CN111351284B

CN111351284B - Horizontal refrigerator

Info

Publication number: CN111351284B
Application number: CN201811583834.4A
Authority: CN
Inventors: 张奎; 李大伟; 廉锋; 丁剑波; 成俊亮; 徐磊
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: 2023-10-10
Anticipated expiration: 2038-12-24
Also published as: CN113108524B; CN113108524A; CN111351284A

Abstract

The invention relates to 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 a containing part, the bottom of the inner container is sunken towards the containing part 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 with a bottom plate of the inner container; the air duct plate is arranged on one side of the first side wall; the air duct plate is positioned in the accommodating part, the inner container is provided with a first inner container wall, the first inner container wall extends upwards from the bottom plate, and a space between the air duct plate and the first inner container wall forms an evaporator chamber. In the horizontal refrigerator provided by the invention, the evaporator chamber is formed between the first liner wall of the liner and the air duct plate, and the vertically arranged evaporator is hung on the first liner wall of the liner, so that the installation steps of the evaporator are simplified, the longitudinal depth of the evaporator chamber is reduced, the transverse space occupation of the evaporator chamber is reduced, and the space utilization rate of the accommodating part of the liner is improved.

Description

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 for keeping constant low temperature, is an electrical appliance for preserving food or other articles at low temperature and is widely applied to the fields of business and household.

At present, the refrigeration principle of the horizontal refrigerator is generally divided into a direct-cooling horizontal refrigerator and an air-cooling horizontal refrigerator, wherein the direct-cooling horizontal refrigerator is easy to cause the problem of frost formation in the refrigerator in the use process, and the air-cooling horizontal refrigerator is favored by users because of the frostless advantage. In the horizontal freezer of forced air cooling, blow into inside the freezer through the cold air to deposit the article refrigeration in the freezer, however, because cold air proportion is great, easily gathers in the freezer bottom, like this, bottom temperature is low in messenger's freezer, and top temperature is high, and temperature distribution is inhomogeneous, and then influences the quality of depositing article.

In addition, the arrangement mode of the middle evaporator of the existing air-cooled horizontal refrigerator has great influence on refrigeration effect, user experience and the like, for example, the evaporator is arranged too close to the glass door body of the air-cooled horizontal refrigerator, so that more space is occupied on one hand, the top of an air duct where the evaporator is located is too close to the glass door body, the outer surface of the glass door body is easy to condense, and the top of the air duct is easy to frost.

The horizontal refrigerator is longer in width direction or transverse direction, and the supply-air outlet and the return air in current wind channel are often set up in the position that is close to horizontal refrigerator's left surface and right flank after for supply-air distance extension is difficult to the box opposite, if air outlet and return air inlet set up in same side (left surface or right flank, then box cavity mid portion amount of wind is less, causes the incasement temperature inhomogeneous.

In view of the above, the invention provides a horizontal air-cooled refrigerator, which overcomes the problems existing 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 difficult to dew on a glass door body above an inner container by changing the setting position of an evaporator and a circulating mode of air 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 a containing part, the bottom of the inner container is sunken towards the containing part 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 with a bottom plate of the inner container; the air duct plate is arranged on one side of the first side wall; the air duct plate is positioned in the accommodating part, the inner container is provided with a first inner container wall, the first inner container wall extends upwards from the bottom plate, and a space between the air duct plate and the first inner container wall of the inner container forms an evaporator chamber.

As an optional technical scheme, the air conditioner further comprises an evaporator, wherein the evaporator is arranged in the evaporator chamber and is combined with the first liner wall.

As an alternative technical scheme, one side of the evaporator facing the first liner wall is provided with a hook, the first liner wall is provided with a mounting hole, and the hook is clamped into the mounting hole, so that the evaporator is combined on the first liner wall.

As an alternative solution, the evaporator is arranged vertically.

As an optional technical scheme, the evaporator further comprises a fan set, wherein the fan set is arranged in the evaporator chamber, and the fan set is arranged above the evaporator.

As an alternative technical solution, the air duct plate is provided with an extension boss, the extension boss extends from the air duct plate towards the evaporator chamber, and the fan set is fixed on the extension boss.

As an optional technical scheme, the air duct board comprises a first cover board and a second cover board which are connected with each other, the first cover board is parallel and opposite to the bottom board, the second cover board is parallel and opposite to the first liner wall, the extension boss is arranged on the second cover board, and the extension boss extends towards the first liner wall.

As an alternative technical scheme, the extension boss is provided with an inclined plane, and the fan set is fixed on the inclined plane, so that the upper side of the fan set is inclined towards the first liner wall.

As an alternative technical scheme, the fan set is a centrifugal fan.

As an optional technical scheme, the air conditioner further comprises an air outlet and an air return opening, wherein the air outlet is arranged on the first liner wall, the air return opening is arranged on the bottom plate, and the air return opening is positioned on one side of the bottom plate, which is close to the second liner wall; the second liner wall is opposite to the first liner wall, and extends upwards from one side of the bottom plate away from the first liner wall.

Compared with the prior art, in the horizontal refrigerator provided by the invention, the vertically arranged evaporator is hung on the first side wall of the inner container, so that the installation steps of the evaporator are simplified, the longitudinal depth of the evaporator chamber is reduced, the transverse space occupation of the evaporator chamber is reduced, and the space utilization rate of the accommodating part of the inner container is improved. In addition, through the design of air outlet and return air inlet, shortened the distance of air-out and return air, effectively maintain the temperature equilibrium in the inner bag, avoid glass door body dewfall.

The invention will now be described in more detail with reference to the drawings and specific examples, which are not intended to limit the invention thereto.

Drawings

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

Fig. 2 is a schematic diagram of the horizontal refrigerator of fig. 1 after the liner and the casing are disassembled.

Fig. 3A is an exploded view of the horizontal refrigerator of fig. 1.

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

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

Fig. 5A to 5C are schematic cross-sectional views of a horizontal refrigerator according to a second embodiment of the present 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 in a fourth embodiment of the present invention.

Fig. 7B and fig. 7C are schematic cross-sectional views of a horizontal refrigerator according to a fourth embodiment of the invention at different viewing angles.

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

Fig. 7F is a schematic cross-sectional view of an evaporator of a horizontal refrigerator in a fourth embodiment of the present invention.

Fig. 8A is a schematic top view of a horizontal refrigerator in 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

The present invention will be described in further detail with reference to the following examples and drawings, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of 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 refrigerator of FIG. 1 after the liner and the casing are disassembled; fig. 3A is an exploded view of the horizontal cooler of fig. 1;

FIG. 3B is an enlarged schematic view of the area a in FIG. 3A; fig. 4A to 4C are schematic cross-sectional views of the horizontal refrigerator of fig. 1 at different viewing angles.

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

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

The recess 22 further includes a second sidewall 222, where the second sidewall 222 is perpendicular to the first sidewall 221, i.e. a right angle structure is formed between the first sidewall 221 and the second sidewall 222, and preferably, the first sidewall 221 is perpendicular to the bottom plate 25, for example, one end of the first sidewall 221 is perpendicularly connected to an edge of the bottom plate 25; the second side wall 222 is perpendicular to the third liner wall 26 of the liner 20, and one end of the second side wall 222 is perpendicularly connected to the lower edge of the third liner wall 26. In the present embodiment, the recess 22 is a right-angle step structure formed by bending the bottom plate 25 toward the accommodating portion 21, but not limited thereto. In other embodiments of the present invention, the first sidewall 221 of the recess 22 can be bent from the bottom plate 25 toward the accommodating portion 21, the second sidewall 222 can be bent from the third liner wall 26 toward the accommodating portion, and the first sidewall 221 and the second sidewall 222 are connected to each other by intersecting in the accommodating portion 21

The duct board 30 includes a first cover plate 31 and a second cover plate 32, the first cover plate 31 and the second cover plate 32 are perpendicular to each other, for example, the first cover plate 31 is parallel to and opposite to the first side wall 221 of the recess 22, and a top surface of the second cover plate 32 is flush with a top surface of the second side wall 222 of the recess 22. The space among the first sidewall 221, the first cover plate 31 and the second cover plate 32 is an evaporator chamber, and the evaporator 50 is disposed in the evaporator chamber. The bottom plate 25 of the liner 20 is provided with a mounting groove (not shown) corresponding to a region of the evaporator chamber so that the evaporator 50 can be positioned in the mounting groove. Of course, for convenience of installation, the evaporator 50 and the fan set 60 may be assembled to a mounting plate (not shown) in advance, the mounting plate is fixed in the mounting groove by screw locking or the like, and the fan set 60 is located between the evaporator chamber and the first liner wall 23 of the liner 20. The fan assembly 60 may also include a housing assembly that fills the gap between the evaporator chamber and the first liner wall 23.

In the present embodiment, the air duct board 30 is provided with a fixing hole, and the fixing member passes through the fixing hole to fixedly couple the air duct board 30 to the liner 20, but not limited thereto. In other embodiments of the present invention, the air duct board 30 may be integrally formed with the recess 22 of the liner 20, that is, the air duct board 30 may be formed by bending the second side wall 222 of the recess 22 toward the bottom plate 25 after extending toward the accommodating portion 21. Preferably, the material of the air duct board 30 may be the same as that of the liner 20.

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

The first liner wall 23 is provided with a plurality of groups of air outlets, the second liner wall 24 is provided with a plurality of groups of air return openings, the plurality of groups of air outlets are used for sending out air treated by the evaporator 50 to the accommodating part 21 of the liner 20, and the plurality of groups of air return openings are used for returning air in the accommodating part 21 of the liner 20 to the evaporator chamber and treating the air again by the evaporator 50; the above-described supply and return processes are considered to be the air circulation of the horizontal cooler 100.

With continued reference to fig. 3A, the plurality of sets of air outlets on the first liner wall 23 include a first air outlet 231, a second air outlet 232, a third air outlet 233 and a fourth air outlet 234, where the first air outlet 231 is disposed near the upper edge of the first liner wall 23 and includes a plurality of air outlet openings arranged along the transverse direction of the first liner 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 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 in the middle 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 arranged 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 arranged on one side of the first liner wall 23 close to the third liner wall 26, and the fourth air outlet 234 is positioned on the upper side of the second side wall 222 of the concave part 22; wherein, the plurality of air outlet holes penetrate through the first liner wall 23 respectively. In the embodiment, the number of the air outlet openings of the second air outlet 232 is smaller than the number of the air outlet openings 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 sets of air return openings comprise 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 comprises a plurality of air return openings, the air return openings are transversely arranged along the second liner wall 24, and the middle of the second liner wall 24 is positioned 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 transversely arranged 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 extend through the second liner wall 24, respectively. In this embodiment, due to the recess 22, the number of the return air openings in the second return air opening 242 is smaller than the number of the return air openings in the first return air opening 241.

The first liner wall 23 and the second liner wall 24 are both liner walls extending along the width direction or the transverse direction of the horizontal refrigerator 100, and the third liner wall 26 and the fourth liner wall 27 are both liner walls extending along the length direction or 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 liner wall 23 and the second liner wall 24 are respectively disposed on the pair of long sides, and the third liner wall 26 and the fourth liner wall 27 are respectively disposed on the pair of short sides. Since the bottom plate 25 of the liner 20 is bent to form the recess 22, the maximum lengths of the first liner wall 23 and the second liner wall 24 are respectively greater than the lengths of the third liner wall 26 and the fourth liner wall 27. The air outlet and the air return opening are arranged on the two opposite side walls extending transversely of the horizontal refrigerator 100, so that the air supply distance is shortened, and the temperature balance of each area in the liner 20 is facilitated.

In addition, a food basket (not shown) is generally disposed in the horizontal refrigerator 100, and is placed on the upper layer of the accommodating portion 21, preferably, the upper first air outlet 231 of the first liner wall 23 is higher than the upper edge of the food basket, and the middle second air outlet 232 of the first liner wall 23 is parallel to or slightly lower than the lower edge of the food basket. In order to avoid the food basket blocking the wind circulation at the return air, the first return air opening 241 in the middle of the second liner wall 24 is lower than the lower edge of the food basket. In order to take account of the temperature of each region in the accommodating portion 21, a third air outlet 233 is additionally provided at a corner of the lower edge of the first liner wall 23 near the fourth liner wall, and a fourth air outlet 234 is additionally provided at a position of the first liner wall 23 near the second sidewall 222 of the recess 22, so that a region where the accommodating portion 21 has an air outlet dead angle is avoided.

Further, the first liner wall 23 is further provided with an air outlet connection hole 235, the second liner wall 24 is provided with an air return connection hole 243, the air outlet connection hole 235 and the air return connection hole 243 are respectively communicated with the evaporator chamber, wherein the fan set 60 is close to the air outlet connection hole 235, and the fan set 60 is, for example, a centrifugal fan or an axial flow fan.

An air outlet channel 85 is arranged between the first liner wall 23 and the box shell 10, an air return channel 86 is arranged between the second liner wall 24 and the box shell 10, wherein the air outlet channel 85 is respectively communicated with a plurality of groups of air outlets and air outlet channel connecting holes 235, the air return channel 86 is respectively communicated with a plurality of groups of air return outlets and air return channel connecting holes 243, an air channel between the air outlet channel 85 and the first liner wall 23 is an air outlet channel, and an air channel between the air return channel 86 and the second liner wall 24 is an air return channel. Air sent by the fan set 60 enters the air outlet channel from the air outlet channel connecting hole 235 and then enters the accommodating part 21 of the inner container 20 through the plurality of groups of air outlets, the air in the accommodating part 21 of the inner container 20 is sucked by the fan set 60 from the air return port, passes through the air return channel and then enters the evaporator chamber 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 85 is fixed on the side of the first liner wall 23 facing the case 10, the air return channel 86 is fixed on the side of the second liner wall 24 facing the case 10, and the foaming layer 90 is filled between the liner 20 and the case 10, so that the air outlet channel 85 and the air return channel 86 are in the foaming layer.

The accommodating portion 21 of the liner 20 is further provided with a plurality of groups of air outlet cover plates, the plurality of groups of air outlet cover plates are in one-to-one correspondence with the plurality of groups of air outlets, the plurality of groups of air outlet cover plates are respectively provided with air outlet microstructures for adjusting the air output of the air outlets and the air supply direction, the air outlet microstructures are in one-to-one correspondence with the air outlet openings, and the air outlet microstructures comprise, but are not limited to, openings, slots and the like penetrating through the air outlet cover plates. The air outlet cover plate can be combined on the first liner wall 23 by welding, fastening, screw locking and the like, but is not limited thereto. In other embodiments of the present invention, the plurality of sets of air outlet cover plates and the liner wall may be integrally formed, and the air outlet cover plates (or the liner wall) are hollowed out at positions corresponding to the plurality of sets of air outlets to form an air outlet microstructure, so as to realize adjustment of the air volume and the air direction of the air outlets.

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

The air-out microstructure on the first air-out cover plate 81 is, for example, a plurality of air-out micro holes 811, the air-out micro holes 811 penetrate through the first air-out cover plate 81, and the air-out micro holes 811 penetrate through the first air-out cover plate 81 obliquely, that is, along the thickness direction of the first air-out cover plate 81, the air-out micro holes 811 extend obliquely upwards from the outer side surface of the first air-out cover plate 81 towards the inner side surface of the first air-out cover plate 81 and penetrate through the first air-out cover plate 81 so as to realize downward air supply of the first air-out cover plate 81. Wherein the outer side surface faces the second liner wall 24 and the inner side surface faces the first liner wall 23, opposite the inner side surface. The air outlet micropores 811 may be openings in the shape of a hexagon, a circle, an ellipse, a quadrangle, or the like. Of course, the air outlet micro holes 811 for realizing the downdip air supply may be similarly provided in the second air outlet cover 82, the third air outlet cover 87, and the fourth air outlet cover 88. The air flow is conveyed to the bottom of the refrigerator in a downward-inclined air supply mode, and circulation of the air flow at the bottom of the refrigerator is facilitated.

In order to realize downtilt air supply, in other embodiments of the present invention, an air outlet grille may be disposed at air outlets of the plurality of air outlet cover plates, and gate blades of the air outlet grille are inclined towards the bottom of the liner. In addition, the air outlet grille and the air outlet micropores can be simultaneously arranged on the air outlet cover plate.

The second liner wall 24 of the liner 20 is further provided with a plurality of sets of return air cover plates (not shown), the sets of return air cover plates are in one-to-one correspondence with the sets of return air inlets, and the return air cover plates are provided with return air microstructures for adjusting the return air quantity and the return air direction, and the return air microstructures include, but are not limited to, holes, slots and the like penetrating through the return air cover plates. The return air cover plate can be coupled to the second liner wall 24 by means of a fastener or a screw, but is not limited thereto. In other embodiments of the present invention, the plurality of sets of return air cover plates and the inner container wall may be integrally formed, and the return air cover plates (or the inner container wall) are hollowed out at the corresponding return air positions to form a return air microstructure, so as to realize the adjustment of 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 second 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, which is similar to the air outlet microstructure, and the description of the air return microstructure may refer to the description of the air outlet microstructure, which is not repeated. Of course, according to the actual requirement, the shape, the inclination direction and the like of the open holes and the grooves of the return air microstructure can be changed to obtain the best return air result.

As can be seen from fig. 3A to 4A, in the horizontal refrigerator 100, the evaporator 50 is located in the middle of the evaporator chamber, the evaporator 50 includes a first end 51 and a second end 52, the first end 51 is close to the second liner wall 24, the second end 52 is close to the fan set 60, and the fan set 60 is close to the first liner wall 23, wherein the first end 51 is lower than the second end 52, i.e. 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 liner wall 24, so that the defrost water in the evaporator 50 flows from the second end 52 towards the first end 51, which is convenient for the defrost water to drain, and avoids the defrost water being inhaled and frozen when the fan set 60 rotates, which causes 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 51, and the water outlet 71 is arranged on one side, away from the fan set 60, of the water receiving box 70, so that the fan set 60 can be prevented from being frozen by water vapor and cannot work normally due to the fact that the fan set 60 sucks air mixed with defrosting water or other water vapor into the fan set 60 directly.

Further, a top heat insulating layer 41 and a bottom heat insulating layer 42 are respectively arranged on the upper side and the lower side of the evaporator 50, the top heat insulating layer 41 is arranged between the air duct board 30 and the evaporator 50, and the shape of the top heat insulating layer 41 is similar to that of the air duct board 30; the bottom insulation 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 surfaces of the top insulating layer 41 and the bottom insulating layer 42 facing the evaporator 50 are inclined structures, and the inclined structures gradually extend upwards from one end close to the second liner wall 24 toward the other end close to the first liner wall 23; the evaporator 50 is supported in the ramp configuration described above 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 inclined structures on the top insulation layer 41 and the bottom insulation layer 42 is a preferred embodiment, but not limited to. In other embodiments of the invention, a support may be provided on the floor of the liner such that the second end of the evaporator near the fan assembly is higher than the first end of the evaporator remote from the fan.

In the horizontal refrigerator 100, the evaporator 50 is in a "horizontal arrangement" which means that the direction of air flow is parallel to the fins in the evaporator 50 as the air flows through the evaporator 50. The evaporator 50 also includes a coil tube threaded into the plurality of fins. In addition, heating pipes (not shown) are also embedded in the plurality of fins of the evaporator 50, and the heating pipes provide heat to perform a defrosting operation on frost condensed in the evaporator 50.

The air circulation in the horizontal refrigerator 100 comprises air supply and air return, the fan set 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 holes 235, and then is sent out from the air outlet microstructures of the air outlet ports and the air outlet cover plates to enter the accommodating part 21 of the liner 20; under the suction force generated by the fan set 60, the air in the liner 20 is returned from the return air microstructure of the return air cover plate to the evaporator chamber through the return air opening and the return air channel and then through the return air channel connecting hole 243, and flows from the first end 51 of the evaporator 50 to the second end 52, so that the return air is sucked again by the fan set 60 and sent out after being treated. In this embodiment, when the horizontal refrigerator 100 is in use, the first liner wall 23 is located at a side far from the user, i.e. the first liner wall 23 can be regarded as the back side of the horizontal refrigerator 100, and the second liner wall 24 is located at a side close to the user, i.e. the second liner wall 24 can be regarded as the front side of the horizontal refrigerator 100, so the above-mentioned air circulation can be regarded as the circulation of back-side air outlet and front-side return air.

In the horizontal refrigerator 100 provided in the first embodiment of the present invention, the evaporator chamber is provided at one side of the recess 22 (or the step), and the top surface of the second cover plate 32 of the air duct plate 30 constituting the evaporator chamber is flush with the top surface of the second side wall 222 of the recess 22; the inner container 20 is provided with a plurality of air outlets and air return inlets on the opposite inner container walls respectively, so that the distance between the air outlets and the air return is shortened, and the temperature balance inside the inner container can be effectively maintained; the air outlet channel 85 and the air return channel 86 are arranged in the foaming layer 90 between the liner 20 and the case 10, so that the storage space in the accommodating part 21 of the liner 20 is not occupied, and the space utilization rate is improved; in addition, the evaporator 50 is horizontally disposed in the evaporator chamber, and the second end 52 of the evaporator 50 near the fan set 60 is higher than the first end 51, so that the defrosting water is conveniently discharged out of the evaporator chamber, and the abnormality caused by the suction of the defrosting water by the fan set 60 is avoided.

In fig. 5A to 5C, elements with the same reference numerals as those in fig. 1 to 4C have similar functions, and are not described herein again.

The horizontal refrigerator 200 in the second embodiment is different from the horizontal refrigerator 100 in the first embodiment in that 1) the structure of the air duct plate 210 in the horizontal refrigerator 200 is different; 2) The setting positions of the air return ports 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 liner 20 of the horizontal refrigerator 200 is recessed toward the accommodating portion 21 to form a recess 22 (as shown in fig. 2), the recess 22 has a first sidewall 221 and a second sidewall 222 perpendicular to each other, the first sidewall 221 is vertically connected to the bottom plate 25 of the liner 20, the air duct plate 210 is disposed near the first sidewall 221, the air duct plate 210 is disposed in the accommodating portion 21, a space between the air duct plate 210 and the first sidewall 221 forms an evaporator chamber, and the evaporator 50 and the fan set 60 are disposed in the evaporator chamber.

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

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

The bend 214 in the duct plate 210 extending toward the interior of the evaporator chamber substantially reduces the space occupied by the evaporator chamber, i.e., the space above the evaporator chamber is compressed, and the evaporator 50 in the evaporator chamber with the compressed upper space can be a flat evaporator to accommodate the above-mentioned space variation. The space utilization of the accommodating portion 21 of the liner 20 of the horizontal refrigerator 200 can be significantly improved due to the arrangement of the second cover plate 212 and the bending portion 214 thereof.

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, wherein 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, the first air outlet 201 is located at the upper edge of the first inner container wall 23, and the second air outlet 203 is located in the middle or upper middle of the second inner container wall 24, so that 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 comprises a plurality of first air outlet openings, the first air outlet openings penetrate through the first liner wall 23, and the first air outlet openings are arranged along the transverse direction of the first liner wall 23; similarly, the second air outlet 203 includes a plurality of second air outlet openings, which penetrate the second liner wall 24, and are arranged along the lateral direction of the second liner wall 24. The first liner wall 23 is provided with a first air outlet duct connecting hole (not shown), and the second liner wall 24 is provided with a second air outlet duct connecting hole (not shown).

If a food basket (not shown) is provided in the liner 20, the first air outlet 201 is higher than the upper edge of the food basket; the second air outlet 203 is slightly below 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, and the air outlet cover plates are located in the accommodating portion 21, where the air outlet cover plates respectively correspond to the first air outlet 201 and the second air outlet 203 one by one, and the air outlet cover plates include air outlet micropores (which may refer to the description of the air outlet micropores 811 in the first embodiment of the present invention), and the air outlet micropores extend obliquely upward from an outer side surface of the air outlet cover plate to an opposite inner side surface of the air outlet cover plate, and penetrate through the air outlet cover plates. By the design of the air outlet micro-holes, the downdip air outlet of the air outlets can be enabled to be directed towards the bottom of the liner 20. Of course, the air outlet micropores can also be replaced by the design of the air outlet grating.

A first air outlet channel 202 (shown by a dotted line in fig. 5A) is arranged between the first liner wall 23 and the case 10, a second air outlet channel 204 (shown by a dotted line in fig. 5B) is arranged between the second liner wall 24 and the case 10, wherein the first air outlet channel 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 202 and the first liner wall 23 is a first air outlet channel; the second air outlet channel 204 is communicated with the second air outlet and the second air outlet channel connecting hole, and an air channel between the second air outlet channel 204 and the second liner wall 24 is a second air outlet channel; preferably, the first air outlet connection hole is located in the middle of the first liner wall 23, the second air outlet connection hole is located at the lower edge of the second liner wall 24, and the lower edge of the second liner 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, where the lower edge of the first inner container wall 23 is close to the bottom plate 25; the second air outlet duct connecting hole may also be located in the middle of the second liner wall 24.

A return air duct (not shown) is disposed in the evaporation chamber, for example, for communicating the return air inlet 205 with the evaporation chamber, guiding the return air into the evaporation chamber to enter the evaporator 50 respectively, and controlling the return air to circulate from the first end of the evaporator 50 toward the second end of the evaporator 50, wherein the first end is opposite to the second end. Wherein the air passage between the return air duct groove and the air duct plate 210 is a return air duct.

The evaporator 50 in the horizontal freezer 200 is "horizontally disposed" which means that the direction of air flow is parallel to the fins in the evaporator 50 as the air flows through the evaporator 50. A heating pipe is embedded in the plurality of fins of the evaporator 50, and the heating pipe provides heat to defrost frost condensed in the evaporator 50. In this embodiment, to facilitate the drainage of defrost water out of the evaporator chamber, the second end of the evaporator 50 near the fan assembly 60 is lower than the first end of the evaporator 50 remote from the fan assembly 60.

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

When the fan set 60 sends air, the sucked air is split into the first air outlet channel connecting hole of the first liner wall 23 through the first split flow channel 1 and split into the second air outlet channel connecting hole of the second liner wall 24 through the second split flow channel 2. The first and second flow dividing channels 1 and 2 may be formed by providing corresponding first and second flow dividing partitions in the evaporator chamber, for example, wherein a space between the first flow dividing partition and the first sidewall 221 is the first flow dividing channel 1; the space between the second separator and the second sidewall 222 is the second separator 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 pipe structure, an air inlet of the pipe structure is communicated with the fan set, and an air outlet of the pipe structure is communicated with the first air outlet channel connecting hole or the second air outlet channel connecting hole.

The air circulation of the horizontal refrigerator 200 comprises air supply and air return, after the fan set 60 works, the air at one side of the evaporator 50 is sucked into the first diversion channel 1 and the second diversion channel 2 which are communicated with the first air outlet connecting hole and the second air outlet connecting hole by the fan set 60, and respectively enters the first air outlet and the second air outlet through the first air outlet connecting hole and the second air outlet connecting hole; then the air is supplied into the inner container 20 through the corresponding first air outlet 201 and the second air outlet 203; the air in the liner 20 is guided into the evaporator chamber from the return air inlet 205 of the first cover plate 211 through the return air duct groove, the return air duct groove guides the air in the liner 20 to the evaporator 50, flows from the first end portion toward the second end portion of the evaporator 50, and is sucked again by the fan set 60 and sent out. When the horizontal refrigerator 200 is in use, the first liner wall 23 is located at a side far from the user, i.e. the first liner wall 23 can be regarded as a back side of the horizontal refrigerator 100, the second liner wall 24 is located at a side near the user, i.e. the second liner 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 air circulation can be regarded as back side and front side air outlet and bottom return 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 bending portion 214, and the bending portion 214 reduces the occupied space of the evaporator chamber between the air duct plate 210 and the first sidewall 221 of the recess 22, thereby improving the space utilization of the accommodating portion 21 of the liner 20. In addition, through the design of air outlet and return air inlet, also provided the inner bag wall and supplied air simultaneously in both sides relatively, the inner bag is close to the wind circulation of bottom return air.

In fig. 6A to 6C, elements with the same reference numerals as those in fig. 1 to 4C have similar functions, and are not described herein again.

The horizontal refrigerator 300 provided in the third embodiment of the present invention is different from the horizontal refrigerator 100 provided in 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 board 310 is different from that of the air duct board 30; 3) The circulation of wind in the liner 20 is different.

Specifically, a concave portion is formed at the bottom of the inner container 20 of the horizontal refrigerator 300 toward the accommodating portion 21, the concave portion is an arc-shaped side wall 223, one end of the arc-shaped side wall 223 is connected with the bottom plate 25, and the opposite end of the arc-shaped side wall 223 is connected with the third inner container wall 26; the air duct plate 310 is disposed at one side of the arc-shaped sidewall 223 and is located in the accommodating portion 21, a space between the air duct plate 310 and the arc-shaped sidewall 223 constitutes an evaporator chamber in which the evaporator 50 is disposed; preferably, the arc-shaped side wall 223 has a slope, and the evaporator 50 is coupled to the slope of the arc-shaped side wall 223.

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

The air duct board 310 comprises a first cover board 311, a second cover board 312 and a third cover board 313, wherein the first cover board 311 is approximately parallel to the inclined extension area of the arc-shaped side wall 223, two ends of the second cover board 312 are respectively connected with the first cover board 311 and the bottom board 25 of the liner 20, and an included angle between the second cover board 312 and the first cover board 311 is an obtuse angle; the third cover plate 313 connects the first cover plate 311 and the third liner wall 26, and an included angle between the third cover plate 313 and the first cover plate 311 is also an obtuse angle. Wherein, since the first cover plate 311 is substantially parallel to the obliquely extending area of the arc-shaped sidewall 223, that is, the first cover plate 311 may also be regarded as an obliquely extending cover plate.

The liner 20 comprises a first liner wall 23 and a second liner wall 24 which are opposite to each other, a first air outlet 301 is arranged on the first liner wall 23, and a second air outlet 303 is arranged on the second liner wall 24, wherein the first air outlet 301 is positioned at the upper edge of the first liner wall 23, and the second air outlet 303 is positioned in the middle or upper middle of the second liner 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 simultaneously discharging air to interfere 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 liner wall 23, and the plurality of first air outlet openings are arranged along the transverse direction of the first liner wall 23; similarly, the second air outlet 303 includes a plurality of second air outlet openings, the plurality of second air outlet openings penetrate the second liner wall 24, and the plurality of second air outlet openings are arranged along the lateral direction of the second liner wall 24. In addition, a third air outlet 307 is provided on the third liner wall 26 of the liner 20, the third liner wall 26 is located between the first liner wall 23 and the second liner wall 24, and the air outlet position of the third air outlet 307 is slightly lower than the first air outlet 301 (as shown in fig. 6C).

If a food basket (not shown) is provided in the liner 20, the first air outlet 301 is higher than the upper edge of the food basket; the second air outlet 303 and the third air outlet 307 are respectively slightly lower than the lower edge of the food basket. In addition, the air outlet sides of the first air outlet 301, the second air outlet 303 and the third air outlet 307 may be respectively provided with an air outlet cover plate, and the air outlet cover plate includes air outlet micropores (refer to the description of the air outlet micropores 811 in the first embodiment of the present invention), and the air outlet micropores extend obliquely upwards 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 downdip air outlet of the air outlets can be enabled to be directed towards the bottom of the liner 20. Of course, the air outlet micropores can also be replaced by the design of the air outlet grating.

A first air outlet channel 302 (shown by a dotted line in fig. 6A) is disposed between the first liner wall 23 and the casing 10, a second air outlet channel 304 (shown by a dotted line in fig. 6B) is disposed between the second liner wall 24 and the casing 10, a third air outlet channel 308 is disposed between the third liner wall 26 and the casing 10, and the first air outlet channel 302 to the third air outlet channel are respectively fixed on the liner walls corresponding to the liner 20, so that the first air outlet channel 302 to the third air outlet channel 308 do not occupy the space of the accommodating portion 21 of the liner 20. Further, the first air outlet channel 302 is communicated with the first air outlet 301 and a first air outlet channel connecting hole (not shown), and an air channel between the first air outlet channel 302 and the first liner wall 23 is a first air outlet channel; the second air outlet channel 304 is communicated with the second air outlet 303 and a second air outlet channel connecting hole (not shown), and an air channel between the second air outlet channel 304 and the second liner wall 24 is a second air outlet channel; the third air outlet channel 308 is communicated with the third air outlet 307 and the third air outlet channel connecting hole, and an air channel between the third air outlet channel 308 and the third liner wall 26 is a third air outlet channel; the first air outlet duct connecting hole, the second air outlet duct connecting hole and the third air outlet duct connecting hole may be disposed on the first liner wall 23, the second liner wall 24 and the third liner 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 liner wall of the liner, and at this time, the structures of the first air duct outlet slot, the second air duct outlet slot and the third air duct outlet slot are correspondingly improved, so as to achieve the effect that one air duct outlet connecting hole supplies air to a plurality of air duct outlet slots simultaneously.

In addition, an air flow passage formed between the third cover plate 313 and the corresponding partial arc-shaped side wall 223 serves to communicate the above-described first to third air duct connection holes.

The return air inlet 305 is disposed on the second cover plate 312, and preferably, the return air inlet 305 is disposed at 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 inlet 305 includes, for example, a plurality of return air openings extending through the second cover plate 312 and longitudinally aligned along the surface of the second cover plate 312. A return duct slot (not shown) is provided in the evaporator chamber for communicating the return air inlet with the evaporator chamber, the return duct slot directing return air entering the evaporator chamber into the evaporator 50, preferably controlling the circulation of return air from the first end 51 of the evaporator 50 towards the second end 52 of the evaporator 50. Wherein the air circulation channel between the return air channel groove and the air channel plate 310 is a return air channel.

In the evaporator chamber of the horizontal refrigerator 300, a fan set 60 and an evaporator 50 are sequentially arranged on the surface of the arc-shaped side wall 223, the fan set 60 is located above the evaporator 50, the fan set 60 is close to an air outlet duct connecting hole formed in 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.

Because the arcuate sidewall 223 is of a sloped configuration, the evaporator 50 is disposed substantially against the arcuate sidewall 223 such that the second end 52 of the evaporator 50 proximate the fan set 60 is higher than the first end 51 of the evaporator 50 distal the fan set 60 by the arcuate sidewall 223. At this time, the arc-shaped side wall 223 functions similarly to the function of the top insulation layer 41 and the bottom insulation layer 42 having the slope structure in the horizontal refrigerator 100 of the first embodiment of the present invention, that is, maintains the inclination of the evaporator 50. In addition, the cooperation of the arc-shaped side wall 223 and the first cover plate 311 substantially parallel thereto can further reduce the space occupied by the evaporator chamber, and improve the space utilization of the liner 20.

In addition, the evaporator 50 in the horizontal refrigerator 300 is arranged in a horizontal manner, and the horizontal arrangement means that the air flowing direction is parallel to the fins in the evaporator 50 when the air flows through the evaporator 50. A heating pipe is embedded in the plurality of fins of the evaporator 50, and the heating pipe provides 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 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 can be one or more) respectively, and then enters the liner 20 through the corresponding first air outlet channel 301, the second air outlet channel 303 and the third air outlet channel 307; the air in the liner 20 is returned from the return air inlet 305, enters the evaporator chamber through the return air duct groove, and is sucked again by the fan set 60 and sent out after the evaporator 50 processes the returned air. In this embodiment, the first liner wall 23 is located, for example, away from the user, on the back side of the horizontal refrigerator 200; the second liner wall 24 is positioned, for example, adjacent the user, on the front side of the chest freezer 200; the third liner wall 26 is, for example, located on the right side of the user; the return air inlet 205 in the second cover plate 312 is adjacent to the floor 25 of the liner 20. The above-mentioned air circulation process can be regarded as that the back side, front side and right side are simultaneously supplied with air and the bottom is returned with air.

In the horizontal refrigerator 300 according to the third embodiment of the present invention, the side wall of the concave portion of the liner 20 is provided with an arc-shaped side wall, the first cover plate of the air duct plate is approximately parallel to the arc-shaped side wall, and the evaporator is combined on the inclined structure of the arc-shaped side wall, so that the occupied space of the evaporator chamber between the air duct plate and the arc-shaped side wall of the concave portion is further reduced, and the space utilization rate of the accommodating portion 21 of the liner 20 is improved. In addition, through the design of air outlet and return air inlet, also provided the inner bag wall and supplied air simultaneously in both sides and the right side three sides, the inner bag is close to the wind circulation of bottom return air.

Fig. 7A is a schematic top view of a horizontal refrigerator in a fourth embodiment of the present invention; fig. 7B and fig. 7C are schematic cross-sectional views of a horizontal refrigerator according to a fourth embodiment of the invention at different viewing angles; fig. 7D and 7E are schematic views of an air duct board of a horizontal refrigerator according to a fourth embodiment of the present invention; fig. 7F is a schematic cross-sectional view of an evaporator of a horizontal refrigerator in a fourth embodiment of the present invention. Elements in fig. 7A to 7E that are the same as those in fig. 1 to 4C have similar functions, and are not described in detail.

As shown in fig. 7A to 7F, a horizontal refrigerator 400 is provided in the 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 arrangement position and structure of the air duct board 410 are different; 2) The evaporator 50' in the evaporator chamber is a "vertical arrangement"; 3) The evaporator 50' is assembled differently from the liner 20.

Specifically, the horizontal refrigerator 400 includes a liner 20, a bottom of the liner 20 is recessed toward a receiving portion 21 of the liner 20 to form a recess 22, the recess 22 includes a first sidewall 221 and a second sidewall 222 perpendicular to each other, one end of the first sidewall 221 is vertically connected to a bottom plate 25, and the second sidewall 222 is vertically connected to a third liner wall 26 of the liner 20; the air duct plate 410 is disposed at one side of the first sidewall 221, and a space between the air duct plate 410 and the first liner wall 23 of the liner 20 constitutes an evaporator chamber in which the evaporator 50' is disposed.

In this embodiment, the air duct board 410 includes a first cover 411, a second cover 412, a third cover 413 and a fourth cover 414, one end of the first cover 411 is vertically connected with the second cover 412, the opposite end of the first cover 411 is combined with the first liner wall 23 of the liner 20, the second cover 412 is parallel to the first liner wall 23, the third cover 413 is parallel to and opposite to the fourth cover 414, and the third cover 413 and the fourth cover 414 are respectively combined with the first cover 411 and the second cover 412. The spaces between the first cover 411, the second cover 412, the third cover 413, the fourth cover 414 and the first liner wall 23 form an evaporator chamber, the evaporator 50 'is installed in the evaporator chamber, preferably, the fan set 60 is installed in the evaporator chamber, and the fan set 60 is installed above the evaporator 50'. The fan set 60 being located above the evaporator 50 'means that the fan set 60 is located between the evaporator 50' and the first cover plate 411, and the fan set 60 is located substantially in an upper space of the evaporator chamber. Wherein, in order to fix the fan set 60, the side of the second cover plate 412 facing the evaporator chamber has an extension boss 420, and the fan set 60 is fixed on the extension boss 420. In this embodiment, the surface of the extending boss 420 for fixing the fan set 60 is an inclined plane, so that the upper side of the fan set 60 is inclined towards the first liner wall 23, i.e. the fan set 60 is obliquely disposed above the evaporator 50', wherein the extending boss 420 with an inclined plane does not affect the air suction of the fan set 60 from the evaporator 50', i.e. does not affect the air circulation in the accommodating portion 21 of the whole liner 20.

The duct board 410 is not limited to the structure shown in fig. 7D and 7E, in other embodiments of the present invention, the duct board is, for example, a U-shaped structure, an opening of the U-shaped structure faces the first liner wall, wherein the fan set is located on an upper side of the duct board of the U-shaped structure, a bottom wall of the U-shaped structure is parallel to and opposite to the first liner wall, and a housing of the fan set is obliquely fixed on the bottom wall of the U-shaped structure and is inclined towards the first liner wall. The outer shell of the fan unit, the U-shaped structure and the first liner wall form an air circulation channel together.

Further, as shown in fig. 7F, the evaporator 50' is in a "vertical arrangement", which means that the flow direction of air is perpendicular to the fins in the evaporator 50' when the air flows through 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'.

In addition, the evaporator 50 'includes a hook 501', corresponding to the hook 501', a mounting hole (not shown) is provided on the first liner wall 23 of the liner 20, and the evaporator 50' is directly hung on the first liner wall 23 by the hook 501 'being clamped into the mounting hole, so that the evaporator 50' is convenient to assemble.

Because the evaporator 50' is "vertically arranged", the longitudinal depth of the evaporator chamber between the air duct plate 410 and the first liner wall 23 is smaller in the horizontal refrigerator 400 than in the horizontal refrigerator 100, wherein the evaporator chamber with smaller longitudinal depth occupies smaller space, and the space utilization of the liner 20 is improved. And the fan set 60 is arranged in the evaporator chamber with smaller longitudinal depth, the extension boss 420 is formed in the air duct plate 410, and the fan set 60 is obliquely fixed on the extension boss 420 in a preferred design mode. The extension boss 420 is not limited to protruding from the second cover plate 412 of the duct plate 410. In other embodiments of the invention, the extension boss may protrude from the duct plate or the first liner wall 23 into the evaporator chamber.

The fan set 60 is, for example, but not limited to, a centrifugal fan. In other embodiments, the fan set 60 may also be an axial flow fan.

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

If a food basket (not shown) is provided in the liner 20, the first air outlet 401 is higher than the upper edge of the food basket. In addition, the air outlet sides of the first air outlet 401 may be respectively provided with air outlet cover plates, and the air outlet cover plates include air outlet micropores (refer to the description of the air outlet micropores 811 in the first embodiment of the present invention), and the air outlet micropores extend obliquely upward from the outer side surfaces of the air outlet cover plates to the opposite inner side surfaces of the air outlet cover plates, and penetrate through the air outlet cover plates. By the design of the air outlet micro-holes, the first air outlet 401 can be inclined downwards to outlet air, i.e. to the bottom of the liner 20. Of course, the air outlet micropores can also be replaced by the design of the air outlet grating.

The liner 20 of the horizontal refrigerator 400 comprises a bottom plate 25, an air return opening 402 is formed in the bottom plate 25, an air return channel groove (not shown) is formed between the bottom plate 25 and the case 10, preferably, the air return opening 402 is located on one side, close to the second liner wall 24, of the bottom plate 25, the second liner wall 24 and the first liner wall 23 are respectively located on two opposite sides of the bottom plate 25, wherein the bottom plate 25 is further provided with an air return channel connecting hole (not shown), the air return channel connecting hole is located in an area, close to the evaporator 50', of the bottom plate 25, and preferably, the air return channel connecting hole is located in the evaporator cavity. The air return duct groove is communicated with the air return opening 402 and the air return duct connecting hole, an air channel between the air return duct groove and the bottom plate 25 is an air return duct, air in the accommodating part 21 of the liner 20 enters the air return duct from the air return opening and enters the evaporator 50 'through the air return duct connecting hole, and is sucked again by the fan set 60 and sent out after being processed by the evaporator 50'.

As can be seen from the above, the air circulation in the horizontal refrigerator 400 includes air supply and air return, after the fan set 60 works, air is sucked from one side of the evaporator 50', and the air is supplied from the other side of the fan set 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 liner 20 is returned from the return air inlet 402, the returned air enters the evaporator chamber from the return air duct through the return air duct connecting hole, flows from the lower part to the upper part of the evaporator 50', is removed water vapor by the evaporator 50', and is again sucked by the fan set 60. In this embodiment, the first liner wall 23 is located, for example, away from the user, on the back side of the horizontal refrigerator 200; and return air port 402 is adjacent to floor 25 of liner 20. The above-mentioned air circulation process can be regarded as back side air supply and bottom return air.

In other embodiments of the present invention, the air outlet of the horizontal refrigerator 400 is not limited to be disposed on the first liner wall 23, but a second air outlet (not shown) and a third air outlet (not shown) may be disposed on the third liner wall 26 and the fourth liner wall 27, respectively, the second air outlet and the first air outlet connecting hole are communicated through a second air outlet channel (not shown), the third air outlet and the first air outlet connecting hole are communicated through a third air outlet channel (not shown), the second air outlet channel is disposed between the third liner wall 26 and the case 10, the third air outlet channel is disposed between the fourth liner wall 27 and the case 10, the air channel between the second air outlet channel and the third liner wall 26 is a second air channel, and the air channel between the third air outlet channel and the fourth liner wall 27 is a third air channel. The air sent 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 enters the accommodating part of the liner from the first air outlet 401, the second air outlet and the third air outlet respectively. When the horizontal refrigerator 400 is used, the third liner wall 26 is located on the right side of the user, the fourth liner wall 27 is located on the left side of the user, and the air return opening 402 is still disposed on the side of the bottom plate 25 close to the second liner wall 24, so that the air outlet can be regarded as back side, left side and right side for supplying air simultaneously, and circulating air from the bottom.

According to the horizontal refrigerator 400 in the fourth embodiment of the invention, the vertically arranged evaporator 50 'is hung on the first liner wall 23 of the liner 20, so that the installation steps of the evaporator 50' are simplified, the longitudinal depth of the evaporator chamber is reduced, the transverse space occupation of the evaporator chamber is reduced, and the space utilization rate of the accommodating part 21 of the liner 20 is improved. In addition, depending on the arrangement of the evaporator 50', a back side air supply, a bottom return air supply, or both back side and left and right side air supply, and a bottom return air circulation is provided.

Fig. 8A is a schematic top view of a horizontal refrigerator in 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. Elements in fig. 8A to 8D that are the same as those in fig. 1 to 4C have similar functions, and are not described in detail.

A fifth embodiment of the present invention provides a horizontal refrigerator 500, the horizontal refrigerator 500 differs from the horizontal refrigerator 100 provided in the first embodiment of the present invention in that: 1) The relative positions between the fan set 60 and the evaporator 50 are different; 2) The air circulation of the horizontal refrigerator 500 is different from that of the horizontal refrigerator 100.

As shown in fig. 8A to 8D, the bottom of the liner 20 of the horizontal refrigerator 500 is recessed toward the accommodating portion 21 to form a recess, and the recess 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 liner wall 26; the air duct plate 510 is disposed at one side of the first sidewall 221, a space between the air duct plate 510 and the first sidewall 221 constitutes an evaporator chamber, and the evaporator 50 is disposed in the evaporator chamber; wherein, the air duct board 510 is located in the accommodating portion 21 of the liner 20.

The air duct board 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 the air return opening 505, the air return opening 505 is close to the lower edge of the first cover 511 close to the bottom plate 25, wherein the air return opening 505 may include a plurality of air return openings, the plurality of air return openings penetrate the first cover 511, and the plurality of air return openings are longitudinally arranged along the first cover 511, but not limited thereto. In other embodiments, the return air inlet 505 is, for example, a longitudinally extending elongated opening extending through the first cover 511.

A return air channel groove 506 is arranged between the first cover plate 511 and the evaporator 50, and a return air channel connecting hole 507 is arranged on one side of the return air channel groove 506 close to the second liner wall 24; the return air duct groove 506 is communicated with the return air opening 505 and the return air duct connecting hole 507; the air passage between the return air duct groove 506 and the first cover plate 511 is a return air duct.

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

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

The first air outlet 501 comprises a plurality of first air outlet openings, the first air outlet openings penetrate through the first liner wall 23, and the first air outlet openings are arranged along the transverse direction of the first liner wall 23; similarly, the second air outlet 503 includes a plurality of second air outlet openings, the plurality of second air outlet openings penetrate through the second liner wall 24, and the plurality of 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, where the air outlet cover plate includes air outlet micropores (refer to the description of the air outlet micropores 811 in the first embodiment of the present invention), and the air outlet micropores 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 downdip air outlet of the air outlets can be enabled to be directed towards the bottom of the liner 20. Of course, the air outlet micropores can also be replaced by the design of the air outlet grating.

Further, the fan set 60 is disposed in the evaporator chamber, the fan set 60 is disposed near the first liner wall 23, and the fan set 60 is disposed above the evaporator 50 in the evaporator chamber, that is, the fan set 60 is disposed between the second cover plate 512 and the evaporator 50 (as shown in fig. 8B and 8D), a supporting structure may be disposed in the evaporator chamber, the supporting structure is disposed between the first liner wall 23 and the second end 52 of the evaporator 50, the fan set 60 is disposed on the upper side of the supporting structure, and the evaporator 50 is disposed on the lower side of the supporting structure.

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

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

The evaporator 50 in the horizontal freezer 500 is "horizontally disposed" which means that the direction of air flow is parallel to the fins in the evaporator 50 as the air flows through the evaporator 50. A heating pipe is embedded in the plurality of fins of the evaporator 50, and the heating pipe provides heat to defrost frost condensed in the evaporator 50.

Further, in order to facilitate the discharge of the defrost water in the evaporator 50, the evaporator 50 is obliquely placed in the evaporator chamber. The second end 52 of the evaporator 50, which is close to the fan set 60, is higher than the first end 51 of the evaporator 50, which is far from the fan set 60, so that the phenomenon that frost water in the evaporator 50 flows to the fan set 60, and frost is frozen after the fan set 60 sucks the frost water, and the operation is abnormal is avoided.

A top insulation layer may be provided between the evaporator 50 and the partition 508, and a water receiving box and a bottom insulation layer 42 may be provided between the evaporator 50 and the bottom plate 25, which are stacked in sequence. The top and bottom insulation layers serve to isolate the evaporator 50 from the external environment. And, the bottom insulation 42 has a slope structure such that the first end 51 of the evaporator 50 is lower than the second end 52. The description of the top insulation layer and the bottom insulation layer 42 in this embodiment can refer to the description of the top insulation layer 41 and the bottom insulation layer 42 in the first embodiment of the present invention.

The air circulation in the horizontal refrigerator 500 comprises air supply and air outlet, wherein the fans of the fan set 60 are centrifugal fans, when the centrifugal fans work, air is sucked from one side of the evaporator 50 and is supplied through the other side of the fan set 60, the air enters the third air duct, enters the first air duct and the second air duct respectively through the first air outlet duct connecting hole and the second air outlet duct connecting hole, and then enters the inner container 20 through the first air outlet 501 and the second air outlet 503; the air in the liner 20 is returned from the return air inlet 505 on the first cover plate 511 of the air duct plate 510 to enter the return air duct, enters the evaporator chamber through the return air duct connecting hole 507, flows from the first end 51 of the evaporator 50 to the second end 52, is treated by the evaporator 50, is sucked again by the fan set 60 and is sent to the air outlet duct. Wherein, when the horizontal refrigerator 500 is used, the first liner wall 23 is positioned at one side far away from a user and can be regarded as the back side of the horizontal refrigerator 500; the second liner wall 24 is positioned on the side near the user and can be considered to be the proximal side of the chest freezer 500; the air return opening 505 is arranged close to the bottom plate 25 of the liner 20; therefore, the above-mentioned wind circulation can also be regarded as the circulation of back side, front side air-out and bottom air-return.

In summary, according to the horizontal refrigerator provided by the invention, the air duct plate is arranged on one side of the concave part of the inner container, and the space between the air duct plate and the side wall of the concave part of the inner container or the wall of the inner container is used as an evaporator chamber to accommodate the evaporator; and the setting positions of the air outlet and the air return port on the inner container are matched and adjusted, so that the aim of uniformly controlling the temperature of the inner container is fulfilled, and the phenomenon of condensation of the glass door body of the horizontal refrigerator is effectively solved. In addition, the structure of the concave part and the air duct plate is improved, so that the occupied space of the evaporator chamber can be effectively reduced, and the space utilization rate of the accommodating part of the liner is further improved.

Of course, the present invention is capable of other various embodiments and its several details are capable of modification and variation in light of the present invention by one skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.

Claims

1. A horizontal refrigerator, which comprises a box body, the box body comprises a box shell and an inner container, the inner container is embedded in the box shell, the horizontal refrigerator is characterized in that,

the bottom plate of the inner container is sunken towards the accommodating part 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 with the bottom plate of the inner container; the air duct plate is arranged on one side of the first side wall;

The air duct plate is positioned in the accommodating part, the inner container is provided with a first inner container wall, and the first inner container wall extends upwards from the bottom plate;

the air duct plate comprises a first cover plate, a second cover plate, a third cover plate and a fourth cover plate, wherein the first cover plate is opposite to the bottom plate, one end of the first cover plate is connected with the second cover plate, the opposite end of the first cover plate is combined on a first liner wall of the liner, the second cover plate is opposite to the first liner wall, the third cover plate and the fourth cover plate are respectively combined on the first cover plate and the second cover plate, and spaces among the first cover plate, the second cover plate, the third cover plate, the fourth cover plate and the first liner wall form an evaporator chamber;

the horizontal refrigerator further comprises an evaporator and a fan set which are respectively arranged in the evaporator chamber;

the horizontal refrigerator further comprises an air outlet arranged on the wall of the first inner container and a first air outlet channel connecting hole for communicating the fan set and the air outlet, wherein the air outlet comprises a first air outlet, the first air outlet is arranged close to the upper edge of the wall of the first inner container, and the first air outlet is used for air outlet towards the bottom of the inner container;

the horizontal refrigerator further comprises a return air inlet arranged on the bottom plate, the return air inlet is communicated with the evaporator cavity, air in the liner is returned from the return air inlet, the returned air enters the evaporator cavity and flows from the lower part of the evaporator towards the upper part, and the air is sucked by the fan set again after the vapor is removed by the evaporator.

2. The chest freezer of claim 1, wherein the evaporator is coupled to the first liner wall.

3. The horizontal cooler of claim 2, wherein a hook is disposed on a side of said evaporator facing said first liner wall, a mounting hole is disposed on said first liner wall, and said hook is engaged in said mounting hole, such that said evaporator is coupled to said first liner wall.

4. The chest freezer of claim 2, wherein the evaporator is arranged vertically.

5. The horizontal cooler of claim 1, wherein said air duct plate is provided with an extension boss extending from said air duct plate toward said evaporator chamber, said fan assembly being secured to said extension boss.

6. The horizontal cooler of claim 5, wherein said first cover plate is parallel to said bottom plate, said second cover plate is parallel to said first liner wall, said extension boss is disposed on said second cover plate, and said extension boss extends toward said first liner wall.

7. The horizontal cooler of claim 5, wherein said extension boss has a sloped surface, said fan unit being secured to said sloped surface such that an upper side of said fan unit is sloped toward said first liner wall.

8. The horizontal cooler of claim 1, wherein the fan unit is a centrifugal fan.

9. The horizontal cooler of claim 1, wherein said liner comprises a second liner wall, said second liner wall and said first liner wall are respectively positioned at two opposite sides of said bottom plate, and said return air inlet is positioned at one side of said bottom plate adjacent to said second liner wall; the second liner wall is opposite to the first liner wall, and extends upwards from one side of the bottom plate away from the first liner wall.