CN111351282A

CN111351282A - Horizontal refrigerator

Info

Publication number: CN111351282A
Application number: CN201811583461.0A
Authority: CN
Inventors: 丁剑波; 张奎; 李大伟; 成俊亮; 徐磊; 廉锋
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: 2020-06-30
Anticipated expiration: 2038-12-24
Also published as: CN111351282B

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 and 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 a space between the air duct plate and the first inner container wall forms an evaporator chamber; wherein, evaporimeter and evaporimeter fan group set up respectively on this second lateral wall, and this wind channel board includes first apron and second apron, and this second apron is relative with this first inner bag wall, and this evaporimeter sets up in the first side of this second apron, and this evaporimeter fan group sets up in the second side of this second apron, and this first side and this second side back of the body mutually, and this first side is towards this first inner bag 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 which keeps constant low temperature, is an electric appliance which is common in life and is used for preserving food or other articles at low temperature, and is widely applied to the fields of commerce and household.

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

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

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

Disclosure of Invention

The invention aims to provide a horizontal refrigerator, which has more uniform temperature distribution and is not easy to dewing on a glass door body above an inner container by changing the position of an air port and the wind circulation mode in the inner container.

The invention provides a horizontal refrigerator, which comprises a box body, wherein the box body comprises a box shell and an inner container, the inner container is embedded in the box shell and 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 a space between the air duct plate and the first inner container wall forms an evaporator chamber; wherein, evaporimeter and evaporimeter fan group set up respectively on this second lateral wall, and this wind channel board includes first apron and second apron, and this second apron is relative with this first inner bag wall, and this evaporimeter sets up in the first side of this second apron, and this evaporimeter fan group sets up in the second side of this second apron, and this first side and this second side back of the body mutually, and this first side is towards this first inner bag wall.

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

As an optional technical solution, the first cover plate is parallel to the second side wall.

As an optional technical solution, the air conditioner further includes a plurality of rows of first air outlets disposed on the bottom plate, wherein the plurality of rows of first air outlets are sequentially arranged along a longitudinal direction of the bottom plate, each row of the first air outlets includes a plurality of first air outlet openings, the plurality of first air outlet openings are sequentially arranged along a transverse direction of the bottom plate, and a width or an area of each of the plurality of first air outlet openings gradually increases along the transverse direction.

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

As an optional technical solution, the liner further includes a second liner wall and a third liner wall which are oppositely disposed, the first liner wall is located between the second liner wall and the third liner wall, the second liner wall and the third liner wall are transversely extending side walls, the first liner wall is a longitudinally extending side wall, and the first air return opening is disposed on the first cover plate; the second air return opening is arranged at the upper edge of the second inner container wall, and the third air return opening is arranged at the upper edge of the third inner container wall.

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

As an optional technical solution, the evaporator further includes a baffle plate disposed in the evaporator chamber, and the baffle plate is disposed between the first cover plate and the evaporator.

As an optional technical solution, at least one air return hole is disposed in a region of the baffle plate corresponding to the evaporator, and the air between the first cover plate and the baffle plate flows to the evaporator through the at least one air return hole.

As an optional technical solution, the bottom plate is bent towards the accommodation of the inner container to form the step portion.

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

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

Drawings

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

FIG. 1B is a schematic view of the evaporator of FIG. 1A.

Fig. 2A to fig. 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 line region a in fig. 2C.

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

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 freezer in a fourth embodiment of the invention at different viewing angles.

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

Fig. 7A to 7C are schematic views of a horizontal freezer in a sixth embodiment of the invention at different viewing angles.

Detailed Description

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

Fig. 1A is an exploded view of a horizontal refrigerator according to 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 line region A in FIG. 2C; fig. 2E is a schematic view of the baffle plate disposed in the evaporator of fig. 2D.

As shown in fig. 1A, the horizontal freezer 100 in the first embodiment of the invention, in particular, an air-cooled horizontal freezer, includes a box 10 and a liner 20 embedded in the accommodating space 11 of the box 10, wherein the liner 20 has an accommodating 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 accommodating portion 21 to form the step portion 23, the step portion 23 includes, for example, 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 this embodiment, the step portion 23 is a right-angled structure, and the first sidewall 231 is perpendicular to the bottom plate 22, and the second sidewall 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-angled structure, for example, an included angle between the first side wall and the bottom plate is an acute angle or an obtuse angle, an included angle between the first side wall and the right angle of the second side wall is an acute angle or an obtuse angle, and an included angle between the second side wall and the first inner container wall is an acute angle or an obtuse angle. Furthermore, 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 forms an evaporator chamber, in which the evaporator 40 is disposed. Wherein the evaporator 40 is fixed to the second sidewall 232 of the step 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 through the plurality of fins 43, wherein the evaporator 40 is arranged in a "vertical manner", and the vertical 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 perpendicular to the fins 43 in the evaporator 40. Further, the evaporator 40 is of a "vertical arrangement" structure, the number of coils 44 which are smaller but longer are used to penetrate through the plurality of fins 43, and compared with the "horizontal arrangement" structure of the evaporator, the number of coils which are larger and have smaller lengths are used to penetrate through the plurality of fins, the "vertical arrangement" is easier to produce in the actual manufacturing process, and the working efficiency of the evaporator is higher.

With 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, the second liner wall 25 and the third liner wall 26 respectively extend upward from two opposite sides of the bottom plate 22, and two 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 air outlets and air outlet passage connecting holes 253, the plurality of air outlets include 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 located in the middle of the second liner wall 25 or is located at the lower part of the middle of the second liner wall 25, and the upper edge of the second liner wall 25 is far away from the bottom plate 22. The first outlet 251 has a plurality of first outlet openings 2511, the second outlet 252 has a plurality of second outlet openings 2521, the first outlet openings 2511 and the second outlet openings 2521 respectively penetrate through the second inner container wall 25, and the first outlet openings 2511 and the second outlet openings 2521 are respectively arranged transversely along the second inner container wall 25. Corresponding to the multiple sets of air outlets, multiple sets of air outlet cover plates are arranged on one side of the second liner wall 25 facing the accommodating portion 21, the multiple sets of air outlet cover plates include 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 outlet cover plate 255 is provided with a first air outlet microstructure 2551 in a region corresponding to the first air outlet opening 2511, the second air outlet cover plate 256 is provided with a second air outlet microstructure 2561 in a region corresponding to the second air outlet opening 2521, and the first air outlet microstructure 2551 and the second air outlet microstructure 2561 are, for example, a micro-porous structure, an air outlet grille and the like, and are used for adjusting the air outlet volume and the air outlet direction of the first air outlet opening 2511 and the second air outlet opening 2561. Preferably, the first air outlet microstructure 2551 and the second air outlet microstructure 2561 are respectively of a micro-porous structure, the micro-porous structure penetrates through the corresponding air outlet cover plate (the first air outlet cover plate 255 or the second air outlet cover plate 256), and the micro-porous structure extends obliquely upward from the outer surface of the corresponding air outlet cover plate and penetrates through the inner surface of the corresponding air outlet cover plate, wherein the outer surface is opposite to the inner surface, the outer surface faces the third inner container wall 26, and the inner surface faces the second inner container wall 25. The micro-porous structure extends obliquely upwards in the corresponding air outlet cover plate, so that the air sent out from the micro-porous structure circulates towards the bottom of the inner container 20.

In this embodiment, the first outlet cover plate 255 and the second outlet cover plate 256 can be coupled to the second inner container wall 25 by welding, fastening, or screwing, but not limited thereto. In other embodiments of the present invention, the first air outlet cover plate and the second air outlet cover plate are integrally formed with, for example, a second inner container wall of the inner container, wherein the first air outlet cover plate and the second air outlet cover plate correspond to regions of the first air outlet opening and the second air outlet opening, and the first air outlet microstructure and the second air outlet microstructure can be formed by hollowing. The first air outlet microstructure and the second air outlet microstructure are, for example, a microporous structure, an air outlet grille, etc.

In addition, the air outlet duct connecting hole 253 is disposed in a region of the second liner wall 25 close to the first liner wall 24, and the air outlet duct connecting hole 253 is located above the second sidewall 23 of the stepped 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 air return openings and air return duct connection holes 263, the air return openings include a first air return opening 261 and a second air return opening 262, the first air return opening 261 is close to the upper edge of the third liner wall 26, the second air return opening 262 is located in the middle of the third liner wall 26 or is located at the lower part of the middle of the third liner wall 26, and the upper edge of the third liner wall 26 is far away from the bottom plate 22. The first air return opening 261 has a plurality of first air return openings 2611, the second air return opening 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 inner container wall 26, and the plurality of first air return openings 2611 and the second air return openings 2621 are respectively arranged along the third inner container wall 26 in a transverse direction. Corresponding to the multiple sets of air return openings, multiple sets of air return cover plates are arranged on one side of the third inner container wall 26 facing the accommodating part 21, the multiple sets of air return cover plates comprise a first air return cover plate 265 and a second air return cover plate 266, the first air return cover plate 265 corresponds to the first air return opening 261, and the second air return cover plate 266 corresponds to the second air return opening 262; the first return air microstructure 2651 is disposed in a region of the first return air cover 265 corresponding to the first return air opening 2611, the second return air microstructure 2661 is disposed in a region of the second return air cover 266 corresponding to the second return air opening 2621, and the first return air microstructure 2651 and the second return air microstructure 2661 are, for example, a micro-porous structure, a return air grid, and the like, and are used for adjusting the return air volume and the return air direction of the first return air opening 2611 and the second return air opening 2661. Preferably, the first air return microstructure 2651 and the second air return microstructure 2661 are air return grilles respectively.

In this embodiment, the first air return cover plate 265 and the second air return cover plate 266 can be welded, fastened or screwed to the third inner container wall 26, but not limited thereto. In other embodiments of the present invention, the first and second air return cover plates are integrally formed with, for example, a second inner container wall of the inner container, wherein the first and second air return cover plates correspond to the regions of the first and second air return openings, and the first and second air return microstructures can be formed by hollowing. The first air return microstructure and the second air return microstructure are, for example, air return grilles and the like.

In addition, the air return duct connecting hole 263 is disposed in a region of the third inner container wall 26 close to the first inner container wall 24, and the air return duct connecting hole 263 is located above the second side wall 23 of the step portion 23, wherein the air return duct connecting hole 263 is communicated 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 and the second air outlet 252 is lower than the lower edge of the food basket according to the size and the placement position of the food basket; similarly, the first return air opening 261 is higher than the upper edge of the basket; the second air return openings 262 are below the lower edge of the food basket.

With continued reference to fig. 1A, 2A to 2C, the air duct plate 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 to and opposite to the second side wall 232, and the second cover plate 32 is parallel to 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 "vertically disposed," and the evaporator 40 includes opposite first and second ends 41, 42, wherein the first end 41 is adjacent to the third inner bladder wall 26 and the second end 42 is adjacent to the second inner bladder wall 25. The evaporator fan unit 50 is disposed between the second end 42 and the second inner container wall 25. The air outlet side of the evaporator fan unit 50 corresponds to the air outlet duct connection hole 243, and the first end 41 of the evaporator 40 corresponds to the return duct connection hole 253.

Further, the horizontal refrigerator 100 further includes an air outlet duct 254 and an air return duct 264, the air outlet duct 254 is disposed between the second inner container wall 25 of the inner container 20 and the box casing 10, and the air return duct 264 is disposed between the third inner container wall 26 of the inner container 20 and the box casing 10. The foaming layer 60 is filled between the box shell 10 and the inner container 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 box shell 10 and the inner container 20, the volume of the accommodating part of the inner container 20 is not occupied, the horizontal refrigerator is more attractive, and the space utilization rate of the inner container is improved. The air outlet channel 254 is used to communicate the first air outlet 251, the second air outlet 252 and the air outlet channel connecting hole 253; the return duct groove 264 is used for communicating the first return port 261, the second return port 262 and the return duct connecting hole 263; wherein, the air channel between the air outlet channel 254 and the second inner container wall 25 is an air outlet channel, and the air channel between the air return channel 264 and the third inner container wall 26 is an air return channel.

Referring to fig. 2C to 2D, the evaporator 40 is located in the middle area of the entire evaporator chamber, and at least one baffle plate is further disposed in the evaporator 40, the at least one baffle plate being parallel to the fins 43, the at least one baffle plate including, for example, a first baffle plate 45, a second baffle plate 46, and a third baffle plate 47, the first baffle plate 45 being located at the first end portion 41 of the evaporator 40, the second baffle plate 46 being located in the middle of the evaporator 40, and the third baffle plate 47 being located at the second end portion 42 of the evaporator 40; the first to third shutters 47 are used to change the direction of air flow in the evaporator chamber. Specifically, when the evaporator fan unit 50 is in operation, the suction side of the evaporator fan unit 50 faces the evaporator 40, so that air sucked by the evaporator fan unit 50 first passes through the evaporator 40, enters the evaporator chamber in the flow direction indicated by the arrow F in fig. 1B due to the first baffle 45 being parallel to the fins 43, and flows toward the upper portion of the evaporator chamber after encountering the first baffle 45, and is blocked by the first cover plate 31 at the upper portion from flowing further toward the lower portion of the evaporator chamber along the gaps between the plurality of fins 43 and passing through the gap between the second baffle 46 at the middle of the evaporator 40 and the second side wall 232 of the step portion 23; part of the air is blocked by the plurality of fins 43 between the second blocking plate 46 and the third blocking plate 47, continues to flow toward the upper portion of the evaporator chamber through the gaps between the plurality of fins 43, passes through the third blocking plate 47, and is sucked into the evaporator fan unit 40. The first to

third baffles

45, 46 and 47 are arranged to change the path of the sucked air flowing through the evaporator 40, so that the path of the air flowing through the evaporator 40 is extended, the air is fully treated by the evaporator 40, and the air treatment efficiency is improved.

The number and the installation position of at least one baffle in the evaporator 40 are not limited to the first baffle 45 and the third baffle 47. That is, in other embodiments of the invention, the number of baffles in the evaporator may be increased or decreased, and may be 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 step portion 23.

Further, the first to third baffles 45 to 47 in the evaporator 40 have, for example, a similar structure. In practical preparation, the first baffle 45 to the third baffle 47 may be respectively formed by stacking a plurality of fins 43 on each other to form a fin structure with a thicker thickness; of course, a thicker plate structure made of a similar material to the fins 43 is also possible. 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 pipe 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, which is closer to the evaporator fan set 50, is higher than the first end 41 of the evaporator 40, which is farther from the evaporator fan set 50, to facilitate the discharge of the defrost water produced by the evaporator 40 out of the evaporator chamber. A water receiving box (not shown) is disposed between the evaporator 40 and the second side wall 232, and the water receiving box is used for receiving the defrosting water. The water receiving box is disposed between the evaporator 40 and the second side wall 232, and has a water outlet communicated with the outside of the evaporator chamber.

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

The air circulation in the horizontal refrigerator 100 according to the first embodiment of the present invention includes air supply and air return, after the evaporator fan set 50 starts to work, air is sucked from one side of the evaporator fan set facing the evaporator 40, and air is sent from one side of the evaporator fan set facing the air outlet duct connecting hole 253, the sent air enters the air outlet duct from the air outlet duct 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 inner container 20 enters the first air return opening 261 and the second air return opening 262 through the air return microstructures on the first air return cover plate 265 and the second air return cover plate 266, then circulates through the air return duct, enters the evaporator cavity through the air return duct connecting hole 263, and is guided by the at least one baffle plate and the plurality of fins 43 of the evaporator 40, so that the air of the return air circulates from the first end 41 of the evaporator 40 toward the second end 42, and is continuously sucked by the evaporator fan unit 50 after being reprocessed by the evaporator 40, and continuously participates in circulation.

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

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

Therefore, in the horizontal refrigerator provided in the first embodiment of the present invention, the air duct plate is disposed on the second side wall of the stepped portion, a space between the air duct plate and the first side wall of the inner container forms an evaporator chamber, and the evaporator is "vertically disposed" in the evaporator chamber, which is beneficial to improving the working efficiency of the horizontal refrigerator. Furthermore, by providing at least one baffle in the evaporator to cause the direction of circulation of air entering the evaporator chamber to change, the air contacts the evaporator more fully 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 in fig. 1A to 2E denote the same elements, and have similar functions, which are not repeated herein.

As shown in fig. 3A-3D, a second embodiment of the present invention provides a horizontal cooler 200, and in particular an air-cooled horizontal cooler, which differs from the horizontal cooler 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 through the plurality of fins 43', wherein the evaporator 40 'is arranged in a "horizontal manner", and the "horizontal manner" 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, the 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 plate for changing the air circulation direction is provided.

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 4C, the same reference numerals as those in fig. 1A to 2E denote the same elements, and have similar functions, which are not repeated herein.

As shown in fig. 4A-4C, a third embodiment of the present invention provides a chest cooler 300, particularly an air-cooled chest cooler, which differs from the chest cooler 100 in that 1) the evaporator 40' is "horizontally disposed" in the evaporator chamber; 2) the air outlet channel 254 'and the air return channel 264' have different structures; 3) the structure of the air outlet opening and the structure of the air return opening are different.

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 through the plurality of fins 43', wherein the evaporator 40 'is "horizontally disposed", and the "horizontal disposition" means that when air flows through the evaporator 40' along the flow direction indicated by the arrow F, the flow direction of the air is parallel to the fins 43 'in the evaporator 40'; that is, the 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 is not provided with a baffle for changing the air flow direction.

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 and a first vertical channel, the first horizontal channel is connected to the air outlet channel connection port 253 (shown in fig. 1A) and the first vertical channel, the first vertical channel is connected to a first upper channel and a first lower channel of the air outlet channel 254', the first upper channel corresponds to the first air outlet 251 (shown in fig. 1A), the first lower channel corresponds to the second air outlet 252 (shown in fig. 1A), 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 through the second inner container wall 25. The first T-shaped connection portion 2541 allows air sent by the evaporator fan unit 50 to enter the first horizontal channel groove from the air outlet channel connection hole 253, and to enter the first upper channel groove and the first lower channel groove respectively by being divided by the first vertical channel groove communicated with the first horizontal channel groove. The first upper access slot is proximate the upper edge of the first liner wall 25 (shown in fig. 1A) and the first lower access slot is proximate the lower edge of the first liner wall 25.

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

In this embodiment, a structure in air outlet channel groove and return air channel groove of difference is provided, wherein the air that the evaporimeter fan group blew off or inspiratory air can cushion in above-mentioned T type connecting portion, through the route of extension air circulation, can make air-out and return air more even, and also can reduce the noise of wind that goes out of horizontal freezer during operation. Similar to the horizontal cooler 100, the evaporator 40 ' of the horizontal cooler 300 includes opposite first and second ends 41 ', 42 ', wherein the first end 41 ' is proximate to the third inner container wall 26 and the second end 42 ' is proximate to the second inner container wall 25. The evaporator fan unit 50 is disposed between the second end 42 and the second inner container wall 25. Wherein the second end 42 'of the evaporator 40' near the evaporator fan set 50 is higher than the first end 41 'of the evaporator 40 far from the evaporator fan set 50, so as to facilitate the discharge of the defrosting water generated by the evaporator 40' to the outside of the evaporator cavity. A water receiving box (not shown) is disposed between the evaporator 40' and the second side wall 232, and the water receiving box is used for receiving the defrosting water. The water-receiving receptacle is disposed between the evaporator 40' and the second side wall 232, and has a water outlet communicating with the outside of the evaporator chamber.

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

As shown in fig. 5A to 5C, the horizontal refrigerator 400 according to the fourth embodiment of the present invention, particularly an air-cooled horizontal refrigerator, 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 air outlets are different, and the design of air outlet openings of the air outlets is different; 3) the arrangement positions of the multiple groups of air return openings are different; 4) due to different air circulations caused by the difference of the air outlets and the air return inlets.

A bottom plate 22 of an inner container 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 a first inner container wall 24; the air duct plate is arranged on the second side wall 232, and the air duct plate comprises a first cover plate 31 and a second cover plate 32 which are connected with each other, 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 inner container wall 24 constitutes an evaporator chamber, in which the evaporator 80 is arranged. The evaporator fan unit 50 is disposed above the evaporator 80, or the evaporator fan unit 50 is located between the first cover plate 31 and the evaporator 80; the evaporator fan unit 50 is adjacent the top of the chest cooler 400.

In this embodiment, the plurality 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 inner container wall 25, the second air outlet 413 is disposed in the middle of the second cover 32, and the third air outlet 415 is disposed in the middle of the third inner container 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 a width W of each of the plurality of first air outlet openings increases sequentially along a first direction, which defines the first direction 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 third air outlet openings are arranged to extend transversely, and the width W of each third air outlet opening in the third air outlet openings increases along the second direction, which defines the second direction as the direction in which the first liner wall 24 extends toward the fourth liner wall 27. Preferably, the height of each first air outlet opening is the same, and taking each first air outlet opening as a rectangle as an example, the area of the plurality of first air outlet openings is gradually increased along the first direction; similarly, the height of each second air outlet opening is the same, and taking each second air outlet opening as a rectangle as an example, the area of the plurality of second air outlet openings gradually increases along the second direction.

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

Corresponding to the first to third outlets 411, 413, 415, the first air outlet duct groove 412 is disposed between the second liner wall 25 and the cabinet housing 10, and a space flow-through space between the first air outlet duct groove 412 and the second liner wall 25 is used as a first air outlet duct; the second air outlet channel 414 is disposed in the evaporator cavity 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 duct slot 416 is arranged between the third inner container wall 26 and the box shell, and an air circulation space between the third air outlet duct slot 416 and the third inner container wall 26 is a third air outlet duct; wherein, a first air outlet duct connecting hole (not shown) is arranged on the second inner container wall 25, a second air outlet duct connecting hole (not shown) is arranged on the third inner container wall 26, 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 by the evaporator fan set 50 firstly enters the second air outlet duct, and then 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 shunted by the second air outlet 413 and enters the inner container 20.

It should be noted that the second air outlet channel 414 is provided with a fixed block 51 on a side facing the evaporator 80, the fixed 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 fixed block 51. Preferably, the evaporator fan set 50 is a centrifugal fan, for example.

With reference to fig. 5A to 5C, the multiple sets of air returns include a first air return 421 and a second air return 423, the first air return 421 is disposed on the bottom plate 22 near the edge of the fourth liner wall 27, and the second air return 423 is disposed on the first sidewall 231 of the step portion 23 near the edge of 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, and the plurality of openings are sequentially and longitudinally arranged, and a width (or an area) of each of the plurality of openings sequentially increases or decreases 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 opening 421 and the second air return opening 423 may also be elongated openings.

Corresponding to the first air return opening 421 and the second air return opening 423, a first air return channel groove 422 and a second air return channel groove 424 are respectively arranged, wherein the first air return channel groove 422 is located between the bottom plate 22 and the bottom of the box shell 20, the second air return channel groove 424 is located between the bent partition plate at the bottom of the box shell 10 and the step part 23, the shape of the second air return channel groove 424 is similar to that of the step part 23, that is, the second air return channel groove 424 comprises a horizontal air channel groove 4242 and a vertical air channel groove 4241, and the vertical air channel groove 4241 is respectively communicated with the first air return channel groove 422 and the horizontal air channel groove 4242. The air circulation channel between the first air return channel 422 and the bottom plate 22 is a first air return channel, and the air circulation channel between the second air return channel 424 and the step portion 23 is a second air return channel.

The second side wall 232 is provided with a return air duct connecting hole (not shown) corresponding to the region of the evaporator cavity, 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 port 421 and the second return air port 422 enters the evaporator cavity through the return air duct connecting hole.

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

The air circulation in the horizontal refrigerator 400 includes air-out and air-back, the evaporator fan set 50 starts to work, sucks air on one side of the evaporator 80, sends the air out from the other side of the evaporator fan set 80, enters the second air outlet channel, partially enters the inner container 20 through the second air outlet 413, partially enters the first air outlet channel and the third air channel through the first air outlet channel connecting hole and the second air outlet channel connecting hole respectively, and then enters the inner container 20 through the corresponding first air outlet 411 and the third air outlet 415; the air in the inner container 20 enters the first air return duct and the second air return duct from the first air return opening 421 and the second air return opening 423, respectively, and enters between the second air outlet duct groove 414 in the evaporator chamber and the first inner container wall 24 through the air return duct connecting hole.

The positions of a plurality of groups of air outlets and a plurality of groups of air return inlets are adjusted through air circulation in the horizontal refrigerator 400, a circulation mode that air returns are formed at the positions, close to the bottom plate, of the bottoms and the step portions of the inner container, three sides of the inner container are exhausted, air outlet dead angles and air return dead angles are reduced, and therefore all regions in the inner container have uniform temperatures.

Fig. 6A to 6C are schematic cross-sectional views of a horizontal freezer in a fifth embodiment of the 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, which are not repeated herein.

As shown in fig. 6A to 6C, a horizontal refrigerator 500, particularly an air-cooled horizontal refrigerator, according to a fifth embodiment of the present invention 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 air outlets are arranged at different positions; 3) the setting positions of the multiple groups of air return openings are different; 4) due to different air circulations caused by the difference of the air outlets and the air return inlets.

A bottom plate 22 of an inner container 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 a first inner container wall 24; the air duct plate is arranged on the second side wall 232, and the air duct plate comprises a first cover plate 31 and a second cover plate 32 which are connected with each other, 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 inner container wall 24 constitutes an evaporator chamber, in which the evaporator 80 is arranged. The evaporator fan unit 50 is disposed above the evaporator 80, or the evaporator fan unit 50 is located between the first cover plate 31 and the evaporator 80, and the evaporator fan unit 50 is adjacent to the top of the horizontal refrigerator 500.

In this embodiment, the plurality 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 plate. Preferably, the first air outlet 511 is disposed near an 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, the plurality of first air outlet openings 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 of the plurality of first air outlet openings is the same. Similarly, the second air outlet 512 includes a plurality of second air outlet openings, the second air outlet openings are arranged along the second cover plate 32 in a longitudinal extending manner, and each of the second air outlet openings has the same width and height, so that the area of each of the second air outlet openings is the same.

Corresponding to the first outlet 511 and the second outlet 512, the first outlet channel 513 is disposed in the evaporator cavity, and the first outlet channel 513 is located between the evaporator 80 and the second cover plate 32. The air circulation 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 first air outlet duct 513 is provided with a fixed block 51 on a side facing the evaporator 80, the fixed block 51 is located above the evaporator 80, the upper side of the evaporator 80 is close to the first cover plate 31, and the evaporator fan unit 50 is fixed on the fixed block 51. Preferably, the evaporator fan set 50 is a centrifugal fan, for example.

With reference to fig. 6A to 6C, the multiple sets of air returns include a first air return 521, a second air return 523, and a third air return 525, 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 close to the fourth liner wall 27, and the third air return 525 is disposed at an edge of the first sidewall 231 of the step portion 23 close to 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 inlet 521, the second return air inlet 523 and the third return air inlet 525, wherein the first return air duct groove 522 is positioned between the fourth liner wall 27 and the box shell 10; second return duct groove 524 is located between bottom plate 22 and the bottom of cabinet 10; the third air return channel 526 is located between the bent partition at the bottom of the cabinet 10 and the step 23, and the shape of the third air return channel 526 is similar to that of the step 23, that is, the third air return channel 526 includes a horizontal air channel 5262 and a vertical air channel 5261, and the vertical air channel 5261 communicates with the second air return channel 524 and the horizontal air channel 5262, respectively. The air flow channel between the first air return channel groove 522 and the fourth inner container wall 27 is a first air return channel, the air flow channel between the second air return channel groove 524 and the bottom plate 22 is a second air return channel, and the air flow channel between the third air return channel groove 526 and the step portion 23 is a third air return channel.

The second side wall 232 is provided with a return air duct connecting hole (not shown) corresponding to the region of the evaporator cavity, 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 entering the first return air duct, the second return air duct and the third return air duct from the first return air inlet 521, the second return air inlet 523 and the third return air inlet 525 enters the evaporator cavity through the return air duct connecting hole.

Further, the first air outlet 511 of the second cover plate 32 is opposite to the first air return 521 of the fourth liner wall 27, wherein a vertical distance between the first air outlet 511 and the bottom plate 22 is equal to a vertical distance between the first air return 521 and the bottom plate 22, that is, the first air outlet 511 and the first air return 521 are arranged at the same height; similarly, the second air outlet 512 of the second cover plate 32 is opposite to the fourth air return opening 521 ' of the fourth liner wall 27, wherein the vertical distance from the second air outlet 512 to the bottom plate 22 is equal to the vertical distance from the fourth air return opening 521 ' to the bottom plate 22, that is, the second air outlet 512 and the fourth air return opening 521 ' are arranged at the same height. The first air outlet channel 521 'is disposed between the fourth inner container wall 27 and the cabinet 10, and the air flow channel between the fourth air outlet channel 521' and the fourth inner container wall 27 is a fourth air outlet channel. The air outlet and the air return opening are arranged on the upper part of the horizontal refrigerator liner in equal height, an air curtain can be formed between the air outlet and the air return opening, and further 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 a glass door body at the top of a refrigerator box body (an assembly of the box shell, the liner and the foaming layer), and the temperature balance of all areas in the liner is ensured.

In this embodiment, since the first air outlet duct is substantially located in the evaporator cavity, in order to avoid interference between the return air and the outlet air, only the upper portion of the first air outlet duct is communicated with the evaporator fan unit 50, and there is no gap between the lower portion of the first air outlet duct or the bottom of the first air outlet duct groove 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 portion of the first air outlet channel is close to the first cover plate 31, and the lower portion of the first air outlet channel is close to the second sidewall 232 of the step portion 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 used as the first air duct and a right space used as the storage space for the evaporator 80, and the left space and the right space communicate only with each other in the region where the evaporator fan unit 50 is provided above the evaporator chamber. The upper part of the evaporator chamber is the area close to the first cover plate 31.

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

The positions of a plurality of groups of air outlets and a plurality of groups of air return inlets are adjusted through air circulation in the horizontal refrigerator 500, wherein the air outlets and the air return inlets are arranged on two opposite side surfaces of the inner container in the same height and are positioned on the upper portion of the inner container, and an air curtain is formed on the upper portion of the horizontal refrigerator in the process that air flows from the air outlets to the air return inlets, so that external heat can be prevented from entering from a glass door body on the top of the horizontal refrigerator, and the temperature uniformity of all areas in the inner container can be maintained beneficially.

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

As shown in fig. 7A to 7C, a horizontal refrigerator 600 according to a sixth embodiment of the present invention, in particular, an air-cooled horizontal refrigerator, 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 evaporator fan set 50 is arranged at different positions; 3) the arrangement positions of the air outlets are different; 4) the setting positions of the multiple groups of air return openings are different; 5) due to different air circulations caused by the difference of the air outlets and the air return inlets.

A bottom plate 22 of an inner container 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 a first inner container wall 24; the air duct plate is arranged on the second side wall 232, and the air duct plate comprises a first cover plate 31 and a second cover plate 32 which are connected with each other, 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 inner container wall 24 constitutes an evaporator chamber, in which the evaporator 80 is arranged. The evaporator fan unit 50 is disposed on the second side wall 232 and is located on a side of the second cover plate 32 away from the first inner container wall 24. In other words, the evaporator 80 is disposed on a first side of the second cover plate 32, and the evaporator fan unit 50 is disposed on a second side of the second cover plate 32, the first side and the second side being opposite to each other, and the first side facing the first inner container wall.

In one embodiment, the air duct plate further includes an extending cover plate located at the second side of the second cover plate 32, wherein the extending cover plate includes a third cover plate 33 and a fourth cover plate 34 connected to each other, the third cover plate 33 is connected to the second cover plate 32 and the fourth cover plate 34 respectively (or the third cover plate 33 is located at the second cover plate 32 and the fourth cover plate 34), wherein the fourth cover plate 34 is parallel to and opposite to the second cover plate 32, and the third cover plate 33 is parallel to and opposite to the second sidewall 232. In this embodiment, the first cover plate 31 to the fourth cover plate 34 may be integrally formed. The space between the extended cover plate and the second sidewall 32 is configured to receive an evaporator fan unit 80.

The multiple rows of first air outlets 611 are disposed on the bottom plate 22 of the inner container 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 the 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 in the transverse direction of the bottom plate 22, the width or area of each of the plurality of first air outlet openings gradually increases.

Corresponding to the plurality of rows of first air outlets 611, the plurality of rows of first air outlet grooves 612 are disposed between the bottom plate 22 and the bottom of the box 10. The air circulation channel between the rows of first air outlet channel slots 612 and the bottom plate 22 is a plurality of rows of first air outlet channels. The first air outlets are arranged on the first air outlet channels, and the first air outlets are communicated with the first air outlets.

In this embodiment, since the evaporator fan unit 50 is disposed on the second sidewall 232, in order to communicate the first air outlet duct with the evaporator fan unit 50, the second air outlet duct slot 613 is further included, and the second air outlet duct slot 613 is disposed between the first sidewall 231 and the bent partition plate at the bottom of the box shell 10; the air flow 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 the first air channels and the evaporator fan set 50; that is, the air sent by the evaporator fan unit 50 firstly enters the second air duct, then enters the first air ducts with multiple rows, and enters the inner container 20 through the first air outlets 611 on the bottom plate 22 with multiple rows.

The multiple rows of first air outlets are arranged on the bottom plate 22 of the inner container 20 to form air outlet at the bottom of the inner container 20, so that the air blowing to 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 is further reduced.

With reference to fig. 7A to 7C, the multiple sets of air-returning openings include a first air-returning opening 621, a second air-returning opening 622, and a third air-returning opening 624, the first air-returning opening 621 is disposed on the first cover plate 31, the second air-returning opening 622 is disposed on the upper edge of the second inner container wall 25, and the third air-returning opening 624 is disposed on the upper edge of the third inner container wall 26.

A first return air duct slot 623 and a second return air duct slot 625 are respectively arranged corresponding to the second return air inlet 622 and the third return air inlet 624, wherein the first return air duct slot 623 is positioned between the second inner container wall 25 and the box shell 10; the second return duct slot 625 is located between the third inner container wall 26 and the cabinet 10. An air circulation passage between the first air return passage groove 623 and the second liner wall 25 is a first air return passage, and an air circulation passage between the second air return passage groove 625 and the third liner wall 26 is a second air return passage.

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

In order to realize the diversion of the air returning from the first air returning channel connecting hole and the second air returning channel connecting hole to the upper part of the evaporator cavity, a diversion clapboard 31 ' is arranged between the first cover plate 31 and the evaporator 80, the space between the diversion clapboard 31 ' and the first cover plate 31 forms a third air returning channel, at least one air returning hole is arranged on the diversion clapboard 31 ' corresponding to the upper part of the evaporator 80, and the air returning from the upper part of the evaporator 80 flows to the evaporator 80 and flows towards the lower part of the evaporator 80 from the upper part of the evaporator 80. The evaporator 80 is located above the first cover plate 31, and the evaporator 80 is located below the second sidewall 232 of the step 23.

In this embodiment, the diversion baffle plate 31 ' is located at the upper part of the evaporator chamber, and the diversion baffle plate 31 ' substantially divides the evaporation chamber into an upper space and a lower space, the upper space serves as a third air return duct, the lower space serves as a storage space of the evaporator 80, and the upper space and the lower space are communicated with each other through the plurality of air return holes in the diversion baffle plate 31 '.

The air circulation in the horizontal refrigerator 600 includes air-out and air-back, the evaporator fan set 50 starts to work, sucks air on one side of the evaporator 80, sends the air out from the other side of the evaporator fan set 50, enters the first air-out channel from the second air channel, and enters the inner container 20 through the plurality of groups of first air outlets 611 respectively; the air in the inner container 20 enters the first air return duct, the second air return duct and the third air return duct from the first air return opening 621, the second air return opening 622 and the third air return opening 624 respectively, enters the lower space in the evaporator cavity through the plurality of air return holes on the flow guide partition plate 31', circulates from the upper part of the evaporator 80 to the lower part of the evaporator 80, and is sucked by the evaporator fan set 50.

The positions of a plurality of groups of air outlets and a plurality of groups of air return ports are adjusted through air circulation in the horizontal refrigerator 600, wherein the air outlets are formed in the bottom plate of the inner container, the air return ports are formed in the inner container wall and the air duct plate close to the top of the horizontal refrigerator, air can be reduced to blow on the glass door body at the top of the horizontal refrigerator 600, and then the risk of condensation of the glass door body is reduced.

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

Claims

1. A horizontal refrigerator 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, 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 a space between the air duct plate and the first inner container wall forms an evaporator chamber;

wherein, evaporimeter and evaporimeter fan group set up respectively on this second lateral wall, and this wind channel board includes first apron and second apron, and this second apron is relative with this first inner bag wall, and this evaporimeter sets up in the first side of this second apron, and this evaporimeter fan group sets up in the second side of this second apron, and this first side and this second side back of the body mutually, and this first side is towards this first inner bag wall.

2. The horizontal freezer of claim 1, wherein the air duct plate includes an extended cover plate positioned on the second side of the second cover plate, and a space between the extended cover plate and the second side wall is configured to receive the evaporator fan unit.

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

4. The horizontal refrigerator according to claim 1, further comprising a plurality of rows of first air outlets disposed on the bottom plate, wherein the plurality of rows of first air outlets are sequentially arranged along a longitudinal direction of the bottom plate, each row of first air outlets includes a plurality of first air outlet openings, the plurality of first air outlet openings are sequentially arranged along a transverse direction of the bottom plate, and a width or an area of each of the plurality of first air outlet openings gradually increases along the transverse direction.

5. The horizontal refrigerator according to claim 4, further comprising a first air outlet duct and a second air outlet duct, wherein the first air outlet duct is disposed between the bottom plate and the bottom of the cabinet housing corresponding to the plurality of rows of the first air outlets; the second air outlet duct groove is arranged between the first side wall and the bent partition plate of the box shell.

6. The horizontal refrigerator according to claim 1, wherein 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 transversely extending side walls, the first inner container wall is a longitudinally extending side wall, and the first air return opening is arranged on the first cover plate; the second air return opening is arranged at the upper edge of the second inner container wall, and the third air return opening is arranged at the upper edge of the third inner container wall.

7. The horizontal refrigerator according to claim 6, wherein a first return air duct groove is provided corresponding to the first return air opening, the first return air duct groove being located between the second inner container wall and the cabinet housing; and a second return air channel groove is arranged corresponding to the third return air inlet and is positioned between the third inner container wall and the box shell.

8. The horizontal refrigerator according to claim 7, further comprising a baffle plate disposed in the evaporator chamber, the baffle plate being disposed between the first cover plate and the evaporator.

9. The horizontal refrigerator according to claim 8, wherein the baffle plate is provided with at least one air return hole corresponding to the evaporator, and the at least one air return hole allows air between the first cover plate and the baffle plate to flow toward the evaporator.

10. The horizontal refrigerator according to claim 1, wherein the bottom plate is bent toward the container of the inner container to form the step portion.