CN111351282B - Horizontal refrigerator - Google Patents

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 comprises a bottom plate, a step part and a first inner container wall, the step part is respectively connected with the bottom plate and the first inner container wall, the step part comprises a first side wall and a second side wall which are mutually connected, and the second side wall is connected with the first inner container wall; the air duct plate is arranged on the second side wall, and the space between the air duct plate and the first liner wall forms an evaporator chamber; the evaporator and the evaporator fan set are respectively arranged on the second side wall, the air duct plate comprises a first cover plate and a second cover plate, the second cover plate is opposite to the first liner wall, the evaporator is arranged on a first side of the second cover plate, the evaporator fan set is arranged on a second side of the second cover plate, the first side is opposite to the second side, and the first side faces the first liner wall.

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 the article.

In addition, the front side wall and the rear side wall of the existing air-cooled horizontal refrigerator are longer along the width direction or the transverse direction, the length direction or the longitudinal direction of the horizontal refrigerator is shorter than the left side wall and the right side wall, and the air supply opening or the air return opening of the air duct is often arranged on the left side wall and the right side wall, so that the air supply distance is longer, the air is not easy to supply to the opposite side of the box cavity of the horizontal refrigerator, and if the air return opening and the air return opening are arranged on the same side wall of the horizontal refrigerator, the air quantity of the middle part of the box cavity of the horizontal refrigerator is smaller, and the temperature of each area in the box cavity is easy to be uneven.

In view of the above, the present invention provides a horizontal air-cooled refrigerator, which overcomes the above problems of the existing horizontal air-cooled refrigerator.

Disclosure of Invention

The invention aims to provide a horizontal refrigerator, which has more uniform temperature distribution and is not easy to dew on a glass door body above an inner container by changing the position of an air port 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 comprises a bottom plate, a step part and a first inner container wall, the step part is respectively connected with the bottom plate and the first inner container wall, the step part comprises a first side wall and a second side wall which are mutually connected, and the second side wall is connected with the first inner container wall; the air duct plate is arranged on the second side wall, and the space between the air duct plate and the first liner wall forms an evaporator chamber; the evaporator and the evaporator fan set are respectively arranged on the second side wall, the air duct plate comprises a first cover plate and a second cover plate, the second cover plate is opposite to the first liner wall, the evaporator is arranged on a first side of the second cover plate, the evaporator fan set is arranged on a second side of the second cover plate, the first side is opposite to the second side, and the first side faces the first liner wall.

As an optional technical solution, the air duct board includes an extension cover plate, the extension cover plate is located on the second side of the second cover plate, and a space between the extension cover plate and the second side wall is used for accommodating the evaporator fan set.

As an alternative solution, the first cover plate is parallel to the second sidewall.

As an optional technical scheme, the air conditioner further comprises a plurality of rows of first air outlets, the plurality of rows of first air outlets are arranged on the bottom plate, wherein the plurality of rows of first air outlets are sequentially arranged along the longitudinal direction of the bottom plate, each row of first air outlets comprises a plurality of first air outlet openings, the plurality of first air outlet openings are sequentially arranged along the transverse direction of the bottom plate, and the width or the area of each first air outlet opening in the plurality of first air outlet openings is gradually increased along the transverse direction.

As an optional technical scheme, the air conditioner further comprises a first air outlet channel groove and a second air outlet channel groove, wherein the first air outlet channel groove corresponds to the plurality of rows of first air outlets and is arranged between the bottom plate and the bottom of the box shell; the second air outlet channel is arranged between the first side wall and the bending partition plate of the box shell.

As an optional technical scheme, the liner further comprises a second liner wall and a third liner wall which are oppositely arranged, the first liner wall is positioned between the second liner wall and the third liner wall, the second liner wall and the third liner wall are lateral extending side walls, the first liner wall is a longitudinal extending side wall, and the first air return port is arranged on the first cover plate; the second air return port is arranged at the upper edge of the second inner container wall, and the third air return port is arranged at the upper edge of the third inner container wall.

As an optional technical scheme, a first return air duct groove is arranged corresponding to the first return air inlet, and the first return air duct groove is positioned between the second liner wall and the box shell; and a second return air duct groove is arranged corresponding to the third return air inlet, and the second return air duct groove is positioned between the third liner wall and the box shell.

As an optional technical scheme, the evaporator further comprises a flow guide partition board, wherein the flow guide partition board is arranged in the evaporator chamber, and the flow guide partition board is arranged between the first cover board and the evaporator.

As an alternative technical scheme, the area of the flow guide partition plate corresponding to the evaporator is provided with at least one return air hole, and the at least one return air hole enables air between the first cover plate and the flow guide partition plate to flow to the evaporator.

As an alternative technical scheme, the bottom plate is bent towards the container to form the step part.

Compared with the prior art, in the horizontal refrigerator provided by the invention, the evaporator fan unit and the evaporator are arranged on the second side wall of the step part of the bottom plate, the air outlet is arranged at the bottom of the horizontal refrigerator, the air return opening is arranged at the top of the horizontal refrigerator, and the air is reduced from blowing onto the glass door body at the top of the horizontal refrigerator, so that the condensation risk of the glass door body is reduced.

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. 1A is an exploded view of a horizontal refrigerator in a first embodiment of the present invention.

Fig. 1B is a schematic view of the evaporator of fig. 1A.

Fig. 2A to 2C are schematic cross-sectional views of a horizontal refrigerator according to a first embodiment of the present invention at different viewing angles.

Fig. 2D is an enlarged schematic view of the dashed area a in fig. 2C.

Fig. 2E is a schematic view of the baffle plate of fig. 2D disposed in the evaporator.

Fig. 3A to 3D are schematic views of a horizontal refrigerator according to a second embodiment of the present invention at different viewing angles.

Fig. 4A to 4C are schematic views of a horizontal refrigerator according to a third embodiment of the present invention at different viewing angles.

Fig. 5A to 5C are schematic views of a horizontal refrigerator according to a fourth embodiment of the present invention at different viewing angles.

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

Fig. 7A to 7C are schematic views of a horizontal refrigerator according to a sixth 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. 1A is an exploded view of a horizontal refrigerator in a first embodiment of the present invention; FIG. 1B is a schematic view of the evaporator of FIG. 1A; fig. 2A to 2C are schematic cross-sectional views of a horizontal refrigerator according to a first embodiment of the present invention at different viewing angles; FIG. 2D is an enlarged schematic view of the dashed area A in FIG. 2C; fig. 2E is a schematic view of the baffle plate of fig. 2D disposed in the evaporator.

As shown in fig. 1A, in a horizontal refrigerator 100 according to a first embodiment of the present invention, particularly an air-cooled horizontal refrigerator, the horizontal refrigerator includes a case 10 and a liner 20 embedded in a receiving space 11 of the case 10, the liner 20 has a receiving portion 21, a bottom plate 22, a step portion 23 and a first liner wall 24, wherein the step portion 23 is respectively connected to the bottom plate 22 and the first liner wall 24, preferably, the bottom plate 22 is bent toward the receiving portion 21 to form the step portion 23, the step portion 23 includes a first side wall 231 and a second side wall 232 connected to each other, the first side wall 231 is vertically connected to the bottom plate 22, and the second side wall 232 is parallel to the bottom plate 22 and is vertically connected to the first liner wall 24 of the liner 20. In the present embodiment, the step portion 23 is a right-angle structure, the first side wall 231 is perpendicular to the bottom plate 22, and the second side wall 23 is perpendicular to the first liner wall 24, but not limited thereto. In other embodiments of the present invention, the step portion 23 may be a non-right angle structure, for example, an included angle between the first sidewall and the bottom plate is an acute angle or an obtuse angle, and an included angle between the first sidewall and the second sidewall is an acute angle or an obtuse angle, and an included angle between the second sidewall and the first liner wall is an acute angle or an obtuse angle. In addition, the step portion may also be an arc-shaped structure.

Further, the air duct plate 30 is disposed on the second side wall 232 of the step portion 23, and a space between the air duct plate 30 and the first liner wall 24 constitutes an evaporator chamber in which the evaporator 40 is disposed. Wherein the evaporator 40 is fixed to the second sidewall 232 of the stepped portion 23.

As shown in fig. 1A and 1B, the evaporator 40 includes a plurality of fins 43 parallel to each other and spaced apart from each other, and a coil 44 penetrating the plurality of fins 43, wherein the evaporator 40 is in a "vertical arrangement" in which the flow direction of air is perpendicular to the fins 43 in the evaporator 40 when the air flows through the evaporator 40 in the flow direction indicated by the arrow F. Further, the evaporator 40 adopts a structure of "vertical arrangement", the coils 44 with a smaller number and longer length are arranged in the plurality of fins 43 in a penetrating manner, and compared with the structure of "horizontal arrangement" of the evaporator, the coils with a larger number and smaller length are arranged in the plurality of fins in a penetrating manner, so that the "vertical arrangement" is easier to produce in the actual manufacturing process, and the working efficiency of the evaporator is higher.

With continued reference to fig. 1A, the liner 20 further includes a second liner wall 25 and a third liner wall 26 disposed opposite to each other, where the second liner wall 25 and the third liner wall 26 respectively extend upward from opposite sides of the bottom plate 22, and opposite sides of the first liner wall 24 are respectively connected to the second liner wall 25 and the third liner wall 26.

The second liner wall 25 is provided with a plurality of groups of air outlets and air outlet channel connecting holes 253, each group of air outlets comprises a first air outlet 251 and a second air outlet 252, the first air outlet 251 is close to the upper edge of the second liner wall 25, the second air outlet 252 is positioned in the middle of the second liner wall 25 or is biased downwards in the middle, and the upper edge of the second liner wall 25 is far away from the bottom plate 22. The first air outlet 251 has a plurality of first air outlet openings 2511, the second air outlet 252 has a plurality of second air outlet openings 2521, the first air outlet openings 2511 and the second air outlet openings 2521 respectively penetrate through the second liner wall 25, and the plurality of first air outlet openings 2511 and the plurality of second air outlet openings 2521 respectively are sequentially and transversely arranged along the second liner wall 25. Corresponding to the multiple groups of air outlets, multiple groups of air outlet cover plates are arranged on one side, facing the accommodating part 21, of the second liner wall 25, each of the multiple groups of air outlet cover plates comprises a first air outlet cover plate 255 and a second air outlet cover plate 256, the first air outlet cover plate 255 corresponds to the first air outlet 251, and the second air outlet cover plate 256 corresponds to the second air outlet 252; the first air-out cover 255 is provided with a first air-out microstructure 2551 corresponding to the area of the first air-out opening 2511, the second air-out cover 256 is provided with a second air-out microstructure 2561 corresponding to the area of the second air-out opening 2521, and the first air-out microstructure 2551 and the second air-out microstructure 2561 are, for example, microporous structures, air-out grids, and the like, and are used for adjusting the air output and the air output direction of the first air-out opening 2511 and the second air-out opening 2561. Preferably, the first air-out microstructure 2551 and the second air-out microstructure 2561 are respectively in a microporous structure, the microporous structure penetrates through the corresponding air-out cover plate (the first air-out cover plate 255 or the second air-out cover plate 256), and the microporous structure extends obliquely upwards from the outer side surface of the corresponding air-out cover plate and penetrates through to the inner side surface of the corresponding air-out cover plate, wherein the outer side surface is opposite to the inner side surface, the outer side surface faces the third liner wall 26, and the inner side surface faces the second liner wall 25. The above-mentioned microporous structure extends obliquely upward in the corresponding air outlet cover plate, so that the air sent out from the microporous structure circulates toward the bottom of the liner 20.

In the present embodiment, the first air outlet cover 255 and the second air outlet cover 256 can be coupled to the second liner wall 25 by welding, fastening or screw locking, but not limited to. In other embodiments of the present invention, the first air-out cover plate and the second air-out cover plate are integrally formed with, for example, a second liner wall of the liner, where the first air-out cover plate and the second air-out cover plate correspond to the areas of the first air-out opening and the second air-out opening, and the first air-out microstructure and the second air-out microstructure may be formed through hollow processing. The first air-out microstructure and the second air-out microstructure are, for example, a microporous structure, an air-out grille and the like.

In addition, the air outlet duct connecting hole 253 is disposed in the area of the second liner wall 25 near the first liner wall 24, and the air outlet duct connecting hole 253 is located above the second sidewall 23 of the step portion 23, wherein the air outlet duct connecting hole 253 communicates with the evaporator chamber.

The third liner wall 26 is provided with a plurality of groups of air return inlets and air return duct connecting holes 263, each group of air return inlets comprises a first air return inlet 261 and a second air return inlet 262, the first air return inlet 261 is close to the upper edge of the third liner wall 26, the second air return inlet 262 is positioned in the middle of the third liner wall 26 or is biased downwards in the middle, and the upper edge of the third liner wall 26 is far away from the bottom plate 22. The first air return 261 has a plurality of first air return openings 2611, the second air return 262 has a plurality of second air return openings 2621, the first air return openings 2611 and the second air return openings 2621 respectively penetrate through the third liner wall 26, and the plurality of first air return openings 2611 and the second air return openings 2621 respectively are sequentially and transversely arranged along the third liner wall 26. Corresponding to the multiple sets of air return openings, multiple sets of air return cover plates are arranged on one side, facing the accommodating part 21, of the third liner wall 26, each set of air return cover plates comprises a first air return cover plate 265 and a second air return cover plate 266, each first air return cover plate 265 corresponds to the first air return opening 261, and each second air return cover plate 266 corresponds to the second air return opening 262; the first air return cover 265 is provided with a first air return microstructure 2651 corresponding to the area of the first air return opening 2611, the second air return cover 266 is provided with a second air return microstructure 2661 corresponding to the area of the second air return opening 2621, and the first air return microstructure 2651 and the second air return microstructure 2661 are, for example, microporous structures, air return grids, and the like, and are used for adjusting the air return volume and the air return direction of the first air return opening 2611 and the second air return opening 2661. Preferably, the first return air microstructure 2651 and the second return air microstructure 2661 are return air grids respectively.

In the present embodiment, the first air return cover 265 and the second air return cover 266 can be coupled to the third liner wall 26 by welding, fastening or screw locking, but not limited to. In other embodiments of the present invention, the first air return cover plate and the second air return cover plate are integrally formed with the second liner wall of the liner, for example, wherein the first air return cover plate and the second air return cover plate correspond to the areas of the first air return opening and the second air return opening, and the first air return microstructure and the second air return microstructure can be formed through hollow processing. The first air return microstructure and the second air return microstructure are, for example, air return grids.

In addition, the air return channel connecting hole 263 is disposed in the area of the third liner wall 26 near the first liner wall 24, and the air return channel connecting hole 263 is located above the second sidewall 23 of the step portion 23, wherein the air return channel connecting hole 263 communicates with the evaporator chamber.

If a food basket (not shown) is placed in the inner container 20 of the horizontal refrigerator 100, the first air outlet 251 is higher than the upper edge of the food basket according to the size and the placement position of the food basket, and the second air outlet 252 is lower than the lower edge of the food basket; similarly, the first return air inlet 261 is higher than the upper edge of the food basket; the second return opening 262 is below the lower rim of the food basket.

With continued reference to fig. 1A, 2A-2C, the duct board 30 includes a first cover plate 31 and a second cover plate 32 connected to each other, wherein the first cover plate 31 is parallel and opposite to the second sidewall 232, and the second cover plate 32 is parallel and opposite to the first liner wall 24. In this embodiment, the first cover plate 31 is vertically connected to the second cover plate 32, i.e. the air duct plate 30 is also in a right-angle structure.

The evaporator 40 is in a "vertical arrangement" and the evaporator 40 includes opposed first and second ends 41, 42, wherein the first end 41 is adjacent the third liner wall 26 and the second end 42 is adjacent the second liner wall 25. The evaporator fan assembly 50 is disposed between the second end 42 and the second liner wall 25. The air outlet side of the evaporator fan unit 50 corresponds to the air outlet duct connecting hole 243, and the first end 41 of the evaporator 40 corresponds to the return duct connecting hole 253.

Further, the horizontal refrigerator 100 further includes an air outlet channel 254 and an air return channel 264, wherein the air outlet channel 254 is disposed between the second liner wall 25 of the liner 20 and the casing 10, and the air return channel 264 is disposed between the third liner wall 26 of the liner 20 and the casing 10. The foaming layer 60 is filled between the case 10 and the liner 20, the foaming layer 60 is used for fixing the air outlet channel 254 and the air return channel 264, wherein the air outlet channel 254 and the air return channel 264 are hidden between the case 10 and the liner 20, the volume of the containing part of the liner 20 is not occupied, the horizontal refrigerator is more attractive, and the space utilization rate of the liner is improved. The air outlet channel 254 is used for communicating the first air outlet 251, the second air outlet 252 and the air outlet connecting hole 253; the air return channel 264 is used for communicating the first air return 261, the second air return 262 and the air return channel connecting hole 263; the air channel between the air outlet channel 254 and the second liner wall 25 is an air outlet channel, and the air channel between the air return channel 264 and the third liner wall 26 is an air return channel.

Referring to fig. 2C to 2D, the evaporator 40 is located in the middle region of the entire evaporator chamber, at least one baffle is further disposed in the evaporator 40, the at least one baffle is parallel to the fins 43, and the at least one baffle includes, for example, a first baffle 45, a second baffle 46 and a third baffle 47, the first baffle 45 is located at the first end 41 of the evaporator 40, the second baffle 46 is located in the middle of the evaporator 40, and the third baffle 47 is located at the second end 42 of the evaporator 40; wherein the first to third baffles 47 are used to change the direction of air circulation in the evaporator chamber. Specifically, when the evaporator fan assembly 50 is operated, the suction side of the evaporator fan assembly 50 faces the evaporator 40, and thus, the air sucked by the evaporator fan assembly 50 first passes through the evaporator 40, and enters the evaporator chamber in a circulation direction indicated by an arrow F in fig. 1B because the first baffle 45 is parallel to the fins 43, and the air circulates toward the upper portion of the evaporator chamber after encountering the first baffle 45, is blocked by the first cover plate 31 at the upper portion, continues to circulate toward the lower portion of the evaporator chamber along the gaps between the fins 43, and passes through the gaps between the second baffle 46 in the middle of the evaporator 40 and the second side wall 232 of the stepped portion 23; part of the air is blocked by the plurality of fins 43 between the second baffle 46 and the third baffle 47, and continues to flow toward the upper portion of the evaporator chamber through the gaps between the plurality of fins 43, and is sucked into the evaporator fan assembly 40 through the third baffle 47. The first to third baffles 45, 46, 47 are provided to change the flow path of the sucked air in the evaporator 40, so that the flow path of the air is prolonged, the evaporator 40 is convenient for fully treating the air, and the air treatment efficiency is improved.

The number and the arrangement position of at least one baffle plate in the evaporator 40 are not limited to the first baffle plate 45 and the third baffle plate 47. That is, in other embodiments of the invention, the number of baffles in the evaporator may be increased or decreased, as well as in other areas of the evaporator.

The upper portion of the evaporator chamber is a region between the first cover plate 31 of the air duct plate 30 and the upper side of the evaporator 40, and the lower portion of the evaporator chamber is a region between the lower side of the evaporator 40 and the second side wall 232 of the stepped portion 23.

Further, the first to third baffles 45 to 47 in the evaporator 40 have, for example, similar structures. In actual preparation, the first baffle 45 to the third baffle 47 may be a structure in which a plurality of fins 43 are stacked on each other to form a fin structure having a relatively large thickness; of course, a plate structure of a larger thickness made of a material similar to the fins 43 may be used. Wherein, the lower edges of the first baffle 45 to the third baffle 47 are respectively provided with fixing holes 451 (461, 471), and the fixing holes 451 (461, 471) are respectively used for fixing the heating pipes below the evaporator 40. The heating tube is used to provide heat to melt frost in the evaporator 40.

In one embodiment of the present invention, the second end 42 of the evaporator 40 near the evaporator fan assembly 50 is higher than the first end 41 of the evaporator 40 far from the evaporator fan assembly 50 to facilitate the drainage of the defrost water generated by the evaporator 40 out of the evaporator chamber. A water receiving box (not shown) is disposed between the evaporator 40 and the second sidewall 232, and is configured to receive the defrosting water. The water receiving box is disposed between the evaporator 40 and the second sidewall 232, and has a water discharge port communicating with the outside of the evaporator chamber.

Further, in order to isolate the evaporator 40 from the external environment for heat transfer, a top thermal insulation layer (not shown) may be disposed between the upper side of the evaporator 40 and the first cover plate 31, and a bottom thermal insulation layer (not shown) may be disposed between the water receiving box at the lower side of the evaporator 40 and the second side wall 232, and the top thermal insulation layer and the bottom thermal insulation layer may also perform a function of supporting the evaporator 40.

The air circulation in the horizontal refrigerator 100 in the first embodiment of the present invention includes air supply and air return, after the evaporator fan unit 50 starts working, air is sucked from one side of the evaporator fan unit facing the evaporator 40, and air is sent from one side of the evaporator fan unit facing the air outlet channel connecting hole 253, the sent air enters the air outlet channel from the air outlet channel connecting hole 253 to the first air outlet 251 and the second air outlet 252, and enters the inner container 20 through the air outlet microstructures on the first air outlet cover plate 255 and the second air outlet cover plate 256; the air in the liner 20 enters the first air return port 261 and the second air return port 262 through the air return microstructure on the first air return cover plate 265 and the second air return cover plate 266, flows through the air return duct, enters the evaporator chamber through the air return duct connecting hole 263, flows through at least one baffle of the evaporator 40 and the flow guide of the fins 43, flows from the first end 41 to the second end 42 of the evaporator 40, is continuously sucked by the evaporator fan set 50 after being reprocessed by the evaporator 40, and continuously participates in circulation.

In this embodiment, the first to fourth liner walls 24 to 27 of the horizontal refrigerator 100 are disposed around the bottom plate 22, and the space between the first to fourth liner walls 24 to 27 and the bottom plate 22 is the accommodating portion 21. In actual use, the first liner wall 24 is located on the right side of the user, the fourth liner wall 27 is located on the left side of the user, the second liner wall 25 is considered to be the back side of the horizontal refrigerator on the side away from the user, and the third liner wall 26 is considered to be the front side of the horizontal refrigerator on the side close to the user, so the above-mentioned air circulation can be considered as the circulation of back-side air outlet and front-side back air.

In addition, the second liner wall 25 and the third liner wall 26 are lateral walls extending transversely of the horizontal refrigerator 100, the first liner wall 24 and the fourth liner wall 27 are lateral walls extending longitudinally of the horizontal refrigerator 100, in other words, the bottom plate 22 includes a pair of long sides and a pair of short sides, the second liner wall 25 and the third liner wall 26 are respectively disposed on the pair of long sides, and the first liner wall 24 and the fourth liner wall 27 are respectively disposed on the pair of short sides. Since the bottom plate 22 of the liner 20 is bent to form the step portion 23, the maximum lengths of the first liner wall 25 and the second liner wall 26 are respectively greater than the lengths of the first liner wall 24 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.

Therefore, in the horizontal refrigerator provided by the first embodiment of the invention, the air duct plate is arranged on the second side wall of the step part, the space between the air duct plate and the first side wall of the liner forms an evaporator chamber, and the evaporator is vertically arranged in the evaporator chamber, so that the working efficiency of the horizontal refrigerator is improved. In addition, by providing at least one baffle in the evaporator to change the direction of flow of air into the evaporator chamber, the air is more fully in contact with the evaporator as it flows through the evaporator.

Fig. 3A to 3D are schematic cross-sectional views of a horizontal refrigerator according to a second embodiment of the present invention at different viewing angles. In fig. 3A to 3D, the same reference numerals as those in fig. 1A to 2E denote the same elements, and have similar functions, and are not described in detail.

As shown in fig. 3A to 3D, a horizontal refrigerator 200, particularly an air-cooled horizontal refrigerator, is provided in a second embodiment of the present invention, which is different from the horizontal refrigerator 100 in that the evaporator 40' is "horizontally disposed" in the evaporator chamber.

As shown in fig. 3D, the evaporator 40 'includes a plurality of fins 43' parallel to each other and spaced apart from each other and a coil 44 'penetrating the plurality of fins 43', wherein the evaporator 40 'is arranged horizontally, and the horizontal arrangement means that when air flows through the evaporator 40' in a flow direction indicated by an arrow F, the flow direction of the air is parallel to the fins 43 'in the evaporator 40'; that is, air may pass directly through the gaps between the plurality of fins 43 'in the evaporator 40'.

Further, the evaporator 40' is "horizontally disposed" and no baffle is provided to change the direction of air flow.

Fig. 4A to 4C are schematic cross-sectional views of a horizontal refrigerator according to a third embodiment of the present invention at different viewing angles. In fig. 4A to fig. 4C, the same reference numerals as those in fig. 1A to fig. 2E denote the same elements, and have similar functions, and are not repeated.

As shown in fig. 4A to 4C, a horizontal refrigerator 300, particularly an air-cooled horizontal refrigerator, is provided in a third embodiment of the present invention, which is different from the horizontal refrigerator 100 in that 1) the evaporator 40 is 'horizontally disposed' in the evaporator chamber; 2) The structure of the air outlet channel 254 'is different from that of the air return channel 264'; 3) The structure of the air outlet opening is different from that of the return air opening.

Referring to fig. 3D, in the horizontal refrigerator 300, the evaporator 40 'includes a plurality of fins 43' parallel to each other and spaced apart from each other, and a coil 44 'penetrating the plurality of fins 43', wherein the evaporator 40 'is in a "horizontal arrangement", and the "horizontal arrangement" means that when air flows through the evaporator 40' along a flow direction indicated by an arrow F, the flow direction of the air is parallel to the fins 43 'in the evaporator 40'; that is, air may pass directly through the gaps between the plurality of fins 43 'in the evaporator 40'. Further, the evaporator 40' is "horizontally disposed", and no baffle is provided for changing the direction of air flow.

With continued reference to fig. 4A, the air outlet channel 254 'includes a first T-shaped connection portion 2541, the first T-shaped connection portion 2541 includes a first horizontal channel slot and a first vertical channel slot, the first horizontal channel slot communicates with the air outlet channel connection port 253 (as shown in fig. 1A) and the first vertical channel slot, the first vertical channel slot communicates with a first upper channel slot and a first lower channel slot of the air outlet channel 254', the first upper channel slot corresponds to the first air outlet 251 (as shown in fig. 1A), the first lower channel slot corresponds to the second air outlet 252 (as shown in fig. 1A), wherein the first air outlet 251 includes a first air outlet opening 2511', the first air outlet opening 2511' is an elongated opening, and the elongated opening penetrates the second liner wall 25. The first T-shaped connection portion 2541 makes air sent out by the evaporator fan unit 50 first enter the first horizontal channel slot from the air outlet channel connection hole 253, and then flow into the first upper channel slot and the first lower channel slot respectively by being split by the first vertical channel slot communicated with the first horizontal channel slot. The first upper channel slot is adjacent to the upper edge of the first liner wall 25 (as shown in fig. 1A) and the first lower channel slot is adjacent to the lower edge of the first liner wall 25.

With continued reference to fig. 4B, the return air duct slot 264 'includes a second T-shaped connection portion 2641, the second T-shaped connection portion 2641 includes a second horizontal channel slot and a second vertical channel slot, the second horizontal channel slot communicates with the return air duct connection port 263 (as shown in fig. 1A) and the second vertical channel slot, the second vertical channel slot communicates with a second upper channel slot and a second lower channel slot of the return air duct slot 264', the second upper channel slot corresponds to the first return air port 261 (as shown in fig. 1A), and the second lower channel slot corresponds to the second return air port 262 (as shown in fig. 1A), wherein the first return air port 261 includes a second return air opening 2611', the second return air port 262 includes a second return air opening 2621', and the second return air openings 2611 'and 2621' are respectively elongated openings, and the elongated openings penetrate the second liner wall 26. The second T-shaped connection portion 2641 makes the air returned in the first air return port 261 and the second air return port 262 enter the second vertical channel slot from the second upper channel slot and the second lower channel slot, respectively, and then enter the air return channel connection hole 263 (as shown in fig. 1A) through the second horizontal air channel slot to enter the evaporator chamber. The second upper channel slot is adjacent to the upper edge of the second liner wall 26 (as shown in fig. 1A) and the second lower channel slot is adjacent to the lower edge of the second liner wall 26.

In this embodiment, a structure of an air outlet duct groove and an air return duct groove is provided, in which air blown out by an evaporator fan set or sucked air can be buffered in the T-shaped connecting portion, and through extending an air circulation path, air outlet and air return are more uniform, and air outlet noise during operation of a horizontal refrigerator can be reduced. Similar to the chest freezer 100, the evaporator 40' of the chest freezer 300 includes opposed first and second ends 41', 42', wherein the first end 41' is proximate the third liner wall 26 and the second end 42' is proximate the second liner wall 25. The evaporator fan assembly 50 is disposed between the second end 42 and the second liner wall 25. Wherein the second end 42 'of the evaporator 40' adjacent to the evaporator fan assembly 50 is higher than the first end 41 'of the evaporator 40 remote from the evaporator fan assembly 50 to facilitate the drainage of the defrost water generated by the evaporator 40' out of the evaporator chamber. A water receiving box (not shown) is disposed between the evaporator 40' and the second sidewall 232, and is configured to receive the defrosting water. The water receiving box is disposed between the evaporator 40' and the second sidewall 232, and has a water discharge port communicating with the outside of the evaporator chamber.

Fig. 5A to 5C are schematic cross-sectional views of a horizontal refrigerator according to a fourth embodiment of the present invention at different viewing angles. In fig. 5A to 5C, the same reference numerals as those in fig. 1A to 2E denote the same elements, and have similar functions, and are not described in detail.

As shown in fig. 5A to 5C, a horizontal refrigerator 400, in particular, an air-cooled horizontal refrigerator according to a fourth embodiment of the present invention, wherein the horizontal refrigerator 400 is different from the horizontal refrigerator 100 in that: 1) The evaporator 80 located in the evaporator chamber may be in a "horizontal arrangement" or a "vertical arrangement"; 2) The arrangement positions of the plurality of groups of air outlets are different, and the design of air outlet holes included in the plurality of groups of air outlets is different; 3) The arrangement positions of the multiple groups of air return inlets are different; 4) Different wind circulation caused by different sets of air outlets and air returns.

The bottom plate 22 of the liner 20 in the horizontal refrigerator 400 is bent to form a step part 23, the step part 23 comprises a first side wall 231 and a second side wall 232, and the step part 23 is respectively connected with the bottom plate 22 and the first liner wall 24; the air duct board is arranged on the second side wall 232, and comprises a first cover plate 31 and a second cover plate 32 which are connected with each other, wherein the first cover plate 31 is opposite to the second side wall 232, and the second cover plate 32 is opposite to the first liner wall 24; wherein the space between the air duct plate and the first liner wall 24 constitutes an evaporator chamber in which the evaporator 80 is disposed. The evaporator fan set 50 is disposed above the evaporator 80, or the evaporator fan set 50 is located between the first cover plate 31 and the evaporator 80; the evaporator fan assembly 50 is adjacent the top of the horizontal cooler 400.

In this embodiment, the multiple sets of air outlets include a first air outlet 411, a second air outlet 413 and a third air outlet 415, wherein the first air outlet 411 is disposed on the second liner wall 25, the second air outlet 413 is disposed on the second cover plate 32 of the air duct plate, and the third air outlet 415 is disposed on the second liner wall 26. Preferably, the first air outlet 411 is disposed near the upper edge of the second liner wall 25, the second air outlet 413 is disposed in the middle of the second cover plate 32, and the third air outlet 415 is disposed in the middle of the third liner wall 26.

The first air outlet 411 includes a plurality of first air outlet openings, the plurality of first air outlet openings extend transversely, and the width W of each of the plurality of first air outlet openings increases along a first direction, which is defined as a direction in which the first liner wall 24 extends toward the fourth liner wall 27; similarly, the third air outlet 415 includes a plurality of third air outlet openings, the plurality of third air outlet openings are arranged in a transversely extending manner, and the width W of each third air outlet opening of the plurality of third air outlet openings sequentially increases along the second direction, which is defined as the extending direction of the first liner wall 24 toward the fourth liner wall 27. Preferably, the heights of the first air outlet openings are the same, and taking each first air outlet opening as a rectangle as an example, the areas of the first air outlet openings are gradually increased along the first direction; similarly, the heights of the second air outlet openings are the same, and taking each second air outlet opening as a rectangle as an example, the areas of the second air outlet openings gradually increase along the second direction.

In addition, the second air outlet 413 includes a plurality of second air outlet openings, and each of the plurality of second air outlet openings has the same width and height, so that the area of each second air outlet opening is the same.

Corresponding to the first to third air outlets 411, 413, 415, the first air outlet channel 412 is disposed between the second liner wall 25 and the case 10, and a space between the first air outlet channel 412 and the second liner wall 25 is used as a first air outlet channel; the second air outlet channel 414 is disposed in the evaporator chamber and located between the evaporator 80 and the second cover plate 32, and an air circulation space between the second air outlet channel 414 and the second cover plate 32 is used as a second air outlet channel; the third air outlet channel 416 is arranged between the third liner wall 26 and the box shell, and the air circulation space between the third air outlet channel 416 and the third liner wall 26 is a third air outlet channel; the second liner wall 25 is provided with a first air outlet duct connecting hole (not shown), the third liner wall 26 is provided with a second air outlet duct connecting hole (not shown), and two ends of the second air outlet duct are respectively communicated with the first air outlet duct and the third air outlet duct through the first air outlet duct connecting hole and the second air outlet duct connecting hole, that is, air sent out through the evaporator fan unit 50 firstly enters the second air outlet duct, and then respectively enters the first air duct and the third air duct through the first air outlet duct connecting hole and the second air outlet duct connecting hole. In the process of entering the third air duct, part of the air is split through the second air outlet 413 and enters the inner container 20.

It should be noted that, the second air outlet duct groove 414 is provided with a fixing block 51 facing the evaporator 80, the fixing block 51 is located above the evaporator 80, and the upper side of the evaporator 80 is close to the first cover plate 31, wherein the evaporator fan unit 50 is fixed on the fixing block 51. Preferably, the evaporator fan assembly 50 is, for example, a centrifugal fan.

With continued reference to fig. 5A to 5C, the plurality of sets of air return openings include a first air return opening 421 and a second air return opening 423, the first air return opening 421 is disposed at an edge of the bottom plate 22 near the fourth liner wall 27, and the second air return opening 423 is disposed at an edge of the first side wall 231 of the step portion 23 near the bottom plate 22. The first air return opening 421 and the second air return opening 423 may be similar to the first air outlet 411 (or the third air outlet 415), and include a plurality of openings, wherein the plurality of openings are longitudinally arranged in sequence, and the width (or the area) of each of the plurality of openings is sequentially increased or decreased along a third direction, which is defined as a direction extending from the second liner wall 25 toward the third liner wall 26, but not limited thereto. In other embodiments of the present invention, the first air return port 421 and the second air return port 423 may be elongated openings.

Corresponding to the first air return port 421 and the second air return port 423, a first air return channel groove 422 and a second air return channel groove 424 are respectively provided, wherein the first air return channel groove 422 is located between the bottom plate 22 and the bottom of the case 20, the second air return channel groove 424 is located between the bending partition plate and the step portion 23 at the bottom of the case 10, and the shape of the second air return channel groove 424 is similar to the shape of the step portion 23, that is, the second air return channel groove 424 comprises a horizontal air return channel groove 4242 and a vertical air return channel groove 4241, and the vertical air return channel groove 4241 is respectively communicated with the first air return channel groove 422 and the horizontal air return channel groove 4242. The air flow passage between the first return air passage groove 422 and the bottom plate 22 is a first return air passage, and the air flow passage between the second return air passage groove 424 and the step portion 23 is a second return air passage.

The second side wall 232 is provided with a return air duct connecting hole (not shown) corresponding to the region of the evaporator chamber, and the second return air duct is respectively communicated with the return air duct connecting hole and the first return air duct, so that air entering the first return air duct and the second return air duct from the first return air opening 421 and the second return air opening 422 enters the evaporator chamber through the return air duct connecting hole.

In this embodiment, since the second air outlet duct is substantially located in the evaporator chamber, in order to avoid interference between the return air and the air outlet, only the upper portion of the second air outlet duct is communicated with the evaporator fan set 50, and no gap exists between the lower portion of the second air outlet duct or the second air outlet duct slot 414 and the second side wall 232, so that the return air passing through the second air outlet duct cannot enter the second air outlet duct. The upper portion of the second air duct is adjacent to the first cover plate 31, and the lower portion of the second air duct is adjacent to the second side wall 232 of the stepped portion 23. In other words, the second air duct groove 414 provided in the evaporator chamber divides substantially the entire evaporator chamber into a left space and a right space, the left space is used as the second air outlet duct, the right space is used as the housing space of the evaporator 80, and the left space and the right space communicate only in the region where the evaporator fan set 50 is provided in the upper portion of the evaporator chamber. The upper portion of the evaporator chamber is the area near the first cover plate 31.

The air circulation in the horizontal refrigerator 400 comprises air outlet and return air, the evaporator fan unit 50 starts to work, air on one side of the evaporator 80 is sucked, the air is sent out from the other side of the evaporator fan unit 80 and enters the second air outlet duct, part of the air enters the inner container 20 through the second air outlet 413, part of the air enters the first air outlet duct and the third air duct through the first air outlet duct connecting hole and the second air outlet duct connecting hole respectively, and the air enters the inner container 20 through the corresponding first air outlet 411 and the third air outlet 415; air in the liner 20 enters the first air return channel and the second air return channel from the first air return port 421 and the second air return port 423 respectively, and enters a space between the second air outlet channel 414 in the evaporator chamber and the first liner wall 24 through the air return channel connecting holes.

The air circulation in the horizontal refrigerator 400 adjusts the positions of a plurality of groups of air outlets and a plurality of groups of air return inlets, so that a circulating mode of three-face air outlet of the inner container and return air at the position, close to the bottom plate, of the bottom of the inner container and the step part is formed, air outlet dead angles and return air dead angles are reduced, and each region in the inner container has uniform temperature.

Fig. 6A to 6C are schematic cross-sectional views of a horizontal refrigerator according to a fifth embodiment of the present invention at different viewing angles. In fig. 6A to 6C, the same reference numerals as those in fig. 1A to 2E denote the same elements, and have similar functions, and are not described in detail.

As shown in fig. 6A to 6C, a horizontal refrigerator 500, in particular, an air-cooled horizontal refrigerator according to a fifth embodiment of the present invention, wherein the horizontal refrigerator 500 is different from the horizontal refrigerator 100 in that: 1) The evaporator 80 located in the evaporator chamber may be in a "horizontal arrangement" or a "vertical arrangement"; 2) The setting positions of the plurality of groups of air outlets are different; 3) The setting positions of the plurality of groups of air return openings are different; 4) Different wind circulation caused by different sets of air outlets and air returns.

The bottom plate 22 of the liner 20 in the horizontal refrigerator 500 is bent to form a step part 23, the step part 23 comprises a first side wall 231 and a second side wall 232, and the step part 23 is respectively connected with the bottom plate 22 and the first liner wall 24; the air duct board is arranged on the second side wall 232, and comprises a first cover plate 31 and a second cover plate 32 which are connected with each other, wherein the first cover plate 31 is opposite to the second side wall 232, and the second cover plate 32 is opposite to the first liner wall 24; wherein the space between the air duct plate and the first liner wall 24 constitutes an evaporator chamber in which the evaporator 80 is disposed. The evaporator fan assembly 50 is disposed above the evaporator 80, or alternatively, the evaporator fan assembly 50 is positioned between the first cover plate 31 and the evaporator 80 adjacent the top of the horizontal freezer 500.

In this embodiment, the multiple sets of air outlets include a first air outlet 511 and a second air outlet 512, and the first air outlet 511 and the second air outlet 512 are respectively disposed on the second cover plate 32 of the air duct board. Preferably, the first air outlet 511 is disposed near the upper edge of the second cover plate 32, and the second air outlet 512 is disposed in the middle of the second cover plate 32, wherein the upper edge of the second cover plate 32 is near the first cover plate 31.

The first air outlet 511 includes a plurality of first air outlet openings, which are arranged along the longitudinal extension of the second cover plate 32, and each of the plurality of first air outlet openings has the same width and height, so that the area of each first air outlet opening is the same. Similarly, the second air outlet 512 includes a plurality of second air outlet openings, which are longitudinally arranged along the second cover plate 32, and each of the plurality of second air outlet openings has the same width and height, such that the area of each second air outlet opening is the same.

Corresponding to the first air outlet 511 and the second air outlet 512, the first air outlet channel 513 is disposed in the evaporator chamber, and the first air outlet channel 513 is located between the evaporator 80 and the second cover plate 32. The air flow channel between the first air outlet channel 513 and the second cover plate 32 is a first air outlet channel.

It should be noted that, the side of the first air outlet duct 513 facing the evaporator 80 is provided with a fixing block 51, the fixing block 51 is located above the evaporator 80, and the upper side of the evaporator 80 is close to the first cover plate 31, wherein the evaporator fan unit 50 is fixed on the fixing block 51. Preferably, the evaporator fan assembly 50 is, for example, a centrifugal fan.

With continued reference to fig. 6A to 6C, the plurality of sets of air returns include a first air return 521, a second air return 523, and a third air return 525, where the first air return 521 is disposed at an upper edge of the fourth liner wall 27, the second air return 523 is disposed at an edge of the bottom plate 22 near the fourth liner wall 27, and the third air return 525 is disposed at an edge of the first side wall 231 of the step portion 23 near the bottom plate 22.

A first return air duct groove 522, a second return air duct groove 524 and a third return air duct groove 526 are respectively arranged corresponding to the first return air opening 521, the second return air opening 523 and the third return air opening 525, wherein the first return air duct groove 522 is positioned between the fourth liner wall 27 and the box shell 10; the second return air duct groove 524 is located between the bottom plate 22 and the bottom of the cabinet 10; the third return air duct groove 526 is located between the bent partition plate and the step portion 23 at the bottom of the case 10, and the shape of the third return air duct groove 526 is similar to the shape of the step portion 23, that is, the third return air duct groove 526 includes a horizontal air duct groove 5262 and a vertical air duct groove 5261, and the vertical air duct groove 5261 communicates with the second return air duct groove 524 and the horizontal air duct groove 5262, respectively. The air flow passage between the first return air duct groove 522 and the fourth liner wall 27 is a first return air duct, the air flow passage between the second return air duct groove 524 and the bottom plate 22 is a second return air duct, and the air flow passage between the third return air duct groove 526 and the step portion 23 is a third return air duct.

The second side wall 232 is provided with a return air duct connecting hole (not shown) corresponding to the area of the evaporator chamber, and the third return air duct is respectively communicated with the return air duct connecting hole and the second return air duct, so that air from the first return air opening 521, the second return air opening 523 and the third return air opening 525 enters the first return air duct, the second return air duct and the third return air duct, and enters the evaporator chamber through the return air duct connecting holes.

Further, the first air outlet 511 on the second cover plate 32 is opposite to the first air return opening 521 on the fourth liner wall 27, where the vertical distance between the first air outlet 511 and the bottom plate 22 is equal to the vertical distance between the first air return opening 521 and the bottom plate 22, i.e. the first air outlet 511 is set at the same height as the first air return opening 521; similarly, the second air outlet 512 on the second cover plate 32 is opposite to the fourth air outlet 521' on the fourth liner wall 27, wherein the vertical distance between the second air outlet 512 and the bottom plate 22 is equal to the vertical distance between the fourth air outlet 521' and the bottom plate 22, i.e. the second air outlet 512 is at the same height as the fourth air outlet 521 '. The first return air outlet duct groove 521 'is provided between the fourth liner wall 27 and the casing 10, and an air flow passage between the fourth outlet duct groove 521' and the fourth liner wall 27 is a fourth return air duct groove. The air outlet and the air return opening are arranged at the same height on the upper part of the horizontal refrigerator liner, an air curtain can be formed between the air outlet and the air return opening, and then the air curtain is formed on the upper part of the horizontal refrigerator, so that external heat can be prevented from entering the liner from the glass door body at the top of the refrigerator box (the assembly of the box shell, the liner and the foaming layer), and the temperature balance of each region in the liner is ensured.

In this embodiment, since the first air outlet duct is substantially located in the evaporator chamber, in order to avoid interference between the return air and the air outlet, only the upper portion of the first air outlet duct is communicated with the evaporator fan set 50, and no gap exists between the lower portion of the first air outlet duct or the bottom of the first air outlet duct slot 513 and the second side wall 232, so that the return air passing through the third air outlet duct does not enter the first air outlet duct. The upper part of the first air outlet duct is close to the first cover plate 31, and the lower part of the first air outlet duct is close to the second side wall 232 of the step part 23. In other words, the first air duct groove 513 provided in the evaporator chamber substantially divides the entire evaporator chamber into a left space and a right space, the left space is used as the first air outlet duct, the right space is used as the housing space of the evaporator 80, and the left space and the right space communicate only in the area where the evaporator fan set 50 is provided in the upper portion of the evaporator chamber. The upper portion of the evaporator chamber is the area near the first cover plate 31.

The air circulation in the horizontal refrigerator 500 comprises air outlet and return air, the evaporator fan unit 50 starts to work, air on one side of the evaporator 80 is sucked in, the air is sent out from the other side of the evaporator fan unit 50, enters a first air outlet channel, and enters the inner container 20 through a first air outlet 511 and a second air outlet 513 respectively; the air in the liner 20 enters the first return air duct, the second return air duct, the third return air duct and the fourth return air duct from the first return air duct 521, the second return air duct 523, the third return air duct 525 and the fourth return air duct 521', respectively, enters between the first air outlet duct slot 513 and the first liner wall 24 in the evaporator chamber through the return air duct connecting holes, and circulates from the evaporator 80 towards the evaporator fan set 50.

The air circulation in the horizontal refrigerator 500 adjusts the positions of a plurality of groups of air outlets and a plurality of groups of air returns, wherein the air outlets and the air returns are arranged on two opposite side surfaces of the inner container at the same height and are positioned on the upper part of the inner container, and an air curtain is formed on the upper part of the horizontal refrigerator in the process that air flows from the air outlets towards the air returns, so that external heat can be prevented from entering from a glass door body at the top of the horizontal refrigerator, and the temperature uniformity of each region in the inner container is maintained.

Fig. 7A to 7C are schematic cross-sectional views of a horizontal refrigerator according to a sixth embodiment of the present invention at different viewing angles. In fig. 7A to fig. 7C, the same reference numerals as those in fig. 1A to fig. 2E denote the same elements, and have similar functions, and are not repeated.

As shown in fig. 7A to 7C, a horizontal refrigerator 600, in particular, an air-cooled horizontal refrigerator according to a sixth embodiment of the present invention, wherein the horizontal refrigerator 600 is different from the horizontal refrigerator 100 in that: 1) The evaporator 80 located in the evaporator chamber may be in a "horizontal arrangement" or a "vertical arrangement"; 2) The setting positions of the evaporator fan units 50 are different; 3) The setting positions of the plurality of groups of air outlets are different; 4) The setting positions of the plurality of groups of air return openings are different; 5) Different wind circulation caused by different sets of air outlets and air returns.

The bottom plate 22 of the liner 20 in the horizontal refrigerator 600 is bent to form a step part 23, the step part 23 comprises a first side wall 231 and a second side wall 232, and the step part 23 is respectively connected with the bottom plate 22 and the first liner wall 24; the air duct board is arranged on the second side wall 232, and comprises a first cover plate 31 and a second cover plate 32 which are connected with each other, wherein the first cover plate 31 is opposite to the second side wall 232, and the second cover plate 32 is opposite to the first liner wall 24; wherein the space between the air duct plate and the first liner wall 24 constitutes an evaporator chamber in which the evaporator 80 is disposed. The evaporator fan assembly 50 is disposed on the second sidewall 232 and on a side of the second cover plate 32 away from the first liner wall 24. In other words, the evaporator 80 is disposed on a first side of the second cover plate 32, the evaporator fan assembly 50 is disposed on a second side of the second cover plate 32, the first side is opposite to the second side, and the first side faces the first liner wall.

In an embodiment, the air duct board further includes an extension cover plate, where the extension cover plate is located on the second side of the second cover plate 32, and the extension cover plate includes a third cover plate 33 and a fourth cover plate 34 that are connected to each other, where the third cover plate 33 connects the second cover plate 32 and the fourth cover plate 34 (or the third cover plate 33 is located on the second cover plate 32 and the fourth cover plate 34), and the fourth cover plate 34 is parallel and opposite to the second cover plate 32, and the third cover plate 33 is parallel and opposite to the second sidewall 232. In the present embodiment, the first cover plate 31 to the fourth cover plate 34 may be integrally formed. The space between the extension cover plate and the second side wall 32 is used to house the evaporator fan assembly 80.

The multiple rows of first air outlets 611 are arranged on the bottom plate 22 of the liner 20, and the multiple rows of first air outlets 611 are sequentially arranged along the longitudinal direction of the bottom plate 22; each row of first air outlets 611 includes a plurality of first air outlet openings, the plurality of first air outlet openings are arranged along the transverse direction of the bottom plate 22, and the width or the area of each of the plurality of first air outlet openings is gradually increased in the transverse direction of the bottom plate 22.

Corresponding to the above-described plural rows of the first air outlets 611, plural rows of the first air outlet duct grooves 612 are provided between the bottom plate 22 and the bottom of the casing 10. The air flow channels between the rows of first outlet channel slots 612 and the bottom plate 22 are rows of first outlet channels. The connecting part can be arranged between two adjacent first air outlet channels in the plurality of rows of first air outlet channels, and the plurality of rows of first air outlet channels are communicated with each other by the connecting part.

In this embodiment, since the evaporator fan unit 50 is disposed on the second side wall 232, in order to make the first air outlet channel communicate with the evaporator fan unit 50, the evaporator fan unit further includes a second air outlet channel groove 613, and the second air outlet channel groove 613 is disposed between the first side wall 231 and the bent partition plate at the bottom of the case 10; the air circulation channel between the second air outlet channel 613 and the first side wall 231 is a second air channel, and two ends of the second air channel are respectively communicated with the multiple rows of first air channels and the evaporator fan set 50; that is, the air from the evaporator fan assembly 50 first enters the second air duct, then enters the plurality of rows of first air ducts, and enters the liner 20 through the plurality of rows of first air outlets 611 on the bottom plate 22.

Wherein, the first air outlets of the multiple rows are arranged on the bottom plate 22 of the inner container 20 to form the air outlet at the bottom of the inner container 20, so that the air blown onto the glass door body at the top of the horizontal refrigerator 600 can be reduced, and the risk of condensation of the glass door body can be further reduced.

With continued reference to fig. 7A to 7C, the plurality of sets of air returns include a first air return 621, a second air return 622, and a third air return 624, where the first air return 621 is disposed on the first cover 31, the second air return 622 is disposed on an upper edge of the second liner wall 25, and the third air return 624 is disposed on an upper edge of the third liner wall 26.

A first air return duct groove 623 and a second air return duct groove 625 are respectively arranged corresponding to the second air return port 622 and the third air return port 624, wherein the first air return duct groove 623 is positioned between the second liner wall 25 and the case 10; the second return air duct groove 625 is located between the third liner wall 26 and the cabinet 10. The air flow channel between the first air return channel groove 623 and the second liner wall 25 is a first air return channel, and the air flow channel between the second air return channel groove 625 and the third liner wall 26 is a second air return channel.

A first return air duct connecting hole (not shown) is formed in the second liner wall 25, and a second return air duct connecting hole (not shown) is formed in the third liner wall 26, wherein the first return air duct connecting hole is communicated with the upper part of the evaporator chamber and the first return air duct; the second return air duct connecting hole is communicated with the upper part of the evaporator chamber and the second return air duct.

In order to realize the flow guiding of the air flowing back from the first air return duct connecting hole and the second air return duct connecting hole to the upper part of the evaporator chamber, a flow guiding baffle plate 31' is arranged between the first cover plate 31 and the evaporator 80, a third air return duct is formed by the space between the flow guiding baffle plate 31' and the first cover plate 31, at least one air return hole is arranged on the flow guiding baffle plate 31' corresponding to the upper part of the evaporator 80, and the air flowing back from the upper part of the evaporator 80 to the lower part of the evaporator 80 flows through the at least one air return hole. The upper side of the evaporator 80 is close to the first cover plate 31, and the lower side of the evaporator 80 is close to the second side wall 232 of the stepped portion 23.

In this embodiment, since the baffle 31' is located at the upper portion of the evaporator chamber, and the baffle 31' physically separates the evaporator chamber into an upper space and a lower space, the upper space serves as the third return air duct, the lower space serves as the storage space of the evaporator 80, and the upper space and the lower space are mutually communicated through the plurality of return air holes on the baffle 31 '.

The air circulation in the horizontal refrigerator 600 comprises air outlet and return air, the evaporator fan unit 50 starts to work, air on one side of the evaporator 80 is sucked, the air is sent out from the other side of the evaporator fan unit 50, enters the first air outlet channel from the second air channel, and enters the inner container 20 through a plurality of groups of first air outlets 611 respectively; the air in the liner 20 enters the first return air duct, the second return air duct and the third return air duct from the first return air duct 621, the second return air duct 622 and the third return air duct respectively, enters the lower space in the evaporator chamber through the plurality of return air holes on the flow guide partition plate 31', circulates from the upper side of the evaporator 80 to the lower side of the evaporator 80, and is sucked by the evaporator fan set 50.

The air circulation in the horizontal refrigerator 600 adjusts the positions of a plurality of groups of air outlets and a plurality of groups of air returns, wherein the air outlets are arranged on the bottom plate of the inner container, the air returns are arranged on the wall of the inner container and the air duct plate close to the top of the horizontal refrigerator, and the air can be reduced from blowing onto the glass door body at the top of the horizontal refrigerator 600, so that the condensation risk of the glass door body is reduced.

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 (9)

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 inner container comprises a bottom plate, a step part and a first inner container wall, wherein the step part is respectively connected with the bottom plate and the first inner container wall, the step part comprises a first side wall and a second side wall which are mutually connected, and the second side wall is connected with the first inner container wall;

the air duct plate is arranged on the second side wall, and the space between the air duct plate and the first liner wall forms an evaporator chamber;

The evaporator and the evaporator fan set are respectively arranged on the second side wall, the air duct plate comprises a first cover plate and a second cover plate, the second cover plate is opposite to the first liner wall, the evaporator is arranged on a first side of the second cover plate, the evaporator fan set is arranged on a second side of the second cover plate, the first side is opposite to the second side, and the first side faces the first liner wall;

the horizontal refrigerator further comprises a plurality of rows of first air outlets which are arranged on the bottom plate, wherein the plurality of rows of first air outlets are sequentially arranged along the longitudinal direction of the bottom plate;

the inner container further comprises a second inner container wall and a third inner container wall which are oppositely arranged, the first inner container wall is positioned between the second inner container wall and the third inner container wall, the second inner container wall and the third inner container wall are lateral walls extending transversely, the first inner container wall is a lateral wall extending longitudinally, and the first air return port is arranged on the first cover plate; the second air return port is arranged at the upper edge of the second liner wall, and the third air return port is arranged at the upper edge of the third liner wall.

2. The horizontal cooler of claim 1, wherein said air duct plate comprises an extending cover plate disposed on said second side of said second cover plate, and wherein a space between said extending cover plate and said second side wall is configured to receive said evaporator fan assembly.

3. The chest freezer of claim 1, wherein the first cover is parallel to the second side wall.

4. The horizontal cooler of claim 1, wherein each row of first air outlets comprises a plurality of first air outlet openings, the plurality of first air outlet openings are sequentially arranged along the transverse direction of the bottom plate, and the width or area of each of the plurality of first air outlet openings is gradually increased along the transverse direction.

5. The horizontal cooler of claim 4, further comprising a first air outlet channel and a second air outlet channel, said first air outlet channel corresponding to said plurality of rows of first air outlets and disposed between said bottom plate and the bottom of said housing; the second air outlet channel is arranged between the first side wall and the bending partition plate of the box shell.

6. The horizontal cooler of claim 1, wherein a first return duct slot is disposed corresponding to said first return air inlet, said first return duct slot being disposed between said second liner wall and said housing; and a second return air duct groove is arranged corresponding to the third return air inlet, and the second return air duct groove is positioned between the third liner wall and the box shell.

7. The horizontal cooler of claim 6, further comprising a baffle disposed in said evaporator chamber and disposed between said first cover plate and said evaporator.

8. The chest freezer of claim 7, wherein the baffle has at least one return air hole in a region corresponding to the evaporator, the at least one return air hole allowing air between the first cover and the baffle to flow to the evaporator.

9. The horizontal cooler of claim 1, wherein said bottom plate is folded toward said container to form said step.

Images