CN113154751A

CN113154751A - Air-cooled horizontal refrigerator

Info

Publication number: CN113154751A
Application number: CN202110388534.6A
Authority: CN
Inventors: 李大伟; 丁剑波; 成俊亮; 彭灿; 刘英志; 朱蔚莉
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: WO2020134168A1; CN113154751B; CN111351280A; CN113154748B; CN113154748A; CN111351280B

Abstract

The invention relates to an air-cooled horizontal refrigerator, comprising: a cabinet housing; the liner is embedded in the box shell and provided with an accommodating space, a first liner wall and a second liner wall which are longitudinally opposite, a third liner wall and a fourth liner wall which are transversely opposite, and the longitudinal length of the accommodating space is smaller than the transverse length; the refrigerator is characterized by further comprising a cover plate positioned in the accommodating space, wherein the cover plate divides the accommodating space into a storage chamber and a refrigerating chamber positioned between the cover plate and the inner container; an evaporator housed in the refrigeration compartment, having a vertical height less than its transverse width and less than its longitudinal width. So, through arranging the position of apron, evaporimeter, can reduce the height of refrigeration room in vertical direction to the tiling form is arranged inside the inner bag, makes things convenient for placing of article, does benefit to and promotes space utilization.

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 and is not easy to dewing on a glass door body above an inner container by changing the arrangement position of an evaporator and the wind circulation mode in the inner container.

The invention provides a horizontal refrigerator, which comprises a box body, wherein the box body comprises a box shell and an inner container, the inner container is embedded in the box shell, the inner container is provided with an accommodating space, the bottom of the inner container is sunken towards the accommodating space to form a concave part, the concave part is provided with a first side wall, and one end of the first side wall is connected to a bottom plate of the inner container; the air duct plate is arranged close to the first side wall, and a space between the air duct plate and the first side wall forms a refrigerating chamber; wherein, the air duct plate is positioned in the accommodating space.

As an optional technical solution, the concave part further includes a second side wall, and the second side wall is perpendicular to the first side wall.

As an optional technical solution, the air duct plate includes a first cover plate and a second cover plate, the first cover plate is parallel to and opposite to the first sidewall, and the second cover plate is parallel to and opposite to the bottom plate.

As an alternative solution, the top surface of the first cover plate is flush with the top surface of the second side wall.

As an optional technical solution, the first cover plate and the second cover plate are perpendicular to each other.

As an optional technical scheme, the inner container comprises a first inner container wall and a second inner container wall which are oppositely arranged; the horizontal refrigerator also comprises a fan unit, and the fan unit is arranged between the first inner container wall and the refrigerating compartment.

As an optional technical solution, the refrigeration system further includes an evaporator, the evaporator is disposed in the refrigeration compartment, a second end portion of the evaporator, which is close to the fan unit, is higher than a first end portion of the evaporator, which is far away from the fan unit, and the second end portion is opposite to the first end portion.

As an optional technical scheme, the evaporator is arranged in a horizontal mode.

As an optional technical scheme, the air conditioner further comprises a water receiving box, wherein the water receiving box is arranged between the evaporator and the bottom plate and comprises a water outlet, and the water outlet is positioned on the side edge of the water receiving box, which is far away from the fan set.

As an optional technical scheme, a plurality of groups of air outlets are arranged on the wall of the first inner container, a plurality of groups of air outlet cover plates are arranged in the accommodating space, the air outlet cover plates correspond to the plurality of groups of air outlets one to one, an air outlet micro structure is arranged on each air outlet cover plate corresponding to an area where an air outlet opening of each air outlet is located, the air outlet micro structure comprises an air outlet micro hole, and the air outlet micro hole penetrates through the air outlet cover plate.

As an optional technical solution, the air outlet micro-hole extends obliquely upward from the outer surface of the air outlet cover plate toward the inner surface of the air outlet cover plate and penetrates through the air duct plate, wherein the outer surface is opposite to the inner surface, and the air outlet micro-hole controls the air outlet direction of the plurality of air outlets to be downward inclined for air outlet.

As an optional technical solution, the bottom plate is bent towards the accommodating space to form the concave portion.

Compared with the prior art, in the horizontal refrigerator provided by the invention, the refrigerating chamber is positioned on one side of the concave part at the bottom of the inner container; the inner container wall on the opposite side of the inner container is respectively provided with a plurality of air outlets and air return inlets, and the distances of air outlet and air return are shortened by adjusting the positions of the refrigerating chamber and the air outlet air return inlets, so that the temperature balance in the inner container is effectively maintained, and the glass door body is prevented from dewing. In addition, the evaporator is horizontally arranged in the refrigerating chamber, and the second end part of the evaporator close to the fan set is higher than the first end part, so that the defrosting water is conveniently discharged out of the refrigerating chamber, and the phenomenon that the fan set sucks the defrosting water to cause abnormity is avoided.

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. 3C is a schematic view of the evaporator of 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. 3C is a schematic view of the evaporator of 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 box shell 10, the inner container 20 has an accommodating space 21, the accommodating space 21 is used for storing articles to be frozen or refrigerated, the bottom of the inner container 20 is recessed towards the accommodating space 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 space 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 forms a refrigeration compartment, in which the evaporator 50 is disposed; wherein, the air duct plate 30 is located in the accommodating space 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 space 21, but not limited thereto. In other embodiments of the present invention, the first sidewall 221 of the concave portion 22 may be bent from the bottom plate 25 toward the accommodating space 21, the second sidewall 222 may be bent from the third inner container wall 26 toward the accommodating space, and the first sidewall 221 and the second sidewall 222 meet and are connected to each other in the accommodating space 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 a refrigerating chamber, and the evaporator 50 is disposed in the refrigerating chamber. The bottom plate 25 of the inner container 20 is provided with a mounting groove (not shown) corresponding to a region of the refrigerating compartment 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 may 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 refrigeration compartment 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 refrigeration compartment 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 space 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 inner container 20 further includes a fourth inner container wall 27, the fourth inner container wall 27 is opposite to the third inner container wall 26, the fourth inner container wall 27 extends upward from the other side edge of the bottom plate 25 and is respectively and vertically connected to the first inner container wall 23 and the second inner container wall 24, wherein a space surrounded by the first side wall 221 and the second side wall 222 of the first inner container wall 23, the second inner container wall 24, the third inner container wall 26, the fourth inner container wall 27, the bottom plate 25 and the concave portion 22 is the accommodating space 21 of the inner container 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 space 21 of the inner container 20, and the plurality of groups of air return openings are used for returning air in the accommodating space 21 of the inner container 20 to the refrigerating compartment 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 space 21, preferably, the first air outlet 231 at the upper portion of the first inner container wall 23 is higher than an upper edge of the food basket, and the second air outlet 232 at the middle portion 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 temperatures of the regions in the accommodating space 21, the third air outlet 233 is additionally disposed at a 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 disposed at a position of the first liner wall 23 close to the second sidewall 222 of the concave portion 22, so that the accommodating space 21 is prevented from having an air outlet dead angle.

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 refrigerating chamber, 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 cover plate 85 is arranged between the first inner container wall 23 and the case shell 10, an air return channel cover plate 86 is arranged between the second inner container wall 24 and the case shell 10, wherein the air outlet channel cover plate 85 is respectively communicated with a plurality of groups of air outlets and air outlet channel connecting holes 235, the air return channel cover plate 86 is respectively communicated with a plurality of groups of air return inlets and air return channel connecting holes 243, an air channel between the air outlet channel cover plate 85 and the first inner container wall 23 is an air outlet channel, and an air channel between the air return channel cover plate 86 and the second inner container wall 24 is an air return channel. The 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 space 21 of the inner container 20 through the plurality of air outlets, the air in the accommodating space 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 refrigerating compartment 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 channel cover 85 is fixed on the side of the first inner container wall 23 facing the case 10, the air return channel cover 86 is fixed on the side of the second inner container wall 24 facing the case 10, and the foaming layer 90 is filled between the inner container 20 and the case 10, so that the air outlet channel cover 85 and the air return channel cover 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 outlet cover plate 81. 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 23 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 used 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 cooling compartment, 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 fan set 60 from being frozen by sucking the defrosting water when rotating, 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.

Referring to fig. 3C, in the horizontal refrigerator 100, the evaporator 50 is in a "horizontal arrangement", which means that when air flows through the evaporator 50 in a circulation direction indicated by an arrow F, the circulation direction of the air is parallel to the fins 53 in the evaporator 50. The evaporator 50 also includes a coil 54 disposed through the plurality of fins 53. Furthermore, a heating pipe (not shown) is embedded in the plurality of fins 53 of the evaporator 50, and provides heat to defrost frost condensed in the evaporator 50.

The air circulation in the horizontal refrigerator 100 includes air supply and air return, the fan unit 60 starts to suck air at one side of the evaporator 50, 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 space 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 returns from the return air microstructure of the return air cover plate to the refrigeration compartment through the return air opening and the return air channel and then returns back to the refrigeration compartment 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 is sucked by the fan unit 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 chest freezer 100 according to the first embodiment of the present invention, the cooling compartment is disposed 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 cooling compartment is flush with the top surface of the second side wall 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 cover plate 85 and the air return channel cover plate 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 space 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 refrigerating compartment, 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 can be conveniently discharged out of the refrigerating compartment, and the abnormality caused by the defrosting water sucked by the fan set 60 can be 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 toward the accommodating space 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 space 21, a space between the air duct plate 210 and the first sidewall 221 forms a refrigeration compartment, and the evaporator 50 and the fan unit 60 are disposed in the refrigeration compartment.

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 concave portion 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 interior of the refrigerating compartment. In this embodiment, the bending portion 214 bends toward the connection between the first sidewall 221 and the second sidewall 222.

The bent portion 214 of the air duct plate 210 extending toward the refrigerating compartment substantially reduces the space occupied by the refrigerating compartment, i.e., the space above the refrigerating compartment is compressed, and the evaporator 50 in the refrigerating compartment whose upper space is compressed may be a flat type evaporator to accommodate the above-mentioned space change. Due to the arrangement of the second cover plate 212 and the bent portion 214 thereof, the space utilization rate of the accommodating space 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 space 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 channel cover plate 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 channel cover plate 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 channel cover plate 202 is communicated with the first air outlet 201 and the first air outlet channel connecting hole, and an air channel between the first air outlet channel cover plate 202 and the first inner container wall 23 is a first air outlet channel; the second air outlet duct cover plate 204 is communicated with the second air outlet and the second air outlet duct connecting hole, and an air channel between the second air outlet duct cover plate 204 and the second inner container wall 24 is a second air outlet duct; 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.

A return duct cover (not shown) is disposed in the evaporation chamber, for example, and is used to communicate the return air inlet 205 and the refrigeration compartment, guide the return air into the refrigeration compartment to enter the evaporator 50, and control the return air to flow from a first end of the evaporator 50 toward a second end of the evaporator 50, where the first end is opposite to the second end. The air passage between the air return duct cover plate and the air duct plate 210 is an air return duct.

The evaporator 50 in the horizontal refrigerator 200 is arranged in a "horizontal arrangement", which means that when air flows through the evaporator 50 in a circulation direction indicated by an arrow F, the circulation direction of the air is parallel to the fins 53 in the evaporator 50 (as shown in fig. 3C). 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 to the outside of the cooling compartment, 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 cooling compartment, 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 first diversion partition and a second diversion partition corresponding to each other in the refrigeration compartment, wherein a 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 refrigerating compartment through the air return duct cover plate from the air return opening 205 of the first cover plate 211, the air in the inner container 20 is guided to the evaporator 50 by the air return duct cover plate, circulates from the first end part of the evaporator 50 toward the second end part, 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 cooling compartment 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 space 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 portion toward the accommodating space 21, the concave portion is an arc-shaped side wall 223, one end of the arc-shaped side wall 223 is connected to the bottom plate 25, and the opposite other end of the arc-shaped side wall 223 is connected to 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 space 21, a space between the air duct plate 310 and the arc-shaped side wall 223 forms a refrigerating compartment, and the evaporator 50 is arranged in the refrigerating compartment; 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 space 21.

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-out duct cover plate 302 (dotted line shows in fig. 6A) between first inner bag wall 23 and case shell 10, set up second air-out duct cover plate 304 (dotted line shows in fig. 6B) between second inner bag wall 24 and case shell 10, set up third air-out duct cover plate 308 between third inner bag wall 26 and case shell 10, first air-out duct cover plate 302 is fixed in on the inner bag wall that inner bag 20 corresponds respectively to third air-out duct cover plate, make first air-out duct cover plate 302 to third air-out duct cover plate 308 not occupy the space of accommodation space 21 of inner bag 20. Further, the first air outlet duct cover plate 302 is communicated with the first air outlet 301 and a first air outlet duct connecting hole (not shown), and an air passage between the first air outlet duct cover plate 302 and the first inner container wall 23 is a first air outlet duct; the second air outlet duct cover plate 304 is communicated with the second air outlet 303 and a second air outlet duct connecting hole (not shown), and an air passage between the second air outlet duct cover plate 304 and the second inner container wall 24 is a second air outlet duct; the third air outlet duct cover plate 308 is communicated with the third air outlet 307 and a third air outlet duct connecting hole, and an air channel between the third air outlet duct cover plate 308 and the third inner container wall 26 is a third air outlet duct; 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 cover plate, the second air outlet duct cover plate and the third air outlet duct cover plate 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 cover plates.

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 duct cover (not shown) is disposed, for example, in the refrigeration compartment for communicating the return air inlet with the refrigeration compartment, and directs return air entering the refrigeration compartment into the evaporator 50, preferably to control the flow of the return air from the first end 51 of the evaporator 50 toward the second end 52 of the evaporator 50. The air circulation channel between the air return channel cover plate and the air channel plate 310 is an air return channel.

In the refrigeration compartment 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 positioned 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 space occupied by the refrigerating compartment can be further reduced by the combined action of the arc-shaped side wall 223 and the first cover 311 which is substantially parallel to the arc-shaped side wall, and the space utilization rate of the inner container 20 is improved.

Further, the evaporator 50 in the horizontal refrigerator 300 is in a "horizontal arrangement", which means that when air flows through the evaporator 50 in a circulation direction indicated by an arrow F, the circulation direction of the air is parallel to the fins 53 in the evaporator 50 (as shown in fig. 3C). 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 refrigerating compartment through the return air duct cover plate, is treated by the evaporator 50, is sucked by the fan unit 60 again, and is 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 refrigeration compartment between the air duct plate and the arc sidewall of the concave portion, and improve the space utilization rate of the accommodating space 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 refrigeration compartment 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 space 21 of the inner container 20 to form a concave portion, the concave portion includes a first sidewall 221 and a second sidewall 222 that 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 a refrigerating compartment, and the evaporator 50' is disposed in the refrigerating compartment.

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 covers

411, 412, 413 and 414 and the first inner container wall 23 constitute a refrigerating compartment, the evaporator 50 'is installed in the refrigerating compartment, and preferably, the fan unit 60 is installed in the refrigerating compartment, and the fan unit 60 is installed above the evaporator 50'. The fan unit 60 is located above the evaporator 50 ', meaning 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 refrigeration compartment. In order to fix the fan unit 60, an extension boss 420 is provided on a side of the second cover plate 412 facing the cooling compartment, 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 space 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 '.

Because the evaporator 50' is vertically disposed in this embodiment, compared to the evaporator 50 "horizontally disposed" in the horizontal refrigerator 100, the vertical depth of the cooling compartment between the air duct plate 410 and the first inner container wall 23 in the horizontal refrigerator 400 is smaller, wherein the cooling compartment with the smaller vertical depth occupies a smaller space, thereby improving the space utilization rate of the inner container 20. The fan unit 60 is disposed in the refrigeration compartment 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 present invention, the extension boss may protrude from the air duct plate or the first liner wall 23 toward the refrigerating compartment.

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 cover plate (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 cover plate is communicated with the first air outlet channel connecting hole and the first air outlet channel 401, an air flow channel between the first air outlet channel cover plate 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 space 21 of the inner container 20 through the first air outlet port 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 cover plate (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 disposed in the refrigeration compartment. The air return channel cover plate is communicated with the air return inlet 402 and the air return channel connecting hole, the air channel between the air return channel cover plate and the bottom plate 25 is an air return channel, and the air in the accommodating space 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 returned air enters the refrigeration compartment 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 cover plate (not shown), the third air outlet is communicated with the first air outlet duct connecting hole through a third air outlet duct cover plate (not shown), the second air outlet duct cover plate is disposed between the third inner container wall 26 and the cabinet 10, the third air outlet duct cover plate is disposed between the fourth inner container wall 27 and the cabinet 10, an air channel between the second air outlet duct cover plate and the third inner container wall 26 is a second air duct, and an air channel between the third air outlet duct cover plate and the fourth inner container wall 27 is a third air duct. The 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, and then enters the accommodating space of the inner container from the first air outlet 401, the second air outlet and the third air outlet. 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 refrigeration compartment is reduced, the horizontal space occupation of the refrigeration compartment is reduced, and the space utilization rate of the accommodating space 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 space 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 forms a refrigerating compartment, and the evaporator 50 is disposed in the refrigerating compartment; wherein, the air duct plate 510 is located in the accommodating space 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 cover plate 506 is arranged between the first cover plate 511 and the evaporator 50, and a return air duct connecting hole 507 is arranged on one side of the return air duct cover plate 506 close to the second inner container wall 24; the air return duct cover plate 506 is communicated with the air return opening 505 and the air return duct connecting hole 507; the air passage between the return duct cover 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 channel cover plate 502 (shown by a dotted line in fig. 8B) is arranged between the first inner container wall 23 and the box shell 10, and a second air outlet channel cover plate 504 (shown by a dotted line in fig. 8C) is arranged between the second inner container wall 24 and the box shell 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 cover plate 502 is respectively communicated with the first air outlet 501 and the first air outlet duct connecting hole, and the second air outlet duct cover plate 504 is respectively connected with the second air outlet 503 and the second air outlet duct connecting hole; the air channel between the first air outlet channel cover plate 502 and the first liner wall 23 is a first air outlet channel, and the air channel between the second air outlet channel cover plate 504 and the second liner 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 refrigeration compartment, the fan unit 60 is disposed near the first liner wall 23, and the fan unit 60 is located above the evaporator 50 in the refrigeration compartment, 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 refrigeration compartment, the support structure is located between the first liner 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 refrigerating compartment 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 connecting hole and the second air outlet connecting hole. In this embodiment, the partition 508 is located in the cooling compartment, substantially dividing the cooling compartment into an upper region and a lower region, the upper region being a region between the partition 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 refrigerator 500 is arranged in a "horizontal arrangement", which means that when air flows through the evaporator 50 in a circulation direction indicated by an arrow F, the circulation direction of the air is parallel to the fins 53 in the evaporator 50 (as shown in fig. 3C). Heating tubes are embedded in a plurality of fins of the evaporator 50 and provide heat to defrost frost condensed in the evaporator 50.

Further, in order to facilitate the discharge of the defrosted water in the evaporator 50, the evaporator 50 is placed obliquely in the refrigerating compartment. 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 refrigeration compartment through the air return duct connecting hole 507, flows from the first end 51 of the evaporator 50 toward the second end 52, is treated by the evaporator 50, is sucked by the fan unit 60 again 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, the air duct plate is disposed 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 a refrigerating compartment for accommodating 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 refrigerating chamber 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 space of the inner container is further improved.

Claims

1. An air-cooled horizontal freezer comprising:

a cabinet housing;

the liner is embedded in the box shell and provided with an accommodating space, a first liner wall and a second liner wall which are longitudinally opposite, a third liner wall and a fourth liner wall which are transversely opposite, and the longitudinal length of the accommodating space is smaller than the transverse length; it is characterized in that the refrigerator also comprises a refrigerator body,

the cover plate is positioned in the accommodating space and divides the accommodating space into a storage chamber and a refrigeration chamber positioned between the cover plate and the inner container, and the longitudinal two ends of the cover plate are respectively connected with the first inner container wall and the second inner container wall;

an evaporator housed in the refrigeration compartment, having a vertical height less than its transverse width and less than its longitudinal width.

2. The air-cooled horizontal refrigerator of claim 1 wherein the evaporator has longitudinally opposed first and second ends, air flowing from the first end toward the second end.

3. The air-cooled horizontal freezer of claim 2, wherein the first end is relatively close to the second inner container wall and the second end is relatively close to the first inner container wall;

and a fan unit is arranged between the second end part and the first inner container wall.

4. The air-cooled horizontal refrigerator of claim 3 wherein the second end is higher than the first end;

and a water receiving box for receiving defrosting water is arranged below the evaporator, and a water outlet 71 of the water receiving box is close to the first end part and far away from the fan set.

5. The air-cooled horizontal refrigerator according to claim 3, wherein the cover plate has a second cover plate covering the evaporator and forming a top of the cover plate, a partition plate is arranged between the second cover plate and the evaporator, and the partition plate divides the refrigerating chamber into an upper air outlet duct and a lower evaporator receiving area;

air in the evaporator storage area flows into the air outlet channel through the fan unit.

6. The air-cooled horizontal refrigerator according to claim 5, wherein one longitudinal end of the air outlet duct extends to the first inner container wall and is communicated with a first air outlet duct arranged at the first inner container wall; the other longitudinal end of the air inlet pipe extends to the second inner container wall and is communicated with a second air outlet channel arranged at the second inner container wall.

7. The air-cooled horizontal refrigerator according to claim 6, wherein the first air outlet channel is communicated to the storage compartment through a first air outlet opening formed in the first inner container wall, the first air outlet opening comprises a plurality of openings arranged in a transverse direction, and the first air outlet channel extends upwards from one longitudinal end of the air outlet channel and extends to the plurality of openings towards two transverse sides.

8. The air-cooled horizontal refrigerator according to claim 6, wherein the first air outlet channel is communicated to the storage compartment through a first air outlet arranged on the first inner container wall, and the first air outlet comprises a plurality of openings arranged in a transverse direction;

the refrigerating chamber is positioned between the two openings at the two transverse ends.

9. The air-cooled horizontal refrigerator according to claim 6, wherein the first air outlet channel is communicated to the storage compartment through a first air outlet arranged on the first inner container wall, the second air outlet channel is communicated to the storage compartment through a second air outlet arranged on the second inner container wall, and the second air outlet is lower than the first air outlet.

10. The air-cooled horizontal refrigerator of claim 3 wherein the cover plate has a first cover plate disposed at one lateral side of the evaporator, the first cover plate being provided with an air return opening;

a return air duct groove is formed between the first cover plate and the evaporator, a return air duct is formed between the return air duct groove and the first cover plate, and a return air duct connecting hole is formed between the return air duct groove and the second inner container wall; air flows to the first end portion sequentially through the air return opening, the air return channel and the air return channel connecting hole.