Refrigerator with air multiplier duct

Abstract

The present invention discloses a refrigerator with an air multiplier duct, and relates to the technical field of refrigerators. The present invention comprises a refrigerator body; a plurality of refrigeration compartments are arranged in the refrigerator body; the refrigeration compartments are all provided with door bodies, and an annular multiplier duct is installed on one side of the foaming layer at the back of the refrigeration compartment; a fan and a refrigeration evaporator are installed in the wind hood connected to the bottom of the annular multiplier duct in sequence from top to bottom. The present invention blows high-pressure cold air into the left and right air inlets of the annular multiplier duct through a fan, and the high-pressure cold air in the annular multiplier duct is ejected through the annular ejection vent to form a high-speed airflow, which drives the air inlet gap to form a wind flow and then forms a planar wind flow, so as to realize uniform large-area air supply.

Description

Technical Field

[0001] The invention belongs to the technical field of refrigerators, and in particular relates to a refrigerator with an air multiplier duct. Background Art

[0002] At present, air-cooled refrigerators have become the mainstream refrigerator products due to their large volume ratio, automatic defrosting, automatic discharge of defrosting water, and good appearance. The air duct design of air-cooled refrigerators generally adopts centrifugal fans or axial flow fans. The air duct adopts a combination of foam and ABS. The shape is generally a branch structure, and each air duct branch corresponds to an air outlet. In this air duct structure, the air volume of each air outlet cannot be kept consistent, and it is easy to have the phenomenon of excessive wind speed in some places and too small air volume in other places. In addition, the volume occupied by the foam and ABS cover is large, which wastes part of the refrigerator volume; and it is easy to have uneven temperature distribution, excessively high local temperature, and excessively low local temperature.

[0003] The present invention provides a refrigerator with an air multiplier duct, in which high-pressure cold air is blown into the left and right air inlets of the annular multiplier duct by a fan, and the high-pressure cold air in the annular multiplier duct is ejected through the annular ejection port to form a high-speed airflow, which drives the air inlet gap to form a wind flow and then forms a planar wind flow, thereby realizing uniform large-area air supply. Summary of the invention

[0004] The purpose of the present invention is to provide a refrigerator with an air multiplier duct, in which high-pressure cold air is blown into the left and right air inlets of the annular multiplier duct by a fan. The high-pressure cold air in the annular multiplier duct is ejected through the annular ejection port to form a high-speed airflow, which drives the air inlet gap to form wind flow and then forms a planar wind flow, thereby realizing uniform large-area air supply.

[0005] In order to solve the above technical problems, the present invention is achieved through the following technical solutions:

[0006] The present invention is a refrigerator with an air multiplier duct, comprising: a refrigerator body; a plurality of refrigeration compartments are arranged in the refrigerator body; the refrigeration compartments are all provided with doors, and an annular multiplier duct is installed on one side of a foaming layer at the back of the refrigeration compartment; a fan and a refrigeration evaporator are installed in sequence from top to bottom in a wind hood connected to the bottom of the annular multiplier duct;

[0007] The connection position between the annular multiplier air duct and the wind cover is provided with left and right air inlets corresponding to the fan; the wind cover below the refrigeration evaporator is provided with an air suction port; a compressor is installed in the compressor compartment at the bottom of the refrigerator body; a temperature sensor is installed on the side wall of the refrigeration compartment;

[0008] The rear wall of the annular multiplier air duct is connected to the foam layer at the back of the refrigeration compartment by a plurality of connecting blocks to form an air inlet gap; the rear wall and the inner wall of the annular multiplier air duct are provided with an annular injection air outlet; the cross section of the annular multiplier air duct is trapezoidal in shape as a whole and the narrow end of the annular multiplier air duct is far away from the foam layer at the back of the refrigeration compartment; the wind flow direction at the injection point of the annular injection air outlet is parallel to the axial direction of the annular multiplier air duct.

[0009] Preferably, the two sides constituting the annular jet outlet are respectively the rear wall and the inner wall of the annular multiplier air duct; one side edge of the inner wall is bent toward the inside of the annular multiplier air duct to form a first arc-shaped bent edge; one side edge of the rear wall is bent parallel to the axial direction of the annular multiplier air duct to form a second arc-shaped bent edge; the first arc-shaped bent edge is located inside the second arc-shaped bent edge.

[0010] Preferably, the width of the annular jet air port is 3-5 mm; the width of the air inlet gap is 1-2 cm.

[0011] One aspect of the present invention has the following beneficial effects:

[0012] The present invention blows high-pressure cold air into the left and right air inlets of the annular multiplier air duct through a fan. The high-pressure cold air in the annular multiplier air duct is ejected through the annular ejection air outlet to form a high-speed airflow, which drives the air inlet gap to form a wind flow and then a planar wind flow, thereby achieving uniform large-area air supply.

[0013] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0015] Figure 1 It is a structural schematic diagram of a refrigerator with an air multiplier duct according to the present invention;

[0016] Figure 2 for Figure 1 Cross-section of the middle AA;

[0017] Figure 3 for Figure 2 A magnified view of middle;

[0018] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0019] 1-refrigerator body, 2-refrigeration compartment, 3-annular multiplier air duct, 31-air inlet, 32-inner wall, 321-first arc-shaped bent edge, 33-rear wall, 34-annular injection air outlet, 331-second arc-shaped bent edge, 4-fan, 5-air inlet, 6-refrigeration evaporator, 7-compressor, 8-temperature sensor. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] In the description of the present invention, it should be understood that the terms "opening", "upper", "middle", "length", "inside" and the like indicating orientation or positional relationship are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0022] See also Figure 1-3 As shown, the present invention is a refrigerator with an air multiplier duct, comprising: a refrigerator body 1; a plurality of refrigeration compartments 2 are arranged in the refrigerator body 1; each refrigeration compartment 2 is provided with a door body 21, and an annular multiplier duct 3 is installed on one side of the back foaming layer of the refrigeration compartment 2; a fan 4 and a refrigeration evaporator 6 are installed in sequence from top to bottom in the wind hood connected to the bottom of the annular multiplier duct 3;

[0023] The annular multiplier air duct 3 is connected to the wind cover and is provided with two left and right air inlets 31 corresponding to the fan 4; the wind cover below the refrigeration evaporator 6 is provided with an air inlet 5; a compressor 7 is installed in the compressor compartment at the bottom of the refrigerator body 1; a temperature sensor 8 is installed on the side wall of the refrigeration compartment 2;

[0024] The rear wall 33 of the annular multiplier air duct 3 is connected to the back foaming layer of the refrigeration compartment 2 by a plurality of connecting blocks to form an air inlet gap B; wherein, the width of the annular jet air port 34 is 3-5 mm; the width of the air inlet gap B is 1-2 cm; the rear wall 33 and the inner wall 32 of the annular multiplier air duct 3 are provided with annular jet air ports 34; the cross section of the annular multiplier air duct 3 is a trapezoidal shape as a whole and the narrow end of the annular multiplier air duct 3 is far away from the back foaming layer of the refrigeration compartment 2; the wind flow direction at the injection point of the annular jet air port 34 is parallel to the axial direction of the annular multiplier air duct 3.

[0025] Among them, the two sides constituting the annular injection air outlet 34 are respectively the rear wall 33 and the inner wall 32 of the annular multiplier air duct 3; one side of the inner wall 32 is bent toward the inside of the annular multiplier air duct 3 to form a first arc-shaped bent edge 321; one side of the rear wall 33 is bent parallel to the axial direction of the annular multiplier air duct 3 to form a second arc-shaped bent edge 331; the first arc-shaped bent edge 321 is located inside the second arc-shaped bent edge 331.

[0026] In actual use of the present invention: when the temperature sensor 8 in the refrigeration compartment 2 detects that the temperature is higher than the preset temperature threshold, the refrigerator main controller controls to turn on the compressor 7, and the compressor 7 delivers the refrigerant to the refrigeration evaporator 6; while the refrigerant evaporates at a low temperature in the refrigeration evaporator 6 and delivers the cold, the main controller controls to turn on the fan 4, where the fan 4 is a high-pressure fan, which can compress the high-pressure cold air flow into the annular multiplier air duct 3; the blades of the fan 4 suck the high-temperature air in the refrigeration compartment 2 into the wind hood through the air inlet 5 and refrigerate it through the cold evaporator 6; the system The cooled cold air is pressurized by the blades around the fan 4 and transported to the upper air inlet 31 in a circular trajectory; the air inlet 31 is closely matched with the closed-loop annular multiplier air duct 3, and the cold air after cooling and pressurization enters the annular multiplier air duct 3 through the left and right air inlets 31; the shape of the annular multiplier air duct 3 has a guiding and multiplying function, which rebounds the incoming cold air to the annular injection air port 34, and the cold air is ejected in a circular shape at high speed. Due to the Bernoulli effect, the high-speed annular airflow ejected from the annular injection air port 34 drives the wind flowing into the air inlet gap B in a surface shape, ensuring that the incoming air presents a uniform surface shape.

[0027] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0028] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A refrigerator with an air multiplier duct, comprising: A refrigerator body (1); a plurality of refrigeration compartments (2) are arranged in the refrigerator body (1); each of the refrigeration compartments (2) is provided with a door body (21), characterized in that an annular multiplier air duct (3) is installed on one side of the foam layer at the back of the refrigeration compartment (2); a fan (4) and a refrigeration evaporator (6) are installed in order from top to bottom in a wind hood connected to the bottom of the annular multiplier air duct (3); Two left and right air inlets (31) corresponding to the fan (4) are provided at the connection position between the annular multiplier air duct (3) and the wind hood; an air suction port (5) is provided on the wind hood below the refrigeration evaporator (6); a compressor (7) is installed in the compressor compartment at the bottom of the refrigerator body (1); and a temperature sensor (8) is installed on the side wall of the refrigeration compartment (2); The rear wall (33) of the annular multiplier air duct (3) and the back foam layer of the refrigeration compartment (2) are connected via a plurality of connecting blocks to form an air inlet gap (B); the rear wall (33) and the inner wall (32) of the annular multiplier air duct (3) are provided with an annular injection air outlet (34); the cross section of the annular multiplier air duct (3) is overall in a trapezoidal shape and the narrow end of the annular multiplier air duct (3) is away from the back foam layer of the refrigeration compartment (2); the wind flow direction at the injection point of the annular injection air outlet (34) is parallel to the axial direction of the annular multiplier air duct (3); The two sides constituting the annular injection air outlet (34) are respectively the rear wall (33) and the inner wall (32) of the annular multiplier air duct (3); one side of the inner wall (32) is bent toward the inside of the annular multiplier air duct (3) to form a first arc-shaped curved edge (321); one side of the rear wall (33) is bent parallel to the axial direction of the annular multiplier air duct (3) to form a second arc-shaped curved edge (331); the first arc-shaped curved edge (321) is located inside the second arc-shaped curved edge (331).

2. A refrigerator with an air multiplier duct according to claim 1, characterized in that: The width of the annular jet air port (34) is 3-5 mm; the width of the air inlet gap (B) is 1-2 cm.

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