Fresh food heat preservation box with short-time refrigeration function

By combining semiconductor cooling chips and heat-conducting plates in the fresh food insulated box, using ice packs for rapid cooling and extending the cooling time through heat dissipation components, the problem of rapid ice melting is solved, achieving a highly efficient short-time cooling effect.

CN223840712UActive Publication Date: 2026-01-27DONGGUAN KANGNUO PACKAGING MATERIAL CO LTD
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Patent Information

Application Number
CN202520441792.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-13
Publication Date
2026-01-27
Estimated Expiration
2035-03-13

AI Technical Summary

Technical Problem

Existing insulated food boxes suffer from rapid ice melting at high temperatures, resulting in short cooling times and difficulty in effectively maintaining low-temperature environments.

Method used

The system combines a semiconductor cooling chip with a heat-conducting plate. The ice pack provides rapid initial cooling, while the semiconductor cooling chip continuously controls the temperature. The cooling components actively dissipate heat to extend the cooling time.

Benefits of technology

It improves the cooling time, ensures the freshness of fresh food, extends shelf life, and prevents the semiconductor cooling chip from being damaged by heat buildup.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN223840712U_ABST
    Figure CN223840712U_ABST
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Abstract

The fresh food heat preservation box comprises a box body, a sliding hole is formed in the outer surface of the box body, an ice containing box is connected into the sliding hole in a sliding mode, a storage rack is arranged on the ice containing box, an extending part extending outwards is arranged at the top of the storage rack, and a limiting part abutting against the lower end face of the extending part is arranged on the side wall of the box body. The top of the box body is movably connected with a box cover through a hinge, a heat conducting piece is arranged on the box cover, a semiconductor chilling plate is arranged below the heat conducting piece, the hot face of the semiconductor chilling plate is attached to the heat conducting piece, the cold face of the semiconductor chilling plate faces downwards, and a heat dissipation assembly is arranged on the heat conducting piece. And the semiconductor chilling plate provides continuous temperature control, and due to refrigeration of the semiconductor chilling plate, the melting speed of ice blocks in the ice bag can be slowed down, the refrigeration time can be greatly prolonged, and therefore the low-temperature environment can be more efficiently maintained.
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Description

Technical Field

[0001] This utility model relates to the field of food storage box technology, specifically a fresh food insulated box with short-term cooling function. Background Technology

[0002] Fresh food insulated boxes are used to ensure the freshness and safety of fresh food during transportation. Through their excellent heat insulation performance, fresh food insulated boxes can maintain a stable internal temperature during long-term transportation, effectively extending the shelf life of fresh products and reducing food spoilage.

[0003] Chinese patent document "CN217496982U, A vegetable preservation box with built-in refrigeration function" discloses that by setting up a partition, a first through hole, a refrigeration component, a hollow plate, a second through hole and a top groove, vegetables can be kept in a relatively low temperature environment, avoiding the vegetables from rotting or losing nutrients due to excessively high temperature inside the box when they are kept inside for a long time.

[0004] The cooling components of this insulated box refer to the placement box and the collection box. The placement box is used to hold ice cubes, which are used to achieve cooling. The collection box is used to collect the melted water from the ice cubes. However, in this type of insulated box that cools by placing ice cubes, the ice cubes are prone to melting in high-temperature environments, which greatly shortens the cooling time. Utility Model Content

[0005] The purpose of this invention is to provide a fresh food insulated box with short-term cooling to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A fresh food insulated box with short-term cooling includes a box body. A sliding hole is formed on the outer surface of the box body, and an ice box is slidably connected within the sliding hole. A shelf is provided on the ice box, and an extension portion extends outward from the top of the shelf. A limiting portion is provided on the side wall of the box body, abutting against the lower end face of the extension portion. A lid is movably connected to the top of the box body via a hinge. A heat-conducting plate is provided on the lid, and a thermoelectric cooling plate is provided below the heat-conducting plate. The hot side of the thermoelectric cooling plate is in contact with the heat-conducting plate, and the cold side of the thermoelectric cooling plate faces downward. A heat dissipation component is provided on the heat-conducting plate.

[0008] Furthermore, several heat dissipation fins are provided above the heat-conducting sheet.

[0009] Furthermore, the heat dissipation component includes a housing, on which a cooling fan is mounted, the cooling fan blowing air toward the heat dissipation fins, and the bottom of the housing is provided with several heat dissipation vents.

[0010] Furthermore, the bottom of the shelf is provided with several through holes.

[0011] Furthermore, the box cover is symmetrically provided with protrusions on the side away from the hinge, and a limiting beam is provided between the two protrusions. The box body is provided with a locking block on the side of the protrusions. The locking block is provided with a locking groove, and a plug is inserted into the locking groove. The plug is provided with a movable hole, and the limiting beam is located in the movable hole.

[0012] Furthermore, the bottom of the insert block is symmetrically provided with sliding grooves, and a bottom component is installed at the bottom opening of each of the two sliding grooves by screws. A slider is movably connected to the bottom component. A spring is provided in the sliding groove. One end of the spring abuts against the corresponding slider, and the other end abuts against the corresponding sliding groove. Locking holes for inserting the two sliders are provided on both sides of the locking block.

[0013] Furthermore, the bottom of the slider is provided with a limiting block one, and the bottom component is provided with a limiting block two that can abut against the limiting block one. The limiting block two is used to limit the sliding distance of the slider.

[0014] Furthermore, the slide groove is also provided with a guide post, the spring sleeve is outside the guide post, and the slider is provided with a guide hole for the insertion of the guide post.

[0015] Furthermore, both sliders have inclined surfaces on their outer sides, and the inclined surfaces are both downward.

[0016] The beneficial effects of this utility model are:

[0017] This invention utilizes ice packs placed on an ice box to quickly absorb a large amount of heat inside the box in the initial stage, helping to rapidly lower the temperature. Meanwhile, a semiconductor cooling chip provides continuous temperature control. Due to the cooling effect of the semiconductor cooling chip, it also helps to slow down the melting rate of the ice in the ice pack, significantly increasing the cooling time, thereby maintaining a low-temperature environment more efficiently and ensuring the freshness of fresh food.

[0018] By utilizing heat dissipation components to actively dissipate heat from the heat-conducting sheet, the stable operation of the thermoelectric cooler is ensured.

[0019] Other features and advantages of this invention will be described in detail in the following detailed description section. Attached Figure Description

[0020] Figure 1 : Overall structural diagram of this utility model.

[0021] Figure 2 : Overall sectional view of this utility model.

[0022] Figure 3 Cross-sectional view of the insert block and locking block of this utility model.

[0023] Reference numerals: 1. Box body; 2. Sliding hole; 3. Ice box; 4. Shelf; 5. Lid; 6. Heat-conducting plate; 7. Semiconductor cooling chip; 8. Heat dissipation assembly; 11. Limiting part; 12. Locking block; 13. Locking groove; 14. Locking hole; 41. Extension part; 42. Through hole; 51. Protrusion; 52. Limiting beam; 53. Insertion block; 54. Movable hole; 55. Sliding groove; 56. Bottom part; 57. Slider; 58. Spring; 59. Guide post; 61. Heat dissipation fins; 81. Outer shell; 82. Cooling fan; 83. Heat dissipation vent; 561. Limiting block two; 571. Limiting block one; 572. Guide hole. Detailed Implementation

[0024] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0025] Please refer to Figure 1-3 ;

[0026] A fresh food insulated box with short-term cooling includes a box body 1. A sliding hole 2 is formed on the outer surface of the box body 1, and an ice box 3 is slidably connected within the sliding hole 2. The ice box 3 is used to hold ice packs to achieve rapid cooling inside the box body 1. When the ice in the ice packs melts, the ice box 3 can be removed to replace the ice packs. A shelf 4 is provided on the ice box 3 for placing fresh food. The shelf 4 has an outwardly extending extension 41 at its top. A limiting part 11 is provided on the side wall of the box body 1 to abut against the lower end face of the extension 41, thereby supporting the shelf 4 and preventing it from falling when the ice box 3 is removed. A lid 5 is movably connected to the top of the box body 1 via a hinge. A heat-conducting plate 6 is provided on the lid 5, and a semiconductor cooling plate 7 is located below the heat-conducting plate 6. The hot surface of the semiconductor cooling plate 7 is in contact with the heat-conducting plate. With the cold side of the thermoelectric cooler 7 facing down, it cools the interior of the cabinet 1. During operation, the thermoelectric cooler 7 is powered to maintain the low-temperature environment inside the cabinet 1. Its hot side is in contact with the heat-conducting sheet 6, which can conduct heat away. Due to the cooling effect of the thermoelectric cooler 7, this also helps to slow down the melting rate of the ice in the ice pack, greatly improving the cooling time and thus maintaining the low-temperature environment more efficiently, ensuring the freshness of fresh food. To prevent damage to the thermoelectric cooler 7 due to excessive heat accumulation on the heat-conducting sheet 6, a heat dissipation component 8 is provided on the heat-conducting sheet 6. The heat dissipation component 8 actively dissipates heat from the heat-conducting sheet 6, thereby ensuring the stable operation of the thermoelectric cooler 7. Both the cabinet 1 and the lid 5 are made of heat-insulating material to ensure heat preservation.

[0027] In this embodiment, a plurality of heat dissipation fins 61 are provided above the heat-conducting plate 6. The heat dissipation fins 61 increase the surface area of ​​the heat-conducting plate 6, so that heat can be dissipated more quickly, thereby improving the heat dissipation effect.

[0028] In this embodiment, the heat dissipation component 8 includes a housing 81, on which a cooling fan 82 is installed. The cooling fan 82 blows air toward the heat dissipation fins 61 to remove the heat from the heat-conducting fins 6. The bottom of the housing 81 is provided with several heat dissipation vents 83, which help to expel hot air, prevent excessive heat accumulation inside the housing 81, and further improve the heat dissipation effect.

[0029] In this embodiment, the bottom of the shelf 4 is provided with several through holes 42. The cold air emitted by the ice pack in the ice box 3 can flow directly to the shelf 4 through the through holes 42 and directly contact the food surface, thereby more effectively reducing its temperature and enhancing the cooling effect.

[0030] In this embodiment, the lid 5 is symmetrically provided with protrusions 51 on the side away from the hinge, and a limiting beam 52 is provided between the two protrusions 51. The box body 1 is provided with a locking block 12 on the side of the protrusions 51. The locking block 12 is provided with a locking groove 13, and a plug 53 is inserted into the locking groove 13. The plug 53 is provided with a movable hole 54. The limiting beam 52 is located in the movable hole 54. By using the limitation of the limiting beam 52, the plug 53 can only move up and down. When it is necessary to close the lid 5, the plug 53 can be pushed down into the locking groove 13 to achieve a stable closure of the lid 5.

[0031] In this embodiment, the bottom of the insert block 53 is symmetrically provided with sliding grooves 55. A bottom component 56 is fixedly installed at the bottom opening of each of the two sliding grooves 55 by screws. A slider 57 is movably connected to the bottom component 56. A spring 58 is provided inside the sliding groove 55. One end of the spring 58 abuts against the corresponding slider 57, and the other end abuts against the corresponding sliding groove 55. Locking holes 14 for inserting the two sliders 57 are provided on both sides of the locking block 12. Specifically, first, the two sliders 57 are pressed into the sliding grooves 55, at which point the spring 58 is compressed. Then, the insert block 53 is inserted downwards. When the insert block 53 is fully inserted, the two... When spring 58 resets, it pushes out the corresponding slider 57 and into the lock hole 14. At this time, the upper surface of slider 57 abuts against the side wall of the lock hole, thereby locking the cover 5 and preventing the insert block 53 from being pulled out directly. When it is necessary to open the cover 5, simply press the two sliders 57 back into the slide groove 55, so that slider 57 moves from the lock hole back into the slide groove 55. At this time, the insert block 53 is no longer restricted by the lock hole and can be pulled out directly, thereby opening the cover 5. When spring 58 loses its elasticity, it can be replaced by removing the bottom part 56 and pulling out slider 57.

[0032] In this embodiment, the bottom of the slider 57 is provided with a limiting block 571, and the bottom part 56 is provided with a limiting block 561 that can abut against the limiting block 571. The limiting block 561 is used to limit the sliding distance of the slider 57 and prevent the slider 57 from sliding out of the groove 55.

[0033] In this embodiment, a guide post 59 is also provided inside the slide groove 55, and the spring 58 is sleeved on the guide post 59. The slider 57 is provided with a guide hole 572 for the insertion of the guide post 59. The guide post 59 is used for the sliding guidance of the slider 57, and at the same time can provide guidance for the spring 58, ensuring that the spring 58 remains in a straight state during compression and reset, and preventing the spring 58 from twisting and failing due to uneven force.

[0034] In this embodiment, both sliders 57 have inclined surfaces on their outer sides, and the inclined surfaces are both downward. When the insert block 53 is inserted downward into the locking groove 13, the inclined surface on the outer side of the slider 57 first contacts the locking block 12. As the insert block 53 continues to press down, the inclined surface is subjected to pressure from the locking block 12, which forces the slider 57 to automatically retract into the sliding groove 55 without the need to manually press the slider 57 back into the sliding groove 55.

[0035] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0036] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style of the specification is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other implementations that can be understood by those skilled in the art.

Claims

1. A fresh food insulated box with short-term cooling, comprising a box body (1), characterized in that, The outer surface of the box (1) is provided with a sliding hole (2), and an ice box (3) is slidably connected in the sliding hole (2). The ice box (3) is provided with a shelf (4). The shelf (4) is provided with an outwardly extending extension (41) at the top. The side wall of the box (1) is provided with a limiting part (11) that abuts against the lower end face of the extension (41). The top of the box (1) is movably connected with a box cover (5) by a hinge. The box cover (5) is provided with a heat-conducting plate (6). A semiconductor cooling plate (7) is provided below the heat-conducting plate (6). The hot side of the semiconductor cooling plate (7) is in contact with the heat-conducting plate (6). The cold side of the semiconductor cooling plate (7) faces down. The heat-dissipating component (8) is provided on the heat-conducting plate (6).

2. A fresh food insulated box with short-term cooling as described in claim 1, characterized in that, Several heat dissipation fins (61) are provided above the heat-conducting plate (6).

3. A fresh food insulated box with short-term cooling according to claim 2, characterized in that, The heat dissipation assembly (8) includes a housing (81), on which a cooling fan (82) is installed. The cooling fan (82) blows air toward the heat dissipation fins (61), and the bottom of the housing (81) is provided with a plurality of heat dissipation vents (83).

4. A fresh food insulated box with short-term cooling as described in claim 1, characterized in that, The bottom of the shelf (4) is provided with several through holes (42).

5. A fresh food insulated box with short-term cooling according to claim 1, characterized in that, The box cover (5) has symmetrical protrusions (51) on the side away from the hinge. A limiting beam (52) is provided between the two protrusions (51). The box body (1) has a locking block (12) on the side of the protrusions (51). The locking block (12) has a locking groove (13). A plug (53) is inserted into the locking groove (13). The plug (53) has a movable hole (54). The limiting beam (52) is located in the movable hole (54).

6. A fresh food insulated box with short-term cooling according to claim 5, characterized in that, The bottom of the insert (53) is symmetrically provided with sliding grooves (55). The bottom openings of the two sliding grooves (55) are each locked with a bottom component (56) by screws. A slider (57) is movably connected to the bottom component (56). A spring (58) is provided in the sliding groove (55). One end of the spring (58) abuts against the corresponding slider (57), and the other end abuts against the corresponding sliding groove (55). The locking block (12) is provided with locking holes (14) on both sides for the insertion of the two sliders (57).

7. A fresh food insulated box with short-term cooling according to claim 6, characterized in that, The bottom of the slider (57) is provided with a limiting block one (571), and the bottom component (56) is provided with a limiting block two (561) that can abut against the limiting block one (571). The limiting block two (561) is used to limit the sliding distance of the slider (57).

8. A fresh food insulated box with short-term cooling according to claim 7, characterized in that, The slide groove (55) is also provided with a guide post (59), the spring (58) is sleeved on the guide post (59), and the slider (57) is provided with a guide hole (572) for the insertion of the guide post (59).

9. A fresh food insulated box with short-term cooling according to claim 8, characterized in that, Both sliders (57) have inclined surfaces on their outer sides, and the inclined surfaces are both downward.

Citation Information

Patent Citations

  • Vegetable fresh-keeping box with refrigeration function

    CN217496982U