A side air return structure and a refrigerator based on the same

Abstract

The present invention discloses a side air return structure, which includes a refrigerating chamber and a freezing chamber. A refrigerating liner is arranged in the refrigerating chamber, and a refrigerating air inlet is arranged inside the refrigerating liner; a freezing liner is arranged in the freezing chamber, and an evaporator chamber is further arranged in the freezing chamber; the refrigerating liner and the freezing liner are connected through a air supply duct and an air return duct. Refrigerating air return openings are respectively arranged on both sides of the refrigerating liner, and freezing air return openings are respectively arranged on both sides of the bottom of the evaporator chamber; the refrigerating liner and the freezing liner are connected through the air return duct; an evaporator is arranged inside the evaporator chamber, a freezing fan is arranged above the evaporator, support frames are respectively arranged at both ends of the evaporator, and a wind guiding mechanism is arranged at the bottom of the support frame. The wind guiding mechanism includes a first flow guiding plate and a second flow guiding plate; by arranging the air return duct on both sides of the evaporator chamber, the space inside the foam layer can be fully utilized; the thickness of the foam layer on the back of the multi-door single-system air-cooled refrigerator is reduced, and the volume ratio is increased, which can greatly increase the effective volume of the refrigerator.

Description

Technical Field

[0001] The present invention relates to the technical field of refrigerators, and particularly relates to a side air return structure and a refrigerator based on the same. Background Art

[0002] In existing multi-compartment single-system air-cooled refrigerator products, most of the refrigerating air return ducts are placed in the foam layer at the back of the box body. The air return duct has a certain thickness, and in order to avoid condensation on the back of the refrigerator and icing in the air return duct, there are certain spacing requirements from the back and the inner liner. The rear-mounted air return duct structure results in a thickness of the foam layer at the back of the refrigerator of more than 80 mm, occupying a large amount of space in the refrigerator. Especially for shallow box body products, the too thick foam layer at the back causes insufficient depth space in the box body, seriously affecting the user experience.

[0003] For refrigerators with a rear-mounted evaporator, due to the installation of the evaporator and the freezing air duct, sufficient space is required on both sides of the evaporator chamber, and the thickness of the foam layer on both sides is mostly more than 90 mm, resulting in waste of this part of the space. Summary of the Invention

[0004] The purpose of the present invention is to provide a side air return structure and a refrigerator based on the same, and solve the following technical problems:

[0005] For refrigerators with a rear-mounted evaporator, due to the installation of the evaporator and the freezing air duct, sufficient space is required on both sides of the evaporator chamber, and the thickness of the foam layer on both sides is mostly more than 90 mm, resulting in waste of this part of the space.

[0006] The purpose of the present invention can be achieved by the following technical solutions:

[0007] A side air return structure includes a refrigerating chamber and a freezing chamber. A refrigerating liner is arranged in the refrigerating chamber, and a refrigerating air inlet is arranged inside the refrigerating liner; a freezing liner is arranged at the rear part inside the freezing chamber, and an evaporator chamber is also arranged inside the freezing chamber; the refrigerating liner and the freezing liner are connected through a blowing air duct and an air return duct. Refrigerating air return openings are respectively arranged on both sides of the refrigerating liner, and freezing air return openings are respectively arranged on both sides at the bottom of the evaporator chamber;

[0008] The refrigerating liner and the freezing liner are connected through the air return duct; an evaporator is arranged inside the evaporator chamber, a freezing fan is arranged above the evaporator, support frames are respectively arranged at the left and right ends of the evaporator, a wind guiding mechanism is arranged at the bottom of the support frame, and the wind guiding mechanism includes a first guide plate and a second guide plate, and the first guide plate and the second guide plate form a plurality of air ducts.

[0009] In a further solution: the wind guiding mechanism is in an L shape.

[0010] In a further embodiment: A wind guide plate is disposed between the support frame and the side wall of the evaporator chamber. The wind guide plate is located above the refrigerating air return opening and has a certain inclination angle.

[0011] In a further embodiment: One end of the wind guide plate is closely attached to the support frame, and the other end is hermetically connected to the side wall of the evaporator chamber.

[0012] In a further embodiment: The guide vane is inclined 10-30° relative to the horizontal direction.

[0013] In a further embodiment: A refrigerating air return joint is connected to the refrigerating air return opening, a freezing air return joint is connected to the freezing air return opening, and a return air chamber is connected between the refrigerating air return joint and the freezing air return joint.

[0014] In a further embodiment: The support frame and the wind guide plate are made of metal.

[0015] A refrigerator, in which a side part refrigerating and freezing air return mechanism as described above is arranged inside the refrigerator.

[0016] Advantages of the embodiments of the present invention:

[0017] (1) By arranging the air return duct on both sides of the evaporator chamber, the space in the foam layer can be fully utilized; the thickness of the freezing back foam layer of the multi-door single-system air-cooled refrigerator is reduced from 80 mm to 55 mm, and the volume ratio can be increased by more than 2%, which can greatly increase the effective volume of the refrigerator;

[0018] (2) The air guide mechanism at the bottom of the support frame, the air guide plate and the evaporator are used as components, without adding separate parts, with simple structure, simple installation process, low cost and good refrigeration effect;

[0019] (3) The air guide plate divides the space formed by the back of the evaporator chamber and the freezing air duct into upper and lower parts. The lower part forms a duct structure, and multiple duct spaces guide the air flowing back from the refrigerating chamber to the fin surface of the entire evaporator, thereby greatly improving the refrigeration efficiency of the evaporator and achieving the purpose of energy conservation and consumption reduction. Description of the Drawings

[0020] The present invention will be further described below with reference to the accompanying drawings.

[0021] Figure 1 It is a schematic structural view of the refrigerating air return duct inside the foam layer in the embodiment of the present invention;

[0022] Figure 2 It is a schematic structural view of the refrigerating air return opening and the freezing air return opening in the embodiment of the present invention;

[0023] Figure 3It is a schematic structural diagram of the deflector and the air guide plate in the evaporator chamber in the embodiment of the present invention;

[0024] Figure 4 It is a schematic structural diagram of different air ducts formed by the deflector, the evaporator chamber and the freezing air duct in the embodiment of the present invention;

[0025] Figure 5 It is a schematic structural diagram of the evaporator and the refrigerated return air duct in the embodiment of the present invention;

[0026] Figure 6 It is a schematic structural diagram of the support frame, the deflector and the air guide plate in the embodiment of the present invention.

[0027] The labels in the figure represent:

[0028] 1, refrigerating liner; 11, refrigerating return air inlet;

[0029] 2, freezing liner; 21, freezing return air inlet;

[0030] 3, refrigerating return air duct; 31, refrigerating return air joint; 32, return air chamber; 33, freezing return air joint;

[0031] 4, refrigerating air inlet;

[0032] 5, evaporator chamber;

[0033] 6, evaporator; 61, support frame; 611, deflector one; 612, deflector two; 62, air guide plate;

[0034] 7, freezing fan;

[0035] 8, air duct one;

[0036] 9, air duct two;

[0037] 10, air duct three;

[0038] 12, freezing air duct. Detailed implementation manners

[0039] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0040] Please refer to Figures 1 to 6As shown in the figure, an embodiment of the present invention is a side air return structure, which includes a refrigerating chamber and a freezing chamber. A refrigerating liner 1 is arranged in the refrigerating chamber, and a refrigerating air inlet 4 is arranged inside the refrigerating liner 1; a freezing liner 2 is arranged in the freezing chamber, and an evaporator chamber 5 is also arranged in the freezing chamber; wherein, the refrigerating chamber and the freezing chamber share a refrigeration cycle system.

[0041] The refrigerating liner 1 and the freezing liner 2 are connected through a supply air duct and a return air duct. Refrigerating air return openings 11 are respectively arranged on both sides of the refrigerating liner 1, and freezing air return openings 21 are respectively arranged on both sides of the bottom of the evaporator chamber 5; the refrigerating liner 1 and the freezing liner 2 are connected through a return air duct, and the return air duct is arranged in the foaming layer inside the evaporator chamber 5;

[0042] An evaporator 6 is arranged inside the evaporator chamber 5. A freezing fan 7 is arranged above the evaporator 6. Support frames 61 are respectively arranged at both ends of the evaporator 6. A wind guiding mechanism is arranged at the bottom of the support frame 61. The wind guiding mechanism includes a first deflector 611 and a second deflector 612. Among them, the first deflector 611 extends to the middle position of the evaporator 6, and a certain angle is formed between the second deflector 612 and the first deflector 611. And the second deflector 612 divides the space between the back of the evaporator chamber 5 and the freezing air duct arranged in the freezing chamber into an internal air duct and an external air duct. Among them, the internal air duct deflects the air to the middle position of the evaporator 6, and the external air duct deflects the air to one side of the evaporator 6.

[0043] Specifically, by arranging the return air duct on both sides of the evaporator chamber 5, the space inside the foam layer can be fully utilized; among them, the wind guiding mechanism at the bottom of the support frame 61, the wind deflector 62 and the evaporator 6 are used as working components, and no separate parts need to be added. The structure is simple, the installation process is simple, the cost is low, and the refrigeration effect is good.

[0044] Furthermore, the wind guiding mechanism is in an L shape.

[0045] Furthermore, a wind deflector 62 is arranged between the support frame 61 and the side wall of the evaporator chamber 5. The wind deflector 62 is located above the freezing air return opening 21 and has a certain inclination angle.

[0046] Furthermore, one end of the wind deflector 62 is closely attached to the support frame 61, and the other end is hermetically connected to the side wall of the evaporator chamber 5.

[0047] Specifically, the wind deflector 62 divides the space formed by the back of the evaporator chamber 5 and the freezing air duct into upper and lower parts. The lower part forms a duct structure. Please refer to Figure 3 and Figure 4, including an air duct 1, an air duct 2 and an air duct 3. A plurality of air duct spaces guide the air flowing back from the refrigerating chamber to the fin surfaces of the entire evaporator 6, thereby greatly improving the refrigeration efficiency of the evaporator 6 and achieving the purpose of energy conservation and consumption reduction.

[0048] Furthermore, the first deflector 611 is inclined 10-30° relative to the horizontal direction.

[0049] Specifically, after the evaporator 6 defrosts, the formed water can flow down smoothly through the first deflector 611, which is beneficial to the drainage of the water.

[0050] Furthermore, a refrigerating return air connector 31 is connected to the refrigerating return air opening 11, a freezing return air connector 33 is connected to the freezing return air opening 21, and a return air cavity 32 is connected between the refrigerating return air connector 31 and the freezing return air connector 33. The refrigerating return air connector 31, the return air cavity 32 and the freezing return air connector 33 together form a refrigerating return air duct 3.

[0051] Furthermore, the support frame 61 and the air deflector 62 are made of metal.

[0052] The embodiment of the present invention further includes a refrigerator, and a side return freezing air mechanism as described above is arranged inside the refrigerator.

[0053] In the embodiment of the present invention, after the above-mentioned side return freezing air mechanism is selected and installed in the refrigerator, the freezing back foam layer of the multi-door single-system air-cooled refrigerator is thinned from 80 mm to 55 mm, and the volume ratio can be increased by more than 2%, which can greatly increase the effective volume of the refrigerator.

[0054] In the description of the present invention, it should be understood that the terms "upper", "lower", "left", "right", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, as well as a specific orientation structure and operation. Therefore, it cannot be understood as a limitation to the present invention. In addition, "first" and "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0055] In the description of the present invention, it should be noted that unless otherwise clearly specified and defined, terms such as "installed", "connected", and "coupled" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0056] The above has described in detail an embodiment of the present invention, but the content described is only a preferred embodiment of the present invention and cannot be considered as limiting the scope of implementation of the present invention. Any equivalent changes and improvements made within the scope of the application of the present invention should still fall within the scope covered by the patent of the present invention.

Claims

1. A side air return structure, comprising a refrigerating chamber and a freezing chamber, wherein a refrigerating liner (1) is arranged in the refrigerating chamber, and a refrigerating air inlet (4) is arranged inside the refrigerating liner (1); characterized in that, The freezer compartment is provided with a freezing liner (2), and an evaporator chamber (5) is also provided at the rear of the freezer compartment; the refrigerating liner (1) and the freezing liner (2) are connected through a supply air duct and a return air duct. Refrigerating return air openings (11) are respectively arranged on both sides of the refrigerating liner (1), and freezing return air openings (21) are respectively arranged on both sides at the bottom of the evaporator chamber (5); The refrigerating liner (1) and the freezing liner (2) are connected through a return air duct; an evaporator (6) is arranged inside the evaporator chamber (5). A freezing fan (7) is arranged above the evaporator (6). Support frames (61) are respectively arranged at the left and right ends of the evaporator (6). A wind guiding mechanism is arranged at the bottom of the support frame (61). The wind guiding mechanism includes a first guide plate (611) and a second guide plate (612). A plurality of air ducts are formed between the first guide plate (611), the second guide plate (612), the rear wall of the evaporator chamber (5) and the freezing air duct; A guide vane (62) is arranged between the support frame (61) and the side wall of the evaporator chamber (5). The guide vane (62) is located above the freezing return air opening (21) and has an inclined angle to divide the space formed by the rear wall of the evaporator chamber (5) and the freezing air duct into upper and lower parts. The lower part forms an air duct structure, and the air duct structure includes an air duct one (8), an air duct two (9) and an air duct three (10); One end of the guide vane (62) is closely attached to the support frame (61), and the other end is hermetically connected to the side wall of the evaporator chamber (5).

2. The side air return structure according to claim 1, characterized in that The wind guiding mechanism is in an L shape.

3. The side air return structure according to claim 1, characterized in that, The first guide plate (611) is inclined 10 to 30° relative to the horizontal direction.

4. The side air return structure according to claim 1, characterized in that, A refrigerating return air joint (31) is connected to the refrigerating return air opening (11), a freezing return air joint (33) is connected to the freezing return air opening (21), and a return air cavity (32) is connected between the refrigerating return air joint (31) and the freezing return air joint (33).

5. The side air return structure according to claim 4, wherein, The support frame (61) and the guide vane (62) are made of metal material.

6. A refrigerator, characterized in that, The refrigerator is internally provided with a side return air structure as described in any one of claims 1 to 5.

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