CN217929333U

CN217929333U - Refrigerator

Info

Publication number: CN217929333U
Application number: CN202221399467.4U
Authority: CN
Inventors: 苗增香; 关焕豪; 孙庆一鸣; 李子君; 么宇; 李福良
Original assignee: Gree Electric Appliances Inc of Zhuhai
Current assignee: Gree Electric Appliances Inc of Zhuhai
Priority date: 2022-06-07
Filing date: 2022-06-07
Publication date: 2022-11-29
Anticipated expiration: 2032-06-07
Also published as: WO2023236683A1

Abstract

The utility model relates to a refrigerator, which comprises a refrigerator body; and a cover plate disposed in the cabinet body and adjacent to a top wall of the cabinet body, the cover plate including: a first plate provided with a plurality of air supply ports; and a second plate connected to the first plate and located on a different plane from the first plate, wherein the second plate is provided with a plurality of air return ports, and the ratio of the total opening area of the plurality of air supply ports to the total opening area of the plurality of air return ports is in the range of 1. The utility model discloses can do benefit to the even and stable of air supply wind field, reduce the energy consumption.

Description

Refrigerator

Technical Field

The utility model relates to a refrigeration plant field especially relates to a freezer.

Background

Closed display cases, particularly vertical display cases with glass doors, are widely used in supermarkets and convenience stores for selling beverages, yogurt, milk, ready-to-eat snacks, and the like. The existing closed display cabinet mainly adopts a top axial flow fan to supply air, the air speed of the axial flow fan is high, noise is high, hot air is involved much, the axial flow fan is exposed outside, the size is large, and the appearance and the effective volume of the display cabinet are influenced. The cross flow fan has compact size and simple structure, so that the display cabinet is more attractive and has larger effective volume. But the showcase has the problems of unstable air supply and large energy consumption.

Disclosure of Invention

Some embodiments of the utility model provide a freezer for alleviate the unstable problem of air supply.

In one aspect of the present invention, there is provided a refrigerator, comprising,

a cabinet body; and

the cover plate is located in the cabinet body, and be close to the roof of the cabinet body, the cover plate includes:

a first plate provided with a plurality of air supply ports; and

a second plate connected to the first plate and located at a different plane from the first plate,

and a plurality of air return openings are arranged on the second plate, and the ratio of the total opening area of the plurality of air supply openings to the total opening area of the plurality of air return openings ranges from 1.

In some embodiments, the air return opening includes a first strip-shaped through hole, a length extending direction of the first strip-shaped through hole is consistent with an extending direction of a first side edge of the second plate, and the first side edge of the second plate is a side edge connected with the first plate.

In some embodiments, the air return opening further includes an air deflector, the air deflector is connected to a side edge of the first strip-shaped through hole, which is far away from the first plate, and the air deflector extends towards the lower side of the cover plate or extends towards the upper side of the cover plate.

In some embodiments, the air deflector extends below the shroud plate and to a side proximate the first plate.

In some embodiments, the cabinet further comprises a plurality of shelves, and the shelves are arranged in the cabinet body at intervals up and down; the cabinet body comprises a cabinet door; an included angle between the air deflector and the first line section OB is smaller than an included angle between the second line section OC and the first line section OB; wherein the content of the first and second substances,

the first line segment OB: selecting a first point O at the joint of the air deflector closest to the air return inlet of the first plate and the first strip-shaped through hole, wherein the first point O is taken as a vertical line to be the first line section OB;

the second line segment OC: the first line section OB with the point of intersect of the first goods shelves that are located the uppermost layer in a plurality of goods shelves is second point B, first point O with the shortest line of the most distant from of first goods shelves the side of cabinet door is third line section OA, A does point on the first goods shelves is third point A, third point A with the point in the middle of second point B is fourth point C, first point O with the line of fourth point C is second line section OC.

In some embodiments, the cooler further comprises a cross-flow fan disposed between the cover panel and the top wall of the cabinet; the cabinet body comprises a cabinet door, and the cross-flow fan is arranged on one side opposite to the cabinet door; the first plate is far away from the cabinet door relative to the second plate; the first plate covers the cross-flow fan, the air supply ports are arranged at intervals along the axial direction of the cross-flow fan, one side area, far away from the second plate, of the first plate is an area where the air supply ports are arranged and is a first area, the area of the first area is e x f, wherein e is the length dimension e of the first area, the length dimension e is equal to or larger than the axial dimension of the cross-flow fan, and f is the width dimension f of the first area.

In some embodiments, the width dimension f is taken as: on a radial cross section of the cross flow fan, a fourth line segment DE, a fifth line segment DF and a sixth line segment DG are respectively made with a central point D of the radial cross section of the cross flow fan as a starting point, wherein the fourth line segment DE is perpendicular to an axis of the cross flow fan, the fourth line segment DE is perpendicular to the fifth line segment DF, the fourth line segment DE is perpendicular to the sixth line segment DG, and an included angle between the fifth line segment DF and the sixth line segment DG is 120 degrees, the fifth line segment DF extends in a direction away from the second plate, a tangent FH is made at an intersection point F of the fifth line segment DF and an edge of the radial cross section of the cross flow fan, and a distance from the intersection point H of the tangent FH and the first plate to a side of the first plate away from the second plate is equal to the width dimension F.

In some embodiments, (S1 × n 1)/(e × f) 100% ≧ 55%, where n1 is the number of the plurality of blow ports and S1 is the open area of a single blow port.

In some embodiments, (S2 × n 2)/(g × h) 100% ≧ 45%, where n2 is the number of the plurality of air returns, S2 is an opening area of a single air return, h is a length dimension of the second plate, a length direction of the second plate coincides with an axial direction of the cross-flow fan, and g is a width dimension of the second plate, and a first side edge of the second plate connected to the first plate extends along the length direction of the second plate.

In some embodiments, the cooler further comprises a cross-flow fan disposed between the cover panel and the top wall of the cabinet; the cabinet body comprises a cabinet door, and the cross-flow fan is arranged on one side opposite to the cabinet door; the air supply outlet comprises a second strip-shaped through hole, and the length extending direction of the second strip-shaped through hole is perpendicular to the axial direction of the cross flow fan.

In some embodiments, the first panel is horizontally disposed, the first side edge of the second panel is connected to the first panel, and the second side edge of the second panel opposite the first side edge is connected to the top wall at an upward incline.

In some embodiments, the freezer further comprises an evaporator positioned above the first panel, the second panel and the top wall forming a mixing chamber therebetween, and the cross flow fan is configured to provide power to cause airflow within the cabinet to flow through the air return opening to the mixing chamber, from the mixing chamber through the evaporator and the cross flow fan, and from the plurality of supply openings into the cabinet.

Based on the technical scheme, the utility model discloses following beneficial effect has at least:

in some embodiments, the freezer includes the cover plate, and the cover plate includes first board and second board, is equipped with a plurality of supply-air outlets on the first board, and the second board is connected in the first board, and lies in different planes with the first board, is equipped with a plurality of return air inlets on the second board, and the ratio range of the total open area of a plurality of supply-air outlets and the total open area of a plurality of return air inlets is 1 ~ 3 ~ 1.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without undue limitation to the invention. In the drawings:

fig. 1 is a schematic structural view of a freezer provided in accordance with some embodiments of the present invention;

fig. 2 is a schematic view of a portion of a freezer according to some embodiments of the present invention;

fig. 3 is a schematic front view of a cover plate provided according to some embodiments of the present invention;

fig. 4 is a schematic top view of a cover plate provided in accordance with some embodiments of the present invention;

fig. 5 is a schematic perspective view of a cover plate according to some embodiments of the present invention.

The reference numbers in the figures indicate:

1-a first plate; 2-a second plate; 21-a first side; 22-a second side; 3-an air supply outlet; 31-a second strip-shaped through hole; 4-air return inlet; 41-a first bar via; 42-a wind deflector;

100-a cover plate; 200-a cabinet body; 201-a first side wall; 202-top wall; 300-a cabinet door; 400-crossflow blower; 500-a shelf; 501-a first shelf; 600-an evaporator; 700-air mixing chamber.

It should be understood that the dimensions of the various parts shown in the drawings are not drawn to scale. Further, the same or similar reference numerals denote the same or similar components.

Detailed Description

Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. The description of the exemplary embodiments is merely illustrative and is in no way intended to limit the invention, its application, or uses. The present invention may be embodied in many different forms and is not limited to the embodiments described herein. These embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. It should be noted that: the relative arrangement of parts and steps, the composition of materials, numerical expressions and numerical values set forth in these embodiments are to be construed as merely illustrative, and not restrictive, unless specifically stated otherwise.

The use of "first," "second," and the like in the present application does not denote any order, quantity, or importance, but rather the terms "first," "second," and the like are used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that the element preceding the word comprises the element listed after the word, and does not exclude the possibility that other elements may also be included. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.

In the present invention, when it is described that a specific device is located between a first device and a second device, an intervening device may or may not be present between the specific device and the first device or the second device. When a particular device is described as being coupled to other devices, that particular device may be directly coupled to the other devices without intervening devices or may be directly coupled to the other devices with intervening devices.

All terms (including 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 belongs unless specifically defined otherwise. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.

Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail, but are intended to be part of the specification where appropriate.

Figure 1 is a schematic structural view of some embodiments of a cooler according to the present invention. Referring to fig. 1, in some embodiments, as shown in fig. 1, a cooler includes a cabinet 200, a crossflow blower 400, and a lid panel 100.

The cabinet 200 includes a top wall 202, a first side wall 201, and a cabinet door 300, wherein the first side wall 201 is disposed opposite to the cabinet door 300. The cabinet door 300 is openably and closably mounted to the cabinet 200.

In some embodiments, the cabinet 200 further includes a bottom wall opposite the top wall 202, and a direction between the top wall 202 and the bottom wall of the cabinet 200 is a height direction of the cabinet 200. The direction between the first sidewall 201 of the cabinet 200 and the cabinet door 300 is the depth direction of the cabinet 200.

In some embodiments, the cabinet 200 further includes a second side wall and a third side wall, which are oppositely disposed, and are connected to the cabinet door 300 and the first side wall 201, the second side wall, the third side wall, the top wall 202 and the bottom wall enclose a cavity with an opening, the cabinet door 300 is used for closing the cavity, and the cabinet door 300 is opened to take articles from the cavity or send articles to the cavity. The direction between the second side wall and the third side wall is the length direction of the cabinet 200.

The hood panel 100 is disposed within the cabinet 200 and adjacent to a top wall 202 of the cabinet 200.

The cross flow fan 400 is disposed in the cabinet 200 between the hood panel 100 and the top wall 202 of the cabinet 200. The cross flow fan 400 is provided at a side opposite to the cabinet door 300, that is, adjacent to the first sidewall 201. The axial direction of the cross flow fan 400 is in the same direction as the second to third sidewalls of the cabinet 200.

The shroud plate 100 includes a first plate 1 and a second plate 2. The first plate 1 is provided with a plurality of air supply ports 3. The second plate 2 is connected to the first plate 1, and is located on a different plane from the first plate 1, a plurality of air return openings 4 are provided on the second plate 2, and the ratio range of the total opening area of the plurality of air supply openings 3 to the total opening area of the plurality of air return openings 4 is 1. Preferably, the ratio of the total opening area of the plurality of blowing ports 3 to the total opening area of the plurality of return air ports 4 ranges from 1.

If the total area of return air inlet 4 is too little, then the steam that brings after cabinet door 200 is opened can't fully get into the evaporimeter cooling, can make the temperature before the cabinet door 200 high, if the total area of return air inlet 4 is too big, then because the great meeting of opening makes external steam be drawn into more in the cabinet when cabinet door 200 is opened, increases the load of evaporimeter, consequently, the total open area of a plurality of supply-air outlets 3 and the total open area's of a plurality of return air inlets 4 proportional range is 1.

In this embodiment, supply-air outlet 3, return air inlet 4 establish as an organic whole with cover plate 100, can solve the needs of freezer during operation air supply and return air, can compromise the outward appearance of freezer again, make the freezer more pleasing to the eye, and enable the cabinet internal volume and obtain effective utilization.

In some embodiments, the first and

second panels

1, 2 may be formed by bending a single, integral panel. Alternatively, the first plate 1 and the second plate 2 are two independent plates, and the first plate 1 and the second plate 2 are spliced to form the cover plate 100.

In some embodiments, the cover plate 100 can be made of sheet metal parts, flexible production can be performed according to the size of the refrigerator in the production process, compatibility is good, a mold does not need to be developed again, the development cost of the mold is reduced, and the problem that the mold changing cost is high for multiple times for different types of cover plates 100 in the production process is solved.

To bigger freezer, in order to facilitate production and maintenance, the cover plate 100 can be formed by splicing a plurality of metal plates, and the plurality of metal plates can be fixedly connected by screws. The shroud 100 may also be formed from a single integral sheet metal bend, the shape of the bend (including width and angle) being determined by the evaporator and fan components.

In this embodiment, the cross-flow fan 400 is adopted, so that the noise is low, the air supply amount is ensured, meanwhile, the hot air is reduced, and the problems that the noise is high and the hot air is more involved in the running process of the axial-flow fan are solved.

Referring to fig. 3 and 4, in some embodiments, the air return opening 4 includes a first through bar-shaped hole 41, a length of the first through bar-shaped hole 41 extends in a direction consistent with an extension direction of the first side 21 of the second plate 2, and the first side 21 of the second plate 2 is a side connected to the first plate 1. The return air flow rate can be increased by providing the return air opening 4 as the first strip through hole 41.

In some embodiments, a plurality of air return openings 4 are formed in the second plate 2 along the extending direction of the first side 21, and a plurality of air return openings are also formed in the direction perpendicular to the first side 21.

In some embodiments, the second plate 2 is provided with a plurality of rows and columns of air return openings 4.

In some embodiments, the air return opening 4 further includes a wind deflector 42, the wind deflector 42 is connected to a side of the first strip-shaped through hole 41 away from the first plate 1, and the wind deflector 42 extends below the shroud plate 100 (refer to fig. 3) or extends above the shroud plate 100 (not shown). The air deflectors 42 are used to direct the flow of return air.

In some embodiments, the air deflector 42 extends below the shroud 100 and to a side adjacent the first plate 1.

Referring to fig. 1 and 2, the freezer further includes a plurality of shelves 500, the shelves 500 are disposed in the cabinet 200 at intervals up and down, the air deflector 42 extends to a side close to the first plate 1 below the cover plate 100, that is, an opening of the air return opening 4 faces the shelves 500 and a side opposite to the cabinet door 300, air can be guided by the air deflector 42, hot air suction when the cabinet door 300 is opened is avoided, suction amount of hot air is reduced, influence of hot air on return air temperature is reduced, return air temperature can be kept at a lower temperature, operation of the refrigeration system is facilitated, the problem that performance of the refrigeration system is affected by hot air brought in by the air return opening 4 when the cabinet door 300 is opened is solved, the air deflector 42 inclines to the side opposite to the cabinet door 300, and components (such as a cross flow fan, an evaporator, a water pan and the like) disposed between the cover plate 100 and the top wall 202 of the cabinet 200 can be shielded, so that the interior of the freezer is more beautiful.

In some embodiments, the air return opening 4 is a louver-shaped air supply fence, which can hide components such as an evaporator, a water pan and the like, so that the refrigerator is more attractive.

In some embodiments, the freezer further includes a plurality of shelves 500, the shelves 500 being spaced vertically within the cabinet 200; the cabinet 200 includes a cabinet door 300.

Referring to fig. 2 and 3, an included angle between the air deflector 42 and the first line OB is smaller than an included angle ([ chip ] b) between the second line OC and the first line OB.

First line segment OB: a first point O is selected at the connecting position of the air deflector 42 closest to the air return opening 4 of the first plate 1 and the first strip-shaped through hole 41, and the first point O is taken as a first line OB.

Second line segment OC: an intersection point of the first line OB and the first shelf 501 located at the uppermost layer among the plurality of shelves 500 is a second point B, a shortest connection line between the first point O and a side edge of the first shelf 501 farthest from the cabinet door 300 is a third line OA, a is a point on the first shelf 501 is a third point a, a point between the third point a and the second point B is a fourth point C, and a connection line between the first point O and the fourth point C is a second line OC.

The contained angle between aviation baffle 42 and the first line section OB is less than the contained angle COB between second line section OC and the first line section OB, can avoid rolling into too much hot-blastly in evaporimeter 600 and the cross-flow fan 400, can guarantee to inhale sufficient return air simultaneously, can also compromise the outward appearance pleasing to the eye when being drawn into hot-blastly less.

In some embodiments, the cooler further includes a cross-flow fan 400, the cross-flow fan 400 being disposed between the shroud 100 and the top wall 202 of the cabinet 200; the cabinet 200 includes a cabinet door 300, and a cross-flow fan 400 is provided at a side opposite to the cabinet door 300. The first plate 1 is far away from the cabinet door 300 relative to the second plate 2; the first plate 1 covers the cross flow fan 400, and a plurality of air supply ports 3 are provided at intervals in the axial direction of the cross flow fan 400.

Referring to fig. 4, a region of the first plate 1 on a side away from the second plate 2 is a region where the plurality of air supply ports 3 are provided, and is a first region having an area e × f, where e is a length dimension e of the first region, the length dimension e is equal to or greater than an axial dimension of the crossflow blower 400, and f is a width dimension f of the first region.

The air supply outlet 3 is close to the first side wall 201 of the cabinet 200 and is located below the cross flow fan 400. The length dimension e is equal to or greater than the axial dimension of the cross flow fan 400, so that the outlet air of the cross flow fan 400 can be sent into the cabinet body 200 through the air supply outlet 3 in time.

Optionally, the length dimension e is slightly larger than the axial dimension of crossflow blower 400.

Referring to fig. 2, in some embodiments, on a radial cross section of the crossflow blower 400, a fourth line segment DE, a fifth line segment DF and a sixth line segment DG are respectively drawn starting from a center point D of the radial cross section of the crossflow blower 400, wherein the fourth line segment DE is perpendicular to an axis of the crossflow blower 400, the fourth line segment DE is perpendicular to the fifth line segment DF, the fourth line segment DE is 120 degrees to the sixth line segment DG, and an included angle between the fifth line segment DF and the sixth line segment DG is 120 degrees, the fifth line segment DF extends in a direction away from the second plate 2, a tangent FH is drawn at an intersection point F of the fifth line segment DF with an edge of the radial cross section of the crossflow blower 400, and a distance from an intersection point H of the tangent FH with the first plate 1 to a side of the first plate 1 away from the second plate 2 is equal to the width dimension F.

The length dimension e is equal to or larger than the axial dimension of the cross-flow fan 400, and the width dimension f is equal to the distance from the intersection point H of the tangent FH and the first plate 1 to the side edge of the first plate 1 far away from the second plate 2, so that the air outlet of the cross-flow fan 400 can be timely sent into the cabinet body 200 through the air supply opening 3.

Alternatively, the length dimension e is equal to the maximum distance between the two furthest away blowing openings 3 and the width dimension f is equal to the maximum distance between the blowing openings 3 and the side of the first plate 1 remote from the second plate 2.

Referring to fig. 4, in some embodiments, (S1 × n 1)/(e × f) 100% ≧ 55%, where n1 is the number of multiple supply air ports 3 and S1 is the open area of a single supply air port 3.

Referring to fig. 4, in some embodiments, (S2 × n 2)/(g × h) > 100% ≧ 45%, where n2 is the number of the plurality of return air openings 4, S2 is the opening area of a single return air opening 4, h is the length dimension of the second plate 2, the length direction of the second plate 2 coincides with the axial direction of the cross flow fan 400, g is the width dimension of the second plate 2, and the first side 21 of the second plate 2 connected to the first plate 1 extends in the length direction of the second plate 2.

The specific values of the parameters e, f, g and h can be determined according to the sizes of the fan and the refrigerator.

In some embodiments, the cooler further includes a cross-flow fan 400, the cross-flow fan 400 being disposed between the shroud 100 and the top wall 202 of the cabinet 200; the cabinet body 200 comprises a cabinet door 300, and the cross flow fan 400 is arranged on one side opposite to the cabinet door 300; the air supply opening 3 includes a second through hole 31 having a bar shape, and the length extending direction of the second through hole 31 is perpendicular to the axial direction of the cross flow fan 400.

The air supply outlet 3 is designed into the second strip-shaped through hole 31 with moderate size, the plane where the second strip-shaped through hole 31 is located is perpendicular to the plane where the air flow direction is located, namely, the plane where the opening of the air supply outlet 3 is located vertically cuts an air field, so that air can be supplied more uniformly in the cabinet, and the problems that the air supply outlet is too long, the air field is easy to disorder and the air supply is not uniform are solved.

Experiments prove that the proportion of the shape, the number, the length size and the area size of the opening of the air supply outlet 3 provided by the embodiment of the disclosure can ensure the uniformity and the stability of an air supply wind field.

Referring to fig. 1, 2 and 5, in some embodiments, the first panel 1 is disposed horizontally, a first side edge 21 of the second panel 2 is attached to the first panel 1, and a second side edge 22 of the second panel 2 opposite the first side edge 21 is attached obliquely upward to the top wall 202.

Referring to fig. 5, the cover plate 100 includes a first plate 1 and a second plate 2, that is, a horizontal plane and a slant plane, and the cover plate 100 covers the top wall 202 of the whole refrigerator 200, so as to solve the problem that the appearance is affected by the exposure of the cross-flow fan 400, the evaporator 600, the water pan, and other components. A drip tray is typically provided below the evaporator 600.

The proportion of the shape, the number, the length and the area of the openings of the air supply outlet and the air return inlet provided by the embodiment can enable the air supply and the air return in the cabinet to achieve the best effect.

In some embodiments, the freezer further includes an evaporator 600, the evaporator 600 is positioned above the first panel 1, the second panel 2 and the top wall 202 form an air mixing chamber 700 therebetween, and the cross flow fan 400 is configured to provide power to cause airflow within the cabinet 200 to flow through the return air opening 4 to the air mixing chamber 700, from the air mixing chamber 700, through the evaporator 600 and the cross flow fan 400, and from the plurality of supply air openings 3 to flow into the cabinet 200.

The second plate 2 and the top wall 202 form an air mixing chamber 700 therebetween, the air mixing chamber 700 can uniformly mix the return air, and the mixed return air is sucked into the evaporator 600.

In some embodiments, the material of the cover plate 100 is sheet metal, and the cover plate 100 needs to be painted with a matching color in order to match the color inside the cabinet.

For a larger refrigerator, in order to facilitate production and maintenance, the cover plate 100 can be formed by splicing a plurality of metal plates, and the plurality of metal plates can be fixedly connected through screws. The shroud 100 may also be formed from a single integral sheet metal bend, the shape of the bend (including width, angle) being determined by the evaporator and fan components.

In order to facilitate the connection and fixation of the cover plate 100 and other components in the refrigerator, the cover plate 100 may be bent and perforated as required, for example, in fig. 5, the rectangular groove at the bending position is designed to fit the refrigerator door beam, the circular hole at the return air fence is designed to connect the light wire, and some screw holes or rivet holes are provided.

As shown in fig. 5, the supply port 3 and the return port 4 are located on the same metal plate. The air supply outlet 3 is designed into a through hole shape, external objects (such as fingers) with effective resistance can be inserted into the air supply outlet 3 by the through hole shape, and meanwhile, the shape of the air supply outlet 3 is beneficial to uniformly sending cold air into the refrigerator. The return air inlet 4 is designed into a shutter shape, and components such as an evaporator and a water receiving disc can be hidden when the refrigerator is seen from the outside of the cabinet, so that the refrigerator is more attractive, hot air can be reduced to be involved, and a beneficial effect is generated on a refrigerating system.

The number of openings of the return air inlet 4 and the supply air inlet 3 is not determined, but the following rule is preferably followed:

the ratio of the total opening area of the plurality of air blowing ports 3 to the total opening area of the plurality of air return ports 4 is 1:5, i.e. (S1 × n 1): (S2 × n 2) =1:5; the relationship between the total opening area of the plurality of air blowing ports 3 and the area of the opening area is: (S1 × n 1)/(e × f) 100% 55% or more; the relationship between the total opening area of the plurality of air returns 4 and the area of the opening area is as follows: (S2 x n 2)/(g x h) 100% or more 45%.

Based on the above-described embodiments of the present invention, the technical features of one embodiment can be advantageously combined with one or more other embodiments without explicit negatives or conflicts.

Although some specific embodiments of the present invention have been described in detail by way of illustration, it should be understood by those skilled in the art that the above illustration is only for purposes of illustration and is not intended to limit the scope of the invention. It will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the scope and spirit of the present invention. The scope of the invention is defined by the appended claims.

Claims

1. A refrigerator, comprising:

a cabinet (200); and

a hood panel (100) disposed within the cabinet (200) and adjacent to a top wall (202) of the cabinet (200), the hood panel (100) comprising:

a first plate (1) provided with a plurality of air supply outlets (3); and

the second plate (2) is connected to the first plate (1) and located on a different plane from the first plate (1), a plurality of air return openings (4) are formed in the second plate (2), and the ratio of the total opening area of the air supply openings (3) to the total opening area of the air return openings (4) ranges from 1.

2. A refrigerator according to claim 1, characterized in that said return air opening (4) comprises a first through bar-shaped hole (41), the length extension direction of said first through bar-shaped hole (41) being identical to the extension direction of said first side edge (21) of said second plate (2), said first side edge (21) of said second plate (2) being the side edge connected to said first plate (1).

3. The refrigerator according to claim 2, wherein the air return opening (4) further comprises a wind deflector (42), the wind deflector (42) is connected with the side edge of the first strip-shaped through hole (41) far away from the first plate (1), and the wind deflector (42) extends towards the lower part of the cover plate (100) or towards the upper part of the cover plate (100).

4. A refrigerator according to claim 3, characterised in that the air deflector (42) extends towards the side close to the first plate (1) and below the lid panel (100).

5. The refrigerator of claim 4 further comprising a plurality of shelves (500), the shelves (500) being spaced above and below the cabinet (200); the cabinet body (200) comprises a cabinet door (300); an included angle between the air deflector (42) and the first line section OB is smaller than an included angle between the second line section OC and the first line section OB; wherein, the first and the second end of the pipe are connected with each other,

the first line segment OB: selecting a first point O at the joint of the air deflector (42) closest to the air return opening (4) of the first plate (1) and the first strip-shaped through hole (41), wherein a perpendicular line passing through the first point O is taken as a first line section OB;

the second line segment OC: the intersection point of the first line section OB and the first shelf (501) positioned at the uppermost layer in the plurality of shelves (500) is a second line section B, the shortest connecting line of the first point O and the side edge of the cabinet door (300) farthest away from the first shelf (501) is a third line section OA, A is the point on the first shelf (501) is a third point A, the point between the third point A and the second point B is a fourth point C, and the connecting line of the first point O and the fourth point C is a second line section OC.

6. A refrigerator according to claim 1, further comprising a cross-flow fan (400), said cross-flow fan (400) being disposed between said hood panel (100) and the top wall (202) of said cabinet (200); the cabinet body (200) comprises a cabinet door (300), and the cross-flow fan (400) is arranged on one side opposite to the cabinet door (300); the first panel (1) is distant from the cabinet door (300) with respect to the second panel (2); the first plate (1) covers the cross-flow fan (400), the air supply openings (3) are arranged at intervals along the axial direction of the cross-flow fan (400), one side area of the first plate (1) far away from the second plate (2) is an area where the air supply openings (3) are arranged, and is a first area, the area of the first area is e f, wherein e is the length dimension e of the first area, the length dimension e is equal to or larger than the axial dimension of the cross-flow fan (400), and f is the width dimension f of the first area.

7. The cooler of claim 6, wherein said width dimension f is selected from the group consisting of: on a radial cross section of the cross flow fan (400), a fourth line segment DE, a fifth line segment DF and a sixth line segment DG are respectively made by taking a central point D of the radial cross section of the cross flow fan (400) as a starting point, wherein the fourth line segment DE is perpendicular to the axis of the cross flow fan (400), the fourth line segment DE is perpendicular to the fifth line segment DF, the fourth line segment DE is 120 degrees to the sixth line segment DG, and the included angle between the fifth line segment DF and the sixth line segment DG is 120 degrees, the fifth line segment DF extends in the direction away from the second plate (2), a tangent FH is made at an intersection point F of the edge of the radial cross section of the cross flow fan (400) and the tangent H of the first plate (1) to the side of the first plate (1) away from the second plate (2) is equal to the width dimension F.

8. The refrigerator according to claim 6 or 7, wherein (S1 x n 1)/(e x f) 100%. Gtoreq.55%, where n1 is the number of said plurality of air blowing openings (3) and S1 is the opening area of a single air blowing opening (3).

9. A refrigerator according to any of claims 1 to 7, further comprising a cross-flow fan (400), said cross-flow fan (400) being disposed between said cover panel (100) and the top wall (202) of said cabinet (200); (S2 x n 2)/(g x j) 100% ≧ 45%, where n2 is the number of the plurality of air returns (4), S2 is the opening area of a single air return (4), h is the length dimension of the second plate (2), the length direction of the second plate (2) is consistent with the axial direction of the cross flow fan (400), g is the width dimension of the second plate (2), and a first side (21) of the second plate (2) connected with the first plate (1) extends along the length direction of the second plate (2).

10. A refrigerator according to any of claims 1 to 7, further comprising a cross-flow fan (400), said cross-flow fan (400) being disposed between said cover panel (100) and the top wall (202) of said cabinet (200); the cabinet body (200) comprises a cabinet door (300), and the cross-flow fan (400) is arranged on one side opposite to the cabinet door (300); the air supply outlet (3) comprises a second strip-shaped through hole (31), and the length extension direction of the second strip-shaped through hole (31) is perpendicular to the axial direction of the cross flow fan (400).

11. A refrigerator according to any one of claims 1 to 7, characterized in that said first panel (1) is arranged horizontally, a first side edge (21) of said second panel (2) being connected to said first panel (1), and a second side edge (22) of said second panel (2) opposite to said first side edge (21) being connected obliquely upwards to said top wall (202).

12. A refrigerator according to claim 11, further comprising an evaporator (600) and a cross-flow fan (400), said evaporator (600) being located above said first plate (1), said cross-flow fan (400) being located between said hood panel (100) and the top wall (202) of said cabinet (200); the second plate (2) and the top wall (202) form a mixing chamber (700), and the cross flow fan (400) is configured to provide power to enable the airflow in the cabinet body (200) to flow to the mixing chamber (700) through the air return opening (4), further flow from the mixing chamber (700) through the evaporator (600) and the cross flow fan (400), and finally flow to the cabinet body (200) from the plurality of air supply openings (3).