Fully-sealed air duct assembly, refrigeration air circulation system and refrigerator

Abstract

The utility model relates to the technical field of refrigerators, and provides a fully-sealed air duct assembly, which comprises an air duct cover plate, a sealing plate is arranged between the air duct cover plate and the base plate; and the sealing plate is made of a flexible material and is configured to be in surface contact fit with the air duct cover plate to form a sealing structure. Therefore, the sealing plate made of the flexible material is arranged between the air duct cover plate and the base plate; by utilizing the characteristic that the flexible material is easy to deform, fine gaps are filled when the flexible material is matched with the air duct cover plate, so that the generation probability of the gaps is reduced, the overall sealing performance of the air duct assembly is improved, and full sealing of the air duct assembly is realized. The utility model further provides a refrigeration air circulation system which can form independent air circulation. The utility model further provides a refrigerator, independent air circulation is achieved for the refrigeration chamber, air mixing with other chambers is avoided, and the situation that peculiar smells of articles stored in other chambers pollute the articles in the refrigeration chamber is avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of refrigerators, and in particular relates to a fully sealed air duct component, a refrigeration air circulation system and a refrigerator. Background Art

[0002] The air duct of an existing refrigerator is usually formed by buckling a cover plate and a base together. Since the base is a plastic part with a small deformation, there is a gap at the joint of the two. In order to avoid air leakage and loss of cold, it is usually necessary to seal the joint of the two.

[0003] Since the base is not easily deformed, it is easy to have tiny gaps in some parts, causing leakage. The cover plate usually has air duct grooves, and the irregular direction of the air duct increases the probability of leakage. Since the leakage location is usually hidden and small in size, it is difficult to detect and repair.

[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 a fully sealed air duct assembly to solve the technical problem of imperfect sealing of the air duct assembly.

[0006] In order to solve the above problems, the utility model provides a fully sealed air duct assembly, including an air duct cover plate, a base plate is arranged on the back side of the air duct cover plate; a sealing plate is arranged between the air duct cover plate and the base plate; the sealing plate is made of a flexible material and is configured to form a surface contact with the air duct cover plate to form a sealing structure.

[0007] According to the fully sealed air duct assembly of the utility model, the sealing plate is made of foam plastic, silica gel or rubber.

[0008] According to the fully sealed air duct assembly of the utility model, a fan cavity is opened on the air duct cover plate, and a centrifugal fan is installed in the fan cavity;

[0009] The air duct cover plate is also provided with a main air duct connected to the fan cavity; the main air duct extends to the side position of the air duct cover plate to form a main air supply port.

[0010] According to the fully sealed air duct assembly of the utility model, the main air duct extends to two side surfaces of the air duct cover plate respectively, and a group of main air supply ports is formed on each side surface.

[0011] According to the fully sealed air duct assembly of the utility model, the air duct cover plate is provided with a first branch air duct and a second branch air duct connected to the fan chamber; a first branch air door is provided at the intersection of the fan chamber and the first branch air duct, and a second branch air door is provided at the intersection of the fan chamber and the second branch air duct;

[0012] The first branch damper is configured to control the air volume in the first branch air duct by controlling the opening of the first branch damper; the second branch damper is configured to control the air volume in the second branch air duct by controlling the opening of the second branch damper;

[0013] The air duct cover plate is provided with a first branch air supply port connected to the first branch air duct and a second branch air supply port connected to the second branch air duct.

[0014] According to the fully sealed air duct assembly of the utility model, a decorative plate is arranged on the front of the air duct cover plate; and a decorative light strip is arranged on both sides of the air duct cover plate.

[0015] According to the fully sealed air duct assembly of the utility model, the decorative light strip is a cold light source.

[0016] According to the fully sealed air duct assembly of the utility model, the decorative light strip is an LED light strip.

[0017] A refrigerated air circulation system has the fully sealed air duct assembly, the air duct cover is recessed to form a clearance space, an evaporator is installed in the clearance space; the air duct cover is also provided with a plurality of return air ports located below the clearance space.

[0018] A refrigerator comprises the refrigerating air circulation system.

[0019] In summary, the utility model sets a sealing plate made of a flexible material between the air duct cover plate and the base plate; utilizes the easy deformation property of the flexible material to fill the tiny gaps when cooperating with the air duct cover plate, thereby reducing the probability of gaps, thereby improving the overall sealing performance of the air duct assembly and achieving full sealing of the air duct assembly. The utility model also provides a refrigerated air circulation system that can form an independent air circulation. The utility model also provides a refrigerator that realizes independent air circulation for the refrigerated compartment, does not mix with other compartments, and avoids the odor of items stored in other compartments from contaminating the items in the refrigerated compartment. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of the utility model;

[0021] Figure 2 yes Figure 1 The structural diagram of the middle A direction;

[0022] Figure 3 yes Figure 1 Schematic diagram of the internal structure in the middle A direction;

[0023] Figure 4 yes Figure 1 A schematic structural diagram of an embodiment of the middle B direction;

[0024] Figure 5 yes Figure 1 A schematic structural diagram of an embodiment of the middle B direction;

[0025] In the figure: 1- air duct cover, 11- main air supply outlet, 12- return air outlet, 13- water guide inclined plate, 131- water collection nozzle; 14- water guide bottom plate, 15- first branch air supply outlet, 16- second branch air supply outlet, 17- main air duct, 18- first branch air duct, 181- first branch air door; 19- second branch air duct, 191- second branch air door; 2- centrifugal fan, 21- water outlet; 3- base plate, 4- clearance space, 5- junction box, 6- decorative plate, 61- decorative light strip; 7- ion generator, 8- sealing plate. DETAILED DESCRIPTION

[0026] See also Figure 1 The utility model provides a fully sealed air duct assembly, including an air duct cover plate 1, a base plate 3 is arranged on the back of the air duct cover plate 1; a sealing plate 8 is arranged between the air duct cover plate 1 and the base plate 3; the sealing plate 8 is made of a flexible material and is configured to form a surface contact with the air duct cover plate 1 to form a sealing structure;

[0027] The utility model utilizes the characteristics of flexible material that is easy to deform, and fills the tiny gaps when it cooperates with the air duct cover plate 1, thereby reducing the probability of gaps, thereby improving the overall sealing performance of the air duct assembly. In addition, after the base plate 3 is installed, a certain extrusion force is applied to the sealing plate 8, so that its deformation amount is increased, the tiny gaps are filled, and the air duct assembly is fully sealed.

[0028] Preferably, the sealing plate 8 of the present invention is made of foam plastic, silica gel or rubber.

[0029] See also Figure 2 and Figure 3 As an implementation, a fan cavity is opened on the air duct cover plate 1, and a centrifugal fan 2 is installed in the fan cavity;

[0030] The air duct cover plate 1 is also provided with a main air duct 17 connected to the fan cavity; the main air duct 17 extends to the side of the air duct cover plate 1 to form a main air supply port 11;

[0031] More preferably, the main air duct 17 extends to two side surfaces of the air duct cover plate 1 respectively, and forms a group of main air supply ports 11 on each side surface; air is supplied through the two groups of main air supply ports 11, thereby improving the cooling efficiency.

[0032] As an embodiment, an ion generator 7 is further provided in the main air duct 17 to sterilize the airflow entering the storage room.

[0033] As an embodiment, the air duct cover plate 1 is provided with a first branch air duct 18 and a second branch air duct 19 connected to the fan cavity; a first branch air door 181 is provided at the intersection of the fan cavity and the first branch air duct 18, and a second branch air door 191 is provided at the intersection of the fan cavity and the second branch air duct 19;

[0034] The first branch damper 181 is configured to control the air volume in the first branch air duct 18 by controlling the opening of the first branch damper 181; the second branch damper 191 is configured to control the air volume in the second branch air duct 19 by controlling the opening of the second branch damper 191;

[0035] See also Figure 4 The air duct cover plate 1 is provided with a first branch air supply port 15 connected to the first branch air duct 18 and a second branch air supply port 16 connected to the second branch air duct 19;

[0036] The first branch air outlet 15 and the second branch air outlet 16 can supply air to the independent sub-chambers respectively, so as to realize different temperature control of each sub-chamber. For example, the first branch air outlet 15 controls the temperature of the sub-chamber connected to it at 0°C; the second branch air outlet 16 controls the temperature of the sub-chamber connected to it at 5°C; and the two sub-chambers store different items respectively.

[0037] As an implementation mode, the first branch air supply outlet 15 is arranged in the lower middle part of the air duct cover 1, and the second branch air supply outlet 16 is opened near the bottom of the air duct cover 1; thereby, two independent upper and lower chambers can be set up to store different items respectively.

[0038] The utility model also provides a refrigerated air circulation system, which has the above-mentioned air duct assembly; the air duct cover plate 1 is recessed to form a clearance space 4, and an evaporator is installed in the clearance space 4; the air duct cover plate 1 is also provided with a plurality of return air ports 12 located below the clearance space 4;

[0039] The refrigeration air circulation system of the utility model can be arranged near the back of the inner tank, and the centrifugal fan 2 rotates to send the cold energy generated by the evaporator to the main air duct 17, the first branch air duct 18 or the second branch air duct 19, thereby controlling the temperature of each room or sub-chamber in the inner tank. The airflow flows back from the return air port 12 to form a complete air cycle.

[0040] Furthermore, foam is provided in the clearance space 4 to absorb condensed water.

[0041] As an embodiment, a water guide inclined plate 13 is provided below the clearance space 4, and a water guide bottom plate 14 is provided below the water guide inclined plate 13, which is used to collect and discharge the generated condensed water.

[0042] Furthermore, the water guide inclined plates 13 are two pieces and are arranged in a V shape, and the connection position of the two water guide inclined plates 13 forms a water collection nozzle 131 to collect and drip the condensed water.

[0043] See also Figure 5 The front of the air duct cover plate 1 is provided with a decorative plate 6 to cover the air duct cover plate 1, so that the front looks neat and tidy and improves the aesthetics.

[0044] Furthermore, a decorative light bar 61 is provided on both sides of the air duct cover plate 1, respectively, to illuminate the local areas on both sides of the air duct cover plate 1. Optionally, the decorative light bar 61 can emit single-color or multi-color colored light, which has a good decorative effect and attracts customers to buy.

[0045] Preferably, the decorative light bar 61 of the utility model is a cold light source, which reduces heat and avoids temperature fluctuations in the storage compartment. Preferably, the decorative light bar 61 is an LED light bar, which generates little heat and has low power consumption.

[0046] Better yet, a junction box 5 is further provided at the lower side of the air duct cover plate 1 to facilitate centralized installation of circuits and circuit components.

[0047] Furthermore, a water outlet groove 21 is provided on the side wall of the fan cavity to facilitate the outflow of condensed water in the fan cavity. Optionally, a water outlet groove 21 is provided at the position of the second branch damper 191 to prevent condensed water from accumulating there.

[0048] The utility model also provides a refrigerator having the above-mentioned refrigeration air circulation system; independent air circulation is realized for the refrigeration compartment, and the air is not mixed with other compartments, so as to avoid the peculiar smell of the articles stored in other compartments from contaminating the articles in the refrigeration compartment.

[0049] In summary, the utility model provides a fully sealed air duct assembly, by setting a sealing plate of a flexible material between the air duct cover plate and the base plate; utilizing the easy deformation characteristics of the flexible material, when cooperating with the air duct cover plate, the fine gap is filled, thereby reducing the probability of gap generation, thereby improving the overall sealing performance of the air duct assembly, and achieving full sealing of the air duct assembly. The utility model also provides a refrigerated air circulation system that can form an independent air circulation. The utility model also provides a refrigerator that realizes independent air circulation for the refrigerated compartment, does not mix with other compartments, and avoids the odor of items stored in other compartments from contaminating the items in the refrigerated compartment.

[0050] 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. A fully sealed air duct assembly, characterized in that: It comprises an air duct cover plate, a base plate is arranged on the back side of which; a sealing plate is arranged between the air duct cover plate and the base plate; the sealing plate is made of a flexible material and is configured to form a surface contact with the air duct cover plate to form a sealing structure.

2. The fully sealed air duct assembly according to claim 1, characterized in that: The sealing plate is made of foam plastic, silica gel or rubber.

3. The fully sealed air duct assembly according to claim 1, characterized in that: The air duct cover plate is provided with a fan cavity, and a centrifugal fan is installed in the fan cavity; The air duct cover plate is also provided with a main air duct connected to the fan cavity; the main air duct extends to the side position of the air duct cover plate to form a main air supply port.

4. The fully sealed air duct assembly according to claim 3, characterized in that: The main air duct extends to two side surfaces of the air duct cover plate respectively, and a group of main air supply ports is formed on each side surface.

5. The fully sealed air duct assembly according to claim 3, characterized in that: The air duct cover plate is provided with a first branch air duct and a second branch air duct connected to the fan cavity; a first branch air door is provided at the intersection of the fan cavity and the first branch air duct, and a second branch air door is provided at the intersection of the fan cavity and the second branch air duct; The first branch damper is configured to control the air volume in the first branch air duct by controlling the opening of the first branch damper; the second branch damper is configured to control the air volume in the second branch air duct by controlling the opening of the second branch damper; The air duct cover plate is provided with a first branch air supply port connected to the first branch air duct and a second branch air supply port connected to the second branch air duct.

6. The fully sealed air duct assembly according to claim 1, characterized in that: A decorative plate is arranged on the front of the air duct cover plate; and a decorative light strip is arranged on both sides of the air duct cover plate.

7. The fully sealed air duct assembly according to claim 6, characterized in that: The decorative light strip is a cold light source.

8. The fully sealed air duct assembly according to claim 7, characterized in that: The decorative light strip is an LED light strip.

9. A refrigerated air circulation system, comprising a fully sealed air duct assembly as claimed in any one of claims 1 to 8, characterized in that: The air duct cover plate is recessed to form a clearance space, in which an evaporator is installed; the air duct cover plate is also provided with a plurality of return air ports located below the clearance space.

10. A refrigerator, characterized in that: A refrigerated air circulation system as claimed in claim 9.

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