Refrigeration appliance

Abstract

The application discloses a refrigeration equipment, which comprises a box body, a door body, an evaporator and an air duct, wherein the box body comprises a heat exchange cavity and a chamber; the door body is movably connected with the box body and can open or close the chamber; the evaporator is arranged in the heat exchange cavity; the air duct is used for gas flow and at least part of the air duct is arranged in the door body; the heat exchange cavity is communicated with the chamber through the air duct; and a side wall of the chamber opposite to the door body is not provided with the air duct. According to the refrigeration equipment, the air duct is arranged on the door body, the air duct does not occupy the side space of the chamber, the internal storage space of the chamber is increased, and the storage capacity of the chamber is increased.

Description

Technical Field

[0001] This invention relates to the field of household appliance technology, and more particularly to a refrigeration device. Background Technology

[0002] This section provides only background information relevant to this disclosure and is not necessarily prior art.

[0003] In the field of refrigeration equipment, air-cooled refrigeration equipment has a growing market share due to its faster cooling speed. For typical air-cooled refrigeration equipment, the cooling capacity required inside the cabinet comes from the low-temperature airflow after being cooled by the evaporator. This low-temperature airflow enters the cabinet through the air outlet located on the back of the cabinet via the air supply channel, thereby cooling the food inside.

[0004] Traditional air-cooled refrigeration equipment can generally meet the temperature requirements of each compartment by supplying air. However, placing the air supply duct on the back of the cabinet and occupying the space on the back of the cabinet shortens the depth of the drawers and reduces the internal storage space of the cabinet. Summary of the Invention

[0005] The objective of this invention is to at least solve the problem that placing the air supply duct on the rear side of the housing occupies the space on the side of the housing. This objective is achieved through the following technical solution:

[0006] A first aspect of the present invention provides a refrigeration device, the refrigeration device comprising: a housing, the housing including a heat exchange chamber and a compartment; a door movably connected to the housing, the door being capable of opening or closing the compartment; an evaporator disposed in the heat exchange chamber; and an air duct for supplying gas flow, at least a portion of the air duct being disposed in the door, the heat exchange chamber being connected to the compartment via the air duct; wherein the air duct is not disposed on the side wall of the compartment opposite to the door.

[0007] According to the refrigeration equipment of the present invention, the air duct is set on the door to avoid the air duct occupying the side space of the compartment, thereby increasing the internal storage space of the compartment and increasing the storage capacity of the compartment.

[0008] In addition, the refrigeration device according to the present invention may also have the following additional technical features:

[0009] In some embodiments of the present invention, the air duct includes: an air supply duct connected to the heat exchange chamber; an air delivery duct disposed on the door body, wherein the air supply duct is connected to the compartment via the air delivery duct; and a return air duct, wherein the heat exchange chamber is connected to the compartment via the return air duct.

[0010] In some embodiments of the present invention, the compartment includes a freezer compartment and a refrigerator compartment, the heat exchange chamber is disposed between the refrigerator compartment and the freezer compartment, or the heat exchange chamber is disposed at the bottom of the compartment, or the heat exchange chamber is disposed at the top of the compartment; the refrigerator compartment and the freezer compartment are respectively connected to the heat exchange chamber through the return air duct, and the refrigerator compartment and the freezer compartment are respectively connected to the air supply duct through the air supply duct.

[0011] In some embodiments of the present invention, the door body includes a first door body and a second door body, the first door body being correspondingly disposed with respect to the refrigerator compartment to open or close the refrigerator compartment, and the second door body being correspondingly disposed with respect to the freezer compartment to open or close the freezer compartment; the air supply duct includes a first air supply duct disposed in the first door body and a second air supply duct disposed in the second door body; the air conveying duct includes a main air conveying duct and a first sub-air conveying duct and a second sub-air conveying duct communicating with the main air conveying duct, the first sub-air conveying duct communicating with the first air supply duct, and the second sub-air conveying duct communicating with the second air supply duct.

[0012] In some embodiments of the present invention, the refrigeration equipment further includes: a damper device, the damper device being used to control the opening and closing of the first air supply duct and / or the second air supply duct.

[0013] In some embodiments of the present invention, the damper device includes: a first driving device disposed on the first door body; a first damper drivenly connected to the first driving device, the first damper being movably disposed within the first air supply duct; and / or a second driving device disposed on the second door body; a second damper drivenly connected to the second driving device, the second damper being movably disposed within the second air supply duct.

[0014] In some embodiments of the present invention, the refrigeration equipment includes: a defrosting heating device disposed in the heat exchange chamber, the defrosting heating device being disposed adjacent to the evaporator.

[0015] In some embodiments of the present invention, when the first door is in a closed state, the first sub-air supply duct and the first air supply duct are connected; when the first door is in an open state, the first sub-air supply duct and the first air supply duct are disconnected; and / or when the second door is in a closed state, the second sub-air supply duct and the second air supply duct are connected; when the second door is in an open state, the second sub-air supply duct and the second air supply duct are disconnected.

[0016] In some embodiments of the present invention, the refrigeration device includes: a fan disposed in the heat exchange chamber, the fan being used to drive the airflow in the heat exchange chamber to flow from one side of the return air duct to one side of the supply air duct.

[0017] In some embodiments of the present invention, the fan is disposed close to the door relative to the evaporator, and the air outlet of the fan is connected to the air supply duct; the return air duct is located on the side of the evaporator away from the door, and the return air duct includes a first sub-return air duct connecting the heat exchange chamber and the refrigerator compartment and a second sub-return air duct connecting the heat exchange chamber and the freezer compartment.

[0018] In some embodiments of the present invention, the door body includes a door body and a duct housing connected to the door body, wherein the air supply duct is disposed within the duct housing.

[0019] In some embodiments of the present invention, the air supply duct includes a main air duct and at least two sub-air ducts connected to the main air duct, each of the sub-air ducts being provided with multiple sets of air outlets, the multiple sets of air outlets being arranged at intervals. Attached Figure Description

[0020] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the invention. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings:

[0021] Figure 1 A schematic diagram of a refrigeration device according to an embodiment of the present invention is shown (in the figure, a portion of the body structure is shown, and the door is in a closed state);

[0022] Figure 2 A schematic diagram of a portion of the door and housing in a refrigeration equipment structure according to an embodiment of the present invention is shown.

[0023] Figure 3 for Figure 2 A schematic diagram of the cross-sectional structure of section AA in the middle;

[0024] Figure 4 for Figure 2 Schematic diagram of the cross-sectional structure of the middle BB section;

[0025] Figure 5 for Figure 2 A magnified schematic diagram of a portion of the structure in section A.

[0026] Figure 6 A cross-sectional view of a refrigeration device according to an embodiment of the present invention is shown schematically;

[0027] Figure 7 for Figure 6 Enlarged schematic diagram of a local structure in section B;

[0028] Figure 8 An exploded view of the components of a refrigeration device according to an embodiment of the present invention is shown schematically.

[0029] Figure 9 A schematic diagram of the structure of a refrigeration device according to an embodiment of the present invention is shown.

[0030] The attached figures are labeled as follows:

[0031] 10-Box body, 11-Heat exchange chamber, 12-Compartment, 121-Refrigerator compartment, 122-Freezer compartment

[0032] 20-Door body, 21-Door body, 22-Air duct shell, 23-First door body, 231-First air supply duct, 24-Second door body, 241-Second air supply duct;

[0033] 30 - Evaporator;

[0034] 40 - Damper device, 41 - First drive device, 42 - First damper;

[0035] 50 - Defrosting heating device;

[0036] 60- Fan;

[0037] 100 - Air duct, 130 - Air supply duct, 131 - Main air supply duct, 132 - First sub-air supply duct, 133 - Second sub-air supply duct, 140 - Return air duct, 141 - First sub-return air duct, 142 - Second sub-return air duct; 150 - Supply air duct, 151 - Main air duct, 152 - Sub-air duct, 153 - Air outlet;

[0038] 201 - Shell, 202 - Foam layer. Detailed Implementation

[0039] Exemplary embodiments of the present disclosure will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

[0040] It should be understood that the terminology used herein is for the purpose of describing particular exemplary embodiments only and is not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms “a,” “an,” and “described” as used herein may also include the plural forms. The terms “comprising,” “including,” “containing,” and “having” are inclusive and therefore indicate the presence of the stated features, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, steps, operations, elements, components, and / or combinations thereof. The method steps, processes, and operations described herein are not construed as requiring them to be performed in a particular order described or illustrated unless the order of performance is explicitly indicated. It should also be understood that additional or alternative steps may be used.

[0041] Although terms such as first, second, third, etc., may be used in this document to describe multiple elements, components, regions, layers, and / or segments, these elements, components, regions, layers, and / or segments should not be limited by these terms. These terms may be used only to distinguish one element, component, region, layer, or segment from another. Unless the context clearly indicates otherwise, terms such as "first," "second," and other numerical terms used herein do not imply order or sequence. Therefore, the first element, component, region, layer, or segment discussed below may be referred to as the second element, component, region, layer, or segment without departing from the teachings of the exemplary embodiments.

[0042] For ease of description, spatial relative terms may be used in the text to describe the relationship of one element or feature relative to another element or feature, as shown in the figure. These relative terms include, for example, "inside," "outside," "middle," "outer," "below," "below," "above," "over," etc. Such spatial relative terms are intended to include different orientations of the device in use or operation, other than those depicted in the figure. For example, if the device in the figure is flipped, an element described as "below other elements or features" or "below other elements or features" would subsequently be oriented as "above other elements or features" or "above other elements or features." Therefore, the example term "below" can include both upper and lower orientations. The device may be otherwise oriented (rotated 90 degrees or in other directions), and the spatial relative descriptors used in the text will be interpreted accordingly.

[0043] like Figure 1As shown, according to an embodiment of the present invention, a refrigeration device is provided, comprising a housing 10, a door 20, an evaporator 30, and an air duct 100. The housing 10 defines a heat exchange chamber 11 and a compartment 12, the compartment 12 being used to store items, such as food items like vegetables and fruits, or meat products. The door 20 is movably connected to the housing 10, for example, the door 20 is hinged to the housing 10, and the compartment 12 is opened or closed by relative rotation between the door 20 and the housing 10. Alternatively, the door 20 is slidably connected to the housing 10, and the compartment 12 is opened or closed by relative sliding between the door 20 and the housing 10. The evaporator 30 is disposed within the heat exchange chamber 11, and the evaporator 30 is used to cool the air flowing through the heat exchange chamber 11 to form a cooling airflow. At least a portion of the air duct 100 is installed on the door 20. The air duct 100 connects the heat exchange chamber 11 and the compartment 12, allowing cooling airflow to flow into the compartment 12 and control the temperature inside the compartment 12. It should be noted that installing the air duct 100 on the door 20 improves the utilization rate of the internal space of the door 20. Furthermore, no air duct 100 is installed on the side wall of the compartment 12 opposite to the door 20, thus avoiding the air duct 100 occupying the side space of the compartment 12, thereby increasing the internal storage space of the compartment 12 and increasing the storage capacity of the compartment 12.

[0044] like Figures 1 to 8 As shown, the air duct 100 includes an air supply duct 130, a return air duct 140, and a supply air duct 150. The door 20 is equipped with the supply air duct 150 for airflow. The housing 10, which defines the heat exchange chamber 11, is equipped with the air supply duct 130 and the return air duct 140. The air supply duct 130 is located on the side of the heat exchange chamber 11 near the door 20, and its two ends are connected to the heat exchange chamber 11 and the supply air duct 150, respectively. The return air duct 140 is located on the rear wall of the housing 10 and connects the heat exchange chamber 11 and the compartment 12. The airflow flowing through the heat exchange chamber 11 exchanges heat with the evaporator 30 and then cools down to form a cooling airflow. This cooling airflow circulates sequentially between the heat exchange chamber 11 and the compartment 12, thereby controlling the temperature in the compartment 12. In this embodiment, the air supply duct 150 is set on the door 20, which improves the utilization rate of the internal space of the door 20 and avoids the air supply duct 150 occupying the side space of the room 12, thereby increasing the internal storage space of the room 12 and increasing the storage capacity of the room 12.

[0045] It should also be noted that, due to factors such as sealing and structural characteristics, the door 20 has poorer insulation than the side wall of the cabinet 10. Existing refrigeration equipment generally places the air supply duct 150 on the rear side wall of the compartment 12, and the air outlet 153 of the air supply duct 150 is also located on the rear side wall. This inevitably results in a lower temperature near the air outlet 153 and a higher temperature near the door 20, causing an uneven temperature distribution inside the compartment 12. In addition, since the side wall of the compartment 12 serves as the edge that limits the storage space, it is unavoidable that food will be placed against the side wall. When the air outlet 153 is located on the side wall of the compartment 12, the temperature near the air outlet 153 is lower, which can easily freeze the food that is in contact with the air outlet 153. In this embodiment, the air supply duct 150 is installed on the door 20, and the air outlet 153 is also installed on the door 20. This not only ensures that the area near the door 20 maintains a low temperature, but also avoids the food from freezing due to excessively low temperature in the area near the rear wall of the compartment 12, making the temperature distribution inside the compartment 12 more uniform.

[0046] It should also be emphasized that since the air outlet 153 is located on the door 20, the door 20 is generally designed to be concave or has a storage rack installed on it. This can reduce the probability that food placed in the compartment 12 will directly touch the air outlet 153, and maintain a certain distance between the air outlet 153 and the food in the compartment 12, thereby reducing the probability of food freezing.

[0047] In some embodiments of the present invention, such as Figure 1 and Figure 6 As shown, compartment 12 includes a freezer compartment 122 and a refrigerator compartment 121. The freezer compartment 122 is used to store frozen foods; for example, the temperature of the freezer compartment 122 can be controlled between -22°C and -14°C, and it is used for freezing and storing meat. The refrigerator compartment 121 is used to store fresh foods; for example, the temperature of the refrigerator compartment 121 can be controlled between 2°C and 10°C, and it is used for storing fruits and vegetables. The freezer compartment 122, refrigerator compartment 121, and heat exchange chamber 11 can be arranged sequentially along the height or width of the refrigeration equipment to avoid the heat exchange chamber 11 occupying the side space of the freezer compartment 122 or refrigerator compartment 121, thereby increasing the internal storage space of the freezer compartment 122 or refrigerator compartment 121 and improving its food storage capacity.

[0048] In one exemplary embodiment, the freezer compartment 122 is located at the bottom of the refrigeration unit, and the refrigerator compartment 121 is located at the top of the refrigeration unit. A bubble layer is provided between the freezer compartment 122 and the refrigerator compartment 121, and the heat exchange chamber 11 is disposed in the bubble layer. In this embodiment, by placing the heat exchange chamber 11 in the central beam, the evaporator 30 and other equipment can be prevented from occupying the rear space of the cabinet 10, thereby saving the rear space of the freezer compartment 122 or the refrigerator compartment 121 and improving the volume ratio of the freezer compartment 122 or the refrigerator compartment 121.

[0049] In other embodiments, the heat exchange chamber can also be located at the top or bottom of the refrigeration equipment to avoid the evaporator 30 and other equipment occupying the space at the rear of the refrigerator compartment 121 or freezer compartment 122, thereby increasing the volume ratio of the freezer compartment 122 or refrigerator compartment 121.

[0050] In some embodiments of the present invention, such as Figure 6 and Figure 7 As shown, a fan 60 is also installed in the heat exchange chamber 11. The fan 60 is positioned on the side near the door 20 relative to the evaporator 30. The air outlet of the fan 60 is directly connected to the air supply duct 130. When the fan 60 is running, it drives the airflow in the heat exchange chamber 11 to flow through the air supply duct 130 into the air delivery duct 150, and then into the refrigerator compartment 121 or the freezer compartment 122. This creates a negative pressure in the heat exchange chamber 11, thereby drawing the air in the refrigerator compartment 121 or the freezer compartment 122 into the heat exchange chamber 11 through the return air duct 140, thus achieving the circulation of cooling airflow. In this embodiment, the fan 60 is a volute fan 60. Both the volute fan 60 and the evaporator 30 are arranged laterally in the heat exchange chamber 11, that is, the volute fan 60 and the evaporator 30 are laid down to reduce the space occupied by the heat exchange chamber 11 in the vertical direction of the refrigeration equipment.

[0051] In some embodiments of the present invention, such as Figure 1 and Figure 6 As shown, the door 20 includes a first door 23 and a second door 24. The first door 23 corresponds to the refrigerator compartment 121, and the second door 24 corresponds to the freezer compartment 122, so that the refrigerator compartment 121 or the freezer compartment 122 can be opened or closed respectively using the independent first door 23 and second door 24. It should be noted that, as... Figure 3As shown, the first door 23 is provided with a first air supply duct 231, and the second door 24 is provided with a second air supply duct 241. In order to deliver cooling airflow to the refrigerator compartment 121 located above the heat exchange chamber 11 and the freezer compartment 122 located below the heat exchange chamber 11 respectively, the air supply duct 130 branches off from the main air supply duct 131 to form a first sub-air supply duct 132 upwards and a second sub-air supply duct 133 downwards, so that the air supply duct 130 has a horizontal Y-shaped structure. The first sub-air supply duct 132 is connected to the first air supply duct 231, and the second sub-air supply duct 133 is connected to the second air supply duct 241. The fan 60 drives the cooling air in the heat exchange chamber 11 to enter the refrigerator compartment 121 or the freezer compartment 122 through the first air supply duct 231 and the second air supply duct 241 respectively, thereby controlling the temperature of the refrigerator compartment 121 and the freezer compartment 122.

[0052] Furthermore, such as Figure 7 As shown, the return air duct 140 also forms a first sub-return air duct 141 located above and a second sub-return air duct 142 located below. The two ends of the first sub-return air duct 141 are connected to the refrigerator compartment 121 and the heat exchange chamber 11, respectively, and the two ends of the second sub-return air duct 142 are connected to the freezer compartment 122 and the heat exchange chamber 11, respectively. It should be emphasized that in this embodiment, as... Figure 6 and Figure 7 As shown, an opening communicating with the return air duct 140 is formed only at the bottom of the refrigerator compartment 121, and another opening communicating with the return air duct 140 is formed on the side of the freezer compartment 122. The return air duct 140 only occupies the rear space of the heat exchange chamber 11, and does not occupy the side space of the refrigerator compartment 121 and the freezer compartment 122. Therefore, the supply air duct 150 and the return air duct 140 in the refrigeration equipment proposed in this invention do not occupy the side space of the refrigerator compartment 121 and the freezer compartment 122, thereby maximizing the storage capacity of the refrigerator compartment 121 and the freezer compartment 122.

[0053] In some embodiments of the present invention, such as Figure 2 and Figure 5 As shown, the refrigeration equipment also includes a damper device 40, which includes a first drive device 41 and a first damper 42. The first drive device 41 is mounted on the first door body 23, and the first damper 42 is connected to the power output end of the first drive device 41. The first damper 42 is movably mounted in the first air supply duct 231. The first drive device 41 can drive the first damper 42 to move within the first air supply duct 231, thereby changing the size of the air supply opening between the first damper 42 and the side wall of the first air supply duct 231, so as to control the flow rate of the cooling airflow entering the refrigerator compartment 121 through the first air supply duct 231, thereby achieving the purpose of regulating the temperature inside the refrigerator compartment 121.

[0054] Alternatively, the damper device 40 may also include a second drive device (not shown in the figure) and a second damper (not shown in the figure). The second drive device is disposed on the second door body 24, and the second damper is connected to the power output end of the second drive device. The second damper is movably disposed in the second air supply duct 241. The second drive device can drive the second damper to move within the second air supply duct 241, thereby changing the size of the air supply opening between the second damper and the side wall of the second air supply duct 241, so as to control the flow rate of the cooling airflow entering the freezer compartment 122 through the second air supply duct 241, thereby achieving the purpose of regulating the temperature inside the freezer compartment 122.

[0055] In an exemplary embodiment, the first driving device can drive the first damper to rotate within the first air supply duct, and change the rotation angle of the first damper to change the air supply opening from a closed state to a state with the air supply opening at its maximum extent.

[0056] In another exemplary embodiment, such as Figure 5 As shown, the first driving device 41 can drive the first damper 42 to slide back and forth in the first air supply duct 231. By changing the degree to which the first damper 42 blocks the cross-section of the first air supply duct 231, the air supply opening is changed from a closed state to a state with the air supply opening at its maximum opening.

[0057] In some embodiments of the present invention, such as Figure 6 As shown, the refrigeration equipment also includes a defrosting heating device 50, which is an electric heating element. The defrosting heating device 50 is located at the bottom of the evaporator 30 and is used to heat the evaporator 30 to actively remove the frost frozen on the evaporator 30. In this embodiment, when the refrigeration equipment is in defrosting mode, the first air supply duct 231 and the second air supply duct 241 are closed by the damper device 40. On the one hand, this prevents the hot air generated by the defrosting heating device 50 from flowing into the refrigerator compartment 121 or the freezer compartment 122 through the air supply duct 150, which would cause the food temperature in the refrigerator compartment 121 or the freezer compartment 122 to rise rapidly and cause food spoilage, thus helping to ensure the food storage effect in the refrigerator compartment 121 or the freezer compartment 122; on the other hand, it reduces the heat loss after the defrosting heating device 50 heats the air, thus accelerating the defrosting speed of the evaporator 30. In some exemplary embodiments, the defrosting heating device 50 is an electric heating element, which can be a plate-shaped electric heating element laid flat under the evaporator 30, or a serpentine tubular point heating element laid under the evaporator 30.

[0058] In some embodiments of the present invention, such as Figure 8As shown, the door body 20 includes a door body 21 and an air duct housing 22. The door body 21 has a recessed structure that matches the contour of the air duct housing 22. The air duct housing 22 is installed within the recessed structure, and the air supply duct 150 is disposed within the air duct housing 22. By setting an independent air duct housing 22, modular production can be achieved, improving the production efficiency of the refrigeration equipment. The air duct housing can be installed onto the door body by snap-fit, for example, by setting snap-fit ​​structures on both the air duct housing and the door body to achieve rapid assembly of the air duct housing. Alternatively, the air duct housing can be glued to the door body using adhesive.

[0059] In an exemplary embodiment, the air supply duct is a groove structure formed on the duct housing or the door body. The duct housing and the door body are bonded together by an adhesive. The air supply duct is defined by the duct housing and the door body. This embodiment can reduce the processing difficulty of the air supply duct and reduce production costs.

[0060] In some embodiments of the present invention, such as Figures 2 to 4 As shown, the air supply duct 150 includes a main air duct 151 and at least two sub-air ducts 152. The damper 42 in the damper device 40 is disposed on the main air duct 151. The cooling airflow in the heat exchange chamber 11 flows into the main air duct 151 via the air supply duct 130, and is then dispersed by the at least two sub-air ducts 152 into multiple streams of cooling airflow, which flow to different areas of the refrigerator compartment 121 or freezer compartment 122 respectively. Specifically, each sub-air duct 152 is provided with multiple sets of air outlets 153, which are arranged sequentially and at intervals along the height direction of the refrigeration equipment to facilitate airflow to the refrigerator compartment 121 or freezer compartment 122 at different heights, thereby making the temperature of each block in the refrigerator compartment 121 and freezer compartment 122 more even. In an exemplary embodiment, the refrigerator compartment 121 has multiple horizontally arranged partitions that divide the refrigerator compartment 121 into multiple storage spaces, and each storage space is provided with at least one set of air outlets 153. The freezer compartment 122 has multiple storage drawers, and each storage drawer is equipped with at least one set of air outlets 153.

[0061] In one specific embodiment, such as Figure 2As shown, the air duct 150 on the first door 23 has two sub-ducts 152, which extend along the length of the first door 23. That is, when the refrigeration equipment is placed upright, the sub-ducts 152 extend along the height. The two sub-ducts 152 are symmetrically arranged about the central axis extending along the length of the first door 23, so that they are symmetrically distributed in the left and right areas of the first door 23. Each sub-duct 152 has three air outlets 153, which are horizontally rectangular openings. The three air outlets 153 are spaced apart along the length of the first door 23. Furthermore, the air outlets 153 in the two sub-ducts 152 are arranged in pairs at the same height. It should also be noted that the refrigerator compartment is divided into multiple refrigerated storage spaces by partitions (not shown in the figure). Each set of air outlets 153 on the two sub-air ducts 152 corresponds to one refrigerated storage space to supply cooling airflow to each refrigerated storage space, ensuring the uniformity of temperature throughout the refrigerator compartment. The two sub-air ducts 152 are connected as one unit in the area below the first door 23 and communicate with the main air duct 151, making the two sub-air ducts 152 have a Y-shaped structure. At the connection point between the main air duct 151 and the sub-air duct 152, the inner walls of the ducts are smoothly transitioned to reduce the resistance of the cooling airflow within the ducts. The damper in the damper device is slidably installed in the main air duct 151, perpendicular to the main air duct 151. The drive device drives the damper to extend and retract in a direction perpendicular to the main air duct 151, thereby changing the size of the air supply opening in the main air duct 151 to achieve the purpose of regulating the temperature inside the refrigerator compartment.

[0062] The air duct 150 on the second door 24 has two sub-ducts 152, which extend along the length of the second door 24. When the refrigeration equipment is placed upright, the sub-ducts 152 extend along the height. The two sub-ducts 152 are symmetrically arranged about the central axis extending along the length of the second door 24, so that they are symmetrically distributed on the left and right sides of the second door 24. Each sub-duct 152 has three air outlets 153, which are horizontally rectangular openings. The three air outlets 153 are spaced apart along the length of the first door 23. The air outlets 153 in the two sub-ducts 152 are arranged in pairs at the same height. It should also be noted that the freezer compartment can be divided into multiple frozen storage spaces by a drawer structure (not shown in the figure). Each set of air outlets 153 on the two sub-air ducts 152 corresponds to one frozen storage space to supply cooling airflow to each frozen storage space, ensuring the uniformity of temperature throughout the freezer compartment. The two sub-air ducts 152 are connected in the area above the second door 24 to form a main air duct 151, making the air supply duct 150 an inverted U-shaped structure. At the connection between the main air duct 151 and the sub-air duct 152, the inner walls of the ducts are smoothly transitioned to reduce the resistance of the cooling airflow within the duct.

[0063] In some embodiments of the present invention, the first sub-air supply duct 132 is provided with a first sealing interface, and the air supply duct 150 on the first door 23 is provided with a second sealing interface (not shown in the figure). The connection and disconnection of the first sub-air supply duct 132 and the air supply duct 150 are achieved through the sealing cooperation of the first sealing interface and the second sealing interface. When the first door 23 is closed, the first sealing interface and the second sealing interface are connected, making the first sub-air supply duct 132 and the air supply duct 150 connected. When the first door 23 is opened, the first sealing interface and the second sealing interface are disconnected, and the first sub-air supply duct 132 and the air supply duct 150 are disconnected, at which time the supply of cooling airflow to the refrigerator compartment 121 stops.

[0064] Understandably, the second sub-air duct 133 is provided with a first sealing interface, and the air supply duct 150 on the second door 24 is provided with a second sealing interface (not shown in the figure). The connection and disconnection of the second sub-air duct 133 and the air supply duct 150 are achieved through the sealing cooperation of the first and second sealing interfaces. When the second door 24 is closed, the first and second sealing interfaces are connected, making the second sub-air duct 133 and the air supply duct 150 connected. When the second door 24 is opened, the first and second sealing interfaces are disconnected, and the second sub-air duct 133 and the air supply duct 150 are disconnected, at which point the supply of cooling airflow to the freezer compartment 122 stops.

[0065] In an exemplary embodiment, the first sealing interface and the second sealing interface are correspondingly provided air duct openings, and an elastic sealing element (not shown in the figure) is provided around the air duct opening. When the door 20 is closed, the first sealing interface and the second sealing interface abut against each other and the elastic sealing element is elastically deformed to achieve a seal.

[0066] In another exemplary embodiment, one of the first sealing interface and the second sealing interface is a male connector and the other is a female connector (not shown in the figure). When the first door 23 or the second door 24 is closed, the male connector is inserted into the female connector to connect the air supply duct 150 and the air conveying duct 130. When the first door 23 or the second door 24 is opened, the male connector is pulled out from the female connector to disconnect the air supply duct 150 and the air conveying duct 130.

[0067] In one exemplary embodiment, such as Figure 9 As shown, the refrigeration equipment also includes a housing 201, specifically, a cabinet connected to the housing 201. The cabinet serves as the inner liner defining the refrigerator compartment 121 and the freezer compartment 122. A foam layer 202 is also provided between the housing and the cabinet, filled with thermal insulation material to reduce heat transfer between the inside and outside of the refrigeration equipment, thereby reducing the cooling capacity dissipation and achieving energy saving. The refrigeration equipment proposed in this invention increases the internal storage space of the compartments and the amount of items that can be stored by placing the air duct on the door, thus avoiding the air duct occupying the side space of the compartments.

[0068] The above description is merely a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A refrigeration device, characterized in that, The refrigeration equipment includes: The housing includes a heat exchange chamber and a compartment; A door is movably connected to the housing, and the door is capable of opening or closing the compartment; An evaporator is located in the heat exchange chamber; An air duct, which is used to supply gas flow, is provided in the door body in at least part of the air duct, and the heat exchange chamber is connected to the compartment through the air duct; The air duct is not installed on the side wall of the compartment opposite to the door. The air duct includes: An air duct is connected to the heat exchange chamber; An air supply duct is provided in the door body, and the air supply duct is connected to the room through the air supply duct; The heat exchange chamber is connected to the compartment via the return air duct. The compartment includes a freezer compartment and a refrigerator compartment. The heat exchange chamber is disposed between the refrigerator compartment and the freezer compartment, or the heat exchange chamber is disposed at the bottom of the compartment, or the heat exchange chamber is disposed at the top of the compartment. The refrigerator compartment and the freezer compartment are respectively connected to the heat exchange chamber through the return air duct, and the refrigerator compartment and the freezer compartment are respectively connected to the air supply duct through the air supply duct; The door includes a first door and a second door. The first door is configured to open or close the refrigerator compartment, and the second door is configured to open or close the freezer compartment. The air supply duct includes a first air supply duct provided in the first door body and a second air supply duct provided in the second door body; The air supply duct includes a main air supply duct and a first sub-air supply duct and a second sub-air supply duct connected to the main air supply duct. The first sub-air supply duct is connected to the first air supply duct, and the second sub-air supply duct is connected to the second air supply duct.

2. The refrigeration equipment according to claim 1, characterized in that, The refrigeration equipment also includes: A damper device is used to control the opening and closing of the first air supply duct and / or the second air supply duct.

3. The refrigeration equipment according to claim 2, characterized in that, The damper device includes: The first driving device is disposed on the first door body; A first damper is connected to the first driving device and is movably disposed within the first air supply duct; and / or The second drive device is located on the second door body; The second damper is connected to the second drive device and is movably disposed within the second air supply duct.

4. The refrigeration equipment according to claim 3, characterized in that, The refrigeration equipment also includes: A defrosting heating device is provided in the heat exchange chamber, and the defrosting heating device is arranged adjacent to the evaporator.

5. The refrigeration equipment according to claim 1, characterized in that, When the first door is closed, the first sub-air supply duct and the first air supply duct are connected. When the first door is in the open state, the first sub-air supply duct and the first air delivery duct are disconnected; and / or When the second door is closed, the second sub-air supply duct and the second air delivery duct are connected. When the second door is in the open state, the second sub-air supply duct and the second air delivery duct are disconnected.

6. The refrigeration equipment according to claim 1, characterized in that, The refrigeration equipment also includes: A fan is provided in the heat exchange chamber, and the fan is used to drive the airflow in the heat exchange chamber to flow from one side of the return air duct to one side of the supply air duct.

7. The refrigeration equipment according to claim 6, characterized in that, The fan is positioned close to the door relative to the evaporator, and the air outlet of the fan is connected to the air supply duct. The return air duct is located on the side of the evaporator away from the door, and the return air duct includes a first sub-return air duct connecting the heat exchange chamber and the refrigerator compartment, and a second sub-return air duct connecting the heat exchange chamber and the freezer compartment.

8. The refrigeration equipment according to any one of claims 1 to 7, characterized in that, The door body includes a door body and a duct housing connected to the door body, and the air supply duct is located inside the duct housing.

9. The refrigeration equipment according to claim 8, characterized in that, The air supply duct includes a main air duct and at least two sub-air ducts connected to the main air duct. Each sub-air duct is provided with multiple sets of air outlets, which are arranged at intervals.

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