A cooling device having an evaporator assembly

Abstract

By the present invention, a cooling device (1) is described which comprises a body (2) which has a body inner wall (34) provided in a manner encircling at least one storage compartment and a body outer wall (3) provided in a distanced manner to the body inner wall (34), an evaporator assembly (9) which at least partially extends in a longitudinal direction (x) of the body inner wall (34) and which has an evaporator (10); wherein the evaporator assembly (9) comprises an evaporator heater (13) which has heater horizontal part (37a) in a manner extending in the longitudinal direction (x), and wherein in order to provide return of the air, which exists in a first storage compartment (7) which has an inner space (39) where the evaporator assembly (9) is at least partially positioned, to the evaporator (10), the evaporator assembly (9) has at least one return channel (28) provided at a side facing the first storage compartment (7). In the invention, the return channel (28) is provided in a manner opening to a lower part (38) of the evaporator (10) in a manner not overlapping with the heater horizontal part (37a) in a depth direction (z) which is from the first storage compartment (7) towards the evaporator assembly (9).

Description

[0001] SPECIFICATION

[0002] A COOLING DEVICE HAVING AN EVAPORATOR ASSEMBLY

[0003] TECHNICAL FIELD

[0004] The present invention relates to a cooling device having an evaporator assembly according to preamble of claim 1.

[0005] PRIOR ART

[0006] In cooling devices, particularly in household cooling devices, namely in refrigerators, an evaporator assembly is assembled to a body inner wall of storage compartments. The evaporator assembly comprises at least one evaporator. An evaporator heater, particularly a radiant heater is retained to the evaporator in order to realize a defrost process. Since the movement of hot air, which occurs as a result of the heat produced by the radiant heater, to return channels and return pipes through which cold air passes is going to create a hot chimney effect, said movement of air is an undesired condition. In such a case, the hot air can lead to increase of inner temperature of cold storage compartments by passing through the return channels and return pipes.

[0007] In the patent application publication numbered EP3701204A1, a refrigerator is described which has an evaporator chamber with an evaporator, which is flowed through from the bottom to the top, and at least one first and one second storage chamber, which is cooled by air exchange with the evaporator chamber. An elongate inlet volume is exposed in the evaporator chamber under a bottom inflow side of the evaporator. The exhaust lines of the two storage chambers open up into the inlet volume on different sides of a partition.

[0008] The invention provides an additional improvement, an additional advantage or an alternative to the prior art.

[0009] BRIEF DESCRIPTION OF THE INVENTION

[0010] One of the objects of the present invention is to provide a cooling device having an evaporator assembly arranged in a manner not leading to temperature increase in storage compartments. In order to achieve said object, the present invention is a cooling device comprising a body which has a body inner wall provided in a manner encircling at least one storage compartment and a body outer wall provided in a distanced manner to the body inner wall, an evaporator assembly which at least partially extends in a longitudinal direction of the body inner wall and which has an evaporator; wherein the evaporator assembly comprises an evaporator heater which has heater horizontal part in a manner extending in the longitudinal direction, and wherein in order to provide return of the air, which exists in a first storage compartment which has an inner space where the evaporator assembly is at least partially positioned, to the evaporator, the evaporator assembly has at least one return channel provided at a side facing the first storage compartment. The cooling device is characterized in that the return channel is provided in a manner opening to a lower part of the evaporator in a manner not overlapping with the heater horizontal part in a depth direction which is from the first storage compartment towards the evaporator assembly. Thus, movement of hot air, which occurs as a result of the heat produced by the evaporator heater, to the return channel and reaching of said hot air to the related storage compartments are prevented, and therefore the storage compartments are prevented from being heated. In other words, occurrence of “hot chimney effect” by moving of the hot air, which occurs as a result of heat produced by the evaporator heater, to the return channels in an undesired manner is prevented.

[0011] Here, said “cooling device” can be a cooling device used in houses and that operates with electricity, for instance, it can be a refrigerator or a similar household cooling device.

[0012] Here, said “storage compartment” can be a chamber or room of said cooling device wherein the objects to be cooled or frozen can be placed. In the cooling device, there can be more than one storage chamber or storage compartment.

[0013] Here, said “evaporator assembly” can mean an evaporator arrangement comprising at least one evaporator.

[0014] Here, said “evaporator heater” can mean a heater, particularly a radiant heater provided in a manner close to the evaporator for a defrost process of the evaporator.

[0015] In a possible embodiment of the invention, more than one return channel is provided at the side of the evaporator assembly which faces the first storage compartment such that said return channels are distanced with respect to each other in the longitudinal direction. Thus, hot chimney effect that may occur in each return channel is prevented.

[0016] In a possible embodiment of the invention, an evaporator cover is provided in a manner at least partially covering the side of the evaporator assembly which faces the first storage compartment, and the evaporator cover has a return opening in a manner corresponding to the related return channel. Thus, the air, which exists in the first storage compartment, is returned to the evaporator, and at the same time, the evaporator assembly is hidden in a manner not deteriorating aesthetics such that said evaporator assembly cannot be seen from the first storage compartment.

[0017] In a possible embodiment of the invention, the return channel is defined by an isolation element which exists in the evaporator cover. Thus, the return channel is arranged in a manner not overlapping with the heater horizontal part in the depth direction. Said isolation element moreover provides an insulation or isolation between the evaporator heater and the storage compartment.

[0018] Here, said “isolation element” can be an isolation element or a thermal insulation element, particularly an expanded polystyrene (EPS) arranged in a manner providing isolation between the evaporator and the evaporator cover.

[0019] In a possible embodiment of the invention, in the cooling device, moreover;

[0020] - a second storage compartment is provided where the cold air is fed by means of at least one first feeding pipe by a fan and where the air is returned to the evaporator by means of the first return pipe,

[0021] - the first return pipe has a first opening of the first return pipe at the second storage compartment side and a second opening of the first return pipe at the first storage compartment side,

[0022] - and the second opening of the first return pipe is provided in a manner opening to the lower part in a manner not overlapping with the heater horizontal part in the depth direction. Thus, the movement of the hot air, produced by the evaporator heater, to the return channel and reaching of said hot air to the second storage compartment are prevented, and the second storage compartment is prevented from being heated. In other words, occurrence of hot chimney effect in an undesired manner by the hot air which occurs as a result of heat produced by the evaporator heater is prevented.

[0023] In a possible embodiment of the invention, in the cooling device, moreover;

[0024] - a third storage compartment is provided which is adjacent to the second storage compartment and where the cold air is fed by means of at least one second feeding pipe by a fan and where the air is returned to the evaporator by means of the second return pipe,

[0025] - the second return pipe has a second opening of the second return pipe at the third storage compartment side and a second opening of the second return pipe at the first storage compartment side, - and the second opening of the second return pipe is provided in a manner opening to the lower part in a manner not overlapping with the heater horizontal part in the depth direction. Thus, movement of the hot air, produced by the evaporator heater, to the return channel and reaching of said hot air to the third storage compartment are prevented, and the third storage compartment is prevented from being heated. In other words, occurrence of hot chimney effect in an undesired manner by the hot air which occurs as a result of heat produced by the evaporator heater is prevented.

[0026] In a possible embodiment of the invention, the return channels and the return pipes are existing at opposite sides with respect to the evaporator. Thus, occurrence of hot chimney effect is prevented in the return channels that exist at opposite sides with respect to each other and in all of the return pipes.

[0027] In a possible embodiment of the invention, heater holding elements are provided in a manner supporting the heater horizontal part at the mutual lateral sides of the evaporator, and each heater holding element comprises a cutout part through which the heater horizontal part snap-fits, and the cutout parts are provided in a manner not overlapping with the return channels and the return pipes in the depth direction. Thus, the heater horizontal part which is the hottest part of the heater is arranged in a manner not overlapping with the return channels and the return pipes in the depth direction.

[0028] Here, said “heater holding element” can be a holding element, for instance, a holding bracket or a hanging bracket provided for retaining the evaporator heater to the evaporator.

[0029] In this context, with the indications “ceiling”, “base”, “upper”, “lower”, “front”, “rear”, “horizontal”, “vertical”, “upwards”, “downwards”, “inner”, “outer”, “inwardly”, “outwardly” etc. the positions and orientations given for intended use and intended arrangement of the cooling device and for a user then standing in front of the cooling device in a closed position of the door and viewing in the direction of the device are indicated.

[0030] Each possible embodiment disclosed in this text can be combined with the other possible embodiments disclosed in this text if there is no any technical constraint.

[0031] EXPLANATION OF FIGURES

[0032] The figures, whose brief explanations are herewith provided, are solely intended for providing a better understanding of the present invention and are as such not intended to define the scope of protection or the context in which said scope is to be interpreted in the absence of the description.

[0033] Figure 1 is a frontal view of the cooling device where the subject matter evaporator assembly exists.

[0034] Figure 2 is a rear view of the cooling device where the subject matter evaporator assembly exists.

[0035] Figure 3 is a lateral view which shows the detail A of the cooling device where the subject matter evaporator assembly exists.

[0036] Figure 4 shows the detail A which shows a lateral detailed view of the cooling device where the subject matter evaporator assembly exists.

[0037] Figure 5 is an isometric view of the subject matter evaporator assembly with no evaporator cover.

[0038] Figure 6 is a frontal view of the subject matter evaporator assembly with no evaporator cover.

[0039] DETAILED DESCRIPTION OF THE FIGURES

[0040] In this detailed description, the subject matter is explained with references to examples without forming any restrictive effect only in order to make the subject more understandable.

[0041] In this context, said “longitudinal direction (x)” describes a longitudinal direction of the cooling device (1), a longitudinal direction of the body inner wall (34), a longitudinal direction of the evaporator assembly (9), a longitudinal direction of the evaporator (10), and a longitudinal direction of the evaporator heater (13).

[0042] In this context, said “vertical direction (y)” describes a vertical direction of the cooling device (1), a vertical direction of the body inner wall (34), a vertical direction of the evaporator assembly (9), a vertical direction of the evaporator (10), and a vertical direction of the evaporator heater (13). In this context, said “depth direction (z)” describes a depth direction of the cooling device (1), a depth direction of the body inner wall (34), a depth direction of the evaporator assembly (9), a depth direction of the evaporator (10), and a depth direction of the evaporator heater (13).

[0043] In Figure 1, a frontal view of a cooling device (1) is given. The cooling device (1) given for exemplification purpose has a freezing compartment and a cooling compartment. The freezing compartment and the cooling compartment are provided in a manner restrained by a body (2) and a door (26). The door (26) is provided at a front side of the cooling device (1). The body (2) encircles the freezing compartment and the cooling compartment. The cooling compartment exists at an upper side of the cooling device (1). The freezing compartment is provided at a lower part of the cooling device (1) which is opposite to the upper part. The lower side means a side which is closer to the floor where the cooling device (1) seats. The freezing compartment can be formed by more than one sub-compartment. As shall be seen in Figure 1 , the freezing compartment in the cooling device (1) is formed by three subcompartments: a first storage compartment (7), a second storage compartment (6), a third storage compartment (5). As shall be seen in Figure 1 , the cooling compartment is formed by only one compartment: a fourth storage compartment (4). Each of the freezing compartment and the cooling compartment has an inner space for storing the objects to be cooled or to be frozen. The cooling device (1) comprises a body inner wall (34) which faces the inner space. An evaporator assembly (9) vertically extends at least partially along the body inner wall (34), particularly along a body rear wall. The body rear wall is a wall which provides access to the related storage compartment and which exists at the opposite side of a front opening which is at the front side where the door (26) exists. In other words, the front opening is an opening which can be covered by the door (26) at a closed position and which exists at the front side of the cooling device (1). The body (2) of the cooling device (1) has a body outer wall (3) provided in a distanced manner to the body inner wall (34). There can be an insulation element, which provides insulation between the outer medium and the inner space of the cooling device (1), between the body outer wall (3) and the body inner wall (34). The evaporator assembly (9) is provided in a manner extending in a longitudinal direction (x) and in a vertical direction (y) of the body inner wall (34). As shall be seen in Figure 5, a retaining device (15) is provided for fixing the evaporator assembly (9) in the inner space (39). The retaining device (15) is formed in a one-piece manner from a sheet metal material. Said retaining device (15) has a vertical plate (16) which is essentially in rectangular form and provided in a manner essentially extending parallel to a body rear wall which faces the body inner wall (34), particularly the inner space (39) in the assembled state. The first wall plate (17) and the second wall plate (18) are obtained by bending the two edges of the vertical plate (16). When the assembly of the cooling device (1) is completed and when the cooling device (1) is placed in an orthogonal manner at the usage position, said edges are provided in a vertical manner. An evaporation tray (19) is formed on a third edge of the vertical plate (16). Said third edge is an edge that exists at the lower side, after the retaining device (15) has been placed to the completed cooling device (1).

[0044] With reference to Figures 5 and 6, in a middle part of the evaporator assembly (9), there is an evaporator (10), particularly there is a finned evaporator. The evaporator (10) is a vertical type evaporator which extends essentially in a parallel direction preferably to the body rear wall. The evaporator assembly (9) additionally comprises an evaporator heater (13), a heater holding element (14) for holding of the evaporator heater (13), and bypass blockers (11 , 12) provided at the lateral sides of the evaporator (10). The evaporator (10) comprises pluralities of mutual parallel fins and a coolant pipe (20) which extends in a curved manner through the openings of the fins. Here, the pipe cycles of the coolant pipe (20) are arranged in a manner making protrusion beyond the outer fins. In more details, the coolant pipe (20) essentially has flat parts (21) which essentially extend in a parallel manner to each other and bent parts (22) provided between the flat parts (21). The fins are essentially connected to the flat parts (21) of the coolant pipe (20). Thus, the fins define a finned region which receives the flat parts (21) of the coolant pipe (20). Accordingly, the bent parts (22) remain outside the finned region. There are two bypass blockers (11, 12) provided in a manner partially receiving the lateral sides of the evaporator (10), in other words, there are two insulation elements. The first bypass blocker (11) is provided at the right side of the evaporator (10). The second bypass blocker (12) is provided at the left side of the evaporator (10). The bypass blockers (11 , 12) essentially extend along the lateral side of the evaporator (10). In more details, the bypass blockers (11 , 12) are arranged in a manner engaging to the coolant pipes (20) of the evaporator (10) at the lateral sides of the evaporator (10). The bypass blockers (11 , 12) are preferably provided in a manner at least partially receiving one or more of the related pipe cycles at the lateral sides. In more details, each of the bypass blockers (11, 12) has recesses provided in a manner receiving the pipe cycles of the coolant pipes (20). At a lower side of the evaporator (10), there is at least one part of the evaporator heater (13). The evaporator heater (13) is used for a purpose known as defrost process, in other words, for dissolving of the white ice that precipitates on the evaporator (10) during operation as a result of the rising of mild air and radiation. The evaporator heater (13) essentially consists of two parts: a heater horizontal part (37a) provided at the lower part of the evaporator (10) and provided essentially in the longitudinal direction (x), and a heater vertical part (37b) provided in a manner essentially extending in the vertical direction (y). The heater horizontal part (37a) is the hotter part of the evaporator heater (13) which essentially realizes the defrost process. There are two heater holding elements (14) which extend essentially along the related lateral sides of the evaporator (10). The heater holding elements (14) are positioned between the related bypass blockers (11, 12) and the related lateral sides of the evaporator (10). The heater holding elements (14) are arranged in a manner connected to the coolant pipes (20) of the evaporator (10). The heater holding elements (14), moreover, the evaporator heater (13), particularly a radiant heater is arranged to fit through the heater holding elements (14) at a lower side of the evaporator (10). The heater holding elements (14) are provided in a manner supporting the heater horizontal part (37a) at the mutual lateral sides of the evaporator (10). The heater holding element (14) comprises a cutout part (40) through which the heater horizontal part (37a) snap-fits.

[0045] As shall be seen in Figures 3 and 4, in the cooling device (1), in order to provide return of the air, which exists in the first storage compartment (7) which has the inner space (39) where the evaporator assembly (9) is at least partially positioned, to the evaporator (10), there is at least one return channel (28) provided at a side of the evaporator assembly (9) which faces the first storage compartment (7). In the possible embodiment of the invention, the return channel (28) is provided in a manner opening to a lower part (38) of the evaporator (10) in a manner not overlapping with the heater horizontal part (37a) in a depth direction (z) which is from the first storage compartment (7) towards the evaporator assembly (9). Preferably, there is more than one return channel (28) in a manner distanced to each other in the direction of longitudinal direction (x) at the side of the evaporator assembly (9) that faces the first storage compartment (7). More than one return channel (28) is provided in a manner opening to the lower part (38) of the evaporator (10) in a manner not overlapping with the heater horizontal part (37a) in depth direction (z) from the first storage compartment (7) towards the evaporator assembly (9). As shall be seen in Figures 3 and 4, the evaporator assembly (9) comprises an evaporator cover (29) provided in a manner at least partially covering the side of the evaporator assembly (9) that faces the first storage compartment (7). Said evaporator cover (29) has a return opening (27) in a manner corresponding to the related return channel (28). The return opening (27) can comprise multiple cutout parts provided on the evaporator cover (29). There is an isolation element (41), particularly an expanded polystyrene (EPS) inside the evaporator cover (29). The return channels (28) are defined by said isolation element (41).

[0046] With reference to Figure 2, the fourth storage compartment (4) has a first rear side (24a). The second storage compartment (6) has a second rear side (24b). The third storage compartment (5) has a third rear side (24c). The first storage compartment (7) has a fourth rear side (24d). There is a first return pipe (23a) and a first feeding pipe (25a) extending between the second rear side (24b) and the fourth rear side (24d). Again there is a second return pipe (23b) and a second feeding pipe (25b) extending between the third rear side (24c) and the fourth rear side (24d). In the cooling device (1), moreover, as shall be seen in Figure 1 , there is the second storage compartment (6) where the cold air is fed by means of at least one first feeding pipe (25a) by a fan (8) and where air is returned to the evaporator (10) by means of the first return pipe (23a). As shall be seen in Figure 1 , the first return pipe (23a) has a first opening of the first return pipe (30a) at the second storage compartment (6) side and a second opening of the first return pipe (30b) at the first storage compartment (7) side. As can be seen in detail A (A) given in Figure 4, the second opening of the first return pipe (30b) is provided in a manner opening to the lower part (38) in a manner not overlapping with the heater horizontal part (37a) in the depth direction (z). On the other hand, in the cooling device (1), moreover; as shall be seen in Figure 1 , there is the third storage compartment (5) which is adjacent to the second storage compartment (6), where the cold air is fed by means of at least one second feeding pipe (25b) by the same fan (8) and where the return of the air to the evaporator (10) is provided by the second return pipe (23b). As shall be seen in Figure 1 , the second return pipe (23b) has a first opening of the second return pipe (31a) at the third storage compartment (5) side and a second opening of the second return pipe (31b) at the first storage compartment (7) side. The second opening of the second return pipe (30b) is provided in a manner opening to the lower part in a manner not overlapping with the heater horizontal part (37a) in the depth direction (z). In other words, the cutout parts (40) are provided in a manner not overlapping with the return channels (28) and the return pipes (23a, 23b) in the depth direction (z). As shall be seen in Figure 4, the return channels (28) and the return pipes (23a, 23b) exist at opposite sides with respect to the evaporator (10). The returning air (RA) which passes through the return channels (28) and the return pipes (23a, 23b) moves upwardly and passes through the evaporator (10). The returning air (RA) that passes through the evaporator (10) is fed to the related compartments by means of the fan (8) that exists at the upper side of the evaporator (10). A part of the cold air accelerated by the fan (8) passes through the first air flow path (36a), and a part thereof passes through the first opening of the first feeding pipe (32a) and exits the second opening of the first feeding pipe (32b), and by means of this, it is fed to the second storage compartment (6). Another part of the cold air accelerated by the fan (8) again passes through the first air flow path (36a) and is fed to the first storage compartment (7) by means of the first feeding opening (35a). Another part of the cold air accelerated by the fan (8) passes through the second air flow path (36b) and a part thereof passes through the first opening of the second feeding pipe (33a) and exits the second opening of the second feeding pipe (33b) and by means of this, it is fed to the third storage compartment (5). Another part of the cold air accelerated by the fan (8) again passes through the second air flow path (36b) and is fed to the first storage compartment (7) by means of the second feeding opening (35b).

[0047] As also described beforehand, the return channels (28) and the return pipes (23a, 23b) are arranged in a manner not overlapping with the heater horizontal part (37a) in the depth direction (z) which is towards the evaporator assembly (9). When an imaginary first reference line (RL1) is drawn in the depth direction (z) from a first reference point (R1) of the return channels (28) which is close to the heater horizontal part (37a), the heater horizontal part (37a) is provided to be at the upper side of the first reference line (RL1). In other words, the heater horizontal part (37a) is provided in a manner not overlapping with the return channels (28) in the depth direction (z). In a similar manner, when an imaginary second reference line (RL2) is drawn in depth direction (z) from a second reference point (R2) of the return pipes (23a, 23b) which is close to the heater horizontal part (37a), the heater horizontal part (37a) is provided to be at the upper side of the first reference line (RL2). In other words, the heater horizontal part (37a) is provided in a manner not overlapping with the return pipes (23a, 23b) in the depth direction (z). Thus, the hot air, heated by the heat produced by the evaporator heater (13), is prevented from moving to the related return channel (28) and from reaching the related storage compartments, and the increase of the temperature of the related storage compartments is prevented. In other words, occurrence of “hot chimney effect” by the hot air, which occurs as a result of heat produced by the evaporator heater (13), in the return channels (28) and in the return pipes (23a, 23b) in an undesired manner is prevented.

[0048] REFERENCE LIST

[0049] 1. cooling device

[0050] 2. body

[0051] 3. body outer wall

[0052] 4. fourth storage compartment

[0053] 5. third storage compartment

[0054] 6. second storage compartment

[0055] 7. first storage compartment

[0056] 8. fan

[0057] 9. evaporator assembly

[0058] 10. evaporator

[0059] 11. first bypass blocker

[0060] 12. second bypass blocker

[0061] 13. evaporator heater

[0062] 14. heater holding element

[0063] 15. retaining device

[0064] 16. vertical plate

[0065] 17. first wall plate

[0066] 18. second wall plate

[0067] 19. evaporation tray

[0068] 20. coolant pipe

[0069] 21. flat part

[0070] 22. bent part

[0071] 23a. first return pipe

[0072] 23b. second return pipe

[0073] 24a. first rear side

[0074] 24b. second rear side

[0075] 24c. third rear side

[0076] 24d. fourth rear side

[0077] 25a. first feeding pipe

[0078] 25b. second feeding pipe

[0079] 26. door

[0080] 27. return opening

[0081] 28. return channel

[0082] 29. evaporator cover

[0083] 30a. first opening of the first return pipe 30b. second opening of the first return pipe

[0084] 31a. first opening of the second return pipe

[0085] 31b. second opening of the second return pipe 32a. first opening of the first feeding pipe

[0086] 32b. second opening of the first feeding pipe 33a. first opening of the second feeding pipe 33b. second opening of the second feeding pipe 34. body inner wall

[0087] 35a. first feeding opening

[0088] 35b. second feeding opening

[0089] 36a. first air flow path

[0090] 36b. second air flow path

[0091] 37a. heater horizontal part

[0092] 37b. heater vertical part

[0093] 38. lower part

[0094] 39. inner space

[0095] 40. cutout part

[0096] 41. isolation element

[0097] R1. first reference point

[0098] R2. second reference point RL1. first reference line

[0099] RL2. second reference line

[0100] RA. returning air

[0101] A. detail A y. vertical direction x. longitudinal direction z. depth direction

Claims

CLAIMS1. A cooling device (1) comprising a body (2) which has a body inner wall (34) provided in a manner encircling at least one storage compartment and a body outer wall (3) provided in a distanced manner to the body inner wall (34), an evaporator assembly (9) which at least partially extends in a longitudinal direction (x) of the body inner wall (34) and which has an evaporator (10); wherein the evaporator assembly (9) comprises an evaporator heater (13) which has heater horizontal part (37a) in a manner extending in the longitudinal direction (x), and wherein in order to provide return of the air, which exists in a first storage compartment (7) which has an inner space (39) where the evaporator assembly (9) is at least partially positioned, to the evaporator (10), the evaporator assembly (9) has at least one return channel (28) provided at a side facing the first storage compartment (7), characterized in that the return channel (28) is provided in a manner opening to a lower part (38) of the evaporator (10) in a manner not overlapping with the heater horizontal part (37a) in a depth direction (z) which is from the first storage compartment (7) towards the evaporator assembly (9).

2. The cooling device (1) according to Claim 1, wherein more than one return channel (28) is provided at the side of the evaporator assembly (9) which faces the first storage compartment (7) such that said return channels (28) are distanced with respect to each other in the longitudinal direction (x).

3. The cooling device (1) according to Claims 1 or 2, wherein an evaporator cover (29) is provided in a manner at least partially covering the side of the evaporator assembly (9) which faces the first storage compartment (7), and the evaporator cover (29) has a return opening (27) in a manner corresponding to the related return channel (28).

4. The cooling device (1) according to Claim 3, wherein the return channel (28) is defined by an isolation element (41) which exists in the evaporator cover (29).

5. The cooling device (1) according to any one of the preceding claims, wherein in the cooling device (1), moreover; a second storage compartment (6) is provided where the cold air is fed by means of at least one first feeding pipe (25a) by a fan (8) and where the air is returned to the evaporator (10) by means of the first return pipe (23a),the first return pipe (23a) has a first opening of the first return pipe (30a) at the second storage compartment (6) side and a second opening of the first return pipe (30b) at the first storage compartment (7) side, and the second opening of the first return pipe (30b) is provided in a manner opening to the lower part (38) in a manner not overlapping with the heater horizontal part (37a) in the depth direction (z).

6. The cooling device (1) according to Claim 5, wherein in the cooling device (1), moreover; a third storage compartment (5) is provided which is adjacent to the second storage compartment (6) and where the cold air is fed by means of at least one second feeding pipe (25b) by a fan (8) and where the air is returned to the evaporator (10) by means of the second return pipe (23b), the second return pipe (23b) has a second opening of the second return pipe (31a) at the third storage compartment (5) side and a second opening of the second return pipe (31b) at the first storage compartment (7) side, and the second opening of the second return pipe (31b) is provided in a manner opening to the lower part in a manner not overlapping with the heater horizontal part (37a) in the depth direction (z).

7. The cooling device (1) according to Claim 6, wherein the return channels (28) and the return pipes (23a, 23b) are existing at opposite sides with respect to the evaporator (10).

8. The cooling device (1) according to Claims 6 or 7, wherein heater holding elements (14) are provided in a manner supporting the heater horizontal part (37a) at the mutual lateral sides of the evaporator (10), and each heater holding element (14) comprises a cutout part (40) through which the heater horizontal part (37a) snap-fits, and the cutout parts (40) are provided in a manner not overlapping with the return channels (28) and the return pipes (23a, 23b) in the depth direction (z).

Images