Refrigerator quick-freezing special area, refrigerator freezing chamber and refrigerator

Abstract

The invention provides a refrigerator quick-freezing special area, a refrigerator freezing chamber and a refrigerator. The refrigerator quick-freezing special area comprises a storage container and a cover plate. The cover plate covers the storage container, and a high-rotating-speed fan is arranged on the cover plate. The freezing chamber of the refrigerator comprises the special quick-freezing area of the refrigerator and a freezing chamber body, and further comprises a first air outlet, a second air outlet and an air duct. The high-rotating-speed draught fan is used for improving the heat exchange efficiency between the food materials and the cooling capacity and between the cooling capacity and the heat conduction material, and rapid freezing of the food materials is achieved. Meanwhile, the air channel design is combined with the high-rotating-speed fan, the cold energy utilization efficiency is improved, and the heat exchange efficiency between the food materials and the cold air, between the cold air and the cold guide disc and between the food materials and the cold guide disc is improved.

Description

Technical Field

[0001] The present application relates to the technical field of household appliances, and more specifically to a quick-freezing area of ​​a refrigerator, a freezing compartment of a refrigerator, and a refrigerator. Background Art

[0002] The freezing temperature of refrigerators (-18°C) can greatly reduce bacterial activity, allowing food to be stored for a longer time without spoiling. However, its defects are quite obvious. Ordinary freezers use air as a medium for heat transfer, and the freezing temperature of existing refrigerators is relatively high (most can reach -24°C at the lowest), which leads to slow cooling of food. Extracellular ice forms first, and intracellular water continuously migrates to the outside of the cell. The ice crystals formed are large in size, and the cell structure is destroyed, resulting in nutrient loss. According to theoretical analysis, the shorter the time that the water in the food passes through the maximum ice crystal zone, the more ice crystals are produced, and the more rounded the shape is, which is more conducive to the preservation of food nutrition.

[0003] At present, quick freezing in refrigerators is mostly achieved by lowering storage temperature (refrigerant and compressor optimization), which is costly and has unsatisfactory effects. Taking -40℃ as an example, compared with the conventional -18℃, its freezing rate is only increased by 1-2 times, and the actual preservation effect is not significantly different. Summary of the invention

[0004] In order to solve the problem that quick freezing in the above-mentioned refrigerators is mostly achieved by lower storage temperature, which has high cost and unsatisfactory effect, the present application provides a refrigerator quick freezing area in the first aspect, including: a storage container and a cover plate; the cover plate covers the storage container, and a high-speed fan is provided on the cover plate.

[0005] A second aspect of the present application provides a refrigerator freezer compartment, comprising the above-mentioned refrigerator quick-freezing area and freezer compartment body, and further comprising: a first air outlet, a second air outlet and an air duct;

[0006] The quick-freezing area of ​​the refrigerator is arranged inside the freezing compartment body, the first air outlet is arranged at the top of the freezing compartment body, and the second air outlet is arranged at the bottom of the freezing compartment body;

[0007] The air duct is arranged between the first air outlet and the high-speed fan, one end of the air duct is connected to the first air outlet, and the other end is connected to the high-speed fan;

[0008] The high-speed fan has a fan air inlet side and a fan air outlet side, the fan air inlet side is communicated with the air duct, and the fan air outlet side is communicated with the storage container.

[0009] In a feasible implementation, the storage container is provided with a dedicated air return port, and the dedicated air return port is arranged at any position of the bottom, side or top of the storage container.

[0010] In a feasible implementation, it further includes: a snap-on assembly; the snap-on assembly is disposed on the cover plate, and the snap-on assembly is used to snap-on with the storage container.

[0011] In a feasible implementation, a metal cooling plate is provided at the bottom of the storage container, and the material of the metal cooling plate is any one of aluminum, iron, and copper.

[0012] In a feasible implementation, an air inlet and an air return port are provided at the bottom of the storage container, and the air inlet and the air return port are respectively close to two ends of the metal cold conduction plate;

[0013] There is a gap between the metal cold conduction plate and the bottom of the storage container, and an air duct flow channel is formed between the air inlet, the air return port and the gap.

[0014] In a feasible implementation, the ventilation area of ​​the return air port is greater than or equal to the ventilation area of ​​the air inlet port.

[0015] In a feasible implementation, the ventilation area on the air inlet side of the fan is greater than or equal to the air outlet area of ​​the first air outlet, and the ventilation area on the air outlet side of the fan is greater than or equal to the ventilation area on the air inlet side of the fan.

[0016] A third aspect of the present application provides a refrigerator, comprising a refrigerator freezer compartment and a freezing air duct as described in any one of the above items, wherein the freezing air duct is connected to the first air outlet and the second air outlet.

[0017] It can be seen from the above content that the present application provides a refrigerator quick-freezing area, a refrigerator freezer compartment and a refrigerator, wherein the refrigerator quick-freezing area includes: a storage container and a cover plate; the cover plate covers the storage container, and a high-speed fan is provided on the cover plate. The refrigerator freezer compartment, including the above-mentioned refrigerator quick-freezing area and the freezer compartment body, also includes: a first air outlet, a second air outlet and an air duct. The present application utilizes a high-speed fan to improve the heat exchange efficiency between food and cold, and between cold and heat-conducting materials, so as to achieve rapid freezing of food. At the same time, the air duct design is combined with a high-speed fan to improve the utilization efficiency of cold, and improve the heat exchange efficiency between food and cold air, between cold air and cold guide plate, and between food and cold guide plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings herein are incorporated into and constitute a part of the specification, illustrate embodiments consistent with the implementation of the present invention, and together with the specification are used to explain the principles of the embodiments of the present invention. Obviously, the accompanying drawings described below are only some embodiments of the implementation of the present invention, and for ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without creative work.

[0019] Figure 1It is a schematic diagram of the structure of a refrigerator quick-freezing area, a refrigerator freezer compartment and a refrigerator shown in an embodiment of the present application.

[0020] Description of Figure Numbers:

[0021] 1-freezer compartment body; 2-first air outlet; 3-second air outlet; 4-quick-freezing area of ​​refrigerator; 5-storage container; 6-cover; 7-air duct; 8-high-speed fan; 9-fan air inlet side; 10-fan air outlet side; 11-special area return air outlet; 12-metal cold plate; 13-air inlet; 14-return air outlet; 15-air duct flow channel. DETAILED DESCRIPTION

[0022] Example embodiments will now be described more fully with reference to the accompanying drawings. However, example embodiments can be implemented in a variety of forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that the embodiments of the present invention will be more comprehensive and complete and fully convey the concepts of the example embodiments to those skilled in the art. The described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. In the following description, many specific details are provided to provide a full understanding of the implementation of the embodiments of the present invention.

[0023] The existing ordinary freezer uses air as the medium for heat transfer, and the refrigerator freezing temperature is relatively high, which leads to slow cooling of food. Extracellular ice is formed first, and the intracellular water continues to migrate to the outside of the cell. The ice crystals formed are large in size, and the cell structure is destroyed, resulting in nutrient loss. According to theoretical analysis, the shorter the time the water in the food passes through the maximum ice crystal zone, the more ice crystals are produced, and the shape is more rounded, which is more conducive to the preservation of food nutrition. At present, quick freezing in refrigerators is mostly achieved through lower storage temperature refrigerants and compressor optimization methods, which has high implementation costs and unsatisfactory results.

[0024] In order to solve the above problems, the first aspect of the embodiment of the present application provides a water dispenser ice tank, referring to Figure 1 As shown, it includes: a storage container 5 and a cover plate 6; the cover plate 6 covers the storage container 5, and a high-speed fan 8 is provided on the cover plate 6.

[0025] The storage container 5 is responsible for directly accommodating the food to be frozen. The material of the storage container 5 has good thermal conductivity, sealing and low temperature resistance to ensure that the food can be cooled evenly and quickly during the quick freezing process, while preventing the influence of outside air and moisture on the quick freezing environment. The cover plate 6 covers the storage container 5 to play the role of sealing and heat preservation. In addition to the basic sealing function, the cover plate 6 is also used in conjunction with the high-speed fan 8 to form an efficient air circulation system.

[0026] The high-speed fan 8 is mounted on the cover plate 6, and generates a strong airflow by rotating at a high speed, accelerating the flow of air inside the storage container 5. The heat transfer efficiency is greatly improved by forced convection, so that the food can reach a lower temperature faster and shorten the time to pass through the maximum ice crystal zone.

[0027] In the embodiment of the present application, the forced convection of air driven by the high-speed fan 8 significantly accelerates the temperature drop rate inside the storage container 5, shortens the time for the food to go from room temperature to quick-frozen state, and reduces the time the food stays in the unfavorable temperature range (i.e., the maximum ice crystal zone). The rapid cooling process causes the moisture inside the food to form more, smaller, and rounded ice crystals in a short period of time, reducing the formation of large ice crystals caused by long-term slow cooling, thereby protecting the cell structure and reducing nutritional losses.

[0028] Compared with the traditional method of lowering the storage temperature or using higher performance refrigerants and compressors, the embodiments of the present application achieve efficient quick freezing through physical improvements, while reducing the requirements for hardware performance and overall manufacturing costs, and show a more ideal quick freezing effect in actual applications.

[0029] The second aspect of the present application provides a refrigerator freezer compartment, Figure 1 As shown, the refrigerator includes the quick-freezing zone 4 and the freezing chamber body 1 in the above embodiment, and also includes: a first air outlet 2, a second air outlet 3 and an air duct 7; the refrigerator quick-freezing zone is arranged inside the freezing chamber body 1, the first air outlet 2 is arranged at the top of the freezing chamber body 1, and the second air outlet 3 is arranged at the bottom of the freezing chamber body 1.

[0030] The freezer compartment body 1 provides enough space to store food. Its design needs to consider thermal insulation performance, sealing, and user access and operation. The quick freezing area 4 of the refrigerator integrates a storage container 5 and a high-speed fan 8, and is an area in the freezer compartment specifically used for quick freezing of food. Among them, the first air outlet 2 is arranged at the top of the freezer compartment body 1. As one of the outlets of the air circulation system, the first air outlet 2 is responsible for discharging the air accelerated and cooled by the high-speed fan, and participates in the air circulation of the entire freezer compartment. The second air outlet 3 is arranged at the bottom of the freezer compartment body 1, and works with the first air outlet 2 to form an upper and lower air flow path, which helps to achieve uniform distribution of temperature in the freezer compartment.

[0031] The air duct 7 is arranged between the first air outlet 2 and the high-speed fan 8, one end of the air duct 7 is connected to the first air outlet 2, and the other end is connected to the high-speed fan 8; the high-speed fan 8 has a fan air inlet side 9 and a fan air outlet side 10, the fan air inlet side 9 is connected to the air duct 7, and the fan air outlet side 10 is connected to the storage container 5.

[0032] Specifically, the air duct 7 serves as a passage for air flow, ensuring that the air sucked in by the high-speed fan 8 can flow smoothly to the first air outlet, forming an effective air circulation. The fan air inlet side 9 is connected to the first air outlet 2 through the air duct 7, and the fan air outlet side 10 is connected to the storage container 5. This structure enables the high-speed rotation of the high-speed fan 8 to generate strong suction and blowing forces, driving the air to circulate quickly in the freezer compartment, accelerating the transfer of heat and the cooling of food.

[0033] In this embodiment, the first air outlet 2, the second air outlet 3 and the air duct 7 cooperate to form an air circulation path inside and outside the freezer. The high-speed fan 8, as a power source, accelerates the flow of air, improves the heat transfer efficiency, makes the temperature inside the freezer more uniform, and reduces temperature dead spots. The fast and uniform air flow enables the food to reach the required freezing temperature faster, shortens the time to pass through the maximum ice crystal zone, and reduces nutritional loss and damage to the cell structure. The optimized air flow path and efficient heat transfer further reduce the overall energy consumption of the refrigerator.

[0034] In some embodiments of the present application, a dedicated air return port 11 is provided on the storage container 5 , and the dedicated air return port 11 is provided at any position of the bottom, side or top of the storage container 5 .

[0035] The special zone return air vent 11 is arranged at any position of the bottom, side or top of the storage container 5, and its main function is to form an air circulation loop inside the freezing zone. Through the special zone return air vent 11, the hot air in the quick freezing zone 4 of the refrigerator can be sucked in by the high-speed fan 8, and after being cooled, it is blown to the inside of the storage container 5 through the fan outlet side 10, thereby realizing rapid heat exchange and rapid freezing of food.

[0036] The setting of the special zone return air vent 11 optimizes the air flow path in the quick freezing zone 4 of the refrigerator, improves the heat transfer efficiency, and ensures that the food can be cooled evenly and quickly. The freezing efficiency is improved, and the time for the food to reach the required freezing temperature is shortened. The difference in the freezing effect of the food caused by uneven temperature is reduced, and the preservation quality of the food is improved.

[0037] In some embodiments of the present application, it also includes: a snap-on assembly; the snap-on assembly is arranged on the cover plate 6, and the snap-on assembly is used to snap-on with the storage container 5.

[0038] The clamping assembly is arranged on the cover plate 6 and is used to clamp with the storage container 5, so as to ensure that the cover plate 6 can cover the storage container 5 tightly to form a closed space. The arrangement of the clamping assembly improves the sealing performance of the freezing area and prevents the intrusion of outside air and moisture, thereby ensuring the stability of the freezing effect and the freshness of the food.

[0039] It can be understood that the provision of the snap-fit ​​assembly improves the sealing and heat preservation performance of the quick-freezing zone 4 of the refrigerator, thereby reducing the risk of decreased freezing effect and food deterioration due to external factors.

[0040] In some embodiments of the present application, a metal cooling plate 12 is provided at the bottom of the storage container 5 , and the material of the metal cooling plate 12 is any one of aluminum, iron, and copper.

[0041] The metal cold conduction plate 12 is arranged at the bottom of the storage container 5, and its material is a metal with good thermal conductivity such as aluminum, iron, copper, etc. The metal cold conduction plate 12 can quickly absorb the heat at the bottom of the storage container 5, and transfer the heat to the surrounding air or refrigerant by heat conduction, thereby accelerating the cooling process of the food. The provision of the metal cold conduction plate 12 improves the thermal conductivity of the bottom of the storage container 5, accelerates the heat transfer and the cooling speed of the food.

[0042] This embodiment further improves the freezing efficiency by providing the metal cold plate 12, shortens the time for the food to reach the required freezing temperature, and reduces energy consumption, because a faster cooling speed means that the refrigerator can reach the set temperature faster and reduce the running time.

[0043] In some embodiments of the present application, an air inlet 13 and an air return outlet 14 are provided at the bottom of the storage container 5, and the air inlet 13 and the air return outlet 14 are respectively close to the two ends of the metal cold conduction plate 12; there is a gap between the metal cold conduction plate 12 and the bottom of the storage container 5, and an air duct flow channel 15 is formed between the air inlet 13, the air return outlet 14 and the gap.

[0044] The air inlet 13 and the air return port 14 are respectively arranged at the two ends of the bottom of the storage container 5 near the metal cold plate 12, and form an air duct flow channel 15 with the gap between the metal cold plate 12 and the bottom of the storage container 5. As a channel for air flow, the air duct flow channel 15 can guide hot air to enter from the air inlet 13, and after being cooled by the metal cold plate 12, it flows out from the air return port 14 to form a closed air circulation loop. The arrangement of the air inlet 13, the air return port 14 and the air duct flow channel 15 optimizes the air flow path inside the storage container 5, realizes the uniform distribution of the temperature inside the storage container 5, and reduces the difference in the freezing effect of food caused by uneven temperature.

[0045] Specifically, the cold air first enters through the air inlet 13 provided at the bottom of the storage container 5. The air inlet is close to one end of the metal cold plate 12, so that the cold air can directly contact the heat absorbing surface of the metal cold plate 12.

[0046] Secondly, the cold air entering the storage container 5 flows in the gap between the metal cold plate 12 and the bottom of the storage container 5, and this gap constitutes the duct flow channel 15. The duct flow channel 15 serves as a channel for air flow, guiding the cold air to flow along the length direction of the metal cold plate 12. The cold air flowing in the duct flow channel 15 exchanges heat with the metal cold plate 12. Since the metal cold plate 12 has good thermal conductivity, it can be quickly affected by the temperature of the cold air and accelerate the cooling. Finally, the cold air that has undergone heat exchange with the metal cold plate 12 flows out from the return air port 14. The return air port 14 is located at the other end of the bottom of the storage container 5 close to the metal cold plate 12, opposite to the air inlet 13. In this way, the cold air forms a closed circulation loop in the duct flow channel 15, enters from the air inlet 13, and flows out from the return air port 14 after heat exchange.

[0047] Due to the efficient heat conduction performance of the metal cold plate 12, the heat in the cold air can be quickly absorbed, which causes the air temperature inside the storage container 5 to drop rapidly, thereby achieving rapid freezing of the food. The air inlet 13 and the return air outlet 14 are respectively arranged at both ends of the metal cold plate 12, forming a closed air circulation loop. This design ensures that the air inside the storage container 5 can flow evenly, avoiding the problems of temperature dead corners and uneven temperatures. Therefore, the food can be cooled evenly and quickly inside the storage container 5. Since the air forms a closed circulation loop in the air duct flow channel 15, the heat exchange with the outside air is reduced. This reduces the energy consumption of the refrigerator and improves the freezing efficiency. At the same time, the efficient heat conduction performance of the metal cold plate 12 also reduces the workload of the refrigeration system and extends its service life.

[0048] In summary, the arrangement of the air inlet 13, the air return port 14 and the air duct 15 optimizes the air flow path inside the storage container 5, and achieves uniform distribution of temperature inside the storage container 5 and a rapid cooling effect. This design not only improves the freezing quality and preservation effect of food, but also reduces the energy consumption of the refrigerator and the workload of the refrigeration system.

[0049] In some embodiments of the present application, the ventilation area of ​​the return air vent 14 is greater than or equal to the ventilation area of ​​the air inlet 13. This ensures that sufficient air flow passes through the air duct flow channel 15, thereby achieving more efficient heat transfer. By adjusting the ventilation areas of the return air vent 14 and the air inlet 13, the speed and efficiency of air flow are optimized, and the heat transfer speed is increased.

[0050] In some embodiments of the present application, the ventilation area of ​​the fan air inlet side 9 is greater than or equal to the air outlet area of ​​the first air outlet 2, and the ventilation area of ​​the fan air outlet side 10 is greater than or equal to the ventilation area of ​​the fan air inlet side 9. This ensures that the high-speed fan 8 can inhale enough air when working, and after efficient compression and acceleration, blow it from the fan air outlet side 10 to the inside of the storage container 5 with a larger flow rate and speed.

[0051] The third aspect of the embodiment of the present application provides a refrigerator, comprising a refrigerator freezer compartment and a freezing air duct as in any one of the above embodiments, wherein the freezing air duct is connected to the first air outlet 2 and the second air outlet 3. The freezing air duct serves as a transmission channel for cold air inside the refrigerator, and is responsible for evenly distributing the cold air generated by the refrigeration system to every corner of the refrigerator. The freezing air duct is connected to the first air outlet 2 and the second air outlet 3 to ensure that the cold air can flow smoothly and form an effective freezing cycle.

[0052] As can be seen from the above content, the refrigerator provided in the embodiment of the present application has a refrigerator freezer compartment, and the refrigerator freezer compartment has a refrigerator quick freezing area 4, and the refrigerator quick freezing area 4 is provided with a storage container 5 and a cover plate 6, and a high-speed fan 8 is provided on the cover plate 6. The refrigerator quick freezing area 4 is arranged inside the freezer compartment body 1, the first air outlet 2 is arranged at the top of the freezer compartment body 1, and the second air outlet 3 is arranged at the bottom of the freezer compartment body 1. The freezing air duct of the refrigerator is connected with the first air outlet 2 and the second air outlet 3. The air duct 7 is arranged between the first air outlet 2 and the high-speed fan 8, one end of the air duct 7 is connected with the first air outlet 2, and the other end is connected with the high-speed fan 8; the fan air inlet side 9 is connected with the air duct 7, and the fan air outlet side 10 is connected with the storage container 5. A dedicated return air port 11 is provided on the storage container 5, and an air inlet 13 and an air return port 14 are provided at the bottom of the storage container 5; there is a gap between the metal cold plate 12 and the bottom of the storage container 5, and an air duct flow channel 15 is formed between the air inlet 13, the air return port 14 and the gap.

[0053] The present application provides a refrigerator with a refrigerator-freezer compartment, in which cold air is generated by a refrigeration system inside the refrigerator, enters the first air outlet through the freezing air duct, and then enters the air duct. The air duct guides the cold air to the fan air inlet side of the high-speed fan. After the high-speed fan is started, the cold air in the air duct is sucked in through its fan air inlet side. The cold air is accelerated by the high-speed fan and blown toward the storage container through the fan air outlet side. The cold air is evenly distributed in the storage container and exchanges heat with the food. The cold air absorbs heat from the food in the storage container, thereby reducing the temperature of the food.

[0054] The cold air that has absorbed the heat becomes hot air and returns to the refrigerator's refrigeration system through the dedicated return air vent. The hot air returned to the refrigeration system is cooled and becomes cold air again. The cold air re-enters the air duct through the first air outlet and repeats the above cold air acceleration, distribution, heat absorption and discharge process.

[0055] In addition to the cold air returned through the dedicated zone return air outlet, some cold air is sent to the second air outlet through the freezing air duct. The second air outlet serves as a supplementary channel for cold air output, further accelerating the flow and circulation of cold air. And enters through the air inlet at the bottom of the storage container. This part of cold air forms a duct flow channel in the gap between the metal cold plate and the bottom of the storage container, and after heat exchange with the metal cold plate, it returns to the refrigeration system through the return air outlet. This design further improves the utilization efficiency of cold air and the quick freezing effect.

[0056] Those skilled in the art will readily appreciate other embodiments of the present disclosure after considering the specification and practicing the disclosure herein. This application is intended to cover any variations, uses or adaptations of the present disclosure, which follow the general principles of the present disclosure and include common knowledge or customary techniques in the art that are not disclosed in the present disclosure. The specification and examples are to be considered exemplary only, and the true scope and spirit of the present disclosure are indicated by the following claims.

Claims

1. Refrigerator quick freezing area, characterized by: include: A storage container (5) and a cover plate (6); The cover plate (6) covers the storage container (5), and a high-speed fan (8) is provided on the cover plate (6).

2. A refrigerator freezer compartment, characterized in that: The refrigerator comprises a quick-freezing zone (4) and a freezing compartment body (1) as claimed in claim 1, and further comprises: a first air outlet (2), a second air outlet (3) and an air duct (7); The refrigerator quick-freezing zone is arranged inside the freezing compartment body (1), the first air outlet (2) is arranged at the top of the freezing compartment body (1), and the second air outlet (3) is arranged at the bottom of the freezing compartment body (1); The air duct (7) is arranged between the first air outlet (2) and the high-speed fan (8); one end of the air duct (7) is connected to the first air outlet (2), and the other end is connected to the high-speed fan (8); The high-speed fan (8) has a fan air inlet side (9) and a fan air outlet side (10), the fan air inlet side (9) is connected to the air duct (7), and the fan air outlet side (10) is connected to the storage container (5).

3. The refrigerator freezer compartment according to claim 2, characterized in that: The storage container (5) is provided with a dedicated air return port (11), and the dedicated air return port (11) is arranged at any position of the bottom, side or top of the storage container (5).

4. The refrigerator freezer compartment according to claim 2, characterized in that: Also includes: A snap-on assembly; the snap-on assembly is arranged on the cover plate (6), and the snap-on assembly is used to snap-on with the storage container (5).

5. The refrigerator freezer compartment according to claim 2, characterized in that: A metal cooling plate (12) is provided at the bottom of the storage container (5); the metal cooling plate (12) is made of any one of aluminum, iron, and copper.

6. The refrigerator freezer compartment according to claim 5, characterized in that: The storage container (5) is provided with an air inlet (13) and an air return port (14) at the bottom, and the air inlet (13) and the air return port (14) are respectively close to two ends of the metal cold conduction plate (12); There is a gap between the metal cold conduction plate (12) and the bottom of the storage container (5), and an air duct flow channel (15) is formed between the air inlet (13), the air return port (14) and the gap.

7. The refrigerator freezer compartment according to claim 6, characterized in that: The ventilation area of ​​the return air port (14) is greater than or equal to the ventilation area of ​​the air inlet (13).

8. The refrigerator freezer compartment according to claim 2, characterized in that: The ventilation area of ​​the fan air inlet side (9) is greater than or equal to the air outlet area of ​​the first air outlet (2), and the ventilation area of ​​the fan air outlet side (10) is greater than or equal to the ventilation area of ​​the fan air inlet side (9).

9. A refrigerator, comprising a refrigerator freezer compartment and a freezing air duct according to any one of claims 2 to 8, wherein the freezing air duct is connected to the first air outlet (2) and the second air outlet (3).

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