CN114027675A

CN114027675A - Showcase

Info

Publication number: CN114027675A
Application number: CN202111350378.0A
Authority: CN
Inventors: 张海城; 谢恒�; 吴明国; 路培鑫; 苗志强; 肖勇
Original assignee: Gree Electric Appliances Inc of Zhuhai
Current assignee: Gree Electric Appliances Inc of Zhuhai
Priority date: 2021-11-15
Filing date: 2021-11-15
Publication date: 2022-02-11
Anticipated expiration: 2041-11-15
Also published as: CN114027675B

Abstract

The invention provides a display cabinet. The display cabinet comprises a cabinet body, wherein a plurality of layers of storage spaces are formed on the cabinet body, an air outlet duct is formed in the middle of the cabinet body, return air ducts are formed on the two sides of the air outlet duct on the cabinet body, the air outlet duct is communicated with each layer of the plurality of layers of storage spaces respectively, and the return air ducts are also communicated with each layer of the plurality of layers of storage spaces respectively. When the air-conditioning cabinet is used, the air is discharged from the middle air outlet duct of the cabinet body to the storage space of each layer, the storage space of each layer can also be provided with return air duct return air through the two sides located on the air outlet duct, so that the air outlet and the return air of the storage space of each layer are relatively independent, the temperature of each storage space is not easily influenced by the temperatures of other layers, and the balance of the temperatures of all the storage spaces is guaranteed.

Description

Showcase

Technical Field

The invention relates to the technical field of refrigeration equipment, in particular to a display cabinet.

Background

With the development of society and the improvement of the economic level of people, refrigerated display cabinets with display effects are increasingly used, and a refrigeration cycle system of the existing display cabinet generally comprises a compressor, an evaporator and a condenser which are sequentially connected through pipelines and form a loop cycle, so that a person can maintain the interior of the cabinet at a constant temperature by adjusting a set temperature.

The prior art uses the means through top layer output air curtain to bottom return air usually, and in-process shelf air outlet temperature is low, and shelf return air inlet temperature is high, can destroy the air curtain when just taking the goods, influences the temperature in the cabinet, can not effectively satisfy user's user demand, reduces and uses experience.

Disclosure of Invention

The embodiment of the invention provides a display cabinet, which aims to solve the technical problem that the temperature of each display layer is easily affected by return air and is unbalanced in the prior art.

An embodiment of the present invention provides a showcase including: the box is formed with multilayer storing space on, is formed with the air-out wind channel in the middle part of box, and the both sides that lie in the air-out wind channel on the box are formed with the return air duct, and each layer in air-out wind channel and the multilayer storing space communicates respectively, and the return air duct also communicates respectively with each layer in the multilayer storing space.

In one embodiment, an air outlet duct cavity and a return air duct cavity are formed in the rear side of the box body, a back plate is arranged on the upper covers of the air outlet duct cavity and the return air duct cavity, an air outlet duct is formed between the back plate and the air outlet duct cavity, a return air duct is formed between the back plate and the return air duct cavity, a back plate air outlet communicated with the air outlet duct is formed in the back plate, the back plate air outlet is used for discharging air to each layer of the multilayer storage space, a back plate return air inlet communicated with the return air duct is formed in the back plate, and the back plate return air inlet is used for returning air from each layer of the multilayer storage space.

In one embodiment, the display cabinet further comprises a plurality of shelves, the shelves are respectively arranged on the back plate to divide the interior of the cabinet into a plurality of storage spaces, shelf air return channels and shelf air return openings communicated with the shelf air return channels are formed in the shelves, the shelf air return channels are communicated with the back plate air return openings, and the shelf air return openings are communicated with the storage spaces.

In one embodiment, a shelf air outlet channel and a shelf air outlet communicated with the shelf air outlet channel are formed on the shelf, the shelf air outlet channel is communicated with the back plate air outlet, and the shelf air outlet is communicated with the storage space.

In one embodiment, the shelf return air inlet is located on the upper surface of the shelf and returns air in the storage space above the shelf; the air outlet of the shelf is positioned on the lower surface of the shelf and is used for exhausting air in the storage space below the shelf; or the rack return air inlet is positioned on the lower surface of the rack and returns air in the storage space below the rack; the shelf air outlet is positioned on the upper surface of the shelf and is used for exhausting air in the storage space above the shelf.

In one embodiment, the shelf air return opening is located at the opening of the storage space and/or the shelf air outlet opening is located at the opening of the storage space.

In one embodiment, the shelf air return opening and the shelf air outlet opening are disposed opposite one another at the opening of one of the storage spaces.

In one embodiment, the shelf comprises a first shelf and a second shelf which are arranged side by side, a first return air communication port communicated with the back plate return air inlet is formed on the right side of the back of the first shelf, and a second return air communication port communicated with the back plate return air inlet is formed on the left side of the back of the second shelf; the left side of the back of the first shelf is provided with a first air outlet communicating opening communicated with the back plate air return opening, and the right side of the back of the second shelf is provided with a second air outlet communicating opening communicated with the back plate air return opening.

In one embodiment, a refrigerating air port communicated with the uppermost layer of the multilayer storage space is arranged on the upper side of the box body, and the refrigerating air port is communicated with the air outlet channel.

In one embodiment, a sealed air outlet is further arranged on the upper side of the box body, a sealed air return opening is further arranged on the lower side of the box body, and the sealed air outlet and the sealed air return opening are located on the outer side of the multilayer storage space on the box body.

In the above embodiment, the air outlet duct is formed in the middle of the box body, the return air ducts are formed on the box body and located on two sides of the air outlet duct, and the storage space of each layer is independently communicated with the air outlet duct and the return air ducts. When the air-conditioning cabinet is used, the air is discharged from the middle air outlet duct of the cabinet body to the storage space of each layer, the storage space of each layer can also be provided with return air duct return air through the two sides located on the air outlet duct, so that the air outlet and the return air of the storage space of each layer are relatively independent, the temperature of each storage space is not easily influenced by the temperatures of other layers, and the balance of the temperatures of all the storage spaces is guaranteed.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate an embodiment of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:

FIG. 1 is a schematic front view of an embodiment of a display case according to the present invention;

FIG. 2 is a schematic cross-sectional view taken along line A-A of the display case of FIG. 1;

FIG. 3 is a schematic cross-sectional view taken in the direction B-B of the display case of FIG. 1;

FIG. 4 is a schematic view of the display case of FIG. 1 with the back panel removed;

FIG. 5 is a schematic view of the display case of FIG. 1 with the back panel installed;

fig. 6 is a perspective view of the shelf of the display case of fig. 1 and an exploded view thereof.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the following embodiments and accompanying drawings. The exemplary embodiments and descriptions of the present invention are provided to explain the present invention, but not to limit the present invention.

Note that, in fig. 2 and 3, the direction of the airflow flow is indicated by the line with an arrow.

Fig. 1, 2, 4 and 5 show an embodiment of the showcase of the present invention, which includes a case body 10, wherein a plurality of storage spaces 11 are formed on the case body 10, an outlet air duct 12 is formed at a middle portion of the case body 10, return air ducts 13 are formed on the case body 10 at both sides of the outlet air duct 12, the outlet air duct 12 is respectively communicated with each of the plurality of storage spaces 11, and the return air ducts 13 are respectively communicated with each of the plurality of storage spaces 11.

By applying the technical scheme of the invention, the air outlet duct 12 is formed in the middle of the box body 10, the return air ducts 13 are formed on the box body 10 and positioned at two sides of the air outlet duct 12, and the air outlet duct 12 and the return air duct 13 are independently communicated with the storage space 11 of each layer. When the air-conditioning cabinet is used, air is discharged from the middle air outlet duct 12 of the cabinet 10 to the storage space 11 on each layer, the storage space 11 on each layer can also be formed with return air ducts 13 for returning air through the two sides of the air outlet duct 12, so that the air outlet and the return air of the storage space 11 on each layer are relatively independent, the temperature of the storage space 11 on each layer is not easily influenced by the temperatures of other layers, and the balance of the temperatures of the storage spaces 11 on each layer is guaranteed.

As shown in fig. 4 and 5, in the technical solution of this embodiment, an air outlet duct cavity 121 and an air return duct cavity 131 are formed at the rear side of the box body, and a back plate 19 is covered on the air outlet duct cavity 121 and the air return duct cavity 131. An air outlet duct 12 is formed between the back plate 19 and the air outlet duct chamber 121, and a return air duct 13 is formed between the back plate 19 and the return air duct chamber 131. The back plate 19 is provided with a back plate air outlet 191 communicated with the air outlet duct 12, the back plate air outlet 191 is used for discharging air to each layer of the multilayer storage space 11, the back plate 19 is provided with a back plate air return inlet 192 communicated with the air return duct 13, and the back plate air return inlet 192 is used for returning air from each layer of the multilayer storage space 11. Optionally, as shown in fig. 4, the back plate 19 is divided into two parts, the two back plates 19 cover the portions of the return air duct 13 and the outlet air duct 12, and the two back plates 19 are combined together to completely cover the outlet air duct cavity 121 and the return air duct cavity 131. In this embodiment, the shelf includes a first shelf and a second shelf arranged side by side, a first return air communication port communicated with the back plate return air inlet 192 is formed on the right side of the back of the first shelf, and a second return air communication port communicated with the back plate return air inlet 192 is formed on the left side of the back of the second shelf; a first air outlet communication port communicated with the back plate air return port 192 is formed in the left side of the back of the first shelf, and a second air outlet communication port communicated with the back plate air return port 192 is formed in the right side of the back of the second shelf.

As other alternative embodiments, the back plate 19 may be a single piece, and it is also possible to completely cover the air outlet duct chamber 121 and the air return duct chamber 131 by a single piece of back plate 19.

As shown in fig. 2, in the technical solution of the present embodiment, the showcase further includes a plurality of shelves 20, and the plurality of shelves 20 are respectively disposed on the case body 10 to divide the multi-layer storage space 11 in the case body 10. A shelf return air channel 21 and a shelf return air inlet 22 communicated with the shelf return air channel 21 are formed in the shelf 20, the shelf return air channel 21 is communicated with the back plate return air inlet 192, and the shelf return air inlet 22 is communicated with the storage space 11. In use, the airflow in the storage space 11 is recovered through the shelf return air inlet 22, and the recovered airflow is sent to the back plate return air inlet 192 through the shelf return air channel 21 and enters the return air duct 13.

More preferably, in the technical scheme of this embodiment, a shelf air outlet channel 23 and a shelf air outlet 24 communicated with the shelf air outlet channel 23 are formed on the shelf 20, the shelf air outlet channel 23 is communicated with the back plate air outlet 191, and the shelf air outlet 24 is communicated with the storage space 11. When the air-out device is used, low-temperature airflow of the air-out duct 12 firstly enters the rack air-out channel 23 through the back plate air outlet 191 and then is conveyed to the corresponding storage space 11 through the rack air outlet 24.

As an alternative embodiment, as shown in fig. 2 and 6, a shelf return air inlet 22 is provided on the upper surface of the shelf 20, and the shelf return air inlet 22 returns air in the storage space 11 above the shelf 20; the shelf air outlet 24 is located on the lower surface of the shelf 20, and the shelf air outlet 24 is used for exhausting air in the storage space 11 below the shelf 20. Therefore, the cold air is more suitable for the separation of the cold air, the cold air flow is blown out from the shelf air outlet 24 of the shelf 20 above the storage space 11, and the air flow is recovered from the shelf air return opening 22 of the shelf 20 below the storage space 11.

As a more preferable embodiment, as shown in fig. 2, the shelf return air inlet 22 is located at the opening of the storage space 11, and the shelf outlet 24 is also located at the opening of the storage space 11. Therefore, a cold air barrier can be formed at the opening of the storage space 11 by matching the rack air outlet 24 and the rack air return opening 22, and the temperature in the storage space 11 is guaranteed. More preferably, at an opening of the storage space 11, the shelf return air inlets 22 and the shelf outlet air outlets 24 are oppositely disposed, so as to better form a cold air barrier.

As other alternative embodiments, the rack return air inlet 22 may be located on the lower surface of the rack 20, and the rack return air inlet 22 returns air in the storage space 11 below the rack 20; the shelf air outlet 24 is located on the upper surface of the shelf 20, and the shelf air outlet 24 is used for exhausting air in the storage space 11 above the shelf 20. This embodiment has a flow direction of the air flow opposite to that of the above embodiment.

More preferably, in the technical solution of this embodiment, a rack air inlet 231 communicated with the rack air outlet channel 23 is further formed on the rack 20, the rack air inlet 231 is communicated with the air outlet duct 12, and an air duct blocking piece 25 is disposed on the rack air inlet 231. The air duct blocking piece 25 has a closed state in which the air duct blocking piece 25 blocks the rack air inlet 231 and an open state in which the air duct blocking piece 25 opens the rack air inlet 231. The air duct baffle 25 is controlled to be in a closed state or an open state, so that the supply of cold air to each layer of storage space 11 can be controlled, and the effect of controlling different temperatures of each layer of storage space 11 is achieved. Preferably, as shown in fig. 2, in the solution of the present embodiment, in the open state, the duct blocking sheet 25 is disposed obliquely with respect to the air outlet duct 12 to guide the airflow in the air outlet duct 12 to the rack air inlet 231.

Alternatively, the duct flap 25 is mounted to the rack inlet 231 via a driving member 26, and the driving member 26 drives the duct flap 25 to the closed state or the open state. In the solution of the present embodiment, the driving member 26 is a spring hinge. When the air duct baffle plate 25 is used, the air duct baffle plate 25 connected through the spring hinge keeps a normally closed state under the action of the spring hinge, and if the air duct baffle plate 25 needs to be driven to the closed state, only the force of the spring hinge needs to be overcome.

As another alternative, the driving member 26 may also be an electrically controlled switch for the closed state or the open state of the air passage flap 25.

More preferably, as shown in fig. 6, a first wind screen 27 and a first driving mechanism 28 for driving the first wind screen 27 to move are disposed on the shelf air return opening 22, and the first driving mechanism 28 drives the first wind screen 27 to adjust the size, open or close of the shelf air return opening 22. In use, the first windshield grille 27 is driven by the first driving mechanism 28 to move, so that the size, opening or closing of the shelf return air inlet 22 can be adjusted, the flow of return air is adjusted, and the temperature of each storage space 11 is controlled by adjusting the flow of the return air. Preferably, the shelf air outlet 24 is provided with a second stop style grating and a second driving mechanism for driving the second stop style grating to move, and the second driving mechanism drives the second stop style grating to adjust the size, open or close of the shelf air outlet 24. When the air-conditioning rack is used, the second driving mechanism drives the second baffle style grating to move, and the size, the opening or the closing of the rack air outlet 24 can be adjusted, so that the flow of return air is adjusted, and the temperature of each storage space 11 is controlled by adjusting the outlet air. Preferably, in the technical solution of the present embodiment, the first driving mechanism 28 or the second driving mechanism includes a motor and a rack and pinion assembly, and the motor drives the first wind-shielding grille 27 or the second wind-shielding grille to move through the rack and pinion assembly.

More preferably, a temperature sensor may be provided at the first wind screen 27 or the second wind screen style so as to adjust the return air and the outlet air.

Preferably, each layer of shelf 20 is provided with an independent temperature sensor, the temperature of each area can be displayed on the control panel, and when the temperature of the shelf 20 is higher than a preset range value, the system controls the first driving mechanism 28 or the second driving mechanism to operate and adjust the position relation between the wind screen and the wind inlet on the shelf, so that the wind inlet is enlarged, the wind volume is enlarged, and the adjustment temperature is reduced; when the temperature of the shelf is lower than the preset range value, the system controls the first driving mechanism 28 or the second driving mechanism to operate and adjust the position relation between the wind screen and the air inlet on the shelf, so that the air inlet and the air quantity are reduced, and the temperature is adjusted to rise.

As shown in fig. 2, in the solution of the present embodiment, since the shelf 20 is not disposed on the upper side of the box 10, the refrigeration air inlet 14 communicated with the uppermost layer of the multi-layer storage space 11 is disposed on the upper side of the box 10, the refrigeration air inlet 14 is communicated with the air outlet duct 12, and the uppermost layer of the multi-layer storage space 11 is refrigerated through the refrigeration air inlet 14.

In the technical solution of this embodiment, as shown in fig. 2 and fig. 3, a sealed air outlet 15 is further disposed on the upper side of the box 10, a sealed air return opening 16 is further disposed on the lower side of the box 10, and the sealed air outlet 15 and the sealed air return opening 16 are located outside the multilayer storage space 11 on the box 10. By providing the sealed air outlet 15 and the sealed air return opening 16 outside the multi-layered storage space 11, an air flow-tight barrier can be formed, thereby helping to avoid interference of the outside temperature with the storage space 11.

Optionally, as shown in fig. 2, the showcase further includes a fan 17 and an evaporator 18 disposed in the case 10, and the fan 17 and the evaporator 18 are disposed between the return air duct 13 and the outlet air duct 12. When the air conditioner is used, the fan 17 enables air flow to be output from the air outlet duct 12 and then flow back from the air return duct 13, and the temperature of the air flow is reduced through the evaporator 18 in the process, so that the temperature of the storage space 11 is reduced circularly.

As can be seen from the above, the technical solution of the present invention achieves the following technical effects:

1. each storage space 11 is provided with an independent air port, so that each layer of storage space 11 forms an independent space, and the problems that an air curtain in the cabinet is damaged and the temperature in the cabinet is lost when goods are taken are solved;

2. the multilayer shelf can be independently controlled in temperature, so that a machine with multiple temperature zones is realized.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes may be made to the embodiment of the present invention by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A display case, comprising:

the air-conditioning cabinet comprises a cabinet body (10), wherein a plurality of layers of storage spaces (11) are formed on the cabinet body (10), an air outlet duct (12) is formed in the middle of the cabinet body (10), the cabinet body (10) is located on two sides of the air outlet duct (12) and is provided with a return air duct (13), the air outlet duct (12) is communicated with each layer of the plurality of layers of storage spaces (11), and the return air duct (13) is communicated with each layer of the plurality of layers of storage spaces (11) respectively.

2. The showcase of claim 1, wherein a discharge air duct chamber (121) and a return air duct chamber (131) are formed at a rear side of the case body, the upper covers of the air outlet duct cavity (121) and the air return duct cavity (131) are provided with back plates (19), the air outlet duct (12) is formed between the back plate (19) and the air outlet duct cavity (121), the return air duct (13) is formed between the back plate (19) and the return air duct chamber (131), a back plate air outlet (191) communicated with the air outlet duct (12) is arranged on the back plate (19), the back plate air outlet (191) is used for discharging air to each layer of the multilayer storage space (11), a back plate air return opening (192) communicated with the air return duct (13) is arranged on the back plate (19), the back plate air return opening (192) is used for returning air from each layer of the multilayer storage space (11).

3. The display cabinet according to claim 2, further comprising a plurality of shelves (20), wherein the shelves (20) are respectively mounted on the back plate (19) to divide the interior of the box body (10) into the plurality of storage spaces (11), a shelf return air passage (21) and a shelf return air opening (22) communicated with the shelf return air passage (21) are formed in each shelf (20), the shelf return air passage (21) is communicated with the back plate return air opening (192), and the shelf return air opening (22) is communicated with the storage spaces (11).

4. The display cabinet of claim 3, wherein a shelf air outlet channel (23) and a shelf air outlet (24) communicated with the shelf air outlet channel (23) are formed on the shelf (20), the shelf air outlet channel (23) is communicated with the back plate air outlet (191), and the shelf air outlet (24) is communicated with the storage space (11).

5. The display case of claim 4, wherein the shelf return air opening (22) is located at an upper surface of the shelf (20), the shelf return air opening (22) returning air in the storage space (11) above the shelf (20); the shelf air outlet (24) is positioned on the lower surface of the shelf (20), and the shelf air outlet (24) is used for exhausting air in the storage space (11) below the shelf (20);

or the rack return air inlet (22) is positioned on the lower surface of the rack (20), and the rack return air inlet (22) returns air in the storage space (11) below the rack (20); the shelf air outlet (24) is located on the upper surface of the shelf (20), and the shelf air outlet (24) is located in the storage space (11) above the shelf (20) for air outlet.

6. Display case according to claim 5, characterized in that the shelf return air opening (22) is located at the opening of the storage space (11) and/or the shelf outlet air opening (24) is located at the opening of the storage space (11).

7. Showcase according to claim 6, wherein at an opening of one of said storage spaces (11), said shelf return air opening (22) and said shelf outlet air opening (24) are arranged opposite.

8. The showcase of claim 4, wherein the shelves include a first shelf and a second shelf which are arranged side by side, a first return air communication port which communicates with the back plate return air inlet (192) is formed at a right side of a back portion of the first shelf, and a second return air communication port which communicates with the back plate return air inlet (192) is formed at a left side of a back portion of the second shelf;

and a first air outlet communicating opening communicated with the back plate air return opening (192) is formed in the left side of the back of the first shelf, and a second air outlet communicating opening communicated with the back plate air return opening (192) is formed in the right side of the back of the second shelf.

9. The showcase according to claim 1, wherein a refrigerating air outlet (14) communicating with an uppermost layer of the multi-layered storage space (11) is provided at an upper side of the case (10), and the refrigerating air outlet (14) communicates with the outlet air duct (12).

10. The showcase according to claim 1, wherein a sealed air outlet (15) is further provided at an upper side of the case body (10), and a sealed air return opening (16) is further provided at a lower side of the case body (10), and the sealed air outlet (15) and the sealed air return opening (16) are located outside the multi-layered storage space (11) on the case body (10).