier 202 with a plurality of bends 218 .

The meander 218 includes a straight tube section 222 connected to a curved section 240 . According to one embodiment, the straight tube section 238 extends with its longitudinal direction L along the second direction of extension E2 within manufacturing tolerances. Therefore, the straight pipe section 238 extends in the width direction Y of the refrigeration appliance.

According to one exemplary embodiment, the tube 204 on the carrier part 202 has a first tube region I which, in the operating position of the refrigeration appliance 100 , flows through substantially from the top down. In addition, the tube 204 on the carrier 202 has a second tube region II, which flows through substantially from the bottom up. The first pipe area I is flowed by refrigerant in a first conveying direction, and the second pipe area II is passed by refrigerant in a second conveying direction, wherein the first conveying direction is opposite to the second conveying direction .

The tube 204 is arranged on the carrier 202 to extend in a meandering manner such that a plurality of sections 210a, 210b, 212a, 212b, 214a, 214b are formed, which loop on the carrier 202 as described. extending curvedly in the first conveying direction and in the second conveying direction. Here, according to one embodiment, the segments 210a, 210b, 212a, 212b extend in the first conveying direction, while the segments 214a, 214b extend in the second conveying direction.

Here, according to one embodiment, adjacent segments 210 a , 212 a , 214 a are interleaved with each other and form a first interspersed segment 236 . In addition, adjacent segments 210 b , 212 b , 214 b are interleaved with each other and form a second interspersed segment 238 .

According to one exemplary embodiment, the tube 204 on the carrier 202 is arranged in a meandering manner in the first section 210 a of the first tube region I and extends in the first conveying direction. In this case, according to one embodiment, the first conveying direction extends along an axis extending in the height direction Z of the refrigerating appliance, that is, within manufacturing tolerances, from top to bottom.

The section 210a adjoins the connecting section 224 of the pipe 204 which, according to one embodiment, extends in the height direction Z of the refrigeration appliance.

The connecting section 224 adjoins the second section 212 a of the first tube region I, in which the tube 204 is arranged to extend in a meander-like manner in the first conveying direction.

Section 212 a adjoins a further connecting section 226 of pipe 204 which, according to one embodiment, extends in the height direction Z of the refrigeration appliance.

The connecting section 226 is adjoined by a third section 210 b of the first tube region I, in which the tube 204 is arranged to extend meander-like in the first conveying direction.

Section 210 b adjoins a further connecting section 228 of pipe 204 which, according to one embodiment, extends in the height direction Z of the refrigeration appliance.

The connecting section 228 is adjoined by a fourth section 212b of the first tube region I, in which the tube 204 is arranged to extend meander-like in this first conveying direction.

Section 212b is adjoined by a further connecting section 230 of pipe 204 which, according to one embodiment, extends in the height direction Z of the refrigeration appliance.

The connecting section 230 adjoins the first section 214a of the second tube region II, in which the tube 204 is arranged to run meander-like in the second conveying direction. In this case, according to one embodiment, the second conveying direction extends in the height direction Z of the refrigerating appliance, more precisely from the bottom to the top within manufacturing tolerances.

A further connecting section 232 of the pipe 204 adjoins the second section 214 a , said further connecting section extending in the height direction Z of the refrigeration appliance according to one embodiment.

A further section 216 of the second tube region II adjoins the connecting section 232 in which the tube 204 is arranged to extend meander-like in this second conveying direction.

A further connecting section 234 of the pipe 204 adjoins a further section 216 which, according to one embodiment, extends in the height direction Z of the refrigeration appliance.

The connecting section 234 adjoins the second section 214 b of the second tube region II, in which the tube 204 is arranged to extend meander-like in the second conveying direction.

The tube 204 then leads from the second section 214b to the outlet 208 .

Furthermore, according to one embodiment, the connection sections 224 - 234 extend in the height direction Z of the refrigeration appliance.

Therefore, according to one embodiment, the first intersecting section 236 comprises a section 210a, a section 212a and a section 214a, wherein the section 214a is arranged between the section 210a and the section 214a in the flow direction D of the refrigerant flow through the pipe 204 between sections 212a. Accordingly, section 214a is disposed adjacent to section 210a and section 212a.

According to one embodiment, the second intersecting section 238 comprises a section 210b, a section 212b, a section 214b and a further section 216, wherein the section 214b is arranged in the flow direction D of the refrigerant flow through the tubes 204 Between section 210b and section 212b. Accordingly, segment 214b is disposed adjacent to segment 210b and segment 212b.

The interspersed sections 236 , 238 bring about a uniform cooling of the carrier 202 and thus increase the energy efficiency of the refrigeration appliance 100 .

According to one embodiment, the sections 210 a , 210 b , 212 a , 212 b , 214 a , 214 b have 1 to 10, for example 1 to 5, curvatures in order to bring about a uniform cooling over the section of the carrier 202 . According to one embodiment, the sections 210 a , 210 b , 212 a , 212 b , 214 a , 214 b cover differently sized surface sections of the bearing surface of the carrier part 202 . Thus, second section 212b covers 1/4 of the load-bearing surface of carrier 202, sections 210a; 212a and 214a cover 1/3, and sections 210b, 214b, and 216 cover 1/8 of the load-bearing surface of the carrier. In this way, the individual sections 210 a , 210 b , 212 a , 212 b , 214 a , 214 b can be adapted to the corresponding size of the associated cooling surface 106 , 108 .

Furthermore, FIG. 2 shows that the two bends 218 are arranged above the level of the coolant, which consists of the refrigerant which accumulates during the idle period of the evaporator 200 . The refrigerant accumulated there must pass through the sections 214b, 216 and 214a before it reaches the outlet 208 where it exchanges heat.

FIG. 2 also shows that, according to one embodiment, two bends 218 are arranged upstream of the outlet 208 . This ensures that the foaming refrigerant that breaks up towards the compressor when the compressor is started still undergoes a certain heat exchange in the evaporator 200 before the refrigerant reaches the outlet 208 .

FIG. 3 shows an evaporator 200 in which a tube 204 between an inlet 206 and an outlet 208 is arranged meander-shaped in a section 210a of a first tube region I on a carrier 202 in a first extending in the conveying direction. In this case, according to one embodiment, the first conveying direction extends along an axis extending in the height direction Z of the refrigerating appliance, more precisely, within a tolerance, from top to bottom.

The connecting section 224 of the tube 204 engages on the first section 210a, said connecting section forming the connection leading the refrigerant to the section 214a of the second tube region II, in which section the tube 204 is arranged in a meander Shapely extending in the second conveying direction. According to one embodiment, the connection section 224 extends in the height direction Z of the refrigerating appliance, that is, within manufacturing tolerances, from top to bottom.

According to one embodiment, a further section 300 of the third tube area III directly adjoins the second section 214a, in which the tube 204 on the carrier 202 is arranged in a meandering manner at the second The three conveying directions extend upwards. According to one embodiment, the third conveying direction extends along an axis extending in the width direction Y of the refrigeration appliance, more precisely from right to left within manufacturing tolerances.

The first conveying direction and the second conveying direction extend along an axis extending in the height direction Z of the refrigeration appliance, wherein the first conveying direction and the second conveying direction are oriented opposite to each other, and the third conveying direction is in the refrigeration appliance Extends in the width direction Y. Thus, the first conveying direction and the second conveying direction and the third conveying direction extend in different directions. FIG. 3 shows that the third conveying direction runs at right angles to the first direction of extension E1 and the second direction of extension E2 .

According to one embodiment, the intersecting section 236 comprises a section 210a, a section 214a and a section 300, wherein the section 300 is arranged between the section 210a and the section 214a in the flow direction D of the refrigerant flowing through the pipe 204 between. Accordingly, segment 300 is disposed adjacent to segment 210a and segment 214a.

Interspersed sections 236 can be used not only to cool the upper shelf 106, but also to cool the lower shelf 108, wherein, for example, one of the sections 210a or 212a is assigned to the freezer shelf, while the other section is assigned to the cold shelf 212a and 300, or 210a and 300.

FIG. 4 shows an evaporator 200 with a first penetrating section 236 and a second penetrating section 238 .

In the first section 210a of the first tube region I, the tubes 204 arranged on the carrier 202 run meandering in the first conveying direction, wherein the connecting section 224 of the tubes 204 forms a channel for guiding the refrigerant. Connection to the section 212 a of the first tube region I in which the tube 204 is arranged on the carrier 202 to run meandering in the first conveying direction.

The connection section 228 of the pipe 204 forms a connection leading to the refrigerant to the section 212b, wherein according to one embodiment the connection section 228 extends in the height direction Z of the refrigeration appliance.

In section 212b of first tube region I, tube 204 arranged on carrier 202 extends meander-like in the first conveying direction.

A connecting section 230 of the pipe 204 adjoins the section 212b, wherein according to one embodiment, the connecting section 230 extends in the height direction Z of the refrigeration appliance.

A section 214 a of the second tube region II adjoins the connecting section 230 , in which section the tube 204 on the carrier 202 is arranged to run meandering in this second conveying direction.

The connecting section 232 of the pipe 204 adjoins the section 214a, wherein according to one embodiment the connecting section 232 extends in the height direction Z of the refrigeration appliance. In addition, two meanders 218 form the second section 214b of the second tube region II.

The connecting section 232 is adjoined by a third section 300 of the third tube region III, in which the tube 204 runs meander-shaped in the third conveying direction.

The third section 300 is connected to the outlet 208 in a refrigerant-conducting manner.

According to one embodiment, the intersecting section 236 comprises a section 210a, a section 212a and a section 300, wherein the section 300 is arranged between the section 210a and the section 212a in the flow direction D of the refrigerant flowing through the pipe 204 between. Accordingly, segment 300 is disposed adjacent to segment 210a and segment 212a.

The second intersecting section 238 comprises a section 210b, a section 212b and a section 214b, wherein the section 214b is arranged between the section 210b and the section 212b in the flow direction D of the refrigerant flowing through the pipe 204 . Accordingly, segment 214b is disposed adjacent to segment 210b and segment 212b.

FIG. 4 shows that in the first intersecting section 236 all three conveying directions are different. According to one embodiment, the three conveying directions are arranged orthogonally to each other within manufacturing tolerances.

The first interspersed section 236 may be assigned to the upper refrigeration compartment 106 and the second interspersed section 238 may be assigned to the lower refrigeration compartment 108 .

FIG. 5 shows an evaporator 200 in which the tube 204 between the inlet 206 and the outlet 208 meanders in a section 210 a of the first tube region I on the carrier 202 in the first delivery extend in the direction.

The connecting section 224 of the pipe 204 engages on the first section 210a, said connecting section forming the connection leading the refrigerant to the first section 300 of the second pipe region II, in which the pipe 210a is arranged It extends meander-shaped in the second conveying direction. According to one embodiment, the connection section 224 extends in the height direction Z of the refrigeration appliance.

The connecting section 230 adjoins the section 300 , wherein according to one embodiment, the connecting section 230 extends in a first section in the flow direction D in the height direction Z of the refrigeration appliance, and in the flow direction D in the The second section extends in the width direction Y of the refrigeration appliance.

The connecting section 230 is adjoined by a second section 500 of the second tube region II, in which the tube 204 is arranged on the carrier 202 to run meandering in the second conveying direction.

According to one embodiment, the second conveying direction extends in the width direction Y of the refrigeration appliance, more precisely from right to left within manufacturing tolerances. Conversely, according to one embodiment, the first conveying direction I extends in the height direction Z of the refrigerating appliance, more precisely from the top to the bottom within manufacturing tolerances. Thus, the first transport direction differs from the second transport direction. According to one embodiment, the first conveying direction and the second conveying direction are arranged orthogonally to each other within manufacturing tolerances.

The segments 210 a , 300 and 500 form an intersecting segment 236 , wherein the segment 500 is arranged between the segment 210 a and the segment 300 in the flow direction D of the refrigerant flow through the tubes 204 . Accordingly, this section 500 is disposed adjacent to section 210 a and section 300 .

The interspersed sections 236 can be used not only to cool the cooling racks, but also to cool the freezing racks, wherein, for example, one of the segments 210a or 300 is assigned to the freezing racks, while the other segments 300 and 500 are assigned to the cold racks, or Sections 210a and 500.

FIG. 6 shows an evaporator 200 in which the tube 204 between the inlet 206 and the outlet 208 is arranged in a meandering manner on the carrier 202 in the first section 210 a of the first tube region I. extends in this first conveying direction.

The connecting section 224 of the pipe 204 adjoins the section 210a, said connecting section forming the connection leading to the section 214a of the second pipe region II, in which the pipe 204 is arranged in a meandering manner. It extends in this second conveying direction. According to one embodiment, the connection section 224 extends in the height direction Z of the refrigeration appliance.

A connecting section 230 of the pipe 204 adjoins the section 214 a , wherein according to one embodiment, the connecting section 230 extends in the flow direction D in the height direction Z of the refrigeration appliance. According to one embodiment, the connecting section 224 and the connecting section 230 run partially parallel to one another.

The connecting section 224 adjoins the second section 212 a of the first tube region I, in which the tube is arranged on the carrier 202 to run meander-like in this first conveying direction.

Sections 210 a , 212 a and 214 a form an intersecting section 236 , wherein section 212 a is arranged between section 210 a and section 214 a in flow direction D of refrigerant flow through pipe 204 . Accordingly, segment 212a is disposed adjacent to segment 210a and segment 214a.

The interspersed sections 236 can be used not only to cool the cold racks but also to cool the freezer racks, wherein for example one of the segments 210a or 212a is assigned to the freezer racks and the other segments 212a and 214a are assigned to the cold racks, or Sections 210a and 214a.

List of reference signs

100 refrigeration appliances

102 Upper refrigeration appliance door

104 Lower refrigeration appliance door

106 upper cooling compartment

108 lower cooling compartment

200 evaporator

202 carrier

204 tube

206 Entrance

208 Exit

Section 210a

210b section

Section 212a

212b block

Section 214a

214b block

Section 216

218 Return

220 straight section

222 curved section

224 link segment

226 link segment

228 link segment

230 link section

232 link segment

234 link segment

236 first interspersed segment

238 Second interspersed segment

300 segments

500 segments

I first tube area

II Second tube area

II′ second tube area

II″ Second tube area

III Third tube area

III' third tube area

III″ Third tube area

D flow direction

E1 First direction of extension

E2 Second direction of extension

L portrait

X Depth direction of refrigeration appliance

Y Width direction of refrigeration appliance

Z is the height direction of the refrigeration appliance

Claims (19)

1. the refrigerating appliance (100) with evaporator (200), wherein, the evaporator (200) has bearing part (202) and set Put and be used for the pipe (204) for guiding refrigerant on the bearing part (202), wherein, the pipe (204) on the bearing part (202) With the first area under control domain (I) and the second area under control domain (II), first area under control domain is in the running position of the refrigerating appliance (100) In can be through-flow on the first conveying direction, second area under control domain can be through-flow on the second conveying direction, its feature It is, first area under control domain (I) has section (210a, 212a, 210b, 212b), and second area under control domain (II) has Section (214a, 214b, 300,500), the section in first area under control domain (I) is with the section in second area under control domain (II) in institute State on bearing part (202) staggeredly, wherein, bearing part (202) the plate shape ground construction.

2. refrigerating appliance (100) according to claim 1, it is characterised in that first area under control domain (I) has two sections (210a, 210b, 212a, 212b), wherein, second area under control domain (II) has one and is arranged to and first area under control domain (I) the adjacent section (214a, 214b) of described two sections (210a, 210b, 212a, 212b).

3. refrigerating appliance (100) according to claim 2, it is characterised in that second area under control domain (II), be arranged to and institute The adjacent section (214a, 214b) of two sections (210a, 212a, 210b, 212b) for stating the first area under control domain (I) can be described It is through-flow on second conveying direction.

4. according to the refrigerating appliance (100) of any one of the claims, it is characterised in that first area under control domain (I) energy It is enough through-flow substantially on gravity direction.

5. refrigerating appliance (100) as claimed in one of claims 1-3, it is characterised in that the pipe on the bearing part (202) (204) there is the 3rd area under control domain (III), the 3rd area under control domain can be substantially in one and first area under control domain (I) The conveying direction conveying direction different with the conveying direction in second area under control domain (II) on it is through-flow.

6. refrigerating appliance (100) according to claim 5, it is characterised in that the conveying direction in first area under control domain (I) And/or the conveying direction in second area under control domain (II) in manufacturing tolerance with the conveying in the 3rd area under control domain (III) Direction extends at a right angle.

7. according to claim 1-3, any one of 6 refrigerating appliance (100), section (210a, 210b, 212a, 212b, 214a, 214b, 300,500) one in has 2 to 10 Hui Qu (218).

8. according to claim 1-3, any one of 6 refrigerating appliance (100), it is characterised in that in manufacturing tolerance, section The loading end of a covering bearing part (202) in (210a, 210b, 212a, 212b, 214a, 214b, 300,500) Half.

9. according to claim 1-3, any one of 6 refrigerating appliance (100), it is characterised in that section (210a, 210b, 212a, 212b, 214a, 214b, 300,500) at least two times songs (236) of one in be arranged on a cooling agent liquid level it On, the refrigerant that the cooling agent liquid level is gathered by the evaporator (200) downtime is formed.

10. according to claim 1-3, any one of 6 refrigerating appliance (100), it is characterised in that section (210a, 210b, 212a, 212b, 214a, 214b, 300,500) at least two times songs (236) of one in are arranged on the evaporator (200) Outlet (206) before, at least two times songs are arranged on a cooling agent liquid level, and the cooling agent liquid level is by described The refrigerant of evaporator (200) downtime accumulation is formed.

11. according to claim 1-3, any one of 6 refrigerating appliance (100), it is characterised in that jointing (224,228) Connect the section (210a, 210b) in first area under control domain (I) guiding refrigerant.

12. according to claim 1-3, any one of 6 refrigerating appliance (100), it is characterised in that jointing (230,234) Connect the section (212a, 212b) in second area under control domain (II) guiding refrigerant.

13. according to claim 1-3, any one of 6 refrigerating appliance (100), it is characterised in that evaporator (200) structure As ToS- evaporators.

14. refrigerating appliance (100) according to claim 1, it is characterised in that first area under control domain is in the refrigerating appliance (100) can be through-flow from the top down in running position.

15. refrigerating appliance (100) according to claim 1, it is characterised in that second area under control domain can be led to from bottom to top Stream.

16. refrigerating appliance (100) according to claim 7, section (210a, 210b, 212a, 212b, 214a, 214b, 300, 500) one in has 3 to 5 Hui Qu (218).

17. refrigerating appliance (100) according to claim 8, it is characterised in that in manufacturing tolerance, section (210a, 210b, 212a, 212b, 214a, 214b, 300,500) 1/3rd of the loading end of a covering bearing part (202) in.

18. refrigerating appliance (100) according to claim 8, it is characterised in that in manufacturing tolerance, section (210a, 210b, 212a, 212b, 214a, 214b, 300,500) a quarter of the loading end of a covering bearing part (202) in.

19. refrigerating appliance (100) according to claim 8, it is characterised in that in manufacturing tolerance, section (210a, 210b, 212a, 212b, 214a, 214b, 300,500) 1/8th of the loading end of a covering bearing part (202) in.