A food storage container with an insulated plastic ice cube structure
By incorporating plastic ice cubes containing a refrigerant and a stainless steel tray inside the food storage container, the problem of food preservation when low temperatures are insufficient is solved, achieving stable refrigeration and extending the preservation time.
Patent Information
- Application Number
- CN202522490876.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-24
- Publication Date
- 2026-11-06
- Estimated Expiration
- 2035-11-24
AI Technical Summary
Existing food storage containers are ineffective at preserving food when there is a lack of sustained low temperatures, leading to food spoilage.
A food storage container with a plastic ice cube structure was designed. The plastic ice cubes are filled with a cold storage agent. Combined with a stainless steel tray and support plate structure, it provides a continuous and stable refrigeration environment. The food condition can be observed through the transparent lid to prevent cold loss.
It achieves continuous and stable refrigeration of food, extends the shelf life, prevents food from being over-cooled or contaminated with odors, and improves the preservation effect.
Smart Images

Figure CN224941706U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of food preservation box technology, specifically a food preservation box with an insulated plastic ice cube structure. Background Technology
[0002] Most food storage containers on the market rely on external environmental temperature control or simple insulation materials to achieve freshness. When there is a lack of continuous low temperature conditions, the preservation effect is often difficult to meet the needs, causing the stored food, especially fresh food that needs to be stored at low temperatures, to easily deteriorate due to temperature fluctuations.
[0003] For example, Chinese utility model patent CN223371747U discloses a food preservation box, which includes an upper cover, a middle box, and a lower box. The middle box has a food receiving cavity, and the lower box has a refrigerant receiving cavity. The refrigerant receiving cavity has stepped portions formed on the opposite side walls for mounting the middle box. After the middle box is placed on the stepped portions of the lower box, the upper cover can be closed and installed on the top surface of the lower box. By adopting a split structure of the upper cover, middle box, and lower box, the refrigerant is stored in the refrigerant receiving cavity formed by the lower box, while the food to be preserved is placed in the food receiving cavity formed by the middle box. In this way, the food to be preserved and the refrigerant are placed separately to prevent the refrigerant from contaminating the food. Furthermore, the refrigerant located at the bottom can provide cold air to the food to be preserved above, reducing the temperature around the food and preventing the food from spoiling due to high temperature.
[0004] The above solution prevents food from spoiling due to high temperatures by lowering the temperature around the food. This solution aims to further optimize the structural design based on existing technology to achieve food preservation. Utility Model Content
[0005] The purpose of this invention is to provide a food storage box with an insulated plastic ice block structure to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, the present invention provides the following technical solution: a food preservation box with an insulated plastic ice block structure, comprising a box body and an outer extension plate located at the top of the box body, wherein at least one plastic ice block is placed inside the box body and the plastic ice block is filled with a cold storage agent. The top of the box is equipped with a tray and a lid. The tray fits into the inner cavity of the box and is located between the box and the lid.
[0007] Preferably, after the tray is placed inside the box, the distance between the bottom surface of the tray and the top surface of the plastic ice cube is greater than or equal to zero.
[0008] Preferably, a number of strip-shaped support plates are fixed at the bottom of the box body to support the plastic ice blocks.
[0009] Preferably, a barrier cavity is formed between the plastic ice block and the bottom wall of the box, and at least one through groove communicating with the barrier cavity is opened on the surface of the plastic ice block.
[0010] Preferably, the top cover includes a cover plate, and the cover plate is provided with buckles on all four sides. After the buckles are engaged with the outer extension plate, the box body and the top cover are fixed together.
[0011] Preferably, a transparent plate is provided in the middle of the cover plate.
[0012] Preferably, a sealing strip is fixed to the bottom end of the cover plate to achieve a seal between the box body and the top cover.
[0013] Preferably, the top of the cover is movably connected to one or two handles.
[0014] Preferably, the tray is made of stainless steel.
[0015] Compared with the prior art, the beneficial effects of this utility model are: This food storage box with an insulated plastic ice block structure provides a continuous and stable refrigeration environment for the food inside by placing plastic ice blocks filled with a cold storage agent inside the box. This effectively extends the food's shelf life.
[0016] The tray is located between the box body and the top cover. It can hold food and prevent the food from coming into direct contact with the plastic ice cubes, thus preventing the food from being over-cooled or absorbing odors.
[0017] The strip support plate at the bottom of the box provides stable support for the plastic ice cubes, while also creating a barrier cavity between the plastic ice cubes and the bottom wall of the box. This reduces the rate at which cold air is transferred to the outside through the bottom of the box, thus increasing the food's shelf life.
[0018] The transparent panel in the middle of the lid allows users to easily observe the food inside the box without opening the top lid, thus preventing cold air leakage. Attached Figure Description
[0019] Figure 1 This is an exploded axial view of the present invention; Figure 2 This is a bottom view of the disassembled version of this utility model; Figure 3 This is a top view of the box body of this utility model.
[0020] In the diagram: 1. Box body; 101. Outer plate; 2. Storage tray; 3. Top cover; 301. Cover plate; 302. Transparent plate; 303. Buckle; 304. Handle; 305. Sealing strip; 4. Plastic ice cubes; 401. Through groove; 5. Support plate. Detailed Implementation
[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0022] like Figures 1-3 As shown, this utility model provides a technical solution: a food preservation box with an insulated plastic ice cube structure, including a box body 1 and an extension plate 101 located at the top of the box body 1 and integrally formed with the box body 1. The box body 1 is made of plastic material. At least one plastic ice cube 4 is placed inside the box body 1, and the plastic ice cube 4 is filled with a cold storage agent. In this solution, the cold storage agent can be a gel cold storage material formed by mixing highly absorbent resin and water. Before use, the plastic ice cube 4 is placed in a refrigerator to freeze, so that it can be fully cold stored before being placed in the box body 1.
[0023] The tray 2 on top of the box 1 is made of 304 stainless steel, which can be directly placed in the oven for baking. In addition, the stainless steel box 1 not only has good load-bearing capacity and corrosion resistance, but also can quickly conduct the cold air released by the plastic ice cubes 4 and evenly apply it to the food placed on the tray 2.
[0024] The tray 2 is adapted to the inner cavity of the box body 1. When the tray 2 is placed in the inner cavity of the box body 1, the distance between its bottom surface and the top surface of the plastic ice cube 4 is greater than or equal to zero. This distance can be achieved by using trays 2 of different depths or plastic ice cubes 4 of different thicknesses. If the distance is zero, the tray 2 is in direct contact with the plastic ice cube 4, and the cold transfer efficiency is the highest. If the distance is greater than zero, a certain air buffer layer is formed to prevent food from directly contacting the excessively cold plastic ice cube 4 and getting frostbite. In actual application, it depends on the preservation requirements of different foods.
[0025] Several strip-shaped support plates 5 fixed at the bottom of the box body 1 provide stable support for the plastic ice cubes 4, forming a barrier cavity between the plastic ice cubes 4 and the bottom wall of the box body 1. The barrier cavity can prevent the plastic ice cubes 4 from directly contacting the bottom of the box body 1, reducing the rate at which cold energy is transferred to the outside through the bottom of the box body 1. In addition, at least one through groove 401 connected to the barrier cavity is provided on the surface of the plastic ice cubes 4, allowing users to easily pick up the plastic ice cubes 4 through the through groove 401.
[0026] Buckles 303 are provided on all four sides of the cover plate 301 of the top cover 3. After the cover plate 301 is placed on the top of the box body 1, the buckles 303 are pressed down to engage with the outer extension plate 101, thereby effectively fixing the box body 1 and the top cover 3. To facilitate carrying and moving the entire food storage box, two handles 304 are movably connected to the top of the top cover 3. In addition, a sealing strip 305 is fixed at the bottom of the cover plate 301. It can be seen that the sealing strip 305 further enhances the sealing performance of the box body 1, not only reducing cold loss but also preventing leakage. The transparent plate 302 in the middle of the cover plate 301 allows users to observe the state of the food inside the box at any time without opening the top cover 3, thus preventing cold leakage. The transparent plate 302 can be made of plastic or glass.
[0027] When using, first put the plastic ice cubes 4 filled with cold storage agent into the refrigerator and freeze until they are fully cold stored. Then, select an appropriate number of plastic ice cubes 4 according to the type of food to be preserved and put them into the box body 1. Next, place the storage tray 2 into the inner cavity of the box body 1, place the food on the stainless steel storage tray 2, and then close the top cover 3. The food is sealed and fixed by the snap fastener 303 and the outer extension plate 101. The food on the storage tray 2 is preserved by the plastic ice cubes 4.
[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended embodiments and their equivalents.
Claims
1. A food preservation box with a plastic ice block structure, comprising a box body (1) and an extension plate (101) located at the top end of the box body (1), characterized in that: At least one plastic ice block (4) is placed inside the box (1), and the plastic ice block (4) is filled with a cold storage agent; The top of the box (1) is provided with a storage tray (2) and a top cover (3). The storage tray (2) is adapted to the inner cavity of the box (1) and is located between the box (1) and the top cover (3).
2. The food preservation box with plastic ice block structure according to claim 1, characterized in that: After the tray (2) is placed inside the box (1), the distance between the bottom surface of the tray (2) and the top surface of the plastic ice cube (4) is greater than or equal to zero.
3. The food storage box with an insulated plastic ice block structure according to claim 1, characterized in that: The bottom of the box (1) is fixed with several strip-shaped support plates (5), which support the plastic ice cubes (4).
4. The food preservation box with plastic ice block structure according to claim 3, characterized in that: A barrier cavity is formed between the plastic ice block (4) and the bottom wall of the box body (1), and at least one through groove (401) connected to the barrier cavity is opened on the surface of the plastic ice block (4).
5. A food storage box with an insulated plastic ice cube structure according to claim 1, characterized in that: The top cover (3) includes a cover plate (301), and the cover plate (301) is provided with buckles (303) on all four sides. After the buckles (303) are engaged with the outer extension plate (101), the box body (1) and the top cover (3) are fixed together.
6. A food storage box with an insulated plastic ice cube structure according to claim 5, characterized in that: A transparent plate (302) is provided in the middle of the cover plate (301).
7. A food storage box with an insulated plastic ice block structure according to claim 5, characterized in that: A sealing strip (305) is fixed to the bottom end of the cover plate (301), and the sealing between the box body (1) and the top cover (3) is achieved by the sealing strip (305).
8. A food storage box with an insulated plastic ice block structure according to claim 5, characterized in that: The top cover (3) has two handles (304) that are movably connected to the top.
9. A food storage box with an insulated plastic ice cube structure according to claim 1, characterized in that: The tray (2) is made of stainless steel.
Citation Information
Patent Citations
Food preservation box
CN223371747U
