Refrigeration appliance

Abstract

The embodiment of the invention provides a refrigeration appliance. The refrigeration appliance is provided with a first chamber, a second chamber and a third chamber which are separated from one another in a heat insulation mode. The second chamber and the third chamber are arranged side by side with the first chamber in the width direction, and the second chamber is located above the third chamber. The first evaporator is used for cooling the first chamber and the second chamber and is arranged in the first chamber; the second evaporator is used for cooling the third chamber; a supply passage communicating the first chamber to the second chamber for supplying the gas cooled by the first evaporator to the second chamber; and the return channel enables the first chamber to communicate with the second chamber so as to guide gas in the second chamber to flow to the first evaporator. According to some embodiments of the invention, the volume of the refrigerating circuit can be reduced, a larger storage space can be provided, and / or the working temperature of each chamber can be adjusted more accurately.

Description

Technical Field

[0001] The present application relates to the field of household appliances, and in particular to a refrigeration appliance. Background Art

[0002] Nowadays, with the improvement of people's living standards, refrigeration appliances have entered thousands of households, such as refrigerators, wine cabinets and so on.

[0003] As users' demands for multifunctional household refrigeration appliances grow, refrigerators with multiple temperature zones are more popular among users, for example, refrigerators may have three or more compartments separated by thermal insulation, and the operating temperatures of different compartments may be independently set to meet the needs of users.

[0004] In a three-compartment refrigerator, three evaporators may be provided to cool the three compartments respectively. However, this will result in a complex structure of the refrigerator's refrigeration circuit and high costs. The refrigerator's refrigeration circuit requires a considerable volume, which reduces the storage space that the refrigerator can provide. In addition, refrigerators are also known that use a single evaporator to cool the three compartments. In such a single-cycle refrigerator, it is usually difficult to accurately adjust the operating temperature of each compartment. Summary of the invention

[0005] An object of the embodiments of the present application is to provide an improved refrigeration appliance so as to overcome at least one of the above-mentioned deficiencies in the prior art.

[0006] According to a first aspect of the present application, an embodiment of the present application provides a refrigeration appliance, which is provided with a first chamber, a second chamber, and a third chamber separated from each other in a heat-insulating manner. The second chamber and the third chamber are arranged side by side with the first chamber in the width direction, respectively, and the second chamber is located above the third chamber. The refrigeration appliance is also provided with: a first evaporator for cooling the first chamber and the second chamber, which is arranged in the first chamber; a second evaporator for cooling the third chamber; a supply channel, which connects the first chamber to the second chamber for supplying the gas cooled by the first evaporator to the second chamber; and a return channel, which connects the first chamber to the second chamber for guiding the gas in the second chamber to flow to the first evaporator.

[0007] The refrigeration appliance can adjust the temperature of three independent compartments by using two evaporators. The first compartment and the second compartment arranged side by side share the first evaporator through the supply channel and the return channel. The third compartment located below the second compartment is additionally provided with a second evaporator. As a result, the refrigeration circuit of the refrigeration appliance can be simplified and the volume occupied by the refrigeration circuit in the refrigeration appliance can be reduced. At the same time, it can ensure that the multiple compartments of the refrigeration appliance have independently set working temperatures. The temperature of each compartment can be accurately adjusted. The refrigeration appliance can be implemented in particular as a T-type side-by-side refrigerator, thereby providing more accurate temperature control and larger storage space in the T-type side-by-side refrigerator.

[0008] According to an optional embodiment of the present application, the return channel is at least partially located directly behind the third chamber, thereby helping to prevent condensation from occurring in the return channel.

[0009] According to an optional embodiment of the present application, the refrigeration appliance may include a third liner for delimiting the third chamber. The rear wall of the third liner may be provided with a step extending in the height direction, so that the inner recess located on the inner side of the third liner and the outer recess located on the outer side of the third liner are respectively formed on both sides of the step. The return channel may be at least partially arranged in the outer recess. The second evaporator may be at least partially arranged in the inner recess. Thus, the space of the third chamber occupied by the return channel can be reduced. The return channel and the second evaporator may at least partially overlap in the projection in the width direction, so as to prevent the depth dimension of the storage space of the third chamber from being reduced due to the return channel. The third chamber may have as large a storage space as possible.

[0010] According to an optional embodiment of the present application, the return channel may include an inlet section, an intermediate section and an outlet section connected in sequence, the inlet section leads to the second chamber, the outlet section leads to the first chamber, and the intermediate section is located between the inlet section and the outlet section. For example, the intermediate section may extend in the height direction to facilitate the possible condensed water to flow out of the return channel. The inlet section and the outlet section extend from the intermediate section transversely to the intermediate section in opposite directions, so that the return channel is formed in a Z shape. This structure helps to prevent condensed water from accumulating in the return channel and reduce the storage space occupied by the return channel. This is particularly advantageous for a return channel connected from the first chamber to the second chamber.

[0011] According to an optional embodiment of the present application, the inlet section and the outlet section may be connected to the rear wall of the second liner for delimiting the second chamber and the rear wall of the first liner for delimiting the first chamber, respectively. In this way, the return channel can be prevented from occupying the space of the partition wall between the third chamber and the first chamber, thereby preventing the thermal insulation effect between the first chamber and the third chamber from being reduced. Optionally, the projection of the inlet section and the middle section in the depth direction does not overlap with the projection of the first chamber in the depth direction. The return channel can generally avoid the first chamber in which the first evaporator is provided, thereby helping to prevent condensation from occurring in the return channel. For example, the projection of the partition wall between the third chamber and the first chamber in the depth direction may overlap with the projection of the middle section in the depth direction, thereby reducing the storage space occupied by the return channel

[0012] According to an optional embodiment of the present application, the bottom wall of the inlet section extends downwardly in a direction of the first chamber. Alternatively or additionally, the bottom wall of the outlet section extends downwardly in a direction of the first chamber. Thus, any condensed water that may occur can flow out of the return channel along the direction of gas flow.

[0013] According to an optional embodiment of the present application, at least one of the supply channel and the return channel may include a first channel section and a second channel section. The first channel section may be provided with a slot. The second channel section may be provided with an insert. The insert may be inserted into the slot so as to connect the first channel section to the second channel section, wherein a closed cavity closed by the insert is formed in the slot. With the help of the closed cavity, it is possible to prevent the thermal insulation material from leaking into the supply channel and / or the return channel during foaming.

[0014] The closed cavity is not a narrow gap formed due to manufacturing tolerance, but a structure intentionally designed to prevent leakage of the heat insulating material. The volume of the closed cavity is, for example, more than 20% of the volume of the slot. This helps to keep the heat insulating material in the closed cavity and not continue to flow into the internal channels of the first channel section and the second channel section.

[0015] According to an optional embodiment of the present application, the slot is configured to circumferentially surround the inner channel of the second channel section. Alternatively or additionally, the insert is configured to circumferentially surround the inner channel of the first channel section. Thus, the heat insulation material can be prevented from entering the supply channel and / or the return channel over the entire circumferential length.

[0016] According to an optional embodiment of the present application, the closed cavity is located in front of the insertion part in the insertion direction of the insertion part. On the possible leakage path, the front and rear of the closed cavity are respectively separated from the internal channel of the supply channel and / or the return channel and the foaming cavity by a longer path. The gap (if any) is long and narrow. In this way, leakage of the thermal insulation material can be further prevented.

[0017] According to an optional embodiment of the present application, the first channel section may be provided with a stopper located on the slot wall of the slot. The stopper may be configured to stop the insertion section in the insertion direction of the insertion section so that the insertion section is spaced apart from the bottom of the slot, and a closed cavity is formed between the insertion section and the bottom of the slot. This makes the first channel section and the second channel section easy to manufacture and assemble.

[0018] According to an optional embodiment of the present application, the second channel section may be provided with a protrusion protruding transversely to the insertion direction. The first channel section may abut against the protrusion to prevent the insertion portion from moving in the insertion direction so that the insertion portion is spaced apart from the bottom of the slot, and a closed cavity is formed between the insertion portion and the bottom of the slot. This also helps to simplify the manufacturing and assembly process of the first channel section and the second channel section. The protrusion also enables visual inspection to identify whether the first channel section and the second channel section are installed in place.

[0019] According to an optional embodiment of the present application, the slot may include a first slot portion and a second slot portion located in front of the first slot portion along the insertion direction. The width of the first slot portion may match the width of the insertion portion to allow the insertion portion to be inserted. The width of the second slot portion may be less than the width of the insertion portion to prevent the insertion portion from being inserted. After the insertion portion is inserted into the slot, the second slot portion may form a closed cavity.

[0020] According to an optional embodiment of the present application, the first chamber may include a freezer. The second chamber may include, for example, a refrigerator. The third chamber may include, for example, a variable temperature chamber or an ice chamber. In the refrigeration appliance, the layout of the freezer, refrigerator, and variable temperature chamber or ice chamber may be convenient for users. The variable temperature chamber or ice chamber may have a more precisely controlled working temperature.

[0021] According to an optional embodiment of the present application, the third chamber has a higher temperature control accuracy than the first chamber and the second chamber. By separately arranging the second evaporator, it is possible to ensure that the temperature of the third chamber is controlled with higher accuracy. Optionally, the operating temperature of the third chamber is higher than the operating temperature of the first chamber and lower than the operating temperature of the second chamber. In this case, the second evaporator can be frequently activated without affecting the temperature of the second chamber. Conversely, when the first evaporator is in operation, the temperature of the third chamber will not be affected.

[0022] According to an optional embodiment of the present application, the inlet and outlet of the supply channel are located below the center of the second chamber. The inlet of the supply channel is located in the middle of the first chamber. The supply channel is arranged so that the outlet of the supply channel is higher than the inlet of the supply channel. Thus, condensed water that may appear in the supply channel can flow out from the inlet of the supply channel. The cooling gas can flow into the lower part of the second chamber through the supply channel at a slight upward inclination, and then flow upward.

[0023] For example, the inlet of the supply channel and the outlet of the supply channel are opposite to each other and their projections in the width direction overlap each other. The supply channel extends substantially in the width direction. The supply channel may have a reduced length. The cooling gas does not need to change its flow direction in the supply channel.

[0024] According to an optional embodiment of the present application, the supply channel may include a first supply section and a second supply section. The first supply section may be connected to a side of the first chamber facing the second chamber. The second supply section may be connected to a side of the second chamber facing the first chamber. The first supply section may extend upwardly obliquely in a direction from the first chamber to the second chamber. The second supply section may extend horizontally. With such a supply channel, the cooling gas can be stably and reliably guided from the first chamber to the second chamber. The supply channel can be sealed with the first liner in a convenient manner, and can also guide the possible condensed water in the direction of the first chamber.

[0025] According to an optional embodiment of the present application, the first supply section extends backwards obliquely in the direction from the first compartment to the second compartment. By extending the first supply section backwards obliquely, it is ensured that the outlet of the supply channel is arranged close to the rear wall of the second inner container. At the same time, the second supply section can extend in the width direction, thereby being connected to the side wall of the second inner container in a substantially vertical manner, so as to achieve a sealed connection.

[0026] Optionally, the refrigeration appliance may be provided with a damper for regulating the flow of gas flowing from the first chamber into the second chamber. The damper may be arranged in the second supply section. Thus, the structure and installation process of the damper may be simplified. By cooperating the damper arranged in the second supply section with the first supply section, it is also possible to prevent the damper from freezing due to condensation.

[0027] According to an optional embodiment of the present application, the top wall of the first supply section can be connected to the horizontally extending top wall of the second supply section through the upwardly extending connecting wall of the second supply section. Compared with the first supply section, the second supply section can be provided with an enlarged cross-sectional area. This helps the first supply section to be connected to the second liner in a sealed manner. The bottom wall of the first supply section can be directly connected to the horizontally extending bottom wall of the second supply section, thereby helping to guide the condensed water out of the supply channel via the first supply section.

[0028] According to an optional embodiment of the present application, the refrigeration appliance may be provided with: a first air duct located in the first chamber, which is configured to supply the gas cooled by the first evaporator to the storage space of the first chamber through at least one first air outlet; and a first fan arranged in the first air duct, which is used to suck the gas cooled by the first evaporator. With the help of the first fan, the gas cooled by the first evaporator can be driven to flow to the storage space of the first chamber and the storage space of the second chamber.

[0029] According to an optional embodiment of the present application, the first fan is located below the center of the second chamber. This helps to make the first chamber have a larger storage space that is more convenient for users. The inlet of the supply channel can be open in the direction of the first fan, so that the gas sucked by the first fan can flow into the supply channel through the inlet of the supply channel in a centrifugal direction relative to the first fan. The gas cooled by the first evaporator can flow into the second chamber at a higher flow rate through the supply channel after being pressurized by the first fan.

[0030] According to an optional embodiment of the present application, the refrigeration appliance may be provided with a first air duct cover separating the first air duct from the storage space of the first compartment, and the first air duct cover is bent backward above the first fan. Alternatively or additionally, the first air duct has a narrowing section narrowing backward above the first fan. Therefore, downstream of the first fan, the first air duct may have a reduced thickness. Correspondingly, above the first fan, the storage space of the first compartment may have a greater depth.

[0031] According to an optional embodiment of the present application, the refrigeration appliance may be provided with a damper for regulating the flow of gas flowing from the first chamber into the second chamber. Optionally, no additional damper is required in the first air duct, thereby reducing the number of dampers required for the refrigeration appliance. In particular, the refrigeration appliance may have only a single damper for regulating the flow of gas flowing from the first chamber into the second chamber. This helps to provide a large volume of storage space in the refrigeration appliance. The damper may be particularly arranged between a first liner for delimiting the first chamber and a second liner for delimiting the second chamber. Thus, the volume of the storage space can be prevented from being reduced by the damper. For example, the damper may be arranged in the supply channel. Therefore, the volume of the storage space can be prevented from being reduced by the damper, and the damper can be assembled in a convenient manner.

[0032] According to an optional embodiment of the present application, the damper may include a rotatable baffle. The baffle may be arranged parallel to the depth direction and the height direction in its closed position. The rotation axis of the baffle may extend in the height direction, for example. Thus, the installation space occupied by the damper may be reduced.

[0033] According to an optional embodiment of the present application, the refrigeration appliance may be provided with a second air duct located in the second chamber. The second air duct may be configured to supply the gas flowing in through the supply channel to the storage space of the second chamber through at least one second air outlet. The second air duct may be configured to guide the gas to flow upward to the at least one second air outlet. The at least one second air outlet may in particular include a plurality of second air outlets and all are located above the center of the second chamber. This helps to achieve a desired uniform operating temperature in the second chamber.

[0034] According to an optional embodiment of the present application, the second air duct may have: a second main air duct for guiding the gas to flow upward, the second main air duct having a first side and a second side extending in the height direction opposite to each other, the first side including a slope section extending linearly upwardly in a direction away from the first compartment from the bottom of the second air duct; and a second air inlet, which is configured so that the supply channel can be connected to the second main air duct at the second side, and the second air inlet is opposite to the slope section of the first side. Thus, the space occupied by the second air duct can be reduced, in particular, the space occupied by the lower part of the second air duct can be reduced. The cooling gas entering the second air duct can be guided to flow upward by the slope section. For example, the slope section extends over more than half of the width dimension and / or height dimension of the second compartment. The angle at which the slope section is tilted upward can be especially above 45°. The bottom end of the slope section can be offset in the direction of the first compartment relative to the center of the second compartment in the width direction. The top end of the slope section can be offset upward relative to the center of the second compartment. This configuration of the sloped section helps guide the cooling gas and reduces the space occupied by the lower portion of the second air duct.

[0035] According to an optional embodiment of the present application, the bottom wall of the second air inlet may extend downwardly from the outlet of the supply channel toward the second main air duct and be connected to the bottom end of the slope section. The bottom wall of the second air inlet and the slope section form a substantially V-shaped structure. Condensed water that may appear may flow to the bottom of the V-shaped structure along the bottom wall of the second air inlet and the slope section.

[0036] According to an optional embodiment of the present application, the refrigeration appliance may be provided with: a second air duct assembly for forming a second air duct, the second air duct assembly may be provided with a receiving recess located below the slope section and on a side of the slope section away from the first chamber; and a second fan or a storage box body located outside the second air duct, the second fan or the storage box body being at least partially located in the receiving recess. With the aid of the slope section, the second air duct assembly may allow space below the slope section to be used for arranging the second fan or the storage box body, so that the storage space can have a larger volume.

[0037] According to an optional embodiment of the present application, the refrigeration appliance may be provided with a second air duct assembly for forming a second air duct, wherein the second air duct assembly includes a first air duct portion for forming a first section of the second air duct and a second air duct portion for forming a second section of the second air duct. The first air duct portion and the second air duct portion may be formed as separate components connected to each other. During assembly, the second air duct portion may be installed to the second inner liner after the first air duct portion is installed to the second inner liner. The width dimension of the first air duct portion is smaller than the width dimension of the second air duct portion. This is particularly conducive to the installation of the second air duct assembly. The inlet of the first air duct portion may be open in the width direction and connected to the supply channel, and the outlet of the first air duct portion may be open in the height direction and connected to the inlet of the second air duct portion. The cooling gas changes the flow direction in the first air duct portion.

[0038] According to an optional embodiment of the present application, the storage space of the second compartment may include a first storage space and a second storage space located below the first storage space. The second storage space can be set to have an operating temperature higher than the operating temperature of the first storage space. Thus, the functions of the refrigeration appliance can be more diversified.

[0039] According to an optional embodiment of the present application, the second chamber may be provided with a storage box body for separating the second storage space from the first storage space. The storage box body surrounds the second storage space, for example, in a thermally insulating manner, so that the second storage space and the first storage space can have independently settable temperatures. The storage box body can be arranged in the second chamber in a detachable manner.

[0040] The storage box body may be provided with a communication inlet and / or a communication outlet for fluidly connecting the second storage space with the first storage space. The second storage space may be connected to the first storage space through the communication inlet and / or the communication outlet, so that the second storage space and the first storage space are cooled by the cooling gas flowing out through the second air outlet.

[0041] According to an optional embodiment of the present application, the communication inlet and / or the communication outlet may be configured as a serpentine channel located in the housing wall of the storage box body. The serpentine channel may in particular have a bending angle of at least 180° and / or have at least 2 bending portions of more than 90°. The second storage space may be provided with a second fan for sucking the gas in the first storage space into the second storage space. When the second fan is not working, this communication inlet and / or the communication outlet may hinder the gas exchange between the first storage space and the second storage space. When the second fan is started, the gas may flow between the first storage space and the second storage space via the communication inlet and / or the communication outlet.

[0042] According to an optional embodiment of the present application, the second storage space may be provided with a blocking member for blocking the flow of gas between the second storage space and the first storage space. The blocking member may be configured to be able to move from a closed position for blocking the flow of gas between the second storage space and the first storage space to an open position for allowing the flow of gas between the second storage space and the first storage space under the action of the gas pressure applied by the second fan. The blocking member may be opened or closed according to the working state of the second fan, without the need to additionally provide a driving mechanism for the blocking member.

[0043] According to an optional embodiment of the present application, the rear wall of the storage box body may have a first rear wall section close to the first compartment and a second rear wall section away from the first compartment. The first rear wall section may be offset forward relative to the second rear wall section to form a rear wall recess behind the first rear wall section. The communication inlet for fluidly connecting the second storage space with the first storage space may be arranged at the second rear wall section, which is conducive to accurately adjusting the temperature in the second storage space. Alternatively or additionally, a second fan for sucking the gas in the first storage space into the second storage space may be arranged at the second rear wall section. In front of the second fan and the first rear wall section, a regular space may be reserved for accommodating items to be cooled.

[0044] According to an optional embodiment of the present application, the entrance of the return channel may be located directly behind the first rear wall section. The storage housing may shield the entrance of the return channel from the front. A certain amount of free space may be left between the first rear wall section and the entrance of the return channel. The offset arrangement of the first rear wall section and the second rear wall section helps to prevent a straight path from existing between the entrance of the return channel and the connecting entrance.

[0045] According to an optional embodiment of the present application, the second air duct of the refrigeration appliance may be partially located at the recessed portion of the rear wall, thereby making the structure of the refrigeration appliance more compact and providing a larger storage space.

[0046] According to an optional embodiment of the present application, the at least one second air outlet connecting the inlet and the second air duct is staggered in height and width. This is conducive to accurately adjusting the temperature in the second storage space. The at least one second air outlet can be arranged higher than the storage box body. This helps to achieve different operating temperatures of the first storage space and the second storage space in an energy-saving manner.

[0047] Optionally, the projections of the storage box body and the outlet of the supply channel along the width direction may at least partially overlap. This enables the third chamber to have as large a storage space as possible. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] The present invention will be described in more detail below with reference to the accompanying drawings, so that the principles, features and advantages of the present invention can be better understood. The accompanying drawings include:

[0049] Figure 1A A refrigeration appliance according to an exemplary embodiment of the present application is schematically shown. Figure 1B and Figure 1C Schematically shows the Figure 1A Sectional view of section lines AA and BB;

[0050] Figure 2 A refrigeration appliance according to an exemplary embodiment of the present invention is schematically shown from the rear;

[0051] Figure 3 Schematically shows the Figure 1A A cross-sectional view of the section line CC in FIG.

[0052] Figure 4 Schematically illustrates a return channel according to an exemplary embodiment of the present invention;

[0053] Figure 5 The connection structure between the inlet section and the middle section of the return channel is schematically shown;

[0054] Fig. 6A Schematically shows Figure 4 A partial enlarged view of the circled part, Figure 6B Schematically shows Fig. 6A A portion of the first channel section shown in FIG.

[0055] Fig. 7A , Figure 7B , Figure 7C and Fig.7D Schematically showing the formation of a closed cavity in another embodiment;

[0056] Figure 8 Schematically shows Figure 2 A partial enlarged view of the circled portion;

[0057] Fig. 9 The top view schematically shows Figure 8 The portion shown;

[0058] Fig. 10A and Fig. 10B A cross-sectional view of the supply channel is schematically shown from the rear;

[0059] Fig.11 A second air duct assembly of a refrigeration appliance according to an exemplary embodiment of the present invention is schematically shown from the rear;

[0060] Fig.12 A second air duct assembly of a refrigeration appliance according to an exemplary embodiment of the present invention is schematically shown in an exploded view;

[0061] Fig.13 A second air duct assembly of a refrigeration appliance according to an exemplary embodiment of the present invention is schematically shown from the front;

[0062] Fig.14 A cross-sectional view schematically shows a second compartment of a refrigeration appliance according to an exemplary embodiment of the present invention from a top view; and

[0063] Fig.15 A partial cross-sectional view of a second compartment of a refrigeration appliance according to an exemplary embodiment of the present invention is schematically shown.

[0064] Reference numerals list

[0065] 1 First Room

[0066] 10 First liner

[0067] 11 First Airway

[0068] 12 First Fan

[0069] 13 First air duct cover

[0070] 2 Second Room

[0071] 20 Second liner

[0072] 21 Second Airway

[0073] 2101 First Segment

[0074] 2102 Second Segment

[0075] 211 Second air outlet

[0076] 212 Second main air duct

[0077] 2121 First side

[0078] 2122 Second side

[0079] 2123 Slope section

[0080] 213 Second air inlet

[0081] 22 Second air duct assembly

[0082] 221 First air duct part

[0083] 222 Second air duct part

[0084] 223 Accommodating recess

[0085] 23 First Storage Space

[0086] 24 Second storage space

[0087] 241 Storage Box

[0088] 2411 Connecting Entrance

[0089] 2412 Connecting Exit

[0090] 2413 Blocking parts

[0091] 2414 First rear wall section

[0092] 2415 Second rear wall section

[0093] 2416 Rear wall recess

[0094] 242 Second Fan

[0095] 3. The third room

[0096] 30 Third liner

[0097] 301 Steps

[0098] 302 concave part

[0099] 303 outer concave part

[0100] 4. First evaporator

[0101] 5. Second evaporator

[0102] 6 Supply Channel

[0103] 61 First supply section

[0104] 62 Second supply section

[0105] 621 Connection Wall

[0106] 7 Return Channel

[0107] 71 Entrance section

[0108] 72 middle section

[0109] 73 Exit Section

[0110] 74 First channel section

[0111] 741 Slots

[0112] 742 Closed Cavity

[0113] 743 Stopper

[0114] 744 First slot part

[0115] 745 Second slot part

[0116] 75 Second channel section

[0117] 751 Insertion

[0118] 752 Bump

[0119] 8 Divider wall

[0120] 9. Air door

[0121] 91 Baffle DETAILED DESCRIPTION

[0122] In order to make the technical problems, technical solutions and beneficial technical effects to be solved by the present application clearer, the present application will be further described in detail below in conjunction with the accompanying drawings and multiple exemplary embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application, and are not used to limit the scope of protection of the present application.

[0123] First, for ease of understanding, let's go back to the description in the background technology section. The refrigeration appliances in the prior art have problems such as complex refrigeration circuit structure, high cost, limited storage space, and difficulty in accurately adjusting the working temperature of each compartment.

[0124] In response to at least one of the above technical problems or other possible technical problems, an exemplary embodiment of the present application provides a refrigeration appliance, which is provided with a first chamber, a second chamber and a third chamber separated from each other in a heat-insulating manner. The second chamber and the third chamber are arranged side by side with the first chamber in the width direction, respectively, and the second chamber is located above the third chamber. The refrigeration appliance is also provided with: a first evaporator for cooling the first chamber and the second chamber, which is arranged in the first chamber; a second evaporator for cooling the third chamber; a supply channel, which connects the first chamber to the second chamber for supplying the gas cooled by the first evaporator to the second chamber; and a return channel, which connects the first chamber to the second chamber for guiding the gas in the second chamber to flow to the first evaporator.

[0125] In order to better understand the present application, exemplary embodiments of the present application will be described below with reference to the accompanying drawings.

[0126] Before starting the detailed description, it should be pointed out that the directional terms used in the description process refer to the normal use state of the refrigeration appliance for the convenience of description and should not be understood as an absolute limitation on the corresponding features. In some drawings, arrows are schematically shown to indicate the height direction H, the width direction W and the depth direction D that are perpendicular to each other.

[0127] Figure 1AA refrigeration appliance according to an exemplary embodiment of the present application is schematically shown. Figure 1B and Figure 1C Schematically shows the Figure 1A sectional view of section lines AA and BB in FIG. In this embodiment, the refrigeration appliance may be implemented as a combined refrigerator having a refrigerating chamber and a freezing chamber, for example. As required, the present invention may also be applied to other refrigeration appliances other than refrigerators, such as a wine cabinet. The present invention is particularly suitable for household refrigeration appliances.

[0128] like Figure 1A As shown, the refrigeration appliance is provided with a first chamber 1, a second chamber 2 and a third chamber 3 which are separated from each other in a heat-insulating manner. The second chamber 2 and the third chamber 3 are arranged side by side with the first chamber 1 along the width direction W respectively. The second chamber 2 is located above the third chamber 3. The refrigeration appliance is also provided with: a first evaporator 4 for cooling the first chamber 1 and the second chamber 2, which is arranged in the first chamber 1; a second evaporator 5 for cooling the third chamber 3; a supply channel 6, which connects the first chamber 1 to the second chamber 2 for supplying the gas cooled by the first evaporator 4 to the second chamber 2; and a return channel 7, which connects the first chamber 1 to the second chamber 2 for guiding the gas in the second chamber 2 to flow to the first evaporator 4.

[0129] The refrigeration appliance can use two evaporators to adjust the temperature of three independent compartments. Through the supply channel 6 and the return channel 7, the first compartment 1 and the second compartment 2 arranged side by side share the first evaporator 4. The third compartment 3 located below the second compartment 2 is additionally provided with a second evaporator 5. In this way, the refrigeration circuit of the refrigeration appliance can be simplified and the volume occupied by the refrigeration circuit in the refrigeration appliance can be reduced. At the same time, it can ensure that the multiple compartments of the refrigeration appliance have independently set working temperatures. Figure 1A As shown, the first chamber 1 can be separated from the second chamber 2 and the third chamber 3 stacked one above the other by a partition wall 8 extending in the height direction H. The refrigeration appliance can be implemented as a T-shaped side-by-side refrigerator. According to an exemplary embodiment of the present invention, more accurate temperature control and larger storage space can be provided in a T-shaped side-by-side refrigerator.

[0130] In this embodiment, the first chamber 1 can be implemented as a freezer. The second chamber 2 can be implemented as a refrigerator, for example. The third chamber 3 can be implemented as a variable temperature chamber or an ice chamber. In the refrigeration appliance, such a layout of the freezer, refrigerator, and variable temperature chamber or ice chamber can be convenient for users. For example, the operating temperature of the freezer can be below minus 18°C. The operating temperature of the refrigerator can be between 0°C and 5°C. The operating temperature of the ice chamber is, for example, between minus 3°C and minus 5°C. The first evaporator 4 is arranged in the freezer to reduce the temperature of the freezer. The first chamber 1 (for example, the freezer) can have the lowest operating temperature. The operating temperature of the first evaporator 4 can be lower than the operating temperature of the second evaporator 5. The first evaporator 4 can also be used to reduce the temperature of the refrigerator through the supply channel 6 and the return channel 7. The variable temperature chamber or the ice chamber can have a more accurately controlled operating temperature. The second evaporator 5 is separately provided for cooling the third chamber 3, so that the third chamber 3 can have a higher temperature control accuracy than the first chamber 1 and the second chamber 2. Optionally, the operating temperature of the third chamber 3 can be set to be higher than the operating temperature of the first chamber 1 and lower than the operating temperature of the second chamber 2. In this case, the second evaporator 5 can be frequently activated without affecting the temperature of the second chamber 2. Conversely, in order to maintain the operating temperature of the second chamber 2 (for example, a refrigeration chamber), the first evaporator 4 can be frequently activated. When the first evaporator 4 is working, the temperature of the third chamber 3 will not be affected.

[0131] The refrigeration appliance may be provided with, for example, a first air duct 11 for supplying the gas cooled by the first evaporator 4 to the storage space of the first compartment 1 through at least one first air outlet, a second air duct 21 for supplying the gas flowing in through the supply channel 6 to the storage space of the second compartment 2 through at least one second air outlet 211, and a third air duct 31 (in the storage space of the third compartment 3) for supplying the gas cooled by the second evaporator 5 to the storage space of the third compartment 3 through at least one third air outlet. Figure 1A The first air duct 11 and the second air duct 21 can be connected to each other through the supply channel 6 and the return channel 7. The third air duct 31 is independent of the first air duct 11 and the second air duct 21.

[0132] like Figure 1A As shown, the refrigeration appliance may be provided with a damper 9 for adjusting the flow rate of the gas flowing from the first compartment 1 into the second compartment 2. The damper 9 may be particularly arranged between the first inner liner 10 for delimiting the first compartment 1 and the second inner liner 20 for delimiting the second compartment 2. Thus, the volume of the storage space may be prevented from being reduced due to the damper 9. For example, the damper 9 may be arranged in the supply channel 6. Therefore, the damper 9 may be assembled in a convenient manner, and the volume of the storage space may be prevented from being reduced due to the damper 9.

[0133] In another embodiment, it is also feasible that the damper 9 for adjusting the flow rate of the gas flowing from the first chamber 1 into the second chamber 2 is disposed in the first air duct 11 or the second air duct 21 .

[0134] In an exemplary embodiment according to the present invention, it is not necessary to provide an additional damper in the first air duct 11, so that the number of dampers required for the refrigeration appliance can be reduced. For example, when the temperature in the first chamber 1 is higher than its desired operating temperature, the first evaporator 4 works to supply cooling gas to the storage space of the first chamber 1. In this case, if the temperature in the second chamber 2 is not higher than its desired operating temperature, the damper 9 can be closed. When the temperature in the second chamber 2 is higher than its set operating temperature, the damper 9 can be opened, and the first evaporator 4 works to supply cooling gas to the storage space of the second chamber 2. In this case, a portion of the gas cooled by the first evaporator 4 can be supplied to the storage space of the first chamber 1. This is allowed, especially when the first chamber 1 is implemented as a freezer, and does not affect the function of the first chamber 1. Since the third chamber 3 can be provided with a second evaporator 5 dedicated to cooling the third chamber 3, it is not necessary to provide an additional damper in the third chamber 3. Therefore, the refrigeration appliance can have only a single damper 9. As described above, the single damper 9 is configured to adjust the flow rate of gas flowing from the first compartment 1 into the second compartment 2. This helps to provide a large volume of storage space in the refrigeration appliance. Therefore, according to an exemplary embodiment of the present invention, a refrigeration appliance that controls the temperature of three independent compartments using a single damper and two evaporators can be provided.

[0135] The refrigeration appliance may be provided with a first fan 12 arranged in the first air duct 11, which is used to suck the gas cooled by the first evaporator 4. With the help of the first fan 12, the gas cooled by the first evaporator 4 can be driven to flow to the storage space of the first compartment 1 and the storage space of the second compartment 2. The first evaporator 4 can be arranged at the bottom of the first compartment 1. The first fan 12 can be arranged, for example, at the middle of the first compartment 1 in the height direction H. The first fan 12 can suck the gas cooled by the first evaporator 4 upward.

[0136] like Figure 1B As shown, the refrigeration appliance may be provided with a first duct cover 13 separating the first duct 11 from the storage space of the first compartment 1. The first duct cover 13 may be bent backward above the first fan 12. Alternatively or additionally, the first duct 11 may have a narrowing section that narrows backward above the first fan 12. Downstream of the first fan 12, the first duct 11 may have a reduced thickness. Accordingly, above the first fan 12, the storage space of the first compartment 1 may have a greater depth. This part of the storage space corresponds to the height position of the user's eyes and is usually used more frequently. As a result, the storage space of the first compartment 1 can be made convenient for users to use.

[0137] The first fan 12 may be located particularly below the center of the second chamber 2. This helps to provide the first chamber 1 with a storage space that is more user-friendly. For example, the inlet of the supply channel 6 may be open toward the first fan 12 so that the gas sucked by the first fan 12 can flow into the supply channel 6 through the inlet of the supply channel 6 in a centrifugal direction relative to the first fan 12. The gas cooled by the first evaporator 4 can flow into the second chamber 2 at a higher flow rate through the supply channel 6 after being pressurized by the first fan 12.

[0138] In another embodiment, when the first fan 12 is located in the middle of the first chamber 1 in the height direction H, the supply passage 6 may also be arranged adjacent to the tops of the first chamber 1 and the second chamber 2. The cooling gas flowing from the outlet of the supply passage 6 into the second chamber 2 may be supplied to the storage space of the second chamber 2 at the top of the second chamber 2.

[0139] In other embodiments, the first fan 12 may also be arranged at other positions, for example, adjacent to the top of the first chamber 1. The supply channel 6 may be arranged adjacent to the first fan 12 and may guide the cooling gas from the first chamber 1 to the second chamber 2. In this case, the first air duct 11 tends to have a large thickness (measured in the depth direction D) throughout the entire height, requiring a large space.

[0140] exist Figure 1A , the supply channel 6 and the return channel 7 are shown in dotted lines. The return channel 7 may be located at least partially directly behind the third chamber 3, thereby helping to prevent condensation from occurring in the return channel 7. The return channel 7 may be projected at least partially on the third chamber 3 along the depth direction D. According to conventional design ideas, in order to make the return channel have a shorter length, the return channel may extend directly from the second chamber to the first chamber without crossing the third chamber. However, according to an exemplary embodiment of the present invention, the return channel 7 may extend downward behind the third chamber 3 to the bottom of the adjacent third chamber 3, and then extend to the first chamber 1. The return channel 7 may avoid the first chamber 1 over most of its length. In particular, the return channel 7 does not need to pass directly behind the first evaporator 4.

[0141] Figure 2 A refrigeration appliance according to an exemplary embodiment of the present invention is schematically shown from the rear. Figure 2 In the figure, the back plate of the refrigeration appliance is not shown, so that the first inner liner 10, the second inner liner 20 and the third inner liner 30 for defining the first chamber 1, the second chamber 2 and the third chamber 3 respectively can be seen.

[0142] The return channel 7 is connected to the second inner container 20 and the first inner container 10. The inlet and outlet of the return channel 7 can be connected to the rear wall of the second inner container 20 and the rear wall of the first inner container 10, respectively, so as to avoid the return channel 7 occupying the partition wall 8 between the third chamber 3 and the first chamber 1 (see Figure 3 ). The inlet of the return channel 7 may be arranged close to the bottom of the second compartment 2. The inlet of the return channel 7 may be particularly close to the first compartment 1. The outlet of the return channel 7 may be located below the first evaporator 4. The outlet of the return channel 7 is connected to the rear wall of the first inner tank 10 to help ensure that the gas flowing from the return channel 7 to the first evaporator 4 is fully heat exchanged with the first evaporator 4.

[0143] The return channel 7 may, for example, include an inlet section 71, an intermediate section 72, and an outlet section 73 that are connected in sequence, wherein the inlet section 71 leads to the second compartment 2, the outlet section 73 leads to the first compartment 1, and the intermediate section 72 is located between the inlet section 71 and the outlet section 73. The intermediate section 72 may extend in particular along the height direction H to facilitate the possible condensed water to flow out of the return channel 7. The inlet section 71 and the outlet section 73 may extend from the intermediate section 72 in opposite directions transversely to the intermediate section 72, so that the return channel 7 is formed into a Z shape. The gas flowing from the second compartment 2 to the first evaporator 4 via the return channel 7 has a higher temperature and humidity, and is thus easily condensed in the return channel 7. In order to connect the first compartment 1 to the second compartment 2 for guiding the gas in the second compartment 2 to flow to the first evaporator 4, the return channel 7 needs to span a larger distance. This configuration of the return channel 7 helps prevent condensed water from accumulating in the return channel 7 and reduces the storage space occupied by the return channel 7.

[0144] Optionally, the inlet section 71 and the outlet section 73 may be connected to the rear wall of the second inner liner 20 and the rear wall of the first inner liner 10, respectively. Thus, the return channel 7 may be prevented from occupying the space of the partition wall 8 between the third chamber 3 and the first chamber 1, thereby preventing the heat insulation effect between the first chamber 1 and the third chamber 3 from being reduced.

[0145] The bottom wall of the inlet section 71 may extend obliquely downwards in the direction of the first chamber 1. Alternatively or additionally, the bottom wall of the outlet section 73 may extend obliquely downwards in the direction of the first chamber 1. As a result, any condensed water that may occur can flow out of the return channel 7 in the direction of the gas flow.

[0146] In particular, the projections of the inlet section 71 and the middle section 72 along the depth direction D do not overlap with the projection of the first chamber 1 along the depth direction D. The return channel 7 can generally avoid the first chamber 1 where the first evaporator 4 is disposed, thereby helping to prevent condensation in the return channel 7 .

[0147] For example, the projection of the partition wall 8 between the third chamber 3 and the first chamber 1 along the depth direction D may overlap with the projection of the middle section 72 along the depth direction D. The middle section 72 may be at least partially located directly behind the partition wall 8. Thus, the storage space occupied by the return channel 7 may be reduced.

[0148] Figure 3 Schematically shows the Figure 1A Sectional view along section line CC.

[0149] like Figure 3 As shown, the first liner 10 and the third liner 30 are arranged side by side. The partition wall 8 between the third chamber 3 and the first chamber 1 extends between the first liner 10 and the third liner 30. The middle section 72 of the return channel 7 is partially located directly behind the partition wall 8, and partially located directly behind the third liner 30. The partition wall 8 can be formed by a heat-insulating material. The return channel 7 can be surrounded by a heat-insulating material. The heat-insulating material can be filled around the return channel 7 by foam molding, and can form a part of the heat-insulating box of the refrigeration appliance. For example, in the foam molding process, the first liner 10, the second liner 20, the third liner 30 and the shell of the refrigeration appliance can enclose the foaming cavity together. The return channel 7 can be located in the foaming cavity.

[0150] The rear wall of the third liner 30 may be provided with a step portion 301 extending in the height direction H, so that the inner recess 302 located inside the third liner 30 and the outer recess 303 located outside the third liner 30 are respectively formed on both sides of the step portion 301. The return channel 7 may be at least partially arranged in the outer recess 303. The second evaporator 5 may be at least partially arranged in the inner recess 302. This helps to reduce the space of the third compartment 3 occupied by the return channel 7. The return channel 7 and the second evaporator 5 may at least partially overlap in the projection along the width direction W, so that the depth dimension of the storage space of the third compartment 3 can be prevented from being reduced due to the return channel 7. This enables the third compartment 3 to have as large a storage space as possible.

[0151] Figure 4 The return channel 7 according to an exemplary embodiment of the present invention is schematically shown. The inlet section 71, the middle section 72 and the outlet section 73 of the return channel 7 can be formed as separate components, respectively, and can be connected to each other, for example, by plug-in connection. This split configuration is particularly conducive to realizing the Z-shaped structure of the return channel 7.

[0152] Figure 5 The connection structure between the inlet section 71 and the middle section 72 of the return channel 7 is schematically shown. For example, the inlet section 71 may be provided with a slot 741, and the middle section 72 may be provided with an insertion portion 751. The insertion portion 751 may be provided along the insertion direction (eg Figure 5The middle section 72 and the outlet section 73 of the return channel 7 can also be connected to each other in this way. This connection method can also be applied to other embodiments in which the return channel 7 includes multiple channel sections.

[0153] Similarly, the supply channel 6 can also be implemented in this manner. In other words, at least one of the supply channel 6 and the return channel 7 may include a first channel section 74 and a second channel section 75, wherein the first channel section 74 is provided with a slot 741, and the second channel section 75 is provided with an inserting portion 751, and the inserting portion 751 can be inserted into the slot 741 so as to connect the first channel section 74 to the second channel section 75.

[0154] Fig. 6A Schematically shows Figure 4 Here, the inlet section 71 and the middle section 72 of the return channel 7 are used as an example for explanation. The connection part between the inlet section 71 and the middle section 72 can be located in the foaming cavity.

[0155] like Fig. 6A As shown, the insertion portion 751 of the second channel segment 75 is inserted into the slot 741 of the first channel segment 74, so that the first channel segment 74 is connected to the second channel segment 75, wherein a closed cavity 742 closed by the insertion portion 751 is formed in the slot 741. The slot 741 has a slot opening that allows the insertion portion 751 to enter, and the insertion portion 751 can close the slot opening after being inserted into the slot 741. Fig. 6A In the illustrated embodiment, the insert 751 does not completely fill the space of the slot 741, so that a portion of free space is left in the slot 741 to form a closed cavity 742. With the help of the closed cavity 742, it is possible to prevent the heat insulating material from leaking into the return channel 7 during foaming. It should be understood that the closed cavity 742 is not completely airtightly sealed. In practice, a gap is inevitably left between the insert 751 and the groove wall of the slot 741. During foaming, the heat insulating material can flow from the foaming space outside the return channel 7 through the gap into the return channel 7. After entering the closed cavity 742, the heat insulating material will slow down and condense in the closed cavity 742. Thereby, the heat insulating material can be prevented from penetrating into the return channel 7.

[0156] The slot 741 may be particularly configured to circumferentially surround the inner channel of the second channel section 75. That is, the slot 741 may circumferentially surround the inner channel of the second channel section 75 within a complete circle. The insert portion 751 may be configured to circumferentially surround the inner channel of the first channel section 74. Thus, the heat insulating material may be prevented from entering the return channel 7 over the entire circumferential length.

[0157] The closed cavity 742 is not a narrow gap formed due to manufacturing tolerance, but a structure intentionally designed to prevent leakage of the heat insulating material. The volume of the closed cavity 742 is, for example, more than 20% of the volume of the slot 741. This helps to keep the heat insulating material in the closed cavity 742, rather than continuing to flow into the internal channels of the first channel section 74 and the second channel section 75.

[0158] like Fig. 6A As shown, the closed cavity 742 is located in front of the insertion part 751 in the insertion direction of the insertion part 751 (as shown by the arrow). On the possible leakage path, the closed cavity 742 may be separated from the internal channel and the foaming cavity of the return channel 7 by a longer path in the front and rear. For example, the closed cavity 742 is separated from the internal channel and the foaming cavity of the return channel 7 in the front and rear by a possible gap between the insertion part 751 and the groove wall of the slot 741. The gap (if any) is long and narrow. After the foaming liquid enters the closed cavity 742, the foaming liquid flows in the closed cavity 742 along the insertion direction to "try" to fill the closed cavity 742. Before the closed cavity 742 is filled with the foaming liquid, a small amount of foaming liquid may have entered the gap between the insertion part 751 and the groove wall of the slot 741 downstream of the closed cavity 742 and decelerated and solidified there, so that the gap downstream is blocked. As a result, leakage of the thermal insulation material can be further prevented. In addition, the closed cavity 742 can be formed by a simple structure and manufacturing process. Thus, leakage of the heat insulating material can be further prevented. The inserting portion 751 is spaced apart from the bottom of the slot 741. The closed cavity 742 can be formed by a simple structure and manufacturing process.

[0159] In the insertion direction, the distance between the insertion portion 751 and the bottom of the slot 741 may be greater than half the length of the portion of the insertion portion 751 extending into the slot 741 .

[0160] Figure 6B Schematically shows Fig. 6A FIG. 7 is a partial view of the first channel section 74 shown in FIG. Figure 6BAs shown, the first channel section 74 may be provided with a stopper 743 located on the groove wall of the slot 741. The stopper 743 may be configured to stop the insertion section 751 in the insertion direction of the insertion section 751 so that the insertion section 751 is spaced apart from the bottom of the slot 741, and the closed cavity 742 is formed between the insertion section 751 and the bottom of the slot 741. The stopper 743 is formed as a step, for example. This makes it easy to manufacture and assemble the first channel section 74 and the second channel section 75. For example, the first channel section 74 and the second channel section 75 can be manufactured by an injection molding process. The above structure can make it easy to demold the first channel section 74 and the second channel section 75 during the injection molding process. The stopper 743 may also be formed as a convex portion protruding from the groove wall of the slot 741. During the assembly process, the closed cavity 742 can be formed by inserting the insertion section 751 into the slot 741 until it is stopped by the stopper 743, without the need for additional operations and without increasing the complexity of the assembly process.

[0161] Fig. 7A , Figure 7B , Figure 7C and Fig.7D The closed cavity 742 formed in another embodiment is schematically shown, wherein the arrow shows the insertion direction of the insertion portion 751 into the insertion slot 741 .

[0162] like Fig. 7A As shown, the second channel section 75 may be provided with a protrusion 752 protruding transversely to the insertion direction. The protrusion 752 may protrude radially outward. The first channel section 74 may abut against the protrusion 752 to prevent the insertion portion 751 from moving along the insertion direction so that the insertion portion 751 is spaced apart from the bottom of the slot 741. The closed cavity 742 may be formed between the insertion portion 751 and the bottom of the slot 741. This also helps to simplify the manufacturing and assembly process of the first channel section 74 and the second channel section 75. The protrusion 752 also makes it possible to identify whether the first channel section 74 and the second channel section 75 are installed in place by visual inspection.

[0163] exist Figure 7BIn the exemplary embodiment shown, the slot 741 of the first channel section 74 may include a first slot portion 744 and a second slot portion 745 located in front of the first slot portion 744 along the insertion direction. The width of the first slot portion 744 may match the width of the insertion portion 751 to allow the insertion portion 751 to be inserted. The first slot portion 744 may, for example, provide a clamping force to clamp the insertion portion 751 to prevent the insertion portion 751 from escaping. The width of the second slot portion 745 may be less than the width of the insertion portion 751 to prevent the insertion portion 751 from being inserted. The second slot portion 745 may, for example, be formed to have a cross-section that narrows in a direction toward the bottom of the slot 741, such as a trapezoidal or triangular cross-section. It is also feasible that the first slot portion 744 and the second slot portion 745 have a step transition, such as Figure 6B shown.

[0164] Figure 7C and Fig.7D It is shown that the closed cavity 742 can be located on both sides or one side of the insertion part 751 in the insertion direction of the insertion part 751. For example, the slot 741 of the first channel section 74 may include a first slot portion 744 and a second slot portion 745 located in front of the first slot portion 744 along the insertion direction, wherein the width of the first slot portion 744 is less than the width of the second slot portion 745. The insertion part 751 of the second channel section 75 can be inserted into the first slot portion 744 and the second slot portion 745 until it contacts the bottom of the slot 741. The width of the first slot portion 744 can match the width of the insertion part 751, thereby allowing the insertion part 751 to be inserted. The first slot portion 744 can provide a clamping force for clamping the insertion part 751. The width of the second slot portion 745 can be greater than the width of the insertion part 751, so that the closed cavity 742 is formed in the second slot portion 745 on the inner side and / or outer side of the insertion part 751.

[0165] Although the return channel 7 is used as an example for explanation here, the structure described above for preventing the leakage of the heat insulating material by means of the closed cavity 742 can also be applied to other parts of the refrigeration appliance. For example, this structure can be applied to the pipeline components arranged in the foaming cavity such as the supply channel 6. Alternatively, this structure can also be applied to a plurality of shell parts connected to each other for at least partially delimiting the foaming cavity. For example, the door of the refrigeration appliance may include a first shell part and a second shell part, and the first shell part and the second shell part can be connected to each other by a plug-in structure. The plug-in structure can at least partially delimit the foaming cavity of the door. The plug-in structure may include an insertion portion and a slot formed on the first shell part and the second shell part respectively, so as to form a closed cavity closed by the insertion portion in the slot in an assembled state connected to each other.

[0166] Return to the following Figure 1A and Figure 2 .like Figure 1A and Figure 2 As shown, the supply channel 6 may be connected between the first inner liner 10 and the second inner liner 20 so as to supply the gas cooled by the first evaporator 4 to the second chamber 2 .

[0167] For example, the inlet of the supply channel 6 and the outlet of the supply channel 6 are opposite to each other and their projections along the width direction W overlap each other. In other words, the supply channel 6 extends substantially along the width direction W. The supply channel 6 may have a reduced length. The cooling gas does not need to change the flow direction in the supply channel 6. In particular, the inlet of the supply channel 6 may be open toward the direction of the first fan 12 so that the gas sucked by the first fan 12 can flow from the first fan 12 to the second chamber 2 via the supply channel 6 in a centrifugal direction relative to the first fan 12.

[0168] The inlet and outlet of the supply channel 6 may be located below the center of the second chamber 2. This means that the inlet of the supply channel 6 is located in the middle of the first chamber 1. The supply channel 6 may be arranged so that the outlet of the supply channel 6 is higher than the inlet of the supply channel 6. Thus, condensed water that may appear in the supply channel 6 can flow out from the inlet of the supply channel 6. The cooling gas may flow into the lower part of the second chamber 2 via the supply channel 6 at a slight upward inclination, and then flow upward.

[0169] Figure 8 Schematically shows Figure 2 A partial enlarged view of the circled part. Figure 8 As shown, the supply channel 6 may include, for example, a first supply section 61 and a second supply section 62. The first supply section 61 may be connected to the side of the first compartment 1 facing the second compartment 2. The second supply section 62 may be connected to the side of the second compartment 2 facing the first compartment 1. The first supply section 61 may extend upwardly obliquely in the direction from the first compartment 1 to the second compartment 2. The second supply section 62 may extend horizontally. With such a supply channel 6, the cooling gas can be stably and reliably guided from the first compartment to the second compartment. With the horizontally extending second supply section 62, it is convenient to achieve a sealed connection between the supply channel 6 and the first liner 10 to prevent leakage of the cooling gas. With the help of the first supply section 61, the condensed water that may occur can be guided from the supply channel 6 to the direction of the first compartment 1.

[0170] For example, the bottom wall of the first supply section 61 may be directly connected to the horizontally extending bottom wall of the second supply section 62. This facilitates the conduction of condensed water out of the supply channel 6 via the first supply section 61.

[0171] Fig. 9 The top view schematically shows Figure 8 As shown in the Fig. 9As shown, the first supply section 61 may extend backward obliquely in the direction from the first compartment 1 to the second compartment 2. The second supply section 62 may extend in the width direction W. The outlet of the supply channel 6 may be arranged close to the rear wall of the second liner 20. For example, the rear wall of the first liner 10 may be offset forward relative to the rear wall of the second liner 20, and the first compartment 1 may be separated from the external environment by a thicker insulation layer at the rear. By extending the first supply section 61 backward obliquely, it is ensured that the outlet of the supply channel 6 is arranged close to the rear wall of the second liner 20. At the same time, the second supply section 62 is still connected to the side wall of the second liner 20 in a substantially vertical manner, thereby facilitating a sealed connection.

[0172] Fig. 10A and Fig. 10B The supply channel 6 is schematically shown in section from the rear.

[0173] The bottom wall of the first supply section 61 may extend obliquely and be directly connected to the horizontally extending bottom wall of the second supply section 62. Condensate may be led out of the supply channel 6 via the first supply section 61, such as Fig. 10A and Fig. 10B As shown by the arrow from left to right in the figure.

[0174] Optionally, the top wall of the first supply section 61 may be connected to the horizontally extending top wall of the second supply section 62 via the upwardly extending connecting wall 621 of the second supply section 62. The second supply section 62 may be provided with an enlarged cross-sectional area compared to the first supply section 61. This helps the first supply section 61 to be connected to the second liner 20 in a sealed manner. For example, an insulating block made of an insulating material may be provided between the top wall of the second supply section 62 and the connecting wall 621.

[0175] The damper 9 of the refrigeration appliance can be arranged in the second supply section 62 to adjust the flow rate of the gas flowing from the first chamber 1 to the second chamber 2. As a result, the structure and installation process of the damper 9 can be simplified. By cooperating with the damper 9 arranged in the second supply section 62 and the first supply section 61, it is also possible to prevent the damper 9 from being frozen due to condensation. The damper 9 may include a rotatable baffle 91. Fig. 10A and Fig. 10B The damper 9 is schematically shown in a closed state and an open state, respectively. When the damper 9 is in a closed state, the baffle 91 can be arranged in parallel to the depth direction D and the height direction H in its closed position. The rotation axis L of the baffle 91 can extend along the height direction H. When the damper 9 is in a closed state, the baffle 91 can rotate around the rotation axis L to be approximately perpendicular to the depth direction D. Thereby, the installation space occupied by the damper 9 can be reduced. The damper 9 can also include a driving device for driving the baffle 91, and the driving device can be arranged, for example, next to the connecting wall 621.

[0176] Back again Figure 1A and Figure 2 The refrigeration appliance may also be provided with a second air duct 21 located in the second compartment 2. The second air duct 21 is configured to supply the gas flowing in through the supply channel 6 to the storage space of the second compartment 2 through at least one second air outlet 211. The refrigeration appliance may have a second air duct assembly 22 for forming the second air duct 21. Fig.11 The second air duct assembly 22 of the refrigeration appliance according to an exemplary embodiment of the present invention is schematically shown from the rear. The second air duct 21 may be formed in the second air duct assembly 22. The second air duct 21 may also be at least partially formed between the second air duct assembly 22 and the rear wall of the second liner 20.

[0177] The second air duct 21 may be configured to guide the gas to flow upward to the at least one second air outlet 211. The at least one second air outlet 211 may include, for example, a plurality of second air outlets 211 and all are located above the center of the second chamber 2. This helps to achieve a desired uniform operating temperature in the second chamber 2. Fig.11 As shown, the at least one second air outlet 211 may be disposed at both sides and the top of the second air duct assembly 22 , for example.

[0178] The second air duct 21 may have: a second main air duct 212 (at the Figure 2 The second main air duct 212 may have a first side 2121 and a second side 2122 extending in the height direction H opposite to each other, and the first side 2121 includes a slope section 2123 extending linearly and obliquely upward from the bottom of the second air duct 21 in a direction away from the first chamber 1. The second air inlet 213 may be configured so that the supply channel 6 can be connected to the second main air duct 212 at the second side 2122, and the second air inlet 213 is opposite to the slope section 2123 of the first side 2121. Figure 2 As shown, the second main air duct 212 may have a substantially trapezoidal, particularly a right-angled trapezoidal cross section in a plane perpendicular to the depth direction D. The second side 2122 forms the bottom of the trapezoid, and the slope section 2123 forms the waist of the trapezoid. The cooling gas entering the second air duct 21 may be guided by the slope section 2123 to flow upward. Thus, the space occupied by the second air duct 21 may be reduced, and in particular, the space occupied by the lower part of the second air duct 21 may be reduced.

[0179] The slope section 2123 may, for example, extend over more than half of the width dimension and / or height dimension of the second chamber 2. The angle at which the slope section 2123 is inclined upward may be, in particular, more than 45°. The bottom end of the slope section 2123 is offset in the direction of the first chamber 1 relative to the center of the second chamber 2 along the width direction W. For example, the bottom end of the slope section 2123 may be directly connected to the second air inlet 213. The top end of the slope section 2123 may be offset upward relative to the center of the second chamber 2. The second air outlet 211 may be arranged downstream of the slope section 2123. This configuration of the slope section 2123 helps guide the cooling gas and reduce the space occupied by the second air duct 21. In particular, the space occupied by the lower part of the second air duct 21 can be reduced.

[0180] exist Fig.11 The second air inlet 213 is schematically shown by a dotted line in FIG. The second air inlet 213 is arranged at the bottom end of the second side 2122 of the second main air duct 212. The bottom wall of the second air inlet 213 can extend downwardly from the outlet of the supply channel 6 to the second main air duct 212, and is connected to the bottom end of the slope section 2123. Thus, the bottom wall of the second air inlet 213 and the slope section 2123 form a roughly V-shaped structure. Condensed water that may appear can flow to the bottom of the V-shaped structure along the bottom wall of the second air inlet 213 and the slope section 2123. Here, the condensed water can be discharged through the drainage structure. The condensed water can also be blown dry by the high-speed flowing and dry cooling gas flowing in from the supply channel 6. The V-shaped structure can collect the condensed water at its bottom. Even if condensed water or ice temporarily accumulates here, it will not affect the flow of the cooling gas or the normal operation of the second chamber.

[0181] Fig.12 The second air duct assembly 22 of the refrigeration appliance according to the exemplary embodiment of the present invention is schematically shown in an exploded view.

[0182] like Fig.12As shown, the second air duct assembly 22 of the refrigeration appliance may include a first air duct portion 221 for forming a first section 2101 of the second air duct 21 and a second air duct portion 222 for forming a second section 2102 of the second air duct 21. The first air duct portion 221 and the second air duct portion 222 are formed as separate components connected to each other. The second section 2102 may be located downstream of the first section 2101. During assembly, the second air duct portion 222 may be installed to the second liner 20 after the first air duct portion 221 is installed to the second liner 20. The width dimension of the first air duct portion 221 may be particularly smaller than the width dimension of the second air duct portion 222. This is particularly conducive to the installation of the second air duct assembly 22. For example, the first air duct portion 221 may be installed to the second liner 20 along the width direction W. Here, "installing along the width direction" means installing by means of relative displacement along the width direction. The smaller width dimension helps to align the first air duct portion 221 with the installation opening on the side wall of the second inner liner 20 and the outlet of the supply channel 6 during the installation process, and to achieve a stable and reliable sealed connection. The second air duct portion 222 can be installed to the compartment in a direction perpendicular to the width direction W. For example, the second air duct portion 222 can be installed to the second inner liner 20 backward in the depth direction D and connected to the first air duct portion 221.

[0183] exist Fig.12 The first air duct portion 221 is rotated at a certain angle to show the front part of the first air duct portion 221. The inlet of the first air duct portion 221 can be opened along the width direction W and connected to the supply channel 6, and the outlet of the first air duct portion 221 can be opened along the height direction H and connected to the inlet of the second air duct portion 222 (refer to Fig.11 ). The cooling gas changes its flow direction in the first air duct portion 221 .

[0184] Next, back to Figure 1A and Figure 1C . In an exemplary embodiment according to the present invention, the storage space of the second chamber 2 may include a first storage space 23 and a second storage space 24 located below the first storage space 23. The second storage space 24 may be set to have an operating temperature higher than the operating temperature of the first storage space 23. For example, the second chamber 2 implemented as a refrigerating chamber may be provided with a relatively independent first storage space 23 and a second storage space 24, and the operating temperatures of the first storage space 23 and the second storage space 24 may be independently set to be different from each other. For example, the first storage space 23 may be implemented as a conventional refrigerating space, and the second storage space 24 may be implemented as a storage space dedicated to specific items. In this way, the functions of the refrigerating appliance can be made more diversified.

[0185] The second storage space 24 may be provided with a second fan 242 for sucking the gas in the first storage space 23 into the second storage space 24. The second fan 242 may be disposed at the rear of the second storage space 24.

[0186] Fig.13 The second air duct assembly 22 of the refrigeration appliance according to an exemplary embodiment of the present invention is schematically shown from the front. Fig.13 As shown, the second air duct assembly 22 may be provided with a receiving recess 223 located below the slope section 2123 and located on a side of the slope section 2123 away from the first chamber 1. The second fan 242 located outside the second air duct 21 may be at least partially located in the receiving recess 223. With the aid of the slope section 2123, the second air duct assembly 22 may allow space below the slope section 2123 for arranging the second fan 242, so that the second storage space 24 can have a larger volume.

[0187] Fig.14 A cross-sectional view of the second compartment 2 of the refrigeration appliance according to an exemplary embodiment of the present invention is schematically shown from a top view.

[0188] like Fig.14 As shown, the second compartment 2 may be provided with a storage box body 241 for separating the second storage space 24 from the first storage space 23. The storage box body 241 may be partially located in the receiving recess 223 of the second air duct assembly 22. The second air duct assembly 22 may also allow space below the slope section 2123 to accommodate a portion of the storage box body 241.

[0189] The storage box body 241 surrounds the second storage space 24 in a thermally insulating manner, for example, so that the second storage space 24 and the first storage space 23 can have independently settable temperatures. The storage box body 241 may include a thermally insulating wall made of a thermally insulating material, which surrounds the second storage space 24 in a thermally insulating manner. The storage box body 241 may be detachably arranged in the second chamber 2.

[0190] The at least one second air outlet 211 of the second air duct 21 may be arranged to be higher than the storage box body 241. This helps to achieve different operating temperatures of the first storage space 23 and the second storage space 24 in an energy-saving manner. The second air duct 21 directly supplies cooling air to the first storage space 23 via the second air outlet 211. The cooling air of the first storage space 23 may flow into the second storage space 24, for example, as needed, so as to adjust the temperature in the second storage space 24.

[0191] like Fig.14As shown, the storage box body 241 may be provided with a communication inlet 2411 and / or a communication outlet 2412 for fluidly connecting the second storage space 24 with the first storage space 23. The second storage space 24 may be connected to the first storage space 23 through the communication inlet 2411 and / or the communication outlet 2412, so that the second storage space 24 and the first storage space 23 are cooled by the cooling gas flowing out through the second air outlet 211. The gas may enter the second storage space 24 from the first storage space 23 through the communication inlet 2411. The communication inlet 2411 and the at least one second air outlet 211 may be staggered in the height direction H and the width direction W, so as to facilitate accurate adjustment of the temperature in the second storage space 24. The gas in the second storage space 24 may leave through the communication outlet 2412, and then may flow to the first evaporator 4 through the return channel 7.

[0192] The second fan 242 may be arranged in the storage box body 241 adjacent to the communication inlet 2411, for example. The second storage space 24 may also be provided with a blocking member 2413 for blocking the gas flow between the second storage space 24 and the first storage space 23, for example. The blocking member 2413 may be arranged to be able to move from a closed position blocking the gas flow between the second storage space 24 and the first storage space 23 to an open position allowing the gas flow between the second storage space 24 and the first storage space 23 under the action of the gas pressure applied by the second fan 242. The blocking member 2413 may be implemented as a rotatable baffle 91, for example. In the closed position, the baffle 91 may close the communication inlet 2411; in the open position, the communication inlet 2411 may open the communication inlet 2411. When it is necessary to reduce the temperature in the second storage space 24, the second fan 242 may be started so that the blocking member 2413 moves to the open position, so that the cooling gas can enter the second storage space 24 from the first storage space 23 via the open communication inlet 2411. When the second fan 242 is turned off, the blocking member 2413 also returns to the closed position accordingly, thereby closing the communication inlet 2411. Optionally, when the second fan 242 is turned off, the blocking member 2413 may return to the closed position under the action of gravity or with the help of the elastic force applied by the spring. The blocking member 2413 may be opened or closed according to the working state of the second fan 242, without the need to additionally provide a driving mechanism for the blocking member 2413, and without the need to take additional measures to control the blocking member 2413.

[0193] In an exemplary embodiment according to the present invention, it is also feasible to omit the blocking member 2413. Although the first storage space 23 and the second storage space 24 are fluidically connected to each other through the communication inlet 2411 and / or the communication outlet 2412, in the absence of a specific driving force, for example, when the second fan 242 is not working, there may be almost no or only a small amount of gas exchange between the first storage space 23 and the second storage space 24. Only when the second fan 242 is started, the gas in the first storage space 23 will be sucked into the second storage space 24.

[0194] The rear wall of the storage box body 241 may have a first rear wall section 2414 close to the first compartment 1 and a second rear wall section 2415 away from the first compartment 1. The first rear wall section 2414 may be offset forward relative to the second rear wall section 2415 so as to form a rear wall recess 2416 behind the first rear wall section 2414. The second air duct 21 may be partially located at the rear wall recess 2416. Thus, the structure of the refrigeration appliance may be made more compact and a larger storage space may be provided. Fig.13 It can be seen that the second rear wall section 2415 can be located in the accommodating recess 223 below the slope section 2123. With the help of the slope section 2123, the second air duct assembly 22 and the storage box body 241 can be arranged more compactly.

[0195] The communication inlet 2411 can be arranged in particular at the second rear wall section 2415. This is conducive to accurately adjusting the temperature in the second storage space 24. Fig.13 and Fig.14 , the second rear wall section 2415 is located in the accommodating recess 223 of the second air duct assembly 22, so that the path of the cooling gas flowing from the first storage space 23 to the second storage space 24 is tortuous in the direction from top to bottom along the height direction H. Therefore, in the absence of a specific driving force, there may be almost no gas exchange or only a small amount of gas exchange between the first storage space 23 and the second storage space 24.

[0196] Alternatively or additionally, the second fan 242 may be arranged at the second rear wall section 2415. In front of the second fan 242 and the first rear wall section 2414, a regular space may be reserved for accommodating items to be cooled. For example, a container such as a drawer that can be withdrawn along the depth direction D may be arranged in front of the second fan 242 and the first rear wall section 2414.

[0197] The projections of the outlet of the storage box body 241 and the supply channel 6 along the width direction W may at least partially overlap. The second air duct assembly 22 and the storage box body 241 may be arranged more compactly, thereby facilitating the provision of a larger storage space. The connection structure between the second air duct assembly 22 and the second liner 20 and the supply channel 6 may be shielded by the storage box body 241.

[0198] Combination Figure 1A and Figure 1C It can be seen that the entrance of the return channel 7 can be located directly behind the first rear wall section 2414. The storage housing can shield the entrance of the return channel 7 from the front. A certain free space can be left between the first rear wall section 2414 and the entrance of the return channel 7. The offset arrangement of the first rear wall section 2414 and the second rear wall section 2415 helps to prevent a straight path from existing between the entrance of the return channel 7 and the communication entrance 2411.

[0199] Fig.15 A partial cross-sectional view of the second compartment 2 of the refrigeration appliance according to an exemplary embodiment of the present invention is schematically shown.

[0200] The communication inlet 2411 and / or the communication outlet 2412 may be configured as a serpentine channel located in the housing wall of the storage box body 241. Fig.15 As shown by the arrows in , the serpentine channel has a bending angle of at least 180°, in particular at least 270° and / or has at least 2, in particular at least 3 bending portions of more than 90°. When the second fan 242 is not working, such a communication inlet 2411 and / or a communication outlet 2412 may hinder the gas exchange between the first storage space 23 and the second storage space 24. When the second fan 242 is started, the gas may flow between the first storage space 23 and the second storage space 24 via the communication inlet 2411 and / or the communication outlet 2412.

[0201] Although specific embodiments have been described above, these embodiments are not intended to limit the scope of the present disclosure, even when only a single embodiment is described with respect to specific features. The feature examples provided in the present disclosure are intended to be illustrative, not restrictive, unless otherwise stated. In specific implementations, multiple features may be combined with each other, depending on actual needs, where technically feasible. In particular, the features in different embodiments may also be combined with each other. Various replacements, changes, and modifications may also be conceived without departing from the spirit and scope of the present application.

Claims

1. A refrigeration appliance comprising a first chamber (1), a second chamber (2) and a third chamber (3) which are separated from each other in a heat-insulating manner, wherein: The second chamber (2) and the third chamber (3) are arranged side by side with the first chamber (1) along the width direction, and the second chamber (2) is located above the third chamber (3). The refrigeration appliance is further provided with: a first evaporator (4) for cooling the first chamber (1) and the second chamber (2), which is arranged in the first chamber (1); a second evaporator (5) for cooling the third chamber (3); a supply passage (6) connecting the first chamber (1) to the second chamber (2) for supplying the gas cooled by the first evaporator (4) to the second chamber (2); and A return channel (7) connects the first chamber (1) to the second chamber (2) so as to guide the gas in the second chamber (2) to flow to the first evaporator (4).

2. The refrigeration appliance according to claim 1, wherein: The return channel (7) is at least partially located directly behind the third chamber (3).

3. The refrigeration appliance according to claim 1 or 2, wherein: The refrigeration appliance comprises a third inner container (30) for defining a third chamber (3), the rear wall of the third inner container (30) being provided with a step portion (301) extending in a height direction, so that an inner recess (302) located inside the third inner container (30) and an outer recess (303) located outside the third inner container (30) are respectively formed on both sides of the step portion (301), wherein: The return channel (7) is at least partially arranged in the outer recess (303), and the second evaporator (5) is at least partially arranged in the inner recess (302); and / or The projections of the return channel (7) and the second evaporator (5) in the width direction at least partially overlap.

4. The refrigeration appliance according to any one of claims 1 to 3, wherein: The return channel (7) comprises an inlet section (71), a middle section (72) and an outlet section (73) which are connected in sequence, wherein the inlet section (71) leads to the second chamber (2), the outlet section (73) leads to the first chamber (1), and the middle section (72) is located between the inlet section (71) and the outlet section (73), wherein: The middle section (72) extends in a height direction; and / or The inlet section (71) and the outlet section (73) extend from the middle section (72) in opposite directions transversely to the middle section (72), so that the return channel (7) is formed into a Z shape.

5. The refrigeration appliance according to claim 4, wherein: The inlet section (71) and the outlet section (73) are respectively connected to the rear wall of the second inner container (20) for defining the second chamber (2) and the rear wall of the first inner container (10) for defining the first chamber (1); and / or The projections of the entrance section (71) and the middle section (72) along the depth direction do not overlap with the projection of the first chamber (1) along the depth direction; and / or The projection of the partition wall (8) between the third chamber (3) and the first chamber (1) along the depth direction overlaps with the projection of the middle section (72) along the depth direction.

6. The refrigeration appliance according to claim 4 or 5, wherein: The bottom wall of the inlet section (71) extends obliquely downwards towards the first chamber (1); and / or The bottom wall of the outlet section (73) extends in a downwardly inclined manner toward the first chamber (1).

7. The refrigeration appliance according to any one of claims 1 to 6, wherein: At least one of the supply channel (6) and the return channel (7) includes a first channel section (74) and a second channel section (75), wherein the first channel section (74) is provided with a slot (741), and the second channel section (75) is provided with an insertion portion (751), wherein the insertion portion (751) is inserted into the slot (741) so as to connect the first channel section (74) to the second channel section (75), wherein a closed cavity (742) closed by the insertion portion (751) is formed in the slot (741).

8. The refrigeration appliance according to claim 7, wherein: The slot (741) is configured to circumferentially surround the internal channel of the second channel section (75); and / or The insert portion (751) is configured to circumferentially surround the inner channel of the first channel section (74).

9. The refrigeration appliance according to claim 7 or 8, wherein: The closed cavity (742) is located in front of the insertion portion (751) in the insertion direction of the insertion portion (751); and / or The volume of the closed cavity (742) is more than 20% of the volume of the slot (741).

10. The refrigeration appliance according to any one of claims 7 to 9, wherein: The first channel section (74) is provided with a stopper (743) located on the groove wall of the insertion slot (741), and the stopper (743) is configured to stop the insertion portion (751) in the insertion direction of the insertion portion (751) so that the insertion portion (751) is spaced apart from the bottom of the insertion slot (741), and a closed cavity (742) is formed between the insertion portion (751) and the bottom of the insertion slot (741); and / or The second channel section (75) is provided with a protrusion (752) protruding transversely to the insertion direction, and the first channel section (74) abuts against the protrusion (752) to prevent the insertion part (751) from moving along the insertion direction so that the insertion part (751) is spaced apart relative to the bottom of the slot (741), and a closed cavity (742) is formed between the insertion part (751) and the bottom of the slot (741).

11. The refrigeration appliance according to any one of claims 7 to 9, wherein: The slot (741) includes a first slot portion (744) and a second slot portion (745) located in front of the first slot portion (744) along the insertion direction, wherein the width of the first slot portion (744) matches the width of the insertion portion (751) to allow the insertion portion (751) to be inserted, and the width of the second slot portion (745) is smaller than the width of the insertion portion (751) to prevent the insertion portion (751) from being inserted.

12. The refrigeration appliance according to any one of claims 1 to 11, wherein: The first compartment (1) comprises a freezer compartment; and / or The second compartment (2) comprises a cold storage compartment; and / or The third chamber (3) comprises a temperature-changing chamber or an ice chamber.

13. The refrigeration appliance according to any one of claims 1 to 12, wherein: The third chamber (3) has a higher temperature control accuracy than the first chamber (1) and the second chamber (2); and / or The working temperature of the third chamber (3) is higher than the working temperature of the first chamber (1) and lower than the working temperature of the second chamber (2).

14. The refrigeration appliance according to any one of claims 1 to 13, wherein: The inlet and outlet of the supply channel (6) are located below the center of the second chamber (2); and / or The supply channel (6) is arranged such that the outlet of the supply channel (6) is higher than the inlet of the supply channel (6); and / or The inlet of the supply channel (6) and the outlet of the supply channel (6) are opposite to each other and their projections in the width direction overlap with each other.

15. The refrigeration appliance according to any one of claims 1 to 14, wherein: The supply channel (6) comprises a first supply section (61) and a second supply section (62), wherein the first supply section (61) is connected to a side of the first chamber (1) facing the second chamber (2), and the second supply section (62) is connected to a side of the second chamber (2) facing the first chamber (1), wherein the first supply section (61) extends upwardly obliquely in a direction from the first chamber (1) to the second chamber (2), and the second supply section (62) extends horizontally.

16. The refrigeration appliance according to claim 15, wherein: The first supply section (61) extends obliquely backwards in a direction from the first chamber (1) to the second chamber (2); and / or The refrigeration appliance is provided with a damper (9) for adjusting the flow rate of gas flowing from the first chamber (1) into the second chamber (2), and the damper (9) is arranged in the second supply section (62).

17. The refrigeration appliance according to claim 15 or 16, wherein: The top wall of the first supply section (61) is connected to the horizontally extending top wall of the second supply section (62) via an upwardly extending connecting wall (621) of the second supply section (62); and / or The bottom wall of the first supply section (61) is directly connected to the horizontally extending bottom wall of the second supply section (62).

18. The refrigeration appliance according to any one of claims 1 to 17, wherein: The refrigeration appliance is equipped with: a first air duct (11) located in the first chamber (1), configured to supply the gas cooled by the first evaporator (4) to the storage space of the first chamber (1) through at least one first air outlet; and A first fan (12) is arranged in the first air duct (11) and is used to suck the gas cooled by the first evaporator (4).

19. The refrigeration appliance according to claim 18, wherein: The first fan (12) is located below the center of the second chamber (2); and / or The inlet of the supply channel (6) is open toward the first fan (12) so that the gas sucked by the first fan (12) can flow into the supply channel (6) through the inlet of the supply channel (6) in a centrifugal direction relative to the first fan (12).

20. The refrigeration appliance according to claim 18 or 19, wherein: The refrigeration appliance is provided with a first air duct cover (13) for separating the first air duct (11) from the storage space of the first chamber (1), the first air duct cover (13) being bent backward above the first fan (12); and / or The first air duct (11) has a narrowing section which narrows backwards above the first fan (12).

21. The refrigeration appliance according to any one of claims 1 to 15 and 17 to 20, wherein: The refrigeration appliance is provided with a damper (9) for adjusting the flow rate of gas flowing from the first chamber (1) into the second chamber (2), wherein: The damper (9) is arranged in the supply channel (6); and / or The damper (9) is arranged between a first inner liner (10) for defining a first chamber (1) and a second inner liner (20) for defining a second chamber (2).

22. The refrigeration appliance according to claim 21, wherein: The damper (9) comprises a rotatable baffle (91), wherein: The baffle (91) is arranged parallel to the depth direction and the height direction in its closed position; and / or The rotation axis of the baffle (91) extends in the height direction.

23. The refrigeration appliance according to any one of claims 1 to 22, wherein: The refrigeration appliance is provided with a second air duct (21) located in the second chamber (2), wherein the second air duct (21) is configured to supply gas flowing in through the supply channel (6) to the storage space of the second chamber (2) through at least one second air outlet (211), wherein: The second air duct (21) is configured to guide the gas to flow upward to the at least one second air outlet (211); and / or The at least one second air outlet (211) comprises a plurality of second air outlets (211) and all are located above the center of the second chamber (2).

24. The refrigeration appliance according to claim 23, wherein: The second air duct (21) has: a second main air duct (212) for guiding the gas to flow upward, the second main air duct (212) comprising a first side edge (2121) and a second side edge (2122) extending in a height direction opposite to each other, the first side edge (2121) comprising a slope section (2123) extending linearly and obliquely upward from the bottom of the second air duct (21) in a direction away from the first chamber (1); The second air inlet (213) is configured to enable the supply channel (6) to be connected to the second main air duct (212) at the second side (2122), and the second air inlet (213) is opposite to the slope section (2123) of the first side (2121).

25. The refrigeration appliance according to claim 23 or 24, wherein: The bottom wall of the second air inlet (213) extends from the outlet of the supply channel (6) downwardly and obliquely toward the second main air duct (212), and is connected to the bottom end of the slope section (2123).

26. The refrigeration appliance according to claim 23 or 24, wherein: The ramp section (2123) extends over more than half of the width dimension and / or height dimension of the second chamber (2); and / or The slope section (2123) is inclined upward at an angle of more than 45°; and / or The bottom end of the slope section (2123) is offset in the width direction relative to the center of the second chamber (2) toward the first chamber (1); and / or The top end of the ramp section (2123) is offset upward relative to the center of the second chamber (2).

27. The refrigeration appliance according to any one of claims 23 to 26, wherein: The refrigeration appliance is equipped with: A second air duct assembly (22) for forming a second air duct (21), the second air duct assembly (22) being provided with a receiving recess (223) located below the slope section (2123) and located on a side of the slope section (2123) away from the first chamber (1); and A second fan (242) or a storage box body (241) is located outside the second air duct (21); the second fan (242) or the storage box body (241) is at least partially located in the accommodating recess (223).

28. The refrigeration appliance according to any one of claims 23 to 26, wherein: The refrigeration appliance is provided with a second air duct assembly (22) for forming a second air duct (21), the second air duct assembly (22) comprising a first air duct portion (221) for forming a first section (2101) of the second air duct (21) and a second air duct portion (222) for forming a second section (2102) of the second air duct (21), the first air duct portion (221) and the second air duct portion (222) being formed as separate components connected to each other, wherein: The width dimension of the first air duct portion (221) is smaller than the width dimension of the second air duct portion (222); and / or The inlet of the first duct portion (221) is open in the width direction and connected to the supply passage (6), and the outlet of the first duct portion (221) is open in the height direction and connected to the inlet of the second duct portion (222).

29. The refrigeration appliance according to any one of claims 1 to 28, wherein: The storage space of the second chamber (2) includes a first storage space (23) and a second storage space (24) located below the first storage space (23), wherein the second storage space (24) can be set to have an operating temperature higher than the operating temperature of the first storage space (23).

30. The refrigeration appliance according to claim 29, wherein: The second chamber (2) is provided with a storage box body (241) for separating the second storage space (24) from the first storage space (23), wherein: The storage box body (241) surrounds the second storage space (24) in a thermally insulating manner; The storage box body (241) is detachably arranged in the second chamber (2); and / or The storage box body (241) is provided with a communication inlet (2411) and / or a communication outlet (2412) for fluidly connecting the second storage space (24) and the first storage space (23).

31. The refrigeration appliance according to claim 30, wherein: The communication inlet (2411) and / or the communication outlet (2412) are configured as a serpentine channel located in the shell wall of the storage box body (241), wherein the serpentine channel has a bending angle of at least 180° and / or has at least two bending portions of more than 90°; and / or The second storage space (24) is provided with a second fan (242) for sucking the gas in the first storage space (23) into the second storage space (24).

32. The refrigeration appliance according to claim 31, wherein: The second storage space (24) is provided with a blocking member (2413) for blocking the flow of gas between the second storage space (24) and the first storage space (23), and the blocking member (2413) is configured to be able to move from a closed position blocking the flow of gas between the second storage space (24) and the first storage space (23) to an open position allowing the flow of gas between the second storage space (24) and the first storage space (23) under the action of gas pressure applied by the second fan (242).

33. The refrigeration appliance according to claim 31 or 32, wherein: The rear wall of the storage box body (241) comprises a first rear wall section (2414) close to the first chamber (1) and a second rear wall section (2415) away from the first chamber (1); the first rear wall section (2414) is offset forward relative to the second rear wall section (2415) so as to form a rear wall recess (2416) behind the first rear wall section (2414); a connecting inlet (2411) for fluidly connecting the second storage space (24) with the first storage space (23) and / or a second fan (242) for sucking gas in the first storage space (23) into the second storage space (24) are arranged at the second rear wall section (2415).

34. The refrigeration appliance according to claim 33, wherein: The entrance of the return channel (7) is located directly behind the first rear wall section (2414).

35. The refrigeration appliance according to claim 33, wherein: The refrigeration appliance is provided with a second air duct (21) located in the second chamber (2), the second air duct (21) being configured to supply gas flowing in through the supply channel (6) to the storage space of the second chamber (2) through at least one second air outlet (211), and the second air duct (21) is partially located at the rear wall recess (2416).

36. The refrigeration appliance according to any one of claims 30 to 34, wherein: The refrigeration appliance is provided with a second air duct (21) located in the second chamber (2), wherein the second air duct (21) is configured to supply gas flowing in through the supply channel (6) to the storage space of the second chamber (2) through at least one second air outlet (211), wherein: The communication inlet (2411) and the at least one second air outlet (211) are arranged staggered in the height direction and the width direction; and / or The at least one second air outlet (211) is arranged to be higher than the storage box body (241); and / or Projections of the storage box body (241) and the outlet of the supply channel (6) along the width direction at least partially overlap.

Images