Air duct assembly with independent refrigerating chamber and air supply chamber and refrigerator

Abstract

The utility model relates to the technical field of refrigeration equipment, and provides an air duct assembly with an independent refrigeration chamber and an independent air supply chamber, which comprises a vertically arranged air duct plate, and the middle position of the air duct plate is connected with a horizontally arranged diaphragm plate; an air supply chamber is formed above the transverse partition plate, and a refrigeration chamber is formed below the transverse partition plate; an evaporator is mounted in the refrigeration chamber; a circulating fan is arranged on the transverse partition plate; the air duct plate is further provided with an air supply outlet communicating with the air supply cavity. The side face, facing the refrigeration cavity, of the air duct plate is provided with a plurality of vertically-arranged air return partition plates, and an air return duct is formed between every two adjacent air return partition plates. And the lower port of the air return duct extends to the outside of the refrigeration chamber. Therefore, by arranging the vertical air return duct, the air flow does not need to be reversed in the flowing process, the air resistance is reduced, and the circulation smoothness is improved. The utility model further provides the refrigerator, the space above the step structure is fully utilized, and the storage function is expanded.

Description

Technical Field

[0001] The utility model belongs to the technical field of refrigeration equipment, and in particular relates to an air duct component and a refrigerator with an independent refrigeration chamber and an air supply chamber. Background Art

[0002] In existing freezers, such as those described in Chinese patents CN113899143B and CN113883799A, the evaporator compartment is connected to the air duct, and a circulating airflow is formed through a fan. The gas needs to switch directions many times during the flow of the evaporator compartment and the air duct, which increases the wind resistance, thereby reducing the smoothness of the air circulation, and further affecting the refrigeration effect in the storage room.

[0003] For example, the freezer structure described in Chinese patent CN213747437U usually has a step structure on the inner tank of the freezer in order to make room for the compressor. The air duct assembly is usually arranged on the inner tank wall above the step surface, occupying a part of the step surface, and the width of the remaining step surface does not exceed 200mm, which is not used to place items, thus causing idle space waste. At the same time, the return air vent is usually opened at the bottom of the air duct plate, which has a small area and is easily blocked by stored items, affecting the normal circulation of the refrigeration airflow.

[0004] In summary, the prior art obviously has inconveniences and defects in practical use, so it is necessary to improve it. Utility Model Content

[0005] In view of the above-mentioned defects, the utility model mainly provides an air duct assembly with an independent refrigeration chamber and an air supply chamber to solve the technical problem of large wind resistance of the air duct assembly.

[0006] In order to solve the above problems, the utility model provides an air duct assembly with an independent refrigeration chamber and an air supply chamber, comprising a vertically arranged air duct plate, the middle part of which is connected to a horizontally arranged transverse partition; an air supply chamber is formed above the transverse partition, and a refrigeration chamber is formed below the transverse partition; an evaporator is installed in the refrigeration chamber; a fan hole connecting the air supply chamber and the refrigeration chamber is opened on the transverse partition, and a circulating fan is arranged in the fan hole;

[0007] The air duct plate is also provided with an air supply port connected to the air supply chamber; the side of the air duct plate facing the refrigeration chamber is provided with a plurality of vertically arranged return air baffles, and a return air duct is formed between two adjacent return air baffles; the lower port of the return air duct extends to the outside of the refrigeration chamber.

[0008] According to the utility model of the air duct assembly with independent refrigeration chamber and air supply chamber, the side of the air duct plate facing the air supply chamber has multiple vertically arranged air supply baffles, and an air supply duct is formed between two adjacent air supply baffles; each air supply duct is provided with the air supply port.

[0009] According to the air duct assembly with independent refrigeration chamber and air supply chamber of the utility model, two rows of air supply ports are arranged on the air duct plate, and the two rows of air supply ports are respectively close to the top and the bottom of the air supply chamber.

[0010] According to the air duct assembly with independent refrigeration chamber and air supply chamber of the utility model, a cold storage component is arranged in the air supply chamber.

[0011] According to the air duct assembly with independent refrigeration chamber and air supply chamber of the utility model, the cold storage member is flat in shape and is arranged on the inner wall of the air supply chamber and / or the top surface of the transverse partition.

[0012] According to the air duct assembly with independent refrigeration chamber and air supply chamber of the utility model, the circulation fan is an axial flow fan or a centrifugal fan.

[0013] According to the air duct assembly with independent refrigeration chamber and air supply chamber of the utility model, a plurality of return air partitions are arranged at equal intervals.

[0014] A refrigerator comprises a cabinet body and a cabinet cover; the cabinet body is provided with an inner liner, and the inner liner is provided with the air duct assembly;

[0015] The inner tank has a step structure, which includes a step facade and a step transverse surface; the air duct plate is vertically arranged in the inner tank, and each return air partition is in contact with the step facade, and the transverse partition divides the space in the inner tank above the step transverse surface into the air supply chamber and the refrigeration chamber.

[0016] According to the refrigerator of the utility model, a special storage box is provided in the air supply chamber; and a hatch cover is provided on the top of the special storage box.

[0017] According to the refrigerator of the present invention, the dedicated storage box is made of plastic or metal.

[0018] In summary, the utility model has an air duct assembly with an independent refrigeration chamber and an air supply chamber, by setting a vertical return air duct, and at the same time setting a circulation fan between the mutually isolated air supply chamber and the refrigeration chamber; and the air pressure in the air supply chamber is increased to transport the airflow outward. The airflow does not need to change direction during the flow process, which reduces wind resistance, improves the smoothness of the circulation, and ensures the refrigeration effect. The utility model also provides a refrigerator with an air duct assembly; a complete storage compartment is formed in the refrigerator, and the upper space of the step structure is fully utilized to expand the storage function. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a cross-sectional view of the air duct assembly of the utility model;

[0020] Figure 2It is a three-dimensional structural schematic diagram of the air duct assembly of the utility model;

[0021] Figure 3 yes Figure 1 A schematic structural diagram of an embodiment;

[0022] Figure 4 It is a structural schematic diagram of a refrigerator of the utility model;

[0023] Figure 5 yes Figure 4 Schematic diagram of the internal structure;

[0024] Figure 6 yes Figure 5 The main view of the middle area;

[0025] In the figure: 1- air duct plate, 11- transverse partition, 12- evaporator, 13- circulating fan, 14- air supply port, 15- return air partition, 151- return air duct; 16- air supply partition, 161- air supply duct; 2- cabinet, 21- cabinet cover, 22- liner, 23- step vertical surface, 24- step horizontal surface; 3- special storage box, 31- cabin cover; 100- air supply chamber, 200- refrigeration chamber, 300- cold storage parts. DETAILED DESCRIPTION

[0026] See also Figure 1 The utility model provides an air duct assembly with an independent refrigeration chamber and an air supply chamber, comprising a vertically arranged air duct plate 1, the middle part of which is connected to a horizontally arranged transverse partition 11; an air supply chamber 100 is formed above the transverse partition 11, and a refrigeration chamber 200 is formed below the transverse partition 11; an evaporator 12 is installed in the refrigeration chamber 200; a fan hole connecting the air supply chamber 100 and the refrigeration chamber 200 is opened on the transverse partition 11, and a circulating fan 13 is arranged in the fan hole;

[0027] The air duct plate 1 is also provided with an air supply port 14 connected to the air supply chamber 100; Figure 2 The side of the air duct plate 1 facing the refrigeration chamber 200 has a plurality of vertically arranged return air baffles 15, and a return air duct 151 is formed between two adjacent return air baffles 15; the lower end of the return air duct 151 extends to the outside of the refrigeration chamber 200;

[0028] Preferably, the plurality of return air partitions 15 are arranged at equal intervals, and the widths of the return air ducts 151 are the same.

[0029] The external air enters the refrigeration chamber 200 along the return air ducts 151, and the temperature of the external air is reduced by heat exchange with the evaporator 12 to form a cold air flow. The circulating fan 13 rotates to draw the cold air flow in the refrigeration chamber 200 into the air supply chamber 100. The amount of cold air in the air supply chamber 100 increases continuously, so that the air pressure in the air supply chamber 100 increases, and then flows out through the air supply port 14.

[0030] Preferably, the circulation fan 13 of the utility model is an axial flow fan, which is small in size and has a vertical air supply direction. The airflow does not need to be reversed during the transportation process, thereby reducing wind resistance.

[0031] The air duct assembly of the utility model is provided with a vertical return air duct 151, and a circulation fan 13 is provided between the mutually isolated air supply chamber 100 and the refrigeration chamber 200; and the air flow is transported outward by increasing the air pressure in the air supply chamber 100. The air flow does not need to be reversed during the flow process, which reduces wind resistance, improves the smoothness of the circulation, and ensures the refrigeration effect.

[0032] Furthermore, two rows of air outlets 14 are provided on the air duct plate 1, and the two rows of air outlets 14 are respectively close to the top and the bottom of the air supply chamber 100, thereby increasing the coverage area of ​​the air outlet.

[0033] As an embodiment, the air duct plate 1 has a plurality of vertically arranged air supply baffles 16 on the side facing the air supply chamber 100, and an air supply duct 161 is formed between two adjacent air supply baffles 16; each air supply duct 161 is provided with the air supply port 14; the air flow can flow along the air supply duct 161 and flow out at the air supply port 14, thereby reducing turbulence and making the air outlet process smoother.

[0034] See also Figure 3 As an embodiment, the utility model has a cold storage component 300 in the air supply chamber 100; during normal refrigeration cycle operation, the cold storage component 300 stores cold energy. When the evaporator 12 stops refrigeration or keeps warm, the cold storage component 300 releases cold energy, and the circulating fan 13 can still deliver cold air flow to the outside by rotating.

[0035] Preferably, the cooling element 300 of the present invention is flat in shape and is disposed on the inner wall of the air supply chamber 100 and / or the top surface of the partition plate 11 .

[0036] The optional cold storage member 300 of the present invention may be a metal plate, or a cold storage box filled with a cold storage medium. Those skilled in the art may apply other known cold storage members to the present invention.

[0037] See also Figure 4 The utility model also provides a refrigerator, including a cabinet body 2 and a cabinet cover 21; the cabinet body 2 is provided with an inner liner 22, and the inner liner 22 is provided with the air duct assembly;

[0038] See also Figure 5 The inner tank 22 has a step structure, and the step structure includes a step vertical surface 23 and a step horizontal surface 24; the air duct plate 1 is vertically arranged in the inner tank 22, and each return air partition 15 is attached to the step vertical surface 23, and the horizontal partition 11 divides the space in the inner tank 22 above the step horizontal surface 24 into the air supply chamber 100 and the refrigeration chamber 200;

[0039] The two side surfaces of the air duct plate 1 of the utility model are in a sealed fit with the inner wall of the inner liner 22 ; the air duct plate 1 forms a complete storage compartment in the inner liner 22 .

[0040] The return air partition 15 is arranged close to the step facade 23, and the airflow in the storage compartment in the inner liner 22 enters from the lower port of the return air duct 151, and then flows back to the storage compartment from the air supply port 14 on the air duct plate 1. Since the lower port of the return air duct 151 is vertically downward, and each return air duct 151 is distributed along the width direction of the inner liner 22, it is not easy to be blocked by the placed objects, so the smoothness of the return air is guaranteed.

[0041] As an embodiment, a special storage box 3 is provided in the air supply chamber 100; the special storage box 3 is separated from the storage compartment and can be used to store specific items. The special storage box 3 exchanges heat with the cold air flow in the air supply chamber 100 through its box wall. Preferably, a hatch 31 is provided on the top of the special storage box 3; an independent closed special storage space is formed in the special storage box 3.

[0042] As an embodiment, the special storage box 3 is made of plastic material with poor thermal conductivity, so that the temperature in the special storage box 3 is much higher than the temperature of the storage compartment of the refrigerator. If the temperature in the special storage box 3 reaches about 5°C, it can be used to store cooked food, fruits and vegetables, or thawed items.

[0043] As an embodiment, the special storage box 3 is made of metal, preferably aluminum alloy, which has good thermal conductivity. By taking advantage of the lower temperature in the air supply chamber 100, the temperature in the special storage box 3 is lower than that in the storage compartment of the refrigerator. It can be used to store quick-frozen food, cold drinks and other items.

[0044] The periphery of the top opening of the special storage box 3 of the utility model has an outer flange structure; the outer flange structure can form a sealed connection with the inner wall of the air supply chamber 100 to prevent air leakage from the top of the air supply chamber 100.

[0045] The cabinet cover 21 may also be used to cover and seal the top of the air supply chamber 100 .

[0046] See also Figure 6 As an embodiment, the circulation fan 13 of the utility model is a centrifugal fan; after the cold air flow is drawn into the refrigeration chamber 200, it can be directly blown toward the air supply port 14.

[0047] Preferably, the storage box 3 is arranged close to the end of the air supply partition 16 to close the air supply duct 161. The air flow is gathered in the air supply duct 161 to increase the air pressure, increase the speed of the air flow out of the air supply port 14, extend the transmission distance in the storage room, and promote uniform temperature in the cabinet.

[0048] Furthermore, the cold storage member 300 of this embodiment is arranged on the transverse partition 11, which is consistent with the air supply direction of the centrifugal fan, so as to facilitate the accumulation and release of cold energy.

[0049] The utility model utilizes the space above the step structure to arrange a special storage box 3, which can independently store specific items, thereby improving the utilization efficiency of the space in the refrigerator and expanding the storage function.

[0050] In summary, the utility model provides an air duct assembly with an independent refrigeration chamber and an air supply chamber, by setting a vertical return air duct, and setting a circulation fan between the mutually isolated air supply chamber and the refrigeration chamber; and the air pressure in the air supply chamber is increased to transport the airflow outward. The airflow does not need to change direction during the flow process, which reduces wind resistance, improves the smoothness of the circulation, and ensures the refrigeration effect. The utility model also provides a refrigerator with an air duct assembly; a complete storage compartment is formed in the refrigerator, and the upper space of the step structure is fully utilized to expand the storage function.

[0051] Of course, the present invention may have many other embodiments. Without departing from the spirit and essence of the present invention, technicians familiar with the field can make various corresponding changes and deformations based on the present invention, but these corresponding changes and deformations should all fall within the scope of protection of the claims attached to the present invention.

Claims

1. An air duct assembly having an independent refrigeration chamber and an air supply chamber, characterized in that: It comprises a vertically arranged air duct plate, the middle part of which is connected to a horizontally arranged transverse partition; an air supply chamber is formed above the transverse partition, and a refrigeration chamber is formed below the transverse partition; an evaporator is installed in the refrigeration chamber; a fan hole connecting the air supply chamber and the refrigeration chamber is opened on the transverse partition, and a circulating fan is arranged in the fan hole; The air duct plate is also provided with an air supply port connected to the air supply chamber; the side of the air duct plate facing the refrigeration chamber is provided with a plurality of vertically arranged return air baffles, and a return air duct is formed between two adjacent return air baffles; the lower port of the return air duct extends to the outside of the refrigeration chamber.

2. The air duct assembly with independent refrigeration chamber and air supply chamber according to claim 1, characterized in that: The side of the air duct plate facing the air supply chamber is provided with a plurality of vertically arranged air supply baffles, and an air supply duct is formed between two adjacent air supply baffles; and the air supply port is arranged in each air supply duct.

3. The air duct assembly with independent refrigeration chamber and air supply chamber according to claim 1, characterized in that: The air duct plate is provided with two rows of air supply ports, and the two rows of air supply ports are respectively close to the top and the bottom of the air supply chamber.

4. The air duct assembly with independent refrigeration chamber and air supply chamber according to claim 1, characterized in that: A cold storage component is arranged in the air supply chamber.

5. The air duct assembly with independent refrigeration chamber and air supply chamber according to claim 4, characterized in that: The cold storage member is flat in shape and is arranged on the inner wall of the air supply chamber and / or the top surface of the transverse partition.

6. The air duct assembly with independent refrigeration chamber and air supply chamber according to claim 1, characterized in that: The circulating fan is an axial flow fan or a centrifugal fan.

7. The air duct assembly with independent refrigeration chamber and air supply chamber according to claim 1, characterized in that: The plurality of return air partitions are arranged at equal intervals.

8. A refrigerator, characterized in that: It comprises a cabinet body and a cabinet cover; the cabinet body is provided with an inner tank, and the inner tank is provided with an air duct assembly as claimed in any one of claims 1 to 7; The inner tank has a step structure, which includes a step facade and a step transverse surface; the air duct plate is vertically arranged in the inner tank, and each return air partition is in contact with the step facade, and the transverse partition divides the space in the inner tank above the step transverse surface into the air supply chamber and the refrigeration chamber.

9. The refrigerator according to claim 8, characterized in that: A special storage box is arranged in the air supply chamber; a hatch cover is arranged on the top of the special storage box.

10. The refrigerator according to claim 9, characterized in that: The special storage box is made of plastic or metal.

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