Heat preservation and refrigeration take-out storage cabinet

Abstract

A heat preservation and refrigeration take-out storage cabinet comprises a heat preservation area, an equipment area and a refrigeration area from top to bottom in sequence. The equipment area is divided into two layers, the upper layer is provided with a condenser heat exchange chamber, a compressor and an expansion valve, and the lower layer is provided with an evaporator heat exchange chamber; hot air branch channels are arranged between the heat preservation cabinets; a hot air return channel is arranged on the left side of the thermal cabinet; air is subjected to heat exchange through a small heat exchange chamber of the condenser and then sequentially passes through a hot air distribution channel, a hot air branch channel, a hot air convergence channel and a hot air return channel. A cold air branch channel is arranged between the refrigerated cabinets, and a cold air return channel is arranged on the right side of the refrigerated cabinets. Air is subjected to heat exchange through the small evaporator heat exchange chamber and then sequentially passes through the cold air shunting channel, the cold air branch channel, the cold air converging channel and the cold air return channel. An air return fan b is arranged in the cold air return channel, and an air return fan a is arranged in the hot air return channel. The take-out storage cabinet can meet the requirements of refrigeration and heat preservation at the same time.

Description

Technical Field

[0001] This utility model belongs to the technical field of food storage and distribution equipment, specifically relating to an intelligent takeaway delivery device that combines refrigeration and heat preservation functions. Background Technology

[0002] As people's demand for food delivery continues to increase, users' requirements for food preservation during delivery are also rising. Users' requirements for food delivery have moved beyond basic spill prevention and are now shifting towards more refined storage needs. The increasing mix of hot and cold food in food delivery orders necessitates delivery boxes that can function as both insulated and refrigerated containers. However, in reality, the storage of food after delivery has become a pressing issue. Office workers are unable to leave their workstations due to meetings or work commitments, students are busy with classes or experiments and cannot pick up their meals promptly, and residents face situations such as full parcel racks or communities prohibiting delivery personnel from entering. All of these situations result in food packages being left for extended periods in open environments such as doorways, hallways, and parcel lockers. The lack of effective temperature control in these environments allows hot food to cool down quickly, and cold food to soften or spoil, affecting both the eating experience and potential food safety hazards. Therefore, establishing a safe and reliable food storage solution has become a crucial issue in balancing delivery efficiency and quality assurance.

[0003] Currently, most existing food delivery lockers only have a single temperature control function or achieve cold and hot storage through simple partitioning. This results in problems such as mutual interference between hot and cold zones, high energy consumption, and low space utilization, leading to a decline in food quality due to temperature fluctuations. Traditional food delivery lockers rely on electric heating wires for continuous heating. Chinese patent CN202321745082.3 discloses a freezer, but the refrigeration requires the compressor to run continuously. When the two operate independently, the equipment consumes a lot of energy, the heat released by the condenser cannot be effectively utilized, and the cross-penetration of hot and cold air cannot be effectively prevented, resulting in energy waste. There is an urgent need for a food delivery locker that can completely isolate hot and cold zones, maximize energy utilization, achieve efficient airflow circulation, and reduce equipment energy consumption. This locker should ensure the accuracy of partitioned temperature control while reducing overall energy consumption, in order to meet the dual needs of the food delivery industry for food storage quality and energy saving and cost reduction.

[0004] This invention optimizes the equipment layout and airflow path design, vertically arranging the insulated and refrigerated zones in layers. This ensures complete airflow isolation and efficient circulation between the two zones, effectively avoiding the problems of mutual interference and high energy consumption in traditional designs. By setting an insulation layer between the condenser and evaporator heat exchange chambers, energy loss between the hot and cold equipment is further reduced, ensuring temperature stability in both zones. The closed-loop duct design, driven by a return air fan, utilizes the heating function of the condenser and the cooling function of the evaporator, significantly improving the utilization efficiency of hot and cold air and reducing equipment operating energy consumption. This achieves the dual goals of high efficiency and energy saving while preserving food, effectively alleviating the temperature control challenges in takeout storage. Summary of the Invention

[0005] The basic idea of ​​this utility model is: based on the basic principle of the vapor compression refrigeration cycle, the condenser releases heat to generate heat and the evaporator absorbs heat to generate heat. The heat released by the condenser is used to maintain the temperature of the insulated cabinet, and the evaporator absorbs the heat of the cold storage cabinet to maintain the low temperature of the cold storage area, thereby realizing two uses of one refrigeration system.

[0006] Utilizing the principle of heat release for heating and heat absorption for cooling in a vapor compression refrigeration cycle, the insulation zone and the cold storage zone are arranged vertically in layers. An independent hot and cold air circulation system is set up in the equipment area to control the temperature of the insulation zone and the cold storage zone separately. An insulation layer is installed between the condenser heat exchange chamber and the evaporator heat exchange chamber to ensure complete isolation between the hot and cold areas, avoiding the problem of mutual interference between hot and cold air in traditional designs. Through the design of the circulating air duct, based on the principle that hot air with lower density rises easily and cold air with higher density falls easily, the hot air in the insulation zone and the cold air in the cold storage zone circulate efficiently within their respective areas, significantly improving temperature stability and energy utilization efficiency.

[0007] The technical solution adopted by this utility model is: a heat-insulated and refrigerated takeaway storage cabinet, characterized in that: the takeaway storage cabinet consists of a heat-insulating zone, an equipment zone, and a refrigerated zone from top to bottom; since hot air has a low density and rises easily, the heat-insulating zone is located at the top; the heat-insulating zone is composed of multiple heat-insulating cabinets, each with doors at the front and back, which effectively prevent heat exchange with the outside when closed; hot air branch channels are provided between the heat-insulating cabinets, in which hot air can flow upwards to exchange heat with the heat-insulating cabinets; a hot air converging channel is provided above the heat-insulating cabinets, where the hot air after heat exchange converges; a hot air return channel is provided on the left side, and a return air fan a is provided in the hot air return channel, which drives the air that has converged in the hot air converging channel to re-enter the condenser heat exchange chamber after passing through the hot air return channel to continue heat exchange, realizing a closed-loop hot air circulation. During this circulation process, the heat released by the condenser... All of this space is used for the insulation zone. Because cold air is denser and sinks easily, the refrigeration zone is located at the bottom. The refrigeration zone consists of multiple refrigerated cabinets, each with doors at the front and back. Closing these doors effectively prevents heat exchange with the outside environment. Cold air branch channels are provided between the refrigerated cabinets, allowing cold air to flow downwards and exchange heat with the cabinets. A cold air convergence channel is located below the refrigerated cabinets, where the cold air that has finished heat exchange converges. A cold air return channel is located on the right side, containing a return air fan (b). This fan drives the air that has converged in the cold air convergence channel, and after passing through the cold air return channel, it re-enters the evaporator heat exchange chamber to continue heat exchange, achieving a closed-loop cold air circulation. During this circulation process, all the cooling capacity generated by the evaporator is used in the refrigeration zone. An insulation layer is installed between the evaporator heat exchange chamber and the condenser heat exchange chamber in the equipment area to prevent interference between the hot and cold air after heat exchange.

[0008] The advantages of this invention are: The vertically layered design completely isolates the insulation zone from the refrigeration zone, maximizing energy utilization by utilizing the heat and cold generated during the operation of the condenser and evaporator; the independent hot and cold air circulation system effectively avoids the problem of mutual interference between the hot and cold areas of traditional takeaway storage lockers, significantly improving temperature control accuracy; the use of a circulating air duct design, the density difference between hot and cold air, and a return air fan to drive airflow circulation ensures efficient utilization of hot and cold air in the insulation and refrigeration zones, greatly reducing equipment operating energy consumption and promoting energy conservation and environmental protection; the condenser heat exchange chamber in the equipment area... The insulation layer between the heat exchange chamber and the evaporator further reduces energy loss between the heating and cooling equipment, improving the overall energy efficiency of the system. This utility model has a compact structure and high space utilization. Both the insulated cabinet and the refrigerated cabinet have doors at the front and back, which facilitates users' access to takeout food and ensures that the temperature inside the cabinet is not affected by the external environment. The double-door design of the insulated cabinet and the refrigerated cabinet realizes a contactless delivery mode, which is safe and hygienic. This insulated and refrigerated takeout storage cabinet is suitable for various scenarios, such as office buildings, schools, and communities. It has the advantages of high efficiency and energy saving, stable temperature, and convenient use. It is highly practical and easy to promote. Attached Figure Description

[0009] This instruction manual includes three accompanying drawings: Figure 1 This is a schematic diagram of the overall structure of an insulated and refrigerated takeout storage locker. Figure 2 This is a structural diagram of an insulated and refrigerated takeaway storage locker equipment area. Figure 3 This is a schematic diagram of an air conditioning system for a refrigerated takeaway locker.

[0010] In the diagram: 1. Condenser, 2. Condenser heat exchange chamber, 3. Compressor, 4. Expansion valve, 5. Evaporator, 6. Evaporator heat exchange chamber, 7. Insulated cabinet, 8. Hot air branch channel, 9. Hot air return channel, 10. Hot air diversion channel, 11. Hot air merging channel, 12. Return air fan a, 13. Refrigerated cabinet, 14. Cold air branch channel, 15. Cold air return channel, 16. Cold air diversion channel, 17. Cold air merging channel, 18. Return air fan b, 19. Insulation layer, 20. Cabinet door. Detailed Implementation

[0011] The present invention will be further described below with reference to specific embodiments. As shown in the figure, a refrigerated takeaway locker is characterized in that it comprises: a vertically layered insulated area, an equipment area, and a refrigerated area. The equipment area is divided into upper and lower layers. The upper layer is provided with a condenser 1, a condenser heat exchange chamber 2, a compressor 3, and an expansion valve 4. The lower layer is provided with an evaporator 5 and an evaporator heat exchange chamber 6. An insulation layer 19 is provided between the condenser heat exchange chamber 2 and the evaporator heat exchange chamber 6. The insulated area is composed of multiple insulated cabinets 7, and hot air is provided between the insulated cabinets 7. Branch channel 8, with a hot air return channel 9 on the left, achieves airflow circulation through the drive of return air fan a12 and the flow characteristics of hot air; the cold storage area consists of multiple refrigerators 13, with cold air branch channels 14 between the refrigerators 13 and a cold air return channel 15 on the right, achieving airflow circulation through the drive of return air fan b18 and the flow characteristics of hot air; the hot air from the insulation area enters the condenser heat exchange chamber 2 through the return air fan a12 in the hot air return channel 9, and then... After being heated by the condenser 1, the heated air enters the hot air distribution channel 10. The heated air rises spontaneously and is evenly distributed to each insulation cabinet 7 through the hot air branch channel 8. It merges with the hot air that has finished exchanging heat with the insulation cabinet 7 in the hot air merging channel 11 at the top. Driven by the return air fan a12, it enters the hot air return channel 9, forming a closed loop. The cold air in the cold storage area enters the evaporator heat exchange chamber 6 through the cold air return channel 15 driven by the return air fan b18. After being cooled by the evaporator 5, it enters the cold air distribution channel 16. The cooled cold air rises spontaneously... The air descends and is evenly distributed to each refrigerator 13 through the cold air branch channel 14. The cold air that has finished exchanging heat with the refrigerator 13 merges with the cold air merging channel 17 at the bottom. Driven by the return air fan b18, it returns to the cold air return channel 15, forming another closed loop. Both the insulated cabinet 7 and the refrigerator 13 are equipped with cabinet doors 20 at the front and back. When the cabinet doors 20 are closed, they ensure that the temperature inside the cabinet is not affected by the external environment. An insulation layer 19 is provided between the condenser heat exchange chamber 2 and the evaporator heat exchange chamber 6 in the equipment area, which effectively reduces energy loss between the cold and hot equipment and improves the system energy efficiency.

[0012] Further measures: Install photovoltaic panels on the top of the insulated refrigerated takeaway cabinets, which can generate electricity for self-use and also provide shade and rain protection.

[0013] Further measures: The inner walls of refrigerators and warm cabinets are lined with phase change materials, which reduces temperature fluctuations inside the refrigerators and warm cabinets when the refrigeration equipment is running intermittently.

[0014] Further measures: Install a QR code scanning authentication system on the cabinet doors to prevent accidental retrieval or theft.

[0015] The present invention and its embodiments have been described above in an illustrative manner. This description is not restrictive, and the figures shown are only one embodiment of the present invention. The actual structure is not limited to this. Therefore, if a person skilled in the art is inspired by this description and designs a similar structure and embodiment without departing from the inventive spirit of the present invention, such design should fall within the protection scope of the present invention.

Claims

1. A refrigerated and insulated takeout storage locker, characterized in that, The takeaway locker structure consists of an insulated area, an equipment area, and a refrigerated area from top to bottom. The equipment area is divided into two layers. The upper layer is equipped with a condenser (1), a condenser heat exchange chamber (2), a compressor (3), and an expansion valve (4). The lower layer is equipped with an evaporator (5) and an evaporator heat exchange chamber (6). The insulated area is equipped with multiple insulated cabinets (7). There are hot air branch channels (8) between the insulated cabinets (7). There is a hot air return channel (9) on the left side of the insulated cabinets (7). The air in the hot air return channel (9) enters the hot air distribution channel (10) after heat exchange in the condenser heat exchange chamber (2). The hot air distribution channel (10) is connected to the hot air merging channel (11) at the top through the hot air branch channel (8). 1) It is connected to the hot air return channel (9) on the left side. The hot air return channel (9) is equipped with a return air fan a (12); the cold storage area is equipped with multiple refrigerators (13). There is a cold air branch channel (14) between the refrigerators (13). The cold air return channel (15) is provided on the right side of the refrigerators (13). The air in the cold air return channel (15) enters the cold air diversion channel (16) after heat exchange in the evaporator heat exchange chamber (6). The cold air diversion channel (16) is connected to the cold air merging channel (17) at the bottom through the cold air branch channel (14). The cold air merging channel (17) is connected to the cold air return channel (15) on the right side. The cold air return channel (15) is equipped with a return air fan b (18).

2. The insulated and refrigerated takeaway storage cabinet according to claim 1, characterized in that: An insulation layer (19) is provided between the condenser heat exchange chamber (2) and the evaporator heat exchange chamber (6).

3. The insulated and refrigerated takeaway storage cabinet according to claim 1, characterized in that: The insulated cabinet (7) and the refrigerator (13) are equipped with cabinet doors (20) at the front and back.

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