CN206369385U - Vertical refrigerating cabinet with top transparent show area - Google Patents

Abstract

The utility model discloses a vertical refrigeration cabinet with a transparent display area on the top, which comprises a vertical heat preservation shell and a refrigeration system. The refrigeration system includes a compressor, a condenser, a throttling device and an evaporator. Shell and liner, the shell includes a U-shaped main body, an upper beam, a back plate, a machine compartment and a rear cover, the U-shaped main body has a bottom and two sides, the back plate is located above the machine compartment, and the rear cover covers the machine compartment and the back plate, the compressor is set in the machine compartment, and the condenser is fixed on the back plate; the top of the liner is provided with a window communicating with the storage cavity, and the liner is set in the outer shell; the vertical display area with a top transparent display area The refrigerating cabinet also includes insulating glass parts, which cover the window, and a foaming cavity is formed between the insulating glass parts, the U-shaped main body, the upper beam, the backboard, the machine compartment and the liner, and the foaming cavity is formed in the foaming cavity. Bubble layer. It satisfies the user's need to view the items in the box from the top, and improves the user's expressiveness and convenience of use.

Description

Upright Refrigerated Cabinet with Transparent Top Display

technical field

The utility model relates to a vertical refrigerating cabinet with a top transparent display area, in particular to a vertical refrigerating cabinet with a top transparent display area.

Background technique

At present, vertical refrigerators (refrigerators, freezers, etc.) with a top transparent display area are household appliances commonly used in people's daily life, and refrigerators are widely used because of their large storage capacity. Freezers are divided into vertical freezers and horizontal freezers. For vertical freezers, side door openings are used (for example: hinged doors or drawers can be used), and with the improvement of people's living standards, small vertical freezers Freezers, such as ice bar products, are widely promoted. Usually, the height of ice bar products is relatively short, which is different from conventional vertical freezers. The convenience of use is poor. How to design a vertical refrigerating cabinet with a top transparent display area that improves user representation and ease of use is the technical problem to be solved by the utility model.

Utility model content

The utility model provides a vertical refrigerating cabinet with a transparent display area on the top, which enables users to view items in the cabinet from the top under the premise of ensuring heat preservation performance, and improves user performance and convenience of use.

In order to achieve the above-mentioned technical purpose, the utility model adopts the following technical solutions to realize:

A vertical refrigerated cabinet with a transparent display area on the top, comprising a vertical thermal insulation shell and a refrigeration system, the refrigeration system includes a compressor, a condenser, a throttling device and an evaporator connected together, the vertical thermal insulation The front of the shell forms an opening, and the vertical heat preservation shell includes an outer shell and an inner tank, and the inner tank forms a storage cavity, wherein the outer shell includes a U-shaped main body, an upper beam, a back plate, and a machine compartment and a rear cover, the U-shaped main body has a bottom and two side portions, and the upper beam, the back plate, the machine compartment and the rear cover are arranged on the two side portions of the U-shaped main body Between, the backboard is located above the cabin, the upper beam is located at the front side of the backplane, the rear cover covers the cabin and the backplane, the rear cover, The machine compartment and the back plate form a heat dissipation cavity, the compressor is arranged in the machine compartment, the condenser is fixed on the back plate, and the rear cover is provided with a cold air inlet and a hot air inlet Outlet, the heat dissipation cavity is provided with a heat dissipation fan; the top of the inner tank is provided with a window communicating with the storage cavity, and the inner tank is arranged in the outer shell; the transparent display area with the top The upright refrigerated cabinet further includes an insulating glass part, the insulating glass part covers the window, the insulating glass part, the U-shaped main body, the upper beam, the backboard, the machine compartment and A foaming cavity is formed between the inner tanks, and a foaming layer is formed in the foaming cavity.

Compared with the prior art, the advantages and positive effects of the utility model are: by opening a window on the top of the vertical heat-insulating shell, the window is blocked and sealed by the heat-insulating glass part, and the user can directly view the storage chamber through the window from the upper part The items stored in the body, and in order to ensure the thermal insulation performance, the thermal insulation glass part forms a foaming cavity together with the inner tank and the outer shell of the vertical thermal insulation shell, and the foaming layer formed in the foaming cavity can ensure the entire foaming The thermal insulation performance of the box avoids the loss of cooling at the connection surface between the window and the thermal insulation glass part. On the other hand, the foam layer further fixes the thermal insulation glass part on the vertical thermal insulation shell. The vertical foaming box forms an overall structure, effectively improving the overall structural strength of the box, thereby overcoming the defect of insufficient upper structural strength due to the opening of windows on the top of the vertical insulation shell, and realizing the premise of ensuring thermal insulation performance Next, the user can view the items in the storage cavity from the top, which improves user expressiveness and convenience of use.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the appended drawings in the following description The drawings are some embodiments of the utility model, and those skilled in the art can also obtain other drawings according to these drawings on the premise of not paying creative labor.

Fig. 1 is the structural representation of the utility model having the vertical refrigerating cabinet of top transparent display area;

Fig. 2 is the cross-sectional view of the vertical refrigeration cabinet with the top transparent display area of the utility model;

Fig. 3 is a sectional view of the utility model vertical foaming box;

Fig. 4 is a partially enlarged schematic diagram of area A in Fig. 3;

Fig. 5 is a partially enlarged schematic diagram of area B in Fig. 3;

Fig. 6 is the explosion diagram of the vertical foaming box of the present utility model;

Figure 7 is an exploded view of the thermal insulation glass part of the present invention;

Fig. 8 is a schematic structural view of the air duct module of the present invention;

Fig. 9 is an exploded view of the air duct module of the present invention;

Fig. 10 is an exploded view of the utility model storage drawer.

detailed description

In order to make the purpose, technical solutions and advantages of the embodiments of the utility model more clear, the technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the utility model. Obviously, the described The embodiments are some embodiments of the present utility model, but not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

As shown in Figures 1 to 10, the vertical refrigerated cabinet with a top transparent display area provided by the utility model adopts a vertical foaming box 100, and the vertical foaming box 100 can adopt a hinged heat preservation door , Also can adopt the mode of storage drawer to realize switch. The vertical refrigerating cabinet with the top transparent display area is equipped with a refrigerating system, and the refrigerating system is composed of a compressor 301 , a condenser 302 , a throttling device and an evaporator 303 .

Wherein, in order to realize the function of transparent display at the top, the vertical foaming box 100 includes a vertical thermal insulation shell 1, the front of the vertical thermal insulation shell 1 forms an opening, and the vertical thermal insulation shell 1 includes a shell 11 and The inner tank 12 arranged in the outer shell 11, the inner tank 12 forms a storage cavity, and the top of the vertical thermal insulation shell 1 is provided with a window 121 communicating with the storage cavity, the vertical The type foaming box 100 also includes an insulating glass part 2, the insulating glass part 2 covers the window 121, and a foaming cavity is formed between the insulating glass part 2, the outer shell 11 and the inner container 12 body, a foam layer is formed in the foam cavity. Specifically, the vertical foaming box 100 forms a window 121 on the top of the vertical heat insulating shell 1, and the window 121 is covered and sealed by the heat insulating glass part 2. During actual use, the user can view the window 121 through the heat insulating glass part 2 121 to observe the articles stored in the storage cavity; and in order to ensure the overall sealing and heat preservation performance of the vertical foaming box 100, a foaming cavity is formed between the insulating glass part 2 and the outer shell 11 and the inner tank 12, The way of integral foaming is adopted, so that a foam layer is formed between the heat insulating glass part 2, the outer shell 11 and the inner tank 12, and the foam layer will seal the connection formed between the window 121 and the heat insulating glass part 2 surface, reduce the leakage of cold energy from the window 121, and improve the thermal insulation performance; at the same time, while ensuring the thermal insulation performance, since the thermal insulation glass part 2, the outer shell 11 and the inner tank 12 are integrally foamed to form a foam layer, The direct connection strength of the three is greatly enhanced, and the thermal insulation glass part 2 will overcome the defect that the structural strength of the top of the vertical thermal insulation casing 1 is reduced due to the opening of the window 121 on the top of the vertical thermal insulation casing 1, thereby ensuring that the vertical foaming box body 100% reliability in use. Wherein, the shell 11 may include a U-shaped main body 111, an upper beam 112 and a back plate 113, the U-shaped main body 111 has a bottom and two side portions, the upper beam 112 and the back plate 113 are arranged on the U-shaped Between the two sides of the main body 111, the upper beam 112 is located in front of the back plate 113, and the top of the inner tank 12 is provided with the window 121. Specifically, the outer casing 11 adopts a U-shaped main body 111 to achieve an integrated appearance effect , the overall structure is more stable, and an installation area for installing the heat insulating glass part 2 is formed on the top of the shell 11, and after the liner 12 is placed in the U-shaped main body 111, the window 121 at the top of the liner 12 is located in the installation area, thereby After installing the insulating glass part 2, the window 121 can be covered by the insulating glass part 2, which is more convenient for the vertical foaming box 100 to be quickly assembled for foaming; and in order to facilitate the installation of the compressor 301, the casing 11 is provided with an organic compartment 114 and The rear cover 115, the bottom of the U-shaped main body 111 is provided with a notch structure (unmarked), and the bottom of the liner 2 is correspondingly formed with a recessed structure (not marked), and the recessed structure and the notch structure form an installation cavity , the organic compartment 114 is arranged in the installation cavity, and the rear cover 115 is arranged on the back of the casing 11 to cover the back panel 113 and the compartment 114, the rear cover 115, the compartment 114 and the back panel 113 A heat dissipation cavity is formed, the compressor 301 is arranged in the machine compartment 114, the condenser 302 is fixed on the back plate 113, the rear cover plate 115 is provided with a cold air inlet and a hot air outlet, and the A heat dissipation fan 101 is arranged in the heat dissipation chamber, and the heat dissipation fan sucks the outside air into the heat dissipation chamber from the cold air inlet, and the air is discharged from the hot air outlet after exchanging heat with the condenser 302 and the compressor 301 to realize heat dissipation. In addition, the insulating glass part 2 includes a panel 21, a vacuum glass plate 22 and a foam frame 23, the vacuum glass plate 22 and the foam frame 23 are fixed on the lower surface of the panel 21, and the foam frame 23 surrounds On the periphery of the vacuum glass plate 22, the foam frame 23 has a flanging structure 231, and the flanging structure 231 covers the panel 21, and the foam frame 23 is connected to the outer shell 11 and the inner container. 12 to form the foaming cavity. Specifically, the heat insulating glass part 2 is assembled by a panel 21, a vacuum glass plate 22 and a foam frame 23, the heat insulating glass part 2 is installed on the shell 11 through the foam frame 23, and the vacuum glass plate 22 is located at the window 121, and A foaming cavity is formed between the foam frame 23, the U-shaped main body 111, the upper beam 112, the back plate 113, the machine compartment 114 and the inner tank 12, and a foaming cavity is formed in the foaming cavity. Foam layer, and the inner ring of the window 121 can be provided with a window frame 122, the edge of the window frame 122 is provided with a mounting plate (not marked), the window frame is inserted in the window 121, and the mounting plate is fixed on the The inner top wall of the liner 12, the foam frame 23 is clamped on the window frame 122. During the foaming process, after the foam material is hardened, the foam layer is full of the foam cavity, so that the foam The bubble frame 23 is deformed and squeezed on the edge of the vacuum glass plate 22, which can make the insulating glass part 2 and the vertical insulating shell 1 more firmly and reliably assembled together. In order to meet the different needs of different users for the appearance of the casing 11, detachable decorative panels 16 are provided on both sides of the casing 11. Specifically, the decorative panels 16 are mounted on the casing 11 in a detachable manner. According to the needs of users, decorative panels 16 with different appearance effects can be used to meet the individual needs of users, wherein, the two sides of the U-shaped main body 111 are respectively provided with first insertion parts 116, and the decorative panels 16 The inner surface of the inner surface is provided with a second socket part (not shown), the first socket part 116 and the second socket part are plugged together; in order to achieve a good connection between the decorative plate 16 and the insulating glass part , the edge of the flange structure 231 is provided with a first engaging portion 232, the upper edge of the decorative plate 16 is provided with a second engaging portion 161, the first engaging portion 232 and the second engaging portion 161 Cards fit together.

Further, in order to improve the top display effect, a lighting lamp is arranged below the viewing window 121 in the storage cavity, and the light generated by the lighting lamp will illuminate the space around the viewing window 121, wherein, the lighting lamp may include light emitting The substrate and the light source arranged under the light-emitting substrate make up the lighting lamp to form a surface light source 15, which improves the display effect; for example: a transparent wine rack or a hollowed-out wine rack 500 can be arranged below the window 121, and the surface light source 15 is located below the hollowed-out wine rack 500 After the wine is placed on the hollow wine rack 500, the surface light source 15 illuminates the wine bottles through the hollow wine rack 500, so that the user can better see the wine on the hollow wine rack 500 from the top. In order to utilize the space of the storage cavity more effectively, a thermal insulation partition 13 is arranged in the storage cavity, and the thermal insulation partition 13 divides the storage cavity into display cavities (unmarked) arranged up and down. and the lower storage cavity (unmarked), the hollow wine rack 500 is located in the display cavity, and the surface light source 15 is arranged on the thermal insulation partition 13, wherein the thermal insulation partition 13 is installed in a detachable manner In the storage cavity, a center beam 14 is arranged in the opening on the vertical heat insulation shell 1, and a supporting protrusion (not marked) is formed on the inner wall of the inner tank 12 correspondingly, and the center beam and The supporting protrusions form an annular surrounding frame, and the thermal insulation partition 13 is detachably installed in the annular surrounding frame. Wherein, the center sill 14 can be an independent component, and the inside of the center sill 14 is provided with heat-insulating materials, or, the two ends of the center sill 14 are provided with through holes communicating with the foaming cavity, and the center sill 14 also An integrally foamed foam layer is formed. In addition, the thermal insulation glass part 2 is also used to install and fix the control panel 600, and the control panel 600 is detachably installed on the lower surface of the thermal insulation glass component 2. Specifically, the touch area 211 is formed on the panel 21, The flange structure 231 is provided with an installation opening 232 , and the control panel 600 is snapped into the installation opening 232 .

The specific assembly method of the vertical foaming box body 100 of the present utility model is as follows:

Step 1: Preinstall the inner tank 12 on the outer shell 11 to form a vertical heat-insulating shell 1 . Specifically, the liner 12 is pre-installed in the U-shaped main body 111, and the upper beam 112, the back plate 113 and the machine compartment 114 are installed on the front and rear sides of the U-shaped main body 111 to form a vertical heat preservation shell. Wherein, after the liner 12 is pre-installed in the U-shaped main body 111, the upper beam 112, the middle beam 14 and the back plate 113 are fixed on the U-shaped main body 111 by adhesive tape to realize pre-installation and fixing.

Step 2: Assemble the insulating glass part 2 with the vertical insulating shell 1, the insulating glass part 2 covers the window 121, and a foaming cavity is formed between the insulating glass part 2, the outer shell 11 and the inner tank 12. Specifically, place the heat insulating glass part 2 below, place the vertical heat insulating shell 1 upside down and install it on the heat insulating glass part 2 from above the heat insulating glass part 2, the heat insulating glass part 2 covers the window 121, and the heat insulating glass part 2 1. A foaming cavity is formed between the shell 11 and the inner tank 12, wherein, after placing the vertical heat insulating shell 1 upside down and installing it on the heat insulating glass part 2 from above the heat insulating glass part 2, the vertical heat insulating shell 1 is clamped on the foaming frame 23 of the thermal insulation glass part 2, and the window frame 122 on the inner tank 12 of the vertical thermal insulation shell 1 is clamped and connected with the foaming frame 23, the foaming frame 23, the outer shell 11 and the inner The foaming cavity is formed between the bladders 12 . However, due to the heavy weight of the warm glass part 2, if it is installed from the top, it will be difficult to install, and the buckle will be difficult to align. For the problem of box damage, placing the insulating glass part 2 below can avoid the deformation of the shell 11 before foaming due to the heavy weight of the insulating glass part 2. On the other hand, the insulating glass part 2 Placed at the bottom, the foaming material flows to the bottom, and a denser foam layer can be formed at the window 121, improving the thermal insulation performance and connection reliability at the window 121.

Step 3: Inject foaming material into the foaming cavity, the foaming material forms a foaming layer in the foaming cavity, and the insulating glass part 2, the shell 11 and the liner 12 are connected together through the foaming layer.

Based on the above technical solution, optionally, the vertical cooling cabinet with the top transparent display area can adopt the direct cooling method, for example: the evaporator is arranged on the inner tank 12; the vertical cooling cabinet with the top transparent display area can also be Air cooling is adopted, and the modular air duct 400 is used for air supply. Specifically, the modular air duct 400 includes an air duct housing 41 and a fan 42, and the air duct housing 41 is provided with an air outlet 401 and an air return outlet. 402, the fan 42 is arranged on the air duct housing 41, the evaporator 303 and the modular air duct 400 are arranged at the back of the storage cavity of the inner tank 12; the storage cavity The air in the air is sucked from the air return port 402 and is blown into the storage cavity from the air outlet 401 through the fan 42 after heat exchange by the evaporator 303; due to factors such as gravity and the fan 42 Influenced by the traditional upright freezer, after the cold air is blown out, the cold air still has a tendency to sink. For a space with a short height, there will be cases where the cold air cannot circulate in the front and rear of the storage cavity, resulting in insufficient air circulation on the front side. (close to the side of the freezer door) and the rear side (close to the back panel of the freezer) have dead angles, resulting in an increase in the temperature difference between this place and the temperature inside the box, and in order to meet the requirements of smooth air circulation and uniform temperature distribution, the outlet The air outlet 401 and the return air outlet 402 are respectively located at the corresponding side walls of the storage cavity, and a horizontal air flow is formed between the air outlet 401 and the air return outlet 402. After the fan 42 is started, the cold air is blown out horizontally from the air outlet 401 After exchanging heat with the food in the storage cavity, it is sucked by the negative pressure generated by the fan 42 from the air return port 402 on the other side, and the sucked air is cooled by the evaporator 303, and then blown out from the air outlet 401, because The air outlet 401 and the return air outlet 402 of the circulation are arranged horizontally, and the convection exchange of cold air on this horizontal plane is relatively sufficient, thereby reducing the temperature difference between the front, rear, left, and right points on the spatial plane dimension. For the vertical refrigeration cabinet with a top transparent display area involved in the utility model, the height of the display cavity is relatively short, and the modular air duct 400 is located in the display cavity. The air outlet 401 and the return air outlet 402 are respectively located in the At the position corresponding to the side wall of the storage cavity, the airflow forming a horizontal flow in the display cavity; and for the higher height of the lower storage cavity, the modular air duct 400 is located between the air outlet 401 and the lower storage cavity. The air return port 402 can adopt a conventional arrangement, that is, the air outlet 401 and the air return port 402 are arranged up and down. Wherein, the air duct housing 41 includes a front housing 411 and a rear housing 412 connected together, the front housing 411 is provided with the air outlet 401 and the air return opening 402, and the air duct housing 41 An insulator 43 is provided, and an air outlet channel 431 and an air return channel 432 are formed in the insulator 43, the air outlet channel 431 communicates with the air outlet 401, and the return air channel 432 communicates with the air return port 402 , the rear surface of the heat insulating body 43 is formed with a groove (not shown), and an air outlet cavity is formed between the groove and the rear shell 412, and the fan 42 is arranged in the air outlet cavity , by setting the corresponding air outlet channel 431 and return air channel 43 on the heat preservation body 43, it can ensure that the air outlet and return air do not interfere with each other. The air outlet channel 431 and the return air channel 43 are combined to ensure uniform cooling distribution. The rear shell 412 is provided with ventilation holes, the fan is arranged on the rear shell and covers the ventilation holes 413, and the evaporator 303 Located between the return air passage 43 and the ventilation hole 413, the air in the storage cavity is conveyed to the evaporator 303 through the return air passage 43, and under the action of the fan 42, the air output by the return air passage 43 passes through and After heat exchange, the evaporator 303 enters the air outlet cavity from the vent 413, the rear shell 412 is provided with the outlet of the return air passage 432, and the evaporator 303 is fixed on the rear shell 412 and covers Close the outlet of the return air channel 432. In order to accurately control the temperature of the storage sub-cavity divided by the thermal insulation partition 13, the air outlet passage 431 or the air outlet 401 is provided with a damper 44, and the temperature of the damper 44 can be controlled accurately. Control the temperature of different storage sub-chambers. In addition, for the air-cooled vertical refrigerator with a transparent display area on the top, when the insulation partition 13 is installed, a support beam 414 is formed on the front shell 411, and the middle beam 14, the support beam 414 and the support The protrusions form an annular enclosure.

For the method of adopting the thermal insulation door body 200', the thermal insulation door body 200' is installed on the vertical thermal insulation shell 1 through a hinge, wherein the thermal insulation door body 200' can adopt a foamed door body or a vacuum glass door. For the way of using the storage drawer 200, the inner container 12 is provided with a slide rail 20, and the storage drawer 200 is installed on the slide rail 20, wherein, for the vertical The insulation shell 1, the bottom of the storage drawer 200 located in the uppermost storage sub-cavity is a transparent structure, and the hollow wine rack 500 is placed in the storage drawer 200, and the storage drawer 200 includes a drawer front panel 201 and a tray 202 , the drawer front panel 201 is provided with a support frame 203 , the support frame 203 is installed on the slide rail 20 , and the tray 202 is overlapped on the support frame 203 . Preferably, in order to facilitate the user to observe the stored items from the side of the storage drawer 200, the drawer front panel 201 is made of vacuum glass, and the edge of the drawer front panel 201 is provided with a shielding layer (unmarked), and the shielding layer is described The surrounding area forms the see-through area.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present utility model, and are not intended to limit it; although the utility model has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: It is still possible to modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit of the technical solutions of the embodiments of the present invention. and range.

Claims (10)

1. A vertical refrigerated cabinet with a top transparent display area, comprising a vertical thermal insulation shell and a refrigeration system, the refrigeration system comprising a compressor connected together, a condenser, a throttling device and an evaporator, the vertical Openings are formed on the front of the vertical thermal insulation shell, and the vertical thermal insulation shell includes a shell and an inner tank, and the inner tank forms a storage cavity. It is characterized in that the outer shell includes a U-shaped main body, an upper beam, a back plate, A machine compartment and a rear cover, the U-shaped main body has a bottom and two side parts, and the upper beam, the back plate, the machine compartment and the rear cover are arranged on two sides of the U-shaped main body Between the side parts, the backboard is located above the machine compartment, the upper beam is located on the front side of the backplate, the rear cover covers the machine compartment and the backplate, and the rear cover plate, the machine compartment and the back plate form a heat dissipation cavity, the compressor is arranged in the machine compartment, the condenser is fixed on the back plate, and the rear cover plate is provided with a cold air inlet and a hot air outlet, the heat dissipation cavity is provided with a cooling fan; the top of the inner tank is provided with a window communicating with the storage cavity, and the inner tank is arranged in the outer shell; the top with a transparent The vertical refrigerated cabinet in the display area also includes insulating glass parts, the insulating glass parts cover the window, the insulating glass parts, the U-shaped main body, the upper beam, the back plate, the machine A foaming cavity is formed between the bin and the inner bag, and a foaming layer is formed in the foaming cavity. 2. The vertical refrigerated cabinet with a top transparent display area according to claim 1, characterized in that, the insulating glass parts include a panel, a vacuum glass plate and a foam frame, and the vacuum glass plate and the foam frame The frame is fixed on the lower surface of the panel, the foam frame surrounds the periphery of the vacuum glass plate, the foam frame has a flanging structure, the flanging structure covers the panel, and the foam frame The foaming cavity is formed between the shell and the liner. 3. The upright refrigeration cabinet with a top transparent display area according to claim 2, wherein a window frame is arranged on the inner ring of the window, and the foam frame is clamped on the window frame. 4. The vertical refrigerating cabinet with a top transparent display area according to claim 1, characterized in that, the bottom of the U-shaped main body is provided with a notch structure, and the bottom of the inner container is correspondingly formed with a recessed structure, and the The recessed structure and the notch structure form an installation cavity, and the machine compartment is arranged in the installation cavity. 5. The vertical refrigeration cabinet with a top transparent display area according to claim 1, further comprising a modular air duct, the modular air duct comprises an air duct housing and a fan, and the air duct housing The body is provided with an air outlet and an air return port, the fan is arranged on the air duct housing, the evaporator and the modular air duct are arranged at the back of the storage cavity; the storage cavity The air in the body is sucked from the air return port and blown into the storage cavity from the air outlet by the fan after heat exchange by the evaporator. 6. The vertical refrigerating cabinet with a top transparent display area according to claim 5, wherein the air return port and the air outlet are respectively located on the corresponding side walls of the storage cavity, and the A horizontally flowing airflow is formed between the return air outlet and the air outlet. 7. The vertical refrigerating cabinet with a top transparent display area according to claim 5, wherein the air duct housing comprises a front shell and a rear shell connected together, and the front shell is provided with the The air outlet and the air return port, the air duct shell is provided with a thermal insulation body, the air outlet channel and the return air channel are formed in the thermal insulation body, the air outlet channel communicates with the air outlet, and the return air The channel communicates with the air return port, a groove is formed on the rear surface of the heat insulating body, and an air outlet cavity is formed between the groove and the rear shell, and the fan is arranged in the air outlet cavity. 8. The vertical refrigerating cabinet with a top transparent display area according to claim 7, wherein a ventilation hole is arranged on the rear casing, and the fan is arranged on the rear casing and covers the ventilation hole, The evaporator is located between the return air channel and the ventilation hole. 9. The vertical refrigerated cabinet with a top transparent display area according to claim 5, wherein at least one thermal insulation partition is arranged in the storage cavity, and the thermal insulation partition divides the storage cavity It is a plurality of storage sub-cavities arranged up and down, and each of the storage sub-cavities is provided with a corresponding air outlet and a return air outlet on the air channel housing; The thermal insulation partition is provided with a surface light source. 10. The vertical refrigerating cabinet with a top transparent display area according to claim 9, wherein a center beam is arranged in the opening on the vertical thermal insulation shell, and the two side walls of the inner container Supporting protrusions are formed correspondingly, supporting beams are arranged on the air duct shell, and the central beam, the supporting beams and the supporting protrusions form a ring-shaped enclosure, and the thermal insulation partition is detachably installed on the in the circular frame.