Display Cabinet

Abstract

The present invention provides a display cabinet. The display cabinet includes a box body, and multiple layers of storage space are formed on the box body. An air outlet duct and an air return duct are formed on the box body. The air outlet duct is connected to each layer of the multiple layers of storage space, and the air return duct is also connected to each layer of the multiple layers of storage space. By applying the technical solution of the present invention, each layer of storage space is independently connected to the air outlet duct and the air return duct, so that the air outlet and air return of each layer of storage space are relatively independent, and the temperature of each layer of storage space is not easily affected by the temperature of other layers, which ensures that the temperature of each layer of storage space is maintained in a balanced manner.

Description

Technical Field

[0001] The invention relates to the technical field of refrigeration equipment, and in particular to a display cabinet. Background Art

[0002] With the development of society and the improvement of people's economic level, refrigerated display cabinets with display effects are increasingly used. The refrigeration cycle system of existing display cabinets generally includes a compressor, an evaporator and a condenser which are connected in sequence through pipelines to form a loop cycle. Personnel can maintain a constant temperature in the cabinet by adjusting the set temperature.

[0003] The existing technology usually uses a method of outputting air curtains from the top layer to returning air to the bottom layer. During this process, the temperature of the shelf air outlet is low, while the temperature of the shelf return air outlet is high. In addition, the air curtain will be damaged when taking goods, affecting the temperature inside the cabinet. This cannot effectively meet the user's usage needs and reduces the user experience. Summary of the invention

[0004] The embodiment of the present invention provides a display cabinet to solve the technical problem that the temperature of each display layer of the display cabinet in the prior art is easily affected by the return air and is uneven.

[0005] An embodiment of the present invention provides a display cabinet, including: a box body, a multi-layer storage space formed on the box body, an air outlet duct and an air return duct formed on the box body, the air outlet duct is connected to each layer of the multi-layer storage space respectively, and the air return duct is also connected to each layer of the multi-layer storage space respectively.

[0006] In one embodiment, the display cabinet further includes a plurality of shelves, which are respectively arranged on the box body to separate multiple layers of storage space within the box body, and a shelf return air channel and a shelf return air outlet connected to the shelf return air channel are formed on the shelves, the shelf return air channel is connected to the return air duct, and the shelf return air outlet is connected to the storage space.

[0007] In one embodiment, a shelf air outlet channel and a shelf air outlet connected to the shelf air outlet channel are formed on the shelf, the shelf air outlet channel is connected to the air outlet duct, and the shelf air outlet is connected to the storage space.

[0008] In one embodiment, the shelf return air inlet is located on the upper surface of the shelf, and the shelf return air inlet returns air to the storage space above the shelf; the shelf air outlet is located on the lower surface of the shelf, and the shelf air outlet discharges air to the storage space below the shelf; or, the shelf return air inlet is located on the lower surface of the shelf, and the shelf return air inlet returns air to the storage space below the shelf; the shelf air outlet is located on the upper surface of the shelf, and the shelf air outlet discharges air to the storage space above the shelf.

[0009] In one embodiment, the shelf air return vent is located at the opening of the storage space, and / or the shelf air outlet is located at the opening of the storage space.

[0010] In one embodiment, at an opening of a storage space, the shelf air return vent and the shelf air outlet are arranged opposite to each other.

[0011] In one embodiment, a shelf air inlet connected to the shelf air outlet channel is also formed on the shelf, the shelf air inlet is connected to the air outlet duct, and an air duct baffle is provided on the shelf air inlet;

[0012] The air duct baffle has a closed state and an open state. In the closed state, the air duct baffle blocks the air inlet of the shelf. In the open state, the air duct baffle opens the air inlet of the shelf.

[0013] In one embodiment, in the open state, the air duct baffle is arranged obliquely relative to the air outlet duct to guide the air flow in the air outlet duct to the shelf air inlet.

[0014] In one embodiment, the air duct baffle is installed on the air inlet of the shelf through a driving component, and the driving component drives the air duct baffle to a closed state or an open state.

[0015] In one embodiment, the drive member is a spring hinge.

[0016] In one embodiment, a first wind shield grille and a first driving mechanism for driving the movement of the first wind shield grille are provided on the shelf return air outlet, and the first driving mechanism drives the first wind shield grille to adjust the size, opening or closing of the shelf return air outlet; and / or, a second wind shield grille and a second driving mechanism for driving the movement of the second wind shield grille are provided on the shelf air outlet, and the second driving mechanism drives the second wind shield grille to adjust the size, opening or closing of the shelf air outlet.

[0017] In one embodiment, a cooling air vent connected to the uppermost layer of the multi-layer storage space is provided on the upper side of the box body, and the cooling air vent is connected to the air outlet duct.

[0018] In one embodiment, a sealed air outlet is provided on the upper side of the box body, and a sealed air return outlet is provided on the lower side of the box body. The sealed air outlet and the sealed air return outlet are located outside the multi-layer storage space on the box body.

[0019] In one embodiment, the display cabinet further includes a fan and an evaporator disposed in the cabinet, and the fan and the evaporator are disposed between the return air duct and the outlet air duct.

[0020] In the above embodiment, each layer of storage space is independently connected to an outlet duct and a return duct, so that the outlet and return of the storage space on each layer are relatively independent, and the temperature of each layer of storage space is not easily affected by the temperature of other layers, thereby ensuring that the temperature of each layer of storage space is balanced. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the accompanying drawings:

[0022] Figure 1 is a front structural schematic diagram of an embodiment of a display cabinet according to the present invention;

[0023] Figure 2 yes Figure 1 A schematic diagram of the cross-sectional structure of the display cabinet in the AA direction;

[0024] Figure 3 yes Figure 1 A schematic diagram of the cross-sectional structure of the display cabinet in the BB direction;

[0025] Figure 4 yes Figure 1 A schematic diagram of the three-dimensional structure of the shelf of the display cabinet and a schematic diagram of its exploded structure. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the embodiments and the accompanying drawings. Here, the illustrative embodiments of the present invention and their descriptions are used to explain the present invention, but are not intended to limit the present invention.

[0027] It should be noted that in Figure 2 and Figure 3 In the figure, the line with an arrow indicates the direction of air flow.

[0028] Figure 1 and Figure 2 An embodiment of a display cabinet of the present invention is shown, which includes a box body 10, on which a multi-layer storage space 11 is formed, and an air outlet duct 12 and an air return duct 13 are formed on the box body 10. The air outlet duct 12 is connected to each layer of the multi-layer storage space 11, and the air return duct 13 is also connected to each layer of the multi-layer storage space 11.

[0029] By applying the technical solution of the present invention, each layer of the storage space 11 is independently connected to the air outlet duct 12 and the air return duct 13, so that the air outlet and air return of each layer of the storage space 11 are relatively independent, and the temperature of each layer of the storage space 11 is not easily affected by the temperature of other layers, thereby ensuring that the temperature of each layer of the storage space 11 is maintained balanced.

[0030] like Figure 2As shown, in the technical solution of this embodiment, the display cabinet further includes a plurality of shelves 20, which are respectively arranged on the box body 10 to separate multiple layers of storage space 11 in the box body 10. A shelf return air channel 21 and a shelf return air port 22 connected to the shelf return air channel 21 are formed on the shelf 20, the shelf return air channel 21 is connected to the return air duct 13, and the shelf return air port 22 is connected to the storage space 11. When in use, the airflow in the storage space 11 is recovered through the shelf return air port 22, and the recovered airflow is sent to the return air duct 13 through the shelf return air channel 21.

[0031] More preferably, in the technical solution of this embodiment, a shelf air outlet channel 23 and a shelf air outlet 24 connected to the shelf air outlet channel 23 are formed on the shelf 20, the shelf air outlet channel 23 is connected to the air outlet duct 12, and the shelf air outlet 24 is connected to the storage space 11. When in use, the low-temperature airflow of the air outlet duct 12 first enters the shelf air outlet channel 23, and then is delivered to the corresponding storage space 11 through the shelf air outlet 24.

[0032] like Figure 2 and Figure 4 As shown, as an optional embodiment, the shelf return air vent 22 is located on the upper surface of the shelf 20, and the shelf return air vent 22 returns air to the storage space 11 above the shelf 20; the shelf outlet 24 is located on the lower surface of the shelf 20, and the shelf outlet 24 discharges air to the storage space 11 below the shelf 20. This is more in line with the cold air settling away, the shelf outlet 24 of the shelf 20 above the storage space 11 blows out the cold air flow, and the shelf return air vent 22 of the shelf 20 below the storage space 11 recovers the air flow.

[0033] As a more preferred embodiment, Figure 2 As shown, the shelf return air vent 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. In this way, a cold air barrier can be formed at the opening of the storage space 11 by the cooperation of the shelf outlet 24 and the shelf return air vent 22 to ensure the temperature in the storage space 11. More preferably, at the opening of a storage space 11, the shelf return air vent 22 and the shelf outlet 24 are arranged opposite to each other to form a better cold air barrier.

[0034] As another optional embodiment, the shelf return air vent 22 may be located on the lower surface of the shelf 20, and the shelf return air vent 22 returns air to the storage space 11 below the shelf 20; the shelf outlet 24 may be located on the upper surface of the shelf 20, and the shelf outlet 24 discharges air to the storage space 11 above the shelf 20. Compared with the above embodiment, the airflow direction of this embodiment is opposite.

[0035] More preferably, in the technical solution of the present embodiment, a shelf air inlet 231 connected to the shelf air outlet channel 23 is further formed on the shelf 20, the shelf air inlet 231 is connected to the air outlet duct 12, and an air duct baffle 25 is provided on the shelf air inlet 231. The air duct baffle 25 has a closed state and an open state. In the closed state, the air duct baffle 25 blocks the shelf air inlet 231, and in the open state, the air duct baffle 25 opens the shelf air inlet 231. By controlling the air duct baffle 25 in the closed state or the open state, the cold air supply of each layer of the storage space 11 can be controlled, thereby achieving the effect of different temperature control of each layer of the storage space 11. Preferably, as Figure 2 As shown, in the technical solution of this embodiment, in the open state, the air duct baffle 25 is arranged obliquely relative to the air outlet duct 12 to guide the air flow in the air outlet duct 12 to the shelf air inlet 231.

[0036] Optionally, the air duct baffle 25 is installed on the shelf air inlet 231 through a driving component 26, and the driving component 26 drives the air duct baffle 25 to a closed state or an open state. In the technical solution of this embodiment, the driving component 26 is a spring hinge. When in use, the air duct baffle 25 connected by the spring hinge maintains a normally closed state under the action of the spring hinge. If it is necessary to drive the air duct baffle 25 to a closed state, it is only necessary to overcome the force of the spring hinge.

[0037] As another optional implementation, the driving component 26 may also be an electrically controlled switch for placing the air duct baffle 25 in a closed state or an open state.

[0038] More preferably, Figure 4 As shown, the shelf return air outlet 22 is provided with a first wind shield grille 27 and a first driving mechanism 28 for driving the first wind shield grille 27 to move, and the first driving mechanism 28 drives the first wind shield grille 27 to adjust the size, opening or closing of the shelf return air outlet 22. When in use, the first driving mechanism 28 drives the first wind shield grille 27 to move, so that the size, opening or closing of the shelf return air outlet 22 can be adjusted, thereby adjusting the flow rate of return air, and controlling the temperature of each storage space 11 by adjusting the return air. Preferably, the shelf outlet 24 is provided with a second wind shield grille and a second driving mechanism for driving the second wind shield grille to move, and the second driving mechanism drives the second wind shield grille to adjust the size, opening or closing of the shelf outlet 24. When in use, the second driving mechanism drives the second wind shield grille to move, so that the size, opening or closing of the shelf outlet 24 can be adjusted, thereby adjusting the flow rate of return air, and controlling the temperature of each storage space 11 by adjusting the outlet air. Preferably, in the technical solution of this 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 shield grille 27 or the second wind shield grille to move through the rack and pinion assembly.

[0039] More preferably, a temperature sensor may be provided at the first wind shielding grille 27 or the second wind shielding grille to facilitate the adjustment of return air and outflow air.

[0040] Preferably, each layer of the shelf 20 has a separate temperature sensor, and the temperature of each area will be displayed on the control panel. When the temperature of the shelf 20 is higher than the preset range value, the system controls the first drive mechanism 28 or the second drive mechanism to operate to adjust the positional relationship between the wind shield grille and the air outlet on the shelf, so that the air outlet becomes larger and the air volume becomes larger, and the regulated temperature is lowered; when the temperature of the shelf is lower than the preset range value, the system controls the first drive mechanism 28 or the second drive mechanism to operate to adjust the positional relationship between the wind shield grille and the air outlet on the shelf, so that the air outlet and the air volume are reduced, and the regulated temperature is raised.

[0041] like Figure 2 As shown, in the technical solution of this embodiment, since the shelf 20 will not be set on the upper side of the box body 10, a refrigeration air outlet 14 connected to the top layer of the multi-layer storage space 11 is provided on the upper side of the box body 10, and the refrigeration air outlet 14 is connected to the air outlet duct 12, and the top layer of the multi-layer storage space 11 is cooled by the refrigeration air outlet 14.

[0042] In the technical solution of this embodiment, Figure 2 and Figure 3 As shown, a sealed air outlet 15 is provided on the upper side of the box body 10, and a sealed air return port 16 is provided on the lower side of the box body 10. The sealed air outlet 15 and the sealed air return port 16 are located outside the multi-layer storage space 11 on the box body 10. By providing the sealed air outlet 15 and the sealed air return port 16 outside the multi-layer storage space 11, an airflow sealing barrier can be formed, thereby helping to prevent the external temperature from interfering with the storage space 11.

[0043] Optional, such as Figure 2 As shown, the display cabinet further includes a fan 17 and an evaporator 18 disposed in the box body 10, and the fan 17 and the evaporator 18 are disposed between the return air duct 13 and the outlet air duct 12. When in use, the fan 17 allows the airflow to be output from the outlet air duct 12 and then flow back from the return air duct 13, and in this process, the airflow is cooled by the evaporator 18, thereby cooling the storage space 11 in this cycle.

[0044] It can be seen from the above content that the technical solution of the present invention achieves the following technical effects:

[0045] 1. Each storage space 11 has an independent air outlet, so that each layer of storage space 11 forms an independent space, solving the problem of the wind curtain in the cabinet being damaged and the temperature loss in the cabinet when taking goods;

[0046] 2. The temperature of the multi-layer shelves can be independently controlled, realizing multiple temperature zones in one machine.

[0047] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the embodiments of the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A display cabinet, characterized in that: include: A box body (10), wherein a multi-layer storage space (11) is formed on the box body (10), and an air outlet duct (12) and an air return duct (13) are formed on the box body (10), wherein the air outlet duct (12) is respectively connected to each layer of the multi-layer storage space (11), and the air return duct (13) is also respectively connected to each layer of the multi-layer storage space (11); The display cabinet further comprises a plurality of shelves (20), the plurality of shelves (20) being respectively arranged on the box body (10) to separate the multi-layer storage space (11) in the box body (10), the shelves (20) being formed with a shelf return air channel (21) and a shelf return air outlet (22) connected to the shelf return air channel (21), the shelf return air channel (21) being connected to the return air duct (13), and the shelf return air outlet (22) being connected to the storage space (11); The shelf (20) is formed with a shelf air outlet channel (23) and a shelf air outlet (24) connected to the shelf air outlet channel (23); the shelf air outlet channel (23) is connected to the air outlet duct (12); and the shelf air outlet (24) is connected to the storage space (11); The shelf return air outlet (22) is provided with a first wind shielding grille (27) and a first driving mechanism (28) for driving the first wind shielding grille (27) to move, wherein the first driving mechanism (28) drives the first wind shielding grille (27) to adjust the size of the shelf return air outlet (22) and to open or close the shelf return air outlet (22); And / or, the shelf air outlet (24) is provided with a second wind shielding grille and a second driving mechanism for driving the second wind shielding grille to move, and the second driving mechanism drives the second wind shielding grille to adjust the size, opening or closing of the shelf air outlet (24).

2. The display cabinet according to claim 1, characterized in that: The shelf return air vent (22) is located on the upper surface of the shelf (20), and the shelf return air vent (22) returns air to the storage space (11) above the shelf (20); the shelf outlet (24) is located on the lower surface of the shelf (20), and the shelf outlet (24) discharges air to the storage space (11) below the shelf (20); Alternatively, the shelf air return port (22) is located on the lower surface of the shelf (20), and the shelf air return port (22) returns air to the storage space (11) below the shelf (20); the shelf air outlet (24) is located on the upper surface of the shelf (20), and the shelf air outlet (24) discharges air to the storage space (11) above the shelf (20).

3. The display cabinet according to claim 2, characterized in that: The shelf air return port (22) is located at the opening of the storage space (11), and / or the shelf air outlet (24) is located at the opening of the storage space (11).

4. The display cabinet according to claim 3, characterized in that: At an opening of one of the storage spaces (11), the shelf air return port (22) and the shelf air outlet (24) are arranged opposite to each other.

5. The display cabinet according to claim 1, characterized in that: The shelf (20) is also provided with a shelf air inlet (231) connected to the shelf air outlet channel (23); the shelf air inlet (231) is connected to the air outlet duct (12); and an air duct baffle (25) is provided on the shelf air inlet (231); The air duct baffle (25) has a closed state and an open state. In the closed state, the air duct baffle (25) blocks the shelf air inlet (231). In the open state, the air duct baffle (25) opens the shelf air inlet (231).

6. The display cabinet according to claim 5, characterized in that: In the open state, the air duct baffle (25) is arranged obliquely relative to the air outlet duct (12) to guide the air flow in the air outlet duct (12) to the shelf air inlet (231).

7. The display cabinet according to claim 5, characterized in that: The air duct baffle (25) is installed on the shelf air inlet (231) via a driving component (26), and the driving component (26) drives the air duct baffle (25) to the closed state or the open state.

8. The display cabinet according to claim 7, characterized in that: The driving component (26) is a spring hinge.

9. The display cabinet according to claim 2, characterized in that: A cooling air vent (14) connected to the uppermost layer of the multi-layer storage space (11) is provided on the upper side of the box body (10), and the cooling air vent (14) is connected to the air outlet duct (12).

10. The display cabinet according to claim 9, characterized in that: A sealed air outlet (15) is also provided on the upper side of the box body (10), and a sealed air return outlet (16) is also provided on the lower side of the box body (10); the sealed air outlet (15) and the sealed air return outlet (16) are located on the outer side of the multi-layer storage space (11) on the box body (10).

11. The display case according to claim 1, characterized in that: The display cabinet further comprises a fan (17) and an evaporator (18) arranged in the box body (10); the fan (17) and the evaporator (18) are arranged between the return air duct (13) and the outlet air duct (12).

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