Refrigeration unit

Abstract

Refrigerating appliance (100), in particular household refrigerating appliance, comprising: a storage compartment (1) for holding refrigerated goods; a separate machine room (2) from the storage compartment (1); a refrigerant circuit (3) thermally coupled to the storage compartment (1) for heat removal from the storage compartment (1) with a condenser (31) and a compressor (34) arranged in the engine room (2); an evaporation tray (4) arranged in the engine room (2) for collecting condensate; and a fan (32) for conveying air through the engine room (2); wherein the condenser (31) divides the engine room (2) in respect of a transverse direction (C) into a first partial volume (2A) and a second partial volume (2B), the evaporation tray (4) divides the second sub-volume (2B) with respect to a vertical direction (V) into a first sub-space in which the compressor (34) is positioned, and a second sub-space fluidically connected to the first sub-space, the fan (32) is designed and arranged to draw air into the engine room (2) via an intake opening (26) connected to the first partial volume (2B), to guide it through the condenser (31) into the first partial volume of the second partial volume (2B) and through the second partial volume of the second partial volume (2B), and to expel it from the engine room (2) via an exhaust opening (28) connected to the second partial volume of the second partial volume (2B). wherein the engine room (2) is bounded in the transverse direction (C) by a first engine room side wall (22) and an opposite second engine room side wall (23), and wherein a gap (29) is formed between the second engine room side wall (23) and the evaporation tray (4), which connects the first and the second sub-space of the second sub-volume (2B), characterized in that the fan (32) is positioned in the gap (29) between the second side wall (23) and the evaporation tray (4).

Description

TECHNICAL AREA

[0001] The present invention relates to a refrigeration appliance, in particular a household refrigeration appliance such as a refrigerator, a freezer or a fridge-freezer combination. STATE OF THE ART

[0002] In household refrigeration appliances, it is generally desirable for the storage compartment for refrigerated items, such as food, beverages, medication, or similar goods, to be as large as possible relative to the space the customer doesn't use for storage. Therefore, it is advantageous if the components of a refrigerant circuit can be housed in the most space-saving way possible. A refrigerant compressor and a condenser for condensing the refrigerant compressed by the compressor are thus often located in a separate machine room from the storage compartment. To make the condenser as compact as possible while simultaneously ensuring efficient heat dissipation, a fan is typically positioned in the machine room to direct an airflow over the condenser and thus improve heat dissipation.To improve the overall energy efficiency of the refrigeration unit, it is therefore desirable that the fan, on the one hand, promotes the highest possible volume flow, but on the other hand, has the lowest possible energy consumption.

[0003] The engine room typically also contains an evaporation tray in which condensate that forms in the storage compartment is collected. A certain amount of heat is required to evaporate the condensate that collects in the tray.

[0004] DE 10 2021 202 695 A1, DE 103 36 831 A1 and JP H09 318232 A2 disclose refrigeration equipment with a machine room. SUMMARY OF THE INVENTION

[0005] One of the objectives of the present invention is to provide improved solutions for heat management in the machine room of a refrigeration unit, in particular solutions that make space-saving use of the available space in the machine room and yet allow efficient heat dissipation.

[0006] This problem is solved according to the invention by a refrigeration device having the features of claim 1.

[0007] A refrigeration device according to the invention comprises a storage compartment for holding goods to be cooled, a separate machine room, a refrigerant circuit thermally coupled to the storage compartment for heat removal from the storage compartment, with a condenser and a compressor arranged in the machine room, an evaporation tray arranged in the machine room for collecting condensate, in particular from the storage compartment, and a fan for circulating air through the machine room. The condenser divides the machine room in a transverse direction into a first sub-volume and a second sub-volume. The evaporation tray, which is positioned in the second sub-volume, divides the second sub-volume in a vertical direction into a first sub-volume, in which the compressor is positioned, and a second sub-volume that is fluidly connected to the first sub-volume.The fan is designed and arranged to draw air into the engine room via an intake opening connected to the first partial volume, to guide it through the condenser into the first partial volume of the second partial volume and through the second partial volume of the second partial volume, and to expel it from the engine room via an exhaust opening connected to the second partial volume of the second partial volume.

[0008] One of the underlying ideas of the invention is to integrate the evaporation tray into the engine compartment in such a way that it guides the airflow generated by the fan within the engine compartment. The engine compartment is divided into a first and a second sub-volume with respect to a transverse direction through the condenser. For example, the condenser can be positioned perpendicular to the transverse direction within the engine compartment. The evaporation tray and the compressor are arranged in the second sub-volume such that the evaporation tray divides the second sub-volume with respect to a vertical direction perpendicular to the transverse direction into a first or lower sub-region or sub-space, in which the compressor is located, and a second or upper sub-region or sub-space. The upper and lower sub-regions are fluidically connected to each other, for example, in a region located away from the condenser with respect to the transverse direction.Thus, the airflow driven by the fan in the engine room flows through the condenser into the lower section of the second volume and is guided there along the transverse direction by the evaporation tray. From the lower section, the air passes through the connection between the lower and upper sections of the second volume into the upper section, where it flows along the evaporation tray and is expelled into the environment through a discharge opening.

[0009] The air carries heat away from the condenser and is thereby warmed. As the air flows through the first sub-compartment of the second sub-volume, where the compressor is located, it can carry additional heat away from the compressor and warm up further. Subsequently, the air, warmed by the condenser and compressor, enters the second sub-compartment of the second sub-volume of the engine room. There, the air contributes to an increase in the evaporation rate of the condensate in the evaporation tray. Consequently, the heat generated in the engine room is efficiently dissipated and utilized effectively. Since the evaporation tray itself contributes to guiding the airflow, the available space is used efficiently.

[0010] Advantageous designs and further developments result from the subclaims relating back to the independent claims in conjunction with the description.

[0011] According to some embodiments, the refrigeration appliance may be a household refrigeration appliance, in particular a refrigerator, a freezer or a chest freezer or a fridge-freezer combination.

[0012] The engine compartment is bounded in the transverse direction by a first engine compartment side wall and an opposing second engine compartment side wall. A gap is formed between the second engine compartment side wall and the evaporation tray, connecting the first and second sub-compartments of the second sub-volume. The fluidic connection is thus formed by a gap located between the engine compartment side wall and the evaporation tray. Since the gap is situated directly against the second engine compartment wall and therefore at the maximum distance from the condenser, the first sub-compartment of the second sub-volume is completely permeated by the airflow, which further improves heat dissipation, particularly from the compressor.

[0013] The fan is positioned in the gap between the second side wall and the evaporation tray. This allows for even more efficient use of the available space in the engine room.

[0014] According to some embodiments, the fan may have a fan housing with an inlet opening and an outlet opening, and an impeller housed within the fan housing. The impeller defines a suction side connected to the inlet opening and a pressure side connected to the outlet opening. The fan housing fills the gap between the second side wall and the evaporation tray. The inlet opening is connected to the first sub-compartment of the second sub-volume, and the outlet opening is connected to the second sub-compartment of the second sub-volume. Thus, the fan is arranged to draw air from the first, lower sub-compartment and expel it into the second, upper sub-compartment.

[0015] In some embodiments, the fan may be designed as a radial fan. A radial fan can be integrated into the gap between the second side wall and the evaporation tray in a space-saving manner, for example by positioning it so that its axis of rotation runs parallel to the transverse direction.

[0016] According to some embodiments, the machine compartment may be bounded vertically by a floor and a ceiling, wherein the first sub-compartment of the second sub-volume is bounded vertically by the floor and the evaporation tray, and wherein the second sub-compartment of the second sub-volume is bounded vertically by the evaporation tray and the ceiling, and wherein the evaporation tray has an opening facing the ceiling. In general, the evaporation tray defines an interior volume accessible through the opening. The opening thus exposes the water surface of the condensate located in the evaporation tray in the second sub-compartment, and the airflow can pass unimpeded over the water surface.

[0017] According to some embodiments, the engine compartment may be bounded in a depth direction by an inner wall and a rear engine compartment wall, with the evaporation tray extending along this depth direction from the inner wall to the rear engine compartment wall. The evaporation tray thus forms a kind of partition wall that extends completely between the inner wall and the rear engine compartment wall.

[0018] In some embodiments, a seal may be provided between the evaporation tray and the inner wall, and between the evaporation tray and the rear wall of the engine room. This advantageously reduces leakage airflow. Optionally, the evaporation tray may abut the inner wall and / or the rear wall of the engine room for sealing purposes, i.e., be in direct contact with the respective wall. Alternatively, a sealing element, e.g., made of a foam or elastomer material, may be arranged between the evaporation tray and the inner wall and / or between the evaporation tray and the rear wall of the engine room. It may also be provided that the evaporation tray abuts one wall and a sealing element is positioned on the other wall.

[0019] According to some embodiments, the intake opening may be formed in the rear wall of the engine compartment. For example, the intake opening may be formed in an end region of the rear wall of the engine compartment facing the first side wall of the engine compartment.

[0020] According to some embodiments, the discharge opening may be formed in the rear wall of the engine compartment or be limited by the rear wall of the engine compartment with respect to its depth. The discharge opening may, for example, be designed as an elongated opening extending in the transverse direction. Alternatively, the discharge opening may be formed entirely within the rear wall of the engine compartment. At an end facing away from the floor, the rear wall of the engine compartment may have a recess in the depth direction that limits the discharge opening on one side.

[0021] In some embodiments, the evaporation tray may be arranged in thermally conductive contact with the compressor. This further increases the heat input into the condensate collecting in the evaporation tray.

[0022] According to some embodiments, the evaporation tray may have a bottom and a circumferential wall projecting from the bottom, wherein the bottom of the evaporation tray divides the second partial volume of the engine room with respect to the vertical direction, and wherein the circumferential wall extends parallel to the vertical direction. The circumferential wall defines or delimits the opening facing the ceiling of the engine room. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The invention will now be explained with reference to the figures in the drawings. The figures show: Fig. 1 a simplified, schematic sectional view of a refrigeration unit according to an embodiment of the invention; Fig. 2 a schematic sectional view of a machine room of a refrigeration unit according to an embodiment of the invention; Fig. 3 a top view of an engine room rear wall of the in Fig. 2 refrigeration unit shown; and Fig. 4 another sectional view of the in Fig. 2 refrigeration units shown.

[0024] In the figures, the same reference symbols denote identical or functionally equivalent components, unless otherwise stated. DETAILED DESCRIPTION OF EXAMPLES OF EXECUTION

[0025] Fig. Figure 1 shows an example of a refrigeration appliance 100 in the form of a refrigerator. However, the invention is not limited to this. In general, the refrigeration appliance 100 can be a household refrigeration appliance, such as a refrigerator, a freezer, a chest freezer, or a fridge-freezer combination. As shown in Fig. Figure 1, also shown purely as an example, shows that the refrigeration unit 100 can be a built-in refrigeration unit designed for positioning in a built-in niche N.

[0026] As in Fig. As shown in Figure 1, the refrigeration unit 100 has a storage compartment 1, a machine room 2, and a refrigerant circuit 3. Furthermore, the refrigeration unit 100 has a fan 32 and an evaporation tray 4, as shown in Figure 1. Fig. 2 shown schematically.

[0027] Storage compartment 1 is used to hold refrigerated goods, such as food, beverages, medicines, or the like, and is bounded by a bottom wall 10, a ceiling wall 11 opposite it in a vertical direction V, side walls 12 opposite each other in a transverse direction C, which extend between the bottom wall 10 and the ceiling wall 11, and in a depth direction T by a rear wall 13. As in Fig. As shown schematically in Figure 1, the installation niche N can be defined by a rear wall W, side walls S, and a base B. In the exemplary positioning of the refrigeration unit 100 within the installation niche shown, the rear wall 13 of the refrigeration unit 100 can face the rear wall W of the installation niche N, leaving a gap G between the rear walls 13 and W.

[0028] Engine room 2 forms a separate space from storage compartment 1. As in Fig. As shown schematically in Figure 1, the engine room 2 can be divided in the vertical direction V by a floor 20 and a ceiling 21, and in the transverse direction C by opposing first and second engine room side walls 22, 23 ( Fig. 2 and Fig. 3), which extend between the floor 20 and the ceiling 21, and are bounded in the depth direction T by an interior wall 24 and a rear engine room wall 25. As in Fig. As shown in Figure 1, the floor wall 10 of storage compartment 1 can optionally form the inner wall 24 and the ceiling 21 of the machine room 2, thereby spatially separating the machine room 2 and the storage compartment 1.

[0029] The engine room 2 is connected by an intake opening 26 and an exhaust opening 28, which, as in Fig. 1 schematically represented, e.g. in the rear wall 25, which can be formed, connected to the environment.

[0030] As in Fig. As shown in detail in Figure 3, the discharge opening 28 can, for example, be configured as an elongated opening extending in the transverse direction C. For instance, the discharge opening can have a length in the transverse direction C that is at least 50 percent of the extent of the rear wall 25 in the transverse direction C. Optionally, the discharge opening 28 can be configured in the vertical direction V at an end region of the rear wall 25 facing the ceiling 21 of the engine room 2, as shown in Figure 3. Fig. 2 is also shown.

[0031] The intake opening 26 can, for example, be formed in the edge region of the rear wall 25 of the engine room 2 facing the first engine room side wall 22 with respect to the transverse direction C, as shown in Fig. Figure 2 is shown as an example. For instance, the intake opening 26 can be designed as a rectangular or substantially rectangular opening, which optionally extends over at least 50 percent of the vertical extent of the rear wall 25 in the direction V. As shown in Fig. As shown in Figure 3, the intake opening 26 and the exhaust opening 28 can be arranged at an angle to each other with respect to the transverse direction C. Alternatively or additionally, the intake opening 26 and the exhaust opening 28 can be arranged at an angle to each other with respect to the vertical direction V, as shown in Figure 3. Fig. 3 is also shown.

[0032] As in the Fig. 1 and Fig. 3. Furthermore, it is evident that a seal 5 can optionally be attached to an outer surface 25a of the rear wall 25 oriented away from the engine room 2. The seal 5 can be made of an elastic material, such as a foam material or a rubber material. As shown in the Fig. 1 and Fig. As shown in Figure 3, the seal 5 can be positioned between the intake opening 26 and the exhaust opening 28 with respect to the vertical direction V. When the refrigeration unit 100 is positioned in a recess N, the seal 5 rests against the rear wall W, as shown in Figure 3. Fig. 1 shown schematically. This achieves a seal between the exhaust opening 28 and the intake opening 26.

[0033] Refrigerant circuit 3 shows, as in Fig. Figure 1 shows a purely schematic diagram of a condenser 31, an evaporator 33, a compressor 34, and an expansion valve (not shown), e.g., in the form of a capillary. The evaporator 33 is thermally coupled to the storage compartment 1 and is designed to extract heat from it by evaporating refrigerant. An outlet of the evaporator 33 is connected to a suction port of the compressor 34, which is designed to compress the gaseous refrigerant. An inlet of the condenser 31 is connected to a pressure port of the compressor 34, whereby the refrigerant condenses in the condenser 31, releasing heat.

[0034] As will be explained in detail below, the fan 32, located in the engine compartment 2, draws ambient air into the engine compartment 2 through the intake opening 26, directs it over and through the condenser 32, and expels it into the environment through the exhaust opening 28. An outlet of the condenser 31 is connected to an inlet of the evaporator 33 via the throttle. The refrigerant circuit 3 is thus thermally coupled to the storage compartment 1 and designed to extract heat from the storage compartment 1 and transfer it to the environment.

[0035] The condenser 31 can, for example, be a compact condenser, particularly in the form of an MCHE condenser. "MCHE" is an abbreviation for the English term "Micro Channel Heat Exchanger." In this case, the condenser 31 can have a multitude of parallel plates, each containing multiple channels for the flow of refrigerant, and a multitude of fins arranged between the plates and in thermally conductive contact with them.

[0036] The plates and the lamellae together define convection channels through which air can flow into the condenser 31.

[0037] The condenser 31 is located in engine room 2, as shown in Fig. 1 shown purely schematically. As in particular in Fig. As shown in Figure 2, the condenser 31 is positioned in the engine room 2 such that it divides the engine room 2 into a first partial volume 2A and a second partial volume 2B with respect to the transverse direction C. The condenser 31 extends along the depth direction T between the inner wall 24 and the rear wall 25 of the engine room and, with respect to the vertical direction V, between the floor 20 and the ceiling 21 of the engine room 2. Optionally, a seal 31A can be provided on the outer circumference of the condenser 31, e.g., between the ceiling 21 and the condenser 31 and between the floor 20 and the condenser, with the seal 31A bearing against the condenser 31 and the ceiling 21 or the floor 20, respectively.

[0038] The intake opening 24 connects the first partial volume 2A, which is bounded by the first engine room side wall 22, the floor 20, the condenser 31 and the ceiling 21, as well as by the engine room rear wall 25 and the inner wall 24, to the environment. The exhaust opening 26 connects the second partial volume 2B, which is bounded by the second engine room side wall 22, the floor 20, the condenser 30 and the ceiling 21, as well as by the engine room rear wall 25 and the inner wall 24, to the environment.

[0039] As in Fig. As shown schematically in Figure 2, the evaporation tray 4 and the compressor 34 are arranged in the second sub-volume 2B of the machine room 2. Optionally, the fan 32 is also arranged in the second sub-volume 2B of the machine room 2.

[0040] The evaporation tray 4 is designed to collect condensation that forms in the storage compartment 1. Generally, the evaporation tray 4 defines a collection volume for the condensation. For example, the evaporation tray 4 can have a base 40 and a circumferential wall 41 projecting from the base 40, as shown in Fig. Figure 2 is shown schematically. The base 40 and the perimeter wall 41 together define the storage volume. The perimeter wall 41 encloses an opening 42 through which condensate can be supplied to the evaporation tray 4, e.g., via a pipe connected to the storage compartment 1 (not shown). As in Fig. Figure 2, shown schematically and only as an example, illustrates that the evaporation tray 4 can be arranged in thermally conductive contact with the compressor 34. For example, the evaporation tray 4 can have a collar 43 connected to the base 40, which is placed on the compressor 34 and into which the compressor 34 projects. Generally, the evaporation tray 4 is positioned in the engine room 2 such that the base 40 extends along the transverse direction C and along the depth direction T. The opening 42 faces the ceiling 21 of the engine room 2.

[0041] As in Fig. As shown schematically in Figure 2, the evaporation tray 4 is positioned in the engine compartment 2 such that it divides the second sub-volume 2B of the engine compartment 2 into a lower, first sub-compartment and an upper, second sub-compartment with respect to the vertical direction V. As shown in particular in Figure 2, the evaporation tray 4 is positioned in the engine compartment 2 such that it divides the second sub-volume 2B of the engine compartment 2 into a lower, first sub-compartment and an upper, second sub-compartment with respect to the vertical direction V. Fig. As shown in Figure 4, the evaporation tray 4 can extend along the depth direction T from the inner wall 24 to the rear wall 25 of the engine room. Furthermore, as shown in Fig. Figure 2 schematically shows that the circumferential wall 41 of the evaporation tray 4 has a wall section 41A in an area facing the condenser 31, which extends along the depth direction T from the inner wall 24 to the rear wall 25 of the engine room and reaches up to the ceiling 21, optionally abutting the ceiling 21. The lower sub-space of the second sub-volume 2B of the engine room 2 is thus bounded by the condenser 31, the second side wall 23 of the engine room, the rear wall 25 and the inner wall 24, as well as by the evaporation tray 4, in particular its bottom 40 and the wall section 41A. The upper part of the second part of the volume 2B of the engine room 2 is thus bounded by the second engine room side wall 23, the rear wall 25 and the inner wall 24 as well as by the evaporation tray 4, in particular its bottom 40 and the wall section 41A.The exhaust opening 28 connects the upper, second sub-space of the second sub-volume 2B with the environment.

[0042] The first (lower) and second (upper) sub-chambers of the second sub-volume 2B of the machine chamber 2 are fluidically connected to each other, e.g. via a gap 29, which is formed between the second machine chamber side wall 23 and the evaporation tray 4, as shown in Fig. 2 shown as examples.

[0043] As in Fig. As further shown in Figure 2, the compressor 34 is positioned in the lower sub-compartment. The fan 32, which can be designed, for example, as a radial fan, can be positioned, for example, in the gap 29 between the second side wall 23 and the evaporation tray 4. In this case, one suction side of the fan 32 is connected to the lower, first sub-compartment, and one pressure side of the fan 32 is connected to the upper, second sub-compartment. In principle, other positioning of the fan in the engine compartment 1 are also conceivable. Generally, the fan 32 is designed and arranged to draw air into the engine compartment 2 via the intake opening 26 connected to the first sub-compartment 2B, to guide it through the condenser 31 into the first sub-compartment of the second sub-compartment 2B and through the second sub-compartment of the second sub-compartment 2, and to expel it from the engine compartment 2 via the exhaust opening 28 connected to the second sub-compartment of the second sub-compartment 2B. As shown in Figure 2, the fan 32 is designed and arranged to draw air into the engine compartment 2 via the intake opening 26 connected to the first sub-compartment 2B, to guide it through the condenser 31 into the first sub-compartment of the second sub-compartment 2B and through the second sub-compartment of the second sub-compartment 2B. Fig. As symbolically represented by arrow P2, air flows through the condenser 31 essentially along the transverse direction C through the lower part of the second sub-volume 2B. The air is thus heated at the condenser 31 and the compressor 34 and passes through the gap 29 along the vertical direction V into the upper part of the second sub-volume 2. In the upper part of the second sub-volume 2, the heated air flows over the opening 42 of the evaporation tray 4 and thus contributes to increasing the evaporation rate on the surface of the condensate located in the evaporation tray 4. From the upper part of the second sub-volume 2, the air flows out into the environment through the outlet opening 28.

[0044] In the Fig. In the exemplary installation situation of the refrigeration unit 100 shown in Figure 1, the air flows upwards along the rear wall 13 in the vertical direction V2, as shown in Figure 1. Fig. 1 The arrows P2 are shown symbolically. The warm air advantageously prevents condensation from forming on the rear wall 13 of the refrigeration unit.

[0045] Again with reference to Fig. 2. The fan 32 can, for example, have a fan housing 32A with an inlet opening 32B and an outlet opening 32C, and an impeller 32D mounted in the fan housing 32A. The impeller 32D is rotatably mounted about a pivot axis and can be driven by a motor (not shown). The impeller 32D defines the pressure side and the suction side of the fan 32. The suction side is connected to or facing the inlet opening 32B. The pressure side is connected to or facing the outlet opening 32C. Fig. Figure 2 shows, purely as an example and only schematically, a fan designed as a radial fan 32-

[0046] As in Fig. As shown schematically in Figure 2, the fan housing 32A is positioned in the gap 29 between the second side wall 23 and the evaporation tray 4 and fills this gap 29. The inlet opening 32B is connected to the first sub-compartment of the second sub-volume 2B. The outlet opening 32C is connected to the second sub-compartment of the second sub-volume 2B.

[0047] As in Fig. As further shown in Figure 4, a seal can be provided between the evaporation tray 4 and the inner wall 24 and between the evaporation tray 4 and the rear wall 25 of the engine room in order to reduce parasitic air currents between the lower and upper sub-chambers of the second sub-volume 2B of the engine room. Fig.Figure 4 shows, purely by way of example, that the evaporation tray 4 abuts the inner wall 24 for sealing, in particular with its circumferential wall 41, and that a sealing element 55 is arranged between the evaporation tray 4 and the rear wall 25 of the engine room. Alternatively, it can also be provided that the evaporation tray 4 abuts both the inner wall 24 and the rear wall 25 of the engine room, or that a sealing element 55 is arranged between the evaporation tray 4 and the inner wall 24 and between the evaporation tray 4 and the rear wall 25 of the engine room. Of course, the evaporation tray 4 can also abut the rear wall 25 of the engine room, and a sealing element 55 can be arranged between the evaporation tray 4 and the inner wall 24.

[0048] Although the present invention has been explained above by way of example embodiments, it is not limited to these, but can be modified in many ways. In particular, combinations of the preceding embodiments are also conceivable. REFERENCE MARK 1 storage compartment 2 Engine room 2A first sub-volume of the engine room 2B second sub-volume of the engine room 3 Refrigerant circuit 4 Evaporation tray 5 Seal 10. Bottom wall of the storage compartment 11 Ceiling wall of the storage compartment 12 side walls of the storage compartment 13 Back wall of the storage compartment 20 Floor of the engine room 21 Ceiling Floor of the engine room 22 first engine room side wall 23 second engine room side wall 24 Interior wall 25 Engine room rear wall 25a Outer surface of the rear wall 26 Intake opening 28 Exhaust opening 29 gap 31 liquefiers 32 fans 32A fan housing 32B Inlet opening 32C outlet opening 32D wheel 33 evaporators 34 compressors 40 Bottom of the evaporation tray 41 Circumferential wall of the evaporation tray 41A Wall section 42 Opening the evaporation tray 43 collars 55 Sealing element 100 refrigeration unit B Floor of the installation niche C Transverse direction G gap N Installation niche P2 arrow S Side walls of the installation niche T Depth direction V Vertical direction W Back wall of the installation niche

Claims

[1] Refrigerating appliance (100), in particular household refrigerating appliance, comprising: a storage compartment (1) for holding refrigerated goods; a separate machine room (2) from the storage compartment (1); a refrigerant circuit (3) thermally coupled to the storage compartment (1) for heat removal from the storage compartment (1) with a condenser (31) and a compressor (34) arranged in the engine room (2); an evaporation tray (4) arranged in the engine room (2) for collecting condensate; and a fan (32) for conveying air through the engine room (2); wherein the condenser (31) divides the engine room (2) in respect of a transverse direction (C) into a first partial volume (2A) and a second partial volume (2B), the evaporation tray (4) divides the second sub-volume (2B) with respect to a vertical direction (V) into a first sub-space in which the compressor (34) is positioned, and a second sub-space fluidically connected to the first sub-space, the fan (32) is designed and arranged to draw air into the engine room (2) via an intake opening (26) connected to the first partial volume (2B), to guide it through the condenser (31) into the first partial volume of the second partial volume (2B) and through the second partial volume of the second partial volume (2B), and to expel it from the engine room (2) via an exhaust opening (28) connected to the second partial volume of the second partial volume (2B). wherein the engine room (2) is bounded in the transverse direction (C) by a first engine room side wall (22) and an opposite second engine room side wall (23), and wherein a gap (29) is formed between the second engine room side wall (23) and the evaporation tray (4), which connects the first and the second sub-space of the second sub-volume (2B), characterized by , that the fan (32) is positioned in the gap (29) between the second side wall (23) and the evaporation tray (4). [2] Refrigeration device (100) according to claim 1, wherein the fan (32) has a fan housing (32A) with an inlet opening (32B) and an outlet opening (32C) and an impeller (32D) received in the fan housing (32A), which defines a suction side connected to the inlet opening (32B) and a pressure side connected to the outlet opening (32C), wherein the fan housing (32A) fills the gap (29) between the second side wall (23) and the evaporation tray (4), and wherein the inlet opening (32B) is connected to the first sub-space of the second sub-volume (2B) and the outlet opening (32C) is connected to the second sub-space of the second sub-volume (2B). [3] Refrigeration appliance (100) according to claim 1 or 2, wherein the machine room (2) is bounded in the vertical direction (V) by a floor (20) and a ceiling (21), wherein the first sub-space of the second sub-volume (2B) is bounded in the vertical direction (V) by the floor (20) and the evaporation tray (4), wherein the second sub-space of the second sub-volume (2B) is bounded in the vertical direction (V) by the evaporation tray (4) and the ceiling (21), and wherein the evaporation tray (4) has an opening (42) which faces the ceiling (21). [4] Refrigeration device (100) according to one of the preceding claims, wherein the machine room (2) is bounded in respect of a depth direction (T) by an inner wall (24) and a machine room rear wall (25), and wherein the evaporation tray (4) extends along the depth direction (T) from the inner wall (24) to the machine room rear wall (25). [5] Refrigeration device (100) according to claim 4, wherein a seal is provided between the evaporation tray (4) and the inner wall (24) and between the evaporation tray (4) and the rear wall of the machine room (25). [6] Refrigeration device (100) according to claim 4 or 5, wherein the evaporation tray (4) rests against the inner wall (24) and / or against the rear wall of the machine room (25) for sealing. [7] Refrigeration device (100) according to one of claims 4 to 6, wherein a sealing element (55) is arranged between the evaporation tray (4) and the inner wall (24) and / or between the evaporation tray (4) and the rear wall of the machine room (25). [8] Refrigeration device (100) according to one of claims 4 to 7, wherein the intake opening (26) is formed in the rear wall (25) of the machine room. [9] Refrigeration device (100) according to any one of claims 4 to 8, wherein the discharge opening (28) is formed in the rear wall of the machine room (25) or is limited in respect of the depth direction (T) by the rear wall of the machine room (25). [10] Refrigeration device (100) according to one of the preceding claims, wherein the fan (32) is designed as a radial fan. [11] Refrigeration device (100) according to one of the preceding claims, wherein the evaporation tray (4) is arranged in thermally conductive contact with the compressor (34). [12] Refrigeration device (100) according to one of the preceding claims, wherein the evaporation tray (4) has a bottom (40) and a circumferential wall (41) projecting from the bottom (40), wherein the bottom (40) of the evaporation tray (4) divides the second partial volume (2B) of the machine room (2) with respect to the vertical direction (V), and wherein the circumferential wall (41) extends parallel to the vertical direction (V).

Images