Cabinet device and refrigerator

Abstract

The utility model discloses a kind of box equipment and refrigerator, box equipment includes box body, air duct component, first return air passage and second return air passage, along the height direction of box body, box body is spaced apart and is provided with refrigeration cavity, freezing cavity and refrigeration cavity.Cooling cavity, freezing cavity and refrigeration cavity are communicated with air duct component respectively, to make refrigeration cavity can provide cold air to freezing cavity and refrigeration cavity.The first return air passage is connected between refrigeration cavity and refrigeration cavity, and refrigeration cavity is communicated with refrigeration cavity by the first return air passage.The second return air passage is connected between freezing cavity and refrigeration cavity, and freezing cavity is communicated with refrigeration cavity by the second return air passage.The production manufacturing cost of the box equipment and refrigerator is lower, and the phenomenon of ice formation in refrigerator can be avoided or reduced.

Description

Technical Field

[0001] This disclosure relates to the field of household appliance technology, and in particular to a cabinet device and a refrigerator. Background Technology

[0002] With the development of society and economy and the improvement of people's living standards, refrigerators and freezers have become indispensable household appliances in people's daily lives. In order to meet people's needs, refrigerators need to meet the needs of both refrigeration and freezing of food. Therefore, the interior of the refrigerator is usually divided into independent refrigeration and freezing compartments.

[0003] In related technologies, using multiple refrigeration systems to cool the refrigerator compartment and freezer compartment separately is costly. Using a single refrigeration system to cool the refrigerator compartment and freezer compartment can easily cause ice to form inside the refrigerator. Utility Model Content

[0004] In view of this, the present disclosure provides a cabinet device and a refrigerator, which have low manufacturing costs and can avoid or reduce the phenomenon of ice formation inside the refrigerator.

[0005] Specifically, this disclosure is achieved through the following technical solution.

[0006] According to a first aspect of the present disclosure, a cabinet device is provided, comprising a cabinet body, an air duct assembly, a first return air duct, and a second return air duct. Along the height direction of the cabinet body, a cooling chamber, a freezing chamber, and a refrigeration chamber are spaced apart. The air duct assembly is respectively connected to the cooling chamber, the freezing chamber, and the refrigeration chamber, enabling the cooling chamber to supply cold air to the freezing chamber and the refrigeration chamber. The first return air duct connects the refrigeration chamber and the cooling chamber, with the refrigeration chamber communicating with the cooling chamber through the first return air duct. The second return air duct connects the freezing chamber and the cooling chamber, with the freezing chamber communicating with the cooling chamber through the second return air duct.

[0007] The technical solutions provided by the embodiments of this disclosure may include the following beneficial effects:

[0008] When this cabinet is in use, the ice-making chamber generates cold air. A duct system connects to the cooling chamber, freezing chamber, and refrigerator chamber, allowing the cold air generated in the cooling chamber to be transferred to these chambers, providing a low-temperature environment beneficial for food preservation. Furthermore, the cooling, freezing, and refrigerator chambers are spaced apart along the height of the cabinet body, facilitating cold air distribution. A first return air duct connects the refrigerator chamber and the cooling chamber, allowing the refrigerator chamber to connect to the cooling chamber via this duct. When gas in the refrigerator chamber recirculates, the gas flows directly back to the cooling chamber through the first return air duct, preventing contact between the cold air at different temperatures in the refrigerator and freezing chambers during recirculation and thus avoiding icing. A second return air duct connects the freezing chamber and the cooling chamber, allowing the freezing chamber to connect to the cooling chamber via this duct. When the gas in the freezer compartment undergoes recirculation, it can flow directly back to the refrigeration compartment through the second recirculation duct. This prevents the cold air in the freezer and refrigerator compartments from coming into contact with each other at different temperatures during the recirculation process, thus avoiding icing. The use of an air duct assembly allows the refrigeration compartment to supply cold air to both the freezer and refrigerator compartments separately, which helps reduce the manufacturing cost of the refrigerator. The dual recirculation duct structure effectively reduces or eliminates the possibility of ice buildup inside the refrigerator, improving the user experience.

[0009] The technical solution disclosed herein will be further explained below.

[0010] In one embodiment, the enclosure further includes a separator, and the first return air duct includes a first return air inlet disposed in the refrigeration chamber. The second return air duct includes a second return air inlet disposed in the refrigeration chamber, and the separator is disposed between the second return air inlet and the first return air inlet to separate the second return air inlet from the first return air inlet.

[0011] In one embodiment, an air duct assembly is disposed on the housing body. The air duct assembly includes a partition, which is disposed on the air duct assembly to form a first air duct and a second air duct that are isolated from each other. The freezer chamber is connected to the refrigeration chamber through the first air duct. The refrigerator chamber is connected to the freezer chamber through the second air duct.

[0012] In one embodiment, the first air duct includes a first air inlet and a first air outlet that are interconnected. The first air inlet is connected to the cooling chamber, and the first air outlet is connected to the freezing chamber.

[0013] In one embodiment, the second air duct includes a second air inlet and a second air outlet that are interconnected. The second air inlet is connected to the cooling chamber, and the second air outlet is connected to the refrigeration chamber.

[0014] In one embodiment, the air duct assembly further includes a first airflow generating element disposed within the second air duct to draw cold air from the freezing chamber to the refrigeration chamber.

[0015] In one embodiment, the cooling chamber is provided with an evaporator and a second airflow generator, which can draw cold air from the cooling chamber into the first air duct.

[0016] In one embodiment, the enclosure device further includes an automatic damper disposed in the second air duct to open or close the second air duct.

[0017] In one embodiment, the refrigeration chamber, the freezing chamber, and the refrigeration chamber are arranged sequentially at intervals along the height direction of the box body, and the refrigeration chamber is located at the top of the box body.

[0018] According to a second aspect of the present disclosure, a refrigerator is provided, the refrigerator including a door and a cabinet body device as described in any of the above embodiments. The door is movably connected to the cabinet body to open or close the freezer compartment and / or the refrigerator compartment.

[0019] The technical solutions provided by the embodiments of this disclosure may include the following beneficial effects:

[0020] The refrigerator uses the cabinet device in any of the above embodiments, which has a low manufacturing cost and can avoid or reduce the phenomenon of ice formation inside the refrigerator, thus improving the user experience of the refrigerator.

[0021] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this disclosure. Attached Figure Description

[0022] The accompanying drawings, which form part of this disclosure, are used to provide a further understanding of this disclosure. The illustrative embodiments of this disclosure and their descriptions are used to explain this disclosure and do not constitute an undue limitation of this disclosure.

[0023] To more clearly illustrate the technical solutions in the embodiments of this disclosure, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the structure of a refrigerator according to one embodiment.

[0025] Figure 2 for Figure 1 The diagram shown illustrates the refrigeration principle of a refrigerator.

[0026] Figure 3 for Figure 1 The diagram shows a front view of the refrigerator.

[0027] Figure 4 for Figure 3 The diagram shows a cross-sectional view of the refrigerator.

[0028] Figure 5 for Figure 4 The diagram shows a partially enlarged structural schematic of the refrigerator.

[0029] Figure 6 for Figure 4 The diagram shows a partially enlarged structural schematic of the refrigerator.

[0030] Figure 7 for Figure 1 The diagram shows a side view of the refrigerator.

[0031] Figure 8 for Figure 7 The diagram shows a cross-sectional view of the refrigerator.

[0032] Figure 9 for Figure 8 The diagram shows a partially enlarged structural schematic of the refrigerator.

[0033] Explanation of reference numerals in the attached figures:

[0034] 10. Refrigerator; 100. Cabinet Equipment; 110. Cabinet Body; 111. Refrigeration Chamber; 112. Freezing Chamber; 113. Refrigeration Chamber; 120. Refrigeration Module; 121. Compressor; 122. Condenser; 123. Evaporator; 124. Throttling Device; 130. Air Duct Assembly; 131. Partition; 132. First Air Duct; 1321. First Air Inlet; 1322. First Air Outlet; 133. Second Air Duct; 1331. Second Air Inlet; 1332. Second Air Outlet; 134. First Airflow Generator; 140. First Return Air Channel; 141. First Return Air Inlet; 150. Second Airflow Generator; 160. Second Return Air Channel; 161. Second Return Air Inlet; 170. Divider; 180. Automatic Air Damper; 200. Cabinet Door. Detailed Implementation

[0035] The technical solutions in the embodiments (or "implementations") of this disclosure will be clearly and completely described herein with reference to the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements.

[0036] If this disclosure uses terms relating to directional indications or positional relationships (e.g., up, down, left, right, front, back, inside, outside, top, bottom, center, vertical, horizontal, longitudinal, transverse, length, height, counterclockwise, clockwise, axial, radial, circumferential, etc.), such terms are only used to explain the relative positional relationships and movements between components in a specific posture (as shown in the accompanying drawings); if the specific posture changes, the directional indications or positional relationships will also change accordingly. Furthermore, terms such as "first" and "second" in this disclosure are used only for descriptive convenience and should not be construed as indicating or implying relative importance.

[0037] With the development of society and economy and the improvement of people's living standards, refrigerators and freezers have become indispensable household appliances in people's daily lives. In order to meet people's needs, refrigerators need to meet the needs of both refrigeration and freezing of food. Therefore, the interior of the refrigerator is usually divided into independent refrigeration and freezing compartments.

[0038] In related technologies, using multiple refrigeration systems to cool the refrigerator compartment and freezer compartment separately is costly. Using a single refrigeration system to cool the refrigerator compartment and freezer compartment can easily cause ice to form inside the refrigerator.

[0039] Therefore, it is necessary to provide a cabinet device and a refrigerator that have low manufacturing costs and can avoid or reduce the phenomenon of ice formation inside the refrigerator.

[0040] To better understand the enclosure device of this disclosure, a refrigerator in which the enclosure device is applied is used as an example.

[0041] like Figures 1 to 4 As shown, a refrigerator 10 is provided. The refrigerator 10 includes a cabinet device 100 and a door 200. The cabinet device 100 includes a cabinet body 110. Along the height direction of the cabinet body 110, a cooling cavity 111, a freezing cavity 112, and a refrigerator cavity 113 are spaced apart. The door 200 is movably connected to the cabinet body 110 so as to open or close the freezing cavity 112 and the refrigerator cavity 113.

[0042] It should be noted that the height of the box body is... Figure 4 The Z direction is shown.

[0043] In some embodiments, the cabinet may also be provided with a preservation chamber and a temperature-changing chamber, etc., which can be configured according to actual needs.

[0044] It should be noted that there are several ways to achieve the movable connection between the box body 110 and the box door 200, including the box body 110 and the box door 200 being rotatably connected and the box body 110 and the box door 200 being slidably connected.

[0045] like Figure 2 as well as Figure 4 As shown, in some embodiments, a refrigeration module 120 is provided in the refrigeration chamber 111. The refrigeration module 120 includes a compressor 121, a condenser 122, an evaporator 123, and a throttling device 124. The evaporator 123 is disposed in the refrigeration chamber 111.

[0046] Combination Figure 2 As shown, when the refrigerator 10 is running, the compressor 121 outputs high-temperature, high-pressure gaseous refrigerant, which is delivered to the condenser 122. The condenser 122 condenses the high-temperature, high-pressure gaseous refrigerant into medium-temperature, high-pressure refrigerant. The medium-temperature, high-pressure refrigerant then undergoes expansion and throttling through the expansion valve 124, further reducing its pressure and temperature. Low-temperature, low-pressure liquid refrigerant flows out from the expansion valve 124 to the evaporator 123. The low-temperature, low-pressure liquid refrigerant evaporates into gaseous refrigerant within the evaporator 123. This gaseous refrigerant can then be delivered to the freezer compartment 112 and the refrigerator compartment 113 to provide a low-temperature environment for both compartments.

[0047] like Figure 3 as well as Figure 4 As shown, in some embodiments, the enclosure device 100 further includes an air duct assembly 130, a first return air duct 140, and a second return air duct 160. The air duct assembly 130 is connected to the cooling chamber 111, the freezing chamber 112, and the refrigeration chamber 113, respectively, so that the cooling chamber 111 can provide cold air to the freezing chamber 112 and the refrigeration chamber 113. The first return air duct 140 is connected between the refrigeration chamber 113 and the cooling chamber 111, and the refrigeration chamber 113 is connected to the cooling chamber 111 through the first return air duct 140. The second return air duct 160 is connected between the freezing chamber 112 and the cooling chamber 111, and the freezing chamber 112 is connected to the cooling chamber 111 through the second return air duct 160.

[0048] Thus, when the refrigerator 10 is in use, the ice-making cavity can generate cold air. The air duct assembly 130 is connected to the cooling cavity 111, the freezing cavity 112, and the refrigerator cavity 113 respectively, allowing the cold air generated in the cooling cavity 111 to be transferred to the freezing cavity 112 and the refrigerator cavity 113 through the air duct assembly 130, thereby providing a low-temperature environment for the freezing cavity 112 and the refrigerator cavity 113, which is beneficial for preserving food in the freezing cavity 112 and the refrigerator cavity 113. Furthermore, the cooling cavity 111, the freezing cavity 112, and the refrigerator cavity 113 are spaced apart along the height of the refrigerator body 110, which facilitates the delivery of cold air. The refrigerator cavity 113 is connected to the cooling cavity 111 by a first return air duct 140, allowing the refrigerator cavity 113 to be connected to the cooling cavity 111 through the first return air duct 140. When the gas in the refrigeration chamber 113 is recirculated, the gas can flow directly back to the refrigeration chamber 111 through the first return air channel 140. This avoids contact between the refrigeration chamber 113 and the freezing chamber 112, where different temperatures of cold air come into contact during the recirculation process, preventing icing in both chambers. A second return air channel 160 connects the freezing chamber 112 and the refrigeration chamber 111, allowing the freezing chamber 112 to connect with the refrigeration chamber 111. When the gas in the freezing chamber 112 is recirculated, the gas can flow directly back to the refrigeration chamber 111 through the second return air channel 160. This also avoids contact between the freezing chamber 112 and the refrigeration chamber 113, where different temperatures of cold air come into contact during the recirculation process, preventing icing in both chambers. The air duct assembly 130 enables the cooling chamber 111 to supply cold air to both the freezer chamber 112 and the refrigerator chamber 113, which helps reduce the manufacturing cost of the refrigerator 10. The dual return air duct structure effectively reduces or avoids the possibility of ice buildup inside the refrigerator 10, thereby improving the user experience.

[0049] By setting up the first return air duct 140, the refrigerator compartment 113 can be connected to the freezer compartment 111 through the first return air duct 140. The design of the first return air duct 140 facilitates the circulation of cold air inside the refrigerator compartment 113. The heavier air cooled by the evaporator 123 will naturally sink, while the warmer air inside the freezer compartment 112 will rise and be transported to the freezer compartment 111 through the second return air duct 160 to be cooled again, thus forming a continuous airflow circulation to ensure a uniform temperature inside the refrigerator 10.

[0050] It should be noted that the air duct assembly 130 can be implemented in several ways. It can be a pipe that connects to the refrigeration chamber 111, the freezing chamber 112, and the refrigeration chamber 113 respectively. Alternatively, it can be a cover plate that cooperates with the cabinet body 110 to form a channel, connecting to the refrigeration chamber 111, the freezing chamber 112, and the refrigeration chamber 113 respectively. Any implementation that allows for connection to the refrigeration chamber 111, the freezing chamber 112, and the refrigeration chamber 113 is acceptable.

[0051] like Figure 4 as well as Figure 5 As shown, in some embodiments, the air duct assembly 130 is disposed on the housing body 110. The air duct assembly 130 includes a partition 131, which is disposed on the air duct assembly 130 to form a first air duct 132 and a second air duct 133 that are mutually isolated. The freezer chamber 112 is connected to the refrigeration chamber 111 through the first air duct 132. The refrigerator chamber 113 is connected to the freezer chamber 112 through the second air duct 133. Thus, by placing the air duct assembly 130 on the housing body 110, the installation of the air duct assembly 130 is achieved, which is beneficial to make the internal structure of the housing device 100 compact. By providing the partition 131 on the air duct assembly 130, and using the partition 131 to divide the air duct assembly 130 into a first air duct 132 and a second air duct 133 that are mutually isolated, the air duct assembly 130 is further improved. The freezing chamber 112 is connected to the refrigeration chamber 111 via a first air duct 132, allowing cold air generated in the refrigeration chamber 111 to be transported to the freezing chamber 112 through the first air duct 132, thus providing a low-temperature environment for freezing. The refrigeration chamber 113 is connected to the freezing chamber via a second air duct 133, allowing cold air from the freezing chamber 112 to be transported to the refrigeration chamber 113 through the second air duct 133, thus providing a low-temperature environment for refrigeration. A partition 131 separates the first air duct 132 and the second air duct 133, preventing cold air from the refrigeration chamber 111 from being directly transported to the refrigeration chamber 113, which would cause a large amount of cold air from the refrigeration chamber 111 to be transported to the refrigeration chamber 113, resulting in overcooling in the refrigeration chamber 113.

[0052] like Figures 4 to 6 As shown, in some embodiments, the first air duct 132 includes a first air inlet 1321 and a first air outlet 1322 that are interconnected. The first air inlet 1321 is connected to the cooling chamber 111, and the first air outlet 1322 is connected to the freezing chamber 112. Thus, by connecting the first air inlet 1321 of the first air duct 132 to the cooling chamber 111, the cold air generated by the cooling chamber 111 can be transported into the first air duct 132 through the first air inlet 1321. And by connecting the first air outlet 1322 of the first air duct 132 to the freezing chamber 112, the cold air in the first air duct 132 can be transported into the freezing chamber 112 through the first air outlet 1322 to provide cold air to the freezing chamber 112.

[0053] It should be noted that the number of the first air inlet 1321 and the first air outlet 1322 can be one, two, three or more, etc., and can be set according to actual needs.

[0054] like Figures 4 to 6 As shown, in some embodiments, the second air duct 133 includes a second air inlet 1331 and a second air outlet 1332 that are interconnected. The second air inlet 1331 is connected to the cooling chamber 111, and the second air outlet 1332 is connected to the refrigerator chamber 113. Thus, by connecting the second air inlet 1331 of the second air duct 133 to the cooling chamber 111, cold air in the cooling chamber 111 can enter the second air duct 133 through the second air inlet 1331. And by connecting the second air outlet 1332 of the second air duct 133 to the refrigerator chamber 113, cold air in the second air duct 133 can be transported to the refrigerator chamber 113 through the second air outlet 1332 to provide cold air to the refrigerator chamber 113.

[0055] It should be noted that the number of the second air inlet 1331 and the second air outlet 1332 can be one, two, three, or more, etc., and can be set according to actual needs.

[0056] like Figure 4 as well as Figure 5 As shown, in some embodiments, the air duct assembly 130 further includes a first airflow generator 134, which is disposed within the second air duct 133 to draw cold air from the freezing chamber 112 to the refrigerator chamber 113. Thus, when supplying cold air to the refrigerator chamber 113, the first airflow generator 134 is controlled to draw cold air from the freezing chamber 112 into the refrigerator chamber 113. Simultaneously, the amount of cold air supplied from the freezing chamber 112 to the refrigerator chamber 113 can be controlled by adjusting the probability of the first airflow generator 134, thereby more accurately controlling the temperature within the refrigerator chamber 113 and preventing overcooling or overheating of the refrigerator chamber 113.

[0057] It should be noted that the first airflow generating component 134 can be implemented in various ways, including but not limited to fans, blowers, and blowers.

[0058] like Figure 4 as well as Figure 6As shown, in some embodiments, the cooling cavity 111 is further provided with a second airflow generator 150, which can draw cold air from the cooling cavity 111 into the first air duct 132. Thus, within the cooling cavity 111, the evaporator 123 can generate cold air, and by providing the second airflow generator 150, the cold air within the cooling cavity 111 can be better drawn into the first air duct 132, which is beneficial for improving the cooling efficiency of the refrigerator 10.

[0059] like Figures 7 to 9 As shown, in some embodiments, the cabinet device 100 further includes a second return air vent 161, through which the freezer cavity 112 communicates with the refrigeration cavity 111. Thus, by providing the second return air vent 161, the freezer cavity 112 can be connected to the refrigeration cavity 111. The design of the second return air vent 161 facilitates the circulation of cold air within the freezer cavity 112. The heavier air cooled by the evaporator 123 naturally sinks, while the warmer air inside the freezer cavity 112 rises and is transported to the refrigeration cavity 111 through the second return air vent 161 for further cooling, thereby forming a continuous airflow circulation and ensuring a uniform temperature inside the refrigerator 10.

[0060] like Figure 8 as well as Figure 9 As shown, in some embodiments, the enclosure device 100 further includes a separator 170. A first return air duct 140 includes a first return air inlet 141 disposed in the refrigeration chamber 111, and a second return air duct 160 includes a second return air inlet 161 disposed in the refrigeration chamber 111. The separator 170 is disposed between the second return air inlet 161 and the first return air inlet 141 to separate them. Thus, airflow circulates within the refrigeration chamber 113. Air from the refrigeration chamber 113 returns to the refrigeration chamber 111 through the first return air duct 140 and the first return air inlet 141, allowing cold air to circulate within the refrigeration chamber 113. Because the temperatures in the refrigeration chamber 113 and the freezer chamber 112 are different, and the humidity of the cold air in the refrigeration chamber 113 is high, if the return airflow from the freezer chamber 112 and the refrigeration chamber 113 directly contacts the second return air inlet 161 and the first return air inlet 141, icing can easily occur. By setting a separator 170 between the second return air inlet 161 and the first return air inlet 141, direct contact between the airflow output from the second return air inlet 161 and the first return air inlet 141 is avoided, reducing the possibility of icing.

[0061] like Figure 8 as well as Figure 9 As shown, in some embodiments, the separator 170 is a partition foam. Using partition foam reduces costs and also provides good insulation, reducing energy loss.

[0062] like Figure 4 as well as Figure 5 As shown, in some embodiments, the enclosure device 100 further includes an automatic damper 180, which is disposed in the second air duct 133 to open or close the second air duct 133. Thus, by providing an automatic damper 180 in the second air duct 133, the connection and isolation between the refrigerator cavity 113 and the freezer cavity 112 can be controlled, thereby controlling the amount of cold air entering the refrigerator cavity 113 and preventing the refrigerator cavity 113 from becoming too cold or too hot.

[0063] In some embodiments, the first return air duct 140 is further provided with a switch (not shown), which can be used to open or close the first return air duct 140. In this way, by controlling the switch, the airflow circulation within the refrigeration chamber 113 can be controlled to meet different user needs.

[0064] like Figure 3 as well as Figure 4 As shown, in some embodiments, the cooling cavity 111, the freezing cavity 112, and the refrigerator cavity 113 are sequentially spaced along the height direction of the refrigerator body 110, with the cooling cavity 111 located at the top of the refrigerator body 110. Thus, by arranging the cooling cavity 111, freezing cavity 112, and refrigerator cavity 113 spaced along the height direction of the refrigerator body 110, the internal structure of the refrigerator 10 is compact and the layout is more rational when the air duct assembly 130 and the first return air duct 140 are installed. Since the cooling cavity 111 is located at the top of the refrigerator body 110, it utilizes the fact that cold air is denser than hot air and naturally sinks. When the cooling cavity 111 is at the top of the refrigerator 10, the air it cools automatically flows downwards, while warmer air rises to the top and is cooled again. This creates a natural air circulation, which helps maintain the uniformity of the temperature inside the entire refrigerator 10, reduces energy consumption, and improves the operating efficiency of the refrigerator 10.

[0065] It should be noted that the technical solutions or features described in the above embodiments can be combined or complemented by each other without conflict. The scope of protection of this disclosure is not limited to the precise structures described in the above embodiments and shown in the accompanying drawings; all modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this disclosure should be included within the scope of protection of this disclosure.

Claims

1. A box-type device, characterized in that, include: The box body has a refrigeration chamber, a freezing chamber and a refrigeration chamber spaced apart along its height. The air duct assembly is connected to the cooling chamber, the freezing chamber, and the refrigeration chamber respectively, so that the cooling chamber can provide cold air to the freezing chamber and the refrigeration chamber; A first return air duct connects the refrigeration chamber and the cooling chamber, and the refrigeration chamber is connected to the cooling chamber through the first return air duct; as well as The second return air duct connects the freezing chamber and the refrigeration chamber, and the freezing chamber is connected to the refrigeration chamber through the second return air duct.

2. The enclosure device according to claim 1, characterized in that, The enclosure also includes a separator. The first return air duct includes a first return air inlet disposed in the refrigeration chamber. The second return air duct includes a second return air inlet disposed in the refrigeration chamber. The separator is disposed between the second return air inlet and the first return air inlet to separate the second return air inlet from the first return air inlet.

3. The enclosure device according to claim 1, characterized in that, The air duct assembly is disposed on the box body. The air duct assembly includes a partition, which is disposed on the air duct assembly to form a first air duct and a second air duct that are isolated from each other. The freezing chamber is connected to the refrigeration chamber through the first air duct. The refrigeration chamber is connected to the freezing chamber through the second air duct.

4. The enclosure device according to claim 3, characterized in that, The first air duct includes a first air inlet and a first air outlet that are connected to each other; the first air inlet is connected to the refrigeration chamber, and the first air outlet is connected to the freezing chamber.

5. The enclosure device according to claim 3, characterized in that, The second air duct includes a second air inlet and a second air outlet that are interconnected; the second air inlet is connected to the refrigeration chamber, and the second air outlet is connected to the refrigerator chamber.

6. The enclosure device according to claim 3, characterized in that, The air duct assembly further includes a first airflow generating element, which is disposed in the second air duct to draw cold air from the freezing chamber to the refrigeration chamber.

7. The enclosure device according to claim 3, characterized in that, The cooling chamber is equipped with an evaporator and a second airflow generator, which can draw cold air from the cooling chamber into the first air duct.

8. The enclosure device according to claim 3, characterized in that, The enclosure device also includes an automatic damper, which is disposed in the second air duct to open or close the second air duct.

9. The enclosure equipment according to any one of claims 1 to 8, characterized in that, The refrigeration chamber, the freezing chamber, and the refrigeration chamber are arranged sequentially at intervals along the height direction of the box body, and the refrigeration chamber is located at the top of the box body.

10. A refrigerator, characterized in that, Includes a door and a cabinet device as described in any one of claims 1 to 9; the door is movably connected to the cabinet body to open or close the freezing chamber and / or the refrigeration chamber.

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