CN109140863B

CN109140863B - Horizontal air-cooled refrigerator

Info

Publication number: CN109140863B
Application number: CN201810743329.5A
Authority: CN
Inventors: 成俊亮; 丁剑波; 李大伟; 叶世超; 任伟涛; 于冬
Original assignee: Qingdao Haier Special Refrigerator Co Ltd
Current assignee: Qingdao Haier Special Refrigerator Co Ltd
Priority date: 2018-07-09
Filing date: 2018-07-09
Publication date: 2022-11-25
Anticipated expiration: 2038-07-09
Also published as: CN109140863A

Abstract

The invention discloses a horizontal air-cooled refrigerator which comprises a horizontal cabinet body and a door body, wherein the horizontal cabinet body comprises a first end part and a second end part which are arranged oppositely, and a first side wall and a second side wall which are connected with the first end part and the second end part and are arranged oppositely, a side wall air outlet channel is arranged on at least one of the first side wall and the second side wall, an air channel cover plate which surrounds and forms an evaporation cavity is arranged at the first end part, the air channel cover plate comprises an upper cover plate which is arranged at a cabinet opening of the horizontal cabinet body, when the door body is in a closed state, a circulation air channel is formed between the lower end surface of the door body and the upper cover plate, the side wall air outlet channel comprises a side wall main air outlet channel and a side wall branch air channel which are mutually communicated, the side wall branch air channel is positioned above the side wall main air outlet channel, the side wall branch air channel is communicated with the circulation air channel, and the opening direction of the side wall branch air outlet channel of the side wall branch air channel faces the circulation air channel. The invention greatly improves the air circulation in narrow space by means of forced air circulation, and solves the problem of frosting in narrow space or local low-temperature positions such as the cabinet opening, the top of the upper cover plate and the like.

Description

Horizontal air-cooled refrigerator

Technical Field

The invention relates to the technical field of refrigeration, in particular to a horizontal air-cooled refrigerator.

Background

With the progress of science and technology, people's standard of living is higher and higher, and in ordinary family, the refrigerator is indispensable, and when need reserve a large amount of frozen and refrigerated food in the festival in the coming year, the demand that people can not be satisfied by the refrigerator gradually, and domestic freezer area is little, the volume is big, becomes consumer's first choice of solving the refrigerator storage space shortage in recent years.

Horizontal freezer generally adopts directly cold refrigeration mode, and along with the extension of live time and the increase of switch door number of times, the freezer internal wall face can have the frost layer to appear gradually, can be more and more moreover, only can manual clearance, and this is one of the many years' of problem of puzzlement horizontal freezer.

At present, domestic horizontal freezer adopts the mode of forced air cooling for improving the internal problem of frosting of cabinet, and its principle is that the internal air flow of cabinet is mixxed to the fan, with the internal humid air circulation of cabinet and through the evaporimeter surface, and evaporimeter surface temperature is lower, and humid air cools down here and condenses, attaches to the evaporimeter surface, and then the mode of heating through the heater strip is defrosted and will defrosted the water discharge cabinet external, realizes the internal frostless purpose of cabinet.

However, in some areas where the space is narrow, the air circulation is not smooth, or the local temperature is low, if the humid air stays for a long time, the humid air is finally condensed into frost.

The common solution is to improve the narrow space, such as increasing the space volume for air to enter circularly, or designing the cabinet body with a certain inclination angle, and discharging the wet air when the wet air is condensed into water and is not iced or frosted, however, the improvement mode is passive, and after the space is enlarged, part of the air circulation is improved, but the effect is not obvious and is wasted, and the effect is weak for frosting caused by local low temperature.

In addition, common air cooling methods are limited by the space in the cabinet body and the design of the air duct, frost still exists at the top of the cabinet opening and the top of the air duct cover plate, particularly at the top of the air duct cover plate, in order to ensure that the cabinet body is internally provided with enough use space, the heat insulation layer of the air duct cover plate can be reduced as much as possible, the surface temperature of the air duct cover plate is lower, the frost easily occurs, the top of the air duct cover plate is used as a preferred area which is in contact with the external wet air, and is a frosted heavy disaster area, the frosting causes the cabinet body to be unattractive, the door is inconvenient to open and close, even the air outlet is blocked, and the refrigeration effect is influenced.

Disclosure of Invention

The invention aims to provide a horizontal air-cooled refrigerator which can solve the problem of frosting in narrow spaces or local low-temperature positions such as a cabinet opening, the top of an upper cover plate and the like.

In order to achieve one of the above objects, an embodiment of the present invention provides a horizontal air-cooled refrigerator, including a horizontal cabinet body and a door body, where the horizontal cabinet body includes a first end portion and a second end portion that are oppositely disposed, and a first side wall and a second side wall that are connected to the first end portion and the second end portion and are oppositely disposed, at least one of the first side wall and the second side wall is provided with a side wall air outlet duct, the first end portion is provided with an air duct cover plate that encloses an evaporation cavity, the air duct cover plate includes an upper cover plate that is disposed at a cabinet opening of the horizontal cabinet body, when the door body is in a closed state, a circulation air duct is formed between a lower end surface of the door body and the upper cover plate, the side wall air outlet duct includes a side wall main air outlet duct and a side wall branch air duct that are mutually communicated, the side wall branch air duct is located above the side wall main air outlet duct, and an opening direction of the side wall branch air outlet duct that is communicated with the circulation air duct and the side wall branch air outlet duct faces the circulation air duct.

As a further improvement of an embodiment of the present invention, an opening direction of the sidewall main air outlet duct faces a cavity direction of the horizontal cabinet.

As a further improvement of the embodiment of the present invention, a partition portion is disposed in the sidewall air outlet duct, the partition portion partitions the sidewall air outlet duct to form the sidewall main air outlet duct and the sidewall branch air outlet duct, and a connecting air duct communicating the sidewall main air outlet duct and the sidewall branch air outlet duct is formed between the partition portion and the sidewall of the sidewall air outlet duct.

As a further improvement of an embodiment of the present invention, an end of the partition portion away from the connecting air duct is connected to the upper cover plate.

As a further improvement of the embodiment of the present invention, a longitudinal section formed by connecting the main side wall air outlet duct, the connecting air duct and the side wall branch air outlet duct is C-shaped, and the longitudinal section is parallel to the first end portion.

As a further improvement of an embodiment of the present invention, the circulation air duct includes a transition air duct communicated with the side wall branch air duct and a main circulation branch duct far away from the side wall branch air duct, and a height of the transition air duct is greater than a height of the main circulation branch duct.

As a further improvement of an embodiment of the present invention, when the door body is in the closed state, the ventilation duct extends from the first side wall to the second side wall.

As a further improvement of an embodiment of the present invention, the air duct cover plate includes a front cover plate connected to the upper cover plate and disposed facing the second end, and the front cover plate is provided with a side air outlet communicated with the main air outlet duct on the side wall.

As a further improvement of the embodiment of the present invention, the first sidewall is provided with a first sidewall main air outlet duct, the second sidewall is provided with a second sidewall main air outlet duct, and the front cover plate is provided with a first sidewall air outlet communicated with the first sidewall main air outlet duct and a second sidewall air outlet communicated with the second sidewall main air outlet duct.

As a further improvement of the embodiment of the present invention, the front cover plate is provided with a first end air outlet, the evaporation cavity is provided with a first end air outlet channel communicated with the first end air outlet, and the air outlet directions of the first side wall main air outlet channel, the second side wall main air outlet channel and the first end air outlet channel are staggered.

Compared with the prior art, the invention has the beneficial effects that: the horizontal air-cooled refrigerator provided by the embodiment of the invention greatly improves the air circulation in a narrow space by means of forced air circulation, and solves the problem of frosting in narrow spaces or local low-temperature positions such as a cabinet opening, the top of an upper cover plate and the like.

Drawings

Fig. 1 is a sectional view of a horizontal type air-cooled refrigerator according to a first embodiment of the present invention;

FIG. 2 isbase:Sub>A schematic view A-A of FIG. 1;

FIG. 3 is a schematic view of B-B of FIG. 1;

FIG. 4 is a schematic view of C-C of FIG. 1;

FIG. 5 is an enlarged view of a portion of FIG. 1;

fig. 6 is a first angle schematic view of the wind guide strip according to the first embodiment of the present invention;

fig. 7 is a second angle schematic view of the wind guide strips according to the first embodiment of the present invention;

fig. 8 is a sectional view of a horizontal type air-cooled refrigerator according to a second embodiment of the present invention;

FIG. 9 is a schematic view of A1-A1 of FIG. 8;

FIG. 10 is a schematic view of B1-B1 of FIG. 8;

FIG. 11 is a schematic view of C1-C1 of FIG. 8;

fig. 12 is a sectional view of a horizontal type air-cooled refrigerator according to a third embodiment of the present invention;

FIG. 13 is a schematic view A3-A3 of FIG. 12;

FIG. 14 is a schematic view of B3-B3 of FIG. 12;

FIG. 15 is an enlarged view of a portion of FIG. 12;

fig. 16 is a sectional view of a horizontal type air-cooled refrigerator according to a fourth embodiment of the present invention;

FIG. 17 is a schematic view of A4-A4 of FIG. 16;

FIG. 18 is a schematic view of B4-B4 of FIG. 16;

FIG. 19 is an enlarged view of a portion of FIG. 16;

fig. 20 is a sectional view of a horizontal type air-cooled refrigerator according to a fifth embodiment of the present invention;

FIG. 21 is a schematic view A5-A5 of FIG. 20;

FIG. 22 is a schematic view of B5-B5 of FIG. 20;

FIG. 23 is an enlarged view of a portion of FIG. 22;

fig. 24 is a sectional view of a horizontal type air-cooled refrigerator according to a sixth embodiment of the present invention;

FIG. 25 is a schematic view A6-A6 of FIG. 24;

FIG. 26 is a schematic view of B6-B6 of FIG. 24;

FIG. 27 is an enlarged view of a portion of FIG. 26;

fig. 28 is a sectional view of a horizontal type air-cooled refrigerator according to a seventh embodiment of the present invention;

FIG. 29 is a schematic view A7-A7 of FIG. 28;

FIG. 30 is a schematic view of B7-B7 of FIG. 28;

fig. 31 is an enlarged view of a part of fig. 28.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the various drawings of the present invention, some dimensions of structures or portions are exaggerated relative to other structures or portions for convenience of illustration, and thus, are used only to illustrate the basic structure of the subject matter of the present invention.

Also, terms used herein such as "upper," "above," "lower," "below," and the like, denote relative spatial positions of one element or feature with respect to another element or feature as illustrated in the figures for ease of description. The spatially relative positional terms may be intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" the other elements or features. Thus, the exemplary term "below" can encompass both an orientation of above and below. The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

An embodiment of the present invention provides a horizontal air-cooled refrigerator 100, and the horizontal air-cooled refrigerator 100 includes a horizontal cabinet 10 and a door 20.

The horizontal cabinet 10 has a three-dimensional structure with a cavity S, and here, the outer contour of the horizontal cabinet 10 is a rectangular parallelepiped, but not limited thereto.

The horizontal cabinet 10 includes a first end 11 and a second end 13 disposed opposite to each other, a first sidewall 15 and a second sidewall 17 connecting the first end 11 and the second end 13 and disposed opposite to each other, and a bottom 19 far away from the cabinet opening of the horizontal cabinet 10.

That is, a cavity S for accommodating articles is formed in the middle of the horizontal cabinet 10, the first end 11, the first sidewall 15, the second end 13, and the second sidewall 17 are sequentially connected to enclose the peripheral edge of the cavity S, and the four edges of the bottom 19 are respectively connected to the first end 11, the first sidewall 15, the second end 13, and the second sidewall 17.

The door body 20 is disposed above the horizontal cabinet 10, and the door body 20 is used for covering the cabinet opening of the horizontal cabinet 10.

Here, the door 20 and the horizontal cabinet 10 may be connected in a rotating manner, a sliding manner or in other manners.

The door 20 may be an integrated door, or a door formed by combining at least two split doors.

The structure of the door 20 itself and the matching manner of the door 20 and the horizontal cabinet 10 can be determined according to actual conditions.

In this embodiment, the horizontal air-cooled refrigerator 100 includes an evaporation cavity 12, an air outlet system and an air return system.

A fan 121 and an evaporator 122 are disposed in the evaporation chamber 12.

The fan 121 may be a centrifugal fan.

The defrosting process of the horizontal air-cooled refrigerator 100 can adopt electric heating.

The cold air in the evaporation cavity 12 is transmitted to each part of the horizontal air-cooled refrigerator 100 through the air outlet system.

The cold air of the horizontal air-cooled refrigerator 100 flows back to the evaporation cavity 12 through the air return system, so that the circulation of the cold air in the horizontal air-cooled refrigerator 100 is realized.

The air outlet and return systems of the horizontal air-cooled refrigerator 100 are provided in various embodiments, which will be described in detail below.

In a first embodiment, referring to fig. 1 to 4, a horizontal type air-cooled refrigerator 100 includes a horizontal type cabinet 10 and a door 20.

The first end 11 is provided with an evaporation chamber 12, the second end 13 is provided with a second end return duct 131, the bottom 19 is provided with a bottom return duct 191, and the second end return duct 131 is communicated with the bottom return duct 191.

Here, the second end return duct 131 is communicated with the bottom return duct 191, so that the return air passage area of the lower left corner (i.e. the side far away from the evaporation cavity 12) of the horizontal cabinet 10 can be effectively increased, the resistance of the return air duct is reduced, and the return air volume of the lower left corner is ensured.

Specifically, the second end air return duct 131 includes a plurality of second end air return openings 1311, and the plurality of second end air return openings 1311 are disposed near the bottom 19.

The plurality of second end air returns 1311 extend from the first side wall 15 to the second side wall 17, i.e., the plurality of second end air returns 1131 extend along the length of the second end 13.

Further, the second end air return duct 131 is disposed near the bottom 19, and the second end air return duct 131 is far away from the cabinet opening of the horizontal cabinet 10.

That is to say, the second end air return duct 131 is located below the second end 13, and the plurality of second end air return inlets 1311 for return air in the second end air return duct 131 are also located below the second end 13, so that the cold air sinking in the cavity S of the horizontal cabinet 10 can enter the second end air return duct 131 through the plurality of second end air return inlets 1311, and enter the bottom air return duct 191 through the second end air return duct 131.

Here, for example, the longitudinal section formed by connecting the second end air return duct 131 and the bottom air return duct 191 is "L" shaped, and the longitudinal section is parallel to the first sidewall 15.

The second end air return duct 131 and the bottom air return duct 191 may be embedded in the foaming layer of the horizontal cabinet 10.

The second end return duct 131 extends along the length direction of the second end 13 (i.e., the direction of the first side wall 15 toward the second side wall 17).

The bottom air return channel 191 extends through the entire bottom 19 region, i.e., the bottom air return channel 191 extends from the first end 11 to the second end 13, and meanwhile, the bottom air return channel 191 extends from the first side wall 15 to the second side wall 17.

The first end 11 is provided with a first end return duct 111, the first end return duct 111 is communicated with the bottom return duct 191 and the evaporation cavity 12, and the first end return duct 111 is provided with a plurality of first end return air inlets 1111.

In the prior art, because the horizontal air-cooled refrigerator 100 adopts the modes of upper air supply and bottom air return, if the design of the bottom air return is unreasonable, the problem of uneven air return is easily caused, and the bottom temperature is locally high, especially the positions of the lower left corner and the lower right corner.

In the present embodiment, considering that uneven air supply is likely to occur at the bottom lower left corner and the bottom lower right corner, return air channels, that is, the second end return air duct 131 located at the lower left corner and the first end return air duct 111 located at the lower right corner, are respectively arranged at the two positions.

The first end return air duct 111 at the lower right corner is closer to the fan 121 (the first end return air duct 111 is directly connected to the evaporation cavity 12), the air duct resistance is smaller, therefore, most of the air flows back to the fan 121 from the first end return air inlet 1111 (namely flows back to the evaporation cavity 12), if the resistance of the designed lower left corner return air duct is too large, even if the return air inlet is arranged in the lower left corner return air duct, the air cannot return from the lower left corner return air duct, therefore, in this embodiment, a plurality of second end return air inlets 131 are arranged below the second end 13, and a bottom return air duct 191 is designed in the whole bottom 19 to increase the return air passage area at the lower left corner, reduce the return air duct resistance, and ensure the return air quantity at the lower left corner (namely the second end return air inlet 131).

In this embodiment, the first end air returns 1111 and the second end air returns 1311 are disposed opposite to each other.

That is, the first end air returns 1111 are located at the lower right corner of the horizontal cabinet 10, and the second end air returns 1311 are located at the lower left corner of the horizontal cabinet 10.

Each of the first end air returns 1111 extends in a direction from the first sidewall 15 to the second sidewall 17, that is, each of the first end air returns 1111 extends in a horizontal direction, and here, a plurality of the first end air returns 1111 are arranged in a matrix, for example, three rows of the first end air returns 1111 are taken as an example.

Each second end air return opening 1311 extends in a direction toward the bottom 19 of the cabinet 10, i.e., each second end air return opening 1311 extends in a vertical direction, and here, a plurality of second end air return openings 1311 are arranged in a row.

In the vertical direction, the heights of the first end air returns 1111 are greater than the heights of the second end air returns 1311, but not limited thereto.

In this embodiment, the first sidewall 15 and/or the second sidewall 17 are/is provided with sidewall air outlets, and the sidewall air outlets are disposed near the cabinet opening of the horizontal cabinet 10.

Here, the first sidewall 15 has a first sidewall air outlet channel 151, the second sidewall 17 has a second sidewall air outlet channel 171, and the first sidewall air outlet channel 151 and the second sidewall air outlet channel 171 are embedded in the foam layer.

The first end portion 11 has a first end portion air outlet channel 112, and the air outlet directions of the first side wall air outlet channel 151, the second side wall air outlet channel 171 and the first end portion air outlet channel 112 are staggered.

It should be noted that the phrase "staggered arrangement" means that at least some of the wind blown out from the first sidewall air outlet channel 151, the second sidewall air outlet channel 171, and the first end air outlet channel 112 are located in the same plane, and can impact each other.

Specifically, the horizontal air-cooled freezer 100 of the embodiment has the first end air outlet channel 112 at the first end 11 of the horizontal cabinet 10, and the first side wall air outlet channel 151 and the second side wall air outlet channel 171 are respectively disposed on the first side wall 15 and the second side wall 17, thereby realizing three-sided air supply, wherein the air outlet direction of the first end air outlet channel 112 faces the second end 13 of the horizontal cabinet 10, so that the cold air output from the air outlet of the first end air outlet channel 112 can cover the whole cross section of the horizontal cabinet 10, the air outlet directions of the first side wall air outlet channel 151 and the second side wall air outlet channel 171 are staggered with the air outlet direction of the first end air outlet channel 112, the air output from the first side wall air outlet channel 151 and the second side wall air outlet channel 171 impacts the air output from the first end air outlet channel 112, thereby forming a vortex airflow inside the horizontal cabinet 10, and the vortex airflow can ensure that the longitudinal section of the horizontal cabinet 10 keeps the cold air uniformly distributed, thereby integrally keeping the temperature in the horizontal cabinet 10 uniform to improve the refrigeration effect.

The first end air outlet channel 112, the first side wall air outlet channel 151, and the second side wall air outlet channel 171 are located below the cabinet opening of the horizontal cabinet 10, and the cold air output from the first end air outlet channel 112, the first side wall air outlet channel 151, and the second side wall air outlet channel 171 sinks through heat exchange and then reenters the evaporation cavity 12 from the air return channel (including the first end air return channel 111, the second end air return channel 131, and the bottom air return channel 191) at the lower portion by using the principle that the cold air naturally sinks.

In addition, taking the first sidewall 15 as an example, the first sidewall air-out channel 151 has a plurality of first sidewall air outlets 1511 for air-out, in the flowing direction of the airflow inside the first sidewall air-out channel 151, the size of the first sidewall air outlet 1511 near the first end 11 is smaller than the size of the first sidewall air outlet 1511 near the second end 13, here, taking the size of the first sidewall air outlet 1511 as an example, so as to ensure two-side air circulation and improve temperature uniformity.

The plurality of first sidewall outlets 1511 may not only discharge air in a horizontal direction, but also discharge air downwards, for example, a partition may be disposed to discharge air in multiple directions from the first sidewall outlets 1511.

When the first sidewall air outlet 1511 blows air downwards, the first sidewall air outlet 1511 is used for directly conveying cold air to the lower space of the horizontal cabinet 10, so as to further improve the distribution uniformity of the cold air.

It can be seen that, in a specific example, the length and the width of the first sidewall air outlet 1511 close to the second end 13 are both greater than the length and the width of the adjacent first sidewall air outlet 1511, on one hand, the air output in the horizontal direction can be increased, on the other hand, the cool air conveyed to the lower left corner of the horizontal cabinet 10 can be increased, and then the air return amount of the lower left corner can also be increased.

It can be seen that the horizontal air-cooled refrigerator 100 forms a complete and uniform air circulation through the air supply on the top three sides (i.e. the first end air outlet channel 112, the first side wall air outlet channel 151, and the second side wall air outlet channel 171) and the return air on the bottom three sides (i.e. the first end return air channel 111, the second end return air channel 131, and the bottom return air channel 191), so as to achieve the purpose of uniformly returning air and solve the problem of high bottom temperature.

In the present embodiment, in order to prevent frost from forming in the gap between the top of the evaporation chamber 12 and the door 20, a ventilation duct 60 is provided at the top of the evaporation chamber 12.

Specifically, with reference to fig. 5 to 7, an air outlet may be disposed at the top of the evaporation cavity 12, and an air guide strip 40 is disposed at the air outlet, so that the air sent out from the evaporation cavity 12 is divergently sent to each position in the horizontal direction by the air guide strip 40, thereby achieving uniform air supply at the circulation air duct 60 and preventing frost from being generated at the position.

In a second embodiment, referring to fig. 8 to 11, a horizontal air-cooled refrigerator 100a includes a horizontal cabinet 10a and a door 20a.

For convenience of description, like numbers are used for like or similar elements, but for convenience of description only, like numbers may be used for different elements, and the same is true for the following embodiments.

The horizontal cabinet 10a includes a first end 11a and a second end 13a disposed opposite to each other, a first sidewall 15a and a second sidewall 17a disposed opposite to each other and connecting the first end 11a and the second end 13a, and a bottom 19a far from the opening of the horizontal cabinet 10 a.

The first end 11a is provided with an evaporation cavity 12a, at least one of the first side wall 15a and the second side wall 17a is provided with a side wall air return duct (152 a, 172 a), the bottom 19a is provided with a bottom air return duct 191a, and the side wall air return duct (152 a, 172 a) is communicated with the bottom air return duct 191a.

A blower fan 121a and an evaporator 122a are provided in the evaporation chamber 12 a.

Here, the side wall return air ducts (152 a, 172 a) and the bottom return air duct 191a are communicated with each other, which can effectively increase the return air passage area of the horizontal cabinet 10a, reduce the return air duct resistance, and ensure the return air volume at the lower left corner and below the horizontal cabinet 10 a.

Specifically, the first sidewall 15a is provided with a first sidewall return air duct 152a, the second sidewall 17a is provided with a second sidewall return air duct 172a, and both the first sidewall return air duct 152a and the second sidewall return air duct 172a are communicated with the bottom return air duct 191a.

At this time, the longitudinal section formed by connecting the first side-wall air return duct 152a, the bottom air return duct 191a, and the second side-wall air return duct 172a is concave, and the longitudinal section is parallel to the first end portion 11.

Taking the first sidewall air return duct 152a as an example, the sidewall air return duct 151a includes a plurality of first sidewall air return openings 1521a, and the plurality of first sidewall air return openings 1521a are disposed near the second end 13 a.

Further, the plurality of first sidewall air returns 1521a are disposed near the second end 13a and the bottom 19a, and the plurality of first sidewall air returns 1521a are far away from the first end 11a.

That is to say, the first sidewall return air duct 152a is located at the lower left corner of the horizontal cabinet 10a, and the first sidewall return air inlets 1521a for return air in the first sidewall return air duct 152a are also located at the lower left corner of the horizontal cabinet 10a, so that the cool air sinking in the cavity S of the horizontal cabinet 10a can enter the first sidewall return air duct 152a through the first sidewall return air inlets 1521a, and enter the bottom return air duct 191a through the first sidewall return air duct 152 a.

The first sidewall return air duct 152a and the bottom return air duct 191a may be embedded in the foaming layer of the horizontal cabinet 10 a.

In a direction from the second end 13a toward the first end 11a, the length of the first sidewall return air channel 152a is much smaller than the length of the first sidewall 15 a.

The bottom air return channel 191a extends through the entire bottom 19a region, i.e., the bottom air return channel 191a extends from the first end 11a to the second end 13a, and the bottom air return channel 191a extends from the first side wall 15a to the second side wall 17a.

The first end 11a is provided with a first end return air duct 111a, the first end return air duct 111a communicates with the bottom return air duct 191a and the evaporation cavity 12a, and the first end return air duct 111a is provided with a plurality of first end return air inlets 1111a.

In the prior art, because the horizontal air-cooled refrigerator 100a adopts the modes of upper air supply and bottom air return, if the design of the bottom air return is unreasonable, the problem of uneven air return is easily caused, and the bottom temperature is locally high, especially the positions of the lower left corner and the lower right corner.

In the present embodiment, considering that uneven air supply is likely to occur at the bottom lower left corner and the bottom lower right corner, return air channels, that is, the first sidewall return air duct 152a located at the lower left corner and the first end return air duct 111a located at the lower right corner, are respectively disposed at these two positions.

The first end return air duct 111a at the lower right corner is closer to the fan 121a (the first end return air duct 111a is directly connected to the evaporation cavity 12 a), and the air duct resistance is smaller, so most of the air flows back to the fan 121a from the first end return air inlet 1111a (i.e. flows back to the evaporation cavity 12 a), if the resistance of the designed lower left corner return air duct is too large, even if the return air inlet is arranged in the lower left corner return air duct, the air cannot return from the lower left corner return air duct, therefore, in this embodiment, a plurality of first side wall return air inlets 1521a are arranged at the lower left corner of the first side wall 15a, and a bottom return air duct 191a is designed at the whole bottom 19a to increase the area of the return air duct at the lower left corner, so as to reduce the resistance of the return air duct and ensure the return air amount at the lower left corner (i.e. the first side wall return air inlet 1521 a).

In the present embodiment, the extending direction of each first end air return opening 1111a is the direction from the first side wall 15a to the second side wall 17a, i.e. each first end air return opening 1111a extends along the horizontal direction, here, a plurality of first end air return openings 1111a are arranged in a matrix, and three rows of first end air return openings 1111a are taken as an example.

Each first sidewall air return opening 1521a extends in a direction from the opening of the horizontal cabinet 10a toward the bottom 19a, i.e., each first sidewall air return opening 1521a extends in a vertical direction, and herein, a plurality of first sidewall air return openings 1521a are arranged in a row.

In the vertical direction, the heights of the first end air returns 1111a are greater than the heights of the first sidewall air returns 1521a, but not limited thereto.

It should be noted that the plurality of first sidewall air returns 1521a may also extend from the first end 11a to the second end 13a, i.e. the plurality of first sidewall air returns 1521a are distributed over the first sidewall 15 a.

For the description of the second sidewall air outlet channel 171a and the second sidewall air return port 1721a, reference may be made to the first sidewall air outlet channel 151a and the first sidewall air return port 1521a, which is not described herein again.

In addition, in combination with the first embodiment, the second end 13a may also be provided with a second end air return duct, and the second end air return duct communicates with the sidewall air return ducts (152 a, 172 a) and/or the bottom air return duct 191a.

In this embodiment, the first sidewall 15a and/or the second sidewall 17a are/is provided with a sidewall air outlet channel, and the sidewall air outlet channel is disposed near the cabinet opening of the horizontal cabinet 10 a.

Here, the first sidewall 15a has a first sidewall air outlet channel 151a, the second sidewall 17a has a second sidewall air outlet channel 171a, the first sidewall air outlet channel 151a and the second sidewall air outlet channel 171a are embedded in the foam layer, and the first sidewall air outlet channel 151a and the second sidewall air outlet channel 171a are respectively located above the first sidewall air return channel 152a and the second sidewall air return channel 172 a.

The first end portion 11a has a first end portion air outlet channel 112a, and the air outlet directions of the first side wall air outlet channel 151a, the second side wall air outlet channel 171a and the first end portion air outlet channel 112a are staggered.

For other descriptions of this embodiment, reference may be made to the first embodiment, which is not described herein again.

In the third embodiment, referring to fig. 12 to 15, the horizontal type air-cooled refrigerator 100b includes a horizontal type cabinet 10b and a door 20b.

The horizontal cabinet 10b includes a first end 11b and a second end 13b opposite to each other, a first sidewall 15b and a second sidewall 17b opposite to each other and connecting the first end 11b and the second end 13b, and a bottom 19b far from the opening of the horizontal cabinet 10 b.

An air duct cover plate 16b is arranged at the end inner container 14b of the horizontal cabinet body 10 b.

Here, the end portion inner container 14b is an inner container region at the first end portion 11b.

The air duct cover plate 16b and the end inner container 14b are enclosed to form an evaporation cavity 12b, and a fan 121b and an evaporator 122b are arranged in the evaporation cavity 12b.

The duct cover 16b includes an upper cover 161b disposed at the cabinet opening of the horizontal cabinet 10b, and a front cover 162b coupled to the upper cover 161b and disposed facing the second end 13b, the front cover 162b and the upper cover 161b being disposed perpendicular to each other.

The upper cover plate 161b includes a first end 1611b close to the end portion inner container 14b, an inner container receding portion 141b is formed in a region of the end portion inner container 14b close to the door body 20b, and a wind guide duct 50b for guiding wind to exit toward the opening of the horizontal cabinet 10b is formed between the first end 1611b and the inner container receding portion 141 b.

Here, the inner container receding portion 141b is substantially a notch located in an upper left corner region of the end inner container 14b, so that a gap (i.e., the air guide duct 50 b) is formed between the end inner container 14b and the first end 1611b through the notch, and the cool air in the evaporation cavity 12b can be conveyed to the outside of the evaporation cavity 12b through the gap.

When the door 20b is in the closed state, a flow duct 60b communicating with the guide duct 50b is formed between the lower end surface of the door 20b and the upper cover plate 161 b.

Here, the notch is in a shape of "C" opening toward the second end 13b, and can further assist the transmission of the cool air toward the ventilation duct 60b (i.e., the direction of the second end 13 b).

In the present embodiment, the key to solving these problems is to improve the air circulation at the positions where the frost is most likely to form in the horizontal air-cooled refrigerator 100b, such as the top of the upper cover plate 161b, the opening of the horizontal cabinet 10b, and the like, where air is not circulated, the local temperature is low, and wet air is likely to enter.

Based on this, in the present embodiment, the cold air blown out from the evaporation cavity 12b enters the ventilation duct 60b through the diversion duct 50b, that is, the cold air flows through the gap between the lower end surface of the door 20b and the upper cover plate 161b, and although the temperature above the upper cover plate 161b is low, the cold air flowing through the gap can be taken away by the cold air even if some frost is formed; that is, the present embodiment adopts the top air supply mode of the evaporation cavity 12b, and with the help of forced air circulation, the air circulation in the narrow space is greatly improved, and the problem of frosting in the narrow space or the local low temperature position such as the cabinet opening and the top of the upper cover plate 161b is solved.

In the present embodiment, the door body 20b is provided with a door lining relief portion 201b on a lower end surface thereof, and a flow duct 60b is formed between the lower end surface of the door lining relief portion 201b and the upper cover plate 161 b.

The door lining receiving portion 201b is a recess located on the lower end surface of the door body 20b, and thus the gap between the lower end surface of the door body 10b and the upper cover 161b is increased, that is, the space of the air flow passage 60b is increased.

That is, in order to create a space for the circulation of the cool air in the ventilation duct 60b, the foaming layer on the top of the horizontal cabinet 10b, the door lining of the door 10b and the corresponding position of the top of the upper cover plate 161b are correspondingly given way, and the smooth flow of the cool air in the ventilation duct 60b is realized through the inner container giving-way portion 141b, the door lining giving-way portion 201b, and the like.

In this embodiment, the top of the evaporation cavity 12b is provided with a top air outlet channel 123b communicated with the guide air channel 50b, and the top air outlet channel 123b is located below the upper cover plate 161 b.

At this time, the top outlet duct 123b and the air guide duct 50b are connected to form an "L" shaped duct.

In this embodiment, the front cover 162b of the duct cover 16b is provided with a first end air outlet 1121b, and the evaporation cavity 12b is provided with a first end air outlet 112b communicated with the first end air outlet 1121 b.

The first end air outlet channel 112b is communicated with the top air outlet channel 123b, and the first end air outlet channel 112b and the top air outlet channel 123b are located at the same height, but not limited thereto.

In this embodiment, at least one of the first sidewall 15b and the second sidewall 17b is provided with a sidewall air outlet (151 b, 171 b), the front cover plate 162b is provided with a side air outlet communicated with the sidewall air outlet (151 b, 171 b), and the evaporation cavity 12b is provided with a side air outlet communicated with the side air outlet.

Here, the first sidewall 15b is provided with a first sidewall air-out passage 151b, the second sidewall 17b is provided with a second sidewall air-out passage 171b, and the front cover 162b is provided with a first sidewall air-out port communicating with the first sidewall air-out passage 151b and a second sidewall air-out port communicating with the second sidewall air-out passage 171 b.

In summary, the wind blown out of the fan 121b is divided into three parts: the first part is conveyed to the first side wall air outlet channel 151b and the second side wall air outlet channel 171b through the side air outlet channels on both sides, the second part is conveyed towards the second end part 13b through the front first end part air outlet channel 112b, and the third part is conveyed to the flow guide air channel 50b through the rear top air outlet channel 123b, and then enters the circulation air channel 60b.

Here, the air outlet directions of the first side wall outlet duct 151b, the second side wall outlet duct 171b, and the first end outlet duct 112b are staggered.

It should be noted that the "staggered arrangement" means that at least part of the wind blown out from the first side wall air outlet channel 151b, the second side wall air outlet channel 171b and the first end portion air outlet channel 112b is located in the same plane, and can realize mutual impact.

Specifically, in the horizontal air-cooled freezer 100b of the embodiment, the first end 11b of the horizontal cabinet 10b is provided with the first end air outlet channel 112b, and the first sidewall 15b and the second sidewall 17b are respectively provided with the first sidewall air outlet channel 151b and the second sidewall air outlet channel 171b, so as to achieve three-sided air supply, wherein the air outlet direction of the first end air outlet channel 112b faces the second end 13b of the horizontal cabinet 10b, so that the cold air output from the air outlet of the first end air outlet channel 112b can cover the whole cross section of the horizontal cabinet 10b, the air outlet directions of the first sidewall air outlet channel 151b and the second sidewall air outlet channel 171b and the air outlet direction of the first end air outlet channel 112b are staggered, the air output from the first sidewall air outlet channel 151b and the second sidewall air outlet channel 171b impacts the air output from the first end air outlet channel 112b, so as to form a vortex airflow inside the horizontal cabinet 10b, the longitudinal section of the horizontal cabinet 10b can keep the cold air uniformly distributed, and thus the temperature of the horizontal cabinet 10b can be kept uniform as a whole to improve the refrigeration effect.

In this embodiment, the bottom 19b of the horizontal cabinet 10b is provided with a bottom air return duct 191b, and a region of the bottom 19b near the second end 13b is provided with a bottom air return opening 1911b.

The bottom air return channel 191b extends through the entire bottom 19b region, i.e., the bottom air return channel 191b extends from the first end 11b to the second end 13b, and the bottom air return channel 191b extends from the first side wall 15b to the second side wall 17b.

The first end 11b is provided with a first end return duct 111b, the first end return duct 111b is communicated with the bottom return duct 191b and the evaporation cavity 12b, and the first end return duct 111b is provided with a plurality of first end return air inlets 1111b.

The cold air of the horizontal cabinet 10b may enter the bottom air return duct 191b through the bottom air return opening 1911b and flow back to the evaporation cavity 12b through the first end air return duct 111b, or the cold air directly enters the first end air return duct 111b through the first end air return opening 1111b and then flows back to the evaporation cavity 12b.

Here, the first end air outlet channel 112b, the first side wall air outlet channel 151b and the second side wall air outlet channel 171b are all located below the cabinet opening of the horizontal cabinet 10b, and by using the principle that cold air naturally sinks, cold air output from the first end air outlet channel 112b, the first side wall air outlet channel 151b and the second side wall air outlet channel 171b sinks through heat exchange and then re-enters the evaporation cavity 12b from the air return channel (including the bottom air return channel 191b and the first end air return channel 111 b) at the lower portion.

In addition, taking the first sidewall 15b as an example, the first sidewall air-out channel 151b has a plurality of first sidewall air-out openings 1511b for air-out, in the flowing direction of the airflow inside the first sidewall air-out channel 151b, the size of the first sidewall air-out opening 1511b near the first end portion 11b is smaller than the size of the first sidewall air-out opening 1511b near the second end portion 13b, here, taking the example that the size of the first sidewall air-out opening 1511b is gradually increased, so that the circulation of the two-sided air can be ensured, and the temperature uniformity can be improved.

The plurality of first sidewall outlets 1511b may not only discharge air in a horizontal direction, but also discharge air downwards, for example, a partition may be disposed to discharge air in multiple directions from the first sidewall outlets 1511 b.

When the first sidewall air outlet 1511b blows air downwards, the first sidewall air outlet 1511b is used for directly conveying cold air to the lower space of the horizontal cabinet 10b, so as to further improve the distribution uniformity of the cold air.

It can be seen that, in a specific example, the length and width of the first sidewall air outlet 1511b close to the second end 13b are both greater than the length and width of the adjacent first sidewall air outlet 1511b, so that on one hand, the air output in the horizontal direction can be increased, on the other hand, the cool air delivered to the lower left corner of the horizontal cabinet 10b can be increased, and further, the air return amount in the lower left corner can be increased in an auxiliary manner.

It can be seen that the horizontal air-cooled refrigerator 100b forms a complete and uniform air circulation by the air supply (i.e., the first end air outlet channel 112b, the first side wall air outlet channel 151b, and the second side wall air outlet channel 171 b) from the three sides at the top and the air return from the bottom, so as to achieve the purpose of uniform air return and solve the problem of high bottom temperature.

In the fourth embodiment, referring to fig. 16 to 19, the horizontal type air-cooled refrigerator 100c includes a horizontal type cabinet 10c and a door 20c.

The horizontal cabinet 10c includes a first end 11c and a second end 13c opposite to each other, a first sidewall 15c and a second sidewall 17c opposite to each other and connecting the first end 11c and the second end 13c, and a bottom 19c far from the opening of the horizontal cabinet 10 c.

An air duct cover plate 16c is arranged at the end inner container 14c of the horizontal cabinet body 10 c.

Here, the end portion inner container 14c is an inner container region at the first end portion 11 c.

The air duct cover plate 16c and the end inner container 14c are enclosed to form an evaporation cavity 12c, and a fan 121c and an evaporator 122c are arranged in the evaporation cavity 12c.

The duct cover 16c includes an upper cover 161c disposed at the cabinet opening of the horizontal cabinet 10c, and a front cover 162c disposed opposite to the second end 13c and connecting the upper cover 161c, and the front cover 162c and the upper cover 161c are disposed perpendicular to each other.

The upper cover plate 161c includes a first end 1611c close to the end portion inner container 14c, a diversion air duct 50c for discharging air toward the cabinet opening direction of the horizontal cabinet 10c is formed between the first end 1611c and the end portion inner container 14c, a door body air outlet 202c corresponding to the upper cover plate 161c is arranged on the lower end surface of the door body 20c, the door body 20c is provided with a door body air duct 203c communicated with the door body air outlet 202c, and when the door body 20c is in a closed state, the door body air duct 203c is communicated with the diversion air duct 50c.

When the door 20c is in the closed state, a circulation air duct 60c is formed between the lower end surface of the door 20c and the upper cover plate 161c, and the circulation air duct 60c is communicated with the door duct 203c.

In the present embodiment, the key to solving the problems is to improve the air circulation at the positions where the frost is most likely to be formed in the horizontal air-cooled refrigerator 100c, such as the top of the upper cover plate 161c, the opening of the horizontal cabinet 10c, and the like, where air is not circulated, the local temperature is low, and wet air is likely to enter.

Based on this, in this embodiment, the cold air blown out from the evaporation cavity 12c enters the door body air duct 203c through the diversion air duct 50c, and then enters the circulation air duct 60c through the door body air outlet 202c, that is, at this time, the cold air flows in the gap between the lower end surface of the door body 20c and the upper cover plate 161c, although the temperature above the upper cover plate 161c is lower, the cold air flowing in the gap can be taken away by the cold air even if some frost is formed; that is, the present embodiment adopts the top air supply mode of the evaporation cavity 12c, and with the help of forced air circulation, the air circulation in the narrow space is greatly improved, and the problem of frosting in the narrow space or the local low temperature position such as the cabinet opening and the top of the upper cover plate 161c is solved.

In this embodiment, an inner container receding portion 141c is formed in a region of the end inner container 14c close to the door body 20c, and a flow guiding air duct 50c is formed between the first end 1611c and the inner container receding portion 141 c.

Here, the inner container relief portion 141c is substantially a notch located in the upper left corner region of the end inner container 14c, so that a gap (i.e., the air guiding duct 50 c) is formed between the end inner container 14c and the first end 1611c through the notch, and the cool air in the evaporation cavity 12c can be delivered to the outside of the evaporation cavity 12c through the gap.

The end portion inner container 14c is provided with a blocking portion 142c near the ventilation duct 60c, and the blocking portion 142c is used for blocking the air guide duct 50c and the ventilation duct 60c.

The blocking portion 142c is connected to the first end 1611c of the upper cover plate 161c, and when the door 20c is in the closed state, the blocking portion 142c is just located between the upper cover plate 161c and the door air duct 203c, so as to block the cold air in the air guide duct 50c from directly entering the air circulation duct 60c, and at this time, the cold air in the air guide duct 50c enters the air circulation duct 60c through the door air duct 203c, that is, the cold air at this time is transmitted from top to bottom to the air circulation duct 60c.

Of course, the blocking portion 142c may be eliminated, and at this time, part of the cool air in the air guide duct 50c may directly enter the air circulation duct 60c.

In the present embodiment, a door lining relief portion 201c is provided on the lower end surface of the door body 20c, and when the door body 20c is in the closed state, a flow duct 60c is formed between the lower end surface of the door lining relief portion 201c and the upper cover plate 161 c.

The door lining relief portion 201c is a recess located on the lower end surface of the door body 20c.

Here, the concave portion is substantially located below the door outlet 202c, that is, the lower end surface of the door outlet 202c is higher than the lower end surface of the other region of the door 20c.

In this way, the gap between the lower end surface of the door 10c and the upper cover 161c is increased, that is, the space of the air duct 60c is increased.

That is, in order to create a space for the circulation of the cool air in the ventilation duct 60c, the foam layer on the top of the horizontal cabinet 10c, the door lining of the door 10c and the top of the upper cover plate 161c are correspondingly set aside, and the smooth flow of the cool air in the ventilation duct 60c is realized by the inner container setback 141c, the door lining setback 201c, and the like.

In this embodiment, the top of the evaporation cavity 12c is provided with a top air outlet 123c communicated with the air guiding duct 50c, and the top air outlet 123c is located below the upper cover plate 161 c.

At this time, the top outlet duct 123c and the guide duct 50c are connected to form an "L" shaped duct.

In this embodiment, the front cover plate 162c of the air duct cover 16c is provided with a first end air outlet 1121c, and the evaporation cavity 12c is provided with a first end air outlet 112c communicated with the first end air outlet 1121 c.

The first end air outlet channel 112c and the top air outlet channel 123c are communicated with each other, and the first end air outlet channel 112c and the top air outlet channel 123c are located at the same height, but not limited thereto.

In this embodiment, at least one of the first sidewall 15c and the second sidewall 17c is provided with a sidewall air outlet (151 c, 171 c), the front cover plate 162c is provided with a side air outlet communicated with the sidewall air outlet (151 c, 171 c), and the evaporation cavity 12c is provided with a side air outlet communicated with the side air outlet.

Here, the first sidewall 15c is provided with a first sidewall air-out channel 151c, the second sidewall 17c is provided with a second sidewall air-out channel 171c, and the front cover 162c is provided with a first sidewall air outlet communicating with the first sidewall air-out channel 151c and a second sidewall air outlet communicating with the second sidewall air-out channel 171 c.

In summary, the wind blown out from the fan 121c is divided into three parts: the first part is conveyed to the first side wall air outlet channel 151c and the second side wall air outlet channel 171c through the side air outlet channels on the two sides, the second part is conveyed towards the second end part 13c direction through the first end part air outlet channel 112c in front, and the third part is conveyed to the flow guide air channel 50c through the top air outlet channel 123c on the rear side, and then enters the circulation air channel 60c.

Here, the air outlet directions of the first side wall outlet duct 151c, the second side wall outlet duct 171c, and the first end outlet duct 112c are staggered.

For other descriptions of this embodiment, refer to the third embodiment, which is not described herein again.

In the fifth embodiment, referring to fig. 20 to 23, the horizontal air-cooled refrigerator 100d includes a horizontal cabinet 10d and a door 20d.

The horizontal cabinet 10d includes a first end 11d and a second end 13d opposite to each other, a first sidewall 15d and a second sidewall 17d opposite to each other and connecting the first end 11d and the second end 13d, and a bottom 19d far away from the opening of the horizontal cabinet 10 d.

The first end 11d is provided with an air duct cover 16d enclosing the evaporation cavity 12d.

The duct cover 16d includes an upper cover 161d disposed at the cabinet opening of the horizontal cabinet 10d, and a front cover 162d connected to the upper cover 161d and disposed facing the second end 13d, the front cover 162d and the upper cover 161d being disposed perpendicular to each other.

The lower end surface of the door 20d is provided with a door outlet 202c corresponding to the upper cover plate 161c, and the door 20c is provided with a door air duct 203c communicated with the door outlet 202 c.

At least one of the first side wall 15d and the second side wall 17d is provided with a side wall air outlet channel (151 d, 171 d), and when the door body 20d is in a closed state, the side wall air outlet channel (151 d, 171 d) is communicated with the door body air channel 203d.

When the door 20d is in the closed state, a circulation air duct 60d is formed between the lower end surface of the door 20d and the upper cover plate 161d, and the circulation air duct 60d communicates with the door duct 203d.

In the present embodiment, the key to solving these problems is to improve the air circulation at the positions where the frost is most likely to form in the horizontal air-cooled refrigerator 100d, such as the top of the upper cover plate 161d, the opening of the horizontal cabinet 10d, and the like, where air is not circulated, the local temperature is low, and wet air is likely to enter.

Based on this, in this embodiment, the cold air blown out from the evaporation cavity 12d enters the door body air duct 203d through the side wall air outlet ducts (151 d, 171 d), and then enters the circulation air duct 60d through the door body air outlet 202d, that is, at this time, the cold air flows in the gap between the lower end surface of the door body 20d and the upper cover plate 161d, and although the temperature above the upper cover plate 161d is low, the cold air flowing in the gap can be taken away by the cold air even if partial frost is formed; that is, the present embodiment adopts the mode of air supply at the top of the evaporation cavity 12d, and with the help of forced air circulation, the air circulation in the narrow space is greatly improved, and the problem of frosting in the narrow space or the local low temperature position such as the cabinet opening and the top of the upper cover plate 161d is solved.

In this embodiment, the first sidewall 15d is provided with a first sidewall air outlet channel 151d, the second sidewall 17d is provided with a second sidewall air outlet channel 171d, and the front cover plate 162d is provided with a first side air outlet communicated with the first sidewall air outlet channel 151d and a second side air outlet communicated with the second sidewall air outlet channel 171 d.

Taking the first sidewall air outlet channel 151d as an example, the first sidewall air outlet channel 151d has a first sidewall air outlet 1511d opened toward the cavity S of the horizontal cabinet 100d and a first sidewall upper air outlet 1512d opened toward the cabinet opening of the horizontal cabinet 100d, the first sidewall upper air outlet 1512d is disposed near the upper cover plate 161d, and when the door 20d is in the closed state, the first sidewall upper air outlet 1512d is communicated with the door air channel 203d.

That is to say, the air outlet 1512d on the first sidewall air outlet 1511d and the first sidewall all switches on with first sidewall air-out duct 151d each other, and the cold wind that flows through first sidewall air-out duct 151d divides two routes to flow out, and the first part cold wind transmits to the cavity S of horizontal cabinet body 100d through first sidewall air outlet 1511d in, and the second part cold wind upwards transmits and gets into door body wind channel 203d through air outlet 1512d on the first sidewall, then gets into circulation wind channel 60d through door body air outlet 202 d.

It should be noted that the first sidewall air-out channel 151d includes the first sidewall air-out port 1511d and the first sidewall air-out port 1512d only in the area of the upper cover plate 161d, and the first sidewall air-out channel 151d includes only the first sidewall air-out port 1511d in other areas except the area of the upper cover plate 161d, but not limited thereto.

Here, a first engaging portion 15121d is formed at the air outlet 1512d on the first side wall, a second engaging portion 2032d is formed at the door duct 203d, and when the door 20d is in a closed state, the first engaging portion 15121d and the second engaging portion 2032d are engaged with each other.

The first engagement portion 15121d is a convex portion, and the second engagement portion 2032d is a concave portion.

Here, when the first engaging portion 15121d and the second engaging portion 2032d are engaged with each other, not only the cool air in the first sidewall air outlet channel 151d can be transmitted to the door body air channel 203d, but also the first sidewall air outlet channel 151d and the door body air channel 203d can be aligned with each other, and the cool air can be prevented from being lost at the boundary.

The door air duct 203d includes a door air duct body 2033d and a door air inlet portion 2034d located at an end of the door air duct body 2033d, a lower end surface of the door air inlet portion 2034d is lower than a lower end surface of the door air duct body 2033d, and the second matching portion 2032d is located at the door air inlet portion 2034d.

Here, two door body air inlet portions 2034d are disposed at two ends of the door body air duct body 2033d, the two door body air inlet portions 2034d are respectively matched with the first side wall air outlet duct 151d and the second side wall air outlet duct 171d, and the longitudinal section of the door body air duct 203d is substantially in a shape of a "door".

In addition, when the door 20d is in the closed state, the door duct 203d extends from the first side wall 15d to the second side wall 17d.

In this embodiment, a blocking portion 142d is disposed at a position of the first sidewall air-out channel 151d close to the circulation air channel 60d, and the blocking portion 142d is used for blocking the first sidewall air-out channel 151d and the circulation air channel 60d.

The blocking portion 142d is located the one side that the air outlet 1512d is close to cavity S on the first lateral wall, and blocking portion 142d butt upper cover plate 161d, when the door body 20d is in the closed condition, blocking portion 142d butts the one end of upper cover plate 161d and door body air inlet portion 2034d respectively, thereby block that cold wind in the first lateral wall air-out duct 151d directly gets into circulation wind channel 60d, at this moment, cold wind in the first lateral wall air-out duct 151d passes through the air outlet 1512d on the first lateral wall and gets into door body wind channel 203d, then in the door body air outlet 202d gets into circulation wind channel 60d, cold wind this moment is from top to bottom transmitted to circulation wind channel 60d in.

In this embodiment, the front cover plate 162d of the air duct cover plate 16d is provided with a first end air outlet 1121d, and the evaporation cavity 12d is provided with a first end air outlet 112d communicated with the first end air outlet 1121 d.

In summary, the wind blown out from the fan 121d is divided into two parts: the first part is conveyed through the lateral outlet channels on both sides to the first lateral outlet channel 151d and the second lateral outlet channel 171d, and the second part is conveyed through the front first end outlet channel 112d in the direction of the second end 13 d.

Here, the air outlet directions of the first side wall air outlet passage 151d, the second side wall air outlet passage 171d, and the first end portion air outlet passage 112d are staggered.

In the sixth embodiment, referring to fig. 24 to 27, the horizontal type air-cooled refrigerator 100e includes a horizontal type cabinet 10e and a door 20e.

The horizontal cabinet 10e includes a first end 11e and a second end 13e opposite to each other, a first sidewall 15e and a second sidewall 17e opposite to each other and connecting the first end 11e and the second end 13e, and a bottom 19e far away from the opening of the horizontal cabinet 10 e.

The first end 11e is provided with an air duct cover 16e enclosing the evaporation cavity 12e.

The duct cover 16e includes an upper cover 161e disposed at the cabinet opening of the horizontal cabinet 10e, and a front cover 162e connected to the upper cover 161e and disposed facing the second end 13e, wherein the front cover 162e and the upper cover 161e are disposed perpendicular to each other.

At least one of the first side wall 15e and the second side wall 17e is provided with a side wall air outlet duct (151 e, 171 e), and when the door body 20e is in a closed state, a circulation air duct 60e is formed between the lower end face of the door body 20e and the upper cover plate 161e.

The side wall air outlet channels (151 e, 171 e) comprise side wall main air outlet channels (1513 e, 1713 e) and side wall separation air channels (1514 e, 1714 e) which are communicated with each other, the side wall separation air channels (1514 e, 1714 e) are positioned above the side wall main air outlet channels (1513 e, 1713 e), the side wall separation air channels (1514 e, 1714 e) are communicated with the circulation air channel 60e, and the opening directions of the side wall separation air outlets (15141 e, 17141 e) of the side wall separation air channels (1514 e, 1714 e) face the circulation air channel 60e.

In the present embodiment, the key to solving these problems is to improve the air circulation at the positions where frost is most likely to form in the horizontal air-cooled refrigerator 100e, such as the top of the upper cover plate 161e, the opening of the horizontal cabinet 10e, and the like, where air is not circulated, the local temperature is low, and wet air is likely to enter.

Based on this, in this embodiment, the cold air blown out from the evaporation cavity 12e enters the door body air duct 203e through the side wall air outlet ducts (151 e, 171 e), and then enters the circulation air duct 60e through the door body air outlet 202e, that is, at this time, the cold air flows in the gap between the lower end surface of the door body 20e and the upper cover plate 161e, and although the temperature above the upper cover plate 161e is low, the cold air flowing in the gap can be taken away by the cold air even if partial frost is formed; that is, the present embodiment adopts the mode of air supply at the top of the evaporation cavity 12e, and with the help of forced air circulation, the air circulation in the narrow space is greatly improved, and the problem of frosting in the narrow space or the local low temperature position such as the cabinet opening and the top of the upper cover plate 161e is solved.

In this embodiment, the first sidewall 15e has a first sidewall air outlet channel 151e, the second sidewall 17e has a second sidewall air outlet channel 171e, and the front cover plate 162e has a first sidewall air outlet communicated with the first sidewall air outlet channel 151e and a second sidewall air outlet communicated with the second sidewall air outlet channel 171 e.

Taking the first sidewall air-out channel 151e as an example, the first sidewall air-out channel 151d includes a first sidewall main air-out channel 1513e and a first sidewall sub-air-out channel 1514e, an opening direction of the first sidewall main air outlet 15131e of the first sidewall main air-out channel 1513e faces a direction of the cavity S of the horizontal cabinet 10e, an opening direction of the first sidewall sub-air outlet 15141e of the first sidewall sub-air-out channel 1514e faces the circulating air duct 60e, the first sidewall sub-air outlet 15141e is disposed near the upper cover plate 161e, and the first sidewall sub-air outlet 15141e is located above the first sidewall main air outlet 15131 e.

That is to say, the first sidewall main air outlet 15131e and the first sidewall sub-air outlet 15141e are communicated with the first sidewall air outlet channel 151e, the cool air flowing through the first sidewall air outlet channel 151e flows out in two paths, a first portion of cool air is transmitted to the cavity S of the horizontal cabinet 100e through the first sidewall main air outlet 15131e, the portion of cool air is located at the cabinet opening of the horizontal cabinet 10e, a second portion of cool air is horizontally transmitted through the first sidewall sub-air outlet 15141e and enters the ventilation air duct 60e, and the position of the portion of cool air is higher than the position of the first portion of cool air.

It should be noted that the first sidewall air-out channel 151e includes both the first sidewall main air outlet 15131e and the first sidewall sub-air outlet 15141e only in the area of the upper cover plate 161e, and the first sidewall air-out channel 151e includes only the first sidewall main air outlet 15131e in the other area except the upper cover plate 161e, but not limited thereto.

Here, a partition 1515e is provided in the first side wall air-out channel 151e, the partition 1515e partitions the first side wall air-out channel 151e into a first side wall main air-out channel 1513e and a first side wall sub air-out channel 1514e, and a connecting air channel 1516e communicating the first side wall main air-out channel 1513e and the first side wall sub air-out channel 1514e is formed between the partition 1515e and the side wall of the first side wall air-out channel 151 e.

An end of the partition 1515e away from the connecting duct 1516e is connected to the upper cover plate 161e.

In other words, the longitudinal section formed by the connection of the first sidewall main air outlet 1513e, the connecting air outlet 1516e and the first sidewall branch air outlet 1514e is "C" shaped, and the longitudinal section is parallel to the first end 11e.

The circulating air duct 60e includes a transition air duct 601e connected to the first side wall branch air duct 1514e and a main circulating air duct 602e far away from the first side wall branch air duct 1514e, and the height of the transition air duct 601e is greater than that of the main circulating air duct 602 e.

Here, both ends of the main flow passage 602e include two transition air ducts 601e, the two transition air ducts 601e are respectively matched with the first side wall air-dividing duct 1514e and the second side wall air-dividing duct 1714e, and the longitudinal section of the main flow passage 60e is substantially in a shape of a Chinese character 'ao'.

In addition, when the door 20e is in the closed state, the ventilation duct 60e extends from the first side wall 15e to the second side wall 17e.

In this embodiment, the front cover plate 162e of the air duct cover plate 16e is provided with a first end air outlet 1121e, and the evaporation cavity 12e is provided with a first end air outlet 112e communicated with the first end air outlet 1121 e.

In summary, the wind blown out from the fan 121e is divided into two parts: the first part is conveyed via the lateral outlet channels on both sides to the first lateral outlet channel 151e and the second lateral outlet channel 171e, and the second part is conveyed via the front first end outlet channel 112e in the direction of the second end 13 e.

Here, the air outlet directions of the first side wall main air outlet channel 1513e, the second side wall main air outlet channel 1713e and the first end portion air outlet channel 112e are staggered.

In the seventh embodiment, referring to fig. 28 to 31, the horizontal air-cooled refrigerator 100f includes a horizontal cabinet 10f and a door 20f.

The horizontal cabinet 10f includes a first end 11f and a second end 13f opposite to each other, a first sidewall 15f and a second sidewall 17f opposite to each other and connecting the first end 11f and the second end 13f, and a bottom 19f far from the opening of the horizontal cabinet 10 f.

The first end 11f is provided with an air duct cover plate 16f enclosing to form an evaporation cavity 12 f.

The duct cover 16f includes an upper cover 161f disposed at the cabinet opening of the horizontal cabinet 10f, and a front cover 162f coupled to the upper cover 161f and disposed facing the second end 13f, the front cover 162f and the upper cover 161f being disposed perpendicular to each other.

The upper cover plate 161f and the connecting portion 163f of the front cover plate 162f are provided with a flow deflector 70f, a flow guiding air duct 50f is formed between the flow deflector 70f and the connecting portion 163f, the front cover plate 162f is provided with a first end air outlet 1121f, when the door body 20f is in a closed state, a flow air duct 60f is formed between the lower end surface of the door body 20f and the upper cover plate 161f, and the flow guiding air duct 50f is communicated with the first end air outlet 1121f and the flow air duct 60f.

In the present embodiment, the key to solving these problems is to improve the air circulation at the positions where the frost is most likely to form in the horizontal air-cooled refrigerator 100f, such as the top of the upper cover plate 161f, the opening of the horizontal cabinet 10f, and the like, where air is not circulated, the local temperature is low, and wet air is likely to enter.

Based on this, in this embodiment, the cold air blown out from the evaporation cavity 12f enters the air duct 60f through the air duct 50f, that is, the air flows through the gap between the lower end surface of the door 20f and the upper cover plate 161f, and although the temperature above the upper cover plate 161f is low, the cold air flowing through the gap can be taken away by the cold air even if some frost is formed; that is, the present embodiment adopts the top air supply mode of the evaporation cavity 12f, and with the help of forced air circulation, the air circulation in the narrow space is greatly improved, and the problem of frosting in the narrow space or the local low temperature position such as the cabinet opening and the top of the upper cover plate 161f is solved.

In the present embodiment, the flow guiding plate 70f is a U-shaped flow guiding plate, and the U-shaped flow guiding plate is spaced from the connecting portion 163 f.

An overlapping area is formed between the baffle 70f and the first end outlet 1121 f.

The flow deflector 70f includes a first lateral blocking portion 701f, a second lateral blocking portion 702f and a longitudinal blocking portion 703f connecting the first lateral blocking portion 701f and the second lateral blocking portion 702f, which are disposed oppositely, the first lateral blocking portion 701f extends toward the first end portion air outlet 1121f, and the second lateral blocking portion 702f extends toward the air duct 60f.

Specifically, one end of the first lateral blocking portion 701f away from the longitudinal blocking portion 703f is located in the first end air outlet 1121f, one end of the second lateral blocking portion 702f away from the longitudinal blocking portion 703f is located in the ventilation duct 60f, and an overlapping region is formed between the second lateral blocking portion 702f and the upper cover plate 161 f.

It can be seen that the guiding air duct 50f is simultaneously communicated with the first end portion air outlet 1121f and the circulation air duct 60f, so that the cold air flowing out of the first end portion air outlet 1121f can be transmitted to the circulation air duct 60f through the guiding air duct 50f, and the guiding air duct 50f changes the transmission direction of part of the cold air flowing out of the first end portion air outlet 1121 f.

In a direction from the second end 13f toward the first end 11f, the width of the first lateral barrier 701f is smaller than the width of the second lateral barrier 702 f.

The baffle 70f and the duct cover 16f are connected to each other, but not limited thereto.

In the present embodiment, the door lining relief portion 201f is provided on the lower end surface of the door body 20f, and when the door body 20f is in the closed state, the air passage 60f is formed between the lower end surface of the door lining relief portion 201f and the upper cover plate 161 f.

The door lining relief portion 201f is a recess located on the lower end surface of the door body 20f.

In this way, the gap between the lower end surface of the door 10f and the upper cover 161f is increased, that is, the space of the air duct 60f is increased.

That is, in order to create a space for the circulation of the cool air in the ventilation duct 60f, the positions of the door lining of the door 10f corresponding to the top of the upper cover plate 161f are correspondingly set aside, and the smooth flow of the cool air in the ventilation duct 60f is realized by the door lining reserving portion 201f and the like.

In this embodiment, at least one of the first sidewall 15f and the second sidewall 17f is provided with a sidewall outlet (151 f, 171 f), the front cover plate 162f is provided with a side outlet communicated with the sidewall outlet (151 f, 171 f), and the evaporation cavity 12f is provided with a side outlet communicated with the side outlet.

Here, the first sidewall 15f is provided with a first sidewall air outlet channel 151f, the second sidewall 17f is provided with a second sidewall air outlet channel 171f, and the front cover 162f is provided with a first sidewall air outlet communicating with the first sidewall air outlet channel 151f and a second sidewall air outlet communicating with the second sidewall air outlet channel 171 f.

In summary, the wind blown out from the fan 121f is divided into two parts: the first part is conveyed to the first side wall outlet 151f and the second side wall outlet 171f via the side outlet on both sides, and the second part is conveyed toward the second end 13f and the guide duct 50f via the front first end outlet 112 f.

Here, the air outlet directions of the first side wall outlet duct 151f, the second side wall outlet duct 171f, and the first end outlet duct 112f are staggered.

For other descriptions of this embodiment, reference may be made to the third embodiment, which is not described herein again.

It should be noted that the contents of the seven embodiments described above can be combined with each other to form other embodiments, for example, the air return system of the first embodiment can be matched with the air supply system of the third embodiment, and so on.

It should be understood that although the present description refers to embodiments, not every embodiment contains only a single technical solution, and such description is for clarity only, and those skilled in the art should make the description as a whole, and the technical solutions in the embodiments can also be combined appropriately to form other embodiments understood by those skilled in the art.

The above-listed detailed description is only a specific description of a possible embodiment of the present invention, and they are not intended to limit the scope of the present invention, and equivalent embodiments or modifications made without departing from the technical spirit of the present invention should be included in the scope of the present invention.

Claims

1. A horizontal air-cooled refrigerator is characterized by comprising a horizontal cabinet body and a door body, wherein the horizontal cabinet body comprises a first end part and a second end part which are oppositely arranged, and a first side wall and a second side wall which are connected with the first end part and the second end part and are oppositely arranged, at least one of the first side wall and the second side wall is provided with a side wall air outlet channel, the first end part is provided with an air channel cover plate which is arranged to surround and form an evaporation cavity, the air channel cover plate comprises an upper cover plate arranged at a cabinet opening of the horizontal cabinet body, when the door body is in a closed state, a circulation air channel is formed between the lower end surface of the door body and the upper cover plate, the side wall air outlet channel comprises a side wall main air outlet channel and a side wall branch air channel which are mutually communicated, the side wall branch air channel is positioned above the side wall main air outlet channel, and the side wall branch air channel is communicated with the air channel and the opening direction of the side wall branch air outlet channel faces the circulation air channel;

the opening direction of the main air outlet on the side wall of the main air outlet channel on the side wall faces the cavity direction of the horizontal cabinet body;

the side wall branch air outlet is close to the upper cover plate area and located above the side wall main air outlet.

2. The horizontal air-cooled refrigerator according to claim 1, wherein a partition is provided in the sidewall air-out channel, the partition separates the sidewall air-out channel to form the main sidewall air-out channel and the sidewall separation air channel, and a connection air channel communicating the main sidewall air-out channel and the sidewall separation air channel is formed between the partition and the sidewall of the sidewall air-out channel.

3. The horizontal air-cooled refrigerator according to claim 2, wherein one end of the partition part, which is far away from the connecting air duct, is connected to the upper cover plate.

4. The horizontal air-cooled refrigerator according to claim 2, wherein the longitudinal section formed by connecting the main air outlet channel of the side wall, the connecting air channel and the side wall separating air channels is in a C shape, and the longitudinal section is parallel to the first end.

5. The horizontal air-cooled refrigerator according to claim 1, wherein the circulation air duct comprises a transition air duct communicated with the side wall branch air duct and a main circulation branch duct far away from the side wall branch air duct, and the height of the transition air duct is greater than that of the main circulation branch duct.

6. The horizontal air-cooled refrigerator according to claim 1, wherein the ventilation duct extends from the first side wall to the second side wall when the door is in the closed state.

7. The horizontal air-cooled refrigerator according to claim 1, wherein the air duct cover plate comprises a front cover plate connected to the upper cover plate and facing the second end, and the front cover plate is provided with a side air outlet communicated with the main air outlet duct of the side wall.

8. The horizontal air-cooled refrigerator according to claim 7, wherein the first side wall is provided with a first side wall main air outlet channel, the second side wall is provided with a second side wall main air outlet channel, and the front cover plate is provided with a first side air outlet communicated with the first side wall main air outlet channel and a second side air outlet communicated with the second side wall main air outlet channel.

9. The horizontal air-cooled refrigerator according to claim 8, wherein the front cover plate is provided with a first end air outlet, the evaporation cavity is provided with a first end air outlet channel communicated with the first end air outlet, and the air outlet directions of the first side wall main air outlet channel, the second side wall main air outlet channel and the first end air outlet channel are staggered.