Vertical refrigerator

Abstract

The utility model belongs to the technical field of refrigeration equipment, and relates to a vertical refrigerator. The vertical refrigerator comprises a refrigerator body, a door body and an air duct assembly. An accommodating cavity is defined at the lower part of the cabinet body and comprises a first cavity far away from the door body and a second cavity close to the door body, and the top surface of the first cavity is higher than that of the second cavity; a condenser and a compressor are arranged in the first cavity, and a water pan is arranged in the second cavity; the cabinet body inner container is provided with a first container bottom wall and a second container bottom wall which are located over the first cavity and the second cavity respectively. The lower portion of the air duct assembly is connected with the first container bottom wall, and the upper portion of the air duct assembly is connected with the inner container top wall to form a rear air duct with the inner container rear wall. The rear air duct is provided with an air inlet and a rear air outlet, and an evaporator and a centrifugal fan are sequentially arranged in the rear air duct in the direction from the air inlet to the rear air outlet. According to the utility model, the lower space of the refrigerator body is optimally utilized, the space proportion of the fan is reduced, and the storage space in the vertical refrigerator is effectively increased.

Description

Technical Field

[0001] The utility model belongs to the technical field of refrigeration equipment, and particularly relates to a vertical freezer. Background Art

[0002] Vertical freezers are common electrical appliances in people's daily lives, mainly placed in business places such as shopping malls, supermarkets, and hotels. Vertical freezers usually have glass doors, and products such as beverages and foods are placed inside the cabinets. Consumers can directly observe the storage situation inside the freezers and can open the doors to take items. Based on the commercial nature of vertical freezers, people generally hope that vertical freezers have a large storage space and good temperature uniformity to ensure the refrigeration effect of the products inside the cabinets.

[0003] In currently common vertical freezers, many install air inlet plates on the top wall of the inner liner of the cabinet body. A top air duct is formed between the air inlet plate and the top wall of the inner liner. An axial flow fan and an evaporator are both arranged in the top air duct, and an air inlet is arranged at the front end of the air inlet plate; an air outlet plate is installed on the rear wall of the inner liner of the cabinet body. A rear air duct is formed between the air outlet plate and the rear wall of the inner liner, and a plurality of air outlets are distributed on the air outlet plate; many vertical freezers define a refrigeration system accommodation cavity with a relatively flat and square shape at the lower part of the cabinet body, which is used to install a compressor, a condenser, a water receiving tray, a cooling fan, etc. The air-cooling circulation mode of this common vertical freezer is that the high-temperature air inside the cabinet enters the top air duct from the top air inlet under the action of the axial flow fan, is cooled by the evaporator and then enters the rear air duct, and then flows into the refrigeration cavity through the air outlets on the air outlet plate. However, this vertical freezer has the following deficiencies:

[0004] 1) The volume of the axial flow fan is often large, so the space occupancy ratio of the top air duct is also relatively large, resulting in a relatively reduced storage space inside the cabinet;

[0005] 2) There are still quite a lot of unused spaces in the refrigeration system accommodation cavity, resulting in the underutilization of the lower space of the cabinet body;

[0006] 3) The temperature drops relatively fast and the temperature is relatively low near the air outlet in the refrigeration cavity, while the temperature drops relatively slowly and the temperature is relatively high near the door body side. Therefore, the temperature uniformity inside the cabinet is relatively poor, which will lead to poor consistency in the refrigeration effect of the products inside the cabinet. Content of the Utility Model

[0007] In view of the deficiencies existing in the related art, the utility model provides a vertical freezer to solve at least one of the technical problems mentioned in the background art.

[0008] The utility model provides a freezer, including a cabinet body and a door body rotatably connected to the front side of the cabinet body,

[0009] The lower part of the cabinet defines a receiving cavity, which includes a first cavity away from the door body and a second cavity close to the door body, and the top surface of the first cavity is higher than the top surface of the second cavity; a condenser and a compressor are installed in the first cavity, and a water receiving pan is installed in the second cavity;

[0010] The cabinet has an inner tank with a front opening, the inner tank comprises a tank rear wall located at the rear, a tank top wall located at the top, a first tank bottom wall and a second tank bottom wall located at the bottom and staggered up and down, the first tank bottom wall and the second tank bottom wall are respectively located directly above the first cavity and the second cavity;

[0011] The upright freezer also includes an air duct assembly; the lower part of the air duct assembly is connected to the bottom wall of the first gallbladder, and the upper part of the air duct assembly is connected to the top wall of the gallbladder, a rear air duct is formed between the air duct assembly and the rear wall of the gallbladder, and the inner gallbladder space on the front side of the air duct assembly is a refrigeration cavity; the rear air duct has an air inlet and a rear air outlet connected to the refrigeration cavity, and an evaporator and a centrifugal fan are arranged in sequence in the rear air duct along the direction from the air inlet to the rear air outlet.

[0012] In some of the embodiments, the air duct assembly includes a rear air outlet plate and an air inlet plate connected up and down, the lower end of the air inlet plate is connected to the first gallbladder bottom wall, the upper end of the rear air outlet plate is connected to the gallbladder top wall, the air inlet plate is provided with an air inlet, and the rear air outlet plate is provided with a plurality of rear air outlets arranged left and right; an air duct baffle is connected between the rear air outlet plate and the gallbladder rear wall to separate the rear air duct into a rear first air duct and a rear second air duct along the direction from the air inlet to the rear air outlet; an air duct baffle is provided on the air duct baffle to connect the rear first air duct and the rear second air duct; the evaporator is clamped in the rear first air duct; the centrifugal fan is arranged in the rear second air duct and its air inlet end is facing the air duct.

[0013] In some of the embodiments, the air inlet plate includes a front air inlet plate and an upper air inlet plate; the front air inlet plate is vertically arranged, and its lower end is connected to the middle part of the bottom wall of the first tank; the upper air inlet plate is horizontally arranged, one end of which is connected to the upper end of the front air inlet plate, and the other end extends toward the rear wall of the tank and is connected to the lower end of the rear air outlet plate; the air inlet includes a front air inlet arranged on the front air inlet plate and an upper air inlet arranged on the upper air inlet plate.

[0014] In some of the embodiments, the inner tank further comprises a tank left wall located on the left side and a tank right wall located on the right side; an air inlet grille is provided at the front air inlet, and the air inlet grille comprises a plurality of vertically extending left air inlet grid plates and a plurality of vertically extending right air inlet grid plates; a plurality of left air inlet grid plates are arranged at intervals from the middle of the front air inlet to the side close to the left wall of the tank, and the left air inlet grid plates are all inclined toward the left wall of the tank; a plurality of right air inlet grid plates are arranged at intervals from the middle of the front air inlet to the side close to the right wall of the tank, and the right air inlet grid plates are all inclined toward the right wall of the tank; the upper air inlet comprises a plurality of upper air inlet holes arranged at intervals from the front air inlet, and the upper air inlet holes are in the shape of longitudinal holes;

[0015] A rear air outlet grille is provided at each rear air outlet. The rear air outlet grille includes a plurality of left air outlet grille plates extending vertically and a plurality of right air outlet grille plates extending vertically. The plurality of left air outlet grille plates are horizontally spaced from the middle of the rear air outlet towards the side close to the left wall of the tank, and the left air outlet grille plates are all inclined towards the left wall of the tank. The plurality of right air outlet grille plates are horizontally spaced from the middle of the rear air outlet towards the side close to the right wall of the tank, and the right air outlet grille plates are all inclined towards the right wall of the tank.

[0016] In some embodiments, the air duct assembly further includes a top air outlet plate connected to the top wall of the tank. The rear end of the top air outlet plate is connected to the upper end of the rear air outlet plate. A top air duct communicating with the rear second air duct is formed between the top air outlet plate and the top wall of the tank. A front air outlet is provided at the front end of the top air outlet plate, so that the top air duct is also communicated with the refrigerating chamber.

[0017] In some embodiments, a front air outlet grille is provided at the front air outlet. The front air outlet grille includes a front air outlet front guide plate and a front air outlet rear guide plate arranged opposite to each other in the front and rear. A plurality of front air outlet grille plates arranged horizontally at intervals are connected between the front air outlet front guide plate and the front air outlet rear guide plate. The upper end of the front air outlet front guide plate extends obliquely towards the top air duct, and its lower end extends obliquely downwards towards the side away from the door body. The upper end of the front air outlet rear guide plate is flush with the bottom surface of the top air duct, and its lower end extends obliquely downwards towards the side away from the door body.

[0018] In some embodiments, the front air outlet grille further includes at least one front air outlet partition plate. The front air outlet partition plate is located between the front air outlet front guide plate and the front air outlet rear guide plate and is connected to all the front air outlet grille plates. The front air outlet partition plate includes a front air outlet air distribution plate and a front air outlet middle guide plate. The front air outlet air distribution plate is located in the middle in the height direction of the top air duct and its rear end extends towards the side away from the door body. The upper end of the front air outlet middle guide plate is connected to the front end of the front air outlet air distribution plate, and its lower end extends obliquely downwards towards the side away from the door body.

[0019] In some embodiments, a wind rectifying plate that fits the rear wall of the tank protrudes from the side of the air duct baffle towards the rear wall of the tank. The wind rectifying plate includes two vertical wind rectifying ribs and two inclined wind rectifying ribs arranged oppositely on the left and right sides of the air inlet. The lower ends of the two vertical wind rectifying ribs are respectively connected smoothly to the left and right sides of the evaporator. The lower ends of the two inclined wind rectifying ribs are respectively connected to the upper ends of the two vertical wind rectifying ribs. The upper ends of the two inclined wind rectifying ribs both extend obliquely upwards towards the upper part of the air inlet and are connected together through an arc-shaped wind rectifying rib. The air inlet is located below the arc-shaped wind rectifying rib.

[0020] In some of the embodiments, a wind guide plate that fits the rear air outlet plate is convexly provided on one side of the air duct baffle plate toward the rear air outlet plate; the wind guide plate includes an arc-shaped wind guide rib, a first wind guide rib, and a second wind guide rib; the arc-shaped wind guide rib is semi-enclosed and arranged around the middle and lower part of the air inlet; the lower ends of the first wind guide rib and the second wind guide rib are respectively connected to the upper ends of the left and right sides of the arc-shaped wind guide rib; the upper ends of the first wind guide rib and the second wind guide rib respectively extend obliquely upward away from the air inlet until they are respectively connected to the left and right sides of the rear second air duct;

[0021] An air distribution platform that fits with the rear air outlet plate is convexly provided on the rear wall of the gallbladder located in the rear second air duct. The air distribution platform is located directly above the centrifugal fan and extends vertically to the top wall of the gallbladder to divide the rear second air duct into two left and right rear branch air ducts; multiple rear air outlets are arranged corresponding to the left and right rear branch air ducts; an air guide platform that fits with the top air outlet plate is convexly provided on the top wall of the gallbladder, the rear end of the air guide platform is smoothly connected to the upper end of the air distribution platform, and the left and right sides of the air guide platform are inclined toward the middle of the front air outlet.

[0022] In some embodiments, the arc-shaped air guiding ribs include a first arc-shaped rib and a second arc-shaped rib located on the left and right sides of the air inlet and connected in sequence along the rotation direction of the centrifugal fan, the horizontal distance between the upper end of the second arc-shaped rib and the center of the air inlet is greater than the horizontal distance between the upper end of the first arc-shaped rib and the center of the air inlet, and the radius of the second arc-shaped rib is greater than the radius of the first arc-shaped rib;

[0023] A guide plate that fits with the duct baffle is protruded on one side of the rear air outlet plate toward the duct baffle, and the guide plate is located above the air outlet; the guide plate includes a first guide rib, a second guide rib and two vertical guide ribs that are arranged opposite to each other, and the upper ends of the two vertical guide ribs are respectively connected to the left and right sides of the wind distribution platform, the upper end of the first guide rib is connected to the lower end of one of the vertical guide ribs, and the lower end of the first guide rib extends below the other vertical guide rib, so that the first guide rib is arranged around the upper side of the air outlet; a second guide rib is connected between the lower end of the first guide rib and the vertical guide rib above it, and the second guide rib and the second arc rib are located on the same side of the air outlet.

[0024] Based on the above technical solution, the upright freezer in the embodiment of the utility model realizes the optimal utilization of the lower space of the cabinet, reduces the space occupied by the fan, and increases the storage space in the cabinet; in addition, it can also improve the temperature balance in the cabinet, increase the cooling rate of the products on the side of the cabinet close to the door body, and facilitate consumers to directly take products with the expected refrigeration effect from the front row, thereby improving the consumer experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0026] Figure 1 This is the overall schematic diagram of the vertical freezer of the present utility model;

[0027] Figure 2 This is the front view of the vertical freezer of the present utility model (the door body is not shown);

[0028] Figure 3 For Figure 2 The A-A cross-sectional view of (the shelves and the equipment in the accommodation cavity are not shown);

[0029] Figure 4 This is the air-cooling circulation mode diagram of the vertical freezer of the present utility model;

[0030] Figure 5 For Figure 3 The enlarged view at position B in ;

[0031] Figure 6 This is the bottom view of the vertical freezer of the present utility model (the bottom plate of the cabinet body is not shown);

[0032] Figure 7 This is the first structural schematic diagram of the inner container in the present utility model;

[0033] Figure 8 This is the second structural schematic diagram of the inner container and the air duct baffle in the present utility model;

[0034] Figure 9 This is the front view of the air duct assembly in the present utility model;

[0035] Figure 10 This is the first structural schematic diagram of the air duct assembly in the present utility model;

[0036] Figure 11 This is the second structural schematic diagram of the air duct assembly in the present utility model;

[0037] Figure 12 This is the structural schematic diagram of the air inlet plate in the present utility model;

[0038] Figure 13 This is the first structural schematic diagram of the rear air outlet plate in the present utility model;

[0039] Figure 14 This is the second structural schematic diagram of the rear air outlet plate in the present utility model;

[0040] Figure 15 This is the first structural schematic diagram of the air duct baffle in the present utility model;

[0041] Figure 16 This is the second structural schematic diagram of the air duct baffle in the present utility model;

[0042] Figure 17This is a schematic structural diagram of the top air outlet plate in the present utility model.

[0043] In the figure: 1, cabinet body; 11, inner liner; 111, rear wall of the liner; 1111, air distribution platform; 112, top wall of the liner; 1121, air guiding platform; 113, left wall of the liner; 114, right wall of the liner; 115, first bottom wall of the liner; 116, second bottom wall of the liner; 117, front wall of the liner; 118, drain hole; 12, bottom plate; 101, accommodating cavity; 1011, first cavity; 1012, second cavity; 102, refrigerating cavity; 103, rear air duct; 1031, first rear air duct; 1032, second rear air duct; 1033, rear branch air duct; 104, top air duct; 2, door body; 3, condenser; 4, compressor; 5, water receiving tray; 6, air duct assembly; 61, air inlet plate; 610, air inlet; 611, front air inlet plate; 6111, front air inlet; 6112, air inlet grille; 6113, left air inlet grille plate; 6114, right air inlet grille plate; 6115, front air inlet channel; 612, upper air inlet plate; 6121, upper air inlet; 6122, upper air inlet hole; 62, rear air outlet plate; 620, rear air outlet; 621, rear air outlet grille; 622, left air outlet grille plate; 623, right air outlet grille plate; 6211, rear air outlet channel; 624, deflector; 6241, vertical deflector rib; 6242, first deflector rib; 6243, second deflector rib; 625, installation cavity; 63, air duct baffle; 630, air guiding inlet; 631, air rectifying plate; 6311, vertical air rectifying rib; 6312, inclined air rectifying rib; 6313, arc air rectifying rib; 632, air guiding plate; 6321, arc air guiding rib; 6322, first air guiding rib; 6323, second air guiding rib; 6324, first arc rib; 6325, second arc rib; 633, air guiding part; 64, top air outlet plate; 640, front air outlet; 641, front air outlet grille; 6411, front air outlet front guiding plate; 6412, front air outlet rear guiding plate; 6413, front air outlet grille plate; 6414, front air outlet partition plate; 6415, front air outlet air distribution plate; 6416, front air outlet middle guiding plate; 6417, front air outlet channel; 7, evaporator; 8, centrifugal fan; 9, shelf. Detailed implementation manners

[0044] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0045] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "lateral", "longitudinal", "vertical", "upper", "lower", "top", "bottom", "inner", "outer", "left", "right", "front", "rear", "vertical", "horizontal", etc. is based on the orientation or positional relationship shown in the drawings, that is, the orientation description is made when the user faces the vertical freezer, and it is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or component referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0046] The terms "first", "second", etc. are only used for descriptive purposes, and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first", "second", etc. may explicitly or implicitly include one or more of such features.

[0047] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", "coupling" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a direct connection, or an indirect connection through an intermediate medium, and it may be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0048] Referring Figures 1 - 17 As shown, the present utility model provides a vertical freezer, which includes a cabinet body 1, a door body 2 and an air duct assembly 6.

[0049] A receiving cavity 101 is defined at the lower part of the cabinet body 1. The receiving cavity 101 includes a first cavity 1011 away from the door body 2 and a second cavity 1012 close to the door body 2. The top surface of the first cavity 1011 is higher than the top surface of the second cavity 1012, and the bottom surface of the first cavity 1011 is flush with the bottom surface of the second cavity 1012, that is, the top surface of the bottom plate 12 of the cabinet body 1; thus, the height space of the first cavity 1011 is larger than the height space of the second cavity 1012. A condenser 3, a compressor 4 and a heat dissipation fan, etc. with relatively high height are installed in the first cavity 1011, and a water receiving tray 5, etc. with relatively low height are installed in the second cavity 1012.

[0050] The cabinet body 1 has an inner liner 11 with a front opening. The inner liner 11 includes a rear wall 111 of the liner at the rear, a top wall 112 of the liner at the top, a first bottom wall 115 and a second bottom wall 116 of the liner at the bottom which are arranged in a vertically staggered manner. The first bottom wall 115 is directly above the first cavity 1011, the second bottom wall 116 is directly above the second cavity 1012, and a front wall 117 of the liner is connected between the first bottom wall 115 and the second bottom wall 116.

[0051] The lower part of the air duct assembly 6 is connected to the first tank bottom wall 115, and the upper part of the air duct assembly 6 is connected to the tank top wall 112. A rear air duct 103 is formed between the air duct assembly 6 and the tank rear wall 111. Drain holes 118 are formed in the first tank bottom wall 115 located in the rear air duct 103, and drain holes 118 are also formed in the second tank bottom wall 116. All the drain holes 118 are communicated with the water receiving tray 5. The inner tank 11 space in front of the air duct assembly 6 is a refrigerating chamber 102. The door body 2 is rotatably connected to the front side of the cabinet body 1 for closing or opening the refrigerating chamber 102. The rear air duct 103 has an air inlet 610 and a rear air outlet 620 communicated with the refrigerating chamber 102. An evaporator 7 and a centrifugal fan 8 are sequentially arranged in the rear air duct 103 along the direction from the air inlet 610 to the rear air outlet 620. Further, the evaporator 7 is in a flat shape adapted to the shape of the rear air duct 103. The centrifugal fan 8 is in an overall flat spiral structure.

[0052] In the above-mentioned exemplary embodiment, through the specific design of the lower accommodation cavity 101 of the cabinet body 1, the optimized utilization of the lower space of the cabinet body 1 is realized, the problem of insufficient utilization of the lower space of the cabinet body 1 in the prior art is solved, and further the stepped design of the bottom wall of the inner tank 11 is realized, so that the space in front of the tank front wall 117 becomes a part of the refrigerating chamber 102, increasing the storage space in the cabinet. By arranging the rear-mounted centrifugal fan 8, the space occupation ratio of the fan is reduced, the problem that the space occupation ratio of the axial flow fan in the prior art is relatively large is solved, and the storage space in the cabinet is also increased. Thus, there is a large storage space in the vertical freezer.

[0053] Reference Figure 3 、 Figures 7 - 16As shown, in some embodiments, the air duct assembly 6 includes a rear air outlet plate 62 and an air inlet plate 61 connected up and down. The lower end of the air inlet plate 61 is connected to the bottom wall 115 of the first liner, and the upper end of the rear air outlet plate 62 is connected to the top wall 112 of the liner, so that the rear air outlet plate 62 and the air inlet plate 61 cover the entire rear wall 111 of the liner. An air duct baffle 63 is connected between the rear air outlet plate 62 and the rear wall 111 of the liner to divide the rear air duct 103 into a first rear air duct 1031 and a second rear air duct 1032 along the direction from the air inlet 610 to the rear air outlet 620; specifically, the air duct baffle 63 is clamped between the middle section of the rear air outlet plate 62 and the middle section of the rear wall 111 of the liner. A first rear air duct 1031 is formed between the lower section of the rear air outlet plate 62, the air inlet plate 61, the rear wall 111 of the liner and the air duct baffle 63, and a second rear air duct 1032 is formed between the middle and upper sections of the rear air outlet plate 62, the air duct baffle 63 and the rear wall 111 of the liner. An air guiding opening 630 that penetrates through from front to back and is centered left and right is formed on the air duct baffle 63. Through the arrangement of the air guiding opening 630, the second rear air duct 1032 is communicated with the first rear air duct 1031. An air inlet 610 is formed on the air inlet plate 61 to communicate the first rear air duct 1031 with the refrigerating chamber 102; a plurality of rear air outlets 620 arranged left and right are formed on the rear air outlet plate 62 to communicate the second rear air duct 1032 with the refrigerating chamber 102.

[0054] The evaporator 7 is clamped in the first rear air duct 1031 between the rear air outlet plate 62 and the rear wall 111 of the liner. The centrifugal fan 8 is arranged in the second rear air duct 1032. The air inlet end of the centrifugal fan 8 faces the air guiding opening 630, that is, the centrifugal fan 8 is clamped between the air duct baffle 63 and the rear air outlet plate 62 and is in the centered position in the left-right direction. The axial direction of the centrifugal fan 8 is the front-back direction; it can be understood that the air inlet end of the centrifugal fan 8 is in its axial direction and the air outlet end is in its radial direction. Therefore, the air inlet direction of the centrifugal fan 8 is perpendicular to the rear air outlet plate 62 and the air outlet direction is parallel to the rear air outlet plate 62. Through the arrangement of the centrifugal fan 8, the air flow direction is changed and air is discharged all around in a 360-degree direction.

[0055] The air-cooling circulation mode of this embodiment is that the high-temperature air in the refrigerating chamber 102 is sucked into the first rear air duct 1031 through the air inlet 610 on the air inlet plate 61 under the action of the centrifugal fan 8 (i.e., the air enters from the bottom of the cabinet), first flows through the evaporator 7 for heat exchange and cooling, and the cooled air flow enters the second rear air duct 1032 through the air guiding opening 630 and the centrifugal fan 8 (i.e., the air is discharged from the rear of the cabinet), and then enters the refrigerating chamber 102 through the plurality of rear air outlets 620 on the rear air outlet plate 62.

[0056] In the above-described exemplary embodiments, the structure of the air duct assembly 6 is refined to form an air-cooling circulation mode with bottom air intake and rear air outlet inside the cabinet. In the prior art, the common air-cooling circulation mode with top air intake and rear air outlet inside the cabinet has a relatively high temperature at the top air inlet 610 because the heat inside the cabinet naturally rises and the cold air naturally sinks, resulting in poor temperature uniformity inside the cabinet. However, the air-cooling circulation mode with bottom air intake and rear air outlet inside the cabinet in this embodiment is more conducive to the natural sinking and diffusion of cold air, which can improve the temperature uniformity inside the cabinet.

[0057] Refer to Figure 3 , Figure 9 , Figure 10 , Figure 15 As shown, in some embodiments, the lower part of the air duct baffle 63 is provided with an air guiding portion 633 inclined towards the rear wall 111 of the tank, so that the thickness of the rear first air duct 1031 at the air guiding port 630 is smaller than the thickness of the rear first air duct 1031 at the evaporator 7. An installation cavity 625 slightly convex towards the refrigerating chamber 102 is provided on the rear air outlet plate 62 corresponding to the centrifugal fan 8, and the centrifugal fan 8 is clamped between the air duct baffle 63 and the installation cavity 625. The air flow cooled by the evaporator 7 is accelerated towards the air guiding port 630 under the guidance of the air guiding portion 633. In this exemplary embodiment, through the settings of the air guiding portion 633 on the air duct baffle 63 and the installation cavity 625 on the rear air outlet plate 62, the space occupation ratio of the fan is further reduced, the overall structural design of the air duct assembly 6 is made more compact, and the storage space inside the cabinet is increased.

[0058] Refer to Figures 10 - 12 As shown, in some embodiments, the air inlet plate 61 includes a front air inlet plate 611 and an upper air inlet plate 612 that are connected to each other. The front air inlet plate 611 is vertically arranged, and its lower end is connected to the middle of the first tank bottom wall 115. The upper air inlet plate 612 is horizontally arranged, one end of which is connected to the upper end of the front air inlet plate 611, and the other end extends towards the rear wall 111 of the tank and is connected to the lower end of the rear air outlet plate 62. The air inlet 610 includes a front air inlet 6111 opened on the front air inlet plate 611 and an upper air inlet 6121 opened on the upper air inlet plate 612. In this exemplary embodiment, through the settings of the front air inlet 6111 and the upper air inlet 6121 on the air inlet plate 61, simultaneous air intake in two directions is achieved when the air intake is from the bottom inside the cabinet, which is beneficial to improving the air-cooling circulation efficiency of the vertical freezer.

[0059] Refer to Figure 2 , Figures 6 - 11As shown, in some embodiments, the inner container 11 further includes a left container wall 113 on the left side and a right container wall 114 on the right side. An air inlet grille 6112 is provided at the front air inlet 6111. The air inlet grille 6112 includes a plurality of vertically extending left air inlet grille plates 6113 and a plurality of vertically extending right air inlet grille plates 6114; the plurality of left air inlet grille plates 6113 are horizontally spaced from the middle of the front air inlet 6111 towards the side close to the left container wall 113, and all the left air inlet grille plates 6113 are inclined towards the left container wall 113; the plurality of right air inlet grille plates 6114 are horizontally spaced from the middle of the front air inlet 6111 towards the side close to the right container wall 114, and all the right air inlet grille plates 6114 are inclined towards the right container wall 114; an air inlet channel 6115 is formed between two adjacent left air inlet grille plates 6113 and between two adjacent right air inlet grille plates 6114; through the inclined arrangement of the left air inlet grille plates 6113 and the right air inlet grille plates 6114, the high-temperature air in the entire refrigerating chamber 102 is quickly collected through the plurality of air inlet channels 6115 under the action of the centrifugal fan 8 and is sucked into the first rear air duct 1031. The upper air inlet 6121 includes a plurality of upper air inlet holes 6122 that are horizontally spaced. The shape of the upper air inlet holes 6122 is a longitudinally elongated hole, and the longitudinally elongated hole has advantages such as small air inlet resistance and good aesthetics.

[0060] Reference Figure 2 、 Figures 9 - 14 As shown, in some embodiments, a rear air outlet grille 621 is provided at each rear air outlet 620. The rear air outlet grille 621 includes a plurality of vertically extending left air outlet grille plates 622 and a plurality of vertically extending right air outlet grille plates 623; the plurality of left air outlet grille plates 622 are horizontally spaced from the middle of the rear air outlet 620 towards the side close to the left container wall 113, and all the left air outlet grille plates 622 are inclined towards the left container wall 113; the plurality of right air outlet grille plates 623 are horizontally spaced from the middle of the rear air outlet 620 towards the side close to the right container wall 114, and all the right air outlet grille plates 623 are inclined towards the right container wall 114; an air outlet channel 6211 is formed between two adjacent left air outlet grille plates and between two adjacent right air outlet grille plates 623; through the inclined arrangement of the left air outlet grille plates 622 and the right air outlet grille plates 623, the cold air flowing out of the rear air outlet 620 is quickly diffused into the entire refrigerating chamber 102 through the plurality of air outlet channels 6211.

[0061] Those skilled in the art can understand that the rear air outlet plate 62 can be directly manufactured by an integral molding method, or can be manufactured in a segmented manner up and down and then connected into one body according to actual situations. The rear air outlet grille 621 can be integrally formed with the rear air outlet plate 62 directly, or can be formed by opening rear air outlet holes on the rear air outlet plate 62 and then assembling the rear air outlet grille 621 at the rear air outlet holes. Those skilled in the art can handle it flexibly according to actual needs, and the present invention is not limited thereto.

[0062] ReferenceFigure 3 , Figures 7 - 17 As shown in Figures 7 - 17 , in some embodiments, the air duct assembly 6 further includes an ejection air outlet plate 64 covering and connected to the top wall 112 of the cabinet. The rear end of the ejection air outlet plate 64 is connected to the upper end of the rear air outlet plate 62. A top air duct 104 is formed between the ejection air outlet plate 64 and the top wall 112 of the cabinet, and the top air duct 104 communicates with the rear second air duct 1032. The front end of the ejection air outlet plate 64 is provided with a front air outlet 640, so that the top air duct 104 also communicates with the refrigerating chamber 102.

[0063] The air-cooling circulation mode of this embodiment is that the high-temperature air in the refrigerating chamber 102 is sucked into the rear first air duct 1031 through the air inlet 610 on the air inlet plate 61 under the action of the centrifugal fan 8 (i.e., the air inlet at the bottom of the cabinet), first flows through the evaporator 7 for heat exchange and cooling, and the cooled air flow enters the rear second air duct 1032 and the top air duct 104 through the air guiding port 630 and the centrifugal fan 8 (i.e., the air outlet at the rear and the front end of the top of the cabinet), and then enters the refrigerating chamber 102 through the plurality of rear air outlets 620 on the rear air outlet plate 62 and the front air outlet 640 on the ejection air outlet plate 64.

[0064] In the above-mentioned exemplary embodiment, the structure of the air duct assembly 6 is further refined to form an air-cooling circulation mode of air inlet at the bottom of the cabinet, air outlet at the rear and the front end of the top, thereby realizing the simultaneous air outlet of the plurality of rear air outlets 620 and the front air outlet 640, further improving the temperature uniformity in the cabinet. At the same time, through the setting of the front air outlet 640, an air curtain effect can be formed on the front side of the refrigerating chamber 102, improving the cooling speed of the products near the door body 2, so that the products in the front row of the cabinet are preferentially cooled. When consumers take products in the cabinet, they can directly take products with the expected refrigeration effect from the front row, which better adapts to the actual use scenario and significantly improves the consumption experience.

[0065] Refer to Figure 3 , Figure 5 , Figure 17As shown, in some embodiments, a front air outlet grille 641 is provided at the front air outlet 640; the front air outlet grille 641 includes a front air outlet front guide plate 6411 and a front air outlet rear guide plate 6412 that are oppositely arranged front and rear. A plurality of front air outlet grille plates 6413 are connected between the front air outlet front guide plate 6411 and the front air outlet rear guide plate 6412 and are arranged at lateral intervals. Front air outlet channels 6417 are formed between every two adjacent front air outlet grille plates 6413. The upper end of the front air outlet front guide plate 6411 extends obliquely towards the top air duct 104, and its lower end extends obliquely downwards away from the door body 2; the upper end of the front air outlet rear guide plate 6412 is flush with the bottom surface of the top air duct 104, and its lower end extends obliquely downwards away from the door body 2; thus guiding the cold air in the top air duct 104 to smoothly flow into the refrigerating chamber 102 through the plurality of front air outlet channels 6417, forming an air curtain effect, improving the cooling speed of the products near the door body 2, and avoiding the cold air directly blowing on the door body 2, reducing the condensation on the door body 2.

[0066] Reference Figure 5 、 Figure 10 、 Figure 17 As shown, in some embodiments, the front air outlet grille 641 further includes at least one front air outlet partition plate 6414. The front air outlet partition plate 6414 is located between the front air outlet front guide plate 6411 and the front air outlet rear guide plate 6412 and is connected to all the front air outlet grille plates 6413. The front air outlet partition plate 6414 includes a front air outlet air distribution plate 6415 and a front air outlet middle guide plate 6416 that are connected to each other; the front air outlet air distribution plate 6415 is located in the middle in the height direction of the top air duct 104 and its rear end extends away from the door body 2; the upper end of the front air outlet middle guide plate 6416 is connected to the front end of the front air outlet air distribution plate 6415, and its lower end extends obliquely downwards away from the door body 2. In this exemplary embodiment, through the arrangement of the front air outlet partition plate 6414, a multi-layer air curtain effect is formed to ensure that the products in the front row in the cabinet achieve the expected refrigeration effect.

[0067] Reference Figure 3 、 Figure 11 、 Figure 15As shown, in some embodiments, an air rectifying plate 631 that fits against the gallbladder rear wall 111 protrudes from one side of the air duct baffle 63 facing the gallbladder rear wall 111. The air rectifying plate 631 includes two vertical air rectifying ribs 6311 and two diagonal air rectifying ribs 6312 that are oppositely arranged on the left and right sides of the air inlet 630. The lower ends of the two vertical air rectifying ribs 6311 are respectively connected smoothly to the left and right sides of the evaporator 7. The lower ends of the two diagonal air rectifying ribs 6312 are respectively connected to the upper ends of the two vertical air rectifying ribs 6311. The upper ends of the two diagonal air rectifying ribs 6312 both extend obliquely upward toward the upper part of the air inlet 630 and are connected together by an arc-shaped air rectifying rib 6313. The air inlet 630 is located below the arc-shaped air rectifying rib 6313. In this exemplary embodiment, through the design of the air rectifying plate 631, the upper boundary of the rear first air duct 1031 is defined, and the air flow cooled by the evaporator 7 is guided to quickly flow toward the air inlet 630, avoiding waste of cold energy.

[0068] Reference Figure 8 、 Figure 14 、 Figure 16 As shown, in some embodiments, a wind guiding plate 632 that fits against the rear air outlet plate 62 protrudes from one side of the air duct baffle 63 facing the rear air outlet plate 62. The wind guiding plate 632 includes an arc-shaped wind guiding rib 6321, a first wind guiding rib 6322, and a second wind guiding rib 6323. The arc-shaped wind guiding rib 6321 is semi-encircled around the middle and lower part of the air inlet 630. The lower ends of the first wind guiding rib 6322 and the second wind guiding rib 6323 are respectively connected to the upper ends on the left and right sides of the arc-shaped wind guiding rib 6321. The upper ends of the first wind guiding rib 6322 and the second wind guiding rib 6323 respectively extend obliquely upward away from the upper part of the air inlet 630 until they are respectively connected smoothly to the left and right sides of the rear second air duct 1032.

[0069] A wind dividing platform 1111 that fits against the rear air outlet plate 62 protrudes from the gallbladder rear wall 111 located in the rear second air duct 1032; the wind dividing platform 1111 is located directly above the centrifugal fan 8 and vertically extends to the gallbladder top wall 112 to divide the rear second air duct 1032 into two left and right rear branch air ducts 1033. A plurality of rear air outlets 620 are arranged corresponding to the two left and right rear branch air ducts 1033. A wind guiding platform 1121 that fits against the top air outlet plate 64 protrudes from the gallbladder top wall 112. The rear end of the wind guiding platform 1121 is connected smoothly to the upper end of the wind dividing platform 1111. The left and right sides of the wind guiding platform 1121 both incline toward the middle of the front air outlet 640 and converge behind the front air outlet 640.

[0070] In the above-described exemplary embodiments, through the design of the air deflector 632, the lower boundary of the rear second air duct 1032 is defined, and the cold air flowing out of the centrifugal fan 8 is guided to quickly diffuse upward; through the arrangement of the air distribution platform 1111, the cold air is guided to quickly flow to a plurality of rear air outlets 620 arranged on the left and right; through the arrangement of the air guiding platform 1121, the cold air is guided to smoothly flow to the front air outlet 640; thereby avoiding waste of cold air and being beneficial to improving the air-cooling circulation efficiency of the vertical freezer.

[0071] Referring to Figure 2 As shown, in some embodiments, a plurality of shelves 9 are installed in the refrigerating chamber 102 of the cabinet body 1 to divide the refrigerating chamber 102 into a plurality of refrigerating compartments for storing products from top to bottom, and the products are placed on the shelves 9; it should be noted that the front space of the front wall 117 of the inner liner of the cabinet body 1 also becomes one of the refrigerating compartments. Usually, no rear air outlets 620 are provided at the rear air outlet plates 62 corresponding to the uppermost refrigerating compartment and the refrigerating compartment located above the air inlet plate 61 and closest to the air inlet plate 61. It should be noted that although the height position of the shelf 9 can be adjusted up and down according to the usage needs, the principle of height adjustment usually defaults to making the height of the air outlet located in the upper middle part of the refrigerating compartment, that is, the air outlet does not correspond to the lower part of the refrigerating compartment; further explanation, because the products are placed on the shelves 9 of the refrigerating compartment, compared with the lower part of the refrigerating compartment, the space in the upper middle part of the refrigerating compartment is usually relatively loose, and the cold air flowing out of the air outlet blows to the upper middle part of the refrigerating compartment, which is more convenient for the diffusion and flow of cold air in the refrigerating chamber 102 and is beneficial to improving the temperature uniformity in the cabinet.

[0072] Referring to Figure 14 、 Figure 16 As shown, in some embodiments, the arc-shaped air guiding ribs 6321 on the air deflector 632 include a first arc-shaped rib 6324 and a second arc-shaped rib 6325 located on the left and right sides of the air inlet 630, and the first arc-shaped rib 6324 and the second arc-shaped rib 6325 are arranged in sequence and connected to each other along the rotation direction of the centrifugal fan 8; the horizontal distance between the upper end of the second arc-shaped rib 6325 and the center of the air inlet 630 is greater than the horizontal distance between the upper end of the first arc-shaped rib 6324 and the center of the air inlet 630, and the radius of the second arc-shaped rib 6325 is greater than the radius of the first arc-shaped rib 6324.

[0073] On one side of the rear air outlet panel 62 facing the air duct baffle 63, a deflector 624 is convexly provided to fit the air duct baffle 63. The deflector 624 is located above the air inlet 630. The deflector 624 includes a first deflector rib 6242, a second deflector rib 6243 and two vertically arranged deflector ribs 6241 arranged oppositely. The upper ends of the two vertically arranged deflector ribs 6241 are respectively connected smoothly to the left and right sides of the air distribution platform 1111. The upper end of the first deflector rib 6242 is connected to the lower end of one of the vertically arranged deflector ribs 6241. The lower end of the first deflector rib 6242 extends downward below the other vertically arranged deflector rib 6241, so that the first deflector rib 6242 is wound around the upper side of the air inlet 630. A second deflector rib 6243 is connected between the lower end of the first deflector rib 6242 and the vertically arranged deflector rib 6241 above it. The second deflector rib 6243 and the second arc rib 6325 are on the same side in the left-right direction of the air inlet 630, that is, the connection point of the first deflector rib 6242 and the second deflector rib 6243 is located between the second arc rib 6325 and the air inlet 630.

[0074] Further explanation, when the centrifugal fan 8 rotates, it blows cold air into the left and right rear air ducts 1033. Through the matching setting of the arc air guide ribs 6321 and the deflector 624, the cold air can be guided to be evenly transported into the left and right rear air ducts 1033, thereby balancing the cold air output of the rear air outlets 620 arranged oppositely on the left and right.

[0075] It can be understood that although the arc air guide ribs 6321 are arranged on the air duct baffle 63 and the deflector 624 is arranged on the rear air outlet panel 62 in this embodiment, the arc air guide ribs 6321 and the deflector 624 can also be arranged on the air duct baffle 63 at the same time or on the rear air outlet panel 62 at the same time, or the arc air guide ribs 6321 can be arranged on the air outlet panel and the deflector 624 can be arranged on the air duct baffle 63. Those skilled in the art can set them flexibly according to the actual situation, and the present invention is not limited thereto.

[0076] In the above-mentioned illustrative embodiment, through the matching setting of the arc air guide ribs 6321 on the air guide plate 632 and the first arc rib 6324 and the second arc rib 6325 on the deflector 624, the cold air output of the rear air outlets 620 arranged oppositely on the left and right is balanced, which is beneficial to improving the temperature balance in the cabinet.

[0077] In summary, for the upright freezer of the present utility model, through the specific design of the lower accommodating cavity 101 of the cabinet body 1, the optimization and utilization of the lower space of the cabinet body 1 are realized, and the storage space inside the cabinet is increased; through the matching setting of the air duct assembly 6, the rear centrifugal fan 8 and the evaporator 7, the space occupation ratio of the fan and the evaporator 7 is reduced, and the storage space inside the cabinet is increased; in addition, through the settings of the air inlet 610, the rear air outlet 620 and the front air outlet 640, the temperature balance inside the cabinet is improved, and the cooling speed of the products near the door body 2 inside the cabinet is increased, facilitating consumers to directly take products with the expected refrigeration effect from the front row, better adapting to the actual use scenario and improving the consumption experience.

[0078] Finally, it should be noted that: the various embodiments in this specification are described in a progressive manner, and the key point of each embodiment is to illustrate the differences from other embodiments. For the same or similar parts among the various embodiments, reference can be made to each other.

[0079] The above embodiments are only used to illustrate the technical solutions of the present utility model and not to limit them; although the present utility model has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that: still modifications can be made to the specific implementation manners of the present utility model or equivalent replacements can be made to some technical features without departing from the spirit of the technical solutions of the present utility model, and they should all be covered within the scope of the technical solutions claimed by the present utility model.

Claims

1. A vertical refrigerator, comprising a cabinet body and a door body rotatably connected to the front side of the cabinet body, characterized in that: The lower part of the cabinet defines a containing cavity, which includes a first cavity away from the door body and a second cavity close to the door body, and the top surface of the first cavity is higher than the top surface of the second cavity; a condenser and a compressor are installed in the first cavity, and a water receiving pan is installed in the second cavity; The cabinet has an inner container with a front opening, and the inner container includes a container rear wall located at the rear, a container top wall located at the top, and a first container bottom wall and a second container bottom wall located at the bottom and staggered up and down, wherein the first container bottom wall and the second container bottom wall are located directly above the first cavity and the second cavity, respectively; The upright freezer also includes an air duct assembly; the lower part of the air duct assembly is connected to the bottom wall of the first gallbladder, and the upper part of the air duct assembly is connected to the top wall of the gallbladder, a rear air duct is formed between the air duct assembly and the rear wall of the gallbladder, and the inner gallbladder space on the front side of the air duct assembly is a refrigeration cavity; the rear air duct has an air inlet and a rear air outlet connected to the refrigeration cavity, and an evaporator and a centrifugal fan are sequentially arranged in the rear air duct along the direction from the air inlet to the rear air outlet.

2. The vertical freezer according to claim 1, wherein, The air duct assembly includes a rear air outlet plate and an air inlet plate connected up and down, the lower end of the air inlet plate is connected to the first gallbladder bottom wall, the upper end of the rear air outlet plate is connected to the gallbladder top wall, the air inlet plate is provided with the air inlet, and the rear air outlet plate is provided with a plurality of the rear air outlets arranged left and right; an air duct baffle is connected between the rear air outlet plate and the gallbladder rear wall to separate the rear air duct into a rear first air duct and a rear second air duct along the direction from the air inlet to the rear air outlet; an air duct baffle is provided on the air duct baffle to connect the rear first air duct and the rear second air duct; the evaporator is clamped in the rear first air duct; the centrifugal fan is arranged in the rear second air duct and its air inlet end is directly opposite to the air duct.

3. The vertical freezer according to claim 2, characterized in that, The air inlet plate includes a front air inlet plate and an upper air inlet plate; the front air inlet plate is vertically arranged, and its lower end is connected to the middle part of the bottom wall of the first tank; the upper air inlet plate is horizontally arranged, one end of which is connected to the upper end of the front air inlet plate, and the other end extends toward the rear wall of the tank and is connected to the lower end of the rear air outlet plate; the air inlet includes a front air inlet arranged on the front air inlet plate and an upper air inlet arranged on the upper air inlet plate.

4. The vertical freezer according to claim 3, characterized in that, The inner tank also includes a left tank wall located on the left side and a right tank wall located on the right side; an air inlet grille is provided at the front air inlet, and the air inlet grille includes a plurality of vertically extending left air inlet grid plates and a plurality of vertically extending right air inlet grid plates; a plurality of the left air inlet grid plates are arranged at intervals from the middle of the front air inlet to the side close to the left tank wall, and the left air inlet grid plates are all inclined toward the left tank wall; a plurality of the right air inlet grid plates are arranged at intervals from the middle of the front air inlet to the side close to the right tank wall, and the right air inlet grid plates are all inclined toward the right tank wall; the upper air inlet includes a plurality of upper air inlet holes arranged at intervals from the middle of the front air inlet, and the upper air inlet holes are in the shape of longitudinal holes; A rear air outlet grille is provided at each of the rear air outlets. The rear air outlet grille includes a plurality of left air outlet grille plates extending vertically and a plurality of right air outlet grille plates extending vertically. The plurality of left air outlet grille plates are horizontally spaced from the middle of the rear air outlet towards the side close to the left wall of the bile, and the left air outlet grille plates are all inclined towards the left wall of the bile. The plurality of right air outlet grille plates are horizontally spaced from the middle of the rear air outlet towards the side close to the right wall of the bile, and the right air outlet grille plates are all inclined towards the right wall of the bile.

5. The upright freezer according to claim 2, characterized in that, The air duct assembly further includes a top air outlet plate connected to the top wall of the bile. The rear end of the top air outlet plate is connected to the upper end of the rear air outlet plate. A top air duct communicating with the rear second air duct is formed between the top air outlet plate and the top wall of the bile. A front air outlet is provided at the front end of the top air outlet plate, so that the top air duct is also communicated with the refrigerating chamber.

6. The upright freezer according to claim 5, wherein A front air outlet grille is provided at the front air outlet. The front air outlet grille includes a front air outlet front guide plate and a front air outlet rear guide plate arranged opposite to each other in the front and rear. A plurality of front air outlet grille plates are horizontally spaced and connected between the front air outlet front guide plate and the front air outlet rear guide plate. The upper end of the front air outlet front guide plate extends obliquely towards the top air duct, and its lower end extends obliquely downwards away from the door body. The upper end of the front air outlet rear guide plate is flush with the bottom surface of the top air duct, and its lower end extends obliquely downwards away from the door body.

7. The vertical freezer according to claim 6, characterized in that, The front air outlet grille further includes at least one front air outlet partition. The front air outlet partition is located between the front air outlet front guide plate and the front air outlet rear guide plate and is connected to all the front air outlet grille plates. The front air outlet partition includes a front air outlet air distribution plate and a front air outlet middle guide plate. The front air outlet air distribution plate is located in the middle in the height direction of the top air duct and its rear end extends away from the door body. The upper end of the front air outlet middle guide plate is connected to the front end of the front air outlet air distribution plate, and its lower end extends obliquely downwards away from the door body.

8. The vertical freezer according to claim 2 or 5, characterized in that, A wind rectifying plate that fits the rear wall of the bile protrudes from the side of the air duct baffle facing the rear wall of the bile. The wind rectifying plate includes two vertical wind rectifying ribs and two oblique wind rectifying ribs arranged opposite to each other on the left and right sides of the air inlet. The lower ends of the two vertical wind rectifying ribs are respectively connected smoothly to the left and right sides of the evaporator. The lower ends of the two oblique wind rectifying ribs are respectively connected to the upper ends of the two vertical wind rectifying ribs. The upper ends of the two oblique wind rectifying ribs both extend obliquely upwards towards the upper part of the air inlet and are connected together by an arc-shaped wind rectifying rib. The air inlet is located below the arc-shaped wind rectifying rib.

9. The vertical freezer according to claim 5, wherein, A wind guide plate that fits the rear air outlet plate protrudes from the side of the air duct baffle facing the rear air outlet plate. The wind guide plate includes an arc-shaped wind guide rib, a first wind guide rib, and a second wind guide rib. The arc-shaped wind guide rib is semi-enclosed around the middle and lower part of the air inlet. The lower ends of the first wind guide rib and the second wind guide rib are respectively connected to the upper ends on the left and right sides of the arc-shaped wind guide rib. The upper ends of the first wind guide rib and the second wind guide rib respectively extend obliquely upwards away from the air inlet until they are respectively connected smoothly to the left and right sides of the rear second air duct. On the rear wall of the inner liner located in the second rear air duct, a wind dividing platform that fits with the rear air outlet plate is convexly provided. The wind dividing platform is located directly above the centrifugal fan and vertically extends to the top wall of the inner liner to divide the second rear air duct into two left and right rear branch air ducts; a plurality of the rear air outlets are arranged corresponding to the two left and right rear branch air ducts; on the top wall of the inner liner, a wind guiding platform that fits with the top air outlet plate is convexly provided. The rear end of the wind guiding platform is smoothly connected to the upper end of the wind dividing platform, and both the left and right sides of the wind guiding platform are inclined towards the middle of the front air outlet.

10. The vertical freezer according to claim 9, wherein, The arc-shaped wind guiding ribs include a first arc-shaped rib and a second arc-shaped rib located on the left and right sides of the air inlet and sequentially connected along the rotation direction of the centrifugal fan. The horizontal distance between the upper end of the second arc-shaped rib and the center of the air inlet is greater than the horizontal distance between the upper end of the first arc-shaped rib and the center of the air inlet, and the radius of the second arc-shaped rib is greater than the radius of the first arc-shaped rib; On the side of the rear air outlet plate facing the air duct baffle, a flow guiding plate that fits with the air duct baffle is convexly provided. The flow guiding plate is located above the air inlet; the flow guiding plate includes a first flow guiding rib, a second flow guiding rib, and two vertically arranged flow guiding ribs arranged oppositely. The upper ends of the two vertically arranged flow guiding ribs are respectively smoothly connected to the left and right sides of the wind dividing platform. The upper end of the first flow guiding rib is connected to the lower end of one of the vertically arranged flow guiding ribs. The lower end of the first flow guiding rib extends downward to the other vertically arranged flow guiding rib, so that the first flow guiding rib is wound around the upper side of the air inlet; a second flow guiding rib is connected between the lower end of the first flow guiding rib and the vertically arranged flow guiding rib above it. The second flow guiding rib and the second arc-shaped rib are located on the same side of the air inlet.

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