Refrigerator

Abstract

The refrigerator comprises a partition plate part used for dividing chambers of the refrigerator and a main air duct formed between an air duct cover plate behind a storage space of the refrigerator and an inner container of the refrigerator, and the air duct cover plate is at least provided with a first air outlet and a first air return opening. The partition plate part comprises an upper partition plate and a lower partition plate which are opposite to each other at a certain interval in the height direction of the refrigerator, a first air channel allowing cold air to flow back to the main air channel is formed between the upper partition plate and the lower partition plate, and an inlet of the first air channel is located at the end, close to the refrigerator door, of the partition plate part. An outlet of the first air duct is located at the other end, close to the air duct cover plate, of the partition plate part and communicates with a first air return opening formed in the air duct cover plate, and cold air flowing out of the first air outlet of the main air duct flows into the storage space to be cooled, passes through the first air duct formed in the partition plate part and returns to the main air duct through the first air return opening. Therefore, the first return air inlet of the main air duct is not directly exposed out of the storage space, foreign matters are prevented from entering the main air duct through the first return air inlet, and the space of the partition plate part is fully utilized.

Description

TECHNICAL FIELD

[0001] The utility model relates to a refrigerator, especially a refrigerator with a partition plate with a built-in air duct. BACKGROUND

[0002] In the refrigerator, cold air for cooling the storage space of the refrigerator flows from the air duct provided with a cold quantity providing device (for example, a refrigerant evaporation heat absorption type refrigeration device such as an evaporator) into the refrigerator storage space to be cooled, and then returns to the air duct through the return air port. Generally, the return air port for the return of cold air is arranged at the front side of the air duct cover plate and the rear side of the shelf in the storage space. That is, the return air port is exposed to the storage space. Therefore, the food stored in the refrigerator may come into contact with the return air port. Soup, foreign matter, etc. are easy to enter the air duct from the return air port, which not only may cause the return air port to be blocked to affect the refrigeration effect, but also is easy to breed bacteria. On the other hand, in the conventional refrigerator, the partition plate for dividing the compartments (for example, upper and lower compartments) of the refrigerator is thick, causing waste of the storage space in the refrigerator. SUMMARY

[0003] The utility model is completed in view of the above problems, and the purpose is to provide a refrigerator with an improved partition plate part, which is built-in with an air duct for the return of cold air in communication with the return air port of the air duct, which on the one hand avoids the blockage of the air duct by foreign matter entering the air duct through the return air port of the air duct, and on the other hand makes full use of the space of the partition plate part.

[0004] The refrigerator of the utility model comprises a partition plate part for dividing the compartments of the refrigerator, and a total air duct formed between the air duct cover plate at the rear of the storage space of the refrigerator and the inner container of the refrigerator, wherein at least a first air outlet and a first return air port are arranged on the air duct cover plate, the partition plate part comprises upper and lower partition plates opposite to each other at a certain interval in the height direction of the refrigerator, a first air duct for the return of cold air to the total air duct is formed between the upper and lower partition plates, the inlet of the first air duct is located at one end of the partition plate part close to the refrigerator door, the outlet of the first air duct is located at the other end of the partition plate part close to the air duct cover plate, the outlet of the first air duct is in communication with the first return air port arranged on the air duct cover plate, the cold air flowing out of the first air outlet of the total air duct flows into the storage space to be cooled, and returns to the total air duct through the first return air port via the first air duct formed in the partition plate part.

[0005] According to the refrigerator of the utility model, the partition plate part has: upper and lower partition plates opposite to each other at certain intervals in the height direction of the refrigerator, and a cavity for cold air return formed between the upper and lower partition plates, that is, a first air duct. The outlet of the first air duct and the first return air port of the total air duct are communicated. Thus, the first return air port of the total air duct is not directly exposed to the storage space. On the one hand, the food placed in the storage space of the refrigerator will not directly contact the first return air port of the total air duct, avoiding that soup, foreign matters and the like enter the total air duct through the first return air port to block the total air duct and affect the refrigeration effect. On the other hand, due to the presence of the partition plate part, the user cannot see the first return air port provided on the air duct cover plate, so that the design is more beautiful. In addition, the partition plate part originally used for dividing compartments (for example, upper and lower compartments) also has the function of the air duct for cold air return, fully utilizes the space of the partition plate part, and improves the space utilization rate.

[0006] In addition, the refrigerator of the utility model preferably further has: a heat insulation plate provided on the compartment side different from the temperature of the cold air flowing in the first air duct between the upper and lower partition plates. Thus, the temperature in the compartment separated by the partition plate part can be prevented from being affected by the cold air returning in the first air duct, so that the temperature in the compartment can be more accurately controlled.

[0007] In addition, the refrigerator of the utility model preferably has: the heat insulation plate is a foam plate or a vacuum heat insulation plate. Compared with the foam plate, the vacuum heat insulation plate has better heat insulation effect.

[0008] In addition, the refrigerator of the utility model preferably has: the upper partition plate comprises: a main body part opposite to the lower partition plate in the height direction of the refrigerator; and an extension part extending downwardly and bent or folded away from the main body part on the inlet side. By providing the extension part on the upper partition plate, on the one hand, foreign matters can be prevented from entering the first air duct, and on the other hand, the user cannot easily see the inlet of the first air duct, and the visual effect is further improved.

[0009] In addition, the refrigerator of the utility model preferably has: the thickness of the heat insulation plate in the height direction of the refrigerator is smaller closer to the inlet. Thus, in the case that the extension part of the upper partition plate partially blocks the inlet of the first air duct, the resistance during the return of the cold air can also be reduced.

[0010] In addition, the refrigerator of the utility model preferably has: the upper partition plate is provided with a reinforcing rib or a reserved position for placing reinforcing iron. By providing the reinforcing rib or the reinforcing iron, the load bearing capacity of the upper partition plate for the compartment (for example, the upper compartment) placed above the upper partition plate can be improved.

[0011] In addition, the refrigerator of the utility model preferably has: the lower partition plate is provided with an illuminating device for compartment illumination close to the compartment side. Thus, the illumination demand of the compartment below the lower partition plate can be met.

[0012] In addition, the refrigerator of the utility model, preferably, temperature sensor is provided on the baffle part near the first air duct side, is used for detecting the temperature of the cold air flowing in the first air duct. Thus, the temperature of the cold air flowing in the first air duct can be accurately obtained, and the temperature of the storage space can be more accurately closed-loop controlled.

[0013] In addition, the refrigerator of the utility model, preferably, deodorization device is provided on the baffle part near the first air duct side, is used for purifying the cold air flowing in the first air duct. Thus, by purifying the return air, the air in the storage space can be fresh, thereby improving the user experience.

[0014] In addition, the refrigerator of the utility model, preferably, the baffle part further has: a middle baffle for covering the temperature sensor or the deodorization device. Thus, the water vapor carried in the cold air can be avoided to affect the temperature sensor or the deodorization device.

[0015] Effects of the utility model

[0016] According to the refrigerator of the utility model, the upper baffle and the lower baffle of the baffle part opposite to each other at a certain interval in the height direction of the refrigerator form the first air duct for the return flow of the cold air, and the outlet of the first air duct and the first return air port of the total air duct are communicated. Thus, the first return air port of the total air duct is not directly exposed to the storage space. On the one hand, the food placed in the storage space of the refrigerator will not directly contact the first return air port of the total air duct, avoiding that the soup, foreign matters and the like enter the total air duct through the first return air port to block the total air duct and affect the refrigeration effect. On the other hand, the user cannot see the first return air port provided on the air duct cover plate, thereby improving the visual effect. In addition, the space of the baffle part is fully utilized, and the space utilization rate is improved. BRIEF DESCRIPTION OF DRAWINGS

[0017] The above and other objects, features and advantages of the present application will become more apparent from the following detailed description made with reference to the accompanying drawings in which:

[0018] Figure 1 is a schematic cross-sectional view showing the refrigerator according to the utility model;

[0019] Figure 2 is a schematic rear view showing the refrigerator according to the utility model;

[0020] Figure 3 is a schematic exploded perspective view showing the baffle part of the refrigerator according to the utility model;

[0021] Figure 4 is a schematic cross-sectional view showing the baffle part of the refrigerator according to the utility model;

[0022] Figure 5 is a schematic view showing the air path in the first air duct.

[0023] It should be appreciated that the drawings are not necessarily drawn to scale, but present a somewhat simplified representation of various features for purposes of illustrating the basic principles of the application. Specific design features of the application contained herein, including, for example, specific dimensions, orientations, locations, and shapes, will be determined in part by the particular design sought to be protected.

[0024] In the drawings, like reference numerals refer to like parts throughout the various views thereof.

[0025] Reference numerals

[0026] Refrigerator 1

[0027] Partition portion 10

[0028] Upper partition 11

[0029] Main body portion 110

[0030] Extension portion 111

[0031] Reinforcing rib 113

[0032] Lower partition 12

[0033] First air duct 13

[0034] Inlet 14 of first air duct

[0035] Outlet 15 of first air duct

[0036] Thermal insulation plate 16

[0037] Middle partition 17

[0038] Temperature sensor 161

[0039] Upper intermediate chamber 20

[0040] Lower intermediate chamber 21

[0041] Storage space 30

[0042] Total air duct 40

[0043] Air duct cover plate 41

[0044] Inner container 42

[0045] First return air inlet 43

[0046] Evaporator 50 DETAILED DESCRIPTION

[0047] The present application will be described in more detail below with reference to the accompanying drawings and embodiments.

[0048] The present application will be described in more detail below with reference to the accompanying drawings and embodiments.Figure 1 is a sectional perspective view schematically showing the refrigerator according to the present application. Figure 2 is a rear view schematically showing the refrigerator according to the present application. Figure 3 is an exploded perspective view schematically showing the partition portion of the refrigerator according to the present application. Figure 4 is a sectional view schematically showing the partition portion of the refrigerator according to the present application. Figure 5 is a view schematically showing the air path in the first air duct. In addition, in Figures 1 to 5 , the height direction of the refrigerator is set as the z direction, the width direction of the refrigerator is set as the x direction, and the depth direction of the refrigerator is set as the y direction. The x direction, the y direction, and the z direction are perpendicular to each other.

[0049] As shown in Figure 1 , the total air duct 40 of the refrigerator 1 is formed between the air duct cover plate 41 at the back of the storage space 30 of the refrigerator 1 and the inner liner 42 of the refrigerator. The total air duct 40 is provided with a cold quantity providing device (for example, a refrigerant evaporative heat absorption type refrigeration device such as an evaporator 50). In the present embodiment, an embodiment in which the refrigerator 1 is provided with cold quantity in the form of air cooling is exemplarily described, but a mixed cooling mode in which air cooling and direct cooling of the refrigerator by the cold quantity providing device are combined can also be adopted. At least a first air outlet (not shown) and a first return air inlet 43 are provided on the air duct cover plate 41. It should be noted that, in the refrigerator 1, in addition to the first air outlet and the first return air inlet provided for the open storage space, air inlets and return air inlets for circulating cold air can also be further separately provided for the upper and lower compartments 20, 21.

[0050] The refrigerator 1 further comprises a partition portion 10 for dividing the compartments of the refrigerator 1. As shown in Figure 1 , 2 , in the height direction (z direction) of the refrigerator, the upper compartment 20 and the lower compartment 21 are respectively arranged on both sides of the partition portion 10.

[0051] In addition, as shown in Figure 4 , 5 , the partition portion 10 comprises an upper partition 11 and a lower partition 12 opposite to each other at a certain interval in the height direction (z direction) of the refrigerator 1, and a first air duct 13 for returning cold air to the total air duct 40 is formed between the upper partition 11 and the lower partition 12. The inlet 14 of the first air duct is located at one end (right side in Figures 4, 5) of the partition portion 10 close to the door of the refrigerator, and the outlet 15 of the first air duct 13 is located at the other end (left side in Figures 4, 5) of the partition portion 10 close to the air duct cover plate 41. Figure 4 , 5 As shown in Figure 1 , the outlet 15 of the first air duct 13 communicates with the first return air inlet 43 provided on the air duct cover plate 41. Thus, referring to Figure 5The cool air flowing out of the first air outlet of the total air duct 40 flows into the storage space 30 to be cooled, and enters the first air duct 13 via the inlet 14 formed in the first air duct 13 of the partition portion 10, flows out of the first air duct 13 from the outlet 15 of the first air duct 13, and returns to the total air duct 40 through the first return air outlet 43 communicating with the outlet 15.

[0052] In Figure 1 the first air duct 13, the outlet 15 is aligned with the first return air outlet 43 of the total air duct 40. The size of the first return air outlet 43 can be equal to or less than the size of the outlet 15 of the first air duct 13. That is, as viewed from the depth direction (y direction) of the refrigerator, the outlet 15 of the first air duct 13 surrounds the first return air outlet 43.

[0053] Thus, the first return air outlet 43 of the total air duct 40 is not directly exposed to the storage space 30. On the one hand, the food placed in the storage space 30 of the refrigerator cannot directly contact the first return air outlet 43 of the total air duct 40, avoiding the situation that soup, foreign matter, etc. enters the total air duct 40 through the first return air outlet 43 to block the total air duct 40 and affect the refrigeration effect. On the other hand, due to the shielding of the partition portion 10, the user cannot directly see the first return air outlet 43 provided on the air duct cover plate 41, making the design more beautiful and improving the visual effect. In addition, the partition portion 10 originally used to divide the compartments (here, the upper and lower compartments 20, 21) also has the function of the air duct for the return flow of cool air, fully utilizing the space of the partition portion 10 and improving the space utilization rate.

[0054] In addition, the temperatures of different compartments in the refrigerator can also be different. As in the present embodiment, the temperature of the lower compartment 21 is higher than that of the open storage space 30 and the upper compartment 20. Since the cool air returned to the first air duct 13 after cooling the open storage space 30 has a temperature substantially the same as that of the open storage space 30 and the upper compartment 20, the temperature of the cool air returned in the first air duct 13 is lower than that of the lower compartment 21. That is, in this case, the temperature of the cool air returned in the first air duct 13 is different from that of the lower compartment 21. At this time, the heat insulation plate 16 is provided on the side of the compartment (i.e., the lower compartment 21) having a temperature different from that of the cool air flowing in the first air duct 13 between the upper partition 11 and the lower partition 12 of the partition portion 10. Thus, the temperature of the cool air returned in the first air duct 13 can be prevented from affecting the temperature in the lower compartment 21, so that the temperature in the lower compartment 21 can be more accurately controlled. Preferably, the heat insulation plate is a foam plate or a vacuum insulation panel (VIP plate). Compared with the foam plate, the vacuum insulation panel has better heat insulation effect.

[0055] In this embodiment, the temperature of the upper chamber 20 above the partition 10 is the same as the temperature of the cold air returning in the first air duct 13. Therefore, the heat insulation plate 16 is only provided on the lower chamber 21 side where the temperature is different. It should be understood that if the temperature of the upper chamber 20 is also different from the temperature of the cold air returning in the first air duct 13, a heat insulation plate may be further provided on the partition 10 near the upper chamber 20.

[0056] like Figure 4 As shown, the upper partition 11 includes a main body 110 and an extension 111. The main body 110 is opposite to the lower partition 12 in the height direction (z-direction) of the refrigerator 1. The extension 111 extends downward (z-direction) from the main body 110 toward the inlet 14 side of the first air duct 13, bending or folding. By providing the extension 111 on the upper partition 11, foreign objects can be prevented from entering the first air duct 13, and the user cannot easily see the inlet 14 of the first air duct 13, further improving the visual effect.

[0057] Compared to the partition section 10 without the extension 111, the inlet 14 of the first air duct 13 is partially blocked by the extension 111, which may result in a smaller inlet 14 and increased resistance to the recirculating cold air. In this case, the aerodynamic characteristics of the recirculating air in the first air duct 13 can be altered by changing the thickness of the heat insulation plate 16. In this embodiment, the thickness of the heat insulation plate 16 in the height direction of the refrigerator is smaller closer to the inlet 14. Therefore, even when the extension 111 of the upper partition 11 partially blocks the inlet 14 of the first air duct 13, the resistance to the recirculating cold air can be reduced. It should be understood that even when the partition section 10 does not have the heat insulation plate 16, the aerodynamic characteristics of the recirculating air in the first air duct 13 can be adjusted by changing the profile of the lower partition 12 near the first air duct 13.

[0058] In addition, such as Figure 3 As shown, the upper partition 11 may also be provided with reinforcing ribs 113 or reserved positions for placing reinforcing iron (not shown). By providing reinforcing ribs 113 or reinforcing iron, the load-bearing capacity of the upper partition 11 on the compartment placed above it can be improved. Figure 1 The load-bearing capacity of the upper chamber (20) is as follows.

[0059] In addition, such as Figure 3 As shown, a lighting device 121 for illuminating the lower compartment 21 is provided on the side of the lower partition 12 near the lower compartment 21. This satisfies the lighting requirements of the lower compartment 21 below the lower partition 12.

[0060] In addition, such as Figure 3As shown, a temperature sensor 161 for detecting the temperature of the cold air flowing in the first air duct 13 is provided on the partition section 10 near the first air duct 13. This allows for accurate measurement of the temperature of the cold air flowing in the first air duct 13, enabling more precise closed-loop control of the storage space 30's temperature. Here, the temperature sensor 161 is located on the heat insulation plate 16, but it could also be located on the upper partition 11 or the lower partition 12, as long as the temperature of the cold air flowing in the first air duct 13 can be accurately detected.

[0061] Alternatively, a deodorizing device (not shown) can be provided on the partition section 10 near the first air duct 13 to purify the cold air flowing in the first air duct 13. This purifies the return air, making the air in the storage space fresher and improving the user experience. As mentioned above, the location of the deodorizing device on the partition section is not limited to the insulation plate; it can also be provided on the upper partition 11 or the lower partition 12, as long as it can purify the cold air flowing in the first air duct 13. Furthermore, it should be understood that other functional modules can also be provided on the partition section 10, such as a desiccant for removing water vapor from the return cold air.

[0062] When the partition section 10 is equipped with functional modules such as a temperature sensor 161 and a deodorization device, the partition section 10 may also have a middle partition 17. The middle partition 17 is used to cover the functional modules such as the temperature sensor or the deodorization device. This prevents water vapor carried in the cold air from affecting the temperature sensor 161 or the deodorization device. Figure 3 As shown, multiple partitions 17 can be set to cover each functional module respectively. The size of the partitions 17 can also be different from that of the upper and lower partitions 11 and 12, and can be appropriately set according to the size of the functional modules to be covered.

[0063] While the present invention has been described in detail above with reference to the accompanying drawings and embodiments, it is to be understood that the above description does not limit the present invention in any way. Those skilled in the art can make modifications and variations to the present invention as needed without departing from its essential spirit and scope, and all such modifications and variations fall within the scope of the present invention.

Claims

1.A refrigerator, wherein comprises: a partition portion for dividing a compartment of the refrigerator, and a total air duct formed between a duct cover plate at the back of a storage space of the refrigerator and an inner container of the refrigerator, at least a first air outlet and a first return air outlet being provided on the duct cover plate, the partition portion comprises an upper partition and a lower partition facing each other at a certain interval in a height direction of the refrigerator, a first air duct for returning cool air to the total air duct being formed between the upper partition and the lower partition, an inlet of the first air duct is located at one end of the partition portion close to a refrigerator door, and an outlet of the first air duct is located at the other end of the partition portion close to the duct cover plate, the outlet of the first air duct communicates with the first return air outlet provided on the duct cover plate, cool air flowing out of the first air outlet of the total air duct flows into a storage space to be cooled, and returns to the total air duct through the first return air outlet via the first air duct formed in the partition portion. 2.The refrigerator according to claim 1, wherein the partition portion further has a heat insulating plate provided on a compartment side different from a temperature of cool air flowing in the first air duct between the upper partition and the lower partition. 3.The refrigerator according to claim 2, wherein the heat insulating plate is a foam plate or a vacuum heat insulating plate. 4.The refrigerator according to claim 1 or 2, wherein the upper partition comprises a main portion facing the lower partition in the height direction of the refrigerator, and an extension portion extending from the main portion toward a direction away from the main portion and bending or folding downward at the inlet side. 5.The refrigerator according to claim 2, wherein a thickness of the heat insulating plate in the height direction of the refrigerator is smaller closer to the inlet. 6.The refrigerator according to claim 1 or 2, wherein the upper partition is provided with a reinforcing rib or a reserved position for placing a reinforcing iron. 7.The refrigerator according to claim 1 or 2, wherein the lower partition is provided with a lighting device for compartment lighting close to a compartment side. 8.The refrigerator according to claim 1, wherein a temperature sensor for detecting a temperature of cool air flowing in the first air duct is provided on the partition portion close to the first air duct side. 9.The refrigerator according to claim 1, wherein a deodorizing device for purifying cool air flowing in the first air duct is provided on the partition portion close to the first air duct side. 10.The refrigerator according to claim 8 or 9, wherein the partition portion further has a middle partition for covering the temperature sensor or the deodorizing device.

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