A fresh food near ice temperature display cabinet

Abstract

The utility model belongs to the field of food display cabinets, and provides a near-ice temperature display cabinet for fresh food, including a cabinet body, a refrigeration device, a spray device, and a control device; an opening is provided on the front side of the cabinet body, and a door body and a display room are provided at the opening, the display room is located inside the cabinet body and forms a circulating air duct with the top wall and the rear side wall of the cabinet body; an air inlet is provided on the top wall of the display room, an air outlet is provided on the rear side wall, and a low-temperature heating component is provided on the bottom wall; a guide fan is provided in the circulating air duct, and the refrigeration device is connected to the circulating air duct; the spray device is provided inside the cabinet body, including a condensed water collection box, a water pump, and a spray head, and the spray head is provided inside the display room; the control device is connected to the refrigeration device, the spray device, the guide fan, the low-temperature heating component, and the temperature sensor. The near-ice temperature display cabinet for fresh food provided by the utility model fills the gap in the near-ice temperature preservation and display equipment for fresh food, and enriches the experience of buying food while ensuring the quality of food and extending the shelf life.

Description

Technical Field

[0001] The utility model belongs to the field of fresh food display cabinets, in particular to a near-ice-temperature display cabinet for fresh food. Background Art

[0002] The true freezing point of food tissue is generally below 0℃. The temperature range below 0℃ and above the biological freezing point is usually called the "ice temperature zone", and the technology of storing food near the biological freezing point (within 0.5℃ above the biological freezing point) is called near-ice temperature storage technology. Studies have found that near-ice temperature technology can significantly improve the storage quality of food, thereby extending the shelf life of food and expanding the sales radius of food. Near-ice temperature storage technology is considered to be the third generation of fresh-keeping technology after refrigeration and gas conditioning.

[0003] At present, display cabinets for fresh food (such as fresh fruits and vegetables, cold meat, fresh eggs, etc.) mostly use refrigeration technology to preserve and display food. However, due to the relatively high refrigeration temperature (generally 0℃~10℃), the quality of fresh food often deteriorates rapidly at this temperature and cannot achieve a good preservation and display effect. Therefore, existing food display cabinets cannot have a good preservation and storage effect on the displayed fresh food, which seriously affects the shelf life and sales quality of the food.

[0004] Therefore, it is necessary to design a fresh food near-ice temperature display cabinet that can ensure the storage quality of fresh food, extend its shelf life, and enhance consumers' shopping experience. Summary of the invention

[0005] In order to solve the above technical problems, the utility model proposes a near-freezing temperature display cabinet for fresh food, which can accurately control the fluctuation range of storage temperature and avoid excessive fluctuation of the ambient temperature in the display cabinet, thereby preventing food from being frozen or spoiled, ensuring the storage quality of food, controlling the storability of food, extending the shelf life of food, and expanding the sales radius of food. At the same time, it improves the display effect of food and enriches people's shopping experience.

[0006] The technical solution of the utility model is:

[0007] The utility model provides a fresh food near-ice temperature display cabinet, comprising a cabinet body, a refrigeration device, a spray device, and a control device;

[0008] An opening is provided on the front side of the cabinet, and a door body and a display room are provided at the opening. The display room is located inside the cabinet and forms a circulating air duct with the top wall and rear side wall of the cabinet. The gap between the rear side wall of the display room and the rear side wall of the cabinet, and the gap between the top wall of the display room and the top wall of the cabinet together constitute a circulating air duct, and constitute an embedded cold air circulation channel with the internal space of the display room, so as to maintain the temperature in the display room in the near-freezing temperature range of the food.

[0009] The top wall of the display room is provided with an air inlet, the rear side wall is provided with an air outlet, and the bottom wall is provided with a low-temperature heating component; the low-temperature heating component is activated when the temperature in the display room is too low, or when the temperature in the display room changes too much, to avoid frostbite of food caused by low temperature, and cooperates with the refrigeration device to realize two-way temperature control, thereby improving the temperature stability in the display room, avoiding excessive temperature fluctuations, and at the same time, improving the accuracy of temperature control to achieve a near-freezing temperature environment in the display room.

[0010] At least one guide fan is provided in the circulating air duct, and temperature sensors are provided on the inner wall of the exhibition room and in the circulating air duct; the guide fan promotes the circulation of cold air between the exhibition room and the circulating air duct, thereby improving the cooling efficiency and the uniformity of the temperature in the exhibition room.

[0011] The refrigeration device is connected to the circulation air duct;

[0012] The spray device is arranged inside the cabinet, and includes a condensed water collection box, a water pump, and a spray head. The condensed water collection box is arranged on the front side wall of the cabinet and extends into the cabinet. The condensed water collection box is located below the display room and is connected thereto. The spray head is arranged inside the display room. Both ends of the water pump are respectively connected to the condensed water collection box and the spray head through pipes. The condensed water collection box collects condensed water in the display room for recycling, and is pumped to the spray head through the water pump and the connected pipe, and is sprayed into the display room through the spray head in the display room. On the one hand, it has the effect of moisturizing and hydrating the food and improving the visual effect of the display. On the other hand, it has the effect of temperature control and improves the uniformity of the temperature in the display room.

[0013] The control device is connected to the refrigeration device, the spray device, the guide fan, the low-temperature heating component, and the temperature sensor.

[0014] Preferably, the refrigeration device includes a compressor, a condenser, an expansion valve, and an evaporator connected in sequence, which are connected in sequence through pipes to form a closed refrigeration system. The evaporator is located in the circulating air duct, the compressor is connected to the control device, and the evaporator cools the circulating air in the circulating air duct to achieve the effect of cooling and controlling the temperature.

[0015] Preferably, a plurality of racks arranged at intervals are provided in the exhibition room, and the racks are connected to the rear side walls of the exhibition room and enclose a plurality of exhibition areas together with the side walls of the exhibition room.

[0016] Preferably, the plurality of display areas are each provided with the air outlet, the sprinkler head, and the temperature sensor.

[0017] Preferably, the storage rack is provided with a plurality of through holes for connecting adjacent display areas, so as to promote the flow of cold air between the display areas, thereby promoting the circulation of cold air between the display room and the circulating air duct, thereby improving the uniformity and stability of the temperature.

[0018] Preferably, the through hole may be a circular hole or a through hole of other shapes, or a strip-shaped groove.

[0019] Preferably, the bottom wall of the display room is inclined at a certain angle to the horizontal direction, and a drain outlet connected to the condensate collection box is provided on the lower side of the bottom wall of the display room, so that the condensate water automatically flows to the lower drain outlet for collection, recycling and reuse.

[0020] Preferably, the drain outlet is an arc-shaped groove, which serves to guide and collect condensed water.

[0021] Preferably, the air inlet and the air outlet are both provided with a one-way air guide valve, and the guide fan is provided at the one-way air guide valve. The one-way air guide valve ensures that cold air flows into the display room, and hot air flows out of the display room and enters the circulating air duct for cooling, thereby forming a cold air circulation channel. The guide fan plays a role in guiding and promoting the circulation, thereby improving the overall circulation refrigeration efficiency.

[0022] Preferably, a plurality of annular display lights are provided on the inner wall at the rear side of the display room, and a reflective plate is attached thereto; an ultraviolet sterilization lamp is provided inside the display room; both the annular display lights and the ultraviolet sterilization lamp are connected to the control device; the annular display lights can enhance the brightness of the displayed food and increase consumers' desire to visit and purchase; the ultraviolet sterilization lamp can regularly irradiate and disinfect the food, thereby reducing the contamination of spoilage bacteria caused by opening and closing the door.

[0023] Preferably, the door body is a glass door and is provided with a defogger assembly connected thereto, and the defogger assembly is connected to the control device to prevent the door body glass from fogging up and affecting the display of food.

[0024] Preferably, the display cabinet further comprises a ceiling connected to the cabinet body and a movable base, the ceiling is provided with a lighting assembly connected to the control device, and the cabinet body and the refrigeration device are arranged on the base.

[0025] Compared with the prior art, the utility model has the following advantages and effects:

[0026] (1) The circulating air duct inside the cabinet forms a cold air circulation channel with the interior of the display room, and circulates cold air in the display room, thereby achieving uniform and stable temperature control in the display room, maintaining the temperature within the near-freezing temperature range of the food, ensuring the storage quality of the food, controlling the storability of the food, and extending the shelf life of the food;

[0027] (2) Use low-temperature heating components in conjunction with refrigeration devices to achieve two-way temperature control, improve the accuracy and sensitivity of temperature control, and thus accurately control the temperature fluctuation range in the display room and avoid excessive fluctuations in the ambient temperature in the display cabinet, thereby preventing food from being frozen or spoiled;

[0028] (3) Use a spray device to recycle the condensed water in the display room and spray the food to moisturize and replenish water, thereby achieving the effect of food preservation and improving the display effect of food. At the same time, the flowing condensed water sprayed can maintain a uniform and stable temperature in the display room and promote the circulation of cold air;

[0029] (4) The use of ultraviolet germicidal lamps can reduce the contamination of food in the display room by spoilage bacteria caused by opening and closing doors;

[0030] (5) Use ring display lights and lighting components to enhance the display of food, thereby increasing consumers’ purchasing desire and improving their shopping experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 This is a front view of the near-ice temperature display cabinet for fresh food in Example 1 of the utility model;

[0032] Figure 2 It is a side sectional view of the near-ice-temperature display cabinet for fresh food in Embodiment 1 of the utility model;

[0033] Figure 3 This is a temperature fluctuation range diagram of the display room in the near-freezing temperature display cabinet for fresh food in Example 1 of the utility model;

[0034] Figure 4 This is a schematic diagram of the connection of the control device of the near-ice temperature display cabinet for fresh food in Example 1 of the utility model;

[0035] Figure 5 It is a side sectional view of the near-ice-temperature display cabinet for fresh food in Example 2 of the utility model.

[0036] Figure markings: 1-cabinet, 11-door, 111-defog assembly, 12-display room, 121-air inlet, 122-air outlet, 123-low-temperature heating assembly, 124-drain outlet, 13-circulating air duct, 131-guide fan, 14-shelf, 141-through hole, 2-refrigeration device, 21-compressor, 22-condenser, 23-expansion valve, 24-evaporator, 3-spraying device, 31-condensate collection box, 32-water pump, 33-spraying head, 4-temperature sensor, 5-one-way air guide valve, 6-ring display light, 7-ultraviolet sterilization lamp, 8-ceiling, 81-lighting assembly, 9-base. DETAILED DESCRIPTION

[0037] In order to enable those skilled in the art to better understand the present invention, the present invention is now further described in conjunction with specific implementation methods.

[0038] Embodiment 1:

[0039] like Figure 1~Figure 4 As shown, the utility model provides a near-ice temperature display cabinet for fresh food, including a cabinet body 1, a refrigeration device 2, a spray device 3, a control device, a ceiling 8, and a base 9; wherein the control device is electrically connected to the refrigeration device, the spray device, the guide fan, the low-temperature heating component, and the temperature sensor, and is used to control the normal operation of the above components. It is a conventional controller, and in view of the fact that it is a mature prior art, it will not be described in detail here.

[0040] The cabinet 1 has an opening at the front side, and a door 11 and a display room 12 are provided at the opening. The door 11 is a glass door with a handle and is provided with a defogger assembly 111, and the defogger assembly 111 is connected to the control device; the display room 12 is located inside the cabinet 1, and the gap between the rear side wall of the display room 12 and the rear side wall of the cabinet 1, and the gap between the top wall of the display room 12 and the top wall of the cabinet 1 together form a circulation duct 13; three spaced-apart shelves 14 are provided in the display room 12, and the shelf 1 4 is connected to the rear side wall of the exhibition room 12, and is surrounded by the side wall of the exhibition room 12 to form three exhibition areas, each of which is provided with two air outlets 122, a sprinkler head 33, and a temperature sensor 4; the top wall of the exhibition room 12 is provided with two air inlets 121, and the rear side wall is provided with a plurality of air outlets 122. The internal space of the exhibition room 12 is connected to the circulation duct 13 through the air inlet 121 and the air outlet 122 to form an embedded cold air circulation channel. The specific cold air circulation flow trajectory is shown in Figure 2 As shown by the middle arrow, the temperature in the display room 12 is maintained within the near-freezing temperature range of the food.

[0041] One-way air guide valves 5 are provided at the air inlet 121 and the air outlet 122, and guide fans 131 are provided at the one-way air guide valves 5. The one-way air guide valves 5 ensure that cold air flows into the display room 12 in one direction, and hot air flows out of the display room 12 and enters the circulating air duct 13 for cooling, forming a cold air circulation channel. The guide fan 131 plays a role in guiding and promoting the circulation, thereby improving the overall circulation refrigeration efficiency.

[0042] like Figure 2As shown, five guide fans 131 are provided in the circulating air duct 13, two of which are provided at the air inlet 121, and one guide fan 131 is provided at the air outlet 122 at the bottom of the display room 12, to guide the hot air flowing out of the display room 12 to the evaporator 24; one is provided in the circulating air duct 13 near the bottom wall of the cabinet 1 to blow the cold air generated by the evaporator 24 upwards; and one is provided at the connection between the top wall and the rear side wall of the cabinet 1 to guide the cold air to the air inlet 121 of the display room 12; thereby promoting the circulation of cold air between the display room 12 and the circulating air duct 13, improving the refrigeration efficiency and the uniformity and stability of the temperature in the display room 12.

[0043] The refrigeration device 2 includes a compressor 21, a condenser 22, an expansion valve 23, and an evaporator 24 which are connected in sequence, and are connected in sequence through pipelines to form a closed refrigeration system. The evaporator 24 is located in the circulating air duct 13, and the compressor 21 is connected to the control device. The evaporator 24 cools the circulating air in the circulating air duct 13 to achieve the effect of cooling and controlling the temperature. A low-temperature heating component 123 is provided on the bottom wall of the display room 12; the low-temperature heating component 123 is started when the temperature in the display room 12 is too low, or when the temperature in the display room 12 changes too much (such as the temperature fluctuation exceeds the set temperature ±0.3°C), to avoid freezing of food caused by low temperature, and cooperates with the refrigeration device 2 to realize two-way temperature control, thereby improving the stability of the temperature in the display room 12 and avoiding excessive temperature fluctuations. At the same time, the accuracy and sensitivity of temperature control are improved to achieve precise temperature control.

[0044] The spray device 3 is arranged inside the cabinet 1, and includes a condensed water collection box 31, a water pump 32, and a spray head 33. The condensed water collection box 31 is embedded in the cabinet 1 and can be pulled out of the cabinet 1 by a handle to dump the excess condensed water collected inside. The condensed water collection box 31 is located below the display room 12 and is connected thereto. The spray head 33 is arranged inside the display room 12. Both ends of the water pump 32 are respectively connected to the condensed water collection box 31 and the spray head 33 through a spray pipe; the condensed water collection box 31 collects the condensed water in the display room 12 for recycling, and pumps it to the spray head 33 through the water pump 32 and the connected spray pipe, and then sprays it into the display room 12 through the spray head 33 in the display room 12. On the one hand, it plays a role in moisturizing and replenishing water for food and improving the visual effect of display. On the other hand, since the sprayed condensed water is flowing water, it can play a good temperature control role and improve the uniformity and stability of the temperature in the display room 12.

[0045] Temperature sensors 4 are provided on the inner wall of the exhibition room 12 and the circulating air duct 13 to monitor the temperature in the exhibition room 12 and the circulating air duct 13 in real time, and feed the data back to the control device in real time. The control device controls the refrigeration device 2, the guide fan 131, the low-temperature heating component 123, and the spray device 3 to operate to maintain the temperature fluctuation range in the exhibition room 12 within ±0.3°C. Figure 3 shown.

[0046] The bottom wall of the display room 12 is inclined at a certain angle to the horizontal direction, with the front side being low and the rear side being high. A funnel-shaped drain outlet 124 is provided on the front side of the bottom wall and connected to the condensate collection box 31, so that the condensate can automatically flow to the lower drain outlet 124 for collection, recycling and reuse.

[0047] A plurality of annular display lights 6 are provided on the inner wall at the rear side of the display room 12, and a reflector is attached thereto. A lighting assembly 81 is provided on the ceiling 8. An ultraviolet sterilization lamp 7 is provided inside the display room 12. The annular display lights 6, the lighting assembly 81, and the ultraviolet sterilization lamp 7 are all connected to the control device. The annular display lights 6 and the lighting assembly 81 can enhance the brightness of the displayed food and increase consumers' desire to visit and purchase. The ultraviolet sterilization lamp 7 can regularly irradiate and disinfect the food, thereby reducing the contamination of spoilage bacteria caused by opening and closing the door 11.

[0048] The compressor 21 and the condenser 22 of the refrigeration device 2 are arranged outside the cabinet 1 and fixed on the base 9. The cabinet 1 is fixed on the base 9, and the side wall of the cabinet 1 is provided with a heat preservation layer.

[0049] Embodiment 2:

[0050] For Example 2 of the utility model, Figure 5 Note that description of parts that are not different from those in Embodiment 1 will be omitted and will be given the same reference numerals.

[0051] like Figure 5 As shown, the shelf 14 in the fresh food near-freeze temperature display cabinet of the present invention is provided with a plurality of through holes 141 for connecting adjacent display areas. Cold air can flow to the display area below through the through holes 141, thereby increasing the contact area between the cold air and the food and promoting the flow of cold air between the display areas. The specific cold air circulation flow trajectory is as follows: Figure 4 As shown by the middle arrow, the circulation of cold air between the display room 12 and the circulating air duct 13 is enhanced, thereby improving the uniformity and stability of the temperature and maintaining the food stored in a temperature range close to freezing temperature.

[0052] In summary, the near-freezing temperature display cabinet for fresh food provided by the utility model can accurately control the storage temperature fluctuation range and avoid excessive fluctuation of the ambient temperature in the display cabinet, thereby preventing food from being frozen or spoiled, ensuring the storage quality of food, controlling the storability of food, extending the shelf life of food, and expanding the sales radius of food. At the same time, it can enhance the display effect of food and enrich people's shopping experience.

[0053] The above are only preferred embodiments of the present invention, and are not intended to limit the patent scope of the present invention. All equivalent changes and modifications made within the scope of the present invention should still fall within the scope of the present invention.

Claims

1. A fresh food near-ice temperature display cabinet, characterized in that: It comprises a cabinet (1), a refrigeration device (2), a spray device (3), and a control device; The cabinet (1) is provided with an opening at the front side, and a door (11) and a display room (12) are provided at the opening; the display room (12) is located inside the cabinet (1) and forms a circulation air duct (13) with the top wall and rear side wall of the cabinet (1); The top wall of the display room (12) is provided with an air inlet (121), the rear side wall is provided with an air outlet (122), and the bottom wall is provided with a low-temperature heating component (123); At least one air guide fan (131) is provided in the circulating air duct (13), and temperature sensors (4) are provided on the inner wall of the display room (12) and in the circulating air duct (13); The refrigeration device (2) is in communication with the circulating air duct (13); The spray device (3) is arranged inside the cabinet (1), and comprises a condensed water collection box (31), a water pump (32), and a spray head (33); the condensed water collection box (31) is arranged on the front side wall of the cabinet (1) and extends into the cabinet (1); the condensed water collection box (31) is located below the display room (12) and is in communication therewith; the spray head (33) is arranged inside the display room (12); and two ends of the water pump (32) are respectively connected to the condensed water collection box (31) and the spray head (33) through pipes; The control device is connected to the refrigeration device (2), the spray device (3), the air guide fan (131), the low-temperature heating component (123), and the temperature sensor (4).

2. The fresh food near-ice temperature display cabinet according to claim 1, characterized in that: The refrigeration device (2) comprises a compressor (21), a condenser (22), an expansion valve (23), and an evaporator (24) which are connected in sequence; the evaporator (24) is located in the circulating air duct (13); and the compressor (21) is connected to the control device.

3. The fresh food near-ice temperature display cabinet according to claim 1, characterized in that: A plurality of storage racks (14) arranged at intervals are provided in the display room (12); the storage racks (14) are connected to the rear side walls of the display room (12) and enclose a plurality of display areas with the side walls of the display room (12).

4. The fresh food near-ice temperature display cabinet according to claim 3, characterized in that: The display area is provided with the air outlet (122), the spray head (33), and the temperature sensor (4).

5. The fresh food near-ice temperature display cabinet according to claim 3, characterized in that: The storage rack (14) is provided with a plurality of through holes (141) for connecting adjacent display areas.

6. The fresh food near-ice temperature display cabinet according to claim 1, characterized in that: The bottom wall of the display room (12) is inclined at a certain angle to the horizontal direction, and a drainage port (124) connected to the condensed water collection box (31) is provided on the lower side of the bottom wall of the display room (12).

7. The fresh food near-ice temperature display cabinet according to claim 1, characterized in that: A one-way air guide valve (5) is provided at the air inlet (121) and the air outlet (122), and the air guide fan (131) is provided at the one-way air guide valve (5).

8. The fresh food near-ice temperature display cabinet according to claim 1, characterized in that: The inner wall at the rear side of the display room (12) is provided with a plurality of annular display lights (6) and a reflective plate, and an ultraviolet sterilization lamp (7) is provided inside the display room (12), and the annular display lights (6) and the ultraviolet sterilization lamp (7) are both connected to the control device.

9. The fresh food near-ice temperature display cabinet according to claim 1, characterized in that: The door body (11) is a glass door and is provided with a demisting assembly (111) connected thereto, and the demisting assembly (111) is connected to the control device.

10. The fresh food near-ice temperature display cabinet according to claim 1, characterized in that: It also comprises a ceiling (8) connected to the cabinet (1) and a movable base (9), wherein the ceiling (8) is provided with a lighting assembly (81) connected to the control device, and the cabinet (1) and the refrigeration device (2) are arranged on the base (9).

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