CN113154752A

CN113154752A - Air-cooled horizontal refrigerator

Info

Publication number: CN113154752A
Application number: CN202110388537.XA
Authority: CN
Inventors: 李大伟; 张绍红; 成俊亮; 丁剑波; 蒋彬; 彭灿
Original assignee: Qingdao Haier Special Refrigerator Co Ltd
Current assignee: Qingdao Haier Special Refrigerator Co Ltd
Priority date: 2018-12-24
Filing date: 2018-12-24
Publication date: 2021-07-23
Anticipated expiration: 2038-12-24
Also published as: CN116481227A; CN116857875A; CN111351287B; CN111351287A; CN113154752B; CN116592554A

Abstract

The invention relates to an air-cooled horizontal refrigerator, which comprises: the refrigerator comprises a box body and a refrigerator body, wherein the box body is provided with a box shell and a liner embedded in a containing space of the box shell, a containing cavity is formed inside the liner, and the liner is provided with a bottom plate and a liner wall extending upwards from the bottom plate; the door body is arranged above the box body; the air duct plate is positioned in the accommodating cavity and connected with the bottom plate, and an evaporator cavity is formed between the air duct plate and the inner container; and the air channel comprises an air return channel for returning air to the evaporator cavity, an air return inlet for communicating the accommodating cavity with the air return channel, an air supply channel for introducing air from the evaporator cavity and a plurality of air outlets for communicating the air supply channel with the accommodating cavity, the air outlets comprise a first air outlet and a second air outlet, the first air outlet is arranged close to the upper edge of the inner container wall in the vertical direction, the second air outlet is lower than the first air outlet in the vertical direction, and the air return inlet is lower than the first air outlet in the vertical direction.

Description

Air-cooled horizontal refrigerator

Technical Field

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

Background

The horizontal refrigerator is a refrigeration device which keeps constant low temperature, is an electric appliance which is common in life and is used for preserving food or other articles at low temperature, and is widely applied to the fields of commerce and household.

At present, the refrigeration principle of horizontal refrigerators is generally divided into direct-cooling horizontal refrigerators and air-cooling horizontal refrigerators, wherein the direct-cooling horizontal refrigerators are prone to frost in the refrigerator during use, and the air-cooling horizontal refrigerators are favored by users due to the fact that the air-cooling horizontal refrigerators have the advantage of no frost. In the horizontal freezer of forced air cooling, blow in the freezer inside through the refrigerated air to the article refrigeration of depositing in the freezer, however, because the refrigerated air proportion is great, easily gather at the freezer bottom, like this, make the freezer in the bottom temperature low, the top temperature is high, and temperature distribution is inhomogeneous, and then the influence deposits the quality of article.

In addition, the arrangement mode of the well evaporimeter of current air-cooled horizontal freezer also has great influence to refrigeration effect, user experience etc. for example, the position that the evaporimeter set up is too close to the glass door body of air-cooled horizontal freezer, can occupy more space on the one hand, and the wind channel top at on the other hand evaporimeter place is too near apart from the glass door body, and the surface of the glass door body is the condensation easily, and the wind channel top is easily frosted.

Horizontal freezer is longer on width direction or horizontal direction, often sets up in the position of being close to horizontal freezer's left surface and right flank behind the supply-air outlet and the return air in current wind channel for the air supply distance extension is difficult to supply air to the box opposite, if air outlet and return air inlet set up at same side (left surface or right flank, then the case chamber mid portion amount of wind is less, causes the incasement temperature inhomogeneous.

In view of this, the invention provides a horizontal air-cooled refrigerator, which overcomes the problems in the refrigeration of the existing horizontal refrigerator.

Disclosure of Invention

The invention aims to provide a horizontal refrigerator, which has more uniform temperature distribution by a wind circulation mode in an inner container.

The invention provides an air-cooled horizontal refrigerator, which comprises:

the refrigerator comprises a box body and a refrigerator body, wherein the box body is provided with a box shell and a liner embedded in a containing space of the box shell, a containing cavity is formed inside the liner, and the liner is provided with a bottom plate and a liner wall extending upwards from the bottom plate;

the door body is arranged above the box body;

the air duct plate is positioned in the accommodating cavity and connected with the bottom plate, and an evaporator cavity is formed between the air duct plate and the inner container; and the number of the first and second groups,

the air duct comprises an air return duct for returning air to the evaporator cavity, an air return opening for communicating the accommodating cavity with the air return duct, an air supply duct for introducing air from the evaporator cavity, and a plurality of air outlets for communicating the air supply duct with the accommodating cavity, the plurality of air outlets comprise a first air outlet and a second air outlet, the first air outlet is arranged close to the upper edge of the inner container wall in the vertical direction, the second air outlet is lower than the first air outlet in the vertical direction, and the air return opening is lower than the first air outlet in the vertical direction.

As a further improvement of an embodiment of the present invention, the inner container wall includes a first inner container wall and a second inner container wall respectively provided on a pair of long sides of the bottom plate, the plurality of air outlets are provided on the first inner container wall, and the air return opening is provided on the second inner container wall.

As a further improvement of the embodiment of the present invention, the first air outlet is disposed near an upper edge of the first inner container wall, and includes a plurality of air outlet openings arranged along a transverse direction of the first inner container wall;

the second air outlet is positioned in the middle of the first inner container wall and comprises a plurality of air outlet openings which are arranged along the transverse direction of the first inner container wall; the air outlet openings of the second air outlet are less than the air outlet openings of the first air outlet.

As a further improvement of an embodiment of the present invention, the plurality of air outlets further include a third air outlet disposed at a lower edge of the first liner wall; and the air outlet opening of the third air outlet is less than that of the second air outlet.

As a further improvement of an embodiment of the present invention, the inner container walls include a first inner container wall and a second inner container wall respectively provided on a pair of long sides of the bottom plate, and a third inner container wall and a fourth inner container wall respectively provided on a pair of short sides of the bottom plate;

the first air outlet is arranged on the first inner container wall, and the second air outlet is arranged on the second inner container wall.

As a further improvement of the embodiment of the present invention, the air duct plate includes a first cover plate extending upward from the bottom plate, the first cover plate is parallel to the third inner container wall, and the air return opening is disposed on the first cover plate.

the second air outlet is positioned in the middle of the second inner container wall or on the upper side of the middle of the second inner container wall and comprises a plurality of air outlet openings which are transversely arranged along the second inner container wall.

As a further improvement of an embodiment of the present invention, air outlet cover plates are respectively disposed on air outlet sides of the first air outlet and the second air outlet, and the air outlet cover plates have air outlet micro holes, and the air outlet micro holes penetrate through the air outlet cover plates.

As a further improvement of an embodiment of the present invention, the air outlet micro-holes extend obliquely upward from the outer side surface of the air outlet cover plate to the inner side surface of the air outlet cover plate, and the inner side surface of the air outlet cover plate is opposite to the outer side surface of the air outlet cover plate and is away from the accommodating cavity.

As a further improvement of the embodiment of the present invention, the inner container walls include a first inner container wall and a second inner container wall which are oppositely arranged in the longitudinal direction, and a third inner container wall and a fourth inner container wall which are oppositely arranged in the transverse direction; the lower edge of the third inner container wall is higher than the lower edge of the fourth inner container wall;

the bottom of the inner container is also provided with a concave part which is bent upwards from one transverse edge of the bottom plate and is connected to the lower edge of the third inner container wall;

the evaporator chamber is located between the recess and the fourth inner bladder wall.

Compared with the prior art, the horizontal refrigerator provided by the invention has the advantages that through the design of the air outlet and the air return inlet, the air can be supplied to the upper part and the lower part of the refrigerator, and the air returns from the bottom, so that the temperature balance in the inner container is effectively maintained.

The invention is described in detail below with reference to the drawings and specific examples, but the invention is not limited thereto.

Drawings

Fig. 1 is a schematic view of a part of a horizontal refrigerator according to a first embodiment of the present invention.

Fig. 2 is a schematic view of the horizontal freezer shown in fig. 1 with the inner container and the housing exploded.

Fig. 3A is an exploded view of the chest freezer shown in fig. 1.

Fig. 3B is an enlarged schematic view of the region a in fig. 3A.

Fig. 4A to 4C are schematic cross-sectional views of the horizontal freezer shown in fig. 1 at different viewing angles.

Fig. 5A to 5C are schematic cross-sectional views of a horizontal freezer in a second embodiment of the invention at different viewing angles.

Fig. 6A to 6C are schematic cross-sectional views of a horizontal refrigerator according to a third embodiment of the present invention at different viewing angles.

Fig. 7A is a schematic top view of a horizontal refrigerator according to a fourth embodiment of the present invention.

Fig. 7B and 7C are schematic cross-sectional views of a horizontal freezer in a fourth embodiment of the invention at different viewing angles.

Fig. 7D and 7E are schematic views of an air duct plate of a horizontal refrigerator according to a fourth embodiment of the present invention.

Fig. 7F is a schematic sectional view of an evaporator of a horizontal refrigerator according to a fourth embodiment of the present invention.

Fig. 8A is a schematic top view of a horizontal refrigerator according to a fifth embodiment of the present invention.

Fig. 8B to 8D are schematic cross-sectional views of a horizontal refrigerator according to a fifth embodiment of the present invention at different viewing angles.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to embodiments and accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Fig. 1 is a schematic view of a part of a horizontal refrigerator according to a first embodiment of the present invention; fig. 2 is a schematic view of the horizontal freezer shown in fig. 1 with the inner container and the housing exploded; fig. 3A is an exploded view of the chest freezer of fig. 1; FIG. 3B is an enlarged schematic view of the area a in FIG. 3A; fig. 4A to 4C are schematic cross-sectional views of the horizontal freezer shown in fig. 1 at different viewing angles.

As shown in fig. 1 to 4C, a horizontal refrigerator 100 according to a first embodiment of the present invention, particularly an air-cooled horizontal refrigerator, includes a box body and a door (not shown), wherein the door is disposed above the box body, the door includes transparent glass, for example, and a user can observe the articles stored in the box body through the transparent glass; the box body comprises a box shell 10, a foaming layer 90 and an inner container 20, wherein the foaming layer 90 is located between the box shell 10 and the inner container 20, and the foaming layer 90 is made of a heat-insulating material.

The inner container 20 is embedded in the accommodating space 11 of the cabinet 10, the inner container 20 has an accommodating cavity 21, the accommodating cavity 21 is used for storing articles to be frozen or refrigerated, the bottom of the inner container 20 is recessed towards the accommodating cavity 21 to form a recess 22, the recess 22 has a first side wall 221, one end of the first side wall 221 is connected to the bottom plate 25 of the inner container 20, or the first side wall 221 extends from the bottom plate 25 towards the accommodating cavity 21; the air duct plate 30 is disposed adjacent to the first side wall 221, and a space between the air duct plate 30 and the first side wall 221 constitutes an evaporator chamber in which the evaporator 50 is disposed; wherein the air duct plate 30 is located in the accommodating chamber 21.

The recess 22 further comprises a second sidewall 222, the second sidewall 222 and the first sidewall 221 are perpendicular to each other, that is, the first sidewall 221 and the second sidewall 222 form a right-angle structure, preferably, the first sidewall 221 is perpendicular to the bottom plate 25, for example, one end of the first sidewall 221 is perpendicular to the edge of the bottom plate 25; the second sidewall 222 is perpendicular to the third inner container wall 26 of the inner container 20, and one end of the second sidewall 222 is vertically connected to the lower edge of the third inner container wall 26. In this embodiment, the concave portion 22 can be regarded as a right-angled step structure formed by bending the bottom plate 25 toward the accommodating cavity 21, but not limited thereto. In other embodiments of the present invention, the first sidewall 221 of the concave portion 22 may be bent toward the accommodating chamber 21 by the bottom plate 25, the second sidewall 222 may be bent toward the accommodating chamber by the third liner wall 26, and the first sidewall 221 and the second sidewall 222 are connected to each other at the intersection in the accommodating chamber 21

The wind tunnel plate 30 includes a first cover plate 31 and a second cover plate 32, the first cover plate 31 and the second cover plate 32 being, for example, perpendicular to each other, the first cover plate 31 being parallel and opposite to the first sidewall 221 of the recess 22, and the top surface of the second cover plate 32 and the top surface of the second sidewall 222 of the recess 22 being flush with each other. The space between the first sidewall 221, the first cover plate 31 and the second cover plate 32 is an evaporator chamber, and the evaporator 50 is disposed in the evaporator chamber. The bottom plate 25 of the inner container 20 is provided with a mounting groove (not shown) corresponding to an area of the evaporator chamber so that the evaporator 50 can be positioned in the mounting groove. Of course, for the purpose of convenient installation, the evaporator 50 and the fan unit 60 can be assembled in advance to a mounting plate (not shown) fixed in the mounting groove by screwing or the like, and the fan unit 60 is located between the evaporator chamber and the first inner container wall 23 of the inner container 20. The fan unit 60 may also include a housing assembly that fills the gap between the evaporator chamber and the first inner container wall 23.

In this embodiment, the air duct plate 30 is provided with a fixing hole, and the fixing member passes through the fixing hole to fixedly couple the air duct plate 30 to the inner container 20, but not limited thereto. In other embodiments of the present invention, the air duct plate 30 may be integrally formed with the concave portion 22 of the inner container 20, that is, the air duct plate 30 may be formed by extending the second sidewall 222 of the concave portion 22 toward the accommodating cavity 21 and then continuously bending toward the bottom plate 25. Preferably, the material of the air duct plate 30 may be the same as the material of the inner container 20.

The inner container 20 includes a first inner container wall 23 and a second inner container wall 24 which are oppositely arranged, and the first inner container wall 23 and the second inner container wall 24 respectively extend upwards from two opposite side edges of the bottom plate 25; the third inner container wall 26 vertically connects the first inner container wall 23 and the second inner container wall 24, respectively. The liner 20 further includes a fourth liner wall 27, the fourth liner wall 27 is opposite to the third liner wall 26, the fourth liner wall 27 extends upward from the other side edge of the bottom plate 25 and is respectively and vertically connected to the first liner wall 23 and the second liner wall 24, wherein a space surrounded by the first sidewall 221 and the second sidewall 222 of the first liner wall 23, the second liner wall 24, the third liner wall 26, the fourth liner wall 27, the bottom plate 25 and the recess 22 is the accommodating cavity 21 of the liner 20.

A plurality of groups of air outlets are formed in the first inner container wall 23, a plurality of groups of air return openings are formed in the second inner container wall 24, the plurality of groups of air outlets are used for sending air processed by the evaporator 50 to the accommodating cavity 21 of the inner container 20, and the plurality of groups of air return openings are used for returning air in the accommodating cavity 21 of the inner container 20 to the cavity of the evaporator and are processed by the evaporator 50 again; the above-described supply and return processes are considered as the wind circulation of the chest freezer 100.

Referring to fig. 3A, the plurality of air outlets on the first inner container wall 23 include a first air outlet 231, a second air outlet 232, a third air outlet 233, and a fourth air outlet 234, wherein the first air outlet 231 is disposed near an upper edge of the first inner container wall 23 and includes a plurality of air outlet openings, and the plurality of air outlet openings are arranged along a transverse direction of the first inner container wall 23; the second air outlet 232 is located in the middle of the first liner wall 23 and includes a plurality of air outlet openings, the plurality of air outlet openings are arranged along the transverse direction of the first liner wall 23, and the middle of the first liner wall 23 is located between the upper edge of the first liner wall 23 and the lower edge of the first liner wall 23; the third air outlet 233 is disposed at the lower edge of the first liner wall 23, and the lower edge of the first liner wall 23 is close to the bottom plate 25; the fourth air outlet 234 is disposed at one side of the first liner wall 23 close to the third liner wall 26, and the fourth air outlet 234 is located at the upper side of the second sidewall 222 of the concave portion 22; the plurality of air outlet openings respectively penetrate through the first inner container wall 23. In this embodiment, the number of the air outlet openings of the second air outlet 232 is smaller than that of the first air outlet 231, and the number of the air outlet openings of the third air outlet 233 and the fourth air outlet 234 is 1, but not limited thereto.

The multiple groups of air return openings include a first air return opening 241 and a second air return opening 242, the first air return opening 241 is arranged in the middle of the second liner wall 24 and includes multiple air return opening holes, the multiple air return opening holes are transversely arranged along the second liner wall 24, and the middle of the second liner wall 24 is located between the upper edge of the second liner wall 24 and the lower edge of the second liner wall 24; the second air return opening 242 is disposed at the lower edge of the second liner wall 24 and includes a plurality of air return openings, the plurality of air return openings are arranged transversely along the second liner wall 24, and the lower edge of the second liner wall 24 is close to the bottom plate 25; wherein the plurality of return air openings each extend through the second inner container wall 24. In this embodiment, due to the existence of the concave portion 22, the number of the return air openings in the second air outlet 242 is smaller than that of the first air outlet 241.

The first inner container wall 23 and the second inner container wall 24 are both inner container walls extending in the width direction or in the lateral direction of the horizontal refrigerator 100, and the third inner container wall 26 and the fourth inner container wall 27 are both inner container walls extending in the longitudinal direction or in the longitudinal direction of the horizontal refrigerator 100; in other words, the bottom plate 25 includes a pair of long sides and a pair of short sides, the first inner container wall 23 and the second inner container wall 24 are disposed on the pair of long sides, respectively, and the third inner container wall 26 and the fourth inner container wall 27 are disposed on the pair of short sides, respectively. Since the bottom plate 25 of the inner container 20 is bent to form the step portion 22, the maximum lengths of the first inner container wall 23 and the second inner container wall 24 are respectively greater than the lengths of the third inner container wall 26 and the fourth inner container wall 27. The air outlets and the air return inlets are formed in the two side walls of the horizontal refrigerator 100, which are opposite to each other in the transverse direction, so that the air supply distance is shortened, and the temperature balance of each area in the inner container 20 is facilitated.

In addition, a food basket (not shown) is generally disposed in the horizontal refrigerator 100, and the food basket is disposed at an upper layer of the accommodating cavity 21, preferably, the upper first air outlet 231 of the first inner container wall 23 is higher than an upper edge of the food basket, and the middle second air outlet 232 of the first inner container wall 23 is parallel to or slightly lower than a lower edge of the food basket. In order to prevent the basket from blocking the air circulation at the return air, the first return air opening 241 is located at the middle of the second liner wall 24 and is lower than the lower edge of the basket. In order to take account of the temperature of each region in the accommodating chamber 21, the third air outlet 233 is additionally arranged at the corner of the lower edge of the first liner wall 23 close to the fourth liner wall, and the fourth air outlet 234 is additionally arranged at the second side wall 222 of the first liner wall 23 close to the concave portion 22, so that the region with an air outlet dead angle in the accommodating chamber 21 is avoided.

Further, an air outlet channel connecting hole 235 is further formed in the first inner container wall 23, an air return channel connecting hole 243 is formed in the second inner container wall 24, the air outlet channel connecting hole 235 and the air return channel connecting hole 243 are respectively communicated with the evaporator cavity, wherein the fan unit 60 is close to the air outlet channel connecting hole 235, and the fan unit 60 is a centrifugal fan or an axial flow fan, for example.

An air outlet channel 85 is arranged between the first inner container wall 23 and the box shell 10, a return air channel 86 is arranged between the second inner container wall 24 and the box shell 10, wherein the air outlet channel 85 is respectively communicated with a plurality of groups of air outlets and air outlet channel connecting holes 235, the return air channel 86 is respectively communicated with a plurality of groups of return air inlets and return air channel connecting holes 243, an air channel between the air outlet channel 85 and the first inner container wall 23 is an air outlet channel, and an air channel between the return air channel 86 and the second inner container wall 24 is a return air channel. Air sent out by the fan unit 60 enters the air outlet channel from the air outlet channel connecting hole 235 and then enters the accommodating cavity 21 of the inner container 20 through the plurality of air outlets, the air in the accommodating cavity 21 of the inner container 20 is sucked by the fan unit 60 from the air return port, passes through the air return channel and then enters the evaporator cavity through the air return channel connecting hole 243, and the sucked air is filtered by the evaporator 50 to remove water vapor. In this embodiment, the air outlet duct slot 85 is fixed to the side of the first inner container wall 23 facing the box casing 10, the air return duct slot 86 is fixed to the side of the second inner container wall 24 facing the box casing 10, and the foaming layer 90 is filled between the inner container 20 and the box casing 10, so that the air outlet duct slot 85 and the air return duct slot 86 are present in the foaming layer.

The accommodating portion 21 of the inner container 20 is further provided with a plurality of groups of air outlet cover plates, the air outlet cover plates correspond to the air outlets in a one-to-one manner, the air outlet cover plates are respectively provided with air outlet microstructures for adjusting air output and air supply direction of the air outlets, the air outlet microstructures correspond to the air outlet holes in a one-to-one manner, and the air outlet microstructures include but are not limited to holes, slots and the like which penetrate through the air outlet cover plates. The air outlet cover plate can be coupled to the first inner container wall 23 by welding, fastening, or screwing, but not limited thereto. In other embodiments of the present invention, the plurality of sets of air outlet cover plates may be integrally formed with the inner container wall, and the air outlet cover plates (or the inner container wall) are hollowed out at positions corresponding to the plurality of sets of air outlets to form the air outlet micro-structures, so as to adjust the air volume and the air direction of the air outlets.

In this embodiment, the plurality of groups of air outlet cover plates include a first air outlet cover plate 81, a second air outlet cover plate 82, a third air outlet cover plate 87 and a fourth air outlet cover plate 88, the first air outlet cover plate 81 is adapted to the first air outlet 231, the second air outlet cover plate 82 is adapted to the second air outlet 232, the third air outlet cover plate 87 is adapted to the third air outlet 233, and the fourth air outlet cover plate 88 is adapted to the fourth air outlet 234. The air outlet microstructure will be described in detail below by taking the first air outlet cover plate 81 as an example.

The air outlet micro structure on the first air outlet cover plate 81 is, for example, a plurality of air outlet micro holes 811, the air outlet micro holes 811 penetrate through the upper air outlet cover plate 81, and the air outlet micro holes 811 penetrate through the air outlet cover plate 81 in an inclined manner, that is, along the thickness direction of the air outlet cover plate 81, the air outlet micro holes 811 extend upward from the outer side surface of the air outlet cover plate 81 toward the inner side surface of the air outlet cover plate 81 in an inclined manner and penetrate through the upper air duct plate 81, so as to achieve downward tilting air supply of the upper air. Wherein the outer surface faces away from the inner surface, the outer surface faces the second liner wall 24, and the inner surface faces the first liner wall 23. The air outlet hole 811 may be a hole having a hexagonal shape, a circular shape, an elliptical shape, a quadrangular shape, or the like. Of course, the air outlet micro-holes 811 for realizing downward inclination air supply may also be disposed in the second air outlet cover plate 82, the third air outlet cover plate 87 and the fourth air outlet cover plate 88. The downward-inclined air supply mode is favorable for conveying air flow to the bottom of the refrigerator, and the air flow at the bottom of the refrigerator is convenient to circulate.

In order to realize downward-inclined air supply, in other embodiments of the present invention, an air outlet grille may be disposed at the air outlet of the air outlet cover plates, and a grille blade of the air outlet grille is inclined toward the bottom of the inner container. In addition, the air outlet grille and the air outlet micropores can be arranged on the air outlet cover plate simultaneously.

The second inner container wall 24 of the inner container 20 is further provided with a plurality of sets of air return cover plates (not shown), the air return cover plates correspond to the air return inlets in a one-to-one manner, the air return cover plates are provided with air return micro-structures for adjusting the air return amount and the air return direction, and the air return micro-structures include, but are not limited to, holes, grooves and the like penetrating through the air return cover plates. The air return cover plate can be fastened to the second inner container wall 24 by a snap or a screw, but not limited thereto. In other embodiments of the present invention, multiple sets of air return cover plates may be integrally formed with the inner container wall, and the air return cover plates (or the inner container wall) are hollowed out at corresponding air return positions to form an air return microstructure, so as to adjust the air volume and the air direction of the air outlet.

In this embodiment, the multiple sets of air return cover plates include a first air return cover plate 83 and a second air return cover plate 84, the first air return cover plate 83 is adapted to the second air return opening 241, and the first air return cover plate 84 is adapted to the second air return opening 242. The first air return cover plate 83 and the second air return cover plate 84 may be respectively provided with an air return microstructure, the air return microstructure is similar to the air outlet microstructure, and the description of the air return microstructure can refer to the description of the air outlet microstructure, which is not repeated. Of course, the holes, the shapes of the slots, the inclination directions and the like of the return air microstructures can be changed according to actual requirements to obtain the optimal return air result.

As can be seen from fig. 3A to 4A, in the horizontal refrigerator 100, the evaporator 50 is located in the middle of the evaporator cavity, the evaporator 50 includes a first end 51 and a second end 52, the first end 51 is close to the second inner container wall 24, the second end 52 is close to the fan set 60, and the fan set 60 is close to the first inner container wall 23, wherein the first end 51 is lower than the second end 52, that is, the second end 52 of the evaporator 50 close to the fan set 60 is higher than the first end 51 of the evaporator 50 close to the second inner container wall 24, so that the defrosting water in the evaporator 50 flows from the second end 52 toward the first end 51, which facilitates the discharging of the defrosting water, and simultaneously avoids the defrosting water being sucked and frozen when the fan set 60 rotates, which causes an abnormality.

The water receiving box 70 is arranged below the evaporator 50, the water receiving box 70 is used for receiving the defrosting water, the water outlet 71 of the water receiving box 70 is arranged close to the first end part 51, the water outlet 71 is arranged at one side of the water receiving box 70 far away from the fan set 60, and therefore the phenomenon that the fan set 60 cannot work normally due to the fact that the fan set 60 is frozen by water vapor due to the fact that the fan set 60 sucks air mixed with the defrosting water or other water vapor directly into the fan set 60 can be avoided.

Further, a top insulating layer 41 and a bottom insulating layer 42 are respectively arranged on the upper side and the lower side of the evaporator 50, the top insulating layer 41 is arranged between the air duct plate 30 and the evaporator 50, and the shape of the top insulating layer 41 is similar to that of the air duct plate 30; the bottom insulating layer 42 is arranged between the water receiving box 70 and the bottom plate 25; wherein the top insulation 41 and the bottom insulation 42 together support the evaporator 50. In this embodiment, the top insulating layer 41 and the bottom insulating layer 42 are both of a slope structure, and the slope structure gradually extends obliquely upward from one end close to the second inner container wall 24 to the other end close to the first inner container wall 23; the evaporator 50 is supported in the above-described slope structure to achieve that the first end 51 of the evaporator 50 is lower than the second end 52. The first end 51 of the evaporator 50 is lower than the second end 52 by the slope structure of the top insulation layer 41 and the bottom insulation layer 42, which is a preferred embodiment, but not limited thereto. In other embodiments of the present invention, a support member may be disposed on the bottom plate of the inner container, and the support member may make the second end of the evaporator close to the fan unit higher than the first end of the evaporator far from the fan unit.

In the horizontal freezer 100, the evaporator 50 is in a "horizontal arrangement," which means that when air flows through the evaporator 50, the air flows in a direction parallel to the fins in the evaporator 50. Evaporator 50 also includes a coil disposed through the plurality of fins. Furthermore, heating pipes (not shown) are embedded in the plurality of fins of the evaporator 50, and provide heat to defrost frost condensed in the evaporator 50.

The air circulation in the horizontal refrigerator 100 comprises air supply and air return, the fan unit 60 starts to suck air at one side of the evaporator 50, and the air enters the air outlet channel through the air outlet channel connecting hole 235, and then is sent out through the air outlet microstructures of the multiple groups of air outlets and the multiple groups of air outlet cover plates to enter the accommodating cavity 21 of the inner container 20; under the action of the suction force generated by the fan unit 60, the air in the inner container 20 flows from the return air microstructure of the return air cover plate through the return air opening and the return air channel, then returns to the evaporator chamber through the return air channel connecting hole 243, and flows from the first end 51 to the second end 52 of the evaporator 50, so that the return air is treated and then sucked by the fan 60 again and sent out. In this embodiment, when the horizontal refrigerator 100 is in use, the first inner container wall 23 is located at a side far from the user, that is, the first inner container wall 23 can be regarded as a back side of the horizontal refrigerator 100, and the second inner container wall 24 is located at a side close to the user, that is, the second inner container wall 24 can be regarded as a front side of the horizontal refrigerator 100, so that the air circulation can be regarded as a circulation of back-side air-out and front-side air-return.

In the horizontal refrigerator 100 according to the first embodiment of the present invention, the evaporator chamber is provided at one side of the recess 22 (or the stepped portion), and the top surface of the second cover plate 32 of the air duct plate 30 constituting the evaporator chamber is flush with the top surface of the second sidewall 222 of the recess 22; the inner container wall opposite to the inner container 20 is respectively provided with a plurality of air outlets and air return inlets, so that the distance between air outlet and air return is shortened, and the temperature balance in the inner container can be effectively maintained; the air outlet channel groove 85 and the air return channel groove 86 are arranged in the foaming layer 90 between the inner container 20 and the box shell 10, so that the storage space in the accommodating cavity 21 of the inner container 20 is not occupied, and the space utilization rate is improved; in addition, the evaporator 50 is horizontally arranged in the evaporator cavity, and the second end 52 of the evaporator 50 close to the fan set 60 is higher than the first end 51, so that the defrosting water is conveniently discharged out of the evaporator cavity, and meanwhile, the phenomenon that the fan set 60 sucks the defrosting water to cause abnormality is avoided.

Fig. 5A to 5C are schematic cross-sectional views of a horizontal freezer in a second embodiment of the invention at different viewing angles. In fig. 5A to 5C, elements with the same reference numerals as those in fig. 1 to 4C have similar functions, and are not repeated herein.

The horizontal refrigerator 200 in the second embodiment is different from the horizontal refrigerator 100 in the first embodiment in that 1) the air duct plate 210 in the horizontal refrigerator 200 is different in structure; 2) the setting positions of the air return openings 205 are different;

3) the air circulation caused by the different positions of the air outlet and the air return inlet is different.

Specifically, the bottom of the inner container 20 of the horizontal refrigerator 200 is recessed into the accommodating cavity 21 to form a concave portion 22 (as shown in fig. 2), the concave portion 22 has a first sidewall 221 and a second sidewall 222 perpendicular to each other, the first sidewall 221 is perpendicularly connected to the bottom plate 25 of the inner container 20, the air duct plate 210 is disposed close to the first sidewall 221, the air duct plate 210 is disposed in the accommodating cavity 21, a space between the air duct plate 210 and the first sidewall 221 forms an evaporator chamber, and the evaporator 50 and the fan unit 60 are disposed in the evaporator chamber.

The air duct plate 210 includes a first cover plate 211, a second cover plate 212 and a third cover plate 213 connected in sequence, the second cover plate 212 is located between the first cover plate 211 and the second cover plate 213, wherein the first cover plate 211 is parallel to and opposite to the first sidewall 221, the first cover plate 211 is provided with an air return opening 205, preferably, the air return opening 205 is located at a lower edge of the first cover plate 211, and a lower edge of the first cover plate 211 is close to the bottom plate 25.

In this embodiment, the height of the first cover 211 is smaller than the height of the first sidewall 221. The two opposite ends of the second cover plate 212 are respectively connected to the first cover plate 211 and the third cover plate 213, wherein the top surface of the third cover plate 213 is flush with the top surface of the second sidewall 222 of the recess 22, the second cover plate 212 is a bent structure, one end of the bent structure is connected to the first cover plate 211, the other end of the bent structure is connected to the third cover plate 213, and the bent portion 214 of the bent structure extends toward the inside of the evaporator chamber. In this embodiment, the bending portion 214 bends toward the connection between the first sidewall 221 and the second sidewall 222.

The bend 214 in the air duct plate 210 extending towards the evaporator chamber substantially reduces the space occupied by the evaporator chamber, i.e. the space above the evaporator chamber is compressed, and the evaporator 50 in the evaporator chamber whose upper space is compressed may be a flat evaporator to accommodate the above-mentioned space variation. Due to the arrangement of the second cover plate 212 and the bent portion 214 thereof, the space utilization rate of the accommodating cavity 21 of the inner container 20 of the horizontal refrigerator 200 can be significantly improved.

The inner container 20 of the horizontal refrigerator 200 comprises a first inner container wall 23 and a second inner container wall 24 which are opposite to each other, a first air outlet 201 is formed in the first inner container wall 23, a second air outlet 203 is formed in the second inner container wall 24, wherein the first air outlet 201 is located at the upper edge of the first inner container wall 23, the second air outlet 203 is located at the middle part or the upper middle part of the second inner container wall 24, the first air outlet 201 and the second air outlet 203 are staggered relatively, and mutual interference during air outlet is avoided. The first air outlet 201 includes a plurality of first air outlet openings, the plurality of first air outlet openings penetrate through the first inner container wall 23, and the plurality of first air outlet openings are arranged along the transverse direction of the first inner container wall 23; similarly, the second air outlet 203 includes a plurality of second air outlet openings, the second air outlet openings penetrate through the second liner wall 24, and the second air outlet openings are arranged along the transverse direction of the second liner wall 24. The first inner container wall 23 is provided with a first air outlet duct connecting hole (not shown), and the second inner container wall 24 is provided with a second air outlet duct connecting hole (not shown).

In addition, if a food basket (not shown) is disposed in the inner container 20, the first outlet 201 is higher than the upper edge of the food basket; the second outlet 203 is slightly lower than the lower edge of the food basket. In addition, the air outlet sides of the first air outlet 201 and the second air outlet 203 may be respectively provided with an air outlet cover plate, the air outlet cover plate is located in the accommodating cavity 21, and the air outlet cover plate corresponds to the first air outlet 201 and the second air outlet 203 one to one, wherein the air outlet cover plate includes air outlet micro holes (refer to the description of the air outlet micro holes 811 in the first embodiment of the present invention), and the air outlet micro holes extend obliquely upward from the outer side surface of the air outlet cover plate to the opposite inner side surface of the air outlet cover plate and penetrate through the air outlet cover plate. By the design of the air outlet micro-holes, the air outlet can be declined to discharge air, namely, the air is discharged towards the bottom of the inner container 20. Of course, the air outlet micro-holes can also be replaced by the design of the air outlet grille.

A first air outlet duct groove 202 (shown by a dotted line in fig. 5A) is arranged between the first inner container wall 23 and the box shell 10, and a second air outlet duct groove 204 (shown by a dotted line in fig. 5B) is arranged between the second inner container wall 24 and the box shell 10, wherein the first air outlet duct groove 202 is communicated with the first air outlet 201 and the first air outlet duct connecting hole, and an air passage between the first air outlet duct groove 202 and the first inner container wall 23 is a first air outlet duct; the second air outlet channel groove 204 is communicated with the second air outlet and the second air outlet channel connecting hole, and an air channel between the second air outlet channel groove 204 and the second inner container wall 24 is a second air outlet channel; preferably, the first air outlet duct connecting hole is located in the middle of the first inner container wall 23, the second air outlet connecting hole is located at the lower edge of the second inner container wall 24, and the lower edge of the second inner container wall 24 is close to the bottom plate 25, but not limited thereto. In other embodiments of the present invention, the first air outlet duct connecting hole may also be located at the lower edge of the first inner container wall 23, and the lower edge of the first inner container wall 23 is close to the bottom plate 25; the second air outlet channel connecting hole can also be positioned in the middle of the second inner container wall 24.

The return air duct groove (not shown) is disposed in the evaporator compartment, for example, to communicate the return air inlet 205 and the evaporator compartment, to guide the return air into the evaporator compartment to enter the evaporator 50, respectively, and to control the return air to flow from a first end of the evaporator 50 toward a second end of the evaporator 50, the first end being opposite to the second end. Wherein, the air channel between the return air channel slot and the air channel plate 210 is a return air channel.

The evaporator 50 in the horizontal freezer 200 is in a "horizontal arrangement," which means that the air flows in a direction parallel to the fins in the evaporator 50 as the air flows through the evaporator 50. Heating tubes are embedded in a plurality of fins of the evaporator 50 and provide heat to defrost frost condensed in the evaporator 50. In this embodiment, in order to facilitate the discharge of the defrosting water outside the evaporator chamber, the second end of the evaporator 50 close to the fan unit 60 is lower than the first end of the evaporator 50 far from the fan unit 60.

With continued reference to fig. 5A to 5C, the fan unit 60 is, for example, a centrifugal fan, the fan unit 60 is disposed between the first sidewall 221 and the evaporator chamber, and the evaporator 50 is disposed between the first cover 211 and the fan unit 60. In one embodiment, the third cover plate 213 of the duct plate 210 may be considered as a part of the housing of the fan unit 60.

When the fan unit 60 supplies air, the sucked air is divided into the first air outlet duct connecting hole of the first inner container wall 23 through the first flow dividing channel 1 and is divided into the second air outlet duct connecting hole of the second inner container wall 24 through the second flow dividing channel 2. The first diversion channel 1 and the second diversion channel 2 can be formed by, for example, providing a corresponding first diversion partition and a second diversion partition in the evaporator chamber, wherein the space between the first diversion partition and the first side wall 221 is the first diversion channel 1; the space between the second flow dividing partition and the first sidewall 222 is the second flow dividing channel 2, but not limited thereto. In other embodiments of the present invention, the first diversion channel and the second diversion channel are, for example, a duct structure, an air inlet of the duct structure is communicated with the fan set, and an air outlet of the duct structure is communicated with the first air outlet duct connection hole or the second air outlet duct connection hole.

The air circulation of the horizontal refrigerator 200 comprises air supply and air return, after the fan unit 60 works, the fan unit 60 sucks air on one side of the evaporator 50, the air enters a first diversion channel 1 and a second diversion channel 2 which are communicated with a first air outlet connecting hole and a second air outlet connecting hole, and the air enters a first air outlet channel and a second air outlet channel through the first air outlet connecting hole and the second air outlet connecting hole respectively; then the air is supplied into the liner 20 through the corresponding first air outlet 201 and the second air outlet 203; the air in the inner container 20 is guided into the evaporator chamber from the return air inlet 205 of the first cover plate 211 through the return duct groove, the air in the inner container 20 is guided to the evaporator 50 by the return duct groove, flows from the first end of the evaporator 50 toward the second end, and is sucked by the fan unit 60 again and sent out. When the horizontal refrigerator 200 is in use, the first inner container wall 23 is located at a side far from the user, that is, the first inner container wall 23 can be regarded as a back side of the horizontal refrigerator 100, the second inner container wall 24 is located at a side close to the user, that is, the second inner container wall 24 can be regarded as a front side of the horizontal refrigerator 100, and the first cover plate 211 is close to the bottom plate 25, so that the above-mentioned wind circulation can be regarded as a back side and front side wind outlet and bottom return wind circulation.

In the horizontal refrigerator 200 according to the second embodiment of the present invention, the second cover plate 212 of the air duct plate 210 has the bent portion 214, and the bent portion 214 reduces the occupied space of the evaporator chamber between the air duct plate 210 and the first side wall 221 of the concave portion 22, thereby improving the space utilization rate of the accommodating cavity 21 of the inner container 20. In addition, through the design of air outlet and return air inlet, the relative both sides of inner bag wall are also provided and are sent air simultaneously, and the air circulation that the inner bag is close to bottom return air.

Fig. 6A to 6C are schematic cross-sectional views of a horizontal refrigerator according to a third embodiment of the present invention at different viewing angles. In fig. 6A to 6C, elements with the same reference numerals as those in fig. 1 to 4C have similar functions, and are not repeated herein.

The horizontal refrigerator 300 according to the third embodiment of the present invention is different from the horizontal refrigerator 100 according to the first embodiment of the present invention in that 1) the structure of the concave portion of the inner container 20 is different; 2) the structure of the air duct plate 310 is different from that of the air duct plate 30; 3) the circulation of the wind in the inner container 20 is different.

Specifically, the bottom of the inner container 20 of the horizontal refrigerator 300 forms a concave part towards the accommodating cavity 21, the concave part is an arc-shaped side wall 223, one end of the arc-shaped side wall 223 is connected with the bottom plate 25, and the opposite other end of the arc-shaped side wall 223 is connected with the third inner container wall 26; the air duct plate 310 is arranged on one side of the arc-shaped side wall 223 and is positioned in the accommodating cavity 21, a space between the air duct plate 310 and the arc-shaped side wall 223 forms an evaporator chamber, and the evaporator 50 is arranged in the evaporator chamber; preferably, the arc-shaped sidewall 223 has a slope, and the evaporator 50 is combined on the slope of the arc-shaped sidewall 223.

In other words, the concave portion at the bottom of the inner container 20 in the horizontal refrigerator 300 replaces the first side wall 221 and the second side wall 222 of the concave portion 22 at the bottom of the inner container 20 in the horizontal refrigerator 100 by the arc-shaped side wall 223. The arc-shaped sidewall 223 extends upward from the bottom plate 25 toward the third inner container wall 25, so as to connect the bottom plate 25 and the third inner container wall 26, respectively. Preferably, the arc-shaped sidewall 223 is formed by bending the bottom plate 25 toward the accommodating chamber 21, for example.

The air duct plate 310 includes a first cover plate 311, a second cover plate 312 and a third cover plate 313, wherein the first cover plate 311 is substantially parallel to the oblique extension area of the arc-shaped sidewall 223, two ends of the second cover plate 312 are respectively connected to the first cover plate 311 and the bottom plate 25 of the inner container 20, and an included angle between the second cover plate 312 and the first cover plate 311 is an obtuse angle; the third cover 313 connects the first cover 311 and the third inner container wall 26, and an included angle between the third cover 313 and the first cover 311 is also an obtuse angle. Since the first cover 311 is substantially parallel to the obliquely extending region of the arc-shaped sidewall 223, the first cover 311 can also be regarded as an obliquely extending cover.

The inner container 20 includes a first inner container wall 23 and a second inner container wall 24, a first air outlet 301 is disposed on the first inner container wall 23, and a second air outlet 303 is disposed on the second inner container wall 24, wherein the first air outlet 301 is located at an upper edge of the first inner container wall 23, and the second air outlet 303 is located at a middle portion or a middle portion of the second inner container wall 24, so that the first air outlet 301 and the second air outlet 303 are staggered relatively, and the first air outlet 301 and the second air outlet 303 are prevented from being simultaneously exhausted and interfering with each other. The first air outlet 301 includes a plurality of first air outlet openings, the plurality of first air outlet openings penetrate through the first inner container wall 23, and the plurality of first air outlet openings are arranged along the transverse direction of the first inner container wall 23; similarly, the second air outlet 303 includes a plurality of second air outlet openings, the second air outlet openings penetrate through the second liner wall 24, and the second air outlet openings are arranged along the transverse direction of the second liner wall 24. In addition, a third air outlet 307 is disposed on the third inner container wall 26 of the inner container 20, the third inner container wall 26 is located between the first inner container wall 23 and the second inner container wall 24, and an air outlet position of the third air outlet 307 is slightly lower than the first air outlet 301 (as shown in fig. 6C).

In addition, if a food basket (not shown) is disposed in the inner container 20, the first outlet 301 is higher than the upper edge of the food basket; the second outlet 303 and the third outlet 307 are respectively slightly lower than the lower edge of the food basket. In addition, air outlet cover plates may be respectively disposed at the air outlet sides of the first outlet 301, the second outlet 303 and the third outlet 307, and the air outlet cover plate includes air outlet micro holes (refer to the description of the air outlet micro holes 811 in the first embodiment of the present invention), and the air outlet micro holes extend obliquely upward from the outer side surface of the air outlet cover plate to the opposite inner side surface of the air outlet cover plate and penetrate through the air outlet cover plate. By the design of the air outlet micro-holes, the air outlet can be declined to discharge air, namely, the air is discharged towards the bottom of the inner container 20. Of course, the air outlet micro-holes can also be replaced by the design of the air outlet grille.

Set up first air outlet duct groove 302 (dotted line in fig. 6A) between first inner bag wall 23 and the case shell 10, set up second air outlet duct groove 304 (dotted line in fig. 6B) between second inner bag wall 24 and the case shell 10, set up third air outlet duct groove 308 between third inner bag wall 26 and the case shell 10, first air outlet duct groove 302 to third air outlet duct groove are fixed in respectively on the inner bag wall that inner bag 20 corresponds for first air outlet duct groove 302 to third air outlet duct groove 308 do not occupy the space that holds chamber 21 of inner bag 20. Further, the first air outlet duct groove 302 communicates the first air outlet 301 with a first air outlet duct connecting hole (not shown), and an air passage between the first air outlet duct groove 302 and the first inner container wall 23 is a first air outlet duct; the second air outlet duct groove 304 communicates the second air outlet 303 with a second air outlet duct connecting hole (not shown), and an air passage between the second air outlet duct groove 304 and the second inner container wall 24 is a second air outlet duct; the third air outlet channel groove 308 is communicated with the third air outlet 307 and the third air outlet channel connecting hole, and an air channel between the third air outlet channel groove 308 and the third inner container wall 26 is a third air outlet channel; the first outlet duct connecting hole, the second outlet duct connecting hole and the third outlet duct connecting hole may be respectively disposed on the first inner container wall 23, the second inner container wall 24 and the third inner container wall 26, but not limited thereto. In other embodiments of the present invention, the first to third air duct connecting holes may be combined into one, for example, disposed on the third inner container wall of the inner container, and at this time, the structures of the first air outlet duct groove, the second air outlet duct groove and the third air outlet duct groove are correspondingly improved, so as to achieve the effect that one air outlet duct connecting hole simultaneously supplies air to a plurality of air outlet duct grooves.

In addition, the air flow passage formed between the third cover plate 313 and the corresponding partial arc-shaped side wall 223 is used for communicating the first to third air duct connection holes.

The air return opening 305 is disposed on the second cover plate 312, and preferably, the air return opening 305 is disposed on a lower edge of the second cover plate 312, and the lower edge of the second cover plate 312 is close to the bottom plate 25. The return air opening 305 includes, for example, a plurality of return air openings extending through the second cover plate 312 and arranged in a longitudinal array along the surface of the second cover plate 312. A return air duct (not shown) is disposed, for example, in the evaporator compartment for communicating the return air inlet with the evaporator compartment, and directs return air entering the evaporator compartment into the evaporator 50, preferably to direct the return air from a first end 51 of the evaporator 50 toward a second end 52 of the evaporator 50. Wherein, the air circulation channel between the return air channel groove and the air channel plate 310 is a return air channel.

In the evaporator cavity of the horizontal refrigerator 300, the fan unit 60 and the evaporator 50 are sequentially arranged on the surface of the arc-shaped side wall 223, the fan unit 60 is located above the evaporator 50, the fan unit 60 is close to an air outlet channel connecting hole arranged on the inner container wall of the inner container 20, and the evaporator 50 is close to the bottom plate 25 of the inner container 20.

Due to the inclined structure of the arc-shaped sidewall 223, the evaporator 50 is substantially disposed by the arc-shaped sidewall 223, and the second end 52 of the evaporator 50 close to the fan set 60 is higher than the first end 51 of the evaporator 50 far away from the fan set 60 by the arc-shaped sidewall 223. At this time, the curved sidewalls 223 have a function similar to that of the top and bottom insulating

layers

41 and 42 having a slope structure in the horizontal refrigerator 100 of the first embodiment of the present invention, that is, to maintain the inclination of the evaporator 50. In addition, the arc-shaped sidewall 223 and the first cover 311 substantially parallel thereto cooperate to further reduce the space occupied by the evaporator chamber, thereby improving the space utilization of the inner container 20.

Further, the evaporator 50 in the horizontal refrigerator 300 is in a "horizontal arrangement", which means that when air flows through the evaporator 50, the circulation direction of the air is parallel to the fins in the evaporator 50. Heating tubes are embedded in a plurality of fins of the evaporator 50 and provide heat to defrost frost condensed in the evaporator 50.

The air circulation of the horizontal refrigerator 300 includes air supply and air return, for example, after the fan set 60 works, air is sucked from one side of the evaporator 50, air is supplied from the other side of the fan set 60, and the air respectively enters the first air outlet channel, the second air outlet channel and the third air outlet channel through the air outlet channel connecting holes (the number of the air outlet channel connecting holes may be one or more), and then enters the inner container 20 through the corresponding first air outlet 301, the second air outlet 303 and the third air outlet 307; the air in the inner container 20 returns from the return air inlet 305, enters the evaporator chamber through the return duct groove, and is processed by the evaporator 50, and then is sucked again by the fan unit 60 and sent out. In this embodiment, the first inner container wall 23 is away from the user, for example, and is located at the back side of the horizontal refrigerator 200; the second inner container wall 24 is located on the front side of the chest cooler 200, for example, near the user; the third inner container wall 26 is, for example, located on the right side of the user; the air return opening 205 of the second cover plate 312 is close to the bottom plate 25 of the inner container 20. The air circulation process can be regarded as that the air is supplied from the back side, the front side and the right side simultaneously, and the air is returned from the bottom.

In the horizontal refrigerator 300 according to the third embodiment of the present invention, the sidewall of the concave portion of the inner container 20 is set to be the arc sidewall, the first cover plate of the air duct plate is substantially parallel to the arc sidewall, and the evaporator is combined to the inclined structure of the arc sidewall, so as to further reduce the occupied space of the evaporator chamber between the air duct plate and the arc sidewall of the concave portion, and improve the space utilization rate of the accommodating cavity 21 of the inner container 20. In addition, through the design of air outlet and return air inlet, the air circulation that the relative both sides of inner bag wall and right side three sides were supplied air simultaneously, inner bag were close to bottom return air is also provided.

Fig. 7A is a schematic top view of a horizontal freezer in a fourth embodiment of the present invention; fig. 7B and 7C are schematic cross-sectional views of a horizontal freezer in a fourth embodiment of the invention at different viewing angles; fig. 7D and 7E are schematic views of an air duct plate of a horizontal refrigerator according to a fourth embodiment of the present invention; fig. 7F is a schematic sectional view of an evaporator of a horizontal refrigerator according to a fourth embodiment of the present invention. In fig. 7A to 7F, elements with the same reference numerals as those in fig. 1 to 4C have similar functions, and are not repeated herein.

As shown in fig. 7A to 7F, a horizontal refrigerator 400 is provided in a fourth embodiment of the present invention, and the horizontal refrigerator 400 is different from the horizontal refrigerator 100 provided in the first embodiment of the present invention in that 1) the air duct plate 410 is disposed at a different position and has a different structure; 2) the evaporator 50' in the evaporator chamber is "vertically disposed"; 3) the evaporator 50' is assembled differently from the inner container 20.

Specifically, the horizontal refrigerator 400 includes the inner container 20, the bottom of the inner container 20 is recessed toward the accommodating cavity 21 of the inner container 20 to form a concave portion, the concave portion includes a first sidewall 221 and a second sidewall 222 which are perpendicular to each other, one end of the first sidewall 221 is vertically connected to the bottom plate 25, and the second sidewall 222 is vertically connected to the third inner container wall 26 of the inner container 20; the air duct plate 410 is disposed at one side of the first sidewall 21, and a space between the air duct plate 410 and the first inner container wall 23 of the inner container 20 forms an evaporator chamber, in which the evaporator 50' is disposed.

In this embodiment, the air duct plate 410 includes a first cover plate 411, a second cover plate 412, a third cover plate 413 and a fourth cover plate 414, one end of the first cover plate 411 is vertically connected to the second cover plate 412, the opposite end of the first cover plate 411 is combined to the first liner wall 23 of the liner 20, the second cover plate 412 is parallel to the first liner wall 23, the third cover plate 413 is parallel to and opposite to the fourth cover plate 414, and the third cover plate 413 and the fourth cover plate 414 are equally combined to the first cover plate 411 and the second cover plate 412, respectively. The spaces between the first, second, third and

fourth cover plates

411, 412, 413 and 414 and the first inner container wall 23 form an evaporator chamber, the evaporator 50 'is installed in the evaporator chamber, preferably, the fan unit 60 is installed in the evaporator chamber, and the fan unit 60 is installed above the evaporator 50'. The fan unit 60 is located above the evaporator 50 ', which means that the fan unit 60 is located between the evaporator 50' and the first cover 411, and the fan unit 60 is located substantially in the upper space of the evaporator chamber. In order to fix the fan unit 60, the side of the second cover plate 412 facing the evaporator cavity has an extension boss 420, and the fan unit 60 is fixed on the extension boss 420. In this embodiment, the surface of the extension boss 420 for fixing the fan set 60 is an inclined surface, so that the upper side of the fan set 60 is inclined toward the first inner container wall 23, that is, the fan set 60 is obliquely disposed above the evaporator 50 ', wherein the extension boss 420 with the inclined surface does not affect the air suction of the fan set 60 from the side of the evaporator 50', that is, does not affect the air circulation in the accommodating cavity 21 of the entire inner container 20.

The air duct plate 410 is not limited to the structure shown in fig. 7D and 7E, but in other embodiments of the present invention, the air duct plate is, for example, a U-shaped structure, an opening of the U-shaped structure faces the first inner container wall, wherein the fan unit is located on an upper side of the air duct plate of the U-shaped structure, a bottom wall of the U-shaped structure is parallel to and opposite to the first inner container wall, and a housing of the fan unit is fixed to the bottom wall of the U-shaped structure in an inclined manner and inclined toward the first inner container wall. Wherein, the shell of fan group constitutes the passageway of circulation of air jointly with U type structure and first inner bag wall.

Further, as shown in fig. 7F, the evaporator 50 ' is in a "vertical arrangement", which means that the air flows through the evaporator 50 ' in a direction perpendicular to the fins in the evaporator 50 '. The bottom of the evaporator 50 'is provided with a heating pipe which provides heat to defrost the frost condensed in the evaporator 50'.

Further, the evaporator 50 ' includes a hook 501, and a mounting hole (not shown) is provided in the first inner container wall 23 of the inner container 20 corresponding to the hook 501, and the evaporator 50 ' is directly hooked to the first inner container wall 23 by engaging the hook 501 into the mounting hole, thereby facilitating assembly of the evaporator 50 '.

Since the evaporator 50' is vertically disposed in the embodiment, compared to the evaporator 50 "horizontally disposed" in the horizontal refrigerator 100, the vertical depth of the evaporator chamber between the air duct plate 410 and the first inner container wall 23 in the horizontal refrigerator 400 is smaller, wherein the evaporator chamber with smaller vertical depth occupies smaller space, thereby improving the space utilization rate of the inner container 20. The fan unit 60 is disposed in the evaporator cavity with a smaller longitudinal depth, an extension boss 420 is formed inside the air duct plate 410, and the fan unit 60 is fixed on the extension boss 420 in an inclined manner. The extension boss 420 is not limited to protruding from the second cover plate 412 of the air duct plate 410. In other embodiments of the invention, the extension boss may project from the airway plate or first liner wall 23 into the evaporator chamber.

The fan unit 60 is, for example, a centrifugal fan, but not limited thereto. In other embodiments, the fan unit 60 may be an axial fan.

With continued reference to fig. 7A to 7C, the inner container 20 of the horizontal refrigerator 400 includes a first inner container wall 23, a first air outlet 401 is disposed on the first inner container wall 23, a first air outlet channel (not shown) is disposed between the first inner container wall 23 and the box housing 10, wherein a first air outlet channel connecting hole (not shown) communicated with the fan unit 60 is also disposed on the first inner container wall 23, the first air outlet channel connecting hole communicates with the first air outlet 401, an air flow channel between the first air outlet channel and the first inner container wall 23 is a first air channel, and air sent by the fan unit 60 enters the first air outlet channel from the first air outlet channel connecting hole and then enters the accommodating cavity 21 of the inner container 20 through the first air outlet 401.

When a food basket (not shown) is provided in the inner container 20, the first outlet 401 is higher than the upper edge of the food basket. In addition, the air outlet sides of the first air outlets 401 may be respectively provided with an air outlet cover plate, and the air outlet cover plate includes air outlet micro holes (refer to the description of the air outlet micro holes 811 in the first embodiment of the present invention), and the air outlet micro holes extend obliquely upward from the outer side surface of the air outlet cover plate to the opposite inner side surface of the air outlet cover plate and penetrate through the air outlet cover plate. By the design of the air outlet micro-holes, the first air outlet 401 can be inclined to discharge air, i.e. discharge air toward the bottom of the inner container 20. Of course, the air outlet micro-holes can also be replaced by the design of the air outlet grille.

The inner container 20 of the horizontal freezer 400 includes a bottom plate 25, a return air inlet 402 is disposed on the bottom plate 25, a return air duct groove (not shown) is disposed between the bottom plate 25 and the cabinet housing 10, preferably, the return air inlet 402 is disposed on one side of the bottom plate 25 close to the second inner container wall 24, the second inner container wall 24 and the first inner container wall 23 are respectively disposed on two opposite sides of the bottom plate 23, wherein the bottom plate 25 is further disposed with a return air duct connecting hole (not shown), the return air duct connecting hole is disposed in an area of the bottom plate 25 close to the evaporator 50', and the return air duct connecting hole is preferably disposed in the evaporator chamber. The air return channel groove is communicated with the air return inlet 402 and the air return channel connecting hole, the air channel between the air return channel groove and the bottom plate 25 is an air return channel, and the air in the accommodating cavity 21 of the inner container 20 enters the air return channel from the air return inlet, enters the evaporator 50 'through the air return channel connecting hole, is treated by the evaporator 50', and is sucked by the fan unit 60 again and sent out.

From the above, the air circulation in the horizontal refrigerator 400 includes air supply and air return, after the fan unit 60 works, air is sucked from one side of the evaporator 50', and is supplied through the other side of the fan unit 60, and the air enters the first air duct from the air outlet duct connecting hole and then enters the inner container 20 through the first air outlet 401; the air in the inner container 20 returns air from the air return port 402, the air of the returned air enters the evaporator cavity from the air return channel through the air return channel connecting hole, flows from the lower part of the evaporator 50 'to the upper part, and is sucked by the fan unit 60 again after the water vapor is removed by the evaporator 50'. In this embodiment, the first inner container wall 23 is away from the user, for example, and is located at the back side of the horizontal refrigerator 200; and the return air inlet 402 is close to the bottom plate 25 of the inner container 20. The air circulation process can be seen as air supply at the back side and air return at the bottom.

In other embodiments of the present invention, the air outlet of the horizontal freezer 400 is not limited to be disposed on the first inner container wall 23, and a second air outlet (not shown) and a third air outlet (not shown) may be disposed on the third inner container wall 26 and the fourth inner container wall 27, respectively, the second air outlet is communicated with the first air outlet duct connecting hole through a second air outlet duct groove (not shown), the third air outlet is communicated with the first air outlet duct connecting hole through a third air outlet duct groove (not shown), the second air outlet duct groove is disposed between the third inner container wall 26 and the cabinet 10, the third air outlet duct groove is disposed between the fourth inner container wall 27 and the cabinet 10, the air passage between the second air outlet duct groove and the third inner container wall 26 is a second air duct, and the air passage between the third air outlet duct groove and the fourth inner container wall 27 is a third air duct. Air sent out by the fan unit 60 passes through the first air duct, the second air duct and the third air duct from the first air duct connecting hole respectively, and then enters the accommodating cavity of the inner container from the first air outlet 401, the second air outlet and the third air outlet respectively. When the horizontal refrigerator 400 is used, the third inner container wall 26 is located on the right side of the user, the fourth inner container wall 27 is located on the left side of the user, and the air return opening 402 is still formed in the side, close to the second inner container wall 24, of the bottom plate 25, so that the air outlet can be regarded as the circulation of the air supply on the back side, the left side and the right side simultaneously and the air return on the bottom.

In the horizontal refrigerator 400 according to the fourth embodiment of the present invention, the vertically disposed evaporator 50 'is hung on the first inner container wall 23 of the inner container 20, so that the installation steps of the evaporator 50' are simplified, the longitudinal depth of the evaporator chamber is reduced, the horizontal space occupation of the evaporator chamber is reduced, and the space utilization rate of the accommodating cavity 21 of the inner container 20 is improved. In addition, depending on the arrangement of the evaporator 50', a backside air supply, a bottom return air or a backside, left and right air supply, bottom return air circulation is provided.

Fig. 8A is a schematic top view of a horizontal refrigerator according to a fifth embodiment of the present invention; fig. 8B to 8D are schematic cross-sectional views of a horizontal refrigerator according to a fifth embodiment of the present invention at different viewing angles. In fig. 8A to 8D, elements with the same reference numerals as those in fig. 1 to 4C have similar functions, and are not repeated herein.

A fifth embodiment of the present invention provides a chest freezer 500, and the chest freezer 500 is different from the chest freezer 100 provided in the first embodiment of the present invention in that: 1) the relative positions of the fan unit 60 and the evaporator 50 are different; 2) the air circulation of the chest freezer 500 is different from the air circulation of the chest freezer 100.

As shown in fig. 8A to 8D, the bottom of the inner container 20 of the horizontal refrigerator 500 is recessed toward the accommodating cavity 21 to form a concave portion, the concave portion includes a first sidewall 221 and a second sidewall 222 that are perpendicular to each other, the first sidewall 221 is vertically connected to the bottom plate 25, and the second sidewall 222 is vertically connected to the third inner container wall 26; the air duct plate 510 is disposed at one side of the first sidewall 221, a space between the air duct plate 510 and the first sidewall 221 constitutes an evaporator chamber, and the evaporator 50 is disposed in the evaporator chamber; wherein, the air duct plate 510 is located in the accommodating cavity 21 of the inner container 20.

The air duct plate 510 includes a first cover plate 511 and a second cover plate 512 perpendicular to each other, the first cover plate 511 is parallel to the first sidewall 221, the second cover plate 512 is located between the first cover plate 511 and the first sidewall 221, and a top surface of the second cover plate 512 and a top surface of the second sidewall 222 are flush with each other. In this embodiment, the first cover 511 is provided with a return air opening 505, and the return air opening 505 is close to the lower edge of the first cover 511 close to the bottom plate 25, wherein the return air opening 505 may include a plurality of return air openings, the plurality of return air openings penetrate through the first cover 511, and the plurality of return air openings are arranged along the first cover 511 in a longitudinal direction, but not limited thereto. In other embodiments, the air return opening 505 is, for example, a longitudinally extending elongated opening that extends through the first cover 511.

A return air duct groove 506 is arranged between the first cover plate 511 and the evaporator 50, and a return air duct connecting hole 507 is arranged at one side of the return air duct groove 506 close to the second inner container wall 24; the return duct groove 506 communicates the return air inlet 505 with the return duct connection hole 507; the air passage between the return duct groove 506 and the first cover 511 is a return duct.

The liner 20 comprises a first liner wall 23 and a second liner wall 24 which are oppositely arranged, the first liner wall 23 is provided with a first air outlet 501, and the second liner wall 24 is provided with a second air outlet 503; a first air outlet duct 502 (shown by a dotted line in fig. 8B) is arranged between the first inner container wall 23 and the cabinet 10, and a second air outlet duct 504 (shown by a dotted line in fig. 8C) is arranged between the second inner container wall 24 and the cabinet 10; the first inner container wall 23 is provided with a first air outlet duct connecting hole (not shown), and the second inner container wall 24 is provided with a second air outlet duct connecting hole (not shown). The first air outlet duct groove 502 is respectively communicated with the first air outlet 501 and the first air outlet duct connecting hole, and the second air outlet duct groove 504 is respectively connected with the second air outlet 503 and the second air outlet duct connecting hole; an air passage between the first air outlet channel 502 and the first inner container wall 23 is a first air outlet channel, and an air passage between the second air outlet channel 504 and the second inner container 24 is a second air outlet channel.

In order to avoid the air outlet interference between the first outlet 501 and the second outlet 503, the first outlet 501 is disposed on the upper side of the first liner wall 23, and the second outlet 503 is disposed in the middle of the second liner wall 24. If a basket is disposed in the inner container 20, preferably, the first air outlet 501 is higher than an upper edge of the basket (not shown) in the inner container 20, and the second air outlet 503 is slightly lower than a lower edge of the basket (not shown) in the inner container 20.

The first air outlet 501 includes a plurality of first air outlet openings, the plurality of first air outlet openings penetrate through the first inner container wall 23, and the plurality of first air outlet openings are arranged along the transverse direction of the first inner container wall 23; similarly, the second air outlet 503 includes a plurality of second air outlet openings, the second air outlet openings penetrate through the second liner wall 24, and the second air outlet openings are arranged along the lateral direction of the second liner wall 24. The air outlet sides of the first air outlet 501 and the second air outlet 503 may be respectively provided with an air outlet cover plate, the air outlet cover plate includes air outlet micro holes (refer to the description of the air outlet micro holes 811 in the first embodiment of the present invention), and the air outlet micro holes extend obliquely upward from the outer side surface of the air outlet cover plate to the opposite inner side surface of the air outlet cover plate and penetrate through the air outlet cover plate. By the design of the air outlet micro-holes, the air outlet can be declined to discharge air, namely, the air is discharged towards the bottom of the inner container 20. Of course, the air outlet micro-holes can also be replaced by the design of the air outlet grille.

Further, the fan unit 60 is disposed in the evaporator cavity, the fan unit 60 is disposed close to the first inner container wall 23, and the fan unit 60 is located above the evaporator 50 in the evaporator cavity, that is, the fan unit 60 is located between the second cover plate 512 and the evaporator 50 (as shown in fig. 8B and 8D), a support structure may be disposed in the evaporator cavity, the support structure is located between the first inner container wall 23 and the second end 52 of the evaporator 50, the fan unit 60 is located on the upper side of the support structure, and the evaporator 50 is located on the lower side of the support structure.

As shown in fig. 8D, the evaporator chamber further includes a partition 508, the partition 508 is disposed at an upper side of the evaporator 50, an air passage between the partition 508 and the second cover plate 512 is a third air outlet, and two ends of the third air outlet are respectively communicated with the first air outlet connection hole and the second air outlet connection hole. In this embodiment, the baffle 508 is located in the evaporator chamber, substantially dividing the evaporator chamber into an upper region and a lower region, the upper region being the region between the baffle 508 and the second cover plate 512, which serves as a third air outlet; the lower region is a region between the partition 508 and the bottom plate 25, which serves as a housing space for the evaporator 50.

The fan unit 60 is a centrifugal fan which sucks air from one side of the evaporator 50 and sends the air toward the third air outlet duct.

The evaporator 50 in the horizontal freezer 500 is in a "horizontal arrangement," which means that the air flows in a direction parallel to the fins in the evaporator 50 as the air flows through the evaporator 50. Heating tubes are embedded in a plurality of fins of the evaporator 50 and provide heat to defrost frost condensed in the evaporator 50.

In addition, in order to facilitate the discharge of the defrosted water in the evaporator 50, the evaporator 50 is placed in an inclined manner in the evaporator chamber. The second end 52 of the evaporator 50 close to the fan unit 60 is higher than the first end 51 of the evaporator 50 far away from the fan unit 60, so that the phenomenon that the defrosting water in the evaporator 50 flows to the fan unit 60 to cause the fan unit 60 to suck the defrosting water, frost is frozen and work is abnormal is avoided.

A top insulating layer may be disposed between the evaporator 50 and the partition 508, and a water receiving box and a bottom insulating layer 42 stacked in sequence may be disposed between the evaporator 50 and the bottom plate 25. The top and bottom insulating layers serve to isolate the evaporator 50 from the external environment. And, the bottom insulation layer 42 has a slope structure such that the first end 51 of the evaporator 50 is lower than the second end 52. The top and bottom insulating

layers

42 and 41 of the first embodiment of the present invention are explained with reference to the description of the top and bottom insulating

layers

42 and 41 of the first embodiment of the present invention.

The air circulation in the horizontal refrigerator 500 includes air supply and air outlet, the fan of the fan unit 60 is a centrifugal fan, when the centrifugal fan works, air is sucked from one side of the evaporator 50, and is supplied through the other side of the fan unit 60, the air enters the third air duct, enters the first air duct and the second air duct through the first air outlet duct connecting hole and the second air outlet duct connecting hole respectively, and then enters the inner container 20 through the first air outlet 501 and the second air outlet 503; the air in the inner container 20 returns from the air return opening 505 on the first side wall 511 of the air duct plate 510 to enter the air return duct, enters the evaporator chamber through the air return duct connecting hole 507, flows from the first end 51 of the evaporator 50 toward the second end 52, is sucked by the fan unit 60 again after being processed by the evaporator 50, and is sent to the air outlet duct. When the horizontal refrigerator 500 is used, the first inner container wall 23 is located at a side far away from the user and can be regarded as the back side of the horizontal refrigerator 500; the second liner wall 24 is located on a side near the user and may be considered a proximal side of the chest cooler 500; and the air return opening 505 is arranged close to the bottom plate 25 of the inner container 20; therefore, the wind circulation can also be regarded as the circulation of back side and front side wind outlet and bottom return wind.

In summary, according to the horizontal refrigerator provided by the invention, the air duct plate is arranged at one side of the concave portion of the inner container, and a space between the air duct plate and the side wall of the concave portion of the inner container or the wall of the inner container serves as an evaporator chamber to accommodate the evaporator; the arrangement positions of the air outlet and the air return inlet on the inner container are adjusted in a matched manner, so that the aim of uniformly controlling the temperature of the inner container is fulfilled, and the phenomenon of dewing of a glass door body of the horizontal refrigerator is effectively solved. In addition, the occupied space of the evaporator cavity can be effectively reduced by improving the structures of the concave part and the air duct plate, and the space utilization rate of the accommodating cavity of the inner container is further improved.

The present invention is capable of other embodiments, and various changes and modifications may be made by one skilled in the art without departing from the spirit and scope of the invention.

Claims

1. An air-cooled horizontal freezer comprising:

the door body is arranged above the box body;

2. The air-cooled horizontal refrigerator according to claim 1, wherein the inner container walls include a first inner container wall and a second inner container wall respectively disposed on a pair of long sides of the base plate, the plurality of air outlets are disposed on the first inner container wall, and the air return openings are disposed on the second inner container wall.

3. The air-cooled horizontal refrigerator according to claim 2, wherein the first air outlet is provided near an upper edge of the first inner container wall and includes a plurality of air outlet openings arranged in a lateral direction of the first inner container wall;

4. The air-cooled horizontal refrigerator of claim 3 wherein the plurality of air outlets further comprise a third air outlet disposed at a lower edge of the first liner wall; and the air outlet opening of the third air outlet is less than that of the second air outlet.

5. The air-cooled horizontal refrigerator according to claim 1, wherein the inner container walls include first and second inner container walls provided on a pair of long sides of the base plate, respectively, and third and fourth inner container walls provided on a pair of short sides of the base plate, respectively;

6. The air-cooled horizontal refrigerator of claim 5 wherein the air duct plate comprises a first cover plate extending upwardly from the base plate, the first cover plate being parallel to the third liner wall, and the air return opening being provided in the first cover plate.

7. The air-cooled horizontal refrigerator according to claim 5, wherein the first air outlet is provided near an upper edge of the first inner container wall and includes a plurality of air outlet openings arranged in a lateral direction of the first inner container wall;

8. The air-cooled horizontal refrigerator according to claim 1, wherein air outlet cover plates are respectively arranged at air outlet sides of the first air outlet and the second air outlet, the air outlet cover plates are provided with air outlet micro holes, and the air outlet micro holes penetrate through the air outlet cover plates.

9. The air-cooled horizontal refrigerator according to claim 8, wherein the air outlet micro-holes extend from the outer side surface of the air outlet cover plate to the inner side surface of the air outlet cover plate in an inclined manner, and the inner side surface of the air outlet cover plate is opposite to the outer side surface of the air outlet cover plate and faces away from the accommodating cavity.

10. The air-cooled horizontal refrigerator according to claim 1, wherein the inner container walls include a first inner container wall and a second inner container wall which are oppositely arranged in a longitudinal direction, and a third inner container wall and a fourth inner container wall which are oppositely arranged in a transverse direction; the lower edge of the third inner container wall is higher than the lower edge of the fourth inner container wall;