Refrigerator

Abstract

The application discloses a refrigerator, a first chamber and a second chamber are respectively located on the left and right sides of a partition, an air supply assembly comprises an air duct shell, a first air duct part and a second air duct part, the air duct shell is provided with a heat exchange cavity and a ventilation cavity which are connected in communication, the air duct shell is communicated with the first air duct part and the second air duct part respectively, the first air duct part is provided with a first air port which is connected with the first chamber, the second air duct part is provided with a second air port which is connected with the second chamber, the air duct shell is located in the partition, the air duct shell is provided with a second ventilation port which is connected with the ventilation cavity, an evaporator is located in the heat exchange cavity, a first ventilation pipe is arranged in a second door body, the first ventilation pipe is provided with a first opening and a second opening which are connected in communication, the first opening is communicated with the second chamber, and the second opening is communicated with the second ventilation port, the air duct shell and the evaporator are arranged in the partition, so that the storage space is increased, and the first ventilation pipe is arranged in the second door body, ventilation in the door body is utilized, the drawer depth is increased, and the use volume is improved.

Description

Technical Field

[0001] This invention relates to the field of refrigeration equipment technology, and particularly to refrigerators. Background Technology

[0002] In related technologies, air-cooled refrigerators typically place the evaporator at the rear of the cabinet and deliver cold air to the freezer and refrigerator compartments through freezing and refrigeration air duct components. However, the above structure occupies the space at the back of the cabinet, affecting the depth of the drawers. Furthermore, the cold air blows from the rear of the compartment to the front, and the ventilation path occupies the front and rear space of the cabinet, affecting the depth of the drawers. Summary of the Invention

[0003] The present invention aims to at least solve one of the technical problems existing in the prior art. To this end, the present invention proposes a refrigerator that can increase the storage space of the refrigerator.

[0004] A refrigerator according to an embodiment of the present invention includes a cabinet, a first door, a second door, an air supply assembly, an evaporator, a fan, and a first ventilation duct. A central partition is provided inside the cabinet, and a first compartment and a second compartment are formed within the cabinet, the first compartment and the second compartment being located on the left and right sides of the central partition, respectively. The first door is connected to the cabinet and is used to open or close the first compartment. The second door is connected to the cabinet and is used to open or close the second compartment. The air supply assembly includes an air duct housing, a first air duct component, and a second air duct component. The air duct housing has a heat exchange chamber and a ventilation chamber that are connected to each other. The first air duct component is not connected to the second air duct component. The first air duct component has a first air outlet connecting to the first compartment, and the second air duct component has a second air outlet connecting to the second compartment. The air duct housing is located inside the middle partition and has a second air outlet connecting to the ventilation cavity. The evaporator is located inside the heat exchange cavity. The fan supplies air to the first air duct component and the second air duct component. The first ventilation pipe is located inside the second door body and has a first opening and a second opening that are connected. The first opening is connected to the second compartment, and the second opening is connected to the second air outlet.

[0005] The refrigerator according to embodiments of the present invention has at least the following beneficial effects: by installing the air duct housing and evaporator inside the middle partition, the refrigerator's depth space is not occupied, which helps to increase the storage space. By setting the first ventilation duct inside the second door, ventilation inside the door is utilized, increasing the drawer depth and improving the usable volume.

[0006] According to some embodiments of the present invention, the first air duct component and the second air duct component are located within the partition plate.

[0007] According to some embodiments of the present invention, the first air duct component and the second air duct component are arranged side by side on the top of the air duct housing. The first air duct component is provided with a plurality of first air outlets, which are distributed vertically at intervals. The second air duct component is provided with a plurality of second air outlets, which are distributed vertically at intervals.

[0008] According to some embodiments of the present invention, the second air duct component is located on the side of the first air duct component away from the second door body.

[0009] According to some embodiments of the present invention, a third compartment is formed inside the housing, the third compartment and the second compartment are located on the same side of the partition, and the air supply assembly further includes a third air duct component communicating with the air duct housing, the third air duct component having a third air outlet communicating with the third compartment, the third air duct component being located between the third compartment and the second compartment and outside the partition.

[0010] According to some embodiments of the present invention, the first ventilation duct is provided with a third opening communicating with the third chamber, and the third opening is communicating with the second ventilation opening.

[0011] According to some embodiments of the present invention, the air duct housing is provided with a third outlet and an air guide, the third air duct component is provided with an air inlet communicating with the third air outlet, and the air guide is used to guide the air at the third outlet to the air inlet.

[0012] According to some embodiments of the present invention, the second air outlet and the air inlet are located at the front and rear ends of the second air duct component, respectively.

[0013] According to some embodiments of the present invention, the refrigerator further includes a fan cover, which is located inside the heat exchange chamber and covers the fan. The fan cover has a first outlet and a second outlet, the first outlet being connected to the first air duct component and the second outlet being connected to the second air duct component.

[0014] According to some embodiments of the present invention, the lower end of the air duct housing is provided with a first vent that communicates with the ventilation cavity, and the first vent is located on the side wall of the first compartment.

[0015] According to some embodiments of the present invention, a second ventilation pipe is provided at the lower end of the air duct housing, a second ventilation opening is provided in the second ventilation pipe, and the end face of the second ventilation pipe facing the second door is flush with the side of the middle partition.

[0016] According to some embodiments of the present invention, the air duct housing is provided with a detachable side plate to open or close the heat exchange chamber, and the side plate is part of the side wall of the first chamber.

[0017] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0019] Figure 1 This is a schematic diagram of a side-by-side refrigerator in related technologies;

[0020] Figure 2 for Figure 1 The AA section view shown;

[0021] Figure 3 This is a schematic diagram of a refrigerator according to an embodiment of the present invention;

[0022] Figure 4 This is a schematic diagram of the air supply assembly according to an embodiment of the present invention;

[0023] Figure 5 This is a schematic diagram of the air supply assembly from another perspective according to an embodiment of the present invention;

[0024] Figure 6 for Figure 3 The BB cross-sectional view shown (with the second door closed);

[0025] Figure 7 for Figure 3 The diagram shown is a view of the refrigerator with the door omitted.

[0026] Figure 8 for Figure 3 The diagram shown is a schematic of the refrigerator from another perspective, omitting the door.

[0027] Figure label:

[0028] 101. Cabinet body; 102. First door; 103. Second door; 104. Freezer compartment; 105. Refrigerator compartment; 106. Freezer air outlet; 107. Freezer air return outlet; 108. Refrigerator air outlet; 109. Refrigerator air return outlet; 110. Middle partition;

[0029] 201. Refrigeration air duct components;

[0030] 301. Variable temperature compartment; 302. Horizontal partition; 303. Second return air vent; 304. First opening; 305. Second opening; 306. Third opening;

[0031] 401. Duct housing; 402. First duct component; 403. Third duct component; 404. Second duct component; 405. Heat exchange chamber; 406. Fan; 407. Evaporator; 408. First air outlet; 409. First damper; 410. Return air chamber; 411. First return air duct; 412. Second return air duct; 413. Fan cover; 414. Straight pipe section; 415. First bend section; 416. Second bend section; 417. Third bend section;

[0032] 501. Second air outlet; 502. Third air outlet; 503. Second damper; 504. Third outlet; 505. Air guide section; 506. Air supply duct;

[0033] 801, First return air vent. Detailed Implementation

[0034] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0035] In the description of this invention, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc., are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0036] In the description of this invention, "several" means one or more, "more than" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0037] In the description of this invention, unless otherwise explicitly defined, terms such as "set up," "install," and "connect" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this invention in conjunction with the specific content of the technical solution.

[0038] Reference Figure 1As shown, it can be understood that the side-by-side refrigerator in the related technology includes a cabinet 101, a first door 102, and a second door 103. The cabinet 101 has a cooling compartment. The first door 102 and the second door 103 are pivotally mounted on the cabinet 101 to jointly open and close the cooling compartment. The left and right doors are arranged opposite each other. Specifically, the cooling compartment includes a first compartment and a second compartment, which are separated by a partition 110. The partition 110 is positioned between the first and second compartments to separate them, ensuring the cooling effect of both compartments. The first door 102 is pivotally connected to the cabinet 101 and can close the first compartment. The second door 103 is pivotally connected to the cabinet 101 and can close the second compartment. The second door 103 and the first door 102 are arranged opposite each other in the left-right direction.

[0039] It is understandable that the first compartment and the second compartment can be one of the freezer compartment 104, the refrigerator compartment 105, and the variable temperature compartment 301. The following explanation will take the freezer compartment 104 as the first compartment and the refrigerator compartment 105 as the second compartment.

[0040] Reference Figure 1 and Figure 2 As shown, it can be understood that the cabinet 101 contains a freezer air duct component 201 and a refrigerator air duct component, which are located at the rear of the cabinet 101. The evaporator 407 assembly is also correspondingly located at the rear of the cabinet 101. The freezer air outlet 106 of the freezer air duct component 201 is located on the upper side of the rear of the freezer compartment 104, and the freezer return air outlet 107 of the freezer air duct component 201 is located on the lower side of the rear of the freezer compartment 104. The refrigerator air outlet 108 of the refrigerator air duct component is located on the upper side of the rear of the refrigerator compartment 105, and the refrigerator return air outlet 109 of the refrigerator air duct component is located on the lower side of the rear of the refrigerator compartment 105. The freezer air duct component 201 and the refrigerator air duct component are located in the rear space of the cabinet 101, affecting the depth of the drawers. Furthermore, the air cooled by the evaporator 407 blows from the rear of the cabinet 101 to the front of the cabinet 101. When there is a lot of food stored, the airflow at the front of the cabinet 101 is small, which causes the food temperature at the front of the cabinet 101 to rise.

[0041] Reference Figure 3 As shown, it can be understood that the refrigerator of this embodiment includes a cabinet 101 and a middle partition 110. The cabinet 101 is provided with a freezer compartment 104, a refrigerator compartment 105 and a variable temperature compartment 301. The freezer compartment 104 is located on the left side of the middle partition 110, the refrigerator compartment 105 and the variable temperature compartment 301 are located on the right side of the middle partition 110, and the refrigerator compartment 105 is located above the variable temperature compartment 301.

[0042] It should be noted that the cabinet 101 may have only two temperature zones: a freezer compartment 104 and a variable temperature compartment 301, or two temperature zones: a freezer compartment 104 and a refrigerator compartment 105, or more than four temperature zones.

[0043] Reference Figure 4 and Figure 5 As shown, the refrigerator is equipped with an air supply assembly, and part of the air supply assembly is installed inside the middle partition 110. The middle partition 110 has a certain thickness to accommodate part of the air supply assembly and the insulation layer. Based on the shape of the middle partition 110, the air supply assembly is also arranged vertically. The air supply assembly includes an air duct housing 401, a first air duct component 402, a second air duct component 404, and a third air duct component 403. The air duct housing 401 has a heat exchange chamber 405 inside, in which a fan 406 and an evaporator 407 are arranged. The first air duct component 402 and the second air duct component 404 are connected to the top of the air duct housing 401, and the third air duct component 403 is connected to the side of the air duct housing 401.

[0044] Reference Figure 4 and Figure 8 As shown, it can be understood that the first air duct 402 is provided with a first air outlet 408 on the side facing the freezer compartment 104. The first air outlet 408 is connected to the freezer compartment 104 to input cold air into the freezer compartment 104.

[0045] Reference Figure 5 and Figure 7 As shown, it can be understood that the second air duct 404 is provided with a second air outlet 501 on the side facing the refrigerator compartment 105. The second air outlet 501 is connected to the refrigerator compartment 105 to input cold air into the refrigerator compartment 105.

[0046] When the refrigerator is running, the fan 406 drives the air to flow. The air flows through the evaporator 407 and absorbs heat by evaporating the refrigerant in the evaporator 407 to produce cold air. The cold air is input into the first air duct 402 and the second air duct 404, and then into the freezer compartment 104 from the first air outlet 408 and into the refrigerator compartment 105 from the second air outlet 501, so as to keep the refrigerator compartment 105 and the freezer compartment 104 at a stable low temperature for storing various items and food.

[0047] Reference Figure 4 and Figure 5As shown, it can be understood that the first air duct component 402 and the second air duct component 404 are arranged side by side and are located on the top of the air duct housing 401. Multiple first air outlets 408 are provided on the side of the first air duct component 402 facing the freezer compartment 104, and the multiple first air outlets 408 are distributed vertically at intervals. Multiple second air outlets 501 are provided on the side of the second air duct component 404 facing the refrigerator compartment 105, and the multiple second air outlets 501 are distributed vertically at intervals. The multiple first air outlets 408 and the multiple second air outlets 501 can be distributed at equal intervals or at non-equal intervals. The size and shape of the multiple first air outlets 408 and the multiple second air outlets 501 can be the same or different.

[0048] It is understood that, in addition to being located within the partition 110, the first air duct component 402 and the second air duct component 404 can also be located at the back or top of the freezer compartment 104, with the first air outlet 408 correspondingly located at the back or top of the freezer compartment 104. Similarly, the second air duct component 404 can be located at the back or top of the refrigerator compartment 105, with the first air outlet 408 correspondingly located at the back or top of the refrigerator compartment 105.

[0049] Reference Figure 4 As shown, the air supply assembly also includes a fan shroud 413, which is disposed in the heat exchange chamber 405 and covers the fan 406. A first outlet and a second outlet are provided at the upper end of the fan shroud 413. The first outlet communicates with the first air duct component 402, and the second outlet communicates with the second air duct component 404. When the fan 406 operates, it drives airflow, supplying cold air to the first air duct component 402 through the first outlet and simultaneously supplying cold air to the second air duct component 404 through the second outlet, thus achieving cold air diversion. The fan shroud 413 and the air duct housing 401 are typically detachably connected. Removing the fan shroud 413 allows for easy maintenance of the fan 406.

[0050] Reference Figure 4 As shown, it can be understood that a first damper 409 is provided at the inlet of the second air duct component 404. The first damper 409 can control the flow rate of cold air entering the second air duct component 404, thereby accurately controlling the temperature of the refrigerator compartment 105 according to the cooling capacity requirements of the refrigerator compartment 105 and reducing temperature fluctuations. The first damper 409 can also be used to open or close the second air duct component 404. For example, when the freezer compartment 104 requires a large amount of cooling capacity, the first damper 409 can be used to close the second air duct component 404 and allow cold air to enter the freezer compartment 104, which helps to quickly lower the temperature of the freezer compartment 104 and achieve the purpose of rapid freezing.

[0051] Reference Figure 5As shown, the third air duct component 403 is arranged on the side of the air duct housing 401. The third air duct component 403 is provided with a third air outlet 502, which connects to the variable temperature compartment 301. When the refrigerator is running, the fan 406 drives the air to flow. The air flows through the evaporator 407, where the refrigerant evaporates and absorbs heat to produce cold air. The cold air is input into the third air duct component 403 and then into the variable temperature compartment 301 from the third air outlet 502, so that the variable temperature compartment 301 maintains a stable low temperature for storing various items and food. A second damper 503 is provided at the inlet of the third air duct component 403. The second damper 503 controls the flow rate of cold air into the third air duct component 403 and opens or closes the third air duct component 403, thereby changing the temperature of the variable temperature compartment 301. The variable temperature compartment 301 has a large temperature adjustment range, which is convenient for users.

[0052] Reference Figure 5 As shown, it can be understood that in order to input cold air into the third air duct component 403, the air duct housing 401 is provided with a third outlet 504 and an air guide 505. The air guide 505 is fixedly connected to the air duct housing 401, and its two ends are respectively connected to the third air duct component 403 and the heat exchange chamber 405. The third air duct component 403 is provided with an air inlet connected to the third air outlet 502, so as to guide the air outlet at the third outlet 504 to the air inlet. Furthermore, a second damper 503 is installed at the air inlet, and the second damper 503 is used to control the flow rate of cold air input into the third air duct component 403, as well as to open or close the third air duct component 403.

[0053] It is understandable that the first air duct component 402, the second air duct component 404, and the third air duct component 403 are all connected to the heat exchange chamber 405 and are all supplied with cold air by the fan 406. By setting the first air damper 409 and the second air damper 503, the temperature of the refrigerator compartment 105, the freezer compartment 104, and the variable temperature compartment 301 can be controlled, and the temperature fluctuation range can be reduced. The first air damper 409 and the second air damper 503 have similar structures and are usually driven by a motor to rotate the valve plate of the damper to realize opening and closing and flow regulation. In addition, an air damper can also be set at the inlet of the first air duct component 402, and the refrigerator compartment 105, the freezer compartment 104, and the variable temperature compartment 301 can be controlled independently.

[0054] The refrigerator of this embodiment of the invention installs the first air duct component 402, the second air duct component 404, the fan 406, and the first evaporator 407 inside the middle partition 110, without occupying the depth space of the refrigerator. This facilitates increasing the depth of the refrigerator compartment 105, the freezer compartment 104, and the variable temperature compartment 301, thereby increasing storage space, accommodating more items, and improving usability. The fan 406 of the air supply assembly drives airflow, and the first evaporator 407 generates cold air. The cold air is then split and enters the first air duct component 402, the second air duct component 404, and the third air duct component 403. The cold air enters the freezer compartment 104 from the first air outlet 408 of the first air duct component 402, enters the refrigerator compartment 105 from the second air outlet 501 of the second air duct component 404, and enters the variable temperature compartment 301 from the third air outlet 502 of the third air duct component 403, thereby achieving cooling of the refrigerator compartment 105, the freezer compartment 104, and the variable temperature compartment 301 and maintaining a low-temperature environment.

[0055] Reference Figure 7 and Figure 8 As shown, it can be understood that the first air outlet 408 and the second air outlet 501 are located on the side of the middle partition 110, in the longitudinal direction, close to the middle of the refrigerator, rather than the back of the refrigerator. That is, the air outlet is located in the middle of the refrigerator compartment 105 and the freezer compartment 104, which reduces the air supply distance and helps to improve the temperature uniformity of the refrigerator compartment 105 and the freezer compartment 104, which is beneficial for storing various items.

[0056] Reference Figure 5 As shown, it can be understood that the third air duct 403 is arranged along the longitudinal direction of the variable temperature chamber 301, that is, along the front-to-back direction in the figure. The third air outlet 502 is located at the end of the third air duct 403 near the refrigerator door, and the air inlet is located at the end of the third air duct 403 away from the refrigerator door. The cold air blown out from the third air outlet 502 is close to the refrigerator door, which is conducive to the diffusion of cold air along the front-to-back direction, making the temperature in the variable temperature chamber 301 more uniform. In addition, the cold air will also lower the temperature of the third air duct 403. The low temperature of the third air duct 403 can help cool the air in the variable temperature chamber 301. The third air duct 403 has a large surface area, which helps to improve the uniformity of temperature distribution in the variable temperature chamber 301.

[0057] It is understood that in some other embodiments, the third air outlet 502 may be located at the back, top or left side wall of the variable temperature chamber 301, and correspondingly, the third air duct 403 may be located at the back, top or left side wall of the variable temperature chamber 301.

[0058] Reference Figure 5As shown, it can be understood that in order to deliver cold air, an air supply duct 506 is provided on the third air duct 403. The air supply duct 506 serves as a channel for the flow of cold air. One end of the air supply duct 506 is connected to the air inlet, and the other end of the air supply duct 506 is connected to the third air outlet 502, so as to deliver cold air from the heat exchange chamber 405 to the variable temperature chamber 301. The third air outlet 502 can be arranged at various positions in the variable temperature chamber 301, which helps to improve the temperature uniformity of the variable temperature chamber 301. The air supply duct 506 extends to the third air outlet 502 to meet the needs of cold air delivery.

[0059] Understandably, considering that the third air duct component 403 is fixed to the top wall of the variable temperature chamber 301, the air supply duct 506 can be set on the top surface of the third air duct component 403. The third air duct component 403 fits against the top wall of the variable temperature chamber 301, and the top wall of the variable temperature chamber 301 seals the air supply duct 506 to prevent cold air leakage. The air supply duct 506 is an open groove, simplifying the structure of the third air duct component 403 and reducing processing costs.

[0060] Of course, the air supply duct 506 can also be placed inside the third air duct component 403 to meet the air supply requirements. In addition, the air supply duct 506 can be designed with a large volume and multiple third air outlets 502 can be provided. The multiple third air outlets 502 are arranged around the air supply duct 506 to achieve multi-way air supply, which is beneficial to improve the temperature uniformity in the variable temperature chamber 301.

[0061] In addition, a horizontal partition 302 is provided between the cold storage compartment 105 and the variable temperature compartment 301. The horizontal partition 302 serves as a support and heat insulation. A third air duct component 403 can also be installed inside the horizontal partition 302. A through hole is opened in the variable temperature compartment 301 to connect with the third air outlet 502, which can realize the delivery of cold air. Alternatively, the third air duct component 403 can serve as part of the inner wall of the variable temperature compartment 301, and the third air outlet 502 can be directly connected to the variable temperature compartment 301.

[0062] Reference Figure 4 As shown, it can be understood that in the heat exchange chamber 405, the evaporator 407 is located below the fan 406, and a return air chamber 410 is provided below the evaporator 407. The return air drawn in from the refrigerator compartment 105, the freezer compartment 104 and the variable temperature compartment 301 first enters the return air chamber 410, and then passes through the evaporator 407 to produce cold air. The cold air is then delivered by the fan 406. The return air chamber 410 has an opening adapted to the evaporator 407, which helps the return air to diffuse and contact the entire evaporator 407, thereby improving the heat exchange efficiency.

[0063] Reference Figure 4 and Figure 8As shown, it can be understood that a first return air inlet 801 is provided at the lower end of the air duct housing 401. The first return air inlet 801 is arranged on the side wall of the freezer compartment 104 to connect the return air chamber 410 and the freezer compartment 104. When the refrigerator is running, the fan 406 of the air supply assembly drives the air flow, draws in the air in the freezer compartment 104 from the first return air inlet 801, and produces cold air through the first evaporator 407, and then sends the cold air into the freezer compartment 104 for air circulation.

[0064] Understandably, the duct housing 401 can be equipped with side plates. These side plates are connected to the side of the duct housing 401 and are detachable. The side plates also form part of the side wall of the freezer compartment 104. Multiple straight vent holes are provided at the lower end of the side plates. These vent holes are closely arranged to form the first return air inlet 801. The first return air inlet 801 has a large fluid area to allow airflow and reduce flow resistance. Removing the side plates allows for inspection and maintenance of the first evaporator 407, facilitating operation.

[0065] Reference Figures 3 to 6 As shown, it can be understood that the refrigerator in this embodiment of the invention also includes a first return air duct 411, which is disposed inside the second door 103. The air duct housing 401 is provided with a second return air inlet 303 communicating with the return air chamber 410. The second return air inlet 303 is arranged on the inner wall of the variable temperature compartment 301, so that air can flow back to the heat exchange chamber 405. The second return air inlet 303 is located at the lower end of the air duct housing 401. The first return air duct 411 is provided with a first opening 304 and a second opening 305, which are connected. The first opening 304 is located above the second opening 305 and communicates with the refrigerator compartment 105. The second opening 305 communicates with the second return air inlet 303. When the refrigerator is running, the fan 406 of the air supply assembly drives airflow. Air in the refrigerator compartment 105 is drawn into the return air chamber 410 through the first opening 304, the second opening 305, and the second return air vent 303. Cold air is then produced by the evaporator 407 and sent back into the refrigerator compartment 105 through the second air outlet 501, thus circulating the air. By placing the first return air duct 411 inside the second door 103, the return air assembly, originally located at the back of the cabinet 101, is moved to the second door 103 using the return air inside the door. This reduces the installation space required at the back of the cabinet 101, increases the drawer depth, and increases the usable volume.

[0066] Reference Figures 4 to 8 As shown, it can be understood that the second air duct 404 is located on the side of the first air duct 402 away from the second door 103. The distance between the first return air duct 411 and the second air duct 404 is relatively large, which is conducive to the flow of cold air in the refrigerator compartment 105, so that the cold air can come into contact with the items stored in the refrigerator compartment 105 and improve the temperature uniformity inside the refrigerator compartment 105.

[0067] Reference Figure 4 and Figure 5 As shown, it can be understood that the first return air duct 411 also has a third opening 306, which connects to the variable temperature compartment 301 and is also connected to the second return air inlet 303. In other words, the first return air duct 411 is embedded inside the second door 103, and the first opening 304 and the third opening 306 are located on the upper and lower sides of the third air duct component 403, respectively. Under the action of the fan 406, the air from the refrigerator compartment 105 and the variable temperature compartment 301 can be collected through the first return air duct 411 and enter the return air cavity 410 for air circulation. The refrigerator compartment 105 and the variable temperature compartment 301 share a single return air inlet, which saves more space, reduces the installation space required for the return air inlet, and improves space utilization.

[0068] Understandably, although the third air outlet 502 and the third opening 306 are both located on the front side of the variable temperature chamber 301, the air outlet 502 is directed towards the rear side of the variable temperature chamber 301, causing most of the airflow to flow towards the rear side of the variable temperature chamber 301 to cool the food before returning to the third opening 306 and entering the first return air duct 411.

[0069] Reference Figure 4 and Figure 5 As shown, the first return air duct 411 includes a straight section 414, a first bend 415, a second bend 416, and a third bend 417. The first bend 415, second bend 416, and third bend 417 are all connected to the straight section 414. Specifically, the first bend 415 is located at the upper end of the straight section 414 and bends towards the cold storage compartment 105, with a first opening 304 located thereon. The second bend 416 is located on the left side of the straight section 414 and bends towards the variable temperature compartment 301, with a second opening 305 located thereon. The third bend 417 is located at the lower end of the straight section 414 and bends towards the variable temperature compartment 301, with a third opening 306 located thereon. The straight pipe section 414 is relatively long and can be installed inside the insulation layer of the second door body 103 to reduce heat loss. The first bend section 415, the second bend section 416, and the third bend section 417 are relatively short and are mainly used to pass through the insulation layer of the second door body 103, so that the first opening 304, the second opening 305, and the third opening 306 can communicate with the corresponding structures.

[0070] Reference Figures 3 to 7As shown, it can be understood that a second return air duct 412 is provided at the lower end of the air duct housing 401. The second return air duct 412 is used to pass through the insulation layer of the partition 110. One end of the second return air duct 412 extends to the side wall of the refrigerator compartment 105 to connect to the refrigerator compartment 105, and the other end of the second return air duct 412 connects to the return air cavity 410. The second return air outlet 303 is provided on the second return air duct 412. The end face of the second return air duct 412 facing the second door 103 is flush with the side of the partition 110, and the end of the first return air duct 411 facing the variable temperature compartment 301 is connected to the second return air duct 412, thereby making the extension length of the first return air duct 411 small and reducing the air leakage between the first return air duct 411 and the second return air duct 412. A sealing ring can be installed between the first return air duct 411 and the second return air duct 412 to further improve the sealing performance and reduce air leakage. For example, a sealing ring can be installed at the end face of the second return air duct 412. When the second door 103 is closed, the end face of the first return air duct 411 abuts against the sealing ring. When the airflow flows from the first return air duct 411 to the second return air duct 412, it is not easy to leak between the first return air duct 411 and the second return air duct 412.

[0071] It is understood that in some other embodiments, a third return air duct can also be provided inside the first door 102. The function of the third return air duct is similar to that of the first return air duct 411, that is, to realize the return air inside the door, reduce the installation space required at the back of the box 101, increase the depth of the drawer, and increase the usable volume.

[0072] It should be noted that the air outlet and return air directions in the above embodiments can be set in opposite directions. For example, the return air cavity 410 in the above embodiments is actually a ventilation cavity, and therefore can also be used as an outlet cavity. Similarly, the first return air duct 411 and the second return air duct 412 are ventilation ducts, and can also be used as outlet ducts. Correspondingly, the first air outlet 408, the second air outlet 501, and the third air outlet 502 are actually air vents, and therefore can also be used as return air vents. The first return air vent 801 and the second return air vent 303 are actually ventilation vents, and can also be used as outlet vents, thereby realizing air circulation with air outlets from the door and return air from the partition 110.

[0073] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A refrigerator, characterized in that, include: The box body has a central partition, and a first compartment and a second compartment are formed inside the box body. The first compartment and the second compartment are located on the left and right sides of the central partition, respectively. The first door is connected to the housing and is used to open or close the first compartment; The second door is connected to the housing and is used to open or close the second compartment; An air supply assembly includes a duct housing, a first duct component, and a second duct component. The duct housing has a heat exchange chamber and a ventilation chamber that are connected to each other. The duct housing is connected to the first duct component and the second duct component respectively. The first duct component has a first air outlet that connects to the first chamber, and the second duct component has a second air outlet that connects to the second chamber. The duct housing is located inside the partition plate, and the duct housing has a second ventilation outlet that connects to the ventilation chamber. The evaporator is located inside the heat exchange chamber; A fan supplies air to the first air duct component and the second air duct component; A first ventilation duct is provided inside the second door. The first ventilation duct has a first opening and a second opening that are connected to each other. The first opening is connected to the second room, and the second opening is connected to the second ventilation opening. The lower end of the air duct shell is provided with a second ventilation pipe, the second ventilation opening is provided in the second ventilation pipe, the second ventilation pipe passes through the insulation layer on the side of the partition away from the first compartment, and the end face of the second ventilation pipe facing the second door is flush with the side of the partition.

2. The refrigerator according to claim 1, characterized in that, The first air duct component and the second air duct component are located inside the partition plate.

3. The refrigerator according to claim 1, characterized in that, The first air duct component and the second air duct component are arranged side by side on the top of the air duct housing. The first air duct component is provided with a plurality of first air outlets, which are distributed vertically at intervals. The second air duct component is provided with a plurality of second air outlets, which are distributed vertically at intervals.

4. The refrigerator according to claim 3, characterized in that, The second air duct component is located on the side of the first air duct component away from the second door body.

5. The refrigerator according to claim 1, characterized in that, A third compartment is formed inside the housing. The third compartment and the second compartment are located on the same side of the partition. The air supply assembly also includes a third air duct component that communicates with the air duct housing. The third air duct component is provided with a third air outlet that communicates with the third compartment. The third air duct component is located between the third compartment and the second compartment and outside the partition.

6. The refrigerator according to claim 5, characterized in that, The first ventilation duct has a third opening that connects to the third chamber, and the third opening is connected to the second ventilation opening.

7. The refrigerator according to claim 5, characterized in that, The air duct housing is provided with a third outlet and an air guide section. The third air duct component is provided with an air inlet that connects to the third air outlet. The air guide section is used to guide the air from the third outlet to the air inlet.

8. The refrigerator according to claim 7, characterized in that, The second air vent and the air inlet are located at the front and rear ends of the second air duct component, respectively.

9. The refrigerator according to claim 1, characterized in that, The refrigerator also includes a fan cover, which is located inside the heat exchange chamber and covers the fan. The fan cover has a first outlet and a second outlet, the first outlet being connected to the first air duct component and the second outlet being connected to the second air duct component.

10. The refrigerator according to claim 1, characterized in that, The lower end of the air duct housing is provided with a first ventilation opening that connects to the ventilation cavity, and the first ventilation opening is located on the side wall of the first compartment.

11. The refrigerator according to claim 1, characterized in that, The air duct housing is provided with a detachable side plate to open or close the heat exchange chamber, and the side plate is part of the side wall of the first chamber.

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