Refrigeration air duct components and refrigerator

Abstract

The refrigeration air duct assembly and refrigerator of this application include an air duct housing, an evaporator, and a fan. The air duct housing forms a first air duct, a second air duct, and a diversion air duct. The first air duct and the second air duct are connected. The diversion air duct is independently arranged relative to the first and second air ducts. The air duct housing is provided with a first air outlet and a second air outlet, which are correspondingly arranged and surround the corresponding first air outlet. The second air outlet is connected to the diversion air duct, and the first air outlet is connected to the second air duct. The evaporator is housed in the first air duct and connected to the air duct housing. The fan is arranged in the passage connecting the first and second air ducts and connected to the air duct housing. This allows the refrigeration air duct assembly to mix some of the hot air in the refrigerator compartment with the low-temperature cold air passing through the evaporator in advance. This mixing process can significantly increase the final outlet temperature of the air delivered into the refrigerator compartment.

Description

Technical Field

[0001] This utility model belongs to the field of refrigerator refrigeration technology, and in particular relates to a refrigeration air duct component and a refrigerator. Background Technology

[0002] Frost-free refrigerators, also known as air-cooled refrigerators, are the mainstream type of modern household refrigerators. They rely on air ducts to deliver cold air, which has passed through the evaporator, to the refrigerator compartments to achieve cooling. However, this technology has several obvious drawbacks: First, the temperature of the cold air after being cooled by the evaporator is too low. If the air outlet temperature in the refrigeration duct is not properly controlled, it can easily cause food inside the refrigerator to freeze. Second, the humidity of the air inside the refrigerator compartment decreases significantly after passing through the evaporator. The dry environment is not conducive to the preservation of vegetables and other foods, and can easily cause moisture loss and quality degradation. Utility Model Content

[0003] In view of this, it is necessary to provide a refrigeration air duct assembly and a refrigerator for solving the above-mentioned technical problems.

[0004] A refrigerated air duct assembly, comprising: The air duct shell has a first air duct, a second air duct, and a diversion air duct. The first air duct is connected to the second air duct, and the diversion air duct is independently set relative to the first air duct and the second air duct. The air duct shell has a first air outlet and a second air outlet. The first air outlet and the second air outlet are correspondingly set, and the second air outlet surrounds the corresponding first air outlet. The second air outlet is connected to the diversion air duct, and the first air outlet is connected to the second air duct. An evaporator is housed within the first air duct and connected to the air duct housing; A fan is installed on the passage connecting the first air duct and the second air duct and is connected to the air duct housing. The fan has a fan inlet and a fan outlet. The fan inlet is connected to the first air duct and the fan outlet is connected to the second air duct. Both the first air duct and the diversion air duct are used to connect to the cold storage room.

[0005] Understandably, by designing the air duct, some of the hot air inside the refrigerator can be mixed with the low-temperature cold air passing through the evaporator in advance. This mixing process can significantly increase the final outlet temperature of the air duct component that enters the refrigerator. This not only avoids the problem of food freezing due to direct blowing of low-temperature cold air, but also prevents the humidity in the air duct component from being too low by mixing in the air that already has a certain level of humidity. This slows down the quality decline of vegetables and other foods due to excessive moisture loss and significantly improves the preservation effect.

[0006] In one embodiment, the number of the first air outlets is set to multiple; Multiple first air outlets are located around the air outlet of the fan.

[0007] Understandably, placing the first air outlet outside the fan outlet can effectively prevent low-temperature cold air from blowing directly into the first air outlet, thus playing a good role in buffering and guiding the low-temperature cold air. This structural design can significantly improve the air outlet uniformity of the refrigeration air duct component, making the temperature distribution in the refrigeration room more stable and further improving the food preservation effect.

[0008] In one embodiment, a plurality of the first air outlets are arranged symmetrically with respect to the central axis of the fan.

[0009] Understandably, the arrangement of multiple primary air outlets symmetrically around the central axis of the fan can effectively enhance the uniformity and stability of the air supply of the refrigeration duct assembly, avoid local overcooling or airflow dead zones, thereby improving the uniformity of temperature distribution in the refrigeration chamber and enhancing the overall preservation effect.

[0010] In one embodiment, the duct housing includes an inner housing, a middle housing, and an outer housing. The middle housing is disposed between the inner housing and the outer housing and is connected and sealed to both the inner housing and the outer housing. Furthermore, the outer housing is also connected and sealed to the inner housing. The inner shell encloses to form the first air duct, the middle shell and the outer shell enclose to form the second air duct, the outer shell and the inner shell enclose to form the first air duct, the outer shell and the middle shell enclose to form the second air duct, and the first air duct and the second air duct are combined to form the air duct.

[0011] In one embodiment, a first extending protrusion is formed on the middle housing, and the first extending protrusion surrounds and forms the first air outlet; The outer casing has a second extended protrusion, which is correspondingly disposed to the first extended protrusion. The first extended protrusion can extend into the corresponding second extended protrusion, and the first extended protrusion and the second extended protrusion together form the second air outlet.

[0012] Understandably, the above structural design ensures that when the refrigerated air duct assembly is venting, some of the hot air inside the refrigeration chamber can wrap around the low-temperature cold air and form an effective mixture.

[0013] In one embodiment, the second extension protrusion extends outward relative to the corresponding first extension protrusion.

[0014] In one embodiment, in the direction of air flow within the first air duct, the middle housing has a first end and a second end, both of which are configured as closed structures; The first end is engaged and positioned with the inner shell and the outer shell in a face-to-face manner.

[0015] In one embodiment, the first end portion includes a first end face and a second end face, wherein the first end face and the second end face are set at an acute angle. The first end face abuts and limits the outer shell, and the second end face abuts and limits the inner shell.

[0016] Understandably, the middle shell, through its acute-angled first and second end faces, abuts and limits contact with the outer and inner shells, respectively. This structure effectively constrains the assembly position of the middle shell between the outer and inner shells, not only improving the alignment accuracy and connection rigidity between the middle shell and the inner and outer shells, but also enhancing the overall assembly convenience and structural stability of the duct housing.

[0017] In one embodiment, the fan is installed inside the middle housing.

[0018] This application also provides a refrigerator, including the above-described refrigeration air duct assembly.

[0019] Due to the application of the above technical solution, this utility model has the following advantages compared with the prior art: The refrigerator duct assembly and refrigerator for which this application seeks protection, through the design of the air duct, can mix some of the hot air in the refrigerator compartment with the low-temperature cold air passing through the evaporator in advance. This mixing process can significantly increase the final outlet air temperature of the refrigerator duct assembly delivered into the refrigerator compartment. This not only avoids the problem of food freezing due to direct blowing of low-temperature cold air, but also prevents the humidity in the outlet air of the refrigerator duct assembly from being too low by mixing in the air that already has a certain humidity in the refrigerator compartment. This slows down the quality decline of vegetables and other foods due to excessive moisture loss and significantly improves the preservation effect. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this application or the conventional technology, the drawings used in the description of the embodiments or the conventional technology will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a structural schematic diagram of the refrigerated air duct assembly provided in this application.

[0022] Figure 2 This is a structural schematic diagram of the refrigerated air duct assembly provided in this application from another perspective.

[0023] Figure 3 for Figure 2 Sectional view of AA.

[0024] Figure 4 for Figure 3 Enlarged view of the middle P section.

[0025] Figure 5 for Figure 3 Enlarged view of the middle Q section.

[0026] Figure 6 This is an exploded view of the refrigerated air duct assembly provided in this application.

[0027] Reference numerals: 100, refrigerated air duct assembly; 10, air duct shell; 11, inner shell; 12, middle shell; 121, first end; 1211, first end face; 1212, second end face; 122, second end; 123, first extension protrusion; 13, outer shell; 131, second extension protrusion; 101, first air duct; 102, second air duct; 103, diversion air duct; 1031, first diversion air duct; 1032, second diversion air duct; 104, first air outlet; 105, second air outlet; 20, evaporator; 30, fan. Detailed Implementation

[0028] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0029] It should be noted that when a component is said to be "located on" another component, it can be directly located on the other component or may have an intervening component. When a component is considered to be "located on" another component, it can be directly located on the other component or may have an intervening component. When a component is considered to be "fixed to" another component, it can be directly fixed to the other component or may have an intervening component.

[0030] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0031] The refrigerated air duct assembly 100 claimed in this application is used in a refrigerator (not shown) for cooling the refrigerator compartment (not shown). Here, the refrigerator is specifically a frost-free refrigerator.

[0032] like Figures 1 to 6 As shown, the refrigerated air duct assembly 100 provided in this application includes an air duct housing 10, an evaporator 20, and a fan 30. The air duct housing 10 forms a first air duct 101, a second air duct 102, and a diversion air duct 103. The first air duct 101 and the second air duct 102 are connected. The diversion air duct 103 is independently arranged relative to the first air duct 101 and the second air duct 102. The air duct housing 10 is provided with a first air outlet 104 and a second air outlet 105. The first air outlet 104 and the second air outlet 105 are correspondingly arranged, and the second air outlet 105 surrounds the corresponding first air outlet 104. Furthermore, the second air outlet 105 is connected to the air duct 103, and the first air outlet 104 is connected to the second air duct 102; the evaporator 20 is housed in the first air duct 101 and connected to the air duct housing 10; the fan 30 is disposed on the passage connecting the first air duct 101 and the second air duct 102 and connected to the air duct housing 10, and the fan 30 has a fan inlet (not shown) and a fan outlet (not shown), the fan inlet is connected to the first air duct 101, and the fan outlet is connected to the second air duct 102; wherein, the first air duct 101 and the air duct 103 are both used to connect to the refrigerator compartment.

[0033] As can be seen from the above, the refrigerated air duct component 100 of this application, through the design of the air duct 103, can mix some of the hot air in the refrigerator with the low-temperature cold air passing through the evaporator 20 in advance. This mixing process can significantly increase the final outlet air temperature of the refrigerated air duct component 100 sent into the refrigerator. This not only avoids the problem of food freezing due to direct blowing of low-temperature cold air, but also avoids the humidity in the outlet air of the refrigerated air duct component 100 being too low due to the mixing of the air with a certain humidity in the refrigerator. This slows down the quality decline of vegetables and other foods due to excessive moisture loss and significantly improves the preservation effect.

[0034] It should be noted that, since the refrigerated air duct assembly 100 of this application uses hot air to insulate low-temperature cold air to achieve the final air outlet, the refrigerated air duct assembly 100 does not need to make the volume of the evaporator 20 large, thereby reducing the space required for the evaporator 20 to be assembled in the air duct housing 10, and also helping to reduce the final air outlet speed of the refrigerated air duct assembly 100, thus playing a role in noise reduction.

[0035] like Figures 1 to 6 As shown, in one embodiment, the duct housing 10 includes an inner housing 11, a middle housing 12, and an outer housing 13. The middle housing 12 is disposed between the inner housing 11 and the outer housing 13, and is connected and sealed to both the inner housing 11 and the outer housing 13. Furthermore, the outer housing 13 is also connected and sealed to the inner housing 11. That is, in this embodiment, the middle housing 12 is disposed between a portion of the inner housing 11 and a portion of the outer housing 13. It should be noted that the middle housing 12, the inner housing 11, and the outer housing 13, as well as the inner housing 11 and the outer housing 13, can be specifically connected by welding.

[0036] Here, as Figure 3 As shown, the inner shell 11 encloses to form a first air duct 101, the middle shell 12 and the outer shell 13 enclose to form a second air duct 102, the outer shell 13 and the inner shell 11 enclose to form a first air duct 1031, the outer shell 13 and the middle shell 12 enclose to form a second air duct 1032, and the first air duct 1031 and the second air duct 1032 are combined to form an air duct 103.

[0037] like Figure 6 As shown, in this embodiment, the evaporator 20 is installed on the inner shell 11 at a location not connected to the middle shell 12; while the fan 30 is installed inside the middle shell 12, so that the evaporator 20 and the fan 30 are staggered in the thickness direction of the air duct shell 10, thereby reducing the overall thickness of the refrigerated air duct assembly 100.

[0038] like Figures 4 to 6 As shown, in one embodiment, in the direction of air flow in the first air duct 1031, the middle shell 12 has a first end 121 and a second end, both of which are configured as closed structures; wherein, the first end 121 abuts and limits the inner shell 11 and the outer shell 13 in a face-to-face manner.

[0039] Here, as Figure 5As shown, the first end 121 includes a first end face 1211 and a second end face 1212, with the first end face 1211 and the second end face 1212 forming an acute angle. The first end face 1211 abuts and limits the outer shell 13, and the second end face 1212 abuts and limits the inner shell 11. This effectively constrains the assembly position of the middle shell 12 between the outer shell 13 and the inner shell 11, which not only improves the alignment accuracy and connection rigidity between the middle shell 12, the inner shell 11, and the outer shell 13, but also enhances the overall assembly convenience and structural stability of the air duct shell 10.

[0040] like Figure 4 , Figure 6 As shown, in one embodiment, a first extending protrusion 123 is formed on the middle shell 12, and the first extending protrusion 123 surrounds and forms a first air outlet 104; a second extending protrusion 131 is formed on the outer shell 13, the second extending protrusion 131 is correspondingly disposed with the first extending protrusion 123, and the first extending protrusion 123 can extend into the corresponding second extending protrusion 131. Furthermore, the first extending protrusion 123 and the second extending protrusion 131 surround and form a second air outlet 105. This ensures that when the refrigerated air duct assembly 100 is venting air, some of the hot air in the refrigeration chamber can wrap around the low-temperature cold air during the venting process and form an effective mixture.

[0041] Here, the second extension protrusion 131 extends outward relative to the corresponding first extension protrusion 123.

[0042] like Figure 1 , Figure 2 and Figure 6 As shown, in one embodiment, the number of first air outlets 104 is set to multiple, and the multiple first air outlets 104 are arranged around the fan air outlet. This can prevent the low-temperature cold air blown out of the fan air outlet from directly blowing into the first air outlet 104, thereby playing a good buffering and guiding role for the low-temperature cold air. This structural design can significantly improve the air outlet uniformity of the refrigeration air duct assembly 100, make the temperature distribution in the refrigeration room more stable, and further improve the food preservation effect.

[0043] like Figure 1 , Figure 2As shown, in one embodiment, a plurality of first air outlets 104 are arranged symmetrically with respect to the central axis of the fan 30. That is, by arranging the plurality of first air outlets 104 symmetrically around the central axis of the fan 30, the refrigerated air duct assembly 100 in this embodiment can effectively enhance the uniformity and stability of the airflow, avoid localized overcooling or dead air zones, thereby improving the temperature distribution uniformity within the refrigerated compartment and enhancing the overall preservation effect. Here, the number of first air outlets 104 is set to four. It is understood that in other embodiments, the number of first air outlets 104 may also be set to six or eight, which will not be elaborated upon here.

[0044] In addition, this application also provides a refrigerator, including the above-described refrigeration air duct assembly 100.

[0045] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0046] Those skilled in the art should recognize that the above embodiments are only used to illustrate the present utility model and are not intended to limit the present utility model. Any appropriate changes and variations made to the above embodiments within the scope of the essential spirit of the present utility model shall fall within the scope of protection claimed by the present utility model.

Claims

1. A refrigerated air duct assembly, characterized by, The refrigerated air duct assembly (100) includes: The air duct housing (10) has a first air duct (101), a second air duct (102) and a diversion air duct (103). The first air duct (101) is connected to the second air duct (102). The diversion air duct (103) is independently set relative to the first air duct (101) and the second air duct (102). The air duct housing (10) has a first air outlet (104) and a second air outlet (105). The first air outlet (104) and the second air outlet (105) are correspondingly set, and the second air outlet (105) surrounds the corresponding first air outlet (104). The second air outlet (105) is connected to the diversion air duct (103), and the first air outlet (104) is connected to the second air duct (102). An evaporator (20) is housed within the first air duct (101) and connected to the air duct housing (10); A fan (30) is disposed on the passage connecting the first air duct (101) and the second air duct (102) and is connected to the air duct housing (10). The fan (30) has a fan inlet and a fan outlet. The fan inlet is connected to the first air duct (101) and the fan outlet is connected to the second air duct (102). The first air duct (101) and the diversion air duct (103) are both used to connect to the cold storage room.

2. The cold aisle assembly of claim 1, wherein, The number of the first air outlet (104) is set to multiple; Multiple first air outlets (104) are disposed around the air outlet of the fan.

3. The cold aisle assembly of claim 2, wherein, Multiple first air outlets (104) are arranged symmetrically with respect to the central axis of the fan (30).

4. The cold aisle assembly of claim 1, wherein, The duct housing (10) includes an inner housing (11), a middle housing (12), and an outer housing (13). The middle housing (12) is disposed between the inner housing (11) and the outer housing (13), and is connected and sealed to both the inner housing (11) and the outer housing (13). Furthermore, the outer housing (13) is also connected and sealed to the inner housing (11). The inner shell (11) encloses to form the first air duct (101), the middle shell (12) and the outer shell (13) enclose to form the second air duct (102), the outer shell (13) and the inner shell (11) enclose to form the first drainage air duct (1031), the outer shell (13) and the middle shell (12) enclose to form the second drainage air duct (1032), and the first drainage air duct (1031) and the second drainage air duct (1032) are combined to form the drainage air duct (103).

5. The cold aisle assembly of claim 4, wherein, A first extension protrusion (123) is formed on the middle shell (12), and the first extension protrusion (123) surrounds and forms the first air outlet (104). The outer casing (13) has a second extension protrusion (131) formed thereon, the second extension protrusion (131) is correspondingly provided with the first extension protrusion (123), and the first extension protrusion (123) can extend into the corresponding second extension protrusion (131), and the first extension protrusion (123) and the second extension protrusion (131) surround each other to form the second air outlet.

6. The cold aisle assembly of claim 5, wherein, The second extension protrusion (131) extends outward relative to the corresponding first extension protrusion (123).

7. The cold aisle assembly of claim 4, wherein, In the direction of air flow within the first air duct (1031), the middle shell (12) has a first end (121) and a second end (122), both of which are configured as closed structures; The first end (121) is in contact with the inner shell (11) and the outer shell (13) respectively in a face-to-face manner.

8. The cold aisle assembly of claim 7, wherein, The first end (121) includes a first end face (1211) and a second end face (1212), and the first end face (1211) and the second end face (1212) are set at an acute angle; The first end face (1211) abuts and limits the outer shell (13), and the second end face (1212) abuts and limits the inner shell (11).

9. The cold aisle assembly of claim 4, wherein, The fan (30) is installed inside the middle casing (12).

10. A refrigerator characterized by comprising: Includes the refrigerated air duct assembly (100) as described in any one of claims 1 to 9.

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