Refrigerator

Abstract

The invention discloses a refrigerator. The refrigerator comprises a refrigerator body and an air supply channel, a refrigerating chamber is formed in the refrigerator body, the air supply channel is arranged in the refrigerating chamber, a plurality of air supply hole sets are formed in the air supply channel and used for supplying air to the refrigerating chamber, and the air supply hole sets are arranged at intervals in the extending direction of the air supply channel. The multiple air supply hole sets are formed in the air supply channel in the extending direction at intervals, uniform distribution of air in the refrigerating chamber is achieved, cold air can more effectively reach all corners of the refrigerating chamber, and therefore the cooling efficiency and the temperature uniformity are improved. Due to the fact that the air supply hole sets are arranged at intervals, loss of cold air when the cold air reaches a far-end area can be reduced, it is guaranteed that the temperature of the whole refrigerating chamber is more stable, temperature difference is reduced, and freshness and quality of food can be kept easily. In addition, the uniform air flow distribution is also beneficial to reducing the humidity in the refrigerating chamber, and food deterioration caused by local over-humidity is avoided.

Description

Technical Field

[0001] The invention relates to a refrigerator. Background Art

[0002] The existing refrigerator air duct system is at the back of the refrigerator. The airflow passes through the air duct fan and enters the air supply duct, enters the cabinet through the air duct outlet, flows in the cabinet and enters the return air outlet, and is sucked back into the fan after passing through the evaporator, completing a cycle. The air duct in the prior art has only one air outlet, so that the air in the refrigerator cannot be evenly distributed in a short time, which reduces the refrigeration efficiency and temperature uniformity of the refrigerator, and makes the food in the refrigerator easily deteriorate. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a refrigerator in order to overcome the defect in the prior art that the air duct has only one air outlet, so that the air in the refrigerator cannot be evenly distributed in a short time, reducing the refrigeration efficiency and temperature uniformity of the refrigerator, and further making the food in the refrigerator easy to spoil.

[0004] The present invention solves the above technical problems through the following technical solutions:

[0005] The present invention discloses a refrigerator, which comprises a refrigerator body and an air supply channel. A refrigerating chamber is provided in the refrigerator body, the air supply channel is provided in the refrigerating chamber, and a plurality of air supply hole groups are provided on the air supply channel for supplying air to the refrigerating chamber. The plurality of air supply hole groups are arranged at intervals along the extension direction of the air supply channel.

[0006] In this solution, the above-mentioned structural form is adopted, and a plurality of air supply hole groups are arranged at intervals along the extension direction on the air supply channel, so as to achieve uniform distribution of the air inside the refrigerator compartment, so that the cold air can reach every corner of the refrigerator compartment more effectively, thereby improving the cooling efficiency and temperature uniformity. Due to the interval arrangement of the air supply hole groups, the loss of cold air when reaching the remote area can be reduced, ensuring that the temperature of the entire refrigerator compartment is more stable, reducing the temperature difference, and being conducive to maintaining the freshness and quality of food. In addition, the uniform air flow distribution also helps to reduce the humidity inside the refrigerator compartment and avoid food spoilage caused by local overhumidification. At the same time, this design can also reduce the noise inside the refrigerator, because the flow of cold air is smoother and no violent air flow sound is generated.

[0007] Preferably, the refrigerator further comprises a wind shielding member, wherein the wind shielding member is in contact with the air supply channel and moves along the radial direction of the air supply channel and / or the axis of the air supply channel to switch the opening and closing of each of the air supply hole groups.

[0008] In this solution, the above-mentioned structural form is adopted to improve the temperature control ability and energy-saving effect of the refrigerator, so that the airflow output of each air supply hole group can be flexibly adjusted, thereby achieving precise control of the temperature of different areas in the cold storage room and improving the controllability of the air supply hole group.

[0009] Preferably, the wind shield is provided with a plurality of through-hole portions, each of the through-hole portions is arranged in one-to-one correspondence with each of the air supply hole groups, at least two of the through-hole portions have different extension lengths and / or at least two of the through-hole portions have opposite extension directions, and the movement direction of the wind shield is the same as the extension direction of the through-hole portions, so as to switch the state of the air supply hole groups;

[0010] In the first state, at least one of the through-hole portions is separated from the air supply hole group;

[0011] In the second state, in the axial direction of the air supply hole group, at least one of the through-hole portions overlaps with the air supply hole group.

[0012] In the present solution, the above-mentioned structural form is adopted, and the precise switching of the state of the air supply hole group is achieved by opening a plurality of through-hole portions corresponding to the air supply hole groups on the air shielding member, and designing the extension lengths of these through-hole portions to be different. When the air shielding member moves along the extension direction of the through-hole portion, the position of the air shielding member can be adjusted as needed, so that at least one through-hole portion is separated from the corresponding air supply hole group in the first state, thereby closing the airflow of the hole group; and in the second state, the through-hole portion overlaps with the air supply hole group, reopening the airflow, thereby not only improving the temperature control accuracy of the refrigerator, but also being able to flexibly adjust the distribution of the airflow according to the cooling requirements of different areas in the cold storage room. In addition, this design also helps to reduce temperature fluctuations in the cold storage room, because the temperature of each area can be more accurately controlled to maintain the overall temperature stability, which not only helps to extend the shelf life of food and reduce the risk of food spoilage, but also can provide users with more personalized temperature setting options to meet the needs of different food storage.

[0013] Preferably, the extending direction of some of the through-hole portions is different from the extending direction of another part of the through-hole portions;

[0014] For the through hole portions in the same extending direction, the extending lengths of the through hole portions are all different.

[0015] In the present solution, the above-mentioned structural form is adopted, and the extension lengths of the through-hole portions on the wind shield are designed to be different, which can provide the refrigerator with a more precise and flexible temperature control capability. This differentiated through-hole portion design allows each hole portion to be aligned or staggered with the corresponding air supply hole group at different speeds or at different time points when the wind shield moves, so that the temperature can be accurately adjusted according to the specific cooling needs of different areas in the refrigerator. This design not only improves the cooling efficiency and reduces energy waste, but also helps to maintain the temperature uniformity inside the refrigerator and reduce the temperature difference, which is crucial to maintaining the freshness and quality of food. In addition, this differentiated through-hole portion design also helps to reduce humidity fluctuations in the refrigerator, because the airflow can be adjusted in a targeted manner in areas with higher humidity, thereby maintaining the overall humidity.

[0016] Preferably, the air supply hole group includes a plurality of air supply holes, and the plurality of air supply holes are arranged at intervals along the movement direction of the wind shielding member.

[0017] In this solution, the above-mentioned structural form is adopted to provide the air supply system of the refrigerator with a more detailed and dynamic temperature adjustment capability, thereby realizing the precise distribution of the airflow in the refrigeration chamber.

[0018] Preferably, the air supply duct is connected to a corner at the back of the refrigerating chamber.

[0019] In this solution, the above-mentioned structural form is adopted, so that the air supply channel can be closer to the central area of ​​the refrigerator, which helps to distribute the cold air more evenly and reduce the temperature fluctuation in the refrigerator. In addition, this layout can maximize the use of the space in the refrigerator, because the air supply channel is located at a corner that is not easily observed by the user, so it does not take up valuable storage space. At the same time, this design also helps to reduce the interference of the air supply channel on the internal layout of the refrigerator, making the internal design of the refrigerator more flexible.

[0020] Preferably, the air supply passages are provided at the two corners at the back of the refrigerating chamber.

[0021] In this solution, the above-mentioned structural form is adopted to provide a more balanced and efficient cooling effect for the refrigerator, so that cold air can be delivered from both sides of the refrigerator compartment at the same time, thereby ensuring that the temperature distribution of the entire refrigerator space is more uniform, avoiding the temperature gradient and uneven cooling problems that may be caused by traditional unilateral air supply, thereby not only improving the preservation effect of food, but also effectively reducing the risk of food spoilage caused by excessive temperature difference. At the same time, the setting of air supply channels on both sides also helps to speed up the circulation speed of cold air in the refrigerator compartment and improve cooling efficiency. In addition, this layout also helps to reduce the uneven humidity inside the refrigerator, because the cold air can be more evenly distributed in all corners of the refrigerator compartment, thereby reducing the mildew of food caused by excessive local humidity. Overall, this design not only improves the cooling performance and preservation effect of the refrigerator through the synergistic effect of the air supply channels on both sides, but also helps to improve the user experience, making the temperature and humidity control inside the refrigerator more accurate and stable.

[0022] Preferably, the air supply passage extends from the bottom of the refrigerating chamber to the top of the refrigerating chamber.

[0023] In this solution, the above-mentioned structural form is adopted to ensure a more balanced temperature distribution in the refrigerating chamber.

[0024] Preferably, the refrigerator further comprises a fan, and an air outlet of the fan faces an opening of the air supply channel.

[0025] In this solution, the above structural form can significantly improve the flow efficiency of the air inside the refrigerator. The addition of the fan makes the cold air not only rely on natural convection, but also forced circulation through mechanical force, so that the cold air can be delivered to every corner of the refrigerator faster. The air outlet of the fan is directly aimed at the air supply channel, which ensures the directness and continuity of the cold air flow, reduces the loss and dissipation of the cold air during the transmission process, and thus improves the refrigeration efficiency.

[0026] Preferably, the refrigerator further comprises an evaporator and a return air duct, wherein the return air duct is arranged in the refrigerating chamber, and the return air duct is connected with the air supply duct through the evaporator.

[0027] In this solution, the above structure is adopted to allow the air in the return air duct to be cooled by the evaporator and then sent back to the refrigerated room, which not only improves the utilization rate of the cold air, but also ensures the uniformity of the temperature in the refrigerated room. Because the air in the refrigerated room is guided to the evaporator in the return air duct, cooled again, and then evenly distributed to every corner of the refrigerated room through the air supply duct, such a cycle process can continuously provide cold air to the refrigerated room and maintain a constant low temperature environment.

[0028] The positive and progressive effects of the present invention are:

[0029] Multiple air supply hole groups are arranged at intervals along the extension direction of the air supply channel to achieve uniform distribution of the air inside the refrigerator compartment, so that the cold air can reach every corner of the refrigerator compartment more effectively, thereby improving the cooling efficiency and temperature uniformity. Due to the interval arrangement of the air supply hole groups, the loss of cold air when reaching the remote area can be reduced, ensuring that the temperature of the entire refrigerator compartment is more stable, reducing the temperature difference, and helping to maintain the freshness and quality of food. In addition, the uniform air flow distribution also helps to reduce the humidity inside the refrigerator compartment and avoid food spoilage caused by local overhumidification. At the same time, this design can also reduce the noise inside the refrigerator, because the flow of cold air is smoother and no violent air flow sound is generated. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 Schematic diagram of a refrigerator according to an embodiment of the present invention.

[0031] Figure 2 Schematic diagram of a partial structure of a refrigerator according to an embodiment of the present invention.

[0032] Figure 3 A partial schematic diagram of a refrigerator according to an embodiment of the present invention.

[0033] Figure 4 It is a partial cross-sectional structural schematic diagram of a refrigerator according to an embodiment of the present invention.

[0034] Figure 5 It is a partial cross-sectional schematic diagram of a refrigerator according to an embodiment of the present invention.

[0035] Description of reference numerals:

[0036] Refrigerator 100

[0037] Refrigerator body 1

[0038] Refrigerator 11

[0039] Corner 12

[0040] Long surface 13

[0041] Wide surface 14

[0042] Fourth surface 15

[0043] Air supply channel 2

[0044] Air supply hole group 21

[0045] Air supply hole 211

[0046] First surface 22

[0047] Second surface 23

[0048] The third surface 24

[0049] Wind shield 3

[0050] Through hole part 31

[0051] Through hole 311

[0052] Fan 4

[0053] Evaporator 5

[0054] Return air duct 6 DETAILED DESCRIPTION

[0055] The present invention is further described below by way of examples, but the present invention is not limited to the scope of the examples.

[0056] like Figures 1 to 5 As shown, the present embodiment provides a refrigerator 100, which includes a refrigerator body 1 and an air supply channel 2. A refrigerator chamber 11 is provided in the refrigerator body 1, and the air supply channel 2 is provided in the refrigerator chamber 11. A plurality of air supply hole groups 21 are provided on the air supply channel 2 for supplying air to the refrigerator chamber 11, and the plurality of air supply hole groups 21 are arranged at intervals along the extension direction of the air supply channel 2. With the above-mentioned structural form, a plurality of air supply hole groups 21 are arranged at intervals along the extension direction on the air supply channel 2, so that the air inside the refrigerator chamber 11 is evenly distributed, so that the cold air can reach every corner of the refrigerator chamber 11 more effectively, thereby improving the cooling efficiency and temperature uniformity. Due to the interval arrangement of the air supply hole groups 21, the loss of cold air when reaching the remote area can be reduced, ensuring that the temperature of the entire refrigerator chamber 11 is more stable, reducing the temperature difference, and being conducive to maintaining the freshness and quality of food. In addition, the uniform air flow distribution also helps to reduce the humidity inside the refrigerator chamber 11, and avoids food deterioration caused by local over-humidity. At the same time, this design can also reduce the noise inside the refrigerator 100 because the flow of cold air is smoother and no violent airflow sound is generated.

[0057] It should be specifically noted that, in this embodiment, the refrigerator 100 further includes an air supply pipe, and the interior of the air supply pipe forms an air supply channel 2. In other embodiments, the air supply channel 2 may also be formed in other forms, which are not limited here.

[0058] like Figures 2 to 5 As shown, the refrigerator 100 also includes a wind shielding member 3, which is in contact with the air supply channel 2. There are several implementation modes for the movement of the shielding member. In a first implementation mode, the wind shielding member 3 moves along the radial direction of the air supply channel 2 to switch the opening and closing of each air supply hole group 21; in a second implementation mode, the wind shielding member 3 moves along the axial direction of the air supply channel 2 to switch the opening and closing of each air supply hole group 21; in a third implementation mode, the wind shielding member 3 moves along the radial direction of the air supply channel 2 and the axial direction of the air supply channel 2 to switch the opening and closing of each air supply hole group 21.

[0059] In this embodiment, the wind shielding member 3 moves along the radial direction of the air supply channel 2 to switch the opening and closing of each air supply hole group 21. The above-mentioned structural form improves the temperature control ability and energy saving effect of the refrigerator 100, so that the air flow output of each air supply hole group 21 can be flexibly adjusted, thereby realizing accurate control of the temperature of different areas in the refrigerating chamber 11, and improving the controllability of the air supply hole group 21. In other embodiments, the movement direction of the wind shielding member 3 can be adjusted according to actual needs, which is not limited here.

[0060] like Figures 2 to 5 As shown, the wind shield 3 is provided with a plurality of through-hole portions 31, each through-hole portion 31 is arranged in one-to-one correspondence with each air supply hole group 21, at least two through-hole portions 31 have different extension lengths, and the movement direction of the wind shield 3 is the same as the extension direction of the through-hole portion 31, which is used to switch the state of the air supply hole group 21; in the first state, at least one through-hole portion 31 is separated from the air supply hole group 21; in the second state, at least one through-hole portion 31 coincides with the air supply hole group 21 in the axial direction of the air supply hole group 21. With the above-mentioned structural form, by providing a plurality of through-hole portions 31 corresponding to the air supply hole groups 21 on the wind shield 3, and designing these through-hole portions 31 to have different extension lengths, accurate switching of the state of the air supply hole group 21 is achieved. When the wind shielding member 3 moves along the extension direction of the through hole portion 31, the position of the wind shielding member 3 can be adjusted as needed, so that at least one through hole portion 31 is separated from the corresponding air supply hole group 21 in the first state, thereby closing the airflow of the air supply hole group 21; and in the second state, the through hole portion 31 overlaps with the air supply hole group 21, reopening the airflow, thereby not only improving the temperature control accuracy of the refrigerator 100, but also being able to flexibly adjust the distribution of the airflow according to the cooling requirements of different areas in the refrigerating chamber 11. In addition, this design also helps to reduce temperature fluctuations in the refrigerating chamber 11, because the temperature of each area can be more accurately controlled to maintain the overall temperature stability, which not only helps to extend the preservation time of food and reduce the risk of food spoilage, but also can provide users with more personalized temperature setting options to meet the needs of different food storage.

[0061] It should be specifically explained that the refrigerator 100 also includes a plurality of temperature measuring components, which are arranged in the refrigerating chamber 11, and the plurality of temperature measuring components are arranged in a one-to-one correspondence with the plurality of through-hole portions 31. Each temperature measuring component measures the temperature of each position of the refrigerating chamber 11, and sends the measured temperature to the control unit, which compares each temperature with the preset temperature. If the temperature is lower than the preset temperature, the wind shield 3 is controlled to move to open the through-hole portion 31 corresponding to the position. In other words, when the temperature of multiple positions is lower than the preset temperature, the wind shield 3 is controlled to move to open the through-hole portions 31 corresponding to all positions whose temperatures are lower than the preset temperature. When the temperatures of all positions are lower than the preset temperature, the wind shield 3 is controlled to open all the through-hole portions 31. When the temperature of a certain position is lower than the preset temperature, the wind shield 3 is controlled to open only the through-hole portion 31 corresponding to the position.

[0062] like Figure 3 and Figure 4 As shown, in this embodiment, the number of through-hole portions 31 is three as an example for schematic expression. In other embodiments, the number of through-hole portions 31 can be adjusted according to actual needs and is not limited here. Preferably, the extension direction of some through-hole portions 31 is different from the extension direction of another part of the through-hole portions 31; for the through-hole portions 31 with the same extension direction, the extension lengths of the through-hole portions 31 are all different. By adopting the above-mentioned structural form, the extension lengths of the through-hole portions 31 on the wind shield 3 are designed to be different, which can provide the refrigerator 100 with a more sophisticated and flexible temperature control capability. This differentiated through-hole portion 31 design allows each hole portion to be aligned or staggered with the corresponding air supply hole group 21 at different speeds or at different time points when the wind shield 3 moves, so that the temperature can be accurately adjusted according to the specific cooling needs of different areas in the cold storage chamber 11. This design not only improves the cooling efficiency and reduces energy waste, but also helps to maintain the temperature uniformity inside the cold storage chamber 11 and reduce the temperature difference, which is crucial to maintaining the freshness and quality of food. In addition, this differentiated design of the through-hole portion 31 also helps to reduce humidity fluctuations in the cold storage room 11, because the airflow can be adjusted in a targeted manner in areas with higher humidity, thereby maintaining the overall humidity. In specific use, the through-hole portion 31 may include a plurality of through-holes 311. For the through-hole portions 31 at each position, the spacing between two adjacent through-holes 311 along the extension direction of the through-hole portion 31 is different, thereby achieving different extension lengths of each through-hole portion 31. Of course, each through-hole portion 31 may also include only one through-hole 311, and the extension lengths of the through-holes 311 are different. In other embodiments, the extension directions of the through-holes 311 may also be different. In other words, the extension directions of the two through-hole portions 31 are opposite, thereby facilitating the adjustment of the air supply hole group 21 by the through-hole portion 31.

[0063] like Figure 5As shown, the air supply hole group 21 includes a plurality of air supply holes 211, and the plurality of air supply holes 211 are arranged at intervals along the movement direction of the wind shielding member 3. The above-mentioned structural form provides a more detailed and dynamic temperature adjustment capability for the air supply system of the refrigerator 100, thereby realizing the precise distribution of the air flow in the refrigerating chamber 11. In this embodiment, the number of the air supply holes 211 is three as an example for schematic expression. In other embodiments, the number of the air supply holes 211 can be adjusted according to actual needs, which is not limited here.

[0064] like Figure 1 As shown, the air supply duct 2 is connected to the corner 12 at the back of the refrigerating chamber 11. The above-mentioned structural form allows the air supply duct 2 to be closer to the central area of ​​the refrigerating chamber 11, thereby facilitating a more even distribution of cold air and reducing temperature fluctuations in the refrigerating chamber 11. In addition, this layout can maximize the use of the space in the refrigerating chamber 11, because the air supply duct 2 is located at the corner 12 that is not easily directly observed by the user, so that it does not occupy valuable storage space. At the same time, this design also helps to reduce the interference of the air supply duct 2 on the internal layout of the refrigerating chamber 11, so that the internal design of the refrigerating chamber 11 can be more flexible.

[0065] like Figure 5As shown, it should be specifically explained that, in this embodiment, the air supply channel 2 includes a first surface 22 facing the corner 12, and the shape of the first surface 22 is adapted to the shape of the corner 12. The air supply channel 2 also includes a second surface 23, the second surface 23 is arranged facing the long surface 13 of the refrigerator body 1, and the second surface 23 is adapted to the shape of the long surface 13. The refrigerator body 1 also includes a wide surface 14, and the extension directions of the long surface 13 and the wide surface 14 form an angle of 90 degrees, wherein the long surface 13 and the wide surface 14 are connected to form the corner 12; the air supply channel 2 also includes a third surface 24, the third surface 24 is arranged facing the wide surface 14, and the third surface 24 is adapted to the shape of the wide surface 14. The air supply channel 2 also includes a fourth surface 15, and the two ends of the fourth surface 15 are connected to the second surface 23 and the third surface 24 respectively, the surface of the fourth surface 15 protrudes toward the surface of the refrigerating chamber 11, the air supply hole group 21 is opened on the fourth surface 15, and the shape of the wind shield 3 is adapted to the shape of the fourth surface 15, thereby increasing the contact area between the wind shield 3 and the fourth surface 15, thereby improving the stability and reliability of the wind shield 3 moving on the fourth surface 15. Preferably, the two corners 12 on the back of the refrigerating chamber 11 are provided with air supply channels 2. The above structural form provides a more balanced and efficient cooling effect for the refrigerator 100, so that cold air can be simultaneously supplied from both sides of the refrigerating chamber 11, thereby ensuring that the temperature distribution of the entire refrigerating space is more uniform, avoiding the temperature gradient and uneven cooling problems that may be caused by traditional unilateral air supply, thereby not only improving the preservation effect of food, but also effectively reducing the risk of food deterioration caused by excessive temperature difference. At the same time, the provision of air supply channels 2 on both sides also helps to speed up the circulation speed of cold air in the refrigerating chamber 11 and improve the cooling efficiency. In addition, this layout also helps to reduce the uneven humidity inside the refrigerator 100, because the cold air can be more evenly distributed in all corners of the refrigerating chamber 11, thereby reducing the mildew of food caused by excessive local humidity. Overall, this design not only improves the cooling performance and preservation effect of the refrigerator 100 through the synergistic effect of the air supply channels 2 on both sides, but also helps to improve the user experience, making the temperature and humidity control inside the refrigerator 100 more accurate and stable. The air supply channel 2 extends from the bottom of the refrigerating chamber 11 to the top of the refrigerating chamber 11, thereby ensuring that the temperature distribution in the refrigerating chamber 11 is more balanced.

[0066] like Figure 2As shown, the refrigerator 100 also includes a fan 4, and the air outlet of the fan 4 faces the opening of the air supply channel 2. The above-mentioned structural form can significantly improve the flow efficiency of the air inside the refrigerator 100. The addition of the fan 4 makes the cold air not only rely on natural convection, but also forced to circulate through mechanical force, so that the cold air can be delivered to every corner of the refrigerator 100 more quickly. The air outlet of the fan 4 is directly aimed at the air supply channel 2, ensuring the directness and continuity of the cold air flow, reducing the loss and dissipation of the cold air during the transmission process, thereby improving the refrigeration efficiency. In this embodiment, the air outlet of the fan 4 is directly opposite to the opening of the air supply channel 2.

[0067] like Figure 2 and Figure 3 As shown, the refrigerator 100 further includes an evaporator 5 and a return air duct 6. The return air duct 6 is arranged in the refrigerating chamber 11, and the return air duct 6 is connected to the air supply duct 2 through the evaporator 5. The above-mentioned structural form allows the air in the return air duct 6 to be cooled by the evaporator 5 and then sent back to the refrigerating chamber 11, which not only improves the utilization rate of cold air, but also ensures the uniformity of temperature in the refrigerating chamber 11. Because the air in the refrigerating chamber 11 is guided to the evaporator 5 in the return air duct 6, cooled again, and then evenly distributed to every corner of the refrigerating chamber 11 through the air supply duct 2, such a circulation process can continuously provide cold air to the refrigerating chamber 11 and maintain a constant low temperature environment.

[0068] Although the specific embodiments of the present invention are described above, it should be understood by those skilled in the art that this is only for illustration and the protection scope of the present invention is defined by the appended claims. Those skilled in the art may make various changes or modifications to these embodiments without departing from the principles and essence of the present invention, but these changes and modifications all fall within the protection scope of the present invention.

Claims

1. A refrigerator, characterized in that: The refrigerator includes a refrigerator body and an air supply channel. A refrigerating chamber is provided in the refrigerator body, the air supply channel is provided in the refrigerating chamber, and a plurality of air supply hole groups are provided on the air supply channel for supplying air to the refrigerating chamber. The plurality of air supply hole groups are arranged at intervals along the extension direction of the air supply channel.

2. The refrigerator according to claim 1, characterized in that: The refrigerator further comprises a wind shielding member, which is fitted with the air supply channel and moves along the radial direction of the air supply channel and / or the axis of the air supply channel to switch the opening and closing of each of the air supply hole groups.

3. The refrigerator according to claim 2, characterized in that: The wind shield is provided with a plurality of through-hole portions, each of which is arranged in one-to-one correspondence with each of the air supply hole groups, at least two of which have different extension lengths and / or at least two of which have opposite extension directions, and the movement direction of the wind shield is the same as the extension direction of the through-hole portions, so as to switch the state of the air supply hole groups; In the first state, at least one of the through-hole portions is separated from the air supply hole group; In the second state, in the axial direction of the air supply hole group, at least one of the through-hole portions overlaps with the air supply hole group.

4. The refrigerator according to claim 3, characterized in that: The extending direction of some of the through-hole portions is different from the extending direction of another part of the through-hole portions; For the through hole portions in the same extending direction, the extending lengths of the through hole portions are all different.

5. The refrigerator according to claim 2, characterized in that: The air supply hole group includes a plurality of air supply holes, and the plurality of air supply holes are arranged at intervals along the moving direction of the wind shielding member.

6. The refrigerator according to claim 1, characterized in that: The air supply channel is connected to the corner of the back of the refrigerating chamber.

7. The refrigerator according to claim 6, characterized in that: The two corners at the back of the refrigerating chamber are both provided with the air supply passages.

8. The refrigerator according to claim 1, characterized in that The air supply passage extends from the bottom of the refrigerating chamber to the top of the refrigerating chamber.

9. The refrigerator according to claim 1, characterized in that: The refrigerator further comprises a fan, wherein an air outlet of the fan faces an opening of the air supply passage.

10. The refrigerator according to claim 1, characterized in that: The refrigerator further includes an evaporator and a return air duct. The return air duct is arranged in the refrigerating chamber and is connected to the air supply duct through the evaporator.

Images